CN203773536U - Cryptographic mobile hard disk box with memory card copying function - Google Patents
Cryptographic mobile hard disk box with memory card copying function Download PDFInfo
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- CN203773536U CN203773536U CN201420071824.3U CN201420071824U CN203773536U CN 203773536 U CN203773536 U CN 203773536U CN 201420071824 U CN201420071824 U CN 201420071824U CN 203773536 U CN203773536 U CN 203773536U
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Abstract
The utility model discloses a cryptographic mobile hard disk box with a memory card copying function. The cryptographic mobile hard disk box comprises a data interface, an internal hard disc, a keystroke detection circuit, a main control circuit, a user password identifying and controlling circuit, a power management circuit, a rechargeable battery, an external memory card interface, and a memory card copying controlling circuit, wherein the data interface is connected with external main equipment; the internal hard disc is provided with a hard disc interface; the keystroke detection circuit acquires keystroke information; the main control circuit connects the data interface and the hard disc interface; the user password identifying and controlling circuit is connected with the keystroke detecting circuit and the main control circuit; the power management circuit is connected with the internal hard disc, the main control circuit, and the user password identifying and controlling circuit to supply power; the rechargeable battery is connected with the power management circuit; the external memory card interface can be connected with an external memory card; the memory card copying controlling circuit is connected with the main control circuit and the external memory card interface. The cryptographic mobile hard disk box not only can supply power, but also can realize data copying of an external memory card independently, realizes functional diversification, and improves security of data storage.
Description
[technical field]
The utility model relates to memory device field, particularly a kind of encryption mobile hard disc box of storage card copy function.
[background technology]
Along with internet widespread use with rapid changepl. never-ending changes and improvements, universal and the mobile concept of all kinds of digital consumption electronic products is at the development from business office to every field such as personal entertainment leisure, the storage demand of personal information, especially the speed of the demand growth to mobile storage becomes more and more faster.In the last few years, in mobile storage market, portable hard drive with it with respect to the higher access speed of disc storing (as CDRWDVDRW etc.), simpler access procedure and with respect to the larger capacity of flash memory storage (being USB flash disk), the advantages such as lower price, more and more be subject to ordinary consumer and commercial user's favor, the market space is also increasing.
When movable storage device brings portable benefit, also strengthen the requirement of people to aspects such as data security, equipment privacy, power down protection performances.There is at aspects such as data security and power down protection performances the bottleneck that is difficult to overcome in traditional portable hard drive always.Be no matter to adopt built-in mechanical hard disk or solid state hard disc as memory device, the damage probabilities such as when occurring in the situation of unexpected power down, that traditional portable hard drive all can existence dish is impaired, loss of data, file system destruction, will cause whole dish to be scrapped when serious.Therefore in essence, all problems all can be summed up as safety issue, and pursue safer, more practical portable hard drive-be the trend of social development.
Mobile hard disc box product in the market, can facilitate user flexibility configuration hard disk; Mobile hard disc box product with encryption function is also having larger improvement aspect data encryption and equipment privacy simultaneously, but is not resolved yet at the root problem aspect the data securities such as power down protection; The hard disk kind configuring voluntarily due to user is in addition a lot, large for power consumption, peak operation current is large hard disk-bring pressure and reading and writing data hidden danger inevitably to the power supply of hard-disk cartridge.
Another shortcoming of tradition portable hard drive is need to rely on computer just can carry out data storage work, thereby limit its Function Extension, can not give full play to its large capacity storage effectiveness, such as not carrying out copy function etc. to the storage card of the portable digital equipment of user independently.
In addition on the one hand, for the variation day by day of digital product function, use more frequent, how associated also more and more closer with our daily life, improve the service time of digital product and electronic product, the life being convenient for people to, supplement power supply in time, to bring into play the importance that its maximum work uses just more very urgent.Portable power source in the market belongs to self product, and function is comparatively single, fails to bring into play its effectiveness aspect power down protection, uninterrupted power supply.
Therefore, be necessary to propose a kind of improved technical scheme and overcome the problems referred to above.
[utility model content]
The purpose of this utility model is to provide a kind of encryption mobile hard disc box with storage card copy function, it can be not only self power supply, can also power to external unit, realize the variation of function, can also carry out copy function to user's external memory card independently simultaneously.
To achieve these goals, the utility model discloses a kind of encryption mobile hard disc box with storage card copy function, it comprises: the data-interface being connected with outside main equipment; There is the built-in hard disk of hard-disk interface; Obtain the key press detecting circuit of key information; The governor circuit of connection data interface and hard-disk interface; The user cipher identification and the control circuit that are connected with described governor circuit with described key press detecting circuit; Electric power management circuit, it is identified to be connected with control circuit with described built-in hard disk, governor circuit and user cipher and thinks that they provide power supply; The rechargeable battery being connected with electric power management circuit, can connect the external memory card interface of external connection of storage card, the storage card being connected with described governor circuit and described external memory card interface copy control circuit.
Further, described governor circuit comprises the first controller being connected with described data-interface, and the second controller that is connected of described hard-disk interface and be responsible for the first microcontroller of the data-switching between two kinds of controllers.
