WO2021082263A1 - 无线耳机与充电盒通信的方法、充电盒、tws耳机及*** - Google Patents

无线耳机与充电盒通信的方法、充电盒、tws耳机及*** Download PDF

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Publication number
WO2021082263A1
WO2021082263A1 PCT/CN2019/129580 CN2019129580W WO2021082263A1 WO 2021082263 A1 WO2021082263 A1 WO 2021082263A1 CN 2019129580 W CN2019129580 W CN 2019129580W WO 2021082263 A1 WO2021082263 A1 WO 2021082263A1
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WIPO (PCT)
Prior art keywords
interface
earphone
charging
wireless headset
box
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PCT/CN2019/129580
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English (en)
French (fr)
Inventor
陈强
杨培
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歌尔股份有限公司
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Priority to US17/766,788 priority Critical patent/US20230403607A1/en
Publication of WO2021082263A1 publication Critical patent/WO2021082263A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1025—Accumulators or arrangements for charging
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C11/00—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C11/00—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00
    • A45C2011/001—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00 for portable audio devices, e.g. headphones or MP3-players

Definitions

  • the present invention relates to the technical field of earphone communication, in particular to a method for communicating between a wireless earphone and a charging box, a charging box, a TWS earphone and a system.
  • Wireless earphones are widely used because of their wireless and lightweight advantages. Due to the small battery capacity and short standby time, TWS earphones are generally used with a charging box. In order to reduce the contact interface between the earphone box and the wireless earphone as much as possible, in the prior art, there is a scheme of multiplexing the charging interface and communication interface of the earphone box and the wireless earphone, but the contact interface between the earphone box and the wireless earphone is multiplexed. When used as a communication interface, there is a problem of low communication reliability.
  • the purpose of the present invention is to provide a method for communicating between a wireless headset and a charging box, a charging box, a TWS headset, and a system, an interactive confirmation mechanism is added before the charging box and the wireless headset communicate, and the reliability of the communication between the charging box and the wireless headset is improved .
  • the present invention provides a method for communicating between a wireless headset and a charging box.
  • the charging box includes a first processor, a headset box I/O control module, and a first I/O interface.
  • the method is applied to
  • the first processor includes:
  • control the earphone box I/O control module After receiving the box opening signal, control the earphone box I/O control module to set the working attribute of the first I/O interface as a communication interface;
  • the method before sending the preset negotiation signal to the wireless headset through the first I/O interface, the method further includes:
  • the method further includes:
  • Control the earphone box I/O control module to set the working attribute of the first I/O interface as a charging interface, so as to enter a mode for charging the wireless earphones.
  • the method before sending the preset negotiation signal to the wireless headset through the first I/O interface, the method further includes:
  • the wireless headset Before entering the communication mode with the wireless headset, it also includes:
  • the interface for communicating with the wireless headset in the first processor is configured as the TX port by the GPIO interface.
  • the present invention also provides a method for communicating between a wireless headset and a charging box.
  • the wireless headset includes a second processor, a headset I/O control module, a second I/O interface, and a second I/O interface.
  • the third I/O interface shorted by the second I/O interface. This method is applied to the second processor and includes:
  • reply the negotiation confirmation signal corresponding to the preset negotiation signal through the third I/O interface, and control the headset I/O control module to change the working attributes of the second I/O interface after the reply is completed Set as a communication interface to enter the mode of communicating with the charging box.
  • the method before acquiring the preset negotiation signal output by the first I/O interface of the charging box through the third I/O interface, the method further includes:
  • the method further includes:
  • the present invention also provides a charging box, which includes a first processor, an earphone box I/O control module, and a first I/O interface;
  • the first processor is configured to execute a computer program to implement the steps of the method for communicating between the wireless headset and the charging box as described above.
  • the present invention also provides a TWS headset, including a second processor, a headset I/O control module, a second I/O interface, and a third I/O interface shorted to the second I/O interface.
  • a TWS headset including a second processor, a headset I/O control module, a second I/O interface, and a third I/O interface shorted to the second I/O interface. I/O interface;
  • the second processor is configured to execute a computer program to implement the steps of the method for communicating between the wireless headset and the charging box as described above.
  • the present invention also provides a TWS earphone system, which includes the above-mentioned charging box and the above-mentioned TWS earphone.
  • the present invention provides a communication method between a wireless earphone and a charging box.
  • the working attributes of the first I/O interface can be set through the switch box state of the charging box. Specifically, when the charging box is opened, the working attribute of the first I/O interface is first set to the communication interface.
  • the preset negotiation signal is first sent to the wireless headset, and only after receiving the wireless headset reply After the negotiation confirmation signal corresponding to the preset negotiation signal, enter the mode of communicating with the wireless headset. It can be seen that, in this application, an interactive confirmation mechanism is added before the communication between the charging box and the wireless headset, which improves the reliability of the communication between the charging box and the wireless headset.
  • the present invention also provides a charging box, a TWS earphone and a system, which have the same beneficial effects as the above-mentioned method for communicating between the wireless earphone and the charging box.
  • Figure 1 is a process flow chart of a method for communicating between a wireless earphone and a charging box provided by the present invention
  • FIG. 2 is a process flow chart of another method for communicating between a wireless headset and a charging box provided by the present invention
  • Fig. 3 is a schematic structural diagram of a TWS earphone system provided by the present invention.
