JPH0631141B2 - Elevator control operation device - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to a device for controlling an elevator during an earthquake.

[Background of the Invention]

In the event of an earthquake, it is extremely important to prevent elevator disasters and to return the elevator to normal operation as quickly as possible. Is coming.

This elevator seismometer for control operation is generally installed in the machine room of the elevator on the top floor of the building or in the pit of the elevator hoistway on the bottom floor, and the acceleration of the floor exceeds a certain reference value. When it does, each control operation is performed accordingly.

Conventionally, the control operation of an elevator during an earthquake is known as Japanese Patent Publication No.
As described in Japanese Patent Publication No. 75, the operation level is low,
For example, using two detectors, a first detector of 0.02G and a second detector having a high operation level, for example, 0.2 to 0.4G,
When the first detector operates, all the cars are stopped, and if the second detector does not operate, the elevator operation is automatically restored after a predetermined time after the acceleration falls below a predetermined value. There is that. According to this method, the first detector detects the occurrence of an earthquake early and stops all elevators, so it is possible to improve safety during an earthquake and further damage buildings and elevator equipment. If the second detector, which operates when there is a possibility of occurrence, is not operating, the elevator operation is automatically restored after a predetermined time after the acceleration falls below a predetermined value, so an opportunity for maintenance suspension is provided. It is possible to reduce and improve the service.

However, especially in high-rise buildings, the tail cords, etc. continue to vibrate even after the earthquake, and the duration of the vibrations of the tail cords, etc. varies depending on the magnitude of the earthquake's vibration, the position of the car, etc. It has been found that the conventional method of automatically returning the operation of the elevator after a predetermined time after the value falls below the predetermined value is not suitable for the actual situation.

[Object of the Invention]

An object of the present invention is to reduce the occurrence of disasters during an earthquake even for various vibrations caused by an earthquake, improve safety, and
It is to provide an elevator control operation device capable of improving service.

[Outline of Invention]

A feature of the present invention is that, in an elevator control operation device during an earthquake, the duration of the control operation is changed according to the magnitude of the vibration of the earthquake and the position of the car or the position of the counterweight.

Example of Invention

Hereinafter, the present invention will be described in detail based on illustrated embodiments.

FIG. 1 is a basic configuration diagram of the present invention. Elevator equipment 5
The vibration of the earthquake detected by the earthquake detector 1 attached to is sent to the determination device 3. The car position detected by the car position detecting device 2 is also sent to the determining device 3. The determination device 3 determines the duration T of the control operation according to the position of the car sent from the car position detection device 2 and the magnitude of the earthquake vibration sent from the earthquake detector 1. During this time T, the elevator control device 4 performs the control operation. In addition, R is a rope, W is a counterweight, C is a car, and T is a tail cord.

FIG. 2 is a block diagram showing an embodiment of the present invention. Here, the case of detecting two horizontal directions will be described. However, if another pair of seismic detectors and filters for the vertical direction are prepared, it is possible to detect three directions including the vertical direction.

X-directions, which are installed in the horizontal plane at right angles to each other,
The vibrations of the earthquake detected by the y-direction seismic detectors 1X and 1Y enter the multiplexer 205 through the x-direction and y-direction bypass filters 203 and 204, respectively. Next, it is sent to the A / D converter 206 and converted into a digital signal, and the CPU 207 which is a microprocessor.
And is stored in the input data memory 211. The car position detected by the car position detecting device 3 is detected by the CPU 20 via the PIA 212 which is an input / output device.
Sent to 7. The CPU 207 controls according to the car position sent from the PIA 212, the magnitude of the earthquake vibration stored in the input data memory 211, and the control operation duration table stored in the control operation duration table memory 210. The duration T of the operation is determined, and the control signal is issued from the PIA 212 according to the duration t.
Reference numeral 209 is a program memory.

