基于加速度量测幅值零速检测的计步算法研究

发布时间：2018-05-15 11:00

  本文选题：计步 + 零速检测　； 参考：《武汉大学学报(信息科学版)》2017年06期

【摘要】：准确的步数统计是进行人员航位推算的关键,通过分析行人运动模型及步行姿态,设计了一种基于零速检测的加速度量测幅值计步算法,实现了载体坐标系和行人地理坐标系的转换,剔除了伪零速现象,在室内模拟环境下采用低成本的微机电机械系统(micro electro mechanical system,MEMS)惯性测量元件对人员行走进行检测,实现了行人运动姿态的有效识别和步数的精确统计。实验结果表明,该计步方法准确性高,对不同的运动环境(走廊、拐角和楼梯)具有良好的适应性,计步正确率均达到98%以上,并且所用的测量元件功耗低,便于携带,适合室内复杂环境。
[Abstract]:Accurate step statistics is the key to the calculation of human cadence. Based on the analysis of pedestrian motion model and walking attitude, an accelerometer step algorithm based on zero velocity detection is designed. The transformation of carrier coordinate system and pedestrian geographical coordinate system is realized, and the pseudo zero velocity phenomenon is eliminated, and the low cost micro electro mechanical system MEMS inertial measuring element is used to detect the walking of personnel in the indoor simulation environment. The effective recognition of pedestrian motion posture and the accurate statistics of the number of steps are realized. The experimental results show that the method has high accuracy, good adaptability to different moving environments (corridor, corner and staircase), and the accuracy rate of step calculation is over 98%, and the power consumption of the measuring elements used is low, which is easy to carry. Suitable for complex indoor environment.
【作者单位】： 中国矿业大学环境与测绘学院;
【基金】：国家自然科学基金资助(41371423) 国家重点研发计划(2016YFB0502105) 江苏省自然科学基金(BK20161181)~~
【分类号】：TH-39
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本文编号：1892180