Control system of CCD camera
In an intelligent building, the amount of information and information processing in the closed-circuit television system are very large, so the operation of the base console generally uses a computer system, and the full-keyboard method of user software programming is used to complete the drive PTZ tour, Video switching, alarm processing, equipment status self-checking, etc.
The digital video surveillance and alarm system that appears now uses computer multimedia technology and uses a CCD camera as an alarm probe. The camera transmits the acquired video signal to the host. The high-speed image processor in the host digitizes the video signal and converts the image formed by the video signal. Analyze and compare with the background image, if there is any difference, it will alarm, because this is a full-screen alarm, so it is not easy to miss the report. At the same time, the host automatically collects the alarm image and stores it in the computer. Afterwards, the user can refer to the image of the alarm scene at any time according to the time and location to understand the cause of the alarm. The system combines the TV monitoring system and the alarm into one, which realizes the synchronization of monitoring, alarm and image recording, and there is no video recorder or video distributor in this system. All alarm records are in the hard disk of the computer, and all operations are performed. According to the software prompts on the screen, it is a new concept of safety protection system for users.
There are three main ways to switch the control system:
Single-step switching mode: Use the control keyboard to switch any input video signal to the main monitor.
Sequential switching mode: the sequential switching mode program prepared by the control keyboard is used to compile several input video signals in the system into one program. When the program is running, its screen can be set in advance
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