CN114845195A - Communication circuit, charging bin, Bluetooth headset charging system and communication method - Google Patents
Communication circuit, charging bin, Bluetooth headset charging system and communication method Download PDFInfo
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- CN114845195A CN114845195A CN202210378031.5A CN202210378031A CN114845195A CN 114845195 A CN114845195 A CN 114845195A CN 202210378031 A CN202210378031 A CN 202210378031A CN 114845195 A CN114845195 A CN 114845195A
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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
- H04R1/1025—Accumulators or arrangements for charging
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00034—Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
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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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- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a communication circuit, a charging bin, a Bluetooth headset charging system and a communication method. The communication circuit is applied to a charging bin, the charging bin is used for providing charging voltage for the Bluetooth headset, the charging bin comprises a main controller, a charging module, a first spring pin and a second spring pin, the first spring pin is connected with the second spring pin, the main controller is used for generating a charging signal and a communication signal, the charging module is respectively connected with the main controller and the first spring pin, and the charging module is used for switching the output state of the charging voltage according to the charging signal; the communication circuit includes: the communication module is respectively connected with the main controller and the first spring pin, the communication module is used for switching the working state according to the communication signal, and the communication module is also used for acquiring the electric quantity of the Bluetooth headset when the working state is working. The embodiment of the application can realize the communication operation between the Bluetooth earphone and the charging bin under the condition that the number of pins is not increased.
Description
Technical Field
The invention relates to the technical field of Bluetooth earphones, in particular to a communication circuit, a charging bin, a Bluetooth earphone charging system and a communication method.
Background
At present, the bluetooth headset and the storehouse of charging between no communication function, the pogo pin (spring pin) in the storehouse of charging can only charge the operation to the bluetooth headset.
Therefore, in the related art, in order to implement communication between the bluetooth headset and the charging chamber to acquire information such as the power of the bluetooth headset, a plurality of pogo pins need to be designed in the charging chamber. However, the above approach increases the hardware cost of the charging bin.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a communication circuit, a charging bin, a Bluetooth headset charging system and a communication method, which can realize the communication operation between the Bluetooth headset and the charging bin under the condition that springs are not added.
According to the communication circuit of the embodiment of the first aspect of the present invention, the communication circuit is applied to a charging bin, the charging bin is used for providing a charging voltage for a bluetooth headset, the charging bin includes a main controller, a charging module, a first pogo pin and a second pogo pin, the first pogo pin is connected with the second pogo pin, the main controller is used for generating a charging signal and a communication signal, the charging module is respectively connected with the main controller and the first pogo pin, and the charging module is used for switching an output state of the charging voltage according to the charging signal;
The communication circuit includes:
the communication module is respectively connected with the main controller and the first spring needle, and is used for switching the working state according to the communication signal and acquiring the electric quantity of the Bluetooth headset when the working state is working.
The communication circuit according to the embodiment of the invention has at least the following beneficial effects: the working state is switched through the communication signal sent by the main controller, and when the communication module is switched to the working state representing work, the charging bin establishes a communication path with the Bluetooth headset through the first spring pin and the second spring pin, so that the electric quantity of the Bluetooth headset is obtained. Therefore, the communication circuit provided by the embodiment of the application avoids the communication between the charging bin and the Bluetooth headset in the related art by increasing the number of the spring pins, so that the hardware cost of the charging bin is reduced to a certain extent by the communication circuit provided by the embodiment of the application.
According to some embodiments of the invention, the communication module comprises:
the control unit is respectively connected with a first port of the main controller and the first spring needle and is used for generating a working signal according to the communication signal;
The signal sending unit is respectively connected with a second port of the main controller, the control unit and the second spring needle, and is used for switching to a sending state or a turn-off state according to the working signal and generating an enabling signal in the sending state;
the signal receiving unit is respectively connected with the control unit, a third port of the main controller, the signal sending unit and the second spring needle; the signal receiving unit is used for switching to a receiving state according to the working signal and the enabling signal, or the signal receiving unit is used for switching to a turn-off state according to the working signal; wherein the signal receiving unit is further configured to obtain the electric quantity in the receiving state.
According to some embodiments of the present invention, the signal sending unit includes a first tri-state output chip, a first port of the first tri-state output chip is connected to a second port of the main controller, the second port of the first tri-state output chip and a third port of the first tri-state output chip are both connected to ground, a fourth port of the first tri-state output chip is connected to the second pogo pin, and a fifth port of the first tri-state output chip is connected to the control unit;
The signal receiving unit comprises a second tri-state output chip, a first port of the second tri-state output chip is respectively connected with a fourth port of the first tri-state output chip and the second spring pin, a second port of the second tri-state output chip and a third port of the second tri-state output chip are both connected with a ground end, a fourth port of the second tri-state output chip is connected with a third port of the main controller, and a fifth port of the second tri-state output chip is connected with the control unit.
According to some embodiments of the invention, the control unit comprises:
the anode of the diode is connected with the first port of the main controller;
one end of the first resistor is connected with the cathode of the diode, and the other end of the first resistor is connected with the first spring pin;
one end of the second resistor is connected with the anode of the diode, and the other end of the second resistor is connected with the other end of the signal sending unit;
and one end of the capacitor is connected with the other end of the second resistor, and the other end of the capacitor is grounded.
A charging magazine according to an embodiment of the second aspect of the invention, comprises:
The communication circuit of the first aspect;
a master controller connected to the communication circuit;
and the charging module is connected with the main controller.
According to some embodiments of the invention, further comprising:
and the display module is connected with the main controller and is used for displaying the electric quantity.
According to some embodiments of the invention, the display module comprises at least one LED for performing a display operation according to the power.
A bluetooth headset charging system according to an embodiment of the third aspect of the present invention includes:
a Bluetooth headset;
the charging silo of a second aspect.
A communication method according to an embodiment of a fourth aspect of the present invention is applied to the bluetooth headset charging system as described in the third aspect, and the communication method includes:
the main controller generates a communication signal according to a preset timing signal;
the communication module sends an electric quantity acquisition request to the Bluetooth headset according to the communication signal;
the communication module acquires a frame returning signal returned by the Bluetooth headset according to the electric quantity acquisition request;
and the main controller obtains the electric quantity of the Bluetooth headset according to the frame returning signal.
According to some embodiments of the invention, further comprising:
the main controller generates a frame returning time length according to the frame returning signal and the communication signal;
and if the frame returning time length is greater than the preset time length, the main controller generates a charging signal.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The invention is further described with reference to the following figures and examples, in which:
FIG. 1 is a block diagram of a charging chamber according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of a communication module according to an embodiment of the invention;
FIG. 3 is another block diagram of a charging chamber according to an embodiment of the present invention;
fig. 4 is a block diagram of a charging system for bluetooth headsets according to an embodiment of the invention;
FIG. 5 is a flow chart illustrating a communication method according to an embodiment of the invention;
fig. 6 is another flow chart of the communication method according to the embodiment of the invention.
Reference numerals:
the charging device comprises a main controller 100, a charging module 200, a communication module 300, a control unit 310, a signal sending unit 320, a signal receiving unit 330, a first spring pin 400, a second spring pin 500 and a display module 600.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality is one or more, the meaning of a plurality is two or more, and the above, below, exceeding, etc. are understood as excluding the present numbers, and the above, below, within, etc. are understood as including the present numbers. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
In the description of the present invention, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Referring to fig. 1, an embodiment of the present application provides a communication circuit, which is applied to a charging bin. The storehouse of charging is used for providing the charging voltage for bluetooth headset, and the storehouse of charging includes main control unit 100, the module 200 that charges, first spring pin and second spring pin, and first spring pin is connected with the second spring pin, and main control unit 100 is used for generating charge signal and communication signal, and the module 200 that charges is connected with main control unit 100, first spring pin respectively, and the module 200 that charges is used for switching the output state of charging voltage according to the signal of charging. The communication circuit comprises a communication module 300, wherein the communication module 300 is respectively connected with the main controller 100 and the first spring pin, the communication module 300 is used for switching the working state according to the communication signal, and the communication module 300 is further used for acquiring the electric quantity of the Bluetooth headset when the working state is working.
Specifically, the communication circuit provided by the example of the present application is applied to a charging bin in a bluetooth headset charging system, the bluetooth headset charging system includes the charging bin and a bluetooth headset, an accommodating cavity for accommodating the bluetooth headset is provided inside the charging bin, and a pogo pin (including a first pogo pin and a second pogo pin) for performing a charging operation or a communication operation on the bluetooth headset. When detecting that the bluetooth headset is in the accommodating cavity, the main controller 100 generates a charging signal for controlling the charging module 200 to perform a charging operation on the bluetooth headset, and generates a communication signal for controlling the communication module 300 to suspend operation, for example: the main controller 100 controls the charging module 200 to output 5V charging voltage, and the bluetooth headset acquires the 5V charging voltage through the first spring pin and the second spring pin, thereby realizing charging operation. At this time, the communication module 300 suspends its operation when receiving the low-level communication signal, and the charging chamber and the bluetooth headset are in a communication disconnection state.
The main controller 100 generates a communication signal for controlling the charging chamber to perform a communication operation with the bluetooth headset according to preset conditions, for example: the preset condition is a timing signal, and when the timed duration is equal to the duration indicated by the timing signal, the main controller 100 generates a high-level communication signal. The communication module 300 switches the working state to work according to the high-level communication signal, so that the charging chamber and the bluetooth headset are in a communication access state. At this time, the main controller 100 sends an electric quantity obtaining request to the bluetooth headset through the communication module 300, the first pogo pin and the second pogo pin, and the bluetooth headset returns electric quantity through the first pogo pin and the second spring. It can be understood that, when the charging chamber is in a communication state with the bluetooth headset, the main controller 100 generates a charging signal for controlling the charging module 200 to suspend outputting the charging voltage, that is, controls the charging module 200 to suspend outputting the charging voltage of 5V to the first pogo pin and the second pogo pin, so that the bluetooth headset is switched from the charging state to the communication state.
The communication circuit provided by the embodiment of the application switches the working state through the communication signal sent by the main controller 100, and when the communication module 300 is switched to the working state representing the working state, the charging bin establishes a communication path with the bluetooth headset through the first spring pin and the second spring pin, so that the electric quantity of the bluetooth headset is acquired. Therefore, the communication circuit provided by the embodiment of the application avoids the communication between the charging bin and the Bluetooth headset in the related art by increasing the number of the spring pins, so that the hardware cost of the charging bin is reduced to a certain extent by the communication circuit provided by the embodiment of the application.
Referring to fig. 2, in some embodiments, the communication module includes a control unit 310, a signal transmitting unit 320, and a signal receiving unit 330. The control unit 310 is connected to the first port of the main controller and the first pogo pin 400, respectively, and the control unit 310 is configured to generate a working signal according to the communication signal. The signal sending unit 320 is connected to the second port of the main controller, the control unit 310 and the second pogo pin 500, respectively, the signal sending unit 320 is configured to switch to a sending state or an off state according to the working signal, and the signal sending unit 320 is further configured to generate an enable signal in the sending state. The signal receiving unit 330 is connected to the control unit 310, the third port of the main controller, the signal sending unit 320, and the second pogo pin 500, respectively, and the signal receiving unit 330 is configured to switch to a receiving state according to the working signal and the enable signal, or switch to an off state according to the working signal. The signal receiving unit 330 is further configured to obtain power in a receiving state.
Specifically, the first port of the host controller is a TO _ DATA port, the second port of the host controller is a TX0 port, and the third port of the host controller is an RX0 port. The master controller transmits a high-level communication signal or a low-level communication signal through the first port TO _ DATA, when the high-level communication signal is transmitted, the VCC _ L terminal of the control unit 310 outputs a high-level operation signal, the signal transmitting unit 320 switches TO a transmitting state according TO the high-level operation signal, and generates a corresponding enable signal according TO a signal transmitted by the second port TX0 of the master controller. At this time, the main controller sends an electric quantity obtaining request to the bluetooth headset through the second port TX0, the signal sending unit 320, the first pogo pin 400, and the second pogo pin 500, and the signal receiving unit 330 switches to a corresponding working state according to the enable signal and the high-level working signal, so as to obtain the electric quantity returned by the bluetooth headset through the first pogo pin 400 and the second pogo pin 500.
When a low-level communication signal is sent, the VCC _ L terminal of the control unit 310 outputs a low-level working signal, the signal sending unit 320 switches to the off state according to the low-level working signal, and similarly, the signal receiving unit 330 also switches to the off state according to the low-level working signal, and the charging bin and the bluetooth headset are in a communication disconnection state. It is understood that, at this time, the main controller may generate a charging signal for controlling the charging module to output a charging voltage of 5V to perform a charging operation on the bluetooth headset. When the charging bin determines that the charging current is smaller than the preset current according to the first spring pin 400 and the second spring pin 500, that is, when the bluetooth headset is fully charged, the main controller may further generate a charging signal for controlling the charging module to suspend outputting of a 5V charging voltage, so that the bluetooth headset enters a sleep state.
