JP2021031213A - Monitoring system of elevator car internal condition - Google Patents

Abstract

To provide a monitoring system of an elevator car internal condition capable of detecting in detail a car internal condition such as presence or absence of staying people.SOLUTION: One aspect of the present invention comprises an acceleration detection device 20 attached to the door of a car 2 and to detect each of the acceleration in the door opening/closing direction of the car 2 and of the acceleration in the traveling direction of the car 2, and a car condition detection device 30. The car condition detection device 30 comprises a door opening/closing detection unit 51 to detect an opening/closing operation of the door of the car 2 from the information detected by the acceleration detection device 20, a car traveling detection unit 52 to detect the high speed travel of the car 2 from the information detected by the acceleration detection device 20, and a car condition determination unit 54 to determine the internal condition of the car 2 based on the result detected by the door opening/closing detection unit 51 and on the result detected by the car traveling detection unit 52.SELECTED DRAWING: Figure 3

Description

The present invention relates to an elevator car condition monitoring system.

Conventionally, the presence or absence of passengers in the car has been detected by a load sensor installed in the car. In addition, the load inside the car can be estimated by measuring the load of the hoist (motor) while the car is running. However, in a variable speed elevator whose traveling speed is variable depending on the load in the car, it is not possible to estimate the accurate load from the load.

As a method of detecting the load in the car of the variable speed elevator, the torque command value at the predetermined load of the elevator is first recorded as the initial value, and then the ride is performed from the deviation between the torque command value and the initial value during the subsequent operation. A method for calculating the load capacity in the car has been proposed (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2012-41100

In the above-mentioned conventional method, the load in the car is calculated from the deviation between the torque command value and the initial value during operation to control the running speed, so that the riding comfort when the running speed is changed due to erroneous detection of the load is detected. Prevents failures such as deterioration and sudden stop. However, no consideration is given to the case where a sudden stop occurs for some reason such as an earthquake, and there is no means for detecting the presence or absence of a resident or the state in the car such as confinement.

From the above situation, it has been desired to detect the condition inside the car in detail, such as the presence or absence of a resident.

In order to solve the above problems, one aspect of the present invention is the inside of an elevator car that determines the state in the car of an elevator that travels at a rated speed when there is no load and travels at a higher speed than the rated running when there is a load. It is a state monitoring system, and includes an acceleration detection device, which is attached to the door of the car and detects acceleration in the opening / closing direction of the door of the car and acceleration in the traveling direction of the car, and a car state detection device. The car state detection device is a door open / close detection unit that detects the opening / closing operation of the car door from the information detected by the acceleration detection device, and a car travel detection unit that detects high-speed running of the car from the information detected by the acceleration detection device. A car state determination unit for determining the state inside the car is provided based on the detection result of the door open / close detection unit and the detection result of the car travel detection unit.

According to at least one aspect of the present invention, it is possible to detect in detail the state inside the car such as the confinement of passengers based on the detection result of the acceleration detection device having two or more axes installed on the car door.
Issues, configurations and effects other than those described above will be clarified by the description of the following embodiments.

It is an overall block diagram which shows the outline of the elevator which concerns on one Embodiment of this invention. It is a schematic diagram which shows the attachment of the acceleration detection apparatus which concerns on one Embodiment of this invention. It is a block diagram which shows the function of each apparatus which comprises the car inside condition monitoring system of the elevator which concerns on one Embodiment of this invention. It is a block diagram which shows the hardware configuration example of the computing apparatus provided in each apparatus of the car in-car condition monitoring system which concerns on one Embodiment of this invention. It is a flowchart which shows the operation of the car state detection apparatus of the car in-car state monitoring system which concerns on one Embodiment of this invention. It is a figure which shows an example of the car speed displacement of the elevator which concerns on one Embodiment of this invention.

Hereinafter, examples of embodiments for carrying out the present invention (hereinafter, referred to as “embodiments”) will be described with reference to the accompanying drawings. In the present specification and the accompanying drawings, components having substantially the same function or configuration are designated by the same reference numerals, and duplicate description will be omitted.

[Elevator]
FIG. 1 is an overall configuration diagram showing an outline of an elevator 10 according to an embodiment. In the present embodiment, the variable speed elevator is applied to the elevator 10. In FIG. 1, the first direction (X-axis direction) is the opening / closing direction of the car door 6, the second direction (Y-axis direction) is the elevating direction of the car 2, and the third direction (Z-axis direction) is. The direction is perpendicular to the first direction and the second direction.
FIG. 2 is a schematic view showing the attachment of the acceleration detection device 20 according to the embodiment. FIG. 2 shows a view of the landing side from the inside of the car 2.

