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Vineyard energy efficiency calculation method and device based on DEA and SFA

A technology of energy efficiency and calculation method, applied in the direction of calculation, resources, instruments, etc., can solve problems such as low accuracy and effectiveness, and calculation results are greatly affected by random factors, so as to improve accuracy and effectiveness and eliminate random noise Effect

Inactive Publication Date: 2019-06-07
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a method for calculating the energy efficiency of vineyards based on DEA and SFA, which solves the technical problems that the calculation results of the calculation methods in the prior art are greatly affected by random factors, and the accuracy and effectiveness are low.

Method used

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  • Vineyard energy efficiency calculation method and device based on DEA and SFA
  • Vineyard energy efficiency calculation method and device based on DEA and SFA
  • Vineyard energy efficiency calculation method and device based on DEA and SFA

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Embodiment 1

[0041] figure 1It is a schematic diagram of a calculation method for vineyard energy efficiency based on DEA and SFA according to an embodiment of the present invention, such as figure 1 As shown, the embodiment of the present invention provides a method for calculating energy efficiency of vineyards based on DEA and SFA, including:

[0042] S10. Estimate the production function of the vineyard by using the stochastic frontier analysis SFA model, and obtain the estimated value of each unknown parameter in the production function;

[0043] S20. According to the estimated value of each unknown parameter, the energy value of each input index of the vineyard within a production cycle, and the energy value of the output index of the vineyard within a production cycle, calculate a correction value for the energy value of said output indicator;

[0044] S30. According to the corrected value of the energy value of the output index and the energy value of each input index of the vine...

Embodiment 2

[0115] figure 2 It is a schematic diagram of a calculation device for vineyard energy efficiency based on DEA and SFA according to an embodiment of the present invention, such as figure 2 As shown, the embodiment of the present invention provides a vineyard energy efficiency calculation device based on DEA and SFA, which is used to implement the method described in the above embodiment, and specifically includes an estimation module 10, a correction module 20 and a calculation module 30, wherein,

[0116] The estimation module 10 is used to estimate the production function of the vineyard by using the stochastic frontier analysis SFA model, and obtain the estimated value of each unknown parameter in the production function;

[0117] The correction module 20 is used to calculate the estimated value of each unknown parameter, the energy value of each input index of the vineyard in a production cycle, and the energy of the output index of the vineyard in a production cycle Val...

Embodiment 3

[0122] image 3 Schematic diagram of the structure of the electronic equipment used to calculate the energy efficiency of vineyards provided by the embodiment of the present invention, such as image 3 As shown, the device includes: a processor (processor) 801, a memory (memory) 802 and a bus 803;

[0123] Wherein, the processor 801 and the memory 802 complete mutual communication through the bus 803;

[0124] The processor 801 is used to call the program instructions in the memory 802 to execute the methods provided by the above method embodiments, including, for example:

[0125] S10. Estimate the production function of the vineyard by using the stochastic frontier analysis SFA model, and obtain the estimated value of each unknown parameter in the production function;

[0126] S20. According to the estimated value of each unknown parameter, the energy value of each input index of the vineyard within a production cycle, and the energy value of the output index of the vineya...

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Abstract

The invention provides a vineyard energy efficiency calculation method based on DEA and SFA, and the method comprises the steps: carrying out the estimation of a production function of a vineyard through employing an SFA model, and obtaining the estimation value of each unknown parameter in the production function; calculating a correction value of the energy value of the output index according tothe estimated value of each unknown parameter, the energy value of each input index of the vineyard in one production period and the energy value of the output index of the vineyard in one productionperiod; and calculating the energy efficiency of the vineyard by utilizing the DEA model according to the corrected value of the energy value of the output index and the energy value of each input index of the vineyard in one production period. According to the DEA and SFA-based vineyard energy efficiency calculation method provided by the invention, the SFA model is utilized to estimate the production function, then the correction value of the energy value of the output index is calculated, and then the DEA model is utilized to calculate the energy efficiency of the vineyard, so that randomnoise is eliminated, and the obtained result is stable, accurate and effective.

Description

technical field [0001] The invention relates to the technical field of environmental performance assessment, in particular to a method and device for calculating energy efficiency of vineyards based on DEA and SFA. Background technique [0002] In recent years, grapes, as an economic crop, have the advantages of high product market price and good economic benefits, and have played an important role in adjusting the agricultural structure and increasing farmers' income; The overcoming of technology has also laid a solid foundation for the development of the grape industry, and the enthusiasm for developing grape production in various regions has been greatly improved. However, modern agriculture has the characteristics of heavily relying on fossil energy and other resource inputs. This high energy consumption production model will undoubtedly increase the burden on the ecological environment; The problem also seriously affects the sustainable development of the grape industr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/02
Inventor 田东熊楚翘解一萌冯建英穆维松
Owner CHINA AGRI UNIV