摘 要：随着社会与科技的进步，对数据的精度与量度的要求比以往有了很大的提高，传统的数据采集方式已难以满足对数据准确性、及时性、复杂性等要求，因此基于传统的以借助人工、仪器仪表等手段为基础的数据采集方式面临越来越大的困难和挑战。本文致力于利用无线传感器技术来测量温度的系统设计,综合运用传感器技术、自动检测技术、通信技术和微型计算机技术,实现对环境参量的低成本监测管理。本设计采用AT89S51单片机作为数据采集系统的控制中心，该系统包括电源模块、nRF905无线收发模块、LCD1602液晶显示模块和DS18B20温度传感模块。系统通过温度传感器DS18B20采集环境中的温度参数，将采集到的数据放在寄存器中，然后通过无线传感器nRF905发送给控制中心,控制中心通过处理解码后在LCD1602上进行显示。本设计在此基础上，通过硬件和软件实现了各个功能模块。测试结果表明，该系统能实现无线数据采集和进行无线发送并实时显示，操作简单。

关键字：51单片机 无线 检测 温度传感器DS18B20 最小系统

Abstract：Along with the social and the progress of science and technology, the accuracy of data with the requirements of the measure than ever to have greatly increased, the traditional data acquisition methods of data has been difficult to meet the accuracy, timeliness and complexity requirements, so based on the traditional to artificially by such means as, instrument and apparatus, the basis of data acquisition methods facing increasing difficulties and challenges.This article is dedicated to the use of wireless sensor technology to measure the temperature of the system design,the integrated use of sensor technology, automatic detection technology, communications technology and micro-computer technology to achieve low-cost monitoring and management of environmental parameters.The design uses the AT89S51 single chip  microcomputer as the control center , the system including a power module ,nRF905 wireless transceiver module, the LCD1602 module and DS18B20 temperature sensor module.The design collectes the temperature environment parameters by the DS18B20 , the collected data would be stored on the register,and then the wireless sensor nRF905 sent to the control center.The control center through the processing of the decoder for display on the LCD1602.On this basis, this design realize the function of each module by the hardware and software . The test results show that the system can achieve wireless data acquisition,wireless transmission ,real-time display and simple operation.

Keyword：89S51 microcontroller  wireless  detection  temperature sensor DS18B20  minimum system