WO2015184851A1 - 基于生物电子标签的特征提取、验证方法、设备、标签及存储介质 - Google Patents

基于生物电子标签的特征提取、验证方法、设备、标签及存储介质 Download PDF

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Publication number
WO2015184851A1
WO2015184851A1 PCT/CN2015/072582 CN2015072582W WO2015184851A1 WO 2015184851 A1 WO2015184851 A1 WO 2015184851A1 CN 2015072582 W CN2015072582 W CN 2015072582W WO 2015184851 A1 WO2015184851 A1 WO 2015184851A1
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WIPO (PCT)
Prior art keywords
user
tag
electronic tag
electronic
antenna
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PCT/CN2015/072582
Other languages
English (en)
French (fr)
Inventor
杨祥陵
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中兴通讯股份有限公司
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to EP15803503.0A priority Critical patent/EP3220314A4/en
Priority to US15/526,385 priority patent/US10068166B2/en
Publication of WO2015184851A1 publication Critical patent/WO2015184851A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/0716—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising a sensor or an interface to a sensor
    • G06K19/0718—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising a sensor or an interface to a sensor the sensor being of the biometric kind, e.g. fingerprint sensors
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/0772—Physical layout of the record carrier
    • G06K19/07722—Physical layout of the record carrier the record carrier being multilayered, e.g. laminated sheets
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10316—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10366—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the interrogation device being adapted for miscellaneous applications
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/30—Writer recognition; Reading and verifying signatures
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V2201/00—Indexing scheme relating to image or video recognition or understanding
    • G06V2201/10—Recognition assisted with metadata
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/20—Individual registration on entry or exit involving the use of a pass
    • G07C9/22—Individual registration on entry or exit involving the use of a pass in combination with an identity check of the pass holder
    • G07C9/25—Individual registration on entry or exit involving the use of a pass in combination with an identity check of the pass holder using biometric data, e.g. fingerprints, iris scans or voice recognition
    • G07C9/257—Individual registration on entry or exit involving the use of a pass in combination with an identity check of the pass holder using biometric data, e.g. fingerprints, iris scans or voice recognition electronically

Definitions

  • the present invention relates to electronic tags and applications thereof, and more particularly to a method and device for extracting and verifying features based on bioelectronic tags.
  • RFID is the abbreviation of Radio Frequency Identification, which is radio frequency identification technology, commonly known as electronic tag.
  • RFID radio frequency identification is a non-contact automatic identification technology that automatically recognizes target objects and acquires relevant data through radio frequency signals. The identification work can work in various harsh environments without manual intervention.
  • RFID technology can recognize high-speed moving objects and recognize multiple labels at the same time, which is quick and easy to operate.
  • NFC Near Field Communication
  • short-range wireless communication is a short-range high-frequency wireless communication technology that allows non-contact point-to-point data transmission between electronic devices. This technology evolved from contactless radio frequency identification (RFID).
  • the electronic tag After entering the radio frequency electromagnetic field generated by the electronic tag reader, the electronic tag will passively or actively transmit a signal of a certain frequency; after reading the information and decoding the electronic tag reader, the electronic information system processes the data.
  • Electronic tag readers can sometimes write information to electronic tags.
  • the communication and energy sensing methods between the electronic tag reader and the electronic tag are: Inductive Coupling and Backscatter Coupling.
  • inductive coupling when inductive coupling is adopted, after the tag enters the radio frequency electromagnetic field, the radio frequency signal sent by the reader is received, and the product information stored in the chip is sent by the energy obtained by the induced current.
  • backscattering when backscattering is used, the electromagnetic wave emitted based on the radar principle model encounters the target back reflection and carries back the target information, which is based on the spatial propagation law of the electromagnetic wave.
  • Embodiments of the present invention provide a new bio-electronic tag-based feature extraction and verification method and corresponding electronic device to improve the security of biometric information and the reliability of verification.
  • the embodiment of the invention further provides a fingerprint electronic tag that can be used in the above feature extraction and verification method.
  • an embodiment of the present invention provides a fingerprint electronic label, including:
  • An antenna formed by a conductive layer attached to the film substrate includes a fingerprint area, and the fingerprint area forms a microstrip antenna for printing a fingerprint pattern when the fingerprint electronic label is attached to a finger;
  • the antenna is a loop antenna, and a local deformation of the loop antenna is the fingerprint area.
  • the bioelectronic tag further includes a chip packaged between the film substrate and the protective film and electrically connected to the antenna.
  • the film substrate is a self-adhesive film substrate having a surface on which the conductive layer is not adhered, and the fingerprint region is located in a middle portion of the film substrate.
  • an embodiment of the present invention further provides a biometric tag-based biometric feature extraction method, including:
  • the electronic device turns on the function of the electronic tag reader and transmits the radio frequency signal
  • the electronic device performs the following test on the bioelectronic tag in the radio frequency electromagnetic field based on each of the set plurality of frequencies; transmitting the radio frequency signal at each of the frequencies and sequentially changing the transmit power of the radio frequency signal to determine Being able to detect the minimum transmit power of the bioelectronic tag response, Obtaining a pair of frequency-power values; wherein the bio-electronic tag is an electronic tag formed by a user's human body participating in real time;
  • the electronic device composes all frequency-power values obtained by the test into the user-specific frequency-minimum response power sequence as the biometric information of the user.
  • the method further includes: the electronic device reading the identification information of the bio-electronic tag, and saving the identification information and the user-specific frequency-minimum response power sequence.
  • the bioelectronic tag is formed by attaching the fingerprint electronic tag as described above to the user's finger; or
  • the bioelectronic tag is formed by using a user's finger as an antenna to form a closed loop with the user's human body;
  • the bio-electronic tag is formed by applying an antenna material on the user's finger as an antenna to form a closed loop with the user's body.
  • an embodiment of the present invention further provides an electronic device, including a system for extracting biometrics based on a bioelectronic tag, the system comprising:
  • the electronic tag reader module is configured to, after being turned on, perform the following test on the bioelectronic tag in the radio frequency electromagnetic field based on each of the set plurality of frequencies: transmitting the radio frequency signal at each of the frequencies, and changing sequentially Determining, by the transmit power of the radio frequency signal, a minimum transmit power capable of detecting the bioelectronic tag response, and obtaining a pair of frequency-power values; wherein the bio-electronic tag is an electronic tag formed by the user's human body participating in real time;
  • a feature extraction control module configured to configure the frequency and power, control the electronic tag reader module to complete the test, and combine all frequency-power values obtained by the test into the user-specific frequency-minimum response power The sequence is saved as biometric information of the user.
  • the electronic tag reader module is further configured to read the identification information of the bio-electronic tag
  • the identifier information is correspondingly saved.
  • an embodiment of the present invention further provides a bio-electronic tag-based identity verification method, including:
  • the electronic device turns on the electronic tag reader function
  • the electronic device periodically transmits a radio frequency signal and detects a response of the bioelectronic tag, wherein the bioelectronic tag is an electronic tag formed by the human body of the user to be verified in real time; wherein, one cycle includes multiple time slices, at each Setting the frequency and transmit power of the radio frequency signal on a time slice using a pair of frequency-power values in the expected user-specific frequency-minimum response power sequence, and all frequency-power values in the frequency-minimum response power sequence are in one cycle Are used;
  • the electronic device determines whether the response of the bio-electronic tag is continuously detected during the verification process of at least one period long, and if yes, the verification passes, that is, the user to be verified is determined to be the intended user.
  • the method further includes: reading identification information of the bio-electronic tag, and searching for a corresponding user-specific frequency-minimum response power sequence according to the identification information, The frequency-minimum response power sequence found is taken as the expected user-specific frequency-minimum response power sequence.
  • the bioelectronic tag is formed by attaching the fingerprint electronic tag as described above to a user's finger; or
  • the bioelectronic tag is formed by using a user's finger as an antenna to form a closed loop with the user's human body;
  • the bio-electronic tag is formed by applying an antenna material to the user's finger as an antenna to form a closed loop with the user's body.
  • an embodiment of the present invention further provides an electronic device, including a system for performing identity verification based on a bio-electronic tag, the system comprising:
  • the electronic tag reader module is configured to periodically transmit a radio frequency signal and detect a response of the bioelectronic tag after being turned on, wherein the bioelectronic tag is an electronic tag formed by the human body of the user to be verified in real time; wherein, one cycle includes Multiple time slices, using a pair of frequency-power values in a desired user-specific frequency-minimum response power sequence to set the frequency of the RF signal on each time slice Rate and transmit power, and all frequency-power values in the frequency-minimum response power sequence are used in one cycle;
  • the verification decision module is configured to determine whether the response of the bio-electronic tag is continuously detected during the verification process of at least one period long, and if yes, the verification is passed, that is, the user to be verified is determined to be the intended user.
  • the electronic tag reader module is further configured to: before periodically transmitting the radio frequency signal, read the identification information of the bio-electronic tag, and find a corresponding user-specific frequency-minimum response according to the identification information.
  • the embodiment of the present invention further provides a computer program and a storage medium thereof, the computer program comprising program instructions, when the program instruction is executed by an electronic device, enabling the device to perform the biometric tag-based biometric feature extraction method.
  • the storage medium stores the computer program.
  • the embodiment of the present invention further provides a computer program and a storage medium thereof, the computer program comprising program instructions, when the program instruction is executed by an electronic device, causing the device to perform the biometric tag-based identity verification method,
  • a storage medium stores the computer program.
  • the bio-electronic tag-based feature extraction and verification method and the corresponding electronic device combine biometrics with label technology to form a bio-electronic tag carrying biometric information of the user, and extract the unique based on the physical characteristics of the bio-electronic tag.
  • the corresponding frequency-minimum response power sequence is saved.
  • the bioelectronic tag is formed during use and disappears after use. There is no need to save biometrics such as fingerprints directly in images, etc., to avoid being imitated or illegally obtained.
  • the verification the real-time participation of the user in the formation of the bio-electronic tag is verified, and not only or not only the electronic code stored in the tag is verified, but the reliability of the authentication can be improved.
  • FIG. 1 is a schematic structural diagram of a fingerprint electronic tag according to an embodiment of the present invention.
  • FIG. 2 is a schematic view of the fingerprint electronic tag of FIG. 1 when worn on a finger;
  • FIG. 3 is a schematic view showing a fingerprint pattern printed on a fingerprint area of the fingerprint electronic label of FIG. 1;
  • FIG. 5 is a block diagram of an electronic device according to Embodiment 2 of the present invention.
  • FIG. 6 is a flow chart of a method according to Embodiment 3 of the present invention.
  • FIG. 7 is a block diagram of a third electronic device according to an embodiment of the present invention.
  • FIG. 9A is a schematic diagram of an arrangement of three sets of array antennas in Embodiment 4 of the present invention
  • FIGS. 9B-9D are schematic structural views of three sets of array antennas in FIG. 9A, respectively;
  • FIG. 10 is a block diagram of four electronic devices according to an embodiment of the present invention.
  • FIG. 11 is a flow chart of a method according to Embodiment 5 of the present invention.
  • FIG. 12 is a block diagram of an electronic device according to Embodiment 5 of the present invention.
  • FIG. 13 is a flow chart of a method according to Embodiment 6 of the present invention.
  • FIG. 14 is a schematic diagram showing the relationship between a space of a 6D holographic image and a Cartesian coordinate system according to an embodiment of the present invention
  • Figure 15 is a block diagram of an electronic device according to a sixth embodiment of the present invention.
  • Thin film electronic tags have been widely available, but there is no bioelectronic tag that the user's human body participates in in real time.
  • the fingerprint electronic tag of this embodiment can form a bio-electronic tag by fitting with a finger, and the uniqueness of the physical property of the bio-electronic tag is achieved by the uniqueness of the user's fingerprint.
  • the fingerprint electronic label of this embodiment is as shown in FIG. 1 and includes:
  • a protective film 30 covering the antenna and bonding to the film substrate
  • the film substrate 10 and the protective film 30 are the same size and are bonded together, the film is shown in the form of "10 (30)" in the figure, that is, the film substrate 10 is present and the protective film 30 is present.
  • the film substrate 10 may be a polyvinyl chloride (PVC) film.
  • PVC polyvinyl chloride
  • the film substrate 10 is a self-adhesive film substrate having a surface on which the conductive layer is not adhered.
  • the present invention is not limited thereto, and it is also possible to fix the label and the finger by means of other articles such as a tape when wearing.
  • the antenna 20 of the present embodiment is generally a loop antenna, but is locally deformed into a fingerprint area 201, and is formed as a microstrip antenna.
  • the resonant frequency of the microstrip antenna is easily adjusted by slotting at an appropriate position. Slotting can change the surface current path before the microstrip antenna, so that the current wraps around the groove edge, and the effective path becomes longer, which is equivalent to increasing the coil length. It has been verified by theory and practice that the resonant frequency adjustment range of the slotted adjustable-frequency thin substrate printed microstrip antenna can exceed 50%.
