【正文】 2 A TRANSLATING both systems to advanced, practical, mature, reliable, but also to open systems, scalability, and take into account reasonable investment, the purpose of the best efficiency. CCTV surveillance equipment on the spot on surveillance, control and management of these facilities in a safe, reliable and efficient operation, and make full use of intelligent management role, to create a safe, healthy, fortable and to be able to improve the efficiency of the fine work environment , energy conservation, and reduce maintenance personnel. According to the project39。s environmental needs, and demand for the establishment of joint function of the item CCTV monitoring, 1, the system has the following features: CCTV main task is an important part of the building within the developments, such as dynamic flow conditions macroeconomic surveillance, control, the various anomalies in order to conduct realtime evidence, review, to the timely processing of purpose. 1) video signal timing, location switch programming. 2) view and record images, and a distinction should be characters time (year, month, day) display. 3) receive signal superimposed elevator floor. 4) synchronized switching: Power, synchronous or synchronous. 5) to receive security subsystems signal system, in accordance with the need to achieve joint control or system integration. 6) internal and external munications links. 7) security surveillance television system and security alarm system linked, should be able to automatically switch, display, record of the image signal alarm location and alarm time. 8) Power Control Camera security control room should be unified with green power by the security control room operatorsto cut off. On the security control room far away from the camera is powered reunification can be difficult to resolve the nearest, if the system is a synchronous mode of power, and security must be the same for the control room of a reliable power supply. 2, the system has the following features: pression technology video coding standard is designed for the highquality image pression campaign designed by the low bitrate image pression standard. video coding used in the movement of the mon coding method, coding and decoding process is divided into two parts interframe coding. Egypt Intra Improved DCT transformation and quantified in the interframe of a 1 / 2 pixel motion vector forecast pensation technology, motion pensation more precise, quantifiable improvements apply variable length coding table (VLC) and quantitative data for entropy coding, coding final coefficient. standard higher pression ratio, the entire CIF formatmode single occupied bandwidth in the hundreds around the general, occupied bandwidth depending on the specific exercise how many different picture. Deficiency is relatively poor quality of some, occupied bandwidth screen with movement and the plexity of substantial change. In short, this is a closedcircuit television monitor so that the item highly automated, highly efficient elegant fortable, convenient and speedy, highsecurity environment of space. System mainly consists of three parts: frontend monitoring。 Monitoring Centre (control center)。 workstation (client). The installation of video surveillance point: Color night vision cameras and color of high illumination cameras and other equipment installed in the designated location, providing 12 VDC power supply and video interface. Monitoring Centre According to specific requirements of schools, teaching areas (of nine school buildings), by Information Centre and the Centre set up a control extensions, the clinic, teachers dormitory (a total of two dormitory) and garage, the living quarters of students (total 12 dormitory) to install a control extensions, canteens, supermarkets, sports centre, student activity centre, Training Center, the south gate, Simon and the North have set up a control extensions, in the host control centre set up to monitor the entire campus that in turn control the first time police information and criminals every move in the room were Baoweichu president and the establishment of a control center. DVR control center through the control system can be arbitrary view the full image (to authority), and a monitoring point for the implementation of cloth Chefang, video playback 3 operations (to access). Control centers are located in the President39。s Office, the leading subcontrol center can ca arbitrary control of pan, tilt and zoom images and action. As a management and understanding of the situation both inside and outside the hospital auxiliary means. House leadership not to the office in order to understand the key parts of the hospital situation. Through transmission from the remote video signals through digital hard disk video recorders to provide resource sharing connections. All the video and alarm records can be shared through the work (to access). Set up seven distribution of authority, the operators were in a different authority to operate. System of great security, all users must provide to the user name and password to detect petence, not manipulati