CN110778266B

CN110778266B - Intelligent regulation and control method and system for cowshed roller shutter

Info

Publication number: CN110778266B
Application number: CN201910974606.8A
Authority: CN
Inventors: 丁露雨; 李奇峰; 蒋瑞祥; 郑文刚; 张石锐; 余礼根; 马为红; 高荣华; 于沁杨; 肖伯祥
Original assignee: Beijing Research Center for Information Technology in Agriculture; Beijing Research Center of Intelligent Equipment for Agriculture
Current assignee: Beijing Research Center for Information Technology in Agriculture; Beijing Research Center of Intelligent Equipment for Agriculture
Priority date: 2019-10-14
Filing date: 2019-10-14
Publication date: 2020-09-08
Anticipated expiration: 2039-10-14
Also published as: CN110778266A

Abstract

The embodiment of the invention provides an intelligent regulation and control method and system for a cowshed roller shutter. The method comprises the following steps: acquiring a plurality of initialization variables; acquiring a plurality of environmental parameters and rainfall measurement values; controlling the running state of the cowshed roller shutter according to the rainfall measurement value; acquiring a comprehensive thermal environment index and an air pollution index in the cowshed based on a plurality of initialization variables; judging the opening regulation and control mode of the cowshed roller shutter based on the comprehensive thermal environment index; acquiring a cowshed ventilation quantity demand estimation key parameter, and estimating the key parameter based on the cowshed ventilation quantity demand to obtain the cowshed ventilation quantity demand; acquiring a cowshed roller shutter opening decision parameter based on the cowshed ventilation demand and a plurality of environmental parameters; and calculating the opening decision parameters of the cowshed roller shutter to obtain the opening rate of the roller shutter. According to the embodiment of the invention, the opening rate of the roller shutter is quantitatively regulated and controlled by combining the analysis processing of various parameters, so that the condition of over ventilation or insufficient ventilation is reduced, and the environmental comfort and the production efficiency of the cowshed are improved.

Description

Intelligent regulation and control method and system for cowshed roller shutter

Technical Field

The invention relates to the technical field of environment regulation, in particular to an intelligent regulation and control method and system for a cowshed roller shutter.

Background

In scale breeding, especially in the dairy cow breeding industry, the application of the roller shutter cowshed is common, and the opening area of the side wall is adjusted by the opening degree of the roller shutter so as to achieve the purposes of ventilation, heat preservation, rain prevention and the like and adjust the environment in the cowshed. According to the height of the short wall at the window opening, the cowshed roller shutter window can be divided into a full roller shutter and a half roller shutter.

The height of the full roller shutter window low wall is about 0.3 m and the height of the half roller shutter window low wall is about 1.2-1.5 m. The full roller shutter window can be divided into an upper roller shutter and a lower roller shutter to respectively control the opening of the upper half side window opening and the lower half side window opening, and the half roller shutter window only needs one roller shutter to control the opening of the window opening. According to the spool position, the roll-up window can be divided into three types of upper spools, lower spools and middle spools, and the spool position and the roll-up curtain contraction mode can be flexibly combined according to the purpose and the requirement of regulation and control. Taking a full-rolling-curtain window as an example, the upper and lower rolling curtains can be folded towards the middle simultaneously in a mode of adopting a middle scroll, the rolling curtains can be folded from top to bottom by adopting a lower scroll, and the upper and lower rolling curtains can be controlled to be folded from bottom to top respectively by adopting a method of adopting 2 upper scrolls.

At present, the cowshed environment regulation and control system has poor pertinence to regulation and control of a roller shutter opening, manual experience regulation and control are mostly adopted for the roller shutter opening of the cowshed, the blindness is high, and an effective automatic regulation and control method and an effective automatic regulation and control system are lacked. Most preferablyThe small ventilation volume is an important basis for ventilation adjustment of the livestock and poultry house, and the minimum ventilation volume is estimated by adopting a heat balance method, a mass balance method or an empirical parameter method at present. The mass balance method mainly comprises CO₂Balance method and water vapor balance, while empirical parameter method calculates ventilation requirement of livestock and fowl according to ventilation requirement required by single animal or unit weight, such as ventilation requirement of adult layer chicken in winter of 0.75m³H/kg. Cowhouses often calculate minimum ventilation requirements based on heat or mass balance. Research shows that due to the fact that the cowshed enclosure structure is insufficient in heat insulation performance, certain contradiction exists between the winter minimum ventilation quantity calculated by a water vapor balance method and the winter minimum ventilation quantity calculated by a heat balance method based on the designed temperature in the cowshed, the ventilation quantity demand based on a heat insulation target and the ventilation quantity demand based on a ventilation target are greatly different, and a balance point of the two needs to be found. Simultaneously, different with chicken coop and pig house, the cowshed is mostly the roller shutter house of natural draft, because the polytropy of natural draft house air inlet and gas vent, uncertainty and the complexity that the flow coefficient is confirmed, even know minimum air volume demand, also be difficult to accurately give and correspond required open area, guide the roller shutter regulation and control.

Therefore, in actual production, the cowshed mostly adopts single factors such as temperature or gas concentration as regulation and control basis, and the rolling shutter motor is linearly driven to run. For example, a recommended roller shutter opening degree change curve corresponding to different greenhouse or humidity conditions is drawn according to the simulation results under 140 different working conditions through a computational fluid dynamics numerical simulation method. The animal feels the body of the breeding environment as a comprehensive result of interaction of multiple factors such as temperature, humidity and relative wind speed, and the single factor is used as a regulation and control basis to difficultly and accurately regulate the opening degree of the roller shutter so as to guarantee the environment in the house. Especially, in winter, in order to ensure the temperature in the house to the maximum, the conditions of insufficient ventilation, overhigh humidity in the house and the like often occur.

Disclosure of Invention

The embodiment of the invention provides an intelligent regulation and control method and system for a cowshed roller shutter, which are used for solving the problems that the pertinence of regulation and control on a roller shutter opening is not strong, an effective automatic regulation and control mechanism is lacked and the like in the prior art.

