基于GPS/GPRS的跌倒监测终端
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国家自然科学基金(51105359)


GPS/GPRS-Based Remote Monitoring Terminal for Fall Detection
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    摘要:

    跌倒是导致我国65岁以上老人意外致死的首要原因. 为了给老年人尤其是独居老人提供及时的跌倒报警和救助服务, 本文提出一种基于GPS/GPRS的远程跌倒监测终端. 该终端融合了三轴加速度计、三轴陀螺仪, 实时检测人体运动状态并进行相应的算法分析, 在检测到跌倒后, 将位置和报警信息通过GPRS传输至远程的监控中心. 此外, 该终端设有手动报警和取消报警按键, 避免漏报和误报. 经测试, 当合加速度与合角速度的阈值分别为5m/s2、25m/s2和2rad/s时, 该监测终端能够准确无误的区分正常人体活动与跌倒事件并报警, 并取得了较好的定位精度和通信效果.

    Abstract:

    Falls are the leading reason for accidental death among people at age over 65. In order to provide the real-time fall alarm and rescue service for the elderly, especially the one who live alone, in this paper we propose a GPS/GPRS-based remote monitoring terminal for fall detection. It uses sensors which combine three-axis accelerometer and three-axis gyroscope. The terminal is intended to monitor human motions and can recognize events of fall in real time. Falls are recognized using a dedicated algorithm. Once a fall has been detected, the terminal transmits alarm information together with location information to the remote monitoring center through GPRS. In order to avoid false or missed alarms, the terminal also supports manual mode of operation and buttons to send or cancel an alarm. The test results showed that the monitoring terminal can accurately distinguish between normal human activities, condition of fall event and generate alarm when the thresholds of resultant acceleration and resultant angular velocity are, respectively, 5m/s2, 25 m/s2 and 2 rad/s. The terminal has demonstrated good location accuracy and communication efficiency.

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李梦华,熊显名,赵国如.基于GPS/GPRS的跌倒监测终端.计算机系统应用,2014,23(12):67-71

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  • 收稿日期:2014-04-09
  • 最后修改日期:2014-05-23
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  • 在线发布日期: 2014-12-15
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