JP6537745B2 - Elevator remote monitoring system - Google Patents

Description

  The present invention relates to a system for remotely monitoring an elevator.

  2. Description of the Related Art Conventionally, a control panel (control device) that performs drive control of an elevator is provided with a self-diagnosis function that checks whether or not there is a failure in the equipment that constitutes the elevator and the control panel itself.

  For example, in Patent Document 1, a self-diagnosis function is added to the microcomputer control unit of the elevator, and it is determined whether the microcomputer control unit itself is the cause of the failure of the elevator. Moreover, in patent document 2, when serial communication of an elevator control panel and an elevator monitoring control apparatus is interrupted by power supply interruption of an elevator control panel etc., it has detected that serial communication went down by using a healthy check.

JP, 2001-058769, A JP, 2009-173411, A

By the way, one of the failure modes of the elevator component devices is a so-called on failure in which the on signal continues to be output. As the causes of the ON failure, there are a case due to a failure of the device of the signal output source and a case due to a connection failure between the connection terminal extended from the device and the input terminal of the interface board of the elevator control panel. An object of the present invention is to provide an elevator remote monitoring system capable of determining whether the cause is any of the above when an ON failure is detected.

  The present invention relates to a elevator remote monitoring system. The system includes an elevator control device that performs drive control of the elevator, and a remote control device that communicates with the elevator control device and causes the elevator to perform a failure response operation. The elevator control device sends out a failure signal including a failure code identifying the failed device when detecting a failure of the device included in the elevator. The remote control device transmits a power shutoff command to the faulty device when the fault cause of the faulty device is the on-fault in which the on signal continues to be output. The elevator control device monitors an input signal from the malfunctioning device to the elevator control device after transmitting the power shutoff command, and when the on signal is detected, the elevator control device is extended from the malfunctioning device and connected to the elevator control device. It is determined that there is a connection failure between the connection terminal and the input terminal of the elevator control device that is the connection destination.

  Further, in the above invention, the remote control device monitors an input signal from the malfunctioning device to the elevator control device after transmitting the power shutoff command, and determines that the malfunctioning device itself is malfunctioning when the on signal is not detected for a predetermined period. You may

  In the above invention, the remote control device transmits the identification code of the elevator and the recovery command including the malfunctioning device to be recovered to the management device managing the worker who performs the recovery of the elevator, and the connection failure A procurement command of at least one of the determined connection terminal and the input terminal, or the replacement part of the failed device determined as the failure may be transmitted.

  Further, in the above invention, when the remote control device receives the failure signal, the remote control device receives an input signal from the faulty device to the elevator control device and an input signal from the devices included in the elevator other than the faulty device to the elevator control device. By reference, it may be determined whether the failure cause of the failed device is the on failure.

  According to the present invention, when an ON failure occurs, it is possible to determine whether the cause is a failure of a signal output source device or a connection failure between a connection terminal and an input terminal.

It is a systematic diagram showing the composition of the remote recovery system of the elevator failure in the embodiment of the present invention. It is a functional block diagram of a remote recovery system of elevator failure in an embodiment of the present invention. It is a figure which shows the structure of the maintenance database shown in FIG. It is a figure which shows the structure of the restoration diagnostic database shown in FIG. It is a flowchart which shows operation | movement of the remote recovery system of the elevator failure in embodiment of this invention. It is a flowchart which shows operation | movement of the remote recovery system of the elevator failure in embodiment of this invention. It is a figure which shows the structure of another recovery diagnostic database. It is a figure which shows the structure of another recovery diagnostic database. It is a figure explaining the structure of an elevator. It is a functional block diagram of a remote recovery system of elevator failure in an embodiment of the present invention. It is a figure explaining the narrowing-down flow of the failure cause in the embodiment of the present invention.

  Hereinafter, the elevator recovery system 100 according to the present embodiment will be described with reference to the drawings. As shown in FIG. 1, the remote recovery system 100 communicates with the elevator control device 200 that performs drive control of the elevator 20 disposed in the hoistway 11 of the building 10 and the elevator control device 200, and the elevator 20 breaks down. And a remote recovery device 300 for performing the recovery operation. The elevator 20 for the remote recovery device 300 to perform the recovery operation may be one or more. In the case where there are a plurality of elevators 20, each elevator 20 may be installed in the same building 10 or may be installed in a different building 10.

  The elevator control device 200 includes a control panel 210 that controls driving of the elevator 20 and a communication device 250. The control panel 210 is a computer that internally includes a CPU and a memory. The remote recovery device 300 also includes a remote monitoring center 310 including a communication device 320 and a monitoring panel 330, an information processing device 360, a maintenance database 370, and a recovery diagnosis database 380. The remote monitoring center 310, the information processing apparatus 360, the maintenance database 370, and the recovery diagnosis database 380 may be installed at the same place, or they may be installed at different places and connected to each other by an internet circuit or the like. Good.

  The communication device 250 is connected to the control board 210 and sends the output from the control board 210 to the communication network 30. Further, the communication device 250 receives a command for the control panel 210 selected by the information processing device 360 with reference to the recovery diagnosis database 380 via the communication device 320 and the communication network 30, and outputs the command to the control panel 210. The communication device 320 receives a signal from the control panel 210 via the communication device 250 and the communication network 30, and outputs the signal to the information processing device 360. Further, the communication device 320 transmits, to the communication network 30, an instruction for the control panel 210 selected by the information processing device 360. The communication devices 250 and 320 may be devices that perform wireless communication or devices that perform wired communication. The communication network 30 may be an internet communication network or a telephone network.

  The remote monitoring center 310 exchanges data with the information processing apparatus 360, and a monitoring board 330 for monitoring the operation status and failure status of the elevator 20 is disposed. The monitoring board 330 is provided with a display 331 on which the operation status of the elevator 20, a failure status, a notification from the information processing device 360, and the like are displayed, and a switch 332 for operating the display of the display 331. Further, the monitoring board 330 is provided with a telephone 333 for communicating with the service center 340 via the communication network 35.

  The maintenance database 370 stores history data of specifications of the elevator 20 and inspection, maintenance, repair, and the like. The recovery diagnosis database 380 stores a plurality of failure factors corresponding to the failure code outputted from the control panel 210 of the elevator 20, and data such as the number and the recovery rate.

  The information processing device 360 is a computer that internally includes a CPU and a memory. A failure signal output by the control panel 210 when a failure occurs in the elevator 20 is input to the information processing device 360 via the communication devices 250 and 320 and the communication network 30. When the failure signal is input, the information processing apparatus 360 refers to the data of the recovery diagnosis database 380 to select a recovery command and a recovery diagnosis command corresponding to the failure code included in the failure signal. The selected recovery instruction and recovery diagnosis instruction are input to the control panel 210 via the communication devices 250 and 320 and the communication network 30, and cause the elevator 20 to execute recovery operation and recovery diagnosis operation.

  As shown in FIG. 2, the maintenance database 370 includes elevator specification data 371, inspection history data 372, maintenance work history data 373, remote inspection history data 374, modulation history data 375, repair work history data 376, failure history data 377. , Failure cause classified data 378 and operation history data 379 are stored.

  Hereinafter, referring to FIG. 3, elevator specification data 371, inspection history data 372, maintenance work history data 373, remote inspection history data 374, modulation history data 375, repair work history data 376, failure history data 377, failure cause classified The data structure of the data 378 will be described. The driving history data 379 will be described later.

  The elevator specification data 371 has a data structure that stores data of the elevator 20 management number, model, manufacturing date, manufacturing number, installation building name, and usage of the installation building. The application of the installation building is, for example, an office, for general residence, a restaurant, a school or the like.

  The inspection history data 372 has a data structure for storing data of the management number of the elevator 20, the date and time of the inspection performed by the engineer 350 at the site, inspection items, and inspection results. The inspection includes, for example, inspection of the opening and closing state of the doors 13 and 26 of the elevator 20 shown in FIG. 1, inspection of the stop position of each floor (inspection of height deviation between the floor 12 and the floor 27 of the cage 22), wire Twenty-three inspections, inspections of traveling speed, etc. Further, as the inspection result, it is input whether or not an abnormality is found as a result of the inspection, or the maintenance work such as cleaning is necessary although the abnormality is not detected, or the parts need to be replaced soon. In FIG. 1, reference numeral 25 denotes a weight.

