Need to stich everything together then V1.0 is done.

pumpingStation.html

@@ -58,7 +58,7 @@
     icon: "font-awesome/fa-tint",
 
     label: function () {
-      return this.positionIcon + " " + this.assetType || "pumpingStation";
+      return this.positionIcon + " PumpingStation";
     },
     
     oneditprepare: function() {

src/nodeClass.js

@@ -88,10 +88,7 @@ class nodeClass {
     
   }
 
-  /**
-   * Register this node as a child upstream and downstream.
-   * Delayed to avoid Node-RED startup race conditions.
-   */
+  // init registration msg
   _registerChild() {
     setTimeout(() => {
       this.node.send([
@@ -102,12 +99,78 @@ class nodeClass {
     }, 100);
   }
 
-  /**
-   * Start the periodic tick loop to drive the Measurement class.
-   */
+  _updateNodeStatus() {
+    const ps = this.source;
+    try {
+      // --- Basin & measurements -------------------------------------------------
+      const maxVolBeforeOverflow = ps.basin?.maxVolOverflow ?? ps.basin?.maxVol ?? 0;
+      const volumeMeasurement = ps.measurements.type("volume").variant("measured").position("atEquipment");
+      const currentVolume = volumeMeasurement.getCurrentValue("m3") ?? 0;
+      const netFlowMeasurement = ps.measurements.type("netFlowRate").variant("predicted").position("atEquipment");
+      const netFlowM3s = netFlowMeasurement?.getCurrentValue("m3/s") ?? 0;
+      const netFlowM3h = netFlowM3s * 3600;
+      const percentFull = ps.measurements.type("volume").variant("procent").position("atEquipment").getCurrentValue() ?? 0;
+
+      // --- State information ----------------------------------------------------
+      const direction = ps.state?.direction || "unknown";
+      const secondsRemaining = ps.state?.seconds ?? null;
+
+      const timeRemaining = secondsRemaining ? `${Math.round(secondsRemaining / 60)}` : 0 + " min";
+
+      // --- Icon / colour selection ---------------------------------------------
+      let symbol = "❔";
+      let fill = "grey";
+
+      switch (direction) {
+        case "filling":
+          symbol = "⬆️";
+          fill = "blue";
+          break;
+        case "draining":
+          symbol = "⬇️";
+          fill = "orange";
+          break;
+        case "stable":
+          symbol = "⏸️";
+          fill = "green";
+          break;
+        default:
+          symbol = "❔";
+          fill = "grey";
+          break;
+      }
+
+      // --- Status text ----------------------------------------------------------
+      const textParts = [
+        `${symbol} ${percentFull.toFixed(1)}%`,
+        `V=${currentVolume.toFixed(2)} / ${maxVolBeforeOverflow.toFixed(2)} m³`,
+        `net=${netFlowM3h.toFixed(1)} m³/h`,
+        `t≈${timeRemaining}`
+      ];
+
+      return {
+        fill,
+        shape: "dot",
+        text: textParts.join(" | ")
+      };
+    } catch (error) {
+      this.node.error("Error in updateNodeStatus: " + error.message);
+      return { fill: "red", shape: "ring", text: "Status Error" };
+    }
+  }
+
+
+  // any time based functions here
   _startTickLoop() {
     setTimeout(() => {
       this._tickInterval = setInterval(() => this._tick(), 1000);
+
+      // Update node status on nodered screen every second ( this is not the best way to do this, but it works for now)
+      this._statusInterval = setInterval(() => {
+        const status = this._updateNodeStatus();
+        this.node.status(status);
+      }, 1000);
+
     }, 1000);
   }
 
