More objects are becoming embedded with sensors and gaining the ability to communicate. The resulting information networks promise to create new business
models, improve business processes, and reduce costs and risks.
You are somewhat describing what has become known as "the Internet of things," or IoT. But it's not just sensors. Its sensors as well as controlled devices.
This is happening because the Internet helps to achieve whole new levels of automation, and any machine or process that becomes automated depends heavily of sensing. You can't control a valve without knowing the position of the valve, and the flow through it. Same applies to just about anything you want to automate. Sensing is an integral and critical part of any automation.
I would add, though, that this IoT has existed for very many years already, so I view the term as being a bit of journalistic hyperbole. Machines and entire factories have seen an increasing amount of automation, and specialized networks used for this in past decades have been migrating to Internet Protocols for a good long time already. But sure, the prevalence of this is now so great that, I suppose, people have had to give it a name.
Agreeing with the previous answer I would add one more argument. The smart home, smart city, intelligent facility management solution use the same automation and communication technologies around you, as well as the automation of the vehicles has a similar background.
Sensors will enhance the use of Internet. Sensors will, in my opinion, make the world of Internet more useful and will make the whole world closer and closer. Sensors integrated with the Internet might also cause security and privet issues.