CN1216427A

CN1216427A - Video image record controller

Info

Publication number: CN1216427A
Application number: CN 97106182
Authority: CN
Inventors: 陈可扬
Original assignee: SHENYANG INFORMATION TECHNOLOGY INST
Current assignee: SHENYANG INFORMATION TECHNOLOGY INST
Priority date: 1997-10-30
Filing date: 1997-10-30
Publication date: 1999-05-12

Abstract

The image-controlled video image record controller includes video camera, monitor and video recorder, and it features the image-controlled image recording circuit, which is used to start the image record of the video recorder and consists of parameter setting circuit, video signal detecting circuit and unit control circuit. It can change the video signal into digital signal for storage and compare images for the automatic control of video recorder, so that it can reduce the labor strength of the monitoring staff and prevent "miss control" event.

Description

Video image record controller

The present invention relates to image communication record and detection technique field, particularly a kind of video image record controller.

At present, in public security, confidential, bank, important departments such as hotel extensively adopt the TV monitoring and controlling mode, TV monitoring and controlling is that a kind of control is wide, the advanced means that efficient is high, and obtained good monitoring effect, but TV monitoring and controlling also exists significant disadvantages: important monitoring objective seldom has flow target to occur usually, and the monitor staff sneaks away in the face of the dull image that has no to change on the screen is easy to produce the battle-weary spirit of very ending for a long time, promptly when material circumstance occurring suddenly on the screen, might make the monitor staff have little time video record, very only also may not observe this important picture at all, so that " leaking control " accident that should not take place in monitoring.

The purpose of this invention is to provide a kind of setting of selecting by brightness sensitivity, target sensitivity, target speed sensitivity and brightness locking, can send working signal to video tape recorder, send the video image record controller of sound and light alarm signal.

The present invention realizes like this, it comprises video camera, monitor and video tape recorder, the picture control video recording control circuit that it is characterized in that being used for starting automatically the video tape recorder recording picture comprises the parameter setting circuit, video signal detection circuit and unit controls circuit, wherein the parameter setting circuit is by keyboard, and data memory, processor, buffer, synchronous head split circuit, preheating amplification circuit and vision signal clock combiner circuit are formed; The video signal detection circuit is made up of AD converter, DA transducer, oscillator, selector, synchronous head generator, collection timing sequencer, selector, high speed static storage, preheating amplification circuit and synchronous head split circuit; The unit controls circuit is moved by alarm circuit, level and shaping circuit, timer circuit and delay control circuit are formed, in the parameter setting circuit, accept instruction setting from keyboard, equipment is stored in the clock data memory, whether root a tree name processor decision control signal clock circuit frequently is superimposed upon clock on the vision signal, and the treated controller of serial ports that advances of processor provides necessary control that data are set; Put treatment circuit from the composite video signal of video signal source through previewing and obtain composite video signal, this signal send the picture frame memory after sending the video AD conversion, DA is converted to analog signal output with the switching signal of A D at any time, the lock-out pulse that analog signal after the conversion produces with sequence circuit again synthesizes composite video signal and send monitor, also can be by the content in the memory in the processing controller control output; Startup drive signal to the level of sending from processing controller move and shaping circuit after, and then deliver to alarm and delay control circuit by timing circuit, at first send the VTR signal, send the REC signal then, send STOP respectively during end and the VTR letter sends the VTR signal, send the REC signal then, send STOP and VTR signal during end respectively.

The present invention is owing to can change vision signal into digital signal and storage, two images of appointment are compared the automatic record of controlling recorder or stop, therefore can alleviate monitor staff's labour intensity, and effectively prevent the generation of " leaking control " incident.

The present invention will be further described below in conjunction with accompanying drawing,

Fig. 1 is the electrical schematic diagram of video image record controller,

Fig. 2 is a parameter setting circuit diagram among Fig. 1,

Fig. 3 is a video signal detection circuit diagram among Fig. 1,

Fig. 4 is the unit controls circuit diagram of Fig. 1,

Fig. 5 is the supervisory control system block diagram of video image record controller,

