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青岛理工大学毕业设计
//MS延时函数(12M晶振下测试)
//**************************************************** void Delay_ms(unsigned int n) { unsigned int i,j; for(i=0;i for(j=0;j<123;j++); } 32 青岛理工大学毕业设计 附录B：元器件清单 器件名称 1/4W电阻 1/4W电阻 1/4W电阻 10K排阻(103) 整流二极管 电解电容 电解电容 电解电容 陶瓷电容 稳压芯片 陶瓷电容 三极管 程序存储器 蜂鸣器 电源插头 HX711模块插口 4*4矩阵键盘插口 晶振 液晶显示器 LED发光二极管 电平转换芯片 单片机 按键开关 器件型号 1K 4.7K 10K 1K 1N4007 10u/16v 100U/25V 470U/16V 30P 78L05 104 S8550 AT24C02 5V有源蜂鸣器 CON2 CON6 CON8 12M LCD1602 LED MAX232 STC89S52 SW-2 对应PCB位号 R0，R3，R4 R6 R1，R2，R5 RP1 D0 C6 C4 C1 C7，C8 U1 C2，C5，C14，C15，C16，C17，C18 Q1 U3 BZ1 J1 J4 J6 Y1 LCD1 LED0 U2 U4 SW1 33 青岛理工大学毕业设计 附录C：系统硬件框图 VCCQ2U7161514131211109C181049012J4P31P30123456CON6C201ufC21R1220KC191ufR138.2K12345678HX711161514131211109P20P21VCCC14J059483R2IN72T2OUT61C15104U21C1+2V+3C1-4C2+5C2-6V-T2OUT7T2OUTR2IN8R2INC17104MAX232104C230.1ufC16104VCCGNDR1OUTR1INR1OUTT1INT2INR2OUTDB9232串口通信电路U178L05321电源系统D01N4007J1C1R141k0.1ufSW1VCCVCCC22R047U/16VR15C41kR41k0.1uf220U/16VC21041KHX711AD模块电路图RP110KLCD1S0LED051单片机最小系统U4P10P11P12P13P14P15P16P17J6RSET87654321CON81234567891011121314151617181920P10P11P12P13P14P15P16P17ResetRXD/P30TXD/P31INT0/P32INT1/P33T0/P34T1/P35WR/P36RD/P37X2X1GNDC7X130PY1C8X230PVCCP00P01P02P03P04P05P06P07EA/VPALE/PPSENP27P26P25P24P23P22P21P204039383736353433323130292827262524232221VCCVCC2.2KR6C610u/16vEEPROMLED1U31234A0VDDA1WPA2SCLVSSSDAAT24C02R110kR210kVCCC5104876P365P37GNDP11R510K红灯LED2P1012345678910111213141516VCCGNDVCCVORSWREDB0DB1DB2DB3DB4DB5DB6DB7BG VCCBG GNDLCD1602绿灯液晶接口P24P23P22P21P20VCC 34 青岛理工大学毕业设计 附录D：外文资料 Applying fuzzy control to control the temperature of glue , through the results of simulation and application , fuzzy controllers can be competent for it's salt. An lh control system structure , based on high speed ethernet , field bus , programmable logic controllers and general purpose pcs , is proposed . after analyses of the key control elements - temperature and composition , the thesis gives detailed design of the main system control functionalities : electrode control system , alloy material adding control system and operation monitoring system. It ' s the key to implement the full - scale automatization of water plant how to design and develop more rational control of adding material . and figuring out the precise quantity control of precipitator alum in the deposition pools is an important problem of the whole water industry. With the improvement of the living standards, people's requirement on the production and life of the people is gradually increased, the growing material and cultural demands to improve the technology, but because the production of artificial control of production and life, charging takes larger in response to human and error huge is poor, therefore, in order to meet the needs of production and life, become system control the development of automatic feeding machine is particularly important. Automatic feeding machine control system of material weight measurement, analysis, control, so that the material in a reasonable range. In order to save cost, production efficiency has been greatly improved. Be the first to bear the brunt in automatic feeding machine system, choose the proper pressure sensor, are decisive factors, this paper takes STC89C52RC microcontroller as the core, a high measuring accuracy, convenient debugging the design, through the microcontroller module, the sensor module and display module, using LEDs to simulate the control system of automatic feeding machine. This paper was designed by the single chip control module and LCD1602 LCD as display module, pressure sensor is measuring module. The principle is to control 35