基于ARM7水文数据采集板设计与实时数据处理机制的实现

Design of Hydrological Data Acquisition Board Based on ARM7 and Realization of Real-time Data Processing Mechanism

介绍了一种主要应用于水电站水文数据采集的采集板功能设计与硬件组成,阐述了基于ARM7嵌入式系统的实时数据处理机制设计,在此机制下包含有多任务功能模块和协议栈的调度。多任务功能模块调度实现的关键是调度器的设计,详细介绍了调度器的组成及其功能。水文信息采集单元采集对象、数据类型及传输方式等功能基本固定,通过专用数据采集板将水文信息的采集、计算、存储和传输等功能集成一体,大大减少系统占用空间并有效缩短工程的安装调试周期,减少系统的开发成本,在相关领域极具推广价值。

The function design and the hardware composition of an acquisition board are introduced, mainly used in hydrological data collection of hydropower station. Real-time data processing mechanism design based on ARM7 embedded system is expounded, and the mechanism contains multi-task function modules and protocol stack dispatching. The key to the implementation of multi-task function module dispatching is the design of dispatcher. In this paper, the composition and function of the dispatcher are introduced in detail. The collection object, data type and transmission mode of hydrologic information collection unit are basically fixed. The functions of collection,calculation storage and transmission of the hydrologic information are integrated by the special data acquisition board, which greatly reduce the space occupied by the system, shorten the installation and debugging cycle of the project effectively, reduce the development costs of the system, and have great value of popularization in the related fields.