CN112073953A - Bluetooth control device and method - Google Patents
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- CN112073953A CN112073953A CN201910502384.XA CN201910502384A CN112073953A CN 112073953 A CN112073953 A CN 112073953A CN 201910502384 A CN201910502384 A CN 201910502384A CN 112073953 A CN112073953 A CN 112073953A
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
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- H—ELECTRICITY
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- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/725—Cordless telephones
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- 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
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- 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
- H04R1/1041—Mechanical or electronic switches, or control elements
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Abstract
The invention relates to a Bluetooth control method and device, which are used for transmitting a control command generated by man-machine interaction acting on a Bluetooth control device to a Bluetooth headset through the smart phone among the Bluetooth control device (100), the smart phone (200) and the Bluetooth headset (300), wherein the smart phone is respectively in Bluetooth connection with the Bluetooth control device and the Bluetooth headset, the control command is directly transmitted to a call module of the smart phone to be executed by the Bluetooth headset in a call state, and the control command is directly transmitted to the Bluetooth headset by the smart phone through a Bluetooth HID (human interface device) or BLE HID (Low energy human interface device) protocol to be executed in an audio playing state. The Bluetooth control method and the Bluetooth control device provided by the invention are implemented to overcome the defect that the existing Bluetooth control device can only control audio playing and can not control conversation, realize the playing control of the Bluetooth earphone under the condition of not influencing music playing and conversation voice, and simultaneously control the conversation. Compared with other controllers, the controller is more convenient and flexible to use and has more comprehensive functions.
Description
Technical Field
The present invention relates to electronic technologies, and in particular, to a portable bluetooth control apparatus and method for controlling audio playing or call answering of a bluetooth headset or other bluetooth audio devices through an intelligent terminal.
Background
After the bluetooth headset is connected with the smart phone, the bluetooth headset can be used for making a call or playing audio, and at the moment, the volume control of the bluetooth headset is generally realized through a button on the smart phone or an APP playing the audio; when being equipped with bluetooth controlling means for bluetooth headset, during the broadcast audio frequency, current bluetooth controlling means only possesses the multimedia control function: play/pause, up and down, volume, etc., while when used in a telephone, it cannot realize the functions of answering, hanging up, rejecting and dialing back. The defects of the prior art are as follows: the existing Bluetooth control device only has a multimedia control function, can only be operated on a mobile phone for the operation of a telephone, and is inconvenient in the use process. By applying the Bluetooth control device, when the intelligent mobile phone uses a Bluetooth earphone or Bluetooth music equipment, the intelligent mobile phone or the Bluetooth equipment can be simply and conveniently controlled without operating the intelligent mobile phone or the Bluetooth equipment when a call comes.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a bluetooth control method, which can overcome the deficiencies of the prior art, and can control the audio playing on the bluetooth headset and the phone operation on the bluetooth headset by cooperating with the smart phone, thereby realizing the audio playing control and the phone operation without operating the smart phone and the bluetooth headset. Another aspect of the present invention is to provide a bluetooth control device that is portable, easy to operate, and easy to charge.
The technical problem of the present invention is solved by constructing a bluetooth control method for transmitting a control command generated by human-computer interaction acting on a bluetooth control device to a bluetooth headset through a smart phone among the bluetooth control device, the smart phone and the bluetooth headset, comprising the steps of:
s1) the dual-mode Bluetooth chip of the Bluetooth control device is connected with the smart phone through a Bluetooth protocol HFP in a Bluetooth mode;
s2) establishing Bluetooth connection between the Bluetooth headset and the smart phone;
s3) when the smart phone connected with the Bluetooth headset is in a call state, the control command generated by the Bluetooth control device is directly transmitted to a call module in the smart phone to enable the Bluetooth headset to execute;
s4), when the smart phone connected with the Bluetooth headset is in an audio replay state, the control command generated by the Bluetooth control device is directly transmitted to the Bluetooth headset by the smart phone through a Bluetooth HID (high intensity discharge) or BLE HID (very high intensity discharge) protocol to be executed.
In the above bluetooth control method of the present invention, after the program of the bluetooth control apparatus is started, the following steps are performed:
s1), scanning the keys, and detecting whether the keys are pressed down;
s2) waiting for 1-3 seconds to end if no key press is detected at S1;
s3) if it is detected that the button is pressed at S1, determining whether to call;
s4) if it is judged at S3 that the call is a telephone call, transmitting HFP, waiting for 1-3 seconds, and ending;
s5) if it is not the telephone call in S3, the HID/hog operation is performed, a bluetooth command is sent, and the process waits for 2 seconds and ends.
In the above bluetooth control method of the present invention, in step S3, the control command generated by the bluetooth control apparatus includes answering, hanging up, rejecting and calling back; in step S4, the control commands generated by the bluetooth control device include volume, play/pause, change music, and switch channels.
In the above bluetooth control method of the present invention, in step S1, when the bluetooth control apparatus is connected to the smartphone through the bluetooth protocol HFP, the SCO link is not used; the bluetooth control apparatus sets the prohibition A2DP protocol through the protocol stack.
In another aspect, the present invention provides a bluetooth control apparatus, including a bluetooth main control chip and a human-computer interaction apparatus connected to the bluetooth main control chip, where the bluetooth main control chip includes a program for executing the method described above in response to the human-computer interaction apparatus.
In the above bluetooth control apparatus of the present invention, the human-computer interaction device includes a volume rotary encoder (S2) with a pressed key and a resettable rotary switch (S3) with a pressed key.
The Bluetooth control device comprises a shell, a built-in circuit board and a battery, wherein the Bluetooth main control chip is arranged on the circuit board, the circuit board is provided with a volume rotary encoder (S2) with a press key and a resettable rotary switch (S3) with the press key, the volume rotary encoder is electrically connected with the Bluetooth main control chip (U1), and the shell is provided with a volume knob connected with a rotary shaft of the volume rotary encoder and a channel knob connected with a resettable rotary switch rotary shaft of the press key.
In the above bluetooth control apparatus of the present invention, the bluetooth main control chip (U1) includes an integrated circuit with a model AC6926, and the circuit board is provided with a light emitting diode for indicating a bluetooth connection state or a bluetooth charging state.
In the above bluetooth control device of the present invention, the channel knob includes a central light guide portion, a peripheral semi-transparent decoration layer, and a light-blocking layer interposed between the light guide portion and the peripheral semi-transparent decoration layer.
In the above bluetooth control device of the present invention, the bluetooth control device further comprises a charging port and a charging circuit mounted on the circuit board, the charging circuit (U2) is connected to the built-in battery and the charging port, the housing further comprises a microphone, and the microphone is electrically connected to the bluetooth chip.
By implementing the Bluetooth control method and the Bluetooth control device provided by the invention, aiming at the defect that the existing Bluetooth control device of the audio playing equipment can only control audio playing and can not control mobile phone conversation, through analyzing and accepting or rejecting Bluetooth related protocols, under the condition of not influencing music playing and conversation voice, the multimedia playing control of a Bluetooth earphone or a player is realized, and meanwhile, the conversation can also be controlled. The Bluetooth control device realizes the following functions through HFP and HID protocols: bluetooth headset, bluetooth music equipment's multimedia control: volume, play, change song, switch functions such as channel, telephone function: answering, rejecting, calling back and the like.