  The maintenance work history data 373 has a database structure that stores the management number of the elevator 20, the maintenance work date and time of the elevator 20 performed by the engineer 350 at the site, maintenance work items, and a maintenance work result. The maintenance work items are, for example, inspection of the operation state of the elevator 20, cleaning of the door rail of the elevator 20, oil supply to the drive device 24 shown in FIG. 1, adjustment of the brake of the elevator 20, and the like. The results of maintenance, cleaning, refueling, adjustment, etc. are entered as the maintenance result.

  The remote inspection history data 374 has a data structure that stores the control number of the elevator 20, the remote inspection date and time, the remote inspection item, and the remote inspection result. The remote inspection of the elevator 20 is performed by the control panel 210 of the elevator 20 according to a preset schedule, for example, once a month. The control panel 210 of the elevator 20 moves the cage 22 of the elevator 20 shown in FIG. 1 to a predetermined floor. During this movement, various sensors attached to the elevator 20 check whether there is any abnormality in the driving performance (acceleration, presence or absence of abnormal noise), door opening / closing, brake, emergency battery, external communication device and the like. The inspection result is stored in the remote inspection history data 374 from the information processing device 360 via the communication devices 250 and 320 and the communication network 30. The remote inspection may be performed by an instruction from the remote monitoring center 310.

  The modulation history data 375 has a data structure that stores the management number of the elevator 20, the modulation generation date and time, the modulation item, and the modulation correspondence result. The modulation of the elevator 20 refers to a case where the result of the inspection, inspection, maintenance work or remote inspection by the engineer 350 does not reach an abnormal value but changes more than the usual value of the elevator 20. . For example, as a result of the inspection of the traveling speed, although it is within the allowable value, when the previous inspection or the deviation from the value of the inspection result of the elevator 20 so far is large, The inside is recorded as "traveling speed".

  The repair work history data 376 has a data structure that stores the management number of the elevator 20, the date and time of the repair work, the repair work item, and the result of the repair work. The repair work is a repair work by parts replacement such as replacement of the wire 23, replacement of a hanger roller, replacement of a brake pad, replacement of a control board, and replacement of a relay. Therefore, the names of replacement parts such as “wire replacement”, “hanger roller replacement”, “brake pad replacement”, etc. are entered in the repair work item, and “repair work completed”, “re-repair” are entered in the repair result column. Items such as “necessary” are input.

  The failure history data 377 has a data structure that stores the management number of the elevator 20, the date and time of failure occurrence, the failure code, the recovery method, and the recovery determination result. The failure code is a code which is output from the control board 210 when a failure occurs in the elevator 20 or a code obtained by combining a number and an alphabetic character. The type of failure code is, for example, about 1000 types. In the item of the recovery method, for example, when the engineer 350 is dispatched to perform inspection, inspection, or restoration, “removal of engineer” is input. Also, in the item of recovery method, for example, when recovery is performed by the remote recovery system 100, “remote recovery” is input. When the elevator 20 is restored and the operation is resumed, the item of “restoration determination result” is input as “restoration”. Further, in the case of the recovery determination result, when the elevator 20 fails in recovery, “failure” is input.

  The failure cause classified data 378 is the number of failure causes corresponding to the failure code as a result of inspection and inspection by the engineer 350 when the failure code is output from the control panel 210, and remote control The total number of failure factors corresponding to the failure code when the recovery is performed by the recovery system 100 is stored. For example, in the case where the failure code is 0001 indicating a failure related to the doors 13 and 26, as a result of a technician 350 performing an on-site inspection, the factor for which the failure code "0001" is output is a trash clogged in the door sill (failure factor 1). Or it may be a contact failure (fault factor 2) of the switch of the door opening / closing device or another fault factor 3. Therefore, when the failure code "0001" is output, the failure factor classified data is 100 cases in the case of garbage clogging cause (failure cause 1) of the door sill, and contact failure of the switch of the door opening / closing device is the cause (failure cause 2 The data structure is such that 50 cases in the case of 10) and 10 cases in the case of other failure factors 3 are arranged such that the data is arranged in descending order of the number of cases. In the case of recovery by the remote recovery system 100, the number of failure factors corresponding to the failure code on which the recovery command is based is added to the total number of failure factors when recovery of the elevator 20 is successful by the recovery command.

  As shown in FIG. 4, the recovery diagnosis database 380 has a recovery diagnosis command set which is a set of recovery instructions and recovery diagnosis instructions in the descending order of the number of failure causes in the failure cause classified data 378 and elevators by execution of the recovery instructions. The recovery rate (%), which is the rate at which 20 failures were recovered, is stored. The recovery diagnosis database 380 is a database in which the recovery diagnosis instruction set and the recovery rate are linked to the failure cause classified data 378 described above.

  Hereinafter, the data configuration of the recovery diagnosis database 380 in the case where the failure code is “0001” indicating a failure related to the doors 13 and 26 will be described. If the door sill is clogged with debris (Failure factor 1), the recovery diagnosis data will be "door circuit reset + door high torque open / close" as recovery command in the number data of fault cause 1, "door open / close diagnosis" as recovery diagnosis command The recovery diagnosis instruction set A, which is a set of two instructions, is linked with the recovery rate x% by the recovery operation according to the recovery instruction. Similarly, in the case where the contact failure of the switch of the door opening and closing device is the factor (fault factor 2), the recovery diagnosis data is the number data of the fault factor 2 as a recovery command "door circuit reset + door opening / closing retry", recovery diagnosis It has a data configuration in which a recovery diagnosis instruction set B, which is a set of two instructions of "door open / close diagnosis", is linked as an instruction and a recovery rate y% of recovery operation by this recovery instruction. Similarly, in the case of the failure factor 3, the recovery diagnosis data has a data configuration in which the recovery diagnosis instruction set C and the recovery rate z% are linked to the number data of the failure factor 3. Thus, the recovery diagnosis database 380 includes a failure code, a failure factor corresponding to the failure code, the number of failure causes, a recovery diagnosis command set which is a set of recovery instructions and recovery diagnosis, and a recovery rate. It corresponds and is stored in the database. In the present embodiment, the recovery rate y% is a value larger than the recovery rate x% and z%, and the recovery diagnosis instruction set B has a higher recovery rate than the recovery diagnosis instruction set A and the recovery diagnosis instruction set C. ing.

  The operation of the remote recovery system 100 when a failure signal is issued from the elevator 20 will be described below with reference to FIGS. 2, 5 and 6. In the following description, the remote recovery operation when the failure code signal "0001" related to the doors 13, 26 is transmitted first will be described. Next, the remote recovery operation in the case where the failure code "0002" related to the control circuit incorporated in the control panel 210 is transmitted will be described. Next, the remote recovery operation when the failure code "0003" related to the brake in the drive unit 24 is transmitted will be described. The remote recovery system 100 can also cope with the case where a failure code regarding a part other than the above is transmitted.

  As shown in step S101 of FIG. 2 and FIG. 5, the control panel 210 of the elevator 20 determines whether or not a failure has occurred in the elevator 20. When a failure such as a door open / close failure occurs with respect to the doors 13 and 26 of the elevator 20, for example, the control panel 210 communicates a failure occurrence date / time and a failure code “0001” indicating that the failure is a failure regarding the door Output to 250. If no failure occurs in the elevator 20, the control board 210 returns to the beginning of step S101 and continues monitoring the elevator 20.

