JPH03200682A - Emergency telephone call device for elevator - Google Patents

Abstract

PURPOSE:To prevent mischief and reduce the loads of a foreman in a monitoring center by providing a means connected to a telephone call device in the monitoring center when a telephone call device in a cage is operated only at the time when an elevator door is closed. CONSTITUTION:When passengers are shut up in a cage, a closed-door state detecting device 3 detects a state where an elevator door is closed, and generates an output signal. Under the conditions, when a passenger operates a calling button, a telephone call device 1 on the cage side is operated to call back a telephone call device 4 in the concierge's room. If no reply signal is provided from the telephone call device 4, an output signal is generated from a NOT element 6, and output signals from the NOT element 6. the closed-door state detecting device 3 and the telephone call device 1 on the cage side, are inputted to an AND element 5. A communication control device 8 is operated by an output signal from the AND element 5 to select a preset telephone number for calling back a monitoring center to perform dialing operation, control a telephone network device 9, and perform operation for calling back a communication device 10 of the monitoring center.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to an improvement in a notification device that communicates between the inside of an elevator car and the outside.

[Conventional technology]

A talking device such as a telephone or an intercom is usually installed inside the elevator car, and is connected to a communicating device such as a telephone or an intercom connected to a management room or the like in the building. If the elevator malfunctions and a passenger is trapped in the car, the passenger uses the telephone to contact the control room and request rescue. Recently, an elevator remote monitoring system has become mainstream, in which an elevator monitoring center is set up at an elevator maintenance company and passengers in each area are centrally managed via telephone lines. This remote monitoring system for elevators employs, for example, an elevator emergency call system disclosed in Japanese Patent Publication No. 59-17741, which allows direct communication between the elevator car and the above-mentioned monitoring center.

[Problem to be solved by the invention]

By the way, the call button of the elevator's emergency call system mentioned above is placed in a position where anyone can easily use it, so it is sometimes used even when there is no malfunction due to mischief by careless passengers. The notification is sent to the monitoring center, and the staff at the monitoring center has to deal with it, which is inconvenient in that most of the staff at the monitoring center spends most of their burden on this. Therefore, the present invention was devised to solve this problem, and its purpose is to provide an elevator system in which a notification is sent to the monitoring center only when a passenger is trapped in the car. The objective is to provide an emergency notification device.

[Means to solve WM]

In order to achieve the above object, the present invention is characterized in that an elevator emergency call system is configured such that a communication device provided in an elevator car and a communication device provided in a monitoring center are connected via a telephone line. The device is configured to include means for connecting the communication device of the car to the communication device of the monitoring center when the car communication device is activated only under the condition that the elevator door is closed.

[Effect]

In the present invention, with the above configuration, even if the car's reporting device is activated while the elevator door is open, it cannot be connected to the monitoring center's communication device, thereby preventing unnecessary sales due to mischief by one passenger. This has the effect of suppressing directional movements and significantly reducing the burden on staff at the monitoring center.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings. FIG. 1 is a block circuit diagram showing the configuration of an elevator emergency notification device according to an embodiment of the present invention. In the figure, 1 is a communication device installed in the car, 2 is a call button for starting the communication device, 3 is a closed door state detection device that emits an output signal when it detects that the elevator door is closed, and 4 is a closed door state detection device. A communication device installed in the manager's room; 5, 7.12 is an AND element, 6.11 is a knot element, and 8 is a communication device that automatically selects the telephone number of the destination and closes and opens the telephone line. ,
13 is a buzzer attached to the elevator car.

The operation of the present invention in the above configuration will be explained.

First, considering the case where a passenger is trapped in the car, the closed door state detection bag @3 detects the closed state of the elevator door and emits an output signal.

In such a state, when a passenger operates the call button 2, the car side communication device 1 is activated in response.
When the communication device 4 installed in the manager's room is called, and no response signal is emitted from the communication device 4, an output signal is emitted from the knot element 6, and the knot element 6 and the closed door state detection device 3 The output signal from the communication device 1 on the car side is input to the AND element 5, and from this AND element 5, the communication control device 8 receives the output signal from the A N D element. For example, in this example, the telephone line network device 9 is controlled by selecting a telephone number for calling the monitoring center and performing a dialing operation. The telephone line network device 9 performs an operation to call the communication device 10 provided in the monitoring center according to instructions from the communication control bag @8. Telephone device 10 called by telephone network device 9
When the staff at the monitoring center puts the hook-on state into the hook-on state, when this hook-on state signal is detected by the telephone line network device 9, the communication device i'll on the car side and the communication device on the monitoring center side↓
0 is closed, the car is able to communicate with the monitoring center, and a conversation is held between the passenger and the monitoring center staff, and the monitoring center staff can learn about the passenger's situation and the elevator situation. can. After the monitoring center staff learns of the situation, when the telephone device 10 is placed in the hook-off state, this hook-off state signal is detected by the telephone line network bag W9 and is sent to the communication control device 8 to release the telephone line. After selecting the signal and receiving the release signal, the communication control device 8 performs an operation to release the telephone line.

Next, considering that the elevator door is currently open, the closed door state detection device 3 is not emitting an output signal, so the passenger operates the call button 2 and the communication device 1 is activated. Even if this happens, only the signal from the communication device ↓ is input to the AND element 5, so a signal for activating the communication control device 8 is not output. Therefore, the communication device 10 provided at the monitoring center will not be called.

On the other hand, when the output from the closed door state detection device 3 is not emitted, an output signal is emitted from the knot element 11. This signal is input to the AND element 11, and when the passenger is operating the call button 2, the output signal is emitted from the knot element 11. is input to the AND element, so it is output from the AND element 11 and sounds the buzzer 13,
Passengers are now being warned.

Also, the call bag @4 provided in the manager's room is the call button 2.
When is operated, the signal is immediately called without regard to the state of the signal from the closed door state detection device 3.

According to this embodiment, the communication device installed in the monitoring center is called only when the elevator door is closed and there is no response signal from the communication device installed in the manager's room. In addition, if the communication device inside the car is activated while the elevator door is open, a buzzer will sound to alert the monitoring center. The present invention has the effect of realizing an emergency call device for an elevator that can suppress the alarm operation, greatly reduce the burden on the staff at the monitoring center, and also provide the effect of preventing mischief.

〔Effect of the invention〕

As explained above, according to the present invention, when the elevator door is open, the communication device installed in the monitoring center cannot be called, and the alarm device is activated. It is now possible to provide an emergency call device for elevators that is highly effective in preventing mischief and greatly reducing the burden on staff at the monitoring center.

[Brief explanation of drawings]

The figure is a block circuit diagram showing the configuration of an elevator emergency call device according to the present invention. 1... Car communication device, 2... Call button, 3...
Closed door state detection device, 4... Manager room communication device, 5, 1
2...AND element, 6,11...Knot element, 8...
- Communication control device, 9...Telephone line network device, 10...
Monitoring center communication device, 13... Buzzer procedure amendment (method) % formula % Display of case Patent application No. 1-218552 Name of invention Person who amends emergency communication device for elevator Relationship with case Patent applicant Tokyo Metropolitan Government 1-6 Kanda Nishikicho, Chiyoda-ku Hitachi Elevator Service Co., Ltd. Representative Toshihiko Fukayama

Claims (1)

[Claims] (1) An elevator emergency call device configured so that the call device installed in the elevator car, the call device provided in the monitoring center, and the call device provided in the monitoring center are connected via a telephone line. An emergency call device for an elevator, comprising means for connecting to a call device in the monitoring center when the car call device is activated only under the condition that the elevator door is closed.