Files
coresync/coresync.js
znetsixe 21d77a8afa feat(coresync): FROST/Influx/Grafana demo + sub-tick burst-window reducer fix
Lands the end-to-end CoreSync demo (frost-influx-grafana.flow.json) along
with the supporting normalizer/identity/interpolation/reducer work, plus
a targeted fix for the under-compression bug surfaced by the FROST demo.

Under-compression fix (PointReducer):
- New burstWindowMs option (default 0, opt-in). When two samples arrive
  within burstWindowMs of each other, the second is treated as the same
  wall-clock observation: previous is replaced, slope analysis is skipped.
- Without this guard, sub-millisecond bursts (rotatingMachine emits twice
  per pressure-injection cycle, ~1 ms apart) produced near-vertical
  apparent slopes that tripped angle-change on every tick — driving
  cog/efficiency/SEC streams to ~0.6% reduction (i.e. no compression).
- With burstWindowMs: 10 in the demo flow, the same streams now compress
  at 78-93% (verified end-to-end in InfluxDB over a 3-min window).
- Editor HTML exposes the new "Burst dt" field with explanatory tooltip.

Regression test (test/basic/coresync.basic.test.js):
- New "burstWindowMs collapses sub-tick sample bursts into a single
  observation" test reproduces the exact burst pattern from the demo
  and asserts before/after behaviour.
- Existing 14 tests continue to pass.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-22 20:27:28 +02:00

53 lines
1.8 KiB
JavaScript

'use strict';
const { CoreSyncDomain } = require('./src/coreSyncDomain');
module.exports = function(RED) {
RED.nodes.registerType('coresync', function(config) {
RED.nodes.createNode(this, config);
const node = this;
const hub = new CoreSyncDomain({
frostBaseUrl: config.frostBaseUrl,
serviceVersion: config.serviceVersion,
dbaseFormat: config.dbaseFormat,
assetTagOverride: config.assetTagOverride,
sensorTagOverride: config.sensorTagOverride,
maxQueuedObservationsPerStream: config.maxQueuedObservationsPerStream,
reducer: {
angleToleranceDeg: Number(config.angleToleranceDeg),
timeScaleMs: Number(config.timeScaleMs),
maxGapMs: Number(config.maxGapMs),
minDeltaTimeMs: Number(config.minDeltaTimeMs),
minDeltaValue: Number(config.minDeltaValue),
burstWindowMs: Number(config.burstWindowMs) || 0,
comparisonMode: config.comparisonMode || 'angle',
},
});
node.on('input', (msg, send, done) => {
try {
const output = hub.handleMessage(msg);
const dbaseCount = Array.isArray(output[1]) ? output[1].length : (output[1] ? 1 : 0);
if (dbaseCount > 0) node.status({ fill: 'blue', shape: 'dot', text: `${dbaseCount} FROST request(s)` });
send(output);
} catch (error) {
node.status({ fill: 'red', shape: 'ring', text: error.message });
node.error(error, msg);
} finally {
if (typeof done === 'function') done();
}
});
node.on('close', (removed, done) => {
const closeDone = typeof removed === 'function' ? removed : done;
try {
const output = hub.flushAll('close');
if (output[1]) node.send(output);
node.status({});
} finally {
if (typeof closeDone === 'function') closeDone();
}
});
});
};