Vegetable planting system and method based on greenhouse

Abstract

The invention relates to the technical field of greenhouse vegetable planting, and discloses a greenhouse-based vegetable planting system and method, and the system comprises a planting module which is provided with a substrate for planting plants; the ventilation window is embedded in the outer side wall of the greenhouse between every two adjacent planting modules and used for guiding internal gas of the greenhouse when being opened, and the ventilation fan is fixedly connected with the inner side wall of the greenhouse and used for guiding the internal gas of the greenhouse when being opened. The environment detection module is used for detecting internal environment information of the greenhouse, and the control module is used for controlling the opening angle of the ventilation window and / or the operation power of the ventilation fan according to the environment information. The early warning module is used for determining whether to send early warning information or not according to the relation between the carbon dioxide change ratio in the preset time period and the preset change ratio. By controlling the ventilating window and the ventilating fan and combining the environment detection and early warning module, the stability and suitability of the internal environment of the greenhouse are effectively maintained, and the change or problem of the environment is found in time, so that the healthy growth of vegetables is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of greenhouse vegetable planting, and in particular to a greenhouse-based vegetable planting system and method. Background Art

[0002] Greenhouse vegetable cultivation, as an agricultural technology, uses the controlled environment (including temperature, humidity and light) constructed by greenhouses to cultivate vegetables. This method can not only effectively extend the growing season, but also provide protection for crops from adverse weather conditions, thereby ensuring the stability and efficiency of vegetable production, thus meeting the market's urgent demand for fresh vegetables.

[0003] However, although greenhouse vegetable cultivation technology has achieved remarkable results in improving vegetable yield and quality, it still faces many challenges in the actual production process. Among them, insufficient soil fertility and limited terrain conditions are two major problems, which pose a considerable challenge to greenhouse vegetable cultivation in ensuring the supply of fresh vegetables. Soil fertility not only affects the growth rate and yield of vegetables, but is also directly related to the quality and nutritional value of vegetables. However, in some areas, due to long-term overcultivation and lack of scientific soil management, soil fertility has gradually declined, resulting in slow growth of vegetables, reduced yield, and even various diseases and insect pests. Secondly, in some areas, due to complex terrain and undulating terrain, greenhouse construction and management have brought many inconveniences. For example, in mountainous or hilly areas, due to the large slope, greenhouse construction needs to overcome terrain differences to ensure the stability and safety of the greenhouse. At the same time, in plain areas, although the terrain is relatively flat, drainage problems cannot be ignored.

[0004] Therefore, there is an urgent need to invent a greenhouse vegetable planting technology to solve the problems in the prior art of slow growth of greenhouse vegetables, low yield and difficult greenhouse construction due to soil fertility and terrain factors. Summary of the invention

[0005] In view of this, the present invention proposes a greenhouse-based vegetable planting system and method, aiming to solve the problems in current technology of slow growth of greenhouse vegetables, low yield and difficult greenhouse construction due to soil fertility and terrain factors.

[0006] The present invention proposes a greenhouse-based vegetable planting system, comprising:

[0007] There are a plurality of planting modules, and the plurality of planting modules are respectively arranged inside the greenhouse, wherein the planting modules are provided with a substrate for planting plants;

[0008] A plurality of ventilation windows and ventilation fans are respectively provided, and the plurality of ventilation windows and ventilation fans are arranged opposite to each other, the ventilation windows are embedded in the outer wall of the greenhouse between two adjacent planting modules, and are used to guide the internal air of the greenhouse when the ventilation windows are opened, and the ventilation fans are fixedly connected to the inner wall of the greenhouse, and are used to guide the internal air of the greenhouse when the ventilation fans are opened;

[0009] An environment detection module is arranged inside the greenhouse, and is used to detect internal environment information of the greenhouse, wherein the environment information includes: light intensity, carbon dioxide content, humidity and temperature;

[0010] A control module, electrically connected to the ventilation window, the ventilation fan and the environment detection module, respectively, and the control module is used to control the opening angle of the ventilation window and / or the operating power of the ventilation fan according to the environmental information;

[0011] An early warning module, electrically connected to the environment detection module, and configured to determine whether to send an early warning message based on a relationship between a carbon dioxide change ratio within a preset period of time and a preset change ratio;

[0012] Wherein, when the carbon dioxide change ratio is less than the preset change ratio, the early warning module determines to send the early warning information.

[0013] Furthermore, the environment detection module includes:

[0014] A light detection unit is arranged inside the greenhouse, and is used to detect the light intensity irradiated on the plants inside the greenhouse;

[0015] A carbon dioxide detection unit, a humidity detection unit and a temperature detection unit are respectively arranged inside the greenhouse, the carbon dioxide detection unit is used to detect the carbon dioxide concentration inside the greenhouse, the humidity detection unit is used to detect the real-time humidity inside the greenhouse, and the temperature detection unit is used to detect the real-time temperature inside the greenhouse in real time;

[0016] The recording unit is provided with a time recording subunit, and the recording unit is electrically connected to the light detection unit, the carbon dioxide detection unit, the humidity detection unit and the temperature detection unit respectively. The recording unit is used to record in real time the light intensity irradiated on the plants inside the greenhouse, the carbon dioxide concentration, the real-time humidity and the real-time temperature inside the greenhouse, and mark the real-time recording time.

[0017] Furthermore, the control module includes:

[0018] A collection unit, electrically connected to the recording unit, for collecting the light intensity irradiated on the plants inside the greenhouse at each recording time, as well as the carbon dioxide concentration, real-time humidity and real-time temperature inside the greenhouse;

[0019] An analysis unit connected to the collection unit, the analysis unit being used to analyze the internal standard carbon dioxide concentration of the greenhouse according to the light intensity, real-time humidity and real-time temperature;

[0020] The central control unit is electrically connected to the collection unit, the analysis unit, the ventilation window and the ventilation fan respectively. The central control unit is used to determine the opening angle of the ventilation window and / or the operating power of the ventilation fan according to the relationship between the carbon dioxide concentration inside the greenhouse and the standard carbon dioxide concentration.

[0021] Furthermore, when the analysis unit is used to analyze the internal standard carbon dioxide concentration of the greenhouse according to the light intensity, real-time humidity and real-time temperature, it includes:

[0022] The analysis unit is configured with a Farquhar model;

[0023] The analysis unit is also used to obtain the internal standard carbon dioxide concentration of the greenhouse according to the light intensity, real-time humidity and real-time temperature and the Farquhar model.