In a first aspect, an embodiment of the present invention provides an intelligent regulation and control method for a cowshed roller shutter, including:

acquiring a plurality of variables of a cowshed, and initializing the variables to obtain a plurality of initialized variables;

acquiring a plurality of environmental parameters and rainfall measurement values;

controlling the running state of the cowshed roller shutter according to the rainfall measurement value;

acquiring a comprehensive thermal environment index and an air pollution index in the cowshed based on the plurality of initialization variables;

judging the opening regulation and control mode of the cowshed roller shutter based on the comprehensive thermal environment index;

acquiring a cowshed ventilation quantity demand estimation key parameter, and estimating the key parameter based on the cowshed ventilation quantity demand to obtain the cowshed ventilation quantity demand;

acquiring a cowshed roller shutter opening decision parameter based on the cowshed ventilation demand and the plurality of environmental parameters;

and calculating the shedding decision parameters of the cowshed roller shutters to obtain the shedding rate of the roller shutters.

Preferably, the method further comprises:

based on the opening rate of the roller shutter, obtaining the plurality of environmental parameters again, and recalculating the comprehensive thermal environment index and the air pollution index based on the plurality of environmental parameters;

and carrying out decision correction on the operation state and the opening regulation and control mode based on the comprehensive thermal environment index and the air pollution index.

Preferably, the method comprises the steps of acquiring a plurality of variables of the cowshed, initializing the variables to obtain a plurality of initialized variables, and then acquiring the number of rotation turns of a scroll of the cowshed roller shutter.

Preferably, the controlling the running state of the cowshed roller shutter according to the rainfall measurement value specifically includes:

if the rainfall measurement value is larger than a first preset rainfall threshold value, adjusting the opening rate of an upper roller shutter and a lower roller shutter on the first side of the cowshed to be 0%;

if the rainfall measurement value is larger than a second preset rainfall threshold value, the opening rates of the upper roller shutters and the lower roller shutters on the first side and the second side of the cowshed are adjusted to be 0%;

and if the rainfall measurement value is smaller than a first preset rainfall threshold value, deciding the operation state according to the comprehensive thermal environment index and the air pollution index.

Preferably, the determining the opening degree control mode of the cowshed roller shutter based on the comprehensive thermal environment index specifically includes:

if the comprehensive thermal environment index is larger than or equal to a preset environment threshold value, the opening rates of the upper roller shutters and the lower roller shutters on the first side and the second side of the cowshed are adjusted to be 100%;

and if the comprehensive thermal environment index is smaller than the preset environment threshold value, deciding the opening regulation and control mode according to the cowshed ventilation demand and the plurality of environment parameters.

Preferably, the cowshed roller shutter opening decision parameters include an area of a ventilation opening of the cowshed, the number of roller shutter windows of the cowshed, a ventilation difference between a first side and a second side of the cowshed, a sun shading difference between the first side and the second side of the cowshed, and the distribution number of cattle in the cowshed;

correspondingly, the calculation of the cowshed roller shutter opening decision parameter to obtain the roller shutter opening rate specifically includes:

will cowshed vent area evenly distributed extremely a plurality of groups in the cowshed are rolled up the curtain, obtain single group and roll up curtain open area, and combine the spool rotates the number of turns and calculates and obtain roll up curtain open rate.

Preferably, the calculating the cowshed roller shutter opening decision parameter to obtain a roller shutter opening ratio further includes:

if the comprehensive thermal environment index is within a first preset interval range, the roller shutters on the first side and the second side of the cowshed adopt the same opening ratio;

if the comprehensive thermal environment index is within a second preset interval range, firstly opening the roller shutter on the second side of the cowshed, and when the opening ratio of the roller shutter on the second side of the cowshed reaches 100%, opening the roller shutter on the first side of the cowshed.

Preferably, the decision correction of the operation state and the opening degree regulation and control mode based on the comprehensive thermal environment index and the air pollution index specifically includes:

if the comprehensive thermal environment index is greater than or equal to a first preset correction value and the air pollution index is less than or equal to a second preset correction value, maintaining the current regulation and control mode of the roller shutter;

if the comprehensive thermal environment index is smaller than the first preset correction value and the air pollution index is smaller than the second preset correction value, reducing the opening ratio of the cowshed roller shutter according to a first preset step length until the comprehensive thermal environment index approaches the first preset correction value or the air pollution index approaches the second preset correction value, and stopping adjusting the opening ratio of the cowshed roller shutter;

if the comprehensive thermal environment index is larger than the first preset correction value and the air pollution index is larger than the second preset correction value, increasing the opening ratio of the cowshed roller shutter according to a second preset step length until the air pollution index approaches to the second preset correction value, and stopping adjusting the opening ratio of the cowshed roller shutter;

if the comprehensive thermal environment index is smaller than the first preset correction value and the air pollution index is larger than the second preset correction value, increasing the opening ratio of the cowshed roller shutter according to the second preset step length until the comprehensive thermal environment index approaches a third preset correction value or the air pollution index approaches the second preset correction value, and stopping adjusting the opening ratio of the cowshed roller shutter;

and if the comprehensive thermal environment index is smaller than the third preset correction value and the air pollution index is larger than the second preset correction value, the system gives an alarm.

In a second aspect, an embodiment of the present invention provides an intelligent regulation and control system for a cowshed roller shutter, including:

the first acquisition module is used for acquiring a plurality of variables of the cowshed and initializing the variables to obtain a plurality of initialized variables;

the second acquisition module is used for acquiring a plurality of environmental parameters and rainfall measurement values;

the decision module is used for deciding the running state of the cowshed roller shutter according to the rainfall measurement value;

the index calculation module is used for acquiring a comprehensive thermal environment index and an air pollution index in the cowshed based on the plurality of initialization variables;

the judging module is used for judging the opening regulating and controlling mode of the cowshed roller shutter based on the comprehensive thermal environment index;

the demand estimation module is used for acquiring a cowshed ventilation demand estimation key parameter and obtaining a cowshed ventilation demand based on the cowshed ventilation demand estimation key parameter;

the parameter acquisition module is used for acquiring a cowshed roller shutter opening decision parameter based on the cowshed ventilation demand and the plurality of environmental parameters;

and the processing module is used for calculating the opening decision parameters of the cowshed roller shutter to obtain the opening rate of the roller shutter.

