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Show HN: Offline SOS signaling+recovery app for disasters/wars

(github.com)
158 points nizarmah | 2 comments | 01 Apr 25 21:58 UTC | HN request time: 1.316s | source

A couple of months ago, I built this app to help identify people stuck under rubble.

First responders have awesome tools. But in tough situations, even common folks need to help.

After what happened in Myanmar, we need something like this that works properly.

It has only been tested in controlled environments. It can also be improved; I know BLE is not _that_ effective under rubble.

If you have any feedback or can contribute, don't hold back.

1. lunatuna ◴[02 Apr 25 18:57 UTC] No.43560175[source]▶
As a thought, not tested, using wifi probe requests might be better through more dense material scenarios. Using a specific AP probe request "SOS Request" from the device would help discover over all the other AP requests that others are throwing. No idea if iOS or Android would let you hijack that process.

This is a bit more extreme, but some type of triangulation from multiple rescuers could be useful in closing in on a spot.

This is really interesting and thanks for sharing.

replies(1): >>43560385 #
2. nizarmah ◴[02 Apr 25 19:13 UTC] No.43560385[source]▶
I collected a list of alternative options for signals that I'll be looking into [1]. I included wifi probe requests as well. Thank you so much!

[1]: https://github.com/nizarmah/igatha/issues/5