CN112492433B - Charging box, wireless earphone and wireless earphone charging system - Google Patents
Charging box, wireless earphone and wireless earphone charging system Download PDFInfo
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- CN112492433B CN112492433B CN201910862104.6A CN201910862104A CN112492433B CN 112492433 B CN112492433 B CN 112492433B CN 201910862104 A CN201910862104 A CN 201910862104A CN 112492433 B CN112492433 B CN 112492433B
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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
- 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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/10—Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups
- H04R2201/105—Manufacture of mono- or stereophonic headphone components
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- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The embodiment of the application discloses a charging box, a wireless earphone and a wireless earphone charging system, wherein the charging box comprises: the chip system comprises a UART and an MCU, wherein the MCU is connected with the UART, a signal receiving port of the UART is connected with a first selection end of the first switch, and a signal transmitting port of the UART is connected with a second selection end of the first switch; the common end of the first switch is connected with the first selection end of the second switch, the charging port is connected with the second selection end of the second switch, the common end of the second switch is connected with the first electrode, and the second electrode is grounded; the MCU is used for controlling the first switch to switch between a data receiving function and a data sending function and controlling the second switch to switch between a data communication mode and a charging mode. By adopting the application, the charging box has simple structure and convenient function switching.
Description
Technical Field
The present application relates to the field of electronic technologies, and in particular, to a charging box, a wireless headset, and a wireless headset charging system.
Background
With the popularization of wireless headphones, the demands of wireless headphones and charging boxes for charging wireless headphones are increasing. Not only is the charging box required to charge the wireless headset, but also both are required to communicate. In order to make the appearance of the charging box succinct and attractive and save resources, a double-thimble structural design is mostly adopted in the market at present.
In the structural design of the double ejector pins, the two ejector pins are respectively an anode and a cathode, the structure determines that the communication mode of the charging box and the earphone is single-wire, and the charging wire and the communication wire are required to be shared. In fact, however, the charging cartridge of this design has only a charging function and does not have a function of communicating with the earphone.
However, if three or more ejector pins are adopted, the structure is extremely complex, the appearance is not simple and attractive, and the user experience is reduced. How to adopt the structural design of two thimble to the box that charges, keep under the pleasing to the eye prerequisite of product, can realize charging box and earphone's two-way communication function again, improve the experience of user's product use and feel.
Disclosure of Invention
The embodiment of the application provides a charging box, a wireless earphone and a wireless earphone charging system.
In a first aspect, an embodiment of the present application provides a charging box, including a chip system, a first switch, a second switch, a first electrode, a second electrode, and a charging port, where the chip system includes a universal asynchronous receiver transmitter UART and a micro control unit MCU,
the MCU is connected with the UART, a signal receiving port of the UART is connected with a first selection end of the first switch, a signal transmitting port of the UART is connected with a second selection end of the first switch, a public end of the first switch is connected with a first selection end of the second switch, a charging port is connected with a second selection end of the second switch, a public end of the second switch is connected with the first electrode, the second electrode is grounded, a first signal port of the MCU is connected with a control port of the first switch, and a second signal port of the MCU is connected with a control port of the second switch;
the MCU is used for sending a receiving and transmitting switching signal to the first switch so as to control the first switch to switch between a data receiving function and a data transmitting function, and is used for sending a mode switching signal to the second switch so as to control the second switch to switch between a data communication mode and a charging mode under the condition that the first switch is switched to the data receiving function.
It can be seen that the communication function of the charging box can be realized through the connection of the MCU and the UART in the embodiment of the application; the MCU can realize the switching of the data receiving and transmitting functions of the charging box through the first switch by using the two single-pole double-throw switches; the switching of the charging cartridge mode can be achieved by the second switch. In addition, the public end of the second switch is connected with the first electrode through a single bus VBUS, and data exchange with other devices is realized through the first electrode, so that multiplexing of a communication function and a charging function is realized. Namely, the charging box realizes the switching of a data communication mode and a charging mode and the switching of a data receiving function and a data transmitting function through a single bus VBUS. Moreover, the single-wire communication is realized based on the UART of the hardware, and compared with the I/O simulation, the software development difficulty is reduced. The structure is simple and beautiful, and the operation is convenient.
