CN107097717B - Horn device, control method thereof and automobile applying horn device - Google Patents
Horn device, control method thereof and automobile applying horn device Download PDFInfo
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- CN107097717B CN107097717B CN201710166791.9A CN201710166791A CN107097717B CN 107097717 B CN107097717 B CN 107097717B CN 201710166791 A CN201710166791 A CN 201710166791A CN 107097717 B CN107097717 B CN 107097717B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q5/00—Arrangement or adaptation of acoustic signal devices
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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
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
- H04R1/028—Casings; Cabinets ; Supports therefor; Mountings therein associated with devices performing functions other than acoustics, e.g. electric candles
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Abstract
The invention provides a horn device, a control method thereof and an automobile using the horn device, and relates to the technical field of automobile parts. The problem that the environmental pollution caused by the noise of the automobile horn cannot be effectively reduced by the conventional method for setting the reminding mark on the road is solved. The horn device comprises a sensor unit, a control unit, a high pitch horn and a low pitch horn; the sensor unit is electrically connected with the control unit and used for acquiring sensing information and generating a sensing signal, the sensor unit comprises a pressure sensor, the sensing information comprises pressure information generated when a driver presses the horn switch body, the sensing signal comprises a pressure signal, and the pressure sensor is used for acquiring the pressure information and generating the pressure signal; the control unit is used for generating a first control signal or a second control signal according to the sensing signal; the high pitch horn is used for producing a sound according to the first control signal; the woofer is used for producing the ring according to the second control signal. The control method is used for controlling the horn device, and the automobile comprises the horn device.
Description
Technical Field
The invention relates to the technology of automobile parts, in particular to a horn device, a control method thereof and an automobile using the horn device.
Background
The automobile is one of the important transportation means of human beings, and with the progress of the times, the quantity of the automobile kept in China is continuously increased, and the automobile has gone into thousands of households. With the rapid increase of the number of automobiles, the noise emitted by the automobile horn becomes a main noise pollution source in cities, which not only influences the normal life, study and work of people, but also brings great harm to the health of human bodies.
In the known technology, a horn of an automobile makes a sound by a driver manually pressing a horn switch body on a steering wheel, so as to improve the driving safety of the automobile. However, the sound emitted from the horn of the vehicle is sharp, which is likely to cause annoyance, and when the driver reminds pedestrians to avoid the horn, the driver may be confused or frightened about pedestrians or people riding bicycles, which may cause traffic accidents or disputes.
At present, the method for setting the noise decibel automatic test display board and the 'no-sounding' signboard on the noise sensitive road section is adopted to remind a driver of selectively sounding a horn according to a prompt, but the driver is still required to remind pedestrians in a horn sounding mode in an emergency situation, so the method for setting the reminding mark cannot effectively reduce the pollution of the noise of the automobile horn to the environment.
Disclosure of Invention
The invention provides a horn device, a control method thereof and an automobile using the same, and solves the problem that the existing method for setting a reminding mark on a road cannot effectively reduce the environmental pollution caused by the noise of an automobile horn.
An embodiment of the present invention provides a horn device mounted on an automobile, including: the device comprises a sensor unit, a control unit, a tweeter and a woofer;
the sensor unit is electrically connected with the control unit and used for acquiring sensing information and generating a sensing signal; the sensor unit comprises a pressure sensor and is arranged on a horn switch body of the automobile; the sensing information comprises pressure information generated when a driver of the automobile presses the horn switch body, the sensing signal comprises a pressure signal, and the pressure sensor is used for acquiring the pressure information and generating the pressure signal;
the control unit is used for generating a first control signal or a second control signal according to the sensing signal;
the high pitch horn is used for generating a sound according to the first control signal;
the woofer is used for producing the ring according to the second control signal.
