Real-time map updating system and method based on trust management, and Internet-of-vehicles terminal

Abstract

The invention belongs to the technical field of real-time map updating, and discloses a real-time map updating system and method based on trust management and an Internet-of-vehicles terminal. A vehicle is registered in a law enforcement agency, and identity information is reserved in the law enforcement agency; the vehicle sends a request for updating the own public key to a law enforcement agency; road condition information is collected, and a vehicle accurately uploads surrounding road conditions to fog nodes to improve trust values; meanwhile, the fog node needs to carry out identity verification on the vehicle before receiving the message from the vehicle; the fog node verifies the road condition information uploaded by the vehicle by using a Bayesian inference model, and sends the road condition information to a real-time map updating server according to a verification result; the fog node generates a corresponding rating for each message source vehicle, so that the timeliness and the accuracy of map updating are realized; when the trust value of the vehicle is lower than the preset threshold value, the vehicle cannot continue to enjoy the service provided by real-time map updating, and Sybil attacks are avoided.

Description

technical field [0001] The invention belongs to the technical field of information processing of the Internet of Vehicles, and in particular relates to a real-time map update system and method based on trust management, and an Internet of Vehicles terminal. Background technique [0002] Currently, the closest existing technology: With the development of the automobile industry and urbanization, the number of vehicles is increasing rapidly. It is estimated that there are currently more than 1 billion cars registered worldwide. This number will double in the next 10 to 20 years. This phenomenon has led to the further aggravation of key problems in modern transportation systems, such as traffic congestion. Although investment in road construction can alleviate traffic congestion, the huge construction costs and limited land availability make this approach inadvisable to a certain extent. . To solve this problem, an effective method is to update the map in a timely and accura...

AI Technical Summary

Problems solved by technology

[0005] (1) The existing electronic map update system lacks the authenticity verification of the road condition information reported by the vehicle

[0006] (2) The existing electronic map fine-grained system lacks the wrong investigation of malicious vehicles intentionally uploading false road condition information

[0007] (3) The existing map

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