基于短信的氨含量监测远程传输网络系统的研制

Development of Remote Transfer Network System about Monitoring NH3-Content Based on Short Message

本文研制了基于短信息的氨含量监测远程传输网络系统,用于环保等部门对污水的监测。简要地介绍系统的实现功能、网络拓扑和电路组成;制定上位机与工作站之间交换数据的通信协议,使用AT命令控制GSM调制解调器实现它们之间的远程数据传输;针对氨电极的高阻抗和毫伏级信号输出设计了高阻抗放大器。该网络系统工作稳定,运行良好,极大地提高了环保部门的监管效率。

The remote transfer network system based on short message is developed in monitoring NH3-Content of sewerage.The realized functions,network topology and circuit structure of the system are introduced concisely;Communication protocol about switching data is established between upper computer and workstations,using AT commands to control GSM modem for realizing remote data transmission in theirs;Amplifier with higher input impedance is designed according to high impedance and output signal of milli voltage grade about NH3 electrode.The network system＇s work is stable and its running is well.It enhances monitoring and managing efficiency obviously in projecting environment department.