CN103684773A - Secret lock device, portable terminal and audio unlocking method based on portable terminal - Google Patents
Secret lock device, portable terminal and audio unlocking method based on portable terminal Download PDFInfo
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- CN103684773A CN103684773A CN201210358399.1A CN201210358399A CN103684773A CN 103684773 A CN103684773 A CN 103684773A CN 201210358399 A CN201210358399 A CN 201210358399A CN 103684773 A CN103684773 A CN 103684773A
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Abstract
The invention discloses a secret lock device, a portable terminal and an audio unlocking method based on the portable terminal. The unlocking method comprises that: when the secret lock device needs to be unlocked via the portable terminal, an audio password arranged in the portable terminal is acquired; and the audio password is played to the secret lock device to unlock the password via a loudspeaker. The loudspeaker is adopted to play the audio password to unlock the password of the secret lock device. With a mode of adopting a hardware device to produce sound, audio characteristics are stable and not liable to change so that a technical problem of a high false identification rate of human voice in the prior art caused by changes of physical condition, age or emotions and the like can be effectively avoided, and the problem of high false identification rate caused by noise environment can also be avoided.
Description
Technical field
The present invention relates to audio frequency release technical field, specifically relate to a kind of portable terminal device and the audio frequency unlock method based on portable terminal device, also relate to a kind of close lock device.
Background technology
Along with the high speed development of the technology such as terminal equipment and Internet of Things, it brings very many facilities to people's live and work, such as personal digital assistant, automotive electronics, PC and Smart Home etc.Meanwhile, people are more and more stronger to the fail safe consciousness of personal information and individual terminal devices, and as first links of the safety systems such as information or terminal equipment, it is particularly important that the identification system of terminal equipment seems.
In prior art, the terminal equipments such as PC generally all adopt numeral or letter to carry out cryptoguard.Yet password is easy to be cracked or steal, once and lose, a large amount of personal information wherein is also accompanied by loss, and this will cause very large loss.
Although having quoted audio frequency password gradually, section terminating equipment carries out cryptoguard, as the sound characteristic based on user's opening sounding and semantic voice recognition technology, low capacity data transmission technology based on audio frequency and based on user voice identification and the sound groove recognition technology in e confirmed etc.Its concrete application is such as the siri voice system of apple, the ultrasonic wave payment technology of the U.S., also have as CMU and U.S.'s Bell Laboratory, develop jointly by sound groove recognition technology in e and the combination of password identification technology for the sound recognition system that is called as " sound coded lock " to computer or mobile phone cipher etc.
Yet there is obvious defect for the audio frequency cryptographic technique to terminal equipment, cause is that people's sound generally can be along with variations such as health, age or moods, and different microphones and channel also can exert an influence to the recognition performance of audio frequency password, particularly, under noise circumstance, thereby being difficult for extraction etc., people's vocal print feature cause misclassification rate high.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of close lock device, portable terminal device and the audio frequency unlock method based on portable terminal device, can effectively reduce the misclassification rate to audio frequency password.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of audio frequency unlock method based on portable terminal device is provided, this unlock method comprises: when needs carry out release by portable terminal device to close lock device, obtain the audio frequency password of being located in portable terminal device; By loud speaker, audio frequency password is played to close lock device to carry out unlock password.
Wherein, when needs carry out release by portable terminal device to close lock device, the step of obtaining the audio frequency password of being located in portable terminal device comprises: when needs carry out release by portable terminal device to close lock device, obtain identification code to be matched and the release identification code of portable terminal device; Identification code to be matched and release identification code are sent to close lock device; Obtain close lock device, according to pre-bound standard identification number, identification code to be matched is mated to returned matching result, and obtain the broadcasting frequency that close lock device calculates according to release identification code; Matching result for by time, obtain the audio frequency password of being located in portable terminal device.By loud speaker, audio frequency password being played to close lock device comprises to carry out the step of unlock password: by loud speaker, audio frequency password is loaded into broadcasting frequency and plays to close lock device to carry out unlock password.