As shown in FIG. 1, the elevator 10 includes a car 2 that moves up and down the hoistway 1, a main rope 4 that connects the car 2 and the counterweight 3, and a hoisting machine 5 on which the main rope 4 is wound. Have. When the hoisting machine 5 is driven, the car 2 and the counterweight 3 move up and down in a sliding manner via the main rope 4. The car 2 is provided with a car door 6, and passengers can get on and off the car 2 by opening and closing the hatch door 7 on the landing side in conjunction with the operation of the car door 6. As shown in FIG. 2, an acceleration detection device 20 is installed on the car door 6.

The elevator 10, which is a variable speed elevator, changes the traveling speed of the car 2 depending on the presence or absence of a load in the car 2. For example, when there is no load in the car 2, the car 2 runs at the rated speed. Further, when there is a load in the car 2, the car 2 runs at a speed higher than the rated running speed (high-speed running). Examples of the method of detecting the load include a method of installing a load sensor under the floor of the car 2 to detect the load, a method of detecting a change in the load (torque) of the motor of the hoisting machine 5, and the like.

Further, a car state detecting device 30 is installed behind the ceiling of the car 30, and an external reporting device 60 is installed at a predetermined position of the hoistway 1. Details of the car state detection device 30, the external notification device 60, and the acceleration detection device 20 will be described later.

[Elevator car condition monitoring system]
Next, the in-car condition monitoring system of the elevator 10 according to the present embodiment will be described with reference to FIG.
FIG. 3 is a block diagram showing the functions of each device constituting the car interior condition monitoring system of the elevator 10. As shown in FIG. 3, the car interior condition monitoring system of the elevator 10 includes an acceleration detection device 20, a car state detection device 30, and an external notification device 60.

[Acceleration detector]
The acceleration detection device 20 measures the acceleration and transmits the measured value data. Next, the car state detection device 30 receives the measured value data transmitted from the acceleration detection device 20, records the measured value data and detects the state inside the car, and reports the detection result to the external reporting device 60 through the tail code 8. Send to. Then, the external notification device 60 receives the detection result transmitted from the car state detection device 30, determines the content of the notification based on the detection result, and transmits the content of the notification to the control center 70 through the public line N.

Subsequently, the acceleration detection device 20 will be described in detail.
The acceleration detection device 20 includes an X acceleration detection unit 21, an X acceleration transmission unit 22, a Y acceleration detection unit 23, and a Y acceleration transmission unit 24.

The X acceleration detection unit 21, which is an acceleration sensor in the X-axis direction, is installed in the car door 6 as shown in FIG. 2, and measures the acceleration in the opening / closing direction of the car door 6. Further, the acceleration data measured by the X acceleration detection unit 21 is transmitted to the X acceleration recording unit 41 by the X acceleration transmission unit 22. Similarly, the Y acceleration detection unit 23, which is an acceleration sensor in the Y-axis direction, measures the acceleration in the ascending / descending direction of the car 2. Further, the acceleration data measured by the Y acceleration detection unit 23 is transmitted to the Y acceleration recording unit 43 by the Y acceleration transmission unit 24.

[Car condition detector]
The car state detection device 30 will be described in detail.
The car state detection device 30 includes an acceleration recording unit 40 and a car state detection unit 50.

The acceleration recording unit 40 includes an X acceleration recording unit 41, an X acceleration transmission unit 42, a Y acceleration recording unit 43, and a Y acceleration transmission unit 44. The X acceleration recording unit 41 receives and records the measured value data (acceleration data) of the acceleration in the X-axis direction (opening / closing direction) transmitted from the acceleration detection device 20. The X acceleration transmission unit 42 transmits the acceleration data recorded in the X acceleration recording unit 41 to the car state detection unit 50. Similarly, the Y acceleration recording unit 43 receives and records the measurement value data (acceleration data) of the acceleration in the Y-axis direction (elevation direction) transmitted from the acceleration detection device 20. The Y acceleration transmission unit 44 transmits the acceleration data recorded in the Y acceleration recording unit 43 to the car state detection unit 50.

The car state detection unit 50 includes a door open / close detection unit 51, a car travel detection unit 52, an emergency stop detection unit 53, a car state determination unit 54, and a car state transmission unit 55.