  • the fingerprint area 201 is located in the middle of the film substrate.
  • the antenna 20 may be attached to the film substrate 10 by printing using nano silver paste, but is not limited thereto, and may be other materials such as silver, copper, graphite, graphene or ultrasonic melting material, and attached to the film substrate by other processes. 10.
  • the two poles of the chip 40 can be interconnected with the two poles of the antenna by Flip Chip technology.
  • the chip 40 is mounted on one side of the film substrate 10.
  • An identifier such as a serial number (which may be composed of any symbol) may be pre-stored in the chip 40, and the serial number may identify a specific fingerprint electronic tag.
  • the chip 40 can also use chips with processing power and/or large data storage capabilities to perform more complex functions.
  • the chip 40 is optional.
  • the antenna 20 can be designed as a closed structure to form a closed loop, or when the label is worn on the finger.
  • the antenna 20 forms a closed loop with the human body.
  • the material of the protective film used for the thin film electronic label packaging is various from self-adhesive, paper, non-woven fabric to plastic.
  • a PVC film is selected, and the PVC film is covered on the PVC self-adhesive film as a substrate.
  • the glue is integrated into a film by cold gluing, and then cut into a film.
  • the size of the film can be designed according to requirements, such as 25mm ⁇ 40mm ⁇ 30mm ⁇ 50mm.
  • FIG. 2 is a schematic view showing the fingerprint electronic tag 1 when it is worn on a finger.
  • the printed electronic label 1 has a fingerprint area 201.
  • the fingerprint area 201 is attached to the fingerprint portion of the finger's fingertips, and then the other parts are fitted to the finger, and the chip 40 is partially placed on the nail to provide a certain support protection. effect.
  • the pattern of the fingerprint 2 is embossed in the fingerprint area 201 (similar to the printed antenna pattern), which is equivalent to slotting the microstrip antenna, changing
  • the physical characteristics of the original antenna, that is, the fingerprint pattern printed by the fingerprint area 201 is such that the fingerprint area 201 is formed as a microstrip antenna with fingerprint slotting characteristics, and because of the rich change of the fingerprint, the different labels can be added more than simply changing the length of the coil.
  • the size of the change in frequency Due to the uniqueness of the user's fingerprint, a bioelectronic tag (referred to as an electronic tag formed by the user's human body in real time) having a unique frequency characteristic can be obtained.
  • the bioelectronic tag generates a unique feedback signal to the electronic tag reader's RF electromagnetic field, and the tag reader can identify the unique tag.
  • the material of the fingerprint electronic tag has elasticity, so that the fingerprint can be restored, and the fingerprint mark disappears in the fingerprint area, thereby ensuring that the fingerprint is not illegally stolen. Even if the fingerprint pattern of a user's plane is stolen, the biometric label of the embodiment cannot be generated by others, and thus the bio-electronic label is difficult for others to imitate except for the user himself.
  • the bioelectronic tag or other form of bioelectronic tag formed based on the first embodiment has physiological characteristics corresponding to the user's biometric features such as fingerprints, which can be extracted and saved in some manner and used for verification of the bioelectronic tag.
  • the embodiment relates to a biometric electronic tag extraction method and a corresponding electronic device. As shown in FIG. 4, the method includes:
  • Step 110 The electronic device turns on the function of the electronic tag reader to transmit a radio frequency signal.
  • the electronic device in this document may include a physical device, and may also include multiple physical devices that are wired or wirelessly connected to each other for performing biometric extraction.
  • a typical application of the electronic device is a smart phone, but the invention is not limited thereto, and may be any reader function with an electronic tag (such as an RFID tag or an NFC tag) and Electronic devices of logical processing capabilities, such as IPAD, PDA, PC, etc., may also be comprised of an electronic tag reader and another device with logical processing capabilities connected thereto.
  • the electronic tag reader may also be referred to as a reading device, a scanner, a read head, a communicator, a reader/writer (depending on whether the electronic tag can wirelessly rewrite data), and the like, including a processor, a program memory, and a data memory.
  • Step 120 The electronic device performs the following test on the bioelectronic tag in the radio frequency electromagnetic field based on each of the set plurality of frequencies; transmitting the radio frequency signal at the frequency and sequentially changing the transmit power of the radio frequency signal to determine The minimum transmit power of the bioelectronic tag response can be detected to obtain a pair of frequency-power values; wherein the bio-electronic tag is an electronic tag formed by the user's human body participating in real time;
  • the user wears the fingerprint electronic tag on the finger to form a bioelectronic tag, and the user places the finger on the electronic tag reader (taking the NFC reader as an example).
  • the NFC reader sends a signal to the tag at a low frequency at a set frequency, and gradually increases the transmit power until the tag is detected to be responsive (ie, an electronic tag is detected in the radio frequency electromagnetic field). Power is the minimum response power at this frequency.
  • a signal is sent from the high power to the tag, and the transmit power is gradually reduced until the tag is detected to be unresponsive, and the last detected power is the minimum response power at the frequency.
  • the minimum response power corresponding to each frequency can be obtained and recorded as a pair of frequency-power values.
  • the number of set frequencies should ensure that the obtained sequence uniquely corresponds to the fingerprint, and can be selected according to experience, test results, statistical data, and the like.
  • Step 130 The electronic device combines all the frequency-power values obtained by the test into the user-specific frequency-minimum response power sequence, and saves the biometric information of the user.
  • the user-specific frequency-minimum response power sequence obtained above corresponds to a user fingerprint, and may also be referred to as an electronic fingerprint of the user, and may uniquely identify a bioelectronic tag formed by one fingerprint.
  • bioelectronic tags have different minimum response powers for multiple frequencies, so a user electronic fingerprint database can be established, ie a list of specific frequencies and their minimum response power, for example:
  • Fingerprint 1 (13.28, 2.5); (13.00, 4); ...; (12.72, 8).
  • Fingerprint 2 (13.28, 4.0); (13.00, 8); ...; (12.72, 15).
  • the user's electronic fingerprint can be saved in the user terminal. It can also be collected by the authoritative certification department, which can be collected online through the certification website. Users can also go to the corresponding organization to authenticate.
  • the certified electronic fingerprint information is stored in a secure database server.
  • Bio-electronic tags can generate bio-electronic tags in real-time using biometric features such as fingerprints and veins on the fingers. Biometrics can be combined with electronic tags by means of pasting, painting, wearing, and implanting. Bio-electronic tags are difficult to copy and counterfeit, and naturally directly represent a certain creature.
  • the bioelectronic tag formed by attaching the fingerprint electronic tag to the user's finger in the first embodiment may be used, but the present invention is not limited thereto.
  • the bioelectronic tag may also be a user's finger as an antenna (different The fingerprint also exhibits different frequency characteristics in the RF electromagnetic field, which is formed by forming a closed loop with the user's human body; or, the user's finger is coated with an antenna material (such as a conductive material such as graphene) as an antenna. Obtaining enhanced fingerprint features and forming a closed loop with the user's body.
  • the frequency-minimum response power sequence needs to be associated with the bio-electronic tag, so that when the user is verified later, the corresponding one can be selected.
  • Frequency - minimum response power sequence In order to achieve the above-mentioned feature extraction, before the step 120, the method further includes: the electronic device reading the identification information of the bio-electronic tag (the identification information may be saved in a chip of the bio-electronic tag), The identification information is saved corresponding to the user-specific frequency-minimum response power sequence.
  • the electronic device of the embodiment includes a system for extracting biometrics based on the bioelectronic tag.
  • the system includes:
  • the electronic tag reader module 11 is adapted to, after being turned on, perform the following test on the bioelectronic tag in the radio frequency electromagnetic field based on each of the set plurality of frequencies; transmit the radio frequency signal at the frequency, and sequentially change the The transmit power of the radio frequency signal determines a minimum transmit power capable of detecting the bioelectronic tag response, and obtains a pair of frequency-power values; wherein the bio-electronic tag is an electronic tag that the user's human body participates in real time.
  • a feature extraction control module 13 adapted to configure the frequency and power to control the electronic tag
  • the reader module performs the test and composes all of the frequency-power values obtained by the test into the user-specific frequency-minimum response power sequence as the biometric information of the user.
  • the electronic tag reader module is further configured to read the identification information of the bio-electronic tag; and the feature extraction control module saves the identification information when the user-specific frequency-minimum response power sequence is saved. Corresponding to save.
  • the extracted biometric information can be used to verify the user.
  • a corresponding bio-electronic tag-based identity verification method and corresponding electronic device are proposed.
  • the identity verification method based on the bioelectronic tag in this embodiment includes:
  • Step 210 The electronic device turns on the electronic tag reader function.
  • Step 220 The electronic device periodically transmits a radio frequency signal, and detects a response of the bioelectronic tag, where the bioelectronic tag is an electronic tag formed by the human body of the user to be verified in real time; wherein, one cycle includes multiple time slices, The frequency and transmit power of the radio frequency signal are set on each time slice using a pair of frequency-power values in the expected user-specific frequency-minimum response power sequence, and all frequency-power values in the frequency-minimum response power sequence are Used in one cycle;
  • the above electronic device may be an NFC-enabled mobile phone or a dedicated authentication device having an NFC function, but is not limited thereto.
  • the verification mode of the working frequency and power of the electronic tag reader can be switched on the NFC function (including the electronic tag reader function) on the mobile phone.
  • the user-specific frequency-minimum response power sequence can be obtained from a secure database server or local machine for setting the operating frequency and power of the NFC functional verification mode. According to the process of obtaining the user-specific frequency-minimum response power sequence according to the second embodiment, it can be known that only the bioelectronic tag that is expected to be formed by the user's human body in real time can generate a continuous response to the radio frequency signal of the frequency and power thus set, that is, each of the repeated The response can be detected in a time slice.
  • the bio-electronic tag may be formed by attaching the fingerprint electronic tag of the first embodiment to the user's finger; or the bio-electronic tag is the user's finger as the antenna, and The human body forms a closed loop; or the bioelectronic tag is formed by applying an antenna material to the user's finger as an antenna to form a closed loop with the user's body.
  • Step 230 The electronic device determines whether the response of the bio-electronic tag is continuously detected during the verification process of at least one period (that is, the response can be detected in each time slice), and if so, the verification is passed. That is, the user to be verified is determined to be the intended user.
  • the currently detected bioelectronic tag has an expected user-specific frequency-minimum response power sequence. Since the bio-electronic tag is formed by the real-time participation of the user, the bio-electronic tags formed by different users are different, and thus the bio-electronic tag is verified to be the bio-electronic tag of the intended user, and the user to be verified is determined to be the intended user.
  • the electronic device Before the electronic device periodically transmits the radio frequency signal, the electronic device further includes: reading the identification information of the bio-electronic tag, and searching for the corresponding user-specific frequency according to the identifier information. a minimum response power sequence that takes the found frequency-minimum response power sequence as the expected user-specific frequency-minimum response power sequence. Specifically, when searching, it can be searched locally in the electronic device, or can be accessed by a server in the network that stores the user frequency-minimum response power sequence.
  • an electronic device of this embodiment includes a system for performing identity verification based on a bio-electronic tag. As shown in FIG. 7, the system includes:
  • the electronic tag reader module 21 is adapted to periodically transmit a radio frequency signal and detect a response of the bioelectronic tag after being turned on, wherein the bioelectronic tag is an electronic tag formed by the human body of the user to be verified in real time; wherein, one cycle Included in the plurality of time slices, the frequency and the transmit power of the radio frequency signal are set on each time slice using a pair of frequency-power values in the expected user-specific frequency-minimum response power sequence, and the frequency-minimum response power sequence All frequency-power values are used in one cycle;
  • the verification decision module 23 is adapted to determine whether the response of the bio-electronic tag is continuously detected during the verification process of at least one period long. If yes, the verification is passed, that is, the user to be verified is determined to be the intended user.
  • the electronic tag reader module 21 is further configured to read the identification information of the bio-electronic tag before periodically transmitting the radio frequency signal, and find a corresponding user-specific frequency according to the identification information-minimum In response to the power sequence, the found frequency-minimum response power sequence is taken as the expected user-specific frequency-minimum response power sequence.
  • the embodiment relates to a method for spatially positioning an electronic tag and a corresponding electronic device. As shown in FIG. 8 , the method includes:
  • Step 310 Set at least three sets of array antennas distributed in three dimensions on the electronic device, each set of array antennas including a plurality of antenna array elements extending in one dimension;
  • the array antenna described above may be an NFC or RFID antenna array.
  • a microstrip antenna is used as the antenna element, and the microstrip antenna may be a rectangular or other shaped patch.
  • 9A, 9B, 9C, and 9D show an example in which three sets of array antennas are disposed on an electronic device.
  • the electronic device takes a mobile phone as an example.