  When failure code "0001" is input from control panel 210 to communication device 250, as shown in FIG. 2 and step S102 in FIG. 5, the failure code "0001" and failure number including elevator 20 management number and failure occurrence date and time A signal is sent to the communication network 30. As shown in step S103 of FIG. 2 and FIG. 5, the communication device 320 of the remote monitoring center 310 receives the failure signal transmitted by the communication device 250 via the communication network 30. When the communication device 320 receives the failure signal, the communication device 320 outputs the failure code “0001” included in the failure signal, the management number of the elevator 20, and the failure occurrence date and time to the information processing device 360. The information processing apparatus 360 stores the input failure code “0001”, the management number of the elevator 20, and the failure occurrence date and time in the failure history data 377 of the maintenance database 370.

  Then, as shown in step S104 of FIG. 5, the information processing apparatus 360 determines whether the elevator 20 in which the failure has occurred can be remotely restored. As shown in FIGS. 2 and 3, the information processing apparatus 360 acquires the model, manufacturing date, and serial number of the elevator 20 from the elevator specification data 371 using the management number of the elevator 20. Based on the acquired specification data, the information processing apparatus 360 confirms whether or not the elevator 20 has a specification that allows a recovery operation and a recovery diagnosis operation according to a recovery command from the remote recovery device 300 and a recovery diagnosis command. If the elevator 20 is a model that can not perform the remote recovery operation, the information processing device 360 outputs a signal to notify the remote monitoring center 310 that remote recovery is not possible, as shown in step S124 of FIGS. 2 and 5. Do.

Further, as shown in FIG. 2, the information processing apparatus 360 refers to inspection history data 372, maintenance operation history data 373, remote inspection history data 374, modulation history data 375, repair work history data 376, and failure history data 377. Check the following (a) to (f).
(A) The elevator 20 has been instructed to adjust in recent inspection.
(B) The elevator 20 has a maintenance plan recently or on the same day, and the possibility of adjustment error is predicted.
(C) The elevator 20 has a diagnosis result of abnormality in the remote inspection.
(D) Recently, the elevator 20 has generated modulation.
(E) The elevator 20 has recently been subjected to repair work.
(F) The elevator 20 has recently issued a failure signal with the same failure code "0001".

  And when it corresponds to any one or more of said (a)-(f), it is better for information processing apparatus 360 to dispatch engineer 350 to building 10 rather than restoration by remote restoration system 100. It is determined that the result is NO, in step S104 of FIG. Then, as shown in step S 124 of FIG. 2 and FIG. 5, the information processing device 360 outputs a notification of remote recovery impossible to the remote monitoring center 310.

  Furthermore, the information processing device 360 uses the elevator specification data 371 and the failure history data 377 using the management number of the elevator 20 to check whether the building 10 is a building where there are many false transmissions of failure signals. In such a case, the information processing apparatus 360 determines that dispatching the engineer 350 to the building 10 is preferable to recovery by the remote recovery system 100 because there is a high possibility of false transmission of a failure signal. In step S104 of 5, it is determined as NO. Then, the information processing apparatus 360 outputs a notification of the remote recovery impossibility to the remote monitoring center 310, as shown in step S124 of FIG. 2 and FIG.

  The notification that the remote recovery is not possible, which is output from the information processing device 360 to the remote monitoring center 310, is displayed on the display 331 of the remote monitoring center 310, as shown in FIG. If the monitor 334 confirms this display, as shown in step S125 of FIG. 2 and FIG. 6, the supervisor 334 instructs the elevator 20 to stop operating and performs an announcement operation. Then, the supervisor 334 instructs the service center 340 in the vicinity of the building 10 to dispatch the engineer 350 to the building 10, as shown in step S126 in FIG. 2 and FIG.

  If the elevator 20 determines in step S104 of FIG. 5 that remote recovery is not possible, the information processing apparatus 360 in step S103 stores the input failure code "0001", the management number of the elevator 20, and the failure occurrence date as a maintenance database. It stores in the failure history data 377 of 370. Then, the information processing apparatus 360 ends the remote recovery operation without updating other data in the maintenance database 370 and updating the recovery diagnosis database 380.

On the other hand, in step S104 shown in FIG. 5, the information processing apparatus 360 checks the inspection history data 372, maintenance operation history data 373, remote inspection history data 374, modulation history data 375, repair work history data 376 as shown in FIG. The following (g) to (n) are confirmed with reference to the failure history data 377.
(G) The elevator 20 is a specification that allows a recovery operation and a recovery diagnosis operation according to a recovery command from the remote recovery device 300 and a recovery diagnosis command.
(H) The elevator 20 has not been instructed to adjust in recent inspections.
(I) The elevator 20 has no maintenance plan recently or on the day, and the possibility of adjustment error is not predicted.
(J) The elevator 20 has no abnormality diagnosis result in the remote inspection.
(K) Recently, there is no occurrence of modulation in the elevator 20.
(L) The elevator 20 has not been recently repaired.
(M) The elevator 20 has not recently issued a failure signal with the same failure code "0001".
(N) The building 10 is not a building where there are many false signal transmissions of failure signals.

  Then, if all the requirements (g) to (n) are satisfied, the information processing apparatus 360 determines YES in step S104 shown in FIG. 5 and starts remote recovery to the remote monitoring center 310 in step S105. Notice. This signal is displayed on the display 331 of the remote monitoring center 310. Thereby, the supervisor 334 of the remote monitoring center 310 is notified that remote recovery of the elevator 20 is started.

  When the information processing apparatus 360 notifies the remote monitoring center 310 of the remote recovery start in step S105, the process proceeds to step S106 shown in FIG. 5, and selects the recovery command and recovery diagnosis command corresponding to the failure code "0001". As described above with reference to FIG. 4, the recovery diagnosis database 380 is a database in which the recovery diagnosis instruction set and the recovery rate are linked to the failure cause classified data 378. Hereinafter, the data configuration of the recovery diagnosis database 380 in the case where the failure code is “0001” indicating a failure related to the doors 13 and 26 will be briefly described again. If the door sill is clogged up as a cause (fault factor 1), the recovery diagnosis data is "No. door circuit reset + door high torque open / close" as the recovery command in the number data of fault cause 1; It has a data configuration in which a recovery diagnosis instruction set A, which is a set of two instructions of “diagnosis”, and a recovery rate x% by the recovery operation by this recovery instruction are linked. Similarly, in the case where the contact failure of the switch of the door opening and closing device is the factor (fault factor 2), the recovery diagnosis data is the number data of the fault factor 2 as a recovery command "door circuit reset + door opening / closing retry", recovery diagnosis It has a data configuration in which a recovery diagnosis instruction set B, which is a set of two instructions of "door open / close diagnosis", is linked as an instruction and a recovery rate y% of recovery operation by this recovery instruction. Similarly, in the case of the cause of failure 3, the recovery diagnosis data has a data configuration in which the number of data of the cause of failure 3 is linked with the recovery diagnosis instruction set C and the recovery rate z%. Also, as described above, the recovery rate y% is a value larger than the recovery rate x% and z%, and the recovery diagnosis instruction set B has a recovery rate higher than that of the recovery diagnosis instruction set A and recovery diagnosis instruction set C. It's getting higher.

  The information processing device 360 may select, as the recovery command, a command corresponding to the failure factor having the largest number of failure factors among the plurality of failure factors corresponding to the failure code “0001”. Further, the information processing device 360 may select a command with the highest recovery rate among the plurality of commands corresponding to the failure code “0001” as the recovery command. Then, the information processing apparatus 360 selects a recovery diagnosis instruction set in which the recovery diagnosis instruction corresponding to the selected recovery instruction is set with the selected recovery instruction.

  First, a case where the information processing device 360 selects a command corresponding to the failure factor having the largest number of failures among the plurality of failure factors corresponding to the failure code “0001” will be described as the recovery command. The information processing apparatus 360 refers to the recovery diagnosis database 380 to confirm the cause of the largest number of failures in the case of the failure code “0001” as the recovery command. Then, the information processing device 360 is a recovery command to execute the recovery operation corresponding to the clogging of the door sill (failure cause 1) which is the largest number of failure causes, “door circuit reset + door high torque opening and closing”, A recovery diagnosis command set A consisting of two “door open / close diagnosis” which is a recovery diagnosis command for executing a recovery diagnosis operation corresponding to the result of the recovery operation is selected.

