CN116009626A - A Greenhouse Temperature and Humidity Control Method Based on Environmental Information - Google Patents

Abstract

The invention provides a greenhouse temperature and humidity control method based on environmental information, which comprises the following steps: acquiring optimal growth temperature and humidity data of crops; judging the current season; acquiring external weather environment information; monitoring the environmental temperature and humidity in the greenhouse, and judging whether to start temperature and humidity regulation according to the optimal temperature and humidity data; and carrying out temperature and humidity adjustment according to the optimal growth temperature and humidity data of crops and the current season and external gas phase environment information. The invention aims to provide a greenhouse temperature and humidity control method based on environmental information, which is used for achieving the purpose of intelligently controlling the growth environmental elements of crops by analyzing the growth period of the crops, according to the growth period of the crops, local real-time environmental data, geographic positions and temperature and humidity data in the greenhouse and according to the priority of control equipment in the greenhouse and controlling and regulating the temperature and humidity according to an algorithm.

Description

A Greenhouse Temperature and Humidity Control Method Based on Environmental Information

technical field

The invention relates to the technical field of intelligent agricultural control, in particular to a greenhouse temperature and humidity control method based on environmental information.

Background technique

Greenhouse planting is a planting method widely used in my country's agricultural production at present. It is suitable for cultivating vegetables, fruits, flowers and other crops. As of 2020, the area of my country's greenhouses is about 1.873 million hectares. According to the construction method of the greenhouse, it can be roughly divided into plastic greenhouses, solar greenhouses, glass greenhouses, etc. At present, the area of plastic greenhouses is the largest in my country, accounting for about 60% of the total area, followed by solar greenhouses, accounting for about 30%.

The control of temperature and humidity in traditional plastic greenhouses mainly depends on the control of the air outlet, and the indoor temperature and humidity are adjusted by opening or closing the air outlet. Plastic greenhouses rely on air vents to adjust temperature and humidity mainly through factors such as air flow, temperature and humidity differences inside and outside the greenhouse, so that the temperature and humidity inside and outside the greenhouse tend to be consistent, so as to achieve the purpose of control. However, in winter and summer in the north, this type of greenhouse cannot be used well because the outdoor temperature is too low or too high.

In order to solve the problem of the applicability of plastic greenhouses in winter and summer, solar greenhouses have been improved. The solar greenhouses pass through the back wall and gable walls on both sides, and the inclined surfaces are laid with light-transmitting materials for lighting. of heat. In winter, the solar greenhouse can achieve the purpose of heat preservation by covering quilts and straw curtains. In terms of temperature and humidity adjustment in the solar greenhouse, the temperature and humidity can be adjusted by putting away and putting down quilts, straw curtains, and shed films.

Glass greenhouse is a greenhouse technology that has emerged in recent years. The construction cost is higher than that of plastic greenhouses and solar greenhouses, but through the control of skylights, side windows, fans and other equipment, the temperature and humidity in the greenhouse can be better controlled. .

Due to the labor-intensive, time-consuming and labor-intensive work of opening and closing the tuyere, straw curtains, quilts, etc., there are currently some electric-mode devices on the market, such as blowers, electric roller blinds, etc., by pressing Press the switch button to control the mechanical arm to replace human labor. Although these devices can greatly reduce the intensity of physical labor, they cannot achieve precise control and still need people to keep an eye on them. Therefore, it is necessary to design a greenhouse temperature and humidity control method based on environmental information.

Contents of the invention

The purpose of the present invention is to provide a greenhouse temperature and humidity control method based on environmental information, by analyzing the growth period of crops, according to the crop growth period, local real-time environmental data, geographical location, temperature and humidity data in the greenhouse, and according to The priority of the control equipment in the greenhouse is to control and adjust the temperature and humidity according to the algorithm, so as to achieve the purpose of intelligently controlling the environmental elements of crop growth.

To achieve the above object, the present invention provides the following scheme:

A greenhouse temperature and humidity control method based on environmental information, comprising the following steps:

Step 1: Obtain the optimum temperature and humidity data for crop growth;

Step 2: Determine the current season;

Step 3: Obtain external meteorological environment information;

Step 4: Monitor the ambient temperature and humidity in the shed, and judge whether to start temperature and humidity adjustment according to the best temperature and humidity data;

Step 5: Adjust the temperature and humidity according to the optimal growth temperature and humidity data of the crops, the current season and the external gas phase environment information.