Another aspect of the embodiments of the present invention provides a method for controlling a speaker apparatus, for controlling the speaker apparatus, including:
the control unit acquires the sensing signal, the sensing signal is generated by the sensing unit according to the acquired sensing information, and the method specifically comprises the following steps: the control unit acquires a pressure signal, and the pressure signal is generated by acquiring pressure information generated when a driver of the automobile presses a horn switch body by a pressure sensor in the sensor unit;
the control unit generates a first control signal or a second control signal according to the sensing signal, and specifically includes: the control unit generates a first control signal when judging that the pressure signal is greater than a pressure threshold value;
when the control unit generates a first control signal, the high pitch horn generates a sound; when the control unit generates a second control signal, the woofer generates a sound.
In another aspect, the present invention provides an automobile equipped with the horn device.
In the horn device, the control method thereof and the automobile using the same provided by the invention, because the sensing unit can acquire the sensing information containing the pressure information generated by pressing the horn switch body and generate the sensing signal containing the pressure signal, the sensing signal and the calculation and judgment rule built in the control unit can be used for judging according to the magnitude of the pressure signal, or the sensing signal is acquired and then is combined with the magnitude of other sensing signals to generate two different control signals, namely a first control signal or a second control signal, the high-pitch horn can generate a sound according to the first control signal, the low-pitch horn can generate a sound according to the second control signal, so that when a pedestrian is reminded in a way of sounding the horn, the high-pitch horn and the low-pitch horn can automatically distinguish different situations to sound, and when the pedestrian is reminded in need of larger sound, the high pitch horn sounds automatically, when a person needs to be reminded by small sound, the low pitch horn sounds automatically, and therefore the environmental pollution caused by the noise of the automobile horn is effectively reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of a horn device provided in embodiment 1;
fig. 2 is a schematic view of a horn device provided in embodiment 2;
fig. 3 is a flowchart of a control method of a speaker device according to embodiment 3;
fig. 4 is a flowchart of a control method of the horn device according to embodiment 4.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Fig. 1 is a schematic view of a horn device according to embodiment 1, and as shown in fig. 1, the horn device is mounted on a vehicle (not shown), and includes: a sensor unit 11, a control unit 12, a tweeter 13 and a woofer 14. The sensor unit 11 is electrically connected with the control unit 12 and is used for acquiring sensing information and generating a sensing signal; the sensor unit 11 includes a pressure sensor 111 mounted on a horn switch body (not shown in the drawings) of the automobile; the sensing information comprises pressure information generated when a driver of the automobile presses the horn switch body, the sensing signal comprises a pressure signal, and the pressure sensor 111 is used for acquiring the pressure information and generating the pressure signal; the control unit 12 is used for generating a first control signal or a second control signal according to the sensing signal; the tweeter 13 is used for generating a sound according to the first control signal; the woofer 14 is for producing a ringing in response to the second control signal.
Specifically, the sensor unit 11 may obtain sensing information including pressure information generated when a driver presses a horn switch body (not shown in the figure) on the automobile, the horn switch body is located on the surface of the automobile steering wheel so that the driver can press the horn switch body, and the sensor unit is triggered by pressing the horn switch body; the sensor unit 11 then generates a sensing signal related to the pressure, the control unit 12 performs corresponding calculation and determination according to the sensing signal, as described in the following embodiments, specific determination and calculation rules may be set, for example, the sensing signal related to the pressure is a voltage signal, the pressure corresponding to the voltage signal can be obtained by setting the calculation rules, the determination rules may be set to generate a determination result when the pressure reaches a certain value, the control unit 12 generates two control signals according to the result of the calculation and determination, wherein the first control signal is used for sounding the tweeter 13, the second control signal is used for sounding the woofer 14, so that the speaker device can generate two different control signals by using the sensing information including the pressure information acquired by the sensing unit 11 and the calculation and determination rules built in the control unit 12, so that the tweeter 13 and the woofer 14 can automatically distinguish different situations for sounding.
In the speaker device provided by this embodiment, since the sensing unit can acquire the sensing information containing the pressure information generated by pressing the speaker switch body and generate the sensing signal containing the pressure signal, the sensing signal and the calculation and judgment rules built in the control unit can be used for judging according to the magnitude of the pressure signal, or the sensing signal can be combined with the magnitude of other sensing signals after acquiring the pressure signal to generate two different control signals, namely, the first control signal or the second control signal, and the tweeter can generate a sound according to the first control signal, and the woofer can generate a sound according to the second control signal, when a person needs to be reminded by means of the tweeter, the tweeter and the woofer can automatically distinguish different situations to perform sound, when a person needs to be reminded by a loud sound, the tweeter automatically sounds, when a person needs to be reminded by small sound, the woofer automatically rings, and then the environmental pollution caused by the noise of the automobile horn is effectively reduced.
Example 2
Fig. 2 is a schematic view of a horn device according to embodiment 2, and as shown in fig. 2, the horn device is mounted on a vehicle (not shown), and includes: a sensor unit 21, a control unit 22, a tweeter 23 and a woofer 24. The sensor unit 21 is electrically connected with the control unit 22 and is used for acquiring sensing information and generating a sensing signal; the control unit 22 is used for generating a first control signal or a second control signal according to the sensing signal; the tweeter 23 is used for generating a sound according to the first control signal; the woofer 24 is for producing a ringing in response to the second control signal.
Wherein, the sensor unit 21 includes a pressure sensor 211, as described in embodiment 1, the pressure sensor 211 is mounted on a horn switch body (not shown in the figure) of the automobile, the horn switch body is located on the surface of the steering wheel of the automobile at a position convenient for the driver to press, and the pressure sensor 211 is triggered by pressing the horn switch body; the sensing information includes pressure information generated when a driver of the automobile presses the horn switch body, and the sensing signal may include a pressure signal. Therefore, the pressure sensor is used for acquiring the pressure information and generating the pressure signal, so that the control unit 22 can start to calculate and judge by being triggered by the pressure signal, and the ringing of different horns can be controlled by judging the strength of the driver pressing the horn switch body.
In addition, the control unit 22 may also perform determination in combination with other sensing signals after determining the pressure signal, thereby generating different control signals. The other sensing signals are generated by several sensors respectively as follows.
The sensor unit 21 may further include a volume sensor 212, the sensing information may further include volume information generated in an environment outside the vehicle, and the sensing signal may further include a volume signal. Therefore, the volume sensor 212 can be used to acquire the volume information and generate the volume signal, so that the control unit 22 can also perform calculation and judgment according to the volume signal, thereby controlling the sounding of different horns by judging the magnitude of the external environment noise of the automobile.
Also, the sensor unit 21 further includes a vehicle speed sensor 213; the sensing information may further include speed information generated when the vehicle is running, and the sensing signal may further include a speed signal, so that the vehicle speed sensor 213 may be configured to acquire the speed information and generate the speed signal, so that the control unit 22 can perform calculation and judgment according to the speed signal, thereby controlling the ringing of different horns by judging the running speed of the vehicle.
Besides, the sensor unit may further include a panoramic camera 214, where the panoramic camera 214 is a camera system composed of a plurality of cameras, and the cameras are respectively installed at the head and the side of the automobile, so as to obtain a real-time image of the periphery of the automobile. The sensing information may further include image information of the surroundings of the automobile, and the sensing signal may further include an image signal, so that the panoramic camera 214 may be used to acquire the image information and generate the image signal, so that the control unit 22 can perform calculation and judgment according to the image signal, for example, the number of pedestrians in front of the automobile is obtained according to the calculation of the image signal as described in the following embodiments, so as to control the ringing of different horns by judging the number of pedestrians.
The horn device may further include a power source 25, a first electrically controlled switch 26, and a second electrically controlled switch 27. The tweeter 23 may be electrically connected to the power source 25 via a first electrically controlled switch 26, and the woofer 24 may be electrically connected to the power source 25 via a second electrically controlled switch 27; the first electronically controlled switch 26 is adapted to be closed when the control unit 22 generates a first control signal and the second electronically controlled switch 27 is adapted to be closed when the control unit 22 generates a second control signal. That is, the control signal generated by the control unit 22 may cause the first electrically controlled switch 26 or the second electrically controlled switch 27 to close, thereby causing the tweeter 23 or the woofer 24 to turn on the power supply 25 to produce a ringing sound.
As known to those skilled in the art, the control of the tweeter 23 and the woofer 24 by the first control signal and the second control signal may not be limited to the electrically controlled switch control shown in fig. 2, and the tweeter 23 and the woofer 24 may be directly connected to the control unit 22, so that the first control signal generated by the control unit 22 is output to the tweeter 23 to sound the tweeter 23, and the second control signal generated by the control unit 22 is output to the woofer 24 to sound the woofer 24.
The horn device may further include a first indicator light 28 and a second indicator light 29. Wherein a first indicator light 28 may be electrically connected between the tweeter 23 and the first electrically controlled switch 26 for illuminating when the tweeter 23 is ringing and a second indicator light 29 may be electrically connected between the woofer 24 and the second electrically controlled switch 27 for illuminating when the woofer 24 is ringing. The indicator light enables the driver to visually see whether the tweeter is sounding or the woofer is sounding.
The control unit 22 in the horn device may be a micro-singlechip, or may be other devices having calculation and judgment functions on electrical signals, such as a microcontroller.
In the speaker device provided by this embodiment, since the sensing unit can obtain the sensing information such as pressure information, volume information, vehicle speed information, image information, etc. and generate the sensing signals such as pressure signal, volume signal, vehicle speed signal, image signal, etc. accordingly, two different control signals, i.e. the first control signal or the second control signal, can be generated by using these sensing signals and the calculation and judgment rules built in the control unit, and the tweeter can generate a sound according to the first control signal, and the woofer can generate a sound according to the second control signal, so that when a person needs to be reminded by the way of the tweeter, the tweeter and the woofer can automatically distinguish different situations to sound, when a person needs to be reminded by a large sound, the tweeter automatically sounds, when a person needs to be reminded by a small sound, the woofer automatically sounds, thereby effectively reducing the environmental pollution caused by the noise of the automobile horn.
Example 3
Fig. 3 is a flowchart of a method for controlling a horn device according to embodiment 3, and as shown in fig. 3, the method for controlling a horn device is used to control the horn device described in embodiment 1 or embodiment 2, and specifically includes the following steps.
In step 301, the control unit acquires a sensing signal, and the sensing signal is generated by the sensing unit according to the acquired sensing information.
Specifically, the step includes the control unit acquiring a pressure signal generated by a pressure sensor in the sensor unit acquiring pressure information generated when a driver of the automobile presses a horn switch body.
The sensor unit comprises a pressure sensor, the sensing information acquired by the sensor unit comprises pressure information generated when a driver presses a horn switch body on the automobile, and as described in embodiment 1, the horn switch body is positioned on the surface of the automobile steering wheel so as to be conveniently pressed by the driver, and the sensor unit is triggered by pressing the horn switch body; the sensor unit then acquires pressure information and generates a pressure signal related to the pressure. The control unit acquires the pressure signal through the electric connection with the sensor unit.
Specifically, the step includes generating a first control signal when the control unit determines that the pressure signal is greater than the pressure threshold, so that the tweeter sounds.
The pressure threshold value is a fixed value preset in the control unit and used for defining the size of a pressure signal, when the pressure signal is larger than the pressure threshold value, the force is large when a driver presses the horn switch body, generally, in an emergency, if a pedestrian appears in the front of a vehicle in a short distance, the driver can press the horn switch body with force, therefore, the control unit can judge whether an emergency situation occurs or not by setting a proper pressure threshold value, and if the pressure signal is larger than the pressure threshold value, the horn switch body judges that the emergency situation occurs, and the horn switch body needs to sound with large sound.