In a third aspect, an embodiment of the present invention provides an electronic device, including:

the intelligent regulation and control method for the cowshed roller blind comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the processor realizes the steps of any one of the intelligent regulation and control methods for the cowshed roller blind when executing the program.

According to the intelligent regulation and control method and system for the cowshed roller shutter, provided by the embodiment of the invention, the opening rate of the roller shutter is quantitatively regulated and controlled by combining analysis processing of various parameters, the situations of over ventilation or insufficient ventilation are reduced, and the environmental comfort level and the production efficiency of the cowshed are improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of an intelligent regulation and control device for a cowshed roller shutter according to an embodiment of the present invention;

fig. 2 is a flowchart of an intelligent regulation and control method for a cowshed roller shutter according to an embodiment of the present invention;

fig. 3 is a structural diagram of an intelligent regulation and control system for a cowshed roller shutter according to an embodiment of the present invention;

fig. 4 is a block diagram of an electronic device according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Under the condition that the construction form of the cowshed and the external maintenance materials are similar, the environmental parameters in the cowshed are mainly influenced by the environmental parameters outside the cowshed, the ventilation volume and the heat and moisture generation volume in the cowshed, and a certain correlation exists among the environmental parameters, the ventilation volume and the heat and moisture generation volume. In order to solve the above problems, embodiments of the present invention provide an intelligent control method for an aperture ratio of a cowshed roller shutter.

In a cowshed, a device as shown in fig. 1 is arranged to implement the method proposed by the embodiment of the invention, and the device comprises: the system comprises a roller shutter 1, a roller shutter opening degree acquisition node 2, a motor 3, a controller 4, an internal house environment parameter acquisition node 5, an external house environment parameter acquisition node 6, an Internet of things cloud platform and a data analysis processing terminal 7.

Fig. 2 is a flowchart of an intelligent regulation and control method for a cowshed roller shutter according to an embodiment of the present invention, as shown in fig. 2, including:

s1, acquiring a plurality of variables of the cowshed, and initializing the variables to obtain a plurality of initialized variables;

s2, obtaining a plurality of environmental parameters and rainfall measurement values;

s3, controlling the running state of the cowshed roller shutter according to the rainfall measurement value;

s4, acquiring a comprehensive thermal environment index and an air pollution index in the cowshed based on the plurality of initialization variables;

s5, judging the opening degree regulating and controlling mode of the cowshed roller shutter based on the comprehensive thermal environment index;

s6, acquiring cowshed ventilation quantity demand estimation key parameters, and acquiring cowshed ventilation quantity demand based on the cowshed ventilation quantity demand estimation key parameters;

s7, acquiring a cowshed roller shutter opening decision parameter based on the cowshed ventilation demand and the plurality of environmental parameters;

and S8, calculating the shedding decision parameters of the cowshed roller shutter to obtain the opening rate of the roller shutter.

Specifically, in step S1, several parameters related to the cowshed are obtained, including the length, width, ridge height, sill height, number of roller shutters, length and height of window openings, 100% opening of the roller shutters, number of cow raising heads in the cowshed, and the like of the cowshed, and these parameters are initialized.

In step S2, environmental parameters and rainfall measurement values outside the shed are further obtained, and the environmental parameters are collected by using sensors, which mainly include rainfall outside the shed (RF), and temperature and humidity outside the shed (T)_o、RH_o) CO outside the house₂Concentration (CO)_2o) Two-dimensional wind speed outside the house (V)_o) Temperature and humidity in the house (T)_i、RH_i) Two-dimensional wind speed (V) in the house_i) Solar radiation intensity in the house and CO in the house₂Concentration (CO)_2i) NH in the house₃Concentration (NH)_3i) And the like. The outdoor wind speed is measured at the position of the open wind direction which is the upwind direction of the perennial main wind direction, the measurement height is 3-5m, the measurement position of the wind speed in the cowshed is the middle position of the top end of each window hole, and the wind direction angle is defined to be 0 degree when the wind speed vertically enters the longitudinal wall of the cowshed.

In step S3, the operation state of the roller blind is determined according to the rainfall, the obtained outside rainfall measurement value is compared with a preset rainfall threshold set by the system, and the cowshed roller blind is differently determined and controlled according to different rainfall measurement values to match the difference of the ventilation requirements due to the difference of rainfall.

In step S4, in order to more accurately determine and decide the opening state of the roller shutter of the cowshed based on the above steps and also need to obtain relevant parameters in the cowshed for auxiliary determination, in the embodiment of the present invention, the evaluation of the appropriateness of the thermal environment and the air environment in the cowshed is adopted, and specific quantitative indexes are a comprehensive thermal environment index CCI and an air pollution index AQI, and the initialization variables have certain correlations, and the calculation formulas are respectively:

CCI＝Eq(1)+Eq(2)+Eq(3) (1)

wherein:

in the formula, T_iThe temperature in the house is in DEG C, RH is relative humidity in the house, V is two-dimensional wind speed (m/s), Vx is wind speed (m/s) parallel to the side wall direction, Vy is wind speed (m/s) vertical to the side wall direction, and P is_iPollution index of a single air pollutant i, C_iIs single phase air pollutionMeasured concentration of dye i (mg/m)³Or%), S_iThe environmental upper limit set value of a single air pollutant i, wherein the air pollutant comprises relative humidity and CO₂And NH₃The default upper limits are 80% and 1500mg/m, respectively³And 20mg/m³. Particularly, the air is inlet air when the included angle between the two-dimensional air velocity sensor and the inner side of the side wall is defined to be 0-180 degrees, and is outlet air when the included angle is 181-359 degrees.

In step S5, the curtain opening degree control mode is determined according to the comprehensive thermal environment index CCI calculated in step S4.

In step S6, the key parameters of the ventilation demand estimation model are further calculated, specifically including the heat generation quantity HPU of the animals in the barn and the water vapor quantity W emitted by the livestock and poultry in the barn_aThe amount W of water vapor generated on various surfaces in the house_sAir volume demand Q based on water vapor balance_reThe calculation formula is as follows:

wherein d is₁The calculated value of the moisture content corresponding to the measured value of the relative humidity outside the house is kg/kg dry air; d₂Calculating the moisture content in the air in the house under the set relative humidity condition, namely kg/kg dry air; rho_aIs the air density in kg/m³；W_aAnd W_eThe unit is kg/s for the amount of water vapor emitted by livestock and poultry and the amount of water vapor emitted by various surfaces in the house.