In some embodiments, the signal transmitting unit 320 includes a first tri-state output chip U1, and the signal receiving unit 330 includes a second tri-state output chip U2. The first port of the first tri-state output chip U1 is connected with the second port TX0 of the main controller, the second port of the first tri-state output chip U1 and the third port of the first tri-state output chip U1 are both connected with the ground, the fourth port of the first tri-state output chip U1 is connected with the second pogo pin 500, and the fifth port of the first tri-state output chip U1 is connected with the control unit 310. The first port of the second tri-state output chip U2 is connected to the fourth port of the first tri-state output chip U1 and the second pogo pin 500, the second port of the second tri-state output chip U2 and the third port of the second tri-state output chip U2 are both connected to ground, the fourth port of the second tri-state output chip U2 is connected to the third port RX0 of the main controller, and the fifth port of the second tri-state output chip U2 is connected to the control unit 310.
Specifically, a first port of the first tri-state output chip U1 is an OE terminal, a second port of the first tri-state output chip U1 is an a terminal, a third port of the first tri-state output chip U1 is a GND terminal, a fourth port of the first tri-state output chip U1 is a Y terminal, and a fifth port of the first tri-state output chip U1 is a VCC terminal. The first port of the second tri-state output chip U2 is an OE terminal, the second port of the second tri-state output chip U2 is an a terminal, the third port of the second tri-state output chip U2 is a GND terminal, the fourth port of the second tri-state output chip U2 is a Y terminal, and the fifth port of the second tri-state output chip U2 is a VCC terminal. When the first port TO _ DATA of the host controller outputs a high-level communication signal, the fifth port of the first tri-state output chip U1 and the fifth port of the second tri-state output chip U2 both operate when receiving the high-level communication signal. At this time, if the second port TX0 of the master controller outputs a high level signal, the level states of the first pogo pin 400 and the second pogo pin 500 will change following the change of the level state of the first output port TO _ DATA of the master controller; if the second port TX0 of the main controller outputs a low level signal, the first port of the second tri-state output chip U2 receives a low level enable signal output from the fourth port of the first tri-state output chip U1, and the first pogo pin 400 and the second pogo pin 500 are in a low level state. It is understood that, according to the preset communication protocol between the charging chamber and the bluetooth headset, the main controller may configure its second port TX0 to send a power acquisition request and configure its third port RX0 as a normal input port in any of the above-mentioned spring pin (including the first spring pin 400 and the second spring pin 500) level states, so as to prevent the charging chamber from receiving data. After the power acquisition request is sent, the main controller configures the second port TX0 as a push-pull output port, and configures the third port RX0 as a UART receiving port, so as to receive the power transmitted back from the bluetooth headset through the first pogo pin 400 and the second pogo pin 500.
In some embodiments, the control unit 310 includes a diode D1, a first resistor R1, a second resistor R2, and a capacitor C1. The anode of diode D1 is connected TO the first port TO _ DATA of the host controller. One end of a first resistor R1 is connected with the cathode of the diode D1, the other end of the first resistor R1 is connected with the first pogo pin 400, one end of a second resistor R2 is connected with the anode of the diode D1, and the other end of the second resistor R2 is connected with the fifth port of the first tri-state output chip. One end of the capacitor C1 is connected to the other end of the second resistor R2, and the other end of the capacitor C1 is grounded.
Referring to fig. 3, an embodiment of the present application further provides a charging bin, where the charging bin includes the communication circuit, the main controller, and the charging module described in any of the above embodiments.
It can be seen that, the contents in the foregoing communication circuit embodiment are all applicable to the embodiment of the present charging bin, the functions specifically implemented by the embodiment of the present charging bin are the same as those in the foregoing communication circuit embodiment, and the beneficial effects achieved by the embodiment of the present charging bin are also the same as those achieved by the foregoing communication circuit embodiment.
In some embodiments, the charging chamber further includes a display module 600, the display module 600 is connected to the main controller 100, and the display module 600 is used for displaying the amount of power. Specifically, the main controller 100 controls the display module 600 to display according to the power obtained by the signal receiving unit, so that the user can confirm the current power of the bluetooth headset or confirm the range of the current power.