In addition, the control unit can also perform corresponding calculation and judgment according to other sensing signals and the pressure signal, so that the loudspeaker device can generate two different control signals by using the sensing information containing the pressure information acquired by the sensing unit 11 and the calculation and judgment rules built in the control unit 12, and the high-pitched loudspeaker 13 and the low-pitched loudspeaker 14 can automatically distinguish different situations for sounding.
In the control method of the speaker device provided by this embodiment, since the sensing unit can acquire the sensing information containing the pressure information generated by pressing the speaker switch body and generate the sensing signal containing the pressure signal, the control unit can judge according to the magnitude of the pressure signal after acquiring the sensing signal, or judge in combination with the magnitude of other sensing signals after acquiring the pressure signal, so as to generate two different control signals, i.e. the first control signal or the second control signal, and when the first control signal is generated, the tweeter sounds, and when the second control signal is generated, the woofer sounds, so that when a speaker needs to be alerted by means of the tweeter, the tweeter and the woofer can automatically distinguish different situations to sound, and when a person needs to be alerted by a loud sound, the speaker automatically sounds, when a person needs to be reminded by small sound, the woofer automatically rings, and then the environmental pollution caused by the noise of the automobile horn is effectively reduced.
Example 4
Fig. 4 is a flowchart of a method for controlling a horn device according to embodiment 4, and as shown in fig. 4, the method for controlling a horn device is used for controlling the horn device described in embodiment 2, and specifically includes the following steps.
The pressure signal is generated by acquiring pressure information generated when a driver of the automobile presses the horn switch body by a pressure sensor in the sensor unit; the volume signal is generated by a volume sensor in the sensor unit acquiring volume information generated by the external environment of the automobile; the speed signal is generated by a speed sensor in the sensor unit acquiring speed information when the automobile runs; the image signal is generated by a panoramic camera in the sensor unit acquiring image information of the surroundings of the car.
As described in the above embodiments, the sensor units are electrically connected to the control unit, and thus each sensor in the sensor units is electrically connected to the control unit, so that the pressure sensor, the volume sensor, the vehicle speed sensor, and the panoramic camera can generate sensing signals that can be acquired by the control unit. It should be noted that the pressure signal, the volume signal, the speed signal and the image signal are not limited to be acquired sequentially, and may be acquired simultaneously, may be acquired sequentially within a time period, or may be acquired in other manners known to those skilled in the art.
In step 402, the control unit determines whether the pressure signal is greater than a pressure threshold, and executes step 406 if the determination result is yes, and executes step 403 if the determination result is no.
Specifically, as described in embodiment 3, the pressure threshold is a fixed value preset in the control unit, and is used to define the magnitude of the pressure signal, when the pressure signal is greater than the pressure threshold, it indicates that the driver has a large force when pressing the horn switch body, usually in an emergency, if a pedestrian appears in the front of the vehicle shortly, the driver will press the pressure signal with a force, therefore, by setting a suitable pressure threshold, the control unit can determine whether an emergency occurs, if the pressure signal is greater than the pressure threshold, it is determined that an emergency occurs, a loud horn is required to sound, and step 406 can be executed to sound the loud horn to remind the pedestrian of avoiding.
When the pressure signal is less than or equal to the pressure threshold, step 403 is performed.
In step 403, the control unit determines whether the volume signal is greater than the volume threshold, and if yes, executes step 406, and if no, executes step 404.
Specifically, when the pressure signal is less than or equal to the pressure threshold, it indicates that the driver has a small force when pressing the horn switch body, and usually does not encounter an emergency, and the emotion of the driver is relatively smooth, for example, the distance between a pedestrian and a vehicle is relatively long, in which case, the judgment of the volume of the external environment of the automobile can also be introduced. The volume threshold is a fixed value preset in the control unit, and the volume signal can be defined by setting the volume threshold. The volume signal is greater than the volume threshold, which indicates that the external environment of the vehicle is noisy, and a relatively large horn sound is required to be heard by a pedestrian at a relatively long distance. Therefore, when the control unit determines that the external environment of the vehicle is noisy when the pressure signal is less than or equal to the pressure threshold and the volume signal is greater than the volume threshold, a horn with a higher volume is required to sound, and step 406 may be executed to sound the tweeter to remind the pedestrian of avoiding.
When the pressure signal is less than or equal to the pressure threshold and the volume signal is less than the volume threshold, step 404 is performed.
In step 404, the control unit determines whether the speed signal is less than the speed threshold, and if yes, executes step 407, and if no, executes step 405.
When the pressure signal is less than or equal to the pressure threshold value, the driver presses the horn switch body with less force, and usually no emergency is met. When the volume signal is smaller than or equal to the volume threshold value, the automobile external environment is quieter. In this case, the determination of the running speed of the vehicle may be further introduced, the speed threshold is a fixed value preset in the control unit, the speed of the vehicle running may be defined by setting the speed threshold in the control unit, and when the speed signal is greater than or equal to the speed threshold, the vehicle speed is indicated to be faster. When the speed signal is less than the speed threshold, it indicates that the vehicle speed is slow, in this case, because the vehicle speed is slow, no matter the number of people around the vehicle is large or small, the possibility of colliding with pedestrians is low, and the effect of reminding pedestrians to avoid can be achieved by using a small horn sound, so that the bass horn can be sounded by executing step 407.
When the pressure signal is less than or equal to the pressure threshold, the volume signal is less than the volume threshold, and the speed signal is greater than or equal to the speed threshold, step 405 is performed.
In step 405, the control unit judges whether the number of pedestrians in the image signal is greater than or equal to a threshold number of pedestrians, and executes step 406 when the judgment result is yes and executes step 407 when the judgment result is no.
As described above, when the pressure signal is less than or equal to the pressure threshold, it indicates that the driver has a small force to press the horn switch body, and usually no emergency is encountered. When the volume signal is smaller than or equal to the volume threshold value, the automobile external environment is quieter. When the speed signal is greater than or equal to the speed threshold value, the vehicle speed is relatively high. In this case, a judgment of the number of pedestrians around the automobile may also be introduced. The number of people threshold is also a fixed value preset in the control unit, the number of pedestrians around the automobile can be defined by setting the number of people threshold in the control unit, and when the number of pedestrians in the image signal is larger than or equal to the number of people threshold, the number of people around the automobile is large. Even under the condition that an emergency situation is not met and the external environment of the automobile is quite, when the automobile speed is high and the number of pedestrians is large, the time for the automobile to reach the position of the pedestrian is short, the probability of colliding with the pedestrian is high, and therefore all the pedestrians can be reminded as soon as possible by the aid of the large horn sound, and the pedestrians can avoid the automobile in the shortest time. Thus, in such a case, execution of step 406 may sound a tweeter to alert the pedestrian to avoid.
When the pressure signal is less than or equal to the pressure threshold, the volume signal is less than the volume threshold, the speed signal is greater than or equal to the speed threshold, and the number of pedestrians is less than the number of people threshold, step 406 is executed.
Specifically, when the pressure signal is less than or equal to the pressure threshold, it indicates that the driver has a small force to press the horn switch body, and usually no emergency is encountered. When the volume signal is smaller than or equal to the volume threshold value, the automobile external environment is quieter. When the speed signal is greater than or equal to the speed threshold value, the vehicle speed is relatively high. When the number of pedestrians in the image signal is smaller than the number threshold, the number of pedestrians around the automobile is less. In this case, even if the vehicle speed is high, the possibility of collision with a pedestrian is low, and an effect of warning the pedestrian to avoid is achieved with a small horn sound, so step 407 is executed to sound a low-pitched horn.