[0024] Furthermore, the central control unit is used to determine the opening angle of the ventilation window and / or the operating power of the ventilation fan according to the relationship between the carbon dioxide concentration inside the greenhouse and the standard carbon dioxide concentration, including:

[0025] The central control unit is also used to determine whether to open the ventilation window and / or the ventilation fan according to the relationship between the carbon dioxide concentration and the standard carbon dioxide concentration;

[0026] When the carbon dioxide concentration is lower than or equal to the standard carbon dioxide concentration, the central control unit determines not to open the ventilation window and / or the ventilation fan;

[0027] When the carbon dioxide concentration is higher than the standard carbon dioxide concentration, the central control unit determines to open the ventilation window and / or ventilation fan, and determines whether to open the ventilation window and / or ventilation fan based on the ratio between the carbon dioxide concentration and the standard carbon dioxide concentration.

[0028] Furthermore, when the central control unit determines that the ventilation window and / or the ventilation fan to be opened is opened according to the concentration ratio between the carbon dioxide concentration and the standard carbon dioxide concentration, the central control unit includes:

[0029] The central control unit is configured with a first preset concentration ratio and a second preset concentration ratio, and the first preset concentration ratio is smaller than the second preset concentration ratio;

[0030] The central control unit is used to determine whether to open the ventilation window and / or the ventilation fan according to the relationship between the concentration ratio and each preset concentration ratio, wherein:

[0031] When the concentration ratio is lower than or equal to the first preset concentration ratio, the central control unit determines to open the ventilation window to guide the gas inside the greenhouse;

[0032] When the concentration ratio is higher than the first preset concentration ratio and the concentration ratio is lower than or equal to the second preset concentration ratio, the central control unit determines to turn on the ventilation fan to guide the gas inside the greenhouse;

[0033] When the concentration ratio is higher than the second preset concentration ratio, the central control unit determines to turn on the ventilation window and the ventilation fan at the same time to guide the gas inside the greenhouse;

[0034] When the central control unit determines to open the ventilation window and the ventilation fan at the same time to guide the gas inside the greenhouse, it includes:

[0035] The central control unit is also used to obtain the ratio difference between the concentration ratio and the second preset concentration ratio. The central control unit is used to determine the operating power of the ventilation fan according to the second preset concentration ratio, and determine the opening angle of the ventilation window according to the relationship between the ratio difference and the first preset concentration ratio.

[0036] Furthermore, when the central control unit determines to open the ventilation window to guide the gas inside the greenhouse, it includes:

[0037] The central control unit is further used to obtain a concentration ratio difference between the concentration ratio and the first preset concentration ratio, and determine the opening angle of the ventilation window according to the relationship between the concentration ratio difference and the preset concentration ratio difference;

[0038] Wherein, the central control unit is further configured with a first preset concentration ratio difference and a second preset concentration ratio difference, and the first preset concentration ratio difference is lower than the second preset concentration ratio difference;

[0039] When the concentration ratio difference is lower than or equal to the first preset concentration ratio difference, the central control unit determines that the opening angle of the ventilation window is M1;

[0040] When the concentration ratio difference is higher than the first preset concentration ratio difference, and the concentration ratio difference is lower than or higher than the second preset concentration ratio difference, the central control unit determines that the opening angle of the ventilation window is M2;

[0041] When the concentration ratio difference is higher than the second preset concentration ratio difference, the central control unit determines that the opening angle of the ventilation window is M3;

[0042] Moreover, M1<M2<M3.

[0043] Furthermore, when the central control unit turns on the ventilation fan to guide the gas inside the greenhouse, it includes:

[0044] The central control unit is used to obtain a concentration ratio difference between the concentration ratio and the second preset concentration ratio, and the central control unit is also used to determine the operating power of the ventilation fan according to the relationship between the concentration ratio difference and the preset concentration ratio difference;

[0045] Wherein, the central control unit is further configured with a first preset concentration ratio difference and a second preset concentration ratio difference, and the first preset concentration ratio difference is lower than the second preset concentration ratio difference;

[0046] When the concentration ratio difference is lower than or equal to the first preset concentration ratio difference, the central control unit determines that the operating power of the ventilation fan is N1;

[0047] When the concentration ratio difference is higher than the first preset concentration ratio difference, and the concentration ratio difference is lower than or higher than the second preset concentration ratio difference, the central control unit determines that the operating power of the ventilation fan is N2;

[0048] When the concentration ratio difference is higher than the second preset concentration ratio difference, the central control unit determines that the operating power of the ventilation fan is N3;

[0049] Moreover, N1<N2<N3.

[0050] Further, when the carbon dioxide change ratio is less than the preset change ratio, the early warning module determines to send the early warning information, including:

[0051] The early warning module is further used to obtain a change ratio difference between the carbon dioxide change ratio and the preset change ratio, and determine a warning level when the early warning module sends the early warning information according to the relationship between the change ratio difference and the preset change ratio difference;

[0052] Wherein, the early warning module is configured with a first preset change ratio difference and a second preset change ratio difference, and the first preset change ratio difference is smaller than the second preset change ratio difference;

[0053] When the change ratio difference is less than or equal to the first preset change ratio difference, the warning module determines that the warning level is B1;

[0054] When the change ratio difference is greater than the first preset change ratio difference, and the change ratio difference is less than or equal to the second preset change ratio difference, the warning module determines that the warning level is B2;

[0055] When the change ratio is greater than the second preset change ratio difference, the warning module determines that the warning level is B3;

[0056] Moreover, B1<B2<B3.

[0057] Compared with the prior art, the beneficial effect of the present invention is that the setting of the planting module allows plants to grow in an environment with a suitable matrix, which provides good root support and nutrient supply for vegetable plants, is conducive to their growth and development, and effectively solves the problem that vegetable plants cannot grow and develop due to insufficient soil fertility and terrain restrictions. The setting of ventilation windows and ventilation fans effectively solves the problem of gas circulation inside the greenhouse, maintains good air circulation, helps to reduce humidity and stabilize temperature, thereby providing a more comfortable growth environment for plants. Secondly, the environmental detection module provides real-time monitoring capabilities, which can accurately and timely obtain key environmental information such as light intensity, carbon dioxide content, humidity and temperature inside the greenhouse. The continuous monitoring of these data provides a reliable basis for subsequent intelligent control, so that the control module can adjust the opening angle of the ventilation window and the operating power of the ventilation fan according to actual conditions to achieve accurate control and adjustment of the internal environment of the greenhouse, so that the plants are in the most suitable growth state. Finally, the introduction of the early warning module enables the system to have the ability to respond to abnormal situations in a timely manner. Through the preset carbon dioxide change ratio, the early warning module can monitor the changes in carbon dioxide concentration inside the greenhouse and send early warning information when abnormal conditions occur, so that timely measures can be taken to adjust and deal with them. This early warning mechanism effectively prevents problems that may be encountered during the growth of vegetable plants, improves the stability and reliability of the planting system, and ensures the normal growth of vegetable plants and the stability of yield.

[0058] On the other hand, the present application also provides a greenhouse-based vegetable planting method, comprising:

[0059] Setting up planting modules with planting substrates, and determining the number and location of the planting modules based on the planting area of ​​the greenhouse;

[0060] Based on the number and location of the planting modules, ventilation windows are opened, and ventilation fans are arranged inside the greenhouse;

[0061] Real-time detection of the internal environmental information of the greenhouse, the environmental information including: light intensity, carbon dioxide content, humidity and temperature;

[0062] controlling the opening angle of the ventilation window and / or the operating power of the ventilation fan according to the environmental information;

[0063] Whether to send an early warning message is determined based on the relationship between the carbon dioxide change ratio within the preset time period and the preset change ratio.

[0064] It is understandable that the greenhouse-based vegetable planting system and method of the present invention have the same beneficial effects and will not be described in detail. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0066] Figure 1 A functional block diagram of a greenhouse-based vegetable planting system provided by an embodiment of the present invention;

[0067] Figure 2 A flowchart of a greenhouse-based vegetable planting method provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0068] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features described in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0069] Greenhouse vegetable cultivation, as an agricultural technology, uses the controlled environment (including temperature, humidity and light) constructed by greenhouses to cultivate vegetables. This method can not only effectively extend the growing season, but also provide protection for crops from adverse weather conditions, thereby ensuring the stability and efficiency of vegetable production, thus meeting the market's urgent demand for fresh vegetables.

[0070] However, although greenhouse vegetable cultivation technology has achieved remarkable results in improving vegetable yield and quality, it still faces many challenges in the actual production process. Among them, insufficient soil fertility and limited terrain conditions are two major problems, which pose a considerable challenge to greenhouse vegetable cultivation in ensuring the supply of fresh vegetables. Soil fertility not only affects the growth rate and yield of vegetables, but is also directly related to the quality and nutritional value of vegetables. However, in some areas, due to long-term overcultivation and lack of scientific soil management, soil fertility has gradually declined, resulting in slow growth of vegetables, reduced yield, and even various diseases and insect pests. Secondly, in some areas, due to complex terrain and undulating terrain, greenhouse construction and management have brought many inconveniences. For example, in mountainous or hilly areas, due to the large slope, greenhouse construction needs to overcome terrain differences to ensure the stability and safety of the greenhouse. At the same time, in plain areas, although the terrain is relatively flat, drainage problems cannot be ignored.

[0071] In view of this, the present invention proposes a greenhouse-based vegetable planting system and method, aiming to solve the problems in current technology of slow growth of greenhouse vegetables, low yield and difficult greenhouse construction due to soil fertility and terrain factors.

[0072] like Figure 1 As shown, in some embodiments of the present application, this embodiment provides a vegetable planting system based on a greenhouse, including: a planting module, a ventilation window, a ventilation fan, an environmental detection module, a control module and an early warning module. There are several planting modules, and the several planting modules are respectively arranged inside the greenhouse, wherein the planting module is provided with a substrate for planting plants. There are several ventilation windows and ventilation fans, respectively, and the ventilation windows and ventilation fans are arranged relatively, the ventilation windows are embedded in the outer wall of the greenhouse between two adjacent planting modules, and the ventilation windows are used to guide the internal gas of the greenhouse when they are opened, and the ventilation fans are fixedly connected to the inner wall of the greenhouse, and are used to guide the internal gas of the greenhouse when the ventilation fans are opened. The environmental detection module is arranged inside the greenhouse, and the environmental detection module is used to detect the internal environmental information of the greenhouse, and the environmental information includes: light intensity, carbon dioxide content, humidity and temperature. The control module is electrically connected to the ventilation window, the ventilation fan and the environmental detection module respectively, and the control module is used to control the opening angle of the ventilation window and / or the operating power of the ventilation fan according to the environmental information. The early warning module is electrically connected to the environmental detection module. The early warning module is used to determine whether to send an early warning message based on the relationship between the carbon dioxide change ratio within a preset time period and a preset change ratio. When the carbon dioxide change ratio is less than the preset change ratio, the early warning module determines to send an early warning message.

[0073] Specifically, the setting of the planting module provides a good growth environment for the plants, and the selection and management of the planting substrate are crucial to the growth and development of the plants. By setting up multiple planting modules in the greenhouse, the planting and management of different vegetable varieties can be achieved, thereby improving the flexibility and adaptability of the planting system. Secondly, the setting of ventilation windows and ventilation fans ensures the circulation and circulation of air inside the greenhouse, and effectively regulates the temperature, humidity and carbon dioxide concentration inside the greenhouse. The ventilation windows are located on the outer wall of the greenhouse between adjacent planting modules. When the ventilation windows are opened, they help to discharge the heat and moisture inside the greenhouse and maintain good air circulation; while the ventilation fans are fixedly connected to the inner wall of the greenhouse and can be opened when needed to further promote the flow of gas inside the greenhouse and maintain a good gas balance. The environmental detection module, as the core component of the system, can monitor key environmental information such as light intensity, carbon dioxide content, humidity and temperature inside the greenhouse in real time. The continuous monitoring of these data provides data support for subsequent intelligent control and lays the foundation for the intelligent management of the system. The control module intelligently controls the opening angle of the ventilation window and the operating power of the ventilation fan according to the data collected by the environmental detection module. By adjusting the working status of the ventilation windows and ventilation fans, the control module can respond to changes in the greenhouse environment in a timely manner, maintain good growth conditions, and improve the growth efficiency and yield of vegetables. Finally, the early warning module can monitor the changes in carbon dioxide concentration inside the greenhouse through the preset carbon dioxide change ratio, and send early warning information when abnormal conditions occur, helping farmers to discover and deal with problems in a timely manner and ensure the growth and yield of vegetables.

