CN113386694B - Directional sound production system arranged in automobile cabin and automobile - Google Patents
Directional sound production system arranged in automobile cabin and automobile Download PDFInfo
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- CN113386694B CN113386694B CN202110742439.1A CN202110742439A CN113386694B CN 113386694 B CN113386694 B CN 113386694B CN 202110742439 A CN202110742439 A CN 202110742439A CN 113386694 B CN113386694 B CN 113386694B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/037—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for occupant comfort, e.g. for automatic adjustment of appliances according to personal settings, e.g. seats, mirrors, steering wheel
- B60R16/0373—Voice control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
- B60H1/00557—Details of ducts or cables
- B60H1/00564—Details of ducts or cables of air ducts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/80—Head-rests
- B60N2/879—Head-rests with additional features not related to head-rest positioning, e.g. heating or cooling devices or loudspeakers
Abstract
The invention provides a directional sound production system arranged in an automobile cabin and an automobile, and aims to solve the problem that an ultrasonic directional sound production device demodulates distance to cause harsh sound or cannot be heard by passengers. The system comprises a plurality of groups of ultrasonic directional sounding devices comprising a left sound channel and a right sound channel, wherein a group of ultrasonic directional sounding devices are respectively arranged in the front area, the top area and the headrest area of each passenger position in the vehicle; for the passenger positions located at the front row of the vehicle, the ultrasonic directional sound-emitting devices arranged at the front area and the top area of each passenger position are arranged in the air-conditioning air pipe at the corresponding position, and the ultrasonic directional sound-emitting devices arranged at the headrest area of each passenger position are arranged in the pipeline preset in the corresponding seat.
Description
Technical Field
The invention belongs to an automobile intelligent NVH technology, and particularly relates to a directional sound production system arranged in an automobile cabin and an automobile.
Background
In recent years, with the development of the automobile industry, the requirements of consumers on the NVH (noise, vibration and comfort) performance of automobiles are higher and higher, especially the arrival of intelligent wave tides of automobile products, the personalized requirements of the consumers and the pursuit of high quality of the sound environment in passenger cabins enable the drivers and passengers to enjoy independent audio spaces respectively without mutual interference, through the personalized exclusive sound effect experience, the driving experience and the entertainment life of the drivers' seats and the passengers in the driving process are greatly improved, and the user experience is enriched. Due to the high directivity of ultrasonic waves, the ultrasonic directional sound production system is carried to become a scheme for realizing the sound partition of the intelligent cabin. A novel sound source system for generating high-directivity audible sound by utilizing the nonlinear effect of ultrasonic waves in the air. According to the method, an audio signal is loaded on a high-frequency ultrasonic signal in an amplitude modulation mode through a nonlinear action principle of air sound propagation, a high-power ultrasonic transducer array is driven, and a high-directivity audio beam is generated while a high-directivity ultrasonic beam is generated. However, the ultrasonic directional sound production system of this type generally requires a demodulation distance of 30-50 cm, and once the system is directly arranged in the head space of the passenger, the passenger cannot hear the audible sound wave, and the heard sound may be very harsh (the frequency is in the transition region between the ultrasonic wave and the audible sound wave).
Disclosure of Invention
The invention provides a directional sound production system arranged in an automobile cabin and an automobile, and aims to solve the problem that an ultrasonic directional sound production device demodulates distance to cause harsh sound or cannot be heard by passengers.
The technical scheme of the invention is as follows:
the invention provides a directional sound production system arranged in a vehicle cabin, comprising:
the ultrasonic directional sounding device comprises a plurality of groups of ultrasonic directional sounding devices including a left sound channel and a right sound channel, wherein the ultrasonic directional sounding devices are respectively arranged in a front area, a top area and a headrest area of each passenger position in the vehicle;
for the positions of the passengers positioned at the front row of the vehicle, the ultrasonic directional sound-producing devices arranged at the front area and the top area of each passenger position are arranged in the air-conditioning air pipe at the corresponding position, and the ultrasonic directional sound-producing devices arranged at the headrest area of each passenger position are arranged in the pipeline preset in the corresponding seat;
for the passenger positions located at the rear row of the vehicle, the ultrasonic directional sound-emitting devices arranged in the front area and the headrest area of each passenger position are arranged in the preset pipelines at the corresponding positions, and the ultrasonic directional sound-emitting devices arranged in the top area of each passenger position are arranged in the air-conditioning air pipes at the corresponding positions.
