Scientists at Washington University in the United States have developed a new type of radio communication technology that enables electronic devices to send and receive messages without power, including batteries and wired power, and to get people one step closer to the real mobile Internet. Researchers call this amazing technology "ambient scattering communications." The technology enables the creation of a new network with the aid of existing radio signals in the environment. Shia Grant, an associate professor of computer science and engineering at Washington University who is in charge of the research, said: "Simply put, we can turn the wireless signals that exist in the environment into an energy and communications medium." The technology is expected to work on wearable devices , Smart home and self-sustaining sensor networks and other applications. Joshua Smith, associate co-author of Electrical Engineering at the University of Washington, said: "The new devices can build networks without batteries, and you can morse these signals by Morse code on batteryless devices For example, sensors placed in a bridge can detect the concrete and steel health, the sensor will sound an alarm if there is a crack. In addition, it can be used to communicate between smart sensors can be permanently installed and placed in any structure, It can also be used for communications such as sending and receiving text messages or emails, integrating it into wearables, and sending and receiving text messages without any power drain. " The researchers tested the technology with credit card-sized prototypes. Test points range from 800 meters to 10 kilometers from the station, and experiments show that the devices are working well and still transmit and receive information even when far away from the tower. The device accepts signals at speeds up to 1000 bits per second, enough for the sensor to send data and send and receive text. In addition, devices based on this technology can be easily integrated into mobile devices such as cell phones, so that they can still send text messages when the phone's battery runs out. The researchers said the application will be endless. They also continue to push the technology to a wider range of capabilities, the future of the technology will be deep into all aspects of people's lives, one day we may all the electronic devices can be wirelessly connected in this way. Relevant papers were presented at the 2013 Annual Meeting of the American Computer Society Data Communications Professional Group (ACM SIGCOMM 2013), which opened on August 12. SIGCOMM is the world's top computer networking conference, the quality of the paper demanding. It is reported that the paper has won the best thesis award for this conference. Jiangyin Yuanfang Machinery Manufacture Co., Ltd , https://www.yuanfangmachine.com
The United States developed a wireless powerless technology