CN114417242B - Big data detection system for livestock and poultry activity information - Google Patents
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Abstract
The invention discloses a big data detection system for livestock and poultry activity information, which consists of a cloud platform-based livestock and poultry sign parameter acquisition and intelligent prediction platform and a livestock and poultry activity big data prediction subsystem, wherein the cloud platform-based livestock and poultry sign parameter acquisition and intelligent prediction platform realizes the detection and processing of the temperature and activity information parameters of livestock and poultry signs; the livestock and poultry activity big data prediction subsystem realizes prediction of the activity state of livestock and poultry and provides data and early warning for preventing livestock and poultry diseases; the invention aims to provide a big data detection system for livestock and poultry activity information, which monitors the temperature and activity information of livestock and poultry in real time, thereby providing data and early warning for preventing livestock and poultry diseases.
Description
Technical Field
The invention relates to the technical field of detection of parameters of livestock and poultry activity information, in particular to a big data detection system of livestock and poultry activity information.
Background
As an important component in national economic industry of China, livestock and poultry breeding industry puts forward new requirements on the breeding process and breeding standards of the whole livestock and poultry breeding industry by meeting the increasingly diverse requirements of people on livestock and poultry products. In the traditional livestock and poultry breeding process, a simple, rough and low-efficiency breeding method with high-frequency manual intervention is adopted, activity information of breeding individuals cannot be obtained in time after a large amount of labor and time cost are consumed, high manual participation degree still has certain influence on physiological activities of the breeding individuals to a certain extent, the probability of cross infection diseases between people and animals is increased, and for various defects, modern breeding technology is more and more urgently needed to promote further development of breeding industry, so that the livestock and poultry breeding industry can bear new tests of the contemporary society. The invention develops a miniature wearable livestock and poultry activity physical sign sensing device, establishes a data transmission network based on a wireless network technology, develops platform software for analyzing and processing monitoring data, realizes real-time display of livestock and poultry activity data, and provides data and early warning for preventing livestock and poultry diseases.
Disclosure of Invention
The invention aims to provide a big data detection system for livestock and poultry activity information, which monitors the temperature and activity information of livestock and poultry bodies in real time, thereby providing data and early warning for preventing livestock and poultry diseases.
The invention is realized by the following technical scheme:
the big data detection system for the livestock and poultry activity information realizes detection of livestock and poultry body temperature and activity information parameters and intelligent prediction of livestock and poultry postures, and comprises a cloud platform-based livestock and poultry sign parameter acquisition and intelligent prediction platform and a livestock and poultry activity big data prediction subsystem.
The invention further adopts the technical improvement scheme that:
the livestock and poultry physical sign parameter acquisition and intelligent prediction platform based on the cloud platform is composed of a detection node, a gateway node, an on-site monitoring end, the cloud platform and a mobile phone APP, wherein the detection node acquires the body temperature and activity information parameters of livestock and poultry and uploads the body temperature and activity information parameters to the cloud platform through the gateway node, the cloud platform end stores data and releases information, the mobile phone APP can monitor the body temperature and activity parameters of the livestock and poultry in real time through the livestock and poultry body temperature and activity information parameters provided by the cloud platform, the detection node is responsible for acquiring the body temperature and activity information parameters of the livestock and poultry, and the gateway node is used for realizing the bidirectional communication among the detection node, the on-site monitoring end, the cloud platform and the mobile phone APP and realizing the acquisition and prediction of the body temperature and activity information parameters of the livestock and poultry; the structure diagram of the livestock and poultry physical sign parameter acquisition and intelligent prediction platform based on the cloud platform is shown in figure 1.
The invention further adopts the technical improvement scheme that:
the livestock and poultry activity big data prediction subsystem consists of 3 parameter detection modules, a BAM neural network model, 2 time delay line TDL, 2 ARIMA prediction models and an ART2 neural network model, a triaxial acceleration sensor ADXL362 senses the accelerations of detected livestock and poultry in the X, Y and Z axis directions respectively as the input of the corresponding parameter detection modules, 3 coupling coefficients output by the 3 parameter detection modules are used as the input of the BAM neural network model, binary coupling coefficients output by the BAM neural network model are used as the corresponding input of the ART2 neural network model, determined values and fluctuation values output by the ART2 neural network model are used as the input of the 2 time delay line TDL and the corresponding input of the ART2 neural network model, 2 time delay line TDL outputs are respectively used as the corresponding input of the 2 ARIMA prediction models, 2 ARIMA prediction model outputs are used as the corresponding input of the ART2 neural network model, the determined values and the horizontal coupling coefficients output by the ART2 neural network model are respectively formed by the c + ART2 neural network model, the determined values output by the binary coupling coefficients are respectively in different horizontal climbing states, 5 horizontal walking states and 5 walking states of the livestock and horizontal walking states; the structure diagram of the big data prediction subsystem of the livestock and poultry activity is shown in figure 2.
The invention further adopts the technical improvement scheme that:
the parameter detection module consists of an Adaline neural network model with a time-lag unit, an EMD empirical mode decomposition model, a GM (1, 1) gray prediction model, a plurality of NARX neural network prediction models, 2 beat-to-beat delay lines TDL, 2 ARIMA prediction models and a wavelet neural network model of a binary coefficient; the parameter detection sensor outputs as the input of an Adaline neural network model with a time delay unit, the Adaline neural network model with the time delay unit outputs as the input of an EMD empirical mode decomposition model, the measured parameter low-frequency trend value output by the EMD empirical mode decomposition model serves as the input of a GM (1, 1) gray prediction model, a plurality of different high-frequency fluctuation values of the measured parameter output by the EMD empirical mode decomposition model serve as the input of a plurality of corresponding NARX neural network prediction models, the GM (1, 1) gray prediction model output and the NARX neural network prediction model outputs serve as the corresponding inputs of a wavelet neural network model of a dyadic coefficient, the wavelet neural network model of the dyadic coefficient outputs a determined value a and a fluctuation value b of the measured parameter constitute a + bi of the size of the measured parameter, the determined value a and the fluctuation value b of the measured parameter serve as the corresponding inputs of a delay line TDL and 2 corresponding inputs of the wavelet neural network model of the dyadic coefficient, 2 beats output as the corresponding inputs of the ARARL prediction model of the delay line, and the input of the IMA neural network model of the measured parameter output of the binary coefficient, and the ARL correspond to the input of the binary neural network model. The structure of the parameter detection module is shown in FIG. 3.
Compared with the prior art, the invention has the following obvious advantages:
1. according to the invention, the livestock activity information sequence output by the original Adaline neural network model with the time delay unit is decomposed into components of different frequency bands through an EMD empirical mode decomposition model, and each component displays different characteristic information hidden in the original sequence. To reduce the non-stationarity of the sequence. The data relevance of the high-frequency fluctuation part of the livestock and poultry activity process is not strong, the frequency is higher, the high-frequency fluctuation part represents the fluctuation component of the original sequence, and the high-frequency fluctuation part has certain periodicity and randomness, and the periodicity and the randomness are consistent with the periodicity change of the livestock and poultry activity process; the low-frequency components represent the variation trend of the original sequence in the activity process of the livestock and poultry. Therefore, the EMD can gradually decompose fluctuation components, period components and trend components in the livestock and poultry activity process, each decomposed component contains the same deformation information, mutual interference among different characteristic information is reduced to a certain extent, and the decomposed component change curves are smoother than original livestock and poultry activity deformation sequence curves. Therefore, EMD can effectively analyze deformation data of the livestock and poultry activity process under the multi-factor combined action, and each component obtained through decomposition is output by a GM (1, 1) gray prediction model and establishment and better prediction of a plurality of NARX neural network prediction models. And finally, superposing the component prediction results to obtain a final fusion prediction result. Example researches show that the provided fusion prediction result has higher prediction precision.
2. The method adopts a GM (1, 1) grey prediction model to predict the long time span of the low-frequency trend of parameter measurement in the process of livestock activity. The GM (1, 1) grey prediction model can predict the parameter measurement low-frequency trend value at the future time according to the parameter measurement low-frequency trend value, after the parameter measurement low-frequency trend predicted by the method is measured, the parameter measurement low-frequency trend value is added into the original number series of the parameter measurement low-frequency trend respectively, a data modeling at the beginning of the number series is correspondingly removed, and then the prediction of the parameter measurement low-frequency trend is predicted. And by analogy, predicting a parameter measurement low-frequency trend value. The method is called an equal-dimensional gray number successive compensation model, and can realize long-time prediction. The method can more accurately master the variation trend of the low-frequency trend of parameter measurement, and prepares for effectively avoiding the fluctuation of the low-frequency trend of parameter measurement.
3. The method adopts an ARIMA prediction model to obey time sequence distribution based on the initial data of the determined value and the fluctuation value of parameter measurement, utilizes the principle that the determined value and the fluctuation value of the parameter measurement both have certain inertial trend, integrates the determined value and the initial time sequence variable of the fluctuation value of the parameter measurement of factors such as trend factors, periodic factors, random errors and the like, converts a non-stationary sequence into a stationary random sequence with zero mean value by methods such as differential data conversion and the like, and performs numerical value fitting and prediction on the determined value and the fluctuation value of the parameter measurement by repeatedly identifying, diagnosing and comparing with the model and selecting an ideal model. The method combines the advantages of autoregressive and moving average methods, has the characteristics of no data type constraint and strong applicability, and is a model for measuring the determined value and the fluctuation value of the short-term prediction parameters.
4. The BAM neural network with binary association coefficients is a double-layer feedback neural network, and can realize the function of different associative memory; which when an input signal is added to one of the layers, the other layer gets an output. There is no explicit input layer or output layer, since the initial mode can act on any layer of the network, and the information can also be propagated in both directions. The learning speed of the BAM neural network model is high, the convergence speed is low during BP learning, the final convergence can possibly reach a local minimum point instead of a global minimum point, and the BAM reaches an energy minimum point; the BAM neural network model is provided with a feedback network, and when an input has an error, the BAM neural network model not only can output an accurate fault reason, but also can correct the error of the original input. The BAM neural network model is suitable for systems that require correction of symptoms of erroneous inputs. The BAM neural network model improves the uncertain information processing capability of the material parameter sensor predicted value in the reasoning process by utilizing the characteristic of bidirectional association storage of the BAM neural network.
5. The invention discloses scientificity and reliability of classification of livestock and poultry activity states, and an ART2 neural network classifier with a binary joint coefficient is used for quantizing the dynamic degree of the livestock and poultry activity states into 5 different states of horizontal climbing, walking, standing, horizontal lying and lateral lying through outputting 5 different predicted values through the ART2 neural network with the binary joint coefficient according to engineering practical experience of the livestock and poultry activity states, so that the classification of the livestock and poultry activity states is realized in dynamic performance and scientific classification.
6. Aiming at the uncertainty and randomness of the problems of sensor precision error, interference, measured value abnormality and the like in the parameter measurement process, the invention converts the parameter values measured by the parameter sensor into a binary coefficient form for representation through the parameter detection module, effectively processes the ambiguity, the dynamic property and the uncertainty of the parameter measured by the parameter sensor, and improves the objectivity and the reliability of the parameter detected by the parameter sensor.
7. Aiming at the uncertainty and randomness of the problems of sensor precision error, interference, measured value abnormality and the like in the parameter measurement process, the invention converts the parameter values measured by the parameter sensor into a binary coefficient form for representation through the parameter detection module, effectively processes the ambiguity, the dynamic property and the uncertainty of the parameter measured by the parameter sensor, and improves the objectivity and the reliability of the parameter detected by the parameter sensor.
Drawings
FIG. 1 shows a cloud platform-based livestock and poultry sign parameter acquisition and intelligent prediction platform of the invention;
FIG. 2 is a big data forecasting subsystem for livestock and poultry activities according to the present invention;
FIG. 3 is a diagram of a parameter detection module according to the present invention
FIG. 4 is a functional diagram of a detection node according to the present invention;
FIG. 5 is a functional diagram of a gateway node of the present invention;
FIG. 6 is a functional diagram of the on-site monitoring software according to the present invention.
Detailed Description
The technical scheme of the invention is further described by combining the attached drawings 1-6:
1. design of overall system function
The detection system provided by the invention can be used for detecting the body temperature and activity information parameters of livestock and poultry and predicting the postures of the livestock and poultry, and comprises a cloud platform-based livestock and poultry sign parameter acquisition and intelligent prediction platform and a livestock and poultry activity big data prediction subsystem. The livestock and poultry sign parameter acquisition and intelligent prediction platform based on the cloud platform comprises detection nodes of livestock and poultry sign parameters, gateway nodes, a field monitoring terminal, the cloud platform and a mobile phone App, and communication among the detection nodes and between the detection nodes and the gateway nodes is realized through a ZiGBee technology; the detection nodes send the detected livestock body temperature and activity parameters to the field monitoring end and the cloud platform through the gateway nodes, and bidirectional transmission of the livestock body temperature and activity information parameters is realized among the gateway nodes, the cloud platform, the field monitoring end and the mobile phone App. The cloud platform based livestock and poultry sign parameter acquisition and intelligent prediction platform is shown in figure 1.
2. Design of detection node
A large number of detection nodes of the CC 2530-based self-organizing communication network are used as sensing terminals of the temperature and activity information parameter of the livestock, and the detection nodes realize mutual information interaction with gateway nodes through the self-organizing communication network. The detection node comprises a sensor for acquiring temperature and activity information parameters of livestock and poultry, a corresponding signal conditioning circuit, an STM32 singlechip and a CC2530 module; the software of the detection node mainly realizes the self-organizing network communication and the acquisition and the pretreatment of the temperature and activity information parameter parameters of the livestock and poultry. The software is designed by adopting a C language program, the compatibility degree is high, the working efficiency of software design and development is greatly improved, the reliability, readability and transportability of program codes are enhanced, and the structure of the detection node is shown in figure 4.