Preferably, for the position of the passenger at the front row of the vehicle, a group of the ultrasonic directional sound-producing devices is arranged in two air-conditioning ducts of an instrument panel area of the vehicle towards the left ear and the right ear of the passenger at the front row, a group of the ultrasonic directional sound-producing devices is arranged in two air-conditioning ducts of a ceiling area of the vehicle towards the left ear and the right ear of the passenger at the front row, and a group of the ultrasonic directional sound-producing devices is arranged in two preset ducts of a front seat of the vehicle towards the left ear and the right ear of the passenger at the front row;
for the position of the passenger at the rear row of the vehicle, a group of ultrasonic directional sound production devices are arranged in two preset pipelines facing to the left ear and the right ear of the passenger at the rear row on a front row seat of the vehicle, a group of ultrasonic directional sound production devices are arranged in two air conditioning ducts facing to the left ear and the right ear of the passenger at the rear row in a ceiling area of the vehicle, and a group of ultrasonic directional sound production devices are arranged in two preset pipelines facing to the left ear and the right ear of the passenger at the front row and the rear row on the front seat of the vehicle.
Preferably, the distance between the ultrasonic directional sound production device arranged in the air-conditioning air duct and the air outlet of the air-conditioning air duct is more than 30cm, and the distance between the ultrasonic directional sound production device arranged in the air-conditioning air duct and the left ear or the right ear of the passenger closest to the ultrasonic directional sound production device is more than 50 cm;
the distance between the ultrasonic directional sound production device arranged in the pipeline preset in the seat and the outlet of the pipeline is more than 30cm, and the distance between the ultrasonic directional sound production device arranged in the pipeline preset in the seat and the left ear or the right ear of the passenger closest to the ultrasonic directional sound production device is more than 50 cm.
Preferably, each group of ultrasonic directional sounding systems is connected to the car machine control system through a power amplifier.
The invention also provides an automobile which comprises the directional sounding system arranged in the automobile cabin and an air conditioner assembly, wherein the air conditioner assembly is connected with the automobile control system.
The invention has the beneficial effects that:
according to the scheme, the ultrasonic sound generating devices in front of and at the top of each passenger are arranged in the air conditioning air duct at the corresponding position, and the ultrasonic sound generating devices in each headrest area are arranged in the pipeline preset in the seat. According to the scheme, through accurate calculation in arrangement, passengers in the main driving area, the auxiliary driving area, the left rear row area and the right rear row area respectively receive different sound effect directional sound sources sent by air conditioner air outlets and sound outlets in corresponding positions, the problems that sound of an ultrasonic directional sound generating device based on an ultrasonic carrier technology in an automobile is disordered in a transition area and bad in hearing are solved, and passengers in all positions in the automobile can clearly receive the actively directional sound sources are perfectly achieved.
Drawings
FIG. 1 is a schematic layout diagram of an air conditioning duct in the present embodiment;
fig. 2 is a schematic diagram of the ultrasonic directional sound emission system in the present embodiment.
Detailed Description
The invention will be further explained with reference to the drawings.
In the embodiment, a directional sound production system arranged in an automobile cabin is provided, taking a conventional two-row seat passenger car as an example, the automobile passenger cabin is defined into four subareas, wherein a subarea 1 corresponds to a main driver area, a subarea 2 corresponds to an auxiliary driver area, a subarea 3 corresponds to a left-side passenger area in the rear row, and a subarea 4 corresponds to a right-side passenger area in the rear row.
