CN206907051U - A kind of integrated form phased array fingerprint sensor - Google Patents
A kind of integrated form phased array fingerprint sensor Download PDFInfo
- Publication number
- CN206907051U CN206907051U CN201720819889.5U CN201720819889U CN206907051U CN 206907051 U CN206907051 U CN 206907051U CN 201720819889 U CN201720819889 U CN 201720819889U CN 206907051 U CN206907051 U CN 206907051U
- Authority
- CN
- China
- Prior art keywords
- phased array
- fingerprint sensor
- gyroscope
- integrated form
- microcontroller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a kind of integrated form phased array fingerprint sensor, including a circuit board, microcontroller is set on the circuit board, phased array transceiver module for fingerprint recognition, gyroscope, acceleration transducer, for the analog matrix switch of signal switching, A/D modular converters and the power module for power supply；Phased array transceiver module, gyroscope and acceleration transducer are switched by analog matrix and electrically connected with the input of A/D modular converters, and the output end of A/D modular converters electrically connects with microcontroller.Phased array principle is applied in fingerprint recognition by the utility model, improve discrimination and accuracy, gyroscope and acceleration transducer are integrated on phased array fingerprint sensor, integrated design, it is simple in construction, small volume, while reduce the influence of outer bound pair sensor signal, improve the stability of sensor.The utility model solves single fingerprint sensor high power consumption, can not wake up and the problems such as mobile alarm.
Description
Technical field
It the utility model is related to sensor technology, and in particular to a kind of integrated form phased array fingerprint sensor.
Background technology
Fingerprint sensor is the Primary Component for realizing fingerprint automatic data collection.Due to spies such as the uniqueness of fingerprint and portability
Point, fingerprint sensor have been widely used for the identity information certifications such as financial payment, security protection facility, attendance checking system identification field.
Traditional fingerprint recognition mode has optical identification, electric capacity identification.The defects of wherein electric capacity identification method is present is pair
It is low in discriminations such as dirty finger, wet fingers.Current relatively advanced fingerprint identification technology is radio-frequency fingerprint identification technology, but is adopted
The frequency and phase of radiofrequency signal are single, cause its investigation depth and dimension to be confined to the finger of constant depth within tens μm
On wrinkle ridge line two dimensional image, can not further it collect including bio-identifications such as fingerprint ridge line, fine hair hole, capillary, bones
3-D view including information, limit the further raising of discrimination, accuracy and antifalsification.Biological identification technology refers to lead to
Cross computer to be intimately associated with high-tech means such as optics, acoustics, biology sensor and biostatistics principles, consolidated using human body
Some physiological properties, such as fingerprint, face carry out a person as, iris etc. and behavioural characteristic, such as person's handwriting, sound, gait etc.
The technological means of part identification, has the advantages that anti-interference factor is strong, discrimination is high.But, it is necessary to " move in special field
Dynamic, distance " detection technique, to solve the problems such as sensor wake-up, low-power consumption, mobile alarm, tracing of the movement, these problems
Solution method rely solely on single biological identification technology and can not realize.
Utility model content
In order to solve the above problems, the utility model provides a kind of fingerprint recognition rate and accuracy height and can solve the problem that single
Sensor high power consumption, it can not wake up and integrated form phased array fingerprint sensor the problems such as mobile alarm.
To achieve these goals, the technical solution adopted in the utility model is：
A kind of integrated form phased array fingerprint sensor, including a circuit board, microcontroller is set on circuit board, for sending out
Penetrate and receive the phased array transceiver module of wireless signal, gyroscope, acceleration transducer, the analog matrix for signal switching opens
Close, A/D modular converters and the power module for power supply；Microcontroller is used to handle real-time phased array transceiver module, gyroscope
With the information of acceleration transducer, phased array transceiver module, gyroscope and acceleration transducer are switched by analog matrix and A/D
The input electrical connection of modular converter, the output end of A/D modular converters electrically connect with microcontroller.
Further, GPS module is set on circuit board, and GPS module is connected with microcontroller.
