CN105654003B - A kind of IC card detection method and device in place - Google Patents
A kind of IC card detection method and device in place Download PDFInfo
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- CN105654003B CN105654003B CN201511016035.5A CN201511016035A CN105654003B CN 105654003 B CN105654003 B CN 105654003B CN 201511016035 A CN201511016035 A CN 201511016035A CN 105654003 B CN105654003 B CN 105654003B
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- card
- module
- instruction
- interactive action
- position detecting
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/0013—Methods or arrangements for sensing record carriers, e.g. for reading patterns by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers
- G06K7/0056—Methods or arrangements for sensing record carriers, e.g. for reading patterns by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers housing of the card connector
- G06K7/0069—Methods or arrangements for sensing record carriers, e.g. for reading patterns by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers housing of the card connector including means for detecting correct insertion of the card, e.g. end detection switches notifying that the card has been inserted completely and correctly
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/0013—Methods or arrangements for sensing record carriers, e.g. for reading patterns by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers
- G06K7/0021—Methods or arrangements for sensing record carriers, e.g. for reading patterns by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers for reading/sensing record carriers having surface contacts
- G06K7/0026—Methods or arrangements for sensing record carriers, e.g. for reading patterns by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers for reading/sensing record carriers having surface contacts the galvanic contacts of the connector adapted for landing on the contacts of the card upon card insertion
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- Engineering & Computer Science (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
- Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
Abstract
The present invention discloses a kind of IC card, and detection method and device, wherein method include the following steps in place：Receive the request for reading IC card；It sends detection instruction and arrives IC card；Wait for and receive the response instruction of IC card reply；Judge whether response instruction is correct；If correct, IC card interactive action is carried out；Otherwise without IC card interactive action.This programme is not required to the external interrupt resource of MCU, reduces the resource requirement of MCU, is conducive to the IC card reader exploitation that function is simple, inexpensive.
Description
Technical field
The present invention relates to IC card detection technique field more particularly to a kind of bank IC card detection method and device in place.
Background technology
The conventional cartridge structure schematic diagram that snaps into position detecting mechanism of the financial payment terminal IC card seat with mechanical device, such as
Shown in attached drawing 1.After card is inserted into certain depth, card touch on deck can shape changing metal shrapnel K2 mechanical deformations, and it is another
Fixed sheet metal K1 contacts, change initial electric state, the electric state after change and metal so as to cause metal clips K2
Piece K1 is identical.This electrical change is sent to MCU, triggering MCU interruption response so that MCU thinks IC card in place.It is i.e. existing
IC card seat need it is independent machinery arrive position detecting mechanism.
It is as shown in Fig. 2 that conventional financial payment terminal IC card detects detailed process in place：Step S201：IC card reader
Into Card Reader flow, IC card is waited for be inserted into.Step S202：Electrically certain resistance value pulls up deck metal clips K2, is high level
State；Shrapnel K1 ground connection, is low level state.Step S203：IC card causes shrapnel K2 deformation after being inserted into position, is contacted with K1, K2
Become low level state, low level state is transmitted to the I/O port of MCU, and triggers MCU interruption.Step S204：MCU is on card
Electricity, and proceed by IC card interaction.
Conventional financial payment terminal IC card detects that there is cartridge structures in place complicated, pcb board area occupies it is big and
The problem of needing to occupy MCU independent I/O ports.
The use of IC card seat is all the detection that snaps into for judging hardware in financial payment industry, there is no corresponding card on software
To bit instruction, for MCU by the interrupt signal of hardware circuit, the operation snapped into easy tos produce malfunction.
Invention content
For this reason, it may be necessary to provide a kind of IC card detection method and device in place, solves IC card and detect that there is deck knots in place
Structure is complicated, pcb board area occupy it is big and the problem of need to occupy MCU independent I/O ports.
To achieve the above object, a kind of IC card is inventor provided to position detecting method, is included the following steps：
Receive the request for reading IC card；
It sends detection instruction and arrives IC card；
Wait for and receive the response instruction of IC card reply；
Judge whether response instruction is correct；
If correct, IC card interactive action is carried out；
Otherwise without IC card interactive action.
