In context to perimeter protection, here are some of the common terms you would come across:
Alarm: In automatic control systems, an alarm is a message received by a human operator or the user indicating that a certain condition has been reached, or that a protective measure must be taken to avoid system malfunction or damaging machine parts.
Alarm transmission equipment (ATE): Alarm transmission equipment (ATE) receives and forwards messages from the alarm receiving device to the GSM multi-line switchboard, Internet protocol-based communication systems, electronic interfaces or other devices and systems indicating the occurrence of an event at the protected facility.
Alarm verification: Alarm Verification is an active process of finding out if an alarm message is real or false. Alarm messages may be either fault or event messages.
Deceitful alarm: Deceitful alarm is an inappropriate activation of the alarm system caused by an error or defect of its system. If this occurs, there is no imminent danger to human safety.
Energy supply: The Energy supply is an autonomous electrical device that produces and distributes electric energy to other components (e.g. detectors, circuit breakers) of the alarm system.
Intruder alarm system (IAS): The IAS is an alarm system that detects and signals the presence of intruders into a surveillance area through radio frequency (RF) signals while monitoring the movement of objects. Once an intruder is detected, the IAS can automatically trigger other devices, such as lights and sounders, to create an alarm situation in order to catch the intruders.
Intruder control and indicating equipment (I-CIE): A complete intruder control and indicating equipment (I-CIE) system is a combination of individual components that work together to protect a premise from forced entry, sabotage and other forms of intrusions.
Intruder detector: The intrusion detector is the main component of an intruder alarm system. The basic function of the detector is to monitor a suitable physical parameter for suspects or intrusions within the surveillance area, either constantly or at consecutive intervals.
Message: A message is a notification informing the receiver of the existence of an event or situation. This can be done in three different ways: by using the alarm, a message, or via a fire alarm system.
Nuisance Alarm Rate (NAR): The NAR shows how often a system sends unnecessary alarms to the monitoring center – including false alarms, alarm events that are not actual emergencies, and alarm events that are technically false but reported by users.
Perimeter alarm: A perimeter alarm is a type of alarm used to find if an intruder has breached the security of an area. Two-stage perimeter alarm uses a combination of heat detection sensors and infrared beams to protect against break-ins or sabotage.
Probability of Detection (POD): The Probability of Detection (POD) is a well-known method used to evaluate the effectiveness of an alarm system. Its derivation is based on the inherent background risks of a structure and the false alarm rate. In short, POD is the probability that if an incident occurs, it will be declared as such.
Risk management system: The risk management system allows you to set up, operate and control an industrial security system. This software solution for safety offers full integration of all safety-relevant reportable objects in one common database.
Tamper signal: A detectable change in an object caused by its unauthorized intrusion, theft or removal from the premises.
Security object: Security objects are used throughout the defined perimeter to secure assets, protect areas of critical infrastructure, and safeguard personnel from potential harm.
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