DI-VISOR is a radar that uses a microwave sensor to open a door to detect motion, infrared curtain technology for user safety, and projection to provide information to the public. The one-way radar saves energy of the building and the three-dimensional infrared curtain protects people from any contact with the door. It provides the addition and subtraction of the number of people at the entrance and exit to determine the excess capacity of the interior to which it responds by locking the door and the beginning of the projection. After the specified number of people leave the interior, the door automatically unlocks again for entry. People are informed about a change by a change in the projection.
