Vacuum cleaning robots have gotten a lot more advanced over the past few years. In the near future, they will be able to monitor your home and interact with smart home devices in addition to keeping your rooms clean. Take the UNIBOT for instance. This robot moves in your home and lets you know when there are issues.
This robot can automate lighting. It alerts you when smoke is detected. As this video shows, the robot can also interact with thermostats, kitchen appliances, and other smart devices.