This site is the online part of distTone prototype app and project.
Its main purpose is to display data collected from Android distTone prototype app. This data is displayed raw (json) or formatted in a table. To access the formatted table you need to login or register. The purpose of login, to see raw data formatted in a table, is just for testing and future implementations; as it saves and shows the same parameters as the mobile application log.
A second purpose is to host and provide access to the latest installation kit distTone.apk and its source files, being an open source project.
distTone is a school project and is trying to make a step forward in direction of proximity detection using smarthones and only sound, so no traditional network. The main idea behind it, is to help to detect people trapped under snow or debris; but other uses can be extrapolated.
Abstract:
Proximity detection is important to people. Many methods have been used over time, but one that remains valid in almost any situation is sound.
This is an exploratory project, that will include development of an open source software prototype for Android, that aims to discover
if distance between two smartphones can be estimated, or at least to detect their proximity, by using only sound;
without any electromagnetic form of communication. The measurements will be on a nominal scale and not certain,
and will capture: the prototype distance estimation, some test conditions and real distance entered by user to find its accuracy.
The software prototype will implement a communication protocol based on sound pings (beeps) consisting in pure tones of a specific
frequency and duration, and a frequency scanner to interpret them. Test results have shown a decent accuracy in given conditions,
when sound power (level) have been used.