Referring to fig. 1, the air conditioner assembly is provided with four air outlets on the instrument panel facing the left ear and the right ear of the front passenger respectively; four air outlets are respectively arranged on the ceiling towards the left ear and the right ear of the front passenger, and four air outlets are respectively arranged towards the left ear and the right ear of the rear passenger. Three groups of 6 ultrasonic directional sound production devices containing left and right sound channels are arranged for each subarea passenger. The specific implementation mode is as follows:
for the subarea 1, as shown in fig. 1, the two ultrasonic directional sound production devices 1 and 2 are respectively a front sound effect right sound channel and a front sound effect left sound channel, the distance between the front sound effect right sound channel and the front sound channel is at least 30cm from the air outlet of the corresponding instrument desk board air duct, and the distance between the left air outlet and the right air outlet of the instrument desk board air duct and the right ear of a main driver is at least 20 cm; 9. 10, the two ultrasonic directional sound production devices are respectively a sky sound effect right sound channel and a sky sound effect left sound channel, the distance between the two ultrasonic directional sound production devices and the air outlet of a corresponding ceiling air duct is at least 30cm, and the distance between the left air outlet and the right air outlet of a main driving passenger is at least 20 cm; 17. the two ultrasonic directional sounding devices of the 18 ultrasonic directional sounding devices are respectively surround sound effects of a right sound channel and a left sound channel, the two ultrasonic directional sounding devices of the left sound channel and the right sound channel are respectively arranged in independent pipelines arranged inside the main driving seat, the pipelines extend to two sides of a headrest of the seat, the two ultrasonic directional sounding devices of the sounding ports are designed towards human ears and need to be at least 30cm away from the sounding ports, and the distance between the ultrasonic directional sounding devices and the ears of a main driver and a passenger is at least 50 cm.
For the subarea 2, the two ultrasonic directional sound production devices 3 and 4 are respectively a front sound effect left sound channel and a front sound effect right sound channel as shown in fig. 1, the distance between the front sound effect left sound channel and the front sound effect right sound channel and the distance between the front sound effect left sound channel and the front sound effect right channel and the distance between the front sound effect right channel and the front sound effect right channel and the distance between the front sound effect left sound channel and the front sound effect right channel and the front sound effect right channel and the distance between the front sound channel and the front sound effect right channel and the front sound channel of the instrument board are at least 30 cm; 11. 12, the two ultrasonic directional sounding devices are respectively a sky sound effect left sound channel and a sky sound effect right sound channel, the distance between the two ultrasonic directional sounding devices and the air outlet of a corresponding ceiling air duct is at least 30cm, and the distance between the left air outlet and the right air outlet of a passenger on the pilot is at least 20 cm; 19. the two ultrasonic directional sound production devices of 20 are respectively a surround sound effect left sound channel and a surround sound effect right sound channel, and are respectively arranged in independent pipelines arranged inside the vice driving seat, the pipelines extend to the two sides of the headrest of the seat, and two sound production ports are designed towards the ears of a person. The ultrasonic directional sounding device is required to be at least 30cm away from the sounding port, and the ultrasonic directional sounding device is required to be at least 50cm away from the ears of the driver and the passengers.
