Industrial Internet of Things (often IIoT) means using many small, connected devices in industry. These devices have sensors. They send data to computers and to each other over a network or the Internet. The goal is to watch machines, control them better, and make work safer and cheaper.
IIoT is a part of the wider internet of things. It focuses on places like factories, energy plants, farms, mines, transport, and warehouses. Devices measure heat, pressure, speed, and many other things. The data helps people and software to make quick decisions.
Ideas that led to IIoT began in the late 1900s. Factories first used programmable controllers and later used computer networks. When the Internet became common, makers started to connect machines more widely. This allowed data to move fast and cheaply between many devices.
An IIoT system usually has:
Sometimes the data is processed near the machine. This is called edge computing. It reduces delay and saves network use, which helps for real-time control.
Common uses include:
IIoT can improve safety and save money. It can reduce unplanned stops, lower energy use, and help people make better plans. Small changes across many machines can add up to large gains.
Security is a major risk. Each connected device can be a new way for an attacker to enter a system. Good practice includes strong passwords, updates, network separation, and monitoring. Standards like IEC 62443 give rules for protecting industrial systems.