JP2014218330A - Maintenance operation device of elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a maintenance operation device of an elevator which can surely ensure safety of a worker in a hoistway.SOLUTION: A maintenance operation device 20 of an elevator is provided with determining means which, when at least one of an ascent button 25 and a descent button 26 in a processing part 21 is operated during the maintenance operation of an elevator, determines whether or not the number of communication terminals 30 sending an operation permission signal corresponding to an operation confirmation signal sent to the communication terminals 30 is equal to the number of collaborative workers 41, 42 registered by a number-of-persons registration button 28. When the determining means determines that the number of the communication terminals 30 sending the operation permission signal is equal to the number of the collaborative workers 41, 42 registered by the number-of-persons registration button 28, the maintenance operation device 20 controls to perform maintenance operation of the elevator.

Description

  The present invention relates to an elevator maintenance operation device that performs traveling control during elevator maintenance operation.

  In recent years, manufacturers of elevators have been promoting space saving in the tower in order to reduce the elevator hoistway that is a common part of the building. On the other hand, it is difficult for an operator who checks the elevator in the tower to secure a safe working space due to space saving in the tower. Moreover, it is necessary to carefully perform the operation of the elevator in a state where the worker is present on the car or the bottom of the hoistway from the viewpoint of ensuring the safety of the worker.

  Therefore, for the purpose of prohibiting unexpected operation by collaborators who work together with the inspection operator during elevator operation, the portable remote control device is carried by the operator, and the antenna arranged in the inspection area is portable. Patent Document 1 discloses a technique for switching to the inspection operation mode when a signal from the remote control is received, permitting the operation only when the operation of the portable remote controller satisfies a preset condition, and ensuring the safety of the inspection operator. ing.

  In addition, for the same purpose, a load sensor is installed on the ceiling of the car, and when an inspection worker gets on the car, the load sensor detects that the operation state is switched to the maintenance and inspection mode to improve safety. Is disclosed in Patent Document 2.

JP 2012-41155 A JP 2000-351545 A

  However, although the above-mentioned two conventional technologies can ensure the safety of the worker on the car, the above-mentioned antenna and sensor can detect the presence of the worker on the beam near the intermediate floor of the hoistway. Therefore, it is not necessarily sufficient as a measure for ensuring the safety of workers.

  The present invention has been made from the above-described situation in the prior art, and an object of the present invention is to provide an elevator maintenance operation device that can reliably ensure the safety of workers present in a hoistway. .

  In order to achieve the above object, an elevator maintenance operation apparatus according to the present invention is an elevator maintenance operation apparatus having an up button and a down button for performing travel control during an elevator maintenance operation. A communication means for communicating with a communication terminal owned by a collaborator working together, and a number registration button for registering the collaborator, and the up button and the down button during maintenance operation of the elevator The number of the communication terminals that transmit the driving permission signal in response to the driving confirmation signal transmitted to the communication terminal when at least one of them is operated is the collaborator registered by the number registration button. Determining means for determining whether or not the number of communication terminals that transmit the driving permission signal by the determining means is equal to the number of persons registered button. When it is determined that the number of joint workers registered is equal to the number of registered collaborators, the number of the communication terminals that control to enable execution of maintenance operation of the elevator and transmit the operation permission signal is When it is determined that the number is not equal to the number of registered collaborators by the number registration button, control is performed such that the maintenance operation of the elevator is disabled.

  The elevator maintenance driving apparatus according to the present invention is a communication terminal that transmits a driving permission signal in response to an operation confirmation signal transmitted to a communication terminal owned by a collaborative worker who collaborates with an inspection worker by a determination unit. When it is determined that the number is not equal to the number of collaborators registered by the number registration button, that is, when there is a collaborator who does not transmit an operation permission signal due to his / her location in the hoistway. Elevator travel is prohibited. As a result, it is possible to reliably ensure the safety of the workers present in the hoistway, and to perform a highly reliable maintenance operation of the elevator.

1 is a block diagram showing a configuration of an embodiment of an elevator maintenance operation apparatus according to the present invention. It is a flowchart which shows the process sequence in the communication terminal connected to the maintenance operation apparatus which concerns on this embodiment, and a maintenance operation apparatus.

