Key Components of a CCTV System
1. Cameras
- Analog cameras – traditional, used with DVRs.
- IP cameras – digital, higher-resolution, used with NVRs.
- Types include dome, bullet, PTZ (pan-tilt-zoom), fisheye, and thermal cameras.
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2. Recording Devices
- DVR (Digital Video Recorder): works with analog cameras.
- NVR (Network Video Recorder): works with IP cameras.
3. Storage
- Hard drives, cloud storage, or hybrid systems.
4. Transmission
- Wired (Coaxial, Ethernet)
- Wireless (Wi-Fi, point-to-point antennas)
5. Display & Monitoring
- Monitors, mobile apps, or remote viewing platforms.
What CCTV Systems Are Used For
- Crime prevention and deterrence
- Monitoring homes and businesses
- Workplace safety & compliance
- Traffic and public area surveillance
- Evidence collection for investigations
- Remote management of properties
Benefits of CCTV
- Increased security
- Real-time monitoring
- High-quality video evidence
- Remote access through phones or computers
- Lower insurance costs in some cases
Modern CCTV Features
- Night vision / infrared
- Motion detection
- Face and object recognition (AI-enabled)
- Smart alerts (notifications)
- 4K and even 8K resolution
- Cloud backup
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