CN108596405A - The prediction technique and system of grey library yield - Google Patents

The prediction technique and system of grey library yield Download PDF

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CN108596405A
CN108596405A CN201810440144.7A CN201810440144A CN108596405A CN 108596405 A CN108596405 A CN 108596405A CN 201810440144 A CN201810440144 A CN 201810440144A CN 108596405 A CN108596405 A CN 108596405A
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prediction
predicted
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grey library
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CN108596405B (en
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张国锋
刘慧根
许鸿飞
戴晓瑞
周诚
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Clp Electric Logistics Co Ltd
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Abstract

The prediction meanss and method of a kind of ash library yield, including:First prediction module determines the first prediction result according to the historical information of grey library yield and grey library production information to be predicted;Second prediction module builds a neural network prediction model, according to historical information and grey library production information to be predicted, determines the second prediction result;First prediction result and the second prediction result are carried out convergent operation by computing module, determine the final prediction result of grey library production information to be predicted;Update module replaces second prediction result, to update the neural network prediction model using the final prediction result.Historical information and to be predicted grey library production information of the present invention according to grey library yield, determine the first prediction result, neural network prediction model is applied in the prediction of grey library yield again, determine the second prediction result, most latter two prediction result carries out convergent, constantly update neural network prediction model simultaneously so that final prediction result is more accurate.

Description

The prediction technique and system of grey library yield
Technical field
The present invention relates to neural network and power generation byproduct field more particularly to a kind of grey library yield based on neural network Prediction technique and system.
Background technology
Currently, the conventional model in prediction technique uses regression analysis model (Quantitative Analysis Model).Wherein mathematical statistics The attention of related field is constantly subjected to as a kind of effective knowledge discovering technologies, it is important one of the pillar of Knowledge Discovery. Among these there are many regular method between variable of finding, and regression analysis is a kind of with very extensive statistical analysis side Method has very extensive purposes in Knowledge Discovery.
So-called regression analysis is exactly to be established using mathematical statistics method because becoming on the basis of grasping a large amount of observation data Regression relation function expression (being known as regression equation) between amount and independent variable.
In practical problem, often there is such situation, although there is certain relationship between variable Y and variable X, this relationship Different from common functional relation, the value of variable Y cannot be determined by the value of X completely.That is, the relationship between variable can To be divided into deterministic relationship and uncertainty relationship.For the variable of correlativity, although specific between cannot obtaining variable Accurate function expression, but by largely observing data, using statistical method, it can be found that existing between them Certain statistical regularity.When X obtains any probable value, Y correspondingly obeys certain probability distribution.
Invention content
(1) technical problems to be solved
The purpose of the present invention is to provide a kind of prediction meanss and method of grey library yield, to solve at least one above-mentioned Technical problem.
(2) technical solution
An aspect of of the present present invention provides a kind of prediction meanss of grey library yield, including:
First prediction module, for the historical information and ash library to be predicted production information according to grey library yield, determination waits for pre- Survey the first prediction result of grey library production information;
Second prediction module, for building a neural network prediction model, and according to the historical information and ash to be predicted Library production information determines the second prediction result of the grey library production information to be predicted;
Computing module, for first prediction result and second prediction result to be carried out convergent operation, determining should The final prediction result of ash library to be predicted production information;And
Update module replaces second prediction result, to update the neural network using the final prediction result Prediction model.
In some embodiments of the invention, the historical information of the grey library yield includes at least following history parameters:It goes through History exports blower pressure, history generation schedule, history generated energy, history coal card numerical value, history coal sulfur-bearing numerical value and/or goes through History coal moisture content;
The grey library production information to be predicted includes at least following parameter:Export blower pressure, generation schedule, generated energy, Coal card numerical value, coal sulfur-bearing numerical value and/or coal moisture content.
In some embodiments of the invention, second prediction module includes:
Method determination unit, the prediction technique for determining the grey library production information to be predicted;And
Pattern determining unit, for according to the prediction technique and historical information, combination processing sale pattern to determine Second prediction result, the processing sale pattern include pattern, the free roping pattern undersold, and unit price sale mould Formula.