Further, described governor circuit also comprises encryption and decryption module, described the first microcontroller allows described encryption and decryption module to run between the first controller and second controller in the time of the unlocking signal receiving from user cipher identification and control circuit, after being encrypted from the data of the first controller, send to second controller, after being decrypted from the data of second controller, send to the first controller.
Further, described user cipher identification and control circuit comprise storage unit and the second microcontroller, described memory cell contains code data, described microcontroller obtains the key information from key press detecting circuit, and it is mated with the code data in described storage unit, if both match, send unlocking signal to the first microcontroller of described governor circuit.
Further, encrypt mobile hard disc box and also comprise charging inlet and electric discharge interface, described electric power management circuit is also connected with electric discharge interface with described charging inlet, described rechargeable battery provides power supply via described electric power management circuit for described built-in hard disk, governor circuit and user cipher identification and control circuit, and described rechargeable battery provides power supply via described electric power management circuit for described electric discharge interface; Described charging inlet is described rechargeable battery charging via described electric power management circuit.
Further, described data-interface is USB interface, this USB interface is also connected with described electric power management circuit, in the time that described USB interface is connected with outside main equipment, described USB interface is for providing power supply via described electric power management circuit for the charging of described rechargeable battery or for described built-in hard disk, governor circuit and user cipher identification and control circuit.
Further, described electric power management circuit comprises power source path management circuit, booster circuit and management of charging and discharging circuit, described power source path management circuit and described USB interface, charging inlet, described built-in hard disk, governor circuit, user cipher identification and control circuit, management of charging and discharging circuit is connected with booster circuit, described management of charging and discharging circuit is connected with described rechargeable battery, described booster circuit is connected with described electric discharge interface, and described rechargeable battery is described built-in hard disk through management of charging and discharging circuit and described power source path management circuit, governor circuit, user cipher identification and control circuit provide power supply, and described rechargeable battery is through management of charging and discharging circuit, described power source path management circuit and described booster circuit provide power supply for described electric discharge interface, described USB interface and/or described charging inlet are described rechargeable battery charging by described power source path management circuit and described management of charging and discharging circuit, and described USB interface is described built-in hard disk by described power source path management circuit, governor circuit, user cipher identification and control circuit provide power supply.
Further, in the time that outside main equipment accesses USB interface and obtain power supply from this outside main equipment, power source path management circuit is in the situation that meeting system power supply, rechargeable battery is charged simultaneously, in the time that system's work-load is heavier, power source path management circuit will reduce the charging even stopping rechargeable battery automatically, and under system works event of overload, rechargeable battery can be to system feed together with outside main equipment.
Further, described storage card copy control circuit includes data switch and the card reader control circuit being connected with described external memory card interface, in the time that data switch switches to described card reader control circuit, external memory card is by external memory card interface, card reader control circuit, data switch and governor circuit and described built-in hard disk are set up communication, to realize directly data manipulation between described external memory card and described built-in hard disk, in the time that data switch does not switch to described card reader control circuit, cut off the Data Communications Channel of card reader control circuit and described governor circuit.
Further, described user cipher identification and control circuit can carry out password authentification, detect that at key press detecting circuit predetermined key is pressed, and after the password authentification carried out of described user cipher identification and control circuit passes through, described data switch is switched to described card reader control circuit.
Compared with prior art, the utility model is by arranging electric power management circuit, storage card copy control circuit, rechargeable battery, it can be so not only himself power supply, can also be in the situation that there is no external USB main equipment, the data copy of complete independently external memory card storage, has realized the variation of function.In addition by user cipher identification and control circuit and encryption and decryption module are set, thereby can be encrypted the data that write in described built-in hard disk, the data of reading described built-in hard disk are decrypted, further improve the security of data storages.
[brief description of the drawings]
Below in conjunction with accompanying drawing and example, the utility model is further illustrated.
Fig. 1 is the structured flowchart in one embodiment of encryption mobile hard disc box of Tape movement power supply in the utility model and storage card copy function;
Fig. 2 is governor circuit in the encryption mobile hard disc box in Fig. 1 design concept figure in one embodiment;
Fig. 3 is user cipher identification and the control circuit design concept figure in one embodiment in the encryption mobile hard disc box in Fig. 1;
Fig. 4 is key press detecting circuit in the encryption mobile hard disc box in Fig. 1 design concept figure in one embodiment;
Fig. 5 is electric power management circuit in the encryption mobile hard disc box in Fig. 1 design concept figure in one embodiment;
Fig. 6 is storage card copy control circuit and the external memory card design concept figure in one embodiment in the encryption mobile hard disc box in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing and example, the utility model is described further.
This time illustrated accompanying drawing is to be used to provide further understanding of the present utility model, forms a part of the present utility model, and schematic example of the present utility model and explanation thereof are used for explaining the utility model, do not form improper restriction of the present utility model.
