Similar allowances must be made for other domestic robots. To start with, children will happily put things away in order to watch the robot set off, but unfortunately the novelty soon wears off. Rooms cared for by robots must be kept tidy. All very clever, but what the Roomba wilt not do is pick up toys, shoes and other items left lying around. A 'drop-off' sensor underneath the robot prevents it from falling down stairs. The Roomba can be set up to dean at particular times, and to clean more than one room (small infra-red 'lighthouses' can be positioned in doorways, creating an invisible barrier between one room and the next that is only removed when the first room has been cleaned). The second observation is that, despite their current level of intelligence, certain allowances must be made to get the best out of a domestic robot. Now they just load them, switch them on and leave them to it. Perhaps that is not surprising: after all, when automatic washing machines first appeared, people used to draw up a chair and sit and watch them complete their wash, rinse and spin cycles.
So the first observation of life with a domestic robot is that you will keep watching it before you trust it completely. It then trundles back to dock at its recharging station. Only when it detects no more dirt does it stop going over the same area and, eventually, conclude that the whole room is clean.
The machine has a 'dirt sensor' and flashes a blue light when it finds things to clean up. Watch it for long enough, and you can sometimes predict its next move. It steadily works its way around the room, figuring out how to get out from under the television stand or untangle itself from a stray Game Boy recharging lead. Its infra-red sensors enable it to slow down before reaching an obstacle - such as a dozy cat - changing direction and setting off again. It is capable of sensing its surroundings, and does not simply try to adhere to a pre-planned route, so it is not upset if furniture is moved, or if it is picked up and taken to clean another room. Press the 'Clean' button and the robot glides out of its docking station and sets off across the floor.ĭomestic robots are supposed to free up time so that you can do other things, but watching how the Roomba deals with obstacles is strangely compelling. The latest model, the fifth version of the Roomba, has more sensors and cleverer software than its predecessors.
The best known is the Roomba, made by iRobot, an American company which has sold more than three million of the discshaped, frisbee-sized vacuuming robots. Machines that look after your home are getting cleverer, but they still need care and attention if they are to perform as intended.įloor-cleaning machines capable of responding to their environment were among the first commercially available domestic products worthy of being called robots.
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