Optionally, in step 1, the optimum growth temperature and humidity of the crops are obtained, specifically:

According to the start and end time of the crop growth period, important agricultural activities during the growth period, growth and development characteristics, water, fertilizer, and appropriate environmental parameters, the crop growth period model is established, and the actual planting date of the crop is calculated according to the growth period model. Growth period, to obtain the optimal growth temperature and humidity range of the crop at the current time point.

Optionally, in step 2, the current season is judged, specifically:

Calculate the sunrise and sunset time of the current location according to the latitude and longitude of the greenhouse location and the principle of time zone division, calculate the daylight time according to the sunrise and sunset time, and judge the current season according to the daylight time and the current month.

Optionally, in step 3, the external meteorological environment information is obtained, specifically:

Obtain the outdoor ambient temperature and humidity information according to the data of the outdoor weather station or the local weather station;

Optionally, in step 4, the ambient temperature and humidity in the shed are monitored, specifically:

Use the temperature and humidity monitoring device inside the greenhouse to collect the current temperature and humidity data value inside the greenhouse and the last measured temperature and humidity data value to judge whether the temperature and humidity data value this time belongs to the optimal growth temperature and humidity range. If not, start the temperature and humidity adjustment ;

If it belongs to, calculate the current environmental change amount according to the current temperature and humidity data value and the last measured temperature and humidity data value, where the current environmental change amount is the current temperature and humidity data value and the last measured temperature and humidity data value to calculate this time The difference in the amount of environmental change, a positive value indicates an increase, and a negative value indicates a decrease;

Calculate the last two environmental changes. If the last two environmental changes have the same trend, that is, the same rise or fall, then it is judged that the next change trend is consistent with the current trend, and based on the current temperature and humidity data value and the current environment The change amount calculates the temperature and humidity data value at the next monitoring time point, where the temperature and humidity data value at the next monitoring time point is the sum of the current temperature and humidity data value and the current environmental change amount, and judges the temperature and humidity data at the next monitoring time point Whether the value belongs to the optimal growth temperature and humidity range, if not, start the temperature and humidity adjustment.

Optionally, in step 5, the temperature and humidity are adjusted according to the crop's optimal growth temperature and humidity data, the current season and the external gas phase environment information, specifically:

Adjust the temperature and humidity according to the optimal growth temperature and humidity data of crops, the current season and the external gas phase environment information, including: temperature rise adjustment, temperature drop adjustment and dehumidification adjustment;

The temperature rise adjustment is specifically:

If the current season is winter or autumn, and the outside world is at night or the difference between the best temperature data value and the temperature data value in the shed is within 1°C, all ventilation facilities will be turned off;

If there is a large difference between the temperature in the shed and the optimal temperature, turn off all ventilation equipment, expand all insulation equipment, and check the difference between the current temperature data value and the optimal temperature data value. If it is greater than 1°C, turn on the heating equipment;

Check the temperature and humidity data value in the shed every 5 minutes. When the temperature data value in the shed reaches the middle value of the optimum temperature data value range and the humidity data value is still in the optimum range, stop the heating equipment. Before reaching the optimum range, the humidity data value has exceeded the optimum range, first heat the heating equipment to the middle value of the optimum temperature data value range, then stop heating, start the spray equipment, and supplement the humidity in the shed;

The cooling adjustment is specifically:

If it is daytime and it is in June-August, if the outside temperature is higher than 28°C, turn on the water curtain to cool down; if the outside temperature is lower than 28°C, turn on the fan to cool down; if the outside temperature is lower than 24°C, use natural ventilation Cool down; when cooling through ventilation, if the temperature cannot be effectively lowered within 10 minutes, control to turn on the spray equipment;

If the current season is spring or autumn, and the outside is at night, turn on the natural ventilation equipment to 1/3 to cool down, and monitor the temperature data in the shed at the same time, when the optimal temperature is reached or exceeds the optimal temperature by about 1°C , turn off the natural ventilation equipment;

The dehumidification adjustment is specifically as follows: if the current season is winter, set 1 hour after dawn, open the damper 1/3, and perform dehumidification and ventilation;

If the current season is spring or autumn, set the damper to open 1/3 40 minutes after dawn for dehumidification and ventilation;

If the current season is summer, set the damper to open 1/3 for dehumidification and ventilation 40 minutes after dawn; if it is summer night, and the outside temperature continues to be above 25 degrees from 12 o'clock to 1 o'clock at night, additionally set it at 1 o'clock Open the damper by 1/3, carry out dehumidification and ventilation and continuously monitor the temperature change, if the temperature in the shed drops too fast, close the damper;

During dehumidification and ventilation, it is necessary to monitor the temperature and humidity data changes in the shed in real time, and close the damper when the temperature begins to drop.

