Indoor Location Algorithm on RFID and Its Improvement

摘要：

LANDMARC nearest neighbor algorithm of RFID improves the precision positioning and needs to increase the number of the readers and the reference tags, thereby increasing the system cost. Based on the analysis of the nearest neighbor algorithm, an improved algorithm is proposed. The algorithm puts the three readers on the three vertices of the triangle,and three sides of the triangle is as the base to expand. Reference tags and virtual tags are put in the expansion of triangle area.Through Newton interpolation polynomial,the calculation for signal strength of the virtual tags estimates the target coordinates,Experimental results show that the improved algorithm is less than the original algorithm with a single reader, seven reference tags, the positioning accuracy for 12％ increasing.

关键词： Equilateral triangle Newton interpolation polynomial Reference tags Virtual tag Signal strength

作者: LIU Yong YANG Gong-jian

作者单位: Electronic Information Engineering College Henan University of Science & Technology Luoyang China

会议类型: 国际会议

会议名称: 2011 3rd IEEE International Conference on Computer Research and Development(ICCRD 2011)(2011第三届计算机研究与发展国际会议)

会议地点: 上海

会议语种:英文

页码: 56-59

在线出版日期: 2011-03-11（万方平台首次上网日期，不代表论文的发表时间）