Data acquisition method and equipment and storage medium

A data acquisition and data technology, applied in the computer field, can solve problems such as inability to acquire signals

Pending Publication Date: 2021-01-01
INVT ELECTRIC VEHICLE DRIVE TECH SHENZHEN CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present application provides a data acquisition method, device and storage medium. This application aims to solve the problem that the existing CCP protocol cannot collect some signals with a frequency higher than the communication frequency of the CCP protocol due to the limitation of the communication cycle.

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  • Data acquisition method and equipment and storage medium
  • Data acquisition method and equipment and storage medium

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Embodiment Construction

[0029] In order to better understand the above-mentioned technical solutions, exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0030] The CCP protocol is an ECU calibration protocol based on the CAN bus, which is widely used in the automotive industry. It can transfer data according to a certain communication mode through the DAQ mode of master-slave communication (English full name Data Acquisition Mode, Chinese translation as data acquisition mode). Periodically sent to the host comput...

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Abstract

The invention discloses a data acquisition method, data acquisition equipment and a storage medium. The method comprises the following steps: S1, acquiring data according to a first frequency and storing the data into a target memory; S2, judging whether a triggering event occurs, and if yes, when the data size of the data before triggering and the data size of the data after triggering in the target memory reach a preset proportion threshold value, storing the data before triggering and the data after triggering at the moment, and forming target data; if not, ending; S3, sending the target data to an upper computer, and the sending duration of the target data is larger than the collecting duration of the target data; and S4, when the target data is sent to a preset time point of the sending duration, turning to the step S1. The invention aims to solve the problem that the existing CCP protocol cannot acquire some signals of which the change frequency is higher than the communication frequency of the CCP protocol due to the limitation of the communication period.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a data collection method, device and storage medium. Background technique [0002] CCP protocol (English full name CAN Calibration Protocol, CAN calibration protocol) is an ECU calibration protocol based on CAN bus, which is widely used in the automotive industry. One of its functions is to transfer data according to a certain The communication cycle is sent to the host computer, and the host computer parses the data according to the variable address mapping table, so as to achieve the debugging purpose of capturing variables online for offline analysis. This implementation needs to define several groups of communication cycles, so that variables can be planned to different transmission cycle lists when establishing communication, and each cycle has an upper limit on the number of variables. [0003] However, due to the limitation of CAN communication rate and CPU load, the co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/05H04L12/40
CPCG06F3/05H04L12/40H04L2012/40215
Inventor 李达余凌飞刘健萍刘锐衍
Owner INVT ELECTRIC VEHICLE DRIVE TECH SHENZHEN CO LTD
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