The Design And Application Of An Interconnection System Between CAN-bus And Ethernet

The Internet connects the office systems worldwidely with the communication systems and that makes it possible for the remote access to bottom information. At the same time, the field bus provides a foundation for the field devices to connect to the Internet directly. Based on the research of Ethernet connecting solution of CAN-bus, an interconnection system between CAN-bus and Ethernet is accomplished in the thesis, which is initialized with MC68HC908GZ60 MCU, an 8-bit micro-controller, and is successfully applied in a remote data collection system.Firstly, some background information and conception related to the thesis are introduced. Secondly, the design idea and the implementing method of hardware and software of the interconnection system hosted by MC68HC908GZ60 are described in detail. The system takes MSCAN08 module to achieve an embedded CAN-bus interface and a RTL8019AS chip to complete an embedded Ethernet interface. Then the description about design of a protocol gateway's hardware and software and some key points of the implementation are given. Finally, the interconnection system is applied in the collection system of Renesas Corporation in Suzhou, which gathers devices' running percentage data. In this system, devices located in field are connected each other by CAN-bus, while the CAN-bus is connected to the information network of the corporation via the protocol gateway, thus the remote data collection system is accomplished. Some issues about anti-jamming, testing and experience of project development are also presented. Further more, the application of industrial Ethernet in remote data collection is discussed.