CN109025557A - A kind of device and method detecting door lock for vehicle - Google Patents
A kind of device and method detecting door lock for vehicle Download PDFInfo
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- CN109025557A CN109025557A CN201810936041.XA CN201810936041A CN109025557A CN 109025557 A CN109025557 A CN 109025557A CN 201810936041 A CN201810936041 A CN 201810936041A CN 109025557 A CN109025557 A CN 109025557A
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- Prior art keywords
- door lock
- voice signal
- controller
- detected
- vehicle
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Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B81/00—Power-actuated vehicle locks
- E05B81/54—Electrical circuits
- E05B81/64—Monitoring or sensing, e.g. by using switches or sensors
- E05B81/72—Monitoring or sensing, e.g. by using switches or sensors the lock status, i.e. locked or unlocked condition
Abstract
The application discloses a kind of device and method for detecting door lock for vehicle, it is detected applied to the door lock to vehicle, wherein, detection device includes: microphone module and controller, controller is instructed to detected door lock sending action, microphone module obtains the voice signal for being detected door lock movement, and voice signal is sent to controller, so that voice signal is compared controller with the reference voice signal being obtained ahead of time based on the received, judge to be detected whether door lock acts by comparing result, so as to find to be detected the state of door lock in time, so that driver can be checked in time according to judging result, avoid the generation of safety accident, improve safe driving experience.
Description
Technical field
The present invention relates to technical field of vehicle detection more particularly to a kind of device and method for detecting door lock for vehicle.
Background technique
With the fast development of automobile industry and intelligence science and technology, requirement of the consumer for automobile various aspects is also increasingly
Height, particularly in terms of safe driving, putting forward higher requirements and standard.
Important composition component of the door lock for vehicle as vehicle, working condition are directly related to the life of driver and occupant
Safety cannot lock if door lock for vehicle breaks down, and when vehicle in the process of moving open suddenly by car door, will lead to safety
The generation of accident；If, cannot be normally-open after car door locking, driving experience be influenced.
Therefore, it is necessary to the working conditions to door lock for vehicle to detect in time, when preventing door lock for vehicle from breaking down, cause
The generation of safety accident, and then influence driving experience.
Summary of the invention
In order to solve the above technical problem existing in the prior art, the embodiment of the present invention provides a kind of detection door lock for vehicle
Device and method, can promptly and accurately detect door lock for vehicle whether can it is normally-open or locking, avoid the generation of safety accident,
Improve safe driving experience.
To solve the above problems, the embodiment of the present application is in a first aspect, provide a kind of equipment for detecting door lock for vehicle, application
It is detected in the door lock to vehicle, which includes: microphone module and controller；
The microphone module is installed on the vehicle；
The controller, for sending door lock action command to detected door lock；
The microphone module, for obtaining the voice signal of the detected door lock movement；
The controller, the voice signal sent for receiving the microphone module, according to the voice signal, by institute
It states voice signal to be compared with the reference voice signal being obtained ahead of time, whether the detected door lock is judged according to comparison result
Movement.
Optionally, the equipment further include: current detection circuit；
The controller, for sending the door lock action command to motor, the motor is for driving described be detected
Door lock movement；
The current detection circuit, for obtaining the operating current of the motor；
The controller is also used to receive the operating current that the current detection circuit is sent, by the operating current with
The reference work electric current being obtained ahead of time is compared, and judges whether the detected door lock acts according to comparison result；By basis
The judging result that the voice signal obtains compares with the judging result obtained according to the operating current to be verified mutually.
Optionally, the controller, for sending unlocking action instruction to detected door lock；
The microphone module, the voice signal unlocked for obtaining the detected door lock；
The controller, the voice signal sent for receiving the microphone module, according to the voice signal, by institute
It states voice signal to be compared with the reference voice signal being obtained ahead of time, whether the detected door lock is judged according to comparison result
It opens.
Optionally, the controller, for sending locking action command to detected door lock.
The microphone module, for obtaining the voice signal of the detected door lock locking；
The controller, the voice signal sent for receiving the microphone module, according to the voice signal, by institute
It states voice signal to be compared with the reference voice signal being obtained ahead of time, whether the detected door lock is judged according to comparison result
Locking.
Optionally, the microphone module, be also used to be obtained ahead of time the door lock for vehicle it is not operating when background sound message
Number, and the background noise signal is sent to the controller；
The controller is also used to before being compared the voice signal with the reference voice signal being obtained ahead of time
The background noise signal is subtracted from the voice signal.
