Research And Development Of Internet-based Interactive Control System For Remote Tension

In resent years, as the requirement of scientific knowledge popularization and high technology exhibition is increasing, building Science and Technology Museum has become a trend in China. On the base of high technology, designing and developing scientific exhibitions in new forms has caught great attention in scientific research and implement. These exhibitions not only enrich people's life, but also extend the spreading way of science.As the Internet is developing quickly, the remote real time transmission is under great attention. To meet the exhibition requirement of Internet technology in China Science and Technology Museum, a scientific exhibition is designed combining remote real time transmission, traditional tension control and human-computer interaction. It is a challenge to design such a popular science exhibits to be participant, competitive and knowledgable.On the viewpoint of the whole exhibition system, feasible solution is designed in the thesis. In order to implement the system, the related technologies are studied. Firstly, from the perspective of data real time transmission of network control system, network time-delay which is the crucial issue of system is studied. On the foundation of analyzing and choosing the data transmission protocol, corresponding test way is carried out to obtain the actual network time-delay data. Then, the network delay data is used in the analysis and simulation of the time delay prediction algorithm. The compensation controller of time-delay system is designed using the Smith estimate compensation principle. Secondly, on the basic research of the network communication mechanism, transmission protocol, network programming and other network-related technologies, data real-time gathering and transmission is carried out. Thirdly, video interactive section is a necessary and difficult part in this system; the key technologies of video, such as video capture way, the code compression methods and transmission protocol are analyzed in the thesis. A real-time video transmission system based on these technologies is implemented. Finaly, the remote tension interactive system is implemented. The detailed solution of remote tug-of-war system is provided in system structure, equipement choosing and software/hardware designing. This preliminary technical preparation provides the reference for system's implementation.