远程水位自动测量系统的设计与实现

一种基于工业应用频段和GSM 短信平台的多点远程水位自动测量模式，整个系统由测
量现场、测量前端、监测中心三部分组成，多个测量现场通过投入式变送器，采用同频时序分址编码方式传送水位信息，接收灵敏度高，传输距离远，抗干扰能力强且投入成本较少。测量前端准实时地采集监测河段水位数据，经编码后以GSM 短信息形式传送到监测中心，进行存储、查询、分析、统计。
关键词：远程数据传输；自动测量；数据采集；无线通讯
Abstract：A long-distance and multipoint water level automatism measure system,
which is based on frequency segments in industry application and messages over GSM,
is designed. The system falls into following three parts: Surveying Locale,
Surveying Foreside, and Monitoring Center. Several Surveying Locales transfer
information of water level by Plunged Transformer with the method of Synchronous
Frequency Sequence Address Division Encoding. The system is of precision of
reception, long-distance transmission, powerful anti-noise functionality, as well
as the lower cost. Surveying Foresides can gather the semi-real-time data about the
water level from the different reaches. After being encoded, the data can be
transferred to Monitoring Center with the form of short messages over GSM, saving,
inquiring, and analyzing statistically.
Key words：Long Distance Data Transfer, Automatism Surveying, Data Collection,
Wireless Communication