公开(公告)号：US20250072318A1

公开(公告)日：2025-03-06

申请号：US18797646

申请日：2024-08-08

Applicant: MAKITA CORPORATION

Inventor： Tatsuya YOSHIKAWA ,  Genki TOYODA

IPC: A01D34/00 ,  A01D101/00 ,  G05D1/244 ,  G05D1/85 ,  G05D105/15 ,  G05D107/20

Abstract: A working robot may include a body, a movement unit, a working unit, a magnetic sensor supported by the body, and a control unit. The control unit may be configured to execute a working operation of causing the working unit to work while causing the movement unit to move the body. The control unit may execute, during the working operation, an operation-suspending process of suspending the working operation when a predetermined operation-suspending condition is satisfied, a first magnetic field searching process of causing the movement unit to move the body straight in a first linear direction by a first distance and assessing whether a wire magnetic field is detected by the magnetic sensor after the operation-suspending process, and an operation-resuming process of resuming the working operation when the wire magnetic field is detected by the magnetic sensor.

公开(公告)号：US20250076885A1

公开(公告)日：2025-03-06

申请号：US18800597

申请日：2024-08-12

Applicant: MAKITA CORPORATION

Inventor： Tatsuya YOSHIKAWA ,  Hirokatsu Yamamoto ,  Masahiro Kojima ,  Genki Toyoda

IPC: G05D1/244 ,  A01D34/00 ,  B60L53/36 ,  G05D1/661 ,  G05D105/15

Abstract: An autonomous movement system may include: a working robot configured to perform an operation while moving autonomously in a working area; a charging station configured to charge the working robot; a boundary wire defining the working area; and a station wire disposed at the charging station and electrically connected to the boundary wire. The working robot may include: a magnetic detecting unit configured to detect a magnetic field generated by the boundary wire and a magnetic field generated by the station wire; and a control unit configured to detect the station wire based on a detection result by the magnetic detecting unit. The charging station may include: a charging terminal configured to be electrically connected to the working robot; and a signal generator configured to supply an identical electric signal to the boundary wire and the station wire.

公开(公告)号：US20250024775A1

公开(公告)日：2025-01-23

申请号：US18758368

申请日：2024-06-28

Applicant: MAKITA CORPORATION

Inventor： Tatsuya YOSHIKAWA ,  Hirokatsu Yamamoto

IPC: A01D34/00 ,  A01D101/00

Abstract: The working robot may include a working mechanism, a movement mechanism, a working motor, a movement motor, a battery configured to supply power to the working motor and the movement motor, a voltage detection unit configured to detect a voltage value of the battery, and a control unit. The control unit may be configured to obtain a detection value detected by the voltage detection unit while a target motor is in operation as a first-step voltage value, and then stop the target motor and obtain a detection value detected by the voltage detection unit while the target motor is not in operation as a second-step voltage value, and then determine whether to return the working robot to a charging station or not based on the first-step voltage value and the second-step voltage value. The target motor may be at least one of the working motor and the movement motor.