Ventilation adjusting method based on farm, electronic equipment and storage medium

Abstract

The invention provides a ventilation adjusting method based on a breeding farm, electronic equipment and a storage medium, and belongs to the technical field of breeding environment regulation and control. The method comprises the steps that the target temperature corresponding to a breeding target in a current breeding area is obtained, a current ventilation mode and the needed ventilation quantity corresponding to the current ventilation mode are determined according to the indoor temperature and the target temperature, and the starting proportion of a positive pressure fan or a negative pressure fan is adjusted according to the needed ventilation quantity; when the current ventilation state of the current feeding area is a negative pressure state, positive pressure ventilation parameters of a positive pressure fan and negative pressure ventilation parameters of a negative pressure fan in the current feeding area are obtained, the current positive air volume is calculated, and the starting proportion of the positive pressure fan and / or the negative pressure fan is adjusted according to the current positive air volume and the set positive air volume maintaining condition; the set positive air volume maintaining condition is met, the ventilation requirement and the temperature adjusting requirement in winter are met at the same time, the biological safety in the farm is improved, and the micro-positive pressure state of the farm is maintained.

Description

Technical Field

[0001] This application relates to the technical field of breeding environment regulation, and particularly relates to a ventilation adjustment method, an electronic device, and a storage medium based on a breeding farm. Background Art

[0002] In order to regulate the temperature in a breeding farm and provide a good living environment for breeding targets, fans are usually installed in the breeding farm to adjust the temperature. However, in the northern regions with more dust in winter, the breeding farm will take certain wind prevention measures in winter to achieve wind prevention and prevent germs from entering the breeding farm along with large-particle dust.

[0003] In the related art, due to the wind prevention measures in the breeding farm, the mode of the existing environmental control ventilation system is too single, which is not sufficient to meet the ventilation and temperature adjustment requirements in winter at the same time. Moreover, due to the inconvenient air circulation in the breeding farm, the biological safety of the breeding farm is easily affected, making it difficult to meet the different requirements for air quality, temperature, and ventilation. Summary of the Invention

[0004] The main purpose of the embodiments of this application is to propose a ventilation adjustment method, device, electronic device, and storage medium based on a breeding farm to simultaneously meet the ventilation and temperature adjustment requirements in winter, improve the biological safety in the breeding farm, and meet the different requirements for air quality, temperature, and ventilation.

[0005] To achieve the above object, on the one hand, the embodiments of this application propose a ventilation adjustment method based on a breeding farm, and the method includes:

[0006] Divide a breeding farm into multiple breeding areas, where positive pressure fans and negative pressure fans are provided in the breeding areas;

[0007] When a start instruction for the first air volume mode is received, obtain the set positive air volume maintenance condition corresponding to the first air volume mode and the indoor temperature of the current breeding area;

[0008] Obtain the target temperature corresponding to the breeding target in the current breeding area, determine the current ventilation mode and the required ventilation volume corresponding to the current ventilation mode according to the indoor temperature and the target temperature, and adjust the opening ratio of the positive pressure fan or the negative pressure fan according to the required ventilation volume;

[0009] When the current ventilation state of the current breeding area is a negative pressure state, obtain the positive pressure ventilation parameter of the positive pressure fan and the negative pressure ventilation parameter of the negative pressure fan in the current breeding area;

[0010] Calculate the current positive air volume according to the positive pressure ventilation parameters and the negative pressure ventilation parameters, and adjust the opening ratio of the positive pressure fan and / or the negative pressure fan according to the current positive air volume and the set positive air volume maintenance condition to meet the set positive air volume maintenance condition.

[0011] Further, determining the current ventilation mode and the required ventilation volume corresponding to the current ventilation mode according to the indoor temperature and the target temperature includes:

[0012] When the indoor temperature is less than the target temperature, determine whether the temperature difference between the indoor temperature and the target temperature is within the set temperature difference range;

[0013] When the temperature difference is not within the set temperature difference range, determine the current ventilation mode as the minimum ventilation mode, adjust the opening ratio of the negative pressure fan to the set minimum ratio according to the minimum ventilation mode, and determine the corresponding ventilation volume of the positive pressure fan to determine the required ventilation volume.

[0014] Further, determining the current ventilation mode and the required ventilation volume corresponding to the current ventilation mode according to the indoor temperature and the target temperature includes:

[0015] Determine whether the temperature difference between the indoor temperature and the target temperature is within the set temperature difference range;

[0016] If so, determine the current ventilation mode as the linear ventilation mode, determine the respiration volume of the breeding target according to the temperature difference, and determine the current ventilation demand according to the respiration volume and the linear ventilation mode;

[0017] Perform linear fitting on the air volume and air pressure relationship curve of the positive pressure fan according to the ventilation demand and the current positive pressure ventilation parameters, and determine the ventilation volume of the positive pressure fan to determine the required ventilation volume.

[0018] Further, determining the current ventilation mode and the required ventilation volume corresponding to the current ventilation mode according to the indoor temperature and the target temperature includes:

[0019] When the indoor temperature is greater than the target temperature and the temperature difference between the indoor temperature and the target temperature is not within the set temperature difference range, detect the opening angle of the air outlet of the positive pressure fan;

[0020] When the opening angle reaches the maximum opening angle, determine the current ventilation mode as the auxiliary ventilation mode, determine the respiration volume of the breeding target according to the temperature difference, and determine the current ventilation demand according to the respiration volume and the auxiliary ventilation mode;

[0021] According to the ventilation requirement and the current negative pressure ventilation parameters, perform linear fitting on the air volume and air pressure relationship curve of the negative pressure fan to determine the air volume of the negative pressure fan, so as to determine the required air volume.

