CN1457020A - Non-contact intelligent coding identifying chip system - Google Patents
Non-contact intelligent coding identifying chip system Download PDFInfo
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- CN1457020A CN1457020A CN 03119567 CN03119567A CN1457020A CN 1457020 A CN1457020 A CN 1457020A CN 03119567 CN03119567 CN 03119567 CN 03119567 A CN03119567 A CN 03119567A CN 1457020 A CN1457020 A CN 1457020A
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- contact intelligent
- intelligent type
- password identification
- chip system
- time slots
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Abstract
The system uses multiple time slots to transmit identification cipher includes multiple non-contact intelligent cipher identification chips which comprise an identification cipher and can generate a serial number randomly as using this serial number to decide the position of the identification cipher at the multiple time slots, a non-contact intelligent code reader used to inquire the multiple time slots cyclically as per the serial number for reading out identification cipher at each time slot. The system can identify out ciphers one by one from quite large number of cipher chips although there are duplication ciphers contained in the multicipher chip.
Description
Technical field
The present invention relates to a kind of password identification chip system, especially a kind of non-contact intelligent type password identification chip system.
Background technology
General recognition code all is made in the magnetic card, and every magnetic card has a recognition code, brushes on code reader when magnetic card, and code reader promptly may be read into the recognition code on the magnetic card, in order to identification magnetic card user's identity.But the card holder must brush on code reader in use, in the use inconvenience to some extent.Therefore, the someone develops contactless encryption recognition system, improves magnetic card shortcoming in the use.
Contactless encryption recognition system is to see through electromagnetic mode to distinguish recognition code.Its technology has inductive coil 12 as shown in Figure 1 on the code reader 11, can produce the magnetic line of force; Stud with a contactless password identification chip 14 (IC) on the card 13, and coil 15, the built-in recognition code of contactless password identification chip 14 (IC) simultaneously.When card 13 during near code reader, can utilize the principle of electromagnetic induction, coil 15 couplings, and IC is provided the electric energy of running, and the password in the IC can see through coil 15 simultaneously, and it can be considered the magnetic field induction coil, passes signal back code reader 11, supplies the code reader identification.Thus, the holder can save the action of swiping the card, as long as with the close code reader of card, can reach the purpose of identifying cipher.
But above-mentioned prior art is to design at simultaneously only discerning a slice card, if the multi-disc card is read near code reader with the time, password conflict (ID Collision) then will take place and causes the password identification mistake.If someone wishes contactless encryption recognition system, be applied in such as toy or supermarket Cash register etc., in the time of need discerning the environment of multinomial identical or different article simultaneously, clearly, prior art has been not enough to deal with.
Summary of the invention
The objective of the invention is to overcome the shortcoming of prior art, provide a kind of can be in numerous crypto chips, one by one password identification is come out, even have at a plurality of crypto chips under the situation of repetition password, can not cause the password identification mistake because of the password conflict yet, and correctness and accurately high is enough to reach at applied environments such as card identification toy or supermarket Cash registers, discerns the non-contact intelligent type password identification chip system of multinomial identical or different item of articles simultaneously.
For reaching above goal of the invention, the technical solution used in the present invention is as follows: a kind of non-contact intelligent type password identification chip system, be to transmit recognition code by a plurality of time slots (Time Slot), this system includes a plurality of non-contact intelligent type password identification chips, these a plurality of non-contact intelligent type password identification chips have a recognition code, and can produce a numbering at random, this numbering is in order to determine the position of described recognition code at described a plurality of time slots; One non-contact intelligent type code reader is according to the described a plurality of time slots of described number order poll, to read the recognition code of each time slot.
Described a plurality of non-contact intelligent type password identification chip sends the described recognition code on the chip to described non-contact intelligent type code reader with magnetic field energy (Magnetic FieldEnergy) induction mode.Described numbering is by 0 to N, and N is the integer greater than 1.Described a plurality of time slots is 2ms.
Described non-contact intelligent type code reader is the once described a plurality of time slots of poll at least, when the same described time slot of generation transmits a plurality of recognition code, then carry out poll again.Described non-contact intelligent type code reader also comprises a mnemon, to write down described a plurality of time slot and described recognition code.Described non-contact intelligent type code reader also comprises an output unit, to export the content of described mnemon.
A kind of chip identification method of non-contact intelligent type password identification chip system, a plurality of non-contact intelligent type password identification chips are to transmit its recognition code by described a plurality of time slots (Time Slot), its step comprises: each produces a numbering at random to make described a plurality of password identification chip, to determine the position of its recognition code at described a plurality of time slots; Make described contactless code reader according to these these time slots of number order poll, to read the recognition code of each time slot.
Described a plurality of non-contact intelligent type password identification chip sends the described recognition code on the chip to described non-contact intelligent type code reader with magnetic field energy (Magnetic FieldEnergy) induction mode.Described numbering is by 0 to N, and N is the integer greater than 1.Described each time slots is 2ms.Described non-contact intelligent type code reader is the once described a plurality of time slots of poll at least, when the same described time slot of generation transmits a plurality of recognition code, then carry out poll again.Described non-contact intelligent type code reader also comprises a mnemon, to write down described a plurality of time slot and described recognition code.Described non-contact intelligent type code reader also comprises an output unit, to export the content of described mnemon.