  • the core of the present invention is to provide a method for wireless earphone and charging box communication, charging box, TWS earphone and system, an interactive confirmation mechanism is added before the communication between the charging box and the wireless earphone, and the communication reliability between the charging box and the wireless earphone is improved .
  • FIG. 1 is a process flowchart of a method for communicating between a wireless headset and a charging box provided by the present invention.
  • the charging box includes a first processor, an earphone box I/O control module, and a first I/O interface.
  • the method is applied to the first processor, and the method includes:
  • S12 Send the preset negotiation signal to the wireless headset through the first I/O interface
  • S13 Determine whether the negotiation confirmation signal corresponding to the preset negotiation signal from the wireless headset is received through the first I/O interface, and if yes, go to S14;
  • the method of communicating between the main earphone and the charging box in the wireless earphone is the same as the method of communicating between the slave earphone and the charging box in the wireless earphone. Therefore, the wireless earphone in the above steps can be the wireless earphone.
  • the master headset can also be the slave headset in the wireless headset.
  • the charging box includes two actions: opening the box and closing the box.
  • opening the box it indicates that the user needs to use a wireless headset, and communication between the charging box and the wireless headset is required; when closing the box, it indicates that the wireless headset Need to charge, the charging box needs to charge the wireless headset.
  • the working attributes of the first I/O interface include two kinds of communication interface and charging interface.
  • the first processor communicates with the wireless headset through the first I/O interface; when the working attribute of the first I/O interface is set to the charging interface, The earphone box charging module in the charging box charges the wireless earphones through the first I/O interface.
  • the headphone box I/O control module is connected to the first processor and the headphone box charging module, in addition to the first I/O interface. Based on the control of the first processor, the headphone box I/O control The module optionally connects the first I/O interface with the first processor or the earphone box charging module.
  • the earphone box I/O control module is essentially a controllable single-pole double-throw switch. The first processor can control the earphone box I/O control module through high and low levels.
  • the earphone box I/O control module receives When the level is high, the first I/O interface is connected with the earphone box charging module; when the earphone box I/O control module receives the low level, the first I/O interface is connected with the first processor.
  • This application does not specifically limit the specific implementation and control of the I/O control module of the earphone box, and it is determined according to the actual situation.
  • the earphone box charging module can be connected to an external power supply, and the battery in the charging box can be charged through the USB VBUS interface, and the wireless earphones can be charged through VBUS; the battery in the charging box can also be used to charge the wireless earphones through the earphone box charging module.
  • the first processor controls the headset box I/O control module to set the working attribute of the first I/O interface to the communication interface after receiving the box opening signal, that is, the headset box I/O control module controls the first I/O interface.
  • the /O interface is connected to the first processor. Then, the first processor does not directly communicate with the wireless headset, but sends a preset negotiation signal to the wireless headset through the first I/O interface, and then turns to the monitoring state, the wireless headset If the preset negotiation signal is received, it will return a negotiation confirmation signal corresponding to the preset negotiation signal to the charging box according to the preset protocol after receiving the preset negotiation signal.
  • the charging box receives the negotiation confirmation signal . It means that the communication between the charging box and the wireless earphone is reliable, and the charging box and the wireless earphone are ready for communication, and then the charging box can communicate with the wireless earphone.
  • the communication between the charging box and the wireless headset can achieve mandatory Bluetooth pairing, headset power query, switch box action notification, and OTA upgrade triggering.
  • the preset negotiation signal can be set to a first number of square wave signals
  • the negotiation confirmation signal can be set to a second number of square wave signals, where the first number can be, but not limited to, 4.
  • the second data can be but not limited to 5.
  • the charging box sends 4 square wave signals to the wireless earphone through the first I/O interface, and the wireless earphone can collect the square wave signal by detecting the rising edge and/or falling edge of the input. After receiving 4 square wave signals, it returns 5 square wave signals. The charging box also obtains the square wave signal by detecting the rising edge and/or falling edge. After receiving the 5 square wave signals, it enters the mode of communicating with the wireless headset.
  • This application does not limit the duty cycle and quantity of the square wave signal in the preset negotiation signal and the negotiation confirmation signal, and it is determined according to the actual situation.
  • the preset negotiation signal here can also be other types of signals, as long as the purpose of this application can be achieved.
  • a single serial port circuit is also provided between the first processor and the earphone box I/O control module, which is used to realize the communication between the first processor and the earphone box I/O control module based on the half-duplex communication mode. Communication.
  • the method for communicating between the wireless earphone and the charging box provided by the present invention adds an interactive confirmation mechanism before the charging box and the wireless earphone communicate, thereby improving the communication reliability between the charging box and the wireless earphone.
  • the method before sending the preset negotiation signal to the wireless headset through the first I/O interface, the method further includes:
  • the interrupt trigger signal is sent to the wireless headset through the first I/O interface, so that the wireless headset closes the interrupt after receiving the interrupt trigger signal until the negotiation confirmation signal is returned.
  • the first processor also uses the first I/O interface before sending the preset negotiation signal to the wireless headset through the first I/O interface.
  • Send an interrupt trigger signal to the wireless headset the wireless headset closes the interrupt after receiving the interrupt trigger signal, and waits for the preset negotiation signal sent by the charging box, and returns the negotiation confirmation signal after receiving the preset negotiation signal, and when the negotiation confirmation is returned Turn on the interrupt after the signal.
  • the low level can be set as an interrupt trigger signal.
