【正文】 the baud rate generator mode, TH2 or TL2 should not be read from or written to. Under these conditions, the Timer is incremented every state time, and the results of a read or write may not be accurate. The RCAP2 registers may be read but should not be written to, because a write might overlap a reload and cause write and/or reload errors. The timer should be turned off (clear TR2) before accessing the Timer 2 or RCAP2 registers. 中 文 隨著電視技術(shù)的發(fā)展和閉路電視監(jiān)控系統(tǒng)要求的提高，閉路電視監(jiān)控系統(tǒng)迅速成長起來。 Monitoring Centre (control center)。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。s time. Server software installation is plete, the system automatically configures the video data storage path, users may need to use the serverside management software to change configuration, the system supports distributed video storage for largecapacity storage may be provided. Monitoring center can be set up in a monitoring station, monitoring workstation as a system administrator user of the system in equipment and user management, including video data maintenance and management. Workstations can be connected with the projector system can be used to monitor or demonstration. monitoring workstation (client) Network puter users to install DVR client software, landing by the system administrator to provide legal status and server access rights, can bee a monitoring station. Client software, including: system configuration tools, control software, and audio and video playback software enquiries. System configuration tool: video can be set to undertake the lens division, video server settings, among others. Monitoring Software: 19 frame to provide the realtime monitoring, Haeundae or ball machine control. Enquiries playback software: According to the lens name, date / time, video and other types of enquiries, and intervals for the results. Monitoring centre is just a puter as a server (under video server configuration corresponding amount of demand for hard disk), can be configured as a workstation monitoring systems management and settings to use, when necessary can be configured a projector and workstations connected to peacetime surveillance or system demonstration. Implementation of the system The system of cameras and lenses, Haeundae, protective enclosures, monitors, and other traditional products can basically part of the optional, but it should be used costeffective products. The system used in highdefinition color Huamianbangeqi 16 Huamianbangeqi, automatic image switch selectable switching time, a functional image freeze. Video switch matrix by the Chengdu Branch of the MJ516 video switch matrix, and the ways