  • three sets of array antennas perpendicular to each other are disposed on one surface of the surface of the mobile phone 5, including a first group of array antennas 51 as shown in FIG. 9B and a second group as shown in FIG. 9C.
  • the array antenna 52 and the third group array antenna 53 shown in FIG. 9D constitute a right-angle coordinate system, and the three sets of array antennas correspond to the X, Y, and Z axes, respectively.
  • the first group of array antennas 51 and the second group of array antennas 52 are disposed on two adjacent sides of the same surface of the mobile phone, and the third group of array antennas 53 are disposed at the boundary of the adjacent two sides, and perpendicular to the The surface may be rotated to a position perpendicular to the surface and may be stowed when not in use.
  • each of the plurality of antenna elements included in each group of array antennas is a plurality of microstrip antennas uniformly distributed in a straight line, and constitutes a coordinate point of the Cartesian coordinate system.
  • the first group of array antennas 51 includes antenna elements x1, x2, ..., x8;
  • the second group of array antennas 52 includes antenna elements y1, y2, ..., y8;
  • the third group of array antennas 53 includes antenna elements z1, z2 ,...,z8.
  • the number of antenna elements in the figure is only an example, and the number of antenna elements included in each group of array antennas can be selected according to the requirements of positioning accuracy.
  • Step 320 the electronic tag reader is turned on to generate a radio frequency electromagnetic field
  • Step 330 When an electronic tag exists in the radio frequency electromagnetic field, the induced voltage generated on each antenna element in each group of array antennas is collected;
  • Step 340 Determine spatial location information of the electronic tag according to the induced voltage.
  • three antenna array elements with the largest induced voltage among the three sets of array antennas may be respectively determined; the identification information of the three antenna array elements or the corresponding coordinate position is used as the spatial position information.
  • the bioelectronic tag moves in the radio frequency electromagnetic field, the induced electromotive force is obtained, and then the energy is fed back.
  • Each antenna array obtains an induced voltage, and the electronic device respectively determines the voltage of the feeder line drawn by each antenna element of each group of antenna arrays.
  • each group must have one antenna element xn, yn, zn and the vertical distance of the tag are the closest, and the signal sent by the tag is the strongest, so it can be considered
  • the antenna elements xn, yn, zn represent the coordinate values xn, yn, zn of the fingerprint electronic tag, that is, the coordinate value of the space where the finger is currently located can be expressed as (xn, yn, zn).
  • the coordinate values may also be replaced by an identifier of the antenna element, such as an index, which may be converted to a coordinate value when a specific spatial position is to be determined.
  • the electronic device of this embodiment includes a system for spatially locating an electronic tag.
  • the system includes:
  • the array antenna module 31 includes at least three sets of array antennas and corresponding circuits disposed on the electronic device and distributed in three dimensions, and each set of array antennas includes a plurality of antenna array elements extending in one dimension. Regarding the array antenna, reference can be made to the above description and FIGS. 9A to 9D.
  • the electronic tag reader module 33 is electrically connected to each of the antenna elements of each of the array antennas, and is adapted to generate a radio frequency electromagnetic field after being turned on, and collect each group when an electronic tag exists in the radio frequency electromagnetic field.
  • the induced voltage generated on each antenna element in the array antenna is electrically connected to each of the antenna elements of each of the array antennas, and is adapted to generate a radio frequency electromagnetic field after being turned on, and collect each group when an electronic tag exists in the radio frequency electromagnetic field.
  • the positioning module 35 is adapted to determine spatial position information of the electronic tag according to the induced voltage, such as determining three antenna elements having the largest induced voltage among the three sets of array antennas respectively; and the three antenna elements are The identification information or the corresponding coordinate position is used as the spatial position information.
  • the existing user can be in paper
  • the signature on the extension is extended to the 3D electronic signature and can be implemented using a mobile phone type terminal.
  • the embodiment relates to a method for 3D electronic signature and a corresponding electronic device. As shown in FIG. 11, the method includes:
  • Step 410 the electronic device turns on the electronic tag reader function to generate a radio frequency electromagnetic field
  • Step 420 The electronic device performs spatial positioning on the electronic tag in the radio frequency electromagnetic field by using a method for spatially positioning the electronic tag according to the fourth embodiment during the signing process;
  • the electronic tag is located on the finger and/or is formed by the finger.
  • the user can, but is not limited to, writing text, and the user can even create a painting and calligraphy work.
  • Step 430 The electronic device determines a spatial writing trajectory according to spatial position information obtained by spatial positioning, and uses the spatial writing trajectory as the 3D signature handwriting of the user collected this time.
  • the electronic tag reader or the processor in the electronic device can record the time information of the movement of the electronic tag to each positioning point while performing spatial positioning, and synthesize the spatial position information with the space position information.
  • Space-time coordinates (xn, yn, zn, tn).
  • the position, speed and direction of the electronic tag/finger movement in the radio frequency electromagnetic field can be calculated, and the obtained speed and direction information can reflect the user's writing habits in more detail, and can be used for more accurate handwriting identification.
  • the 3D electronic signature obtained by using the above steps 410, 420, and 430 needs to be verified, so it is necessary to pre-store a certified 3D signature handwriting of the user.
  • the electronic device local or the certification authority performs signature authentication, the following two exemplary methods may be adopted:
  • the electronic tag uses a bioelectronic tag formed by the user's human body in real time;
  • the bioelectronic tag is formed by attaching the fingerprint electronic tag in the first embodiment to the user's finger;
  • the fingerprint electronic tag includes: a flexible film substrate; attached to the film substrate
  • the bio-electronic tag may be formed by forming a closed loop with the user's human body using the user's finger as an antenna; or the bio-electronic tag is an antenna material applied to the user's finger as an antenna, and the user The human body forms a closed loop, and so on.
  • the electronic device uses the bio-electronic tag-based authentication method to authenticate the user in the signing process, such as the authentication pass, and the 3D signature handwriting of the user collected this time is used as the authenticated 3D signature handwriting of the user. Save, otherwise you can discard.
  • the method for verifying the user based on the bio-electronic tag-based authentication method is similar to the third embodiment, including:
  • the electronic device periodically transmits a radio frequency signal during the signature process and detects a response of the bioelectronic tag; wherein one cycle includes a plurality of time slices, and the expected user-specific frequency-minimum response power sequence is used on each time slice (The frequency and power of the radio frequency signal can be set from a pair of frequency-power values that can be obtained locally or obtained from a network authentication authority, and all frequency-power values in the frequency-minimum response power sequence are in one cycle used;
  • the electronic device determines whether the spatial location information of the bio-electronic tag can be detected for each time slice in the signature process. If yes, the fingerprint information in the 3D signature is authenticated, that is, the identity verification is passed. Otherwise, the signature verification will not pass. If the fingerprint information in the signature is authenticated, the 3D signature handwriting of the user collected this time may be saved as the authenticated 3D signature handwriting of the user, or discarded.
  • the electronic device receives the biometric information of the user collected by the sensor in real time through the electronic tag during the signing process, and after signing, verifies the received biometric information based on the pre-stored biometric information of the user that is authenticated. (Equivalent to authenticating the user). If the verification is passed, the 3D signature handwriting of the user collected this time is saved as the verified 3D signature handwriting of the user, otherwise it can be discarded.
  • the biometric information authenticated by the user may be collected by a corresponding authority or user or by other means. In the signature authentication process, the electronic device may obtain the biometric information authenticated by the user locally or from a network authentication authority.
  • the sensor collects the biometric information of the user in real time.
  • the acquisition of biometric features may include an RF fingerprint sensor or other fingerprint sensor, or a vein signature reader, or a temperature sensor or the like.
  • the biometric information collected by the sensor can be directly transmitted to the electronic device or forwarded to the electronic device through an electronic tag on the finger.
  • obtaining the verified 3D signature handwriting of the user is not limited to the above two methods.
  • the 3D signature handwriting of the user collected may be directly used as the user.
  • Certified 3D signature handwriting may change the traditional signature authentication method, making authentication more convenient and secure.
  • the user's authenticated 3D signature handwriting can be stored with the user-specific frequency-minimum response power sequence, under the corresponding user name of the secure database in the local or electronic network server of the certification authority.
  • the 3D signature handwriting of the user obtained by using the above steps 410, 420, 430 in an application scenario such as financial transaction, file signing, etc. is the signature to be verified.
  • the verification process can be performed in the following three exemplary ways:
  • the 3D signature handwriting of the user collected is compared and identified based on the pre-stored 3D signature handwriting of the user. If the authentication is passed, the signature verification is passed.
  • the comparison identification may be performed locally on the electronic device or requested by a network authority certification authority or other institution, and the specific handwriting identification method is not the content of the present invention.
  • the electronic tag uses a bioelectronic tag formed by the user's human body in real time;
  • the bioelectronic tag is formed by attaching the fingerprint electronic tag in the first embodiment to the user's finger;
  • the fingerprint electronic tag includes: a flexible film substrate; attached to the film substrate
  • An antenna formed by the conductive layer, the antenna includes a fingerprint area, the fingerprint area forming a microstrip antenna for printing a fingerprint pattern when the fingerprint electronic label is attached to the finger; and covering the antenna And a protective film attached to the film substrate;
  • the bioelectronic tag may also be a user's finger as an antenna and a human body shape
  • the bioelectronic tag is formed by applying an antenna material to the user's finger as an antenna, forming a closed loop with the user's body, and the like.
  • the electronic device authenticates the user using a bio-electronic tag-based authentication method in a signature process, such as authentication, and then collects the user based on the pre-stored authenticated 3D signature handwriting of the user.
  • the 3D signature handwriting is compared and identified. If the identification is passed, the signature verification is passed. If the authentication fails or the authentication fails, the signature verification will not pass.
  • the method for verifying the identity of the user based on the bio-electronic tag-based authentication method is similar to that of the third embodiment, including:
  • the electronic device periodically transmits a radio frequency signal during the signature process and detects a response of the bio-electronic tag; wherein one cycle includes a plurality of time slices, and the expected user-specific frequency-minimum response power sequence is used on each time slice a pair of frequency-power values set the frequency and transmit power of the radio frequency signal, and all frequency-power values in the frequency-minimum response power sequence are used in one cycle;
  • the electronic device determines whether the spatial location information of the bio-electronic tag can be detected for each time slice in the signature process. If yes, the identity (fingerprint information) is verified, otherwise the signature verification is not passed. . If the identity (fingerprint information) in the signature is verified, the signature handwriting obtained at the same time may be further compared with the 3D signature handwriting of the user that is locally or by the network authority certification authority based on the pre-stored authentication, to determine whether the signature verification is by.
  • the process of verifying the user using the bioelectronic tag-based authentication method of Embodiment 3 is to set the transmission frequency and power of the electronic tag reader by using a user-specific frequency-minimum response power sequence, that is, the entire signature action of the finger.
  • the electronic tag reader maintains the frequency-minimum response power value periodic switching mode described in Embodiment 3. If the time position of the finger is detected in each time slice in the signature process, the identity (fingerprint) is indicated. Verification passed. Therefore, the identity (fingerprint) verification process and the positioning process of the electronic tag (ie, the obtained signature handwriting) are completely organically integrated, and no separate verification is required. If the fingerprint verification fails, the signature verification will not pass; if the complete signature handwriting can be obtained, it can be proved that the fingerprint is legal, and the signature handwriting can be further authenticated.
  • the electronic device receives the biometric information based on the pre-stored biometric information that is authenticated by the user.
  • the feature information is verified. If the verification is passed, the 3D signature handwriting of the user collected is compared and authenticated based on the authenticated 3D signature handwriting of the user. If the authentication is passed, the signature verification is passed.
  • the biometric information of the user collected by the sensor in real time includes one or more of fingerprint information, finger vein information, and temperature information.
  • the collected 3D signature handwriting of the user may also be saved as an image and/or video on the collectible entity.
  • the electronic device provided by the present invention can implement 3D electronic signature, as shown in FIG. 12, including:
  • the system 41 for spatially locating the electronic tag in the fourth embodiment is adapted to perform continuous spatial positioning on the electronic tag that moves with the user in the radio frequency electromagnetic field during the signing process.
  • the system records the time information of the movement of the electronic tag to each of the positioning points while performing spatial positioning to determine the position, speed and direction of movement of the electronic tag in the radio frequency electromagnetic field.
  • the signature generation module 43 is adapted to determine a spatial writing trajectory according to spatial position information obtained by spatial positioning, and use the spatial writing trajectory as the 3D signature handwriting of the user collected this time.
