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  1. K

    Suggestions for protecting the CCTV imaging cell from direct sunlight

    @bigredfish The picture posted by @bp2008 is exactly what I meant. Good to hear the damage is not that severe, but rather visible only during high-gain settings at night. So the trace of the Sun is visible on that specific path only because during the summer solstice, the Sun has stayed near the...
  2. K

    Suggestions for protecting the CCTV imaging cell from direct sunlight

    I have read from this forum that large CCTV camera cells can be vulnerable to direct sunlight. Long exposures to direct sunlight may damage the pixels, and the Sun's orbit in the sky may manifest in visible brightness and color differences between pixels. Of course, the issue concerns only those...
    • kammi
    • Thread
    • Replies: 3
    • Forum: Dahua
  3. K

    Looking for advice on starlight camera for live stream

    Sounds like I might purchase either the 2.8 mm or 3.6 mm focal length IPC-Color4K-X. The 2.8 mm has, of course, a larger field of view, over 100 degrees, while the 3.8 mm has less than 90.
  4. K

    Looking for advice on starlight camera for live stream

    So essentially, the focus at infinity should be pretty crisp with the fixed focal cameras, right? I mean, stars should remain point-like and not appear blurry? Do turret and bullet cameras have different optics in this sense? @garycrist mentioned that bullet cameras should be better, but maybe...
  5. K

    Looking for advice on starlight camera for live stream

    I am also interested in good IP cameras for sky monitoring. IPC-Color4K-X/T and the Color4K 180-degree bullet camera are recommended often, also in this thread. My concern is the depth of the field of the cameras. The sky is basically at focus at infinity. The 1/1.2" sensor cameras are all fixed...
  6. K

    A passively cooled mini PC for RTSP proxy usage

    I would like to hear recommendations for a small X86-based PC that is passively cooled and can run MediaMTX (that is, an RTSP server/proxy GitHub - bluenviron/mediamtx: Ready-to-use RTSP / RTMP / LL-HLS / WebRTC media server and media proxy that allows to read, publish and proxy video and audio...
  7. K

    IPC-T5442T-ZE IPC-T5442TM-AS IPC-T5842T-ZE SMD 3.0 Smart IR Latest New Firmware From EmpireTech

    Thanks for the tip! Looks like the CPU usage is 25-60% if the IVS is on and the bitrate is 6144 kbit/s with the full resolution (I do not know how to manually update the value in Home Assistant so the measurement frequency is low).
  8. K

    IPC-T5442T-ZE IPC-T5442TM-AS IPC-T5842T-ZE SMD 3.0 Smart IR Latest New Firmware From EmpireTech

    So far it has worked pretty well. It boots from an external SSD, which acts also as the / mounting point. Besides these few times of corrupted DAV recordings, it works like a charm (I think the issue is not because of the RPi 4B itself). I use WireGuard to access the NFS mount remotely to view...
  9. K

    IPC-T5442T-ZE IPC-T5442TM-AS IPC-T5842T-ZE SMD 3.0 Smart IR Latest New Firmware From EmpireTech

    I am using PoE. Unfortunately, I did not anticipate that I would need a multi-port PoE switch so I have a single-port PoE injector at the moment. I also wonder if people use TCP or UDP along with RTSP (I use always TCP).
  10. K

    IPC-T5442T-ZE IPC-T5442TM-AS IPC-T5842T-ZE SMD 3.0 Smart IR Latest New Firmware From EmpireTech

    @wittaj @looney2ns Would it suffice if I purchased an unmanaged switch (like TL-SG105) and plug in the camera, my NAS server, and the router on the switch? As I understood, the camera data would go through the switch to the NAS, but I could still be able to log in to the camera and view the...
  11. K

    IPC-T5442T-ZE IPC-T5442TM-AS IPC-T5842T-ZE SMD 3.0 Smart IR Latest New Firmware From EmpireTech

    Actually, I do not have a dedicated switch. The data goes through my home router, but as I said, there is virtually no other traffic than the camera data. But maybe a direct connection would make sense. I was thinking of a dedicated switch at some point to save camera data 24/7 to an HDD but...
  12. K

    IPC-T5442T-ZE IPC-T5442TM-AS IPC-T5842T-ZE SMD 3.0 Smart IR Latest New Firmware From EmpireTech

    Saving to an internal microSD card works flawlessly, the issues sometimes appear when the video footage is saved on an FTP/NFS server.
  13. K

    IPC-T5442T-ZE IPC-T5442TM-AS IPC-T5842T-ZE SMD 3.0 Smart IR Latest New Firmware From EmpireTech

    So far, I have used my T5442 to save the video events on the inserted microSD card. I would like to use NFS or FTP to save the videos on another device to view and back up the material more easily. However, using either NFS or FTP results in corrupted DAV files. There are block artifacts present...
  14. K

