A ventilation control method and device for a pen fan.

Abstract

This invention discloses a ventilation control method and device for pen fans, relating to the field of ventilation technology for livestock pens. The ventilation control method for pen fans includes: obtaining multiple fan operation schemes based on fan type, fault information, operating time, opening degree, ventilation volume, and fan location information; obtaining a precise target ventilation volume for the pen based on the pen's environmental and aquaculture information; finally, obtaining the optimal fan operation scheme based on the target ventilation volume, the pen's ventilation objective function, and the pen's ventilation constraints; and comprehensively controlling the pen's fans according to the optimal fan operation scheme. The optimal fan operation scheme obtained by this invention combines fan information and pen information, ensuring that fan control is not based on a single piece of information, avoiding one-sided fan control, guaranteeing sufficient and uniform airflow within the pen, and reducing resource waste caused by one-sided fan control.

Description

Technical Field

[0001] This invention relates to the field of ventilation technology for livestock pens, and in particular to a ventilation control method and device for pen fans. Background Technology

[0002] With socio-economic development and accelerated urbanization, the demand for meat products is constantly increasing, which has greatly promoted the large-scale development of the livestock industry to meet the growing market demand. Among these factors, the environment of livestock farms and pens plays a crucial role in the large-scale development of the livestock industry.

[0003] Ventilation in livestock pens plays a crucial role in improving and maintaining the environment of these pens. For example, proper ventilation in summer helps maintain a suitable temperature and a dry environment during humid weather. However, current pen ventilation is not ideal. Technicians often adjust the ventilation fans based solely on weather conditions or neglect the growth characteristics of the animals, leading to inadequate ventilation. Furthermore, existing pen ventilation systems have significant limitations in automatic control, often relying on manual experience, which prevents intelligent fan control. Therefore, a new method or device is urgently needed to address these issues. Summary of the Invention

[0004] This invention provides a ventilation control method and device for pen fans, to solve the technical problem that existing technologies cannot fully control pen fans.

[0005] To address the aforementioned technical problems, embodiments of the present invention provide a ventilation control method for a barn fan, comprising:

[0006] Each fan is assigned a code based on its location information in the enclosure, thus obtaining the location arrangement information of each fan.

[0007] The operation information of each fan is obtained. Based on the fan type, operation information and position arrangement information of each fan, and combined with the preset fan start-up method, several fan operation schemes and the total air volume corresponding to the fan operation schemes are obtained. The operation information of each fan includes: each fan's fault information, running time, opening degree and ventilation volume.

[0008] The target ventilation volume for the enclosure is calculated based on environmental and aquaculture information.

[0009] Based on the preset ventilation objective function, preset ventilation constraints, and target ventilation volume of the pen, and combined with the operating information and position arrangement information of each fan, the several fan operation schemes are screened to obtain the optimal fan operation scheme.

[0010] The ventilation of the pen fans is regulated according to the optimal fan operation scheme.

[0011] Understandably, compared to existing technologies, this invention obtains multiple fan operation schemes by utilizing fan fault information, runtime, opening degree, ventilation volume, and fan location information. Based on the pen's environmental and aquaculture information, it obtains a precise target ventilation volume for the pen. Finally, based on the pen's target ventilation volume, ventilation objective function, and ventilation constraints, it obtains the optimal fan operation scheme and comprehensively regulates the pen's fans according to this optimal scheme. The optimal fan operation scheme obtained by this invention not only considers fan fault information, runtime, opening degree, ventilation volume, and fan location information, but also incorporates pen environmental and aquaculture information. This combination of fan and pen information ensures that fan regulation is not based on a single piece of information, avoiding one-sided fan control, guaranteeing sufficient and uniform airflow within the pen, and reducing resource waste caused by one-sided fan regulation.

[0012] As a preferred embodiment, the step of arranging and encoding each fan according to its position information in the enclosure to obtain the position arrangement information of each fan is as follows:

[0013] Obtain the location information of each fan in the enclosure, and divide each fan into a left duct fan and a right duct fan according to its location;

[0014] All wind turbines are arranged and coded in position to obtain the position arrangement information of each wind turbine.

[0015] By dividing, arranging, and coding the locations of the fans, the fans can be turned on accordingly, thereby maintaining the uniformity of ventilation volume in the pen and improving the ventilation effect of the pen.

