HDcctv is evolving at an incredible rate. We have already discussed how the HDcctv alliance is guiding installers on the use of megapixel lenses in order to ensure the best images possible. Today as we further question Todd about HDcctv and where it is all heading , we wanted to know how the HDcctv alliance is addressing the future and how it will continue to challenge other technologies in order to ensure HDcctv over coax continues to be an attractive option for HD upgrades for installers and end users alike. We continued the interview by asking about Remote monitoring of HDcctv.
2) With HDcctv Recorders a lot of focus is spent on the quality of
locally recorded images and this obviously affects bandwidth and
storage – but there is a huge market for remote monitoring that
analogue covers right now, will recorder manufacturers consider
features such as throttled/reduced quality transmission for remote
TR: Certainly, HDcctv DVRs typically provide all the remote IP video capabilities of conventional CCTV DVRs. DVRs typically allow the operator to specify the tradeoffs among transmitted frame rate, resolution, and quality (amount of compression) to optimize the use of available off-site bandwidth. One of the appealing aspects of DVR-based architecture is that the DVR allows those bandwidth optimization tradeoffs for all cameras on the local site to be managed in one device; with MP IP cameras, by comparison, optimizing the use of available off-site bandwidth requires carefully configuring each IP camera, as well as possibly the NVR, in a harmonized manner.
3 ) Is it possible for MP resolution to increase in the future and if
not will HDcctv be able to compete with ever increasing IP camera
resolutions at decreasing prices?
TR: There are two ways in which the HDcctv standard is addressing higher-than-1080 resolution video.
In the near term, HDcctv 2.0, due to be completed in early 2013, provides for a 75Mb/s data stream to be transmitted from the camera in parallel with uncompressed HDTV signal. An HDcctv 2.0 camera could send higher-than-1080 video in this data stream in a compressed form, possibly as IP video.
In the longer term, future versions of the HDcctv standard may take advantage of improved cable driver / equalizer chip technology to send uncompressed video at higher pixel rates than HDcctv 1.0, which could translate to higher resolutions and/or higher frame rates.
4 ) Over the last 5 years the use of cat 5 and ballum technology has
meant less coax out in the field. We know plans are afoot for HDcctv
over cat 5 but when will this be viable and ready to sell to end
TR: HDcctv CX provides for native transmission over 100m Cat-5e cable. The HDcctv CX standard is in preparation now, and we expect it to be completed by early 2013. Chips implementing the standard will be available within six months or less of the standard being completed, so HDcctv CX-compliant products should be available in the first half of 2014.
5) One argument for IP is PoE .Is there any development of technology
that would send power to the camera down the coax like the old line
TR: Yes, all of the current developments (HDcctv 2.0, HDcctv CX, and HDcctv XR) are being defined in anticipation of being able to send relatively high current up the cable in HDcctv 3.0. In the case of HDcctv CX, we expect to be able to leverage proven PoE+ solutions directly.
HDcctv over cat 5e would be a big leap forward especially in new build situations. The thought behind the advancement of the technology is relentless. We continue soon with more questions for Todd Rockoff, until then ………………………….