[0022] Further, determining the current ventilation mode and the required air volume corresponding to the current ventilation mode according to the indoor temperature and the target temperature includes:

[0023] When the indoor temperature is greater than the target temperature and the temperature difference between the indoor temperature and the target temperature is not within the set temperature difference range, detect the opening angle of the air outlet of the positive pressure fan;

[0024] When the opening angle reaches the maximum opening angle and the negative pressure fan has been running for the set time, determine that the current ventilation mode is the maximum ventilation mode, and determine the maximum air volume of the negative pressure fan according to the maximum ventilation mode, so as to determine the required air volume.

[0025] Further, the positive pressure ventilation parameters include the total positive pressure air volume and the positive pressure opening ratio, and the negative pressure ventilation parameters include the total negative pressure air volume and the negative pressure opening ratio; calculating the current positive air volume according to the positive pressure ventilation parameters and the negative pressure ventilation parameters includes:

[0026] Multiply the total positive pressure air volume by the positive pressure opening ratio and subtract the product of the total negative pressure air volume and the negative pressure opening ratio to obtain the current positive air volume.

[0027] Further, when the set positive air volume maintenance condition is to maintain the air volume in the farm according to the set positive air volume, adjusting the opening ratios of the positive pressure fan and / or the negative pressure fan according to the current positive air volume and the set positive air volume maintenance condition includes:

[0028] Determine the positive pressure compensation ratio of the positive pressure fan and the negative pressure compensation ratio of the negative pressure fan according to the air volume difference between the current positive air volume and the set positive air volume; wherein, the set positive air volume is greater than zero;

[0029] Gradually adjust the opening ratios of the positive pressure fan and the negative pressure fan according to the set first adjustment step size, the positive pressure compensation ratio and the negative pressure compensation ratio.

[0030] Further, when the set positive air volume maintenance condition is to maintain the air volume in the farm according to the set positive air volume, adjusting the opening ratios of the positive pressure fan and / or the negative pressure fan according to the current positive air volume and the set positive air volume maintenance condition includes:

[0031] Determine the positive pressure compensation ratio of the positive pressure fan or the negative pressure compensation ratio of the negative pressure fan according to the air volume difference between the current positive air volume and the set positive air volume; wherein, the set positive air volume is greater than zero;

[0032] According to the set second adjustment step size, gradually adjust the opening ratio of the positive pressure fan according to the positive pressure compensation ratio, or gradually adjust the opening ratio of the negative pressure fan according to the negative pressure compensation ratio.

[0033] To achieve the above object, on the other hand, an embodiment of the present application provides an electronic device, which includes a memory and a processor. The memory stores a computer program, and when the processor executes the computer program, the above method is implemented.

[0034] To achieve the above object, on the other hand, an embodiment of the present application provides a computer-readable storage medium, which stores a computer program, and when the computer program is executed by a processor, the above method is implemented.

[0035] The embodiments of the present application at least include the following beneficial effects: The present application provides a ventilation adjustment method and device, an electronic device, and a storage medium based on a farm. This solution divides the breeding areas of the farm and breeds different breeding targets to achieve diversified breeding and intelligent management; since the breeding targets of each breeding area are different, the corresponding ventilation mode and the required ventilation volume are determined according to the temperature difference between the target temperature of the breeding target and the current indoor temperature, and the opening ratio of the positive pressure fan or the negative pressure fan in the current area is adjusted to meet the temperature adjustment requirements; based on the temperature adjustment requirements, according to the ventilation state of the current breeding area and the set positive air volume maintenance condition, when it is determined that the current breeding area is in a negative pressure state, that is, the farm may not meet the set positive air volume maintenance condition, the opening ratio of the fan and / or the negative pressure fan is adjusted again, so that the farm is in a state that meets the set positive air volume maintenance condition, and at the same time meets the temperature adjustment requirements and the ventilation and air exchange requirements. By setting the set positive air volume maintenance condition, the farm is in a slightly positive pressure state to prevent external sand and germs from entering the farm, thereby protecting the living environment of the breeding target and improving biosecurity. Description of the Drawings

[0036] Figure 1 is a flowchart of a ventilation adjustment method based on a farm provided by an embodiment of the present application;

[0037] Figure 2 is a line graph showing the opening ratio of positive and negative fans in ventilation adjustment provided by an embodiment of the present application;

[0038] Figure 3 is a schematic hardware structure diagram of an electronic device provided by an embodiment of the present application. Detailed implementation manners

[0039] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numerals in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the embodiments of the present application. They are merely examples of devices and methods consistent with some aspects of the embodiments of the present application detailed in the appended claims.

[0040] It can be understood that the terms "first", "second", etc. used in the present application may be used herein to describe various concepts, but unless otherwise specified, these concepts are not limited by these terms. These terms are only used to distinguish one concept from another. For example, without departing from the scope of the embodiments of the present application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the words "if", "when" as used herein may be interpreted as "when...", "while...", or "in response to determining".

[0041] The terms "at least one", "a plurality of", "each", "any one", etc. used in the present application, "at least one" includes one, two or more, "a plurality of" includes two or more, "each" refers to each of the corresponding plurality, and "any one" refers to any one of the plurality.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs. The terms used herein are only for the purpose of describing the embodiments of the present application and are not intended to limit the present application.

[0043] Figure 1 is an optional flowchart of the ventilation adjustment method based on a breeding farm provided by the embodiments of the present application, Figure 1 The method in may include but is not limited to S100 to S500.

[0044] S100, divide the breeding farm into a plurality of breeding areas, wherein positive pressure fans and negative pressure fans are provided in the breeding areas.

[0045] S200, when responding to the start instruction of the first air volume mode, obtain the set positive air volume maintenance condition corresponding to the first air volume mode and the indoor temperature of the current breeding area.

[0046] S300, detect the target temperature corresponding to the breeding target in the current breeding area, determine the current ventilation mode and the required ventilation volume corresponding to the current ventilation mode according to the indoor temperature and the target temperature, and adjust the opening ratio of the positive pressure fan or the negative pressure fan according to the required ventilation volume.