3. Gateway node design
The gateway node comprises a CC2530 module, an NB-IoT module, an STM32 single chip microcomputer and an RS232 interface, the gateway node is communicated with the detection node through the CC2530 module, the NB-IoT module is used for achieving data bidirectional interaction between the gateway and the cloud platform, and the RS232 interface is connected with the field monitoring end to achieve information interaction between the gateway and the field monitoring end. The gateway node structure is shown in figure 5.
4. Software design of field monitoring terminal
The on-site monitoring end is an industrial control computer, the on-site monitoring end mainly collects the body temperature and activity information parameters of livestock and poultry and predicts the postures of the livestock and poultry, information interaction with the detection nodes is realized through gateway nodes, the on-site monitoring end mainly has the functions of communication parameter setting, data analysis and data management and intelligent prediction of the postures of the livestock and poultry through a livestock and poultry activity big data prediction subsystem, microsoft Visual + +6.0 is selected as a development tool by the management software, a communication program is designed by calling an Mscomm communication control of the system, and the software function of the on-site monitoring end is shown in figure 6. The structure of the big data prediction subsystem of the livestock and poultry activities is shown in figure 2. The big data prediction subsystem of livestock and poultry activity is composed of 3 parameter detection modules, a BAM neural network model, 2 TDL (time delay line) according to beat, 2 ARIMA prediction models and an ART2 neural network model, the functional diagram of the big data prediction subsystem of livestock and poultry activity is shown in figure 2, and the design process is as follows:
1. design of parameter detection module
The triaxial acceleration sensor ADXL362 senses the accelerations of the detected livestock and poultry in the X, Y and Z axis directions respectively as the input of the corresponding parameter detection modules, 3 coupling coefficients output by the 3 parameter detection modules are used as the input of the BAM neural network model, and the output of the BAM neural network model is used as the corresponding input of the ART2 neural network model; the parameter detection module consists of an Adaline neural network model with a time-lag unit, an EMD empirical mode decomposition model, a GM (1, 1) gray prediction model, a plurality of NARX neural network prediction models, 2 beat-to-beat delay lines TDL, 2 ARIMA prediction models and a wavelet neural network model of a binary coefficient; the functional diagram of the parameter detection module is shown in FIG. 3;
(1) Adaline neural network model design with time delay unit
The output of the parameter sensor is used as the input of an Adaline neural network model with a time delay unit, and the output of the Adaline neural network model with the time delay unit is used as the input of an EMD empirical mode decomposition model; the Adaline neural network model with the time delay unit consists of 2 beat delay lines TDL and Adaline neural networks, the output of a parameter sensor is used as the input of the corresponding beat delay line TDL, the output of the beat delay line TDL is used as the input of the Adaline neural network, the output of the Adaline neural network is used as the input of the corresponding beat delay line TDL, and the output of the beat delay line TDL is the output of the Adaline neural network model with the time delay unit; the Adaptive Linear Element (Adaptive Linear Element) of the Adaline neural network model is one of the early neural network models, and the input signal of the model can be written in the form of vector, X (K) = [ X = [ ] 0 (K),x 1 (K),…x n (K)] T Each set of input signals corresponds to a set of weight vectors expressed as W (K) = [ K = 0 (K),k 1 (K),…k(K)]，x 0 (K) When the bias value of the Adaline neural network model is equal to minus 1, the excitation or inhibition state of the neuron is determined, and the network output can be defined as follows according to the input vector and the weight vector of the Adaline neural network model:
in the Adaline neural network model, a special input, namely an ideal response output d (K), is sent into the Adaline neural network model, then the output y (K) of the network is compared, the difference value is sent to a learning algorithm mechanism to adjust the weight vector until the optimal weight vector is obtained, the y (K) and the d (K) tend to be consistent, the adjusting process of the weight vector is the learning process of the network, the learning algorithm is a core part of the learning process, and the weight optimization searching algorithm of the Adaline neural network model adopts a least square method of an LMS algorithm.
(2) EMD empirical mode decomposition model design
The output of the parameter sensor is used as the input of an Adaline neural network model with a time delay unit, the output of the Adaline neural network model with the time delay unit is used as the input of an EMD empirical mode decomposition model, the measured low-frequency trend value of the parameters output by the EMD empirical mode decomposition model is used as the input of a GM (1, 1) gray prediction model, the measured high-frequency fluctuation values of a plurality of parameters output by the EMD empirical mode decomposition model are respectively used as the input of a plurality of corresponding NARX neural network prediction models, and the EMD empirical mode decomposition is an adaptive signal screening method and has the characteristics of simplicity and intuition in calculation, and based on experience and self adaptation. It can screen the trends of different characteristics existing in the parameter measurement signal step by step to obtain a plurality of high frequency fluctuation parts (IMF) and low frequency trend parts. The IMF component decomposed by EMD empirical mode contains components of different frequency bands of parameter measurement signals from high to low, and the frequency resolution contained in each frequency band changes along with the signals, so that the self-adaptive multi-resolution analysis characteristic is realized. The purpose of using EMD empirical mode decomposition is to extract parameter measurement information more accurately. The IMF component must satisfy two conditions simultaneously: (1) in the parameter measurement signal to be decomposed, the number of the extreme points is equal to the number of the zero-crossing points, or the difference is at most one; (2) at any one time, the envelope mean defined by the local maxima and the local minima is zero. The EMD empirical mode decomposition method aims at the screening process steps of the Adaline neural network model output value signals with the time delay units as follows:
(a) All local extreme points of the output value signals of the Adaline neural network model with the time delay unit are connected by three sample lines to form an upper envelope line.
(b) Local minimum value points of Adaline neural network model output values with time delay units are connected by three spline lines to form a lower envelope line, and the upper envelope line and the lower envelope line should envelop all data points.
(c) The average of the upper and lower envelope lines is denoted as m 1 (t), obtaining:
x(t)-m 1 (t)＝h 1 (t) (2)
x (t) is an Adaline neural network model output value original signal with a time lag unit, if h 1 (t) is an IMF, then h 1 (t) is the first IMF component of x (t). Note c 1 (t)＝h 1k (t), then c 1 (t) is the first component of the signal x (t) that satisfies the IMF condition.
(d) C is to 1 (t) separating from x (t) to obtain:
r 1 (t)＝x(t)-c 1 (t) (3)
will r is 1 (t) repeating steps (a) to (c) as raw data to obtain the 2 nd component c satisfying IMF condition of x (t) 2 . The cycle is repeated n times to obtain n components of the signal x (t) satisfying the IMF condition. Thus, the output of the Adaline neural network model with the time-lag unit is decomposed into a low-frequency trend part and a plurality of high-frequency fluctuation parts through an EMD empirical mode decomposition model, and the EMD empirical mode decomposition model is shown in figure 2.
(3) GM (1, 1) Gray prediction model design
The parameter measurement low-frequency trend value output by the EMD empirical mode decomposition model is used as the input of a GM (1, 1) gray prediction model, a plurality of parameter measurement high-frequency fluctuation values output by the EMD empirical mode decomposition model are respectively used as the input of a plurality of corresponding NARX neural network prediction models, and the GM (1, 1) gray prediction model output and a plurality of NARX neural network prediction model outputs are respectively used as the corresponding inputs of a wavelet neural network model of a binary coefficient; compared with the traditional statistical prediction method, the GM (1, 1) gray prediction method has more advantages that whether the prediction variable obeys normal distribution or not is not required to be determined, large sample statistics is not required, the prediction model is not required to be changed at any time according to the change of the parameter measurement low-frequency trend value input variable, a uniform differential equation model is established through an accumulation generation technology, the accumulation parameter measurement low-frequency trend original value is restored to obtain a prediction result, and the differential equation model has higher prediction precision. The essence of establishing a GM (1, 1) gray prediction model is that the low-frequency trend value original data is subjected to once accumulation generation, so that a generated sequence presents a certain rule, and a fitted curve is obtained by establishing a differential equation model so as to predict the parameter measurement low-frequency trend value.
(4) NARX neural network prediction model design
The parameter measurement low-frequency trend value output by the EMD empirical mode decomposition model is used as the input of a GM (1, 1) gray prediction model, a plurality of parameter measurement high-frequency fluctuation values output by the EMD empirical mode decomposition model are respectively used as the input of a plurality of corresponding NARX neural network prediction models, and the GM (1, 1) gray prediction model output and the NARX neural network prediction model outputs are respectively used as the corresponding input of a wavelet neural network model of a binary coefficient; the NARX neural network prediction model is a dynamic recurrent neural network with output feedback connection, can be equivalent to a BP neural network with input time delay on a topological connection relation and is added with time delay feedback connection from output to input, and the structure of the NARX neural network prediction model is composed of an input layer, a time delay layer, a hidden layer and an output layer, wherein an input layer node is used for signal input, a time delay layer node is used for time delay of input signals and output feedback signals, the hidden layer node uses an activation function to perform nonlinear operation on the delayed signals, and an output layer node is used for performing linear weighting on hidden layer output to obtain final network output. No. i hidden layer of NARX neural network prediction modelOutput h of the node i Comprises the following steps:
output o of jth output layer node of NARX neural network j Comprises the following steps:
the input layer, the time delay layer, the hidden layer and the output layer of the NARX neural network are respectively 2-19-10-1 nodes.
