Intelligent traffic light safety dynamic regulating and controlling method based on alliance block chain technology
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A technology for intelligent traffic and traffic signals, applied in the field of ElGamal encryption and data security verification, which can solve the problems of redundancy, private key network congestion data, etc.
Inactive Publication Date: 2019-05-28
徐州虹智智能科技有限公司
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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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Embodiment 1
[0096] Embodiment 1: The vehicle-mounted unit sends information related to road conditions for the traffic department to safely regulate and control signal lights. which is Figure 5 The corresponding steps are as follows:
[0097] (1) On-board unit OBU i Request to join group, OBU i to RSU i send join request
[0098] (2)RSU i Verify the OBU first i Identity, if OBU i As a legal vehicle-mounted unit, OBU is allowed i Join the group and become a group member, submit to OBU i send Otherwise the agreement is terminated. RSU i Use the received public keys of s group members to calculate using the Chinese remainder theorem where Q i Q' i ≡1(modq i ), i=1, 2,..., s, publish D.
[0099] (3) On-board unit OBU i Using the encryption parameters of the TS of the transportation department (g TS ,λ TS ) encrypted traffic information Including the location of the vehicle, whether the road is congested, and the type of vehicle. Encrypted traffic ciphertext On-boa...
Embodiment 2
[0111] Embodiment 2: The specific implementation process of obtaining real-time road conditions by the vehicle-mounted unit. which is Image 6 The corresponding steps are as follows:
[0112] (1)OBU i The process of joining a group and becoming a group member is the same as steps (1)-(2) in Embodiment 1.
[0113] (2) On-board unit OBU i Want to know more about Roadside Units (RSUs) j Road condition information of a road section within the range, OBU i Use RSUs j encryption parameters for Encrypt service request information, including road congestion, traffic accidents, etc. After encryption, the service request ciphertext is obtained On-board unit OBU i Use group member private key calculate
[0114] (3) On-board unit OBU i to RSU i Send service request message Where T represents the current time, which can be used to prevent replay attacks.
[0115] (4) On-board unit OBU i Pay the reputation value to the smart contract to prevent false requests. If the v...
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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...
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