- Gigi Hadid absolutely obliterates Jake Paul over Zayn Malik diss Today 10:26 AM
- People really want Chris Matthews fired after he compared Sanders’ Nevada win to Nazi invasion of France Today 9:35 AM
- Bernie Sanders wins Nevada Caucuses Saturday 6:54 PM
- MSNBC is out of its mind over Sanders leading Nevada Saturday 5:20 PM
- Kim Kardashian dragged for using makeup to darken her hands Saturday 4:13 PM
- TikTok users show how they turned their vehicles into incredible tiny homes Saturday 3:44 PM
- Woman iconically pranks man who sent her an unsolicited d*ck pic Saturday 2:25 PM
- ‘Terrifying’ deepfake puts Jeff Bezos and Elon Musk in ‘Star Trek’ Saturday 1:06 PM
- A 36-year-old called the cops after being booted from parents’ phone plan Saturday 12:16 PM
- People think novelist Dean Koontz predicted the coronavirus in 1981 thriller Saturday 10:22 AM
- Twitter suspends 70 pro-Bloomberg accounts Saturday 9:15 AM
- In documentary ‘Modern Whore,’ a former escort takes control of her own narrative Saturday 6:30 AM
- Cara Delevingne calls out Justin Bieber for ‘ranking’ wife Hailey’s friends Friday 9:07 PM
- Fans defend Jenna Marbles after some people claimed she mistreated her dogs in a recent video Friday 8:37 PM
- ‘Friends’ gets reunion special on HBO Max, fans go wild Friday 7:37 PM
The system, known as power-over-Wi-Fi, uses energy contained in ambient Wi-Fi signals to send power to the camera. The team discovered that energy from the signals produced nearly enough power meet the needs of most low-power devices.
Wi-Fi signals are broadcast through inconsistent bursts across different frequencies, making it difficult to continuously harness their power. Project lead and PhD student Vamsi Talla and his research team modified Wi-Fi routers to produce digital noise on channels that weren’t sending data, creating a constant low-power source.
By tweaking the routers, Talla’s team generated a strong enough signal to power a surveillance camera and keep temperature sensor running. Both devices were several meters away from the power source.
By adding a rechargeable battery, the researchers were able to increase the range to nine meters (about 30 feet).
Though the experiment did lead to slower data speeds from the wireless connection, it represents a potential breakthrough for the world of Internet-connected household gadgets known as the Internet of Things. Instead of needing to find an outlet for every connected object in your home, you might someday be able to power them with the Wi-Fi signal they’re already using to talk to the world.
AJ Dellinger is a seasoned technology writer whose work has appeared in Digital Trends, International Business Times, and Newsweek. In 2018, he joined Gizmodo as the nights and weekend editor.