(5) ARIMA prediction model design
The parameter measurement determination value a and fluctuation value b of wavelet neural network output of the binary coefficient are respectively used as the input of corresponding beat delay line TDL, 2 outputs of beat delay line TDL are respectively used as the input of corresponding ARIMA prediction models, 2 outputs of ARIMA prediction models are respectively used as the corresponding input of wavelet neural network models of the binary coefficient, the ARIMA (automatic Integrated Moving Average) prediction model is an Autoregressive integral sliding Average model, and the Autoregressive model (AR) and the sliding Average model (Moving Average, MA) are organically combined to form a comprehensive prediction method. As one of effective modern data processing methods, the method is known as the most complex and highest-level model in a time sequence prediction method, in practical application, because an input original data sequence often shows a certain trend or cycle characteristic, the requirement of an ARMA model on the stationarity of a time sequence is not met, and taking difference is a convenient and effective method for eliminating data trend. A model established based on the differentiated data sequence is called an ARIMA model and is marked as { Xt } -ARIMA (p, d, q), wherein p and q are called orders of the model, and d represents the difference times. Obviously, when d is 0, the ARIMA model is an ARMA model, which is defined as:
x t ＝b 1 x t-1 +…+b p x t-p +ε t +a 1 ε t-1 +…+a q ε t-q (6)
{x t data sequence of a determined value a and a fluctuating value b for the measurement of parameters of the wavelet neural network output for dyadic coefficients to be predicted, { epsilon } t }～WN(0,σ 2 ). The ARIMA model building mainly comprises model identification, parameter estimation and model diagnosis. The model identification mainly comprises the preprocessing of a time sequence and the preliminary order determination of model parameters; after the order of the model is fixed, unknown parameters in the model are estimated by observing values through a time sequence and combining the values of p, d and q; the diagnosis of the model is mainly a significance test for the whole model and a significance test for parameters in the model. Generally, the establishment of the model is a continuous optimization process, and the model optimization is commonly used by AIC and BIC criteria, namely the smaller the value of the minimum information criterion is, the more suitable the model is, and the BIC criteria is an improvement on the deficiency of the AIC criterion on a large sample sequence. The time series can be fitted with an ARIMA (p, d, q) model the ARIMA (p, d, q) modeling steps are as follows:
A. and obtaining a parameter measurement determination value a and a fluctuation value b sequence output by the wavelet neural network of the binary coefficient.
B. And judging the stationarity of the sequence, if the sequence is not stationary, performing data preprocessing and differential operation on the data to stabilize the sequence, and determining the value of the differential order d.
C. When the post-differential sequence is a stationary non-white noise sequence, we can select an ARMA (p, q) model of the appropriate order to model the sequence.
D. And estimating unknown parameters in the model according to the identified model and the order thereof.
E. And (5) testing the residual sequence, and testing whether the preliminary model is effective by using a statistical test method.
