毕业设计（论文）-基于数字温度传感器的片机恒温控制器.doc

Abstract摘要摘要本次设计采用单片机最小系统实现室内环境的温度检测并给出标准温度范围内的恒温控制电路。该系统由五个主要模块组成，分别是单片机控制模块、温度检测模块、显示模块、标准温度设定模块以及升温降温控制模块。其中，控制模块选择STC89C52RC作为控制核心；温度检测模块选择实际生活中常常用到的DS18B20温度传感器来检测室内的环境温度并转换成可以被控制芯片读取和处理的数字信号；标准温度设定模块采用三个按键来完成标准温度范围的上下限设置；显示模块选择1602液晶显示器显示测温模块检测出来的环境温度；选择1602液晶显示器作为显示模块的芯片，温度控制模块由于不是本次的重点，本次设计只简单的给出电路的设计，分别利用电阻加热和风扇降温的方法控制温度。本次设计的软件编程部分在Keil C环境下运用C语言编写，与硬件相辅相承，系统功能得以正常实现。本次的系统设计实现简单、成本低、功能强，能够完成预期的检温控温效果，操作简单，应用广泛，经济实惠，可广泛运用于实际生活中。关键词：单片机STC89C52RC 温度传感器DS18B20 1602液晶显示器 Keil C编程环境 PAGE \* MERGEFORMAT PAGE \* MERGEFORMAT 1AbstractThis design uses the single chip microcomputer minimum system to realize the indoor environment temperature detection and gives the standard temperature range the constant temperature control circuit. The system consists of single-chip microcomputer control module, temperature detection module, liquid crystal display module, standard temperature setting module and temperature control module. Control module uses stc89c52rc MCU as the control core; temperature detection module selection of commonly used DS18B20 temperature sensor to measure the temperature of the indoor environment and converted into digital signal by SCM complete reading and processing; standard temperature setting module uses three button to complete the standard temperature range limit set; liquid crystal display module uses 1602 LCD display temperature sensors to detect the environment temperature; temperature control module because it is not the key, the design is simply given circuit design, respectively, using resistance heating and fan cooling method temperature control. The design part of the software programming in keil c environment using C language preparation, and hardware complement each other, the system can realize the normal. This design based on single chip microcomputer temperature control system to achieve a simple, low cost, strong function, can complete the expected temperature detection and control effect; has the advantages of simple op