sondt2709 / motion-detect-js

Motion Detect JS

Motivation

I bought a IP camera (TP-Link Tapo C200) and I would like to get notification when it detect any motion.

But it did not support automation, I only can keep my eyes on Tapo app to aware the motion change.

Therefore, I make a function to do that.

Introduction

This function include 2 handler

rtsp_handler.js

This file will grab single frame from RTSP stream.

It use FFmpeg to do

img_handler.js

This file will receive 2 images and detect the difference.

It use OpenCV to do

Get started

Download opencv.js file (I used version 4.5.2) and put it to this folder

Run npm install

Provide the base.jpg to this folder, It will be treated as the first image, the second image will be compared to the first and find the difference

Usage

Commandline

Just enter the following command

npm start -- --url "<your_url>"

You also can create .env file, put URL variable to there and run npm start.

In the case you're using C200 camera, the URL should be rtsp://<usr>:<pwd>@<ip>:554/stream1.

Function

For example, create a js file (i.e app.js) at parent folder

Put this script to file and adjust URL, motion-detect-js folder path

const fs = require('fs')
const smartCam = require('./motion-detect-js')

const image = fs.readFileSync('./base.jpg')
smartCam(image, 'rtsp://usr:pwd@192.168.1.2/stream1').then(() => {
    console.log('SUCCESS !!!')
}).catch((err) => {
    console.log(err)
    console.log('ERROR !!!')
})

Put a image file to folder (base.jpg)

Open terminal at your js file path (app.js)

Exec node app.js and look output

What's next

I'm going to import this function to Node-RED.