VBAI

Similar Questions

• Buffer of image in VBAI

  Hello

  I'm working on a project with 3 cameras on a turntable. 2 of them is at the same station and are triggered with a sensor. And the third is at another station, triggered with the second sensor.

  The problem is that we cannot control the flow of the game in this table at a constant rate. There are problems of synchronization of image acquisition and to know which picture belongs to which product. To avoid this, we need a model of programming that is capable of storing images, and after this process, the images based on their image number, so we can know images belong to same product. Although I haven't used buffering before, I think that this design can be implemented using queues in Labview.

  I couldn't find a way to do this in VBAI. I would like to get images from different cameras and evokes these images based on their chassis and process numbers. Any suggestion would be appreciated.

  That's what each picture is for. Once the inspection has loaded and acquire you and process the first image of the camera has, when you get to the stage of acquisition for camera B, even if the camera B has returned 3 images, the step will return the premiera. The other images are buffered by the pilot and the second image is returned on the next call, still more recent images were acquired.

  Watch this video that explains better works this way:

  http://www.NI.com/Webcast/2872/en/

  (Slide 4 - 8).

  Try it and let me know if you have any other questions.

  Thank you

  Brad

• VBAI Image by 90 degrees for display rotation

  VBAI we want to quickly turn an image 90 degrees strictly for exhibition purposes.

  It is an image that is acquired from a GigE Vision camera.

  It seems the only option of rotation in VBAI is the Vision Gometry Wizard tool, which unfortunately does not update the horizontal and vertical image size, clipping out of the segment on the right of the image.

  Is there an another, better way to rotate an image 90 degrees such as the width becomes height and height becomes the width of the new image?

  Thanks in advance!

  Nelson

  Hello

  Here's a LLB containing "VBAI Rotate.vi", that you can call from the LabVIEW execution step.

  The Masker is sure of the value of the Src of the Image on the current image and size to maintain to False.

  Hope this helps,

  Christophe

• VBAI: How to correct the vignetting?

  One of my vision for the future projects will require a very sensitive inspection on a flat surface for the variations in light brightness.

  I intend to use a large ceiling fixture for a light almost uniform from all directions and use a lens of the sensor 1 "with a camera imager in a format more small low noise to reduce the effects of vignetting of the lens.

  However, even with these steps, I plan, overall image, there will be some amount of variation in the apparent brightness of surfaces.

  Clearly, if I was using Labview/Vision I could write a trivial VI to multiply each picture with a picture of correction (with a uniform surface of perfely).

  Is there a way to accomplish this effect in VBAI?

  Thanks in advance,

  Nelson

  Vision Development Module 2015, published in August, we've added the new field Correction screw flat that you can use to calculate or estimate the images of flat ground and the acquired images correct with it.

  Examples are found here:

  \National Instruments\\examples\Vision\Image Processing\Flat field Correction.vi

  \National Instruments\\examples\Vision\Image Processing\Flat field Estimation.vi

  My recommendation is to try the feature in LabVIEW and see if it works well with your images.

  The latest version of the expedition of the VBAI (2014 SP1) which was made available before Vision Development Module 2015 does not yet support this feature. What you can do to use it in this version, is create a VI in LabVIEW 2014 SP1 that implements the Correction on the flat ground and call using the LabVIEW execution step.

  It will be natively supported in the next version of 2015 VBAI.

  I hope this helps.

  Christophe

• running multiple instances of VBAI does not work

  Hello everyone,

  We are 4 common examples of VBAI at the same time. Recently, he had to copy it (because production is doubly).

  With our first system, we have no problems when you try to run multiple instances of VBAI. This time, however, it does not.

  Our system:

  • 4 cams: Allied Manta 201
  
  
  • camera is triggered (rising edge) separately, but almost simultaneously.
  
  
  • Four port NIC (with the right driver :-))
  
  
  • 4 ports and our on-noard port are bridged.
  
  
  • computer: intel I5 (4 cores)
  
  
  • License to run Vision Builder 2012.
  
  
  • Programmed with Vision Builder HAVE 2012.
  
  
  • Interface programmed in c# (receives images of the relevant info 4 programs and displays on the screen).

  Action taken:

  • Test with our program that opens 4 instances of VBAI. Result: 1 single instance opens.
  
  
  • Removed our bridge a connected our cams on a switch. Result: 1 single instance opens.
  