Fig. 1 is the structured flowchart in one embodiment of encryption mobile hard disc box of the Tape movement power supply in the utility model.As shown in Figure 1, described encryption mobile hard disc box, it comprises the data-interface 21 being connected with outside main equipment 7, there is the built-in hard disk 2 of hard-disk interface, obtain the key press detecting circuit 4 of key information, the governor circuit 1 of connection data interface 21 and hard-disk interface, the user cipher identification and the control circuit 3 that are connected with described governor circuit 1 with described key press detecting circuit 4, charging inlet 22, electric discharge interface 23, the electric power management circuit 5 being connected with described electric discharge interface 23 with described charging inlet 22, the rechargeable battery 6 being connected with electric power management circuit 5, can connect the external memory card interface 24 of external connection of storage card 11, the storage card copy control circuit 10 being connected with described governor circuit 1 and described external memory card interface 24.Also identification is connected and thinks that they provide power supply with control circuit 3 described electric power management circuit 5 with user cipher with described built-in hard disk 2, governor circuit 1.
Described governor circuit 1 comprises the first controller being connected with described data-interface 21, and the second controller that is connected of described hard-disk interface and be responsible for the first microcontroller of the data-switching between two kinds of controllers.In one embodiment, described data-interface 21 is USB3.0(Universal Serial Bus3.0, USB (universal serial bus) 3.0) interface, described the first controller is USB controller, described outside main equipment is USB main equipment, described governor circuit 1 adopts USB3.0 agreement and outside main equipment communication, described hard-disk interface is SATA (Serial Advanced Technology Attachment, Serial Advanced Technology Attachment, a kind of serial hardware driver interface based on industry standard) interface, second controller is SATA interface, described governor circuit 1 adopts SATA agreement and built-in hard disk communication, described first microprocessor is responsible for conversion and the bridge joint of communications protocol.Described governor circuit 1 also comprises encryption and decryption module, described the first microcontroller allows described encryption and decryption module to run between the first controller and second controller in the time of the unlocking signal receiving from user cipher identification and control circuit 3, after being encrypted from the data of the first controller, send to second controller, after being decrypted from the data of second controller, send to the first controller.
The identification of described user cipher comprises the second microcontroller with control circuit 3, the storage unit being connected with described the second microcontroller, the released state indicating member being connected with described the second microcontroller.Described memory cell contains code data, described the second microcontroller obtains the key information from key press detecting circuit 4, and described key information is mated with the code data in described storage unit, if both match, send unlocking signal to the first microcontroller of described governor circuit 1, if both do not mate, do not send unlocking signal to the first microcontroller of described governor circuit 1.In a specific embodiment, described storage unit is EEPROM (Electrically Erasable Programmable Read-Only Memory is called for short EEPROM).Described released state indicating member is for the released state of described mobile hard disc box, and such as being LED lamp, such as green color is released state, all the other are non-released state.Described the second microcontroller can also be by electric power management circuit 5 described in control line control to determine whether to start the portable power source function of described mobile hard disc box.In the time starting the portable power source function of described mobile hard disc box, described rechargeable battery 6 is allowed through described electric power management circuit 5 and electric discharge interface 23 supplying power for outsides.
Described key press detecting circuit 4 can be capacitance touch button chip, and it is with I
2c or serial communication mode are connected with described user cipher identification and control circuit 3, and it is responsible for the detection and Identification of button, and key information is passed through to I
2c or serial communication mode feed back to user cipher identification and control circuit 3.
Described rechargeable battery 6 provides power supply via described electric power management circuit 5 for described built-in hard disk 2, governor circuit 1 and user cipher identification and control circuit 3.In the time that described electric discharge interface 23 accesses external portable equipment 9, described rechargeable battery 6 provides power supply via described electric power management circuit 5 for described electric discharge interface 23, and then powers to described external portable equipment 9.External power adapter 8 can access described charging inlet 22, and carries out rapid charge via described charging inlet 22 and described electric power management circuit 5 for described rechargeable battery 6.In the time that described data-interface 21 is USB interface, this USB interface is also connected with described electric power management circuit 5, in the time that described USB interface is connected with outside main equipment 7, described USB interface is for charging or provide power supply for described built-in hard disk 2, governor circuit 1 and user cipher identification and control circuit 3 for described rechargeable battery 6 via described electric power management circuit 5.
Described electric power management circuit comprises power source path management circuit, booster circuit and management of charging and discharging circuit.Described power source path management circuit is connected with booster circuit with control circuit 3, management of charging and discharging circuit with described USB interface 21, charging inlet 22, described built-in hard disk 2, governor circuit 1, user cipher identification.Described management of charging and discharging circuit is connected with described rechargeable battery 6, described booster circuit is connected with described electric discharge interface 23, described rechargeable battery 6 is described built-in hard disk 2 through management of charging and discharging circuit and described power source path management circuit, governor circuit 1, user cipher identification and control circuit 3 provide power supply, described rechargeable battery 6 is through management of charging and discharging circuit, described power source path management circuit is that the external portable equipment 9 being connected with described electric discharge interface charges with described booster circuit, described USB interface 21 and/or described charging inlet 22 are that described rechargeable battery 6 charges by described power source path management circuit and described management of charging and discharging circuit, described USB interface 21 can be described built-in hard disk 2 by described power source path management circuit, governor circuit 1, user cipher identification and control circuit 3 provide power supply.
