摘要：The problems that arise while developing a real-time distributed information-processing software system are studied. And based on the TCP/IP protocols and socket, for its facility in client/server （C/S） model networking programming, a prototype is designed for data transmission between the server and clients and it is applied on an on-line products automatic detection system. The probability analysis on network congestion was also made. A proper mechanism based on the ARCC （adapted RTT congestion control） algorithm is employed for detecting and resolving congestion, the purpose of which is mainly to achieve congestion avoidance under the particular conditions in this network-based system and reach the desired performance. Furthermore, a method is proposed for a client to diagnose automatically the connection status between the server and the client and to re-connect to the server when the disconnection is detected.

摘要：In order to meet requirements of the tourists in the process of visit and realize the purpose of the social propaganda for scenic spot, interactive narrative technique and SNS platform are combined to form a kind of new interactive narrative technique in this paper. In this paper, with Unity3d engine as the core, tourism system is expanded the development, combined with the tourism information overlay function of Ctrip Travel, the attractions sharing function of Baidu Map, and the community function of Footprint. The purpose involves design, development and optimizing debug of techniques, such as network communication, UI interaction, cross-platform calls, database access and etc. The main goal of this paper is to provide internal visit narrative community service in limited and fixed scenic area and turning the corresponding service object by mass of visitors to the visitors of scenic spot, and to make the function of App specific, simple and explicit.