HMI systems, also known as Human Machine Interfaces, are devices that facilitate interactions between machines and humans. The HMI system will transmit information simultaneously while providing feedback to the operator. HMI systems are utilized in ever expanding applications from power plant controls to the touch screen of a cell phone.
Quick links to HMI Systems Information
How HMI Systems Function
Typically these devices will have two primary components to function. The first component is some form of input. The operator needs a way to input instructions to the device and this is done through switches, touch screens, toggles, keypads, and more.
The second important factor in a successful HMI system is output. The machine has to inform the human that the commands were received and then information is displayed or a function is performed. Output could even be as simple as a status light blinking to indicate that it received commands. Ergonomics and psychology have big influences on the HMI system industry. One of the main goals is to provide an easy, efficient, and user-friendly design for operating a machine.