As known to those skilled in the art: the control unit can have an image processing function, and after the image signal is acquired, the control unit can extract the number of pedestrians in a certain range in front of the automobile through processing the image signal.
In step 408, the control unit determines whether the generation duration of the second control signal is greater than a time threshold, and if so, executes step 409.
In steps 404 and 405, when each sensing signal satisfies the corresponding condition, the control unit generates a second control signal to make the woofer sound, and when one sensing signal does not satisfy the condition, the control unit closes the second control signal to make the woofer stop sounding.
In some cases, the bass horn ring is not enough to attract the attention of the pedestrian, for example, the pedestrian wears a headphone, makes a call, chats, and needs to attract the attention of the pedestrian in another way, such as increasing the horn volume.
The second control signal may be clocked by means of a timer arranged in the control unit, as known to the person skilled in the art, but also in other ways known to the person skilled in the art. The time threshold is a fixed value preset in the control unit.
In practical applications, the pressure threshold described in this implementation may be set to 50N (newtons), the volume threshold may be set to 60dB (decibels), the speed threshold may be set to 40km/h (kilometers per hour), and the people count threshold may be set to 5. Of course, as known to those skilled in the art, the threshold of each sensing signal can be set according to the requirements of the practical application, and is not limited to the above values.
In the control method of the speaker device provided by this embodiment, since the sensing unit can acquire the sensing information including the pressure information generated by pressing the speaker switch body and generate the sensing signal including the pressure signal, the control unit can judge according to the magnitude of the pressure signal after acquiring the sensing signal, or judge in combination with the magnitude of the other sensing signal after acquiring the pressure signal, so as to generate two different control signals, i.e. the first control signal or the second control signal, and when the first control signal is generated, the tweeter sounds, and when the second control signal is generated, the woofer sounds, so that when a speaker needs to be alerted by means of the tweeter, the tweeter and the woofer can automatically distinguish different situations to sound, and when a speaker needs to be alerted with a larger sound, the tweeter automatically sounds, when a person needs to be reminded by small sound, the woofer automatically rings, and then the environmental pollution caused by the noise of the automobile horn is effectively reduced.
Example 5
The present embodiment provides an automobile equipped with the horn device described in the above embodiment.
In the automobile provided by this embodiment, because the horn device described in the above embodiment is installed, the sensing unit in the horn device can acquire the sensing information including the pressure information generated by pressing the horn switch body, and generate the sensing signal including the pressure signal, and the sensing signal and the calculation and determination rules built in the control unit can be used to perform the determination according to the magnitude of the pressure signal, or after the pressure signal is acquired, the sensing signal is combined with the magnitude of other sensing signals to perform the determination, so as to generate two different control signals, namely, the first control signal or the second control signal, and the tweeter can generate a sound according to the first control signal, and the woofer can generate a sound according to the second control signal, so that when a pedestrian needs to be reminded by means of sounding the horn, the tweeter and the woofer can automatically distinguish different situations to sound, when a person needs to be reminded by large sound, the high-pitch horn automatically sounds, and when a person needs to be reminded by small sound, the low-pitch horn automatically sounds, so that the environmental pollution caused by the noise of the automobile horn is effectively reduced.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (2)
1. A control method of a speaker unit, characterized by controlling the speaker unit:
the horn device includes: the device comprises a sensor unit, a control unit, a tweeter and a woofer;
the sensor unit is electrically connected with the control unit and used for acquiring sensing information and generating a sensing signal; the sensor unit comprises a pressure sensor and is arranged on a horn switch body of the automobile; the sensing information comprises pressure information generated when a driver of the automobile presses the horn switch body, the sensing signal comprises a pressure signal, and the pressure sensor is used for acquiring the pressure information and generating the pressure signal;
the control unit is used for generating a first control signal or a second control signal according to the sensing signal;
