CN104042220A - Device and method for detecting living body fingerprint - Google Patents
Device and method for detecting living body fingerprint Download PDFInfo
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- CN104042220A CN104042220A CN201410229352.4A CN201410229352A CN104042220A CN 104042220 A CN104042220 A CN 104042220A CN 201410229352 A CN201410229352 A CN 201410229352A CN 104042220 A CN104042220 A CN 104042220A
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Abstract
The invention relates to a fingerprint detecting technology, and discloses a device and a method for detecting a living body fingerprint. The device for detecting the living body fingerprint comprises a fingerprint detecting unit, a living body detecting unit and a verifying unit, wherein the fingerprint detecting unit is used for detecting fingerprint information of a detected body; the living body detecting unit is used for detecting living body characteristic information of the detected body, and the living body characteristic information is unique living body information of the detected body; the verifying unit is used for comparing the detected characteristic information of the detected body with registration , which is registered in advance, information of the detected body, the verifying can be passed if the characteristic information is consistent with the registration information, and the characteristic information comprises the fingerprint information and the living body characteristic information. According to the device and the method for detecting the living body fingerprint, disclosed by the invention, compared with the prior art, as the living body fingerprint detecting device simultaneously comprises the fingerprint detecting unit and the living body detecting unit, and the unique living body characteristic information of the detected body is detected while the fingerprint information is detected, the authentication carried out through fingerprint detection can be safer and more reliable.
Description
Technical field
The present invention relates to fingerprint detection technology, particularly a kind of living body finger print checkout gear and method.
Background technology
At present, to personal information differentiate and the biological characteristic identified normally by physiological feature (such as, hair, fingerprint, blood etc.) realize.At this wherein, fingerprint is the most reliable feature.Yet, although its characteristic is original in style, but by extracting residual fingerprint, the consistent fingerprint sleeve of the fingerprint lines with extracting that the materials such as recycling gelatin, silica gel or rubber are made into, fingerprint sleeve is worn over and is pointed on upper or prosthetic finger, the fingerprint recognition system of can out-tricking, like this, has formed great potential safety hazard to fingerprint recognition system.
Summary of the invention
The object of the present invention is to provide a kind of living body finger print checkout gear and method, when detecting finger print information, detect the distinctive live body characteristic information of subject, make to carry out authentication by fingerprint detection safer, more reliable.
For solving the problems of the technologies described above, the invention provides a kind of living body finger print checkout gear, comprise: fingerprint detection unit, live body detecting unit and authentication unit;
Described fingerprint detection unit, for detection of the finger print information of subject;
Described live body detecting unit, for detection of the live body characteristic information of described subject, wherein, described live body characteristic information is the peculiar biological information of described subject;
Described authentication unit, for the log-on message of the characteristic information of the described subject detecting and described subject registered in advance is compared, if consistent, is verified; Wherein, described characteristic information comprises described finger print information and described live body characteristic information.
The present invention also provides a kind of method for detecting living body fingerprint, comprises following steps:
Finger print information by fingerprint detection unit inspection subject;
By live body detecting unit, detected the live body characteristic information of described subject, wherein, described live body characteristic information is the peculiar biological information of described subject;
The log-on message of the characteristic information of the described subject relatively being detected by authentication unit and described subject registered in advance, if consistent, is verified; Wherein, described characteristic information comprises described finger print information and described live body characteristic information.
Embodiment of the present invention in terms of existing technologies, except comprising fingerprint detection unit, also comprises live body detecting unit.When the finger print information of fingerprint detection unit inspection subject, live body detecting unit detects the live body characteristic information of subject, wherein, live body characteristic information is the same with finger print information is the characteristic information that this subject is peculiar, be different from other subjects, and, can show that this subject is the live body with vital signs, rather than the non-living body of no signs of life; Authentication unit together compares the finger print information of the subject detecting and live body characteristic information with the log-on message of subject registered in advance, wherein, and the finger print information that log-on message comprises subject and live body characteristic information; If the finger print information of subject all mates with log-on message with live body characteristic information, be verified, show it is the subject with this vital signs.Owing to detecting and verifying finger print information and the live body characteristic information of subject simultaneously, and finger print information and live body characteristic information are the peculiar information of this subject, so avoided utilizing false fingerprint to carry out the fraudulent mean of authentication, made to carry out authentication by fingerprint detection safer, more reliable.