Wherein, send to the step of close lock device to comprise identification code to be matched: identification code to be matched and release identification code are loaded into 20Hz(hertz) ~ 20KHz(KHz) frequency and by loud speaker, play to close lock device.By loud speaker, audio frequency password is loaded into and plays frequency and play to close lock device and comprise to carry out the step of unlock password: audio frequency password is loaded into and is greater than the broadcasting frequency of 20KHz and plays to close lock device to carry out unlock password by loud speaker.
Wherein, audio frequency password and/or identification code to be matched effective decipherment distance when playing is less than 12cm(centimetre).
Wherein, release identification code generates at random via portable terminal device.
For solving the problems of the technologies described above, another technical solution used in the present invention is: a kind of portable terminal device is provided, and portable terminal device comprises acquisition module and loud speaker.Acquisition module, for when needs carry out release to close lock device, obtains the audio frequency password of being located in portable terminal device; Loud speaker plays to close lock device to carry out unlock password for the audio frequency password that acquisition module is got.
Wherein, acquisition module comprises the first acquiring unit and second acquisition unit, and portable terminal device also comprises microphone.The first acquiring unit, for when needs carry out release to close lock device, obtains identification code to be matched and the release identification code of portable terminal device, and by loud speaker, identification code to be matched is sent to close lock device; Microphone mates returned matching result according to pre-bound standard identification number to identification code to be matched for obtaining close lock device, and obtains the broadcasting frequency that close lock device calculates according to release identification code; Second acquisition unit for matching result for by time, obtain the audio frequency password of being located in portable terminal device, audio frequency password is loaded into and plays frequency and play to close lock device by loud speaker.
Wherein, the frequency that loud speaker is loaded into 20Hz ~ 20KHz by identification code to be matched plays to close lock device; Loud speaker is loaded into by audio frequency password and release identification code the ultrasonic wave that is greater than 20KHz and plays frequency and play to close lock device.
Effective decipherment distance when wherein, loud speaker is play is less than 12cm.
Wherein, portable terminal device also comprises password generation module, and password generation module is for the random release identification code that generates.
For solving the problems of the technologies described above, another technical scheme that the present invention adopts is: a kind of close lock device is provided, and close lock device comprises the first receiver module, judge module reconciliation lock module.The first receiver module is used for when needs carry out release by portable terminal device, the audio frequency password that the loud speaker of reception portable terminal device is play; Whether judge module is correct for judging the audio frequency password that the first receiver module receives; Separate lock module and when audio frequency password is correct, carry out unlock password for determining at judge module.
Wherein, close lock device also comprises the second receiver module, read module, processing module and sending module.The second receiver module, for when needs carry out release by portable terminal device, receives identification code to be matched and release identification code that portable terminal device sends over; Read module is for obtaining the standard identification number being bound in advance in close lock device; Processing module is for according to standard identification number, identification code to be matched being mated, and frequency is play in calculating according to release identification code; Sending module is loaded into broadcasting frequency and sends to portable terminal device for processing module is processed to the matching result obtaining.
Wherein, the first receiver module and the second receiver module are microphone, and sending module is loud speaker and matching result is loaded into the broadcasting frequency that is greater than 20KHz plays to portable terminal device, and effective decipherment distance when loud speaker is play is less than 12cm.
The invention has the beneficial effects as follows: the situation that is different from prior art, the present invention adopts loud speaker rather than user's sounding to come audio plays password so that close lock device is carried out to unlock password, owing to adopting the mode of hardware device pronunciation, its audio frequency characteristics is stablized and can easily not changed, therefore can effectively avoid the sound due to user in prior art to bring the higher technical problem of misclassification rate, the higher problem of misclassification rate that also can avoid noise circumstance to bring along with health, age or mood etc. change.
Accompanying drawing explanation
Fig. 1 is the flow chart that the present invention is based on audio frequency unlock method one execution mode of portable terminal device;
Fig. 2 is the flow chart that the present invention is based on another execution mode of audio frequency unlock method of portable terminal device;
Fig. 3 is the module connection diagram of portable terminal device one execution mode of the present invention;
Fig. 4 is the structural representation of the audio frequency sending module of portable terminal device shown in Fig. 3;
Fig. 5 is the structural representation of the audio frequency receiver module of portable terminal device shown in Fig. 3;
Fig. 6 is the module connection diagram of close lock device one execution mode of the present invention;
Fig. 7 is the structural representation of the transmission processing module of close lock device shown in Fig. 6;
Fig. 8 is the structural representation of the receiving processing module of close lock device shown in Fig. 6; And
Fig. 9 carries out the workflow schematic diagram of audio frequency release one execution mode between portable terminal device of the present invention and close lock device.
Embodiment
Referring to Fig. 1, is the flow chart that the present invention is based on audio frequency unlock method one execution mode of portable terminal device, and in the present embodiment, unlock method includes but not limited to following steps.
Step S100: when needs carry out release by portable terminal device to close lock device, obtain the audio frequency password of being located in portable terminal device.
In step S100, portable terminal device can possess the terminal of simple operations function and executive software operation function for mobile phone, panel computer or personal digital assistant etc., and the request of its release can initiatively be initiated by portable terminal device; And audio frequency password can, by setting in advance, generate at random or being obtained by modes such as the manual inputs of user, within the art personnel hold intelligible scope, be not construed as limiting.It should be noted that in addition, close lock device can be mobile phone, panel computer, personal digital assistant, automobile door lock, electronic lock or safety cabinet etc., and therefore not to repeat here.
Step S101: audio frequency password is played to close lock device to carry out unlock password by loud speaker.
It should be noted that: step S101 adopts the mode of loud speaker audio plays password, for identical audio frequency password, carry out the audio frequency characteristics that the process of unlock password plays at every turn and can be set to not occur larger difference, the mode of carrying out release than the face pronunciation by user, the misclassification rate to audio frequency password can be effectively reduced, also the interference effect that noise circumstance is brought can be effectively reduced.For example, user by audio frequency password " ypjs001 " in advance by record or manually input be saved in portable terminal device, during release, first get " ypjs001 ", after the processing procedures such as ovennodulation, digital-to-analogue conversion, by loud speaker, play to close lock device again, and close lock device receives after " ypjs001 ", after the processing procedures such as demodulation, analog-to-digital conversion, carry out identification decoding again; Certainly, during release, can also obtain the audio frequency password " ypjs001 " of the instant input of user, after the processing procedures such as ovennodulation, digital-to-analogue conversion, by loud speaker, play to close lock device again, and close lock device receives after " ypjs001 ", after the processing procedures such as demodulation, analog-to-digital conversion, carry out identification and decoding etc. again.Its concrete processing procedure, because belonging to prior art, in the scope of understanding, does not repeat the art personnel.
Present embodiment is due to the mode that adopts loud speaker as hardware device pronunciation, its audio frequency characteristics is stablized and can easily not changed, therefore can effectively avoid the sound due to people in prior art to bring the higher technical problem of misclassification rate, the higher problem of misclassification rate that also can avoid noise circumstance to bring along with health, age or mood etc. change.
Referring to Fig. 2, is the flow chart that the present invention is based on another execution mode of audio frequency unlock method of portable terminal device, and in the present embodiment, unlock method includes but not limited to following steps.
Step S200: when needs carry out release by portable terminal device to close lock device, obtain identification code to be matched and the release identification code of portable terminal device.
Be with last execution mode difference, first step S200 need to obtain identification code to be matched and the release identification code of portable terminal device.Particularly, identification code to be matched can be the unique number of portable terminal device, such as No. IMIE (sequence number) of mobile phone or other character strings that possesses recognition function etc. certainly, can be also autonomous other ordinary symbol strings bound mutually with close lock device that set of user; And before release action, the process that generally need to bind in advance, be that portable terminal device plays to close lock device by loud speaker by identification code to be matched and/or audio frequency password, close lock device stored and identification code to be matched as the follow-up standard identification number mating in when binding.In addition, release identification code is follow-up needed other character strings of calculating action, and it can generate and be preferably disposable effective at random by portable terminal device, and certainly, also can limit according to actual needs its effective time, and therefore not to repeat here.