Further, phased array transceiver module includes multiple transmitting antennas, for sending the nothing of multi-frequency and/or phase
Line signal, wave beam electric scanning is carried out to finger print；Wireless signal generator, for transmitting antenna input multi-frequency and/
Or the wireless signal of phase wireless signal；Unlimited signal adjuster, between unlimited signal generator and transmitting antenna, it is used for
Adjust the phase and/or frequency of wireless input signal；At least one reception antenna, produced for receiving after wireless signal penetrates finger
Raw multiple reflected signals for being loaded with finger print information.
Preferably, microprocessor is the integrated chip based on MCU and DSP architecture.
Preferably, gyroscope is three-axis gyroscope.
Preferably, acceleration transducer is MEMS 3-axis acceleration sensors.
Preferably, microcontroller carries out information transfer by I2C interface or SPI interface.
Compared with prior art, the beneficial effects of the utility model：
（1）Gyroscope and acceleration transducer are integrated on phased array fingerprint sensor by the utility model, and integration is set
Meter, it is simple in construction, small volume, installing space is saved, maintain easily and install, reducing outer bound pair using integration mode senses
The influence of device signal, improve the stability of sensor.The utility model can be widely applied to mobile phone, automobile, Intelligent bracelet, print
In the plurality of devices such as chapter, can be not only used for fingerprint authentication, and can carry out innervation experiencing operation, the tracking of movement locus or
Adjusting device state is dormancy or wake-up according to demand, so as to reduce power module power consumption, energy-conserving and environment-protective；
（2）Phased array principle is applied on fingerprint sensor by the utility model, multiple with not by launching to finger
The wireless signal of same-phase and frequency realizes wave beam electric scanning, so as to obtaining multiple reflections for being loaded with different depth finger print information
Signal, can obtain the 3-D view with abundant minutia after handling reflected signal, discrimination and accuracy are high；By
Finger print information is acquired in the wireless signal using more spectral coverages, therefore it is dry to exclude sweat, hand lotion, scar etc.
The factor of disturbing realizes the identification of information, improves discrimination.
Brief description of the drawings
Fig. 1 is principle schematic of the present utility model；
Fig. 2 is the structural representation of phased array transceiver module in the utility model；
Wherein, 1- transmitting antennas, 2- reception antennas, 3- unlimited signals generator, 4- wireless signal adjusters.
Embodiment
With reference to Fig. 1 and Fig. 2, embodiment of the present utility model is elaborated, the present embodiment is new with this practicality
Implemented under premised on type technical scheme, give detailed embodiment and specific operating process, but the utility model
Protection domain be not limited to following embodiments.
The utility model discloses a kind of integrated form phased array fingerprint sensor, including a circuit board, as shown in figure 1,
Microcontroller is set on circuit board, for launching and receiving the phased array transceiver module of wireless signal, gyroscope, acceleration sensing
Device, for the analog matrix switch of signal switching, A/D modular converters and power module.Microcontroller is phased in real time for handling
The information of battle array transceiver module, gyroscope and acceleration transducer, power module are used to power for whole circuit system.
Phased array transceiver module is used to launching and receiving wireless signal progress fingerprint recognition, as shown in Fig. 2 including multiple hairs
Antenna 1 is penetrated, for sending the wireless signal of multi-frequency and/or phase, wave beam electric scanning, wireless signal are carried out to finger print
Frequency between 1MHz ~ 5MHz, can penetrate the materials such as metal, plastics, glass, exclude the interference such as sweat, hand lotion, scar because
Element realizes the identification of information, improves discrimination, the mode of wave beam electric scanning be mutually sweep, sweep frequently, phase/mutually sweep or phase/is swept, adopted frequently
With the combination of a variety of wave beam electric scanning modes, the resolution and interference free performance of fingerprint can be further improved, is realized adaptive
The functions such as collection, topology search and Intelligent Recognition；Wireless signal generator 3, for transmitting antenna input multi-frequency and/or
The wireless signal of phase wireless signal；Unlimited signal adjuster 4, between unlimited signal generator 3 and transmitting antenna 1, use
In the phase and/or frequency of regulation wireless input signal；At least one reception antenna 2, finger is penetrated for receiving wireless signal
Multiple reflected signals for being loaded with finger print information are produced afterwards.
