基于单一加速度传感器的士兵状态微型监测器研制

Development of Micro-monitor for Soldier Status Based on Single Acceleration Transducer

目的为实现低生理、心理负荷下的士兵状态实时监测,设计一种用于战场环境的微型士兵状态监测器。方法选用MMA7260传感器采集士兵运动加速度信号和静止时的心跳加速度信号,经模拟电路处理后由Zigbee无线通信实时传输数据到单兵数字终端,并在终端系统实现士兵状态分析和心率检测。结果有效采集和处理加速度信号,实现了静止、步行、跑动(站立、平躺、侧卧)等姿态的识别;计算出静止时士兵的心率。结论采用加速度传感器MMA7260和Zigbee芯片CC2430设计出一个体积小、重量轻、功耗低的微型士兵状态监测器,能实时监测士兵运动状态和安全状况。

Objective To design a wearable micro-monitor which can be used in the battlefield,in order to monitor the soldier＇s physical activity in real time.Methods Using MMA7260 transducer to get the activity and heartbeat acceleration signals at rest.Then,the extracted signals were processed in analogue circuit,and transmitted in real time to the soldier＇s digital terminal with Zigbee wireless communication.Soldier＇s physical activity and heart rate were recognized.Results The micro-monitor extracted and analyzed the acceleration signals effectively,and recognized standing,walking,running and so on.Conclusion A micro-monitor with the advantage of miniature,light and low power consumption is designed using MMA7260 transducer and Zigbee wireless communication with CC2430 chip,which can monitor the soldier＇s real-time activity status and heart rate（at rest） for a long time.