JPH0318571A - Speaking device for elevator - Google Patents

Abstract

PURPOSE:To execute the inspection work for a speaking device by the operation from a monitor center side by sending test signals from the monitor center through a telephone circuit and generating test voice by receiving the test signal on an elevator side and starting a speaking circuit. CONSTITUTION:When an elevator to be tested is selected by a dial button 23, a monitor center side communication device 20 and an elevator side communication device 10 are connected through a subscriber circuit 30, and when a sending test button 33 is pressed, a sending test signal in coded form in a specific push button signal is generated by a push button signal encoder 24, and transmitted to the elevator side communication device 10. The signal is decoded by a push button signal decoder 14, and operates test signal relay 15. An interphone 2 and a voice circuit 12 are connected through a contact point t2, and at the same time, a message for an autoannounce 5 is started through a contact point t1, and voice is collected into the interphone 2 and transmitted to the monitor center.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to an elevator communication device,
In particular, the present invention relates to an elevator communication device that allows direct communication between a car and a remote monitoring center via a telephone line in the event of an emergency.

[Prior Art] FIG. 2 is a block circuit diagram showing a conventional elevator communication device.

In the figure, (1) is the elevator car, (2) is the intercom for calls installed in the car (1), and (3) is the elevator car.
1 is an intercom button that functions as a switch for the intercom (2), and (4) is a canned food state detection contact that is activated when a passenger in the car room (1) is in a so-called canned food state. (10) is the elevator side communication device, (11)
is the intercom button (3) and canned food status detection contact (4)
(12) is the voice circuit on the elevator side, and (13) is the network control circuit that controls the transmission and reception of various signals. (20) is a communication device on the monitoring center side, (21) is an audio circuit on the monitoring center side, and (22) is a communication device on the monitoring center side.
) is a network control circuit that controls the exchange of various signals. (
30) is the network control circuit (
13) and the network control circuit (22) of the monitoring center side communication device (20), (31) receives the signal from the audio circuit (21) of the monitoring center side communication device (20). The working handset (32) is a transmitter that sends an audio signal to the audio circuit (21) of the communication device (20) on the monitoring center side.

A conventional elevator communication device is configured as described above, and when the elevator car (1) is in a locked state, a communication device is used for mutual communication between the inside of the elevator car (1) and the monitoring center. have the means. That is, the structure is such that, for example, in the event that the moving elevator car makes an emergency stop at a position other than the predetermined stopping position due to an elevator malfunction, etc., a call can be made between the car room (1) and the monitoring center. .

With the conventional elevator communication device as described above, it would be difficult to communicate between the inside of the car room (1) and the monitoring center in the event of an emergency, so it is necessary to check whether the elevator communication device is working properly. This is done regularly.

Here, the inspection operation of this elevator communication device will be explained.

First, one inspector gets into the car (1) and presses the intercom button (3), and another inspector operates the control panel to force the car (1) into a canned state. Close the canned food state detection contact (4). In addition, usually the car room (
1) If the passenger is in a canned state, a sensor or the like (not shown) detects this canned state and sets the canned state detection contact (4) to an idle state.

In this canned state, the inspector in the car room (1) presses the intercom button (3), and the elevator side communication device (
The direct talk activation relay (11) of 10) is activated, and the contact di and contact d2 of the direct talk activation relay (11) are both closed, and the intercom (2) becomes ready for communication. Therefore, the voice of the inspector inside the car (1) becomes an audio signal on the intercom (2), and the direct voice activation relay (11)
The signal is input to the audio circuit (12) via the contact d2. In addition, a calling command is applied to the network control circuit (13) through the contact d1, and the network control circuit (13) is activated by the monitoring center side communication device (
20). Then, the audio signal is converted into a transmission signal for transmission over a telephone line in the audio circuit (12), and sent to the monitoring center side via the network control circuit (13) and the subscriber line (30). Monitoring center side communication device (20)
Then, a signal from the elevator side communication device (10) is received, and this signal is converted back into an audio signal by the audio circuit (21) and output to the receiver (31). Thereby, the voice of the inspector inside the car room (1) is transmitted to the monitoring center.

On the other hand, the voice of the supervisor etc. inside the surveillance center is transmitted through the transmitter (32).
It becomes a voice signal, is input to the voice circuit (21), is converted into a transmission signal transmitted by the telephone line, and is sent to the network control circuit (21).
22) and the subscriber line (30) to the elevator side. The elevator side communication device (10) receives a signal from the monitoring center side communication device (20), converts this signal back into an audio signal in the audio circuit (12), and sends the intercom (1) in the car room (1). 2). As a result, the voice of the supervisor, etc. in the monitoring center is transmitted to the inspector in the car room (1).

Through such a series of inspection operations, in this type of elevator communication device, when the elevator car room (1) is in a canned state, a communication means is established for mutual communication between the inside of the elevator car room (1) and the monitoring center. has confirmed that it functions properly.

