JP2007070102A - Diagnostic device for elevator door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a diagnostic device for an elevator door, having a means for determining that a door load state is an initial value with respect each of a plurality of sections from a closing end to an opening end of the door to determine which section from the closing end to the opening end of the door causes a door traveling abnormality. <P>SOLUTION: This diagnostic device for the elevator comprises a load detecting device 8 detecting load amount of a drive motor 5 for opening/closing the door 2; a storing device 42 storing a standard value of the door motor load amount in the plurality of sections from the opening end to the closing end of the door 2; a comparing and calculating means 41 calculating the load amount detected by the load detecting device 8 and a deviation value of the standard value stored in the storing device 42; a storing means 92 storing deviation values from the standard values in the plurality of sections from the closing end to the opening end of the door 2 as initial values; and a comparing and determining means 91 determining whether or not the plurality of deviations stored in the storing means 92 exceed a fixed value; and a display device A displaying the determination result of the comparing and determining means 91. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an elevator door diagnostic apparatus that checks a load state for each of a plurality of sections from a closed end to an open end of a door when the door of an elevator car is opened and closed.

  In general, an elevator has doors in a car and a landing, and when the car is landed, a car engaging device and a door engaging device in the landing are engaged to drive the car door. The door of the car and the hall are configured to open and close in conjunction with each other.

  This elevator door inspection work is usually performed by experienced professional maintenance personnel, and it is necessary to visually check the door operation status when opening and closing the door on each floor and to check for abnormal noise. Was done by.

In addition, as an apparatus for automatically inspecting an elevator door, a device that measures a door current and detects a door abnormality when an integrated value of a deviation between the measured value and a standard value exceeds a predetermined value is proposed. (See Patent Document 1).
JP-A-11-278777 (paragraphs 0006 to 0029, FIGS. 1 to 6)

  According to the above prior art, in order to see the load state of the door, the current value of the door motor that opens and closes the door between the closed end and the open end when the door is opened and closed is integrated and compared with a reference value. It was impossible to determine which part of the running abnormality from the end to the open end was abnormal.

  The present invention has been made in view of the above inconveniences, and its purpose is to provide a means for determining the door load state as an initial value for each of a plurality of sections from the closed end to the open end of the door. It is to determine at which part up to the open end the door running abnormality has occurred.

  In order to achieve the above object, the present invention provides a door motor that opens and closes an elevator door, a load detection means that detects a load amount of the door motor based on a current flowing through the door motor or a torque of the door motor, and the door from the closed end to the open end. A storage means for storing a standard value of the door motor load amount in a plurality of sections, a comparison calculation means for calculating a deviation value by comparing a detection value detected by the load detection means and a standard value stored in the storage means; Storage means for storing a deviation value from a standard value in a plurality of sections from the closed end to the open end of the door as an initial value, and initial values in the plurality of sections stored in the storage means and the latest value calculated by the comparison operation means Comparison determination means for comparing the deviation values and determining whether the deviation between the two is greater than a certain value, and a display for displaying the determination result of the comparison determination means Characterized by being configured with and.

  According to the present invention, since it is possible to determine in which part from the closed end to the open end of the door the running abnormality has occurred, it is possible to easily estimate the adjustment location when adjusting the door, and to adjust the door adjustment time. It leads to shortening.

  Hereinafter, an elevator door diagnostic apparatus will be described with reference to the drawings.

  FIG. 1 is a block diagram showing the configuration of an elevator door diagnostic apparatus. In addition, in each figure, the same code | symbol shows the same or equivalent part. In FIG. 1, 1 is an elevator car, 2 is a door provided on the car, 3 is a control panel for controlling the operation of the elevator, 4 is a door control microcomputer for controlling the operation of the door, and 5 is a drive for opening and closing the door 2. Motor 6, a door closing switch for detecting that the door 2 is fully closed, 7 a door opening switch for detecting that the door 2 is fully open, and 8 a door opening / closing drive motor. A load detecting device 9 for detecting the load amount of the vehicle, 9 is a monitoring terminal connected to the control panel 3 for monitoring and diagnosing the state of the elevator and capable of running the elevator via the control panel 3, and A is a monitoring device A display device capable of displaying an elevator state or transmitting a command to the elevator, B is a telephone line, and C is a monitoring center connected to a plurality of monitoring terminals 9 via the telephone line B. In the load detection device for detecting the load amount of the door opening / closing drive motor 8, the load amount is detected by a current flowing through the door motor or a door motor torque.

  Further, in the figure, the door control microcomputer 4 has a processing device 41, a ROM 42, a RAM 43, and an input / output device 44, and the standard value of the door motor load amount in a plurality of sections from the open end to the closed end of the door 2 is obtained. The storage means for storing is performed by the ROM 42, the detection value detected by the load detection device 8 is compared with the standard value stored in the ROM 42, and the calculation of the deviation values of both in a plurality of sections from the closed end to the open end of the door 2 is performed. Performed by the processing device 41. The door control microcomputer 4 is connected to the control panel 3 via the input / output device 44.