  • the wireless headset only uses the information obtained after the shutdown interruption as the preset negotiation signal, which ensures the accuracy of the obtained preset negotiation signal and improves the stability and reliability of the negotiation confirmation process.
  • the method further includes:
  • the I/O control module of the control earphone box sets the working attribute of the first I/O interface as the charging interface to enter the mode of charging the wireless earphones.
  • the foregoing embodiment mentioned that if the charging box is closed, it means that the wireless headset needs to be charged at this time.
  • the first processor receives the box-closing signal, first sends a box-closing message to the wireless headset through the first I/O interface, so that the wireless headset enters the charging mode after receiving the box-closing message, and then the first processor controls the headset box
  • the I/O control module sets the working attribute of the first I/O interface as the charging interface.
  • the headphone box I/O control module controls the first I/O interface to connect with the headphone box charging module, and the headphone box charging module passes through the first The I/O interface charges the wireless headset and enters the mode of charging the wireless headset. It can be seen that this embodiment realizes automatic switching from communication to charging, with a high degree of automation.
  • the method before sending the preset negotiation signal to the wireless headset through the first I/O interface, the method further includes:
  • the wireless headset Before entering the communication mode with the wireless headset, it also includes:
  • the interface for communicating with the wireless earphone in the first processor is configured as a TX port by a GPIO interface.
  • the A/D (Analog to Digital) interface on the main control chip (such as the second processor mentioned in the following embodiment) in the general wireless headset is less, and generally These A/D interfaces are usually used to connect sensors on wireless headsets. There are almost no free A/D interfaces. Therefore, if the charging box sends a preset negotiation signal (such as voltage value) through the TX port, the wireless headset needs to be based on the A/D interface. The voltage value after D conversion is used to determine whether to return the corresponding negotiation confirmation signal. If the A/D interface on the main control chip in the wireless headset is not enough at this time, it may be necessary to set an additional AD converter in the wireless headset, thereby increasing The volume of the wireless headset is increased, and the cost is increased.
  • a preset negotiation signal such as voltage value
  • the communication software based on TX/RX in the charging box has been basically fixed. If the negotiation software based on TX/RX is added on this basis to realize interactive negotiation, the communication software based on TX/RX needs to be carried out. The changes bring inconvenience to the subsequent transplantation of TX/RX-based communication software.
  • this application considers that there are many GPIO interfaces on the main control chip in the wireless headset, and the GPIO interface transmits high and low levels, does not occupy the AD interface on the main control chip, and does not require additional AD conversion.
  • the use of the GPIO interface does not require changes to the TX/RX-based communication software, and only needs to set up the GPIO-based negotiation software and corresponding hardware in the first processor in advance.
  • the first processor will coordinate the GPIO-based negotiation software with the corresponding hardware control to transfer the interface that communicates with the wireless headset in the first processor to the TX port.
  • the first processor Configured as a GPIO interface, so that the first processor outputs a preset negotiation signal composed of high and low levels. After the negotiation is confirmed, before entering the communication mode with the wireless headset, the above interface is configured from the GPIO interface to the TX port to ensure It does not affect the communication between the subsequent charging box and the wireless headset.
  • the first processor outputs a preset negotiation signal composed of high and low levels through the GPIO interface
  • the second processor in the wireless headset (mentioned in the following embodiments) through the third I/O interface ( Please refer to the following embodiment) Receive a preset negotiation signal composed of high and low levels, and directly determine whether to reply the corresponding negotiation confirmation signal according to the preset negotiation signal composed of high and low levels.
  • the AD interface does not require an additional AD converter, which only occupies the usually redundant GPIO interface on the second processor, which reduces the space occupied by the wireless headset and reduces the cost; in addition, there is no need to
  • the TX/RX communication software is modified to facilitate subsequent transplantation of TX/RX-based communication software. After the negotiation is confirmed, the first processor still communicates with the wireless headset through the TX interface and the RX interface, which does not affect the normal communication between the charging box and the wireless headset.
  • FIG. 2 is a flowchart of another method for communicating between a wireless earphone and a charging box provided by the present invention.
  • the wireless headset includes a second processor, a headset I/O control module, a second I/O interface, and a third I/O interface shorted to the second I/O interface.
  • the method is applied to the second processor and includes:
  • S22 Determine whether the preset negotiation signal meets the preset negotiation requirements, and if so, go to S23;
  • the wireless headset in addition to the second I/O interface for charging and communication multiplexing, also includes a third I/O interface that is shorted to the second I/O interface.
  • the function of the interface is mainly used to receive the preset negotiation signal sent by the charging box through the first I/O interface before the working attribute of the second I/O interface is converted from the charging interface to the communication interface, as mentioned in the following embodiments
  • the interrupt trigger signal is so that the second processor converts the working attribute of the second I/O interface from the charging interface to the communication interface after determining that the preset negotiation signal meets the preset negotiation requirement.
  • the working attributes of the second I/O interface include two kinds of communication interface and charging interface.
  • the second processor communicates with the charging box through the second I/O interface; when the working attribute of the second I/O interface is set to the charging interface, charging The box charges the wireless headset through the second I/O interface.
  • the earphone I/O control module is connected to the second processor and the earphone charging module in addition to the second I/O interface. Based on the control of the second processor, the earphone I/O control module connects the second processor and the earphone charging module.
  • the second I/O interface is optionally connected with the second processor or the earphone charging module.
  • the earphone I/O control module is essentially a controllable single-pole double-throw switch, and the second processor can control the earphone I/O control module through high and low levels.
  • the second I/O interface when the earphone I/O control module receives a high level, the second I/O interface is connected to the earphone charging module; when the earphone I/O control module receives a low level, the second I/O interface is connected to the second processing unit.
  • Connectors This application does not specifically limit the specific implementation and control of the earphone I/O control module, which is determined according to actual conditions.
  • the VBUS in the charging box can charge the battery in the wireless earphone through the earphone charging module.
  • a single serial port circuit is also provided between the second processor and the earphone I/O control module to implement communication between the second processor and the earphone I/O control module based on the half-duplex communication mode.
  • the method before acquiring the preset negotiation signal output by the first I/O interface of the charging box through the third I/O interface, the method further includes:
  • the method further includes:
  • the foregoing embodiment mentions that if the second processor receives the box closing message sent by the charging box, it indicates that the wireless headset needs to be charged at this time. After receiving the closing message, the second processor will set the working attribute of the second I/O interface to the charging interface through the headset I/O control module. At this time, the headset I/O control module controls the second I/O interface and When the earphone charging module is connected, the charging box can charge the wireless earphones through the second I/O interface. It can be seen that this embodiment realizes automatic switching from communication to charging, with a high degree of automation.
  • the third I/O interface is a GPIO interface.
  • the third I/O interface is used to receive a preset negotiation signal composed of high and low levels.
  • FIG. 3 is a schematic structural diagram of a TWS headset system provided by the present invention.
  • the present invention also provides a charging box, which includes a first processor 11, an earphone box I/O control module 12, and a first I/O interface;
  • the first processor 11 is configured to execute a computer program to implement the steps of the method for communicating between the wireless headset and the charging box as described above.
  • FIG. 3 Please refer to FIG. 3 for the structure of the charging box provided by the present invention.
  • the present invention also provides a TWS headset, including a second processor 21, a headset I/O control module 22, a second I/O interface, and a third I/O interface shorted to the second I/O interface;
  • the second processor 21 is configured to execute a computer program to implement the steps of the method for communicating between the wireless headset and the charging box as described above. Please refer to FIG. 3 for the structure of the TWS headset provided by the present invention.
  • the TWS headset includes a master headset and a slave headset.
  • the master headset and/or slave headset includes a second processor 21, a headset I/O control module 22, a second I/O interface, and a second I/O interface.
  • the present invention also provides a TWS earphone system, including the above-mentioned charging box and the above-mentioned TWS earphone.
  • TWS earphone and TWS earphone system provided by the present invention, please refer to the foregoing method embodiments, and the present invention will not be repeated here.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
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  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

本发明公开了一种无线耳机和充电盒通信的方法，该方法中，通过充电盒的开关盒状态，能够实现对第一I/O接口的工作属性的设置。具体地，当充电盒开盒时，先将第一I/O接口的工作属性设置为通信接口，在和无线耳机通信前，先发送预设协商信号至无线耳机，只有在接收到无线耳机回复的与预设协商信号对应的协商确认信号后，再进入与无线耳机通信的模式。可见，本申请中，在充电盒和无线耳机通信前增加了交互确认机制，提高了充电盒和无线耳机的通信可靠性。本发明还公开了一种充电盒、TWS耳机及***，具有与上述无线耳机和充电盒通信的方法相同的有益效果。

Description

无线耳机与充电盒通信的方法、充电盒、TWS耳机及***
本申请要求于2019年10月31日提交中国专利局、申请号201911055264.6、申请名称为“无线耳机与充电盒通信的方法、充电盒、TWS耳机及***”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及耳机通信技术领域，特别是涉及一种无线耳机与充电盒通信的方法、充电盒、TWS耳机及***。
背景技术
无线耳机以其无线、轻巧的优点被广泛的应用。TWS耳机由于存在电池容量小、待机时间短的问题，一般会搭配充电盒一起使用。为了尽可能地减小耳机盒和无线耳机之间的接触接口，现有技术中存在将耳机盒和无线耳机的充电接口和通信接口复用的方案，但在耳机盒和无线耳机的接触接口复用为通信接口时，存在通信可靠性低的问题。
发明内容
本发明的目的是提供一种无线耳机与充电盒通信的方法、充电盒、TWS耳机及***，在充电盒和无线耳机通信前增加了交互确认机制，提高了充电盒和无线耳机的通信可靠性。
为解决上述技术问题，本发明提供了一种无线耳机与充电盒通信的方法，所述充电盒包括第一处理器、耳机盒I/O控制模块及第一I/O接口，该方法应用于所述第一处理器，包括：
在接收到开盒信号后控制所述耳机盒I/O控制模块将所述第一I/O接口的工作属性设置为通信接口；
通过所述第一I/O接口发送预设协商信号至无线耳机；
判断是否通过所述第一I/O接口接收到所述无线耳机回复的与预设协商信号对应的协商确认信号，如果是，进入与所述无线耳机通信的模式。
优选地，通过所述第一I/O接口发送预设协商信号至无线耳机之前，还包括：
通过所述第一I/O接口发送中断触发信号至所述无线耳机，以便所述无线耳机接收到所述中断触发信号后关闭中断直至回复完所述协商确认信号。
优选地，进入与所述无线耳机通信的模式之后，还包括：
在接收到关盒信号后通过所述第一I/O接口发送关盒消息至所述无线耳机，以便所述无线耳机在接收到所述关盒消息后进入充电模式；
控制所述耳机盒I/O控制模块将所述第一I/O接口的工作属性设置为充电接口，以进入为所述无线耳机充电的模式。
优选地，通过所述第一I/O接口发送预设协商信号至无线耳机之前，还包括：
将所述第一处理器中与所述无线耳机通信的接口由TX端口配置为GPIO接口；
则进入与所述无线耳机的通信模式之前，还包括：
将所述第一处理器中与所述无线耳机通信的接口由所述GPIO接口配置为所述TX端口。
为解决上述技术问题，本发明还提供了一种无线耳机与充电盒通信的方法，所述无线耳机包括第二处理器、耳机I/O控制模块、第二I/O接口及与所述第二I/O接口短接的第三I/O接口，该方法应用于所述第二处理器，包括：
通过所述第三I/O接口获取所述充电盒的第一I/O接口输出的预设协商信号；
判断所述预设协商信号是否满足预设协商要求；
如果是，通过所述第三I/O接口回复与预设协商信号对应的协商确认信号，并在回复完后控制所述耳机I/O控制模块将所述第二I/O接口的工作属性设置为通信接口，以进入与所述充电盒通信的模式。
优选地，通过所述第三I/O接口获取所述充电盒的第一I/O接口输出的预设协商信号之前，还包括：
通过所述第三I/O接口接收所述充电盒发送的中断触发信号；
关闭中断直至回复完所述协商确认信号。
优选地，进入与所述充电盒通信的模式之后，还包括：
通过所述第二I/O接口接收所述充电盒发送的关盒消息；
