(I) Background and Challenges

　　Public security command centre is to protect public security and disposal of public emergencies, major incidents, traffic emergency management of the command and scheduling places, in the command centre of the large amount of information, high data flow and multi-channel monitoring business needs, the large screen display control system can flexibly and conveniently provide a content-rich, accurate and efficient information and image display platform, a close to the needs of the battle of the integrated information display interface, so that the command Personnel can put forward plans, programmes and decision-making opinions in time to ensure that the decision-making and orders of the command system can be conveyed and implemented steadily and rapidly and feedback, so as to ensure that the whole command system has linkage, high efficiency and completeness.

　　(ii) Solution

　　Command Centre Display Control System takes the integrated platform as the core control unit, which can easily achieve a variety of signal access and output to LCD or DLP screen for high-definition display.

　　Using the powerful data processing capability and splicing control capability of the integrated video platform, the command centre display control system can realize single-screen display, whole-screen display, arbitrary split display, image superposition, arbitrary cutting display, arbitrary combination display, image translucent mixing processing, image roaming, image stretching and LOGO/OSD display, etc., so as to satisfy the user's needs for various forms of screen display.

　　(C) programme highlights

　　(1) Integration of high-definition coding, high-definition digital matrix, high-definition image output, high-definition image control and other functions, to achieve the video image from the acquisition, transmission, coding, switching control to the display of the full range of applications;

　　2）Support analogue SD, analogue high line, network SD, network HD, digital HD and other monitoring front-end mixed compatible access, while supporting computer signals, video conference signals and other signals decoded on the wall;

　　(3) a high degree of system integration, the traditional video surveillance system in the video matrix, RGB matrix, video codecs, large-screen splicer and other equipment functions integrated into the video composite platform, to achieve the streamlining of the server room wiring, and reduce the cost of construction of the system, while greatly improving the stability and reliability of the system;

　　(4) Compatible with a number of analogue matrix, can be achieved with the original analogue matrix system interconnection and mutual control, effectively protect the user's investment;

　　(5) support through the optical fibre or network to achieve multi-level cascade, can meet the requirements of multi-level multi-layer architecture, to achieve the upper and lower levels of resource calls and cross-matrix equipment control, and optical fiber cascade mode can achieve real-time lossless transmission of video signals to ensure that the video of high-quality and low-latency;

　　(6) can provide real-time fog function, not subject to fog, haze, rain and other weather effects, to ensure that the image of a clear display; while supporting times the frame of the smooth display function, which can significantly improve the video of moving objects in the sense of movement, improve the smoothness of the image, to ensure a comfortable viewing effect.