[0074] In some embodiments of the present application, the environment detection module includes: a light detection unit, a carbon dioxide detection unit, a humidity detection unit, a temperature detection unit and a recording unit. The light detection unit is arranged inside the greenhouse, and the light detection unit is used to detect the light intensity irradiated on the plants inside the greenhouse. The carbon dioxide detection unit, the humidity detection unit and the temperature detection unit are respectively arranged inside the greenhouse, the carbon dioxide detection unit is used to detect the internal carbon dioxide concentration of the greenhouse, the humidity detection unit is used to detect the real-time humidity inside the greenhouse, and the temperature detection unit is used to detect the real-time temperature inside the greenhouse in real time. The recording unit is configured with a time recording subunit, and the recording unit is electrically connected to the light detection unit, the carbon dioxide detection unit, the humidity detection unit and the temperature detection unit respectively, and the recording unit is used to record the light intensity irradiated on the plants inside the greenhouse, the carbon dioxide concentration, the real-time humidity and the real-time temperature inside the greenhouse in real time, and mark the real-time recording time.

[0075] Specifically, by integrating the light detection unit, the carbon dioxide detection unit, the humidity detection unit, the temperature detection unit and the recording unit, the comprehensive monitoring and recording of the internal environment of the greenhouse is realized. The light detection unit is located inside the greenhouse. By using devices such as photosensitive elements or photoelectric sensors, it can accurately detect the light intensity irradiated on the plants inside the greenhouse and provide the necessary light energy for photosynthesis. The carbon dioxide detection unit, the humidity detection unit and the temperature detection unit are respectively arranged inside the greenhouse. Through the corresponding sensors, the key environmental parameters such as the carbon dioxide concentration, humidity and temperature inside the greenhouse are detected in real time, providing accurate environmental monitoring for plant growth. Secondly, the recording unit is responsible for collecting and recording the detected environmental data. It is equipped with a time recording subunit, which can mark the time of real-time recording. Through the electrical connection with each detection unit, the recording unit can obtain data such as light intensity, carbon dioxide concentration, humidity and temperature in real time and record them. These real-time recorded environmental data can provide an important basis for subsequent data analysis, management and adjustment, help farmers better understand the changing trend of the internal environment of the greenhouse, adjust planting strategies and management measures in time, and improve the growth efficiency and yield of vegetables.

[0076] It is understandable that through diversified detection units and recording units, comprehensive monitoring, real-time recording and precise management of the internal environment of the greenhouse are achieved, providing important support and guarantee for the healthy growth of vegetables.

[0077] In some embodiments of the present application, the control module includes: a collection unit, an analysis unit and a central control unit. The collection unit is electrically connected to the recording unit, and the collection unit is used to collect the light intensity irradiated on the plants inside the greenhouse at each recording time, as well as the carbon dioxide concentration, real-time humidity and real-time temperature inside the greenhouse. The analysis unit is connected to the collection unit, and the analysis unit is used to analyze the internal standard carbon dioxide concentration of the greenhouse based on the light intensity, real-time humidity and real-time temperature. The central control unit is electrically connected to the collection unit, the analysis unit, the ventilation window and the ventilation fan, respectively, and the central control unit is used to determine the opening angle of the ventilation window and / or the operating power of the ventilation fan based on the relationship between the carbon dioxide concentration inside the greenhouse and the standard carbon dioxide concentration.

[0078] Specifically, the acquisition unit is electrically connected to the recording unit and is responsible for real-time acquisition of key environmental data such as light intensity, carbon dioxide concentration, humidity and temperature during the recording time. These data are transmitted to the analysis unit through the acquisition unit for further processing. Secondly, the analysis unit is connected to the acquisition unit and analyzes the standard carbon dioxide concentration inside the greenhouse based on the collected data such as light intensity, real-time humidity and real-time temperature. By analyzing the current environmental conditions, the analysis unit can calculate the standard carbon dioxide concentration inside the greenhouse, providing an important reference for subsequent control decisions. Finally, the central control unit is electrically connected to the acquisition unit, the analysis unit, the ventilation window and the ventilation fan respectively. As the core part of the control module, the central control unit intelligently determines the opening angle of the ventilation window and / or the operating power of the ventilation fan according to the relationship between the actual carbon dioxide concentration inside the greenhouse and the standard carbon dioxide concentration. By adjusting the working status of the ventilation window and the ventilation fan, the central control unit can respond to changes in the internal environment of the greenhouse in a timely manner, maintain good growth conditions, and improve the growth efficiency and yield of vegetables.

[0079] It is understandable that the acquisition unit enables the system to collect key environmental data such as light intensity, carbon dioxide concentration, humidity and temperature inside the greenhouse in real time and record them through electrical connection with the recording unit. The continuous collection of these data provides necessary data support for subsequent analysis and decision-making. Secondly, the connection between the analysis unit and the acquisition unit realizes the intelligent analysis of the standard carbon dioxide concentration inside the greenhouse. By analyzing factors such as light intensity, real-time humidity and real-time temperature, the analysis unit can accurately calculate the standard carbon dioxide concentration inside the greenhouse, providing an important reference for subsequent environmental regulation. Finally, the connection between the central control unit and the acquisition unit, the analysis unit, the ventilation window and the ventilation fan enables the system to intelligently determine the opening angle of the ventilation window and / or the operating power of the ventilation fan according to the relationship between the actual carbon dioxide concentration and the standard carbon dioxide concentration. Such an intelligent control mechanism can effectively adjust the internal environment of the greenhouse, maintain suitable growth conditions, and promote the healthy growth and development of vegetables.

[0080] In some embodiments of the present application, when the analysis unit is used to analyze the internal standard carbon dioxide concentration of the greenhouse according to the light intensity, real-time humidity and real-time temperature, the analysis unit is configured with a Farquhar model. The analysis unit is also used to obtain the internal standard carbon dioxide concentration of the greenhouse according to the light intensity, real-time humidity and real-time temperature and the Farquhar model.

[0081] Specifically, the Farquhar model, as a classic mathematical model of photosynthesis, takes into account the dependence of photosynthesis rate on light, temperature and carbon dioxide concentration. By combining environmental parameters such as light intensity, real-time humidity and real-time temperature with the Farquhar model, the analysis unit can accurately predict the standard carbon dioxide concentration inside the greenhouse. The advantage of this method is that it is based on the scientific principles of plant physiology and photosynthesis, and can more accurately evaluate the environmental conditions inside the greenhouse, providing growers with a scientific basis to help them make more accurate decisions.

