fault_monitor.h File Reference

Fan RPM plausibility monitor with latched fault recovery. More...

#include <Arduino.h>

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Classes
struct	FaultMonitorConfig
	Fault detection thresholds for fan RPM plausibility. More...
struct	FaultMonitorSnapshot
	Diagnostic result from one fan fault-monitor evaluation. More...
class	FaultMonitor
	Tracks fan RPM plausibility and latches persistent fan faults. More...

Variables
constexpr FaultMonitorConfig	kDefaultFaultMonitorConfig
	Default fault-monitor timing and debounce thresholds.

Detailed Description

Fan RPM plausibility monitor with latched fault recovery.

The monitor compares measured tachometer RPM against the expected fan curve after a settling delay. It debounces both failure and recovery so transient fan speed deviations do not immediately toggle the service state.