FIG. 3 is a flow chart showing an example of the operation of this embodiment, and Table 1 is a control operation duration time table. First, read the seismic vibration data from the seismic detector (3
01), the read data is the input data memory 211
(302). It is checked whether the vibration of the earthquake has ended (303). If it has not ended, the process returns to 301, and if it has ended, the position of the car is checked (30).
4). Next, based on the magnitude of the vibration determined from the earthquake data stored in the input data memory 211 and the position of the car, the control operation duration table 1st stored in the control operation duration table memory 210 The duration T of the control operation is determined according to the table (305). further,
Check whether T time has passed after the earthquake (306),
If it has not elapsed, continue the control operation (307),
If the time has passed, it automatically returns (308).

According to the present embodiment, since it can be realized only by adding this device to the circuit relating to the automatic restoration, the application to the existing elevator equipment is easy.

FIG. 4 is a flow chart showing another example of the operation of the embodiment of the present embodiment, which is an example of the case where the determination of the magnitude of the earthquake and the determination of the stop time T are performed during the earthquake. The operation in this case will be described with reference to FIG. First, the earthquake vibration data is read from the earthquake detector (401). The read data is stored in the data memory 211 (40
2). The magnitude of the earthquake is judged from the maximum value of the data read so far (403). It is checked whether or not the magnitude of this earthquake exceeds the range of automatic recovery (404), and if it exceeds, it is stopped after an emergency stop, and maintenance personnel wait for inspection (405). If the automatic recovery range is not exceeded, the position of the car is detected (406), and then the control operation duration stored in the control operation duration table memory 210 is determined from the magnitude of the earthquake and the location of the car. Determine the control operation duration T according to Table 1 (4
07). Next, it is checked whether or not the vibration of the earthquake has ended (408), and if it has not ended, the process returns to 401, and if it has ended, it is checked whether or not T time has elapsed since the end of the vibration of the earthquake (409). If it is determined that the time has not passed, the control operation is continued (410), and if it is determined that the time has passed, the control automatically returns (411).

According to this embodiment, an emergency stop signal when the automatic recovery range is exceeded can also be generated by this device.

〔The invention's effect〕

According to the present invention, it is possible to shorten the elevator stop time due to the occurrence of an earthquake, and it is possible to start the operation of the elevator because vibrations such as tail cords still remain even after a certain time has elapsed after the occurrence of the earthquake. In a dangerous situation, the elevator remains stopped, so even in the case of various vibrations caused by an earthquake, it is possible to reduce the occurrence of disasters at the time of the earthquake and improve safety. Service factories can also be measured.

[Brief description of drawings]

FIG. 1 is a basic configuration diagram of the present invention, FIG. 2 is a block configuration diagram of an embodiment of the present invention, FIG. 3 is a flow chart showing an example of operation of the present embodiment, and FIG. It is a flow chart which shows other examples of operation of an example. 1 ... Earthquake detector, 2 ... Car position detector, 3 ...
... Judgment device, 4 ... Elevator control device, 5 ... Elevator equipment.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Yoshimitsu Onoda 1-6-6 Kandanishiki-cho, Chiyoda-ku, Tokyo, inside Hiritsu Elevator Service Co., Ltd. (56) References JP-A-55-106980 (JP, A) 50-115368 (JP, U)

Claims (1)

[Claims] 1. An earthquake detector, a position detector that detects the position of a car, a determination device that receives detection outputs of the earthquake detector and the position detector, and a control operation signal, and the control operation signal. In an elevator control operation device equipped with an elevator control device that shifts to control operation at the time of earthquake upon receipt of a time limit corresponding to the earthquake detection output of the earthquake detector and the position detection output of the position detector in the determination device. Arranging a memory for control operation duration table for storing information, the determination device, when the earthquake detection output is input, based on the stored contents of the memory for control operation duration table, the earthquake detection output and the An elevator control operation device characterized in that the duration determined by the position detection output is the duration during control operation during an earthquake.