Further, further include step before " sending detection instruction " step：
It is powered on to IC card；
Then " carrying out IC card interactive action " includes：IC card is kept to have electricity and carry out IC card interactive action；
Include " without IC card interactive action " then：It is powered off to IC card and without IC card interactive operation.
Further, further include step after " without IC card interactive action " step：
One default stand-by period of interval simultaneously reenters " send detection instruction and arrive IC card " step.
Further, include the following steps in step " the response instruction for waiting for and receiving IC card reply "：
Start timing；
Judge whether time-out, if it times out, response instruction is incorrect；
If not having time-out, the response instruction of IC card reply is continued waiting for.
Further, step " sending detection instruction to IC card " includes：
APDU instructions are sent to IC card.
Further, the IC card is bank IC card.
And the present invention also provides a kind of IC card to level detecting apparatus, including following module：
Request receiving module：For receiving the request for reading IC card；
Instruction sending module：IC card is arrived for sending detection instruction；
Command reception module：Response instruction for waiting for and receiving IC card reply；
Instruct judgment module：It is no if correctly, enabling interactive action module for judging whether response instruction is correct
Then not enabled action interactive module；
Interactive action module：For carrying out IC card interactive action.
Further, further include that IC card powers on module：For being powered on to IC card；
Then instruct judgment module：For judge response instruction it is whether correct, if correctly, enable interactive action module and
IC card powers on module, and otherwise not enabled action interactive module and IC card power on module.
Further, further include circulate operation module：For being spaced a default stand-by period and enabling instruction hair again
Send module.
Further, further include overtime judgment module：Overtime judgment module when command reception module is enabled for opening
Beginning timing, and for judging whether time-out, if it times out, response instruction is incorrect, if not having time-out, continue enabled instruction
Receiving module.
Further, instruction sending module is additionally operable to send APDU instructions to IC card.
Further, the IC card is bank IC card.
Further, further include IC card seat, for IC card deck for being connect with IC card, IC card seat is without detection machine in place
The deck of structure.
It is different from the prior art, above-mentioned technical proposal has the following advantages that：
1, when in use, the deck without physical detection mechanism can be used, removes the object that screens detects in place in this way
Testing agency is managed, the injection molding material and metal clips of deck can be reduced, it is final to reduce device production cost.
2, this programme is not required to the external interrupt resource of MCU, reduces the resource requirement of MCU, and it is simple, inexpensive to be conducive to function
IC card reader exploitation.
3, after removal snaps into the IC card seat of position detecting mechanism, deck bulk area is reduced, and occupies smaller printing plate suqare,
It is put for other devices, the printing plate suqare of IC card reader can be reduced to a certain extent, reduce cost.
Description of the drawings
Fig. 1 is the structural schematic diagram of existing IC card deck described in background technology；
Fig. 2 is the method flow diagram of existing IC card detection described in background technology；
Fig. 3 is the method flow diagram of one embodiment of the invention；
Fig. 4 is the structural schematic diagram of the easy IC card deck of the present invention；
Fig. 5 is specific embodiment of the invention the method flow chart；
Fig. 6 is the structural schematic diagram of the device of the invention embodiment.
Reference sign：
600, IC card is to level detecting apparatus；
601, request receiving module；
602, instruction sending module；
603, command reception module；
604, judgment module is instructed；
605, interactive action module；
606, IC card powers on module；
607, circulate operation module；
608, overtime judgment module.
Specific implementation mode
For the technology contents of technical solution, construction feature, the objects and the effects are described in detail, below in conjunction with specific reality
It applies example and attached drawing is coordinated to be explained in detail.
Herein presented noun is illustrated first：
IC card (Integrated Circuit Card, integrated circuit card), also referred to as smart card (Smart card), wisdom
Card (Intelligent card), microcircuit card (Microcircuit card) or chip card etc..It is by a microelectronics
Chip insertion meets in the card base of 7816 standards of ISO, makes card form.Communication modes between IC card and reader can be with
It is contact, can also be contactless.IC card is divided into Contact Type Ic Card, non-contact IC card and Shuan Jie according to communication interface
Face card (is provided simultaneously with contact and contactless communication interface).
IC card seat, in IC card reader, the electronic device for carrying IC card body, and be used for and IC card contact
And it is communicated.
APDU (Application Protocol data unit), is transmitted between smart card and smart card reader
Information unit.
Fig. 6 is please referred to Fig.1, the present embodiment provides a kind of IC card to position detecting method, method of the invention can be applied
In (such as in POS terminal), electronic equipment has the IC card deck for being connect with IC card, the IC that the present invention applies on electronic equipment
Card deck, which can not have, arrives position detecting mechanism.It can also be used on the electronic equipment with the IC card deck to position detecting mechanism
The method of the present invention, the pin to position detecting mechanism at this time can not be connect with the pin of processor, can save processing in this way
The I/O port of device.
In the present embodiment, this method can be used in particular on the processor of electronic equipment, as shown in figure 3, specifically including
Following steps：Step S301 receives the request for reading IC card.The request for reading IC card needs to carry out IC card in application program
It can be triggered when interaction, such as need to read IC card information or IC card information is written.It then enters step S303 and sends detection
Instruct IC card.Sense command is the order for obtaining IC card response, and IC card can reply response after receiving sense command
Instruction.In certain embodiments, sense command can be information read commands either APDU orders, under normal circumstances, IC card
It can be carried out normally responding after receiving these orders.Then enter step the response that S304 is waited for and received IC card reply
Instruction.If IC card has been properly inserted into socket, it is correct to respond instruction, and otherwise response instruction is wrong, when
So, in certain embodiments, whether illegal IC card is also correctly to respond, can be used for detecting IC card illegal.Then
Step S305 judges whether response instruction is correct.If correct, enter step S306 and carry out IC card interactive action；Otherwise it is
Step S307 is without IC card interactive action.Interactive action can be determined according to the specific needs of application program, if
Response instruction is correct, then it is assumed that IC card is in place, you can to interact operation.In this way, when using the method for the present invention, nothing
It need to use the method for interrupting detection that the detection in place of IC card can be thus achieved, be not required to the external interrupt money of MCU (processor) in this way
The resource requirement of MCU is reduced in source, is conducive to the IC card reader exploitation that function is simple, inexpensive.Existing IC card is inserted into simultaneously
When to deck, sometimes IC card and IC card deck poor contact, although existing IC card machinery can be detected to position detecting mechanism
The problem of being inserted into IC card and generate interruption to MCU, but MCU can not obtain effective information, MCU is caused to repeat to read.This hair
Bright software detecting method just will be considered that IC card in place, avoids MCU repetitions after only being contacted with deck in IC card well
The problem of reading is but read less than effective information.
And the method for the present invention due to that need not arrive position detecting mechanism, then IC card deck can be made as shown in figure 4, IC
Card deck is made of IC card contact and shell, and (includes contact chip K1, K2 and week without such as the position detecting mechanism that arrives in Fig. 1
Surrounding edge frame), the size of IC card deck can be reduced, deck cost and complexity are lowered.It is also possible to suitably reduce pcb board
Area, reduce production cost.
In certain embodiments, the problem of IC card causes IC card to damage, the present invention are inserted into after being charged in order to avoid IC card seat
In IC card seat be not charged under peacetime state.It then needs to send instructions to IC card in step S303, it should need to enter step
Rapid S302 is powered on to IC card.Specific power up can be to turn on the connection between IC card deck and power supply.Then in step
S306 includes：It keeps IC card to have electricity and carry out IC card interactive action, that is, does not turn off the power supply of IC card deck.And in step S307 packets
It includes：It is powered off to IC card and without IC card interactive operation.In this way when IC card does not have in place, this method can be powered off, simultaneously
It can show that IC card is not inserted into position on a display screen, user can repeat when display sees IC card not in place
The insert action of IC card then avoids when IC card is inserted into and charges deck instantaneous touch damage IC card card since deck is without electricity
The case where seat.
As being mentioned in above-described embodiment, user may repeat IC card in the case where IC card is not inserted into position
Insert action, for the ease of being detected again insertable into after in IC card, then after step S307 " without IC interactive actions " step
Further include step S308：One default stand-by period of interval simultaneously reenters " send detection instruction and arrive IC card " step.This is pre-
If the stand-by period can be set as needed, such as 0.5S or 1S, reading the IC card stage in this way, MCU separated in time is to IC
Card send detection instruction come judge IC card whether plug-in card in place.
It being waited for for a long time when in order to avoid being not inserted into card, " response of IC card reply is waited for and receiving in step S304
Instruction " further includes following steps：Start timing；Judge whether time-out, if it times out, response instruction is incorrect；If not super
When, then continue waiting for the response instruction of IC card reply.When this time-out time can be set to the response most slow slightly larger than IC card
Between, i.e., after overlong time, then it is assumed that response instruction is incorrect, that is, thinks that IC card without in place, then enters step S307, and otherwise one
Directly obtain the response of IC card.
The method of the present invention can be applied on the electronic equipment with Fig. 4 low cost IC card decks, specific as one
Embodiment, can be on Mobile phone card reader with this inexpensive deck.Since the product function of mobile phone card reader is simple
And product is higher to the control of cost, therefore use inexpensive deck.Mobile phone card reader passes through company as external functions of card reader
Catcher machine realizes user's operation.In use, mobile phone prompt client swipes the card, and mobile phone card reader waits for client to swipe the card,
The MCU of mobile phone card reader actively cycle through at certain intervals send APDU instructions judge IC card whether plug-in card in place, if MCU
Judge that plug-in card then carries out Card Reader in place.
The flow chart of attached drawing 5 further briefly explains testing process：Step S501：IC card reader enters Card Reader flow,
IC card is waited for be inserted into.Step S502：MCU is powered on to deck, and sends APDU instructions.Step S503 judges the response returned, if
There is card then to return to correct response；It is wrong if without card, by after a certain period of time, MCU is powered on to deck again, and sends APDU and refer to
It enables.Step S504：MCU receives correct response, and judgement is stuck in position, continues IC card interaction.Realize mobile phone card-brushing in this way
Inexpensive IC card detects in place on device.
In above-described embodiment, method of the invention can be applied in a plurality of types of IC card, in a preferred embodiment, can
To apply on bank card, i.e., IC card is bank card.The card number of bank and the distribution row title of bank card are had on bank card
Etc. information, the inside be stored with the bank account information of user.In the transaction flow of bank card, payment devices can with server into
The multiple interaction of row, if card does not begin to transaction flow in place, it is likely that generation is repeatedly invalid to be interacted and cause the time
On waste.The present invention is only just traded flow after bank snaps into, that is, judges after snapping into, into transaction flow,
Otherwise do not enter transaction flow, situation about interacting in vain can be avoided to occur significantly, reduce the stand-by period of client.
And the present invention also provides a kind of IC card to level detecting apparatus, it can be one that the device of the invention, which implements form,
A POS terminal, POS terminal include card reader unit, processing unit, display unit, input unit and communication unit etc., and processing is single
Member respectively with card reader unit, display unit, input unit and communication unit connect, comprising IC card deck in card reader unit,
It can include specific module mentioned below in processing unit.As shown in fig. 6, including following module：Request receiving module
601：For receiving the request for reading IC card；Instruction sending module 602：IC card is arrived for sending detection instruction；Command reception
Module 603：Response instruction for waiting for and receiving IC card reply；Instruct judgment module 604：For whether judging response instruction
Correctly, otherwise not enabled to act interactive module if correctly, enabling interactive action module；Interactive action module 605：For
Carry out IC card interactive action.Whether in place the device of the invention detects IC card by the detection of order, without in MCU
It is disconnected, greatly reduce the occupancy of MCU interruption resource, while easy IC card deck can be used, reduces cost.
Further include that IC card powers on module 606 to save electric energy：For being powered on to IC card；Then instruct judgment module：For
Judge whether response instruction is correct, if correctly, enabled interactive action module and IC card power on module, otherwise not enabled action
Interactive module and IC card power on module.
In certain embodiments, in order to realize the detection after IC card is repeatedly inserted into, the present apparatus further includes circulate operation module
607：For being spaced a default stand-by period and enabling instruction sending module again.
The case where falling into a long wait after being not inserted into order to avoid card, the present apparatus further include overtime judgment module 608：Time-out is sentenced
Disconnected module refers to for starting timing when command reception module is enabled, and for judging whether time-out if it times out, responding
It enables incorrect, if not having time-out, continues enabled command reception module.
As a kind of optional detection instruction, detection instruction can be APDU instructions, then instruction sending module is additionally operable to send out
Send APDU instructions to IC card.In a preferred embodiment, IC card can be bank card.
The IC card deck of the present apparatus can use the IC card deck such as Fig. 4, i.e. IC card seat is without to position detecting mechanism
Deck.Deck cost can be reduced, the smaller application scenario of pcb board area is more suitable for.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that process, method, article or terminal device including a series of elements include not only those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or end
The intrinsic element of end equipment.In the absence of more restrictions, being limited by sentence " including ... " or " including ... "
Element, it is not excluded that there is also other elements in process, method, article or the terminal device including the element.This
Outside, herein, " being more than ", " being less than ", " being more than " etc. are interpreted as not including this number；" more than ", " following ", " within " etc. understandings
It includes this number to be.
It should be understood by those skilled in the art that, the various embodiments described above can be provided as method, apparatus or computer program production
Product.Complete hardware embodiment, complete software embodiment or embodiment combining software and hardware aspects can be used in these embodiments
Form.All or part of step in the method that the various embodiments described above are related to can be instructed by program relevant hardware come
It completes, the program can be stored in the storage medium that computer equipment can be read, for executing the various embodiments described above side
All or part of step described in method.The computer equipment, including but not limited to：Personal computer, server, general-purpose computations
It is machine, special purpose computer, the network equipment, embedded device, programmable device, intelligent mobile terminal, smart home device, wearable
Smart machine, vehicle intelligent equipment etc.；The storage medium, including but not limited to：RAM, ROM, magnetic disc, tape, CD, sudden strain of a muscle
It deposits, USB flash disk, mobile hard disk, storage card, memory stick, webserver storage, network cloud storage etc..
The various embodiments described above are with reference to method, equipment (system) and the computer program product according to embodiment
Flowchart and/or the block diagram describes.It should be understood that can be realized by computer program instructions every in flowchart and/or the block diagram
The combination of flow and/or box in one flow and/or box and flowchart and/or the block diagram.These computers can be provided
Program instruction is to the processor of computer equipment to generate a machine so that the finger executed by the processor of computer equipment
It enables and generates to specify in one flow of flow chart or multiple flows and/or one box of block diagram or multiple boxes
The device of function.
These computer program instructions, which may also be stored in, can guide computer equipment computer operate in a specific manner to set
In standby readable memory so that the instruction generation being stored in the computer equipment readable memory includes the manufacture of command device
Product, command device realization refer in one flow of flow chart or multiple flows and/or one box of block diagram or multiple boxes
Fixed function.
These computer program instructions can be also loaded on computer equipment so that be executed on a computing device a series of
To generate computer implemented processing, the instruction to execute on a computing device is provided for realizing in flow operating procedure
The step of function of being specified in one flow of figure or multiple flows and/or one box of block diagram or multiple boxes.
Although the various embodiments described above are described, once a person skilled in the art knows basic wounds
The property made concept, then additional changes and modifications can be made to these embodiments, so example the above is only the implementation of the present invention,
It is not intended to limit the scope of patent protection of the present invention, it is every to utilize equivalent structure made by description of the invention and accompanying drawing content
Or equivalent process transformation, it is applied directly or indirectly in other relevant technical fields, the patent for being similarly included in the present invention
Within protection domain.
Claims (12)
1. a kind of IC card is to position detecting method, which is characterized in that this method is applied on electronic equipment, and electronic equipment, which has, to be used for
The IC card deck being connect with IC card, IC card seat are to include the following steps without the deck to position detecting mechanism：
Receive the request for reading IC card；
It sends detection instruction and arrives IC card；
Wait for and receive the response instruction of IC card reply；
Judge whether response instruction is correct；
If correct, IC card interactive action is carried out；
Otherwise without IC card interactive action.
