Wireless charging system, wireless charging device and wireless power receiving device

A wireless charging device, comprising:

• a wireless charging module, a first function module, a processor, a biometric unit, a first Bluetooth unit, and a first communication module, wherein:
• the wireless charging module comprises a radio frequency transmitting antenna;
• the biometric unit is configured to determine a distance between the wireless charging device and a living body;
• the processor is configured to determine a distance between the wireless charging device and a wireless power receiving device according to the first Bluetooth unit and a second Bluetooth unit of the wireless power receiving device, to adjust a radio frequency power transmitted by the radio frequency transmitting antenna of the wireless charging device;
• the wireless charging module is configured to supply power to the wireless power receiving device through the radio frequency transmitting antenna;
• the first function module is configured to implement a first function subset in a function set;
• and
• the first function module is configured to communicate with a second function module in the wireless power receiving devices through the first communication module.

A wireless power receiving device, comprising:

• a wireless power receiving module, a second function module, a second Bluetooth unit, and a second communication module, wherein:
• the wireless power receiving module comprises a radio frequency receiving antenna;
• the wireless power receiving module is configured to receive power supplied by a wireless charging device through the radio frequency receiving antenna;
• the second function module is configured to implement a second function subset in a function set;
• and
• the second function module is configured to communicate with a first communication module of the wireless charging device through the second communication module,
• wherein the wireless charging device comprises a wireless charging module, a first function module, a processor, a biometric unit, a first Bluetooth unit, and the first communication module, the wireless charging module comprises a radio frequency transmitting antenna, and the biometric unit is configured to determine a distance between the wireless charging device and a living body;
• the processor is configured to determine a distance between the wireless charging device and the wireless power receiving device according to the first Bluetooth unit and the second Bluetooth unit, to adjust a radio frequency power transmitted by the radio frequency transmitting antenna of the wireless charging device;
• the wireless charging module is configured to supply power to the wireless power receiving device through the radio frequency transmitting antenna;
• the first function module is configured to implement a first function subset in the function set;
• and
• the first function module and the second function module communicate with each other through the first communication module and the second communication module.