In addition, the information that described live body characteristic information comprises ElectrocardiographicFrequency Frequency Spectrum.Owing to thering is the heart of the subject of vital signs, must be to beat according to exclusive rule, and this has beating of unique rule and can reflect by ElectrocardiographicFrequency Frequency Spectrum, utilize ElectrocardiographicFrequency Frequency Spectrum both can characterize the identity of subject as live body characteristic information, can show that again subject is live body, safe and reliable.
In addition, described live body detecting unit comprises: signal projector, signal receiver and processor; Described signal projector is used for launching incoming signal; Described signal receiver is for receiving the reflected signal being reflected by the finger of described subject when described incoming signal runs into the finger of described subject and exporting described processor to; Described processor obtains the live body characteristic information of described subject according to described incoming signal and described reflected signal.The incoming signal that live body detecting unit can be launched by the processing reflected signal that the finger of subject reflects when receiving incoming signal and run into the finger of subject obtains the live body characteristic information of subject, has guaranteed the feasibility of embodiment of the present invention.
In addition, described signal projector is light emitting diode, and described signal receiver is photodiode; Described light emitting diode is used for launching incident optical signal; Described photodiode is for receiving the reflected light signal being reflected by the finger of described subject when described incident optical signal runs into the finger of described subject and exporting described processor to; Described processor obtains the live body characteristic information of described subject according to described incident optical signal and described reflected light signal.The reflected light signal that the finger of the incident optical signal of launching by processing and reception subject reflects can obtain the live body characteristic information of subject, and, light emitting diode and photodiode are all devices of existing maturation, have guaranteed the feasibility of embodiment of the present invention.
In addition, also comprise contact detection unit; Described contact detection unit is for detection of the touch of described subject, and when the touch that described subject detected, activates described fingerprint detection unit and described biological information detecting unit.Fingerprint detection unit and biological information detecting unit when not being touched detecting unit and activating always in resting state, consumed energy not; Contact detection unit only just activates fingerprint detection unit and biological information detecting unit when the contact that subject detected, as long as no the contact of subject, fingerprint detection unit and biological information detecting unit are all in resting state, like this, can save energy, prolongs standby time; Meanwhile, can reduce the working loss of fingerprint detection unit and biological information detecting unit, extend its service life.
Accompanying drawing explanation
Fig. 1 is the living body finger print structure of the detecting device schematic diagram according to first embodiment of the invention;
Fig. 2 is the living body finger print structure of the detecting device schematic diagram according to second embodiment of the invention;
Fig. 3 is the living body finger print structure of the detecting device schematic diagram according to third embodiment of the invention;
Fig. 4 is the living body finger print structure of the detecting device schematic diagram according to four embodiment of the invention;
Fig. 5 is the living body finger print structure of the detecting device schematic diagram according to fifth embodiment of the invention;
Fig. 6 is the living body finger print detecting method flow chart according to seventh embodiment of the invention;
Fig. 7 is the living body finger print detecting method flow chart according to tenth embodiment of the invention.
The specific embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, the embodiments of the present invention are explained in detail.Yet, persons of ordinary skill in the art may appreciate that in each embodiment of the present invention, in order to make reader understand the application better, many ins and outs have been proposed.But, even without these ins and outs and the many variations based on following embodiment and modification, also can realize each claim of the application technical scheme required for protection.
The first embodiment of the present invention relates to a kind of living body finger print checkout gear, specifically as shown in Figure 1, comprises: fingerprint detection unit, live body detecting unit and authentication unit.
Specifically, fingerprint detection unit, for detection of the finger print information of subject.Finger print information detection technique is the technology of existing maturation, does not repeat them here.
Live body detecting unit, for detection of the live body characteristic information of subject, wherein, live body characteristic information is the peculiar biological information of subject.That is to say, live body characteristic information is the same with finger print information is the characteristic information that subject is peculiar, be different from other subjects, and, can show that this subject is the live body with vital signs, rather than the non-living body of no signs of life.
