CN106658262B - Earphone and method for preventing earphone from falling off - Google Patents
Earphone and method for preventing earphone from falling off Download PDFInfo
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- CN106658262B CN106658262B CN201710007965.7A CN201710007965A CN106658262B CN 106658262 B CN106658262 B CN 106658262B CN 201710007965 A CN201710007965 A CN 201710007965A CN 106658262 B CN106658262 B CN 106658262B
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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
- H04R1/105—Earpiece supports, e.g. ear hooks
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Headphones And Earphones (AREA)
Abstract
The invention discloses an earphone and a method for preventing the earphone from falling off. The earphone includes: a plurality of magnets, a plurality of pressure sensors, a fixed energizing coil and a microprocessor unit, wherein the magnets, the pressure sensors and the fixed energizing coil and the microprocessor unit are arranged around the ear-in part of the earphone; the microprocessor unit is used for controlling the current direction in the energized coils when the earphone is worn by a user, so that the energized coils at the two ends of the spring and the magnet are attracted to each other, and the current pressure value of the pressure sensor is obtained; judging whether the current pressure value is smaller than a preset pressure threshold value or not; if yes, controlling the current in the electrified coil to be reduced by a preset step length; stopping controlling the current to decrease until the pressure value in the pressure sensor is greater than or equal to a preset pressure threshold value, maintaining the current magnitude and direction, ensuring the fitting degree of the earphone and the human ear, and preventing the earphone from falling off. The invention ensures the fitting degree of the earphone and the human ear, can prevent the earphone from falling off, avoids the repeated adjustment of the earphone by a user, and enhances the use experience of the user.
Description
Technical Field
The invention relates to the technical field of earphones, in particular to an earphone and a method for preventing the earphone from falling off.
Background
With the popularity of headphones, users have become accustomed to using headphones in various situations, such as when going out from a gate, driving a car, riding public transportation, and exercising indoors or outdoors. When the earphone is used in various occasions, particularly in the driving, exercise and bumpy occasions, the situation that the earphone falls off from the ears is unavoidable, and a user is required to manually reinsert the earphone, so that great inconvenience is brought to the user, and the use experience of the user is reduced.
Disclosure of Invention
In view of the situation that the earphone in the prior art is easy to fall off from the ear, the earphone needs to be manually reinserted by a user, great inconvenience is brought to the user, and the use experience of the user is reduced, the invention provides an earphone and a method for preventing the earphone from falling off, so as to solve or at least partially solve the problems.
According to an aspect of the present invention, there is provided an earphone including: a plurality of magnets, a plurality of pressure sensors and fixed energizing coils connected with each magnet through a spring are arranged around the ear-in part of the earphone; when the energizing coil is energized, a magnetic field is generated, and the magnetic poles of the magnetic field generated according to the direction of the energizing current are the same as or opposite to the magnetic poles of the magnet, so that the energizing coil at two ends of the spring and the magnet attract each other or repel each other; the earphone also comprises a microprocessor unit;
the microprocessor unit is used for controlling the current direction in the energizing coil when a user wears the earphone, enabling the energizing coil at two ends of the spring and the magnet to attract each other, and obtaining the current pressure value of the pressure sensor; judging whether the current pressure value is smaller than a preset pressure threshold value or not; if yes, controlling the current in the electrified coil to be reduced by a preset step length so as to increase the pressure value of the pressure sensor; and judging whether the increased pressure value is smaller than a preset pressure threshold value, if so, continuing to control the current in the electrified coil to reduce the preset step length until the pressure value in the pressure sensor is larger than or equal to the preset pressure threshold value, stopping controlling the current to reduce, and keeping the current and the current direction so as to ensure the fit degree of the earphone and the human ear and prevent the earphone from falling off.
