CN102122368A - Non-contact type intelligent card with prompting function - Google Patents
Non-contact type intelligent card with prompting function Download PDFInfo
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- CN102122368A CN102122368A CN201010022488XA CN201010022488A CN102122368A CN 102122368 A CN102122368 A CN 102122368A CN 201010022488X A CN201010022488X A CN 201010022488XA CN 201010022488 A CN201010022488 A CN 201010022488A CN 102122368 A CN102122368 A CN 102122368A
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Abstract
The invention discloses a non-contact type intelligent card with a prompting function, comprising a card body and an information prompting module unit, wherein the card body is composed of a rectifying unit, an amplitude-limiting voltage stabilization unit, an access, a voltage detection unit, an independent power-supply current source unit, an independent current driving unit, a main circuit unit, a bleeder circuit unit, an information module control unit and a coupled antenna. The information prompting module unit is composed of a voltage detection unit, an information storage unit and a state displaying unit. In the non-contact type intelligent card, the information prompting module is adopted for designing the circuit, superfluous electric quantity generated in the energy coupling process of the intelligent card can be effectively utilized, the working state of the intelligent card is displayed by the state displaying unit, and the use additional value of the intelligent card is added while ensuring that the intelligent card normally works, thereby satisfying application requirements.
Description
Technical field
The present invention designs a kind of contact type intelligent card, relates in particular to a kind of contact type intelligent card with prompt facility.
Background technology
Contactless smart card has had in fields such as traffic, legal certificate and government utilities widely at present to be used.Current consumer can only be by the passive relevant information of obtaining smart card of read-write equipment in using the contactless smart card process, in case read-write equipment occurs unusually, getting in touch between consumer and the smart card will be cut off.Read-write equipment provides information mode single and can not select, and for example the turnover station gate of subway adopts the screen display mode prompting usually, and the situation of these reading informations in use may appear discerning in blind person, old man, children.For gate inhibition's read-write equipment that sound prompt function is only arranged, if the user can't normally judge the problem that occurs in the use equally for the people of deaf-mute or language obstacle.Therefore how in the contactless smart card use, to improve the multiple mode of user's acquired information, become the developing direction of the convenient use of contactless smart card.
The contact type intelligent card that uses generally all adopts ISO/IEC 14443 standard agreements at present, the electromagnetic intensity size that requires read-write equipment for smart card to provide is 1.5A/m～7.5A/m, and read-write equipment is generally active equipment, and the electromagnetic intensity that satisfies ISO/IEC 14443 standard agreement claimed ranges can be provided.In present practical application, also having non-contact intelligent to be stuck in read-write equipment provides under the electromagnetic intensity of 0.3A/m and just can work.Suppose that the required minimum electromagnetic intensity with contactless smart card is 0.4A/m, efficient by the coupled antenna induction field is 40% to be example, be under the 2A/m condition then in the electromagnetic intensity that read-write equipment provides, there is the energy of 0.8A/m to be caught approximately by contactless smart card, through rectification circuit, amplitude limiter circuit and mu balanced circuit alternating current is become direct current then, remove for contactless smart card work, 50% electric current can only be released by the leak-off pipe path of contactless smart card with having an appointment.And if the required electromagnetic intensity of contactless smart card is littler, and the efficient of coupled antenna inductive electromagnetic field strength is higher, then exists huge energy dissipation at the contactless smart card end.How making good use of the energy that this part is released, is the problem that the present invention considers for smart card brings more purposes.
Summary of the invention
The object of the invention provides a kind of contact type intelligent card with prompt facility, satisfy under the situation of smart card operate as normal making full use of smart card coupling electromagnetic energy, be the function of contactless smart card realization display card internal state information indicating, improve the application added value of contact type intelligent card.
A kind of contact type intelligent card with prompt facility comprises card body and information indicating modular unit two parts:
The card body is made of rectification unit, amplitude limit voltage regulation unit, path, voltage detection unit, independently-powered current source cell, separate current driver element, main body circuit unit, bleeder circuit unit, information module control module and coupled antenna.The information indicating modular unit is made of voltage detection unit, information memory cell and status display unit.
The rectification circuit unit is used for changing the ac signal that the coupled antenna end is coupled to into dc signal and output to the back-end;
The amplitude limit voltage regulation unit is used to guarantee the output voltage that provides stable;
Voltage detection unit, the voltage signal of finishing the path of flowing through detects, and preserves testing result;
Independently-powered current source cell is used to the power supply that provides independently-powered;
The separate current driver element is for the information indicating module provides current drives;
Main body circuit unit, to all instructions that receive handle and and signal output handle;
The bleeder circuit unit, the excess energy that smart card is coupled to discharges;
The information module control module is used for the field intensity information detection of voltage detecting circuit and the state-detection of card body;
Coupled antenna is used for carrying out between smart card and the read-write equipment coupled communication;
Information indicating modular unit end:
Voltage detection unit is used to detect the voltage signal that outputs to status display unit from the separate current driver element;
Information memory cell is used for the storage with writing information of reading of smart card information;
Status display unit is being blocked external the demonstration to information of voltage that will receive and the status information of blocking body.
