Monitoring coal fires in Datong coalfield using multi-source remote sensing data

Numerous coal fires burn underneath the Datong coalfield because of indiscriminate mining.Landsat TM/ETM,unmanned aerial vehicle（UAV）,and infrared thermal imager were employed to monitor underground coal fires in the Majiliang mining area.The thermal field distributions of this area in 2000,2002,2006,2007,and 2009 were obtained using Landsat TM/ETM.The changes in the distribution were then analyzed to approximate the locations of the coal fires.Through UAV imagery employed at a very high resolution（0.2 m）,the texture information,linear features,and brightness of the ground fissures in the coal fire area were determined.All these data were combined to build a knowledge model of determining fissures and were used to support underground coal fire detection.An infrared thermal imager was used to map the thermal field distribution of areas where coal fire is serious.Results were analyzed to identify the hot spot trend and the depth of the burning point.

维修工程渗漏原因分析及治理技术

本文针对某档案馆工程屋面、外墙存在的渗漏问题,利用无人机携带红外热像仪,对维修工程渗漏现状进行拍摄,通过红外热成像法对渗漏原因进行分析,据此制定维修方案,并严格组织实施,出现的渗漏问题得到了有效地处理,为今后社会上大量维修工程渗漏质量问题的现状检查、原因分析、治理方案的制定及治理提供了一种可以借鉴的解决方法。