Adopt technical scheme of the present invention, can one by one password identification be come out by in numerous crypto chips, even have at a plurality of crypto chips under the situation of repetition password, also can not cause the password identification mistake, and identification correctness and accuracy is very high because of the password conflict.
Description of drawings
Fig. 1 is the calcspar of contactless encryption recognition system in the prior art;
Fig. 2 is the calcspar of non-contact intelligent type password identification chip system of the present invention preferred embodiment;
Fig. 3 produces the embodiment calcspar of identical time-gap number for the different crypto chips of the present invention;
Fig. 4 has the embodiment calcspar of same identification password for the different crypto chips of the present invention.Label declaration:
Output unit 212 mnemons 211
Embodiment
Referring to Fig. 2, be the preferred embodiment of this case non-contact intelligent type password identification chip system.As shown in the figure, three non-contact intelligent type password identification chip IC 1, IC2 and IC3 that have recognition code ID1, ID2 and ID3 respectively place in the electromagnetic field of sensing coil 12 of non-contact intelligent type code reader 21 simultaneously.IC1, IC2 and IC3 are produced electromagnetic induction and after obtaining energy, are produced the numbering of ID1, ID2 and time slot that ID3 places at random by coil 15 and electromagnetic field, are respectively 1,3 and 30, and therefore placing time slot is T1, T3 and T30.
Non-contact intelligent type code reader 21 by each time slot of poll (Polling) to read recognition code, so in the present embodiment, non-contact intelligent type code reader 21 is polled to time slot T31 by time slot T0, each slot time is 2ms, can obtain ID1, T3 at T1 respectively obtains ID2 and obtains ID3 at T30, and obtain recognition result is ID1, ID2 and three recognition codes of ID3, then the result is stored in mnemon 211, again by output unit 212 outputs.
Because non-contact intelligent type password identification chip is to produce numbering with random fashion, produces identical numbering so different chips might take place, and causes a plurality of recognition codes to be placed in the same time slot.As shown in Figure 3, non-contact intelligent type password identification chip IC 1 produces identical numbering with IC2, cause ID1 and ID2 to place time slot T2 simultaneously, the non-contact intelligent type code reader also can be received ID1 and ID2 at T2 simultaneously when polling time slot, for avoiding the password identification mistake, time slot poll result under this kind situation will not adopt, and IC1, IC2 and IC3 must produce new numbering to carry out the poll of another time time slot.
The another kind of situation that Fig. 4 occurs for this case meeting, non-contact intelligent type password identification chip IC 1 and IC2 have same identification password ID1, but the numbering that produces at random is respectively 1 and 3 separately, so the ID1 of IC1 is placed on time slot T1, the ID1 of IC2 then is placed on time slot T3, and the non-contact intelligent type code reader still can be identified according to time slot is different after reading recognition code smoothly.
In addition, if the situation of Fig. 3 and Fig. 4 takes place simultaneously, just different chips have the same identification password, and are placed on identical time slot, and this kind situation generation probability is not high, but in case appearance will cause the puzzlement on the password identification.Therefore in practical operation, the non-contact intelligent type code reader sees through the step that the time slot poll is obtained the recognition code of a plurality of non-contact intelligent type password identification chips, at least more than should repeating once and after obtaining identical result, the recognition result that finally will export of decision just is to improve the correctness and the accuracy of password identification.
This case is with regard to technological layer, considering on the production cost, one group of recognition code of general noncontact password identification chip promptly needs a cover light shield expense, because the characteristics of this case are to discern simultaneously a plurality of non-contact intelligent type password identification chips, so crypto chip is to belong to the product that needs volume production in the practical application.See through chip routing pin and cooperate special circuit design, make a pin can have the technology of three kinds of different logic current potentials, set the recognition code of each non-contact intelligent type password identification chip, can reach with a cover light shield and be used for the production of all crypto chips, and have the recognition codes of very many groups simultaneously.This technology is the power power expansion with three, decides power power, i.e. 3^X by input pin count (X).For example: the non-contact intelligent type password identification chip of this case utilizes five input pins to produce the recognition code of ten positions (Bit), can compile out the different recognition code combination of 3^5=243 kind, and these different passwords can be when chip manufacturing, utilize a cover light shield once to finish, can save production cost greatly.