F. And predicting the future development trend of the smoothed time series by using the obtained fitting model.
(6) Wavelet neural network model design of binary combined coefficient
The binary coefficient formed by the definite value a and the fluctuation value b of the wavelet neural network model output parameter measured value of the binary coefficient is a + bi, and the definite value a and the fluctuation value of the parameter measured valueb are respectively used as the input of a corresponding beat-to-beat delay line TDL and 2 corresponding inputs of a wavelet neural network model of a binary coefficient, 2 outputs of the beat-to-beat delay line TDL are respectively used as the input of a corresponding ARIMA prediction model, 2 outputs of the ARIMA prediction model are respectively used as the corresponding inputs of the wavelet neural network model of the binary coefficient, and the wavelet neural network model of the binary coefficient outputs a binary coefficient value of a parameter to be detected, which is output by a parameter detection module; the structure of the parameter detection module is shown in fig. 2. The Wavelet Neural network model WNN (Wavelet Neural Networks) is a feed-forward type network proposed by combining an artificial Neural network on the basis of a Wavelet theory. The method takes a wavelet function as an excitation function of a neuron, and the expansion, translation factors and connection weights of the wavelet are adaptively adjusted in the optimization process of an error energy function. An input signal of the wavelet neural network model can be represented as an input one-dimensional vector x i (i =1,2, \8230;, n), the output signal is denoted y k (k =1,2, \8230;, m), the calculation formula of the wavelet neural network model output layer output value is:
in the formula omega ij Inputting the connection weight between the i node of the layer and the j node of the hidden layer,
as wavelet basis functions, b j Is a shift factor of the wavelet basis function, a j Scale factor, omega, of wavelet basis functions jk The connection weight between the node of the hidden layer j and the node of the output layer k. The correction algorithm of the weight and the threshold of the wavelet neural network model in the patent adopts a gradient correction method to update the network weight and the wavelet basis function parameters, so that the output of the wavelet neural network continuously approaches to the expected output. The output of the wavelet neural network model is a dynamic binary coefficient representing the value of a parameter measuring sensor in a period of time, the dynamic binary coefficient is a + bi, and the a + bi forms the dynamic binary coefficient value of the measured parameter output by the parameter measuring sensor in a period of time。
2. BAM neural network model design
3 joint coefficients output by the 3 parameter detection modules are used as the input of the BAM neural network model, and binary joint coefficients output by the BAM neural network model are used as the corresponding input of the ART2 neural network model; in the BAM neural network model topological structure, the initial mode of the network input end is x (t), and the initial mode is obtained by a weight matrix W 1 Weighted and then reaches the y end of the output end and passes through the transfer characteristic f of the output node y Non-linear transformation of (1) and (W) 2 The matrix is weighted and returns to the input end x, and then the transfer characteristic f of the output node at the x end is passed x The nonlinear transformation of the BAM neural network model is changed into the output of the input terminal x, and the operation process is repeated, so that the state transition equation of the BAM neural network model is shown in an equation (8).
The output of the BAM neural network model is a dynamic binary coefficient representing the activity state of the livestock and poultry in a period of time, the dynamic binary coefficient is a + bi, and the a + bi forms a binary coefficient value of the activity state of the livestock and poultry in a period of time.
3. Design of ARIMA prediction model
The determined value and the fluctuation value output by the ART2 neural network model are used as the input of 2 beat-to-beat delay lines TDL and the corresponding input of the ART2 neural network model, the output of the 2 beat-to-beat delay lines TDL is respectively used as the input of corresponding 2 ARIMA prediction models, and the output of the 2 ARIMA prediction models is used as the corresponding input of the ART2 neural network model; the ARIMA prediction model design method refers to the ARIMA prediction model design process and method of the parameter detection module.
4. Design of ART2 neural network model
The binary joint coefficient output by the BAM neural network model is used as the corresponding input of the ART2 neural network model, the determined value and the fluctuation value output by the ART2 neural network model are used as the input of 2 beat-to-beat delay lines TDL and the corresponding input of the ART2 neural network model, the 2 beat-to-beat delay line TDL outputs are respectively used as the corresponding 2 ARIMA prediction models for input, the 2 ARIMA prediction models are output as the corresponding input of the ART2 neural network model, the determined value and the fluctuation value output by the ART2 neural network model form the binary joint coefficient, and 5 different binary joint coefficients respectively correspond to 5 different states of livestock and poultry in horizontal climbing, walking, standing, horizontal lying and lateral lying; the ART2 neural network model structure comprises an F1 attention subsystem and an F2 orientation subsystem, wherein the F1 layer is divided into an upper layer,
The middle layer and the lower layer form two closed positive feedback loops respectively to realize the functions of feature enhancement and noise suppression; the short-term memory STM of the M-dimensional state vector representation network is formed by M neurons which are formed by long-term and short-term memory F1 and F2; the inner and outer star connection weight vectors of the F1 and the F2 form the self-adaptive long-term memory LTM of the network; the network comprises two functional neurons represented by hollow and solid, wherein the hollow neuron represents the superposition of input stimuli, and the solid neuron represents the mode of an input vector. The ART2 neural network model outputs a determined value c and a fluctuation value d which form a binary coefficient of c + di, and 5 different binary coefficients respectively correspond to 5 different states of the livestock and poultry in the states of horizontal climbing, walking, standing, horizontal lying and lateral lying. The corresponding relation between the binary coefficient output by the ART2 neural network model and the livestock and poultry states is shown in table 1.
