毕业论文基于ATC单片机的超声波测距的设计.doc

摘 要 随着科技的发展，人们生活水平的提高，城市发展建设加快，城市给排水系统也有较大发展，其状况不断改善。但是，由于历史原因合成时间住的许多不可预见因素，城市给排水系统，特别是排水系统往往落后于城市建设。因此，经常出现开挖已经建设好的建筑设施来改造排水系统的现象。城市污水给人们带来了困扰，因此箱涵的排污疏通对大城市给排水系统污水处理，人们生活舒适显得非常重要。而设计研制箱涵排水疏通移动机器人的自动控制系统，保证机器人在箱涵中自由排污疏通，是箱涵排污疏通机器人的设计研制的核心部分。控制系统核心部分就是超声波测距仪的研制。因此，设计好的超声波测距仪就显得非常重要了。? 本设计采用以AT89C52单片机为核心的低成本、高精度、微型化数字显示超声波测距仪的硬件电路和软件设计方法。整个电路采用模块化设计，由主程序、预置子程序、发射子程序、接收子程序、显示子程序等模块组成。各探头的信号经单片机综合分析处理，实现超声波测距仪的各种功能。在此基础上设计了系统的总体方案，最后通过硬件和软件实现了各个功能模块。相关部分附有硬件电路图、程序流程图。? 经实验证明，这套系统软硬件设计合理、抗干扰能力强、实时性良好，经过系统扩展和升级，可以有效地解决汽车倒车、建筑施工工地以及一些工业现场的位置监控。?? 关键词：AT89c52;?超声波; 测距 Abstract With?the?development?of?science?and?technology,?the?improvement?of?peoples?standard?of?living,?speeding?up?the?development?and?construction?of?the?city.?urban?drainage?system?have?greatly?developed?their?situation?is?constantly?improving.?However,?due?to?historical?reasons?many?unpredictable?factors?in?the?synthesis?of?her?time,?the?city?drainage?system.?In?particular?drainage?system?often?lags?behind?urban?construction.?Therefore,?there?are?often?good?building?excavation?has?been?building?facilities?to?upgrade?the?drainage?system?phenomenon.?It?brought?to?the?city?sewage,?and?it?is?clear?to?the?city?sewage?and?drainage?culvert?in?the?sewage?treatment?system.?comfort?is?very?important?to?peoples?lives.?Mobile?robots?designed?to?clear?the?drainage?culvert?and?the?automatic?control?system?Free?sewage?culvert?clear?guarantee?robot,?the?robot?is?designed?to?clear?the?culvert?sewage?to?the?core.?Control?System?is?the?core?component?of?the?development?of?ultrasonic?range?finder.?Therefore,?it?is?very?important?to?design?a?good?ultrasonic?range?finder.???? At?the?core?of?the?design?using?AT89C51?low-cost,?high?accuracy,?Micro?figures?show?that?the?ultrasonic?range?finder?hardware?and?software?design?methods.?Modular?design?of?the?whole?circuit?from?the?main?program,?pre?subroutine?fired?subroutine?receive?subroutine.?display?subroutine?modules?form.?SCM?comprehensive?analysis?of?the?probe?signal?process