Terminal devices and method for handling charging anomaly

Abstract

Terminal devices and a method for handling a charging anomaly are provided. The terminal device is configured to form a charging loop with a power adapter via power wires in a Universal Serial Bus (USB) interface of the terminal device to charge a battery of the terminal device, and the terminal device communicates with the power adapter via data wires in the USB interface. The terminal includes a processor and a non-transitory computer-readable storage medium storing instructions. The instructions are executed by the processor to cause the terminal device to determine charging parameter information of the power adapter, and protect the charging loop in response to determining that an anomaly occurs on the charging loop according to the charging parameter information, where the charging parameter information includes at least one of an output voltage of the power adapter or an output current of the power adapter.

What is claimed is: 
     
         1 . A terminal device, the terminal device being configured to form a charging loop with a power adapter via power wires in a Universal Serial Bus (USB) interface of the terminal device to charge a battery of the terminal device, and the terminal device communicating with the power adapter via data wires in the USB interface, the terminal device comprising:
 a processor; and   a non-transitory computer-readable storage medium storing a plurality of instructions;   the plurality of instructions being executed by the processor to cause the terminal device to:   determine charging parameter information of the power adapter, the charging parameter information comprising at least one of an output voltage of the power adapter or an output current of the power adapter; and   in response to determining that an anomaly occurs on the charging loop according to the charging parameter information, protect the charging loop.   
     
     
         2 . The terminal device of  claim 1 , wherein the instructions executed by the processor to cause the terminal device to protect the charging loop cause the terminal device to:
 control the charging loop to enter into a protection state.   
     
     
         3 . The terminal device of  claim 1 , wherein the instructions executed by the processor to cause the terminal device to protect the charging loop cause the terminal device to:
 send charging protection indication information to the power adapter to indicate the power adapter to control the charging loop to enter into a protection state.   
     
     
         4 . The terminal device of  claim 1 , wherein the instructions executed by the processor to cause the terminal device to protect the charging loop cause the terminal device to:
 control the charging loop to enter into a protection state; and   send charging protection indication information to the power adapter to indicate the power adapter to control the charging loop to enter into the protection state.   
     
     
         5 . The terminal device of  claim 1 , wherein the instructions executed by the processor to cause the terminal device to protect the charging loop cause the terminal device to perform at least one of:
 reducing an input voltage from the power adapter to the terminal device;   reducing an input current from the power adapter to the terminal device; or   disconnecting the charging loop.   
     
     
         6 . The terminal device of  claim 1 , wherein the instructions executed by the processor to cause the terminal device to determine the charging parameter information cause the terminal device to:
 receive the charging parameter information from the power adapter via the data wires in the power adapter.   
     
     
         7 . The terminal device of  claim 1 , wherein the instructions executed by the processor to cause the terminal device to:
 determine that the anomaly occurs on the charging loop in response to the output voltage of the power adapter being higher than a voltage threshold.   
     
     
         8 . The terminal device of  claim 1 , wherein the instructions executed by the processor to cause the terminal device to:
 determine that the anomaly occurs on the charging loop in response to the output current of the power adapter being higher than a current threshold.   
     
     
         9 . A method for handling charging anomaly, the method being executed by a terminal device, the terminal device being configured to form a charging loop with a power adapter via power wires in a Universal Serial Bus (USB) interface of the terminal device to charge a battery of the terminal device, and the terminal device communicating with the power adapter via data wires in the USB interface, the method comprising:
 determining charging parameter information of the power adapter, the charging parameter information comprising at least one of an output voltage of the power adapter or an output current of the power adapter; and   in response to determining that an anomaly occurs on the charging loop according to the charging parameter information, protecting the charging loop.   
     
     
         10 . The method of  claim 9 , wherein protecting the charging loop comprises:
 controlling the charging loop to enter into a protection state.   
     
     
         11 . The method of  claim 9 , wherein protecting the charging loop comprises:
 sending charging protection indication information to the power adapter to indicate the power adapter to control the charging loop to enter into a protection state.   
     
     
         12 . The method of  claim 9 , wherein protecting the charging loop comprises:
 controlling the charging loop to enter into a protection state; and   sending charging protection indication information to the power adapter to indicate the power adapter to control the charging loop to enter into the protection state.   
     
     
         13 . The method of  claim 9 , wherein protecting the charging loop comprises at least one of:
 reducing an input voltage from the power adapter to the terminal device;   reducing an input current from the power adapter to the terminal device; or   disconnecting the charging loop.   
     
     
         14 . The method of  claim 9 , wherein determining the charging parameter information comprises:
 receiving the charging parameter information from the power adapter via the data wires in the power adapter.   
     
     
         15 . The method of  claim 9 , further comprising:
 determining that the anomaly occurs on the charging loop in response to the output voltage of the power adapter being higher than a voltage threshold.   
     
     
         16 . The method of  claim 9 , further comprising:
 determining that the anomaly occurs on the charging loop in response to the output current of the power adapter being higher than a current threshold.   
     
     
         17 . A terminal device, the terminal device being configured to form a charging loop with a power adapter via power wires in a Universal Serial Bus (USB) interface of the terminal device to charge a battery in the terminal device, and the terminal device communicating with the power adapter via data wires in the USB interface, the terminal device comprising:
 a processor; and   a non-transitory computer-readable storage medium storing a plurality of instructions;   the plurality of instructions being executed by the processor to cause the terminal device to:   receive charging parameter information of the power adapter from the power adapter via the data wires in the USB interface, the charging parameter information comprising at least one of an output voltage of the power adapter or an output current of the power adapter; and   in response to determining that an anomaly occurs on the charging loop according to the charging parameter information, protect the charging loop by performing at least one of:
 control the charging loop to enter into a protection state; or 
 send charging protection indication information to the power adapter to indicate the power adapter to control the charging loop to enter into the protection state. 
   
     
     
         18 . The terminal device of  claim 17 , wherein the instructions executed by the processor to cause the terminal device to control the charging loop to enter into the protection state cause the terminal device to perform at least one of:
 reducing an input voltage from the power adapter to the terminal device;   reducing an input current from the power adapter to the terminal device; or   disconnecting the charging loop.   
     
     
         19 . The terminal device of  claim 17 , wherein the instructions executed by the processor to cause the terminal device to:
 determine that the anomaly occurs on the charging loop in response to the output voltage of the power adapter being higher than a voltage threshold.   
     
     
         20 . The terminal device of  claim 17 , wherein the instructions executed by the processor to cause the terminal device to:
 determine that the anomaly occurs on the charging loop in response to the output current of the power adapter being higher than a current threshold.