Burglar Alarm system is a device that detects unauthorized entry into a building or other areas. It is the most popular name of this device and finds purpose in both residential, commercial, industrial, and military properties for protection against burglary or property damage. It can also be used for personal protection against intruders. Intruder alarms in residential areas show a correlation with decreased theft. Car alarms likewise help protect vehicles and their contents.
Security alarm system serves a single purpose of burglary protection. It combines with other devices to provide both fire and intrusion protection. Burglar alarm systems may also combine with closed-circuit television (CCTV) camera systems to automatically record the activities of intruders. It can interface with access control systems to support electrically locked doors. Burglar alarm systems range from small, self-contained noisemakers to complicated, multiarea systems with computer monitoring and control. It may even include two-way voice which allows communication between the monitoring station and control panel.
Types of Burglar Alarm System
There are many different types of burglar alarms, with selection depending on personal preference, location, building size, level of protection required, monitoring, the method of response, etc. They are as follows:
- Wired Security Alarm System and
- Wireless Security Alarm System
Unlike wireless security alarms that are very easy to install, wired security alarms generally need a professional installer.
Classes of Burglar Alarm System
Burglar alarm systems can be “bells only”, “speech-dialler” or “monitored” alarms.
Once there is a trigger especially when it detects an intruder, it makes a loud noise. This alerts nearby people to a potential intruder and scares off the intruder. Unlike monitored or speech dialler alarms, there is no guarantee that any form of assistance will come. This is commonplace in most cities because people often ignore alarms.
Speech dialler or ‘text alert’ system:
This system calls or sends a text message keyholder’s phone numbers. The ‘keyholders’ may then take action, either investigating themselves or notifying another respondent. They then may be able to remotely access CCTV cameras or microphones within the premises to monitor the situation and determine what sort of response is appropriate.
Monitored Alarm system:
Most security alarms come with a monitoring service. Monitored systems are those where a private company watches your security alarm system 24/7. In the event of an alarm, the premises control panel contacts a central monitoring station. Operators at the dedicated monitoring station see the signal and take appropriate action, such as contacting property owners, notifying police, or dispatching private security forces. Operators usually use dedicated alarm circuits, telephone lines, or the internet to transmit such signals. The best security comes from monitored systems because their vigilance is constant.
Components of Burglar Alarm System
The most basic burglar alarm system consists of one or more sensors to detect intruders, and an alerting device to announce the intrusion. However, a typical premises security alarm system employs the following components:
Alarm Control Panel (ACP):
This is the “brainbox” of the system. It reads sensor inputs, tracks arm/disarm status, and signals intrusions. Today, this is typically one or more computer circuit boards inside a metal enclosure, along with a utility supply.
These are devices which detect intrusions. They are always within the perimeter of the protected area. They can detect intruders by a variety of methods, such as monitoring doors and windows for opening, or by monitoring unoccupied interiors for vibration, motions, sound, or other disturbances.
Interconnections between components:
These may consist of direct wirings to the control unit or wireless links with local power supplies.
These are small devices, typically wall-mounted, which function as the human-machine interface to the alarm system. In addition to buttons, keypads typically feature indicator lights, a small multi-character display, or both.
These signify an alarm situation. Most commonly, these are bells, sirens, and/or flashing lights. They serve the dual purposes of warning occupants of intrusion and potentially scaring off burglars (thieves).