BI-based system installed with tips from this site

Discussion in 'Blue Iris' started by tai4de2, Sep 13, 2019 at 7:24 PM.

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  1. tai4de2

    tai4de2 n3wb

    Aug 25, 2019
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    Near Seattle
    Thanks to tips I received from this site, I was able to install a system that I'll describe below. I think this system is on the more involved side, and I learned a lot doing it. Ask me anything.

    A total of 13 cameras.
    11 exterior:
    10x Amcrest IP8M-2496, 4K PoE bullet camera
    1x Amcrest IP8M-T2499, 4K PoE turret camera
    2 interior:
    1x Amcrest IP8M-2496, 4K PoE bullet camera
    1x Amcrest IP4M-1051, 4MP Wi-Fi camera

    Most cameras are running at 15fps, ~10Mbit H264, VBR 10240Mbps, 1 i-frame per second. The wifi camera is 15fps, 1 i-frame every 5 seconds. Substreams are turned off in all cases.

    I used H264 to reduce CPU load on the PC (see below). I can always toss in more storage but H265 is just a PIA to deal with without h/w acceleration.

    PC is a repurposed Core-i7 6700 with 16GB RAM.

    Blue Iris is using Intel acceleration for all cameras, with "also BVR" turned on, and "limit decoding" enabled. I am using BI's motion detection on only 2 cameras. For the others I use the camera's motion detection.

    In this configuration, CPU load is around 7% when the BI GUI isn't running.

    I basically created a separate network for the cameras and the PC. I'm using 2x TP-Link T1500G-10MPS, connected to each other and to the PC. All cameras are wired home-run to 2 separate areas in my garage (one per switch). I used outdoor/burial-rated UV-resistant cat6 cable that I bought in bulk (1000' spool).

    One thing I am not crazy about is reviewing clips in the BI iPhone app. It's hard to pinpoint a precise time to review, and I can't see any way to have it jump from one motion detection event to another. Am I missing anything?
  2. IAmATeaf

    IAmATeaf Getting comfortable

    Jan 13, 2019
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    United Kingdom
  3. Mr-Gizmo

    Mr-Gizmo Getting the hang of it

    May 19, 2014
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    IAmATeaf, since tai4de2 cameras are configured for 15fps, then 1 I-frame per second is the same as saying an I-frame interval every 15 frames. So he matched the camera's frame rate to the i-frame interval, with the exception of his wifi camera where the I-frame is every 5 seconds. That means his wifi camera will only generate an I-frame every 75 frames. That's too long an interval especially with a wifi camera that is more likely to drop packets than a camera that is connected by an ethernet cable. I would change the I-frame interval to 15 frames or every 1 second so it matches the cameras frame rate of 15.