In the present embodiment, live body characteristic information can be for comprising the information of ElectrocardiographicFrequency Frequency Spectrum.Owing to thering is the heart of the subject of vital signs, must be to beat according to exclusive rule, and this have beating of unique rule and can reflect by ElectrocardiographicFrequency Frequency Spectrum.Utilize ElectrocardiographicFrequency Frequency Spectrum both can characterize the identity of subject as live body characteristic information, can show that again subject is live body, safe and reliable.
Specifically, there is the heart of subject of vital signs when beating according to exclusive rule, the blood flow situation of subject carries the information of heartbeat, live body detecting unit can obtain the ElectrocardiographicFrequency Frequency Spectrum of subject by acral (such as the finger) of subject, for detection of subject, whether has vital signs.And the ElectrocardiographicFrequency Frequency Spectrum of each subject is unique, the same with fingerprint, can characterize uniquely the identity of subject, meanwhile, can also show that subject is live body.
It should be noted that, live body characteristic information also can comprise the biological information that other can characterize subject identity, as blood oxygen concentration, organism electrical impedance etc., at this, will not enumerate.
Authentication unit, for the log-on message of the characteristic information of the subject detecting and subject registered in advance is compared, if consistent, is verified; Wherein, characteristic information comprises finger print information and live body characteristic information.
Specifically, only have the finger print information of subject all to mate with log-on message with live body characteristic information, checking is just passed through, and just can show it is the subject with the vital signs in log-on message.Once wherein any one is not mated with the information in log-on message, authentication failed.Owing to detecting and verifying finger print information and the live body characteristic information of subject simultaneously, and because finger print information and live body characteristic information are the peculiar information of this subject, so avoided utilizing false fingerprint to carry out the fraudulent mean of authentication, because while using false fingerprint to carry out authentication, only have finger print information to mate with the finger print information in log-on message, and live body characteristic information is unmatched, so can not be by authentication.Like this, utilize living body finger print checkout gear to make to carry out authentication by fingerprint detection safer, more reliable.
Living body finger print checkout gear in present embodiment can be applicable to electronic equipment (such as mobile phone, panel computer etc.), also can be applicable to gate control system, and higher equipment, system and the occasion of other level of securitys, with the identity to subject, verifies.
Compared with prior art, except comprising fingerprint detection unit, also comprise live body detecting unit.When the finger print information of fingerprint detection unit inspection subject, live body detecting unit detects the live body characteristic information of subject, wherein, live body characteristic information is the same with finger print information is the characteristic information that this subject is peculiar, be different from other subjects, and, can show that this subject is the live body with vital signs, rather than the non-living body of no signs of life; Authentication unit together compares the finger print information of the subject detecting and live body characteristic information with the log-on message of subject registered in advance, wherein, and the finger print information that log-on message comprises subject and live body characteristic information; If the finger print information of subject all mates with log-on message with live body characteristic information, be verified, show it is the subject with this vital signs.Owing to detecting and verifying finger print information and the live body characteristic information of subject simultaneously, and finger print information and live body characteristic information are the peculiar information of this subject, so avoided utilizing false fingerprint to carry out the fraudulent mean of authentication, made to carry out authentication by fingerprint detection safer, more reliable.
The second embodiment of the present invention relates to a kind of living body finger print checkout gear, specifically as shown in Figure 2.The second embodiment has been done further refinement on the basis of the first embodiment, has provided the concrete structure of live body detecting unit.In second embodiment of the invention, live body detecting unit comprises: signal projector, signal receiver and processor, processor obtains the live body characteristic information of subject according to the reflected signal being reflected by subject of the incoming signal of signal projector transmitting and signal receiver reception, guaranteed the feasibility of present embodiment.
In Fig. 2,201 is fingerprint detection unit, and 202 is signal projector, and 203 is signal receiver, and 204 is processor, and 205 is living body finger print checkout gear.In the present embodiment, signal projector and signal receiver are arranged at the both sides of fingerprint detection unit symmetrically.
Specifically, signal projector is used for launching incoming signal.The built-in signal projector of live body detecting unit transmitting incoming signal, to survey the finger of subject, and as reference signal for contrasting.
