Intelligent ecological breeding method and system for livestock farm

Abstract

The invention relates to the field of intelligent ecological breeding, in particular to an intelligent ecological breeding method and system for a livestock farm. The method comprises the following steps: acquiring livestock farm information, real-time animal information in the livestock farm and real-time environment information in the livestock farm, and determining real-time flow information of gas in the livestock farm according to the real-time animal information, the livestock farm information and the real-time environment information; acquiring negative pressure ventilation system information and external air information, determining a negative pressure ventilation strategy according to the negative pressure ventilation system information, the external air information and the real-time flow information, and performing negative pressure ventilation operation on the livestock farm according to the negative pressure ventilation strategy. According to the application, the air flow information is determined by acquiring the livestock farm information and animal and environment data in real time, so that the dynamic monitoring of the air flow in the livestock farm is realized. A negative pressure ventilation strategy is determined by combining a negative pressure ventilation system and external air information, the air quality is improved while air circulation is effectively adjusted, and the animal health and the sustainability of the breeding environment are guaranteed.

Description

Technical Field

[0001] The present application relates to the field of intelligent ecological breeding technology, and in particular to an intelligent ecological breeding method and system for livestock farms. Background Art

[0002] In the ecological breeding process of modern livestock farms, ventilation treatment in the farm is very important. In the livestock farm, the use of a negative pressure system to ventilate the air in the farm can ensure the air quality in the farm, while discharging toxic and harmful gases, ensuring that the animals in the farm are in a good breeding environment, which is conducive to the growth of the animals.

[0003] However, due to the complex environment and areas inside and outside the livestock farm, the ventilation treatment of the negative pressure ventilation system is inconsistent with the actual air circulation conditions in the livestock farm, thereby reducing the air quality in the livestock farm and affecting the healthy growth environment of the animals. Summary of the invention

[0004] The present application provides an intelligent ecological breeding method and system for livestock farms to solve the above-mentioned problems.

[0005] In a first aspect, the present application provides a livestock farm intelligent ecological breeding method, the method comprising: Acquire livestock farm information, real-time animal information in the livestock farm, and real-time environmental information in the livestock farm, and determine real-time flow information of gas in the livestock farm based on the real-time animal information, the livestock farm information, and the real-time environmental information; Obtain negative pressure ventilation system information and external air information, determine a negative pressure ventilation strategy based on the negative pressure ventilation system information, the external air information and the real-time flow information, and perform negative pressure ventilation operations on the livestock farm based on the negative pressure ventilation strategy.

[0006] Through this solution, farm information, real-time animal information, and real-time environmental information are obtained. By combining this information, the real-time flow information of gas in the farm is determined, so as to understand the actual circulation of air. The negative pressure ventilation system information and external air information are collected, combined with the real-time flow information, so as to determine the negative pressure ventilation strategy to ensure the ideal air flow and temperature and humidity levels under different environmental conditions. According to the formulated negative pressure ventilation strategy, the parameters such as the switch of the negative pressure fan, the vent, and the wind speed of the negative pressure fan are automatically adjusted to achieve precise negative pressure ventilation operation, optimize air circulation, reduce the accumulation of harmful gases, and provide a healthy and comfortable growth environment for animals in the farm. By dynamically responding to environmental changes in the farm, the air quality in the farm is improved while the breeding efficiency is improved.

[0007] Optionally, the livestock farm information includes the building height of the livestock farm and the total air volume of the livestock farm, the real-time animal information includes the real-time number of animals and the real-time animal volume, and the real-time environmental information includes the real-time environmental humidity in the livestock farm. Determining the real-time flow information of the gas in the livestock farm based on the real-time animal information, the livestock farm information and the real-time environmental information includes: The real-time flow velocity is determined based on the building height, the total air volume, the real-time ambient humidity, the real-time animal volume and the real-time animal quantity, and is calculated according to the following formula: ; in, represents the real-time flow speed, Indicates the preset adjustment constant, represents the building height, Indicates the real-time ambient humidity. represents the real-time animal volume, Indicates the real-time number of animals, represents said total air volume; The real-time flow speed is incorporated into the real-time flow information.

[0008] Through this solution, the real-time flow velocity is calculated using the given formula based on the building height, total air volume, real-time ambient humidity, real-time animal volume and real-time animal number of the livestock farm. The adjustment constants and variables in the formula work together to reflect the impact of the environment and animal activities in the livestock farm on the airflow. Specifically, the building height and total air volume affect the overall diffusion capacity of the gas, while the real-time ambient humidity, animal volume and animal number affect the resistance and rate of gas flow. Through this dynamic calculation, the real-time flow velocity of the airflow is obtained in real time, providing an accurate basis for the subsequent negative pressure ventilation strategy. The real-time flow velocity will be incorporated into the real-time flow information of the negative pressure ventilation system to ensure the maximization of the negative pressure ventilation effect, thereby creating a more comfortable and healthy growth environment for animals.

[0009] Optionally, the real-time environmental information includes the real-time environmental temperature in the livestock farm, the real-time environmental information includes gas monitoring information in the livestock farm, and determining the real-time flow information of the gas in the livestock farm according to the real-time animal information, the livestock farm information and the real-time environmental information includes: Acquire a real-time environmental image in the livestock farm, and determine the real-time animal density according to the real-time environmental image and the real-time number of animals; Determine the number of areas in the livestock farm and the real-time activity intensity of animals in the livestock farm based on the real-time environmental image; Determine the gas type of each area and the gas concentration corresponding to the gas type according to the gas monitoring information and the number of areas; The real-time flow rate is determined according to the real-time activity intensity, the gas concentration, the real-time animal density, the real-time ambient temperature and the building height, and is calculated according to the following formula: ; in, represents the real-time circulation amount, Indicates the preset flow adjustment constant, represents the real-time activity intensity, Indicates the preset concentration influence coefficient, represents the gas concentration, Indicates the preset temperature influence coefficient, represents the real-time ambient temperature, Indicates the preset density influence coefficient, represents the real-time animal density, represents the height of the building; The real-time circulation volume is incorporated into the real-time flow information.

[0010] Through this solution, real-time environmental images are obtained, and the real-time animal density is calculated based on the real-time environmental images and the real-time number of animals, reflecting the distribution of animals per unit space. The livestock farm area is further determined based on the real-time environmental images, and the animal activity intensity in each area is evaluated. At the same time, through gas monitoring information, combined with real-time environmental images, the gas type and its concentration in each area are determined to provide a calculation basis for the subsequent calculation of real-time circulation. Combining parameters such as activity intensity and gas concentration, the real-time circulation is calculated using a formula to measure the flow rate of the gas. The adjustment constants and variables in the formula work together to ensure that the calculation of real-time circulation can accurately reflect the real-time environment and animal dynamics inside the livestock farm. The real-time circulation is incorporated into the real-time flow information, providing an accurate control basis for the negative pressure ventilation system.

[0011] Optionally, the gas monitoring information includes real-time oxygen content in the livestock farm, and determining the gas type of each area and the gas concentration corresponding to the gas type according to the gas monitoring information and the number of areas includes: Determine, according to the real-time environment image, the object type, the object surface area, and the object volume corresponding to the object type in each area; Determine whether the object type generates gas, if the object type generates gas, obtain a gas type set, and determine the gas type according to the gas type set and the object type; The gas concentration is determined according to the surface area of ​​the object, the real-time oxygen content, the volume of the object and the real-time ambient temperature, and is calculated according to the following formula: ; in, represents the gas concentration, Indicates the preset concentration adjustment constant, represents the surface area of ​​the object, Indicates the preset area influence coefficient, represents the volume of the object, Indicates the preset volume influence coefficient, represents the preset temperature influence coefficient, represents the real-time ambient temperature, Indicates the standard oxygen concentration, Indicates the real-time oxygen content, Indicates the preset oxygen content influence coefficient.

[0012] Through this solution, the types of objects in the area, their surface areas, and volumes are identified through real-time environmental images to analyze which objects may release gas. For objects that generate gas, the type of gas released is determined based on the gas type set. Using these data, the gas concentration is calculated using a specific formula, which includes variables such as the surface area, volume, oxygen content, and ambient temperature of the object. The preset concentration adjustment constant, preset area influence coefficient, preset volume influence coefficient, preset temperature influence coefficient, and preset oxygen content influence coefficient in the formula ensure that the calculation of gas concentration can reflect the gas release characteristics of each object and the impact of environmental changes. Through the calculation of standard oxygen concentration and real-time oxygen content, the gas concentration is further adjusted to achieve dynamic monitoring of gas concentration, providing a more accurate decision-making basis for negative pressure ventilation operations in livestock farms.

