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STC89C51單片機低溫災害溫度監測系統設計+程序

時間:2019-04-08 10:54來源:畢業論文
以STC89C51型單片機作為主控制器件,采用nRF24L01作為無線通信模塊,DS18B20 數字溫度傳感器為測溫元件,HJ1602A為溫度顯示器并設有低溫報警功能的智能溫度檢測系統

摘要: 為了避免低溫災害對農作物的生長繁殖一級農業經濟的破壞,就需要設計一種低溫災害溫度的監測系統。利用無線監測技術實時的采集氣候信息,系統能及時監測到低溫災害溫度并進行預警,對農作物持續穩定生長,提高農業經濟效益和農村經濟的發展具有重要的現實意義和使用價值。34406
通過對溫度監測系統的研究,設計了以STC89C51型單片機作為主控制器件,采用nRF24L01作為無線通信模塊,DS18B20 數字溫度傳感器為測溫元件,HJ1602A為溫度顯示器并設有低溫報警功能的智能溫度檢測系統。設計內容兩部分,即硬件設計和軟件設計,本設計具有讀數方便,測溫范圍廣,低溫預警,測溫精確,數字顯示,應用范圍寬等效果。
畢業論文關鍵詞: STC89C51   nRF24L01   DS18B20  HJ1602A
Low temperature disaster temperature monitoring system design
Abstract:With the development of society, the degree of China's modernization is constantly improving, the development of China's agriculture must take the road of modern agriculture, the number has become the trend of modern agricultural development. In order to avoid the damage of agricultural economy at the growth and reproduction of crops, the monitoring system of the low temperature disaster temperature is needed.. Crops sustained and stable growth, improve the economy benefit of the agriculture and the rural economy development has important practical significance and use value of the use of wireless monitoring technology to real-time acquisition of climate information, the system can monitor temperature of low temperature disaster and warning.
源`自*六)維[論*文'網www.aftnzs.live

Through the study of temperature monitoring system design STC89C51 MCU as the main control device and nRF24L01 as the wireless communication module, digital temperature sensor DS18B20 as a temperature sensor, HJ1602A for temperature display and a low temperature alarm function of intelligent temperature detection system. The design content of two parts, namely hardware design and software design, this design has reading convenience, the temperature measurement range is wide, the low temperature early warning, the temperature measurement is accurate, the digital display, the application range is wide and so on.
 Keywords: nRF24L01 DS18B20 HJ1602A STC89C51
目錄
1 緒論    5
1.1課題的來源與背景    5
1.2國內外研究現狀與水平    5
1.3課題的目的與意義    6
1.4 課題的基本內容    7
2 系統設計方案    8
2.1硬件選擇方案    8
2.1.1主控芯片的選擇    8
2.1.2電源電路的選擇    8
2.1.3無線收發模塊的選擇    9
2.1.4溫度傳感器的選擇    9
2.1.5本系統的顯示方案    9
2.2系統總設計框圖    10
3 系統的硬件設計    12
3.1單片機的系統設計    12
3.1.1單片機最小系統設計    12
3.1.2單片機的選擇    13
3.2 無線通信模塊的設計    15
3.2.1 nRF24L01的設計    15
3.2.2無線通信模塊的選擇    16
3.2.3功能描述    18
3.3溫度傳感器的設計    21
3.3.1 DS18B20系統的設計    21
源`自*六)維[論*文'網www.aftnzs.live

3.3.2溫度傳感器的選擇    22
3.3.3測溫原理    23
3.3.4測溫操作    24
3.4 電源電路設計    27
3.5 系統電源模塊的設計    27
3.6 LCD顯示屏的設計    28
3.6.1引腳功能    29
3.6.2操作流程    29 STC89C51單片機低溫災害溫度監測系統設計+程序:http://www.aftnzs.live/zidonghua/20190408/31893.html
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