CN203376771U

CN203376771U - Non-contact IC card with double-antenna stereoscopic nesting

Info

Publication number: CN203376771U
Application number: CN201320413809.8U
Authority: CN
Inventors: 周刚; 贺亮; 宋丹; 蔡刚山; 骆虎
Original assignee: WESTI SCIENCE PARK INCUBATOR Co Ltd
Current assignee: WESTI SCIENCE PARK INCUBATOR Co Ltd
Priority date: 2013-07-12
Filing date: 2013-07-12
Publication date: 2014-01-01
Anticipated expiration: 2023-07-12

Abstract

The utility model provides a non-contact IC card with double-antenna stereoscopic nesting. The non-contact IC card comprises a plastic jacket, a first antenna, a first LC resonant circuit, a first IC chip, a second antenna, a second LC resonant circuit, and a second IC chip. The first antenna, the first LC resonant circuit and the first IC chip are in electrical connection orderly. The second antenna, the second LC resonant circuit and the second IC chip are in electrical connection orderly. The first antenna and the second antenna are arranged in a mutually vertical nesting way. The first antenna comprises a first antenna plane, and the second antenna comprises a second antenna plane. The first antenna plane and the second antenna plane are in perpendicular intersection. According to the non-contact IC card with double-antenna stereoscopic nesting, data is dispersed and stored in the first IC chip and the second IC chip in advance, and one time of excitation is needed respectively to obtain complete data. According to the non-contact IC card with double-antenna stereoscopic nesting, two times of excitation are needed to obtain the complete data, effectively prevent relay attack and effectively protect the interest of a legitimate holder of the IC card.

Description

The non-contact IC card that a kind of double antenna is three-dimensional nested

Technical field

The utility model relates to a kind of IC-card (Integrated Circuit Card, integrated circuit card), relates in particular to the non-contact IC card of the multi-direction triggering of a kind of needs.

Background technology

Non-contact IC card, claim again radio-frequency card, contactless card, IC (integrated circuit, integrated circuit) chip, induction antenna, consists of, and is encapsulated in the plastic cards of a standard, and chip and antenna are without any exposed parts.Card near the read write line surface, completes the read-write operation of data in the certain distance scope by the transmission of radiowave.

Existing non-contact IC card, every card is equipped with an antenna, a L/C resonant circuit and an IC chip.When the antenna reception of non-contact IC card encourages to read-write, the part that this card will encourage and the L/C of itself produce resonance, produce a transient energy and supply with chip operation, another part is in conjunction with the energy produced, make chip complete the modification, storage etc. of data, and by the antenna return data.

Existing non-contact IC card, to card, emission once encourages and just can produce complete response.

Existing non-contact IC card data are stored in IC chip unique in card, an operating cycle read-write primary information.

The communications protocol of existing non-contact IC card is disclosed, and anyone can make Contactless IC Card Reader.

Because existing IC-card card reader operation IC-card has above-mentioned shortcoming, so the mode that rogue attacks person can utilize relay to attack obtains unlawful interests, to legal holden, causes damage.

Relay is attacked and referred to: rogue attacks person does not need to understand the inner technical manual of encrypting of IC-card fully and just can implement to attack, assailant A holds IC-card card reader general on market near legal holden, at this moment can produce the behavior of once swiping the card normally, data read card reader, then the data that assailant A reads card reader are by the 3G network of mobile phone, perhaps other wireless communication mode sends to assailant B, assailant B data in strange land has just obtained the card of legal holden so, the IC-card that assailant B just is equivalent to hold on hand legal holden is the same, can be consumed or by gate inhibition etc.

The utility model content

The technical problems to be solved in the utility model is: overcome existing non-contact IC card and only need to receive once excitation, easily suffer relay to attack the defect of bringing loss to the IC-card holder in due course, provide a kind of and need to twice excitation after, could obtain complete data, effectively prevent the relay attack, effectively protect the nested non-contact IC card of double antenna solid of IC-card holder in due course interests.

In order to solve the problems of the technologies described above, the utility model proposes following technical scheme: the non-contact IC card that a kind of double antenna is three-dimensional nested, it comprises a plastic envelope, one first antenna, one the one LC resonant circuit, one the one IC chip, one second antenna, one the 2nd LC resonant circuit, one the 2nd IC chip;

This first antenna, a LC resonant circuit, an IC chip are electrically connected successively;

This second antenna, the 2nd LC resonant circuit, the 2nd IC chip are electrically connected successively;

This first antenna and this second antenna are arranged according to orthogonal nested mode;

This first antenna comprises first antenna plane that can receive pumping signal, and this second antenna comprises second antenna plane that can receive pumping signal;

This first antenna, a LC resonant circuit, an IC chip, the second antenna, the 2nd LC resonant circuit, the 2nd IC chip are installed to plastic envelope inside;

This first antenna plane and this second antenna plane intersect vertically;

The three-dimensional nested non-contact IC card of this double antenna disperses data in advance to store in an IC chip and the 2nd IC chip, need to respectively encourage first power can obtain complete data to an IC chip and the 2nd IC chip.

