I have been playing around with this idea for the last couple of hours now(seeing I actually need to study) and after my exams I'm thinking of building a protot

I have been playing around with this idea for the last couple of hours now(seeing I actually need to study) and after my exams I'm thinking of building a prototype like this using qr codes. Do you maybe have company names I can Google for to see how the market looks and if my idea is "unique" as I think it is?