Lighting spherical sun position sensor and automatic tracking method

Abstract

The invention discloses a lighting spherical sun position sensor and an automatic tracking method, which ensure that a panel receiving sunlight always keeps vertical with the sunray. The lighting spherical sun position sensor comprises a non-transparent spherical base body. A plurality of light dependent resistors are respectively distributed on the circumferences of two great circles of the spherical base body, and a base is fixed at one side of the sunlight panel to enable the sunlight panel to rotate with 360 degrees in the horizontal direction and rotate with 90 degrees in the vertical direction under the driving of two direct current motors. The light dependent resistors send sunlight intensity signals to a signal acquisition module, the sunlight intensity signals are processed, and the processed signals are sent to a singlechip control module to determine the position of the sun. A control signal is sent to a PWM (Pulse Width Modulation) speed regulation module to control the actions of the two direct current motors, therefore, the position of the sunlight panel is adjusted. By adopting the invention, the azimuth angle and the elevating angle of the sunlight can be automatically tracked with high precision and short time, the energy consumption for real-time tracking can be reduced with simple structure, and the production and manufacturing cost can be reduced.

Description

technical field [0001] The invention relates to the field of solar energy collecting devices, in particular to a daylighting spherical sun position sensor, which can keep a panel receiving sunlight perpendicular to the sunlight at all times. Background technique [0002] Solar energy has become a widely used clean energy. There are more and more types of products using solar energy. However, many products still use a fixed orientation to collect sunlight. Because the incident angle of sunlight is sometimes large, the utilization rate of solar energy is low. In order to improve the utilization rate of sunlight collection on the collection panel with the same area, it is necessary to automatically track the sunlight so that the sunlight always shines directly on the panel. Since the height and incident angle of sunlight often change throughout the year and every day, the current automatic tracking sunlight system generally uses the action of a worm gear mechanism or a push rod...

AI Technical Summary

Problems solved by technology

Since the height and incident angle of sunlight often change throughout the year and every day, the current automatic tracking sunlight system generally uses the action of a worm gear mechanism or a push rod mechanism to achieve synchronous tracking. The defect is: the collection of sunlight It can only be tracked within a certain range of angles, and cannot be automatically tracked all year round and all-weather, and the system cost is high and the structure is complex. At the same time, the system must be continuously detected, and the motor must be continuously adjusted, resulting in a large loss of energy

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