基于ARM的嵌入式远程流量计设计  

Design of Embedded Remote Flowmeter Based on ARM

作　　者：李赣平[1] 邵惠鹤[2] 

机构地区：[1]南昌大学信息工程学院,江西南昌330031 [2]上海交通大学自动化系,上海200030

出　　处：《仪表技术与传感器》2009年第2期41-43,共3页Instrument Technique and Sensor

摘　　要：ARM嵌入式系统是一种新兴的32位嵌入式系统,在ARM嵌入式系统的基础上开发了一种功耗小,功能完备的远程流量计。该流量计以ARM处理器S3C44B0X为核心,通过GPIO口实现数据采集和LED显示;FLASH ROM可保存流量数据;由处理器UART口实现的RS-232串行通信接口可用于打印流量曲线和历史数据;通过专用的以太网卡芯片,流量计可实现10 Mbps的以太网通信,可和局域网内的上位机进行远程数据访问。整个系统体积小,结构精简,并有很高的执行效率,很适合在实时性和精度要求高的场合应用。Arm embedded system is a new and developing 32 bit embedded system. Based on ARM embedded system, a remote flowmeter with low power consumption and multi-functions has been developed. Based on the ARM processor S3C44BOX, the data acquisition and LED display functions were realized in the flowmeter through GPIO interface. Flow data can be saved in the FLASH ROM. Realized by the UART interfaces of the processor, the RS -232 serial communication interface can be used to print flow curves and history, data. The flowmeter can realize the Ethemet communication of 10 Mbit/s through specific Ethernet chip, which provided remote data linkage for upper PC within a local area network （LAN）. The flowmeter has small size with compact structure and high performance. It is very adaptable for the applications need rigorous real-time performances and precisions.

关 键 词：远程流量计 嵌入式系统 ARM 

分 类 号：TP334[自动化与计算机技术—计算机系统结构]