JP2628612B2 - Elevator intercom - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator communication device, and more particularly to an elevator suitable for efficiently performing a communication check between a communication device in a car and a monitoring center. It relates to a communication device.

[Conventional technology]

Generally, in the case of an elevator communication device, for example, when a passenger is trapped in a car due to a failure of an elevator installed in a building or the like, when the passenger manually operates the talk button of the in-car communication device, the same building is used. The terminal device detects the operation of the operation button and automatically notifies the monitoring center via the telephone line, and as a result, the intercom in the car is connected to the monitoring center, so that the passengers in the car can be monitored. They talk to the center controller about the situation.

In the thus configured elevator communication device, it is required that the communication function between the in-car communication device and the monitoring center is always normal. Therefore, the communication function is periodically performed, for example, for one month. It is usual to check once every two days. For this reason, in particular, as the number of intercom units installed in the car increases, the number of calls processed for checking the call function at the monitoring center increases, and call requests are concentrated at the monitoring center at one time. Was. In such a case, it is extremely difficult to respond to the abnormality report, which is the primary task of the monitoring center. Therefore, it is necessary to increase the number of response devices and controllers on the monitoring center side in order to respond to concentrated call requests.

As a means for solving such a problem, for example, an abnormal response device that responds to an abnormality report to a monitoring center and an inspection response device that responds to a call inspection request are provided, respectively. In some cases, a call inspection switch is provided to switch to an inspection mode for communicating with the device.
In such an elevator communication device, the maintenance staff operates the communication inspection switch to switch the terminal device to the inspection mode, and makes a call between the in-car communication device and the inspection response device. After the call check, the call check switch is operated again to return the terminal device to a normal state. However,
In some cases, the reset operation for returning the call inspection switch to the normal state may be forgotten.In such a case, when a call signal is output from the call device of the car, an abnormality report from the terminal device is transmitted to the inspection response device. That is, there is a problem that the abnormality notification is not made to the abnormality response device.

Therefore, conventionally, as described in Japanese Patent Application No. 1-150391, for example, there has been proposed an elevator communication device provided with a non-return canceling device for automatically resetting a call inspection switch.
For this elevator communication device, after finishing the call inspection report in the inspection mode, the mode setting status by the call inspection switch is detected, and if the mode is switched to the inspection mode, the device is automatically reset by the unreturn release device. The call inspection switch is reset to return from the inspection mode to the normal monitoring mode.

[Problems to be solved by the invention]

By the way, in the conventional elevator communication device described above,
The method of returning from the inspection mode to the normal monitoring mode is to reset the call inspection switch automatically after the end of the call inspection report by the non-return release device, or perform manual operation to return the call inspection switch by maintenance personnel. There are only two types. Therefore, before the maintenance staff sets the inspection mode by operating the call inspection switch and performs the call inspection work, there is a case where work other than the call inspection is performed, for example, repair of an elevator failure, etc. If you need to explain something to the elevator owner etc. during the operation and interrupt the work,
In order to return from the inspection mode to the normal monitoring mode, there is a problem that the maintenance staff must go to the installation location of the call inspection switch each time.

Also, if the call inspection report is not completed normally due to a failure of the telephone in the car, a failure of the telephone line, or a failure of the inspection response device of the monitoring center after the call inspection work is completed, the same as the above case In order to return from the inspection mode to the normal monitoring mode, it is necessary for the maintenance staff to go to the place where the call inspection switch is installed.

The present invention has been made in view of such circumstances in the prior art, and an object thereof is to provide an elevator capable of automatically returning a terminal device to a normal monitoring mode without requiring a reset operation by maintenance personnel. To provide a communication device.

[Means for solving the problem]

In order to achieve this object, the present invention provides a telephone set provided in a car and having a call button for outputting a call signal, and mode switching means capable of switching from a normal monitoring mode to a check mode during a check call. A terminal device for transmitting one of a supervisory call signal and a check call signal via a telephone line in response to the call signal, an abnormal response device responding to the monitor call signal, and responding to the check call signal A monitoring center having an inspection response device to perform, the terminal device, after switching from the monitoring mode to the inspection mode by the mode switching means, a timer that outputs an output signal after a predetermined time, A first reset command for outputting a first reset command for returning to the monitoring mode to the mode switching means in response to the output of the output signal. A reset command means for outputting to the mode switching means a second reset command for returning to the monitoring mode in response to the output of the inspection call signal when the mode is switched to the inspection mode. Is provided.