Signal receiver is for receiving the reflected signal being reflected by the finger of subject when incoming signal runs into the finger of subject and exporting processor to.Although the movable amplitude of the finger surface of subject is very faint,, still can utilize incoming signal to survey.When incoming signal runs into the finger of subject, the live body characteristic information of subject has been carried in the change of being pointed the state generation of the reflected signal reflecting.Signal receiver receives the reflected signal being reflected by the finger of subject, for contrasting with above-mentioned incoming signal, obtains the live body characteristic information of subject.
Processor obtains the live body characteristic information of subject according to incoming signal and reflected signal.Processor is processed above-mentioned incoming signal and reflected signal, just can obtain the live body characteristic information of subject.
In the present embodiment, provide the concrete structure that detects the live body detecting unit of live body characteristic information, guaranteed the feasibility of embodiment of the present invention.
The 3rd embodiment of the present invention relates to a kind of living body finger print checkout gear, specifically as shown in Figure 3.The 3rd embodiment has been done further refinement on the basis of the second embodiment, has provided the specific implementation of live body detecting unit.In third embodiment of the invention, signal projector is light emitting diode, and signal receiver is photodiode; The reflected light signal that the finger of the incident optical signal of launching by processing and reception subject reflects can obtain the live body characteristic information of subject, and, light emitting diode and photodiode are all devices of existing maturation, have guaranteed the feasibility of embodiment of the present invention.
As shown in Figure 3, in the present embodiment, live body detecting unit is arranged at the periphery of fingerprint detection unit, wherein, live body detecting unit comprises signal projector and signal receiver, and signal projector and signal receiver are arranged at the periphery of fingerprint detection unit symmetrically.
Specifically, signal projector is light emitting diode, and light emitting diode is used for launching incident optical signal, to survey the finger of subject, and as reference signal for contrasting.In the present embodiment, incident optical signal can be visible ray or infrared light.
Signal receiver is photodiode, and photodiode is for receiving the reflected light signal being reflected by the finger of subject when incident optical signal runs into the finger of subject and carrying out exporting processor to after opto-electronic conversion.Specifically, when incident optical signal runs into the finger of subject, the state of being pointed the reflected light signal reflecting has carried the live body characteristic information of subject.Photodiode receives the reflected light being reflected by the finger of subject and is converted to the signal of telecommunication, for processor adopting.
Processor obtains the live body characteristic information of subject according to incident optical signal and reflected light signal.Namely, by processing above-mentioned incident optical signal and reflected light signal, can obtain the live body characteristic information of subject.And light emitting diode and photodiode are all devices of existing maturation, guaranteed the feasibility of embodiment of the present invention.
In the actual product of present embodiment, the exiting surface of live body detecting unit and the encapsulation of incidence surface can adopt transparent material.When live body detecting unit detects the live body characteristic information of subject by transmitting and receiving optical signal, transparent material can reduce the decay of light signal strength, increases the reliability of live body detecting unit.
Four embodiment of the invention relates to a kind of living body finger print checkout gear, specifically as shown in Figure 4.The 4th embodiment has been done further improvement on the basis of the first embodiment, and main improvements are: in the 4th embodiment, also comprise contact detection unit; Contact detection unit only just activates fingerprint detection unit and biological information detecting unit when the contact that subject detected, like this, can save energy, prolongs standby time; Meanwhile, can reduce the working loss of fingerprint detection unit and biological information detecting unit, extend its service life.
Specifically, contact detection unit is for detection of the touch of subject, and when the touch that subject detected, activates fingerprint detection unit and biological information detecting unit.Fingerprint detection unit and biological information detecting unit when not being touched detecting unit and activating always in resting state, consumed energy not; And contact detection unit only just activates fingerprint detection unit and biological information detecting unit when the contact that subject detected, as long as no the contact of subject, fingerprint detection unit and biological information detecting unit are all in resting state, like this, can save energy, prolongs standby time; Meanwhile, can reduce the working loss of fingerprint detection unit and biological information detecting unit, extend its service life.
In the present embodiment, contact detection unit is arranged at the periphery of fingerprint detection unit, and nearer apart from fingerprint detection unit.Only have and touch fingerprint detection unit or when nearer apart from fingerprint detection unit, contact detection unit just can detect user's contact, like this, can effectively distinguish that whether user will carry out authentication, avoids maloperation as user.
