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Related Experiment Video

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

Julie Foucault1, Suzanne Lesecq2, Gabriela Dudnik3

  • 1University Grenoble Alpes, CEA, LETI, F-38000 Grenoble, France. julie.foucault@sermas.com.

Sensors (Basel, Switzerland)
|October 11, 2019
PubMed
Summary

The INSPEX system offers a low-power, compact environment perception solution for obstacle detection. This wearable technology integrates multiple sensors, enhancing navigation safety for humans and robots.

Keywords:
LiDARdata fusionenvironment perceptionportableportable devicesmart systemultra-wideband radarultrasoundvisually impaired and blind (VIB)wearable

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Area of Science:

  • Robotics and Autonomous Systems
  • Sensor Fusion
  • Human-Computer Interaction

Background:

  • Environment perception is critical for safe navigation in vehicles, robots, and for humans in low visibility.
  • Current obstacle avoidance systems use multiple sensors but require significant computational power, limiting their application.
  • There is a need for low-power, compact environment perception systems for portable and wearable applications.

Purpose of the Study:

  • To develop a low-power, small-size, and lightweight environment perception system (INSPEX) for portable and wearable applications.
  • To miniaturize and optimize various range sensors for enhanced obstacle detection capabilities.
  • To integrate a data fusion technique for creating a surrounding model and localizing obstacles.

Main Methods:

  • Integration of multiple range sensors: LiDAR (10m), time-of-flight (4m), ultrasound (2m), and ultra-wideband radar (10m).
  • Development of a data fusion algorithm to combine sensor data.
  • Optimization of sensor technology for low-power consumption and miniaturization.
  • Demonstration of the system integrated into a white cane for visually impaired users.

Main Results:

  • The INSPEX system provides a comprehensive environment perception solution.
  • Miniaturization and optimization of sensors achieved low-power and small-size requirements.
  • Data fusion enables the creation of a surrounding model and obstacle localization.
  • Successful demonstration on a white cane highlights its potential for assistive navigation.

Conclusions:

  • INSPEX offers a viable solution for low-power, wearable environment perception.
  • The system enhances obstacle detection and localization capabilities for various applications.
  • The technology has significant potential for improving navigation safety, particularly for visually impaired individuals.