Introduction to Intrusion Detection

Components and Devices in the Intrusion Detection Part of an Integrated Security System

  1. Control Panel: The central hub that monitors signals from all sensors and devices, assesses them, and decides when to send an alarm. It’s the brain of the intrusion detection system.

  2. Door and Window Sensors: These sensors are attached to doors and windows and alert the system when these points are opened or tampered with, indicating a possible intrusion.

  3. Motion Detectors: Devices that sense movement within a specified area. They can be configured to ignore small pets to reduce false alarms and are essential for protecting open spaces.

  4. Glass Break Detectors: These sensors listen for the frequency of breaking glass and trigger an alarm when detected. They are crucial near glass doors and windows.

  5. Shock Sensors: Also known as vibration detectors, these sensors can detect an attempted forced entry through doors, windows, or walls by sensing vibrations.

  6. Passive Infrared Sensors (PIRs): Detect changes in heat and movement in the environment, commonly used for motion detection in areas of interest.

  7. Microwave Detectors: Use microwave pulses to detect motion through the emission of waves, suitable for covering large open spaces.

  8. Dual Technology Sensors: Combine two different detection technologies, such as microwave and passive infrared, to reduce false alarms by requiring both sensors to trigger before sending an alarm.

  9. Keypads: Allow authorized users to arm or disarm the system manually, typically requiring a code or, in more advanced systems, a biometric identifier.

  10. Panic Buttons: These can be strategically placed or carried by individuals. When pressed, they immediately alert the system to a security emergency.

  11. Alarm Sirens: Produce a loud noise to alert nearby individuals of an intrusion and deter intruders from proceeding further.

  12. Strobe Lights: Serve as a visual alert to accompany the alarm sirens, increasing the visibility of the alert to occupants and authorities.

  13. Wireless or Wired Contacts: These form the connection between doors/windows and the control panel. They can be wired directly or connected via wireless technology for flexibility in installation.

  14. Environmental Sensors: While not strictly for intrusion detection, they can detect environmental anomalies like smoke, fire, or water leaks that could indicate or result from an intrusion.

Each of these components plays a vital role in the comprehensive security posture of a business, ensuring that any unauthorized access or attempt is detected, reported, and addressed promptly.