Analysis of the indoor GPS system as feedback for the robotic alignment of fuselages using laser radar measurements as comparison

Mosqueira, G.; Apetz, J.; Santos, Keliane Marcela; Villani, Emília; Suterio, Ricardo; Trabasso, Luı́s Gonzaga

doi:10.1016/j.rcim.2012.03.004

Cited by 63 publications

(40 citation statements)

References 11 publications

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“…Detailed system analyses are presented by Schmitt et al [7] and Mosqueira et al [8]. Wang et al [9] showed that the tracking accuracy is similar to the static accuracy for speeds below 10 cm/s.…”

Section: Indoor Global Positioning System (Igps)mentioning

confidence: 99%

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3D Ground-Truth Systems for Object/Human Recognition and Tracking

Godil

Bostelman

Saidi

et al. 2013

2013 IEEE Conference on Computer Vision and Pattern Recognition Workshops

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We have been researching three dimensional (3D) ground-truth systems for performance evaluation of vision and perception systems in the fields of smart manufacturing and robot safety. In this paper we first present an overview of different systems that have been used to provide ground-truth (GT) measurements and then we discuss the advantages of physically-sensed groundtruth systems for our applications. Then we discuss in detail the three ground-truth systems that we have used in our experiments: ultra wide-band, indoor GPS, and a camera-based motion capture system. Finally, we discuss three different perception-evaluation experiments where we have used these GT systems

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Section: Indoor Global Positioning System (Igps)mentioning

confidence: 99%

“…The iGPS was used because this application required high accuracy measurements of relatively fast-moving objects. Even though there was significant occlusion of the iGPS receivers, there were enough transmitters (8) to ensure that accurate date could be collected.…”

Section: Evaluation Of Automated Guided Vehicle (Agv) Safety Standardmentioning

confidence: 99%

3D Ground-Truth Systems for Object/Human Recognition and Tracking

Godil

Bostelman

Saidi

et al. 2013

2013 IEEE Conference on Computer Vision and Pattern Recognition Workshops

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“…It has been mainly used for assembly inspection as a closed-loop metrology system and reverse engineering applications in the aerospace industry. It is used for assembly verification and dimensional inspection by comparison with nominal CAD data, and then the results are used to verify and support other machining activities such as drilling and loading [1,2], for example, the alignment of fuselages as a closed loop system for the multi-stage assembly process [3]. Unlike a CMM, the LR is capable of high-speed measurement to fit with short production cycle times.…”

Section: Introductionmentioning

confidence: 99%

“…Whilst not a new technology in itself, it has previously been used for aerospace applications over very large distances (up to and beyond 50 m) [1][2][3], but more recently the technology has been identified as a potential competitor to traditional CMM measurement for automotive BIW applications. Over a range of a few meters, the accuracy of LR could be used with the advantage of being portable, on a robot on rails, for automotive BIW applications.…”

Section: Introductionmentioning

confidence: 99%

Evaluating the capability of laser scanning to measure an automotive artefact: a comparison study of touch trigger probe and laser-scanning

Kiraci

Turley

Attridge

et al. 2016

IJPQM

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The increasing interest towards intelligent systems has led to a demand for the development of zero-defect strategies, with a paradigm shift from off-line and dedicated to inline metrology with integrated robotic systems. However, a major barrier preventing the systematic uptake of in-line metrology is the lack of evaluation of system capability in terms of accuracy, repeatability and measurement time, when compared to the well-established coordinate measuring machine (CMM). In this study, a robotic Laser Radar (LR) solution is assessed in the context of automotive dimensional inspection of Body-In-White (BIW) applications. The objective is both to understand the effect of robot re-positioning error on measurement accuracy and repeatability and to compare measurement results against a CMM. Eighty-one surface points, six edge points, twenty-five holes and sixteen slots were selected from an industry standard measurement plan. Whilst LR exhibits a lower measurement accuracy than twin-column CMM, its repeatability is well within the specification limits for body shell quality inspection. Therefore, as a real-time in-line metrology tool, it is a genuine prospect to exploit. This research makes a significant contribution toward in-line metrology for dimensional inspection, for automotive application, for rapid detection and for correction of assembly defects in real time, with subsequent reduction of scrap and number of repairs/re-works.

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“…[1][2][3][4] Recently, optical measurement technology, as an advanced means of measurement, is widely applied in modern large-scale industry with its portability, noncontact, high precision, and large measurement range. Considering the need for accurate, flexible, and efficient solutions of real-time large-scale position and orientation measurement, several distributed large-scale metrology systems 5,6 based on optical techniques are currently available, ranging from digital photogrammetry, 7,8 the indoor global positioning system (iGPS), 9,10 to the workspace measuring and positioning system (wMPS). 11 The operating theories of these distributed optical systems for position and orientation measurement are essentially the same: having a series of measuring stations working cooperatively, the optical information is collected to determine the coordinates of a set of control points attached to the moving object; subsequently, the position and orientation of the object can be calculated.…”

Section: Introductionmentioning

confidence: 99%

Real-time position and orientation measurement with occlusion handling for distributed optical large-scale metrology systems

et al. 2013

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Abstract. Occlusion is a major problem for real-time position and orientation measurement with distributed optical large-scale metrology systems. This paper presents two novel methods with occlusion handling to address this issue, which should be used in combination for practical applications. These two approaches are based on the constraints established by three control points and six control points, respectively, and then the position and orientation can be calculated through iterative optimization algorithms. In this paper, all the work is carried out by using the workspace measuring and positioning system as a verification platform. Subject terms: position and orientation measurement; occlusion handling; distributed metrology system; optical large-scale metrology system; workspace measuring and positioning system.

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Analysis of the indoor GPS system as feedback for the robotic alignment of fuselages using laser radar measurements as comparison

Cited by 63 publications

References 11 publications

3D Ground-Truth Systems for Object/Human Recognition and Tracking

3D Ground-Truth Systems for Object/Human Recognition and Tracking

Evaluating the capability of laser scanning to measure an automotive artefact: a comparison study of touch trigger probe and laser-scanning

Real-time position and orientation measurement with occlusion handling for distributed optical large-scale metrology systems

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