Design And Realization Of Interlocking Controller Based On μC/OS-Ⅱ

Station Interlocking System is one of the most important systems in railway signalling. Nowadays, Relay Interlocking System is widely used in our country. With the rapid development of computer technology and rising requiring for the Railway Station Signal Control System, Relay Interlocking System is subject to be replaced by Microcomputer Interlocking System. Microcomputer Interlocking System represents the development direction of the Railway Station Interlocking System.But the present Microcomputer Interlocking Systems, some put the interlocking computing program combined with others like station interface into the same computer, some put the interlocking computing program into the hypogynous computer, such as industrial controlled computer and PLC etc. These microcomputer interlocking systems may be heavy-laden, costly and unreliable.In this paper, the embedded system is applied as the interlocking computing controller which realized feasibility realization priciple of the interlocking computing function. And designed the system' s structure, software' s structure, interface of the Interlocking Computing Controller.Being selected, the S3C44B0 chip which uses ARM7TDMI as the micro-processor of the interlocking controller is used by the interlocking computing controller. It designed expanding the function by designing the network interface, the power module and the storage etc and redundancy technology in order to improve the reliability and security of system of the Interlocking Computing Controller.In aspect of software, being selected, the driver of controller has been developed by migrating the μC/OS -II RTOS and LWIP protocol stack, to be realized the data exchange between two MCU with...