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Method and device for evaluating vehicle message data model

A message data and vehicle technology is applied in the field of vehicle message data model evaluation to achieve the effect of reducing workload

Active Publication Date: 2020-08-25
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in fact, each car has its own different message data standards, so reverse analysis of data brings a lot of workload

Method used

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  • Method and device for evaluating vehicle message data model
  • Method and device for evaluating vehicle message data model
  • Method and device for evaluating vehicle message data model

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Experimental program
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Embodiment Construction

[0017] The present invention is described below based on examples, but the present invention is not limited to these examples.

[0018] figure 1 is a flow chart of a vehicle message data model evaluation method according to an embodiment of the present invention, such as figure 1 As shown, the method includes:

[0019] Step 101, collecting vehicle message data of a predetermined duration, and dividing the vehicle message data into different data sets;

[0020] Step 102, for the data in each data set, set part of the data as training data, set part of the data as test data, and set the remaining data as verification data, wherein part of the data in the test data is modified to simulate abnormal data;

[0021] Step 103, inputting the training data into a long-short-term memory network (LSTM) to establish a message prediction model;

[0022] Step 104, test the test data according to the message prediction model, so as to obtain the detection rate and false alarm rate of the s...

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Abstract

The invention discloses an evaluation method and device of a vehicle message data model. The method includes the following steps: collecting vehicle message data of a predetermined time length, and dividing the vehicle message data into different data sets; for data in each data set, setting a part of the data as training data, setting a part of the data as test data, and setting the rest of the data as verification data, wherein part of the data in the test data is modified as simulated abnormal data; inputting the training data into a long-short time memory network to establish a message prediction model; testing the test data on the basis of the message prediction model to obtain the detection rate and the false alarm rate of the simulated anomal data; evaluating the message predictionmodel on the basis of the detection rate and the false alarm rate. Compared with prior art, the evaluation method and device have the advantage of reducing the workload of vehicle abnormal data detection.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a method and device for evaluating a vehicle message data model. Background technique [0002] With the development of technologies such as mobile Internet, big data and cloud computing, the speed of the development of the automobile industry towards intelligence and networking is increasing rapidly. With the continuous improvement of automobile intelligence, the problem of automobile network security has gradually emerged. In recent years, car hacking incidents have occurred frequently, and the resulting car recalls have brought huge economic losses to car companies; personal privacy leaks, threats to cars being charged, etc. have also brought serious personal safety problems to car users. [0003] The Controller Area Network (CAN) protocol is a serial communication protocol widely used in automobiles. Information between electronic control units (Electronic Control Unit, ECU) is tr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24H04L29/06H04L12/40
CPCH04L41/145H04L41/147H04L63/1425H04L2012/40215H04L2012/40273
Inventor 余贵珍高哈尔·达吾力王云鹏秦洪懋李宏刚冀浩杰王朋成周云水
Owner BEIHANG UNIV