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BangleApps
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Delete log file in delete(), new algorithm for weighted average over time

master
RKBoss6 2025-07-24 21:07:06 -04:00 committed by GitHub
parent 99f79878c9
commit fdab17a6be
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1 changed files with 21 additions and 15 deletions
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36
apps/smartbatt/module.js
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@ -1,10 +1,15 @@
{
var filename = "smartbattdata.json";
var dataFile = "smartbattdata.json";
var interval;
var storage=require("Storage");
var settings = Object.assign({
//Record Interval stored in ms
doLogging:false
}, require('Storage').readJSON("smartbatt.settings.json", true) || {});
var logFile = "smartbattlog.json";
var doLogging=true;
function logBatterySample(entry) {
let log = storage.readJSON(logFile, 1) || [];
@ -40,31 +45,27 @@
data.battLastRecorded = batt;
}
storage.writeJSON(filename, data);
storage.writeJSON(dataFile, data);
} else if (deltaHours <= 0 || !isFinite(deltaHours)) {
reason = "Skipped: invalid time delta";
data.timeLastRecorded = now;
data.battLastRecorded = batt;
storage.writeJSON(filename, data);
storage.writeJSON(dataFile, data);
} else {
let currentDrainage = battChange / deltaHours;
// Calculate new average
let alpha = 0.3; // how "fast" to react (0.1 = slow, 0.5 = fast)
// Weight alpha by how much time the new reading represents
let weight = deltaHours / (deltaHours + 1);
let effectiveAlpha = alpha * weight;
data.avgBattDrainage = (effectiveAlpha * currentDrainage) + (1 - effectiveAlpha) * data.avgBattDrainage;
let newAvg = weightedAverage(data.avgBattDrainage, data.totalHours, currentDrainage, deltaHours);
data.avgBattDrainage=newAvg;
data.timeLastRecorded = now;
data.totalCycles += 1;
data.totalHours+=deltaHours;
data.battLastRecorded = batt;
storage.writeJSON(filename, data);
storage.writeJSON(dataFile, data);
reason = "Drainage recorded: " + currentDrainage.toFixed(3) + "%/hr";
}
if(doLogging){
if(settings.doLogging){
// Always log the sample
logBatterySample({
time: now,
@ -77,11 +78,15 @@
});
}
}
function weightedAverage(oldValue, oldWeight, newValue, newWeight) {
return (oldValue * oldWeight + newValue * newWeight) / (oldWeight + newWeight);
}
function getData() {
return storage.readJSON(filename, 1) || {
return storage.readJSON(dataFile, 1) || {
avgBattDrainage: 0,
battLastRecorded: E.getBattery(),
timeLastRecorded: Date.now(),
@ -104,7 +109,8 @@
}
function deleteData(){
storage.erase(filename);
storage.erase(dataFile);
storage.erase(logFile);
}
// Expose public API
exports.record = recordBattery;
@ -113,7 +119,7 @@
exports.changeInterval = function(newInterval) {
clearInterval(interval);
interval=setInterval(recordBattery, newInterval);
}
};
// Start recording every 5 minutes
interval=setInterval(recordBattery, 600000);
recordBattery(); // Log immediately