TAILIEUCHUNG - Robot Manipulators 2011 Part 16

Tham khảo tài liệu 'robot manipulators 2011 part 16', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 516 Robot Manipulators As shown in Fig. 12 the image feature points asymptotically converge to the desired ones. The results confirmed the convergence of the image error to zero under control of the proposed method. Fig. 13 plots the profiles of the estimated parameters which are not convergent to the true values. The sampling time in the experiment is 40ms. Control of One Feature Point with Unknown Camera Parameters and Target Positions The initial and final positions are same as Fig. 10. The control gains are the same as previous experiments. The initial estimated transformation matrix of the base frame respect 0 0 0 -1 0 0 to the vision frame is T 0 1 The initial estimated target position is . 0 0 0 1. x l - t m. The estimated intrinsic parameters are au 1000 av 1000 u0 300 v0 300. The image errors of the feature points on the image plane are demonstrated in Fig. 14. Fig. 15 plots the profiles of the estimated parameters. This experiment showed that it is possible to achieve the convergence without camera parameters and target position information by using the adaptive rule. Figure 14. Position errors of the image feature Dynamic Visual Servoing with an Uncalibrated Eye-in-hand Camera 517 Figure 15. The profile of the estimated parameters Control of Three Feature Points In the third experiment we control three feature points whose coordinates with respect to the end-effector frames are X1 1 m x2 1 z m and x3 1 r m respectively. The initial and desired positions of the feature points are shown in Fig. 16. The image errors of the feature points on the image plane are demonstrated in Fig. 17. The experimental results confirmed that the image errors of the feature points are convergent to zero. The residual image errors are within one pixel. In this experiment we employed three current positions of the feature points in the adaptive rule. The control gains used the experiments are K1 18 B .

TỪ KHÓA LIÊN QUAN
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.