TABLE 1 Table of the corresponding relationship between different binary coefficients and the status of the livestock and poultry
5. Livestock and poultry sign parameter acquisition and intelligent prediction platform design based on cloud platform
The system comprises detection nodes of livestock and poultry physical sign parameters, gateway nodes, an on-site monitoring terminal, a cloud platform and a mobile phone App, wherein communication among the detection nodes and between the detection nodes and the gateway nodes is realized through a ZiGBee technology; the detection nodes send the detected livestock body temperature and activity parameters to the field monitoring end and the cloud platform through the gateway nodes, and bidirectional transmission of the livestock body temperature and activity information parameters is realized among the gateway nodes, the cloud platform, the field monitoring end and the mobile phone App; according to the distribution situation of beasts and birds parameter, adopt the wearing mode to detect the node and dress at the beasts and birds body surface, gateway node and on-the-spot monitoring end are laid at beasts and birds plant, and wherein detect the node and realize monitoring and the intelligent prediction of beasts and birds gesture to beasts and birds activity information, through this system.
The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features. It should be noted that it would be apparent to those skilled in the art that several modifications and adaptations can be made without departing from the principles of the invention and are intended to be within the scope of the invention.
Claims (1)
1. Big data detection system of beasts and birds activity information, its characterized in that: the detection system comprises a cloud platform-based livestock and poultry sign parameter acquisition and intelligent prediction platform and a livestock and poultry activity big data prediction subsystem, and the cloud platform-based livestock and poultry sign parameter acquisition and intelligent prediction platform realizes the detection and processing of the temperature and activity information parameters of livestock and poultry signs; the livestock and poultry activity big data prediction subsystem realizes prediction of the activity state of livestock and poultry and provides data and early warning for preventing livestock and poultry diseases;
the livestock and poultry activity big data prediction subsystem comprises a parameter detection module, a BAM neural network model, a time delay line TDL, an ARIMA prediction model and an ART2 neural network model, wherein a triaxial acceleration sensor senses the acceleration of the detected livestock and poultry in the X, Y and Z axis directions respectively as the input of the corresponding parameter detection module, 3 coupling coefficients output by the 3 parameter detection modules are used as the input of the BAM neural network model, a binary coupling coefficient output by the BAM neural network model is used as the corresponding input of the ART2 neural network model, a determined value and a fluctuation value output by the ART2 neural network model are used as the corresponding input of the time delay line TDL and the corresponding input of the ART2 neural network model, the TDL output by the time delay line is respectively used as the corresponding input of the ARIMA prediction model, the ARIMA prediction model output is used as the corresponding input of the ART2 neural network model, a determined value c and a fluctuation value d output by the ART2 neural network model form a binary coupling coefficient of c + di, and the binary coupling coefficients output by the ART2 neural network model are respectively in different states;
the parameter detection module consists of an Adaline neural network model with a time-lag unit, an EMD empirical mode decomposition model, a GM (1, 1) grey prediction model, a NARX neural network prediction model, a TDL (delay line by beat), an ARIMA prediction model and a wavelet neural network model of a binary coefficient;
the parameter detection sensor outputs an Adaline neural network model with a time delay unit as an input of an EMD (empirical mode decomposition) model, a measured parameter low-frequency trend value output by the EMD model is input of a GM (1, 1) gray prediction model, a plurality of different high-frequency fluctuation values of the measured parameter output by the EMD model are respectively input of a plurality of corresponding NARX neural network prediction models, the GM (1, 1) gray prediction model output and a plurality of NARX neural network prediction model outputs are respectively corresponding inputs of a wavelet neural network model of a binary coefficient, the wavelet neural network model of the binary coefficient outputs a determined value a and a fluctuation value b of the measured parameter to form a binary coefficient a + bi of the size of the measured parameter, the determined value a and the fluctuation value b of the measured parameter are respectively corresponding inputs of the wavelet neural network model of the binary coefficient and a corresponding inputs of the wavelet neural network model of the binary coefficient according to the delay line TDL, the determined value a and the fluctuation value b of the measured parameter are respectively output as corresponding inputs of a corresponding ARIMA prediction model of the ARIMA, and the wavelet neural network model outputs as a corresponding predicted value of the binary coefficient;
the different states comprise horizontal climbing, walking, standing, horizontal lying and lateral lying;
the cloud platform based livestock and poultry sign parameter acquisition and intelligent prediction platform comprises a detection node, a gateway node, a field monitoring terminal, a cloud platform and a mobile phone APP;
the detection node acquires the body temperature and activity information parameters of livestock and poultry and uploads the body temperature and activity information parameters to the cloud platform through the gateway node, data and release information are stored at the cloud platform end, the mobile phone APP monitors the body temperature and activity information of the livestock and poultry in real time through the body temperature and activity information provided by the cloud platform, the detection node is responsible for acquiring the body temperature and activity information parameters of the livestock and poultry, bidirectional communication among the detection node, the field monitoring end, the cloud platform and the mobile phone APP is realized through the gateway node, and acquisition and prediction of the body temperature and activity information parameters of the livestock and poultry are realized; the triaxial acceleration sensor is model number ADXL362.
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