Edge FMEA In Practice
Apply FMEA to prioritize edge gateway failure controls.
A grocery cold-storage gateway must report freezer temperature every 60 seconds and trigger a local alarm if temperature stays above threshold for five minutes. FMEA: function -> failure mode -> effect -> priority -> control The common shortcut is to write 'gateway offline' as one risk. That hides different causes with different controls: dead sensor, dead gateway, broken WAN, rejected cloud ingest, or a muted local alarm. Function Define the function as an observable promise: report freezer temperature every 60 seconds and alarm locally after five minutes above threshold. A crisp function prevents vague failure modes. You are analyzing loss…
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