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Proceedings Paper

PSD sensor use in the robot vision system
Author(s): Xiping Cai; Yongjiang Dai; Yuan Zhao; Yan Wang
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Paper Abstract

In order to navigate through its environment a robot vehicle needs to determine its position relative to a certain target. Now in the robot vision system the light spots measuring technique can be used. A charge coupled device camera is used as a sensor in the technique, but because it needs a complex focusing and processing system, the technique is not simple enough and the method for relative positioning is not quick, the processing is computationally intensive. In order to overcome the these defects a simple and reliable sensor, that is the position sensitive detector (PSD) is used as a close range sensor. In this paper, a new algorithm of measuring light spot, the structure and principle of the PSD are introduced. The scheme of measuring with PSD in the robot vision system is demonstrated. Using the system the robot position relative to the target can be determined.

Paper Details

Date Published: 5 August 1994
PDF: 3 pages
Proc. SPIE 2321, Second International Conference on Optoelectronic Science and Engineering '94, (5 August 1994); doi: 10.1117/12.182103
Show Author Affiliations
Xiping Cai, Harbin Institute of Technology (China)
Yongjiang Dai, Harbin Institute of Technology (China)
Yuan Zhao, Harbin Institute of Technology (China)
Yan Wang, Harbin Institute of Technology (China)

Published in SPIE Proceedings Vol. 2321:
Second International Conference on Optoelectronic Science and Engineering '94
Wang Da-Heng; Anna Consortini; James B. Breckinridge, Editor(s)

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