FANDOM


The software requirements for the state machine transition logic will depend upon a list of logical conditions that are constituents of the transition logic, and then an itemized list of the transition logic itself.


Transition Components Edit

Transition Logic Edit

  • T1: Severe hypo detected: if the blood sugar is less than 55 counts continuously for 5 seconds, or is less than 65 counts continuously for 30 minutes, then transition to the "Emergency Halt" state.
  • T2: CGMS sensor fault: If GCMS data = min or max continuously for 5 seconds, or if CGMS data /= valid BG test +/- 30 counts, or if CGMS diagnostics = fault, then transition to "Control basal insulin open loop."
  • T3: CGMS Data Valid: When a CGMS sensor is replaced and its data has stabilized, then transition to "Deliver Correction Bolus" state.
  • T4: Correction bolus needed: If a correction bolus is started manually, or if the present BG is greater than the target value plus 70 counts continuously for 5 seconds, then transition to "Deliver Correction Bolus" state.
  • T5: Manual bolus 15 minutes before a meal: If a manual bolus was started, then transition to "Deliver Pre-bolus" state.
  • T6: Missed Bolus identified by a BG spike: When in the closed-loop mode and a large rapid rise in blood sugar was detected, then transition to "Deliver Missed Bolus" state.
  • T7: After bolus delivered and IOB<50%: If IOB<50% continuously for 2 seconds, then transition to "Monitor Pre-bolus" state.
  • T8: Bolus Complete: If IOB <5% continuously for 2 seconds, then transition to "Deliver Basal Insulin with Closed Loop" state.


Continue to Artificial pancreas software state requirements

Continue to Artificial pancreas software process activation requirements

Back to Hatley-Pirbhai Functional Decomposition

Ad blocker interference detected!


Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.