College;
of;
Electronic;
Information;
and;
Control;
Engineering,;
Shandong;
Institute;
of;
Light;
Industry,;
Jinan;
250100,;
China;
State;
Key;
Laboratory;
of;
Coal;
Resources;
and;
Safe;
Mining,;
China;
University;
of;
Mining;
&;
Technology,;
Beijing;
100083,;
China;