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

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