CN112104945B - Communication method, charging box, wireless earphone and computer storage medium - Google Patents
Communication method, charging box, wireless earphone and computer storage medium Download PDFInfo
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- CN112104945B CN112104945B CN202011070827.1A CN202011070827A CN112104945B CN 112104945 B CN112104945 B CN 112104945B CN 202011070827 A CN202011070827 A CN 202011070827A CN 112104945 B CN112104945 B CN 112104945B
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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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
- H04W8/08—Mobility data transfer
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a communication method, which is characterized by being applied to a charging box and comprising the following steps: after the first contact of the charging box is connected with the second contact of the wireless headset, establishing a carrier communication channel based on the first contact and the second contact; modulating a first parameter of a carrier signal of the carrier communication channel according to data to be transmitted; and demodulating a second parameter of the carrier signal to obtain data sent by the wireless headset, wherein the first parameter is amplitude, the second parameter is at least one of frequency and phase, or the second parameter is amplitude, and the first parameter is at least one of frequency and phase. The invention also discloses a communication method, a charging box, a wireless earphone and a computer storage medium. The invention realizes full duplex communication between the charging box and the wireless earphone through a single contact, improves the data transmission rate and reduces the cost.
Description
Technical Field
The invention relates to the technical field of headset communication, in particular to a communication method, a charging box, a wireless headset and a computer storage medium.
Background
A charging box of a True Wireless Stereo (TWS) headset needs to communicate with left and right headsets independently to achieve better charging control and functional application in other scenarios.
In the prior art, the physical connection between the charging box and the earphone is often realized by adopting the butt joint between the contacts (Pogo pins). If half-duplex communication is realized through a single communication contact, namely the charging box and the earphone are only communicated through a single line, data can be transmitted in one direction only in the same time period, so that the data transmission rate is low; if the contacts are added to realize multi-line full duplex communication, the data transmission rate can be improved, but due to the increase of the number of the communication contacts, the complexity of the product structure is increased, and the manufacturing cost is increased, so that the existing communication mode cannot simultaneously take into account the high data transmission rate and the manufacturing cost.
The above is only for the purpose of assisting understanding of the technical solution of the present invention, and does not represent an admission that the above is the prior art.
Disclosure of Invention
The invention mainly aims to provide a communication method, a charging box, a wireless earphone and a computer storage medium, aiming at realizing full duplex communication between the charging box and the wireless earphone through a single contact, improving the data transmission rate and reducing the cost. .
To achieve the above object, the present invention provides a communication method applied to a charging box, the communication method including the steps of:
after the first contact of the charging box is connected with the second contact of the wireless headset, establishing a carrier communication channel based on the first contact and the second contact;
modulating a first parameter of a carrier signal of the carrier communication channel according to data to be transmitted;
and demodulating a second parameter of the carrier signal to obtain data sent by the wireless headset, wherein the first parameter is amplitude, the second parameter is at least one of frequency and phase, or the second parameter is amplitude, and the first parameter is at least one of frequency and phase.
Optionally, the communication method further includes:
when the wireless earphone is detected to be placed in the charging box, a modem and a carrier generator of the charging box are started, and after a first contact of the charging box is connected with a second contact of the wireless earphone, a carrier communication channel is established based on the first contact and the second contact;
and when the wireless earphone is detected to be taken out of the charging box, the modem and the carrier generator are turned off, wherein the modem is used for executing the step of modulating the first parameter of the carrier signal of the carrier communication channel according to the data to be transmitted and the step of demodulating the second parameter of the carrier signal, and the carrier generator is used for executing the step of establishing the carrier communication channel based on the first contact and the second contact.
Optionally, after the step of establishing a carrier communication channel based on the first contact and the second contact after the first contact of the charging box is connected with the second contact of the wireless headset, the method further includes:
acquiring the duration of the wireless earphone in the charging box;
when the duration reaches a first preset duration, turning off the modem and the carrier wave generator;
and after the modem and the carrier wave generator are closed, controlling the modem and the carrier wave generator to be started for a third preset time at intervals of a second preset time.
Optionally, when the state of the first contact is a charging state, the first contact is used for charging the wireless headset; when the state of the first contact is a communication state, the first contact is used for establishing a communication connection between the charging box and the wireless headset, and before the step of establishing a carrier communication channel based on the first contact and the second contact, the communication method further comprises:
after the first contact of the charging box is connected with the second contact of the wireless earphone, the wireless earphone is charged through the connection of the first contact and the second contact, so that the first contact is in a charging state;
when the first contact is in a charging state, if the fact that a communication requirement exists between the charging box and the wireless earphone is detected, the step of establishing a carrier communication channel based on the first contact and the second contact is executed, so that the first contact is in a communication state.
In addition, to achieve the above object, the present invention also provides a communication method applied to a wireless headset, the communication method including:
after a first contact of a charging box is connected with a second contact of the wireless headset and a carrier communication channel is established based on the first contact and the second contact, modulating a second parameter of a carrier signal of the carrier communication channel according to data to be sent;
and demodulating a first parameter of the carrier signal to obtain data sent by the charging box, wherein the first parameter is amplitude, the second parameter is at least one of frequency and phase, or the second parameter is amplitude, and the first parameter is at least one of frequency and phase.
Optionally, the communication method further includes:
when the wireless earphone is detected to be placed into the charging box, a modem of the wireless earphone is started, the first contact of the charging box is connected with the second contact of the wireless earphone, and a second parameter of a carrier signal of a carrier communication channel is modulated according to data to be sent after the carrier communication channel is established based on the first contact and the second contact;
and when detecting that the wireless earphone is taken out of the charging box, turning off the modem, wherein the modem is used for executing the step of modulating the second parameter of the carrier signal of the carrier communication channel according to the data to be transmitted and the step of demodulating the first parameter of the carrier signal.
