JPH0714787B2 - Elevator equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an emergency call device for an elevator, and in particular, it is provided with means for ensuring a reliable call in an emergency and protecting the privacy of passengers during normal times. Elevator emergency call device.

[Prior Art] As an emergency monitoring communication device for an elevator, for example, Japanese Patent Laid-Open No. 62-62
As disclosed in Japanese Patent Publication No. 215484, a method has been proposed in which the inside of an elevator car is called from a monitoring center.

[Problems to be Solved by the Invention] In the above-mentioned conventional technology, it is convenient in an emergency because it is possible to talk with the inside of the elevator car simply by picking up the handset on the monitoring center side. When I picked up the handset, I could hear the story inside the elevator car, which was a problem in terms of protecting passenger privacy.

Moreover, recently, instead of individually monitoring each building, there is an increasing number of cases where security companies collectively manage multiple buildings via public lines such as NTT, so regardless of the intention of the other party. However, the method of unilaterally hearing the story in the elevator car also fails to satisfy the related laws and regulations regarding telephones using public lines.

It is an object of the present invention to provide an elevator with an emergency call device that can talk only when it is willing to respond to passengers in the elevator car.

[Means for Solving the Problems] In order to achieve the above object, the present invention notifies a monitoring center that remotely manages a plurality of buildings of an abnormal elevator occurrence, and calls the monitoring center to intercom in an elevator car. In an elevator having means for transmitting to the intercom, the intercom and the intercom switch are operated when two conditions are met: a call switch of an intercom operated by a passenger, a call from the monitoring center, and the operation of the call switch. The present invention proposes an elevator apparatus having means for connecting a call from a monitoring center so that the call can be made.

That is, the present invention proposes an elevator apparatus including means for blocking the connection with the intercom even when there is a call from the monitoring center when a passenger does not operate the call switch of the intercom.

Further, it is possible to include means for giving interphone operation guidance to passengers in the elevator car when an abnormality occurs.

Further, it is possible to include means for giving guidance to the floor when a hall call is made on one of the floors while the abnormality is occurring.

[Operation] In the present invention, when an abnormality occurs in the elevator and there is a call from the monitoring center, voice guidance or the like is used to provide guidance for operating the intercom in the elevator car, and a call switch such as a push button is operated. Only when this is detected, the surveillance center and the elevator car are connected so that they can talk.

Therefore, unless the passenger in the elevator car operates the call switch, which is equivalent to the operation of lifting the handset of a normal telephone, it is not possible to talk between the elevator car and the surveillance center. Is protected, and even when using a public line, the related laws and regulations regarding telephones can be satisfied.

Further, when a hall call is made to the elevator from any of the floors during the occurrence of an abnormality, providing guidance to the floor to inform the occurrence of the abnormality does not cause anxiety or dissatisfaction of waiting passengers.

[Embodiment] Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an embodiment of an elevator equipped with an emergency call device according to the present invention. In the figure, a terminal device 1 installed in each building includes a control circuit 2, a line control circuit 3 for controlling connection between a circuit in the terminal device 1 and a public line such as NTT, a control circuit 2 and a line. An intercom control circuit 4 for connecting the control circuit 3 and the intercom 13 in the elevator car 12, an interface 5 for connecting the control circuit 2 and the elevator control panel 14 also installed in each building, and the control circuit 2 The voice synthesizing circuit 6 is provided in the elevator car 12 to send operation guidance or the like according to an instruction from. The elevator car 12 includes an intercom 13 including an operation switch 19 such as a push button. The elevator control panel 14 includes a control unit 15 that controls a motor (not shown) that drives the elevator car 12, and an interface 16 that exchanges signals with the interface 5 in the terminal device 1.

On the other hand, the center control device 7 of the monitoring center, which is connected to the terminal devices 1 in the plurality of buildings via the public line, includes the center control device 8 and the center control device 7.
A center line control circuit 9 for controlling the connection between the internal circuit and the public line, a headset 10 comprising a receiver for communication and a microphone, a call button 11 for calling passengers in the elevator car 12, and an elevator car 12 An indicator lamp 17 and a buzzer 18 are provided to display the abnormality when there is an abnormality.

