CN117061935B

CN117061935B - Wireless broadcasting device

Info

Publication number: CN117061935B
Application number: CN202311311130.2A
Authority: CN
Inventors: 尹绪彪; 姚建明
Original assignee: Civil Aviation Flight University of China
Current assignee: Civil Aviation Flight University of China
Priority date: 2023-10-11
Filing date: 2023-10-11
Publication date: 2024-04-05
Anticipated expiration: 2043-10-11
Also published as: CN117061935A

Abstract

The invention relates to the technical field of Bluetooth headphones, in particular to a wireless broadcasting device, which comprises a headphone band, a Hall sensor, an acquisition component, a judging component and an executing component, wherein both ends of the headphone band are provided with headphones, the Hall sensor is arranged on the headphone band, the Hall voltage of the Hall sensor changes according to the width and the length of the skull of a user currently in use, the acquisition component is used for acquiring the Hall voltage of the Hall sensor, the judging component is used for comparing the Hall voltage of the Hall sensor with a preset Hall voltage to judge whether the user currently in use is a set user, and the executing component is used for stopping the headphones from broadcasting when the user currently in use is not the set user or continuing the headphones to broadcasting when the user currently in use is the set user. The difference of the current user leads to the difference of the Hall voltage of the Hall sensor, and when the Hall voltage of the Hall sensor is different from the preset voltage, the earphone stops playing, so that the privacy of the set user is protected.

Description

Wireless broadcasting device

Technical Field

The invention relates to the technical field of Bluetooth headphones, in particular to a wireless broadcasting device.

Background

Bluetooth is a global standard technology for wireless data and voice communications, which is a special short-range wireless technology that establishes a communication environment for fixed and mobile devices based on low-cost short-range wireless connections.

The Bluetooth headset is characterized in that the Bluetooth technology is applied to the hands-free headset, so that a user can avoid the trouble of an annoying wire and can communicate in various ways; bluetooth headsets are in turn classified into several categories depending on the manner of wearing, for example, in-ear, necklace-type, or head-mounted, wherein a headset refers to a type of headset that is worn on the head, not inserted into the ear canal, and is distinguished from in-ear.

The existing Bluetooth headset cannot identify the identity of the current user, so that anyone can pick up the Bluetooth headset and listen to the played content after wearing the Bluetooth headset on the head, and privacy of the set user cannot be effectively protected.

Disclosure of Invention

Accordingly, it is necessary to provide a wireless broadcasting device for solving the problem that the privacy of a user cannot be effectively protected by the conventional bluetooth headset.

The above purpose is achieved by the following technical scheme:

a wireless broadcasting device, the wireless broadcasting device comprising:

the earphone belt is provided with earphones at two ends;

the Hall sensor is arranged on the earphone belt, and the Hall voltage of the Hall sensor changes according to the width and the length of the skull of the current user;

the acquisition component is used for acquiring the Hall voltage of the Hall sensor;

the judging component is used for comparing the Hall voltage of the Hall sensor with a preset Hall voltage to judge whether the current user is a set user or not;

an execution component, if the current user is not a set user, stopping playing by the receiver; if the current user is the set user, the earphone continues playing.

Further, the earpiece is slidable along the extending direction of the earphone band.

Further, a first latch is arranged at the end part of the earphone band; the earphone is provided with a second latch, and the second latch is clamped with the first latch so as to limit the position of the earphone on the earphone band.

Further, the wireless broadcasting device further comprises a first magnet, and the first magnet can be rotatably arranged on the earphone belt; the earphone synchronously drives the first magnet to rotate when sliding along the extending direction of the earphone belt so as to change the included angle between the magnetic induction line generated by the first magnet and the Hall sensor.

Further, the wireless broadcasting device further comprises a rotating wheel, the rotating wheel can be rotatably arranged on the earphone belt, the outer circumferential wall surface of the rotating wheel is in friction contact with the earphone, the first magnet is fixedly arranged on the rotating wheel, and the extension line of the first magnet is perpendicular to the axis of the rotating wheel.

