CN107944513A - A kind of testing ground wireless device identification system and method - Google Patents
A kind of testing ground wireless device identification system and method Download PDFInfo
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- CN107944513A CN107944513A CN201711162938.3A CN201711162938A CN107944513A CN 107944513 A CN107944513 A CN 107944513A CN 201711162938 A CN201711162938 A CN 201711162938A CN 107944513 A CN107944513 A CN 107944513A
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- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
- G06K17/0029—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
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- G06F18/24—Classification techniques
- G06F18/241—Classification techniques relating to the classification model, e.g. parametric or non-parametric approaches
- G06F18/2411—Classification techniques relating to the classification model, e.g. parametric or non-parametric approaches based on the proximity to a decision surface, e.g. support vector machines
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Abstract
A kind of testing ground wireless device identification system and method, including signal acquisition antenna, Software Radio platform, host computer and identity management software system, by the wireless fingerprint feature that collecting device is repeated several times in the production link of wireless device, form sample storehouse, the wireless device fingerprint characteristic for equipment of participating in the experiment is gathered in real time in the experiment link of wireless device, compared with sample storehouse pair, the identity information for equipment of participating in the experiment is drawn.The present invention can be used for that electronic equipment is quick, safely carries out identification and certification to being wirelessly transferred of participating in the experiment in experiment, and have good use value.
Description
Technical field
The invention belongs to electronic information technology and field of information security technology, specific descriptions are that a kind of testing ground is wireless
Equipment identities identifying system, available for electronic equipment is quick, safely carries out identification to being wirelessly transferred of participating in the experiment in experiment
With certification.
Background technology
The authentication that is wirelessly transferred electronic equipment of the current test scene to participating in the experiment, is mainly engraved by artificial contrast's equipment
The means of board are realized.In this way, equipment nameplate is attached directly on equipment of participating in the experiment, and testing ground administrative staff pass through
Direct labor compares mark content and the content recorded in database on equipment nameplate, realizes the identification to equipment identities of participating in the experiment
With certification.
In addition, the higher testing ground of partial automation degree adds RF tag (RFID), Jin Ertong for equipment of participating in the experiment
The means for crossing recognition radio frequency label identify equipment identities of participating in the experiment.In this way, using in attachment RFID marks in equipment of participating in the experiment
Label, then RFID tag is identified by RFID reader, realize the identification and authentication to equipment identities of participating in the experiment with reference to background data base.
Information exchange, rear number of units are carried out in open wireless channel by challenge-response mode between RFID tag and RFID reader
It is used to identifying, store and managing equipment FRID label information of participating in the experiment according to storehouse.
No matter above which kind of method, be to be identified using the feature manually added on electronic equipment, not directly
Connect and be identified using the physical features of electronic equipment in itself, therefore inevitably bring the risk of identity misrecognition, and
And in the case of similar in frequency range, RFID it is also possible to cause radio interference to equipment of participating in the experiment, participate in the experiment the normal of equipment by influence
Work.
The content of the invention
Present invention solves the technical problem that it is：Overcome the deficiencies in the prior art, participates in the experiment wireless device body for testing ground
The problems such as manual operation factor is more in part management, RFID may be interfered and can be tampered to experiment, there is provided one kind experiment
On-site wireless equipment identities identifying system, can gather wireless device feature and record in equipment development, at the trial directly
The radio characteristics and historical record for equipment of participating in the experiment are compared, identify equipment identities of participating in the experiment.