In the bluetooth control device provided by the invention, as the volume knob 40 and the channel knob 50 can be respectively connected to the volume rotary encoder with the press key and the resettable rotary switch of the press key by adopting screws, various audio play function control and call control can be conveniently realized; the invention adopts the channel knob with the light-transmitting and light-isolating structure, so that light reflecting the Bluetooth connection state and the charging state can flash according to the required light-transmitting gap, the aesthetic quality and taste of the product are improved, and the realization cost is lower; the charging circuit and the charging port are arranged, so that the Bluetooth control device can be used for a long time without replacing a battery; the magnets are arranged on the inner walls of the two ends in the shell, so that the corresponding charging device can be conveniently, stably and reliably placed in the shell; the shell of the invention is provided with a microphone which is electrically connected with the Bluetooth chip and used for voice awakening of the remote controller and voice recognition of remote control commands. The end face, close to the volume knob, of the shell is also provided with the hook device which can be used for tying a rope to be conveniently hung for playing, the surface of the lower shell of the shell is provided with the back clip device which is convenient for fixing the remote controller on other articles, and the use and carrying modes are flexible and various. In the invention, the volume rotary encoder with the press key is controlled by the volume knob, the volume rotary encoder can rotate by 360 degrees, when the volume rotary encoder rotates clockwise, the volume is increased, when the volume rotary encoder rotates anticlockwise, the volume is reduced, when the volume rotary encoder is pressed for a short time, the volume rotary encoder plays a role of a pause/play function key, and if the volume rotary encoder is pressed for a long time, the microphone can be awakened; when the intelligent mobile phone is connected in a call, the intelligent mobile phone rings/vibrates, at the moment, the Bluetooth earphone can be controlled to answer the call by pressing once, and the intelligent mobile phone is hung up by pressing once after answering; when the call is accessed, the call is refused after being pressed once. Through software setting, the mute function of the mobile phone can be realized by pressing the volume knob for 3 seconds in a call, but the mobile phone can hear the voice of the other party, and the mute function of the call can be released by pressing the volume knob for a long time again.
The channel knob can control a resettable rotary switch with a press key, can rotate clockwise and can rotate anticlockwise, the functions of the channel knob can be defined as follows through software, the channel knob rotates once clockwise and rebounds, and the operation is to select the next channel; rotating twice clockwise and rebounding, wherein the operation is the next song in the channel; clockwise rotation remains un-rebounded, the operation of which is fast forward; rotating once counterclockwise and rebounding, wherein the operation is to select the last channel; rotating twice anticlockwise and rebounding, wherein the operation is the last song in the channel; clockwise rotation is kept without springback, and the operation is fast backward; clockwise rotating for 2 times and rebounding, anticlockwise rotating for 2 times and rebounding for the next music APP, and operating for the previous music APP; the middle button of the knob is pressed for two times to call up the camera function, and can support a plurality of photographing video software; the middle key is pressed for 3 times to lock the screen. Compared with other controllers, the Bluetooth control device is more convenient to use and more comprehensive in function.
Drawings
FIG. 1 is a schematic diagram of connection with a smart phone and a Bluetooth headset in an embodiment of a Bluetooth control apparatus of the present invention;
FIG. 2 is a logic block diagram of a Bluetooth host chip in an embodiment of the Bluetooth control apparatus of the present invention;
FIGS. 3-9 are schematic diagrams of the circuit of the embodiment of the Bluetooth control device of the present invention;
FIG. 10 is a schematic structural diagram of an embodiment of the inventive Bluetooth control device;
FIG. 11 is a schematic sectional view of the Bluetooth control device of the present invention;
FIG. 12 is an exploded view of an embodiment of the Bluetooth control device of the present invention;
FIG. 13 is a schematic diagram of a channel knob in an embodiment of the Bluetooth enabled device of the present invention;
fig. 14 is a schematic diagram illustrating the operation flow of the bluetooth control apparatus of the present invention.
Detailed Description
The numbers in the figures are collectively illustrated as follows: 10: a housing; 11: an upper shell; 12: a lower case; 20: a circuit board; 30: a battery; 40: a volume knob; 50: a channel knob; 51: a central light guide portion; 52: a light-blocking layer; 53: a semi-permeable decorative layer is arranged on the periphery of the base; 60: a charging port; 71: a first magnet; 72: a second magnet; 81: a hooking device; 82: a back-clip device; 100: a Bluetooth control device; 200: a smart phone; 300: a Bluetooth headset; u1: a Bluetooth master control chip; u2: a charging circuit; s2: volume rotary encoder with pressing key; s3: a resettable rotary switch with a push key; D1-D3: a light emitting diode.
Fig. 1 shows an embodiment of the bluetooth control apparatus according to the present invention, which includes a bluetooth control apparatus 100, a smart phone 200, and a bluetooth headset 300, wherein the bluetooth control apparatus 100 according to the present invention can perform bluetooth connection with the smart phone 200. The Bluetooth control device 100 of the invention uses a dual-mode Bluetooth main control chip, can be skillfully controlled by using the existing protocol, and does not influence voice or music; the smart phone 200, of which the call state and the multimedia play state can be directly controlled externally; bluetooth headset 300 (wireless, wired), may also be any other type of TWS headset, or other bluetooth communicating music device and may be bluetooth connected to smartphone 200.
