Method, device and system for downloading programs based on vehicle-mounted terminal

Abstract

The invention provides a method, a device and a system for downloading programs based on a vehicle-mounted terminal. The method comprises that a first vehicle-mounted terminal receives a broadcast message which is transmitted by at least one vehicle-mounted terminal within the communication range of other vehicle-mounted terminals, the broadcast message comprises a vehicle-mounted terminal mark, a name of a program which can be downloaded and a sequence number of a downloaded program content data piece which corresponds to the program name, all broadcast messages which are received currently are inquired through the first vehicle-mounted terminal in accordance with the name of the first program to be downloaded, a vehicle-mounted terminal which transmits the broadcast message containing the first program name serves as a second vehicle-mounted terminal, and the program content data piece of the downloaded program of which is marked by the sequence number sequentially can be obtained from the second vehicle-mounted terminal. The communication bandwidth among cars is used completely to conduct multimedia information interaction, the communication number of cars and roadside stations is reduced and the roadside station bandwidth resource is saved.

Description

technical field [0001] The embodiment of the present invention relates to the technical field of intelligent transportation, in particular to a program download method, device and system based on a vehicle terminal. Background technique [0002] With the development of intelligent transportation and mobile communication technology, more and more vehicle-mounted terminals can access the Internet, and the vehicle-mounted terminal can obtain the required streaming media information from the corresponding server through the roadside base station according to the program downloaded by the user. . However, due to limited bandwidth resources, especially streaming media are high-bandwidth services, as more and more cars communicate with roadside base stations, a large amount of bandwidth resources of roadside base stations will be occupied, causing the load of roadside base stations to reach bottleneck. Contents of the invention [0003] In view of the above-mentioned defects in...

AI Technical Summary

Problems solved by technology

However, due to limited bandwidth resources, especially streaming media is a high-bandwidth service, as more and more cars communicate with roadside base stations, a large amount of bandwidth resources of roadside base stations will be occupied, resulting in the load of roadside base stations reaching bottleneck

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