Electronics > Microcontrollers

RPi reliability: suitable for Heart/Lung machine? Elon Rocket? Airbag system?

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frogblender:
I'm trying to gauge the long-term reliability of the Raspberry pi 4 Compute module.
Despite my clickbait post title, it will not be used in life-critical applications. 
However, I do want to use it, embedded, in datacenter product, with reliability in one of the lower (lousier) reliability tiers (which of course is still far above any weekend-warrior or consumer-grade stuff).   

So, for starters, the SDcard has to be scrapped in favor of eMMC.

If anyone has experience with rPi's being used in a datacenter-like environment, and the long-term reliability/success thereof, please chime in.

(and for those who wish to post about how their rpi ver 1.00 behind their television has been running nonstop 24x7x365 since 2004... congratulations.  But please resist the urge to post.   I need hard data from datacenters and commercial environments).

fchk:
Not RPi, but NVidia Jetson: They have their roots in the automotive sector, and the requirements there are very strict. Think of dashboard displays that replace mechanical speed/rpm/... instruments. Or the large touchscreen in Teslas - also driven by an NVidia ARM/GPU chip.

The Jetson Nano/xavier NX/Xavier AGX modules are descendants of these chips for industrial use. We use then since 2017 for various products and projects, and they just work.

Frank-Christian

PS: There are industrial versions with extened temperature range, ECC protected memory etc. And all modules support Secure Boot etc.

harerod:
fchk, out of curiosity: which OS and compiler suite would you use for those devices to get past regulatory?

fchk:

--- Quote from: harerod on July 28, 2021, 08:18:43 am ---fchk, out of curiosity: which OS and compiler suite would you use for those devices to get past regulatory?

--- End quote ---

We don't do automotive projects. The boards NVidia sells to the OEMs use the bare chips and not the Jetson modules. Jetson uses Ubuntu 18.04 LTS plus closed-source drivers (just like in the PC world). What they use for their automotive products is unknown to me.

These are the automotive boards:
https://developer.nvidia.com/drive

Frank-Christian

janoc:

--- Quote from: harerod on July 28, 2021, 08:18:43 am ---fchk, out of curiosity: which OS and compiler suite would you use for those devices to get past regulatory?

--- End quote ---

I would say Linux and GCC are just fine even in automotive applications unless used for safety-critical functions. That's what Tesla is using, for example but also many European car manufacturers for their touchscreens and infotainment.

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