The door open / close detection unit 51 detects the door open / close operation based on the measured value of the acceleration in the X-axis direction transmitted from the acceleration recording unit 40. The car traveling detection unit 52 detects the high-speed traveling of the car 2 based on the measured value of the acceleration in the Y-axis direction transmitted from the acceleration recording unit 40. The emergency stop detection unit 53 detects an emergency stop of the car 2 based on the measured value of the acceleration in the Y-axis direction transmitted from the acceleration recording unit 40. The car state determination unit 54 determines the state inside the car 2 based on the detection results of the door open / close detection unit 51, the car travel detection unit 52, and the emergency stop detection unit 53. The car state transmission unit 55 transmits the determination result of the car state determination unit 54 to the external notification device 60 via the tail code 8.

The car state determination unit 54 determines staying, confinement, unmanned stop, etc. as the state inside the car 2. In the present specification, "retention" is a state in which passengers are staying in the car 2 for some reason. For example, as a resident, a person who is stuck due to a sudden illness, a person who stays in the car 2 by himself, and the like are assumed. "Confinement" is a state in which passengers cannot get out of the car 2 due to an elevator failure or an earthquake.

[External reporting device]
The external reporting device 60 will be described in detail.
The external notification device 60 includes a notification content determination unit 61 and a notification content transmission unit 62.
The notification content determination unit 61 determines the notification content based on the determination result regarding the state in the car 2 transmitted from the car state detection unit 50. The notification content transmission unit 62 notifies the control center 70 of the notification content determined by the notification content determination unit 61 via the public line N.

[Hardware configuration of each device]
FIG. 4 is a block diagram showing a hardware configuration example of the computing device 90 included in each device of the car interior condition monitoring system. Each part in the calculation device 90 is selected according to the function and purpose of use of each device. Here, a hardware configuration example of the calculation device 90 of the car state detection device 30 and the external notification device 60 will be described. As the calculation device 90, for example, a personal computer can be used.

The computing device 90 includes a CPU (Central Processing Unit) 91, a ROM (Read Only Memory) 92, a RAM (Random Access Memory) 93, a non-volatile storage 96, and a communication interface 97. Each part in the arithmetic unit 90 is connected so as to be able to transmit and receive data to and from each other via the system bus.

The CPU 91, ROM 92, and RAM 93 form a control unit. This control unit is used as an example of a computer that controls the operation of each unit of the car state detection device 30 and the external notification device 60. The CPU 91 reads the program code of the software that realizes each function according to the present embodiment from the ROM 92 and executes it to control each part and perform various calculations. Although the CPU 91 is used as the arithmetic processing unit, other processors such as MPU (Micro Processing Unit) may be used.

The ROM 92 is used as an example of a non-volatile memory (recording medium), and the ROM 92 stores programs, data, and the like necessary for the CPU 91 to operate. The RAM 93 is used as an example of a volatile memory, and variables, parameters, and the like generated during arithmetic processing by the CPU 91 are temporarily stored in the RAM 93.

The non-volatile storage 96 is an example of a recording medium, and can store a program such as an OS (Operating System), parameters used when executing the program, data obtained by executing the program, and the like. is there. The non-volatile storage 96 may store a program executed by the CPU 91. As the non-volatile storage 96, a semiconductor memory, a hard disk, an SSD (Solid State Drive), a recording medium using magnetism or light, or the like is used. The program may be provided via a wired or wireless transmission medium such as a local area network (LAN), the Internet, or digital satellite broadcasting.

For the communication interface 97, for example, a NIC (Network Interface Card), a modem, or the like is used. The communication interface 97 is configured to be capable of transmitting and receiving various data to and from an external device via a communication network such as a LAN or the Internet to which terminals are connected, a dedicated line, or the like.

The computing device 90 installed in the control center 70 and the control room 80 can have the same configuration. For example, the control center 70 includes a control system server that collects data from a local elevator and remotely monitors and controls it online. Further, for example, in the management room 80, an observer monitors the elevator 10 in the building by a monitoring server. The management room 80 may be a security room with a security guard who guards the inside of the building.

However, the calculation device 90 installed in the control center 70 and the control room 80 may be provided with a display device 94 such as a liquid crystal display and an operation device 95 such as a mouse or keyboard. The display device 94 displays the GUI screen, the result of processing performed by the CPU 91, and the like, and the operation device 95 generates an input signal according to the user's operation and supplies it to the CPU 91. The user can input necessary information and instructions through the operation device 95 while checking the contents displayed on the display device 94.

