JPH09202559A - Rescue operation device of elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To safely rescue a passenger shut up in a car in a short time by judging the signification level of rescue from the content of abnormalities to be detected by an abnormality detecting device, and selecting whether the rescue operation is performed or not. SOLUTION: When a safety device is operated during the traveling operation of an elevator, an abnormality detecting device 20 gives an emergency stop command to an elevator controller 11 and emergency-stops an elevator. The abnormal detecting device 20 reads the operating state of a contact of the safety device in the elevator controller 11 and judges whether the rescue operation is needed or not, or possible or not. A door closing command is output to a door driving device 6 so that a door may not be opened in the operable time, and a car is moved to the nearest stage. In a case where the rescue operation is impossible, for example, when an over-speed switch of a speed governor is operated, the operation is notified to a monitor center 30 through a notifying device 21. The content of abnormalities is confirmed by a watchman in the monitor center 30, and rescue is performed by a professional engineer.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rescue operation device for an elevator suitable for rescue of passengers trapped in a car.

[0002]

2. Description of the Related Art A technique for performing rescue operation to rescue passengers trapped in an elevator car has hitherto been disclosed in Japanese Patent Publication No. 7-
Japanese Patent No. 55772 discloses an elevator drive device for moving a car up and down, a failure detection device for detecting a failure of an elevator, a monitoring center for monitoring a failure of the elevator detected by the failure detection device, and a failure content of the failure detection device. And a car door from the monitoring center in an elevator rescue operation device equipped with a telephone automatic notification device that automatically informs the monitoring center that the car has stopped between floors and enables telephone calls from each other. And a door driving device that controls opening and closing of the car door based on a door opening / closing command from the command sending unit, and based on the door opening / closing command from the command sending unit, The car door is opened / closed by controlling the door drive device, and after confirming the fully closed state of the car door, the elevator drive device Therefore there is that to perform the rescue operation of said car.

[0003]

In the above prior art, when an abnormality occurs in the elevator and passengers are trapped in the car, the car door is controlled to a predetermined size by remote control from a monitoring center installed in a remote place. It is designed to open and close to recover and rescue a trapping failure that occurs when foreign matter is caught in the door.When performing remote control, it informs passengers that it is dangerous via a telephone. The passengers are not always able to respond, and there is a risk of unexpected and extremely dangerous situations such as reaching for the car door to open and close, or touching the switch on the landing door when the car door opens. there were.

Further, since the above-mentioned danger is latent, the monitoring center pays sufficient attention to ensuring the safety of passengers even if a confinement failure occurs at a low risk during rescue, and a great amount of time is required for rescue. In short, there was a problem that made passengers feel uneasy.

It is an object of the present invention to provide an elevator rescue operation device which can safely and quickly rescue passengers trapped in a car due to a failure of the elevator.

[0006]

In order to achieve the above-mentioned object, the present invention provides an elevator operation control device for controlling elevator car up / down, an abnormality detection device for detecting an abnormality of an elevator, and an abnormality detection device for detecting the abnormality. A communication device that transmits the abnormal occurrence information to a monitoring center that remotely monitors the abnormality of a plurality of elevators via a communication line, and that enables communication between the communication device provided in the car and the monitoring center. In the rescue operation device of the elevator including the rescue operation device that rescues the passengers trapped in the car from the monitoring center installed in the elevator operation control device, from the abnormality content detected by the abnormality detection device Danger degree determining means for determining a rescue degree, and rescue operation selecting means for selecting whether or not to perform the rescue operation based on the determination result of the risk determining means. It is those with a.

With this configuration, the abnormal state is detected, and it is determined whether or not the rescue operation is performed based on the magnitude of the rescue risk. If it is determined that the rescue risk is low, The passengers trapped in the car can be safely and quickly rescued without going through the monitoring center, and the burden on the monitoring center can be reduced.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described in detail below with reference to the drawings.

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

In FIG. 1, a basket 1 and a counterweight 2
Is wound around a sheave 4 with a rope 3 and connected in a slippery manner. When the electric motor 5 drives the sheave 3, the car 1
Raise or lower to any floor. This electric motor 5
Is controlled by a travel command obtained by the electric motor control device 10. The door 1a of the car 1 is opened and closed by a door drive device 6 installed on the car 1. The door drive device 6 is connected via a control cable 12 so that a door opening / closing command is supplied from the elevator control device 11. Normally, the elevator control device 11 has a signal cable 1
After confirming that the door 1a is closed by the contact signal of the door closing detection switch 8 connected via 3, the running command is given to the electric motor control device 10. The door closing detection switch 8 has an open contact when the door 1a is open, and the contact is closed at a predetermined position of the closed end of the door 1a. The elevator controller 11 has a door 1a
The door position detecting device 7 that outputs the position signal of is connected via the signal cable 13. Also, the abnormality detection device 2
0 is connected to the door position detection device and the elevator control device 11 via a signal cable 13, constantly monitors the door open / closed state and the elevator control state, and when detecting an abnormality in the elevator, issues a command to the notification device 21. , Performs automatic dialing to the monitoring center 30 and reports that an abnormality has occurred through the telephone line 22.

