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Received:July 14, 2009
Received:July 14, 2009
中文摘要: 利用无线传感器网络建立低成本、高精度的实时定位系统,是当今的研究热点之一。通过多组实验数据对比,提出了“当前的无线芯片不适用于基于RSS技术的指纹定位技术”的观点,并在此基础上引入TOA(Time of Arrive)技术,设计并实现了基于TOA的指纹定位系统。该系统利用了当前的基于RSS的指纹定位系统,将TOA获得的测量距离值作为参考信号,利用无线信号的连续性改进了定位精度。实验数据表明,该系统在复杂的环境下达到了一定的精度,有一定的实用意义。
Abstract:How to set up a low-cost, high-accuracy real-time location system based on wireless sensor network is one of the popular research topics. This paper, according to our analysis on various sets of experimental data, suggests that current wireless chips are not suitable for location fingerprinting based on RSS. In addition, a new location fingerprint system based on TOA is proposed. It regards distances from TOA as reference signals and makes use of wireless signal’s continuity to improve the location accuracy. The experimental data show that this system achieves considerable accuracy in complicated environments.
keywords: WSN RSS TOA location fingerprint
文章编号: 中图分类号: 文献标志码:
基金项目:
Author Name | Affiliation |
TAN Fei | 复旦大学 计算机科学与技术学院 上海 200433 |
LU Xiang | |
TU Shi-Liang |
Author Name | Affiliation |
TAN Fei | 复旦大学 计算机科学与技术学院 上海 200433 |
LU Xiang | |
TU Shi-Liang |
引用文本:
谈飞,卢翔,涂时亮.基于TOA的指纹定位系统.计算机系统应用,2010,19(3):137-141
TAN Fei,LU Xiang,TU Shi-Liang.Location Fingerprint System Based on TOA.COMPUTER SYSTEMS APPLICATIONS,2010,19(3):137-141
谈飞,卢翔,涂时亮.基于TOA的指纹定位系统.计算机系统应用,2010,19(3):137-141
TAN Fei,LU Xiang,TU Shi-Liang.Location Fingerprint System Based on TOA.COMPUTER SYSTEMS APPLICATIONS,2010,19(3):137-141