In addition, emergency notification devices for elevators other than those mentioned above are
This is disclosed in Japanese Patent No. 3-194883, but this document does not disclose the inspection work of the emergency notification device. In addition, a device was developed in 1987-243 to test the elevator's emergency notification system from the installation site during elevator installation.
This is shown in Japanese Patent No. 784.

[Problems to be Solved by the Invention] However, in the conventional elevator communication device as described above, an inspector needs to go to the elevator installation site to inspect the communication device. What's more, he had confirmed that he could actually talk to the supervisor at the monitoring center by turning the car room (1) into a canned state and pressing the intercom button (3) to activate the direct call. Therefore, there is a person who checks whether the communication device is working properly at the monitoring center, a person who enters the car room (1) and operates the intercom (2), and a person who operates the control panel to forcibly control the car. A minimum of three workers were required to can room (1). Furthermore, the location of the elevator and the location of the monitoring center are usually far apart, and inspectors have had to travel to remote locations each time they perform inspection work.

Therefore, the inspection work requires a lot of manpower and time, and the cost required for maintenance and inspection is also large, making it extremely inefficient and uneconomical. Therefore, this improvement has been desired.

Therefore, the object of the present invention is to provide an elevator communication device that allows an inspector to inspect the elevator communication device only by operating from a monitoring center without having to go to the elevator installation site.

[Means for Solving the Problems] An elevator communication device according to the present invention includes a communication means for performing mutual communication between the elevator car interior and a monitoring center via a telephone line in an emergency, and a communication device for reselecting an arbitrary elevator. direct speech test signal generation and transmission means for generating a speech test signal and transmitting the direct speech test signal from the monitoring center side to the elevator via a telephone line;
test call starting means for receiving the direct talk test signal and generating a signal for generating a test sound, and activating a call circuit of the call means; and a ringing by the test sound generation signal. The apparatus is equipped with a sound generating means disposed inside the car.

[Function] The elevator communication device of the present invention has a communication means for performing mutual communication between the elevator car interior and the monitoring center via a telephone line in an emergency, and generates and sends a direct test signal on the monitoring center side. A means selects an arbitrary elevator, generates a direct call test signal, and sends this signal from the monitoring center side to the elevator via a telephone line. On the elevator side, upon receiving this direct speech test signal, the test call activation means generates a voice generation credit for the test and also activates the communication circuit, and this voice signal activates the sound generation means disposed inside the car. Make it ring. Therefore, since the sound from the sounding means is sent back from the car to the monitoring center via the communication means, it is possible to confirm whether or not the communication means is operating normally only by an operation from the monitoring center.

[Embodiment] FIG. 1 is a block circuit diagram showing an elevator communication device which is an embodiment of the present invention. In the figure, (1) to (4
), (10) to (13), (20) to (22), and (30) to (32) are the same or equivalent constituent parts of the above-mentioned conventional example, so duplicate explanations will be omitted here. omitted.

In the figure, (5) is an auto-announcer for broadcasting a predetermined message into the car room (1), and (6) is a speaker that actually generates sound based on the signal from the auto-announcer (5). Both the auto-announcement (5) and the speaker (6) are arranged in the car room (1), and constitute a sounding means that sounds in response to an audio signal.

Note that the sound emitted from this speaker (6) is assumed to be the sound of passengers in the car room (1) in an emergency, and is of a volume that can be collected by the intercom (2). (
14) is a push button signal decoder that decodes a predetermined encoded push button signal, and (15) is a test signal relay activated by the signal from the push button signal decoder (14). (23) is a dial button forming a part of the monitoring center side communication device (20), and this dial button (23) is used to select an arbitrary elevator to be tested by telephone number. (24) is a push-button signal encoder for encoding a direct-talk test signal into a predetermined push-button signal, and (33) is a direct-talk test button for generating a life command for the direct-talk test signal. In addition,
In this elevator communication device, as described in the conventional example, in an emergency such as when the elevator car (1) becomes stuck, mutual communication between the inside of the elevator car (1) and the monitoring center is established. It has a communication means to do this.

Note that the operation of this communication means in an emergency is the same as that of the conventional example, so a description thereof will be omitted here.

The elevator communication device of this embodiment is configured as described above, and is similar to the monitoring center side communication device (20) of the conventional example.
Direct speech test signal generation and transmission means is added to generate a direct speech test signal, select an arbitrary elevator, and transmit the direct speech test signal from the monitoring center side to the elevator via a telephone line. . Furthermore, call activation means is added to the monitoring center side communication device (20) of the conventional example for receiving the direct talk test signal and generating a signal for generating voice, and for activating a call circuit of the communication means. ing. Furthermore, a sounding means that sounds in response to the sound generation signal is disposed within the car (1).

Therefore, in this embodiment, the elevator cab (1)
Checking whether the communication means for mutual communication between the inside and the monitoring center is working properly can be carried out only by operations from the monitoring center side.

This inspection operation will be explained below.

