JPH04144466A - Image monitoring system - Google Patents

Abstract

PURPOSE:To make it unnecessary to manually monitor the display image of an image receiver by recording an image signal and a voice signal from a monitored spot whose abnormality is detected in a VTR device and reporting the generation of the abnormality on the monitored spot to a spot other than a corresponding monitoring spot. CONSTITUTION:The image and voice signals inputted in the image receiver 10-3 are connected also to an image signal detection part 10-4 and the VTR device 10-5 and the detection part 10-4 detects the input of the image signal and outputs its detection information to the VTR device 10-5 and an abnormality detection information output terminal 10-6. At the time of receiving the detection information, the VTR device 10-5 is started, records the connected image and voice signals, and if the terminal 10-6 is extended and connected up to another spot separated from the monitoring spot 10, the abnormality detection is reported to a person existing in the other spot. Thereby, the absence of a full- time operator for monitoring is unnecessary.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a remote monitoring system, and particularly to an image monitoring system that efficiently monitors a plurality of monitoring points using a telephone line.

[Conventional technology]

Conventionally, this type of remote image monitoring system connects monitoring points scattered in remote areas via telephone lines, displays image signals transmitted from each monitoring point on a receiver, and displays the image signals transmitted from each monitoring point on a receiver. The displayed image was constantly monitored.

[Problem to be solved by the invention]

The above-described conventional image monitoring system constantly monitors image signals transmitted from each monitoring point, and therefore has the disadvantage that a dedicated person for monitoring is required.

An object of the present invention is to provide an image monitoring system capable of recording image signals and audio signals of a monitoring point where an abnormality has been detected on a VTR device, and notifying a location other than the monitored point that an abnormality has occurred at the monitoring point. Our goal is to provide the following.

[Means to solve the problem]

The image monitoring system of the present invention includes an imaging device that captures an image of a monitoring point, a microphone that collects audio from the monitoring point, a sensor that detects an abnormality at the monitoring point, and an analog video signal and an audio signal. a band compression transmission device that encodes and compresses the band and converts it into a digital signal; an automatic calling device that automatically calls a predetermined specific subscriber number upon receiving an abnormality detection signal output from the sensor that detects the abnormality; a digital electronic exchange that connects the subscriber based on the dial information output by the automatic calling device; an interface unit that converts signals between the digital electronic exchange and the band compression transmission device; and a signal transmitted from the monitoring point. In an image monitoring system that performs long-distance monitoring and includes an image receiving device that displays an image signal, a storage device that stores images and audio signals sent out from the monitoring point, and an image signal detection device that detects the image signal sent out from the monitoring point. and a control signal output from the image signal detection section to activate the storage device.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention.

FIG. 1 shows an imaging device 1-1 that images a subject at a monitoring point.
．． Microphone 1-2 for collecting audio from the monitoring point. A sensor 1-3 that detects an abnormality at a monitoring point, a band compression transmission device 1-4 that digitizes and encodes audio and image signals.
A monitoring point 1 consisting of an automatic calling device 1-5° that automatically dials the subscriber number of the monitored field point; an interface unit 1-6 that converts audio/image signals and dialing signals into signals that match the interface of the digital electronic exchange 9; and monitoring point 2, which has the same configuration as monitoring point 1. . . 8, an interface unit 10-2 that converts the output signal of the digital electronic exchange 9 into a predetermined signal format, and a band compression transmission device 10-2 that decodes the received digital multiplexed signal into audio/image signals. ．． An image receiving device 10-3 that displays an image signal. Image signal detection unit that detects the presence or absence of an image signal output by the band compression transmission device 102], O-4, band compression transmission device 1
V that records the image signal and audio signal output by 0-2
It consists of a monitored point 10 consisting of a TR device, a monitored point 20, 30 having the same configuration as the monitored point 10, and a digital electronic exchange 9 that connects the monitored points 1 to 8 and the monitored points 10 to 30. be done.

Here, the monitoring information detected by the monitoring point 1 is transferred to the monitored point 1.
An example of transmitting to 0 will be explained.