The 5th embodiment of the present invention relates to a kind of living body finger print checkout gear, specifically as shown in Figure 5.The 5th embodiment has been done further refinement on the basis of the 4th embodiment, has provided the concrete structure of contact detection unit.In fifth embodiment of the invention, contact detection unit comprises: contact type sensor, state detector and driver; When contact type sensor senses the touch of subject, wake driver up and produce driving signal, to activate fingerprint detection unit and biological information detecting unit, guaranteed the feasibility of present embodiment.
In Fig. 5,501 is contact type sensor, and state detector and driver are all not shown.In the present embodiment, contact type sensor is closely arranged at the periphery of fingerprint detection unit, and is arranged between the signal projector 202, signal receiver 203 of fingerprint detection unit 201 and live body detecting unit.Owing to only having contact type sensor in contact detection unit, be for detecting the touch of subject, so, in limited space, the device that effective detection subject touches is only set, can reduce the difficulty of processing technology.And contact type sensor is closely arranged at the periphery of fingerprint detection unit, can effectively distinguish that whether user will carry out authentication, avoids maloperation.
Contact type sensor state when the contact that subject detected changes.When subject touches, contact type sensor state changes.State detector, when the state that contact type sensor detected changes, shows to exist the touch of subject, just activates driver.Driver produces and drives signal to activate fingerprint detection unit and biological information detecting unit.
In the present embodiment, provide the concrete structure of contact detection unit, proved the feasibility of present embodiment.
The 6th embodiment of the present invention relates to a kind of living body finger print checkout gear.The 6th embodiment has been done further refinement on the basis of the 5th embodiment, has provided the specific implementation of contact detection unit.In sixth embodiment of the invention, contact type sensor is capacitance sensor, and state detector is potentiometry device; By capacitance sensor, detect the touch of subject, and the variation when the touch that subject detected by potentiometry device Detection capacitance sensor, so that producing, driver drives signal.Capacitance sensor and potentiometry device are all devices of existing maturation, have guaranteed the feasibility of embodiment of the present invention.
Specifically, capacitance sensor produces induced potential when the contact that subject detected.The touch that detects subject by capacitance sensor is the technology of existing maturation, does not repeat them here.In the present embodiment, the electrode material of capacitance sensor can be metal.Like this, the resistance of capacitance sensor is less, and power consumption is lower, can energy efficient.
Potentiometry device activates driver when induced potential being detected.State by potentiometry device Detection capacitance sensor is the technology of existing maturation, does not repeat them here.When the state that capacitance sensor detected when potentiometry device changes, show to exist the touch of subject, just activate driver.
Driver just produces driving signal when being activated, to activate fingerprint detection unit and biological information detecting unit.
In the present embodiment, provide the specific implementation of contact detection unit, guaranteed the feasibility of present embodiment.
The 7th embodiment of the present invention relates to a kind of method for detecting living body fingerprint, and idiographic flow as shown in Figure 6, comprises following steps:
Step 601, by the finger print information of fingerprint detection unit inspection subject.
Step 602, by the live body characteristic information of live body detecting unit detection subject, wherein, live body characteristic information is the peculiar biological information of subject.In the present embodiment, the information that live body characteristic information comprises ElectrocardiographicFrequency Frequency Spectrum.
Step 603, the log-on message of the characteristic information of the subject relatively being detected by authentication unit and subject registered in advance.Wherein, characteristic information comprises finger print information and live body characteristic information.
Step 604, judges that whether the characteristic information of subject and the log-on message of subject be consistent, if consistent, performs step 605, if inconsistent, performs step 606.
Step 605, is verified.
Step 606, authentication failed.
Be not difficult to find, present embodiment is the embodiment of the method corresponding with the first embodiment, present embodiment can with the enforcement of working in coordination of the first embodiment.The correlation technique details of mentioning in the first embodiment is still effective in the present embodiment, in order to reduce repetition, repeats no more here.Correspondingly, the correlation technique details of mentioning in present embodiment also can be applicable in the first embodiment.
