Method and system for network attack detection at intersection of Internet of Vehicles and Internet of Things

Abstract

The present invention relates to a method and system for network attack detection at intersections of Internet of Vehicles and Internet of Vehicles. The method specifically includes: acquiring SPaT estimation information through an estimation step, collecting SPaT actual information, and inputting the SPaT estimation information and SPaT actual information into the trained long-term and short-term Memory network, to obtain the probability of network-connected intersections being attacked by the network; the estimation steps are as follows: obtain the trajectory data of connected vehicles, segment the trajectory data of connected vehicles, and determine the first-end connected vehicles, terminal connected vehicles and cycle breakpoints Interval, the first connected car is the first connected car that enters the intersection in a cycle of the lane signal display time series, the last connected car is the previous car before the first connected car, and the cycle breakpoint interval is the end The time interval when the networked vehicle and the first networked vehicle behind the terminal networked vehicle pass through the stop line of the intersection successively. Compared with the prior art, the invention has the advantages of wide application range, strong timeliness, good safety and the like.

Description

technical field [0001] The invention relates to a vehicle networking and vehicle-road coordination technology, in particular to a network attack detection method and system for a vehicle network network intersection. Background technique [0002] The Internet of Vehicles system is mainly composed of three parts: Internet-connected vehicle CV, control platform CP and Internet-connected infrastructure. Netlink infrastructure includes roadside unit RSU and netlink signal CS. Networked signal CS refers to a signal light that has the function of traffic information transmission and is controlled by the connected vehicle system. [0003] The logic of information transmission in the Internet of Vehicles system is as follows: image 3 As shown, at a networked intersection in a typical V2I system, signal phase and timing SPaT information is broadcast from CS to CV to help CV make decisions. Each CV is equipped with an on-board unit (OBU). OBU broadcasts the basic security informat...

AI Technical Summary

Problems solved by technology

However, the existing methods have the following shortcomings: These methods focus on the study of road traffic safety, not intersection traffic safety; these methods are only suitable for the CV permeability environment between small cells, and perform poorly for the environment under low permeability conditions; These methods are more used to prevent the occurrence of attacks, and there are fewer detection methods for attacks that have already occurred

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