本文针对当前多数水文自动测报系统存在智能化低、实时性及可靠性差等问题,设计了一种基于嵌入式技术和GPRS无线通信的水文自动测报系统.系统由中心站和遥测终端组成.遥测终端采用32位ARM微处理器S3C44B0X和嵌入式操作系统μCLinux,利用超声波测距技术实现水位数据采集,通过GPRS模块与中心站通信.中心站使用Visual C++6.0和SQL Server 2000开发水文监测管理软件,实现对遥测终端水文数据的采集、存储、分析和预警.通过实验环境测试,验证了系统的可行性.采用水文测验误差分析方法,评估了超声波水位测量的误差.该系统具有智能化程度高、数据传输实时可靠的特点,可为水文信息化管理提供有力支撑.
Research and Design of Embedded Hydrological Automatic Measuring and Reporting System
In this paper,a hydrological automatic reporting system based on embedded technology and GPRS wireless communication is designed for most of the current hydrological automatic reporting systems,which have problems such as low intelligence,poor real-time and reliability,etc.The system consists of a central station and telemetry terminals.The system consists of a center station and a telemetry terminal.The telemetry terminal adopts 32-bit ARM microprocessor S3C44B0X and embedded operating system μCLinux,utilizes ultrasonic ranging technology to realize water level data acquisition,and communicates with the central station through GPRS module.The central station uses Visual C++6.0 and SQL Server 2000 to develop hydrological monitoring management software to realize the collection,storage,analysis and early warning of hydrological data from telemetry terminal.The feasibility of the system is verified through the experimental environment test.The error of ultrasonic water level measurement was evaluated by using hydrological test error analysis method.The system is characterized by high degree of intelligence,real-time and reliable data transmission,and can provide strong support for hydrological information management.
automatic hydrological measurementembedded systemμCLinuxGPRS wireless communication
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