Optical recognition and distance measurer

A distance measuring device and optical identification technology, which is applied in the field of optical measurement, can solve problems such as low precision, poor resolution, and poor real-time performance, and achieve the effects of high precision, high resolution, and good real-time performance
CN101290351AInactive Publication Date: 2008-10-22CHINA AGRI UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA AGRI UNIV
Publication Date
2008-10-22
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention provides an optical identification and range-finding device. The device comprises a laser transmitting unit used to transmit two bundles of combination rays formed by laser with different wavelengths to an object to be measured, a laser receiving unit used to receive optical signals reflected by the object to be measured and performing photoelectric conversion to the received optical signals and outputting electric signals, a demodulation unit used to demodulate the electric signals output by the laser receiving unit into electric signals produced by the two bundles of the laser with the different wavelengths, an analog / digital (A / D) conversion unit used to perform analog / digital (A / D) conversion to the electric signals output by the demodulation unit and output digital signals, a direction adjustment unit used to adjust the propagation direction of the combination rays emitted by the laser transmitting unit and a control unit used for the control of the whole device. The device has high detection accuracy, quick speed, and good real-time performance.
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Description

technical field

[0001] The invention relates to the technical field of optical measurement, in particular to an optical identification and distance measuring device used in a fruit picking robot system. Background technique

[0002] In the design of the fruit picking robot, the role of the vision system is to obtain the specific location information of the fruit, then move the robotic arm to the best position for picking, and finally pick it. Therefore, accurately obtaining the three-dimensional position information of the target fruit is the main task of the fruit picking robot vision system. The currently known vision systems of fruit-picking robots basically use color cameras as vision devices. A color camera can only obtain the two-dimensional position information and maturity information of the target, but cannot obtain its three-dimensional position information. Without the depth distance, the robot cannot pick. Therefore, for the fruit picking environment where the ...

Claims

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