[0016] As a preferred embodiment, the step of acquiring the operating information of each fan involves obtaining several fan operation schemes and the total air volume corresponding to each fan operation scheme based on the fan type, operating information, and location arrangement information of each fan, combined with a preset fan start-up method. The operating information of each fan includes: fault information, operating time, opening degree, and ventilation volume of each fan. Specifically:

[0017] Based on the fan type and location information of each fan, and combined with the preset arrangement and combination rules, the fans are turned on in sequence to obtain the corresponding fan operation plan. The total air volume corresponding to the fan operation plan is calculated based on the operation information of each fan until all fans have been turned on.

[0018] By arranging and combining rules to activate the fans, a variety of fan activation schemes can be obtained, resulting in a more comprehensive and optimal fan activation scheme that meets the actual ventilation needs of the pens.

[0019] As a preferred embodiment, the step of calculating the total air volume corresponding to the fan operation plan based on the operating information of each fan, until all fans have been turned on, specifically involves:

[0020] Obtain fault information for each fan. When the fault information of a fan is a preset abnormal fault state, set the opening degree of the corresponding fan to 0 and control the corresponding fan to remain in the closed state; otherwise, control the corresponding fan to enter the open state.

[0021] Based on the operating information of the already activated fans and their ventilation volume, calculate the total air volume for the corresponding fan operation plan:

[0022]

[0023] Among them, V sum x represents the total air volume of the fan operation plan. i y represents the opening degree of the i-th fan in the fan operation scheme. i This represents the maximum ventilation volume of the i-th fan in the fan operation scheme.

[0024] By calculating the total air volume of the fan operation plan, fan operation plans that do not meet the ventilation requirements of the pen can be screened out, ensuring that the fan control implemented according to the optimal fan operation plan can meet the target ventilation requirements of the pen.

[0025] As a preferred embodiment, the optimal fan operation scheme is obtained by screening several fan operation schemes based on the preset ventilation objective function, preset ventilation constraints, and target ventilation volume of the enclosure, combined with the operation information and position arrangement information of each fan. Specifically:

[0026] Obtain the preset ventilation constraints for the enclosure:

[0027]

[0028] Where, x i y represents the opening degree of the i-th fan in the fan operation scheme. i This represents the ventilation volume of the i-th fan in the fan operation plan, where tar is the target ventilation volume;

[0029] Based on the preset ventilation constraints of the enclosure, and combined with the total air volume corresponding to each fan operation scheme, all fan operation schemes are screened to obtain several fan operation schemes that meet the preset ventilation constraints of the enclosure.

[0030] A preset ventilation objective function for the pen is obtained, and the objective function is solved by combining several fan operation schemes that satisfy the preset ventilation constraints. The solution value of the ventilation objective function and the corresponding optimal fan operation scheme are then obtained. The preset ventilation objective function is:

[0031]

[0032] Where, x i y represents the opening degree of the i-th fan in the fan operation scheme. i This represents the ventilation volume of the i-th fan in the fan operation plan, where tar is the target ventilation volume, and t is the target ventilation volume. i denoted by , represents the running time of the i-th fan in the fan operation plan, n represents the total number of fans in the enclosure, m represents the total number of fans in the left duct of the enclosure, k1 represents the weight of ventilation volume, k2 represents the weight of running time, and k3 represents the weight of air volume uniformity.

[0033] By solving each fan operation scheme through preset constraints and objective functions, the most comprehensive fan operation scheme that meets the target ventilation volume is obtained, which makes the control of the fan comprehensive.

[0034] Accordingly, the present invention also provides a ventilation control device for a pen fan, comprising: a position arrangement module, a fan operation scheme calculation module, a target ventilation volume calculation module, an optimal scheme acquisition module, and a fan control module;

[0035] The position arrangement module is used to arrange and encode each fan according to the position information of each fan in the enclosure, so as to obtain the position arrangement information of each fan.

[0036] The fan operation scheme calculation module is used to obtain the operation information of each fan. Based on the fan type, operation information and position arrangement information of each fan, combined with the preset fan start method, several fan operation schemes and the total air volume corresponding to the fan operation schemes are obtained. The operation information of each fan includes: each fan's fault information, running time, opening degree and ventilation volume.

[0037] The target ventilation volume calculation module is used to calculate the target ventilation volume of the pen based on the environmental and aquaculture information of the pen.

[0038] The optimal solution acquisition module is used to filter the several fan operation schemes based on the preset pen ventilation objective function, preset pen ventilation constraints and the target ventilation volume of the pen, combined with the operation information and position arrangement information of each fan, to obtain the optimal fan operation scheme.

[0039] The fan control module is used to control the ventilation of the pen fans according to the optimal fan operation scheme.

