Design of Cortex-M3-Based Semiautomatic Block Fiber System

In rebuilding and extension of railway, many inter-station block cables are replaced with fibers, but the previous 64 semiautomatic blocks cannot be connected. In this research ARM's 32-bit MCU with Cortex-M3 core is used to build a failsafe software-hardware integrated platform, replacing block cables with fiber channel to achieve transmission of block instruction and enhancing reliability by reducing communication links in the system. The system provides complete functions and powerful self-adaption in its compact size to meet the actual needs for engineering.