CN107792738B

CN107792738B - Control panel of elevator with automatic recovery function and maintenance terminal

Info

Publication number: CN107792738B
Application number: CN201710226864.9A
Authority: CN
Inventors: 山崎智史
Original assignee: Mitsubishi Electric Building Techno Service Co Ltd
Current assignee: Mitsubishi Electric Building Solutions Corp
Priority date: 2016-09-01
Filing date: 2017-04-06
Publication date: 2020-06-30
Anticipated expiration: 2037-04-06
Also published as: JP2018034982A; CN107792738A; JP6249063B1

Abstract

A control panel of an elevator and a maintenance terminal having an automatic recovery function can reliably confirm the normal operation of automatic reset of an earthquake detector. The control panel (7) of the elevator with the automatic recovery function of the invention comprises: a detector reset unit (18) that transmits a reset request signal to a seismic detector (8) provided in the elevator (1); a storage unit (19) that stores an automatic reset history indicating that the seismic probe (8) has been reset in response to a reset request signal from the probe reset unit (18); and an automatic diagnosis control unit (21) having a function of executing an operation test of an automatic diagnosis operation that can be executed after the occurrence of an earthquake, wherein the operation test is not executed when the automatic reset history is not stored in the storage unit (19).

Description

Control panel of elevator with automatic recovery function and maintenance terminal

Technical Field

The present invention relates to a control panel and a maintenance terminal for an elevator.

Background

Conventionally, there is known an elevator having a function of automatically returning based on a result of an automatic diagnosis operation which can be executed after an operation stop due to an earthquake. The control panel of the elevator having the automatic recovery function is electrically connected to, for example, a seismic detector. The seismic detector is automatically reset, for example, after an earthquake occurs, in response to a reset request from the control panel. If the seismic detector is automatically reset, an automatic recovery function can be performed. As an example of the seismic sensor provided in the elevator, there is a seismic sensor described in patent document 1 below.

[ patent document ]

[ patent document 1 ] Japanese patent application laid-open No. 2010-159123

Disclosure of Invention

Problems to be solved by the invention

In the case where the automatic reset of the seismic detector fails due to a wiring error between the control panel and the seismic detector, or the like, the automatic recovery function cannot be performed. In order to prevent the automatic recovery function from being disabled, it is necessary to perform not only an operation test of the automatic diagnostic operation but also a confirmation that the automatic reset of the seismic sensor is normally performed during the execution of the automatic recovery function. If the maintenance worker does not perform the above confirmation during the construction of the automatic recovery function, the elevator may not be automatically recovered after an actual earthquake occurs.

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an elevator control panel and a maintenance terminal having an automatic recovery function, which can reliably confirm that an automatic reset of a seismic sensor is normally performed.

Means for solving the problems

The control panel of the elevator with automatic recovery function of the invention comprises: a detector reset unit which transmits a reset request signal to a seismic detector provided in the elevator; a storage unit that stores an automatic reset history indicating that the seismic probe is reset in response to a reset request signal from the probe reset unit; and an automatic diagnosis control unit having a function of executing an operation test of an automatic diagnosis operation that can be executed after the occurrence of an earthquake, wherein the operation test is not executed when the automatic reset history is not stored in the storage unit.

The maintenance terminal of the present invention is capable of communicating with the control panel of the elevator having the automatic recovery function, and has a function of receiving an operation for causing the automatic diagnosis control unit to execute an operation test, and receives the operation-related notification information in a state where the automatic reset history is not stored in the storage unit.

Effects of the invention

In the present invention, the automatic diagnosis control unit does not execute the operation test when the automatic reset history is not stored in the storage unit. Therefore, according to the present invention, it is possible to reliably confirm that the automatic reset of the seismic sensor is normally performed.

Drawings

Fig. 1 is a schematic diagram showing an example of an elevator structure.

Fig. 2 is a configuration diagram of a control panel and a maintenance terminal of an elevator according to embodiment 1.

Fig. 3 is a timing diagram schematically showing the relationship between a reset request signal from the control panel of the elevator and an acceleration signal from the seismic detector.

Fig. 4 is a flowchart showing an example of operations of the elevator control panel and the maintenance terminal according to embodiment 1.

Fig. 5 is a hardware configuration diagram of an elevator control panel.

Description of the reference symbols

1, an elevator; 2, a shaft; 3, a traction machine; 4, a rope; 5 a car; 6, the counterweight is carried out; 7, controlling the disc; 8, seismic detectors; 9 a maintenance terminal; 10 an operation part; 11 a notification unit; 12 a notification control unit; 13 an acceleration detection unit; 14 a test button; 15 a reset button; 16 an operation control unit; 17 an acceleration signal detection unit; 18 a detector reset portion; 19 a storage unit; 20 a determination unit; 21 an automatic diagnosis control unit; 50 dedicated hardware; 51 a processor; 52 memory.

Detailed Description

The control panel and the maintenance terminal of the elevator having the automatic recovery function will be described in detail with reference to the accompanying drawings. The same or corresponding parts are denoted by the same reference numerals in the respective drawings. Repetitive description is appropriately simplified or omitted.

Embodiment mode 1

Fig. 1 is a schematic diagram showing an example of an elevator structure.

As shown in fig. 1, an elevator 1 includes a hoistway 2, a hoisting machine 3, a rope 4, a car 5, a counterweight 6, a control panel 7, and a seismic detector 8. The hoistway 2 is formed to penetrate each floor of a building not shown, for example. The hoisting machine 3 is installed in, for example, a machine room not shown. The ropes 4 are wound around the traction machine 3. The car 5 and the counterweight 6 are suspended in the hoistway 2 by the rope 4. The car 5 and the counterweight 6 are driven by the hoisting machine 3 to ascend and descend. The hoisting machine 3 is controlled by a control panel 7.

As shown in fig. 1, the control panel 7 and the seismic detector 8 are installed in, for example, a pit of the hoistway 2. The control panel 7 and the seismic detector 8 may be installed in a machine room or the like, for example. The seismic detector 8 is electrically connected to the control panel 7.

The control panel 7 can communicate with a maintenance terminal not shown in fig. 1. The communication between the control panel 7 and the maintenance terminal may be wired communication or wireless communication. The maintenance worker operates the control panel 7 using the maintenance terminal, for example, during the construction of the automatic recovery function of the elevator.

Fig. 2 is a configuration diagram of a control panel and a maintenance terminal of an elevator according to embodiment 1. Fig. 2 shows a state in which the maintenance terminal 9 and the control panel 7 are connected.

As shown in fig. 2, the maintenance terminal 9 includes an operation unit 10, a notification unit 11, and a notification control unit 12. The seismic sensor 8 includes an acceleration detection unit 13, a test button 14, and a reset button 15. The control panel 7 includes an operation control unit 16, an acceleration signal detection unit 17, a probe reset unit 18, a storage unit 19, a determination unit 20, and an automatic diagnosis control unit 21.

The maintenance terminal 9 is, for example, a notebook computer, a tablet terminal, a smartphone, or the like. The operation unit 10 is, for example, a button, a keyboard, various pointing devices, and the like. The notification unit 11 is, for example, a liquid crystal display or a touch panel. The notification unit 11 may have a function of displaying visual information and a function of playing audio information.

The acceleration detection unit 13 detects a shake such as an earthquake as an acceleration. The acceleration detection unit 13 has a contact that changes from an off state to an on state when acceleration equal to or greater than a predetermined value is applied, for example. The acceleration detection unit 13 outputs an acceleration signal while the contact is in the on state. The acceleration detection unit 13 does not output an acceleration signal while the contact is in the open state.

The acceleration detection unit 13 includes, for example, the 1 st contact and the 2 nd contact. The 1 st contact is turned on when acceleration equal to or greater than a preset 1 st value is applied, for example. The 2 nd contact is turned on when acceleration equal to or greater than the 2 nd value is applied, for example. The 2 nd value is set in advance to a value higher than the 1 st value. That is, when the 2 nd contact is turned on by vibration such as an earthquake, the 1 st contact is also turned on. The acceleration detection unit 13 outputs a low acceleration signal while the 1 st contact is in the on state, for example. The acceleration detection unit 13 outputs a high acceleration signal while the 2 nd contact is in the on state, for example. That is, when a high acceleration signal is output due to a shake of an earthquake or the like, a low acceleration signal is also output.

The test button 14 is, for example, a button operated by a maintenance worker. When the test button 14 is operated, the contact of the acceleration detection unit 13 is turned on. When the test button 14 is operated 1 time, for example, the 1 st contact is turned on. When the test button 14 is operated 2 times, for example, the 2 nd contact is turned on.

The reset button 15 is, for example, a button operated by a maintenance worker. When the reset button 15 is operated, for example, all the contacts of the acceleration detection unit 13 are turned off. That is, when the reset button 15 is operated, the acceleration detection unit 13 stops the output of the low acceleration signal and the high acceleration signal. Hereinafter, the case where the contact of the acceleration detection unit 13 is returned to the off state by the operation of the reset button 15 is also referred to as "manual reset" of the seismic sensor 8.

