On Application of a Positioning System Using Photosensors with User Mobility Support in HealthCare System

IF 0.8 4区综合性期刊 Q3 MULTIDISCIPLINARY SCIENCES Proceedings of the National Academy of Sciences, India Section A: Physical Sciences Pub Date : 2022-06-24 DOI:10.1007/s40010-022-00792-x

S. Biswas, Z. Ghassemlooy, H. Le-Minh, S. Chattopadhyay, X. Tang, B. Lin

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引用次数: 2

Abstract

An indoor visible light positioning system using the received signal strength intensity method and the trilateration technique with user mobility support is proposed for applications, e.g. healthcare. Accurate position information of medical staffs and patients is required for data transmission, tracking, navigation, etc. Seamless data transmission while user is on the move has been conceptualized considering the optical network formed by photosensor (light emitting diode)-based transmitters. Efficiency of these services depends on the position accuracy. To investigate factors contributing to higher position errors in a practical environment, the proposed system is evaluated. Evaluation is done through simulation and experiment for different channel conditions, and the receiver rotation due to user mobility. Simulation results show an average two-dimensional position error of 0.32 m in a channel with a strong background light illumination level of − 60 dBm. Experimental results show that the mean position error is 0.7 m in a normal daytime indoor light condition.

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支持用户移动的光传感器定位系统在医疗保健系统中的应用

提出了一种采用接收信号强度法和用户移动支持三边定位技术的室内可见光定位系统，用于医疗保健等应用。数据传输、跟踪、导航等需要准确的医护人员和患者位置信息。考虑到基于光电传感器(发光二极管)的发射器形成的光网络，用户移动时的无缝数据传输已经被概念化。这些服务的效率取决于位置的准确性。为了在实际环境中研究导致较高位置误差的因素，对所提出的系统进行了评估。通过仿真和实验对不同信道条件和用户移动引起的接收机旋转进行了评估。仿真结果表明，在强背景光照水平为−60 dBm的通道中，平均二维位置误差为0.32 m。实验结果表明，在正常的日间室内光照条件下，平均位置误差为0.7 m。

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