Real-time Data Synchronization Acquisition System Based On Ethernet

In the distributed control system, in order to achieve fast failure investigation, monitor the production process and real-time record the process data, the need to establish a fast data acquisition, monitoring, recording and analysis system. This paper is directed against the system of data collection and real-time synchronous transmission problems designed by simultaneous real-time data transmission error analysis and propose effective solutions.This paper introduced the structure of modern computer network architecture firstly, especially the current world-wide TCP/IP protocol structure of some of the key agreement protocol layers through comparative analysis of the main functions and features of the design of distributed data acquisition network system. Focus on resolving the problem of Ethernet traffic data collection and real-time transmission of the synchronization.In this paper, VC++ as a development platform, simultaneous command was broadcasted by using the UDP network protocol, improve command protocol processing to improve the system's synchronization, PC host send a broadcast marked with a host of time the collection order, to correct the under-machine system timeThe host PC broadcast a host of time marked on time in order to correct the under-machine system time and to achieve the purpose of reducing the accumulation of synchronization error. By reducing the network transmission delay, monitoring network load, analyze the contents of captured packets, filtering redundant information flow, and other ways to achieve real-time transmission of data. Finally, experimental test of the synchronization error and real-time.