Easily-Deployable Acoustic Local Positioning System Based on Auto-Calibrated Wireless Beacons
Self-calibrated Acoustic Local Positioning Systems (ALPS) generally require a high consumption of hardware and software resources to obtain the user’s position at an acceptable update rate. To address this limitation, this work proposes a self-calibrated ALPS based on a software/hardware c...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-03-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/19/6/1385 |
| _version_ | 1828155168786481152 |
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| author | José A. Moreno Fernando J. Álvarez Teodoro Aguilera José A. Paredes |
| author_facet | José A. Moreno Fernando J. Álvarez Teodoro Aguilera José A. Paredes |
| author_sort | José A. Moreno |
| collection | DOAJ |
| description | Self-calibrated Acoustic Local Positioning Systems (ALPS) generally require a high consumption of hardware and software resources to obtain the user’s position at an acceptable update rate. To address this limitation, this work proposes a self-calibrated ALPS based on a software/hardware co-design approach. This working architecture allows for efficient communications, signal processing tasks, and the running of the positioning algorithm on low-cost devices. This fact also enables the real-time system operation. The proposed system is composed of a minimum of four RF-synchronized active acoustic beacons, which emit spread-spectrum modulated signals to position an unlimited number of receiver nodes. Each receiver node estimates the beacons’ position by means of an auto-calibration process and then computes its own position by means of a 3D multilateration algorithm. A set of experimental tests has been carried out where the feasibility of the proposed system is demonstrated. In these experiments, accuracies below 0.1 m are obtained in the determination of the receptor node position with respect to the set of previously-calibrated beacons. |
| first_indexed | 2024-04-11T22:49:25Z |
| format | Article |
| id | doaj.art-e2bc4a766f174856a1fc57b1f9efbf6a |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T22:49:25Z |
| publishDate | 2019-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-e2bc4a766f174856a1fc57b1f9efbf6a2022-12-22T03:58:38ZengMDPI AGSensors1424-82202019-03-01196138510.3390/s19061385s19061385Easily-Deployable Acoustic Local Positioning System Based on Auto-Calibrated Wireless BeaconsJosé A. Moreno0Fernando J. Álvarez1Teodoro Aguilera2José A. Paredes3Sensory System Research Group, University of Extremadura, 06006 Badajoz, SpainSensory System Research Group, University of Extremadura, 06006 Badajoz, SpainSensory System Research Group, University of Extremadura, 06006 Badajoz, SpainSensory System Research Group, University of Extremadura, 06006 Badajoz, SpainSelf-calibrated Acoustic Local Positioning Systems (ALPS) generally require a high consumption of hardware and software resources to obtain the user’s position at an acceptable update rate. To address this limitation, this work proposes a self-calibrated ALPS based on a software/hardware co-design approach. This working architecture allows for efficient communications, signal processing tasks, and the running of the positioning algorithm on low-cost devices. This fact also enables the real-time system operation. The proposed system is composed of a minimum of four RF-synchronized active acoustic beacons, which emit spread-spectrum modulated signals to position an unlimited number of receiver nodes. Each receiver node estimates the beacons’ position by means of an auto-calibration process and then computes its own position by means of a 3D multilateration algorithm. A set of experimental tests has been carried out where the feasibility of the proposed system is demonstrated. In these experiments, accuracies below 0.1 m are obtained in the determination of the receptor node position with respect to the set of previously-calibrated beacons.https://www.mdpi.com/1424-8220/19/6/1385Acoustic Local Positioning System (ALPS)wireless beaconsauto-calibrationdigital signal processingembedded systems |
| spellingShingle | José A. Moreno Fernando J. Álvarez Teodoro Aguilera José A. Paredes Easily-Deployable Acoustic Local Positioning System Based on Auto-Calibrated Wireless Beacons Sensors Acoustic Local Positioning System (ALPS) wireless beacons auto-calibration digital signal processing embedded systems |
| title | Easily-Deployable Acoustic Local Positioning System Based on Auto-Calibrated Wireless Beacons |
| title_full | Easily-Deployable Acoustic Local Positioning System Based on Auto-Calibrated Wireless Beacons |
| title_fullStr | Easily-Deployable Acoustic Local Positioning System Based on Auto-Calibrated Wireless Beacons |
| title_full_unstemmed | Easily-Deployable Acoustic Local Positioning System Based on Auto-Calibrated Wireless Beacons |
| title_short | Easily-Deployable Acoustic Local Positioning System Based on Auto-Calibrated Wireless Beacons |
| title_sort | easily deployable acoustic local positioning system based on auto calibrated wireless beacons |
| topic | Acoustic Local Positioning System (ALPS) wireless beacons auto-calibration digital signal processing embedded systems |
| url | https://www.mdpi.com/1424-8220/19/6/1385 |
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