  • the signature may be pre-stored as a certified user 3D signature handwriting, at this time:
  • the electronic device further includes:
  • a system for authenticating based on a bio-electronic tag suitable for authenticating the user during the signing process, such as passing the authentication, notifying the signature storage module;
  • a signature storage module configured to save the 3D signature handwriting of the user collected as the user's authenticated 3D signature handwriting after receiving the notification;
  • the electronic device further includes:
  • a biometric verification module configured to receive, by the electronic tag, the biometric information of the user collected in real time by the electronic tag during the signing process, and after the signature, receive the biometric information based on the pre-stored biometric information of the user The biometric information is verified, for example, the verification is passed, and the signature storage module is notified;
  • the signature storage module is adapted to save the 3D signature handwriting of the user collected as the user's authenticated 3D signature handwriting after receiving the notification.
  • the above signature can also be verified as a signature to be verified, at this time:
  • the electronic device further includes:
  • the signature verification module is adapted to compare and identify the 3D signature handwriting of the user collected according to the pre-stored 3D signature handwritten by the user after the signature, and if the identification is passed, the signature verification is passed;
  • the electronic device further includes:
  • the system for authenticating based on the bio-electronic tag is adapted to perform identity verification on the user during the signing process, for example, the identity verification is passed, and the signature verification module is notified;
  • the signature verification module is adapted to compare and identify the 3D signature handwriting of the user collected according to the pre-stored 3D signature handwritten by the user after receiving the notification, if the identification passes, the current Signature verification passed;
  • the electronic device further includes:
  • the biometric verification module is configured to receive, by the electronic tag, the biometric information of the user collected by the sensor in real time during the signing process, and after receiving the signature, the biometric information is received based on the pre-stored biometric information of the user.
  • the biometric information is verified, for example, the verification is passed, and the signature verification module is notified;
  • the signature verification module is adapted to compare and identify the 3D signature handwriting of the user collected according to the pre-stored 3D signature handwritten by the user after receiving the notification, if the identification passes, the current Signature verification passed.
  • the system for performing identity verification based on the bioelectronic tag in the above third embodiment is similar to the system in the third embodiment, and includes:
  • An electronic tag reader module adapted to periodically emit a shot during the signature process after being turned on Frequency signal and detecting the response of the bioelectronic tag; wherein one cycle includes a plurality of time slices, and the frequency of the radio frequency signal is set on each time slice using a pair of frequency-power values in a desired user-specific frequency-minimum response power sequence And transmit power, and all frequency-power values in the frequency-minimum response power sequence are used in one cycle;
  • the verification decision module is adapted to determine whether each time slice in the signature process can detect the spatial location information of the bio-electronic tag, and if so, indicates that the biometric (fingerprint) is consistent, that is, the identity verification is passed. Processing can continue by the signature verification module.
  • the user can use the finger to write in the air, fuse the spatial writing trajectory (character writing habit) with the fingerprint and even other biological characteristics, digitize it, and fuse with the entire writing trajectory to generate a new 3D hand signature.
  • Writing in the air adds dimension and leaves no traces, making it difficult to imitate.
  • the fingerprint is not stored separately from the signature, but is naturally combined with the signature handwriting in real time, so higher security can be guaranteed.
  • the signature is completed in real time, which is natural and convenient for the user and conforms to the traditional habits. Free of fingerprints, traditional handwritten signatures, and stamps.
  • the above method can be used for signing confirmation of certificate contract documents, e-wallet, online payment, mobile phone and computer unlocking, access control, etc., to enhance transaction and information security in the most natural and traditional way; Application scenarios such as signature book sales, celebrity handwriting, and even calligraphy and painting creation and collection.
  • Application scenarios such as signature book sales, celebrity handwriting, and even calligraphy and painting creation and collection.
  • 3D human-machine interface interaction can also be realized.
  • the 3D holographic image space and the radio frequency electromagnetic field generated by the electronic device are overlapped on the electronic device configured with the 3D holographic image technology, and the 3D human-machine interface interaction can also be realized by using the above-mentioned electronic label spatial positioning technology.
  • the method and the electronic device of the 3D human-computer interaction of the embodiment are as shown in FIG. 13 , and the method includes:
  • Step 510 The electronic device turns on the function of the electronic tag reader to generate a radio frequency electromagnetic field, and the electronic device turns on the 3D holographic image space display function;
  • Step 520 The electronic device performs spatial positioning on the electronic tag that moves with the user's limb in the radio frequency electromagnetic field by using a method for spatially positioning the electronic tag during the 3D human-computer interaction process;
  • the above method for spatially positioning an electronic tag can adopt the method in the fourth embodiment.
  • Step 530 The electronic device determines, according to spatial location information obtained by spatial positioning, a motion trajectory of the user's limb in a radio frequency electromagnetic field;
  • Step 540 Convert the motion trajectory in the radio frequency electromagnetic field into a motion trajectory in the 3D holographic image space, and determine the operation of the user accordingly.
  • the Cartesian coordinate system formed by the three sets of array antennas disposed on the electronic device can be used as the three-dimensional space coordinate system of the 3D holographic image space, and the motion track of the electronic tag in the Cartesian coordinate system is used as the 3D.
  • the trajectory of motion in the holographic image space is used as the three-dimensional space coordinate system of the 3D holographic image space.
  • the solid flat cube represents a mobile phone 5101, and three sets of array antennas 5102, 5103, and 5104 are distributed in the XYZ direction of a surface of the mobile phone 5101, and the dotted cubic area 5105 is a natural coincidence of the 3D image space and the electromagnetic field space.
  • the part is the effective space for 3D human-computer interaction.
  • the three-dimensional space coordinate system of the 3D holographic image is the three-dimensional rectangular coordinate system identified by the antenna array described in steps 310-340.
  • the bioelectronic tag formed by the user's human body in real time may be used.
  • the method further includes: the electronic device performing identity verification on the user by using a bio-electronic tag-based authentication method in a 3D human-computer interaction process, such as passing the identity verification, accepting the operation of the user, If the authentication fails, the user's operation is not accepted. When the authentication fails, the user may be regarded as an illegal user, and the 3D human-computer interaction process is stopped.
  • This method of authenticating in the 3D interaction process (and the 3D signature process of the previous embodiment) combines the authentication with the user operation organically, without additional processing, is very convenient and has high security, and has a very high Good application value.
  • the above bio-electronic tag-based authentication method is similar to the third embodiment, including:
  • the electronic device periodically transmits a radio frequency signal during 3D human-computer interaction, and detects the raw The response of the electronic tag; wherein, one cycle includes a plurality of time slices, and the frequency and transmit power of the radio frequency signal are set on each time slice using a pair of frequency-power values in an expected user-specific frequency-minimum response power sequence, and All frequency-power values in the frequency-minimum response power sequence are used in one cycle;
  • the electronic device determines whether the spatial position information of the bio-electronic tag can be detected for each time slice in the 3D human-computer interaction process, and if yes, the verification passes, and if not, the verification fails.
  • the bioelectronic tag is formed by attaching a fingerprint electronic tag to a user's finger; the fingerprint electronic tag comprises: an elastic film substrate; and a conductive layer formed by the conductive layer attached to the film substrate An antenna, the antenna includes a fingerprint area, and the fingerprint area forms a microstrip antenna for printing a fingerprint pattern when the fingerprint electronic label is attached to the finger; and covering the antenna and the film substrate A protective film that fits.
  • the bio-electronic tag may be formed by using a user's finger as an antenna to form a closed loop with the user's human body; or the bio-electronic tag is an antenna applied to the user's finger. The material is used as an antenna to form a closed loop with the user's body, and so on.
  • the electronic device of this embodiment is used for 3D human-computer interaction, as shown in FIG.
  • the system 51 for spatially locating the electronic tag in the fourth embodiment is adapted to perform continuous spatial positioning on the electronic tag moving with the user's limb in the radio frequency electromagnetic field during the 3D human-computer interaction process;
  • the operation identification module 53 is adapted to determine a motion trajectory of the user limb in the radio frequency electromagnetic field according to the spatial position information obtained by the spatial positioning, convert the motion trajectory into a motion trajectory in the 3D holographic image space, and identify the user according to the motion trajectory Operation.
  • a Cartesian coordinate system composed of three sets of array antennas disposed on the electronic device may be used as a three-dimensional space coordinate system of the 3D holographic image space.
  • a motion trajectory of the electronic tag in the Cartesian coordinate system is used as a motion trajectory in the 3D holographic image space.
  • the electronic device of this embodiment may further include: a system for performing identity verification based on the bio-electronic tag, configured to perform identity verification on the user, such as identity verification, in a 3D human-computer interaction process. If the user's operation is accepted, if the authentication fails, the user's operation is not accepted.
  • a system for performing identity verification based on the bio-electronic tag configured to perform identity verification on the user, such as identity verification, in a 3D human-computer interaction process. If the user's operation is accepted, if the authentication fails, the user's operation is not accepted.
  • the system for authenticating based on a bio-electronic tag is similar to the third embodiment, and includes:
  • the electronic tag reader module is adapted to periodically transmit a radio frequency signal during the 3D human-computer interaction process after detecting, and detect the response of the bio-electronic tag; wherein, one cycle includes multiple time slices, and is used on each time slice A pair of frequency-power values in a user-specific frequency-minimum response power sequence is expected to set the frequency and transmit power of the radio frequency signal, and all frequency-power values in the frequency-minimum response power sequence are used in one cycle ;
  • the verification decision module is adapted to determine whether each time slice in the 3D human-computer interaction process can detect the spatial location information of the bio-electronic tag, and if yes, the identity verification is passed, and if not, the identity verification fails. .
  • the electronic tag reader module, the feature extraction control module, the electronic tag reader module, and the verification decision module in the electronic device proposed in the embodiments of the present invention may be implemented by a processor, and may also be implemented by a specific logic circuit;
  • the processor may be a processor on the terminal.
  • the processor may be a central processing unit (CPU), a microprocessor (MPU), a digital signal processor (DSP), or a field programmable gate array (FPGA). )Wait.
  • the above method if the above method is implemented in the form of a software function module and sold or used as a stand-alone product, it may also be stored in a computer readable storage medium.
  • the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions.
  • a computer device (which may be a personal computer, server, or network device, etc.) is caused to perform all or part of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read only memory (ROM), a magnetic disk, or an optical disk.
  • program codes such as a USB flash drive, a mobile hard disk, a read only memory (ROM), a magnetic disk, or an optical disk.
  • an embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores a computer program, and the computer program is used to execute the foregoing method of the embodiment of the present invention.
  • Embodiments of the present invention provide a feature extraction and verification method based on a bio-electronic tag, a device thereof, and a tag, wherein the fingerprint electronic tag utilizes an antenna formed by a flexible film substrate and a conductive layer attached to the film substrate, When the fingerprint electronic label is attached with the finger, a micro-band antenna that prints the fingerprint pattern has a special correspondence relationship with the human body fingerprint, and the fingerprint electronic label is carried on the finger to form a bio-electronic label formed by the user's human body in real time. It can improve the security of biometric information and the reliability of verification.

