Original title: Autonomous robotic bridging using distributed swarm control without inter-agent communication
Vishwaak C. Thamaraiselvan, Cody L. Lundberg, Michail Theofandis, Suhas Chelian +1 · September 2026
Military river crossings are dangerous and depend on bulky, predictable equipment. To solve this, researchers designed SCARAB, which stands for Swarm-Capable Autonomous Robotic Aquatic Bridging. They built floating robot boats that work together as a swarm to assemble bridges. Instead of relying on spoken radio signals or GPS, which enemies could block, each robot uses its own sensors to track nearby bots and docking targetsSpecific points where robots connect to form structures.. The boats figure out their locations, link into formations, and navigate to target sites on their own. Simulations show that multiple boats can coordinate even with strong wind and water currents pushing them. This system could help armies cross rivers in unexpected spots, keep human crews safer, and also assist in civilian flood disasters.
Imagine trying to build a tent with friends, but you're not allowed to speak or signal each other. Each person has to watch what others are doing and guess where to place the poles so the tent holds up. Here, robots use sensors to see where their teammates are and position themselves to form a bridge, all without any communication.
This could let soldiers cross rivers without heavy equipment, making missions safer and harder to predict. In disasters, it might quickly create temporary bridges where communication is impossible.
The abstract doesn't state that the system has been tested in real-world conditions, only in simulation. It assumes an environment where GPS and RF communications are unavailable or jammed, but might rely on them in non-contested scenarios.
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Autonomous robotic bridging using distributed swarm control without inter-agent communication — Vishwaak C. Thamaraiselvan, Cody L. Lundberg, Michail Theofandis et al.
Abstract licence: CC0
Explanation generated by Synthesis from the abstract — it is not the original paper. This is a preprint, so it hasn't necessarily been peer reviewed.