(Operation)

Since the present invention is configured as described above, when performing a call check, if the mode is switched to the check mode by the mode switching means of the terminal device, the timer starts counting operation. In this state, if a predetermined time elapses without a calling signal being output from the telephone in the car, the timer outputs an output signal. Then, in response to the output signal, the first reset command means outputs the first reset command to the mode switching means, so that the terminal device is switched to the normal monitoring mode by the mode switching means.

On the other hand, before the above timer ends the counting operation,
When a call signal is output from the telephone in the car, the terminal device transmits an inspection call signal to the monitoring center via a telephone line in response to the call signal, and the monitoring call is sent to the monitoring center by the inspection response device at the monitoring center. Respond to signals. And
The second reset command means outputs the second reset command to the mode switching means in response to the output of the above-mentioned inspection call signal, so that the terminal device is switched to the normal monitoring mode by the mode switching means.

Thus, the terminal device can be automatically returned to the normal monitoring mode without requiring a reset operation by maintenance personnel.

〔Example〕

Hereinafter, an embodiment of the elevator communication apparatus of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the elevator communication device of the present invention, and FIG. 2 is a flowchart showing a processing procedure of the elevator communication device of FIG.

The elevator communication apparatus of the present embodiment shown in FIG. 1 is installed in a car 2 installed in a car 1 and in an elevator machine room in a building where the car 1 is installed, or in a manager's room. It comprises a terminal device 3 for making an automatic report in response to a call signal output from the device 2, a monitoring center 5 for monitoring the terminal device 3 via a telephone line 4, and the like.

The above-described telephone 2 includes a transmitter / receiver 6 for transmitting / receiving a call,
A call button 7 for outputting a call signal.

The terminal device 3 includes a switching switch 11 for switching an information transmission path from the handset 2 and a switching switch for switching the information transmission path.
A monitoring call signal generation device 12 connected to one of the switching terminals 11a of 11 to generate a monitoring call signal, and the other switching terminal
11b, which is connected to these call signal generators 12 and 13 for generating a check call signal, and is connected to these call signal generators 12 and 13 to automatically dial via the telephone line 4 to issue a report to the monitoring center 5. Alarm device 14 and inspection call signal generation device
A control device 15 connected to the control device 13; a timer 15a built in the control device 15 and outputting an output signal after a predetermined time, for example, 15 seconds; and a call inspection switch 16 connected to the control device 15. ing. The above-mentioned switching switch 11 constitutes a mode switching means capable of switching from the normal monitoring mode to the inspection normal inspection mode. First reset command means for outputting to the switch 11 a first reset command for returning to the monitoring mode in response to the output signal by the control device 15;
A second reset command means for outputting a second reset command for returning to the monitoring mode to the switch 11 in accordance with the output of the inspection call signal is provided.

The above-described monitoring center 5 includes an abnormal response device 20 that responds to the supervisory call signal transmitted from the terminal device 3 and an inspection response device 21 that responds to the inspection call signal.

In this embodiment, a telephone call when an abnormality occurs or a telephone call for inspection is performed according to the processing procedure shown in FIG. That is, first, when a call is made in the normal monitoring mode, since the call check switch 16 of the terminal device 3 is kept OFF in step S1, the switching switch 1
1 is set on the switching terminal 11a side in a normal state. At this time, as step S2, the call button 7 of the talker 2 in the car 1
Is turned on, the call signal output from the call button 7 is transmitted to the monitoring call signal generation device 12 through the switching terminal 11a of the switching switch 11, so that the monitoring call signal generation device 12 Creates a supervisory call signal and issues an alert
Output to 14. Next, in step S4, the alarm device 14 checks the monitoring call signal, and then checks the monitoring center 5 via the telephone line 4.
Dialing is performed to the abnormal response device 20 and a monitoring call signal is transmitted. When the abnormal response device 20 receives the monitoring call signal, the abnormal response device 20 returns an acknowledgment signal to the terminal device 3 in step S5. In response to the acknowledgment signal, the terminal device 3 connects the telephone set 2 and the abnormal response device 20, and in step S6, the passengers in the car 1 and the controller of the monitoring center 5 talk. Thereafter, upon termination of the call, when a termination signal is output from the abnormal response device 20 in step S7, the terminal device 3 releases the connection state between the telephone 2 and the abnormal response device 20.

