Method and system for realizing coding of plurality of automobile sound boxes based on CAN bus

A technology of CAN bus and car audio, applied in the field of multiple car audio coding based on CAN bus, can solve the problems of not being able to play the advantages and performance of CAN bus, low efficiency, etc., to improve test efficiency, ensure effectiveness, and ensure high efficiency Effect

Inactive Publication Date: 2020-08-25
HUIZHOU DESAY SV AUTOMOTIVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The content of the present invention is to provide a method and system for realizing multiple car audio coding based on CAN bus, which mainly solves the problem that the existing vehicle equipment can only perform one-to-one testing and configuration when it leaves the factory, which leads to low efficiency and cannot Problems of Exerting the Advantages and Efficiency of CAN Bus

Method used

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  • Method and system for realizing coding of plurality of automobile sound boxes based on CAN bus
  • Method and system for realizing coding of plurality of automobile sound boxes based on CAN bus

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Embodiment 1

[0052] Such as figure 1 As shown, in order to solve the above problems, the present embodiment proposes a method for realizing multiple car audio coding based on the CAN bus, which mainly includes the following steps:

[0053] S1, the test tool is connected to different products under test through the CAN bus, and broadcasts coded commands with different node codes to different products under test;

[0054] S2, any product to be tested receives any coding command, obtains the corresponding node code, and responds to the test tool according to the node code;

[0055] S3, the test tool sends an operation command with any node code and operation information;

[0056] S4. After the corresponding product under test receives and executes the operation command, it responds to the test tool.

[0057]Preferably but not limited, when the product under test responds to the test tool in step S2, it will respond with a response coded command related to the coded command, for example, the...

Embodiment 2

[0089] Such as figure 2 As shown, the present embodiment proposes a system based on the CAN bus to realize multiple car audio encodings, mainly including a power supply 10, a test tool 20 and a plurality of products to be tested 30; Each product under test 30 is electrically connected; the test tool 20 is also connected to multiple products under test 30 through the CAN bus.

[0090] Wherein, the power supply 10 is used to supply power to different products under test 30 respectively according to the control of the test tool 20; the test tool 20 is used to send coded commands with different node codes to the product under test 30; the product under test 30, It is used to receive any coding command, and marks itself to be coded as the node code corresponding to the current coding command; it is also used to feed back the node code to the test tool 20; the test tool 20 is also used for the operation command of the convenient email node code; to be The test product 30 is used t...

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Abstract

The invention relates to the technical field of vehicular audio coding., in particular to a method and system for realizing coding of plurality of automobile sound boxes based on a CAN bus, and the method comprises the steps that S1, a test tool is connected with different to-be-tested products through the CAN bus, and broadcasts coding commands with different node codes to the different to-be-tested products; S2, any to-be-tested product receives any coding command, obtains a corresponding node code, and responds to the test tool according to the node code; S3, the test tool sends an operation command with any node code and operation information; and S4, after receiving and executing the operation command, the corresponding to-be-tested product responds to the test tool. The invention mainly solves the problems that the efficiency is low and the advantages and efficiency of the CAN bus cannot be exerted because only one-to-one test and configuration can be performed when the existingvehicle-mounted equipment is subjected to delivery detection.

Description

technical field [0001] The invention relates to the technical field of car audio coding, in particular to a method and system for realizing multiple car audio coding based on CAN bus. Background technique [0002] CAN is the abbreviation of Controller Area Network, which 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 types of data used for communication between 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 "high-speed communication of large amounts of data through multiple LANs", the CAN communication protocol was developed. [0003] The distributed control system based on C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R29/00H04L12/40G06F13/42
CPCG06F13/4282H04L12/40H04L2012/40215H04R29/001
Inventor 方加强
Owner HUIZHOU DESAY SV AUTOMOTIVE
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