New Telemetric Three-Dimensional Positioning Method of Alternating Current Excitation

郭旭东; 颜国正; 何文辉

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New Telemetric Three-Dimensional Positioning Method of Alternating Current Excitation

更新时间：2025-12-08

- New Telemetric Three-Dimensional Positioning Method of Alternating Current Excitation
- Vol. 41, Issue 6, Pages: 717-721(2007)
- 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：
- DOI：
  CLC： R318.6;TM930.1
- Online First：10 June 2007，
  
  Published：2007
- 稿件说明：
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郭旭东, 颜国正, 何文辉. New Telemetric Three-Dimensional Positioning Method of Alternating Current Excitation[J]. 2007, 41(6): 717-721.
DOI：

郭旭东, 颜国正, 何文辉. New Telemetric Three-Dimensional Positioning Method of Alternating Current Excitation[J]. 2007, 41(6): 717-721. DOI：

摘要

为了确定口服式生理参数检测胶囊进入人体消化道后的空间位置

提出了基于微粒群算法的交变励磁定位新方法.在人的体表布置2个圆柱状励磁线圈

通入时分正弦信号

同时在胶囊内封装3个相互正交的感应线圈.由定位模型建立以胶囊位置为变量的六元高次非线性方程组

运用改进的微粒群算法对其求解

由此实现胶囊位置的遥测.实验表明:磁定位方法正确可行

模型精度高

与传统算法相比

具有收敛速度快、精度高的优良性能.该方法不需要昂贵的大型专门设备

定位系统结构简单

能实现微型化和集成化

也可应用于其他非导磁环境中的位置遥测.

Abstract

In order to determine the three-dimensional(3D)position of a detecting microcapsule in the gastrointestinal tract

a novel positioning method is presented based on alternating magnetic field and particle swarm optimization(PSO)algorithm. In telemetering two cylindrical energizing coils are located on the abdomen. Both coils are excited by time-sharing sinusoidal signal

and three induction coils whose axes are orthogonally mounted are sealed in the microcapsule. According to Biot-Savart law and Lenz law

a positioning model describing the relation between the induced electromotive force and the 3D position is derived. Then the position and orientation of the microcapsule are calculated via a nonlinear equation system by the improved PSO algorithm. The experiment shows that the positioning method is correct and the model has high precision. The PSO algorithm succeeds in solving high dimension problems

and its precision and performance are superior to conventional algorithms. The positioning method needs not special and expensive apparatus

and the miniaturization and integration can be easily realized.

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references

Jacob H, Levy D, Shreiber R, et al. Localization of the given M2A ingestible capsule in the given diagnostic imaging system[J]. Gastrointestinal Endoscopy, 2002, 55(5):135-141.

Uehara A, Hoshina K. Capsule endoscope NORIKA system[J]. Minimally Invasive Therapy Alied Technologies, 2003, 12(5): 227-234.

Thomas S. SmartPill redefines “noninvasive” [J]. Buffalo Physician, 2006, 40(3): 13-14.

Wang Wenxing, Yan Guozheng, Sun Fang, et al. A non-invasive method for gastrointestinal parameter monitoring [J]. World J Gastroenterol, 2005, 11(4):521-524.

Kennedy J, Eberhart R C. Particle swarm optimization[C]∥Proceeding of 1995 IEEE International Conference on Neural Networks.Piscataway,USA: IEEE, 1995:1942-1948.

Eberhart R C, Kennedy J. A new optimizer using particle swarm theory [C]∥Proceedings of the Sixth International Symposium on Micro Machine and Human Science. Piscataway, USA: IEEE, 1995:39-43.

Parsopoulos K E, Vrahatis M N. Recent approaches to global optimization problems through particle swarm optimization [J]. Natural Computing, 2002, 1(2/3):235-306.

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