Optionally, after the step of detecting that the wireless headset is placed in the charging box, the method further includes:
acquiring the duration of the wireless earphone in the charging box;
when the duration reaches a first preset duration, turning off the modem;
and after the modem is closed, controlling the modem to start for a third preset time at intervals of a second preset time.
Furthermore, in order to achieve the above object, the present invention also provides a charging box, which includes a first contact for connecting with a second contact of a wireless headset, and is configured to perform the communication method as described in any one of the above.
Further, to achieve the above object, the present invention also provides a wireless headset including a second contact for connecting with the first contact of the charging box, the wireless headset being configured to perform the communication method as described in any one of the above.
Further, to achieve the above object, the present invention also provides a computer storage medium having a communication program stored thereon, the communication program implementing the steps of the communication method as described in any one of the above when executed by a processor.
According to the communication method, the charging box, the wireless earphone and the computer storage medium, after a first contact of the charging box is connected with a second contact of the wireless earphone, a carrier communication channel is established on the basis of the first contact and the second contact by the charging box; modulating a first parameter of a carrier signal of the carrier communication channel according to data to be transmitted; and demodulating a second parameter of the carrier signal to obtain data sent by the wireless headset, wherein the first parameter is amplitude, the second parameter is at least one of frequency and phase, or the second parameter is amplitude, and the first parameter is at least one of frequency and phase. According to the invention, carrier communication is established between the charging box and the wireless earphone, and parameters of different dimensions of carrier signals are respectively adjusted when data are sent and received, so that the sent data and the received data are not interfered with each other, full duplex communication between the charging box and the wireless earphone can be realized through a single contact, and the cost is reduced while the data transmission rate is improved.
Drawings
Fig. 1 is a schematic diagram of a hardware architecture of a charging box related to the communication method of the present invention;
fig. 2 is a schematic diagram of a hardware architecture of a wireless headset related to the communication method of the present invention;
FIG. 3 is a flowchart illustrating a communication method according to an embodiment of the present invention;
FIG. 4 is a flowchart illustrating a communication method according to another embodiment of the present invention;
FIG. 5 is a flow chart illustrating a communication method according to another embodiment of the present invention;
fig. 6 is a schematic view of the charging box and connection to the wireless headset contacts of the present invention;
fig. 7 is another schematic view of the charging box of the present invention connected to the contacts of a wireless headset;
fig. 8 is a schematic view of the overall connection relationship between the charging box and the left earphone of the present invention;
FIG. 9 is a schematic waveform diagram of a carrier signal according to the present invention;
fig. 10 is a schematic diagram of the communication principle between the charging box and the wireless headset according to the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
The embodiment of the invention provides a solution, which is characterized in that carrier communication is established between a charging box and a wireless earphone, parameters of different dimensions of carrier signals are respectively adjusted when data are sent and received, so that the sent data and the received data are not interfered with each other, full-duplex communication between the charging box and the wireless earphone can be realized through a single contact, the data transmission rate is improved, and the cost is reduced.
As shown in fig. 1, fig. 1 is a schematic diagram of a hardware architecture of a charging box related to the communication method of the present invention, and a terminal according to an embodiment of the present invention is the charging box.
As shown in fig. 1, the terminal may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, a communication bus 1002. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may comprise an input unit and the optional user interface 1003 may also comprise a standard wired, wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface. The memory 1005 may be a high-speed RAM memory or a non-volatile memory (e.g., a magnetic disk memory). The memory 1005 may alternatively be a storage device separate from the processor 1001 described previously.
Those skilled in the art will appreciate that the terminal structure shown in fig. 1 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, a memory 1005, which is a kind of computer storage medium, may include therein a network communication module, a user interface module, and a communication program.
In the terminal shown in fig. 1, the processor 1001 may be configured to call up a communication program stored in the memory 1005 and perform the following operations:
after the first contact of the charging box is connected with the second contact of the wireless headset, establishing a carrier communication channel based on the first contact and the second contact;
modulating a first parameter of a carrier signal of the carrier communication channel according to data to be transmitted;
and demodulating a second parameter of the carrier signal to obtain data sent by the wireless headset, wherein the first parameter is amplitude, the second parameter is at least one of frequency and phase, or the second parameter is amplitude, and the first parameter is at least one of frequency and phase.
Further, the processor 1001 may call the communication program stored in the memory 1005, and also perform the following operations:
when the wireless earphone is detected to be placed in the charging box, a modem and a carrier generator of the charging box are started, and after a first contact of the charging box is connected with a second contact of the wireless earphone, a carrier communication channel is established based on the first contact and the second contact;
and when the wireless earphone is detected to be taken out of the charging box, the modem and the carrier generator are turned off, wherein the modem is used for executing the step of modulating the first parameter of the carrier signal of the carrier communication channel according to the data to be transmitted and the step of demodulating the second parameter of the carrier signal, and the carrier generator is used for executing the step of establishing the carrier communication channel based on the first contact and the second contact.
Further, the processor 1001 may call the communication program stored in the memory 1005, and also perform the following operations:
acquiring the duration of the wireless earphone in the charging box;
when the duration reaches a first preset duration, turning off the modem and the carrier wave generator;
and after the modem and the carrier wave generator are closed, controlling the modem and the carrier wave generator to start for a third preset time at intervals of a second preset time.
Further, the processor 1001 may call the communication program stored in the memory 1005, and further perform the following operations:
after the first contact of the charging box is connected with the second contact of the wireless earphone, the wireless earphone is charged through the connection of the first contact and the second contact, so that the first contact is in a charging state;
when the first contact is in a charging state, if the fact that a communication requirement exists between the charging box and the wireless earphone is detected, the step of establishing a carrier communication channel based on the first contact and the second contact is executed, so that the first contact is in a communication state.
As shown in fig. 2, fig. 2 is a schematic diagram of a hardware architecture of a wireless headset related to the communication method of the present invention, and the terminal according to the embodiment of the present invention is a wireless headset.
As shown in fig. 2, the terminal may include: a processor 2001 such as a CPU, a network interface 2004, a user interface 2003, a memory 2005, a communication bus 2002. The communication bus 2002 is used to implement connection communication between these components. The user interface 2003 may include an input unit, and the optional user interface 2003 may also include a standard wired interface, a wireless interface. The network interface 2004 may optionally include a standard wired interface, a wireless interface. Memory 2005 can be a high-speed RAM memory, or can be a non-volatile memory such as a disk memory. The memory 2005 may alternatively be a storage device separate from the aforementioned processor 2001.
Those skilled in the art will appreciate that the terminal structure shown in fig. 2 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 2, a network communication module, a user interface module, and a communication program may be included in the memory 2005 which is one type of computer storage medium.
In the terminal shown in fig. 2, the processor 2001 may be configured to call the communication program stored in the memory 2005 and perform the following operations:
after a first contact of a charging box is connected with a second contact of the wireless headset and a carrier communication channel is established based on the first contact and the second contact, modulating a second parameter of a carrier signal of the carrier communication channel according to data to be sent;
demodulating a first parameter of the carrier signal to obtain data sent by the charging box, wherein the first parameter is amplitude, the second parameter is at least one of frequency and phase, or the second parameter is amplitude, and the first parameter is at least one of frequency and phase.
Further, the processor 2001 may call the communication program stored in the memory 2005, and also perform the following operations:
when the wireless earphone is detected to be placed in the charging box, a modem of the wireless earphone is started, the first contact of the charging box is connected with the second contact of the wireless earphone, and after a carrier communication channel is established based on the first contact and the second contact, a second parameter of a carrier signal of the carrier communication channel is modulated according to data to be sent;
and when the wireless earphone is detected to be taken out of the charging box, the modem is turned off, wherein the modem is used for executing the step of modulating the second parameter of the carrier signal of the carrier communication channel according to the data to be transmitted and the step of demodulating the first parameter of the carrier signal.
Further, the processor 2001 may call the communication program stored in the memory 2005, and also perform the following operations:
acquiring the duration of the wireless earphone in the charging box;
when the duration reaches a first preset duration, turning off the modem;
and after the modem is closed, controlling the modem to start for a third preset time at intervals of a second preset time.
Fig. 6 is a schematic view of the charging box and the connection to the wireless headset contacts, as shown in fig. 6.
In fig. 6, the charging box, the left earphone of the wireless earphone, and the right earphone of the wireless earphone each include only three contacts, the charging box includes only the first communication contact 110, the first power contact 120, and the first ground contact 130, and the left earphone and the right earphone of the wireless earphone each include only the second communication contact 210, the second power contact 220, and the second ground contact 230. When the wireless headset is placed in the charging box, the first communication contact 110 of the charging box is connected with the second communication contact 210 of the wireless headset, forming a communication line Data, and used for communication between the charging box and the wireless headset. When wireless earphone placed in the box that charges, the first power contact 120 of the box that charges is connected with the second power contact 220 of wireless earphone, constitutes the power cord VCC, and the first ground contact 130 of the box that charges is connected with the second ground contact 230 of wireless earphone, constitutes earth connection GND, through power cord VCC and earth connection GND, realizes that wireless earphone carries out the purpose of charging through the box that charges.
Fig. 7 is another schematic view of the charging box being connected to the wireless headset contacts.
In fig. 7, the charging box, the left earphone of the wireless earphone, and the right earphone of the wireless earphone each include only two contacts, the charging box includes only the first power contact 120 and the first ground contact 130, and the left earphone and the right earphone of the wireless earphone each include only the second power contact 220 and the second ground contact 230. The first power contact 120 is connected with a power input device of the charging box, the power input device can be a battery or a power input interface, the power input interface receives electric quantity input by external equipment, the first power contact 120 is also connected with a communication interface of the charging box, the first power contact 120 comprises a charging state and a communication state, and when the state of the first power contact 120 is the charging state, the first power contact 120 is used for charging a wireless headset in the charging box; and the state of the first power contact 120 is a communication state, the first power contact 120 is used to establish a communication connection between the charging box and the headset.
For example, when the wireless headset is placed in the charging box, the first power contact 120 of the charging box is connected to the second power contact 220 of the wireless headset, and if the first power contact 120 is in a charging state, since the first power contact 120 is connected to a power source and the first power contact 120 is conducted with the second power contact 220, the second power contact 220 detects a voltage input. Optionally, the power supply provides the first power contact 120 with a voltage value of +5V when the first power contact 120 is in the charging state, to charge the headset in conduction with the first power contact 120 and the first ground contact 130.
For another example, when the wireless headset is placed in the charging box, the first power contact 120 of the charging box is connected to the second power contact 220 of the wireless headset, and if the first power contact 120 is in a communication state, since the first power contact 120 is connected to a power source, and the first power contact 120 is conducted to the second power contact 220, the second power contact 220 detects a voltage input. Alternatively, when the first power contact 120 is in the communication state, the power supply provides the first power contact 120 with a voltage value of +3.3V as the communication voltage value, and at this time, the charging box may call the communication interface connected to the first power contact 120 and perform communication based on the first power contact 120 and the wireless headset conducted with the charging box.