2. a kind of IC card according to claim 1 is to position detecting method, which is characterized in that in " sending detection instruction " step
Before further include step：
It is powered on to IC card；
Then " carrying out IC card interactive action " includes：IC card is kept to have electricity and carry out IC card interactive action；
Include " without IC card interactive action " then：It is powered off to IC card and without IC card interactive operation.
3. a kind of IC card according to claim 1 is to position detecting method, which is characterized in that " dynamic without IC card interaction
Further include step after work " step：
One default stand-by period of interval simultaneously reenters " send detection instruction and arrive IC card " step.
4. a kind of IC card according to claim 1 is to position detecting method, which is characterized in that
Include the following steps in step " the response instruction for waiting for and receiving IC card reply "：
Start timing；
Judge whether time-out, if it times out, response instruction is incorrect；
If not having time-out, the response instruction of IC card reply is continued waiting for.
5. according to a kind of IC card of claim 1 to 4 any one of them to position detecting method, it is characterised in that：Step " sends inspection
Instruction is surveyed to IC card " include：
APDU instructions are sent to IC card.
6. according to a kind of IC card of claim 1 to 4 any one of them to position detecting method, it is characterised in that：The IC card is
Bank IC card.
7. a kind of IC card is to level detecting apparatus, which is characterized in that including following module：
Request receiving module：For receiving the request for reading IC card；
Instruction sending module：IC card is arrived for sending detection instruction；
Command reception module：Response instruction for waiting for and receiving IC card reply；
Instruct judgment module：For judging whether response instruction is correct, if correctly, enabling interactive action module, otherwise not
Enabled action interactive module；
Interactive action module：For carrying out IC card interactive action；
Further include IC card seat, for IC card deck for being connect with IC card, IC card seat is without the deck to position detecting mechanism.
8. a kind of IC card according to claim 7 is to level detecting apparatus, which is characterized in that further include that IC card powers on module：
For being powered on to IC card；
Then instruct judgment module：For judging whether response instruction is correct, if correctly, enabling interactive action module and IC card
Module is powered on, otherwise not enabled action interactive module and IC card power on module.
9. a kind of IC card according to claim 7 is to level detecting apparatus, which is characterized in that further include circulate operation module：
For being spaced a default stand-by period and enabling instruction sending module again.
10. a kind of IC card according to claim 7 is to level detecting apparatus, which is characterized in that further include overtime judgment module：
Overtime judgment module is used to start when command reception module is enabled timing, and for judging whether time-out, if it times out,
Response instruction is incorrect, if not having time-out, continues enabled command reception module.
11. according to a kind of IC card of claim 7 to 10 any one of them to level detecting apparatus, it is characterised in that：Instruction is sent
Module is additionally operable to send APDU instructions to IC card.
12. according to a kind of IC card of claim 7 to 10 any one of them to level detecting apparatus, it is characterised in that：The IC card
For bank IC card.
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| CN201511016035.5A CN105654003B (en) | 2015-12-29 | 2015-12-29 | A kind of IC card detection method and device in place |
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| CN109974819B (en) * | 2017-12-27 | 2024-01-12 | 新智数字科技有限公司 | Automatic count detection device and have its gas table |
| CN108256364B (en) * | 2017-12-29 | 2020-12-29 | 浙江大华汽车技术有限公司 | IC card hot plug detection circuit |
| CN109684885B (en) * | 2018-12-27 | 2021-10-08 | 飞天诚信科技股份有限公司 | Method for detecting in-place of card |
| CN113177422B (en) * | 2020-09-30 | 2024-02-20 | 深圳华智融科技股份有限公司 | Card detection method, computer device, and computer-readable storage medium |
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| CN2760674Y (en) * | 2004-10-12 | 2006-02-22 | 肖一峰 | Non-contact IC card read-write equipment for preventing to steal non-contact IC card data and information |
| CN104636696A (en) * | 2015-02-27 | 2015-05-20 | 飞天诚信科技股份有限公司 | Device and method for detecting card-in-field |
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| CN105654003A (en) | 2016-06-08 |
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