Search And Rescure GPS Command - Raspberry Pi Forums

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hello,
down , dirty. want use rpi link teams search , rescue. give gps coordinates, relay server, , teams locations displayed on grid map. if have done s&r understand how beneficial make time tables, , support allocation. places not have cell service, , not have money satcoms, or easy.
concept: want start off 4 teams. each team have 1 rpi. rpi have lcd screen, gps , wifi (yes battery packs large now) . each rpi it's gps data every 3 minutes , overlay position on projected map on lcd ( not sure how yet map programs online). save data time index file.
have strong 2.4ghz directional antennas mobile, along battery powered access points (and 1 arial drone has ap). rpis connect wifi when can, ssh (or whatever protocol wish) time stamped gps files command server. command server relay data has other teams out other rpi's , populate maps on rpi's. command server able display information on local monitor.
send commands i.e take search grid, go way search etc, way farther thinking now.
questions (besides how going make local area network in mountains) gps software best use? has lightweight, able used offline, , able customized color each team. viable? great in theory (in opinion), practical application has yet seen.

alias,
not sure in world are, or previous experience have of search & rescue.
radio amateurs have been using aprs, using amateur frequencies many years.
use xastir (which runs on pi) plot stations on map.
various devices can set (including tnc's [to interface radios] , gps).
it's possible set 'digipeating' rebroadcast other stations (subject decreasing number of 'hops').

use amateur frequencies need licence transmit, might possible use licence-free spectrum.

there amateur groups self-train in message handling in preparation disaster relief ( check national amateur radio organisation examples [rsgb in uk, arrl in usa etc.]).

wouldn't recommend going 'out wild' unless know doing, avoid becoming casualty yourself.


raspberrypi



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