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Optical Engineering • Open Access

Line scanning time-of-flight laser sensor for intelligent transport systems, combining wide field-of-view optics of 30 deg, high scanning speed of 0.9 ms/line, and simple sensor configuration
Author(s): Masaharu Imaki; Shumpei Kameyama; Eitaro Ishimura; Masaharu Nakaji; Hideo Yoshinaga; Yoshihito Hirano

Paper Abstract

We developed a line scanning time-of-flight (TOF) laser sensor for an intelligent transport system (ITS), which combines wide field-of-view (FOV) receiving optics of 30 deg and a high-speed microelectro mechanical system scanner of 0.9  ms/line with a simple sensor configuration. The newly developed high-aspect ratio photodiode realizes the scanless and wide FOV receiver. The sinusoidal wave intensity modulation method is used for the TOF measurement. This enables the noise reduction of the trans-impedance amplifier by applying the LC-resonant method. The vehicle detection and axle counting, which are the important functions in ITS, are also demonstrated.

Paper Details

Date Published: 20 October 2016
PDF: 6 pages
Opt. Eng. 56(3) 031205 doi: 10.1117/1.OE.56.3.031205
Published in: Optical Engineering Volume 56, Issue 3
Show Author Affiliations
Masaharu Imaki, Mitsubishi Electric Corp. (Japan)
Shumpei Kameyama, Mitsubishi Electric Corp. (Japan)
Eitaro Ishimura, Mitsubishi Electric Corp. (Japan)
Masaharu Nakaji, Mitsubishi Electric Corp. (Japan)
Hideo Yoshinaga, Mitsubishi Electric Corp. (Japan)
Yoshihito Hirano, Mitsubishi Electric Corp. (Japan)

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