ࡱ> )` Rjbjbj {{ !f f f f ddd4%%%h(&<'<^Z'T((((,,,^ ^ ^ ^ ^ ^ ^$+ahc.^]d,,",,,.^f . $((^T5T5T5,\ ^(d(^T5,^T5T5DD|NdPE(x' 0"H%2D],^0^D~+d3+d$PEPE +ddHO,,T5,,,,,.^.^4j,,,^,,,,df f f   MACROBUTTON MTEditEquationSection2 Equation Chapter 1 Section 1 SEQ MTEqn \r \h \* MERGEFORMAT  SEQ MTSec \r 1 \h \* MERGEFORMAT  SEQ MTChap \r 1 \h \* MERGEFORMAT NyYVlQX:gAmSO)n^c6R |~ hT g1 Ni`xQ1 ue$1 Ru1 1.Sele'Yf[ 5ulOo`] zf[b [Y ] 750021 Xd []N5uRlQX:gqSO)n^c6R|~wQ g'Y`'`0~nT0^~'`vR`yr'` )n^c6R]&^[I{:p NWNL]eQ_STM32YVlQX:gv)n^c6R|~0Ǒ(uSTM32F103ZET6:N_c6RhV [sGr NUCOS-IId\O|~TGUISƉSLub v^(ucQpel:NW@x9eۏvPIDc6RV{eu[)n^ۏLc6R0gTN]N5uRlQX:g)n^:Nc[a ^z2N~c6R|~Simulink!jW[^PIDc6RۏLc6RHegNw vQe'Y'Y)w 3z`]\ bpbRRX:_0~ghfǑ(u勧c6R|~>fW9eUN|~v^RTh'`0d\O|~^(ucؚNs:WN:gNNzfS z^ te*N|~c6RHeg}Y '`Oo0 sQ.͋5uRlQX:g PIDSTM32)n^c6R -NVR{|STP273 e.sh_xA The design of a multi-loop temperature control system of fluid injection molding machine Zhou Peng1 Hu En dian1 Zhao Wen xian1 Liu Gan lin1 School of Electrical and Information Engineering Northern University for Nationalities, Yinchuan 750021 China) Abstract: For the melt temperature control system of industrial electric injection molding machine with a great inertia, time delay, nonlinear dynamic characteristics, its temperature control bandwidth of the error is great, the essay designs based on STM32 embedded multi-loop temperature control system of the injection molding machine. STM32F103ZET6 is used as microcontroller and it has on-chip UCOS-II operating system and GUI visual interface, the system is based on the law by describing function of improved PID control strategy for temperature control. Finally, the essay looks the industrial electric injection molding machine temperature controlled as object, the establishment of a cascade control system Simulink model uses the adaptive PID control to control the effect of the simulation, the adjustment time is shortened, the steady-state error is small, anti-disturbance capacity is enhanced. The results showed that the use of the control system significantly improves the adaptability and robustness of the system. Operating System improves the interactive intelligence field, the system has good control effect and excellent performance. 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