For the fright of obstacles in the robot, about a dozen optical, mechanical and magnetic sensors are installed. The former are used for navigation and guarantee movement safety. IR sensors are looking for a break, for example, steps and stop the device. Acoustic sensors remember the places of accumulation of the largest amount of dust in order to regularly clean them. For one “arrival”, the robot removes 120 square meters. m. space and passes each place 4-6 times. Large spikes and a powerful motor allows the robot to call up to 4 cm height. Noise from the device is less than from a conventional vacuum cleaner. The Roomba 780 model can be programmed to clean the premises while at home there are no residents.
