SAS Perimeter Security
SAS provides state of the art intrusion normal fence detection system through a four-zone, fiber-optic intrusion detection sensor optimized for perimeter protection. It delivers a high Probability of Detection (PD), low Nuisance Alarm Rate (NAR), and ease of installation and operation. Its Alarm Processing Unit (APU) can be mounted indoors or placed in a weather-proof enclosure and mounted outdoors. Each zone can drive over five kilometers of combined insensitive/sensing cable providing flexible system configuration options. configuration is to remote mount all processors inside; thus, no active components are located in the field. The APU captures intrusions while rejecting nuisances such as wind and traffic. The FD intuitive user interface allows site-specific data and characteristics to be incorporated into the algorithm to ensure quicker, consistent, and repeatable tuning results for critical applications. With the FD browser-based embedded interface, no additional software is needed. The interface can be accessed either through the USB or Ethernet IP port, allowing local or remote access to the processor. Functions available include cable configuration, sensor tuning, network communications, and the installation manual. An alarm history log tracks the last hundreds of alarms for each zone. The history includes the spectral signal utilized in the built-in graphical modeler to optimize processor tuning and performance. The firmware is easily field-upgradable and automatically updates the embedded user/operations manual.
SAS also provides Covert high-security intrusion detection from a buried sensor. The buried line sensor providing one-meter target detection for the most demanding sites in the world. A detection field consisting of Radio Frequency (RF) energy is formed between two parallel buried leaky coaxial cables. Processors on both ends of this cable pair transmit and receive RF energy forming a bi-directional static field using End-to-End Correlation.
SAS Innovation solved the previous issues of RF buried sensors which was how they interact with metal objects such as fences. The signal “jumps” to a fence and then re-joins the static field further down the detection area. This phenomenon, which generates an alarm in competitive systems, is known as multi-path interference. By looking at the sensor cable signal from both directions, the system rejects these false alarm occurrences.
Increased data: to collect four times as much target data as systems that only transmit and receive from one end of the cable pair. This additional data is used to improve signal processing results. More data equals better target discrimination, thus
exponentially increasing the probability of detection and lowering the nuisance alarm ratio.
Cut tolerant: the system is the industry’s only cut tolerant system. A single cut in the sensor cable does not cause a loss in the detection area; both sides of the cable continue to transmit and receive with.