[0047] S400, when the current ventilation state of the current breeding area is in a negative pressure state, obtain the positive pressure ventilation parameters of the positive pressure fan and the negative pressure ventilation parameters of the negative pressure fan in the current breeding area.

[0048] S500, calculate the current positive air volume according to the positive pressure ventilation parameters and the negative pressure ventilation parameters, and adjust the opening ratio of the positive pressure fan and / or the negative pressure fan according to the current positive air volume and the set positive air volume maintenance condition to meet the set positive air volume maintenance condition.

[0049] S100 to S500 illustrated in the embodiments of the present application achieve diversified breeding and intelligent management by dividing the breeding areas of the farm and breeding different breeding targets; since the breeding targets of each breeding area are different, the corresponding ventilation mode and the corresponding required ventilation volume are determined through the temperature difference between the target temperature of the breeding target and the current indoor temperature, and the opening ratio of the positive pressure fan or the negative pressure fan in the current area is adjusted to meet the temperature adjustment requirements; based on the temperature adjustment requirements, through the ventilation state of the current breeding area and the set positive air volume maintenance condition, when it is determined that the current breeding area is in a negative pressure state, that is, the farm may not meet the set positive air volume maintenance condition, the opening ratio of the fan and / or the negative pressure fan is adjusted again, so that the farm is in a state that meets the set positive air volume maintenance condition, and at the same time meets the temperature adjustment requirements and the ventilation and air exchange requirements. By setting the set positive air volume maintenance condition, the farm is in a slightly positive pressure state to prevent external dust and germs from entering the interior of the farm, thereby protecting the living environment of the breeding target and improving biosecurity.

[0050] In S100 of some embodiments, the farm is divided into multiple breeding areas, and each breeding area can breed the corresponding breeding target to achieve diversified breeding. A positive pressure fan and a negative pressure fan are provided in each breeding area. The negative pressure fan is arranged downwind of the positive pressure fan, and the positive pressure fan and the negative pressure fan are oppositely arranged with respect to the breeding area. By setting corresponding fans for multiple breeding areas, intelligent management of the ventilation conditions in different breeding areas is realized.

[0051] Among them, at most two negative pressure fans are set in the breeding area, and at least one positive pressure fan is set.

[0052] In S200 of some embodiments, in response to the start instruction of the first air volume mode, it is determined that the first air volume mode is currently running. The first air volume mode uses the positive air volume parameter of the farm as the air volume index to maintain a slightly positive pressure state in the farm. The slightly positive pressure state can prevent external dust, bacteria, viruses and other harmful substances from entering the interior of the farm through gaps or vents, thereby protecting the living environment of the animals. It helps to discharge the turbid air in the farm and introduce fresh air, thereby improving the air quality inside the farm and reducing the probability of cross-infection between breeding targets in the breeding area, which is beneficial to the healthy growth of breeding targets.

[0053] Among them, the present solution also has a second air volume mode, which uses the total air volume parameter of the farm as the air volume index to monitor the ventilation state of the farm.

[0054] Exemplarily, when the positive pressure protection button is turned on, the start instruction of the first air volume mode is obtained. Through the start instruction of the first air volume mode, the positive air volume parameter of the farm is used as the air volume index to ensure that the farm is in a slightly positive pressure state. When the positive pressure protection button is turned off, the start instruction of the second air volume mode is obtained, the positive air volume parameter is converted into the total air volume parameter, and the total air volume parameter of the farm is used as the air volume index to monitor the air volume situation of the farm.

[0055] Through the start instruction, the maintenance condition set in the first air volume mode is obtained, that is, the set positive air volume maintenance condition. Through the subsequent adjustment of the fan, the positive air volume of the current farm is made to meet the set positive air volume maintenance condition.

[0056] In addition, the indoor temperature of the current breeding area is detected, and the temperature difference is initially adjusted to first meet the temperature adjustment requirements.

[0057] It should be noted that the first air volume mode is commonly used in the semi-annual mode and in winter throughout the year to maintain a slightly positive pressure state in the farm, so as to prevent germs from entering the farm along with large particles of dust when there is a lot of dust in winter, and to provide a healthier, more stable and efficient production environment for breeding targets. When using negative pressure tunnel ventilation in summer, the first air volume mode needs to be turned off and the second air volume mode is started, and the air volume index changes from the positive air volume to the total air volume.

[0058] In S300 of some embodiments, the breeding targets in the current breeding area are detected, and the corresponding target temperature is determined through the breeding targets. Since the breeding targets raised in each breeding area may be different, and the environmental temperatures suitable for the survival of the breeding targets may vary, by determining the corresponding target temperature, the opening ratio of the fans in the corresponding breeding area is adjusted to meet the needs of different breeding targets, realizing personalized environmental control and meeting different requirements for temperature and ventilation.

[0059] Among them, detecting the breeding target in the current breeding area can determine the breeding target through image detection and matching, and determine the target temperature through a preset breeding target-target temperature correspondence table. It can also generate a search command based on the breeding target to determine the target temperature, so as to realize network search to determine the target temperature. It can also determine the breeding target currently being raised through the pre-input breeding target. In this embodiment, the specific acquisition method of the target temperature is not limited.

[0060] In S200, by comparing the indoor temperature and the target temperature, the temperature difference between the two is obtained. Through the temperature difference, the ventilation mode that needs to operate in the current breeding area, that is, the current ventilation mode, is determined. Through the current ventilation mode, the required ventilation volume in the current breeding area is determined.

[0061] By adjusting the opening ratio of the positive pressure fan or the opening ratio of the negative pressure fan according to the required ventilation volume, the indoor temperature in the current breeding area is adjusted, so that the indoor temperature can reach the target temperature and meet the temperature adjustment requirements of the current breeding area.

