Portable Data Acquisition System based on Sensor Fusion Technology

HKUST
Overview

Prof. LIU Ming of HKUST and his team developed a portable data acquisition system based on integration of multisensors, including ladar, inertial sensor, visual sensor, GPS, etc., and algorithm to restructure highly accurate 3-dimensional scenarios

  • Portable Data Acquisition System based on Sensor Fusion Technology
Commercialisation opportunities
Technology licensing agreement
Problem addressed

The conventional multisensory systems are usually large in size and there is no accurate temporal and spatial synchronisation among different sensors. These pose huge challenges to the accuracy of 3D restructuring algorithm

Innovation
  • The actual time is obtained by pulse per second signal generated by GPS, which is divided into 10 parts by the FPGA to trigger camera exposure, where the laser radar and the IMU are synchronized.
  • Adopt CNC-processed cell and developed a calibration algorithm of the extrinsic parameters of the sensors, achieving stability of extrinsic parameters of multisensors.
Key impact
  • The device can function for 24 hours continuously
Application
  • Wide range of usage: high accuracy map creation, AR/VR, autonomous driving, robotics
  • High efficiency
  • High expandability
The Hong Kong University of Science and Technology (HKUST)

The Hong Kong University of Science and Technology (HKUST) (https://hkust.edu.hk/) is a world-class research intensive university that focuses on science, technology and business as well as humanities and social science. HKUST offers an international campus, and a holistic and interdisciplinary pedagogy to nurture well-rounded graduates with global vision, a strong entrepreneurial spirit and innovative thinking. Over 80% of our research work were rated “Internationally excellent” or “world leading” in the Research Assessment Exercise 2020 of Hong Kong’s University Grants Committee. We were ranked 3rd in Times Higher Education’s Young University Rankings 2022, and our graduates were ranked 23rd worldwide and among the best from universities from Asia in Global University Employability Survey 2021.

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