Based on the detection result of the acceleration detection device 20 installed in the car door 6 of the elevator 10 having the above configuration, a series of steps for determining the state in the car 2 will be described with reference to FIGS. 5 and 6.

As a premise here, when first recording the acceleration of the car 2 as the initial value, the acceleration is set in the state of the loading rate of 0% (without load) and the loading rate of 50% (with load) in the car 2 respectively. Record. This embodiment performs mathematical processing from the car running detection unit 52 based on accelerations of 0% loading rate and 50% loading rate, and when the calculated speed becomes rated running and high-speed running as shown in FIG. The condition determination by the in-car condition monitoring system of the elevator 10 according to the above is applied. In the elevator 10, the rated running is always assumed when the loading rate is 0%. That is, when the loading rate is 0%, the car 2 moves at the rated speed not only when traveling to the destination floor designated by the passenger but also when traveling for the hall call. Generally, an elevator is designed so that the car 2 and the counterweight 3 are balanced when the load ratio is 50%, but the data to be registered in advance is not limited to the load ratio of 50%.

FIG. 6 shows an example of the car speed displacement of the elevator 10. The horizontal axis represents time and the vertical axis represents the running speed of the car. In Figure 6, 0% loading ratio (with load) 50% loading ratio than the running speed V _R of the time (no load) is faster traveling speed V _R of the time. _{If the traveling speed V H} with a load is faster than the traveling speed V _{R with} no load in the preliminary inspection, it can be determined that the elevator to be inspected is a variable speed elevator. Traveling speed V _R can be regarded as a threshold for determining whether a variable speed elevator.

[Operation of car status detector]
FIG. 5 is a flowchart showing the operation of the car condition detection device 30 of the in-car condition monitoring system.
First, the car traveling detection unit 52 of the car state detecting unit 50 detects the traveling state of the car 2 based on the measurement data of the acceleration in the Y-axis direction transmitted from the acceleration recording unit 40. Then, the car state determination unit 54 determines whether or not 3 minutes have passed without calling the elevator 10 based on the traveling state of the car 2 (S1). For example, the time to be measured is the elapsed time from the time when the car 2 lands. If the car 2 has not traveled for 3 minutes, the car state determination unit 54 determines that the elevator 10 has not been called for 3 minutes (unmanned or passengers are staying in the car 2) (S1). YES), the process proceeds to step S2. If it is confirmed that the car 2 is running within 3 minutes (NO in S1), the process returns to step S1.

Next, the door open / close detection unit 51 detects the open / close operation of the car door 6 based on the measurement data of the acceleration in the X-axis direction transmitted from the acceleration recording unit 40. Then, the car state determination unit 54 determines whether or not the car door 6 has an opening / closing operation (S2), and if the car door 6 has an opening / closing operation (YES in S2), the passengers from the stop floor of the car 2 Judges that he has boarded, and proceeds to step S10. On the other hand, if the car door 6 is not opened / closed (NO in S2), the car state determination unit 54 determines that the passengers have not boarded or disembarked and the elevator 10 has moved to the nominal floor by the passenger's hall call, and step S3. Move to.

Next, the car traveling detection unit 52 detects the traveling state of the car 2 based on the measurement data of the acceleration in the Y-axis direction transmitted from the acceleration recording unit 40. Then, the car state determination unit 54 determines whether or not the car 2 is traveling at high speed (that is, a load) based on the detection result of the car traveling detection unit 52 (S3).

When it is confirmed that the car 2 is traveling at high speed (YES in S3), the car state determination unit 54 is in a state where there are passengers in the car 2 and there is no opening / closing operation of the car door 6 in step S2. Since there is no boarding / alighting, it is determined that passengers are staying in the car 2, and the process proceeds to step S4. On the other hand, when the high-speed running of the car 2 is not confirmed (NO in S3), the car state determination unit 54 calls the hall because there are no passengers in the car 2 and no passengers get on and off in step S2. Therefore, it is determined that the inside of the car 2 is running unmanned, and the process proceeds to step S7.

Next, the emergency stop detection unit 53 detects an emergency stop of the car 2 based on the measurement data of the acceleration in the Y-axis direction transmitted from the acceleration recording unit 40. Then, the car state determination unit 54 determines whether or not the car 2 has an emergency stop based on the detection result of the emergency stop detection unit 53 (S4). When the emergency stop of the car 2 is confirmed (YES in S4), the car state determination unit 54 means that the car 2 is traveling at high speed in step S3, so that passengers stay in the car 2. Since there is a high possibility that the vehicle has been stopped, it is determined that an emergency stop in the stagnant state has occurred, and the process proceeds to step S5. On the other hand, if the emergency stop of the car 2 is not confirmed (NO in S4), the car state determination unit 54 determines that there is a high possibility that the normal operation is being performed in the stagnant state, and proceeds to step S6. To do.

