I am currently gathering information for my thesis about smart home implementaton with a use of blockchain. The blockchain usage is a requirement from my thesis supervisor and I have huge problem with finding out how blockchain technology may be useful in home automation.
What I have already considered is that there are two types of blockchain which I can use: private and public.
The public blockchain won't be useful at all, because of long time to achieve consensus and every transaction costs money (fee for miners).
I also don't see any adventage of private blockchain over regular database in such application. There are two reasons:
-I won't be able to store blockchain on every smart home device, because they all have limited space. So If I need to store blockchain in some centralised way, I think it looses it's immutability adventage.
-The public key cryptography is a very nice thing, but I can archieve that also in a regular database, so I don't see the need to implement blockchain for that.
So am I not seeing something? How use of blockchain may be helpful is such a small project?
Thanks in advance for any advice! :)