无线数显温度计的设计.doc

无线数显温度计的设计 摘 要 当今社会，远距离的温度数据采集已经很有必要。而且温度测量的准确度及结构的简化程度也对生产效益有很大影响。在工农业生产现场，甚至在日常生活中，会有许多需要进行温度的测量以及范围性监控的地方。，可能会有种种外界环境条件的限制，例如高温、矿井等等人类难以接触的环境。传统的温度计已经不能满足测量要求。这个时候我们就需要一个可以远程测量和数字显示的温度计。，采用无线NRF24L01、单片机数字式的温度传感器构成一个测温系统。能够实现在百米范围内对环境温度0.2-99.9进行准确检测。 关键词：温度测量，无线收发，单片机，传感器  The esign of Wireless Digital Thermometer Author:Liu Lixiang Tutor: Li Hongxia Abstract With the social progress and development, and production needs, the use of wireless communication technology temperature remote data acquisition way already more and more be extensived application in various fields. And the degree of accuracy and simplify the structure of temperature measurement has great influence on production efficiency. In the field of industrial and agricultural production, and even in daily life, there will be many need for temperature measurement and monitoring of local. We also know that may limit of various environmental conditions, such as high temperature, mine and so on difficult for humans to contact with the environment. The traditional thermometer has been unable to meet the measurement requirements. This is when we need a remote measurement and digital display thermometer. The design proposed a wireless temperature measurement solutions and a temperature measurement system by using the wireless RF chip NRF24L01, low power consumption MCU and digital temperature sensor DS18B20. The system through a simple communication protocol, wireless data transmission. It is remote control wireless temperature measurement system can be achieved, and can realize the environment temperature 0.2-99.9 accurate detection in the range of 100 meters. This system uses LCD1602 to achieve temperature display. Keywords: Temperature measurement, Wireless transceiver, MCU, Sensor  目 录 1 绪论 1 1.1课题背景、目的、意义 1 1.2无线温度采集系统发展状况 1 1.3本课题的研究内容 2 2 方案的确定与关键器件选择 3 2.1系统方案的初步构想 3 2.2关键器件的确定 4 2.2.1 传感器的确定 4 2.2.2 短距离无线通信模块的确定 4 3 各模块电路