Step S201: identification code to be matched and release identification code are sent to close lock device.
In step S201, portable terminal device can and be loaded into predetermined frequency by identification code to be matched and release identification code by loud speaker and send to close lock device again, such as the frequency (20Hz ~ 20KHz) that can be loaded into people's ear and can identify, also can fluctuate at 20Hz ~ 20KHz, as be greater than ultrasonic frequency of 20KHz etc., in this no limit.
Step S202: obtain close lock device, according to pre-bound standard identification number, identification code to be matched is mated to returned matching result, and obtain the broadcasting frequency that close lock device calculates according to release identification code.
As previously mentioned, in step S202, obtain the matching result returning after close lock device mates according to standard identification number and the broadcasting frequency calculating according to release identification code simultaneously.At this, it should be noted that; in order further to protect personal information etc.; close lock device possesses certain processing computing capability; it can calculate this broadcasting frequency by specific algorithm according to release identification code; and frequency when this broadcasting frequency and portable terminal device are play identification code to be matched and release identification code is different, in the process of release, stolen etc. effectively preventing.Such as, it is 20Hz ~ 20KHz that identification code to be matched and release identification code are loaded into predetermined frequency, playing frequency can be for being greater than the ultrasonic frequency of 20KHz, the stolen risk that can effectively avoid using the technology of identical frequency to bring by this frequency hopping (frequency playing sound is different) at every turn.
Step S203: matching result for by time, obtain the audio frequency password of being located in portable terminal device.
In step S203, audio frequency password can, by setting in advance, generate at random or being obtained by modes such as the manual inputs of user, be not construed as limiting.Certainly, at matching result, be obstructed out-of-date, can again send identification code to be matched and release identification code by reminding user, thus the impact that can avoid some disturbing factors to bring, also can send certain warning reminding signal by close lock device, therefore not to repeat here.
Step S204: by loud speaker, audio frequency password is loaded into broadcasting frequency and plays to close lock device to carry out unlock password.
From step, S204 is not difficult to find out, in order effectively to prevent that audio frequency password is stolen, the frequency of twice audio frequency that in present embodiment, the loud speaker of portable terminal device is play is different, as previously mentioned, broadcasting frequency when the frequency while playing identification code to be matched and release identification code is 20Hz ~ 20KHz and audio plays password is that the broadcast mode that is greater than this kind of change frequency of 20KHz(is frequency hopping), furthermore, audio frequency password can be loaded into hyperacoustic broadcasting frequency, can avoid other people to hear audio frequency password etc.Certainly, if audio frequency password mistake can be inputted by reminding user again, thereby the impact that can avoid some disturbing factors to bring, also can send certain warning reminding signal etc. by close lock device, it can be set according to actual needs, in this no limit.
It should be noted that, audio frequency password, release identification code and/or identification code to be matched effective decipherment distance when playing can be less than 12cm, within can remaining on 10cm scope furthermore, such as passing through configuration audio plays password, broadcasting energy when release identification code and/or identification code to be matched is controlled the concrete size of effective decipherment distance, and the broadcasting energy error value suitable according to environment configurations such as noises, thereby while being limited to unlock password, portable terminal device is positioned at this effective decipherment distance to the distance between close lock device, effectively prevent from being ravesdropping etc.
Present embodiment is by the mode of binding portable terminal device and close lock device, and adopt loud speaker in effective decipherment distance of appointment audio plays password so that close lock device is carried out to unlock password, not only can effectively avoid the higher technical problem of misclassification rate, and the mode of identification code to be matched is bound in employing in advance, and after identification code to be matched is by coupling, just can carry out audio frequency unlock password (hereinafter referred is " double verification "), therefore can effectively prevent that the audio frequency password that other users steal by the portable terminal device utilization of not binding from carrying out release.In addition, adopt frequency hopping, also can prevent that audio frequency password or identification code to be matched are ravesdropping, thereby further protect the fail safe of personal information or terminal equipment.
