Detector with anti-cloak technology

February 2003 Perimeter Security, Alarms & Intruder Detection

It has been acknowledged in the security industry that it is possible for an intruder to sufficiently mask himself from the installed motion detector, using camouflage techniques, so that the detector does not identify him as a burglar because it does not detect his infrared radiation.

According to Sesco Security, local distributors of Rokonet products, even when using sophisticated dual technology detectors with both PIR and microwave sensors, there have been many instances when the detectors involved in burglaries do not make a detection. This occurs when the detector is not sensitive enough or intruders have been able to sufficiently mask themselves to avoid detection.

In order to address this issue, Rokonet has developed a new, patented technology called ACT (Anti-Cloak Technology) that has been incorporated into the iWISE Dual Technology motion detector. ACT is a technology breakthrough exclusive to the iWISE detector series.

The technology has been designed specifically for commercial, industrial and institutional installations and is also suitable for up-market residential applications.

ACT will cope with any attempt by a burglar using camouflage techniques to conceal his IR radiation by utilising unique pattern-recognition algorithms within the microprocessor and automatically switch the detector to trigger alarms based on detection from the microwave channel for a predetermined time only.

The method used for identifying a cloaking attempt and making the decision to switch to microwave single channel triggering is described as follows:

A moving, cloaked intruder emits a very weak infrared signal that has a characteristic shape and frequency. ACT uses unique pattern recognition algorithms in the microprocessor that disregard the signal strength and concentrate on the shape and frequency of the signal. After verifying that the pattern of the signal matches that of an intruder and that microwave detection is also present, ACT switches to microwave triggering of alarms for a predetermined period.

The iWISE consists of a powerful microcontroller with advanced digital processing. This enables the innovative pattern recognition algorithms and the quality performance of the iWISE.

Some installations have inherent severe thermal interference or motion sources. Environments that may have hot spots, air drifts, moving objects with high temperatures, or simply described as harsh environments, require a QUAD PIR sensor. In these cases the iWISE DT QUAD is the preferred solution.

The innovative Anti-Cloak Technology enables customers to benefit from both capabilities: dual technology's immunity to false alarms, together with the higher detection ability of the microwave channel.

Benefits of the iWISE DT series include:

* IWISE DT and iWISE DT Quad available.

* 15 m range.

* Flexible mounting height from 2,1 to 3 m.

* Wall/corner or ceiling mount swivel (optional).

* Wall mount swivel with back tamper for high level of security.

* Separate LEDs for better understanding the channels performance while performing a walk test.

For more information contact Douglas Luscombe, Sesco Security, 031 303 4022.

Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Intruder detection is becoming smarter and more mobile
May 2019, Elvey Security Technologies , Regal Distributors SA , Editor's Choice, Perimeter Security, Alarms & Intruder Detection
Alongside the new technologies continually being developed, existing technologies are being co-opted into not only performing an intrusion detection role, but combatting that bane of the electronic security industry: false alarms.

Effective intruder detection: more important than ever
May 2019, Powell Tronics , Perimeter Security, Alarms & Intruder Detection, Products
While intruder detection systems abound, not all solutions are created equal. Ensuring that their intruder detection system is with them for the long haul is something that all end-users desire.

Outdoor sensor with anti-masking
May 2019, HiTek Security Distributors , Perimeter Security, Alarms & Intruder Detection
The Viper, made by Duevi, is an exterior sensor integrating technologies such as active anti-masking, Redsense digital analysis algorithm and a simple walk-test mode.

HD PIR camera with strobe light
May 2019, Hikvision South Africa , Perimeter Security, Alarms & Intruder Detection, CCTV, Surveillance & Remote Monitoring
Hikvision’s Turbo HD passive infrared (PIR) camera uses advanced video surveillance technologies to capture infrared light given off by human bodies.

Intelligent ceiling detector
May 2019, Regal Distributors SA , Perimeter Security, Alarms & Intruder Detection, Products, Agriculture (Industry)
The RISCO Industrial LuNAR Grade 3 is an intelligent ceiling detector with bidirectional remote control, a mounting height of up to 8,6 m and a coverage area of up to 18 m in diameter.

Outdoor detector with low false alarm rate
May 2019, Regal Distributors SA , Perimeter Security, Alarms & Intruder Detection, Products
The RISCO wired Beyond detector is the company’s next generation in outdoor detection, featuring an updated, sleek design.

Visual intruder and perimeter security
May 2019, Secutel Technologies , Perimeter Security, Alarms & Intruder Detection
Using surveillance cameras for intruder detection and perimeter security is possible with intelligent systems.

Combine technologies for effective intruder detection
May 2019, Vox Telecom , Perimeter Security, Alarms & Intruder Detection, CCTV, Surveillance & Remote Monitoring
One does not need to break the bank when securing valuables, but rather have the right mix of various layers of technology.

Protecting ATMs
May 2019, Secutel Technologies , Perimeter Security, Alarms & Intruder Detection, Financial (Industry)
Secutel Technologies has developed an intrusion detection system called VV Compact for ATM, designed and manufactured in South Africa.

Solid perimeter security measures are still the best deterrent
May 2019, Fidelity ADT Security , Home Security, Access Control & Identity Management, Perimeter Security, Alarms & Intruder Detection, Residential Estate (Industry)
Crime in South Africa is still a problem, despite an abundance of security measures and technological advancements; however, a durable perimeter is will withstand the test of time.