JP2888346B2 - Elevator monitoring device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an elevator monitoring system including an intercom device and a television camera in an elevator car, which can remotely monitor the state of the elevator car by using these devices. Related to the device.

[Prior Art] Since the inside of an elevator car is a kind of closed room while the elevator is operating, various illegal acts and crimes may take place, and abnormalities occur in the car for user safety. When a situation occurs, it is necessary to immediately grasp the situation outside.

In order to completely understand the state of such an abnormal situation,
In addition to intercoms that report to the outside by user operation in the car, it is possible to place a monitoring TV camera,
It is proposed in Japanese Utility Model Application Laid-Open No. 58-48669 and Japanese Utility Model Application Laid-Open No. 61-178768.

In Japanese Unexamined Utility Model Publication No. 58-48669, an antenna is provided in a hoistway, a video signal taken by a television camera arranged in a car is guided to a monitoring room by a coaxial cable, and the image is displayed by a receiver. An internal monitoring device for an elevator, which causes the VTR to record or record the video, is disclosed.

In Japanese Utility Model Laid-Open Publication No. 61-178768, an image captured by a television camera in a car is switched to one of a monitor television provided on a panel of a hall and a monitor television in a monitoring room to be displayed as an image. An elevator monitoring device is disclosed.

As described above, according to the monitoring device according to the proposal, the inside of the car can be monitored by the monitor television provided in the monitoring room or the landing to grasp the state of the abnormal situation.

[Problem to be Solved by the Invention] When the technology according to the above-described proposal is introduced, compared with the conventional case of only voice notification using an intercom, it is possible to monitor the inside of a car with a monitor television in a monitoring room. It is possible to more completely grasp the state of an abnormal situation.

However, in a monitoring center that remotely monitors equipment in a building, it is not possible to monitor an image captured by a television camera provided in a car on a monitor. For this reason,
In the absence of a supervisor in the building's monitoring room, the monitoring center can communicate directly with the passengers in the car through the interphones in the car, but the condition in the car can be monitored via images taken by a TV camera. Cannot be grasped visually.

In order for the monitoring center to be able to directly monitor the image captured by the TV camera installed in the car on the monitor, a new communication line must be provided to transmit the image data to the monitoring center using the image transmission technology, and Although it is conceivable to display an image on the above, the addition of a communication line has a problem in terms of cost.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described current situation of grasping the state of the inside of a car of an elevator, and an object of the present invention is to provide a television camera provided in a car without adding a communication line. Is directly displayed on a monitor television at a monitoring center to monitor the inside of the car.

[Means for Solving the Problems] In order to achieve the above object, the present invention connects an intercom apparatus and a television camera provided in a car of an elevator via a telephone line to a monitoring center for remotely monitoring the elevator. A terminal device, provided in the terminal device,
A selection device for selecting any of the intercom device and the television camera and connecting to the telephone line, and a command device provided in the monitoring center and instructing selection of the selection device via the telephone line. It had. [Operation] When an abnormality or the like occurs in the car of the elevator and the passenger operates the intercom apparatus, a call can be made between the inside of the car and the monitoring center. Depending on the content of the call, the supervisor at the monitoring center operates the command device to see the inside of the car, and issues an operation command to switch the selection of the selection device to the TV camera. , A switching command for switching the selection of the selection device to the television camera is issued. As a result, the selection device switches the connection with the telephone line to the television camera side, so that the video signal from the television camera is transmitted to the monitoring center via the telephone line, and the state in the car is displayed on the monitor television, and the monitoring is performed. The staff can see the inside of the car visually.

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

FIG. 1 is an explanatory diagram showing the configuration of the embodiment of the present invention.

As shown in FIG. 1, an intercom apparatus 2 and a television camera 3 are installed in a car 1 of an elevator. Further, a terminal device 5 is provided in a machine room of an elevator or the like, and the terminal device 5 includes a selection device 6 and a communication device 7 connected to a common terminal of the selection device 6.

The intercom device 2 is connected to one of the switching terminals of the selection device 6 by a signal line 4, and the television camera 3
Is connected to the other switching terminal of the selection device 6 by a signal line 4 '.

On the other hand, a monitoring center 9 is provided. The monitoring center 9 selectively drives a communication control device 10, a conversation device 11 with the intercom device 2 connected in parallel to the communication control device 10, and the selection device 6. A command device 12 and a monitor device 13 for monitoring an image of the television camera 3 are provided. The communication device 7 of the terminal device 5 and the communication control device 10 of the monitoring center 9 are connected to each other by a telephone line 8.

 Next, the operation of the embodiment will be described.

