CN106059682A - Mobile internet near-field identification system - Google Patents
Mobile internet near-field identification system Download PDFInfo
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- CN106059682A CN106059682A CN201610634121.0A CN201610634121A CN106059682A CN 106059682 A CN106059682 A CN 106059682A CN 201610634121 A CN201610634121 A CN 201610634121A CN 106059682 A CN106059682 A CN 106059682A
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- mobile phone
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B11/00—Transmission systems employing sonic, ultrasonic or infrasonic waves
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
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Abstract
The invention discloses a mobile internet near-field identification system, and relates to the technical field of identification devices. The identification system comprises a sound near-field identification device, a smart phone and a server, wherein the sound near-field identification device is used for receiving a signal sent by the smart phone or the server and sending a sound wave signal according to the received signal, the sound near-field identification device is connected with the phone in a wired or wireless mode, and the phone exchanges data with the server via a wireless network. The identification system is high in timeliness, good in confidentiality, easy to use and good in client experience.
Description
Technical field
The present invention relates to identity recognition device technical field, particularly relate to a kind of nearly field identification system of mobile Internet.
Background technology
The systems such as location in the market, night watching, work attendance, gate inhibition are nearly all to use Non-contact radio-frequency near field to identify skill
Art, i.e. RFID(Radio Frequency Identification) technology.This technology uses electromagnetic field wireless communication principles,
Typically have a card reader (patrolling stick of example patrol system) and localizer (the ID button of such as patrol system, ID card).Read
By close distance radio frequency radio communication between card device and localizer, the parameter such as the unique number information of transmission localizer completes body
Part identification, location recognition, work attendance and task certification identification etc..This kind of location, identification technology can be also used for equipment repair and maintenance
Cruising inspection system, such as elevator, fork truck, the periodic maintenance of boats and ships are safeguarded, are patrolled and examined.
As a example by elevator repair and maintenance, can install a localizer with unique ID number in elevator, repair and maintenance person arrives elevator
Obtain information with hand-held card reader special near localizer during repair and maintenance, complete its work certification work attendance to hilllock.Card reader special
Background information center can be uploaded to after going back to office with offline storage data.Can also configure mobile logical in card reader special
Letter module, by 3G, 4G network insertion background information center, uploads data in real time.
Electronic tag is exactly a passive RF ID button, is fixed on elevator inwall.Repair and maintenance work puts in place, needs hand-held one
RF ID card reader positions, and i.e. RF ID button is carried out identification.Therefore, sky, the Jiangsu benefit network information is above chatted limited
This set elevator repair and maintenance job information plateform system of company needs the repair and maintenance work for each operation of going out to configure a special Card Reader
Device.Also have a kind of repair and maintenance alignment system using smart mobile phone on the market, be to use cellphone GPS signal as basis on location.
Obviously, this technology is not suitable for being pin-pointed to certain group elevator, and is difficult to position in indoor.
Being similar to, the Elevator maintenance system of other company the most existing is all similar with said system, has and retouches below
The drawback stated so that the informationization of elevator repair and maintenance, with no paper work is difficult to popularize.
One special card-reading apparatus of above-mentioned system fundamental need, for gate inhibition, this application of work attendance, card reader
Fixing, movement is light ID/IC card, cheap, and easy to carry, user will not produce poor experience, the most not
Cost can be rolled up.But for systems such as night watching, equipment repair and maintenance, fixing is active or passive ID/IC card, Yong Huxu
Carrying active more heavy special hand-held card reader, experience is the most poor.Furthermore, handheld reader is if desired
Uploading data, mobile network's module to be equipped with and SIM in real time, equipment cost strengthens and SIM can produce monthly rent, set meal
The extraneous expense such as take.
It is clear that above-mentioned hand-held card reader special, smart mobile phone and supporting corresponding APP(intelligence can be used completely
Energy mobile phone application software, lower same) replace.Typically there is following several form: using the mobile phone supporting NFC, localizer is also adopted by NFC
The equipment of type；Localizer is WIFI equipment or bluetooth equipment, user arrive appointment position use mobile phone WIFI or
Person's Bluetooth function connecting positioner obtains information.In turn, if gate control system, it is also possible to mobile phone as " card " be similar to active
RF ID/IC card, identity information and cell-phone number or logon account one_to_one corresponding, i.e. electronic label function, connect during use and receive
Device (fixing card reader), opens or controls some equipment and complete gate function.
Owing to smart mobile phone is day by day popularized, the most staff one, machine, not from body, therefore uses smart mobile phone conduct
The systems such as the location based on development of Mobile Internet technology of " card reader ", " electronic tag ", night watching, identification, gate inhibition will certainly be progressively
Replace using card reader special, the legacy system of electronic tag, have the biggest market prospect, several employings listed above
Smart mobile phone as the scheme of identification apparatus, either NFC, WIFI, bluetooth localizer etc. be all based on wireless radiofrequency lead to
Letter technology, needs mobile phone to have supporting radio-frequency unit, has a following drawback:
(1) if system uses WIFI or Bluetooth technology, then mobile phone A PP also needs to carry out the matching process of several operating procedure,
Comparatively laborious.
(2) WIFI and bluetooth are closely, such as in the range of 10 meters, difference two or more the service of connection devices (localizer or
Receptor) time technology realization rate more complicated, Consumer's Experience extreme difference.
