A raspberry pi doesn't make a good candidate for that, as it boots into a proprietary, closed-source system before loading Linux. It's hard to beat a toughbook,

A raspberry pi doesn't make a good candidate for that, as it boots into a proprietary, closed-source system before loading Linux. It's hard to beat a toughbook, or even a ruggedized tablet, for any such scenario, especially as they are still sealed when in use. The BOM cost for this project is also relatively expensive - I estimate it around $600.