The system control function of USB camera module shall meet the following requirements:


1. The system shall be able to operate manually or automatically, remotely control various functions such as camera, pan tilt, lens, protective cover, etc., with stable and reliable control effect.


2. The system shall be able to switch manually or automatically by programming. The video input signal can be displayed in fixed or time sequence on the designated monitor. The reconstruction time of switching image display shall be within the acceptable range.


3. The system with matrix switching and virtual switching / switching mode of digital video network shall have system information storage function, and all programming information and time information shall be maintained after power supply interruption or shutdown.


4. The system shall have interface with other systems. When other systems give linkage signals to the video system, the system can switch the images of corresponding parts to the designated monitor according to the predetermined working mode, and start the video recording equipment, and the linkage response time is not more than 4S.


5. The auxiliary lighting linkage shall be coordinated and synchronized with the image display of corresponding linkage cameras.


6. At the same time, the system with audio monitoring ability should have the ability of video and audio synchronous switching.


7. The system requiring multi-level or remote control shall support the function of sub control.


8. The control response of the front-end equipment to the control terminal and the real-time performance of image transmission should meet the requirements of security management.


5.0.5 the monitoring image information and sound information shall have original integrity.

5.0.6 the system shall ensure timely response to the image and sound information occurred on site and meet the management requirements.