Dahua NVR5864-XI – 64 Channel WizMind AI Network Video Recorder (2U, 8 HDD Bays)
Unless selecting a vari-focal camera (with an adjustable lens) It is important to select the correct camera lens option for where the camera is to be positioned. A smaller lens will give you a wider angle but will be "zoomed out more", while a bigger lens will narrow the angle down and "zoom in more". See below to give you some idea on angles of Megapixel HD Cameras:
| Lens in mm | Approx Viewing Angle (degrees) | Ideal Distance (metres) | Typical usage/notes |
|---|---|---|---|
| 2.8 | 106 | <6 | For seeing as much of the immediate area as possible such as above a doorway/low down/garage soffits (edges can appear slightly warped/distorted) - clearly "zoomed out" |
| 3.6/4 | 83-90 | <12 | A great general purpose option giving great coverage still in the corner of a room or higher up on second floor soffits with less distortion - more of a natural "zoom" |
| 6 | 56 | 6-20 | Narrows down the angle and zooms in to look past the immediate area a little to gain more detail - down a driveway for example from higher up |
| 12 | 24 | 20+ | Zooms in significantly more to look at a gate, entrance or adjascent building |
| 16 | 19 | 24+ | As above but more so |
The amount of hard drive space you require is dictated by how many cameras, as well as their resolution and frame rate settings. Finally you can often make your storage space last a lot longer by enabling motion detected recording rather than continuous, especially if there are long periods of no activity.
|
Resolution (Megapixels) |
Days of storage provided by 1TB per camera (continuous - full 25 frames per second) |
Days of storage provided by 1TB per 4 cameras (continuous - full 25 frames per second) |
Days of storage provided by 1TB per 4 cameras (50% motion- 15 frames per second) |
|---|---|---|---|
| 1 | 44 | 11 | 36 |
| 2 | 22 | 5 | 18 |
| 3 | 17 | 4 | 14 |
| 4 | 11 | 3 | 9 |
| 5 | 9 | 2 | 8 |
| 6 | 8 | 2 | 6 |
| 8 (4K) | 5 | 1 | 4 |
| 12 | 4 | 0.5 | 3 |
As a rule of thumb we recommend a minimum of 2 Terabytes per 4 x 2-4MP HD cameras, as this should give you 2 weeks to a month with a few adjustments on motion detected recording. You may only require the full 25 frames per second on certain cameras if things are fast moving.
(All of our hard drives come fitted and are CCTV specific from one of the major brands)
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Dahua NVR5864-XI – 64 Channel WizMind AI Network Video Recorder (2U, 8 HDD Bays)
The Dahua NVR5864-XI is a high-performance enterprise network video recorder from Dahua’s WizMind Series, engineered for large and complex surveillance environments requiring intelligent analytics, extensive storage capacity, and exceptional processing power. Supporting up to 64 IP camera channels, the recorder accommodates ultra-high-definition cameras with resolutions up to 32MP, providing crystal-clear video quality for detailed monitoring and forensic investigations. Its powerful hardware platform delivers up to 768 Mbps incoming bandwidth, ensuring stable recording and management of multiple high-resolution video streams simultaneously. Powered by Dahua’s advanced AI technology, the NVR5864-XI offers a comprehensive suite of intelligent video analytics including face detection and recognition, perimeter protection, Smart Motion Detection Plus (SMD Plus), AcuPick intelligent search, video metadata analysis, and automatic number plate recognition (ANPR) through compatible AI cameras. These intelligent functions significantly reduce false alarms and accelerate event retrieval. The recorder features 8 SATA HDD bays, each supporting up to 20TB, providing substantial storage capacity for long-term video retention. Support for RAID 0/1/5/6/10 ensures enhanced data protection and system reliability, while iSCSI storage expansion allows additional network-based storage scalability.
KEY FEATURES
- Supports up to 64 IP camera channels
- Compatible with cameras up to 32MP resolution
- WizMind AI deep-learning technology
- Face detection and face recognition
- AcuPick intelligent video search
- Smart Motion Detection Plus (SMD Plus)
- Perimeter protection with AI classification
- Video metadata analysis
- ANPR support via compatible AI cameras
- Up to 768 Mbps incoming bandwidth
- High-performance multi-channel decoding
- Smart H.265+, H.265, Smart H.264+, H.264 compression
- 8 SATA HDD bays supporting up to 20TB per drive
- RAID 0/1/5/6/10 support
- iSCSI storage expansion
- Dual HDMI and dual VGA video outputs
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