Announcement

Collapse
No announcement yet.

VNC-like Remote desktop for J2ME?

Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts

  • VNC-like Remote desktop for J2ME?

    Hi,
    I was wondering if any of you use a mobile phone to remotely control the car-pc?
    I did a bit of searching and found JM2PC http://www.jm2pc.com/jm2pc/jm2pc.faces
    This is able to connect to the PC through bluetooth or internet (gprs/3G), and control it, with some pretty useful functions too, like file transfer. The only drawback is that it only makes a screen capture when requested. So... it's not real-time.
    I'm after something like VNC, of course written for J2ME and using, first of all bluetooth, and then maybe gprs etc.
    If there isn't such a software, it could be written if someone is interested. JM2PC is open source, it could be a starting point.
    I made some calculations: a screen-capture at 320x240 in different color depths and formats:

    Assuming a 20kB jpg screenshot, a continuous stream of 10 frames per second would require a bandwidth of 200kB/s or 1.6Mbits/s.
    This means an average bluetooth adapter (2Mbps) or 3G internet connection. But the jpg compression doesn't need all the 24bpp and 90% quality so it could be more compressed. 10x a 5kB frame is just 50kBps or 400kbps...

    Other (maybe better) ways to achieve mobile->car-pc control is using WLAN. But for now, the most common mobile phones have bluetooth and J2ME.

    So, does someone already use a software like this, or is someone interested in developing it?
    McFly's CarPC on Opel Astra G
    Romanian car-pc owners

  • #2
    Hi, sorry for the late answer.

    Another mobile remote desktop application for J2ME devices is available at: http://www.crystalballmobile.com/. The main difference is that it use a custom image codec reducing the data traffic to ~4 to 7 MB/hour, resulting ~2KB/s. The current version is supporting only GRPS, 3G, WiFi, but Bluetooth support can be easily created. If this feature will be requested it will be added in the next version.

    Comment

    Working...
    X