CN209015189U - A kind of smart card - Google Patents
A kind of smart card Download PDFInfo
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- CN209015189U CN209015189U CN201821578761.5U CN201821578761U CN209015189U CN 209015189 U CN209015189 U CN 209015189U CN 201821578761 U CN201821578761 U CN 201821578761U CN 209015189 U CN209015189 U CN 209015189U
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- safety chip
- smart card
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Abstract
The utility model discloses a kind of smart card, there are two safety chip, working condition switching circuit and power supply circuits for the fixture；This is stuck in tool under the control of working condition switching circuit, and there are three types of working conditions；In hot storage state, the power-off of the first safety chip, the second safety chip is powered, and the second safety chip has the function of cold stored value card；In cold and hot swap status, the first and second safety chip is powered and all in off-line state, can carry out data interaction between the first and second safety chip；In hot storage state, the power-off of second safety chip, first safety chip has the function of conventional financial card and thermoelectron wallet, thus, the smart card has the function of hot and cold stored value card and conventional financial card, greatly it is beneficial to traditional financial application of IC cards expanding and extending to digital cash field, and the hot and cold storage state of smart card is electrically physically isolated based on power supply circuit in the present embodiment, safety is high.
Description
Technical field
The utility model relates to technical field of intelligent card more particularly to a kind of smart cards.
Background technique
In digital coin systems, cold storage is divided into the storage of digital cash and heat stores.
Cold storage is called and does offline storage, i.e. the storage under non-networking state of isolation, when not needing using digital cash
When, currency is placed under cold storage environment, since state completely cuts off, malicious attacker can not steal currency or right by network environment
It carries out malicious sabotage.The advantages of cold storage is to be in network state of isolation, highly-safe；Disadvantage is also very prominent, that is, needs solely
Vertical construction creates cold storage hardware environment.The safety of cold storage environment leads to various expensive cold stored value card
(be equipped with cold storage environment is separately embedded formula environment, the password that the excellent shield of appearance such as Internetbank or shape such as mobile terminal band are shown
Embedded system) product and application it is in the ascendant.
Heat storage is also known as on-line storage, and the application environment for possessing heat storage is known as thermoelectron wallet, is used for networked environment
The transfer online at any time of middle digital cash, such as the thermoelectron of computer client, mobile terminal the application modes such as (APP), webpage
Wallet can shift digital cash online, and the storage of the public and private key of digital cash, sensitive identity information is all hot storage.
Its advantage is that easy to use, networking operation currency transfer (transaction) is high-efficient at any time；The disadvantage is that it is in networking state, once by
Network malicious attack, such as malice monitoring, remote control, directly threaten to online hot storage environment, currency are caused to be lost,
It is very risky in the biggish situation of amount of money.In a prior art situation, the convenience of heat storage is that cold storage method cannot
Substitution.
Currently, cold stored value card and thermoelectron wallet are generally individually present, lack in the prior art one kind can play it is cold
The security advantages of storage, and it is able to satisfy the financial instrument of the convenience sexual clorminance of heat storage.
Utility model content
The main purpose of the utility model embodiment is to provide a kind of smart card, promoted cold memory technology use it is convenient
Property.
To achieve the above object, the utility model embodiment provides a kind of smart card, which includes: the first safe core
Piece, the second safety chip, working condition switching circuit and power supply circuit；
The power supply circuit is used to power for the smart card；
The working condition switching circuit respectively with first safety chip, second safety chip and the confession
Electric circuit connection, the working condition switching circuit are used to switch the working condition of the smart card, wherein the smart card is deposited
In following three kinds of working conditions: cold storage state, cold and hot swap status and hot storage state；
Wherein, under the cold storage state, the first safety chip power-off, and second safety chip is powered,
Second safety chip is based on cold stored value card technology storage user in the account information with digital cash account；
Under the cold and hot swap status, first safety chip and second safety chip are powered, and described second
Safety chip is connected with the connection of first safety chip；
Under the hot storage state, first safety chip is powered and second safety chip powers off, and described the
One safety chip has the function of conventional financial card and the function of thermoelectron wallet.
