Hostile drone detection
from a vehicle on the move
We built a multi-sensor system that mounts on the roof of a security vehicle and delivers early detection, classification and automatic tracking of drones approaching a convoy or a protected individual - full 360-degree coverage, stationary or driving.
An airborne threat, against a vehicle that never stands still
Commercial drones are cheap, quiet and everywhere - and they have become a real threat to security convoys, public events and high-risk individuals. Most existing counter-drone systems are built for fixed sites. A moving security vehicle is a far harder problem: engine, wind and road noise mask the drone's signature, the vehicle changes heading constantly, and an autonomous drone emits no radio link to intercept. That is the problem we set out to solve.
Complementary sensing layers, one fusion engine
No single sensor beats this threat alone. So we built an architecture where each layer contributes partial information, and the fusion engine cross-correlates detections, computes a combined confidence score and decides which detections belong to the same target.
Passive acoustics
Five sensing nodes, each a microphone array synchronized to within microseconds. Detects rotor signatures and estimates bearing - transmitting nothing, so the adversary never knows they have been spotted.
Short-range radar
Provides range, radial velocity and estimated trajectory for small objects - the data that lets the system compute closing speed and time-to-arrival, and prioritize threats accordingly.
RF sensor
Detects transmissions between drone, controller and operator, including protocol identification and direction finding. A complementary layer only - an autonomous drone transmits nothing, and the system is built to find it anyway.
360° panoramic vision
Uninterrupted visual coverage of every sector, even while the tracking cameras are busy with other targets. Used for cueing, target re-acquisition after loss, and full visual recording of the event.
PTZ + thermal cameras
Two stabilized electro-optical units with day and thermal channels. Automatically slewed to the suspect sector, they verify visually and lock on - two threats in parallel, day and night.
GNSS + IMU
A navigation unit that converts every acoustic bearing from the vehicle's frame of reference to true north, compensating for turns, acceleration and vibration. If GNSS is lost, the system keeps working relative to the vehicle's own axes.
From first detection to alert - in seconds
The entire chain is automatic. The operator receives a graded alert with live video, not a flood of raw sensor data.
Detect
Acoustics, radar, RF or panoramic vision flags an anomaly in a sector.
Candidate
A provisional target is opened with a unique ID and estimated bearing.
Correlate
The fusion engine cross-matches time, angle, range and trajectory across sensors.
Score
A combined confidence level and threat grade are computed per target.
Verify
A PTZ camera is auto-assigned, visually confirms and locks onto the threat.
Alert
A graded alert reaches the crew and the control room, with live video and track.
Five verification levels, zero guesswork
False alarms erode trust. Every target climbs a transparent verification ladder, so the operator always knows exactly what the alert is based on.
- L1
Initial event - detection by a single sensor.
- L2
Suspect event - one sensor at high confidence, or two sensors at medium confidence.
- L3
Possible drone - acoustic detection correlated with RF, radar or an optical sensor.
- L4
Confirmed drone - consistent detection from at least two sensor types, including visual confirmation or track data.
- L5
High-priority threat - a confirmed target moving toward the vehicle, the convoy or the protected area.
Modular from the ground up
Every sensor connects through a uniform interface - start with the base configuration and scale up as the operational requirement grows, without touching the system core.
Base
- 5 acoustic sensing nodes
- 360° panoramic vision
- 2 PTZ cameras with thermal channel
- Fusion engine, navigation and alerts
Advanced
- Everything in Base
- Short-range radar
- Range, velocity and trajectory per target
- Time-to-arrival and automatic prioritization
Full
- Everything in Advanced
- RF sensor with direction finding
- Communication protocol identification
- Highest combined confidence level
Built to keep working
A single sensor failure never takes the system down. Losing GNSS switches operation to the vehicle's own axes, losing the control-room link never stops onboard detection and tracking, and a failed camera hands its target to the other unit by priority. All communication is encrypted, software updates are signed, and the connection to the vehicle's own systems is fully isolated.
Want to see it in action?
We would be glad to walk you through the full architecture, performance targets and field-trial plan.
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