Vehicle Automatic Charging System Guided Electric by 3D Vision and F / T Sensor
2021
In this paper, a new energy vehicle automatic charging system is built on the cooperative robot by using 3D vision and F/T sensor. In particular, aiming at the problem that the attitude error is not taken into account in the peg-in-hole problem of the existing system, this paper proposes a position and attitude adjustment method based on the classification of force and torque information, which divides the contact force and torque obtained by the F/T sensor into nine categories. According to different classification results, different compensation strategies are adopted to adjust the motion control, and finally the charging plug is inserted accurately and flexibly into the charging port. Finally, the random contact data classification experiment and the automatic charging actual insertion experiment are designed. the experimental results show that the accuracy of the classifier is 92.59%, and the success rate of insertion is 94%. With these two experiments, the feasibility of our system is verified from the aspects of precision rate, recall rate, F-Measure and actual insertion success rate of the classifier.
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