| Summary: | 碩士 === 國立東華大學 === 資訊工程學系 === 94 === The progress of science and technology has resulted in increasing numbers of digital appliances appearing in homes, including computers, IPTVs, refrigerators, air conditioners, monitors, and lamps and curtains. Linking these appliances to the Internet can create new applications. The combination of the network technologies allows intelligent home appliances to communicate with each other; for instance, an IPTV can play video and audio data that stored in a computer elsewhere. Users can control appliances remotely via the residential gateway, and do not need to stay beside the appliances. All of these intelligent home appliances in the home form the home network.
However, the installation process of home appliances has become increasingly simple. Manufacturing companies design their products with plug-and-play functionality to simplify the installation process. Consequently, users lack the knowledge to solve home network connection problems. For instance, users frequently do not know how to fix the problem of a computer not connecting to the Internet. Consequently, this study investigates the implementation of a home network diagnosis system that discovers problems and immediately shows the diagnosis message to the user.
This study discusses the implementation of a heterogeneous home network diagnosis system. The home network topology is constructed, and then inspected to locate the problem is and display a message on the text panel to help the user solve the problem. The testbed includes which are IP-based and Non IP-based heterogeneous networks, including IEEE 1394, Ethernet, LonWorks, Wireless 802.11 and HomePlug. The entire topology of the home network can be constructed the heterogeneous networks using the OSGi residential gateway.
The testbed, as well as using the Ethernet to connect several computers, also utilizes IEEE 1394 to let a notebook play the DV’s video and audio data. In the power line communication, the HomePlug and Wireless 802.11 can save the wiring inconvenience. HomePlug transmits IP packets through the power line, and LonWorks controls the basic appliances such as lamps and curtains on and off. The proposed system was tested by connecting devices randomly, demonstrating that the topology built by the system was correct. Furthermore, the system can not only detect many problems that occur in a home network, but also send diagnosis messages to help user solve these problems. We believe that this home network diagnosis system will bring numerous benefits to the future network managers.
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