  Next, a case where the information processing device 360 selects a command with the highest recovery rate among the plurality of commands corresponding to the failure code “0001” as the recovery command will be described. The information processing apparatus 360 refers to the recovery diagnosis database 380 to confirm a recovery rate with the highest recovery rate corresponding to the failure code “0001” as a recovery command. Then, the information processing device 360 is a recovery command to execute the recovery operation corresponding to the cause (the failure factor 2), which is the contact failure of the switch having the highest recovery rate y%, “door circuit reset + door opening / closing retry”, A recovery diagnosis command set B consisting of two "door open / close diagnosis" which is a recovery diagnosis command for executing a recovery diagnosis operation corresponding to the result of the recovery operation is selected.

  When selecting a recovery diagnosis command set, the selection based on the most frequent failure factor corresponding to the failure code "0001" or the recovery rate of the recovery diagnosis command set corresponding to the failure code "0001" is as follows: You may go as you like. For example, of the ratio of the maximum number to the next number (number of cases), and the ratio of the maximum recovery rate to the next recovery rate (restoration rate), the larger the ratio, that is, for the next numerical value You may select the one where the maximum value protrudes. Also, for example, if the previous remote recovery failed, a selection method different from the previous one may be taken. Further, the selection of the recovery diagnosis command set may be determined, for example, according to the type, specification, and the like of the elevator 20.

  In the following description, a case where the information processing apparatus 360 selects the recovery diagnosis instruction set A based on the most frequent failure factor 1 corresponding to the failure code "0001" will be described.

  When the recovery diagnosis command set A is selected in step S106 of FIG. 5, the information processing device 360 transmits the selected recovery diagnosis command set A from the communication device 320, as shown in step S107 of FIG. 2 and FIG. As shown in step S108 of FIG. 2 and FIG. 5, when the communication device 250 receives the recovery diagnosis command set A from the communication device 320, the communication device 250 outputs the recovery command and the recovery diagnostic command to the control panel 210.

  First, as shown in step S109 of FIG. 5, the control panel 210 is configured such that the elevator 20 is stopped, the weight sensor of the cage 22, the camera in the cage 22, the person sensor in the cage 22, etc. Make sure there are no passengers inside. Then, after confirming that the elevator 20 is stopped and that there are no passengers in the cage 22, the control panel 210 starts remote recovery from the speaker of the communication device installed in the cage 22 The elevator door opens and closes.

  When the announcement is completed, the control panel 210 proceeds to step S110 in FIG. 5 and executes the recovery operation according to the recovery command. Since the received recovery command is "door circuit reset + door high torque opening / closing", which is a recovery command for executing the recovery operation corresponding to the door sill clogged (fault factor 1), the control panel 210 First, the door circuit of the control board 210 is reset. In this operation, the door circuit resets the state in which the door 13 or the door 26 can not be opened and closed and the open (or closed) or half open (or half closed) state is detected, and the door 13 or 26 is opened and closed. This is a possible operation. Next, the control panel 210 raises and lowers the torque of the drive motor of the door 13 and the door 26 by 20 to 30% than usual to open and close the door 13 and the door 26 with a larger force than usual. This operation is an operation of moving the refuse that has been clogged in the threshold of the door from the threshold and restoring the opening and closing operation of the doors 13 and 26 to the normal state. As shown in step S111 of FIG. 5, the control panel 210 is restored in order to confirm whether the dust which has been clogged in the sill of the door 13, 26 moves by the above operation and the opening and closing of the door 13, 26 is restored. Execute "door open / close diagnosis" which is a diagnosis command. The control panel 210 opens and closes the door 13 and the door 26 with a normal torque, and can perform the opening and closing operation in a predetermined opening and closing time, or does the current of the drive motor of the door 13 and the door 26 not become larger than usual Confirm. Next, the control panel 210 lowers the torque of the drive motor by about 20% than usual, opens and closes the door 13 and the door 26, and confirms whether or not there is an abnormality in the opening and closing time.

  When the control panel 210 determines that the doors 13 and 26 have been restored to the normal state by the recovery diagnosis operation, as shown in step S112 of FIG. 5, the process proceeds to step S113 of FIG. In step S113, the control panel 210 outputs a determination result signal that the elevator 20 has been restored. This signal is transmitted from the communication device 250 to the communication network 30. The transmitted determination result signal is received by the communication device 320 as shown in step S114 of FIG. 6, and the determination result is input to the information processing device 360. Further, as shown in step S115 of FIG. 6, the determination result is notified from the information processing apparatus 360 to the remote monitoring center 310, and the result is displayed on the display 331 of the remote monitoring center 310. If the monitor 334 of the remote monitoring center 310 confirms this display, as shown in step S116 of FIG. 6, operation resumption of the elevator 20 and announcement operation are performed. Further, the information processing device 360 updates the maintenance database 370 and the recovery diagnosis database 380 as shown in step S117 and step S118 of FIG.

  On the other hand, when the control panel 210 determines NO in step S112 of FIG. 5 as a result of the recovery diagnosis operation, the control panel 210 proceeds to step S119 of FIG. In step S119, the control panel 210 outputs a determination result signal indicating that restoration of the elevator 20 has failed. This signal is transmitted from the communication device 250 to the communication network 30. The transmitted determination result signal is received by the communication device 320 as shown in step S120 of FIG. 6, and the determination result is input to the information processing device 360. Further, as shown in step S121 of FIG. 6, the determination result is notified from the information processing apparatus 360 to the remote monitoring center 310, and the result is displayed on the display 331 of the remote monitoring center 310. When the supervisor 334 confirms this display, as shown in step S122 of FIG. 6, the supervisor 334 instructs to stop the operation of the elevator 20 and performs an announcement operation. In addition, as shown in step S123 of FIG. 2 and FIG. 6, the supervisor 334 instructs the service center 340 in the vicinity of the building 10 to dispatch the engineer 350 to the building 10 by the telephone 333 as shown in FIG. Further, the information processing device 360 updates the maintenance database 370 and the recovery diagnosis database 380 as shown in step S117 and step S118 of FIG.

  The information processing apparatus 360 updates the maintenance database 370 as follows when a determination signal indicating that the elevator 20 has been restored as shown in step S113 in FIG. 5 is input.

  When a determination signal indicating that the elevator 20 has been recovered as shown in step S113 of FIG. 5 is input, the information processing apparatus 360 sets “remote recovery” in the recovery method item of the failure history data 377, Store "Recovery" in the item. As described above, when the communication device 320 receives a failure signal, the information processing device 360 maintains the failure code “0001” input from the communication device 320, the management number of the elevator 20, and the failure occurrence date and time It stores in the failure history data 377 of the database 370. Therefore, all items of the failure history data 377 are updated by storing the recovery method and recovery determination result this time.

  Further, in the present remote recovery, the information processing apparatus 360 refers to the recovery diagnosis database 380, and in the case of the failure code “0001” as the recovery command, the door sill is clogged up with dust which is the most frequent failure cause (failure factor 1 2) “door circuit reset + door opening / closing retry” which is a recovery command for executing the recovery operation corresponding to), and “door opening / closing diagnosis” which is a recovery diagnosis command for executing a recovery diagnosis operation corresponding to the result of the recovery operation. The recovery operation and the recovery operation are performed by selecting the recovery operation command set A consisting of two. Therefore, if the elevator 20 is successfully restored, the failure code "0001" of the recovery diagnosis database 380 and the number of failure factor 1 (door sill jam) are increased by one, and the recovery rate is equivalent to the successful recovery. Raise Further, the information processing device 360 increases the number of failure causes 1 of the failure code “0001” of the failure causes classified data 378 by one.