FIG. 2 is a block diagram showing a detailed configuration of an embodiment of the line control circuit 3 in the terminal device 1. Line control circuit 3
Includes analog signal switching units 31 and 32, and a level conversion unit 33 that appropriately performs mutual conversion between the level of the signal in the terminal device 1 and the level of the signal in the public line. Analog switching unit 31
Is normally in the position indicated by the solid line and transmits the signal from the control circuit 2 to the center control device 7 via the public line. However, only when the gate signal G1 is applied from the control circuit 2, The intercom 13 so that the signal from the intercom 13 can be transmitted. The analog switching unit 32 is normally in the position indicated by the solid line, and the intercom 13 is not in the receiving state. Only when the gate signal G2 is applied from the control circuit 2, the control signal is switched to the G2 side so that the signal from the voice synthesis circuit 6 can be received by the intercom 13. On the other hand, only when the gate signal G3 is applied from the control circuit 2, switching to the G3 side,
The intercom 13 can receive the signal from the center control device 7.

The operation of the elevator of the present embodiment configured as above will be described.

Normally, the terminal device 1 includes the control unit 15 in the elevator control panel 14.
The maintenance information from the device is taken into the control circuit 2 via the interfaces 16 and 5, the level is converted by the line control circuit 3, and transferred to the center control device 7 of the monitoring center via the public line. The other parts are in a standby state.

The information transferred to the center control device 7 is taken into the center control circuit 8 via the center line control circuit 9. The center control circuit 8 displays the content of the information on a CRT (not shown) or outputs it to a printer, as necessary, for maintenance of the elevator.

Information on the elevator abnormality is also taken into the terminal device 1 from the elevator control panel 14. Since this abnormality information is coded and sent, the control circuit 2 in the terminal device 1 analyzes the content of the abnormality and issues it to the monitoring center. Depending on the nature of the anomaly, the elevator may stop or have a malfunction that leads to it. In this case, it is necessary to take appropriate measures by giving appropriate instructions to passengers in the elevator car 12.

On the side of the monitoring center, it is possible to specifically know what kind of anomaly has occurred in which elevator of which building from the notification from the terminal device 1. In some cases, it is possible for the surveillance center to undertake the response to the anomaly before the passengers in the elevator car 12 are aware of it. Therefore, it goes without saying that the abnormality can be dealt with more quickly from the monitoring center side, but if the inside of the elevator car 12 can be called using the public line, the service for passengers can be improved.

However, the protection of privacy in the elevator car becomes a problem, and especially when using a public line, there is a problem in terms of regulations.

Normally, when a call is made, the ring tone sounds and the line is connected only when the handset is picked up. here,
An indication of intention to receive a call is required.

Similarly, in this system, when calling the inside of the elevator car 12 from the monitoring center, the elevator car 12
In order to protect the privacy of passengers inside, the line cannot be unilaterally connected in a normal state where there is no abnormality in the elevator. This means that as long as you use the public line, you will be subject to legal restrictions even when an abnormality occurs.

In the present invention, the operation of the line control circuit 3 for coping with this problem will be described with reference to the flowchart of FIG.

The control circuit 2 in the terminal device 1
Based on a signal from the elevator control panel 14, it is determined whether or not an abnormality has occurred.

If it is normal, the process proceeds to step 105, and it is determined whether or not the call switch (push button) 19 of the intercom 13 has been operated.

If it is not operated, it is normal, so the procedure ends here and the process is repeated from the start.

Even if the elevator itself is normal, when the passenger operates the call switch 19 in order to complain of a physical condition, etc., in step 106, the gate signals G1 and G3 are generated from the control circuit 2 and the center control device is also operated. Report to 7. This signal activates the indicator light 17 and the buzzer 18. When the observer who recognizes the display or buzzer operates the call button 11, the observer in the surveillance center and the elevator car
You will be able to talk to passengers within 12.

On the other hand, if it is determined in step 101 that an abnormality has occurred, the process proceeds to step 102, in which the alarm signal is sent to the monitoring center, and the gate signal G2 is generated to detect the abnormality occurrence preset in the voice synthesis circuit 6 to detect it. An announcement is sent in the elevator car 12 to inform that the notification has been sent to.