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Abstract

一种基于生物电子标签的特征提取、验证方法及其设备、标签，该指纹电子标签包括：一具有弹性的薄膜基板(10)；由附着在所述薄膜基板(10)上的导电层形成的一天线(20)，所述天线(20)包括一指纹区域(201)，所述指纹区域(201)在所述指纹电子标签与手指贴合时形成印出指纹图案的一微带天线；覆盖在所述天线(20)上并与所述薄膜基板贴合的一保护膜(30)。将上述指纹电子标签佩载在手指上，可形成用户人体实时参与形成的生物电子标签。提供了基于该生物电子标签进行生物特征提取和验证的方法、电子设备，可以提高生物特征信息的安全性和验证的可靠性。

Description

基于生物电子标签的特征提取、验证方法、设备、标签及存储介质 技术领域
本发明涉及电子标签及其应用，更具体地，涉及一种基于生物电子标签的特征提取、验证方法及其设备、标签。
背景技术
RFID是Radio Frequency Identification的缩写，即射频识别技术，俗称电子标签。RFID射频识别是一种非接触式的自动识别技术它通过射频信号自动识别目标对象并获取相关数据，识别工作无须人工干预，可工作于各种恶劣环境。RFID技术可识别高速运动物体并可同时识别多个标签，操作快捷方便。近场通信(Near Field Communication，NFC)，又称近距离无线通信，是一种短距离的高频无线通信技术，允许电子设备之间进行非接触式点对点数据传输。这个技术由免接触式射频识别(RFID)演变而来。
电子标签进入电子标签阅读器产生的射频电磁场后，会被动或者主动发送某一频率的信号；电子标签阅读器读取信息并解码后,，至中央信息系统进行有关数据处理。电子标签阅读器有时也可将信息写入电子标签。
电子标签阅读器及电子标签之间的通讯及能量感应方式有：感应耦合(Inductive Coupling)及后向散射耦合(Backscatter Coupling)两种。其中，采用感应耦合时，标签进入射频电磁场后，接收阅读器发出的射频信号,凭借感应电流所获得的能量发送出存储在芯片中的产品信息。采用后向散射耦合时，基于雷达原理模型发射出去的电磁波，碰到目标后反射，同时携带回目标信息，依据的是电磁波的空间传播规律。
目前已有通过电子标签对用户的合法身份进行验证的电子签名系统。但是现有的电子签名系统存在不少安全漏洞，电子标签(Tag)的电子编码容易被模仿或截获，进而导致大量的非法用户访问。
已有专利提出采用指纹鉴权的方式，加强安全保障。但目前的指纹鉴权方式下，指纹容易也被模仿或被非法获取。
另外，目前也有通过对书写笔迹进行签定来实现身份验证的方法，但目前的书写笔迹均是平面的，也容易模仿，还不能实现对空间书写笔迹的采集。
发明内容
本发明实施例提供一种新的基于生物电子标签的特征提取、验证方法及相应的电子设备，以提高生物特征信息的安全性和验证的可靠性。
本发明实施例还提供了一种可用于上述特征提取、验证方法的指纹电子标签。
为了解决上述技术问题，本发明实施例提供了一种指纹电子标签，包括：
一具有弹性的薄膜基板；
由附着在所述薄膜基板上的导电层形成的一天线，所述天线包括一指纹区域，所述指纹区域在所述指纹电子标签与手指贴合时形成印出指纹图案的一微带天线；
覆盖在所述天线上并与所述薄膜基板贴合的一保护膜。
可选地，所述天线为一环形天线，所述环形天线的局部变形为所述指纹区域。
可选地，所述生物电子标签还包括封装在所述薄膜基板和保护膜之间并与所述天线电连接的一芯片。
可选地，所述薄膜基板为一自粘性薄膜基板，其未附着有导电层的表面具有粘性，所述指纹区域位于所述薄膜基板的中部。
为了解决上述技术问题，本发明实施例还提供了一种基于生物电子标签的生物特征提取方法，包括：
电子设备开启电子标签阅读器功能，发射射频信号；
所述电子设备基于设定的多个频率中的每一频率，对射频电磁场内的生物电子标签做以下测试；以所述每一频率发射射频信号并逐次改变所述射频信号的发射功率，确定能够检测到所述生物电子标签响应的最小发射功率， 得到一对频率-功率值；其中，所述生物电子标签为用户的人体实时参与形成的电子标签；
所述电子设备将所述测试得到的所有频率-功率值组成所述用户特定的频率-最小响应功率序列，作为所述用户的生物特征信息保存。
可选地，所述方法还包括：所述电子设备读取所述生物电子标签的标识信息，将所述标识信息和所述用户特定的频率-最小响应功率序列对应保存。
可选地，所述生物电子标签为将如上所述的指纹电子标签贴合在所述用户的手指上而形成的；或者
所述生物电子标签是以用户的手指为天线，与用户的人体形成闭合回路而形成的；或者
所述生物电子标签是在用户的手指上涂抹天线材质作为天线，与用户人体形成闭合回路而形成的。
为了解决上述技术问题，本发明实施例还提供了一种电子设备，包括基于生物电子标签提取生物特征的系统，所述系统包括：
电子标签阅读器模块，设置为在开启后，基于设定的多个频率中的每一频率，对射频电磁场内的生物电子标签做以下测试：以所述每一频率发射射频信号，并逐次改变所述射频信号的发射功率，确定能够检测到所述生物电子标签响应的最小发射功率，得到一对频率-功率值；其中，所述生物电子标签为用户的人体实时参与形成的电子标签；
特征提取控制模块，设置为配置所述频率和功率，控制所述电子标签阅读器模块完成所述测试，及将所述测试得到的所有频率-功率值组成所述用户特定的频率-最小响应功率序列，作为所述用户的生物特征信息保存。
可选地，所述电子标签阅读器模块还设置为读取所述生物电子标签的标识信息；
所述特征提取控制模块保存所述用户特定的频率-最小响应功率序列时，将所述标识信息对应保存。
为了解决上述技术问题，本发明实施例还提供了一种基于生物电子标签的身份验证方法，包括：
电子设备开启电子标签阅读器功能；
所述电子设备周期性地发射射频信号，并检测生物电子标签的响应，所述生物电子标签为待验证用户的人体实时参与形成的电子标签；其中，一个周期包括多个时间片，在每一时间片上使用预期用户特定的频率-最小响应功率序列中的一对频率-功率值设置射频信号的频率和发射功率，且所述频率-最小响应功率序列中的所有频率-功率值在一个周期内均被使用；
所述电子设备判断在至少一个周期长的验证过程中，是否持续检测到所述生物电子标签的响应，如是，则验证通过，即确定所述待验证用户为所述预期用户。
可选地，在所述电子设备周期性地发射射频信号之前，还包括：读取所述生物电子标签的标识信息，根据所述标识信息查找到对应的用户特定的频率-最小响应功率序列，将查找到的频率-最小响应功率序列作为所述预期用户特定的频率-最小响应功率序列。
可选地，所述生物电子标签为将如上所述的指纹电子标签贴合在用户手指上而形成的；或者
所述生物电子标签是以用户的手指为天线，与用户的人体形成闭合回路而形成的；或者
所述生物电子标签是在用户手指上涂抹天线材质作为天线，与用户人体形成闭合回路而形成的。
为了解决上述技术问题，本发明实施例还提供了一种电子设备，包括基于生物电子标签进行身份验证的系统，所述系统包括：
电子标签阅读器模块，设置为在开启后，周期性地发射射频信号，并检测生物电子标签的响应，所述生物电子标签为待验证用户的人体实时参与形成的电子标签；其中，一个周期包括多个时间片，在每一时间片上使用预期用户特定的频率-最小响应功率序列中的一对频率-功率值设置射频信号的频 率和发射功率，且所述频率-最小响应功率序列中的所有频率-功率值在一个周期内均被使用；
验证判决模块，设置为判断在至少一个周期长的验证过程中，是否持续检测到所述生物电子标签的响应，如是，则验证通过，即确定所述待验证用户为所述预期用户。
可选地，所述电子标签阅读器模块还设置为在周期性地发射射频信号之前，读取所述生物电子标签的标识信息，根据所述标识信息查找到对应的用户特定的频率-最小响应功率序列，将查找到的频率-最小响应功率序列作为所述预期用户特定的频率-最小响应功率序列。
本发明实施例还提供一种计算机程序及其存储介质，该计算机程序包括程序指令，当该程序指令被电子设备执行时，使得该设备可执行上述基于生物电子标签的生物特征提取的方法，所述存储介质存储所述计算机程序。
本发明实施例还提供一种计算机程序及其存储介质，该计算机程序包括程序指令，当该程序指令被电子设备执行时，使得该设备可执行上述基于生物电子标签的身份验证的方法，所述存储介质存储所述计算机程序。
上述基于生物电子标签的特征提取、验证方法及相应的电子设备，将生物特征与标签技术结合，形成携带有用户生物特征信息的生物电子标签，并基于该生物电子标签的物理特性而提取到唯一对应的频率-最小响应功率序列保存。该生物电子标签在使用时形成，在使用后消失。无需将生物特征如指纹直接以影像等方式保存，避免了被模仿或被非法获取。在验证时，是对用户人体实时参与形成生物电子标签进行验证，而不是或不仅仅是对标签中保存的电子编码进行验证，可以提高身份验证的可靠性。
附图概述
图1是本发明实施例一指纹电子标签的结构示意图；
图2是图1指纹电子标签佩戴在手指上时的示意图；
图3是图1指纹电子标签的指纹区域印出指纹图案的示意图；
图4是本发明实施例二方法的流程图；
图5是本发明实施例二电子设备的模块图；
图6是本发明实施例三方法的流程图；
图7是本发明实施例三电子设备的模块图；
图8是本发明实施例四方法的流程图；
图9A是本发明实施例四中三组阵列天线布置的示意图，图9B-图9D分别是图9A中三组阵列天线的结构示意图；
图10是本发明实施例四电子设备的模块图；
图11是本发明实施例五方法的流程图；
图12是本发明实施例五电子设备的模块图；
图13是本发明实施例六方法的流程图；
图14是本发明实施例六3D全息影像空间与直角坐标系关系的示意图；
图15是本发明实施例六电子设备的模块图。
本发明的较佳实施方式
下文中将结合附图对本发明的实施例进行详细说明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互任意组合。
实施例一
薄膜电子标签已广泛存在，但并未有用户人体实时参与生成的生物电子标签。本实施例的指纹电子标签就可以通过与手指的贴合，而形成一生物电子标签，该生物电子标签物理特性的唯一性由用户指纹的唯一性来达成。
本实施例的指纹电子标签如图1所示，包括：
一具有弹性的薄膜基板10；
由附着在所述薄膜基板10上的导电层形成的一天线20，所述天线包括一指纹区域201，所述指纹区域201在所述指纹电子标签与手指贴合时形成印出指纹图案的一微带天线；
覆盖在所述天线上并与所述薄膜基板贴合的一保护膜30；及
封装在所述薄膜基板和保护膜之间并与所述天线电连接的一芯片40。
因为薄膜基板10和保护膜30大小相同且贴合在一起，图中采用“10(30)”的方式来表示其标示的位置处即存在薄膜基板10又存在保护膜30。薄膜基板10可以选用聚氯乙烯(PVC)薄膜。为了方便将上述标签粘贴在手指上，较佳地，该薄膜基板10为一自粘性薄膜基板，其未附着有导电层的表面具有粘性。但本发明不局限于此，在佩戴时也可以借助胶带等其他物品来实现标签和手指的固定。
如图所示，本实施例的天线20总体上为一环形天线，但在局部变形为指纹区域201，形成为微带天线，微带天线的谐振频率容易通过在适当位置开槽而得到调整，开槽可以改变微带天线之前的表面电流路径，使电流绕槽边曲折绕行，有效路径变长，相当于增长了线圈长度。经理论和实践验证，开槽的可调频薄基片印刷微带天线的谐振频率调整幅度可以超过50％。较佳地，指纹区域201位于所述薄膜基板的中部，图中虽然表示为椭圆形，但也可以为圆形、矩形或其他各种规则、不规则的形状，只要方便印出指纹即可。天线20可以采用纳米银浆通过印刷的方式附着在薄膜基板10上，但不局限于此，也可以采用银、铜、石墨、石墨烯或超声融化材料等其他材质，通过其他工艺附着在薄膜基板10。
芯片40与天线20电连接时可以采用倒装芯片(Flip Chip)技术将芯片40的两极与天线的两极互连。芯片40安装在薄膜基板10的一侧。芯片40中可预先存储一标识如序列号(可以由任何符号构成)，该序列号可标识特定的指纹电子标签。芯片40也可以采用具有处理能力和/或大容量数据存储能力的芯片来完成更为复杂的功能。对于本发明实施例的指纹电子标签来说，芯片40是可选的，无芯片40时，可以将天线20设计为一闭合结构以构成一闭合回路，也可以在标签佩戴到手指上时，由天线20与人体形成一闭合回路。
用于薄膜电子标签封装的保护膜的材质从不干胶、纸、无纺布到塑料，多种多样，本实施例选用PVC薄膜，将这一层PVC薄膜覆盖在作为基板的PVC自粘性薄膜上，通过冷胶合方式胶合成一体，再模切成膜片，膜片大小可以根据需要设计，如可以为25mm×40mm～30mm×50mm。