In a second aspect, the embodiment of the application also provides a wireless earphone, which comprises a chip system, a first switch, a second switch, a synchronous switching circuit, a first stage, a second stage and a charging port, wherein the chip system comprises a universal asynchronous receiver-transmitter UART and a micro control unit MCU,
the MCU is connected with the UART, a signal receiving port of the UART is connected with a first selection end of the second switch, a signal transmitting port of the UART is connected with a second selection end of the second switch, a public end of the second switch is connected with a first selection end of the first switch, a second selection end of the first switch is connected with the charging port, a public end of the first switch is connected with the first electrode, the second electrode is grounded, and a signal control port of the MCU is connected with a signal receiving port of the second switch;
one end of the synchronous switching circuit is connected with the first electrode, and the other end of the synchronous switching circuit is connected with the signal receiving port of the first switch.
The MCU is used for controlling the second switch to switch the data receiving function and the data sending function of the wireless earphone.
In a third aspect, an embodiment of the present application provides a wireless headset charging system, including the charging box and the wireless headset.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1-a is a schematic structural diagram of a charging box according to an embodiment of the present application;
fig. 1-B is a schematic circuit diagram of a charging box according to an embodiment of the present application;
fig. 2-a is a schematic structural diagram of a wireless earphone according to an embodiment of the present application;
fig. 2-B is a schematic circuit diagram of a wireless earphone according to an embodiment of the present application;
fig. 3-a is a schematic structural diagram of a wireless headset charging system according to an embodiment of the present application;
fig. 3-B is a schematic circuit diagram of a wireless headset charging system according to an embodiment of the present application;
fig. 3-C is an information interaction schematic diagram of a wireless headset charging system according to an embodiment of the present application;
fig. 4-a is a schematic diagram of a communication network topology of a wireless headset charging system according to an embodiment of the present application;
fig. 4-B is a schematic diagram of another communication network topology of a wireless headset charging system according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The terms first, second and the like in the description and in the claims and in the above-described figures are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
The charging box of the existing wireless earphone comprises two ejector pins, three ejector pins and five ejector pins. But the more the thimble, the more structurally cumbersome. Therefore, the earphone produced by many wireless earphone manufacturers adopts the structural design of double ejector pins. In the structural design of the double ejector pins, the two ejector pins are respectively an anode and a cathode, the structure determines that the communication mode of the charging box and the earphone is single-wire, and the charging wire and the communication wire are required to be shared. In fact, however, the charging cartridge of this design has only a charging function and does not have a function of communicating with the earphone.
However, if three or more ejector pins are adopted, the structure is extremely complex, the appearance is not simple and attractive, and the user experience is reduced. How to adopt the structural design of two thimble to the box that charges, keep under the pleasing to the eye prerequisite of product, can realize charging box and earphone's two-way communication function again, improve the experience of user's product use and feel.
In view of the above problems, an embodiment of the present application provides a charging box, a wireless headset and a charging device for the wireless headset. The following detailed description refers to the accompanying drawings.
The embodiment of the application provides a charging box. First, please refer to the schematic structure of the charging box shown in fig. 1-a, which is a charging box of a dual wireless earphone and is a dual-thimble structure design.
Next, referring to fig. 1-B, fig. 1-B is a schematic circuit diagram illustrating a design of the charging box shown in fig. 1-a according to an embodiment of the present application.
In the embodiment of the present application, as shown in fig. 1-B, the circuit structure of the charging box 100 includes a charging port 101, a chip system 102, and a first Switch 103, i.e. Switch1; a second Switch 104, switch2; a first electrode 105 and a second electrode 106, namely Pogo pin in the figure. The system on chip 102 may further include a universal asynchronous receiver transmitter UART1021, and a micro control unit MCU1022.
The MCU1022 is connected to the UART1021, a signal receiving port of the UART1021 is connected to a first selection end of the first switch, a signal transmitting port of the UART1021 is connected to a second selection end of the first switch, a common end of the first switch is connected to the first selection end of the second switch, a charging port is connected to the second selection end of the second switch, a common end of the second switch is connected to the first electrode, the second electrode is grounded, a first signal port of the MCU1022 is connected to a control port of the first switch, a second signal port of the MCU1022 is connected to a control port of the second switch, and the signal control port is I/O pin in fig. 1-B.
