CCTV

Wisenet domes

by Mark Rowe

The new Wisenet 5 megapixel Flateye IR dome cameras from Hanwha Techwin are designed for high humidity uses, and where condensation might occur because of temperature differences. The Wisenet QNE-8011R, pictured, and QNE-8021R domes each have a flat surface cover which is applied to the front of the lens, instead of the dome cover. This reduces infra-red diffused reflection which is caused by moisture and in the absence of a normal transparent dome cover, also removes the effect scratches can have on image clarity.

Uri Guterman, Head of Product & Marketing for Hanwha Techwin Europe said: “These new H.265 models are intended to provide a robust and cost-effective solution for video surveillance projects where the end-user client wishes to capture high definition images in challenging environmental conditions, such as industrial or food processing plants. Installers will also benefit from having to spend less time on site as there is no need to initially remove and then mount a dome cap during the installation process.”

The QNE-8011R comes with a 2.8mm fixed lens and the QNE-8021R has a 4.0mm fixed lens. Both have built-in IR (infra-red) which ensures objects can be recognised at night up to a distance of 20 metres, the makers report.

As with all cameras in the Wisenet Q series, the new models are all true day/night (ICR) cameras and feature Lens Distortion Correction (LDC). They also offer enhanced Wide Dynamic Range (WDR) which performs at up to 120dB to produce clear images from scenes containing a mix of bright and dark areas that normally results in over-exposed or under-exposed images.

A new open platform chipset at the heart of the domes allows some third party applications to run onboard the domes and Intelligent Video Analytics (IVA), such as defocus and tampering detection, as well as directional, intrusion, motion and enter/exit detection, are provided as standard.

WiseStream II

Multiple streaming is supported with the choice of H.265, H.264 or MJPEG compression, whilst the new domes’ bandwidth friendly credentials are enhanced by WiseStream II, a complementary compression technology which dynamically controls encoding, balancing quality and compression, according to movement in the image. Bandwidth efficiency is improved by up to 99 pr cent it is claimed compared to current H.264 compression when WiseStream II is combined with H.265 compression. As such, WiseStream II reduces the total cost of ownership of a video surveillance system by minimising the storage and bandwidth requirements of high definition cameras.

The products also feature ‘Hallway View’ which provides a way to monitor narrow vertical areas such as shopping aisles and corridors. It enables cameras, which can generate images in the 9:16 and 3:4 aspect ratios, to work effectively in tall and narrow spaces, with the added bonus of minimising bandwidth and video storage requirements. A MicroSD/SDHC/SDXC memory slot allows up to 128GB of video or data to be stored at the edge.

Power over Ethernet (PoE) support negates the need to install separate power supplies and cabling for each dome. The products are compliant with ONVIF, the US-based standardisation initiative for IP-based physical security products which seeks inter-operability of different manufacturers’ devices operating simultaneously as part of a single system.

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