摘 要


溫度是表征物體冷熱程度的物理量，是工業(yè)生產(chǎn)的一個非常重要的參數(shù)。對溫度的實時監(jiān)測可以更有效的利用風(fēng)力資源，本文介紹一套對溫度數(shù)據(jù)的實時采集系統(tǒng)，以便對風(fēng)場溫度進(jìn)行及時的分析處理。溫度傳感器是能感受溫度并轉(zhuǎn)換成可用輸出信號的傳感器，本文所設(shè)計的是用鉑膜電阻溫度傳感器（PT100）來監(jiān)測大氣的溫度，鉑電阻具有準(zhǔn)確度高、性能穩(wěn)定、互換性好、耐腐蝕及使用方便等一系列優(yōu)點，一直是工業(yè)測控系統(tǒng)中廣泛使用的一種比較理想的測溫元件。本文使用的單片機(jī)為C8051F350，C8051F系列單片機(jī)設(shè)計有片內(nèi)調(diào)試電路與JTAG口可以實現(xiàn)非侵入式在片調(diào)試，對于溫度的監(jiān)測，有精度高，測量準(zhǔn)確，容易調(diào)試等優(yōu)點。通過PTR2000的無線傳輸模塊，對現(xiàn)場及監(jiān)控室進(jìn)行無線連接，從而達(dá)到對風(fēng)場溫度監(jiān)測的目的。

關(guān)鍵詞：溫度；PT100；C8051F350；PTR2000


 


 


 


 


 


 


 


 


Abstract

 

Temperature is characterized by the degree of that physical objects is hot and cold,it is industrial production of a very important parameter. Real-time monitoringof temperature can be more efficient use of wind resources, this article describes aset of real-time data acquisition system,so that the temperature can be timely analysis and processing. Temperature sensor is able to feel the temperature and it can convert into a usable output signal of the sensor, this article is designed platinum resistance temperature sensors (PT100) to monitor air temperature, platinum resistance is of some advantages.For example，high accuracy, stable performance, interchangeability, corrosion-resistant and easy to use and so on,It is ideal temperature components,and has been widely used in industrial measurement and control system. the microcontroller is C8051F350 in this article, C8051F series microcontrollers have on-chip debug circuitry design JTAG port and it can be achieved with non-invasive on-chip debugging for temperature monitoring, a high precision, accurate measurement, easy to debug and so on. By PTR2000 wireless transmission module, on-site and control room can be connected wirelessly，so that it can achieve the temperature of the wind monitoring purposes.

Keywords: temperature；PT100； C8051F350；PTR2000


 




 


 


 


 


目  錄


引  言 1

第一章 概述 3

1.1課題的背景 3

1.2 課題研究的目的和意義 3

1.3 國內(nèi)外研究現(xiàn)狀 3

第二章 系統(tǒng)的總體設(shè)計 5

2.1 微處理器的選型 5

2.2 溫度傳感器 6

2.2.1 溫度傳感器的工作原理 6

2.2.2 溫度數(shù)據(jù)的采集 7

第三章 主要硬件電路模塊的設(shè)計 8

3.1 穩(wěn)定電源電壓的選用 8

3.2 輸入平衡電橋及A/D轉(zhuǎn)換 8

3.2.1 線性化方法的實現(xiàn) 11

3.3微處理器模塊 12

3.3.1晶振電路 12

3.3.2 單片機(jī)的引腳介紹 13

第四章 無線通信技術(shù) 14

4.1 無線通信模塊介紹 14

4.1.1 PTR2000的主要特征 14

4.1.2  PTR2000的引腳排列及功能 15

4.1.3 軟件編程 15

4.1.4 PTR2000和單片機(jī)的硬件連接 16

4.2 串行通信MAX232 16

結(jié) 論 19

參考文獻(xiàn) 20

謝 辭 22