The 8th embodiment of the present invention relates to a kind of method for detecting living body fingerprint.The 8th embodiment has been done further refinement on the basis of the 7th embodiment, has provided the concrete grammar that detects live body characteristic information, has guaranteed the feasibility of present embodiment.
Specifically, in the step of live body characteristic information that is detected subject by live body detecting unit, comprise following sub-step:
First, by the built-in signal projector transmitting incoming signal of live body detecting unit.
Then, by the built-in signal receiver of live body detecting unit, receive the reflected signal being reflected by the finger of subject when incoming signal runs into the finger of subject and export the built-in processor of live body detecting unit to.
Then, by processor, according to incoming signal and reflected signal, obtained the live body characteristic information of subject.
Be not difficult to find, present embodiment is the embodiment of the method corresponding with the second embodiment, present embodiment can with the enforcement of working in coordination of the second embodiment.The correlation technique details of mentioning in the second embodiment is still effective in the present embodiment, in order to reduce repetition, repeats no more here.Correspondingly, the correlation technique details of mentioning in present embodiment also can be applicable in the second embodiment.
The 9th embodiment of the present invention relates to a kind of method for detecting living body fingerprint.The 9th embodiment has been done further refinement on the basis of the 8th embodiment, has provided the concrete methods of realizing that detects live body characteristic information, has guaranteed the feasibility of embodiment of the present invention.
Specifically, in the present embodiment, signal projector is light emitting diode, and signal receiver is photodiode.
In the step of live body characteristic information that is detected subject by live body detecting unit, comprise following sub-step:
First, by light emitting diode transmitting incident optical signal.Wherein, incident optical signal can be visible ray or infrared light.
Then, by photodiode, receive the reflected light signal being reflected by the finger of subject when incident optical signal runs into the finger of subject and export processor to.
Then, by processor, according to incident optical signal and reflected light signal, obtained the live body characteristic information of subject.
Preferably, in the present embodiment, the exiting surface of live body detecting unit and the encapsulation of incidence surface can adopt transparent material.
Be not difficult to find, present embodiment is the embodiment of the method corresponding with the 3rd embodiment, present embodiment can with the enforcement of working in coordination of the 3rd embodiment.The correlation technique details of mentioning in the 3rd embodiment is still effective in the present embodiment, in order to reduce repetition, repeats no more here.Correspondingly, the correlation technique details of mentioning in present embodiment also can be applicable in the 3rd embodiment.
Tenth embodiment of the invention relates to a kind of method for detecting living body fingerprint, and idiographic flow as shown in Figure 7.The tenth embodiment has been done further improvement on the basis of the 7th embodiment, main improvements are: in the tenth embodiment, before the step of the finger print information by fingerprint detection unit inspection subject, also comprise following steps: the touch of contact detection unit inspection subject, and when the touch that subject detected, activate fingerprint detection unit and biological information detecting unit.Like this, can save energy, prolongs standby time; Meanwhile, can reduce the working loss of fingerprint detection unit and biological information detecting unit, extend its service life.
Specifically, in the present embodiment, comprise following steps:
Step 701, the touch of contact detection unit inspection subject, and when the touch that subject detected, activate fingerprint detection unit and biological information detecting unit.
Step 702, by the finger print information of fingerprint detection unit inspection subject.
Step 703, by the live body characteristic information of live body detecting unit detection subject, wherein, live body characteristic information is the peculiar biological information of subject.
Step 704, is compared the log-on message of the characteristic information of the subject detecting and subject registered in advance by authentication unit.Wherein, characteristic information comprises finger print information and live body characteristic information.
Step 705, judges that whether the characteristic information of subject and the log-on message of subject be consistent, if consistent, performs step 706, if inconsistent, performs step 707.
Step 706, is verified.
Step 707, authentication failed.
Be not difficult to find, present embodiment is the embodiment of the method corresponding with the 4th embodiment, present embodiment can with the enforcement of working in coordination of the 4th embodiment.The correlation technique details of mentioning in the 4th embodiment is still effective in the present embodiment, in order to reduce repetition, repeats no more here.Correspondingly, the correlation technique details of mentioning in present embodiment also can be applicable in the 4th embodiment.
