WO2020248354A1 - 一种蓝牙控制装置和方法 - Google Patents

一种蓝牙控制装置和方法 Download PDF

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Publication number
WO2020248354A1
WO2020248354A1 PCT/CN2019/100061 CN2019100061W WO2020248354A1 WO 2020248354 A1 WO2020248354 A1 WO 2020248354A1 CN 2019100061 W CN2019100061 W CN 2019100061W WO 2020248354 A1 WO2020248354 A1 WO 2020248354A1
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WO
WIPO (PCT)
Prior art keywords
bluetooth
control device
control
smart phone
volume
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PCT/CN2019/100061
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English (en)
French (fr)
Inventor
曾德钧
Original Assignee
深圳市云动创想科技有限公司
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Publication of WO2020248354A1 publication Critical patent/WO2020248354A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/72Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/725Cordless telephones
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/10Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/10Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1041Mechanical or electronic switches, or control elements

Definitions

  • the present invention relates to electronic technology, and more specifically, to a portable Bluetooth control device and method for controlling audio playback of Bluetooth headsets or other Bluetooth audio equipment or answering calls through a smart terminal.
  • the Bluetooth headset After the Bluetooth headset is connected to the smart phone, the Bluetooth headset can be used to make calls or play audio.
  • the volume control of the Bluetooth headset is generally realized through the button on the smart phone or the APP for playing audio; when the Bluetooth headset is equipped with Bluetooth
  • the existing Bluetooth control device only has multimedia control functions: play/pause, up and down music, volume, etc., but when used on a phone, it cannot be answered, hanged up, rejected and dialed back Features.
  • the disadvantage of the above-mentioned prior art is that the existing Bluetooth control device only has a multimedia control function, and the operation of the telephone can only be performed on the mobile phone, which is inconvenient in the use process.
  • the Bluetooth control device of the present invention when a smart phone uses a Bluetooth headset or a Bluetooth music device, there is an incoming call without operating the smart phone or the Bluetooth device, which can be controlled simply and conveniently.
  • a Bluetooth control method is constructed to transmit the control commands generated by the human-computer interaction acting on the Bluetooth control device to the Bluetooth through the smart phone between the Bluetooth control device, the smart phone and the Bluetooth headset.
  • Headphones including the following steps:
  • the dual-mode Bluetooth chip of the Bluetooth control device establishes a Bluetooth connection with the smart phone through the Bluetooth protocol HFP;
  • the smart phone connected to the Bluetooth headset is in a call state, and the control command generated by the Bluetooth control device is directly transmitted to the call module in the smart phone to execute the Bluetooth headset;
  • the smart phone connected to the Bluetooth headset is in the audio playback state, and the control command generated by the Bluetooth control device is directly transmitted to the Bluetooth headset for execution by the smart phone through the Bluetooth HID or BLE HID protocol.
  • the control commands generated by the Bluetooth control device include answering, hanging up, rejecting and dialing a call; in the step S4, the Bluetooth control device generates
  • the control commands include volume, play/pause, change music, and switch channels.
  • the Bluetooth control device does not use the SCO link when connecting with the smart phone through the Bluetooth protocol HFP; the Bluetooth control device prohibits the A2DP protocol through the protocol stack setting.
  • a Bluetooth control device includes a Bluetooth master chip and a human-computer interaction device connected to the Bluetooth master chip.
  • the Bluetooth master chip includes a Bluetooth master chip that responds to the human-machine switching device to perform the above The procedure of the described method.
  • the human-computer interaction device includes a volume rotary encoder (S2) with a push button and a resettable rotary switch with a push button (S3).
  • the Bluetooth control device of the present invention includes a housing, a built-in circuit board and a battery.
  • the Bluetooth main control chip is mounted on the circuit board, and the circuit board is equipped with an electrical connection with the Bluetooth main control chip (U1).
  • the volume rotary encoder with push button (S2) and the resettable rotary switch (S3) with push button are connected, and the casing is equipped with a volume knob connected with the rotary shaft of the volume rotary encoder and connected with push button The channel knob that can reset the rotary switch shaft.
  • the Bluetooth main control chip (U1) includes an integrated circuit with a model of AC6926, and a light emitting diode for indicating the Bluetooth connection status or charging status is provided on the circuit board.
  • the channel knob includes a central light guide part, a peripheral semi-transparent decorative layer, and a light barrier layer between the light guide part and the peripheral semi-transparent device layer.
  • the Bluetooth control device of the present invention further includes a charging port and a charging circuit installed on the circuit board, the charging circuit (U2) is connected to the built-in battery and the charging port, and the housing also includes a microphone, The microphone is electrically connected with the Bluetooth chip.
  • the Bluetooth control device of the existing audio playback equipment can only control audio playback but cannot control mobile phone calls. By analyzing and choosing Bluetooth related protocols, it does not affect music playback and In the case of call voice, it realizes the multimedia playback control of the Bluetooth headset or the player, and can also control the call.
  • the Bluetooth control device of the present invention realizes functions through HFP and HID protocols: Bluetooth headsets, multimedia control of Bluetooth music equipment: volume, playback, music changing, channel switching and other functions, telephone functions: answering, rejecting, calling back and other functions.
  • the volume knob 40 and the channel knob 50 can be shafted to the volume rotary encoder with pressing key and the resettable rotary switch of the pressing key by screws, various audio frequencies can be conveniently realized.
  • Play function control and call control; the present invention uses a channel knob with a light-transmitting and light-isolating structure, which can make the light reflecting the Bluetooth connection status and charging status flash out according to the required light-transmitting gap, which improves the aesthetic taste of the product.
  • the present invention is provided with a charging circuit and a charging port, so that the Bluetooth control device can be used for a long time without changing the battery;
  • the inner wall of the two ends of the housing of the present invention is provided with magnets, which is convenient to be inserted into the corresponding charging device smoothly and reliably;
  • a microphone is electrically connected with the Bluetooth chip for voice wake-up remote control and voice recognition remote control commands.