When the temperature T is greater than 0 ℃, e_s＝6.11×10^{7.45T/(237.3+T)}(9)

When the temperature T is less than 0 ℃, e_s＝6.11×10^{9.5T/(265.5+T)}(10)

In the formula, e_sTo saturation at corresponding temperatureThe water vapor pressure is Pa; RH is relative humidity in%;

P_wthe water vapor pressure under the corresponding temperature and relative humidity conditions is expressed in Pa; p is atmospheric pressure in Pa;

W_a＝9.98×10^-5ne^0.0291T(13)

W_e＝5.71×10^-5AT^1.2994(14)

wherein n is the number of animals in the house; a is the cowshed area, and the unit is m²；

HP＝5.6×m^0.75+22×Y+1.6×10^-5×p³(15)

In the formula, HP is the heat production quantity of each cattle at 20 ℃, and the unit is w; m is the weight of the cattle, and the unit is kg; y is daily milk yield of the cattle, and the unit is kg/d; p is the number of days of pregnancy of the cow in units of d; the HPU is the heat production quantity corrected according to the actual environment temperature, and the unit is kw; n is the number of heads of the cattle in the house; t is the actual ambient temperature in degrees Celsius.

Then, based on the key parameters of the ventilation demand estimation model, the ventilation demand Q is determined_re' in the embodiment of the present invention, based on 10000 times of loop iteration of the first preset neural network, the temperature T in the house is calculated when different ventilation amounts Q are calculated_esAnd humidity RH_esWherein the iterative range of Q is [0.1Q ]_re，10Q_re]Step size of 0.001Q_re. According to the iteration result, calculating a difference value between an estimated value of temperature and humidity in the house and a set temperature and humidity, and when the difference value is minimum, the corresponding Q is the ventilation quantity demand Q corresponding to the condition of heat preservation and air quality under the current condition_re', i.e.:

wherein Q_iFor the ventilation, m, input at the i-th iteration³/h；T_esiAnd RH_esiThe estimated value of the temperature and the humidity in the house output in the ith iterative calculation is obtained; t is_exAnd RH_exThe temperature and humidity in the appropriate house is a desired value or a set value.

Here, the first predetermined neural network employs a Radial Basis Function (RBF) neural network model, and its input layers include cowshed ventilation Q and actual shed outside temperature T_oActual humidity RH outside the house_oActual outdoor heat radiation intensity RAD_oHPU (heat production quantity) of livestock and poultry in the house and water vapor quantity W emitted by the livestock and poultry in the house_aThe amount W of water vapor generated on various surfaces in the house_sWait for 7 neurons, output layer including temperature T in house_esAnd humidity RH_esAnd (3) waiting for 2 neurons, wherein the RBF neural network model training process is as follows:

1) constructing a model training dataset

Normalizing the original data by adopting a Z-score method to construct an input layer data set matrix [ Q, T [ ]_O,RH_O,RAD_O,HPU,W_a,W_s]And an output layer data set matrix [ T ]_es，RH_es]Wherein the ratio of training data set to test data set is 75:25, T_o、RH_O、RAD_o、T_iThe original data of RH is directly obtained by a sensor, and the original data of Q can be obtained by calculation according to the following formula by using a carbon dioxide balance method during training:

wherein ER is the carbon dioxide discharge rate in kg/m³H; a is a constant and represents the amplitude of a sine function, and in a confined free-ranging mode, a is 0.22; h is the time of the current moment, and the unit is h by adopting a 24-hour system; h is_minThe unit of the time corresponding to the minimum activity of the dairy cow is h, and h is the time corresponding to the minimum activity of the dairy cow in a barn feeding and free-ranging mode_minThe value is 2.9; c_inAnd C_outMeasured values of carbon dioxide concentration inside and outside the house respectively in mg/m³；ρ_cIs the density of carbon dioxide in kg/m³。

2) Determining parameters of radial basis functions

Selecting a common Gaussian function as a radial basis function, and setting G (x, D)_i) Is the output of the ith unit of the hidden layer, x is a k-dimensional input vector, D_iIs the center of the i-th unit Gaussian function of the hidden layer, sigma_iThe width of the ith hidden node is, and M is the number of hidden nodes. Method for determining center D of basis function by adopting supervised learning method_iVariance σ_iAnd weight w from hidden layer to output layer_ij. Preset allowable error sum D_i、σ_i、w_ijHas a learning step size of η₁、η₂、η₃Let the error of each calculation be e_j(j ═ 1,2, … …, m), total error is E, and the amount of change in output cells and weights is E

Change the weight to w_i(n +1), the amount of change in the center of the hidden unit is

Center of change of D_i(n +1), amount of change in function width

Change width to sigma_i(n +1), calculating e in turn_j、

w_i(n+1)、

D_i(n+1)、

σ_i(n +1) and E, calculating in a loop until an allowable error is reached or the number of loop times is specified, and acquiring corresponding D_i、σ_i、w_ij。

In step S7, determining an opening decision parameter of the cowshed roller shutter based on the obtained plurality of environmental parameters and the cowshed ventilation demand obtained in step S6, wherein the opening decision parameter includes an area of a vent of the cowshed roller shutter_rq’(m³H) and priori knowledge of hot-press ventilation and wind pressure ventilation, and calculating the area OA (m) of the ventilation opening under the corresponding ventilation requirement²)。

Here, the second predetermined neural network is a BP neural network, and the input layer node is 7, including the ventilation requirement Q_re' Hot pressing effect L_h△ T of temperature difference between the inside and the outside of the house and V of wind speed outside the house_oAir inlet airSpeed V_yiThe cowshed volume S, cowshed high-span ratio f isoparametric, the output layer node is 1, vent area OA promptly, and S type transfer function is chooseed for use to the network, and the hidden layer is 6 layers, and main training process is as follows:

1) building data sets and performing network initialization

Normalizing the original data by adopting a Z-score method to construct an input layer data set matrix P ═ Q_re’,L_h,△T,V_o,V_yi,S,f]And output layer data set matrix T ═ OA]Wherein the ratio of training data set to test data set is still 75:25, L_hThe raw data may be calculated according to equation 28. Defining weights w for input layer to hidden layer_ijThe weight from hidden layer to output layer is w_jkThe bias of the input layer to the hidden layer is a_jThe bias from the hidden layer to the output layer is b_kLearning rate of l_rThe excitation function is g (x), the excitation functions of the hidden layer and the output layer of the network are respectively set as tan sig and logsig functions, the network training function is thingdx, the network learning function is learnd, and the network performance function is mse;

wherein, if the cowshed is provided with a ridge vent, h is the distance between the central line of the window and the ridge; if the cowshed only has side wall vents, h is 1/2 the height of the vents; g is a gravity constant, and is 9.81m/s²△ T is the actual temperature difference between the inside and outside of the house, with the unit being ℃_oThe actual temperature outside the house is expressed in units of ℃;

2) setting network parameters, performing iterative calculation, and updating the weight from the input layer to the hidden layer and the bias from the hidden layer to the output layer

And setting the network iteration number to be 10000, the expected error to be 0.000001, the learning rate lr to be 0.01 and training the network. Setting hidden layer output as H_jOutput layer output O_kThe desired output is Y_kUpdating the weights of the input layer to the hidden layer and the bias of the hidden layer to the output layer by iterative computations such that O_kAnd Y_kDifference value, i.e. E₂The size is extremely small;

the update formula of the weight is as follows:

w_jk＝w_jk+l_rH_j(Y_k-O_k) (33)

the update formula of the bias is as follows:

b_k＝b_k+l_r(Y_k-O_k) (35)

in step S8, expert knowledge is used to obtain a final roll-up opening rate according to the cowshed roll-up opening decision parameter calculated in step S7, and the specific opening size of the cowshed roll-up is controlled according to the roll-up opening rate to meet the cowshed ventilation requirement under the current environmental condition.

According to the embodiment of the invention, the opening rate of the roller shutter is quantitatively regulated and controlled by combining the analysis processing of various parameters, so that the condition of over ventilation or insufficient ventilation is reduced, and the environmental comfort and the production efficiency of the cowshed are improved.

Based on the above embodiment, the method further comprises:

Specifically, under the current environmental condition, the CCI and the AQI are calculated again according to the measured value of the environmental parameters in the cowshed, then the current remote state and the opening degree regulation and control mode of the cowshed roller shutter are corrected according to the updated CCI and AQI, and the system is controlled to be finely adjusted.

According to the embodiment of the invention, the comprehensive thermal environment index and the air pollution index are updated in real time, and the rolling shutter regulation and control system is corrected, so that the rolling shutter can be dynamically regulated, and the optimal temperature and ventilation effect of the cowshed are kept.

According to any of the above embodiments, the method further includes, after step S1, acquiring the number of turns of the roller of the cowshed roller blind.

Specifically, according to the principle of circle recording, the roller shutter is operated from a fully-opened state to a fully-closed state, then the roller shutter is operated from the fully-closed state to the fully-opened state, the number of turns of rotation of the roller shutter in the two operation processes is recorded, and the average number is taken as the number of turns of rotation of the roller shutter with the opening degree of 100% of the roller shutter and is used as the calculation basis of the actual opening degree of the roller shutter.

On the basis of obtaining a plurality of variables of the cowshed originally, the embodiment of the invention further obtains the average number of turns of the rolling shaft by completely counting the rolling shutter in two states, thereby facilitating the subsequent accurate calculation of the opening ratio of the rolling shutter.

Based on any of the above embodiments, step S3 of the method specifically includes:

Specifically, in the embodiment of the present invention, the first preset rainfall threshold of the rainfall measurement value is set to be 1mm, the second preset rainfall threshold is set to be 2mm, the first side of the cowshed roller shutter is the north side, and the second side is the south side.

If the RF is larger than a set value 1, controlling the north side up-down rolling shutter driving machine to operate, so that the opening rate of the north side up-down rolling shutter is adjusted to be 0%; if the RF is larger than the set value 2, the upper and lower rolling curtain driving machines on the south and north sides are controlled to operate, so that the opening rates of the upper rolling curtain and the lower rolling curtain on the south and north sides are adjusted to be 0 percent; if the RF is less than the set value 1, further calculation is needed according to the comprehensive thermal environment index and the air pollution index to decide the specific running state of the roller shutter.

In addition, the rainfall capacity of closing the north side roller shutter is 1mm by default, and the rainfall capacity of closing the south side roller shutter and the north side roller shutter simultaneously is 2 mm.

According to the embodiment of the invention, the running state of the roller shutters is intelligently regulated and controlled through the rainfall measurement value, and the roller shutters in different directions of the cowshed are selectively opened or closed according to the rainfall, so that the influence of rainfall on the ventilation of the cowshed is effectively reduced, and the comfort degree of the cowshed is improved.

Based on any of the above embodiments, step S5 of the method specifically includes:

Specifically, besides regulating and controlling the running state of the roller shutter, the opening regulating and controlling mode of the roller shutter is controlled, specifically, the judgment and control are carried out according to the CCI index, and the preset environment threshold is set as 25;

when the CCI is more than or equal to 25, the opening ratio of the rolling shutters at the north and south sides is 100 percent;

when CCI is less than 25, how to concretely realize the opening regulation and control mode of the roller shutter is further calculated according to the ventilation demand of the cowshed and a plurality of environmental parameters.

According to the embodiment of the invention, the operation of opening the roller shutter in place at the north and south sides once is realized by judging the threshold value of the comprehensive thermal environment index, and the roller shutter can be effectively supplemented by adjusting the specific parameters under the condition that the threshold value is not met, so that diversified ventilation requirements are met.

