中文摘要：

针对灌区流量水量监测系统存在的通讯网络投资费用大、维护困难、利用率低的问题，研究了基于GSM网络短消息（SMS）的灌区流量水量监测系统总体结构、GSM通讯模块TC35,与下位单片机及上位监控、计算机之间的接口电路与软件等，研制了基于GSM短信息的灌区流量遥测系统。实际应用表明：对于测控点极为分散、数据流量小的灌区，利用该系统进行数据传输，具有投资省、网络运行可靠、成本低的优点。

英文摘要：

This paper describes the design and implementation of irrigation data transmission system （IDATS） which uses GSM short message service （SMS） data transfer technology to transmit water, volume in irrigation areas. This method has some attractive-features for delivering lightweight messages in a reliable and cost-efficient way compared with other data delivering schemes such as short wave communication and dedicated telephone wires. In this paper, we develop a multi-user, two-way IDATS y ia SMS. A GSM modem and a micro controller are integrated to complete data acquisition and messages transmission from monitoring application to the monitor center, where a GSM modem and a computer hosting the monitoring application are combined to receive, store and process the messages. This paper presents the architectural description of the IDATS, describes the SMS mechanism and discusses communication protocols of the system. The details of the interface circuits design consideration are elucidated next. Finally it presents the implementation of the IDATS in details, reports the experiences in using it, and proposes directions for future research. The characteristics of the system are less initial capital investment; lower operating costs and easier implementation, which raake it particularly appropriate for the use in irrigation areas. And this system can also be applied in other remote facilities with low density and long-range data transmission requirements.