  • the shell of the present invention is also provided with a hook device on the end surface close to the volume knob, which can be used to tie a rope to facilitate hanging and play, and the lower shell surface of the shell is provided with a back clamp device, which is convenient for fixing the remote control on other objects, using and carrying methods Flexible and diverse.
  • the volume knob controls a volume rotary encoder with a pressing button, which can be rotated 360 degrees, when it is turned clockwise, the volume increases, when it is turned counterclockwise, the volume decreases, and when pressed briefly, the pause/play function is activated Key function, if long press to wake up the microphone; when the call is connected to the smart phone, the smart phone will ring/vibrate, at this time, short press once to control the Bluetooth headset to answer the call, press again after answering to hang up; When accessing, long press once to reject the call.
  • you can press and hold the volume knob for 3 seconds during a call. The machine can be muted, but the voice of the other party can be heard. Long press again to unmute the call.
  • the channel knob of the present invention can control a resettable rotary switch with a push button, which can be rotated clockwise or counterclockwise.
  • its function can be defined as follows. Rotate clockwise once and rebound. The operation is to select the next one. Channel; rotate clockwise twice and rebound, its operation is the next song in the channel; rotate clockwise to keep it without rebound, its operation is fast forward; rotate counterclockwise once and rebound, its operation is to select the previous channel; Rotate counterclockwise twice and bounce back, its operation is the previous song in the channel; rotate clockwise to keep it without bounce, its operation is fast rewind; rotate clockwise twice and bounce back, the next song in other music apps, counterclockwise Rotate twice and bounce back, and its operation is the previous song of other music apps; short press the middle button of the knob twice to turn up the camera function, which can support many photo and video software; short press the middle button 3 times to lock the screen.
  • the Bluetooth control device of the present invention is more convenient to use and has more comprehensive functions.
  • Figure 1 is a schematic diagram of the connection with a smart phone and a Bluetooth headset in an embodiment of a Bluetooth control device of the present invention
  • FIG. 2 is a logical block diagram of the Bluetooth master chip in the Bluetooth control device embodiment of the present invention.
  • FIGS. 3-9 are schematic diagrams of circuit principles constituting embodiments of the Bluetooth control device of the present invention.
  • Fig. 10 is a schematic structural diagram of an embodiment of an inventive Bluetooth control device
  • Figure 11 is a schematic structural cross-sectional view of an embodiment of a Bluetooth control device of the invention.
  • Fig. 12 is a schematic structural exploded view of an embodiment of the inventive Bluetooth control device
  • Figure 13 is a structural diagram of a channel knob in an embodiment of a Bluetooth control device of the invention.
  • Fig. 14 is a schematic diagram illustrating the working flow of the Bluetooth control device of the present invention.
  • the Bluetooth control device of the present invention in FIG. 1, it includes a Bluetooth control device 100, a smart phone 200 and a Bluetooth headset 300.
  • the Bluetooth control device 100 of the present invention can be connected to the smart phone 200 in Bluetooth.
  • the Bluetooth control device 100 of the present invention uses a dual-mode Bluetooth master chip, which can be cleverly controlled by the existing protocol without affecting voice or music; the smart phone 200, its call status and multimedia playback status can be directly controlled by the outside;
  • the Bluetooth headset 300 (wireless, wired) can also be any other model of TWS headset, or other Bluetooth communication music devices and can be connected to the smart phone 200 via Bluetooth.
  • the bluetooth control device of the present invention belongs to a kind of information HID (Human Interface The abbreviation of Devices) device.
  • This device usually refers to a device that directly interacts with a person, such as a mouse, keyboard, etc., which usually interact through a USB interface.
  • the present invention utilizes the cooperation of this device and smart phone to convert people through knobs or buttons or other touch operations into control commands that can be recognized by the smart phone system to control Bluetooth headsets or other Bluetooth audio playback terminals to achieve multimedia playback function control And the purpose of phone operations.
  • a human-computer interaction device a device that accepts human-computer interaction is called a human-computer interaction device, which is not shown in FIG. 1.
  • the Bluetooth control device 100 of the present invention can control the implementation of the mobile phone call function and multimedia playback function on the Bluetooth headset 300 through the smart phone 200, that is, let the Bluetooth headset 300 execute Various control commands issued by the Bluetooth control device 100.
  • the Bluetooth control device 100 will not intercept the audio signals and call voices of the smart phone 200 and the Bluetooth headset 300 (or other Bluetooth music devices). It only has the control function and will only be used to interact with the Bluetooth control device.
  • the control commands are sent to the Bluetooth headset for execution.
  • the Bluetooth control device 100 of the present invention obtains human control instructions or commands through a human-computer interaction device.
  • the Bluetooth control device provided by the present invention can be expressed as a human-computer interaction device that accepts human control instructions or commands, and a Bluetooth master chip connected and controlled by the human-computer interaction device.
  • the Bluetooth master chip can The instructions or commands from the human-computer interaction device are transmitted to the smart phone 200 in a Bluetooth transmission mode according to a protocol, and the Bluetooth headset 300 is made to perform corresponding actions through the smart phone 200.
  • the Bluetooth master chip used includes a bus AHB and a peripheral bus APB for connecting peripheral devices to the core of the Bluetooth system through AHB2APB.
  • Core processor ARM-Cortex Bluetooth protocol related interface BT MAC PHY, as well as data storage devices SRAM, BOOT ROM, FLASH and DMA1
  • the peripheral bus APB has general control protocol interfaces I2C, SPI, GPIO and UART, and provides external clock data TIMER, data transmission interface PCM and PWM, test interface CMU, power supply interface GPADC, digital and analog signal conversion circuit CODEC, and abnormal reset timer WDT.
  • the human-computer interaction instructions or commands that need to be processed by the human-computer interaction device include four parts: 1. Related to volume control, for example, 1/5 volume, 2/5 volume, 3/5 Volume, volume 4/5, volume 5/5, such 5 levels of volume, can also be more and less levels, or stepless adjustment; 2) related to multimedia/audio playback, for example, playback, Pause; 3) related to the content of playing multimedia/audio, for example, previous song, next song, previous channel, next channel, etc.; 4) commands related to telephone functions, such as answer, hang up, reject Listen and call back etc.