Referring to fig. 3, in an embodiment, the communication method is applied to a charging box, and the communication method includes the following steps:
step S10, after the first contact of the charging box is connected with the second contact of the wireless earphone, a carrier communication channel is established based on the first contact and the second contact;
in this embodiment, the embodiment terminal is a charging box.
The TWS earphone is also called as a TWS Bluetooth earphone, the TWS earphone does not need to be connected in a wired mode, the left earphone module and the right earphone module form a stereo system through Bluetooth, and the song listening effect, the song talking effect and the wearing effect are improved. Because the TWS headset has the problems of small battery capacity and short standby time, the TWS headset is generally used with a charging box. When the TWS headset is not in use, the TWS headset may be placed in a charging box for charging. The charging box can display the state of charge of the TWS headset, such as full charge, normal charge and low charge. The charging box can communicate with the earphone, and forced pairing, box opening and closing action, OTA upgrading and the like of the TWS earphone are achieved.
Optionally, after the wireless headset is placed in the charging box, because the contact of the wireless headset is arranged corresponding to the contact of the charging box, the first contact of the charging box is connected with the second contact of the corresponding wireless headset, so that a carrier communication channel can be established based on the first contact and the second contact, and carrier communication is realized.
Alternatively, as shown in fig. 6, when the charging box comprises only three contacts, the first contact is the first communication contact 110, correspondingly, the left and right earphones of the wireless earphone each comprise three contacts, and the second contact is the second communication contact 210. As shown in fig. 7, when the charging box only includes two contacts, the first contact is the first power contact 120, correspondingly, both the left earphone and the right earphone of the line earphone include two contacts, and the second contact is the second power contact 220, the states of the first power contact 120 and the second power contact 220 are switched to a communication state, and a carrier communication channel is established, so that communication between the charging box and the wireless earphone is realized.
Alternatively, when the carrier communication channel is established based on the first contact and the second contact, a carrier signal may be generated by the carrier generator, and the carrier communication channel may be established by the carrier signal. Wherein the carrier generator may be an oscillator. Optionally, the carrier generator is disposed in a charging box from which the carrier communication channel is actively established.
Alternatively, as shown in fig. 8, the charging box comprises a carrier generator, a modulator and a demodulator, wherein the modulator is configured to perform the step of modulating a first parameter of a carrier signal of a carrier communication channel according to data to be transmitted, the demodulator is configured to perform the step of demodulating a second parameter of the carrier signal, the modulator and the demodulator can be collectively referred to as a modem, and the carrier generator is configured to perform the step of establishing the carrier communication channel based on the first contact and the second contact. Optionally, when the charging box detects that the wireless earphone is placed in the charging box, the modem and the carrier generator of the charging box are turned on, and after the first contact of the charging box is connected with the second contact of the wireless earphone, a carrier communication channel is established based on the first contact and the second contact, so as to communicate between the charging box and the wireless earphone; and when the charging box detects that the wireless earphone is taken out of the charging box, the modem and the carrier wave generator are turned off so as to reduce the energy consumption of the charging box.
Optionally, when the carrier communication channel is established based on the first contact and the second contact, the duration of the wireless headset in the charging box may be further obtained, and if the duration reaches a first preset duration, it indicates that communication between the charging box and the wireless headset is temporarily not required, so that the modem and the carrier generator may be turned off, and the charging box may be controlled to enter the sleep mode, so as to reduce energy consumption of the charging box. After the charging box enters the sleep mode, the modem and the carrier wave generator are controlled to be started at intervals of a second preset time length, and the starting lasts for a third preset time length each time, so that necessary information exchange between the charging box and the wireless earphone is completed at regular time.
Step S20, according to the data to be sent, modulating the first parameter of the carrier signal of the carrier communication channel;
in this embodiment, if the charging box has data to be sent and needs to be sent to the wireless headset, the data to be sent may be represented by a change of a first parameter of a carrier signal according to a first parameter of the carrier signal in a data modulation carrier communication channel to be sent. The modulation process may be implemented by a modem or a separate modulator. After the first parameter of the carrier signal changes, the wireless earphone can also detect the change through the second contact, and then demodulate the first parameter of the carrier signal to obtain the data sent by the charging box, so that the communication from the charging box to the wireless earphone is realized.
Optionally, the carrier signal generally has parameters of three dimensions, including frequency, amplitude and phase, and the first parameter may be amplitude, or the first parameter is at least one of frequency and phase.
Step S30, demodulating a second parameter of the carrier signal to obtain data sent by the wireless headset, where the first parameter is amplitude, the second parameter is at least one of frequency and phase, or the second parameter is amplitude, and the first parameter is at least one of frequency and phase.
In this embodiment, the second parameter of the carrier signal is different from the first parameter. And when the wireless earphone has data to be sent, modulating a second parameter of the carrier signal in the carrier communication channel according to the data to be sent, and representing the data to be sent through the change of the second parameter of the carrier signal. After the second parameter of the carrier signal changes, the charging box can also detect the change through the first contact, and then demodulate the second parameter of the carrier signal to obtain the data sent by the wireless earphone, so that the communication from the wireless earphone to the charging box is realized. Wherein, the demodulation process of the charging box can be realized by a modem or a separate demodulator.
Optionally, the charging box may demodulate, in real time or at regular time, the second parameter of the carrier signal in the carrier communication channel, to obtain the data sent by the wireless headset.
Optionally, after the frequency of the carrier signal is changed, the phase may also be changed correspondingly, and after the phase of the carrier signal is changed, the frequency may also be changed correspondingly, so as to avoid mutual influence between the first parameter and the second parameter of the carrier signal, when the charging box and the wireless headset leave the factory, the first parameter may be set to be the amplitude, and the second parameter may be set to be at least one of the frequency and the amplitude, or the second parameter may be set to be the amplitude, and the first parameter is set to be at least one of the frequency and the amplitude, so that the data transmitted between the charging box and the wireless headset is more accurate. The modulation and demodulation of the amplitude may be implemented by amplitude-shift keying (ASK), the modulation and demodulation of the Frequency may be implemented by Frequency-shift keying (FSK), and the modulation and demodulation of the phase may be implemented by phase-shift keying (PSK). Alternatively, the modulation depth of the amplitude, frequency, and phase may be preset, for example, may be adjusted by 10% based on the amplitude of the original carrier signal.
In the technical scheme disclosed in the embodiment, carrier communication is established between the charging box and the wireless earphone, and parameters of different dimensions of carrier signals are respectively adjusted when data are sent and received, so that the sent data and the received data are not interfered with each other, full-duplex communication between the charging box and the wireless earphone can be realized through a single contact, and the cost is reduced while the data transmission rate is improved.
In another embodiment, as shown in fig. 4, on the basis of the embodiment shown in fig. 3, before the step of establishing a carrier communication channel based on the first contact and the second contact, the method further includes:
step S40, after the first contact of the charging box is connected with the second contact of the wireless earphone, the wireless earphone is charged through the connection of the first contact and the second contact, so that the first contact is in a charging state;
in this embodiment, as shown in fig. 7, the charging box and the wireless headset each include only two contacts, the first contact of the charging box is the first power contact 120, and the second contact of the wireless headset is the second power contact 220. The first contact of the charging box comprises a charging state and a communication state, and the charging box can control the state of the first contact to be switched between the charging state and the communication state by adjusting the level value of the first contact. After the first contact of the charging box is connected with the second contact of the wireless earphone, the wireless earphone is charged through the charging box, and at the moment, the first contact is in a charging state.
Optionally, when the level value of the first contact is adjusted to a positive 5V voltage value, the first contact is in a charging state at this time; when the level value of the first contact is adjusted to a positive 3.3V voltage value, the first contact is in a communication state at this time.
Step S50, when the first contact is in the charging state, if it is detected that there is a communication requirement between the charging box and the wireless headset, executing the step of establishing a carrier communication channel based on the first contact and the second contact, so as to enable the first contact to be in the communication state.
In this embodiment, the charging box may detect whether there is a need for communication between the charging box and the wireless headset in real time or on a timed basis. Optionally, when the charging box detects that there is data to be sent to the headset, it is determined that there is a communication need, otherwise it is determined that there is no communication need. Therefore, when the first contact is in a charging state, if the communication requirement between the charging box and the wireless earphone is detected, the step of establishing a carrier communication channel based on the first contact and the second contact is executed, and at the moment, the first contact is in a communication state.
Optionally, when it is detected that there is no communication requirement between the charging box and the earphone, the charging box switches the state of the first contact to a charging state; and when the communication requirement between the charging box and the earphone is detected, the charging box switches the state of the first contact into a communication state.
Optionally, when the wireless headset detects a change in a level value of the first contact of the charging box, the wireless headset switches the state of the second contact from the charging state to the communication state to stop charging, and the charging box establishes a carrier communication channel based on the first contact and the second contact.
Optionally, when the first contact is in the communication state, if the charging box detects that the charging box meets the first preset condition, the state of the first contact is switched to the charging state. The first preset condition includes at least one of: the charging box has no data to be sent to the wireless earphone; data sent by the wireless earphone is not received within a preset time length; the number of times of receiving the empty data packets sent by the wireless earphone is greater than or equal to a second preset number of times; detecting that the wireless headset is not fully charged.
In the technical scheme disclosed in this embodiment, through the state switching of first contact, only can realize charging the communication between box and the wireless headset through two contacts to and wireless headset's charging, further reduce the contact quantity of charging box and wireless headset, improved wireless headset's stability when reduce cost.
In still another embodiment, as shown in fig. 5, a communication method is applied to a wireless headset on the basis of any one of the embodiments shown in fig. 3 to 4, and the communication method includes the following steps:
step S60, after a first contact of a charging box is connected with a second contact of the wireless earphone and a carrier communication channel is established based on the first contact and the second contact, modulating a second parameter of a carrier signal of the carrier communication channel according to data to be sent;
in this embodiment, the terminal of the embodiment is a wireless headset.
After the wireless earphone is placed into the charging box, the first contact of the charging box is connected with the second contact of the wireless earphone, and after a carrier communication channel is established based on the first contact and the second contact, the wireless earphone can send data to the charging box, so that communication between the wireless earphone and the charging box is realized. In particular, the wireless headset transmits the data to be transmitted to a modulator of the wireless headset, so that the modulator modulates the second parameter of the carrier signal of the carrier communication channel in accordance with the data to be transmitted. After the second parameter of the carrier signal changes, the charging box can also detect the change through the first contact, and the demodulator demodulates the second parameter of the carrier signal to obtain the data sent by the wireless headset.
Optionally, the carrier signal generally has parameters of three dimensions, including frequency, amplitude and phase, and the second parameter may be amplitude, or the second parameter is at least one of frequency and phase.
Step S70, demodulating a first parameter of the carrier signal to obtain data sent by the charging box, where the first parameter is amplitude, the second parameter is at least one of frequency and phase, or the second parameter is amplitude, and the first parameter is at least one of frequency and phase.
