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This article introduces the implementation of serial communication link reuse, between the Internet of the Things devices and wireless communication module, and presents a new implementation. Through the pseudo-terminal functions of Linux system, the new method implies a serial communication link multiplexing layer between the Internet of the Things devices and wireless communication module. Compared...
This paper brings up a mobile learning system, which can be used to collaborative learning, learning evaluation, information distribution, resource sharing and so on. This system is developed by using Java ME technology, the Web application server is powered by Tomcat 6.0, and the background database uses SQL Server database. To support the WAP 2.0 protocols, all documents of this system follow the...
The increasing popularity of GPS device has boosted many applications where more and more GPS logs have been accumulating continuously. Managing and understanding the collected GPS data are two important issues for these applications. On one hand, by indexing the increasing GPS data, we can provide effective retrieval method for users to find the corresponding GPS data interests them. On the other...
The increasing popularity of GPS device has boosted many Web applications where people can upload, browse and exchange their GPS tracks. In these applications, spatial or temporal search function could provide an effective way for users to retrieve specific GPS tracks they are interested in. However, existing spatial-temporal index for trajectory data has not exploited the characteristic of user behavior...
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