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Article Type: Patent abstracts From: Sensor Review, Volume 32, Issue 2
Title: Precise sun tracking sensor module of high-efficiency light-harvesting solar power generating systemPublication number: CN 201656838 (U)Publication date: November 24, 2010Applicant(s): ODTech Semiconductor Nanjing Co. Ltd
Abstract: The utility model relates to a precise sun tracking sensor module of a high-efficiency light-harvesting solar power generating system, which is used for realizing the first tracking and the second tracking for the sunlight, can precisely track the sunlight, lowers the manufacturing cost and improves the constructability. The precise sun tracking sensor module consists of a base plate, a transparent cover, a lens part, a sunlight focus perception part and at least three light sensor parts, wherein the transparent cover is covered on the base plate; the lens part is arranged at the center of the top of the transparent cover; the sunlight focus perception part is arranged at the center of the surface of the base plate and under the lens part; the light sensor parts are arranged at the periphery of the sunlight focus perception part; the lens part is used for collecting the center sunlight; the sunlight focus perception part is used for collecting sunlight focus positions by the lens part; and the light sensor parts are used for sensing the sunlight shading values in all directions.
Title: Floating solar power generating system using geomagnetic sensor and controlling method thereofPublication number: KR 100999934 (B1)Publication date: December 9, 2010Applicant(s): Korea Scada Co. Ltd (KR)
Abstract: Purpose: A solar power generation system on the water and a method for controlling the same are provided to improve the generation efficiency of a system by measuring the current azimuth of the system using the terrestrial magnetism sensor. Constitution: A floating frame is composed of a floating body and is floated on the water by the buoyancy. A panel array regulates the tilted angle of a solar cell panel according to the dinurnal motion of the sun using a tilting unit. A sail regulates the direction of the floating frame based on the speed of wind. A screw unit controls the direction of the floating frame. A controlling unit controls the sail and the screw unit.
Title: Sensor device and solar power generatorPublication number: JP 2010230604 (A)Publication date: October 14, 2010Applicant(s): Mizuho Information & Res. Inst.
Abstract: Problem to be solved: To provide a sensor device and a solar power generator allowing a solar battery panel to accurately track a movement of the sun and efficiently generate power. Solution: The solar power generator includes the solar battery panel constituted of a plurality of solar battery modules, and a control device. The sensor device is installed in the center of this solar battery panel. A control section of the control device processes an acquisition of an electromotive force of each sensor in tracking control processing and determines whether a measurement value of a central sensor is the highest value. If the measurement value of the central sensor is not the highest value, the control section uses each drive section to change a panel direction. If the measurement value of the central sensor is the highest value, the control section periodically repeats the tracking control processing.
Title: Singlechip based solar cell automatic tracking device and control method thereofPublication number: CN 101969280 (A)Publication date: February 9, 2011Applicant(s): Univ. Jiangsu
Abstract: The invention relates to a singlechip based solar cell automatic tracking device which belongs to the field of optical, mechanic and electric integrated automatic control. In the invention, a sun position detection device and a double-axis mechanical tracking and positioning device are designed, and a control circuit is used for carrying out operation amplification and A/D processing on a sun position signal detected by a sensor and then transmitting the signal to a singlechip; the singlechip is used for sending out a pulse command and a direction command to control the running speed and the direction of a motor to track the sun in real time; meanwhile, the running speed and the direction of a tracker are adjusted in time according to a feedback signal of a photosensor, and a component is controlled through the feedback signal to decide when to brake the tracking device. The whole device adopts a method of combining stepwise tracking with sequential tracking. By adopting the method, the tracking error of the whole device is within the range of ±5 degrees, and compared with continuous tracking and detection, the energy is saved.