WO2017183816A1

WO2017183816A1 - Audio apparatus and control method therefor

Info

Publication number: WO2017183816A1
Application number: PCT/KR2017/003100
Authority: WO
Inventors: 김재원; 박재흥; 김선기; 박운희; 이동재
Original assignee: 삼성전자 주식회사
Priority date: 2016-04-22
Filing date: 2017-03-23
Publication date: 2017-10-26
Also published as: CN107306313B; CN107306313A

Abstract

An audio apparatus and a control method therefor are provided. The present audio apparatus comprises: a vibration part for providing audio using vibration; a sensing part for sensing one or more of the material and the thickness of an object to which the audio apparatus is attached; a pressure regulation part for regulating the pressure that is applied to the object by the vibration part; and a processor for controlling the pressure regulation part in order to regulate the pressure applied to the object by the vibration part based on one or more of the material and the thickness of the object that is sensed by the sensing part.

Description

Audio device and its control method

The present disclosure relates to an audio device and a control method thereof, and more particularly, to an audio device and a control method thereof, which are attached to an object worn by a user to provide audio through vibration.

Recently, helmets are worn at various sites. For example, workers working in a variety of environments, such as construction sites, logging sites, factories, airplane operations, facilities or, in some cases, vehicle operations, must wear helmets. In addition, as the hobby is diversified, such as skiing, inline skating, boarding, cycling, motorcycles, and amusement parks, the general public often needs to wear a helmet.

As described above, a helmet is required in various environments, but when the helmet is used, the ear is covered, and when the ambient noise is very severe, in general, the output audio is often not properly heard. In addition, in the case of using a helmet, it is often not possible to use both hands freely.

In order to solve this problem, there is provided an audio device attached to the helmet to provide audio through vibration. However, there is a problem that it is difficult to provide an optimal sound quality to the user because the sound quality or volume of the audio provided through the vibration is different depending on various factors such as the type and thickness of the helmet.

Disclosure of Invention An object of the present disclosure is to provide an audio device and a method of controlling the same, for detecting optimal characteristics of an object to which an audio device is attached and providing optimal audio according to the characteristics of the object.

According to an embodiment of the present disclosure, an audio device includes: a vibration unit for providing audio using vibration; A sensing unit for sensing at least one of a material and a thickness of an object to which the audio device is attached; A pressure adjusting unit for adjusting the pressure applied to the vibrating unit; And a processor configured to control the pressure controller to adjust the pressure applied by the vibrator to the object based on at least one of the thickness and the material of the object sensed by the sensing unit.

In addition, according to another embodiment of the present disclosure, a control method of an audio device including a vibration unit for providing audio using vibration includes: detecting at least one of a material and a thickness of an object to which the audio device is attached; And adjusting the pressure applied to the object by the vibrator based on at least one of the sensed thickness and material of the object.

According to an embodiment of the present invention as described above, even if the user wears a helmet, the user can be provided with optimal audio according to the characteristics of the helmet worn by the user. In addition, the user may be provided with various user experiences through the audio device attached to the helmet.

1A illustrates an audio device attached to a helmet, in accordance with one embodiment of the present disclosure;

1B is a block diagram schematically illustrating a configuration of an audio device according to an embodiment of the present disclosure;

2 is a block diagram illustrating a configuration of an audio device in detail according to an embodiment of the present disclosure;

3A and 3B are views illustrating a configuration of a vibrator according to one embodiment of the present disclosure;

4A to 4F are diagrams for describing a method of providing an optimal audio signal using an audio device including a vibration unit, according to an embodiment of the present disclosure;

5A and 5B are views for explaining a pressure regulator, according to an embodiment of the present disclosure;

6 to 9 are flowcharts illustrating a control method of an audio device according to various embodiments of the present disclosure;

10A to 10E illustrate an audio device including a plurality of buttons and an attachment portion of the audio device, according to an embodiment of the present disclosure.

11 is a diagram illustrating a system including an audio device and a portable terminal according to an embodiment of the present disclosure, and

FIG. 12 illustrates a system including a plurality of audio devices according to an embodiment of the present disclosure.

Terms used herein will be briefly described and the present invention will be described in detail.

The terminology used in the embodiments of the present invention was selected as widely used as possible terms in consideration of functions in the present invention, but may vary according to the intention or precedent of a person skilled in the art, the emergence of new technologies, etc. . In addition, in certain cases, there is also a term arbitrarily selected by the applicant, in which case the meaning will be described in detail in the description of the invention. Therefore, the terms used in the present invention should be defined based on the meanings of the terms and the contents throughout the present invention, rather than the names of the simple terms.

Embodiments of the present invention may be variously modified and have various embodiments, and specific embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the scope to the specific embodiment, it should be understood to include all transformations, equivalents, and substitutes included in the spirit and technical scope of the invention. In describing the embodiments, when it is determined that the detailed description of the related known technology may obscure the gist, the detailed description thereof will be omitted.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The terms are only used to distinguish one component from another.

Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "consist" are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described in the specification, and one or more other It is to be understood that the present invention does not exclude the possibility of the presence or the addition of features, numbers, steps, operations, components, parts, or a combination thereof.

