CN102096835A - Method for switching working modes of dual interface smart card - Google Patents
Method for switching working modes of dual interface smart card Download PDFInfo
- Publication number
- CN102096835A CN102096835A CN2009102002443A CN200910200244A CN102096835A CN 102096835 A CN102096835 A CN 102096835A CN 2009102002443 A CN2009102002443 A CN 2009102002443A CN 200910200244 A CN200910200244 A CN 200910200244A CN 102096835 A CN102096835 A CN 102096835A
- Authority
- CN
- China
- Prior art keywords
- mode
- contact
- double
- smart card
- reset
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000009977 dual effect Effects 0.000 title abstract description 10
- 230000007704 transition Effects 0.000 abstract description 3
- 238000004891 communication Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Images
Landscapes
- Power Sources (AREA)
Abstract
The invention provides a method for switching working modes of a dual interface smart card. In the method, the dual interface card is mutually switched among three application modes, namely a contact type mode, a non-contact type mode and a dual interface mode which are unique to the dual interface card, under working conditions in different modes. A power-on reset mode and a clock switching mode of a system are set according to a working mode in which the initial default is not set, so that the method for switching from the contact type working mode to the dual interface working mode and then from the dual interface working mode to the non-contact type working mode is realized, and a switching process from the initial non-contact type working mode to the dual interface working mode and then the contact type working mode is realized. By the method, seamless transition of the dual interface smart card in various working modes according to an actual application environment requirement can be realized, and the normal work in any mode can be guaranteed.
Description
Technical field
The present invention relates to a kind of double-interface smart card technology, relate in particular to a kind of double-interface smart card working mode switching method.
Background technology
Nowadays contact intellective IC card (hereinafter to be referred as " contact card ") has obtained general application, for example SIM card in daily life.Popularization and application along with contact card, many problems in having occurred using, frequent plug on read-write equipment can cause wearing and tearing can cause the card loose contact as contact card, thereby cause data transmission fault, and the serviceable life of card and read-write equipment has also been shortened in the wearing and tearing between contact card and the read-write equipment greatly.In addition, the communication speed of contact card is lower, adds the action of plug-in card and incurs loss through delay, and causes the Card Reader transaction to need the long period.
Also have the card of another form to use contactless smart IC-card (hereinafter to be referred as " contactless card ").The advantage of contactless card is conspicuous, it carries out communication by radiowave and read-write equipment, there is not exposed contact, with do not have between the read-write equipment yet machinery contact, reliability and serviceable life are higher, and its communication speed also is higher than contact card, can operate more convenient, quick from any direction and read-write equipment communication in the certain distance scope.Therefore contactlessly be stuck in a lot of occasions and be substituted contact card, increasing in the share that smart card market is shared.Simultaneously also there are some defectives in contactless card: during the card curved transitions, lost efficacy because of the fracture of card Inside coil solder joint easily in the use.Be subjected to environmental interference easily and fail in the contactless communication of some occasions, encryption method is simpler, and security is lower than contact card etc.
Based on the application of above-mentioned two kinds of smart cards and the problem that can occur, current field of intelligent cards begins to adopt double-interface smart card (Dual Interface Smart Card) as the new mode of using.Employing provides the communication modes of contact and non-contact interface to satisfy different application demands on a sheet smart card sheet simultaneously.The contact card that double-interface smart card owing to concentrated can independently use and the advantage of non-contact card, more perfect function is a kind of multi-function intelligent card.
Double-interface card is from appearance, and is identical with contact card.The surface is with the contact hard contact that meets ISO/IEC 7816 standards, and the card inner structure is then similar to non-contact card, and the module of aerial coil and chip is arranged, and meets ISO/IEC 14443 standards.The shared central processing unit CPU of double-interface card, share the card internal storage, have only a Chip Operating System COS (Chip Operating System) (hereinafter to be referred as " COS "), the contact interface can be visited identical storage area and carry out identical operations with contactless interface.
Also there is specific problem in actual use in double-interface card, especially need be under the situation of having only a COS at the real-time switching working mode of different working environments, and need switch clock and produce reset signal at different working modes.For example under contactless mode of operation, relatively more responsive to power consumption, when the contact power supply adds, may cause the chip power shake and the system works that makes occurs unusual.Under the contact mode of operation, insensitive to power consumption, and also the operation clock is slow, so radio field intensity adds the power supply shake that causes system's operation is not almost had influence, switches but need carry out clock.
Smart card with two kinds of interfaces in contact mode of operation, contactless mode of operation and two interfaces mode of operation, exist separately condition of work and the requirement of running environment, the problem that three kinds of mode of operations are switched can appear in application, at the problems referred to above, need to propose a kind of safety under the multiple mode of operation of double-interface smart card, reliable method of switching of solving, to guarantee the normal use of double-interface card under various modes.