When the sensor 1-3 detects an abnormality, it sends a detection signal to the automatic calling device 1-5. The automatic calling device 1-5 automatically dials the subscriber number of the preset monitored point 10 6 The dial information is sent to the dental electronic exchange 9 via the interface section 1-6 and Monitoring point 10
connected to.

On the other hand, the image signal output by the imaging device 1-1 and the audio signal collected by the microphone are respectively connected to the band compression transmission device 1-4. The analog image and audio signals input to the band compression transmission device 1-4 are encoded, band compressed, multiplexed, and sent to the interface unit 1 as digital signals.
-6. The image and audio data signals converted into a predetermined signal format suitable for the digital electronic exchange 9 by the interface section 1-6 are connected to the interface section 101 of the monitored point 10 via the digital electronic exchange 9. The received multiplexed signal restored into a predetermined signal format by the interface unit 10-1 is decoded into an analog image signal and audio signal by the band compression transmission device i-0-2, and then sent to the image receiving device 1.
Visually and audibly displayed at 0-3. At the same time, the image and audio signals input to the image receiving apparatus 0-3 are also connected to an image signal detecting section 10-4 and a VTR unit W10-5.

The image signal detection section 10-4 detects that an image signal is input, and outputs detection information to the VTR device 1.5 and abnormality detection information output terminals 10-6. VTR device 10-5
starts when it receives detection information and records the connected image and audio signals. Also, abnormality detection information output terminal 10-6
By extending and connecting the monitor to another location distant from the monitored point, it is possible to notify people present at that location of abnormality detection. Therefore, after receiving the notification, it is possible to reproduce the VTR device and confirm the monitoring point where the abnormality has occurred based on the already recorded images and sounds.

The digital electronic exchange connects the line in response to the empty state of the monitored point 10 to 3 degrees, and if any monitored point is communicating, it returns a heavy signal to the monitored point, Wait until communication at the location ends and then call again. After the communication ends, the monitored point sends a line disconnection signal to the digital electronic exchange 9.
and disconnect the line to complete the communication.

Although an example in which there are eight monitoring points and three monitored points has been described here, it goes without saying that the present invention does not particularly limit the number of points.

〔Effect of the invention〕

As explained above, the present invention is capable of recording image signals and audio signals of a monitoring point where an abnormality is detected on a VTR device, and also notifying a location other than the monitored point that an abnormality has occurred at the monitoring point. Therefore, there is an effect that it is not necessary to constantly monitor the display image of the image receiving device by a person. Furthermore, since the abnormal situation is recorded on the VTR, it is possible to reproduce the abnormal situation at a later date and reconfirm the abnormal situation if necessary.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention. 1-8...Monitoring point, 1-1.2-1. ~8-1...
- Imaging device, 1-2.2-2. ~8-2...Microphone, 1-3.2-3. ~8-3...Sensor, 14.
2-4. ~8-4.10-2.20-2゜30-2...
- Bandwidth compression transmission device, 1-5.2-5 to 8-5...Automatic calling device, 1-6.1-6. ~86.10-1.20
-1.30-1...Interface unit, 9...Digital electronic exchange, 10-30...Monitored point, 10-
3 to 30-3...image receiving device, 10-4 to 30-4...
- Image signal detection section, 10-5 to 30-5... VTR device, 10-6 to 30-6... Abnormality detection information output terminal.

Claims (1)

[Claims] An imaging device that captures images of a monitoring point, a microphone that collects audio from the monitoring point, a sensor that detects abnormalities at the monitoring point, and a digital signal that encodes and band-compresses analog video and audio signals. an automatic calling device that automatically calls a predetermined specific subscriber number in response to an abnormality detection signal output by the sensor that has detected an abnormality; and a dial output from the automatic calling device. a digital electronic exchange connecting said subscribers with information;
An image monitoring system that performs remote monitoring, comprising an interface unit that performs signal conversion between the digital electronic exchange and the band compression transmission device, and an image receiving device that displays an image signal sent from the monitoring point. It has a storage device that stores images and audio signals sent out by the monitoring point, and an image signal detection unit that detects the image signals sent out by the monitoring point, and the storage device is activated by a control signal output from the image signal detection unit. An image monitoring system characterized in that: