CN117255284A - Headrest sound adjusting method and device, electronic equipment and storage medium - Google Patents
Headrest sound adjusting method and device, electronic equipment and storage medium Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
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Abstract
The application relates to the technical field of vehicles and provides a headrest sound adjusting method, a headrest sound adjusting device, electronic equipment and a storage medium. The method comprises the following steps: acquiring speed change information of a vehicle; judging whether the speed change information meets a preset range or not; if the speed change information meets the preset range, selecting a corresponding volume adjustment mode based on the speed change information; obtaining a corresponding volume adjustment value based on the volume adjustment mode; based on the volume adjustment value, the volume of the headrest sound is adjusted. According to the method and the device, the corresponding volume adjusting mode is selected according to the speed change information, the volume of the headrest sound is adjusted, the perceived volume of the driver is suddenly increased due to the fact that the relative position of the driver and the headrest sound is changed, the problem that the single ear of the driver is injured is solved, and driving experience is improved.
Description
Technical Field
The present disclosure relates to the field of vehicle technologies, and in particular, to a method and apparatus for adjusting headrest speakers, an electronic device, and a storage medium.
Background
The headrest sound is a brand new playing sound source which is gradually derived in the development process of the intelligent automobile. The function of headrest stereo set is similar to bluetooth headset, can provide comparatively private sound broadcast function for the driver. At present, some vehicles are already provided with headrest sound devices, and a driver can independently hear navigation, music or video sounds without affecting riding experience of passengers.
However, since the position of the headrest speaker is fixed and is close to the ear of the driver, once the relative position of the driver and the headrest speaker changes, the sound effect perceived by the driver will obviously change, for example: when the driver controls the whole vehicle to accelerate, the head of the driver may suddenly come close to the headrest speaker on one side, but the volume of the headrest speaker is not changed at this time, so that the volume heard by the ears on the side of the driver may suddenly increase. This not only affects the driving experience, but may even cause harm to the monaural hearing of the driver.
Disclosure of Invention
In view of this, the embodiments of the present application provide a method, an apparatus, an electronic device, and a storage medium for adjusting a headrest speaker, so as to solve the problem in the prior art that the volume perceived by a driver increases suddenly due to a change in the relative position between the driver and the headrest speaker.
In a first aspect of an embodiment of the present application, a method for adjusting a headrest speaker is provided, including:
acquiring speed change information of a vehicle;
judging whether the speed change information meets a preset range or not;
if the speed change information meets the preset range, selecting a corresponding volume adjustment mode based on the speed change information; the functional relationship of the volume adjustment value in the volume adjustment mode with respect to the shift information is a quadratic function;
Obtaining a corresponding volume adjustment value based on the volume adjustment mode;
based on the volume adjustment value, the volume of the headrest sound is adjusted.
In a second aspect of the embodiments of the present application, there is provided an adjusting device for a headrest speaker, including:
a first acquisition module configured to acquire shift information of a vehicle;
a first judging module configured to judge whether the shift information satisfies a preset range;
the first selecting module is configured to select a corresponding volume adjusting mode based on the speed change information if the speed change information meets a preset range; the functional relationship of the volume adjustment value in the volume adjustment mode with respect to the shift information is a quadratic function;
the first obtaining module is configured to obtain corresponding volume adjustment values based on the volume adjustment mode;
the first adjusting module is configured to adjust the volume of the headrest sound based on the volume adjustment value.
In a third aspect of the embodiments of the present application, there is provided an electronic device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the above method when executing the computer program.
In a fourth aspect of the embodiments of the present application, there is provided a storage medium storing a computer program which, when executed by a processor, implements the steps of the above method.
Compared with the prior art, the embodiment of the application has the beneficial effects that: acquiring speed change information of a vehicle; judging whether the speed change information meets a preset range or not; if the speed change information meets the preset range, selecting a corresponding volume adjustment mode based on the speed change information; obtaining a corresponding volume adjustment value based on the volume adjustment mode; based on the volume adjustment value, the volume of the headrest sound is adjusted. According to the method and the device, the corresponding volume adjusting mode is selected according to the speed change information, the volume of the headrest sound is adjusted, the perceived volume of the driver is suddenly increased due to the fact that the relative position of the driver and the headrest sound is changed, the problem that the single ear of the driver is injured is solved, and driving experience is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following description will briefly introduce the drawings that are needed in the embodiments or the description of the prior art, it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flow chart of a method for adjusting headrest speakers according to an embodiment of the present disclosure;
FIG. 2 is a logic flow diagram for implementing an acceleration adjustment mode according to an embodiment of the present application;
FIG. 3 is a logic flow diagram of an implementation of a first time adjustment mode provided by an embodiment of the present application;
FIG. 4 is a logic flow diagram of an implementation of a deceleration adjustment mode provided by an embodiment of the present application;
FIG. 5 is a logic flow diagram of an implementation of a second time adjustment mode provided by an embodiment of the present application;
fig. 6 is a schematic structural diagram of an adjusting device for a headrest speaker according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system configurations, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
The inventor of the application researches and discovers that in the process of controlling the acceleration of the automobile by a driver, the new energy intelligent automobile is not provided with a gearbox, so that the acceleration value is more stable in the acceleration process of the automobile and is much larger than the acceleration of the traditional oil truck. Thus, the driver and the passengers feel a strong push back feeling during acceleration of the automobile. In this case, the upper body of the driver inevitably clings to the seat due to inertia, and gets deeper into the sofa seat than when it is flat. When the driver normally runs, the back is not necessarily completely attached to the seat, and even if the back is attached, gaps are likely to exist. When the new energy automobile accelerates, the body of the driver can be completely attached to the back by stable and large-value acceleration, and at the moment, the distance between the ears of the driver and the two headrest sounds can be inevitably shortened. If the volume is not actively adjusted, the sound felt by the driver will suddenly increase, which not only affects the driving experience of the driver, but also causes damage to the hearing of the driver.
The inventor of the application research also finds that when the driver controls the automobile to brake, the driver has a tendency to forward stroke due to own inertia, and at the moment, the upper body of the driver is far away from the headrest sound greatly, so that the volume felt by the driver can be suddenly reduced. In this case, the drastic change of the volume does not affect the hearing of the driver, but after the inertia of the driver's front stroke is finished, the upper body of the driver can lean back on the back, and the volume perceived by the driver himself/herself in this process can suddenly increase. This process not only affects the driving experience of the driver, but also to some extent the hearing level of the driver. Thus, during braking or sudden braking by the driver, the driver's body may undergo both a severe forward stroke and a severe return to rest.
Therefore, in the process of controlling the acceleration and the braking of the automobile by the driver, the distance between the head and the headrest sounds at the two sides of the head can be changed due to the movement of the whole upper body of the driver.
In order to avoid that under the condition that a headrest sound works, when a driver changes the posture along with the movement of the whole vehicle, the ear suddenly approaches to a sound on one side to cause the sound intensity felt by the driver to be changed drastically so as to influence experience and even influence hearing, the embodiment of the application provides a headrest sound adjusting method, a headrest sound adjusting device, electronic equipment and a storage medium, and aims to solve the technical problems in the prior art.
A method, an apparatus, an electronic device, and a storage medium for adjusting a headrest speaker according to embodiments of the present application will be described in detail below with reference to the accompanying drawings.
Fig. 1 is a flow chart of a method for adjusting a headrest speaker according to an embodiment of the present application. The method of adjusting the headrest sound of fig. 1 may be performed by the vehicle control device.
As shown in fig. 1, the method for adjusting the headrest speaker includes:
s101, acquiring speed change information of a vehicle;
s102, judging whether the speed change information meets a preset range;
s103, if the speed change information meets the preset range, selecting a corresponding volume adjustment mode based on the speed change information; the functional relationship of the volume adjustment value in the volume adjustment mode with respect to the shift information is a quadratic function;
S104, obtaining a corresponding volume adjustment value based on the volume adjustment mode;
s105, adjusting the volume of the headrest sound based on the volume adjustment value.
According to the embodiment of the application, the volume of the headrest sound is adjusted to the volume adjusting value according to the speed change information, the perceived volume of the driver is suddenly increased due to the fact that the relative position of the driver and the headrest sound changes, the problem of harm to one ear of the driver is solved, and driving experience is improved.
In some embodiments, the shift information may include acceleration values, and may also include deceleration values, vehicle speed, and the like.
In an application scenario, the headrest sound adjusting method based on the vehicle controller in the embodiment of the application specifically includes the following steps:
the headrest sound may include two sides corresponding to the left and right ears of the driver, respectively. In general, the volume of the left side of the headrest sound and the volume of the right side of the headrest sound are equal. Of course, the volume of the left side of the headrest sound and the volume of the right side of the headrest sound may be unequal, and the headrest sound adjusting method of the embodiment of the present application may be applicable to simultaneously adjusting the volumes of the two sides of the headrest sound, and of course, may also be applicable to adjusting the volume of one side of the headrest sound, which is not particularly limited in the present application. In the following description, the simultaneous adjustment of the sound volumes on both sides of the headrest sound is described as an example.
First, a process for determining a preset volume value of the headrest speaker is described, where the preset volume value in this embodiment refers to an adaptive volume or a custom volume of the driver for a low volume.
The volume range of the headrest speaker is assumed to be 0 to 100. The headrest sound can play sound sources such as navigation sound, music, video sound and the like. For the three sound sources, the CDC of the vehicle will estimate the driver's preference for volume by separately recording the set values of the driver for each sound source. The headrest sound adjustment method according to the embodiment of the present application may be described based on the example that the volume values on the left and right sides of the headrest sound are equal and are M, and the value range of M is 0 to 100.
For example, the car CDC records the driver's volume play value preference for music, as follows:
assuming that the reference volume value is 25, when the volume value is 25 or less, the driver is adapted to the volume at low volume. When the driver plays music through the headrest speaker, if the driver first adjusts the play volume value of the music to 25 or less and there is no change in 30 seconds, the vehicle CDC records the data, which is denoted as N1. When the driver plays the music next time and the volume of the music is adjusted to 25 or less and there is no change in 30s, the CDC of the car machine records the data, which is denoted as N2. At this time, the CDC of the vehicle will perform internal logic processing to calculate the average value of N1 and N2, and record as N M 。N M Is defined as driver for lowVolume down-listening to the adapted volume of the music.
Similarly, the driver's adapted volume for listening to the video sound at low volume is denoted as N V The method comprises the steps of carrying out a first treatment on the surface of the The driver's adapted volume for navigation sound at low volume is denoted as N G 。
Illustratively, the driver sets the adaptive volume N of music for low volume every time the driver adjusts the volume once below 25 M Will operate in accordance with the logic described above and will be refreshed once. Adaptive volume N of music M When the vehicle is powered down and powered up again, the vehicle CDC reads the volume value before last power down and repeats the subsequent logic, and the data cannot be zeroed. For a custom volume N for setting the volume of video sound V Custom volume N of navigational sound G And driver's adaptive volume N for setting music at low volume M The processing logic of (c) is the same and will not be described in detail herein.
The adjusting method of the headrest sound provided by the embodiment of the application is that when a driver plays music through the headrest sound, a corresponding volume adjusting curve formula is set, and sound volume values of left and right side channels of the headrest sound are automatically adjusted according to the current acceleration value and deceleration value of the vehicle.
The method for adjusting the headrest sound is suitable for adjusting the volume of sounds such as music, navigation sounds and video sounds. For convenience of description, in the following description, the volume of music of the headrest speaker is adjusted as an example, and the preset volume value is N M . The adjustment of the volume of other sounds such as navigation sounds, video sounds, etc. is also within the scope of the present application.
In one embodiment, the shift information includes an acceleration value, and determining whether the shift information satisfies a preset range includes: judging whether the acceleration value is larger than a first preset value or not; if yes, judging that the acceleration value meets a first preset range; alternatively, the first preset value may be 0.35g, g is gravitational acceleration, and of course, the first preset value may also be other values, for example, 0.3g, 0.4g, etc., which is not limited in this application.
If the shift information satisfies the preset range, selecting a corresponding volume adjustment mode based on the shift information, including: if the acceleration value meets the first preset range, selecting a volume adjustment mode as an acceleration adjustment mode based on the acceleration value; the volume adjustment value in the acceleration adjustment mode is inversely related to the acceleration value.
Optionally, the functional relation of the volume adjustment value in the acceleration adjustment mode with respect to the acceleration value is a quadratic function, and a quadratic term coefficient and a constant term coefficient in the quadratic function are determined according to the current volume value.
Specifically, when the driver controls the whole vehicle to accelerate, if the acceleration value is greater than a first preset value, for example, the first preset value is 0.35g, the acceleration value satisfies a first preset range, and the volume adjustment mode is selected as an acceleration adjustment mode based on the acceleration value, where the volume adjustment value in the acceleration adjustment mode is inversely related to the acceleration value.
The acceleration adjustment mode by which the volume reduction can be achieved is specifically described below. Specifically, assuming that the current volume value is M, the volume adjustment values y on the left and right sides of the head rest sound of the main driving position of the vehicle are changed along with the acceleration value x of the vehicle, and may follow the following expression "volume-acceleration curve formula i":
1.14M·(x/g) 2 +y-1.14M＝0x∈(0.35g,1g)；
in the above expression one, M represents the current volume value, x represents the acceleration value, and y represents the volume adjustment value. It can be derived from the expression one that when the acceleration value reaches 1.0g, the volume values on both sides of the headrest sound are all 0. Further, as can be seen from the above expression one, the functional relationship of the volume adjustment value y with respect to the acceleration value x in the acceleration adjustment mode is a quadratic function, in which the quadratic term coefficient and the constant term coefficient are both determined according to the current volume value M, and the volume adjustment value y is inversely related to the acceleration value x. The headrest sound adjusts the volume to a volume adjustment value y. The volume of the two sides of the headrest sound can be adjusted according to the formula.
Specifically, the vehicle control device that performs the method of the present embodiment may include an autopilot controller ADAS (Autonomous Driving Domain Controller), a vehicle CDC (Continuous Damping Control), a head restraint system HRS (Headrest Sound), a Gateway controller GW (Gateway), a whole vehicle controller VCU (Vehicle control unit), and a vehicle body stabilization system ESP (Electronic Stability Program) in the chassis.
As shown in fig. 2, the implementation logic of the acceleration adjustment mode is as follows:
the body stability system ESP acquires the acceleration value of the vehicle and transmits the acquired acceleration value to the vehicle control unit VCU. Specifically, the vehicle body stability system ESP transmits data to the vehicle control unit VCU once every 100ms (milliseconds).
The whole vehicle controller VCU continuously receives the acceleration value acquired by the vehicle body stabilizing system ESP, and starts to judge once every time the acceleration value of the whole vehicle is received, judges whether the acceleration value is larger than a first preset value of 0.35g, if yes, sends an acceleration mode triggering opening signal to the gateway controller GW, and sends the received acceleration value to the gateway controller GW. If not, returning to continue the judgment. It should be noted that, in the process of continuously initiating the determination, before the acceleration value is determined to be lower than 0.35g (i.e., in the process that the acceleration is always higher than 0.35 g), the whole vehicle controller VCU continuously transmits the acceleration value to the gateway controller GW.
The gateway controller GW receives the acceleration mode trigger opening signal and the acceleration value and directly forwards the acceleration value to the CDC of the vehicle.
After the CDC of the vehicle machine receives the acceleration mode triggering opening signal, the CDC of the vehicle machine immediately selects the application expression one in the subsequent logic processing process: and (3) a volume-acceleration curve formula I, immediately sending an acceleration mode adjustment opening signal to the headrest sound, obtaining a volume adjustment value according to the formula I, and sending the obtained volume adjustment value to the headrest sound.
The vehicle CDC continuously receives the acceleration value, receives the acceleration value once every 100ms, and periodically and continuously records the acceleration value after receiving the acceleration value, and is continuously applied to the process of processing the formula of the volume-acceleration curve formula I. After the vehicle CDC receives the acceleration value once, logic processing is performed once according to a volume-acceleration curve formula i to obtain a volume adjustment value after adjustment and change, and after the vehicle CDC receives the volume adjustment value through logic processing, the volume adjustment value is continuously sent to the headrest sound HRS, the acceleration value is a periodic signal, and the period is 100ms.
And after the head rest sound HRS receives the acceleration mode adjustment opening signal, opening an acceleration adjustment mode. The head rest sound HRS receives the volume adjustment value and performs logic processing to adjust the volume to the volume adjustment value to reduce the volume of the head rest sound and improve the experience of the driver.
In some embodiments, after adjusting the volume of the headrest speaker based on the volume adjustment value, comprising:
judging whether the speed change information exits from a preset range;
if yes, selecting a corresponding time adjustment mode based on the speed change information; the volume adjustment value in the time adjustment mode is positively correlated with time and correlated with the current volume value;
obtaining a corresponding volume adjustment value based on the time adjustment mode;
based on the volume adjustment value, the volume of the headrest sound is adjusted.
Specifically, the speed change information includes an acceleration value, and after adjusting the volume of the headrest speaker based on a volume adjustment value, the speed change information includes: judging whether the acceleration value is smaller than a first preset value, if so, selecting a first time adjustment mode based on the acceleration value, wherein the volume adjustment value in the first time adjustment mode is positively correlated with time and is correlated with the current volume value; and obtaining a corresponding volume adjustment value based on the first time adjustment mode, and adjusting the volume of the headrest sound according to the volume adjustment value.
The first time adjustment mode is specifically described below, through which a volume callback may be implemented. In particular, when driving When the acceleration of the vehicle controlled by the driver is reduced to the first preset value of 0.35g, the volume of the headrest sound is controlled according to the speed of 30 g/s, and the current volume value M 0 And (3) returning to the original volume value M, and conforming to the following expression two 'volume-time curve formula I':
30t-y+M 0 ＝0；
in the above expression II, M 0 For the moment when the acceleration of the vehicle decreases to a first preset value of 0.35g, t represents time and y represents a volume adjustment value. As can be seen from expression two, the volume adjustment value y is linearly and positively correlated with time t. Further, as can be seen from expression two, the volume adjustment value y in the time adjustment mode is linearly and positively correlated with the time t. The volume of the two sides of the headrest sound can be adjusted according to the formula.
Continuing the above application scenario, as shown in fig. 3, the logic for implementing the first time adjustment mode is performed after entering the acceleration adjustment mode, and specifically is as follows:
the body stability system ESP acquires the acceleration value of the vehicle and transmits the acquired acceleration value to the vehicle control unit VCU.
The whole vehicle controller VCU continuously receives the acceleration value, judges whether the acceleration value is not more than 0.35g of a first preset value, if yes, sends an acceleration mode triggering closing signal to the gateway controller GW, if not, returns to continue judging.
The gateway controller GW receives the acceleration mode trigger off signal and forwards it directly to the vehicle CDC.
The vehicle CDC receives the acceleration mode trigger off signal and immediately selects to apply expression two in the subsequent logic processing process: and (3) a volume-time curve formula I, immediately sending an acceleration mode adjustment closing signal to the headrest sound, obtaining a new volume adjustment value according to the formula II, and sending the obtained volume adjustment value to the headrest sound.
And after the headrest sound HRS receives the acceleration mode adjustment closing signal, the headrest sound HRS exits from the acceleration adjustment mode, receives the volume adjustment value, carries out logic processing, adjusts the volume to the volume adjustment value, and improves the experience of a driver.
Optionally, before determining whether the shift information meets the preset range, the method includes: acquiring map information and image pickup information of a vehicle; judging whether the vehicle is to be decelerated or not according to the map information and the camera shooting information; if yes, generating a deceleration pre-judging signal;
and judging whether the speed change information meets a preset range, including: and judging whether the deceleration value is larger than a second preset value or not based on the deceleration pre-judging signal.
In another embodiment, the shift information includes a deceleration value and a speed value; judging whether the speed change information meets a preset range or not comprises the following steps: judging whether the deceleration value is larger than a second preset value; if yes, judging that the deceleration value meets a second preset range;
If the shift information satisfies the preset range, selecting a corresponding volume adjustment mode based on the shift information, including: if the deceleration value meets the second preset range, selecting a volume adjustment mode as a deceleration adjustment mode based on the deceleration value; the volume adjustment value in the deceleration adjustment mode is positively correlated with the velocity value.
Optionally, the functional relationship of the volume adjustment value with respect to the speed value in the deceleration adjustment mode is a quadratic function, and a quadratic term coefficient in the quadratic function is determined according to the preset volume value and the current speed value.
Alternatively, the second preset value may be 1m/s 2 Of course, other values may be set according to actual situations, which is not limited in this application.
The deceleration adjustment mode by which the volume reduction can be achieved is specifically described below.
In one application scenario, the driver is driving. The volume value of the music playing at the moment is set as M, and the speed of the whole car is easier to predict in advance during the speed reduction process of the driver, so that the speed reduction predicted signal sent by the automatic driving domain controller ADAS can be sent to the whole car controller VCU, and then the corresponding volume adjustment mode is selected and the preset volume value N is called M The volume adjustment value can be obtained, and the volume of the headrest sound is adjusted to the volume adjustment value according to the volume adjustment value.
In some embodiments, the volume of the headrest sound is set to vary with the vehicle speed during vehicle deceleration, as the deceleration value is more irregular than the acceleration value during acceleration. The method for adjusting the volume through the deceleration adjustment mode can be performed after the automatic driving domain controller ADAS judges that the vehicle is about to perform deceleration early warning and sends a deceleration pre-judging signal to the whole vehicle controller VCU. Of course, the method can also be realized under the condition that the main driver steps on the brake in the conventional driving, and the application is not limited.
The whole vehicle controller VCU continuously judges that the deceleration value of the whole vehicle is larger than the second preset value by 1m/s 2 In this case, the volume value of the headrest speaker will change with the change in the speed value of the vehicle. When the vehicle controller VCU judges that the deceleration value of the vehicle is larger than the second preset value 1m/s 2 At the moment of the vehicle speed value is set to V 0 . At this time, the volume adjustment value y of the headrest speaker follows the following expression three "volume-speed curve formula i":
(N M /V 2 0 )·x 2 -y＝0；
In the expression III above, N M Representing a preset volume value, V 0 Indicating that the deceleration value of the vehicle is greater than the second preset value of 1m/s 2 X represents the speed value of the vehicle and y represents the volume adjustment value. As can be seen from the above expression three, when the speed value x is reduced to 0, the volume adjustment value of the headrest sound is simultaneously reduced to 0. Further, as can be seen from the above expression three, the functional relationship of the volume adjustment value y with respect to the velocity value x in the deceleration adjustment mode is a quadratic function in which the quadratic term coefficient is based on the preset volume value N M And the current speed value V 0 It is determined that the volume adjustment value y is positively correlated with the velocity value x. The volume of the two sides of the headrest sound can be adjusted according to the formula.
Specifically, as shown in fig. 4, the implementation logic of the deceleration adjustment mode is as follows:
and the automatic driving domain controller ADAS judges whether the vehicle is decelerating according to the acquired map information and the image pickup information, if so, the automatic driving domain controller ADAS sends a deceleration pre-judging signal to the gateway controller GW, and if not, the automatic driving domain controller ADAS returns to continuous judgment.
The gateway controller GW receives the deceleration pre-judgment signal and directly forwards the deceleration pre-judgment signal to the whole vehicle controller VCU.
The body stability system ESP acquires the deceleration value and the speed value of the vehicle, and transmits the acquired deceleration value and speed value to the vehicle control unit VCU. Specifically, the vehicle body stability system ESP transmits data to the vehicle control unit VCU once every 100ms (milliseconds). The vehicle body stability system ESP transmits the deceleration value and the speed value of the vehicle, irrespective of the autonomous driving area controller ADAS, and continuously transmits the entire vehicle deceleration value and the speed value to the entire vehicle controller VCU as long as the vehicle is powered on.
The whole vehicle controller VCU continuously receives the deceleration value and the speed value acquired by the vehicle body stabilizing system ESP, receives the deceleration pre-judging signal and initiates judgment according to the deceleration pre-judging signal. Specifically, each time the deceleration value of the vehicle is received, a determination is made as to whether the deceleration value is greater than a second preset value of 1m/s 2 If yes, a deceleration mode trigger opening signal is sent to the gateway controller GW, and the received deceleration value and the received speed value are sent to the gateway controller GW. If not, returning to the continuous judgment. In the process of continuously initiating the judgment, the deceleration value is judged to be lower than 1m/s 2 Before (i.e. deceleration always higher than 1 m/s) 2 During the course of (a), the whole vehicle controller VCU continuously transmits the deceleration value and the velocity value to the gateway controller GW.
The gateway controller GW receives the deceleration mode trigger on signal, the deceleration value and the speed value and directly forwards the signals to the CDC of the vehicle.
After the CDC of the vehicle machine receives the deceleration mode triggering opening signal, the following vehicle machine is selected immediatelyExpression three is applied during the logic process: the volume-speed curve formula I is used for immediately sending a deceleration mode adjusting and opening signal to the headrest sound box, and the preset volume value N is obtained according to the formula III and the formula III M And obtaining the volume adjustment value, and sending the obtained volume adjustment value to the headrest sound.
The vehicle CDC continuously receives the deceleration value, receives the deceleration value once every 100ms, and periodically continuously records the deceleration value after receiving the deceleration value, and is continuously applied to the process of processing the formula of the volume-speed curve formula I. After the vehicle CDC receives the deceleration value once, logic processing is performed once according to a volume-speed curve formula I to obtain a volume adjustment value after adjustment and change, and the vehicle CDC obtains a volume adjustment value through logic processing every time and continuously sends the volume adjustment value to the headrest sound HRS, wherein the deceleration value is a periodic signal, and the period is 100ms.
The head restraint stereo HRS first receives the deceleration mode adjustment on signal and then turns on the deceleration mode. The head rest sound HRS receives the volume adjustment value and performs logic processing to adjust the volume to the volume adjustment value to reduce the volume of the head rest sound and improve the experience of the driver.
In some embodiments, after adjusting the volume of the headrest speaker based on the volume adjustment value, comprising:
judging whether the speed change information exits from a preset range;
if yes, selecting a response time adjustment mode based on the speed change information; the volume adjustment value in the time adjustment mode is positively correlated with time and correlated with the current volume value;
obtaining a corresponding volume adjustment value based on the time adjustment mode;
based on the volume adjustment value, the volume of the headrest sound is adjusted.
Specifically, the speed change information includes a speed value, and after adjusting the volume of the headrest speaker based on the volume adjustment value, the speed change information includes: judging whether the deceleration value is smaller than a second preset value, if so, selecting a second time adjustment mode based on the deceleration value, wherein the volume adjustment value in the second time adjustment mode is positively correlated with time and is correlated with the current volume value; and obtaining a corresponding volume adjustment value based on the second time adjustment mode, and adjusting the volume of the headrest sound according to the volume adjustment value.
The second time adjustment mode by which the volume callback can be implemented is specifically described below. Specifically, when the deceleration of the driver controlling the whole vehicle is reduced to a second preset value of 1m/s 2 The volume of the headrest speaker is changed from the current volume value M at a speed of 20 g/s 0 And (3) returning to the original volume value M, and conforming to the following expression four 'volume-time curve formula II':
20t-y+M 0 ＝0；
in the above expression IV, M 0 For decreasing the deceleration value of the vehicle to a second preset value of 1m/s 2 The instantaneous volume value, t, represents time and y represents the volume adjustment value. Further, as can be seen from expression four, the volume adjustment value y is linearly and positively correlated with the time t. The volume of the two sides of the headrest sound can be adjusted according to the formula.
Continuing with the above application scenario, as shown in fig. 5, the logic for implementing the second time adjustment mode is performed after entering the deceleration adjustment mode, specifically as follows:
the body stability system ESP acquires a deceleration value of the vehicle and transmits the acquired deceleration value to the vehicle control unit VCU.
The vehicle control unit VCU continuously receives the deceleration value and judges whether the deceleration value is not more than the second preset value 1m/s 2 If yes, sending a deceleration mode triggering closing signal to the gateway controller GW, and if not, returning to continue judgment.
The gateway controller GW receives the deceleration mode trigger off signal and forwards it directly to the vehicle CDC.
The vehicle CDC receives the deceleration mode trigger off signal and immediately selects application expression four in the subsequent logic processing process: and (3) a volume-time curve formula II, immediately sending a deceleration mode adjustment closing signal to the headrest sound, obtaining a new volume adjustment value according to the expression IV, and sending the obtained volume adjustment value to the headrest sound.
And after the headrest sound HRS receives the deceleration mode adjustment closing signal, the headrest sound HRS exits from the deceleration adjustment mode, receives the volume adjustment value, carries out logic processing, adjusts the volume to the volume adjustment value, and improves the experience of a driver.
In the acceleration adjustment mode and the deceleration adjustment mode, the volume adjustment value y changes in a curve so as to realize volume adjustment.
The following describes that the volume adjustment value y changes linearly to realize the adjustment of the volume, specifically, the adjustment of the volume can be realized through automatic setting, and the following steps are specifically:
when the automobile accelerates and decelerates under the pre-judgment of automatic driving, the change times and the change speeds of the volume values of the left side and the right side of the headrest sound can be automatically adjusted through setting. In the automatic setting mode, the volume of the two sides of the headrest sound can be independently adjusted, and also can be simultaneously adjusted.
In one embodiment, assume that the volume to the left of the headrest speaker is M L At present, the volume on the right side of the headrest sound is M R 。
When the vehicle accelerates, the volume of the automatic headrest speaker is automatically controlled to change as follows:
for example, when the vehicle control unit VCU determines that the acceleration value of the vehicle is greater than the first preset value of 0.35g, the adjustment of the volume reduction is performed. Specifically, the sound volume of the left headrest of the main driving position is changed to 0.5M at constant speed L The sound volume of the right headrest is changed to 0.6M at constant speed R The change speeds were each 60 lattice volume/second.
For example, when the vehicle control unit VCU determines that the acceleration value of the vehicle is greater than 0.35g, the volume callback is started at the moment that the acceleration value is lower than 0.35g, and the volume adjustment is performed. Specifically, the sound volume of the left headrest of the main driving position is changed to M at a constant speed L The sound volume of the right headrest is changed to 1.1M at constant speed R The change speeds were all 30 lattice volumes/second.
When the vehicle is decelerating under the automatic driving pre-judgment, the change condition of the volume of the automatic control headrest sound is as follows:
for example, after the automatic driving area controller ADAS judges that the vehicle is about to perform deceleration pre-warning, a deceleration pre-judging signal is sent to the whole vehicle controller VCU, and when the whole vehicle controller VCU judges that the deceleration value of the vehicle is greater than the second preset value by 1m/s 2 At this time, the volume reduction adjustment is performed. Specifically, the sound volume of the left headrest of the main driving position is changed to 0.2M at constant speed L The sound volume of the right headrest is changed to 0.15M at constant speed R The change speeds were 50 lattice volumes/second.
Exemplary, when the vehicle controller VCU determines that the deceleration value of the vehicle is greater than the second preset value 1m/s 2 Then, is lower than the second preset value by 1m/s again 2 Is provided for volume callback. Specifically, the sound volume of the left headrest of the main driving position is changed to 0.7M at constant speed L The sound volume of the right headrest is changed to 0.8M at constant speed R The change speeds were 15 g/s.
It should be noted that the above values are merely examples, and other values may be adjusted according to actual situations, which is not limited in this application.
The volume reduction process in the acceleration process, the volume callback process after the acceleration process, the volume reduction process in the deceleration process under the automatic driving pre-judgment and the volume callback process after the deceleration process under the automatic driving pre-judgment can be automatically set according to actual conditions under four conditions, wherein the final target value of the volume change or the increase and decrease multiple of the current volume at the left side and the right side of the headrest sound and the speed of the volume change can be automatically set.
