False data injection attack detection method of intelligent networked automobile automatic cruise system

Abstract

The invention discloses a false data injection attack detection method of an intelligent networked automobile automatic cruise system, aiming at solving the problem of false data injection attack existed in the process of network transmission of sensor measured data of the intelligent networked automobile automatic cruise system. Firstly, a discrete-time state space model of the networked automobile automatic cruise system is established, and a filter value of the measured data at each moment is calculated according to the Kalman filter formula; then the sum of noise standard deviations of measuring sensors of the automatic cruise system is taken as a detection threshold; if no data injection attack exists, the Kalman filter value gradually tends to a true value; and when the error betweenthe Kalman filter value and the measured value exceeds a given threshold, it is detected that a false data injection attack is existed at the intelligent networked automobile automatic cruise system.The invention only needs to calculate the state filter value of the intelligent networked automobile automatic cruise system in real time according to the newly obtained observation data, and processthe observation result in real time online, so that the accident that the state data of the intelligent networked automobile automatic cruise system is attacked can be quickly detected.

Description

technical field [0001] The invention belongs to the field of automatic cruise control of intelligent networked vehicles, and relates to a false data injection attack detection method for the automatic cruise system of intelligent networked vehicles. Background technique [0002] With the development of science and technology, cars are becoming more and more intelligent, not only adding advanced sensors, controllers and other devices to detect the real-time status of the car, but also being able to connect to the network, and report these real-time status to the server equipment that manages the car for analysis, and receive Execute the vehicle control command issued by the server device, so that the Internet of Vehicles technology can be realized. The Internet of Vehicles is a specific application of the Internet of Things in the automotive industry. Each vehicle realizes real-time communication between vehicles, vehicles and data platforms through wireless network, radio an...

AI Technical Summary

Problems solved by technology

This attack often interferes with the computer's guidance of the vehicle, such as causing false acceleration and deceleration of the vehicle during cruise

Specifically, when there are two vehicles cruising, the computer can get a larger distance between the two vehicles by interfering with radar and other speed sensors, or adding false data to the sensor data, which will cause the computer to mislead the automatic patrol car. (that is, let the car behind accelerate to catch up with the car in front), which eventually leads to a collision between the two cars; on the contrary, when the two cars approach and the car behind needs to brake, the hacker artificially interferes with the sensor data by attacking the automatic cruise system with false data, so that The computer misrecognized that the two vehicles were still at the normal distance between them, so no braking measures were taken, which eventually led to a rear-end collision between the two vehicles

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