A vibration sound system and control method thereof

Abstract

The present invention discloses a vibration sound system and a control method thereof, comprising a vehicle-mounted sound array, which is arranged on a seat backrest, and the vehicle-mounted sound array comprises: a control module that sends the audio data sent by the control device to the audio module for conversion, and amplifies the audio data through the audio amplifier module to output audio information; a connection module, which is used to connect the vehicle-mounted sound and the control device, and the control module connects the vehicle-mounted sound and the control device by selecting a communication channel and detecting the pairing status of the communication channel; a sensor module, which is used to obtain the distance between the seat user and the backrest, and the audio amplifier module adjusts the size of the power amplifier sound field of the sound according to the distance between the seat user and the backrest, so that the sound waves of the audio information are radiated into the car. The present application uses the audio amplifier module to adjust the size of the power amplifier sound field of the sound according to the distance between the seat user and the backrest, so that the sound waves of the audio information are radiated into the car, thereby enhancing the interactive experience between the user and the sound.

Description

Technical Field

[0001] The present invention relates to the technical field of audio equipment, in particular to a vibration audio system and a control method thereof. Background Art

[0002] With the continuous advancement of modern technology, people have higher and higher requirements for audio playback equipment, and traditional speakers can no longer meet the growing market demand. Vibration sound systems can rely on air as a medium for sound propagation, and the signal can directly act on contact objects, allowing sound to propagate in objects. Vibration sound provides a new way of interaction and enhances user experience.

[0003] Existing audio connection methods are single and can only be connected via wired or Bluetooth. Bluetooth connection is easily interfered by other wireless devices. Users cannot flexibly choose the most appropriate connection method according to different usage scenarios and device characteristics, which limits the user's usage scope and cannot adjust the frequency response range of the audio according to the environment. Summary of the invention

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a vehicle-mounted vibration audio system and a control method thereof that can provide multiple connection modes and can adjust the audio amplifier according to the distance of the seat user to enhance the user experience.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a vibration sound system, comprising a vehicle-mounted sound array, the vehicle-mounted sound array is arranged on the seat back, and the vehicle-mounted sound array comprises: an audio module, an audio amplification module and a control module, the control module sends the audio data sent by the control device to the audio module for conversion, and amplifies the audio data through the audio amplification module to output audio information;

[0006] A connection module is used to connect the vehicle audio system and the control device. The control module connects the vehicle audio system and the control device by selecting a communication channel and detecting the pairing status of the communication channel.

[0007] The sensor module is used to obtain the distance between the seat user and the backrest. The audio amplifier module adjusts the size of the audio amplifier sound field according to the distance between the seat user and the backrest, so that the sound waves of the audio information are radiated into the car.

[0008] As a further improvement of the present invention: the control module sends the audio data sent by the control device to the audio module for conversion, including: the control module receives the audio data sent by the control device, the audio data includes an audio file, the control module sends the audio file to the audio module for conversion into an audio signal that can be played by the audio amplification module, and the audio amplification module plays the sound to the seat user when receiving the audio signal.

[0009] As a further improvement of the present invention: the connection module includes a wired unit, a WiFi unit and a Bluetooth unit;

[0010] The wired unit is connected to the control device through a line, and the control device sends audio data to the audio module of the vehicle audio system, and controls the audio amplification module to play sound to the seat user when receiving the audio signal;

[0011] When the WiFi unit and the Bluetooth unit are connected to the control device, audio data is sent to the audio module of the vehicle audio system through the mobile device, and the audio amplifier module is controlled to play sound to the seat user when receiving the audio signal.

[0012] As a further improvement of the present invention: the control module selects a communication channel including: determining a connection state of each audio source channel among a plurality of audio source channels, the audio source channels including a wired channel, a WiFi channel and a Bluetooth channel;

[0013] When the audio source channel is determined to be in a connected state, audio data in the audio source channel with a higher priority is obtained according to the priority of the audio source channel, and the audio data is sent to the audio module of the vehicle audio system.

[0014] As a further improvement of the present invention: the audio amplification module also has a sound field adjustment module, which adjusts the size of the audio power amplifier sound field according to the distance between the seat user and the backrest, so that the sound waves of the audio information are radiated into the car.

[0015] As a further improvement of the present invention: the sound field is based on the distance between the seat user and the backrest, specifically: the distance between the seat user and the backrest is obtained by the sensor module, the sound field adjustment module has a sound field adjustment algorithm, the vehicle audio array has multiple sound sources when playing, and the superimposed sound field of the vehicle audio array is calculated using the sound field adjustment algorithm, and the sound field adjustment algorithm is:

[0016]

[0017] r=|r1-r0|

[0018] Where P is the sound field at the initial time t at the sound source of any car audio array, q is the volume velocity at the initial time t at the sound source of any car audio array, k is the wave number, c is the speed of sound, ω is the angular velocity, r is the distance between the seat user and the sensor in the backrest, i is an imaginary unit, and i is satisfied 2 =-1.

[0019] On the other hand, the present invention also provides a vibration sound control method, comprising a vibration sound system as described above, and further comprising the following steps:

[0020] The control module sends the audio data sent by the control device to the audio module for conversion, and amplifies the audio data through the audio amplification module to output audio information;

[0021] The control module connects the vehicle audio system and the control device by selecting a communication channel and detecting the pairing status of the communication channel;

[0022] The audio amplifier module adjusts the size of the audio amplifier sound field according to the distance between the seat user and the seat backrest, so that the sound waves of the audio information are radiated into the car.

[0023] As a further improvement of the present invention: the control module receives audio data sent by the control device, the control module sends the audio file to the audio module for conversion into an audio signal that can be played by the audio amplification module, and the audio amplification module plays the sound to the seat user when receiving the audio signal.

[0024] As a further improvement of the present invention: determining a connection status of each audio source channel among a plurality of audio source channels, the audio source channels including a wired channel, a WiFi channel and a Bluetooth channel;

[0025] When the audio source channel is determined to be in a connected state, audio data in the audio source channel with a higher priority is obtained according to the priority of the audio source channel, and the audio data is sent to the audio module of the vehicle audio system.

[0026] As a further improvement of the present invention: the distance between the seat user and the backrest is obtained by the sensor module, the sound field adjustment module has a sound field adjustment algorithm, the vehicle audio array has multiple sound sources when playing, and the superimposed sound field of the vehicle audio array is calculated using the sound field adjustment algorithm, and the sound field adjustment algorithm is:

[0027]

[0028] r=|r1-r0|

[0029] Where P is the sound field at the initial time t at the sound source of any car audio array, q is the volume velocity at the initial time t at the sound source of any car audio array, k is the wave number, c is the speed of sound, ω is the angular velocity, r is the distance between the seat user and the sensor in the backrest, i is an imaginary unit, and i is satisfied 2 =-1.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] The present invention combines the use of multiple external control devices, which can help users choose the most suitable connection method according to their needs and preferences, and can better solve the problem of multi-device control conflicts, and enable a stable connection between the audio system and the external control device. When the audio system plays sound, a sensor module is used to obtain the distance between the seat user and the backrest, and an audio amplification module is used to adjust the size of the audio amplifier sound field according to the distance between the seat user and the backrest, so that the sound waves of the audio information are radiated into the car, thereby enhancing the interactive experience between the user and the audio system. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the system framework structure of the present invention.

[0033] Figure 2 It is a schematic diagram of the specific structure of the system of the present invention.

[0034] Figure 3 It is a schematic diagram of the method flow of the present invention. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0036] In order to solve the technical problems in the prior art, the present invention is further described in conjunction with the accompanying drawings and embodiments:

[0037] like Figures 1 to 3 As shown, an embodiment of the present invention discloses a vibration audio system, including a vehicle-mounted audio array, which is arranged on a seat back, and the vehicle-mounted audio array includes: an audio module, an audio amplification module and a control module, the control module sends the audio data sent by the control device to the audio module for conversion, and amplifies the audio data through the audio amplification module to output audio information; a connection module, which is used to connect the vehicle-mounted audio and the control device, and the control module connects the vehicle-mounted audio and the control device by selecting a communication channel and detecting the pairing status of the communication channel; a sensor module, which is used to obtain the distance between the seat user and the backrest, and the audio amplification module adjusts the size of the power amplifier sound field of the audio according to the distance between the seat user and the backrest, so that the sound waves of the audio information are radiated into the vehicle.

[0038] The vibration sound system according to the present invention includes a vehicle-mounted sound array, which is distributed on the seat back, and the vehicle-mounted sound array faces the back of the seat user, and when the vehicle-mounted sound array plays, sound vibration will be radiated to the back of the seat user. The vehicle-mounted sound array has an audio module, an audio amplification module, a control module, a connection module and a sensor module, and is interconnected with multiple control devices through the connection module. A combination of multiple external control device usage methods can be used to select the most suitable connection method for users according to their needs and preferences, and can better solve the problem of multi-device control conflicts, and enable a stable connection between the sound and the external control device. When the sound is playing, the sensor module is used to obtain the distance between the seat user and the backrest, and the audio amplification module is used to adjust the size of the sound amplifier sound field of the sound according to the distance between the seat user and the backrest, so that the sound waves of the audio information are radiated into the car, enhancing the interactive experience between the user and the sound.

[0039] In one embodiment of the present application, the control module sends the audio data sent by the control device to the audio module for conversion, including: the control module receives the audio data sent by the control device, the audio data includes an audio file, the control module sends the audio file to the audio module for conversion into an audio signal that can be played by the audio amplification module, and the audio amplification module plays the sound to the seat user when receiving the audio signal. The control system identifies the audio data sent by the control device, parses the audio data, sends the audio file contained in the audio data to the audio module for signal conversion, and converts it into an audio signal that can be played by the audio amplification module, and the audio amplification module plays the sound to the seat user when receiving the audio signal.

[0040] In one embodiment of the present application, the connection module includes a wired unit, a WiFi unit, and a Bluetooth unit;

[0041] The wired unit is connected to the control device through a line, and the control device sends audio data to the audio module of the vehicle audio system, and controls the audio amplification module to play sound to the seat user when receiving the audio signal;

[0042] When the WiFi unit and the Bluetooth unit are connected to the control device, audio data is sent to the audio module of the vehicle audio system through the mobile device, and the audio amplifier module is controlled to play sound to the seat user when receiving the audio signal.

[0043] In this embodiment, interconnection with multiple control devices is achieved through a wired unit, a WiFi unit and a Bluetooth unit respectively, and a combination of various external control device usage methods is adopted. Users can choose the most suitable connection method according to their needs and preferences, and can better solve the problem of multi-device control conflicts and achieve a stable connection between the audio and the external control device.

[0044] Further, the control module comprises, by selecting a communication channel: determining a connection state of each audio source channel among a plurality of audio source channels, the audio source channels comprising a wired channel, a WiFi channel and a Bluetooth channel;

[0045] When the audio source channel is determined to be in a connected state, audio data in the audio source channel with a higher priority is obtained according to the priority of the audio source channel, and the audio data is sent to the audio module of the vehicle audio system.

[0046] In this embodiment, the control levels of the wired unit, WiFi unit and Bluetooth unit are divided, wherein the wired unit has the highest level, and in the WiFi unit and Bluetooth unit, due to the presence of signal interference, there is a signal delay when the WiFi unit and the Bluetooth unit send control signals. Therefore, the WiFi unit and the Bluetooth unit are divided into control levels according to the signal strength, with the strong signal being the first priority and the weak signal being the second priority; when the wired unit, the WiFi unit and the Bluetooth unit send control signals at the same time, the control signals are arranged according to the control level, and the control signals of the control devices with high control levels are output first. When the wired unit, the WiFi unit and the Bluetooth unit send control signals at different times, the control signals of the wired unit are output first. In the case of wired connection, the control device is a vehicle-mounted device connected to the vehicle system. In order to avoid the control signal of the vehicle system from being played, the control signal of the wired unit is firstly played, and other control signals are delayed. The control signals in the WiFi unit and the Bluetooth unit are divided into control levels according to the time sequence, and the control signals in the front are output first, and the control signals in the back are waiting to be output. The external control device connected to the WiFi unit and the Bluetooth unit can be a smart device such as a mobile phone, a tablet, and a computer.

[0047] In one embodiment of the present application, the audio amplification module also has a sound field adjustment module, which adjusts the size of the audio amplifier sound field according to the distance between the seat user and the backrest, so that the sound waves of the audio information are radiated into the car.

[0048] Furthermore, the sound field is based on the distance between the seat user and the backrest, specifically: the distance between the seat user and the backrest is obtained through the sensor module, the sound field adjustment module has a sound field adjustment algorithm, the vehicle audio array has multiple sound sources when playing, and the superimposed sound field of the vehicle audio array is calculated using the sound field adjustment algorithm, and the sound field adjustment algorithm is:

[0049]

[0050] r=|r1-r0|

[0051] Where P is the sound field at the initial time t at the sound source of any car audio array, q is the volume velocity at the initial time t at the sound source of any car audio array, k is the wave number, c is the speed of sound, ω is the angular velocity, r is the distance between the seat user and the sensor in the backrest, i is an imaginary unit, and i is satisfied 2 =-1.

[0052] In this embodiment, when the audio system plays sound, the sensing module is used to obtain the distance between the seat user and the backrest, and the audio amplification module is used to adjust the size of the power amplifier sound field of the audio system according to the distance between the seat user and the backrest, so that the vibration sound waves of the audio information are radiated into the car, thereby enhancing the interactive experience between the user and the audio system. Specifically, since sound has a vibration radiation range during propagation, as the distance increases, the vibration radiation gradually weakens, and the feeling at different distances is also different. The volume of the vehicle audio array is adjusted according to the distance between the seat user and the backrest, which is determined by the amplitude of the vibration of the sound source, and the volume is related to the sound pressure level. The user can control the appropriate volume on the control device, at which the user feels the best comfort, and the control system records the size of the volume, and uses the sensor to obtain the distance between the seat user and the backrest in real time, and controls the sound vibration radiation of the vehicle audio array to be constant to the seat user, so that the seat user's experience is within a constant single range, giving the user a 4D feeling, thereby enhancing the interactive experience between the user and the audio system.

[0053] On the other hand, the present application also provides a vibration sound control method, comprising a vibration sound system as described above, and further comprising the following steps:

[0054] The control module sends the audio data sent by the control device to the audio module for conversion, and amplifies the audio data through the audio amplification module to output audio information;

[0055] The control module connects the vehicle audio system and the control device by selecting a communication channel and detecting the pairing status of the communication channel;

[0056] The audio amplifier module adjusts the size of the audio amplifier sound field according to the distance between the seat user and the seat backrest, so that the sound waves of the audio information are radiated into the car.

[0057] In some embodiments of the present application, the control module receives audio data sent by the control device, and the control module sends the audio file to the audio module for conversion into an audio signal that can be played by the audio amplification module, and the audio amplification module plays the sound to the seat user when receiving the audio signal.

[0058] In some embodiments of the present application, a connection state of each audio source channel among a plurality of audio source channels is determined, the audio source channels including a wired channel, a WiFi channel, and a Bluetooth channel;

[0059] When the audio source channel is determined to be in a connected state, audio data in the audio source channel with a higher priority is obtained according to the priority of the audio source channel, and the audio data is sent to the audio module of the vehicle audio system.

[0060] In some embodiments of the present application, the distance between the seat user and the backrest is obtained by the sensor module, the sound field adjustment module has a sound field adjustment algorithm, and the vehicle audio array has multiple sound sources when playing. The superimposed sound field of the vehicle audio array is calculated using the sound field adjustment algorithm, and the sound field adjustment algorithm is:

[0061]

[0062] r=|r1-r0|

[0063] Where P is the sound field at the initial time t at the sound source of any car audio array, q is the volume velocity at the initial time t at the sound source of any car audio array, k is the wave number, c is the speed of sound, ω is the angular velocity, r is the distance between the seat user and the sensor in the backrest, i is an imaginary unit, and i is satisfied 2 =-1.

[0064] In summary, after reading the present invention document, ordinary technicians in this field can make various other corresponding transformation schemes based on the technical scheme and technical concept of the present invention without creative mental work, which all fall within the scope of protection of the present invention.

Claims

1. A vibration sound system, characterized in that: The vehicle-mounted audio array is provided on the seat back, and the vehicle-mounted audio array includes: an audio module, an audio amplification module and a control module, wherein the control module sends the audio data sent by the control device to the audio module for conversion, and amplifies the audio data through the audio amplification module to output audio information; A connection module is used to connect the vehicle audio system and the control device. The control module connects the vehicle audio system and the control device by selecting a communication channel and detecting the pairing status of the communication channel. The sensor module is used to obtain the distance between the seat user and the backrest. The audio amplifier module adjusts the size of the audio amplifier sound field according to the distance between the seat user and the backrest, so that the sound waves of the audio information are radiated into the car.

