• Case story: COVR tests safety for Enabled Robotics

4/30/2020

COVR and the Danish Technological Institute has tested the safety parameters of Enabled Robotics’ mobile robots.

How does an overload of 10 kilos affect the braking distance and collision force of a mobile robot? Will it still comply with safety regulations? What happens if a person inadvertently crosses paths with it during motion?

 These were some of the questions the Danish Technological Institute set out to answer while testing the overall safety of Enabled Robotics’ mobile robots.

 - The reason why we are testing this is to ensure that people can feel secure around these robots, and that we are in control of their safety, says Morten Kühnrich, Senior Specialist at the Danish Technological Institute (DTI).

 Something that has already paid off, according to Lars-Peter Ellekilde, Founder and CEO of Enabled Robotics.

 - The partnership has given us valuable inputs and assistance related to improving and evaluating the safety of our robots, says Lars-Peter Ellekilde.

 - The activities have taken us a good step in the right direction and with the support of the Danish Technological Institute, we have not only been able to validate the safety, but have in the initial phases of the project helped us update and improve our design, he adds.

 

Measuring the collision force of a mobile robot

But how do you test the collision force of a mobile robot? Well with lights and sensors, of course.

 - We set up a light grid and an external sensor that signals to the mobile robot when it is about to collide with an object, causing it to stop at a certain point. In addition, we placed a ruler on the ground to measure the braking distance of the robot, Morten Kühnrich explains.

 At the end of the robot’s path, a force sensor had been installed, simulating a human body. On impact, the sensor generated data, which in turn was supplied to a computer for further analysis. With the help of advanced engineering software, Morten and his colleagues could extrapolate how such a collision would affect a person in a real-life scenario.

 - With this method, we were able to validate that the robot complies with the braking distances specified in the manual – even with an overload of 110%, he concludes.