The 11 embodiment of the present invention relates to a kind of method for detecting living body fingerprint.The 11 embodiment has been done further refinement on the basis of the tenth embodiment, provided the touch of contact detection unit inspection subject, and when the touch that subject detected, activate the concrete grammar of fingerprint detection unit and biological information detecting unit, guaranteed the feasibility of present embodiment.
Specifically, in the touch of contact detection unit inspection subject, and activate in the step of fingerprint detection unit and biological information detecting unit when the touch that subject detected, comprise following sub-step:
First, the built-in contact type sensor state when the contact that subject detected in contact detection unit changes.
Then, by the built-in state detector in contact detection unit, when changing, the state that contact type sensor detected activates the built-in driver in contact detection unit.
Then, by driver, produce and drive signal activation fingerprint detection unit and biological information detecting unit.
Be not difficult to find, present embodiment is the embodiment of the method corresponding with the 5th embodiment, present embodiment can with the enforcement of working in coordination of the 5th embodiment.The correlation technique details of mentioning in the 5th embodiment is still effective in the present embodiment, in order to reduce repetition, repeats no more here.Correspondingly, the correlation technique details of mentioning in present embodiment also can be applicable in the 5th embodiment.
The 12 embodiment of the present invention relates to a kind of method for detecting living body fingerprint.The 12 embodiment has been done further refinement on the basis of the 11 embodiment, provided the touch of contact detection unit inspection subject, and when the touch that subject detected, activate the concrete methods of realizing of fingerprint detection unit and biological information detecting unit, guaranteed the feasibility of embodiment of the present invention.
Specifically, in the present embodiment, contact type sensor is capacitance sensor, and state detector is potentiometry device.
In the touch of contact detection unit inspection subject, and activate in the step of fingerprint detection unit and biological information detecting unit when the touch that subject detected, comprise following sub-step:
First, capacitance sensor produces induced potential when the contact that subject detected.
Then, by potentiometry device, when induced potential being detected, activate driver.
Then, by driver, produce and drive signal activation fingerprint detection unit and biological information detecting unit.
Be not difficult to find, present embodiment is the embodiment of the method corresponding with the 6th embodiment, present embodiment can with the enforcement of working in coordination of the 6th embodiment.The correlation technique details of mentioning in the 6th embodiment is still effective in the present embodiment, in order to reduce repetition, repeats no more here.Correspondingly, the correlation technique details of mentioning in present embodiment also can be applicable in the 6th embodiment.
Persons of ordinary skill in the art may appreciate that the respective embodiments described above are to realize specific embodiments of the invention, and in actual applications, can to it, do various changes in the form and details, and without departing from the spirit and scope of the present invention.
Claims (16)
1. a living body finger print checkout gear, is characterized in that, comprises: fingerprint detection unit, live body detecting unit and authentication unit;
Described fingerprint detection unit, for detection of the finger print information of subject;
Described live body detecting unit, for detection of the live body characteristic information of described subject, wherein, described live body characteristic information is the peculiar biological information of described subject;
Described authentication unit, for the log-on message of the characteristic information of the described subject detecting and described subject registered in advance is compared, if consistent, is verified; Wherein, described characteristic information comprises described finger print information and described live body characteristic information.
2. living body finger print checkout gear according to claim 1, is characterized in that, described live body detecting unit comprises: signal projector, signal receiver and processor;
Described signal projector is used for launching incoming signal; Described signal receiver is for receiving the reflected signal being reflected by the finger of described subject when described incoming signal runs into the finger of described subject and exporting described processor to; Described processor obtains the live body characteristic information of described subject according to described incoming signal and described reflected signal.
3. living body finger print checkout gear according to claim 2, is characterized in that, described signal projector is light emitting diode, and described signal receiver is photodiode;
Described light emitting diode is used for launching incident optical signal; Described photodiode is for receiving the reflected light signal being reflected by the finger of described subject when described incident optical signal runs into the finger of described subject and exporting described processor to; Described processor obtains the live body characteristic information of described subject according to described incident optical signal and described reflected light signal.
4. living body finger print checkout gear according to claim 3, is characterized in that, described incident optical signal is visible ray or infrared light.
5. living body finger print checkout gear according to claim 2, is characterized in that, described signal projector and described signal receiver are arranged at the both sides of described fingerprint detection unit symmetrically.