In some embodiments of the invention, the method determination unit includes:
Judging unit, for judging that the parameter whether there is successively, if each parameter in the presence of if judging result Aa be 1, Judging result Aa is -1 if being not present, and the judging result Aa is denoted as to six input neuron Xa of neural network model Threshold values, 1≤a≤6;
Converting unit, for the prediction technique is denoted as two intrerneurons Xb, 7≤b of neural network model≤ 8;
Determination unit determines the threshold values Fb, each defeated of each intrerneuron for the historical information according to the grey library yield Enter the weights Wab between neuron and the intrerneuron, wherein the value of Fb is 0 and ± 1;And
Selecting unit, the weighted sum for determining each intrerneuronAnd according to Pb Value, select prediction technique:If Pb is more than 1, historical forecast analytic approach is selected;If Pb is less than 1, average price is selected to predict Method;If Pb is equal to 1, convergence analysis method is selected.
In some embodiments of the invention, the first prediction module includes:
Database, the historical information of the grey library yield for storing extraneous input;
Query unit, for inquire extraneous input grey library production information to be predicted and historical information in the database it Between matching result;
Predicting unit, for according to the matching result, combining environmental factor determines the of grey library production information to be predicted One prediction result.
In some embodiments of the invention, the convergent operation of the arithmetic element is the arithmetic element to described first Prediction result seeks arithmetic mean of instantaneous value with second prediction result.
Another aspect of the present invention additionally provides a kind of prediction technique of grey library yield, is applied to any description above Device, this method include:
According to the historical information of grey library yield and grey library production information to be predicted, the of grey library production information to be predicted is determined One prediction result;
A neural network prediction model is built, and according to the historical information and grey library production information to be predicted, determining should Second prediction result of ash library to be predicted production information;
First prediction result and second prediction result are subjected to convergent operation, determine the grey library yield to be predicted The final prediction result of information;And
Second prediction result is replaced using the final prediction result, to update the neural network prediction model.
In some embodiments of the invention, the historical information of the grey library yield includes at least following history parameters:It goes through History exports blower pressure, history generation schedule, history generated energy, history coal card numerical value, history coal sulfur-bearing numerical value and/or goes through History coal moisture content;The grey library production information to be predicted includes at least following parameter:Export blower pressure, generation schedule, hair Electricity, coal card numerical value, coal sulfur-bearing numerical value and/or coal moisture content.
In some embodiments of the invention, the second prediction result of the grey library production information to be predicted, including step are determined Suddenly:
Determine the prediction technique of the grey library production information to be predicted;And
According to the prediction technique and historical information, combination processing sale pattern determines the second prediction result, described Processing sale pattern includes pattern of underselling, free roping pattern and monovalent sale pattern.
In some embodiments of the invention, the prediction technique of the grey library production information to be predicted, including step are determined:
Judge that the parameter whether there is successively, is 1 if the judging result Aa of each parameter in the presence of if, judges if being not present As a result Aa is -1, and the judging result Aa is denoted as to the threshold values of six of neural network model input neuron Xa, 1≤a≤ 6;
The prediction technique is denoted as to two intrerneuron Xb of neural network model, 7≤b≤8;
According to the historical information of the grey library yield, the threshold values Fb, each input neuron and institute of each intrerneuron are determined State the weights Wab between intrerneuron, wherein the value of Fb is 0 and ± 1;And
Determine the weighted sum of each intrerneuronAnd according to the value of Pb, selection is pre- Survey method:If Pb is more than 1, historical forecast analytic approach is selected;If Pb is less than 1, average price predicted method is selected;If Pb is equal to 1, Select convergence analysis method.
In some embodiments of the invention, the first prediction result of grey library production information to be predicted, including step are determined:
Establish the database of the historical information of the grey library yield for storing extraneous input;
Matching result in the grey library production information to be predicted and the database of the extraneous input of inquiry between historical information; And
According to the matching result, combining environmental factor determines the first prediction result of grey library production information to be predicted.
