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Open AccessArticle

INSPEX: Optimize Range Sensors for Environment Perception as a Portable System

1
University Grenoble Alpes, CEA, LETI, F-38000 Grenoble, France
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CSEM SA, 2002 Neuchâtel, Switzerland
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Tyndall National Institute, T12 R5CP Cork, Ireland
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STMicroelectronics S.r.l, 80022 Arzano (Naples), Italy
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OnSemi, Airport Business Park, T12 CDF7 Cork, Ireland
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University of Namur, CRIDS, 5000 Namur, Belgium
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Cork Institute of Technology, Bishoptown, T12 P928 Cork, Ireland
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GoSense, 38 rue de l’Université, 69007 Lyon, France
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School of Computer Science, University of Manchester, Manchester M13 9PL, UK
*
Author to whom correspondence should be addressed.
Sensors 2019, 19(19), 4350; https://doi.org/10.3390/s19194350
Received: 14 June 2019 / Revised: 26 September 2019 / Accepted: 5 October 2019 / Published: 8 October 2019
(This article belongs to the Special Issue Wearable Sensors and Devices for Healthcare Applications)
Environment perception is crucial for the safe navigation of vehicles and robots to detect obstacles in their surroundings. It is also of paramount interest for navigation of human beings in reduced visibility conditions. Obstacle avoidance systems typically combine multiple sensing technologies (i.e., LiDAR, radar, ultrasound and visual) to detect various types of obstacles under different lighting and weather conditions, with the drawbacks of a given technology being offset by others. These systems require powerful computational capability to fuse the mass of data, which limits their use to high-end vehicles and robots. INSPEX delivers a low-power, small-size and lightweight environment perception system that is compatible with portable and/or wearable applications. This requires miniaturizing and optimizing existing range sensors of different technologies to meet the user’s requirements in terms of obstacle detection capabilities. These sensors consist of a LiDAR, a time-of-flight sensor, an ultrasound and an ultra-wideband radar with measurement ranges respectively of 10 m, 4 m, 2 m and 10 m. Integration of a data fusion technique is also required to build a model of the user’s surroundings and provide feedback about the localization of harmful obstacles. As primary demonstrator, the INSPEX device will be fixed on a white cane. View Full-Text
Keywords: ultrasound; LiDAR; ultra-wideband radar; environment perception; data fusion; portable device; smart system; visually impaired and blind (VIB); wearable; portable ultrasound; LiDAR; ultra-wideband radar; environment perception; data fusion; portable device; smart system; visually impaired and blind (VIB); wearable; portable
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Foucault, J.; Lesecq, S.; Dudnik, G.; Correvon, M.; O’Keeffe, R.; Di Palma, V.; Passoni, M.; Quaglia, F.; Ouvry, L.; Buckley, S.; Herveg, J.; di Matteo, A.; Rakotovao, T.; Debicki, O.; Mareau, N.; Barrett, J.; Rea, S.; McGibney, A.; Birot, F.; de Chaumont, H.; Banach, R.; Razavi, J.; Ó’Murchú, C. INSPEX: Optimize Range Sensors for Environment Perception as a Portable System. Sensors 2019, 19, 4350.

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