基于单片机的数字显示体温计设计摘要本文针对传统的测温仪器自身存在的诸多缺点以及在现实生活中所暴露的使用不便，缺少安全性等缺陷，提出了一种非接触式红外测温系统设计方案。该系统是以STC89C52作为红外测温传感器数据传输和控制核心。此外，还设计了液晶显示器、功能按键等外围模块。该系统最大的创新之处在于实现基本的非接触式温度测量功能，它的安全性，方便性更有利于普通百姓的使用。本次红外测温系统的设计简化了电路结构，提高了测温的稳定性及可靠性。该系统的反应速度快、传输效率高、测量精度高、可靠性高等优点，将会在和传统测温仪器的竞争中脱颖而出，在不久的将来一定会具有广阔的市场前景。关键词：STC89C52；红外测温；数字显示DigitalDisplayThermometerDesignDasedonsinglechipmicrocomputerAimingatdisadvantagesofthetraditionaltemperaturemeasurementinstrumentownexistenceandexposureofdifficulttouseinreallife,thelackofsecurity,thispaperproposesanon-contactinfraredtemperaturemeasurementsystemdesign.ThesystemisbasedonSTC89C52asinfraredmeasuringtemperaturesensordatatransmissionandcontrolcore.Inaddition,designthefunctionofliquidcrystaldisplays,buttonsandotherperipheralmodules.Thebiggestinnovationinthesystemrealizesthebasiccontactlesstemperaturemeasurementfunction,itssafety,convenienceismoreadvantageoustotheuseofthecommonpeople.Theinfraredtemperaturemeasurementsystemisdesignedtosimplifythecircuitstructure,improvesthestabilityandreliabilityofmeasuringtemperature.Thesystemresponsespeed,hightransmissionefficiency,highmeasurementprecision,highreliability,etc.Willbeincompetitionandthetraditionaltemperaturemeasurementinstruments,inthenearfuturewillhavebroadmarketprospects.Keywords：STC89C52；InfraredTemperatureMeasurement；DigitalDisplay目录1总设计方案论述.........................................................................................................61.1选题的背景及意义.........................................................................................61.2课题的研究现状与发展趋势........................................................................61.2.1研究现状............................................................................................61.2.2发展趋势.............................................................................................72红外数字显示测温系统硬件电路设计.....................................................................82.1红外数字显示测温系统基本原理与构成.....................................................82.1.1红外数字显示测温系统基本原理.....................................................82.1.2红外数字显示测温系统构成.............................................................82.2单片机的主控电路设计.................................................................................82.2.1STC89C52芯片简介.............................................................................82.2.2系统主控电路...................................................................................102.3红外温度传感器模块电路的设计...............................................................102.3.1TN901红外测温模块.........................................................................112.3.2红外测温原理...................................................................................112.3.3红外测温模块的工作时序...............................................................132.3.4红外测温模块温度值计算..............................................................132.3.5红外...
