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1. (WO2018120617) DATA COLLECTION METHOD BASED ON AUTOMOBILE CAN BUS DATA COLLECTION SYSTEM

Pub. No.:    WO/2018/120617    International Application No.:    PCT/CN2017/085823
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Fri May 26 01:59:59 CEST 2017
IPC: H04L 12/40
H04L 29/08
Applicants: GUANGZHOU ROADPASSION ELECTRONICS TECHNOLOGY CO., LTD.
广州路派电子科技有限公司
Inventors: ZENG, Xianwei
曾宪玮
Title: DATA COLLECTION METHOD BASED ON AUTOMOBILE CAN BUS DATA COLLECTION SYSTEM
Abstract:
The present invention relates to a data collection method based on an automobile CAN bus data collection system. The method is characterized in that data collection is carried out by an automobile CAN bus data collection system; and the automobile CAN bus data collection system comprises a system CAN bus, a CAN driver, a CAN module, and an SD card module, an LED module and an upper computer interaction module, respectively connected to the CAN module, these being successively connected. In the present invention, all data sent by a CAN bus is placed in the same ring buffer, and data reading and writing can be concurrently executed by using the ring buffer, thereby facilitating the usage and management of a cache and improving the communication efficiency and communication capability of the CAN bus. Moreover, in an upper computer, a required time and data sent by the CAN bus are checked by using a command set by this system, thus, the real-time performance and reliability of the system are improved, the communication efficiency is improved, and requirements for actual application can be sufficiently satisfied.