Unitree B2 robodog fights fires with water cannon

May 5, 2025

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Unitree has launched a modified model of its B2 quadruped aimed toward placing out fires. In a position to host varied use-specific modules, the robodog hauls a robust water cannon high-flow and might function in excessive environments.

Although quadruped robots can tackle inspection, mapping and surveillance duties, they will additionally scout harmful environments in order that people do not need to. Such is the case with the fireplace rescue bots from Unitree, which may be outfitted with surveillance modules to offer dwell video feeds to distant firefighters, permitting them to evaluate a state of affairs earlier than moving into.

Different modules mounted to its again can embrace a robotic arm, LiDAR sensors, comms tools and a water cannon with a spread of as much as 60 m (practically 200 ft) and a excessive circulate price of 40 liters per second. The hose is connected to the rear whereas the enterprise finish may be angled as much as 85 levels to swimsuit the fire-quenching want. The system can use water or foam, and the quadruped can robotically uncouple the hose and doubtlessly transfer on to different duties with out lacking a beat.

The hose module has a high flow rate of 40 liters per second and a range of 60 met — The hose module has a excessive circulate price of 40 liters per second and a spread of 60 meters

This module additionally features a sprinkler system that is not designed to place out fires, however to maintain the robotic itself cool when throughout isn’t. Which means the quadruped is dust- and waterproof, whereas composite metallic supplies for the physique additionally contribute to its excessive setting readiness.

Yet one more module worthy of point out is an air-blower unit “to extinguish forest fires safely by reducing the connection between flames and combustibles.”

The fire rescue quadruped's joints have been improved to tackle 45-degree stairs and step heights of up to 40 cm — The fireplace rescue quadruped’s joints have been improved to deal with 45-degree stairs and step heights of as much as 40 cm

Unitree has additionally boosted joint efficiency over a normal B2 by 170%, giving the robodog further climbing energy for tackling obstacles as excessive as 40 cm (15 in) and stairs with a 45-degree slant. And at last, the fireplace rescue bot advantages from a hot-swap battery system for prolonged use within the subject with out compromising waterproofing.

Plenty of drills and demos have already taken place to show the robodog’s fire-fighting mettle, and a pair just lately joined the Qingdao Firefighting and Rescue Assist Staff in an official capability. Items at the moment are accessible on the market, although we have no phrase on pricing. The video beneath has extra.