Vehicle-mounted network intrusion detection method and device based on fast Fourier transform, equipment and storage medium
A Fourier transform and intrusion detection technology, applied in bus networks, secure communication devices, data exchange through path configuration, etc. Detection effect, effect of low false positive rate
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[0038] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.
[0039] like figure 1 and figure 2 As shown, the present invention discloses a vehicle network intrusion detection method based on fast Fourier transform, comprising the following steps:
[0040] S10, setting an alarm frequency threshold for system intrusion detection and a maximum tolerance value for the occurrence time of suspicious events;
[0041] The alarm frequency threshold for system intrusion detection includes the range value obtained by fast Fourier transform of the kernel operating load data of the ECU real-time operating system and the bus load rate data of the in-vehicle ne...
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