(3) according to NFC mode, then needing to force supporting mobile phone to need all and possess NFC function, its versatility is the most not
Good, substantial amounts of low and middle-end mobile phone is not equipped with.Even if being equipped with the mobile phone of NFC function, it is also desirable to user arranges on mobile phone and beats
Open this function.
3 drawbacks chatted on Xian Ran are that smart mobile phone substitutes special " card reader ", the technology barrier of " electronic tag ", are to lead
Cause the true cause that this application fails to popularize.And the present invention it is emphasised that: use smart mobile phone replace " card reader ", " electronics
Label " premise should be not change the existing smart mobile phone of client, only need to download certain APP and any smart mobile phone can be made to have
" card reader ", " electronic tag " function, it is achieved closely noncontact interconnection identifies；Need not mobile phone and have NFC, WIFI or indigo plant
Tooth function, user is in use without being configured NFC, WIFI of mobile phone or Bluetooth function, and enters with associated components
Row coupling.
It addition, use mobile phone to control system as intelligent domestic system, the multi-media classroom central authorities of controller in the market
System, meeting room central control system etc., be desirable that and to configure the reception equipment of employing WIFI or Bluetooth technology (hereinafter referred to as
" radio frequency receiver "), utilize mobile phone A PP to realize controlling function, mobile phone is similar to a wireless mobile control panel.At Smart Home
In system, radio frequency receiver one family only need to install one, and user mobile phone only can mate the radio frequency receiver of an own home, so that it may
With life-time service.For school's multi-media classroom central control system (hereinafter referred to as: middle control), also it is according to above-mentioned principle hands
Machine is used as mobile control panel and controls the educational technology equipment in classroom.But unlike the Smart Home of domestic, a religion
Learning classroom very high density in building, the teacher that teaches is often frequently at tens classroom rotation siteworks.If attending class, teacher wants to use hands
Machine draws oneself up the equipment in classroom, place, needs to specify certain classroom radio frequency reception by WIFI or bluetooth discovery function locking
Device.The most loaded down with trivial details in this work of teaching building of classroom very high density, careless slightly attach to the next classroom radio frequency reception
Device, its consequence directly results in teaching accident.Therefore WIFI or Bluetooth technology is used to carry out the multimedia religion of educational technology equipment control
Room central control system is the most universal, is extremely difficult to promote.
Summary of the invention
The technical problem to be solved is to provide a kind of nearly field identification system of mobile Internet, described identification system
Real-time height, good confidentiality, easy of use and customer experience good.
For solving above-mentioned technical problem, the technical solution used in the present invention is: a kind of mobile Internet near field identifies system
System, it is characterised in that: including that sound near field identifies device, smart mobile phone and server, described sound near field identifies that device is used for
Receiving signal that smart mobile phone or server send and send acoustic signals according to the signal received, sound near field identifies that device leads to
Crossing wired or wireless mode to be attached with described mobile phone, described mobile phone carries out data by wireless network and described server
Alternately.
Further technical scheme is: described sound near field identifies that device includes acoustic sensor and amplifying circuit, sound
Frequently signal shaping and process circuit, processor and memorizer, audio signal occur and filter circuit and acoustic transducer and drive
Galvanic electricity road, described acoustic sensor and amplifying circuit are connected with the input of described audio signal shaping and process circuit, are used for
The acoustical signal that pickup smart mobile phone sends；The outfan of described audio signal shaping and process circuit and the letter of described processor
Number input connects, for processing acoustical signal；Described memorizer is connected with described processor, relevant for storing
Data and program；Described audio signal occurs and filter circuit is connected with the signal output part of described processor, for process
The signal of device output is changed and is filtered；Described audio signal occurs and the signal output part of filter circuit turns with described electroacoustic
The signal input part of parallel operation and drive circuit thereof connects, and electroacoustic transducer and drive circuit thereof are used for converting the electrical signal to accordingly
Audio signal and launch in the form of a sound wave；
Smart mobile phone sends specific sonic initiating signals Sn, and sound near field identifies that device receives complete sonic initiating signals
Sn, sends self unique reference number IDn the most in the form of a sound wave to smart mobile phone, and smart mobile phone uploads described IDn to server, clothes
Business device produces dynamic code Vni according to described IDn, and smart mobile phone obtains described dynamic code Vni and it sent in the form of a sound wave
To described sound near field identify device, sound near field identify device according to dynamic code Vni passback encrypted code Ani to smart mobile phone,
Smart mobile phone uploads encrypted code Ani to server, and server judges the legitimacy of encrypted code Ani, if legal, then use described from
Body unique reference number IDn, if not conforming to rule do not use self unique reference number IDn described.
Further technical scheme is: described audio signal shaping and process circuit are FSK modulation circuit, described audio frequency
Signal occurs and filter circuit is Fsk demodulator.
Further technical scheme is: described audio signal shaping and process circuit are DTMF modulation circuit, described sound
Frequently signal occurs and filter circuit is DTMF demodulator circuit.
Further technical scheme is: described audio signal shaping and process circuit are that A/D changes direct sample circuit,
Using soft-modulation, described audio signal occurs and filter circuit is that D/A changes direct sample circuit, uses software demodulation.
