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首页> 外文期刊>Acta astronautica >An autonomous plant growing miniaturized incubator for a Cubesat
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An autonomous plant growing miniaturized incubator for a Cubesat

机译：一种自主植物，种植小型化培养箱的立方体

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摘要

We developed a 2U incubator and used it to grow the legume Medicago truncatula autonomously. This prototype was designed to become a payload in a 3U Cubesat nanosatellite; it therefore weighs only 1.2 kg and has a total consumption of less than 4 Watt. The incubator is equipped with many sensors to monitor its environment such as gas, humidity and heat sensors. It also contains actuators to modify the environment such as a flexible heater and a TiO2-based ethylene photocatalyst to remove plants ethylene production. The objectives are first to determine good growth conditions in this limited volume device and to allow better prototyping of a 2U incubator experiment. Second, to build a prediction model based on measurements of plants functional traits. Therefore, first we carried out a design of experiments to perform the germination and growth of M. truncatula at temperatures of 22 degrees C and 29 degrees C, under CO2 concentrations of 380 ppm and 10000 ppm and with two photoperiod regimes 16h/8h and 20h/4h. This gives a total of 8 experimental conditions tested in large climatic chambers during a 30-day period. The 2U experiment was performed at 26 degrees C, 380 ppm CO2 and with a 20h/4h photoperiod. This experiment lasted 62 days before being stopped to find that 2 large plants had grown for almost 52 days. Secondly, by using a principal components analysis, we observed that most of the plants functional traits variables explained the variability on the first principal component, with the exception of the surface area of the small leaves and the quantity of small leaves which explained the variability on the second principal component. The quantity of big leaves, which is an easily measurable variable with a camera, was very strongly correlated with the first principal component. These 3 variables and 2 others were included in the model equations used to predict the values of visible and hidden plants functional traits. This model has been successfully tested on the 2U incubator experiment allowing precise determination of fresh weight biomass under 20% error. The determination of the fresh weight of the roots, the fresh weight of the shoots, the amount of big and small leaves, the total amount of leaves, the surface area of big leaves and small leaves and the total surface area of the leaves was carried out.
机译：我们开发了一个2U孵化器，用它来自主地生长豆类Medicago Truncatula。该原型设计用于在3U立方体纳米卫星中成为有效载荷;因此，它仅重1.2千克，总消耗量小于4瓦。孵化器配备了许多传感器，以监测其环境，如气体，湿度和热传感器。它还含有致动器，用于改变柔性加热器和基于TiO 2的乙烯光催化剂的环境，以除去植物乙烯生产。首先，目标是在该有限的体积装置中确定良好的生长条件，并允许更好的2U培养箱实验原型设计。其次，基于植物功能性状的测量构建预测模型。因此，首先，我们进行了实验的设计，以在22℃和29℃的温度下进行M. Truncatula的萌发和生长，在CO 2浓度为380ppm和10000ppm，并且具有两个光周期制度16h / 8h和20h / 4h。这在30天期间，在大气候腔室中提供了8种实验条件。 2U实验在26℃，380ppm CO 2和20H / 4H光周期中进行。这项实验持续了62天，然后停止发现2种大型植物近52天。其次，通过使用主要成分分析，我们观察到大多数植物功能性状变量解释了第一主成分的可变性，除了小叶的表面积和小叶的数量，解释了可变性的第二个主成分。与相机易于测量的变量，大叶子的数量与第一主成分非常强烈地相关。这些3个变量和其他2个用于预测可见和隐藏植物功能性状的值的模型方程中。该模型已经成功地测试了2U培养箱实验，允许精确测定20％误差下的新重量生物量。测定根部的鲜重，芽的鲜重，大小叶子的量，叶子的总量，大叶子和小叶的表面积，叶子的总表面积和叶子的总表面积出去。

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  • 来源
    《Acta astronautica》 |2021年第2期|439-449|共11页
  • 作者

    Trouillefou Christophe Marcel; Cio Yann-Seing Law-Kam; Jolicoeur Mario; Said Bilel; Galarneau Anne; Achiche Sofiane; Beltrame Giovanni;

  • 作者单位

    Ecole Polytech Montreal Dept Comp & Software Engn 2500 Chemin Polytech Montreal PQ H3T 1J4 Canada;

    Ecole Polytech Montreal Dept Mech Engn 2500 Chemin Polytech Montreal PQ H3T 1J4 Canada;

    Ecole Polytech Montreal Dept Chem Engn 2500 Chemin Polytech Montreal PQ H3T 1J4 Canada;

    Univ Montpellier Inst Charles Gerhardt Montpellier ENSCM UMR CNRS 5253 240 Ave Prof Emile Jeanbrau F-34296 Montpellier 5 France;

    Univ Montpellier Inst Charles Gerhardt Montpellier ENSCM UMR CNRS 5253 240 Ave Prof Emile Jeanbrau F-34296 Montpellier 5 France;

    Ecole Polytech Montreal Dept Mech Engn 2500 Chemin Polytech Montreal PQ H3T 1J4 Canada;

    Ecole Polytech Montreal Dept Comp & Software Engn 2500 Chemin Polytech Montreal PQ H3T 1J4 Canada;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Life support system; Autonomous incubator; Cubesat; Medicago truncatula; Plant functional traits; Prediction model;

    机译：生命支持系统;自主孵化器;立方体;Medicago truncatula;植物功能性状;预测模型;

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