  On the other hand, the information processing apparatus 360 updates the maintenance database 370 and the recovery diagnosis database 380 as follows when a determination signal indicating that the recovery of the elevator 20 has failed as shown in step S119 of FIG. 5 is input. When a determination signal indicating that the recovery of the elevator 20 has failed as shown in step S119 of FIG. 5 is input, the information processing apparatus 360 sets “remote recovery” to the recovery method item of the failure history data 377, recovery determination Store "failure" in the item of the result. In addition, the number of failure code “0001” of the recovery diagnosis database 380 and the number of failure cause 1 (the garbage clogged with the door sill) are kept as they are, and the recovery rate is lowered by the failure. If the recovery fails, the number of failure causes 1 of the failure code “0001” in the failure causes classified data 378 is not changed.

  In the above description, the case where the information processing apparatus 360 selects the recovery diagnosis instruction set A based on the largest number of failure factors corresponding to the failure code "0001" has been described. When the information processing apparatus 360 selects the restoration diagnosis command set B based on the restoration rate of the restoration diagnosis command set corresponding to the failure code "0001", the normal operation is performed instead of the "door high torque opening / closing" restoration operation. The difference is that recovery operation of “door opening and closing retry” is performed to open and close the doors 13 and 26 again by torque. The other operations are the same as when recovery diagnosis command set A is selected.

  If remote recovery of the elevator 20 is successful, the number of door sill dust clogs (fault factor 1), which is the most frequent fault factor in the case of the fault code “0001”, will increase. Therefore, when the remote recovery system 100 selects the recovery diagnosis command set based on the most frequent failure factor corresponding to the failure code "0001", the failure code "0001" is input at the next remote recovery. At this time, the information processing device 360 selects the recovery diagnosis instruction set A again. Further, when the recovery rate of the recovery diagnosis command set A becomes higher than the recovery rate of the recovery diagnosis command set B, the recovery rate of the information processing device 360 among the plurality of commands corresponding to the failure code “0001” is Even when the highest command is selected as the recovery command, the recovery diagnosis command set A is selected.

  On the other hand, if the remote recovery of the elevator 20 fails, the number of failure causes 1 of the failure code “0001” of the failure causes classified data 378 is not changed, but the recovery rate of the recovery diagnosis command set A decreases. Thereby, the recovery rate of the recovery diagnosis command set B becomes relatively high. That is, the recovery rate ratio of the recovery diagnosis command set B to the recovery diagnosis command set A becomes high. When the recovery rate ratio becomes larger than the number ratio calculated as the ratio of the number of failure factors 1 to the number of failure causes 2, the information processing apparatus 360 recovers among the plurality of commands corresponding to the failure code "0001". The command with the highest rate will be selected as the return command. Therefore, when the failure code "0001" is input at the time of the next remote recovery, the information processing apparatus 360 selects the recovery diagnosis instruction set B having the highest recovery rate. Also, when the information processing apparatus 360 does not select the recovery diagnosis command set A that failed in recovery in the previous remote recovery, the failure factor 2 is linked to the failure factor 2 having the largest number of cases corresponding to the failure code “0001”. Select the restored diagnosis command set B.

  In addition, when the information processing apparatus 360 selects the recovery diagnosis instruction set B having the highest recovery rate among the plurality of commands corresponding to the failure code "0001" and succeeds in the recovery of the elevator 20, the recovery diagnosis instruction set The recovery rate of B is high. Therefore, in the next remote recovery, the information processing apparatus 360 selects the recovery diagnosis command set B as in the previous time. On the other hand, when recovery of the elevator 20 fails in the recovery diagnosis command set B, the recovery rate of the recovery diagnosis command set B becomes low. Then, when the recovery rate of the recovery diagnosis command set B becomes lower than the recovery rate of the recovery diagnosis command set A, the information processing device 360 selects the recovery diagnosis command set A. When the information processing apparatus 360 does not select the recovery diagnosis command set B for which recovery failed in the previous remote recovery, recovery diagnosis with the high recovery rate corresponding to the failure code “0001” next to the recovery diagnosis command set B Select command set A.

  Thus, the remote recovery system 100 increases the number of failure factors and the recovery rate of the selected recovery diagnosis command set when remote recovery is successful. Also, if the remote recovery fails, the remote recovery system 100 reduces the recovery rate of the selected recovery diagnosis command set while maintaining the number of failure factors. For this reason, if remote recovery is successful, there is a high possibility that the recovery diagnosis command set selected in the remote recovery will be selected at the next remote recovery. Also, if remote recovery fails, the recovery diagnosis command set selected in the remote recovery is less likely to be selected in the next remote recovery. For this reason, as the number of times of remote recovery increases, the information processing apparatus 360 can select a recovery diagnosis instruction set with high recovery possibility corresponding to the failure code from the recovery diagnosis database 380, and the recovery of the elevator 20 is assured It is possible to improve the quality.

  In the embodiment described above, the operation of the remote recovery system 100 when the failure code “0001” indicating that the door 13 or 26 is a failure is output from the control panel 210 has been described. Next, a case where a failure code "0002" indicating that the control circuit is in failure is output from the control panel 210 will be described. The description of the same operation as when the failure code "0001" is output will be omitted.

  If the failure code is "0002" indicating a failure related to the control circuit, as a result of an engineer 350 performing an on-site inspection, the factor for which the failure code "0002" is output has a defect in the relay attached to the control panel 210 In the case (fault factor 4), there is a failure in the relay drive circuit that drives the relay (fault factor 5), or other fault factor 6. In case of failure code “0002”, the failure factor classified data 378 is 100 cases in the case of the relay failure cause (fault cause 4), 50 cases in the relay drive circuit failure cause (fault cause 5), etc. In the case of failure factor 6 of 10, there is a data structure such as 10 cases, and data is arranged in descending order of the number of cases. As described above, in the case of recovery by the remote recovery system 100, the number of failure factors corresponding to the failure code that is the basis of the recovery command when the recovery of the elevator 20 is successful by the recovery command is the total failure factor. Is added to the number of

  As shown in FIG. 7, the recovery diagnosis database 380 is a database in which the recovery diagnosis instruction set and the recovery rate are linked to the failure cause classified data 378. Hereinafter, the data configuration of the recovery diagnosis database 380 in the case where the failure code is “0002” indicating a failure related to the control circuit will be described. If there is a problem with the relay (fault factor 4), the recovery diagnosis data is “number of data of fault factor 4” as a recovery command “control circuit reset + low speed up, down operation” and as recovery diagnosis command “each floor operation, high speed It has a data configuration in which a recovery diagnosis command set D, which is a set of two commands of "operation diagnosis", and a recovery rate a% by a recovery operation according to the recovery diagnosis command are linked. When the relay drive circuit has a defect (fault factor 5), the recovery diagnosis data is "number of data of fault factor 5" as a recovery command as "control circuit reset + top floor, operation between bottom floors" as a recovery command. It has a data configuration in which a recovery diagnosis command set E, which is a set of two instructions for each floor operation and high-speed operation diagnosis, is linked with a recovery rate b% by recovery operation according to the recovery diagnosis command. Similarly, in the case of the failure factor 6, the recovery diagnosis data has a data configuration in which the number of data of the failure factor 6 is linked with the recovery diagnosis command set F and the recovery rate c%. Thus, the recovery diagnosis database 380 includes a failure code, a failure factor corresponding to the failure code, the number of failure causes, a recovery diagnosis command set which is a set of recovery instructions and recovery diagnosis, and a recovery rate. It corresponds and is stored in the database. The recovery rate is highest for b% of the recovery diagnosis command set E.

  When the failure code is "0002", when the information processing device 360 selects the recovery diagnosis instruction set D based on the failure factor having the largest number of cases corresponding to the failure code "0002", the information processing device 360 transmits the restoration diagnosis command set D to the control board 210. After executing the control circuit reset operation, the control board 210 executes low speed up and down operations to raise and lower the cage 22 of the elevator 20 at low speed. Thereafter, the control board 210 performs each floor operation to stop on each floor without opening and closing the doors 13 and 26, performs high-speed operation to operate between a plurality of floors at high speed, and operates to stop on each floor, and at high speed. Check if there is an abnormality in driving. The control panel 210 outputs the determination result that the restoration of the elevator 20 is successful when there is no abnormality in each floor operation and high speed operation. Moreover, when abnormality is detected in each floor operation and high-speed operation, the control panel 210 outputs the determination result in which restoration of the elevator 20 has failed. The determination result is input from the control panel 210 to the information processing device 360 via the communication devices 250 and 320. As described above, the failure history data 377, failure factor data 378, recovery diagnosis can be selected based on the determination result so that the information processing apparatus 360 can select a recovery diagnosis instruction set with higher possibility of recovery. Update the database 380.