In an embodiment of the present invention, the module or unit performs at least one function or operation, and may be implemented in hardware or software, or in a combination of hardware and software. In addition, the plurality of modules or the plurality of units may be integrated into at least one module except for the modules or units that need to be implemented with specific hardware, and are implemented as at least one processor (not shown). Can be.

In an embodiment of the present invention, when a part is "connected" with another part, it is not only "directly connected" but also "electrically connected" with another element in between. Also includes. In addition, when a part is said to "include" a certain component, this means that it may further include other components, except to exclude other components unless otherwise stated.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Hereinafter, the present disclosure will be described with reference to the drawings. 1A illustrates an audio device attached to a helmet, according to an embodiment of the present disclosure. First, as illustrated in FIG. 1A, the audio device 100 may be attached to a specific area of the helmet 50 to provide audio to a user through vibration. In this case, the audio device 100 may be attached to an area corresponding to the ear of the helmet 50, but this is only an example and may be attached to any area of the helmet.

In particular, the audio device 100 may vibrate the helmet 50 to which the audio device 100 is attached, and the vibrated helmet 50 may serve as a speaker to provide audio to a user. In detail, the audio device 100 may vibrate the air through the medium (helmet 50) by vibrating the vibration part due to the electromagnetic phenomenon of the coil and the magnet, and provide the audio by the user listening to the vibrated air.

1B is a block diagram schematically illustrating a configuration of an audio device according to an embodiment of the present disclosure. First, the audio device 100 includes a vibrator 110, a sensing unit 120, a pressure controller 130, and a processor 140.

The vibrator 110 may provide audio using vibration. Specifically, the vibrating element may be vibrated through the electromagnetic phenomenon of the coil and the magnet included in the vibrator 110, and the vibration of the vibrating element may be provided to the user as audio through a medium (helmet).

The sensing unit 120 detects at least one of a material and a thickness of the object (ie, the helmet) 50 to which the audio device 100 is attached. In this case, the sensing unit 120 may be implemented as an ultrasonic sensor. Specifically, the sensing unit 120 measures the thickness of the object 50 through a time when the ultrasonic wave generated by the ultrasonic sensor contacts the object 50 and is reflected, and is absorbed when the ultrasonic wave passes through the object 50. The type of the helmet of the object 50 may be determined by measuring the volume of the ultrasonic waves and the volume of the ultrasonic waves that are scattered.

The pressure controller 130 adjusts the pressure applied by the vibrator 110 to the object 50. Specifically, the vibrator 110 provides audio of different sound quality according to the pressure applied to the object 50. In this case, the pressure adjusting unit 130 may provide an optimal sound quality by adjusting the pressure applied to the object 50 by the vibrator 110.

In particular, the pressure adjusting unit 130 is a suspension unit and the suspension unit and the object 50 for supporting the vibration unit 110 according to the pressure data corresponding to the material and the thickness of the object 50 detected by the sensing unit 120. It includes a motor unit for adjusting the distance to the). In this case, as the motor unit adjusts the distance between the suspension unit and the object 50, the pressure applied to the object 50 by the audio device 100 may be adjusted.

The processor 140 controls the overall operation of the audio device 100. In particular, the processor 140 may adjust the pressure applied to the object 50 by the vibrator 110 based on at least one of the thickness and the material of the object 50 detected by the sensing unit 120. 130 can be controlled.

In detail, the processor 140 may search for pressure data corresponding to information on the thickness and material of the object 50 detected by the sensing unit 120 in the storage unit, and control the motor unit based on the detected pressure data. Can be. That is, the processor 140 may adjust the distance between the suspension unit and the object 50 based on pre-stored information (eg, pressure data) so as to provide an optimal sound quality.

In particular, the processor 140 controls the pressure adjusting unit 130 so that the pressure becomes stronger as the thickness of the object 50 is thicker or the material of the object 50 is stronger, and the thickness of the object 50 is thin or the object ( As the material of 50) becomes softer, the pressure adjusting unit 130 may be controlled to weaken the pressure.

Meanwhile, in the above-described embodiment, the pressure data corresponding to the information about the object has been described as being stored in the memory. However, this is only an example, and the pressure data corresponding to the information about the object may be stored in the external server. In this case, the audio device 100 may transmit information about the type and thickness of the object sensed to an external server, and receive pressure data corresponding to the type and thickness of the object from the external server.

Through the audio device 100 as described above, the user can receive the optimal audio according to the characteristics of the helmet worn by the user no matter what helmet is worn.

2 is a block diagram illustrating a configuration of an audio device in detail according to an embodiment of the present disclosure. As shown in FIG. 2, the audio device 100 includes a vibration unit 110, a sensing unit 120, a pressure adjusting unit 130, a microphone 150, a storage unit 160, a communication unit 170, and a plurality of units. Includes a button 180, an attachment unit 190, and a processor 140. On the other hand, the configuration of the audio device 100 shown in FIG. 2 is only an example, and is not necessarily limited to the above-described block diagram. Therefore, according to the type of the electronic device 100 or the purpose of the electronic device 100, a part of the configuration of the electronic device 100 shown in FIG. 2 may be omitted, modified, or added.

