CN211403469U - Read-write control system of luminous intelligent card - Google Patents
Read-write control system of luminous intelligent card Download PDFInfo
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- CN211403469U CN211403469U CN201921963920.8U CN201921963920U CN211403469U CN 211403469 U CN211403469 U CN 211403469U CN 201921963920 U CN201921963920 U CN 201921963920U CN 211403469 U CN211403469 U CN 211403469U
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Abstract
The application discloses luminous smart card read-write control system, this system includes: the working mode determining module is used for judging the wireless radio frequency signal sent by the intelligent card reader-writer and determining the working mode of the luminous intelligent card, wherein the working mode comprises a reading mode of the luminous time sequence, a writing mode of the luminous time sequence and a luminous mode of the luminous time sequence, which are respectively operated by the intelligent card; and the work control execution module is used for controlling the luminous intelligent card to work according to the work mode based on the time sequence luminous control circuit. Adopt the utility model discloses, can realize reading, writing and the control logic under the three kinds of modes of giving out light, carry out chronogenesis, color and stroboscopic control to the luminous light source of smart card, can increase the reusability of luminous smart card through the luminous logic memory device in the card simultaneously.
Description
Technical Field
The application relates to the technical field of smart cards, in particular to a luminous smart card read-write control system.
Background
The common luminous smart card usually utilizes the induction coil in the card to obtain electric energy, then drives the circuit and the luminous device in the card to emit light, and can realize the basic read-write prompt function. The smart card has a light emitting function different from the information stored in the smart card, and the reading circuit is usually separated, but both of them generate data writing by interacting with the card reader, so that the read and light emitting functions of the smart card conflict with each other. There is no solution to this conflict in the prior art, resulting in that the read-write and time sequence light-emitting control of the smart card cannot be realized simultaneously, and the existing light-emitting smart card can only realize light-emitting in one form, and the reusability is poor.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a luminous smart card read-write control system can realize reading, writing and the control logic under the three kinds of modes of giving out light, carries out chronogenesis, color and stroboscopic control to the luminous light source of smart card, can increase the reusability of luminous smart card through the luminous logic memory device in the card simultaneously.
The embodiment of the application provides a luminous smart card read-write control system, which can comprise:
the working mode determining module is used for judging the wireless radio frequency signal sent by the intelligent card reader-writer and determining the working mode of the luminous intelligent card, wherein the working mode comprises a reading mode of the luminous time sequence, a writing mode of the luminous time sequence and a luminous mode of the luminous time sequence, which are respectively operated by the intelligent card;
and the work control execution module is used for controlling the luminous intelligent card to work according to the work mode based on the time sequence luminous control circuit.
In the embodiment of the application, the working mode of the smart card is determined after the wireless radio frequency signal sent by the smart card reader-writer is processed, and then the working control under different working modes is realized based on different control devices of the time sequence control circuit in the card, so that the logic control of three working modes of reading, writing and lighting of multiple light sources in the smart card is realized, and meanwhile, the reusability of the lighting smart card is increased through the lighting logic storage device in the card.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a sequential light emission control circuit in a smart card according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a read-write control system for a light-emitting smart card according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of an operation mode determination module according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of an operation mode identification unit provided in an embodiment of the present application;
fig. 5 is a schematic structural diagram of a work control execution module according to an embodiment of the present application;
fig. 6 is a schematic diagram illustrating a division of lighting data into multiple frames according to an embodiment of the present application;
FIG. 7 is a circuit diagram of a detection and identification unit according to an embodiment of the present disclosure;
FIG. 8 is a schematic diagram of a clock circuit provided by an embodiment of the present application;
FIG. 9 is a schematic diagram of a controller provided by an embodiment of the present application;
fig. 10 is a schematic diagram of an expansion IO circuit provided in an embodiment of the present application.
Detailed Description
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 a part of the embodiments of the present application, and not all of the 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.
The terms "including" and "having," 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, with the terms "first" and "second" being used for distinguishing designations only and not to represent numerical sizes or orderings. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
It should be noted that, in order to facilitate understanding of the roles of different devices in the light-emitting smart card in the read/write control process of the present application, a timing light-emitting control circuit of the smart card in the present application is introduced, where the circuit at least includes a controller, a timing storage memory unit, an encoder, a load modulation, an antenna circuit, a modem decoder, a light-emitting unit driving circuit, a power supply circuit, and a clock, and the connection relationship or connection structure of different devices in the circuit is shown in fig. 1.
Wherein the antenna circuit: for harvesting radio frequency energy.
