摘 要：隨著社會與科技的進步，對數據的精度與量度的要求比以往有了很大的提高，傳統的數據采集方式已難以滿足對數據準確性、及時性、復雜性等要求，因此基于傳統的以借助人工、儀器儀表等手段為基礎的數據采集方式面臨越來越大的困難和挑戰。本文致力于利用無線傳感器技術來測量溫度的系統設計,綜合運用傳感器技術、自動檢測技術、通信技術和微型計算機技術,實現對環境參量的低成本監測管理。本設計采用AT89S51單片機作為數據采集系統的控制中心，該系統包括電源模塊、nRF905無線收發模塊、LCD1602液晶顯示模塊和DS18B20溫度傳感模塊。系統通過溫度傳感器DS18B20采集環境中的溫度參數，將采集到的數據放在寄存器中，然后通過無線傳感器nRF905發送給控制中心,控制中心通過處理解碼后在LCD1602上進行顯示。本設計在此基礎上，通過硬件和軟件實現了各個功能模塊。測試結果表明，該系統能實現無線數據采集和進行無線發送并實時顯示，操作簡單。

關鍵字：51單片機 無線 檢測 溫度傳感器DS18B20 最小系統

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