The further restriction of technique scheme is, this plastic envelope is a rectangular shape.

The further restriction of technique scheme is, the surrounding of this plastic envelope is encapsulated.

Compared with prior art, the utlity model has following beneficial effect:

1, the excitation that only produces a direction due to existing IC-card card reader when operating IC-card; can not produce the excitation of two perpendicular directions simultaneously; and the utility model IC-card must could obtain partial data from perpendicular both direction carries out twice excitation; while therefore by existing IC-card card reader, operating the utility model IC-card; excitation once only has an IC chip can produce response afterwards; and obtain incomplete data; finally cause the Card Reader failure; can effectively protect IC-card holder in due course's interests, avoid causing damage.

If 2 rogue attacks persons carry out twice excitation from vertical both direction, increased the difficulty that rogue attacks person carries out the relay attack, can effectively protect equally IC-card holder in due course's interests, avoid causing damage.

The accompanying drawing explanation

Fig. 1 is the three-dimensional exploded view of the three-dimensional nested non-contact IC card of the utility model double antenna.

Fig. 2 is the schematic diagram of the three-dimensional nested non-contact IC card of the utility model double antenna.

Embodiment

As shown in Figure 1 to Figure 2, the utility model proposes the three-dimensional nested non-contact IC card of a kind of double antenna, it comprises a plastic envelope 1, one first antenna 2, one the one LC resonant circuit 3, one the one IC chip 4, one second antenna 5, one the 2nd LC resonant circuit 6, one the 2nd IC chip 7.

This plastic envelope 1 is a rectangular shape.

This first antenna 2, a LC resonant circuit 3, an IC chip 4 are electrically connected successively.

This second antenna 5, the 2nd LC resonant circuit 6, the 2nd IC chip 7 are electrically connected successively.

This first antenna 2 and this second antenna 5 are complied with nested mode mutual vertically and are arranged.

This first antenna 2 comprises first antenna plane 22 that can receive pumping signal.

This second antenna 5 comprises second antenna plane 52 that can receive pumping signal.

After the first antenna 2, a LC resonant circuit 3, an IC chip 4, the second antenna 5, the 2nd LC resonant circuit 6, the 2nd IC chip 7 are installed to plastic envelope 1 inside, the surrounding of plastic envelope 1 is encapsulated, intraware does not expose.

After installing, this first antenna 2 and this second antenna 5 intersect vertically, and this first antenna plane 22 and this second antenna plane 52 also intersect vertically.

As shown in Figure 2, the direction of excitation A is perpendicular to the first antenna plane 22, so the first antenna 2 responsing excitation A, and this second antenna plane 52 is parallel with excitation A direction, so this second antenna 5 can responsing excitation A.The direction of excitation B is perpendicular to the second antenna plane 52, so the second antenna 5 responsing excitation B, and this first antenna plane 22 is parallel with excitation B direction, so this first antenna 2 can responsing excitation B.

The non-contact IC card that the utility model double antenna is three-dimensional nested, in the time of the first antenna 2 responsing excitation, IC chip 4 job, the 2nd IC chip 7 is not worked.In the time of the second antenna 5 responsing excitation, the 2nd IC chip 7 work, an IC chip 4 is not worked.

The three-dimensional nested non-contact IC card of the utility model double antenna disperses data in advance to store in an IC chip 4 and the 2nd IC chip 7.

The three-dimensional nested non-contact IC calorie requirement of the utility model double antenna respectively encourages once an IC chip 4 and the 2nd IC chip 7, after obtaining two data in the IC chip, by ad hoc fashion, is combined into complete data.

Actual while using the three-dimensional nested non-contact IC card of the utility model double antenna, optimal way is, first one of them antenna (as the first antenna 2) is sent to excitation, the IC chip (as an IC chip 4) corresponding to this antenna carries out read-write operation, then another antenna (as the second antenna 5) is sent to excitation, another IC chip (as two IC chip 7) corresponding to this another antenna carries out read-write operation, and the data that obtain after two IC chip operations are only to effective information by the ad hoc fashion combination.

Another kind of mode, also can send excitation to two antennas (the first antenna 2 and the second antenna 5) simultaneously, two IC chips (an IC chip 4 and the 2nd IC chip 7) are carried out to read-write operation simultaneously, the data that obtain after two IC chip operations are only to effective information by the ad hoc fashion combination.

The utlity model has following beneficial effect:

Claims

1. the non-contact IC card that double antenna is three-dimensional nested, is characterized in that, it comprises a plastic envelope, one first antenna, one the one LC resonant circuit, one the one IC chip, one second antenna, one the 2nd LC resonant circuit, one the 2nd IC chip;

This first antenna plane and this second antenna plane intersect vertically;

2. the three-dimensional nested non-contact IC card of double antenna according to claim 1, is characterized in that, this plastic envelope is a rectangular shape.

3. the three-dimensional nested non-contact IC card of double antenna according to claim 1 and 2, is characterized in that, the surrounding of this plastic envelope is encapsulated.