Definition of ergonomics

Ergonomics is defined as the application of anthropometry, human mechanics, labor physiology, labor psychology and other disciplines to study the structural and functional characteristics of the human body.

The research contents of ergonomics are as follows:

Provide the structural parameters of human body, such as size, surface area, specific gravity, center of gravity, and the relationship and possible range of various parts of human body when they are active.

It provides the output range of various parts of the human body, exercise habits and other human functional parameters, and analyzes the functional characteristics of human sensory organs such as vision, hearing, touch and skin feeling.

This paper analyzes the physiological changes, energy consumption, fatigue mechanism and adaptability to various labor loads during various working hours, and probes into the factors influencing people's psychological state at work and the influence of psychological factors on work efficiency.

The remarkable feature of ergonomics is that it not only focuses on the quality of each element, but also studies the people who use things, the things designed and the environment in which people and things exist as a system on the basis of careful study of the characteristics of people, machinery and environment. In ergonomics, this system is called man-machine-environment system. In this system, the interaction and interdependence among human, machine and environment determine the overall performance of the system. The theory of man-machine system design of this subject is to scientifically use the organic relationship among the three elements to seek the best parameters of the system.