July/August 2020

OMRON HAS developed a “defect detection” machine vision system which, it claims, is the first that can identify defects without needing to learn samples. The system uses AI (artificial intelligence) to replicate the techniques of skilled inspectors to detect defects that were previously difficult to spot, thus automating visual inspections. Omron points out that skilled inspectors are hard to find, and their costs have risen. Manufacturers are facing intense pressure to automate processes that have previously relied on the senses of experienced human workers. An added factor is the need to avoid people working close together to protect them from Covid-19, which is increasing the demand for labour-saving automated visual inspection techniques. Such techniques need to be able to identify subtle defects, even on flexible lines producing a wide range of items. Omron describes its new FH Series vision system is the industry's first defect detection AI that can reproduce the techniques of skilled inspectors. It adds that AI is now reaching the stage where it can recognise object features as reliably as humans and learn criteria automatically. AI specialists are not needed to set up and adjust the system. A new AI-based image filter replicates the techniques that skilled inspectors use to identify defects on any product background. Omron claims that scratches and blemishes that were once difficult to spot – such as on sandblasted metal or resin products – can now be identified without using samples or making any adjustments. An AI-based “fine matching” tool learns from images of non- defective products to acquire the “expertise” that inspectors can take many years to develop. It can determine acceptable variation tolerances, cutting costs and boosting productivity. AI has traditionally required a high-end operating environment, but Omron has integrated the new inspection functions into its existing FH Series hardware. Omron predicts that the new AI vision system will free people from simple, monotonous tasks, allowing them to become more engaged in creative activities that advance innovation in manufacturing. www.omron.co.uk n TECHNOLOGY AI-based defect detection system offers similar power to human inspectors Omron's AI-based defect detection technology runs on its existing FH series machine vision platform FOR MORE TECHNOLOGY NEWS VISIT WWW.DRIVESNCONTROLS.COM