Experts in the field of robotics have had a hard time making their own inventions open doors, on account of the difficult tasks that are involved in the process, but now a team has managed to crack the problem for a real-life application. While it may seem simple for us, a great degree of coordination and intelligence is needed to open a door. Former University of Massachusetts in Lowell (UML) student Erin Rapacki has managed to come up with a low-cost solution that allows for the mounting of a specialized gripper on wheelchairs, which makes it possible for users to navigate through doors without having to reach them themselves.

When opening a door, our brains take into account a number of complex factors, and put them in relation, in order for us to be able to open the “obstacle” in the first attempt. We need to know our exact position as opposed to the door, and also the extent of our own hand. We then must calculate “how much force is needed to open the door, the twisting angles to unlatch the door, and how much force is needed to unlatch it,” Rapacki says. This holds true for robots as well, only, in their case, humans need to devise the algorithms that allow them to perform such intricate calculations fast enough to make them of use.

Another important function that robotic... (read more)