具有集中計算能力的感測網路管理架構之研究與實作

Studying And Implementing A Sensor Network Of Management Structure With Centralizing Computation

張國基(Kuo-Chi Chang)

指導教授 ： 黃文增

國立臺北科技大學/機電學院/電腦與通訊研究所/碩士(2005年)

摘要

現行感測網路利用佈滿於環境中的感測節點，進行細微資料的收集。目前資料的收集大多利用單一伺服器進行；讓所取得的資料封閉於單一伺服器中；因此，有兩項限制：第一，.相關的應用裝置無法直接對感測節點做運算或操作，使得其他裝置在資料取得的過程上受到限制；第二，感測節點的運作需透過資料收集伺服器，無法進行即時的事件通知。若感測節點能將所提供的資料，獨立供應於網路中，則感測節點所收集的資料就能通透於網路中，並使感測節點所收集的資料能進行更多樣化的處理，提高感測節點的功能。但感測節點屬於低計算能力的裝置，要獨立提供資料，有其實質困難度，本論文主要提出一個架構，設計一種能獨立提供資料的感測節點，並在不違反感測節點低計算能力的特性，讓感測節點透過中介器代理機制提供網路上其他裝置直接存取該感測節點的能力，並使得感測節點具備即時事件通知能力。
UPnP網路具備有即時事件通知能力、自動組態和支援自訂動作的特性，所以相當適合感測網路。在感測節點低計算能力的特性限制下，本文利用中介器負責感測節點的聯繫與資料取得，並於另一端使用UPnP網路，將能使感測節點在不做任何改變的情況下，與UPnP網路結合，順利將感測節點的資料提供給UPnP網路上的裝置進行其他應用處理。為驗證系統的可行性，本文建立一具備JPEG/JPEG2000壓縮能力的UPnP網路，使得透過中介器連接UPnP網路的影像感測節點，能利用該環境的JPEG/JPEG2000壓縮能力，將原本影像擷取功能，提升為具備JPEG/JPEG2000壓縮能力的影像感測節點。

關鍵字

感測網路 ； UPnP ； JPEG ； JPEG2000

並列摘要

The currently sensor network, which collects data of surroundings and log in a single server, utilizes the sensor nodes that spread around the environment. Due to its characteristics, it will cause some restrictions as follows. The first, it is difficult to access the sensor nodes from the application devices. The second, some the most operations must through the data collection server, the system cannot perform event processes with the real time. For these reason, if each sensor node can share the information via network, the multifunction will be improved immediately. The sensor node is a lower computation power device and it is too difficulty to independently offer the data to network. We propose the architecture to design the independent sensor node in this thesis. That is, our proposed architecture is operating with the lower computation power device and can provide other devices to directly access the node bye the transponder. Therefore, the behavior of our system looks similar to a real time system when notifying other devices.
UPnP can immediately provide the event notifications, zero-configuration and proprietary action. Therefore, UPnP is suitable for sensor network. In the lower computation power situation of sensor node, this design is through the transponder to collect data and link with sensor node. It also integrated the UPnP solution in the transponder to link with other UPnP devices. In our thesis, we do not need to change any sensor node; it can link with UPnP networks. We except that the sensor node can directly offer data to the UPnP devices for other processes.
To verify our proposed architecture, we implement an UPnP network that can support JPEG/JPEG2000 compressed ability. Then, our system can make the sensor node to connect UPnP network and can utilize the JPEG/JPEG2000 functions, which can compress JPEG/JPEG2000 image from the original image.

並列關鍵字

Sensor Networks ； UPnP ； JPEG ； JPEG2000

參考文獻

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