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mhi firefighting robot 2

Mitsubishi develops autonomous firefighting robots

March 28, 2019 by Mai Tao

Mitsubishi Heavy Industries has developed two firefighting robots: the “Water Cannon Robot” and the “Hose Extension Robot”. (See video below.)

As a team, they are expected to play an active role in situations too hazardous for firefighting crews, such as fires at petrochemical plants.

The Water Cannon Robot can extinguish and cool fires where human intervention is difficult, while the Hose Extension Robot automatically lays out up to 300 metres of fire hose to supply water to the Water Cannon Robot. 

Together, the two robots, when integrated with a “reconnaissance and surveillance robot” – available in aerial and ground models – and a command system, constitute a “Firefighting Robot System”.

The system is designed for installation on a dedicated transport vehicle that can be brought directly to the location of the fire.

mhi firefighting robot 1
The autonomous hose-connected robots can maneouvre close to the fire scene

The Firefighting Robot System was developed by MHI through the company’s participation in a 5-year project led by Japan’s Fire and Disaster Management Agency, to respond to energy and industrial infrastructure disasters.

On March 22, an open demonstration of the newly developed robots’ performance was held at the National Research Institute of Fire and Disaster in Tokyo.

The two models developed by MHI are built on chassis frames modified from small farm buggies that offer strong suspension combined with outstanding road maneuvering.

The frames are equipped with GPS and laser sensors that together enable autonomously controllable movement.

With the integration of advanced technologies, the robots are able to self-drive directly to the scene of a fire, equipped with an attached firehose.

mhi firefighting robot 3
The system’s water discharge capability is 4,000 litres per minute

After arrival at the scene, the Water Cannon Robot is left in position and the Hose Extension Robot moves to the water source – a fire engine, hydrant, and so on – while laying out its hose on the ground, extendable to a length of 300 metres.

The hose is of rigid, heavy (2kg/m) construction, with a 150mm inner diameter (nominal diameter 150A).

It is automatically extended and rewound in coordination with the movement of the robot, ensuring proper laying on its intended path, including maneuvers around corners.

The Water Cannon Robot comes with a nozzle for discharging water or foam, with the capability to release up to 4,000 liters per minute at a pressure of 1.0 MPa.

Going forward, MHI will continue to focus on developing a wide range of robot-related technologies that will make solid contributions to the ongoing advancement of social infrastructures.

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Filed Under: Features, Infrastructure Tagged With: firefighting robots, hose extension robot, mitsubishi heavy industries, water cannon robot

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