Title
A Novel Soft Sensor Modeling Approach Based on Difference-LSTM for Complex Industrial Process
Abstract
The main purpose of soft sensor modeling is to capture the dynamic nonlinear features between the easy-to-measure auxiliary variables and the difficult-to-measure key variables. However, in complex industrial process, it is a challenging work due to the too complicated relationships among the process variables and the base measurement problems. Recently, long short-term memory (LSTM) network shows powerful long-term feature extraction capabilities in complex industrial processes. LSTM focuses on the relationship between the input time series and the output. However, what we concern with are the impact of changes in secondary variables over time on the being detected key variables. In this article, a novel soft sensor modeling approach called difference long short-term memory network is proposed for key variables prediction in complex industrial process. In the method, dynamic information of the inputs is introduced to build a new network unit. Thus, the dynamic temporal features in difference variable and nonlinear features in sequential data are merged to improve the prediction performance. Effectiveness and superiority of the method are validated through detection of the particle size index for a grinding-classification process by comparing to other popular methods.
Year
DOI
Venue
2022
10.1109/TII.2021.3110507
IEEE Transactions on Industrial Informatics
Keywords
DocType
Volume
Complex industrial process,deep learning,difference long short-term memory network (DLSTM),soft sensor
Journal
18
Issue
ISSN
Citations 
5
1551-3203
0
PageRank 
References 
Authors
0.34
0
4
Name
Order
Citations
PageRank
Jiayi Zhou100.34
Xiaoli Wang200.34
Chunhua Yang343571.63
Wei Xiong417.51