设计了一种以STM32F407为主控CPU的手持式频谱分析仪,用于现场在线分析220 V电力线载波的通信信道干扰情况。设计方法为:用RC串联无源高通滤波器和一阶有源高通滤波器级联构成载波信号提取电路; 用Multisim和TINA-TI软件组合仿真硬件,验证其载波提取能力; 用STM32F407芯片采样载波信号,通过快速傅里叶变换(FFT)运算获得载波信号的频域信息,将频谱图显示在液晶屏上。实际运行结果表明:该分析仪能够提取到40～500 kHz的载波信号,测量频域较宽,能够准确快速分析多种载波通信模块的频谱信息,具有携带方便、成本低的优势。
Abstract
The V-type artificial main power network and a signal analyzer are usually employed coordinately to check the power line carrier communication equipment. However, it is inconvenient in field tests and the analyzer is expensive. A handheld spectrum analyzer with STM32F407 CPU was designed to identify the interference of 220 V power line. The filter circuit of carrier wave was made up of a series of RC high-pass filter and one-pole active high-pass filter. The hardware was simulated by combining software of Multisim and TINA-TI, in order to verify its capacity of carrier extraction. The carrier signal was sampled by STM32F407 chip, transformed by fast Fourier transform(FFT)algorithm into the frequency spectrum and displayed on an LCD screen. Experimental results showed that this handheld spectrum analyzer could capture wideband signals from 40 kHz to 500 kHz and analyze frequency spectrum of various power line carrier modules accurately and rapidly. Comparatively, the advantages of the proposed power line carrier spectrum analyzer are portable and cheap.
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参考文献
[1] 凌滨, 李锦香. 林区电力监测及预测系统的设计[J]. 林业机械与木工设备,2015(1): 32-34.
Ling B, Li J X. Design of electric power monitoring and forecasting system in forest areas [J]. Forestry Machinery & Woodworking Equipment, 2015(1): 32-34.
[2] 杨刚. 电力线通信技术[M].北京:电子工业出版社,2011:1-2.
Yang G.Power line communication technologies[M].Beijing: Publishing House of Electronics Industry,2011:1-2.
[3] 陈伟, 朱维乐. 电力线OFDM系统中的一种盲信道估计方法[J]. 电子测量与仪器学报, 2011, 25(6): 512-515.
Chen W, Zhu W L. Blind channel estimation for power line OFDM systems [J]. Journal of Electronic Measurement and Instrument, 2011, 25(6): 512-515.
[4] Sun H L, Ye J. Low voltage power line carrier channel modeling and testing applications [J]. WIT Transactions on Modeling and Simulation, 2014,60: 453-460.
[5] 全国无线电干扰标准化技术委员会. GB/T 6113.102—2008无线电骚扰和抗扰度测量设备和测量方法规范第1-2部分:辅导设备传导骚扰[S]. 北京: 中国标准出版社, 2008.
[6] 曹敏,李波,毕志周,等.低压电力线载波通信性能测试方法研究[J].电测与仪表, 2012, 49(10):46-51.
Cao M,Li B,Bi Z Z, et al. Research on the performance test methods of low voltage power line carrier communication [J].Electrical Measurement & Instrumentation,2012, 49(10):46-51.
[7] 郑加强,徐幼林.精确林业传感技术和无线传感器网络研究进展[J].林业工程学报,2016,1(2):9-16.Doi:10.13360/j.issn.2096-1359.2016,02.002.
Zheng J Q, Xu Y L. Review and prospect of sensing technologies and wireless sensor networks for precision forestry[J]. Journal of Forestry Engineering, 2016,1(2):9-16.
[8] 全国电力系统管理及其信息交换标准化技术委员会. GB/T 7329—2008电力线载波结合设备[S]. 北京: 中国标准出版社, 2008.
[9] ST Microelectronics.ST7538Q FSK power line transceiver demonstration kit description[EB/OL].
[2008-02-20].http://www.st.com/web/en/catalog/apps/SE408/AS417/AC434?icmp=ac434_fp_pf259472_apr2014.
[10] Texas Instruments Incorporated. Power line communication motherboard with AC mains line[EB/OL].
[2014-03-20].http://www.ti.com/tool/tida-00192.
[11] Yin Q, Zhang J B. Design of power line carrier communication system based on FSK-KQ330 module[J]. Electrotehnica Electronica Automatica, 2014,62(3):135-142.
[12] Analog Devices, Inc. AD8061 Datasheet [EB/OL].
[2013-05-05].http://www.analog.com/cn/products/amplifiers/operational-amplifiers/general-purpose-amplfiers/ad8061.html.
[13] Analog Devices, Inc. ADR5040 Datasheet [EB/OL].
[2012-08-10].http://www.analog.com/cn/products/linear-products/voltage-references/adr5040.html.
[14] STMicroelectronics.STM32F407VG datasheet [EB/OL].
[2013-06-01].http://www.st.com/web/catalog/mmc/FM141/SC1169/SS1577/LN11/PF252140.
[15] 深圳市川航电子科技有限公司. 22脚240128液晶显示模块[EB/OL].
[2015-04-08](2014-04-15).http://www.szchlcd.com/product-zl.php?cid=36 & id=74.
Shenzhen Chuanhang Electronic Technology CO, LTD. 22 pins 240128 LCD module[EB/OL].
[2015-04-08](2014-04-15). http://www.szchlcd.com/product-zl.php?cid=36 & id=74.
[16] 北京伟仕天成科技有限公司.AC-DC电源模块5W [EB/OL].
[2013-06-01].http://www.wispower.com/chanpinxinxi/AC_DCdianyuanmokuai/28.html.
Wispower Corporation. AC-DC Power Module 5W [EB/OL].
[2013-03-17].http://www.wispower.com/chanpinxinxi/AC_DCdianyuanmokuai/28.html.
[17] STMicroelectronics. STM32F3 and STM32F4 Series Cortex-M4 programming manual [EB/OL].
[2008-02-02].http://www.st.com/web/catalog/mmc/FM141/SC1169/SS1577/LN11/PF252140#.
[18] 曹伟, 蔡伟义, 姚嘉凌,等. 基于PC机的汽车故障诊断系统研究[J]. 南京林业大学学报(自然科学版), 2010, 34(1): 113-116. Doi:10.3969/j.issn.1000-2006.2010.01.23.
Cao W, Cai W Y, Yao J L, et al. Study on the key technique of PC-based vehicle fault diagnosis [J]. Journal of Nanjing Forestry University(Natural Sciences Edition), 2010, 34(1): 113-116.
[19]电力行业电测量标准化技术委员会.DL/T 645—2007 多功能电能表通信协议[S].北京:中国标准出版社, 2007.
基金
收稿日期:2015-08-09 修回日期:2016-02-11
基金项目:江苏省高校自然科学研究面上项目(15KJD550001); 高等学校博士学科点科研基金资助项目(20103204110006); 江苏省高校研究生科研创新计划(KYZZ_0249)
第一作者:齐亮(cocoqlg@163.com)。*通信作者:赵茂程(mczhao@njfu.edu.cn),教授,博士。
引文格式:齐亮,赵茂程. 一种手持式电力线载波频谱分析仪的研制[J]. 南京林业大学学报(自然科学版),2016,40(3):149-155.
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