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Police 3G car video solution

2018-04-14 04:48:53

In order to realize the informatization of police vehicle management and improve the efficiency of law enforcement, the GPs-based vehicle 3G video surveillance system is introduced. By installing GPS video surveillance terminals on police vehicles and using the operator's 3G network, the system can send the on-site video to the command and monitoring through 3G network wireless transmission. Command and monitoring can conduct real-time monitoring and video recording of dynamic information such as the position and status of police vehicles in a large area, timely deal with problems encountered at the scene, and ensure safe monitoring means during the execution of tasks, so as to implement effective management, dispatch and rescue. With this system, when receiving the public emergency report, the case personnel determine the closest duty vehicle with the emergency location through the electronic map, and inform the police personnel on the vehicle of the emergency location and emergency situation, the police personnel can rush to the scene at the first time, and the real-time video situation of the scene through the 3G network wireless transmission to the monitoring, greatly reducing the police time. Maximize safety and reduce losses. Bell Technology 3G car video terminal, respectively using 3G network and CDMA1X and wireless transmission of video and voice, can simultaneously transmit 1 ~ 4 clear, coherent video, rather than a single still picture. At present, wireless video surveillance has been more and more applied to special applications such as systems, wireless video surveillance can assist the system to confirm the accuracy of the police, record the whole process of the scene, intuitively observe the development of the scene situation, assist decision makers to make accurate judgments in time, take correct measures, so that personal safety and economic losses to a minimum. Local real-time video recording, recording high-resolution images; Supervise and record the situation inside and outside the vehicle to provide effective evidence for analysis and forensics after the event; Supervise the behavior of drivers, firefighters and surrounding people, and achieve standardized service; Remote wireless transmission; Remote real-time monitoring; It can realize remote real-time alarm networking and two-way voice communication. Realization of traffic data collection (black box function); System structure Vehicle video surveillance system front-end vehicle equipment structure includes front-end signal acquisition equipment, transmission line and control display equipment three parts. The front-end signal acquisition equipment includes 3G in-vehicle wireless video terminal, out-vehicle pinion rotating camera, sound acquisition equipment, etc. Transmission lines include 3G, video cable, audio cable, power cable, alarm cable, etc. The transmission part is the image signal channel of the system. In general, the transmission part refers only to the transmission of image signals. However, since the system in addition to the image, but also audio, alarm signals and hard disk video recorder network signals, so the transmission part refers to the sum of the transmission system formed by image transmission and signal transmission. For the transmission of the image, the key requirement is that after the image signal passes through the transmission system, no obvious noise, no obvious distortion and deformation (chrominance signal and brightness signal do not produce obvious distortion), to ensure that the original image signal (image signal output from the camera) clarity and gray level is not significantly reduced, and so on. This requires that the transmission system has good performance in attenuation, introduction of noise, amplitude-frequency characteristics and phase-frequency characteristics. Remote transmission equipment :3G wireless module. For the project to provide remote video and other signals wireless transmission channel, large projects generally use APN or VPDN private network for encrypted transmission, transmission speed is stable, reliable and safe. 2.2.5 Control and display part The control and display part is the "heart" and "brain" of the whole system, which is to realize the function of the whole system. It mainly includes the following functions: correction and compensation of image signal switching of image signal recording of image signal and sound signal preservation of real-time display of all monitoring pictures and playback of video provides standard interfaces for connection with other devices

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