基于μC/OS-Ⅲ的供电保护数据采集处理系统设计

Design of Data Collection and Processing System for Power Supply Protection Based on μC/OS-Ⅲ

中文关键词:  供电保护  数据采集处理  Cortex-M3  μC/OS-Ⅲ

英文关键词:power supply protection  data acquisition and processing  Cortex-M3  μC/OS-Ⅲ

中文摘要:

      针对供电监测保护设备多任务、实时性的要求，以Cortex-M3内核的芯片为硬件基础，基于μC/OS-Ⅲ操作系统，设计了一种低压供电保护数据采集与处理系统，软件系统中应用任务划分为数据采集处理、数据通信、数据显示、数据存储4个任务，应用任务和系统任务以独有的任务信号量实现同步，内存资源的共享以互斥信号量方式实现管理。通过μC/Probe对系统运行进行检测，结果显示系统CPU运行率高、内存使用率高，系统CPU利用率可达到59%，应用任务的堆栈利用率超过60%，数据处理任务占任务总运行时间的55.9%。经测试，系统能稳定运行，实时测量、传输、显示、记录电力系统的电压、电流值，为供电系统保护和运行提供保障。

英文摘要:

      To meet the multitasking and real-time requirements of the power supply monitoring and protection equipment,a kind of data collection and processing system is designed for low voltage power supply protect, which takes Cortex-M3 kernel chip as the hardware foundation of system and the software is based on μC/OS-Ⅲ.Application task in software system is divided into four tasks namely data collection and processing,data communication,data display,data storage.The synchronization between application tasks and system task is realized by particular task signal and sharing of memory resources is managed by mutex.The running of system is tested through μC/Probe,results show that the system has high CPU operating ratio and high memory usage.CPU utilization can reach 59% and the utilization rate of application task stack is more than 60% and the elapsed time of data collection and processing task accounts for 55.9% of the total run time.After testing,the system can run steady.It can real-time measure,transmit,display and record the power system voltage,current values,which provides security for the power supply system protection and running.