[0062] In S400 of some embodiments, since the temperature adjustment requirement is met through S300, when it is determined to operate in the first air volume mode through S200, therefore, to meet the problem adjustment requirement, the set positive air volume maintenance condition also needs to be met to maintain the slightly positive pressure state of the farm in winter.

[0063] Detect the current pressure difference in the current breeding area, compare the current pressure difference with the set pressure difference, and judge whether the current breeding area is in a negative pressure state.

[0064] If the current pressure difference is less than the set pressure difference, it is considered that the current breeding area is in a negative pressure state. Detect the positive pressure ventilation parameters of the positive pressure fan and the negative pressure ventilation parameters of the negative pressure fan corresponding to the current breeding area.

[0065] Among them, the positive pressure ventilation parameters include: the positive pressure opening ratio of the positive pressure fan and the total positive pressure air volume of the positive pressure fan; the negative pressure ventilation parameters include: the negative pressure opening ratio of the negative pressure fan and the total negative pressure air volume of the negative pressure fan. The set pressure difference can be adjusted through the environment of the farm and is not specifically limited in this application.

[0066] That is to say, the set positive air volume maintenance condition of the current breeding area is determined through the pressure difference. If the pressure difference in the current breeding area is less than the set pressure difference, the current breeding area is in a negative pressure state and does not meet the set positive air volume maintenance condition, and a pressure regulation operation strategy needs to be run.

[0067] In S500 of some embodiments, through the positive pressure ventilation parameters and negative pressure ventilation parameters obtained in S400, the current positive air volume of the current breeding area is calculated through the calculation formula corresponding to the first ventilation mode.

[0068] According to the set positive air volume maintenance condition, adjust the opening ratio of the positive pressure fan and / or the opening ratio of the negative pressure fan again, so as to adjust the current positive air volume, and make the breeding farm meet the set positive air volume maintenance condition, and at the same time meet the temperature adjustment demand and the ventilation and air exchange demand, so that the breeding farm is in a slightly positive pressure state.

[0069] In some embodiments of the present invention, S300 may include but is not limited to including S310 to S311:

[0070] S310, when the indoor temperature is less than the target temperature, judge whether the temperature difference between the indoor temperature and the target temperature is within the set temperature difference range.

[0071] S311, when the temperature difference is not within the set temperature difference range, determine the current ventilation mode as the minimum ventilation mode, according to the minimum ventilation mode, adjust the opening ratio of the negative pressure fan to the set lowest ratio, and determine the corresponding ventilation volume of the positive pressure fan to determine the required ventilation volume.

[0072] In S310 of an embodiment, compare the indoor temperature and the target temperature. When the indoor temperature is less than the target temperature, judge whether the temperature difference between the two is within the set temperature difference range.

[0073] Among them, the set temperature difference range can take a value of (-5°C, +5°C], or can take other values according to actual needs. In this embodiment, no limit is made to the set temperature difference range.

[0074] In S311 of an embodiment, when the temperature difference between the two is not within the set temperature difference range and is less than the target temperature, confirm that the running ventilation mode is the minimum ventilation mode.

[0075] In the minimum ventilation mode, adjust the opening ratio of the negative pressure fan to the set lowest ratio, determine the corresponding ventilation volume required for the positive pressure fan to operate in the minimum ventilation mode, use the corresponding ventilation volume as the required ventilation volume, and thus adjust the opening ratio of the positive pressure fan through the required ventilation volume.

[0076] Exemplarily, referring to Figure 2 , when the current indoor temperature is 15°C and the target temperature is 20°C, in the minimum ventilation mode, adjust the opening ratio of the negative pressure fan to 0%, and in the minimum ventilation mode, determine the corresponding ventilation volume required for the positive pressure fan to operate, and adjust the opening ratio of the positive pressure fan to 30% through the corresponding ventilation volume.

[0077] In the above solution, since the current indoor temperature is less than the target temperature, there is no need to cool down significantly. Currently, it is necessary to maintain the temperature. First, turn off the negative pressure fan and lower the opening ratio of the positive pressure fan to achieve energy saving and heat preservation.

[0078] In some embodiments of the present invention, S300 may include but is not limited to S320 to S322:

[0079] S320, determine whether the temperature difference between the indoor temperature and the target temperature is within the set temperature difference range.

[0080] S321, if so, determine the current ventilation mode as the linear ventilation mode, determine the respiration volume of the breeding target according to the temperature difference, and determine the current ventilation demand according to the respiration volume and the linear ventilation mode.

[0081] S322, perform linear fitting on the relationship curve between the air volume and the air pressure of the positive pressure fan according to the ventilation demand and the current positive pressure ventilation parameters, determine the ventilation volume of the positive pressure fan, so as to determine the required ventilation volume.

[0082] In S320 of an embodiment, determine whether the temperature difference between the current indoor temperature and the target temperature is within the set temperature difference range.

[0083] In S321 of an embodiment, when the temperature difference is within the set temperature difference range, confirm that the running ventilation mode is the linear ventilation mode, and the opening ratio of the fan will automatically change linearly.

[0084] Determine the respiration volume of the breeding target in the current breeding area through the temperature difference.

[0085] Among them, the respiration volume can be determined by querying the corresponding relationship table between the temperature difference and the average respiration volume per animal head. It can also be measured by a respiration measuring instrument to measure the respiration volume.

[0086] Determine the current ventilation demand of the current breeding area through the respiration volume and the linear ventilation mode.

[0087] Among them, the ventilation demand can be the respiration volume required by the current breeding target and the type of fan that needs to run.

[0088] In this embodiment, in the linear ventilation mode, when it is determined that the type of fan that needs to run is a positive pressure fan, obtain the current positive pressure ventilation parameters.