Next, in the case of YES in step S4, the car state determination unit 54 causes an emergency stop after traveling at high speed (with a load in the car) in a state where the car door 6 has not been opened and closed (no passengers getting on and off) by step S4. Since it is known that this has occurred, it is determined that there is a high possibility that confinement in the stagnant state has occurred (S5). Then, the car state determination unit 54 transmits the determination result to the notification content determination unit 61 of the external notification device 60 by the car state transmission unit 55. The notification content determination unit 61 determines that the notification content is "confined in a stagnant state" based on the detection result from the car state detection unit 50, and the notification content transmission unit 62 issues the information via the public line N. Notify the control center 70 of the information issued by the information content determination unit 61.

Next, in the case of NO in step S4, the car state determination unit 54 has been traveling at high speed (with load in the car) in a state where the car door 6 has not been opened / closed (passengers do not get on and off) by step S4. Since it is known, it is determined that there is a high possibility that passengers are staying or that a speed abnormality has occurred (S6). Then, the car state determination unit 54 transmits the determination result to the alarm content determination unit 61 by the car state transmission unit 55. The notification content determination unit 61 determines the notification content as "retention state or speed abnormality" based on the detection result from the car state detection unit 50, and the notification content transmission unit 62 issues the notification via the public line N. Notify the control center 70 of the information issued by the information content determination unit 61.

Next, in the case of NO in step S3, the emergency stop detection unit 53 detects the emergency stop of the car 2, and the car state determination unit 54 determines the emergency of the car 2 based on the detection result of the emergency stop detection unit 53. It is determined whether or not there is a stop (S7). When the emergency stop of the car 2 is confirmed (YES in S7), the car state determination unit 54 is in an unmanned state because there are no passengers in the car 2 because the car is rated in step S3. It is determined that an emergency stop has occurred, and the process proceeds to step S8. On the other hand, if the emergency stop of the car 2 is not confirmed (NO in S7), the car state determination unit 54 determines that there is a high possibility that the normal operation is being performed in the unmanned state, and proceeds to step S9. To do.

Next, in the case of YES in step S7, the car state determination unit 54 causes an emergency stop after the rated running (no load in the car) in a state where the car door 6 has not been opened / closed (no passengers getting on and off) by step S7. Since it is known that the emergency stop has occurred, it is determined that an unmanned emergency stop has occurred (S8). Then, the car state determination unit 54 transmits the determination result to the notification content determination unit 61 of the external notification device 60 by the car state transmission unit 55. The notification content determination unit 61 determines the notification content as "emergency stop in an unmanned state" based on the detection result from the car state detection unit 50, and the notification content transmission unit 62 issues the notification via the public line N. Notify the control center 70 of the information issued by the information content determination unit 61.

Next, in the case of NO in step S7, the car state determination unit 54 is performing rated running (no load in the car) in a state where the car door 6 has not been opened / closed (no passengers getting on and off) by step S7. Since it is known that the vehicle is running normally in an unmanned state (no abnormality), it is determined (S9).

Next, the car traveling detection unit 52 detects the traveling state of the car 2 based on the measurement data of the acceleration in the Y-axis direction transmitted from the acceleration recording unit 40. Then, the car state determination unit 54 determines whether or not the car 2 is traveling at high speed (that is, a load) based on the detection result of the car traveling detection unit 52 (S10). When the high-speed running of the car 2 is confirmed (YES in S10), the car state determination unit 54 confirms that there are passengers in the car 2 and that the car door 6 is opened and closed in step S2. Therefore, it is determined that the passenger has boarded the car 2 and is driving to another floor by calling the car, and the process proceeds to step S11. On the other hand, when the high-speed running of the car 2 is not confirmed (NO in S10), the car state determination unit 54 confirms the opening / closing operation of the car door 6 in the state where there are no passengers in the car 2 and in step S2. Therefore, it is determined that the passengers do not get into the car 2 and the car 2 is running in an unmanned state by calling the hall, and the process proceeds to step S14.

