JP2728149B2 - Elevator notification device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator notification device and, more particularly, to an elevator notification device for notifying an unrecovered state after an earthquake.

[0002]

2. Description of the Related Art In an elevator, if an earthquake exceeding a predetermined seismic intensity occurs during operation, it is dangerous to cause an accident such as a collision of a car with a counterweight, so that the elevator is installed in a building where the elevator is installed. An earthquake sensor is installed, and an elevator is equipped with an abnormal control circuit. When the earthquake sensor detects an earthquake of a predetermined seismic intensity or higher, the car is guided to the nearest floor by the abnormal control circuit and the operation stops. I have to. In this way, when an earthquake of a predetermined seismic intensity or more occurs and the car stops on the nearest floor and enters an operation stop state, the manager of the building where the elevator is installed will notify the elevator maintenance company that the elevator has The operator is notified that the operation has been suspended, and a specialist is dispatched to the building from the maintenance company based on the notification. Then, the dispatched technician checks the elevator, and after confirming that there is no abnormality, the operation of the elevator is restarted.

However, the effects of an earthquake usually cover a relatively large area, and when an earthquake of a certain magnitude or more occurs, a considerable number of elevators are shut down. For this reason, many building managers concentrated on requesting the dispatch of specialists to elevator maintenance companies, and a limited number of specialists could perform all restoration work in a short time. However, the restoration work takes a long time, and during this time, the service of the business for the elevator user is reduced.

To cope with such a situation, Japanese Patent Laid-Open No.
According to Japanese Unexamined Patent Publication No. 3-55698, when an elevator is shut down due to the occurrence of an earthquake, an abnormality is notified via a communication line to a monitoring center that remotely monitors the elevators of a large number of buildings. A monitoring device is disclosed in which, if the abnormal situation of operation stop is not recovered even after a lapse of time, a display device constantly monitored by an operator of the monitoring center displays an indication that the elevator of the building has not been recovered. According to this monitoring device, the operator of the monitoring center can clearly grasp the unrecovered elevator on the display device, and dispatches a specialized technician directly from the monitoring center to a building that has been in an unrecovered state for a long time. And other means.

[0005]

However, in the monitoring apparatus according to the above-mentioned disclosure, an abnormality is notified to the monitoring center via the communication line when an earthquake of a predetermined seismic intensity or more occurs.
When an earthquake occurs in a relatively large area, a large number of reports are sent at the same time, and the traffic on the communication lines suddenly increases, congesting the communication lines, and the time required for sending a report is greatly increased. Will be extended. For this reason, the operator of the monitoring center cannot accurately grasp the state of the unrecovered equipment on the display device, cannot take an optimal action according to the degree of unrecovery, and cannot recover the unrecovered equipment. There is also a risk that the elevator will remain.

The present invention has been made in view of the current situation of such an elevator notification device as described above, and its purpose is to allow an operator of a monitoring center to display the status of an unrecovered elevator after an earthquake on a display device. It is an object of the present invention to provide an elevator notification device that can be accurately grasped by the user.

[0007]

SUMMARY OF THE INVENTION It is an object of the present invention to detect the operation of a seismic sensor provided in a building where an elevator is installed, to place the elevator car on the nearest floor and to suspend operation. provided an elevator having an abnormality control circuit for outputting a stall signal Te, the a timer to start in pause signal, when Oite the pause signal is an output state at time-out of a predetermined time of the timer, the communication line having a alarm circuit which performs notification of the unrestored the elevator to the monitoring center to remotely monitored via
Is achieved by

[0008]