In some embodiments, the display module 600 includes at least one LED, for example, the display module 600 includes four LEDs (including the LEDs 1 to the LEDs 4), when 75% < the electric quantity ≦ 100%, the LEDs 1 to 4 are all controlled to be in a lighting state by the main controller 100; when the electric quantity is more than 50% and less than or equal to 75%, the LEDs 1 to the LED3 are controlled to be in a lighting state by the main controller 100, and the LED4 is controlled to be in a extinguishing state by the main controller 100; when the electric quantity is more than 25% and less than or equal to 50%, the LED1 and the LED2 are both controlled to be in a lighting state by the main controller 100, and the LED3 and the LED4 are controlled to be in a extinguishing state by the main controller 100; when the electric quantity is more than 0% and less than or equal to 25%, the LED1 is controlled to be in a lighting state by the main controller 100, and the LEDs 2 to the LED4 are controlled to be in a turning-off state by the main controller 100.
Referring to fig. 4, an embodiment of the present application further provides a bluetooth headset charging system, which includes a bluetooth headset and a charging bin as described in any of the above embodiments.
It can be seen that, the contents in the above charging bin embodiments are all applicable to the embodiment of the bluetooth headset charging system, the functions specifically implemented by the embodiment of the bluetooth headset charging system are the same as those in the above charging bin embodiments, and the achieved beneficial effects are also the same as those achieved by the above charging bin embodiments.
Referring to fig. 5, an embodiment of the present application further provides a communication method, where the communication method is applied to the bluetooth headset charging system described in the foregoing embodiment. The communication method includes, but is not limited to, steps S510 to S540.
S510, the main controller generates a communication signal according to a preset timing signal;
s520, the communication module sends an electric quantity acquisition request to the Bluetooth headset according to the communication signal;
s530, the communication module acquires a frame returning signal returned by the Bluetooth headset according to the electric quantity acquisition request;
and S540, the main controller obtains the electric quantity of the Bluetooth headset according to the frame returning signal.
Specifically, when the Bluetooth headset is determined to be accommodated in the accommodating cavity of the charging chamber, the first port of the main controller outputs a low-level communication signal and outputs a charging signal for controlling the charging module to output 5V charging voltage, and at the moment, the Bluetooth headset performs charging operation through the first spring pin and the second spring pin. When the main controller determines that the charging current is smaller than the preset current through the first spring pin and the second spring pin, the main controller outputs a charging signal for controlling the charging module to suspend outputting of 5V charging voltage so as to control the Bluetooth headset to enter a dormant state.
In the above-described process, when the timed duration is equal to the duration indicated by the preset timing signal, the first port of the main controller outputs a high-level communication signal, and outputs a charging signal for controlling the charging module to suspend outputting the 5V charging voltage. At the moment, the Bluetooth headset and the charging bin are in a communication access state. The main controller sends an electric quantity acquisition request according to the method described in any of the above embodiments, and acquires a frame return signal returned by the bluetooth headset according to the electric quantity acquisition request. The main controller processes the frame returning signal to determine the current electric quantity of the Bluetooth headset.
It is understood that the master controller may also determine the range of the current power of the bluetooth headset to control the on/off states of the LEDs 1-4.
Referring to fig. 6, in some embodiments, the communication method further includes steps S610 to S620.
S610, the main controller generates frame returning time according to the frame returning signal and the communication signal;
and S620, if the frame returning time length is greater than the preset time length, the main controller generates a charging signal.
Specifically, the main controller determines the frame returning time of the bluetooth headset according to the frame returning signal and the high-level communication signal, and when the frame returning time is longer than the preset time, that is, the frame returning signal is received overtime, the main controller generates the low-level communication signal and generates a charging signal for controlling the charging module to output 5V charging voltage so as to charge the bluetooth headset.
It can be understood that, if the main controller still does not receive the frame signal after a certain period of time, the main controller generates a low-level communication signal and generates a charging signal for controlling the charging module to output a 5V charging voltage, so as to perform a charging operation on the bluetooth headset.
It can be understood that, when guaranteeing that the storehouse of charging and bluetooth headset are in the communication access state, display module's display effect is not influenced, and main control unit is before the communication signal of generation high level, and main control unit will control display module and keep current display state, waits to acquire bluetooth headset current electric quantity after, again according to the electric quantity update display module's that newly acquires display state.