The utility model embodiment proposes a kind of smart card, and two safety chips, the present embodiment are provided in the smart card
Smart card have under the control of working condition switching circuit there are three types of working condition；In hot storage state, the first safety chip
Power-off, the second safety chip are powered, and the second safety chip can provide the function of cold stored value card；In cold and hot swap status, first,
Two safety chips are all powered and all in non-networked states, and data friendship can be carried out between the first safety chip and the second safety chip
Mutually；In hot storage state, the power-off of the second safety chip, the first safety chip has the function of conventional financial card and thermoelectron money
The function of packet, based on the above-mentioned setting to smart card, the smart card of the present embodiment has hot and cold stored value card and conventional finance
The function of card is greatly beneficial to traditional financial application of IC cards expanding and extending to digital cash field, in the second safe core
When piece is powered, smart card is in non-networked state, it is ensured that the safety of account in the second safety chip, and intelligence in the present embodiment
The hot and cold storage state that can block is based on power supply circuit and is electrically physically isolated, and can effectively resist the malicious attack for carrying out automatic network, have
High security.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those skilled in the art, without creative efforts, also
Other drawings may be obtained according to these drawings without any creative labor.
Fig. 1 is a kind of structural schematic diagram of smart card provided by the embodiment of the utility model；
Fig. 2 is the structural schematic diagram of another smart card provided by the embodiment of the utility model；
Fig. 3 is the structural schematic diagram of another smart card provided by the embodiment of the utility model；
Fig. 4 is the structural schematic diagram of another smart card provided by the embodiment of the utility model.
Specific embodiment
It, below will knot to enable the purpose of utility model, feature, advantage of the utility model more obvious and understandable
The attached drawing in the utility model embodiment is closed, the technical scheme in the utility model embodiment is clearly and completely described,
Obviously, the described embodiments are only a part of the embodiments of the utility model, and not all embodiments.Based on the utility model
In embodiment, those skilled in the art's every other embodiment obtained without making creative work, all
Belong to the range of the utility model protection.
Currently, digital cash project is a kind of very popular trading item, in the transaction of digital cash, cold storage with
Favor of its high security by user, but current cold stored value card is lacking in property easy to use, cannot be use
Bring good usage experience in family.
In order to enable user can quickly and conveniently use cold stored value card, the utility model embodiment proposes a kind of intelligence
It can block, referring to Fig. 1, which includes:
First safety chip 11 and the second safety chip 12, working condition switching circuit 13 and power supply circuit 14；
Power supply circuit 14 is used to power for smart card；
Working condition switching circuit 13 connects with the first safety chip 11, the second safety chip 12 and power supply circuit 14 respectively
It connects, working condition switching circuit 13 is used to switch the working condition of smart card, wherein there are following three kinds of work shapes for smart card
State: cold storage state, cold and hot swap status and hot storage state；
Wherein, under cold storage state, the power-off of the first safety chip 11, and the second safety chip 12 is powered, the second safety
Chip 12 is based on cold stored value card technology storage user in the account information with digital cash account；
Under cold and hot swap status, the first safety chip 11 and the second safety chip 12 are powered, the second safety chip 12 tool
The standby function that data interaction is carried out with the first safety chip 11；
Under hot storage state, the first safety chip 11 is powered and the second safety chip 12 powers off, the first safety chip tool
The standby function of conventional financial card and the function of thermoelectron wallet.
The present embodiment realized on a sheet smart card cold stored value card and its cold storage environment and cold stored value card to
The secure interactive environment of thermoelectron wallet, the hot and cold storage environment that smart card provides in the present embodiment are based on power supply circuit presence
Electrical physical isolation, the physical isolation can effectively resist the malicious attack for carrying out automatic network, have a high security, and the present embodiment
Smart card has the function of cold storage and heat storage, and convenience is higher.
In the present embodiment, power supply circuit 14 can be with the first safety chip 11, the second safety chip 12 and working condition
13 direct or indirect connection of switching circuit is when needed the first safety chip 11, the second safety chip 12 and work shape
State switching circuit 13 is powered.
The first safety chip 11 and the second safety chip 12 in the present embodiment can use the higher chip of safety, example
Such as financial level safety chip, financial level safety chip passes through hundreds of millions magnitude safety cities in fields such as finance, social security, health
Field test can be effective against side channel, error injection and physics the intrusion attack etc. for integrated circuit, even if in heat storage
Under state, the safety of financial level safety chip is also higher more than traditional PC machine or mobile terminal APP.
Optionally, in the present embodiment use Intelligent card package appearance forrns, it is convenient to be placed in user daily wallet and
Ka Baonei is convenient for carrying.Optionally, the thickness of the smart card in the present embodiment is no more than the thickness of conventional financial card, smart card
Length and width and conventional financial card length and width require matching.