图2所示是将指纹电子标签1佩戴在手指上时的示意图。如图所示，指 纹电子标签1具有指纹区域201，佩戴时将指纹区域201贴合在手指指腹的指纹部位，再将其他部分顺势贴合在手指上，芯片40部分被置于指甲上，起到一定支撑保护作用。
此时，由于指纹区域201与指纹部位紧贴，如图3所示，指纹2的图案会凸印在指纹区域201(类似于印刷天线图案)，这相当于在微带天线上开槽，改变了原天线的物理特性，即指纹区域201印出的指纹图案使得指纹区域201形成为一带有指纹开槽特性的微带天线，而且由于指纹丰富的变化，比单纯改变线圈长度更能增加不同标签的频率的变化大小。由于用户指纹的唯一性，从而获得具有独一无二频率特性的可唯一代表某用户的生物电子标签(指用户人体实时参与形成的电子标签)。该生物电子标签对电子标签阅读器的射频电磁场的激励会产生独特的反馈信号，电子标签阅读器可识别这个唯一的标签。
当手指离开指纹电子标签时，指纹电子标签的材质具有弹性故可以回复原状，指纹区域中指纹印记消失，可保证指纹不被非法窃取。即使某个用户的平面的指纹图案被窃取，他人也无法生成本实施例的生物电子标签，因而生物电子标签除用户本人外，他人难以模仿。
实施例二
基于实施例一形成的生物电子标签或者其他形式的生物电子标签，具有与用户生物特征如指纹对应的生理特性，这些物理特性可以通过某种方式提取和保存，并用于对生物电子标签的验证。
本实施例涉及一种基于生物电子标签的生物特征提取方法及相应的电子设备，如图4所示，该方法包括：
步骤110，电子设备开启电子标签阅读器功能，发射射频信号；
应当说明的是，本文(包括本实施例和其他实施例)中的电子设备可以包括一个实体装置，也可以包括相互有线或无线连接用于完成生物特征提取的多个实体装置。该电子设备的一个典型应用是智能手机，但本发明不局限于此，可以是任何具有电子标签(如RFID标签或NFC标签)阅读器功能和 逻辑处理能力的电子设备如IPAD、PDA、PC等等，也可以是由电子标签阅读器及其连接的具有逻辑处理能力的另一装置构成。电子标签阅读器又可称为读出装置、扫描器、读头、通信器、读写器(取决于电子标签是否可以无线改写数据)等，包括处理器、程序存储器和数据存储器。
步骤120，所述电子设备基于设定的多个频率中的每一频率，对射频电磁场内的生物电子标签做以下测试；以该频率发射射频信号并逐次改变所述射频信号的发射功率，确定能够检测到所述生物电子标签响应的最小发射功率，得到一对频率-功率值；其中，所述生物电子标签为用户的人体实时参与形成的电子标签；
以实施例一的指纹电子标签形成的生物电子标签为例，用户在手指上佩戴该指纹电子标签形成生物电子标签，用户将手指置于电子标签阅读器(以NFC读写器为例)的工作范围内，NFC读写器在设定的一频率下，以低功率向标签发送信号，逐渐增强发射功率，直到检测到标签有响应(即检测到射频电磁场中存在有电子标签)，此时的功率即该频率下的最小响应功率。或者，在该设定的频率下，从高功率向标签发送信号，逐渐降低发射功率，直到检测到标签无响应，则最后一个检测到响应的功率即该频率下的最小响应功率。依次对设定的多个频率进行上述测试，即可获取每一频率对应的最小响应功率，记录为一对频率-功率值。设定的频率的数目要保证得到的序列与指纹唯一对应，可根据经验、测试结果、统计数据等方式选择。
步骤130，所述电子设备将所述测试得到的所有频率-功率值组成所述用户特定的频率-最小响应功率序列，作为所述用户的生物特征信息保存。
上述得到的用户特定的频率-最小响应功率序列对应于用户指纹，也可称为该用户的电子指纹，可以唯一标识一个指纹形成的生物电子标签。不同生物电子标签对于多个频率的最小响应功率是不同的，因此可以建立用户电子指纹数据库，即一系列特定频率与其最小响应功率的列表，例如：
指纹1：(13.28，2.5)；(13.00,4)；……；(12.72，8)。
指纹2：(13.28，4.0)；(13.00,8)；……；(12.72，15)。
………………………………………………………………
指纹n：(13.28，8.0)；(13.00,15)；……；(12.72，23)。
用户的电子指纹可以保存在用户终端中。也可以由权威认证部门采集认证，可以通过认证网站在线采集，用户也可以亲自到相应机构去认证。认证后的电子指纹信息存放于安全数据库服务器。
生物电子标签可以利用手指上指纹、静脉等生物特征实时生成生物电子标签，可以采用粘贴、涂抹、佩戴、植入等方式将生物特征与电子标签结合。生物电子标签难于复制伪造，天然直接唯一代表某一生物。如可以采用实施例一中指纹电子标签贴合在所述用户的手指上而形成的生物电子标签，但本发明不局限于此，例如，生物电子标签也可以是以用户的手指为天线(不同指纹在射频电磁场中也会体现出不同的频率特性)，与用户的人体形成闭合回路而形成的；或者，是在用户的手指上涂抹天线材质(如石墨烯等强导电性能的材质)作为天线以获得加强的指纹特征，与用户人体形成闭合回路而形成的。
在保存用户特定的频率-最小响应功率序列时，对于多用户的场景，还需要将频率-最小响应功率序列与生物电子标签对应起来，以方便在之后对用户进行验证时，可以选择到对应的频率-最小响应功率序列。为了达到这个目的，进行上述特征提取时，在步骤120之前，还可以包括：所述电子设备读取所述生物电子标签的标识信息(该标识信息可以保存在生物电子标签的芯片中)，将所述标识信息和所述用户特定的频率-最小响应功率序列对应保存。
相应地，本实施例的电子设备包括基于生物电子标签提取生物特征的系统，如图5所示，所述系统包括：
电子标签阅读器模块11，适用于在开启后，基于设定的多个频率中的每一频率，对射频电磁场内的生物电子标签做以下测试；以该频率发射射频信号，并逐次改变所述射频信号的发射功率，确定能够检测到所述生物电子标签响应的最小发射功率，得到一对频率-功率值；其中，所述生物电子标签为用户的人体实时参与形成的电子标签。
特征提取控制模块13，适用于配置所述频率和功率，控制所述电子标签 阅读器模块完成所述测试，及将所述测试得到的所有频率-功率值组成所述用户特定的频率-最小响应功率序列，作为所述用户的生物特征信息保存。
较佳地，所述电子标签阅读器模块还用于读取所述生物电子标签的标识信息；所述特征提取控制模块保存所述用户特定的频率-最小响应功率序列时，将所述标识信息对应保存。
实施例三
实施例二基于生物电子标签完成生物特征的提取后，可以使用提取的生物特征信息对用户进行验证。本实施例即提出相应的一种基于生物电子标签的身份验证方法及相应的电子设备。
如图6所示，本实施例基于生物电子标签的身份验证方法包括：
步骤210，电子设备开启电子标签阅读器功能；
步骤220，所述电子设备周期性地发射射频信号，并检测生物电子标签的响应，所述生物电子标签为待验证用户的人体实时参与形成的电子标签；其中，一个周期包括多个时间片，在每一时间片上使用预期用户特定的频率-最小响应功率序列中的一对频率-功率值设置射频信号的频率和发射功率，且所述频率-最小响应功率序列中的所有频率-功率值在一个周期内均被使用；
上述电子设备可以是具有NFC功能的手机，或具有NFC功能的专用的身份验证设备，但不局限于此。
以手机为例，可以在手机上的NFC功能(包含电子标签阅读器功能)上开启分时切换电子标签阅读器工作频率和功率的验证模式。预期用户特定的频率-最小响应功率序列可以从安全数据库服务器或本机的获得，以用于设置NFC功能验证模式的工作频率和功率。根据实施例二获取用户特定的频率-最小响应功率序列的过程可以知道，只有预期用户人体实时参与形成的生物电子标签能对此如此设置频率和功率的射频信号产生持续的响应，即周而复始的每一时间片中都能检测到响应。
本步骤中，所述生物电子标签可以是实施例一的指纹电子标签贴合在用户手指上而形成的；或者，所述生物电子标签是以用户的手指为天线，与用 户的人体形成闭合回路而形成的；或者，所述生物电子标签是在用户手指上涂抹天线材质作为天线，与用户人体形成闭合回路而形成的。
步骤230，所述电子设备判断在至少一个周期长的验证过程中，是否持续检测到所述生物电子标签的响应(即周而复始的每一时间片中都能检测到响应)，如是，则验证通过，即确定所述待验证用户为所述预期用户。
如果在至少一个周期长的验证过程中，持续检测到所述生物电子标签的响应，说明当前检测的生物电子标签具有预期用户特定的频率-最小响应功率序列。而由于生物电子标签是用户人体实时参与形成的，不同用户形成的生物电子标签不同，因而验证生物电子标签是预期用户的生物电子标签，即可确定待验证用户是预期用户。
为了实现一个电子设备对多用户的验证，所述电子设备周期性地发射射频信号之前，还包括：读取所述生物电子标签的标识信息，根据所述标识信息查找到对应的用户特定的频率-最小响应功率序列，将查找到的频率-最小响应功率序列作为所述预期用户特定的频率-最小响应功率序列。具体在查找时，可以在电子设备本地查找，也可以访问网络中的存储有用户频率-最小响应功率序列的服务器来查找。
相应地，本实施例的一种电子设备包括基于生物电子标签进行身份验证的系统，如图7所示，所述系统包括：
电子标签阅读器模块21，适用于在开启后，周期性地发射射频信号，并检测生物电子标签的响应，所述生物电子标签为待验证用户的人体实时参与形成的电子标签；其中，一个周期包括多个时间片，在每一时间片上使用预期用户特定的频率-最小响应功率序列中的一对频率-功率值设置射频信号的频率和发射功率，且所述频率-最小响应功率序列中的所有频率-功率值在一个周期内均被使用；
验证判决模块23，适用于判断在至少一个周期长的验证过程中，是否持续检测到所述生物电子标签的响应，如是，则验证通过，即确定所述待验证用户为所述预期用户。
较佳地，所述电子标签阅读器模块21还用于在周期性地发射射频信号之前，读取所述生物电子标签的标识信息，根据所述标识信息查找到对应的用户特定的频率-最小响应功率序列，将查找到的频率-最小响应功率序列作为所述预期用户特定的频率-最小响应功率序列。
实施例四
本实施例涉及一种对电子标签做空间定位的方法及相应的电子设备，如图8所示，所述方法包括：
步骤310，在电子设备上设置成三维分布的至少三组阵列天线，每一组阵列天线包括在一个维度上延展的多个天线阵元；
上述阵列天线可以是NFC或RFID天线阵列。较佳地，采用微带天线作为天线阵元，微带天线如可以是矩形的或其他形状的贴片。
图9A、图9B、图9C和图9D所示是在电子设备上设置三组阵列天线的一个示例。该电子设备以手机为例。
如图9A所示，在手机5的一个表面如下表面上设置两两之间相互垂直的三组阵列天线，包括如图9B所示的第一组阵列天线51、图9C所示的第二组阵列天线52和图9D所示的第三组阵列天线53，构成一直角坐标系，三组阵列天线分别对应于X、Y、Z轴。其中，第一组阵列天线51和第二组阵列天线52设置手机同一表面的相邻两条边上，第三组阵列天线53设置在所述相邻两条边的交界处，且垂直于所述表面或可转动到垂直于所述表面的位置，不使用时可以收起来。
如图9B-图9D所示，每一组阵列天线包括的所述多个天线阵元为在一直线上均匀分布的多个微带天线，构成所述直角坐标系统的坐标点。如第一组阵列天线51包括天线阵元x1,x2,…,x8；第二组阵列天线52包括天线阵元y1,y2,…,y8；第三组阵列天线53包括天线阵元z1,z2,…,z8。图中的天线阵元的个数仅为示例，每组阵列天线包括的天线阵元的数目可以根据定位精度的要求选择。
步骤320，开启所述电子标签阅读器，产生射频电磁场；
步骤330，感应到所述射频电磁场中存在电子标签时，采集各组阵列天线中各个天线阵元上产生的感应电压；
步骤340，根据所述感应电压确定所述电子标签的空间位置信息。
具体地，可以分别确定所述三组阵列天线中感应电压最大的三个天线阵元；将所述三个天线阵元的标识信息或对应的坐标位置作为所述空间位置信息。因为生物电子标签在射频电磁场中运动时，获得了感应电动势，进而将能量反馈回来，各个天线阵列分别获得感应电压，电子设备分别判断各组天线阵列的各个天线阵元引出的馈线上的电压。分别在X,Y,Z轴方向分布的三组天线中，每组必然各有一个天线阵元xn,yn,zn与该标签的垂直距离最近，接收到标签发出的信号最强，所以可以认为天线阵元xn,yn,zn即代表指纹电子标签的坐标值xn,yn,zn，即手指当前所在空间坐标值可以表示为(xn,yn,zn)。为了表示方便，坐标值也可以由天线阵元的标识如索引来代替，该索引可以在要确定具体空间位置时再转换为坐标值。
相应地，本实施例的电子设备包括用于对电子标签做空间定位的系统，如图10所示，所述系统包括：
阵列天线模块31，包括设置在所述电子设备上且成三维分布的至少三组阵列天线及相应的电路，每一组阵列天线包括在一个维度上延展的多个天线阵元。关于阵列天线可以参照上文的记载及图9A-图9D。
