An automatic self-installation and calibration method for a 3D position sensing system using ultrasonics

Mahajan, Anupama; Figueroa, Fernando

doi:10.1016/s0921-8890(99)00042-1

Cited by 39 publications

(25 citation statements)

References 5 publications

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“…This is obvious because these positions are used in the formulas for multilateration. Different calibration methods have been proposed: In [14], the ceiling mounted receivers were calibrated by a transmitter moving to at least five known coordinate points. DOLPHIN [15] is a distributed positioning system aimed at ubiquitous computing applications.…”

Section: Related Workmentioning

confidence: 99%

A Self-Contained and Self-Checking LPS with High Accuracy

Walter

Syafrudin

Schweinzer

2013

IJGI

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There are many situations in which it is desirable to use a Local Positioning System (LPS), which constitutes a complete and independent unit, offers high accuracy and in addition is economical to realize. This paper describes the LPS LOSNUS (Localization of Sensor Nodes by Ultra Sound). LOSNUS is a complete and independent LPS where the same system can be used for localization and calibration. Primarily designed for locating numerous quasi-static devices, special care of system construction has taken on costly factors, especially in the construction of the infrastructure and of sensor nodes where locating can be realized with minimal additional hardware costs. LOSNUS enables a calibration process without the need of additional expensive tools and/or laborious time in order to get accurate positions of transmitters. As a result, LOSNUS delivers high locating accuracy at medium update rates, and in case of sufficient number of transmitters can also tolerate single failures in the Time of Arrival (ToA) measurement, allowing arbitrary failure modes. In this article, the system is presented starting from design, realization and algorithms of localization and calibration. Finally, new measurement results are showing the high accuracy of localization based on a discussion of the applied uncertainty description.

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Section: Related Workmentioning

confidence: 99%

A Self-Contained and Self-Checking LPS with High Accuracy

Walter

Syafrudin

Schweinzer

2013

IJGI

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“…In this section the linearized auto-localization method is compared with the inverse positioning method presented in [2]. The test is performed on the 3DLocus system [3], shown in Fig.…”

Section: Evaluation On An Ultrasonic Lpsmentioning

confidence: 99%

“…This method of inverse positioning states that with enough measurements all the beacons can be localized by trilateration techniques [2]. In [3] four different mobile node positions are used to locate the beacon nodes of a 3D LPS.…”

Section: Introductionmentioning

confidence: 99%

Auto-localization algorithm for local positioning systems

et al. 2012

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This paper studies the problem of determining the position of beacon nodes in Local Positioning Systems (LPSs), for which there are no inter-beacon distance measurements available and neither the mobile node nor any of the stationary nodes have positioning or odometry information. The common solution is implemented using a mobile node capable of measuring its distance to the stationary beacon nodes within a sensing radius. Many authors have implemented heuristic methods based on optimization algorithms to solve the problem. However, such methods require a good initial estimation of the node positions in order to find the correct solution. In this paper we present a new method to calculate the inter-beacon distances, and hence the beacons positions, based in the linearization of the trilateration equations into a closed-form solution which does not require any approximate initial estimation. The simulations and field evaluations show a good estimation of the beacon node positions.

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“…The Bat Ultrasonic Location System (4; 5; 6; 7) developed by AT&T, and the MIT Cricket Indoor Location System (8) are well known. Although a calibration method using a robot (9) has been proposed, the required calibration device is too large for use in a number of environments. An auto calibration method was considered in the DOLPHIN system (10), which can calibrate the positions of receivers/transmitters using a small number of reference receivers/transmitters having known positions.…”

Section: P(ŵ|y)=maxmentioning

confidence: 99%