@@ -115,8 +178,9 @@ class nodeClass {
    * Execute a single tick: update measurement, format and send outputs.
    */
   _tick() {
-    //this.source.tick();
-
+    
+    //pumping station needs time based ticks to recalc level when predicted
+    this.source.tick();
     const raw = this.source.getOutput();
     const processMsg = this._output.formatMsg(raw, this.config, 'process');
     const influxMsg  = this._output.formatMsg(raw, this.config, 'influxdb');
@@ -156,7 +220,7 @@ class nodeClass {
   _attachCloseHandler() {
     this.node.on('close', (done) => {
       clearInterval(this._tickInterval);
-      //clearInterval(this._statusInterval);
+      clearInterval(this._statusInterval);
       done();
     });
   }

src/specificClass.js

@@ -1,5 +1,5 @@
 const EventEmitter = require('events');
-const {logger,configUtils,configManager,childRegistrationUtils,MeasurementContainer,coolprop} = require('generalFunctions');
+const {logger,configUtils,configManager,childRegistrationUtils,MeasurementContainer,coolprop,interpolation} = require('generalFunctions');
 
 class pumpingStation {
   constructor(config={}) {
@@ -9,6 +9,7 @@ class pumpingStation {
     this.defaultConfig = this.configManager.getConfig('pumpingStation');
     this.configUtils = new configUtils(this.defaultConfig);
     this.config = this.configUtils.initConfig(config);
+    this.interpolate = new interpolation();
 
     // Init after config is set
     this.logger = new logger(this.config.general.logging.enabled,this.config.general.logging.logLevel, this.config.general.name);
@@ -24,8 +25,10 @@ class pumpingStation {
 
     // Initialize basin-specific properties and calculate used parameters
     this.initBasinProperties();
-
+    this.parent = {}; // object to hold parent information for when we follow flow directions.
     this.child = {}; // object to hold child information so we know on what to subscribe
+    this.machines = {}; // object to hold child machine information
+    this.stations = {}; // object to hold station information
     this.childRegistrationUtils = new childRegistrationUtils(this); // Child registration utility
 
     this.logger.debug('pumpstation Initialized with all helpers');
@@ -35,6 +38,7 @@ class pumpingStation {
   registerChild(child, softwareType) {
     this.logger.debug('Setting up child event for softwaretype ' + softwareType);
 
+    //define what to do with measurements
     if(softwareType === "measurement"){
           const position = child.config.functionality.positionVsParent;
           const distance = child.config.functionality.distanceVsParent || 0;
@@ -50,18 +54,170 @@ class pumpingStation {
       
           this.logger.debug(` Emitting... ${eventName} with data:`);
           // Store directly in parent's measurement container
-          this.measurements
-            .type(measurementType)
-            .variant("measured")
-            .position(position)
-            .value(eventData.value, eventData.timestamp, eventData.unit);
+          this.measurements.type(measurementType).variant("measured").position(position).value(eventData.value, eventData.timestamp, eventData.unit);
           