The vibrator 110 generates vibration to provide audio. In this case, the vibrator 110 may not only provide a vibration corresponding to the audio received from the outside, but may also provide a vibration corresponding to the notification audio for various information.

In particular, the vibrator 110 vibrates the medium (helmet 50) through the vibrating element to provide audio to the user. 3A and 3B are views illustrating a configuration of a vibrator according to an exemplary embodiment of the present disclosure. First, as shown in FIG. 3A, the vibrator 110 includes a vibrating element 111, a coil 113, a first vibration blocking plate 115, a vibration transmission plate 117, and a second vibration blocking plate 119. ).

The vibration element 111 generates vibration through an electromagnetic field phenomenon with the coil 113. At this time, the vibration element 111 generates vibration to provide audio through a medium. The vibration element 111 may be housed by the suspension portion 131, as shown in FIG. 3B. In addition, the vibration element 111 may generate a vibration having a vibration intensity and a vibration pattern corresponding to the current flowing through the coil 113.

The coil 113 generates vibration of the vibrating element 111 through the electromagnetic field phenomenon with the magnet.

The first vibration blocking plate 115 may not only block vibrations and noises generated from the outside, but also prevent the vibrations generated from the vibration element 111 from spreading to the outside. That is, the first vibration blocking plate 115 may block the transmission of the vibration generated by the vibration element 111 to the second surface of the audio device facing the first surface facing the helmet.

In this case, the first vibration blocking plate 115 may be implemented as stainless steel, but is not limited thereto.

The vibration transmission plate 117 is disposed on the first surface of the audio device 100 facing the helmet so as to be located in an area portion in contact with the external medium, and the vibration generated from the vibration element 111 may be applied to the external medium (for example, Helmet). In this case, as shown in FIG. 3B, the vibration transmission plate 117 may be in contact with the vibration element 111 to transmit the vibration generated by the vibration element 111 to the object 50.

The second vibration blocking plate 119 is located at the side of the vibration transmission plate 117 and transmits the vibration from the vibration transmission plate 117 to the object 50 so that the vibration of the vibration transmission plate 117 is transmitted to the outside. And the vibration of the vibration transmission plate 117 may be directed toward the object 50.

That is, through the structure as shown in Figure 3a, the user can remove the noise that may occur in the vibration transmission process through the first vibration blocking plate 113 and the second vibration blocking plate 119, only the user You will hear the audio.

Referring back to FIG. 2, the sensing unit 120 obtains a sensing value through various sensors. In particular, the sensing unit 120 may obtain a sensing value for sensing at least one of a material and a thickness of the object 50 to which the audio device 100 is attached. In detail, the sensing unit 120 may be implemented as an ultrasonic sensor, and senses a sensing value for sensing at least one of a material and a thickness of the object 50 to which the audio device 100 is attached using an ultrasonic flaw detection method. Can be obtained. At this time, the ultrasonic flaw detection method is a method of detecting the discontinuity present in the test body by sending the ultrasonic wave into the test body, and the amount of energy reflected from the discontinuity in the test body and the transmitted ultrasonic wave are reflected from the discontinuity through the test body and returned. It is a method to measure the shape of an object by comparing the time difference until the ultrasonic wave penetrates the test object with the appropriate standard data. That is, the processor 140 may determine the cross section of the object 50 based on the sensing values obtained by the ultrasonic sensor.

Specifically, as illustrated in FIG. 4A, the sensing unit 120 is generated by the ultrasonic sensor when the ultrasonic wave 410 generated by the ultrasonic sensor is reflected by contacting the object 50 (420). The thickness of the object 50 may be measured by measuring the time Δt reflected after contact. In this case, the thickness of the object 50 may be determined by Equation 1 below.

Equation 1

At this time, D is the thickness of the object 50, Δt is the time when the ultrasonic wave is reflected and returned, α is the propagation velocity coefficient for each material of the object 50. For example, the propagation velocity factor of the object 50 made of industrial plastic is 1.4 to 2.4 mm / us, and the propagation velocity factor of the object 50 mixed with the fleecene and sport plastic is 2.388 mm / us. The propagation velocity coefficient for each type of object (ie, material) may be measured and stored in the storage 160.

In addition, when the ultrasonic wave generated by the ultrasonic sensor passes through the object 50, the processor 140 measures the volume of the absorbed ultrasonic wave and the volume of the scattered ultrasonic wave to check the layer of the object 50, and then stores previously stored sample data. Compare your helmet with the type of helmet.

In detail, as illustrated in FIG. 4E, the storage unit 160 may store a transmission rate (that is, a ratio of the volume of the absorbed ultrasonic wave and the volume of the ultrasonic wave that is scattered) according to the type of each object 50. At this time, the delivery rate may be stored in the storage unit 160 previously measured values measured by the laboratory.

In addition, the sensing unit 120 measures the volume of the ultrasonic wave absorbed by the object 50 and the volume of the scattered ultrasonic wave, and the processor 140 measures the ratio of the measured volume of the ultrasonic wave absorbed and the volume of the ultrasonic wave scattered. The type of the object 50 may be determined by comparing the previously stored transmission rate.

On the other hand, according to an embodiment of the present invention, it is possible to implement the ultrasonic sensor using one of the vertical transducer, the square transducer, the aerial ultrasonic sensor. On the other hand, according to an embodiment of the present invention, the ultrasonic sensor 430 may be located on the side of the vibration unit 110, as shown in FIG. That is, since the ultrasonic sensor 430 is located as close to the vibrator 110 as possible, the processor 140 may determine the type and thickness of the object in the region corresponding to the vibrator 110 of the helmet 50. In addition, the sensing unit 120 may include various sensors in addition to the ultrasonic sensor. Specifically, the sensing unit 120 may include a noise sensor for sensing external noise, and includes a motion sensor for detecting a movement of the audio device 100, a motion sensor for detecting a user's motion, and the like. can do. In addition, the sensing unit 120 may include various sensors for sensing the surrounding environment of the audio device 100.

On the other hand, according to an embodiment of the present invention, as shown in Figure 4c, the shield 440 may be disposed around the vibrator 110. That is, the shield 440 may prevent the audio from being transmitted to the outside by compressing the vibrator 110 and the medium (ie, the helmet) 50 as illustrated in FIG. 4D. In this case, the shielding portion 440 may be formed of a rubber or silicon material. The pressure adjusting portion 130 is configured to adjust the pressure applied by the vibrator 110 to the object 50. According to the pressure applied by the vibrator 110 to the object 50 or the area in which the vibrator 110 contacts the object 50, audio of different sound quality is provided.

Therefore, the pressure controller 130 may mechanically adjust the pressure applied by the vibrator 110 to the object 50 under the control of the processor 140 in order to provide optimal sound quality.

Specifically, as shown in FIG. 5A, the pressure adjusting unit 130 includes a suspension unit 131, a motor unit 133, and a worm gear 135. In this case, the suspension part 131 supports the vibration part 110 and can alleviate the shock applied to the vibration part 110. In addition, the suspension unit 131 may be adjusted to a distance from the object 50 by the motor unit 133 and the worm gear 135. The motor unit 133 controls the distance between the object 50 and the suspension unit 131 by manipulating the worm gear 135 under the control of the processor 140. That is, when the worm gear 135 is operated in the first direction (eg, downward direction), the motor unit 133 may adjust the distance between the object 50 and the suspension unit 131 to be farther away. In addition, when the worm gear 135 is operated in the second direction (eg, downward direction), the motor unit 133 may adjust the distance between the object 50 and the suspension unit 131 to be narrowed. That is, the pressure adjusting unit 130 may adjust the pressure applied to the object 50 by the vibration unit 110 by adjusting the distance between the object 50 and the suspension unit 131.

* Meanwhile, in the above-described embodiment, the pressure adjusting unit 130 has been described as adjusting the distance between the suspension unit 131 and the object 50 automatically by the processor 140, but this is only an example. In order to obtain an optimal sound while the reference sound wave is emitted into the helmet, the distance between the suspension unit 131 and the object 50 may be manually adjusted. In this case, as shown in FIG. 5B, the pressure adjusting unit 130 may include a jog shuttle 137 to adjust the distance between the object 50 and the suspension unit 131. However, this is only an example, and the distance between the object 50 and the suspension unit 131 may be manually adjusted in various manual manners such as a button.

In addition, the pressure controller 130 may include both the motor unit 133 and the jog shuttle 137. In this case, when the automatic mode is set by the user, the pressure controller 130 may adjust the pressure applied by the vibrator 110 to the object 50 by using the motor unit 133. In addition, when the manual mode is set by the user (or when the type or thickness of the pre-stored object is not determined by the sensing value obtained by the sensing unit 120), the pressure adjusting unit 130 may perform the jog shuttle 137. By using the vibration unit 110 may adjust the pressure applied to the object (50).

Meanwhile, the pressure adjusting unit 130 may adjust the pressure applied to the object 50 by the vibrator 110, but this is only an example and adjusts the area in which the vibrator 110 contacts the object 50. Can be. That is, the pressure adjusting unit 30 may adjust an area in which the vibrator 110 contacts the object 50 by adjusting the distance between the object 50 and the suspension unit 131.

The microphone 150 receives a voice of a user. In particular, the user voice received through the microphone 150 may be transmitted to the external terminal through the communication unit 170.

On the other hand, the microphone 150 may be provided in the audio device 100, but this is only an example, and may be implemented as a microphone connected to the audio device 100 by wire or wirelessly.

In addition, the microphone 150 may be provided with a windscreen using a thin net such as a sponge or stockings to block noise such as wind noise.

The storage unit 160 stores various modules for driving the audio device 100. For example, the storage 160 may store a base module, a sensing module, a communication module, software including a service module, and the like. In this case, the base module is a basic module that processes a signal transmitted from each hardware included in the audio device 100 and transmits the signal to an upper layer module. The sensing module collects information from various sensors and analyzes and manages the collected information. The service module is a module that performs various services based on the collected sensing information.

As described above, the storage unit 160 may include various program modules, but various program modules may be partially omitted, modified, or added according to the type and characteristics of the audio device 100. For example, when the display is included in the audio device 100, the storage 160 may include various modules such as a UI module and a presentation module.

The storage unit 160 also stores standard data for determining the type of the object 50. That is, the storage 160 may map and store information about the transmission rate of the ultrasound and information about the type of the object in order to determine the type of the object 50.

In addition, the storage unit 160 stores pressure data for providing optimal audio according to the thickness and type of the object 50. For example, the storage unit 160, as shown in Table 1 below, may store a table in which the type, thickness, and pressure data of the object are matched.

Table 1

Type and thickness of the object	Pressure data
Ski Helmet (25mm) (PC + EPP + Cloth)	230 g
Industrial Helmet (12mm) (ABS + EPP)	124 g
Ski helmet (27mm) (ABS seat + foam PU)	282 g
Bike helmets (30mm) (glass fiber reinforced plastic + compression reinforced foam)	260 g
Bike helmet (48 mm) (ABS + EPP + sponge + cloth)	330 g
Bicycle Helmet (20mm) (PC + EPS)	189 g

According to another exemplary embodiment of the present invention, the storage unit 160 may include data other than the thickness and type of the object 50 and pressure data for controlling the motor unit 133 (for example, the object 50 and the object 50). The data on the distance between the suspension unit 131 and the movement distance data of the worm gear 135 may be mapped and stored. In this case, the thickness and type of the object 50 and the pressure data or other data information for controlling the motor unit 133 may be sample data measured in a laboratory to provide an optimal sound quality.

The storage unit 160 may be implemented as a nonvolatile memory or a volatile memory.

The communication unit 170 is a component that performs communication with various types of external devices according to various types of communication methods. The communication unit 230 may include various communication chips such as a Wi-Fi chip, a Bluetooth chip, an NFC chip, a wireless communication chip, and the like. At this time, the WiFi chip, the Bluetooth chip, and the NFC chip communicate with each other via WiFi, Bluetooth, and NFC. Among these, the NFC chip refers to a chip that operates in a near field communication (NFC) method using a 13.56 MHz band among various RF-ID frequency bands such as 135 kHz, 13.56 MHz, 433 MHz, 860-960 MHz, and 2.45 GHz. In the case of using a Wi-Fi chip or a Bluetooth chip, various connection information such as SSID and session key may be transmitted and received first, and then various communication information may be transmitted and received by using the same. The wireless communication chip refers to a chip that performs communication according to various communication standards such as IEEE, Zigbee, 3rd Generation (3G), 3rd Generation Partnership Project (3GPP), Long Term Evoloution (LTE), and the like.

In particular, the audio device 100 may perform a direct telephone call with an external terminal through a wireless communication module. In addition, the audio device 100 may establish a phone call with an external terminal by connecting a Bluetooth communication with a portable terminal of a helmet wearer existing nearby. That is, the audio device 100 may receive audio data from an external terminal through the mobile terminal, and transmit a user voice input to the audio device 100 to the mobile terminal.

In addition, the communicator 170 may receive alarm information (for example, a message alarm) from the wearer's portable terminal, and the processor 140 may output the audio alarm based on the received alarm information. ) Can be controlled.

The plurality of buttons 180 may be physically implemented on the audio device 100. In this case, the plurality of buttons 180 may correspond to a plurality of functions and a plurality of contacts, respectively. For example, as illustrated in FIG. 10A, the audio device 100 may include a first button 1010, a second button 1020, and a third button 1030.

In this case, the first button 1010 may correspond to a first function (for example, a communication connection function) and may correspond to a first contact. In addition, the second button 1020 may correspond to a second function (for example, a battery remaining amount checking function) and may correspond to a second contact. In addition, the third button 1030 may correspond to a third function (for example, a current time and weather information alarm function) and may correspond to a third contact.

In this case, when the user presses one of the plurality of

buttons

1010, 1020, and 1030, the processor 140 performs a function corresponding to the pressed button or compares the time when the user presses the button with a preset time. You can request a call to the contact corresponding to the button. For example, when an input of detecting a user pressing the first button 1010 shorter than a predetermined time is detected, the processor 140 performs a communication connection function, and the user presses the first button 1010 for a predetermined time or more. When the input is detected, the processor 140 may request a phone call to an external portable terminal corresponding to the first contact. As another example, when an input for detecting a user pressing the first button 1010 shorter than a preset time is detected, the processor 140 requests a phone call to an external mobile terminal corresponding to the first contact, and the user requests the first button. When an input of pressing 1010 for a predetermined time or longer is detected, the processor 140 may perform a communication connection function.

In addition, the audio device 100 may provide a notification to the user. User notifications may be active notifications and passive notifications. In the case of the active notification, when the user presses a specific button of the plurality of buttons 180, the notification is immediately activated, so that the user desired information (for example, weather, time, battery level, etc.) TTS (Text to Speech; Text-to-speech). On the other hand, in the case of the passive notification, for example, when the user selects a service, such as a message, an email, a schedule, or the like through a mobile terminal application dedicated to the audio device 100, the service information is provided when the selected service is activated. After analyzing, the TTS notification may be provided to the audio device 100. For example, if a user selects a messenger app as an application dedicated to the audio device 100, when a message is received in the messenger app, the sender of the message and the contents of the message may be provided to the TTS. The notification function may be configured to operate in response to a service in which each of the plurality of buttons 180 is activated, and one button of the plurality of buttons 180 may be in charge of several service functions.

