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Verification of the indoor GPS system by comparison with points calibrated using a network of laser tracker measurements


Reference:

Muelaner, J. E., Wang, Z., Martin, O., Jamshidi, J. and Maropoulos, P. G., 2009. Verification of the indoor GPS system by comparison with points calibrated using a network of laser tracker measurements. In: Proceedings of the 6th CIRP-Sponsored International Conference on Digital Enterprise Technology. Vol. 66. Springer-Verlag, pp. 607-619. (Advances in Intelligent and Soft Computing)

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    Official URL:

    http://dx.doi.org/10.1007/978-3-642-10430-5_47

    Abstract

    This paper details a method of determining the uncertainty of dimensional measurement for a three dimensional coordinate measurement machine. An experimental procedure was developed to compare three dimensional coordinate measurements with calibrated reference points. The reference standard used to calibrate these reference points was a fringe counting interferometer with the multilateration technique employed to establish three dimensional coordinates. This is an extension of the established technique of comparing measured lengths with calibrated lengths. Specifically a distributed coordinate measurement device was tested which consisted of a network of Rotary-Laser Automatic Theodolites (R-LATs), this system is known commercially as indoor GPS (iGPS). The method was found to be practical and able to establish that the expanded uncertainty of the basic iGPS system was approximately 1 mm at a 95% confidence level.

    Details

    Item Type Book Sections
    CreatorsMuelaner, J. E., Wang, Z., Martin, O., Jamshidi, J. and Maropoulos, P. G.
    DOI10.1007/978-3-642-10430-5_47
    Uncontrolled Keywordsusmn, coordinate uncertainty, spatial analyzer, indoor gps, cmm, igps
    DepartmentsFaculty of Engineering & Design > Mechanical Engineering
    Research CentresInnovative Design & Manufacturing Research Centre (IdMRC)
    Publisher StatementMuelaner_DET_2009_607.pdf: The original publication is available at www.springerlink.com
    StatusPublished
    ID Code17633
    Additional Information6th International Conference on Digital Enterprise Technology, Dec 14-16, 2009. Hong Kong, Peoples Republic of China. * Best Paper Award ** Results given in this paper were obtained using the original Workspace software and a typical 4 transmitter setup. Further testing has shown that uncertainty may be reduced by using newer software versions, and more complicated configurations with more hardware.

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