MEN is an Expert for Rugged and Safety-Critical Applications0 pages

Safe Computer Solutions
Failures of safety-critical electronic systems
can result in loss of life, substantial fi nancial
damage or can severely harm the environment.
A safe computer allows direct control
of safety-critical functions, meaning that the
computer tolerates hardware faults and
guarantees an undetected erroneous behavior
of <1E-9/h. MEN provides safety at
system level and even at board level. Safety
is mainly achieved by built-in redundancy
for critical function blocks like CPU, memory
and internal FPGA structure. With triple
redundancy the system remains functional
even if one CPU or memory bank delivers a
different result, thus providing reliability in
addition to safety.
Conductive Cooling Solutions
The appropriate cooling method is essential
for every application. Unlike forced air
cooling, conduction cooling optimizes the
thermal contact to conduct the heat from
the source to the outer wall of the enclosure.
This makes the enclosure itself a heat radiator.
Suitable measures must be taken to minimize
the thermal transfer resistance from the
electronic component to be cooled to the
enclosure wall. On the one hand, this is
ensured by choosing the right materials. On
the other hand, the boards inside the
enclosure need to be placed in the right way,
and the heat-conducting cooling blocks
need to have such masses that optimum
heat transport is guaranteed.
October 2010
Embedded Solutions
MEN is an Expert for Rugged
and Safety-Critical Applications
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