Further technical scheme is: described sound near field identify device include mixed-media network modules mixed-media, processor, memorizer,
Audio signal occurs and filter circuit and electroacoustic transducer and drive circuit, described mixed-media network modules mixed-media and the two-way company of described processor
Connect, carry out data interaction for realization and server；Described memorizer is bi-directionally connected with described processor, relevant for storing
Data and program；Described audio signal occurs and filter circuit is connected with the signal output part of described processor, for process
The signal of device output processes；Described audio signal occurs and outfan and described electroacoustic transducer and the driving of filter circuit
The signal input part of circuit connects, and electroacoustic transducer and drive circuit thereof are used for converting the electrical signal to corresponding audio signal also
Launch in the form of a sound wave；
Identification device in sound near field is from server acquisition point name data message, and according to the data of server, sound near field identifies dress
Putting the acoustic signals converting this data to corresponding form, one or more smart mobile phone receives this acoustic signals, Qi Zhongsheng
Ripple signal packet contains classroom ID, and this classroom ID is that server-assignment is to the dynamic encrypting code in certain classroom, each intelligence hands
Machine is connected to server by mobile Internet, and the identity information of this dynamic encrypting code of feedback and this smart mobile phone gives service
Device, server, by checking, confirms that this smart mobile phone, whether in classroom, completes a work attendance.
Further technical scheme is: described sound near field identify device include mixed-media network modules mixed-media, processor, memorizer,
Audio signal occurs and filter circuit and electroacoustic transducer and drive circuit, described mixed-media network modules mixed-media and the two-way company of described processor
Connect, carry out data interaction for realization and server；Described memorizer is bi-directionally connected with described processor, relevant for storing
Data and program；Described audio signal occurs and filter circuit is connected with the signal output part of described processor, for process
The signal of device output processes；Described audio signal occurs and outfan and described electroacoustic transducer and the driving of filter circuit
The signal input part of circuit connects, and electroacoustic transducer and drive circuit thereof are used for converting the electrical signal to corresponding audio signal also
Launch in the form of a sound wave；
Smart mobile phone is by server or is built in the data acquisition authentication data letter prestored in internal memory in smart mobile phone
Breath and control command data information, according to the data prestored in the data of server or mobile phone send corresponding acoustic signals to
Sound near field identifies device, it is achieved the function of past near-field control panel.
Further technical scheme is: described sound near field identifies that device also includes earphone interface, described smart mobile phone
On earphone interface and described sound near field identify that the earphone interface on device is connected communication by both-end earphone cord.
Further technical scheme is: described sound near field identifies that device also includes bluetooth or WIFI module, described
Smart mobile phone identifies without the most multiple described sound near field of manual confirmation under sound wave near field identification circuit function
Device locks one of them specified described sound near field and identifies that the bluetooth of device or WIFI module communicate.
Use and have the beneficial effects that produced by technique scheme: described system may apply to location, night watching, examines
Duty, gate inhibition, equipment repair and maintenance system, be particularly well-suited to location, repair and maintenance and patrol system, it is not necessary to mobile terminal is special hand-held sets
Standby, it is possible to achieve similar radio frequency contactless identification technical operation.And than same use mobile phone as mobile terminal, rely on NFC,
WIF or Bluetooth technology are more convenient as localizer and the location of mobile communication, repair and maintenance and patrol system, it is easy to operation, tool
There are the highest economic worth and social benefit.Additionally, described system can be also used for Smart Home, multi-media classroom, meeting room
In place.
When described system is applied to the alignment system of Elevator maintenance system, its framework is succinct, easy to use, low cost
Honest and clean, it is easy to rapid deployment, greatly facilitate non-support cable and the certification of elevator repair and maintenance, be greatly facilitated elevator repair and maintenance with no paper
Process.
When described system is applied to school classroom roll calling system, in addition to the recognition methods of sound wave near field, have employed label
Inversion approach, solves in the industry difficult problem specifying place quickly to position a large amount of work attendance object.Its system structure is succinct, it is easy to real
Now and use, provide perfect solution for school classroom work attendance.
When described system is applied to multi-media classroom central control system, with mobile phone sound wave past near-field control panel, its structure
Succinctly, it is easy to and mobile phone interaction identification, easy to operate, provide solving intensive teaching building classroom educational technology equipment intelligentized control method
Perfect solution.
The present invention uses the method for thinking of mobile Internet, by ripe, traditional sonic transmissions and the technology of identification,
Intelligent mobile the Internet brings typical near-field identity recognizing technology, past near-field control technical field into, mutual in more and more universal movement
In networking intelligent terminal's application, there is the most wide universal meaning.
Accompanying drawing explanation
The present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings.
Fig. 1 is the theory diagram of system described in the embodiment of the present invention；
Fig. 2 is the first theory diagram that in the embodiment of the present invention, sound near field identifies device；
Fig. 3 is the second theory diagram that in the embodiment of the present invention, sound near field identifies device；
Fig. 4 is the third theory diagram that in the embodiment of the present invention, sound near field identifies device；
Fig. 5 is identification flow chart in the embodiment of the present invention；
Fig. 6 is the theory diagram that system described in the embodiment of the present invention is applied to roll-call attendance checking system
Fig. 7 is the 4th kind of theory diagram that in the embodiment of the present invention, sound near field identifies device；
Fig. 8 is the theory diagram of label inversion approach of the present invention；
Fig. 9 is the theory diagram that in the embodiment of the present invention, sound near field identifies that device uses as control panel；
Figure 10 is that in the embodiment of the present invention, sound near field identifies that device increases earphone cord Principle of Communication block diagram；
Figure 11 is that in the embodiment of the present invention, sound near field identifies that device increases the theory diagram of bluetooth/WIFI module.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Ground describes, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
Elaborate a lot of detail in the following description so that fully understanding the present invention, but the present invention is all right
Using other to be different from alternate manner described here to implement, those skilled in the art can be without prejudice to intension of the present invention
In the case of do similar popularization, therefore the present invention is not limited by following public specific embodiment.