The MCU10122 is configured to send a transmit-receive switching signal to the first switch to control the first switch to switch between a data receiving function and a data transmitting function, and to send a mode switching signal to the second switch to control the second switch to switch between a data communication mode and a charging mode.
The MCU1022 is a micro control unit (Microcontroller Unit, MCU), also called a single-chip microcomputer, commonly called a single-chip microcomputer. The MCU1022 appropriately reduces the frequency and specification of the CPU (Central Process Unit), and integrates peripheral interfaces such as memory (memory), counter (Timer), USB, A/D conversion, UART, PLC, DMA, and the like, and even LCD driving circuits on a single chip to form a chip-level computer for different application occasions to perform different combination control. The method is applied to a plurality of electronic products.
The UART1011 is a data communication protocol standard, and in one possible embodiment, it has two data communication lines, one UART receive data line (RXD), shown in FIG. 1-B; one UART transmit data line (TXD), RXD shown in fig. 1-B. The two lines are combined to realize the communication function of the charging box. The chip system is provided with UART, and the UART bottom layer protocol is realized on hardware without software realization.
It can be seen that, in the embodiment of the present application, the connection between the MCU1022 and the UART1011 can implement the communication function of the charging box; the MCU1022 can realize the switching of the data receiving and transmitting functions of the charging box through the first switch 103 by using two single-pole double-throw switches; switching of the charging cartridge mode can be achieved by the second switch 104. In addition, the common end of the second switch 104 is connected with the first electrode 105 through a single bus VBUS, and data exchange with other devices is realized through the first electrode 105, so that multiplexing of a communication function and a charging function is realized. Namely, the charging box realizes the switching of a data communication mode and a charging mode and the switching of a data receiving function and a data transmitting function through a single bus VBUS. Moreover, the single-wire communication is realized based on the UART of the hardware, and compared with the I/O simulation, the software development difficulty is reduced. The structure is simple and beautiful, and the operation is convenient.
In a possible example, the charging port is directly connected to the MCU1022, and the MCU1022 is directly connected to the second selection terminal of the second switch.
It may be understood that if one end of the charging port of the charging box is connected to the mains supply and the other end is connected to the MCU1022, the MCU1022 processes the mains supply, which may include converting the mains supply into a rated voltage, a rated power or a rated current, filtering, storing charges, and the like. The MCU1022 is directly connected to the second selection end of the second switch 106, and the common end of the second switch 106 is connected to the first electrode 105, so as to provide a charging circuit capable of charging the wireless earphone.
In this example, the MCU1022 directly connects the charging port with the second switch 106, so that the structure is simple and the production cost is saved.
In one possible example, the chip system 102 further includes a charge processing module 1023, the charge processing module 1023 including one or more of: the charging processing module comprises a plurality of charging processing modules, wherein the charging processing modules are connected in series; the charging port is directly connected to the MCU1022, the MCU1022 is connected to the charging processing module 1023, and the charging processing module 1023 is connected to the second selection end of the second switch 104.
It may be understood that if one end of the charging port of the charging box is connected to the mains supply and the other end is connected to the MCU1022, the MCU1022 is connected to the charging processing module 1023, and the charging processing module 1023 processes the mains supply, which may include converting the mains supply into a rated voltage, a rated power or a rated current, filtering, storing charges, and the like. The charging processing module 1023 is directly connected to the second selection end of the second switch 106, and the common end of the second switch 106 is connected to the first electrode 105, so as to provide a charging circuit capable of charging the wireless earphone.
It can be seen that, in this example, the chip system 102 further includes a charging processing module 1023, and the charging processing module 1023 processes the commercial power, so that the safety of the charging box circuit and the processing effect on the commercial power can be improved. And the MCU1022 is connected with the charge processing module 1023, so that the charge processing module 1023 is convenient to manage.
In one possible example, the chip system 102 further includes a charge processing module 1023, the charge processing module 1023 including one or more of: the charging processing module comprises a plurality of charging processing modules, wherein the charging processing modules are connected in series; the charging port is directly connected to the charging processing module 1023, and the charging processing module 1023 is connected to the second selection end of the second switch 104.
It may be understood that if one end of the charging port of the charging box is connected to the mains supply and the other end is connected to the charging processing module 1023, the charging processing module 1023 processes the mains supply, where the processing may include converting the mains supply into a rated voltage, a rated power or a rated current, filtering, storing charges, and the like. The charging processing module 1023 is directly connected to the second selection end of the second switch 106, and the common end of the second switch 106 is connected to the first electrode 105, so as to provide a charging circuit capable of charging the wireless earphone.
It can be seen that, in this example, the chip system 102 further includes a charging processing module 1023, and the charging processing module 1023 processes the commercial power, so that the safety of the charging box circuit and the processing effect on the commercial power can be improved. And the charging port is directly connected with the charging processing module 1023, so that the circuit constitution is simpler.
In one possible example, the physical form of the first electrode and the second electrode is a thimble form.
It is understood that the metal contacts in the charging cartridge 100, i.e., the first electrode 105 of the charging cartridge and the second electrode 106 of the charging cartridge, are in the form of pins Pogo Pin. The most common in the market is a double thimble, and the two thimbles are respectively a positive electrode and a negative electrode. The design can meet the requirement of TWS earphone charging, and is used for conveying the electric quantity of the battery compartment of the charging box to the earphone.
Therefore, in the example, the design of the double ejector pins is simple and attractive, and the requirements of most users can be better met.
The embodiment of the application also provides a wireless earphone. Please refer to the schematic structure of the wireless earphone shown in fig. 2-a, which is a dual-thimble structure design matched with the charging box.
The wireless earphone is replaced by electric wave, and is connected from the audio outlet of the terminal to the transmitting end, and then the transmitting end sends the electric wave to the earphone of the receiving end, and the receiving end is a radio. There are three known types of wireless headphones: the first is Bluetooth earphone, the second is infrared earphone, and the third is 2.4G.
The wireless headset referred to in embodiments of the present application may be a true wireless stereo (True Wireless Stereo, TWS) headset. Compared with the traditional wired earphone, the TWS earphone adopts Bluetooth connection and transmission, and is small in size, good in tone quality and rich in functions. The left earphone and the right earphone of the TWS earphone are independent of each other and are not connected through a cable, and wireless separation of left and right channels can be achieved.
Next, referring to fig. 2-B, fig. 2-B is a schematic circuit diagram of the wireless earphone shown in fig. 2-a according to an embodiment of the present application.
In the embodiment of the present application, as shown in fig. 2-B, the circuit structure of the wireless headset 200 includes a charging port 201, a chip system 202, and a first Switch 203, i.e. Switch1; a second Switch 204, switch2. A first electrode 205, a second electrode 206, namely Pogo pin; and a synchronous switching circuit 207. The system-on-chip 202 may further include a universal asynchronous receiver transmitter UART2021, and a micro control unit MCU2022.
The MCU2022 is connected with the UART2021, a signal receiving port of the UART2021 is connected with a first selecting end of the second switch, a signal transmitting port of the UART2021 is connected with a second selecting end of the second switch, a public end of the second switch is connected with a first selecting end of the first switch, a second selecting end of the first switch is connected with the charging port, a public end of the first switch is connected with a first electrode, the second electrode is grounded, and a signal control port of the MCU2022 is connected with a signal receiving port of the second switch;
one end of the synchronous switching circuit is connected with the first electrode, and the other end of the synchronous switching circuit is connected with the signal receiving port of the first switch;
the MCU2022 is configured to control a second switch to switch a data receiving function and a data transmitting function of the wireless headset.
Wherein the signal control port of the MCU2022 is connected to the signal receiving port of the second switch. The MCU2022 is configured to control a second switch to switch a data receiving function and a data transmitting function of the wireless headset. It is understood that the signal control port of the MCU2022 is a pin I/O of the MCU2022. I is the meaning of input and O is the meaning of output. The I/O pins are the input/output pins of the MCU2022. Mainly a port for exchanging data with external equipment, and has the capability of inputting and outputting.
The UART2011 is a standard data communication protocol, and in one possible embodiment, has two data communication lines, one UART receiving data line (RXD), i.e., the RXD shown in fig. 2-B; one UART transmit data line (TXD), RXD shown in fig. 2-B. The two lines are combined to realize the communication function of the charging box. The chip system is provided with UART, and the UART bottom layer protocol is realized on hardware without software realization.
As can be seen, the wireless earphone 200 is enabled to realize mode switching by the synchronization circuit 207 and the second switch 204; the MCU2022 and the first switch can realize the receiving and transmitting switching of the wireless earphone; in short, the wireless headset realizes the switching of the data communication mode and the charging mode and the switching of the data receiving function and the data transmitting function through one single bus VBUS. The structure is simple and beautiful, and the operation is convenient.
In a possible example, the synchronous switching circuit 207 is configured to control the first switch to switch between the communication mode and the charging mode.
Specifically, the synchronous switching circuit 207 is a circuit capable of receiving a mode control signal, and when the synchronous circuit 207 receives the mode control signal, the synchronous circuit controls the second switch 204 of the wireless earphone to switch between the data communication mode and the charging mode. The mode control signal may be transmitted by either the wireless headset 200 or the first electrode 205 of the wireless headset 200.
It can be seen that the mode switching of the wireless earphone can be achieved by the synchronous switching circuit 207, and the mode switching synchronization with the charging box is achieved according to different sources of the mode control signal.
In one possible example, the physical form of the first electrode and the second electrode is a thimble form.
Specifically, the metal contacts in the wireless headset 200, i.e., the first electrode 205 of the wireless headset 200 and the second electrode 206 of the wireless headset 200, are in the form of a Pin. The most common in the market is a double thimble, and the two thimbles are respectively a positive electrode and a negative electrode. The design matches the structural design of the charging box 100 in the embodiment of the application, can meet the charging requirement of the wireless earphone, and is used for receiving the electric quantity transmission of the battery compartment of the charging box.
Therefore, in the example, the design of the double ejector pins is simple and attractive, and the requirements of most users can be better met.
In one possible example, the wireless headset includes a first headset and a second headset, the first headset being internally configured the same as or similar to the second headset.
Specifically, it may be understood that the first earphone and the second earphone included in the wireless earphone in the embodiment of the present application may be a left wireless earphone and a right wireless earphone, where the shape structures of the first earphone and the second earphone may be the same or similar as those shown in fig. 2-a, and may also have obvious differences. The internal circuit structure may be substantially identical or symmetrical with respect to the circuit structure design and design principle shown in fig. 2-B. It can be seen that in the embodiment of the present application, the wireless earphone of the dual earphone is configured, so that the user can use both wireless earphone and one wireless earphone separately. More convenient for the user to use.
The embodiment of the present application further provides a wireless headset charging system 300 as shown in fig. 3-a, including a charging box 301 as described above, and a right headset 302 and a left headset 303 included in the wireless headset as described above. The left earphone and the right earphone are wireless earphones. The three are connected through a single bus VBUS.
The following describes a communication process and a charging process of the wireless headset charging system 300 in detail with reference to a schematic circuit structure of the wireless headset charging system 300 shown in fig. 3-B and a schematic information interaction diagram of the wireless headset charging system 300 shown in fig. 3-C.
First, please refer to the circuit structure diagram of the wireless headset charging system shown in fig. 3-B. Since the internal circuit structures of the left wireless earphone and the right wireless earphone are the same, fig. 3-B shows the circuit connection relationship between the charging box and any earphone, and the specific connection relationship can be seen from the circuit structure of the charging box and the circuit structure of the wireless earphone. The difference between the charging box and the wireless earphone is that in the embodiment of the application, four switches are in the form of serial numbers.
Next, referring to fig. 3-C, a schematic diagram of wireless headset charging system information interaction is shown.
In one possible embodiment, since the internal circuit structures of the left wireless earphone and the right wireless earphone are the same, the following steps may be included, but are not limited to, taking the information interaction between the charging box and any one of the wireless earphones as shown in fig. 3-C:
301. the charging cartridge transmits a mode switching signal.
Specifically, it may be understood that the initial states of the charging box and the wireless earphone are default charging states, that is, the two wireless earphones are put into the charging box, and any one wireless earphone is taken as an example, and the wireless earphone is charged through a circuit as shown in fig. 3-B. In one embodiment, the charging port of the charging box is directly connected to the MCU, and the MCU is directly connected to the second selection end of the second switch. The public end of the second switch of the charging box is connected with the first electrode of the charging box, the first electrode of the charging box is connected with the first electrode of the wireless earphone, the first electrode of the wireless earphone is connected with the public end of the third switch, and the public end of the third switch is connected with the charging port of the wireless earphone, so that the wireless earphone is charged.
Charging the other wireless headset may also be referred to above.
Specifically, it may be understood that the MCU sends a mode switching signal to the second switch through the second signal port, so as to control the second switch to switch the charging mode to the data communication mode. At this time, the common terminal of the second switch is connected to the common terminal of the first switch through the first selection terminal. The public end of the second switch is connected with the first electrode of the charging box, and the first electrode of the charging box is connected with the first electrode of the wireless earphone. One end of a synchronous switching circuit of the wireless earphone is connected with the first electrode, and the other end of the synchronous switching circuit is connected with a signal receiving port of the third switch.
Therefore, the synchronous switching circuit of the wireless earphone controls the third switch to switch the mode of the wireless earphone from the charging mode to the communication mode.
302. And transmitting a receiving and transmitting switching signal to the first switch, wherein the receiving and transmitting switching signal is used for controlling the first switch to switch a data receiving function and a data transmitting function.
In a possible embodiment, the micro control unit MCU of the charging box is connected to the control port of the first switch through a first signal port, and is configured to send a transceiver switching signal to the first switch, where the transceiver switching signal is configured to control the first switch to switch the data receiving function to the data sending function. That is, the common terminal of the first switch is connected to the signal transmitting port of the UART.
303. And calling the UART to send an operation instruction.
In one possible embodiment, it may be understood that after the first switch switches the data receiving function to the data transmitting function, the MCU invokes the UART transmitting operation instruction connected thereto.
The operation instructions comprise control instructions and/or acquisition instructions, wherein the control instructions are used for controlling the two wireless earphones to pair, reset, restore factory settings, OTA upgrade and other instructions; the acquisition instruction is used for acquiring characteristic information of the wireless earphone, and the characteristic information comprises information such as a version number and battery power of the wireless earphone. The OTA upgrade instruction is an over-the-air technology upgrade instruction. The over-the-air technology (Over the Air Technology, OTA) is a technology that remotely manages SIM card data and applications over the air interface of mobile communications (GSM or CDMA).
304. And acquiring feedback information according to the operation instruction.
In a possible example, after the wireless earphone receives the operation instruction, if the operation instruction is the control instruction, the wireless earphone is paired with another wireless earphone according to the control instruction and a preset step, and the pairing mode may be matching through bluetooth, or when the two wireless earphones are connected to the same WiFi communication network, the wireless earphone is automatically connected to the other party. And the operations of resetting, restoring factory setting, OTA upgrading and the like can be executed according to preset steps.
And if the operation instruction is the acquisition instruction, the wireless earphone acquires characteristic information according to the acquisition instruction, wherein the characteristic information comprises information such as a version number and battery power of the wireless earphone. And processing the characteristic information and the completion condition of the control instruction to obtain feedback information.
305. And transmitting a receiving and transmitting switching signal to the fourth switch, wherein the receiving and transmitting switching signal is used for controlling the fourth switch to switch the data receiving function to the data transmitting function.
In one possible embodiment, after the feedback information is obtained, the MCU of the wireless earphone sends a transceiver switching signal to the signal receiving port of the fourth switch through the signal control port, where the transceiver switching signal is used to control the fourth switch to switch the data receiving function of the wireless earphone to the data sending function.
It will be appreciated that, to simplify the operation flow, either the wireless headset or the charging box is in a data receiving functional state by default. And whether the wireless earphone or the charging box finishes data transmission, the MCU of the charging box can send a receiving and transmitting switching signal to the first switch, and the MCU of the wireless earphone can send a receiving and transmitting switching signal to the fourth switch, so that the wireless earphone and the charging box are in a data receiving function state again.
306. And calling the UART to send feedback information.
It will be understood that after the wireless earphone obtains the feedback information and after the data receiving function has been switched to the data transmitting function, the UART is called back to transmit the feedback information. As described in step 304 above, the feedback information is characteristic information of the wireless earphone and/or feedback of the completion of the control command, etc.