The operation control unit 16 controls the operation of the elevator 1 by controlling the driving of the hoisting machine 3. That is, the operation control unit 16 controls the movement of the car 5.

The acceleration signal detection unit 17 detects an acceleration signal output from the seismic detector 8. The operation control unit 16 stops the elevator 1 when, for example, the acceleration signal is detected by the acceleration signal detection unit 17.

The probe reset section 18 has a function of transmitting a reset request signal to the seismic probe 8. The probe reset unit 18 transmits a reset request signal after a predetermined time has elapsed from the start of detection of the acceleration signal by the acceleration signal detection unit 17, for example. This time is, for example, 1 minute.

When the seismic sensor 8 receives the reset request signal, the 1 st contact of the acceleration detection unit 13 is turned from the on state to the off state. That is, when the seismic sensor 8 receives the reset request signal, the acceleration detection unit 13 stops the output of the low acceleration signal. Hereinafter, the case where the 1 st contact of the acceleration detection unit 13 is returned to the off state by the reset request signal from the control panel 7 is also referred to as "automatic reset" of the seismic sensor 8.

The state of the 2 nd contact of the acceleration detection unit 13 does not change according to the reception of the reset request signal by the seismic sensor 8. That is, even when the seismic sensor 8 receives the reset request signal, the acceleration detection unit 13 does not stop outputting, for example, a high acceleration signal.

Fig. 3 is a timing diagram schematically showing the relationship between a reset request signal from the control panel of the elevator and an acceleration signal from the seismic detector. Fig. 3 shows the case where the test button 14 is operated at time t1 and the seismic detector 8 is automatically reset at time t 2.

The storage unit 19 stores an automatic reset history. The determination unit 20 determines whether or not the automatic reset history is stored in the storage unit 19. The automatic reset history refers to information indicating a situation in which the seismic detector 8 is automatically reset. When the acceleration signal detecting unit 17 continues to detect the low acceleration signal, the automatic reset history is not stored.

For example, when the time difference between the time when the reset request signal is transmitted from the probe reset unit 18 and the time when the low acceleration signal is not detected by the acceleration signal detection unit 17 is less than a predetermined value, the automatic reset history is stored. For example, when the time difference is equal to or greater than this value, the automatic reset history is not stored.

The automatic diagnosis control unit 21 has a function of executing an automatic diagnosis operation. The automatic diagnosis operation is an operation performed after an actual earthquake occurs in order to determine whether or not the elevator 1 can be automatically recovered. For example, when the acceleration signal detecting unit 17 detects a low acceleration signal and does not detect a high acceleration signal, an automatic diagnosis operation is performed. For example, when the acceleration signal detecting unit 17 detects a high acceleration signal, the automatic diagnosis operation is not performed.

The automatic diagnosis control unit 21 has a function of executing an operation test of an automatic diagnosis operation. The operation test is to operate the elevator 1 in accordance with the contents corresponding to the automatic diagnosis operation. For example, when the automatic recovery function of the elevator is performed, the maintenance worker performs an operation of causing the automatic diagnosis control unit 21 to execute an operation test on the operation unit 10 of the maintenance terminal 9.

When the determination unit 20 determines that the automatic reset history is stored in the storage unit 19, the automatic diagnosis control unit 21 executes the operation test based on the operation received by the operation unit 10 of the maintenance terminal 9. That is, when the automatic reset history is stored in the storage unit 19, the automatic diagnosis control unit 21 can execute the operation test. When the determination unit 20 determines that the automatic reset history is not stored in the storage unit 19, the automatic diagnosis control unit 21 does not execute the operation test. That is, when the storage unit 19 does not store the automatic reset history, the automatic diagnosis control unit 21 cannot execute the operation test.

When the determination unit 20 determines that the automatic reset history is not stored in the storage unit 19 and the operation unit 10 has received an operation for causing the automatic diagnosis control unit 21 to execute the operation test, the notification control unit 12 causes the notification unit 11 to notify the warning information. The warning information is, for example, a message indicating that the automatic reset of the seismic detector 8 is not confirmed.

The maintenance worker instructs an operation test using the maintenance terminal 9 when, for example, the automatic recovery function of the elevator is implemented (step S101). The control board 7 determines whether or not there is an automatic reset history of the seismic detector 8 (step S102).

When it is determined in step S102 that the automatic reset history is not recorded, the maintenance terminal 9 notifies the maintenance worker of warning information (step S103). The maintenance worker performs a procedure for normally automatically resetting the seismic detector 8 (step S104). The processing in step S104 is, for example, correction of a wiring error between the control panel 7 and the seismic detector 8. Then, for example, when the test button 14 is operated and the 1 st contact of the acceleration detector 13 is turned on, the earthquake detector 8 returns the 1 st contact to the off state in response to a reset request signal from the control panel 7 to automatically reset (step S105). The control dial 7 stores the automatic reset history (step S106).