The bluetooth control device of the present invention belongs to an information HID (Human Interface Devices abbreviation) device, and such a device generally refers to a device that directly interacts with Human, such as a mouse, a keyboard, etc., and generally interacts through a USB Interface. The invention utilizes the matching of the device and the smart phone, can convert the human operation through a knob or a key or other touch control operations into a control command which can be identified by a smart phone system, and achieves the purpose of controlling a Bluetooth earphone or other Bluetooth audio playing terminals to realize the control of multimedia playing function and telephone operation. In the present invention, a device that accepts human-computer interaction is referred to as a human-computer interaction device, which is not shown in fig. 1.
When the bluetooth control apparatus 100 and the smart phone 200 of the present invention are successfully connected via the bluetooth protocol, the bluetooth control apparatus 100 can control the implementation of the phone call function and the multimedia playing function on the bluetooth headset 300 via the smart phone 200, that is, the bluetooth headset 300 executes various control commands sent by the bluetooth control apparatus 100. In the using process, the bluetooth control apparatus 100 does not rob the smart phone 200 and the bluetooth headset 300 (or other bluetooth music devices) of audio signals and call voices, only has a control function, and only sends a control command generated by interaction with the bluetooth control apparatus to the bluetooth headset for execution. The bluetooth control apparatus 100 of the present invention obtains a control command or command of a person through a human-computer interaction apparatus. Thus, the bluetooth control apparatus provided by the present invention can be expressed as including a human-computer interaction apparatus for receiving a control command or command of a human, and a bluetooth main control chip connected to and controlled by the human-computer interaction apparatus, where the bluetooth main control chip can transmit the command or command from the human-computer interaction apparatus to the smart phone 200 in a bluetooth transmission manner according to a protocol, and allow the bluetooth headset 300 to execute a corresponding action through the smart phone 200.
In an embodiment of the bluetooth control method/apparatus of the present invention, a bluetooth master control chip is used, as shown in fig. 2, which includes a bus AHB and a peripheral bus APB for connecting peripheral devices to a core of a bluetooth system through the AHB2APB, the AHB bus has a core processor ARM-Cortex, a bluetooth protocol related interface BT MAC PHY, and data storage devices SRAM, BOOT ROM, FLASH, and DMA1, the peripheral bus APB has a general control protocol interface I2C, SPI, GPIO, and UART, a TIMER for providing external clock data, data transmission interfaces PCM and PWM, a test interface CMU, a power supply interface GPADC, a digital-to-analog signal conversion circuit CODEC, and an abnormal reset TIMER WDT.
In one embodiment of the present invention, the human-computer interaction instruction or command that the human-computer interaction device needs to process includes four parts: 1. the volume control is related to, for example, 1/5 volume, 2/5 volume, 3/5 volume, 4/5 volume, 5/5 volume, and the volume of 5 steps can be more or less steps and can be adjusted steplessly; 2) in connection with multimedia/audio playback, e.g., play, pause; 3) related to the content playing the multimedia/audio, e.g., previous song, next song, previous channel, next channel, etc.; 4) commands related to telephone functions such as answering, hanging up, rejecting, and calling back.
In another embodiment of the present invention, the four parts of the control commands in the above embodiment may be processed by four human-computer interaction units, respectively, so that the human-computer interaction device is configured to include: 1) a volume control unit for providing a signal of volume increase and decrease; 2) a play control unit for providing play/pause signals, a content control unit for providing control signals of a last song, a next song, a last channel and a next channel, and a telephone function control unit for providing command signals of answering, hanging up, rejecting and calling back. The volume control unit comprises at least one key or a coding switch, the content control unit comprises at least one key or a coding switch, the telephone function control unit comprises at least one key or a coding switch, and the playing control unit comprises at least one key or a coding switch.
In another embodiment of the bluetooth control apparatus of the present invention, in the schematic circuit diagram constituting the bluetooth control apparatus, the mechanism for providing the volume control unit and the play control unit includes a rotary encoder with a pressed key (S2), as shown in fig. 8. The mechanism for providing the contents control unit and the phone function control unit includes a resettable rotary switch with a pressed key (S3), as shown in fig. 9.
In the circuit schematic diagrams of the bluetooth control apparatus of the present invention shown in fig. 3 to 9, a volume knob encoder S2 (fig. 8) with a pressed key for controlling various functions such as audio playing volume of the bluetooth headset is included, a resettable rotary switch S3 with depressed keys for performing a variety of functions such as channel/program selection (figure 9), a bluetooth master control chip U1 (fig. 3) for implementing the functions of the entire bluetooth control apparatus, a charging IC U2 (fig. 6) for performing charging control of a built-in battery, a microphone MIC (fig. 3) for inputting audio to the bluetooth master control chip U1, light emitting diodes D1-D3 (fig. 7) for displaying a bluetooth connection state or charging state, transistors Q1-Q2 (fig. 7) for controlling the illumination of the LED, and transistors Q3-Q4 (fig. 5) for controlling the power supply.
The working principle of the circuit of the embodiment is briefly described as follows:
the bluetooth master control chip U1 (fig. 3) may implement bluetooth connection with the smartphone 200 through a bluetooth communication protocol; specifically, when the encoder S2 is rotated counterclockwise/clockwise by the knob, waveforms with different phases are generated on two pins EN1_ a/EN1_ B of the encoder S2, and after being identified by the U1 main control program, a volume increase/decrease instruction is issued to the smart terminal. Pressing S2 generates a low on EN1_ SW, which is recognized by the U1 host program and issues a control command. In particular, there will be different commands in different states: when a call comes, an answering command is sent, a hang-up command is sent during a call, and a call-back command is sent after a long time. A play/pause command is issued while music is being played. In fig. 9, S3 is a resettable rotary switch with a pressed key, which issues an up/down toggle command during a short toggle, and issues an up/down channel command during a hold 2S after the toggle/issues a fast forward/fast reverse command during a hold 3S. Specifically, the function is that the device rotates once clockwise and rebounds, and the operation is to select the next channel; rotating twice clockwise and rebounding, wherein the operation is the next song in the channel; clockwise rotation remains un-rebounded, the operation of which is fast forward; rotating once counterclockwise and rebounding, wherein the operation is to select the last channel; rotating twice anticlockwise and rebounding, wherein the operation is the last song in the channel; clockwise rotation is kept without springback, and the operation is fast backward; clockwise rotating for 2 times and rebounding, anticlockwise rotating for 2 times and rebounding for the next music APP, and operating for the previous music APP; the middle button of the knob is pressed for two times to call up the camera function, and can support a plurality of photographing video software; the screen can be locked by pressing the middle key for 3 times.
The embodiment of the invention adopts a dual-mode Bluetooth chip, and the chip has two functions of traditional Bluetooth and low-power Bluetooth (LE). The dual-mode Bluetooth chip can transmit audio signals and control signals in a low-power-consumption mode. In the embodiment of the bluetooth control apparatus 100 of the present invention, the HFP is a part of the conventional bluetooth protocol, and commands such as pause/play-up/play-down are transmitted through BLE, so that only the dual-mode bluetooth chip can be used. Referring specifically to fig. 3-9, the bluetooth control apparatus 100 of the present embodiment includes a bluetooth chip AC6926 (fig. 3) and a charging chip WS4508E (fig. 6), where the AC6926 can complete the main functions of the bluetooth control apparatus by programming, and in the peripheral portion of the bluetooth chip with the model AC6926, K1-K5 are function keys, and T1-T4 are encoder contacts (in the present embodiment, the encoder contacts are separately disposed on a small board). CY1 provides a 24M clock for AC6926 to operate. The R4/R5 forms a battery level detection circuit (FIG. 4) for detecting battery level and providing an alarm basis. USB1 is the charging port of the MICRO USB interface. The DP/DM pin is used to upgrade the firmware of AC 6926. ANT1 is a patch bluetooth antenna for receiving and transmitting bluetooth 2.4G signals (fig. 3).
In the circuit diagram of FIG. 2, the LEDs D2/D3/D4 can display the Bluetooth connection status or the battery charging status. MK1 in the circuit diagram of fig. 2 is a microphone MIC for converting voice into an electrical signal to be input to a U1 chip for processing, which may be used for example to wake up a bluetooth control device or to input and recognize voice commands. In the charging and control portion of the circuit of fig. 2, J1 is a charging contact for charging the lithium battery 30 via the charging ic U2. The triode Q3/Q4 is a power supply control part, and Q3 is disconnected during charging, so that power is not supplied to the Bluetooth chip U1. When the charging is not carried out, the Q3 is turned on, power is supplied to the Bluetooth chip U1, and the Bluetooth chip U1 starts to work.
In the embodiment of the present invention, the bluetooth control apparatus 100 is connected to the smartphone 200 by the bluetooth protocol supporting the HFP protocol, but does not use an SCO (abbreviation of Synchronous Connection interface) link. The SCO link is used to transmit data communication with high time requirement, such as voice during telephone conversation, and here, the SCO link is disabled to ensure that the bluetooth control apparatus 100 only transmits control commands and does not allow voice data during telephone conversation to be inserted. In the present invention, the bluetooth control apparatus is only used for control, and does not have a call function, and if the bluetooth control apparatus 100 retains the function of the SCO link, the call voice of the smart phone 200 or another bluetooth device connected to the smart phone is transmitted to the bluetooth control apparatus 100, so that the smart phone 200 or another bluetooth device cannot normally generate a speaking voice. In the bluetooth control apparatus 100 of the present invention, since the adopted bluetooth protocol supports HFP protocol (HFP is an abbreviation of Hands Free profile), that is, bluetooth handsfree protocol, which belongs to a subset of the conventional bluetooth protocol stack, it is possible to allow a device such as the bluetooth headset 300 to implement a remote audio input/output mechanism as an audio gateway, and to provide several remote control functions. Due to the adoption of the Bluetooth protocol supporting the HFP protocol, the telephone function of controlling the mobile phone can be provided.
In the embodiment of the present invention, the bluetooth control apparatus 100 disables the A2DP protocol. The multimedia control of the bluetooth headset 300 may be controlled by the bluetooth control device 100 through the bluetooth HID protocol. Similarly, the bluetooth headset 300 may be controlled by the bluetooth control device 100 through the BLE HID protocol. Here, by prohibiting the A2DP protocol, it is ensured that the bluetooth control apparatus 100 is used only for control and does not have a function of playing music; the acronym of A2DP english called "Advanced Audio Distribution Profile" is mainly used to transmit Advanced Audio signals such as music, and the A2DP protocol is also part of the bluetooth protocol stack, and the protocol is prohibited from being realized by calling related macros in program codes.
In the above embodiments of the present invention, the function of controlling the call of the bluetooth control device to the mobile phone is achieved by accepting or rejecting the bluetooth protocol, particularly, accepting or rejecting the protocol in the bluetooth protocol stack. The direct control of the Bluetooth control device on the mobile phone communication function is the main contribution of the invention.
In the schematic diagrams of the embodiment of the bluetooth control apparatus of the present invention shown in fig. 10 to 12, the housing 10 includes an upper case 11 and a lower case 12, the circuit board 20 is mounted between the upper case 11 and the lower case 12, and the housing 10 has a channel knob 50 of a larger diameter and a volume knob 40 of a smaller diameter thereon. The end face of the shell 10 close to the volume knob 40 is provided with a hook device 81 for hanging a tether, the lower shell surface of the shell 10 is provided with a back clip device 82 for clamping the shell 10 of the Bluetooth control device on other articles, and the design provides various and flexible holding and carrying modes of the Bluetooth control device. The inner walls of the lower case 12 near both ends are respectively provided with a first magnet 71 and a second magnet 72 for stably adsorbing the bluetooth control device to the charging mechanism, facilitating reliable adsorption of the bluetooth control device to the charger.
