JPH01281275A - Intercommunication device for elevator cage - Google Patents

Abstract

PURPOSE:To prevent the work of a management center from being obstructed by operating an intercommunication device in an elevator cage, separating the connection with a communication device of the management center, and connecting it to another answer device to check the communication device. CONSTITUTION:When a maintenance crew turns on a maintenance inspection switch 8 in a cage, a building terminal T detects that it is an elevator inspection. Subsequently, when a starting switch 2 of a communication device 1 is pressed, a signal is sent to an audible device 6 through a communication device call detector 5. The audible device 6 sends a signal to a control device 21 of a center device 20 through a telephone line 7 together with an inspection signal by the inspection switch 8. The control device 21 detects the inspection signal among sent signals and connects a switching device 22 to an inspection communication device 24 to answer. The answer can be replaced by mechanical answer by the use of a tape recorder. Thus, the condition of the communication device can be easily inspected without any obstacle to the essential business of a management center and without the need of increasing the number of foreman.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a communication device in an elevator car, and more particularly to an in-elevator communication device suitable for inspecting the communication device.

[Conventional technology]

FIG. 2 shows a block diagram of a conventional elevator car communication device. In FIG. 2, T, ~T,.

is the building terminal, ■ is the elevator car communication device, 2 is the start switch of the communication device 1, 3 is the transmitter of the communication device 1, 4 is the receiver of the communication device 1, 5 is the call detector of the communication device 1, and 6 is the call detector of the communication device 1. The alarm device 10 of the building terminals T and -T is a center device. The center device 10 has building terminals T1 to T1 and a telephone line 7.
connected via. 11 is a center side communication device.

Conventionally, a center device 10 and a communication device 1 in an elevator car
The inspection worked as follows. When a maintenance worker presses the start switch 2 of the communication device 1, a signal that the start switch 2 has been pressed is sent to the alarm device 6 via the call detector 5 of the communication device 1 in the building terminal T1, and the alarm device 6 transmits necessary information to a predetermined center device 10 via telephone line 7.
Send via. On the other hand, the processing device in the center device 10 recognizes that the call request is from the building terminal 'F1 based on the received information, and sends the call request to the call device 1 via the telephone line 7.
This enables communication between the transmitter 3 and handset 4 of the center side communication device 11. This enabled a conversation between the maintenance personnel of the communication device 1 and the center manager of the center-side communication device 11, and through this conversation, the communication device 1 was determined to be normal and the inspection was completed.

[Problem to be solved by the invention]

Due to its nature, the communication function between the elevator car communication device 1 and the center device 10 is inspected periodically, for example, once a month. Therefore,
When the number of building terminals T, -T, , increases, the center device 1
The frequency of call inspections that are processed at 0 may increase and may be concentrated at one time. In this case, there is a problem in that the center device 10 side has to increase the number of center side communication devices 11 and corresponding center managers in order to cope with this. Further, when the above-mentioned call inspections are concentrated at one time, there is a problem that the center device 10 is unable to respond to abnormality notification signals from the building terminals T+ to T7, which is the original function.

The purpose of the present invention is to solve the problems in the above-mentioned prior art,
To provide an elevator in-car communication device that suppresses the increase in the number of specialized managers on the side of a management center device and does not hinder response when an abnormality is reported.

[Means to solve the problem]

In order to achieve the above object, the present invention provides an elevator car communication device in which a communication device in an elevator car is connected to a communication device in a management center device via a telephone line to make a call. Located on the elevator side,
Notification means for notifying that the communication device is being inspected when operated by a maintenance worker; and means for disconnecting the in-car communication device from the communication device of the management center device and connecting it to another response device when the notification device is operated. It is characterized by having the following.

[Effect]

When the notification means notifying that the communication device is inspected is operated by a maintenance worker, the communication device is disconnected from the communication device of the management center device and connected to another response device. The response from this response device may be sent by someone other than a professional administrator, or may be sent by a device that receives a signal from the notification means and emits a sound.

〔Example〕

An embodiment of the present invention will be described below with reference to FIG.

FIG. 1 is a block diagram of an elevator car communication device according to an embodiment of the present invention. Components in FIG. 1 that are the same as those shown in FIG. 2 are designated by the same reference numerals, and their explanation will be omitted.

Reference numeral 8 denotes an elevator maintenance/inspection switch, which is provided within the elevator car, for example, and is operated by a maintenance worker during elevator maintenance/inspection. This maintenance/inspection switch 8 is configured to be inputted to each of the building terminals T1 to T7.