As it is shown in figure 1, the embodiment of the invention discloses a kind of nearly field identification system of mobile Internet, know including sound near field
Other device, smart mobile phone and server, described sound near field identifies that device is for the letter receiving smart mobile phone or server sends
Number and send acoustic signals according to the signal received, sound near field identify device by the way of wired or wireless with described mobile phone
Being attached, described mobile phone carries out data interaction by wireless network and described server.
System principle is the acoustoelectronic parts indispensable according to smart mobile phone, uses sound wave modulation and digitizing technique, number
According to encryption authentication techniques, mobile Internet popularity rate height, mobile phone is utilized to be easily attached the features such as background server so that system is real
Shi Xinggao, good confidentiality, easy of use, customer experience is the best.
In the application of smart mobile phone near field identification at present, the technology of NFC class is optimal, but not every
This kind of function all supported by mobile phone, causes its application could not popularize in an all-round way, popularity rate extreme difference always.According to WIFI or bluetooth skill
Art, then mobile phone and the WIFI of localizer and blue tooth wireless technology are difficult to control in certain near field range, within such as 20cm, so
Multiple receptor is had to want timesharing to need when connecting manually to participate in match selection, complex operation in little scope.It addition, WIFI and indigo plant
Tooth technology is mainly used in connected network communication, supports complicated standard communication protocol, and its coupling and communication process are the most complicated.Both
Technology is suitable for the transmission of long-time mass data and is but not suitable for the application scenarios that location information very small amount data are transmitted.And use intelligence
Energy mobile phone technology of acoustic wave is the most different, owing to smart mobile phone 100% all uses audio A/D, D/A digital technology, is furnished with multistage sensitive
Degree regulation (mike end) and volume adjusting (speaker end) circuit, the signal transmission of mobile phone and receptor is easy to by controlling
Mike input sensitivity and audio output volume size realize the least near field range automatic without manual confirmation one to one
Mate and communicate.Furthermore, audio collection and the Play System of single mobile phone do not design for data communication, and itself is the most multiple
Miscellaneous shake hands, the agreement such as session, its reaction is fast, and seating surface is the widest, and APP programming easily, is therefore highly suitable for brief identity
Identify the transmission application scenario of data.
Introducing system framework as a example by elevator repair and maintenance are applied below, other application scenarios is similar.Present society
Upper elevator Frequent Accidents, a lot of and elevator repair and maintenance work not in place relevant.Some company of market uses Non-contact radio-frequency identification skill
Art realizes the location attendance management of elevator repair and maintenance.The hand-held expensive special hand-held card reader of repair and maintenance work, after certain elevator
Read locator information and realize repair and maintenance location.Repair and maintenance work safeguards special hand-held card reader while needing repair and maintenance elevator, to reality
Shi Shangchuan and download data, handheld reader SIM to be configured, hand over monthly rent etc. to operator.It is clear that this method
And inconvenient, cost is the highest, is difficult to universal.
System of the present invention makes smart mobile phone be prone to replace card reader special, has the biggest convenience, and is
Unite cheap, it is easy to popularize.Repair and maintenance work only need to download an APP in the smart mobile phone of oneself, in repair and maintenance elevator
Near localizer, by easy APP interface operation, the work attendance certification that puts in place can be completed.Use system of the present invention without
Repair and maintenance work buys the mobile phone of special type, it is not necessary to arranges and such as opens NFC function, opens WIF or bluetooth, input passwords
Etc. operation.Reduce the requirement to repair and maintenance work mobile phone hardware function and the requirement of repair and maintenance work operating handset setting i.e. as far as possible, real
Existing maximized simplification operates, and its experience effect is just as swiping the card by non-contact card.Further, due to mobile phone-downloaded one
APP can use, it is not necessary to safeguards card reader special, and mobile terminal, without any cost of equipment, only needs minimal amount of network traffics,
For going up the mobile phone monthly rent set meal of G flow at present easily, almost without cost.Therefore whole system and meet mobile Internet
The business model of rapid deployment, beneficially Rapid Popularization are with universal.
As in figure 2 it is shown, sound near field described in the embodiment of the present invention identifies that device includes acoustic sensor and amplifying circuit, sound
Frequently signal shaping and process circuit, processor, memorizer, audio signal occur and filter circuit and acoustic transducer and driving
Circuit, described acoustic sensor and amplifying circuit are connected with the input of described audio signal shaping and process circuit, are used for picking up
Take the acoustical signal that smart mobile phone sends；The outfan of described audio signal shaping and process circuit and the signal of described processor
Input connects, for processing acoustical signal；Described memorizer is bi-directionally connected with described processor, is used for storing relevant
Data and program；Described audio signal occurs and filter circuit is connected with the signal output part of described processor, for place
The signal of reason device output is changed and is filtered；Described audio signal occurs and signal output part and the described electroacoustic of filter circuit
The signal input part of transducer and drive circuit thereof connects, and electroacoustic transducer and drive circuit thereof are used for converting the electrical signal to phase
The audio signal answered also is launched in the form of a sound wave；
The arrow that smart mobile phone schematic diagram connects represents that smart mobile phone and sound near field identify the signal transmission direction of device.Whole
The hardware cost of system is that sound near field identifies installation cost.As in figure 2 it is shown, integrated circuit is mainly amplified by audio signal and
Reason circuit and processor system circuit constitute, the most highly developed and conventional in, low-frequency channel (less than 1MHz), there is no height
Frequency circuit, as long as reasonable in design, cost is relatively low, it is easy to produce.Its cost advantage, safeguard that convenience is significantly better than based on active
RFID, WIFI, the localizer of Bluetooth technology, because these circuit are directed to the application of high-frequency circuit and complex processor.
Acoustic data signals transmission technology can use following three kinds of technological means, but is not limited to introduced below this
Three kinds.
1) FSK modulation demodulation techniques (as shown in Figure 3) are used
Signal frequency owing to processing is relatively low, and the identification data of required transmission is little, and the processor in Fig. 3 can be low property
Cheap 4,8 single-chip microcomputers of energy.Whole sonic transmissions communication mode can use FSK modulation demodulation mode.FSK demodulates employing
Monolithic phase-locked loop circuit, if carrier frequency is relatively low, then inputs single-chip microcomputer after can directly amplifying shaping, surveys wide method by pulse
Demodulate signal.Modulation circuit can use the controlled oscillating circuit of SCM peripheral or when carrier frequency is relatively low by single-chip microcomputer
Produced by timer internal.
2) DTMF technology is used
Signal frequency owing to processing is relatively low, and the identification data of required transmission is little, uses a large amount of uses in telephone set
Dtmf signal occurs and receives decoding special chip, can complete data receiver and transmission, it is not necessary to encoding and decoding intervened by single-chip microcomputer.Cause
For only DTMF special chip being read and write data with I/O port, it is possible to use the single-chip microcomputer that very low side is cheap real
Existing.This method is that identification data is processed as a string telephone number in fact, the data transmission equivalent number of dialing
Code, is also very easy to realize in mobile phone A PP programs.Android and Fructus Mali pumilae kit/SDK there is ready-made DTMF to conciliate
Adjust function call.Its technically reliable, it is easy to accomplish, the construction cycle is short, with low cost.Even if not using special DTMF chip, place
Reason device directly passes through shaping circuit and low pass filter direct coding and decoding dtmf signal is also feasible.Simply process performance
Require more slightly higher.
(3) digital audio sampling and encoding and decoding technique (as shown in Figure 4) are used
This mode is converted into digital coding through A/D converter after the simulated audio signal of input is amplified and sends in processor,
Carry out digital decoding.Exporting, processor is converted into analog signal output through D/A converter after carrying out digital modulation.This side
Formula uses software to realize data modulation and demodulation, and motility is high, and message transmission rate is high, but requires the processor of superior performance
And peripheral circuit, relatively costly.
Three kinds of above-mentioned acoustic data signals transmission means can be except calling what development platform provided at mobile phone terminal
Outside function and control, it is also possible to use Fourier's series technology, the acoustic signals collected is analyzed；Use trigonometric function
Signal generation synthetic technology generates acoustic signals.
The certification of identity data performs flow process as shown in Figure 5:
Smart mobile phone sends specific sonic initiating signals Sn, and sound near field identifies that device receives complete sonic initiating signals
Sn, sends self unique reference number IDn the most in the form of a sound wave to smart mobile phone, and smart mobile phone uploads described IDn to server, clothes
Business device produces dynamic code Vni according to described IDn, and smart mobile phone obtains described dynamic code Vni and it sent in the form of a sound wave
To described sound near field identify device, sound near field identify device according to dynamic code Vni passback encrypted code Ani to smart mobile phone,
Smart mobile phone uploads encrypted code Ani to server, and server judges the legitimacy of encrypted code Ani, if legal, then use described from
Body unique reference number IDn, if not conforming to rule do not use self unique reference number IDn described.
Enabling signal Sn of Fig. 5 is a string good signal prepared in advance, can be fixed number word string, it is also possible to be to meet certain
As triggering sound near field, the dynamic data of individual form, identifies that device sends the signal of IDn.Sound near field identifies that device receives
Unique number IDn of self is sent to mobile phone after complete satisfactory Sn.After mobile phone is given by mobile Internet transmission IDn
Station server, server generates dynamic code Vni according to IDn.The generating function of Vni is as follows:
Vni=F1n (IDn) (1).
In formula (1), n, i are natural number subscript.N is the sequence number that certain sound near field identifies device, and i is certain dynamic code
Sequence number.
The corresponding sound near field of server storage identifies F1n code and the data of device, and sound near field identifies device in advance
The code of decryption function F2n of storage F1n and data, calculate Ani by F2n after receiving Vni and be transferred to clothes by mobile phone
Business device, its close function is:
Ani=F2n(Vni) (2)
In formula (2), n, i are natural number subscript.N is the sequence number of certain localizer, i be the sequence number of certain dynamic code or certain move
The sequence number of the deciphering of state code Vni.
Visible, suitable Choice encryption group of functions F1n and deciphering group of functions F2n, then Vni, Ani uniquely can obtain according to IDn
?.As long as the Vn(i+1 of i long enough and certain Vni and Ani and next time), An(i+1) dependency is the most weak and Vn and An position
Number length meets certain requirements, and can realize the strongest cipher round results.
The bout and simplify encryption flow of communicating of device is identified in order to reduce smart mobile phone and sound near field, can be at sound
Sound near field identifies the relation function of Ani and i that prestore in device, and it directly transmits Ani and i to mobile phone after receiving enabling signal Sn
Being uploaded to server authentication, mobile phone prestores F2n.As long as i long enough, Ani and the An(i+1 of next time) dependency is the most weak,
Ani figure place is sufficiently large, and its cipher round results is relatively good.
F1 and F2, the most not in smart mobile phone code, is therefore easily detected by cracking smart mobile phone and cracks whole system.When
So, certain sound near field identifies that the F2 of device can remove on-the-spot sound near field by violence and identify that device obtains, but will not
Affect other sound near field and identify the Cipher Strength of device.Furthermore, after mobile phone A PP starts, the person of may be used identifies, including
Determine cell-phone number used (i.e. confirming SIM) legitimacy, need user input to enter password etc., strengthen secret and safe.
As gate inhibition/work attendance application, the present invention also has following aspect to be better than tradition Non-contact radio-frequency near field identification technology, i.e.
The identification application of one-to-many.Such as in the identification of school's roll calling system.As shown in Figure 6, every classroom configuration at least
Platform sound near field identifies device, serial number 1-i, connects background server by LAN or Internet.Upper class hour teacher
Operation sound near field identifies that device initiates to call the roll, and sound near field identifies that device obtains Classroom Information, student's course letter from server
The information data that breath, student information etc. roll-call must have.According to the data of server, sound near field identifies that device is converted to phase
Answer the acoustic signals of modulation format, drive speaker to send acoustic signals through overdrive circuit.Utilize the nothing that smart mobile phone possesses
The acoustic receiver function of any matching operation certification, 1-n smart mobile phone is needed to be simultaneously received sound near field and identify the sound of device
Ripple signal, this acoustic signals comprises classroom ID.This classroom ID is that server-assignment is to the dynamic encryption in certain classroom
Yard, smart mobile phone receives background server by mobile internet, this dynamic encrypting code of feedback and this handset identities information
To server.Server, by checking, confirms that this mobile phone is the most on-the-spot in classroom, completes a work attendance certification.
As it is shown in fig. 7, use the sound near field of the present invention to identify that device receives server command and data, classroom will be comprised
The data such as the dynamic encrypting code of No. ID are converted into acoustic signals, the smart mobile phone 1-n being sent in classroom.Owing to roll calling system exists
In one is specified region, such as one classroom, sound wave needs to cover whole region, will not have a strong impact on again neighbouring classroom, therefore
Use the arrangement of directional loudspeaker array in classroom, accomplish that acoustic pressure covers uniformly as far as possible.
Described sound near field identifies that device includes that mixed-media network modules mixed-media, processor, memorizer, audio signal occur and filter circuit
With electroacoustic transducer and drive circuit, described mixed-media network modules mixed-media is bi-directionally connected with described processor, carries out with server for realization
Data interaction；Described memorizer is bi-directionally connected with described processor, for storing relevant data and program；Described audio signal
Occur and filter circuit is connected with the signal output part of described processor, for the signal of processor output is processed；Institute
State audio signal generation and the outfan of filter circuit is connected with the signal input part of described electroacoustic transducer and drive circuit, electricity
Acoustical convertor and drive circuit thereof are used for converting the electrical signal to corresponding audio signal and launching in the form of a sound wave；
The application mode contrast tradition Non-contact radio-frequency near field of this one-to-many of the present invention identifies technology, has notable technology to change
Good, sum up as follows:
(1) tradition Non-contact radio-frequency near field identification technology needing mark and obtaining each object (student as in case)
Identity label changes into needing mark and obtaining the identity label in each place (classroom as in case).By place identity mark
Signing and issuing and deliver to object carrier (smart mobile phone as in case), the carrier sending place identity label is (as near in the sound in case
Identify device) it is connected same backstage platform (server as in case) with object carrier and completes identification and in this place
Work attendance.It is herein collectively referred to as: " identification tag obtains and is inverted ", is called for short " label inversion ".
(2) tradition Non-contact radio-frequency near field identifies that technology needs to identify that object tag, the present invention use sound wave near field one by one
Identification technology combines development of Mobile Internet technology, can disposably on-the-spot institute identity label be sent in all object carrier, pole
Shorten greatly authenticated time.
Above-mentioned " label inversion " has been widely used in the location of one-to-many/work attendance occasion, its principle below figure institute
Show.
Technology, object tag i.e. electronic tag (RF IC/ID card) are identified for tradition Non-contact radio-frequency near field；On-the-spot main
Machine is generally card reader, can configure one or more.During work attendance, on-the-spot main frame wants poll to scan multiple object tag, nothing
Opinion object tag uses passive or active mode, will complete to shake hands one by one, communicate, obtain object tag identity data these
Process, therefore scanning bulk velocity is slow.And press " the label inversion " that Fig. 8 method is improved, on-the-spot main frame sends unidirectional scene
Identity information gives whole object tag.Object tag and on-the-spot main frame have the network savvy connecting background host computer, support quickly
Complex network agreement, the on-the-spot host identity information that background host computer is returned by object tag transmission, can quickly realize big
The object work attendance location in place, place in batches.Further, the on-the-spot host identity information if background host computer prestores, it is also possible to save existing
The network of field main frame and background host computer connects.The central principle of visible this " label inversion " is exactly on-the-spot host computer polls object
Label changes into sending simple self-identification signal to object tag, and object tag needs this mark " I at the scene "
On-the-spot host identity information real-time Transmission is to background host computer, i.e. the one-to-many connected network communication displacement of on-the-spot main frame and object tag
For the object tag many-one connected network communication to background host computer.
The principle of mobile phone sound wave past near-field control panel and sound wave near field identify that technological system is identical, utilize the mobile phone must be supporting
Sound system realize mobile phone and need the near-field communication of device to be controlled (such as: multimedia classroom central control system), this
Communication can be unidirectional, i.e. mobile phone mails to need device to be controlled, it is also possible to be two-way.Referred herein to exhale and need control to set
Standby mobile phone acoustic signals communications portion is sound wave past near-field control panel.Classroom 1-n is controlled with described sound wave past near-field control
Panel system, has sound wave near-field receiver (being called for short: receptor) in it, teacher comes certain classroom, can open mobile phone A PP,
Near sound wave near field panel control device.
Smart mobile phone has network function and whole world unique handset number, and APP is prone to use the bodies such as input account password
The means such as part identification, it is easy to security identification and secrecy.If linkage background server, it is also possible to realize during teacher's mobile phone could pass through
Control controls educational technology equipment, it is to avoid student and idler's unauthorized use.Automatically can also be pressed by the schedule aranging of the school that links
The course time period authorizes specifies teacher to use equipment.The circuit structure of sound wave past near-field control panel is as shown in Figure 9.
Last as supplementing, the sound near field of the present invention identifies that device is also equipped with earphone input port, under special environment
With the wire communication of smart mobile phone, i.e. grafting earphone cord communication.Attachment structure figure is as follows:
In Figure 10, sound near field identifies that the earphone mouth audio demodulation input of device connects stereo output (the left sound of mobile phone earphone interface
One of road or R channel)；I/O signal/voice modulation input connects the MIC input of mobile phone earphone interface.Due to mobile phone MIC input port
Support key operation signal directly inputs, and the processor of localizer can directly transmit this kind of signal and carry out input communication.Also may be used
Communicate with the audio signal of output modulation.Modulation and demodulation technology that this wired connection mode uses, encrypting and decrypting skill
Art is then similar with the wireless sonicated described above the present invention, is not repeated.
In Figure 11, sound near field identifies that device can be equipped with bluetooth or WIFI module, and smart mobile phone can be at sound wave
Lock the described sound near field specified after the identification of near field and identify that device is communicated by bluetooth or WIFI module.Without
Artificial selection and confirmation bluetooth or WIFI module, only need to associate identification data and bluetooth or WIFI module MAC in advance
Code and bluetooth module title or WIFI module SSDI.The lowest solve the multiple bluetooth module in same region or WIFI is difficult to closely
Problem apart from interior multiselect one.Adopt in this way, i.e. identification can be realized in sound wave near-field information transmission circuit,
Sound wave near-field information transmission circuit can also be set to the transmission of simple plain code information, sound near field identifies that device is blue self
After the unique identification transmission of tooth module is to phone lock, by bluetooth module or WIFI module realize identity data identification and other
Substantial amounts of data are transmitted.
Claims (9)
1. the nearly field identification system of mobile Internet, it is characterised in that: include that sound near field identifies device, smart mobile phone kimonos
Business device, described sound near field identifies that device is for receiving smart mobile phone or signal that server sends sending out according to the signal received
Going out acoustic signals, sound near field identifies that device is attached with described mobile phone by the way of wired or wireless, and described mobile phone leads to
Cross wireless network and carry out data interaction with described server.
2. the nearly field identification system of mobile Internet as claimed in claim 1, it is characterised in that: described sound near field identifies device
Including acoustic sensor and amplifying circuit, audio signal shaping and process circuit, processor and memorizer, audio signal occur and
Filter circuit and acoustic transducer and drive circuit, described acoustic sensor and amplifying circuit and described audio signal shaping and
The input processing circuit connects, for picking up the acoustical signal that smart mobile phone sends；Described audio signal shaping and process electricity
The outfan on road is connected with the signal input part of described processor, for processing acoustical signal；Described memorizer and institute
State processor to connect, for storing relevant data and program；Described audio signal occurs and filter circuit and described processor
Signal output part connect, for processor output signal change and filter；Described audio signal occurs and filtering
The signal output part of circuit is connected with the signal input part of described electroacoustic transducer and drive circuit thereof, electroacoustic transducer and driving
Galvanic electricity road is used for converting the electrical signal to corresponding audio signal and launching in the form of a sound wave；
Smart mobile phone sends specific sonic initiating signals Sn, and sound near field identifies that device receives complete sonic initiating signals
Sn, sends self unique reference number IDn the most in the form of a sound wave to smart mobile phone, and smart mobile phone uploads described IDn to server, clothes
Business device produces dynamic code Vni according to described IDn, and smart mobile phone obtains described dynamic code Vni and it sent in the form of a sound wave
To described sound near field identify device, sound near field identify device according to dynamic code Vni passback encrypted code Ani to smart mobile phone,
Smart mobile phone uploads encrypted code Ani to server, and server judges the legitimacy of encrypted code Ani, if legal, then use described from
Body unique reference number IDn, if not conforming to rule do not use self unique reference number IDn described.
