CN107958281A - Fingerprint U disk and its data transmission method - Google Patents
Fingerprint U disk and its data transmission method Download PDFInfo
- Publication number
- CN107958281A CN107958281A CN201711325765.2A CN201711325765A CN107958281A CN 107958281 A CN107958281 A CN 107958281A CN 201711325765 A CN201711325765 A CN 201711325765A CN 107958281 A CN107958281 A CN 107958281A
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- Prior art keywords
- fingerprint
- flash memory
- module
- microcontroller
- current detection
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Classifications
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- 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
- G06K19/07732—Physical layout of the record carrier the record carrier having a housing or construction similar to well-known portable memory devices, such as SD cards, USB or memory sticks
-
- 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
- G06K19/073—Special arrangements for circuits, e.g. for protecting identification code in memory
- G06K19/07309—Means for preventing undesired reading or writing from or onto record carriers
- G06K19/07345—Means for preventing undesired reading or writing from or onto record carriers by activating or deactivating at least a part of the circuit on the record carrier, e.g. ON/OFF switches
- G06K19/07354—Means for preventing undesired reading or writing from or onto record carriers by activating or deactivating at least a part of the circuit on the record carrier, e.g. ON/OFF switches by biometrically sensitive means, e.g. fingerprint sensitive
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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- General Engineering & Computer Science (AREA)
- Image Input (AREA)
Abstract
The present invention provides a kind of fingerprint U disk and its data transmission method.The fingerprint U disk includes USB interface and the master controller, authentication module and the flash memory management module that connect two-by-two, and the authentication module includes microcontroller and the fingerprint module being connected with the microcontroller.By fingerprint module gather current detection fingerprint and storage authorize fingerprint, the microcontroller judge current detection fingerprint whether with authorize fingerprint match, and if current detection fingerprint with mandate fingerprint match, to the flash memory management module for power supply.The fingerprint U disk starts flash memory management module by the control of the power supply to flash memory management module to realize, flash memory management module passes sequentially through the technology carried out data transmission after master controller and USB interface with external equipment, any driving and software need not be installed, use scope is extensive.
Description
Technical field
The present invention relates to technical field of data storage, and in particular, to a kind of fingerprint U disk and its data transmission method.
Background technology
In the environment of high speed information expansion, the mobile storage instrument of such as USB flash disk etc is because itself has using just
The advantages such as prompt, quick, the security performance height of transmission, it is either personal in data exchange increasingly frequent today, or specialty or enterprise
Industry user, tends to be carried out the preservation of significant data with USB flash disk, which in itself proposes properties of product new requirement,
I.e. security is even more important.Conventional authentication and cipher mode based on password cannot increasingly expire there are problems
The particular/special requirement of some sensitive occasions of foot.Biometric identity authentication techniques and encryption mechanism are organically combined together, can
To be ensured information security permanently effective using the uniqueness of biological characteristic, irreplaceability, thoroughly prevent password and key is lost
Biometric identity authentication techniques are applied to USB flash disk by the phenomenon forgotten, be stolen and be cracked, and can be provided a kind of safer, just
Prompt file encryption Managed Solution.
Existing fingerprint U disk, mainly uses two kinds of implementations：One kind is to couple USB flash disk control chip and fingerprint biography with Hub
Sensor, USB flash disk is controlled by PC machine.The finger prints processing of such a mode, which compares, to be run by PC ends, is deposited in USB flash disk is transmitted with PC end datas
In security risk.Another way is to control USB flash disk by USB flash disk control chip.Such a mode needs PC ends to send verification instruction to U
Disk control chip controls opening encryption data, since PC machine instruction is easily modeled counterfeit, equally exists in this way
Security risk.Above-mentioned fingerprint U disk implementation is required to realize fingerprint protection function in PC ends software support, there is peace
Full hidden danger.
Thus, it is necessary to a kind of improved fingerprint U disk is provided, to avoid drawbacks described above.
The content of the invention
To overcome drawbacks described above, the present invention provides the control of power supply to flash memory management module a kind of to realize startup flash memory
Management module passes sequentially through the technology carried out data transmission after master controller and USB interface with external equipment, any without installing
Driving and software, use scope are extensive.
The present invention provides a kind of fingerprint U disk, and the fingerprint U disk includes USB interface and the master controller connected two-by-two, authentication
Module and flash memory management module, the authentication module include microcontroller and the fingerprint module being connected with the microcontroller；
The USB interface, for connecting the master controller and external equipment, realizes external equipment to the master controller
Power supply and the data transfer between external equipment and the master controller；
The master controller, for providing electric energy to the authentication module and being responsible for the communication with external equipment；
The fingerprint module, the mandate for gathering current detection fingerprint and sending the current detection fingerprint and prestore refer to
Line is to the microcontroller；
The microcontroller, for judging whether current detection fingerprint matches with the mandate fingerprint to prestore, and if current
Detection fingerprint is with authorizing fingerprint to match, then to the flash memory management module for power supply；
The flash memory management module, for carrying out data transmission with the master controller.
Preferably, the flash memory management module is including for storing the flash memory of data and for reading data from the flash memory
Or the flash controller to flash memory write-in data, the flash controller and master controller communication connection, the sudden strain of a muscle
Memory controller and the microcontroller are electrically connected.
Preferably, the fingerprint module includes fingerprint collecting subelement, fingerprint storing sub-units and fingerprint transmission sub-unit,
Wherein,
The fingerprint collecting subelement, for gathering the image of current detection fingerprint；
The fingerprint storing sub-units, fingerprint is authorized for storing；
The fingerprint transmission sub-unit, for by the current detection fingerprint of collection and storage the mandate fingerprint to prestore
Send to the microcontroller.
Preferably, the microcontroller includes receiving unit, judging unit and power supply unit, wherein,
The receiving unit, the current detection fingerprint and mandate fingerprint sent for receiving the fingerprint transmission sub-unit；
The judging unit, for judging whether current detection fingerprint matches with the mandate fingerprint to prestore；
Said supply unit, if coincideing for current detection fingerprint with the mandate fingerprint to prestore, controls to the flash memory
Device is powered.
Preferably, the authentication module further includes authenticating unit and fingerprint management unit；
The authenticating unit is used to verify whether the PIN code currently inputted is correct；
The fingerprint management unit is used to update the mandate fingerprint to prestore in the fingerprint storing sub-units, current defeated
When the PIN fingerprint codes entered are correct, typing current detection fingerprint is mandate fingerprint, or deletes and authorize fingerprint.
Preferably, the fingerprint U disk further includes the first LED light, the second LED light and the 3rd LED light, and with the fingerprint
Gather subelement, the judging unit and the fingerprint management unit are electrically connected with based on the fingerprint collecting subelement, described
Judging unit and the fingerprint management unit control the LED drivings that the first LED light, the second LED light and the 3rd LED light shine
Controller.
Preferably, the LED drive control devices include being based on controlling the first LED during fingerprint collected works cell operation
The first drive circuit when lamp flickers, the comparison result based on the judging unit control the second of the second LED light flicker
Drive circuit and the 3rd driving electricity that the 3rd LED light flicker is controlled based on the fingerprint management unit typing or deletion fingerprint
Road.
Present invention simultaneously provides a kind of data transmission method of fingerprint U disk, and the fingerprint U disk is including USB interface and two-by-two
Master controller, authentication module and the flash memory management module of connection, the authentication module include microcontroller and with the microcontroller
The fingerprint module that device is connected, described method includes following steps：
When the USB interface is connected with external equipment, the external equipment is by the master controller to the micro-control
Device power supply processed, the microcontroller start the fingerprint module；
The fingerprint module gather current detection fingerprint and send the current detection fingerprint and the mandate fingerprint that prestores extremely
The microcontroller；
The microcontroller judges whether current detection fingerprint matches with the mandate fingerprint to prestore, and refers in current detection
When line matches with the mandate fingerprint to prestore, the microcontroller is to the flash memory management module for power supply；
The flash memory management module carries out data biography after the master controller and the USB interface with external equipment successively
It is defeated.
Preferably, the flash memory management module is including for storing the flash memory of data and for reading data from the flash memory
Or the flash controller to flash memory write-in data, the flash controller and master controller communication connection, the sudden strain of a muscle
Memory controller and the microcontroller are electrically connected.
Preferably, the authentication module further includes authenticating unit and fingerprint management unit；
The authenticating unit is used to verify whether the PIN code currently inputted is correct；
The fingerprint management unit is used for the mandate fingerprint for updating the fingerprint module, in the PIN fingerprint codes currently inputted
When correct, typing current detection fingerprint is mandate fingerprint, or deletes and authorize fingerprint.
