Sun direction-finding intelligent sensor

Abstract

The invention relates to an intelligent sensor for finding sunlight incident direction, which is provided with a CPU and output in the form of digitalized information, belonging to the technical field of solar energy application and sensor. The sensor consists of 3 parts: a hardware circuit, a software and a shell. The hardware circuit is composed of the CPU, an electric power source circuit, a photoresistance array, a temperature sensor, an input interface module, an encoding module, a communication module and a memory module; the hardware circuits of all parts are connected by a circuit board. The sensor is characterized in that the shell is cylindrical, the lower part thereof is a profile parallel to an axis, a group of round holes distributed in radial direction are arranged on a same fracture surface on the surface of a circular cylinder, axis interval angles of adjacent round holes are the same, the diameters of the round holes are larger than the diameters of the photoresistances, but depths are the same; the hole wall is a scattered light filter composed of black light absorption materials; the photoresistance array is arranged inside the scattered light filter, a light-sensitive surface of the photoresistance array faces outwards. The sun direction-finding intelligent sensor, according to different sensitization conditions of the photoresistance array, figures out the angle between the present incident ray and the working face; the angle and in situ temperature and other information are transmitted outwards in the form of digit via communication circuits. The sensor of the invention can be applied to follow-up control occasions where use ratio of solar energy photo-thermal and photovoltaic equipment can be improved and the cost is low.

Description

1. Technical field [0001] The invention relates to a solar direction finding intelligent sensor, belongs to the field of solar energy application technology and sensor technology, and is applied to a sun tracking device. 2. Background technology [0002] As a clean and non-polluting energy source, solar energy has broad prospects for development. However, it also has problems of low density, intermittent, and changing spatial distribution, which puts forward higher requirements for the collection and utilization of solar energy. In solar thermal utilization, in order to obtain medium and high temperature heat energy, the collector must track the sun from sunrise to sunset; in solar photovoltaic power generation, under the same conditions, the power generation of automatic tracking power generation equipment is 35% higher than that of fixed power generation equipment , the cost is reduced by 25%, so it is necessary to track in solar energy utilization, and the accuracy of the...

AI Technical Summary

Problems solved by technology

Commonly used sensing elements include photocells, photoresistors, photocells, bimetallic strips, etc., which are generally directly connected to the measurement circuit, and there are problems such as inconvenient installation, low precision, and inconsistent standards.

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