A method for detecting the angle of sunlight

Abstract

The invention discloses a sunlight angle detection method, which comprises: a light-shielding shell, a light-transmitting glass one, a light-transmitting glass two, a silicon photocell and a signal processing module. The light-shielding shell is in the shape of an "L", and a light-transmitting glass 1 is arranged in a square area at a right angle to the light-shielding shell, and a light-transmitting glass 2 is arranged on both sides of the light-shielding glass 1, and two pieces of light-transmitting glass 2 are arranged vertically. The appearance of the transparent glass 2 is "convex" in shape, and the cross section of the protruding part is an isosceles trapezoid; the shape of the photosensitive surface of the silicon photovoltaic cell is an isosceles triangle, and the silicon photovoltaic cell is placed in the transparent glass 1. directly under the light glass 2, and is closely attached to its bottom surface; the signal processing module is placed at the bottom of the light-shielding housing. The invention utilizes the structural characteristics of the photoelectric sensor to accurately calculate the azimuth and elevation angles of sunlight.

Description

Technical field: [0001] The invention relates to the field of angle detection, in particular to a sunlight angle detection method. Background technique: [0002] With the continuous improvement of solar energy technology, the development and utilization of solar energy has been closely related to human production and life. The existing solar technology products on the market include solar water heaters, solar street lamps, solar garden lights, etc. The key to solar products is how to improve the tracking accuracy and reliability of sunlight. [0003] The reliability of the current automatic sunlight tracking technology depends on the detection accuracy of the sunlight detection device. The existing automatic tracking technology mainly adopts the comparison control method. When the optical axis is aligned with the sun, the light spot formed by the sunlight irradiating on the silicon photovoltaic cell through the optical system will inevitably shift, resulting in the final vo...

AI Technical Summary

Problems solved by technology

The existing automatic tracking technology mainly adopts the comparative control method. When the optical axis is aligned with the sun, the light spot formed by the sunlight irradiated on the silicon photovoltaic cell through the optical system will inevitably shift, resulting in the final voltage generated by each quadrant cell. In the same way, the automatic tracking is realized by comparing the potential difference in the horizontal and vertical directions with the horizontal and vertical directions. This similar method can only realize automatic tracking through the output signal difference, and cannot accurately calculate the azimuth information of the sun, and the control is reliable. Sex is not high

If you want to improve the measurement accuracy, you can increase the number of silicon photovoltaic panels, which will increase the cost

In addition, due to the structure of the optical system, the detection angle of sunlight will become smaller, making it impossible to accurately determine the exact position of sunlight. The installation accuracy and structural settings of silicon photovoltaic cells may cause malfunctions of the actuator. These factors are Directly affects the detection accuracy of the sunlight sensor

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