New Dahua NVRs Feature Smart H.265+ to Save Bandwidth and Storage

The Dahua N42, N52 and N54 model NVRs also have a higher number of PoE ports than their predecessors.

IRVINE, Calif. — Dahua Technology USA introduces three new network video recorders (NVRs) to provide a more expansive feature set within their Lite Series and Pro Series product families.

The N42, N52 and N54 models have a higher number of PoE ports than their predecessors and support the industry’s latest compression codec — Smart H.265+, Dahua’s optimization of the H.265 codec.

Using four different technologies to limit the recording of useless or unimportant data whenever possible, Smart H.265+ saves up to 80% on bandwidth and storage compared to standard H.264, according to the company.

“As video surveillance systems grow in megapixels, Dahua is working to reduce network strain and lower the high cost of storage,” says Jennifer Hackenburg, senior product marketing manager, Dahua USA. “Smart H.265+ accomplishes both of these things. It is a great benefit to customers, and we’re pleased to introduce this technology in our Lite and Pro Series NVRs.”

Dahua also offers ONVIF-conformant NVRs designed for flexibility, ease of use and reliability. The NVRs auto-detect Dahua cameras and have a single cable connection, meaning they do not need a separate power supply, according to the company.

The NVRs can be ordered with hard drives for plug-and-play functionality or without hard drives for greater customization. Integrated PoE ports improve network security, due to the fact that each camera has its own isolated IP input.

Automatic Network Replenishment (ANR) guards against lost data — in the case of a network outage, the camera records to the local SD card and automatically transfers this footage back to the NVR once the network is restored.

Below are additional features of the NVRs as stated in a Dahua press release:

Dahua NVRs also improve the efficiency of a video surveillance system, boasting functions such as Smart Search, which allows for fast and easy review of recorded data.

When paired with cameras that have Intelligent Video System (IVS) analytics, the NVRs provide a tripwire feature, detection of abandoned or missing objects, and face detection. After faces are detected in the live video stream, the images are captured as thumbnails and a searchable database is created.

The new N42 NVRs, part of the competitively-priced Lite Series, include 4-, 8-, and 16-channel models that decode up to 8MP resolution on each channel with a maximum incoming bandwidth of 200 Mbps. They support auto-tracking, people counting, and heat mapping, the first time Dahua has introduced such functions in the Lite Series.

The highlights of the new N52 and N54 models, in the feature-rich Pro Series, are 24 PoE ports and the ability to decode up to 12MP on each channel, with a maximum incoming bandwidth of 320 Mbps. These Pro Series NVRs support recording four (4) channels at 8MP and 16 channels at 2MP. They are especially well-suited for panoramic and PTZ cameras, with a customized live view layout for panoramic displays and 3D intelligent positioning for Dahua PTZs.

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