A kind of non-contact card of built-in dual chip[technical field]
This utility model relates to RFID technique application, particularly to the non-contact card of a kind of built-in dual chip.
[background technology]
Contactless smart card is the card that a kind of inside is embedded with microchip, comprises a RFID chip, it is not necessary to read-writeAny physical contact of device is just capable of identify that holder, is a kind of non contact angle measurement, interconnection technique.In smart card family,Contact type intelligent card has high power capacity, high reliability and safety anti-fake, simple to operate, the feature of life-span length because of it, variousApplication of IC cards project is more and more paid attention to.Owing to declining steadily of its price the most progressively replaces contact intelligent cardStatus, thus become the main flow in application of IC cards, be widely used in urban public transport, highway automatic charging, intelligenceIn the systems such as energy mansion, work attendance entrance guard management, campus and plant area's all-purpose card.Although contactless smart card has the biggest on usingConvenience, yet with the limitation of built-in chip application, thus causes multiple application to need multiple cards to go to support, there is resourceWaste and problem inconvenient to carry, and it is unfavorable for the realization of many applications jointly all-purpose card.
[utility model content]
In view of this, for overcoming the deficiencies in the prior art, this utility model provides the non-contact card of a kind of built-in dual chip,Two kinds are supported, and the integrated chip of different application is within one is blocked, it is simple to carrying, practicality is higher.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of non-contact card of built-in dual chip, including two functional chips, shared noncontact induction antenna and with instituteState two groups of key switches that chip correspondence connects, described often group key switch and corresponding functional chip, noncontact induction antennaConnect one independent control loop of composition.
Described noncontact induction antenna uses coiling copper cash antenna or FPC substrate antenna to make.
Described key switch is elastic switch, and button uses elastic sheet switch to realize, and two buttons control said two respectivelyThe work of functional chip, carries out chip operation switching by key switch conducting.
By the way, use special connection circuit that the functional chip that two kinds are applied is integrated in a non-contact cardIn, simple to operate, the opening and closing controlling two key switches respectively can control two functional chip work of correspondence or stop.
The beneficial effects of the utility model are, novel in structural design is ingenious, make two kinds of functions by special connectionIntegrated chip is within one is blocked, and can realize two kinds of application of different nature, it is achieved method is simple and reliable, overcomes with first twoFunctional chip cannot be compatible problem, it is to avoid need again the loaded down with trivial details of development system application program.
[accompanying drawing explanation]
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodimentOr the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, the accompanying drawing in describing below is onlyIt is embodiments more of the present utility model, for those of ordinary skill in the art, in the premise not paying creative workUnder, it is also possible to other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model.
In figure, 1, functional chip, 2, functional chip, 3, key switch, 4, key switch, 5, induction antenna.
[detailed description of the invention]
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried outClearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model rather than wholeEmbodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under making creative work premiseThe every other embodiment obtained, broadly falls into the scope of this utility model protection.
With reference to Fig. 1, the non-contact card of a kind of built-in dual chip, including functional chip 1, functional chip 2, key switch 3, byKey switch 4 forms with induction antenna 5 connection, is integrated in a card.
Wherein, functional chip 1 is connected one independent control loop of composition, function core with key switch 3, induction antenna 5Sheet 2 is connected another independent control loop of composition, answering of difference two kinds of chips of control realization with key switch 4, induction antenna 5Use function.
Induction antenna 5 uses copper cash antenna or FPC substrate antenna coiling, forms a loop coil.
Key switch 3,4 is elastic switch, and button uses elastic sheet switch to realize, and is carried out by key switch 3,4 conductingChip operation switches, two corresponding work controlling two functional chips 1,2 of key switch 3,4.
This utility model supports that by two kinds the integrated chip of different application is within one is blocked, it is achieved method is simple and reliable, justIn carrying, economical and practical.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all at thisWithin the spirit of utility model and principle, any modification, equivalent substitution and improvement etc. made, should be included in this utility modelProtection domain within.