Method and device for in-vehicle network streaming media prefetching
A vehicle-mounted network and streaming media technology, which is applied in the video application field of the mobile Internet, can solve the problems of reducing the feasibility of the solution, sharing streaming media resources with low efficiency, etc., and achieve high feasibility, accuracy and stability, and the effect of accelerating the download process
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Embodiment 1
[0060] Such as figure 1 As shown, it is a flow chart of the vehicle network streaming media prefetching method provided by the embodiment of the present invention, wherein,
[0061] Step 10, the vehicle detects the neighbor vehicles within its wireless signal coverage, and calculates the relative stability between the neighbor vehicles and the vehicle.
[0062] In an urban area with a non-linear route, the vehicles are equipped with GPS receivers and a wireless network interface. The embodiment of the present invention realizes "location awareness" by utilizing a GPS receiver, and each vehicle V i The geographic location of each neighbor vehicle in the immediate neighbor region (INR) can be obtained. On-board wireless network interface supports vehicle V i The transmission of various data and the interaction of information with its neighbor vehicles realize V2V communication. Not only can realize the transmission of streaming video data, but also can make V i Get status i...
Embodiment 2
[0115] Such as image 3 As shown, the embodiment of the present invention provides a vehicle-mounted network streaming media prefetching device, which includes a detection unit 100, a stability calculation unit 200, a request unit 300 and a prefetch sending unit 400, specifically as follows:
[0116] The detection unit 100 is configured to detect neighboring vehicles within the coverage range of the vehicle's wireless signal.
[0117] The stability calculation unit 200 is used to calculate the relative stability between the neighbor vehicle and the vehicle.
[0118] The requesting unit 300 is configured to request prefetching of video content from neighboring vehicles with high relative stability.
[0119] The prefetch sending unit 400 is used to prefetch video content and send it to the vehicle.
[0120] In particular, the prefetch sending unit 400 here actually works according to the request when the device is a neighbor vehicle and is requested to prefetch video content. ...
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