Research And Implementation Of Distributed Common Time Simulator System

With the rapid development of information technology and networks, more and more applications made more stringent requirementsfor time synchronization, A certain synchronization of distributed network systems is needed in many areas. But,how to synchronize all hosts time in a distributed system to resolve inconsistencies between the system clock in the host, which is a very important issue in computer engineering.The main content of this paper is how to asynchronous in distributed environment,the use of mechanisms based on serial transmission and network to send and receive messages through successive timestamps delayed sending the valid time information into packets, constantly correcting time deviation, and and ultimately achieve clock synchronization between the various distributed nodes.To meet the need for a unified collaborative platform between the time of each distributed node, ensure questions and answers between the various units or collaboration platform, order, has a consistent unified data to improve the accuracy of signal transmission and commands, a paper distributed message delivery between the type cooperative network based on the clock signal coding system at the time of writing the message, the precise time transfer and sharing a time system simulator software system.Firstly, the current time synchronization in some areas of urgency and technical feasibility, clock synchronization situation and development trend of domestic and international. Secondly, it introduces the theory of time synchronization works, timing mode, synchronization model. Again, we introduced techniques and methods of the present time system simulator design used. Based on the development of demand when the system simulator software, this time system simulator design uses a physical serial port communication technology and UDP multicast communication technology, also introduced Socket multicast programming model and Clock Synchronous Compensation Algorithm model system when processing packets through convergence algorithm simulation software, with the least-squares curve fitting running clock, the clock accuracy finally get real difference. Again, details the time system simulator software design. From two aspects, one is as a client when the system simulator designed as a server when the system simulator design, while about two link modules: Serial Com communication link and Socket multicast communication link.Finally, the realization time system simulator software time system simulator toachieve the desired functional effect can be very good to achieve clock synchronization functions in distributed collaborative work.