Background technology
Radio RF recognition technology (being called for short RFID) is a kind of non-contacting automatic identification technology, and its ultimate principle is to utilize radiofrequency signal and Space Coupling (electromagnetic induction) or the backward scattered transport property of electromagnetic field, realizes being identified the automatic identification of object.Radio frequency identification is compared with other automatic identification technology (as bar code, magnetic card etc.), have noncontact, operating distance far away, be suitable for rugged surroundings, can identify the advantage such as moving target, therefore need not manual intervention while completing identification mission, and it is not fragile, high-speed moving object can be identified and a plurality of electronic tags can be identified simultaneously, swift and convenient to operate.
Electronic tag is the data carrier for the RFID radio-frequency recognition system, and this radio electronic label is comprised of antenna and special chip, frequency-division section work.Radio RF recognition technology, according to different frequency ranges, can be divided into low frequency 125KHz, 134.2 KHz, high frequency 13.56MHz, ultrahigh frequency 860-940 MHz etc.
Be mainly used in the electronic tag of the ISO14443 agreement of consumer field, current developing direction is that exchanges data speed is more and more faster, and security is more and more stronger, for consumption safety provides more strong assurance; The ISO15603(ISO18000-3 of the open personal management English of main application) electronic tag of agreement, current developing direction is in the scope of physics law operation, improve tag sensitivity, extend operating distance, further strengthen the performance of many label anti-conflictions simultaneously.But, from the angle of application, the development of two groups of agreement electronic tags, need to have been carried out a series of problem with two kinds of electronics aiming field crossed belts, often needs same person to carry two electronic tags simultaneously simultaneously, thereby greatly affected the agility of using.
The utility model content
Goal of the invention of the present utility model is: for the problem of above-mentioned existence, a kind of unifrequency dual chip all-purpose card is provided, can solve well the problem of co-channel interference, can be by two integrated chips of same frequency different agreement on identical carrier, being convenient to the user carries, meet same card and be adapted to varying environment, make applied widelyly, can be applicable.
The technical solution adopted in the utility model is as follows:
Unifrequency dual chip all-purpose card of the present utility model, comprise card, is provided with two chips that are connected on the same antenna in card, and wherein the frequency of operation of two chips is identical.
Owing to having adopted said structure, two chips are placed in same card jointly, and be connected on the same antenna simultaneously, make the frequency of operation of two chips identical, thereby two chips that can overcome different agreement produce the problem of co-channel interference in same card, can by two integrated chips of same frequency different agreement on identical carrier, be convenient to the user and carry, meet same card and be adapted to varying environment.
Unifrequency dual chip all-purpose card of the present utility model, two chips are respectively remote chip and chip closely, and its medium and long distance chip is responsible for online remote without bothering automatic identity authentication, and wherein closely chip is responsible for off-line short distance identification authentication.
Owing to having adopted said structure, its medium and long distance chip is responsible for online remote without bothering automatic identity authentication, comprise personnel identity, testing vehicle register, and closely chip is responsible for off-line short distance identification authentication, comprise personnel identity, testing vehicle register, thereby can solve well the problem of co-channel interference, can, by two integrated chips of same frequency different agreement on identical carrier, be convenient to the user and carry.
Unifrequency dual chip all-purpose card of the present utility model, the power of described remote chip is greater than the closely power of chip.
In two chips, remote chip is responsible for online remote without bothering automatic identity authentication, comprise personnel identity, testing vehicle register, therefore the needed power of its work is larger, closely chip is responsible for short distance identification, be responsible for the off-line authentication, comprise personnel identity, testing vehicle register, therefore the needed power of its work is less, thereby be convenient to two chips of different agreement are placed in same card, be convenient to the user and carry, meet same card and be adapted to varying environment, make applied widelyly, can be applicable.
Unifrequency dual chip all-purpose card of the present utility model, the rectangular configuration that described card is rounding, described antenna is around in the limit section of card.
Hand-held and deposit conveniently for the ease of the people, card is made to the rectangular configuration be rounded down, simultaneously in order to guarantee the effect of this all-purpose card, increase its inductive effects, therefore antenna is around in to the limit section of card, increase the signal intensity that all-purpose card sends, increase the reading/writing distance of all-purpose card, increase its sensitivity.
Unifrequency dual chip all-purpose card of the present utility model, two chips are packaged in by the PVC material to be made in card.
Owing to having adopted said structure, card adopts the PVC material to make, and makes it with low cost, and easy to make, two chips can be fixed in card, meets same card and is adapted to varying environment, makes applied widelyly, can be applicable.
Unifrequency dual chip all-purpose card of the present utility model, described antenna adopts the mode of tap and shared common port to make.
Owing to having adopted said structure, adopt the mode of tap and shared common port to make antenna, antenna surely is located in card by ground, guarantee to lean on being connected surely between two chips and antenna, guarantee its result of use.
In sum, owing to having adopted technique scheme, the beneficial effects of the utility model are:
1, unifrequency dual chip all-purpose card of the present utility model, two different chips of agreement are connected on the same antenna jointly, adopt single frequency to carry out work, can effectively avoid two chips of different frequency, in same card, problem of co-channel interference occurs;
2, unifrequency dual chip all-purpose card of the present utility model can be convenient to the user and carry by two integrated chips of same frequency different agreement on identical carrier, meets same card and is adapted to varying environment, makes applied widelyly, can be applicable.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, unifrequency dual chip all-purpose card of the present utility model, comprise card 1, be provided with two chips that are connected on the same antenna 2 in card 1, wherein the frequency of operation of two chips is identical, wherein two chips are respectively remote chip 3 and chip 4 closely, described remote chip 3 is responsible for online remote without bothering automatic identity authentication, comprise personnel identity, testing vehicle register, the therefore remote needed power of chip operation is larger, described closely chip 4 is responsible for off-line short distance identification authentication, comprise personnel identity, testing vehicle register, therefore closely the needed power of chip operation is less, make the power of described remote chip 3 be greater than the closely power of chip 4.The rectangular configuration that wherein said card 1 is rounding, described antenna 2 is around in the limit section of card 1, and described antenna 2 adopts the mode of taps and shared common port to make, and two chips are packaged in by the PVC material to be made in card 1.
Unifrequency dual chip all-purpose card of the present utility model, two different chips of agreement are connected on the same antenna jointly, adopt single frequency to carry out work, can effectively avoid two chips of different frequency, in same card, problem of co-channel interference occurs; Can by two integrated chips of same frequency different agreement on identical carrier, be convenient to the user and carry, meet same card and be adapted to varying environment, make applied widelyly, can be applicable.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.