The American university MIT is working on a way to the location of persons in the house to keep track of. This is done with antennas that are weak emit radio waves, which the human body is reflected.
The system, called WiTrack can in the future according to MIT used to be in games, where a player can sneak through the house, for example in a shooting game. It can also be used for the control of home automation and the check or the elderly and no longer able to stand.
WiTrack has one antenna and three receivers weak radio waves at a high frequency broadcasting, is evident from the paper. That radio waves are reflected by the human body, but go through walls and furniture. They can therefore also be used for the recognition of movement in other rooms. The system knows that it is a person because he or she moves. By measuring the time between transmission and reflection and by a driehoeksberekening to do, it may be the system the location of a person in the house to keep track of. The system can also poor recognize.
There are still limitations. The biggest is that it is only a person or a body part that can keep up with. That is, according to the developers of the system, however, to solve the problem. Also, WiTrack only persons recognized by motion and not in any other way. So, if someone sits still, he or she is not recognized by the system.