[0082] It can be understood that by using the Farquhar model, the analysis unit can comprehensively consider the effects of factors such as light, humidity and temperature on plant photosynthesis, thereby more accurately estimating the standard carbon dioxide concentration inside the greenhouse. This precise analysis helps growers better understand the changing trends of the greenhouse environment and adjust planting strategies and management measures in a timely manner to improve the growth efficiency and yield of vegetables.

[0083] In some embodiments of the present application, when the central control unit is used to determine the opening angle of the ventilation window and / or the operating power of the ventilation fan according to the relationship between the carbon dioxide concentration inside the greenhouse and the standard carbon dioxide concentration, the central control unit is also used to determine whether to open the ventilation window and / or the ventilation fan according to the relationship between the carbon dioxide concentration and the standard carbon dioxide concentration: when the carbon dioxide concentration is lower than or equal to the standard carbon dioxide concentration, the central control unit determines not to open the ventilation window and / or the ventilation fan. When the carbon dioxide concentration is higher than the standard carbon dioxide concentration, the central control unit determines to open the ventilation window and / or the ventilation fan, and determines that the ventilation window and / or the ventilation fan are opened according to the ratio between the carbon dioxide concentration and the standard carbon dioxide concentration.

[0084] Specifically, by real-time monitoring of the carbon dioxide concentration inside the greenhouse, the central control unit can determine whether the current environment is suitable for plant growth based on the pre-set standard concentration. When the carbon dioxide concentration is lower than or equal to the standard concentration, the central control unit will intelligently decide not to open the ventilation window and / or ventilation fan to avoid unnecessary gas loss and maintain a stable environment inside the greenhouse. When the carbon dioxide concentration is higher than the standard concentration, the central control unit will immediately start the ventilation window and / or ventilation fan to timely adjust the air circulation inside the greenhouse, promote the discharge of carbon dioxide, and maintain good growth conditions. This intelligent ventilation management mechanism enables the greenhouse vegetable planting system to have a higher degree of automation and intelligence. By flexibly controlling the opening and closing of the ventilation window and / or ventilation fan according to actual conditions, the system can more effectively adjust the internal environment of the greenhouse to meet the needs of different plant growth stages. Moreover, the ratio between the carbon dioxide concentration and the standard concentration is used to determine whether to open the ventilation window or the ventilation fan, which further improves the accuracy and energy efficiency of the system. The application of this intelligent control technology can not only improve the growth efficiency and yield of vegetables, but also reduce energy consumption and labor costs, and promote the sustainable development of greenhouse planting.

[0085] In some embodiments of the present application, when the central control unit determines that the ventilation window and / or the ventilation fan are opened according to the concentration ratio between the carbon dioxide concentration and the standard carbon dioxide concentration, it includes: the central control unit is configured with a first preset concentration ratio and a second preset concentration ratio, and the first preset concentration ratio is less than the second preset concentration ratio. The central control unit is used to determine that the ventilation window and / or the ventilation fan are opened according to the relationship between the concentration ratio and each preset concentration ratio, wherein: when the concentration ratio is lower than or equal to the first preset concentration ratio, the central control unit determines to open the ventilation window to guide the gas inside the greenhouse.

[0086] Specifically, when the central control unit determines to open the ventilation window to guide the gas inside the greenhouse, it includes: the central control unit is also used to obtain the concentration ratio difference between the concentration ratio and the first preset concentration ratio, and determine the opening angle of the ventilation window according to the relationship between the concentration ratio difference and the preset concentration ratio difference. Among them, the central control unit is also configured to use the first preset concentration ratio difference and the second preset concentration ratio difference, and the first preset concentration ratio difference is lower than the second preset concentration ratio difference: when the concentration ratio difference is lower than or equal to the first preset concentration ratio difference, the central control unit determines that the opening angle of the ventilation window is M1. When the concentration ratio difference is higher than the first preset concentration ratio difference, and the concentration ratio difference is lower than or higher than the second preset concentration ratio difference, the central control unit determines that the opening angle of the ventilation window is M2. When the concentration ratio difference is higher than the second preset concentration ratio difference, the central control unit determines that the opening angle of the ventilation window is M3. And, M1<M2<M3.

[0087] It is understandable that the central control unit will intelligently associate the change in carbon dioxide concentration inside the greenhouse with the opening angle of the ventilation window according to the preset concentration ratio difference and the corresponding opening angle level. When the concentration ratio is lower than or equal to the first preset concentration ratio, the system will start the diversion operation of the ventilation window, and promote the circulation of fresh air inside the greenhouse by opening the ventilation window appropriately, thereby effectively adjusting the carbon dioxide concentration. This automated control method can minimize energy waste and manual intervention while ensuring the comfort of the plant growth environment. Secondly, the central control unit flexibly determines the opening angle of the ventilation window according to the relationship between the concentration ratio difference and the preset concentration ratio difference. Through the preset three opening angle levels, the system can intelligently adjust the opening degree of the ventilation window according to the actual carbon dioxide concentration changes to meet the air circulation needs of plants at different growth stages. This intelligent control strategy effectively improves the adaptability and stability of the system, and helps to maintain the stability and balance of the gas environment inside the greenhouse. Finally, the settings of the preset different opening angle levels M1, M2, and M3 reflect the different response degrees of the system to changes in carbon dioxide concentration. This differentiated control strategy enables the system to take appropriate ventilation measures according to different carbon dioxide concentrations to maximize the quality of the growth environment inside the greenhouse.

[0088] In some embodiments of the present application, when the concentration ratio is higher than a first preset concentration ratio and the concentration ratio is lower than or equal to a second preset concentration ratio, the central control unit determines to turn on the ventilation fan to guide the gas inside the greenhouse.

[0089] Specifically, when the central control unit turns on the ventilation fan to guide the gas inside the greenhouse, it includes: the central control unit is used to obtain the concentration ratio difference between the concentration ratio and the second preset concentration ratio, and the central control unit is also used to determine the operating power of the ventilation fan according to the relationship between the concentration ratio difference and the preset concentration ratio difference. Among them, the central control unit is also configured to use the first preset concentration ratio difference and the second preset concentration ratio difference, and the first preset concentration ratio difference is lower than the second preset concentration ratio difference. When the concentration ratio difference is lower than or equal to the first preset concentration ratio difference, the central control unit determines that the operating power of the ventilation fan is N1. When the concentration ratio difference is higher than the first preset concentration ratio difference, and the concentration ratio difference is lower than or higher than the second preset concentration ratio difference, the central control unit determines that the operating power of the ventilation fan is N2. When the concentration ratio difference is higher than the second preset concentration ratio difference, the central control unit determines that the operating power of the ventilation fan is N3. And, N1<N2<N3.