Based on any one of the embodiments, the cowshed roller shutter opening decision parameters comprise an area of a ventilation opening of the cowshed, the number of roller shutter windows of the cowshed, a ventilation difference between a first side and a second side of the cowshed, a sun shading difference between the first side and the second side of the cowshed and the distribution number of cows in the cowshed;

here, for the embodiment of the present invention, the cowshed roller shutter opening decision parameter is the area of the ventilation opening, the number of cowshed roller shutter windows, the difference in the ventilation and sunshade requirements on the north and south sides, the distribution of animals in the cowshed, and the like.

Correspondingly, step S8 in the method specifically includes:

Specifically, the calculated ventilation opening area of the cowshed is the whole ventilation area demand of the cowshed, and the cowshed is provided with a plurality of groups of roller blinds, so that the ventilation opening area needs to be evenly distributed to the plurality of groups of roller blinds, and the opening ratio R of the roller blind converted from the opening area of the single group of roller blinds is obtained through the rolling blind rotating shaft circle counter obtained in the foregoing embodiment_oThereby guiding the overall regulation and control of the roller shutter.

Based on any embodiment, the method further includes, after step S8:

Specifically, in the embodiment of the present invention, the first preset interval is set to [15, 25 ], and the second preset interval is set to (— ∞, 15);

when CCI is more than or equal to 15 and less than 25, the south and north side roller shutters can adopt the same opening rate, and the upper roller shutter is opened preferentially; when CCI is less than 15, the south side roller shutter is opened preferentially, and when the opening rate of the south side roller shutter reaches 100%, the north side roller shutter is further opened.

According to the embodiment of the invention, by judging the comprehensive thermal environment index, a diversified regulation and control mode is adopted for the opening mode of the roller shutter, and the priorities of the upper roller shutter, the lower roller shutter, the south side and the north side are particularly distinguished, so that the regulation and control mode is more flexible and is close to the actual requirement.

Based on any one of the above embodiments, the performing decision-making correction on the operation state and the opening degree regulation and control manner based on the comprehensive thermal environment index and the air pollution index specifically includes:

Specifically, in order to further realize real-time dynamic regulation and control, according to different values of the comprehensive thermal environment index and the air pollution index, a plurality of fine adjustment modes are set, in the embodiment of the present invention, a first preset correction value is set to 5, a second preset correction value is set to 1, a third preset correction value is set to 0, a first preset step length is set to 2%, a second preset step length is set to 1%, and the adjustment modes are as follows:

if CCI is more than or equal to 5 and AQI is less than or equal to 1, maintaining the current running state;

if CCI is less than 5 and AQI is less than 1, reducing the opening rate of the roller shutter according to a 2% step-by-step mode, wherein the threshold value for finishing fine adjustment is that AQI approaches to 1 or CCI approaches to 5;

if CCI is more than 5 and AQI is more than 1, increasing the opening rate of the roller shutter according to a 1% step-by-step mode, and ending the fine adjustment with the threshold value that AQI approaches to 1;

if CCI is less than 5 and AQI is more than 1, increasing the opening rate of the roller shutter according to a 1% step-by-step mode, wherein the threshold value for finishing fine adjustment is that AQI approaches to 1 or CCI approaches to 0;

if CCI is less than 0 and AQI is more than 1, the system alarms.

According to the embodiment of the invention, on the basis of obtaining the opening rate of the roller shutter, the opening state of the roller shutter is corrected and finely adjusted according to different values of the comprehensive thermal environment index and the air pollution index, so that the condition that the roller shutter of the cowshed can be adjusted at any time along with the change of the environment is flexibly and effectively met, and manual intervention is not needed.

Fig. 3 is a structural diagram of an intelligent regulation and control system for a cowshed roller shutter according to an embodiment of the present invention, as shown in fig. 3, including: a first obtaining module 31, a second obtaining module 32, a decision module 33, an index calculating module 34, a judging module 35, a demand estimating module 36, a parameter obtaining module 37 and a processing module 38; wherein:

the first obtaining module 31 is configured to obtain a plurality of variables of a cowshed, and initialize the variables to obtain a plurality of initialized variables; the second obtaining module 32 is configured to obtain a plurality of environmental parameters and rainfall measurement values; the decision module 33 is used for deciding the running state of the cowshed roller shutter according to the rainfall measurement value; the index calculation module 34 is used for acquiring a comprehensive thermal environment index and an air pollution index in the cowshed based on the plurality of initialization variables; the judging module 35 is configured to judge an opening regulation and control manner of the cowshed roller shutter based on the comprehensive thermal environment index; the demand estimation module 36 is configured to obtain a cowshed ventilation demand estimation key parameter, and obtain a cowshed ventilation demand based on the cowshed ventilation demand estimation key parameter; the parameter obtaining module 37 is configured to obtain a cowshed roller shutter opening decision parameter based on the cowshed ventilation demand and the plurality of environmental parameters; the processing module 38 is configured to calculate the shedding decision parameter of the cowshed roller shutter to obtain the roller shutter shedding rate.

The system provided by the embodiment of the present invention is used for executing the corresponding method, the specific implementation manner of the system is consistent with the implementation manner of the method, and the related algorithm flow is the same as the algorithm flow of the corresponding method, which is not described herein again.

Based on any of the above embodiments, the system further includes a decision correction module 39, where the decision correction module 39 is configured to obtain the plurality of environmental parameters again based on the opening ratio of the roller shutter, and recalculate the comprehensive thermal environment index and the air pollution index based on the plurality of environmental parameters; and carrying out decision correction on the operation state and the opening regulation and control mode based on the comprehensive thermal environment index and the air pollution index.

Based on any of the above embodiments, the first obtaining module 31 further includes a reel counting submodule 311, and the reel counting submodule 311 is configured to obtain the number of turns of the reel of the cowshed roller blind.

Based on any of the above embodiments, the decision module 33 includes a first decision sub-module 331, a second decision sub-module 332, and a third decision sub-module 333; wherein:

the first decision sub-module 331 is configured to, if the rainfall measurement value is greater than a first preset rainfall threshold, adjust the opening rates of the upper roller shutter and the lower roller shutter on the first side of the cowshed to 0%; the second decision sub-module 332 is configured to, if the rainfall measurement value is greater than a second preset rainfall threshold, adjust the opening rates of the upper roller blinds and the lower roller blinds on the first side and the second side of the cowshed to 0%; the third decision sub-module 333 is configured to decide the operation state according to the comprehensive thermal environment index and the air pollution index if the rainfall measurement value is smaller than a first preset rainfall threshold.