The present invention technical solution be：A kind of testing ground wireless device identification system, including signal acquisition
Antenna, Software Radio platform, identity management software system, wherein：
Signal acquisition antenna, gathers the radio characteristics for equipment of participating in the experiment according to running parameter and is converted to wire radio signal,
Send to Software Radio platform；The running parameter includes signal intercepted length, sample rate, wireless signal acquiring gain；
Software Radio platform, receives wire radio signal and demodulation obtains the corresponding numeral letter of equipment radio characteristics of participating in the experiment
Number, and give to identity management software system；
Identity management software system, carries out equipment radio characteristics of participating in the experiment machine training and study based on vector machine, obtains
To equipment radio characteristics matrix of participating in the experiment, participate in the experiment equipment essential information, wireless communication parameters, equipment of participating in the experiment radio characteristics matrix are stored
And corresponding environmental conditions parameter；It is based on after receiving the equipment radio characteristics to be identified of participating in the experiment that Software Radio platform is sent
The machine training and study of vector machine, obtain equipment radio characteristics matrix to be identified of participating in the experiment, calculate identity management software system respectively
The Euclidean distance of participate in the experiment the equipment radio characteristics matrix and equipment radio characteristics matrix to be identified of participating in the experiment of system storage, by minimum value pair
The equipment of participating in the experiment answered is as equipment to be identified of participating in the experiment；The environmental conditions parameter includes temperature, humidity, air pressure；The ginseng
Trying equipment essential information includes unit type, production batch；The wireless communication parameters include transmission power, carrier frequency,
Coding mode, signal bandwidth；The equipment radio characteristics of participating in the experiment include carrier wave frequency deviation, transmitting signal I/Q offsets, constellation rail
Mark figure step response, time domain beamformer morphological character, signal spectrum characteristic.
A kind of testing ground wireless device personal identification method, includes the following steps：
(1) radio characteristics for equipment of participating in the experiment are gathered according to running parameter and is converted to wire radio signal；The work
Parameter includes signal intercepted length, sample rate, wireless signal acquiring gain；
(2) the corresponding digital signal of equipment radio characteristics of participating in the experiment is obtained after wire radio signal is demodulated；
(3) equipment radio characteristics of participating in the experiment are carried out with machine training and study based on vector machine, the equipment that obtains participating in the experiment is wireless
Eigenmatrix, stores participate in the experiment equipment essential information, wireless communication parameters, equipment of participating in the experiment radio characteristics matrix and corresponding environment bar
Part parameter；
(4) collection carries out machine training and study based on vector machine after receiving equipment radio characteristics to be identified of participating in the experiment, and obtains
To equipment radio characteristics matrix to be identified of participating in the experiment, the equipment radio characteristics matrix of participating in the experiment for calculating storage respectively is set with to be identified participate in the experiment
The Euclidean distance of standby radio characteristics matrix, using the corresponding equipment of participating in the experiment of minimum value as equipment to be identified of participating in the experiment；The environment
Conditional parameter includes temperature, humidity, air pressure；The equipment essential information of participating in the experiment includes unit type, production batch；Described
Wireless communication parameters include transmission power, carrier frequency, coding mode, signal bandwidth；The equipment radio characteristics bag of participating in the experiment
It is special to include carrier wave frequency deviation, transmitting signal I/Q offsets, constellation trace graphics step response, time domain beamformer morphological character, signal spectrum
Property.
Host computer is further included, host computer provides running environment for identity management software system.
Described participates in the experiment equipment radio characteristics to be acquired in the case of device power-up of participating in the experiment.
The machine training includes with the method learnt：Matrixing pretreatment, eigenmatrix pre-weighting, grader
Practise.
By the testing ground wireless device identification system designed by the present invention, what is had compared with prior art has
Beneficial effect is：
(1) in the management of testing ground, the uncontrollable factor that substantial amounts of manual operation is brought is avoided, reduces experiment
The workload of personnel, can carry out quick, safely progress identification and certification to the electronic equipment that is wirelessly transferred participated in the experiment.
(2) mode being currently authenticated to the identity information adhered in equipment is different from, using directly to equipment physics
The mode that feature is authenticated, has the characteristic that can not be distorted, ensure that the security and uniformity of authentication.
(3) mode that currently employed RFID modes carry out authentication is different from, the system, which need not make to participate in the experiment, wirelessly to be set
Standby extra increase electromagnetic radiation, thus avoid RFID tag electromagnetic interference caused by wireless device.
Brief description of the drawings
Fig. 1 is the composition schematic diagram of system of the present invention；
Fig. 2 is the process for using figure of system of the present invention；
Fig. 3 is characterized storehouse composition schematic diagram；
Fig. 4 is the software flow pattern of identity characteristic template construct；
Fig. 5 realizes block diagram for the classifier algorithm based on support vector machines.
Example is embodied
The present invention is described in further detail with specific implementation below in conjunction with the accompanying drawings：
System realizes that experiment is existing by the way of signal acquisition antenna+Software Radio platform+host computer and software systems
The identification of field wireless device.
Fig. 1 is the composition schematic diagram of system of the present invention.Testing ground wireless device identification system passes through signal
Collection antenna gathers the electromagnetic signal for wireless telecom equipment radiation of participating in the experiment, and wireless signal is converted to wired penetrate by signal acquisition antenna
Frequency signal is supplied to Software Radio platform；Software Radio platform carries out signal AD conversions, and inputted according to operating personnel
Equipment wireless communication parameters carry out quantization sampling, obtain the primitive character of wireless telecom equipment radiation, and pass through USB data interface
It is supplied to the related software run on host computer；Host computer provides human-computer interaction interface, storage Various types of data for operating personnel, and
Run identity characteristic extraction, manage, software used in identification.
Fig. 2 is the process for using figure of system of the present invention, and the workflow of system is：
(1) in the production process of wireless communication, identification system is started；
(2) running parameter of identification system is inputted on host computer；
(3) wireless telecom equipment in development is started；
(4) signal characteristic of identification system collection wireless device；
(5) signal characteristic collected is stored in equipment feature database；
(6) wireless telecom equipment in development is closed；
(7) identification system is closed；
(8) to every suit in the wireless telecom equipment of development, repetition (1) to (7) link, the spy for completing single set wireless device
Sign collection；
(9) to all wireless telecom equipments in development, (1) to (8) link is repeated, completes the feature of all wireless devices
Collection；
(10) to all features collected, machine training and study are carried out, the identity for generating every suit wireless device is special
Levy template；
(11) terminate the production link of wireless communication, start the experiment link of wireless telecom equipment；
(12) running parameter of identification system is inputted on host computer, which should be with inputting in production link
Running parameter it is consistent；
(13) wireless telecom equipment in test is started；
(14) radio signal characteristics of wireless telecom equipment radiation are gathered；
(15) template in the radio signal characteristics collected and identity characteristic template library is weighted Euclidean distance ratio
It is right；
(16) identification result is drawn.
Fig. 3 is characterized storehouse composition schematic diagram.The wireless device signal feature that will be collected, after treatment, is organized into
For each category feature shown in Fig. 3.Feature includes four classes：
(1) equipment basic parameter.Including the equipment essential information such as unit type, production batch, transmission power, carrier frequency
The wireless communication parameters such as rate, coding mode, signal bandwidth.Equipment basic parameter is used for the basic condition for recording wireless device, from
The wireless communication parameters of identification software interface input should match with equipment.
(2) environmental conditions parameter.Including environmental conditions such as temperature, humidity, air pressures.Environmental conditions parameter is used to record this
Surrounding environment during equipment identities collection apparatus.
(3) system operational parameters.Including signal intercepted length, sample rate, wireless signal samples gain etc..System work ginseng
The working status of number configuration identification system, for a batch of equipment, system operational parameters should try one's best unanimously.
(4) equipment identities characteristic parameter.It is special including carrier wave frequency deviation, I/Q offsets, signal spectrum characteristic, time domain beamformer
Value indicative, constellation trajectory diagram characteristic value.Carrier wave frequency deviation, I/Q offsets are two single numerical value, signal spectrum characteristic, time domain ripple
Shape figure characteristic value, constellation trajectory diagram characteristic value are respectively the numerical value of one group of vector form, time domain beamformer characteristic value, constellation track
Figure characteristic value is extracted by time domain beamformer and constellation trajectory diagram respectively.
