Chicken house capable of controlling natural illumination based on AI and control method thereof

Abstract

The invention discloses a henhouse capable of controlling natural illumination based on AI, which comprises a henhouse body, a plurality of mounting holes are formed in the top of the henhouse body, a plurality of light transmitting devices are arranged in the mounting holes and are respectively in signal connection with an illumination control system, and a plurality of light sensors are further arranged in the henhouse body; the chicken house illumination system solves the problems that in the prior art, spectrum lines of a fluorescent lamp spectrum of a chicken house illumination system are discontinuous, an ideal spectrum meeting the physiological needs of chickens cannot be simulated, the chickens are prone to stress behaviors, and immunity is restrained to a certain extent, full-time natural illumination is achieved through the natural light transmitting device, growth of chicken flocks is better facilitated, and the chicken house illumination system is suitable for being popularized and applied. And the problem that the actual illumination effect in the chicken house cannot be monitored in real time due to the fact that an existing illumination system is generally turned on in a one-way mode and turned off regularly is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of chicken house breeding, and in particular to a chicken house based on AI to control natural lighting and a control method thereof. Background Art

[0002] In the modern poultry farming industry, the lighting system of the chicken house is one of the key factors to ensure the healthy growth and efficient production of the chickens. At present, the lighting systems used in most chicken houses are mainly divided into two basic types: traditional incandescent lighting and simple fluorescent lighting. Traditional incandescent lamps are still widely used in some small or old chicken houses because of their relatively low prices. Fluorescent lamps also occupy a certain market share because of their slightly lower energy consumption and larger luminous area.

[0003] Natural light contains a rich and continuous spectrum, which has a natural inducing effect on chickens' feeding, activities, reproduction and other behaviors. However, the current artificial lighting system, the incandescent lamp spectrum is warm yellow but lacks key bands such as ultraviolet, and the fluorescent lamp spectrum has a discontinuous spectrum line problem, which cannot simulate the ideal spectrum that fits the physiological needs of chickens, making chickens prone to stress behavior and their immunity is also suppressed to a certain extent.

[0004] Moreover, the existing lighting system is usually one-way open and timed closed, and it is impossible to monitor the actual lighting effect in the chicken house in real time. Key information such as real-time values ​​of light intensity is difficult to collect, and farmers cannot make timely optimization adjustments to the lighting system according to the growth dynamics of the chicken flock. Summary of the invention

[0005] In order to solve the above-mentioned technical problems, the present invention provides a chicken house based on AI to control natural lighting and a method for controlling lighting.

[0006] The technical solution of the present invention is achieved in this way:

[0007] A chicken house based on AI-controlled natural lighting, comprising a main body of the chicken house, a plurality of mounting holes being arranged on the top of the main body, a light-transmitting device being arranged in the mounting holes, and a plurality of light-transmitting devices being respectively connected to a lighting control system signal, and a plurality of light sensors being also arranged in the main body.

[0008] The light transmission device comprises a transparent lighting plate arranged on the top, a light guide tube is connected to the edge of the lighting plate, and a light diffusion device is installed at the bottom.

[0009] Preferably, the light diffusion device includes a sleeve, light homogenizing plates respectively arranged at the top and bottom of the sleeve, and an LED lamp arranged on the inner wall of the middle part of the sleeve.

[0010] Preferably, the top of the light guide tube of the light transmission device is threadedly connected to the lighting board, and the bottom of the light guide tube is threadedly connected to the sleeve. Preferably, the light transmission device also includes a clustering plate arranged below the bottom of the lighting board, the clustering plate is an elliptical convex lens, and the edge of the convex lens is threadedly connected to the light guide tube.

[0011] Preferably, the lighting panel is umbrella-shaped, and a plurality of concave light-collecting grooves are evenly distributed on the umbrella surface, and the light-collecting grooves are concave semicircular grooves.

[0012] Preferably, the inner wall of the light guide is a reflective surface, and a shading device is also provided on one side of the inner wall of the light guide.

