本文設計了一種基于RS485 總線的智能抄表系統(tǒng)，并對其實現(xiàn)的核心部分: 數(shù)據(jù)通訊過程的設計和實現(xiàn)進行了詳細描述。系統(tǒng)主要包括以下幾個部分:數(shù)據(jù)采集器和數(shù)據(jù)集中器構成的本地抄表通訊網(wǎng)絡，數(shù)據(jù)遠程通訊和計算機抄表管理軟件。其中著重介紹了RS485總線數(shù)據(jù)通訊硬件設計，計算機與數(shù)據(jù)集中器的數(shù)據(jù)通訊和計算機抄表管理軟件設計。
關鍵字: RS485；抄表系統(tǒng)；數(shù)據(jù)通訊；數(shù)據(jù)采集

Abstract: A new remote concentrated metering system based on RS485 network is designed. The realization of data communication is described as the core of this remote concentrated metering system in this dissertation. It concludes several parts as follows: a local metering communication network made up of data sampler and concentrator, data remote communication and computer metering management software. Especially, the hardware design of the RS485 network data communication, the data communication between computer and data concentrator, and the computer metering management software is described in detail.
Keywords: RS485; Reading System; Data Communication; Data Acquisition