dvida

dvida

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Viewing 15 posts - 1 through 15 (of 17 total)
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  • in reply to: IP-Camera by high ambient temperature #561
    dvida
    Keymaster

    Hi Jurgen,
    sorry for late late reply, I recommend directing questions to our mailing list: https://globalmeteornetwork.org/

    There is a network of 30+ of these cameras in Albuquerque, New Mexico that successfully survived all summer there, and they reguraly get +40C weather.

    Cheers,
    Denis

    dvida
    Keymaster

    Hi Don,
    sorry for the late reply, I don’t usually monitor this forum too often!
    I recommend sneding questions to our mailing list in the future: https://groups.io/g/globalmeteornetwork

    I will send you a bunch of resources via e-mail.

    Cheers,
    Denis

    in reply to: Excited to build one #559
    dvida
    Keymaster

    Hi!
    Sorry for the late reply, I don’t usually monitor this forum too much.
    Would you mind redirecting this question to our mailing list, and I’ll answer it in detail there: https://groups.io/g/globalmeteornetwork

    Cheers,
    Denis

    in reply to: Building a camera setup #552
    dvida
    Keymaster

    Hi,
    if a station has constant Internet access, the time on the Pi will by NTP synchronized. NTP synced time is usually precise to within one video frame, so millisecond precision is not really necessary. Even if the time is off by one second, the astrometric precision of meteor systems is too small for it to really matter.

    What really matters is precisely measuring geo coordinates of meteor cameras. People usually use Google Earth or smartphone GPS apps, but those coordinates can be off by 10+ meters. Our meteor camras have a precision on the order of 10s of meters at 100 km (average range to a meteor), so having precise coordinates is essential. We are looking for an easy and cheap way to measure geo coordinates to within a meter. That might be achieved by using inexpensive GPS modules and averaging the reported coordinates over several days, but we still haven’t tried that approach. There are also some high-precision GPS modules, but we are now talking about $200+ investment. Any development in this area would be much appreciated.

    Cheers,
    Denis

    in reply to: PC+camera only #532
    dvida
    Keymaster

    Hi,
    you can use a Linux PC instead of the Pi and build the camera yourself if you’d like. Just send me an e-mail through the contact form and I will provide you the details and answer any questions you might have.

    Cheers,
    Denis

    in reply to: IMC 2019 #529
    dvida
    Keymaster

    Hi Bill,
    you might get more answers if you send your question to our mailing list: https://groups.io/g/globalmeteornetwork

    As for the IMC, the time of the conference this year is a bit unusual (October), which makes it impractical for many people in academia and students.

    Cheers,
    Denis

    in reply to: Which RPi, which Raspbian? #525
    dvida
    Keymaster

    Hi Pete,
    sorry for the late reply, I was at a conference in Slovakia. Please see the quick start guide here: https://docs.google.com/document/u/1/d/1MTL85YMYH33u8OZ9Tl0JjSZXcLn8mOmNrCOC0I28Drw/edit

    The link to the SD card image is inside. You should use a RPi 3B+ and a fast 64 GB (minimum) SD card. Also, make sure to use a power supply that can deliver at least 2.5 A.

    Let me know if you have any other questions!

    Cheers,
    Denis

    in reply to: Building a camera setup #524
    dvida
    Keymaster

    Of course! Just send me an e-mail through the contact form on the site and I’ll send you the details.

    Cheers,
    Denis

    dvida
    Keymaster

    The Pi has to be specially configured for this, you can follow the instructions here (under “Configuring the network”): RMS installation instructions

    Or you can just flash the SD card image where everything is already installed. You can find the link to the SD card image here: RMS quick start guide

    in reply to: Building a camera setup #477
    dvida
    Keymaster

    Hi Tim!
    Could you please send me an e-mail using the contact form on this site, and I’ll send you the details by e-mail.

    > Also, can the RPi deal with more than one camera?
    Unfortunately not, even now it’s running at 70% CPU, plus it has to decode the H264 video stream in real time on the GPU. So it’s one camera, one Pi.

    Cheers,
    Denis

    in reply to: CMN_binViewer: Freze and export #461
    dvida
    Keymaster

    Hey Alex,
    a) CMN_binViewer was developed to run on Windows and is not entirely stable under Linux. Most of the features work, but some do not.
    b) Run this in the terminal: pip install imageio

    Also, feel free to join out mailing list, if you haven’t already: https://groups.io/g/globalmeteornetwork

    Cheers,
    Denis

    in reply to: New Station with analog cam – worth or not ? #442
    dvida
    Keymaster

    Hi Alex,
    we do have one station in the north of Germany already, so feel free to join the fun!

    Regarding using the analog camera for RMS, it is most certainly possible, but I would warmly recommend getting a digital CMOS camera which can get you at least 2 more magnitudes of sensitivity and much better looking images!

    Let me know if you have any other questions.

    Cheers,
    Denis

    in reply to: Configuring your IMX291 camera #403
    dvida
    Keymaster

    Hmmm… So the string in the default config should work fine:
    device: rtspsrc location=rtsp://192.168.42.10:554/user=admin&password=&channel=1&stream=0.sdp ! rtph264depay ! queue ! h264parse ! omxh264dec ! queue ! videoconvert ! appsink sync=1 ; device id

    But be aware that this part: “rtsp://192.168.42.10:554/user=admin&password=&channel=1&stream=0.sdp” is not the same for all cameras. Is this different than what you are using to connect to the camera with VLC? You should basically use that VLC string in the device line.

    in reply to: Configuring your IMX291 camera #389
    dvida
    Keymaster

    Hi,
    we had similar issues with some of the cameras, and the fix was to give it a fixed IP address.
    Under Settings -> System -> Network uncheck “DHCP enable”, set a fixed IP address and a correct gateway (IP address of your router), and check “DHCP enable” again.

    Let me know if that fixed the issue!

    in reply to: Using an analog CCTV #332
    dvida
    Keymaster

    Hey Chris,
    you got it! We’re slowly dropping support for analog cameras, but as long as you manage to install the capture card/dongle and OpenCV supports it, it should work fine.

Viewing 15 posts - 1 through 15 (of 17 total)