Air conditioning method and system for plant flower greenhouse

Abstract

The invention relates to the technical field of greenhouse ventilation control, and discloses an air conditioning method and system for a plant flower greenhouse, and the method comprises the steps: obtaining the plant state data of a to-be-monitored plant in a current monitoring region in the plant flower greenhouse, and generating estimated ventilation demand data; acquiring actual ventilation data, and generating ventilation adjustment demand data; according to the current monitoring area, a standby air conditioning outlet is obtained, a current use air conditioning outlet is set, and ventilation regulation output data is generated; and air conditioning equipment is controlled to conduct air conditioning on the current monitoring area through the current use air conditioning outlet according to the ventilation conditioning output data. According to the invention, refined ventilation adjustment is carried out on the selected plants and flowers in the selected area, and the problems of neglect of differential ventilation requirements of different plants and flowers, uneven air circulation and low adjustment refined degree due to overall ventilation and air adjustment of the greenhouse in the prior art are solved.

Description

Technical Field

[0001] The present application relates to the technical field of greenhouse ventilation control, and in particular to an air conditioning method and system for plant and flower greenhouses. Background Art

[0002] Greenhouses are important facilities used in agricultural production to provide a suitable environment for plant growth. In order to ensure the normal growth of plants and flowers in the greenhouse, it is necessary to monitor the temperature, humidity, carbon dioxide concentration and other data in the greenhouse and adjust them in time.

[0003] When monitoring and adjusting, it is very important to adjust the ventilation in the greenhouse. For plant and flower greenhouses, if the ventilation is not smooth, it is very easy to cause the death of plants and flowers, which will lead to great property damage. In the prior art, when air conditioning is performed in the greenhouse, the overall ventilation method is often used, which is prone to ignoring the differentiated ventilation needs of different plants and flowers, uneven air conditioning, uneven air circulation, and low degree of adjustment refinement. Summary of the invention

[0004] Based on this, it is necessary to provide an air conditioning method and system for plant and flower greenhouses that can solve the problem of uneven air conditioning in plant greenhouses due to overall ventilation adjustment, and realize refined ventilation adjustment for plants and flowers in selected areas.

[0005] The technical solution of the present invention is as follows: An air conditioning method for a plant and flower greenhouse, the method comprising: Acquire plant status data of the plants to be supervised in the current monitoring area in the plant and flower greenhouse, and generate estimated ventilation demand data based on the plant status data; Acquiring actual ventilation data of the current monitoring area, and generating ventilation adjustment demand data according to the actual ventilation data and the estimated ventilation demand data; Acquire a backup air conditioning outlet according to the current monitoring area, set a currently used air conditioning outlet from the air conditioning outlets, and generate ventilation and conditioning output data according to the currently used air conditioning outlet and the ventilation and conditioning demand data; The air conditioning device is controlled according to the ventilation adjustment output data to perform air conditioning on the currently monitored area through the currently used air conditioning outlet.

[0006] Optionally, obtaining plant status data of the plants to be supervised in the current monitoring area in the plant and flower greenhouse, and generating estimated ventilation demand data according to the plant status data, includes: Acquire plant status data of the plants to be supervised in the current monitoring area in the plant and flower greenhouse, and extract the current plant pictures and historically stored image data of the plants to be supervised from the plant status data; Determining whether the plant to be supervised is in a sprouting state according to the current plant picture; If the judgment is no, then obtaining the current plant species and planting time of the plant to be supervised, and generating estimated ventilation demand data according to the current plant species and planting time; If the judgment is yes, then obtaining the current plant species of the plant to be supervised, and extracting the current growth characteristics of the plant to be supervised from the current plant picture; Obtaining a plant growth database corresponding to the current plant species, comparing the current growth characteristics with the pre-stored growth characteristics in the plant growth database, and generating an actual growth stage of the plant to be supervised, wherein the actual growth stage corresponds to a pre-stored growth rate; generating initial ventilation requirement data according to the actual growth stage; Generate the actual growth rate of the plant to be supervised in the actual growth stage according to the historically stored image data, and generate a ventilation demand adjustment ratio according to the pre-stored growth rate and the actual growth rate; The initial ventilation demand data is adjusted according to the ventilation demand adjustment ratio to generate estimated ventilation demand data.

[0007] Optionally, generating an actual growth rate of the plant to be supervised in the actual growth stage according to the historically stored image data, and generating a ventilation demand adjustment ratio according to the pre-stored growth rate and the actual growth rate, including: Extracting the historical image data to be analyzed from the historically stored image data according to the length of time occupied by the actual growth stage corresponding to the plant to be supervised; Extracting a historical image data group from the historical image data to be analyzed according to a preset time unit, wherein the number of the historical image data groups is multiple, and each of the historical image data groups includes a historical growth image; Calculating the unit growth rate of each of the historical image data sets, and generating an actual growth rate according to each of the unit growth rates; The ratio of the actual growth rate to the pre-stored growth rate is calculated, and a ventilation demand adjustment ratio is generated.

[0008] Optionally, calculating the unit growth rate of each of the historical image data sets, and generating the actual growth rate according to each of the unit growth rates, comprises: respectively calculating the single growth rates of adjacent historical growth images in each of the historical image data; Setting the average of each of the single growth rates as the unit growth rate of the historical image data; The average of each of the unit growth rates is calculated and the actual growth rate is generated.

[0009] Optionally, adjacent historical growth images in the historical image data are respectively a first growth image and a second growth image; Calculating a single growth rate of a group of adjacent historical growth images in the historical image data, comprising: Extracting the number of leaves in the first growth image, recorded as a first leaf number, and extracting the number of leaves in the second growth image, recorded as a second leaf number; Extracting a first leaf area of ​​the first growth image at a top-view angle and a second leaf area of ​​the second growth image at a top-view angle; extracting a first plant height of the plant in the first growth image and a second plant height of the plant in the second growth image based on a preset length reference; According to the first leaf number, the second leaf number, the first leaf area, the second leaf area, the first plant height, and the second plant height, a single growth rate is generated based on the following formula: ; Among them, Vsr is the single growth rate, r1 is the first proportional coefficient, n2 is the second leaf number, n1 is the first leaf number, r2 is the second proportional coefficient, Scr is the second leaf area, Sar is the first leaf area, r3 is the third proportional coefficient, Hb is the second plant height, and Ha is the first plant height.

[0010] Optionally, acquiring a backup air conditioning outlet according to the current monitoring area, and setting a currently used air conditioning outlet from the air conditioning outlets, comprises: Obtaining an air conditioning planning table in the plant and flower greenhouse, and screening out candidate air conditioning outlets whose working status is idle according to the air conditioning planning table; Obtaining a straight-line distance between the candidate air conditioning outlet and the current monitoring area, eliminating the candidate air conditioning outlets corresponding to a straight-line distance greater than or equal to a preset distance, and generating a candidate air conditioning outlet; Acquire an airflow path between the selected air conditioning outlet and the current monitoring area, and acquire airflow path interference data corresponding to the airflow path, wherein one selected air conditioning outlet corresponds to one airflow path and one airflow path interference data; Extracting an airflow path region in the airflow path from the airflow path interference data, and generating a path region interference factor corresponding to the airflow path region, wherein one airflow path includes at least one airflow path region, and one airflow path region corresponds to one path region interference factor; Generate pathway area ventilation data according to the pathway area interference factor and the real-time ventilation data of each of the airflow pathway areas, wherein one airflow pathway area corresponds to one pathway area ventilation data; Screening out the airflow path areas corresponding to the ventilation data of the path areas beyond the calibration range of the current area from each of the airflow path areas, and recording the airflow flow paths corresponding to the screened airflow path areas as invalid flow paths, wherein one calibration range of the current area corresponds to one airflow path area, and the other paths in each of the airflow flow paths except the invalid flow paths are valid flow paths; generating an airflow loss factor of the effective flow path according to the airflow path interference data; Screening out a target flow path from the effective flow paths according to the air flow loss factor; The selected air conditioning outlet corresponding to the target flow path is set as the currently used air conditioning outlet.