3. the nearly field identification system of mobile Internet as claimed in claim 2, it is characterised in that: described audio signal shaping and place
Reason circuit is FSK modulation circuit, and described audio signal occurs and filter circuit is Fsk demodulator.
4. the nearly field identification system of mobile Internet as claimed in claim 2, it is characterised in that: described audio signal shaping and place
Reason circuit is DTMF modulation circuit, and described audio signal occurs and filter circuit is DTMF demodulator circuit.
5. the nearly field identification system of mobile Internet as claimed in claim 2, it is characterised in that: described audio signal shaping and place
Reason circuit is that A/D changes direct sample circuit, uses soft-modulation, and described audio signal occurs and filter circuit is D/A conversion
Directly sample circuit, uses software demodulation.
6. the nearly field identification system of mobile Internet as claimed in claim 1, it is characterised in that: described sound near field identifies device
Occur including mixed-media network modules mixed-media, processor, memorizer, audio signal and filter circuit and electroacoustic transducer and drive circuit, described
Mixed-media network modules mixed-media is bi-directionally connected with described processor, carries out data interaction for realization and server；Described memorizer and described place
Reason device is bi-directionally connected, for storing relevant data and program；Described audio signal occurs and filter circuit and described processor
Signal output part connect, for processor output signal process；Described audio signal occurs and filter circuit
Outfan is connected with the signal input part of described electroacoustic transducer and drive circuit, and electroacoustic transducer and drive circuit thereof are used for will
The signal of telecommunication is converted into corresponding audio signal and launches in the form of a sound wave；
Identification device in sound near field is from server acquisition point name data message, and according to the data of server, sound near field identifies dress
Putting the acoustic signals converting this data to corresponding form, one or more smart mobile phone receives this acoustic signals, Qi Zhongsheng
Ripple signal packet contains classroom ID, and this classroom ID is that server-assignment is to the dynamic encrypting code in certain classroom, each intelligence hands
Machine is connected to server by mobile Internet, and the identity information of this dynamic encrypting code of feedback and this smart mobile phone gives service
Device, server, by checking, confirms that this smart mobile phone, whether in classroom, completes a work attendance.
7. the nearly field identification system of mobile Internet as claimed in claim 1, it is characterised in that: described sound near field identifies device
Occur including mixed-media network modules mixed-media, processor, memorizer, audio signal and filter circuit and electroacoustic transducer and drive circuit, described
Mixed-media network modules mixed-media is bi-directionally connected with described processor, carries out data interaction for realization and server；Described memorizer and described place
Reason device is bi-directionally connected, for storing relevant data and program；Described audio signal occurs and filter circuit and described processor
Signal output part connect, for processor output signal process；Described audio signal occurs and filter circuit
Outfan is connected with the signal input part of described electroacoustic transducer and drive circuit, and electroacoustic transducer and drive circuit thereof are used for will
The signal of telecommunication is converted into corresponding audio signal and launches in the form of a sound wave；
Smart mobile phone is by server or is built in the data acquisition authentication data letter prestored in internal memory in smart mobile phone
Breath and control command data information, according to the data prestored in the data of server or mobile phone send corresponding acoustic signals to
Sound near field identifies device, it is achieved the function of past near-field control panel.
8. the nearly field identification system of mobile Internet as described in claim 2,6 or 7, it is characterised in that: described sound near field is known
Other device also includes that earphone interface, the earphone interface on described smart mobile phone and described sound near field identify that the earphone on device connects
Mouth connects communication by both-end earphone cord.
9. the nearly field identification system of mobile Internet as described in claim 2,6 or 7, it is characterised in that: described sound near field is known
Other device also includes bluetooth or WIFI module, described smart mobile phone under sound wave near field identification circuit function without manually
Confirm the most multiple described sound near field to identify in device and lock one of them specified described sound near field identification device
Bluetooth or WIFI module communicate.
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| CN106059682B (en) | 2018-06-29 |
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Effective date of registration: 20191118 Address after: 510700 603, building B2, No. 162, science Avenue, Huangpu District, Guangzhou, Guangdong Province Patentee after: Guangzhou Yun Yu Electronic Technology Co., Ltd. Address before: 510000, room 17, No. 502, Yi Yi Street, Tianhe North Road, Tianhe District, Guangdong, Guangzhou Patentee before: Huang Hui |
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Denomination of invention: Mobile Internet near field identification system Effective date of registration: 20210719 Granted publication date: 20180629 Pledgee: China Co. truction Bank Corp Guangzhou Tianhe subbranch Pledgor: GUANGZHOU YUNYU ELECTRONIC TECHNOLOGY Co.,Ltd. Registration number: Y2021980006446 |