TAILIEUCHUNG - Climbing and Walking Robots part 12

Tham khảo tài liệu 'climbing and walking robots part 12', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | In situ self-reconfiguration of hexapod robot OSCAR using biologically inspired approaches 323 Fig. 9. Runtime reconfiguration of a hexapod robot OSCAR from 6 to 3 legs a normal six legged configuration b leg number 3 is malfunctioned and gets amputated c robot performs reconfiguration using the SIRR approach and continues with walking d leg number 1 becomes malfunctioned e leg number 1 gets amputated f robot performs reconfiguration using the SIRR approach and continues with walking g leg number 5 becomes malfunctioned h leg number 5 gets amputated i robot performs reconfiguration using the SIRR approach and continues with walking j - l robot OSCAR continues with its mission despite the loss of 3 legs. We have made an analysis chart representing the ground contacts of legs by normal walking and by walking with leg amputations and robot self-reconfiguration. The results of these analyses can be seen in Fig. 10 Fig. 11. 324 Climbing and Walking Robots Fig. 10. Ground contacts of the robot s feet during normal walking of the hexapod robot Walking with leg amputations - ground contact 3 63 123 183 243 303 363 423 483 543 603 663 723 783 843 903 963 1023 1083 1143 1203 1263 1323 Time slots 5ms Leg 0 Leg 1 V Leg 2 A Leg 3 Leg 4 1 Leg 5 Fig. 11. Ground contacts of the robot s feet by walking of hexapod robot with leg amputations and self-reconfiguration The robot in these experiments is walking with a biologically inspired emergent gait which means that the gait is not hard-wired or by any means predefined. A simple rule is used which allows a leg to swing only if its two neighboring legs are on the ground El Sayed Auf et al. 2006 . By this the gait pattern emerges from the local swing and stance phases of the robot s legs joining the legs boid at the particular robot s side after the reconfiguration has been performed. In Fig. 10 the chart represents the leg ground contacts for normal In situ self-reconfiguration of hexapod robot OSCAR using biologically inspired .

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