[0011] Optionally, generating a path area interference factor corresponding to the airflow path area according to the airflow path interference data includes: Extracting the path length from the candidate air conditioning outlet to the air flow path area from the air flow path interference data; Extracting the regional obstruction area of ​​the airflow path region from the airflow path interference data; According to the route length and regional obstruction area, the route area interference factor is generated based on the following formula: ; Among them, IFN is the pathway area interference factor, Lsc is the pathway path length, Lsd is the pre-stored standard path length, Sdr is the regional obstruction area, k is the preset airflow diffusion coefficient, and Smin is the area of ​​the selected air conditioning outlet corresponding to the airflow pathway area.

[0012] Optionally, generating the airflow loss factor of the effective flow path according to the airflow path interference data includes: Extracting physical obstacles in the effective flow path according to the airflow path interference data, and generating obstacle obstruction areas according to the physical obstacles; Obtaining a flow obstruction distance between a candidate air conditioning outlet corresponding to the effective flow path and the physical obstruction; Extracting the airflow path area in the effective flow path according to the airflow path interference data, and generating the current area obstruction area according to the extracted airflow path area; Acquire a regional flow distance between a candidate air conditioning outlet corresponding to the effective flow path and an air flow path region in the effective flow path; Acquiring the plant distribution density in the airflow path area of ​​the effective flow path, and generating a plant density influence coefficient according to the plant distribution density; The air flow loss factor is generated based on the following formula: ; Wherein, ALF is the air flow loss factor, N1 is the number of physical obstacles, Lsi is the distance between the ith physical obstacle and the candidate air conditioning outlet corresponding to the effective circulation path, Lmax is the path distance of the effective circulation path, Soi is the obstacle obstruction area of ​​the ith physical obstacle, k is the preset air flow diffusion coefficient, Scm is the area of ​​the candidate air conditioning outlet corresponding to the effective circulation path, N2 is the number of air flow path areas, Lvj is the distance between the jth air flow path area and the candidate air conditioning outlet corresponding to the effective circulation path, is the plant density influence coefficient corresponding to the j-th airflow path area, and Svj is the current regional obstruction area of ​​the j-th airflow path area.

[0013] Optionally, an air conditioning system for a plant and flower greenhouse is also provided, the system comprising: A ventilation demand generation module is used to obtain plant status data of the plants to be supervised in the current monitoring area in the plant and flower greenhouse, and generate estimated ventilation demand data based on the plant status data; A ventilation adjustment generation module, used to obtain actual ventilation data of the current monitoring area, and generate ventilation adjustment demand data according to the actual ventilation data and the estimated ventilation demand data; a ventilation data determination module, configured to obtain a backup air conditioning outlet according to the current monitoring area, set a currently used air conditioning outlet from the air conditioning outlets, and generate ventilation adjustment output data according to the currently used air conditioning outlet and the ventilation adjustment demand data; The ventilation control execution module is used to control the air conditioning equipment to perform air conditioning on the currently monitored area through the currently used air conditioning outlet according to the ventilation adjustment output data.

[0014] Optionally, a computer device is also provided, including a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the above-mentioned air conditioning method for plant and flower greenhouses when executing the computer program.

[0015] Optionally, a computer-readable storage medium is also provided, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the above-mentioned air conditioning method for plant and flower greenhouses are implemented.

[0016] The technical effects achieved by the present invention are as follows: The above-mentioned air conditioning method and system for plant and flower greenhouses obtains plant status data of the plants to be supervised in the current monitoring area in the plant and flower greenhouse, and generates estimated ventilation demand data based on the plant status data; obtains actual ventilation data of the current monitoring area, and generates ventilation regulation demand data based on the actual ventilation data and the estimated ventilation demand data; obtains spare air conditioning outlets according to the current monitoring area, sets the currently used air conditioning outlets from the air conditioning outlets, and generates ventilation regulation output data based on the currently used air conditioning outlets and the ventilation regulation demand data; controls the air conditioning equipment to perform air conditioning on the current monitoring area through the currently used air conditioning outlet according to the ventilation regulation output data. In order to carry out refined management of flowers and other plants planted in a plant and flower greenhouse, the present invention divides the plant and flower greenhouse into regions, monitors each divided region, and realizes refined ventilation according to the growth and status of the plant and flower. The current monitoring region is formed after the region division. By setting the current monitoring region, the refined air conditioning and management of the set region can be realized. When monitoring the current monitoring region, the plant state data of the plants to be supervised in the current monitoring region in the plant and flower greenhouse is first obtained, and the estimated ventilation demand data is generated according to the plant state data. The plant state data is data indicating the growth state of the plants to be supervised at the current moment. Based on the principle that plants in different growth states require different ventilation, after obtaining the estimated ventilation demand data, the estimated ventilation demand data can be generated accordingly. The estimated ventilation demand data is the ventilation data required by the plants to be supervised in the current state. Then, by obtaining the actual ventilation data of the current monitoring region, the actual ventilation data is obtained by monitoring the ventilation conditions in the current monitoring region through a preset sensor, and the actual ventilation data is data indicating the ventilation conditions that the plants to be supervised can actually obtain. Then, ventilation regulation demand data is generated according to the actual ventilation data and the estimated ventilation demand data, and the ventilation regulation demand data is generated based on the difference between the actual ventilation situation and the estimated ventilation situation. Then, a backup air conditioning outlet is obtained according to the current monitoring area, and the backup air conditioning outlet is the currently usable regulating outlet in the plant and flower greenhouse, and then the currently used air conditioning outlet is set from the air conditioning outlets, and the currently used air conditioning outlet is the most suitable regulating outlet selected from the air conditioning outlets for air conditioning the plants to be monitored, and then ventilation regulation output data is generated according to the currently used air conditioning outlet and the ventilation regulation demand data, and finally, according to the ventilation regulation output data, the air conditioning equipment is controlled to perform air conditioning on the current monitoring area through the currently used air conditioning outlet.Therefore, the present invention first estimates the ventilation demand according to the current monitored area and the growth status of the plants to be supervised, then obtains the actual ventilation conditions of the plants to be supervised, and then obtains the air and ventilation data that currently need to be adjusted according to the difference between the two, and then selects the most suitable adjustment air outlet based on the actual usage of the vents in the plant and flower greenhouse, and finally performs air conditioning on the current monitoring area through the selected air conditioning outlet currently in use, thereby achieving refined ventilation adjustment for the selected plants and flowers in the selected area, solving the problems in the prior art of overall ventilation and air conditioning of the greenhouse, which easily lead to ignoring the differentiated ventilation needs of different plants and flowers, uneven air conditioning, uneven air circulation, and low degree of adjustment refinement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is a flow chart of an air conditioning method for a plant and flower greenhouse in one embodiment; Figure 2 The present invention is a structural block diagram of an air conditioning system for a plant and flower greenhouse in one embodiment. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0019] In one embodiment, a terminal is provided, which is used to: obtain plant status data of plants to be supervised in a current monitoring area in a plant and flower greenhouse, and generate estimated ventilation demand data based on the plant status data; obtain actual ventilation data of the current monitoring area, and generate ventilation adjustment demand data based on the actual ventilation data and the estimated ventilation demand data; obtain a spare air conditioning outlet according to the current monitoring area, set a currently used air conditioning outlet from the air conditioning outlets, and generate ventilation adjustment output data based on the currently used air conditioning outlet and the ventilation adjustment demand data; control the air conditioning equipment to perform air conditioning on the current monitoring area through the currently used air conditioning outlet according to the ventilation adjustment output data.

