The Research And Realization Of PROFIBUS-MVB Gateway Main Function Modules

With the development of control technology and secure communication technology, a large number of distributed unit which has interoperability and mutual exchange abilities has been used on train control system. Through train communication network, all the distributed unit work together to complete a safe vehicle control task. The CTCS-3train safety control technology platform used the distributed modular structure and selected the high security and reliable PROFIBUS and MVB bus. So some of the control unit needs to access MVB network and PROFIBUS network. As the access point, PROFIBUS-MVB gateway is getting more and more attention.This thesis is based on PROFIBUS and MVB technology, research and understanding of the needs of the PROFIBUS-MVB gateway device. Then according to the embedded technology put a design to PROFIBUS-MVB gateway. At last, work out the system requirements analysis, chip selection, schematic circuit design, software design and system testing to verify the feasibility.This thesis firstly gives a brief introduction of the train communication network and the development of embedded systems. Secondly, according to the EN50170and IEC61375specifications and the actual needs of users to work out the needs and design program of PROFIBUS-MVB gateway. Thirdly, worked out the detail of the PROFIBUS-MVB gateway hardware schematics, including PROFIBUS and MVB interface module design, power management module design, system operation monitoring module design, and Cortex-M3embedded controllers design. Fourthly, introduced the PROFIBUS-MVB gateway embedded software design, including the system driver design, transplantation of the real-time systems, real-time communication protocol stack design, etc. Then after the software is designed, the gateway system is tested and the test results are analyzed. At last, summarized and discussed the further work of this thesis.