A system that fully replaces a classical way of doorbell ringing with an easy-to-use smartphone app only, without the need for additional equipment.
Some people living in large building blocks don't like the fact that their last name is clearly stated and seen by any passenger (especially if they are public figures) -lack of anonymity
Classical doorbells in residential buildings consist of a board with tenants' last names and doorbells and sometimes hundreds of in-apartment devices that allow residents to permit entry to the building - costly to implement and maintain; when broken, takes a lot of time to repair since it's paid by the building manager
People delivering marketing flyers and catalogues often ring random people just to get the doors opened - irritating
In the age of fast developing technology, we need more flexible and easy-upgradeable smart solutions like this
Compared to the existing solutions (like these, these or these), this one would consist only of a smartphone app installed on both phones - the one ringing on the door and the one answering (and no physical camera or a door bell).
When a person comes to the door, it opens an app and scans the QR code of the house (or a house number with discrete QR code). The code is connected to the "receiver's" phone which immediately starts to ring. A person that rang a bell gets his microphone and camera automatically turned on. A person answering has multiple options: to answer, hear and see the front-facing camera of the ringer or to decline. If a person answers, the video chat starts and a person can ask the ringer anything. It can also unlock the door. If it declines, a person ringing gets an option to leave a message.
If you live in a residential building with lots of apartments, a person would scan the QR code and get a search bar. It would write your last name and click search. If there lives somebody with that last name, it would show up on the list. The procedure would be the same from then on.
No last names displayed on the doorbell boards
Easy finding of the desired last name
Reduced random doorbell ringing
Cheap and upgradeable system that uses existing technology (smartphones)
How to make it available when there is no internet? Bluetooth?
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