[0020] The terminal may be, but is not limited to, various personal computers, laptops, smart phones, tablet computers, and portable wearable devices.

[0021] In one embodiment, Figure 1 As shown, an air conditioning method for a plant and flower greenhouse is provided, the method comprising: Step S100: obtaining plant status data of the plants to be supervised in the current monitoring area in the plant and flower greenhouse, and generating estimated ventilation demand data according to the plant status data; Step S200: acquiring actual ventilation data of the current monitoring area, and generating ventilation adjustment demand data according to the actual ventilation data and the estimated ventilation demand data; Step S300: acquiring a backup air conditioning outlet according to the current monitoring area, setting a currently used air conditioning outlet from the air conditioning outlets, and generating ventilation adjustment output data according to the currently used air conditioning outlet and the ventilation adjustment demand data; Step S400: controlling the air conditioning equipment to perform air conditioning on the currently monitored area through the currently used air conditioning outlet according to the ventilation adjustment output data.

[0022] In this embodiment, in order to carry out fine management of the flowers and other plants planted in the plant and flower greenhouse, the plant and flower greenhouse is divided into areas, and each divided area is monitored to achieve fine ventilation according to the growth conditions and status of the plants and flowers.

[0023] After the area division, the current monitoring area is formed. There are three situations in the current monitoring area. The first situation is that all areas in the plant and flower greenhouse are planted with plants and flowers. The areas in the plant and flower greenhouse are divided equally according to the area or according to the types of plants. After the division, multiple small areas are formed, and each small area is the current monitoring area. The second situation is that all areas in the plant and flower greenhouse are planted with plants and flowers, but only the plants and flowers that need to be focused on are finely ventilated and air-conditioned. At this time, the area where the plants and flowers that need to be focused on are located is the current monitoring area, and the plants to be supervised are the plants and flowers that need to be focused on. The third situation is that only some areas in the plant and flower greenhouse are planted with plants or flowers, and other areas are in an unplanted state. In any case, by setting the current monitoring area, fine air conditioning and management of the set area can be achieved.

[0024] When monitoring the current monitoring area, first obtain the plant status data of the plants to be supervised in the current monitoring area in the plant and flower greenhouse, and generate the estimated ventilation demand data based on the plant status data. The plant status data is data indicating the growth status of the plants to be supervised at the current moment. Based on the principle that plants in different growth states require different ventilation, after obtaining the estimated ventilation demand data, the estimated ventilation demand data can be generated accordingly. The estimated ventilation demand data is the ventilation data required by the plants to be supervised in the current state. Then, by obtaining the actual ventilation data of the current monitoring area, the actual ventilation data is obtained by monitoring the ventilation conditions in the current monitoring area through a preset sensor, and the actual ventilation data is data indicating the ventilation conditions that the plants to be supervised can actually obtain. Then, ventilation adjustment demand data is generated based on the actual ventilation data and the estimated ventilation demand data, and the ventilation adjustment demand data is generated based on the difference between the actual ventilation conditions and the estimated ventilation conditions. Then, a backup air conditioning outlet is obtained according to the current monitoring area, and the backup air conditioning outlet is the conditioning outlet currently available in the plant and flower greenhouse. Then, the currently used air conditioning outlet is set from the air conditioning outlets, and the currently used air conditioning outlet is the conditioning outlet selected from the air conditioning outlets that is most suitable for air conditioning the plants to be supervised. Then, ventilation conditioning output data is generated according to the currently used air conditioning outlet and the ventilation conditioning demand data. Finally, according to the ventilation conditioning output data, the air conditioning equipment is controlled to perform air conditioning on the current monitoring area through the currently used air conditioning outlet. Therefore, the present invention first estimates the ventilation demand according to the current monitored area and the growth status of the plants to be supervised, then obtains the actual ventilation conditions of the plants to be supervised, and then obtains the air and ventilation data that currently need to be adjusted according to the difference between the two, and then selects the most suitable adjustment air outlet based on the actual usage of the vents in the plant and flower greenhouse, and finally performs air conditioning on the current monitoring area through the selected air conditioning outlet currently in use, thereby achieving refined ventilation adjustment for the selected plants and flowers in the selected area, solving the problems in the prior art of overall ventilation and air conditioning of the greenhouse, which easily lead to ignoring the differentiated ventilation needs of different plants and flowers, uneven air conditioning, uneven air circulation, and low degree of adjustment refinement.

[0025] In addition, in step S400, the air conditioning equipment is pre-set, and one of the air conditioning equipment corresponds to one currently used air conditioning outlet. The air conditioning equipment includes but is not limited to air supply fans, water-cooled air conditioners, wall-mounted air conditioners and other equipment that can supply air. That is, in this application, mechanical air supply is used as an example for explanation, and natural air supply is not used as an example.

[0026] It should be noted that in this application, "plants" refer to vegetables and green crops. "Flowers" refer to ornamental flowers, such as roses, lilies, and chrysanthemums. "Plant and flower greenhouses" are a general term for greenhouses that only grow plants, only grow flowers, or grow both plants and flowers.

[0027] In one embodiment, step S100: obtaining plant status data of the plants to be monitored in the current monitoring area in the plant and flower greenhouse, and generating estimated ventilation demand data according to the plant status data, includes: Step S110: obtaining plant status data of the plants to be supervised in the current monitoring area in the plant and flower greenhouse, and extracting the current plant picture and historically stored image data of the plants to be supervised from the plant status data; In order to more accurately ventilate and air-condition the plants to be supervised and the plant and flower greenhouse, sensors for monitoring the plants to be supervised, such as video acquisition sensors and image sensors, are pre-installed in the plant and flower greenhouse. The data of the plant status of the plants to be supervised during their growth process is acquired through the acquisition of the video acquisition sensor and the image sensor. The plant status data includes video and image data reflecting the situation in the current monitoring area and the status of the plants to be supervised. Extracting the current plant picture and historically stored image data of the plants to be supervised from the plant status data is conducive to subsequent accurate data processing. The historically stored image data is generated by the data storage acquired by the video acquisition sensor and the image sensor before the current time point.

[0028] Step S120: judging whether the plant to be supervised is in a sprouting state according to the current plant picture; In this step, when judging whether the plant to be supervised is in a sprouting state according to the current plant image, it is not necessary to process the image too much, and it is only necessary to judge whether there is a plant in the current plant image. If there is a plant image, it is judged to be yes. If it is judged that there is no plant, it is judged to be no.

[0029] Step S130: If the judgment is no, the current plant species and the planting time of the plant to be supervised are obtained, and estimated ventilation demand data is generated according to the current plant species and the planting time; In this step, if the judgment is no, that is, it is judged that the plant to be supervised is not in the sprouted state, then the plant to be supervised is judged to be in the unsprouted state. When in the unsprouted state, the plant to be supervised is still in the sprouting state. At this time, the current plant picture is only the actual picture of the current monitoring area, which is generally an image of the soil. Therefore, it is impossible to judge its growth state from the morphology of the plant to be supervised at this time, so the ventilation conditions required are judged by its planting time. Specifically, the planting situation data stored in the current monitoring area during planting is retrieved, and data is extracted from the planting situation data to obtain the current plant species and planting time of the plant to be supervised. Then, the corresponding plant growth database is obtained according to the current plant species.

[0030] The plant growth database is pre-stored, and the number of the plant growth databases is multiple, and one plant growth database corresponds to one pre-stored plant, that is, one plant species corresponds to one plant growth database. Each plant growth database stores the ventilation conditions required by the corresponding pre-stored plant at different growth stages, that is, multiple pre-stored growth stages are pre-stored, and each pre-stored growth stage corresponds to a pre-stored growth feature and a pre-stored ventilation demand data. Therefore, estimated ventilation demand data can be generated according to the current plant species and the planting time.

[0031] Step S140: If the judgment is yes, the current plant species of the plant to be supervised is obtained, and the current growth characteristics of the plant to be supervised are extracted from the current plant picture; Step S150: obtaining a plant growth database corresponding to the current plant species, comparing the current growth characteristics with the pre-stored growth characteristics in the plant growth database, and generating an actual growth stage of the plant to be supervised, wherein the actual growth stage corresponds to a pre-stored growth rate; Step S160: generating initial ventilation demand data according to the actual growth stage; In steps S140 to S160, when it is determined that the plant to be regulated is in a sprouting state, the plant is first identified based on the picture of the plant to be regulated, and the type of the plant to be regulated, that is, the current plant type, is obtained. Then, the growth stage of the plant to be regulated needs to be determined based on the picture. Specifically, the current growth characteristics of the plant to be regulated need to be extracted from the current plant picture. The current growth characteristics are the growth characteristics exhibited by the plant to be regulated at the current stage.

[0032] Taking corn as an example, corn has multiple growth stages, namely: germination stage, growth stage and reproductive stage. In the germination stage, the seeds break, and the image shows the characteristics of the bud tip sticking out of the soil. In the growth stage, the image shows the characteristics of a large number of leaves, a large leaf area, and a thick stem. In the reproductive stage, the image shows the characteristics of a flower spike. Taking rose as an example, its growth stages are germination stage, pre-flowering stage and post-flowering stage. In the germination stage, the image shows the characteristics of small young leaves. In the pre-flowering stage, the image shows the characteristics of flower buds and dark green leaves. In the post-flowering stage, the image shows the characteristics of flowering.

[0033] Therefore, firstly, the plant growth database corresponding to the current plant species is obtained, then the current growth characteristics are compared with the pre-stored growth characteristics in the plant growth database, and the pre-stored growth stage corresponding to the pre-stored growth characteristics matching the current growth characteristics is set as the actual growth stage of the plant to be supervised. The actual growth stage corresponds to a growth rate, that is, the pre-stored growth rate.

[0034] Next, the pre-stored ventilation requirement data corresponding to the actual growth stage is set as the initial ventilation requirement data.

[0035] Step S170: generating an actual growth rate of the plant to be supervised in the actual growth stage according to the historically stored image data, and generating a ventilation demand adjustment ratio according to the pre-stored growth rate and the actual growth rate; Step S180: adjusting the initial ventilation demand data according to the ventilation demand adjustment ratio and generating estimated ventilation demand data.

[0036] Generally speaking, different plants have different growth rates or growth rate ranges at different growth stages. This application uses the growth rate as an example for explanation, so multiple pre-stored growth rates are pre-stored. However, there are exceptions. For example, if individual plant crops grow too fast due to the soil environment in the plant and flower greenhouse, if ventilation control and adjustment are performed according to the ventilation data corresponding to the pre-stored growth rate, it will lead to a mismatch between the ventilation and air conditioning requirements of the plants to be supervised, resulting in problems with ventilation adjustment. In order to overcome this problem, on the basis of the originally preset pre-stored growth rate, the actual growth conditions of the current plants are also comprehensively considered to obtain matching ventilation control data, specifically, the actual growth rate of the plants to be supervised in the actual growth stage is generated according to the historically stored image data, and a ventilation demand adjustment ratio is generated according to the pre-stored growth rate and the actual growth rate. Finally, the initial ventilation demand data is adjusted according to the ventilation demand adjustment ratio and estimated ventilation demand data is generated.

[0037] In one embodiment, step S180: generating the actual growth rate of the plant to be supervised in the actual growth stage according to the historically stored image data, and generating a ventilation demand adjustment ratio according to the pre-stored growth rate and the actual growth rate, includes: Step S171: extracting the historical image data to be analyzed from the historically stored image data according to the length of time occupied by the actual growth stage corresponding to the plant to be supervised; Step S172: extracting a historical image data group from the historical image data to be analyzed according to a preset time unit, wherein the number of the historical image data groups is multiple, and each of the historical image data groups includes a historical growth image; Step S173: calculating the unit growth rate of each of the historical image data groups, and generating an actual growth rate according to each of the unit growth rates; Step S174: Calculate the ratio of the actual growth rate to the pre-stored growth rate, and generate a ventilation demand adjustment ratio.

[0038] In this embodiment, the time occupied by the actual growth stage is different according to the type of plant, that is, different actual growth stages are set in advance according to different types of plants. Therefore, when analyzing according to the historical stored image data, images are extracted from the historical stored image data according to the time occupied by the actual growth stage, and analyzed. Distance explanation, if the actual growth stage of the rose is the budding stage, and the duration of the budding stage is 20 days, then the image data within the past 20 days is extracted from the historical stored image data, that is, the historical image data to be analyzed is extracted from the historical stored image data according to the length of time occupied by the actual growth stage corresponding to the plant to be supervised. Next, in order to more accurately obtain the growth rate of the plant to be supervised, and then extract the historical image data group from the historical image data to be analyzed according to the preset time unit, so that the number of the historical image data groups is set to be multiple, each group of the historical image data groups contains historical growth images, and the rate analysis is realized with the historical image data group as the smallest unit. Next, the unit growth rate of each historical image data group is calculated, and the actual growth rate is generated according to each unit growth rate. Finally, the ratio of the actual growth rate to the pre-stored growth rate is calculated, and the ventilation demand adjustment ratio is generated, so as to accurately obtain the rate of the plants to be supervised according to the analysis of historical images, and adjust the ventilation data based on this, so as to generate accurate ventilation data.

[0039] In one embodiment, in step S173, calculating the unit growth rate of each of the historical image data groups, and generating the actual growth rate according to each of the unit growth rates, includes: Step S1731: respectively calculating the single growth rate of adjacent historical growth images in each of the historical image data; Step S1732: setting the average of each single growth rate as the unit growth rate of the historical image data; Step S1733: Calculate the average value of each unit growth rate and generate the actual growth rate.

[0040] In this embodiment, adjacent historical growth images are used as a group to generate rates. First, the single growth rates of adjacent historical growth images in each of the historical image data are calculated respectively, and then the average of each of the single growth rates is set as the unit growth rate of the historical image data. Finally, the average of each of the unit growth rates is calculated, and the actual growth rate is generated to achieve refined calculation of the growth rate.

[0041] In one embodiment, the adjacent historical growth images in the historical image data are respectively a first growth image and a second growth image; In step S1731, calculating a single growth rate of a group of adjacent historical growth images in the historical image data includes: Step S1741: extracting the number of leaves in the first growth image, recorded as the first leaf number, and extracting the number of leaves in the second growth image, recorded as the second leaf number; Step S1742: extracting a first leaf area of ​​the first growth image at a top-view angle and a second leaf area of ​​the second growth image at a top-view angle; Step S1743: extracting a first plant height of the plant in the first growth image and a second plant height of the plant in the second growth image based on a preset length reference; In this step, the length reference object is pre-set in the current monitoring area, generally at the edge or middle of the current monitoring area, and the number can be set to multiple. On the one hand, it is used for height reference, and on the other hand, it is used as a rod for plant growth and climbing when height measurement is not required, such as a rod for conveniently fixing grapes.

[0042] Step S1744: Generate a single growth rate based on the following formula according to the first leaf number, the second leaf number, the first leaf area, the second leaf area, the first plant height, and the second plant height: ; Among them, Vsr is the single growth rate, r1 is the first proportional coefficient, n2 is the second leaf number, n1 is the first leaf number, r2 is the second proportional coefficient, Scr is the second leaf area, Sar is the first leaf area, r3 is the third proportional coefficient, Hb is the second plant height, and Ha is the first plant height.

[0043] In this embodiment, the first proportionality coefficient, the second proportionality coefficient and the third proportionality coefficient are all preset. The first proportionality coefficient, the second proportionality coefficient and the third proportionality coefficient respectively represent the weights of the number of leaves, the leaf area and the plant height in the plant growth.

[0044] Therefore, in this embodiment, the single growth rate is generated by first extracting the number of first leaves and the number of second leaves, then obtaining the first leaf area and the second leaf area, and then integrating the first plant height and the second plant height to calculate the growth rate of the plant by integrating the three aspects of quantity, area and height.

[0045] It should be noted that the historical image data includes a plurality of historical growth images, and every two adjacent historical growth images are set as a first growth image and a second growth image.

[0046] In one embodiment, in step S300, acquiring a backup air conditioning outlet according to the current monitoring area and setting a currently used air conditioning outlet from the air conditioning outlets includes: Step S310: obtaining an air conditioning planning table in the plant and flower greenhouse, and selecting candidate air conditioning outlets with an idle working status according to the air conditioning planning table; Step S320: obtaining the straight-line distance between the candidate air conditioning outlet and the current monitoring area, eliminating the candidate air conditioning outlets corresponding to the straight-line distance greater than or equal to the preset distance, and generating a candidate air conditioning outlet; In order to select an outlet suitable for air conditioning and ventilation management of the plants to be monitored, the air conditioning planning table in the plant and flower greenhouse is first obtained. The air conditioning planning table stores the operating time plan of each air conditioning outlet. Then, the alternative air conditioning outlets with an idle working state are screened out according to the air conditioning planning table. Then, the straight-line distance between the alternative air conditioning outlet and the current monitoring area is obtained. The straight-line distance is the straight-line distance formed by the line connecting the center of the alternative air conditioning outlet and the center point of the current monitoring area. The alternative air conditioning outlets corresponding to the straight-line distance greater than or equal to the preset distance are eliminated, and the selected air conditioning outlet is generated. That is, the preset distance is set in advance to avoid selecting a farther air conditioning outlet when selecting an air conditioning outlet, thereby avoiding the problem of excessive airflow diffusion due to excessive distance, inability to accurately adjust the air in the monitored area, and affecting the ventilation of plants in other areas.

[0047] Step S330: obtaining an airflow path between the selected air conditioning outlet and the current monitoring area, and obtaining airflow path interference data corresponding to the airflow path, wherein one selected air conditioning outlet corresponds to one airflow path and one airflow path interference data; In this step, the airflow path is the path formed when the airflow passes through the selected air conditioning outlet and flows through the current monitoring area. Generally speaking, the airflow path includes two situations. The first situation is that the airflow path is linear, that is, the selected air conditioning outlet is facing the monitored area. The second situation is that the airflow path is non-linear and there are obstacles. Due to the obstruction of the building structure in the plant and flower greenhouse, the airflow path is not a straight line or there are obstacles.

[0048] Whether it is a linear or non-linear airflow path, there may be interference with ventilation. Therefore, in order to accurately ventilate and improve ventilation control efficiency, airflow path interference data corresponding to the airflow path is obtained. The airflow path interference data is the data that affects ventilation on the airflow path.

[0049] Step S340: extracting the airflow path area in the airflow path from the airflow path interference data, and generating a path area interference factor corresponding to the airflow path area, wherein one airflow path includes at least one airflow path area, and one airflow path area corresponds to one path area interference factor; In this step, the airflow path area is an area in the airflow path where growing plants exist. There are two situations for the airflow path area in each of the airflow paths. One is that there is an airflow path area in the airflow path, and the number of the airflow path areas is at least one. The second is that there is no airflow path area in the airflow path. For the second situation, the selected air conditioning outlet corresponding to the airflow path is directly set as the effective flow path. The ventilation situation in this situation is simple, so it is not elaborated in detail. Starting from step S340, only the situation where there is an airflow path area in the airflow path is described and analyzed. That is, for the first situation, screening is required, specifically, selection is made according to steps S350-S360.

[0050] The path area interference factor is data for indicating the degree of influence on the original ventilation data of the airflow path area when air conditioning is performed through the airflow flow path.

[0051] Step S350: generating pathway area ventilation data according to the pathway area interference factor and the real-time ventilation data of each of the airflow pathway areas, wherein one airflow pathway area corresponds to one pathway area ventilation data; In this step, when the pathway area ventilation data is generated according to the pathway area interference factor and the real-time ventilation data of each of the airflow pathway areas, the pathway area interference factor is multiplied by the real-time ventilation data of the airflow pathway area, and the pathway area ventilation data is generated. Taking the real-time ventilation data represented by ventilation volume ACH as an example, if the pathway area interference factor is represented by IFN, the pathway area ventilation data can be obtained by multiplying the ventilation volume ACH by the pathway area interference factor IFN.

[0052] Step S360: Filter out the airflow path areas corresponding to the ventilation data of the path areas beyond the calibration range of the current area from each of the airflow path areas, and record the airflow flow paths corresponding to the filtered airflow path areas as invalid flow paths, wherein one calibration range of the current area corresponds to one airflow path area, and the other paths in each of the airflow flow paths except the invalid flow paths are valid flow paths; In this step, each of the airflow path areas is planted with plants, and different plants currently require different ventilation conditions. The current area calibration range is the ventilation conditions currently required by the plants in the airflow path area. If the current area calibration range is exceeded, it means that the plants in the airflow path area will be affected. When ventilating and air-conditioning the plants to be supervised, it is necessary to ensure that no interference is caused to plants in other areas, so the flow path needs to be screened.

[0053] During screening, it is necessary to compare the current area calibration range with the pathway area ventilation data, and first screen out the airflow pathway area corresponding to the pathway area ventilation data that exceeds the current area calibration range from each of the airflow pathway areas. When it exceeds the current area calibration range, it means that the actual ventilation at this time has affected the normal ventilation of the airflow pathway area. Therefore, the airflow flow path corresponding to the airflow pathway area corresponding to the pathway area ventilation data that exceeds the current area calibration range is set as an invalid flow path. That is, as long as there is a pathway area ventilation data that exceeds the current area calibration range, it means that there is an area in the corresponding airflow flow path that will be affected, and the degree of influence is large, which affects the corresponding plant ventilation. Therefore, the corresponding airflow flow path is recorded as an invalid flow path, and then, the other paths in each of the airflow flow paths except the invalid flow path are set as valid flow paths, and the valid flow path is a path that will not affect the plants in the pathway area.

[0054] Step S370: generating an airflow loss factor of the effective flow path according to the airflow path interference data; Step S380: selecting a target flow path from the effective flow paths according to the air flow loss factor; Step S390: setting the candidate air conditioning outlet corresponding to the target flow path as the currently used air conditioning outlet.

[0055] In this embodiment, the airflow loss factor is the data of the degree of obstruction when ventilation is regulated according to the effective flow path. In order to select the ventilation path and vent with the highest ventilation efficiency, the airflow loss factor of the effective flow path is first generated according to the airflow path interference data, and then the target flow path is selected from the effective flow path according to the airflow loss factor. During the selection, the effective flow path corresponding to the smallest airflow loss factor among the airflow loss factors corresponding to the effective flow paths is set as the target flow path, and then the selected air conditioning outlet corresponding to the target flow path is set as the currently used air conditioning outlet.

[0056] In one embodiment, in step S340, generating a path area interference factor corresponding to the airflow path area according to the airflow path interference data includes: Step S341: extracting the path length from the candidate air conditioning outlet to the air flow path area from the air flow path interference data; Step S342: extracting the regional obstruction area of ​​the airflow path region from the airflow path interference data; Step S343: Generate a route area interference factor based on the following formula according to the route length and the area of ​​regional obstruction: ; Among them, IFN is the pathway area interference factor, Lsc is the pathway path length, Lsd is the pre-stored standard path length, Sdr is the regional obstruction area, k is the preset airflow diffusion coefficient, and Smin is the area of ​​the selected air conditioning outlet corresponding to the airflow pathway area.

[0057] In this embodiment, the standard path length and airflow diffusion coefficient are pre-set. As the airflow through the selected air conditioning outlet moves forward, the larger the area covered by the airflow, the corresponding relationship between the area covered by the airflow and the diffusion distance is pre-calculated and set based on this principle, and the airflow diffusion coefficient k is set. Therefore, That is, it is the estimated area covered by the airflow through the selected air conditioning outlet when it flows to the airflow path area. The standard path length is measured and set in advance according to the air supply data of the selected air conditioning outlet.

[0058] Therefore, by pre-setting and storing the standard path length and airflow diffusion coefficient, and then performing real-time analysis to obtain the path length and regional obstruction area, data is generated to represent the degree of impact on the original ventilation data of the airflow path area when air conditioning is performed through the airflow flow path, that is, the path area interference factor is generated.

[0059] In one embodiment, step S370: generating the airflow loss factor of the effective flow path according to the airflow path interference data, comprises: Step S371: extracting physical obstacles in the effective flow path according to the airflow path interference data, and generating obstacle obstruction areas according to the physical obstacles; In this step, the physical obstacles include the greenhouse-related structures that affect the airflow in the greenhouse for plants and flowers, including cultivation racks, tool carts, sprinkler systems, baffles, and the like.

[0060] Step S372: obtaining the obstruction flow distance between the selected air conditioning outlet corresponding to the effective flow path and the physical obstruction; Step S373: extracting the airflow path area in the effective flow path according to the airflow path interference data, and generating the current area obstruction area according to the extracted airflow path area; Step S374: obtaining a regional flow distance between a candidate air conditioning outlet corresponding to the effective flow path and an air flow path region in the effective flow path; Step S375: obtaining the plant distribution density in the airflow path area in the effective flow path, and generating a plant density influence coefficient according to the plant distribution density; In this step, a standard distribution density is preset. At the standard distribution density, the effect of plants on airflow is moderate. That is, the standard distribution density is set as a reference. When the plant distribution density is greater than the standard distribution density, the effect is greater. Otherwise, the effect is smaller.

[0061] Specifically, the plant density influence coefficient corresponding to the plant distribution density greater than the standard distribution density is generated by subtracting the standard distribution density from the plant distribution density and dividing the difference by the standard distribution density.

[0062] The plant density influence coefficient corresponding to the plant distribution density less than the standard distribution density is generated by subtracting the plant distribution density from the standard distribution density and dividing the difference by the standard distribution density.

[0063] One airflow path area corresponds to one plant density influence coefficient.

[0064] Step S376: Generate an air flow loss factor based on the following formula: ; Wherein, ALF is the air flow loss factor, N1 is the number of physical obstacles, Lsi is the distance between the ith physical obstacle and the candidate air conditioning outlet corresponding to the effective circulation path, Lmax is the path distance of the effective circulation path, Soi is the obstacle obstruction area of ​​the ith physical obstacle, k is the preset air flow diffusion coefficient, Scm is the area of ​​the candidate air conditioning outlet corresponding to the effective circulation path, N2 is the number of air flow path areas, Lvj is the distance between the jth air flow path area and the candidate air conditioning outlet corresponding to the effective circulation path, is the plant density influence coefficient corresponding to the j-th airflow path area, and Svj is the current regional obstruction area of ​​the j-th airflow path area.

[0065] In this embodiment, by comprehensively considering the obstacle obstruction area, the obstructed flow distance, the current area obstruction area, the regional flow distance and the plant distribution density, an airflow loss factor is finally generated that can represent the degree of obstruction when ventilation is adjusted according to the effective flow path.

[0066] In one embodiment, in step S300, generating ventilation adjustment output data according to the currently used air conditioning outlet and the ventilation adjustment demand data includes: Step S331: Divide the ventilation adjustment demand data by the air flow loss factor corresponding to the currently used air conditioning outlet to generate the ventilation adjustment output data.

[0067] The ventilation adjustment output data is control data outputted through the currently used air conditioning outlet for adjusting the ventilation in the plant and flower greenhouse.

[0068] In one embodiment, Figure 2 As shown, an air conditioning system for a plant and flower greenhouse is also provided, the system comprising: A ventilation demand generation module is used to obtain plant status data of the plants to be supervised in the current monitoring area in the plant and flower greenhouse, and generate estimated ventilation demand data based on the plant status data; A ventilation adjustment generation module, used to obtain actual ventilation data of the current monitoring area, and generate ventilation adjustment demand data according to the actual ventilation data and the estimated ventilation demand data; a ventilation data determination module, configured to obtain a backup air conditioning outlet according to the current monitoring area, set a currently used air conditioning outlet from the air conditioning outlets, and generate ventilation adjustment output data according to the currently used air conditioning outlet and the ventilation adjustment demand data; The ventilation control execution module is used to control the air conditioning equipment to perform air conditioning on the currently monitored area through the currently used air conditioning outlet according to the ventilation adjustment output data.

[0069] In another embodiment, the ventilation demand generation module is also used to: obtain plant status data of the plants to be supervised in the current monitoring area in the plant and flower greenhouse, and extract the current plant picture and historical storage image data of the plants to be supervised from the plant status data; judge whether the plants to be supervised are in a sprouting state according to the current plant picture; if the judgment is no, obtain the current plant species and planting time of the plants to be supervised, and generate estimated ventilation demand data according to the current plant species and planting time; if the judgment is yes, obtain the current plant species of the plants to be supervised, and extract the current growth characteristics; obtaining a plant growth database corresponding to the current plant species, comparing the current growth characteristics with the pre-stored growth characteristics in the plant growth database, and generating an actual growth stage of the plant to be supervised, wherein the actual growth stage corresponds to a pre-stored growth rate; generating initial ventilation demand data according to the actual growth stage; generating an actual growth rate of the plant to be supervised in the actual growth stage according to the historically stored image data, and generating a ventilation demand adjustment ratio according to the pre-stored growth rate and the actual growth rate; adjusting the initial ventilation demand data according to the ventilation demand adjustment ratio and generating estimated ventilation demand data.

[0070] In another embodiment, the ventilation demand generation module is also used to: extract historical image data to be analyzed from the historical stored image data according to the length of time occupied by the actual growth stage corresponding to the plant to be supervised; extract historical image data groups from the historical image data to be analyzed according to preset time units, wherein the number of the historical image data groups is multiple, and each group of the historical image data groups contains historical growth images; calculate the unit growth rate of each of the historical image data groups, and generate an actual growth rate based on each of the unit growth rates; calculate the ratio of the actual growth rate to the pre-stored growth rate, and generate a ventilation demand adjustment ratio.

[0071] In another embodiment, the ventilation demand generation module is also used to: respectively calculate the single growth rates of adjacent historical growth images in each of the historical image data; set the average of each of the single growth rates as the unit growth rate of the historical image data; calculate the average of each of the unit growth rates, and generate the actual growth rate.

[0072] In another embodiment, the adjacent historical growth images in the historical image data are respectively a first growth image and a second growth image; and the ventilation demand generating module is further used to: Extract the number of leaves in the first growth image, record it as the first leaf number, and extract the number of leaves in the second growth image, record it as the second leaf number; extract the first leaf area of ​​the first growth image at a top-view angle and the second leaf area of ​​the second growth image at a top-view angle; extract the first plant height of the plant in the first growth image and the second plant height of the plant in the second growth image based on a preset length reference; generate a single growth rate based on the following formula according to the first leaf number, the second leaf number, the first leaf area, the second leaf area, the first plant height and the second plant height: ; Among them, Vsr is the single growth rate, r1 is the first proportional coefficient, n2 is the second leaf number, n1 is the first leaf number, r2 is the second proportional coefficient, Scr is the second leaf area, Sar is the first leaf area, r3 is the third proportional coefficient, Hb is the second plant height, and Ha is the first plant height.

[0073] In another embodiment, the ventilation data determination module is also used to: obtain the air conditioning planning table in the plant and flower greenhouse, and screen out the alternative air conditioning outlets with an idle working status according to the air conditioning planning table; obtain the straight-line distance between the alternative air conditioning outlet and the current monitoring area, eliminate the alternative air conditioning outlets corresponding to the straight-line distance greater than or equal to the preset distance, and generate a candidate air conditioning outlet; obtain the airflow flow path between the candidate air conditioning outlet and the current monitoring area, and obtain the airflow path interference data corresponding to the airflow flow path, wherein one of the candidate air conditioning outlets corresponds to one airflow flow path and one of the airflow path interference data; extract the airflow path area in the airflow path from the airflow path interference data, and generate a path area interference factor corresponding to the airflow path area, wherein one of the airflow flow paths includes at least one airflow path area, and one of the air A flow path area corresponds to a path area interference factor; path area ventilation data is generated according to the path area interference factor and the real-time ventilation data of each of the air flow path areas, wherein one air flow path area corresponds to one path area ventilation data; the air flow path area corresponding to the path area ventilation data exceeding the current area calibration range is screened out from each of the air flow path areas, and the air flow path corresponding to the screened air flow path area is recorded as an invalid flow path, wherein one current area calibration range corresponds to one air flow path area, and the other paths in each of the air flow paths except the invalid flow path are valid flow paths; the air flow loss factor of the valid flow path is generated according to the air flow path interference data; the target flow path is screened out from the valid flow path according to the air flow loss factor; and the selected air conditioning outlet corresponding to the target flow path is set as the currently used air conditioning outlet.

[0074] In another embodiment, the ventilation data determination module is further used to: extract the path length of the selected air conditioning outlet to the airflow path area from the airflow path interference data; extract the regional obstruction area of ​​the airflow path area from the airflow path interference data; and generate a path area interference factor based on the following formula according to the path length and the regional obstruction area: ; Among them, IFN is the pathway area interference factor, Lsc is the pathway path length, Lsd is the pre-stored standard path length, Sdr is the regional obstruction area, k is the preset airflow diffusion coefficient, and Smin is the area of ​​the selected air conditioning outlet corresponding to the airflow pathway area.

[0075] In another embodiment, the ventilation data determination module is further used to: extract the physical obstruction in the effective circulation path according to the airflow path interference data, and generate the obstacle obstruction area according to the physical obstruction; obtain the obstruction flow distance between the selected air conditioning outlet corresponding to the effective circulation path and the physical obstruction; extract the airflow path area in the effective circulation path according to the airflow path interference data, and generate the current regional obstruction area according to the extracted airflow path area; obtain the regional flow distance between the selected air conditioning outlet corresponding to the effective circulation path and the airflow path area in the effective circulation path; generate the airflow circulation loss factor based on the following formula: ; Wherein, ALF is the air flow loss factor, N1 is the number of physical obstacles, Lsi is the distance between the ith physical obstacle and the candidate air conditioning outlet corresponding to the effective circulation path, Lmax is the path distance of the effective circulation path, Soi is the obstacle obstruction area of ​​the ith physical obstacle, k is the preset air flow diffusion coefficient, Scm is the area of ​​the candidate air conditioning outlet corresponding to the effective circulation path, N2 is the number of air flow path areas, Lvj is the distance between the jth air flow path area and the candidate air conditioning outlet corresponding to the effective circulation path, is the plant density influence coefficient corresponding to the j-th airflow path area, and Svj is the current regional obstruction area of ​​the j-th airflow path area.

[0076] In another embodiment, the ventilation data determination module is further used to: divide the ventilation adjustment demand data by the air flow loss factor corresponding to the currently used air conditioning outlet to generate the ventilation adjustment output data.

[0077] In one embodiment, a computer device is also provided, including a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the above-mentioned air conditioning method for plant and flower greenhouses when executing the computer program.

[0078] In one embodiment, a computer-readable storage medium is also provided, on which a computer program is stored. When the computer program is executed by a processor, the steps of the above-mentioned air conditioning method for plant and flower greenhouses are implemented.

[0079] Those of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be implemented by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application may include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

[0080] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0081] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. An air conditioning method for a plant and flower greenhouse, characterized in that: The method comprises: Obtaining plant status data of the plants to be supervised in the current monitoring area in the plant and flower greenhouse, and generating estimated ventilation demand data based on the plant status data; Acquiring actual ventilation data of the current monitoring area, and generating ventilation adjustment demand data according to the actual ventilation data and the estimated ventilation demand data; Acquire a backup air conditioning outlet according to the current monitoring area, set a currently used air conditioning outlet from the air conditioning outlets, and generate ventilation and conditioning output data according to the currently used air conditioning outlet and the ventilation and conditioning demand data; The air conditioning device is controlled according to the ventilation adjustment output data to perform air conditioning on the currently monitored area through the currently used air conditioning outlet.

2. The air conditioning method for plant and flower greenhouses according to claim 1, characterized in that: Obtaining plant status data of the plants to be supervised in the current monitoring area in the plant and flower greenhouse, and generating estimated ventilation demand data based on the plant status data, including: Acquire plant status data of the plants to be supervised in the current monitoring area in the plant and flower greenhouse, and extract the current plant pictures and historically stored image data of the plants to be supervised from the plant status data; Determining whether the plant to be supervised is in a sprouting state according to the current plant picture; If the judgment is no, then obtaining the current plant species and planting time of the plant to be supervised, and generating estimated ventilation demand data according to the current plant species and planting time; If the judgment is yes, then obtaining the current plant species of the plant to be supervised, and extracting the current growth characteristics of the plant to be supervised from the current plant picture; Obtaining a plant growth database corresponding to the current plant species, comparing the current growth characteristics with the pre-stored growth characteristics in the plant growth database, and generating an actual growth stage of the plant to be supervised, wherein the actual growth stage corresponds to a pre-stored growth rate; generating initial ventilation requirement data according to the actual growth stage; Generate the actual growth rate of the plant to be supervised in the actual growth stage according to the historically stored image data, and generate a ventilation demand adjustment ratio according to the pre-stored growth rate and the actual growth rate; The initial ventilation demand data is adjusted according to the ventilation demand adjustment ratio to generate estimated ventilation demand data.

3. The air conditioning method for plant and flower greenhouses according to claim 2, characterized in that: Generating the actual growth rate of the plant to be supervised in the actual growth stage according to the historically stored image data, and generating a ventilation demand adjustment ratio according to the pre-stored growth rate and the actual growth rate, including: Extracting the historical image data to be analyzed from the historically stored image data according to the length of time occupied by the actual growth stage corresponding to the plant to be supervised; Extracting a historical image data group from the historical image data to be analyzed according to a preset time unit, wherein the number of the historical image data groups is multiple, and each of the historical image data groups includes a historical growth image; Calculating the unit growth rate of each of the historical image data sets, and generating an actual growth rate according to each of the unit growth rates; The ratio of the actual growth rate to the pre-stored growth rate is calculated, and a ventilation demand adjustment ratio is generated.

4. The air conditioning method for plant and flower greenhouses according to claim 3, characterized in that: Calculating the unit growth rate of each of the historical image data groups and generating an actual growth rate according to each of the unit growth rates, including: respectively calculating the single growth rates of adjacent historical growth images in each of the historical image data; Setting the average of each of the single growth rates as the unit growth rate of the historical image data; The average of each of the unit growth rates is calculated and the actual growth rate is generated.

5. The air conditioning method for plant and flower greenhouse according to claim 1, characterized in that: Acquiring a backup air conditioning outlet according to the current monitoring area, and setting a currently used air conditioning outlet from the air conditioning outlets, including: Obtaining an air conditioning planning table in the plant and flower greenhouse, and screening out candidate air conditioning outlets whose working status is idle according to the air conditioning planning table; Obtaining a straight-line distance between the candidate air conditioning outlet and the current monitoring area, eliminating the candidate air conditioning outlets corresponding to a straight-line distance greater than or equal to a preset distance, and generating a candidate air conditioning outlet; Acquire an airflow path between the selected air conditioning outlet and the current monitoring area, and acquire airflow path interference data corresponding to the airflow path, wherein one selected air conditioning outlet corresponds to one airflow path and one airflow path interference data; Extracting an airflow path region in the airflow path from the airflow path interference data, and generating a path region interference factor corresponding to the airflow path region, wherein one airflow path includes at least one airflow path region, and one airflow path region corresponds to one path region interference factor; Generate pathway area ventilation data according to the pathway area interference factor and the real-time ventilation data of each of the airflow pathway areas, wherein one airflow pathway area corresponds to one pathway area ventilation data; Screening out the airflow path areas corresponding to the ventilation data of the path areas beyond the calibration range of the current area from each of the airflow path areas, and recording the airflow flow paths corresponding to the screened airflow path areas as invalid flow paths, wherein one calibration range of the current area corresponds to one airflow path area, and the other paths in each of the airflow flow paths except the invalid flow paths are valid flow paths; generating an airflow loss factor of the effective flow path according to the airflow path interference data; Screening out a target flow path from the effective flow paths according to the air flow loss factor; The selected air conditioning outlet corresponding to the target flow path is set as the currently used air conditioning outlet.

6. The air conditioning method for plant and flower greenhouses according to claim 5, characterized in that: Generating a path area interference factor corresponding to the airflow path area according to the airflow path interference data includes: Extracting the path length from the candidate air conditioning outlet to the air flow path area from the air flow path interference data; Extracting the regional obstruction area of ​​the airflow path region from the airflow path interference data; According to the route length and regional obstruction area, the route area interference factor is generated based on the following formula: ； Among them, IFN is the pathway area interference factor, Lsc is the pathway path length, Lsd is the pre-stored standard path length, Sdr is the regional obstruction area, k is the preset airflow diffusion coefficient, and Smin is the area of ​​the selected air conditioning outlet corresponding to the airflow pathway area.

7. The air conditioning method for plant and flower greenhouses according to claim 6, characterized in that: Generating the airflow loss factor of the effective flow path according to the airflow path interference data includes: Extracting physical obstacles in the effective flow path according to the airflow path interference data, and generating obstacle obstruction areas according to the physical obstacles; Obtaining a flow obstruction distance between a candidate air conditioning outlet corresponding to the effective flow path and the physical obstruction; Extracting the airflow path area in the effective flow path according to the airflow path interference data, and generating the current area obstruction area according to the extracted airflow path area; Acquire a regional flow distance between a candidate air conditioning outlet corresponding to the effective flow path and an air flow path region in the effective flow path; Acquiring the plant distribution density in the airflow path area of ​​the effective flow path, and generating a plant density influence coefficient according to the plant distribution density; The air flow loss factor is generated based on the following formula: ； Wherein, ALF is the air flow loss factor, N1 is the number of physical obstacles, Lsi is the distance between the ith physical obstacle and the candidate air conditioning outlet corresponding to the effective circulation path, Lmax is the path distance of the effective circulation path, Soi is the obstacle obstruction area of ​​the ith physical obstacle, k is the preset air flow diffusion coefficient, Scm is the area of ​​the candidate air conditioning outlet corresponding to the effective circulation path, N2 is the number of air flow path areas, Lvj is the distance between the jth air flow path area and the candidate air conditioning outlet corresponding to the effective circulation path, is the plant density influence coefficient corresponding to the j-th airflow path area, and Svj is the current regional obstruction area of ​​the j-th airflow path area.

8. An air conditioning system for a plant and flower greenhouse, characterized in that: The system comprises: A ventilation demand generation module is used to obtain plant status data of the plants to be supervised in the current monitoring area in the plant and flower greenhouse, and generate estimated ventilation demand data based on the plant status data; A ventilation adjustment generation module, used to obtain actual ventilation data of the current monitoring area, and generate ventilation adjustment demand data according to the actual ventilation data and the estimated ventilation demand data; a ventilation data determination module, configured to obtain a backup air conditioning outlet according to the current monitoring area, set a currently used air conditioning outlet from the air conditioning outlets, and generate ventilation adjustment output data according to the currently used air conditioning outlet and the ventilation adjustment demand data; The ventilation control execution module is used to control the air conditioning equipment to perform air conditioning on the currently monitored area through the currently used air conditioning outlet according to the ventilation adjustment output data.

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