[0040] As a preferred embodiment, the position arrangement module includes: a position arrangement unit;

[0041] The position arrangement unit is used to obtain the position information of each fan in the enclosure, and to divide each fan into a left duct fan and a right duct fan according to the position of each fan;

[0042] All wind turbines are arranged and coded in position to obtain the position arrangement information of each wind turbine.

[0043] As a preferred embodiment, the wind turbine operation scheme calculation module includes: a wind turbine operation scheme calculation unit;

[0044] The fan operation scheme calculation unit is used to turn on the fans sequentially and obtain the corresponding fan operation scheme based on the fan type and location arrangement information of each fan, combined with the preset arrangement and combination rules, and calculate the total air volume corresponding to the fan operation scheme based on the operation information of each fan, until all fans have been turned on.

[0045] As a preferred embodiment, the fan operation scheme calculation unit includes: a fan total air volume calculation unit;

[0046] The total air volume calculation unit is used to obtain the fault information of each fan. When the fault information of the fan is a preset abnormal fault state, the opening degree of the corresponding fan is set to 0 and the corresponding fan is controlled to remain in the closed state; otherwise, the corresponding fan is controlled to enter the open state.

[0047] Based on the operating information of the already activated fans and their ventilation volume, calculate the total air volume for the corresponding fan operation plan:

[0048]

[0049] Among them, V sum x represents the total air volume of the fan operation plan. i y represents the opening degree of the i-th fan in the fan operation scheme. i This represents the maximum ventilation volume of the i-th fan in the fan operation scheme.

[0050] As a preferred embodiment, the optimal solution acquisition module includes: an optimal solution acquisition unit;

[0051] The optimal solution acquisition unit is used to acquire preset ventilation constraints for the enclosure:

[0052]

[0053] Where, x i y represents the opening degree of the i-th fan in the fan operation scheme. i This represents the ventilation volume of the i-th fan in the fan operation plan, where tar is the target ventilation volume;

[0054] Based on the preset ventilation constraints of the enclosure, and combined with the total air volume corresponding to each fan operation scheme, all fan operation schemes are screened to obtain several fan operation schemes that meet the preset ventilation constraints of the enclosure.

[0055] A preset ventilation objective function for the pen is obtained, and the objective function is solved by combining several fan operation schemes that satisfy the preset ventilation constraints. The solution value of the ventilation objective function and the corresponding optimal fan operation scheme are then obtained. The preset ventilation objective function is:

[0056]

[0057] Where, x i y represents the opening degree of the i-th fan in the fan operation scheme. i This represents the ventilation volume of the i-th fan in the fan operation plan, where tar is the target ventilation volume, and t is the target ventilation volume. i denoted by , represents the running time of the i-th fan in the fan operation plan, n represents the total number of fans in the enclosure, m represents the total number of fans in the left duct of the enclosure, k1 represents the weight of ventilation volume, k2 represents the weight of running time, and k3 represents the weight of air volume uniformity. Attached Figure Description

[0058] Figure 1 : A schematic diagram illustrating the steps of a ventilation control method for a pen fan provided in an embodiment of the present invention;

[0059] Figure 2 This is a schematic diagram of the arrangement of the barn fan arrangement code provided in an embodiment of the present invention;

[0060] Figure 3 This is a schematic diagram illustrating the naming and numbering of a fence fan according to an embodiment of the present invention.

[0061] Figure 4 : A schematic diagram illustrating the steps of another ventilation control method for a pen fan provided in an embodiment of the present invention;

[0062] Figure 5: A schematic diagram of the ventilation control device for a pen fan provided in an embodiment of the present invention. Detailed Implementation

[0063] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0064] In the field of ventilation technology for livestock pens, technicians often choose to repeatedly turn on all the fans to regulate the temperature of the pens, or rely on manual experience to regulate the fans. These methods ignore various status information of the pens and fans, resulting in wasted resources, inadequate ventilation, and poor breeding results.

[0065] Example 1

[0066] Please refer to Figure 1 The diagram below illustrates the steps of a ventilation control method for a pen fan provided in an embodiment of the present invention, including steps S101-S105.

[0067] Step S101: Arrange and encode each fan according to the position information of each fan in the enclosure to obtain the position arrangement information of each fan.

[0068] In this embodiment, the step of arranging and encoding each fan according to its position information in the enclosure to obtain the position arrangement information of each fan is specifically as follows:

[0069] Obtain the location information of each fan in the enclosure, and divide each fan into a left duct fan and a right duct fan according to its location;

[0070] All wind turbines are arranged and coded in position to obtain the position arrangement information of each wind turbine.

