Aiming at deficiencies of decrease of control property and quality of service（ Qo S） caused by deadband sampling methods of Wi NCS

put forward an adaptive fuzzy deadband sampling algorithm. Using system control error and network delay to set up deadband threshold

adaptive deadband sampling adjusts network load variation amount in real time

automatically reduce amount of data packet transmission within index range of Qo P and Qo S of system

to capture network traffic variation and Qo S of network. Experiments show the method can not only reduce packet transmission amount

but also can effectively guarantee system control property. Adaptive fuzzy deadband sampling method is simple and easy to implement

and it has certain promotional value.