دوربین مداربسته IP داهوا HFW2831T-ZS-S2

Camera

Image Sensor

1/2.7” 8Megapixel progressive CMOS

Max. Resolution

3840 (H) × 2160 (V)

ROM

128 MB

RAM

256 MB

Scanning System

Progressive

Electronic Shutter Speed

Auto/Manual 1/3 s–1/100,000 s

Min. Illumination

0.008 Lux@F1.5

S/N Ratio

>56 dB

Illumination Distance

60 m (196.85 ft)

Illuminator On/Off Control

Auto/Manual

Illuminator Number

4 (IR LED)

Pan/Tilt/Rotation Range

Pan: 0°–360°

Tilt: 0°–90°

Rotation: 0°–360°

Lens

Lens Type

Motorized vari-focal

Mount Type

φ14

Focal Length

2.7 mm–13.5 mm

Max. Aperture

F1.5

Field of View

Horizontal: 113°–31°

Vertical: 58°–17°

Diagonal: 138°–36°

Iris Type

Fixed

Close Focus Distance

0.8 m–0.8 m (2.62 ft–2.62 ft)

DORI Distance

Lens

Detect

Observe

Recognize

Identify

W

85.3 m

(279.9 ft)

34.1 m

(111.9 ft)

17 m

(55.8 ft)

8.5 m

(27.9 ft)

T

280 m

(918.6 ft)

112 m

(367.5 ft)

56 m

(183.7 ft)

28 m

(91.9 ft)

Smart Event

IVS

Tripwire; intrusion

Video

Video Compression

H.265; H.264; H.264B; MJPEG (only supported by the sub stream)

Smart Codec

Smart H.265+/ Smart H.264+

Video Frame Rate

Main stream:

3840 × 2160 (1 fps–15 fps)

2688 × 1520 (1 fps–25/30 fps)

Sub stream:

704 × 576 (1 fps–25 fps)

704 × 480 (1 fps–30 fps)

Stream Capability

2 streams

Resolution

3840 × 2160 (3840 × 2160); 3072 × 2048 (3072 × 2048); 3072 ×1728 (3072 × 1728); 2592 × 1944 (2592 × 1944); 2688 × 1520 (2688 × 1520); 3M (2048 × 1536); 2304 × 1296 (2304 × 1296); 1080p (1920 × 1080); 1.3M (1280 × 960); 720p (1280 × 720); D1 (704 × 576/704 × 480); VGA (640 × 480); CIF (352 × 288/352 × 240)

Bit Rate Control

CBR/VBR

Video Bit Rate

H.264: 32 kbps–8192 kbps

H.265: 12 kbps–8192 kbps

Day/Night

Auto(ICR)/Color/B/W

BLC

Yes

HLC

Yes

WDR

120 dB

White Balance

Auto/natural/street lamp/outdoor/manual/regional custom

Gain Control

Auto/Manual

Noise Reduction

3D NR

Motion Detection

OFF/ON (4 areas, rectangular)

Region of Interest(RoI)

Yes (4 areas)

Smart Illumination

Yes

Image Rotation

0°/90°/180°/270° (Supports 90°/270° with 2688 × 1520 resolution and lower.)

Mirror

Yes

Privacy Masking

4 areas