摘要
基于双音多频(DTMF)编码的电力线载波系统由DTMF编码芯片HT9200和译码芯片MT8870、模拟乘法器MC1496和电力线耦合电路组成,并采取了硬件抗干扰及软件纠错措施。大量试验表明,该系统具有非常高的可靠性。
A carrier wave system that is based upon Dual-Tone Multi-Frequency(DTMF)on power line is introduced in this paper.DTMF coding chip HT9200,DTMF decoding chip MT8870and analog-multiplier MC1496are used in this system.And the measures of resisting interfere and correcting software errors are taken in particular.A great lot of experiments show that this system has a very high reliability.
出处
《山东交通学院学报》
CAS
2002年第4期58-61,共4页
Journal of Shandong Jiaotong University
