NI Vision Builder 2013教程.pdf

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32、MENTS PRODUCTS ARE INCORPORATED IN A SYSTEM OR APPLICATION,INCLUDING,WITHOUT LIMITATION,THE APPROPRIATE DESIGN,PROCESS AND SAFETY LEVEL OF SUCH SYSTEM OR APPLICATION.National Instruments|vContentsAbout This ManualRelated Documentation.xChapter 1Introduction to Vision Builder AIVision Builder AI Conf

33、iguration Interface.1-4Elements of the Configuration Interface.1-4Inspection State Diagram.1-6Vision Builder AI Inspection Interface.1-7Running an Inspection.1-7Configuration Interface.1-8Inspection Interface.1-9Chapter 2Checking for the Presence of a PartCreating a New Inspection.2-1Acquiring Inspe

34、ction Images.2-1Defining a Feature on which to Base a Coordinate System.2-2Setting a Coordinate System.2-5Checking for the Cap Using Measure Intensity.2-6Setting the Inspection Status.2-8Testing the Inspection.2-9Saving the Inspection.2-9Chapter 3Inspecting Objects for Correct MeasurementsCreating a

35、 New Inspection.3-1Acquiring and Calibrating Inspection Images.3-1Locating Features to Measure.3-4Measuring Parts of the Gasket.3-7Setting the Inspection Status.3-8Testing the Inspection.3-9Saving the Inspection.3-9Chapter 4Inspecting for Multiple Correct Instances of an ObjectCreating a New Inspect

36、ion.4-1Acquiring Inspection Images.4-1Defining a Feature on which to Base a Coordinate System.4-2Setting a Coordinate System.4-4Measuring the Separation between Connectors.4-4Contentsvi|Inspecting the Fuse Conductor.4-6Making Logical PASS/FAIL Decisions.4-9Setting the Inspection Status.4-10Testing t

37、he Inspection.4-11Saving the Inspection.4-12Chapter 5Inspecting an Object that Spans Two Image FramesCreating a New Inspection.5-1Acquiring Inspection Images from Two Cameras.5-1Acquiring and Calibrating the Image of the Left Edge.5-2Acquiring and Calibrating the Image of the Right Edge.5-4Locating

38、the Right Edge of the Part.5-7Switching Images.5-9Locating the Left Edge of the Part.5-9Calculating the Width of the Part.5-11Setting Calculator Step Inputs and Outputs.5-11Adding Operators and Constants.5-13Connecting the Equation Elements.5-14Making Logical PASS/FAIL Decisions with the Calculator

39、Step.5-16Setting the Inspection Status.5-17Testing the Inspection.5-18Saving the Inspection.5-18Chapter 6Branching and Decision MakingCreating a New Inspection.6-1Creating the Inspection State Diagram.6-1Acquiring Inspection Images.6-5Checking for a Spray Bottle in the Image.6-6Checking for the Cap

40、Using the Caliper.6-7Setting the Inspection Status.6-9Creating Custom Overlays for Inspection.6-9Configuring State Transitions.6-12Testing the Inspection.6-13Saving the Inspection.6-14Chapter 7Looping and VariablesCreating a New Inspection.7-1Creating the Inspection State Diagram.7-1Creating a Varia

41、ble.7-5Acquiring Inspection Images.7-6Finding Pin Edges.7-7NI Vision Builder for Automated Inspection Tutorial National Instruments|viiInitializing the Variable.7-8Indexing Measurements in a Result Array.7-8Setting a Coordinate System.7-9Checking the Pin Gap.7-9Updating the Variable.7-10Identifying

42、Failed Pins.7-11Setting the Inspection Status.7-12Displaying the Current Inspection Image.7-12Configuring State Transitions.7-13Testing the Inspection.7-14Saving the Inspection.7-15Appendix ATechnical Support and Professional ServicesGlossary National Instruments|ixAbout This ManualThis manual conta

43、ins many techniques for using NI Vision Builder for Automated Inspection(Vision Builder AI)to solve visual inspection tasks including inspection,gauging,part presence,guidance,and counting.Follow the instructions in this manual to familiarize yourself with Vision Builder AI and perform common inspec

44、tion tasks.This manual contains the following chapters:Chapter 1,Introduction to Vision Builder AI,introduces the Vision Builder AI environment and describes how to run an inspection.Chapter 2,Checking for the Presence of a Part,introduces the Match Pattern,Measure Intensity,and Set Coordinate Syste

45、m steps.Follow the instructions in this chapter to create an inspection that checks for the presence of a spray bottle cap regardless of the bottle position in the inspection images.Chapter 3,Inspecting Objects for Correct Measurements,introduces image calibration,and the Detect Objects and Geometry

46、 steps.Follow the instructions in this chapter to create an inspection that measures the distance between holes in a gasket to verify that the gasket conforms to manufacturing specifications.Chapter 4,Inspecting for Multiple Correct Instances of an Object,introduces the Find Straight Edge,Caliper,an

47、d Decision Making steps.Follow the instructions in this chapter to create an inspection that measures the distance between the blade connectors of a fuse and checks the integrity of the fuse conductor regardless of the fuse position or whether the fuse is inverted.Chapter 5,Inspecting an Object that

48、 Spans Two Image Frames,introduces the Select Image and Calculator steps.Follow the instructions in this chapter to create an inspection that measures the width of a wooden plank that spans two images.Chapter 6,Branching and Decision Making,introduces the inspection state diagram and the Custom Over

49、lay step.Follow the instructions in this chapter to create an inspection that checks the image for the presence of a spray bottle and,if a bottle is present,transitions to another state to determine if the bottle has a cap.If there is no spray bottle present in the image,the inspection moves on to t

50、he next image.Chapter 7,Looping and Variables,uses the inspection state diagram to implement a looping inspection and introduces the Set Variable and Array Operator steps.Follow the instructions in this chapter to create an inspection that inspects images of electronic components to determine if the