  When the information processing device 360 selects the recovery diagnosis instruction set E with the highest recovery rate corresponding to the failure code “0002”, the information processing device 360 transmits the recovery diagnosis instruction set E to the control panel 210. After executing the control circuit reset operation, the control board 210 performs the operation between the bottom floor and the top floor, which moves the cage 22 of the elevator 20 between the bottom floor and the top floor. Next, the control board 210 executes each floor operation and high-speed operation described above, performs restoration diagnosis of the elevator 20, and outputs a determination result as to whether the restoration of the elevator 20 has succeeded or failed. As described above, the determination result is input from the control panel 210 to the information processing device 360 via the communication devices 250 and 320. The information processing apparatus 360 updates the failure history data 377, the failure cause classified data 378, and the recovery diagnosis database 380 so that a recovery diagnosis instruction set having a higher possibility of recovery can be selected based on the determination result.

  Next, the case of "0003" indicating that the failure code is a failure related to the brake will be described.

  If the failure code is 0003 indicating a failure related to the brake, as a result of an engineer 350 performing an on-site inspection, the factor for which the failure code "0003" is output is due to an abnormality in the brake circuit of the control panel 210 (failure factor 7). Other failure factors 8 and 9 may occur. Therefore, in the case of failure code “0003”, the failure factor classified data 378 is 100 cases for the cause (fault factor 7) of the brake circuit abnormality, 50 cases for the failure factor 8 and other failure factor 9 There are 10 data structures, and the data is arranged in descending order of the number of cases. As described above, in the case of recovery by the remote recovery system 100, the number of failure factors corresponding to the failure code that is the basis of the recovery command when the recovery of the elevator 20 is successful by the recovery command is the total failure factor. Is added to the number of

  As shown in FIG. 8, the recovery diagnosis database 380 is a database in which the recovery diagnosis instruction set and the recovery rate are linked to the failure cause classified data 378. Hereinafter, the data configuration of the recovery diagnosis database 380 when the failure code is “0003” indicating a failure related to the brake will be described. When the abnormality of the brake circuit is the factor (fault factor 7), the recovery diagnosis data is two items: "control circuit reset" as recovery command to the number data of fault factor 7, and "brake torque diagnosis" as recovery diagnosis command. It has a data configuration in which a recovery diagnosis instruction set G, which is a set of instructions, and a recovery rate d% by recovery operation according to the recovery diagnosis instruction are linked. In the case of failure factor 8 and failure factor 9, the recovery diagnosis data includes recovery diagnosis command set H and recovery rate e%, recovery diagnosis command set I and recovery rate f in each number data of failure factor 8 and failure factor 9 Is linked to each other. Thus, the recovery diagnosis database 380 includes a failure code, a failure factor corresponding to the failure code, the number of failure causes, a recovery diagnosis command set which is a set of recovery instructions and recovery diagnosis, and a recovery rate. It corresponds and is stored in the database. The recovery rate is highest for e% of the recovery diagnosis command set H.

  Next, the operation of the remote recovery system 100 when the control panel 210 detects the occurrence of a failure related to a brake will be described.

  If the failure code is "0003", the information processing apparatus 360 selects the recovery diagnosis instruction set G based on the largest number of failure factors corresponding to the failure code "0003" in step S106 in FIG. If the information processing apparatus 360 has received the command, the information processing apparatus 360 transmits the recovery diagnosis command set G to the control panel 210.

  When the failure code is "0003", when the recovery diagnosis command set G is received, the control panel 210 executes the brake torque diagnostic operation in the field confirmation shown in step S109 of FIG. In the brake torque diagnostic operation, the mechanical brake is used to prevent the winding machine in the drive unit 24 from rotating, and the driving force is applied to the winding machine to confirm that the winding machine does not rotate with the holding force of the brake. It is an operation. If there is no abnormality in this operation, the control panel 210 announces the remote restoration as the site confirmation of the elevator 20 is completed in step S109 of FIG. Thereafter, in step S110 of FIG. 5, the control board 210 executes a control circuit reset operation.

  Thereafter, the control board 210 executes a brake torque diagnostic operation. When there is no rotation of the hoist due to this operation, the control board 210 outputs the determination result that the elevator 20 has been restored successfully. In addition, when the hoisting machine rotates, the control board 210 outputs the determination result that recovery of the elevator 20 has failed. The determination result is input from the control panel 210 to the information processing device 360 via the communication devices 250 and 320. The information processing apparatus 360 updates the failure history data 377, the failure cause classified data 378, and the recovery diagnosis database 380 so that a recovery diagnosis instruction set having high recovery possibility can be selected based on the determination result.

  Further, as described above, the information processing apparatus 360 selects the recovery diagnosis instruction set H having the highest recovery rate corresponding to the failure code “0003” and causes the control panel 210 to execute the recovery operation and the recovery diagnosis operation. You can also.

  The control panel 210 determines that remote recovery can not be started if there is an abnormality in the brake torque diagnostic operation, and does not execute the remote recovery operation, and notifies the remote monitoring center 310 that remote recovery is not possible.

  As described above, when various failures occur in the elevator 20, the remote recovery system 100 performs a recovery operation, recovery diagnosis on the elevator 20 by a command from the remote recovery device 300 disposed at a location away from the elevator 20. The operation can be performed to restore the elevator 20. Therefore, when a failure occurs in the elevator 20, the elevator 20 can be restored in a short time without sending the engineer 350 to the site, and the operation service of the elevator 20 can be improved.

  Further, the remote recovery system 100 can select failure recovery command set having high possibility of recovery at the next remote recovery based on the recovery determination result, failure history data 377, failure cause classified data 378, Update the recovery diagnostic database 380. For this reason, as the number of times of remote recovery increases, the information processing apparatus 360 can select a more appropriate recovery diagnostic instruction set corresponding to the failure code from the recovery diagnostic database 380. As a result, the elevator 20 can be restored reliably, and the time required for the restoration can be shortened to improve the operation service of the elevator 20.

<Processing to narrow down malfunctioning devices>
In the flow chart of the remote recovery system of FIG. 5 and FIG. 6, when the remote recovery operation is not possible, the remote monitoring center is notified of the notification that remote recovery is not possible (S124), operation suspension (S125) and dispatch of technicians. Although (S126) has been performed, the failure cause narrowing operation may be performed prior to the notification that remote recovery is not possible.

  For example, when an on failure of various sensors provided in the elevator 20 occurs, the failure may be caused by a failure of the sensor itself (such as a sensor circuit) or a connection failure of a terminal extended from the sensor. It can be mentioned.

  An enlarged view of the elevator 20 shown in FIG. 1 is illustrated in FIG. In this example, failure of the landing sensor 400 provided in the cage 22 will be described. The configuration that is less relevant to the failure and the process for narrowing down the cause of the failure is appropriately omitted.

  The cage 22 is hung on a wire 23, and a weight 25 (counterweight) is hung on the other end of the wire 23. The wire 23 is wound around a driving device 24 (winding machine). The driving device 24 is composed of, for example, a three-phase AC motor, and the three-phase AC power modulated by the inverter 402 is supplied.

  The elevator 20 is provided with various sensors. These sensors include, for example, an encoder 404, current sensors 406u and 406v, a gate switch 408, and a landing sensor 400.

  The encoder 404 is attached to the drive 24 and detects the rotation angle of the drive 24. The current sensors 406 u and 406 v respectively detect the u-phase current and the v-phase current supplied from the inverter 402 to the drive device 24.

  The gate switch 408 and the landing sensor 400 are provided in the cage 22. The gate switch 408 detects the open / close state of the door 26 on the side of the car 22. The landing sensor 400 detects whether the basket 22 has landed on a predetermined floor. The landing sensor 400 is, for example, an optical type, and the light emitting unit and the light receiving unit are disposed to face each other at an interval. A rail is installed in the height direction in the hoistway, and a landing position plate (not shown) is provided on each floor. The landing sensor 400 also moves up and down as the cage 22 moves up and down, and the landing position plate gets in between the light emitting portion and the light receiving portion of the landing sensor 400 at a predetermined position to block light reception to the light receiving portion. Thereby, the relative position of the cage 22 to the floor 12 (see FIG. 1) is grasped, and based on this, the floor 27 of the cage 22 and the floor 12 are aligned, and the door 26 is opened and closed. For example, when the light emitting unit and the light shielding unit are blocked by the landing position plate, the landing sensor 400 applies a predetermined ON voltage to the signal wiring 414 as an ON signal.

  The cage 22 is provided with a cable 410, one end of which is connected to various electric devices provided in the cage 22, and the other end is connected to the interface board 416 of the control panel 210. The cable 410 is a wire bundle including the feed wire 412 and the signal wire 414. The feed wiring 412 is connected to the gate switch 408, the landing sensor 400, and the electric devices provided in the cage 22 to supply power to these devices. The signal wiring 414 transmits, to the control panel 210, the gate switch 408, the landing sensor 400, the operation signal of the car operation panel, the video signal of the security camera, and the like.

  The interface board 416 receives signals from the cables 410 and various electric devices (hardware) of the elevator 20, transmits the signals to the processing board 417 of the control panel 210, and supplies power to the various electric devices. The interface board 416 includes a plurality of input terminals 418A to 418E and output terminals 418F and 418G. These terminals are also called contact receivers. Although only seven input / output terminals are shown in the example of FIG. 9 to simplify the drawing, the number of input terminals and output terminals is not limited to this.

  The connection terminals 420A to 420E of the current sensors 406u and 406v, the encoder 404, the landing sensor 400, and the gate switch 408 are connected to the input terminals 418A to 418E in that order. The output terminals 418F and 418G are connected to the inverter 402 and the connection terminals 420F and 420G of the feed wiring 412 of the cable 410 in that order.

  In the failure cause narrowing-down flow described below, when a so-called on failure continues to be output from the electric device in the elevator 20, whether the failure is the device itself or the input / output terminal 418A ~ It is determined whether it is due to a connection failure of the 418G and the connection terminals 420A to 420G.

  In the present embodiment, the remote recovery device 300 executes the narrowing-down flow of the cause of the failure. Here, as will be described later, the narrowing-down flow of the cause of failure is basically executed when remote recovery is difficult. From this, if limited to the execution of the failure cause narrowing flow, the remote recovery device 300 can be replaced with a remote control device that causes the elevator 20 to perform a failure handling operation. Also, the remote recovery system 100 can be replaced with a remote monitoring system.

  FIG. 10 shows an example in which a functional block (functional unit) of the narrowing-down flow cause is added to the remote recovery processing in FIG. The information processing apparatus 360 includes functional blocks that execute narrowing down of the cause of failure, transmission of the cause of failure, and arrangement of replacement parts as part of the remote recovery process.

  In the maintenance database 370, operation history data 379 is stored. As the operation history data 379, data received by the elevator control device 200 from various devices of the elevator 20 is stored in time series and for each device.

  FIG. 11 illustrates a flow of narrowing down the cause of the failure. Starting from step S103 (failure code reception) in FIG. 5, this flow starts from step S105 (notifies remote start to remote monitoring center) as one end point, and step S124 (notifies remote restoration not available to remote monitoring center). It is one end point. Since the flow from step S104 to step S105 has been described above, the description will be omitted below.

  Prior to the description of the flow of FIG. 11, a failure mode generated on the elevator side will be described with reference to FIG. The control panel 210 (elevator controller 200) receives signals from various devices included in the elevator 20 via the interface board 416. The control panel 210 transmits various signals to the remote recovery apparatus 300 as necessary without transmitting a failure signal when the various signals are respectively within the range of a predetermined normal value. In addition, when these various signals are within a predetermined modulation range that deviates from the normal value, although fault signals are not sent, remote identification of the signals included in the modulation range and the devices that output them is performed Send to device 300. Furthermore, when various signals are included in an abnormal range deviating from the normal range further than the modulation range, the control panel 210 determines that the device failure is detected, and the control board 210 includes a failure signal including a failure code identifying the failed device; A signal or the like included in the abnormal range is transmitted to the remote recovery device 300.

  For example, in the case of the landing sensor 400, when the reception period of the on signal (on voltage) continues for a predetermined period (for example, 5 minutes) or more, the control panel 210 (elevator control device 200) receives the communication device 250 and the communication network 30. And sends a failure signal to the remote recovery device 300. The remote recovery device 300 transmits a failure signal to the information processing device 360 via the communication device 320. For example, the failure signal includes a failure code “0010” indicating a failure of the landing sensor 400.

  As described above, the failure signal does not include information on the specific cause of the failure (content of the failure), and basically includes only the failed device information. The information processing apparatus 360 receives the failure signal and narrows down the cause of the failure.

  For example, as a failure cause of the landing sensor 400, there are an off failure (failure cause 1) and an on failure (failure cause 2). The off failure is a failure mode in which the control board 210 can not receive the on signal (the on voltage is not applied to the input terminal 418 D) even when the landing position plate enters between the light emitting unit and the light receiving unit. is there. In contrast to the on failure, the on signal continues to be output regardless of whether the landing position plate is inserted between the light emitting unit and the light receiving unit or removed, contrary to the off failure (input terminal (input terminal 418D) continues to apply the on voltage).

  Further, as a detailed cause of the ON failure, a failure of the landing sensor 400 itself which is a broken device, for example, sensitivity abnormality of the light receiving unit (failure cause 2-1) and a control panel 210 (elevator control) Connection failure with the input terminal 418D of the connection terminal 420D connected to the device) (failure cause 2-2). The information processing apparatus 360 narrows down the failure cause of the landing sensor 400 according to the narrowing-down flow of the failure cause shown in FIG.

  When the information processing device 360 receives the failure signal including the failure code “0010” (arrival sensor failure) in response to step S103 (failure code reception), whether the received failure is a remote recovery operable failure or not It determines (S104).

Specifically, as described above, referring to inspection history data 372, maintenance operation history data 373, remote inspection history data 374, modulation history data 375, repair work history data 376, and failure history data 377, the following (a ) To (f).
(A) The elevator 20 has been instructed to adjust in recent inspection.
(B) The elevator 20 has a maintenance plan recently or on the same day, and the possibility of adjustment error is predicted.
(C) The elevator 20 has a diagnosis result of abnormality in the remote inspection.
(D) Recently, the elevator 20 has generated modulation.
(E) The elevator 20 has recently been subjected to repair work.
(F) The elevator 20 has recently issued a failure signal with the same failure code "0010".

  And when it corresponds to any one or more of said (a)-(f), it is better for information processing apparatus 360 to dispatch engineer 350 to building 10 rather than restoration by remote restoration system 100. It judges that it is NO and judges it as step S104 of FIG.

  Moreover, in addition to the above (a) to (f), remote recovery is difficult even when off failure and on failure requiring device replacement or terminal replacement are suspected (a remote replacement operation can not be performed From the), it is determined that it is better to dispatch the engineer to the building 10, it is determined NO in step S104 of FIG.

  In the determination of the off failure / on failure, the information processing apparatus 360 receives an input signal from the faulty device (the landing sensor 400) to the control board 210 and a device other than the faulty device from the device included in the elevator 20 to the control board 210. Refer to the input signal. For example, the information processing apparatus 360 acquires the received data from all the devices received by the control panel 210 in a period of about 10 minutes before and after the failure signal transmission time point to the control panel 210 via the remote monitoring center 310. Alternatively, the past data received from all the devices of the elevator 20 is acquired from the operation history data 379 of the maintenance database 370. Next, the information processing device 360 analyzes these received data.

