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dior sunglasses women, Traditional fixed-point-board video surveillance of vehicles only to save the video recording, in the 2G environment (GP RS / EDGE / CDMA), some manufacturers try to make pictures, video, real-time network transmission. dior sunglasses discount , Photos occupancy rate of transmission of the network low, generally 10 seconds or so can picture net return center; video network transmission on the network requirements are higher, 2G network environment can only transmit a low frame rate video images. dior sunglasses women ,

With the growing popularity of 3G networks, the 3G network environment, network bandwidth is doubled to meet the high frame rate, high image quality video data transmission needs. To the original simple video-based vehicle video surveillance Solutions Gradually to the systematic, network, platform-based direction. As the mobility of vehicles, vehicle remote video browsing users, vehicles GPS Satellite positioning, and the vehicle terminal needs to interact with the platform data is particularly urgent. The following on-board video surveillance system-level solutions Technology Direction of light as paper.

One car video monitor system-level solutions, analysis of the status and needs
1. The demand for wireless network adaptability
Car Wireless Video Surveillance System Video Monitoring with the traditional fixed points that are distinctly different:

1) terminal IP address is not fixed, there Firewall Restrictions; operators assigned to the wireless terminal IP address may change at any time and for the firewall restrictions, closed parts of the port;

2) network bandwidth fluctuations, the number of wireless networks where the number of users, geographical differences, and network optimization and other issues affecting the future level of quality, real-time changes in network bandwidth, or even moment to zero, which requires car video terminal can adapt This pattern of changes in network bandwidth;

3) real-time sports-car terminals, base stations, switching frequency, exercise also resulted in the video transmission on the unpredictability of wireless networks. dior sunglasses sale , In order to enhance the car video wireless transmission of results, the characteristics required under the above video encoding algorithm, to improve the network transmission protocol.

2. Data management requirements of multi-level
The core of large-scale video surveillance system needs is the ability to multi-level management, car video surveillance system should have the following functions:

1) allocation of management rights, for security considerations, it is necessary categories of users, to enjoy different rights, allocation of different tasks;.