RealSense camera not detected

• MartyG

  • April 28, 2020 06:35
  • Edited

  If you are using Windows, this error is apparently a generic one that may not offer useful diagnostic information.

  https://github.com/IntelRealSense/librealsense/issues/2084#issuecomment-406056571 

  Could you tell us more about your project's setup please, such as:

  - Whether you are using Windows 7 or 10, or Linux, or MacOS

   Which model of RealSense camera you are using

  - What your Processing program does (for example, display RGB video).

   

  Thanks!

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• Norillalearning

  • April 28, 2020 17:24

  Hi, thanks for your reply. We're using:

  Microsoft Windows v10 Pro - 10.0.18683 Build 18683

  RealSense D415

  The program displays a depth map and performs object detection between specific pixel depths on a platform facing the camera.

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• MartyG

  • April 28, 2020 17:49

  Are you using the RealSense SDK's unofficial Java wrapper by edwinRNDR to run your Processing code, please?

  https://github.com/edwinRNDR/librealsense/tree/master/wrappers/java 

   

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• Norillalearning

  • April 28, 2020 18:52

  Why do you ask?

  No, we're using the Intel librealsense SDK and some associated drivers. The docs in our repo point me at https://software.intel.com/sites/landingpage/realsense/camera-sdk/v1.1/documentation/html/index.html?doc_devguide_whats_new_in_sdk.html and I'm unable to find a mention of the library that you posted.

  Thanks.

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• MartyG

  • April 28, 2020 19:15
  • Edited

  My apologies.  You mentioned executing code in Processing with a capital P, so I needed to check whether you were using a Java language called 'Processing'.  Thank you for the clarification.

  The 'associated drivers' and 'whats new in sdk' links are for an older 2016 RealSense SDK and should be ignored if you have a D415 camera, as the D415 is not supported by that 2016 SDK.  So I am not sure why your repo would direct you to those resources if you were using a D415 and the current RealSense SDK 2.0.

  Please check which RealSense files are on your Windows desktop.  If you have an icon for a program called 'RealSense Viewer' then you have the current RealSense SDK 2.0 installed.  If you have a folder called 'Intel RealSense SDK Gold' on your desktop then you have the old 2016 SDK installed, and that old SDK does not work with the D415 camera.

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• Norillalearning

  • April 29, 2020 00:58

  Ah, I see. It appears that we should update our documentation then. :)

  Yes, I can confirm that the SDK version is 2.0 based on the folder path of the icon on my desktop.

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• Norillalearning

  • April 29, 2020 01:09

  Just to clarify - our program works 99% of the time. It's just that this error happened seemingly randomly (after we ran the RealSense Viewer) and we'd like to diagnose it so we never see it again.

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• MartyG

  • April 29, 2020 07:07

  The front-page link for RealSense SDK 2.0 resources, including documentation, is here:.

  https://dev.intelrealsense.com/docs 

  The reliability of RealSense camera connections can be increased by using a mains electricity powered USB 3 hub with the camera instead of plugging it directly into the computer or into an "unpowered" hub (one which draws its power from the computer).  Intel have successfully tested RealSense in multi-camera setups with Amazon's own-brand AmazonBasics powered hub model, and I have one of them myself that works excellently with RealSense.

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• Norillalearning

  • April 29, 2020 21:45

  Could you please share a link to the hub you're using? Thanks

  https://www.amazon.com/s?k=usb+hub&rh=p_89%3AAmazonBasics&dc&qid=1588196691&rnid=2528832011&ref=sr_nr_p_89_3

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• MartyG

  • April 29, 2020 21:57

  This is the 7-port model with a USB-C micro connector that I am using:

  https://www.amazon.com/AmazonBasics-USB-C-7-Port-Power-Adapter/dp/B076YN9FW4/ref=sr_1_1 

  If you do not have a USB-C micro size port on your computer then you should get the version with the full-size USB-A connector:

  https://www.amazon.com/AmazonBasics-USB-7-Port-Power-Adapter/dp/B076YPRTKF/ref=sr_1_2 

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