Home // ALLSENSORS 2023, The Eighth International Conference on Advances in Sensors, Actuators, Metering and Sensing // View article

Rapid and Accurate Time Synchronization using Visible Light for Mobile Sensing

Authors:
Masanori Sugimoto

Keywords: time synchronization, multiplexed chirp signal, rolling-shutter camera

Abstract:
A novel time-synchronization technique for mobile sensing is proposed. It uses an LED source to transmit a multiplexed linear-chirp optical signal and a rolling-shutter camera to capture a reflected image illuminated by the signal. The proposed technique can estimate the time difference between the start time of the transmitted signal and the shutter release time of the camera both accurately and robustly. Experimental results demonstrated that the technique can achieve time difference estimation errors of 8.075 x10^−8 s at the 90th percentile for a single image.

Pages: 31 to 38

Copyright: Copyright (c) IARIA, 2023

Publication date: April 24, 2023

Published in: conference

ISSN: 2519-836X

ISBN: 978-1-68558-083-4

Location: Venice, Italy

Dates: from April 24, 2023 to April 28, 2023