Three-dimensional multi-layer soilless cultivation technology and equipment

The core technology and equipment of the plant factory include four aspects, namely three-dimensional multi-layer soilless cultivation technology and equipment, artificial light lighting technology and equipment, intelligent environmental control technology and equipment, and plant production space automation control technology and equipment. In recent years, these core technical equipment have been greatly developed and are gradually being standardized and applied on a large scale. The design of the outer protective structure, functional zoning, and airtightness guarantee of each area of the plant factory are all important, directly related to the initial installation cost, operating cost and energy consumption of the plant factory, and also related to the production efficiency.

Three-dimensional multi-layer soilless cultivation technology and equipment
Three-dimensional multi-layer soilless cultivation technology and equipment refers to the use of soilless cultivation methods, with the help of cultivation beds and layer rack pipeline equipment, to realize the production of plants on multi-layer three-dimensional cultivation racks. The three-dimensional multi-layer soilless cultivation technology and equipment is the essential equipment necessary for the artificial light plant factory, and it is also the technical equipment that the sunlight plant factory needs to develop urgently. At present, a variety of three-dimensional multi-layer soilless cultivation technology equipment based on NFT and DFT technology has been developed, which is suitable for the production of leafy vegetables and rhizomes. Three-dimensional multi-layer soilless culture technology and equipment mainly include nutrient solution storage and supply systems (nutrient solution pool, pumping system, liquid supply and return pipeline, planting bed, control system, etc.)

Artificial light lighting technology equipment
Artificial light lighting technology and equipment is the core technology and equipment of artificial light plant factories, which provide photosynthetic energy and light signals for plant production. Fluorescent lamps are traditional light sources, and LEDs are new light sources. The physiological response mechanism of the two light sources has been widely revealed, and the biological basis of the application of the two light sources has been very clear.

However, as a new solid-state semiconductor light source, LED has the incomparable optoelectronic advantages of fluorescent lamps, including: (1) The spectrum can be modulated according to the needs of plant growth and development, and the light can be used on demand, with high biological luminous efficiency; (2) Cold light source, which can illuminate close to plants , Improve space utilization; (3) good controllability, can accurately control light intensity, light quality and light cycle, etc., suitable for factory production; (4) energy saving, environmental protection, long life, small size, light weight; (5) LED light source devices are diverse (light panels, light strips, light tubes and bulbs), which are suitable for various fields of facility gardening. At present, panel lights, strip lights, light tubes, light strips and other plant factory lights have been developed and promoted and applied. At the same time, a variety of LED supplementary lights have been developed at the Sunlight Plant Factory, including inter-row canopy supplementary lights, florescence lights, and strip lights. Artificial light lighting technology equipment mainly includes light source lamps, suspension systems, control systems, power supplies, etc.

Intelligent environmental control technology equipment
Intelligent environmental control technology and equipment are composed of actuators, detection institutions, and control institutions. Control factors include temperature, humidity, light, CO2 concentration, air flow, nutrient solution supply and other production factors. To a large extent, environmental control is intelligent The level determines the operating efficiency of the plant factory. Intelligent environmental control is based on plant environmental control, and particularly needs to be based on plant physiological response effects under the coupled control of environmental factors.
system Research. Among the environmental control elements, the most important are nutrients and light. Nutrients and light are two environmental elements with both quantitative and qualitative attributes. Intelligent control is difficult. Its control strategy has time and space requirements. It also needs to be coupled with other environmental elements to coordinate and control, which is the focus of future research and development. .
Plant production space automation management and control technology equipment
Plant production space automation management and control technology equipment includes plant transplanting and planting technology equipment, plant space horizontal and vertical movement transmission technology equipment, light source lamps horizontal and vertical movement transmission equipment, and mechanized automatic elevators, automatic harvesting and other production management technical equipment. Plant production space automation management and control technology equipment is the main equipment for plant factory assembly line operations, which is conducive to improving production efficiency and control level