基于太阳高度角的光量子通量密度快速检测装置设计  

Design of Fast Detection Device for Optical Quantum Flux Density Based on Solar Altitude

作　　者：郝剑峰 冀杰[2] Hao Jianfeng;Ji Jie(China Automotive Institute Intelligent Network Technology Co.,Ltd,Chongqing 401120;Southwest University,Chongqing 400715)

机构地区：[1]中汽院智能网联科技有限公司,重庆401120 [2]西南大学,重庆400715

出　　处：《中国农机装备》2024年第9期16-21,共6页China Agricultural Machinery Equipment

基　　金：重庆市科学技术局农业农村领域重点研发项目(cstc2021jscx-gksbX0003)。

摘　　要：光量子通量密度是农业生产中关键的光环境参数。设计一种光量子通量密度快速检测设备,对温室蔬菜、水果进行合理、精确补光,将有助于提升植物的生长发育和作物的产量与品质。该检测设备以STC90单片机为核心,搭载DAVIS 6450传感器、PCF8591模数转换器以及DS1302芯片,实现对各波段光量子通量密度的检测。首先,利用地物光谱仪OFS-1100对各光波段占太阳光的比例进行检测,并利用数据拟合方法得到任意太阳高度下的准确比例数据。然后,通过DS1302芯片获取时间,计算出太阳高度角,并通过传感器DAVIS 6450经模数转换得到太阳光能量。将得到的比例、能量数据代入公式获得各波段的光量子通量密度,为温室蔬菜、水果的合理、精确补光提供理论基础。Optical quantum flux density is a key optical environment parameter in agriculture,a fast detection device for optical quantum flux density was designed to make up the light reasonably and accurately for greenhouse vegetables and fruits,which will help to improve the growth and development of plants and the yield and quality of crops.The designed device was based on the STC90 micro-controller,equipped with DAVIS 6450 sensor,PCF8591 analog-to-digital converter and DS1302 chip,which realized the detection of optical quantum flux density in each waveband.Firstly,the OFS-1100 spectrometer was used to detect the proportion of sunlight in each band,and the accurate proportional data at any solar alti-tude was obtained by using the data fitting method.Then,the DS1302 chip acquired the time,calculates the solar altitude angle,and converted the sunlight energy through analog-to-digital conversion by the sensor DAVIS 6450.The obtained proportion and energy data were substituted into the formula to obtain the optical quantum flux density of each wavelength band,which provided a theoretical basis for the reasonable and accurate light supplementation of greenhouse vegetables and fruits.

关 键 词：光量子通量密度 太阳高度角 数据拟合 日光温室 

分 类 号：S237[农业科学—农业机械化工程]