LONG ISLAND, NY – Did you know that Wi-Fi (Wireless Signals) can do much more than only providing internet access? According to researchers from the University of California-Santa Barbara proved that Wi-Fi signals can also count the number of people in a given space. This leads to aid with many diverse applications such as energy efficiency to search and rescue operations.
“Our approach can estimate the number of people walking in an area, based on only the received power measurements of a Wi-Fi link,” said Yasamin Mostofi, professor of electrical and computer engineering.
This project done by Mostofi Lab shows how Wi-Fi cards can be used to count people in a given location even without the use of a cellular or personal devices
To test out if this study was true researchers set up a target area and placed two Wi-Fi cards at each end. By only using the received power from measurements between the two cards, they had the ability to estimate the number of people that walk through that area.
So far, they have successfully tested with up to nine people, including in both indoor and outdoor settings.
From those results, researchers had the ability to create a mathematical framework which could figure out how many people are in a space at a given time.
There can be multiple benefits from this that can help our society strengthen and grow. An example is that businesses can use this to keep track of how many customers come into their store which leads to better strategies for business development and planning.
“The ability to estimate the number of people in a given space could be used in smart homes and buildings, so air conditioning and heating could be adjusted according to the level of occupancy.” Said Zeenews
The findings are forthcoming in the Institute of Electrical and Electronics Engineers Journal.
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