Described external memory card 11 can be SD card (Secure Digital, secure data card), micro SD card (TF), mmc card (Multimedia, multimedia), the form such as MS (Memory Stick, memory stick).Described external memory card interface 24 is the corresponding interface of external memory card 11, such as SD slot.Described storage card copy control circuit 10 includes data switch and the card reader control circuit being connected with described external memory card interface 24.
In the time that data switch switches to described card reader control circuit, external memory card 11 is set up communication by external memory card interface 24, card reader control circuit, data switch and governor circuit 1 with described built-in hard disk 2, to realize directly data manipulation between described external memory card and described built-in hard disk.In one embodiment, card reader control circuit reads the file data in external memory card 11, and pass to governor circuit 1 by the communication modes of USB, bridge joint governor circuit 1 is encrypted data file again, then store built-in hard disk 2 into by the communication modes of SATA, thereby complete external memory card copy function.In the time that data switch does not switch to described card reader control circuit, cut off the Data Communications Channel of card reader control circuit and described governor circuit 1.
After by described user cipher identification and control circuit 3 release successes, if key press detecting circuit 4 detects that " storage card copy key " driven, can described data switch be switched to described card reader control circuit by described governor circuit 1, thereby complete aforesaid external memory card copy function.
Like this, the encryption mobile hard disc box of described Tape movement power supply not only can be used as safe hard-disk cartridge and uses, can also use as portable power source, and its built-in rechargeable battery is also the power supply of built-in hard-disk cartridge, thereby avoid unexpected power-off and the problems such as the dish that causes is impaired, loss of data, file system destruction.In addition, described mobile hard disc box also has the function of encryption and decryption, has ensured the security of the data in hard disk.In addition, described encryption mobile hard disc box can also, in the situation that there is no external USB equipment, independently be realized external memory card copy function.
Encryption and decryption module in main control chip circuit 1 is responsible for data high-speed encryption and decryption computing, can be AES (Advanced Encryption Standard, AES) encryption/decryption element, RSA/SM2 coprocessor, Zu Chongzhi algorithm encryption/decryption element etc.; Between main control chip circuit 1 and user cipher identification and control circuit 3, adopt SPI (Serial Peripheral interface, Serial Peripheral Interface) communication, and authorize the read-write to hard disk by the latter.Built-in hard disk (2) is mechanical hard disk or the solid state hard disc with SATA hard-disk interface.The outside main equipment 7 of USB can be the main equipment with USB communication interface such as PC, IPAD.
Described electric power management circuit 5 can be responsible for the power source path management of management of charging and discharging to rechargeable battery 6 and system feed.While obtaining power supply when access and from the outside main equipment 7 of USB, power source path management circuit, in the case of meeting system feed (i.e. the power supply to built-in hard disk 2, governor circuit 1 and user cipher identification and control circuit 3), charges to rechargeable battery 6 simultaneously; In the time that system's work-load is heavier, power source path management circuit 5 will reduce the charging even stopping rechargeable battery 6 automatically; Under event of overload, rechargeable battery 6 can be to system feed together with the outside main equipment 7 of USB, thereby forms the power down protection mechanism to system uninterrupted power supply.
Hard-disk cartridge has two charging inlets (USB interface 21 and special charging inlet 22) to rechargeable battery (6), external USB main equipment 7 and external power adapter 8 are charged to described rechargeable battery 6 by corresponding charging inlet, wherein external power adapter 8 can provide larger charging current, to realize the rapid charge to rechargeable battery 6.Electric power management circuit (5) possesses the detection and Identification function to charging port supplied character, compatible USB2.0, USB3.0, BC1.2, YD/T1591-2009 etc.Rechargeable battery 6 is except can, to inner system power supply, also can, as portable power source, charging to outside portable equipment 9.Externally electric discharge interface compatibility BC1.2, YD/T1591-2009 and frequency divider pattern etc.
The course of work of mobile hard disc box of the present utility model is as follows.Hard-disk cartridge original state is for locking (or claiming not released state), and before to built-in hard disk 2 read-writes, user need to input password and carry out unlocking operation; In the time of released state not, user can not read and write built-in hard disk 2 on the outside main equipment 7 of USB, and only can only see drive.When after the outside main equipment 7 of hard-disk cartridge access USB, first user inputs password and carries out unlocking operation, could on the outside main equipment 7 of USB, carry out read-write operation to hard disk; User also can first input password and carry out unlocking operation on hard-disk cartridge, and then hard-disk cartridge is accessed to the outside main equipment 7 of USB.
Releasing process: first key press detecting circuit 4 passes to user's key information user cipher identification and control circuit 3; User cipher identification and control circuit 3 extract the password of user's input from described key information, and itself and the former user password information that has storage unit (EEPROM) are contrasted, if both conform to or match, represent unlocking operation success; Meanwhile, successful release information is fed back to governor circuit 1 by user cipher identification and control circuit 3, and by released state indicating circuit, prompting user built-in hard disk 2 is in released state, and whole releasing process finishes.
