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🚸 Temperature Variance Monitor tweaks (#23571)

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Co-authored-by: Scott Lahteine <thinkyhead@users.noreply.github.com>
This commit is contained in:
John Lagonikas
2023-03-18 13:43:15 +02:00
committed by GitHub
parent 3c88270361
commit 5be895d906
5 changed files with 51 additions and 10 deletions
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11
Marlin/src/module/temperature.cpp
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@@ -2915,11 +2915,18 @@ void Temperature::init() {
*/
#if ENABLED(THERMAL_PROTECTION_VARIANCE_MONITOR)
#ifdef THERMAL_PROTECTION_VARIANCE_MONITOR_PERIOD
#define VARIANCE_WINDOW THERMAL_PROTECTION_VARIANCE_MONITOR_PERIOD
#else
#define VARIANCE_WINDOW period_seconds
#endif
if (state == TRMalfunction) { // temperature invariance may continue, regardless of heater state
variance += ABS(current - last_temp); // no need for detection window now, a single change in variance is enough
last_temp = current;
if (!NEAR_ZERO(variance)) {
variance_timer = millis() + SEC_TO_MS(period_seconds);
variance_timer = millis() + SEC_TO_MS(VARIANCE_WINDOW);
variance = 0.0;
state = TRStable; // resume from where we detected the problem
}
@@ -2980,7 +2987,7 @@ void Temperature::init() {
state = TRMalfunction;
break;
}
variance_timer = now + SEC_TO_MS(period_seconds);
variance_timer = now + SEC_TO_MS(VARIANCE_WINDOW);
variance = 0.0;
last_temp = current;
}