In order to determine whether the frame return signal acquired by the main controller represents the latest electric quantity of the bluetooth headset, a serial number may be added to the frame return signal and the electric quantity acquisition request.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. Furthermore, the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.
Claims (10)
1. The communication circuit is applied to a charging bin, the charging bin is used for providing charging voltage for the Bluetooth headset, the charging bin comprises a main controller, a charging module, a first spring pin and a second spring pin, the first spring pin is connected with the second spring pin, the main controller is used for generating a charging signal and a communication signal, the charging module is respectively connected with the main controller and the first spring pin, and the charging module is used for switching the output state of the charging voltage according to the charging signal;
the communication circuit includes:
The communication module is respectively connected with the main controller and the first spring needle, and is used for switching the working state according to the communication signal and acquiring the electric quantity of the Bluetooth headset when the working state is working.
2. The communication circuit of claim 1, wherein the communication module comprises:
the control unit is respectively connected with a first port of the main controller and the first spring needle and is used for generating a working signal according to the communication signal;
the signal sending unit is respectively connected with a second port of the main controller, the control unit and the second spring needle, and is used for switching to a sending state or a turn-off state according to the working signal and generating an enabling signal in the sending state;
the signal receiving unit is respectively connected with the control unit, a third port of the main controller, the signal sending unit and the second spring needle; the signal receiving unit is used for switching to a receiving state according to the working signal and the enabling signal, or the signal receiving unit is used for switching to a turn-off state according to the working signal; wherein the signal receiving unit is further configured to obtain the electric quantity in the receiving state.
3. The communication circuit according to claim 2, wherein the signal sending unit comprises a first tri-state output chip, a first port of the first tri-state output chip is connected with a second port of the main controller, the second port of the first tri-state output chip and a third port of the first tri-state output chip are both connected with a ground terminal, a fourth port of the first tri-state output chip is connected with the second pogo pin, and a fifth port of the first tri-state output chip is connected with the control unit;
the signal receiving unit comprises a second tri-state output chip, a first port of the second tri-state output chip is respectively connected with a fourth port of the first tri-state output chip and the second spring pin, a second port of the second tri-state output chip and a third port of the second tri-state output chip are both connected with a ground end, a fourth port of the second tri-state output chip is connected with a third port of the main controller, and a fifth port of the second tri-state output chip is connected with the control unit.
4. A communication circuit according to claim 2 or 3, wherein the control unit comprises:
The anode of the diode is connected with the first port of the main controller;
one end of the first resistor is connected with the cathode of the diode, and the other end of the first resistor is connected with the first spring pin;
one end of the second resistor is connected with the anode of the diode, and the other end of the second resistor is connected with the other end of the signal sending unit;
and one end of the capacitor is connected with the other end of the second resistor, and the other end of the capacitor is grounded.
5. Storehouse of charging, its characterized in that includes:
the communication circuit of any one of claims 1 to 4;
a master controller connected to the communication circuit;
and the charging module is connected with the main controller.
6. The charging bin of claim 5, further comprising:
and the display module is connected with the main controller and is used for displaying the electric quantity.
7. The charging bin of claim 6, wherein the display module comprises at least one LED for performing display operations according to the charge.
8. Bluetooth headset charging system, its characterized in that includes:
a Bluetooth headset;
a charging magazine as claimed in any one of claims 5 to 7.
9. A communication method applied to the bluetooth headset charging system according to claim 8, the communication method comprising:
the main controller generates a communication signal according to a preset timing signal;
the communication module sends an electric quantity acquisition request to the Bluetooth headset according to the communication signal;
the communication module acquires a frame returning signal returned by the Bluetooth headset according to the electric quantity acquisition request;
and the main controller obtains the electric quantity of the Bluetooth headset according to the frame returning signal.
10. The communication method according to claim 9, further comprising:
the main controller generates a frame returning time length according to the frame returning signal and the communication signal;
and if the frame returning time length is greater than the preset time length, the main controller generates a charging signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210378031.5A CN114845195A (en) | 2022-04-12 | 2022-04-12 | Communication circuit, charging bin, Bluetooth headset charging system and communication method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115549266A (en) * | 2022-11-30 | 2022-12-30 | 广东新宝电器股份有限公司 | Charging control system and charging control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115549266A (en) * | 2022-11-30 | 2022-12-30 | 广东新宝电器股份有限公司 | Charging control system and charging control method |
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