智能仪表系统中的抗干扰研究

Anti-interference Technique in an Intelligent Meter

智能仪表的抗干扰能力和可靠性是其能否商品化的关键.本文作者在硬件设计上,将抗干扰的重点放在对主干扰源的监视上,采用国外最新开发的电压监视器件并设计相应的处理软件.在软件设计上,针对MCS-51单片机的结构特点和机器码特征,总结出七种软件抗干扰方法.这些方法的采用,使系统的抗干扰能力出现了飞跃.

The ability of anti-interference and reliability are the key to an intelligent meter. In hardware design, special attention is paid to the monitor of the main interference sources, a nwely developed voltage monitor chip is adopted and fitted with software. In view of the characteristics of the structure and instruction of the single-board computer MCS-51, the authors present seven software anti-interference methods, with which a leap in the anti-interference capability has been made.