Without using much energy, this device still transmits the signal very far

Researchers at the University of Washington have just overcome the inherent limitations of developing a very small device, do not use much energy and still work very well.

Small electronic devices, sensors or wearable devices to decipher biological information such as sweat, iris, blood glucose levels . need a technique superiority to create, because they must be compact, use less energy and still work effectively.

However, if the device does not use a large battery to provide a lot of energy for the operation, its limit will be in the problem of information transmission - they will not transmit data that goes too far but only gender term within the device.

The new device has been developed by researchers at the University of Washington, helping to transfer data far away with very little energy use.(Photo: Dennis Wise / University of Washington).

However, researchers working at the University of Washington have recently launched an optimized device in all aspects of data size, energy usage and data transmission. The product is displayed at the UbiComp 2017 exhibition.

'Until now, devices that wanted to transmit far-away signals had to use a lot of energy, or it would not transmit to the point of need if using the power level in microwatt units' , Shyam Gollakota, The author of the study said.

'But this has changed as our equipment can meet both, using less power and signaling far away , promising to bring great applications to industries' , he said. adds.

The device can be applied to the body to control medical parameters.(Photo: Dennis Wise / University of Washington).

The team is continuing to develop an eyepiece lens from this device to take advantage of its long-distance transmission.(Photo: Dennis Wise / University of Washington).

The device system is made up of three single devices - a radio signal transmitter, a sensor that can sense the signal emitted and reflect it, and a receiver to be able to solve it. Signal code emitted from there. Like many other devices, but there is actually innovation.

The difference from other devices, is how to spread the original emitted signal over the frequencies. Significantly transmitted signals go through a house with 41 rooms or go straight through a large farm.

It is truly an impressive number because the device uses only 1,000 times less energy than current technologies and only costs about 20 cents to produce that can transmit signals up to 309 m2 . In addition, the receiver they use is an external receiver, which is not very expensive.

Theoretically, this sensor can be used to monitor soil moisture on an agricultural plot or monitor the level of pollution in the city, as well as some biological-related applications. and health. The team is completing equipment to be commercialized next spring.