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US 8,552,285 B2Granted
Device and method for solar-tracking according to sensor
AssigneeNational Tsing Hua University
InventorsYu-Chee Tseng, Chia-Hung Tsai, Chun-Hsiang Huang
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Abstract
The invention discloses a device and method for solar-tracking according to sensor. The device calculates the angle of incidence and azimuth of the sunray through the illuminance sensed by the sensors in different positions. The device rotates the solar panel to the direction with the maximal solar irradiation. Then the solar panel can sense the maximum illuminance to have the maximal energy gain.
Claims19
A device for solar-tracking, comprising:
- a plurality of sensors, disposed at least three surfaces among a plurality of surfaces wherein the surfaces form a closed space and each of the sensors has a coordinate position and performs a sensing procedure so that a plurality of sensing values corresponding to the sunrays are generated;
- and
- an operation unit, for performing an operation of calculating a center of gravity wherein the operation of calculating a center of gravity uses the coordinate positions and the sensing values to calculate the position of the center of gravity.
A method for solar-tracking, comprising:
- providing a plurality of surfaces forming a closed space wherein the closed space has an inscribed hemisphere;
- disposing a plurality of sensors on at least three tangent points among tangent points formed between the surfaces and the inscribed hemisphere wherein each of the sensors has a coordinate position;
- performing a sensing procedure wherein the sensing procedure is to sense the sunrays to generate a plurality of sensing values corresponding to the sunrays;
- performing an operation of calculating a center of gravity to generate a position of the center of gravity according to the coordinate positions and the sensing values;
- and
- adjusting orientation according to the position of the center of gravity.
3 more elements
Dependencies are inferred from the claim text.