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Advanced systems monitor and adjust temperature, humidity, light, and irrigation, ensuring optimal crop growth while saving resources and labor.
01.What is greenhouse environmental control?
- Greenhouse Environmental Control: It is a system used to manage the environment inside the greenhouse. The greenhouse environmental control system monitors and controls parameters such as temperature, humidity, light, CO2 concentration, etc. to provide the most suitable growing environment, thereby optimizing plant growth and yield.
- These systems typically consist of sensors, actuators, controllers, and user interfaces, allowing for automated adjustment of greenhouse conditions or manual adjustment by growers based on crop growth requirements.
02.How does greenhouse environmental control work?
The greenhouse environmental control system operates by employing sensors to monitor diverse parameters including indoor and outdoor temperature, humidity, light intensity, soil temperature, soil moisture, CO2 levels, etc. These sensors collect pertinent information and transmit it to the control platform. Users can subsequently modify settings and parameters to achieve automatic regulation. The system can optimize energy-saving adjustments based on user-defined priorities such as timed control, temperature sensing, light sensing, etc. This optimization aims to enhance energy efficiency and productivity.
Principle?
Sensors perceive the climate conditions inside the greenhouse, including air temperature, air humidity, solar radiation, and CO2 concentration. The greenhouse system intervenes and adjusts the indoor climate based on this data to meet the growth requirements of the crops inside.
03. What does intelligent control mean?
100%OPEN CONTROL?
Automated start-stop based on time periods.
Automated protection based on wind speed.
Automatic temperature regulation.
Automatic humidity supplementation.
…
The role of the software platform:
- Displaying data and data logs.
- Energy-saving regulation settings.
- Equipment management.
04. What does environmental control ?
Greenhouse climate control
Regulating the greenhouse climate by controlling the activation of various electrical systems.
Greenhouse climate control depends on installed systems
- If crops need additional light, install a lighting system.
- If humidity needs to be increased, install a humidification system.
- To raise greenhouse temperature, install a heating system. For cooling, install ventilation and evaporative cooling systems. Overall, controlling greenhouse climate depends on installing appropriate hardware systems.
05.Which greenhouse systems can regulate the climate?
Environment control
06.How does the greenhouse control process work?
07. How does the climate controller operate?
08.Components and functions of environmental control hardware?
Environment control
Weather monitoring station: Solar-powered and wireless, it collects various meteorological data for greenhouse control, including temperature, humidity, light intensity, wind speed, wind direction, rainfall, radiation, and atmospheric pressure.
Element sensors: As internal sensors for greenhouse environmental control, they are solar-powered and wirelessly transmit data. They can collect indoor temperature, relative humidity, air pressure, light intensity, soil temperature, and soil humidity.
Carbon dioxide sensor: It provides real-time CO2 levels in the greenhouse to the controller. It is powered by wired connection and transmits data wirelessly. It can collect CO2 levels inside the greenhouse.
Element sensors: As internal sensors for greenhouse environmental control, they are solar-powered and wirelessly transmit data.
Power distribution cabinet: All greenhouse electrical appliances are connected to this cabinet. It is an essential component for every greenhouse with electrical systems.
09. Environmental Control Hardware Specifications
LED Display:
Requires independent 220V power supply Installed on the crossbeam in the middle aisle of the greenhouse for easy viewing by greenhouse staff. Powered by 220V, wirelessly transmits environmental data. Wiring: Approximately 120W power, 220V dual-core wire, 1.0 square millimeters.
10. Why Implement an Environmental Control System?
The main goal of controlling the greenhouse climate is to create the best possible environment for crop growth. By adjusting factors like temperature, humidity, light, and CO2 levels, growers can maximize crop growth and yield.
- Temperature: Temperature directly affects the growth rate, photosynthesis rate, and water evaporation rate of crops. Too high or too low temperatures may limit crop growth or cause physiological disorders.
- Humidity: Humidity affects the water absorption and evaporation rate of crops. High humidity may lead to the proliferation of pathogens like mold, while low humidity may result in excessive water evaporation from crops.
- Light: Light is the energy source for photosynthesis in crops. Light intensity, quality, and photoperiod all affect the growth rate, plant structure, and yield of crops.
- CO2 concentration: Carbon dioxide is one of the raw materials for photosynthesis in crops. Increasing CO2 concentration can enhance the photosynthesis rate and improve crop growth efficiency.
11.How is the HVAC system controlled?
Automatically tracks global seasonal changes
- Time segment control: The controller can divide a day into four segments. Growers can set the start time for each segment or let it adjust based on astronomical time changes. Different segments have different control settings.
- Transition periods: The controller sets start times for each period and specifies transition times to move to the next period. Control parameters smoothly adjust to the target values of the next period, maintaining stable greenhouse conditions without disrupting crop growth.
- AI Algorithm – Automatic Greenhouse Climate Control ：The algorithm monitors indoor and outdoor conditions, adjusting heating or cooling based on external factors like temperature and wind speed to save energy. It also anticipates changes in sunlight and adjusts temperature accordingly to maintain stability indoors.
12.What are some AI policy algorithms?
- Window opening strategy
Analyzes current greenhouse climate using sensors to decide how to ventilate, considering factors like window type, number, and angle for improved ventilation effectiveness.
- Dehumidification strategy
By monitoring relative humidity (RH), humidity deficit, and vapor pressure deficit (VPD), determine when to start the dehumidification program.
- Fan-pad strategy
When natural ventilation isn’t sufficient, the fan-pad cooling program kicks in, activating cooling devices as needed to save energy.
- Internal thermal curtain strategy
Daytime for shading, nighttime for insulation. The curtain unfolds at night if the external temperature drops below the set level for insulation.
- External sunshade curtain strategy
When outdoor wind speed exceeds safety thresholds, the sunshade retracts to a set position and returns to normal when conditions improve.
- Fan circulation strategy
The climate controller lets users activate fan circulation based on humidity levels, cooling needs, or mist presence.
- Mist strategy
The misting system can start based on humidity levels, indoor temperature, and VPD. It can run intermittently or continuously.
- Lighting strategy
Automatically starts and stops based on timing, accumulated light exposure, and light intensity.
- CO2 control
Through sensor data collection combined with intelligent algorithms, CO2 supplementation can be effectively regulated.
Open system program
The system enables users to operate non-standard equipment. These are devices beyond the system’s defaults. Users define start and stop conditions for these devices in custom programs, with parameters like minimum run and off times and delay settings to prevent frequent startups and protect the equipment.
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Whether it’s greenhouse design, selection of planting systems, or customized needs, our expert team will provide you with efficient and cost-effective solutions.
No.108, Hegang Road, South AreaChengdu Modern Industrial Park, Pidu DistChengdu, Sichuan, China
info@cfgreenway.com
