camera feed in webVisu

2020-05-15
2020-05-20
  • jeffersonhui

    jeffersonhui - 2020-05-15

    Hi,

    Is it possible to view a camera feed in webVisu? I have my camera connected to a CrossControl display, and I am using functions from CrossControl's library to display the camera feed in the display. To do this, in my Codesys application, when I switch to the camera, I have to switch to a visualization with nothing in it, then show the camera feed there. However, when I tried that with webVisu, it only shows that blank screen, not the video feed overlapped on top.

    Thanks,
    Jefferson

     
  • i-campbell

    i-campbell - 2020-05-15

    There might be a CrossControl specific solution to get the directly connected camera working, but I just use an IP Camera with http(s) access, and the WebBrowser component.

    help.codesys.com > Web Browser Tutorial

     
    • jeffersonhui

      jeffersonhui - 2020-05-17

      Hi, i-campbell,

      I just tried the webBrowser with an internet website (google.com) first just to test out the webBrowser element, but it seems like my PLC just shows a blank screen when I switch to the webBrowser element. I attached some images. As you can see, in the Codesys IDE, my webBrowser is in the "cameraViz", and is supposed to go to the URL www.google.com. However, when I download and log in to the PLC display, the Codesys IDE logged in displays the website okay, but the PLC just shows a white screen. Do you know what causes this? Why is my PLC not displaying the browser URL correctly?

      Also, I am not sure why my attachment "actual_display.jpg" is upside down. Sorry about that.

       

      Last edit: jeffersonhui 2020-05-17
  • eschwellinger

    eschwellinger - 2020-05-16

    Are you calling this webvisu via CODESYS Automation Server?

     
    • jeffersonhui

      jeffersonhui - 2020-05-16

      I'm actually calling webvisu by having my computer on the same network as the PLC display. The display is connected to my computer via an ethernet cable.

       
  • eschwellinger

    eschwellinger - 2020-05-17

    this is only possible if the cam delivers a stream via a webserver ( not the CODESYS embeeded Webvisu webserver).
    Think this need to be added by the manufacturer of the device.

     
  • dkugler

    dkugler - 2020-05-18

    try another page than google.com for testing the webBrowser Element. I run into the same issue and figured out, that it looks like google doesn't allow opening the webpage in a frame :-)

     
  • jeffersonhui

    jeffersonhui - 2020-05-19

    Hi, do you have a website for me to try? I tried a few different websites and got the same issue.

     
  • jeffersonhui

    jeffersonhui - 2020-05-19

    I tried microsoft.com, youtube.com, wikipedia.org, and codesys.com, but they all had the same issue.

     
    • m.prestel

      m.prestel - 2020-05-19

      Have you tried https://www.codesys.com/ ?
      Could yo provide the full strings used?

      Best regards,
      Marcel

       
      • jeffersonhui

        jeffersonhui - 2020-05-19

        Hi, Marcel,

        I just tried that, but unfortunately got the same issue. See screenshots.

        Thanks,
        Jefferson

         
  • m.prestel

    m.prestel - 2020-05-20

    What hardware and version are you using?

    Best regards,
    Marcel

     
    • jeffersonhui

      jeffersonhui - 2020-05-20

      Hi, Marcel,

      I am using the CrossControl VC display:
      https://crosscontrol.com/en-us/products/display-computers/ccpilot-vc

      As for runtime, I am running their iMX5 3.5.9.30-109 runtime:
      https://support.crosscontrol.com/downloads/codesys

      Is this a better question to ask CrossControl instead?

      Thanks,
      Jefferson

       
      • m.prestel

        m.prestel - 2020-05-20

        Hello @Jefferson,

        I would recommend you ask them.

        It could be that there some libs not available on this hardware used to display a browser.

        Sorry for the long hunt :(

        Best regards,
        Marcel

         

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