Car video monitoring method based on mobile network

Abstract

The invention discloses a car video monitoring method based on a mobile network, which is applicable to a car video monitoring system including a vehicle-mounted monitoring device, a central management platform, a remote client and a communication network. The monitoring method comprises that according to the monitoring request of the client, the central management platform awakens the corresponding vehicle-mounted monitoring device remotely. After being activated, the vehicle-mounted monitoring device finishes connection and issues video stream. The central management platform transmits the video stream to the client in order to play in real time. The vehicle-mounted monitoring device is remotely awakened and activated by the central management platform and issues the video stream only when the client has request. The inadequate problem of mobile network resources can be relieved greatly.

Description

technical field [0001] The invention relates to a network video monitoring system, in particular to a mobile network-based vehicle video monitoring method, which is mainly applied to 3G video monitoring and can also be applied to Internet video monitoring. Background technique [0002] Video surveillance is part of the traditional security (defense) system. As a special business of the security system, it has always kept a certain distance from other applications in the IT industry. It is mainly independent small-scale applications, mainly using coaxial cables. analog communication method. With the development of computer technology and the popularization of the network, at present, video surveillance has developed into a network video surveillance system, which is no longer limited to simply completing the processing, transmission, and control of video signals. Information (video / audio / data) provides a comprehensive and complete management and control platform. [0003] W...

AI Technical Summary

Problems solved by technology

This is feasible on a wired network, but it is difficult to apply in a mobile network, because the bandwidth of a wired network is usually predictable, while the environment of a mobile network varies greatly, and the network bandwidth cannot be predicted

Therefore, this video transmission method with prefabricated coding parameters has serious defects: if the code rate is set low, although the transmission can be guaranteed, the video quality is also low, which is difficult to meet the application requirements; if the code rate is set high, it is difficult to guarantee the transmission Effect, especially in the motion coding compression algorithm, each frame depends on the previous frame, and fixed coding cannot guarantee the smoothness of the video

However, the mobile network environment changes greatly, and it is impossible to accurately predict the network bandwidth. Publishing video streams in a fixed mode will not meet the special needs of users. Therefore, different encoding parameters must be adopted according to different situations.

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