[0013] A method for controlling lighting in a chicken house, comprising the following steps:

[0014] S1, preset the light intensity of the chicken house to be K, and the light time to be T;

[0015] S2, real-time detection of the light intensity K0 of the chicken house, and establishment of a table to record the light intensity K0 values ​​of each day according to time period;

[0016] S3, calculate the difference between the preset light intensity K and the real-time light intensity K0, when K-K0<0, adjust the angle of the light shield in the light guide, when K-K0>1, turn on the LED light, and adjust the LED light intensity according to the difference until it reaches 0 <K-K0<1;

[0017] S4, real-time detection of the light spectrum value W0 of the chicken house, and recording the light spectrum value W0 of each day according to the time period;

[0018] S5, according to the changes in the growth stage of the chicken flock, uses the adjustable spectrum characteristics of LED lamps to adjust the proportion of light in different bands through control software.

[0019] Preferably, in step S3, the calculation steps are as follows:

[0020] L1, set the detection interval to 5 minutes, obtain the light intensity of multiple light sensors, K0 = (k1, k2, k3, ...k n ), remove the maximum and minimum values ​​to obtain the K0 value;

[0021] L2, the difference between the preset light intensity value K and the real-time detected light intensity value K0 is K-K0=ΔK;

[0022] L3 When ΔK<0, the light intensity is adjusted by adjusting the angle of the sunshade. The calculation formula is:

[0023]

[0024] L4, when ΔK>1, turn on or adjust the LED lamp power. The formula for calculating the LED lamp power is as follows:

[0025] ρ=β×(ΔK-1)

[0026] Where ρ is the power adjustment ratio, β is the power adjustment coefficient, V×ρ=V1, V1 is the adjusted LED lamp power, and V is the current LED lamp power.

[0027] Preferably, the step S3 further comprises the following steps:

[0028] C1, simulates the natural habits of chickens, presets lighting modes, including feeding mode, rest mode and activity mode, and sets the light intensity K of the above multiple modes respectively m ;

[0029] C2, simulates the seasonal activity habits of chickens, set to winter, summer, autumn and spring, and set the light intensity Kv according to the above multiple seasons;

[0030] C3, the light intensity value K obtained according to step L2 and step L3 m and K v , get the light intensity K suitable for the current date and time.

[0031] The present invention solves the problem that the fluorescent lamp spectrum of the chicken house lighting system in the prior art has discontinuous spectral lines, and cannot simulate the ideal spectrum that fits the physiological needs of chickens, which makes chickens prone to stress behavior and their immunity is also suppressed to a certain extent. The light-transmitting device using natural light can achieve full-time natural lighting, which is more conducive to the growth of chickens. The present invention also solves the problem that the existing lighting system is usually one-way opened and closed at a time, and the actual lighting effect in the chicken house cannot be monitored in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a main body schematic diagram of a chicken house based on AI-controlled natural lighting of the present invention;

[0033] Figure 2 It is a schematic diagram of a light transmission device for a chicken house based on AI to control natural lighting according to the present invention;

[0034] Figure 3 This is an exploded view of a light transmission device for a chicken house based on AI to control natural lighting according to the present invention.

[0035] Figure 4 It is a schematic diagram of a lighting panel of a chicken house based on AI to control natural lighting according to the present invention.

[0036] Figure 5 It is a schematic diagram of a method for controlling lighting in a chicken house of the present invention.

[0037] 1. Main body; 2. Light-transmitting device; 21. Light-collecting plate; 22. Light-guiding tube; 23. Sleeve; 24. Light-homogenizing plate; 25. Light-shielding device; 26. LED lamp; 27. Convex lens; 28. Focusing groove. DETAILED DESCRIPTION

[0038] Example 1

[0039] The present invention discloses a chicken house based on AI-controlled natural lighting, comprising a main body of the chicken house, a plurality of mounting holes being arranged on the top of the main body, a light transmitting device being arranged in the mounting holes, and a plurality of light transmitting devices being provided, which are respectively connected with signals of a lighting control system, and a plurality of light sensors being arranged in the main body; the light transmitting device comprising a transparent lighting panel arranged on the top, a light guide being connected to the edge of the lighting panel, a light diffusing device being installed at the bottom, the light diffusing device comprising a sleeve, light homogenizing plates respectively arranged at the top and bottom of the sleeve, and an LED lamp arranged on the inner wall of the middle portion of the sleeve.

