A wireless communication method with dynamic adding nodes for Underground Search and Rescue robot is proposed： fix the address of the controller, add repeater nodes into the net dynamically, and shift the address of ...A wireless communication method with dynamic adding nodes for Underground Search and Rescue robot is proposed： fix the address of the controller, add repeater nodes into the net dynamically, and shift the address of the mobile terminal. With this method, the Search and Rescue robot can reach the deeper place of a mine to help rescue and keep in touch with the controller through wireless communication in a single channel, even in a complex laneway where radio wave cannot go through the thick wall. The collision in the process of the two-way multi-hop communication in the single channel will also be resolved by the communication direction priority and response signal mechanism, to enhance the reliability of communication. Finally, a sample is designed and an experiment is conducted to verify the efficiency of the method.展开更多
A novel three-limbed robot was described and its motion planning method was discussed.After theintroduction of the robot mechanical structure and the human-robot interface,a two-grade search mecha-nism based motion pl...A novel three-limbed robot was described and its motion planning method was discussed.After theintroduction of the robot mechanical structure and the human-robot interface,a two-grade search mecha-nism based motion planning method was proposed.The first-grade search method using genetic algorithmtries to find an optimized target position and orientation of the three-limbed robot.The second-gradesearch method using virtual compliance tries to avoid the collision between the three-limbed robot and ob-stacles in a dynamic environment.Experiment shows the feasibility of the two-grade search mechanismand proves that the proposed motion planning method can be used to solve the motion planning problem ofthe redundant three-limbed robot without deficiencies of traditional genetic algorithm.展开更多
This paper considers the tracking control problem of a wheeled mobile robot under situation of communication delay and consecutive data packet dropouts in the feedback channel. A tracking controller in discrete-time d...This paper considers the tracking control problem of a wheeled mobile robot under situation of communication delay and consecutive data packet dropouts in the feedback channel. A tracking controller in discrete-time domain for the case of ideal network condition is first derived, and then the networked predictive controller as well as two algorithms for dealing with communication delay and consecutive data packet dropouts are proposed. Simulation and experimental results verify the realizability and effectiveness of the proposed algorithms.展开更多
基金supported by State Key Laboratory of Robotics and System of Harbin Institute of Technology(SKLRS-2009-MS-03)
文摘A wireless communication method with dynamic adding nodes for Underground Search and Rescue robot is proposed： fix the address of the controller, add repeater nodes into the net dynamically, and shift the address of the mobile terminal. With this method, the Search and Rescue robot can reach the deeper place of a mine to help rescue and keep in touch with the controller through wireless communication in a single channel, even in a complex laneway where radio wave cannot go through the thick wall. The collision in the process of the two-way multi-hop communication in the single channel will also be resolved by the communication direction priority and response signal mechanism, to enhance the reliability of communication. Finally, a sample is designed and an experiment is conducted to verify the efficiency of the method.
基金the National High Technology Research and Development Programme of China(No.2006AA04Z245)Program for Changiiang Scholars and Innovative Research Team in University(PCSIRT)(No.IRT0423)
文摘A novel three-limbed robot was described and its motion planning method was discussed.After theintroduction of the robot mechanical structure and the human-robot interface,a two-grade search mecha-nism based motion planning method was proposed.The first-grade search method using genetic algorithmtries to find an optimized target position and orientation of the three-limbed robot.The second-gradesearch method using virtual compliance tries to avoid the collision between the three-limbed robot and ob-stacles in a dynamic environment.Experiment shows the feasibility of the two-grade search mechanismand proves that the proposed motion planning method can be used to solve the motion planning problem ofthe redundant three-limbed robot without deficiencies of traditional genetic algorithm.
基金supported in part by the National Natural Science Foundation of China under Grant Nos.61333033,61690210 and 61690212
文摘This paper considers the tracking control problem of a wheeled mobile robot under situation of communication delay and consecutive data packet dropouts in the feedback channel. A tracking controller in discrete-time domain for the case of ideal network condition is first derived, and then the networked predictive controller as well as two algorithms for dealing with communication delay and consecutive data packet dropouts are proposed. Simulation and experimental results verify the realizability and effectiveness of the proposed algorithms.
