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�������պ����ѧѧ�� 2011, Vol. 37 Issue (10) :1288-1292,1297    DOI: CNKI:11-2625/V.20111020.1126.007
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���1, ۨ��1, Stefan Schmitz2, Karl-Heinz Wurst2*
1. �������պ����ѧ ��е���̼��Զ���ѧԺ, ���� 100191;
2. ˹ͼ���ش�ѧ �������Ƽ����о���, ˹ͼ���� 70174
Power line communication for control system of reconfigurable machine tools
Yang Dongsheng1, Huan Ji1, Stefan Schmitz2, Karl-Heinz Wurst2*
1. School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;
2. Institute for Control Engineering of Machine Tools and Manufacturing Units, Stuttgart University, Stuttgart 70174, Germany

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ժҪ �����˿��ع�������ͨ��ϵͳ��Ҫ��,�����һ�ֻ��ڿ��������ͨ��(PLC, Power Line Communication)����������ͨ��ϵͳ.ͨ���Ի��������ߵ��ŵ����Ժ�����Ƶ�׵ķ��������,ѡ����ͨ��ϵͳ���ز�Ƶ�ʺʹ���Ȳ���.Ϊ�˶Կ��������ŵ��ĶྶЧӦ,���Ƶ��������,ʵ�ֿɿ���Ч�����ݴ���,��������Ƶ�ָ��ü���(OFDM, Orthogonal Frequency Division Multiplex)��Ϊ���ƽ����ʽ.������PLC���ƽ����,�����������֡�ṹ.����Ի��������ŷ�ϵͳΪ���Ը�ͨ��ϵͳ������ʵ����֤.ʵ��������,��ϵͳʵ������Ч���ݴ�����10 Mbit/s,�������(BER, Bit Error Rate)С��10-8�ĸ�Ч���ݴ���.
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Abstract�� The communication system requirements for reconfigurable machine tools were analyzed. A new communication system based on PLC (power line communication) was proposed. The carrier frequency and bandwidth of the communication system were settled according to the channel characteristics and noise spectrum of the power line in machine tools. To deal with multipath fading, improve the spectral efficiency, and obtain a high speed data transmission, OFDM (orthogonal frequency division multiplex) was employed as means of modulation and demodulation. A PLC modem was developed. The PHY (physical layer) frame structure was defined. A field test system based on main spindle servo system was set up. The experimental results show that it achieves a data rate of 10 Mbit/s with BER (bit error rate) less than 10-8.
Keywords�� reconfigurable machine tools   power line communication   orthogonal frequency division multiplex     
Received 2010-06-07;
Fund:

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About author: ���(1980-),��,�ӱ��ػʵ���,��ʿ��,yds@me.buaa.edu.cn.
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���, ۨ��, Stefan Schmitz, Karl-Heinz Wurst.���ڿ��ع���������ϵͳ�ĵ�����ͨ�ż���[J]  �������պ����ѧѧ��, 2011,V37(10): 1288-1292,1297
Yang Dongsheng, Huan Ji, Stefan Schmitz, Karl-Heinz Wurst.Power line communication for control system of reconfigurable machine tools[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2011,V37(10): 1288-1292,1297
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http://bhxb.buaa.edu.cn//CN/CNKI:11-2625/V.20111020.1126.007     ��     http://bhxb.buaa.edu.cn//CN/Y2011/V37/I10/1288
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