[0071] In one alternative embodiment, please refer to Figure 2 This is a schematic diagram of the arrangement of the barn fan arrangement code provided in an embodiment of the present invention. Figure 3 This is a schematic diagram of the name and serial number setting of a fence fan provided in an embodiment of the present invention; wherein, each fan is divided into a left duct fan and a right duct fan according to the position of each fan. Each fan belonging to the left duct fan type is encoded and arranged starting from the number 1 until the number m to end the encoding arrangement of the left duct fan. Each fan belonging to the right duct fan type is encoded and arranged starting from the number m+1 until the number n to end the encoding arrangement of the right duct fan.

[0072] Step S102: Obtain the operating information of each fan. Based on the fan type, operating information and position arrangement information of each fan, and combined with the preset fan start-up method, obtain several fan operation schemes and the total air volume corresponding to the fan operation schemes. The operating information of each fan includes: fault information, running time, opening degree and ventilation volume of each fan.

[0073] In this embodiment, the step of acquiring the operating information of each fan, and based on the fan type, operating information, and location arrangement information of each fan, combined with a preset fan start-up method, yields several fan operation schemes and the total air volume corresponding to each fan operation scheme. The operating information of each fan includes: fault information, operating time, opening degree, and ventilation volume for each fan. Specifically:

[0074] Based on the fan type and location information of each fan, and combined with the preset arrangement and combination rules, the fans are turned on in sequence to obtain the corresponding fan operation plan. The total air volume corresponding to the fan operation plan is calculated based on the operation information of each fan until all fans have been turned on.

[0075] In this embodiment, the step of calculating the total air volume corresponding to the fan operation plan based on the operating information of each fan, until all fans have been turned on, specifically involves:

[0076] Obtain fault information for each fan. When the fault information of a fan is a preset abnormal fault state, set the opening degree of the corresponding fan to 0 and control the corresponding fan to remain in the closed state; otherwise, control the corresponding fan to enter the open state.

[0077] Based on the operating information of the already activated fans and their ventilation volume, calculate the total air volume for the corresponding fan operation plan:

[0078]

[0079] Among them, V sum x represents the total air volume of the fan operation plan. i y represents the opening degree of the i-th fan in the fan operation scheme. i This represents the maximum ventilation volume of the i-th fan in the fan operation scheme.

[0080] In one optional embodiment, a fan opening degree greater than 0% is considered as the fan being turned on. Different types of fans have different opening degree ranges. Fixed-frequency fans only have two opening degree states: 0% and 100%. EC fans and variable-frequency fans can vary the opening degree between 0% and 100%. When the fan opening degree is 0%, the fan's ventilation volume is 0.

[0081] Step S103: Calculate the target ventilation volume of the pen based on the environmental and breeding information of the pen.

[0082] In an optional embodiment, the step of calculating the target ventilation volume of the pen based on the environmental information and breeding information of the pen specifically involves:

[0083] Obtain environmental and breeding information of the pen. The environmental information of the pen includes: the controlled temperature difference of the pen, the current temperature of the pen, and the target temperature of the pen. The breeding information of the pen includes: the number of pigs in the pen, the average maximum air volume required per pig in the pen, and the average minimum air volume required per pig in the pen.

[0084] The target ventilation volume for the enclosure was calculated based on environmental and aquaculture information.

[0085]

[0086] Among them, V tar Let T be the target ventilation volume, ΔT be the control temperature difference of the enclosure, and T be the temperature difference of the enclosure. tar t is the target temperature of the pen, t is the current temperature of the pen, N is the number of pigs in the pen, and V is the number of pigs in the pen. max V is the average maximum air volume required per pig in the pen. min This represents the minimum average air volume required per pig in the pen.

[0087] Step S104: Based on the preset pen ventilation objective function, preset pen ventilation constraints, and target ventilation volume of the pen, and combined with the operation information and position arrangement information of each fan, the several fan operation schemes are screened to obtain the optimal fan operation scheme.

[0088] In this embodiment, the optimal fan operation scheme is obtained by filtering the several fan operation schemes based on the preset pen ventilation objective function, preset pen ventilation constraints, and target ventilation volume of the pen, combined with the operation information and position arrangement information of each fan. Specifically:

[0089] Obtain the preset ventilation constraints for the enclosure:

[0090]

[0091] Where, x i y represents the opening degree of the i-th fan in the fan operation scheme. i This represents the ventilation volume of the i-th fan in the fan operation plan, where tar is the target ventilation volume;

[0092] Based on the preset ventilation constraints of the enclosure, and combined with the total air volume corresponding to each fan operation scheme, all fan operation schemes are screened to obtain several fan operation schemes that meet the preset ventilation constraints of the enclosure.

