CN108839613A - Voice prompt method, equipment and vehicle when a kind of low speed is driven a vehicle - Google Patents
Voice prompt method, equipment and vehicle when a kind of low speed is driven a vehicle Download PDFInfo
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- CN108839613A CN108839613A CN201810726179.7A CN201810726179A CN108839613A CN 108839613 A CN108839613 A CN 108839613A CN 201810726179 A CN201810726179 A CN 201810726179A CN 108839613 A CN108839613 A CN 108839613A
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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
- B60Q5/005—Arrangement or adaptation of acoustic signal devices automatically actuated
- B60Q5/008—Arrangement or adaptation of acoustic signal devices automatically actuated for signaling silent vehicles, e.g. for warning that a hybrid or electric vehicle is approaching
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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
- B60Q5/005—Arrangement or adaptation of acoustic signal devices automatically actuated
- B60Q5/006—Arrangement or adaptation of acoustic signal devices automatically actuated indicating risk of collision between vehicles or with pedestrians
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- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
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Abstract
The application provides voice prompt method, equipment and the vehicle when a kind of driving of low speed, obtain the external environment sound pressure level of vehicle, when the running speed of the vehicle is less than preset running speed threshold value, the target sound pressure level of prompt tone is determined based on the external environment sound pressure level, and auditory tone cues are carried out based on the target sound pressure level.The application determines that vehicle issues the sound pressure level of prompt tone based on the sound pressure level of outside environmental sounds, realize the sound prompting actively adjusted based on environmental noise variation, to improve the effect of sound prompting when environment is more noisy, and avoid disturbing residents when environment is more quiet.
Description
Technical field
This application involves field of vehicle control, and in particular to a technique for auditory tone cues are carried out in low speed driving.
Background technique
Compared with orthodox car, electric car without exhaust gas, low noise and to more environment-friendly, widelyd popularize.But
It is that on the other hand, electric car is excessively quiet at runtime, it may be due to can not be discovered by pedestrian when especially running at a low speed
It threatens to the safety of pedestrian (especially blind person, old man, children etc.).A solution is to make electric car at runtime
It makes a sound to remind pedestrian to take care, but there are ineffective in noisy environment (such as business district) progress sound prompting
The problem of, and unnecessary noise may be become in quiet residential block prompt tone and disturbed residents.
Summary of the invention
For the problems of the prior art, the one kind that is designed to provide of the application carries out intelligent sound in low speed driving
The technology of prompt.
According to the one aspect of the application, voice prompt method when a kind of driving of low speed is provided, this method includes：
Obtain the external environment sound pressure level of vehicle；
When the running speed of the vehicle is less than preset running speed threshold value, based on external environment sound pressure level determination
The target sound pressure level of prompt tone；
Auditory tone cues are carried out based on the target sound pressure level.
According to further aspect of the application, auditory tone cues equipment when a kind of driving of low speed is provided, including：
Processor；And
It is configured as the memory of storage computer executable instructions, the executable instruction makes the place when executed
It manages device and executes following operation：
Obtain the external environment sound pressure level of vehicle；
When the running speed of the vehicle is less than preset running speed threshold value, based on external environment sound pressure level determination
The target sound pressure level of prompt tone；
Auditory tone cues are carried out based on the target sound pressure level.
According to the one aspect of the application, a kind of vehicle is provided, auditory tone cues equipment when including low speed driving is described
Auditory tone cues equipment includes：
Processor；And
It is configured as the memory of storage computer executable instructions, the executable instruction makes the place when executed
It manages device and executes following operation：
Obtain the external environment sound pressure level of vehicle；
When the running speed of the vehicle is less than preset running speed threshold value, based on external environment sound pressure level determination
The target sound pressure level of prompt tone；
Auditory tone cues are carried out based on the target sound pressure level.
According to further aspect of the application, the computer-readable medium including instruction is provided, described instruction is being held
System is set to execute following operation when row：
Obtain the external environment sound pressure level of vehicle；
When the running speed of the vehicle is less than preset running speed threshold value, based on external environment sound pressure level determination
The target sound pressure level of prompt tone；
Auditory tone cues are carried out based on the target sound pressure level.
