Data transmission method and system, and bluetooth headphone

A target Bluetooth headphone, comprising:

• one or more Bluetooth module(s), configured to connected with a mobile terminal and another Bluetooth headphone over Bluetooth;
• a microphone, configured to acquire sound signals;
• a speaker, configured to play corresponding audio data;
• a processor;
• a memory;
• and
• one or more program(s), wherein the one or more program(s) is(are) stored in the memory and configured to be executed by the processor, the one or more program(s) is(are) configured to perform a data transmission method, wherein the method comprises:
• acquiring sound signals and converting the sound signals into first audio data;
• determining whether the another Bluetooth headphone transmitting audio data to the target Bluetooth headphone is in a first transmission direction of the target Bluetooth headphone or in a second transmission direction of the target Bluetooth headphone, by judging a first number and a second number which is greater;
• wherein the second transmission direction is opposite to the first transmission direction, the first number is the number of Bluetooth headphones between the another Bluetooth headphone and the mobile terminal, and the second number is the number of Bluetooth headphones between the target Bluetooth headphone and the mobile terminal;
• when the first number is greater than the second number, determining the another Bluetooth headphone is in the first transmission direction of the target Bluetooth headphone, receiving audio data transmitted from the another Bluetooth headphone, defining the received audio data as second audio data, mixing the first audio data and the second audio data that are simultaneously received by the target Bluetooth headphone, and transmitting the mixed audio data to the mobile terminal;
• when the second number is greater than the first number, determining the another Bluetooth headphone is in the second transmission direction of the target Bluetooth headphone, receiving audio data transmitted from the another Bluetooth headphone, defining the received audio data as third audio data, and playing the third audio data.

A data transmission system, comprising a mobile terminal and a plurality of Bluetooth headphones, wherein the mobile terminal and the plurality of Bluetooth headphones are connected in sequence over Bluetooth,

• wherein the mobile terminal is configured to receive audio data from one of the plurality of the Bluetooth headphones which is adjacent to the mobile terminal;
• wherein a target Bluetooth headphone of the plurality of the Bluetooth headphones is configured to:
• acquire sound signals and convert the sound signals into first audio data,
• determine whether another Bluetooth headphone transmitting audio data to the target Bluetooth headphone is in a first transmission direction or in a second transmission direction, by judging a first number and a second number which is greater;
• wherein the second transmission direction is opposite to the first transmission direction, there are more than one of the plurality of the Bluetooth headphones connected with the mobile terminal in the first transmission direction, the first number is the number of Bluetooth headphones between the another Bluetooth headphone and the mobile terminal, the second number is the number of Bluetooth headphones between the target Bluetooth headphone and the mobile terminal;
• when the first number is greater than the second number, determine the another Bluetooth headphone is in the first transmission direction, receive audio data transmitted from the another Bluetooth headphone and define the received audio data as second audio data;
• mix the first audio data and the second audio data that are simultaneously received, transmit the mixed audio data to an adjacent target device in the second transmission direction, wherein the adjacent target device is one of the plurality of Bluetooth headphones or the mobile terminal;
• when the second number is greater than the first number, determine the another Bluetooth headphone is in the second transmission direction, receive audio data transmitted from the another Bluetooth headphone, define the received audio data as third audio data, and play the third audio data.