CAJ | 학술논문

　　为了防止塔机运行过程中起吊货物与障碍物发生碰撞，介绍了ZigBee无线定位的原理，分析了无线电传播损耗模型．根据塔机的结构特点优化布置定位参考节点，简化了定位算法；采用高斯理论模型过滤RSSI值，利用对数-正态分布理论模型计算距离；最后应用提出的三维定位算法求得盲节点坐标．在实际环境中进行了实验，实验结果表明，该算法可实现定位精度在2.5 m以内的定位，为塔机定位防撞系统设计、塔机的实时监控提供了参考依据．
　　위료방지탑궤운행과정중기조화물여장애물발생팽당，개소료ZigBee무선정위적원리，분석료무선전전파손모모형．근거탑궤적결구특점우화포치정위삼고절점，간화료정위산법；채용고사이론모형과려RSSI치，이용대수-정태분포이론모형계산거리；최후응용제출적삼유정위산법구득맹절점좌표．재실제배경중진행료실험，실험결과표명，해산법가실현정위정도재2.5 m이내적정위，위탑궤정위방당계통설계、탑궤적실시감공제공료삼고의거．
In order to prevent the collision between lifting goods and barrier in the process of run-ning ,the principle of ZigBee wireless location was introduced ,and the loss model of radio was analyzed .The positioning reference node was optimized layout according to structure characteris-tics of tower crane ,and the localization algorithm was simplified .RSSI values were filtered by u-sing Gaussian theory ,and the distance was calculated by the logarithmic-normal distribution the-ory model .Finally ,the blind node coordinates were obtained according to the three-dimensional positioning method .The experiment was made in real environment ,the results shows that this method can realize the positioning accuracy in 2 .5 m .It provides the reference for design of loca-tion collision avoidance system and real-time monitoring system of tower crane .