In this embodiment, the first parameter of the carrier signal is different from the second parameter. When the charging box has data to be sent, according to a first parameter of a carrier signal in a data modulation carrier communication channel to be sent, the data to be sent is represented through the change of the first parameter of the carrier signal. After the first parameter of the carrier signal changes, the wireless earphone can also detect the change through the second contact, and then demodulate the first parameter of the carrier signal to obtain the data sent by the charging box, so that the communication from the charging box to the wireless earphone is realized. Wherein, the demodulation process of the wireless earphone can be realized by a modem or a separate demodulator.
Optionally, the wireless headset may demodulate, in real time or at regular time, the first parameter of the carrier signal in the carrier communication channel to obtain the data sent by the charging box.
Alternatively, as shown in fig. 8, the left earphone and the right earphone of the wireless earphone each comprise a modulator and a demodulator, wherein the modulator is configured to perform the step of modulating the second parameter of the carrier signal of the carrier communication channel according to the data to be transmitted, and the demodulator is configured to perform the step of demodulating the first parameter of the carrier signal, and the modulator and the demodulator may be collectively referred to as a modem. Optionally, when it is detected that the wireless headset is placed in the charging box, the wireless headset turns on the modem, and performs a step of modulating a second parameter of a carrier signal of the carrier communication channel according to data to be transmitted after the first contact of the charging box is connected with the second contact of the wireless headset and the carrier communication channel is established based on the first contact and the second contact; and when the wireless earphone is detected to be taken out of the charging box, the wireless earphone closes the modem so as to reduce the energy consumption of the wireless earphone.
Optionally, after the wireless headset is detected to be placed in the charging box, the duration of the wireless headset in the charging box can be further acquired, and if the duration reaches a first preset duration, it is indicated that there is no communication demand between the wireless headset and the charging box temporarily, so that a modem of the wireless headset can be turned off, and the wireless headset enters a sleep mode. After the wireless earphone enters the sleep mode, the modem of the wireless earphone is controlled to start at intervals of a second preset time length, and the start lasts for a third preset time length each time, so that necessary information exchange between the wireless earphone and the charging box is completed at regular time.
Alternatively, as shown in fig. 7, the charging box and the wireless headset each include only two contacts, the first contact of the charging box being the first power contact 120, and the second contact of the wireless headset being the second power contact 220. The second contact of the wireless earphone comprises a charging state and a communication state, and the wireless earphone can control the state of the second contact to be switched between the charging state and the communication state by adjusting the level value of the second contact. After the first contact of the charging box is connected with the second contact of the wireless earphone, the wireless earphone is charged through the charging box, and at the moment, the first contact is in a charging state.
Optionally, when the level value of the second contact is adjusted to a positive 5V voltage value, the second contact is in a charging state at this time; when the level value of the first contact is adjusted to a positive 3.3V voltage value, then the second contact is in a communication state at this time.
Optionally, the wireless headset may detect whether there is a need for communication between the wireless headset and the charging box in real time or on a timed basis. Optionally, when the wireless headset detects that there is data to be sent to the charging box, it is determined that there is a communication requirement, otherwise it is determined that there is no communication requirement. Therefore, when the second contact is in the charging state, if the communication requirement between the wireless earphone and the charging box is detected, the second contact is switched to the communication state.
Optionally, when the charging box detects a change in a level value of the second contact of the wireless headset, the charging box switches the state of the first contact from the charging state to the communication state to stop charging, and establishes a carrier communication channel based on the first contact and the second contact, and the demodulator of the charging box may demodulate the second parameter of the carrier signal at this time to obtain the data sent by the wireless headset.
Optionally, when the second contact is in the communication state, if the wireless headset detects that the wireless headset meets a second preset condition, the state of the second contact is switched to the charging state. The second preset condition includes at least one of: the wireless earphone has no data to be sent to the charging box; data sent by the charging box are not received within a preset time length; the number of times of receiving the empty data packet sent by the charging box is larger than or equal to a second preset number of times. Through the state switching of second contact, only can realize the communication between box and the wireless earphone that charges through two contacts to and wireless earphone's charging, further reduce the contact quantity of box and wireless earphone that charges, improved wireless earphone's stability when reduce cost.
In the technical scheme disclosed by the embodiment, the carrier communication is established between the charging box and the wireless earphone, and the parameters of different dimensions of the carrier signal are respectively adjusted when data are sent and received, so that the sent data and the received data are not interfered with each other, the full-duplex communication between the charging box and the wireless earphone can be realized through a single contact, the data transmission rate is improved, and the cost is reduced.
As shown in fig. 8, taking the left earphone of the wireless earphone as an example, fig. 8 is a connection relationship diagram of the left earphone and the charging box.
In fig. 8, the charging box comprises a central microprocessor, a modulator, a demodulator, a carrier generator and a first contact, wherein the carrier generator generates a high-frequency sine wave signal, i.e. a carrier signal, and is used for establishing a carrier communication channel between the first contact and a second contact, the central microprocessor is used for transmitting data to be transmitted to the modulator so that the modulator modulates a first parameter of the carrier signal according to the data to be transmitted, the demodulator is used for demodulating a second parameter of the carrier signal, and transmitting the data obtained by demodulation to the central microprocessor.
The wireless earphone comprises a central microprocessor, a modulator, a demodulator and a second contact, wherein the microprocessor is used for transmitting data to be transmitted to the modulator so that the modulator modulates a second parameter of a carrier signal according to the data to be transmitted, and the demodulator is used for demodulating a first parameter of the carrier signal and transmitting the data obtained by demodulation to the central microprocessor.