2. A vibration sound system according to claim 1, characterized in that: The control module sends the audio data sent by the control device to the audio module for conversion, including: the control module receives the audio data sent by the control device, the audio data includes an audio file, the control module sends the audio file to the audio module for conversion into an audio signal that can be played by the audio amplification module, and the audio amplification module plays the sound to the seat user when receiving the audio signal.

3. A vibration sound system according to claim 2, characterized in that: The connection module includes a wired unit, a WiFi unit and a Bluetooth unit; The wired unit is connected to the control device through a line, and the control device sends audio data to the audio module of the vehicle audio system, and controls the audio amplification module to play sound to the seat user when receiving the audio signal; When the WiFi unit and the Bluetooth unit are connected to the control device, audio data is sent to the audio module of the vehicle audio system through the mobile device, and the audio amplifier module is controlled to play sound to the seat user when receiving the audio signal.

4. A vibration sound system according to claim 3, characterized in that: The control module selects a communication channel including: determining a connection state of each audio source channel among a plurality of audio source channels, the audio source channels including a wired channel, a WiFi channel, and a Bluetooth channel; When the audio source channel is determined to be in a connected state, audio data in the audio source channel with a higher priority is obtained according to the priority of the audio source channel, and the audio data is sent to the audio module of the vehicle audio system.

5. A vibration sound system according to claim 4, characterized in that: The audio amplification module also has a sound field adjustment module, which adjusts the size of the sound field of the audio amplifier according to the distance between the seat user and the backrest, so that the sound waves of the audio information are radiated into the car.

6. A vibration sound system according to claim 5, characterized in that: The sound field is based on the distance between the seat user and the backrest, specifically: the distance between the seat user and the backrest is obtained through the sensor module, the sound field adjustment module has a sound field adjustment algorithm, the vehicle audio array has multiple sound sources when playing, and the superimposed sound field of the vehicle audio array is calculated using the sound field adjustment algorithm, and the sound field adjustment algorithm is: r＝|r1-r0| Where P is the sound field at the initial time t at the sound source of any car audio array, q is the volume velocity at the initial time t at the sound source of any car audio array, k is the wave number, c is the speed of sound, ω is the angular velocity, r is the distance between the seat user and the sensor in the backrest, i is an imaginary unit, and i is satisfied 2 =-1.

7. A vibration sound control method, comprising a vibration sound system as claimed in any one of claims 1 to 6, characterized in that: The following steps are also included: The control module sends the audio data sent by the control device to the audio module for conversion, and amplifies the audio data through the audio amplification module to output audio information; The control module connects the vehicle audio system and the control device by selecting a communication channel and detecting the pairing status of the communication channel; The audio amplifier module adjusts the size of the audio amplifier sound field according to the distance between the seat user and the seat backrest, so that the sound waves of the audio information are radiated into the car.

8. A vibration sound control method according to claim 7, characterized in that: The control module receives audio data sent by the control device, and the control module sends the audio file to the audio module to convert it into an audio signal that can be played by the audio amplification module. When the audio amplification module receives the audio signal, it plays the sound to the seat user.

9. A vibration sound control method according to claim 8, characterized in that: Determine a connection status of each of a plurality of audio source channels, wherein the audio source channels include a wired channel, a WiFi channel, and a Bluetooth channel; When the audio source channel is determined to be in a connected state, audio data in the audio source channel with a higher priority is obtained according to the priority of the audio source channel, and the audio data is sent to the audio module of the vehicle audio system.

10. A vibration sound control method according to claim 9, characterized in that: The distance between the seat user and the backrest is obtained through the sensor module. The sound field adjustment module has a sound field adjustment algorithm. When the vehicle audio array plays, there are multiple sound sources. The superimposed sound field of the vehicle audio array is calculated using the sound field adjustment algorithm. The sound field adjustment algorithm is: r＝|r1-r0| Where P is the sound field at the initial time t at the sound source of any car audio array, q is the volume velocity at the initial time t at the sound source of any car audio array, k is the wave number, c is the speed of sound, ω is the angular velocity, r is the distance between the seat user and the sensor in the backrest, i is an imaginary unit, and i is satisfied 2 =-1.

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