公开(公告)号：US20230195126A1

公开(公告)日：2023-06-22

申请号：US18085301

申请日：2022-12-20

Applicant: SEMES CO., LTD.

Inventor： Seung Seok HA ,  In Sung CHOI ,  Seung Jun LEE

IPC: G05D1/02 ,  G06T7/50

CPC classification number: G05D1/0214 ,  G05D1/0246 ,  G05D1/0238 ,  G06T7/50 ,  G05D2201/0216 ,  G06T2207/10028 ,  G06T2207/20024 ,  G06T2207/30261

Abstract: A method of operating a mobile robot for transporting an article in a manufacturing facility, the mobile robot, and an article transport system including the same are proposed. The method of operating the mobile robot includes obtaining a 3-D depth image, extracting, from the 3-D depth image, a region of interest corresponding to a traveling path of the mobile robot on a bottom surface of the manufacturing facility, generating a projected point cloud by projecting an object detected from the region of interest on a reference plane corresponding to the bottom surface, generating an imaginary point cloud filled with voxels in the reference plane, detecting a hole existing in the bottom surface by comparing the imaginary point cloud to the projected point cloud, and travelling while avoiding the hole.

公开(公告)号：US20220388780A1

公开(公告)日：2022-12-08

申请号：US17834137

申请日：2022-06-07

Applicant: SEMES CO., LTD.

Inventor： In Sung CHOI ,  Jun Beom LEE ,  Dong Hoon YANG

IPC: B65G17/20 ,  B65G43/00

Abstract: The present invention provides a transferring unit traveling on a rail provided along a ceiling, the transferring unit including: a body provided with a traveling driver; traveling wheel rotated by receiving power from the traveling driver; a grip member configured to grip an article; a lifting member provided between the body and the grip member and configured to move the grip member in a vertical direction; and a controller, in which the controller lowers or raises the grip member while the transferring unit travels on the rail, in which the controller controls the lifting member and the traveling driver so that the lowering or raising of the grip member is performed in a constant speed section in which the transferring unit travels at a constant speed.

公开(公告)号：US20240077878A1

公开(公告)日：2024-03-07

申请号：US18177957

申请日：2023-03-03

Applicant: SEMES CO., LTD.

Inventor： Seung Jun LEE ,  Seung Seok HA ,  In Sung CHOI ,  Gil Do KIM

IPC: G05D1/02 ,  B65G1/137 ,  H01L21/677

CPC classification number: G05D1/0238 ,  B65G1/1373 ,  H01L21/67724 ,  H01L21/67733

Abstract: The inventive concept provides a transfer robot system. Embodiments of the inventive concept provide a transfer robot system and a transfer robot system driving method in which a bottleneck phenomenon of mobile robots may be prevented, as a new obstacle which does not exist within a map for a mobile robot is recognized in advance during an autonomous driving of the mobile robot and the new obstacle is not passed through. The transfer robot system includes an OHT for transferring an article by autonomously driving along a rail and having a bottom side distance detection sensor installed for generating a distance information of below; and a mobile robot for transferring the article by autonomously driving on the ground and autonomously driving while avoiding an obstacle information generated through the distance information.

公开(公告)号：US20220199441A1

公开(公告)日：2022-06-23

申请号：US17553822

申请日：2021-12-17

Applicant: SEMES CO., LTD.

Inventor： Jun Beom LEE ,  In Sung CHOI

IPC: H01L21/677 ,  B66C13/06 ,  H03H17/06

Abstract: Proposed is a transport vehicle including a traveling unit being moved along a first direction, a slide unit being driven for sliding in a second direction vertical to the first direction, a hand unit ascending and descending by a hoist combined with the slide unit and gripping the goods, and a control unit controlling driving of the traveling unit for traveling or driving of the slide unit for sliding, wherein the control unit applies a filter signal to an initial slide control signal for driving for sliding and controls driving of the hand unit for sliding through a drive control signal for sliding to which the filter signal is applied, and the filter signal includes a plurality of impulse signals and an interval between the impulse signals is determined as a value corresponding to a length of the hoist in linear interpolation on pre-stored period values on a per-hoist-length basis.