CCTV

📹 CCTV Systems – Overview

CCTV (Closed-Circuit Television) is a video surveillance system used to monitor and record activities in real-time for security, safety, and evidence purposes. It’s widely used in homes, offices, retail stores, factories, public areas, and government buildings.

🛠️ Types of CCTV Cameras

1. Dome Cameras

   • Indoor use

   • Vandal-resistant, discreet design

   • 360° coverage (in PTZ models)

2. Bullet Cameras

   • Outdoor use

   • Long-range viewing

   • Weatherproof casing

3. PTZ Cameras (Pan-Tilt-Zoom)

   • Remote directional and zoom control

   • Ideal for large areas like stadiums, parking lots

4. IP Cameras (Network Cameras)

   • Use the internet to transmit footage

   • Higher resolution and remote access via mobile

5. Analog Cameras

   • Traditional system using coaxial cables

   • Lower resolution compared to IP

6. Thermal Cameras

   • Detect heat signatures

   • Used in high-security zones or low-light environments

7. Hidden/Spy Cameras

   • Concealed for discreet monitoring

   • Used in ATMs, undercover surveillance

🎯 Key Components of a CCTV System

• Cameras – Capture video footage

• DVR/NVR

  • DVR (Digital Video Recorder) – For analog cameras

  • NVR (Network Video Recorder) – For IP cameras

• Monitors – Display live feeds

• Cables/Connectors – Coaxial, Ethernet, power cables

• Power Supply – Centralized or individual camera power adapters

• Storage Devices – Hard disks (1TB to 8TB+) for video recording

🔐 Features to Look For

• Night Vision (IR LEDs)

• Motion Detection

• Two-way Audio

• Remote Viewing via Mobile App

• Cloud Storage/Backup

• Smart AI Features (Face Recognition, Intrusion Detection)

• Wide Dynamic Range (WDR)

✅ Benefits of CCTV

• Crime Deterrence & Prevention

• Real-time Monitoring & Alerts

• Evidence Collection

• Employee & Public Safety

• Remote Accessibility

• Insurance Claim Support