Research Based On Avr Single Chip Microcomputer Of Sunlight Irradiation And Measuring Devices

Energy is the basis of human survival, as the current energy crisis worsens,the solar energy as inexhaustible and renewable clean energy has been paidmore and more attention. In the solar energy utilization way, whether it is solarthermal power generation and photovoltaic power generation, solar radiationmeasurement has become the key part of power station planning and siteselection, system monitoring and evaluating the efficiency of assembly. In thephotovoltaic utilization and optical field, at present, the traditional way tomeasuring solar radiation needs radiometer and spectrophotometer. Due tocomplicated technology and high cost, solar radiation is not suitable for using inphotovoltaic and solar thermal power generation; spectrophotometer is feasibleto use to determine the sun light irradiation power rough although under certainconditions, for example in sunny bright day conditions, but it is not precise forthe instrument application.Therefore, it is very necessary to design a set of equipment of solar lightirradiation in the field of solar energy utilization. This paper studies the basicprinciple of solar radiation energy measurement, proposed a method of neuralnetwork to fit the measured data, given the feasible scheme of designing thesolar radiation energy measurement device.The devices based on AVR microcontroller as the core hardware circuitdesign. The main work of this dissertation are:(1)Completed the design ofphotoelectric conversion and a pre-amplifier circuit.(2) Completed the design ofA/D conversion module.(3)Completed the module design of liquid crystaldisplay, using HJ1602A liquid crystal display module, the measurement resultswill be displayed in real time.(4) The design of communication circuit, the useof serial communication protocol of real-time measuring data remotetransmission.(5)The module program, ensure the normal and orderly operation.(6) Completed the data fitting between A/D voltage and standard data usingneural network.The solar radiation energy measurement device has realized the basicfunctions through the experimental test, achieved the design requirements.