[0040] Preferably, the top of the light guide tube of the light transmission device is threadedly connected to the lighting board, and the bottom of the light guide tube is threadedly connected to the sleeve. Preferably, the light transmission device also includes a clustering plate arranged below the bottom of the lighting board, the clustering plate is an elliptical convex lens, and the edge of the convex lens is threadedly connected to the light guide tube.

[0041] Preferably, the lighting panel is umbrella-shaped, and a plurality of concave light-collecting grooves are evenly distributed on the umbrella surface, and the light-collecting grooves are concave semicircular grooves.

[0042] Preferably, the inner wall of the light guide tube is a reflective surface, and a shading device is also provided on one side of the inner wall of the light guide tube. A shading section is provided in the middle of the light guide tube, and the inner wall of the section is square in shape. A motor is provided on one side wall of the shading section. The output shaft of the motor is connected to the shading plate to control the opening or closing of the shading plate. The motor is a stepping motor, which can accurately control the opening angle of the shading plate.

[0043] Preferably, in view of the environment of the chicken house, the light sensors are distributed according to the vertical height, with a light sensor set every 3 meters in the vertical height, and are distributed according to the horizontal distance, with a light sensor set every 8-10 meters in the horizontal distance.

[0044] A method for controlling lighting in a chicken house, comprising the following steps:

[0045] S1, preset the light intensity of the chicken house as K, the light time as T, comprehensively consider the chicken breed, age, breeding purpose (broiler fattening, laying hens, etc.), refer to the authoritative standards of the poultry breeding industry and past successful breeding experience, accurately set the initial light intensity and time values, and enter them into the chicken house lighting control system;

[0046] S2. Real - time detect the light intensity \(K_0\) in the chicken coop, create a table, and record the light intensity \(K_0\) values every day according to time periods. Real - time detect the light intensity \(K_0\) in the chicken coop, create a table, and record the light intensity \(K_0\) values every day according to time periods. Install high - precision light intensity sensors reasonably in different locations of the chicken coop, including corners, the center, and each layer of multi - layer chicken coops. The sensors collect data every specific time interval (such as 5 minutes), transmit it to the background database, and automatically generate a light intensity change table, clearly presenting the light intensity fluctuation situation throughout the 24 - hour day;

[0047] S3. Calculate the difference between the preset light intensity \(K\) and the real - time light intensity \(K_0\). When \(K - K_0\lt0\), adjust the angle of the light - shielding plate in the light - guiding tube. When \(K - K_0\gt1\), turn on the LED lights and adjust the LED light intensity according to the difference until \(0\lt K - K_0\lt1\). The adjustment of the light - shielding plate angle is achieved by an electric push rod for precise fine - tuning, and the adjustment amplitude each time is controlled within \(1 - 5^{\circ}\); The LED lights use intelligent lamps with a stepless dimming function of \(0 - 100\%\). The dimming process is linear and stable, avoiding chicken group stress caused by sudden light changes;

[0048] S4. Real - time detect the light spectrum value \(W_0\) in the chicken coop and record the light spectrum value \(W_0\) every day according to time periods;

[0049] S5. According to the change of the chicken group growth stage, utilize the characteristic of the adjustable spectrum of the LED lamps, and adjust the proportion of light in different bands through the control software. Set the turning points of key growth stages such as from the brooding period to the laying period of laying hens and from the brooding period to the fattening period of broiler chickens as the spectrum adjustment trigger points. The software has multiple built - in preset spectrum modes, and one - key switching can adapt to the new growth stage of the chicken group. Preferably, in the step S3, the calculation steps are as follows:

[0050] L1. Set the detection interval time to 5 minutes, obtain the light intensities of multiple light sensors, \(K_0=(k_1,k_2,k_3,\cdots,k_n)\), remove the maximum and minimum values to obtain the \(K_0\) value. Use the extreme - value - removing method in statistics to remove the maximum and minimum values in this group of data. The mean value after processing is the accurate real - time light intensity. Such an operation can effectively avoid data deviation caused by accidental factors such as sensor failures and blockages, making the collected data more representative; n ),去除最大值和最小值,得到K0值,运用统计学中的去极值法,剔除该组数据中的最大值与最小值,经处理后的均值即为精准的实时光照强度。这样操作能够有效规避个别传感器因故障、遮挡等偶然因素造成的数据偏差,让采集数据更具代表性。;