  Embodiments of an elevator maintenance operation apparatus according to the present invention will be described below with reference to the drawings.

  FIG. 1 is a block diagram showing a configuration of an embodiment of an elevator maintenance operation apparatus according to the present invention.

  In the elevator provided with this embodiment, a car 2 and a counterweight 3 are arranged in a hoistway 1, and the car 2 and the counterweight 3 are connected by a rope 4 via a pulley 7 and a sheave 6. . The control device 10 controls the rotation of the sheave 6 via the motor 5 by operating a landing button (not shown) of a user (not shown) or a car button (not shown) installed on the operation panel 11. Thereby, the rope 4 moves up and down, and the car 2 and the counterweight 3 travel up and down in the hoistway 1.

  The inspection worker 40 in the car 2 is a maintenance worker engaged in the inspection work of the elevator. Here, the maintenance worker 40 is connected to the operation panel 11 by the cable 13 of the maintenance operation device 20 in the car 2 and is in charge of the maintenance operation. To do. In FIG. 1, for example, the joint worker 41 is present at the bottom of the tower, and the joint worker 42 is a car. 2 is present at the top.

  The maintenance operation device 20 according to the present embodiment can be connected not only to the operation panel 11 but also to the control device 10 and the operation panel 12 on the car. The operation panel 11 and the operation panel 12 are connected to the control device 10 by a cable (not shown). When the maintenance operation device 20 is connected to at least one of the operation panel 11, the operation panel 12, and the control device 10, the control device 10 is set to a maintenance operation mode in which the elevator travels at a low speed from a normal operation mode in which the elevator travels at a high speed. .

  As shown in FIG. 1, the maintenance operation device 20 according to the present embodiment includes an up button 25 and a down button 26 that perform elevator travel control. The present embodiment also includes a number registration button 28 for registering the number of collaborators 41 and 42.

  When the number of people registration button 28 of the maintenance operation device 20 according to the present embodiment is not operated and there is no collaborator, the elevator in the maintenance operation mode is pressed when the inspection worker 40 presses the lift button 25 of the maintenance operation device 20. The processing unit 21 transmits a low-speed rising signal from the control signal transmission unit 29 to the control device 10 via the cable 13, and the car 2 travels at a low speed, and the car 2 stops when the lift button 25 is released. To do. Similarly, when the lowering button 26 is pressed, the car 2 travels at a low speed, and the car 2 stops when the lowering button 26 is released. When the stop switch 27 is turned on, the car 2 stops.

  On the other hand, when there is a collaborator, the number registration button 28 of the maintenance operation device 20 is operated to register the number of collaborators. When the number registration button 28 is pressed once, “1” is displayed on the display unit 23. By pressing the number of collaborators, the actual number of collaborators is registered and displayed on the display unit 23.

  The inspection worker 40 operates the number registration button 28 of the maintenance operation device 20 when performing joint work with the joint workers 41 and 42, and in this case, registers the number of two joint workers. When the up button 25 of the maintenance operation device 20 is pressed, the processing unit 21 detects the press of the up button 25 and sends an operation confirmation signal to the communication terminal 30 owned by the collaborators 41 and 42 via the wireless communication means 22. That is, a rising operation warning signal is transmitted.

  When the rising operation warning signal from the maintenance operation device 20 is received by the wireless communication means 32 of the communication terminal 30, the processing unit 31 of the communication terminal 30 emits an alarm sound from the speaker 34 and displays “up” on the display unit 33. .

  The collaborators 41 and 42 who have noticed the alarm sound confirm the “rise” of the driving direction displayed on the display unit 33, and the car 2, the counterweight 3 and the rope 4 are in the upward direction. It moves to a safe position even if it moves, and presses the OK button 35 of the communication terminal 30. The processing unit 31 detects pressing of the OK button 35, stops the alarm sound from the speaker 34, and transmits an operation permission signal, that is, an OK signal from the wireless communication unit 32 to the wireless communication unit 22 of the maintenance operation device 20.