In the present embodiment, the first safety chip 11 and the second safety chip 12 are embedded with software module, optionally, second
It is embedded with for example cold electronic wallet application of software needed for realizing cold storage in safety chip 12, is stored in the first safety chip 11
Realize the software of software (such as thermoelectron wallet application) and certain conventional financial functions of hot store function.Have in the present embodiment
The type for having the smart card of financial function includes but is not limited to bank card, financial social security card, residents ' health card etc..
In the present embodiment, the first safety chip 11 and the second safety chip 12 can be with universal standard input-output apparatus
(input/output, I/O) interface inter-link, such as Serial Peripheral Interface (SPI) (Serial Peripheral Interface, SPI), always
Line interface (Inter-Integrated Circuit, I2C) etc., but it is also not limited to these interfaces.It is understood that the
One safety chip 11 and the interconnection of the second safety chip 12 are not represented and whenever can be communicated between them, but can only be
The connection of first safety chip and the second safety chip is communicated when (namely under cold and hot swap status) is connected.First
The conducting and disconnection of connection between safety chip 11 and the second safety chip 12 are controlled by working condition switching circuit 13, work
Make the concrete condition view of the circuit connection between state switching circuit 13 and the first safety chip 11 and the second safety chip 12
Depending on the specific structure of first safety chip 11, the second safety chip 12 and working condition switching circuit 13, the present embodiment pair
There is no limit for this.
It in the present embodiment, can phase between cold and hot swap status, the first safety chip 11 and the second safety chip 12
Mutual communication, the data of interaction include but is not limited to the account information of digital cash account between them, such as in cold and hot exchange shape
State, the second safety chip 12 believe the user itself stored with the account of digital cash account (for ease of description, being denoted as A)
Breath is sent to the first safety chip 11, and later, in hot storage state, the first safety chip 11 can be with regard to user with digital cash
The account information of account A completes transaction.Generally, in the agreement of digital cash, old user exists with digital cash account
It needs to be abandoned after transaction and uses new user in the digital cash with digital cash account storage user, so this implementation
In example, user is just being abandoned use with digital cash account A after the trade, and the first safety chip will be existed using new user
With account number monetary accounts come the digital cash after store transaction.In the present embodiment, these new users are with account number
Word monetary accounts can be generated by the second safety chip 12, and/or be generated by the first safety chip 11, and the present embodiment is to this
There is no limit.
In the present embodiment, the account information of digital cash account includes but is not limited to address and the private of digital cash account
Key, in one example, the account information of digital cash account can also include public affairs corresponding with the private key in account information
Key.The first safety chip and the second safety chip can first generate public private key pair and according to public key generated address in the present embodiment,
To obtain the account information of digital cash account.
In the present embodiment, smart card has user in cold and hot swap status in the storage state with digital cash account
Become hot storage state from cold storage state, or becomes the function of cold storage state from hot storage state；Optionally, in cold and hot friendship
Change state, second safety chip 12 of the present embodiment, which has to the first safety chip 11, sends user that it is stored with digital goods
The account information of coin account and/or the account information of redundant digital monetary accounts, and new use is read from the first safety chip
Function of the family in the account information with digital cash account.Correspondingly, there is the first safety chip the second safety chip of reading to deposit
The user of storage is with the account information of digital cash account and/or the account information of redundant digital monetary accounts, and to second
Safety chip sends new user in the function of the account information with digital cash account.
In the present embodiment the first safety chip 11 can by oneself generate redundant digital monetary accounts account information with
And from the account informations of the received redundant digital monetary accounts of the second safety chip 12 and/or user with digital cash account
Account information is stored in the non-volatile memory medium of itself, to carry out safeguard protection；Second safety chip can be by oneself
The public private key pair of generation and address and believe from the received new user of the first safety chip with the account of digital cash account
Breath, is stored in the non-volatile memory medium of itself, to carry out safeguard protection.
