摘要
射频识别(RFID)技术和无线传感网(WSN)技术在当今移动定位、目标识别与跟踪方面具有广泛的应用。针对这两种技术在定位领域的应用局限,如感应距离、识别效率、组网能力等方面限制,提出一种网络节点定位方法,将具有标识能力的射频识别(RFID)技术与具有通信、传感能力的无线传感网(WSN)技术相结合。首先,利用射频标签的感应范围获取准确的参考区域;然后,采用基于指纹的非测距定位方法在选定参考区域估算移动节点实时位置。仿真结果表示,在分布式网络定位应用中,所提出的算法有效提升了移动节点的定位精度,同时节约了网络资源,提升了定位效率。
Radio Frequency Identification(RFID)and Wireless Sensor Network(WSN)are both widely adopted in the application of target recognition/tracking and mobile positioning.In view of the technical limitation in the field of positioning application,such as the restrain of sense range,recognition efficiency,networking capability,and so on,this paper proposes a distributed localization algorithm,combining the advantages of RFID and WSN technologies with better object identification,communication and sensing capabilities.This method firstly employs RF reader and tags to obtain an accurate reference zone,and then uses range-free fingerprinting based localization method to make estimates in selected zone.Simulation results reveals that the proposed method improves effectively the localization accuracy of mobile nodes,as well as saves network resources.
作者
吕小微
Lv Xiaowei(Information Science Academy of China Electronics Technology Group Corporation,Beijing 100086,China)
出处
《电子技术应用》
2018年第10期106-108,113,共4页
Application of Electronic Technique
