基于MSP430单片机的太阳光辐照测量系统设计

本文设计了一种基于MSP430单片机的太阳辐照测量系统。系统以MSP430单片机为硬件核心控制器,采用硅光电池将光照度转换为电流,经过电流-电压转换放大电路,实现微电流转换放大,使用MSP430自带的12位A/D转换器进行处理,并且通过NRF905无线收发模块实现数据无线传输。利用麦夸特(Levenberg-Marquardt)算法对测试数据进行拟合,结果表明,该系统使用灵活、功耗低、电路简洁,LM算法拟合后的数据更接近标准数据,对于合理有效地利用太阳能具有重要的意义。

A solar radiation measurement system based on MSP430 microcontroller is designed in this paper.This system uses the MSP430 microcontroller as the hardware core controller, and uses a silicon photocell to convert the illuminance into current.Through the current-voltage conversion amplifier circuit, the micro current conversion amplification is realized.The internal 12-bit A/D converter of MSP430 is adopted for processing.And through the NRF905 wireless transceiver module to achieve wireless data transmission.Levenberg-Marquardt algorithm is used to fit the test data.The results show that the system is flexible, low power consumption and simple circuit.The data fitted by the LM algorithm is closer to the standard data, which is of great significance for the rational and effective use of solar energy.

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