Based on the structure of above-mentioned smart card, optionally, the first safety chip in cold and hot swap status, the present embodiment and
Second safety chip is in off-line state, the off-line state be interpreted as the first safety chip and the second safety chip cannot directly or
Indirectly with network connection, which includes but is not limited to local area network, internet etc., avoids illegal user illegal by network
Steal the data in the first safety chip and the second safety chip
It in one example, further include display screen circuit module on the smart card, as shown in Fig. 2, display screen circuit module
Display screen 15 including exposing to smart card, display screen circuit module connect with the first safety chip and the second safety chip respectively
It connects.The work of the first safety chip and information and/or smart card in the second safety chip is displayed on the display screen
State etc., it is to be understood that show that the content of screen display is not limited to the content of aforementioned list.Optionally, this is aobvious
The type of display screen includes non-touch-control display screen (such as quartzy display screen) and touching display screen.
According to content above-mentioned it is found that smart card is in cold and hot swap status, the first safety chip and the second safety chip
Between connection conducting, information can be mutually transmitted between the first safety chip and the second safety chip.For the first safety chip
And second exchange between safety chip be which data and data are which side which side is transmitted to from, can be by cold and hot
Working condition locating for smart card determines before swap status, for example, smart card is in cold storage shape before cold and hot swap status
State, then after being switched to cold and hot swap status, the second safety chip is by the user itself stored in the account with digital cash account
The account information of family information and/or redundant digital monetary accounts is sent to the first safety chip；Alternatively, in cold and hot swap status
Before, smart card is in hot storage state, then after being switched to cold and hot swap status, the first safety chip is stored itself new
User is being sent to the second safety chip with the account information of digital cash account.
Optionally, for exchanged between the first safety chip and the second safety chip be which data and data be from
Which side which side is transmitted to, and can also be determined by the operation under hot storage state, such as under hot storage state, user
When the exterior terminal connected by smart card inputs cold and hot swap status next time to the first safety chip, what is needed to be implemented is specific
(instruction can indicate when be switched to cold and hot storage state after, be the first safety chip to the second safety chip transmission number for instruction
Data are being obtained such as from the second safety chip with digital cash account information or the first safety chip according to new user is such as sent
The user that stores in the first safety chip is obtained with digital cash account information, optionally, which is disposable instruction),
When smart card is switched to cold and hot swap status, the first safety chip executes the specific instruction stored thereon, to the second safe core
Piece sends account information or obtains account information from the second safety chip.
Optionally, in order under cold and hot switching state, more easily control the first safety chip and the second safety chip
Information exchange, in one example, smart card further include keyboard input module, the keyboard input module and display screen circuit module
It is connected with power supply circuit, which has the key for exposing to smart card, so that user presses key control by triggering
Specific data interaction between first safety chip and the second safety chip.It is understood that in actual use, display screen
On can show user interface, user interface user by operation keyboard input module on key can choose
Different option on user interface, and control smart card execute the option etc. selected.Optionally, keyboard inputs mould
The function of the key of block include but is not limited to turn over, under turn over, a left side is turned over, the right side is turned over, confirmed etc..Optionally, keyboard in the present embodiment
The encapsulation of input module should make the thickness of smart card no more than the standard thickness of conventional financial card.Optionally, which inputs
Key in module can be push type key, thermal-induction type key, fingerprint induction type key etc..
If display screen circuit module is touching display screen circuit module, display screen is touching display screen, the touching display screen
Circuit module can receive the operation of user by touching display screen to control smart card.Optionally, working condition switching circuit 13
Function be desirably integrated into the touching display screen circuit and realize.
Under hot storage state, the first safety chip will realize the function of thermoelectron wallet or conventional financial card, it is necessary to energy
Enough and exterior terminal such as ATM machine etc. carries out the interaction of information, so in another example, as shown in Fig. 2, the smart card also wraps
Interface module 16 is included, the connection between the interface module 16 and the first safety chip 11 can only be connected under hot storage state,
Or the connection of the interface module 16 and the first safety chip 11 can be connected after the first safety chip 11 works on power, specifically
Conducting situation depending on interface module 16 it is specific effect depending on.By the interface module 16, when needed, the first safe core
The data interaction with exterior terminal may be implemented in piece 11.
Optionally, the first safety chip 11 in cold and hot swap status, smart card can be by interface module 16 and outer
Portion's terminal establishes connection, and the first safety chip 11 can be sent out the information in itself and the second safety chip 12 by interface module 16
Exterior terminal is given, the first safety chip 11 and the second safety chip can be arranged by the interface shown on exterior terminal in user
The specifying information of interaction between 12, exterior terminal generate control instruction according to the setting of user, which is sent to the
One safety chip 11, wherein the identification information for executing the safety chip of the control instruction is carried in the control instruction.Such as it controls
The user itself stored is being sent to the first peace with the account information of digital cash account A by system instruction the second safety chip of instruction
The user itself stored is being sent to the with the account information of digital cash account B by full chip, or the first safety chip of instruction
Two safety chips etc..