Optionally, the microphone module be obtained ahead of time the door lock for vehicle it is not operating when background noise signal, specifically
Are as follows:
The microphone module repeatedly obtain in advance the door lock for vehicle it is not operating when background noise signal, and will be multiple
The background noise signal of acquisition is sent to the controller；
The background noise signal repeatedly obtained is averaged as final background noise signal by the controller；
The controller subtracts the background noise signal from the voice signal, specifically:
The controller subtracts the final background noise signal from the voice signal.
Optionally, the controller is that each unique ID is arranged in detected door lock；The controller is detected by described
The ID of door lock sends the unlocking instruction.
Optionally, when the controller judges that the detected door lock is not operating, the ID of the detected door lock is returned,
And shown on control screen in the car, so that user checks.
Optionally, the controller is located at automobile or is located at remote server.
Optionally, the equipment further includes remote server；
The controller is also used to the voice signal being sent to the remote server；
The remote server, for carrying out the change that analysis obtains voice signal to the voice signal by neural network
Change curve, judges whether the door lock for vehicle is normal according to the change curve.
The embodiment of the present application second aspect, provides a kind of method for detecting door lock for vehicle, and the method is applied to first
Equipment described in aspect, which comprises
The controller sends door lock action command to detected door lock；
The controller receives the voice signal that the microphone module is sent；The voice signal is by the microphone
The voice signal that module is obtained when the detected door lock acts；
The voice signal is compared by the controller with the reference voice signal being obtained ahead of time, according to comparison result
Judge whether the detected door lock acts.
Optionally, the method also includes:
The controller sends the door lock action command to motor, and door lock movement is detected described in the motor driven；
The controller receives the operating current that current detection circuit is sent；The operating current is by the current detecting
Circuit detects electric current when motor work；
The controller judge the operating current whether with the reference work currents match that is obtained ahead of time, if not, sentencing
Break the detected latch failure.
Compared with prior art, the present invention has at least the following advantages:
The device and method of detection door lock for vehicle provided by the invention, are detected applied to the door lock to vehicle, wherein
Detection device includes: microphone module and controller, and controller is instructed to detected door lock sending action, and microphone module obtains
It is detected the voice signal of door lock movement, and voice signal is sent to controller, so that controller sound based on the received
Signal is compared with the reference voice signal being obtained ahead of time, and judges to be detected whether door lock acts by comparing result, thus
It can find that the state for being detected door lock avoids safety so that driver can be checked in time according to judging result in time
The generation of accident improves safe driving experience.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The some embodiments recorded in application, for those of ordinary skill in the art, without creative efforts,
It can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is a kind of equipment structure chart for detecting door lock for vehicle provided in an embodiment of the present invention；
Fig. 2 is the equipment structure chart of another detection door lock for vehicle provided in an embodiment of the present invention；
Fig. 3 is that display schematic diagram is shielded in middle control provided in an embodiment of the present invention；
Fig. 4 is the equipment structure chart of another detection door lock for vehicle provided in an embodiment of the present invention；
Fig. 5 A is the schematic diagram that a kind of motor driven provided in an embodiment of the present invention is detected door lock movement；
Fig. 5 B is that operating current changes schematic diagram when door lock provided in an embodiment of the present invention works normally；
Fig. 6 is a kind of method flow diagram for detecting door lock for vehicle provided in an embodiment of the present invention.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only this
Invention a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art exist
Every other embodiment obtained under the premise of creative work is not made, shall fall within the protection scope of the present invention.
The technical solution provided to facilitate the understanding of the present invention carries out letter to the application scenarios of technical solution of the present invention below
Unitary declaration.
The equipment of detection door lock for vehicle provided by the invention, is mainly used in the electric vehicle for logistics of small range traveling, due to
The frequency of use of electric vehicle for logistics is higher, and traveling amount is larger, for the normally travel for guaranteeing electric vehicle for logistics, needs to each of vehicle
Components are detected in time, for lock, due to its life security concerning driver and occupant, it is necessary to ensure that
Lock is working properly, it is therefore desirable to the working condition of detection lock in time, so that driver can be according to the working condition of lock
Take corresponding measure.
Based on this, using the equipment of detection door lock for vehicle provided by the invention, which includes microphone module and control
Device, microphone module are installed on vehicle, and controller sends door lock action command to detected door lock；Microphone module is in door lock
Corresponding voice signal is obtained when movement, and the voice signal is sent to controller, by controller by the voice signal and in advance
The reference voice signal first obtained is compared, and is judged to be detected whether door lock acts according to comparison result, so that judgement is gone out
Whether lock is opened or locks, so that driver can obtain the working condition of door lock in time, avoids the generation of safety accident, improves
Safe driving experience.
