A new detection method based on image recognition with a system of synthetic criterion is presented, in which information fusion is applied to enhance the validity and reliability of coalmine spontaneous combustion detection.

After analyzing the dead zone by usinge of existing method to detect earthing fault in DC system,this paper presents a new method-synthetic criterion,which monitors and finds out such earthing fauit in DC system by detecting the voltage of positive and negative buses,positive and negative pole insulation resistance,and the leaking current sub-circuit.

Study on comprehensive criteria for regional prediction of coal and gas outburst;

Study on comprehensive criteria for the medium and short term earthquake anomaly in East China;

Development of fault line selection device based on integrated criterion for indirectly grounding power system;

Study of transformer differential protection based on the CT-saturation-integrate-method;