We now know what IoT is, as well as some general functionalities, but how does it work? Sensors are the name of the IoT game, and they work to gather data in various ways. Whether these IoT sensors measure motion, weight, light, mileage, temperature, speed, proximity, or sound, their data gathering is the first phase in the IoT process.
Once the information is “gathered,” the device sends the data to another IoT device. This is commonly called a “Gateway.” Ideally, this object takes all the data, and analyzes, filters, and distributes it to the right destinations. The data arrives, and the receiving device can act upon the information sent. Confused? Here is an example.
Imagine you are reading a book in an IoT self-driving Uber. As you turn the next page, a smart-city streetlamp scans the traffic and sends the data to a server that processes traffic information. A collision occurred on the corner of Future Street and Technology Lane. Another smart streetlamp scans this accident and sends it to the Gateway. The Gateway ignores normal scans, such as one showing the temperature is 72ºF, but it catches the accident alert. The Gateway then “sends” this important data to the traffic information server that “acts” by notifying your Uber to take a different route to your desired destination.
*You could summarize how IoT works in three easy steps. The Gathering, The Sending, and The Acting. Remember these three things, and you will know how IoT works.*