HMI is an abbreviation for Human Machine Interface, which provides a user-friendly interface for PLC control systems, I/O modules or other control systems, while the HMI interacts with these control systems with data and control signals via protocols such as RS232, 485, MODBUS, CAN bus and so on. Because this interaction is real-time, which makes the HMI (human-machine interface) to realize the following key functions:
1, real-time monitoring of PLC, I / O module operation, and in the HMI image displayed;.
2, the operator can send control signals to the automation equipment through the HMI, so that the automation equipment can run in accordance with the intention of the manipulator.
Human-machine interface (HMI) is a technology widely used in modern industrial control, information processing, science and technology entertainment, medical and health care, education and training, etc. The following are some specific application scenarios:
1. Industrial control: HMI is widely used in factories, industrial production lines and other fields for real-time control, monitoring, configuration and other functions, often using touch screens, physical buttons and other devices.
2. Home automation: HMI is used in home control and smart home system, which can be operated and controlled by mobile APP, voice recognition, etc., such as smart door locks, smart home appliances, smart lighting and so on.
3. Technology and Entertainment: HMI is used in games, virtual reality, movies, TV, etc. It can be interacted and controlled by gesture, voice, touch, etc., such as smart handle, game speaker, VR helmet, etc.
4. Medical and Healthcare: HMI is used in medical equipment and health management systems, such as medical image monitors, health bracelets, heart rate monitoring equipment, etc., to realize fast, accurate and convenient measurement and monitoring tasks.
5. Education and training: HMI is used in classrooms, colleges and universities, training institutions, etc. It can be used in interactive whiteboards, touch computers and other devices to realize teaching and tutoring tasks, such as intelligent education software and interactive courses.
6. Public service: HMI is used in public facilities, transportation guidance, community information system, etc., such as payment terminals on buses, guidance screens in subway stations, etc., which provide a convenient and efficient service experience.
Overall, HMI technology provides more convenient, efficient and natural operation and control in various scenarios, which not only dramatically improves the work efficiency in various industries, but also provides users with a better service experience.
The application field of human-machine interface (HMI) determines that it must have the following characteristics:
1. man-machine interface (HMI) must have and a variety of self-control equipment to interact with data capabilities, which requires HMI integration of various types of PLC, I / O modules, a variety of bus protocols and other self-control equipment communication protocols; 2. man-machine interface (HMI) must have and a variety of self-control equipment to interact with data capabilities.
2. man-machine interface (HMI) should provide a tool software for customers to develop a specific control system based on the customization of the corresponding application; 3.
3. man-machine interface (HMI) must be industrial-grade products, can adapt to the industrial application environment, with reliable quality and excellent performance.