Fiction | Scientists conquer poured in the energy space




As the resource e! Science News, researchers from the University of Washington made an unprecedented breakthrough in the field of recycling of the scattered signals in space. They set up a new wireless communication system that enables devices to exchange data. From all its existing features that energy to power it does not need any cable or battery. New communication technology is called «ambient backscatter», which can be roughly translated as “using the scattered signals.” In the space of a sufficient number of scattered signals of television and cellular systems. Two devices can share information with each other, reflecting the existing signals. While some scientists are thinking of improving battery life , while others are committed to do without it. Whose development will quickly become an everyday reality?

Television signals as a “recycled”


Scientists have created a small Soup without batteries, but with antennas that are able to find and reflect TV signals. And they in turn may be received by other similar devices.

Based on this technology, you can create a network of devices and sensors that do not require any power supply or a person’s attention. Lead researcher Associate Professor Shiyam Gollakotota (Shyam Gollakota) said:

We have found additional use of wireless signals, which have already been all around us. They will be used as a power source and as a means of communication. We hope that this will be used in a number of areas, including mobile devices, “smart” homes and self-sustaining sensor networks.

Preliminary results of the study were presented at the conference Communication 2013 , which began on August 13, 2013 in Hong Kong.

Sensors may be mounted in virtually any material. For example, sensors, integrated into the structure of the bridge can control the condition of concrete and steel, from which it is made. This technology can also be used for communication: e-mails and text messages. In this type of communication for the modern man is nothing new. Remember, though, that it does not require any power source other than the scattered signals in the environment.
Testing devices based on new technology

The scientists tested the new technology on prototypes of devices the size of a payment card. The devices were placed at a distance “a few feet of each other.” Each unit is equipped with an antenna and printed circuit boards, as well as the LED that lights up when receiving a signal from the second device.

Sets of devices were tested in a residential area, on the streets and in the upper level of underground parking. The distance from the television tower ranged from ~ 800 m to ~ 10 kilometers 460 meters.

It has been found that the devices can exchange information with each other even at a considerable distance from a television tower at a rate of 1 kbps. The distance between the devices 75 centimeters outdoors and indoors 45 centimeters. This is enough to located next to each other to exchange text messages to people.

Perhaps also equipped handsets such devices. This will allow to exchange text messages even when the phone battery is already the village. For the production of batteries is developing new materials . Industry think about the fact that electricity should bring even where there is none . All of this is not new. But the idea of ​​using television signals for communication is very original.
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