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Automated Inspection Using Machine Vision

Southwest Research Institute Manufacturing Systems Department Presented by Clay Flannigan November 3, 2009. Automated Inspection Using Machine Vision. Overview. Background on Southwest Research Institute Brief Review of Machine Vision Applications for Automated Inspection.

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Automated Inspection Using Machine Vision

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  1. Southwest Research Institute Manufacturing Systems Department Presented by Clay Flannigan November 3, 2009 Automated InspectionUsing Machine Vision

  2. Overview • Background on Southwest Research Institute • Brief Review of Machine Vision • Applications for Automated Inspection

  3. Facts About Southwest Research Institute® • Founded in 1947 • 501 (c)(3) nonprofit corporation • Over 3,300 employees • Over 1,200-acre facility in San Antonio, TX • 2.1 million sq-ft of laboratories & offices • Over 900 patents • 33 R&D 100 awards

  4. SwRI® in the Early 1950s

  5. SwRI® Today

  6. Operational Characteristics • Revenue from Contracts • Applied RDT&E Services • Physical Sciences & Engineering • Broad Technological Base • Capital Intensive Operation • Internal Research Program • Over 4,500 Projects per Year

  7. SwRI Divisions • Aerospace Electronics and Information Technology • Applied Physics • Applied Power • Automation and Data Systems • Chemistry and Chemical Engineering • Engine, Emissions and Vehicle Research • Fuels and Lubricants Research • Geosciences and Engineering • Mechanical and Materials Engineering • Signal Exploitation and Geolocation • Space Science and Engineering • Training, Simulation and Performance Improvement

  8. Food Technologies • Analytical Chemistry • Formulation and Product Development • Micro-Encapsulation • Materials • Environmental and Mechanical Testing • Manufacturing Systems

  9. Manufacturing Systems • Staff • Multidisciplinary: electrical, mechanical, industrial engineers • Process Improvement Engineering • Manufacturing Process Design • Lean Manufacturing • Quality Management • Facility Planning • Training & Consulting Services • Automation Engineering • Robotics • Machine Vision and Sensing Technologies • Custom Automation Development • Modeling and Simulation • System Integration

  10. Machine Vision Background

  11. What is Machine Vision? • Technologies that Allow Computers to “See” • Sense Environment • Analyze • Make Decisions or Measurements • Components • Camera • Optics • Lighting • Processing Software • Output Device

  12. What is Machine Vision Good For? • Automated Inspection • Dimensional Measurement • Counting • Quality Control of Raw Materials • Verification of Final Products • Process Control • Automation Guidance • Security & Surveillance

  13. Food Application Examples

  14. Contaminant Inspection • Package Seal Inspection • Specialized Lighting (Back Lighting) Highlights Contamination Seal Contamination

  15. Defect Inspection • Glass Bottle Inspection • Illumination Used to Highlight Bottle Defects • Line Scan Camera • Rotated Bottle • High Speed

  16. 3D Inspection • Laser Line Triangulation • 3D Profile of Packages in a Case • Used to Verify Case Count

  17. Robot Guidance • Camera Locates and Identifies Liquor Bottles • Color and Pattern Detection • Robot Replaces Missing Bottles

  18. Process Control • Micro-Encapsulation • Vision Used to Monitor Droplet Formation • Feedback Controls System Parameter (Pressure, Flow)

  19. X-Ray Inspection • Potato Contaminant Inspection • Dense Particle (Rock) Detection • Rot (Low Density) Detection • Hollow Heart (Void) Detection

  20. Thermal Imaging • Measure Temperature Differentials • Evaporative Cooling Highlights Water Droplet (Simulated Puncture) Water Droplet

  21. Typical Project Steps • Proof of Concept Testing (Laboratory) • Initial Phase • Requirements Definition • Prototype System • Hardware • Software • Interfaces • Production System • Build, Install, Commissioning • Training, Documentation

  22. Clay Flannigan Clay.Flannigan@swri.org (210) 522-6805 Thank You!

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