基于无线网络的温度采集系统设计毕业设计论文.doc

毕业设计 基于无线网络的温度采集系统设计 内容摘要 由于数据采集系统的应用范围越来越宽、所涉及到的测量信号和信号源的类型越来越多、对测量的要求也越来越高，国内现在已有很多温度测量和采集的系统，但很多温度采集系统存在功能单一、采集速率低、稳定性不高，操作复杂，并且对温度测试环境要求比较高等等的许多问题。人们需要一种应用范围广、性价比高的温度数据采集系统。 基于单片机的温度数据采集系统是由将来自DS18B20数字温度传感器的信号直接传输给单片机从机，单片机从机经过信号处并通过nRF2401无线模块发送给单片机主机，并在主机上显示出温度，同时实现温度过高或者过低的报警功能，温度超过50摄氏度时语音报警说明温度过高，温度低于20 关键词 无线；温度采集；单片机；报警 ABSTRACT since the wide range of data acquisition system, which involves the measurement signal and the type of signal source more and more, Surveyors are increasingly high requirements of the domestic now have a lot of data acquisition and measurement system But there are many single function systems, collecting less access, low collection rate, complicated operations, and the demands of the test environment and other issues．It requires abroad scope of application, high reliability and low-cost data acquisition system． Based on single-chip wireless temperature data acquisition system from the DS18B20 digital temperature sensor signal is transmitted directly to the microcontroller slave microcontroller slave signal processing and temperature nRF2401 wireless module is sent to the microcontroller host and displayed on the host, while temperature is too high or too low alarm function. The design has a powerful data processing, display and intuitive, friendly interface, cost-effective, wide range of applications can be widely used in many areas of industrial control, instrumentation, instrumentation, mechanical and electrical integration, and smart home. KEY WORDS Wireless；Temperature Acquisition ；Microcontroller ； HYPERLINK app:ds:alerting \t _self Alerting 目 录 TOC \o 1-3 \u 1 绪论 PAGEREF _Toc326077834 \h 1 1.1 设计目的 PAGEREF _Toc326077835 \h 1 1.2 课题的研究现状和发展趋势 PAGEREF _Toc326077836 \h 1 1.2.1 课题的研究现状 PAGEREF _Toc326077837 \h 1 1.2.2 发展趋势 PAGEREF _Toc326077838 \h 3 2 总体方案设计 PAGEREF _Toc326077839 \h 4 2.1 系统方案比较与选择 PAGEREF _Toc326077840 \h 4 2.1.1 控制器模块比较与论证 PAGEREF _Toc326077841 \h 4 2.1.2 温度传感器模块比较与论证