According to another aspect of the present invention, there is provided a method of
The method for preventing the earphone from falling off comprises the steps that a plurality of magnets and a plurality of pressure sensors are arranged around an ear-in part of the earphone, and each magnet is connected with a fixed power-on coil through a spring; when the energizing coil is energized, a magnetic field is generated, and the magnetic poles of the magnetic field generated according to the direction of the energizing current are the same as or opposite to the magnetic poles of the magnet, so that the energizing coil at two ends of the spring and the magnet attract each other or repel each other; the method comprises the following steps:
when a user wears the earphone, controlling the current direction in the energizing coil, so that the energizing coil at two ends of the spring and the magnet are attracted to each other, and acquiring the current pressure value of the pressure sensor;
judging whether the current pressure value is smaller than a preset pressure threshold value or not; if yes, controlling the current in the electrified coil to be reduced by a preset step length so as to increase the pressure value of the pressure sensor; and judging whether the increased pressure value is smaller than a preset pressure threshold value, if so, continuing to control the current in the electrified coil to reduce the preset step length until the pressure value in the pressure sensor is larger than or equal to the preset pressure threshold value, stopping controlling the current to reduce, and keeping the current and the current direction so as to ensure the fit degree of the earphone and the human ear and prevent the earphone from falling off.
In summary, the technical scheme of the invention is that the acting force between the energizing coil and the magnet is changed by adjusting the current of the energizing coil, so that the fitting degree of the earphone and the human ear is ensured, the earphone is prevented from falling off, the earphone is prevented from being adjusted repeatedly by a user, and the use experience of the user is enhanced.
Drawings
Fig. 1 is a schematic cross-sectional view of an ear-in portion of an earphone according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an earphone according to another embodiment of the present invention;
FIG. 3 is a flowchart of a method for preventing a headset from falling off according to an embodiment of the present invention;
fig. 4 is a flowchart of a method for preventing a headset from falling off according to another embodiment of the present invention.
Detailed Description
The design idea of the invention is as follows: in view of the fact that the earphone in the prior art is easy to fall off from ears, a user is required to manually reinsert the earphone, great inconvenience is brought to the user, and the problem of user experience is reduced. According to the earphone, the magnitude and the direction of current in the energized coil arranged on the ear part are controlled according to the pressure value of the pressure sensor around the ear part, so that the magnitude of interaction force between the magnet arranged on the ear part and the energized coil is controlled, the fitting degree of the earphone and the ear of a user is ensured, and the earphone is prevented from falling off. For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic cross-sectional structure of an ear-in portion of an earphone according to an embodiment of the present invention. As shown in fig. 1, the earphone includes: a magnet 111 arranged on the upper side of the ear part of the earphone, a magnet 112 on the right side, a magnet 113 on the lower side and a magnet 114 on the left side; a pressure sensor 121 disposed intermediate the magnet 111 and the magnet 114, a pressure sensor 122 disposed intermediate the magnet 111 and the magnet 112, a pressure sensor 123 disposed intermediate the magnet 112 and the magnet 113, and a pressure sensor 124 disposed intermediate the magnet 113 and the magnet 114; a fixed energizing coil 131 connected to the magnet 111 through a spring 141, a fixed energizing coil 132 connected to the magnet 112 through a spring 142, a fixed energizing coil 133 connected to the magnet 113 through a spring 143, and a fixed energizing coil 134 connected to the magnet 114 through a spring 144; and a microprocessor unit 150. The magnets and the fixed energizing coils connected with the magnets are distributed along the radial direction of the ear-in part of the earphone. In order to ensure the comfort of the user wearing the earphone, a soft sponge layer 100 is provided outside the pressure sensor and the magnet.
When each of the energizing coils is energized, a magnetic field is generated, and the energizing coils at the two ends of the spring and the magnet are attracted or repelled mutually according to the fact that the magnetic poles of the magnetic field generated in the direction of the energizing current are identical or opposite to the magnetic poles of the magnet. The magnetic field generated by the electrified coil accords with the right-handed spiral rule, and the formula of the magnetic field generated by the electrified coil is as follows: h=n×i/Le; wherein H is the magnetic field intensity, and the unit is A/m; n is the number of turns of the exciting coil; i is excitation current (measured value) and is expressed as A; le is the effective magnetic path length of the energized coil in m. It can be seen that the magnitude and pole direction of the magnetic field generated by the energized coil is related to the magnitude and direction of the current flowing through the energized coil. Therefore, the size and the direction of the current can be controlled, the magnet is attracted or repelled, and the purpose that the magnet moves along the radial direction of the ear-in part of the earphone is achieved, so that the control of the fitting degree of the ear of a user is realized, and the earphone is prevented from falling off.
For example, when the magnetic pole at one end of the linking spring 141 of the magnet 111 is N pole and the current of the energizing coil is positive, the magnetic pole of the magnetic field generated at one end of the linking spring is S pole according to the right-hand spiral rule, so that the magnet and the energizing coil attract each other; if the current of the energizing coil is reversed, the magnetic pole of the magnetic field generated by one end of the connecting spring is also N pole according to the right-hand spiral rule, and the magnet and the energizing coil repel each other; then the force between the magnet and the electrified coil can be applied to meet the requirements of the fitting degree of the earphone and the ears of the user when the earphone is prevented from falling off.
When different users prevent the earphone from falling off, the current and the direction of the current which is fed into the power-on coil are required to be different, so that the current requirements of different users are met, and the current are prevented from being blindly adjusted. The earphone of this scheme still is provided with pressure sensor according to the regulation of the size and the direction of electric current that need carry out of user's demand, acquires pressure sensor's pressure value through microprocessor unit, carries out reasonable size and the control of direction of electric current according to pressure value, and then satisfies the requirement of user's ear laminating degree, prevents that earphone from droing.
The specific control process of the microprocessor unit is as follows: when a user wears the earphone, the current direction in the energizing coils is controlled firstly, so that the energizing coils at the two ends of the spring and the magnet are attracted mutually, and the current pressure value of the pressure sensor is obtained; judging whether the current pressure value is smaller than a preset pressure threshold value N0 or not; if not, the current magnitude and direction are maintained; if the current in the energizing coil is controlled to be reduced by a preset step length I0, the mutual attraction force between the energizing coil and the magnet at the two ends of the spring is also reduced after the current is reduced, and the pressure value of the pressure sensor is also increased; judging whether the increased pressure value is smaller than a preset pressure threshold value N0, if yes, continuing to control the current in the electrified coil to reduce the preset step length until the pressure value in the pressure sensor is larger than or equal to the preset pressure threshold value N0, stopping controlling the current to reduce, and keeping the current in the current size and direction so as to ensure the fit degree of the earphone and the human ear and prevent the earphone from falling off.
The preset pressure threshold value N0 is preset in the microprocessor unit, the preset pressure threshold value N0 is a critical value which is obtained through a large amount of statistical data and meets the fit degree of the earphone and the ears of the user, and when the pressure value is smaller than N0, the earphone is in danger of falling off; when the pressure value is greater than or equal to N0, the earphone is not easy to fall off. Therefore, when the pressure value of the pressure sensor in the earphone is larger than or equal to N0, the earphone can be considered not to fall off when the user wears the earphone. Meanwhile, the preset step length I0 is preset in the microprocessor unit, and is not too large, so that the pressure value is prevented from being changed too much, and uncomfortable feeling is brought to the ears of the user. It should not be too small to affect the speed of current regulation.
When the pressure sensor is used for adjusting, pressure values exist in each pressure sensor, and current adjustment is needed only if one pressure value is not greater than or equal to a preset pressure threshold value, and the adjustment is not calculated until the pressure values of all the pressure sensors are balanced and all the pressure values are greater than or equal to the preset pressure threshold value.
It should be noted that, this embodiment provides an earphone with 4 magnets and 4 pressure sensors disposed at the ear of the earphone, so as to ensure that the distribution of the fitting degree between the earphone and the ear is relatively uniform. However, the number of magnets, the number of pressure sensors, and the number of springs and energizing coils are not particularly limited. The scheme of preventing the earphone from falling off is within the protection scope of the invention as long as the earphone is designed by the structure of the earphone.