[0013] Optionally, the external air information includes external air wind speed and external air wind direction, the negative pressure ventilation system information includes the number of vents, vent height, fan speed, maximum fan speed and fan installation height, the real-time flow information includes real-time flow direction, and determining the negative pressure ventilation strategy according to the negative pressure ventilation system information, the external air information and the real-time flow information includes: Determine the real-time extraction volume of air in the livestock farm according to the number of vents, the fan installation height, the maximum fan speed, the fan speed, the fan opening angle, the real-time activity intensity, the real-time flow speed, the real-time ambient humidity and the external air speed; Determining the degree of obstruction of each area to air circulation according to the real-time environmental image and the real-time flow direction; Determine the air ventilation speed flowing through each area according to the blocking degree and the real-time flow rate; Determining a real-time opening angle of the vent according to the vent height, the fan installation height, the external air speed and the external air direction; The real-time opening angle, the air ventilation speed and the real-time exhaust volume are incorporated into the negative pressure ventilation strategy.

[0014] Through this solution, the real-time air extraction volume in the livestock farm is calculated based on the fan speed of the negative pressure fan, the fan installation height, the maximum wind speed of the fan, the number of vents and the fan opening angle, combined with the external air speed of the external environment, to ensure the effectiveness of air flow. Real-time flow information and real-time environmental images help determine the degree of obstruction to air circulation in each area, so as to evaluate which areas have restricted air flow. Based on the degree of obstruction and real-time circulation volume, the air ventilation speed of each area is calculated to ensure that the air is evenly distributed throughout the space. At the same time, considering the external air speed and external air direction, the opening angle of the vent is adjusted to optimize the airflow in and out. Combining factors such as real-time opening angle, air ventilation speed and real-time air extraction volume, a dynamic negative pressure ventilation strategy is formed, and the negative pressure ventilation system in the livestock farm is adjusted in real time according to the negative pressure ventilation strategy, so as to achieve optimal air quality control.

[0015] Optionally, the real-time air extraction volume in the livestock farm is determined according to the number of vents, the fan installation height, the maximum fan speed, the fan speed, the fan opening angle, the real-time activity intensity, the real-time flow speed, the real-time ambient humidity and the external air speed, and is calculated according to the following formula: ; in, Indicates the real-time air extraction volume, Indicates the preset fan constant, represents the fan speed, represents the number of vents, represents the real-time flow speed, Indicates the fan installation height, Indicates the preset fan height factor, represents the real-time activity intensity, represents the real-time ambient humidity, represents the outside air speed, Indicates the preset air velocity coefficient, Indicates the maximum speed of the fan, represents the fan opening angle, Indicates the preset comprehensive flow rate coefficient.

[0016] Through this solution, a comprehensive formula is used to accurately calculate the real-time air extraction volume in the livestock farm to achieve the best ventilation effect. The preset basic parameters such as the fan constant and the number of vents provide the basis for the calculation. The fan speed, fan installation height and fan maximum speed determine the intensity and effect of the airflow, and the influence of the preset fan height coefficient is considered to adjust the influence of the fan installation height on the ventilation efficiency. The real-time activity intensity, real-time flow speed and real-time ambient humidity reflect the dynamically changing air flow in the livestock farm. Combined with the external air speed and the preset air flow coefficient, it ensures that the influence of the external air on the indoor airflow is fully considered. The adjustment of the fan opening angle and the fan speed further refines the speed and distribution of the airflow. Through the multiple parameters of the formula, the real-time air extraction volume accurately reflects the demand for air flow in the livestock farm, thereby achieving dynamic adjustment and maintaining the stability and smoothness of the air quality in the livestock farm.

[0017] Optionally, determining the degree of obstruction of each area to air circulation according to the real-time environment image and the real-time flow direction includes: Determine, according to the real-time environment image, the regional structure of each region, the regional height of each region, and the regional position of each region; Determine the actual flow rate of air when it flows through each area according to the area structure, the location of the area and the height of the area; The blocking degree is determined based on the actual throughput, the real-time flow velocity, and the real-time flow volume.

[0018] Through this solution, the regional structure, regional height and regional location of each area are obtained through real-time environmental images, and the physical characteristics and layout of each area are clarified. Based on these structural and location characteristics, the actual air flow in each area is analyzed. The degree of air flow obstruction in each area is further quantified by combining the calculated actual flow through the real-time flow velocity and real-time flow rate. This process not only ensures an accurate assessment of air flow, but also optimizes ventilation design by dynamically adjusting the degree of obstruction, thereby responding to environmental changes in the livestock farm in real time, ensuring air circulation efficiency, and effectively improving the overall ventilation effect and air quality.

[0019] Optionally, determining the actual flow rate of air when flowing through each area according to the area structure, the location of the area and the height of the area includes: Determine the real-time height of animals in the farm and the area of ​​each area according to the real-time environmental image; Determine the interception volume of the real-time animal height of each area to the real-time flow rate according to the area height, the real-time animal volume, the real-time animal height and the real-time flow rate; The actual throughput is determined based on the hold-up volume, the real-time flow-through volume, and the real-time flow rate.

[0020] Through this solution, the real-time animal height and area of ​​each area in the livestock farm are obtained according to the real-time environmental image, providing basic data for subsequent analysis. Combining the area height, real-time animal volume, real-time animal height and real-time flow rate, the interception volume of the animal on the air circulation is calculated, that is, the impact of the space occupied by the animal on the air flow. By considering the volume and height of the animal, the actual obstruction or interference of the animal on the air flow is reflected. Combining the interception volume, real-time flow rate and real-time flow speed, the actual flow rate of each area is accurately calculated. Not only does it optimize the air circulation pattern, but it also effectively adjusts the parameters of the negative pressure fan to ensure the dynamic balance of the air quality in the livestock farm, thereby improving the air conditioning efficiency of the negative pressure fan.

[0021] Optionally, the negative pressure ventilation system information includes a fan wind speed, the external air information includes an air wind direction angle of the external air, and determining the real-time opening angle of the vent according to the vent height, the fan installation height, the external air wind speed and the external air wind direction includes: Determining the horizontal distance between the vent and the negative pressure fan according to the real-time environmental image; According to the air wind direction angle, the fan wind speed, the vent height, the horizontal distance, the fan installation height, the external air wind speed and the external air wind direction, the real-time opening angle of the vent is determined and calculated according to the following formula: ; in, represents the real-time opening angle, represents the vent height, Indicates the installation height of the fan, represents the horizontal distance, represents the outside air speed, represents the wind speed of the fan, Indicates the air direction angle.

[0022] Through this solution, the horizontal distance between the vent and the negative pressure fan is determined based on the real-time environmental image, providing the necessary spatial parameters for calculation. The real-time opening angle of the vent is accurately calculated by obtaining the air direction angle, fan wind speed, vent height and fan installation height of the external air. The real-time opening angle of the vent is dynamically adjusted to maximize air circulation efficiency and reduce energy consumption. This process ensures the best match between the negative pressure fan and the vent, improves the efficiency of the ventilation system, and helps maintain the air quality of the livestock farm.

[0023] In a second aspect, the present application provides an intelligent ecological breeding system for a livestock farm, the system comprising: A flow information determination module, used to obtain livestock farm information, real-time animal information in the livestock farm, and real-time environmental information in the livestock farm, and determine real-time flow information of gas in the livestock farm based on the real-time animal information, the livestock farm information, and the real-time environmental information; The ventilation strategy determination module is used to obtain negative pressure ventilation system information and external air information, determine the negative pressure ventilation strategy based on the negative pressure ventilation system information, the external air information and the real-time flow information, and perform negative pressure ventilation operations on the livestock farm based on the negative pressure ventilation strategy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0025] Figure 1 A schematic diagram of an application scenario provided for an embodiment of the present application; Figure 2 A flow chart of an intelligent ecological breeding method for a livestock farm provided in one embodiment of the present application; Figure 3 A schematic structural diagram of an intelligent ecological breeding system for a livestock farm provided in one embodiment of the present application. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] In addition, the term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article, unless otherwise specified, generally means that the associated objects before and after are in an "or" relationship.