[0051] L2. The difference between the preset light intensity value \(K\) and the real - time detected light intensity value \(K_0\) is \(K - K_0=\Delta K\); Accurately calculate the difference between the preset light intensity value and the real - time obtained light intensity value, and this difference will be used as the adjustment data for subsequent light - regulation actions; L3 When \(\Delta K\lt0\), adjust the light intensity by adjusting the angle of the light - shielding plate. The calculation formula is:

[0052]

[0053] L4, when ΔK>1, turn on or adjust the LED lamp power. The formula for calculating the LED lamp power is as follows:

[0054] ρ=β×(ΔK-1)

[0055] Where ρ is the power adjustment ratio, β is the power adjustment coefficient, V×ρ=V1, V1 is the adjusted LED lamp power, and V is the current LED lamp power.

[0056] Preferably, the step S3 further comprises the following steps:

[0057] C1, simulates the natural habits of chickens, presets lighting modes, including feeding mode, rest mode and activity mode, and sets the light intensity K of the above multiple modes respectively m For example, when the chicks are feeding, the lux value is set to a specific level that can fully stimulate vision and induce feeding; when they are resting, it is adjusted to an extremely low level to ensure a quiet sleeping environment;

[0058] C2, simulates the seasonal activity habits of chickens, and is set to winter, summer, autumn and spring. The light intensity Kv is set according to the aforementioned multiple seasons. For example, in summer, the days are long and strong light can easily cause stress in chickens, so the light intensity Kv should be appropriately lowered; in winter, the days are short and additional light is needed to maintain the physiological rhythm, so the light intensity Kv should be adjusted accordingly;

[0059] C3, the light intensity value K obtained according to step L2 and step L3 m and K v , get the light intensity K suitable for the current date and time, combine the current accurate date and time information, dynamically weigh the weights of the two, and take the weighted sum to get the light intensity that fits the current actual breeding scene, so that the light supply matches the current physiological and behavioral needs of the chickens.

[0060] More preferably, in step C3, the m and K v Get the light intensity K suitable for the current date and time, specifically:

[0061] In the feeding mode, the light intensity corresponding to the feeding stage of the chickens is K m1 , determined according to the breed and age of the chicken. For example, in the early stage of brooding, the lux is usually set at 20-30 lux in order to stimulate the vision and appetite of chicks; in the fattening period of broilers, it can be adjusted to 30-50 lux;

[0062] In rest mode, when the chickens enter the rest state, the corresponding light intensity is K m2 , rest requires a darker environment, set at 1-5 lux, to create a quiet atmosphere similar to night, to help chickens relax and fall asleep;

[0063] Activity mode: The light intensity during the daily activity period of the chickens is set to K m3 , maintain sufficient visibility for chickens to move freely, socialize, take sand baths, etc. When laying hens are active, the value is about 40-60 lux. Broilers are more active, and the adjustment range is between 50-80 lux;

[0064] Combined with seasonal factors, the details are as follows:

[0065] Winter: In winter, the days are short and the natural light is insufficient, so additional artificial light is needed. Let the light intensity correction coefficient corresponding to winter be α1, with a value range of 1.1-1.3. If it is winter and in active mode, the corrected light intensity K V1 =α1×K mn ;

[0066] Summer: In summer, the days are long and too much light can easily cause stress in chickens. Let the light intensity correction coefficient corresponding to summer be α1, with a value range of 0.8-0.9. For example, in summer, when K is in active mode, V2 =α2×K mn ;

[0067] Spring and autumn: In spring and autumn, the daytime is moderate and the light intensity is relatively stable. The correction coefficients are set to α3 and α4, which are 0.98 and 1.02 respectively. The corresponding corrected light intensity is K V3 =α3×K mn , K V4 =α4×K mn .

