CAJ | 학술논문

葡萄在运输和贮藏过程中容易发生变质，对其进行预警可有效降低大规模腐败的风险。傅里叶变换光谱表明葡萄在劣变过程中，其挥发性物质里乙醇和二氧化碳（ CO2）变化最为明显。为此，通过选用 CO2气体传感器模块和乙醇电化学传感器，设计了相应的软硬件，完成了一个低成本、小型的葡萄变质监测仪器，可以实时、定量测量葡萄挥发物质中CO2和乙醇含量。最后，通过模式识别中最小误差平方（ LMSE ）算法设计一个线性分类器，并采集了77组已知类别样本训练分类器，使仪器初步达到了葡萄变质自动报警的目的。
포도재운수화저장과정중용역발생변질，대기진행예경가유효강저대규모부패적풍험。부리협변환광보표명포도재렬변과정중，기휘발성물질리을순화이양화탄（ CO2）변화최위명현。위차，통과선용 CO2기체전감기모괴화을순전화학전감기，설계료상응적연경건，완성료일개저성본、소형적포도변질감측의기，가이실시、정량측량포도휘발물질중CO2화을순함량。최후，통과모식식별중최소오차평방（ LMSE ）산법설계일개선성분류기，병채집료77조이지유별양본훈련분류기，사의기초보체도료포도변질자동보경적목적。
Grapes are liable to deteriorate in transit and storage .But large-scale deterioration can be effectively reduced if the beginning deterioration were detected .Fourier transform infrared spectroscopy indicated that CO 2 and ethanol are the most significant volatile compounds in the grape deterioration process .Thus, a CO2 gas sensor module and an ethanol e-lectrochemistry gas sensor were selected for designing a low -cost and small monitoring device , which can measure the concentration of CO2 and ethanol real-time and quantificational .At last, a linear classifier was designed by using the least square method , and was trained by 80 known-category samples .The classifier makes it possible making the device able to alarm the beginning deterioration .