| Sakai, T., and Cho, K. 1988. Operation System for Hydraulic Excavator for Deep Trench Works. In Proc. 5th International Symposium on Robotics in Construction. Tokyo. |
....1990) or excavation around buried utilities. A higher level of autonomy is achieved by systems that share control of the excavation cycle with a human operator. Typically, these systems (Bradley et al. 1993; Bullock and Oppenheim, 1989; Huang and Bernold, 1994; Lever et al. 1994; Rocke, 1994; Sakai and Cho, 1988; Salcudean et al. 1997; Sameshima and Tozawa, 1992; Seward et al. 1992) concentrate on the process of digging. An operator chooses the starting location for the excavator s bucket and a control system takes over the process of filling the bucket using force and or joint po sition feedback to ....
Sakai, T., and Cho, K. 1988. Operation System for Hydraulic Excavator for Deep Trench Works. In Proc. 5th International Symposium on Robotics in Construction. Tokyo.
....has ported their development to a commercial mini excavator. Additionally, they are investigating safety sensors that can detect the presence of humans in the vicinity of the excavator using a scanning laser [Seward 96] Sakai and Cho have simulated excavation using a finite state machine [Sakai 88] They show how cylinder pressure and bucket velocity can be used to determine the phase in the digging cycle of the backhoe. A few rules are used to trigger moving from one state to another and, in effect, cause changes in the trajectory of the excavator bucket. Lever et al. at the University of ....
Sakai, T. and Cho, K., Operation System for Hydraulic Excavator for Deep Trench Works. In Proc. 5th International Symposium on Robotics in Construction. Tokyo, 1988.
....dig the bottoms of trenches with minimal assistance. Some researchers have investigated the execution of previously planned trajectories for an automated excavating robot [12] 13] 14] and others have sought to develop gross plans for digging [15] 16] 17] A few systems have shown greater autonomy [18][19] 20] Yoshinada and Otsubo report a bucket loader that has been programmed to load various kinds of materials from a pile into a conveyor system. Whittaker et al. have demonstrated a novel excavation scheme that used a high pressure air knife to automatically uncover buried pipes without ....
Sakai, T., Cho, K., "Operation System for Hydraulic Excavator for Deep Trench Works," In Proc. of the 5th International Symposium on Robotics in Construction, Tokyo, June 1988.
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Sakai, T. and Cho, K. Operation System for Hydraulic Excavator for Deep Trench Works. Proceedings 5th International Symposium on Robotics in Construction. Tokyo, 1988.
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