[0028] The embodiments of the present application are further described in detail below in conjunction with the drawings in the specification.

[0029] Due to the complex environment and areas inside and outside the livestock farm, the ventilation treatment of the negative pressure ventilation system is inconsistent with the actual air circulation conditions in the livestock farm, thereby reducing the air quality in the livestock farm and affecting the healthy growth environment of the animals.

[0030] Based on this, the present application provides an intelligent ecological breeding method and system for a livestock farm, which obtains livestock farm information, real-time animal information and real-time environmental information, integrates this information, and determines the real-time flow information of the gas in the livestock farm, so as to understand the actual circulation of the air. Collect negative pressure ventilation system information and external air information, combine real-time flow information, and determine the negative pressure ventilation strategy to ensure that the ideal air flow and temperature and humidity levels are maintained under different environmental conditions. According to the formulated negative pressure ventilation strategy, the parameters such as the switch of the negative pressure fan, the vent and the wind speed of the negative pressure fan are automatically adjusted to achieve precise negative pressure ventilation operation, optimize air circulation, reduce the accumulation of harmful gases, and provide a healthy and comfortable growth environment for animals in the livestock farm. By dynamically responding to environmental changes in the livestock farm, the breeding efficiency is improved while improving the air quality in the livestock farm.

[0031] Figure 1 A schematic diagram of an application scenario provided for the present application. When using negative pressure ventilation equipment to ventilate a livestock farm, the method provided by the present application is applied to obtain and analyze livestock farm information, real-time animal information in the livestock farm, and real-time environmental information in the livestock farm, and determine real-time flow information; obtain negative pressure ventilation system information and external air information, and determine the negative pressure ventilation strategy based on the negative pressure ventilation system information, external air information, and real-time flow information.

[0032] Specifically, the method provided in the present application is applied to any server, and the server interacts with the negative pressure ventilation system, the real-time monitoring device and the livestock farm management system. The real-time monitoring device can be a device for real-time monitoring of the environment inside and outside the livestock farm, and the real-time monitoring device can include a video monitoring device and a gas monitoring device. The livestock farm management system can be a system for managing and controlling the operation of the livestock farm. The livestock farm management system can include a dynamically stored database, and this database can store dynamic data of the livestock farm. The server obtains and analyzes the livestock farm information of the livestock farm management system, the real-time animal information of the livestock farm management system, the real-time environmental information of the real-time monitoring device, the external air information of the real-time monitoring device, and the negative pressure ventilation system information of the negative pressure ventilation system, thereby determining the negative pressure ventilation strategy, and sending the negative pressure ventilation strategy to the negative pressure ventilation system, and the negative pressure ventilation system performs negative pressure ventilation operations according to the negative pressure ventilation strategy. By obtaining livestock farm information, animal and environmental data in real time, air flow information is determined, thereby realizing dynamic monitoring of gas flow inside the livestock farm. Combined with the negative pressure ventilation system and external air information, the negative pressure ventilation strategy is determined to effectively regulate air circulation while ensuring the sustainability of animal health and breeding environment.

[0033] For specific implementation methods, please refer to the following embodiments.

[0034] Figure 2 This is a flow chart of a livestock farm intelligent ecological breeding method provided by an embodiment of the present application. The method of this embodiment can be applied to the server in the above scenario. Figure 2 As shown, the method includes: S201. Obtain livestock farm information, real-time animal information in the livestock farm, and real-time environmental information in the livestock farm, and determine real-time flow information of gas in the livestock farm based on the real-time animal information, livestock farm information, and real-time environmental information.

[0035] The livestock farm information may be information corresponding to the livestock farm that needs to perform negative pressure ventilation operation. The livestock farm information may include the building height of the livestock farm.

[0036] The real-time animal information may be information corresponding to the animals raised in the livestock farm. The real-time animal information may include the real-time animal volume and the real-time animal number.

[0037] The real-time environmental information may be information about the area in the livestock farm and the environment in which the object is located. The real-time environmental information may include real-time environmental humidity.

[0038] Real-time flow information may include information such as the direction, speed, and height of the air flowing in the livestock farm.

[0039] Specifically, livestock farm information and real-time animal information are obtained from the livestock farm management system. Real-time environmental information is obtained from the real-time monitoring device. The livestock farm area is extracted from the livestock farm information. The real-time environmental humidity is extracted from the real-time environmental information. The real-time animal volume and the real-time animal number are extracted from the real-time animal information. The building height, real-time environmental humidity, real-time animal volume and real-time animal number are analyzed using a mathematical analysis method to obtain the real-time flow velocity of the gas in the livestock farm. The real-time flow velocity is incorporated into the real-time flow information.

[0040] S202, obtaining negative pressure ventilation system information and external air information, determining a negative pressure ventilation strategy based on the negative pressure ventilation system information, external air information and real-time flow information, and performing negative pressure ventilation operations on the livestock farm based on the negative pressure ventilation strategy.

[0041] The negative pressure ventilation system information may be information about parameters corresponding to the equipment constituting the negative pressure ventilation system. The negative pressure ventilation system information may include the ventilation opening area.

[0042] The external air information may be information such as density and velocity of the air outside the livestock farm. The external air information may include external air density.

[0043] The negative pressure ventilation strategy can be a specific strategy determined when negative pressure ventilation is performed on the livestock farm in order to adapt the air circulation conditions in the livestock farm to the actual air circulation demand in the livestock farm.

[0044] Specifically, negative pressure ventilation system information is obtained from the negative pressure ventilation system. External air information is obtained from the real-time monitoring device. The vent area is extracted from the negative pressure ventilation system information. External air density is extracted from the external air information. A mathematical analysis method is used to analyze the vent area, external air density, and the real-time flow velocity obtained in the above step S201 to obtain the negative pressure ventilation time of the negative pressure ventilation system, and the negative pressure ventilation time is incorporated into the negative pressure ventilation strategy.

[0045] Through this solution, farm information, real-time animal information, and real-time environmental information are obtained. By combining this information, the real-time flow information of gas in the farm is determined, so as to understand the actual circulation of air. The negative pressure ventilation system information and external air information are collected, combined with the real-time flow information, so as to determine the negative pressure ventilation strategy to ensure the ideal air flow and temperature and humidity levels under different environmental conditions. According to the formulated negative pressure ventilation strategy, the parameters such as the switch of the negative pressure fan, the vent, and the wind speed of the negative pressure fan are automatically adjusted to achieve precise negative pressure ventilation operation, optimize air circulation, reduce the accumulation of harmful gases, and provide a healthy and comfortable growth environment for animals in the farm. By dynamically responding to environmental changes in the farm, the air quality in the farm is improved while the breeding efficiency is improved.

[0046] In some embodiments, the real-time flow velocity is determined according to the building height, the total air volume, the real-time ambient humidity, the real-time animal volume and the real-time animal number according to formula (1); the real-time flow velocity is incorporated into the real-time flow information: (1) in, Indicates the real-time flow speed, Indicates the preset adjustment constant, Indicates the building height, Indicates the real-time ambient humidity. Indicates the real-time animal volume, Indicates the real-time number of animals. Indicates the total air volume.

[0047] Building height can be the vertical distance between the highest point of the internal space of the livestock farm and the ground.

[0048] The real-time flow velocity may be the velocity at which the air in the livestock farm flows.

[0049] The total air volume may be the maximum volume of air that the interior space of a livestock farm can hold.

[0050] The real-time ambient humidity may be a value corresponding to the water vapor content in the ambient air inside the livestock farm.

[0051] The preset adjustment constant can be a value that affects the calculation result of the real-time flow velocity by adjusting the building height, real-time ambient humidity, real-time animal volume, real-time animal number and total air volume when calculating the real-time flow velocity.