Next, the emergency stop detection unit 53 detects an emergency stop of the car 2 based on the measurement data of the acceleration in the Y-axis direction transmitted from the acceleration recording unit 40. Then, the car state determination unit 54 determines whether or not the car 2 has an emergency stop based on the detection result of the emergency stop detection unit 53 (S11). When the emergency stop of the car 2 is confirmed (YES in S11), the car state determination unit 54 may have passengers in the car 2 because the car 2 is traveling at high speed in step S10. Is high, it is determined that an emergency stop has occurred in the presence of passengers, and the process proceeds to step S12. On the other hand, if the emergency stop of the car 2 is not confirmed (NO in S11), the car state determination unit 54 determines that there is a high possibility that the vehicle is in normal operation with passengers present, and step S13. Move to.

Next, in the case of YES in step S11, the car state determination unit 54 causes an emergency stop after traveling at high speed (with a load in the car) in a state where the car door 6 is opened and closed (passengers get on and off) by step S11. Since it is known that the confinement has occurred, it is determined that there is a high possibility that confinement has occurred (S12). Then, the car state determination unit 54 transmits the determination result to the notification content determination unit 61 of the external notification device 60 by the car state transmission unit 55. The notification content determination unit 61 determines that the notification content is "confined" based on the detection result from the car state detection unit 50, and the notification content transmission unit 62 determines the notification content via the public line N. Notify the control center 70 of the content of the report of the section 61.

Next, in the case of NO in step S11, it was found that the car state determination unit 54 performed high-speed traveling (with load in the car) while the car door 6 was opened and closed (passengers got on and off) by step S11. Therefore, it is determined (S13) that the passenger has boarded the car 2 and is driving to another floor (no abnormality).

Next, in the case of NO in step S10, the emergency stop detection unit 53 detects the emergency stop of the car 2, and the car state determination unit 54 determines the emergency of the car 2 based on the detection result of the emergency stop detection unit 53. It is determined whether or not there is a stop (S14). When the emergency stop of the car 2 is confirmed (YES in S14), the car state determination unit 54 is in an unmanned state because there are no passengers in the car 2 because the car is rated running in step S10. It is determined that an emergency stop has occurred, and the process proceeds to step S15. On the other hand, when the emergency stop of the car 2 is not confirmed (NO in S14), the car state determination unit 54 determines that there is a high possibility that the normal operation is being performed in the unmanned state, and proceeds to step S16. To do.

Next, in the case of YES in step S14, the car state determination unit 54 causes an emergency stop after rated traveling (no load in the car) in a state where the car door 6 is opened and closed (passengers get on and off) by step S14. Since it is known that this has happened, it is determined that an unmanned emergency stop has occurred (S15). Then, the car state determination unit 54 transmits the determination result to the notification content determination unit 61 of the external notification device 60 by the car state transmission unit 55. The notification content determination unit 61 determines the notification content as "emergency stop in an unmanned state" based on the detection result from the car state detection unit 50, and the notification content transmission unit 62 issues the notification via the public line N. Notify the control center 70 of the information issued by the information content determination unit 61.

The following contents may be applied to the present embodiment in order to improve the determination accuracy. In advance, the vibration of the emergency stop of the car 2 at the loading rate of 0% and the loading rate of 50% is measured by the acceleration sensor and registered as an initial value. After that, in steps S7 and S14, the car state determination unit 54 compares the vibration value and the initial value when the emergency stop of the car 2 occurs. Since the larger the load of the car 2 is, the larger the vibration at the time of emergency stop is, it is possible to more accurately determine whether the inside of the car 2 is manned or unmanned.

Next, in the case of NO in step S14, it was found that the car state determination unit 54 had been rated running (no load in the car) in a state where the car door 6 was opened and closed (passengers got on and off) by step S14. Therefore, it is determined (S16) that the vehicle is normally running in an unmanned state (no abnormality).

After the processing of any one of steps S5 to S6, S8 to S9, S12 to S13, and S15 to S16 is completed, the processing of this flowchart is completed. The in-car condition monitoring system in the present embodiment periodically executes a series of processes of the flowchart of FIG.

As described above, the present embodiment is an elevator car condition monitoring system for determining the state in the car 2 of the elevator 10 which travels at a rated speed when there is no load and travels at a higher speed than the rated running when there is a load. It has an acceleration detection device 20 which is attached to the door of the car 2 and detects the acceleration in the opening / closing direction of the door of the car 2 and the acceleration in the traveling direction of the car 2, respectively, and a car state detecting device 30. .. The car state detection device 30 has a door open / close detection unit 51 that detects the opening / closing operation of the door of the car 2 from the information detected by the acceleration detection device 20, and a high-speed running of the car 2 from the information detected by the acceleration detection device 20. A car traveling detection unit 52 for detecting, and a car state determining unit 54 for determining a state in the car 2 based on the detection result of the door open / close detection unit 51 and the detection result of the car traveling detecting unit 52 are provided.

