CN211406359U

CN211406359U - Time sequence luminous smart card

Info

Publication number: CN211406359U
Application number: CN201921837375.8U
Authority: CN
Inventors: 苏爱民
Original assignee: Shanghai Yixin Intelligent Technology Co ltd
Current assignee: Shanghai Yixin Intelligent Technology Co ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-09-01
Anticipated expiration: 2029-10-29

Abstract

The application discloses luminous smart card of chronogenesis includes: the system comprises an electric energy acquisition module and a time sequence light-emitting module, wherein the electric energy acquisition module is used for acquiring electric energy based on radio waves emitted by an intelligent card induction reader-writer; and the time sequence light-emitting module is used for driving the light-emitting state of the controlled light source on the intelligent card to change according to time sequence based on the electric energy. Adopt the utility model discloses, obtain the electric energy through the electric wave that utilizes antenna response smart card reader-writer, and then drive smart card utilizes time sequence light control circuit to carry out the luminous logic control of time sequence, can carry out the luminous control based on the chronogenesis transform to controlled light source luminous state in the smart card, when guaranteeing the original data read write function of luminous smart card, strengthen the data display function of smart card.

Description

Time sequence luminous smart card

Technical Field

The application relates to the field of smart cards, in particular to a time sequence luminous smart card.

Background

Smart cards, also known as IC cards, smart cards, microchip cards, etc., are produced by embedding a dedicated integrated circuit chip in a PVC (or ABS, etc.) plastic substrate conforming to ISO7816 standards, and encapsulating the chip in the form of a card having a shape similar to a magnetic card, or in the form of a special shape such as a button, a key, an ornament, etc. The current smart card can realize data interaction with an RFID radio frequency card reader by adding an induction coil and a related wireless signal modulation circuit, and is called as an RFID smart card. The RFID smart card generally does not have a battery, works by depending on electromagnetic energy sent by a card reader, has a simple structure, is economical and practical, and is widely applied. The passive RFID tag is composed of an RFID IC, a resonant capacitor C and an antenna L, wherein the antenna and the capacitor form a resonant loop, and the resonant loop is tuned at the carrier frequency of the card reader to obtain the best performance. The RFID uses 6 wireless signal frequencies, which are 135KHz, 13.56MHz, 43.3-92MHz, 860-930MHz (i.e. UHF), 2.45GHz and 5.8GHz, and the passive RFID smart card mainly uses the former two frequencies.

Common RFID smart cards do not have a light emitting function. In recent years, in order to provide a user with a remarkable prompt or further enhance the aesthetic feeling and interest of the smart card during the card reading process, and better meet the personalized requirements of people on the smart card, some smart card manufacturers begin to add a light-emitting function to the smart card. The function is based on the induction coil, a circuit and a light-emitting device are added, and the light-emitting device on the card is driven to emit light while the RFID smart card is read and written, so that the functions of reminding and decoration are realized. However, the existing smart card cannot control the lighting timing sequence, power supply, flash frequency, color, brightness, etc. of a plurality of light sources in the card, thereby affecting the display function of the lighting smart card.

SUMMERY OF THE UTILITY MODEL

The main objective of the present application is to provide a time sequence light-emitting smart card, which can control the light-emitting state of the smart card to perform time sequence transformation, so as to enhance the data display function of the smart card.

In order to achieve the above object, the present application provides a time-series luminescent smart card, which may include: the device comprises an electric energy acquisition module and a time sequence light-emitting module; the electric energy acquisition module is electrically connected with the time sequence light-emitting module;

the electric energy acquisition module is used for acquiring electric energy based on radio waves emitted by the smart card induction reader-writer;

and the time sequence light-emitting module is used for driving the light-emitting state of the controlled light source on the intelligent card to change according to time sequence based on the electric energy.

Further, the light emitting timing of the light emitting state is continuously switched in units of several clock cycles.

Further, the light emitting state includes light emitting time lengths, light emitting colors, flicker frequencies and light emitting luminances of different controlled light sources.

Further, the controlled light source is one or more.

Further, the sequential logic control data in the sequential light-emitting module is a binary boolean value.