Also, when performing a call check in the check mode, first perform step S1
When the maintenance staff manually operates the call inspection switch 16,
In step S8, the control device 15 operates to switch the switching switch 11 from the switching terminal 11a to the switching terminal 11b, and to start the counting operation of the timer 15a. If the call button 7 of the telephone 2 is turned on as a step S10 within a predetermined time, for example, 15 minutes after the start of the counting, the call signal output from the call button 7 is transmitted via the switching terminal 11b of the switching switch 11. In step S11, the inspection call signal creation device 13 creates an inspection call signal and outputs it to the alarm device 14, and outputs an inspection mode release signal to the control device 15 in step S11. In step S12, the control device 15 resets the timer 15a, and switches the switching switch 11 from the switching terminal 11a to the switching terminal 11b. Next, as described above, the processes in steps S5 to S7 are performed as in the case of the normal monitoring mode, and a call check is performed between the telephone 2 and the check response device 21.

On the other hand, if the call button 7 of the telephone 2 is not operated within the predetermined time, the timer 15a ends the count operation and outputs an output signal in step S9, and in step S14, the control device 15 switches the switching switch 11 to the switching terminal 11b. Is switched to the switching terminal 11a side, that is, the terminal device 3 is returned from the inspection mode to the normal monitoring mode.

In the embodiment configured as described above, the switching device 11 can be automatically switched from the switching terminal 11b to the 11a side in response to the operation of the inspection call signal creating device 13 and the end of the count of the timer 15a. It is possible to automatically return the terminal device 3 from the inspection mode to the normal monitoring mode without resetting the call inspection switch 16 of the terminal device 3 by the worker.

[Effects of the Invention] Since the present invention is configured as described above, it is possible to automatically return the terminal device from the inspection mode to the normal monitoring mode without requiring a reset operation by maintenance personnel. Even if the maintenance staff forgets to perform the reset operation after the end of the call inspection, the normal monitoring state can be reliably restored. Also, since there is no need for the maintenance staff to go to the terminal device where the call inspection switch is provided,
As compared with the conventional one which requires a reset operation of the call inspection switch, there is an effect that the working efficiency is improved and the working cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of the elevator communication device of the present invention, and FIG. 2 is a flowchart showing a processing procedure of the elevator communication device of FIG. 1 ... car, 2 ... telephone, 3 ... terminal, 4 ...
... telephone line, 5 ... monitoring center, 7 ... call button, 11 ...
Switcher (mode switching means), 15 ... Control device (reset command means), 15a ... Timer, 16 ... Talk inspection switch, 20 ... Abnormal response device, 21 ... Inspection response device.

Claims (1)

(57) [Claims] 1. A calling device which is installed in a car and has a call button for outputting a call signal, and mode switching means for switching from a normal monitoring mode to an inspection mode during an inspection call. A terminal for transmitting one of the supervisory call signal and the inspection call signal via the telephone line in response to the signal, an abnormal response device responding to the supervisory call signal, and an inspection response device responding to the inspection call signal In an elevator communication device having a monitoring center, the terminal device switches from the monitoring mode to the inspection mode by the mode switching means, and then outputs a timer after a predetermined time, and a timer for outputting the output signal. A first reset command means for outputting a first reset command for returning to the monitoring mode to the mode switching means, When it is switched to the test mode,
An elevator communication device, further comprising second reset command means for outputting a second reset command for returning to the monitoring mode to the mode switching means in response to the output of the inspection call signal.