Machine Vision 20 reasons to use MV and some typical examples
PPT Slide
Stone age
Industrial revolution
197?
Machine Vision System
FINANCIAL JUSTIFICATIONS OR 20 REASONS FOR USING MACHINE VISION
Saving labor directly concerned with inspection of products.
Saving labor directly concerned with classifying or grading products (natural or manufactured) by quality, size, shape, or appearance.
Saving time used to identify products and components at different stages during processing.
Permitting full automation of processes which included 'incidental' inspection when performed manually, unaccounted for but necessary to avoid, e.g. jamming of automated operations by 'rogue' components.
Avoiding making scrap material with its associated raw material wastage and/or rework costs. Savings in this area can be huge, if only you can persuade people to account properly for scrap costs.
Better process understanding leading to process improvements with financial benefits; vision gives immediate and objective identification of problems, making it much easier to determine the cause(s).
Faster checking of 'first off' dimensions, hence better return of investment on capital equipment concerned, such as swaging mills and extrusion presses.
Avoiding 'giving away' material not contractually required to be supplied. Vision systems can count precisely and can accurately measure material sold by length.
Minimizing raw material usage by working consistently closer to minimum contractual dimensions rather than the middle of the tolerance zone.
Avoiding adding value to already-defective components; e.g. not glazing defective tiles; not bonding defective 'lead frames' to good integrated circuits.
Optimizing usage of irregularly shaped and sized materials such as timber and leather.
Optimizing classification and grading to avoid 'downgrading for safety' syndrome.
Improved sales through quality perception of packaging by consumer; if the packaging is not perfect, the customer may think that the product is not carefully made.
Improved sales by quality perception by retailers leading to better promotion, e.g. allocation of more shelf space, or recommendation as a product which will cause no after sales problems.
Improved sales by product quality reputation leading to 'preferred supplier' status for industrial products.
Reduction of costs of warranty, which can far exceed value of defective item; a missing ball or roller bearing in a race can cause a car engine to fail after a few hundred miles.
Reduction of product recall costs, by tracking batch usage with serial numbers, so that the minimum number of products need to be recalled in the case of a faulty batch of components being discovered.
Reduction of risk of product liability claims, possibly quantifiable in insurance premium terms but claims can be catastrophic for product and company reputation even if fully covered by insurance.
Ability to sell in regulated markets - e.g. pharmaceutical, automotive, where 'best practice' is mandatory.
Saving management time in disputes over grading and classification, whether internally or with customers; results from vision systems are objective and consistent.
The world market for machine vision 4,6 billion $
Electric plates
Electric power meters
Bearings
Needles
Cell colonies
Particles
Vials
Machine vision system
Pharmaceutical tablets
User interface
Image formation
Illumination techniques
Illumination: Front lighting
Illumination: Top lighting
Illumination: Oblique lighting
Illumination: Dome lighting
Illumination: Back lighting
Illumination: Structured lighting
Email: ssip@inf.u-szeged.hu
Home Page: http://www.inf.u-szeged.hu/~ssip