For the subarea 3, as shown in fig. 1, 5 and 6 two ultrasonic directional sound generating devices are respectively a front sound effect left sound channel and a front sound effect right sound channel, and are respectively arranged in a single pipeline arranged in the main driving seat, the pipeline extends to two sides of a seat headrest, two sound generating ports are designed towards the ears of the left passenger on the rear row, the distance between the ultrasonic directional sound generating device and the sound generating ports is at least 30cm, and the distance between the left sound generating port and the right sound generating port and the left ear and the right ear of the left passenger on the rear row are at least 20 cm; 13. The 14 two ultrasonic directional sound production devices are respectively a sky sound effect left sound channel and a sky sound effect right sound channel, the distance between the left sound channel and the corresponding air outlet of the ceiling air duct is at least 30cm, and the distance between the left air outlet and the right air outlet of the rear row left passenger is at least 20 cm; 21. 22 two directional sound generating mechanism of ultrasonic wave are encircleing the audio left and right sound channel respectively, and in the inside independent pipeline that sets up of back row left side seat was arranged respectively to two directional sound generating mechanism of ultrasonic wave of its left and right sound channel, the pipeline extended to the seat headrest both sides, and two vocal mouths are designed towards people's ear department. The ultrasonic directional sounding device is required to be at least 30cm away from the sounding port, and the ultrasonic directional sounding device is at least 50cm away from the ears of the driver and the passengers.
For the subarea 4, as shown in fig. 1, two ultrasonic directional sound-generating devices 7 and 8 are respectively a front sound effect right sound channel and a front sound effect left sound channel, and are respectively arranged in a single pipeline arranged in the auxiliary driving seat, the pipeline extends to two sides of the headrest of the seat, two sound-generating ports are designed towards the ears of the right passenger on the rear row, the distance between the ultrasonic directional sound-generating device and the sound-generating ports is at least 30cm, and the distance between the left sound-generating port and the right sound-generating port and the left ear and the right ear of the right passenger on the rear row are at least 20 cm; 15. The 16 ultrasonic directional sounding devices are respectively a sky sound effect right sound channel and a sky sound effect left sound channel, the distance between the left sound channel and the corresponding air outlet of the ceiling air duct is at least 30cm, and the distance between the left air outlet and the right air outlet of the rear row right passenger is at least 20 cm; 23. the 24 two ultrasonic directional sound production devices are respectively surround sound effect left and right sound channels, and are respectively arranged in independent pipelines arranged inside the rear-row right seat, the pipelines extend to the two sides of the seat headrest, and two sound production ports are designed towards human ears. The ultrasonic directional sounding device is required to be at least 30cm away from the sounding port, and the ultrasonic directional sounding device is at least 50cm away from the ears of the driver and the passengers.
As shown in fig. 2, each ultrasonic directional sound-emitting device needs to be at least 30cm away from the sound-emitting opening and at least 50cm away from the ear of the passenger at the corresponding position. As shown in the circle of FIG. 2, the root of the guide duct corresponding to each sound-generating device is designed to be a bell mouth. All the ultrasonic directional sounding devices need to face the air outlet or the sounding port, and pipelines between the ultrasonic directional sounding devices and the air outlet or the sounding port cannot have shielding and sound reflecting surfaces.
Each ultrasonic directional sound generating device is connected to the power amplifier through a line, as shown by a dotted line in fig. 2, the vehicle control system is respectively connected with the power amplifier and the air conditioning assembly, and thus the temperature and sound of the cabin are jointly controlled through the vehicle control system.
By the technology, the problem of demodulation distance required by the conventional in-vehicle directional sounding system is solved, and the sound emitted by the corresponding ultrasonic directional sounding device heard by each passenger is audible sound waves and clear. The invention can also realize three functions, firstly, each passenger in the vehicle can receive the sound of three different modes, namely the front sound effect, the sky sound effect and the surrounding sound effect. Secondly, through the partition design, sounds emitted by different devices in different modes and different modes received by each passenger position in the automobile are mutually independent and do not interfere with each other. And thirdly, the temperature and sound combined partitioning scheme provided by the invention also provides a foundation for realizing the communication compensation function of each passenger in the vehicle. The communication compensation function of the passengers in the vehicle is specifically realized in such a way that the voice sent by the passenger A in the vehicle can be clearly and directionally transmitted to the passenger B in the vehicle without being interfered by external noise.
In this embodiment, the zones may be further divided based on the positions of the passengers, for example, a conventional two-row passenger car is divided into five zones, wherein the ultrasonic directional sound generating device arranged in front of the middle passenger in the rear row is installed by using a preset pipeline in the two seats in the front row. For passenger vehicles with more seats, zoning based on occupant position may also be selected.
