无源无线传感器平台在人体跑步检测中的应用

摘要

Considering people paying more attention on the energy expenditure of physical activities ,the passive and wireless identification and sensing platform‐‐WISP ,which transmitted data in real time ,was used to realize the detection of energy ex‐penditure and running distance when people running .The energy was obtained and the data communication was realized by using the UHF RFID reader that replaced the power unit and broke the bottleneck of power limitation .According to the data collected using the triaxial accelerometer‐‐ADXL330 ,the physical activity energy expenditure and running distance during a run were cal‐culated .Comparing the results of using WISP and that of using the treadmill ,the feasibility and accuracy of WISP was verified .%鉴于人们对运动能耗的日益关注，提出采用无源的、具有实时传输数据功能的无线识别传感平台（WISP）实现对人体跑步过程中的能量消耗及跑步距离的检测。通过超高频射频识别读写器来获取能量并实现数据的通信，取代了电源单元，突破了能量限制的瓶颈。根据三轴加速度传感器ADXL330采集到的数据，计算出跑步过程中的能量消耗及跑步距离。通过将WISP与跑步机检测到的结果进行对比，验证了WISP的可行性及准确性。