20 is a center device, and a control device 2 of this center device 20
1 is connected to a telephone line 7. Reference numeral 22 denotes a switching device, which is switched by a command from the control device 21 when the maintenance/inspection switch 8 is activated from the building terminal.

Reference numeral 23 denotes a normal communication device on the center side, which is connected to the contact a side of the switching device 22. Further, 24 is a communication device for inspection, and is connected to the contact side of the switch 22.

Next, the operation of this embodiment will be explained. When the maintenance worker operates the maintenance inspection switch 8, the building terminal T recognizes that the elevator is to be inspected. Next, the maintenance person operates the start switch 2 of the communication device 1. As a result, a signal is sent to the alarm device 6 via the communication device call detector 5 in the building terminal T1,
This alarm device 6, in combination with the previous operation of the inspection switch 8, recognizes that the call is to be issued for an elevator inspection, and at the same time transmits call request information including an inspection signal to the center device 20. .

On the other hand, if the check signal is included in the call request signal received from the building terminal via the telephone line 7, the control device 21 in the center device 20 outputs a command to switch the switch 22 to the contact side. do. As a result, the inspection call device 24 receives the maintenance worker's voice from inside the elevator car, and the attendant responds to this. Since this response is simply a response to the maintenance worker's conversation, the above-mentioned staff member does not need to be a professional manager, and may be anyone who can respond by voice. The maintenance worker listens to the voice from the center device through the handset 4 of the intercom 1 and checks the state of the voice. On the other hand, if a real abnormality occurs rather than a maintenance inspection,
Since no inspection signal is generated, the switching device 22 is connected to side a, and the communication is connected to the center-side communication device 23, where a specialized manager responds, and the same procedure as before is carried out.

In this way, in this embodiment, at the time of inspection, the building terminal side outputs a maintenance inspection signal, the center equipment side identifies this, and
Since the system connects to the inspection telephone device and sends a call to the elevator car telephone device through this telephone device, the center does not need a specialized manager to handle inspections, and therefore the number of vehicles increases. It also eliminates the need for specialized management personnel for maintenance and inspection, which can significantly reduce costs.

In addition, in the description of the above-mentioned embodiment, the switch provided in the elevator car was explained as an example of the maintenance/inspection switch, but the switch is not limited to this and may be used in combination with other switches.

In addition, in the explanation of the above embodiment, an example was explained in which an inspection call device that is answered by a human being is used, but the invention is not limited to this, and an inspection device with a built-in tape recorder is used, and when the switch is activated and connected, the call is automatically made. The recording operation is started automatically, the voice of the maintenance worker is recorded for a predetermined period of time, for example, about IO seconds, and then it is automatically rewound and played back.The maintenance worker can listen to the played voice by opening the telephone receiver and performing maintenance inspections. It may be possible to do so. This would eliminate the need for responders at all, resulting in significant maintenance savings. Note that the inspection device incorporating this tape recorder may be one that only plays back pre-recorded audio when the switching device is activated.

Further, in the above embodiment, the response device is provided in the center device, but it may be provided in another room. or,
A switching device that can switch the telephone lines is provided on the terminal devices T1 to T7, and an answering device is installed in a completely different location, so that during maintenance, the switching device can select the telephone line of the answering device. It's okay.

〔Effect of the invention〕

As described above, in the present invention, when inspecting the in-car communication device, another response device exclusively for inspection is used, so that even a person other than a specialized manager can respond, thereby reducing the need for an increase in the number of managers. Not only can it be suppressed, but it can also be used quickly when an abnormality is reported.
can be dealt with reliably. Furthermore, if a recording and reproducing device is used as a response device, no personnel will be needed for response, and maintenance costs can be significantly reduced.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an elevator car communication device according to an embodiment of the present invention, and FIG. 2 is a block diagram of a conventional elevator car communication device. 1... Car side communication device, 2... Start switch, 3... Transmitter, 4... Receiver, 5... Caller. Detector, 6... Alarm device, 7... Telephone line, 20... Center device, 21... Control device, 22...・Switcher, 23... Center side communication device, 24...
...Inspection call device, T1-T.・・・・・・Building terminal equipment. Figure 1 Figure 2

Claims (2)

[Claims] (1) In an elevator car communication device in which a communication device in an elevator car is connected to a communication device in a management center device via a telephone line to make a call, the communication device is installed on the elevator side and operated by maintenance personnel. and a switching means for disconnecting the in-car communication device from the communication device of the control center device and connecting it to another response device when the notification device is activated. An elevator car communication device characterized by: (2) The elevator ride according to claim 1, wherein the other response device is a response device that mechanically responds to a call from a maintenance worker from the in-car communication device. In-car communication device.