Hard disc data read-write and encryption and decryption process: when after the outside main equipment 7 of hard-disk cartridge access USB, first governor circuit 1 completes initialization and configuration, then waits for the release information of user cipher identification and control circuit 3; When receiving after release information, the read-write operation of 1 permission of governor circuit to built-in hard disk 2; In read-write operation process, carry out the encryption and decryption of data simultaneously, above-mentioned encryption and decryption process is automatically to complete, and interferes without user.
Battery charging and discharging and power source path management process: when the outside main equipment 7 of hard-disk cartridge access USB and obtain after power supply, electric power management circuit 5 will automatically distribute and manage the feed to system and the charging to rechargeable battery 6; In the time that system's work-load is heavier, electric power management circuit 5 will reduce the charging even stopping battery 6 automatically; Under event of overload, battery 6 can be to system feed together with the outside main equipment 7 of USB.
In the time that mobile hard disc box charges to USB external portable equipment 9 as portable power source, first electric power management circuit 5 boosts the voltage of rechargeable battery 6 (such as being raised to 5V) by booster circuit, then outside portable equipment 9 is charged.
External memory card copy procedure: when inserting external memory card 11, and external memory card is carried out to data whens copy, first will carry out unlocking operation; After release success, the data switch that user cipher identification and control circuit (3) copy storage card in control circuit 10 by governor circuit 1 is switched to card reader control circuit, and card reader control circuit will have been set up USB communication link with bridge joint governor circuit 1.Card reader control circuit reads the file data of external memory card, and pass to governor circuit 1 by the communication modes of USB, governor circuit 1 is encrypted data file again, then stores built-in hard disk 2 into by the communication modes of SATA, thereby completes external memory card copy function.
It is pointed out that the function of removing portable power source end in described encryption and decryption hard disk, and retain external memory card copy function, get rid of external charging port 23, in described management of charging and discharging circuit 5, also remove the interlock circuit with supplying power for outside.
Detailed description of the present utility model mainly illustrates by an example of the present utility model.Alleged " example ", refers to special characteristic, specific function, circuit structure and the electrical specification relevant to described utility model example herein, is at least contained at least one implementation of the utility model.Different in this manual local " in the hard-disk cartridge examples " that occur not all refer to a utility model example.In addition, represent that each device order the on-fixed of the design concept figure of one or more examples refers to any particular order, also the utility model is not construed as limiting.
Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 are the design concept figure of the utility model hard-disk cartridge example.
As shown in Figure 2, in an example of described utility model hard-disk cartridge, governor circuit 1 is mainly made up of GL3321G and SPI Flash; GN3221 is the bridge joint main control chip that the USB3.0 of GENESYS company release turns SATA III (6Gb/s), interior band AES ciphering unit; GN3221 compatible USB3.0, USB2.0, compatible SATA I, SATA II, SATA III protocol specification aspect SATA; Built-in 8051 microcontrollers; There is the communication interface such as SPI, UART; The firmware code of GL3321G is stored in outside SPI Flash.In described utility model hard-disk cartridge example, built-in hard disk (2) is mechanical hard disk or solid state hard disc with SATA interface;
As shown in Figure 3, in an example of described utility model hard-disk cartridge, user cipher identification and control circuit 3 comprise that PIC16F1829, key prompting voice circuit and status indicator lamp circuit form; PIC16F1829 is 8 low-power consumption RISC single-chip microcomputers that Microchip company releases, and interior band can 4K byte flash code area, 256 byte SRAM and 256 byte EEPROM; Article 49, single clock cycle instruction, dominant frequency can reach 32MHz etc.Status indicator lamp circuit comprises: unblank to indicate green light, lock and indicate red light, USB relay indicating light, battery electric quantity pilot lamp etc.Key prompting voice main circuit will be made up of single-stage audio driven pipe and hummer.
As shown in Figure 4, in an example of described utility model hard-disk cartridge, key press detecting circuit 4 is mainly made up of JG616L, touch key-press matrix circuit and status indicator lamp etc.JG616L is the 16 strong key capacitance touch button chips of antijamming capability that Lattice company releases, and has superpower waterproof, anti-tampering, anti-key-press from false action ability; Operating voltage 2.4V-5.5V, static working current is less than 10 microamperes; High and the capable of regulating of touch sensitivity; There is the characteristics such as I2C communication interface.Touch key-press matrix comprises ten key, and the function key such as " solution locking key ", " acknowledgement key ", " portable power source key ".
As shown in Figure 5, in described utility model hard-disk cartridge example, electric power management circuit 5 is mainly made up of BQ24195L, TPS2543, TPS61259 etc.Wherein BQ24195L is high integrated switched-mode battery charging management and the system power supply path management device that TI company releases, and has the protection features such as synchronous pressure-boosting converter, the management of NVDC power source path and overvoltage in 2.5A high efficiency switch-mode charger, 1A battery boost mode, overcurrent, thermal conditioning and heat shutoff; Battery charging mode according to user compatible USB2.0, USB3.0 and BC1.2.TPS2543 is the USB charging port controller chip of the bringing onto load measuring ability of TI company release, meets the charging such as BC1.2, YD/T1591-2009, frequency division pattern specification, has the power switch function of current limliting and short-circuit protection simultaneously.TPS61259 is the high efficiency DC-DC chip that boosts that TI company releases; When running frequency is 3.5MHz, efficiency can be up to 93%; There is the characteristics such as low quiescent current, underload PFM pattern, output accuracy +/-2%, real load disconnection, heat shutoff and overload protection.