Increase voltage detection unit, independently-powered current source cell, separate current driver element and information indicating module control unit in the circuit of card body, simultaneously bleeder circuit is improved.In the circuit structure of information indicating module section the information indicating module enable, close and duty by the control module control of breath reminding module.
The present invention is by increasing information indicating modular design circuit, can effectively utilize the unnecessary electric weight that produces in the smart card energy coupling process, and show by the duty of status display unit to smart card, when guaranteeing the smart card operate as normal, increase the use added value of smart card, satisfy application demand.
Description of drawings
A kind of contact type intelligent card structural representation of Fig. 1 with prompt facility
(1) rectification circuit unit; (2) amplitude limit voltage regulation unit; (3) path; (4) voltage detection unit; (5) independently-powered current source cell; (6) separate current driver element; (7) main body circuit unit; (8) bleeder circuit unit; (9) information module control module; (10) voltage detection unit; (11) information memory cell; (12) status display unit.
Embodiment
Below in conjunction with accompanying drawing, content of the present invention is described in detail:
The voltage detection unit (4) of card body A is positioned at amplitude limit voltage regulation unit (2) afterwards, power at every turn and all reset, when having voltage to produce on the path (3), begin the information of voltage V1 of detection path (3) immediately, its upper limit that detects the voltage capability scope must not be lower than path (3) and go up producible maximum voltage value, and this circuit is carrying out can not handling or produce interference to the transmission signals content of the path of flowing through (3) when field intensity detects.On the voltage detecting implementation method, have the ability that detects and store three kinds of situation information of voltage, then testing result is read for information indicating module control unit (9).The voltage of three kinds of situations is respectively: one, the magnitude of voltage on the path (3) is less than opening card body A main body circuit (7) required voltage value; Two, but the magnitude of voltage on the path (3) is greater than opening card body A main body circuit (7) work required voltage value less than opening card body A main body circuit (7) and the required magnitude of voltage of information indicating module B two parts work simultaneously; Three, flow through the magnitude of voltage of path (3) greater than opening card body A main body circuit (7) and the required magnitude of voltage of information indicating unit B two parts work simultaneously.
The independently-powered current source (5) of intelligent card body is positioned at amplitude limit voltage regulation unit (2) afterwards, as independently-powered current source.Under the required lowest high-current value condition of known card body A main body circuit (7) work, the current value of circuit output to the back-end is no more than the required current value maximal value of main body circuit working.
Separate current driver element (6) among the intelligent card body A uses as a separate current driving circuit, if open with the path of information indicating modular unit B, then open the path of information indicating modular unit B and bleeder circuit unit (8) simultaneously, make the electric current information indicating modular unit B that at first flows through, and then unnecessary electric current is discharged by bleeder circuit unit (8).If with the path blockade of information indicating modular unit B, then be defaulted as the electric current of will flow through and directly discharge by bleeder circuit unit (8).
Bleeder circuit unit (8) among the intelligent card body A can be used as independently bleeder circuit unit use, also can carry out related use with the information indicating modular unit B of separate current driver element (6), guarantees that this contactless smart card has high reliability.
Information indicating module control unit (9) among the card body A is activated when starting working when the main body circuit (7) of card body.At first read stored voltage detection information in the voltage detection unit (4), when the information of voltage that reads is can satisfy simultaneously when opening the required magnitude of voltage of card phosphor bodies circuit (7) and the work of information indicating modular unit B two parts, then send enable signal, at first open the path of separate current driver element (6) to information indicating modular unit B to information indicating modular unit B; When the information of voltage that reads can only be to satisfy the required magnitude of voltage of card phosphor bodies circuit (7) work, also send enable signal, and close separate current driver element (6) and arrive the path of one-level circuit thereafter to information indicating modular unit B.Information indicating module control unit (9) finish real-time test card body the main body circuit make state the time, according to practical application request, main body circuit (7) to the card body sends specific instruction or it is in specific state and defines, when detecting the information that meets definition, then send enable signal to information indicating modular unit B, and unlatching separate current driver element (6) is to the path of intelligent card chip status display unit (12), chip status display unit (12) is arrived in the default display mode control information of the intelligent card chip status information that output has simultaneously defined, receive the feedback of status of intelligent card chip duty display unit simultaneously, finish monitoring information indicating modular unit B display message.Display mode control information for information indicating module control unit (9) output can be preset by the main body circuit (7) of intelligent card body A.