When an abnormal situation occurs in the car 1 and a user of the elevator in the car 1 operates the intercom apparatus 2, an operation signal is generated from the intercom apparatus 2, and the operation signal is transmitted to the signal line 4 and the selection apparatus 6. Is input to the communication device 7 via the.

When an operation signal is input to the communication device 7, the communication device 7 performs an automatic dialing operation, and the communication device 7 and the communication control device 10 of the monitoring center 9 mutually connect the telephone line 8 by the dialing operation. Connected via. When the communication control device 10 of the monitoring center 9 confirms the generation of the operation signal from the intercom device 2, the communication control device 10
Connected to.

In this way, the intercom apparatus 2 and the conversation apparatus 11 are connected to be able to communicate with each other, and the user in the car 1 and the operator of the monitoring center 9 use the intercom apparatus 2 and the conversation apparatus 11, respectively. Then, by exchanging the calls with each other, the operator can grasp the abnormal situation in the car 1.

When the operator wishes to visually confirm the state of the car 1 in the course of this mutual communication, the operator operates the command device 12 to output a television camera selection command signal from the command device 12. . This television camera selection command signal is input to the selection device 6 via the communication control device 10, the telephone line 8, and the communication device 7, and the selection device 6 is switched, so that the television camera 3 is connected to the telephone line via the signal line 4 '. 8 is connected.

Therefore, the call between the user in the car 1 and the operator of the monitoring center 9 is interrupted, the video signal of the television camera 3 is input to the monitor device 13 via the telephone line 8 and the communication control device 10, and the monitor device 13 At 13, a photographed image of the car 1 by the television camera 3 is displayed. In this manner, the operator can visually confirm the state of the car 1 by the monitor device 13.

To exchange a call with a user in the car 1 again, the command device 12 is operated to output an intercom selection command signal. When the intercom selection command signal is output, the selection device 6 is switched and the intercom device 2 is connected via the signal line 4. It is connected to the telephone line 8 and is in a state where a call between the user in the car 1 and the operator of the monitoring center 9 can be made via the intercom apparatus 2 and the conversation apparatus 11.

As described above, according to the embodiment, the driving operation of the command device 12 on the monitoring center 9 side using the common telephone line 8 enables
The selection device selects one of a communication state between the user and the operator in the car 1 through the intercom device 2 and the conversation device 11 and a monitoring state of the photographed image in the car 1 by the television camera 3 by the monitor device 13. 6 can be selected by operating. Therefore, the abnormal state that occurred in the car 1 is communicated with the user via the intercom device 2 and the conversation device 11 and the monitor device 13 of the image taken by the television camera 3.
By the above-mentioned image monitoring, it is possible to completely grasp and take an appropriate action quickly and accurately.

Since there is no need to provide a new communication line for the television camera 3, it is possible to configure the television camera 3 at low equipment cost.

Although the embodiment has been described in connection with the configuration in which a notification is made directly to the monitoring center when an abnormal situation occurs in the car and the intercom apparatus is operated, the present invention is not limited to the embodiment. , The report is first sent to the monitoring room of the building,
Abnormal situations that can be handled by the supervisor in the monitoring room are processed in the monitoring room, and a notification may be sent to the monitoring center when the manager is absent or when an abnormal situation occurs that the manager cannot handle. I can do it.

[Effects of the Invention] As described above, according to the present invention, a selection device for selecting one of an intercom device and a television camera and connecting to a telephone line is provided in the terminal device, and the selection device is selected via the telephone line. Since the monitoring center has a command device for commanding the elevator, the supervisor who remotely monitors the elevator at the monitoring center operates the command device to enable communication with passengers in the car and an intercom device in the car. By switching to a TV camera that displays the status of the vehicle, the existing telephone line can be used as it is, without incurring the expensive equipment costs of adding a communication line, and the video displayed on the monitor TV. Can be selected arbitrarily to obtain accurate recognition of the condition in the car from a remote location.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing the configuration of an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1 ... Car, 2 ... Interphone device, 3 ... TV camera, 4,4 '... Signal line, 5 ... Terminal device, 6 ... Selection device, 7 ... Communication device, 8 ... Phone line , 9 ... monitoring center, 10 ... communication control device, 11 ... conversation device, 12 ...
Command device, 13 Monitor device.

Continuation of the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) G08B 25/00-25/10 H04M 9/00 B66B 3/00

Claims (1)

(57) [Claims] An intercom device and a television camera provided in a car of an elevator, a terminal device connected via a telephone line to a monitoring center for remotely monitoring the elevator, and the intercom device provided in the terminal device. A selection device for selecting one of the device and the television camera and connecting to the telephone line; and a command device provided at the monitoring center and instructing the selection of the selection device via the telephone line. Elevator monitoring device.