  The processing unit 21 included in the present embodiment is an operation permission signal for an operation confirmation signal transmitted to the communication terminal 30 when at least one of the up button 25 and the down button 26 is operated during maintenance operation of the elevator. Determination means for determining whether or not the number of communication terminals 30 that transmit the number is equal to the number of collaborators 41 and 42 registered by the number registration button 28.

  When the operation permission signal from the communication terminal 30, that is, the acknowledge signal is received by the wireless communication means 22, the processing unit 21 of the maintenance operation device 20 stores that the communication terminal 30 has received the acknowledge signal. If the determination means of the processing unit 21 determines that the number of stored communication terminals 30 is equal to the number of collaborators stored by the operation of the number registration button 28, the low speed increase signal is transmitted to the control signal transmission unit 29 and the cable. 13 is transmitted to the control device 10 via 13. As a result, the car 2 travels at a low speed, and the car 2 stops when the push button 25 is released.

  Similarly, when the lowering button 26 is pressed, the maintenance operation device 20 transmits an operation confirmation signal, that is, a lowering operation warning signal to the communication terminal 30. The communication terminal 30 that has received the descent operation alarm signal emits an alarm sound from the speaker 34 and displays “down” on the display unit 33. When the collaborators 41 and 42 press the OK button 35, the warning sound stops and an operation permission signal, that is, an OK signal is transmitted to the maintenance operation device 20.

  In the maintenance terminal device 20 that has received the acknowledgment signal from the communication terminal 30, if the determination means of the processing unit 21 determines that the number of the communication terminals 30 that have received the approval signal is equal to the number of collaborators, the speed is low. A descending signal is transmitted to the control device 10 via the control signal transmitting unit 29 and the cable 13, the car 2 descends at a low speed, and the car 2 stops when the descending button 26 is released.

  By the way, in the communication terminal 30, when an alarm sound is emitted from the speaker 34 and the driving direction “up” or “down” is displayed on the display unit 33, for example, at least one of the collaborators 41, 42 is pressed. If not, the determination unit of the processing unit 21 determines that the number of communication terminals 30 that have received the acknowledgment signal is not equal to the number of collaborators. When it is determined in this way, the processing is terminated after a predetermined time has elapsed, neither the low speed increase signal nor the low speed decrease signal is output, and the elevator travel is prohibited.

  When the stop switch 27 is turned on, the maintenance operation device 20 does not transmit a signal to the communication terminal 30, but immediately transmits a stop signal to the control device 10 via the control signal transmission unit 29 and the cable 13. Car 2 is stopped.

  Next, the processing operation according to the present embodiment will be described based on the flowchart of FIG. In FIG. 2, the processing procedure of the maintenance operation apparatus 20 is indicated by adding a processing number to “S”, and the processing procedure of the communication terminal 30 is indicated by adding a processing number to “T”.

  First, as shown in step S1, the number registration button 28 is pressed. If the number registration button 28 is pressed once (YES in step S1), the number of joint workers is additionally registered in step S2. The processes of steps S1 and S2 are repeated for the number of collaborators.

  Next, if the number registration button 28 is not pressed in step S1 (NO in step S1), it is confirmed in step S3 that the stop switch 27 is turned on. If the stop switch 27 is turned on (YES in step S3), the maintenance operation device 20 transmits a stop signal to the control device 10 via the control signal transmission unit 29 and the cable 13 in step S4. Controls to stop the car 2. Then, it returns to procedure S1 and the process similar to the above is implemented.

  Next, if the stop switch 27 is not turned on (NO in step S3), the push of the up button 25 is confirmed in step S5. If the up button 25 is not pressed (NO in step S5), the press of the down button 26 is confirmed in step S14. Step S14 and subsequent steps will be described later.

  If the ascending button 25 is pressed (YES in step S5), in step S6, the maintenance operation device 20 transmits an operation confirmation signal, that is, an ascending operation alarm signal to the communication terminal 30 via the wireless communication unit 22. .

  At this time, in the procedure T1, the communication terminal 30 waits for an ascending operation alarm signal in the procedure S6 of the maintenance operation apparatus 20 or a descending operation alarm signal in the procedure S15 described later. In the procedure T1, when neither the ascending operation alarm signal nor the descending operation alarm signal is received from the maintenance operation device 20 (NO in the procedure T1), the procedure T1 is repeatedly performed.

  When either the ascending operation alarm signal or the descending operation alarm signal is received from the maintenance operation device 20 (YES in procedure T1), the processor 31 of the communication terminal 30 causes the ascending operation alarm in the wireless communication means 32 in procedure T2. Recognizing that either the signal or the descent operation warning signal has been received, an alarm sound is emitted from the speaker 34. When the ascending operation alarm signal is received, “rising” is received, and when the descent operation alarm signal is received. “Descent” is displayed on the display unit 33.

  Next, in step T3, the alarm sound from the speaker 34 is heard, the display on the display unit 33 is confirmed, and the OK button 35 operated by the collaborators 41 and 42 who have safely evacuated in the driving direction of the car 2 is used. Check the pressure. If the OK button 35 is not pressed (NO in step T3), the step T2 is repeated.

  When the OK button 35 is pressed (YES in step T3), in step T4, the processing unit 31 transmits an operation permission signal, that is, an approval signal from the wireless communication unit 32 to the wireless communication unit 22 of the maintenance operation device 20. .

  At this time, the processing unit 21 of the maintenance operation device 20 waits for an acknowledgment signal from the communication terminal 30 in step S7. When the acknowledge signal has not been received (NO in step S7), in step S8, the elapsed time after the transmission of the rising operation alarm signal in step S6 is confirmed. When this elapsed time has not passed the predetermined time (NO in step S8), the step S7 is repeatedly performed.

  When this elapsed time has passed a predetermined time (YES in step S8), an alarm sound is emitted from the speaker 24 by the processing of the processing unit 21 in step S9. After a warning sound is emitted for a predetermined time, the process returns to step S1, and the same processing as described above is repeatedly performed.

  When an acknowledgment signal is received from the communication terminal 30 (YES in step S7), the number of communication terminals 30 is counted up in step S10. At this time, the acknowledgment signal from the communication terminal 30 includes a signal that can be identified from among the plurality of communication terminals 30.

  Next, in step S11, the number of communication terminals 30 counted in step S10 is compared with the number of collaborators registered in step S2. If the number of registered collaborators is less than the number of communication terminals 30 (NO in step S11), step S7 is repeated.

  If the number of registered collaborators is equal to the number of communication terminals 30 (YES in step S11), the processing unit 21 goes to the control device 10 via the control signal transmission unit 29 and the cable 13 at a low speed in step S12. The control device 10 causes the car 2 to travel at a low speed.

  In step S13, it is confirmed that the ascending button 25 is released. When the up button 25 is continuously pressed and not released (NO in step S13), step S12 is repeatedly performed.

  When the press of the up button 25 is released (YES in step S13), the transmission of the low speed up signal is stopped and the process returns to step S1.

  In step S5, the pressing of the up button 25 is confirmed. If the up button 25 is not pressed (NO in step S5), the pressing of the down button 26 is confirmed in step S14.

  In step S14, if the lowering button 26 is not pressed (NO in step S14), the process returns to step S1.

  If the lowering button 26 is pressed (YES in step S14), the maintenance operation device 20 transmits a lowering operation warning signal to the communication terminal 30 via the wireless communication unit 22 in step S15.

  The communication terminal 30 executes the procedure T1, and in the procedure T2, the alarm sound is emitted from the speaker 34 and the descending operation warning signal is received, so “down” is displayed on the display unit 33.

  Next, in step T <b> 3, the collaborators 41 and 42 retreat to a safe place with respect to the direction in which the car 2 is lowered, and press the OK button 35. By pressing the OK button 35, the communication terminal 30 transmits an operation permission signal, that is, an OK signal to the maintenance operation device 20 in step T4.

  At this time, the maintenance operation device 20 waits for an acknowledgment signal from the communication terminal 30 in step S16. When the acknowledge signal has not been received (NO in step S16), in step S17, the elapsed time after the transmission of the descending operation warning signal in step S15 is confirmed. When this elapsed time has not passed the predetermined time (NO in step S17), the step S16 is repeatedly performed.

