Challenges and discoveries
At first One "saw" very far away and tried to talk to the baristas or those in line.
Reconfigured the facial recognition system
We thought that cafe visitors would actively communicate with the assistant. But visual voice assistants are new to them. People are still wary of them, they don't dare to start a conversation.
Turned out to be poor psychologists
We took the Samsung Tab S7 tablet because it has a bright, thin display. But it turned out that in a noisy environment the tablet's built-in microphone does not work well. Because of inaccuracies in speech recognition and the bot did not always work well.
Wrong choice of hardware