  
  • Open VBAI 4 VBAI-programs directly (but separately). Result: Each program opens and is fully working.
  
  
  • Open 2 programs at the same time (with VBAI). Result: Fist opens and is equipped with the work. At the opening of the second program, that we get error messages saying that it is not possible to connect with our camera.
  
  
  • The test above was created with:
  
  
  1. The cam connected to our network card 4 ports.
  
  
  2. The cam connected through a switch.
  
  
  • I have also written 4 simple programs (just enter a period followed by image)
  
  
  • With these programs, I tried the above test (VBAI 2 hours and run both programs at the same time). Same problem: 1programs starts, the error messages when opening a second program.

  I have the impression that it's a network problem, but what bothers me is that, when the bridge, I don't see a difference with our another computer that works on our original assemblyline. When you work on a referral that our parameters are the same as on a computer that does not have a network card 4 ports. The computer (and liked)) allows us to run multiple instances.

  Any thoughts?

  Any help would be greatly appreciated. I'm sure I'm missing something obvious here, but I don't really see.

  If you need more information about something, let me know.

  With sincere friendships.
  Tom Declercq

  
  

• How to remove old VBAI calibrations?

  VBAI calbration increments, you can select data from previous calibration, or create a new set of calibration data, but there is no option to remove old, obsolete calibration data.

  How can this be accomplished?  Is there a directory where the old files can be deleted, or obsolete, confusing calibrations hault forever our vision computers?

  You can delete calibrations in system resources manager (Tools > System Resource Manager)

  Select the calibration files that you want to remove, and then click Remove. Note that multiple selection works.

  Hope this helps,

  Christophe

• Camera GigE of NI VBAI lost packets

  We run VBAI on a fast PC with an Intel Pro/1000 card and a switch GigE of jumbo-frame to a large number of Basler Ace GigE cameras.

  It is understandable that multiple cameras cannot transfer complete images to the PC to the full flow of 1000 MHz because of the limited bandwidth between the PC and the Switch simultaneously.

  A way around this is to strangle the maximum for each camera down data flow so that the sum is not greater than 1,000 MHz.

  However, this means that transfers images always take more time, even if only a single camera to enter service, a large part of the time.

  What is a fundamental limitation of GigE Vision, or are smart enough work as soon as possible of the GigE Vision cameras... via returns package loses casual?

  Nelson

  We have found a solution.

  The problem is that the cameras, switch, network card and VisionBuiilder cannot treat all cases where more than one camera sends images to VisionBuilder where the total of the rates of data for these cameras is never more than 1 GB of band bandwidth network card.

  (It would be nice if someone did a network switch that has a little more package buffer memeory...) 100 MB?... so that the images of the garbage does not have the occasional collision while allowing most of the captures operate at maximum speed.)

  Solution:

  (1) we have added 3 ports on network 1 Gb additional to our pc of mink.

  (2) in order to redistribute traffic camera in more than one network port, we assigned to each network adapter and corresponding cameras, to a different subnet.

  (3) we have lowered the rate of data for less urgent cameras.

  Even after the lowering of the data rates for multiple cameras in NOR-MAX up to 200 Mb/s such as lost packets should no longer be possible, we stil seen.

  After a detailed examination, we found that the stages of acquisition image VisionBuilder are not careful the data rates that you assign to NOR-MAX and always default to 1000 MB/s maximum rate, so saturated flow and lost packets.

  The solution to this problem proves to be explicitly set to the flow desired in each stage of the acquisition of Image VisionBuilder, using the attributes tab.  While you're there, you should also check other critical parameters, such as the packet size, are also correct and update if not.

  After you explicitly fix rates given in every stage of image acquisition, we ran a stress test of capture image that ran all the process of vision (several programs running at the same time) about 10 times faster than necessary and observed no lost in all packets.

  Problem solved.

• VBAI acquire multiple images

  Hello

  We work with VBAI 2012 and we want to acquire multiple images as quickly as possible one after another to decide what is best for the inspection. Is it possible to take for example 5 images one after the other, or what I call the image to acquire five times?

  Thank you

  Oliver

  Why not continuous use to acquire images and use 5 as the number of buffers required?

• Cannot open VBAI 2014

  Hello

  I have been using different versions of Labview, VBAI. Then I uninstalled all the software of NOR and reinstalled the Labview 2014 and 2014 VBAI.

  Now when I try to open VBAI, it does not pass the logon process. Attached to the screenshot.

