Abstract: Disclosed are a method and device for measuring a headcount by using a peak value distribution pattern of a radar reception signal according to the headcount. The method for counting people by using a UWB radar disclosed herein comprises: a step of computing, for each predetermined headcount, an amplitude probability density function based on the distance between a reflection point and a radar, by using a sample radar reception signal for the headcount; a step of calculating likelihood values with respect to the headcounts from a measured radio reception signal by using the probability density function; and a step of determining a headcount corresponding to the largest likelihood value among the calculated likelihood values, as a final headcount with respect to the measured radar reception signal.

Abstract: Disclosed is a method and a device for measuring sleep efficiency by using a radar, the device including: a height recognition unit recognizing a height of a measurement target person by using a signal received from the radar; a movement section extraction unit extracting a movement section of the person during sleep from the received signal, and calculating a length of the extracted movement section and an amount of movement; a normalization unit normalizing the amount of the movement by applying, to the calculated amount of the movement, a ratio between the height of the person and the length of the movement section; a sleep/wakefulness state determination unit determining whether the person is in a wakefulness state or a sleep state; and a sleep efficiency calculation unit calculating the sleep efficiency.

Abstract: Disclosed are a method and a device for adaptively configuring a threshold for object detection by means of radar, the device including: a position-specific maximum signal value extraction unit extracting a maximum value of a signal for each position by obtaining the signal when there is no moving object; a position-specific signal magnitude sorting unit obtaining signals caused by a moving object, and sorting magnitudes of the obtained signals for each position in descending order for a time index; a candidate signal index selection unit selecting a candidate signal index; a signal index determination unit setting weighting factors for the respective signals up to the candidate signal index, and determining a sum of the weighting factors as a signal index; and a position-specific threshold configuring unit configuring the threshold for each position by using a signal of the determined signal index and a scaling factor.

Abstract: Nanorod devices for isolating and characterizing target cellular components are provided. Methods of isolating, detecting, and/or characterizing the components are also provided. Methods of use and treatment are further disclosed, such as treating diseases identified using the nanorods and/or using differentiated stem cells identified using the provided nanorods.

Abstract: Disclosed is a method and a device for measuring sleep efficiency by using a radar, the device including: a height recognition unit recognizing a height of a measurement target person by using a signal received from the radar; a movement section extraction unit extracting a movement section of the person during sleep from the received signal, and calculating a length of the extracted movement section and an amount of movement; a normalization unit normalizing the amount of the movement by applying, to the calculated amount of the movement, a ratio between the height of the person and the length of the movement section; a sleep/wakefulness state determination unit determining whether the person is in a wakefulness state or a sleep state; and a sleep efficiency calculation unit calculating the sleep efficiency.

Abstract: The present invention provides a method and a kit for half coating nanoparticles. According to the present invention, nanoparticles can be half coated in a relatively simple and economical process that can replace complicated processes, such as chemical synthesis, of a conventional Janus nanoparticle-preparing method.

Abstract: Disclosed is an apparatus for detecting fall and rise. The apparatus includes a first sensor unit disposed at a first height and configured to sense a movement of a resident, a second sensor unit disposed at a second height higher than the first height and configured to sense the movement of the resident, and a controller configured to sense a falling behavior and a rising behavior of the resident based on distances from the resident measured by the first sensor unit and the second sensor unit. The controller sets the first sensor unit and the second sensor unit such that, among three axis coordinates of the first sensor unit and the second sensor unit in a 3D orthogonal coordinate system, two axis coordinates thereof coincide with each other.

Abstract: Disclosed are a method and device capable of diagnosing arrhythmia by a contactless method by using a UWB radar. The method for diagnosing arrhythmia using a UWB radar disclosed herein comprises: a step of extracting a radar signal corresponding to a heartbeat component, from radar signals received after being reflected from an examinee; a step of analyzing a frequency component of the radar signal corresponding the heartbeat component; and a step of determining if the examinee has arrhythmia, on the basis of the magnitude of the value of the ratio between the largest peak value and the second largest peak value which are included in the frequency component.

Abstract: A gesture recognition device and method using radar are proposed. The gesture recognition device includes: a signal receiving unit for receiving a radar signal reflected by a gesture of a user; a clutter removing unit for removing clutter from the signal received by the signal receiving unit; and a signal magnitude variance acquiring unit for acquiring the variance of a signal magnitude from a reflection signal from which the clutter has been removed. The proposed device and method have an advantage of enabling a gesture to be recognized with performance that is robust to changes in distance and direction between a user and a radar sensor.

Abstract: The present disclosure provides an emergency determination device. The emergency determination device includes a sensor configured to detect a vital sign of a person and a hand gesture of the person within a predetermined range, and a determiner configured to analyze the vital sign recognized by the sensor, to additionally analyze the hand gesture based on a result obtained by analyzing the vital sign, and to determine whether the emergency occurs, wherein the determiner analyzes the vital sign and determines whether the emergency occurs after the sensor detects a wake-up behavior.

