Air drop
Parachute insertion
A small parachute lowers each device into ground that is remote or difficult to reach. The device lands level and starts to work.
Field reconnaissance systems
We design, build and support small sensor systems for short reconnaissance tasks. The devices go in by air, ground or water. They observe, they report, and then they come back.
01 · The difference
People often use the two words as if they mean the same thing. They do not. The difference changes the equipment, the plan and the result.
A reconnaissance task has a start and an end. Devices go in, collect information, send a report and come out.
The two activities overlap, and many tools can do both. Our work is reconnaissance: we design for short tasks, difficult access and full recovery. We do not offer long-term surveillance as a service.
02 · How a task runs
Every reconnaissance task we support has the same shape. The details change with the terrain, the time available and the information you need.
03 · Ways in
The same device family works on many carriers. We fit the mount, the power and the release method to the vehicles and aircraft you already use.
Air drop
A small parachute lowers each device into ground that is remote or difficult to reach. The device lands level and starts to work.
Unmanned aircraft
Multirotor aircraft carry devices on a release hook and set them down at a selected point.
Ground robots
A robot sets down repeaters behind it to keep its radio link while it explores tunnels, culverts and damaged structures.
Surface vessels
Uncrewed boats carry devices along coasts, rivers and lakes, or place them on the shore.
Vehicles
A magnetic mount turns a support vehicle into a moving node for route and area checks.
People
The Companion clips to a pack strap. It links each person to the mesh and to the map.
04 · Devices
The core devices are rugged mesh nodes from Tarn Design and Production. We add sensors, mounts and software to suit each task.
Mesh node · Repeater
A round, rugged node for air drop, tripod, vehicle or robot mounting. An internal battery gives long unplugged operation. Two standard 1/4-20 mount points.
Mesh node · Repeater, high visibility
The same device with a high-visibility band. Recovery teams can find it quickly in grass, scree or snow.
Mesh node · Companion
A 95 × 55 × 30 mm personal node with a display, buttons and a strap clip. It connects a phone or tablet to the mesh.
Switch on, place, leave. The device runs, checks itself and recovers from faults without help.
Radio-spectrum observation as standard. Add acoustic, vibration, environmental or camera sensors when the task needs them.
LoRa links connect the devices to each other across difficult terrain. No fixed infrastructure is necessary.
Satellite positioning on many models places each device on the map, and helps the team recover it.
Devices designed and made by Tarn Design and Production, Calgary. tarn.parts
05 · Applications
These examples show the type of work we support. Each one starts with a question that needs an answer soon.
Users include civil defence agencies, wildfire and search-and-rescue teams, research groups, environmental organisations and industrial operators.
06 · What we do
We take a reconnaissance problem from the first question to the result in the field.
We study the area, the time available, the access limits and the information you need. Then we select devices, sensors, power and insertion methods.
We assemble, configure and test the system: devices, mounts, release hardware, firmware and data paths.
We connect the devices to a map-based platform for your team, on your own network or as a secure service.
We train your people, help plan the task, and work in the field with your team when the task needs it.
Illustration of the map view. The software is configured for each task.
03 · Integrate
Devices in the field are only useful if the team can see them. We connect every device to a map view that shows status, position and results in one place.
04 · Support
Support is not only advice by email. Our people can work next to your people for training, the first tasks and difficult conditions.
Contact
Send a short description of the task. It helps if you include: