【摘要】 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。更多还原

【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 Syn-chronous Frequency Sequence Address Division Encoding. The system is of precision of reception, long-distance transmission, power-ful 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.更多还原