【摘要】 针对消防室内定位技术的需求,搭建了基于惯性测量元件的室内三维定位系统。首先,利用微机电系统(MEMS)惯性传感器获取行人运动过程中的必要参数。然后基于行人航迹推算(PDR)算法,实时计算出行人行走的步数和步长;通过气压传感器实时采集行人所处位置的高度。最后,利用无线数传模块结合服务器端处理,实现行人的室内三维定位。测试表明:系统在正常行走的情况下,可以满足行人的室内三维定位要求。更多还原

【Abstract】 Aiming at the requirements of fire indoor positioning technology,an indoor three-dimensional positioning system based on inertial measurement components is built. Firstly,micro-electro-mechanical system( MEMS) inertial sensors is used to obtain necessary parameters during pedestrian motion. Then,based on algorithm of pedestrian dead reckoning( PDR),the number of steps and steps of the pedestrian walking are calculated in real time; the height of the position where the pedestrian is located is collected in real time by the air pressure sensor. Finally,by combination of wireless data transmission module and server processing,realize indoor three-dimensional positioning of pedestrians. Tests show that the system can meet the indoor three-dimensional positioning requirements of pedestrians under normal walking conditions.更多还原