Optionally, interface module 16 be contact interface module (161 in Fig. 2, generally use ISO7816 agreement progress
Data interaction) or non-contact interface module (162 in Fig. 2, generally use ISO14443 agreement and carry out data interaction), it is non-
Contact interface module is specifically as follows contactless coupled antenna circuit module, but not without being limited thereto.According to interface module
Type is different, and smart card can establish connection by insertion exterior terminal or by non-contacting mode and exterior terminal, cold
Under heat exchange state, the exterior terminal connecting with smart card is needed in off-line state, avoids two safety chips especially the
Information in two safety chips is illegally accessed by network, if the user in the second safety chip is with digital cash account
Account information is illegally accessed etc..Optionally, in the present embodiment, under cold and hot swap status, the first safety chip is also used
Whether it is in off-line state in the exterior terminal of detection smart card connection, if the exterior terminal is in off-line state, prompts to use
The family exterior terminal is in connected state, and the information in smart card has the risk being stolen, so that user disconnects exterior terminal
Network connection.Optionally, the first safety chip can prompt user's exterior terminal to be in networking by the display module of itself
The exterior terminal that state or the first safety chip are connected by smart card is prompted in a manner of voice, display, vibration etc. with open air
Portion's terminal is in connected state.
In the present embodiment, interface module is desirably integrated on the first safety chip, can also be with the first safety chip independence
Setting, the present embodiment are not limited in this respect.
In order to further ensure that under cold and hot swap status, the safety of the data interaction of the first and second safety chip, cold and hot
Under swap status, the first and second safety chip carries out data interaction by encryption channel, and the mode that information encrypts in the present embodiment is not
Limit, for example, by using Advanced Encryption Standard (Advanced Encryption Standard, AES) cryptographic algorithm.In cold and hot exchange
Under state, the second safety chip is safe using being sent to first after the information cipher mode encryption of agreement to data to be sent
Chip exists, and the first safety chip is after the data for receiving the transmission of the second safety chip using corresponding information manner of decryption solution
It is close, the data after decryption are stored in the non-volatile memory medium of itself；Similar, the first safety chip will be to will send
Data using being sent to the second safety chip after the information cipher mode row encryption of agreement, the second safety chip is receiving the
It is decrypted after the data that one safety chip is sent using corresponding information manner of decryption, the data after decryption is stored in the non-of itself
In volatile storage medium.
In the present embodiment, under hot storage state, the second safety chip power-off, information therein is in offline storage shape
State can not be stolen by extraneous equipment, and the first safety chip can establish connection by interface module and external equipment.It is external whole
The type at end includes but is not limited to the terminal devices such as card reader, POS machine, ATM machine.
Under hot storage state, communicated to connect if the first safety chip is established by interface module and exterior terminal, first
Safety chip can realize conventional financial transaction and digital moneytary operations by the exterior terminal of networking.
Optionally, under hot storage state, the first safety chip 11 can be connect by smart card with exterior terminal, a side
The original function in face, smart card where the first safety chip has it (does not increase the second safety chip, work within a smart card
When state switching circuit and power supply circuit, the smart card function that has originally), such as smart card is originally bank card, then first
Safety chip has the institute of bank card functional, such as ATM machine storage/access money can be inserted in smart card, such as smart card is originally
Social security card, then the first safety chip has the function of social security card, and when user is when seeing a doctor, the first safety chip can assist outside
Terminal completion such as register, operation of pay the bill, such as smart card script be transportation card, then the first safety chip with transportation card function
Can, such as smart card is originally common reserve fund card, then the first safety chip has the function of common reserve fund card etc..
On the other hand, the first safety chip can have the function of thermoelectron wallet, such as pass through exterior terminal and digital goods
Coin server synchronization currency shifts (transaction) information；If the first safe core passes through outside in the case where exterior terminal networking
Terminal is connected into financial service end, and financial service end has ordinary financial account amount of money and exchanges, transfers (or purchase) as digital goods
The function of coin, then smart card is supported the exchange from the conventional sub- wallet of finance account thermoelectric, is transferred.In order to further ensure information
Safety, avoids the account information of digital cash account by unauthorized theft, optionally, the first safety chip is also used in digital goods
After coin transaction, at least the new user for being sent to the second safety chip is destroyed with the account information of digital cash account.
