UWB Robotic vacuum cleaner using UWB communication and method for controlling the same

• Main Authors: JUNG JAE YOUNG, OH HEUNG RYONG
• Format: Patent
• Language: English; Korean
• Published: 27.03.2023
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; COFFEE MILLS; CONTROLLING; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; DOMESTIC ARTICLES OR APPLIANCES; DOMESTIC WASHING OR CLEANING; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; FURNITURE; HUMAN NECESSITIES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; REGULATING; SPICE MILLS; SUCTION CLEANERS IN GENERAL; SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES; TESTING; TRANSMISSION

In a control method of a robot cleaner, the control method of a robot cleaner comprises: a step of initiating a homing operation to move the robot cleaner to a charger; a step of detecting a plurality of UWB signals output from a plurality of UWB antennas included in the charger by the UWB antenna of the robot cleaner; a step of identifying location information of the charger and location information of the robot cleaner based on the plurality of UWB signals; and a step of controlling the robot cleaner to move to the charger based on the identified location information of the charger and the identified location information of the robot cleaner. Accordingly, the present invention can perform a homing operation even if the position of the charger changes. 로봇 청소기의 제어 방법에 있어서, 상기 로봇 청소기를 충전기로 이동시키는 호밍(homing) 동작을 개시하는 단계; 상기 로봇 청소기의 UWB 안테나에 의해, 상기 충전기에 포함된 복수의 UWB 안테나로부터 출력된 복수의 UWB 신호를 검출하는 단계; 상기 복수의 UWB 신호에 기초하여, 상기 충전기의 위치 정보 및 상기 로봇 청소기의 위치 정보를 식별하는 단계; 및 상기 식별된 상기 충전기의 위치 정보 및 상기 식별된 로봇 청소기의 위치 정보에 기초하여, 상기 로봇 청소기가 상기 충전기로 이동하도록 제어하는 단계를 포함하는 로봇 청소기 제어 방법이 제공된다.