JP2001199648A - Elevator rescue operation device - Google Patents

Abstract

(57) [Problem] To provide an elevator rescue operation device that can quickly and safely rescue passengers in a car when a safety device operates and a confinement abnormality occurs. SOLUTION: When the safety device 3 outputs an operation signal and the elevator becomes inoperable and a confinement abnormality occurs,
The necessity of rescue is confirmed by the conversation between the passenger in the car 2 and the monitoring center by the communication means 7 and 21, and the result of analyzing the operating state of the elevator may invalidate the detection of the operation signal. If it is determined, the detection of the operation signal is temporarily invalidated and a rescue operation is performed according to a command from the monitoring center. This allows
It is possible to rescue the passengers in the car 2 quickly while giving due consideration to safety.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator rescue operation device, and more particularly to an elevator rescue operation device suitable for rescuing passengers when a safety device operates and the elevator is disabled.

[0002]

2. Description of the Related Art In general, an elevator is remotely monitored by a monitoring center via a communication line, so that a safety device operates to make the elevator inoperable and passengers are trapped in a car that has been stopped in an emergency. If a confinement abnormality occurs, the abnormality information is transmitted to the monitoring center. Therefore, the monitoring center that has received the abnormality information can dispatch a specialized technician to the site to rescue the passengers.

Japanese Patent Application Laid-Open No. 58-193873 discloses that when a confinement error occurs, a dedicated reset circuit allows the elevator to be remotely restored to the same state as when the power was turned on, and the rescue operation is performed in this state. A disclosed technique is disclosed.

Japanese Unexamined Patent Publication No. Hei 9-1000077 discloses that when a confinement abnormality occurs, the contents of a failure determination are stored and transmitted to a monitoring center, and as a result of analyzing the failure determination contents, it can be erased. A technique has been disclosed in which a rescue operation is performed after erasing.

[0005]

In the above-mentioned first prior art, that is, the dispatch of a specialized engineer to the site, it often takes a long time for the engineer to arrive at the site. It was more likely that passengers would be trapped in the car for extended periods of time.

In addition, the above-mentioned second prior art, that is, rescue operation is performed after the elevator is remotely restored to the same state as when the power is turned on by a reset circuit, or the above-mentioned third prior art, that is, If rescue operation is performed after analyzing the failure determination contents, it is possible to rescue trapping abnormalities caused by transient failures such as relay contact failure or momentary power failure, but if the safety device operates, As described above, when the confinement abnormality occurs due to a non-transient signal, there is a problem that the rescue operation cannot be performed by the elevator. In these prior arts, rescue operation is set to be performed automatically.
There was also a fear that passengers in the car could feel uneasy.

The present invention has been made in view of such problems of the prior art, and has as its object to quickly and safely rescue passengers in a car when a safety device operates and a confinement abnormality occurs. The present invention provides an elevator rescue operation device capable of performing the following.

[0008]

In order to achieve the above-mentioned object, a rescue operation device according to the present invention is provided with a safety device for outputting a signal for disabling an operation when an abnormality is detected in an operation state of an elevator, Control means for detecting the signal output by the device to emergency stop the car to make the elevator inoperable, storage means for storing operating states before and after the emergency stop of the inoperable elevator, and this storage means Means for transmitting the stored operating state of the elevator to a remote monitoring center; means for transmitting a command from the monitoring center to the elevator; and a call enabling communication between the monitoring center and a passenger in a car. Means for temporarily disabling detection of said signal of said safety device by a command from said monitoring center, said monitoring center Means for outputting a rescue operation command to the control means in accordance with these commands to set the elevator to a rescue operation mode, temporarily detecting the signal of the elevator which has become inoperable by the signal of the safety device. It was decided to enable rescue operation by invalidating it. Specifically, the means for temporarily disabling the detection of the signal is provided with an input processing unit using a program of a microcomputer, and when a command from the monitoring center is input, the input processing unit performs the above-described processing by a program process. The detection of the signal may be invalidated.

In such a rescue operation device, when the safety device outputs the signal and the elevator becomes inoperable, and a confinement abnormality occurs, the conversation between the passenger in the car and the monitoring center is performed by the communication means. If the necessity of rescue is confirmed and the result of the analysis of the operating state of the elevator indicates that it is acceptable to invalidate the detection of the signal, the detection of the signal is temporarily stopped by a command from the monitoring center. The rescue operation can be performed as invalid, so that the passengers in the car can be quickly rescued while sufficiently considering safety. Further, by having a conversation with the passengers in the car in advance, there is no fear that the passengers may feel uneasy.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. FIG. 1 is a control block diagram of the elevator according to the embodiment.

As shown in FIG. 1, in a building in which an elevator according to the present embodiment is installed, a control device 1 for controlling the operation of the elevator, and a hoistway (not shown) controlled by the control device 1 A car 2 that moves up and down inside the vehicle, a safety device 3 that outputs a signal that disables the operation of the elevator when an abnormality is detected in the operation state of the elevator, and monitors the operation state of the elevator and transmits the information to a monitoring center. A monitoring and rescue operation device 4 for outputting a rescue operation command when an abnormality occurs is provided. The monitoring and rescue operation device 4 is connected via a communication line 5 to a monitoring terminal device 6 for remotely monitoring the elevator. Basket 2
Using the in-car communication device 21 installed in the car, the operator of the monitoring center can talk with the passenger in the car 2.

The control device 1 incorporates a known microcomputer (microcomputer), and comprises two microcomputers, an operation control microcomputer 11 and a speed control microcomputer 15. Each of the operation control microcomputer 11 and the speed control microcomputer 15 has a safety device detection unit 1
4 and 18 and failure content analysis units 13 and 17 are provided. The failure content analysis unit 13 of the operation control microcomputer 11 includes:
Means for detecting various failures in the state of the operation control unit 12 are provided. The failure content analysis unit 17 of the speed control microcomputer 15 is provided with means for detecting various failures in the state of the speed control unit 16. In addition,
The safety device 3 operates, for example, when the car 2 travels at a speed exceeding a rated speed by a predetermined value or more, and generally continues to operate unless the device is manually restored.

Now, the safety device 3 is connected to the traveling car 2
As a result of detecting the abnormal speed of the vehicle and outputting a signal (hereinafter referred to as an operation signal) for disabling the operation of the elevator, the car 2 stops in an emergency on the way floor, and passengers in the car 2 It is assumed that a confinement abnormality of being confined has occurred. In this case, passengers are rescued in the following procedure.

That is, when the safety device 3 operates while the car 2 is traveling between floors, the operation signal is input to the safety device detection units 14 and 18 of the operation control microcomputer 11 and the speed control microcomputer 15. You. In the operation control microcomputer 11, the operation signal of the safety device 3 is sent from the safety device detection unit 14 to the failure content analysis unit 13 to analyze the failure, and is also sent to the operation control unit 12 to send the car 2 An emergency stop process is performed. Similarly, in the speed control microcomputer 15, the operation signal of the safety device 3 is sent from the safety device detection unit 18 to the failure content analysis unit 17 to analyze the failure, and is also sent to the speed control unit 16 for riding. An emergency stop of the car 2 is performed. As a result, the car 2 is emergency stopped on the middle floor, and the elevator is normally in a state where it cannot be started until the safety device 3 is restored.
The passenger is trapped in the car 2.

When such a confinement abnormality occurs, the operation state data is collected by the operation state collection section 41 of the monitoring and rescue operation apparatus 4, stored in the operation state storage section 42, and transmitted to the communication section 46. Sent. Then, the communication unit 46 of the monitoring and rescue operation device 4 sends the operating state data on which the emergency stop processing has been performed to the communication unit 62 of the monitoring terminal device 6 via the communication line 5. Note that the operating state collection unit 4
1 collects the operation state data at regular intervals, and the operation state storage unit 42 stores the operation state data at regular intervals.

The communication unit 62 of the monitoring terminal device 6 stores the operating state data on which the emergency stop processing has been performed in the operating state storage unit 61. It is possible to confirm the operating state of the elevator where the processing has been performed. Further, the operator of the monitoring center can use the monitoring center communication device 7 to talk with the passenger in the car 2 using the in-car communication device 21, and the conversation can confirm the necessity of rescue operation. . In other words, if the passenger desires quick rescue, after checking the operating state of the elevator, it is determined whether rescue operation is possible. If rescue operation is possible, a rescue operation command is sent to the monitoring terminal device. 6 is input to the monitoring terminal operation unit 64. The rescue operation command is sent from the communication unit 62 of the monitoring terminal device 6 to the communication unit 46 of the monitoring and rescue operation device 4 via the communication line 5 and then to the rescue operation command unit 45. On the other hand, the rescue operation availability determination unit 4 of the monitoring and rescue operation device 4
3 judges whether rescue operation is possible or not based on the data in the operation state storage section 42. If no failure is found in any device other than the safety device 3, the rescue operation permission signal is sent to the rescue operation command section 45. Output to And Rescue Driving Command 4
5, when the rescue operation permission signal and the rescue operation command are both input, the rescue operation command signal is output to the operation control unit 12 of the operation control microcomputer 11, and the elevator is set to the rescue operation mode. This rescue operation mode is a mode in which rescue operation is performed in accordance with a command from the monitoring center, and does not automatically operate even if any of the in-car operation panel 22 and the hall call registration device (not shown) is operated.

