| In the recent years, with the rapid development of kinds of police task, the need of image information is also continuously promoted. To increase technology content of the Qingdao crime prevention and control system, enhance the ability to control public order, raise the city management level, the bureau designs and builds Qingdao police image comprehensive application platform. The platform is comprised of audio, video and other information technologies, which is a multi-function, multi-application comprehensive applications system by means of modern scientific and technology methods.The police image comprehensive application platform can not only provide modern methods for realizing the goal "overall control,focused defense, rapid reaction, precision strike" in the security management of public security organs, but also lay stable foundation for modern management in the city. The police image comprehensive application platform can manage to monitor the important areas like key units, main objectives, key bayonets, key drags, highway entrances and exits, every super market, large hotels, residential areas, stations, hospitals, schools, complicated security places and so on.According to the Ministry of Public Security and national related construction technology standards, combining with the actual need of the city crime prevention and control system as well as the technological methods can be resorted to currently, the bureau analyzes comprehensively and identified construction solution and then implements to build. The platform not only borrows construction ideas from a lot of pilot projects of the Ministry of Public Security but also combines with local specific circumstances, in the meanwhile, the departments investigate market mainstream technologies and factories thoroughly as well as adopt mainstream monitoring and networking technology both at home and abroad. Based on all the above, Qingdao police image comprehensive application platform is planned and built. The platform construction takes into account the various circumstances, which has the advantages of running efficiently and saving investment and so on.Qingdao police image comprehensive application platform is a large scale system including safety precaution, computer application, network communication, video compression and transmission, access control and many other high technologies, which is not only an totally large investment and high technical requirements but also involves a large amount of users as well as a wide link system project. The platform integrates kinds of actual applications and can provides various information support. For the reasons above, the police image comprehensive application platform task and goal is to plan technology defense network scientificly, integrate kinds of social technology defense resources, build a uniform city remote video monitoring and warning integrated information service platform to realize the full sharing of video surveillance alarm information and provide visualization resources for city emergency response system.Qingdao police image comprehensive application platform is an important project in the "Golden Shield Project" second period construction, which is an important technical means for the full implementation of the police technology training strategy. At the same time, the police image comprehensive application enhances the police command decision making capability, security and order prevention and control capability, detection capability. According to the requirements of higher level deparments, combining with actual work in our city at the same time, based on existing hardware and software platform, the bureau fully carries out Qingdao police image comprehensive application platform including video, audio, pictures information and so on. The platform makes the best of existing software and hardware resources and achieves the goal of reducing investment and saving resources:Qingdao police image comprehensive application platform depends on the optical fiber transport channel the operator provide.At the same time, the platform is digital system based and analog system assisted. The platform addresses devices uniformly including cameras, optical senders and receivers, simulated matrixes, keyboard viewers, VRDs, Video Encoders, Video decoders and makes the best of video and control resource in encoders and decoders to accomplish video data transmission in the digital video monitoring dedicated network and effictive monitoring of terminal devices. In one word, the police image comprehensive application platform can manage to integrate all devices referred in the solution. The platform makes the best of system resources including channel, terminal and so on so that it can unify the whole net and plan concretely.Qingdao police image comprehensive application platform monitoring junction centers are municipal 110 command center and traffic command center which adopts IP video technology and analog video technology respectively to jointly share the video resources. In harness, with the overall video platform of municipal 110 command center, the platform provides video information support for municipal bureau leaders. In the meanwhile, viewing the local police station as actual combat unit, the video information is mainly used for traffic guidance and public security. When emergency response coordination center deploys jobs with the traffic police crew video platform as the overall platform, it provides effective video information support for municipal bureau leaders effectively and rapidly. The construction of the platform can not only increase resource sharing among police organs but also enhance mutual communication, which help carry out work from all aspects. Qingdao police image comprehensive application platform, on one hand, can manage to accomplish uniform authentication and management task based on users and roles using the global system control stream and video stream in the network, on the other hand, directory servers accomplish to identify the users and devices for the authorization management. In the meanwhile, device management servers accomplish the management and control using matrixes controllers and encoders and decoders. The platform can manage users efficiently and plan role functions rationally. At the same time, efficient network control plays an important role in the platform.During the construction process of the Qingdao police image comprehensive application platform, based on fully considering local actual situation, innovate boldly, combining with the mainstream technology of the current video and network area, the platform not only succeeds in large scale analog matrixes networking but also breaks out the Pelco matrix quantity limitation. At the same time, the platform can compaliant various simulated systems and digital systems as well as obligates interface for. other heterogeneous'systems which protects existing system investment. By means of building reliable security mechanism and management mechanism, the platform can unify user authority and manage users concentrately to ensure the system safety. |
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