[0052] Specifically, the total air volume is extracted from the livestock farm information. Several historical building heights, several historical total air volumes, several historical real-time environmental humidity, several historical real-time animal volumes, several historical real-time flow speeds and several historical real-time animal numbers are obtained from the livestock farm management system. The linear regression analysis method is used to analyze several historical building heights, several historical total air volumes, several historical real-time environmental humidity, several historical real-time animal volumes, several historical real-time flow speeds and several historical real-time animal numbers to obtain the preset adjustment constant. The mathematical analysis method is used to analyze the building height, total air volume, real-time environmental humidity, real-time animal volume, preset adjustment constant and real-time animal number, and the real-time flow speed is determined according to formula (1), and the real-time flow speed is incorporated into the real-time flow information.

[0053] In formula (1), The role of is to adjust the scale of the formula to adapt it to the specific conditions of different livestock farms. Because the structure, ventilation system, climate conditions, etc. of each livestock farm may be very different, the flow velocity calculated using the theoretical formula alone is often not completely accurate. Constant It is used to calibrate this difference. Reflects the building height and ambient humidity Impact on real-time air flow speed: building height The higher it is, the larger the air flow space is and the greater the real-time flow speed is. Therefore, the building height is directly proportional to the real-time flow speed. Real-time ambient humidity The real-time flow velocity is affected by the square root relationship. When the real-time ambient humidity is high, the air density increases, the flow resistance increases, and the real-time flow velocity is suppressed. The square root form indicates that the influence of the real-time ambient humidity has a mitigating effect. As the real-time ambient humidity increases, the change in the real-time flow velocity decreases. Describes the effect of animal size and number on air flow: Represents the space occupied by animals. Larger animals and more animals take up more air space. The presence of animals reduces the space available for air to flow through the farm, thus affecting the efficiency of air flow. The total air volume is expressed in inverse form. The more animals there are, the lower the real-time flow rate is.

[0054] Through this solution, the real-time flow velocity is calculated using the given formula based on the building height, total air volume, real-time ambient humidity, real-time animal volume and real-time animal number of the livestock farm. The adjustment constants and variables in the formula work together to reflect the impact of the environment and animal activities in the livestock farm on the airflow. Specifically, the building height and total air volume affect the overall diffusion capacity of the gas, while the real-time ambient humidity, animal volume and animal number affect the resistance and rate of gas flow. Through this dynamic calculation, the real-time flow velocity of the airflow is obtained in real time, providing an accurate basis for the subsequent negative pressure ventilation strategy. The real-time flow velocity will be incorporated into the real-time flow information of the negative pressure ventilation system to ensure the maximization of the negative pressure ventilation effect, thereby creating a more comfortable and healthy growth environment for animals.

[0055] In some embodiments, a real-time environmental image of the livestock farm is obtained, and the real-time animal density is determined based on the real-time environmental image and the real-time number of animals; the number of regions in the livestock farm and the real-time activity intensity of the animals in the livestock farm are determined based on the real-time environmental image; the gas type and the gas concentration corresponding to the gas type in each region are determined based on the gas monitoring information and the number of regions; the real-time flow volume is determined based on the real-time activity intensity, gas concentration, real-time animal density, real-time environmental temperature and building height according to formula (2); and the real-time flow volume is incorporated into the real-time flow information: (2) in, Indicates the real-time circulation volume. Indicates the preset flow adjustment constant, Indicates real-time activity intensity. Indicates the preset concentration influence coefficient, Indicates the gas concentration, Indicates the preset temperature influence coefficient, Indicates the real-time ambient temperature. Indicates the preset density influence coefficient, Indicates real-time animal density, Indicates the building height.

[0056] The real-time environment image may be an image corresponding to the environment constituted by the area and objects in the livestock farm.

[0057] Real-time animal density indicates how densely packed animals are on a farm.

[0058] The real-time activity intensity may be a numerical value corresponding to the comprehensive behavioral performance of the movement frequency and movement intensity of animals in a livestock farm.

[0059] The number of regions may be the number corresponding to all types of regions in the livestock farm.

[0060] The real-time flow rate may be the volume corresponding to each type of gas flowing through each area.

[0061] The preset flow adjustment constant may be a value that adjusts the real-time activity intensity, gas concentration, real-time animal density, real-time ambient temperature and building height to affect the real-time flow calculation result.

[0062] The preset concentration influence coefficient may be a value of the effect of the gas concentration on the real-time flow rate calculation result.

[0063] The preset temperature influence coefficient may be a value of the influence of the real-time ambient temperature on the real-time flow calculation result.

[0064] The preset density influence coefficient may be a value of the influence of the real-time animal density on the real-time flow calculation result.

[0065] Specifically, the real-time animal density is extracted from the real-time animal information. The real-time environment image is obtained from the video surveillance equipment, and the real-time environment image is analyzed using the contour recognition algorithm to obtain the animal activity area. The real-time animal number is divided by the animal activity area to obtain the real-time animal density. The real-time environment image is analyzed using the feature recognition algorithm to obtain the number of regions. The real-time environment image is analyzed using the deep learning algorithm to obtain the real-time activity intensity. The gas monitoring information is obtained from the gas monitoring equipment. Based on the number of regions obtained in the above steps, the gas type of each region, the gas concentration corresponding to the gas type of each region, and the real-time ambient temperature in the livestock farm are extracted from the gas monitoring information. The historical real-time activity intensity, historical gas concentration, historical real-time animal density, historical real-time ambient temperature, historical building height, and historical real-time circulation are obtained from the livestock farm management system, and the historical real-time activity intensity, historical gas concentration, historical real-time animal density, historical real-time ambient temperature, historical building height, and historical real-time circulation obtained in the above steps are calculated to obtain the preset circulation adjustment constant, preset concentration influence coefficient, preset temperature influence coefficient, and preset density influence coefficient. In the process of calculating the preset flow adjustment constant, preset concentration influence coefficient, preset temperature influence coefficient and preset density influence coefficient, linear regression analysis method, regression tree analysis method, random forest analysis method and neural network regression analysis method can be used to calculate and obtain. The mathematical analysis method is used to analyze the real-time activity intensity, gas concentration, real-time animal density, real-time ambient temperature, building height, preset flow adjustment constant, preset concentration influence coefficient, preset temperature influence coefficient and preset density influence coefficient, and the real-time flow is determined according to formula (2), and the real-time flow is included in the real-time flow information.

[0066] In formula (2), Used to adjust the dimensions and unit consistency of the entire formula. It can help adjust the impact of all factors to match the actual air flow. Indicates a positive impact on real-time circulation. middle: Inhibits air flow. The higher the density, the less fluid the air will flow. The increased gas concentration will make the air more viscous, which will make it harder to flow. Use the inverse function Because with As the pressure increases, the air flow inhibition effect gradually increases. Decided The strength of the effect on the flux. Use a proportional function This is because temperature has a direct impact on air fluidity. Increased temperature reduces air density, thereby enhancing fluidity. Determines how quickly an increase in temperature will enhance the real-time flux. Uses an inverse function This means that as animal density increases As the density increases, the air circulation is gradually suppressed; the higher the density, the smaller the circulation. Determines the intensity of the inhibition of animal density on flux.

[0067] Through this solution, real-time environmental images are obtained, and the real-time animal density is calculated based on the real-time environmental images and the real-time number of animals, reflecting the distribution of animals per unit space. The livestock farm area is further determined based on the real-time environmental images, and the animal activity intensity in each area is evaluated. At the same time, through gas monitoring information, combined with real-time environmental images, the gas type and its concentration in each area are determined to provide a calculation basis for the subsequent calculation of real-time circulation. Combining parameters such as activity intensity and gas concentration, the real-time circulation is calculated using a formula to measure the flow rate of the gas. The adjustment constants and variables in the formula work together to ensure that the calculation of real-time circulation can accurately reflect the real-time environment and animal dynamics inside the livestock farm. The real-time circulation is incorporated into the real-time flow information, providing an accurate control basis for the negative pressure ventilation system.

[0068] In some embodiments, the object type, the object surface area, and the object volume corresponding to the object type in each area are determined based on the real-time environmental image; whether the object type generates gas is determined; if the object type generates gas, a gas type set is obtained, and the gas type is determined based on the gas type set and the object type; the gas concentration is determined based on the object surface area, the real-time oxygen content, the object volume, and the real-time environmental temperature according to formula (3): (3) in, Indicates the gas concentration, Indicates the preset concentration adjustment constant, represents the surface area of ​​an object, Indicates the preset area influence coefficient, Represents the volume of an object, Indicates the preset volume influence coefficient, Indicates the preset temperature influence coefficient, Indicates the real-time ambient temperature. Indicates the standard oxygen concentration, Indicates real-time oxygen content. Indicates the preset oxygen content influence coefficient.

[0069] The gas type set may be a set consisting of types of gases generated by each type of object in each area of ​​the livestock farm.

[0070] The real-time oxygen content may be the content corresponding to the oxygen in the air inside the livestock farm.

[0071] The preset concentration adjustment constant may be a value that adjusts the surface area of ​​the object, the real-time oxygen content, the volume of the object, and the real-time ambient temperature to affect the gas concentration calculation result.

[0072] The preset area influence coefficient may be a value of the effect of the surface area of ​​the object on the calculation result of the gas concentration.

[0073] The preset volume influence coefficient may be a value of the effect of the object volume on the gas concentration calculation result.

[0074] The preset oxygen content influence coefficient may be a value of the influence of the real-time oxygen content on the gas concentration calculation result.

[0075] Specifically, the real-time environmental image is analyzed using a feature recognition algorithm to obtain the object type, object surface area and object volume in each area. All possible objects and their gas generation possibilities are obtained from the object research website, and all possible objects and their gas generation possibilities are integrated to obtain a preset object gas set. The object gas set obtained in the above steps is matched with the preset object gas set. If the possibility of generating gas matching the object type is not 0, it is determined that the object type in each area obtained in the above steps generates gas. Real-time oxygen content is obtained from gas monitoring information. A gas type set is obtained from the livestock farm management system, and the object type is matched with the gas type set to obtain the gas type corresponding to the gas generated by the object type. The historical object surface area, historical real-time oxygen content, historical object volume, historical real-time environmental temperature and historical gas concentration are obtained from the livestock farm management system, and the historical object surface area, historical real-time oxygen content, historical object volume, historical real-time environmental temperature and historical gas concentration obtained in the above steps are calculated to obtain a preset concentration adjustment constant, a preset area influence coefficient, a preset volume influence coefficient and a preset oxygen content influence coefficient. In the process of calculating the preset concentration adjustment constant, the preset area influence coefficient, the preset volume influence coefficient and the preset oxygen content influence coefficient, the linear regression analysis method, the regression tree analysis method, the random forest analysis method and the neural network regression analysis method can be used to calculate and obtain the preset concentration adjustment constant, the preset area influence coefficient, the preset volume influence coefficient, the preset temperature influence coefficient, the preset oxygen content influence coefficient and the standard oxygen concentration. The mathematical analysis method is used to analyze the surface area of ​​the object, the real-time oxygen content, the object volume, the real-time ambient temperature, the preset concentration adjustment constant, the preset area influence coefficient, the preset volume influence coefficient, the preset temperature influence coefficient, the preset oxygen content influence coefficient and the standard oxygen concentration to obtain the gas concentration, and the gas concentration is calculated according to formula (3) to obtain the gas concentration.

[0076] In formula (3), The existence of makes the formula adaptable to different fermentation objects or different environmental conditions, ensuring that the formula can reflect the actual changes in gas concentration in reality. middle: The influence of ,in It is greater than 1, indicating that the increase in the surface area of ​​the object has an accelerating effect on the gas concentration (power law growth). The influence of To indicate that is a negative influence coefficient. Less than 1, indicating The degree to which the gas concentration decreases when it increases. It reflects the synergistic effect of the surface area and volume of objects during the fermentation process. The power form of the object makes the influence of the surface area and volume of the object on the gas concentration more consistent with the actual situation and avoids the linear assumption. Chinese: Increasing the temperature usually speeds up the fermentation process, resulting in more gas production. To reflect the inhibitory effect of real-time oxygen content on gas concentration, In the form of: near When , this term approaches 1 and has little effect on gas concentration. When is smaller, the value of this item will be greater than 1, indicating that low oxygen concentration promotes the increase of gas concentration. The larger it is, the more significant the impact of the real-time oxygen content on the gas concentration calculation results.

[0077] Through this solution, the types of objects in the area, their surface areas, and volumes are identified through real-time environmental images to analyze which objects may release gas. For objects that generate gas, the type of gas released is determined based on the gas type set. Using these data, the gas concentration is calculated using a specific formula, which includes variables such as the surface area, volume, oxygen content, and ambient temperature of the object. The preset concentration adjustment constant, preset area influence coefficient, preset volume influence coefficient, preset temperature influence coefficient, and preset oxygen content influence coefficient in the formula ensure that the calculation of gas concentration can reflect the gas release characteristics of each object and the impact of environmental changes. Through the calculation of standard oxygen concentration and real-time oxygen content, the gas concentration is further adjusted to achieve dynamic monitoring of gas concentration, providing a more accurate decision-making basis for negative pressure ventilation operations in livestock farms.

[0078] In some embodiments, the real-time air extraction volume in the livestock farm is determined based on the number of vents, fan installation height, maximum fan speed, fan speed, fan opening angle, real-time activity intensity, real-time flow speed, real-time ambient humidity and external air speed; the degree of obstruction to air circulation in each area is determined based on the real-time environmental image and real-time flow direction; the air ventilation speed flowing through each area is determined based on the degree of obstruction and the real-time flow volume; the real-time opening angle of the vent is determined based on the vent height, fan installation height, external air speed and external air direction; the real-time opening angle, air ventilation speed and real-time extraction volume are incorporated into the negative pressure ventilation strategy.

[0079] The fan installation height may be the vertical distance between the position of the negative pressure fan on the wall and the ground.

[0080] The maximum fan speed may be the rotation speed of the fan blades when the negative pressure fan is running at maximum power.

[0081] The fan opening angle may be an angle formed by the fan opening direction of the negative pressure fan and the wall on which the fan is located.

[0082] The real-time air extraction volume may be the volume of air extracted by the negative pressure fan when the air in the livestock farm is extracted.

[0083] The real-time flow direction may be the direction in which the air in the livestock farm flows.

[0084] The degree of obstruction may be a numerical value corresponding to the strength of the obstruction to air flow in an area within a livestock farm.

[0085] Air ventilation velocity can be the speed at which air flows through each area in a livestock farm.

[0086] The real-time opening angle may be an angle formed between the opening direction of the vent and the wall of the livestock farm.

[0087] Specifically, the external air speed and external air direction are extracted from the external air information. The number of vents, vent height, fan speed, maximum fan speed and fan installation height are extracted from the negative pressure ventilation system information. The real-time air extraction volume of the air in the livestock farm is determined by using a mathematical analysis method for the number of vents, fan installation height, maximum fan speed, fan speed, fan opening angle, real-time activity intensity, real-time flow speed, real-time ambient humidity and external air speed. The real-time environmental image is analyzed using an image analysis method to obtain the location and area of ​​each area in the livestock farm. The location, real-time flow direction and area of ​​the area are analyzed using computational fluid dynamics technology to obtain the degree of obstruction. The degree of obstruction and real-time flow volume are analyzed using a mathematical analysis method to determine the air ventilation speed flowing through each area. The vent height, fan installation height, external air speed and external air direction are analyzed using a mathematical analysis method to obtain the real-time opening angle of the vent. The real-time opening angle, air ventilation speed and real-time air extraction volume are incorporated into the negative pressure ventilation strategy.

[0088] Through this solution, the real-time air extraction volume in the livestock farm is calculated based on the fan speed of the negative pressure fan, the fan installation height, the maximum wind speed of the fan, the number of vents and the fan opening angle, combined with the external air speed of the external environment, to ensure the effectiveness of air flow. Real-time flow information and real-time environmental images help determine the degree of obstruction to air circulation in each area, so as to evaluate which areas have restricted air flow. Based on the degree of obstruction and real-time circulation volume, the air ventilation speed of each area is calculated to ensure that the air is evenly distributed throughout the space. At the same time, considering the external air speed and external air direction, the opening angle of the vent is adjusted to optimize the airflow in and out. Combining factors such as real-time opening angle, air ventilation speed and real-time air extraction volume, a dynamic negative pressure ventilation strategy is formed, and the negative pressure ventilation system in the livestock farm is adjusted in real time according to the negative pressure ventilation strategy, so as to achieve optimal air quality control.

[0089] In some embodiments, the real-time extraction volume of air in the livestock farm is determined according to formula (4) based on the number of vents, fan installation height, fan maximum speed, fan speed, fan opening angle, real-time activity intensity, real-time flow speed, real-time ambient humidity and external air speed: (4) in, Indicates the real-time suction volume, Indicates the preset fan constant, Indicates the fan speed. Indicates the number of vents, Indicates the real-time flow speed, Indicates the fan installation height. Indicates the preset fan height factor, Indicates real-time activity intensity. Indicates the real-time ambient humidity. represents the external air speed, Indicates the preset air velocity coefficient, Indicates the maximum speed of the fan. Indicates the fan opening angle, Indicates the preset comprehensive flow rate coefficient.

[0090] The preset fan constant may be a value corresponding to the effect of the negative pressure fan's working parameters on the real-time air extraction volume calculation result.

[0091] The preset fan height coefficient may be a value corresponding to the effect of the fan installation height on the real-time exhaust volume calculation result.

[0092] The preset air flow rate coefficient may be a value corresponding to the effect of the real-time flow rate on the calculation result of the real-time air extraction volume.

[0093] The preset comprehensive flow rate coefficient may be a value corresponding to the comprehensive impact of the real-time flow velocity and the external air flow rate on the real-time air extraction volume calculation result.

[0094] Specifically, the historical number of vents, historical fan installation height, historical fan maximum speed, historical fan speed, historical fan opening angle, historical real-time activity intensity, historical real-time flow speed, historical real-time ambient humidity, historical external air speed and historical air extraction volume are obtained from the livestock farm management system, and the historical number of vents, historical fan installation height, historical fan maximum speed, historical fan speed, historical fan opening angle, historical real-time activity intensity, historical real-time flow speed, historical real-time ambient humidity, historical external air speed and historical air extraction volume obtained in the above steps are calculated to obtain a preset fan constant, a preset fan height coefficient, a preset air flow rate coefficient and a preset comprehensive flow rate coefficient. In the process of calculating the preset fan constant, the preset fan height coefficient, the preset air flow rate coefficient and the preset comprehensive flow rate coefficient, a linear regression analysis method, a regression tree analysis method, a random forest analysis method and a neural network regression analysis method can be used for calculation. The mathematical analysis method is used to analyze the number of vents, fan installation height, maximum fan speed, fan speed, fan opening angle, real-time activity intensity, real-time flow speed, real-time ambient humidity, external air speed, preset fan constant, preset fan height coefficient, preset air flow rate coefficient and preset comprehensive flow rate coefficient. The real-time air extraction volume is calculated according to formula (4).

[0095] In formula (4), Used to adjust the standard capacity of the negative pressure fan. Different negative pressure fans have different designs and technologies. It will be different. The larger the fan is, the more channels there are for air to circulate. The number of vents determines the efficiency of air flow. As the fan is installed at an increased height, the resistance to air flow usually increases, so it is necessary to use To reduce the increase in suction volume. This shows that as the installation height increases, the fan exhaust efficiency decreases. To compensate changes. It illustrates the actual working efficiency of the negative pressure fan at the current speed. The larger it is, the stronger the suction capacity is. It reflects the influence of the fan opening angle. By calculating the ratio of the fan opening angle to the maximum value of 90 degrees, it ensures that the influence of the fan opening angle change on the real-time exhaust volume is relative. It is a linear increment. The more active the animal is, the greater the air flow rate is required. If the real-time air flow rate is faster, the efficiency of the negative pressure fan will decrease. The influence of the real-time flow velocity of air on the real-time exhaust volume makes the contribution to the real-time exhaust volume decrease when the real-time flow velocity is larger. When it is higher, the density of the air increases, thereby increasing the resistance to air flow and reducing the suction capacity of the negative pressure fan. Therefore, the impact of real-time ambient humidity is negatively correlated. The higher it is, the lower the real-time pumping volume. Middle: If the outside air speed is high and different from the real-time flow speed in the livestock farm, the suction effect of the negative pressure fan will be affected. The suction efficiency of the negative pressure fan is corrected by adjusting the difference between the external air speed and the real-time flow speed.

[0096] Through this solution, a comprehensive formula is used to accurately calculate the real-time air extraction volume in the livestock farm to achieve the best ventilation effect. The preset basic parameters such as the fan constant and the number of vents provide the basis for the calculation. The fan speed, fan installation height and fan maximum speed determine the intensity and effect of the airflow, and the influence of the preset fan height coefficient is considered to adjust the influence of the fan installation height on the ventilation efficiency. The real-time activity intensity, real-time flow speed and real-time ambient humidity reflect the dynamically changing air flow in the livestock farm. Combined with the external air speed and the preset air flow coefficient, it ensures that the influence of the external air on the indoor airflow is fully considered. The adjustment of the fan opening angle and the fan speed further refines the speed and distribution of the airflow. Through the multiple parameters of the formula, the real-time air extraction volume accurately reflects the demand for air flow in the livestock farm, thereby achieving dynamic adjustment and maintaining the stability and smoothness of the air quality in the livestock farm.

[0097] In some embodiments, the regional structure of each area, the regional height of each area and the regional position of each area are determined based on the real-time environmental image; the actual flow rate of air when circulating in each area is determined based on the regional structure, the regional position and the regional height; the degree of blocking is determined based on the actual flow rate, the real-time flow speed and the real-time circulation volume.

[0098] The actual throughput can be the volume of air flowing to the next area after passing through each area in the livestock farm.

[0099] Real-time flow can be the volume of air passing through each area in the farm.

[0100] Specifically, the real-time flow height and real-time flow width of the air are extracted from the real-time flow information. The real-time flow height is subtracted from the area height to obtain the air flow height. Based on the area structure and the location of the area, the real-time flow volume is divided by the real-time flow height and the real-time flow width to obtain the real-time flow length of the air. The real-time flow length, the air flow height and the real-time flow width are multiplied to obtain the actual flow volume. Based on the real-time flow speed, the actual flow volume is divided by the real-time flow volume to obtain the blocking degree.

[0101] Through this solution, the structure, height and location of each area are obtained through real-time environmental images, and the physical characteristics and layout of each area are clarified. Based on these structural and location characteristics, the flow path and actual flow volume of air in each area are analyzed, considering the spatial limitations of the area and the impact of obstacles on the airflow. Through real-time flow speed and real-time flow volume, combined with the calculated actual flow volume, the degree of obstruction of air circulation in each area is further quantified. This process not only ensures an accurate assessment of air flow, but also optimizes ventilation design by dynamically adjusting the degree of obstruction, thereby responding to environmental changes in real time and ensuring air circulation efficiency, thereby effectively improving the overall ventilation effect and air quality.

[0102] In some embodiments, the real-time animal height and the area of ​​each area in the livestock farm are determined based on the real-time environmental image; the retention volume of the real-time animal height for the real-time circulation volume in each area is determined based on the area height, real-time animal volume, real-time animal height and real-time circulation volume; the actual throughput is determined based on the retention volume, real-time circulation volume and real-time flow speed.

[0103] The trapped volume can be the volume of air that is trapped when objects and animals in the livestock area block the passing air and cause the air to be trapped.

[0104] Specifically, the real-time environmental image is analyzed using a feature recognition algorithm to obtain the real-time animal height in the livestock farm and the area of ​​each area. The area height, real-time animal volume, real-time animal height and real-time flow rate are analyzed using a mathematical analysis method to obtain the interception volume of the real-time animal height in each area to the real-time flow rate. The interception volume is multiplied by the real-time flow velocity to obtain the multiplied value. The real-time flow rate is subtracted from the multiplied value to obtain the actual throughput.

[0105] Through this solution, the regional structure, regional height and regional location of each area are obtained through real-time environmental images, and the physical characteristics and layout of each area are clarified. Based on these structural and location characteristics, the actual air flow in each area is analyzed. The degree of air flow obstruction in each area is further quantified by combining the calculated actual flow through the real-time flow velocity and real-time flow rate. This process not only ensures an accurate assessment of air flow, but also optimizes ventilation design by dynamically adjusting the degree of obstruction, thereby responding to environmental changes in the livestock farm in real time, ensuring air circulation efficiency, and effectively improving the overall ventilation effect and air quality.