First, the inspector at the monitoring center presses the dial button (23).
By selecting the elevator to be tested in , the monitoring center side communication device (20) and the elevator side communication device (
10) are connected through a predetermined subscriber line (30). Thereafter, by pressing the direct talk test button (33), the pushbutton signal encoder (24) generates a call test signal encoded into a specific pushbutton signal, and this call test signal is transmitted to the subscriber line ( 30) to the elevator side communication device (10). This signal is sent to the elevator side communication device (10) through the push button signal decoder (
14) and activates the test signal relay (15). As a result, contacts t1 and t2 of the test signal relay (15) are both closed, and the intercom (2) and audio circuit (12) are connected via the contact t2, making it possible to make a call using the intercom (2). become a state. At the same time, a specific message preset in the auto-announcement (5) is activated via the contact tl of the test signal relay (15). This auto-announcement (
5), the signal from the speaker (6) to the car compartment (
1) A voice message is issued. This voice message is collected by the intercom (2) and transmitted as voice to the monitoring center via the communication means. That is, the voice message becomes a voice signal at the intercom (2), is input to the voice circuit (12) via the contact t2 of the test signal relay (15), and is converted into a transmission signal for transmission over the telephone line by the voice circuit (12). After conversion, the network control circuit (
13) and the subscriber line (30) to the monitoring center side.

The monitoring center side communication device (20) receives the signal from the elevator side communication device (10), converts this signal back into an audio signal in the audio circuit (21), and outputs it to the receiver (31). Thereby, the voice message in the car room (1) is transmitted to the monitoring center. Then, when the inspector at the monitoring center confirms this voice message via the telephone receiver (31), the inspection work to determine whether the direct speech device is normal or not is completed.

As mentioned above, in this example, the elevator cab (
Car room (1) in case of emergency, such as when 1) is in a canned state.
It has communication means for mutual communication between the center and the monitoring center. Furthermore, the direct talk test signal generation/exit means on the monitoring center side selects an arbitrary elevator, generates a direct talk test signal, and sends this signal from the monitoring center side to the elevator via the telephone line. On the elevator side, upon receiving this direct speech test signal, the test call activation means generates a test voice generation signal and activates a communication circuit, and this voice signal causes the test call activation means to generate a test voice generation signal and activate a communication circuit installed in the car room (1). Make the sounding means ring. Then, the sound from this sounding means is sent back from the car room (1) to the monitoring center via the communication means.

Therefore, in this embodiment, it is possible to confirm whether or not the communication means for mutual communication between the inside of the elevator car (1) and the monitoring center is operating normally only by the operation from the monitoring center side, and as a result, direct communication is possible. Equipment inspection becomes easier. That is, in this embodiment, there is no need for an inspector to go to the elevator installation location every time the communication device is inspected, unlike in the prior art. Moreover, the inspection work can be carried out by only one inspector at the monitoring center, without requiring a plurality of workers as in the past. Therefore, the manpower and time spent on inspection work can be significantly reduced, the burden of costs required for maintenance and inspection work can be reduced, and inspections can be carried out extremely efficiently and economically.

By the way, in the above embodiment, the auto-announcement (5) and the speaker (6) were used as sounding means in the car room (1), but in addition, existing means such as a passing buzzer or BGM could also be used. Good too.

Further, in the above embodiment, a push button signal is used as a means for transmitting the direct speech test signal, but it may also be transmitted using a modulation method such as FSX or PSK.

[Effects of the Invention] As explained above, the elevator communication device of the present invention includes a communication means for mutual communication between the car interior and the monitoring center in an emergency, a direct test signal generation and transmission means on the monitoring center side, and an elevator communication device. It has a test call starting means on the side and a sounding means arranged in the car room, and the signal for the direct talk test 1 generated and sent by the direct talk test signal generation/exit means on the monitoring center side is used to activate the elevator. On the side, the test call activation means generates a voice generation signal for the test and activates a circuit for communication, and this voice generation signal causes a sound generation means installed in the car interior to sound, and the voice from this generation means is activated during the call. It is sent back from the car to the monitoring center via means. Therefore, in the event of an emergency, it is possible to confirm whether or not the communication means for mutual communication between the elevator car and the monitoring center is working properly only by operations from the monitoring center, which simplifies the inspection work of the direct communication device. , the manpower and time spent on inspection work can be significantly reduced, the burden of costs required for maintenance and inspection work can be reduced, and inspections can be carried out extremely efficiently and economically.

14: Push button signal decoder 15: Test signal relay 20: Monitoring center side communication device 24: Push button signal encoder 30: Joined line It is.

Note that in the drawings, the same reference numerals and symbols indicate the same or equivalent parts.

Claims (1)

[Claims] A communication means for communicating between an elevator car interior and a monitoring center via a telephone line in an emergency, selecting an arbitrary elevator, and generating a signal for a direct talk test;
direct speech test signal generation and transmission means for transmitting the direct speech test signal from the monitoring center side to the elevator via a telephone line; and direct speech test signal generation and transmission means for receiving the direct speech test signal from the direct speech test signal generation and transmission means, A test call activation means for generating a signal for generating a voice and activating a communication circuit of the communication means, and a test call activation means disposed in a car interior that makes a sound in response to a test voice generation signal of the test call activation means. What is claimed is: 1. A communication device for an elevator, characterized in that it is equipped with a sounding means.