Data acquisition method and device of vehicle-mounted terminal

Abstract

The embodiment of the invention provides a data acquisition method and device for a vehicle-mounted terminal. The vehicle-mounted terminal comprises an electronic control unit, a central gateway connected with the electronic control unit, and a vehicle-mounted information entertainment system connected with the central gateway. The vehicle-mounted information entertainment system is connected withexternal storage equipment. The method comprises: an electronic control unit generating message data and sending the message data to a central gateway; the central gateway generating a data packet matched with an Ethernet protocol by adopting the message data, and sending the data packet to the vehicle-mounted information entertainment system; the vehicle-mounted information entertainment systemgenerating data in a preset format by adopting the data packet; and the vehicle-mounted information entertainment system sending the data in the preset format to the external storage device. Accordingto the data acquisition method for the vehicle-mounted terminal, the simple and convenient acquisition method of the CAN / CANFD data is realized without depending on any CAN / CANFD transceiving tool, so that the research cost of the whole vehicle is saved, and the effects of reducing the cost and improving the efficiency are achieved.

Description

technical field [0001] The present invention relates to the technical field of information processing, in particular to a data collection method for a vehicle-mounted terminal and a data collection device for a vehicle-mounted terminal. Background technique [0002] In the process of vehicle development, there will be various problems. In order to analyze and locate these problems, it is necessary to collect CAN (Controller Area Network, controller area network) data of each ECU (Electronic Control Unit, on-board computer) on the vehicle. . At present, most OEMs complete data collection by purchasing dedicated CAN / CANFD (CAN with Flexible Data rate, an upgraded version of CAN) transceiver tools from Tier 1 suppliers. [0003] Although with the development of vehicle Ethernet, the vehicle central gateway supporting CAN, CAN FD, and vehicle Ethernet is becoming more and more mature, but the CAN / CANFD transceiver tools provided by the first-tier suppliers are still relatively ...

AI Technical Summary

Problems solved by technology

[0003] Although with the development of vehicle Ethernet, the vehicle central gateway supporting CAN, CAN FD, and vehicle Ethernet is becoming more and more mature, but the CAN / CANFD transceiver tools provided by the first-tier suppliers are still relatively expensive Each ECU usually requires multiple CAN / CANFD transceiver tools to collect CAN data, which makes the development cost of the whole vehicle high

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