iot security and home automation using raspberry pi

It is used for the home security / office & automation .It has Motion detection sensor and it is used to detect the motion of a person , after that web cam will be activated and it will scan an image, after scanning it will verify weather the person is authorized are not if the person is authorized it will open the door if not it will send the mail to the host .
Using an IOT App or a Webcam service Blynk host can control the door lock and fan .
Components used :
1.IR sensor
2.Web camera
3.Temprature sensor
4.Gas sensor
5.Raspberry pi 4