控制所述耳机I/O控制模块将所述第二I/O接口的工作属性设置为充电接口，以进入充电模式。
为解决上述技术问题，本发明还提供了一种充电盒，所述充电盒包括第一处理器、耳机盒I/O控制模块及第一I/O接口；
所述第一处理器，用于执行计算机程序以实现如上述所述无线耳机与充电盒通信的方法的步骤。
为解决上述技术问题，本发明还提供了一种TWS耳机，包括第二处理器、耳机I/O控制模块、第二I/O接口及与所述第二I/O接口短接的第三I/O接口；
所述第二处理器，用于执行计算机程序以实现如上述所述无线耳机与充电盒通信的方法的步骤。
为解决上述技术问题，本发明还提供了一种TWS耳机***，包括如上述所述的充电盒和如上述所述的TWS耳机。
本发明提供了一种无线耳机和充电盒通信的方法，该方法中，通过充电盒的开关盒状态，能够实现对第一I/O接口的工作属性的设置。具体地，当充电盒开盒时，先将第一I/O接口的工作属性设置为通信接口，在和无线耳机通信前，先发送预设协商信号至无线耳机，只有在接收到无线耳机回复的与预设协商信号对应的协商确认信号后，再进入与无线耳机通信的模式。可见，本申请中，在充电盒和无线耳机通信前增加了交互确认机制，提高了充电盒和无线耳机的通信可靠性。
本发明还提供了一种充电盒、TWS耳机及***，具有与上述无线耳机和充电盒通信的方法相同的有益效果。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对现有技术和实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明提供的一种无线耳机与充电盒通信的方法的过程流程图；
图2为本发明提供的另一种无线耳机与充电盒通信的方法的过程流程图；
图3为本发明提供的一种TWS耳机***的结构示意图。
具体实施方式
本发明的核心是提供一种无线耳机与充电盒通信的方法、充电盒、TWS耳机及***，在充电盒和无线耳机通信前增加了交互确认机制，提高了充电盒和无线耳机的通信可靠性。
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请参照图1，图1为本发明提供的一种无线耳机与充电盒通信的方法的过程流程图。
充电盒包括第一处理器、耳机盒I/O控制模块及第一I/O接口，该方法应用于第一处理器，该方法包括：
S11：在接收到开盒信号后控制耳机盒I/O控制模块将第一I/O接口的工作属性设置为通信接口；
S12：通过第一I/O接口发送预设协商信号至无线耳机；
S13：判断是否通过第一I/O接口接收到无线耳机回复的与预设协商信号对应的协商确认信号，如果是，进入S14；
S14：进入与无线耳机通信的模式。
首先需要说明的是，本申请中，无线耳机中主耳机与充电盒通信的方法与无线耳机中从耳机与充电盒通信的方法是相同的，因此，上述步骤中的无线耳机可以为无线耳机中的主耳机，也可以为无线耳机中的从耳机。
具体地，本申请中，充电盒包括开盒和关盒两个动作，在开盒时，说明用户需要使用无线耳机，充电盒与无线耳机之间要进行通信；在关盒时，说明无线耳机需要充电，充电盒要为无线耳机进行充电。为实现一个接口的充电及通信的复用，第一I/O接口的工作属性包括通信接口和充电接口两种。当第一I/O接口的工作属性被设置为通信接口时，第一处理器通过第一I/O接口与无线耳机通信；当第一I/O接口的工作属性被设置为充电接口时，充电盒中的耳机盒充电模块通过第一I/O接口为无线耳机充电。
为实现上述功能，耳机盒I/O控制模块除了与第一I/O接口连接，还分别与第一处理器和耳机盒充电模块连接，基于第一处理器的控制，耳机盒I/O控制模块将第一I/O接口可选地与第一处理器或耳机盒充电模块连接。耳机盒I/O控制模块的本质为可控单刀双掷开关，第一处理器可以通过高低电平来对耳机盒I/O控制模块进行控制，例如，耳机盒I/O控制模块在接收到高电平时，第一I/O接口与耳机盒充电模块连接；耳机盒I/O控制模块在接收到低电平时，第一I/O接口与第一处理器连接。本申请对于耳机盒I/O控制模块的具体实现及控制不作特别的限定，根据实际情况来定。此外，耳机盒充电模块可以外接电源，并通过USB的VBUS接口对充电盒中的电池充电，同时通过VBUS给无线耳机充电；充电盒中的电池还可以通过耳机盒充电模块给无线耳机充电。
具体地，第一处理器在接收到开盒信号后控制耳机盒I/O控制模块将第一I/O接口的工作属性设置为通信接口，也即耳机盒I/O控制模块控制第一I/O接口与第一处理器连接，然后，第一处理器不直接与无线耳机进行通信，而是通过第一I/O接口发送预设协商信号至无线耳机，之后转为监听状态，无线耳机如果接收到预设协商信号，则会在接收到预设协商信号后，按照预先设定的协议向充电盒返回一个与预设协商信号对应的协商确认信号，充电盒如果接收到该协商确认信号，则说明充电盒与无线耳机之间通信可靠，且充电盒与无线耳机均做好了通信准备，后续，充电盒便可与无线耳机进行通信。充电盒与无线耳机通信可以实现强制蓝牙配对、耳机电量查询、开关盒动作通知、OTA升级触发等。
此外，本申请中可以将预设协商信号设定为第一数目的方波信号，将协商确认信号设定为第二数目的方波信号，其中，第一数目可以但不仅限为4，第二数据可以但不仅限为5，则充电盒通过第一I/O接口发送向无线耳机发送4个方波信号，无线耳机可以通过检测输 入的上升沿和/或下降沿来采集方波信号，在接收到4个方波信号后返回5个方波信号，充电盒也通过检测上升沿和/或下降沿获取方波信号，在接收到5个方波信号后进入与无线耳机通信的模式。本申请对于预设协商信号和协商确认信号中的方波信号的占空比、数量不作限定，根据实际情况来定。当然，这里的预设协商信号还可以为其他类型的信号，能实现本申请的目的即可。在实际应用中，第一处理器与耳机盒I/O控制模块之间还设置有单串口电路，用于基于半双工通信模式实现第一处理器与耳机盒I/O控制模块之间的通信。
综上，本发明提供的一种无线耳机和充电盒通信的方法，在充电盒和无线耳机通信前增加了交互确认机制，提高了充电盒和无线耳机的通信可靠性。
在上述实施例的基础上：
作为一种优选地实施例，通过第一I/O接口发送预设协商信号至无线耳机之前，还包括：
通过第一I/O接口发送中断触发信号至无线耳机，以便无线耳机接收到中断触发信号后关闭中断直至回复完协商确认信号。
具体地，为了提高协商确认过程的稳定性和可靠性，本实施例中，第一处理器在通过第一I/O接口发送预设协商信号至无线耳机之前，还通过第一I/O接口发送中断触发信号至无线耳机，无线耳机在接收到中断触发信号之后关闭中断，并等待充电盒发送的预设协商信号，且在接收到预设协商信号后回复协商确认信号，当回复完协商确认信号后打开中断。
在实际应用中，考虑到充电盒在为无线耳机充电时，第一I/O接口的输出为高电平，因此，为实现充电向通信的转换，可以将低电平设置为中断触发信号。
可见，通过该种方式，无线耳机仅将关闭中断后获取到的信息作为预设协商信号，确保了获取的预设协商信号的准确性，提高了协商确认过程的稳定性和可靠性。
作为一种优选地实施例，进入与无线耳机通信的模式之后，还包括：
在接收到关盒信号后通过第一I/O接口发送关盒消息至无线耳机，以便无线耳机在接收到关盒消息后进入充电模式；
控制耳机盒I/O控制模块将第一I/O接口的工作属性设置为充电接口，以进入为无线耳机充电的模式。
具体地，上述实施例提到，如果充电盒关盒，则说明此时无线耳机需要充电。第一处理器在接收到关盒信号后先通过第一I/O接口发送关盒消息至无线耳机，以便无线耳机在接收到关盒消息后进入充电模式，然后，第一处理器控制耳机盒I/O控制模块将第一I/O接口的工作属性设置为充电接口，此时耳机盒I/O控制模块控制第一I/O接口与耳机盒充电模块连接，耳机盒充电模块通过第一I/O接口为无线耳机充电，进入为无线耳机充电的模式。可见，本实施例实现了对通信至充电的自动切换，自动化程度高。
作为一种优选地实施例，通过第一I/O接口发送预设协商信号至无线耳机之前，还包括：
将第一处理器中与无线耳机通信的接口由TX端口配置为GPIO(General-purpose input/output)，通用型之输入输出)接口；
则进入与无线耳机的通信模式之前，还包括：
将第一处理器中与无线耳机通信的接口由GPIO接口配置为TX端口。
具体地，考虑到一般无线耳机中的主控芯片(例如下述实施例中提到的第二处理器)上的A/D(Analog to Digital，模式量/数字量)接口较少，且一般这些A/D接口通常用于连接无线耳机上的传感器，空闲的A/D接口几乎没有，因此，如果充电盒通过TX端口发送预设协商信号(例如电压值)，则无线耳机需要根据A/D转换后的电压值去判断是否返回相应地协商确认信号，如果此时无线耳机中的主控芯片上的A/D接口不够的话，则可能需要额外在无线耳机中设置AD转换器，从而增大了无线耳机的体积，提升了成本。此外，还考虑到充电盒中基于TX/RX的通信软件已经基本固定了，如果在此基础上再加入基于TX/RX的协商软件以实现交互协商，则需要对基于TX/RX的通信软件进行改动，为后续移植基于TX/RX的通信软件带来不便。
为了解决上述技术问题，本申请考虑到无线耳机中的主控芯片上的GPIO接口较多，且GPIO接口是传输高低电平，不占用主控芯片上的AD接口，也不需要额外设置AD转换器，此外，采用GPIO接口还不需要对基于TX/RX的通信软件进行更改，只需预先在第一处理器中设置基于GPIO的协商软件及相应地硬件。后续在通过第一I/O接口发送预设协商信号至无线耳机之前，第一处理器会将基于GPIO的协商软件配合相应地硬件控制将第一处理器中与无线耳机通信的接口由TX端口配置为GPIO接口，以便第一处理器输出由高低电平构成的预设协商信号，在协商确认后，进入与无线耳机的通信模式之前，再将上述接口由GPIO接口配置为TX端口，从而保证不对后续充电盒与无线耳机之间的通信造成影响。
可见，在协商前，第一处理器通过GPIO接口输出由高低电平构成的预设协商信号，无线耳机中的第二处理器(下述实施例有提到)通过第三I/O接口(请参照下述实施例)接收由高低电平构成的预设协商信号，并直接根据高低电平构成的预设协商信号判断是否要回复相应地协商确认信号，该种方式不占用主控芯片上的AD接口，也不需要额外设置AD转换器，仅占用第二处理器上通常多余的GPIO接口，减小了对无线耳机的空间占用，降低了成本；此外，不需要对充电盒中的基于TX/RX的通信软件进行改动，方便后续对基于TX/RX的通信软件的移植。在协商确认后，第一处理器仍通过TX接口、RX接口与无线耳机通信，不影响充电盒与无线耳机之间的正常通信。
请参照图2，图2为本发明提供的另一种无线耳机与充电盒通信的方法的过程流程图。
无线耳机包括第二处理器、耳机I/O控制模块、第二I/O接口及与第二I/O接口短接的第三I/O接口，该方法应用于第二处理器，包括：
S21：通过第三I/O接口获取充电盒的第一I/O接口输出的预设协商信号；
S22：判断预设协商信号是否满足预设协商要求，如果是，进入S23；
S23：通过第三I/O接口回复与预设协商信号对应的协商确认信号，并在回复完后控制耳机I/O控制模块将第二I/O接口的工作属性设置为通信接口，以进入与充电盒通信的模式。
需要说明的是，无线耳机中除了包括用于充电和通信复用的第二I/O接口外，还包括与第二I/O接口短接的第三I/O接口，第三I/O接口的作用主要用于在第二I/O接口的工作属性还未由充电接口转换为通信接口之前，接收充电盒通过第一I/O接口发送的预设协商信号及下述实施例提到的中断触发信号，以便第二处理器在判定预设协商信号满足预设协商要求后再将第二I/O接口的工作属性由充电接口转换为通信接口。
第二I/O接口的工作属性包括通信接口和充电接口两种。当第二I/O接口的工作属性被设置为通信接口时，第二处理器通过第二I/O接口与充电盒通信；当第二I/O接口的工作属性设置为充电接口时，充电盒通过第二I/O接口为无线耳机充电。
为实现上述功能，耳机I/O控制模块除了与第二I/O接口连接，还分别与第二处理器和耳机充电模块连接，基于第二处理器的控制，耳机I/O控制模块将第二I/O接口可选地与第二处理器或耳机充电模块连接。耳机I/O控制模块的本质为可控单刀双掷开关，第二处理器可以通过高低电平来对耳机I/O控制模块进行控制。例如，耳机I/O控制模块在接收到高电平时，第二I/O接口与耳机充电模块连接；耳机I/O控制模块在接收到低电平时，第二I/O接口与第二处理器连接。本申请对于耳机I/O控制模块的具体实现及控制不作特别的限定，根据实际情况来定。充电盒中的VBUS可以通过耳机充电模块为无线耳机中的电池充电。
在实际应用中，第二处理器与耳机I/O控制模块之间还设置有单串口电路，用于基于半双工通信模式实现第二处理器与耳机I/O控制模块之间的通信。
作为一种优选地实施例，通过第三I/O接口获取所述充电盒的第一I/O接口输出的预设协商信号之前，还包括：
