In order to realize remote wireless meter reading, a GPRS-based network Watt-hour meter is designed by using GPRS communication technology and multi-task modular design method of μC/OS- Ⅱ embedded operating system.Various communication methods such as GPRS communications.RS 232 serial communication, RS 485 serial communication and infrared communication are implemented in the communication module of the Watt-hour meter, which includes ARM microprocessor and related peripherals.The system software is composed of four layers such as hardware driver layer, operating system layer, application interface layer and application layer.The application interface layer receives and distributes the messages of different tasks, and all tasks are independent and there is no direct coupling.%为了实现无线远程抄表的目的,采用GPRS通信技术和μC/OS-Ⅱ嵌入式操作系统的多任务模块化设计方法,设计基于GPRS通信的网络电能表.其中通信模块硬件由ARM微处理器及相关外设组成,实现GPRS通信、RS 232串行通信、RS 485串行通信及红外通信等多种通信方式;系统软件采用硬件驱动层、操作系统层、应用接口层和应用层四层结构,任务间通信由应用接口层实现消息接收和分发,具有各任务相互独立,无直接耦合的特点.
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