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By Alison Donnellan 10 June 2020 3 min read

Demining is currently a painstakingly difficult task, with the detection, cost, and human risk presenting significant challenges to creating safe and secure landmine-free communities. 

Robotics are uniquely equipped to handle dangerous tasks such as these, a fact Dr Paul Cronin of Australian research and development start-up Molten-Labsknew when he approached CSIRO’s Data61to collaborate.

Phase 1: depositing red and white lane markings to ensure complete area coverage. The vehicle follows its own deposited lanes, over spraying the red 'danger' lane marking with a white 'all safe'. This allows for more accuracy than GPS alone, and gives a clear visual indicator to locals of where the safe boundaries are.

“Autonomous robots should be used where the environment is dull, dirty, or dangerous for humans. Humanitarian demining meets all three criteria,” he says. 

“The aim of this project is to develop an autonomous demining robot, or more accurately, a swarm of autonomous demining robots that work togetherto quickly, safely, and inexpensively remove explosive mines in humanitarian crisis zones.”

Data61’s Robotics and Autonomous Systems Group team are renowned for their autonomous ground vehicle workand are applying that expertise to develop an independent vehicle that can detect, deactivate and dispose of landmines. 

The vehicle, which is roughly the size and build of a golf cart, is automated using state-of-the-art smart sensing, mapping and inspection technology, a combination that enables the system to motion plan, detect and avoid obstacleswhile being situationally aware. 

"These demining robots will be able to enter the minefield immediately, without the need to train local operators,” says Dr Cronin.

“By using a swarm of these machines that are supported by a small core team of highly qualified personnel, clearance work can begin almost immediately upon arrival.” 

Unlike human deminers, this autonomous system can operate continuously andregardless of the weather, speeding up the process. 

Traditionally, deminers have used manual methods to clear fields, often using a metal detector, stick or brush to expose the buried landmine, remove it physically by hand, and detach the firing mechanism to disarm it. 

An animation of Phase 2 of this project.

Over 100 deminers are killed or injured per year due to accidental detonation during clearance, and many are the main breadwinner for a family, this can have a devastating impact on the community. 

“Our system is inherently safer than current demining, as the robotic vehicles do not require deminers to be in the minefield,” explains Dr Cronin.

“Instead, the technical support team will be 100 metres away from the nearest operating robot.”

“If there is a problem with a robot during operations, it can ‘mate’ with another robot and be removed to the safe area for recovery and repair. This is one of the many advantages of using a swarm of inexpensive robots, rather than a singular, large, expensive mechanical machine.” 

According to Dr Cronin, this methodology will operate at least ten times faster than a human deminer and four times longer per day, resulting in a 40-fold improvement in productivity.

The project is currently in its initial stages, with the team refining the navigation and ground markingelements before moving onto developing the magnetic sensor system needed to detect the mines in the field.

According to team member and Data61 researcher Dr Paulo Borges,an articulated robotic arm that will sit at the front of the vehicle will be equipped with a variety of tools it can swap in and out, including a powerful oxy-acetylene torch. 

The torch can burn through the ground to incineratethe landmine, a technique known as deflagration. By avoiding explosion, damage to the surrounding landscape is significantly limited. 

The torch will then be switched out for a small scoop that will remove all debris.

“The key benefits of this project are to remove the fear that a misstep can cost local populations their lives,” explains Dr Borges. 

“The application of autonomous and artificially intelligent technology to this challenge can not only ensure the increased safety of areas and communities affected by landmines, but also speed up the laborious process of detection and save the lives of those people who search and clear the fields.”

Co-funded by CSIRO’s Kick-Start program, the team and Molten Labshope to have the mechanism deployed in real landmine fields intwo or so years. The Kick-Start program provides eligible Australian start-ups and small to mid-size enterprises (SMEs) with dollar-matched funding up to $50,000 to undertake a research and development project with CSIRO.

Take a closer look at how this demining robot works in the video.

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