According to the above configuration, in the present embodiment, the inside of the car 2 is based on the information of the door opening / closing operation output by the acceleration detection device 2 attached to the door of the car 2 and the information of the high-speed running of the car 2. It is possible to detect the presence or absence of passengers. For example, at present, an elevator control device is generally installed in a machine room of a building, and various information such as the load capacity of the elevator car and the running state of the car can be obtained through the elevator control device. In the case of no elevator, this information cannot be obtained. Even in such an elevator, by applying the present embodiment and attaching the acceleration detection device 20 to the car door, it is possible to easily detect the opening / closing operation of the car door and the high-speed running (presence / absence of load) of the car. Is possible.

Further, the car state determination unit 54 in the above-described embodiment provides information indicating whether or not the door of the car 2 has been opened / closed after a predetermined time has elapsed in a non-calling state after the car 2 has landed. , It is configured to determine the presence or absence of a person in the car 2 based on the information indicating whether or not the car 2 has traveled at high speed.

According to the above configuration, in the present embodiment, the acceleration detection device 2 attached to the car 2 is used, and the presence or absence of passengers getting on and off after a predetermined time has elapsed in a non-calling state after the car 2 has landed. By acquiring the information on the presence / absence of high-speed running (load), the presence / absence of a person in the car 2 can be determined with high accuracy.

Further, when the car state determination unit 54 in the above-described embodiment does not detect the opening / closing operation of the door of the car 2 and the high-speed running of the car 2 is detected, the user is inside the car 2. If it is determined that there is a car 2 and the opening / closing operation of the door of the car 2 is not detected and the high-speed running of the car 2 is not detected, it is determined that there is no user in the car 2. Has been done.

According to the above configuration, the present embodiment can determine the presence or absence of a resident in the car 2. For example, when the car condition detection device determines that there is a resident, there is a possibility that a sudden illness has occurred in the car 2, and it is possible to take a highly urgent response to this.

Further, the car state detection device 30 in the above-described embodiment includes an emergency stop detection unit 53 that detects an emergency stop of the car 2 from the information detected by the acceleration detection device 20. Then, the car state determination unit 54 does not detect the opening / closing operation of the door of the car 2 and detects the high-speed running of the car 2 after a predetermined time has elapsed in the non-calling state after the car 2 has landed. If the emergency stop detection unit 53 detects an emergency stop of the car 2, it is determined that confinement has occurred in the presence of the user, and the car 2 lands on the floor. When the opening / closing operation of the door of the car 2 is not detected and the high-speed running of the car 2 is detected after a predetermined time has elapsed in the state of no call from the car 2, the emergency stop detection unit 53 further detects the car 2 If no emergency stop is detected, it is determined that there is a user or at least one of the speed abnormalities has occurred.

According to the above configuration, the present embodiment can determine the detailed state of the car 2 including the presence or absence of a resident in the car 2. This makes it possible to take appropriate processing according to the determination result. For example, when the confinement occurs while the user is staying (S5), the external reporting device 60 notifies the control center 70 of the confinement, and the resident is in the control room 80 in the car 2. It is possible to notify the possibility of being present and select necessary measures (preparation for nursing care when the resident is rescued from the car 2). Further, for example, when the car 2 is traveling while the user is staying (S6), a guard may rush to stop the car 2 and check the staying person in the car 2. it can. In addition, when a speed abnormality occurs in the car 2 (S6), the external reporting device 60 reports the speed abnormality to the control center 70 to switch to control control or dispatch a service engineer to the site. Can be done.

Further, in the car state determination unit 54 in the above-described embodiment, when the opening / closing operation of the door of the car 2 is detected and the high-speed running of the car 2 is detected, the user is placed in the car 2. On the other hand, if the opening / closing operation of the door of the car 2 is detected and the high-speed running of the car is not detected, it is determined that there is no user in the car 2. ing.

According to the above configuration, the car state determination unit 54 detects the opening / closing operation of the door of the car 2 and then detects the presence or absence of high-speed running of the car, so that the car 2 can be used under normal usage conditions. The presence or absence of a user can be determined.

