UWB TDOA/TOA测量系统，具有无线时间同步和同步标签和锚定位

2018 IEEE International Conference on Computational Intelligence and Virtual Environments for Measurement Systems and Applications (CIVEMSA) Pub Date : 2018-06-01 DOI:10.1109/CIVEMSA.2018.8439949

B. Choi, Koangkyun La, Sangrok Lee

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引用次数: 11

摘要

在UWB实时定位系统(RTLS)中，随着标签数量的增加，定位更新频率迅速降低。为了解决这一问题，本文引入了一种坐标更新频率不受标签数量影响的TDOA系统。我们还提出了一种同时测量Tag和Anchor坐标的算法。我们进行无线时间同步，以提高测量精度和坐标精度的标签和锚。实验结果证实，不应用时间同步时的定位误差约为4米，采用无线时间同步后定位误差降至0.08米以下。

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UWB TDOA/TOA measurement system with wireless time synchronization and simultaneous tag and anchor positioning

As the number of tag increases in the UWB Real Time Localization System (RTLS), the positioning update frequency decreases rapidly. To solve this problem, this paper introduces a TDOA system whose coordinate update frequency is not affected by the number of tags. We also present an algorithm that simultaneously measures the coordinates of Tag and Anchor. We performed wireless time synchronization to improve measurement precision and coordinate accuracy of Tags and Anchors. The experiment result confirmed that the positioning error of about 4 meter when the time synchronization is not applied is reduced to 0.08 meter or less with wireless time synchronization.

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2018 IEEE International Conference on Computational Intelligence and Virtual Environments for Measurement Systems and Applications (CIVEMSA)

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