Precise self-calibration of ultrasound based indoor localization systems

Runge, Armin; Baunach, Marcel Carsten; Kolla, Reiner

doi:10.1109/ipin.2011.6071920

Cited by 17 publications

(12 citation statements)

References 8 publications

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“…However, it has a lower level of accuracy (in centimeters) and suffers a lot of interference from reflected ultrasound signals propagated around by other sources such as the collision of metals. Some recent research work [32,33] was carried out under ultrasound based indoor localization.…”

Section: Position Systemsmentioning

confidence: 99%

Recent Advances in Wireless Indoor Localization Techniques and System

Farid

Nordin

Ismail

2013

Journal of Computer Networks and Communications

420

228

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The advances in localization based technologies and the increasing importance of ubiquitous computing and context-dependent information have led to a growing business interest in location-based applications and services. Today, most application requirements are locating or real-time tracking of physical belongings inside buildings accurately; thus, the demand for indoor localization services has become a key prerequisite in some markets. Moreover, indoor localization technologies address the inadequacy of global positioning system inside a closed environment, like buildings. Based on this, though, this paper aims to provide the reader with a review of the recent advances in wireless indoor localization techniques and system to deliver a better understanding of state-of-the-art technologies and motivate new research efforts in this promising field. For this purpose, existing wireless localization position system and location estimation schemes are reviewed, as we also compare the related techniques and systems along with a conclusion and future trends.

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Section: Position Systemsmentioning

confidence: 99%

Recent Advances in Wireless Indoor Localization Techniques and System

Farid

Nordin

Ismail

2013

Journal of Computer Networks and Communications

420

228

View full text Add to dashboard Cite

show abstract

“…In [18] a two-step self-calibration method is proposed which does not require any pre-calibrated positions if relative positions are sufficient. In order to perform that task no additional hardware besides US receivers or transmitters and radio transceivers, which are already available for a WSN, are required.…”

Section: Related Workmentioning

confidence: 99%

“…(18) According to F.7a is calculated as (19) In this case the meaning of is the mean systematic correction factor. The variance associated with can be calculated similar to F.7b as (20) The mean variance of the correction incorporates the uncertainty of the calibration and the uncertainty of the evaluation of .…”

Section: Computation Of Uncertainty Parametersmentioning

confidence: 99%

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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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“…of interference [4], [5]. WLAN is the most widely used indoor positioning means, but phase sampling requires a priori knowledge of existing access points, which is very time consuming.…”

Section: Introductionmentioning

confidence: 99%

The Image-Based Positioning Technique Using Inter-Pixel Relation Network

Zhang

Zhao²

2020

IEEE Access

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Accurate location information is very important for human beings and agents. However, GPS has very limited positioning accuracy or even can not work in challenging environments such as indoor and urban canyons, and other solutions suffer from different shortcomings. It is very meaningful to use the scene image captured by the high-definition camera on the smart phone to locate indoor through the neural network, but the existing image-based positioning methods do not take into account the interrelationship of diffenrent instances of the same feature space. In this paper we present a novel network architecture, which embeds Scene Enhancement module and Relational Network (RN) into the end-to-end positioning system. The system was tested in three typical scenarios, and the test results show that its performance outerperforms existing image-based schemes in most cases. INDEX TERMS Indoor positioning, inter-pixel relation network, scene image enhancement.

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Precise self-calibration of ultrasound based indoor localization systems

Cited by 17 publications

References 8 publications

Recent Advances in Wireless Indoor Localization Techniques and System

Recent Advances in Wireless Indoor Localization Techniques and System

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

The Image-Based Positioning Technique Using Inter-Pixel Relation Network

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