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Communication system and communication method based on CAN (Controller Area Network)

A technology of communication system and communication method, which is applied in the direction of transmission system, bus network, digital transmission system, etc., can solve the problems of long development cycle of CAN network and complex configuration tools, etc., and achieve the effect of real-time reliable data transmission and convenient realization

Active Publication Date: 2013-07-03
SHENZHEN INOVANCE TECH +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a CAN network-based communication system and method for the above-mentioned problems of long CAN network development cycle and complicated configuration tools

Method used

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  • Communication system and communication method based on CAN (Controller Area Network)
  • Communication system and communication method based on CAN (Controller Area Network)
  • Communication system and communication method based on CAN (Controller Area Network)

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Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] Such as figure 1 Shown is a schematic diagram of an embodiment of the communication system based on the CAN network of the present invention. The communication system in this embodiment includes a master station 10 and a plurality of slave stations 20 (only one is shown in the figure) located in the CAN network, wherein the master station 10 and the slave stations 20 are respectively composed of device nodes, and the device nodes can For various small embedded devices, such as programmable logic controllers (ie PLCs), frequency converters, servo controllers, etc.

[0025] The above-mention...

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Abstract

The invention provides a communication system based on a CAN (Controller Area Network). The system comprises a master station and a plurality of slave stations in a CAN network. The master and slave stations respectively consist of equipment nodes. The master station comprises a monitoring unit, a management unit, a configuration unit and a first data unit. The slave station comprises a command responding unit, a second data unit and a configuration responding unit. The invention further provides a corresponding communication method. According to the system and the method, real-time reliable data transmission can be realized in small and medium-sized industrial automatic applications, and meanwhile, the defect of difficulty in development caused by large and all inclusive regulation in existing CANopen protocol is abandoned. The system and the method are conveniently realized on small and medium size equipment.

Description

technical field [0001] The present invention relates to CAN bus network, more specifically, relates to a communication system and method based on CAN network. Background technique [0002] CAN (ControllerArea Network) bus is a serial communication network developed by Bosch in Germany for automotive electrical control systems, which effectively supports distributed control and real-time control, and belongs to the field bus category. The CAN bus adopts many new technologies and unique designs, which make it have outstanding advantages in terms of reliability, real-time and flexibility: it supports multiple master nodes, and each node obtains the right to use the bus through bus arbitration; the communication rate is high, and the maximum The speed can reach 1Mbps; the reliability is high, and the bus protocol has a perfect error handling mechanism. These excellent performances enable the CAN bus to maintain high-speed development all over the world. CAN's information trans...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/40H04L12/26H04L1/22
Inventor 李剑元远胜凌晓军
Owner SHENZHEN INOVANCE TECH
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