本文设计了一种基于RS485 总线的智能抄表系统，并对其实现的核心部分: 数据通讯过程的设计和实现进行了详细描述。系统主要包括以下几个部分:数据采集器和数据集中器构成的本地抄表通讯网络，数据远程通讯和计算机抄表管理软件。其中着重介绍了RS485总线数据通讯硬件设计，计算机与数据集中器的数据通讯和计算机抄表管理软件设计。关键字: RS485；抄表系统；数据通讯；数据采集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
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