Bilinear data coordinating method

A coordination method and bilinear technology, applied in the direction of control/adjustment system, instrument, adaptive control, etc., can solve the problems that the data accuracy is difficult to be guaranteed, and the processing method is rough.

Inactive Publication Date: 2007-02-28
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This processing method is relatively rough, and the data accuracy is difficult to be guaranteed.

Method used

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  • Bilinear data coordinating method
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Examples

Experimental program
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Embodiment

[0141] Taking the extraction process of a synthetic juice given by Meyer (1990) as an example, its logistics relationship structure diagram is shown in Figure 2. There are 4 sets of equipment, 11 streams, and 7 components. For the convenience of implementation, each set of equipment, logistics and components are numbered, as shown in Figure 2. There are 88 variables in this process, among which there are 11 variables of material flow rate, which are F j (j=1, 2...11); there are 77 component variables, which are x j，k (j=1, 2...11, k=1, 2...7). The measurement of each variable is as follows:

[0142]Measured stream flow rate variable: F 1 , F 4 , F 5 , F 6 , F 7 , F 8 , F 10 ; (7)

[0143] Unmeasured stream flow rate variable: F 2 , F 3 , F 9 , F 11 ; (4)

[0144] Measured component variable: x 1，1 ~x 1，6 , x 2，1 , x 3，1 , x 4，1 ~x 4，4 , x 4，6 , x 5，1 ~x 5，6 , x...

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Abstract

The invention relates to a dual-linear data coordinate method, which comprises: 1, based on the material relation diagram of mechanical factory, generating dual-linear data coordinate mode; 2, using variable eliminate method to decompose and normalize the coordinate mode; 3, based on decomposed and normalized mode, using micro particle group algorism, to obtain accurate material and component data. In said the invention, the priority value can be fixed easily, to treat the non-watched material speed and component variable easily, with high coordinate accuracy. And since the coordinate process is decomposed and normalized, and the search space of micro particle group algorism has reduced dimensions, the invention has high coordinate efficiency. And it uses the upper and lower limits of component variables, to confirm reliable coordinate result. The invention can be integrated with other systems.

Description

technical field [0001] The invention relates to the field of process data correction, in particular to a bilinear data coordination method. Background technique [0002] Usually in the chemical production process, it is necessary to collect a large amount of process measurement data online or offline, such as stream flow rate, composition, temperature, pressure, etc., and use it as process design, simulation optimization, control, device performance analysis and production management decision analysis direct basis. However, the measurement error in the actual measurement data is inevitable, so that the measurement value cannot accurately meet the physical and chemical laws of the material and energy balance of the production process unit, resulting in data inconsistency; at the same time, due to economic conditions, measurement technology and Due to the limitations of the instrument itself, not all variables can be measured, resulting in incomplete data. In the enterprise ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/02
Inventor 荣冈徐忠勇冯毅萍王旭
Owner ZHEJIANG UNIV
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