摘要
系统主要对室内进行二维定位,能实时定位出目标的相对位置并对其运动轨迹进行绘制。系统以STM32F411单片机作为核心处理单元,通过3个锚点建立直角坐标系,可用TOF算法与光速的乘积算出标签与锚点之间的距离差,标签用三边定位算法可得到位置坐标值,最后标签将位置坐标值传送到计算机的上位机中。实际测试结果表明:系统最终能够定位到的位置与实际位置的偏差很小,具有较高的实时性、稳定性以及抗干扰性。
The system can locate the relative position of the target in real time and draw the trajectory of the target.The system takes STM32F411 MCU as the core processing unit.The system establishes a cartesian coordinate system through three anchor points.The distance difference between the tag and the anchor points can be calculated by the product of TOF algorithm and the speed of light.The tag can get the position coordinate value by using the trilateral positioning algorithm.The actual test results show that the deviation between the final location and the actual location is small,and it has high real-time performance,stability and anti-interference.
作者
郝晴晴
Hao Qingqing(School of Electeical Engineering and Automation,Henan Polythchnic University,Jiaozuo 454000,China)
出处
《无线互联科技》
2021年第16期120-122,共3页
Wireless Internet Technology
