JPH03186583A - Remote monitoring system for elevator - Google Patents

Abstract

PURPOSE:To prevent useless emergency mobilization by commanding a check- operation to judge the check-position results when operation of a talking device in a cage is detected by talking devices provided in the cage and an elevator control station, and there is no abnormality in an elevator. CONSTITUTION:When a call button 11 in a cage 1 is depressed accidentally or deliberately, a talking device start-up detecting circuit 12, a talking device 14, a net-control device 13 start to send a signal to a monitoring center 2 through a general subscriber telephone line 3. A net-control device 21, a talking device 22, a telephone 23 in the monitoring center 2 are energized, and a foreman replies by the telephone 23. When there is no answer to the reply from the cage 1, the start-up is judged to be caused by faulty operation or mischief. When abnormality signal is not outputted from an abnormality detecting circuit 15, a check-operation circuit 18 is energized by output of a check-operation instructing circuit 6 to perform the check-operation. Sounds due to travelling or opening and closing doors are monitored by a speaker of the talking device 22 to ensure that abnormality does not occur. When any abnormality occurs, it is informed a maintenance center 4.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a remote monitoring system for elevators.

[Conventional technology]

Generally, an intercom is used as a reporting device between an elevator car and the outside. A handset is installed inside the car and a base unit is installed in the control room, allowing communication between the inside of the car and the control room. was being carried out.

By the way, recently, elevators have been installed in medium and high-rise residences and small buildings, and in such buildings,
In many cases, a manager is not always present, or the management of the elevator is outsourced to a representative of the resident. If such an elevator breaks down, the manager may be absent or unaware of the situation, and passengers may be trapped inside the car and unable to contact them.

In addition, in consideration of the above, in some unmanned locations, when a breakdown occurs, by pressing the "emergency button" inside the car, a specific subscriber such as an elevator service company can be contacted via a single station line. The idea is to send pre-recorded content on a tape recorder to the person, thereby letting them know that they are trapped inside the elevator. However, since the trapped person cannot speak directly to the person, it is possible that appropriate treatment cannot be taken, which may cause a sense of anxiety to the trapped person.

Furthermore, even in cases of mischief, etc., specific subscribers such as elevator service companies must be dispatched each time, which may cause confusion.

In order to solve this problem, for example,
An elevator emergency call device as described in Publication No. 7 has been proposed and put into practical use.

[Problem to be solved by the invention]

Conventional elevator remote monitoring systems are configured as described above, but some elevator users commit mischief such as activating the emergency notification device even if there is no abnormality in the elevator, and Some users mistakenly activate the emergency notification device and leave the area, but the situation inside the car cannot be grasped, and as an elevator maintenance company, it is difficult to understand the situation inside the car. Unless it is determined that something unusual has occurred inside the car and the situation cannot be confirmed without contacting the car, maintenance personnel will need to be dispatched to the location. As a result, the dispatch will be wasted, which may increase maintenance costs.

An object of the present invention is to provide an inexpensive remote monitoring system for elevators that can reliably prevent wasteful dispatch due to the alarm operation of an unnecessary emergency notification device.

[Means to solve the problem]

In order to achieve the above-mentioned object, the present invention has an in-car communication device that is installed inside a passenger car to make calls to people outside the car, and an in-car communication device that is installed in an elevator management office and connected to the in-car communication device via a telephone line. control center communication device, and detects that the in-car communication device has been activated, and when there is no abnormality in the elevator, commands the elevator to perform inspection operation based on this. and an inspection operation circuit that performs an inspection operation based on the output from the operation instruction means, and the status of the elevator operated according to the inspection operation circuit is recorded in audible sounds via a communication device. It is characterized in that it is configured to make a determination based on the following information.

[Effect]

Since the elevator remote monitoring device according to the present invention is configured as described above, when the emergency call device is activated and there is no abnormality in the elevator, the elevator is inspected and the status is audible through the notification device. Since the situation is judged based on this, it becomes possible to easily determine whether the activation of the 5 notification device is due to mischief or erroneous operation with a simple configuration, and prevent unnecessary dispatch. I can do it.