  For example, after the on signal from the landing sensor 400 is switched to the off state, the gate switch 408 is switched from the off state (gate open signal) to the on signal (gate close signal). Consider the case where the rotational position has changed from a constant state to a fluctuating state. In this case, since the landing sensor 400 is switched to the off state before the stopped cage 22 starts to move, it is considered to correspond to the off failure (fault cause 1).

  Further, for example, consider a case where sine waves are received from the current sensors 406 u and 406 v and the rotational position change of the driving device 24 is received from the encoder 404 during the period in which the landing sensor 400 continues the output of the on signal. In this case, since it is considered that the on signal is output from the landing sensor 400 even after the cage 22 leaves the floor 12, it is considered as an on failure (failure cause 2).

  When it is determined in step S104 that the off failure (fault cause 1) or the on failure (fault cause 2) described above is determined, it is determined that the engineer should be dispatched to the building 10, and NO in step S104 of FIG. It is judged. In the next step S1002, it is determined whether the failure cause of the failed device is the ON failure (failure cause 2). If it is not on failure, the process directly proceeds to step S124 (notice of remote recovery impossible notification to the remote monitoring center).

  When the failure cause of the failed device is the on failure, the information processing apparatus 360 further narrows down the cause of the failure. Specifically, the cause of the ON failure is a failure of the landing sensor 400 itself (failure cause 2-1), or a connection failure between the connection terminal 420D and the input terminal 418D (failure cause 2-2) Narrow down what is.

  As will be described later, since power supply to some of the electric devices in the cage 22 is temporarily interrupted in narrowing down the causes of the failure, the failure cause is caused after the evacuation operation for evacuating the passengers in the cage 22 is performed. You may narrow down. For example, the elevator control device 200 makes an emergency stop on the nearest floor, opens the doors 13 and 26, and outputs a message prompting the car 22 to leave the car 22.

  The information processing device 360 transmits a power shutoff command to the malfunctioning device (the landing sensor 400) to the elevator control device 200 (S1004). The control panel 210 of the elevator control device 200 interrupts the power supply to the output terminal 418G which is a feeding terminal. During this time, signal information of all devices (a specific device may be selected) is transmitted from the elevator control device 200 to the information processing device 360.

  After interrupting the power supply, the information processing device 360 monitors the signal of the input terminal 418D, and determines whether the input signal from the terminal is 0 for a predetermined period (for example, 5 minutes) (S1006). When there is no input of an ON signal from the landing sensor 400 to the input terminal 418D for a predetermined period, the information processing apparatus 360 determines that the landing sensor 400 itself, which is a malfunctioning device, has a failure (S1008).

  On the other hand, when the ON signal is detected from the input terminal 418D within the predetermined period after the power supply interruption, the information processing device 360 determines that the connection terminal 420D of the landing sensor 400 and the input terminal 418D are defective (S1010). ).

  Next, the information processing device 360 transmits a recovery command including failure information to the remote monitoring center 310 (S1012). Specifically, the identification information of the elevator 20, the failure device, the details of the failure cause, and the details of the failure cause are included in the failure information. For example, information such as “broken device: landing sensor, failure cause: ON failure, details of failure cause: connection failure” is transmitted from the information processing device 360 to the remote monitoring center 310.

  Furthermore, the information processing device 360 transmits a procurement command of replacement parts of at least one of the connection terminal 420 and the input terminal 418 determined to be defective or the malfunctioning device (landing sensor 400) determined to be defective to the remote monitoring center 310 ( S1014). Thus, the exchange work can be performed promptly.

  It is transmitted to the service center 340 via the communication network 35 as failure information (recovery command) sent to the remote monitoring center 310 and a procurement command. The service center 340 is a management device that manages a worker who performs restoration of the elevator 20. After that, the remote recovery impossible notification is transmitted to the remote monitoring center 310 (S124).

  In the embodiment described above, the failure of the landing sensor 400 is taken as an example, but the failure device is not limited to this. In short, if it is a device that includes ON failure as the failure cause, it can be determined that the failure cause is ON failure from the comparison with the signals of other devices, and if the device has terminals connected to the interface board 416, The narrowing-down flow of the cause of failure according to the present embodiment can be executed on the device. For example, with regard to a sensor whose output signal is a binary value of on / off, it is possible to execute the narrowing-down flow of the failure cause according to the embodiment.

  The present invention is not limited to the embodiments described above, but includes all the changes and modifications without departing from the technical scope or the essence of the present invention defined by the claims. .

DESCRIPTION OF SYMBOLS 10 buildings, 11 hoistways, 12 floors, 13 doors, 20 elevators, 22 cages, 23 wires, 24 drives, 25 weights, 26 doors, 27 floors, 30 communication networks, 35 communication networks, 100 remote recovery systems , 200 elevator control device, 210 control panel, 250 communication device, 300 remote recovery device (remote control device), 310 remote monitoring center, 320 communication device, 330 monitoring panel, 331 display, 332 switch, 333 telephone, 334 surveillance person, 340 service center, 350 engineer, 360 information processor, 370 maintenance database, 371 elevator specification data, 372 inspection history data, 373 maintenance operation history data, 374 remote inspection history data, 375 modulation history data, 376 repair work history data, 3 7 fault history data, 378 fault cause classified data, 379 operation history data, 380 recovery diagnosis database, 400 landing sensor, 402 inverter, 404 encoder, 406u, 406v current sensor, 408 gate switch, 410 cable, 412 feed wiring, 414 Signal wiring, 416 interface board, 417 processing board, 418A to E input terminals, 418F, 418G output terminals, 420A to 420G connection terminals.

Claims (4)

A remote monitoring system for elevators,
An elevator control device that performs drive control of the elevator;
A remote control device that communicates with the elevator control device and causes the elevator to perform a failure handling operation;
The elevator control device, upon detecting a failure of equipment included in the elevator, transmits a failure signal including a failure code identifying the failed device;
The remote control device is
When the cause of the failure of the failed device is an on failure in which the on signal continues to be output, a power shutoff command for the failed device is transmitted;
And monitoring an input signal from the faulty device to the elevator control device after transmission of the power shutoff command, and when the on signal is detected, extending from the faulty device and connected to the elevator control device Connection failure between the connection terminal and the input terminal of the elevator control device, which is the connection destination ,
Monitoring an input signal from the faulty device to the elevator control apparatus after transmission of the power shutoff command, and determining that the faulty device itself is faulty when the on signal is not detected for a predetermined period;
Elevator remote monitoring system. The elevator remote monitoring system according to claim 1 ,
The remote control device transmits the identification code of the elevator and a recovery command including the malfunctioning device to be recovered to the management device that manages the worker who performs recovery of the elevator, and also determines the connection failure. Transmitting a procurement command of at least one of the connection terminal and the input terminal, or a replacement part of the faulty device determined to be faulty;
Elevator remote monitoring system. A remote monitoring system for elevators,
An elevator control device that performs drive control of the elevator;
A remote control device that communicates with the elevator control device and causes the elevator to perform a failure handling operation;
The elevator control device, upon detecting a failure of equipment included in the elevator, transmits a failure signal including a failure code identifying the failed device;
The remote control device is
When the failure signal is received, the input signal to the elevator control device from the failed device and the input signal to the elevator control device from devices included in the elevator other than the failed device are referred to. Determine whether the failure cause of the failed device is the on failure where the on signal continues to be output,
If the failure cause of the failed device is the on failure, a power shutoff command for the failed device is transmitted;
And monitoring an input signal from the faulty device to the elevator control device after transmission of the power shutoff command, and when the on signal is detected, extending from the faulty device and connected to the elevator control device That the connection between the connection terminal and the input terminal of the elevator control device, which is the connection destination, is defective.
Elevator remote monitoring system. The elevator remote monitoring system according to claim 1 or 2 , wherein
When the remote control device receives the failure signal, the remote control device receives an input signal from the failed device to the elevator control device, and an input signal from an equipment included in the elevator other than the failed device to the elevator control device. To determine whether the failure cause of the failed device is the on failure with reference to
Elevator remote monitoring system.

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