电子标签阅读器模块33，与所述各组阵列天线中各个天线阵元分别电连接，适用于在开启后，产生射频电磁场，并在感应到所述射频电磁场中存在电子标签时，采集各组阵列天线中各个天线阵元上产生的感应电压。
定位模块35，适用于根据所述感应电压确定所述电子标签的空间位置信息，如分别确定所述三组阵列天线中感应电压最大的三个天线阵元；将所述三个天线阵元的标识信息或对应的坐标位置作为所述空间位置信息。
实施例五
基于实施例四的对电子标签的空间定位的方法，可以将现有的用户在纸 张上的签名扩展到3D电子签名，并且可以使用手机类的终端来实现。
本实施例涉及一种3D电子签名的方法及相应的电子设备，如图11所示，所述方法包括：
步骤410，电子设备开启电子标签阅读器功能，产生射频电磁场；
步骤420，所述电子设备在签名过程中，使用实施例四所述对电子标签做空间定位的方法，对在所述射频电磁场中随用户书写而运动的电子标签做持续的空间定位；
本实施例中，所述电子标签位于手指上和/或由手指参与形成。在签名过程中，用户可以但不局限于书写文字，用户甚至可以创作书画作品。
步骤430，所述电子设备根据空间定位得到的空间位置信息确定空间书写轨迹，将所述空间书写轨迹作为此次采集的所述用户的3D签名笔迹。
较佳地，在签名过程中，可通过电子标签阅读器或电子设备中的处理器，在进行空间定位的同时还记录电子标签运动到每一个定位点的时间信息，与上述空间位置信息合成一个时空坐标(xn,yn,zn,tn)。据此可以计算电子标签/手指在射频电磁场中移动的位置、速度和方向，得到的速度和方向信息可以更为详尽地反应用户的书写习惯，可以用于做更为精确的笔迹鉴定。另外，还可以通过红外线感应器等设备加入手指形状、通过GPS或无线通讯基站加入地理位置等内容。
在金融交易、文件签署等应用场景中需要对使用上述步骤410、420、430获得的3D电子签名进行验证，因此需要预先保存一个经过认证的该用户的3D签名笔迹。具体地，在电子设备本地或认证机构进行签名认证，可以采用以下两种示例性的方式：
第一种方式：
电子标签使用用户人体实时参与形成的生物电子标签；
较佳地，所述生物电子标签为实施例一中的指纹电子标签贴合在用户手指上而形成的；所述指纹电子标签包括：一具有弹性的薄膜基板；由附着在所述薄膜基板上的导电层形成的一天线，所述天线包括一指纹区域，所述指 纹区域在所述指纹电子标签与手指贴合时形成印出指纹图案的一微带天线；及，覆盖在所述天线上并与所述薄膜基板贴合的一保护膜；但本发明不局限于此，如所述生物电子标签也可以是以用户的手指为天线，与用户的人体形成闭合回路而形成的；或者，所述生物电子标签是在用户手指上涂抹天线材质作为天线，与用户人体形成闭合回路而形成的，等等。
电子设备在签名过程中使用基于生物电子标签的身份验证方法对所述用户进行身份验证，如身份验证通过，将此次采集的所述用户的3D签名笔迹作为所述用户经过认证的3D签名笔迹保存，否则可以丢弃。
其中，基于生物电子标签的身份验证方法对所述用户进行验证的方法与实施例三类似，包括：
所述电子设备在签名过程中周期性地发射射频信号，并检测生物电子标签的响应；其中，一个周期包括多个时间片，在每一时间片上使用预期用户特定的频率-最小响应功率序列(可以从本地获取或从网络认证权威机构获取)中的一对频率-功率值设置射频信号的频率和发射功率，且所述频率-最小响应功率序列中的所有频率-功率值在一个周期内均被使用；
所述电子设备判断在签名过程中的每个时间片，是否都能检测到所述生物电子标签的空间位置信息，如是，则此次3D签名中的指纹信息认证通过，即认为身份验证通过。否则此次签名认证不通过。若签名中的指纹信息认证通过，则可以将此次采集的所述用户的3D签名笔迹作为所述用户经过认证的3D签名笔迹保存，否则丢弃。
第二种方式：
电子设备在签名过程中通过电子标签接收传感器实时采集的所述用户的生物特征信息，并在签名后，基于预先存储的所述用户经过认证的生物特征信息对接收的所述生物特征信息进行验证(相当于对用户做身份验证)，如验证通过，将此次采集的所述用户的3D签名笔迹作为所述用户经过验证的3D签名笔迹保存，否则可以丢弃。其中用户经过认证的生物特征信息可以由相应的权威机构或用户或其他方式采集得到，在签名认证过程，电子设备可以在本地或从网络认证权威机构获取到用户经过认证的生物特征信息。
这种方式不同于第一种方式，不是利用人体实时参与形成生物电子标签，而是通过传感器来实时采集用户的生物特征信息。生物特征的获取可以选用射频指纹传感器或其他指纹传感器，或静脉特征识别器，或温度传感器等等。传感器采集的生物特征信息可以直接传送给电子设备，或者通过手指上的电子标签转发给电子设备。
当然，得到用户经过验证的3D签名笔迹并不局限于以上两种方式，在确定是用户本人操作时(如具有相应权限)，可以直接将此次采集的所述用户的3D签名笔迹作为该用户经过认证的3D签名笔迹。但是，上述两种方式改变了这种传统的签名认证方式，使得认证更为方便和安全。用户经过认证的3D签名笔迹可以和用户特定的频率-最小响应功率序列一起，保存在电子设备本地或认证机构的网络服务器中的安全数据库的相应用户名下。
在金融交易、文件签署等应用场景中使用上述步骤410、420、430获得的用户的3D签名笔迹即为待验证的签名。具体地，验证的过程可以采用以下三种示例性的方式：
第一种方式
电子设备在签名后，基于预先存储的所述用户经过认证的3D签名笔迹对此次采集的所述用户的3D签名笔迹进行对比鉴定，如鉴定通过，则此次签名验证通过。对比鉴定可以在电子设备本地进行或者请求网络权威认证机构或其他机构进行，具体的笔迹鉴定方法不是本发明的内容。
第二种方式
电子标签使用用户人体实时参与形成的生物电子标签；
较佳地，所述生物电子标签为实施例一中的指纹电子标签贴合在用户手指上而形成的；所述指纹电子标签包括：一具有弹性的薄膜基板；由附着在所述薄膜基板上的导电层形成的一天线，所述天线包括一指纹区域，所述指纹区域在所述指纹电子标签与手指贴合时形成印出指纹图案的一微带天线；及，覆盖在所述天线上并与所述薄膜基板贴合的一保护膜；但本发明不局限于此，如所述生物电子标签也可以是以用户的手指为天线，与用户的人体形 成闭合回路而形成的；或者，所述生物电子标签是在用户手指上涂抹天线材质作为天线，与用户人体形成闭合回路而形成的，等等。
电子设备在签名过程中使用基于生物电子标签的身份验证方法对所述用户进行身份验证，如身份验证通过，再基于预先存储的所述用户经过认证的3D签名笔迹对此次采集的所述用户的3D签名笔迹进行对比鉴定，如鉴定通过，则此次签名验证通过。如身份验证不通过或者鉴定不通过，则此次签名验证不通过。
其中，基于生物电子标签的身份验证方法对所述用户身份进行验证的方法与实施例三类似，包括：
所述电子设备在签名过程中周期性地发射射频信号，并检测生物电子标签的响应；其中，一个周期包括多个时间片，在每一时间片上使用预期用户特定的频率-最小响应功率序列中的一对频率-功率值设置射频信号的频率和发射功率，且所述频率-最小响应功率序列中的所有频率-功率值在一个周期内均被使用；
所述电子设备判断在签名过程中的每个时间片，是否都能检测到所述生物电子标签的空间位置信息，如是，则身份(指纹信息)验证通过，否则此次签名验证整个都不通过。若签名中的身份(指纹信息)验证通过，则可以进一步将同时获得的签名笔迹与本地或由网络权威认证机构基于预先存储的所述用户经过认证的3D签名笔迹进行对比鉴定，判断签名验证是否通过。
使用实施例三基于生物电子标签的身份验证方法对所述用户进行验证的过程是利用用户特定的频率-最小响应功率序列来设置电子标签阅读器的发射频率和功率，即在手指签名动作的整个过程中，电子标签阅读器都保持实施例三中所描述的频率-最小响应功率值周期性切换模式，若签名过程中的每个时间片都检测到了手指的坐标位置，则表明身份(指纹)验证通过。所以身份(指纹)验证过程和电子标签的定位过程(即获得的签名笔迹)完全有机地融合在一起，不需要分别进行验证。如果指纹验证没有通过，签名验证必然不能通过；而若能得到完整的签名笔迹，即可表明指纹是合法的，可以进一步鉴定签名笔迹。
第三种方式
所述电子设备在签名过程中通过所述电子标签接收传感器实时采集的所述用户的生物特征信息，并在签名后，基于预先存储的所述用户经过认证的生物特征信息对接收的所述生物特征信息进行验证，如验证通过，再基于所述用户经过认证的3D签名笔迹对此次采集的所述用户的3D签名笔迹进行对比鉴定，如鉴定通过，则此次签名验证通过。其中，上述传感器实时采集的所述用户的生物特征信息包括指纹信息、手指静脉信息和温度信息中的一种或多种。
在完成上述签名后，还可以将此次采集的所述用户的3D签名笔迹以图像和/或视频的方式保存在可收藏的实体上。
相应地，本发明提供的电子设备可实现3D电子签名，如图12所示，包括：
实施例四中对电子标签做空间定位的系统41，适用于在签名过程中，对在所述射频电磁场中随用户书写而运动的电子标签做持续的空间定位。较佳地，该系统在签名过程中，在进行空间定位的同时还记录电子标签运动到每一个定位点的时间信息，以确定所述电子标签在射频电磁场中移动的位置、速度和方向。
签名生成模块43，适用于根据空间定位得到的空间位置信息确定空间书写轨迹，将所述空间书写轨迹作为此次采集的所述用户的3D签名笔迹。
进一步地，上述签名可以预先保存，作为经过认证的用户3D签名笔迹，此时：
所述电子设备还包括：
基于生物电子标签进行身份验证的系统：适用于在签名过程中，对所述用户进行身份验证，如身份验证通过，通知签名存储模块；
签名存储模块，适用于在收到所述通知后，将此次采集的所述用户的3D签名笔迹作为所述用户经过认证的3D签名笔迹保存；
或者
所述电子设备还包括：
生物特征验证模块，适用于在签名过程中，通过所述电子标签接收传感器实时采集的所述用户的生物特征信息，并在签名后，基于预先存储的所述用户经过验证的生物特征信息对接收的所述生物特征信息进行验证，如验证通过，通知签名存储模块；
签名存储模块，适用于在收到所述通知后，将此次采集的所述用户的3D签名笔迹作为所述用户经过认证的3D签名笔迹保存。
上述签名还可以作为待验证的签名而加以验证，此时：
所述电子设备还包括：
签名验证模块，适用于在签名后，基于预先存储的所述用户经过认证的3D签名笔迹对此次采集的所述用户的3D签名笔迹进行对比鉴定，如鉴定通过，则此次签名验证通过；
或者，所述电子设备还包括：
基于生物电子标签进行身份验证的系统，适用于在签名过程中，对所述用户进行身份验证，如身份验证通过，通知签名验证模块；
签名验证模块，适用于在收到所述通知后，基于预先存储的所述用户经过认证的3D签名笔迹对此次采集的所述用户的3D签名笔迹进行对比鉴定，如鉴定通过，则此次签名验证通过；
或者，所述电子设备还包括：
生物特征验证模块，适用于在签名过程中，通过所述电子标签接收传感器实时采集的所述用户的生物特征信息，并在签名后，基于预先存储的所述用户经过认证的生物特征信息对接收的所述生物特征信息进行验证，如验证通过，通知签名验证模块；
签名验证模块，适用于在收到所述通知后，基于预先存储的所述用户经过认证的3D签名笔迹对此次采集的所述用户的3D签名笔迹进行对比鉴定，如鉴定通过，则此次签名验证通过。
上述实施例三中基于生物电子标签进行身份验证的系统与实施例三中的系统类似，包括：
电子标签阅读器模块，适用于在开启后，在签名过程中周期性地发射射 频信号，并检测生物电子标签的响应；其中，一个周期包括多个时间片，在每一时间片上使用预期用户特定的频率-最小响应功率序列中的一对频率-功率值设置射频信号的频率和发射功率，且所述频率-最小响应功率序列中的所有频率-功率值在一个周期内均被使用；
验证判决模块，适用于判断在签名过程中的每个时间片，是否都能检测到所述生物电子标签的空间位置信息，如是，表示生物特征(指纹)吻合，即身份验证通过。可以由签名验证模块继续处理。
基于上述3D签名方案，用户可以用手指在空中进行书写，将空间书写轨迹(特征书写习惯)与指纹甚至其他生物特性融合，加以数字化，并与整个书写轨迹融合在一起，生成新型的3D亲手签名。在空中书写，增加了维度，且不留痕迹，难于模仿。所述指纹不是与签名分开保存，而是与签名手迹天然实时结合在一起，所以可以保证更高的安全性。签名一次实时完成，对于使用者来说即自然方便，又符合传统习惯。免于取指纹、传统手写签名、盖章分别进行。上述方法可用于证书合同文件等的签署、电子钱包、在线支付、手机和电脑解锁、门禁等应用场景中的签名确认环节，以最接近自然和传统的方式增强交易和信息安全保障；也可用于签名售书、名人笔迹、甚至书画创作及收藏等应用场景。特别是，结合3D全息影像技术，还可实现3D人机界面交互。
实施例六
