Abstract:
PURPOSE: A sunlight tracking sensor and a device for condensing sunlight using the same are provided to perform back tracing by removing a motion error which is caused by the generation of a shadow on the bottom and reverse position sensing for the sun. CONSTITUTION: A sunlight tracking sensor(100) comprises a supporting part(110), a ray tracing sensing part(120), and an optical inducing part(130). The supporting part is made of a light transmitting or transparent material and is equipped with ray tracing sensing part for combining the sunlight tracking sensor with a solar cell module and subsequently operating. The ray tracing sensing part comprises a control PCB plate(121), a vertical PCB plate(122), left and right photodiodes, and a bottom photodiode. The control PCE plate is mounted in the supporting part. The vertical PCB plate is integrated by being vertical on the top surface of the control PCB plate. The left and right photodiodes are separately mounted in the left and right side of the vertical PCB plate in order to sense the direction of the sunlight. The bottom photodiode is mounted on the bottom surface of the control PCB plate in order to sense the reverse position of the sunlight. The optical inducing part is combined to the supporting part for covering the ray tracing sensing part; is composed of a roof shape with a slope in order to induce the sunlight towards the left and right photodiode; and is made of a light transmitting or transparent material.
Abstract:
PURPOSE: An apparatus for measuring a solar altitude is provided to maximize learning effects about solar energy and allow children to easily measure the solar altitude and azimuth. CONSTITUTION: An apparatus(100) for measuring a solar altitude includes a support plate(110), a support stand(120), a rotary shaft, a solar module(140), and an angle measuring unit(150). The support stands are installed on both upper sides of the support plate, respectively. The rotary shaft is installed between the support stands. The solar module is connected to the rotary shaft. The angle measuring unit measures the rotary angle of the solar module. The angle measuring unit, a first protractor, and a second protractor rotationally installed between the first protractor and the solar module. A micro screw(131) and a tangent screw are connected to each other at both ends of the rotary shaft. The apparatus comprises a lower support stand that the support plate is rotationally inserted. A compass is installed on the lower support stand or the support plate.
Abstract:
An apparatus and a method for making the illumination of a light source uniform in a digital image test member, and an apparatus and a method for testing a color of a digital image are provided to realize various artificial light sources which are usable from a low illumination environment to a high illumination environment. A polygonal rotation plate(200) is installed in a closed space, and rotated at a predetermined angle. A plurality of light sources(210) is mounted on respective surfaces of the polygonal rotation plate. The light sources(210) apply lights to an image test member(220) to test a digital image, wherein the image test member(220) is attached on one surface of the closed space. A plurality of illumination measuring members respectively measures the illumination values of lights, which are applied to the image test member(220). A rotation plate controller(260) rotates the polygonal rotation plate(200) to make the measured illumination values uniform.
Abstract:
The present invention relates to a device for sensing the solar position using a thermoelectric element without separate driving power and a method for sensing the solar position by using the device. The device for sensing the solar position using a thermoelectric element according to the present invention includes: a solar sensor unit in which two or more thermoelectric elements are arranged in a polygonal shape to face different directions and to generate voltage information for different voltage values generated in each thermoelectric element according to incident solar light; and a control unit to estimate relative position of the sun based on the received voltage information.
Abstract:
PURPOSE: A rain sensor using the difference of multi-directional lights and a method for detecting moisture on the surface of a windshield using the same are provided to accurately grasp the surface condition of the windshield by using the quantity variation of the light received from multiple directions, thereby improving the control reliability of a wiper. CONSTITUTION: A rain sensor using the difference of multi-directional lights comprises multiple light emitting parts(110,120), a light receiving part(130), and a control part(140). The light emitting parts are installed to radiate the light to a windshield. The light receiving part receives the light reflected from the interface of the windshield. The control part receives electrical signals from the light receiving part; calculates the quantity variation of the light successively received from each light emitting part to the light receiving part; and calculates at least one of instantaneous absolute variation and accumulated variation on the light quantity differences. [Reference numerals] (140) Control part;
Abstract:
PURPOSE: A solar reflection apparatus with a solar tracking sensor is provided to stably emit solar rays to the desired spot at a low cost. CONSTITUTION: A solar reflection apparatus with a solar tracking sensor comprises a support shaft(10), first and second shafts(30,50), a second gear box unit(40), and an optical sensor unit(70). The support shaft is fixed on the ground. One end of the first shat faces a target spot, and connected to the support shaft. The second shaft is vertically formed to the first shaft, and rotationally installed on one end of the first shaft. The second gear box unit is rotated by interlocking with the second shaft. The optical sensor unit is installed in the second gear box unit, and faces the sun. The 1/ 2 point of the angle between one end of the optical sensor unit and first shaft is vertical to a reflecting plane of a reflector(60). [Reference numerals] (AA) Sun position; (BB) Target position
Abstract:
PURPOSE: An integrated motion detection apparatus is provided to improve estimation accuracy and stability about the position and posture of an object. CONSTITUTION: An integrated motion detection apparatus(100) comprises a first motion detection part(110), a second motion detection part(120), and a motion estimation part(130). The first motion detection part calculates the first motion information of objects based on the intensity of an infrared ray which is measured by using one or more optical sensors. The second motion detection part calculates the second motion information of the objects based on inertia information which is measured by using one or more inertia sensors. The motion estimation part calculates the third motion information of the objects based on the intensity of the infrared ray, the first motion information, the inertia information or the second motion information.
Abstract:
PURPOSE: A system for tracking sunlight to use solar sensor and a method for sunlight tracking using the same are provided to supply the location of the sun by using a tracking sensor. CONSTITUTION: A system for tracking sunlight to use solar sensor comprises a sunlight tracking sensor(200), a solar tracking device(100) and a solar energy collecting part(300). The sunlight tracking sensor estimates the location of the sun by detecting sunlight. The solar tracking device has a reflecting surface(120) receiving the directional lighting of the sun. The solar tracking device receives the location of the sun estimated by the sunlight tracking sensor. The solar tracking device is based on the location of the sun. The solar energy collecting part comprises a feedback sensor(320). The feedback sensor revises the location of the sun.