In addition, it may be manually set. For example, an automatic adjustment option can be set in the CDC of the vehicle, and the driver can individually adjust specific values of the left and right sound volume change multiples in the above four cases through a large screen. If the driver is more familiar with increasing the volume in the process of decelerating the vehicle, the volume value of the left headrest sound and the right headrest sound can be adjusted to be 1.2 times when the vehicle turns left. The driver's customized volume value change multiple can be newly added into a ' customized mode 1 ', and the driver can rename the mode and take the mode as a common setting mode. For example, the number of custom modes autonomously set by the driver is set to 5.
Any combination of the above optional solutions may be adopted to form an optional embodiment of the present application, which is not described herein in detail.
It should be understood that the sequence number of each step in the foregoing embodiment does not mean that the execution sequence of each process should be determined by the function and the internal logic of each process, and should not limit the implementation process of the embodiment of the present application in any way.
The following are device embodiments of the present application, which may be used to perform method embodiments of the present application. For details not disclosed in the device embodiments of the present application, please refer to the method embodiments of the present application.
Fig. 6 is a schematic diagram of an adjusting device for a headrest speaker according to an embodiment of the present application. As shown in fig. 6, the headrest sound adjusting device includes:
a first acquisition module 601 configured to acquire shift information of a vehicle;
a first judging module 602 configured to judge whether the shift information satisfies a preset range;
a first selecting module 603 configured to select a corresponding volume adjustment mode based on the shift information if the shift information satisfies a preset range; the functional relationship of the volume adjustment value in the volume adjustment mode with respect to the shift information is a quadratic function;
A first obtaining module 604 configured to obtain a corresponding volume adjustment value based on the volume adjustment mode;
the first adjustment module 605 is configured to adjust the volume of the headrest audio based on the volume adjustment value.
According to the technical scheme provided by the embodiment of the application, through selecting corresponding volume adjustment mode according to speed change information, and then adjust the volume of headrest stereo, improve the problem that the volume perceived by the driver can be suddenly increased because the relative position of driver and headrest stereo changes, cause the injury to the single ear of driver, promote the experience of driving.
In some embodiments, the shift information includes an acceleration value;
the first determination module 602 is specifically configured to: judging whether the acceleration value is larger than a first preset value or not; if yes, judging that the acceleration value meets a first preset range;
the first selection module 603 is specifically configured to: if the acceleration value meets the first preset range, selecting a volume adjustment mode as an acceleration adjustment mode based on the acceleration value; the volume adjustment value in the acceleration adjustment mode is inversely related to the acceleration value.
In some embodiments, the functional relationship of the volume adjustment value in the acceleration adjustment mode with respect to the acceleration value is a quadratic function, where the quadratic term coefficient and the constant term coefficient are both determined according to the current volume value.
In some embodiments, the shift information includes a deceleration value and a speed value;
the first determination module 602 is specifically configured to: judging whether the deceleration value is larger than a second preset value; if yes, judging that the deceleration value meets a second preset range;
the first selection module 603 is specifically configured to: if the deceleration value meets the second preset range, selecting a volume adjustment mode as a deceleration adjustment mode based on the deceleration value; the volume adjustment value in the deceleration adjustment mode is positively correlated with the velocity value.
In some embodiments, the functional relationship of the volume adjustment value with respect to the velocity value in the deceleration adjustment mode is a quadratic function, and a quadratic term coefficient in the quadratic function is determined according to the preset volume value and the current velocity value.
In some embodiments, the headrest sound adjusting device further includes:
a second acquisition module configured to acquire map information and image pickup information of the vehicle;
a third judging module configured to judge whether the vehicle is to be decelerated or not based on the map information and the image capturing information;
a generation module configured to generate a deceleration pre-determination signal if it is determined that the vehicle is to be decelerated;
the first determination module 602 is specifically configured to determine, based on the deceleration pre-determination signal, whether the deceleration value is greater than a second preset value.
In some embodiments, the headrest sound adjusting device further includes:
a second judging module 606 configured to judge whether the shift information exits the preset range;
a second selection module 607 configured to select a corresponding time adjustment mode based on the shift information if the shift information exits the preset range; the volume adjustment value in the time adjustment mode is positively correlated with time and correlated with the current volume value;
a second obtaining module 608 configured to obtain a corresponding volume adjustment value based on the time adjustment mode;
a second adjustment module 609 is configured to adjust the volume of the headrest sound based on the volume adjustment value.
Fig. 7 is a schematic diagram of an electronic device 7 provided in an embodiment of the present application. As shown in fig. 7, the electronic device 7 of this embodiment includes: a processor 701, a memory 702 and a computer program 703 stored in the memory 702 and executable on the processor 701. The steps of the various method embodiments described above are implemented by the processor 701 when executing the computer program 703. Alternatively, the processor 701, when executing the computer program 703, performs the functions of the modules/units of the apparatus embodiments described above.
The electronic device 7 may be a desktop computer, a notebook computer, a palm computer, a cloud server, or the like. The electronic device 7 may include, but is not limited to, a processor 701 and a memory 702. It will be appreciated by those skilled in the art that fig. 7 is merely an example of the electronic device 7 and is not limiting of the electronic device 7 and may include more or fewer components than shown, or different components.
The processor 701 may be a central processing unit (Central Processing Unit, CPU) or other general purpose processor, digital signal processor (Digital Signal Processor, DSP), application specific integrated circuit (Application Specific Integrated Circuit, ASIC), field programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like.