在配置了3D全息影像技术的电子设备上将3D全息影像空间与电子设备产生的射频电磁场空间重合，使用上述电子标签空间定位技术，还可实现3D人机界面交互。
本实施例的3D人机交互的方法及电子设备，如图13所示，所述方法包括：
步骤510，电子设备开启电子标签阅读器功能，产生射频电磁场，同时电子设备开启3D全息影像空间显示功能；
步骤520，所述电子设备在3D人机交互过程中，使用对电子标签做空间定位的方法，对在所述射频电磁场中随用户肢体运动的电子标签做持续的空间定位；
上述对电子标签做空间定位的方法可以采用实施例四中的方法。
步骤530，所述电子设备根据空间定位得到的空间位置信息确定所述用户肢体在射频电磁场中的运动轨迹；
步骤540，将所述射频电磁场中的运动轨迹转换为3D全息影像空间中的运动轨迹，据此确定所述用户的操作。
本步骤中，可以将电子设备上设置的三组阵列天线构成的直角坐标系作为3D全息影像空间的三维空间坐标系，将所述电子标签在所述直角坐标系中的运动轨迹作为所述3D全息影像空间中的运动轨迹。
如图14所示，其中的实线扁立方体代表手机5101，在手机5101的一表面的XYZ方向分布有三组阵列天线5102、5103、5104，虚线立方体区域5105即为3D影像空间和电磁场空间天然重合的部分，也即是3D人机交互的有效空间。此时，3D全息影像的三维空间坐标系即为步骤310-340所述的天线阵列所标识的三维直角坐标系。计算此空间坐标系中手指所在位置的坐标是否落入3D全息影像的某个热点或控件所在的空间坐标范围，即可判断，智能终端设备(如手机等)是否应该响应手指的动作，此即为3D人机交互。
本实施例可以采用所述用户的人体实时参与形成的生物电子标签。此时，所述方法还包括：所述电子设备在3D人机交互过程中，使用基于生物电子标签的身份验证方法对所述用户进行身份验证，如身份验证通过，接受所述用户的操作，如身份验证不通过，不接受所述用户的操作。身份验证不通过时，可以视所述用户为非法用户，停止所述3D人机交互过程。
这种在3D交互过程(及前一实施例的3D签名过程)中进行身份验证的方法，将身份验证有机地与用户操作结合在一起，无需另行的处理，非常方便并且安全性高，具有很好的应用价值。
上述基于生物电子标签的身份验证方法与实施例三类似，包括：
所述电子设备在3D人机交互过程中周期性地发射射频信号，并检测生 物电子标签的响应；其中，一个周期包括多个时间片，在每一时间片上使用预期用户特定的频率-最小响应功率序列中的一对频率-功率值设置射频信号的频率和发射功率，且所述频率-最小响应功率序列中的所有频率-功率值在一个周期内均被使用；
所述电子设备判断在3D人机交互过程中的每个时间片，是否都能检测到所述生物电子标签的空间位置信息，如是，则验证通过，如否，则验证不通过。
较佳地，上述生物电子标签为指纹电子标签贴合在用户手指上而形成的；所述指纹电子标签包括：一具有弹性的薄膜基板；由附着在所述薄膜基板上的导电层形成的一天线，所述天线包括一指纹区域，所述指纹区域在所述指纹电子标签与手指贴合时形成印出指纹图案的一微带天线；及，覆盖在所述天线上并与所述薄膜基板贴合的一保护膜。但本发明不局限于此，如，所述生物电子标签也可以是以用户的手指为天线，与用户的人体形成闭合回路而形成的；或者，所述生物电子标签是在用户手指上涂抹天线材质作为天线，与用户人体形成闭合回路而形成的，等等。
相应地，本实施例的电子设备用于3D人机交互，如图15所示，包括：
实施例四中对电子标签做空间定位的系统51，适用于在3D人机交互过程中，对在所述射频电磁场中随用户肢体运动的电子标签做持续的空间定位；
操作识别模块53，适用于根据空间定位得到的空间位置信息确定所述用户肢体在射频电磁场中的运动轨迹，将所述运动轨迹转换为3D全息影像空间中的运动轨迹，据此识别所述用户的操作。
对电子标签做空间定位的系统采用三组阵列天线构成直角坐标系统时，可以将所述电子设备上设置的三组阵列天线构成的直角坐标系作为所述3D全息影像空间的三维空间坐标系，将所述电子标签在所述直角坐标系中的运动轨迹作为所述3D全息影像空间中的运动轨迹。
本实施例的电子设备还可以包括：基于生物电子标签进行身份验证的系统，用于在3D人机交互过程中，对所述用户进行身份验证，如身份验证通 过，接受所述用户的操作，如身份验证不通过，不接受所述用户的操作。
所述基于生物电子标签进行身份验证的系统与实施例三类似，包括：
电子标签阅读器模块，适用于在开启后，在3D人机交互过程中周期性地发射射频信号，并检测生物电子标签的响应；其中，一个周期包括多个时间片，在每一时间片上使用预期用户特定的频率-最小响应功率序列中的一对频率-功率值设置射频信号的频率和发射功率，且所述频率-最小响应功率序列中的所有频率-功率值在一个周期内均被使用；
验证判决模块，适用于判断在3D人机交互过程中的每个时间片，是否都能检测到所述生物电子标签的空间位置信息，如是，则身份验证通过，如否，则身份验证不通过。
本发明实施例中提出的电子设备中的电子标签阅读器模块、特征提取控制模块、电子标签阅读器模块、验证判决模块都可以通过处理器来实现，当然也可通过具体的逻辑电路实现；其中所述处理器可以是终端上的处理器，在实际应用中，处理器可以为中央处理器(CPU)、微处理器(MPU)、数字信号处理器(DSP)或现场可编程门阵列(FPGA)等。
本发明实施例中，如果以软件功能模块的形式实现上述方法，并作为独立的产品销售或使用时，也可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明实施例的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机、服务器、或者网络设备等)执行本发明各个实施例所述方法的全部或部分。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read Only Memory，ROM)、磁碟或者光盘等各种可以存储程序代码的介质。这样，本发明实施例不限制于任何特定的硬件和软件结合。
相应地，本发明实施例还提供一种计算机存储介质，该计算机存储介质中存储有计算机程序，该计算机程序用于执行本发明实施例的上述方法。
以上所述仅为本发明的较佳实施例而已，并非用于限定本发明的保护范围。
工业实用性
本发明实施例提供了基于生物电子标签的特征提取、验证方法及其设备、标签，该指纹电子标签利用具有弹性的薄膜基板和附着在所述薄膜基板上的导电层形成的天线，通过所述指纹电子标签与手指贴合时形成印出指纹图案的微带天线与人体指纹之间具有特殊的对应关系，将上述指纹电子标签佩载在手指上，可形成用户人体实时参与形成的生物电子标签，可以提高生物特征信息的安全性和验证的可靠性。

Claims (15)

  1. 一种指纹电子标签，包括：
    一具有弹性的薄膜基板；
    由附着在所述薄膜基板上的导电层形成的一天线，所述天线包括一指纹区域，所述指纹区域在所述指纹电子标签与手指贴合时形成印出指纹图案的一微带天线；
    覆盖在所述天线上并与所述薄膜基板贴合的一保护膜。
  2. 如权利要求1所述的指纹电子标签，其中：
    所述天线为一环形天线，所述环形天线的局部变形为所述指纹区域。
  3. 如权利要求1或2所述的指纹电子标签，其中：
    所述生物电子标签还包括封装在所述薄膜基板和保护膜之间并与所述天线电连接的一芯片。
  4. 如权利要求1或2所述的指纹电子标签，其中：
    所述薄膜基板为一自粘性薄膜基板，其未附着导电层的表面具有粘性，所述指纹区域位于所述薄膜基板的中部。
  5. 一种基于生物电子标签的生物特征提取方法，包括：
    电子设备开启电子标签阅读器功能，发射射频信号；
    所述电子设备基于设定的多个频率中的每一频率，对射频电磁场内的生物电子标签做以下测试：以所述每一频率发射射频信号并逐次改变所述射频信号的发射功率，确定能够检测到所述生物电子标签响应的最小发射功率，得到一对频率-功率值；其中，所述生物电子标签为用户的人体实时参与形成的电子标签；
    所述电子设备将所述测试得到的所有频率-功率值组成所述用户特定的频率-最小响应功率序列，作为所述用户的生物特征信息保存。
  6. 如权利要求5所述的方法，还包括：
    所述电子设备读取所述生物电子标签的标识信息，将所述标识信息和所述用户特定的频率-最小响应功率序列对应保存。
  7. 如权利要求5或6所述的方法，其中：
    所述生物电子标签为将如权利要求1或2或3或4所述的指纹电子标签贴合在所述用户的手指上而形成的；或者
    所述生物电子标签是以用户的手指为天线，与用户的人体形成闭合回路而形成的；或者
    所述生物电子标签是在用户的手指上涂抹天线材质作为天线，与用户人体形成闭合回路而形成的。
  8. 一种电子设备，包括基于生物电子标签提取生物特征的系统，所述系统包括：
    电子标签阅读器模块，设置为在开启后，基于设定的多个频率中的每一频率，对射频电磁场内的生物电子标签做以下测试：以所述每一频率发射射频信号，并逐次改变所述射频信号的发射功率，确定能够检测到所述生物电子标签响应的最小发射功率，得到一对频率-功率值；其中，所述生物电子标签为用户的人体实时参与形成的电子标签；
    特征提取控制模块，设置为配置所述频率和功率，控制所述电子标签阅读器模块完成所述测试，及将所述测试得到的所有频率-功率值组成所述用户特定的频率-最小响应功率序列，作为所述用户的生物特征信息保存。
  9. 如权利要求8所述的电子设备，其中：
    所述电子标签阅读器模块还设置为读取所述生物电子标签的标识信息；
    所述特征提取控制模块保存所述用户特定的频率-最小响应功率序列时，将所述标识信息对应保存。
  10. 一种基于生物电子标签的身份验证方法，包括：
    电子设备开启电子标签阅读器功能；
    所述电子设备周期性地发射射频信号，并检测生物电子标签的响应，所述生物电子标签为待验证用户的人体实时参与形成的电子标签；其中，一个周期包括多个时间片，在每一时间片上使用预期用户特定的频率-最小响应功率序列中的一对频率-功率值设置射频信号的频率和发射功率，且所述频率-最小响应功率序列中的所有频率-功率值在一个周期内均被使用；
    所述电子设备判断在至少一个周期长的验证过程中，是否持续检测到所述生物电子标签的响应，如是，则验证通过，即确定所述待验证用户为所述预期用户。
  11. 如权利要求10所述的方法，其中：
    在所述电子设备周期性地发射射频信号之前，还包括：读取所述生物电子标签的标识信息，根据所述标识信息查找到对应的用户特定的频率-最小响应功率序列，将查找到的频率-最小响应功率序列作为所述预期用户特定的频率-最小响应功率序列。
  12. 如权利要求10或11所述的方法，其中：
    所述生物电子标签为将如权利要求1或2或3或4所述的指纹电子标签贴合在用户手指上而形成的；或者
    所述生物电子标签是以用户的手指为天线，与用户的人体形成闭合回路而形成的；或者
    所述生物电子标签是在用户手指上涂抹天线材质作为天线，与用户人体形成闭合回路而形成的。
  13. 一种电子设备，包括基于生物电子标签进行身份验证的系统，所述系统包括：
    电子标签阅读器模块，设置为在开启后，周期性地发射射频信号，并检测生物电子标签的响应，所述生物电子标签为待验证用户的人体实时参与形成的电子标签；其中，一个周期包括多个时间片，在每一时间片上使用预期用户特定的频率-最小响应功率序列中的一对频率-功率值设置射频信号的频率和发射功率，且所述频率-最小响应功率序列中的所有频率-功率值在一个周期内均被使用；
    验证判决模块，设置为判断在至少一个周期长的验证过程中，是否持续检测到所述生物电子标签的响应，如是，则验证通过，即确定所述待验证用户为所述预期用户。
  14. 如权利要求13所述的电子设备，其中：
    所述电子标签阅读器模块还设置为在周期性地发射射频信号之前，读取 所述生物电子标签的标识信息，根据所述标识信息查找到对应的用户特定的频率-最小响应功率序列，将查找到的频率-最小响应功率序列作为所述预期用户特定的频率-最小响应功率序列。
  15. 一种计算机程序存储介质，所述计算机程序存储介质存储有计算机可执行指令，当该计算机可执行指令被电子设备执行时，使得该设备可执行权利要求5-7和10-12任一项所述的方法。
PCT/CN2015/072582 2014-11-13 2015-02-09 基于生物电子标签的特征提取、验证方法、设备、标签及存储介质 WO2015184851A1 (zh)

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