Abstract:
A method of navigating an autonomous coverage robot (100,212,302) between bounded areas. A navigation beacon (150,202,203,304) is positioned in a gateway (210) between adjoining first and second bounded areas (204;206). The beacon is configured to transmit a gateway marking emission (208) across the gateway. The coverage robot (100,212,302) is placed within the first bounded area and autonomously traverses the first bounded area (204) in a cleaning mode. Upon encountering the gateway marking emission in the gateway, the robot remains in the first bounded area (204), thereby avoiding migration into the second area (206). Upon termination of the cleaning mode in the first area (204), the robot autonomously initiates a migration mode to move through the gateway (210), past the beacon (150,202,203,304), into the second bounded area (206).
Abstract:
An autonomous coverage robot includes a chassis (102), a drive system (104) to maneuver the robot, an edge cleaning head (106,214,274,316), and a controller (108) configured to monitor motor current associated with the edge cleaning head and to reverse bias the edge cleaning head motor in response to an elevated motor current, while continuing to maneuver the robot across the floor. In another aspect, the autonomous coverage robot includes a bump sensor (132) and a proximity sensor (134). The drive system is configured to reduce a speed setting in response to a signal from the proximity sensor (134) indicating detection of a potential obstacle in a forward direction, while continuing to advance the robot according to a heading setting. Furthermore, the drive system is configured to alter the heading setting in response to a signal received from the bump sensor (132) indicating contact with an obstacle.
Abstract:
A method of navigating an autonomous coverage robot (100,212,302) between bounded areas. A navigation beacon (150,202,203,304) is positioned in a gateway (210) between adjoining first and second bounded areas (204;206). The beacon is configured to transmit a gateway marking emission (208) across the gateway. The coverage robot (100,212,302) is placed within the first bounded area and autonomously traverses the first bounded area (204) in a cleaning mode. Upon encountering the gateway marking emission in the gateway, the robot remains in the first bounded area (204), thereby avoiding migration into the second area (206). Upon termination of the cleaning mode in the first area (204), the robot autonomously initiates a migration mode to move through the gateway (210), past the beacon (150,202,203,304), into the second bounded area (206).
Abstract:
A method of charging a battery of a device (40), the method comprising the steps of: providing a non-charging energy to charging terminals (16) of a charger (10); detecting a presence of a robotic device (40) docked with the charger (10) by recognizing a load formed by a circuit in the charger (10) combined with a complementary circuit in the robotic device (40); and increasing energy to the charging terminals (16) to a charging current to charge the battery.
Abstract:
An autonomous robot includes a chassis (102), a drive system (104) mounted on the chassis (102) and configured to maneuver the robot, a floor proximity sensor (140) carried by the chassis (102) and configured to detect an adjacent floor surface, the sensor (140) comprising a beam emitter (148) configured to direct a beam toward the floor surface, and a beam receiver (150) responsive to a reflection of the directed beam from the floor surface and mounted in a downwardly-directed receptacle (144,146) of the chassis (102), and a beam-transparent cover (152) having a forward (158) and rearward edge (159) disposed across a lower end of the receptacle (144,146) to prohibit accumulation of sediment in the receptacle, the forward edge (158) elevated above the rearward edge (159).
Abstract:
An autonomous coverage robot includes a chassis (102), a drive system (104) to maneuver the robot, an edge cleaning head (106,214,274,316), and a controller (108) configured to monitor motor current associated with the edge cleaning head and to reverse bias the edge cleaning head motor in response to an elevated motor current, while continuing to maneuver the robot across the floor. In another aspect, the autonomous coverage robot includes a bump sensor (132) and a proximity sensor (134). The drive system is configured to reduce a speed setting in response to a signal from the proximity sensor (134) indicating detection of a potential obstacle in a forward direction, while continuing to advance the robot according to a heading setting. Furthermore, the drive system is configured to alter the heading setting in response to a signal received from the bump sensor (132) indicating contact with an obstacle.
Abstract:
A method of docking a robotic device with a base station includes the steps of detesting a low energy level in an on-board battery, orienting the robot in relation to a detected overlap between two infrared beams emitted by the station, detecting contact between the charging terminals on the robot and on the base station, charging the on-board battery and resuming a robot's task, such as vacuuming. Also disclosed are systems for emitting avoidance signals to prevent inadvertent contact between the robot and the base station, and systems for emitting homing signals to allow the robot device to accurately dock with the base station.
Abstract:
An autonomous coverage robot includes a chassis (102), a drive system (104) to maneuver the robot, an edge cleaning head (106,214,274,316), and a controller (108) configured to monitor motor current associated with the edge cleaning head and to reverse bias the edge cleaning head motor in response to an elevated motor current, while continuing to maneuver the robot across the floor. In another aspect, the autonomous coverage robot includes a bump sensor (132) and a proximity sensor (134). The drive system is configured to reduce a speed setting in response to a signal from the proximity sensor (134) indicating detection of a potential obstacle in a forward direction, while continuing to advance the robot according to a heading setting. Furthermore, the drive system is configured to alter the heading setting in response to a signal received from the bump sensor (132) indicating contact with an obstacle.
Abstract:
An autonomous coverage robot includes a chassis (102), a drive system (104) to maneuver the robot, an edge cleaning head (106,214,274,316), and a controller (108) configured to monitor motor current associated with the edge cleaning head and to reverse bias the edge cleaning head motor in response to an elevated motor current, while continuing to maneuver the robot across the floor. In another aspect, the autonomous coverage robot includes a bump sensor (132) and a proximity sensor (134). The drive system is configured to reduce a speed setting in response to a signal from the proximity sensor (134) indicating detection of a potential obstacle in a forward direction, while continuing to advance the robot according to a heading setting. Furthermore, the drive system is configured to alter the heading setting in response to a signal received from the bump sensor (132) indicating contact with an obstacle.