[0106] In some embodiments, the horizontal distance between the vent and the negative pressure fan is determined based on the real-time environmental image; the real-time opening angle of the vent is determined based on the air wind direction angle, fan wind speed, vent height, horizontal distance, fan installation height, external air speed and external air direction according to formula (5): (5) in, Indicates the real-time opening angle, Indicates the height of the vent. Indicates the fan installation height. represents the horizontal distance, represents the external air speed, Indicates the fan speed, Indicates the air direction angle.

[0107] The real-time opening angle may be an angle formed between the opening direction of the vent and the wall of the livestock farm when the negative pressure fan performs negative pressure ventilation operation on the livestock farm.

[0108] The fan speed may be the flow velocity of the air extracted by the negative pressure fan when the air in the livestock farm is extracted.

[0109] The horizontal distance may be the straight-line distance between the position of the negative pressure fan and the position of the vent on the same horizontal plane.

[0110] The air direction angle may be the angle formed between the outside air direction and the wall where the vent is located.

[0111] Specifically, the fan speed is extracted from the negative pressure ventilation system information, and the air direction angle of the external air is extracted from the external air information. The real-time environmental image is analyzed using an image analysis algorithm to obtain the horizontal distance. The air direction angle, vent height, horizontal distance, fan installation height, external air speed and external air direction are analyzed using a mathematical analysis method, and the real-time opening angle of the vent is determined according to formula (5).

[0112] Among them, in formula (5), the formula is obtained by the inverse tangent function To calculate the real-time opening angle of the vent, the arctangent is a common trigonometric function used to convert the known slope (in formula (5) and The angle is derived from the ratio of Reflects the vertical difference between the vent and the negative pressure fan, which directly affects the direction and speed of air flow. Larger horizontal distance This usually means that the air needs to travel a longer path, resulting in a decrease in wind speed, which requires compensating for the loss in air velocity by adjusting the opening angle of the vents. The relationship between the outside air speed and the fan speed is measured. If the fan speed is high ( ), it means that the negative pressure fan mainly provides airflow. At this time, the wind speed of the fan needs to be considered when adjusting the opening angle. Middle: Air direction angle Affects the air flow path. If the air wind direction angle is large, the airflow deviates from the direction of the vent, resulting in reduced flow efficiency. It is used to consider the impact of air direction angle on the real-time opening angle.

[0113] Through this solution, the real-time animal height and area of ​​each area in the livestock farm are obtained according to the real-time environmental image, providing basic data for subsequent analysis. Combining the area height, real-time animal volume, real-time animal height and real-time flow rate, the interception volume of the animal on the air circulation is calculated, that is, the impact of the space occupied by the animal on the air flow. By considering the volume and height of the animal, the actual obstruction or interference of the animal on the air flow is reflected. Combining the interception volume, real-time flow rate and real-time flow speed, the actual flow rate of each area is accurately calculated. Not only does it optimize the air circulation pattern, but it also effectively adjusts the parameters of the negative pressure fan to ensure the dynamic balance of the air quality in the livestock farm, thereby improving the air conditioning efficiency of the negative pressure fan.

[0114] Figure 3 A schematic diagram of a smart ecological breeding system for a livestock farm provided in one embodiment of the present application is shown in FIG. Figure 3 As shown, the livestock farm intelligent ecological breeding system 300 of this embodiment includes: a flow information determination module 301 and a ventilation strategy determination module 302.

[0115] The flow information determination module 301 is used to obtain the livestock farm information, the real-time animal information in the livestock farm and the real-time environmental information in the livestock farm, and determine the real-time flow information of the gas in the livestock farm according to the real-time animal information, the livestock farm information and the real-time environmental information; The ventilation strategy determination module 302 is used to obtain negative pressure ventilation system information and external air information, determine the negative pressure ventilation strategy based on the negative pressure ventilation system information, the external air information and the real-time flow information, and perform negative pressure ventilation operations on the livestock farm according to the negative pressure ventilation strategy.

[0116] Optionally, the flow information determination module 301 is specifically used to: The real-time flow velocity is determined based on the building height, the total air volume, the real-time ambient humidity, the real-time animal volume and the real-time animal quantity, and is calculated according to the following formula: ; in, represents the real-time flow speed, Indicates the preset adjustment constant, represents the building height, Indicates the real-time ambient humidity. represents the real-time animal volume, Indicates the real-time number of animals, represents said total air volume; The real-time flow speed is incorporated into the real-time flow information.

[0117] Optionally, the flow information determination module 301 is specifically used to: Acquire a real-time environmental image in the livestock farm, and determine the real-time animal density according to the real-time environmental image and the real-time number of animals; Determine the number of areas in the livestock farm and the real-time activity intensity of animals in the livestock farm based on the real-time environmental image; Determine the gas type of each area and the gas concentration corresponding to the gas type according to the gas monitoring information and the number of areas; The real-time flow rate is determined according to the real-time activity intensity, the gas concentration, the real-time animal density, the real-time ambient temperature and the building height, and is calculated according to the following formula: ; in, Indicates the real-time circulation amount, Indicates the preset flow adjustment constant, represents the real-time activity intensity, Indicates the preset concentration influence coefficient, represents the gas concentration, Indicates the preset temperature influence coefficient, represents the real-time ambient temperature, Indicates the preset density influence coefficient, represents the real-time animal density, represents the height of the building; The real-time circulation volume is incorporated into the real-time flow information.

[0118] Optionally, the flow information determination module 301 is specifically used to: Determine, according to the real-time environment image, the object type, the object surface area, and the object volume corresponding to the object type in each area; Determine whether the object type generates gas, if the object type generates gas, obtain a gas type set, and determine the gas type according to the gas type set and the object type; The gas concentration is determined according to the surface area of ​​the object, the real-time oxygen content, the volume of the object and the real-time ambient temperature, and is calculated according to the following formula: ; in, represents the gas concentration, Indicates the preset concentration adjustment constant, represents the surface area of ​​the object, Indicates the preset area influence coefficient, represents the volume of the object, Indicates the preset volume influence coefficient, represents the preset temperature influence coefficient, represents the real-time ambient temperature, Indicates the standard oxygen concentration, Indicates the real-time oxygen content, Indicates the preset oxygen content influence coefficient.

[0119] Optionally, the ventilation strategy determination module 302 is specifically configured to: Determine the real-time extraction volume of air in the livestock farm according to the number of vents, the fan installation height, the maximum fan speed, the fan speed, the fan opening angle, the real-time activity intensity, the real-time flow speed, the real-time ambient humidity and the external air speed; Determining the degree of obstruction of each area to air circulation according to the real-time environmental image and the real-time flow direction; Determine the air ventilation speed flowing through each area according to the blocking degree and the real-time flow rate; Determining a real-time opening angle of the vent according to the vent height, the fan installation height, the external air speed and the external air direction; The real-time opening angle, the air ventilation speed and the real-time exhaust volume are incorporated into the negative pressure ventilation strategy.

[0120] Optionally, the ventilation strategy determination module 302 is specifically configured to: ; in, Indicates the real-time air extraction volume, Indicates the preset fan constant, represents the fan speed, represents the number of vents, represents the real-time flow speed, Indicates the installation height of the fan, Indicates the preset fan height factor, represents the real-time activity intensity, represents the real-time ambient humidity, represents the outside air speed, Indicates the preset air velocity coefficient, Indicates the maximum speed of the fan, represents the fan opening angle, Indicates the preset comprehensive flow rate coefficient.

[0121] Optionally, the ventilation strategy determination module 302 is specifically configured to: Determine, according to the real-time environment image, the regional structure of each region, the regional height of each region, and the regional position of each region; Determine the actual flow rate of air when it flows through each area according to the area structure, the location of the area and the height of the area; The blocking degree is determined based on the actual throughput, the real-time flow velocity, and the real-time flow volume.

[0122] Optionally, the ventilation strategy determination module 302 is specifically configured to: Determine the real-time height of animals in the farm and the area of ​​each area according to the real-time environmental image; Determine the interception volume of the real-time animal height of each area to the real-time flow rate according to the area height, the real-time animal volume, the real-time animal height and the real-time flow rate; The actual throughput is determined based on the hold-up volume, the real-time flow-through volume, and the real-time flow rate.

