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2017-11-06

: Microscan Assembly Presentation Assembly_Presentation

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© Microscan Systems Inc.© Microscan Systems Inc.
Ensure 100% Traceability and
Quality of Your Products using
Omron Microscan
Automatic Identification and
Machine Vision Systems
Presenter: Steven J. King Machine
Vision Product Manager
Date: Oct 26, 2017
© Omron Microscan Systems Inc.2
Agenda
Automatic Identification and Machine Vision Tool Set
Traceability
Automatic ID Code Types
Code Marking Methods
Code Reading
Code Verification
Machine Vision Inspection
Presence/Absence
Color ID/Color Match
Count
Measurement/Gauging
Assembly and Assembly Verification
Defect Detection
© Omron Microscan Systems Inc.3
AutoID and Machine Vision Basic Toolset
Read
Codes
Read
Text
Verify
Code
Quality
Verify
Text
Quality
Presence/
Absence
Count
Measure
Locate
Color
Detect
Logic
© Omron Microscan Systems Inc.4
Traceability
Strategy
Mark all parts with codes
Enables automation
Build a complete manifest
of what goes into a product
Track from cradle to grave
Requirements
Marking
Mark quality verification
Reading
Data recording
Blade Runner Trivia
Who made the Replicant snakes?
Abdul Ben Hassan
© Omron Microscan Systems Inc.5
Code Marking Types
Human Readable Codes
Machine Readable Codes
1D Bar Codes
2D Symbologies
Highest read reliability
© Omron Microscan Systems Inc.6
Traceability
© Omron Microscan Systems Inc.7
Traceability
Trace
Part Genealogy
Defective Part Tracking
Spill Containment
Selective Recalls
Anti Diversion
Counterfeit Prevention
Nabbing replicants
Track
In house
Part tracking
Process control
Process optimization
© Omron Microscan Systems Inc.8
Code Marking Methods
Labels Ink Jet, Laser, Thermal
Direct Part Marks Laser, Dot Peen, Ink Jet
© Omron Microscan Systems Inc.9
Direct Part Mark Application Examples
© Omron Microscan Systems Inc.10
Automotive Applications
Engine component traceability
Head and block traceability
Assembly error proofing
Selective pairing of components
Transmission components
traceability
Fuel injector traceability
Catalytic converter traceability
PCB traceability
Final assembly and WIP verification
© Omron Microscan Systems Inc.11
Code Readers
Handheld label reader HS 21
Handheld DPM (Direct Part Mark) reader Mobile Hawk
Fixed mount label and DPM reader MicroHAWK ID20, ID30, ID40
Fixed mount vision system with reading MicroHAWK MV, HAWK MV
HS-21 Mobile Hawk MicroHAWK ID Reader
MicroHAWK/HAWK MV
© Omron Microscan Systems Inc.12
AutoID and Machine Vision Basic Toolset
Read
Codes
Read
Text
Verify
Code
Quality
Verify
Text
Quality
Presence/
Absence
Count
Measure
Locate
Color
Detect
Logic
© Omron Microscan Systems Inc.13
Code Verification Check the handwriting
Marking processes drift from nominal
settings ultimately leading to unreadable
marks
Verification allows adjusting of marking
process before unreadable marks are
made
Verification is metrology tool to ensure
consistent mark quality
Verifier can tell not only that mark is
readable but also how close it is to edge
of readability that it is
Measurement value
Frequency
© Omron Microscan Systems Inc.14
Offline or Inline symbol verification
Verify or validate the symbol immediately after printing
Deviate from the standards if process or circumstances require
Provide results that correlate directly with ISO standards
Verification ensures that EVERY product ships with a good quality symbol despite
the fact that every marking system will degrade over time
Without verification, some “bad”
parts escape into the process With verification, we prevent bad
marks from ever being made.
Code Verification
© Omron Microscan Systems Inc.15
ISO15416 - 1D Label Verification
ISO 15416
1D on Labels
Requires even
illumination
Requires good
lens with high
MTF
© Omron Microscan Systems Inc.16
ISO15415 - 2D Label Verification
ISO 15415
2D on Labels
Requires even
illumination
Requires good
lens with high
MTF
Modulation
© Omron Microscan Systems Inc.17
ISO 29158 - 2D DPM Verification
ISO 29158
Direct Part Marks
More forgiving spec
Requires application
specific lighting
© Omron Microscan Systems Inc.18
Direct inkjet printing is economical
But the results are not always pretty
No reads at big retail customers result in fines for each
unreadable code
Inline verification after printing ensures NO bad symbols ship
Verification Example: Inkjet on cartons
© Omron Microscan Systems Inc.19
Code Verifiers
Offline