Fig. 4 is the software flow pattern of identity characteristic template construct.Its software flow is：
(1) wireless device original radio frequency signal is gathered；
(2) wireless device original signal is subjected to analog sampling；
(3) offset estimation is synchronous.Psamminida target frequency deviation is influenced be subject to local crystal oscillator, in some cases can
There is larger frequency deviation.For symbol sebolic addressing known to one section in transmitting signal, the signal received and known array are subjected to phase
Symbol difference is carried out behind pass again, generates offset estimation value to compensate the frequency deviation of full sequence.
(4) carrier phase synchronization.Carrier phase deviation is inevitably introduced during signal acquisition.For transmitting
Symbol sebolic addressing known to another section in signal, received signal is related to known array progress, phase error estimation and phase error value is generated,
To compensate the phase error of full sequence.
(5) signal collected time domain beamformer, constellation trajectory diagram are drawn respectively, line frequency spectrum analysis of going forward side by side.Time domain waveform
Figure draw method be：The signal received is point-by-point respectively with I roads and the drafting of Q roads described point on a timeline；Constellation trajectory diagram
The method of drafting is：The signal received is drawn with I roads and Q roads described point respectively on planisphere；The method of spectrum analysis is：
The signal subsection that will be received, carries out Fourier transform to every segment signal, obtains the frequency domain character of signal.
(6) temporal signatures, constellation trajectory diagram feature, the frequency domain character of signal are extracted respectively.Temporal signatures extracting method is：
I roads characteristic point and Q roads characteristic point are made the difference；Constellation trajectory diagram feature extracting method is：Using in Canny operator extraction images
Marginal information, constellation trajectory diagram feature is used as using marginal point；Frequency domain character extracting method is：To the letter after every section of Fourier transform
Number, its amplitude and frequency point are recorded respectively.
(7) vectorial normalized.To three category features collected, it is normalized respectively.
(8) by the vector after normalized, add up the identity characteristic matrix become to equipment radio characteristics single acquisition.
(9) multi collect is carried out to wireless device all in development process, and carries out the classification based on support vector machines,
Generate the identity characteristic template of each equipment.
Fig. 5 realizes block diagram for the classifier algorithm based on support vector machines.Its algorithm is：
(1) eigenmatrix pre-processes；
(2) environmental conditions such as temperature, humidity, air pressure when binding signal gathers, set eigenmatrix pre-weighting weight.In advance
Weighting the reference method that weight is set is：The numerical value such as all temperature, humidity, air pressure are taken into average respectively, by when time number of collection
Value makes the difference and takes absolute value with average, is considered as pre-weighting weight；
(3) classification based on support vector machines is carried out to eigenmatrix；
(4) classification results are iterated, by program adjust automatically weights；
(5) matrix after front and rear iteration twice is made the difference, when less than the situation of certain numerical value, program stops, and is considered as most
Whole eigenmatrix.
The content not being described in detail in description of the invention belongs to the known technology of those skilled in the art.
