智能步:一个完全集成的,低功耗的内监视器
Nagaraj Hegde1, Edward Sazonov1
1Department of Electrical and Computer Engineering, the University of Alabama, 342 HM Comer, Tuscaloosa, AL 35487, USA.
概括
这项研究介绍了SmartStep,这是一款用于活动监控的基于内的可穿戴传感器. 它提供了可靠的数据收集超过两天,克服了鞋子修改的需要.
科学领域:
- 生物医学工程 生物医学工程
- 可穿戴技术可穿戴技术
- 传感器系统 传感器系统
背景情况:
- 安装在鞋上的可穿戴传感器对于活动监测,步态分析和康复非常有价值.
- 现有的传感器通常需要修改鞋子,这限制了广泛采用.
- 需要一些不引人注目的多功能可穿戴传感器,与各种鞋类兼容.
研究的目的:
- 开发和评估基于内的可穿戴传感器系统SmartStep.
- 通过消除需要改变鞋子来解决装在鞋子上的传感器的局限性.
- 为了证明低功耗,可靠的内传感器的可行性,用于连续监控.
主要方法:
- 将3D加速度计,3D陀螺仪和压力传感器集成到通用内中.
- 使用CC2540系统芯片与8051处理器,蓝牙低能耗 (BLE) 和闪存.
- 开发低功耗策略和强大的数据缓冲方法,用于间歇性连接.
- 与Android智能手机应用程序进行无线接口,用于数据记录和可视化.
主要成果:
- 智能Step的功耗可以在充电之间连续磨损两天以上.
- 机械可靠性测试证实了压力传感器在人类长时间使用下的耐用性.
- 该系统在现实世界中实现了超过98.5%的数据采集准确度,在间歇性连接的情况下.
结论:
- 智能Step为各种鞋类的可穿戴感应提供了一种实用,非侵入性的解决方案.
- 该系统为各种应用提供可靠的低功耗平台,包括活动监测和康复.
- 智能步的设计有效地管理数据缓冲和低功耗要求,用于延长使用.
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