  • volume control for example, 1/5 volume, 2/5 volume, 3/5 Volume, volume 4/5, volume 5/5, such 5 levels of volume, can also be more and less levels, or stepless adjustment
  • 2) related to multimedia/audio playback for example, playback, Pause
  • 3) related to the content of playing multimedia/audio for example, previous song, next song, previous channel, next channel, etc.
  • commands related to telephone functions such as answer, hang up, reject Listen and call back etc.
  • the control commands of the four parts in the above-mentioned embodiment can be processed by four human-computer interaction units respectively.
  • the human-computer interaction device is configured to include: 1) for providing volume Volume control unit for increasing and decreasing signals; 2) Play control unit for providing play/pause signal, content control unit for providing control signal of previous fetch, next song, previous channel, next channel, A telephone function control unit used to provide command signals for answering, hanging up, rejecting and dialing calls.
  • the volume control unit includes at least one button or code switch
  • the content control unit includes at least one button or code switch
  • the telephone function control unit includes at least one button or code switch
  • the playback control unit includes at least one button or code switch.
  • the mechanism that provides the volume control unit and the playback control unit includes a rotary encoder (S2) with a push button, as shown in Figure 8.
  • the mechanism that provides the content control unit and the telephone function control unit includes a resettable rotary switch (S3) with a push button, as shown in Figure 9.
  • the Bluetooth control device of the present invention includes a volume knob encoder S2 with a push button ( Figure 8) that is used to control the audio playback volume of the Bluetooth headset and other functions.
  • the battery charging control IC U2 ( Figure 6) is used to connect the Bluetooth main control chip U1 to the microphone MIC of the audio input ( Figure 3), and the LEDs D1-D3 ( Figure 3) used to display the Bluetooth connection status or charging status 7)
  • the Bluetooth master chip U1 ( Figure 3) can realize the Bluetooth connection with the smartphone 200 through the Bluetooth communication protocol; the volume rotary encoder S2 ( Figure 8) with a push button is used to control the audio playback volume of the Bluetooth headset connected to the smartphone.
  • Other functions specifically, when the encoder S2 is rotated counterclockwise/clockwise by the knob, a waveform with different phases will be generated on the EN1_A/EN1_B pins of the encoder S2, which will be sent to the smart terminal after being identified by the U1 main control program Volume increase/decrease instructions. Pressing S2 will generate a low level on the pin EN1_SW, after being identified by the U1 main control program, a control command will be issued.
  • S3 is a resettable rotary switch with a push button. When it is toggled for a short time, it will issue up/down song commands. After toggle, holding 2S will issue up/down channel commands/holding 3S will issue fast forward Rewind command.
  • its function is as follows: rotate clockwise once and bounce, its operation is to select the next channel; rotate clockwise twice and bounce, its operation is the next song in the channel; rotate clockwise to keep it without bounce, its operation The operation is fast forward; rotate counterclockwise once and rebound, its operation is to select a channel; rotate counterclockwise twice and rebound, its operation is the previous song in the channel; rotate clockwise to keep it without rebound, its operation is Fast rewind; rotate clockwise twice and rebound, other music APP next song, rotate counterclockwise 2 times and rebound, its operation is the previous song of other music APP; short press the middle button of the knob twice to bring up the camera function, Supports many camera and video software; short press the middle button 3 times to lock the screen.
  • a dual-mode Bluetooth chip is used.
  • This chip means that the chip includes two functions of traditional Bluetooth + Bluetooth low energy (LE).
  • This dual-mode Bluetooth chip can not only transmit audio signals, but also transmit control signals in a low-power consumption manner.
  • the above-mentioned HFP is a part of the traditional Bluetooth protocol, and commands such as play pause/up and down music are transmitted through BLE, so only dual-mode Bluetooth chips can be used.
  • the Bluetooth control device 100 of this embodiment includes a Bluetooth chip AC6926 ( Figure 3) and a charging chip WS4508E ( Figure 6), AC6926 can complete the main functions of the Bluetooth control device through programming, the model is AC6926 Bluetooth In the peripheral part of the chip, K1-K5 are function keys, and T1-T4 are encoder contact points (in this embodiment, the encoder contact point part is separately provided on a small board).
  • CY1 provides 24M clock for AC6926 to work.
  • R4/R5 constitute a battery power detection circuit ( Figure 4), used to detect the battery power and provide an alarm basis.
  • USB1 is MICRO Charging port with USB interface.
  • the DP/DM pin is used to upgrade the firmware of AC6926.
  • ANT1 is a patch type Bluetooth antenna, used to receive and transmit Bluetooth 2.4G signals ( Figure 3).
  • LEDs D2/D3/D4 can display Bluetooth connection status or battery charging status.
  • MK1 in the circuit diagram of Figure 2 is a microphone MIC, which is used to convert voice into electrical signals and input to the U1 chip for processing. For example, it can be used to wake up a Bluetooth control device or input and recognize voice commands.
  • J1 is a charging contact, and the built-in lithium battery 30 is charged through the charging integrated circuit U2.
  • the transistor Q3/Q4 is the power control part, Q3 is disconnected when charging, and does not supply power to the Bluetooth chip U1. When not charging, Q3 is turned on to provide power to the Bluetooth chip U1, and the Bluetooth chip U1 starts to work.
  • the Bluetooth control device 100 is connected to the smartphone 200 through the Bluetooth protocol supporting the HFP protocol, but does not use the SCO (abbreviation of Synchronous Connection Oriented) link.
  • the function of the SCO link is to transmit time-critical data communications, such as voice during a telephone call.
  • the SCO link is disabled to ensure that the Bluetooth control device 100 only sends control commands and does not allow intervening in the telephone call. Voice data.
  • the Bluetooth control device is only used for control and does not have a call function.
  • the Bluetooth control device 100 retains the function of the SCO link at the same time, the smart phone 200 or another Bluetooth device connected to the smart phone will be called The voice is transmitted to the Bluetooth control device 100, which causes the smart phone 200 or another Bluetooth device to fail to normally generate a speaking voice.