Embodiments of the present invention also include a vehicle comprising the directional sound production system described above disposed in the vehicle cabin.
Claims (4)
1. A directional sound production system for placement in a vehicle cabin, comprising:
the ultrasonic directional sounding device comprises a plurality of groups of ultrasonic directional sounding devices including a left sound channel and a right sound channel, wherein the ultrasonic directional sounding devices are respectively arranged in a front area, a top area and a headrest area of each passenger position in the vehicle;
for the positions of passengers at the front row of the vehicle, the ultrasonic directional sound generating devices arranged at the front area and the top area of each passenger position are arranged in the air-conditioning air pipe at the corresponding position, and the ultrasonic directional sound generating device arranged at the headrest area of each passenger position is arranged in a pipeline preset in the corresponding seat;
for the passenger positions located at the rear row of the vehicle, the ultrasonic directional sound-producing devices arranged in the front area and the headrest area of each passenger position are arranged in the preset pipelines at the corresponding positions, and the ultrasonic directional sound-producing device arranged in the top area of each passenger position is arranged in the air-conditioning air pipes at the corresponding positions;
the distance between the ultrasonic directional sound production device arranged in the air-conditioning air duct and the air outlet of the air-conditioning air duct is more than 30cm, and the distance between the ultrasonic directional sound production device arranged in the air-conditioning air duct and the left ear or the right ear of the passenger closest to the ultrasonic directional sound production device is more than 50 cm;
the distance between the ultrasonic directional sound production device arranged in the pipeline preset in the seat and the outlet of the pipeline is more than 30cm, and the distance between the ultrasonic directional sound production device arranged in the pipeline preset in the seat and the left ear or the right ear of the passenger closest to the ultrasonic directional sound production device is more than 50 cm.
2. The directional sound generation system of claim 1,
for the position of a passenger positioned at the front row of the vehicle, a group of ultrasonic directional sound-producing devices are arranged in two air-conditioning air pipes facing the left ear and the right ear of the passenger at the front row in the instrument panel area of the vehicle, a group of ultrasonic directional sound-producing devices are arranged in two air-conditioning air pipes facing the left ear and the right ear of the passenger at the front row in the ceiling area of the vehicle, and a group of ultrasonic directional sound-producing devices are arranged in two preset pipelines facing the left ear and the right ear of the passenger at the front row in the front seat of the vehicle;
for the position of the passenger at the rear row of the vehicle, a group of ultrasonic directional sound production devices are arranged in two preset pipelines facing to the left ear and the right ear of the passenger at the rear row on a front row seat of the vehicle, a group of ultrasonic directional sound production devices are arranged in two air conditioning ducts facing to the left ear and the right ear of the passenger at the rear row in a ceiling area of the vehicle, and a group of ultrasonic directional sound production devices are arranged in two preset pipelines facing to the left ear and the right ear of the passenger at the front row and the rear row on the front seat of the vehicle.
3. The system of claim 1, wherein each group of the ultrasonic directional sounding systems is connected to a car machine control system through a power amplifier.
4. A vehicle comprising the directional sound production system of any one of claims 1 to 3 disposed in a vehicle cabin, and further comprising an air conditioning assembly connected to a vehicle control system.
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| CN202110742439.1A CN113386694B (en) | 2021-06-30 | 2021-06-30 | Directional sound production system arranged in automobile cabin and automobile |
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| CN202110742439.1A CN113386694B (en) | 2021-06-30 | 2021-06-30 | Directional sound production system arranged in automobile cabin and automobile |
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| CN113386694B true CN113386694B (en) | 2022-07-08 |
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| CN116582793A (en) * | 2023-07-06 | 2023-08-11 | 苏州清听声学科技有限公司 | Vehicle-mounted audio partition sound effect playing system and method |
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