Say goodbye to batteries and by filling power. Very soon we will be able to use Wi-Fi to connect to other devices and to have the batteries forever in our mobiles.
You will not need to fill in your phone to send a message and also will not have to stand on a chair to get the best signal.
All these will be part of the past, because American engineers have recently designed a technology that interacts with Wi-Fi signals and turns them into energy. They have created a prototype modem for this job.
During tests, these so-called PoWiFi modems supplied cameras without batteries from five meters away and to do so without interfering with Internet speed line owners.
The technology was first introduced by researchers at Washington University, but the main engineering, Shyam Gollakota, recently demonstrated a prototype Digital EmTech conference.
His team installed a modem PoWiFi in six home and asked the Gods to use the Internet as usual for 24 hours.
Technology makes it possible for two devices to communicate without batteries using wave signals.
PCs powered by radio frequencies are small devices that operate and communicate using the energy received from the radio frequency signals.
Modem used in tests conveyed radio waves which were converted into a direct voltage by using what is known as a 'refiner. This is similar to how solar panels convert light energy into electricity.
A DC-DC converter was then used to increase the voltage level signals to match the requirements of the sensor or microcontroller.
Technology is not the first that uses energy from sources of radio frequency environment, but it is the first that does not require a dedicated gateway to connect to the web.
More specifically, the team reuse the existing infrastructure of Wi-Fi to provide about these low power devices. And as uses radio frequency signals to the environment that are already around us, it does not require a dedicated infrastructure to strengthen power.
Users experimental homes said that they saw no significant change in their Internet experience, during the operation of charging the phone through Wi-Fi.
The researchers explained that the modem can empower a camera without the battery up to five meters away from the modem. Also it reinforced a temperature sensor without batteries.
In the study team called "To empower billions of devices with Wi-Fi", the researchers said, there is a growing interest in the things of the internet, where small sensors and mobile devices are embedded in everyday objects and the environment.
A key issue is how to strengthen these devices as becoming smaller and more numerous. The new system uses energy delivery Wi-Fi chips and minimizes the impact on network performance Wi-Fi.
Scientists claim to have made the first prototype of temperature sensors and cameras without batteries to receive electricity with Wi-Fi. "We also showed the feasibility of filling the wave of mobile phone batteries with nickel metal hybrid and lithium ion", said the scientists.
Over time, the technology could lead to network devices and sensors that send data reflecting the current signals to exchange information without the need for batteries. For example, everyday objects can be used to communicate with each other. Thus, it can be used to help users know where they leave the house keys.
Intelligent sensors can be built and placed permanently in each structure, then they can communicate with each other. This may include a bridge that monitors performance and leading alerts if one of the sensors picked up anything that is wrong.
Last year, researchers tested the technology with prototype equipment to the amount of credit cards placed inside each other. For each device, the researchers built antenna in common circuit boards that provide a light when receiving a communication signal from one device to another.
Groups of devices tested in a variety of configurations in the Seattle area, including an apartment, a street corner and a high-level garage. These locations ranging from one kilometer from a television tower up to 10 kilometers. They functioned thus giving hope to soon be saved from the charger and chips can get new energy for mobile phones and other technological devices through the waves.
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