〔Example〕

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

FIG. 1 is a block diagram showing the main parts of an elevator remote monitoring system according to the present invention, in which a terminal device 1 and a reception device 2 of a monitoring center are connected by a general subscriber line 3, and A telephone set 23 provided in the reception bag W2 of the monitoring center and a telephone set 41 provided in the maintenance center 4 serving as a maintenance base are connected by the general subscriber telephone 3. Reference numeral 5 denotes a line control device for controlling line connection and disconnection of the general subscriber line 3. The terminal device l includes an in-car communication device M14 for communicating between the car and the outside, a call button 11 for activating the in-car communication device 14 provided in the elevator, and a call button 11 that is operated. A communication device activation detection circuit 12 that detects that the communication device is activated and issues an output signal is connected to a management center communication device 22 provided in a reception device 2 of the monitoring center, which will be described later, through the general subscriber line 3. Network control device 1
3, an abnormality detection circuit 15 that issues an output signal when an abnormal state of the elevator is detected, and an inspection operation command circuit 6 that includes a knot line element 16 and an AND circuit element 17 that issue an inspection operation instruction. an inspection operation circuit 18 that displays the inspection operation, and a display bag [
19, the operation signal of the call button 11 is transmitted to the communication device activation detection circuit 12, and the communication device activation detection circuit 12
The output signals from the 1 communication device 14, the network control device 13, and the AND circuit element 17 are respectively transmitted. The output signal from the AND circuit element 17 is sent to the inspection operation circuit 18, the operation signal of the inspection operation circuit 18 is sent to the display device 19, and the abnormality detection signal output from the abnormality detection circuit 15 is sent to the NOT circuit element 16. It is configured to be input.

The call button 11, the communication device 14, and the communication device activation detection circuit 12 are placed inside the car, and the display device 19 is placed inside the car or at the landing. Further, the abnormality detection circuit 15 and the inspection operation circuit 18 are provided in the control panel of the elevator (not shown), and the inspection operation command circuit 6 and the network control device 13 are installed in the elevator which has already been proposed by the applicant, although not described in detail here. Similarly to the elevator monitoring device for remotely monitoring the status of . The reception device 2 of the monitoring center includes a network control device 2 that closes and opens the general subscriber line 3 based on control signals from the line control device 5, and the above-mentioned communication device connected to this network control device 21. On the other hand, the above-mentioned maintenance center 4 is provided with a telephone 41 and a telephone 23 used for communication between the respective staff members.

Next, the operation of the system according to the present invention will be explained.

Now, if a user of the elevator mischievously or accidentally operates the call button 11, the operation signal causes the communication device activation detection circuit 12 to detect this and send a signal to the communication device 14 to activate the communication device 14. At the same time, a signal for activating the network control device 13 is also sent to the network control bag [13]. The communication device operator 4 establishes a call state based on the signal sent from the communication device activation detection circuit 12, and the network control device 13
Based on the transmission signal from 2, a dial operation is automatically performed to call a preset alert destination, here the monitoring center, and a corresponding signal is transmitted to the line control device 5 via the general subscriber line. The line control circuit 5 sends a signal to the network control apparatus 21 via the general subscriber line 3 to call the network control apparatus 21 provided in the receiving apparatus 2 of the monitoring center corresponding to this signal. When the network control device 21 receives the signal sent from the line control device 5, it sends a signal to call the telephone device 22, and in response, the telephone device 22 makes one call to the staff stationed at the monitoring center. A display is displayed to notify that the device ↓4 has been activated, and the monitoring center staff can then operate or pick up a switch (not shown) provided on the communication device 22 or the handset, thereby transmitting this signal to the network control device 2. The communication device 14 and the communication device 22 are then connected via the general subscriber line 3 to the line control device 5.

The communication device 14 and the communication device 22 are in a state where they can communicate, and can have a conversation through the microphone and speaker provided on each.