The application can remind pedestrian to pay attention to close vehicle, keep away by issuing prompt tone when vehicle low speed is driven a vehicle
Exempt from may be due to can not be discovered to pedestrian's (especially blind person, old man, children etc.) when electric car is run at a low speed by pedestrian
The problem of safety threatens.On this basis, the application determines that vehicle sending is mentioned based on the sound pressure level of outside environmental sounds
Show the sound pressure level of sound, the sound prompting actively adjusted based on environmental noise variation is realized, to change when environment is more noisy
The effect of kind sound prompting, and avoid disturbing residents when environment is more quiet.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other features,
Objects and advantages will become more apparent upon.
Fig. 1 shows the flow chart of voice prompt method when driving a vehicle according to the low speed of the application one embodiment；
Fig. 2 shows the functional block diagrams of auditory tone cues equipment when being driven a vehicle according to a kind of low speed of the application one embodiment；
Fig. 3 shows a kind of auditory tone cues equipment realized based on vehicle CAN bus according to the application one embodiment
Functional block diagram.
Appended drawing reference：
100 auditory tone cues equipment
110 obtain module
111 sound transducers
120 processing modules
121 ECU controllers
130 output modules
131 loudspeakers
140 CAN bus
Specific embodiment
The application is described in further detail with reference to the accompanying drawing.
In a typical configuration of this application, terminal, the equipment of service network and trusted party include one or more
Processor (CPU), input/output interface, network interface and memory.
Memory may include the non-volatile memory in computer-readable medium, random access memory (RAM) and/or
The forms such as Nonvolatile memory, such as read-only memory (ROM) or flash memory (flashRAM).Memory is showing for computer-readable medium
Example.
Computer-readable medium includes permanent and non-permanent, removable and non-removable media can be by any method
Or technology come realize information store.Information can be computer readable instructions, data structure, the module of program or other data.
The example of the storage medium of computer includes, but are not limited to phase change memory (PRAM), static random access memory (SRAM), moves
State random access memory (DRAM), other kinds of random access memory (RAM), read-only memory (ROM), electric erasable
Programmable read only memory (EEPROM), flash memory or other memory techniques, read-only disc read only memory (CD-ROM) (CD-ROM),
Digital versatile disc (DVD) or other optical storage, magnetic cassettes, magnetic tape disk storage or other magnetic storage devices or
Any other non-transmission medium, can be used for storage can be accessed by a computing device information.
The application meaning equipment includes but is not limited to that user equipment, the network equipment or user equipment and the network equipment pass through
Network is integrated constituted equipment.The user equipment includes but is not limited to that any one can carry out human-computer interaction with user
The mobile electronic product, such as smart phone, tablet computer etc. of (such as human-computer interaction is carried out by touch tablet), the mobile electricity
Sub- product can use any operating system, such as android operating system, iOS operating system.Wherein, the network equipment
The electronic equipment of numerical value calculating and information processing can be carried out automatically according to the instruction for being previously set or storing including a kind of,
Hardware includes but is not limited to microprocessor, specific integrated circuit (ASIC), programmable logic device (PLD), field programmable gate
Array (FPGA), digital signal processor (DSP), embedded device etc..The network equipment includes but is not limited to computer, net
The cloud that network host, single network server, multiple network server collection or multiple servers are constituted；Here, cloud is by based on cloud
The a large number of computers or network servers for calculating (Cloud Computing) is constituted, wherein cloud computing is the one of distributed computing
Kind, a virtual supercomputer consisting of a loosely coupled set of computers.The network includes but is not limited to interconnect
Net, wide area network, Metropolitan Area Network (MAN), local area network, VPN network, wireless self-organization network (Ad Hoc network) etc..Preferably, the equipment
Can also be run on the user equipment, the network equipment or user equipment and the network equipment, the network equipment, touch terminal or
The network equipment and touch terminal are integrated the program in constituted equipment by network.
Certainly, those skilled in the art will be understood that above equipment is only for example, other are existing or are likely to occur from now on
Equipment be such as applicable to the application, should also be included within the application protection scope, and be incorporated herein by reference.
In the description of the present application, the meaning of " plurality " is two or more, unless otherwise specifically defined.
Voice prompt method when a kind of driving of low speed, the party are provided according to the one aspect of the application with reference to Fig. 1
Method includes step S110, step S120 and step S130.In some embodiments of the present application, this method is based on a kind of low speed row
Auditory tone cues equipment when vehicle realizes that the functional block diagram of the auditory tone cues equipment please refers to Fig. 2.The auditory tone cues equipment 100 packet
Include the acquisition module 110 for obtaining external environment sound pressure level, for determining prompt tone correlation according to external environment sound pressure level
The processing module 120 of output parameter and output module 130 for making a sound prompt.Below based on the auditory tone cues equipment
Voice prompt method when 100 pairs of low speed drivings provided herein is described in detail.
In step s 110, the external environment sound pressure level that module 110 obtains vehicle is obtained, in some embodiments outside this
Environment sound pressure level is the sound pressure level of noise in external environment；In the step s 120, it is preset when the running speed of the vehicle is less than
Running speed threshold value, processing module 120 determines the target sound pressure level of prompt tone based on the external environment sound pressure level, some
Processing module obtains the current driving speed of vehicle from vehicle speed sensor in embodiment, obtains said external from module 110 is obtained
Environment sound pressure level；In step s 130, output module 130 is based on the target sound pressure level and carries out auditory tone cues.
Specifically, in step s 110, the external environment sound pressure level that module 110 obtains vehicle is obtained, for example, obtaining mould
Block 110 includes sound transducer, obtains module 110 by the sound transducer and perceives the sound pressure level of environmental noise as external rings
Border sound pressure level.Then, in some embodiments, processing module 120 is obtained by the vehicle speed sensor of vehicle in the step s 120
Current vehicle speed, and compared with preset running speed threshold value (such as 20km/h)；If it is preset that current vehicle speed is less than this
Running speed threshold value, processing module 120 determine a target acoustic pressure based on external environment sound pressure level transmitted by module 110 is obtained
Grade, the target sound pressure level is for being sent to output module 130 to carry out sound prompting to pedestrian.For example, processing module 120 can be
On the basis of external environment sound pressure level (such as 35dB) increase certain numerical value (such as 20dB) afterwards determine a target sound pressure level (such as
55dB), to ensure the pedestrian under the external environment it will be noted that sound prompting or processing module 120 that vehicle issues are according to working as
The size of preceding external environment sound pressure level determines corresponding pre-set target sound pressure level.
In some embodiments, step S120 includes step S121 (not shown) and step S122 (not shown).In step
In S121, when the running speed of the vehicle is less than preset running speed threshold value, and the external environment sound pressure level is little
In one first sound pressure level threshold value, processing module 120, which arbitrarily downgrades a reference sound intensity, is determined as the target sound pressure level of prompt tone；In step
In S122, when the running speed is less than preset running speed threshold value, and the external environment sound pressure level is greater than described the
One sound pressure level threshold value, processing module 120, which arbitrarily downgrades the reference sound intensity, is determined as the target acoustic pressure with up-regulation a sum of sound pressure level
Grade.For example, the speed of service when vehicle is less than preset running speed threshold value, and environment nowadays sound pressure level has not yet been reached
Or more than one preset first sound pressure level threshold value (such as 35dB), processing module 120 arbitrarily downgrade a preset reference sound intensity conduct
The target sound pressure level (such as 55dB) of prompt tone；And the speed of service for working as vehicle is less than preset running speed threshold value, but it is outer
Portion environment sound pressure level (such as 55dB) has been more than above-mentioned first sound pressure level threshold value, and processing module 120 is in above-mentioned preset first sound
One up-regulation sound pressure level (such as 10dB) of superposition is on the basis of threshold value of arbitrarily downgrading to determine target sound pressure level (such as 65dB), to reduce noise
The influence of ambient noise prompt tone issued to vehicle under heterocycle border, to guarantee the auditory tone cues effect to pedestrian.
On the basis of the above, in some embodiments, when the running speed of the vehicle is less than preset running speed threshold
Value, and the external environment sound pressure level is not less than one second sound pressure level threshold value (such as 15dB), is not more than one first sound pressure level
Threshold value (such as 35dB), processing module 120 by a reference sound intensity arbitrarily downgrade (such as 55dB) be determined as the target sound pressure level of prompt tone；And
Voice prompt method when above-mentioned low speed is driven a vehicle further includes step S122 (not shown), in step S122, when the driving speed
Degree is less than preset running speed threshold value, and the external environment sound pressure level is less than the second sound pressure level threshold value, handles mould
Block 120 is arbitrarily downgraded (such as 55dB) by the reference sound intensity and the arbitrarily downgrade difference of (such as 10dB) of voicing once is determined as the target acoustic pressure
Grade (such as 45dB).When vehicle local environment is more quiet, it can be greatly reduced with lower sound pressure level progress auditory tone cues and be disturbed
The occurrence of people, for example, at dead of night enter cell when, can avoid influence community resident normal rest.
Certainly, in further embodiments, processing module 120 only can also actively turn down sound when external environment is quieter
The sound pressure level of prompt, the sound pressure level without auditory tone cues are actively turned up when external environment is more noisy.For example, when the vehicle
Running speed is less than preset running speed threshold value, and the external environment sound pressure level is less than a third sound pressure level threshold value, place
The difference that the reference sound intensity is arbitrarily downgraded and voicing once is arbitrarily downgraded is determined as the target sound pressure level by reason module 120；Concrete analysis process
With it is above-mentioned similar, repeat no more, and be incorporated herein by reference.
In some embodiments, processing module 120 needs to obtain said external environment sound pressure level, it is also necessary to obtain vehicle
Present position.The process for obtaining external environment sound pressure level can locally be completed in vehicle, can also be completed at remote equipment end, wherein far
Journey equipment includes but is not limited to the network equipment (such as can with the cloud server of vehicle communication etc.), is layed in setting for road surface two sides
It is standby or be configured as can be with other vehicles of vehicle local communication；And the process of the present position of vehicle is obtained then generally in vehicle
It is local to complete, such as the position coordinates that processing module 120 is presently in based on GPS sensor acquisition current vehicle.
In some embodiments, according to the above-mentioned present position of vehicle, when the running speed of the vehicle is less than preset
Running speed threshold value, processing module 120 determine the target of prompt tone based on the present position and the external environment sound pressure level
Sound pressure level.For example, be in a certain preset region when vehicle, processing module 120 be turned up on the basis of reference sound intensity is arbitrarily downgraded or
Person obtains target sound pressure level after turning down, output module 130 exports prompt tone according to the target sound pressure level again.
In some embodiments, in the step s 120, when the present position is contained within a predeterminable area, and
The running speed of the vehicle is less than preset running speed threshold value, and it is true that processing module 120 is based on the external environment sound pressure level
Determine the target sound pressure level of prompt tone.For example, the corresponding residential area of above-mentioned predeterminable area is (in other embodiments, above-mentioned default
Region corresponds to hospital, school etc., but the application is not limited), the vehicle that processing module 120 is obtained according to GPS sensor
Position coordinates judge current vehicle position, and when vehicle is located in predeterminable area corresponding to the residential area, processing module 120 exists
One reference sound intensity obtains target sound pressure level after turning down (such as reference sound intensity is arbitrarily downgraded to arbitrarily downgrade with voicing once and is subtracted each other) on the basis of arbitrarily downgrading,
Output module 130 is based on the target sound pressure level and exports prompt tone.In another example the corresponding business district of above-mentioned predeterminable area, handles mould
The position coordinates for the vehicle that block 120 is obtained according to GPS sensor judge current vehicle position, when vehicle be located at the business district institute it is right
In the predeterminable area answered, processing module 120 be turned up on the basis of a reference sound intensity is arbitrarily downgraded (such as by reference sound intensity arbitrarily downgrade with one up-regulation
Sound pressure level is added) after obtain target sound pressure level, output module 130 is based on the target sound pressure level and exports prompt tone.
In some embodiments, above-mentioned steps S120 includes step S123 (not shown) and step S124 (not shown).Its
In, in step S123, processing module 120 is by the relevant information of the present position (such as the vehicle obtained based on GPS sensor
The coordinate information of present position) it is sent to the corresponding network equipment (such as cloud server), and receive the network equipment
The position judgement whether being contained in about the present position within a predeterminable area returned based on the present position
As a result；In step S124, when the position judging result includes that the present position is contained within the predeterminable area,
And the running speed of the vehicle is less than preset running speed threshold value, determines prompt tone based on the external environment sound pressure level
Target sound pressure level.For example, whether the network equipment for receiving the present position of vehicle can be according to the present position in some cell
In the range of, the present position information for the vehicle being received is latitude and longitude coordinates, and the network equipment is inquired from map data base should
The corresponding boundary point latitude and longitude coordinates of cell, and judge that latitude and longitude coordinates transmitted by vehicle judge whether side corresponding in cell
In the polygonal region that boundary's point is surrounded；If judging that vehicle is currently located at the cell according to the latitude and longitude coordinates information that vehicle is sent
Within the scope of, then return to a judging result to vehicle (such as to processing module 120), the judging result include vehicle be located at it is default
Cell region in information, otherwise return to another judging result, be not located at it includes vehicle in the region of preset cell
Information.Processing module 120 determines whether vehicle is located within predeterminable area according to the judging result that the network equipment returns, if vehicle
It is located in the predeterminable area, then processing module 120 is at the operation of vehicle low speed (such as running speed is lower than preset threshold), root
The target sound pressure level of prompt tone is determined according to external environment sound pressure level.As a result, vehicle enter predeterminable area (such as residential area,
Hospital, school etc.) it is interior when, can be in conjunction with the horizontal adjustment auditory tone cues in real time of ambient noise, the crowd density especially in predeterminable area
It can guarantee the good result of auditory tone cues when larger.
In some embodiments, vehicle when carrying out auditory tone cues not only in conjunction with the current location of vehicle, herein in connection with current
Moment.For example, in the step s 120, when current time is contained within a preset period of time, the present position is contained in
Within one predeterminable area, and the running speed of the vehicle is less than preset running speed threshold value, and processing module 120 is based on institute
State the target sound pressure level that external environment sound pressure level determines prompt tone.
For example, above-mentioned preset period of time is daily 22:00 to next day 4:00, the usually resident in the period in residential area
It is resting.Assuming that current time is 23:30, processing module 120 judges current time in above-mentioned preset period of time；If vehicle exists
Enter residential area at this time and run at a low speed, processing module 120 determines the target of prompt tone based on the external environment sound pressure level
Sound pressure level.At this point, vehicle is when resident enters in cell the rest period, if cell environment is more quiet, vehicle can drop in due course
The sound pressure level of low prompt tone avoids disturbing residents under the premise of realizing safety prompt function.
In general, human ear is related with acoustic pressure to the perception of sound, but human ear is for different sound signal frequencies
There is different sensibility.For example, generally, human ear is more sensitive to the sound of 1kHz, and human ear is to the sensitivity of high-frequency sound
Property be higher than to the sensibility of low-frequency sound.Therefore, to the adjustment of prompt tone in addition to based on sound pressure level carry out, may be based on frequency into
Row.In some embodiments, the above method further includes step S125 (not shown).For example, in step s 110, processing module
120 obtain the present position (such as position coordinates of the vehicle obtained based on GPS sensor) of vehicles and the vehicle is outer
Portion's environment sound pressure level (such as the external environment sound pressure level is obtained based on sound transducer)；In step s 125, processing module 120
A target frequency is determined based on the present position, such as when vehicle is presently in position and is located in different regions, vehicle
The frequency of the prompt tone issued is also different；In step s 130, processing module 120 is based on the target frequency and described
Target sound pressure level carries out auditory tone cues.
In some embodiments, when the present position is contained in a predeterminable area, processing module 120 determines a mesh
Mark frequency is first frequency, otherwise determines that the target frequency is lower than above-mentioned first frequency or higher second frequency；?
In step S130, output module 130 carries out auditory tone cues based on the target frequency again.For example, when above-mentioned predeterminable area corresponding one
Residential area (in other embodiments, above-mentioned predeterminable area corresponds to hospital, school etc., but the application is not limited), processing
The position coordinates for the vehicle that module 120 is obtained according to GPS sensor judge current vehicle position, when vehicle is located at the residential area
In corresponding predeterminable area, processing module 120 determines that above-mentioned target frequency is 500Hz, and based on the target frequency and presets
Sound pressure level (such as 55dB) send and instruct to output module 130, output module 130 carries out sound based on the instruction that is received and mentions
Show, issue frequency be 500Hz, the prompt tone that sound pressure level is 55dB, disturb residents to avoid in cell；And works as vehicle and be not located at residence
In people's cell, then processing module 120 adjust above-mentioned target frequency be 1kHz, correspondingly output module 130 issue frequency be 1kHz,
Sound pressure level is the prompt tone of 55dB.In another example the corresponding business district of above-mentioned predeterminable area, processing module 120 is according to GPS sensor
The position coordinates of the vehicle of acquisition judge current vehicle position, when vehicle is located in predeterminable area corresponding to the business district, place
It manages module 120 and determines that above-mentioned target frequency is 1kHz, and based on the target frequency and preset sound pressure level (such as 55dB) to defeated
Module 130 sends instruction out, and output module 130 carries out auditory tone cues based on the instruction received, and sending frequency is 1kHz, acoustic pressure
Grade is the prompt tone of 55dB, to improve sensibility of the pedestrian to prompt tone under the environment of business district；And works as vehicle and be not located at noisy
In urban district, then processing module 120 adjust above-mentioned target frequency be 500Hz, correspondingly output module 130 issue frequency be 500Hz,
Sound pressure level is the prompt tone of 55dB, to avoid excessive noise is issued.
In some embodiments, the network equipment communicated with the processing module of vehicle 120 can be based on the vehicle
Present position judge in predetermined radii whether with the presence of other users mobile device, so that whether auxiliary judgment needs to carry out sound
Sound is reminded.For example, the network equipment is determined based on current location information transmitted by vehicle in one pre-set radius range of vehicle
The gsm communication base station of interior (such as 100 meters), and triangulation location is carried out to determine using vehicle as radius according to these base stations GSM
Above-mentioned predetermined radii circular scope in whether there is other users user equipment, and if it exists, then in the step s 120, when
The running speed of the vehicle is less than preset running speed threshold value, and the mesh of prompt tone is determined based on the external environment sound pressure level
Mark sound pressure level；In step s 130, output module 130 is based on the target sound pressure level and carries out auditory tone cues.Based on mobile communication
The tremendous development of network, mobile device (such as mobile phone) are held extensively, therefore in this case, if detecting near vehicle
To the mobile device of user, then vehicle is nearby probably with the presence of pedestrian, therefore vehicle only can have pedestrian to deposit in its vicinity
Under the premise of just will do it sound prompting, disturb residents to avoid system excessive exercise.
According to the one aspect of the application, auditory tone cues equipment when a kind of driving of low speed is provided, including：
Processor；And
It is configured as the memory of storage computer executable instructions, the executable instruction makes the place when executed
It manages device and executes following operation：
Obtain the external environment sound pressure level of vehicle；
When the running speed of the vehicle is less than preset running speed threshold value, based on external environment sound pressure level determination
The target sound pressure level of prompt tone；
Auditory tone cues are carried out based on the target sound pressure level.
According to further aspect of the application, a kind of vehicle is provided, auditory tone cues equipment when including low speed driving, institute
Stating auditory tone cues equipment includes：
Processor；And
It is configured as the memory of storage computer executable instructions, the executable instruction makes the place when executed
It manages device and executes following operation：
Obtain the external environment sound pressure level of vehicle；
When the running speed of the vehicle is less than preset running speed threshold value, based on external environment sound pressure level determination
The target sound pressure level of prompt tone；
Auditory tone cues are carried out based on the target sound pressure level.
Fig. 3 shows a kind of functional block diagram of auditory tone cues equipment realized based on vehicle CAN bus.Wherein, above-mentioned processing
Module 120 mainly includes sound transducer 111, and processing module 120 mainly includes the ECU controller 121 of vehicle, and output module
130 it is main include the loudspeakers 131 being installed in vehicle engine compartments, wherein sound transducer 111, ECU controller 121 and raise
Sound device 131 is connected to the CAN bus 140 of vehicle to communicate with the other equipment of vehicle.Optionally, vehicle further includes for feeling
The GPS module (or GPS sensor) for knowing vehicle latitude and longitude coordinates, is not shown in the figure.
