An air conditioning device for high-density pen farming

Abstract

This invention relates to the field of air conditioning technology, specifically to an air conditioning device for high-density livestock farming, solving the technical problem of poor air conditioning performance in existing technologies. The device includes: an upflow mechanism for creating air convection by adjusting the floor temperature of the livestock enclosure; an air exchange mechanism for introducing air from outside the enclosure and extracting air from inside; and an intelligent control mechanism connected to the upflow mechanism and the air exchange mechanism for monitoring environmental parameters and animal distribution data within the enclosure, determining the ventilation rate loss coefficient and effective regulation rate based on these parameters, and adjusting the operating parameters of the air exchange mechanism accordingly. The ventilation rate loss coefficient characterizes the degree to which animal density distribution affects air exchange efficiency, and the effective regulation rate characterizes the degree to which air exchange meets the expected environmental conditions of the livestock enclosure.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and more specifically to an air conditioning device for high-density penned animal husbandry. Background Technology

[0002] In high-density pen farming environments, animal respiration, excretion, and feed residue continuously generate harmful gases such as ammonia, carbon dioxide, and hydrogen sulfide, accompanied by the accumulation of large amounts of hot and humid air. These gases not only affect the healthy growth of animals and reduce farming efficiency but also deteriorate the working environment for farmers, posing a potential threat to human health. Therefore, effectively controlling air quality within the pens through air conditioning devices is a crucial step in ensuring the sustainable operation of high-density pen farming.

[0003] In existing technologies, some air conditioning devices rely on natural ventilation or simple mechanical ventilation, which is insufficient to meet the needs of precise control. Even devices employing advanced sensors and control technologies often rely on linear programming designs with fixed thresholds for their control logic. In the complex environment of high-density livestock pens, this design struggles to address nonlinear issues such as gas deposition and heat island effects, resulting in insufficient ventilation efficiency. Harmful and humid gases cannot be effectively expelled, and over time, this can corrode electronic components and sensors, affecting the device's detection accuracy and lifespan. Overall, the application effect needs improvement. Summary of the Invention

[0004] To address the technical problem of poor air conditioning performance in existing technologies, the present invention aims to provide an air conditioning device for high-density livestock farming, and the specific technical solution adopted is as follows:

[0005] This application provides an air conditioning device for high-density penned animal husbandry, comprising:

[0006] An upflow mechanism is used to create air convection by regulating the floor temperature of the enclosure.

[0007] An air exchange system is used to introduce air from outside the enclosure and to extract air from inside the enclosure.

[0008] The intelligent control mechanism, connected to the airflow mechanism and the air exchange mechanism, is used to monitor environmental parameters and animal distribution data in the enclosure, determine the ventilation rate loss coefficient and effective regulation rate based on the environmental parameters and animal distribution data, and adjust the operating parameters of the air exchange mechanism based on the ventilation rate loss coefficient and the effective regulation rate.

[0009] Among them, the ventilation rate loss coefficient is used to characterize the degree of influence of animal density distribution on air exchange efficiency, and the effective regulation rate is used to characterize the degree of conformity of air exchange to the expected regulation of the enclosure environment.

[0010] In one possible implementation, the flow-up mechanism includes hot water pipes and cold water pipes pre-embedded in the floor of the enclosure;

[0011] Hot water pipes and cold water pipes are used to create a temperature difference on the floor of the enclosure, so that the air rises where the hot water pipes are located and the air sinks where the cold water pipes are located.

[0012] In one possible implementation, the air exchange mechanism includes an air intake device and an air exhaust device; the air intake device includes an external vent, an air intake duct, and an air inlet; the air exhaust device includes an exhaust vent.

[0013] The external ventilation opening is used to connect to the external air source of the enclosure;

[0014] The air intake duct is used to connect the external vent and the air intake.

[0015] The air inlet is used to introduce air from outside the enclosure into the enclosure in a preset airflow direction;

[0016] The exhaust vent is used to extract air from the enclosure.

[0017] In one possible implementation, the air intake device also includes a diverter valve, a humidifier, a humidification channel, and an airflow guide plate;

[0018] The diversion valve is connected to the external vent, the air intake pipe and the humidifier respectively, and is used to control the direction of air diversion;

[0019] Humidifiers are used to regulate air humidity;

[0020] The humidification channel is used to connect the humidifier and the airflow guide plate;

[0021] Airflow guide plates are used to introduce air from the humidification channel into the enclosure from multiple directions.

[0022] In one possible implementation, the exhaust device also includes an exhaust pipe and a gas processing device;

[0023] The exhaust duct is used to connect the air vent and the gas handling device;

[0024] Gas processing equipment is used to filter and purify the extracted air.

[0025] In one possible implementation, the intelligent control mechanism includes a sensor subsystem, a visual monitoring subsystem, and a processing unit;

[0026] The sensor subsystem is used to monitor environmental parameters inside the enclosure in real time; these parameters include air intake per unit time, harmful gas concentration data, temperature data, and humidity data.

[0027] The visual monitoring subsystem is used to collect real-time video data of the enclosures through cameras in order to obtain animal distribution data;

[0028] The processing unit is used to determine the ventilation rate loss coefficient and effective regulation rate based on environmental parameters and animal distribution data, and to adjust the operating parameters of the air exchange mechanism based on the ventilation rate loss coefficient and effective regulation rate.

[0029] In one possible implementation, the processing unit is specifically used for:

[0030] Calculate the characteristic values ​​of animal density distribution based on animal distribution data;

[0031] The ineffective exchange factor is calculated based on the intake volume and harmful gas concentration data per unit time.

[0032] The ventilation rate loss coefficient is determined based on the correlation between animal density distribution characteristics and ineffective exchange factors.

[0033] Among them, the animal density distribution characteristic value is used to characterize the degree of aggregation of animal distribution, and the ineffective exchange factor is used to characterize the degree of ineffectiveness of the air exchange process in the enclosure in the discharge of harmful gases.

[0034] In one possible implementation, the processing unit is specifically used for:

[0035] The ventilation rate is determined based on the air intake per unit time and the volume of the enclosure.

[0036] Determine the rate of change of harmful gas concentration based on harmful gas concentration data;

[0037] The ineffective exchange factor is determined based on the ventilation rate and the rate of change of harmful gas concentration.

[0038] In one possible implementation, the processing unit is specifically used for:

[0039] Based on the temperature and humidity data, generate temperature change curves and humidity change curves respectively;

[0040] The effective regulation rate is determined based on the smoothness of the trends in the temperature and humidity change curves.

[0041] Trend smoothness is evaluated by the characteristics of curve slope variation.

[0042] In one possible implementation, the processing unit is specifically used for:

[0043] Based on animal distribution data, ventilation rate loss coefficient, and effective regulation rate, the air volume regulation coefficient of the air exchange mechanism is determined.

[0044] Adjust the airflow of the air exchange mechanism according to the airflow adjustment coefficient.

[0045] The present invention has the following beneficial effects:

[0046] In view of the technical problem of poor air conditioning effect in existing technologies, this application provides an air conditioning device for high-density pen farming. This air conditioning device includes an upflow mechanism, an air exchange mechanism, and an intelligent control mechanism. Through the synergistic design of these mechanisms, the limitations of traditional linear control logic are overcome. The upflow mechanism can regulate the floor temperature of the pen to create air convection, promoting the rise of hot and humid air within the pen and forming effective airflow circulation. This avoids, to some extent, the problem of low ventilation rate caused by improper design of air inlets and outlets. The air exchange mechanism and the intelligent control mechanism can jointly achieve intelligent air conditioning within the pen. The intelligent control mechanism can dynamically adjust the operating parameters of the air exchange mechanism based on the actual environment and animal distribution within the pen, specifically addressing the problems of gas deposition and insufficient ventilation efficiency in high-density pens. This improves the accuracy and practicality of air conditioning, while also helping to protect device components and extend their service life. Attached Figure Description

[0047] To more clearly illustrate the technical solutions and advantages in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0048] Figure 1 This is a schematic diagram of an air conditioning device for high-density penned animal husbandry provided in one embodiment of the present invention;

[0049] Figure 2 This is a schematic diagram of a current-boosting mechanism provided in one embodiment of the present invention;

[0050] Figure 3 This is a schematic diagram of the structure of an air exchange mechanism provided in one embodiment of the present invention;

[0051] Figure 4 This is a schematic diagram of an air exchange path provided in one embodiment of the present invention;

[0052] Figure 5 This is a schematic diagram of an air intake device provided in one embodiment of the present invention;

[0053] Figure 6 This is a schematic diagram of the structure of an exhaust device provided in one embodiment of the present invention;

[0054] Figure 7This is a schematic diagram of the structure of an intelligent control mechanism provided in one embodiment of the present invention. Detailed Implementation

[0055] To further illustrate the technical means and effects adopted by the present invention to achieve its intended purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, details the specific implementation, structure, features, and effects of an air conditioning device for high-density penned animal husbandry according to the present invention. In the following description, different "one embodiment" or "another embodiment" do not necessarily refer to the same embodiment. Furthermore, specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0056] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0057] In view of the technical problem of poor air conditioning effect in existing technologies, this application provides an air conditioning device for high-density pen farming. This air conditioning device includes an upflow mechanism, an air exchange mechanism, and an intelligent control mechanism. Through the synergistic design of these mechanisms, the limitations of traditional linear control logic are overcome. The upflow mechanism can regulate the floor temperature of the pen to create air convection, promoting the rise of hot and humid air within the pen and forming effective airflow circulation. This avoids, to some extent, the problem of low ventilation rate caused by improper design of air inlets and outlets. The air exchange mechanism and the intelligent control mechanism can jointly achieve intelligent air conditioning within the pen. The intelligent control mechanism can dynamically adjust the operating parameters of the air exchange mechanism based on the actual environment and animal distribution within the pen, specifically addressing the problems of gas deposition and insufficient ventilation efficiency in high-density pens. This improves the accuracy and practicality of air conditioning, while also helping to protect device components and extend their service life.

[0058] The following description, in conjunction with the accompanying drawings, details a specific scheme for an air conditioning device for high-density penned animal husbandry provided by the present invention.

[0059] Please see Figure 1 The illustration shows a schematic diagram of an air conditioning device for high-density livestock farming according to an embodiment of the present invention. The air conditioning device includes an upflow mechanism 10, an air exchange mechanism 20, and an intelligent control mechanism 30. The intelligent control mechanism 30 is connected to both the upflow mechanism 10 and the air exchange mechanism 20, and the three work together to regulate the air environment within the livestock pens.

[0060] The upflow mechanism 10 is used to create air convection by regulating the floor temperature of the enclosure. In this way, the present application can guide the natural flow of air through temperature control, creating favorable conditions for subsequent air exchange and avoiding the impact of direct airflow on the animals.

[0061] It should be noted that high-density farming in enclosures generates a large amount of hot and humid air and harmful gases. These gases typically accumulate around the animals in the enclosure. Directly blowing air onto the animals can frighten them and cause illness. Therefore, in this embodiment, the updraft mechanism 10 promotes air convection within the enclosure, causing the accumulated gases to rise and move away from the animals. This improves the efficiency of harmful gas removal while reducing contact between harmful gases and the animals in the enclosure.

[0062] In some embodiments, combined with Figure 1 ,like Figure 2 As shown, the flow-up mechanism 10 includes a hot water pipe 11 and a cold water pipe 12 pre-embedded in the ground of the enclosure.

[0063] The hot water pipe 11 and the cold water pipe 12 are used to create a temperature difference on the ground of the enclosure, so that the air at the location of the hot water pipe 11 rises and the air at the location of the cold water pipe 12 sinks.

[0064] For example, the hot water pipe 11 and the cold water pipe 12 can be buried below the ground of the enclosure according to a preset layout. For example, a ring layout with the hot water pipe 11 arranged on the inside and the cold water pipe 12 arranged on the outside can be adopted, or a straight-line interval layout can be adopted according to the shape of the enclosure. This application does not limit the specific layout method.

[0065] Hot water pipe 11 raises the temperature of the surrounding ground through hot water circulation, causing the air in that area to expand due to heat, decrease in density, and rise naturally. Cold water pipe 12 lowers the temperature of the surrounding ground through cold water circulation, causing the cold air in that area to increase in density and sink naturally. This airflow driven by temperature difference creates natural convection between the upper and lower layers of the enclosure, which can guide the humid and hot gases and harmful gases deposited around the animals upwards, facilitating the extraction operation of the air exchange mechanism 20.

[0066] In one example, hot water pipe 11 can be connected to a waste heat recovery system or independent heating equipment in a farm, while cold water pipe 12 can be connected to a cooling device. By controlling the temperature of the medium in hot water pipe 11 and cold water pipe 12, the temperature difference between the ground and the air convection rate can be adjusted. For example, in hot seasons, the cooling degree of the medium in cold water pipe 12 can be appropriately increased, and in cold seasons, the temperature of the medium in hot water pipe 11 can be appropriately increased to ensure stable air convection under different climatic conditions.

[0067] Thus, by pre-installing hot water pipes 11 and cold water pipes 12, this application eliminates the need for additional air-blowing devices, avoiding the fright and stress reactions caused to animals by direct airflow. Simultaneously, the temperature-driven natural convection can evenly cover all areas of the enclosure, effectively guiding the rising of deposited gases. This lays the foundation for the subsequent efficient extraction of harmful and humid gases by the air exchange mechanism 20, further enhancing the air environment control within the enclosure.

[0068] The air exchange mechanism 20 is used to introduce air from outside the enclosure and extract air from inside the enclosure. In this way, fresh air from outside the enclosure can be introduced, and hot and humid gases, animal excrement, and ammonia, carbon dioxide, and other harmful gases produced by respiration can be discharged in a timely and effective manner to prevent their accumulation in the air and achieve air exchange between the inside and outside of the enclosure.

[0069] In some embodiments, combined with Figure 1 ,like Figure 3 As shown, the air exchange mechanism 20 includes an air intake device 21 and an exhaust device 22. The air intake device 21 includes an external vent 211, an air intake pipe 212, and an air inlet 213. The exhaust device 22 includes an exhaust port 221.

[0070] Among them, the external ventilation opening 211 is used to connect to the external air source of the enclosure, the air inlet pipe 212 is used to connect the external ventilation opening 211 and the air inlet 213, the air inlet 213 is used to introduce the air outside the enclosure into the enclosure in a preset airflow direction, and the exhaust port 221 is used to extract the air from the enclosure.

[0071] For example, the external vent 211 can be connected to an air pump or face directly towards an open area outside the enclosure to ensure the freshness of the incoming air. A primary filter can be installed at the external vent 211 to filter large particulate impurities in the air and reduce wear on subsequent devices. The airflow direction of the air inlet 213 can be set horizontally, installed above the height of the animals' activity inside the enclosure, driving airflow in the upper part of the enclosure while avoiding direct airflow onto the animals. The exhaust vent 221 can be set at a 45-degree downward angle, with its installation position forming a height difference with the air inlet 213. For example, the air inlet 213 can be installed in the upper middle part of the enclosure wall, and the exhaust vent 221 can be installed in the lower middle part of the enclosure wall. This height difference design can form an airflow circulation channel and improve air exchange efficiency.

[0072] like Figure 4As shown, this application constructs a stable air exchange path through the air exchange mechanism 20. The horizontal airflow blown out by the air inlet 213 pushes the rising hot and humid air towards the exhaust port 221 and prevents the hot and humid air from rising further and damaging the top electronic equipment. After the hot and humid air rises below, a positive pressure gradient is formed above and below. The outside air introduced by the air inlet 213 will gradually sink downward and exchange with the hot and humid air below. Then, the hot and humid air forms a mixed airflow under the push of the horizontal airflow. After reaching the vicinity of the exhaust port 221, it is extracted from the enclosure. The horizontal air intake direction and height difference layout of this application not only ensure that fresh air can be evenly diffused into the enclosure, but also effectively guide the rising hot and humid gas and harmful gas to move towards the exhaust port 221, improving the smoothness of air exchange and further optimizing the air quality in the enclosure.

[0073] The intelligent control mechanism 30 is connected to the upflow mechanism 10 and the air exchange mechanism 20. It is used to monitor the environmental parameters and animal distribution data in the enclosure, determine the ventilation rate loss coefficient and effective regulation rate based on the environmental parameters and animal distribution data, and adjust the operating parameters of the air exchange mechanism 20 based on the ventilation rate loss coefficient and effective regulation rate.

[0074] Among them, the ventilation rate loss coefficient is used to characterize the degree of influence of animal density distribution on air exchange efficiency, and the effective regulation rate is used to characterize the degree of conformity of air exchange to the expected regulation of the enclosure environment.

[0075] Based on the above technical solution, the air conditioning device for high-density pen farming in this application includes an upflow mechanism 10, an air exchange mechanism 20, and an intelligent control mechanism 30. Through the synergistic design of these mechanisms, the limitations of traditional linear control logic are broken. The upflow mechanism 10 can regulate the floor temperature of the pen to create air convection, promoting the rise of hot and humid air within the pen and forming effective airflow circulation. This avoids, to some extent, the problem of low ventilation rate caused by improper design of the air inlet 213 and exhaust vent 221. The air exchange mechanism 20 and the intelligent control mechanism 30 can jointly achieve intelligent air conditioning within the pen. The intelligent control mechanism 30 can dynamically adjust the operating parameters of the air exchange mechanism 20 based on the actual environment and animal distribution within the pen, specifically addressing the problems of gas deposition and insufficient ventilation efficiency in high-density pens. This improves the accuracy and practicality of air conditioning while also helping to protect device components and extend their service life.

[0076] As one possible embodiment of this application, combined with Figure 3 ,like Figure 5 As shown, the air intake device 21 also includes a diverter valve 214, a humidifier 215, a humidification channel 216, and an airflow guide plate 217.

[0077] The diversion valve 214 is connected to the external vent 211, the air inlet pipe 212, and the humidifier 215 respectively, and is used to control the direction of air diversion. For example, the diversion valve 214 can be an electromagnetic control valve, and its opening degree can be adjusted by the command sent by the intelligent control mechanism 30. For example, when the humidity in the pen is suitable, the diversion valve 214 can direct most of the air to the air inlet pipe 212, and when the pen is too dry, it can increase the air flow to the humidifier 215.

[0078] Humidifier 215 is used to regulate air humidity. For example, humidifier 215 can be an ultrasonic humidifier 215 or an evaporative humidifier 215, and its humidification capacity can be dynamically adjusted according to the humidity data in the enclosure. The water source of humidifier 215 can be connected to a purified water pipe to avoid impurities in the water forming scale, which would affect the humidification effect and the life of the equipment.

[0079] The humidification channel 216 connects the humidifier 215 and the airflow guide plate 217. A guide channel can be provided inside the humidification channel 216 to ensure that the water mist is evenly distributed and delivered to the airflow guide plate 217. The humidification channel 216 can be made of a waterproof and corrosion-resistant material to prevent damage from prolonged contact with water mist.

[0080] The airflow guide plate 217 is used to introduce air from the humidification channel 216 into the enclosure from multiple directions. The airflow guide plate 217 is equipped with multiple adjustable-angle guide vanes. For example, the angle of the guide vanes can be controlled by a motor to achieve multi-angle and wide-range diffusion of humidified air, ensuring uniform humidity distribution inside the enclosure.

[0081] This embodiment of the application adds components such as a diversion valve 214, a humidifier 215, a humidification channel 216, and an airflow guide plate 217 to the air intake device 21, enabling the air exchange mechanism 20 to not only have an air exchange function but also achieve precise humidity regulation. When the enclosure is too dry, water mist can be generated by the humidifier 215 and evenly diffused into the enclosure via the airflow guide plate 217, improving the humidity conditions of the breeding environment and meeting the humidity requirements for animal growth. At the same time, the design of the diversion valve 214 allows for flexible switching between air exchange and humidification functions, enhancing the versatility and applicability of the device.

[0082] As one possible embodiment of this application, combined with Figure 3 ,like Figure 6 As shown, the exhaust device 22 also includes an exhaust duct 222 and a gas handling device 223. The exhaust duct 222 is used to connect the exhaust port 221 and the gas handling device 223. The diameter of the exhaust duct 222 can be designed according to the maximum air volume of the exhaust port 221 to ensure smooth airflow and reduce resistance. The arrangement of the exhaust duct 222 should minimize its length and avoid too many bends to reduce the residence time of gas in the duct.

[0083] The gas treatment device 223 is used to filter and purify the extracted air. The gas treatment device 223 may have a multi-layered filtration structure, exemplarily including a particulate filter layer, a harmful gas adsorption layer, and a sterilization layer. The particulate filter layer filters solid impurities such as dust and feed residue from the air; the harmful gas adsorption layer may use adsorption materials such as activated carbon to adsorb harmful gases such as ammonia and hydrogen sulfide; the sterilization layer may use ultraviolet germicidal lamps or photocatalytic materials to kill harmful microorganisms in the air.

[0084] In some embodiments, a gas detection sensor may be installed at the outlet of the gas treatment device 223 to detect the concentration of pollutants in the purified gas. When the detection result meets the standard, the gas is discharged to the external environment. If the standard is not met, the gas treatment device 223 can be controlled to strengthen the purification process through feedback signal, or the exhaust device 22 can be controlled to reduce the air volume to ensure that the discharged gas does not pollute the surrounding environment.

[0085] This embodiment of the application achieves purification of the extracted gas by adding an exhaust pipe 222 and a gas treatment device 223, preventing harmful gases from being directly emitted into the external environment and reducing environmental pollution. Simultaneously, the multi-stage purification structure of the gas treatment device 223 effectively removes impurities, harmful gases, and microorganisms from the gas, improving the quality of the discharged gas and meeting the requirements of environmentally friendly aquaculture.

[0086] As one possible embodiment of this application, combined with Figure 1 ,like Figure 7 As shown, the intelligent control mechanism 30 includes a sensor subsystem 31, a visual monitoring subsystem 32, and a processing unit 33.

[0087] The sensor subsystem 31 is used to monitor environmental parameters inside the enclosure in real time.

[0088] The environmental parameters include air intake per unit time, harmful gas concentration data, temperature data, and humidity data. The sensor subsystem 31 consists of multiple different types of sensors. For example, the harmful gas sensors may include ammonia sensors, carbon dioxide sensors, and hydrogen sulfide sensors; the temperature and humidity sensors may be integrated temperature and humidity sensors. These sensors are evenly distributed in different locations within the enclosure to ensure the comprehensiveness and accuracy of the monitoring data. The sensor subsystem 31 is connected to the processing unit 33 via wired or wireless means to transmit monitoring data in real time.

[0089] The visual monitoring subsystem 32 is used to collect real-time image data within the enclosure via cameras to obtain animal distribution data. The cameras can be high-definition network cameras or infrared cameras, mounted on the crossbeam supports at the top of the enclosure, using a multi-angle layout to ensure coverage of all areas within the enclosure. The visual monitoring subsystem 32 can send the real-time image data to the processing unit 33 via an image transmission module. The processing unit 33 analyzes the image data using image recognition technology to extract distribution information such as the animal's location and number.

[0090] The processing unit 33 is used to determine the ventilation rate loss coefficient and effective regulation rate based on environmental parameters and animal distribution data, and to adjust the operating parameters of the air exchange mechanism 20 based on the ventilation rate loss coefficient and effective regulation rate.

[0091] It should be noted that, in addition to the air convection and air cooperative circulation achieved by the upflow mechanism 10 and the air exchange mechanism 20 mentioned above in this application, there may still be problems with insufficient air conditioning under certain specific circumstances. For example, during actual monitoring, the design of the enclosure space, obstacles and animal behavior may affect air conditioning. Also, when hot air rises, the gathering of animals leads to a local temperature increase, and insufficient sinking and flow of cold air can also lead to the deposition and non-circulation of some hot and humid gases and harmful gases.

[0092] Therefore, in this application, the processing unit 33 can receive data transmitted from the sensor subsystem 31 and the visual monitoring subsystem 32, determine the ventilation rate loss coefficient and the effective regulation rate based on this data, and adjust the operating parameters of the air exchange mechanism 20 according to these two parameters. For example, the processing unit 33 can be a central processing unit with data processing capabilities and computing speed, capable of processing large amounts of monitoring data and image data in real time, and quickly outputting control commands.

[0093] This embodiment of the application, through the collaborative design of the sensor subsystem 31, the visual monitoring subsystem 32, and the processing unit 33, achieves comprehensive monitoring of the environment and animal distribution within the enclosure, as well as intelligent adjustment of the air exchange mechanism 20. The sensor subsystem 31 can accurately capture changes in environmental parameters, the visual monitoring subsystem 32 can acquire the animal distribution status in real time, and the processing unit 33, through comprehensive analysis of these data, provides a scientific basis for the operation and adjustment of the air exchange mechanism 20, ensuring the intelligence and precision of the air conditioning process.

[0094] As one possible embodiment of this application, the ventilation rate loss coefficient can be determined in the following way:

[0095] The processing unit 33 is specifically used to: calculate the animal density distribution characteristic value based on the animal distribution data, and calculate the ineffective exchange factor based on the air intake per unit time and the concentration of harmful gases. Then, based on the correlation between the animal density distribution characteristic value and the ineffective exchange factor, the ventilation rate loss coefficient is determined.

[0096] Among them, the animal density distribution characteristic value is used to characterize the degree of aggregation of animal distribution, and the ineffective exchange factor is used to characterize the degree of ineffectiveness of the air exchange process in the enclosure in the discharge of harmful gases.

[0097] In some embodiments, for the animal density distribution characteristic value, this application can first process the animal distribution data transmitted by the visual monitoring subsystem 32. The animal distribution data can consist of animal images collected at multiple times in the enclosure. This application can segment the outline of each animal from the animal images and determine the centroid of each animal.

[0098] Then, taking the centroid of each animal as the center, obtain the number of centroids of other animals within a preset radius (this preset radius can be adjusted according to the animal species and enclosure size, for example, it can be 2.5m). Divide this number by the area of ​​this range to obtain the local density corresponding to each animal, and determine the animal density distribution characteristic value based on the local density.

[0099] For example, the animal density distribution characteristic values ​​satisfy the following formula:

[0100]

[0101] in, For a moment Animal density distribution characteristics at that time For the first Local density corresponding to each animal For a moment The standard deviation of the local density for each animal at that time. For a moment The mean local density corresponding to each animal at that time. It is a safety parameter used to correct fractions where the denominator is 0, and its dimensions are the same as... The same applies; the specific value can be determined based on... The value of the value determines the outcome, such as . The larger, and The smaller the value, the larger the animal density distribution characteristic value, indicating that the animal distribution is mostly concentrated and a small part is scattered, and the degree of aggregation is higher.

[0102] In some embodiments, for the ineffective exchange factor, the processing unit 33 is specifically used to: determine the air exchange rate based on the air intake per unit time and the pen volume, determine the rate of change of harmful gas concentration based on the harmful gas concentration data, and then determine the ineffective exchange factor based on the air exchange rate and the rate of change of harmful gas concentration.

[0103] For example, an invalid exchange factor satisfies the following formula:

[0104]

[0105] in, For a moment Ineffective exchange factor at that time For a moment The ventilation rate of the enclosure within a given time period can be measured by time intervals. The ratio of the air intake per unit time to the volume of the pen within a given time period is used to represent this ratio. The air intake per unit time can be calculated by the inflow and outflow rates of the gas at the air inlet 213 and the exhaust port within the pen within a given time period (the gas measurement unit is cubic meters, and each 10 minutes is considered a unit time period). For a moment The rate of change of harmful gas concentration over time can be obtained by summing the concentrations of various harmful gases (such as ammonia, hydrogen sulfide, etc.) from the harmful gas concentration data and fitting the data to obtain a curve showing the change of harmful gas concentration over time. The rate of change of harmful gas concentration at time t can be obtained from the harmful gas concentration change curve at time t. The slope is represented by the time interval. This is an inverse proportional normalization function, used to... The value range of is normalized to between 0 and 1. (Time) The higher the ventilation rate of the enclosure and the smaller the rate of change of harmful gas concentration within a given time period, the better. If the harmful gases are not effectively discharged, the extracted gas is mostly fresh air introduced through the air inlet 213. The harmful gases are not effectively discharged due to deposition, and the ineffectiveness of air exchange is higher.

[0106] In some embodiments, this application can determine the animal density distribution characteristic value and ineffective exchange factor at each moment within a unit time period through the above scheme, and perform correlation calculation by using the animal density distribution characteristic value sequence composed of the animal density distribution characteristic value at each moment within a unit time period and the ineffective exchange factor sequence composed of the ineffective exchange factor at each moment within a unit time period to obtain the ventilation rate loss coefficient.

[0107] For example, the ventilation rate loss coefficient satisfies the following formula:

[0108]

[0109] in, This is the ventilation rate loss coefficient. This is a sequence of animal density distribution characteristic values, representing the animal density distribution characteristic values ​​at various points in time within a unit of time period. This is a sequence of invalid exchange factors, consisting of invalid exchange factors at various points in time within a unit of time. This is a correlation function, such as the Pearson correlation coefficient function. The greater the correlation, the greater the impact of animal density distribution on air exchange efficiency, and the higher the percentage of indoor air not being exchanged during air exchange.

[0110] As one possible embodiment of this application, the effective regulation rate can be determined in the following way:

[0111] The processing unit 33 is specifically used to: generate temperature change curves and humidity change curves respectively based on temperature data and humidity data, and then determine the effective regulation rate based on the trend smoothness of the temperature change curves and humidity change curves.

[0112] Trend smoothness is evaluated by the characteristics of curve slope variation.

[0113] In some embodiments, the processing unit 33 is specifically configured to: generate temperature change curves and humidity change curves respectively based on temperature data and humidity data, and determine the effective regulation rate based on the trend smoothness of the temperature change curves and humidity change curves.

[0114] Trend smoothness is evaluated by the characteristics of curve slope variation.

[0115] For example, the smoothness of the temperature change curve satisfies the following formula:

[0116]

[0117] in, For a unit time period in the temperature change curve Within the trend smoothness, unit time period The number of moments within, For a unit time period in the temperature change curve The moment inside The slope at that time For a unit time period in the temperature change curve The slope of the line connecting the two endpoints. For a unit time period in the temperature change curve The slope of the temperature change curve at various times within a unit time period The average of the squares of the differences between the slopes of the lines connecting the two endpoints is the measure of the temperature change over a given time period. The smaller this average value, the more stable the temperature change curve is within a given time period. The better the trend smoothness within.

[0118] Similarly, the smoothness of the humidity change curve can also be calculated using the above method, denoted as . This represents a unit time period in the humidity change curve. The smoothness of the trend within.

[0119] For example, the effective regulation rate satisfies the following formula:

[0120]

[0121] in, unit time period Effective regulation rate within, For a unit time period in the temperature change curve Within the trend smoothness, For each unit time period in the humidity change curve The smoothness of the trend within. This is an inverse proportional normalization function, used for... Perform inverse proportional normalization. It is a logarithmic function. Normalization functions (such as maximum and minimum value normalization) are used to eliminate and The difference in dimensions It is a safety parameter used to correct fractions where the denominator is 0, and its dimensions are the same as... The same applies; the specific value can be determined based on... The value of the value determines the outcome, such as When air exchange is normal within the enclosure, humid and hot air are extracted simultaneously. If the humid and hot air are not extracted synchronously, it indicates that humid and hot air exchange is not occurring properly. Furthermore, since temperature is more easily affected by animal activity, while humidity is relatively stable, during air exchange, the smoothness of the humidity change curve is used as the denominator, and the smoothness of the temperature change curve is used as the numerator. The closer the ratio of these two values ​​is to 1, the more normal the ventilation. The closer to 0, The closer the ratio is to 1, the less likely it is to be positive; conversely, the closer the ratio is to 0 or positive infinity, the less likely it is to be positive. This indicates that proper ventilation has not occurred, resulting in continuous heat accumulation. The closer to positive infinity, The closer it is to 0.

[0122] This embodiment achieves precise calculation of the effective regulation rate by quantifying the synchronicity of temperature and humidity changes. The effective regulation rate can intuitively reflect the effect of air exchange on the enclosure environment, providing an important basis for the treatment unit 33 to adjust the operating parameters of the air exchange mechanism 20, and helping to further improve the targeting and effectiveness of air conditioning.

[0123] As one possible embodiment of this application, the air exchange mechanism 20 can be adjusted in the following way. The processing unit 33 is specifically used to: determine the air volume adjustment coefficient of the air exchange mechanism 20 based on animal distribution data, ventilation rate loss coefficient and effective adjustment rate, and adjust the air volume of the air exchange mechanism 20 according to the air volume adjustment coefficient.

[0124] For example, the air volume adjustment coefficient satisfies the following formula:

[0125]

[0126] in, For the current unit of time period The air volume adjustment coefficient of the internal air exchange mechanism 20 For the previous time period The number of moments within, For the previous time period Inner Time Animal density distribution characteristics at that time This is a normalization function (e.g., maximum-minimum normalization) used to normalize the characteristic values ​​of animal density distribution to between 0 and 1. This is the ventilation rate loss coefficient. For the previous time period Effective regulation rate within, It is a safety parameter used to correct fractions where the denominator is 0, and its dimensions are the same as... The same applies; the specific value can be determined based on... The value of the value determines the outcome, such as . The larger the value, the higher the time interval of the previous unit. The higher the degree of aggregation of endophytes, The smaller the value, the higher the time interval of the previous unit. The smaller the effect of internal air exchange on environmental regulation, the larger the corresponding air volume regulation coefficient, meaning that the air volume needs to be increased more in the current unit of time period.

[0127] For example, the processing unit 33 can obtain the current basic air volume of the air exchange mechanism 20 (which can be preset to an initial value based on the size of the enclosure or determined based on historical operating data), and adjust the air volume of the air exchange mechanism 20 based on the current basic air volume and the air volume adjustment coefficient. For example, the air volume adjustment coefficient can be normalized to a certain range based on the minimum and maximum values ​​detected from historical data, such as [0.5, 2.0]. Thus, the normalized minimum value of 0.5 indicates that the air volume can be reduced by a maximum of 50%, avoiding insufficient ventilation due to insufficient air volume, and the maximum value of 2.0 indicates that the air volume can be increased by a maximum of 100%, avoiding energy waste and animal stress due to excessive air volume. This normalization method ensures that the air volume adjustment is both effective and reasonable, avoiding unreasonable adjustment effects that may result from directly using the air volume adjustment coefficient.

[0128] The above embodiments of this application realize dynamic intelligent adjustment of the air volume of the air exchange mechanism 20. The processing unit 33 can increase the air volume in a targeted manner according to the actual situation in the enclosure, effectively solving the problem of gas deposition in high-density enclosures.

[0129] It should be noted that the order of the above embodiments of the present invention is merely for descriptive purposes and does not represent the superiority or inferiority of the embodiments. The processes depicted in the accompanying drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0130] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

Claims

1. An air conditioning device for high-density penned animal husbandry, characterized in that, include: An upflow mechanism is used to create air convection by regulating the floor temperature of the enclosure. An air exchange system is used to introduce air from outside the enclosure and to extract air from inside the enclosure. An intelligent control mechanism, connected to the airflow mechanism and the air exchange mechanism, is used to monitor environmental parameters and animal distribution data in the enclosure, determine the ventilation rate loss coefficient and effective regulation rate based on the environmental parameters and the animal distribution data, and adjust the operating parameters of the air exchange mechanism based on the ventilation rate loss coefficient and the effective regulation rate. The intelligent control mechanism includes a sensor subsystem, a visual monitoring subsystem, and a processing unit; The sensor subsystem is used to monitor environmental parameters inside the enclosure in real time; the environmental parameters include air intake per unit time, harmful gas concentration data, temperature data, and humidity data; The visual monitoring subsystem is used to collect real-time image data of the enclosure through cameras in order to obtain animal distribution data. The processing unit is used to calculate animal density distribution characteristic values ​​based on the animal distribution data; determine the ventilation rate based on the air intake per unit time and the pen volume; determine the rate of change of harmful gas concentration based on the harmful gas concentration data; determine the ineffective exchange factor based on the ventilation rate and the rate of change of harmful gas concentration; determine the ventilation rate loss coefficient based on the correlation between the animal density distribution characteristic values ​​and the ineffective exchange factor; generate temperature change curves and humidity change curves based on the temperature data and the humidity data, respectively; determine the effective regulation rate based on the trend smoothness of the temperature change curves and the humidity change curves; and adjust the operating parameters of the air exchange mechanism based on the ventilation rate loss coefficient and the effective regulation rate. The animal density distribution characteristic value is used to characterize the degree of aggregation of animal distribution, the ineffective exchange factor is used to characterize the ineffectiveness of the air exchange process in the enclosure in the removal of harmful gases, the trend smoothness is evaluated by the curve slope change characteristics, the ventilation rate loss coefficient is used to characterize the degree of influence of animal density distribution on air exchange efficiency, and the effective regulation rate is used to characterize the degree of conformity of air exchange to the expected regulation of the enclosure environment.

2. The air conditioning device for high-density penned animal husbandry according to claim 1, characterized in that, The flow-up mechanism includes hot water pipes and cold water pipes pre-embedded in the floor of the enclosure; The hot water pipe and cold water pipe are used to create a temperature difference on the ground of the enclosure, so that the air at the location of the hot water pipe rises and the air at the location of the cold water pipe sinks.

3. The air conditioning device for high-density penned animal husbandry according to claim 1, characterized in that, The air exchange mechanism includes an air intake device and an exhaust device; the air intake device includes an external vent, an air intake pipe, and an air inlet; the exhaust device includes an exhaust vent. The external ventilation opening is used to connect to an external air source for the enclosure; The air intake pipe is used to connect the external vent and the air intake. The air inlet is used to introduce air from outside the enclosure into the enclosure in a preset airflow direction; The exhaust vent is used to extract air from the enclosure.

4. The air conditioning device for high-density penned animal husbandry according to claim 3, characterized in that, The air intake device also includes a diverter valve, a humidifier, a humidification channel, and an airflow guide plate; The diversion valve is connected to the external vent, the air intake pipe and the humidifier respectively, and is used to control the direction of air diversion; The humidifier is used to regulate air humidity; The humidification channel is used to connect the humidifier and the airflow guide plate; The airflow guide plate is used to introduce air from the humidification channel into the enclosure from multiple directions.

5. The air conditioning device for high-density penned animal husbandry according to claim 3, characterized in that, The exhaust device also includes an exhaust pipe and a gas processing device; The exhaust pipe is used to connect the air intake and the gas treatment device; The gas processing device is used to filter and purify the extracted air.

6. The air conditioning device for high-density penned animal husbandry according to claim 1, characterized in that, The processing unit is specifically used for: Based on the animal distribution data, the ventilation rate loss coefficient, and the effective regulation rate, the air volume regulation coefficient of the air exchange mechanism is determined; The air volume of the air exchange mechanism is adjusted according to the air volume adjustment coefficient.

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