Design And Application Of The Billing System In Refrigerator Of Hotel Based On Wireless Sensor Network

With the limitations of cabling and upgrading in traditional sensor network, people have begun widespread use of wireless sensor network technology. This paper describes the rise of wireless sensor network technology and its application in the military, environmental, agricultural, medical, and in other fields, and then analysis the layered structure and elaborate its key technologies of the wireless sensor network, and choose ZigBee technology for further introduction.The Networks Layer of wireless sensor networks is researched and discussed deeply, we first study AODV algorithm of the planar routing protocol, and then study Cluster-Tree algorithm of the hierarchy routing protocol. The second part of this article, AODVjr algorithm and Cluster-Tree algorithm are introduced from the principle and study several improving methods nowadays. Introducing wireless sensor network simulation software OMNET++, and simulate the two typical algorithms in random network for further.ZigBee technology is a new wireless sensor network technology with short-range, low speed, low power, low-cost, in the third part of this article describes the application of the refrigerator-billing system in hotel with the wireless sensor network, the paper selected ZigBee2007/PRO protocol stack after comparison, then design and plan the whole program based on the actual situation, respectively, the hardware and software are detailed described for the refrigerator-billing system in hotel. Paper is divided into five chapters:Chapter1:It introduced mainly the development of wireless sensor networks and the background of the refrigerator-billing system in hotel.Chapter2:It introduced mainly the communication architecture of the wireless sensor networks and ZigBee technology.Chapter3:It introduced mainly the algorithms study and simulation in the network layer of wireless sensor networks.Chapter4:It introduced mainly the refrigerator-billing system in hotel from the hardware aspects.Chapter5:It introduced mainly the refrigerator-billing system in hotel from the software aspects.