When the user wears the earphone, the current direction in the energized coil is controlled to enable the energized coils at the two ends of the spring to be attracted with the magnet, and after the pressure value of the pressure sensor is judged to be smaller than the preset pressure threshold value, the operation of controlling the current to be reduced is performed until the pressure value of the pressure sensor is larger than or equal to the preset pressure threshold value. However, it should be noted that the process of controlling the operation of reducing the current cannot be performed all the time, the energized coil and the magnet are connected by a spring, the spring connection causes a certain tensile force between the energized coil and the magnet, the energized coil and the magnet are attracted to each other by the current itself, after the current is small to a certain extent, the source of the main acting force is not the attraction force caused by the current, but the tensile force of the spring, in this case, if the pressure value is still smaller than the preset pressure threshold value, even if the re-control current is reduced, the requirement that the pressure value is greater than or equal to the preset pressure threshold value cannot be met, so that the number of times of reducing the preset step is required by limiting the current in turn, that is, the operation of controlling the smaller current needs a limitation, and when the limited number of times is not met, the direction of the current needs to be controlled, so that the energized coil and the magnet repel each other. Therefore, in one embodiment of the present invention, the microprocessor unit 150 is configured to determine whether the increased pressure value is still smaller than the preset pressure threshold value when the number of times of continuously controlling the current in the power-on coil to decrease by the preset step is equal to or greater than the preset number of times threshold value; for example, the preset number of times threshold is set to 10 times, when the number of times of decreasing the current in the control energizing coil by the preset step is 10 times or more, it is judged whether the pressure value at this time is smaller than the preset pressure threshold, and if it is judged that the pressure value is not, that is, the pressure value is just equal to or larger than the preset pressure threshold, the current magnitude and direction are maintained.
If yes, controlling the current in the electrified coils to be reversed, enabling the electrified coils at the two ends of the spring to repel the magnet, obtaining a pressure value of the pressure sensor after the current is reversed, and judging whether the pressure value is larger than or equal to a preset pressure threshold value; if yes, the current magnitude and direction are maintained; if not, the current in the energizing coil is controlled to be sequentially increased by a preset step length I0, and the current size and direction are maintained until the pressure value of the pressure sensor is larger than or equal to a preset pressure threshold value.
Fig. 2 is a schematic structural diagram of an earphone according to another embodiment of the present invention. As shown in fig. 2, the earphone includes: a pressure sensor D1, a pressure sensor D2, a pressure sensor D3, and a pressure sensor D4; a fixed energizing coil B1, a fixed energizing coil B2, a fixed energizing coil B3, and a fixed energizing coil B4; a microprocessor unit CPU; and a vibration sensor E. The pressure sensor D1, the pressure sensor D2, the pressure sensor D3, the pressure sensor D4, the fixed energizing coil B1, the fixed energizing coil B2, the fixed energizing coil B3, the fixed energizing coil B4, and the microprocessor unit CPU have the same functions as the pressure sensor 121, the pressure sensor 122, the pressure sensor 123, the pressure sensor 124, the fixed energizing coil 131, the spring 142, the fixed energizing coil 132, the fixed energizing coil 133, the fixed energizing coil 134, and the microprocessor unit 150 shown in fig. 1, and the same parts are not described here again.
The microprocessor unit CPU is also used for acquiring the current vibration amplitude of the earphone through the vibration sensor E before acquiring the current pressure value of the pressure sensor; and after judging that the pressure value is greater than or equal to the preset pressure threshold value, storing the current vibration amplitude as a key and the current size and direction as key values in a preset storage table in the CPU of the microprocessor unit while keeping the current size and direction.
The vibration sensor E can accurately reflect the current state of the user, so that the earphone can adjust the fit degree of the earphone and the human ear according to the state of the user, and the earphone is prevented from falling off. For example, the vibration sensor E detects the current vibration condition of the earphone when the user wears the earphone, the current vibration condition of the earphone accurately reflects the vibration condition of the body of the user, when the user is in different states such as running, walking, resting, etc., the vibration conditions detected by the vibration sensor are different, the pressure required for fixing the earphone is also different, that is, the fitting degree required for the earphone and the human ear is also different. Therefore, the current pressure value is adjusted in real time according to the vibration condition, so that the earphone can meet the anti-falling requirement of a user on the earphone under various different conditions.
When the user wears the earphone again, the microprocessor unit CPU is used for acquiring the current vibration amplitude of the earphone through the vibration sensor E before acquiring the current pressure value of the pressure sensor, inquiring whether the current corresponding to the current vibration amplitude value serving as a key exists in the preset storage table or not, and if so, directly controlling the current in the energizing coil according to the key value corresponding to the key. Therefore, the earphone can save the adjustment record through the self-learning process, and when the user wears the earphone again, the current is directly controlled to reach the corresponding current magnitude and direction through the record in the preset storage table, so that the adjustment speed is improved, and the user experience is further enhanced. When the magnitude and direction data of the current with corresponding vibration amplitude do not exist in the preset storage table, the current is controlled and regulated.
Fig. 3 is a flowchart of a method for preventing a headset from falling off according to an embodiment of the present invention. As shown in fig. 3, the method includes:
step S310, arranging a plurality of magnets and a plurality of pressure sensors around the ear-in part of the earphone, wherein each magnet is connected with a fixed energizing coil through a spring; when the energizing coil is energized, a magnetic field is generated, and the magnetic poles of the magnetic field generated according to the energizing current direction are identical or opposite to the magnetic poles of the magnet, so that the energizing coil at the two ends of the spring and the magnet attract each other or repel each other.
Step S320, when a user wears the earphone, controlling the current direction in the energized coils, so that the energized coils at the two ends of the spring and the magnet are attracted to each other, and acquiring the current pressure value of the pressure sensor;
step S330, judging whether the current pressure value is smaller than a preset pressure threshold value; if not, the current magnitude and direction are maintained; if yes, controlling the current in the electrified coil to decrease by a preset step length so as to increase the pressure value of the pressure sensor; and judging whether the increased pressure value is smaller than a preset pressure threshold value, if so, continuing to control the current in the electrified coil to reduce the preset step length until the pressure value in the pressure sensor is larger than or equal to the preset pressure threshold value, stopping controlling the current to reduce, and keeping the current and the current direction so as to ensure the fit degree of the earphone and the human ear and prevent the earphone from falling off.
In one embodiment of the present invention, the method shown in fig. 3 further comprises: when the number of times of continuously controlling the current in the energizing coil to decrease by the preset step is greater than or equal to a preset number of times threshold, judging whether the increased pressure value is still smaller than the preset pressure threshold; if yes, controlling the current in the electrified coils to be reversed, enabling the electrified coils at the two ends of the spring to repel the magnet, obtaining a pressure value of the pressure sensor after the current is reversed, and judging whether the pressure value is larger than or equal to a preset pressure threshold value; if yes, the current magnitude and direction are maintained; if not, the current in the energizing coil is controlled to sequentially increase the preset step length until the pressure value of the pressure sensor is larger than or equal to the preset pressure threshold value, and the current magnitude and direction are maintained.
In one embodiment of the invention, a vibration sensor is arranged at the in-ear part of the earphone;
before the current pressure value of the pressure sensor is acquired in step S320, the method shown in fig. 3 further includes: acquiring the current vibration amplitude of the earphone through a vibration sensor; and storing the current vibration amplitude as a key and the current magnitude and direction as a key value in a preset memory table while maintaining the current magnitude and direction in step S330.
The method shown in fig. 3 further includes, before the current pressure value of the pressure sensor is acquired in step S330 and after the current vibration amplitude of the earphone is acquired by the vibration sensor:
inquiring whether the preset storage table has the corresponding current size and direction taking the current vibration amplitude value as the key, and if so, directly controlling the current size and direction in the electrified coil according to the key value corresponding to the key.
In one embodiment of the present invention, in step S310, a plurality of magnets and a plurality of pressure sensors are disposed around the ear-in portion of the earphone specifically: 1 magnet is respectively arranged on the upper part, the lower part, the left part and the right part of the ear part of the earphone; a pressure sensor is arranged between every two magnets.
Fig. 4 is a flowchart of a method for preventing a headset from falling off according to another embodiment of the present invention. As shown in fig. 4, the method includes:
in step S410, after the user wears the earphone, adjustment is started.