Information indicating modular unit B is positioned at after the separate current driver element, when receiving the unlatching control signal of information indicating module control unit (9), then opens with the path of separate current driver element.The voltage detection unit of information indicating modular unit (10) detects the information of voltage V2 that obtains, and will detect information writing information memory circuit (11) then.The upper limit of the detection voltage capability scope of voltage detection unit (10) must not be lower than producible maximum voltage value on the path of separate current driver element (6).Information memory cell (11), the function that main realization is read and write, be used to store chip status information and default display mode control information on the one hand from the control module (9) of information indicating module, from the voltage detecting information of voltage detecting circuit (10) with from the state feedback information of status display unit (12), also allow information indicating module control unit (9) and status display unit (12) to read institute's canned data on the other hand.After status display unit (12) is activated, at first read out the display mode control information that writes the intelligent card chip status information and preset of information indicating module control unit (9) from information memory cell (11), and the voltage detecting information that writes of voltage detection unit (10), control display device then and show.Display unit (12) have strong, the weak ability of the magnitude of voltage of sign, but the absolute value that strong, weak electricity is pressed can carry out according to the characteristics of contactless smart card self-defined after obtaining information to be shown.It has the ability that characterizes the intelligent card chip status information simultaneously, display mode with identical situation of the intelligent card chip status information that has defined with information indicating module control unit (9), the display mode default according to information indicating module control unit (9) shows, can adopt two kinds of display modes of voice and pilot lamp to point out.After the information indicating function is finished in the information indicating unit, unnecessary electric current is discharged by bleeder circuit unit (8).
Claims (5)
1. contact type intelligent card with prompt facility, constitute by card body and information indicating modular unit, it is characterized in that: the card body is made of rectification unit, amplitude limit voltage regulation unit, path, voltage detection unit, independently-powered current source cell, separate current driver element, main body circuit unit, bleeder circuit unit, information module control module and coupled antenna, and the information indicating modular unit is made of voltage detection unit, information memory cell and status display unit.
2. contact type intelligent card with prompt facility is characterized in that: the information of voltage of three kinds of states of storage reads for the information indicating module control unit in the voltage detection unit in the described card body.
3. contact type intelligent card with prompt facility, it is characterized in that: the current maxima that described independently-powered current source cell provided is no more than the required lowest high-current value of main body circuit working.
4. contact type intelligent card with prompt facility, it is characterized in that: the default detection magnitude of voltage upper limit of the voltage detection unit in the described information indicating modular unit is not less than the maximum voltage value in the separate current driver element.
5. contact type intelligent card with prompt facility is characterized in that: the real mode of described status display unit is that voice show or the pilot lamp display mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010022488XA CN102122368A (en) | 2010-01-07 | 2010-01-07 | Non-contact type intelligent card with prompting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010022488XA CN102122368A (en) | 2010-01-07 | 2010-01-07 | Non-contact type intelligent card with prompting function |
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| Publication Number | Publication Date |
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| CN102122368A true CN102122368A (en) | 2011-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010022488XA Pending CN102122368A (en) | 2010-01-07 | 2010-01-07 | Non-contact type intelligent card with prompting function |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105488441A (en) * | 2014-09-19 | 2016-04-13 | 上海华虹集成电路有限责任公司 | Signal grasping and state analyzing method based on chip of non-contact smart card |
| CN108241399A (en) * | 2016-12-27 | 2018-07-03 | 上海华虹集成电路有限责任公司 | Power consumption step suppression circuit |
| WO2020010956A1 (en) * | 2018-07-13 | 2020-01-16 | 深圳市文鼎创数据科技有限公司 | Smart card peripheral apparatus, instruction processing method, electronic device and storage medium |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1711554A (en) * | 2002-11-22 | 2005-12-21 | 索尼株式会社 | Non-contact ic card |
| CN101038616A (en) * | 2006-03-17 | 2007-09-19 | 上海华虹集成电路有限责任公司 | Limiting amplitude protection circuit used in non-contact IC card and radio frequency identification label |
-
2010
- 2010-01-07 CN CN201010022488XA patent/CN102122368A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1711554A (en) * | 2002-11-22 | 2005-12-21 | 索尼株式会社 | Non-contact ic card |
| CN101038616A (en) * | 2006-03-17 | 2007-09-19 | 上海华虹集成电路有限责任公司 | Limiting amplitude protection circuit used in non-contact IC card and radio frequency identification label |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105488441A (en) * | 2014-09-19 | 2016-04-13 | 上海华虹集成电路有限责任公司 | Signal grasping and state analyzing method based on chip of non-contact smart card |
| CN108241399A (en) * | 2016-12-27 | 2018-07-03 | 上海华虹集成电路有限责任公司 | Power consumption step suppression circuit |
| WO2020010956A1 (en) * | 2018-07-13 | 2020-01-16 | 深圳市文鼎创数据科技有限公司 | Smart card peripheral apparatus, instruction processing method, electronic device and storage medium |
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Application publication date: 20110713 |
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