A much cheaper solution for IP video than the Axis Q7401, the Edimax IC-3010WG network camera is only £80 from use-IP.co.uk. For your money, you get a white plastic camera with a choice of wired or wifi network connections with a maximum resolution of 640×480 at 30fps. Video streams are available in either M-JPEG or MPEG-4, with a built-in microphone and 3.5mm audio-output jack. The lens is fixed focal length and autofocus down to about 25-30cm, there is a reverse-SMA connector for the supplied wifi antenna on top of the unit and a 1/4″W standard camera tripod thread unusually placed on the back. Continue reading
Yesterday was our first opportunity to take the brand new Axis Q7401 video encoder for a test drive. It’s a well engineered and rugged unit which takes composite video and turns it into an M-JPEG or h.264 MPEG-4 stream. The Q7401 can be powered by either 12v DC or PoE, has an SDHC slot for recording video straight to flash memory, audio inputs and outputs, a serial interface for remotely controlling camera movements and an I/O connector for (e.g) plugging in sensors, or switching lights and buzzers. Continue reading
Frustrated with the poor image quality and/or interfaces of our existing IP cameras, it’s time to search for better alternatives. New trends in IP camera technology include megapixel sensors, h.264 video encoding and, reportedly, open standards. There are several interesting open standards cameras on the market already:
- The stunningly high resolution Elphel series, which have a HD ‘film’ maker/developer community around them.
- The Freescale i.MX27 open reference design, again with a developer and enthusiast community.
- Enthusiast-developed projects around existing (proprietory interface) IP cameras; Edimax make some very affordable cameras, there are similarities between this and the famous Linksys WRT-54g firmware projects.
- Axis, one of the leading IP video hardware manufacturers, already has a history of open-standards involvement and is a part of the ONVIF open-interface group.
Now we’ve seen that the nice and simple DCS-900 is pretty handy when controlled from Linux with no ActiveX. Time to examine the much more complex DCS-3220g, which should give us MPEG-4 encoded video. It’s another rebadged Vivotek as far as we can tell. This camera has a built-in WiFi radio as well as wired ethernet, has an interchangeable lens and should support a 2-way audio link. It comes with a Windows software package for managing multiple cameras. Continue reading
Since ERA already has some IP cameras from previous years, it’s probably time to dust them off and try them out with the new Asus 901s. We have a pair of D-Link badged items – a DCS-900 wired-only Motion-JPEG camera with a maximum resolution of 640×480 pixels, and a much fancier DCS-3220g which has 802.11g WiFi as well as wired ethernet, full PAL -sized MPEG-4 as well as Motion-JPEG output, sound support via an internal mic and line output socket and an interchangeable CS-mount lens. Continue reading