On the other hand, the monitoring center 30 is provided with a communication device 31 for receiving the notification from the notification device 21, and a communication device 33 is connected to the communication device 31. The content of the notification received by the communication device 31 is the monitoring computer 32.
The abnormal state is stored in the storage device 34 and displayed on the display device 35 so that the content of the abnormality can be discriminated. The monitoring computer 32 also includes an operation unit 36 for remotely operating the elevator control device via the communication device 31, the notification device 21, and the abnormality detection device 20, and a printing device 37 for printing the content of the notification and the history of the operation. ing.

A communication device 9 provided in the car 1 via a telephone cable 14 and a communication device 33 via a communication device in the monitoring center are connected to the notification device 21. Calls can be made between passengers and staff at the monitoring center.

Next, the operation at the time of occurrence of a confinement accident in the present embodiment configured as described above will be described with reference to FIGS. 1 and 2. FIG. 2 is a flowchart showing the operation of the present embodiment.

When the contact point of the safety device operates while the elevator is traveling, the abnormality detection device 20 which detects the contact point gives an emergency stop command to the elevator control device 11 to stop the elevator in an emergency. At this time, if the stop position of the car 1 is outside the door open zone, the door 1a does not open, and if there are passengers in the car, the inter-floor confinement failure state shown in step 100 of FIG. Here, the abnormality detection device 20 is
The operation state of the contact point of the safety device in the elevator control device 11 is read, and the operation is started according to the flowchart of FIG.

First, in the determination processing of step 101, it is determined whether or not the cause of the emergency stop of the elevator is the door closing detection switch 8 of the car 1 being opened. As a result, when the cause of the emergency stop is not due to the opening of the door close detection switch 8, that is, when the contact point of the safety device that is determined to be unable to travel, for example, the overspeed switch of the governor is operating, Since the rescue operation is impossible, the abnormality detection device 20 moves the process to step 201. In this case, the abnormality detection device 20 notifies the content of the abnormal state to the monitoring center 30 via the notification device 21, and after the monitoring center staff member confirms the content of the abnormal state on the display device 35, dispatches a specialist engineer to the site. And rescue passengers in the car 1.

On the other hand, in the determination processing of step 101, when the cause of the emergency stop of the elevator is only because the door closing detection switch 8 of the car 1 is opened, the abnormality detection device proceeds to the processing of step 102. Here, since the car stops outside the door zone and the door close detection switch 8 is opened, the elevator control device 11 outputs a door close command to the door drive device 6 so as not to open the door 1a. In step 102, a door stop command is output to cancel the door close command for a predetermined time and stop the door 1a. Generally, the reason why the door 1a is opened and stopped while the elevator is traveling is that the contact pressure of the door closing detection switch contact is reduced by pinching clothes or an umbrella tip on the door 1a at the time of departure, and the contact is caused by traveling vibration. Is a circuit, so that the passengers can use the door 1
The possibility of removing the obstacle sandwiched by a increases. Here, the predetermined time is a time for easily pulling out the obstacle sandwiched by the door 1a, for example, about 1 to 2 seconds. Next, at step 103, the abnormality detection device 20 outputs a door closing command again to the elevator control device 11 to output the door 1a.
Command to close the.

Next, in step 104, the abnormality detection device
The opening dimension of the door 1a is measured from the signal from the door position detection device 7, and it is determined whether the measured value is less than or equal to a predetermined value. Here, the predetermined value is a range where the passengers are not in danger of falling into the hoistway while performing rescue operation at low speed, that is, a range where a part of their body such as hands cannot be taken out of the car. . If the measured value exceeds the predetermined value, it is determined that the risk of rescue operation is high, and the process proceeds to step 201, and the abnormality detection device 20 monitors the content of the abnormal state via the notification device 21 to the monitoring center 30. To the monitoring center personnel after confirming the contents of the abnormal state on the display device 35,
A specialist engineer is dispatched to the site to rescue passengers in the car 1. Alternatively, at this time, by using the communication device 9 in the car 1 and the communication device of the monitoring center, the staff of the monitoring center
It is also possible to request the rescue operation command from the operation unit 36 in the monitoring center 30 by remote control after requesting the passengers for the status of the inner door 1a and eliminating the factor that obstructs the closing of the door.

