INTRUSION DETECTION
Intrusion detection aims to protect people, property and assets against robbery, attacks or sabotage. As attacks become more sophisticated, so do the systems available to prevent them or and raise the alarm.
SIEMENS: INTRUSION Products & Accessories
MAKE INTRUDERS THINK TWICE
Intruder alarm systems are at the heart of out-of-hours security measures deployed by householders and businesses: not only can they act as a deterrent, but they will also provide a warning that an intrusion is taking place either to staff, a remote monitoring centre or passers by.
The focus of alarm systems has moved from one of prevention to one of deterrent and even beyond that where damage limitation is considered key. This is particularly true for commercial applications, and more and more so for home security. The current thinking is very much based on limiting the time an intruder has in a property. This increases the importance of response times (a key factor in the increased take-up of remote monitoring), as well as highlighting the role of corrective actions e.g. if someone breaks in through a window while the premises are shut, how quickly can the window be replaced to re-secure the building? These factors are of significant interest to insurance companies who are understandably equally keen on damage limitation and corrective actions.
SUMMONING POLICE RESPONSE AND INTERVENTION (MONITORED ALARM SYSTEMS)
Alarms connected to a monitoring service are the most effective and are usually a requirement of insurance companies providing cover. Opting for a remotely monitored alarm, where activation signals are sent to a monitoring centre, ensures the police are contacted immediately in the event of a confirmed activation. Signals are filtered for false activations, thus avoiding the risk of losing police response to an alarm.
INTRUDER DETECTION: THE CHALLENGE OF FALSE ALARMS
With intervention or police response potentially a costly affair in the event of false alarms, technological developments have focused on limiting the risk of false activations. The primary area lies with the devices triggering the alarms. Siemens motion detectors are specifically designed to deliver the highest detection rate and false alarm immunity, including in environments with fast changing light or temperature conditions.
EFFECTIVE INTERVENTION MANAGEMENT WITH ALARM CONFIRMATION / VERIFICATION
Another area of development aimed at reducing false alarms is the advance in alarm verification and transmission technologies. Audio and video verification devices (microphone / speakers and cameras for example) are linked to detectors in pre-defined verification zones, enabling for direct contact to be established quickly in case of an alarm. Further technology developments also allow for alarm actuation scenarios to be programmed, ensuring that only certain sequences of events (e.g. with more than one detector activating within a given time frame) are responded to as being true alarms.
DETECTOR ACTIVATED REMOTE MONITORING SURVEILLANCE SYSTEMS (USE OF CCTV)
Integration of video surveillance to intruder detection systems brings further benefits, not just in terms of alarm verification, but also in terms of deterring or even prosecuting intruders. The Sintony 410 system is compatible with SISTORE digital video surveillance systems, enabling a more effective alarm management by e.g. live remote viewing of cameras positioned in the alarm zone, and CCTV recording for evidential purposes.
In the end, intruder alarm systems need to be designed with the needs of the business or home in mind and should take into account the usage of the premises whilst remaining effective and user friendly. The quality of the installation and maintenance service plays therefore an essential part in the effectiveness of the overall security for commercial or residential premises.
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