[0068] Preferably, in step S4 and step S5, the spectrum value W is adjusted as follows: J1, the light spectrum in the chicken house is scanned once at a fixed time interval ΔT (e.g., 5 minutes) to obtain the current spectrum value W0. W0 is recorded as the percentage of the luminous flux of each band to the total luminous flux, such as the percentage of the blue light band (400-500nm) to W 0B 、Green light band (500-600nm) accounts for W 0G 、Red light band (600-700nm) accounts for W 0R ; According to the breed, growth stage and breeding purpose of chicken, the ideal spectrum is pre-set in the system, which is also given by the proportion of each band, that is, the proportion of blue light W B 、Green light ratio W G 、Red light proportion W R J2, calculate the difference of each key band, blue light band difference ΔW B =W B -W 0B , green light band difference ΔW G =W G -W0G , red light band difference ΔW R =W R -W 0R .

[0069] J3, set an adjustment coefficient i for each band to determine the adjustment amplitude. The adjustment amplitude A of the blue light band B =i×ΔW B , green light band adjustment amplitude A G =i×ΔW G , red light band adjustment amplitude A R =i×ΔW R The adjustment coefficient i ranges from 0 to 1. Its function is to avoid excessive one-time adjustment and prevent sudden changes in light from causing stress to the chickens. The adjustment coefficient i is an adjustable value, and each adjustment is ±0.1.

[0070] Example 2

[0071] S1, Model construction

[0072] S1A Data collection and preprocessing:

[0073] A1, install light intensity sensors, spectrum sensors, temperature sensors, humidity sensors, etc. at different locations in the chicken house, collect data every 1-5 minutes, including light intensity values, values ​​of each spectrum band, temperature values, humidity values, etc., and record the corresponding timestamps. At the same time, collect geographical information such as the latitude and longitude, altitude, and other geographical information of the chicken house, as well as local data such as annual sunshine hours and weather changes34.

[0074] A2, record the breed, age, number, weight, health status, egg production and other information of the chickens, as well as the daily behavior of the chickens, such as feeding time, activity time, rest time, etc.

[0075] Lighting equipment data: record in detail the model, quantity, layout location, power, luminous spectrum, dimming range and other parameters of the lighting equipment used in the chicken house.

[0076] A3, clean the collected data and remove outliers and erroneous data. For example, remove light intensity values ​​or temperature values ​​that are obviously deviated from the normal range. For missing data, methods such as mean filling and linear interpolation can be used to complete the data to ensure the integrity and accuracy of the data.

[0077] S1B model construction and calibration:

[0078] B1, the preprocessed data is divided into a training set and a validation set, and the model is trained using the training set data. By adjusting the parameters and structure of the model, the model can accurately predict the impact of light changes on the chicken house environment and chickens. Then, the model is verified and calibrated using the validation set data to evaluate the accuracy and reliability of the model. Based on the verification results, the model is further optimized and adjusted until the model reaches satisfactory performance indicators.

[0079] S2, Lighting Requirements Analysis

[0080] S2A needs analysis based on the growth stage:

[0081] A1, Brooding period: Determine the lighting requirements during the brooding period based on the chicken breed and breeding experience. Generally speaking, a higher light intensity is required during the brooding period, usually between 20-30 lux, and the lighting duration can be set to 23-24 hours to promote the chicks' feeding, drinking and activities, and help them grow and develop quickly. In terms of spectrum, the proportion of blue light can be appropriately increased to stimulate the chicks' visual development and appetite.

[0082] A2, Growing period: As the chickens grow, gradually reduce the light intensity and duration. The light intensity can be adjusted to 10-15 lux, and the light duration can be shortened to 16-18 hours to avoid premature sexual maturity of the flock, which will affect the egg-laying performance in the later period. The spectrum can be gradually adjusted to a spectral distribution close to natural light to maintain the normal physiological rhythm of the flock.

[0083] A3, Laying period: During the laying period, stable and appropriate lighting conditions are required to maintain the high production performance of laying hens. The light intensity is generally controlled at 40-50 lux, and the lighting duration is maintained at 14-16 hours. In terms of the spectrum, the proportion of red light can be increased to promote the secretion of sex hormones in laying hens, and improve the egg production rate and egg quality.

[0084] S2B demand adjustment based on environmental factors:

[0085] B1, seasonal changes: adjust the lighting of the chicken house accordingly according to the characteristics of natural lighting in different seasons. For example, in winter, the daylight hours are short and the light intensity is weak, so it is necessary to increase the duration and intensity of artificial lighting to meet the lighting needs of the chickens; in summer, the daylight hours are long and the light intensity is strong, so the duration of artificial lighting can be appropriately shortened, or shading measures can be used to reduce the light intensity to prevent the chickens from being stressed by excessive light.