通过第三I/O接口接收充电盒发送的中断触发信号；
关闭中断直至回复完协商确认信号。
作为一种优选地实施例，进入与充电盒通信的模式之后，还包括：
通过第二I/O接口接收充电盒发送的关盒消息；
控制耳机I/O控制模块将第二I/O接口的工作属性设置为充电接口，以进入充电模式。
具体地，上述实施例提到，如果第二处理器接收到充电盒发送的关盒消息，则说明此时无线耳机需要充电。第二处理器在接收到关盒消息后会通过耳机I/O控制模块将第二I/O接口的工作属性设置为充电接口，此时耳机I/O控制模块控制第二I/O接口与耳机充电模块连接，充电盒便可通过第二I/O接口为无线耳机充电。可见，本实施例实现了对通信至充电的自动切换，自动化程度高。
作为一种优选地实施例，第三I/O接口为GPIO接口。
本实施例中，第三I/O接口用于接收由高低电平构成的预设协商信号。
上述站在充电盒的角度已经对无线耳机与充电盒通信的方法做了充分的介绍，对于本发明提供的站在无线耳机角度的无线耳机与充电盒通信的方法的介绍请参照上述方式实施例，本发明在此不再赘述。
请参照图3，图3为本发明提供的一种TWS耳机***的结构示意图。
本发明还提供了一种充电盒，充电盒包括第一处理器11、耳机盒I/O控制模块12及第一I/O接口；
第一处理器11，用于执行计算机程序以实现如上述无线耳机与充电盒通信的方法的步骤。
本发明提供的充电盒的结构请参照图3。
本发明还提供了一种TWS耳机，包括第二处理器21、耳机I/O控制模块22、第二I/O接口及与第二I/O接口短接的第三I/O接口；
第二处理器21，用于执行计算机程序以实现如上述无线耳机与充电盒通信的方法的步骤。对于本发明提供的TWS耳机的结构请参照图3。
需要说明的是，TWS耳机包括主耳机和从耳机，主耳机和/或从耳机包括第二处理器21、耳机I/O控制模块22、第二I/O接口及与第二I/O接口短接的第三I/O接口及第二处理器。
本发明还提供了一种TWS耳机***，包括如上述的充电盒和如上述的TWS耳机。
对于本发明提供的充电盒、TWS耳机及TWS耳机***的介绍请参照上述方法实施例，本发明在此不再赘述。
需要说明的是，在本说明书中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那 些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下，在其他实施例中实现。因此，本发明将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。

Claims (10)

  1. 一种无线耳机与充电盒通信的方法，其特征在于，所述充电盒包括第一处理器、耳机盒I/O控制模块及第一I/O接口，该方法应用于所述第一处理器，包括：
    在接收到开盒信号后控制所述耳机盒I/O控制模块将所述第一I/O接口的工作属性设置为通信接口；
    通过所述第一I/O接口发送预设协商信号至无线耳机；
    判断是否通过所述第一I/O接口接收到所述无线耳机回复的与预设协商信号对应的协商确认信号，如果是，进入与所述无线耳机通信的模式。
  2. 如权利要求1所述的无线耳机与充电盒通信的方法，其特征在于，通过所述第一I/O接口发送预设协商信号至无线耳机之前，还包括：
    通过所述第一I/O接口发送中断触发信号至所述无线耳机，以便所述无线耳机接收到所述中断触发信号后关闭中断直至回复完所述协商确认信号。
  3. 如权利要求1所述的无线耳机与充电盒通信的方法，其特征在于，进入与所述无线耳机通信的模式之后，还包括：
    在接收到关盒信号后通过所述第一I/O接口发送关盒消息至所述无线耳机，以便所述无线耳机在接收到所述关盒消息后进入充电模式；
    控制所述耳机盒I/O控制模块将所述第一I/O接口的工作属性设置为充电接口，以进入为所述无线耳机充电的模式。
  4. 如权利要求1至3任一项所述的无线耳机与充电盒通信的方法，其特征在于，通过所述第一I/O接口发送预设协商信号至无线耳机之前，还包括：
    将所述第一处理器中与所述无线耳机通信的接口由TX端口配置为GPIO接口；
    则进入与所述无线耳机的通信模式之前，还包括：
    将所述第一处理器中与所述无线耳机通信的接口由所述GPIO接口配置为所述TX端口。
  5. 一种无线耳机与充电盒通信的方法，其特征在于，所述无线耳机包括第二处理器、耳机I/O控制模块、第二I/O接口及与所述第二I/O接口短接的第三I/O接口，该方法应用于所述第二处理器，包括：
    通过所述第三I/O接口获取所述充电盒的第一I/O接口输出的预设协商信号；
    判断所述预设协商信号是否满足预设协商要求；
    如果是，通过所述第三I/O接口回复与预设协商信号对应的协商确认信号，并在回复完后控制所述耳机I/O控制模块将所述第二I/O接口的工作属性设置为通信接口，以进入与所述充电盒通信的模式。
  6. 如权利要求5所述的无线耳机与充电盒通信的方法，其特征在于，通过所述第三I/O接口获取所述充电盒的第一I/O接口输出的预设协商信号之前，还包括：
    通过所述第三I/O接口接收所述充电盒发送的中断触发信号；
    关闭中断直至回复完所述协商确认信号。
  7. 如权利要求6所述的无线耳机与充电盒通信的方法，其特征在于，进入与所述充电盒通信的模式之后，还包括：
    通过所述第二I/O接口接收所述充电盒发送的关盒消息；
    控制所述耳机I/O控制模块将所述第二I/O接口的工作属性设置为充电接口，以进入充电模式。
  8. 一种充电盒，其特征在于，所述充电盒包括第一处理器、耳机盒I/O控制模块及第一I/O接口；
    所述第一处理器，用于执行计算机程序以实现如权利要求1至4任一项所述无线耳机与充电盒通信的方法的步骤。
  9. 一种TWS耳机，其特征在于，包括第二处理器、耳机I/O控制模块、第二I/O接口及与所述第二I/O接口短接的第三I/O接口；
    所述第二处理器，用于执行计算机程序以实现如权利要求5至7任一项所述无线耳机与充电盒通信的方法的步骤。
  10. 一种TWS耳机***，其特征在于，包括如权利要求8所述的充电盒和如权利要求9所述的TWS耳机。
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