Digital Video Surveillance System Design And Implementation

Video surveillance is always an applied technology which people pay a lot attention to. It is widely used by its convenience and abundant information. With the rapid development of the computer, network, image processing and transmission technique, great progress were made in the field of video surveillance technique. The video surveillance system can real-timely, visually, truly reflect the things that is supervised and controlled, and also can get the information of these things, and therefore increases the efficiency of management and the level of official automatization. Compared with the traditional video surveillance system, the advantages of the digital video surveillance system are long video recording time, perfect image quality and high-speed query. Digital video surveillance system has become a developing hotpot. The early analog video surveillance system must be replaced by the digital video surveillance system.This article witch backgrounds of researching of a digital video surveillance system. By the video compress card DS-4004H, the function of low bite-rate video coding and remote video surveillance are realized. The main features of the system include the management of user authority, the main interface, the video recording of system, the system management, the linkage alarm, the gate-ban system, the full-duplex speech and data management. The management of user authority includes the setting user's password and the login information of operator and administrator. The main interface includes 1 to 16-channel multi-video window display which can be switched automatically or manually, set every channel, random selected pictures to watch and recorded. The video recording of system includes video recording by people, alarm recording, real-time recording, motion detection recording and playback stream media. The system management includes video card and video recording. The gate-ban system includes control variability which may be identified in three types: vari-magnification, vari-focus and aperture. The full-duplex speech model includes the speech between the server and the client. The data management model includes real-time monitoring, gang video alarm, alarm by speech and etc.The system havs already been applied in ICBC (Industrial and Commercial Bank of China) and sub branch of the bank. It can be also used in the domain requiring high security such as traffic, prison and so on. It has got very good social effects and economic benefit.