In addition, the audio device 100 may further include a button for adjusting a volume and a power button.

Meanwhile, an indicator indicating a corresponding function may be formed on the plurality of

buttons

1010, 1020, and 1030. For example, a button corresponding to a call function may be formed with an indicator in the form of a telephone, and a button corresponding to a text message confirmation function may be formed with an indicator in the form of a text message.

The attachment unit 190 may be configured to attach the audio device 100 to an object 50 (eg, a helmet). In particular, the attachment unit 190 may generate the electromagnet using the power of the speaker, and then attach the audio device 100 to the object 50 using the electromagnet. However, this is only an example, and the attachment unit 190 may attach the audio device 100 to the object 50 using another method.

According to an embodiment of the present invention, as shown in FIG. 10B, the first attachment portion 1040 is fixed to the helmet 50, and the second attachment portion 1050 is fixed to the body of the audio device 100. Can be. In addition, the first attachment part 1040 and the second attachment part 1050 may be attached (or connected) to each other so that the audio device 100 may be attached to the helmet 50. In this case, the first attachment portion 1040 may be implemented with a double-sided tape or a magnet.

According to another embodiment of the invention, the attachment portion 190 may be implemented using a threaded structure 1060, as shown in 10c, as shown in Figure 10d, hook structure 1070 It may be implemented using, as shown in Figure 10e, it may be implemented using a leaf spring structure (1080).

As another example, after attaching to the object 50 as an attachable auxiliary speaker, the object 50 in the form of a clip to fit the clip of the vibrator speaker in the groove of the auxiliary sticker, a form used when attaching the navigation to the vehicle 50 In the case of using the goggles when the object 50 is used by pressing and attaching to the surface, it may be implemented as a band insertion form incorporating a vibrating speaker inside the goggle band of the ear portion.

The processor 140 controls the overall operation of the audio device 100 using various programs stored in the storage 160.

The processor 140 includes a RAM 141, a ROM 142, a main CPU 144, first to n interface 145-1 to 145-n, and a bus 146 as shown in FIG. 2. do. In this case, the RAM 141, the ROM 142, the main CPU 144, and the first to n-th interfaces 145-1 to 145-n may be connected to each other through the bus 146.

The ROM 142 stores a command set for system booting. When the turn on command is input and the power is supplied, the main CPU 144 copies the O / S stored in the storage unit 160 to the RAM 141 according to the command stored in the ROM 142 and executes O / S. Boot the system. When booting is completed, the main CPU 144 copies various application programs stored in the storage unit 160 to the RAM 141, and executes the application programs copied to the RAM 141 to perform various operations.

The main CPU 144 accesses the storage 160 and performs booting using the operating system stored in the storage 160. The main CPU 144 performs various operations using various programs, contents, data, and the like stored in the storage 160.

The first to n interfaces 145-1 to 145-n are connected to the various components described above. One of the interfaces may be a network interface connected to an external device via a network.

In addition, although not shown in FIG. 2, according to an embodiment of the audio device 100, the audio device 100 may include a display for displaying various information. In this case, the display may be a touch display capable of sensing a user touch.

Hereinafter, a method of controlling the audio device 100 according to various embodiments of the present disclosure will be described with reference to FIGS. 6 to 9.

6 is a flowchart illustrating a control method for providing the audio of the optimal sound quality by the audio device 100 according to an embodiment of the present disclosure.

First, the audio device 100 detects at least one of a material and a thickness of the object 50 to which the audio device 100 is attached (S610). In this case, as described above, the audio device 100 may detect at least one of a material and a thickness of the object 50 to which the audio device 100 is attached by using the ultrasonic sensor of the sensing unit 120.

The audio device 100 adjusts the pressure applied to the object by the vibrator 100 based on at least one of the thickness and the material of the detected object 50 (S620).

In detail, the processor 140 may search the storage unit 160 for pressure data corresponding to information about the detected thickness and material of the object 50. For example, if the type of the detected object is a ski helmet 25 mm (PC + EPP + cloth), the processor 140 may search 230 g as pressure data corresponding to the ski helmet 25 mm. In addition, the audio device 100 may control the motor unit 133 based on the pressure data.

In this case, the processor 140 controls the pressure adjusting unit 130 so that the pressure becomes stronger as the thickness of the object 50 is thicker or the material of the object 50 is stronger, and the thickness of the object 50 is thinner or the object ( As the material of 50) becomes softer, the pressure adjusting unit 130 may be controlled to weaken the pressure. That is, the processor 140 controls the motor unit 133 so that the distance between the suspension unit 131 and the object 50 is closer as the thickness of the object 50 is thicker or the material of the object 50 is harder. As the thickness of the object 50 is thinner or the material of the object 50 is thicker, the pressure control unit 130 may be controlled by the motor unit 133 so that the distance between the suspension unit 131 and the object 50 increases. By the control method as described above, the audio device 100 can provide the optimum audio even if the audio device 100 is attached to any helmet.

