{"title":"紧凑型水培播种机肥料管理系统","authors":"Kaori Uehara, Hiromichi Ikeda, Akashi Satoh","doi":"10.1109/GCCE46687.2019.9015519","DOIUrl":null,"url":null,"abstract":"Liquid fertilizer management system for a compact hydroponic planter was developed. An EC (Electro Conductivity) sensor that calculates nutrient concentration value with a high accuracy with an error rate of 8.4 % by introducing an op-amp oscillator and an EC curved surface generated by the weighted least-squares method. A fertilizer addition device feeds stock solution to the planter by controlling air pressure of a pump to adjust the EC to a target value. Precise control of 1.7-% variance was achieved under various conditions. In total, our system can manage the EC with an error rate of 10 %.","PeriodicalId":303502,"journal":{"name":"2019 IEEE 8th Global Conference on Consumer Electronics (GCCE)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Fertilizer Management System for A Compact Hydroponic Planter\",\"authors\":\"Kaori Uehara, Hiromichi Ikeda, Akashi Satoh\",\"doi\":\"10.1109/GCCE46687.2019.9015519\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Liquid fertilizer management system for a compact hydroponic planter was developed. An EC (Electro Conductivity) sensor that calculates nutrient concentration value with a high accuracy with an error rate of 8.4 % by introducing an op-amp oscillator and an EC curved surface generated by the weighted least-squares method. A fertilizer addition device feeds stock solution to the planter by controlling air pressure of a pump to adjust the EC to a target value. Precise control of 1.7-% variance was achieved under various conditions. In total, our system can manage the EC with an error rate of 10 %.\",\"PeriodicalId\":303502,\"journal\":{\"name\":\"2019 IEEE 8th Global Conference on Consumer Electronics (GCCE)\",\"volume\":\"60 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2019-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2019 IEEE 8th Global Conference on Consumer Electronics (GCCE)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/GCCE46687.2019.9015519\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2019 IEEE 8th Global Conference on Consumer Electronics (GCCE)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/GCCE46687.2019.9015519","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Fertilizer Management System for A Compact Hydroponic Planter
Liquid fertilizer management system for a compact hydroponic planter was developed. An EC (Electro Conductivity) sensor that calculates nutrient concentration value with a high accuracy with an error rate of 8.4 % by introducing an op-amp oscillator and an EC curved surface generated by the weighted least-squares method. A fertilizer addition device feeds stock solution to the planter by controlling air pressure of a pump to adjust the EC to a target value. Precise control of 1.7-% variance was achieved under various conditions. In total, our system can manage the EC with an error rate of 10 %.
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