Refer to Fig. 3 to Fig. 5, Fig. 3 is the module connection diagram of portable terminal device one execution mode of the present invention, and Fig. 4 is the structural representation of the audio frequency sending module of portable terminal device shown in Fig. 3, and Fig. 5 is the structural representation of the audio frequency receiver module of portable terminal device shown in Fig. 3.
In the present embodiment, portable terminal device includes but not limited to acquisition module 30, loud speaker 31 and microphone 32.
Portable terminal device also comprises processing unit 33 and password generation module 34.
In other embodiments, portable terminal device can also arrange visual screen, by visual screen, user's input interface can be set and for user, initiatively initiate the request of release, can also be used to point out user to input audio frequency password or prompting user input error etc., in the scope of understanding the art personnel, do not repeat.
In addition, the specific works process of present embodiment portable terminal device also refers to the associated description of execution mode above, in the art personnel scope that easily combination is understood, repeats no more.
Present embodiment is by the mode of binding portable terminal device and close lock device, and adopt loud speaker 31 in effective decipherment distance of appointment audio plays password so that close lock device is carried out to unlock password, not only can effectively avoid the higher technical problem of misclassification rate, and the mode of employing double verification, can effectively prevent that the audio frequency password that other users steal by the portable terminal device utilization of not binding from carrying out release.In addition, adopt frequency hopping, also can prevent that audio frequency password or identification code to be matched are ravesdropping, thereby further protect the fail safe of personal information or terminal equipment.
Refer to Fig. 6 to Fig. 8, Fig. 6 is the module connection diagram of close lock device one execution mode of the present invention, and Fig. 7 is the structural representation of the transmission processing module of close lock device shown in Fig. 6, and Fig. 8 is the structural representation of the receiving processing module of close lock device shown in Fig. 6.
In the present embodiment, provide a kind of close lock device, it includes but not limited to microphone 40, judge module 41 reconciliation lock modules 42.
Wherein, for ease of describing, microphone 40 specifically comprises the first receiver module 401 and the second receiver module 402.In the concrete course of work, the first receiver module 401 is for when needs carry out release by aforesaid portable terminal device, receives the audio frequency password that the loud speaker of portable terminal device is play; Then by judge module 41, judge that whether the audio frequency password that the first receiver module 401 receives is correct; Finally separating lock module 42 determines and when audio frequency password is correct, carries out unlock password at judge module 41.Be not difficult to find out, close lock device is when audio reception password carries out release, adopt the example, in hardware of loud speaker to carry out audio plays password, its audio frequency characteristics is stablized and can easily not changed, therefore can effectively avoid the sound due to people in prior art to bring the higher technical problem of misclassification rate, the higher problem of misclassification rate that also can avoid noise circumstance to bring along with health, age or mood etc. change.In addition, it should be noted that, the receiving course essence of the first receiver module 401 and/or the second receiver module 402 can be for detecting the process of voice signal in real time, in order to reduce power loss, also can only in the time that release need to be carried out, detect the process of voice signal, this voice signal is specifically as follows audio frequency password or other noise noises etc., and the concrete processing procedure detecting after voice signal will be explained hereinafter, in the scope of understanding the art personnel, wouldn't carefully state.
It should be noted that, the close lock device of present embodiment also comprises read module 43, processing module 44 and sending module 45, its course of work comprises: the second receiver module 402, when needs carry out release by portable terminal device, receives identification code to be matched and release identification code that portable terminal device sends over; Read module 43 obtains the standard identification number being bound in advance in close lock device; Processing module 44 is for according to standard identification number, identification code to be matched being mated, and frequency is play in calculating according to release identification code; Sending module 45 is processed by processing module 44 matching result obtaining and is loaded into broadcasting frequency and sends to portable terminal device.As previously mentioned, the first receiver module 401 and the second receiver module 402 are microphone 40, and sending module 45 is for loud speaker and matching result is loaded into the broadcasting frequency that is greater than 20KHz plays to portable terminal device.Sending module 45 is before broadcasting, the processing that generally need to be undertaken between analog signal and digital signal by transmission processing module 450 is moved, as shown in Figure 7, transmission processing module 450 includes but not limited to the encoder 4500, modulator 4501, filter 4502, D/A change-over circuit (D/A converting circuit) 4503 and the power amplifier 4504 that sequentially connect.The input supplied with digital signal of encoder 4500 (matching result of the present invention and/or broadcasting frequency), the output of encoder 4500 is connected with the input of modulator 4501, the output of modulator 4501 is connected with the input of filter 4502, the output of filter 4502 is connected with the input of D/A change-over circuit 4503, the output of D/A change-over circuit 4503 is connected with the input of power amplifier 4504, the output of power amplifier 4504 is connected with the input of sending module 45, finally the signal that plays sound of the output by sending module 45.The course of work of transmission processing module 450 comprises: with the encoding digital signals of 4500 pairs of needs transmission of encoder, with modulator 4501, the digital signal modulated after coding is become to the digital signal that sound frequency is corresponding, with filter 4502 by filtering clutter, D/A change-over circuit 4503 converts the digital signal after modulation to speech simulation signal, power amplifier 4504 carries out power amplification by speech simulation signal, and last sending module 45 is converted into voice signal by the analog signal after amplifying and plays.In addition, it should be noted that, effective decipherment distance when sending module 45 is play can be less than 12cm, be not difficult to find out, herein can be by configuration power amplifier 4504 the broadcasting energy when audio plays password, release identification code and/or the identification code to be matched control the concrete size of effective decipherment distance, such as adjusting its multiplication factor etc., in addition, broadcasting energy error value that can also be suitable according to environment configurations such as noises, thus while being limited to unlock password, portable terminal device is positioned at this effective decipherment distance to the distance between close lock device.Particularly, in the process of signal that plays sound, the broadcasting energy of the sound wave in voice signal is from sending module 45(loud speaker) propagate outward, and according to certain rule decay, simultaneously owing to being subject to the humidity of air, the impact of the factors such as noise and restriction, if so also need to additionally increase the coefficient of error amount on the broadcasting energy foundation of configuration when effective decipherment distance of setting is 12cm, the effective decipherment distance of theory while playing need be greater than 12cm, as 14cm etc., certainly, it is in confirmable scope that the size of its concrete error amount of setting can adopt conventionally calculation the art personnel, in this no limit.
Corresponding with sending module 45 is, microphone 40 is after receiving voice signal, it generally need to be processed, present embodiment is processed by receiving processing module 400 is set, particularly, receiving processing module 400 includes but not limited to A/D change-over circuit (analog to digital conversion circuit) 4000, band pass filter 4001, demodulator 4002, low pass filter 4003 and decoder 4004 etc.The output of microphone 40 is connected with the input of A/D change-over circuit 4000, the output of A/D change-over circuit 4000 is connected with the input of band pass filter 4001, the output of band pass filter 4001 is connected with the input of demodulator 4002, the output of demodulator 4002 is connected with the input of low pass filter 4003, the output of low pass filter 4003 is connected with decoder 4004 inputs, and the output output digit signals of decoder 4004 is to carry out subsequent action.The course of work of audio frequency receiver module 400 comprises: microphone 40 receives voice signal and is converted into speech simulation signal, A/D change-over circuit 4000 is converted to corresponding digital signal by speech simulation signal, band pass filter 4001 filtering clutters, by 4002 pairs of digital signals of demodulator, carry out demodulation, and by forming the not digital signal of decoding after low pass filter 4003 filtering, finally by 4004 pairs of digital signals of decoder, decode and obtain original digital signal.Wherein, in the scope that this voice signal and digital signal are understood the art personnel, only its operation principle is introduced herein, is not construed as limiting.In addition, for the effective decipherment distance that further guarantees that above-mentioned sending module 45 is play, at microphone 40 places, can also extra increase apart from induction module (not shown) etc., in the time need to carrying out release when portable terminal device being detected apart from induction module and be less than effective decipherment distance to the distance between close lock device, open microphone 40 with audio reception password etc., when portable terminal device being detected and be greater than effective decipherment distance to the distance between close lock device mute microphone (MIC) 40 to stop audio reception password etc., thereby can effectively realize in-plant unlocking operation, and in the scope of understanding the art personnel apart from the correlation technique of induction module, therefore not to repeat here.
With the function of the processing unit 33 of execution mode above similar be, control unit 46 is for providing the interface with other soft and hardwares part of close lock device, and for controlling the relevant parameter (as play energy and multiplication factor) of the parts such as sending module 45 and transmission processing module 450 thereof and microphone 40 and receiving processing module 400 thereof, also can send instruction simultaneously and control other hardware composition parts (as opened or mute microphone (MIC) 40).In addition, it should be noted that, when close lock device is notebook computer etc. while having the terminal of autonomous input function, this audio frequency password can be set by close lock device.
The mode that the close lock device of present embodiment carries out release by receiving the audio frequency password of loud speaker broadcasting, not only can effectively avoid the higher technical problem of misclassification rate of bringing due to the mode that adopts people's sounding to carry out release, and the mode of identification code to be matched is bound in further employing in advance, and after identification code to be matched is by coupling, just can carry out audio frequency unlock password, therefore can also effectively prevent that the audio frequency password that other users steal by the portable terminal device utilization of not binding from carrying out release.In addition, adopt frequency hopping, also can prevent that audio frequency password or identification code to be matched are ravesdropping, thereby further protect the fail safe of personal information or terminal equipment.
Referring to Fig. 9, is between portable terminal device of the present invention and close lock device, to carry out the workflow schematic diagram of audio frequency release one execution mode.
The portable terminal device 50 that present embodiment is related and the specific works flow process of close lock device 60 comprise:
Portable terminal device 50 local terminals obtain identification code to be matched and release identification code, and by frequency F1, identification code to be matched and release identification code are played to close lock device 60 with the form of loud speaker;
Portable terminal device 50 at matching result when passing through, obtain audio frequency password and be loaded into and play frequency F2 to play to close lock device 60 by loud speaker, it can be particularly the mode of the manual input of user, and at matching result when not passing through, re-start coupling or send warning etc., in this no limit;
As previously mentioned, in releasing process, the distance between portable terminal device 50 and close lock device 60 is not more than 12cm, preferably remains in 10cm, and frequency F1 can be 20Hz ~ 20KHz, plays frequency F2 and can be greater than 20KHz to realize frequency hopping.In addition, release identification code can be by the random generation of portable terminal device 50 disposable effective, to calculate different broadcasting frequency F2 by close lock device 60.
The part technical characterictic of present embodiment portable terminal device 50 and close lock device 60 also refers to the associated description of execution mode above, in the art personnel scope that easily combination is understood, repeats no more.
Present embodiment is by the mode of binding portable terminal device 50 and close lock device 60, and adopt loud speaker in effective decipherment distance of appointment audio plays password so that close lock device 60 is carried out to unlock password, not only can effectively avoid the higher technical problem of misclassification rate, and adopt the double verification mode of binding in advance, can effectively prevent that the audio frequency password that other users steal by the portable terminal device utilization of not binding from carrying out release.In addition, adopt frequency hopping, also can prevent that audio frequency password or identification code to be matched are ravesdropping, thereby further protect the fail safe of personal information or terminal equipment.
The foregoing is only embodiments of the present invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes specification of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (13)
1. the audio frequency unlock method based on portable terminal device, is characterized in that, described unlock method comprises:
When needs carry out release by described portable terminal device to close lock device, obtain the audio frequency password of being located in described portable terminal device;
By loud speaker, described audio frequency password is played to described close lock device to carry out unlock password.
2. unlock method according to claim 1, is characterized in that:
Described when needs carry out release by described portable terminal device to close lock device, the step of obtaining the audio frequency password of being located in described portable terminal device comprises:
When needs carry out release by described portable terminal device to close lock device, obtain identification code to be matched and the release identification code of described portable terminal device;
Described identification code to be matched and release identification code are sent to described close lock device;
Obtain described close lock device, according to pre-bound standard identification number, described identification code to be matched is mated to returned matching result, and obtain the broadcasting frequency that described close lock device calculates according to described release identification code;
Described matching result for by time, obtain the audio frequency password of being located in described portable terminal device;
Describedly by loud speaker, described audio frequency password is played to described close lock device and comprises to carry out the step of unlock password:
By loud speaker, described audio frequency password is loaded into described broadcasting frequency and plays to described close lock device to carry out unlock password.