[0086] B2, Weather changes: In cloudy, rainy and other weather conditions where natural light is insufficient, increase the intensity and duration of artificial light in time to ensure that there is enough light in the chicken house. On the contrary, when the light is too strong on sunny days, adjust the light intensity by adjusting the shading device or reducing the power of the lighting device.

[0087] S3, light control execution

[0088] S3A light intensity control:

[0089] A1, using an intelligent dimming system, automatically adjusts the power or brightness of the lighting equipment according to the light intensity requirements calculated by the twin digital model. When the actual light intensity is lower than the preset value, the power or brightness of the lighting equipment is increased; when the actual light intensity is higher than the preset value, the power or brightness of the lighting equipment is reduced to achieve precise control of the light intensity123. A2, the light intensity sensor monitors the light intensity in the chicken house in real time and feeds the data back to the control system. The control system continuously adjusts the working status of the lighting equipment based on the difference between the feedback data and the preset value, forming a closed-loop feedback adjustment to ensure that the light intensity is always kept within an appropriate range123.

[0090] S3B Spectral Control:

[0091] B1, choose lighting equipment with spectral adjustable function, such as multi-chip LED lamp, by changing the current or duty cycle of chips of different colors, to achieve precise adjustment of the spectrum.

[0092] B2, formulate corresponding spectrum adjustment strategies according to the spectrum requirements obtained by the twin digital model analysis. For example, increase the luminous intensity of the blue light chip during the brooding period, increase the luminous intensity of the red light chip during the egg-laying period, etc. The control system automatically adjusts the spectrum parameters of the lighting equipment according to the spectrum adjustment strategy to meet the spectrum requirements of the chickens at different growth stages and environmental conditions.

[0093] S4, real-time monitoring and model updating

[0094] S4A real-time monitoring system:

[0095] A1, through the various sensors installed in the chicken house, real-time monitoring of multi-dimensional data such as light intensity, spectrum, temperature, humidity, chicken behavior, etc., and real-time transmission of the data to the control system and data management platform34.

[0096] A2, with the video monitoring system, the status of the chickens in the chicken house is observed in real time to get a more comprehensive understanding of the behavior and health of the chickens. Through video image analysis technology, abnormal behaviors of the chickens, such as gathering, fighting, and listlessness, can be automatically identified, and problems can be discovered in time and corresponding measures can be taken4.

[0097] S4B model update and optimization

[0098] B1, integrate real-time monitoring data with historical data, and use data analysis technology to explore the potential patterns and correlations in the data. For example, analyze the correlation between light intensity, spectrum and chicken growth performance, behavioral performance, and the impact of environmental factors on lighting effects.

[0099] B2, based on the data analysis results, regularly update and optimize the twin digital model. Adjust the model's parameters, structure or algorithm to improve the model's prediction accuracy and adaptability. For example, when the chicken breed, breeding environment or lighting equipment changes, update the model in a timely manner so that it can better reflect the actual situation and provide more accurate decision support for lighting control.

[0100] Preferably, the step S1 specifically includes the following steps:

[0101] C1, data collection, accurately measure the length, width, and height of the chicken house, and record the material and thickness of the walls and roof, because these factors will affect the reflection, refraction, and absorption of light. For example, a metal roof is highly reflective and may increase local light intensity; thick earth walls will weaken light. The position, size, and orientation of doors and windows should also be marked. Natural light is an important supplement to the lighting of the chicken house, and the layout of doors and windows affects the lighting effect; internal facility layout: determine the placement and size of chicken cages, feeders, and sinks, which will block light and cause uneven lighting. Draw a 3D layout diagram of the interior of the chicken house, mark the height of each facility, and provide a physical framework for subsequent lighting simulation; lighting-related data, historical lighting records: extract at least one year of light intensity and spectrum data from the past chicken house management system, and store them according to different seasons and weather conditions. For example, the light intensity at noon on a sunny day in summer can reach 8000-10000 lux, while in winter it may be as low as 2000-3000 lux; the proportion of each band of visible light in the spectrum will also change on cloudy days. Flock data: Growth information: record the breed of the flock, the age of entering the house, the number of stocks, and track the changes in the average weight and body length of the flock at different growth stages, so as to correlate the lighting conditions with the growth effect. White-feathered broilers grow fast, and strong light is needed in the early stage to promote feeding; the length of light during the laying hen rearing period is strictly limited to prevent precocious maturity. Behavioral data: monitor the daily feeding, resting, activity time distribution and activity of the flock through cameras and infrared sensors, and analyze the behavioral preferences of chickens under different lighting environments. If the light in a certain area is weak and the flock rarely goes there to move around, it means that supplementary light is needed. Health data: collect the incidence rate and vaccination status of the flock. Some diseases are related to improper light. Excessive light or unsuitable spectrum may cause stress in the flock, reduce immunity, and increase the chance of infection.

