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A hybrid scheduling method for CAN bus control network

A CAN bus and control network technology, applied in the information field, to avoid delay, have high existence value, and ensure safety.

Inactive Publication Date: 2019-01-08
ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a hybrid scheduling method of CAN bus control network, which is used to solve the problem of data time delay of CAN bus control network existing in the prior art

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  • A hybrid scheduling method for CAN bus control network
  • A hybrid scheduling method for CAN bus control network
  • A hybrid scheduling method for CAN bus control network

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Embodiment Construction

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] A hybrid scheduling method for a CAN bus control network, comprising the following steps:

[0026] (1) According to the CAN protocol and using the first two digits of the identifier field, the information frames in the CAN bus control network are divided into emergency hard real-time information, ordinary hard real-time information, so...

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Abstract

The invention relates to a hybrid scheduling method of a CAN bus control network, which relates to the field of information technology. The invention is used for solving the problem of data delay of CAN bus control network existing in the prior art. A hybrid scheduling method for CAN bus control network comprises the following steps: (1) dividing information frames in the CAN bus control network into emergency hard real-time information, common hard real-time information, soft real-time information and non-real-time information according to CAN protocol and using the first two bits of marker field; (2) scheduling the emergency hard real-time information and the common hard real-time information through a dynamic EDF algorithm, and scheduling the non-real-time information of the soft real-time information through a DM algorithm. The utility model has the advantages that the problem of data delay in the prior art can be solved and the reliability in the control process can be improved.

Description

technical field [0001] The invention relates to the field of information technology, in particular to a hybrid dispatching method of a CAN bus control network. Background technique [0002] CAN bus is one of the most widely used field buses in the world. It is a serial communication network that can effectively support real-time control or distributed control. CAN bus is used as a low-level monitoring to solve real-time and reliable data exchange between test and control. . [0003] In the prior art, there is a problem of data delay in the CAN bus control network, and the delay of some critical high-level data may even affect the safety of operations, reducing the reliability of, for example, production line control. [0004] Therefore, there is a problem of data delay in the CAN bus control network in the prior art. Contents of the invention [0005] The purpose of the present invention is to provide a hybrid scheduling method of the CAN bus control network, which is us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/403H04L12/865H04L12/40H04L47/6275
CPCH04L12/403H04L47/6275H04L2012/40215
Inventor 路小敏
Owner ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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