Wireless charging and positioning device and method

Abstract

A wireless charging and positioning device, adapted to a mobile vehicle, includes: an ultra-wideband transceiver disposed at the mobile vehicle, and configured to transmit a pulse wave signal and receive a reflected signal in response to the pulse wave signal; a charging coil disposed at the mobile vehicle, and controlled to charging a battery of the mobile vehicle; and a signal processor connected to the ultra-wideband transceiver and the charging coil, the signal processor configured to control the ultra-wideband transceiver to transmit the pulse wave signal and obtain the reflected signal when the mobile vehicle locates in a designated area where a power supply device is disposed in, determine a distance between the mobile vehicle and the power supply device according to the reflected signal, and control the charging coil to receive power from the power supply device to charge the battery when the distance falls within a default range.

What is claimed is: 
     
         1 . A wireless charging and positioning device, adapted to a mobile vehicle, comprising:
 an ultra-wideband transceiver disposed at the mobile vehicle, and configured to transmit a pulse wave signal and receive a reflected signal in response to the pulse wave signal;   a charging coil disposed at the mobile vehicle, and controlled to charging a battery of the mobile vehicle; and   a signal processor connected to the ultra-wideband transceiver and the charging coil, and configured to control the ultra-wideband transceiver to transmit the pulse wave signal and obtain the reflected signal when the mobile vehicle locates in a designated area where a power supply device is disposed in, determine a distance between the mobile vehicle and the power supply device according to the reflected signal, and control the charging coil to receive power from the power supply device to charge the battery when the distance falls within a default range.   
     
     
         2 . The wireless charging and positioning device according to  claim 1 , wherein the mobile vehicle has an automatic pilot system, and the wireless charging and positioning device further comprises:
 a battery management system connected to the signal processor, and configured to be connected to the battery of the mobile vehicle and measure the battery to generate a charging efficiency;   wherein the signal processor is further configured to be connected to the automatic pilot system, receive the charging efficiency from the battery management system, determine whether the charging efficiency satisfies a default efficiency, and notify the automatic pilot system to adjust a direction or position of a vehicle body of the mobile vehicle when the charging efficiency does not satisfy the default efficiency.   
     
     
         3 . The wireless charging and positioning device according to  claim 1 , further comprising:
 a battery management system connected to the signal processor, and configured to be connected to the charging coil and measure the charging coil to generate an inductance value;   wherein the signal processor is further configured to control the charging coil to stop receiving the power when the inductance value falls within a foreign object detection range.   
     
     
         4 . The wireless charging and positioning device according to  claim 3 , further comprising:
 a gateway connected to the signal processor,   wherein the signal processor is further configured to output a notification through the gateway when the inductance value falls within the foreign object detection range.   
     
     
         5 . The wireless charging and positioning device according to  claim 1 , wherein the mobile vehicle has an automatic pilot system, and the wireless charging and positioning device further comprises:
 a gateway connected to the signal processor, and configured to receive designated time and the designated area,   wherein the signal processor is further configured to be connected to the automatic pilot system, and notify the automatic pilot system to move the mobile vehicle to the designated area at the designated time.   
     
     
         6 . A wireless charging and positioning method, performed by a signal processor, comprising:
 obtaining information associated with a location of a mobile vehicle;   controlling an ultra-wideband transceiver to transmit a pulse wave signal and obtain a reflected signal when the location of the mobile vehicle is in a designated area where a power supply device is disposed in;   determining a distance between the mobile vehicle and the power supply device according to the reflected signal;   determining whether the distance falls within a default range; and   controlling a charging coil of the mobile vehicle to receive power from the power supply device to charge a battery of the mobile vehicle when the distance falls within a default range.   
     
     
         7 . The wireless charging and positioning method according to  claim 6 , wherein the mobile vehicle has an automatic pilot system, and the method further comprises:
 controlling a battery management system to measure the battery to generate a charging efficiency;   determining whether the charging efficiency satisfies a default efficiency; and   notifying the automatic pilot system to adjust a direction or position of a vehicle body of the mobile vehicle when the charging efficiency does not satisfy the default efficiency.   
     
     
         8 . The wireless charging and positioning method according to  claim 6 , further comprising:
 controlling a battery management system to measure the charging coil to generate an inductance value;   determining whether the inductance value falls within a foreign object detection range; and   controlling the charging coil to stop receiving the power when the inductance value falls within the foreign object detection range.   
     
     
         9 . The wireless charging and positioning method according to  claim 8 , further comprising:
 outputting a notification through a gateway when the inductance value falls within the foreign object detection range.   
     
     
         10 . The wireless charging and positioning method according to  claim 6 , wherein the mobile vehicle has an automatic pilot system, and controlling the mobile vehicle to move to the designated area where the power supply device is disposed at comprises:
 controlling a gateway to receive designated time and the designated area; and   notifying the automatic pilot system to move the mobile vehicle to the designated area at the designated time.