Further, the earphone has an open state and a closed state, and when in use, the earphone is in the open state, and a preset distance is reserved between the two earphones; when not in use, the earphones are in a retracted state, and the two earphones are abutted.

Further, the wireless broadcasting device further comprises a support, one end of the support can be hinged to the earphone belt in a sliding mode along the extending direction of the earphone belt, and the other end of the support is hinged to the earphone.

Further, a second magnet is arranged on the support, and the second magnet and the first magnet are in a repulsive state.

Further, the earphone band comprises two parts, one ends of the two parts, which are close to each other, are hinged through a potentiometer and are connected through an elastic piece, the potentiometer is electrically connected with the Hall sensor, and the elastic piece is used for enabling the two earphones to have a trend of approaching to each other.

Further, the elastic piece is a tension spring.

The beneficial effects of the invention are as follows:

according to the wireless broadcasting device provided by the invention, when the current user is not the same person as the set user, the Hall voltage of the Hall sensor is changed according to the width and the length of the skull of the current user, and when the Hall voltage of the Hall sensor is different from the preset Hall voltage, the earphone stops broadcasting, so that the identity of the current user is effectively identified, and the privacy of the set user is protected.

Drawings

Fig. 1 is a schematic perspective view of a wireless broadcasting device according to an embodiment of the present invention;

fig. 2 is an exploded view of a part of a wireless broadcasting device according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a partial enlarged structure of a wireless broadcasting device a shown in fig. 2;

fig. 4 is a schematic cross-sectional view of a wireless broadcasting device according to an embodiment of the present invention;

fig. 5 is a schematic diagram of a partial enlarged structure of a B part of the wireless broadcasting device shown in fig. 4;

fig. 6 is a schematic cross-sectional diagram of a wireless broadcasting device according to an embodiment of the present invention;

fig. 7 is a schematic diagram of a partial enlarged structure of a portion C of the wireless broadcasting device shown in fig. 6;

fig. 8 is a schematic perspective view of a wireless broadcasting device according to an embodiment of the present invention;

fig. 9 is a schematic diagram of operation of a wireless broadcasting device according to an embodiment of the present invention.

Wherein:

100. an earphone band; 101. a connecting rod; 102. a connection hole; 103. a mounting groove; 104. a first latch; 105. a hall sensor;

200. a rotating wheel; 210. a first magnet;

300. a protective sleeve;

400. a tension spring;

500. a potentiometer;

600. a connecting frame; 601. a second latch; 602. a friction surface;

700. a receiver; 710. a bracket; 711. and a second magnet.

Detailed Description

The present invention will be further described in detail below with reference to examples, which are provided to illustrate the objects, technical solutions and advantages of the present invention. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

The numbering of components herein, such as "first," "second," etc., is used merely to distinguish between the described objects and does not have any sequential or technical meaning. The terms "coupled" and "connected," as used herein, are intended to encompass both direct and indirect coupling (coupling), unless otherwise indicated. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

As shown in fig. 1 to 9, the wireless broadcasting device provided by an embodiment of the present invention can protect the privacy of a set user; in this embodiment, the wireless broadcasting device is configured to include an earphone band 100, a hall sensor 105, an acquisition component, a judgment component, and an execution component, where both ends of the earphone band 100 are provided with earpieces 700; the hall sensor 105 is arranged on the earphone band 100, and the hall voltage of the hall sensor 105 is changed according to the width and length of the skull of the current user; the acquisition component is used for acquiring the Hall voltage of the Hall sensor 105; the judging component is used for comparing the Hall voltage of the Hall sensor 105 with a preset Hall voltage to judge whether the current user is a set user or not; the execution component is used for stopping playing of the earphone 700 when the current user is not the set user, or enabling the earphone 700 to continue playing when the current user is the set user; and when the current user is not the same person as the setting user, the Hall voltage of the Hall sensor 105 is changed according to the width and the length of the skull of the current user, and when the Hall voltage of the Hall sensor 105 is different from the preset Hall voltage, the earphone 700 stops playing, so that the identity of the current user is effectively identified, and the privacy of the setting user is protected.