           // Call the appropriate handler
           this._callMeasurementHandler(measurementType, eventData.value, position, eventData);
       });
     }
+
+    //define what to do when machines are connected
+    if(softwareType == "machine"){
+           // Check if the machine is already registered
+           this.machines[child.config.general.id] === undefined ?  this.machines[child.config.general.id] = child : this.logger.warn(`Machine ${child.config.general.id} is already registered.`);
+           
+           //listen for machine pressure changes
+           this.logger.debug(`Listening for flow changes from machine ${child.config.general.id}`);
+
+            switch(child.config.functionality.positionVsParent){
+            case("downstream"):
+            case("atequipment"): //in case of atequipment we also assume downstream seeing as it is registered at this pumpingstation as part of it.
+              //for now lets focus on handling downstream predicted flow
+              child.measurements.emitter.on("flow.predicted.downstream", (eventData) => {
+                    this.logger.debug(`Flow prediction update from ${child.config.general.id}: ${eventData.value} ${eventData.unit}`);
+                    this.measurements.type('flow').variant('predicted').position('out').value(eventData.value,eventData.timestamp,eventData.unit);
+              });
+              break;
+
+
+            case("upstream"):
+              //check for predicted outgoing flow at the connected child pumpingsation
+              child.measurements.emitter.on("flow.predicted.downstream", (eventData) => {
+                this.logger.debug(`Flow prediction update from ${child.config.general.id}: ${eventData.value} ${eventData.unit}`);
+                //register this then as upstream flow that arrives at the station
+                this.measurements.type('flow').variant('predicted').position('in').value(eventData.value,eventData.timestamp,eventData.unit);
+              });
+              break;
+
+              default:
+                this.logger.warn(`nu such position ${child.config.functionality.positionVsParent}`);
+          }
+
+      }
+
+      // add one for group later
+      if( softwareType == "machineGroup" ){
+
+      }
+
+      // add one for pumping station
+      if ( softwareType == "pumpingStation"){
+           // Check if the machine is already registered
+           this.stations[child.config.general.id] === undefined ?  this.machistationsnes[child.config.general.id] = child : this.logger.warn(`Machine ${child.config.general.id} is already registered.`);
+           
+           //listen for machine pressure changes
+           this.logger.debug(`Listening for flow changes from machine ${child.config.general.id}`);
+
+          switch(child.config.functionality.positionVsParent){
+            case("downstream"):
+              //check for predicted outgoing flow at the connected child pumpingsation
+              child.measurements.emitter.on("flow.predicted.downstream", (eventData) => {
+                this.logger.debug(`Flow prediction update from ${child.config.general.id}: ${eventData.value} ${eventData.unit}`);
+                //register this then as upstream flow that arrives at the station
+                this.measurements.type('flow').variant('predicted').position('out').value(eventData.value,eventData.timestamp,eventData.unit);
+              });
+              break;
+
+            case("upstream"):
+              //check for predicted outgoing flow at the connected child pumpingsation
+              child.measurements.emitter.on("flow.predicted.downstream", (eventData) => {
+                this.logger.debug(`Flow prediction update from ${child.config.general.id}: ${eventData.value} ${eventData.unit}`);
+                //register this then as upstream flow that arrives at the station
+                this.measurements.type('flow').variant('predicted').position('in').value(eventData.value,eventData.timestamp,eventData.unit);
+              });
+              break;
+
+              default:
+                // there is no such thing as atequipment from 1 pumpingstation to another....
+                this.logger.warn(`nu such position ${child.config.functionality.positionVsParent} for pumping station`);
+          }
+      }
   }
 
+  //in or outgoing flow = direction
+  _updateVolumePrediction(flowDir){
+
+    //get downflow
+    const seriesExists = this.measurements.type("flow").variant("predicted").position(flowDir).exists();
+    if(!seriesExists){return};
+
+    const series = this.measurements.type("flow").variant("predicted").position(flowDir);
+    const currFLow = series.getLaggedValue(0, "m3/s"); // { value, timestamp, unit }
+    const prevFlow = series.getLaggedValue(1, "m3/s"); // { value, timestamp, unit }
+
+    if (!currFLow || !prevFlow) return;
+
+    this.logger.debug(`currDownflow = ${currFLow.value} , prevDownFlow = ${prevFlow.value}`);
+
+    // calc difference in time 
+    const deltaT = currFLow.timestamp - prevFlow.timestamp;
+    const deltaSeconds = deltaT / 1000;
+
+    if (deltaSeconds <= 0) {
+      this.logger.warn(`Flow integration aborted; invalid Δt=${deltaSeconds}s.`);
+      return;
+    }
+    
+    const avgFlow = (currFLow.value + prevFlow.value) / 2;
+    const calcVol = avgFlow * deltaSeconds;
+
+    //substract seeing as this is downstream and is being pulled away from the pumpingstaion and keep track of status
+    const currVolume = this.measurements.type('volume').variant('predicted').position('atEquipment').getCurrentValue('m3');
+    let newVol = currVolume;
+
+    switch(flowDir){
+      case("out"):
+        newVol = currVolume - calcVol;
+        break;
+    
+      case("in"):
+        newVol = currVolume + calcVol;
+        break;
+      
+      default:
+        this.logger.error('Flow must come in or out of the station!');
+      }
+    
+
+    this.measurements.type('volume').variant('predicted').position('atEquipment').value(newVol).unit('m3');
+    //convert to a predicted level
+    const newLevel = this._calcLevelFromVolume(newVol);
+
+    this.measurements.type('level').variant('predicted').position('atEquipment').value(newLevel).unit('m');
+
+    this.logger.debug(`new predicted volume : ${newVol} new predicted level: ${newLevel} `);
+
+  }
+
+
+  //trigger shutdown when level is too low and trigger no start flag for childs ? 
+  safetyVolCheck(){
+
+  }
+
+
+  //update measured temperature to adjust density of liquid
+  updateMeasuredTemperature(){
+
+  }
+
+  //update measured flow and recalc 
+  updateMeasuredFlow(){
+
+  }
+
+  //keep updating the volume / level when the flow is still active from a machine or machinegroup or incoming from another source
+  tick(){
+    //go through all the functions that require time based checks or updates
+    this._updateVolumePrediction("out"); //check for changes in outgoing flow
+    this._updateVolumePrediction("in"); // check for changes in incomming flow
+        //calc the most important values back to determine state and net up or downstream flow
+    this._calcNetFlow();
+    this._calcTimeRemaining();
+    
+  }
+  
+
   _callMeasurementHandler(measurementType, value, position, context) {
   switch (measurementType) {
     case 'pressure':
@@ -86,7 +242,7 @@ class pumpingStation {
       this.updatePosition();
       break;
   }
-}
+  }
 
   //  context handler for pressure updates
   updateMeasuredPressure(value, position, context = {}) {
@@ -108,6 +264,7 @@ class pumpingStation {
       this.logger.warn(`No temperature measurement available, defaulting to 15C for pressure to level conversion.`);
       this.measurements.type("temperature").variant("assumed").position("atEquipment").value(15, Date.now(), "C");
       kelvinTemp = this.measurements.type('temperature').variant('assumed').position('atEquipment').getCurrentValue('K');
+      this.logger.debug(`Temperature is : ${kelvinTemp}`);
     } else {
       kelvinTemp = mTemp;
     }
@@ -118,11 +275,10 @@ class pumpingStation {
     const level = pressure_Pa / density * g;
 
     this.measurements.type("level").variant("predicted").position(position).value(level);
-    //updatePredictedLevel(); ?? 
+    //updatePredictedLevel(); ?? OLIFANT!
 
     //calculate how muc flow went in or out based on pressure difference
     this.logger.debug(`Using pressure: ${value} for calculations`);
-
     
   }
 
@@ -134,111 +290,89 @@ class pumpingStation {
     const level = this.measurements.type("level").variant("measured").position(position).getCurrentValue('m');
     //calc vol in m3
     const volume = this._calcVolumeFromLevel(level);
-    this.measurements.type("volume").variant("measured").position("atEquipment").value(volume).unit('m3');
+    this.logger.debug(`basin minvol : ${this.basin.minVol}, cur volume : ${volume} / ${this.basin.maxVolOverflow}`);
 
-    //calc the most important values back to determine state and net up or downstream flow
-    this._calcNetFlow();
+    const proc = this.interpolate.interpolate_lin_single_point(volume,this.basin.minVol,this.basin.maxVolOverflow,0,100);
+    this.logger.debug(`PROC volume : ${proc}`);
+    this.measurements.type("volume").variant("measured").position("atEquipment").value(volume).unit('m3');
+    this.measurements.type("volume").variant("procent").position("atEquipment").value(proc);
     
   }
 
-
   _calcNetFlow() {
+    let netFlow = null;
+
+    const netFlow_FlowSensor = Math.abs(this.measurements.type("flow").variant("measured").difference({ from: "downstream", to: "upstream", unit: "m3/s" }));
+    const netFlow_LevelSensor = this._calcNetFlowFromLevelDiff();
+    const netFlow_PredictedFlow = Math.abs(this.measurements.type('flow').variant('predicted').difference({ from: "in", to: "out", unit: "m3/s" }));
+
+    switch (true){
+      //prefer flowsensor netflow
+      case (netFlow_FlowSensor!=null):
+        return netFlow_FlowSensor;
+      //try using level difference if possible to infer netflow
+      case (netFlow_LevelSensor!= null):
+        return netFlow_LevelSensor;
+      case (netFlow_PredictedFlow != null):
+        return netFlow_PredictedFlow;
+      default: 
+        this.logger.warn(`Can't calculate netflow without the proper measurements or predictions`);
+        return null;
+    }
+
+  }
+
+  _calcRemainingTime(level,variant){
+
     const { heightOverflow, heightOutlet, surfaceArea } = this.basin;
+    const flowDiff = this.measurements.type("flow").variant(variant).difference({ from: "downstream", to: "upstream", unit: "m3/s" });
 
-    const flowBased = this._calcNetFlowFromMeasurements({
-      heightOverflow,
-      heightOutlet,
-      surfaceArea
-    });
+    switch(true){
+      case(flowDiff>0):
+        remainingHeight = Math.max(heightOverflow - level, 0);
+        this.state.seconds = remainingHeight * surfaceArea / flowDiff;
+        break;
 
-    const levelBased = this._calcNetFlowFromLevel({
-      heightOverflow,
-      heightOutlet,
-      surfaceArea
-    });
+      case(flowDiff<0):
+        remainingHeight = Math.max(level - heightOutlet, 0);
+        this.state.seconds = remainingHeight * surfaceArea / Math.abs(flowDiff);
+        break;
 
-    if (flowBased && levelBased) {
-      this.logger.debug(
-        `Flow vs Level comparison | flow=${flowBased.netFlowRate.toFixed(3)} ` +
-        `m3/s, level=${levelBased.netFlowRate.toFixed(3)} m3/s`
-      );
-    }
+      default:
+        this.logger.debug(`doing nothing with level calc`)
 
-    const effective = flowBased || levelBased;
-    if (effective) {
-      this.state = effective.state;
-      this.state.netFlowSource = flowBased ? (levelBased ? "flow+level" : "flow") : "level";
-      this.logger.debug(`Net-flow state: ${JSON.stringify(this.state)}`);
-    } else {
-      this.logger.debug("Net-flow state: insufficient data");
-    }
+    } 
 
-    return effective;
   }
 
-  _calcNetFlowFromMeasurements({ heightOverflow, heightOutlet, surfaceArea }) {
-    const flowDiff = this.measurements
-      .type("flow")
-      .variant("measured")
-      .difference({ from: "downstream", to: "upstream", unit: "m3/s" });
+  _calcDirection(flowDiff){
 
-    const level = this.measurements
-      .type("level")
-      .variant("measured")
-      .position("atEquipment")
-      .getCurrentValue("m");
+    let direction = null;
 
-    const flowUpstream = this.measurements
-      .type("flow")
-      .variant("measured")
-      .position("upstream")
-      .getCurrentValue("m3/s");
+     switch (true){
+      case flowDiff > flowThreshold:
+        direction = "filling";
+        break;
 
-    const flowDownstream = this.measurements
-      .type("flow")
-      .variant("measured")
-      .position("downstream")
-      .getCurrentValue("m3/s");
+      case flowDiff < -flowThreshold:
+        direction = "draining";
+        break;
+
+      case flowDiff < flowThreshold && flowDiff > -flowThreshold:
+        direction = "stable";
+        break;
+
+      default:
+        this.logger.warn("Uknown state direction detected??");
+        return null;
 
-    if (flowDiff === null || level === null) {
-      this.logger.warn(`no flowdiff ${flowDiff} or level ${level} found escaping`);
-      return null;
     }
-
-    
-    const flowThreshold = 0.1; // m³/s
-    const state = { direction: "stable", seconds: 0, netUpstream: flowUpstream ?? 0, netDownstream: flowDownstream ?? 0 };
-
-    if (flowDiff > flowThreshold) {
-      state.direction = "filling";
-      const remainingHeight = Math.max(heightOverflow - level, 0);
-      state.seconds = remainingHeight * surfaceArea / flowDiff;
-    } else if (flowDiff < -flowThreshold) {
-      state.direction = "draining";
-      const remainingHeight = Math.max(level - heightOutlet, 0);
-      state.seconds = remainingHeight * surfaceArea / Math.abs(flowDiff);
-    }
-
-    this.measurements
-      .type("netFlowRate")
-      .variant("predicted")
-      .position("atEquipment")
-      .value(flowDiff)
-      .unit("m3/s");
-
-    this.logger.debug(
-      `Flow-based net flow | diff=${flowDiff.toFixed(3)} m3/s, level=${level.toFixed(3)} m`
-    );
-
-    return { source: "flow", netFlowRate: flowDiff, state };
+    return direction;
   }
 
-  _calcNetFlowFromLevel({ heightOverflow, heightOutlet, surfaceArea }) {
-    const levelObj = this.measurements
-      .type("level")
-      .variant("measured")
-      .position("atEquipment");
-
+  _calcNetFlowFromLevelDiff() {
+    const { surfaceArea } = this.basin;
+    const levelObj = this.measurements.type("level").variant("measured").position("atEquipment");
     const level = levelObj.getCurrentValue("m");
     const prevLevel = levelObj.getLaggedValue(2, "m"); // { value, timestamp, unit }
     const measurement = levelObj.get();
@@ -257,38 +391,12 @@ class pumpingStation {
 
     const lvlDiff = level - prevLevel.value;
     const lvlRate = lvlDiff / deltaSeconds; // m/s
-    const levelRateThreshold = 0.1 / surfaceArea; // same 0.1 m³/s threshold translated to height
-
-    const state = { direction: "stable", seconds: 0, netUpstream: 0, netDownstream: 0 };
-
-    if (lvlRate > levelRateThreshold) {
-      state.direction = "filling";
-      const remainingHeight = Math.max(heightOverflow - level, 0);
-      state.seconds = remainingHeight / lvlRate;
-    } else if (lvlRate < -levelRateThreshold) {
-      state.direction = "draining";
-      const remainingHeight = Math.max(level - heightOutlet, 0);
-      state.seconds = remainingHeight / Math.abs(lvlRate);
-    }
-
     const netFlowRate = lvlRate * surfaceArea; // m³/s inferred from level trend
 
-    this.measurements
-      .type("netFlowRate")
-      .variant("predicted")
-      .position("atEquipment")
-      .value(netFlowRate)
-      .unit("m3/s");
-
-    this.logger.warn(
-      `Level-based net flow | rate=${lvlRate.toExponential(3)} m/s, inferred=${netFlowRate.toFixed(3)} m3/s`
-    );
-
-    return { source: "level", netFlowRate, state };
+    return netFlowRate;
   }
 
   initBasinProperties() {
-
     
     // Load and calc basic params
     const volEmptyBasin      = this.config.basin.volume;
@@ -301,8 +409,8 @@ class pumpingStation {
     const surfaceArea       = volEmptyBasin / heightBasin;
     const maxVol            = heightBasin * surfaceArea; // if Basin where to ever fill up completely this is the water volume
     const maxVolOverflow    = heightOverflow * surfaceArea ; // Max water volume before you start loosing water to overflow
-    const minVol            = heightInlet * surfaceArea;
-    const minVolOut         = heightOutlet * surfaceArea ; // this will indicate if its an open end or a closed end.
+    const minVol            = heightOutlet * surfaceArea;
+    const minVolOut         = heightInlet * surfaceArea ; // this will indicate if its an open end or a closed end.
 
     this.basin.volEmptyBasin  = volEmptyBasin  ;
     this.basin.heightBasin    = heightBasin    ;
@@ -315,11 +423,14 @@ class pumpingStation {
     this.basin.minVol         = minVol        ;
     this.basin.minVolOut      = minVolOut     ;
 
-      this.logger.debug(
-    `Basin initialized | area=${surfaceArea.toFixed(2)} m², max=${maxVol.toFixed(2)} m³, overflow=${maxVolOverflow.toFixed(2)} m³`
-  );
-
+    //init predicted min volume to min vol in order to have a starting point
+    this.measurements.type("volume").variant("predicted").position("atEquipment").value(minVol).unit('m3');
 
+    this.logger.debug(`
+        Basin initialized | area=${surfaceArea.toFixed(2)} m², 
+        max=${maxVol.toFixed(2)} m³, 
+        overflow=${maxVolOverflow.toFixed(2)} m³`
+    );
   }
 
 _calcVolumeFromLevel(level) {
@@ -327,21 +438,230 @@ _calcVolumeFromLevel(level) {
   return Math.max(level, 0) * surfaceArea;
 }
 
+_calcLevelFromVolume(vol){
+  const surfaceArea = this.basin.surfaceArea;
+  return Math.max(vol, 0) / surfaceArea;
+}
 
-  getOutput() {
-    return {
-      volume_m3: this.measurements.type("volume").variant("measured").position("atEquipment").getCurrentValue('m3') ,
 
-    };
-  }
+getOutput() {
+    // Improved output object generation
+    const output = {};
+    //build the output object
+    this.measurements.getTypes().forEach(type => {
+      this.measurements.getVariants(type).forEach(variant => {
+        this.measurements.getPositions(variant).forEach(position => {
+        const sample = this.measurements.type(type).variant(variant).position(position);
+        output[`${type}.${variant}.${position}`] = sample.getCurrentValue();
+        });
+      });
+    });
+
+    //fill in the rest of the output object
+    output["state"] = this.state;
+    output["basin"] = this.basin;
+
+    if(this.flowDrift != null){
+      const flowDrift = this.flowDrift;
+      output["flowNrmse"] = flowDrift.nrmse;
+      output["flowLongterNRMSD"] = flowDrift.longTermNRMSD;
+      output["flowImmediateLevel"] = flowDrift.immediateLevel;
+      output["flowLongTermLevel"] = flowDrift.longTermLevel;
+    }
+
+
+    return output;
+}
 }
 
 module.exports = pumpingStation;
 
+/* ------------------------------------------------------------------------- */
+/* Example: pumping station + rotating machine + measurements (stand-alone)  */
+/* ------------------------------------------------------------------------- */
+
+const PumpingStation = require("./specificClass");
+const RotatingMachine = require("../../rotatingMachine/src/specificClass");
+const Measurement = require("../../measurement/src/specificClass");
+
+/** Helpers ******************************************************************/
+function createPumpingStationConfig(name) {
+  return {
+    general: {
+      logging: { enabled: true, logLevel: "debug" },
+      name,
+      id: `${name}-${Date.now()}`,
+      unit: "m3/h"
+    },
+    functionality: {
+      softwareType: "pumpingStation",
+      role: "stationcontroller"
+    },
+    basin: {
+      volume: 43.75,
+      height: 3.5,
+      heightInlet: 0.3,
+      heightOutlet: 0.2,
+      heightOverflow: 3.0
+    },
+    hydraulics: {
+      refHeight: "NAP",
+      basinBottomRef: 0
+    }
+  };
+}
+
+function createLevelMeasurementConfig(name) {
+  return {
+    general: {
+      logging: { enabled: true, logLevel: "debug" },
+      name,
+      id: `${name}-${Date.now()}`,
+      unit: "m"
+    },
+    functionality: {
+      softwareType: "measurement",
+      role: "sensor",
+      positionVsParent: "atEquipment"
+    },
+    asset: {
+      category: "sensor",
+      type: "level",
+      model: "demo-level",
+      supplier: "demoCo",
+      unit: "m"
+    },
+    scaling: { enabled: false },
+    smoothing: { smoothWindow: 5, smoothMethod: "none" }
+  };
+}
+
+function createFlowMeasurementConfig(name, position) {
+  return {
+    general: {
+      logging: { enabled: true, logLevel: "debug" },
+      name,
+      id: `${name}-${Date.now()}`,
+      unit: "m3/s"
+    },
+    functionality: {
+      softwareType: "measurement",
+      role: "sensor",
+      positionVsParent: position
+    },
+    asset: {
+      category: "sensor",
+      type: "flow",
+      model: "demo-flow",
+      supplier: "demoCo",
+      unit: "m3/s"
+    },
+    scaling: { enabled: false },
+    smoothing: { smoothWindow: 5, smoothMethod: "none" }
+  };
+}
+
+
+function createMachineConfig(name) {
+
+  curve = require('C:/Users/zn375/.node-red/public/fallbackData.json');
+  return {
+    
+    general: {
+        name: name,
+        logging: {
+            enabled: true,
+            logLevel: "warn",
+        }
+    },
+    asset: {
+        supplier: "Hydrostal",
+        type: "pump",
+        category: "centrifugal",
+        model: "hidrostal-H05K-S03R", // Ensure this field is present.
+    }
+  }
+}
+
+function createMachineStateConfig() {
+  return {
+    general: {
+      logging: {
+        enabled: true,
+        logLevel: "debug",
+      },
+    },
+    // Your custom config here (or leave empty for defaults)
+    movement: {
+      speed: 1,
+    },
+    time: {
+      starting: 2,
+      warmingup: 3,
+      stopping: 2,
+      coolingdown: 3,
+    },
+  }
+}
+
+// convenience for seeding measurements
+function pushSample(measurement, type, value, unit) {
+  const pos = measurement.config.functionality.positionVsParent;
+  measurement.measurements
+    .type(type)
+    .variant("measured")
+    .position(pos)
+    .value(value, Date.now(), unit);
+}
+
+/** Demo *********************************************************************/
+(async function demoStationWithPump() {
+  const station = new PumpingStation(createPumpingStationConfig("PumpingStationDemo"));
+  const pump = new RotatingMachine(createMachineConfig("Pump1"), createMachineStateConfig());
+
+  const levelSensor = new Measurement(createLevelMeasurementConfig("WetWellLevel"));
+  const upstreamFlow = new Measurement(createFlowMeasurementConfig("InfluentFlow", "upstream"));
+  const downstreamFlow = new Measurement(createFlowMeasurementConfig("PumpDischargeFlow", "downstream"));
+
+
+  // station uses the sensors
+  /*
+  station.childRegistrationUtils.registerChild(levelSensor, levelSensor.config.functionality.softwareType);
+  station.childRegistrationUtils.registerChild(upstreamFlow, upstreamFlow.config.functionality.softwareType);
+  station.childRegistrationUtils.registerChild(downstreamFlow, downstreamFlow.config.functionality.softwareType);
+  */
+
+  // pump owns the downstream flow sensor
+  pump.childRegistrationUtils.registerChild(downstreamFlow, downstreamFlow.config.functionality.positionVsParent);
+  station.childRegistrationUtils.registerChild(pump,"downstream");
+
+  setInterval(() => station.tick(), 1000);
+
+  // seed a starting level & flow
+  /*
+  pushSample(levelSensor, "level", 1.8, "m");
+  pushSample(upstreamFlow, "flow", 0.35, "m3/s");
+  pushSample(downstreamFlow, "flow", 0.20, "m3/s");
+  */
+
+  await new Promise(resolve => setTimeout(resolve, 20));
+
+  // pump increases discharge flow
+  /*
+  pushSample(downstreamFlow, "flow", 0.28, "m3/s");
+  pushSample(upstreamFlow, "flow", 0.40, "m3/s");
+  pushSample(levelSensor, "level", 1.85, "m");
+  */
+console.log("Station output:", station.getOutput());
+await pump.handleInput("parent", "execSequence", "startup");
+await pump.handleInput("parent", "execMovement", 50);
+  console.log("Station state:", station.state);
+  console.log("Station output:", station.getOutput());
+  console.log("Pump state:", pump.state.getCurrentState());
+})();
+
+
 /*
-
-//
-
 //coolprop example
 (async () => {
   const PropsSI = await coolprop.getPropsSI();