  • the Bluetooth control device 100 of the present invention since the adopted Bluetooth protocol supports the HFP protocol (HFP is Hands Free profile), the Bluetooth hands-free protocol, which belongs to a subset of the traditional Bluetooth protocol stack. It allows devices such as Bluetooth headset 300 to implement a remote audio input/output mechanism as an audio gateway and provide several remote control functions. As a result of the use of the Bluetooth protocol supporting the HFP protocol, it can provide the telephone function of controlling the mobile phone.
  • HFP Hands Free profile
  • the Bluetooth control device 100 prohibits the A2DP protocol.
  • the multimedia control of the Bluetooth headset 300 can be controlled by the Bluetooth control device 100 through the Bluetooth HID protocol.
  • the multimedia control of the Bluetooth headset 300 can also be controlled by the Bluetooth control device 100 through BLE HID protocol controls.
  • A2DP is the abbreviation of the full English name "Advanced Audio Distribution Profile", which is mainly used to transmit advanced audio signals such as music.
  • A2DP protocol It is also part of the Bluetooth protocol stack, prohibiting this protocol can be implemented by calling related macros in the program code.
  • the call control function of the Bluetooth control device on the mobile phone is achieved by the selection of the Bluetooth protocol, especially the protocol in the Bluetooth protocol stack.
  • the direct control of the call function of the mobile phone by the Bluetooth control device is the most important contribution of the present invention.
  • the housing 10 includes an upper housing 11 and a lower housing 12.
  • the circuit board 20 is installed between the upper housing 11 and the lower housing 12, and the housing 10 has A channel knob 50 with a larger diameter and a volume knob 40 with a smaller diameter.
  • the end surface of the housing 10 close to the volume knob 40 is provided with a hook device 81 for tether suspension, and the lower shell surface of the housing 10 is provided with a back clip device 82 for clamping the Bluetooth control device housing 10 on other objects.
  • This design Provides various and flexible ways to hold and carry the Bluetooth control device.
  • the inner walls of the lower shell 12 close to the two ends are respectively provided with a first magnet 71 and a second magnet 72 for smoothly absorbing the Bluetooth control device to the charging mechanism, so as to facilitate reliable adsorption of the Bluetooth control device to the charger.