According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects: a greenhouse temperature and humidity control method based on environmental information provided by the present invention can accurately control various types of equipment in the greenhouse according to environmental factors, geographical factors, and crop factors , the environmental temperature and humidity of the entire planting process of the crops are intelligently adjusted; the invention utilizes the growth period of the crops by inputting factors such as the growth period of the crops, geographical location information, external environment temperature and humidity, temperature and humidity in the greenhouse, and greenhouse control equipment. Get the best temperature and humidity range for crop growth at the current time point; then monitor the temperature and humidity change curve in the shed, and when reaching the critical point of the temperature range, make an intelligent judgment based on the temperature and humidity of the external environment and the control equipment of the greenhouse, and adjust the temperature and humidity to the optimum temperature and humidity.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required in the embodiments. Obviously, the accompanying drawings in the following description are only some of the present invention. Embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without paying creative labor.

Fig. 1 is a flow chart of the method of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The purpose of the present invention is to provide a greenhouse temperature and humidity control method based on environmental information, by analyzing the growth period of crops, according to the crop growth period, local real-time environmental data, geographical location, temperature and humidity data in the greenhouse, and according to The priority of the control equipment in the greenhouse is to control and adjust the temperature and humidity according to the algorithm, so as to achieve the purpose of intelligently controlling the environmental elements of crop growth.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

A greenhouse temperature and humidity control method based on environmental information, comprising the following steps:

Step 1: Obtain the optimum temperature and humidity data for crop growth;

Step 2: Determine the current season;

Step 3: Obtain external meteorological environment information;

Step 4: Monitor the ambient temperature and humidity in the shed, and judge whether to start temperature and humidity adjustment according to the best temperature and humidity data;

Step 5: Adjust the temperature and humidity according to the optimal growth temperature and humidity data of the crops, the current season and the external gas phase environment information.

In particular, the premise of the application of the present invention is that the relevant equipment of the greenhouse must be modified to support remote automatic control, otherwise the corresponding system control cannot be realized.

In step 1, the optimum growth temperature and humidity of the crops are obtained, specifically:

According to the start and end time of the crop growth period, important agricultural activities during the growth period, growth and development characteristics, water, fertilizer, and appropriate environmental parameters, the crop growth period model is established, and the actual planting date of the crop is calculated according to the growth period model. Growth period, to obtain the optimal growth temperature and humidity range of the crop at the current time point.

The system comes with growth period models of common crops, and users can also import their own crop growth period models as needed. The crop growth period model generally includes the start and end time of the crop growth period, important agricultural activities in this growth period, growth and development characteristics, water and fertilizer, and suitable environmental parameters.

In step 2, the current season is judged, specifically:

Calculate the sunrise and sunset time of the current location according to the latitude and longitude of the greenhouse location and the principle of time zone division, calculate the daylight time according to the sunrise and sunset time, and judge the current season according to the daylight time and the current month.

For example, when the daytime sunshine time does not exceed 11 hours and it is between December and February, it is judged to belong to winter. This method is derived based on the basic concepts of longitude, latitude and time zone.

Optionally, in step 3, the external meteorological environment information is obtained, specifically:

Obtain the outdoor ambient temperature and humidity information according to the data of the outdoor weather station or the local weather station;

Optionally, in step 4, the ambient temperature and humidity in the shed are monitored, specifically:

Use the temperature and humidity monitoring device inside the greenhouse to collect the current temperature and humidity data value inside the greenhouse and the last measured temperature and humidity data value to judge whether the temperature and humidity data value this time belongs to the optimal growth temperature and humidity range. If not, start the temperature and humidity adjustment ;

If it belongs to, calculate the current environmental change amount according to the current temperature and humidity data value and the last measured temperature and humidity data value, where the current environmental change amount is the current temperature and humidity data value and the last measured temperature and humidity data value to calculate this time The difference in the amount of environmental change, a positive value indicates an increase, and a negative value indicates a decrease;

Calculate the last two environmental changes. If the last two environmental changes have the same trend, that is, the same rise or fall, then it is judged that the next change trend is consistent with the current trend, and based on the current temperature and humidity data value and the current environment The change amount calculates the temperature and humidity data value at the next monitoring time point, where the temperature and humidity data value at the next monitoring time point is the sum of the current temperature and humidity data value and the current environmental change amount, and judges the temperature and humidity data at the next monitoring time point Whether the value belongs to the optimal growth temperature and humidity range, if not, start the temperature and humidity adjustment.

