低功耗人体全消化道生理参数遥测胶囊的设计

鲁丽; 颜国正; 王志武; 姜萍萍; 赵凯

doi:10.3788/OPE.20132103.0687

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低功耗人体全消化道生理参数遥测胶囊的设计

微纳技术与精密机械 | 更新时间：2020-08-12

- 低功耗人体全消化道生理参数遥测胶囊的设计
- Design of low power telemetry capsules for physiological parameters of entire digestive tract
- 光学精密工程 2013年21卷第3期页码：687-693
- 作者机构：
  
  上海交通大学电子信息与电气工程学院上海,200240
- 作者简介：
- 基金信息：
  
  上海市科委资助项目(14XD1423000)
- DOI：10.3788/OPE.20132103.0687
  中图分类号： TP212.3;TP242.3
- 收稿日期：2012-09-14，
  
  修回日期：2012-12-26，
  
  网络出版日期：2013-03-20，
  
  纸质出版日期：2013-03-15
- 稿件说明：
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鲁丽颜国正王志武姜萍萍赵凯. 低功耗人体全消化道生理参数遥测胶囊的设计[J]. 光学精密工程, 2013,21(3): 687-693

LU Li YAN Guo-zheng Wang Zhi-wu JIA Ping-ping ZHAO Kai. Design of low power telemetry capsules for physiological parameters of entire digestive tract[J]. Editorial Office of Optics and Precision Engineering, 2013,21(3): 687-693
鲁丽颜国正王志武姜萍萍赵凯. 低功耗人体全消化道生理参数遥测胶囊的设计[J]. 光学精密工程, 2013,21(3): 687-693 DOI： 10.3788/OPE.20132103.0687.

LU Li YAN Guo-zheng Wang Zhi-wu JIA Ping-ping ZHAO Kai. Design of low power telemetry capsules for physiological parameters of entire digestive tract[J]. Editorial Office of Optics and Precision Engineering, 2013,21(3): 687-693 DOI： 10.3788/OPE.20132103.0687.

摘要

设计了一种连续监测胃肠道生理参数的低功耗参数遥测胶囊，它主要包括传感器模块、低功耗专用集成芯片和无线射频模块。首先，采用三态时钟管理单元为集成芯片内部的各个模块选择合适的时钟频率，并在模块闲置时关闭相应模块的时钟来降低集成芯片的功耗。其次，采用单工通讯、数据暂存和减小发射功率等方法降低射频模块的功耗。最后，通过软件设计使胶囊间歇工作以降低系统整体功耗。测试结果表明：专用集成芯片工作时电流约为300 A@2 MHz，休眠时约为4 A@28 kHz；射频模块发射时电流约为12 mA，单片机采集数据时电流约为300 A。与第二代参数胶囊相比，射频模块和单片机的功耗分别降低了约47%和24%，可连续工作时间达到136 h，基本满足参数胶囊长时连续监测胃肠道生理参数的要求。

Abstract

A low power consumption telemetry capsule was designed for monitoring the gastrointestinal tracts parameters in long-term and continuation. The capsule consisted of a sensor module

a low power consumption special integrated chip and a wireless emission module mainly. First

to reduce the integrated chip power consumption

a three-state clock management unit was used to choose the appropriate clock frequency for the internal modules of the integrated chip and to shut down the clocks of correcting idle modules. Then

the simplex communication

data temporary storage

reducing transmitting power

etc

were used to reduce the power consumption of the RF module. Finally

the capsule was controlled at work intermittently by the software to reduce the system overall power consumption. Test results show that the work current of the special integrated chip is about 300 A @ 2 MH and its dormancy current is about 4 A @ 28 kHz. Furthermore

the emission current from the RF module is about 12 mA

and the current of collecting data by a microcontroller is about 300 A. As compared with the second generation parameter capsule

the power consumptions of the RF module and the microcontroller are reduced by about 47% and 24%

respectively

and the work time is about 136 h continuously

which basically meets the demands of the capsules for monitoring the gastrointestinal tracts parameters in long-term and continuation.

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Keywords

references

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