Meanwhile, according to another embodiment of the present invention, the processor 140 may change the pressure applied to the object by the vibrator 110 according to the type of medium and the frequency of audio provided in addition to the thickness. In detail, as illustrated in FIG. 4F, a different sound pressure level (SPL) may be provided according to the pressure applied to the object by the vibration unit 110 for each frequency. Therefore, the processor 140 may change the pressure applied by the vibrator 110 to the object 50 according to the frequency of the input audio. For example, when an audio signal of 1500 kHz is provided, the processor 140 may control the pressure regulating unit 130 such that the pressure applied to the object by the vibrator 110 is 100 g. According to an embodiment, a flowchart for describing a method of controlling audio volume according to external noise is illustrated.

First, the audio device 100 may measure external noise using a noise sensor (S710).

Then, the audio device 100 may adjust the volume of the audio according to the external noise measured by the noise sensor (S720). In detail, the processor 140 may adjust the audio volume according to the magnitude of external noise. For example, the processor 140 may measure the volume of noise generated in the surroundings (dB) and automatically adjust to an appropriate volume greater than the measured volume (dB) to provide an optimal volume of audio. In this case, the processor 140 may measure and store a basic user average call volume, and provide audio having an optimal volume based on the stored user average call volume. In other words, by providing audio that is louder than the current noise without significantly deviating from the user average call volume, the user can be provided with the audio having the optimum volume without a separate user operation.

8 is a flowchart illustrating a method for providing user voice by filtering external noise according to an embodiment of the present disclosure.

First, the audio device 100 may receive a user voice through the microphone 150 while talking to an external terminal (S810).

In operation S820, the audio device 100 may determine a sound wave of external noise while a user voice is input.

The audio device 100 may generate sound waves for removing sound waves of external noise (S830). In detail, the processor 140 determines external noise among audio received through the microphone 150, generates sound waves that are opposite to sound waves of the external noise, and synthesizes the external noise with the user's voice received through the microphone 150. Only the external terminal can be transmitted. As a result, the user can provide the user terminal with the optimal sound quality to the external terminal.

Meanwhile, according to another exemplary embodiment of the present invention, the audio device 100 may provide audio of a specific frequency band by filtering external noise so that only audio (for example, horn sound) of a specific frequency band is heard in addition to the user's voice. In detail, when audio of a predetermined value or more is detected in the time domain, the audio device 100 may perform frequency analysis (for example, short time fourier transform (STFT)) on the received audio. In addition, the audio apparatus 100 may determine whether audio of a specific frequency band has occurred by comparing the frequency of the audio at the present time with the frequency of the audio within a predetermined section. The audio device 100 may provide only audio of a specific frequency band by removing noise except audio of a specific frequency band.

9 is a flowchart for describing a method of controlling an attachment force of the audio device 100 according to the movement of the audio device 100, according to an exemplary embodiment.

First, the audio device 100 may detect the movement of the audio device 100 through the motion sensor (S910). For example, the sensing unit 120 may detect a moving speed, shaking, etc. of the audio device 100 using a motion sensor.

The audio device 100 may adjust the magnetism of the electromagnet according to the movement of the audio device 100 (S920). Specifically, the audio device 100 controls the magnetism of the electromagnet included in the attachment unit 190 as the movement of the audio device 100 moves faster or more, so that the audio device 100 always has a constant attachment force. Attachment 190 may be controlled to be attached to 50.

In detail, the audio device 100 may detect speed information of a user who wears the helmet 50 and adjust an attachment force that the audio device 100 fixes (or attaches) to the helmet 50 according to the speed information. . For example, when the helmet is a motorcycle helmet and the user moves on a motorcycle, if a speed above a threshold value is detected, the audio device 100 may increase the magnetic force of the electromagnet of the attachment unit 190 to increase the adhesion. . Therefore, the audio device 100 can be fixed to the helmet 50 even if the user's moving speed is high.

In addition, the audio device 100 may detect whether the user wears the helmet 50 to detect an attachment force to which the audio device 100 is attached to the helmet 50. Specifically, when it is detected that the user does not wear the helmet 50, the user may easily adjust the audio device 100 to be detached from the helmet 50 by reducing the attachment force of the audio device 100.

In addition, the audio device 100 may detect the user motion and adjust the attachment force to which the audio device 100 is attached to the helmet 50, thereby further making the audio device 100 detachable. For example, if a first user motion (eg, a user motion to hit the helmet once) is detected, the audio device 100 increases adhesion and a second user motion (eg, to hit the helmet twice). When the knocking user motion) is detected, the audio device 100 may reduce the attachment force.

Meanwhile, according to another exemplary embodiment of the present invention, when the audio device 100 is attached to the helmet 50, the audio device 100 may receive power from the helmet 50 and perform wireless charging automatically. . In detail, when the helmet 50 includes a solar charging device (eg, a solar cell), the helmet may store power received from the solar charging device. In addition, the audio device 100 may perform wireless charging of the battery by using the stored power. In addition, the audio device 100 may detect an emergency situation (for example, an accident or an emergency situation) of the user and move it to the outside. Emergency information can be sent. For example, when a preset button provided in the audio device 100 is detected, a preset user voice is detected, abnormal biometric information is detected, or a shock at a predetermined value or more is detected, the audio device 100 is urgent for the user. The emergency situation information may be transmitted to an external device (eg, a pre-registered device, a public office, a hospital, etc.) by detecting the situation.

