A security dynamic control method for intelligent traffic lights based on consortium blockchain technology

Abstract

The invention provides an intelligent traffic light safety dynamic regulating and controlling method based on the alliance block chain technology. A vehicle-mounted unit, a roadside unit, a transportagency and an ACP system are included. The vehicle-mounted unit sends real-time road condition information to the roadside unit, the information is recorded in blocks through pre-selected bookkeepingroadside unit nodes, the transport agency decodes and acquires the road condition information from block chains, an intelligent contract is triggered to be automatically executed, and the duration oftraffic lights is dynamically regulated and controlled by the ACP system through the acquired road condition information. After the traffic lights are regulated and controlled, the reputation value ofthe vehicle-mounted unit is evaluated through the transport agency, and the real-time road condition information and other services can be enjoyed by paying the reputation value. The problem of centralization of traffic light control is solved, high human intervention in the traffic light management and coordination processes is reduced, and financial resources and material resources are saved. Coordination optimization of traffic light management and control is achieved, and the safe and credible communication environment is provided for a vehicle-mounted Ad-Hoc network. Meanwhile, the confidentiality, privacy and non-repudiation of the information are guaranteed.

Description

technical field [0001] The invention belongs to the safety and dynamic control of intelligent traffic signal lamps, and relates to block chain technology in the field of information security, and methods for ElGamal encryption and data security verification. Background technique [0002] Statistics show that the number of registered vehicles will reach 2 billion in the next 10 to 20 years, and the sharp increase in the number of vehicles will lead to a bad traffic environment, serious road congestion, and slow vehicle traffic. The unreasonable configuration of signal lights at intersections is an important factor leading to traffic congestion. At present, traffic signal control mainly includes three types: timing control, induction control and adaptive control. The fixed duration control of signal lights is only suitable for the situation of stable traffic flow. Inductive control is not sensitive to time parameters such as cycle duration. Adaptive control adjusts the durati...

AI Technical Summary

Problems solved by technology

In "IEEE Access" 2018,6 "Privacy-Preserving Trust Model Based on Blockchain for VANETs", Lu Zhaojun et al applied the existence and absence of blockchain technology to realize the update and revocation of public keys, prevent vehicles from sending false information, and protect the identity of vehicles Privacy and security, but frequent update and revocation of private keys can easily cause network congestion and data redundancy

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