Specifically, the preset hall voltage is set to the hall voltage of the hall sensor 105 obtained according to the width and length of the skull of the set user.

In some embodiments, the earpiece 700 is configured to slide along the direction of extension of the headset strap 100 to fit the skull size of different setting users, thereby improving the applicability of the wireless playback device.

It will be appreciated that when the position of the earpiece 700 on the earphone band 100 is determined, the position of the earpiece 700 on the earphone band 100 may be locked by friction between the earpiece 700 and the earphone band 100.

In a further embodiment, as shown in fig. 5, the end of the earphone band 100 is provided with a first latch 104; the earphone 700 is provided with the second latch 601, the second latch 601 and the first latch 104 are clamped to limit the position of the earphone 700 on the earphone band 100, and then when the earphone 700 is used for the first time by a user, the position of the earphone 700 on the earphone band 100 can be adjusted according to the length and the width of the head of the user, and the position of the earphone 700 on the earphone band 100 is locked by the clamping of the second latch 601 and the first latch 104, so that the position of the earphone 700 on the earphone band 100 does not need to be adjusted again when the earphone 700 is used next time.

In particular, the first latch 104 and the second latch 601 may be made of a material having elasticity, such as rubber or plastic, so that the position of the earpiece 700 on the earphone band 100 can be adjusted by deformation of the first latch 104 and the second latch 601; on the other hand, when the position of the earphone 700 on the earphone band 100 is determined, the first latch 104 and the second latch 601 can be restored to the original shape due to their own elasticity and then be clamped together, so as to lock the position of the earphone 700 on the earphone band 100.

Specifically, in order to facilitate connection between the earphone band 100 and the earphone 700, as shown in fig. 5, an installation groove 103 is provided at one end of the earphone band 100 near the earphone 700; the wireless broadcasting device is set to further include a connecting frame 600, one end of the connecting frame 600 can be slidably inserted in the mounting groove 103 along the extending direction of the earphone band 100, the other end of the connecting frame is hinged on the earphone 700, the second latch 601 is arranged on the connecting frame 600, and the first latch 104 is arranged inside the mounting groove 103 and is opposite to the second latch 601.

Specifically, the hall sensor 105 is also disposed in the mounting groove 103.

In other embodiments, the wireless broadcasting device is configured to further include a first magnet 210, where the first magnet 210 is rotatably disposed on the earphone band 100; the earphone 700 synchronously drives the first magnet 210 to rotate when sliding along the extending direction of the earphone band 100 so as to change the included angle between the magnetic induction line generated by the first magnet 210 and the hall sensor 105.

Specifically, the first magnet 210 is provided as a bar magnet.

Specifically, the calculation formula of the hall voltage of the hall sensor 105 is:

in (1) the->Is Hall voltage; />Is sensitive and is，/>Is the hall coefficient, which is related only to the nature of the hall sensor 105, +.>Is the thickness of the hall sensor 105; />Is the current flowing through the hall sensor 105; />Is the magnetic induction intensity; />Is the angle between the magnetic induction line and the direction perpendicular to the hall sensor 105.

When the user is set to use the earphone 700 for the first time and the position of the earphone 700 on the earphone band 100 is adjusted according to the length of the head of the user, the earphone 700 synchronously drives the first magnet 210 to rotate, so as to change the included angle between the magnetic induction line generated by the first magnet 210 and the hall sensor 105, and further change the included angle between the magnetic induction line and the direction perpendicular to the hall sensor 105Thereby changing the hall voltage of the hall sensor 105, and at this time, the hall voltage of the hall sensor 105 is the preset hall voltage.

In a further embodiment, as shown in fig. 5 and 7, the wireless broadcasting device is configured to further include a rotating wheel 200, the rotating wheel 200 being rotatably disposed in the mounting groove 103, an outer circumferential wall surface of the rotating wheel 200 being in frictional contact with the earpiece 700, the first magnet 210 being fixedly disposed on the rotating wheel 200, an extension line of the first magnet 210 being disposed perpendicularly to an axis of the rotating wheel 200; initially, the extending direction of the first magnet 210 is set to be perpendicular to the hall sensor 105,the method comprises the steps of carrying out a first treatment on the surface of the As shown in fig. 9, when the user uses the earphone 700 for the first time and adjusts the position of the earphone 700 on the earphone band 100 according to the length of his/her head, the earphone 700 synchronously drives the rotating wheel 200 to rotate through frictional contact, the rotating wheel 200 synchronously drives the first magnet 210 to rotate, and the first magnet 210 rotates to change the included angle between the magnetic induction line generated by the first magnet 210 and the hall sensor 105, thereby changing the magnetic inductionThe angle between the line and the direction perpendicular to the hall sensor 105 is +.>Thereby changing the hall voltage of the hall sensor 105.

Specifically, as shown in fig. 5, a friction surface 602 is provided on the coupling frame 600, and the friction surface 602 is in frictional contact with the rotating wheel 200.

In other embodiments, the earpiece 700 is in use as shown in fig. 1, with a predetermined distance between the two earpieces 700, depending on whether the earpiece 700 is in use with an open state and a closed state; as shown in fig. 8, when not in use, the earpiece 700 is in a retracted state, and the two earpieces 700 are abutted, so that on one hand, the earpiece 700 is prevented from falling off, and on the other hand, the storage occupied area of the earpiece 700 is reduced, and portability is improved.

In a further embodiment, as shown in fig. 8, the wireless broadcasting device is configured to further include a bracket 710, where the bracket 710 is configured in a Y-shape, and one end of the bracket 710 is hinged to the connection frame 600, and the other two ends are respectively hinged to the earpiece 700; when the earphone 700 is in the open state, the extending direction of the bracket 710 is tangential to the extending direction of the earphone band 100, and the extending direction of the bracket 710 is parallel to the surface of the earphone 700, and a preset distance is provided between the two earphones 700; when the earphone 700 is in the retracted state, the extending direction of the bracket 710 and the extending direction of the earphone band 100 are provided with a first preset included angle, a second preset included angle is formed between the extending direction of the bracket 710 and the surface of the earphone 700, and the two earphones 700 are abutted; by providing a stand 710, the earpiece 700 is facilitated to be switched between an open state and a stowed state.

In a further embodiment, the bracket 710 is provided with a second magnet 711, and the second magnet 711 and the first magnet 210 are in a repulsive state.

Specifically, the second magnet 711 may be provided as a bar magnet.

Specifically, as shown in fig. 8, taking the second magnet 711 on the right bracket 710 as an example, the side of the second magnet 711 away from the earpiece 700 may be set as an N pole, and the side of the second magnet 711 facing the earpiece 700 may be set as an S pole; as shown in fig. 7, the side of the first magnet 210 facing the hall sensor 105 may be set as an S pole, the side of the first magnet 210 away from the hall sensor 105 may be set as an N pole, and when the earpiece 700 is in a retracted state, the N pole of the second magnet 711 is opposite to the N pole of the first magnet 210, so that the second magnet 711 and the first magnet 210 are in a repulsive state, on one hand, when the earpiece 700 is in a retracted state, the two brackets 710 have a tendency to move in opposite directions under the magnetic action, and the two brackets 710 synchronously drive the two earpieces 700 to have a tendency to move in opposite directions, so that the two earpieces 700 can be well attached, and dust is prevented from entering the inside of the earpiece 700 to a great extent; on the other hand, in the process of switching the earphone 700 from the stowed state to the open state, the second magnet 711 and the first magnet 210 are in the repulsive state, so that the direction of the force of the second magnet 711 on the stand 710 is gradually switched from the horizontal state to the downward state along the vertical direction, and further, the two stands 710 have a downward movement trend along the vertical direction, and the two stands 710 synchronously drive the two earphones 700 to move downward along the vertical direction, so that the earphone 700 is convenient to switch from the stowed state to the open state.

In some embodiments, as shown in fig. 3, the earphone band 100 is configured to include two parts, and one ends of the two parts, which are close to each other, are hinged by a potentiometer 500 and connected by an elastic member, wherein the potentiometer 500 is electrically connected to the hall sensor 105, and the elastic member is used to make the two earpieces 700 have a tendency to approach each other.

As shown in fig. 9, when the user uses the headphones 700 for the first time and adjusts the opening angle of the two headphones 700 according to the width of the skull of the user, the two headphones 700 synchronously adjust the opening angle of the two earphone belts 100, so that the resistance of the potentiometer 500 is changed, and then the resistance is changed to the current I flowing through the hall sensor 105, thereby changing the hall voltage of the hall sensor 105, and at this time, the hall voltage of the hall sensor 105 is the preset hall voltage.

Specifically, as shown in fig. 3, in order to facilitate connection between the earphone band 100 and the potentiometer 500, the two earphone bands 100 are provided with connection holes 102, the potentiometer 500 is fixedly connected to the connection hole 102 of one earphone band 100, and the potentiometer 500 can be rotatably and partially fixedly inserted into the connection hole 102 of the other earphone band 100; when the opening angle of the two-part earphone band 100 is changed, the potentiometer 500 and the rotatable part of the potentiometer 500 are rotated relatively, so that the resistance of the positioner is changed.

In other embodiments, as shown in fig. 1 and fig. 2, the wireless broadcasting device further includes a protective sleeve 300, where the protective sleeve 300 is sleeved at the connection part of the two-part earphone band 100, so as to protect the potentiometer 500 on one hand, and improve the aesthetic property and wearing comfort of the wireless broadcasting device on the other hand.

In a further embodiment, as shown in fig. 3, a connecting rod 101 is provided on both parts of the earphone band 100; the elastic member is provided as a tension spring 400, one end of the tension spring 400 is fixedly connected to the connecting rod 101 on one part of the earphone band 100, the other end of the tension spring 400 is fixedly connected to the connecting rod 101 on the other part of the earphone band 100, and the tension spring 400 is used for providing driving force for clamping and setting the head of the user by the two earphones 700 so as to prevent the earphones 700 from falling.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims

1. A wireless broadcasting device, characterized in that the wireless broadcasting device comprises:

the earphone belt is provided with earphones at two ends;

an execution component, if the current user is not a set user, stopping playing by the receiver; if the current user is a set user, the earphone continues to play;

the earphone can slide along the extending direction of the earphone band;

the end part of the earphone band is provided with a first latch; the earphone is provided with a second clamping tooth which is clamped with the first clamping tooth to limit the position of the earphone on the earphone belt;

the wireless broadcasting device further comprises a first magnet which can be rotatably arranged on the earphone belt; the earphone synchronously drives the first magnet to rotate when sliding along the extending direction of the earphone belt so as to change the included angle between the magnetic induction line generated by the first magnet and the Hall sensor.

2. The wireless broadcasting device of claim 1, further comprising a rotating wheel rotatably disposed on the earphone band, an outer circumferential wall surface of the rotating wheel being in frictional contact with the earpiece, the first magnet being fixedly disposed on the rotating wheel, an extension line of the first magnet being disposed perpendicularly to an axis of the rotating wheel.

3. The wireless broadcasting device of claim 1, wherein the earpiece has an open state and a closed state, the earpiece being in the open state when in use, the two earpieces having a predetermined distance therebetween; when not in use, the earphones are in a retracted state, and the two earphones are abutted.

4. The wireless playback device of claim 3, further comprising a bracket having one end slidably hinged to the earphone band in the direction of extension of the earphone band and the other end hinged to the earpiece.

5. The wireless broadcasting apparatus of claim 4, wherein a second magnet is provided on the bracket, and the second magnet and the first magnet are in a repulsive state.

6. The wireless broadcasting device of claim 1, wherein the earphone band comprises two parts, wherein one ends of the two parts, which are close to each other, are hinged through a potentiometer and are connected through an elastic member, the potentiometer is electrically connected with the hall sensor, and the elastic member is used for enabling the two receivers to have a tendency to be close to each other.

7. The wireless broadcasting device of claim 6, wherein the elastic member is a tension spring.