Abstract: An electric compressor of an air conditioning system and a control method thereof. In one method, a stable operation of the electric compressor is ensured by means of logic to protect an inverter unit provided in the electric compressor before an inverter element is damaged due to overheating, so that safety can be secured.

Abstract: A method and apparatus for providing information are disclosed. An information providing apparatus includes an output unit configured to output information and a control unit configured to generate first information and second information according to an output mode that is any one mode of a normal mode, a safe mode, or an emotional mode. The output unit controls the first information to be output to a user through the output unit and controls the second information to be output to an outside of the information providing apparatus.

Abstract: An apparatus for managing a shared personal mobility (PM) vehicle comprises a battery unit configured to supply power, a communication unit configured to communicate with a server and road side units, and a control unit configured to determine whether to manage a PM vehicle based on at least one of a position, a position change, and a battery charge amount of the PM vehicle and transmit a management notification message to the server.

Abstract: A method, implemented by a computer, for determining a position of a personal mobility device (PMD) comprises: estimating a position of a PMD based on a first wireless signal; determining whether the PMD is within an intermediate area between a first area and a second area, based on an estimated position of the PMD; determining whether the PMD moves to the second area, by using both the first wireless signal and a second wireless signal; and determining position of the PMD by using any one of the first wireless signal and the second wireless signal based on a movement of the PMD to the second area.

Abstract: A method of operating an apparatus for predicting and redistributing a personal mobility vehicle (PM vehicle) demand for shared PM vehicles includes generating demand information for the PM vehicles for a plurality of areas according to time, generating current distribution information for the PM vehicles positioned in the plurality of areas, generating target distribution information based on the demand information and the current distribution information, and redistributing the PM vehicles according to the target distribution information.

Abstract: A device and method for positioning personal mobility vehicle are disclosed. The positioning method is implemented by a computer and comprises receiving messages from a plurality of auxiliary road side units, obtaining distances between a Personal Mobility (PM) vehicle and the plurality of auxiliary road side units based on the messages, estimating a candidate position of the PM vehicle based on the distances between the PM vehicle and the plurality of auxiliary road side units, receiving correction data from a reference road side unit, correcting the candidate position based on the correction data, and determining the corrected candidate position as a final position of the PM vehicle.

Abstract: A personal mobility device (PMD) has a footboard unit including a footboard, a front wheel disposed on the footboard, and a rear wheel disposed behind the front wheel on the footboard. The PMD also has a steering unit including a steering axle, a fixation unit that connects one end of the steering axle to the footboard unit, and a grip disposed on the other end of the steering axle. The PMD also has a side guard disposed on each side of the footboard unit and extending along an axial direction of the footboard.

Abstract: An elevator control method is implemented by a computer and comprises: receiving a board request from a board-standby robot; determining a priority of the board-standby robot based on information relating to the board-standby robot and operation information of the elevator; and controlling operation of an elevator car based on the priority of board-standby robots and the priority of on-board robots within the elevator car.

Abstract: A method and an apparatus for controlling personal mobility device (PMD) depending on congestion includes identifying a target area according to an expected route of the PMD, acquiring a degree of congestion of the target area based on at least one of a type of objects, a movement of the objects, a distance between objects, the number of objects that is expected, and a speed limit of the target area, and controlling speed of the PMD according to the degree of congestion.

Abstract: A method, implemented by a computer, for positioning based on heterogeneous networks comprises: estimating a position of a personal mobility device (PMD) based on a first wireless signal; determining whether the PMD is within an intermediate area between a first area and a second area, based on an estimated position of the PMD; determining whether the PMD moves to the second area, by using both the first wireless signal and a second wireless signal; and determining position of the PMD by using any one of the first wireless signal and the second wireless signal based on a movement of the PMD to the second area.

Abstract: Disclosed are an apparatus and a system for managing circadian rhythm. The apparatus includes an illuminance measuring portion which measures a bio illuminance value of external light using a circadian lambda filter which passes the external light along according to a circadian rhythm sensitivity curve and a visual lambda filter which passes the external light along according to a visual sensitivity curve, a controller which outputs a control signal for reinforcing a user's circadian rhythm on the basis of the bio illuminance value, and a circadian rhythm reinforcing portion which emits light of a circadian wavelength band toward the user according to the control signal.

Abstract: An apparatus for managing a shared personal mobility (PM) vehicle comprises a battery unit configured to supply power, a communication unit configured to communicate with a server and road side units, and a control unit configured to determine whether to manage a PM vehicle based on at least one of a position, a position change, and a battery charge amount of the PM vehicle and transmit a management notification message to the server.

Abstract: Method and apparatus for providing traffic information to personal mobility (PM) vehicle are provided. A computer implemented method includes receiving, from a PM vehicle, at least one of Received Signal Strength Indicators (RSSIs) or Time-of-Flight (ToF) values of vehicle-to-everything messages (V2X messages) generated from roadside units (RSUs) and received by the PM vehicle, and receiving identification information and transmission time points included in the V2X messages. A position and a prediction route of the PM vehicle are deduced based on at least one of the RSSIs or the ToF values, the identification information, and the transmission time points. Then, one or more essential traffic lights among a plurality of traffic lights are determined according to the position and the prediction route of the PM vehicle and identification information of the one or more essential traffic lights is transmitted to the PM vehicle.

Abstract: A method and apparatus for providing information are disclosed. An information providing apparatus includes an output unit configured to output information and a control unit configured to generate first information and second information according to an output mode that is any one mode of a normal mode, a safe mode, or an emotional mode. The output unit controls the first information to be output to a user through the output unit and controls the second information to be output to an outside of the information providing apparatus.

Abstract: A method and apparatus for providing multi-modal service using a personal mobility vehicle are disclosed. The method of operating an apparatus for providing a multi-modal service using a personal mobility vehicle includes: receiving a departure point and a destination from a user terminal; searching for positions of available PM vehicles between the departure point and the destination; generating a route between the departure point and the destination based on the positions of the PM vehicles; and providing the route and the positions of the PM vehicles to the user terminal.

Abstract: A method of operating an apparatus for predicting and redistributing a personal mobility vehicle (PM vehicle) demand for shared PM vehicles includes generating demand information for the PM vehicles for a plurality of areas according to time, generating current distribution information for the PM vehicles positioned in the plurality of areas, generating target distribution information based on the demand information and the current distribution information, and redistributing the PM vehicles according to the target distribution information.

Abstract: A device and method for positioning personal mobility vehicle are disclosed. The positioning method is implemented by a computer and comprises receiving messages from a plurality of auxiliary road side units, obtaining distances between a Personal Mobility (PM) vehicle and the plurality of auxiliary road side units based on the messages, estimating a candidate position of the PM vehicle based on the distances between the PM vehicle and the plurality of auxiliary road side units, receiving correction data from a reference road side unit, correcting the candidate position based on the correction data, and determining the corrected candidate position as a final position of the PM vehicle.

Abstract: Disclosed are an apparatus and a system for managing circadian rhythm. The apparatus includes an illuminance measuring portion which measures a bio illuminance value of external light using a circadian lambda filter which passes the external light along according to a circadian rhythm sensitivity curve and a visual lambda filter which passes the external light along according to a visual sensitivity curve, a controller which outputs a control signal for reinforcing a user's circadian rhythm on the basis of the bio illuminance value, and a circadian rhythm reinforcing portion which emits light of a circadian wavelength band toward the user according to the control signal.