编号本科生毕业设计基于FPGA的多路温度采集与处理系统的设计FPGA-basedMulti-channelTemperatureAcquisitionandProcessingSystem2011年06月摘要目前温度测量主要通过单片机来实现控制，但单片机是基于顺序语言的，其描述过程繁琐，信号采集频率受单片机始终频率的限制，难于实现高速的温度测量且不易在线修改，由于传感器多数采用的分立元件，如热敏电阻，热电偶等，精度很低，远远不能满足实际使用所需要的高精度测温度要求，笔者采用集成温度传感器，是传统传感器和集成电路融为一体，极大地提高了传感器的性能，具有测温精度高，复现性好、线性优良、体积小、热容量小、稳定性好、输出电信号大等优点。更重要的是采用现场可编程门阵列（FPGA）实现温度测量比采用单片机大大改善设计效果，可实现高速的温度测量。文中阐述了FPGA的实现方法及如何利用FPGA器件实现多路温度测量。由于FPGA具有集成度高，高速、高效率，内部有嵌入式阵列块等特点，易于实现FIFO和ROM，可使整个温度测量系统主要由硬件实现。关键词：fpga，18b20,12864液晶Abstract（居中）TemperaturemeasurementiscurrentlyachievedmainlythroughtheMCUcontrol,SCMisbasedontheorderoflanguage,anditsdescriptionoftheprocesscumbersome,dataacquisitionfrequencyoftherestrictionsbytheMCUclockfrequency,high-speedtemperaturemeasurementisdifficultandnoteasilymodifiedonline,themajorityofsensorsusedindiscretecomponents,suchasthermistors,thermocouples,etc.,theaccuracyisverylow,farfrommeetingtheneedsoftheactualuseofprecisionmeasuringtemperaturerequirements,theauthoradoptsanintegratedtemperaturesensor,ablendoftraditionalsensorsandintegratedcircuits,whichgreatlyimprovedtheperformanceofthesensor,withtemperaturemeasurement,highprecision,goodreproducibility,goodlinearity,smallsize,smallheatcapacity,goodstabilityandtheadvantagesoflargeoutputsignals.Moreimportantistheuseoffieldprogrammablegatearray(FPGA)toachievetemperaturemeasurementssignificantlyimprovethedesignthantheeffectofusingsinglechip,enablinghigh-speedtemperaturemeasurement.PaperdescribestheFPGAimplementationofmethodsandhowtouseFPGAdevicestoachievemulti-channeltemperaturemeasurement.TheFPGAwithhighintegration,high-speed,highefficiency,theinternalcharacteristicsofembeddedarrayblock,easytoimplementFIFOandROM,makethewholetemperaturemeasurementsystemconsistsofhardware.Keywords:FPGADS18B20JM12864目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc294361390"摘要PAGEREF_Toc294361390\hIHYPERLINK\l"_Toc294361391"AbstractPAGEREF_Toc294361391\hIIHYPERLINK\l"_Toc294361392"第一章绪论PAGEREF_Toc294361392\h1