Car data stream obtaining method and system and computer readable memory medium

An acquisition method and acquisition system technology, which is applied in the field of computer-readable storage media and automobile data flow acquisition, can solve the problems of slow refresh time and untimely change of data flow, etc.

Inactive Publication Date: 2017-07-28
LAUNCH TECH CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The main purpose of the present invention is to provide a method, system and computer-readable storage medium for obtaining automobile data streams, aiming to solve the problems of the prior art that multiple data streams are sent cyclically one by one, the data streams do not change in time, and the refresh time is slow

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  • Car data stream obtaining method and system and computer readable memory medium
  • Car data stream obtaining method and system and computer readable memory medium
  • Car data stream obtaining method and system and computer readable memory medium

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Embodiment Construction

[0045] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0046] The present invention provides a method for obtaining automobile data stream, please refer to figure 1 , in the first embodiment, the vehicle data flow acquisition method includes:

[0047] Step S10, receiving a data flow selection instruction, and packaging the data flow selection instruction to generate a first data packet;

[0048]Automotive data flow refers to the data parameters communicated between the electronic control unit (ECU) and sensors and actuators, including information such as coolant temperature, engine speed, engine load, and fuel injection duration per cycle of the engine, which can be read by a diagnostic instrument. Car fault diagnosis provides the basis. When the car breaks down, the fault point of the car can be detected by reading the car data stream; when there is no fault, the worki...

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Abstract

The invention discloses a car data stream obtaining method and system and a computer readable memory medium. The method comprises the steps of receiving data stream selection instructions and packaging the data stream selection instructions into a first data packet; sending the data packet to a lower computer, analyzing the first data packet and then sending the first data packet to a car OBD interface through the lower computer, and obtaining reply data corresponding to the data stream selection instructions returned by the car OBD interface; and receiving a second data packet which is generated by packaging the reply data through the lower computer, analyzing the second data packet and obtaining data streams corresponding to the data stream selection instructions. According to the scheme, a plurality of data stream selection instructions are packaged and are sent to the lower computer, so the lower computer analyzes the instructions and then interacts with the car OBD interface, obtains the reply data returned by the car OBD interface and processes the reply data to obtain the data streams corresponding the data stream selection instructions. The plurality of data streams are prevented from being sent and displayed circularly one by one when the plurality of data streams are checked. The data stream refreshing speed is improved.

Description

technical field [0001] The present invention mainly relates to the technical field of automobile data flow, and in particular, relates to a method and system for obtaining automobile data flow, and a computer-readable storage medium. Background technique [0002] Automotive data flow refers to the data parameters communicated between the electronic control unit (ECU) and sensors and actuators. The data flow stored in the ECU truly reflects the working voltage and status of each sensor and actuator, providing a basis for automotive fault diagnosis , the data stream can only be read by a dedicated diagnostic instrument. Reading the car data stream can detect the working status of each sensor of the car, and detect the working status of the car. Through the data stream, the running data of the car can also be set. The automobile data flow can be used as the input and output data of the automobile ECU, so that the maintenance personnel can know the working condition of the auto...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08
CPCH04L67/12H04L67/14H04L67/565
Inventor 刘均庄文龙
Owner LAUNCH TECH CO LTD
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