JPH04280594A - Monitor itv system - Google Patents

Abstract

PURPOSE:To allow a supervisor to easily grasp the entire status by monitoring simultaneously video images of plural monitor cameras onto a screen of a single monitor. CONSTITUTION:A video signal of monitoring ITV cameras 11, 21, 31 arranged horizontally is converted into a picture data by A/D converter sections 12, 22, 32 respectively and stored in memory sections 13, 23, 33. A pattern reduction synthesis circuit 41 of a signal processing section 40 reads a picture data from the memory sections 13, 23, 33 and they are respectively reduced and synthesized to one pattern. A selection circuit 42 selects either a picture data of plural ITV cameras or a picture data outputted from the pattern reduction synthesis circuit 41 in response to a command of a control section 50. The selected picture data is converted into a television standard signal by a D/A converter section 60 and displayed on a monitor 70.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surveillance ITV system, and more particularly to a surveillance ITV system that monitors a wide area in the horizontal direction.

0002

2. Description of the Related Art Conventionally, in this type of monitoring ITV system, a plurality of ITV cameras are arranged horizontally, and each ITV camera is connected to a monitor for monitoring. Furthermore, when monitoring a moving object, the ITV camera is remotely controlled while viewing the monitor, and rotation and zoom operations are performed.

0003

[Problem to be solved by the invention] This conventional monitoring ITV
The system requires a number of monitors corresponding to the number of ITV cameras, and a space for installing the monitors. In addition, in order to follow and monitor moving objects, not only do ITV cameras have to be controlled over the line, but the monitor also has to grasp the overall situation from individual monitor images, which places a burden on the monitor. There is a point.

0004

[Means for Solving the Problems] The monitoring ITV system of the present invention includes a plurality of monitoring ITV cameras, and a screen reduction system that reduces the video signals output from the plurality of monitoring ITV cameras and combines them into one screen. a combining circuit; a selection circuit for selecting one of the video signals output by the plurality of monitoring ITV cameras and the video signal output by the screen reduction combining circuit; and displaying a screen of the video signal output by the selection circuit. The configuration includes a monitor for

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS 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. Surveillance ITV camera 11 arranged horizontally
, 21, 31, and A/D converters 12, 22, 32 that convert the ITV camera video output signals into digital signals, respectively.
Memory sections 13, 23, and 33 that store digital output signals of the A/D converters 12, 22, and 32, respectively, and signals that read screen data written in the memory sections 13, 23, and 33, and perform signal processing in real time. A processing unit 40;
A control unit 50 that controls the signal processing unit 40 and a signal processing unit 4
D/A converts 0 output signal to television standard signal
It includes a converter 60 and a monitor 70 that displays the video signal output from the D/A converter 60.

[0007] The signal processing section 40 includes memory sections 13, 23,
A screen reduction and synthesis circuit 41 reads image data from each of the plurality of image data 33, reduces the size and synthesizes the image data into one screen, and selects any one of the plurality of image data according to instructions from the control section 50.
It has a selection circuit 42 for selecting one.

When following and monitoring a moving object, images from a plurality of monitoring ITV cameras 11, 21, and 31 can be simultaneously monitored on one monitor 70 by selecting the image data output by the screen reduction synthesis circuit 41. can do.

[0009]

[Effects of the Invention] As explained above, the present invention not only saves the installation space of the monitor by reducing and composing the images of multiple surveillance cameras and displaying them on one monitor, but also makes it possible to When tracking and monitoring a body, the observer can easily grasp the entire situation, which has the effect of significantly reducing the burden of camera operation.

[Brief explanation of the drawing]

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

[Explanation of symbols]

11, 21, 31 Surveillance ITV camera 41
Screen reduction synthesis circuit 42 Selection circuit 70 Monitor

Claims (1)

[Claims] 1. A plurality of monitoring ITV cameras, a screen reduction and synthesis circuit that reduces video signals output from the plurality of monitoring ITV cameras and synthesizes them into one screen, and a screen reduction and synthesis circuit that reduces and synthesizes video signals output from the plurality of monitoring ITV cameras, and the plurality of monitoring ITV cameras A monitor comprising: a selection circuit that selects one of the video signal to be outputted and the video signal outputted by the screen reduction/synthesis circuit; and a monitor that displays a screen of the video signal outputted by the selection circuit. ITV system.