We are currently in the era of “industry 4.0”, so artificial intelligence (AI) and robots are becoming familiar to each of us. Robots now can be our friends and help us with our chores. We can communicate with them, give them orders and they will follow. A robot vacuum cleaner is one such entity. It can help you clean your home even when you are not there. Just give it an order through your phone app. In the market, there are many different types of robot vacuums. They are becoming more and more intelligent.