Research And Implementation Of Distributed Interactive Simulation Data Communication

The Distributed Interactive Simulation is one of the important research fields of simulation technology at present. Its far-reaching application value for engineer, especially in military fields, has been given widespread attention to all the countries in the world. The key aspect that network transmission solutions, has not formed and formulate a set of complete developments DIS standard and the step until now in our country. The computer data communication and the network technology are becoming one of Distributed Interactive Simulation essential technologies, the communication of the real-time data has been becoming the networking bottleneck all the time, and it also causes one of the main disparity of similar technology of DIS technology between foreign countries and our country.The thesis has mainly done following several fundamental researches and the technical applications of the network correspondence according to the project request:(1)According to the system communication needs of the stability and the reliability, the thesis has thoroughly studied the application layer real-time transmission protocol RTP and transmission level protocol TCP and UDP, the relation communication mechanism has analyzed the RTP protocol deficiency, and choosing appropriate network communication protocol TCP. .(2)The principle of the SOCK-STREAM as a communication mechanism is intensively studied according to the needs of subject reality.(3)According to the real-time character demand for communication, from production of the data to transmission of the data, memory of data course adopt DR algorithm, formation branch limit circle algorithm and multi-thread multi-task mechanism, etc., and realize mechanism separately, optimize and compare and analyze most communication, choose the solution of the suitable function demand.(4)The function of the real time data transmission between the server and the client has been realized in the VC ++6. 0 platform using OOA and OOD technology on the PC based on Windows OS platform.The results of the operation on the PC in different mainly frequently and different Windows platforms indicate that: if the network transmission and runs steadily, the result iscorrect and the real-time requirement of DIS can be acquired. This research in real-time data communication also has certain reference value to other network application based on Internet, such as network multimedia data communication and long-distance teaching, etc.