Optionally, in step 5, the temperature and humidity are adjusted according to the crop's optimal growth temperature and humidity data, the current season and the external gas phase environment information, specifically:

Adjust the temperature and humidity according to the optimal growth temperature and humidity data of crops, the current season and the external gas phase environment information, including: temperature rise adjustment, temperature drop adjustment and dehumidification adjustment;

Through the above steps to monitor the temperature and humidity in the greenhouse, it is necessary to install the temperature and humidity sensor equipment in the greenhouse in advance to obtain the temperature and humidity data in the greenhouse. The default is to monitor the data every 5 minutes. The monitoring interval is related to the monitoring capability of the temperature and humidity sensor. The recommended interval is 1-15 minutes, preferably 5-10 minutes.

Under normal circumstances, every time the temperature in the greenhouse increases by 1 degree, the humidity decreases by 3% to 5%. Therefore, the adjustment of temperature and humidity is common under most conditions, and the temperature adjustment measures in the four seasons, morning and evening are also different:

In winter, due to the time period of external light, the temperature is low, and the temperature inside the shed is about 2.5-10°C higher than the temperature outside the shed, mainly for heat preservation and temperature increase; The temperature difference begins to increase, generally between 6 and 25°C, and ventilation and cooling are mainly used; in summer, the outside temperature is the highest, mainly for cooling; in autumn, as the outside temperature gradually drops, the temperature inside the shed also drops, mainly Mainly heat preservation and cold protection; on sunny days, the lowest temperature generally occurs before sunrise in the early morning, and the shed temperature rises with the height of the sun after sunrise. ℃, the highest temperature in the shed appears from 12:00 noon to 1:00 pm, and the temperature in the shed begins to drop after 2:00 pm to 3:00 pm, with an average drop of 3-5°C per hour, and the fastest drop before sunset; The internal temperature changes slowly, and the temperature increase is also small. Generally, when the cloud layer is thick, sometimes the increase is about 2°C-5°C.

The temperature rise adjustment is specifically:

If the current season is winter or autumn, and the outside world is at night or the difference between the best temperature data value and the temperature data value in the shed is within 1°C, all ventilation facilities will be turned off;

If there is a large difference between the temperature in the shed and the optimal temperature, turn off all ventilation equipment, expand all insulation equipment, and check the difference between the current temperature data value and the optimal temperature data value. If it is greater than 1°C, turn on the heating equipment;

Check the temperature and humidity data value in the shed every 5 minutes. When the temperature data value in the shed reaches the middle value of the optimum temperature data value range and the humidity data value is still in the optimum range, stop the heating equipment. Before reaching the optimum range, the humidity data value has exceeded the optimum range, first heat the heating equipment to the middle value of the optimum temperature data value range, then stop heating, start the spray equipment, and supplement the humidity in the shed;

Under normal circumstances, the temperature inside the shed is slightly higher than the temperature outside the shed, so the temperature rise adjustment is generally in winter or late autumn.

The cooling adjustment is specifically:

The cooling adjustment is generally performed during the daytime in summer or spring and autumn. When cooling during the day, it is necessary to consider the heat preservation effect of the plastic film at night after absorbing heat; in the spring and autumn seasons, ventilation is generally preferred for cooling. In summer, because the temperature at night is relatively high, and the temperature in the shed rises faster, it is preferred to use fans, water curtains, etc. to cool down; when cooling is required at night, because there is no direct sunlight, generally use Ventilation is used to cool down. If it is spring or autumn, ventilation is used to cool down; if it is summer, fans, water curtains, etc. are used to cool down; when it is necessary to cool down at night, ventilation is used to cool down:

