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Car networking CAN data acquisition method

A technology for data collection and Internet of Vehicles, applied in transmission systems, electrical components, etc., can solve problems such as inability to flexibly change collection items, and achieve the effects of avoiding malicious acquisition, saving time, and improving compatibility

Active Publication Date: 2017-11-14
WUHAN INTEST ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a CAN data acquisition method for the Internet of Vehicles, which aims to solve the problem that the prior art configuration file is fixed and cannot flexibly change the acquisition items; at the same time, according to Collect the actual needs of vehicle body information items, customize configuration files, and save network bandwidth; in addition, the present invention directly changes configuration files through the server, without manual on-site operations, and improves the protocol matching ability between the vehicle terminal and different vehicles, and the whole process is simple, efficient and Not easy to make mistakes

Method used

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  • Car networking CAN data acquisition method
  • Car networking CAN data acquisition method

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Embodiment Construction

[0037] The present invention will be further described below in conjunction with drawings and embodiments.

[0038] The present invention provides a kind of vehicle network CAN data collection method, with reference to figure 1 , figure 2 and image 3 , taking the background server of the Internet of Vehicles to collect vehicle mileage, vehicle speed, handbrake status, and foot brake status information as an example, the process is as follows:

[0039] Step S1, generating a DBC file and a configuration file for vehicle body information collection according to the vehicle body information collection items;

[0040] Step 1. According to the vehicle CAN bus protocol provided by the manufacturer, generate a DBC file through Vector software:

[0041] The DBC file of the CAN bus is as follows:

[0042] BS_:

[0043] BU_:myECU

[0044] BO_2566909442Message_1:8myECU

[0045] SG_accumulated mileage: 0|32@1+(1,0)[0|0]"km"Vector__XXX

[0046] BO_2566844695Message_2:8myECU

[0047...

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Abstract

The invention provides a car networking CAN data collection method. The method comprises the steps that a DBC file and a configuration file for car body information collection are generated according to the collection item of the car body information; a car networking back-end server sends the configuration file to a vehicle-mounted terminal; the vehicle-mounted terminal collects the car body information data on a bus according to the configuration file; a data package is generated for a car body information data group; the data package is transmitted back to the car networking back-end server; and the car networking back-end server parses the data package to acquire the car body information. According to the invention, the method has the advantages of high adaptability, small dependence on the terminal, high data security and rapid and efficient acquisition of the car body information, is free of manual field operation, is simple and efficient, and is not error-prone; the configuration file is universal, can dynamically match different vehicle models in a car networking system, and can meet the collection requirements of multiple CAN bus interfaces in a vehicle model; and the car networking system has high compatibility.

Description

technical field [0001] The invention relates to a method for collecting CAN data in a vehicle network, and belongs to the technical field of vehicle CAN data collection. Background technique [0002] Existing vehicle body information collection is mainly used in vehicle performance monitoring. During the use of the car, as the mileage increases, the reliability decreases, the economy becomes worse and the failure rate increases. This change process of the car is inevitable and conforms to the law of development, but if the detection is not timely, the car will have problems during driving. Therefore, in the prior art, the data in the CAN bus need to be collected to obtain vehicle body information in order to analyze the performance of the vehicle. [0003] The existing technology is to collect the body information on the CAN bus in the field of automobile performance analysis. The collected body information is fixed, and there is no need to change the configuration file re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08
CPCH04L67/12H04L67/30
Inventor 糜锋李立
Owner WUHAN INTEST ELECTRONICS TECH
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