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Data scheduling method and system of LIN bus

A bus system and data scheduling technology, applied in the field of communication, can solve the problem that the master node cannot meet the processing requirements

Active Publication Date: 2021-02-12
NANJING SEMIDRIVE TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present application provides a data scheduling method and system of the LIN bus, which is used to solve the problem that a master node in the LIN bus cannot meet the processing requirements

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  • Data scheduling method and system of LIN bus
  • Data scheduling method and system of LIN bus
  • Data scheduling method and system of LIN bus

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Embodiment Construction

[0055] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the following will further describe the embodiments of the present application in detail in conjunction with the accompanying drawings.

[0056] In the related art, a LIN bus system includes a LIN bus, a master node and multiple slave nodes. With the increasing complexity of vehicle electronic systems, a master node cannot meet the increasingly complex processing requirements. In order to solve the above problems, the embodiment of the present application adds at least one additional master node to the LIN bus, so as to improve the architecture of the LIN bus system. The architecture of the improved LIN bus system will be introduced first below.

[0057] Please refer to figure 1 , figure 1 An example is given in which the LIN bus system includes four master nodes. In actual implementation, the number of master nodes in the LIN bus system may be any i...

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Abstract

The embodiment of the invention discloses a data scheduling method and system for an LIN bus, and belongs to the technical field of communication. The method is used in an LIN bus system, the LIN bussystem comprises an LIN bus, a first main node and at least one second main node, the first main node is connected with the LIN bus, and each second main node is connected with the first main node; the method comprises the following steps: a second main node sends a first message to be sent to a first main node; the first main node receives the first message and sends the first message to the LINbus; the first main node acquires a first sending state of the first message from the LIN bus; and the second main node acquires the first sending state from the first main node. According to the embodiment of the invention, the processing pressure of the first main node can be relieved by adding the second main node in the LIN bus system, so that the processing capacity of the LIN bus system is improved, and the flexibility of system design can also be improved.

Description

technical field [0001] The embodiments of the present application relate to the technical field of communications, and in particular to a data scheduling method and system for a LIN bus. Background technique [0002] LIN (Local Interconnect Network) is a low-cost serial communication network widely used in automotive electronics and industrial automation. When applied to the field of automotive electronics, the LIN bus is used to control units such as doors, windows, seats, and lights. [0003] In the related art, one master node and multiple slave nodes can be connected to one LIN bus. When data scheduling is performed on the LIN bus, usually the master node schedules itself and multiple slave nodes for data transmission. Wherein, the master node is usually a separate MCU (Microcontroller Unit, micro control unit). [0004] The processing capability of a master node is limited. With the increase of the complexity of the vehicle electronic system, a master node is gradual...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/40
CPCH04L12/40006H04L12/40195
Inventor 宣林王洋张苑
Owner NANJING SEMIDRIVE TECH CO LTD
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