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With the continuous development of science and technology, public security departments the increasingly emphasis on Kejiqiangjing work. With the full launch of the Golden Shield Project, the resident population of the transient population, focusing on population, fugitive library, fingerprint system was robbery of the vehicle, the driver information, and so on a series of public security underlying database and constantly improve the public security and internal network applications are constantly promotion, but the public security system has been unable to meet the current public security work. Police officers in policing activities, only through radio, mobile phones and other communication tools to stay in the unit's colleagues call to query and verify data. The original model is clearly behind the times, police officers need a state-of-the-art, easy to operate, you can move the platform with the public security work carried out. This thesis, computer technology and wireless communications applications technology through mobile phones and J2ME technology to develop a mobile police system set applies to the Public Security Traffic Patrol. Wireless communication technology, so the majority of the Traffic Patrol from the constraints of time, place, and the first time check, check the matter and deal with lawlessness, realize a simple to use, easy to carry and can effectively completed work PDAs. In this thesis, a prototype of the multi-layer structure of the wireless application system, including the design of the Web server, the design of the wireless client, the design of the communication module, the RMS management module design, database design, and so on. System analysis of a layered system architecture, J2ME architecture, each layer of the key technologies, such as RMS technology, MIDP technology. Then, the system architecture of the J2ME platform, configuration and summary table specifications, RMS and networking technology depth and detailed analysis and research. With J2ME technology advantage in mobile communications, the key part of the system design and implementation methods, and to develop a mobile police system applicable to the Public Security Traffic Patrol, the complete set of application development mobile carrier , making it a highlight of the work of the police training and technology. The development and application of the system, greatly improve the level of public security information resources sharing, and lay the foundation for the construction of public security of the information superhighway, but also a useful fumble Kejiqiangjing work. The system running on a single machine, network access testing, and the test is correct. The systems have been improved in transparency, flexibility, efficiency, scalability, etc., basically meet the needs of the day-to-day work of the Traffic Patrol.
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