JPH09267984A - Remote monitor device for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically pick up image of the inside of a cage with a television camera at the time of emergency by transmitting the signal from the television camera, which is provided in an elevator cage, to a monitor center when the signal from an interphone slave unit, which has an emergency call button, inside of the elevator cage is input. SOLUTION: At the time of emergency, signal of an emergency call button 2a, which is pushed by a passenger, is output to a control board 11, and thereafter, a selecting unit 9a of an image transferring device 9 selects the signal from a television camera 8 so as to project a picked up image in a monitor center side monitor 12. After the predetermined time is passed, the selecting unit 9a connects an interphone slave unit 2 and an interphone master unit 4 of the monitor center to each other so as to detect the existence of the input of the sound of the passenger from the interphone slave unit 2. In the case where sound is not detected, a command is output from the monitor center so that the selecting unit 9a of the image transferring device 9 selects the signal from the television camera 8, and image of the inside of the cage 1 is picked up again by the television camera 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote monitoring device for an elevator, in which a television camera for monitoring the inside of the elevator car automatically captures an image of the inside of the car.

[0002]

2. Description of the Related Art Some elevators are connected by a telephone line to a monitoring center for safety, maintenance and inspection of the car from the outside. Some elevator cars such as these have recently been equipped with a TV camera in addition to the intercom handset that enables direct calls to the surveillance center.

When a passenger suddenly becomes ill in the elevator car and presses an emergency call button, the surveillance center immediately issues a command to the elevator to take a picture of the interior of the car with a television camera. Therefore, when it is confirmed that a sudden sick person has appeared in the car, the person is immediately dispatched to be rescued and then dispatched to the hospital by ambulance or the like.

On the other hand, passengers in the car sometimes push the emergency call button by mischief, and in such a case, when the inside of the car is photographed by the TV camera, it is immediately understood that it is a mischief, and the person There is no need to do unnecessary dispatch.

[0005]

However, in such a conventional remote monitoring device for an elevator, although a television camera is provided in the car, the controller instructs the camera to shoot the camera. In some cases, in an emergency, you may only make a direct call through the intercom and not shoot inside the car with the TV camera. Then, if the passenger suffers from a sudden illness in the car, there is a fear that the arrangement of the ambulance may be delayed without understanding this.

The present invention, when an emergency occurs,
An object of the present invention is to provide a remote monitoring device for an elevator that automatically captures an image of the inside of a car with a TV camera.

[0007]

In order to achieve such an object, according to the present invention, a television camera provided in a car of an elevator and an intercom handset having an emergency call button provided in the car. And a telephone line connecting the elevator and the surveillance center, and a selection unit for converting a digital signal from the TV camera into an analog signal and selecting either the signal from the TV camera or the signal from the intercom slave unit. And a control panel configured to issue a command to the selection unit to transmit a signal from the television camera to the monitoring center when a signal from the intercom slave unit is input. .

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. 1 and 2 are diagrams showing an embodiment of an elevator remote monitoring apparatus according to the present invention.

In FIG. 1, reference numeral 1 is an elevator car, and an intercom slave unit 2 is mounted in the car 1. The intercom slave unit 2 is connected by a telephone line 3 to an intercom master unit on the external monitoring center side. 4 and monitoring computer 5.

The intercom slave unit 2 has an emergency call button 2a.
When the emergency call button 2a is pressed and the handset of the intercom master unit 4 is picked up, a call becomes possible. Here, since the telephone line 3 is dedicated to an analog signal, a modem 6 for converting a digital signal from the intercom subunit 2 into an analog signal is interposed between the intercom slave unit 2 and the telephone line 3, and the telephone is also used. A modem 7 for converting an analog signal into a digital signal is provided between the line 3 and the intercom base unit 4 or the like.

A television camera 8 for photographing the inside of the car 1 is attached to the car 1, and an image photographed by the television camera 8 is displayed on a monitor 12 of a surveillance center. The telephone line 3 for the intercom is used to transmit the image information from the television camera 8 to the monitor 12 without using a separate line.

