GenICam What is New? Vision Stuttgart Nov Dr. Fritz Dierks. Director of Platform Development at Chair of the GenICam Standard Committee

Transcription

1 GenICam What is New? Vision Stuttgart Nov 2012 Dr. Fritz Dierks Director of Platform Development at Chair of the GenICam Standard Committee 1

2 Outline GenICam as Core of Modern Interface Standards Latest Example: USB3 Vision GenICam Status and Roadmap 2

3 GenICam in a Nutshell provides plug&play to machine vision cameras Accessing Camera Features and Grabbing Images Driver Vision Library Camera Vendors interface independent PC Software Vendors Customers 3

4 GenICam Members 115 as of Nov

5 The GenICam Core Team History of international GenICam meetings For full list see 5

6 GenICam is the Core of all Modern Interfaces () 2.0 Latest newcomer: USB3 Vision Pure transport layer standard Fully relies on GenICam as mandatory front end Cameras are SFNC compliant 6

7 P12-09 Agreement In 2009 the Standard Committees Agreed on transport layer interface All new Camera interfaces should be based on GenICam and define a transport layer (TL) only The TL describes only how to access camera registers and how to stream data. GenICam defines how to build a camera on to of the transport layer CameraLink CL Customer and Vendor Benefits Re-use of existing IP / platforms Easy migration between transport layers Systems with mixed transport layers possible 7

8 The Role of GenICam Modules Client SFNC camera features Vision Library / SDK GenICam reference implementation interpret XML file content CLProtocol Camera Link support GenTL GenTL transport layer API Driver TL Standard GenCP packet layout Camera XML GenApi XML file format 8

9 New GenICam Module: GenCP All GenICam aware, packet based transport layer standards need to define a protocol / packet layout for Accessing Registers Raising Events Heartbeat Bootstrap registers Fetching GenICam XML file (manifest table) In order to avoid re-inventing the wheel the new GenICam module GenCP provides a generic protocol definition which can be tailored to the actual transport layer s needs Many ideas are borrowed from GigE Vision GenCP is the base for USB3 Vision and will be used for future packet based TL standards 9

10 Outline GenICam as Core of Modern Interface Standards Latest Example: USB3 Vision GenICam Status and Roadmap 10

11 USB 3.0 Fact Sheet Performance Data MByte/s of sustained bandwidth 5/14/50 m cables passive/active/optical 5V / 4.5W power supply Intel / AMD chipset support Win8 native support, Win7 SP expected Standardized screw locked connectors Active cables use equalizers to compensate for cable losses Passive Cables 3 5 m Active Cables 6 14 m Optical Cables up to 50 m (under preparation) 11 This is not USB 3.0

12 USB3 Vision Standard (U3V) The market accepts a new interface only if there is a standard CL, 1394, GigE have a standard widely adopted in MV USB 2.0 does not have a (MV) standard niche only Basler took initiative and organized a standard committee U3V is international G3 standard hosted by the AiA, and backed by the EMVA and JIIA From kick-off to launch in only 14 month - thanks to to GenICam May 2011 Basler Initiative Jul 2011 White Paper Sep 2011 Kick-Off Ahrensburg Basler, AVT Feb 2012 Meeting Vancouver PtGrey May st Draft Vision Boston Sep 2012 Meeting Dresden Baumer Nov 2012 Launch RC1 Vision Stuttgart Dec 2012e Balloting Completed 3 working meetings only 12

13 31 x U3V Committee Members *) *) as of x Cameras All of these companies are GenICam members 7 x Libraries 5 x Cables 5 x Misc. 13

14 Key Features of U3V Plug&Play Windows P&P manager binds camera automatically GenICam provides standard features and behaviour Zero Copy Video data is copied to RAM by bus master DMA. The PC s CPU is not involved. Typical CPU load < 1% Variable Image Size The camera can decide on-the-fly to send a smaller frame without the host knowing this in advance Applications Line scan, e.g log inspection in a sawmill Pick & Place Live & Trigger Low Latency and Jitter Details next slide 14 14

15 Register Access Performance Measurement Setup 1 measurement cycle = requests, 10 times Read and write requests performed separately Mean, min, max and standard deviation values are computed from one measurement cycle 4 measurement cycles are performed with different (0-3) bulk streaming devices are running MB/s Test application priority is set to REALTIME (24) Results Write = 50 ± 6 µs Read = 170 ± 17 µs 15

16 U3V is an On-The-Wire Standard Client Benefits of on-the-wire GenICam standard way proprietary Supports embedded systems Vision Library / SDK Clear responsibility for software on host side Host proprietary Driver Library Vendor All modern interface standards are defined on-the-wire USB3 Vision Standard Device Device Camera Vendor 16

17 Problems with Non-Standard USB 3.0 Cameras Client The typical USB 2.0 camera requires a proprietary driver from the camera vendor proprietary Drawbacks 2.0 Vision Library / SDK Library Vendor Customer has to use camera vendors proprietary API he is locked in on the API proprietary Drivers are typically available only for Windows no embedded system support Host Driver Considerable CPU load, esp. if driver handle color conversion Device proprietary Device Camera Vendor Many USB 3.0 cameras from ex- USB 2.0 companies stick to this scheme. 17

18 Outline GenICam as Core of Modern Interface Standards Latest Example: USB3 Vision GenICam Status and Roadmap 18

19 Current Release GenICam v2.3.1 Lots of bug fixes and small improvements (more than 100 tickets) VisualStudio 10.0 support Improved CameraLink support Better loading performance 12 times faster 1.5 times faster 1.5 s Large XML file : 3685 nodes, 7200 links Test Laptop : Intel Core i5 2.6 GHz 19

20 Problems with GenICam 2.x First time node map creation XML Cache DOM tree is created from XML Four rounds of style sheets are applied XML Xerces load DOM store/load create Node Map Dependencies are determined and stored to DOM tree DOM is stored to cache Node map is created Node map creation from cache DOM tree is built from cache XML Node map is created - Xalan apply style sheets - Dependency check Large memory foot print Slow 20 20

21 Ideas for GenICam 3.0 First time node map creation XML C++ Parser + preproc bin Cache graph store/load create Node Map Slim binary graph representation of the node map is created from XML using a specialized C++ parser While parsing all pre-processing steps are performed Dependencies are determined and stored to graph Graph is stored to binary cache Node map is created Node map creation from cache Graph is built from cache bin XML Node map is created Dependency check No DOM, no xerces, no Xalan Fast due to binary data structures (no strings) 21

22 GenICam Roadmap GenICam v2.4 General Improvements Bug Fixes SFNC update GenCP added Start Working on GenICam 3.0 Reduce memory footprint Speed up loading even further Get rid of xerces/xalan Better support for embedded system Better support for private installations Fully XML backward compatibility Currently the requirements are discussed and a scouting project is under way 22

23 Questions? Dr. Fritz Dierks Director of Platform Development Chair of the GenICam Standard Committee Basler AG An der Strusbek Ahrensburg Germany Phone: