摘要
介绍一种利用高速51系列单片机C8051F020组成的电量测量及数据传输系统,系统能比较实时准确地监测三相电压、电流、功率、电能和功率因数等。详细介绍了频率、相位差的测量原理和A/D转换,以及系统所需电源的电路设计。并且讨论了几种数据传输的方式:RS 485通信、CAN通信及GPRS通信。此系统可以用于电力系统中家庭用户以及变压器的远程电量监测。
The paper introduces an electrical parameters measure and data transmission system which is consistitued by a high speed 51 series microeosmputer- C8051F020. This system can supervise the three -phase voltage,current, power, energy, power factor and so on in real - time and correctly. Particularly introduces the measure theory of frequency and phasic dispersion, A/D conversion,and gives the system＇s power supply,then discusses several data transmission methods： RS 485, CAN, and GPRS communication. This can he used in home electricity user and transformer＇s long - distance electrical parameters measure and supervise in electrical system.
出处
《现代电子技术》
2006年第9期83-85,共3页
Modern Electronics Technique
关键词
电量测量
数据传输
C8051F
频率
相位差
electric parameter measure
data transmission
C8051F
frequency
phasic dispersion
