水表的出戶(hù)計(jì)量已經(jīng)成為函待解決的間題。介紹了1種水表計(jì)費(fèi)系統(tǒng)，該系統(tǒng)將水表的計(jì)量數(shù)據(jù)通過(guò)RS485總線傳到樓下的水表計(jì)費(fèi)柜，定期山T作人員將計(jì)量數(shù)據(jù)采集到便攜式讀表器內(nèi)該讀表器通過(guò)RS232接口將采集的數(shù)據(jù)傳到卜位機(jī)，完成水表計(jì)
費(fèi)數(shù)據(jù)的采集、存儲(chǔ)和處理。實(shí)踐證明:該系統(tǒng)實(shí)現(xiàn)了水表的智能化設(shè)計(jì)和戶(hù)外抄表。
關(guān)鍵詞:讀表器RS485總線C8051單片機(jī)
中圖分類(lèi)號(hào):TP29 文獻(xiàn)標(biāo)識(shí)碼:A
Abstract二Water meter out-door reading has become an urgent need. A biling system of water meter; is presented in this paper. The metering
data of water metem are transferred into billing cabinet downstairs through RS485 bus, the operator collects the metering data into portable reader
periodically. Then the data colected are forwarded into host computer through RS232 interface for data acquisition, storage, procesing and
billing. The practice proves that this system implements intelligent design and out-door reading for。water meter.
Keywords;W ater-meterre ader RS485b us C8051s inglec hipc ompute