According to the internet of things used for detecting the concentration of methane in the coal mine industry,a total solution of sensor borne with the single walled carbon nanotube loaded by palladium( Pd-SWCNTs) has been figured out on the basis of the protocol of the functionalized CNTs. The proposed sensor would be assembled by such functional modules as an antenna,a T-typed impedance match networks; a CMOS RF / DC rectifier and a Pd-SWCNTs sensor head,which being portrayed by a thin film with much flex...