As shown in Figure 5, in the example of described utility model hard-disk cartridge, the poly-lithium battery that rechargeable battery 6 is 3.7V/5000mAH forms.
In described utility model hard-disk cartridge example, external USB main equipment 7 is PC or notebook computer etc.External power adapter 8 is 5V/1.5A USB charger.External portable equipment (9) can be the equipment such as mobile phone, digital camera, panel computer.
As shown in Figure 6, in described utility model hard-disk cartridge example, storage card copy control circuit 10 is mainly made up of SD/MMC/MS card interface, SAM9G15, TS3USB3000RSER etc.SD/MMC/MS card interface is TF card interface form; SAM9G15 is the MPU with functions of card reader based on ARM926EJ-S core of Atmel company, interior band 16KB data buffer storage, 16KB instruction buffer, and dominant frequency can reach 400MHz, possesses USB2.0 high speed principal and subordinate interface, powerful; TS3USB3000RSER is the dpdt double-pole double-throw (DPDT) USB2.0 speed-sensitive switch of TI company.
In described utility model hard-disk cartridge example, external memory card (11) is TF card form.
The button operation of described utility model hard-disk cartridge example is illustrated as:
1) initial user password
Initial password before product export is 112233.Before the formal use of user, need to change password setting, to protect the data security of portable hard drive.
2) release
Use before portable hard drive each, must carry out unlocking operation, operation steps is as follows:
First ■ clicks < and separates the flicker of locking key >(traffic lights);
Then ■ inputs password by digital keys, clicks < acknowledgement key > release (after operating successfully, green light is glittering);
After ■ release, need, in 30 seconds, portable hard drive be accessed to computer and use; Otherwise can automatically cancel this unlocking operation (automatic locking).
3) lock
Upper latching operation completes automatically.After self-locking, as continued to use hard disk, need release again.Self-locking situation has following several situation:
After ■ release, portable hard drive did not access computer in 30 seconds, and this dish can be automatic locking.
■ disconnects the connection of portable hard drive and computer as user, and this dish can enter locking state immediately automatically.
■ is when in use procedure, and while occurring that computer enters dormant state, portable hard drive also can enter locking state automatically.
4) user cipher amendment
Modify steps is as follows: (need to extract hard disk from user's pc port, the off-line operation by powered battery mode)
First long press more than < separates locking key >3 second, unclamps (traffic lights are lasting bright);
The new password (password is the shortest 6, the longest 15) arranging is wanted in input for the first time, and presses < acknowledgement key > and confirm (traffic lights flicker);
Input for the second time new password, and press < acknowledgement key > and confirm and end operation.(green light flicker, represents that password arranges successfully, release simultaneously; If traffic lights are flicker alternately, user's Modify password failure)
5) password is inputted 10 times when wrong continuously, and portable hard drive can enter the anti-protection mechanism that cracks automatically
The data that ■ stores will be wiped free of, and set password will revert to the original password that dispatches from the factory (112233);
Before ■ reuses, user need to carry out release with the original password that dispatches from the factory (or the user cipher resetting), and portable hard drive is formatd.
6) reset liquidation function
In the time that user forgets Password, can use this function is the original password that dispatches from the factory by password recovery, but simultaneously by clear the data of whole dish, concrete operation step is as follows:
First ■, pins after < separates at least 3 seconds of locking key > simultaneously and unclamps; (traffic lights glimmer simultaneously)
Then, input " 110 ", confirms by < acknowledgement key > ■; (traffic lights are simultaneously bright)
■ portable hard drive will start reset function: remove all hard disc datas, original password becomes to dispatch from the factory by password recovery simultaneously.
Before ■ reuses, user need to carry out release with the original password that dispatches from the factory (or the user cipher resetting), and portable hard drive is formatd.
The specific works flow process of described utility model hard-disk cartridge example is:
When after the outside main equipment 7 of hard-disk cartridge access USB, first user inputs password and carries out unlocking operation, could on USB main equipment 7, carry out read-write operation to hard disk; User also can first input password and carry out unlocking operation on hard-disk cartridge, and then hard-disk cartridge is accessed to the outside main equipment 7 of USB.
Releasing process: by touching capacitance matrix, key press detecting circuit JG616L(4) detect user's button operation information, and I
2c communication modes, passes to the PIC16F1829 in user cipher identification and control circuit 3; PIC16F1829 extracts the password of user input from button operation information, and the user password information of itself and the former EEPROM of existence is contrasted, if both conform to, represents unlocking operation success; Simultaneously, PIC16F1829 feeds back to USB3.0 by successful release information and turns the bridge joint of SATA and the GL3321G governor circuit 1 of data encrypting and deciphering, and it is long bright to control release green indicating lamp, prompting user's hard disk (2) is in released state, and whole releasing process finishes.
Hard disc data read-write and encryption and decryption process:
When after the outside main equipment 7 of hard-disk cartridge access USB, USB3.0 turns the bridge joint of SATA and first the GL3321G governor circuit 1 of data encrypting and deciphering completes initialization and configuration, then waits for user cipher identification and control circuit PIC16F1829(3) release information; When receiving after release information, main control chip circuit GL3321G(1) allow the read-write operation to hard disk (2); In read-write operation process, carry out the encryption and decryption of data simultaneously, above-mentioned encryption and decryption process is automatically to complete, and interferes without user.
Battery charging and discharging and power source path management process:
When the outside main equipment 7 of hard-disk cartridge access USB and obtain after power supply, the BQ24195L in electric power management circuit 5 will automatically distribute and manage the feed to system and the Charge Management to rechargeable battery 6; In the time that system's work-load is heavier, BQ24195L will reduce the charging even stopping battery 6 automatically; Under event of overload, battery 6 can be to system feed together with external USB main equipment 7.TPS61259 rises to 5V by the system feed voltage of BQ24195L, then to inner circuit system feed.
In the time external USB portable equipment 9 being charged as portable power source, first the BQ24195L in electric power management circuit 5 is raised to 5V by the voltage of rechargeable battery 6, then by TPS2543, outside portable equipment 9 is charged.TPS2543 is responsible for and external USB portable equipment 9 carries out identification and the confirmation of charger pattern.
In embodiment as shown in Figure 6, external memory card copy procedure:
First to carry out unlocking operation, and external memory card 11 is inserted to the TF card interface in storage card copy control circuit 10; Then press " storage card copy key ".When the PIC16F1829 in user cipher identification and control circuit (3) recognizes after storage card copy function key operation, the selection pin (nS) that storage card is copied to the usb data switch chip TS3USB3000RSER in control circuit (10) is set to low level, TS3USB3000RSER is switched to card reader control chip SAM9G15 by usb data passage from the outside main equipment of external USB (7), is also that SAM9G15 and governor circuit (1) GL3321G has set up USB communication link.SAM9G15 reads the file data of external memory card automatically, and passes to governor circuit (1) GL3321G with the communication modes of USB; Governor circuit (1) GL3321G is encrypted data file again, then with the communication modes of SATA, stores built-in hard disk (2) into, thereby completes external memory card data copy function.
The utility model is carried out to the enough detailed description with certain singularity above.Those of ordinary skill in the field should be appreciated that.Description in the utility model example is only exemplary.USB3.0 described in the utility model turns the bridge joint of SATA and the main control chip circuit structure of data encrypting and deciphering is not limited to this kind of main control chip in utility model hard-disk cartridge example mentioned above, can be the bridge joint main control chip of the similar function of other models; User cipher identification described in the utility model and control circuit circuit structure are not limited to this kind of singlechip chip in utility model hard-disk cartridge example mentioned above, can be the singlechip chips of other models; Capacitance touch type key press detecting circuit structure described in the utility model is not limited to this kind of chip in utility model hard-disk cartridge example mentioned above, can be the capacitance touch button chip of other models; Management of charging and discharging described in the utility model and power source path management circuit structure are also not limited to Charge Management and the power source path managing chip in utility model hard-disk cartridge example mentioned above, can be the chips of the similar function of other models; The institute making under the prerequisite that does not depart from true spirit of the present utility model and scope changes and all should belong to protection domain of the present utility model.The claimed scope of the utility model is to be limited by described claims, instead of the description of utility model hard-disk cartridge example by mentioned earlier limits.
Claims (10)
1. the encryption mobile hard disc box with storage card copy function, is characterized in that: it comprises:
The data-interface being connected with outside main equipment;
There is the built-in hard disk of hard-disk interface;
Obtain the key press detecting circuit of key information;
The governor circuit of connection data interface and hard-disk interface;
The user cipher identification and the control circuit that are connected with described governor circuit with described key press detecting circuit;
Electric power management circuit, it is identified to be connected with control circuit with described built-in hard disk, governor circuit and user cipher and thinks that they provide power supply;
The rechargeable battery being connected with electric power management circuit,
Can connect the external memory card interface of external connection of storage card,
The storage card copy control circuit being connected with described governor circuit and described external memory card interface.
2. encryption mobile hard disc box as claimed in claim 1, it is characterized in that: described governor circuit comprises the first controller being connected with described data-interface, and the second controller that is connected of described hard-disk interface and be responsible for the first microcontroller of the data-switching between two kinds of controllers.
3. encryption mobile hard disc box as claimed in claim 2, it is characterized in that: described governor circuit also comprises encryption and decryption module, described the first microcontroller allows described encryption and decryption module to run between the first controller and second controller in the time of the unlocking signal receiving from user cipher identification and control circuit, after being encrypted from the data of the first controller, send to second controller, after being decrypted from the data of second controller, send to the first controller.
4. encryption mobile hard disc box as claimed in claim 3, it is characterized in that: described user cipher identification and control circuit comprise storage unit and the second microcontroller, described memory cell contains code data, described microcontroller obtains the key information from key press detecting circuit, and it is mated with the code data in described storage unit, if both match, send unlocking signal to the first microcontroller of described governor circuit.