307. And processing the feedback information.
It can be understood that after the operation instruction occurs for the first time, the MCU of the charging box sends a transmit-receive switching signal to the first switch, and the common end of the first switch is connected with the signal receiving port through the first selection end of the first switch, so that the charging box is in a data receiving functional state again. After receiving the feedback information, the charging box processes the feedback information, wherein the processing includes storing important information, or executing the next operation according to the feedback information, such as sending a new operation instruction, or sending a mode switching signal, a receiving switching signal and the like.
As shown in fig. 3-a, the charging box and the left and right wireless earphone form a triangle communication structure, and a network for two-to-two communication can be constructed between the charging box and the left and right wireless earphone. Based on the communication structure and UART communication protocol, the following two network topologies can be flexibly built.
In one possible example, referring to fig. 4-a, fig. 4-a is a schematic diagram of a communication network topology with one master and two slaves according to an embodiment of the present application.
Specifically, the charging box is a Master, namely a host role; the wireless earphone is Slave, namely the role of Slave. The charging box serves as a master role in communication, the dual-wireless earphone serves as a slave role in communication, and data communication is initiated by the master. The communication interaction logic of the master machine and the slave machine can be as shown in the above figure 3-C, the charging box is started to switch to a communication state as a master machine end, the earphone is synchronously switched to the communication state as a slave machine end and is in a data receiving state, and the master machine end waits for issuing instruction operation instructions, wherein the operation instructions comprise control instructions, acquisition instructions and the like. The host computer issues a control instruction, and the slave computer responds to the state; the host issues an acquisition instruction, and the slave responds to the inquiry result. Because the slave and the slave cannot directly interact data, the left and right wireless earphone cannot directly communicate under the communication structure, and the communication structure must be transferred through the charging box, namely, after the charging box acquires feedback information of one earphone, the feedback information is transmitted to the other earphone.
In a possible example, please refer to fig. 4-B, fig. 4-B is a schematic diagram of a communication network topology structure with one master and two slaves, but the charging box and the right wireless headset can be switched between master and slave. In other embodiments, the charging box and the left wireless earphone can be switched in a master-slave mode. The charging box and the right wireless earphone can be switched between the master state and the slave state.
Specifically, a master slave and a slave of the charging box can be switched with a master wireless earphone and a slave of the right wireless earphone, namely, on the basis of the master slave and the slave, the logic of master-slave switching of the charging box and the right wireless earphone is increased, namely, when the left wireless earphone and the right wireless earphone need to exchange data, the charging box can authorize a host role to the right wireless earphone, so that the right wireless earphone can directly communicate with the left wireless earphone. It can be understood that the data exchange between the wireless earphones can be performed after the wireless connection by bluetooth, or the data exchange can be performed through the first electrode of the right wireless earphone and the first electrode of the left wireless earphone. And after the data exchange of the left wireless earphone and the right wireless earphone is completed, the host role is returned to the charging box. The charging box grants the host role to the right wireless earphone, and can control the connection relation of the switch in a control instruction mode to construct a communication link of the left wireless earphone and the right wireless earphone. The process can be called as a relay baton protocol, and when the left wireless earphone and the right wireless earphone need to communicate directly, the charging box can give the relay baton to the right wireless earphone, so that the right wireless earphone can execute a host relationship similar to the charging box, realize a data communication function with the left wireless earphone, for example, acquire the Bluetooth ID of the left wireless earphone, and pair with the other party. Or obtain version information, state information, or send instructions, etc. of the counterpart. In one possible embodiment, the left wireless headset may be any other wireless headset with a two-pin design and having communication functionality. The above-described communication procedure with the right earphone can be realized. For example, after the right wireless earphone is upgraded, an instruction can be sent to control the left wireless earphone to be upgraded, and the like.
In one possible embodiment, after the charging box sends an operation instruction to the wireless earphone, the wireless earphone may also send a query instruction to the charging box, so as to obtain state information of the charging box and electric quantity. And the wireless earphone can acquire the state information of the charging box in time for processing the charging box by voice broadcasting or displaying by the terminal connected with the wireless earphone. Such as charging in time, or checking the status of the charging cartridge, etc.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.