[0089] In S322 of an embodiment, through the positive pressure opening ratio and ventilation demand in the current positive pressure ventilation parameters, perform linear fitting on the relationship curve between the air volume and the air pressure of the positive pressure fan, determine the ventilation volume of the positive pressure fan, and use this ventilation volume as the required ventilation volume.

[0090] That is to say, through the actual positive pressure opening ratio, the current ventilation demand and the PQ curve (air volume - air pressure curve), determine the air volume of the positive pressure fan, ensure accurate positive air volume calculation, prevent the room from entering a negative pressure state, and generate biosafety risks.

[0091] With the above solution, if the temperature difference between the current indoor temperature and the target temperature is within the set temperature difference range, there is no need for a large-scale temperature reduction. Currently, the temperature needs to be maintained, and the negative pressure fan remains closed. The opening ratio of the positive pressure fan is linearly changed, which is convenient for control and prediction. Because in actual operation, a linear relationship is easier to achieve precise adjustment of the air volume through the control system to meet the temperature adjustment requirements in winter.

[0092] In some embodiments of the present invention, S300 may include but is not limited to S330 to S332:

[0093] S330, when the indoor temperature is greater than the target temperature and the temperature difference between the indoor temperature and the target temperature is not within the set temperature difference range, then detect the opening angle of the air outlet of the positive pressure fan.

[0094] S331, when the opening angle reaches the maximum opening angle, determine the current ventilation mode as the auxiliary ventilation mode. According to the temperature difference, determine the respiration volume of the breeding target. According to the respiration volume and the auxiliary ventilation mode, determine the current ventilation demand.

[0095] S332, according to the ventilation demand and the current negative pressure ventilation parameters, perform a linear fitting on the relationship curve between the air volume and the air pressure of the negative pressure fan to determine the air volume of the negative pressure fan so as to determine the required air volume.

[0096] In S330 of an embodiment, compare the indoor temperature and the target temperature. When the indoor temperature is greater than the target temperature, judge whether the temperature difference between the two is within the set temperature difference range.

[0097] If so, run the linear ventilation mode, that is, run the process steps of S320 to S322.

[0098] If not, detect the opening angle of the air outlet of the current positive pressure fan to judge the opening state of the positive pressure fan.

[0099] In S331 of an embodiment, when the indoor temperature is greater than the target temperature, the temperature difference between the two is not within the set temperature difference range, and the opening angle reaches the maximum opening angle, then the positive pressure fan has reached the maximum opening ratio, the air volume has been adjusted to the maximum, and it is necessary to start the negative pressure fan for auxiliary exhaust. Confirm that the running ventilation mode is the auxiliary ventilation mode.

[0100] In the auxiliary ventilation mode, determine the respiration volume of the breeding target through the temperature difference between the indoor temperature and the target temperature.

[0101] Among them, the respiration volume can be determined by querying the corresponding relationship table between the temperature difference and the average respiration volume per animal head. It can also be measured by a respiration measuring instrument to measure the respiration volume.

[0102] Through the respiration volume and the auxiliary ventilation mode, determine the current ventilation demand of the current breeding area.

[0103] Among them, the ventilation requirement can be the respiration volume required for the current breeding target and the type of fan that needs to operate.

[0104] In this embodiment, in the auxiliary ventilation mode, if it is determined that the types of fans that need to operate include negative pressure fans and positive pressure fans, then the current positive pressure ventilation parameters and the current negative pressure ventilation parameters are obtained.

[0105] In S332 of an embodiment, according to the negative pressure opening ratio in the current negative pressure ventilation parameters and the ventilation requirement, and performing linear fitting on the air volume - air pressure relationship curve of the negative pressure fan, the ventilation volume of the negative pressure fan is determined, and this ventilation volume is used as the required ventilation volume.

[0106] That is to say, the air volume of the negative pressure fan is determined through the actual negative pressure opening ratio, the current ventilation requirement, and the PQ curve (air volume - air pressure curve).

[0107] Through the above solution, if the temperature difference between the current indoor temperature and the target temperature is not within the set temperature difference range, and the indoor temperature is too high, and the opening ratio of the positive pressure fan has reached the maximum, then the negative pressure fan is operated for linear control to assist in exhausting air to meet the temperature adjustment requirements in winter.

[0108] In some embodiments of the present invention, S300 may include but is not limited to including S340 to S341:

[0109] S340, when the indoor temperature is greater than the target temperature, and the temperature difference between the indoor temperature and the target temperature is not within the set temperature difference range, then the opening angle of the air outlet of the positive pressure fan is detected.

[0110] S341, when the opening angle reaches the maximum opening angle, and the negative pressure fan has been running for the set time, then it is determined that the current ventilation mode is the maximum ventilation mode, and according to the maximum ventilation mode, the maximum ventilation volume of the negative pressure fan is determined to determine the required ventilation volume.

[0111] In S340 of an embodiment, the indoor temperature and the target temperature are compared. When the indoor temperature is greater than the target temperature, it is judged whether the temperature difference between them is within the set temperature difference range.

[0112] If so, the linear ventilation mode is operated, that is, the process steps of S320 to S322 are run.

[0113] If not, then the opening angle of the air outlet of the current positive pressure fan is detected to judge the opening state of the positive pressure fan.

[0114] In S340 of an embodiment, when the opening angle of the air outlet of the positive pressure fan reaches the maximum opening angle, then the positive pressure fan has reached the maximum opening ratio, the air volume has been adjusted to the maximum, and it is detected whether the opening time of the negative pressure fan has reached the set time.

[0115] If not, the opening ratio of the negative pressure fan remains the set minimum ratio, and the process steps from S330 to S332 are executed to run the auxiliary ventilation mode.

[0116] When the opening time of the negative pressure fan reaches the set time, it is confirmed that the running ventilation mode is the maximum ventilation mode.

[0117] Among them, the set time can be 2 minutes, 5 minutes, or 10 minutes, and there is no specific limitation in this application. By setting the set time, it is determined whether the negative pressure fan has been turned on, so as to distinguish between the auxiliary ventilation mode and the maximum ventilation mode.

[0118] In the maximum ventilation mode, determine the maximum ventilation volume required for the negative pressure fan to operate in the maximum ventilation mode, and use the maximum ventilation volume as the required ventilation volume, so as to adjust the opening ratio of the positive pressure fan through the required ventilation volume.

[0119] Exemplarily, referring to Figure 2 , when the current indoor temperature is 29°C and the target temperature is 20°C, in the maximum ventilation mode, maintain the 100% opening ratio of the positive pressure fan. In the maximum ventilation mode, determine the maximum ventilation volume required for the negative pressure fan to operate, and adjust the opening ratio of the positive pressure fan to 80% through the maximum ventilation volume.

[0120] In some embodiments of the present invention, the positive pressure ventilation parameters include: the total positive pressure air volume and the positive pressure opening ratio, and the negative pressure ventilation parameters include: the total negative pressure air volume and the negative pressure opening ratio. S500 may include but is not limited to S510 to S521:

[0121] S510, subtract the product of the total negative pressure air volume and the negative pressure opening ratio from the product of the total positive pressure air volume and the positive pressure opening ratio to obtain the current positive air volume.

[0122] S520, determine the positive pressure compensation ratio of the positive pressure fan and the negative pressure compensation ratio of the negative pressure fan according to the air volume difference between the current positive air volume and the set positive air volume; where the set positive air volume is greater than zero.

[0123] S521, gradually adjust the opening ratio of the positive pressure fan and the opening ratio of the negative pressure fan according to the set first adjustment step size, the positive pressure compensation ratio, and the negative pressure compensation ratio.

[0124] In an embodiment of S510, in the first air volume mode, through the total positive pressure air volume P1, the positive pressure opening ratio R1, the total negative pressure air volume P2, and the negative pressure opening ratio R2, use the positive air volume calculation formula: P1×R1 - P2×R2 to calculate the current positive air volume.

[0125] That is to say, the current positive air volume is calculated as follows: the product of the total positive air volume P1 and the positive pressure opening ratio R1 minus the product of the total negative air volume P2 and the negative pressure opening ratio R2.

[0126] Among them, in the second air volume mode, the calculation formula for the current total air volume is: P1×R1 + P2×R2, and then the current positive air volume is calculated.

[0127] In an embodiment S520, when the set positive air volume maintenance condition is to maintain the air volume in the farm according to the set positive air volume, the air volume difference between the calculated current positive air volume and the set positive air volume is obtained.

[0128] Among them, the set positive air volume is greater than zero.

[0129] When the simultaneous compensation strategy of the positive pressure fan and the negative pressure fan is selected, the positive pressure compensation ratio of the positive pressure fan and the negative pressure compensation ratio of the negative pressure fan are determined through the air volume difference, so that the current positive air volume can meet the set positive air volume to maintain a slightly positive pressure state where the air volume in the farm is always greater than zero.

[0130] In an embodiment S521, since both the positive pressure fan and the negative pressure fan can be variable-speed fans, the opening ratio of the positive pressure fan is gradually adjusted through the set first adjustment step length and the positive pressure compensation ratio. At the same time, the opening ratio of the negative pressure fan is gradually adjusted through the set first adjustment step length and the negative pressure compensation ratio, so that the current air volume is always greater than zero, and the current pressure difference is not less than the set pressure difference, maintaining a slightly positive pressure state where the air volume in the farm is always greater than zero.

[0131] Among them, the set first adjustment step length can be adjusted according to actual needs and is not specifically limited in this embodiment.

[0132] Through the above solution, after temperature adjustment, the positive air volume in the farm may change, resulting in a negative pressure state in the farm, which does not meet the set positive air volume maintenance condition in the first ventilation mode. Therefore, it is determined whether the current breeding area is in a negative pressure state according to the pressure difference, and the opening ratios of the positive pressure fan and the negative pressure fan are adjusted again according to the pressure difference, so as to adjust the air volume and the pressure difference, so as to meet the ventilation and air change requirements in winter, realize simultaneously coping with the ventilation and air change requirements and temperature adjustment requirements in winter, and make the farm in a slightly positive pressure state where the air volume is always greater than zero by setting the set positive air volume maintenance condition. To prevent external dust and germs from entering the farm, improve the biological safety in the farm, and meet different requirements for air quality, temperature and ventilation.

[0133] In some embodiments of the present invention, S500 may include but is not limited to including S530 to S531:

[0134] S530. Determine the positive pressure compensation ratio of the positive pressure fan or the negative pressure compensation ratio of the negative pressure fan according to the air volume difference between the current positive air volume and the set positive air volume.

[0135] S531. According to the set second adjustment step size, gradually adjust the opening ratio of the positive pressure fan according to the positive pressure compensation ratio, or gradually adjust the opening ratio of the negative pressure fan according to the negative pressure compensation ratio.

[0136] In an embodiment S530, when the set positive air volume maintenance condition is to maintain the air volume in the farm according to the set positive air volume, the air volume difference between the currently calculated positive air volume and the set positive air volume is obtained.

[0137] Wherein, the set positive air volume is greater than zero.

[0138] When selecting the alternative compensation strategy of the positive pressure fan and the negative pressure fan, determine the positive pressure compensation ratio of the positive pressure fan or the negative pressure compensation ratio of the negative pressure fan through the air volume difference, so that the current positive air volume can meet the set positive air volume to maintain a slightly positive pressure state where the air volume in the farm is always greater than zero.

[0139] In an embodiment S531, since both the positive pressure fan and the negative pressure fan can be variable-speed fans, the opening ratio of the positive pressure fan is gradually adjusted through the set second adjustment step size and the positive pressure compensation ratio.