  If this elapsed time has passed a predetermined time (YES in step S17), an alarm sound is emitted from the speaker 24 by the processing of the processing unit 21 in step S18. After a warning sound is emitted for a predetermined time, the process returns to step S1.

  When an acknowledgment signal is received from the communication terminal 30 (YES in step S16), the number of communication terminals 30 is counted up in step S19.

  Next, in step S20, the number of communication terminals 30 counted in step S19 is compared with the number of collaborators registered in step S2. If the communication terminal 30 is less than the number of registered collaborators (NO in step S20), step S16 is repeated.

  When the number of registered collaborators is equal to the number of communication terminals 30 (YES in step S20), in step S21, the processing unit 21 transmits a low-speed descent signal to the control device 10, and the control device 10 transmits the car 2. Drive at low speed.

  In step S22, the release of the lowering button 26 is confirmed. When the lowering button 26 is continuously pressed and not released (NO in step S22), step S21 is repeatedly performed.

  If the depression of the lowering button 26 is released (YES in step S22), the transmission of the low speed rising signal is stopped and the process returns to step S1. Above, description of the processing operation of the maintenance driving | operation apparatus 20 and the communication terminal 30 is complete | finished.

  As described above, the elevator maintenance operation apparatus 20 according to the present embodiment uses the determination unit provided in the processing unit 21 to the communication terminal 30 owned by the joint workers 41 and 42 working together with the inspection worker 40. When it is determined that the number of communication terminals 30 that transmit a driving permission signal to the transmitted driving confirmation signal is not equal to the number of collaborators 41 and 42 registered by the number registration button 28, that is, the hoistway 1 When there is a collaborator who does not transmit a driving permission signal due to the location of the vehicle, the traveling of the elevator is prohibited. Thereby, this embodiment can implement | achieve reliably ensuring the safety | security of the inspection worker 40 and the collaborators 41 and 42 which exist in the hoistway 1, and can perform the maintenance operation | movement of a reliable elevator. it can.

  It is to be noted that in the case of a recent elevator maintenance work with a long lifting process that is difficult to signal and revenge, there is a joint worker at the bottom of the hoistway 1, and an inspection worker in the car 2 or on the car When this embodiment is applied in a situation where the vehicle is traveling, the elevator can be traveled while ensuring the safety of the collaborator.

  In addition, when performing maintenance work on an elevator in which a plurality of elevators travels within one hoistway 1, it is difficult to perform signal revenge due to noise such as running noise of doors that do not perform maintenance work and opening / closing sounds of doors. In some cases, when the present embodiment is applied, the elevator can be run while ensuring the safety of the collaborator.

DESCRIPTION OF SYMBOLS 1 Hoistway 2 Passenger car 3 Counterweight 10 Control apparatus 11 Operation panel 12 Operation panel 20 Maintenance operation apparatus 21 Processing part 22 Wireless communication means 25 Up button 26 Down button 27 Stop switch 28 Number registration button 29 Control signal transmission part 30 Communication terminal 31 Processing Unit 32 Wireless Communication Means 35 OK Button 40 Inspection Worker 41 Joint Worker 42 Joint Worker

Claims (1)

In an elevator maintenance operation device having an ascending button and a descending button for performing travel control during maintenance operation of the elevator,
A communication means for communicating with a communication terminal owned by a collaborator working together with the elevator inspection worker;
With a number registration button for registering the collaborator,
The number of communication terminals that transmit an operation permission signal in response to an operation confirmation signal transmitted to the communication terminal when at least one of the up button and the down button is operated during maintenance operation of the elevator Comprises a determination means for determining whether or not it is equal to the number of collaborators registered by the number registration button,
In the determination means,
When it is determined that the number of the communication terminals that transmit the operation permission signal is equal to the number of the collaborators registered by the number registration button, the elevator maintenance operation can be performed. Control
When it is determined that the number of the communication terminals that transmit the operation permission signal is not equal to the number of the collaborators registered by the number registration button, the maintenance operation of the elevator is disabled. Elevator maintenance operation device characterized by being controlled to

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