According to the another aspect of the application, a kind of computer-readable medium including instruction is provided, described instruction exists
Being performed makes system execute following operation：
Obtain the external environment sound pressure level of vehicle；
When the running speed of the vehicle is less than preset running speed threshold value, based on external environment sound pressure level determination
The target sound pressure level of prompt tone；
Auditory tone cues are carried out based on the target sound pressure level.
Certainly, those skilled in the art will be understood that the function logic of above-mentioned vehicle is only for example, other are existing or modern
The function logic being likely to occur afterwards such as can be suitably used for the application, be also contained within the protection scope of the application.
It should be noted that the application can be carried out in the assembly of software and/or software and hardware, for example, can adopt
With specific integrated circuit (ASIC), general purpose computer or any other realized similar to hardware device.In one embodiment
In, the software program of the application can be executed to implement the above steps or functions by processor.Similarly, the application
Software program (including relevant data structure) can be stored in computer readable recording medium, for example, RAM memory,
Magnetic or optical driver or floppy disc and similar devices.In addition, hardware can be used to realize in some steps or function of the application, example
Such as, as the circuit cooperated with processor thereby executing each step or function.
In addition, a part of the application can be applied to computer program product, such as computer program instructions, when its quilt
When computer executes, by the operation of the computer, it can call or provide according to the present processes or technical solution.Ability
Field technique personnel will be understood that the existence form of computer program instructions in computer-readable medium includes but is not limited to source document
Part, executable file, installation package file etc., correspondingly, the mode that computer program instructions are computer-executed includes but unlimited
In：The computer directly execute the instruction perhaps the computer compile corresponding compiling is executed after the instruction again after program or
The computer reads and executes the instruction or the computer reads and executes journey after corresponding installation again after installing the instruction
Sequence.Here, computer-readable medium can be any available computer readable storage medium for computer access or lead to
Believe medium.
Communication media includes thereby including, for example, computer readable instructions, data structure, program module or other data
Signal of communication is transmitted to the medium of another system from a system.Communication media may include having the transmission medium led (such as electric
Cable and line, such as optical fiber, coaxial etc.) and can propagate wireless (not having the transmission the led) medium of energy wave, such as sound, electromagnetism,
RF, microwave and infrared.Computer readable instructions, data structure, program module or other data can be embodied as example wirelessly being situated between
Matter (such as carrier wave or be such as embodied as spread spectrum technique a part similar mechanism) in modulated message signal.Art
Language " modulated message signal " refers to that one or more feature is modified or is set in a manner of encoded information in the signal
Signal.Modulation can be simulation, digital or Hybrid Modulation Technology.
As an example, not a limit, computer readable storage medium may include such as computer-readable finger for storage
Enable, the volatile and non-volatile that any method or technique of the information of data structure, program module or other data is realized, can
Mobile and immovable medium.For example, computer readable storage medium includes but is not limited to volatile memory, such as with
Machine memory (RAM, DRAM, SRAM)；And nonvolatile memory, such as flash memory, various read-only memory (ROM, PROM,
EPROM, EEPROM), magnetic and ferromagnetic/ferroelectric memory (MRAM, FeRAM)；And magnetic and optical storage apparatus (hard disk,
Tape, CD, DVD)；Or other currently known media or Future Development can store the computer used for computer system
Readable information or data.
Here, including a device according to one embodiment of the application, which includes for storing computer program
The memory of instruction and processor for executing program instructions, wherein when the computer program instructions are executed by the processor
When, trigger method or technique scheme of the device operation based on aforementioned multiple embodiments according to the application.
It is obvious to a person skilled in the art that the application is not limited to the details of above-mentioned exemplary embodiment, Er Qie
In the case where without departing substantially from spirit herein or essential characteristic, the application can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and scope of the present application is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included in the application.Any reference signs in the claims should not be construed as limiting the involved claims.This
Outside, it is clear that one word of " comprising " does not exclude other units or steps, and odd number is not excluded for plural number.That states in device claim is multiple
Unit or device can also be implemented through software or hardware by a unit or device.First, second equal words are used to table
Show title, and does not indicate any particular order.