Based on any of the above embodiments, the determining module 35 includes: a first judgment sub-module 351 and a second judgment sub-module 352; wherein:

the first judgment submodule 351 is used for adjusting the opening rates of the upper roller shutters and the lower roller shutters on the first side and the second side of the cowshed to be 100% if the comprehensive thermal environment index is greater than or equal to a preset environment threshold value; the second determining submodule 352 is configured to determine the opening degree adjusting and controlling manner according to the cowshed ventilation demand and the plurality of environmental parameters if the comprehensive thermal environment index is smaller than the preset environmental threshold.

Based on any of the above embodiments, the cowshed roller shutter opening decision parameters in the parameter obtaining module 37 include a cowshed vent opening area, the number of cowshed roller shutter windows, a difference in ventilation of a first side and a second side of the cowshed, a difference in sunshade of the first side and the second side of the cowshed, and the number of distributed cows in the cowshed;

correspondingly, the processing module 38 is specifically configured to uniformly distribute the ventilation opening area of the cowshed to a plurality of groups of roller blinds in the cowshed to obtain a single group of opening areas of the roller blinds, and calculate the opening rate of the roller blinds according to the number of rotation turns of the winding shaft.

Based on any of the above embodiments, the processing module 38 further includes a first processing sub-module 381 and a second processing sub-module 382; wherein:

the first processing sub-module 381 is configured to, if the comprehensive thermal environment index is within a first preset interval range, adopt the same opening ratio for the roller blinds on the first side and the second side of the cowshed; the second processing submodule 382 is configured to, if the integrated thermal environment index is within a second preset interval range, first turn on the roller shutter on the second side of the cowshed, and then turn on the roller shutter on the first side of the cowshed when the opening ratio of the roller shutter on the second side of the cowshed reaches 100%.

Based on any of the above embodiments, the decision modification module 39 specifically includes: a first decision modification submodule 391, a second decision modification submodule 392, a third decision modification submodule 393, a fourth decision modification submodule 394 and a fifth decision modification submodule 395; wherein:

the first decision-making correction submodule 391 is used for maintaining the current roller shutter regulation and control mode if the comprehensive thermal environment index is greater than or equal to a first preset correction value and the air pollution index is less than or equal to a second preset correction value; the second decision-making correction submodule 392 is configured to, if the comprehensive thermal environment index is smaller than the first preset correction value and the air pollution index is smaller than the second preset correction value, decrease the opening rate of the cowshed roller shutter according to a first preset step length until the comprehensive thermal environment index approaches the first preset correction value or the air pollution index approaches the second preset correction value, and stop adjusting the opening rate of the cowshed roller shutter; the third decision-making correction submodule 393 is configured to increase the opening ratio of the cowshed roller shutter according to a second preset step length if the comprehensive thermal environment index is greater than the first preset correction value and the air pollution index is greater than the second preset correction value, and stop adjusting the opening ratio of the cowshed roller shutter until the air pollution index approaches the second preset correction value; the fourth decision-making correction submodule 394 is configured to, if the comprehensive thermal environment index is smaller than the first preset correction value and the air pollution index is greater than the second preset correction value, increase the opening ratio of the cowshed roller shutter according to the second preset step length until the comprehensive thermal environment index approaches a third preset correction value or the air pollution index approaches the second preset correction value, and stop adjusting the opening ratio of the cowshed roller shutter; the fifth decision correction submodule 395 is configured to perform a system alarm if the integrated thermal environment index is smaller than the third preset correction value and the air pollution index is larger than the second preset correction value.

Fig. 4 illustrates a physical structure diagram of an electronic device, which may include, as shown in fig. 4: a processor (processor)410, a communication Interface 420, a memory (memory)430 and a communication bus 440, wherein the processor 410, the communication Interface 420 and the memory 430 are communicated with each other via the communication bus 440. The processor 410 may call logic instructions in the memory 430 to perform the following method: acquiring a plurality of variables of a cowshed, and initializing the variables to obtain a plurality of initialized variables; acquiring a plurality of environmental parameters and rainfall measurement values; controlling the running state of the cowshed roller shutter according to the rainfall measurement value; acquiring a comprehensive thermal environment index and an air pollution index in the cowshed based on the plurality of initialization variables; judging the opening regulation and control mode of the cowshed roller shutter based on the comprehensive thermal environment index; acquiring a cowshed ventilation quantity demand estimation key parameter, and estimating the key parameter based on the cowshed ventilation quantity demand to obtain the cowshed ventilation quantity demand; acquiring a cowshed roller shutter opening decision parameter based on the cowshed ventilation demand and the plurality of environmental parameters; and calculating the shedding decision parameters of the cowshed roller shutters to obtain the shedding rate of the roller shutters.

In addition, the logic instructions in the memory 430 may be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. An intelligent regulation and control method for a cowshed roller shutter is characterized by comprising the following steps:

acquiring a plurality of variables of a cowshed, and initializing the variables to obtain a plurality of initialized variables; wherein the variables comprise the length, the width, the ridge height, the sill height, the number of the roller blind windows, the length and the height of the window hole, the 100 percent opening degree of the roller blind and the number of the cow breeding heads in the cowshed;

obtaining a plurality of environmental parameters and rainfall measurement values, wherein the rainfall measurement values comprise rainfall outside the shed, and the environmental parameters comprise temperature and humidity outside the shed and CO outside the shed₂Concentration, two-dimensional wind speed outside the house, temperature and humidity inside the house, two-dimensional wind speed inside the house, solar radiation intensity inside the house and CO inside the house₂Concentration, NH in house₃Concentration;

acquiring a comprehensive thermal environment index and an air pollution index in the cowshed based on the plurality of initialization variables; wherein, the comprehensive thermal environment index is obtained by calculating the temperature in the house, the relative humidity in the house and the two-dimensional wind speed in the house, and the air pollution index is obtained by measuring the concentration and CO in the relative humidity house₂Concentration and NH measurement in house₃Calculating the measured concentration in the house and the environment upper limit set value;

calculating the shedding decision parameters of the cowshed roller shutters to obtain the shedding rate of the roller shutters;

the key parameters for estimating the ventilation quantity demand of the cowshed comprise the heat generation quantity HPU of animals in the cowshed and the water vapor quantity W emitted by the livestock and poultry in the cowshed_aThe amount W of water vapor generated on various surfaces in the house_sAir volume demand Q based on water vapor balance_re，Q_reThe calculation formula is as follows:

wherein d is₁The calculated value of the moisture content corresponding to the measured value of the relative humidity outside the house is kg/kg dry air;d₂calculating the moisture content in the air in the house under the set relative humidity condition, namely kg/kg dry air; rho_aIs the air density in kg/m³；W_aAnd W_eThe unit is kg/s for the steam amount emitted by the livestock and poultry and the steam amount emitted by various surfaces in the house;

further, determining the cowshed ventilation demand Q_re’：

Wherein Q_iFor the ventilation, m, input at the i-th iteration³/h；T_esiAnd RH_esiThe estimated value of the temperature and the humidity in the house output in the ith iterative calculation is obtained; t is_exAnd RH_exThe temperature and humidity in the house is a desired value or a set value;

further, the estimated value of the temperature and humidity in the cowshed output in the iterative computation is determined based on a first preset neural network, and the variables of an input layer of the first preset neural network comprise the ventilation Q of the cowshed and the actual temperature T outside the cowshed_oActual humidity RH outside the house_oActual outdoor heat radiation intensity RAD_oHPU (heat production quantity) of livestock and poultry in the house and water vapor quantity W emitted by the livestock and poultry in the house_aAnd the amount W of water vapor generated on various surfaces in the house_s；

The calculation of the cowshed roller shutter opening decision parameters comprises the area OA of the ventilation opening of the cowshed roller shutter, the OA is based on a second preset neural network, and the input layer variable of the second preset neural network comprises the ventilation requirement Q_re' Hot pressing effect L_h△ T of temperature difference between the inside and the outside of the house and V of wind speed outside the house_oAir inlet air speed V_yiThe volume S of the cowshed and the high span ratio f of the cowshed.

2. The intelligent regulation and control method of a cowshed roller shutter according to claim 1, characterized in that the method further comprises:

3. The intelligent regulation and control method of a cowshed roller blind according to claim 1, wherein the method comprises the steps of obtaining a plurality of variables of the cowshed, initializing the variables to obtain a plurality of initialized variables, and then obtaining the number of turns of a scroll of the cowshed roller blind.

4. The intelligent regulation and control method of a cowshed roller shutter according to claim 1, wherein the controlling the running state of the cowshed roller shutter according to the rainfall measurement specifically comprises:

5. The intelligent regulation and control method of a cowshed roller shutter according to claim 1, wherein the judging the opening regulation and control mode of the cowshed roller shutter based on the comprehensive thermal environment index specifically comprises:

6. The intelligent cowshed roller blind regulating and controlling method according to claim 3, wherein the cowshed roller blind opening decision parameters comprise a cowshed vent opening area, a cowshed roller blind window number, a cowshed first side and second side ventilation difference, a cowshed first side and second side shading difference and a cowshed inside cow distribution number;

7. The intelligent cowshed roller blind regulating and controlling method according to claim 6, wherein the calculating the cowshed roller blind opening decision parameter to obtain a roller blind opening ratio further comprises:

8. The intelligent regulation and control method of a cowshed roller shutter according to claim 2, wherein the decision-making modification of the operation state and the opening regulation and control mode based on the comprehensive thermal environment index and the air pollution index specifically comprises:

9. The utility model provides a curtain intelligent control system is rolled up to cowshed which characterized in that includes:

the first acquisition module is used for acquiring a plurality of variables of the cowshed and initializing the variables to obtain a plurality of initialized variables; wherein the variables comprise the length, the width, the ridge height, the sill height, the number of the roller blind windows, the length and the height of the window hole, the 100 percent opening degree of the roller blind and the number of the cow breeding heads in the cowshed;

the second acquisition module is used for acquiring a plurality of environmental parameters and rainfall measurement values, the rainfall measurement values comprise rainfall outside the shed, and the environmental parameters comprise temperature and humidity outside the shed and CO outside the shed₂Concentration, two-dimensional wind speed outside the house, temperature and humidity inside the house, two-dimensional wind speed inside the house,Solar radiation intensity in the house and CO in the house₂Concentration, NH in house₃Concentration, etc.;

the index calculation module is used for acquiring a comprehensive thermal environment index and an air pollution index in the cowshed based on the plurality of initialization variables; wherein, the comprehensive thermal environment index is obtained by calculating the temperature in the house, the relative humidity in the house and the two-dimensional wind speed in the house, and the air pollution index is obtained by measuring the concentration and CO in the relative humidity house₂Concentration and NH measurement in house₃Calculating the measured concentration in the house and the environment upper limit set value;

the processing module is used for calculating the opening decision parameters of the cowshed roller shutter to obtain the opening rate of the roller shutter;

wherein d is₁The calculated value of the moisture content corresponding to the measured value of the relative humidity outside the house is kg/kg dry air; d₂Calculating the moisture content in the air in the house under the set relative humidity condition, namely kg/kg dry air; rho_aIs the air density in kg/m³；W_aAnd W_eThe unit is kg/s for the steam amount emitted by the livestock and poultry and the steam amount emitted by various surfaces in the house;

further, determining the cowshed ventilation demand Q_re’：

further, the estimated value of the temperature and humidity in the cowshed output in the iterative computation is determined based on a first preset neural network, and the variables of an input layer of the first preset neural network comprise the ventilation Q of the cowshed and the actual temperature T outside the cowshed_oActual humidity RH outside the house_oActual outdoor heat radiation intensity RAD_oHPU (heat production quantity) of livestock and poultry in the house and water vapor quantity W emitted by the livestock and poultry in the house_aThe amount W of water vapor generated on various surfaces in the house_s；

10. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the steps of the intelligent regulation method of cowshed roller blind according to any one of claims 1 to 7 when executing the program.