the high pitch horn is used for generating a sound according to the first control signal;
the woofer is used for generating a sound according to the second control signal;
the sensor unit further comprises a volume sensor; the sensing information further comprises volume information generated by the external environment of the automobile, the sensing signal further comprises a volume signal, and the volume sensor is used for acquiring the volume information and generating the volume signal;
the sensor unit further comprises a vehicle speed sensor; the sensing information also comprises speed information generated when the automobile runs, the sensing signals also comprise speed signals, and the vehicle speed sensor is used for acquiring the speed information and generating the speed signals;
the sensor unit further comprises a panoramic camera; the sensing information further comprises image information of the surrounding environment of the automobile, the sensing signal further comprises an image signal, and the vehicle speed sensor is used for acquiring the image information and generating the image signal;
the control method comprises the following steps:
the control unit acquires the sensing signal, the sensing signal is generated by the sensing unit according to the acquired sensing information, and the method specifically comprises the following steps: the control unit acquires a pressure signal, and the pressure signal is generated by acquiring pressure information generated when a driver of the automobile presses a horn switch body by a pressure sensor in the sensor unit;
the control unit generates a first control signal or a second control signal according to the sensing signal, and specifically includes: the control unit generates a first control signal when judging that the pressure signal is greater than a pressure threshold value;
when the control unit generates a first control signal, the high pitch horn generates a sound; when the control unit generates a second control signal, the bass loudspeaker generates a sound;
the control unit acquires the sensing signal generated by the sensing unit according to the acquired sensing information, and further includes: the control unit acquires a volume signal, and the volume signal is generated by acquiring volume information generated by the external environment of the automobile through a volume sensor in the sensor unit; the control unit acquires a speed signal, and the speed signal is generated by acquiring speed information when the automobile runs by a speed sensor in the sensor unit; the control unit acquires an image signal, and the image signal is generated by acquiring image information of the surrounding environment of the automobile through a panoramic camera in the sensor unit;
the control unit generating a first control signal or a second control signal according to the sensing signal further comprises: the control unit generates a first control signal when judging that the pressure signal is smaller than or equal to the pressure threshold and the volume signal is larger than a volume threshold; the control unit generates a second control signal when judging that the pressure signal is smaller than or equal to the pressure threshold, the volume signal is smaller than or equal to a volume threshold and the speed signal is smaller than a speed threshold, and the control unit generates a first control signal when judging that the pressure signal is smaller than or equal to the pressure threshold, the volume signal is smaller than or equal to the volume threshold, the speed signal is larger than or equal to the speed threshold and the number of pedestrians in the image signal is larger than or equal to a number of people threshold; the control unit generates a second control signal when judging that the pressure signal is smaller than or equal to the pressure threshold, the volume signal is smaller than or equal to the volume threshold, the speed signal is larger than or equal to the speed threshold, and the number of pedestrians in the image signal is smaller than the number of people threshold.
2. The control method of claim 1, wherein when the control unit generates the second control signal for a period greater than a time threshold, the control unit turns off the second control signal while generating the first control signal.
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| CN109703454A (en) * | 2017-10-26 | 2019-05-03 | 长城汽车股份有限公司 | A kind of horn control circuit, loudspeaker control method and vehicle |
| CN108909613A (en) * | 2018-06-14 | 2018-11-30 | 万鹏 | A kind of remote control of motor vehicle loudspeaker and its control method |
| CN111071148A (en) * | 2018-10-19 | 2020-04-28 | 宝马股份公司 | Method, device and system for adaptively controlling volume of vehicle horn |
| CN113873400B (en) * | 2021-09-15 | 2023-10-20 | 一汽奔腾轿车有限公司 | Device and method integrated on steering wheel handle ring for controlling loudspeaker volume |
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| CN204367991U (en) * | 2014-12-12 | 2015-06-03 | 北京汽车研究总院有限公司 | Sound volume of automobile horn control system and automobile |
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