Road condition early warning method and system based on block chain in vehicle-mounted network
An in-vehicle network and block chain technology, which is applied in the traffic control system, transmission system, traffic control system of road vehicles, etc., can solve the problems that are difficult to meet the real-time and reliability of road condition warning messages
Active Publication Date: 2019-04-05
BEIJING JIAOTONG UNIV
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Problems solved by technology
[0004] At present, most of the existing road condition warning messages are transmitted using multicast routing protocols, which is difficult to meet the real-time and reliability of road condition warning messages.
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[0050] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0051] In order to facilitate the understanding of the embodiments of the present invention, several specific embodiments will be taken as examples for further explanation below in conjunction with the accompanying drawings, and each embodiment does not constitute a limitation to the embodiments of the present invention.
[0052] figure 1 It is a schematic flow chart of the block chain-based road condition early warning method in the vehicle network of the present invention; figure 2 It is a connection schematic diagram of the road conditio...
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The embodiment of the invention provides a road condition early warning method and system based on a block chain in a vehicle-mounted network. The road condition early warning method based on the block chain in the vehicle-mounted network comprises the following steps that road condition information are separately generated by at least two vehicles on a road in the vehicle-mounted network when a road traffic accident or a road jam is monitored, and the right to forward the road condition information is contended for; a first vehicle contending for the right to forward the road condition information forwards the generated summary of the road condition information to other vehicles on the road to request the other vehicles to sign the summary of the road condition information, and forwards the signed summary of the road condition information to a first roadside unit; the first roadside unit receives the signed summary of the road condition information and verifies and signs the signed summary of the road condition information; when the signature verification is successful, the first roadside unit forwards the summary of the road condition information to other roadside units in the vehicle-mounted network, forwards the summary of the road condition information to a cloud, and the cloud stores the summary of the road condition information in a block chain mode.
Description
technical field [0001] The invention relates to a road condition early warning scheme based on block chain technology in a vehicle network, in particular to a road condition early warning method and system based on a block chain in a vehicle network. Background technique [0002] The vehicular network is a special mobile ad hoc network with most of the characteristics of the mobile ad hoc network. There are thousands of nodes equipped with wireless communication functions in the vehicular network (these nodes are mostly composed of vehicles and roadside units). These wireless nodes communicate in a multi-hop manner in the vehicular network. In the vehicle network, each vehicle node has three roles (sender, receiver and router) to send and receive information in the vehicle network, which creates a convenient and comfortable traffic condition for people, which increases the enthusiasm of communication between vehicles , can also accurately detect road conditions (vehicle con...
Claims
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IPC IPC(8): G08G1/0967H04L9/32H04L9/08H04L9/06
CPCG08G1/096783G08G1/096791H04L9/0643H04L9/0869H04L9/3247
Inventor 赵佳李春燕
Owner BEIJING JIAOTONG UNIV