A remote wireless charging transmit end, wherein the transmit end is configured to wirelessly charge a receive end, and the transmit end comprises a transmit end processor, a fundamental frequency-radio frequency conversion unit, and a transmit end antenna; the transmit end processor is configured to: generate a composite signal combining a control signal and a power signal, and send the composite signal to the fundamental frequency-radio frequency conversion unit, wherein the control signal is configured to control a working status of the receive end, and the power signal is configured to charge the receive end; wherein the working status of the receive end includes that the receive end is powered on or the receive end sleeps; wherein the transmit end processor is configured to generate the control signal such that, when a battery level of the receive end is lower than a preset battery level, the receive end is controlled to be powered on and is wirelessly charged; wherein the transmit end is configured to wirelessly charge a plurality of receive ends, wherein the transmit end processor is configured to generate the control signal such that, if a battery level of all the plurality of receive ends is simultaneously lower than the preset battery level, some receive ends are controlled to enter a sleep working state and are not charged, and a receive end that is not in the sleep state is wirelessly charged first; after the charged receive end is fully charged or charged to a battery level with which the receive end can work, the receive end in the sleep state is wirelessly charged; the fundamental frequency-radio frequency conversion unit is configured to: convert the composite signal into a radio frequency signal, and send the radio frequency signal to the transmit end antenna; and the transmit end antenna is configured to transmit the radio frequency signal corresponding to the composite signal. the transmit end processor is configured to: generate a composite signal combining a control signal and a power signal, and send the composite signal to the fundamental frequency-radio frequency conversion unit, wherein the control signal is configured to control a working status of the receive end, and the power signal is configured to charge the receive end; wherein the working status of the receive end includes that the receive end is powered on or the receive end sleeps; wherein the transmit end processor is configured to generate the control signal such that, when a battery level of the receive end is lower than a preset battery level, the receive end is controlled to be powered on and is wirelessly charged; wherein the transmit end is configured to wirelessly charge a plurality of receive ends, wherein the transmit end processor is configured to generate the control signal such that, if a battery level of all the plurality of receive ends is simultaneously lower than the preset battery level, some receive ends are controlled to enter a sleep working state and are not charged, and a receive end that is not in the sleep state is wirelessly charged first; after the charged receive end is fully charged or charged to a battery level with which the receive end can work, the receive end in the sleep state is wirelessly charged; the fundamental frequency-radio frequency conversion unit is configured to: convert the composite signal into a radio frequency signal, and send the radio frequency signal to the transmit end antenna; and the transmit end antenna is configured to transmit the radio frequency signal corresponding to the composite signal. convert the composite signal into a radio frequency signal, and send the radio frequency signal to the transmit end antenna; and the transmit end antenna is configured to transmit the radio frequency signal corresponding to the composite signal.