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中国生物医学工程学报
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蓝牙低功耗可穿戴血氧监测设备的设计
1 华南理工大学生物医学工程系,广州 510006
2 中国人民解放军第421医院,广州 510318
3 华南理工大学校医院,广州 510640
Design of a Wearable Device for SpO2 Monitoring Using BLE
1 Department of Biomedical Engineering, South China University of Technology, Guangzhou 510006, China
2 No. 421 Hospital of PLA, Guangzhou 510318, China
3 Hospital of South China University of Technology, Guangzhou 510640, China
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摘要 设计一种基于蓝牙低功耗技术的可穿戴血氧饱和度监测设备,用于实时、连续检测人体血氧饱和度和脉率。主要工作包括设计实现耳夹式光电传感器、太阳能电池插接件以及蓝牙模块等核心部件。设备和硬件设计采用低功耗元件及模块,数据通过低功耗蓝牙技术传至手机App,软件设计优化数据发送策略,具有低功耗、可穿戴、稳定可靠等特点,适合户外运动或者缺氧性疾病的血氧监测。测试表明,设备蓝牙通信误码率最终控制为0,脉率精度高达98.0%,当模拟仪输出血氧饱和度大于75%时,设备的检测精度高达97.9%。此外,创新性地使用太阳能电池进行冗余供电,整机待机电流为11 μA,全功率工作时长为18 h以上,续航性能优于市面上主流的指夹式血氧仪。
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薛俊伟1 黄岳山1 杜欣1 吴秀勇1 曾伟杰2 席玉胜2陈益民2 赵毓3 吴凯1#*
关键词 可穿戴蓝牙低功耗血氧监测    
Abstract:In this paper, we designed a wearable device for oxygen saturation monitoring, which can achieve real-time detection of SpO2. We designed and implemented several key modules, including a clip-on photoelectric sensor, an interface module of solar cell, and a module of bluetooth low energy (BLE). The hardware design used energy efficient components and modules. Monitoring data were transferred to the application of cellphone by BLE technology. The software design adopted an optimized strategy of data transmission. The wearable device has features of low power, wearable, and reliable, and thus is suitable for outdoor activities and oxygen saturation monitoring for hypoxic diseases patients. Test results showed that the final error rate of the bluetooth communication was 0 and the pulse rate was 980%. Most importantly, the accuracy of the oxygen saturation was 979% when the output of simulator was above 75%. Moreover, we also designed a power supply module using solar cell, in which the machine standby current was 11 μA and the battery life at peak power was more than 18 h. The cell performance of our device was better than those of fingertip pulse oximeters.
Key wordswearable    bluetooth    energy efficient    oxygen saturation monitoring
    
基金资助:国家自然科学基金青年科学基金(31400845);广州市科技计划项目(2014Y2\|00062);广东省科技计划项目(2013B021800027)
引用本文:   
薛俊伟1 黄岳山1 杜欣1 吴秀勇1 曾伟杰2 席玉胜2陈益民2 赵毓3 吴凯1#*. 蓝牙低功耗可穿戴血氧监测设备的设计[J]. 中国生物医学工程学报, 2015, 34(6): 701-707.
Xue JunweiHuang YueshanDu XinWu XiuyongZeng Weijie2Xi YushengChen Yimin. Design of a Wearable Device for SpO2 Monitoring Using BLE. journal1, 2015, 34(6): 701-707.
链接本文:  
http://cjbme.csbme.org/CN/10.3969/j.issn.0258-8021.2015. 06.009     或     http://cjbme.csbme.org/CN/Y2015/V34/I6/701
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