Summary of the invention
The implementation method that the object of the invention provides a kind of double-interface smart card to switch under contact, contactless and two interfaces mode of operation, can make double-interface smart card under multiple mode of operation, realize seamless transitions, guarantee the operate as normal of any pattern according to the actual application environment demand.
The present invention relates to a kind of double-interface smart card Working mode switching method, comprise following content:
(1) do not set the mode of operation of initial default during the double-interface smart card system power-on reset, electrification reset breaks away from the back obtains the double-interface card system according to the system signal that receives initial operation mode;
(2) when being in contactless mode of operation behind the double-interface smart card system power-on reset, if double-interface smart card detects the contact reset signal of input, then system reset enter two interfaces mode of operation, otherwise system is in always in the contactless mode of operation;
(2) when being in the contact mode of operation behind the double-interface smart card system power-on reset, if receive the signal that enters radio field intensity, system does not need to reset, and promptly enter two interfaces mode of operation, otherwise system is always in contactless mode of operation;
(3) when the double-interface smart card system is in two interfaces mode of operation, radio field intensity exists always if contact connects blackout, and then system reset enters contactless mode of operation;
(4) when the double-interface smart card system is in two interfaces mode of operation, if radio field intensity blackout but contact interface exist always, system does not reset, and enters the contact mode of operation.
Double-interface smart card is in contactless mode of operation following time, and is relatively more responsive to power consumption.When system detects the power supply signal of contact, make system abnormal problem occur for avoiding the power supply shake, then need produce reset signal.
Double-interface smart card is in contact mode of operation following time, and system's operation clock is slow, when detecting when entering radio field intensity, for avoiding occurring operation irregularity, needs the contact clock module is switched to contactless clock module.
Description of drawings
Fig. 1 double-interface smart card mode of operation switching state figure
Specific embodiments
1 pair of a kind of double-interface smart card Working mode switching method proposed by the invention is described in detail in conjunction with the accompanying drawings:
The double-interface smart card system does not set the mode of operation of acquiescence when initial electrification reset, after electrification reset breaks away from, obtain the mode of operation of double-interface card system according to the mode of operation indicator signal that receives.Fashionable when only there being the contact power supply to add, the contact low level at contact interface resets effectively, and system uses the contact clock, and system enters the contact mode of operation, shown in T3, T6 among the figure.Under current contact mode of operation, add as non-contact electric power, system does not reset, and clock is optional, then enters two interfaces mode of operation, shown in T2 in the way.Under current pair of interface mode of operation, when detecting the contact power supply, system disappears, and contactless clock is then selected in system reset, enters contactless mode of operation, shown in T3 among the figure.When non-contact electric power disappeared, system reset was shown in T9 among the figure.
When the double-interface smart card system after initial electrification reset breaks away from, only have non-contact electric power to add, then system uses contactless clock, enters contactless mode of operation, shown in T4.Under current contactless mode of operation, system has detected the contact power supply and has added, and the electric shock low level at contact interface resets effectively, and clock is optional, then enters the double-interface card mode of operation, shown in T8, T7 among the figure.Under current double-interface card mode of operation, when the non-contact electric power disappearance, system can not reset, and selects to use the contact clock, enters the contact mode of operation, shown in T5 among the figure.Under the work at present pattern, when the contact power supply disappears system reset.
Claims (5)
1. double-interface smart card Working mode switching method is characterized in that comprising following content:
(1) do not set the mode of operation of initial default during the double-interface smart card system power-on reset, electrification reset breaks away from the back obtains the double-interface card system according to the system signal that receives initial operation mode;
(2) when being in contactless mode of operation behind the double-interface smart card system power-on reset, if double-interface smart card detects the contact reset signal of input, then system reset enter two interfaces mode of operation, otherwise system is in contactless mode of operation always;
(2) when being in the contact mode of operation behind the double-interface smart card system power-on reset, if receive the signal that enters radio field intensity, system does not need to reset, and promptly enter two interfaces mode of operation, otherwise system is always in contactless mode of operation;
(3) when the double-interface smart card system is in two interfaces mode of operation, radio field intensity exists always if contact connects blackout, and then system reset enters contactless mode of operation;
(4) when the double-interface smart card system is in two interfaces mode of operation, if radio field intensity blackout but contact interface exist always, system does not reset, and enters the contact mode of operation.
2. a kind of double-interface smart card Working mode switching method as claimed in claim 1 is characterized in that: under contactless mode of operation, and system reset when contact reset signal occurring, clock signal is selected contact clock or contactless clock.
3. a kind of double-interface smart card Working mode switching method as claimed in claim 1, it is characterized in that: under the contact mode of operation, system detects that system does not reset when entering radio field intensity, and clock signal is selected with contact clock or contactless clock.
4. a kind of double-interface smart card Working mode switching method as claimed in claim 1, it is characterized in that: under the mode of operation of two interfaces, when the contact interface disappears and radio field intensity when existing, as using the contact clock at that time, then clock signal need switch to contactless clock.