Claims (12)
- Voice prompt method when 1. a kind of low speed is driven a vehicle, wherein the method includes：The external environment sound pressure level of a acquisition vehicle；B is determined when the running speed of the vehicle is less than preset running speed threshold value based on the external environment sound pressure level The target sound pressure level of prompt tone；C is based on the target sound pressure level and carries out auditory tone cues.
- 2. according to the method described in claim 1, wherein the step b includes：The running speed that b1 works as the vehicle is less than preset running speed threshold value and the external environment sound pressure level is not more than When the first sound pressure level threshold value, reference sound intensity is arbitrarily downgraded and is determined as the target sound pressure level of prompt tone；B2 is when the running speed is less than preset running speed threshold value and the external environment sound pressure level is greater than described first When sound pressure level threshold value, the sum of arbitrarily downgrading and raise sound pressure level the reference sound intensity is determined as the target sound pressure level.
- 3. according to the method described in claim 1, wherein the step a includes：Obtain the present position of vehicle and the external environment sound pressure level of the vehicle；Wherein the step b includes：When the running speed of the vehicle is less than preset running speed threshold value, it is based on the present position and the external rings Border sound pressure level determines the target sound pressure level of prompt tone.
- 4. according to the method described in claim 3, wherein the step b includes：When the present position be contained within a predeterminable area and the running speed of the vehicle be less than preset driving When threshold speed, the target sound pressure level of prompt tone is determined based on the external environment sound pressure level.
- 5. according to the method described in claim 4, wherein the step b includes：When the present position is contained within a predeterminable area, the running speed of the vehicle is less than preset running speed Threshold value and when the external environment sound pressure level is less than the first sound pressure level threshold value, by the reference sound intensity arbitrarily downgrade and lower sound pressure level it Difference is determined as the target sound pressure level.
- 6. according to the method described in claim 4, wherein the step b includes：When the present position is contained in a predeterminable area, the running speed of the vehicle is less than preset running speed threshold It is worth and when the external environment sound pressure level is greater than the second sound pressure level threshold value, the sum of the reference sound intensity is arbitrarily downgraded and raises sound pressure level It is determined as the target sound pressure level.
- 7. according to the method described in claim 4, wherein the step b includes：When current time is contained within a preset period of time, the present position is contained within a predeterminable area and institute When stating the running speed of vehicle less than preset running speed threshold value, the mesh of prompt tone is determined based on the external environment sound pressure level Mark sound pressure level.
- 8. according to the method described in claim 1, wherein the step a includes：Obtain the present position of vehicle and the external environment sound pressure level of the vehicle；The method also includes：R determines a target frequency based on the present position；The step c includes：Auditory tone cues are carried out based on the target frequency and the target sound pressure level.
- 9. according to the method described in claim 8, wherein the step r includes：When the present position is contained within a predeterminable area, determine that a target frequency is first frequency；OtherwiseDetermine that the target frequency is second frequency；Wherein the first frequency is higher than the second frequency lower than the second frequency or the first frequency.
- Auditory tone cues equipment when 10. a kind of low speed is driven a vehicle, including：Processor；AndIt is configured as the memory of storage computer executable instructions, the executable instruction makes the processor when executed Execute following operation：Obtain the external environment sound pressure level of vehicle；When the running speed of the vehicle is less than preset running speed threshold value, mentioned based on external environment sound pressure level determination Show the target sound pressure level of sound；Auditory tone cues are carried out based on the target sound pressure level.
- 11. a kind of vehicle, auditory tone cues equipment when including low speed driving, the auditory tone cues equipment include：Processor；AndIt is configured as the memory of storage computer executable instructions, the executable instruction makes the processor when executed Execute following operation：Obtain the external environment sound pressure level of vehicle；When the running speed of the vehicle is less than preset running speed threshold value, mentioned based on external environment sound pressure level determination Show the target sound pressure level of sound；Auditory tone cues are carried out based on the target sound pressure level.
- 12. a kind of computer-readable medium including instruction, described instruction makes system execute following operation when executed：Obtain the external environment sound pressure level of vehicle；When the running speed of the vehicle is less than preset running speed threshold value, mentioned based on external environment sound pressure level determination Show the target sound pressure level of sound；Auditory tone cues are carried out based on the target sound pressure level.
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