With regard to application, be fit to very much be used in the toy exploitation, for example card is discerned game machine, with the figuratum card of non-contact intelligent type password identification chip implantation belt, allow child hold card, and the output unit of code reader is promptly read pattern name near the identification of non-contact intelligent type code reader.Certainly, child often can tamely once only not put a slice card and play, and wants code reader to read out on the code reader but take a pile card to be put into, and at this time, this case advantage promptly displays.No matter be many cards with identical or different recognition code, the identification one by one of non-contact intelligent type code reader sees it is to read all pattern names from front to back then, perhaps falling to read to return also not have can not, function is quite powerful really.When other also has Cash registers such as market, supermarket to check out, also can adopt this case technology to assist to keep accounts, as long as on product, implant non-contact intelligent type password identification chip, shift shopping cart onto check-out counter when checking out, just can calculate amount receivable automatically, can make us quite happy when believing shopping at once.
Claims (14)
1, a kind of non-contact intelligent type password identification chip system, be to transmit recognition code by a plurality of time slots, it is characterized in that: this system includes a plurality of non-contact intelligent type password identification chips, these a plurality of non-contact intelligent type password identification chips have a recognition code, and can produce a numbering at random, this numbering is in order to determine the position of described recognition code at described a plurality of time slots; One non-contact intelligent type code reader is according to the described a plurality of time slots of described number order poll, to read the recognition code of each time slot.
2, non-contact intelligent type password identification chip system as claimed in claim 1 is characterized in that: described a plurality of non-contact intelligent type password identification chips send the described recognition code on the chip to described non-contact intelligent type code reader with the magnetic field energy induction mode.
3, non-contact intelligent type password identification chip system as claimed in claim 2 is characterized in that: described numbering is by 0 to N, and N is the integer greater than 1.
4, non-contact intelligent type password identification chip system as claimed in claim 1, it is characterized in that: described a plurality of time slots are 2ms.
5, non-contact intelligent type password identification chip system as claimed in claim 1, it is characterized in that: described non-contact intelligent type code reader is the once described a plurality of time slots of poll at least, when the same described time slot of generation transmits a plurality of recognition code, then carry out poll again.
6, non-contact intelligent type password identification chip system as claimed in claim 1, it is characterized in that: described non-contact intelligent type code reader also comprises a mnemon, to write down described a plurality of time slot and described recognition code.
7, non-contact intelligent type password identification chip system as claimed in claim 6, it is characterized in that: described non-contact intelligent type code reader also comprises an output unit, to export the content of described mnemon.
8, a kind of chip identification method of non-contact intelligent type password identification chip system as claimed in claim 1, described a plurality of non-contact intelligent type password identification chip is to transmit its recognition code by described a plurality of time slots, it is characterized in that: its step comprises: each produces a numbering at random to make described a plurality of password identification chip, to determine the position of its recognition code at described a plurality of time slots; Make described contactless code reader according to these these time slots of number order poll, to read the recognition code of each time slot.
9, the chip identification method of non-contact intelligent type password identification chip system as claimed in claim 8 is characterized in that: described a plurality of non-contact intelligent type password identification chips send the described recognition code on the chip to described non-contact intelligent type code reader with the magnetic field energy induction mode.
10, the chip identification method of non-contact intelligent type password identification chip system as claimed in claim 8 is characterized in that: described numbering is by 0 to N, and N is the integer greater than 1.
11, the chip identification method of non-contact intelligent type password identification chip system as claimed in claim 8 is characterized in that: described each time slots is 2ms.
12, the chip identification method of non-contact intelligent type password identification chip system as claimed in claim 8, it is characterized in that: described non-contact intelligent type code reader is the once described a plurality of time slots of poll at least, when the same described time slot of generation transmits a plurality of recognition code, then carry out poll again.
13, the chip identification method of non-contact intelligent type password identification chip system as claimed in claim 8 is characterized in that: described non-contact intelligent type code reader also comprises a mnemon, to write down described a plurality of time slot and described recognition code.
14, the chip identification method of non-contact intelligent type password identification chip system as claimed in claim 8 is characterized in that: described non-contact intelligent type code reader also comprises an output unit, to export the content of described mnemon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031195679A CN1303565C (en) | 2003-03-11 | 2003-03-11 | Non-contact intelligent coding identifying chip system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031195679A CN1303565C (en) | 2003-03-11 | 2003-03-11 | Non-contact intelligent coding identifying chip system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1457020A true CN1457020A (en) | 2003-11-19 |
| CN1303565C CN1303565C (en) | 2007-03-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031195679A Expired - Fee Related CN1303565C (en) | 2003-03-11 | 2003-03-11 | Non-contact intelligent coding identifying chip system |
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| CN (1) | CN1303565C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332512C (en) * | 2004-07-14 | 2007-08-15 | 上海贝岭股份有限公司 | Anti-collision method in radio frequency identification technology |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH096934A (en) * | 1995-06-19 | 1997-01-10 | Mitsubishi Heavy Ind Ltd | Radio discrimination device |
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2003
- 2003-03-11 CN CNB031195679A patent/CN1303565C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332512C (en) * | 2004-07-14 | 2007-08-15 | 上海贝岭股份有限公司 | Anti-collision method in radio frequency identification technology |
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| Publication number | Publication date |
|---|---|
| CN1303565C (en) | 2007-03-07 |
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Granted publication date: 20070307 |