【摘要】 针对煤矿井下一维环境中人员及设备的定位问题,对一维定位理论及应用进行了研究,提出了一维分段定位法,设计了基于无线射频模块的定位系统。定位系统以ATmega1284P微处理器为主控芯片,以nano PAN5375射频模块为核心,采用对称双边双路测距算法(SDS-TWR)实现测距,利用一维分段定位法和卡尔曼滤波算法计算得到最后的定位信息。试验结果表明:系统能够完成实时测距和定位,定位误差可达1 m以内。更多还原

【Abstract】 Aiming at personnel and equipment locating problem in one-dimensional environment of underground coal mine, we studied one-dimensional positioning theory and application. We propose one-dimensional piecewise positioning method and designed the positioning system based on radio frequency(RF)module. The system takes ATmega1284 P microprocessor as the controller and the nano PAN5375 as the RF chip, and uses symmetrical double-sided two-way ranging method to achieve real-time ranging,and adopts one-dimensional piecewise positioning method and Kalman filtering algorithm to calculate the final location information. The results indicate that the system can perform real-time ranging and positioning and the positioning error is less than 1 m.更多还原