node-red-contrib-boolean-logic-ultimate/examples/KalmanFilterUltimate.json

A set of Node-RED enhanced boolean logic and utility nodes, flow interruption, blinker, invert, filter, toggle etc.., with persistent values after reboot. Compatible also with Homeassistant values.

[
  {
    "id": "kal_tab_1",
    "type": "tab",
    "label": "KalmanFilterUltimate - smooth noisy values",
    "disabled": false,
    "info": "Esempio: genera un valore rumoroso e lo filtra con il Kalman filter."
  },
  {
    "id": "kal_cmt_1",
    "type": "comment",
    "z": "kal_tab_1",
    "name": "Clicca più volte \"Next sample\"",
    "info": "Il Function genera una rampa con rumore. Confronta \"Raw\" e \"Filtered\".",
    "x": 220,
    "y": 60,
    "wires": []
  },
  {
    "id": "kal_inj_1",
    "type": "inject",
    "z": "kal_tab_1",
    "name": "Next sample",
    "props": [{ "p": "payload", "v": "", "vt": "date" }],
    "repeat": "",
    "crontab": "",
    "once": false,
    "onceDelay": 0.1,
    "x": 140,
    "y": 140,
    "wires": [["kal_fn_1"]]
  },
  {
    "id": "kal_fn_1",
    "type": "function",
    "z": "kal_tab_1",
    "name": "Noisy generator",
    "func": "let value = context.get('value') || 0;\nvalue += 1;\ncontext.set('value', value);\n\nconst noise = (Math.random() - 0.5) * 6; // +/- 3\nmsg.payload = value + noise;\nreturn msg;",
    "outputs": 1,
    "noerr": 0,
    "initialize": "",
    "finalize": "",
    "libs": [],
    "x": 340,
    "y": 140,
    "wires": [["kal_dbg_raw", "kal_node_1"]]
  },
  {
    "id": "kal_node_1",
    "type": "KalmanFilterUltimate",
    "z": "kal_tab_1",
    "name": "Kalman",
    "payloadPropName": "payload",
    "translatorConfig": "",
    "measurementNoise": 0.01,
    "processNoise": 3,
    "x": 520,
    "y": 200,
    "wires": [["kal_dbg_filt"]]
  },
  {
    "id": "kal_dbg_raw",
    "type": "debug",
    "z": "kal_tab_1",
    "name": "Raw",
    "active": true,
    "tosidebar": true,
    "console": false,
    "tostatus": false,
    "complete": "payload",
    "targetType": "msg",
    "statusVal": "",
    "statusType": "auto",
    "x": 520,
    "y": 120,
    "wires": []
  },
  {
    "id": "kal_dbg_filt",
    "type": "debug",
    "z": "kal_tab_1",
    "name": "Filtered",
    "active": true,
    "tosidebar": true,
    "console": false,
    "tostatus": false,
    "complete": "payload",
    "targetType": "msg",
    "statusVal": "",
    "statusType": "auto",
    "x": 700,
    "y": 200,
    "wires": []
  }
]