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选用ARM核芯片LPC1768作为控制核心,以实时操作系统μC/OS-II构建软件平台,采用以太网和GPRS技术作为通信手段,利用带RS485通讯接口的水、电、气表组成采集单元采集用户的水、电、气能源使用数据,设计了一种集远程传输控制器和数据采集器为一体的抄表终端的软硬件实现方法。该设计可有效扩大远程抄表系统的覆盖范围,提高数据传输稳定性。
ARM core chip LPC1768 is chosen as the control core, the software platform is built with real-time operating system μC / OS-II, Ethernet and GPRS technology are used as communication means, and water, electricity and gas meters with RS485 communication interface are used to collect the users Water, electricity, gas energy use data, designed a set of remote transmission controller and data acquisition meter as one of the meter reading terminal hardware and software implementation. The design can effectively expand the coverage of remote meter reading system and improve the stability of data transmission.