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STC89C52單片機車載即熱式電熱水器設計+電路圖+程序

時間:2019-05-19 18:52來源:畢業論文
采用STC89C52單片機作為控制器,使用C語言編寫程序,設計了一款即熱式電熱水器。使用按鍵鍵盤設定溫度,溫度可以精確到0.1攝氏度,并使用LED燈顯示,能夠精確提供用戶所需溫度的溫水

摘要:當前,隨著軌道交通的發展,車載熱水器在客運列車中的應用也在變革,從最開始的鍋爐熱水器到現在廣泛使用的電熱水器。與傳統的熱水器相比較,即熱式電熱水器可為人們帶來更為愜意、輕松的旅程。車載即熱式電熱水器智能化的簡化操作,使用效率的明顯提高,節約能源,提高使用安全性。在生活、工作節奏越來越快的今天,可以為人們減少旅途繁瑣、提高效率、節約時間。本文采用STC89C52單片機作為控制器,使用C語言編寫程序,設計了一款即熱式電熱水器。使用按鍵鍵盤設定溫度,溫度可以精確到0.1攝氏度,并使用LED燈顯示,能夠精確提供用戶所需溫度的溫水。采用DS18B20采集溫度,使用LED燈顯示,精確的顯示出采集的水溫。當所需溫度高于當前采集的水溫時,使用繼電器控制外接加熱源,當所需溫度低于當前采集的水溫時,繼電器斷開不加熱。當所需溫度高于采集溫度時,繼電器吸合開始加熱。基本實現了智能控制功能。35583
畢業論文關鍵詞: 軌道交通;熱水器;18B20;STC89C51
The design of vehicle electric water heater based on C51 MCU
Abstract:At present, with the development of rail transportation, application of water heater in the passenger train in the reform, the electric water heater water heater boiler from the beginning to the present widely used. Compared with the traditional water heater, the water heater can bring people more comfortable, easy journey. The vehicle electric hot water heater intelligent simplify the operation, improve efficiency, save energy, improve safety. In life, the increasingly rapid pace of today, people can reduce the tedious journey, improve efficiency, save time.This paper uses STC89C52 microcontroller as the controller, the use of C programming language, designed a electric hot water heater.Use the keyboard to set the temperature, the temperature can be accurate to 0.1 degrees Celsius, and the use of LED lights display, can accurately provide the required temperature of warm water. The DS18B20 collection temperature, the use of LED lights display, display the temperature precise acquisition. When the required temperature is higher than the acquisition of temperature, use the relay to control the external heating source, when the required temperature is lower than the current collecting water, relay off without heating. When the required temperature is higher than the acquisition of temperature, relay starts heating. The basic realization of the intelligent control function. 源`自*六)維[論*文'網www.aftnzs.live
KeyWords:Rail transit;water heater;18B20;STC89C52
目錄
1  緒論    3
2  設計內容及性能指標    9
系統方案比較、設計與論證    9
3.1  主控制器模塊    9
3.2  溫度測量    10
3.3  設置溫度    11
3.4  顯示模塊    11
3.5  電源選取    11
4  系統器件選擇    12
4.1  溫度傳感器的選擇    12
4.2  STC89C51單片機    13
4.3  電源、自鎖開關    13
4.4  繼電器    14
4.5  其他硬件    14
5  硬件實現及單元電路設計    15
5.1  主控制模塊    15
5.2  顯示模塊電路    15
5.3  數碼管顯示驅動電路    16
5.4  溫度傳感器(DS18B20)電路    16
5.4.1  DS18B20基本介紹    16
5.4.2  DS18B20控制方法    17
5.4.3  DS18B20供電方式    17
5.5  繼電器加熱控制電路    17
6  系統軟件設計    19 STC89C52單片機車載即熱式電熱水器設計+電路圖+程序:http://www.aftnzs.live/zidonghua/20190519/33607.html
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