Self-positioning fusion system based on estimation of relative coordinates
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초록
Recently, indoor navigation has been applied in large convention centers by using wireless sensornetworks (WSNs), which provide not only a user’s path to be traveled but also orientation and shopping informationto increase user's convenience. This paper presents the localization system for estimating relative coordinateswithout pre-deployment of the reference node based on ultra wide band (UWB) ranging system,which is relatively suitable for indoor localization compared to other wireless communications, and azimuthsensor. The proposed localization system which consists of an azimuth sensor and a mobile node composed ofthree nodes estimates relative coordinates of the reference node without applying any recursive and time consumptionalgorithms. Also, in the process of estimating relative coordinates of the reference node, ranging errorsare minimized through the proposed technique and the number of nodes can be reduced. Experimental resultsshow the feasibility and validity of the proposed system.
Abstract
Recently, indoor navigation has been applied in large convention centers by using wireless sensornetworks (WSNs), which provide not only a user’s path to be traveled but also orientation and shopping informationto increase user's convenience. This paper presents the localization system for estimating relative coordinateswithout pre-deployment of the reference node based on ultra wide band (UWB) ranging system,which is relatively suitable for indoor localization compared to other wireless communications, and azimuthsensor. The proposed localization system which consists of an azimuth sensor and a mobile node composed ofthree nodes estimates relative coordinates of the reference node without applying any recursive and time consumptionalgorithms. Also, in the process of estimating relative coordinates of the reference node, ranging errorsare minimized through the proposed technique and the number of nodes can be reduced. Experimental resultsshow the feasibility and validity of the proposed system.
참고문헌 (15)
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