https://github.com/IBM/node-red-tensorflowjs

var onoff = global.get("onoff") || "on";
let newMsg = {};
var chat = "your_telegram_chat_id_here";
var type = "message";
var message = "";
var count = 0;
var score = 0.0;
var onoi = ["chair", "couch", "bench"];   // onoi = "objects not of interest"

if (onoff == "on" || onoff == "all") {
  for (let object of msg.payload) {
    if (object.class.length > 2) {
      if (onoi.includes(object.class)) {
      } else {
        count++;
        score = (100 * object.score).toFixed(1);
        message =
          'TF CamBot detected a "' +
          object.class +
          '" with ' +
          score +
          "% confidence.";
        newMsg = { payload: { chatId: chat, type: type, content: message } };
        //console.log(newMsg.payload);
        node.send([[newMsg]]);
      }
    }
  }

  if (count < 1 && onoff == "all") {
    message = "TF CamBot detected nothing!";
    newMsg = { payload: { chatId: chat, type: type, content: message } };
    node.send([[newMsg]]);
  }
}

[{"id":"21dff30d.cdd83c","type":"tab","label":"NEO DETECT","disabled":false,"info":""},{"id":"940a9a8d.367588","type":"inject","z":"21dff30d.cdd83c","name":"Take Photo","topic":"","payload":"","payloadType":"date","repeat":"15","crontab":"","once":true,"onceDelay":0.1,"x":130,"y":180,"wires":[["f2a273c5.fc849"]]},{"id":"71a92361.dbad0c","type":"debug","z":"21dff30d.cdd83c","name":"","active":false,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","x":1000,"y":280,"wires":[]},{"id":"339bc42f.3b72fc","type":"tfjs-object-detection","z":"21dff30d.cdd83c","name":"","modelUrl":"","x":760,"y":180,"wires":[["71a92361.dbad0c","5ff0aa2f.76ba54"]]},{"id":"4442c40d.9bc1dc","type":"usbcamera","z":"21dff30d.cdd83c","filemode":"0","filename":"image01.jpg","filedefpath":"1","filepath":"/Users/Tim","fileformat":"jpeg","resolution":"2","name":"","x":530,"y":180,"wires":[["339bc42f.3b72fc","518f1480.b2223c"]]},{"id":"518f1480.b2223c","type":"image","z":"21dff30d.cdd83c","name":"","width":"240","data":"payload","dataType":"msg","thumbnail":true,"active":false,"x":760,"y":280,"wires":[]},{"id":"cddbc39f.fb82c","type":"comment","z":"21dff30d.cdd83c","name":"Check detected classes for specific object.","info":"","x":210,"y":280,"wires":[]},{"id":"6dc534c0.7946ac","type":"telegram sender","z":"21dff30d.cdd83c","name":"CamBot Send","bot":"995ad6d2.ff8ae8","x":1240,"y":100,"wires":[[]]},{"id":"5ff0aa2f.76ba54","type":"function","z":"21dff30d.cdd83c","name":"Detection Logic","func":"var onoff =global.get('onoff') || 'on';\nlet personDetected = false;\nlet newMsg = {};\nvar chat = 727630977;\nvar type = \"message\";\nvar message = \"\";\nvar count = 0;\nvar score = 0.0;\nvar onoi = [\"chair\", \"couch\", \"bench\"];\n\nif(onoff ==\"on\" ||onoff == \"all\")\n{\nfor (let object of msg.payload) {\n    if (object.class.length >  2 ) {\n        if (onoi.includes(object.class)) {\n        }\n        else {\n        count++;\n        score = (100*object.score).toFixed(1);\n         message = 'TF CamBot detected a \"'+ object.class+'\" with '+score+'% confidence.';\n         newMsg = {payload:{chatId:chat,type:type,content:message}};\n        //console.log(newMsg.payload);\n        node.send([ [ newMsg] ]);\n        }\n    }\n}\n\nif(count < 1 &&  onoff == \"all\"){\n    message = 'TF CamBot detected nothing!';\n       newMsg = {payload:{chatId:chat,type:type,content:message}};\n       node.send([ [ newMsg] ]);\n}\n}\n","outputs":1,"noerr":0,"x":1010,"y":180,"wires":[["6dc534c0.7946ac"]]},{"id":"492a7004.57b96","type":"telegram receiver","z":"21dff30d.cdd83c","name":"CamBot In","bot":"995ad6d2.ff8ae8","saveDataDir":"","x":110,"y":100,"wires":[["f2c0ca3b.61eac8"],[]]},{"id":"f2c0ca3b.61eac8","type":"change","z":"21dff30d.cdd83c","name":"Global: On/Off/All ","rules":[{"t":"set","p":"onoff","pt":"global","to":"payload.content","tot":"msg"}],"action":"","property":"","from":"","to":"","reg":false,"x":330,"y":100,"wires":[["168875ba.43431a"]]},{"id":"168875ba.43431a","type":"function","z":"21dff30d.cdd83c","name":"Confirm C2","func":"let newMsg = {};\nvar chat = 111111111;\nvar type = \"message\";\nmessage = \"TF CamBot is \"+msg.payload.content;\nnewMsg = {payload:{chatId:chat,type:type,content:message}};\nnode.send([ [ newMsg] ]);\n","outputs":1,"noerr":0,"x":530,"y":100,"wires":[["6dc534c0.7946ac"]]},{"id":"f2a273c5.fc849","type":"function","z":"21dff30d.cdd83c","name":"On || Off ?","func":"var onoff =global.get('onoff') || 'on';\nif(onoff =='on' || onoff =='all')\n{\nreturn msg;\n}\n\n","outputs":1,"noerr":0,"x":310,"y":180,"wires":[["4442c40d.9bc1dc"]]},{"id":"995ad6d2.ff8ae8","type":"telegram bot","z":"","botname":"YourCoolCambot","usernames":"","chatids":"","baseapiurl":"","updatemode":"polling","pollinterval":"300","usesocks":false,"sockshost":"","socksport":"6667","socksusername":"anonymous","sockspassword":"","bothost":"","localbotport":"8443","publicbotport":"8443","privatekey":"","certificate":"","useselfsignedcertificate":false,"sslterminated":false,"verboselogging":false}]