When the measured value is less than or equal to the predetermined value, it is determined that the risk of rescue operation is small, and the process proceeds to step 105, where the abnormality detection device 20 performs the door closing operation to the elevator control device 11. A command is output to perform a rescue operation at low speed, the electric motor control device 10 is controlled to a low speed operation, and the door drive device 6 is operated to perform a rescue operation to the nearest floor.

During this rescue operation, the abnormality detecting device 20 continues to measure the opening dimension of the door 1a (step 105).
a) When the opening size of the door 1a becomes equal to or smaller than a predetermined value, the abnormality detection device 20 gives an emergency stop command to the elevator control device 11 to stop the elevator in an emergency, and returns to step 100 again to determine whether the rescue operation is possible. To judge.

After arriving at the nearest floor by the rescue operation (step 106), the door 1a is opened to rescue the passengers and the car 1 (not shown) is turned off and the car 1 is temporarily stopped (step 106a). Next, in step 107, the door driving device 6 is operated to output a door closing command, and then step 10
At 8, the abnormality detection device 20 tests whether the door close detection switch 8 is closed. As a result, if the door closing detection switch 8 cannot be closed again, it is difficult to continue the normal operation. Therefore, the process shifts to step 201, the abnormality is notified to the monitoring center, and thereafter the failure is dealt with in the monitoring center. . On the other hand, when the door close detection switch 8 can be closed, it is stored that there is a history of the abnormality of the door close switch 8 in the abnormality detection device 20 (step 109), and the normal operation is restored (step 110). . The history of the abnormality of the door closing switch 8 is the abnormality detection device 20 at regular intervals.
Is transmitted from the monitoring center 30 to the monitoring center 30, and a specialist engineer will perform a precise inspection at the time of the subsequent periodic inspection.

As described above, the elevator rescue operation device of this embodiment is provided with the elevator operation control device 11 for controlling the elevation of the car 1, the abnormality detection device 20 for detecting an abnormality of the elevator, and the communication line 22. While transmitting the abnormality occurrence information detected by the abnormality detecting device 20 to the monitoring center 30 which remotely monitors the abnormality of a plurality of elevators,
Abnormality detection in an elevator rescue operation device including a communication device 9 provided in the car 1 and an elevator operation control device 11 that rescues passengers trapped in the car 1 due to a failure from the monitoring center 30 to the elevator operation control device 11. The degree of rescue risk is judged from the abnormality detected by the device 20, and when the rescue risk is high, the monitoring center 30 is notified, and when the rescue risk is low, the rescue operation device is activated. However, the rescue operation of the car 1 is performed.

According to this embodiment, when the car door stop detection switch contacts are opened, the car stops between floors, and the passengers are trapped in the car, the car door closing operation is canceled once. Since this is done, it is possible to easily remove, for example, the tip of an umbrella or clothing caught in the door.

[0023]

According to the present invention, an abnormal condition is detected, and whether or not the rescue operation is performed is determined based on the magnitude of the rescue risk, and when it is determined that the rescue risk is low. The passengers trapped in the car can be safely and quickly rescued without going through the monitoring center, and the burden on the monitoring center can be reduced.

[Brief description of drawings]

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

FIG. 2 is a flowchart showing the operation of the rescue operation device for an elevator according to the embodiment of the present invention.

[Explanation of symbols]

 1 car 6 door drive device 7 door position detection device 8 door closing detection switch 9 communication device 10 electric motor control device 11 elevator operation control device 20 abnormality detection device 21 notification device 30 monitoring center

Front page continuation (72) Inventor Yuichi Hara 1-6 Kandanishikicho, Chiyoda-ku, Tokyo Inside Hitachi Building System Service Co., Ltd.

Claims (2)

[Claims] 1. An elevator operation control device for controlling the elevation of a car, an abnormality detection device for detecting an abnormality of an elevator, and abnormality occurrence information detected by the abnormality detection device for abnormality of a plurality of elevators via a communication line. To a monitoring center that remotely monitors the communication device, and a communication device that enables communication between the communication device provided in the car and the monitoring center, and the monitoring center installed in the elevator operation control device from the monitoring center. In an elevator rescue operation device including a rescue operation device that rescues passengers trapped in a car, a risk determination unit that determines the risk of rescue from the abnormality content detected by the abnormality detection device, and this risk degree An rescue operation device for an elevator, comprising: rescue operation selecting means for selecting whether or not to perform the rescue operation based on the determination result of the determining means. 2. The rescue operation device for an elevator according to claim 1, wherein the risk determination means is a detection position of a door position detection device that detects a position of a car door provided in the car.