CN102663472A - Contactless radio frequency card capable of preventing unauthorized swiping - Google Patents
Contactless radio frequency card capable of preventing unauthorized swiping Download PDFInfo
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- CN102663472A CN102663472A CN2012101127354A CN201210112735A CN102663472A CN 102663472 A CN102663472 A CN 102663472A CN 2012101127354 A CN2012101127354 A CN 2012101127354A CN 201210112735 A CN201210112735 A CN 201210112735A CN 102663472 A CN102663472 A CN 102663472A
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- frequency card
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Abstract
The invention discloses a contactless radio frequency card capable of preventing unauthorized swiping. The contactless radio frequency card comprises a plastic card body, an IC (integrated circuit) chip and an induction antenna. The contactless radio frequency card is characterized in that a light dependent resistor module is further connected between the IC chip and the induction antenna, an illuminated face of the light dependent resistor is exposed on the surface of the card, a light dependent resistor device is used for detecting whether the radio frequency card is in an illuminated state or in a non-illuminated state so as to judge whether the swiping of the radio frequency card is an action authorized by an original holder or not, a light dependent resistor is used for cutting off a power source to start or suspend a transaction, and accordingly safety of privacy and electronic cash on the radio frequency card of users is guaranteed.
Description
Technical field
The present invention relates to a kind of noncontact radio frequency card that possessor's radio-frequency card is illegally swiped the card of preventing; Be specifically a kind of radio-frequency card possessor under unauthorized state, prevent that other people from using non-contact portable equipment to carry out the noncontact radio frequency card that malicious data reads.
Background technology
At present, noncontact radio-frequency card and radio-frequency technique are used widely gradually, like Bus Card, and bank's contactless IC card etc.Its core is exactly RFID and NFC radio-frequency technique, its with card reader generation communication process in, possessed very strong technical safety measures arranged.
But in the payment link, legal card reader also might be used by illegal malice.As other people use legal card reader at malice in public places; In short distance, also can read the radio-frequency card of user in being placed on one's body or wrapping; Thereby cause the privacy in user's radio-frequency card also to be read; Electronic cash is illegally accessed in the card simultaneously, and the user does not know that its radio-frequency card that carries has produced transaction.
In order to address the above problem, prior art provides: as long as the non-contact card user does not press the button that provides on this card, just stop the use of non-contact card.This method need add a button, and each use all will be opened switch, and is very inconvenient, and the reliability of switch also influences the user and uses.
Prior art also provides: the noncontact radio-frequency card is put into can, stop electromagnetic wave through can, stop illegally reading radio-frequency card.The user need open can and could use, and the process of swiping the card has produced interruption, contradicts with the consumption use theory of " i.e. brush promptly use ".
Chinese patent publication number CN101836223A: the behavioral approach and the equipment that are used to prevent under the situation of the mandate that does not have the possessor, to use contactless portable device; Its through sensor catch radio-frequency card physical location, move, information such as pressure, temperature; With the judgement that compares of information recorded, whether the user is in licensing status.Its shortcoming is that radio-frequency card needs loading power, sensor and computational resource, is only applicable to be configured in the RFID/NFC equipment on the smart mobile phone, and its application cost is than higher.
The special proposition of the present invention is a kind of through detecting the physical environment of radio-frequency card itself for this reason, and promptly radio-frequency card is in illumination state and non-illumination state, judges whether this radio-frequency card is possessor's act of authorization.
Summary of the invention
The objective of the invention is: the passive RF card that carries for the user provides a kind of safety precautions, prevents the user in the process of carrying, and under unwitting situation, is illegally concluded the business and deducts fees.
The present invention is according to user's custom in use: radio-frequency card normally be placed on one's body or handbag in, promptly radio-frequency card is in unglazed according to state; When using when swiping the card, promptly radio-frequency card is under the subscriber authorisation state, and its situation is that this radio-frequency card is removed and places near the card reader, and promptly the radio-frequency card of this moment is in the illumination state.Therefore, the present invention is equipped with the illumination pick-up unit on radio-frequency card, and it connects the trading activity that triggers IC chip on the radio-frequency card through Control current.Particular content is following:
Prevent unauthorized noncontact radio frequency card of swiping the card, it is made up of plastic clip matrix, IC chip, induction antenna, it is characterized in that: also be connected with the photoresistance module between IC chip and the induction antenna, wherein the sensitive surface of photoresistance is exposed on the card face.
The user is when using this card, and photoresistance is exposed under the light, and its resistance value is very low, and in the radio frequency induction process, electric current and payment information can be delivered to the IC chip, accomplishes contactless payment.And radio-frequency card is on the user's body or handbag in the time, a little less than unglazed basically photograph or the illumination very, the resistance of photoresistance is very high; Even foreign current is arranged; Also can't reach the required voltage of IC chip operation, cause radio-frequency card not respond, this illegally reads nature and is ended.
