Research And Design Of Distributed Scheduling System

This dissertation introduces the research and design of Distributed Scheduling System based on CAN Bus. It is a system centralized in micro-computing unit, adopting CAN Bus to make main LAN and realizing the railway scheduling by monitoring the 6502 Electronic Integrated System.CAN Bus is a new developed communication technology, with the virtue of good real-time, high-reliability and performance-price ratio, and is especially fit for automatic control system. This system utilizes the CAN Bus technology in the control system, not only making the scheduling unit manage to schedule more conveniently and more effectively to meet the new demand with a view to the advance and extensibility of the system technology, but also not affecting the use of original devices, sound ability and performance-price ratio of system.First, this dissertation introduces the development of CAN Bus, and make certain of the general system design. In the hardware design, this dissertation introduces the system by dividing it to two parts, one is the data-collecting node with CAN interface, the other is the bus communication node. The main job of data-collecting node is to handle the collection, transformation and handle of versatile numeric signals and stimulated signals. The main job of CAN Bus is to complete storage/forward, and protocol transform functions. In the software design, this dissertation introduces the data-collecting node developing as embedded system and software design based on C/OS-II real-time operating system. At last, this dissertation introduces the developing of the manage software and the configuration software briefly.During the application, this system runs stably, which shows rationally designed, easily expanded and according to the expectation.