Vehicle-mounted bus signal detection method and device, vehicle and storage medium

Abstract

The embodiment of the invention discloses a vehicle-mounted bus signal detection method and device, a vehicle and a storage medium. The method comprises the following steps: if a vehicle-mounted bus signal is received, preliminarily detecting whether the vehicle-mounted bus signal is initiated by a current driver or not according to a basic protection index pointed by the vehicle-mounted bus signal; and if yes, continuing to detect whether the vehicle-mounted bus signal is initiated by the current driver based on the historical driving behavior of the current driver. According to the technical scheme provided by the embodiment of the invention, the accurate detection of the vehicle-mounted bus signal is realized without additionally occupying the bus bandwidth, and the communication efficiency of the vehicle-mounted bus signal is enhanced on the basis of ensuring the safety protection of the vehicle-mounted bus signal; and meanwhile, whether any vehicle-mounted bus signal is initiated by the current driver or not can be detected by using the historical driving behavior of the driver, independent protection development does not need to be performed on various vehicle-mounted buses on the vehicle, and the comprehensive coverage of vehicle-mounted bus signal detection protection is greatly improved.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of vehicle data control, and in particular to a detection method, device, vehicle and storage medium of a vehicle bus signal. Background technique [0002] With the rapid development of vehicle intelligent automation technology, the vehicle bus network will be directly connected to the engine, brake and body controller on the vehicle, and then the vehicle's driving will be controlled through the vehicle bus signal received by the vehicle bus network. At this time, by breaking through the vehicle bus network, the attacker can remotely control the vehicle's acceleration, braking, and steering, which poses a great danger to high-speed vehicles. [0003] The current protection methods of the vehicle bus network are mainly as follows: 1) Encrypt the information transmitted on the vehicle bus to prevent the attacker from inputting forged instructions, but information encryption will take ...

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Problems solved by technology

[0003] The current protection methods of the vehicle bus network are mainly as follows: 1) Encrypt the information transmitted on the vehicle bus to prevent the attacker from inputting forged instructions, but information encryption will take up additional bandwidth and affect real-time performance. Higher node communication efficiency is required; 2) Restrict data access of the vehicle bus network to protect important vehicle bus signals from being tampered with, but it is necessary to separate the bottom layer and upper layer software of the vehicle, and implement corresponding security area access at the bottom layer 3) Use machine learning method to distinguish normal signals and abnormal signals on each vehicle bus through the network characteristics of various vehicles. Although abnormal signals can be identified more accurately, it is necessary to Various bus technologies such as CAN, LIN, LVDS, and MOST perform machine learning separately, which cannot fully cover the network characteristics of various vehicle buses, and there is a very high development cost

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