Man machine systems can be simple or complex. Simple man-machine system, such as wood sawing; Complex, such as flying an airplane. A complex man-machine system often contains many individual man-machine systems. Man machine system can also be divided into open loop system and closed loop system.
In the closed loop man-machine system, people can further adjust and control the work of the machine according to the feedback information of the machine work; Open loop man-machine system cannot. Closed loop systems are often more effective than open loop systems. Man machine system design usually adopts closed loop system.
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