Further, the time sequence light-emitting module is further configured to control the controlled light source to display the corresponding light-emitting duration, light-emitting color, light-emitting frequency, and light-emitting brightness according to a logic code composed of boolean values 0 and/or 1.

Furthermore, the light emitting state of each controlled light source at any moment corresponds to a group of Boolean values.

Further, the light emitting states of the controlled light sources together form a light emitting pattern.

Furthermore, the time sequence light-emitting module comprises a control center and a time sequence control circuit.

Furthermore, the time sequence control circuit comprises a clock unit, a logic unit, a serial-parallel conversion unit and a data decoding unit; the clock unit is respectively and electrically connected with the logic unit and the serial-parallel conversion unit, the logic unit is electrically connected with the serial-parallel conversion unit, and the serial-parallel conversion unit is electrically connected with the data decoding unit.

In the embodiment of the application, the luminous smart card with the luminous state capable of being changed according to the time sequence is provided, electric energy is obtained by utilizing the antenna to sense electric waves of the smart card reader-writer, and then the smart card is driven to carry out logic control of time sequence luminous by utilizing the time sequence luminous control circuit, so that the luminous control based on time sequence change on the luminous state of the controlled light source in the smart card is realized, the original data read-write function of the luminous smart card is ensured, and the data display function of the smart card is enhanced.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:

fig. 1 is a schematic structural diagram of a smart card according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of an internal structure of a smart card according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a time-sequential light emitting module according to an embodiment of the present invention;

4 a-4 d are schematic diagrams of the lighting effect of the smart card provided by the embodiment of the invention;

FIG. 5 is a schematic diagram of a timing control circuit according to an embodiment of the present invention;

FIG. 6 is a circuit diagram of a clock unit according to an embodiment of the present invention;

FIG. 7 is a circuit diagram of a logic cell provided by an embodiment of the present invention;

fig. 8 is a circuit connection diagram of a serial-parallel conversion unit provided by the embodiment of the present invention;

fig. 9 is a circuit connection diagram of a data decoding unit according to an embodiment of the present invention.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "comprises" and "comprising," and any variations thereof, in the description and claims of this application and the above-described drawings, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the invention and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in the present invention can be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Fig. 1 is a schematic structural diagram of a smart card 1 according to an embodiment of the present disclosure, and as shown in fig. 1, the smart card 1 may include a power obtaining module 11 and a time-sequence light-emitting module 12.

And the electric energy acquisition module 11 is used for acquiring electric energy based on radio waves emitted by the smart card induction reader-writer.

In the embodiment of the present application, the control circuit in the smart card 1 includes a function control electronic control that satisfies the basic read/write function, and a timing control circuit that provides control of light emitting timing, duration, flash frequency, color, brightness, and the like. The function control circuit is similar to that of the existing light-emitting card, and is not described in detail, and the time sequence control circuit is an important link in time sequence light-emitting control, and is the core technology of the application.

In a preferred implementation, the inductive antenna in the smart card 1 may include two coils, i.e. a first coil and a second coil, as shown in fig. 2, each coil corresponds to one circuit interface, the first coil provides driving force for the function control circuit, i.e. the IC circuit in the figure, and the second coil provides driving force for the timing control circuit, i.e. the circuit board in the figure. It can be understood that when the smart light emitting card is close to the smart card induction reader, the reader will generate radio wave, which will generate electromagnetic resonance with the induction antenna, and the antenna can generate voltage to supply power for the control circuit. For example, when the inductive voltage of the inductive antenna reaches VPP, the smart card starts to operate and the antenna can utilize the inductive current to power the control circuit.

In an alternative implementation, the inductive antenna in fig. 2 may include only one coil, providing two circuit interfaces for supplying power to the basic read/write function and the sequential light emitting function of the smart card.

And the time sequence light-emitting module 12 is used for driving the light-emitting state of the controlled light source on the smart card to change according to time sequence based on the electric energy.

It should be noted that the timing light-emitting module 12 can receive the power provided by the power obtaining module 11, and drive the timing control circuit in the smart card 1 to output the timing logic control data, and then change the light-emitting state of the controlled light source on the control card in a timing manner based on the data.

