Perimeter drone protection: passive and active measures

Classic perimeter security is designed for a person, not a drone. The camera looks along the fence, the sensor reacts to movement, and security goes to the site. The drone passes over all this in a few seconds.

Perimeter is volume

It is necessary to protect not only the fence line, but also the air space above it: a height of 5–100 m, approaches from the road, blind spots behind buildings and crowns. Therefore, the project starts with a 3D model rather than with camera selection.

Passive means

• Networks and screens over roofs and windows.
• Shelters for critical equipment.
• Restricting access to launch sites.
• Masking and reducing the visibility of objects.

Passive means are cheap and do not cause interference, but do not stop exploration. They cover the damage caused by a drop or fall, and not the very fact of the drone’s presence.

Active funds

An active perimeter begins with detection: radar, optics, signals intelligence or acoustics. The target is then confirmed and transferred to the agent. On the perimeter, soft means are more often used - REB and laser suppression; kinetic interception is limited by debris and rules.

Blind Spots and Distributed Optics

One camera does not cover the perimeter of a complex shape. A distributed network of wide-field OES covers low altitudes and blind spots, while a central system aggregates the data. It's more expensive than one camera, but cheaper than a missed drone.

At night and in bad weather

At night the visible channel does not work; You need a thermal imager or IR illuminator. In rain and fog, the range of all sensors decreases. Therefore, the project includes a reserve for zone overlap and several detection channels.

How to check coverage

1. Construct a 3D model of the perimeter and surrounding area.
2. Mark blind spots behind buildings and canopies.
3. Launch test targets along different trajectories.
4. Check the time from detection to response.
5. Simulate night, rain and wind.