Embodiment one
It is situated between in detail below in conjunction with equipment of the attached drawing to a kind of detection door lock shown in exemplary embodiment of the present
It continues.
Referring to Fig. 1, which is a kind of equipment structure chart for detecting door lock for vehicle provided in an embodiment of the present invention.
For the equipment application of detection door lock for vehicle provided in this embodiment in electric car, the electric car includes pure electric vehicle
Automobile and hybrid vehicle.
Wherein, hybrid vehicle refers to oil-electric vehicle, that is, uses traditional internal combustion engine (diesel engine or gasoline
Machine) and motor as power source.When the not enough power supply of hybrid vehicle, it can use engine and power source be provided；When
When the fuel shortage of hybrid vehicle, it can use motor and power source be provided, the two can be complementary, improves vehicle continuation of the journey
Mileage.
The equipment of detection door lock for vehicle provided in this embodiment includes: controller 101 and microphone module 102.
The microphone module 102 is installed on the vehicle.
The controller 101, for sending door lock action command to detected door lock 103.
The microphone module 102, the voice signal acted for obtaining the detected door lock 103.
The controller 101, the voice signal sent for receiving the microphone module, according to the voice signal,
The voice signal is compared with the reference voice signal being obtained ahead of time, the detected door lock is judged according to comparison result
Whether act.
Wherein, controller 101 can be the entire car controller of vehicle, or the controller being independently arranged.
Wherein, the reference voice signal being obtained ahead of time, which can be, detects the door lock of vehicle before vehicle release, obtains
Voice signal when door lock movement is obtained, is saved as reference voice signal in the controller, to be received when controller
When the voice signal that microphone module is sent, which is compared with the reference voice signal of preservation, and then judged
Whether door lock acts.
In the present embodiment, controller give be detected door lock send door lock action command so that be detected door lock open or
Locking can generate sound when door lock is opened or is locked under normal circumstances, and microphone module obtains the sound of door lock movement at this time
Sound signal, and the voice signal is sent to controller, received voice signal and reference voice signal are carried out by controller
Compare, obtains the working condition of door lock in time.
Wherein, received voice signal is compared by controller with reference voice signal, specifically, in advance to reference sound
Sound signal carries out Fourier analysis, obtains the corresponding digitized spectra of reference voice signal, which is stored in control
In device processed, then Fourier analysis is carried out to received voice signal, obtains the digitized spectra of the voice signal, judge the sound
Whether the digitized spectra of signal matches with reference voice signal frequency spectrum, if the two matches, shows that door lock acts, working properly；
If large error occurs in the two, show that door lock breaks down.
The equipment of the detection door lock for vehicle provided through the embodiment of the present invention, controller send door lock to detected door lock and move
It instructs；Microphone module obtains corresponding voice signal when door lock acts, and the voice signal is sent to controller, by
The voice signal is compared by controller with the reference voice signal being obtained ahead of time, and is judged to be detected door lock according to comparison result
Whether act, to judge whether door lock is opened or lock, so that driver can obtain the working condition of door lock in time, keeps away
Exempt from the generation of safety accident, improves safe driving experience.
By above-mentioned it is found that the movement of door lock includes unlocking and locking, and door lock generated sound in unlocking or locking
Sound signal is different, corresponding detection when will introduce door lock unlocking respectively below or locking.It should be noted that this implementation
In example, door lock for vehicle not only includes the door lock of car door, can also include the door lock of boot.
Embodiment two
Referring to fig. 2, which is the equipment structure chart of another detection door lock for vehicle provided in an embodiment of the present invention.
In the present embodiment, equipment includes: controller 101 and microphone module 102.
The microphone module 102 is installed on the vehicle.
The controller 101, for sending unlocking action instruction to detected door lock.
The microphone module 102, the voice signal unlocked for obtaining the detected door lock.
The controller 101, the voice signal sent for receiving the microphone module, according to the voice signal,
The voice signal is compared with the reference voice signal being obtained ahead of time, the detected door lock is judged according to comparison result
Whether unlock.
Wherein, it reference voice signal is obtained ahead of time can be and the door lock of vehicle is detected before vehicle release, obtain
Door lock corresponding voice signal when unlocking, and save as reference voice signal in the controller, to be connect when controller
When receiving the voice signal of microphone module transmission, which is compared with the reference voice signal of preservation, in turn
Judge whether door lock unlocks.When the received voice signal of controller is matched with reference voice signal, judge that being detected door lock opens
Lock；When the received voice signal of controller and reference voice signal error are larger, judge that being detected door lock does not unlock.And it will sentence
Disconnected result returns to driver, so that driver checks in time, improves the user experience.
In some embodiments, the controller 101, for sending locking action command to detected door lock.
The microphone module 102, for obtaining the voice signal of the detected door lock locking.
The controller 101, the voice signal sent for receiving the microphone module, according to the voice signal,
The voice signal is compared with the reference voice signal being obtained ahead of time, the detected door lock is judged according to comparison result
Whether lock.
Wherein, it reference voice signal is obtained ahead of time can be and the door lock of vehicle is detected before vehicle release, obtain
Door lock corresponding voice signal when locking, and save as reference voice signal in the controller, to be connect when controller
When receiving the voice signal of microphone module transmission, which is compared with the reference voice signal of preservation, in turn
Judge whether door lock locks.When the received voice signal of controller is matched with reference voice signal, judge to be detected on door lock
Lock；When the received voice signal of controller and reference voice signal error are larger, judge that detected door lock is unlocked.And it will sentence
Disconnected result returns to driver, so that driver checks in time, avoids the generation of safety accident, improves safe driving.
In the present embodiment, controller can be located at automobile, can also be located at remote server.When controller is located at automobile
When, it is operated compared with reference voice signal according to voice signal in local progress about controller.When controller is located at long-range clothes
When business device, voice signal operates compared with reference voice signal to carry out in remote server, is specifically as follows, controller will connect
The voice signal of receipts is sent to remote server, and by remote server, voice signal and reference voice signal are carried out based on the received
Compare, is judging whether door lock is normal according to comparison result.
The present embodiment can also judge whether door lock normal using neural network, specifically, the controller, be also used to by
The voice signal is sent to the remote server；The remote server, for being believed by neural network the sound
The change curve that analysis obtains voice signal number is carried out, judges whether the door lock for vehicle is normal according to the change curve.
In practical application, the voice signal generated when door lock for vehicle movement can be obtained repeatedly, believed using multiple sound
Number training neural network, the neural network after being trained, since the neural network after training has obtained the normal work of door lock for vehicle
As when the change curve feature of voice signal that generates, therefore, the neural network after training can be according to input audio signal
Change curve feature judges whether door lock for vehicle is normal.
The voice signal is sent to far when controller receives the voice signal of microphone module transmission based on this
Journey server, by remote server by the neural network after voice signal input training, the change curve for obtaining voice signal is special
Sign, the neural network after training judge whether door lock for vehicle is normal according to change curve feature.
It is understood that can be acquired unavoidably when obtaining the voice signal for being detected door lock movement using microphone module
Other components reasons for its use voice signals, in order to guarantee controller when carrying out voice signal judgement, the sound judged
Signal is the voice signal for being detected door lock movement, improves the accuracy of subsequent judgement, and the present embodiment carries out sound in controller
Before signal judgement, be filtered the voice signal that microphone module acquires except making an uproar.
In some embodiments, background noise signal is obtained ahead of time；The controller is by the voice signal and in advance
Before the reference voice signal first obtained is compared, it is also used to subtract the background noise signal from the voice signal.
Wherein, the voice signal that background noise signal can generate for other components of vehicle, naturally it is also possible to be other
The voice signal that object generates.
In the present embodiment, background noise signal can be obtained ahead of time, and be stored in controller, sound is believed in controller
Before number being compared, the voice signal that microphone module is sent is subtracted into the background noise signal prestored, guarantees controller point
The voice signal of analysis is the voice signal for being detected door lock movement, avoids influence of the background noise signal to analysis result, thus
It improves to detect and is detected door lock accuracy of action.
It is repeatedly carried on the back in advance in some embodiments to guarantee removal background noise signal as much as possible
The background noise signal repeatedly obtained is averaged as final background noise signal by scape voice signal；The controller from
The background noise signal is subtracted in the voice signal, specifically: the controller subtracts described from the voice signal
Final background noise signal.
In the present embodiment, final background noise signal can be stored in controller, voice signal is carried out in controller
Before comparing, final background noise signal is subtracted from voice signal and obtains final voice signal, so that controller is by final sound
Sound signal is compared with reference voice signal, by removing background noise signal, improves the standard of detection door lock for vehicle movement
True property.
The method of specific removal background noise signal can be according to the feature of background noise signal, using different filtering sides
Method is eliminated.For example, background noise signal is rendered as high-frequency characteristic, low-pass filtering method can be used, by background sound message
Number filtering；Characteristics of low-frequency is presented in background noise signal, can use high-pass filtering method, background noise signal is filtered.Certainly,
It can also be removed, the present embodiment does not limit herein according to other attributes of background noise signal.
In the present embodiment, when there is the case where becoming rusty extremely or blocking in door lock, door lock akinesia, therefore sound will not be generated
Signal, then it is background noise signal that microphone module, which obtains voice signal, at this time, therefore when controller believes received sound
Number subtract after background noise signal that there is no when voice signal, judge that door lock breaks down.
It for latch failure, present embodiments provides when judging latch failure, warning reminding is carried out to driver, so that
Obtaining driver, lock overhauls on the door in time.Specifically, when controller judges latch failure, control warning piece alarm.Wherein,
Warning piece can be buzzer, light emitting diode or voice broadcasting system etc..
It is understood that electric car includes at least two car doors, the corresponding door lock of each car door, to vehicle doorn
When lock detection, only one of door lock for vehicle can be detected, can also be detected simultaneously, to be in advance every convenient for control
A detected door lock distributes ID, so that controller sends door lock action command to door lock using ID.
In some embodiments, the controller is that each unique ID is arranged in detected door lock；The controller passes through
The ID of the detected door lock sends the unlocking instruction.
In the present embodiment, the ID of each detected door lock can be saved into controller in advance, when controller need to
When certain is detected door lock transmission door lock action command, certain ID for being detected door lock is obtained, gives detected door lock to send door by ID
Action command is locked, and then detected door lock is driven to be acted.
When the controller judges that the detected door lock is not operating, the ID of the detected door lock is returned to, and in vehicle
It is shown on control screen in, so that user checks.
In order to make it easy to understand, being introduced by taking 5 door lock for vehicles as an example.As shown in Fig. 2, for example, the ID of door lock 1031 is
1, the ID of door lock 1032 is 2, the ID of door lock 1033 is 3, and the ID of door lock 1034 is 4, the ID of door lock 1035 is 5, when needing to detect
When door lock 1031 and door lock 1034 whether working properly, controller 101 obtains the ID:1 and 4 for being detected door lock, by ID to quilt
It detects door lock 1031 and door lock 1034 sends locking action command, microphone module 102 is obtained respectively by door lock 1031 and door lock
Voice signal when 1034 locking, and the voice signal of acquisition is sent to controller 101, by controller 101 according to acquisition
Voice signal is compared with the reference voice signal being obtained ahead of time, and judges whether door lock 1031 and door lock 1034 lock, when obtaining
The voice signal of two door locks when being matched with reference voice signal, judge the normally locking of door lock 1031 and door lock 1034；When
Wherein any one voice signal does not match with reference voice signal, judges that event occurs in the corresponding door lock of not matched voice signal
Barrier, the ID of the door lock can be returned, and shown on the middle control screen of vehicle, so that driver can have found door in time
Lock unlocked, guarantee driving safety.
Controller is according to judging result, and control screen shows unlocked car door in control, and middle control shown in Figure 3, which is shielded, to be shown
It is intended to, when controller judges door lock 1031 and door lock 1034 is unlocked, according to the corresponding ID of door lock in middle control screen display
Unlocked car door prompts driver door unlocked, so that driver can have found unlocked car door in time, avoids safety accident
Generation.
It is understood that the I/O interface of controller is limited, to guarantee accurately to realize the detection to each door lock, control
Device processed is encoded before sending door lock action command to detected door lock, can accurately be received with guaranteeing to be detected door lock
Door lock action command.For example, showing to detect door lock 1031 when being encoded to 0001；When being encoded to 0010, show to door lock
1032 are detected；When being encoded to 0011, show to detect door lock 1033；When being encoded to 1000, show to door lock 1034
It is detected；When being encoded to 1001, show to detect door lock 1035；When being encoded to 1111, show to all door locks into
Row detection.
The equipment of the detection door lock for vehicle provided through this embodiment, can be dynamic by sending unlocking action instruction or locking
It instructing, the voice signal generated when being acted using detected door lock judges to be detected whether door lock works normally, so as to
Promptly and accurately whether detection door lock for vehicle can be normally-open or locks, and avoids the generation of safety accident, improves safe driving experience.
Embodiment three
The equipment for present embodiments providing another detection door lock for vehicle, below in conjunction with attached drawing to provided in this embodiment
Equipment is introduced.
Referring to fig. 4, which is the equipment structure chart of another detection door lock for vehicle provided in an embodiment of the present invention.
Equipment includes: controller 101 and microphone module 102 in the present embodiment, further includes: current detection circuit 104.
Microphone module 102, the voice signal acted for obtaining detected door lock 103, and by the voice signal of acquisition
It is sent to controller 101.
Controller 101, for sending the door lock action command to motor 105, the motor 105 is for driving the quilt
Detect door lock movement.
Current detection circuit 104, for obtaining the operating current of the motor 105.
Controller 101, be also used to receive operating current that the current detection circuit 104 is sent by the operating current with
The reference work electric current being obtained ahead of time is compared, and judges whether the detected door lock acts according to comparison result；It will be by root
It compares according to the judging result that the voice signal obtains with the judging result obtained according to the operating current and is tested mutually
Card.
Wherein, the reference work electric current being obtained ahead of time can be for before door lock factory, the motor driven door lock of acquisition be acted
When the operating current that is utilized.
The principle of motor driven door lock movement can be connected by magnet coil between motor and door lock, the magnet wire
Circle is specifically as follows relay, which is generally made of iron core, coil, armature and contact reed etc., when motor is in coil
When both ends add electric current, coil can generate galvanomagnetic-effect, and with the increase of electric current, the electromagnetic force of generation is also bigger, and armature can be
Iron core is drawn under the action of electromagnetic attracting force, so that the movable contact with moving armature and normally opened contact are attracted, so that driving gate is locked
Lock, after door lock locking, the driving operating current that motor provides is in stable state, so that the movable contact and normally opened contact of armature
It is kept closed.
Therefore, in the present embodiment, to guarantee that movable contact and the normally opened contact of armature are attracted, the operating current that motor provides is held
Continuous to increase, when reaching certain current peak, two contacts are attracted, and door lock locking after door lock is in locked state, avoids motor from mentioning
The electric current of confession results in waste of resources because being constantly in peak state, and the electric current that motor provides can be reduced to a certain current value,
So that electric current is in stable state, but the actuation of contact can be still kept under the stable state.
For ease of understanding, the schematic diagram of door lock movement is detected referring to a kind of motor driven shown in Fig. 5 A, when motor 105 is given
When 106 coil of relay provides operating current, coil generating electromagnetic induction, when the operating current that motor 105 provides increases,
The electromagnetic force that coil generates is also bigger, and when the operating current that motor 105 provides reaches a certain current peak, normally opened contact is in electricity
It is closed under the action of magnetic force, is detected door lock locking to control, after the locking of detected door lock, electromagnetic force keeps stablizing shape
State, since electromagnetic force is related to electric current, i.e., the electric current that motor 105 provides is in stable state, and as shown in Figure 5 B, Fig. 5 B is door lock
When normal work, operating current provided by motor, i.e. reference work electric current.When current detection circuit obtain operating current with
When the reference work curent change trend matching of Fig. 5 B, shows that door lock is working properly, locked；It is obtained when current detection circuit
When the reference work electric current of operating current and Fig. 5 B mismatch, show that door lock breaks down.For example, what current detection circuit obtained
Operating current continues to increase, and not shown stable state, shows that door lock goes wrong, and is not able to achieve locking.
It should be noted that Fig. 5 B is only used as illustrative diagram, not to reference work curent change of the embodiment of the present invention
Trend limits.
In the present embodiment, controller can also will obtain judging result according to operating current and be sentenced with according to voice signal
Disconnected result compares and is verified mutually, to improve the accuracy of judging result.
The equipment provided through this embodiment can use the operating current that current detection circuit obtains motor, so that
Controller is matched according to operating current with reference work electric current, thus judge to be detected whether door lock breaks down, moreover,
Controller can also will obtain judging result according to voice signal and be compared according to operating current acquisition judging result and be carried out mutually
It mutually verifies, improves the accuracy of judging result, so that when detected door lock breaks down, driver can be carried out in time more
It changes, avoids the generation of safety accident, improve safe driving experience.
Example IV
A kind of method for detecting door lock for vehicle is present embodiments provided, below in conjunction with attached drawing to side provided in this embodiment
Method is introduced.
Referring to Fig. 6, which is a kind of method flow diagram for detecting door lock for vehicle provided in an embodiment of the present invention.
Method provided in this embodiment includes:
S401: controller sends door lock action command to detected door lock.
In the present embodiment, door lock action command can instruct for unlocking action or locking action command.
S402: controller receives the voice signal that the microphone module is sent；The voice signal is by the Mike
The voice signal that wind module is obtained when the detected door lock acts.
In the present embodiment, when the action command difference that controller is sent, microphone module voice signal obtained
It is different.If controlling the action command sent is unlocking action instruction, the voice signal that microphone module obtains is detected
The voice signal that door lock generates when unlocking；If the work order that controller is sent is locking action command, microphone module
The voice signal of acquisition is to be detected the voice signal generated when door lock locking.
S403: controller according to the voice signal, by the voice signal and the reference voice signal that is obtained ahead of time into
Row compares, and judges whether the detected door lock acts according to comparison result.
When the received voice signal difference of controller, then used reference voice signal is also different when comparing, and works as control
When the received voice signal of device processed is corresponding voice signal when unlocking, then reference voice signal is the unlocking sound being obtained ahead of time
Signal；When the received voice signal of controller is locking when corresponding voice signal, then reference voice signal is to be obtained ahead of time
Locking voice signal, be compared using corresponding reference voice signal, improve the accuracy of judging result.
In some embodiments, the method also includes:
The controller sends the door lock action command to motor, and door lock movement is detected described in the motor driven；
The controller receives the operating current that current detection circuit is sent；The operating current is detected by the current detection circuit
The electric current when motor works；The controller judge the operating current whether with the reference work electric current that is obtained ahead of time
Match, if not, judging the detected latch failure.
It should be noted that the method for the present embodiment can be applied to Fig. 1, Fig. 2 and detection door lock for vehicle shown in Fig. 3
In equipment, details are not described herein for the present embodiment.
The method provided through the embodiment of the present invention, controller, which is given, is detected door lock transmission door lock action command, microphone
Module obtains corresponding voice signal when door lock acts, and the voice signal is sent to controller, by controller by the sound
Sound signal is compared with the reference voice signal being obtained ahead of time, and is judged to be detected whether door lock acts according to comparison result, from
And judge whether door lock is opened or lock, so that driver can obtain the working condition of door lock in time, avoid safety accident
Generation, improve safe driving experience.
It should be appreciated that in this application, " at least one (item) " refers to one or more, and " multiple " refer to two or two
More than a."and/or" indicates may exist three kinds of relationships, for example, " A and/or B " for describing the incidence relation of affiliated partner
It can indicate: only exist A, only exist B and exist simultaneously tri- kinds of situations of A and B, wherein A, B can be odd number or plural number.Word
Symbol "/" typicallys represent the relationship that forward-backward correlation object is a kind of "or"." at least one of following (a) " or its similar expression, refers to
Any combination in these, any combination including individual event (a) or complex item (a).At least one of for example, in a, b or c
(a) can indicate: a, b, c, " a and b ", " a and c ", " b and c ", or " a and b and c ", and wherein a, b, c can be individually, can also
To be multiple.
The above described is only a preferred embodiment of the present invention, being not intended to limit the present invention in any form.Though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention.It is any to be familiar with those skilled in the art
Member, without departing from the scope of the technical proposal of the invention, all using the methods and technical content of the disclosure above to the present invention
Technical solution makes many possible changes and modifications or equivalent example modified to equivalent change.Therefore, it is all without departing from
The content of technical solution of the present invention, according to the technical essence of the invention any simple modification made to the above embodiment, equivalent
Variation and modification, all of which are still within the scope of protection of the technical scheme of the invention.
Claims (12)
1. a kind of equipment for detecting door lock for vehicle, which is characterized in that detected applied to the door lock to vehicle, the equipment packet
It includes: microphone module and controller；
The microphone module is installed on the vehicle；
The controller, for sending door lock action command to detected door lock；
The microphone module, for obtaining the voice signal of the detected door lock movement；
The controller, the voice signal sent for receiving the microphone module, according to the voice signal, by the sound
Sound signal is compared with the reference voice signal being obtained ahead of time, and judges whether the detected door lock moves according to comparison result
Make.
2. the equipment of detection door lock for vehicle according to claim 1, which is characterized in that the equipment further include: electric current inspection
Slowdown monitoring circuit；
The controller, for sending the door lock action command to motor, the motor is for driving the detected door lock
Movement；
The current detection circuit, for obtaining the operating current of the motor；
The controller is also used to receive the operating current that the current detection circuit is sent, by the operating current and in advance
The reference work electric current of acquisition is compared, and judges whether the detected door lock acts according to comparison result；It will be according to described
The judging result that voice signal obtains compares with the judging result obtained according to the operating current to be verified mutually.
