Author Affiliations
1School of Artificial Intelligence, Wuchang University of Technology, Wuhan 430223, China2School of Electrical and Electronic Engineering, Wuhan Textile University, Wuhan 430200, Chinashow less
Fig. 1. PHANTOM Omnistructure parameter diagram
Fig. 2. Kinematic modeling of the mobile robot
Fig. 3. Basic model of Smith predictor
Fig. 4. Time delay separating system of Smith predictor
Fig. 5. Block diagram of system
Fig. 6. 0.01 s delayed case
Fig. 7. 0.02 s delayed case
Fig. 8. 0.1 s delayed case
Fig. 9. System block diagram of entire system
Fig. 10. GM (1,1) model predictive value
Fig. 11. Force feedback conversion diagram
Fig. 12. Mobile robot
Fig. 13. Experiment environment of mobile robot
Fig. 14. Path trajectory of mobile robot in non-visible environment (curve)
Fig. 15. Distance between obstacle and mobile robot
Fig. 16. Experimental environment of mobile robot(rectangular path)
Fig. 17. Path trajectory of mobile robot in non-visual environment (rectangular)
Fig. 18. Distance between mobile robot and obstacle (rectangular)
Number of joints | Zaxis rotation angle
| Distance between common perpendiculars | Joint offset | Joint torsional | $\theta $![]() ![]() | $d$![]() ![]() | $a$![]() ![]() | $\alpha $![]() ![]() | 1 | $\theta _1^{\rm{*}}$ | ${d_1}$ | 0 | $ - {90^ \circ }$ | 2 | $\theta _2^{\rm{*}}$ | 0 | ${a_2}$ | 0 | 3 | $\theta _3^{\rm{*}}$ | 0 | ${a_3}$ | 0 |
|
Table 1. D-H parameter table of the PHANTOM Omni structure
Parameter | Meaning of parameters | $m$ | Mass of mobile robots(
$5.61 \;\rm kg$)
| $I$ | Moment of inertia of mobile robot(
$0.05 \;\rm kg{n^2}$)
| $2R$ | Distance between two driving wheels(
$0.290\;\rm m$)
| $r$ | Driving wheel radius(
$0.075\;\rm m$)
| $O,X,Y$ | Spatial coordinates | $C,{X_c},{Y_c}$ | Coordinates of the mobile robot | $X,Y$ | Center position of the mobile robot in Cartesian coordinates | $\theta $ | Angle between
$X$ and
${X_c}$ |
|
Table 2. Parameters table of the mobile robot