[Function] When an earthquake of a predetermined seismic intensity or more occurs and the earthquake detector is activated, the abnormality control circuit detects this and activates, and the elevator car is landed on the nearest floor to suspend operation, and abnormal control is performed. A stop signal is output from the circuit, and based on the stop signal, an operation stop is displayed in, for example, a car or an elevator platform. In response to the pause signal, the timer of the notification device starts counting. If the pause signal is still output when the timer has counted a predetermined time, the notification circuit of the notification device transmits the signal via the communication line. A monitoring center that remotely monitors the elevator is notified that the elevator is in an unrecovered state.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings (FIGS. 1 and 2). FIG. 1 is a circuit diagram showing a configuration of a main part of an emergency control device of an elevator in which a notification device according to the embodiment is incorporated and which is disposed in a building where the elevator is installed. FIG. 2 is a notification device according to the embodiment. 1 is a block diagram showing a configuration of a monitoring system including an emergency control device for an elevator in which the elevator is installed and a monitoring center remotely arranged for a building in which the elevator is installed. In FIG. 2, reference numeral 9 denotes an elevator emergency control device provided with the notification device of the embodiment. The emergency control device 9 includes a signal input circuit 9a to which signals from an elevator control device (not shown) and various sensors are input. A control circuit 9b to which the signal input circuit 9a is connected and an alarm circuit 8 to which the control circuit 9b is connected are provided. On the other hand, reference numeral 7 denotes a monitoring center which is remotely disposed with respect to the building where the elevator is installed. The monitoring center 7 includes a communication circuit 7a and a control circuit 7b to which the communication circuit 7a is connected. The communication circuit 7a of the monitoring center 7 and the alarm circuit 8 of the emergency control device 9 are connected to each other via the communication line 6.

As shown in FIG. 1, between the DC power supply terminals P and N of the emergency control device 9, an earthquake sensor 1 and an earthquake sensing relay 2 are connected.
Is connected in parallel with the normally connected contact 2a of the earthquake sensing relay 2 and the series connected circuit of the nearest floor command circuit 3. Similarly, between the DC power supply terminals P and N, a normally open contact 3a of the nearest floor landing instruction circuit 3, a normally open contact 4a that closes when the car arrives on the floor, and a pause instruction circuit 5 are serially connected to each other. The normally open contacts 4a are connected to normally open contacts 4b, 4c... 4n in parallel with each other.
A normally connected contact 5a of the stop command circuit 5 and a series connection circuit of the timer T, a normally open contact 5b of the stop command circuit 5, a normally open contact Ta of the timer T, and an alarm circuit 8 are provided between the DC power supply terminals P and N. Are connected in parallel with each other.

In FIG. 1, a series connection circuit of an earthquake sensor 1 and an earthquake detection relay 2, a series connection circuit of a normally open contact 2a and a nearest floor landing command circuit 3, and a normally open contact 3a,
A circuit portion composed of a series connection circuit of the normally open contacts 4a to 4n and the pause command circuit 5 connected in parallel with each other corresponds to the abnormality control circuit of the present invention. Also, normally open contact 5a
A circuit portion composed of a series connection circuit of the timer T and a series connection circuit of the normally open contact 5b, the normally open contact Ta and the alarm circuit 8 corresponds to the notification device of the present invention.

Next, the operation of the elevator equipped with the notification device of the embodiment when an earthquake occurs will be described.

When an earthquake of a predetermined seismic intensity or more occurs in an area where a building in which an elevator is installed is located, the earthquake detector 1 detects the earthquake and outputs a sensing signal. 2 is energized. When the earthquake sensing relay 2 is energized, the normally open contact 2a is closed, and the DC power supply terminal P, the normally open contact 2a,
Since the nearest floor landing command circuit 3 and the DC power supply terminal N form a closed circuit, the nearest floor landing command circuit 3 is activated and outputs a landing command signal. Accordingly, the normally open contact 3a is closed.

The elevator car is guided to the nearest floor by a landing command signal from the nearest floor landing command circuit 3, and is normally opened when the car lands on the nearest floor m. While the contact 4m is closed and the car is stopped on the m floor, the elevator is in the operation stop state. At this time, since the normally open contacts 3a and 4m are closed, a closed circuit is formed by the DC power supply terminal P, the normally open contact 3a, the normally open contact 4m, the pause command circuit 5, and the DC power terminal N, and the pause command circuit 5 Is turned on, and outputs a stop command signal. The stop command signal closes the normally open contacts 5a and 5b and displays an indication in the car and at the elevator landing that the elevator is in the operation stop state. Is performed, and a notification of the elevator operation suspension is sent to the management room of the building where the elevator is installed.
Based on the notification, the manager of the control room requests the elevator maintenance company to recover the elevator that has been shut down due to the earthquake, and the maintenance company that has received the request arranges the dispatch of a specialist engineer. .