As Fig. 1--shown in 5, this video image record controller, it comprises video camera 1, monitor 2 and video tape recorder 3, the picture control video recording control circuit that is used for starting automatically video tape recorder 3 recording pictures comprises parameter setting circuit 4, video signal detection circuit 5 and unit controls circuit 6, wherein the parameter setting circuit is 4 by keyboard 7; Data memory M1 (DS12877) and resistance R 19, electricity, appearance C7; Processor 8031, chip 74LS373 and 2764; Buffer M3; Synchronous head split circuit LM1881N and capacitor C 12, R23; Preheating amplification circuit and vision signal clock combiner circuit UPD6150 form; Video signal detection circuit 5 is by A/D converter CA3318 and power supply 78L05AC; D/A converter D/AC0800, IV transducer CA3140T, data buffer IC32 (74LS374); Oscillator Q4, IC23 (1474LS00); Selector IC12--13 (74L8157), IC8--10 (74L800,74L8221); Synchronous head generator Q2, IC11 (74LS221) IC21 (74L800), collection timing sequencer IC14--20 (74LS163,74L8118,74LS74) and IC25 (74LS04); Selector IC12--13 (74LS157); High speed static storage IC35--36 (64K*8SRAM); Preheating amplification circuit Q1, IC25 (CA3140T) and synchronous head split circuit IC26 (LM1881N) form; The unit controls circuit is by alarm circuit Q1, capacitor C 12, buzzer P7 and LED8--9; Level moves and shaping circuit IC1 (GD4504), 1/4IC3 (4030); Timer circuit IC2 (MC14060), 12IC3,12IC4B and C14, R10 and delay control circuit IC5--8, Q2,--Q4, J1--J3 form, in the parameter setting circuit, accept instruction setting from keyboard 7, equipment is stored among the clock data memory M1 (DS12877), whether root a tree name processor 8031 decision control of video signal clock circuit are superimposed upon clock on the vision signal, and the treated controller of serial ports that advances of processor provides necessary control that data are set; Put treatment circuit from the composite video signal of video signal source through previewing and obtain composite video signal, this signal send the picture frame memory after sending the video AD conversion, DA is converted to analog signal output with the switching signal of AD at any time, the lock-out pulse that analog signal after the conversion produces with sequence circuit again synthesizes composite video signal and send monitor 2, also can be by the content in the memory in the processing controller control output; Startup drive signal to the level of sending from processing controller move and shaping circuit after, and then deliver to alarm P7 and delay control circuit by timing circuit, at first send the VTR signal, send the REC signal then, send STOP and VTR signal during end respectively.

Claims

1, a kind of video image record controller, it comprises video camera, monitor and video tape recorder, the picture control video recording control circuit that it is characterized in that being used for starting automatically the video tape recorder recording picture comprises the parameter setting circuit, video signal detection circuit and unit controls circuit, wherein the parameter setting circuit is by keyboard, data memory, processor, buffer, synchronous head split circuit, preheating amplification circuit and vision signal clock combiner circuit are formed; The video signal detection circuit is made up of AD converter, DA transducer, oscillator, selector, synchronous head generator, collection timing sequencer, selector, high speed static storage, preheating amplification circuit and synchronous head split circuit; The unit controls circuit is moved by alarm circuit, level and shaping circuit, timer circuit and delay control circuit are formed, in the parameter setting circuit, accept instruction setting from keyboard, equipment is stored in the clock data memory, whether root a tree name processor decision control of video signal clock circuit is superimposed upon clock on the vision signal, and the treated controller of serial ports that advances of processor provides necessary control that data are set; Put treatment circuit from the composite video signal of video signal source through previewing and obtain composite video signal, this signal send the picture frame memory after sending the video AD conversion, DA is converted to analog signal output with the switching signal of AD at any time, the lock-out pulse that analog signal after the conversion produces with sequence circuit again synthesizes composite video signal and send monitor, also can be by the content in the memory in the processing controller control output; Startup drive signal to the level of sending from processing controller move and shaping circuit after, and then deliver to alarm and delay control circuit by timing circuit, at first send the VTR signal, send the REC signal then, send STOP and VTR signal during end respectively.

2, the described video image record controller of root a tree name claim 1 is characterized in that the parameter setting circuit is by keyboard; Data memory M1 (DS12877) and resistance R, capacitor C 7; Processor 8031, chip 74LS373 and 2764; Buffer M3; Synchronous head split circuit LM1881N and capacitor C 12, R23; Preheating amplification circuit and vision signal clock combiner circuit UPD6150 form.

3, the described video image record controller of root a tree name claim 1 is characterized in that preheating amplification circuit and vision signal clock combiner circuit UPD6150 form; Video signal detection circuit 5 is by AD converter CA3318 and power supply 78L05AC; DA transducer DAC0800, IV transducer CA3140T, data buffer IC32 (74LS374); Oscillator Q4, IC23 (1474LS00); Selector IC12--13 (74L8157), IC8--10 (74L800,74L8221); Synchronous head generator Q2, IC11 (74LS221) IC21 (74L800), collection timing sequencer IC14--20 (74LS163,74L8118,74LS74) and IC25 (74LS04); Selector IC12--13 (74LS157); High speed static storage IC35--36 (64K*8SRAM); Preheating amplification circuit Q1, IC25 (CA3140T) and synchronous head split circuit IC26 (LM1881N) form.

4, the described video image record controller of root a tree name claim 1 is characterized in that the unit controls circuit is by alarm circuit Q1, capacitor C 12, buzzer P7 and LED8--9; Level moves and shaping circuit IC1 (GD4504), 1/4 IC3 (4030); Timer circuit IC2 (MC14060), 12 IC3,12 IC4B and C14, R10 and delay control circuit IC5--8, Q2,--Q4, J1--J3 form.