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Selecting the right interface and making integration easy
Alastair SlaterGroup Manager - OEMSTEMMER IMAGING
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WHO ARE STEMMER IMAGING?
HOW DO INTERFACES COMPARE?
UNDERSTANDING INTERFACE STANDARDS
MAKING THE RIGHT SOFTWARE DECISION
AGENDA
STEMMER IMAGING is:
Europe's leading independent provider of
Core vision technology
Solutions
Services
Our mission:
To provide the users and developers of imaging technology with competitive advantage by adding value in the supply of quality components, expertise and support.
IF YOU DONT KNOW US
HISTORY
1973Foundationof STEMMER.
1975First machinevision systemdelivered.
1987STEMMERIMAGINGis founded.
1997CommonVision Bloxlaunched.UK starts as Pinnacle & Vortex
1998Internationalsales networkset up.
2004Integrationof FirstsightVision andImasys.Swiss officeis opened.
2009Openingof the newEuropeanlogisticscentre.
2010Openingof the newEuropeantrainingcentre.
2012Integration of Iris Vision to address the Benelux
2020Imagingis still ourpassion!
EUROPEAN PRESENCE
4 Offices
Serving 9 countries
World wide distribution
October 2012 we welcome Iris Vision to the Stemmer Imaging Group serving the Benelux
THE MARKETS WE SERVE
Automotive Electronics, Semiconductor& Solar
Print & Packaging
Food & Beverage
PharmaceuticalFactory Automation
Medical Imaging
Traffic, Rail & Transport
Scientific Research
Defence, Security & Aerospace
Sports, Entertainment & Broadcast
Test & Measurement
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A CELEBRATION
25 Years of Stemmer Imaging
180 staff
A STABLE COMPANY
2012 turnover €55m
15% average annual growth since founding
No debt and strong reserves
€4m of stock ready for next day delivery
A PARTNER YOU CAN TRUST
70% of staff are engineers
98% on time delivery
INTERESTING FACTS
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INDEPENDENT KNOWLEDGE VIA IN DEPTH INVOLVEMENT IN STANDARDS
Members of the following interface standard groups
Gen<i>Cam – Active - Chair the GenTL sub group & Initiated Gen CP group
GEVision – Active
USB3 Vision - Active working on the transport layer.
Cameralink – Passive
Cameralink HS – Passive
Coaxpress - On the AIA Liaison group
Plus non-interface standards
EMVA 1288 - Active
STEMMER IMAGING AND STANDARDS
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Your application defines the requirements for the interface
Speed of the interface
Cable length needed
Cost of the interface
How important is data integrity
Plug and play set-up
Can the PC accomodate an additional frame grabber card
Need to network the cameras
Number of interface ports available on the PC
CONSIDERATIONS SELECTING THE INTERFACE
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Standardised connectors & cables suitable for industry
Standardised camera control
Standardised integration with a range of software
Ability to migrate between manufacturers
Ability to migrate between interfaces
WHAT SHOULD A CAMERA I/F STANDARD DELIVER
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Before 1995 there were no standards for Machine Vision and only two interfaces
LVDS
Analogue
CAMERA INTERFACING BEFORE STANDARDS
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Physical Standards
Machine Vision Camera - On the Wire Standards
Umbrella Software & Control Standards
UNDERSTANDING STANDARDS
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1995 to 2005 there was one standard plus two consumer interfaces
Cameralink
IEEE1394/Firewire, USB 2.0
All were physical standards
EARLY MV INTERFACING STANDARDS
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2005 saw the development of GigE Vision
First on the wire standard
This drove the start of the umbrella standard, Gen<i>Cam
THE FIRST ON THE WIRE STANDARD
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Separate from generic Ethernet
Power, Control & Data
GEVision – 100 Mbyte/s 100 m
GEVision LAG 200 MByte/s 100m
Gen<i>cam camera control compliance
Standard on the wire
IEEE 1588 PTP synchronisation
No trigger through the interface
Networkable
GEVISION KEY FEATURES
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Dedicated frame grabber
Uses coax cable
Power, control and data.
13W, 20Mbps uplink
1 Coax 300 to 600MByte/sec 100m to 40m
Up to 6 link aggregated downlinks + optional fast uplink
Through cable trigger with 6µs latency 10ns jitter
Hot-pluggable
Embraces Gen<i>cam
Standard dictates provider to supply a Gen TL
COAXPRESS KEY FEATURES
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Dedicated frame grabber
Copper or fiber based
Power, control & data
300MByte/s channel
CX4 connector 7 channel plus uplink 15m
SFP ( Single channel) SFP+ ( 4 plus uplink) 300m
Through cable trigger 300ns latency and 3ns jitter
Hot pluggable
Hardware error detection and resend
32 GPIO lines with 300ns latency
Data forwarding
Embraces Gen<i>cam for camera control
Gen TL provision is optional
CAMERALINK HS KEY FEATUES
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USB3 Vision based on USB 3 physical interface
Standard on the wire
Power, Control & Data
400MByte/s
7.5W Power
Full Gen<i>Cam compliance
Lockable Connector
5m + cable length
0 Copy transfers supported
No trigger through the interface
Keeps ethernet port free
USB3 VISION KEY FEATURES
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NEW INTERFACES IN NUMBERS
USB3 Vision 10 GigE Coaxpress Cameralink HS
MV Standard Yes Yes Yes Yes
I/F Required Yes Yes
Speed 350MByte/s 1 GByte/s 300 – 1200600 - 2400
300- 2100
Cable Length 5m+ 30m+ 40 Or 100m 15m copper300m Fibre
Standardised Control
USB Vision GigEVision Yes Yes
Plug & Play V Good Good Good* Good*
Network No Yes No No
Cost V Low Low Medium-High Medium-High
* After interface is installed and software is installed
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GENICAM
GenAPI – Standardised XML based control
Genicam Standard Features Naming Convention (SFNC)
GenTL – Generic transport layer from driver to application
How is Gen<i>Cam Structured
Gen<i>Cam compliance standards:
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CVB Camerasuite – Image Manager for GigE Vision Cameras
Provided free with all GigE Vision cameras from STEMMER IMAGING
Will expand to USB 3 Vision when ratified
CVB Image Manager
Same API for any Gen TL supported interface
Same API for proprietary and manufacturer specific interfaces
Can expand with machine vision tools using CVB foundation
IF FLEXIBILITY IS IMPORTANT
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Featuring the wide range of hardware supported by Stemmer Imaging using CVB
Standard and non standard
Direct support inside popular imaging applications
CVB AQ for Sherlock
CVB AQ for Cognex Vision-Pro
CVB AQ is part of AQSense 3D Express - making 3D easy
Enabling any product to support any Gen<i>cam compliant camera solution
Provided free with cameras from STEMMER IMAGING
INTRODUCING CVB AQUISTION ENGINES
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For the integratorFlexibility to change interface and camera manufacturerDeveloped by a supplier who is active on all standards commitees
For the application developerLicence support for all interface types and GenTL in your application or library.
For algorithm developersPlatform to market & sell your tool with a wider marketing base
For the hardware camera manufacturerLicence a high quality SDK with proven customer base.
ADVANTAGE OF USING CVB
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Cable length and data rate often defines the interface to be selected
Consider you needs before choosing software SDK
Camera Manufacturers SDK ties you in to camera vendor
Frame Grabber SDK ties to to interface supplier but camera independence
GenTL allows choice of interface and camera manufacturer
On the wire standards allow easy change of camera if SDK is not tied to camera
Host based interfaces will encroach performance of direct interfaces
Direct interfaces offer more advanced features and via cable triggering
CONCLUSIONS