1、基于单片机的多路温度采集系统设计与实现 I 摘要 传统的多点温度测量存在着连线复杂、对测量环境要求高的缺点。采用无线通信技 术构成的无线多点温度测量系统，由于具有安装方便、对测量环境影响小、组网灵活等 优点，在需要多点温度测量的场合具有广泛的应用价值。 针对传统有线温度测量技术的局限性，本论文设计了一款基于单片机的无线多点温 度采集系统。本系统采用了STC12C5A60S2单片机作为核心控制芯片、DS18B20 数字温度传感器和NRF24L01无线通讯模块。论文完成了方案论证、硬件电路设计和 软件设计。其中硬件电路设计包括单片机最小系统设计、无线收发装置电路设计、温度 传感器电路设计、 显示电
2、路设计。 软件设计包括主程序、 无线发送与接收等程序的解析。 并在实验室完成了温度数据的测量和无线传输实验。实验表明满足设计要求，具有一定 的实用和推广价值。 本系统通过实物实验达到了课题的各项要求，证明了本温度采集系统真实、可靠。 关键字：温度测量；DS18B20；数字温度传感器；单片机；无线收发器 基于单片机的多路温度采集系统设计与实现 II Abstract The traditional multi-piont temperature measurements have many defects, such as the complex interconnection, the hig
3、h demand for measurement environment. Because of the advantages of easy installation, small impact on the measuring environment, network flexible, the wireless multi-piont temperature acquisition system using wireless communication technology has wide application value in the environment which needs
4、 multi-piont temperature acquisition. Aim at the limitations of The traditional wired multi-piont temperature measurements. This thesis designs a wireless multi-piont temperature acquisition system which adopts single chip processor. This system uses the STC12C5A60S2 single chip processor as the cor
5、e control chip. The thesis completed the scheme demonstration, the smallest single-chip system design, the wireless transceiver circuit design, the temperature sensor circuit design, the display circuit design, the software design and the experimental verification. Through physical experiments this
6、system has achieved the task requirements, it proved this temperature acquisition system is true and reliable. Key words：temperature measurement；DS18B20；digital temperature sensor；single chip processor；wireless transceiver 基于单片机的多路温度采集系统设计与实现 3 目录 中文摘要 I 英文摘要. II 1 绪论 .1 1.1 课题意义及背景 . 1 1.2 国内外发展现状 . 2 1.3 课题研究内容及要求 3 2 方案论证 4 2.1 主控方案论证 4 2.2 温度传感器方案论证 5 2.3 无线装置方案论证 6 2.4 系统方案论证 7 3 硬件电路设计 8 3.1 单片机最小系统电路设计 8 3.2 无线模块电路设计 12 3.3 显示电路设计 16 3.4 传感器电路设计 . 17 4 软件设计 20 4.1 主程序设计 20 4.2 无线发送与接收程序
