国际空间站植物培养装置与环境监控系统

Design of Space Plant Cultivation Device and Environmental Monitoring System

摘要:

在充分调研国际空间飞行器植物培养装置的基础上，研制了一种空间培养装置。该装置可实时监测植物不同生长阶段的环境参数，通过上位机软件设置，自动实现空间培养装置内的参数调节。使用半导体加热片控制植物培养装置箱体内温度、相对湿度，同时闭环控制CO2 浓度、乙烯浓度，供给栽培基质合适的水量，提供合适的光照度和光照时间，还可采集图像信息，且具有气体交换和冷凝水回收功能。系统运行测试表明，该方法具有较好的可行性，控制精度能满足植物生长要求，温度、湿度、乙烯浓度、CO2 浓度等参数波动均在植物生长需求范围内。

Abstract:

A device was developed on the basis of the full investigation of biological culture devices in international space vehicles. According to the plants in different growth stages, the parameters of space culture devices could be adjusted automatically by PC software. The temperature, humidity,carbon dioxide and ethene in plant growth chamber were controlled by using semiconductor heating element. It provided adequate water and nutrients, appropriate light intensity and duration. The image information was acquired. It also had the function of gas exchange and condensate water recovery. System test showed that this method was feasible. The control precision could meet the requirements of plants. The fluctuation of parameters, such as temperature, humidity, ethylene and CO2 , was within the range of plant growth needs.