Transmission transmission method, apparatus and system for

Embodiment of the present invention provides a method of transmitting transmission types, device and system. Transmission apparatus according to the present invention, transmitting, receiving transmission device for wireless transmission, the transmitting power transmission apparatus comprising: a transmission circuit and a coil, the signal transmitting unit comprises a transmission circuit and a control unit, said coil comprising at least two mutually perpendicular sub-coil; the signal transmitting unit for receiving the transmission equipment receiving the transmitted signal and the actual power demand received power signal; a control unit for adjusting the transmission to the reception apparatus for the wireless transmission of the magnetic field direction, and optimal control of the coil in the magnetic field direction of the receiving apparatus transmitting transmission power, the optimum magnetic field direction refers to a given output power of the coil case, the transmission power value of the power receiving apparatus receives the actual maximum when the corresponding magnetic field direction. Embodiments of the present invention to solve the problem of low efficiency of power transfer.