Optionally, power supply circuit includes hull cell in the present embodiment, and the encapsulation of hull cell should make the thickness of smart card
Degree is no more than the standard thickness of conventional financial card.
Hull cell is for powering to the second safety chip 12 in cold storage state, in cold and hot swap status to the first safety
Chip 11 and the power supply of the second safety chip 12.In hot storage state, hull cell is disconnected for being electrically connected with the first safety chip 11
It opens, the first safety chip 11 is connected with the connection of interface circuit 16, and interface circuit 16 is used in the first safety chip 11 by connecing
In the case that mouth circuit and exterior terminal establish connection, the electrical transfer of exterior terminal is given to the first safety chip.
Further, in hot storage state, if smart card is inserted into exterior terminal, smart card by contact interface module with
Exterior terminal establishes connection, then the first safety chip receives the power supply of exterior terminal by interface circuit；In hot storage state, if
Smart card is in the magnetic field of exterior terminal, and smart card is established by contactless coupled antenna circuit module and exterior terminal to be connected
It connects, then the first safety chip receives the power supply of exterior terminal by contactless coupled antenna circuit module.
Optionally, in the present embodiment, the working condition switching circuit 13 in Fig. 1 is key switching circuit, key switching
Circuit includes the key for exposing to smart card, so that user switches the working condition of smart card by way of triggering key.
Optionally, the function of the key switching circuit can be realized by above-mentioned touching display screen circuit module, key
Function realized by the touching display screen in touching display screen circuit module, touching display screen circuit module and the first safety chip and
Second safety chip and power supply module connection.Touching display screen is used to receive the touch control operation of user, and user can be by touching
Operation at least switching of the realization to three kinds of functional status of smart card on display screen is controlled, processing submodule can be aobvious by touch-control
Display screen receives the operation of user, and the working condition for generating corresponding switching command control smart card depending on the user's operation is cut
Change etc..
Optionally, the key switching circuit of the present embodiment can be various types of switching circuits, such as plectrum switch electricity
Road, film switch circuit etc., the present embodiment does not limit this.Optionally, if key switching circuit is plectrum switching circuit
(131 in Fig. 3), then key is the plectrum (1311 in such as Fig. 3, which exposes to smart card) in plectrum switching circuit,
If key switching circuit is film switch circuit (132 in Fig. 4), key is touch modules (such as Fig. 4 in film switch circuit
In 1321,1322 and 1323, three expose to smart card), touch modules expose to smart card, and film switch circuit is by obtaining
Family is taken to the touch situation of touch modules, the working condition of the smart card of user's selection is determined, to carry out the work of smart card
The switching of state.
Referring to Fig. 3, three gears are can be set in the plectrum switch 131 of the present embodiment, each gear intelligent card corresponding
One of three kinds of working conditions, certainly, different gears correspond to different working conditions；Plectrum on plectrum switch is in user
Manipulation under rest on which gear, then the working condition of smart card is switched under the corresponding working condition of the gear.
Optionally, when smart card is using plectrum switching circuit, after electric on smart cards or reset, the plectrum on smart card switchs position
In which gear, the state of smart card is just the corresponding state of the gear.
Referring to fig. 4, three touch modules can be set (as shown in figure 4,1321,1322 and in the thin film switch of the present embodiment
1323 be three touch modules), one of three kinds of working conditions of each touch modules intelligent card corresponding are certainly, different
Touch modules correspond to different working conditions these three touch modules and expose to smart card, touch modules can be push type touching
Touch module, thermal-induction type touch module, fingerprint induction type touch modules etc..The present embodiment is not limited in this respect.Optionally, intelligence
When can block using film switch circuit, after electric on smart cards or reset, smart card is defaulted as hot storage state.
Optionally, the plectrum switching circuit of the present embodiment and the way of realization of film switch circuit include but is not limited to: machine
Tool formula multipath control switch circuit and transistor type multipath control switch circuit.
Optionally, the encapsulation of key switching circuit should not make smart card be above standard thickness in the present embodiment.
