无线功率优化的穿戴式人体健康监护系统设计

Wearable System Design for Monitoring Physiological Health with Wireless Transmitting Power Optimization

摘要:

传统的可穿戴式健康监护终端多采用恒定的无线发射电平,普遍存在较为严重的功耗问题;研制了以MSP430F149微控制器和低功耗蓝牙通信为核心的人体监护终端,能在不同环境下无创、实时监测和记录人体心电、血氧、血压等特征数据；采用改进的无线功率调控方案优化无线通信和数据传输,以最优服务质量QoS、信号强度RSSI和最小误包率PER为指标,优化监护终端的功率消耗;测试结果表明,监护终端功耗差别不超过1.58 mW时,改进的无线功率调控方案具有更强的信号强度RSSI和更小的误包率PER。

Abstract:

Traditional wearable health monitoring terminals have more serious power consumption problems in common, with a constant wireless emission level. The human monitoring terminal has been developed by MSP430F149 microcontroller and low-power Bluetooth communication, and non-invasive, real-time monitored, recorded human ECG, blood oxygen, blood pressure and other characteristic data in different environments. Wireless communication and data transmission has selected improved wireless power control program, and wireless transmitting power has been optimized with quality of service QoS, signal strength RSSI and the minimum packet error rate PER.Test results show that the improved wireless power control scheme has stronger signal strength RSSI and minimum packet error rate PER when monitoring terminals have consumed power less than 1.58 mW.