[0090] It is understandable that when the concentration ratio is higher than the first preset concentration ratio but lower than or equal to the second preset concentration ratio, the central control unit will intelligently start the ventilation fan to achieve effective diversion of the air inside the greenhouse, thereby maintaining a suitable growth environment. In this way, the system can timely discharge the carbon dioxide gas accumulated in the greenhouse to ensure that the plants can obtain enough fresh air to promote their healthy growth. Secondly, the central control unit intelligently determines the operating power of the ventilation fan according to the concentration ratio difference between the current concentration ratio and the second preset concentration ratio. This refined control mechanism enables the system to flexibly adjust the operating state of the ventilation fan according to the actual changes in the carbon dioxide concentration to meet the air circulation needs of plants at different growth stages. Through the preset multiple operating power levels, the system can more accurately control the operation of the ventilation fan, thereby effectively adjusting the gas environment inside the greenhouse and improving production efficiency and output stability. Finally, by setting the first preset concentration ratio difference and the second preset concentration ratio difference, as well as the corresponding operating power level, the central control unit can achieve flexible control of the operation of the ventilation fan. According to the different concentration ratio differences, the central control unit can intelligently select the appropriate operating power level to ensure a balance between the operating efficiency and energy consumption of the ventilation fan. This intelligent control strategy not only improves the adaptability and stability of the system, but also minimizes energy consumption and contributes to sustainable agricultural production.

[0091] In some embodiments of the present application, when the concentration ratio is higher than a second preset concentration ratio, the central control unit determines to open the ventilation windows and the ventilation fans at the same time to guide the gas inside the greenhouse.

[0092] Specifically, when the central control unit determines to open the ventilation windows and the ventilation fan at the same time to guide the gas inside the greenhouse, it includes: the central control unit is also used to obtain the ratio difference between the concentration ratio and the second preset concentration ratio, the central control unit is used to determine the operating power of the ventilation fan according to the second preset concentration ratio, and determine the opening angle of the ventilation window according to the relationship between the ratio difference and the first preset concentration ratio.

[0093] It is understandable that when the central control unit determines to open the ventilation window and the ventilation fan at the same time, the system will intelligently adjust the opening angle of the ventilation window and the operating power of the ventilation fan according to the ratio difference between the current concentration ratio and the second preset concentration ratio, so as to achieve effective diversion of the gas inside the greenhouse. First, the central control unit will obtain the ratio difference between the current concentration ratio and the second preset concentration ratio, which reflects the degree of deviation of the carbon dioxide concentration inside the greenhouse from the preset value. Then, the central control unit determines the operating power of the ventilation fan according to the second preset concentration ratio to ensure that the ventilation fan can effectively introduce a large amount of fresh air into the greenhouse to reduce the carbon dioxide concentration. At the same time, the central control unit also intelligently determines the opening angle of the ventilation window according to the relationship between the ratio difference and the first preset concentration ratio to further promote the circulation and circulation of air inside the greenhouse. Thereby, the gas environment inside the greenhouse can be more effectively adjusted to maintain suitable growth conditions for vegetable plants.

[0094] It can be seen that by intelligently regulating the opening and closing of ventilation windows and ventilation fans according to the relationship between the real-time carbon dioxide concentration and the preset standard concentration, the central control unit can effectively maintain the stability of the gas environment inside the greenhouse. This refined control can prevent the adverse effects of excessive or low carbon dioxide concentration on plant growth, thereby ensuring the healthy growth of vegetable plants in a suitable gas environment. Secondly, the central control unit takes corresponding ventilation measures according to different carbon dioxide concentrations, which can timely discharge the harmful gases accumulated inside the greenhouse, provide plants with sufficient fresh air, and promote their normal growth and metabolic activities. This directional ventilation strategy helps to improve the growth efficiency and yield stability of plants, and provides an important guarantee for the high-quality production of crops. In addition, through the preset different opening angle levels and operating power levels, the central control unit can flexibly adjust the opening degree and operating status of the ventilation windows and ventilation fans according to actual conditions, thereby minimizing energy consumption and improving the energy efficiency and environmental friendliness of the central control unit. This intelligent energy management method helps to reduce the operating cost of greenhouse production and improve economic benefits.

[0095] In some embodiments of the present application, when the carbon dioxide change ratio is less than the preset change ratio, the early warning module determines to send the early warning information, including: the early warning module is also used to obtain the change ratio difference between the carbon dioxide change ratio and the preset change ratio, and determine the early warning level when the early warning module sends the early warning information according to the relationship between the change ratio difference and the preset change ratio difference. Wherein, the early warning module is configured with a first preset change ratio difference and a second preset change ratio difference, and the first preset change ratio difference is less than the second preset change ratio difference: when the change ratio difference is less than or equal to the first preset change ratio difference, the early warning module determines the early warning level to be B1. When the change ratio difference is greater than the first preset change ratio difference, and the change ratio difference is less than or equal to the second preset change ratio difference, the early warning module determines the early warning level to be B2. When the change ratio is greater than the second preset change ratio difference, the early warning module determines the early warning level to be B3. And, B1<B2<B3.

[0096] Specifically, by timely monitoring the carbon dioxide change ratio and setting the corresponding warning level according to the preset change ratio, the warning module can send alarm information to the management personnel in time when the carbon dioxide concentration fluctuates or trends abnormally. The implementation of this warning mechanism can effectively prevent or reduce the occurrence of plant growth problems or other unexpected situations caused by abnormal carbon dioxide concentration, which helps to improve the production efficiency and plant health status inside the greenhouse. In addition, the setting of the warning module also takes into account the hierarchical setting of the warning level, that is, the level of the warning level is determined according to the size of the change ratio, so that the management personnel can take corresponding measures according to the different warning levels. For example, when the warning level is B1, only slight adjustments or monitoring may be required; when the warning level is upgraded to B2 or B3, more urgent and active measures may need to be taken, such as increasing ventilation, adjusting temperature and humidity, etc., to ensure the stability of the internal environment of the greenhouse and the healthy growth of plants.