A power supply circuit: after the radio frequency energy obtained by the antenna circuit is rectified and stabilized, direct current working voltage is provided for other circuits.
Clock: the frequency of a carrier signal obtained by a radio circuit is divided, and the divided signal is used as a clock signal of the circuit.
A modulation/demodulation circuit: the data transmitted by the read/write equipment, namely the intelligent card reader-writer in the application through wireless signals is modulated and demodulated.
A detection and identification unit: and judging and detecting the instruction sent by the read/write equipment, and analyzing the instruction.
A controller: in the writing mode, writing data transmitted by the reading/writing equipment into the time sequence memory unit; in the light emitting mode, the light emitting unit driving circuit is controlled to drive the light source to emit light according to the time sequence stored in the time sequence storage memory unit; in the read mode, the light-emitting time sequence stored in the time sequence storage memory unit transmits the content data content of the time sequence storage memory unit to the read/write equipment through the encoder and the load modulation unit.
A sequential memory cell: the flash memory has an erasable function, and a user stores a light emitting time sequence.
Light-emitting unit drive circuit: the light source is used for driving the light-emitting smart card to emit light according to the time sequence stored in the time sequence storage memory unit.
An encoder: data to be transmitted to the read/write device is encoded.
Load modulation: and the resistance load modulation is realized, and the ASK modulation based on the carrier amplitude is realized.
In a first embodiment of the present application, a schematic structural diagram of a read-write control system of a light-emitting smart card is provided, as shown in fig. 2, the read-write control system 1 may include an operation mode determining module 11, an operation control executing module 12, a mode verifying module 13, and a light-emitting timing coding module 14. As shown in fig. 3, the operation mode determining module 11 includes a radio frequency signal processing unit 111, an instruction/data decoding unit 112, and an operation mode identifying unit 113. The operation mode identifying unit 113, as shown in fig. 4, includes an instruction/data identifying subunit 1131 and an operation mode determining subunit 1132. The job control execution module 12, as shown in fig. 5, includes a single-frame format encoding unit 121, a multi-frame format encoding unit 122, and a job control execution unit 123.
And the working mode determining module 11 is used for judging the wireless radio frequency signal sent by the smart card reader-writer and determining the working mode of the luminous smart card.
It can be understood that the system needs to perform some basic processing on the radio frequency signal sent by the smart card reader/writer through the timing sequence light-emitting control circuit in the smart card, and then can judge the working mode of the signal sound. The operation mode of the light-emitting smart card may include a read mode, a write mode, and a light-emitting mode. It should be noted that, the above three operation modes are mainly a smart card reader/writer, the reading mode is a mode when the reader/writer reads a card, the writing mode is a card writing mode of the reader/writer, and the light emitting mode is a mode when the reader/writer drives the smart card to emit light.
In an alternative embodiment, the rf signal processing unit 111 is configured to perform rectification and frequency division on a wireless rf signal sent by the smart card reader based on the power circuit and the wireless circuit, and then use the rectified and frequency-divided signal as a clock signal of a timing light-emitting control circuit in the light-emitting smart card.
Specifically, in the energy transmission timing sequence, the power circuit in the timing sequence light-emitting control circuit can provide direct-current working voltage for other circuits after rectifying and stabilizing the radio-frequency energy obtained by the antenna circuit. The clock may divide the frequency of the carrier signal obtained by the wireless circuit, and use the divided signal as a clock signal of the timing light-emission control circuit.
Further, the command/data decoding unit 112 may use a modulation decoder in the sequential light-emitting control circuit to decode the command/data sent by the smart card reader. Further, the operation mode identification unit 113 may identify the operation mode indicated by the modulated and decoded command/data by using the detection identification unit.
In a preferred implementation, the instruction/data identifying subunit 1131 may identify the frequency of the radio frequency information number or the special signal identification code or the scanning area or the signal strength in the modulated and decoded instruction/data by using the detection identifying unit. Further, the operation mode determination subunit 1132 may determine the operation mode according to different recognition results.
For example: when the working mode is identified according to the frequency of the radio frequency signal, the frequency of the carrier wave can be identified by the antenna circuit so as to identify the working mode, and three frequencies are set to exist: f. of1、f2、f3，f1Corresponding read mode, f2Corresponding to write mode, f3Corresponding to the light emission pattern. When the working mode is identified according to the special signal identification code, three types of identification words can be set to exist according to the identification of specific bits of the modem decoder: i is1、I2、I3，I1Corresponding to read mode, I2Corresponding to write mode, I3Corresponding to the light emission pattern. When the operation mode is identified based on the signal strength, the signal strength of the carrier wave can be identified by the antenna circuit, and three strengths are set to exist: df is a1、df2、df3，df1Corresponding to read mode, df2Corresponding to write mode, df3Corresponding to the light emission pattern.