3. unlock method according to claim 2, is characterized in that:
Describedly send to the step of described close lock device to comprise identification code to be matched:
Described identification code to be matched and release identification code are loaded into the frequency of 20Hz ~ 20KHz and play to described close lock device by loud speaker;
Describedly by loud speaker, described audio frequency password is loaded into described broadcasting frequency and plays to described close lock device and comprise to carry out the step of unlock password:
Described audio frequency password is loaded into and is greater than the described broadcasting frequency of 20KHz and plays to described close lock device to carry out unlock password by loud speaker.
4. unlock method according to claim 3, is characterized in that, described audio frequency password and/or described identification code to be matched effective decipherment distance when playing is less than 12cm.
5. according to the unlock method described in claim 2 or 3, it is characterized in that: described release identification code generates at random via described portable terminal device.
6. a portable terminal device, is characterized in that, described portable terminal device comprises:
Acquisition module, for when needs carry out release to close lock device, obtains the audio frequency password of being located in described portable terminal device;
Loud speaker, plays to described close lock device to carry out unlock password for the described audio frequency password that described acquisition module is got.
7. portable terminal device according to claim 6, is characterized in that, described acquisition module comprises the first acquiring unit and second acquisition unit, and described portable terminal device also comprises microphone:
Described the first acquiring unit, for when needs carry out release to close lock device, obtains identification code to be matched and the release identification code of described portable terminal device, and by described loud speaker, described identification code to be matched is sent to described close lock device;
Described microphone, mates returned matching result according to pre-bound standard identification number to described identification code to be matched for obtaining described close lock device, and obtains the broadcasting frequency that described close lock device calculates according to described release identification code;
Described second acquisition unit, for described matching result for by time, obtain the audio frequency password of being located in described portable terminal device, described audio frequency password is loaded into described broadcasting frequency by described loud speaker, play to described close lock device.
8. portable terminal device according to claim 7, is characterized in that, the frequency that described loud speaker is loaded into 20Hz ~ 20KHz by described identification code to be matched and release identification code plays to described close lock device; Described loud speaker is loaded into by described audio frequency password the ultrasonic wave that is greater than 20KHz and plays frequency and play to described close lock device.
9. according to the portable terminal device described in claim 6-8 any one, it is characterized in that, effective decipherment distance when described loud speaker is play is less than 12cm.
10. according to the portable terminal device described in claim 7 or 8, it is characterized in that, described portable terminal device also comprises:
Password generation module, for the random release identification code that generates.
11. 1 kinds of close lock devices, is characterized in that, described close lock device comprises:
The first receiver module, for when needs carry out release by portable terminal device, receives the audio frequency password that the loud speaker of described portable terminal device is play;
Judge module, whether correct for judging the described audio frequency password that described the first receiver module receives;
Separate lock module, for determining at described judge module, when described audio frequency password is correct, carry out unlock password.
12. close lock devices according to claim 11, is characterized in that, described close lock device also comprises:
The second receiver module, for when needs carry out release by portable terminal device, receives identification code to be matched and release identification code that described portable terminal device sends over;
Read module, for obtaining the standard identification number being bound in advance in described close lock device;
Processing module, for according to described standard identification number, described identification code to be matched being mated, and calculates and plays frequency according to described release identification code;
Sending module, is loaded into described broadcasting frequency and sends to described portable terminal device for described processing module is processed to the matching result obtaining.
13. close lock devices according to claim 12, it is characterized in that, described the first receiver module and described the second receiver module are microphone, described sending module is loud speaker and described matching result is loaded into the broadcasting frequency that is greater than 20KHz plays to described portable terminal device, effective decipherment distance when wherein, described loud speaker is play is less than 12cm.
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