The application scenario of the embodiment includes at least one of the following:
when the wireless earphone and the charging box are in a separated state: the charging box recognizes that the wireless earphone is not in the box, and the carrier wave generator, the modulator and the demodulator in the charging box are all in a closed state. The wireless earphone recognizes that the wireless earphone is not in the charging box, and a modulator and a demodulator in the wireless earphone are both in a closed state.
After the wireless earphone is placed in the charging box: the charging box recognizes that the wireless earphone is put in, the carrier generator in the charging box is started, and a communication bridge between the wireless earphone and the charging box is communicated. The demodulator of the charging box is started, the second parameter of the modulated carrier signal transmitted by the wireless earphone can be demodulated at any time, and the demodulated data is sent to the central microprocessor of the charging box end. When the charging box needs to send instructions or information to the wireless earphone, the central microprocessor of the charging box controls the modulator to start, and data to be sent is modulated onto the carrier signal to complete sending. The wireless earphone identifies that the wireless earphone is placed into the charging box, the demodulator of the wireless earphone is started, the first parameter of the modulated carrier signal transmitted by the charging box can be demodulated at any time, and the demodulated data is sent to the central microprocessor of the wireless earphone end. When the wireless earphone needs to send information to the charging box, the central microprocessor of the earphone controls the modulator to start, and data to be sent is modulated onto the carrier signal to complete sending. Because the first parameter and the second parameter are aiming at the modulation of two different dimensionalities of the carrier signal, the charging box sends a signal to the wireless earphone and the wireless earphone sends a signal to the charging box, the two parameters can be carried out simultaneously, although only one contact is used as a communication channel, the mutual interference can be still achieved, and the full-duplex communication can be achieved.
After the wireless earphone is placed in the charging box for a long time: the charging box and the wireless earphone both enter a sleep state, and the carrier generator in the charging box wakes up once every a period of time. During the awakening period, the charging box and the wireless earphone turn on the modulator and the demodulator to perform full duplex communication to complete the exchange of instructions or data. After the necessary information exchange is complete, the carrier generator, modulator, and demodulator are turned off.
When the charging box terminal carries out firmware upgrade to the wireless earphone terminal, or the wireless earphone terminal carries out firmware upgrade to the charging box terminal: the charging box and the wireless headset operate in the same manner when exchanging command information, but the amount of data increases. When the charging box end sends firmware upgrading data to the wireless earphone end, the wireless earphone end can send instructions and information to the charging box end at the same time. When the wireless earphone terminal sends firmware upgrading data to the charging box terminal, the charging box terminal can send instructions and information to the wireless earphone terminal at the same time.
As shown in fig. 9, waveforms of four signals included in fig. 9 include a digital signal, a carrier signal, an amplitude-modulated carrier signal, and a frequency-modulated carrier signal from top to bottom, in which the digital signal is data to be transmitted, and the carrier signal is an original signal generated by a carrier generator, the digital signal is modulated onto the amplitude of the carrier signal to obtain the amplitude-modulated carrier signal, and the digital signal is modulated onto the frequency of the carrier signal to obtain the frequency-modulated carrier signal.
The realization principle of the scheme is as follows: a carrier communication channel is established between the charging box and the wireless earphone through carrier signals, the carrier signals exist between the charging box and the wireless earphone, and because the first parameters and the second parameters of the carrier signals belong to two dimensions which are completely irrelevant, the second parameters cannot be influenced after the first parameters of the carrier signals are adjusted, and the first parameters cannot be influenced after the second parameters of the carrier signals are adjusted. After the first parameter of the carrier signal is adjusted, the change of the first parameter is transmitted to the other end along the carrier communication channel, so that the other end can obtain corresponding data by demodulating the first parameter of the carrier signal. After the second parameter of the carrier signal is adjusted, the change of the second parameter is transmitted to the other end along the carrier communication channel, so that the other end can obtain corresponding data by demodulating the second parameter of the carrier signal.
For convenience of description, as shown in fig. 10, a carrier communication channel is established between the charging box and the earphone, taking VCC at the charging box end as 2V as an example, the resistance at the wireless earphone end and the resistance at the charging box end are divided, when the resistance at the wireless earphone end and the resistance at the charging box end are both 10 kohms, the charging box end can detect the divided voltage of 1V, that is, the amplitude of the carrier signal at this time is 1V, the MCU at the wireless earphone end can change the resistance at the wireless earphone end by controlling the MOS switch, and when the resistance at the wireless earphone end is 0, the charging box end can detect the voltage of 2V, that is, the amplitude of the carrier signal at this time is 2V, thereby adjusting the amplitude of the carrier signal, and realizing communication from the wireless earphone end to the charging box end through adjustment of the amplitude. The circuit shown in fig. 10 is only used for illustrating the implementation principle of the present solution, and does not represent that the wireless headset and the charging box in the present solution have the connection relationship shown in fig. 10. The purpose of full-duplex communication between the charging box and the wireless earphone can be achieved by modulating the first parameter and the second parameter of different dimensionalities of the carrier signal.
Furthermore, an embodiment of the present invention further provides a charging box, which includes a first contact for connecting with a second contact of a wireless headset, and is configured to perform the communication method according to the above embodiments.
Furthermore, an embodiment of the present invention further provides a wireless headset, where the wireless headset includes a second contact for connecting with the first contact of the charging box, and the wireless headset is configured to perform the communication method according to the above embodiments.
