5、fety.Thereforewidelyusedinmachinebuilding,metallurgy,electronics,lightindustryandatomicenergysectors.Thepneumaticpartofthedesignisprimarilytochoosetherightvalvesanddesignareasonablepneumaticcontrolloop,bycontrollingandregulatingpressure,atcompressedneceengththdirectionprocedurework.The in
6、verted pendulum is a typical high order system, with multi variable, non-linear, strong-coupling, fleet and absolutely instable. It is representative as an ideal model to prove new control theory and techniques. During the control process, pendulum can effectively reflect many key problem
7、s such as equanimity, robust, follow-up and track, therefore.This paper studies a control method of double inverted pendulum . First of all, the mathematical model of the double inverted pendulum is established, then make a control design to double inverted pendulum