S!E, the messaging app without Internet connection

Barbarita Lara, a Computer Engineer of the Federico Santa María Technical University, got the idea after the 8.8-degree earthquake that struck Chile in 2010. S!E, or Emergency Information System, is the name of the application which reuses the radial infrastructure, encodes audios into messages and sends them to cell phones.

The scientist said that with S!E the message can be received and heard in the cell phone microphone, either with the tool or with the internal radio of the mobile device. In the same way, the message can be retransmitted wirelessly creating networks with different users.

The Chilean woman said that this is an economic and easy to use solution in any country in the world since most of the population has a smartphone. “We have studied a high-frequency algorithm that encodes communication over audio and can distribute it. We use the existing infrastructure of the FM signal to transmit encrypted data at an audio frequency inaudible to the common human ear.”

The engineer was recognized this year as one of the most important innovators under 35 years of age in the world by the Massachusetts Institute of Technology of the United States thanks to the present project. It is the first time that a Chilean appears in the aforementioned list of world innovators.

“It is a pride to be able to bring this kind of happiness to Chile and to be able to show other women that it is possible to succeed and that it does not matter if everything has worked badly at the beginning,” Lara said.

L. Sáenz

Source: Clarín

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