  • the channel knob 50 includes a central light guide 51, a peripheral semi-transparent decorative layer 53, and a light barrier layer between the light guide 51 and the peripheral semi-transparent device layer 52. Since the circuit board 20 is provided with light-emitting diodes for indicating the Bluetooth connection status or charging status, the light generated by the light-emitting diodes can be emitted through the central light guide portion 51 surrounded by the light barrier 52, and can be on the end surface at this time. Set up the nameplate to let light emerge from the light gap formed between the nameplate and the end surface of the light guide, giving people a sense of beauty.
  • the program starts, scans the buttons, and detects whether there is a button pressed. If there is no button pressed, wait for 2 seconds to end. If there is a button pressed, judge whether to call If it is a phone call, send HFP, wait 2 seconds, and end; if it is not a phone call, perform HID/HOGP operation, send a Bluetooth command, wait 2 seconds, and end.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Telephone Function (AREA)

Abstract

本发明涉及一种蓝牙控制方法和装置,用于在蓝牙控制装置(100)、智能手机(200)以及蓝牙耳机(300)之间,将作用于蓝牙控制装置的人机交互产生的控制命令通过智能手机传送到蓝牙耳机,其中,智能手机分别与蓝牙控制装置和蓝牙耳机蓝牙连接,在通话状态时控制命令直接传送到智能手机的通话模块令蓝牙耳机执行,在音频播放状态时控制命令由智能手机通过蓝牙HID或BLE HID协议直接传送到蓝牙耳机执行。实施本发明提供的蓝牙控制方法和装置,针对现有蓝牙控制装置只能控制音频播放不能控制通话的缺陷,在不影响音乐播放和通话语音的情况下,实现对蓝牙耳机的播放控制,同时也能对通话进行控制。相比其它控制器使用更方便灵活,功能更全面。

Description

一种蓝牙控制装置和方法 技术领域
本发明涉及电子技术,更具体地说,涉及一种通过智能终端对蓝牙耳机或其他蓝牙音频设备进行音频播放或接听电话进行控制的便携式蓝牙控制装置和方法。
背景技术
蓝牙耳机与智能手机连接后,蓝牙耳机可以用来打电话或播放音频,此时,对蓝牙耳机的音量控制一般是通过智能手机上的按钮或播放音频的APP来实现;当给蓝牙耳机配备蓝牙控制装置时,播放音频时,现有蓝牙控制装置只具备多媒体控制功能:播放/暂停、上下曲、音量等功能,而在用于电话时,不能实现其接听、挂断、拒听和回拔功能。上述现有技术的不足在于:现有蓝牙控制装置只有多媒体控制功能,对于电话的操作,只能在手机上进行操作,在使用过程中不方便。应用本发明的蓝牙控制装置,在智能手机使用蓝牙耳机或蓝牙音乐设备的时候,有来电不需要操作智能手机或蓝牙设备即可简单方便的进行控制。
技术问题
本发明要解决的技术问题在于,提供一种蓝牙控制方法,可以克服现有技术不足,配合智能手机可以控制在蓝牙耳机上播放音频,也可以控制在蓝牙耳机上进行电话操作,从而在不操作智能手机和蓝牙耳机的前提下,实现音频播放控制和电话操作。本发明要解决的另一方面的问题是提供一种便于携带、便于操作、便于充电的蓝牙控制装置。
技术解决方案
本发明上述技术问题这样解决,构造一种蓝牙控制方法,用于在蓝牙控制装置、智能手机以及蓝牙耳机之间,将作用于蓝牙控制装置的人机交互产生的控制命令通过智能手机传送到蓝牙耳机,包括以下步骤:
S1) 蓝牙控制装置的双模蓝牙芯片通过蓝牙协议HFP与智能手机建立蓝牙连接;
S2)蓝牙耳机与智能手机建立蓝牙连接;
S3) 与蓝牙耳机连接的智能手机在通话状态,所述蓝牙控制装置产生的控制命令直接传送到智能手机中的通话模块令蓝牙耳机执行;
S4) 与蓝牙耳机连接的智能手机在音频重播状态,所述蓝牙控制装置产生的控制命令,由智能手机通过蓝牙HID或BLE HID协议直接传送到蓝牙耳机执行。
在本发明上述蓝牙控制方法中,所述蓝牙控制装置的程序启动后,执行以下步骤:
S1)扫描按键,检测有无按键按下;
S2)如在S1检测到无按键按下,等待1-3秒结束;
S3)如在S1检测到有按键按下,则判断是否通话;
S4)如在S3判断是电话通话,发送HFP,等待1-3秒,结束;
S5)如在S3判断不是电话通话,则进行HID/HOGP操作,发送蓝牙命令,等待2秒,结束。
在本发明上述蓝牙控制方法中,所述步骤S3中,所述蓝牙控制装置产生的控制命令包括接听、挂断、拒听和回拔电话;在所述步骤S4中,所述蓝牙控制装置产生的控制命令包括音量、播放/暂停、换曲、切换频道。
在本发明上述蓝牙控制方法中,在所述步骤S1中,蓝牙控制装置通过蓝牙协议HFP与智能手机连接时,不使用SCO链路;蓝牙控制装置通过协议栈设置禁止A2DP协议。
在按照本发明另一方面提供的一种蓝牙控制装置,包括蓝牙主控芯片以及与蓝牙主控芯片连接的人机交互装置,所述蓝牙主控芯片包括响应所述人机交换装置执行如上所述方法的程序。
在本发明上述蓝牙控制装置中,所述人机交互装置包括带按压键的音量旋转编码器(S2)和带按压键的可复位的旋转开关(S3)。
在本发明上述蓝牙控制装置中,包括外壳、内置的电路板和电池,所述蓝牙主控芯片装在所述电路板上,所述电路板上装有与所述蓝牙主控芯片(U1)电连接的所述带按压键的音量旋转编码器(S2)和带按压键的可复位的旋转开关(S3),所述外壳上装有连接所述音量旋转编码器转轴的音量旋钮及连接带按压键的可复位旋转开关转轴的频道旋钮。