Said photoresistance requires response is apace made in more weak illumination, even so that radio-frequency card is in the public transport compartment under the low light environment, also can accomplish the payment process of radio frequency.
Some user's custom is placed radio-frequency card in the handbag, so that in the process of swiping the card, its need streak card reader with handbag just can accomplish payment.In order to satisfy its user demand, the noncontact radio frequency card that prevents that unauthorized from swiping the card of the present invention also is equipped with a short circuiting switch that photoresistance is played the short circuit effect on the said photoresistance module.The user can use this switch, and short circuit is implemented in photoresistance, and photoresistance can not be worked again, so also can accomplish at dark surrounds and normally swipe the card.
Especially be pointed out that: the use of this switch can be very not frequent, and the user need not to swipe the card at every turn and wants switch, and still very easily, above-mentioned IC chip can only be made small amount payment when the photoresistance short circuit for the user.
Noncontact is swiped the card in the process, and the one side of card must be towards light source side, if having only one side that photoresistance arranged; The comfort level that the user uses can be weaker; Therefore, noncontact radio frequency card of the present invention, said photoresistance parallel connection is arranged on the tow sides of radio-frequency card.Therefore, no matter which face the user will block towards, all have one side can accept illumination.
Under particular surroundings, photoresistance maybe be inoperative, needs the support of external power supply this moment, therefore, on the said photoresistance module solar film battery is installed also.
In bank's contactless IC card, can enclose the bigger fund of depositing in the IC chip, as 1000 yuan, if should lose by card, this electronic cash will be by other people legal use.The method that solves is to report the loss, but reports the loss poorly if having time, and this part cash still has the risk of losing.The present invention proposes solution, said photoresistance module is made up of 10 photoresistance and special logical circuit, and the user need hide 1 to 2 photoresistance and impel logical circuit to connect wholesale payment circuit.
The photoresistance that the need of arranging in the above-mentioned logical circuit hide is that this informs the user when being stuck in distribution, has only the user to know.Lose like this card, other people can't use when doing the wholesale payment exactly, therefore can be judged and the refusal transaction by IC-card, and outside the number of times of restriction, trade fair are by locking fully.As the minimum amount that is provided with this function is 20 yuan of every days, and the user at most also only can lose 20 yuan like this, and it has time enough to report lost property to the authorities, to prevent that the electronic cash in the card from being brushed away apace.
Said IC chip has an identification to photoresistance, even card is cut open and takes out photoresistance and can not pay.
Know-why of the present invention is: utilize important characteristic in the non-contact card user use: promptly radio-frequency card is at unauthorized state; The user is placed on one's body or in the handbag; At this moment radio-frequency card is in unglazed according to state, and in the use of swiping the card, promptly radio-frequency card is under the situation of subscriber authorisation; Major part is that radio-frequency card is removed and places near the card reader, and radio-frequency card is in the illumination state at this moment.The present invention detects radio-frequency card through photoresistance device of installation on the noncontact radio-frequency card and is in illumination state and non-illumination state; Judge whether this radio-frequency card is the behavior that the possessor authorizes, and the blocking-up behavior of power supply is opened or abort transactoin through photoresistance.
Advantage of the present invention is: the built-in photoresistance cost of radio-frequency card is extremely low, and volume is very little, is fit to very much be installed in the radio-frequency card, and this card is simple in structure, cost is low, has solved the fund security problem in the payment link.
The invention has the beneficial effects as follows: the radio-frequency card possessor can prevent effectively that other people from using legal contactless portable device under the situation that is not having to authorize, and possessor's radio-frequency card is carried out illegal reading of data behavior; The combination of a plurality of photoresistance is simultaneously used, and can avoid electronic cash stolen brush before the user reports the loss.
Description of drawings
Fig. 1 is the circuit structure diagram of radio-frequency card of the present invention;
Label declaration among the figure:
Radio-frequency card (101), IC chip (102), induction antenna (103), circuitry lines (104), photoresistance module (105), short circuiting switch (106).
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described:
According to accompanying drawing 1, IC chip (102) and induction antenna (103) are installed in the radio-frequency card (101), photoresistance module (105) is connected on inductive coil (103) and the IC chip (102) through circuitry lines (104).The sensitive surface of photoresistance module (105) is identical with radio-frequency card (101) plane.
Embodiment one: photoresistance module (105) is equipped with a short circuiting switch (106) on the surface, and after the user stirred, photoresistance module (105) was by short circuit, and radio-frequency card can be placed on Bao Nei and the darker environment and normally swipe the card this moment.Short circuiting switch (106) places the benefit on photoresistance module (105) surface to be, need not to go up at radio-frequency card (101) other circuit are installed again, and mechanical switch is also settled than being easier to.
Embodiment two: photoresistance module (105) includes has 10 little photoresistance, and links to each other with a logical circuit, photoresistance marked " 0-9 " numeral.In the initialization of radio-frequency card, through authorizing the logical circuit of back treaty rule, promptly the user needs in use, hides 1 to 2 resistance, could be communicated with the IC chip.
