Given that with this project the aim was for the user to be able to use a lift without the need to install additional infrastructure on the lift's pushbutton panels as well as additional software on the user's mobile device.
A system based on QR codes was developed to be able to use the lifts from any mobile device with the only requirement that it had an Internet connection.
Its use should also be anonymous, so that, it is not necessary to register on any platform. It also had to be universal, using generalist technologies that replicate the use of the usual lift mechanism without having to add additional steps for the user. while using it.
The process would follow the following steps:
1. The QR code available on the lift door is scanned.
2. It is indicated if we want to go up or down.
3. The QR code is scanned inside the cabin.
4. It is indicated to the floor or floors that we want to go in case there are several people inside the lift but they need to go to another floor different from the one of the user who is using the system.