Paulsson, Inc.
Security Products and Services

Specialist in Security Products and Services in the Middle East and Asia

Pipeline Monitoring

Basic System Configuration Diagram:

The system’s simplicity is enhanced by the fact that the sensor cable attached to the fence or pipe line requires no electronics, no electrical power, no periodic calibration and no maintenance in the field.  Additional key features of the system include:

The same fiber optic cable serves as both the sensor and the path for data flow.
Sensor cable, lead cable, and optical junction boxes are all optical, requiring no periodic maintenance or calibration.
No electronics in the field. All electronics are in a 19-inch rack in the monitoring station.
Any adjustments for individual zones can be made via pull-down menus at the CPU/operator console in the monitoring station.
System is completely unaffected by electromagnetic or radio frequency interference.
Uses sophisticated narrow band acoustic signal processing techniques to detect tampering while screening out noise.
The system can detect “Multiple Simultaneous Events”.
System automatically adjusts alarm setpoints based upon environmental conditions such as wind, rain, hail, etc.
Can adjust gain/alarm setpoints for individual zones located near noisy equipment from the operator console.
Automatically archives data from each zone for review at a later time.
Operator can select and listen to any desired zone via headphones or speakers.
System continuously self-monitors vital functions and alerts operator of problems.


When installation applications require distances longer than 50 Km, multiple “single basic systems” are networked together by simply joining the sensor cable ends together with a passive, all-optical junction/communications box, as depicted below:

How Does It Work?

The TDM Tamper Alert System is simple in application, though very sophisticated technologically. The system uses all-optical fiber optic cable as both sensor and communication medium. The fiber optic cable is divided into zones by means of factory applied Fiber Bragg Gratings. The key to the system is the unique ability of the fiber optic cable to sense minute changes in the strain applied to it. When there is movement or sound on the fence or pipeline, the strain on the fiber optic cable changes. That change in strain and the zone in which it occurs is then transferred via the fiber optic cable to the TDM / CPU and an alarm condition is sent to the PC and monitor.

copyright Paulsson, Inc. 2009
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