CAJ | 학술논문

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。
실험분석료삼고절점도치재천화판시실내삼유공간무선전감기망락정위계통RSSI적성질。실험결과표명：상비우삼고절점고정재수평면，장삼고절점고정재천화판，RSSI유경호적집중성；근거실내삼유공간적대소조정전감절점적발사공솔，가이진일보제고RSSI적집중성；인원재발사절점부근회대RSSI산생영향，통과표준차대소가이판단절점부근시부유인혹장애물；재실내삼유공간정위계통중채용기우RSSI적측거기술시가행적。
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 horizon-tal plane, placing the reference node upside down on the ceiling has better concentration of the RSSI. It is possible to fur-ther 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.