81 lines
2.7 KiB
JavaScript
81 lines
2.7 KiB
JavaScript
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// Calibration helpers for the pumping-station predicted volume / level
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// streams. Pure functions over a context bag holding the live
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// MeasurementContainer + basin geometry. After every calibration the
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// integrator state is reset so the next tick starts from the new anchor.
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function _resetFlowState(ctx, timestamp) {
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if (ctx.flowAggregator?.resetState) {
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ctx.flowAggregator.resetState(timestamp);
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return;
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}
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ctx._predictedFlowState = { inflow: 0, outflow: 0, lastTimestamp: timestamp };
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}
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function _clearSeries(measurements, type) {
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const series = measurements.type(type).variant('predicted').position('atequipment');
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if (series.exists()) {
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const m = series.get();
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if (m) {
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m.values = [];
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m.timestamps = [];
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}
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}
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}
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function _levelFromVolume(basin, volume) {
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const area = basin.surfaceArea;
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return area > 0 ? Math.max(volume, 0) / area : 0;
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}
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function _volumeFromLevel(basin, level) {
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const area = basin.surfaceArea;
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return area > 0 ? Math.max(level, 0) * area : 0;
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}
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function calibratePredictedVolume(ctx, calibratedVol, timestamp = Date.now()) {
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if (!ctx?.measurements || !ctx.basin) {
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throw new Error('calibratePredictedVolume: ctx.measurements and ctx.basin required');
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}
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const { measurements, basin } = ctx;
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_clearSeries(measurements, 'volume');
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_clearSeries(measurements, 'level');
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measurements.type('volume').variant('predicted').position('atequipment')
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.value(calibratedVol, timestamp, 'm3').unit('m3');
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measurements.type('level').variant('predicted').position('atequipment')
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.value(_levelFromVolume(basin, calibratedVol), timestamp, 'm');
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_resetFlowState(ctx, timestamp);
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}
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function calibratePredictedLevel(ctx, level, timestamp = Date.now(), unit = 'm') {
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if (!ctx?.measurements || !ctx.basin) {
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throw new Error('calibratePredictedLevel: ctx.measurements and ctx.basin required');
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}
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const { measurements, basin } = ctx;
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_clearSeries(measurements, 'volume');
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_clearSeries(measurements, 'level');
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measurements.type('level').variant('predicted').position('atequipment')
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.value(level, timestamp, unit);
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measurements.type('volume').variant('predicted').position('atequipment')
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.value(_volumeFromLevel(basin, level), timestamp, 'm3');
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_resetFlowState(ctx, timestamp);
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}
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function setManualInflow(ctx, value, timestamp = Date.now(), unit = 'm3/s') {
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if (!ctx?.measurements) throw new Error('setManualInflow: ctx.measurements required');
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const num = Number(value);
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ctx.measurements.type('flow').variant('predicted').position('in').child('manual-qin')
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.value(num, timestamp, unit);
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}
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module.exports = {
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calibratePredictedVolume,
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calibratePredictedLevel,
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setManualInflow,
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};
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