If the user is in the elevator car, the user can answer questions from the staff, and the staff can judge the elevator situation accordingly.

However, in most cases, when a mischief or erroneous operation occurs, the person leaves the scene immediately and the staff cannot judge the situation because there is no sound.

In this embodiment, an operation signal for the call button 11 is sent from the first communication device activation detection circuit 12, and the signal is inputted to one input terminal of the AND circuit element 17, indicating that an abnormality has occurred in the elevator. In this case, since no abnormality detection circuit is sent from the abnormality detection circuit 15, the not circuit element 16
A high level signal is sent from , this signal is input to the other input terminal of the AND circuit element 17, and the output terminal of the AND circuit element 17 becomes a high level state.
Therefore, an inspection operation command signal is sent from the inspection operation command circuit 6 to the inspection operation circuit 18. Based on this command signal, the inspection operation circuit causes the car to run back and forth or stop at each floor. Due to such operation, the car opens and closes its doors every time it stops, so the sound of the opening and closing operations or the running sound of the elevator car is picked up by the microphone installed in the communication device 14.
This sound can be heard through the speaker of the communication device 22, and the staff can judge the status of the elevator based on the sound generated by the inspection operation. In addition, if other users who have boarded the elevator on another floor are talking to each other during the inspection operation, listen to their voices and find that there is no abnormality with the elevator, and that the communication device 14 has been activated and is a nuisance. , or it can be determined that it is an erroneous operation.

At this time, if the sound heard through the telephone device 22 is an abnormal sound, a request for dispatch is sent to the maintenance center 4 in charge using the telephone 23, and the maintenance center 4 in charge
All you have to do is get to know this fact from the telephone equipment engineer 4 and then go to the site, so if the telephone equipment 1 is damaged due to mischief or malfunction.
It is now possible to reliably prevent unnecessary dispatch in response to the alarm operation described in item 4 with simple equipment, and it has become possible to realize an highly economical remote monitoring system for elevators that can significantly reduce maintenance costs compared to conventional methods. Ta.

In addition, in the embodiment, during inspection operation, the display device 19 disposed in the first car or at the landing displays a message to that effect, so that a user who has boarded the elevator during inspection operation or This also has the effect of preventing users waiting at the landing from thinking that the elevator is malfunctioning.

Incidentally, after the general subscriber line 3 is closed as described above, the opening operation to release the connection is performed by the communication device 2 of the monitoring center.
．． Since it is clear from known circuits that this can be done by turning back the above-mentioned switch provided at 2 or the handset, a detailed explanation will be omitted.

〔Effect of the invention〕

As explained above, in the present invention, when the first notification device is activated and there is no abnormality in the elevator, the elevator is inspected, the situation is audible through the notification device, and the situation is determined based on this. Therefore, it becomes possible to easily determine whether the activation of the notification device is due to mischief or erroneous operation with a simple configuration, and it is possible to prevent unnecessary dispatch.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a schematic configuration of an elevator remote monitoring system according to the present invention. 1... Terminal device, 2... Monitoring center reception device, 3
. . . General subscriber line, 4. Maintenance center, 5. Line control device, 6. Inspection operation command circuit, 11. Call button, 12. Communication device activation detection circuit, 13. ...Network control device. 14... In-car communication device, 15... Abnormality detection circuit,
16... Knot circuit element, 17... AND circuit element, 18... Inspection operation circuit, 19... Display device, 21
...Network control device, 22...Telephone device, 23...Telephone set, 41...Telephone set.

Claims (1)

[Claims] (1) An in-car communication device that is installed inside the car and makes calls to people outside the car, and an administration center communication device that is installed in the elevator management office and connected to the above-mentioned in-car communication device via a telephone line. and an operation command means that detects that the in-car communication device is activated and issues a command to perform inspection operation on the elevator based on the condition that there is no abnormality in the elevator; An elevator comprising an inspection operation circuit that performs an inspection operation based on an output from an operation command means, and the status of the elevator operated according to the inspection operation circuit is determined based on audible sounds via the communication device. remote monitoring system.