| 基于ZigBee室内定位算法 |
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| 引用本文： | 李尧,汪明,于晓谕.基于ZigBee室内定位算法[J].计算机系统应用,2016,25(6):180-184. |
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| 作者姓名： | 李尧 汪明 于晓谕 |
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| 作者单位： | 山东建筑大学 信息与电气工程学院, 济南 250101,山东建筑大学 信息与电气工程学院, 济南 250101,山东建筑大学 信息与电气工程学院, 济南 250101 |
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| 基金项目： | 2014年黑龙江省大学生创新创业训练计划项目(201311230111) |
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| 摘 要： | 鉴于ZigBee技术适用于数据采集系统的特点,提出了一种基于ZigBee的室内无线定位系统解决方法.传统的基于ZigBee定位采用无线信号损耗模型,受周围环境的影响比较大,现实模型根据经验值设置参数,定位精度不高;在此基础上采用曲线拟合方法拟合RSSI与距离之间的关系,采用RSSI三角形质心算法计算待测节点坐标.实验结果表明该算法提高了定位精度.
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| 关 键 词： | ZigBee 数据采集 曲线拟合 极大似然估计法 RSSI三角形质心算法 |
| 收稿时间： | 2015/10/21 0:00:00 |
| 修稿时间： | 2015/12/2 0:00:00 |
Indoor Location Algorithm Based on ZigBee |
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| LI Yao,WANG Ming and YU Xiao-Yu.Indoor Location Algorithm Based on ZigBee[J].Computer Systems& Applications,2016,25(6):180-184. |
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| Authors: | LI Yao WANG Ming and YU Xiao-Yu |
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| Affiliation: | School of Information and Electrical Engineering, Shandong Jianzhu University, Shandong, Jinan 250101, China,School of Information and Electrical Engineering, Shandong Jianzhu University, Shandong, Jinan 250101, China and School of Information and Electrical Engineering, Shandong Jianzhu University, Shandong, Jinan 250101, China |
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| Abstract: | The features of ZigBee make it suitable for the application of data acquisition system. A method which is designed for the ZigBee-based data acquisition system is proposed. Most traditional positioning based on ZigBee uses wireless signal loss model to locate. The work is affected by the impact of the surrounding environment. If we take experience value in reality and sets it as parameters in the model, both the positioning accuracy and the universal of this method are not in ideal. With Curve Fitting method fitting the relationship between RSSI and distance, then RSSI triangle centroid algorithm is used to calculate the coordinates of the nodes to be measured. Actual experimental result shows that the algorithm can improve the positioning accuracy. |
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| Keywords: | ZigBee data collection curve fitting maximum likelihood estimation method triangle and centroid location algorithm based on RSSI |
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