In some embodiments of the invention, the historical forecast analytic approach includes step:The database is inquired, with institute Parameter comparison is stated, the history parameters in database have at least five kinds of identical parameter informations with the parameter at this time, using institute State the corresponding price of history parameters;
The average price predicted method includes step:The database is inquired, and the parameter comparison, going through in database at this time There are four kinds of identical parameter informations with the parameter for history parameter, are started to the average price of current time using of that month No. 1;
The convergence analysis method includes step:The database is inquired, and the parameter comparison, going through in database at this time At most there are three kinds of identical parameter informations with the parameter for history parameter, judge becoming when the historical data information in the last week Gesture is set price.
In some embodiments of the invention, the first prediction result and second prediction result are subjected to convergent operation, Specially:Calculate the arithmetic mean of instantaneous value of first prediction result and second prediction result.
(3) advantageous effect
The prediction meanss and method of the grey library yield of the present invention have at least the following advantages compared to the prior art:
1, according to the historical information of grey library yield and grey library production information to be predicted, the first prediction result is determined, then will be refreshing It is applied to through Network Prediction Model in the prediction of grey library yield, determines that the second prediction result, most latter two prediction result become Together, more accurately final prediction result is obtained, while the neural network prediction model can also be constantly updated so that final prediction As a result more precisely.
2, compared with traditional regression analysis model, when being analyzed without limiting model, especially when data variable is deposited It can be checked automatically in interaction, enhance real-time.
3, relating to parameters of the neural network model with input information itself, and these parameters are calculated by using study Method is trained neural network model, therefore the present invention is with stronger adaptive inferential.
4, the present invention also in the prediction model of grey library yield by select prediction technique, in conjunction with processing sale mould Formula and the first prediction result obtain the final prediction result of grey library production information to be predicted, have given full play to neural network model Calculation features, while also enhancing the accuracy of final prediction result.
Description of the drawings
Fig. 1 is the structural schematic diagram of the prediction meanss of the grey library yield of the embodiment of the present invention.
Fig. 2 is the module diagram of the first prediction module of the embodiment of the present invention.
Fig. 3 is the module diagram of the second prediction module of the embodiment of the present invention.
Fig. 4 is the module diagram of the method determination unit of the embodiment of the present invention.
Fig. 5 is the schematic diagram of the neural network prediction model of the embodiment of the present invention.
Fig. 6 is the step schematic diagram of the prediction technique of the grey library yield of the embodiment of the present invention.
Fig. 7 is the sub-step signal of the first prediction result of the determination of the embodiment of the present invention grey library production information to be predicted Figure.
Fig. 8 is the specific steps signal of the prediction result of the determination of the embodiment of the present invention grey library production information to be predicted Figure.
Fig. 9 is the sub-step schematic diagram of the step S21 of the embodiment of the present invention.
Specific implementation mode
In the prior art, the conventional model in prediction technique uses regression analysis model (Quantitative Analysis Model), needs certainly It is dynamic to limit model, and when data variable when interaction there are being difficult to check automatically, in view of this, the present invention provides one kind The prediction meanss and method of grey library yield determine first according to the historical information of grey library yield and grey library production information to be predicted Prediction result, then neural network prediction model is applied in the prediction of grey library yield, determines the second prediction result, most latter two Prediction result carries out convergent, obtains more accurately final prediction result, while can also constantly update the neural network prediction mould Type so that final prediction result is more accurate.
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference Attached drawing, the present invention is described in more detail.
The one side of the embodiment of the present invention provides a kind of prediction meanss of grey library yield, and Fig. 1 is the embodiment of the present invention The structural representation of the prediction meanss of grey library yield, as shown in Figure 1, the prediction meanss may include:
First prediction module 1 determines ash to be predicted according to the historical information of grey library yield and grey library production information to be predicted First prediction result of library production information;
Second prediction module 2, for building a neural network prediction model, and according to the historical information and ash to be predicted Library production information determines the second prediction result of the grey library production information to be predicted;
Computing module 3, for first prediction result and second prediction result to be carried out convergent operation, determining should The final prediction result of ash library to be predicted production information;And
Update module 4, for replacing second prediction result using the final prediction result, to described in update Neural network prediction model.
In general, the historical information of the grey library yield includes at least following history parameters:History outlet blower pressure, History generation schedule, history generated energy, history coal card numerical value, history coal sulfur-bearing numerical value and/or history coal moisture content;Institute It states grey library production information to be predicted and includes at least following parameter:Export blower pressure, generation schedule, generated energy, coal card numerical value, Coal sulfur-bearing numerical value and/or coal moisture content.
In some embodiments, in order to more easily inquire historical information, so that it is determined that the first prediction result, such as Shown in Fig. 2, which may include:
Database 11, the historical information of the grey library yield for storing extraneous input;
Query unit 12, the grey library production information to be predicted for inquiring extraneous input and historical information in the database Between matching result;And
Predicting unit 13, for according to the matching result, combining environmental factor to determine grey library production information to be predicted First prediction result.
In some embodiments, in order to rapidly and accurately combine Neural Network model predictive, as shown in figure 3, this second Prediction module 2 may include:
Method determination unit 21, the prediction technique for determining the grey library production information to be predicted;And
Pattern determining unit 22, the prediction technique for being determined according to the method determination unit 21, combination processing sale Operating mode determines that the second prediction result, the processing sale pattern include underselling pattern, free roping pattern, With monovalent sale pattern.
Wherein, pattern, free roping pattern and monovalent sale pattern are undersold, this is three kinds of treated coal ash sale Operating mode can be selected according to actual conditions.
In general, it when grey library ash position height, can not sell away, the normal production of power generation of trying hard to keep starts free roping pattern; Since weather environment factor causes the market demand less, start sale at low prices pattern;Normal relation between supply and demand sets unit price sale.
More specifically, as shown in Figure 4 and Figure 5, this method determination unit 21 may include with lower unit:
Judging unit 211, for judging that the parameter whether there is successively, if in the presence of if the judging result Aa of each parameter be 1, judging result Aa is -1 if being not present, and the judging result Aa is denoted as to six input neurons of neural network model The threshold values of Xa, 1≤a≤6;
Converting unit 212, two intrerneurons Xb, 7≤b for the prediction technique to be denoted as to neural network model ≤8;
Determination unit 213, for the historical information according to the grey library yield, determine each intrerneuron threshold values Fb, Weights Wab between each input neuron and the intrerneuron, wherein the value of Fb is 0 and ± 1;And
Selecting unit 214, the weighted sum for determining each intrerneuronAnd according to The value of Pb selects prediction technique:If Pb is more than 1, historical forecast analytic approach, and historical forecast analytic approach operating mode are selected For enquiry of historical data library information, information comparative analysis obtains prediction numerical value, and correction data information is as follows:History exports wind turbine pressure Power, history generation schedule, history generated energy, history coal card numerical value, history coal sulfur-bearing numerical value and/or history coal are aqueous Point, the data that each history parameters of the historical information of grey library yield are mainly recorded by computer obtain, and are believed by comparison data If breath wherein five kinds of data above information are identical, result is using historical data information result at that time.
If Pb is less than 1, average price predicted method is selected, i.e., is wherein four kinds of data informations are identical by comparison data information System calculates of that month No. 1 and starts to the average average price data information of current time automatically).
If Pb is equal to 1, convergence analysis method is selected, i.e., by comparison data information, wherein there are three types of only or less Identical data then starts convergence analysis.Convergence analysis pattern, generally when data information Trend judgement in the last week, to pass through letter Single statistical analysis calculating can be obtained data information.
Another aspect of the present invention additionally provides a kind of prediction technique of grey library yield, and Fig. 6 is the ash of the embodiment of the present invention The step schematic diagram of the prediction technique of library yield, as shown in fig. 6, the prediction technique includes the following steps:
S1, the historical information according to grey library yield and grey library production information to be predicted, determine grey library production information to be predicted The first prediction result;
S2, one neural network prediction model of structure, and according to the historical information and grey library production information to be predicted, determine Second prediction result of the grey library production information to be predicted;
S3, first prediction result and second prediction result are subjected to convergent operation, determine the grey library to be predicted The final prediction result of production information;And
S4, second prediction result is replaced using the final prediction result, to pre- to update the neural network Survey model.
