Abstract:
The present invention provides: a band which is wound or unwound along a drum; a mast which is linked to the band to enable changing the length of the mast according to the winding and unwinding of the band and is equipped with multiple bodies connected to each other in forms of the telescoping; and an expanding device which is installed on at least one of the bodies and includes a band guide that covers the band in the direction from the inside to the outside of at least one of the multiple bodies and thereby prevents a twist of the band. [Reference numerals] (AA) Operation device (sensor)
Abstract:
PURPOSE: An autonomous return system, an autonomous mobile vehicle including the same, and an autonomous travel method of the autonomous mobile vehicle are provided to switch an absolute position estimation process and a relative position estimation process by setting the number of usable GPS(Global Positioning System) satellites as a judgment standard. CONSTITUTION: A location receiver receives position data of a main body. A satellite tracking part tracks the number of GPS(Global Positioning System) satellites(110). A driving method determination part determines a driving method according to the number of tracked GPS satellites. An operation part based on an absolute location includes an absolute location determination part and a first path setting part. An absolute position of a main body is determined by an absolute position determination part. A first route determination part outputs a return command to a driving control part. A controller(100) manages inputted and outputted information.
Abstract:
PURPOSE: A device for determining the velocity of an autonomous vehicle, an autonomous vehicle having the same and method for determining the velocity of the autonomous vehicle are provided to control the traveling speed of an autonomous vehicle according to the position and time of the movable obstacle. CONSTITUTION: In a device for determining the velocity of an autonomous vehicle, an autonomous vehicle having the same and method for determining the velocity of the autonomous vehicle, a body(110) automatically is movable and has a driving unit and a receiver. An autonomous vehicle(100) comprises a plurality of wheels(111). The autonomous vehicle receives the group of route points form a remote control unit(200). The receiver includes a sensor and a wireless communication device. A steering control apparatus generates a steering command.
Abstract:
PURPOSE: A vertical force estimator of wheel vehicles and a method thereof are provided to predict vertical force on new type wheels by having torque information of wheels and arm rotation angles of wheel vehicles having arm shaped suspension. CONSTITUTION: A vertical force estimation method of wheel vehicles comprises the following steps: (S10) detecting rotation information of arms for a main body; (S11) detecting torque information operated on wheels; (S12) calculating spring torque applied on the arms using torque information of wheels and rotation information of the arms; and (S13) estimating the vertical force acted on the wheels by using information of the detected arms and main body. A vertical force estimator of wheel vehicles comprises a main body which equips an arm driving unit which drives the arms and rotary arms; wheels which are rotatably mounted on the arms; a cylinder which is extended or compressed as relatively moving for an output shaft of the arm driving unit; first and second sensors which respectively detects torque information applied in the rotation information of the arms for the main body and the wheels; and a control unit which estimates vertical force acted on the wheels by using information of calculated arms and the main body and calculating spring torque applied in the arms by using torque information of wheels and rotation information of the detected arms. [Reference numerals] (AA) Start; (BB) End; (S10) Detecting rotation information of arms for a main body; (S11) Detecting torque information operated on wheels; (S12) Calculating spring torque applied on the arms using torque information of wheels and rotation information of the arms; (S13) Estimating the vertical force acted on the wheels by using information of the detected arms and main body
Abstract:
PURPOSE: A wheel apparatus and a vehicle equipped with the wheel apparatus is able to be applied a remote control robot, a self control moving robot, and a compact unmanned robot and driven at high speed in the paved road and driven in the unpaved road with getting over the obstacle. CONSTITUTION: A wheel apparatus comprises a track assembly, a track wheel, and driving wheel(260). The track assemblies are connected with each other and forms a caterpillar(52). The traveling wheel is connected to the track assembly to be rotated and comprises a first diameter. The driving wheel is coupled with the track wheel and comprises a second diameter longer than the first diameter.