2024 年 7 月 27 日
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Security Hong Kong Ltd- 香港防盜 | 傑成系統 – Securityhk.com

DAHUA IPC-HDBW8841H-Z4-LB

8MP WizMind Classroom Network Camera

> 8-MP 1/1.8″ CMOS image sensor, low luminance, and high definition image.

> Outputs max. 8 MP (3840 × 2160)@25/30 fps.

> Supports Classroom Behavior Analysis, including detection of abnormal number of people (for tracking teachers), standing, writing on the blackboard, back turned to students, head up, and walking.

> Supports Exam Behavior Analysis, including detection of students looking around and passing objects between each other.

> Sound Management: With its built-in dual MICs and Dahua noise reduction algorithms, the camera supports the sound management function, using it to collect vocals in the classroom, adaptively reduce noise, and filter non-human voices.

> Built-in Hi-Fi large-diameter speaker covers an auditory range of 30 meters when used indoors.

> Supports two-way talk.

> Alarm: 3 in, 2 out; audio: 1 in, 1 out; built-in dual MICs, RS-485, BNC; supports max. 256 G Micro SD card.

> 24 VAC/12 VDC/PoE power supply, 12 VDC power output, and max. current 165 mA, easy for installation.

> 5 streams for 3-channel HD video display.

> IP67 and IK10 protection.

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描述

DAHUA IPC-HDBW8841H-Z4-LB

8MP WizMind Classroom Network Camera

Specifications

Camera
Image Sensor1/1.8″ CMOS
Max. Resolution3840 (H) × 2160 (V)
ROM4GB
RAM4GB
Scanning SystemProgressive
Electronic Shutter SpeedAuto/Manual 1/3 s–1/100,000 s
Min. Illumination0.005 lux@F1.6 (Color,30 IRE)
0.0005 lux@F1.6 (B/W,30 IRE)
0 lux (Illuminator on)
S/N Ratio>56 dB
Illumination Distance80 m (IR LED)
Illuminator On/Off ControlAuto
Illuminator Number3 (IR LED)
Pan/Tilt/Rotation RangePan: 0°–355°
Tilt: 0°–80°
Rotation: 0°–355°
Lens
Lens TypeMotorized vari-focal
Lens MountModule
Focal Length8 mm–32 mm
Max. ApertureF1.6(Constant aperture)
Field of ViewHorizontal: 42°(W)–15°(T)
Vertical: 23°(W)–9°(T)
Diagonal: 48°(W)–17°(T)
Iris ControlAuto
Close Focus Distance1.5m(4.9 ft)
DORI DistanceLensDetectObserveRecognizeIdentify
W213.6 m (700.79 ft)85.4 m

(280.18 ft)

42.7 m

(140.09 ft)

21.4 m

(70.21 ft)

T572.8 m (1879.27 ft)160 m (524.93 ft)80 m

(262.47 ft)

57.3 m

(187.99 ft)