When the rescue operation is performed, the safety device 3
Since it is necessary to invalidate the detection of the operation signal of the car 2, the operator of the monitoring center informs the passengers in the car 2 of the predetermined operation of the car operation panel 22 and monitors the safety device detection invalidation command. It is input to the monitoring terminal operation unit 64 of the terminal device 6. The safety device detection invalidation command is sent from the communication unit 62 of the monitoring terminal device 6 to the communication unit 46 of the monitoring and rescue operation device 4 via the communication line 5 and then to the safety device detection invalidation instruction unit 44. . Upon receiving the safety device detection invalidation command from the monitoring center, the safety device detection invalidation instructing unit 44 sends the operation control unit 12 and the operation state collection unit 41
A safety device detection invalidation permission signal indicating that the detection of the operation signal of the safety device 3 may be invalidated is output from the rescue operation permission / inhibition determination unit 43 based on the passenger operation content and the failure content transmitted through the rescue operation. Only in this case, the operation control microcomputer 11 and the speed control microcomputer 15 are instructed to disable the detection of the operation signal of the safety device 3 to the respective safety device detection units 14 and 18. As a result, even if the operation signal is continuously transmitted from the safety device 3, the safety device detection units 14 and 18 invalidate the detection, and can start the elevator with the rescue operation.

If the elevator is set to the rescue operation mode and the detection of the operation signal of the safety device 3 is invalidated, the operator of the monitoring center determines the optimum operation direction from the state where the car 2 is in an emergency stop state. Then, the monitoring terminal device 6 is operated to send a traveling command to the elevator side. As a result, the car 2 travels in the designated driving direction at the speed in the predetermined rescue operation mode. When the passenger stops the predetermined operation of the in-car operation panel 22 while traveling, for example, because the passenger feels danger, there is no safety device detection invalidation instruction from the safety device detection invalidation instruction unit 44. Is valid, and the car 2 stops. in this case,
By performing the above-described predetermined operation again, the rescue operation can be restarted.

When the car 2 moves to a position where the door can be opened and closed by rescue operation, the car is stopped, the door is automatically opened, and the passenger can exit the car 2 to the landing.
When the car 2 moves to a position where the door can be opened and closed and stops, even if the passenger stops the predetermined operation of the in-car operation panel 22, the safety device detection invalidation instruction from the safety device detection invalidation instruction unit 44 continues. The door can be automatically opened and closed. Then, after using the monitoring center communication device 7 and the in-car communication device 21 to confirm that the passenger has safely escaped to the landing, the door is automatically closed by a command from the monitoring center to prevent entry. . Thereafter, the elevator is disabled again by releasing the safety device detection invalidation instruction from the safety device detection invalidation instruction unit 44 to enable the detection of the operation signal of the safety device 3.

[0020]

The rescue operation device for an elevator according to the present invention is embodied in the form described above, and has the following effects.

When the safety device outputs an operation signal to make the elevator inoperable and a confinement failure occurs, the necessity of rescue is confirmed by a conversation between the passengers in the car and the monitoring center by means of communication means, and If the result of analyzing the operation state of the elevator indicates that it is OK to invalidate the detection of the operation signal, the rescue operation is performed by temporarily disabling the detection of the operation signal by a command from the monitoring center. As a result, the passengers in the car can be quickly rescued while giving due consideration to safety. Further, by having a conversation with the passengers in the car in advance, there is no fear that the passengers may feel uneasy.

[Brief description of the drawings]

FIG. 1 is a control block diagram of an elevator according to an embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 control device 2 car 3 safety device 4 monitoring device and rescue operation device 5 communication line 6 monitoring terminal device 7 monitoring center communication device 11 operation control microcomputer 14 safety device detection unit 15 speed control microcomputer 18 safety device detection unit 21 car communication Device 22 Operation panel in car 42 Operation state storage unit 43 Rescue operation availability determination unit 44 Safety device detection invalidation instruction unit 45 Rescue operation command unit 46 Communication unit 62 Communication unit 63 Operation state display unit 64 Monitoring terminal operation unit

Claims (4)

[Claims] 1. A safety device for outputting a signal for disabling the operation of an elevator when an abnormality is detected in an operation state of the elevator, and detecting the signal output by the safety device to make an emergency stop of a car to disable the operation of the elevator. Control means, storage means for storing the operating state of the disabled elevator before and after emergency stop, means for transmitting the operating state of the elevator stored in the storage means to a remote monitoring center, Means for transmitting a command from the monitoring center to the elevator side, and a communication means for enabling communication between the monitoring center and passengers in the car; and Means for temporarily disabling signal detection, and a rescue operation command output to the control means in response to a command from the monitoring center to rescue the elevator. Means for setting an operation mode, wherein the elevator which has become inoperable due to the signal of the safety device, is capable of rescue operation by temporarily disabling detection of the signal. Rescue driving equipment. 2. A means for temporarily disabling the detection of the signal is provided with an input processing unit based on a program of a microcomputer, and when a command from the monitoring center is input, the input processing unit executes the processing by the program processing. The rescue operation device for an elevator according to claim 1, wherein the detection of the signal is invalidated. 3. The elevator rescue according to claim 1, wherein the means for temporarily disabling the detection of the signal is interlocked with a preset operation of an in-car operation panel. Driving device. 4. The means for temporarily disabling the detection of the signal is characterized in that the function is stopped after the car that has traveled to the door open zone by rescue operation has completed opening and closing the door. The elevator rescue operation device according to claim 1.