A group of electronic engineers, they have found a new method to determine the number of people in a certain area. This method works with a Wi-Fi network by controlling how the energy needs fluctuate.
Mostofi led the life of his research team, an area of 70 square meters and placed two opposite sides of the Wi-Fi transmitters and examined for changes in wireless signal. When people passed through these two points Wi-Fi signal was dropped and a small amount of radiation to distribute when they moved to one side.
The team examining these two cases, many people have developed a kind of probabilistic mathematical method to estimate that in this area. This method can now be found in the tests accurately predicted up to 9 people.
Mostofi, is about to count people walking in this study and say that it can be quite a challenge: "Only a link to the Wi-Fi power measurements with such a difficult in a small space to count so many people problems and the main motivation of this work."
If the Wi-Fi networks anywhere in the world thought they can understand this discovery can be used in a multitude of areas. Intelligent heating and lighting systems, according to the occupancy rate can be set in an automatic manner or in search and rescue, may indicate that many people anywhere in the wreckage.
The study, published in IEEE Selected Areas in Communications magazine case ...
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