水位监测报警系统的设计概要.doc

株洲师范高等专科学校物理与电子工程系毕业论文水位监测报警系统姓名:秦雄指导老师:肖利君专业:应用电子技术班级:07级应用电子班学号:04207122时间:2010-5-5至2010-5-28摘要本水位监测报警器主要目标是使用5V低压直流电源(也可以用3节5号电池代替就可以对5~15厘米的水位进行监测,用LED显示和数码管显示水位,并可以对不再此范围内的水位发出报警。主要采用CD4066、74LS86、74LS32、CD4511芯片,再加上数码管、蜂鸣器、发光二极管、电阻这些器件组成一个简单而灵敏的监测报警电路,操作简单,接通电源即可工作。因为大部分电路采用数字电路,所以本水位监测报警器还具有耗能低、准确性高的特点。关键字:译码电路,报警电路,监测电路AbstractThewaterlevelalarmmonitoringtheuseof5Vlow-voltageDCpower(canalsousethreebatteriesreplacedonthe5thwillbeableto5to15centimetersofwaterlevelmonitoring,withLEDdisplayanddigitaldisplayofwaterlevel,andthiscannolongerWithinthescopeofawaterlevelalarm.MainlyCD4066,74LS86,74LS32,CD4511chips,coupledwithdigitalcontrol,buzzer,light-emittingdiode,theresistanceofthesedevicescomposedofasimpleandsensitivemonitoringalarmcircuits.Becausethemajorityofcircuitsusingdigitalcircuitry,sothewaterlevelmonitoredalarmsystemalsohaslowenergyconsumption,highaccuracyofthecharacteristics.Keyword:Decodingcircuitalarmcircuitmonitoringcircuit.目录摘要............................................................................................................................I目录...........................................................................................................................II第1章绪论..................................................................................................................1第2章总体方案..........................................................................................................32.1系统总方案设计...............................................................................................32.2各模块电路方案分析与设计...........................................................................32.2.1水位信号模块的选择.............................................................................32.2.2信号转换模块的选择.............................................................................42.2.3编码模块和数码显示模块的选择.........................................................4第3章系统的芯片概述...........................................................................................