The Design Of Time Synchronization Redundance System

For a large modern country that is entering into information society,whether time is exact is relative to people's life,industry production and society's development.Modern communication net and electric power net are more and more depending on exact time and frequency.The existing Time Synchronization Devices are mostly single system or single time source,so they have not high reliability.With the present situation of Time Synchronization Device,the paper discusses detailed on studying Time Synchronization Redundance Device that has high veracity and high reliability.It increases the reliability of device and it is important for the development of country economy that the system takes redundance scheme.At first,the paper introduces detailed the design idea and frame as a whole,including the design idea of every function module,and the layout of front panel and back panel,and the function of switch control cell that inside the system,decode system,system switch control device,and extend output control device and contaction among them.Then according to the whole design frame,the paper discusses the hardware design and software design of the whole control system.The part of hardware designs the circuit principle figure of every system,including the selection of component and the instruction of hardware principle figure. According to the hardware principle figure, the part of software collects input signals and output signals,instructs the selection of program language and software design idea,protracts flow chart and compiles programs.Then the paper mentions the anti-jamming of hardware and software in the system.At last,the paper concludes the problem and makes a expectation of it.