Each step is described in detail in conjunction with Fig. 7 to Fig. 9 with that.
S1, the historical information according to grey library yield and grey library production information to be predicted, determine grey library production information to be predicted The first prediction result.
Wherein, the historical information of the grey library yield may include following history parameters:History exports blower pressure, history Generation schedule, history generated energy, history coal card numerical value, history coal sulfur-bearing numerical value and/or history coal moisture content, grey library production The data that each history parameters of the historical information of amount are mainly recorded by computer obtain;The grey library production information to be predicted can To include following parameter:Export blower pressure, generation schedule, generated energy, coal card numerical value, coal sulfur-bearing numerical value and/or coal Each parameter of moisture content, ash library to be predicted production information mainly judges according to actual conditions.
Fig. 7 is the sub-step signal of the first prediction result of the determination of the embodiment of the present invention grey library production information to be predicted Figure specifically includes following sub-step as shown in fig. 7, determining the first prediction result of grey library production information to be predicted in step S1:
The database of the historical information of the grey library yield of S11, foundation for storing extraneous input.
Matching in S12, the grey library production information to be predicted of the extraneous input of inquiry and the database between historical information As a result.
S13, according to the matching result, combining environmental factor determines the first prediction knot of grey library production information to be predicted Fruit.That is, according to the matching degree of historical information and grey library production information to be predicted in the database, in conjunction with such as temperature With the environmental factors such as season, you can determine the first prediction result.For example, there are historical information and grey library to be predicted in database The matching degree of production information is 95%, and is that winter, temperature are low at this time, then coal amount demand is big, therefore, the first prediction result at this time More than 95% of the grey library yield corresponding to the historical information, increased amplitude can be selected as the case may be.
S2, one neural network prediction model of structure, and according to the historical information and grey library production information to be predicted, determine Second prediction result of the grey library production information to be predicted.
Fig. 8 is the specific steps signal of the prediction result of the determination of the embodiment of the present invention grey library production information to be predicted Figure, as shown in figure 8, the specific following sub-step of the step:
S21, the prediction technique for determining the grey library production information to be predicted;
S22, the prediction technique for determining the grey library production information to be predicted;And
According to the prediction technique and historical information, combination processing sale pattern determines the second prediction result, described Processing sale pattern includes pattern of underselling, free roping pattern and monovalent sale pattern.
Pattern, free roping pattern and monovalent sale pattern are undersold, this is three kinds of work of treated coal ash sale Pattern can be selected according to actual conditions.
Fig. 9 is the sub-step schematic diagram of the step S21 of the embodiment of the present invention, and Fig. 9 is the neural network of the embodiment of the present invention The schematic diagram of prediction model, as shown in figs. 5 and 9, step S21 specifically include following sub-step:
S211, judge that the parameter whether there is successively, if each parameter in the presence of if judging result Aa be 1, if being not present Then judging result Aa is -1, and the judging result Aa is denoted as to six threshold values for inputting neuron Xa of neural network model, 1 ≤a≤6;
S212, two intrerneuron Xb that the prediction technique is denoted as to neural network model, 7≤b≤8;
S213, according to the historical information of the grey library yield, determine the threshold values Fb of each intrerneuron, respectively input neuron Weights Wab between the intrerneuron, wherein the value of Fb is 0 and ± 1;I.e. according to the historical information of grey library yield Database, referring again to the parameters of grey library production information to be predicted, you can obtain Fb and Wab;
S214, the weighted sum for determining each intrerneuronAnd according to the value of Pb, Select prediction technique:
If Pb is more than 1, historical forecast analytic approach is selected, wherein historical forecast analytic approach operating mode is query history Database information, information comparative analysis obtain prediction numerical value, and correction data information is as follows:History exports blower pressure, history hair Electric plan, history generated energy, history coal card numerical value, history coal sulfur-bearing numerical value and/or history coal moisture content, grey library yield The data that are mainly recorded by computer of each history parameters of historical information obtain, by wherein five kinds of comparison data information with If upper data information is identical, result is using historical data information result at that time.
If Pb is less than 1, average price predicted method is selected, i.e., is wherein four kinds of data informations are identical by comparison data information System calculates of that month No. 1 and starts to the average average price data information for currently subtracting one automatically.
If Pb is equal to 1, convergence analysis method is selected, i.e., by comparison data information, wherein there are three types of only or less Identical data then starts convergence analysis.Convergence analysis pattern, when data information Trend judgement in the last week, to obtain data letter Breath.
Convergent operation is carried out for step S3, by the first prediction result and second prediction result, specially:Calculate institute The arithmetic mean of instantaneous value for stating the first prediction result and second prediction result, can correct the first prediction result so that most in this way Actual value of the whole prediction result closer to grey library yield.
To sum up, historical information and to be predicted ash of the prediction meanss and method of grey library yield of the invention according to grey library yield Library production information determines the first prediction result, and the second prediction result is determined in conjunction with neural network prediction model, finally by two Prediction result carries out convergent, obtains the more accurately final prediction result of grey library yield, while can also constantly update the nerve Network Prediction Model so that final prediction result is more accurate, improves accuracy.
Furthermore "comprising" does not exclude the presence of element or step not listed in the claims." one " before element Or "one" does not exclude the presence of multiple such elements.
The word of specification and ordinal number such as " first ", " second ", " third " etc. used in claim, with modification Corresponding element, itself is not meant to that the element has any ordinal number, does not also represent the suitable of a certain element and another element Sequence in sequence or manufacturing method, the use of those ordinal numbers are only used for enabling the element with certain name and another tool There is the element of identical name that can make clear differentiation.
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical solution and advantageous effect It describes in detail bright, it should be understood that the above is only a specific embodiment of the present invention, is not intended to restrict the invention, it is all Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the guarantor of the present invention Within the scope of shield.

Claims (13)

1. a kind of prediction meanss of ash library yield, including:
First prediction module determines ash to be predicted for the historical information and ash library to be predicted production information according to grey library yield First prediction result of library production information;
Second prediction module, for building a neural network prediction model, and according to the historical information and grey library production to be predicted Information is measured, determines the second prediction result of the grey library production information to be predicted;
It is pre- to determine that this is waited for for first prediction result and second prediction result to be carried out convergent operation for computing module Survey the final prediction result of grey library production information;And
Update module replaces second prediction result, to update the neural network prediction using the final prediction result Model.
2. the apparatus according to claim 1, wherein
The historical information of ash library yield includes at least following history parameters:History export blower pressure, history generation schedule, History generated energy, history coal card numerical value, history coal sulfur-bearing numerical value and/or history coal moisture content;
The grey library production information to be predicted includes at least following parameter:Export blower pressure, generation schedule, generated energy, coal Card numerical value, coal sulfur-bearing numerical value and/or coal moisture content.
3. the apparatus of claim 2, wherein second prediction module includes:
Method determination unit, the prediction technique for determining the grey library production information to be predicted;And
Pattern determining unit, for according to the prediction technique and historical information, combination processing sale pattern to determine second Prediction result, the processing sale pattern include pattern, the free roping pattern undersold, and monovalent sale pattern.
4. device according to claim 3, wherein the method determination unit includes:
Judging unit, for judging that the parameter whether there is successively, if each parameter in the presence of if judging result Aa be 1, if not It is -1 in the presence of then judging result Aa, and the judging result Aa is denoted as to six valves for inputting neuron Xa of neural network model Value, 1≤a≤6;
Converting unit, two intrerneuron Xb for the prediction technique to be denoted as to neural network model, 7≤b≤8;
Determination unit determines the threshold values Fb of each intrerneuron, each input god for the historical information according to the grey library yield Through the weights Wab between member and the intrerneuron, wherein the value of Fb is 0 and ± 1;And
Selecting unit, the weighted sum for determining each intrerneuronAnd taking according to Pb Value selects prediction technique:If Pb is more than 1, historical forecast analytic approach is selected;If Pb is less than 1, average price predicted method is selected;If Pb is equal to 1, then selects convergence analysis method.
5. the apparatus according to claim 1, wherein the first prediction module includes:
Database, the historical information of the grey library yield for storing extraneous input;
Query unit, for inquiring in the extraneous grey library production information to be predicted inputted and the database between historical information Matching result;And
Predicting unit, for according to the matching result, combining environmental factor to determine that the first of grey library production information to be predicted is pre- Survey result.
6. the apparatus according to claim 1, wherein the convergent operation of the arithmetic element is the arithmetic element to described First prediction result seeks arithmetic mean of instantaneous value with second prediction result.
7. a kind of prediction technique of ash library yield, is applied to the device as described in any in claim 1 to 6, this method includes:
According to the historical information of grey library yield and grey library production information to be predicted, determine that the first of grey library production information to be predicted is pre- Survey result;
A neural network prediction model is built, and according to the historical information and grey library production information to be predicted, it is pre- to determine that this is waited for Survey the second prediction result of grey library production information;
First prediction result and second prediction result are subjected to convergent operation, determine the grey library production information to be predicted Final prediction result;And
Second prediction result is replaced using the final prediction result, to update the neural network prediction model.
8. according to the method described in claim 7, wherein, the historical information of ash library yield is joined including at least following history Number:History exports blower pressure, history generation schedule, history generated energy, history coal card numerical value, history coal sulfur-bearing numerical value And/or history coal moisture content;The grey library production information to be predicted includes at least following parameter:Export blower pressure, power generation Plan, generated energy, coal card numerical value, coal sulfur-bearing numerical value and/or coal moisture content.
9. according to the method described in claim 8, wherein it is determined that the second prediction result of the grey library production information to be predicted, packet Include step:
Determine the prediction technique of the grey library production information to be predicted;And
According to the prediction technique and historical information, combination processing sale pattern determines the second prediction result, the processing Sale pattern includes pattern of underselling, free roping pattern and monovalent sale pattern.
10. according to the method described in claim 9, wherein it is determined that the prediction technique of the grey library production information to be predicted, including step Suddenly:
Judge that the parameter whether there is successively, if each parameter in the presence of if judging result Aa be 1, if be not present judging result Aa is -1, and the judging result Aa is denoted as to six threshold values for inputting neuron Xa of neural network model, 1≤a≤6;
The prediction technique is denoted as to two intrerneuron Xb of neural network model, 7≤b≤8;
According to the historical information of the grey library yield, determine the threshold values Fb of each intrerneuron, each input neuron with it is described in Between weights Wab between neuron, wherein the value of Fb is 0 and ± 1;And
Determine the weighted sum of each intrerneuronAnd according to the value of Pb, select prediction side Method:If Pb is more than 1, historical forecast analytic approach is selected;If Pb is less than 1, average price predicted method is selected;If Pb is equal to 1, select Convergence analysis method.
11. according to the method described in claim 10, wherein it is determined that the first prediction result of ash library to be predicted production information, packet Include step:
Establish the database of the historical information of the grey library yield for storing extraneous input;
Matching result in the grey library production information to be predicted and the database of the extraneous input of inquiry between historical information;And
According to the matching result, combining environmental factor determines the first prediction result of grey library production information to be predicted.
12. the method according to claim 11, wherein:
The historical forecast analytic approach includes step:The database is inquired, and the parameter comparison, going through in database at this time There are at least five kinds of identical parameter informations in history parameter, with the parameter using the corresponding price of the history parameters;
The average price predicted method includes step:The database is inquired, and the parameter comparison, the history ginseng in database at this time There are four kinds of identical parameter informations with the parameter for number, are started to the average price of current time using of that month No. 1;
The convergence analysis method includes step:The database is inquired, and the parameter comparison, the history ginseng in database at this time At most there are three kinds of identical parameter informations with the parameter for number, judge the trend when the historical data information in the last week, really Price lattice.
13. according to the method described in claim 7, wherein, the first prediction result and second prediction result are carried out convergent Operation, specially:Calculate the arithmetic mean of instantaneous value of first prediction result and second prediction result.
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