Title: Cooperative diagnostics for combinations of large volume metrology systems

Authors: Domenico Augusto Maisano; Luca Mastrogiacomo

Addresses: Politecnico di Torino, Department of Management and Production Engineering (DIGEP), Corso Duca degli Abruzzi 24, 10129, Torino, Italy ' Politecnico di Torino, Department of Management and Production Engineering (DIGEP), Corso Duca degli Abruzzi 24, 10129, Torino, Italy

Abstract: Recent studies show that the combined use of large-volume metrology (LVM) systems (e.g., laser trackers, rotary-laser automatic theodolites, photogrammetric systems, etc.) can lead to a systematic reduction in measurement uncertainty and a better exploitation of the available equipment. The objective of this paper is to present some diagnostic tests for combinations of LVM systems that are equipped with distance and/or angular sensors. Two are the tests presented: a global test to detect the presence of potential anomalies during measurement and a local test to isolate any faulty sensor(s). This diagnostics is based on the cooperation of sensors of different nature, which merge their local measurement data, and it can be implemented in real-time, without interrupting or slowing down the measurement process. The description of the tests is supported by several experimental examples. [Submitted 28 March 2017; Accepted 27 December 2017]

Keywords: large-volume metrology; LVM; distributed sensors; multi-system combination; cooperative diagnostics; statistical test; measurement consistency.

DOI: 10.1504/IJMR.2019.096747

International Journal of Manufacturing Research, 2019 Vol.14 No.1, pp.15 - 42

Received: 28 Mar 2017
Accepted: 27 Dec 2017
Published online: 10 Dec 2018 *

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