Abstract: A tool changing system of a robot manipulator is proposed. The tool changing system includes: a master coupled to an end of the robot manipulator at a first side thereof; and a slave coupled to a tool at a first side thereof and coupled removably to a second side of the master at a second side thereof, wherein the master includes an actuator and a master magnet rotating according to the rotation of the actuator, and the slave includes a slave magnet rotating in synchronization with the rotation of the master magnet by magnetism therebetween with the master and the slave coupled to each other, whereby the rotating force of the slave magnet as a rotating force necessary for operating the tool is transmitted to the tool.

Abstract: A tool changing system of a robot manipulator is proposed. The tool changing system includes: a master coupled to an end of the robot manipulator at a first side thereof; and a slave coupled to a tool at a first side thereof and coupled removably to a second side of the master at a second side thereof, wherein the master includes an actuator and a master magnet rotating according to the rotation of the actuator, and the slave includes a slave magnet rotating in synchronization with the rotation of the master magnet by magnetism therebetween with the master and the slave coupled to each other, whereby the rotating force of the slave magnet as a rotating force necessary for operating the tool is transmitted to the tool.

Abstract: The present invention provides a multi-degree of freedom torque-free linkage unit comprising: a root link; a base link; and a first link spaced from a first joint, and comprises a counterbalancer including a first counterbalancer which enables gravity compensation of the first link, and a curved parallelogram unit comprising: a base part location-fixed and arranged at the root link; a first base part rotatably provided to the base link and the first joint formed by the first link, and connected to the first counterbalancer; and a parallelogram transfer part for connecting the base part and the first base part and forming a reference position for gravity compensation of another link connected to the base link by rotating the first base part on the first joint when the base link moves relatively with respect to the root link.

Abstract: A counterbalancing linkage mechanism includes a base link including a first joint; a second link forming a second joint to be rotatably connected to the base link; and a counter balancer having one portion disposed at the second joint and another portion movably disposed at the base link along a length direction of the second link. The counter balancer compensates a gravitational torque generated due to a weight of the second link when the second link rotates on the second joint. A third link is connected to the second link. The counter balancer comprises a counter balancer delivery portion connected to the second link and rotating by the rotation of the second link. A counter balancer driving portion is in contact with the counter balancer delivery portion, linearly moves by the rotation of the counter balancer delivery portion, and compensates the gravitational torque and a load capacity due to interaction with the counter balancer delivery portion.

Abstract: The present invention provides a safe path planning method including a process of using a grid map and a congestion map, and a process of planning a path of a mobile robot using a cost function.

Abstract: The present invention provides an autonomous mobile-based automated guided vehicle system comprising a system input unit configured to set and input a mobile path between a departure point and an end point of the autonomous mobile-based automated guided vehicle as one or more mobile path blocks in the unit of a block, a system control unit configured to apply a control signal to a corresponding autonomous mobile-based automated guided vehicle based on one or more mobile paths in the unit of a block and a system storage unit configured to store the mobile paths in the unit of a block, which are inputted by a user through the system input unit, and a method for controlling the autonomous mobile-based automated guided vehicle system.

Abstract: The present invention provides a safe path planning method including a process of using a grid map and a congestion map, and a process of planning a path of a mobile robot using a cost function.

Abstract: The present invention provides a torque-free robot arm, comprising: a base unit; and a first link in which one end is rotatably connected to the base unit to form a first joint as a rotary shaft horizontal to the ground and the center of gravity is separated from the first joint, wherein the first link includes one end arranged at the first joint, the other end arranged along the longitudinal direction of the first link, and a first counter balancer for compensating the gravity of the first link when the first link is rotated around the first joint.

Abstract: The present invention provides an autonomous mobile-based automated guided vehicle system comprising a system input unit configured to set and input a mobile path between a departure point and an end point of the autonomous mobile-based automated guided vehicle as one or more mobile path blocks in the unit of a block, a system control unit configured to apply a control signal to a corresponding autonomous mobile-based automated guided vehicle based on one or more mobile paths in the unit of a block and a system storage unit configured to store the mobile paths in the unit of a block, which are inputted by a user through the system input unit, and a method for controlling the autonomous mobile-based automated guided vehicle system.