The notification from the terminal device 1 is taken into the center control circuit 8 of the center control device 7 via the public line. The center control circuit 8 operates the indicator light 17 and the buzzer 18,
Notify the observer of the abnormality.

When the observer operates the call button 11 to contact the elevator car 12 in which an abnormality has occurred, the center control circuit 8
Is converted into an elevator car call request signal and sent to the control circuit 2 of the terminal device 1.

At step 103, the control circuit 2 determines whether or not there is a call to the elevator car 12 from a supervisor.

If there is a call, the process proceeds to step 104, the operation guidance of the intercom 13 and the call switch 19 is flown into the elevator car 12, and the process proceeds to step 105. If there is no call, the process proceeds directly to step 105.

In step 105, it is determined whether or not the call switch 19 of the intercom 13 has been operated.

If it is not operated, it means that there are no passengers or no call is desired, so the procedure ends here, and the process is repeated from the start.

When the passenger operates the call switch 19, step 106
The control circuit 2 generates gate signals G1 and G3.
As a result, the guards and elevator cars in the surveillance center 12
You can talk to passengers inside. The monitoring staff at the monitoring center makes a call using the headset 10 or the like.

Here, an example in which the guidance to the passengers is given by voice has been described, but it is also possible to inform by a chime and an indicator light, for example, and the call switch of the intercom 13.
You may make 19 flicker.

Further, in step 102, the content of step 104 is also given guidance, and in step 103, it is determined whether or not there is a hall call from passengers waiting on each floor of the building, and if there is a hall call, in step 104 It is also possible to inform the waiting passengers in the hall that there is something wrong with the elevator car.

Furthermore, as a judgment factor of whether or not there is an abnormality, not only the abnormality that the elevator does not move, but also when the volume inside the car exceeds the specified value even when the elevator is moving, it is considered as an abnormality, It may be possible to execute guidance or call a call using an intercom.

According to the present invention, when an abnormality occurs in the elevator,
It is of course possible to quickly call up the inside of the elevator car from the surveillance center, but it is impossible for the surveillance center to unilaterally hear the inside of the elevator car unless the passengers inside the elevator car want to call. Therefore, passenger privacy is maintained.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of an elevator equipped with an emergency call device according to the present invention, and FIG. 2 is a block diagram showing a detailed configuration of an embodiment of a line control circuit in a terminal device. FIG. 3 and FIG. 3 are flowcharts showing the operation of the line control circuit in the terminal device of FIG. 1 ... Terminal device, 2 ... Control circuit, 3 ... Line control circuit, 4 ...
Intercom control circuit, 5 ... Interface, 6 ... Voice synthesis circuit, 7 ... Center control device, 8 ... Center control circuit, 9 ... Center line control circuit, 10 ... Headset,
11 ... call button, 12 ... elevator car, 13 ... intercom, 14 ... elevator control device, 15 ... control section, 16 ... interface, 17 ... indicator light, 18 ... buzzer, 19 ... call switch (push button), 31,32 … Analog switching section, 33… Level conversion section.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP 62-215484 (JP, A) JP 61-140482 (JP, A) JP 59-39671 (JP, A) JP 63- 295383 (JP, A)

Claims (4)

[Claims] 1. An intercom operated by a passenger in an elevator having means for notifying a monitoring center that remotely manages a plurality of buildings of an abnormality in the elevator and transmitting a call from the monitoring center to an intercom in an elevator car. And a means for connecting the intercom in the car and the call from the monitoring center so that the call can be made when there is a call from the monitoring center and the call switch is operated. Elevator equipment. 2. The elevator apparatus according to claim 1, further comprising means for giving operation guidance of the intercom in a car when the abnormality occurs. 3. The elevator apparatus according to claim 1 or 2, further comprising means for giving guidance to the floor when the hall is called on any of the floors while the abnormality is occurring. An elevator device characterized by being provided. 4. An elevator having a means for notifying an abnormal occurrence of an elevator to a monitoring center for remotely managing a plurality of buildings and transmitting a call from the monitoring center to an intercom in an elevator car, wherein a call switch of the intercom by a passenger. With no operation, even if there is a call from the monitoring center,
An elevator apparatus comprising means for preventing connection with the intercom.