Abstract: A device for adjusting a seat height of a personal mobility includes a hollow seat frame extending in a longitudinal direction, a seat support shaft coupled to an upper portion of the seat frame and configured to slide upward and downward, a pedal shaft coupled to a lower portion of the seat frame, a lifting screw shaft extending downward in a state of being fixed to the seat support shaft inside the seat frame, and a rotation screw shaft fastened to the lifting screw shaft inside the seat frame and configured to raise and lower the lifting screw shaft by rotating based on operation of the pedal shaft.

Abstract: A handle protection device configured for a personal mobility, which is mounted on an upper end portion of a steering shaft may include a handle member disposed with a grip portion at opposite sides of the handle member, includes a first protection member mounted on an external surface of the handle member between the grip portion and the steering shaft, a protection cover configured to enclose and accommodate the grip portion and one or more components provided on the grip portion and including a coupling end portion at a first end portion of the protection cover and detachably coupled to the first protection member and an opening through which a hand of a user enters and exits, and a second protection member fixed to a second end portion of the protection cover opposite to the coupling end portion.

Abstract: An embodiment personal mobility includes a steering bar, a steering rod provided on the steering bar and configured to rotate according to a rotation of the steering bar, a stopper provided on the steering bar and configured to change a rotation radius of the steering rod, a stopper driving device configured to control a rotation of the stopper, and a controller configured to control the stopper driving device such that the steering rod is rotatable in a state in which the personal mobility is rented and to control the stopper driving device such that the steering rod is not rotatable in a state in which the personal mobility is returned.

Abstract: A personal mobility includes a steering shaft, a handlebar extending from an upper end of the steering shaft to opposite sides, two grip parts installed on opposite ends of the handlebar, respectively, to be displaceable with respect to the handlebar in a direction of intersecting a longitudinal direction of the handlebar, and a buffer device provided between each of the grip parts and the handlebar to reduce vibration or shock transmitted from the handlebar to the grip part.

Abstract: An embodiment personal mobility device includes a location receiver configured to receive signals from a plurality of satellites to recognize location information, a communication module configured to perform communication in a different communication method than the location receiver and to communicate with an external communication device and a server, and a controller configured to obtain initial location information based on the signals received by the location receiver and control the initial location information to be transmitted to the server, in response to receipt of communication information by a communication module, cause the communication information to be transmitted to the server, and in response to receipt of corrected storage location information from the server, cause the received corrected storage location information to be stored.

Abstract: An embodiment personal mobility includes a main body including a footrest on an upper surface of the main body, a steering device provided in front of the main body, a front wheel installed at a lower end of the steering device, a rear wheel installed at a rear end of the main body, and a cargo loading unit configured to be unfolded in a lateral direction from opposite sides of the main body to expand a loading region for loading a cargo in an unfolded state and configured to be folded toward the main body in a folded state.

Abstract: A personal mobility includes a steering shaft, a handlebar extending from an upper end of the steering shaft to opposite sides, two grip parts installed on opposite ends of the handlebar, respectively, to be displaceable with respect to the handlebar in a direction of intersecting a longitudinal direction of the handlebar, and a buffer device provided between each of the grip parts and the handlebar to reduce vibration or shock transmitted from the handlebar to the grip part.

Abstract: A personal mobility and a control method thereof may include a main body, a steering shaft rotatably coupled to the main body, a steering limiting device configured to limit rotation of the steering shaft, a posture sensor provided to detect a change in posture of the main body, and a controller configured to selectively generate a control signal to control an operation of the steering limiting device to limit the rotation of the steering shaft when the controller determines that the posture of the main body changes at a speed exceeding a predetermined speed.

Abstract: A handle protection device configured for a personal mobility, which is mounted on an upper end portion of a steering shaft may include a handle member disposed with a grip portion at opposite sides of the handle member, includes a first protection member mounted on an external surface of the handle member between the grip portion and the steering shaft, a protection cover configured to enclose and accommodate the grip portion and one or more components provided on the grip portion and including a coupling end portion at a first end portion of the protection cover and detachably coupled to the first protection member and an opening through which a hand of a user enters and exits, and a second protection member fixed to a second end portion of the protection cover opposite to the coupling end portion.

Abstract: Disclosed are a parking system and a parking control method of a personal mobility. The parking system of the personal mobility includes a first parking stand and a second parking stand having one end rotatably installed at a lower end of a main body of the personal mobility and configured to be rotated downward to be unfolded to opposite sides of the main body or rotated upward to be folded, a parking motor configured to operate the first and second parking stands, and a power transmission device configured to transmit a rotational force of the parking motor to shafts of the first and second parking stands to simultaneously rotate the first and second parking stands in opposite directions.

Abstract: A personal mobility includes first and second test voltage sources, first and second switches, a ground, a first sensor, a second sensor obtaining weight information of a user, and a controller to: based on startup of the personal mobility, measure a first voltage applied to the first switch provided between the first test voltage source and the ground through the first sensor and a second voltage applied to the second switch provided between the second test voltage source and the ground, assign the user to one of predetermined groups based on the weight information, and based on a case in which at least one of the first or second voltage is greater than or equal to a reference value by comparing the first and second voltages with the reference value previously allocated to a group to which the user is assigned among the plurality of predetermined groups, control alarm device to provide a warning alarm to the user.

Abstract: An electric bicycle includes a bicycle body, a pedal shaft rotatably installed on a pedal shaft support of the bicycle body, a driving sprocket rotatably installed on the pedal shaft, and a clutch device configured to connect the pedal shaft and the driving sprocket to enable power transmission or release the connection between the pedal shaft and the driving sprocket.

Abstract: A device for adjusting a seat height of a personal mobility includes a hollow seat frame extending in a longitudinal direction, a seat support shaft coupled to an upper portion of the seat frame and configured to slide upward and downward, a pedal shaft coupled to a lower portion of the seat frame, a lifting screw shaft extending downward in a state of being fixed to the seat support shaft inside the seat frame, and a rotation screw shaft fastened to the lifting screw shaft inside the seat frame and configured to raise and lower the lifting screw shaft by rotating based on operation of the pedal shaft.

Abstract: A parking system for a personal mobility includes at least one parking stand configured to be mounted on the personal mobility and to automatically unfold or fold, a boarding sensor configured to be mounted on the personal mobility and to detect whether the personal mobility is boarded or deboarded, and a controller configured to determine whether the personal mobility is boarded or deboarded based on the detection of the boarding sensor and to control operation of the parking stand so that the parking stand unfolds when the personal mobility is deboarded and the parking stand folds when the personal mobility is boarded.

Abstract: An apparatus for acquiring a differential image includes: an image acquiring unit acquiring a first image including environment light from an image sensor of a camera and infrared polarized light from an illuminating unit and a second image including horizontal polarized light of the environment light; an image correcting unit correcting brightnesses of background areas of the first and second images; and a differential image generating unit generating a differential image between the first and second images of which the brightnesses of the background areas are corrected.

Abstract: A user authentication apparatus and method using movement of a pupil is capable of rapidly and accurately performing authentication with high security by storing the respective frequencies of objects mechanically moving on a screen and security keys corresponding thereto, comparing a frequency detected from movement of a pupil gazing at any object with a frequency of the object, and performing the authentication based on a corresponding security key when the detected frequency is included in a predetermined range.

Abstract: An apparatus for checking a gaze object includes an eye detector configured to detect eyes from a captured image of a user who stares at objects while the objects displayed on a display move at certain frequencies, a frequency converter configured to check a motion of the detected eyes and convert the motion of the eyes into an eye moving frequency, and a discriminating unit configured to compare the eye moving frequency and moving frequencies of the objects and discriminate an object at which the user stares depending upon whether or not the eye moving frequency is identical with the moving frequencies of the objects.

Abstract: A display system includes a line-of-sight tracking camera to detect an eyeball of a driver, first and second stereo cameras, a controlling unit, and a storing unit. The first and second stereo camera photographs a range corresponding to a field-of-view based on stereo camera-based line-of-sight information that is changed based on line-of-sight tracking camera-based line-of-sight information, and provide a photographed image. The controlling unit converts the line-of-sight tracking camera-based line-of-sight information into first and second stereo camera-based line-of-sight information based on pre-stored position and rotation information of the tracking camera and the first and second stereo cameras, and project the converted information onto the first and second stereo cameras, such that a three-dimensional line-of-sight coordinate is calculated.

Abstract: A display control apparatus of a vehicle for controlling a graphical user interface on a screen of a display apparatus which is mounted to a vehicle is provided. The display control apparatus includes a time information detector configured to detect time information for determining the height of the sun. A driving information detector is configured to detect driving information for determining a driving direction of the vehicle. A controller is configured to receive the time information from the time information detector and the driving information detected from the driving information detector so as to reposition a graphical user interface area where the graphical user interface is displayed on the screen. The graphical user interface area may be repositioned so as to escape from a reflection area where sunlight is reflected by the screen.

Abstract: An apparatus and a method that controls gaze tracking. The apparatus includes an imaging device that has an image sensor divided into a plurality of zones and a gaze tracking controller. The gaze tracking controller is configured to determine a lens PSF and an image sensor PSF of the camera, respectively, using images for each zone acquired from image elements disposed in each zone of the image sensor. In addition, the gaze tracking controller is configured to estimate illumination reflection points using an imaging device PSF determined from the determined lens and image sensor PSFs at the time of detecting a user gaze using the imaging device.