    IPC-T5442T-ZE IPC-T5442TM-AS IPC-T5842T-ZE SMD 3.0 Smart IR Latest New Firmware From EmpireTech

    The latest firmware has greatly reduced the false alarms. The camera does not trigger false IVS events at all during snowfall.
  15. K

    IPC-T5442T-ZE IPC-T5442TM-AS IPC-T5842T-ZE SMD 3.0 Smart IR Latest New Firmware From EmpireTech

    I upgraded the camera, everything seems to work fine. Time will tell, whether the number of the false alarms decreases. In the firmware version V2.840.15OG00D.0.R, Build Date: 2022-08-18, how do Global IVS sensitivity and IVS Rule sensitivity play together?
  16. K

    IPC-T5442T-ZE IPC-T5442TM-AS IPC-T5842T-ZE SMD 3.0 Smart IR Latest New Firmware From EmpireTech

    I use Shutter Priority at around 15 ms maximum exposure. I am very happy with the image and video quality at the moment. Motion Detection and Smart Motion Detection are both disabled, and the Anti-DIstrub feature is enabled in the IVS Global Setup (IVS is turned on for humans and vehicles). If...
  17. K

    IPC-T5442T-ZE IPC-T5442TM-AS IPC-T5842T-ZE SMD 3.0 Smart IR Latest New Firmware From EmpireTech

    I bought a varifocal PC-T5442T-ZE turret camera from Andy in July (the box says it is manufactured in November 2021), and it has the following firmware: System Version V2.820.15OG004.0.R, Build Date: 2021-07-29 WEB Version V3.2.1.1082162 ONVIF Version 20.06(V2.9.0.979397) Algorithm Version...
  18. K

    A beginner asks: how to remove recordings and setup SMD or IVS on a 5442?

    By the way, should the event log (on the Alarm page) be stored permanently? If I monitor the Alarm tab and log out, the events are gone when I login back. Hence, I can only view the events triggered during the active browser session. EDIT: Can the web interface login timeout be disabled?
  19. K

    A beginner asks: how to remove recordings and setup SMD or IVS on a 5442?

    Another issue appeared. For my surveillance scenario, intrusion detection works extremely well for humans, and I use both Appears and Crosses with Enters&Exists option to detect bypassers. Motor vehicles is a more complicated case. I would like to record all the vehicles that come to an area...
  20. K

    A beginner asks: how to remove recordings and setup SMD or IVS on a 5442?

    Hmm, I guess you are right. This also reduces tge risk of removing relevant recordings :)
  21. K

    A beginner asks: how to remove recordings and setup SMD or IVS on a 5442?

    Thanks, got it. I am testing IVS right now. I can see the Tripwire lines at the Live window. I also found the way to take snapshots at intervals (Camera->Video->Snapshot / General, and enable General snapshots at Storage->Schedule) . But how to purge old snapshots and recordings manually?
  22. K

    A beginner asks: how to remove recordings and setup SMD or IVS on a 5442?

    Must I enable IVS at the Smart Plan? Does the shape of the IVS region matter: line vs. a box, is there a difference? Is there a setting to take a snapshot at certain intervals, like every 15 minutes?
  23. K

    A beginner asks: how to remove recordings and setup SMD or IVS on a 5442?

    I have been using a 5442 from EmpireTech for a while now. However, how to remove recordings and snapshots saved on the microSD card? At the Playback menu, I have not found any option to delete certain recordings. There is surely the formatting menu under Settings, but it would of course remove...
    • kammi
    • Thread
    • Replies: 7
    • Forum: Dahua
  24. K

    Confused of IP cam options (bullet vs. turret, fixed vs. varifocal, EU suppliers, etc.)

    I ended up purchasing a varifocal 5442T-ZE (from Andy) as some of you recommended. Initial tests are very promising, viewing a full resolution live stream works flawlessly in Linux, and the GUI seems professional. The picture is really crisp. I also bought a PoE injector that has been...
  25. K

    Confused of IP cam options (bullet vs. turret, fixed vs. varifocal, EU suppliers, etc.)

    Thanks to all! It seems that I should decide between a camera like the 5442T-ZE (or its big brother with an 8MP cell if daylight performance is more important) that is both varifocal and hence capable to even recognize passers-by thanks at night to its IR leds, and a fixed focal length full...
  26. K

    Confused of IP cam options (bullet vs. turret, fixed vs. varifocal, EU suppliers, etc.)

    Hello! I am considering to purchase my first PoE ONVIF IP camera for outdoor surveillance. I plan to cover only my front yard with the camera, and preferrably observe when and which kind of traffic there is next to the yard. There is practically only one good spot for the camera, and the front...
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