摘要
目前,人们对室内定位与导航的需求越来越大,如在展厅、图书馆、仓库、超市等室内环境中,用户希望持有可移动设备能够自由定位并导航,因此,该文主要目的是介绍基于超声波技术和射频技术的Cricket室内定位系统的工作原理、优缺点并提出改进方法;通过引入节能机制的方法,改进Cricket室内定位系统的信道分配策略,得出定位系统能耗和成本的结果,最终能在一定程度上降低Cricket室内定位系统的能耗和成本,保证节点之间的公平性。
At present, people＇s demand for the indoor positioning and navigation is getting greater and greater. For example, in some indoor places like exhibition hall, library, torehouse,upennarket, ustomers expect to make use of the equipment for free indoor positioning and navigation. Thus, the purpose of this paper is to introduce the working principle, advantage and disadvantage of Cricket location sys- tem based on ultrasonic technology and RFID technology. The way of the improvement of this system has also been brought up. By the way of introducing energy-saving system, allotment of signal channel of Cricket location system will be improved and get the result of the energy consumption and the cost of Cricket positioning system, which will finally reduce the energy consumption and the cost of Cricket indoor positioning system and make sure of the equality among the node.
出处
《计算机技术与发展》
2011年第5期206-209,共4页
Computer Technology and Development
基金
安徽省教育科研重点项目(kj20100A023)