Compared to the prior art, fingerprint U disk provided by the invention and its data transmission method have the advantages that：Institute
Stating fingerprint U disk includes USB interface and the master controller, authentication module and the flash memory management module that connect two-by-two, the authentication module
The fingerprint module being connected including microcontroller and with the microcontroller, gathers current detection fingerprint by fingerprint module and deposits
Storage authorizes fingerprint, and the microcontroller judges whether current detection fingerprint matches with the mandate fingerprint to prestore, and if current inspection
Survey fingerprint to match with the mandate fingerprint to prestore, then to the flash memory management module for power supply, i.e., flash memory is controlled by fingerprint authentication
The power supply of management module.On the one hand, which is integrated with independent authentication module, and flash memory management is controlled by authentication module
The power supply of module, is not take up any memory space of system and the calculation resources of CPU, without any driving and software is installed, makes
It is extensive with environment, it can be used under the systems such as windows, linux, mac；On the other hand, simply to flash disk management module into
Row power supply management, the code in unmodified any flash disk management module, compatible all common U disk on the market.
Brief description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, wherein：
Fig. 1 is the functional block diagram of fingerprint U disk first embodiment provided by the invention；
Fig. 2 is the refinement high-level schematic functional block diagram of fingerprint module shown in Fig. 1；
Fig. 3 is the refinement high-level schematic functional block diagram of microcontroller shown in Fig. 1；
Fig. 4 is the structure diagram of fingerprint U disk second embodiment provided by the invention；
Fig. 5 is the step flow diagram of one preferred embodiment of data transmission method of fingerprint U disk provided by the invention.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only the part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained all other without making creative work
Embodiment, belongs to the scope of protection of the invention.
Embodiment one
Please refer to Fig.1 to Fig.3, in the present embodiment, the fingerprint U disk includes usb 10 and the main control connected two-by-two
Device 20, authentication module 30 and flash memory management module 40.Flash memory pipe is controlled by increasing the independent verification fingerprint of authentication module 30
Manage module 40 power supply, be not take up any memory space of system and the calculation resources of CPU, without install it is any driving and it is soft
Part, use environment is extensive, can be used under the systems such as windows, linux, mac；On the other hand, simply to flash memory disk management mould
Block 40 is powered management, the code in unmodified any flash disk management module 40, compatible all common U disk on the market.
The usb 10 is used to connect the master controller 20 and external equipment, realizes external equipment to the master control
Device 20 processed is powered and the data transfer between external equipment and the master controller 20.
The usb 10 is USB3.0 interfaces, it can power for the master controller 20 and cause described at the same time
Fingerprint U disk carries out data transmission with external equipment, external equipment, that is, host computer.
The master controller 20 is used to provide electric energy to the authentication module 30 and is responsible for the communication with external equipment.Referring to
After line compares successfully, the flash memory management module 40 is carried out data transmission by the master controller 20 with external equipment.It is described
Master controller 20 can use any of micro computer, microcontroller or micromodule etc..
The authentication module 30 is the standalone module that the fingerprint U disk integrates, and the fingerprint U disk is connected by usb 10
By usb 10 after the power is turned on, external equipment is by the master controller 20 to the mirror for upper external equipment, that is, fingerprint U disk
Power module 30 is powered, and 30 module of authentication module starts.
The authentication module 30 includes fingerprint module 31, microcontroller 33, authenticating unit 35 and fingerprint management unit 37.
The fingerprint module 31 is used to gather current detection fingerprint and sends the current detection fingerprint and the mandate to prestore
Fingerprint is to the microcontroller 33.
The fingerprint module 31 includes fingerprint collecting subelement 311, fingerprint storing sub-units 313 and fingerprint transmission sub-unit
313, wherein,
The fingerprint collecting subelement 311 is used for the image for gathering current detection fingerprint；
The fingerprint storing sub-units 313, which are used to store, authorizes fingerprint；
The fingerprint transmission sub-unit 315 is used to send in the current detection fingerprint of collection and the mandate fingerprint to prestore
To the microcontroller 33.
After the authentication module 30 starts, when user places a digit into detection zone, the fingerprint collecting subelement 311 is adopted
Collect fingerprint image, which can be original image, data can also be optimized with processing extraction characteristic point, and store and be somebody's turn to do
Data；Meanwhile the microcontroller 33 sends to the fingerprint module 31 and asks, the fingerprint transmission sub-unit 315 is according to this
Request sends the current detection fingerprint of collection and the pre-stored mandate fingerprint to the microcontroller 33.
The microcontroller 33 is used to judge whether current detection fingerprint matches with the mandate fingerprint to prestore, and if current
Detection fingerprint matches with the mandate fingerprint to prestore, then powers to the flash memory management module 40.
The microcontroller 33 includes receiving unit 331, judging unit 333 and power supply unit 335, wherein,
The receiving unit 331 is used to receive current detection fingerprint and the mandate that the fingerprint transmission sub-unit 315 is sent
Fingerprint；
The judging unit 333 is used to judge whether current detection fingerprint matches with the mandate fingerprint to prestore；
If said supply unit 335 is coincide for current detection fingerprint with the mandate fingerprint to prestore, to the flash memory pipe
Reason module 40 is powered.
The current detection fingerprint and authorize fingerprint to be compared that the judging unit 333 receives the receiving unit 331
Compared with, when current detection fingerprint is with authorizing fingerprint to coincide, then said supply unit 335 is powered to the flash memory management module 40,
The store function of i.e. described flash memory management module 40 is opened, and hereafter, user can be written and read the flash memory management module 40
Operation；When current detection fingerprint verifies unsuccessful with authorizing fingerprint to misfit, then the flash memory management module 40 is not supplied
Electricity, user can not be to be written and read operation to the flash memory management module 40.
The authenticating unit 35 is used to verify whether the PIN code currently inputted is correct.
The fingerprint management unit 37 is used to update the mandate fingerprint in the fingerprint storing sub-units, what is currently inputted
When PIN fingerprint codes are correct, typing current detection fingerprint is mandate fingerprint, or deletes and authorize fingerprint.
The original state of fingerprint U disk without installing any driving and software, is directly entered USB flash disk, operation refers to without fingerprint recording
Line module.For the first time, it is necessary to set PIN code during operation fingerprint module, fingerprint is deleted and the pipe of typing by PIN code
Reason.At most can be with 5 pieces of fingerprints of typing.
The flash memory management module 40 is used for and the master controller 20 carries out data transmission.The flash memory management module 40
Including for storing the flash memory 43 of data and for reading data from the flash memory 43 or the sudden strain of a muscle of data being write to the flash memory 43
Memory controller 41.The flash controller 41 and the master controller 20 communication connection, the flash controller 41 and described micro-
Controller 33 is electrically connected.The flash memory management module 40 can be the flash memory management module of common U disks all on the market.
When current detection fingerprint is with authorizing fingerprint to coincide, the store function of the flash memory management module 40 is opened, user
Data can be read from the flash memory 43 by flash controller 41 or write data to the flash memory 43, the data are successively through institute
Carry out data transmission after stating master controller 20 and the usb 10 with external equipment.
Embodiment two
Referring to Fig. 4, the first embodiment shown in based on above-mentioned Fig. 1, the fingerprint U disk also sets up LED light, passes through
The working status that LED light distinguishes the fingerprint U disk is state, the successful state of current detection fingerprint comparison of collection fingerprint
The state of fingerprint is authorized with increase or deletion.Specifically, the fingerprint U disk further includes the first LED light 50,60 and of the second LED light
3rd LED light 70, and it is electric with the fingerprint collecting subelement 311, the judging unit 333 and the fingerprint management unit 37
Connection based on the fingerprint collecting subelement 311, the judging unit 333 and the fingerprint management unit 37 to control described the
The luminous LED drive control devices 80 of one LED light 50, the second LED light 60 and the 3rd LED light 70.
Preferably, described the is controlled when the LED drive control devices 80 are included based on the fingerprint collection subelement 311 work
The first drive circuit 81 when one LED light 50 flickers, the comparison result based on the judging unit 333 control the 2nd LED
The second drive circuit 83 and the 3rd LED is controlled based on 37 typing of fingerprint management unit or deletion fingerprint that lamp 60 flickers
The 3rd drive circuit 85 that lamp 70 flickers.
When finger is put into the pickup area that fingerprint U disk specifies by user, first LED light 50 is in the described first driving electricity
Flickered under the driving on road 81；If current detection fingerprint, with authorizing fingerprint to coincide, second LED light 60 is in the described second driving electricity
Flickered under the driving on road 83；Fingerprint is deleted and during the management of typing by PIN code in user, the 3rd LED light
70 flicker under the driving of the 3rd drive circuit 85, and user is by stating the first LED light 50, the second LED light 60 and the 3rd LED
The state of lamp 70 judges the working status residing for fingerprint U disk.
Referring to Fig. 5, present invention simultaneously provides a kind of data transmission method of fingerprint U disk described above, the method bag
Include following steps：
S1, when the usb 10 is connected with external equipment, the external equipment is by the master controller 20 to institute
State microcontroller 33 to power, the microcontroller 33 starts the fingerprint module 31.
The fingerprint U disk connects the i.e. described fingerprint U disk of external equipment by usb 10 after the power is turned on by usb 10,
External equipment is powered the microcontroller 33 in the authentication module 30 by the master controller 20, the microcontroller
33 start the fingerprint module 31.
S2, the fingerprint module 31 collection current detection fingerprint simultaneously send the current detection fingerprint and pre-stored mandate
Fingerprint is to the microcontroller 33.
When user places a digit into detection zone, the fingerprint module 31 gathers fingerprint image, which can be
Original image, can also optimize data processing extraction characteristic point, and store the data；Meanwhile the microcontroller 33 to
The fingerprint module 31 sends request, and the fingerprint module 31 by the current detection fingerprint of collection and prestores according to the request
The mandate fingerprint of storage is sent to the microcontroller 33.
S3, the microcontroller 33 judge whether current detection fingerprint matches with the mandate fingerprint to prestore, and current
When detection fingerprint matches with the mandate fingerprint to prestore, the microcontroller 33 is powered to the flash memory management module 40.
The microcontroller 33 receives current detection fingerprint and the pre-stored mandate fingerprint that fingerprint module 31 is sent
Both are compared afterwards, when current detection fingerprint is with authorizing fingerprint to coincide, then the microcontroller 33 is to the flash memory pipe
Reason module 40 is powered, i.e., the store function of described flash memory management module 40 is opened, and hereafter, user can be to the flash memory management mould
Block 40 is written and read operation；Misfitted in current detection fingerprint and mandate fingerprint when verifying unsuccessful, then the flash memory management
Module 40 is not powered, and user can not be to be written and read operation to the flash memory management module 40.
S4, the flash memory management module 40 successively after the master controller 20 and the usb 10 with external equipment
Carry out data transmission.
When current detection fingerprint is with authorizing fingerprint to coincide, the store function of the flash memory management module 40 is opened, user
Data can be read from the flash memory 43 by flash controller 41 or write data to the flash memory 43, the data are successively through institute
Carry out data transmission after stating master controller 20 and the usb 10 with external equipment.
The foregoing is merely the embodiment of the present invention, is not intended to limit the scope of the invention, every to utilize this reality
The equivalent structure or equivalent flow shift made with type specification and accompanying drawing content, is directly or indirectly used in other relevant
Technical field, is included within the scope of the present invention.
Claims (10)
- A kind of 1. fingerprint U disk, it is characterised in that master controller, authentication module and the flash memory pipe connected including USB interface and two-by-two Module is managed, the authentication module includes microcontroller and the fingerprint module being connected with the microcontroller；The USB interface, for connecting the master controller and external equipment, realizes that external equipment powers the master controller And the data transfer between external equipment and the master controller；The master controller, for providing electric energy to the authentication module and being responsible for the communication with external equipment；The fingerprint module, for gathering current detection fingerprint and sending the current detection fingerprint and the mandate fingerprint that prestores extremely The microcontroller；The microcontroller, for judging whether current detection fingerprint matches with the mandate fingerprint to prestore, and if current detection Fingerprint matches with the mandate fingerprint to prestore, then to the flash memory management module for power supply；The flash memory management module, for carrying out data transmission with the master controller.
- 2. fingerprint U disk according to claim 1, it is characterised in that the flash memory management module includes being used to store data Flash memory and for from the flash memory read data or to the flash memory write-in data flash controller, the flash controller Communicate and connect with the master controller, the flash controller and the microcontroller are electrically connected.
- 3. fingerprint U disk according to claim 2, it is characterised in that the fingerprint module includes fingerprint collecting subelement, refers to Line storing sub-units and fingerprint transmission sub-unit, wherein,The fingerprint collecting subelement, for gathering the image of current detection fingerprint；The fingerprint storing sub-units, fingerprint is authorized for storing；The fingerprint transmission sub-unit, for sending the current detection fingerprint of collection and the mandate fingerprint to prestore to described Microcontroller.