[0123] Optionally, the ventilation strategy determination module 302 is specifically configured to: Determining the horizontal distance between the vent and the negative pressure fan according to the real-time environmental image; According to the air wind direction angle, the fan wind speed, the vent height, the horizontal distance, the fan installation height, the external air wind speed and the external air wind direction, the real-time opening angle of the vent is determined and calculated according to the following formula: ; in, represents the real-time opening angle, represents the vent height, Indicates the installation height of the fan, represents the horizontal distance, represents the outside air speed, represents the wind speed of the fan, Indicates the air direction angle.

[0124] The system of this embodiment can be used to execute the method of any of the above embodiments. The implementation principles and technical effects are similar and will not be described in detail here.

Claims

1. An intelligent ecological breeding method for livestock farms, characterized in that: include: Acquire livestock farm information, real-time animal information in the livestock farm, and real-time environmental information in the livestock farm, and determine real-time flow information of gas in the livestock farm based on the real-time animal information, the livestock farm information, and the real-time environmental information; Obtain negative pressure ventilation system information and external air information, determine a negative pressure ventilation strategy based on the negative pressure ventilation system information, the external air information and the real-time flow information, and perform negative pressure ventilation operations on the livestock farm based on the negative pressure ventilation strategy.

2. The method according to claim 1, characterized in that The livestock farm information includes the building height of the livestock farm and the total air volume of the livestock farm, the real-time animal information includes the real-time number of animals and the real-time animal volume, and the real-time environmental information includes the real-time environmental humidity in the livestock farm. The real-time flow information of the gas in the livestock farm is determined based on the real-time animal information, the livestock farm information and the real-time environmental information, including: The real-time flow velocity is determined based on the building height, the total air volume, the real-time ambient humidity, the real-time animal volume and the real-time animal quantity, and is calculated according to the following formula: ； in, represents the real-time flow speed, Indicates the preset adjustment constant, represents the building height, Indicates the real-time ambient humidity. represents the real-time animal volume, Indicates the real-time number of animals, represents said total air volume; The real-time flow speed is incorporated into the real-time flow information.

3. The method according to claim 2, characterized in that The real-time environmental information includes the real-time environmental temperature in the livestock farm, the real-time environmental information includes the gas monitoring information in the livestock farm, and the real-time flow information of the gas in the livestock farm is determined according to the real-time animal information, the livestock farm information and the real-time environmental information, including: Acquire a real-time environmental image in the livestock farm, and determine the real-time animal density according to the real-time environmental image and the real-time number of animals; Determine the number of areas in the livestock farm and the real-time activity intensity of animals in the livestock farm based on the real-time environmental image; Determine the gas type of each area and the gas concentration corresponding to the gas type according to the gas monitoring information and the number of areas; The real-time flow rate is determined according to the real-time activity intensity, the gas concentration, the real-time animal density, the real-time ambient temperature and the building height, and is calculated according to the following formula: ； in, represents the real-time circulation amount, Indicates the preset flow adjustment constant, represents the real-time activity intensity, Indicates the preset concentration influence coefficient, represents the gas concentration, Indicates the preset temperature influence coefficient, represents the real-time ambient temperature, Indicates the preset density influence coefficient, represents the real-time animal density, represents the height of the building; The real-time circulation volume is incorporated into the real-time flow information.

4. The method according to claim 3, characterized in that The gas monitoring information includes the real-time oxygen content in the livestock farm, and the gas type and the gas concentration corresponding to the gas type in each area are determined according to the gas monitoring information and the number of areas, including: Determine, according to the real-time environment image, the object type, the object surface area, and the object volume corresponding to the object type in each area; Determine whether the object type generates gas, if the object type generates gas, obtain a gas type set, and determine the gas type according to the gas type set and the object type; The gas concentration is determined according to the surface area of ​​the object, the real-time oxygen content, the volume of the object and the real-time ambient temperature, and is calculated according to the following formula: ； in, represents the gas concentration, Indicates the preset concentration adjustment constant, represents the surface area of ​​the object, Indicates the preset area influence coefficient, represents the volume of the object, Indicates the preset volume influence coefficient, represents the preset temperature influence coefficient, represents the real-time ambient temperature, Indicates the standard oxygen concentration, Indicates the real-time oxygen content, Indicates the preset oxygen content influence coefficient.

5. The method according to claim 4, characterized in that The external air information includes external air wind speed and external air wind direction, the negative pressure ventilation system information includes the number of vents, vent height, fan speed, fan maximum speed and fan installation height, the real-time flow information includes real-time flow direction, and the negative pressure ventilation strategy is determined according to the negative pressure ventilation system information, the external air information and the real-time flow information, including: Determine the real-time extraction volume of air in the livestock farm according to the number of vents, the fan installation height, the maximum fan speed, the fan speed, the fan opening angle, the real-time activity intensity, the real-time flow speed, the real-time ambient humidity and the external air speed; Determining the degree of obstruction of each area to air circulation according to the real-time environmental image and the real-time flow direction; Determine the air ventilation speed flowing through each area according to the blocking degree and the real-time flow rate; Determining a real-time opening angle of the vent according to the vent height, the fan installation height, the external air speed and the external air direction; The real-time opening angle, the air ventilation speed and the real-time exhaust volume are incorporated into the negative pressure ventilation strategy.

6. The method according to claim 5, characterized in that The real-time air extraction volume in the farm is determined according to the number of vents, the fan installation height, the maximum fan speed, the fan speed, the fan opening angle, the real-time activity intensity, the real-time flow speed, the real-time ambient humidity and the external air speed, and is calculated according to the following formula: ； in, Indicates the real-time air extraction volume, Indicates the preset fan constant, represents the fan speed, represents the number of vents, represents the real-time flow speed, Indicates the installation height of the fan, Indicates the preset fan height factor, represents the real-time activity intensity, represents the real-time ambient humidity, represents the outside air speed, Indicates the preset air velocity coefficient, Indicates the maximum speed of the fan, represents the fan opening angle, Indicates the preset comprehensive flow rate coefficient.

7. The method according to claim 6, characterized in that Determining the degree of obstruction of air circulation by each area according to the real-time environment image and the real-time flow direction includes: Determine, according to the real-time environment image, the regional structure of each region, the regional height of each region, and the regional position of each region; Determine the actual flow rate of air when it flows through each area according to the area structure, the location of the area and the height of the area; The blocking degree is determined based on the actual throughput, the real-time flow velocity, and the real-time flow volume.

8. The method according to claim 7, characterized in that The method of determining the actual flow rate of air when the air flows through each area according to the area structure, the location of the area and the height of the area includes: Determine the real-time height of animals in the farm and the area of ​​each area according to the real-time environmental image; Determine the interception volume of the real-time animal height of each area to the real-time flow rate according to the area height, the real-time animal volume, the real-time animal height and the real-time flow rate; The actual throughput is determined based on the hold-up volume, the real-time flow-through volume, and the real-time flow rate.

9. The method according to claim 8, characterized in that The negative pressure ventilation system information includes the fan wind speed, the external air information includes the air wind direction angle of the external air, and the real-time opening angle of the vent is determined according to the vent height, the fan installation height, the external air wind speed and the external air wind direction, including: Determining the horizontal distance between the vent and the negative pressure fan according to the real-time environmental image; According to the air wind direction angle, the fan wind speed, the vent height, the horizontal distance, the fan installation height, the external air wind speed and the external air wind direction, the real-time opening angle of the vent is determined and calculated according to the following formula: ； in, represents the real-time opening angle, represents the vent height, Indicates the installation height of the fan, represents the horizontal distance, represents the outside air speed, represents the wind speed of the fan, Indicates the air direction angle.

10. An intelligent ecological breeding system for livestock farms, characterized in that: include: A flow information determination module, used to obtain livestock farm information, real-time animal information in the livestock farm, and real-time environmental information in the livestock farm, and determine real-time flow information of gas in the livestock farm based on the real-time animal information, the livestock farm information, and the real-time environmental information; The ventilation strategy determination module is used to obtain negative pressure ventilation system information and external air information, determine the negative pressure ventilation strategy based on the negative pressure ventilation system information, the external air information and the real-time flow information, and perform negative pressure ventilation operations on the livestock farm based on the negative pressure ventilation strategy.

Images