Abstract:
Provided are a cleaning robot and a method of controlling the same, and more specifically, a cleaning robot provided to detect an obstacle in various directions and a method of controlling the same. The cleaning robot includes a light emitter configured to radiate light, a plurality of light receivers configured to receive a radiation of the light in a predetermined direction among radiations of the light reflected from an obstacle when the radiated light is reflected from the obstacle, a support plate to which the light emitter and the light receiver are fixed and which is rotatably provided, and a controller configured to detect the obstacle on the basis of output signals transmitted from the light emitter and the plurality of light receivers and rotation information of the support plate.
Abstract:
A cleaning robot includes a main body; a plurality of pad assemblies mounted on the bottom of the main body for doing cleaning; a drive assembly for applying drive power for each of the plurality of pad assemblies; and a detection unit for detecting an obstacle. The drive assembly adjusts slopes of the plurality of pad assemblies individually based on the height of the obstacle.
Abstract:
In accordance with one aspect of the present invention, a cleaner includes a gravity compensation apparatus for applying compensation force to a handle unit, the gravity compensation apparatus having an elastic member connected to one side of the handle unit to generate compensation force and a sliding member for making translational movement in conjunction with turning motion of the handle unit to keep the compensation force in a constant direction regardless of an angle of the handle unit. The torque due to gravity applied to a handle unit of a vacuum cleaner may be precisely compensated, thereby relieving the burden of the user from the weight of the handle unit while the user holds the handle unit for cleaning.
Abstract:
A cleaning robot having improved traveling performance and a method of controlling the same. The cleaning robot detects a stuck state such as a ‘jammed state, ‘lifted state’, or ‘object-caught state’ by using a motion instruction or sensor information and quickly escapes from the stuck state caused in various traveling conditions by using a wheel structure capable of changing a total height of the cleaning robot. In addition, a degree of risk and type of the stuck state is predicted before the cleaning robot is in the stuck state so that the cleaning robot may deal with the stuck state in advance. The cleaning robot may escape from the stuck state via rapidly deceleration or quick stopping in accordance with the predicted degree of risk of the stuck state, and the cleaning robot may efficiently deal with the stuck state by using information to select an escaping method suitable for the type of the stuck state.
Abstract:
Provided are a cleaning robot and a method of controlling the same, and more specifically, a cleaning robot provided to detect an obstacle in various directions and a method of controlling the same. The cleaning robot includes a light emitter configured to radiate light, a plurality of light receivers configured to receive a radiation of the light in a predetermined direction among radiations of the light reflected from an obstacle when the radiated light is reflected from the obstacle, a support plate to which the light emitter and the light receiver are fixed and which is rotatably provided, and a controller configured to detect the obstacle on the basis of output signals transmitted from the light emitter and the plurality of light receivers and rotation information of the support plate.
Abstract:
A mobile robot moving to a target position indicated by a user terminal, the mobile robot includes a driver configured to move the mobile robot; a communication interface configured to exchange a wireless signal with each of a first terminal transceiver and a second terminal transceiver included in the user terminal; and a controller configured to control the driver to move to the target position after transmission and reception of the wireless signal with the first terminal transceiver and transmission and reception of the wireless signal with the second terminal transceiver.
Abstract:
An image sensor and an image processing system including the same are provided. The image sensor includes a pixel array including a plurality of pixels each connected to one of first through m-th column lines to output a pixel signal, where “m” is an integer of at least 2; analog-to-digital converters each configured to receive the pixel signal corresponding to one of the first through m-th column lines, to compare the pixel signal with a ramp signal, and to convert the pixel signal to a digital pixel signal; and a blocking circuit connected to an input terminal of at least one of the analog-to-digital converters to block an influence of an operation of others among the analog-to-digital converters.
Abstract:
An image sensor for reducing channel variation and an image processing system including the same. The image sensor includes first to mth pixels (m≧2), each of which is connected to a corresponding column line from among first to mth column lines and is configured to output a respective pixel signal.’ The image sensor further includes first to mth bias circuits, each of which is connected to a corresponding column line from among the first to mth column lines and is configured to fix a voltage of the corresponding column line to a bias voltage when a column line-specific pixel is not selected to output the respective pixel signal. An analog-to-digital converter in the image sensor is configured to convert the pixel signals into digital signals.
Abstract:
A scanner module and an image scanning apparatus employ an illuminator that includes at least one light emitting diode, a light guide to change the direction of the light from the light emitting diode, and a light source holder to which the light emitting diode is mounted, the light source holder being positioned in relation to the light guide such that the light source holder covers an incidence face of the light guide, on which the light from the light source is incident, the surface of light source holder facing the incidence face reflecting light incident thereupon. The reflection of light by the light source holder reduces the possibility of leakage of light, and can enhance luminous intensity of light of the illuminator.
Abstract:
A robot cleaner capable of moving in diverse directions and enhancing cleaning efficiency by increasing frictional force between a pad and a floor includes two or more driving units. Each of the driving units includes plural motors, a first subframe connected to at least any one of the motors and configured to rotate by receiving rotational force from the motor, a rotating plate assembly mounted to the first subframe and configured to be slanted with respect to a floor by rotation of the first subframe and to rotate clockwise or counterclockwise by receiving rotational force from another motor, and a pad provided at the rotating plate assembly and configured to contact the floor. When the rotating plate assembly is slanted with respect to the floor, nonuniform frictional force is generated between the pad and the floor, through which the robot cleaner travels.