[0140] Or, gradually adjust the opening ratio of the negative pressure fan through the set second adjustment step size and the negative pressure compensation ratio, so that the current air volume is always greater than zero, then the current pressure difference is not less than the set pressure difference, and maintain a slightly positive pressure state where the air volume in the farm is always greater than zero.

[0141] Wherein, the set second adjustment step size can be adjusted according to actual needs and is not specifically limited in this embodiment. Different compensation strategies correspond to different types of fans to be adjusted, so different compensation instructions can be responded to, and the corresponding adjustment step size can be used to adjust the fans.

[0142] Through the above solution, after temperature adjustment, the positive air volume in the farm may change, resulting in a negative pressure state in the farm, which does not meet the set positive air volume maintenance condition in the first ventilation mode. Therefore, determine whether the current breeding area is in a negative pressure state according to the pressure difference, and according to the pressure difference, adjust the opening ratio of the positive pressure fan or the negative pressure fan again, so as to adjust the air volume and pressure, so as to meet the winter ventilation and air change requirements, and realize coping with the winter ventilation and air change requirements and temperature adjustment requirements at the same time. By setting the set positive air volume maintenance condition, make the farm in a slightly positive pressure state where the air volume is always greater than zero. To prevent external dust and germs from entering the farm, improve the bio-safety in the farm, and meet different requirements for air quality, temperature and ventilation.

[0143] An embodiment of the present application further provides an electronic device, which includes a memory and a processor. The memory stores a computer program, and when the processor executes the computer program, the above-mentioned ventilation adjustment method based on a farm is implemented. The electronic device can be any intelligent terminal including a tablet computer, a vehicle-mounted computer, etc.

[0144] It can be understood that the content in the above method embodiments is applicable to the device embodiments of the present application. The functions specifically implemented by the device embodiments of the present application are the same as those of the above method embodiments, and the beneficial effects achieved are also the same as those of the above method embodiments.

[0145] Please refer to Figure 3 , Figure 3 which schematically shows the hardware structure of an electronic device in another embodiment. The electronic device includes:

[0146] A processor 301, which can be implemented in ways such as a general-purpose CPU (Central Processing Unit), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided by the embodiments of the present application;

[0147] A memory 302, which can be implemented in forms such as a read-only memory (ROM), a static storage device, a dynamic storage device, or a random access memory (RAM). The memory 302 can store an operating system and other application programs. When implementing the technical solutions provided by the embodiments of this specification through software or firmware, the relevant program codes are stored in the memory 302, and the processor 301 is used to call and execute the ventilation adjustment method based on a farm in the embodiments of the present application;

[0148] An input / output interface 303, which is used to implement information input and output;

[0149] A communication interface 304, which is used to implement communication and interaction between the device and other devices, and can implement communication through a wired method (such as USB, network cable, etc.) or through a wireless method (such as a mobile network, WIFI, Bluetooth, etc.);

[0150] A bus 305, which transmits information between various components of the device (such as the processor 301, the memory 302, the input / output interface 303, and the communication interface 304);

[0151] Among them, the processor 301, the memory 302, the input / output interface 303, and the communication interface 304 are communicatively connected to each other inside the device through the bus 305.

[0152] An embodiment of the present application also provides a computer-readable storage medium. The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the above-described ventilation adjustment method based on a breeding farm is implemented.

[0153] It can be understood that the content in the above method embodiments is applicable to the present storage medium embodiments. The functions specifically implemented by the present storage medium embodiments are the same as those of the above method embodiments, and the beneficial effects achieved are also the same as those of the above method embodiments.

[0154] As a non-transitory computer-readable storage medium, the memory can be used to store non-transitory software programs and non-transitory computer-executable programs. In addition, the memory can include high-speed random access memory, and can also include non-transitory memory, such as at least one magnetic disk storage device, a flash memory device, or other non-transitory solid-state storage devices. In some embodiments, the memory may optionally include a memory remotely disposed relative to the processor, and these remote memories can be connected to the processor through a network. Examples of the above network include but are not limited to the Internet, an enterprise intranet, a local area network, a mobile communication network, and combinations thereof.

[0155] The embodiments described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. Those skilled in the art will know that with the evolution of technology and the emergence of new application scenarios, the technical solutions provided by the embodiments of the present application are equally applicable to similar technical problems.

[0156] Those skilled in the art can understand that the technical solutions shown in the figures do not constitute a limitation on the embodiments of the present application, and may include more or fewer steps than those shown in the figures, or combine certain steps, or different steps.

[0157] Those of ordinary skill in the art can understand that all or some of the steps in the methods disclosed above, and the functional modules / units in the devices, can be implemented as software, firmware, hardware, and appropriate combinations thereof.

[0158] The terms "including" and "having" in the specification of the present application and any variations thereof in the above-mentioned drawings are intended to cover non-exclusive inclusion. For example, a process, method, product, or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0159] It should be understood that in this application, "at least one (item)" means one or more, and "a plurality" means two or more. "And / or" is used to describe the association relationship of associated objects, indicating that there can be three relationships. For example, "A and / or B" can represent: only A exists, only B exists, and both A and B exist simultaneously. Among them, A and B can be singular or plural. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0160] In addition, in each embodiment of this application, each functional unit can be integrated in a processing unit, can exist separately as individual physical units, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

[0161] The preferred embodiments of the embodiments of this application have been described above with reference to the accompanying drawings, and thus do not limit the scope of the rights of the embodiments of this application. Any modifications, equivalent replacements, and improvements made by those skilled in the art without departing from the scope and essence of the embodiments of this application shall be within the scope of the rights of the embodiments of this application.