[0093] A preset ventilation objective function for the pen is obtained, and the objective function is solved by combining several fan operation schemes that satisfy the preset ventilation constraints. The solution value of the ventilation objective function and the corresponding optimal fan operation scheme are then obtained. The preset ventilation objective function is:

[0094]

[0095] Where, x i y represents the opening degree of the i-th fan in the fan operation scheme. i This represents the ventilation volume of the i-th fan in the fan operation plan, where tar is the target ventilation volume, and t is the target ventilation volume. i denoted by , represents the running time of the i-th fan in the fan operation plan, n represents the total number of fans in the enclosure, m represents the total number of fans in the left duct of the enclosure, k1 represents the weight of ventilation volume, k2 represents the weight of running time, and k3 represents the weight of air volume uniformity.

[0096] It should be noted that by solving for the fan operating time, the lifespan of the fans can be balanced. This extends the lifespan of the fans while meeting the needs of livestock production, avoiding the increased failure rate caused by some fans running continuously while others are shut down. By solving for the uniformity of airflow in the pen, the ventilation ducts of the pen can be balanced, avoiding uneven ventilation, uneven temperature and humidity, and the presence of harmful gases in some areas, thus improving the health of livestock in livestock production. By finding the minimum solution of the objective function, the optimal solution of the objective function can be obtained, achieving precise control of pen ventilation. This reduces energy consumption and saves production costs while meeting the ventilation needs of livestock production.

[0097] In one optional embodiment, by judging the fault status of each fan, the faulty fan is accurately identified and its opening is set to 0%; based on the air volume uniformity, the fan with a uniform air volume distribution in the space is selected to operate, so as to make the ventilation in the pen uniform and realize the air duct balance of the pen ventilation; based on the fan running time, the fan with a shorter cumulative running time is selected to operate, so as to make the running time of each fan balanced and realize the life balance of the fans.

[0098] It should be noted that the fan ventilation volume in this embodiment refers to data related to the fan opening degree. The larger the fan opening degree, the larger the fan ventilation volume. The running time refers to the cumulative running time of each fan. The air volume uniformity is obtained by subtracting the total air volume of all fans in the left air duct from the total air volume of all fans in the right air duct. The smaller the difference between the total air volume of all fans in the left air duct and the total air volume of all fans in the right air duct, the higher the air volume uniformity.

[0099] Step S105: Adjust the ventilation of the pen fans according to the optimal fan operation scheme.

[0100] In one alternative embodiment, please refer to Figure 4 This is a schematic diagram of the steps of another ventilation control method for a pen shed fan provided in an embodiment of the present invention; wherein, firstly, the target ventilation volume of the pen is calculated, abnormal fans are removed based on the fan fault information, and non-abnormal fans are turned on according to the idea of ​​permutation and combination to obtain multiple fan turning schemes, and it is determined whether the obtained fan turning schemes have reached the preset optimal target; if not, the non-abnormal fans are turned on according to the idea of ​​permutation and combination until the preset optimal target is reached and the best fan operation scheme is output.

[0101] This embodiment derives multiple fan operation schemes by analyzing fan fault information, runtime, opening degree, ventilation volume, and fan location information. Based on the pen's environmental and aquaculture information, a precise target ventilation volume for the pen is determined. Finally, the optimal fan operation scheme is obtained based on the target ventilation volume, the pen's ventilation objective function, and ventilation constraints. The optimal fan operation scheme is then used to comprehensively regulate the pen's fans. The optimal fan operation scheme obtained by this invention not only considers fan fault information, runtime, opening degree, ventilation volume, and fan location information, but also incorporates pen environmental and aquaculture information. This combination of fan and pen information ensures that fan regulation is not based on a single piece of information, avoiding one-sided fan control, guaranteeing sufficient and uniform airflow within the pen, and reducing resource waste caused by one-sided fan regulation.

[0102] Example 2

[0103] Please refer to Figure 5 The diagram below shows a ventilation control device for a pen fan provided in an embodiment of the present invention, comprising: a position arrangement module 201, a fan operation scheme calculation module 202, a target ventilation volume calculation module 203, an optimal scheme acquisition module 204, and a fan control module 205.

[0104] The position arrangement module 201 is used to arrange and encode each fan according to the position information of each fan in the enclosure, so as to obtain the position arrangement information of each fan.

[0105] In this embodiment, the position arrangement module 201 includes: a position arrangement unit;

[0106] The position arrangement unit is used to obtain the position information of each fan in the enclosure, and to divide each fan into a left duct fan and a right duct fan according to the position of each fan;

[0107] All wind turbines are arranged and coded in position to obtain the position arrangement information of each wind turbine.