[0102] C2, data preprocessing, remove obviously erroneous data, such as negative light intensity, or abnormal records with a total spectrum share exceeding 100%. Use statistical methods to identify and correct outliers to avoid interfering with model accuracy, standardization: normalize data of different magnitudes, such as light intensity values ​​and chicken group weight values, use Z-score standardization or Min-Max standardization to map data to a specific interval, so that all types of data have the same weight in subsequent modeling, improve the algorithm convergence speed and effect, extract key features from the original data, such as calculating the solar altitude angle and azimuth angle based on the geographical coordinates and time of the chicken house as a derivative feature of natural light; divide the age of the chicken group into stages such as brooding period, rearing period, and egg-laying period, and convert them into classification features for model differentiation.

[0103] C3, chicken house model establishment, using computer-aided design (CAD) and building information modeling (BIM) technology to create a high-precision 3D physical model of the chicken house, simulate the propagation path of light in the chicken house, and accurately present physical phenomena such as shadows and reflected light spots. Combined with the optical rendering engine, different lighting scenes are rendered according to the luminous characteristics of the lighting equipment and the optical properties of the chicken house material to obtain a "snapshot" of the lighting distribution of the virtual chicken house.

[0104] C4, train the established model and divide the data set: divide the preprocessed data into training set, validation set, and test set at a ratio of 70%, 15%, and 15%. The training set is used for model parameter learning, the validation set adjusts the model hyperparameters to prevent overfitting, and the test set evaluates the generalization performance of the model. Training process: set the loss function, such as mean square error loss for light intensity prediction error evaluation, and cross entropy loss for measuring the classification accuracy of the chicken growth stage. Use the gradient descent algorithm to iterate the model on the training set repeatedly, and adjust the weight parameters according to the feedback of the loss function until the model converges on the validation set, and indicators such as accuracy and recall meet the requirements.

[0105] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A chicken house based on AI to control natural lighting, characterized in that: It includes a main body of a chicken house, a plurality of mounting holes are arranged on the top of the main body, a light-transmitting device is arranged in the mounting holes, and there are a plurality of light-transmitting devices, which are respectively connected to the light control system signal, and a plurality of light sensors are also arranged in the main body. The light transmission device comprises a transparent lighting plate arranged on the top, a light guide tube is connected to the edge of the lighting plate, and a light diffusion device is installed at the bottom.

2. A chicken house based on Ai to control natural lighting according to claim 1, characterized in that: The light diffusion device comprises a sleeve, light homogenizing plates respectively arranged at the top and bottom of the sleeve, and an LED lamp arranged on the inner wall of the middle part of the sleeve.

3. A chicken house based on AI-controlled natural lighting according to claim 1, characterized in that: The top of the light guide tube of the light transmission device is threadedly connected to the lighting plate, and the bottom of the light guide tube is threadedly connected to the sleeve. Preferably, the light-transmitting device further comprises a beam-collecting plate arranged below the bottom of the lighting plate, the beam-collecting plate is an elliptical convex lens, and the edge of the convex lens is threadedly connected to the light guide tube.

4. The chicken house based on AI-controlled natural lighting according to claim 1, characterized in that: The lighting board is in an umbrella shape, and a plurality of concave light-collecting grooves are evenly distributed on the umbrella surface, and the light-collecting grooves are concave semicircular grooves.

5. The chicken house based on AI-controlled natural lighting according to claim 1, characterized in that: The inner wall of the light guide tube is a reflective surface, and a shading device is also arranged on one side of the inner wall of the light guide tube.

