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Industrial soft measuring instrument based on bionic intelligence and soft measuring method therefor

A field intelligent instrument, soft measurement technology, applied in the direction of instrument, comprehensive factory control, comprehensive factory control, etc., can solve problems such as poor applicability, low accuracy, and difficulty in parameter determination.

Inactive Publication Date: 2007-07-11
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the deficiencies of the existing industrial soft measuring instruments, such as difficulty in parameter determination, poor applicability, and low precision, the present invention provides an industrial soft sensor based on bionic intelligence that is convenient for parameter determination, wide in application, good in soft measurement effect, and high in precision. Measurement system and soft measurement method

Method used

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  • Industrial soft measuring instrument based on bionic intelligence and soft measuring method therefor
  • Industrial soft measuring instrument based on bionic intelligence and soft measuring method therefor
  • Industrial soft measuring instrument based on bionic intelligence and soft measuring method therefor

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Experimental program
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Effect test

Embodiment 1

[0071] Referring to Fig. 1 and Fig. 2, an industrial soft measuring instrument based on bionic intelligence includes an on-site intelligent instrument 2 connected to an industrial process object 1, a data storage device 5 for storing historical data and a host computer 5, the intelligent instrument 2, The data storage device 5 and the upper computer 6 are connected in turn, and the upper computer 6 is a soft sensor intelligent processor, and the soft sensor intelligent processor includes:

[0072] The standardization processing module 7 is used to standardize the data collected in the database when the system is normal. The mean value of each variable is 0 and the variance is 1 to obtain the input matrix X. The following process is used to complete:

[0073] 1) Calculate the mean: TX ‾ = 1 N Σ i = 1 N ...

Embodiment 2

[0129] With reference to Fig. 1, Fig. 2, a kind of industrial soft sensor method based on bionic intelligence, described soft sensor method comprises the following steps:

[0130] (1), determine the used key variable of soft sensor, collect the data of described variable when system is normal from history database as training sample TX;

[0131] (2), in the optimal module of model parameter based on chaotic genetic algorithm, set the population size of chaotic genetic algorithm, maximum algebra, selection probability, crossover probability, variation probability parameter, and set sampling period;

[0132] (3) In the soft sensor intelligent processor, the training sample TX standardizes the data so that the mean value of each variable is 0 and the variance is 1, and the input matrix X is obtained, which is completed by the following process, and its formula is (1) , (2), (3):

[0133] 3.1) Calculate the mean: TX ‾ = ...

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Abstract

A soft measuring meter based on bionic intelligence comprises on site intelligent meter connected with the industrial process object, storage device and upper position machine, intelligent meter, data storage device and the upper position machine connected sequentially, the said upper position machine being soft measurement intelligent processor, which comprises standardized handling module, radial basic function neural network establishment module, module parameter optimization module based on chaotic genetic algorithm, signal sampling module and soft measurement module. It also puts forward a failure diagnostic method. It is convenient, extensive in application, fine in measuring result, high in precision.

Description

(1) Technical field [0001] The invention relates to the field of industrial process soft measurement, in particular to an industrial soft measurement instrument and a soft measurement method based on bionic intelligence. (2) Background technology [0002] In the modern process industry, a large number of key parameters such as process status and product quality lack online direct measurement means. This has become a bottleneck restricting the further improvement of production safety, product quality, output and production efficiency. Soft sensor technology is an effective way to formally solve such problems. [0003] Using industrial measured data, using statistical methods to establish a soft-sensing model of the industrial process, avoiding complex mechanism analysis, the model has a high degree of fitting to the observed data, and the solution is relatively convenient. It is an effective means and tool for soft-sensing . [0004] However, most common soft measurement i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/418G05B13/02
CPCY02P90/02
Inventor 刘兴高闫正兵
Owner ZHEJIANG UNIV
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