High-speed CAN (Controller Area Network) bus data converting device and method

Abstract

The invention provides a high-speed CAN (Controller Area Network) bus data converting device and method, and belongs to the technical field of data processing. The high-speed CAN bus data converting device comprises a control module, a clock module, a storage module, a transmission module, a bus analyzing module and a bus receiving-transmitting module, wherein the bus analyzing module is connected with the control module, and used for reading CAN bus data; the bus receiving-transmitting module, the storage module and the transmission module interact with the control module respectively; the clock module is connected with the control module, and used for generating a time signal according to time of the CAN bus data read by the bus analyzing module; the control module is used for generating a timestamp according to the time signal, and encapsulating the timestamp and the corresponding CAN bus data; and the encapsulated CAN bus data carry the timestamp. Through adoption of the high-speed CAN bus data converting device and method, the problem of influence on the time sequence and timeliness of the bus data since time of the CAN bus data is recorded by taking time generated by an upper computer as a reference is solved, and convenience is brought to subsequent proceeding of a CAN communication time sequence analysis or a response time limit analysis.

Description

technical field [0001] The invention relates to the technical field of data processing, in particular to a high-speed CAN bus data conversion device and a conversion method thereof. Background technique [0002] CAN (Controller Area Network, Controller Area Network) is an ISO international standardized serial communication protocol. In the automobile industry, due to the requirements of safety, comfort, convenience, low pollution, and low cost, various electronic control systems have been developed. Since the data types used for communication between these systems and the requirements for reliability are not the same, there are many cases composed of multiple buses, and the number of wiring harnesses also increases accordingly. In order to meet the needs of reducing the number of wiring harnesses and carrying out high-speed communication of large amounts of data through multiple LANs, in 1986, the German electrical company Bosch developed the CAN communication protocol for ...

AI Technical Summary

Problems solved by technology

However, the current industry bus analysis, calibration, acquisition and other equipment functions are separated, and each functional equipment is independent

The equipment cost is extremely high, which is not conducive to the popularization and application of CAN bus technology

The prior art equipment uses the time generated by the host computer as a reference to record the time of the CAN bus data, which will affect the timing and timeliness of the bus data

The larger the amount of data, the lower the performance of the upper computer, the greater the impact, which is not conducive to later analysis

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