在本发明上述蓝牙控制装置中,所述蓝牙主控芯片(U1)包括一个型号为AC6926的集成电路,所述电路板上设置有用于指示蓝牙连接状态或充电状态的发光二极管。
在本发明上述蓝牙控制装置中,所述频道旋钮包括中央导光部、外围半透装饰层以及居于导光部与外围半透装置层之间的隔光层。
在本发明上述蓝牙控制装置中,还包括充电端口以及装在所述电路板上充电电路,所述充电电路(U2)与所述内置电池和充电端口连接,所述外壳内还包括一个话筒,所述话筒与所述蓝牙芯片电连接。
有益效果
实施本发明提供的蓝牙控制方法和装置,针对现有音频播放设备的蓝牙控制装置只能控制音频播放不能控制手机通话的缺陷,通过分析蓝牙相关协议并对其进行取舍,在不影响音乐播放和通话语音的情况下,实现对蓝牙耳机或播放器的多媒体播放控制,同时也能对通话进行控制。本发明蓝牙控制装置通过HFP 和HID协议,实现功能:蓝牙耳机,蓝牙音乐设备的多媒体控制:音量,播放,换曲,切换频道等功能,电话功能:接听,拒听,回拔电话等功能。
在本发明提供的蓝牙控制装置中,由于可分别采用螺钉将音量旋钮40和频道旋钮50轴接到带按压键的音量旋转编码器和按压键的可复位旋转开关上,可以方便实现各种音频播放功能控制和通话控制;本发明采用了具有透光隔光结构的频道旋钮,可以让反应蓝牙连接状态和充电状态的光线按照所要求的透光缝隙闪现出来,提升了产品的美学品味而实现成本较低;本发明设置充电电路和充电端口,使得蓝牙控制装置无需更换电池可长期使用;本发明的外壳内两端内壁设置了磁铁,便于平稳可靠地置入对应的充电装置;本发明外壳设有一个话筒与蓝牙芯片电连接,用于语音唤醒遥控器以及语音识别遥控命令。本发明的外壳靠近音量旋钮的端面还设置有挂钩装置,可以用于拴绳便于悬挂玩,而外壳的下壳表面设置有背夹装置,方便将遥控器固定在其他物品上,使用和携带方式灵活多样。在本发明中,音量旋钮操控带按压键的音量旋转编码器,可以360度旋转,顺时针方向转动时,音量增加,逆时针方向转动时,音量减少,当短暂按压时,起暂停/播放功能键作用,如果长按可唤醒话筒;当通话接入智能手机时,智能手机会振铃/振动,此时,短按一次可控制蓝牙耳机接听电话,接听后再按压一次就挂断;当通话接入时,长按一次为拒接电话。通过软件设置,可以实现在通话中长按音量旋钮3秒,本机可静音,但能听到对方声音,再次长按可解除通话静音。
本发明的频道旋钮可以操控带按压键的可复位的旋转开关,可以顺时针旋转,可以逆时针旋转,通过软件,可以定义其功能如下,顺时针旋转一次并回弹,其操作是选下一个频道;顺时针旋转两次并回弹,其操作是频道内下一曲;顺时针旋转保持不回弹,其操作是快进;逆时针旋转一次并回弹,其操作是选上一个频道;逆时针旋转两次并回弹,其操作是频道内上一曲;顺时针旋转保持不回弹,其操作是快退;顺时针旋转2次并回弹,其他音乐APP下一曲,逆时针旋转2次并回弹,其操作是其他音乐APP上一曲;旋钮中间按键短按两次调起相机功能,可支持众多拍照视频软件;中间按键短按3次锁屏。相比其它控制器,本发明的蓝牙控制装置使用更加方便,功能更加全面。
附图说明
图1是本发明蓝牙控制装置实施例中与智能手机及蓝牙耳机的连接示意图;
图2是本发明蓝牙控制装置实施例中蓝牙主控芯片逻辑框图;
图3-图9组成本发明蓝牙控制装置实施例的电路原理示意图;
图10是发明蓝牙控制装置实施例的结构示意图;
图11是发明蓝牙控制装置实施例的结构剖面示意图;
图12是发明蓝牙控制装置实施例的结构分解示意图;
图13是发明蓝牙控制装置实施例中频道旋钮的结构示意图;
图14是说明本发明蓝牙控制装置工作流程的示意图。
本发明的实施方式
图中标号统一说明如下:10:外壳;11:上壳;12:下壳;20:电路板;30:电池;40:音量旋钮;50:频道旋钮;51:中央导光部;52:隔光层;53:外围半透装饰层;60:充电端口;71:第一磁铁;72:第二磁铁;81:挂钩装置;82:背夹装置;100:蓝牙控制装置;200:智能手机;300:蓝牙耳机;U1:蓝牙主控芯片;U2:充电电路;S2:带按压键的音量旋转编码器;S3:带按压键的可复位的旋转开关;D1-D3:发光二极管。
在图1本发明蓝牙控制装置实施例中,包括蓝牙控制装置100、智能手机200和蓝牙耳机300,其中,本发明的蓝牙控制装置100可以与智能手机200进行蓝牙连接。其中,本发明的蓝牙控制装置100使用双模蓝牙主控芯片,可利用现有协议巧妙控制但又不影响语音或音乐;智能手机200,其通话状态和多媒体播放状态可被外部直接被控制;蓝牙耳机300(无线、有线),也可以是其他任何型号的TWS耳机,或其他蓝牙通信的音乐设备且可与智能手机200蓝牙连接。
本发明蓝牙控制装置属于一种信息HID(Human Interface Devices的缩写)设备,这种设备通常指直接与人交互的设备,如鼠标,键盘等等,通常通过USB接口进行交互。本发明利用这种设备与智能手机的配合,可以将人通过旋钮或按键或其他触控操作转化为智能手机系统能够识别的控制命令,达到控制蓝牙耳机或其他蓝牙音频播放终端实现多媒体播放功能控制和电话操作的目的。在本发明中,接受人机交互的装置称为人机交互装置,图1未示出。
当本发明的蓝牙控制装置100与智能手机200通过蓝牙协议连接成功后,蓝牙控制装置100通过智能手机200可以控制手机通话功能和多媒体播放功能在蓝牙耳机300上的实现,即让蓝牙耳机300执行蓝牙控制装置100发出的各种控制命令。在此使用过程中,蓝牙控制装置100不会抢断智能手机200与蓝牙耳机300(或其他蓝牙音乐设备)的音频信号和通话语音,只具备控制功能,只是将用于通过与蓝牙控制装置交互产生的控制命令发送到蓝牙耳机执行。其中,本发明的蓝牙控制装置100是通过人机交互装置获取人的控制指令或命令的。这样,可以将本发明提供的蓝牙控制装置表述为,包括接受人的控制指令或命令的人机交互装置,以及连接并受控于人机交互装置的蓝牙主控芯片,蓝牙主控芯片可以将来自人机交互装置的指令或命令,按照一种协议,以蓝牙传输方式传输到智能手机200并通过智能手机200让蓝牙耳机300执行对应的动作。
在本发明蓝牙控制方法/装置的一个实施例中,使用的蓝牙主控芯片,如图2,包括总线AHB和用于将外围设备通过AHB2APB连接到蓝牙系统核心的外围总线APB,AHB总线上有核心处理器ARM-Cortex、 蓝牙协议相关接口 BT MAC PHY,以及数据存储设备SRAM、BOOT ROM、FLASH和DMA1,外围总线APB上有通用控制协议接口I2C、SPI、GPIO和UART、提供外部时钟数据的TIMER、数据传输接口PCM和PWM、测试接口CMU 、供电接口GPADC、数字与模拟信号的转换电路CODEC以及异常复位定时器WDT。
在本发明一个实施例中,人机交互装置需要处理的人机交互指令或命令包括四个部分:1、跟音量大小控制有关的,例如,1/5音量,2/5音量,3/5音量,4/5音量,5/5音量,这样的5档音量大小,也可以是更多更少的档位,也可以无级调节;2)跟多媒体/音频播放有关的,例如,播放,暂停;3)跟播放多媒体/音频的内容有关的,例如,上一曲、下一曲、上一频道、下一频道等;4)跟电话功能有关的命令,例如,接听,挂断、拒听和回拨电话等。
在本发明的另一个实施例中,可以将上述实施例中四个部分的控制命令分别由四个人机交互的单元来分别处理,这样,人机交互装置设置成包括:1)用于提供音量增加、减小的信号的音量控制单元;2)用于提供播放/暂停信号的播放控制单元、用于提供上一取、下一曲、上一频道、下一频道控制信号的内容控制单元、用于提供接听、挂断、拒听和回拔电话命令信号的电话功能控制单元。其中,音量控制单元包括至少一个按键或编码开关,内容控制单元包括至少一个按键或编码开关,电话功能控制单元包括至少一个按键或编码开关,播放控制单元包括至少一个按键或编码开关。
在本发明蓝牙控制装置的另一实施例中,组成蓝牙控制装置的电路原理图中,
提供音量控制单元和播放控制单元的机构包括一个带按压键的旋转编码器(S2),如图8。提供内容控制单元和电话功能控制单元的机构包括一个带按压键的可复位的旋转开关(S3),如图9。
在图3-图9示出的本发明蓝牙控制装置的电路原理图中,包括用于控制蓝牙耳机音频音频播放音量等多种功能的带按压键的音量旋钮编码器S2(图8),用于实现频道/节目选择等多种功能的带按压键的可复位的旋转开关S3(图9),用于实现整个蓝牙控制装置的功能的蓝牙主控芯片U1(图3),用于对内置电池进行充电控制的充电IC U2(图6),用于给蓝牙主控芯片U1接入音频输入的话筒MIC(图3),用于显示蓝牙连接状态或充电状态的发光二极管D1-D3(图7),用于对LED发光进行控制的三极管Q1-Q2(图7),以及用于对电源进行控制的三极管Q3-Q4(图5)。
本实施例电路的工作原理简述如下:
蓝牙主控芯片U1(图3)可以通过蓝牙通信协议实现与智能手机200的蓝牙连接;带按压键的音量旋转编码器S2(图8)用于控制智能手机所连接蓝牙耳机的音频播放音量及其他功能,具体来讲,编码器S2被旋钮逆时针/顺时针旋转时,在编码器S2的EN1_A/EN1_B两引脚上产生相位不同的波形,通过U1主控程序识别后,向智能终端发出音量增加/减少指令。按压S2会在引脚EN1_SW上产生低电平 ,通过U1主控程序识别后,发出控制命令。特别的,在不同状态下会有不同命令:在来电时,会发出接听命令,在通话中会发出挂断命令,长按时会发出回拔电话命令。在音乐播放时会发出播放/暂停命令。图9中,S3为带按压键的可复位的旋转开关,在短时拨动时会发出上/下曲命令,在拨动后保持2S会发出上/下频道命令/保持3S会发出快进快退命令。具体说,其功能如下,顺时针旋转一次并回弹,其操作是选下一个频道;顺时针旋转两次并回弹,其操作是频道内下一曲;顺时针旋转保持不回弹,其操作是快进;逆时针旋转一次并回弹,其操作是选上一个频道;逆时针旋转两次并回弹,其操作是频道内上一曲;顺时针旋转保持不回弹,其操作是快退;顺时针旋转2次并回弹,其他音乐APP下一曲,逆时针旋转2次并回弹,其操作是其他音乐APP上一曲;旋钮中间按键短按两次调起相机功能,可支持众多拍照视频软件;中间按键短按3次则可锁屏。
本发明实施例中采用了双模蓝牙芯片,这种芯片是指芯片包含传统蓝牙+低功耗蓝牙(LE)两种功能。这种双模蓝牙芯片既可以传递音频信号,又可以低功耗的方式传递控制信号。 在本发明蓝牙控制装置100的实施例中,上述的HFP是协议属于传统蓝牙的一部分,而像播放暂停/上下曲等命令是通过BLE 方式传输,所以只能使用双模蓝牙芯片。具体参考图3-图9,本实施例的蓝牙控制装置100包括蓝牙芯片AC6926(图3)和充电芯片WS4508E(图6),AC6926通过编程可完成蓝牙控制装置的主要功能,型号为AC6926的蓝牙芯片的外围部分中,K1-K5,为功能按键,T1-T4为编码器接触点(本实施例中,编码器接触点部分单独设置在一块小板上)。CY1提供24M时钟供AC6926工作。R4/R5构成电池电量检测电路(图4),用来检测电池电量并提供报警依据。USB1为MICRO USB接口的充电端口。DP/DM引脚用来升级AC6926的固件。ANT1是贴片式蓝牙天线,用来接收和发射蓝牙2.4G 信号(图3)。
在如图2电路图中,发光二极管D2/D3/D4 可以显示蓝牙连接状态或电池充电状态。图2电路图中MK1为话筒MIC,用于将语音转化为电信号输入到U1芯片进行处理,例如可以用于唤醒蓝牙控制装置或输入并识别语音命令。在图2电路的充电与控制部分,J1为充电触点,通过充电集成电路U2给内置锂电池30充电。三极管Q3/Q4为电源控制部分,在充电时Q3断开,对蓝牙芯片U1不供电。当不充电时,Q3开启,提供电源给蓝牙芯片U1,蓝牙芯片U1开始工作。
在本发明实施例中,蓝牙控制装置100通过支持HFP协议的蓝牙协议与智能手机200连接,但不使用SCO (Synchronous Connection Oriented的缩写)链路。SCO链路的作用是用来传输对时间要求很高的数据通信,如电话通话时的语音,此处,通过禁用SCO链路来保障蓝牙控制装置100只发送控制命令而不允许介入电话通话时语音数据。在本发明中,蓝牙控制装置只用于控制,本身不具备通话功能,如果同时让蓝牙控制装置100保留SCO链路的功能,会将智能手机200或与智能手机连接的另一个蓝牙设备的通话语音传到蓝牙控制装置100,导致智能手机200或另一个蓝牙设备无法正常产生说话语音。在本发明的蓝牙控制装置100中,由于所采用的蓝牙协议支持HFP协议(HFP是Hands Free profile的缩写),即蓝牙免提协议,属于传统蓝牙协议栈的一个子集,可以让诸如蓝牙耳机300的设备实现作为音频网关的远程音频输入/输出机制,并可提供若干遥控功能。由于采用了支持HFP协议的蓝牙协议,可提供控制手机的电话功能。
在本发明实施例中,蓝牙控制装置100禁止A2DP协议。蓝牙耳机300的多媒体控制可以由蓝牙控制装置100通过蓝牙HID协议进行控制。同样,蓝牙耳机300的多媒体控制也可以由蓝牙控制装置100通过BLE HID协议进行控制。此处,通过禁止A2DP协议,保障蓝牙控制装置100只用于控制,不具备播放音乐的功能;A2DP 英文全称“Advanced Audio Distribution Profile”的缩写,主要是用来传输音乐等高级音频信号,A2DP协议也是蓝牙协议栈的一部分,禁止该协议可通过在程序代码调用相关的宏实现。