11 is a diagram illustrating a system including an audio device 100 and a mobile terminal 1100 according to an embodiment of the present disclosure. In this case, the portable terminal 1100 may be a portable terminal possessed by a user who wears the object 50 to which the audio apparatus 100 is attached.

First, the audio device 100 may communicate with the mobile terminal 1100. In this case, the audio device 100 may perform a communication connection with the mobile terminal 110 by using a short range communication module such as Bluetooth or Zigbee.

In addition, the audio device 100 may receive a telephone request of an external terminal from the mobile terminal 1100. In this case, the notification of the call request may be provided in an audio form through the vibrator 110. The audio device 100 may receive the other party's voice from the mobile terminal 1100 while the phone call is being performed. In addition, the audio device 100 may transmit a user voice input through the microphone 150 to the mobile terminal 110. That is, the audio device 100 may make a call with an external terminal through the mobile terminal 1100.

In addition, the audio device 100 may receive various notification information from the mobile terminal 1100. In detail, the audio device 100 may receive various alarm information such as message reception information, time alarm information, schedule alarm information, and the like from the mobile terminal 1100.

In addition, the audio device 100 may receive information received from the mobile terminal 1100 as an audio signal through the TTS function. For example, when the mobile terminal 110 receives a text from the outside, the audio device 100 may receive information on the text reception event and provide voice information on the text reception event through the TTS module. have.

In addition, the mobile terminal 110 may receive and provide battery information, usage time information, and location information of users wearing other audio devices from the audio device 100.

In addition, when the portable terminal 1100 that is connectable is detected, the audio device 100 may provide information about the portable terminal 1100 that may be connected. In this case, the audio device 100 may provide information in an auditory form through the vibrator 110, but this is only an example. When the audio device 100 includes a display, the information may be provided in a visual form. Can be provided.

In addition, the audio device 100 may perform communication connection and disconnection with the mobile terminal 1100 using one of the plurality of buttons.

In addition, as illustrated in FIG. 12, the audio device 100 may communicate with another external audio device 1200. In this case, the audio device 100 and the other audio device 1200 may communicate using a short range wireless communication module. For example, in the event of a disaster, the audio device 100 may be attached to each firefighter's helmet for voice communication between the firefighters, and the audio device 100 may communicate with the firefighters. Can be. In addition, when a plurality of personnel, such as military operations or tunnel work, wears a helmet, voice communication may be performed using a plurality of audio devices.

In addition, the audio device 100 may provide an equalizer function by adjusting the output in real time according to the genre (or frequency domain band) of music currently being played.

In addition, when detecting an event (eg, a user motion, a momentary shock, etc.) preset in the helmet 50, the audio device 100 may play and stop music.

Meanwhile, the control method of the audio device according to the above-described various embodiments may be implemented as a program and provided to the user terminal device. Specifically, a non-transitory computer readable medium may be provided in which a program including a control method of a user terminal device is stored.

The non-transitory readable medium refers to a medium that stores data semi-permanently and is readable by a device, not a medium storing data for a short time such as a register, a cache, a memory, and the like. Specifically, the various applications or programs described above may be stored and provided in a non-transitory readable medium such as a CD, a DVD, a hard disk, a Blu-ray disk, a USB, a memory card, a ROM, or the like.

In addition, although the preferred embodiment of the present invention has been shown and described above, the present invention is not limited to the specific embodiments described above, but the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

Claims

In an audio device,

main body;

The main body,

Vibration device for generating vibration,

A vibration transmission unit disposed on one surface of the audio device facing the helmet and transmitting the vibration generated from the vibration element to the helmet;

A first vibration shield disposed around the vibration element, for preventing vibration generated in the vibration element from being transmitted to the second surface of the audio device opposite to the first surface;

A first attachment part attached to the main body of the audio device; And

And a second attachment portion attached to the helmet and connected to the first attachment portion.
The method of claim 1,

And a suspension unit for supporting the vibrating element.
The method of claim 1,

And a second vibration shield disposed on a side of the vibration transmission unit and configured to block transmission of the vibration transmitted by the vibration transmission unit to the side of the audio device.
The method of claim 1,

A communication unit for performing communication with an external device; And

And a processor for controlling the vibration element to generate vibration corresponding to the output audio.
The method of claim 4, wherein

And a microphone for receiving audio including a user voice.

The processor,

The audio device of claim 1, wherein the external noise except for the user's voice is removed from the microphone.
The method of claim 4, wherein

A button;

The processor,

And receiving a user input through the button, controlling the communication unit to transmit a control signal corresponding to the user input to the external device.
The method of claim 4, wherein

It includes; a plurality of buttons,

The processor,

When a user input is received through a first button of the plurality of buttons, the first function corresponding to the first button is performed.

And receiving a user input through the second button, performing a second function corresponding to the second button.
The method of claim 4, wherein

The processor,

And when the event is received from the external device through the communication unit, controlling the vibration device to generate a vibration corresponding to the event.
The method of claim 4, wherein

It further includes a sensor for detecting an external shock,

The processor,

And detecting a shock equal to or greater than a predetermined value through the sensor, controlling the communication unit to transmit information corresponding to the detected shock to an external device.