Analog matrix switch is connected by transmission circuit with phased array transceiver module, and what reception antenna 2 received is loaded with fingerprint
The reflected signal of information is filtered after noise reduction and enhanced processing by transmission circuit is conveyed to analog matrix switch, and phased array is received
Hair module, gyroscope and acceleration transducer are switched by analog matrix to be electrically connected with the input of A/D modular converters, and A/D turns
The output end of mold changing block electrically connects with microcontroller.Analog matrix switch is ordered phased array transceiver module, gyro according to demand
Instrument, the signal of acceleration transducer switch over, and selectively transmit a signal to A/D modular converters, and A/D modular converters will receive
Electric signal be converted into data signal；Microprocessor receives data signal and carries out image procossing or calculating to signal as needed
Draw corresponding data.In the present embodiment, microprocessor is the integrated chip based on MCU and DSP architecture, has powerful letter
Number processing function, and there is low-power consumption, low cost and small package；Gyroscope is using three-axis gyroscope, acceleration
Sensor is MEMS 3-axis acceleration sensors.Microcontroller carries out information transfer by I2C interface or SPI interface.
Also settable GPS module on circuit board, for positioning position information, GPS module is connected with microcontroller, works as GPS
During the dropout of module, microcontroller also can carry out tracing of the movement according to the signal of gyroscope and acceleration transducer.
The utility model can be widely applied in the plurality of devices such as mobile phone, automobile, Intelligent bracelet, seal, can not only use
In fingerprint authentication, and can carry out innervation experiencing operation, the tracking of movement locus or according to demand adjusting device state for stop
Sleep or wake up, so as to reduce power module power consumption, energy-conserving and environment-protective.
During so that the utility model is applied to seal as an example, it is necessary to using seal, fingerprint authentication, phased array transmitting-receiving are carried out first
Module starts, and treats that the consistent rear of fingerprint authentication can be used.When seal is kept flat, gyroscope and acceleration transducer are detected at seal
In inactive state, this signal is transferred to microcontroller, microcontroller adjustment power module is low-power consumption powering mode, i.e. dormancy
Pattern, reduce power module power consumption, energy-conserving and environment-protective；When needing to use seal, gyroscope and acceleration transducer detect print
Zhang Yidong, this signal is transferred to microcontroller, it is normal power supply pattern that microcontroller adjusts power module again, that is, wakes up mould
Formula, it is easy to use.
So that the utility model is applied to automobile or electric car as an example, it is necessary to during unlocked by fingerprint, phased array transceiver module starts,
Carry out fingerprint authentication；When needing the positional information of positioning automobile or electric car, GPS module starts, and obtains positional information；Need
Solve the movement locus of automobile or electric car, and the signal of GPS module is weaker or during dropout, gyroscope and acceleration transducer
Detection signal simultaneously transmits a signal to microcontroller, obtains their movement locus.
By the utility model be applied to the elderly with intelligent watch exemplified by, it is necessary to start intelligent watch carry out unlocked by fingerprint
When, phased array transceiver module starts, and carries out fingerprint authentication；When needing positioning position information, GPS module starts, and obtains position letter
Breath；When gyroscope and acceleration transducer detect the weightless twinkling signal of Falls Among Old People, this signal is transferred to microcontroller
Device, microcontroller can control external siren to send alarm, remind other people that tumble old man is propped up and given treatment in time.
Gyroscope and acceleration transducer are integrated on phased array fingerprint sensor by the utility model, integrated design,
It is simple in construction, small volume, installing space is saved, maintain easily and install, outer bound pair sensor is reduced using integration mode
The influence of signal, improve the stability of sensor.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (7)
1. a kind of integrated form phased array fingerprint sensor, including a circuit board, it is characterised in that set on the circuit board micro-
Controller, for launching and receiving the phased array transceiver module of wireless signal, gyroscope, acceleration transducer, cut for signal
The analog matrix switch changed, A/D modular converters and the power module for power supply；Microcontroller is used to handle real-time phased array receipts
The information of module, gyroscope and acceleration transducer is sent out, phased array transceiver module, gyroscope and acceleration transducer pass through simulation
Matrix switch electrically connects with the input of A/D modular converters, and the output end of A/D modular converters electrically connects with microcontroller.
