Soft-sensing Design Based on Semiclosed-loop Framework<sup>*</sup>

汤奇峰; 李德伟; 席裕庚; 尹德斌

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Soft-sensing Design Based on Semiclosed-loop Framework^*

Updated：2026-01-06

- Soft-sensing Design Based on Semiclosed-loop Framework^*
- Chinese Journal of Chemical Engineering Vol. 20, Issue 6, Pages: 1213-1218(2012)
- Affiliations：
  
  1. Department of Automation, Shanghai Jiao Tong University, Key Laboratory of System Control and Information Processing, Ministry of Education,Shanghai,China,200240
  2. Shanghai Xinhua Control Technology (Group) Co., Ltd,Shanghai,China,200241
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：2012
- Accepted：
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[J]. Chinese Journal of Chemical Engineering, 2012, 20(6): 1213-1218.
DOI：

[J]. Chinese Journal of Chemical Engineering, 2012, 20(6): 1213-1218. DOI：

摘要

Abstract

Soft-sensing is widely used in industrial applications.The traditional soft-sensing structure is open-loop without correction mechanism.If the working condition is changed or there is unknown disturbance

the forecast result of soft-sensing model may be incorrect.In order to obtain accurate values

it is necessary to carry out online correction.In this paper

a semiclosed-loop framework (SLF) is proposed to establish a soft-sensing approach

which estimates the input variables in the next moment by a prediction model and calibrates the output variables by a compensation model.The experimental results show that the proposed method has better prediction accuracy and robustness than other open-loop models.

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