In the several embodiments provided by the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the wireless headset charging device are merely illustrative, for example, the communication process between the charging box and the wireless headset includes some steps that are not in sequence, but are expressed according to a logic, and the implementation process of the communication in the embodiments, or the related communication process, such as the communication process between the wireless headset and the charging box, the communication process between the wireless headset and the wireless headset, may also be derived by using the above examples.
The above disclosure is only a few examples of the present application, and it is not intended to limit the scope of the present application, but it is understood by those skilled in the art that all or a part of the above embodiments may be implemented and equivalents thereof may be modified according to the scope of the present application.
Claims (6)
1. A wireless earphone charging system is characterized by comprising a charging box and a wireless earphone;
the charging box comprises a first chip system, a first switch, a second switch, a first electrode, a second electrode and a first charging port, wherein the first chip system comprises a first universal asynchronous receiver transmitter UART and a first micro control unit MCU, the first MCU is connected with the first UART, a first signal receiving port of the first UART is connected with a first selection end of the first switch, a first signal transmitting port of the first UART is connected with a second selection end of the first switch, a public end of the first switch is connected with the first selection end of the second switch, the first charging port is connected with the second selection end of the second switch, a public end of the second switch is connected with the first electrode, the second electrode is grounded, a first signal port of the first MCU is connected with a control port of the first switch, and a second signal port of the first MCU is connected with a control port of the second switch;
the earphone comprises a second chip system, a third switch, a fourth switch, a synchronous switching circuit, a third electrode, a fourth electrode and a second charging port, wherein the second chip system comprises a second UART, a second MCU, the second MCU is connected with the second UART, a signal receiving port of the second UART is connected with a first selecting end of the fourth switch, a signal transmitting port of the second UART is connected with a second selecting end of the fourth switch, a public end of the fourth switch is connected with the first selecting end of the third switch, a second selecting end of the third switch is connected with the second charging port, a public end of the third switch is connected with the third electrode, the fourth electrode is grounded, and a signal control port of the second MCU is connected with a signal receiving port of the fourth switch; one end of the synchronous switching circuit is connected with the third electrode, and the other end of the synchronous switching circuit is connected with a signal receiving port of the third switch;
wherein the first electrode is connected with the third electrode; the second switch and the third switch start to be in a charging mode, and the first switch and the fourth switch start to be in a data receiving function state;
when the second switch and the third switch are in the charging mode, the first MCU is used for sending a mode switching signal to the second switch to control the second switch to execute a first target switching process, wherein the first target switching process refers to switching from the charging mode to a data communication mode; the method comprises the steps of,
when the second switch and the third switch are in the data communication mode, the first MCU is used for sending a mode switching signal to the second switch to control the second switch to execute a second target switching process, wherein the second target switching process is switched from the data communication mode to the charging mode, and a state change amount of the third electrode, namely a mode control signal, generated by the first target switching process or the second target switching process is transmitted to the synchronous switching circuit; the method comprises the steps of,
the synchronous switching circuit is used for controlling the third switch to be switched from the charging mode to the data communication mode based on the mode control signal, or controlling the third switch to be switched from the data communication mode to the charging mode based on the mode control signal.
2. The wireless headset charging system of claim 1, wherein the first charging port is directly connected to the first MCU, and the first MCU is directly connected to the second select terminal of the second switch.
3. The wireless headset charging system of claim 1, wherein the first chip system further comprises a charging processing module comprising one or more of: the charging processing module comprises a plurality of charging processing modules, wherein the charging processing modules are connected in series;
the first charging port is directly connected with the first MCU, the first MCU is connected with the charging processing module, and the charging processing module is connected with the second selection end of the second switch.
4. The wireless headset charging system of claim 1, wherein the first chip system further comprises a charging processing module comprising one or more of: the charging processing module comprises a plurality of charging processing modules, wherein the charging processing modules are connected in series;
the first charging port is directly connected with the charging processing module, and the charging processing module is connected with the second selection end of the second switch.
5. The wireless headset charging system of any of claims 1-4 wherein the physical form of the first electrode, the second electrode, the third electrode, and the fourth electrode are all thimble forms.
6. The wireless headset charging system of any of claims 1-4, wherein the wireless headset comprises a first headset or a second headset, the first headset being internally configured identically or symmetrically to the second headset.
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