How to Spot Unknown Drones In Your Facilities in Real-Time

For modern oil and gas refineries, the threat from unauthorized drones is no longer theoretical. Whether it is industrial espionage, illegal photography, or potential physical interference, an unknown UAV in your airspace is a major security breach. However, refineries face a delicate challenge: many traditional drone defense systems use high-power radio signals that can interfere with sensitive plant equipment and Industrial Control Systems (ICS). To solve this, Terra Drone Arabia introduces the Terjin TDOA FTD1, a “Silent Guard” that identifies and tracks drones without emitting any radio noise into your facility.

The Safety of “Passive” Protection

 Comparison infographic showing traditional active radar causing interference versus Terjin's silent passive listening.
Unlike traditional systems, the FTD1 is a “passive” listener, meaning it creates zero radio interference with your sensitive refinery electronics.

The TDOA FTD1 is fundamentally different from traditional “active” sensors. It is a Passive RF Sensing device. Think of it as a security guard who only listens, rather than shouting signals across your plant.

  • Zero Signal Interference: Because the FTD1 only listens to radio signals, it is $100\%$ safe for environments with sensitive electronics, such as refineries, gas processing plants, and control centers.
  • Listening to the Entire Spectrum: The device scans from $100\text{ MHz}$ to $6\text{ GHz}$, capturing the radio signals drones use for control and live video feeds.
  • Invisible Security: Since the system does not transmit any signals, it is nearly impossible for an intruder to detect that they are being tracked.

Precise Tracking from Miles Away

Map view of a refinery showing three sensors triangulating the exact 3D position of an intruder drone.
By networking multiple units, the system uses TDOA technology to calculate the intruder’s exact location on your map in real-time.

In the Oil & Gas industry, early warning is the difference between a minor incident and a total facility shutdown. The TDOA FTD1 provides the high-precision data your security team needs:

  • 6km Early Warning: The system can detect drones up to $2\text{–}6\text{ km}$ away, allowing you to notice a threat long before it reaches your perimeter.
  • Finding the Exact Location: One sensor tells you a drone is near; multiple networked sensors use TDOA (Time Difference of Arrival) technology to calculate the drone’s exact 3D position on a map.
  • Fast and Reliable: Drone information is updated in less than one second, and the system is so accurate that it generates less than one false alert per day on average.
  • Smart Airspace Management: Use the Whitelist Function to tell the system which drones are yours. The FTD1 will ignore your authorized inspection drones while immediately alerting you to unknown intruders.

Secure Your Facility Without Compromise

The TDOA FTD1 is designed for easy, all-in-one installation on existing plant structures. With its ability to track over 10 drones at once and an updatable database that recognizes the latest drone models, it is the most reliable way to protect your infrastructure in an increasingly complex world.

Don’t let your airspace be a blind spot. Contact us for a FREE technical walkthrough for the Terjin TDOA FTD1.

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