基于nRF905的无线智能温度采集系统

Design of Wireless Intelligent Temperature Acquisition System Based on nRF905

设计了一款依托无线传感技术的主动型温度数据采集系统。该系统以射频收发芯片nRF905为核心,采用DS18B20温度传感器构成温度数据采集模块,用STC89C54RD+构建控制模块。温度显示模块则由LED数码管构成,同时温度数据也可以通过串口在计算机上显示,方便数据的分析。该系统可以方便快捷地收集到离接收端口150 m范围内的温度参数,误差小于5%。通过调试分析,该套无线数据采集系统可以满足近距离的无线通信需求,数据采集速度快、精度较高、稳定性较强,市场应用前景广泛。

In this study,a temperature data acquisition system based on wireless sensing technology was designed.RF transceiver chip nRF905 is the core of this wireless temperature acquisition system.The temperature sensor of DS18 B20 constitutes the temperature data acquisition modules.STC89 C54 RD+ is used to build the controlling module.The RF transceiver chip nRF905 acts as the core of the wireless data transmission module.Temperature display module is composed by the LED digital tube.Temperature data can also be displayed on the computer through the serial port,to facilitate the analysis of the data.The system can quickly and easily collect parameters of the temperature within the range of one hundred and fifty meters around the receiver port,with a relative error within 5%.After debugging and analysing,the wireless data acquisition system is able to meet the needs for short-range wireless communication.It has the advantages of fast data acquisition speed,high accuracy and stability.So it also has a broad market prospect.