基于电源载波的两总线智能化气体检测系统

Two-wire Smart Gas Detecting System Based on Power Carrier

介绍了一种两总线智能化的气体检测系统的工作原理及设计方法。探测器采用抗中毒型催化燃烧式气体传感器,用红外遥控调节零点和增益。通讯采用直流电源载波方法,信号线与电源线公用,不仅降低了布线成本,而且提高了系统可靠性。

Introduced the operating principle and the design method for a novel smart gas detecting system based on two-wire system. The detector employed anti-poisoning catalysis combustion sensor, and its zero and amplification were adjusted by an infrared remote controller. Using the DC power carrier technology, the signal was modulated into the power wire, which can not only reduce the wiring cost, but also improve the system reliability.