無線射頻辨識系統（RFID）室內導引系統之設計與開發

Desingning and Developing a RFID-based Indoor Guidance System

許多人於進入陌生之室內環境時，常會因對該室內環境的尚不熟悉或是標示不清，或因多數空間之布設具有相似而不易區隔之特性，因而導致其無法順利到達欲前往之位置。雖然全球衛星定位系統（GPS）已廣泛應用於路徑導引之應用，但於室內環境條件下，則會因信號遮蔽而有無法使用之可能。為求全面符合室內環境之導引需求，本研究採用無線射頻辨識系統（RFID）做為室內之定位工具。此一室內導引系統係將代表決策點空間位置之相關訊息，先行存入沿室內各個路徑上所布設之RFID標籤當中，一旦RFID讀取器經由感應接收此項訊息，即可透過資訊系統之運作，進行位置定位、路徑導引及行進修正等功能。此系統不僅能以圖形化介面呈現，亦配合使用語音導引方式，以求引導使用者正確並快速到達所設定之目的地。此系統開發所使用之運作架構、軟硬體設備、標籤內容、路徑搜尋方法以及系統功能設計等相關內容，皆於本文加以探討說明。 It is always not easy to access the interest points for those visitors who are not familiar with theindoor environment with similar spaces design and not clear of indication sign. Although thesatellite positioning, such as GPS, has been broadly applied to many navigation applications, it mightbe still insufficient in an indoor environment where GPS signals are often severely obstructed. Tomeet the indoor requirements, the technique of RFID was utilized to play a role in locating for anindoor guidance system. This system is operated by storing the spatial information into the tags and attaching those tags at the decision points along the indoor paths. Once the RFID reader isinitiated to receive the information from the nearby tags, the indoor guidance system is thenworking to locate the positions, find the ways and update the routing suggestions. A graphicinterface is provided by the system, along with the voice, to guide the users approaching theinterest points. This system’s architecture, software and hardware, tag contents, routing operationand function design are comprehensively discussed by this paper.

It is always not easy to access the interest points for those visitors who are not familiar with theindoor environment with similar spaces design and not clear of indication sign. Although thesatellite positioning, such as GPS, has been broadly applied to many navigation applications, it mightbe still insufficient in an indoor environment where GPS signals are often severely obstructed. Tomeet the indoor requirements, the technique of RFID was utilized to play a role in locating for anindoor guidance system. This system is operated by storing the spatial information into the tags and attaching those tags at the decision points along the indoor paths. Once the RFID reader isinitiated to receive the information from the nearby tags, the indoor guidance system is thenworking to locate the positions, find the ways and update the routing suggestions. A graphicinterface is provided by the system, along with the voice, to guide the users approaching theinterest points. This system’s architecture, software and hardware, tag contents, routing operationand function design are comprehensively discussed by this paper.