  In the figure, the monitoring terminal 9 includes a processing device 91, a ROM 92, a RAM 93, and an input / output device 94. The deviation value calculated by the processing device 41 in the door control microcomputer 4 is the input / output device 44. The initial value can be stored in the ROM 92 through the elevator control panel 3, the input device 94 in the monitoring terminal 9, and the processing device 91. Further, the processor 91 (corresponding to a comparison / determination unit) performs comparison and determination by comparing the initial value stored in the ROM 92 with the latest deviation value and determining whether the deviation value is equal to or greater than a certain value.

  In the figure, the monitoring center C includes a processing device C1, a ROMC2, a RAMC3, and an input / output device C4.

  Next, the operation of the elevator door diagnostic apparatus will be described with reference to the drawings.

  FIG. 2 is a flowchart showing a processing procedure of the entire elevator door diagnostic apparatus. First, in step 100, the monitoring terminal 9 determines whether there is a door motor load state measurement start command from the display device A. If there is a command, the process proceeds to step 101. Here, the measurement start command for the door motor load state is made by operating the display device A by an inspector or a maintenance worker who inspects the installation accuracy of the elevator. Next, in step 101, the monitoring terminal 9 receives a signal from the control panel 3 via the input / output device 94, and determines whether the elevator state is normal. If there is no car call or hall call in the elevator for more than 3 minutes, the elevator is determined to be in a normal state and the process proceeds to step 102. Next, in step 102, the monitoring terminal 9 determines whether the position of the elevator car 1 is on the lowest floor. If the car 1 is not on the lowest floor, proceed to 103, and if it is on the lowest floor, proceed to Step 104. Next, at step 103, the monitoring terminal 9 issues a command to the control panel 3, creates a car call on the lowest floor, causes it to travel to the lowest floor, and proceeds to step 104. Next, in step 104, a command is sent from the monitoring terminal 9 to the control panel 3 to open and close the door, and the load amount of the door motor at that time is diagnosed. Details of the processing at this time will be described later with reference to FIG. Next, in step 105, the monitoring terminal 9 issues a command to the control panel 3, creates a car call on the floor that is above the current position of the car 1 and can be stopped, makes it run, and proceeds to step 106. Next, in step 106, a command is sent from the monitoring terminal 9 to the control panel 3, the door is opened and closed, the load amount of the door motor at that time is diagnosed, and the routine proceeds to step 107. Next, in step 107, the monitoring terminal 9 determines whether the current position of the car 1 is on the top floor. If it is on the top floor, the process proceeds to step 108. If it is not on the top floor, the process returns to step 105, and steps 105 and 106 are repeated until the position of the car 1 reaches the top floor. Next, at step 108, the monitoring terminal 9 issues a command to the control panel 3 to open and close the door, diagnose the door motor load at that time, and proceed to step 109. Next, in step 109, the monitoring terminal 9 transmits the results measured in steps 104, 106 and 108 to the display device A for display, or transmits the door running abnormality to the monitoring center C via the telephone line B, Notify maintenance personnel C.

  This completes the processing of the entire elevator door diagnostic apparatus.

  Next, processing during door diagnosis in the operation of the elevator door diagnosis apparatus will be described.

  FIG. 3 is a flowchart showing a processing procedure at the time of door diagnosis in the processing procedure of the elevator door diagnostic apparatus of FIG. First, in step 200, it is determined whether the door open end switch 7 is ON. If it is ON, the process proceeds to step 201. If it is OFF, the process proceeds to 204. Next, when the door opening end switch 7 is turned off in step 201, that is, when the door starts to close, the routine proceeds to step 202. Until the door starts to close, the process of step 202 is looped. Next, in step 202, the load detection device 8 starts detecting the load amount of the door motor. Note that the processing in step 202 loops until the door closing switch 6 is turned on in step 203, that is, until the door is fully closed. If the door closing switch is turned on in step 203, the process proceeds to step 207. Next, at step 204, when the door closing switch 6 is turned off, that is, when the door starts to open, the routine proceeds to step 205. Until the door starts to open, the process of step 205 is looped. Next, in step 205, the load detection device 8 starts detecting the load amount of the door motor. Note that the processing in step 205 loops until the door open end switch 7 is turned on in step 206, that is, the door is fully opened. If the door open end switch is turned on in step 206, the process proceeds to step 207. Next, at step 207, that is, when the opening / closing of the door is completed, the detection of the load amount of the door motor is terminated and transmitted to the door control microcomputer 4. Thereafter, in step 208, the door control microcomputer 4 takes out the standard value of the load amount of the door motor in a plurality of sections from the closed end to the open end of the door 2 stored in the ROM. Next, in step 209, the door control microcomputer 4 compares the detection value detected in step 207 with the standard value extracted in step 208, and calculates a deviation value in a plurality of sections from the closed end to the open end of both doors 2. . Thereafter, in step 210, deviation values in a plurality of sections from the closed end to the open end of the door 2 calculated in step 209 are transmitted from the door control microcomputer 4 to the monitoring terminal 9 via the control panel 3. Thereafter, in step 211, the monitoring terminal 9 determines whether or not the initial value is stored in the ROM 92. If the initial value of the door diagnosis execution floor is stored, the process proceeds to step 212. Here, if the initial value is not stored, the process proceeds to step 213, the deviation value transmitted from the door control microcomputer in step 210 is stored as the initial value, and the process ends. Next, in step 212, the processing device 91 in the monitoring terminal 9 compares the initial value stored in advance in the ROM 92 with the deviation value transmitted from the door control microcomputer in step 210.