Claims (5)
1. a kind of testing ground wireless device identification system, it is characterised in that including signal acquisition antenna, software radio
Platform, identity management software system, wherein：
Signal acquisition antenna, according to running parameter collection participate in the experiment equipment radio characteristics and be converted to wire radio signal, send to
Software Radio platform；The running parameter includes signal intercepted length, sample rate, wireless signal acquiring gain；
Software Radio platform, receives wire radio signal and demodulation obtains the corresponding digital signal of equipment radio characteristics of participating in the experiment,
And send to identity management software system；
Identity management software system, carries out equipment radio characteristics of participating in the experiment machine training and study based on vector machine, is joined
Try equipment radio characteristics matrix, storage is participated in the experiment equipment essential information, wireless communication parameters, equipment of participating in the experiment radio characteristics matrix and right
The environmental conditions parameter answered；Carried out after receiving the equipment radio characteristics to be identified of participating in the experiment that Software Radio platform is sent based on vector
The machine training and study of machine, obtain equipment radio characteristics matrix to be identified of participating in the experiment, and calculate identity management software system respectively and deposit
The Euclidean distance of participate in the experiment the equipment radio characteristics matrix and equipment radio characteristics matrix to be identified of participating in the experiment of storage, minimum value is corresponding
Equipment of participating in the experiment is as equipment to be identified of participating in the experiment；The environmental conditions parameter includes temperature, humidity, air pressure；Described participating in the experiment is set
Standby essential information includes unit type, production batch；The wireless communication parameters include transmission power, carrier frequency, coding
Mode, signal bandwidth；The equipment radio characteristics of participating in the experiment include carrier wave frequency deviation, transmitting signal I/Q offsets, constellation trajectory diagram
Morphological character, time domain beamformer morphological character, signal spectrum characteristic.
2. a kind of testing ground wireless device personal identification method, it is characterised in that include the following steps：
(1) radio characteristics for equipment of participating in the experiment are gathered according to running parameter and is converted to wire radio signal；The running parameter
Including signal intercepted length, sample rate, wireless signal acquiring gain；
(2) the corresponding digital signal of equipment radio characteristics of participating in the experiment is obtained after wire radio signal is demodulated；
(3) equipment radio characteristics of participating in the experiment are carried out with machine training and study based on vector machine, obtains equipment radio characteristics of participating in the experiment
Matrix, stores equipment essential information of participating in the experiment, wireless communication parameters, equipment of participating in the experiment radio characteristics matrix and corresponding environmental condition ginseng
Number；
(4) collection carries out machine training and study based on vector machine after receiving equipment radio characteristics to be identified of participating in the experiment, and is treated
Identification is participated in the experiment equipment radio characteristics matrix, calculate respectively storage participate in the experiment equipment radio characteristics matrix with it is to be identified participate in the experiment equipment without
The Euclidean distance of line eigenmatrix, using the corresponding equipment of participating in the experiment of minimum value as equipment to be identified of participating in the experiment；The environmental condition
Parameter includes temperature, humidity, air pressure；The equipment essential information of participating in the experiment includes unit type, production batch；Described is wireless
Messaging parameter includes transmission power, carrier frequency, coding mode, signal bandwidth；The equipment radio characteristics of participating in the experiment include carrying
Wave frequency is inclined, transmitting signal I/Q offsets, constellation trace graphics step response, time domain beamformer morphological character, signal spectrum characteristic.
3. a kind of testing ground wireless device identification system host computer according to claim 1 or 2, its feature exist
In：Host computer is further included, host computer provides running environment for identity management software system.
4. a kind of testing ground wireless device identification system host computer according to claim 1 or 2, its feature exist
In：Described participates in the experiment equipment radio characteristics to be acquired in the case of device power-up of participating in the experiment.
A kind of 5. testing ground wireless device identification system according to claim 1 or 2, it is characterised in that：It is described
Machine training with study method include：Matrixing pretreatment, the study of eigenmatrix pre-weighting, grader.
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| CN201711162938.3A CN107944513B (en) | 2017-11-21 | 2017-11-21 | System and method for identifying identity of wireless equipment on test site |
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| CN110348258A (en) * | 2019-07-12 | 2019-10-18 | 西安电子科技大学 | A kind of RFID answer signal frame synchronization system and method based on machine learning |
| CN111510443A (en) * | 2020-04-07 | 2020-08-07 | 全球能源互联网研究院有限公司 | Terminal monitoring method and terminal monitoring device based on equipment portrait |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109934951A (en) * | 2018-11-22 | 2019-06-25 | 常州天正工业发展股份有限公司 | A method of according to installation electromagnetical signal analog calibration facility uniqueness |
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