Intrusion Detection System

Description and Purpose

Intrusion Detection systems sense a number of events that indicate unauthorized entry into a facility during times when no one should be present.

In today’s facility, it is typical to include door/window position sensors, motion detectors, glassbreak detection, and panic buttons.

Figure 1: Typical Intrusion Detection System

Solving Intrusion Issues

There are a number of critical issues that are solved with an intrusion detection system.

Unauthorized entry through doors: Intruders can open a door in many ways, including using prying tools, torches, or even an issued key to the lock. No matter how the door is opened, the door position sensor detects the opening and reports its status to the control panel for processing.

Protecting Glass Windows: Entry by breaking glass windows is a common method of unauthorized entry into a facility. Glassbreak detectors sense the sound of breaking glass, and then activate the alarm condition while the intruder is still outside, often thwarting the attempt. Finding glass break detectors that successfully sense glass breakage from different types of glass like Tempered, Laminated, Coated, Wired, Plate, and others is no longer a challenge. Honeywell offers the most effective glass break sensor for all types of glass.

Unauthorized entry through walls and roofs: Some unauthorized entries are achieved by cutting through walls and facility roofs. Motion detectors sense movement within protected rooms and departments of the building. While the Intrusion Detection System is armed, an activated motion detector causes a local alarm and sends a message to a central monitoring station.

Crisis during work hours: When intruders arrive during business hours, employees are often inhibited from using the telephone to call authorities. A panic button allows for a discrete, undetected method of calling for help. You can locate a panic button below counters and desktops to provide users with an easy, yet subtle method of notifying the authorities. You can be very specific as to who shall respond to a panic situation, and you can have many panic buttons for many purposes. See the Panic Alarm application for more information.

Where to use Intrusion Detection Systems

There are many facility types that include intrusion detection systems in the building systems. Some examples of these facilities include cash payment centers, banks, retail stores, laboratories, pharmacies, and public processing centers.

Intrusion detection sensors are also used in energy management applications.