| Summary: | 碩士 === 元智大學 === 電機工程學系 === 94 === Wireless technologies represent reliable, cost-effective, programmable, easy deployment, and ad-hoc function and the appearance of IEEE802.15.4/ZigBee indicated the standardization of wireless sensor networks. The technology of wireless sensor network will be applied to replace traditional network technologies or implement new network applications such as a smart home network.
A huge amount of memory space is required to store multi-media information, and the technologies of data compression are thus important to those applications of media information. The standard of JPEG2000 and the technologies behind will be discussed and the solution to achieve high compression rate with good quality will be presented in this dissertation.
The applications of digital image data over the wireless network can cause heavy transmission loads to the network due to high communication rates and this kind of data transmission can be a big network management problem. The compressed data can reduce the requirement of memory space and also improve the transmission speed and security.
The development of home automation and digital home secure control is based on the smart home environment sensor network which is the integration of wireless networks with several kinds of multi-media services, image capture, sensors and controllers. The implementation process of a wireless network based on the ZigBee technology will be explained in this dissertation, and a wireless image transmission system over the ZigBee network will be shown afterwards.
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