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LIN (local interconnect network) communication scheduling setting method

A technology of communication scheduling and communication cycle, which is applied to the LIN network communication and communication field of automobiles. It can solve the problems of complex scheduling cycle modification process and frequent code changes, and achieve the effect of preventing a lot of repeated work, easy implementation, and shortening cycle time.

Active Publication Date: 2015-05-20
GUANGZHOU AUTOMOBILE GROUP CO LTD +1
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Problems solved by technology

[0007] In order to solve the problem that the modification of the scheduling cycle of the existing LIN communication scheduling requires software code modification, testing, and communication matching, etc. each time, resulting in complex modification process of the scheduling cycle, frequent code changes, and a large amount of repetitive work, the present invention The embodiment provides a LIN communication scheduling setting method that can simplify the modification process

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  • LIN (local interconnect network) communication scheduling setting method
  • LIN (local interconnect network) communication scheduling setting method
  • LIN (local interconnect network) communication scheduling setting method

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Embodiment

[0022] In order to make it easier for readers to understand the present invention, a brief introduction to the LIN network is given first. The LIN bus is a low-cost, low-speed serial communication bus for low-end distributed applications in automobiles. The resulting communication network is called a LIN network. Such as figure 1 As shown, the LIN network is generally used as the lower network of the CAN network and is a supplement to the CAN bus. It is suitable for body systems that do not require high bus performance, such as the connection and control of smart sensors and actuators such as doors, windows, and lights. The LIN network consists of a unique master node 1 and several slave nodes 2. The master node 1 controls the access to the transmission medium, and the slave node 2 only responds to the command of the master node 1 without arbitration and conflict management mechanisms. The number of nodes of the LIN bus generally cannot exceed 16, otherwise, the increase of n...

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Abstract

An embodiment of the invention provides an LIN (local interconnect network) communication schedule setting method which is simplified in modifying process, aiming to solve the problems of complex scheduling period modifying process, frequent code changing and a large amount of repeated work of existing LIN communication scheduling. The LIN communication scheduling setting method includes: setting a communication period of every node in an LIN network to be a variable on a host node of the LIN network and configuring a diagnosis configuration service on the host node; modifying the communication period of every node by the diagnosis configuration service when a scheduling period of LIN communication scheduling needs to be modified; acquiring the modified scheduling period of the LIN communication scheduling according to the modified communication period of every node, so that the host node can perform scheduling according to the modified scheduling period. The LIN communication schedule setting method has the advantages of more simplicity and easiness in scheduling period modifying process, no requirement for frequent code modifying and prevention of large amount of repeated work.

Description

technical field [0001] The invention relates to the field of communication, in particular to the field of LIN network communication on automobiles. Background technique [0002] With the rapid development of automotive electronics technology, there are more and more electrified components on the car. In order to simplify the connection between automotive electrical components and improve the reliability of the system, the vehicle bus technology has also been applied and developed. Different buses have different applications in vehicles according to their cost and application fields, such as CAN (English full name: Controller Area Network, Chinese full name: Controller Area Network) bus is used in power and body control systems; MOST (English full name: Controller Area Network) bus is used in power and body control systems; Full name: Media Oriented System Transport, Chinese full name: media-oriented system transmission) bus is used in infotainment systems; LIN (English full...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L12/28
Inventor 黄少堂张雁英程艳阶钱三平智慧
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD
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