[0097] It is understandable that this early warning mechanism based on changes in carbon dioxide concentration not only helps to improve the intelligent level of greenhouse management, but also reduces the cost and risk of manual intervention and improves management efficiency. Through the intelligent monitoring and timely warning of the early warning module, greenhouse managers can understand the environmental conditions inside the greenhouse more timely and accurately, thereby better ensuring the needs of plant growth and maximizing yield and quality.

[0098] In the above embodiment, the setting of the planting module enables the plants to grow in an environment with a suitable matrix, which provides good root support and nutrient supply for vegetable plants, is conducive to their growth and development, and effectively solves the problem that vegetable plants cannot grow and develop due to insufficient soil fertility and terrain restrictions. The setting of the ventilation window and the ventilation fan effectively solves the problem of gas circulation inside the greenhouse, maintains good air circulation, helps to reduce humidity and stabilize temperature, thereby providing a more comfortable growth environment for plants. Secondly, the environmental detection module provides real-time monitoring capabilities, which can accurately and timely obtain key environmental information such as light intensity, carbon dioxide content, humidity and temperature inside the greenhouse. The continuous monitoring of these data provides a reliable basis for subsequent intelligent control, so that the control module can adjust the opening angle of the ventilation window and the operating power of the ventilation fan according to actual conditions to achieve accurate control and adjustment of the internal environment of the greenhouse, so that the plants are in the most suitable growth state. Finally, the introduction of the early warning module enables the system to have the ability to respond to abnormal situations in a timely manner. Through the preset carbon dioxide change ratio, the early warning module can monitor the changes in the carbon dioxide concentration inside the greenhouse, and send early warning information when abnormal situations occur, so as to take timely measures to adjust and deal with them. This early warning mechanism effectively prevents problems that may be encountered during the growth of vegetable plants, improves the stability and reliability of the planting system, and ensures the normal growth and yield stability of vegetable plants.

[0099] In another preferred embodiment based on the above embodiment, Figure 2 As shown, this embodiment provides a greenhouse-based vegetable planting method, comprising:

[0100] Step S100: setting up planting modules with planting plant substrates, and determining the number and setting positions of the planting modules based on the planting area of ​​the greenhouse.

[0101] Step S200: based on the number and location of the planting modules, ventilation windows are opened and ventilation fans are installed inside the greenhouse.

[0102] Step S300: Real-time detection of the internal environmental information of the greenhouse, the environmental information including: light intensity, carbon dioxide content, humidity and temperature.

[0103] Step S400: controlling the opening angle of the ventilation window and / or the operating power of the ventilation fan according to the environmental information.

[0104] Step S500: Determine whether to send an early warning message based on the relationship between the carbon dioxide change ratio within a preset period of time and a preset change ratio.

[0105] It is understandable that the greenhouse-based vegetable planting system and method of the present invention have the same beneficial effects and will not be described in detail.

[0106] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0107] The present application is described with reference to flowcharts and / or block diagrams of methods, devices (systems) and computer program products according to embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0108] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0109] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process in the computer or other programmable device. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0110] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A greenhouse-based vegetable planting system, characterized in that: include: There are a plurality of planting modules, and the plurality of planting modules are respectively arranged inside the greenhouse, wherein the planting modules are provided with a substrate for planting plants; A plurality of ventilation windows and ventilation fans are respectively provided, and the plurality of ventilation windows and ventilation fans are arranged opposite to each other, the ventilation windows are embedded in the outer wall of the greenhouse between two adjacent planting modules, and are used to guide the internal air of the greenhouse when the ventilation windows are opened, and the ventilation fans are fixedly connected to the inner wall of the greenhouse, and are used to guide the internal air of the greenhouse when the ventilation fans are opened; An environment detection module is arranged inside the greenhouse, and is used to detect internal environment information of the greenhouse, wherein the environment information includes: light intensity, carbon dioxide content, humidity and temperature; A control module, electrically connected to the ventilation window, the ventilation fan and the environment detection module, respectively, and the control module is used to control the opening angle of the ventilation window and / or the operating power of the ventilation fan according to the environmental information; An early warning module, electrically connected to the environment detection module, and configured to determine whether to send an early warning message based on a relationship between a carbon dioxide change ratio within a preset period of time and a preset change ratio; Wherein, when the carbon dioxide change ratio is less than the preset change ratio, the early warning module determines to send the early warning information.

2. The greenhouse-based vegetable planting system according to claim 1, characterized in that: The environment detection module comprises: A light detection unit is arranged inside the greenhouse, and is used to detect the light intensity irradiated on the plants inside the greenhouse; A carbon dioxide detection unit, a humidity detection unit and a temperature detection unit are respectively arranged inside the greenhouse, the carbon dioxide detection unit is used to detect the carbon dioxide concentration inside the greenhouse, the humidity detection unit is used to detect the real-time humidity inside the greenhouse, and the temperature detection unit is used to detect the real-time temperature inside the greenhouse in real time; The recording unit is provided with a time recording subunit, and the recording unit is electrically connected to the light detection unit, the carbon dioxide detection unit, the humidity detection unit and the temperature detection unit respectively. The recording unit is used to record in real time the light intensity irradiated on the plants inside the greenhouse, the carbon dioxide concentration, the real-time humidity and the real-time temperature inside the greenhouse, and mark the real-time recording time.

3. The greenhouse-based vegetable planting system according to claim 2, characterized in that: The control module comprises: A collection unit, electrically connected to the recording unit, for collecting the light intensity irradiated on the plants inside the greenhouse at each recording time, as well as the carbon dioxide concentration, real-time humidity and real-time temperature inside the greenhouse; An analysis unit connected to the collection unit, the analysis unit being used to analyze the internal standard carbon dioxide concentration of the greenhouse according to the light intensity, real-time humidity and real-time temperature; The central control unit is electrically connected to the collection unit, the analysis unit, the ventilation window and the ventilation fan respectively. The central control unit is used to determine the opening angle of the ventilation window and / or the operating power of the ventilation fan according to the relationship between the carbon dioxide concentration inside the greenhouse and the standard carbon dioxide concentration.

