無線定位系統佈建與調校探討

Case Study: Construction and Tuning of Wireless Positioning System

蔣是文(Shih-Wen Chiang) ； 楊惠國(Hui-Kuo Yang)

《電腦與通訊》 123期 (2008/03) Pp. 42-48

https://doi.org/10.29917/CCLTJ.200803.0007

摘要

在無線定位系統中，由於無線訊號易受不同環境之影響，其中包含溫濕度、地形、無線網路佈建方式、室內外等因子，而造成訊號不穩定，進而降低定位準確度。無線定位系統如何在不同環境中，維持定位準確度成為重要之議題。本文將以案例的方式探討無線定位系統的佈建與調校，實地於不同環境進行定位測試，尋找出影響定位準確度之因素，並針對不同的應用情境與需求，提出對應調校策略來降低定位準確度所受到之影響。

關鍵字

無線定位系統 ； 訊號強度指標 ； 定位服務 ； 即時定位系統

並列摘要

In this article we discuss various factors that will decrease the accuracy of a Wi-Fi positioning system by analyzing and evaluating on-site surveys conducted last year. It is important to address these factors and seek effective strategies to eliminate negative causalities. We first introduce deployment and settings of wireless networks in each case. Then we continue to address how on-site survey is conducted. Finally conclusions and given on how positioning system is adjusted to get adapted in order to counteract negative environmental causalities.

並列關鍵字

Wireless Positioning System ； WPS ； Received Signal Strength Index ； RSSI ； Location-Based Service ； LBS ； Real-Time Location Systems