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Human Machine Interface (HMI)

Human Machine Interface (HMI) is a term used to describe the interface between humans and machines. It refers to the interface technologies used to present information to humans and enable them to interact with the machines. HMI can lay the foundation for humanized interaction with machines, which can help improve the efficiency of machine operation and bring better user experience.

Application Field

The application scope of HMI covers many industries such as automotive, power, medical, aviation, food, industrial control, metering, etc. Especially in industrial automation, HMI is widely used to display operation states, give instructions, set parameters, and provide information feedback, which greatly simplifies the interaction process between humans and machines. Therefore, HMI is vitally important for the realization of a user-friendly and safe machine system.

Working Principle

The working principle of HMI mainly consists of three parts: data acquisition, analysis & display, and process control. In data acquisition, human-machine interface collects, stores, and analyzes machine or system state data from other sensors, actuators, control units, and databases. In data analysis & display, the acquired data will be preprocessed by the HMI according to user requirements, then shows the data in real-time by interactive forms. In process control, if users need to make any settings adjustments or want to control the machine, the HMI will send relevant control signals to the other circuit or system.

Conclusion

Human Machine Interface (HMI) is a term used to describe the interface between humans and machines, which can make operations more efficient and user experience better. It covers a wide range of application areas in the areas of automotive, power, medical, aviation, food, industrial control, and metering. The working principle of HMI mainly includes three parts: data acquisition, analysis & display, and process control. With the development of technology, HMI will definitely bring more convenience and better user experience in the future.

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