Intelligence
Classroom Behavior AnalysisSupports student mode and teacher mode.
Student mode:
Head up detection, standing detection, heads up people counting, and close-up of standing students.
Teacher mode:
It offers abnormal number of people detection (for tracking teachers), back turned to students detection, walking detection, writing on blackboard detection, and performs face comparison of teachers.
Exam Behavior AnalysisSuport looking around and passing object detection
Face RecognitionFace recognition, track, priority, snapshot, face enhancement, face exposure
Face attribute extract, 6 attributes and 8 expressions: Gender, age, glasses, expressions (anger, sadness, disgust, fear, surprise, calm, happiness and confusion), mask, beard
Face matting setting: face, single inch photo
Two snapshot strategies: priority snapshot, recognition
Face angle filter
Priority time setting
Management of 5 group face libraries
Single person register and person register in batch
Face recognition and similarity setting
Max supports face contrast in face library with 100,000 faces
Support Duration Optimal
Smart SearchWork together with Smart NVR to perform refine intelligent search, event extraction and merging to event videos
Video
Video CompressionH.265; H.264; H.264H; H.264B; MJPEG (Only supported by the sub stream)
Smart CodecSmart H.265+; Smart H.264+
Video Frame RateMain stream: 3840 × 2160@(1–25/30 fps )
sub stream 1: 1920 × 1080@(1–25/30 fps )
sub stream 2: 1920 × 1080@(1–25/30 fps )
sub stream 3: 1920 × 1080@(1–25/30 fps )
sub stream 4: 704 × 576 @(1–25/30 fps )
Stream Capability5 streams
Resolution8M (3840 × 2160); 4M (2688 × 1520); 3M (2048 × 1536); 1080p (1920 × 1080); 720p (1280 × 720); D1 (704 × 576/704 × 480); CIF (352 × 288/352 × 240)
Bit Rate ControlCBR/VBR
Video Bit RateH.264: 32 kbps–10240 kbps;
H.265: 12 kbps–10240 kbps
Day/NightAuto(ICR)/Color/B/W
BLCYes
HLCYes
WDR120 dB
Scene Self-adaptation (SSA)Yes
White BalanceAuto; natural; street lamp; outdoor; manual; regional custom
Gain ControlAuto
Noise Reduction3D NR
Motion DetectionOFF/ON(4 areas,rectangular)
Region of Interest (RoI)Yes (4 areas)
DefogYes
Image Rotation0°/90°/180°/270° (Support 90°/270° with 2688 × 1520 resolution and lower)
MirrorYes
Privacy Masking4 areas
Audio
Built-in MICYes
Built-in SpeakerYes
Audio CompressionG.711a;G.711Mu;G.726;G.723;PCM
Alarm
Alarm EventNo SD card; SD card full; SD card error; network disconnection; IP conflict; illegal access; motion detection; video tampering; scene changing; audio exception; voltage detection; defocus detection; external alarm;face recognition; abnormal number of people detection; stand detection; walking detection; back detection; blackboard writing detection; head up detection;Exam Behavior detection
Network
Network PortRJ-45 (10/100/1000 Base-T)
SDK and APIYes
Cyber SecurityVideo encryption; firmware encryption; configuration encryption; Digest; WSSE; account lockout; security logs; IP/MAC filtering; generation and importing of X.509 certification; syslog; HTTPS; 802.1x; trusted boot; trusted execution; trusted upgrade
Network ProtocolIPv4; IPv6; HTTP;TCP; UDP; ARP; RTP; RTSP; RTCP; RTMP; SMTP; FTP; SFTP; DHCP; DNS; DDNS; QoS; UPnP; NTP; Multicast; ICMP; IGMP; NFS; SAMBA; PPPoE; SNMP
InteroperabilityONVIF (Profile S/Profile G//Profile T); CGI; Milestone
User/Host20
StorageFTP; SFTP; Micro SD card (support max. 256 GB); NAS
BrowserIE: IE 9 and later
Chrome: 42 and later
Firefox: 48.0.2 and late
Management SoftwareDH-RBS8204AM-I
Mobile ClientiOS;Android
Certification
CertificationsCE-LVD:EN62368-1;
CE-EMC:Electromagnetic Compatibility Directive 2014/30/EU;
FCC:47 CFR FCC Part 15, Subpart B;
FCC ID:FCC PART 15C
Port
RS-4851 (baud rate range:1200 bps–115200 bps)
Audio Input1 channel (RCA port)
Audio Output1 channel (RCA port)
Alarm Input3 channels in: 5mA 3V–5V DC
Alarm Output2 channels out: 1,000mA 30V DC/500mA 50V AC
Power
Power Supply12 VDC/24 VAC/PoE
Power ConsumptionBasic: 8.86 W (12 VDC); 8.5 W (24 VAC); 8.64 w(PoE)
Max. (IR on + ICR + Intelligence): 17.9 W (12 VDC); 15.9 W (24 VAC); 15.8 W (PoE)
Environment
Operating Temperature–30 °C to +60 °C (–22 °F to +140 °F)
Operating Humidity≤95%
Storage Temperature–40 °C to +60 °C (–40°F to +140°F)
ProtectionIP67; IK10
Structure
CasingMetal + plastic
Product Dimensions129.1 mm × Φ157.9 mm (5.08″× Φ6.22″)
Net Weight1.5 kg (3.31 lb)
Gross Weight1.6 kg (3.53 lb)

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