Method and apparatus for establishing single-line connection, and wireless headset and charging box

1. A method for establishing a single-line connection, comprising:

determining, by a wireless earphone, whether a power supply contact of a charging box is in a communication mode, wherein a charging contact of the wireless earphone is connected to the power supply contact of the charging box; and

switching the charging contact from a charging mode to a communication mode to establish a single-line connection with the charging box when determining that the power supply contact of the charging box is in the communication mode, wherein the single-line connection is cut off by switching the charging contact of the wireless earphone to the charging mode before switching the power supply contact of the charging box to the charging mode.

2. The method for establishing a single-line connection according to claim 1 , wherein the determining, by a wireless earphone, whether a power supply contact of a charging box is in a communication mode comprises:

determining, by the wireless earphone, whether a voltage of the charging contact is within a preset range; and

performing the step of switching the charging contact from a charging mode to a communication mode to establish a single-line connection with the charging box, when determining that the voltage of the charging box is within the preset range.

3. The method for establishing a single-line connection according to claim 1 , wherein before the switching the charging contact from a charging mode to a communication mode to establish a single-line connection with the charging box, the method for establishing a single-line connection further comprises:

starting Bluetooth Low Energy (BLE) scanning, and receiving command information sent by the charging box through BLE broadcasting, wherein the command information comprises request data information and data information.

4. The method for establishing a single-line connection according to claim 3 , wherein after the switching the charging contact from a charging mode to a communication mode to establish a single-line connection with the charging box, the method for establishing a single-line connection further comprises:

sending single-line connection disconnection information to the charging box via the charging contact in a case that the command information is the data information; and

switching the charging contact to the charging mode after sending the single-line connection disconnection information.

5. The method for establishing a single-line connection according to claim 3 , wherein after the switching the charging contact from a charging mode to a communication mode to establish a single-line connection with the charging box, the method for establishing a single-line connection further comprises:

sending a BLE scanning command and a single-line connection disconnection command to the charging box via the charging contact and sending data corresponding to the request data information to the charging box through BLE broadcasting, in a case that the command information is the request data information; and

switching the charging contact to the charging mode after sending the BLE scanning command and the single-line connection disconnection command.

6. The method for establishing a single-line connection according to claim 1 , wherein after the switching the charging contact from a charging mode to a communication mode to establish a single-line connection with the charging box, the method for establishing a single-line connection further comprises:

sending status information to the charging box via the charging contact, wherein the status information comprises power information and pairing information of the wireless earphone; and

switching the charging contact to the charging mode after sending the status information.

7. The method for establishing a single-line connection according to claim 6 , wherein the switching the charging contact to the charging mode after sending the status information comprises:

sending a single-line connection disconnection command to the charging box via the charging contact after sending the status information; and

switching the charging contact to the charging mode after sending the single-line connection disconnection command.

8. A wireless earphone, comprising:

a charging contact;

a communication interface;

a memory configured to store a computer program; and

a processor configured to execute the computer program to perform the method for establishing a single-line connection according to claim 1 .

9. A true wireless stereo (TWS) headset, comprising:

a first wireless earphone; and

a second wireless earphone, wherein each of the first wireless earphone and the second wireless earphone is the wireless earphone according to claim 8 .

10. An apparatus for establishing a single-line connection, comprising:

a determining module configured to determine whether a power supply contact of a charging box is in a communication mode, wherein a charging contact of a wireless earphone is connected to the power supply contact of the charging box; and

a switching module configured to switch the charging contact from a charging mode to a communication mode to establish a single-line connection with the charging box, in a case that the power supply contact of the charging box is determined as in the communication mode, wherein the single-line connection is cut off by switching the charging contact of the wireless earphone to the charging mode before switching the power supply contact of the charging box to the charging mode.

11. A method for establishing a single-line connection, comprising:

determining, by a charging box, whether to establish a single-line connection with a wireless earphone, wherein a power supply contact of the charging box is connected to a charging contact of the wireless earphone; and

switching the power supply contact from a charging mode to a communication mode when determining to establish a single-line connection with a wireless earphone, wherein the single-line connection is cut off by switching the charging contact of the wireless earphone to the charging mode before switching the power supply contact of the charging box to the charging mode.

12. The method for establishing a single-line connection according to claim 11 , wherein the determining, by a charging box, whether to establish a single-line connection with a wireless earphone comprises:

determining, by the charging box, whether to send command information to the wireless earphone, wherein the command information comprises request data information and data information; and

performing the step of switching the power supply contact from a charging mode to a communication mode when determining to send command information to the wireless earphone.

13. The method for establishing a single-line connection according to claim 12 , wherein after the switching the power supply contact from a charging mode to a communication mode, the method for establishing a single-line connection further comprises:

sending the command information to the wireless earphone through BLE broadcasting.

14. The method for establishing a single-line connection according to claim 11 , wherein after the switching the power supply contact from a charging mode to a communication mode, the method for establishing a single-line connection further comprises:

receiving, via the power supply contact, status information sent by the wireless earphone, wherein the status information comprises power information and pairing information of the wireless earphone.

15. The method for establishing a single-line connection according to claim 14 , wherein after the receiving status information sent by the wireless earphone, the method for establishing a single-line connection further comprises:

determining whether a cover of the charging box is closed; and

switching the power supply contact to a charging mode when determining that the cover of the charging box is closed.

16. A headset box, comprising:

two power supply contacts;

a communication interface;

a memory configured to store a computer program; and

a processor configured to execute the computer program to perform the method for establishing a single-line connection according to claim 11 .