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Micro environment control system of Mogao Grottoes in Dunhuang

Published:2015-06-10 author:ZHANG Chun-ting，WANG Lin-kun，HOU Yan-nian，GUO JIAN Browse: 3548 Check PDF documents

Micro environment control system of Mogao Grottoes in Dunhuang

ZHANG Chun-ting，WANG Lin-kun，HOU Yan-nian，GUO JIAN

（Network Control Research Center，Instrumentation Technology and Economy Institute，Beijing 100055，China）

Abstract： Aiming at micro environmental variation inside the cave of Mogao Grottoes include temperature，humidity and the

concentration of carbon dioxide has significant influence to the preservation of cultural relics consist of murals，statues and so on，a set of

micro environment control system were developed. The system mainly was composed of automatic partition doors and wireless

transmission network. The controller based on the digital signal processor（DSP）as the core，sheer curtain，sealing curtain，shutter etc

were installed on the door. By adjusting shutter's rotating angle，the air volume and wind speed into the cave were controlled. When the

natural ventilation cannot adjust the cave micro environment，the method of active air supply makes temperature，humidity in the cave

keep constant and decreases the concentration of carbon dioxide. Wireless transmission network consists of wireless environment

monitoring sensor，wireless multi function gateway，router and F5 communication module，which realizes the cave micro environment data

acquisition and auto door's remote control. The result of experiment shows that the micro environment control system has a certain effect

on regulating the micro environmental temperature，humidity and the concentration of carbon dioxide.

Key words：micro environment；auto partition door；digital signal processor（DSP）

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