Localization of Mobile Client in Multistory Building using Public Wireless LAN System

Umetani, Tomohiro; Yamashita, Tomoya; Tamura, Yuichi

doi:10.5687/sss.2011.6

Cited by 3 publications

(6 citation statements)

References 13 publications

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“…We built a measurement system to record the signal strengths from the wireless LAN access points [13]. The wireless LAN client was used to obtain the received signal strength indicator (RSSI) values for different places in the building.…”

Section: Data Collectionmentioning

confidence: 99%

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Location Estimation of Mobile Wireless LAN Client in Multistory Buildings using Strength of Received Signals in State Space Framework

Umetani¹,

Yamane

Yamashita

et al. 2012

Transactions of ISCIE

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This paper describes a method for location estimation of mobile wireless local area network (LAN) clients in multistory buildings using the strength of the received signals in a state space framework. Data pertaining to the physical positions of personal electronic devices or mobile robots are important for information services and robotic applications. We focus on integrating the estimation results with other sensor data based on a state space framework. The estimation model for location provides a variance of a mobile client's location. We integrate the estimation results and the motion results of the mobile client using a Kalman filter. The estimation model is re-initialized when the mobile client moves to another floor in the building by detecting the change in the floor number where the mobile client has moved. This is done by using the Bayesian inference. Experimental results show the feasibility of this method.

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Section: Data Collectionmentioning

confidence: 99%

“…This used a one-time measurement of the signal strength from the wireless LAN access points for the training and test data. Umetani et al proposed localization of the wireless LAN client in multistory buildings [13][14][15]. The method estimates the position of the mobile client and the floor number simultaneously.…”

Section: Introductionmentioning

confidence: 99%

Location Estimation of Mobile Wireless LAN Client in Multistory Buildings using Strength of Received Signals in State Space Framework

Umetani¹,

Yamane

Yamashita

et al. 2012

Transactions of ISCIE

Self Cite

View full text Add to dashboard Cite

show abstract

“…We built a measurement system to record the signal strengths from the wireless LAN access points [6]. The wireless LAN client was used to obtain the received signal strength indicator (RSSI) values for different places in the building.…”

Section: Data Collectionmentioning

confidence: 99%

“…Umetani et al presented localization of the wireless LAN client in the multistory buildings [6,7]. The method simultaneously estimates the position of the mobile client and the floor number.…”

Section: Introductionmentioning

confidence: 99%

Localization of Wireless LAN Client in Multistory Buildings using Strength of Received Signals in State Space Framework

Umetani¹,

Yamane

Yamashita

et al. 2012

Stochastic Systems Theory and its Applications (SSS)

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This paper describes a method for localization of a mobile wireless LAN client in multistory buildings using the strength of received signals in a state space framework. Data pertaining to the physical positions of personal electronic devices or mobile robots are important for information services and robotic applications. We focus on integration of the estimation results with other sensor data based on a state space framework. The estimation model for location provides the variance of the position of the mobile client. The estimation model is re-initialized when the mobile client moves to the other floor in the building based on the detection of the change of number of the floor where the mobile client moves by the Bayesian inference. Experimental results show the feasibility of the method.

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“…Therefore, the localization method using few devices is expected for real application such as a navigation of the mobile robots, information services for users who have mobile phones. A number of studies for the localization method using the signal strength from wireless LAN access points have been proposed [2,3,6,7]. This paper deals the simplified measurement for signal strength from the wireless LAN access points to make the localization system in the multistory building.…”

Section: Introductionmentioning

confidence: 99%

Data Acquisition for Stochastic Localization of Wireless Mobile Client in Multistory Building

Umetani

Yamashita²,

Tamura³

2011

28th International Symposium on Automation and Robotics in Construction (ISARC 2011)

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This paper describes a method for the localization of wireless mobile clients in multistory buildings using a wireless LAN system. The method uses public wireless LAN access points for users and robots that are settled at many places in a multistory building. Data on the physical position of personal electronic devices or mobile robots are important in information services and robot applications for construction automation such as the maintenance task in the large scale building. By integrating the data and stored information on objects and places, people and robots can be provided with information on the location of the devices for achieving the tasks. The localization method using few devices is expected for real application such as a navigation of the mobile robots, information services for users who have mobile clients. The paper focuses on the data acquisition for stochastic localization of the wireless LAN client in multistory building. The data acquisition is a crucial issue for making and verification of the localization system. Experimental results show feasibility of the proposed method.

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Localization of Mobile Client in Multistory Building using Public Wireless LAN System

Cited by 3 publications

References 13 publications

Location Estimation of Mobile Wireless LAN Client in Multistory Buildings using Strength of Received Signals in State Space Framework

Location Estimation of Mobile Wireless LAN Client in Multistory Buildings using Strength of Received Signals in State Space Framework

Localization of Wireless LAN Client in Multistory Buildings using Strength of Received Signals in State Space Framework

Data Acquisition for Stochastic Localization of Wireless Mobile Client in Multistory Building

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