摘要
首先介绍了电能信号检测中采用的虚拟地、相位检测和软件锁相等新方法;其次介绍了电能参数测量仪的电能参数和谐波分析的原理方法,在硬件上采用交流采样技术,使用基于Cortex-M3内核控制器STM32f103,采用该控制器能有效简化硬件电路并保证测量精度;软件上采用μC/OS-II多任务实时操作系统,并移植了μCGUI嵌入式图形界面模块,显示模块与主控制器采用RS485接口进行通信,能保证实时信号数据和波形显示。
Describes some new methods used in power signal detection,such as the technology of virtual ground,Phase detection,software PLL and so on;then introduces the measuring principle of power parameters and harmonic analysis,AC sampling technology and STM32f103 controller based on Cortex-M3 core is used in hardware system,using this controller can simplify the hardware circuit and ensure accuracy;the software system uses μC/OS-II real-time multitasking operating system,and transplantes UCGUI embedded graphics interface module,display module and the main control adopts RS485 communication interface,to ensure real-time signal data and waveform display.
出处
《电子测量技术》
2011年第7期16-19,共4页
Electronic Measurement Technology
基金
浙江省科技重大专项(2010C11010)资助
