Method for controlling a rolling mill production system

Method for controlling a rolling mill production system for production of a coil-shaped end product from a slab, the production comprising processing of the slab by sequentially arranged production units, a strip-shaped product resulting in each subsequent stage from the processing by a respective production unit of the sequentially arranged production units, the coil-shaped end product being a result of the processing of the strip-shaped product by a last production unit of the sequentially arranged production units, the method comprising:

• receiving physical data of a strip-shaped to-be-tested product, which results from processing by a given production unit of the sequentially arranged production units, the physical data comprising a geometry and/or a weight;
• a testing procedure, the testing procedure comprising:
• modeling, under consideration of the physical data, the processing of the to-be-tested product by a plurality of sequentially arranged production units subsequent to the given production unit,
• in case the modelling shows that, under consideration of the physical data, a product resulting from the processing by the plurality of sequentially arranged subsequent production units does not correspond to a first quality criterion, interrupting production of the coil-shaped end product and outputting a signal related to the interrupting, wherein
• the physical data relates to a plurality of different areas of the strip-shaped to-be-tested product according to a predefined pattern, wherein the outputted signal indicates the defect area of the strip-shaped product having physical data for which the modeling results that the product resulting from processing by the subsequent production units does not satisfy the first quality criterion, and wherein
• the method further comprises:
• checking whether a defect-free portion of the end product corresponds to another desired end product on the basis of adapted processing of the to-be-tested product by the production units, the checking comprising:
• modelling, under consideration of the physical data, the adapted processing of a portion of the to-be-tested product without the defect area by the plurality of the production units subsequent to the given production unit,
• in case the modelling shows that, under consideration of the physical data, one product resulting from the adapted processing by the subsequent production units does not meet a second quality criterion, the intended manufacture of the end product is cancelled and the signal is outputted.