[0108] The fan operation scheme calculation module 202 is used to obtain the operation information of each fan. Based on the fan type, operation information and position arrangement information of each fan, and combined with the preset fan start-up method, it obtains several fan operation schemes and the total air volume corresponding to the fan operation schemes. The operation information of each fan includes: each fan's fault information, running time, opening degree and ventilation volume.

[0109] In this embodiment, the wind turbine operation scheme calculation module 202 includes: a wind turbine operation scheme calculation unit;

[0110] The fan operation scheme calculation unit is used to turn on the fans sequentially and obtain the corresponding fan operation scheme based on the fan type and location arrangement information of each fan, combined with the preset arrangement and combination rules, and calculate the total air volume corresponding to the fan operation scheme based on the operation information of each fan, until all fans have been turned on.

[0111] In this embodiment, the fan operation scheme calculation unit includes: a fan total air volume calculation unit;

[0112] The total air volume calculation unit is used to obtain the fault information of each fan. When the fault information of the fan is a preset abnormal fault state, the opening degree of the corresponding fan is set to 0 and the corresponding fan is controlled to remain in the closed state; otherwise, the corresponding fan is controlled to enter the open state.

[0113] Based on the operating information of the already activated fans and their ventilation volume, calculate the total air volume for the corresponding fan operation plan:

[0114]

[0115] Among them, V sum x represents the total air volume of the fan operation plan. i y represents the opening degree of the i-th fan in the fan operation scheme. i This represents the maximum ventilation volume of the i-th fan in the fan operation scheme.

[0116] The target ventilation volume calculation module 203 is used to calculate the target ventilation volume of the pen based on the environmental information and breeding information of the pen.

[0117] In this embodiment, the target ventilation volume calculation module 203 includes: a target ventilation volume calculation unit;

[0118] The target ventilation volume calculation unit is used to obtain environmental information and breeding information of the pen. The environmental information of the pen includes: the controlled temperature difference of the pen, the current temperature of the pen, and the target temperature of the pen. The breeding information of the pen includes: the number of pigs in the pen, the average maximum air volume required per pig in the pen, and the average minimum air volume required per pig in the pen.

[0119] The target ventilation volume for the enclosure was calculated based on environmental and aquaculture information.

[0120]

[0121] Among them, V tar Let T be the target ventilation volume, ΔT be the control temperature difference of the enclosure, and T be the temperature difference of the enclosure. tar t is the target temperature of the pen, t is the current temperature of the pen, N is the number of pigs in the pen, and V is the number of pigs in the pen. max V is the average maximum air volume required per pig in the pen. min This represents the minimum average air volume required per pig in the pen.

[0122] The optimal solution acquisition module 204 is used to filter the several fan operation schemes based on the preset pen ventilation objective function, preset pen ventilation constraints and the target ventilation volume of the pen, combined with the operation information and position arrangement information of each fan, to obtain the optimal fan operation scheme.

[0123] In this embodiment, the optimal solution acquisition module 204 includes: an optimal solution acquisition unit;

[0124] The optimal solution acquisition unit is used to acquire preset ventilation constraints for the enclosure:

[0125]

[0126] Where, x i y represents the opening degree of the i-th fan in the fan operation scheme. i This represents the ventilation volume of the i-th fan in the fan operation plan, where tar is the target ventilation volume;

[0127] Based on the preset ventilation constraints of the enclosure, and combined with the total air volume corresponding to each fan operation scheme, all fan operation schemes are screened to obtain several fan operation schemes that meet the preset ventilation constraints of the enclosure.

[0128] A preset ventilation objective function for the pen is obtained, and the objective function is solved by combining several fan operation schemes that satisfy the preset ventilation constraints. The solution value of the ventilation objective function and the corresponding optimal fan operation scheme are then obtained. The preset ventilation objective function is:

[0129]

[0130] Where, x i y represents the opening degree of the i-th fan in the fan operation scheme. i This represents the ventilation volume of the i-th fan in the fan operation plan, where tar is the target ventilation volume, and t is the target ventilation volume. i denoted by , represents the running time of the i-th fan in the fan operation plan, n represents the total number of fans in the enclosure, m represents the total number of fans in the left duct of the enclosure, k1 represents the weight of ventilation volume, k2 represents the weight of running time, and k3 represents the weight of air volume uniformity.

[0131] The fan control module 205 is used to control the ventilation of the pen fans according to the optimal fan operation scheme.