2. according to the integrated form phased array fingerprint sensor described in claim requirement 1, it is characterised in that set on circuit board
GPS module, GPS module are connected with microcontroller.
3. integrated form phased array fingerprint sensor according to claim 1 or 2, it is characterised in that phased array transceiver module
Including multiple transmitting antennas, for sending the wireless signal of multi-frequency and/or phase, wave beam electricity is carried out to finger print and swept
Retouch；Wireless signal generator, for inputting the wireless signal of multi-frequency and/or phase wireless signal to transmitting antenna；Infinitely
Signal conditioner, between unlimited signal generator and transmitting antenna, for adjusting the phase and/or frequency of wireless input signal
Rate；At least one reception antenna, multiple reflected signals for being loaded with finger print information are produced for receiving after wireless signal penetrates finger.
4. integrated form phased array fingerprint sensor according to claim 1 or 2, it is characterised in that microprocessor is to be based on
MCU and DSP architecture integrated chip.
5. integrated form phased array fingerprint sensor according to claim 1 or 2, it is characterised in that gyroscope is three axle tops
Spiral shell instrument.
6. integrated form phased array fingerprint sensor according to claim 1 or 2, it is characterised in that acceleration transducer is
MEMS 3-axis acceleration sensors.
7. integrated form phased array fingerprint sensor according to claim 1 or 2, it is characterised in that microcontroller passes through I2C
Interface or SPI interface carry out information transfer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720819889.5U CN206907051U (en) | 2017-07-07 | 2017-07-07 | A kind of integrated form phased array fingerprint sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720819889.5U CN206907051U (en) | 2017-07-07 | 2017-07-07 | A kind of integrated form phased array fingerprint sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206907051U true CN206907051U (en) | 2018-01-19 |
Family
ID=61293189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720819889.5U Active CN206907051U (en) | 2017-07-07 | 2017-07-07 | A kind of integrated form phased array fingerprint sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206907051U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107145881A (en) * | 2017-07-07 | 2017-09-08 | 合肥芯福传感器技术有限公司 | A kind of integrated form phased array fingerprint sensor |
-
2017
- 2017-07-07 CN CN201720819889.5U patent/CN206907051U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107145881A (en) * | 2017-07-07 | 2017-09-08 | 合肥芯福传感器技术有限公司 | A kind of integrated form phased array fingerprint sensor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3791563B1 (en) | Robust radar-based gesture-recognition by user equipment | |
| JP4673251B2 (en) | Keyless entry device | |
| KR102639579B1 (en) | Stay verified | |
| WO2021021218A1 (en) | Maintaining an authenticated state | |
| CN106339073A (en) | Motion-correlation control system to control communication of a wearable device | |
| KR20160133514A (en) | Fingerprint sensors | |
| CN104063928B (en) | High-frequency antenna feature discrimination-based smart lock system | |
| JP2007517274A5 (en) | ||
| CN205621019U (en) | Phased array biological identification information acquisition module | |
| CN106919295A (en) | Human-computer interaction device and display device | |
| WO2020006943A1 (en) | Rfid senseless control method, device and system based on range sensor | |
| CN103985177B (en) | Based on limited mutual passive type intelligent lock system | |
| CN206907051U (en) | A kind of integrated form phased array fingerprint sensor | |
| CN110763923A (en) | Specific absorption rate value control method and mobile terminal | |
| CN107145881A (en) | A kind of integrated form phased array fingerprint sensor | |
| CN103971439A (en) | Passive intelligent lock system based on restricted interaction | |
| CN107564139A (en) | A kind of method and AP for waking up Household access control system | |
| CN206907050U (en) | One kind encryption phased array fingerprint sensor | |
| CN106934270A (en) | Intelligent terminal with phased array biometric authentication function | |
| CN210274488U (en) | Intelligent sound box and intelligent equipment | |
| CN109359447B (en) | Equipment unlocking control method and device and electronic equipment | |
| CN220487319U (en) | Induction control device, induction control system, door lock control system and door | |
| CN208737488U (en) | First knuckle refers to venous collection device | |
| CN207216634U (en) | A kind of living body finger print identification device | |
| CN208550219U (en) | Vein rascette identification Intelligent bracelet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |