SMAR CAMMART CAMERAS Greater flexibility and improved
performance formulti-v iew inspections Usi g the processing power of m
Using the processing power ofmultiple smarte smart
cameras in parallel for h gh-performance appl ati ns he In-Sight VC200 from Cognex is a
T
cam ras in parallel for high-performance applications Today it is also necessary for complex
high-performance system that
maintains its high inspection speed n o matter how many smart cameras are connected to it. In fact, it actually gets faster with each additional camera. Powerful In-Sight tools with workflow diagrams and spreadsheets make setting up multi-camera applications easier. Platform-independent HMI technology allows for monitoring and controlling the application using a web browser without needing to install specia l hardware or software .
Industrial applications require machine vision using multiple cameras for what are known as multi view inspections. Only in this way is it possible to inspect obj
bjects from different viewpoints following a defined, pre-specified
procedure, i.e. the individual cameras are connected interdependently. For
example: After camera one has detected and identified an object (bottle, tube,
cameras two three and fo ur can chec k for particular specified critical features according to the system configuration. Multi-view inspections are becoming more and more important in a variety of industries: in the food industry, in
,
inspection systems to be easy to configure andmodify – because efficiency and performance play amaj production and he
nce in quality assurance, ajor role in
too. At the same time, it is important to define the options for intervention – i.e. the permissions – that individual employees are given. Previously, it was often difficult to set upmulti-view inspections fromscratch,make changes, or reconfigure the whole system. And as far as user interfaces (HMIs) were concerned, the current solutions do not offer anymobile intervention options and are limited in presenting different operator views based on user-access levels .
NEW SOL NEW SOLUTIION ON
To perform Cognex multi-view inspections in a manufacturing
environment, the user can connect up to four In-Sight smart cameras to the In- Sight VC200 vision controller via four
glass etc.), the system’s other multi-view gigabit Ethernet ports. Now, for the first time it is possible to utilise the processing power of multiple smart cameras in parallel for high-performance applications. The In-Sight VC200 multi smart camera vision system by Cognex distributes the vision processing between
,
beverage filling, in the automotive sector multiple smart cameras, and so expands and in general mechanical engineering situations, wherever continuous inspection of food, components,
the range of possible multi-camera inspection applications.
assemblies or packaging is required fo r quality assurance .
CHALLENGING REQUIREMENTS With complex inspections of this kind, the challenge is two-fold: users need to coordinate and combine the results from multiple cameras that are needed to
CHAL ENGING REQUIREMEN
bottleneck for the required the system as a whole ofte perform the task; and data
sequence.
Conventionalmulti-camera systems use ‘dumb’ cameras attached to a controller. These dumb cameras lack their own processing power – so they share the processing power of the controller. As more cameras are added to the system, its performance reduces and limitsmulti- camera systems to simple applications where images are taken simultaneously.
processing for
rapid test n forms a
Because each smart camera has its own processor adding cameras increases the overall computational power available t o the system. In turn, this means that powerful Cognex vision tools can be used on each camera without adversely affecting the system as a whole, no matter how many cameras are installed in the system. The resulting improved performance helps keep pace with fast- moving production lines, and also provides the flexibility to solve applications with sequential or asynchronous inspections .
SIMPLE CONFIGURATION AND EFFICIENT DAT HANDLING The In-Sight VC200 multi-camera applications are easy to set up with the In-Sight VC Explorer software. The graphical workflow interface simplifies vision application setup as the inspection
SIMPL CONFIGURATION AND EFFICIEN
ATA HANDLING /AUTOMATIONATION /AUTOMAT
AS
SUPPLEMEN
SUPP LEMENT FEAT R E FEA ATURE
Up to four Cognex smartUp o four Cognex smart cameras can be
cameras can be
connected to the In- Sight VC200 multi- smart vision system
connected to the In- Sight VC200 multi- smart vision system
controller. Overall system performance increases with each camera
controller. Overall system performance increases with each camera
steps are displayed as a series of blocks that handle acquisition, image processing and communication. The workflow diagrams provide flexible control of triggering and acquisition, separates the inspection into manageable blocks and provides access to the In-Sight
spreadsheet interface. Users can simply drag and drop the blocks and move them around to modify application logic. They can connect these blocks to easily exchange data between them. Cameras are config ured for thei r inspection tasks using the In-Sight spreadsheet interface. This spreadsheet interface provides access to proven In- Sight vision tools, including PatMax Redline, the powerful part-finding algorithm that can locate parts or
features in less than 20 milliseconds in a five-megapixel image, and OCRMax, a font-trainable OCR and OCV tool that provides high character read rates while keeping misreads to a minimum. User s therefore gain straightforward access to all functions that they are familiar with from their experience with proven Cognex vision technology.
Modern, powerful, web-based HMIs allowmobile and platform-independent viewing of the images and results from each connected camera. The customisable HMIs providemonitoring and control through password-protected access levels. With the In-Sight VC200, operators can view inspections QA officers (for example ) canmodify parameters, and plant managers can review performance statistics simultaneously fromany iOS, Android orWindows-based device with a web browser.
, Cognex MACH VISII www.
www.cognex.com MACHINE V SION SYSTEMS EMS | MARCH 201 MAR 2017 S1 S11
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