[0132] This embodiment obtains multiple fan operation schemes by analyzing fan fault information, runtime, opening degree, ventilation volume, and fan location information. Based on the pen's environmental and aquaculture information, a precise target ventilation volume for the pen is determined. Finally, the optimal fan operation scheme is derived based on the target ventilation volume, the pen's ventilation objective function, and ventilation constraints. The fans in the pen are then comprehensively controlled according to this optimal scheme. By combining fan and pen information, fan control is not based on a single piece of information, avoiding one-sided fan control, ensuring sufficient and uniform airflow within the pen, and reducing resource waste caused by one-sided fan control.

[0133] In summary, this invention provides multiple fan operation schemes based on fan fault information, runtime, opening degree, ventilation volume, and fan location information. A precise target ventilation volume for the pen is obtained based on the pen's environmental and aquaculture information. Finally, the optimal fan operation scheme is derived based on the pen's target ventilation volume, ventilation objective function, and ventilation constraints. The optimal fan operation scheme is then used to comprehensively regulate the pen's fans. This invention's optimal fan operation scheme considers not only fan fault information, runtime, opening degree, ventilation volume, and fan location information, but also pen environmental and aquaculture information. By combining fan and pen information, fan regulation is not based on a single piece of information, avoiding one-sided fan control, ensuring sufficient and uniform airflow within the pen, and reducing resource waste caused by one-sided fan regulation.

[0134] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. In particular, it should be noted that any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention for those skilled in the art.

Claims

1. A ventilation control method for a pen fan, characterized in that, The application comprises the following steps: Each fan is arranged and encoded according to the position information of each fan in the barn, and the position arrangement information of each fan is obtained; Obtain the running information of each fan, and obtain a plurality of fan running schemes and the total air volume corresponding to the fan running schemes according to the fan type, running information and position arrangement information of each fan, and in combination with a preset fan opening method, wherein the running information of each fan comprises fault information, running time, opening degree and ventilation volume of each fan; The target ventilation volume of the barn is calculated according to the environmental information and breeding information of the barn; The optimal fan running scheme is obtained by screening the plurality of fan running schemes according to the preset barn ventilation objective function, the preset barn ventilation constraint condition and the target ventilation volume of the barn, in combination with the running information and position arrangement information of each fan, and specifically: Obtain the preset barn ventilation constraint condition: ， wherein, represents the opening of the i-th fan in the fan operation scheme, represents the ventilation volume of the i-th fan in the fan operation scheme, is the target ventilation volume;​​ Screen all fan running schemes according to the preset barn ventilation constraint condition in combination with the total air volume corresponding to each fan running scheme, and obtain a plurality of fan running schemes that meet the preset barn ventilation constraint condition; Obtain the preset barn ventilation objective function, and solve the barn ventilation objective function in combination with the plurality of fan running schemes that meet the preset barn ventilation constraint condition, and obtain the solution value of the barn ventilation objective function and the optimal fan running scheme corresponding to the solution value, wherein the preset barn ventilation objective function is: ， wherein, denotes the opening of the i-th fan in the fan operation scheme, denotes the ventilation volume of the i-th fan in the fan operation scheme, is the target ventilation volume, denotes the running time of the i-th fan in the fan operation scheme, denotes the total number of the barn fans, denotes the total number of the left air duct fans of the barn, denotes the weight of the ventilation volume, denotes the weight of the running time, denotes the weight of the air volume uniformity;​​​ The ventilation of the barn fan is regulated and controlled according to the optimal fan running scheme.

2. A method of regulating ventilation of a barn fan as defined in claim 1, wherein, The position arrangement information of each fan is obtained by arranging and encoding each fan according to the position information of each fan in the barn, and specifically: Obtain the position information of each fan in the barn, and divide each fan into left air duct fans and right air duct fans according to the position of each fan; The position arrangement and encoding of all fans are obtained, and the position arrangement information of each fan is obtained.

3. A method of controlling ventilation of a barn fan as defined in claim 1, wherein, The running information of each fan is obtained, and a plurality of fan running schemes and the total air volume corresponding to the fan running schemes are obtained according to the fan type, running information and position arrangement information of each fan, in combination with a preset fan opening method, wherein the running information of each fan comprises fault information, running time, opening degree and ventilation volume of each fan, and specifically: According to the fan type and position arrangement information of each fan, in combination with a preset arrangement and combination rule, the fans are opened in sequence and the corresponding fan running scheme is obtained, and the total air volume corresponding to the fan running scheme is calculated according to the running information of each fan, until all the fans have been opened.