5. a kind of double-interface smart card Working mode switching method as claimed in claim 1, it is characterized in that: under the mode of operation of two interfaces, when radio field intensity disappears and contact interface when existing, as using contactless clock at that time, then clock signal need switch to the contact clock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102002443A CN102096835A (en) | 2009-12-10 | 2009-12-10 | Method for switching working modes of dual interface smart card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102002443A CN102096835A (en) | 2009-12-10 | 2009-12-10 | Method for switching working modes of dual interface smart card |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102096835A true CN102096835A (en) | 2011-06-15 |
Family
ID=44129923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102002443A Pending CN102096835A (en) | 2009-12-10 | 2009-12-10 | Method for switching working modes of dual interface smart card |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102096835A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104536512A (en) * | 2014-12-24 | 2015-04-22 | 大唐微电子技术有限公司 | Clock management method and device based on field intensity self-adaptation |
| CN106022442A (en) * | 2016-05-11 | 2016-10-12 | 新智数字科技有限公司 | Integrated circuit card |
| CN110569950A (en) * | 2019-09-09 | 2019-12-13 | 东信和平科技股份有限公司 | Test method and system of double-interface IC card and double-interface reader-writer |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1460965A (en) * | 2002-05-23 | 2003-12-10 | 夏普株式会社 | Combined IC card |
| CN1512435A (en) * | 2002-12-26 | 2004-07-14 | 上海华虹集成电路有限责任公司 | Conversion method for double interface IC card contact type/non-contact type working mode |
-
2009
- 2009-12-10 CN CN2009102002443A patent/CN102096835A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1460965A (en) * | 2002-05-23 | 2003-12-10 | 夏普株式会社 | Combined IC card |
| CN1512435A (en) * | 2002-12-26 | 2004-07-14 | 上海华虹集成电路有限责任公司 | Conversion method for double interface IC card contact type/non-contact type working mode |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104536512A (en) * | 2014-12-24 | 2015-04-22 | 大唐微电子技术有限公司 | Clock management method and device based on field intensity self-adaptation |
| CN104536512B (en) * | 2014-12-24 | 2017-12-26 | 大唐微电子技术有限公司 | A kind of clock management method and device adaptive based on field strength |
| CN106022442A (en) * | 2016-05-11 | 2016-10-12 | 新智数字科技有限公司 | Integrated circuit card |
| CN110569950A (en) * | 2019-09-09 | 2019-12-13 | 东信和平科技股份有限公司 | Test method and system of double-interface IC card and double-interface reader-writer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101714221B (en) | Electronic device and management of competing contactless communication of such a device and a host equipment | |
| EP2843768B1 (en) | Sim card connector and mobile terminal | |
| MX2009004783A (en) | Radio frequency identification of component connections. | |
| CN101908157B (en) | NFC-SIM (Near Field Communication-Subscriber Identity Module) chip | |
| CN101236453A (en) | Connection structure and communicating method between NFC control chip and SIM card chip | |
| US20070095924A1 (en) | Fully simultaneous information on variation in status for an object with a dual interface | |
| KR20120011974A (en) | Smart Card Supporting Multiple Interfaces and Its Interface Method | |
| CN102096835A (en) | Method for switching working modes of dual interface smart card | |
| WO2011002178A3 (en) | Rfid card with a built-in switch, and control system and control method | |
| CN103177272A (en) | Radio frequency identification (RFID) three-dimensional access door | |
| CN202759437U (en) | Interface circuit for dual-interface smart card | |
| WO2016029665A1 (en) | Active 13.56mhz rfid device | |
| CN103745254A (en) | Mobile payment intelligent card | |
| US20080048042A1 (en) | Immunity to Variations in Limited Resources, Provided to an Object with a Dual Interface | |
| CN102592105A (en) | Low power consumption design method based on close-range wireless communication | |
| CN201576298U (en) | Automatic detecting and switching device for dual interface smartcard clock sources | |
| CN102054151B (en) | Method for quickly judging operating mode of dual interface smartcard | |
| CN101350058B (en) | Method for self-adapting double-interface IC card protocol mode | |
| CN201340604Y (en) | Composite contact card reader | |
| CN202102469U (en) | Double-frequency double-interface CPU (central processing unit) intelligent card | |
| CN102467647B (en) | Judging method and circuit for work mode of dual-interface smart card | |
| CN103714376A (en) | Mobile payment intelligent card | |
| CN201111122Y (en) | Connection device between double data interface subscriber identification card and non-contact front-end chip | |
| CN103516398B (en) | A kind of frequency communication method, switching device and RF system | |
| CN102255638B (en) | Interface circuit meeting single wire protocol (SWP) on contactless front (CLF) chip of near field communication (NFC) controller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110615 |