When the maintenance worker instructs the operation test again in step S101, the process in step S102 is performed. If it is determined in S102 that the automatic reset history exists, the control panel 7 executes an operation test of the automatic diagnosis operation (step S107).

In embodiment 1, the probe reset unit 18 transmits a reset request signal to the seismic probe 8 provided in the elevator 1. The storage section 19 stores an automatic reset history indicating that the seismic probe 8 is reset in accordance with a reset request signal from the probe reset section 18. The automatic diagnosis control unit 21 has a function of executing an operation test of an automatic diagnosis operation that can be executed after the occurrence of an earthquake, and does not execute the operation test when the automatic reset history is not stored in the storage unit 19. That is, the maintenance worker cannot perform the operation test without confirming the automatic reset of the seismic detector 8. Therefore, according to embodiment 1, it is possible to reliably confirm that the automatic reset of the seismic sensor is normally performed. As a result, the automatic recovery rate of the elevator after the occurrence of the earthquake can be improved. This can suppress a decrease in convenience for elevator users, and can reduce the work load on maintenance workers.

In embodiment 1, the maintenance terminal 9 can communicate with the control panel 7. The maintenance terminal 9 has a function of receiving an operation for causing the automatic diagnosis control unit 21 to execute an operation test. When the maintenance terminal 9 accepts the operation in a state where the automatic reset history is not stored in the storage unit 19, it notifies the warning information. That is, the maintenance worker can easily recognize the processing required for performing the operation test. Therefore, according to embodiment 1, it is possible to reliably confirm that the automatic reset of the seismic sensor is normally performed.

Fig. 5 is a hardware configuration diagram of an elevator control panel.

The functions of the operation control unit 16, the acceleration signal detection unit 17, the probe reset unit 18, the storage unit 19, the determination unit 20, and the automatic diagnosis control unit 21 of the control panel 7 are realized by a processing circuit. The processing circuitry may be dedicated hardware 50. The processing circuit may also have a processor 51 and a memory 52. A part of the processing circuit may be formed as dedicated hardware 50, and further include a processor 51 and a memory 52. Fig. 5 shows an example of a case where a part of the processing circuit is formed as dedicated hardware 50, and further has a processor 51 and a memory 52.

Where at least a portion of the processing circuitry is at least one dedicated hardware 50, for example, a single circuit, a complex circuit, a programmed processor, a parallel programmed processor, an ASIC, an FPGA, or a combination thereof, may belong to the processing circuitry.

In the case where the processing circuit includes at least one processor 51 and at least one memory 52, the functions of the operation control unit 16, the acceleration signal detection unit 17, the probe reset unit 18, the storage unit 19, the determination unit 20, and the automatic diagnosis control unit 21 are realized by software, firmware, or a combination of software and firmware. The software and firmware are described as programs and stored in the memory 52. The processor 51 reads out and executes the program stored in the memory 52, thereby realizing the functions of each section. The processor 51 is also called a CPU (Central Processing Unit), a Central Processing Unit, a Processing Unit, an arithmetic Unit, a microprocessor, a microcomputer, or a DSP. For example, nonvolatile or volatile semiconductor memories such as RAM, ROM, flash memory, EPROM, EEPROM, magnetic disks, flexible disks, optical disks, CDs, minidisks, DVDs, and the like are included in the memory 52.

In this way, the processing circuitry can implement the various functions of the control panel 7 using hardware, software, firmware, or a combination thereof. The various functions of the seismic sensor 8 and the maintenance terminal 9 are also realized by a processing circuit similar to the processing circuit shown in fig. 5.

Claims

1. A control panel of an elevator having an automatic recovery function, wherein the control panel of an elevator has:

a detector reset unit which transmits a reset request signal to a seismic detector provided in the elevator;

a storage unit that stores an automatic reset history indicating that the seismic probe is reset in response to a reset request signal from the probe reset unit; and

and an automatic diagnosis control unit having a function of executing an operation test of an automatic diagnosis operation that can be executed after an earthquake occurs, wherein the operation test is not executed when the automatic reset history is not stored in the storage unit.

2. A maintenance terminal, wherein,

the maintenance terminal is capable of communicating with the control panel of the elevator having the automatic recovery function according to claim 1, has a function of receiving an operation for causing the automatic diagnosis control unit to execute the operation test, and receives an alarm message when the operation is received in a state where the automatic reset history is not stored in the storage unit.