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2 new variables #1465

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2 new variables #1465

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ffd1fc0
2 new variables
Jon-b-m Apr 18, 2024
5489f04
Adjust value
Jon-b-m May 7, 2024
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19 changes: 17 additions & 2 deletions lib/determine-basal/determine-basal.js
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Original file line number Diff line number Diff line change
Expand Up @@ -326,7 +326,14 @@ var determine_basal = function determine_basal(glucose_status, currenttemp, iob_
}

// min_bg of 90 -> threshold of 65, 100 -> 70 110 -> 75, and 130 -> 85
var threshold = min_bg - 0.5*(min_bg-40);

// But if profile.threshold_setting is over 65 increase the very minimum glucose threshold
var minimum_threshold = 60;
if (profile.threshold_setting) {
minimum_threshold = profile.threshold_setting;
}
var threshold = Math.max(min_bg - 0.5*(min_bg-40), minimum_threshold);
process.stderr.write("Glucose threshold: " + convert_bg(threshold,profile));

// If iob_data or its required properties are missing, return.
// This has to be checked after checking that we're not in one of the CGM-data-related error conditions handled above,
Expand Down Expand Up @@ -1094,10 +1101,18 @@ var maxDelta_bg_threshold;
maxBolus = round( profile.current_basal * profile.maxSMBBasalMinutes / 60 ,1);
}
// bolus 1/2 the insulinReq, up to maxBolus, rounding down to nearest bolus increment

// New smb_delivery_ratio setting. Default is 1/2 the insulinReq (0.5), like before.
var smb_delivery_ratio = 0.5;
if (profile.smb_delivery_ratio) {
smb_delivery_ratio = Math.min(Math.max(profile.smb_delivery_ratio, 0.1), 1);
process.stderr.write("SMB Ratio: " + smb_delivery_ratio);
}

bolusIncrement = 0.1;
if (profile.bolus_increment) { bolusIncrement=profile.bolus_increment };
var roundSMBTo = 1 / bolusIncrement;
var microBolus = Math.floor(Math.min(insulinReq/2,maxBolus)*roundSMBTo)/roundSMBTo;
var microBolus = Math.floor(Math.min(insulinReq*smb_delivery_ratio,maxBolus)*roundSMBTo)/roundSMBTo;
// calculate a long enough zero temp to eventually correct back up to target
var smbTarget = target_bg;
worstCaseInsulinReq = (smbTarget - (naive_eventualBG + minIOBPredBG)/2 ) / sens;
Expand Down
2 changes: 2 additions & 0 deletions lib/profile/index.js
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Expand Up @@ -75,6 +75,8 @@ function defaults ( ) {
, target_bg: false // set to an integer value in mg/dL to override pump min_bg
, edison_battery_shutdown_voltage: 3050
, pi_battery_shutdown_percent: 2
, threshold_setting: 60 // The minimum glucose threshold
, smb_delivery_ratio: 0.5 // Ratio of insulinReq, up to maxBolus, to deliver as SMB, when enabled. Default is 1/2 of insulinReq (0.5)
}
}

Expand Down