CCD camera control system

In intelligent buildings, the amount of information and the workload of information processing in the closed-circuit television system are very large. Therefore, the operation of the base control console generally adopts a computer system, using a full keyboard method programmed by user software to complete tasks such as driving the pan-tilt tour, video switching, alarm processing, and equipment status self-test.

The current digital video monitoring alarm system uses computer multimedia technology, with CCD cameras as alarm probes. The cameras transmit the acquired video signals to the host computer, and the high-speed image processor in the host computer processes the video signals digitally, analyzes and compares the image formed by the video signals with the background image, and alarms if any differences are found, because this is a full-screen alarm, so it is not easy to miss. At the same time, the host computer automatically collects the alarm image and stores it in the computer. Afterwards, the user can check the image of the alarm scene at any time according to the time and place to understand the cause of the alarm. The system combines the TV monitoring system and the alarm into one, realizing the synchronization of monitoring, alarm and image recording. In addition, there is no video recorder or video distributor in this system. All alarm records are in the computer's hard disk, and all operations are based on the software prompts on the screen. It is a new concept of security protection system for users.

There are three main switching modes of the control system:
Single-step switching mode: Use the control keyboard to switch any input video signal to the main monitor.
Sequential switching mode: Use the control keyboard to compile a sequential switching mode program, compile several input video signals in the system into one program, and when the program is running, the screen can be set according to the preset