Design and application of soft sensor object in water treatment plant

摘要

Based on the Object Oriented Flexible Design and Flexible Control theory, the concept of soft sensor object is pointed out in this paper, its structure, function and implementation are discussed. Soft sensor object is a new way for intelligent sensor design and a new method for sensor validation and sensor failure detection. A new training method for Auto-Associative Neural Network (AANN) is also used. Soft sensor object finds its application in water treatment plant.