摘要
电力线载波通信技术是低压电力线集中抄表技术实现的重要通信手段,在实际的应用中,由于衰减、噪声干扰、阻抗变化等问题,容易造成电力线载波通信失败。目前,针对低压电力线载波通信能力测试的仪表有很多,但大多是单独的电力载波通信测试仪器,本文在DDS技术和单片机技术的基础上提出一种低压电力载波通信测试仪,综合集成了电平振荡器、选频电平表、频率计、扫频仪、阻抗计等。且人机交互界面好,操作方便。
Power line carrier communication is important for realizing AMR. But the communication may fail actually because of transmitting signal attenuation, noise, impedance change on line. There are lots of testers on power line carrier at present, but most of them are separated. The tester for low-power line carder communication is designed based on DDS and MCU technology in this article, the tester comprises many instruments＇ functions, such as level oscillator, frequency-selective level meter, cymometer, frequency characteristic meter and impedance meter and so on. And it is easy to operate.
出处
《自动化与仪器仪表》
2013年第4期100-101,103,共3页
Automation & Instrumentation
关键词
低压电力线
载波通信
通信测试
Low-voltage power line
Carrier communication
Communication test