4. The greenhouse-based vegetable planting system according to claim 3, characterized in that: When the analysis unit is used to analyze the internal standard carbon dioxide concentration of the greenhouse according to the light intensity, real-time humidity and real-time temperature, it includes: The analysis unit is configured with a Farquhar model; The analysis unit is also used to obtain the internal standard carbon dioxide concentration of the greenhouse according to the light intensity, real-time humidity and real-time temperature and the Farquhar model.

5. The greenhouse-based vegetable planting system according to claim 4, characterized in that: The central control unit is used to determine the opening angle of the ventilation window and / or the operating power of the ventilation fan according to the relationship between the carbon dioxide concentration inside the greenhouse and the standard carbon dioxide concentration, including: The central control unit is also used to determine whether to open the ventilation window and / or the ventilation fan according to the relationship between the carbon dioxide concentration and the standard carbon dioxide concentration; When the carbon dioxide concentration is lower than or equal to the standard carbon dioxide concentration, the central control unit determines not to open the ventilation window and / or the ventilation fan; When the carbon dioxide concentration is higher than the standard carbon dioxide concentration, the central control unit determines to open the ventilation window and / or ventilation fan, and determines whether to open the ventilation window and / or ventilation fan based on the ratio between the carbon dioxide concentration and the standard carbon dioxide concentration.

6. The greenhouse-based vegetable planting system according to claim 5, characterized in that: When the central control unit determines that the ventilation window and / or the ventilation fan to be opened is opened according to the concentration ratio between the carbon dioxide concentration and the standard carbon dioxide concentration, the central control unit includes: The central control unit is configured with a first preset concentration ratio and a second preset concentration ratio, and the first preset concentration ratio is smaller than the second preset concentration ratio; The central control unit is used to determine whether to open the ventilation window and / or the ventilation fan according to the relationship between the concentration ratio and each preset concentration ratio, wherein: When the concentration ratio is lower than or equal to the first preset concentration ratio, the central control unit determines to open the ventilation window to guide the gas inside the greenhouse; When the concentration ratio is higher than the first preset concentration ratio and the concentration ratio is lower than or equal to the second preset concentration ratio, the central control unit determines to turn on the ventilation fan to guide the gas inside the greenhouse; When the concentration ratio is higher than the second preset concentration ratio, the central control unit determines to turn on the ventilation window and the ventilation fan at the same time to guide the gas inside the greenhouse; When the central control unit determines to open the ventilation window and the ventilation fan at the same time to guide the gas inside the greenhouse, it includes: The central control unit is also used to obtain the ratio difference between the concentration ratio and the second preset concentration ratio. The central control unit is used to determine the operating power of the ventilation fan according to the second preset concentration ratio, and determine the opening angle of the ventilation window according to the relationship between the ratio difference and the first preset concentration ratio.

7. The greenhouse-based vegetable planting system according to claim 6, characterized in that: When the central control unit determines to open the ventilation window to guide the gas inside the greenhouse, it includes: The central control unit is further used to obtain a concentration ratio difference between the concentration ratio and the first preset concentration ratio, and determine the opening angle of the ventilation window according to the relationship between the concentration ratio difference and the preset concentration ratio difference; Wherein, the central control unit is further configured with a first preset concentration ratio difference and a second preset concentration ratio difference, and the first preset concentration ratio difference is lower than the second preset concentration ratio difference; When the concentration ratio difference is lower than or equal to the first preset concentration ratio difference, the central control unit determines that the opening angle of the ventilation window is M1; When the concentration ratio difference is higher than the first preset concentration ratio difference, and the concentration ratio difference is lower than or higher than the second preset concentration ratio difference, the central control unit determines that the opening angle of the ventilation window is M2; When the concentration ratio difference is higher than the second preset concentration ratio difference, the central control unit determines that the opening angle of the ventilation window is M3; Moreover, M1<M2<M3.

8. The greenhouse-based vegetable planting system according to claim 6, characterized in that: When the central control unit turns on the ventilation fan to guide the gas inside the greenhouse, it includes: The central control unit is used to obtain a concentration ratio difference between the concentration ratio and the second preset concentration ratio, and the central control unit is also used to determine the operating power of the ventilation fan according to the relationship between the concentration ratio difference and the preset concentration ratio difference; Wherein, the central control unit is further configured with a first preset concentration ratio difference and a second preset concentration ratio difference, and the first preset concentration ratio difference is lower than the second preset concentration ratio difference; When the concentration ratio difference is lower than or equal to the first preset concentration ratio difference, the central control unit determines that the operating power of the ventilation fan is N1; When the concentration ratio difference is higher than the first preset concentration ratio difference, and the concentration ratio difference is lower than or higher than the second preset concentration ratio difference, the central control unit determines that the operating power of the ventilation fan is N2; When the concentration ratio difference is higher than the second preset concentration ratio difference, the central control unit determines that the operating power of the ventilation fan is N3; Moreover, N1<N2<N3.

9. The greenhouse-based vegetable planting system according to claim 1, characterized in that: When the carbon dioxide change ratio is less than the preset change ratio, the early warning module determines to send the early warning information, including: The early warning module is further used to obtain a change ratio difference between the carbon dioxide change ratio and the preset change ratio, and determine a warning level when the early warning module sends the early warning information according to the relationship between the change ratio difference and the preset change ratio difference; Wherein, the early warning module is configured with a first preset change ratio difference and a second preset change ratio difference, and the first preset change ratio difference is smaller than the second preset change ratio difference; When the change ratio difference is less than or equal to the first preset change ratio difference, the warning module determines that the warning level is B1; When the change ratio difference is greater than the first preset change ratio difference, and the change ratio difference is less than or equal to the second preset change ratio difference, the warning module determines that the warning level is B2; When the change ratio is greater than the second preset change ratio difference, the warning module determines that the warning level is B3; Moreover, B1<B2<B3.

10. A greenhouse-based vegetable planting method, applicable to a greenhouse-based vegetable planting system as claimed in any one of claims 1 to 9, characterized in that: include: Setting up planting modules with planting substrates, and determining the number and location of the planting modules based on the planting area of ​​the greenhouse; Based on the number and location of the planting modules, ventilation windows are opened, and ventilation fans are arranged inside the greenhouse; Real-time detection of the internal environmental information of the greenhouse, the environmental information including: light intensity, carbon dioxide content, humidity and temperature; controlling the opening angle of the ventilation window and / or the operating power of the ventilation fan according to the environmental information; Whether to send an early warning message is determined based on the relationship between the carbon dioxide change ratio within the preset time period and the preset change ratio.

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