In step S420, the current vibration amplitude X of the earphone is obtained by the vibration sensor.
Step S430, judging whether the magnitude and the direction of the corresponding current taking the current vibration amplitude value as a key exist in the preset storage table.
If so, step S415 directly controls the current magnitude and direction in the energized coil according to the magnitude and direction of the corresponding current in the preset memory table, and S414 ends the adjustment.
If not, step S440 is performed to control the current direction in the energizing coil, so that the energizing coil at both ends of the spring and the magnet attract each other, and the current pressure value N of the pressure sensor is obtained.
In step S450, it is determined whether the pressure value N is smaller than a preset pressure threshold N0.
If not, step S490, keep the magnitude and direction of the present electric current; the current magnitude and direction are recorded, the vibration amplitude is used as a key, the current magnitude and direction are stored in a preset memory table, and the adjustment is finished at S414.
If yes, S460, the current in the control energizing coil is reduced by a preset step i.
S480, judging whether the changed pressure value N is smaller than a preset pressure threshold value and whether the number of times of the reduced current is smaller than a preset number of times threshold value.
If yes, the process proceeds to step S470.
If not, S480 is performed to determine whether the changed pressure value N is greater than or equal to a preset pressure threshold N0 and the number of times the current is reduced is less than a preset number of times threshold.
If yes, step S490, the magnitude and direction of the present current are maintained; the current magnitude and direction are recorded, the vibration amplitude is used as a key, the current magnitude and direction are stored in a preset memory table, and the adjustment is finished at S414.
If the judgment is no, that is, the pressure value N is smaller than the preset pressure threshold value and the number of times of decreasing the current is greater than or equal to the preset number of times threshold value, step S411 controls the current in the energizing coil to be reversed, so that the energizing coil at both ends of the spring and the magnet repel each other.
And step S412, the pressure value N of the pressure sensor after the current is reversed is obtained, and whether the pressure value N is larger than or equal to a preset pressure threshold value N0 is judged.
If yes, step S490, the current magnitude and direction are maintained; the current magnitude and direction are recorded, the vibration amplitude is used as a key, the current magnitude and direction are stored in a preset memory table, and the adjustment is finished at S414.
If not, step S413 is performed to control the current in the energizing coil to increase by a preset step i until the pressure value N of the pressure sensor is greater than or equal to the preset pressure threshold N0, step S490 is performed to maintain the current magnitude and direction; the current magnitude and direction are recorded, the vibration amplitude is used as a key, the current magnitude and direction are stored in a preset memory table, and the adjustment is finished at S414.
In summary, the earphone of the present invention includes a plurality of magnets, a plurality of pressure sensors, a fixed energizing coil connected to each magnet through a spring, and a microprocessor unit; when the energizing coil is energized, a magnetic field is generated, and the magnetic poles of the magnetic field generated by the energizing coil are the same as or opposite to the magnetic poles of the magnet, so that the energizing coil at the two ends of the spring and the magnet attract each other or repel each other. When a user wears the earphone, the microprocessor unit controls the current direction in the energizing coils, so that the energizing coils at the two ends of the spring and the magnet are attracted to each other, and the current pressure value of the pressure sensor is obtained; judging whether the current pressure value is smaller than a preset pressure threshold value or not; if yes, controlling the current in the electrified coil to reduce a preset step length so as to change the pressure value of the pressure sensor; judging whether the changed pressure value is smaller than a preset pressure threshold value, if so, continuing to control the current in the electrified coil to reduce the preset step length until the pressure value in the pressure sensor is larger than or equal to the preset pressure threshold value, stopping controlling the current to reduce, keeping the current and the current, ensuring the fitting degree of the earphone and the human ear, and preventing the earphone from falling off. Therefore, the technical scheme of the invention is that the acting force between the electrified coil and the magnet is changed by adjusting the current of the electrified coil, so that the fitting degree of the earphone and the human ear is ensured, the earphone is prevented from falling off, the earphone is prevented from being adjusted repeatedly by a user, and the use experience of the user is enhanced.