If it is daytime and it is in June-August, if the outside temperature is higher than 28°C, turn on the water curtain to cool down; if the outside temperature is lower than 28°C, turn on the fan to cool down; if the outside temperature is lower than 24°C, use natural ventilation Cool down; when cooling through ventilation, if the temperature cannot be effectively lowered within 10 minutes, control to turn on the spray equipment;

If the current season is spring or autumn, and the outside is at night, turn on the natural ventilation equipment to 1/3 to cool down, and monitor the temperature data in the shed at the same time, when the optimal temperature is reached or exceeds the optimal temperature by about 1°C , turn off the natural ventilation equipment;

The dehumidification adjustment is specifically:

Under normal circumstances, at night, because the air door is closed, the humidity will be very high, and it can reach 100% in the early morning, so it is necessary to open the air door in the early morning for ventilation and dehumidification, but in winter, because the outside temperature is relatively low, it is necessary to wait for dawn After 1 hour, the greenhouse has accumulated some heat before opening the damper; in summer, if the nighttime temperature is above 25 degrees, the damper can be normally opened by 1/3, and the temperature change will be continuously monitored. If the temperature in the shed drops too fast, You need to close the damper;

If the current season is winter, set 1 hour after dawn, open the damper 1/3 for dehumidification and ventilation;

If the current season is spring or autumn, set the damper to open 1/3 40 minutes after dawn for dehumidification and ventilation;

If the current season is summer, set the damper to open 1/3 for dehumidification and ventilation 40 minutes after dawn; if it is summer night, and the outside temperature continues to be above 25 degrees from 12 o'clock to 1 o'clock at night, additionally set it at 1 o'clock Open the damper by 1/3, carry out dehumidification and ventilation, and continuously monitor the temperature change, if the temperature in the shed drops too fast, close the damper;

During dehumidification and ventilation, it is necessary to monitor the temperature and humidity data changes in the shed in real time, and close the damper when the temperature begins to drop.

According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects: a greenhouse temperature and humidity control method based on environmental information provided by the present invention can accurately control various types of equipment in the greenhouse according to environmental factors, geographical factors, and crop factors , the environmental temperature and humidity of the entire planting process of the crops are intelligently adjusted; the invention utilizes the growth period of the crops by inputting factors such as the growth period of the crops, geographical location information, external environment temperature and humidity, temperature and humidity in the greenhouse, and greenhouse control equipment. Get the best temperature and humidity range for crop growth at the current time point; then monitor the temperature and humidity change curve in the shed, and when reaching the critical point of the temperature range, make an intelligent judgment based on the temperature and humidity of the external environment and the control equipment of the greenhouse, and adjust the temperature and humidity to the optimum temperature and humidity.

In this paper, specific examples have been used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; meanwhile, for those of ordinary skill in the art, according to the present invention Thoughts, there will be changes in specific implementation methods and application ranges. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims (6)

1. The greenhouse temperature and humidity control method based on the environmental information is characterized by comprising the following steps of:

step 1: acquiring optimal growth temperature and humidity data of crops;

step 2: judging the current season;

step 3: acquiring external weather environment information;

step 4: monitoring the environmental temperature and humidity in the greenhouse, and judging whether to start temperature and humidity regulation according to the optimal temperature and humidity data;

step 5: and carrying out temperature and humidity adjustment according to the optimal growth temperature and humidity data of crops and the current season and external gas phase environment information.

2. The greenhouse temperature and humidity control method based on environmental information according to claim 1, wherein in step 1, the optimal growth temperature and humidity of crops is obtained, specifically:

according to the growth period start-stop time, important agronomic activities in the growth period and growth and development characteristics of crops, water, fertilizer and proper environmental parameters, a crop growth period model is built, according to the actual sowing date of crops, the actual crop growth period of the current date is calculated according to the growth period model, and the optimal growth temperature and humidity range of the current time point of the crops is obtained.

3. The greenhouse temperature and humidity control method based on environmental information according to claim 2, wherein in step 2, the current season is determined as follows:

calculating sunrise and sunset time of the current place according to longitude and latitude and time zone division principles of the greenhouse, calculating daytime illumination time according to the sunrise and sunset time, and judging the current belonging season according to the daytime illumination time and the current month.

4. The greenhouse temperature and humidity control method based on environmental information according to claim 2, wherein in step 3, the external weather environmental information is obtained, specifically:

and acquiring outdoor environmental temperature and humidity information according to the data of the outdoor weather station or the local weather station.