4. A method of controlling ventilation of a stall fan as claimed in claim 3, wherein, The total air volume corresponding to the fan running scheme is calculated according to the running information of each fan, and all the fans have been opened, and specifically: Obtain the fault information of each fan, and when the fault information of the fan is a preset abnormal fault state, the opening degree of the corresponding fan is set to 0, and the corresponding fan is controlled to remain in a closed state; otherwise, the corresponding fan is controlled to enter an open state; The total air volume of the corresponding fan running scheme is calculated according to the opening degree and ventilation volume of the running information of the opened fan: ， in, This indicates the total air volume of the fan operation plan. This indicates the first step in the wind turbine operation plan. The opening degree of each fan, This indicates the first step in the wind turbine operation plan. The maximum ventilation capacity of each fan.

5. A ventilation control device for a pen fan, characterized in that, The application comprises the following steps: The position arrangement module, the fan operation scheme calculation module, the target ventilation quantity calculation module, the optimal scheme acquisition module and the fan regulation module; The position arrangement module is configured to arrange and encode each fan according to position information of each fan in the shed to obtain position arrangement information of each fan. The fan operation scheme calculation module is configured to obtain operation information of each fan, obtain a plurality of fan operation schemes and total ventilation quantities corresponding to the fan operation schemes according to fan types, the operation information and the position arrangement information of each fan, and a preset fan opening method, wherein the operation information of each fan includes fault information, operation duration, opening degree and ventilation quantity of each fan. The target ventilation quantity calculation module is configured to calculate a target ventilation quantity of the shed according to environmental information and breeding information of the shed. The optimal scheme acquisition module is configured to screen the plurality of fan operation schemes according to a preset shed ventilation objective function, a preset shed ventilation constraint condition and the target ventilation quantity of the shed, and obtain an optimal fan operation scheme according to the operation information and the position arrangement information of each fan. The optimal scheme acquisition module includes an optimal scheme acquisition unit. ， wherein, denotes the opening of the i-th fan in the fan operation scheme, denotes the air volume of the i-th fan in the fan operation scheme, is the target air volume;​​ The optimal scheme acquisition unit is configured to obtain the preset shed ventilation constraint condition, screen all fan operation schemes according to total ventilation quantities corresponding to each fan operation scheme, and obtain a plurality of fan operation schemes satisfying the preset shed ventilation constraint condition. The optimal scheme acquisition unit is configured to obtain the preset shed ventilation objective function, and solve the shed ventilation objective function according to the plurality of fan operation schemes satisfying the preset shed ventilation constraint condition to obtain a solution value of the shed ventilation objective function and an optimal fan operation scheme corresponding to the solution value, wherein the preset shed ventilation objective function is: ， wherein, represents the opening of the i-th fan in the fan operation scheme, represents the ventilation volume of the i-th fan in the fan operation scheme, is the target ventilation volume, represents the running time of the i-th fan in the fan operation scheme, represents the total number of the barn fans, represents the total number of the left air duct fans of the barn, represents the weight of the ventilation volume, represents the weight of the running time, represents the weight of the air volume uniformity;​​​ The fan regulation module is configured to regulate ventilation of the shed fan according to the optimal fan operation scheme.

6. A ventilation control device for a slatted barn ventilator according to claim 5, characterized in that The position arrangement module includes a position arrangement unit. The position arrangement unit is configured to obtain position information of each fan in the shed, and divide each fan into a left air duct fan and a right air duct fan according to the position of each fan. The position arrangement unit is configured to arrange and encode all fans to obtain position arrangement information of each fan.

7. A ventilation control device for a slatted barn ventilator according to claim 5, characterized in that The fan operation scheme calculation module includes a fan operation scheme calculation unit. The fan operation scheme calculation unit is configured to sequentially open the fans according to fan types and position arrangement information of each fan, and obtain corresponding fan operation schemes according to a preset arrangement and combination rule, and calculate total ventilation quantities corresponding to the fan operation schemes according to operation information of each fan until all fans have been opened.

8. A ventilation control device for a slatted barn ventilator according to claim 7, characterized in that The fan operation scheme calculation unit includes a fan total ventilation quantity calculation unit. The fan total ventilation quantity calculation unit is configured to obtain fault information of each fan, set an opening degree of a corresponding fan to 0 and control the corresponding fan to remain in a closed state when the fault information of the fan is a preset abnormal fault state, and control the corresponding fan to enter an opened state in other cases. The fan total ventilation quantity calculation unit is configured to calculate total ventilation quantities of corresponding fan operation schemes according to opening degrees and ventilation quantities of operation information of the opened fans. ， in, This indicates the total air volume of the fan operation plan. This indicates the first step in the wind turbine operation plan. The opening degree of each fan, This indicates the first step in the wind turbine operation plan. The maximum ventilation capacity of each fan.

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