The foregoing is merely a specific embodiment of the invention and other modifications and variations can be made by those skilled in the art in light of the above teachings. It is to be understood by persons skilled in the art that the foregoing detailed description is provided for the purpose of illustrating the invention more fully, and that the scope of the invention is defined by the appended claims.
Claims (8)
1. An earphone, the earphone comprising: a plurality of magnets, a plurality of pressure sensors and fixed energizing coils connected with each magnet through a spring are arranged around the ear-in part of the earphone; when the energizing coil is energized, a magnetic field is generated, and the magnetic poles of the magnetic field generated according to the direction of the energizing current are the same as or opposite to the magnetic poles of the magnet, so that the energizing coil at two ends of the spring and the magnet attract each other or repel each other; the earphone also comprises a microprocessor unit;
the microprocessor unit is used for controlling the current direction in the energizing coil when a user wears the earphone, enabling the energizing coil at two ends of the spring and the magnet to attract each other, and obtaining the current pressure value of the pressure sensor; judging whether the current pressure value is smaller than a preset pressure threshold value or not; if yes, controlling the current in the electrified coil to be reduced by a preset step length so as to increase the pressure value of the pressure sensor; judging whether the increased pressure value is smaller than a preset pressure threshold value, if so, continuing to control the current in the electrified coil to reduce the preset step length until the pressure value in the pressure sensor is larger than or equal to the preset pressure threshold value, stopping controlling the current to reduce, and keeping the current and the current direction so as to ensure the fit degree of the earphone and the human ear and prevent the earphone from falling off;
the microprocessor unit is further used for judging whether the increased pressure value is still smaller than a preset pressure threshold value or not when the number of times of continuously controlling the current in the electrified coil to reduce by a preset step is larger than or equal to the preset number of times threshold value; if yes, controlling the current in the electrified coil to be reversed, enabling the electrified coils at the two ends of the spring to repel the magnet, obtaining a pressure value of the pressure sensor after the current is reversed, and judging whether the pressure value is larger than or equal to the preset pressure threshold value; if yes, the current magnitude and direction are maintained; if not, controlling the current in the electrified coil to sequentially increase a preset step length until the pressure value of the pressure sensor is greater than or equal to a preset pressure threshold value, and keeping the current magnitude and direction.
2. The headset of claim 1, wherein the headset further comprises: a vibration sensor arranged at the ear;
the microprocessor unit is further used for acquiring the current vibration amplitude of the earphone through the vibration sensor before acquiring the current pressure value of the pressure sensor; the method comprises the steps of,
and storing the current vibration amplitude as a key and the current size and direction as key values in a preset storage table in the microprocessor unit while keeping the current size and direction.
3. The earphone of claim 2 wherein the microprocessor unit is further configured to obtain a current vibration amplitude of the earphone via the vibration sensor before obtaining a current pressure value of the pressure sensor, query a preset memory table for a key having the current vibration amplitude value, and if so, directly control a current magnitude and a current direction in the power-on coil according to a key value corresponding to the key.
4. The headset of claim 3, wherein the headset specifically comprises: four magnets respectively arranged on the upper part, the lower part, the left part and the right part of the ear-in part of the earphone; four pressure sensors are arranged between every two magnets.
