| 室内三维空间定位系统的RSSI特性分析 |
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| 引用本文： | 曾 超,刘宏立,徐 琨,韩文君,张红泰.室内三维空间定位系统的RSSI特性分析[J].计算机工程与应用,2014(11):70-74. |
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| 作者姓名： | 曾 超 刘宏立 徐 琨 韩文君 张红泰 |
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| 作者单位： | 湖南大学电气与信息工程学院,长沙410082 |
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| 基金项目： | 国家自然科学基金（No.61172089）;湖南省科技厅资助项目（No.7012FJ4119）. |
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| 摘 要： | 实验分析了参考节点倒置在天花板时室内三维空间无线传感器网络定位系统RSSI的性质。实验结果表明:相比于参考节点固定在水平面,将参考节点固定在天花板,RSSI有更好的集中性;根据室内三维空间的大小调整传感节点的发射功率,可以进一步提高RSSI的集中性;人员在发射节点附近会对RSSI产生影响,通过标准差大小可以判断节点附近是否有人或障碍物;在室内三维空间定位系统中采用基于RSSI的测距技术是可行的。
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| 关 键 词： | 接收的信号强度指标(RSSI) 天花板 发射功率 室内定位 三维空间 无线传感器网络 |
Properties of RSSI for indoor 3D space positioning system |
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| ZENG Chao,LIU Hongli,XU Kun,HAN Wenjun,ZHANG Hongtai.Properties of RSSI for indoor 3D space positioning system[J].Computer Engineering and Applications,2014(11):70-74. |
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| Authors: | ZENG Chao LIU Hongli XU Kun HAN Wenjun ZHANG Hongtai |
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| Affiliation: | ( College of Electrical and Information Engineering, Hunan University, Changsha 410082, China) |
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| Abstract: | This experiment analyzes the properties of RSSI for indoor 3D space WSN positioning system with the refer-ence node upside down on the ceiling. Experimental results show that, compared to the reference node fixed in a horizontal plane, placing the reference node upside down on the ceiling has better concentration of the RSSI. It is possible to further improve the concentration of the RSSI by adjusting the transmission power of the sensing node according to the size of the three-dimensional indoor space. It can be judged by the standard deviation whether someone or obstacle is around the node. RSSI-based ranging technology is feasible in the indoor three-dimensional space positioning system. |
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| Keywords: | Received Signal Strength Indication （RSSI） ceiling transmission power indoor positioning system three-dimensional space wireless sensor network |
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