Vehicle-mounted independent acoustic space system and vehicle
An acoustic space and vehicle technology, applied to vehicle seats, vehicle parts, special positions of vehicles, etc., can solve the problem that multiple occupants in the vehicle cannot enjoy the private sound field environment, and achieve low delay and high accuracy Effect
Active Publication Date: 2021-01-15
CHINA AUTOMOTIVE TECH & RES CENT +1
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Problems solved by technology
[0005] The purpose of the present invention is to provide a vehicle-mounted independent acoustic space system and vehicle to solve the problem in the prior art that multiple occupants in the vehicle cannot enjoy the private sound field environment
Method used
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Embodiment 1
[0094] A vehicle-mounted independent acoustic space system, such as Figure 1-4 As shown, including the vehicle-mounted independent acoustic space device and control system;
[0095] The vehicle-mounted independent acoustic space device includes a first seat headrest and a second seat headrest, the first seat headrest is used to be sleeved on the vehicle main driver's seat headrest 100, and the second seat headrest The headrest is used to cover the headrest 200 of the seat on the right side of the rear row of the vehicle;
[0096] Such as figure 1 As shown, the first seat headrest includes a headrest main body 11, a first rear cover 14, a first protruding portion 111 and a second protruding portion 112, and the headrest main body 11 is connected to the first rear cover 14 and the first protruding portion respectively. The part 111 is connected to the second protruding part 112;
[0097] The headrest main body 11 is used to be sleeved on the top and side of the headrest 100 ...
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The invention relates to a vehicle-mounted independent acoustic space system and a vehicle. The vehicle-mounted independent acoustic space system comprises a vehicle-mounted independent acoustic spacedevice and a control system, and the purpose that a driver and passengers in a vehicle share an independent acoustic environment privately is achieved in the mode that an active control means and a passive control means are combined. The filtering coefficient in the control system is calculated by adopting a sound partition control optimization algorithm based on the ACCPM principle, the optimization algorithm is high in calculation efficiency and stable in numerical value, and the obtained filtering coefficient can greatly change the sound potential energy density distribution in the vehicleon the premise of ensuring that the sound is not excessively distorted; the passive means is the device, by adopting the device, a certain sound insulation effect can be achieved, the sound radiationdirectivity of the loudspeaker can be changed, the sound radiation energy is mainly concentrated in front of the headrest of the automobile seat, and the backward sound radiation is greatly reduced,so that the sound potential energy density distribution in the automobile is changed.
Description
technical field [0001] The invention relates to the field of car audio, in particular to a vehicle-mounted independent acoustic space system and a vehicle. Background technique [0002] At present, in view of the rapid development of sound partition control algorithms and the widespread popularity of various multimedia devices, the development and design of independent acoustic space systems have attracted more and more attention, and its application in the automotive field is in the ascendant. After the car is equipped with an independent acoustic space system, the so-called "bright area" and "dark area" of the sound can be formed in the car (the bright area and the dark area are both for a specific audio, for example: the driver is listening to voice navigation prompt, then for the voice navigation prompt, the driver’s seat is its bright area, and the other seats in the car are its dark area), the drivers and passengers in the car can enjoy the "you listen to music, I call...
Claims
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IPC IPC(8): B60R11/02B60N2/879
CPCB60R11/0217B60N2/879B60R2011/0017
Inventor 张喆张蒙郭正鑫顾灿松陈达亮苏丽俐石岩
Owner CHINA AUTOMOTIVE TECH & RES CENT