5. A method for preventing earphone from falling off is characterized in that a plurality of magnets and a plurality of pressure sensors are arranged around an ear-in part of the earphone, and each magnet is connected with a fixed power-on coil through a spring; when the energizing coil is energized, a magnetic field is generated, and the magnetic poles of the magnetic field generated according to the direction of the energizing current are the same as or opposite to the magnetic poles of the magnet, so that the energizing coil at two ends of the spring and the magnet attract each other or repel each other; the method comprises the following steps:
when a user wears the earphone, controlling the current direction in the energizing coil, so that the energizing coil at two ends of the spring and the magnet are attracted to each other, and acquiring the current pressure value of the pressure sensor;
judging whether the current pressure value is smaller than a preset pressure threshold value or not; if yes, controlling the current in the electrified coil to be reduced by a preset step length so as to increase the pressure value of the pressure sensor; judging whether the increased pressure value is smaller than a preset pressure threshold value, if so, continuing to control the current in the electrified coil to reduce the preset step length until the pressure value in the pressure sensor is larger than or equal to the preset pressure threshold value, stopping controlling the current to reduce, and keeping the current and the current direction so as to ensure the fit degree of the earphone and the human ear and prevent the earphone from falling off;
the method further comprises the steps of:
when the current in the energizing coil is continuously controlled to be reduced by the preset step length times which are larger than or equal to a preset time threshold value, judging whether the increased pressure value is still smaller than the preset pressure threshold value or not;
if yes, controlling the current in the electrified coil to be reversed, enabling the electrified coils at the two ends of the spring to repel the magnet, obtaining a pressure value of the pressure sensor after the current is reversed, and judging whether the pressure value is larger than or equal to the preset pressure threshold value;
if yes, the current magnitude and direction are maintained;
if not, the current in the electrified coil is controlled to sequentially increase the preset step length until the pressure value of the pressure sensor is larger than or equal to the preset pressure threshold value, and the current magnitude and direction are maintained.
6. The method of claim 5, wherein a vibration sensor is provided at an in-ear portion of the earphone; before acquiring the current pressure value of the pressure sensor, the method further comprises:
acquiring the current vibration amplitude of the earphone through the vibration sensor;
and storing the current vibration amplitude as a key and the current size and direction as key values in a preset storage table while maintaining the current size and direction.
7. The method of claim 6, wherein prior to said obtaining a current pressure value of said pressure sensor, and after said obtaining a current vibration amplitude of said headset by said vibration sensor, said method further comprises:
inquiring whether the preset storage table has the corresponding current size and direction taking the current vibration amplitude value as the key, and if so, directly controlling the current size and direction in the electrified coil according to the key value corresponding to the key.
8. The method of claim 5, wherein the disposing a plurality of magnets and a plurality of pressure sensors around the ear-in portion of the earphone comprises:
1 magnet is respectively arranged on the upper part, the lower part, the left part and the right part of the ear part of the earphone; one pressure sensor is arranged between every two magnets.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710007965.7A CN106658262B (en) | 2017-01-05 | 2017-01-05 | Earphone and method for preventing earphone from falling off |
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| CN107147968B (en) * | 2017-07-14 | 2023-11-24 | 歌尔科技有限公司 | Headset |
| CN108769850A (en) * | 2018-05-22 | 2018-11-06 | Oppo广东移动通信有限公司 | Apparatus control method and Related product |
| CN109068225B (en) * | 2018-09-29 | 2020-09-15 | 安克创新科技股份有限公司 | Earphone, control method thereof and computer storage medium |
| CN112706703B (en) * | 2020-12-30 | 2022-09-09 | 高迅导航科技(深圳)有限公司 | Navigator capable of preventing connection part from vibrating and falling off |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101742374A (en) * | 2008-11-18 | 2010-06-16 | 严玉戌 | Improved earphone |
| JP2012249186A (en) * | 2011-05-30 | 2012-12-13 | Yamaha Corp | Earphone |
| US9042588B2 (en) * | 2011-09-30 | 2015-05-26 | Apple Inc. | Pressure sensing earbuds and systems and methods for the use thereof |
| CN202535510U (en) * | 2012-03-23 | 2012-11-14 | 歌尔声学股份有限公司 | Headphone |
| KR101471981B1 (en) * | 2013-12-20 | 2014-12-10 | 주식회사 고엘바이오 | Earbud set, and Hearing aid and Earphone using this |
| CN205144867U (en) * | 2015-11-25 | 2016-04-13 | 邢雨锟 | Intelligence earplug based on vacuum principle |
| CN105592377B (en) * | 2016-01-06 | 2018-11-27 | 朝阳聚声泰（信丰）科技有限公司 | Sports earphones |
| CN105848037A (en) * | 2016-05-17 | 2016-08-10 | 乐视控股（北京）有限公司 | Headset and terminal device controlling method |
| CN106028192B (en) * | 2016-06-30 | 2022-05-17 | 青岛歌尔声学科技有限公司 | Bluetooth motion earphone |
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