Claims

1. A ventilation adjustment method based on a farm, characterized in that, The method includes: Dividing a farm into multiple breeding areas, wherein a positive pressure fan and a negative pressure fan are provided in the breeding area; When responding to a start instruction of a first air volume mode, obtaining the set positive air volume maintenance condition corresponding to the first air volume mode and the current indoor temperature of the breeding area; Obtaining the target temperature corresponding to the breeding target in the current breeding area, determining the current ventilation mode and the required ventilation volume corresponding to the current ventilation mode according to the indoor temperature and the target temperature, and adjusting the opening ratio of the positive pressure fan or the negative pressure fan according to the required ventilation volume; When the current ventilation state of the current breeding area is a negative pressure state, obtaining the positive pressure ventilation parameter of the positive pressure fan and the negative pressure ventilation parameter of the negative pressure fan in the current breeding area; Calculating the current positive air volume according to the positive pressure ventilation parameter and the negative pressure ventilation parameter, and adjusting the opening ratio of the positive pressure fan and / or the negative pressure fan according to the current positive air volume and the set positive air volume maintenance condition to meet the set positive air volume maintenance condition.

2. The method according to claim 1, wherein The determining the current ventilation mode and the required ventilation volume corresponding to the current ventilation mode according to the indoor temperature and the target temperature includes: When the indoor temperature is less than the target temperature, determining whether the temperature difference between the indoor temperature and the target temperature is within the set temperature difference range; When the temperature difference is not within the set temperature difference range, determining the current ventilation mode as the minimum ventilation mode, adjusting the opening ratio of the negative pressure fan to the set minimum ratio according to the minimum ventilation mode, and determining the corresponding ventilation volume of the positive pressure fan to determine the required ventilation volume.

3. The method according to claim 1, wherein The determining the current ventilation mode and the required ventilation volume corresponding to the current ventilation mode according to the indoor temperature and the target temperature includes: Determining whether the temperature difference between the indoor temperature and the target temperature is within the set temperature difference range; If so, determining the current ventilation mode as a linear ventilation mode, determining the breathing volume of the breeding target according to the temperature difference, and determining the current ventilation demand according to the breathing volume and the linear ventilation mode; Performing linear fitting on the air volume and air pressure relationship curve of the positive pressure fan according to the ventilation demand and the current positive pressure ventilation parameter to determine the ventilation volume of the positive pressure fan to determine the required ventilation volume.

4. The method according to claim 1, wherein The determining the current ventilation mode and the required ventilation volume corresponding to the current ventilation mode according to the indoor temperature and the target temperature includes: When the indoor temperature is greater than the target temperature and the temperature difference between the indoor temperature and the target temperature is not within the set temperature difference range, detecting the opening angle of the air outlet of the positive pressure fan; When the opening angle reaches the maximum opening angle, determining the current ventilation mode as an auxiliary ventilation mode, determining the breathing volume of the breeding target according to the temperature difference, and determining the current ventilation demand according to the breathing volume and the auxiliary ventilation mode; According to the ventilation requirement and the current negative pressure ventilation parameters, perform linear fitting on the relationship curve between the air volume and air pressure of the negative pressure fan to determine the ventilation volume of the negative pressure fan, so as to determine the required ventilation volume.

5. The method according to claim 1, wherein Determining the current ventilation mode and the required ventilation volume corresponding to the current ventilation mode according to the indoor temperature and the target temperature includes: When the indoor temperature is greater than the target temperature and the temperature difference between the indoor temperature and the target temperature is not within the set temperature difference range, detect the opening angle of the air outlet of the positive pressure fan; When the opening angle reaches the maximum opening angle and the negative pressure fan has been running for the set time, determine that the current ventilation mode is the maximum ventilation mode, and determine the maximum ventilation volume of the negative pressure fan according to the maximum ventilation mode, so as to determine the required ventilation volume.

6. The method according to claim 1, characterized in that, The positive pressure ventilation parameters include the total positive pressure air volume and the positive pressure opening ratio, and the negative pressure ventilation parameters include the total negative pressure air volume and the negative pressure opening ratio; calculating the current positive air volume according to the positive pressure ventilation parameters and the negative pressure ventilation parameters includes: Subtract the product of the total negative pressure air volume and the negative pressure opening ratio from the product of the total positive pressure air volume and the positive pressure opening ratio to obtain the current positive air volume.

7. The method according to claim 1, characterized in that When the set positive air volume maintenance condition is to maintain the air volume in the farm according to the set positive air volume, adjusting the opening ratio of the positive pressure fan and / or the negative pressure fan according to the current positive air volume and the set positive air volume maintenance condition includes: Determine the positive pressure compensation ratio of the positive pressure fan and the negative pressure compensation ratio of the negative pressure fan according to the air volume difference between the current positive air volume and the set positive air volume; wherein, the set positive air volume is greater than zero; Gradually adjust the opening ratio of the positive pressure fan and the opening ratio of the negative pressure fan according to the set first adjustment step, the positive pressure compensation ratio and the negative pressure compensation ratio.

8. The method according to claim 1, characterized in that When the set positive air volume maintenance condition is to maintain the air volume in the farm according to the set positive air volume, adjusting the opening ratio of the positive pressure fan and / or the negative pressure fan according to the current positive air volume and the set positive air volume maintenance condition includes: Determine the positive pressure compensation ratio of the positive pressure fan or the negative pressure compensation ratio of the negative pressure fan according to the air volume difference between the current positive air volume and the set positive air volume; wherein, the set positive air volume is greater than zero; Gradually adjust the opening ratio of the positive pressure fan according to the positive pressure compensation ratio or gradually adjust the opening ratio of the negative pressure fan according to the negative pressure compensation ratio according to the set second adjustment step.

9. An electronic device, characterized in that, The electronic device includes a memory and a processor, the memory stores a computer program, and when the processor executes the computer program, the method according to any one of claims 1 to 8 is implemented.

10. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, the method according to any one of claims 1 to 8 is implemented.

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