Furthermore, the present invention is not limited to the above-described embodiment, and it goes without saying that various other application examples and modifications can be taken as long as the gist of the present invention described in the claims is not deviated.

For example, the above-described embodiment describes in detail and concretely the configuration of the car interior condition monitoring system of the elevator 10 in order to explain the present invention in an easy-to-understand manner, and is not necessarily limited to those including all the components described above. Not done. It is also possible to add, delete, or replace other components with respect to a part of the configuration of the above-described embodiment.

Further, each of the above configurations, functions, processing units and the like may be realized by hardware by designing a part or all of them by, for example, an integrated circuit. As hardware, FPGA (Field Programmable Gate Array), ASIC (Application Specific Integrated Circuit), or the like may be used.

1 ... hoistway, 2 ... acceleration detector, 4 ... main rope, 5 ... hoist, 6 ... basket door, 7 ... hatch door, 8 ... tail cord, 10 ... elevator, 20 ... acceleration detector, 21 ... X acceleration detection Unit, 22 ... X acceleration transmission unit, 23 ... Y acceleration detection unit, 24 ... Y acceleration transmission unit, 30 ... state detection device, 40 ... acceleration recording unit, 41 ... X acceleration recording unit, 42 ... X acceleration transmission unit, 43 ... Y acceleration recording unit, 44 ... Y acceleration transmission unit, 50 ... state detection unit, 51 ... door open / close detection unit, 52 ... travel detection unit, 53 ... emergency stop detection unit, 54 ... state determination unit, 55 ... status transmission unit , 60 ... External reporting device, 61 ... Notification content determination unit, 62 ... Notification content transmission unit, 70 ... Control center, 80 ... Management room, 90 ... Computing device, 91 ... CPU, 92 ... ROM, 93 ... RAM, 94 ... Display device, 95 ... Operating device, 96 ... Non-volatile storage, 97 ... Communication interface

Claims (6)

It is an elevator car condition monitoring system that determines the condition inside the elevator car, which runs at a rated speed when there is no load and runs at a higher speed than the rated running when there is a load.
An acceleration detection device attached to the car door and detecting the acceleration in the opening / closing direction of the car door and the acceleration in the traveling direction of the car, respectively.
Has a car condition detector,
The car state detection device detects a door open / close detection unit that detects the opening / closing operation of the car door from the information detected by the acceleration detection device, and detects high-speed running of the car from the information detected by the acceleration detection device. A car inside state of an elevator including a car running detection unit, a car state determining unit that determines the state inside the car based on the detection result of the door open / close detection unit and the detection result of the car running detection unit. Monitoring system. The car state determination unit includes information indicating whether or not the car door has been opened and closed after a predetermined time has elapsed in an uncalled state after the car has landed, and the car has traveled at high speed. The elevator car condition monitoring system according to claim 1, wherein the presence or absence of a person in the car is determined based on the information indicating whether or not the car is present. The car condition determination unit
If the opening / closing operation of the car door is not detected and the high-speed running of the car is detected, it is determined that there is a user in the car.
The elevator car according to claim 2, wherein if the opening / closing operation of the car door is not detected and the high-speed running of the car is not detected, it is determined that there is no user in the car. Internal condition monitoring system. The car state detection device includes an emergency stop detection unit that detects an emergency stop of the car from information detected by the acceleration detection device.
The car condition determination unit
This is a case where the opening / closing operation of the door of the car is not detected and the high-speed running of the car is detected after a predetermined time has elapsed in a non-calling state after the car has landed. When the emergency stop detection unit detects an emergency stop of the car, it is determined that confinement has occurred in the presence of the user.
This is a case where the opening / closing operation of the car door is not detected and the high-speed running of the car is detected after a predetermined time has elapsed in a non-calling state after the car has landed. The state monitoring in the car of the elevator according to claim 3, wherein when the emergency stop detection unit does not detect an emergency stop of the car, it is determined that there is a user or at least one of the speed abnormalities has occurred. system. The car condition determination unit
When the opening / closing operation of the car door is detected and the high-speed running of the car is detected, it is determined that there is a user in the car.
In the elevator car according to claim 2, it is determined that there is no user in the car when the opening / closing operation of the car door is detected and the high-speed running of the car is not detected. Condition monitoring system. The elevator car according to any one of claims 1 to 5, further comprising an external notification device that determines the content of the notification based on the determination result of the car condition determination unit and transmits the content of the notification to the external device. Internal condition monitoring system.

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