  FIG. 4 is a comparative example of the initial value and detected value of the door motor load detected by the elevator door diagnostic apparatus of FIG. For example, as shown in FIG. 4, when the deviation between the detected value and the standard value in a plurality of sections from the closed end to the open end of the door 2 is greater than a predetermined value in the section of the steady running mode, It is determined that the door travel is abnormal in the “steady travel mode”. Here, it is conceivable that the door running abnormality is caused by wear of a rubber door or a resin attached between the hatch door used as the smoke shielding material of the door and the three-sided frame / sill. In this case, there is no problem in the opening / closing function of the door, but since the gap between the hatch door and the three-sided frame / sill increases, the smoke shielding performance is deteriorated, so that the smoke shielding material needs to be replaced.

  The above is the process of the elevator door diagnostic apparatus.

  The elevator door diagnosis apparatus described so far is a tool performed by an inspector or maintenance personnel at the time of installation and maintenance inspection. Here, processing when the monitoring terminal 9 automatically performs door diagnosis will be described.

  FIG. 5 is a flowchart in the procedure when the monitoring terminal 9 performs normal monitoring.

  First, in step 300, the monitoring terminal 9 receives a signal from the control panel 3, determines whether the car 1 has arrived at the destination floor after traveling by car call or hall call. move on. Next, in Step 301, when the car 1 travels by car call or hall call and arrives at the destination floor, the door is automatically opened and closed. Therefore, the load amount of the door motor at that time is diagnosed, and the step after the diagnosis is completed. Proceed to 302. The details of the processing at this time correspond to the processing at the time of door diagnosis using FIG. 3 described above. Next, in step 302, the monitoring terminal 9 determines whether or not the deviation between the initial value and the detected value is equal to or greater than a certain value in step 302. If no door running abnormality is detected, the process returns to step 300. Next, in step 303, the monitoring terminal 9 reports to the monitoring center C via the telephone line that the door running is abnormal. The monitoring center that has received the report notifies the local maintenance staff of the diagnosis result and responds.

It is a block diagram which shows the structure of the diagnostic apparatus of an elevator door. It is a flowchart which shows the process sequence of the whole diagnostic apparatus of an elevator door. It is a flowchart which shows the process sequence at the time of the door diagnosis of the diagnostic apparatus of an elevator door. It is a comparative example of the initial value and detected value of the door motor load amount detected in FIG. It is a flowchart which shows the process sequence of the diagnostic apparatus of the elevator door at the time of normal monitoring.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car 2 Door 3 Control panel 4 Door control microcomputer 5 Door motor 6 Closed end switch 7 Open end switch 8 Load detection device 9 Monitoring terminal A Display device B Telephone line C Monitoring center

Claims (2)

In the elevator door diagnostic device for diagnosing the opening / closing operation of the elevator door,
Load detection means for detecting the load amount of the door motor for driving the elevator door, storage means for storing a standard value of the door motor load amount in a plurality of sections from the open end to the closed end of the door, and detection detected by the load detection means A comparison operation means for calculating a deviation value by comparing a value with a standard value stored in the storage means, and a memory for storing a deviation value between a standard value in a plurality of sections from the closed end to the open end of the door as an initial value Means for comparing the initial value in the plurality of sections stored in the storage means and the latest deviation value calculated by the comparison calculating means, and for determining whether the deviation between the two is a certain value or more, An elevator door diagnostic apparatus comprising a display means or a notification means for displaying a judgment result of the comparison judgment means. Elevator door diagnostic device for diagnosing elevator door opening / closing operation, a monitoring terminal connected to a control panel for controlling elevator equipment and diagnosing the elevator, and a monitoring center connected to a plurality of the monitoring terminals via communication lines In an elevator with
Detected by load detecting means for detecting a door motor load amount for driving the elevator door, storage means for storing a standard value of the door motor load amount in a plurality of sections from the closed end to the open end of the door, and the load detecting means Comparison operation means for comparing the detected value with a standard value stored in the storage means to calculate a deviation value, and a deviation value between a standard value in a plurality of sections from the closed end to the open end of the door is stored as an initial value. A storage unit, a comparison determination unit that compares an initial value in a plurality of sections stored in the storage unit with a latest deviation value calculated by the comparison calculation unit, and determines whether the deviation between the two is equal to or greater than a certain value; An elevator door diagnostic apparatus comprising: a reporting unit configured to report the determination result of the comparison determination unit to the monitoring center via a communication line.

Images