Since the image information from the television camera 8 is a digital signal, it is converted into an analog signal by the video transfer device 9 provided on the elevator side, and then the telephone line 3 is connected.
The video signal is transmitted by the video reception device 10 on the monitor center side and converted into a digital signal and displayed on the monitor 12. The video transfer device 9 also includes a selection unit 9a for selecting either the signal from the intercom slave unit 2 or the signal from the television camera 8.

A control panel 11 is installed in a machine room or the like on the elevator side.
When a command is issued from the control panel 11 to the selection unit 9a, the selection unit 9a is activated to connect the television camera 8 to the telephone line 3 and monitor the image information taken in the car 1. It is projected on 12. Further, the control panel 11 also receives a signal for pressing the emergency call button 2a and a signal from a voice detector provided in the intercom slave 2.

The operation of the remote monitoring device will be described below with reference to the flow chart shown in FIG.

One passenger in the car 1 may be suddenly ill and an emergency may occur. Then, the passenger presses the emergency call button 2a, but this pressing signal is sent to the control panel 11
Is output to (step S ₁ ). Next, a signal is output from the control panel 11 to the selection unit 9a of the video transfer device 9, and the selection unit 9a selects the signal from the television camera 8 and the telephone line 3
A photographed image is displayed on the monitor 12 on the side of the surveillance center through (step S ₂ ).

Next, the timer section of the control panel 11 measures a predetermined time (for example, 5 seconds) and determines whether or not it has elapsed (step S ₃ ).

Next, after a lapse of a predetermined time, a signal is output from the control panel 11 to the selecting unit 9a, and the selecting unit 9a selects the signal from the intercom slave unit 2 and a telephone line with the intercom slave unit 2 on the elevator side. Connect to the intercom master unit 4 on the monitoring center side through 3 (step S ₄ ).

The voice detector of the intercom slave 2 detects whether the voice from the passenger is input to the intercom slave 2 (step S ₅ ). If no sound is detected, the selection unit 9a of the image transfer device 9 selects a signal from the television camera 8 by issuing a command from the center side, and the television camera 8 takes an image of the car 1 again (step). S ₆ ). At this time, if the passenger in the car 1 is collapsed due to a sudden illness or the like, this emergency will be displayed on the monitor 12 without fail. Then, the controller of the surveillance center knows that a serious emergency has occurred in the car 1, and immediately arranges an ambulance or the like.

On the other hand, when it is detected that the passenger's voice is input to the intercom subunit 2, the intercom subunit 2 is detected.
Keeps the call state with the intercom master unit 4 on the monitoring center side (step S ₇ ).

When the emergency call button 2a is pressed, the television camera 8 automatically captures an image of the inside of the car 1, so that it can be immediately known whether it is a mischief and unnecessary maintenance staff dispatch can be prevented. .

[0021]

As described above, according to the present invention,
When the control panel inputs a signal from the intercom slave unit, it issues a command to the selection unit to send the signal from the TV camera to the monitoring center, so the car inside the car is automatically shot and the car The controller knows that a serious emergency has occurred and can immediately arrange an ambulance.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a remote monitoring device for an elevator according to the present invention.

FIG. 2 is a flowchart showing the operation of this remote monitoring device.

[Explanation of symbols]

 1 ... Basket 2 ... Intercom handset 3 ... Telephone line 4 ... Intercom base unit 8 ... Television camera 9 ... Video transfer device 9a ... Selector 11 ... Control panel 12 ... Monitor

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroshi Katsu 3-2-1, Sakado, Takatsu-ku, Kawasaki-shi, Kanagawa Nihon Otis Elevator Co., Ltd.

Claims (1)

[Claims] 1. A television camera provided in a car of an elevator, an intercom handset having an emergency call button provided in the car, a telephone line connecting the elevator and a monitoring center, and a digital signal from the TV camera. When the video transfer means having a selecting unit for converting into an analog signal and selecting either the signal from the TV camera or the signal from the intercom slave unit and the signal from the intercom slave unit are input, the TV camera outputs the signal. And a control panel configured to issue a command to the selection unit to transmit the signal of 1. to the monitoring center.