Part‐tracking labelling and machine vision

Purpose – Considers the use of bar and matrix codes in assembly operations and after‐sales part tracking.Design/methodology/approach – Reviews the marking methods, the types of codes employed in different industries, and the machine vision equipment used to read them.Findings – Matrix codes are being widely adopted as a means of improving the efficiency and quality of production, and as a way of achieving traceability, for the appropriate handling of any faults that appear during usage. Equipment for marking and reading the codes is available from several suppliers, and can be integrated into the production line.Originality/value – Shows the power and versatility of matrix code labelling for the manufacturer.