  Sometimes it gives an error on an entry point cannot be opened in nivissvc.dll. I googled and found similar situations that explains the reason for the problem is IMAQ and Windows itself. I uninstalled the drivers IMAQ and nothing has changed.

  Also, I try to reinstall VBAI, and gave no results.

  Windows format is not an option for me. So, I wonder why this phenomenon happens and how to fix this?

  Moreover, I was able to use VBAI 2014 first place before uninstalling all software of NOR.

  Thanks in advance.

  Hello

  I removed all the software of NOR and installed VBAI and VDM 2013 this time. VBAI was once again on the start screen. And in labview Vision screws gave this kind of error:

  

  Then I seek redress Labview Run Time, but it was not listed separately. So, I try to repair Vision Run Time Engine.

  Now the above error is fixed, and I can acquire images in Labview, as well as in VBAI. I have not tried the VBAI 2014 yet and I do not intend to install it again

  But obviously there is something fixed to fix the engine to run Vision.

• How do I auto detects the target using the trigger VBAI mode

  Hello world

  I had a vision system of machine ready to take choose using VBAI 2013 sp1.  Also, I use a sensor switch to trigger the camera to take pictures.

  When I type the loop running, it just won't continue to take photos no matther switch sensor triggers the camera or not.  I think it's the step that I used for the recording of the image, in the stage of registration of the image, I used picture newspaper still, but I don't want to use which is only what inspection status allows no other choice.

  So, how can I let the unit wait until he got the trigger of the alarm switch signal, and then take a picture and save the image?

  the stage of inspection to acquire the image, I used the trigger mode and everything worked fine, except the time error settting upward, I used 5000ms and if I put bigger like the 50000ms, VBAI turned really slow and showed time out error.

  If anyone can help me on this matter?

  Thank you

  You can use the diagram States-transitions to go only in a State based on the result produced by some steps.

  First, remove the registration step of the image of the State to check with you get the image

  Press Ctrl + E to turn the main view on the state diagram.

  Right click and create a new State.

  Right click on the State to inspect and create a new transition to this new State.

  Double click on the transition to edit it.

  Choose to acquire the Image - waiting time and set the condition false, to spend in this state when there is no timeout.

  Move the default transition from that State to the final State.

  Click on the new State to select it, and then add the image registration step.

  Using a state diagram, you have programmed an inspection that will record the image when there is no timeout.

  The State-transition diagram is a powerful tool to add a logic, branching and looping of your inspection.

  Open the tutorial 5 - state diagram Branching.vbai and tutorial 6 - State chart Looping.vbai for examples on how to use it.

  I hope this helps.

  Christophe

• VBAI API fails to load/launch of inspection

  Hello world

  I am facing a problem today with an application that worked before. Do not know what is spent on the computer, but now, my application doesn't work anymore.

  I have different inspections of VBAI tree running on the same PC, they are loaded and started through the VBAI API from a small VI LabVIEW functions.

  The HMI of the VBAI appears but never turns by inspecting the mode. See screenshot below. The iteration count remain at 0.

  

  I already checked that the inspection is fully functional, if I run the normal VBAI interface.

  Could you please help me to troubleshout this question.

  Thanks a lot for your answers.

  Find the problem by myself!

  For some unknown reason, the Vision Builder.ini has been replaced with the default values.

  And the allowmultipleinstances = True line prevented is gone, my request to load the 3 different instances.

  By adding this line once again, everything returned to normal.

  Thank you

• Improve the performance of application VBAI

  Hello

  I have a request, I wrote in VBAI and am satisfied. The problem is that it uses VBAI States for circle detection several times (via a loop). This causes a maximum of 300 ms extra use of the CPU by inspection.

  What I was asking is this: if I migrate my VBAI app to LabVIEW, how can I run it again on the target using LabVIEW RT?

  I'm running a smart camera, NI 1752, with clock 600 MHz and 512 MB RAM. Inspection rate required is 1 inspection per second minimum.

  My application inspects a conveyor which shows (0-8) units per inspection. When no unit is present, the inspection time is fine, but when there are 8 units are equal to ~ 1200 ms per iteration. I suspect it's because of me using machines to States VBAI, which introduced a large number of delays. I do not know code LabVIEW would be more effective.

  Thank you

  Hazim Salem

  If the initial inspection took about one second per iteration. I think there is some overhead of reference that we include in these figures that show us who actually don't occur when you run in mode of inspection and this is why there are ~ 7ms General fresh extra time compared to the sum of all stages of inspection. Anyway, I made some minor changes to the step of PM and it took off about 70ms. I also tried to use a stage run LV to do all detections of circle at the time and overlays, so you don't need to make a loop and it saves another 250ms.

  Original time ~ 1000ms

  New time ~ 680ms

  I have attached the LV code used by the step execute LV and updated control. Don't forget to copy the LLB in the folder of the target at c:\User generation live if you need to make changes, update the Circles.vi multiple detect and rebuild the LLB from the project and copy LLB resulting to the target.

  Hope that helps and let me know if you just want to while LV (that would be the fastest), but maybe the modified VBAI inspection is fast enough now.

  Brad

• CV 1457RT and VBAI: Double digital output

  I have a problem with the CVS 1457RT and the VBAI.

  I configured two steps with the VBAI for the CVS.

  The first step: I've read about the digital input which should trigger my second step.

  the second step: I acquire an image (with an ACE of the Basler) and then I measured 8 distances and count 2 edges. After this, I generate a pulse on the digital output once.

  After that I did a VI in LabVIEW that measures the time between the IO.

  In this VI and on the module which is connected to the digital output, I see that the putput pulses twice but only a few times.

  I guess you get noise on your digital input and trigger twice, so that it works the inspection twice, giving you two pulse output.

  You can implement a digital filter, where the value that comes out of the filter does not change until entry remained at the same value for the N samples.

  Bruce

• Custom Tools/menu bar VBAI

  I would like to find a way to customize the menu/toolbar for a Vision Builder AI.  It seems that the buttons launch and Inspection stop Insepction cannot be hidden/disabled or password protected operator.  Does anyone know of a way to control these elements?

  I am aware that the VBAI may use a custom interface developed in a LabVIEW VI, but it seems to me that the buttons Run/Stop always appears unless a property for the latter can be accessed.

  How a developer can prevent accidental a machine vision inspection stop if the Stop button is always enabled?

  Thank you
  Dan

  Hi Dan,.

  Unfortunately, there is no way to disable these keys of Vision Builder AI. That's the good reviews.

  You are right: even when using a custom user Interface, VBAI will display these buttons and they will be activated.

  The only solution to this issue now, is instead of using the Vision Builder of the application's main executable file, create custom LabVIEW user interface and use the VBAI API to open/run the inspection. You will be able to program in LabVIEW user access capabilities and only activate the features that you want to give access to the operator on your UI.

  The developer will always be able to edit the control using Vision Builder AI.

  We are aware of the lack of UAC in VBAI.

  Example of using the VBAI API can be found here:

  C:\Program Files (x 86) \National Instruments\Vision VBAI 2014\API examples

  Christophe

• VBAI 2011 SP1

  Anyone know where I can download this patch for VBAI 2011?

  splee wrote:

  Nope. Impossible to find anything from the link

  Try this one:

  http://FTP.NI.com/support/softlib/vision/vision%20Builder%20For%20Automated%20Inspection/2011%20SP1/...

  Andrey.

• VBAI and vbaiGetInspectionImage

  Hello

  We use VBAI 2012, 2012 CVI and Basler ACE camera for the inspection of vision. We want to start a VBAI CVI inspection. Meanwhile, we can start and stop an inspection of the CVI. But it is not possible to obtain a picture of the CVI. We do not know why.

  Here's our code:

  //
  RW = vbaiLaunchLocalVBAIEngine (name, VBAI_2012, 1, INACT, STRLEN);
  RW = vbaiOpenConnection (session name, NULL, 0, & Session);
  RW = vbaiOpenInspection (Session, "c:\\test2.vbai");
  RW = vbaiStartInspection (Session);

  Create an image
  image = imaqCreateImage (IMAQ_IMAGE_U8, 0);
  RW = vbaiGetInspectionImage (Session, NULL, 1, 1, image, &Flag);)
  RW = imaqDisplayImage (image, 0, TRUE);

  Unfortunately, we always get a false flag and never an image. Can anyone help on this

  Thank you

  Oliver

  Try to check the box that says "Display the resulting Image" just above the market on the right. I think that this could be the problem... If do not display you the image, we have not an image back to you. Step using the GUID for the acquisition stage would also work. Let us know if this is the case and I can have is Knowledge Base.

  Thank you

  Brad