Abstract: Disclosed are a method and device for measuring a headcount by using a peak value distribution pattern of a radar reception signal according to the headcount. The method for counting people by using a UWB radar disclosed herein comprises: a step of computing, for each predetermined headcount, an amplitude probability density function based on the distance between a reflection point and a radar, by using a sample radar reception signal for the headcount; a step of calculating likelihood values with respect to the headcounts from a measured radio reception signal by using the probability density function; and a step of determining a headcount corresponding to the largest likelihood value among the calculated likelihood values, as a final headcount with respect to the measured radar reception signal.

Abstract: The present disclosure provides an emergency determination device. The emergency determination device includes a sensor configured to detect a vital sign of a person and a hand gesture of the person within a predetermined range, and a determiner configured to analyze the vital sign recognized by the sensor, to additionally analyze the hand gesture based on a result obtained by analyzing the vital sign, and to determine whether the emergency occurs, wherein the determiner analyzes the vital sign and determines whether the emergency occurs after the sensor detects a wake-up behavior.

Abstract: A vehicle occupant detection device according to an embodiment of the present invention is provided. The vehicle occupant detection device includes a sensor unit disposed in a vehicle to detect biometric information of an occupant located in a front seat of the vehicle and a rear seat of the vehicle, a control unit analyzing the biometric information measured by the sensor unit, and an output unit outputting a warning message on the basis of the information analyzed by the control unit, wherein the control unit determines that the occupant located in the rear seat is in a dangerous state when the biometric information is not detected in the front seat but detected in the rear seat.

Abstract: A card skimming prevention device according to an embodiment of the present invention is provided. The card skimming prevention device includes a sensor unit detecting a movement of an object inserted into or ejected from a card slot of an automated teller machine and a user who inserts the object, and a control unit determining whether or not a card skimmer is inserted into the card slot on the basis of whether or not the object is ejected after the object is inserted, wherein the sensor unit detects whether the object is inserted into the card slot or ejected from the card slot via a distance from the object.

Abstract: An embodiment of the present invention provides a smart building system. The smart building system includes a sensor unit located in a indoor space to sense the presence of a person in the indoor space and biometric information of the person located in the indoor space, a determination unit determining whether or not the person is located in the indoor space on the basis of the information acquired by the sensor unit, and a controller controlling an indoor controller disposed inside the indoor space on the basis of the information determinate by the determination unit.

Abstract: Disclosed is an apparatus for detecting fall and rise. The apparatus includes a first sensor unit disposed at a specific height of an indoor space and configured to sense a falling behavior of a resident to below the specific height and a rising behavior of the resident to above the specific height, and a controller configured to determine whether or not the resident is in a dangerous state based on whether or not the rising behavior of the resident is sensed within a designated time after sensing the falling behavior of the resident by the first sensor unit.

Abstract: A vehicle occupant detection device according to an embodiment of the present invention is provided. The vehicle occupant detection device includes a sensor unit disposed in a vehicle to detect biometric information of an occupant located in a front seat of the vehicle and a rear seat of the vehicle, a control unit analyzing the biometric information measured by the sensor unit, and an output unit outputting a warning message on the basis of the information analyzed by the control unit, wherein the control unit determines that the occupant located in the rear seat is in a dangerous state when the biometric information is not detected in the front seat but detected in the rear seat.

Abstract: A card skimming prevention device according to an embodiment of the present invention is provided. The card skimming prevention device includes a sensor unit detecting a movement of an object inserted into or ejected from a card slot of an automated teller machine and a user who inserts the object, and a control unit determining whether or not a card skimmer is inserted into the card slot on the basis of whether or not the object is ejected after the object is inserted, wherein the sensor unit detects whether the object is inserted into the card slot or ejected from the card slot via a distance from the object.

Abstract: Disclosed is a moving object detection system and method. The moving object detection system includes an input unit receiving the sensed signals from two or more radar devices, a distance information computation unit computing distance information of the objects from the received signals, a grouping unit randomly selecting one signal to generate multiple signal groups, and generating the signal groups selected among the generated multiple signal groups as one signal group combination, a calculation unit calculating cross-correlation values for all the signal groups in the same signal group combination and adding up the calculated cross-correlation values, a combination selection unit selecting the signal group combination in which a sum of the cross-correlation values is a maximum, and a position computation unit computing a position of each object by matching the signal groups in the selected signal group combination to the objects.

Abstract: Provided is a method and apparatus for measuring a bio-signal using a radar. An apparatus for measuring a bio-signal using a radar according to an embodiment of the present invention comprises: a first signal acquisition unit for acquiring, from a first radar, a first signal including a first bio-signal measured from a measurement subject, a second signal acquisition unit for acquiring, from a second radar, a second signal including both a second bio-signal and the first bio-signal measured from the measurement subject; a signal synchronization unit for synchronizing the first signal and the second signal and a bio-signal detection unit for calculating the difference between the synchronized first and second signals so as to eliminate the first bio-signal and detect the second bio-signal from the second signal.