The utility model embodiment proposes a kind of smart card, and there are two safety chips for the fixture, this is stuck in working condition and cuts
Changing tool under the control of circuit, there are three types of working conditions；In hot storage state, the power-off of the first safety chip, the second safety chip is logical
Electricity, the second safety chip can provide the function of cold stored value card；In cold and hot swap status, the first and second safety chip is powered and all
Data interaction can be carried out between off-line state, the first and second safety chip；In hot storage state, the second safety chip is powered off,
First safety chip has the function of conventional financial card and thermoelectron wallet, as a result, the smart card have hot and cold stored value card with
And the function of conventional financial card, greatly it is beneficial to traditional financial application of IC cards expanding and extending to digital cash field,
When second safety chip is powered, smart card is in off-line state, it is ensured that the safety of account in the second safety chip, and this implementation
The hot and cold storage state of smart card is electrically physically isolated based on power supply circuit in example, and safety is high.
The above are to a kind of description of smart card provided by the utility model, for those skilled in the art, foundation
The thought of the utility model embodiment, there will be changes in the specific implementation manner and application range, to sum up, this specification
Content should not be construed as a limitation of the present invention.
Claims (8)
1. a kind of smart card characterized by comprising the first safety chip, the second safety chip, working condition switching circuit and
Power supply circuit；
The power supply circuit is used to power for the smart card；
The working condition switching circuit is electric with first safety chip, second safety chip and the power supply respectively
Road connection, the working condition switching circuit are used to switch the working condition of the smart card, wherein the smart card exists such as
Lower three kinds of working conditions: cold storage state, cold and hot swap status and hot storage state；
Wherein, under the cold storage state, the first safety chip power-off, and second safety chip is powered, it is described
Second safety chip is based on cold stored value card technology storage user in the account information with digital cash account；
Under the cold and hot swap status, first safety chip and second safety chip are powered, second safety
Chip is connected with the connection of first safety chip；
Under the hot storage state, first safety chip is powered and second safety chip powers off, first peace
Full chip has the function of conventional financial card and the function of thermoelectron wallet.
2. smart card as described in claim 1, which is characterized in that the smart card further includes interface circuit, the power supply electricity
Road includes hull cell；
The hull cell is used to power to second safety chip under the cold storage state, in the cold and hot exchange shape
It powers under state to first safety chip and second safety chip；
Under the hot storage state, the hull cell is disconnected with first safety chip for being electrically connected, and described first
Safety chip is connected with the connection of the interface circuit, and the interface circuit is used to connect in first safety chip by described
In the case that mouth circuit and exterior terminal establish connection, the electrical transfer of the exterior terminal is given to first safety chip.
3. smart card as described in claim 1, which is characterized in that the smart card further includes display screen circuit module, described
Display screen circuit module includes the display screen for exposing to the smart card, and the display screen circuit module is pacified with described first respectively
Full chip is connected with second safety chip.
4. smart card as claimed in claim 3, which is characterized in that the smart card further includes keyboard input module, the key
Disk input module is connect with the display screen circuit module and the power supply circuit, and the keyboard input module includes exposing to institute
The key of smart card is stated, so that user switches first safety chip and second peace by way of triggering the key
The data interaction of full chip.
5. smart card according to any one of claims 1-4, which is characterized in that the working condition switching circuit is cut for key
Circuit is changed, the key switching circuit includes the key for exposing to the smart card, so that user is by triggering the key
Mode switches the working condition of the smart card.
6. smart card as claimed in claim 5, which is characterized in that the key switching circuit is film switch circuit, described
Key is the touch modules in the film switch circuit.
7. smart card as claimed in claim 5, which is characterized in that the key switching circuit is plectrum switching circuit, described
Key is the plectrum in the key switching circuit.
8. smart card according to any one of claims 1-4, which is characterized in that first safety chip and second peace
Full chip is financial level safety chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821578761.5U CN209015189U (en) | 2018-09-27 | 2018-09-27 | A kind of smart card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821578761.5U CN209015189U (en) | 2018-09-27 | 2018-09-27 | A kind of smart card |
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| Publication Number | Publication Date |
|---|---|
| CN209015189U true CN209015189U (en) | 2019-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821578761.5U Active CN209015189U (en) | 2018-09-27 | 2018-09-27 | A kind of smart card |
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| Country | Link |
|---|---|
| CN (1) | CN209015189U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020063435A1 (en) * | 2018-09-27 | 2020-04-02 | 深圳技术大学 | Smart card |
-
2018
- 2018-09-27 CN CN201821578761.5U patent/CN209015189U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020063435A1 (en) * | 2018-09-27 | 2020-04-02 | 深圳技术大学 | Smart card |
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