一種基于工業(yè)應(yīng)用頻段和GSM 短信平臺(tái)的多點(diǎn)遠(yuǎn)程水位自動(dòng)測量模式，整個(gè)系統(tǒng)由測
量現(xiàn)場、測量前端、監(jiān)測中心三部分組成，多個(gè)測量現(xiàn)場通過投入式變送器，采用同頻時(shí)序分址編碼方式傳送水位信息，接收靈敏度高，傳輸距離遠(yuǎn)，抗干擾能力強(qiáng)且投入成本較少。測量前端準(zhǔn)實(shí)時(shí)地采集監(jiān)測河段水位數(shù)據(jù)，經(jīng)編碼后以GSM 短信息形式傳送到監(jiān)測中心，進(jìn)行存儲(chǔ)、查詢、分析、統(tǒng)計(jì)。
關(guān)鍵詞：遠(yuǎn)程數(shù)據(jù)傳輸；自動(dòng)測量；數(shù)據(jù)采集；無線通訊
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