The Design Of Distributed Embedded ACCS HIL Simulation Platform And CAN-Bus Communication Research

After system on a chip was advanced, the embedded system was designed from IC to the integrated system. This day the design of the embedded system lies in the kernel phase. This article is based on the platform used in the ARM7 chip SoC system. The more pieces single nuclear Philips LPC2119 ARM7TDMI boards have built the HIL distributed embedded ACCS emulation platform. The HIL distributed embedded ACCS emulation platform is the multi-processor, multi-node distributed embedded platform. The article analysed the building of the whole platform and the principles and came true the real-time simulation with a background of vehicles travelling status from simple nodes system to complex nodes system.CAN Bus as a typical communication networks had a number of applications in distributed control areas because of its high reliability and strong real-time. It has TT and ET in CAN network system, the advantages and disadvantages of TT and ET were analysed. In the basis with the improvement and perfect, TTCAN with CAN protocol embedded a time trigger mechanism was advanced. TTCAN improve the system fault, reliability and real-time. At the same time for improving the system reliability and stability, a double CAN Bus communication network system was built, this article did a comparison and analysis of real time simulation results on single CAN Bus and double CAN Bus systems.This article elaborated the distributed hardware simulation platform made of Soc and the communication way through the CAN network,which are being or will be applied in the aviation, transportation, the industry control domain and so on .Hoped these discussions and the research can provide some practical values for these domains.