Abstract: The present invention provides a multi-degree of freedom torque-free linkage unit comprising: a root link; a base link; and a first link spaced from a first joint, and comprises a counterbalancer including a first counterbalancer which enables gravity compensation of the first link, and a curved parallelogram unit comprising: a base part location-fixed and arranged at the root link; a first base part rotatably provided to the base link and the first joint formed by the first link, and connected to the first counterbalancer; and a parallelogram transfer part for connecting the base part and the first base part and forming a reference position for gravity compensation of another link connected to the base link by rotating the first base part on the first joint when the base link moves relatively with respect to the root link.

Abstract: A counterbalancing linkage mechanism includes a base link including a first joint; a second link forming a second joint to be rotatably connected to the base link; and a counter balancer having one portion disposed at the second joint and another portion movably disposed at the base link along a length direction of the second link. The counter balancer compensates a gravitational torque generated due to a weight of the second link when the second link rotates on the second joint. A third link is connected to the second link. The counter balancer comprises a counter balancer delivery portion connected to the second link and rotating by the rotation of the second link. A counter balancer driving portion is in contact with the counter balancer delivery portion, linearly moves by the rotation of the counter balancer delivery portion, and compensates the gravitational torque and a load capacity due to interaction with the counter balancer delivery portion.

Abstract: The present invention provides a method for recognizing a position of a mobile robot by using arbitrarily shaped ceiling features on a ceiling, comprising: a providing step of providing a mobile robot device for recognizing a position by using arbitrarily shaped ceiling features on a ceiling which includes an image input unit, an encoder sensing unit, a computation unit, a control unit, a storage unit, and a driving unit; a feature extraction step of extracting features which include an arbitrarily shaped ceiling feature from an outline extracted from image information inputted through the image input unit; and a localization step of recognizing a position of the mobile robot device by using the extracted features, wherein, in the feature extraction step, a descriptor indicating the characteristics of the arbitrarily shaped ceiling feature is assigned.

Abstract: The present invention provides a method for recognizing a position of a mobile robot by using arbitrarily shaped ceiling features on a ceiling, comprising: a providing step of providing a mobile robot device for recognizing a position by using arbitrarily shaped ceiling features on a ceiling which includes an image input unit, an encoder sensing unit, a computation unit, a control unit, a storage unit, and a driving unit; a feature extraction step of extracting features which include an arbitrarily shaped ceiling feature from an outline extracted from image information inputted through the image input unit; and a localization step of recognizing a position of the mobile robot device by using the extracted features, wherein, in the feature extraction step, a descriptor indicating the characteristics of the arbitrarily shaped ceiling feature is assigned.

Abstract: The present invention provides a torque-free robot arm, comprising: a base unit; and a first link in which one end is rotatably connected to the base unit to form a first joint as a rotary shaft horizontal to the ground and the center of gravity is separated from the first joint, wherein the first link includes one end arranged at the first joint, the other end arranged along the longitudinal direction of the first link, and a first counter balancer for compensating the gravity of the first link when the first link is rotated around the first joint.

Abstract: The present invention provides a safety unit comprising: a case; a rotary linkage disposed at one end thereof at the outside of the case and rotatably mounted at the other end thereof to the case; a force transfer shaft mounted to one side of the rotary linkage in such a fashion as to be oriented perpendicular to the rotating plane of the rotary linkage; a crank linkage rotatably mounted at one end thereof to the inner side of the case and adapted to abut against the force transfer shaft at the outer circumferential edge thereof so as to be transferred with an external force to be rotatably moved; and a support means rotatably connected to the other end of the crank linkage and adapted to allow for the rotation of the crank linkage when an external force having a value larger than a predetermined threshold value is exerted to the rotary linkage.

Abstract: The present invention provides a safety unit comprising: a case; a rotary linkage disposed at one end thereof at the outside of the case and rotatably mounted at the other end thereof to the case; a force transfer shaft mounted to one side of the rotary linkage in such a fashion as to be oriented perpendicular to the rotating plane of the rotary linkage; a crank linkage rotatably mounted at one end thereof to the inner side of the case and adapted to abut against the force transfer shaft at the outer circumferential edge thereof so as to be transferred with an external force to be rotatably moved; and a support means rotatably connected to the other end of the crank linkage and adapted to allow for the rotation of the crank linkage when an external force having a value larger than a predetermined threshold value is exerted to the rotary linkage.