6. A method for controlling lighting in a chicken house, characterized in that: The steps include: S1, preset the light intensity of the chicken house to be K, and the light time to be T; S2, real-time detection of the light intensity K0 of the chicken house, and establishment of a table to record the light intensity K0 values ​​of each day according to time period; S3, calculate the difference between the preset light intensity K and the real-time light intensity K0, when K-K0<0, adjust the angle of the light shield in the light guide, when K-K0>1, turn on the LED light, and adjust the LED light intensity according to the difference until it reaches 0 <K-K0<1; S4, real-time detection of the light spectrum value W0 of the chicken house, and recording the light spectrum value W0 of each day according to the time period; S5, according to the changes in the growth stage of the chicken flock, uses the adjustable spectrum characteristics of LED lamps to adjust the proportion of light in different bands through control software.

7. A chicken house based on AI-controlled natural lighting according to claim 6, characterized in that: In step S3, the calculation steps are as follows: L1, set the detection interval to 5 minutes, obtain the light intensity of multiple light sensors, K0 = (k1, k2, k3, ...k n ), remove the maximum and minimum values ​​to obtain the K0 value; L2, the difference between the preset light intensity value K and the real-time detected light intensity value K0 is K-K0=ΔK; L3 When ΔK<0, the light intensity is adjusted by adjusting the angle of the sunshade. The calculation formula is: θ=α×|ΔK| L4, when ΔK>1, turn on or adjust the LED lamp power. The formula for calculating the LED lamp power is as follows: ρ=β×(ΔK-1) Where ρ is the power adjustment ratio, β is the power adjustment coefficient, V×ρ=V1, V1 is the adjusted LED lamp power, and V is the current LED lamp power.

8. The chicken house based on AI-controlled natural lighting according to claim 6, characterized in that: The step S3 also includes the following steps: C1, simulates the natural habits of chickens, presets lighting modes, including feeding mode, rest mode and activity mode, and sets the light intensity K of the above multiple modes respectively m ; C2, simulates the seasonal activity habits of chickens, set to winter, summer, autumn and spring, and set the light intensity Kv according to the above multiple seasons; C3, the light intensity value K obtained according to step L2 and step L3 m and K v , get the light intensity K suitable for the current date and time.

9. The chicken house based on AI-controlled natural lighting according to claim 7, characterized in that: In the step C3, the m and K v Get the light intensity K suitable for the current date and time, specifically: In the feeding mode, the light intensity corresponding to the feeding stage of the chickens is K m1 , determined according to the breed and age of the chicken. For example, in the early stage of brooding, the lux is usually set at 20-30 lux in order to stimulate the vision and appetite of chicks; in the fattening period of broilers, it can be adjusted to 30-50 lux; In rest mode, when the chickens enter the rest state, the corresponding light intensity is K m2 , rest requires a darker environment, set at 1-5 lux, to create a quiet atmosphere similar to night, to help chickens relax and fall asleep; Activity mode: The light intensity during the daily activity period of the chickens is set to K m3 , maintain sufficient visibility for chickens to move freely, socialize, take sand baths, etc. When laying hens are active, the value is about 40-60 lux. Broilers are more active, and the adjustment range is between 50-80 lux.

10. The chicken house based on AI-controlled natural lighting according to claim 7, characterized in that: The simulated seasonal activity habits of the chickens in step C2 are set to winter, summer, autumn and spring, as follows: Winter: In winter, the days are short and the natural light is insufficient, so additional artificial light is needed. Let the light intensity correction coefficient corresponding to winter be α1, with a value range of 1.1-1.

3. If it is winter and in active mode, the corrected light intensity K V1 =α1×K mn ; Summer: In summer, the days are long and too much light can easily cause stress in chickens. Let the light intensity correction coefficient corresponding to summer be α1, with a value range of 0.8-0.

9. For example, in summer, when K is in active mode, V2 =α2×K mn ; Spring and autumn: In spring and autumn, the daytime is moderate and the light intensity is relatively stable. The correction coefficients are set to α3 and α4, which are 0.98 and 1.02 respectively. The corresponding corrected light intensity is K V3 =α3×K mn , K V4 =α4×K mn .

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