5. encryption mobile hard disc box as claimed in claim 1, is characterized in that: it also comprises charging inlet and electric discharge interface, and described electric power management circuit is also connected with electric discharge interface with described charging inlet,
Described rechargeable battery provides power supply via described electric power management circuit for described built-in hard disk, governor circuit and user cipher identification and control circuit,
Described rechargeable battery provides power supply via described electric power management circuit for described electric discharge interface;
Described charging inlet is described rechargeable battery charging via described electric power management circuit.
6. encryption mobile hard disc box as claimed in claim 5, it is characterized in that: described data-interface is USB interface, this USB interface is also connected with described electric power management circuit, in the time that described USB interface is connected with outside main equipment, described USB interface is for providing power supply via described electric power management circuit for the charging of described rechargeable battery or for described built-in hard disk, governor circuit and user cipher identification and control circuit.
7. encryption mobile hard disc box as claimed in claim 6, is characterized in that: described electric power management circuit comprises power source path management circuit, booster circuit and management of charging and discharging circuit,
Described power source path management circuit is connected with booster circuit with described USB interface, charging inlet, described built-in hard disk, governor circuit, user cipher identification and control circuit, management of charging and discharging circuit,
Described management of charging and discharging circuit is connected with described rechargeable battery,
Described booster circuit is connected with described electric discharge interface,
Described rechargeable battery provides power supply through management of charging and discharging circuit and described power source path management circuit for described built-in hard disk, governor circuit, user cipher identification and control circuit,
Described rechargeable battery provides power supply through management of charging and discharging circuit, described power source path management circuit and described booster circuit for described electric discharge interface,
Described USB interface and/or described charging inlet are described rechargeable battery charging by described power source path management circuit and described management of charging and discharging circuit,
Described USB interface provides power supply by described power source path management circuit for described built-in hard disk, governor circuit, user cipher identification and control circuit.
8. encryption mobile hard disc box as claimed in claim 7, it is characterized in that: in the time that outside main equipment accesses USB interface and obtain power supply from this outside main equipment, power source path management circuit is in the situation that meeting system power supply, rechargeable battery is charged simultaneously, in the time that system's work-load is heavier, power source path management circuit will reduce the charging even stopping rechargeable battery automatically, and under system works event of overload, rechargeable battery can be to system feed together with outside main equipment.
9. encryption mobile hard disc box as claimed in claim 1, is characterized in that: described storage card copy control circuit includes data switch and the card reader control circuit being connected with described external memory card interface,
In the time that data switch switches to described card reader control circuit, external memory card is set up communication by external memory card interface, card reader control circuit, data switch and governor circuit and described built-in hard disk, to realize directly data manipulation between described external memory card and described built-in hard disk
In the time that data switch does not switch to described card reader control circuit, cut off the Data Communications Channel of card reader control circuit and described governor circuit.
10. encryption mobile hard disc box as claimed in claim 9, is characterized in that:
The identification of described user cipher and control circuit can carry out password authentification, detect that at key press detecting circuit predetermined key is pressed, and after the password authentification that described user cipher is identified and control circuit carries out passes through,
Described data switch is switched to described card reader control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420071824.3U CN203773536U (en) | 2014-02-19 | 2014-02-19 | Cryptographic mobile hard disk box with memory card copying function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420071824.3U CN203773536U (en) | 2014-02-19 | 2014-02-19 | Cryptographic mobile hard disk box with memory card copying function |
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| Publication Number | Publication Date |
|---|---|
| CN203773536U true CN203773536U (en) | 2014-08-13 |
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| CN201420071824.3U Expired - Fee Related CN203773536U (en) | 2014-02-19 | 2014-02-19 | Cryptographic mobile hard disk box with memory card copying function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103823768A (en) * | 2014-02-19 | 2014-05-28 | 杭州华澜微科技有限公司 | Encrypted mobile hard disk cartridge with memory card copying function |
| WO2016187982A1 (en) * | 2015-05-27 | 2016-12-01 | 深圳市和宏实业股份有限公司 | Mobile storage device |
-
2014
- 2014-02-19 CN CN201420071824.3U patent/CN203773536U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103823768A (en) * | 2014-02-19 | 2014-05-28 | 杭州华澜微科技有限公司 | Encrypted mobile hard disk cartridge with memory card copying function |
| CN103823768B (en) * | 2014-02-19 | 2017-01-18 | 杭州华澜微电子股份有限公司 | Encrypted mobile hard disk cartridge with memory card copying function |
| WO2016187982A1 (en) * | 2015-05-27 | 2016-12-01 | 深圳市和宏实业股份有限公司 | Mobile storage device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HANGZHOU SAGE MICROELECTRONICS, CORP. Free format text: FORMER NAME: HANGZHOU SAGE MICROELECTRONICS CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: Hangzhou City, Zhejiang province 311200 Xiaoshan District Road No. 66 Building No. 1 building 22 layer Huarui Center Patentee after: SAGE MICROELECTRONICS CORP. Address before: Hangzhou City, Zhejiang province 311200 Xiaoshan District Road No. 66 Building No. 1 building 22 layer Huarui Center Patentee before: Hangzhou Sage Microelectronics Technology Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20180219 |