PSD sensor use in the robot vision system

Xiping Cai; Yongjiang Dai; Yuan Zhao; Yan Wang

doi:10.1117/12.182103

5 August 1994 PSD sensor use in the robot vision system

Xiping Cai, Yongjiang Dai, Yuan Zhao, Yan Wang

Proceedings Volume 2321, Second International Conference on Optoelectronic Science and Engineering '94; (1994) https://doi.org/10.1117/12.182103
Event: Optoelectronic Science and Engineering '94: International Conference, 1994, Beijing, China

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.

Citation Download Citation

Xiping Cai, Yongjiang Dai, Yuan Zhao, and Yan Wang "PSD sensor use in the robot vision system", Proc. SPIE 2321, Second International Conference on Optoelectronic Science and Engineering '94, (5 August 1994); https://doi.org/10.1117/12.182103

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