数字式温度计的计_课程设计.docVIP

┊┊┊┊┊┊┊┊┊┊┊┊┊装┊┊┊┊┊订┊┊┊┊┊线┊┊┊┊┊┊┊┊┊┊┊┊┊长 春 大 学 课程设计纸 PAGE II数字式温度计的设计[摘要] 随着人们生活水平的不断提高,单片机控制无疑是人们追求的目标一，但人们对它的要求越来越高，要为现代人工作、科研、生活、提供更好的更方便的设施就需要从数单片机技术入手，一切向着数字化控制，智能化控制方向发展。本设计所介绍的数字温度测量系统测温范围从-10℃到85℃，测量精度为±0.5度，并且采用LED显示。该设计控制器使用单片AT89C2051，测温传感器使用DS18B20，用4位共阳极LED数码管实现温度显示，能准确达到以上要求。 [关键词] 数字式温度计 DS18B20 AT89C2051 数码管The design of the digital thermometer[Abstract] With people’s living standard rises ceaselessly, undoubtedly SCM control is one of the goals of the people’s to pursue, but people demand more and more of it for modern job, scientific research, life, providing more convenient facilities that needs microcontroller tech- nology developing from several of all towards digital control system, intelligent control direction. The design of the digital temperature measuring system measuring ranges from minus 10 degrees Celsius to 85 degrees Celsius, the measurement accuracy is 0.5 degrees Celsius, and useing of LED direct reading . This design uses AT89C2051 as single-chip microcomputer controller,as temperature sensor DS18B20, and a total of 4 cathode tube to realize LED digital temperature display.So it can [KeyWords] Digital thermometer DS18B20 AT89C2051 Digital tube PAGE I目录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc309064203 引言 PAGEREF _Toc309064203 \h 1 HYPERLINK \l _Toc309064204 第1章 总体方案设计 PAGEREF _Toc309064204 \h 2 HYPERLINK \l _Toc309064205 1.1 温度测量系统设计方案 PAGEREF _Toc309064205 \h 2 HYPERLINK \l _Toc309064206 1.2 显示部分设计方案 PAGEREF _Toc309064206 \h 2 HYPERLINK \l _Toc309064207 1.3 总体设计框图 PAGEREF _Toc309064207 \h 2 HYPERLINK \l _Toc309064208 第2章 系统硬件电路设计 PAGEREF _Toc309064208 \h 3 HYPERLINK \l _Toc309064209 2.1 单片机模块 PAGEREF _Toc309064209 \h 3 HYPERLINK \l _Toc309064210 2.1.1 AT89C2051功能及特性 PAGEREF _Toc309064210 \h 4 HYPERLINK \l _Toc309064211 2.1.2 单片机模块功能 PAGEREF _Toc309064211 \h 4 HYPERLINK \l _Toc309064212 2.2 温度采集部分硬件 PAGEREF _Toc309064212 \h 6 HYPERLINK \l _Toc309064213 2.2.1 温度传感器DS18B20 PA