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首页> 外文会议>International astronautical congress >A MINIATURIZED INCUBATOR DESIGN FOR MICROGRAVITY BOTANIC EXPERIMENTS IN CUBESATS
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A MINIATURIZED INCUBATOR DESIGN FOR MICROGRAVITY BOTANIC EXPERIMENTS IN CUBESATS

机译：立方微重力植物实验的微型化孵化器设计

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As the interest in commercial human space-flight and human space-exploration is gaining momentum, the development of closed-loop life-support systems and their enabling technologies become a more and more critical need. Perfecting our understanding of how botany and plant-growing are affected by microgravity environments is essential to develop the ability to produce food in space and plan long-duration human missions. The rationale behind this work is that we would be able to reach these goals faster if space botanic experiments were simpler and more affordable to perform for researchers around the world. In this paper, we describe the design of a miniaturized, autonomous plant incubator that can fit within the narrow size constraints of the 3 units CubeSat standard. This incubator is also one of two payloads of the 3U CubeSat being developed at Polytechnique Montreal by PolyOrbite for the third iteration of the Canadian Satellite Design Challenge, an inter-university competition. The payload named SpaceBean is a technology demonstrator, it measures 94x94x30 mm and weights just about 400 g. It includes pressure, temperature, and humidity sensors, as well as CO_2 and O_2 detectors. The specific scientific experiment that will be carried out in SpaceBean by PolyOrbite is to grow a plant for only three to four weeks, when the surface of the leaves reaches approximately 1 cm~2, to study its germination and respiration process. All the information about the status of the plant is collected by the incubator and transmitted using the I2C protocol. The overall design does not exceed a peak power consumption of 2.5W. PolyOrbite's mission aims at positioning SpaceBean in a sun-synchronous orbit at a 700 km altitude. It is worth noting that the incubator is artificially lighted and heated according to the preferences of the designer of the botanic experiments. SpaceBean will grow an Arabidopsis Thaliana, a plant native to Europe and Asia from the family of Brassicaceae that has been previously grown in microgravity and for which reference experimental results exist. Moreover, its genome was entirely sequenced in 2008 in the 1001 genome project, making it particularly easy to study only certain traits of interest. If successful, the most relevant result of this experiment will be the validation of a simple, cheap, and reusable plant incubator that can fit small satellites, allowing "space-biology on a budget" for many more students and researchers.
机译：随着对商业载人航天和载人探索的兴趣日益浓厚，闭环生命支持系统及其支持技术的发展成为越来越关键的需求。完善我们对微重力环境如何影响植物和植物生长的理解，对于提高在太空中生产食物和计划长期人类任务的能力至关重要。开展这项工作的基本原理是，如果对于世界各地的研究人员而言，进行太空植物实验更简单，更实惠的话，我们将能够更快地实现这些目标。在本文中，我们描述了一种小型的自主植物孵化器的设计，该孵化器可以适应3个单位的CubeSat标准的狭窄尺寸限制。该孵化器也是PolyOrbite在蒙特利尔理工学院为加拿大卫星设计挑战赛（大学间竞赛）的第三次迭代开发的3U CubeSat的两个有效载荷之一。名为SpaceBean的有效载荷是技术演示者，它的尺寸为94x94x30 mm，重量仅为400 g。它包括压力，温度和湿度传感器，以及CO_2和O_2检测器。 PolyOrbite将在SpaceBean中进行的一项具体科学实验是，当叶子的表面达到约1 cm〜2时，只将其种植三到四个星期，以研究其发芽和呼吸过程。孵化器收集有关植物状态的所有信息，并使用I2C协议进行传输。总体设计不超过2.5W的峰值功耗。 PolyOrbite的任务旨在将SpaceBean定位在700公里高度的太阳同步轨道上。值得注意的是，根据植物实验设计者的喜好，对孵化器进行了人工照明和加热。 SpaceBean将种植拟南芥（Arabidopsis Thaliana），这是一种来自十字花科的欧洲和亚洲本地植物，该植物先前已在微重力下生长，目前已有参考实验结果。此外，它的基因组在2008年的1001基因组计划中被完全测序，这使得仅研究某些感兴趣的性状特别容易。如果成功，则该实验最相关的结果将是验证适用于小型卫星的简单，廉价且可重复使用的植物培养箱，从而使更多学生和研究人员可以“节省空间生物学”的费用。

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