Handheld label and DPM verifier LVS-9580, LVS 9585
Desktop Verifier LVS-9510
Inline
Fixed mount inline verifier MicroHAWK MV, HAWK MV-4000
LVS-9580, LVS 9585 LVS-9510 MicroHAWK, HAWK MV
© Omron Microscan Systems Inc.20
Code Verification at the printing source
© Omron Microscan Systems Inc.21
Show and Go Tool - Validate printed text by training on a good sample
Detects common printing problems and provides pass/fail output
Symbols are compared against trained golden symbol
Symbols are rejected if the total residue exceeds the set tolerance
Optional tests for Largest single defect, character breaks, contrast, and blurriness
Optical Character Verification
© Omron Microscan Systems Inc.22
Optical Character Verification - Example
Pad Printing
OCV on ICs
© Omron Microscan Systems Inc.23
AutoID and Machine Vision Basic Toolset
Read
Codes
Read
Text
Verify
Code
Quality
Verify
Text
Quality
Presence/
Absence
Count
Measure
Locate
Color
Detect
Logic
© Omron Microscan Systems Inc.24
Full Machine Vision Smart Cameras MicroHAWK MV
© Omron Microscan Systems Inc.25
Brand New High Performance Camera
8 Models
MV-4000-03, Mono, 0.3 MP
MV-4000-03C, Color, 0.3 MP
MV-4000-13, Mono, 1.3 MP
MV-4000-13C, Color, 1.3 MP
MV-4000-20, Mono, 2.0 MP
MV-4000-20C, Color, 2.0 MP
MV-4000-50, Mono, 5.0 MP
MV-4000-50c, Color, 5.0 MP
HAWK MV-4000
© Omron Microscan Systems Inc.26
HAWK MV-4000 Light Kits
© Omron Microscan Systems Inc.27
Presence/Absence of Critical Parts and Features
Count Pixels
Within range of
grayscale intensity
Edge pixels
(brightness
invariant)
Tolerance
Compare count to
min and max values
Output
Pixel count
Pass/Fail
© Omron Microscan Systems Inc.28
Presence/Absence using Color
Color ID
Determine color
from library of
colors
Color Check
Compare color to
one specific color
Tolerance
Compare pixel
count to min values
Output
Color
Count of pixels
Pass/Fail
© Omron Microscan Systems Inc.29
Count
Locate features
Shape based
Tolerance
Compare count
to min and max
allowed values
Output
Count
Locations
© Omron Microscan Systems Inc.30
Count
Locate features
Blob based
Select based on
min and max
size of blob
Tolerance
Compare count
to min and max
values
Output
Count
Locations
© Omron Microscan Systems Inc.31
Measurement
Locate features
Lines
Points
Circles
Patterns
Measure
Line to Line
Point to Point
Point to Line
Calibration
Convert pixels to
real world units
Tolerance
Compare to min
and max values
Output OK/NG
© Omron Microscan Systems Inc.32
Location and Guidance
Train a pattern
Return X, Y, Theta
Add encoder based
offset for “pickup
down the belt”
Intellifind Tool
Edge Based Pattern Matching
Allows 360 degree rotation
Allows scale changes
Lighting invariant
Finds patterns amongst clutter
© Omron Microscan Systems Inc.33
Assembly
Train pattern of points on
each part
Compute offset of part 1
to blueprint
Compute offset of part 2
to blueprint
Compute offset part 1 to
part 2
Output X, Y, Theta to
assemble part 1 onto
part two
Uses “rigid body fit”
algorithm
© Omron Microscan Systems Inc.34
Defect Detection
Often difficult Defects similar in size and shape to allowed features
Highly dependent on lighting to create contrast
© Omron Microscan Systems Inc.35
Defect Detection Lighting Dependency
© Omron Microscan Systems Inc.36
Defect Detection Using OCV
OCV is not just for
characters
OCV can be used for
individual shapes or
symbols
OCV computes
difference between
trained and
inspected shape
OCV combined with
color checks is very
powerful
© Omron Microscan Systems Inc.37
Wrap Up
Modern Machine Vision Systems contain tools for
Automatic Code Identification
Code Verification
Machine Vision
Traceability is a Strategy that involves
Picking the correct code types
Picking the correct code marking methods
Code Reading
Code Verification
Traditional Machine Vision is used for
Presence/Absence
Color ID/Color Match
Count
Measurement/Gauging
Assembly and Assembly Verification
Defect Detection
© Omron Microscan Systems Inc.38
Last Trivia Question
What is a Machine Vision Engineer’s favorite quote
from Blade Runner?
I just do eyes!
HAWK MV-4000
Coming in Dec 2017!
© Omron Microscan Systems Inc.39
Thank you!
For more information… visit booth number
www.microscan.com
Manuals, Software, Drivers,
Technical Publications, Knowledge Base
MicroscanCommunity
Blogs, Videos, Photos
helpdesk@microscan.com
Technical support
© Microscan Systems Inc.© Microscan Systems Inc.
Thank You!
Any Questions?
Contact: Steven J. King
sking@microscan.com
www.microscan.com

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