5. The greenhouse temperature and humidity control method based on environmental information according to claim 2, wherein the monitoring of the environmental temperature and humidity in the greenhouse is specifically:

acquiring a current temperature and humidity data value and a last measured temperature and humidity data value in the greenhouse by a temperature and humidity monitoring device in the greenhouse, judging whether the current temperature and humidity data value belongs to an optimal growth temperature and humidity range, and if not, starting temperature and humidity regulation;

if the method belongs to the field, calculating the current environmental change according to the current temperature and humidity data value and the temperature and humidity data value measured last time, wherein the current environmental change is the difference value of the current temperature and humidity data value and the temperature and humidity data value measured last time, and the positive value represents rising and the negative value represents lowering;

calculating the environmental change quantity of the last two times, if the change trend of the environmental change quantity of the last two times is consistent, namely same rise or same fall, judging that the next change trend is consistent with the current trend, calculating the temperature and humidity data value of the next monitoring time point according to the current temperature and humidity data value and the current environmental change quantity, wherein the temperature and humidity data value of the next monitoring time point is the sum of the current temperature and humidity data value and the current environmental change quantity, judging whether the temperature and humidity data value of the next monitoring time point belongs to the optimal growth temperature and humidity range, and if not, starting temperature and humidity adjustment.

6. The greenhouse temperature and humidity control method based on environmental information according to claim 4, wherein in step 5, temperature and humidity adjustment is performed according to optimal crop growth temperature and humidity data, current belonging season and external gas phase environmental information, specifically:

carrying out temperature and humidity adjustment according to optimal growth temperature and humidity data of crops, current belonging seasons and external gas phase environment information, wherein the method comprises the following steps: heating and cooling and dehumidifying;

the temperature rise adjustment is specifically as follows:

if the current season is winter or autumn and the outside is at night or the difference value between the optimal temperature data value and the temperature data value in the shed is within 1 ℃, closing all ventilation facilities;

if the difference between the temperature in the greenhouse and the optimal temperature is larger, all ventilation equipment is closed, all heat preservation equipment is unfolded, the difference between the current temperature data value and the optimal temperature data value is checked, and if the difference is larger than 1 ℃, heating equipment is started;

checking temperature and humidity data values in the greenhouse every 5 minutes, stopping heating equipment when the temperature data value in the greenhouse reaches the middle value of the optimal temperature data value range and the humidity data value is still in the optimal range, heating the heating equipment to the middle value exceeding the optimal temperature data value range if the humidity data value in the greenhouse does not reach the optimal range, stopping heating, starting the spraying equipment, and supplementing the humidity in the greenhouse;

the temperature reduction adjustment is specifically as follows:

if the day is currently in the daytime and is in the period of 6-8 months, if the external temperature is higher than 28 ℃, starting a water curtain for cooling; if the external temperature is lower than 28 ℃, starting a fan to cool; if the external temperature is lower than 24 ℃, naturally ventilating and cooling; when the temperature is reduced in a ventilation mode, if the temperature still cannot be effectively reduced within 10 minutes, controlling the opening of the spraying equipment;

if the current season is spring or autumn and the outside world is at night, opening the natural ventilation equipment to 1/3 amplitude to cool, monitoring the temperature data value in the shed, and closing the natural ventilation equipment when the optimal temperature is reached or exceeds the optimal temperature by about 1 ℃;

the dehumidification regulation is specifically as follows: if the current season is winter, setting the weather for 1 hour, opening an air door for 1/3, and dehumidifying and ventilating;

if the current season is spring or autumn, setting the time 40 minutes after the setting is bright, opening an air door 1/3, and performing dehumidification and ventilation;

if the current season is summer, setting the season to be bright for 40 minutes, opening an air door for 1/3, and dehumidifying and ventilating; if the temperature is in summer and at night and the outside temperature is continuously higher than 25 ℃ from 12 points to 1 point, the air door is opened for 1/3 when the temperature is additionally arranged at 1 point, dehumidification and ventilation are carried out, the temperature change is continuously monitored, and if the temperature in the greenhouse is reduced too fast, the air door is closed;

when dehumidification and ventilation are carried out, the change of the temperature and humidity data value in the greenhouse needs to be monitored in real time, and when the temperature begins to decrease, the air door is closed.

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