- 4. fingerprint U disk according to claim 3, it is characterised in that the microcontroller includes receiving unit, judging unit And power supply unit, wherein,The receiving unit, the mandate for receiving the fingerprint transmission sub-unit current detection fingerprint sent and prestoring refer to Line；The judging unit, for judging whether the current detection fingerprint matches with the mandate fingerprint to prestore；Said supply unit, if coincideing for presently described detection fingerprint with the mandate fingerprint to prestore, to the flash memory Controller is powered.
- 5. fingerprint U disk according to claim 4, it is characterised in that the authentication module further includes authenticating unit and fingerprint Administrative unit；The authenticating unit is used to verify whether the PIN code currently inputted is correct；The fingerprint management unit is used to update the mandate fingerprint to prestore in the fingerprint storing sub-units, what is currently inputted When PIN fingerprint codes are correct, typing current detection fingerprint is mandate fingerprint, or deletes and authorize fingerprint.
- 6. fingerprint U disk according to claim 5, it is characterised in that the fingerprint U disk further includes the first LED light, second LED light and the 3rd LED light, and be electrically connected with the fingerprint collecting subelement, the judging unit and the fingerprint management unit Connect to control first LED light, the based on the fingerprint collecting subelement, the judging unit and the fingerprint management unit The LED drive control devices that two LED light and the 3rd LED light shine.
- 7. fingerprint U disk according to claim 6, it is characterised in that the LED drive control devices include being based on the fingerprint The first drive circuit when controlling first LED light to flicker during collected works cell operation, the comparison knot based on the judging unit Fruit controls the second drive circuit of the second LED light flicker and based on the fingerprint management unit typing or deletion fingerprint control 3rd drive circuit of the 3rd LED light flicker.
- 8. a kind of data transmission method of fingerprint U disk, it is characterised in that the fingerprint U disk includes USB interface and connects two-by-two Master controller, authentication module and flash memory management module, the authentication module include microcontroller and are connected with the microcontroller The fingerprint module connect, described method includes following steps：When the USB interface is connected with external equipment, the external equipment is by the master controller to the microcontroller Power supply, the microcontroller start the fingerprint module；The fingerprint module gathers current detection fingerprint and sends the current detection fingerprint and the mandate fingerprint that prestores is to described Microcontroller；The microcontroller judges whether current detection fingerprint matches with the mandate fingerprint to prestore, and current detection fingerprint with When the mandate fingerprint to prestore matches, the microcontroller is to the flash memory management module for power supply；The flash memory management module carries out data transmission after the master controller and the USB interface with external equipment successively.
- 9. the data transmission method of fingerprint U disk according to claim 8, it is characterised in that the flash memory management module bag Include the flash memory for storing data and for reading data or the flash controller to flash memory write-in data from the flash memory, The flash controller and master controller communication connection, the flash controller and the microcontroller are electrically connected.
- 10. the data transmission method of fingerprint U disk according to claim 8 or claim 9, it is characterised in that the authentication module is also Including authenticating unit and fingerprint management unit；The authenticating unit is used to verify whether the PIN code currently inputted is correct；The fingerprint management unit is used for the mandate fingerprint for updating the fingerprint module, correct in the PIN fingerprint codes currently inputted When, typing current detection fingerprint is mandate fingerprint, or deletes and authorize fingerprint.
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| CN201711325765.2A CN107958281A (en) | 2017-12-13 | 2017-12-13 | Fingerprint U disk and its data transmission method |
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| CN201711325765.2A CN107958281A (en) | 2017-12-13 | 2017-12-13 | Fingerprint U disk and its data transmission method |
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| CN109284246A (en) * | 2018-08-21 | 2019-01-29 | 宁波明科机电有限公司 | Usb data reads system |
| CN109284246B (en) * | 2018-08-21 | 2023-04-18 | 宁波明科机电有限公司 | USB data reading system |
| CN113536340A (en) * | 2021-06-29 | 2021-10-22 | 深圳市高德信通信股份有限公司 | Data encryption equipment and method |
| CN113536340B (en) * | 2021-06-29 | 2023-09-29 | 深圳市高德信通信股份有限公司 | Data encryption equipment and method |
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Application publication date: 20180424 |