Abstract:
본 발명의 저해상도 차량용 레이더를 이용한 장애물 너비 추정 방법은 무인차량의 저해상도 레이더가 검출한 장애물의 극좌표계(Polar Coordinate System)데이터가 직각좌표계로 전환되고, 직각좌표계의 x,y 위치로 장애물이 셀(Cell)로 분할되며, 장애물 신호세기 보간기법으로 셀(Cell)중 특정 셀의 보간된 신호세기를 구하고, 보간된 신호세기를 평균잡음전력과 비교하여 장애물 여부가 판단되며, 분할된 셀에 대한 셀 클러스터링(Cell Clustering)이 수행된 후 장애물의 너비가 계산됨으로써 저해상도 레이더(10)에서 획득된 데이터가 촘촘한 격자형상으로 보간되고, 이로부터 인식된 장애물에 대한 너비까지 함께 추정됨으로써 무인차량(1)의 자율주행 성능이 크게 향상되는 특징을 갖는다.
Abstract:
According to an embodiment of the present invention, a method for calculating the SOC of an integrated battery to calculate the SOC of an integrated battery in a system which uses the integrated battery in which unit cells are combined in series or parallel includes: a step of defining a plurality of temperature ranges according to the operating temperature of the system and defining a plurality of current ranges according to the accumulated amount of discharge current in each temperature range to form a data set about temperature range versus current range; a step of measuring the temperature (T) and discharge current (I(t)) of the integrated battery for a unit time period and calculating the used capacity (Ah-used) of the integrated battery using the measured discharge current; a step of getting constant n and K for the Peuker′s equation using the values of the data set corresponding to the measured temperature and discharge current; and a step of calculating the available capacity (Ah_available) using the constant n and K and calculating the SOC.
Abstract:
A long distance target maneuver indoor simulator of the present invention comprises a fast steering mirror module (40) which converts the infrared wavelength of a target generated at a close distance into a light source of long distance infrared wavelength suited to an azimuth and a high-angle direction which a relatively long distance target has, and an optical module (20) which makes a reached IR light source of infrared wavelength into a parallel beam with a narrow optical width and then creates a parallel beam magnified three times. Therefore, the long distance target maneuver indoor simulator enables a tracking performance test of an image tracking device (40) even in a very narrow interior space and, in particular, can calculate quantitative target tracking accuracy by accurately identifying the position of a target in an image using azimuth and a high-angle direction.
Abstract:
PURPOSE: A drive apparatus of a sensor capable of precise stabilization for all directions is provided to guarantee the precise stabilization of a drive unit since the drive unit is driven by three axes. CONSTITUTION: A drive apparatus(200) of a sensor capable of precise stabilization for all directions comprises an outer azimuth angle rolling unit(210), a closing member(220), an inner azimuth angle rolling unit(230), and an elevation angle rolling unit(240). The sensor is installed inside a housing(201). The outer azimuth angle rolling unit is connected to the housing. The outer azimuth angle rolling unit rotates the housing around a principal axis. The closing member is arranged between the outer azimuth angle rolling unit and the housing in order to seal the inside of the housing. The inner azimuth angle rolling unit rotates the sensor around the principal axis in a specific rotation range. The elevation angle rolling unit rotates the sensor around a second axis vertical to the first axis.