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As a means of short distance communication, Bluetooth is widely used to connect bluetooth devices with mobile phones or computers.
Here, we use the Bluetooth network built in the lift shaft to connect the phone and the control board via Bluetooth module. When passengers activate bluetooth near the elevator, they can see the elevator control interface in their smartphones.
Otherwise, you can scan the QR code of that elevator to quickly establish one-to-one communication without interfering with each other.
With a simple click on the screen, you can call the elevator and tell it where you’re going.
Small size, easy to install
Offline recognition, no network required
Easy compatibility to most elevator control systems
Module design facilitates maintenance and function expansion
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