Furthermore, an embodiment of the present invention further provides a computer storage medium, where a communication program is stored in the computer storage medium, and the communication program, when executed by a processor, implements the steps of the communication method according to the above embodiments.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are only for description, and do not represent the advantages and disadvantages of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A communication method applied to a charging box, comprising the steps of:
after the first contact of the charging box is connected with the second contact of the wireless headset, establishing a carrier communication channel based on the first contact and the second contact; the first grounding contact of the charging box and the second contact of the wireless earphone are connected to form a ground wire;
modulating a first parameter of a carrier signal corresponding to data to be sent, and sending the modulated data to be sent to the wireless earphone through the carrier communication channel;
meanwhile, receiving data to be demodulated sent by the wireless earphone through the carrier communication channel, demodulating a second parameter of a carrier signal corresponding to the data to be demodulated to obtain data sent by the wireless earphone, and realizing full duplex communication; wherein the first parameter is amplitude, the second parameter is at least one of frequency and phase, or the second parameter is amplitude, and the first parameter is at least one of frequency and phase.
2. The communication method of claim 1, wherein the communication method further comprises:
when the wireless earphone is detected to be placed in the charging box, a modem and a carrier generator of the charging box are started, the first contact of the charging box is connected with the second contact of the wireless earphone, and after a carrier communication channel is established based on the first contact and the second contact, a first parameter of a carrier signal of the carrier communication channel is modulated according to data to be sent;
and when the wireless earphone is detected to be taken out of the charging box, the modem and the carrier generator are turned off, wherein the modem is used for executing the step of modulating the first parameter of the carrier signal of the carrier communication channel according to the data to be transmitted and the step of demodulating the second parameter of the carrier signal, and the carrier generator is used for executing the step of establishing the carrier communication channel based on the first contact and the second contact.
3. The communication method of claim 2, wherein after the step of establishing a carrier communication channel based on the first contact and the second contact after the first contact of the charging box is connected with the second contact of the wireless headset, further comprising:
acquiring the duration of the wireless earphone in the charging box;
when the duration reaches a first preset duration, turning off the modem and the carrier wave generator;
and after the modem and the carrier wave generator are closed, controlling the modem and the carrier wave generator to start for a third preset time at intervals of a second preset time.
4. The communication method according to claim 1, wherein when the state of the first contact is a charging state, the first contact is used for charging the wireless headset; when the state of the first contact is a communication state, the first contact is used for establishing a communication connection between the charging box and the wireless headset, and before the step of establishing a carrier communication channel based on the first contact and the second contact, the communication method further comprises:
after the first contact of the charging box is connected with the second contact of the wireless earphone, the wireless earphone is charged through the connection of the first contact and the second contact, so that the first contact is in a charging state;
when the first contact is in a charging state, if a communication requirement between the charging box and the wireless earphone is detected, the step of establishing a carrier communication channel based on the first contact and the second contact is executed, so that the first contact is in a communication state.
5. A communication method applied to a wireless headset, the communication method comprising the steps of:
a first contact of a charging box is connected with a second contact of the wireless earphone, a carrier communication channel is established based on the first contact and the second contact, and a first grounding contact of the charging box and the second contact of the wireless earphone are connected to form a ground wire;
modulating a second parameter of a carrier signal corresponding to data to be transmitted, and transmitting the modulated data to be transmitted to the charging box through the carrier communication channel;
meanwhile, receiving data to be demodulated sent by the charging box through the carrier communication channel, demodulating a first parameter of a carrier signal corresponding to the data to be demodulated to obtain data sent by the charging box, and realizing full duplex communication; wherein the first parameter is amplitude, the second parameter is at least one of frequency and phase, or the second parameter is amplitude, and the first parameter is at least one of frequency and phase.
6. The communication method of claim 5, wherein the communication method further comprises:
when the wireless earphone is detected to be placed in the charging box, a modem of the wireless earphone is started, the first contact of the charging box is connected with the second contact of the wireless earphone, and after a carrier communication channel is established based on the first contact and the second contact, a second parameter of a carrier signal of the carrier communication channel is modulated according to data to be sent;
and when detecting that the wireless earphone is taken out of the charging box, turning off the modem, wherein the modem is used for executing the step of modulating the second parameter of the carrier signal of the carrier communication channel according to the data to be transmitted and the step of demodulating the first parameter of the carrier signal.
7. The communication method of claim 6, wherein after the step of detecting that the wireless headset is placed in the charging box, further comprising:
acquiring the duration of the wireless earphone in the charging box;
when the duration reaches a first preset duration, turning off the modem;
and after the modem is closed, controlling the modem to start for a third preset time at intervals of a second preset time.
8. A charging box, characterized in that it comprises a first contact for connecting with a second contact of a wireless headset, for performing the communication method according to any one of claims 1 to 4.
9. A wireless headset characterized in that the wireless headset comprises a second contact for connection with a first contact of a charging box, the wireless headset being adapted to perform the communication method of any of claims 5 to 7.
10. A computer storage medium, characterized in that a communication program is stored on the computer readable storage medium, which when executed by a processor implements the steps of the communication method according to any one of claims 1 to 7.
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| CN112838645B (en) * | 2021-02-09 | 2023-11-10 | 深圳市冠旭电子股份有限公司 | Charging control method and device for charging box, charging box and readable storage medium |
| CN113179108B (en) * | 2021-04-09 | 2023-01-03 | Oppo广东移动通信有限公司 | Signal transmission method and device, electronic equipment and readable storage medium |
| CN115225992A (en) * | 2021-04-16 | 2022-10-21 | Oppo广东移动通信有限公司 | Earphone external device and wireless earphone |
| CN113315209B (en) * | 2021-06-29 | 2022-11-08 | 紫优科技(深圳)有限公司 | Charging bin circuit, charging bin terminal, charging method and networking method |
| CN114125629A (en) * | 2021-11-18 | 2022-03-01 | 歌尔科技有限公司 | Communication method, charging box, wireless earphone and communication system |
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