Accurate Bluetooth Positioning Using Weighting and Large Number of Devices Measurements

Jan, Yih-Guang; Tseng, Hsien‐Wei; Lee, Yang-Han; Lo, Chi‐Wen; Yen, Liang-Yu

doi:10.1007/s11277-014-1921-x

Cited by 5 publications

(2 citation statements)

References 6 publications

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“…We used a fuzzy controller to reduce the complexity of the algorithm used to control the system. (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11) The micro-controller analysis and optimization of RSSI are applied to the fan speed control, (12)(13)(14)(15)(16) and a fuzzy controller system, based on the value of the processed RSSI, is used, which is the basis for determining the distance between the user and the fan. In the group system, the speed of the fan closer to the user is calculated through the algorithm, and the fan speed is adjusted instantly.…”

Section: Introductionmentioning

confidence: 99%

An Energy-saving Fuzzy Control Fan Array with Bluetooth Received Signal Strength Indicator Sensing

Chen¹,

Lee²,

Lan³

et al. 2022

Sensors and Materials

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In this study, we developed a group of multipoint user location sensing fans to achieve an energy-saving control system. In general, a fan has functions of cooling and exhausting, depending on the use scenario. The proposed system employs the wireless signal strength of a user's mobile device to control the fan speed by multipoint position sensing. The signal strength is suitable for use as a control parameter to allow the wind speed to be stabilized to achieve a comfortable environment, and the results of the calculation of the fan group energy efficiency control algorithm based on the multipoint location information established in this paper are compared with the actual measured values validated to achieve an energy-efficient fan control system.

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Section: Introductionmentioning

confidence: 99%

An Energy-saving Fuzzy Control Fan Array with Bluetooth Received Signal Strength Indicator Sensing

Chen¹,

Lee²,

Lan³

et al. 2022

Sensors and Materials

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“…2009), Bluetooth (Jan et al. 2014), radio frequency identification (RFID) (Zhou and Shi 2009), UWB and CSS have become attractive potential solutions to this problem. Positioning systems based on RFID, Wi-Fi (Figuera et al.…”

Section: Introductionmentioning

confidence: 99%

Design of a TDOA location engine and development of a location system based on chirp spread spectrum

Wang

Zheng

et al. 2016

SpringerPlus

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Location based services (LBS) provided by wireless sensor networks have garnered a great deal of attention from researchers and developers in recent years. Chirp spread spectrum (CSS) signaling formatting with time difference of arrival (TDOA) ranging technology is an effective LBS technique in regards to positioning accuracy, cost, and power consumption. The design and implementation of the location engine and location management based on TDOA location algorithms were the focus of this study; as the core of the system, the location engine was designed as a series of location algorithms and smoothing algorithms. To enhance the location accuracy, a Kalman filter algorithm and moving weighted average technique were respectively applied to smooth the TDOA range measurements and location results, which are calculated by the cooperation of a Kalman TDOA algorithm and a Taylor TDOA algorithm. The location management server, the information center of the system, was designed with Data Server and Mclient. To evaluate the performance of the location algorithms and the stability of the system software, we used a Nanotron nanoLOC Development Kit 3.0 to conduct indoor and outdoor location experiments. The results indicated that the location system runs stably with high accuracy at absolute error below 0.6 m.Electronic supplementary materialThe online version of this article (doi:10.1186/s40064-016-3632-0) contains supplementary material, which is available to authorized users.

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Image-only place recognition based on regional aggregating ConvNet features for underground parking lots

et al. 2023

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Accurate Bluetooth Positioning Using Weighting and Large Number of Devices Measurements

Cited by 5 publications

References 6 publications

An Energy-saving Fuzzy Control Fan Array with Bluetooth Received Signal Strength Indicator Sensing

An Energy-saving Fuzzy Control Fan Array with Bluetooth Received Signal Strength Indicator Sensing

Design of a TDOA location engine and development of a location system based on chirp spread spectrum

Image-only place recognition based on regional aggregating ConvNet features for underground parking lots

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