Virtual sensor network

Okay kiddo, imagine you have a bunch of houses and every house has a sensor. These sensors can tell you things like how hot or cold it is, how bright or dark it is, how much noise there is, and lots of other things. Now imagine, instead of going to every house to check the sensors, you have a special computer network that can read all the sensor information for you. This is called a virtual sensor network. It's like having invisible helpers who tell you everything about the houses without you having to go there!