The above; It only is preferred embodiment of the present invention; Be not that any pro forma restriction is done in design of the present invention and scope, any those of ordinary skill in the art are not breaking away under the technical scheme scope situation of the present invention; Utilize the principle content of above-mentioned announcement that technical scheme of the present invention is made many possible changes and modification, all belong to the scope of claim of the present invention.
Claims (5)
1. prevent unauthorized noncontact radio frequency card of swiping the card; It is made up of plastic clip matrix, IC chip, induction antenna; It is characterized in that: also be connected with the photoresistance module between IC chip and the induction antenna, wherein the sensitive surface of photoresistance is exposed on the card face.
2. the noncontact radio frequency card that prevents that unauthorized from swiping the card according to claim 1 also is equipped with one photoresistance is played the short circuiting switch of short circuit effect on the said photoresistance module, the IC chip can only be made small amount payment when the photoresistance short circuit.
3. the noncontact radio frequency card that prevents that unauthorized from swiping the card according to claim 1, said photoresistance parallel connection is arranged on the tow sides of radio-frequency card.
4. the noncontact radio frequency card that prevents that unauthorized from swiping the card according to claim 1 also is equipped with solar film battery on the said photoresistance module.
5. the noncontact radio frequency card that prevents that unauthorized from swiping the card according to claim 1, said photoresistance module is made up of 10 photoresistance and special logical circuit, and the user need hide 1 to 2 photoresistance and impel logical circuit to connect wholesale payment circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101127354A CN102663472A (en) | 2012-04-17 | 2012-04-17 | Contactless radio frequency card capable of preventing unauthorized swiping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101127354A CN102663472A (en) | 2012-04-17 | 2012-04-17 | Contactless radio frequency card capable of preventing unauthorized swiping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102663472A true CN102663472A (en) | 2012-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101127354A Pending CN102663472A (en) | 2012-04-17 | 2012-04-17 | Contactless radio frequency card capable of preventing unauthorized swiping |
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| Country | Link |
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| CN (1) | CN102663472A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103489029A (en) * | 2013-09-26 | 2014-01-01 | 中国联合网络通信集团有限公司 | Radio frequency card |
| CN105787393A (en) * | 2016-02-22 | 2016-07-20 | 苏州海博智能系统有限公司 | Contactless smart card with security protection function and security protection method thereof |
| IT201800004051A1 (en) * | 2018-03-28 | 2019-09-28 | St Microelectronics Srl | NEAR FIELD COMMUNICATION DEVICE AND CORRESPONDING MANUFACTURING PROCEDURE |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1348571A (en) * | 1999-03-23 | 2002-05-08 | 德国捷德有限公司 | Data carrier with a battery and display |
| CN102024172A (en) * | 2009-09-23 | 2011-04-20 | 虹堡科技股份有限公司 | Composite chip card structure with safety protection interface and control method thereof |
| CN201835620U (en) * | 2010-10-19 | 2011-05-18 | 方荣光 | Photosensitive reaction unit for optical password locks |
-
2012
- 2012-04-17 CN CN2012101127354A patent/CN102663472A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1348571A (en) * | 1999-03-23 | 2002-05-08 | 德国捷德有限公司 | Data carrier with a battery and display |
| CN102024172A (en) * | 2009-09-23 | 2011-04-20 | 虹堡科技股份有限公司 | Composite chip card structure with safety protection interface and control method thereof |
| CN201835620U (en) * | 2010-10-19 | 2011-05-18 | 方荣光 | Photosensitive reaction unit for optical password locks |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103489029A (en) * | 2013-09-26 | 2014-01-01 | 中国联合网络通信集团有限公司 | Radio frequency card |
| CN103489029B (en) * | 2013-09-26 | 2017-02-08 | 中国联合网络通信集团有限公司 | Radio frequency card |
| CN105787393A (en) * | 2016-02-22 | 2016-07-20 | 苏州海博智能系统有限公司 | Contactless smart card with security protection function and security protection method thereof |
| IT201800004051A1 (en) * | 2018-03-28 | 2019-09-28 | St Microelectronics Srl | NEAR FIELD COMMUNICATION DEVICE AND CORRESPONDING MANUFACTURING PROCEDURE |
| EP3547726A1 (en) * | 2018-03-28 | 2019-10-02 | STMicroelectronics Srl | Near field communication device and corresponding manufacturing process |
| CN110321990A (en) * | 2018-03-28 | 2019-10-11 | 意法半导体股份有限公司 | Near-field communication equipment and corresponding manufacturing process |
| US11003973B2 (en) | 2018-03-28 | 2021-05-11 | Stmicroelectronics S.R.L. | Near field communication device and corresponding manufacturing process |
| CN110321990B (en) * | 2018-03-28 | 2023-08-01 | 意法半导体股份有限公司 | Near field communication device and corresponding manufacturing process |
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Application publication date: 20120912 |