Manufacturers have been urged to unlock the value in their production data and learn from the historical knowledge embedded in their organisations.
Speaking at the recent Hannover Messe exhibition, Frans Cronje, Managing Director and Co-Founder of DataProphet, a specialist in developing artificial intelligence (AI) solutions for the manufacturing sector, warned C-Suite executives that, with the unprecedented amount of data coming off the line, there is an urgent need to augment human analysis with AI, separating the data that can provide real value.
He commented: “Within the process control environment there is a huge amount of data coming off the line – too much for any one person to analyse. There is a real danger that operators are being blinded by a blizzard of information and are missing real opportunities for process and quality improvement. My message to manufacturers is that there is a large amount of value in your data and it does not require large capital investment to begin to extract it.”
He continued: “Manufacturing is complex and hard to control, and existing technologies often fail at pre-empting production glitches and fail to spot the changing conditions that can impact quality. Each process step can have hundreds of variables that affect the quality of the output and operational effectiveness. Even the skilled experts lose control of their process.”
Mr Cronje said that with traditional statistical process control software, control limits are programmed by human experts and often fail to capture the complex interactions between all process variables. As a result, there is significant variability in plant performance and production quality that human experts cannot explain.
The solution, says Mr Cronje, is to use AI to find complex patterns in datasets and develop distinct operating paradigms for the production facility. Crucially, modern AI systems, such as DataProphet’s OMNI product, an AI solution to reduce the cost of non-quality for heavy industries, which can then produce control plans that bring production into a stable and optimised state – developing a path from the current plant state to the optimal state.
He continued: “All of this is possible, using cutting-edge machine learning techniques, which allow OMNI to understand the effect that a small change in an arbitrary process step will have on all downstream process steps. Process steps are no longer operated and controlled in isolation and for each prescribed change, OMNI can quantify the expected magnitude of its effect on production.
“We are seeing incredible results, such as a large foundry that has reduced internal and external scrap by more than $1 million per annum and an automotive bodyshop has reduced stud and spot-welding faults by more than 50 per cent.”
Mr Cronje also encouraged manufacturers to learn from historical manufacturing data and not just assume that historical data has no value. “We need to learn from historical data, from PLCs and even old logbooks, to exploit the collective knowledge and experience of all those who have influenced the plant in the past. We need to institutionalise those years of operational experience for the benefit of the manufacturer’s current and future workforce – not lose them.”