It is understood that the sequential light module 12 may include a control center 121, a sequential control circuit 122, an electrical element 123, and a controlled light source 124 as shown in fig. 3. After the timing control circuit 122 obtains power, the control center 121 is activated, and then may output timing logic control data to control the controlled light source 124 in the smart card to emit light. Preferably, the sequential logic control data are binary boolean values, "0" and "1". The controlled light source 124 in the smart card may be the LED in fig. 2, or may be a plurality of LEDs or one LED. It should be noted that the electrical element 123 in the sequential light emitting module 12 is not a main element of the present application, and is not described in detail here.

In a preferred implementation manner, the light emitting timing sequence of the light emitting states of the controlled light sources in the smart card 1 is continuously switched by taking a plurality of clock cycles as a unit, and in each clock cycle, the light emitting state of each controlled light source in the smart card 1 may correspond to a set of boolean values. The control center 121 can control the controlled light source 124 to display the corresponding lighting state according to the logical code consisting of boolean values 0 and/or 1. The lighting state of the controlled light source 124 may include lighting time, lighting color, flashing frequency and lighting brightness of different controlled light sources. The light-emitting state and the boolean value may have the following correspondence: flicker frequency f₁Indicating a Boolean value of "1", a flicker frequency f₂A Boolean value of "0"; color c₁Indicating a Boolean value of "1", a flicker frequency c₂A Boolean value of "0"; color v₁Indicating a Boolean value of "1", a flicker frequency v₂A boolean value of "0".

Further, the peripheral collecting device (e.g., the light sensor or the camera) may identify a corresponding set of boolean values by collecting the light emitting states of the controlled light sources within one clock cycle, where the set of boolean values may represent a special meaning, for example, when the camera shoots that one of the 3 light emitting light sources in the smart card emits light and the other two are not, the set of boolean values of the logic control data corresponding to the set of controlled light sources may be any combination of 1, 0, and 0 (e.g., 001, 100, 010). Since the flashing frequencies of the controlled light sources are not synchronized, the light sources may not be in the on state at the same time, i.e. the lighting states of the controlled light sources in the smart card may be different in different lighting time slots of the lighting period. As shown in fig. 4a to 4d, in the smart card, after six stars on the smart card are simultaneously lit, the smart card flashes at a certain frequency, the stars lit at four different times are different, fig. 4a and 4c both light 6 stars, fig. 4b is not lit, and fig. 4d has one lit.

It should be noted that the light emitting state of each controlled light source in any clock cycle may form a light emitting pattern, and different patterns may represent different practical meanings, for example, the LED in fig. 4a to 4d forms a pattern of a busy day after being lighted.

In one specific implementation of the present application, the timing control circuit 122 includes a clock unit 1221, a logic unit 1222, a serial-parallel conversion unit 1223, and a data decoding unit 1224, as shown in fig. 5. Optionally, the timing control circuit may further include a light source state driving unit, and the driving unit lights the light sources with corresponding lighting time duration, lighting color, flashing frequency and lighting brightness according to the logic transmitted by the logic unit 1222. The control of the on and off of each controlled light source in the card in a specific rule within a fixed clock period can be realized through the units. Fig. 6, 7, 8, and 9 show the connection relationships of the internal elements of the units other than the light source state driving unit 1225 in fig. 5 in an enlarged scale.

In the timing control circuit 122 shown in fig. 5, the clock unit 1221 may provide a timing clock for the logic unit 1222 and the serial-parallel conversion unit 1223, the serial data generated by the logic unit 1222 is output to the serial-parallel conversion unit 1223 and converted into a parallel sequence, and the parallel sequence is input to the data decoding unit 1224 and decoded into a data stream for controlling the light emitting device. It should be noted that the logic unit 1222 may be a pseudo random code generating unit.

It should be noted that the implementation of the clock unit 1221 is limited by the power consumption and size of the smart card, and the clock circuit is designed as a three not gate ring oscillator with RC delay. The oscillation frequency of the traditional odd-number NOT gate ring oscillator is as follows: f is 1/2 × n × tpd. In which n is the number of inverters connected in series, tpd is the transmission delay time, and in practical application, since tpd is between several hours and several hundreds nS, the frequency of the three-inverter ring oscillator with delay can be calculated by the formula f 2.2 × R1 × C1, and the connection relationship of each element in the clock unit is as shown in fig. 5, where R2 is a series protection resistor.

Furthermore, the logic unit 1222, i.e. the pseudo random code generating unit, can be implemented by a multi-stage shift register with an additional feedback terminal, fig. 6 shows a pseudo random code generating circuit implemented by a seven-stage shift register, where the corresponding characteristic polynomial f (x) is 1+ x ^3+ x ^7, and the feedback coefficient is 211, so the sequence is: 010001001.

in one implementation, the serial-to-parallel conversion unit 1223 may be implemented by a shift register, as shown in fig. 7. It can be understood that the pseudo random code output by the pseudo random code generating unit is serial data, and the control data can be output by connecting the pseudo random code output end to the shift register and matching the data decoder. The data decoder is a data decoding unit.

In the embodiment of the present application, the internal circuit of the data decoding unit 1224 is exemplified by 8 light emitting sources, i.e., 8 LEDs, and the three bits of parallel data output by the shift register can control the 8 LEDs by data decoding, as shown in fig. 8. It should be noted that the serial-parallel conversion unit in the timing control circuit and the components in the data decoding unit are related to the number of controlled light sources, that is, in practical application, the specific decoding circuit and serial-parallel circuit can be adjusted according to the number of LEDs in the light-emitting smart card.

In the embodiment of the application, the luminous smart card with the luminous state capable of being changed according to the time sequence is provided, electric energy is obtained by utilizing the antenna to sense electric waves of the smart card reader-writer, and then the smart card is driven to carry out logic control of time sequence luminous by utilizing the time sequence luminous control circuit, so that luminous control of the luminous state of the controlled light source in the smart card based on time sequence change is realized, the original data read-write function of the luminous smart card is ensured, and the data display function of the smart card is enhanced.

The above is only a preferred embodiment of the present invention and is not intended to limit the present invention in any way. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be construed as the protection scope of the present invention.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the embodiments of the present invention do not separately describe various possible combinations.

In addition, various different implementation manners of the embodiments of the present invention can be combined arbitrarily, and as long as it does not violate the idea of the embodiments of the present invention, it should be considered as the disclosure of the embodiments of the present invention.

Claims

1. A time-sequenced light-emitting smart card, comprising: the device comprises an electric energy acquisition module and a time sequence light-emitting module; the electric energy acquisition module is electrically connected with the time sequence light-emitting module;

2. The smart card according to claim 1, wherein the light emission timing of the light emission state is continuously switched in units of several clock cycles.

3. The smart card of claim 1, wherein the lighting status comprises lighting duration, lighting color, flashing frequency, and lighting brightness of different controlled light sources.

4. The smart card of claim 1, wherein the controlled light source is one or more.

5. The smart card of claim 1 wherein the sequential logic control data in the sequential lighting module is a binary boolean value.

6. The smart card of claim 5, wherein the time-sequential light-emitting module is further configured to control the controlled light source to display the corresponding light-emitting duration, light-emitting color, light-emitting frequency, and light-emitting brightness according to a logic code consisting of Boolean values 0 and/or 1.

7. The smart card of claim 6 wherein the lighting state of each controlled light source at any one time corresponds to a set of Boolean values.

8. The smart card of claim 1 wherein the lighting states of the controlled light sources collectively comprise a lighting pattern.

9. The smart card of claim 1 wherein the time sequential light module comprises a control center and a time sequential control circuit.

10. The smart card of claim 9, wherein the timing control circuit comprises a clock unit, a logic unit, a serial-to-parallel conversion unit, and a data decoding unit; the clock unit is respectively and electrically connected with the logic unit and the serial-parallel conversion unit, the logic unit is electrically connected with the serial-parallel conversion unit, and the serial-parallel conversion unit is electrically connected with the data decoding unit.