There are many ways to implement human-machine interface, such as computer-based software interface, touch screen, buttons, indicators, voice recognition, etc., among which touch screen is currently a more popular and commonly used way. The design of human-machine interface needs to take into account the operator's usage habits, ergonomics, ease of use of the interface and other factors, so that it can improve the efficiency and reliability of the control system and reduce the occurrence of operating errors and accidents.
What are the HMIs
There are various forms and types of human-machine interfaces according to different application scenarios and purposes of use. The following are some common HMIs:
Touch screen: Touch operation using fingers or a special pen can realize the advantages of easy operation and simple interface.
Mechanical buttons: Human-computer interaction is achieved through the switch of physical buttons, which is simple to use, intuitive and reliable.
Voice recognition: Using voice recognition technology to convert human voice commands into commands that can be recognized by the machine.
Infrared Remote Control: Uses infrared light to transmit commands and operate equipment from a distance.
Simple Indicator: Use LED lights or LCD displays to show equipment status, parameters and other information.
VR/AR: Use virtual or augmented reality technology to get a more realistic interface experience through human eyes and ears.
Different types of HMIs have their own advantages and applicability in different application scenarios and need to be selected and applied according to the actual situation.
The difference between HMI and touch screen
Human-machine interface (HMI) refers to the interface between human and machine interaction, is a visual means to establish contact between the human operator and the machine, the technology of information interaction. Touch screen is an implementation of HMI, which can be operated by touch with fingers or a special pen to achieve interaction with the device.
Therefore, the differences between HMI and touch screen are
Different definitions: HMI is a concept that refers to the interface between people and machines for interaction; and touch screen is a way of implementation, which is a technology that uses touch operation to achieve human-computer interaction.
The scope is different: human-machine interface not only includes touch screen as an interaction method, but also includes mechanical buttons, voice recognition, infrared remote control and other forms and types; while touch screen is only one way of implementing human-machine interface.
Different application scenarios: touch screen is mainly applied to the design of interactive interfaces, such as smart phones, tablet PCs, industrial control systems, etc.; while HMI is widely used in industry, medical, transportation, communications and other fields, including various forms of interaction.
Therefore, touch screen is only one way to achieve the human-machine interface, and the human-machine interface also includes many other forms and types.