Research of Underground Alarming System of Temperature and Humidity Based on Zero-cross Modulation Technology

CHEN Yong-li; WANG Chang-long; LI De-liang

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Article Navigation > Journal of Mine Automation > 2005 > 31(4): 31-33

CHEN Yong-li, WANG Chang-long, LI De-liang. Research of Underground Alarming System of Temperature and Humidity Based on Zero-cross Modulation Technology[J]. Industry and Mine Automation, 2005, 31(4): 31-33.

Citation:

CHEN Yong-li, WANG Chang-long, LI De-liang. Research of Underground Alarming System of Temperature and Humidity Based on Zero-cross Modulation Technology[J]. Industry and Mine Automation, 2005, 31(4): 31-33.

Citation:

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Research of Underground Alarming System of Temperature and Humidity Based on Zero-cross Modulation Technology

Dept. of Control Engineering of Ordnance Enginieering College, Shijiazhuang 050003, China

Publish Date: 2005-08-10

Abstract

Abstract

The zero-cross modulation technology uses exsisting power distribution network as transmition carrier. Because it needn’t increase additional system equipments, it is low-cost. In this paper, the design of alarming system of temperature and humidity based on zero-cross modulation technology and the constitution were introduced. By field application, it made chear that the design is in reason and the reliability is high.
- mine,
- temperature detect,
- humidity detect,
- alarming,
- zero-cross modulatio