6. living body finger print checkout gear according to claim 1, is characterized in that, also comprises contact detection unit;
Described contact detection unit is for detection of the touch of described subject, and when the touch that described subject detected, activates described fingerprint detection unit and described biological information detecting unit.
7. living body finger print checkout gear according to claim 6, is characterized in that, described contact detection unit is arranged at the periphery of described fingerprint detection unit.
8. living body finger print checkout gear according to claim 6, is characterized in that, described contact detection unit comprises: contact type sensor, state detector and driver;
Described contact type sensor state when the contact that described subject detected changes; Described state detector activates described driver when the state that described contact type sensor detected changes; Described driver is for generation of fingerprint detection unit and described biological information detecting unit described in driving signal activation.
9. living body finger print checkout gear according to claim 8, is characterized in that, described contact type sensor is capacitance sensor, and described state detector is potentiometry device;
Described capacitance sensor produces induced potential when the contact that described subject detected; Described potentiometry device activates described driver when described induced potential being detected; Described driver is for generation of fingerprint detection unit and described biological information detecting unit described in driving signal activation.
10. living body finger print checkout gear according to claim 1, is characterized in that, the information that described live body characteristic information comprises ElectrocardiographicFrequency Frequency Spectrum.
11. 1 kinds of method for detecting living body fingerprint, is characterized in that, comprise following steps:
Finger print information by fingerprint detection unit inspection subject;
By live body detecting unit, detected the live body characteristic information of described subject, wherein, described live body characteristic information is the peculiar biological information of described subject;
The log-on message of the characteristic information of the described subject relatively being detected by authentication unit and described subject registered in advance, if consistent, is verified; Wherein, described characteristic information comprises described finger print information and described live body characteristic information.
12. method for detecting living body fingerprint according to claim 11, is characterized in that, in the step of the described live body characteristic information that is detected described subject by live body detecting unit, comprise following sub-step:
By the built-in signal projector transmitting incoming signal of described live body detecting unit;
By the built-in signal receiver of described live body detecting unit, receive the reflected signal being reflected by the finger of described subject when described incoming signal runs into the finger of described subject and export the built-in processor of described live body detecting unit to;
By described processor, according to described incoming signal and described reflected signal, obtained the live body characteristic information of described subject.
13. method for detecting living body fingerprint according to claim 12, is characterized in that, described signal projector is light emitting diode, and described signal receiver is photodiode;
In the step of the described live body characteristic information that is detected described subject by live body detecting unit, comprise following sub-step:
By described light emitting diode transmitting incident optical signal;
By described photodiode, receive the reflected light signal being reflected by the finger of described subject when incident optical signal runs into the finger of described subject and export described processor to;
By described processor, according to described incident optical signal and described reflected light signal, obtained the live body characteristic information of described subject.
14. method for detecting living body fingerprint according to claim 11, is characterized in that, before the step of the described finger print information by fingerprint detection unit inspection subject, also comprise following steps:
The touch of subject described in contact detection unit inspection, and when the touch that described subject detected, activate described fingerprint detection unit and described biological information detecting unit.
15. method for detecting living body fingerprint according to claim 14, it is characterized in that, touch at subject described in described contact detection unit inspection, and activate in the step of described fingerprint detection unit and described biological information detecting unit when the touch that described subject detected, comprise following sub-step:
The built-in contact type sensor state when the contact that described subject detected in described contact detection unit changes;
The state detector built-in by described contact detection unit activates the built-in driver in described contact detection unit when the state that described contact type sensor detected changes;
By fingerprint detection unit and described biological information detecting unit described in described driver generation driving signal activation.
16. method for detecting living body fingerprint according to claim 15, is characterized in that, described contact type sensor is capacitance sensor, and described state detector is potentiometry device;
In the touch of subject described in described contact detection unit inspection, and activate in the step of described fingerprint detection unit and described biological information detecting unit when the touch that described subject detected, comprise following sub-step:
Described capacitance sensor produces induced potential when the contact that described subject detected;
By described potentiometry device, when described induced potential being detected, activate described driver;
By fingerprint detection unit and described biological information detecting unit described in described driver generation driving signal activation.
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