FIG. 13 is a schematic diagram of a channel knob in an embodiment of the Bluetooth enabled device of the present invention; the channel knob 50 includes a central light guide 51, a peripheral semi-transparent decorative layer 53, and a light-blocking layer 52 interposed between the light guide 51 and the peripheral semi-transparent decorative layer. Because the circuit board 20 is provided with the light emitting diode for indicating the bluetooth connection state or the charging state, the light generated by the light emitting diode can be emitted under the surrounding of the light isolating layer 52 through the central light guide part 51, and at this time, a nameplate can be arranged on the end surface, so that the light can be emitted from a light gap formed between the nameplate and the end surface of the light guide part, thereby giving aesthetic feeling to people.
In the working flow of the bluetooth control apparatus of the present invention shown in fig. 14, first, the program is started, the keys are scanned, whether the keys are pressed or not is detected, if no keys are pressed, 2 seconds are waited for to be finished, if the keys are pressed, whether the call is made is judged, if the call is a telephone call, HFP is sent, 2 seconds are waited for to be finished; and if the call is not a telephone call, carrying out HID/HOGP operation, sending a Bluetooth command, waiting for 2 seconds, and ending.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (13)
1. A bluetooth control method for transmitting a control command generated by man-machine interaction acting on a bluetooth control apparatus (100) to a bluetooth headset (200) through the smartphone (200) among the bluetooth control apparatus (100), the smartphone (200), and the bluetooth headset (300), comprising the steps of:
s1) the dual-mode Bluetooth chip of the Bluetooth control device (100) establishes Bluetooth connection with the smart phone (200) through a Bluetooth protocol HFP;
s2) the Bluetooth headset (300) establishes Bluetooth connection with the smart phone (200);
s3), when the smart phone (200) connected with the Bluetooth headset (300) is in a conversation state, the control command generated by the Bluetooth control device (100) is directly transmitted to a conversation module in the smart phone (200) to enable the Bluetooth headset (300) to execute;
s4), when the smart phone (200) connected with the Bluetooth headset (300) is in an audio playing state, the control command generated by the Bluetooth control device (100) is directly transmitted to the Bluetooth headset (300) by the smart phone (200) through a Bluetooth HID or BLE HID protocol to be executed.
2. The bluetooth control method according to claim 1, characterized in that after the program of the bluetooth control apparatus (100) is started, the following steps are performed:
s1), scanning the keys, and detecting whether the keys are pressed down;
s2) waiting for 1-3 seconds to end if no key press is detected at S1;
s3) if it is detected that the button is pressed at S1, determining whether to call;
s4) if it is judged at S3 that the call is a telephone call, transmitting HFP, waiting for 1-3 seconds, and ending;
s5) if it is not the telephone call in S3, the HID/hog operation is performed, a bluetooth command is sent, and the process waits for 2 seconds and ends.
3. The bluetooth control method according to claim 2, wherein in step S3, the bluetooth control apparatus (100) generates control commands including answering, hanging up, rejecting and calling back; in step S4, the control commands generated by the bluetooth control device (100) include volume, play/pause, tune change, and channel change.
4. The bluetooth control method according to claim 3, wherein in the step S1, the SCO link is not used when the bluetooth control apparatus (100) is connected to the smartphone (200) via the bluetooth protocol HFP; the Bluetooth control device (100) sets the A2 DP-disabled protocol by the protocol stack.
5. A Bluetooth control device comprising a Bluetooth master chip and a human interaction device (90) connected to the Bluetooth master chip, the Bluetooth master chip comprising a program for performing the method of any one of claims 1 to 4 in response to the human interaction device (90).
6. The bluetooth control device according to claim 5, wherein the human-computer interaction device (90) comprises a volume control unit (91) for providing signals of volume increase and volume decrease, a play control unit (92) for providing play/pause signals, a content control unit (93) for providing control signals of last take, next tune, last channel and next channel, and a telephone function control unit (94) for providing command signals of answering, hanging up, rejecting and calling back.
7. The bluetooth control device according to claim 6, wherein the volume control unit (91) comprises at least one key or code switch, the content control unit (93) comprises at least one key or code switch, the telephone function control unit (94) comprises at least one key or code switch, and the playback control unit (92) comprises at least one key or code switch.
8. The bluetooth control device according to claim 7, wherein the volume control unit (91) and the playback control unit (92) include a rotary encoder (S2) with a depressed key.
9. The bluetooth control device according to claim 7, wherein the contents control unit (93) and the phone function control unit (94) include a resettable rotary switch (S3) with a depressed key.
10. The bluetooth control apparatus according to any one of claims 5-9, comprising a housing (10), a built-in circuit board (20) and a battery (30), wherein the bluetooth main control chip (U1) is mounted on the circuit board (20), the circuit board (20) is mounted with the volume rotary encoder (S2) with the pressed key and the resettable rotary switch (S3) with the pressed key electrically connected to the bluetooth main control chip (U1), and the housing (10) is mounted with the volume rotary knob (40) connected to the rotary shaft of the volume rotary encoder (S2) and the channel rotary knob (50) connected to the rotary shaft of the resettable rotary switch (S3) with the pressed key.
11. The bluetooth control device according to claim 10, wherein the bluetooth master control chip (U1) comprises an integrated circuit with a model AC6926, and the circuit board (20) is provided with a light emitting diode for indicating the bluetooth connection status or charging status.
12. The bluetooth control device according to claim 10, wherein the channel knob (50) comprises a central light guide (51), a peripheral semi-transparent decorative layer (53), and a light barrier layer (52) interposed between the light guide (51) and the peripheral semi-transparent decorative layer.
13. The bluetooth control device according to claim 10, further comprising a charging port (60) and a charging circuit (U2) mounted on the circuit board (20), wherein the charging circuit (U2) is connected to the built-in battery (30) and the charging port (60), and further comprising a microphone in the housing (10), wherein the microphone is electrically connected to the bluetooth chip.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910502384.XA CN112073953A (en) | 2019-06-11 | 2019-06-11 | Bluetooth control device and method |
| PCT/CN2019/100061 WO2020248354A1 (en) | 2019-06-11 | 2019-08-09 | Bluetooth control apparatus and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910502384.XA CN112073953A (en) | 2019-06-11 | 2019-06-11 | Bluetooth control device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112073953A true CN112073953A (en) | 2020-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910502384.XA Pending CN112073953A (en) | 2019-06-11 | 2019-06-11 | Bluetooth control device and method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112073953A (en) |
| WO (1) | WO2020248354A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113872704A (en) * | 2021-09-26 | 2021-12-31 | 深圳市芯中芯科技有限公司 | General Bluetooth module production test system and method based on small program |
| CN114844735B (en) * | 2022-03-28 | 2023-10-27 | 海信视像科技股份有限公司 | Display equipment and voice forwarding method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080214247A1 (en) * | 2007-03-01 | 2008-09-04 | Inventec Corporation | Communication method and communication system |
| CN101425825B (en) * | 2007-10-30 | 2012-10-10 | 中兴通讯股份有限公司 | Bluetooth connection control method |
| CN203504561U (en) * | 2013-06-05 | 2014-03-26 | 王宇 | Vehicle bluetooth multimedia system |
| CN104157119B (en) * | 2014-08-06 | 2018-01-16 | 朱亚光 | Digiplex intercommunication integration external member |
| CN106060713A (en) * | 2016-07-19 | 2016-10-26 | 深圳市亚冠电子有限公司 | Vehicular Bluetooth playing device |
| CN106850000A (en) * | 2016-12-06 | 2017-06-13 | 广东金润和科技股份有限公司 | Vehicular communication system based on Bluetooth communication |
| CN207251617U (en) * | 2017-09-19 | 2018-04-17 | 深圳市前海小为科技有限公司 | A kind of automobile Bluetooth interconnect device |
-
2019
- 2019-06-11 CN CN201910502384.XA patent/CN112073953A/en active Pending
- 2019-08-09 WO PCT/CN2019/100061 patent/WO2020248354A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113872704A (en) * | 2021-09-26 | 2021-12-31 | 深圳市芯中芯科技有限公司 | General Bluetooth module production test system and method based on small program |
| CN114844735B (en) * | 2022-03-28 | 2023-10-27 | 海信视像科技股份有限公司 | Display equipment and voice forwarding method |
Also Published As
| Publication number | Publication date |
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| WO2020248354A1 (en) | 2020-12-17 |
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