本文設(shè)計(jì)了一種用于自動抄表系統(tǒng)的數(shù)據(jù)集中器，對它的本地及遠(yuǎn)程通信的實(shí)現(xiàn)進(jìn)行了詳細(xì)闡述。該數(shù)據(jù)集中器采用基于uPD78F0881 單片機(jī)的硬件平臺，實(shí)現(xiàn)了實(shí)時時鐘、數(shù)據(jù)存儲、數(shù)據(jù)通信等功能，并針對抄表系統(tǒng)通信特點(diǎn)設(shè)計(jì)了通信協(xié)議。最后，經(jīng)測試
表明所設(shè)計(jì)的系統(tǒng)達(dá)到了低功耗、高可靠性的設(shè)計(jì)要求。
關(guān)鍵詞：數(shù)據(jù)集中器；uPD78F0881；CAN 總線；紅外通信

Abstract: A design of data concentrator in automatic meter reading system is described in
this paper. The implementation of its local and remote data transmission are presented in detail. The data concentrator is based on uPD78F0881 MCU, employing infrared communication and CAN bus techniques. The test shows that the meter acquisition terminal has the characters of high stability, low-power, which has reached the demand of the design.
Keywords: data concentrator; uPD78F0881; CAN bus; infrared communication