基於改良式ZigBee路由協定的路燈照明監控系統

Abstract

路燈照明系統在一個現代化國家是不可或缺的。以往路燈照明系統的監控是交由人力來進行，但隨著無線網路的發展，建置一個以無線網路監控的路燈照明系統會是一項較好且可行的方案。無線網路監控可以做到以前人力無法做到的即時反應，減少人力花費並提升系統效能。ZigBee屬於短距離低速率傳輸的多跳式無線通訊協定，在現有的無線網路協定中最適合用來建構路燈照明監控系統，但ZigBee現有的路由方式效能卻不盡理想。本論文參考CGSR和EHRP的作法，提出改良式ZigBee路由(EZR)取代慣用的AODV ZigBee路由，NS2模擬結果無論封包平均傳輸延遲、傳輸成功率或廣播耗費率等系統效能都獲得明顯的改進。

Street Light System is essential for a modern country. Street light surveillance was manipulated by manpower in the past, but with the development of wireless networks, establishing a Street Light System with a wireless surveillance network becomes a better and feasible scheme. Surveillance by wireless network is able to make instant reactions never achieved by manpower only, reduce manpower cost, and promote system performance. Zigbee is a short-distance, low-rate, and muti-hop wireless communication protocol. Among existing wireless network protocols, it is the most suitable to build up a Street Light Surveillance System. However, today the performance of Zigbee’s routinge policy is not good enough. This thesis proposes Enhanced ZigBee Routing (EZR) based on CGSR’s and EHRP’s methodologies to replace the common AODV Zigbee routinge. The results of NS2 simulation shows that the system performance indices, such as packet end-to-end delay, packet delivery ratio, and broadcast overhead ratio, are totally apparently improved.