在本发明上述实施例中,通过对蓝牙协议的取舍尤其是蓝牙协议栈中的协议的取舍,达到蓝牙控制装置对手机的通话控制功能。蓝牙控制装置对手机通话功能的直接控制正是本发明最主要的贡献。 
在图10-图12所示本发明蓝牙控制装置实施例的示意图中,外壳10包括上壳11和下壳12,电路板20装在上壳11与下壳12之间,外壳10的上面有较大直径的频道旋钮50和较小直径的音量旋钮40。外壳10靠近音量旋钮40的端面设置有挂钩装置81用于栓绳悬挂,外壳10的下壳表面设置有背夹装置82,用于将蓝牙控制装置外壳10夹持在其他物品上,这种设计提供了蓝牙控制装置多样灵活的把持和携带方式。下壳12靠近两端的内壁分别设置有用于将蓝牙控制装置平稳吸附于充电机构的第一磁铁71和第二磁铁72,方便其与充电器的可靠的吸附。
 图13是发明蓝牙控制装置实施例中频道旋钮的结构示意图;频道旋钮50包括中央导光部51、外围半透装饰层53以及居于导光部51与外围半透装置层之间的隔光层52。由于在电路板20上设置有用于指示蓝牙连接状态或充电状态的发光二极管,这样,发光二极管产生的光亮可以通过中央的导光部51在隔光层52的包围下射出,此时可以在端面设置铭牌,让光线从铭牌与导光部端面之间形成的光的缝隙中射出,给人以美感。
在图14所示本发明蓝牙控制装置的工作流程中,首先程序启动,扫描按键,检测有无按键按下,如无按键按下,等待2秒结束,如有按键按下,则判断是否通话,如是电话通话,发送HFP,等待2秒,结束;如不是电话通话则进行HID/HOGP操作,发送蓝牙命令,等待2秒,结束。
应当理解的是,对本领域普通技术人员来说,可以根据上述说明加以改进或变换,而所有这些改进和变换都应属于本发明所附权利要求的保护范围。

Claims (13)

  1. 一种蓝牙控制方法,用于在蓝牙控制装置(100)、智能手机(200)以及蓝牙耳机(300)之间,将作用于蓝牙控制装置(100)的人机交互产生的控制命令通过智能手机(200)传送到蓝牙耳机(200),包括以下步骤:
    S1) 蓝牙控制装置(100)的双模蓝牙芯片通过蓝牙协议HFP与智能手机(200)建立蓝牙连接;
    S2)蓝牙耳机(300)与智能手机(200)建立蓝牙连接;
    S3) 与蓝牙耳机(300)连接的智能手机(200)在通话状态,所述蓝牙控制装置(100)产生的控制命令直接传送到智能手机(200)中的通话模块令蓝牙耳机(300)执行;
    S4) 与蓝牙耳机(300)连接的智能手机(200)在音频播放状态,所述蓝牙控制装置(100)产生的控制命令,由智能手机(200)通过蓝牙HID或BLE HID协议直接传送到蓝牙耳机(300)执行。
  2. 根据权利要求1所述蓝牙控制方法,其特征在于,所述蓝牙控制装置(100)的程序启动后,执行以下步骤:
    S1)扫描按键,检测有无按键按下;
    S2)如在S1检测到无按键按下,等待1-3秒结束;
    S3)如在S1检测到有按键按下,则判断是否通话;
    S4)如在S3判断是电话通话,发送HFP,等待1-3秒,结束;
    S5)如在S3判断不是电话通话,则进行HID/HOGP操作,发送蓝牙命令,等待2秒,结束。
  3. 根据权利要求2所述蓝牙控制方法,其特征在于,所述步骤S3中,所述蓝牙控制装置(100)产生的控制命令包括接听、挂断、拒听和回拔电话;在所述步骤S4中,所述蓝牙控制装置(100)产生的控制命令包括音量、播放/暂停、换曲、切换频道。
  4. 据权利要求3所述蓝牙控制方法,其特征在于,在所述步骤S1中,蓝牙控制装置(100)通过蓝牙协议HFP与智能手机(200)连接时,不使用SCO链路;蓝牙控制装置(100)通过协议栈设置禁止A2DP协议。
  5. 一种蓝牙控制装置,其特征在于,包括蓝牙主控芯片以及与蓝牙主控芯片连接的人机交互装置(90),所述蓝牙主控芯片包括响应所述人机交互装置(90)执行如权利要求1-4中任何一项所述方法的程序。
  6. 根据权利要求5所述蓝牙控制装置,其特征在于,所述人机交互装置(90)包括用于提供音量增加、减小的信号的音量控制单元(91)、用于提供播放/暂停信号的播放控制单元(92)、用于提供上一取、下一曲、上一频道、下一频道控制信号的内容控制单元(93)、用于提供接听、挂断、拒听和回拔电话命令信号的电话功能控制单元(94)。
  7. 根据权利要求6所述蓝牙控制装置,其特征在于,所述音量控制单元(91)包括至少一个按键或编码开关,所述内容控制单元(93)包括至少一个按键或编码开关,所述电话功能控制单元(94)包括至少一个按键或编码开关,所述播放控制单元(92)包括至少一个按键或编码开关。
  8. 根据权利要求7所述蓝牙控制装置,其特征在于,所述音量控制单元(91)和所述播放控制单元(92)包括一个带按压键的旋转编码器(S2)。
  9. 根据权利要求7所述蓝牙控制装置,其特征在于,所述内容控制单元(93)和所述电话功能控制单元(94)包括一个带按压键的可复位的旋转开关(S3)。
  10. 根据权利要求5-9中任何一项所述蓝牙控制装置,包括外壳(10)、内置的电路板(20)和电池(30),其特征在于,所述蓝牙主控芯片(U1)装在所述电路板(20)上,所述电路板(20)上装有与所述蓝牙主控芯片(U1)电连接的所述带按压键的音量旋转编码器(S2)和带按压键的可复位的旋转开关(S3),所述外壳(10)上装有连接所述音量旋转编码器(S2)转轴的音量旋钮(40)及连接带按压键的可复位旋转开关(S3)转轴的频道旋钮(50)。
  11. 根据权利要求10所述蓝牙控制装置,其特征在于,所述蓝牙主控芯片(U1)包括一个型号为AC6926的集成电路,所述电路板(20)上设置有用于指示蓝牙连接状态或充电状态的发光二极管。
  12. 根据权利要求10所述蓝牙控制装置,其特征在于,所述频道旋钮(50)包括中央导光部(51)、外围半透装饰层(53)以及居于导光部(51)与外围半透装置层之间的隔光层(52)。
  13. 根据权利要求10所述蓝牙控制装置,其特征在于,还包括充电端口(60)以及装在所述电路板(20)上充电电路(U2),所述充电电路(U2)与所述内置电池(30)和充电端口(60)连接,所述外壳(10)内还包括一个话筒,所述话筒与所述蓝牙芯片电连接。
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