基于WIFI传输的单片机传感器设计解剖.docx

摘 要 随着现代信息技术的飞速发展和传统工业改造的逐步实现．能够独立工作的温度检测和显示系统应用于诸多领域。传统的温度检测以热敏电阻为温度敏感元件。热敏电阻的成本低，但需后续信号处理电路，而且可靠性相对较差，测温准确度低，检测系统也有一定的误差。与传统的温度计相比，这里设计的数字温度计具有读数方便，测温范围广，测温精确，数字显示，适用范围宽等特点。选用单片机STC90C516RD+作为主控制器件，DSl8B20作为测温传感器通过LCD1602液晶实现温度显示。并通过DSl8B20直接读取被测温度值，进行数据转换，将检测的温度数据通过单片机串口发送给PC机和WIFI收发模块进行实时监控显示，而智能安卓手机又可以通过相应的APP接受到WIFI模块发送的数据，从而又可以在我们的智能手机上进行实时显示监控，这样一来我们就可以创建一个WIFI传输的MCU温度采集监控系统了。由于DS18B20的物理化学性能稳定，线性度较好，在0℃~100℃最大线性偏差小于0.1℃。该器件可直接向单片机传输数字信号，便于单片机处理及控制。另外，该温度计还能直接采用测温器件测量温度，从而简化数据传输与处理过程。 关键词：单片机，DSl8B20测温传感器，MCU串口，WIFI模块，智能安卓手机 Abstract With the gradual implementation of the rapid development of modern information technology and the transformation of traditional industries. Able to work independently of the temperature detection and display system used in many fields. The traditional temperature detection for thermal resistance as the temperature sensitive element. Thermal resistance of low cost, but the subsequent signal processing circuit, moreover the reliability is relatively bad, the temperature measurement accuracy is low, the examination system also has certain error. Compared with the traditional thermometer, here is the design of digital thermometer reading convenience, a wide range of temperature measurement, accurate temperature measurement, digital display, applicable to a wide range of. Single chip STC90C516RD+ as the main control device, DSl8B20 as a temperature sensor through the LCD1602 LCD temperature display. And DSl8B20 measured by direct reading temperature value, data conversion, the temperature data detected by microcontroller serial port to send to the PC and WIFI transceiver module for real-time monitoring, smart Android mobile phone can receive WIFI module to send data through the APP, which can real-time display control in intelligent mobile phone we, MCU temperature acquisition system so that we can create a WIFI transmission. The DS18B20 physical and chemical properties of stability, good linearity, at 0 ℃ ~100 ℃ maximum linear