On the other hand, when the normally open contact 5a is closed by the stop command signal from the stop command circuit 5 as described above,
A closed circuit is formed by the DC power supply terminal P, the normally open contact 5a, the timer T, and the DC power supply terminal N, and the timer T starts measuring a predetermined time (for example, 2 hours). When the preset time, for example, two hours, elapses, the timer T outputs a timing completion signal, and the normally open contact Ta is closed by the timing completion signal. At this time, the elevator repair work by the maintenance engineer has not been performed yet, and the elevator is in the halt state, the halt instruction signal is output from the halt instruction circuit 5, and the normally open contact 5b
Is closed, a closed circuit is formed by the DC power supply terminal P, the normally open contact 5b, the normally open contact Ta, the alarm circuit 8, and the DC power supply terminal N. Therefore, when the alarm circuit 8 is activated, an unrecovered signal is transmitted from the alarm circuit 8 to the communication circuit 7a of the monitoring center 7 via the communication line 6 shown in FIG. As a result, the control circuit 7b is activated, and a display (not shown) displays the name and location of the building in which the elevator in an unrecovered state is installed even if a predetermined time (2 hours) has elapsed after the occurrence of the earthquake. Is displayed. Therefore, the observer of the monitoring center 7 can check the building information displayed on the display after a lapse of a predetermined time from the occurrence of the earthquake to accurately grasp the building where the unrecovered elevator is located. Take measures to prevent a decrease in elevator operation service, such as by dispatching a specialist engineer directly from the center. When the restoration work of the elevator is completed when the timer T completes counting,
Since the pause command signal is not output from the pause command circuit 5, the normally open contact 5b is open and the alarm circuit 8 does not enter the operating state.

As described above, according to the notification device of the embodiment, the elevator which has not been restored after the occurrence of the earthquake having the seismic intensity equal to or greater than the predetermined seismic intensity is considered to be almost completed after the restoration work of the elevator which has been brought into the suspension state is almost completed. An unrecovered message is sent from a certain building to the monitoring center 7. At this time, since the communication volume of the communication line 6 is reduced, the transmission is reliably performed, and the monitor of the monitoring center 7 grasps the accurate unrecovered information on the display and takes an appropriate action. Accordingly, a recovery operation without omission of recovery can be performed.

[0017]

According to the present invention described above, according to the present invention, abnormal control and a timer to start in pause signal output from the circuit, if Oite pause signal upon time-out of a predetermined time of the timer is output state in, since the chromatic and alarm circuit for performing notification of unrestored elevator to the monitoring center for remotely monitoring through a communication line, immediately after the earthquake monitoring center
Through the communication line after the high traffic time zone of the communication line
To ensure the signal amount is small hours accurate can grasp the unrestored information prevents a reduction in the operation service of the elevator, with no recovery leakage treatment can Turkey.

[Brief description of the drawings]

FIG. 1 is a circuit diagram illustrating a configuration of a main part of an elevator emergency control device in which a notification device according to an embodiment of the present invention is incorporated.

FIG. 2 is a block diagram showing a configuration of a monitoring system including an elevator emergency control device and a monitoring center in which a notification device according to one embodiment of the present invention is incorporated.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Earthquake detector 2 Earthquake sensing relay 3 Nearest floor landing command circuit 5 Pause command circuit 6 Communication line 7 Monitoring center 8 Alarm circuit 9 Emergency control device T timer

Claims (1)

(57) [Claims] 1. Abnormal control for detecting the operation of an earthquake sensor provided in a building in which an elevator is installed, landing the elevator car on the nearest floor, placing the car in a suspended state, and outputting a suspension signal. provided an elevator provided with a circuit, and a timer to start in the pause signal, when Oite the pause signal when time-out of a predetermined time of the timer is the output state, remotely the elevator via the communication line notification apparatus elevators and a alarm circuit for performing notification of unrestored the monitoring center that monitors the.