The memory 702 may be an internal storage unit of the electronic device 7, for example, a hard disk or a memory of the electronic device 7. The memory 702 may also be an external storage device of the electronic device 7, for example, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash Card (Flash Card) or the like provided on the electronic device 7. The memory 702 may also include both internal storage units and external storage devices of the electronic device 7. The memory 702 is used to store computer programs and other programs and data required by the electronic device.
Based on the same inventive concept, embodiments of the present application provide a computer-readable storage medium storing a computer program which, when executed by a processor, implements the steps of the method as described above.
The computer readable storage medium provided in the embodiments of the present application has the same inventive concept and the same advantages as those of the previous embodiments, and the content not shown in detail in the computer readable storage medium may refer to the previous embodiments, and will not be described herein.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions. The functional units and modules in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit, where the integrated units may be implemented in a form of hardware or a form of a software functional unit.
The integrated modules/units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a readable storage medium (e.g., a computer readable storage medium). Based on such understanding, the present application implements all or part of the flow in the methods of the above embodiments, or may be implemented by a computer program to instruct related hardware, and the computer program may be stored in a computer readable storage medium, where the computer program may implement the steps of the respective method embodiments described above when executed by a processor. The computer program may comprise computer program code, which may be in source code form, object code form, executable file or in some intermediate form, etc. The computer readable storage medium may include: any entity or device capable of carrying computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth.
The above embodiments are only for illustrating the technical solution of the present application, and are not limiting thereof; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.
Claims (10)
1. A method of adjusting a headrest speaker, comprising:
acquiring speed change information of a vehicle;
judging whether the speed change information meets a preset range or not;
if the speed change information meets the preset range, selecting a corresponding volume adjustment mode based on the speed change information; the functional relationship of the volume adjustment value in the volume adjustment mode with respect to the shift information is a quadratic function;
obtaining a corresponding volume adjustment value based on the volume adjustment mode;
and adjusting the volume of the headrest sound based on the volume adjustment value.
2. The method of claim 1, wherein the step of determining the position of the substrate comprises,
The speed change information comprises an acceleration value;
judging whether the speed change information meets a preset range or not comprises the following steps:
judging whether the acceleration value is larger than a first preset value or not;
if yes, judging that the acceleration value meets a first preset range;
if the speed change information meets the preset range, selecting a corresponding volume adjustment mode based on the speed change information, wherein the method comprises the following steps:
if the acceleration value meets the first preset range, selecting a volume adjustment mode as an acceleration adjustment mode based on the acceleration value; the volume adjustment value in the acceleration adjustment mode is inversely related to the acceleration value.
3. The method of claim 2, wherein the step of determining the position of the substrate comprises,
the functional relation of the volume adjustment value in the acceleration adjustment mode with respect to the acceleration value is a quadratic function, and a quadratic term coefficient and a constant term coefficient in the quadratic function are determined according to the current volume value.
4. The method of claim 1, wherein the shift information includes a deceleration value and a speed value;
judging whether the speed change information meets a preset range or not comprises the following steps:
judging whether the deceleration value is larger than a second preset value or not;
If yes, judging that the deceleration value meets a second preset range;
if the speed change information meets the preset range, selecting a corresponding volume adjustment mode based on the speed change information, wherein the method comprises the following steps:
if the deceleration value meets a second preset range, selecting a volume adjustment mode as a deceleration adjustment mode based on the deceleration value; the volume adjustment value in the deceleration adjustment mode is positively correlated with the speed value.
5. The method of claim 4, wherein the step of determining the position of the first electrode is performed,
the functional relation of the volume adjustment value in the deceleration adjustment mode with respect to the speed value is a quadratic function, and a quadratic term coefficient in the quadratic function is determined according to a preset volume value and a current speed value.
6. The method according to claim 4, wherein before determining whether the shift information satisfies a preset range, comprising:
acquiring map information and image pickup information of the vehicle;
judging whether the vehicle is to be decelerated or not according to the map information and the image pickup information;
if yes, generating a deceleration pre-judging signal;
and judging whether the speed change information meets a preset range, including:
And judging whether the deceleration value is larger than a second preset value or not based on the deceleration pre-judging signal.
7. The method according to any one of claims 1 to 6, wherein after adjusting the volume of the headrest speaker based on the volume adjustment value, comprising:
judging whether the speed change information exits the preset range or not;
if yes, selecting a corresponding time adjustment mode based on the speed change information; the volume adjustment value in the time adjustment mode is positively correlated with time and correlated with the current volume value;
obtaining a corresponding volume adjustment value based on the time adjustment mode;
and adjusting the volume of the headrest sound based on the volume adjustment value.
8. An adjusting device of a headrest sound, characterized by comprising:
a first acquisition module configured to acquire shift information of a vehicle;
a first judging module configured to judge whether the shift information satisfies a preset range;
the first selection module is configured to select a corresponding volume adjustment mode based on the speed change information if the speed change information meets the preset range; the functional relationship of the volume adjustment value in the volume adjustment mode with respect to the shift information is a quadratic function;
The first obtaining module is configured to obtain corresponding volume adjustment values based on the volume adjustment mode;
and the first adjusting module is configured to adjust the volume of the headrest sound based on the volume adjusting value.
9. An electronic device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the steps of the method according to any of claims 1 to 7 when the computer program is executed.
10. A storage medium storing a computer program, which when executed by a processor performs the steps of the method according to any one of claims 1 to 7.
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