3. the equipment of detection door lock for vehicle according to claim 1, which is characterized in that
The controller, for sending unlocking action instruction to detected door lock；
The microphone module, the voice signal unlocked for obtaining the detected door lock；
The controller, the voice signal sent for receiving the microphone module, according to the voice signal, by the sound
Sound signal is compared with the reference voice signal being obtained ahead of time, and judges whether the detected door lock is opened according to comparison result
It opens.
4. the equipment of detection door lock for vehicle according to claim 1, which is characterized in that
The controller, for sending locking action command to detected door lock.
The microphone module, for obtaining the voice signal of the detected door lock locking；
The controller, the voice signal sent for receiving the microphone module, according to the voice signal, by the sound
Sound signal is compared with the reference voice signal being obtained ahead of time, according to comparison result judge the detected door lock whether on
Lock.
5. the equipment of detection door lock for vehicle according to claim 1, which is characterized in that the microphone module is also used to
Be obtained ahead of time the door lock for vehicle it is not operating when background noise signal, and the background noise signal is sent to the control
Device；
The controller is also used to before being compared the voice signal with the reference voice signal being obtained ahead of time from institute
It states and subtracts the background noise signal in voice signal.
6. the equipment of detection door lock for vehicle according to claim 5, which is characterized in that the microphone module is obtained ahead of time
The background noise signal when door lock for vehicle is not operating, specifically:
The microphone module repeatedly obtain in advance the door lock for vehicle it is not operating when background noise signal, and will repeatedly obtain
Background noise signal be sent to the controller；
The background noise signal repeatedly obtained is averaged as final background noise signal by the controller；
The controller subtracts the background noise signal from the voice signal, specifically:
The controller subtracts the final background noise signal from the voice signal.
7. the equipment of detection door lock for vehicle according to claim 1, which is characterized in that the controller is each is detected
Unique ID is arranged in door lock；The controller sends the unlocking instruction by the ID of the detected door lock.
8. the equipment of detection door lock for vehicle according to claim 7, which is characterized in that when the controller judges the quilt
When detection door lock is not operating, the ID of the detected door lock is returned, and is shown on control screen in the car, so that user looks into
It sees.
9. the equipment of detection door lock for vehicle according to claim 1, which is characterized in that the controller is located at automobile or position
In remote server.
10. detection door lock for vehicle equipment according to claim 9, which is characterized in that the equipment further includes remote service
Device；
The controller is also used to the voice signal being sent to the remote server；
The remote server, for carrying out the variation song that analysis obtains voice signal to the voice signal by neural network
Line judges whether the door lock for vehicle is normal according to the change curve.
11. a kind of method for detecting door lock for vehicle, which is characterized in that the method is applied to described in any one of claim 1-10
Equipment, which comprises
The controller sends door lock action command to detected door lock；
The controller receives the voice signal that the microphone module is sent；The voice signal is by the microphone module
The voice signal obtained in detected door lock movement；
The voice signal is compared by the controller with the reference voice signal being obtained ahead of time, and is judged according to comparison result
Whether the detected door lock acts.
12. the method for detection door lock for vehicle according to claim 11, which is characterized in that the method also includes:
The controller sends the door lock action command to motor, and door lock movement is detected described in the motor driven；
The controller receives the operating current that current detection circuit is sent；The operating current is by the current detection circuit
Detect electric current when motor work；
The controller judge the operating current whether with the reference work currents match that is obtained ahead of time, if not, judging institute
State detected latch failure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810936041.XA CN109025557A (en) | 2018-08-16 | 2018-08-16 | A kind of device and method detecting door lock for vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810936041.XA CN109025557A (en) | 2018-08-16 | 2018-08-16 | A kind of device and method detecting door lock for vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN109025557A true CN109025557A (en) | 2018-12-18 |
Family
ID=64631683
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810936041.XA Pending CN109025557A (en) | 2018-08-16 | 2018-08-16 | A kind of device and method detecting door lock for vehicle |
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| CN111696224A (en) * | 2020-04-20 | 2020-09-22 | 深圳奥尼电子股份有限公司 | Automobile data recorder and intelligent security alarm method thereof |
| CN113833368A (en) * | 2020-06-08 | 2021-12-24 | 上海汽车集团股份有限公司 | System and method for detecting locking state of small refueling door of vehicle fuel tank |
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