And the work control execution module 12 is used for controlling the light-emitting intelligent card to work according to the work mode based on the time sequence light-emitting control circuit.
It should be noted that, after recognizing the operation mode, the detection recognition unit may send the recognition result to the controller, so that the controller controls the sequential light-emitting control circuit to control the smart card to operate according to the corresponding operation mode, for example, to read, write or emit light.
In specific implementation, the control process of the system for different working modes is as follows:
in the read luminous logic working mode: the system can read time sequence data from a time sequence memory unit in the card by the controller, then carries out coding and decoding modulation on the time sequence data based on the encoder and the load modulation, and finally carries the coded and decoded and modulated time sequence data in an antenna radio frequency signal based on the antenna circuit and sends the coded and decoded and modulated time sequence data to the smart card reader-writer.
In the write light logic mode of operation: the system adopts a controller to store the data transmitted by the modem decoder into a time sequence storage memory unit.
In the light-emitting working mode: the system can adopt the controller to read the time sequence data in the time sequence memory unit, and lead the time sequence data into the light-emitting unit driving circuit to drive the light-emitting light source in the intelligent card to emit light according to the stored time sequence.
In an alternative embodiment, the mode checking module 13 is configured to perform mode checking on different operation modes according to a checking mode matched with the operation modes.
It should be noted that the system may prompt the user whether the smart card normally works in the corresponding mode through mode verification, and the specific verification method may be:
for the read light-emitting logic operation mode, the read logic may be displayed once in the light-emitting mode by using the next time slot.
For the write light logic operation mode, the written data may be verified, and then the written logic may be displayed once in the light mode using the next time slot.
For the light emitting operation mode, the end identifier may be displayed at the end of light emission (the light source goes off all over k times after being fully on, k being a positive integer).
In the embodiment of the invention, the working mode of the intelligent card is determined after the wireless radio frequency signal sent by the intelligent card reader-writer is processed, and the working control under different working modes is realized based on different control devices of the time sequence control circuit in the card, so that the logic control of three working modes of reading, writing and lighting of multiple light sources in the intelligent card is realized, and meanwhile, the reusability of the lighting intelligent card is increased through the lighting logic storage device in the card.
In a second embodiment of the present application, a detailed implementation process of read-write control of a light-emitting smart card is provided:
in this embodiment, the light-emitting timing encoding module 14 may define the light-emitting timing encoding format of the light-emitting smart card according to a single frame or a plurality of frames.
The system may preferably define the lighting timing code format of the lighting smart card in terms of a single frame or multiple frames.
In a specific implementation, when a light-emitting time sequence coding format is defined, the light-emitting time sequence coding format can be divided into two modes aiming at a single frame and a plurality of frames.
For a single frame: the single frame format encoding unit 121 may perform data encoding on the light emitting source in the smart card based on light intensity, color, and flash frequency in a single frame encoding format, for example, at a certain time t, the light emitting manner of the light emitting source is represented by binary data. And the single-frame time is divided into single light source coding aiming at a single smart card light source and multi-light source coding aiming at a plurality of light sources.
1) Single smart card light source
A single light-emitting source s can produce different light intensities, colors and flashes for encoding.
Light intensity: dividing the luminous intensity Nt of the light source s into l grades, wherein l is an exponential multiple of 2, and using Nt1,Nt2,…,NtlRespectively representing the light intensity of each stage, the difference Δ d, i.e. Nt, between each stagei-Nti-1Δ d. Then Nt1,Nt2,…,NtlMay represent 0 to
A consecutive binary number.
Color: light source s can emit m colors, m is an exponential multiple of 2, and C is used1,C2,…,CmRespectively, each light color, the light color distinction scale is large enough. Then C is1,C2,…,CmMay represent 0 to
A consecutive binary number.
Stroboscopic: the light source s can be flashed with n frequencies, n being an exponential multiple of 2, with F1,F2,…,FnRespectively, representing various flicker frequencies. F1,F2,…,FnMay represent 0 to
A consecutive binary number.
The brightness, color and flash of the light emitted by the light source s at a certain time t constitute
A representation of a binary number of bits (the order of combination may be reversed).
For example: where l is 4, m is 2, n is 8, s emits light at a certain time with a light intensity of 3, a color of 1, a strobe of 5,
the three correspond to binary numbers: 11 (light intensity component), 1 (color component), 101 (strobe component);
thus constituting a binary number: 111101.
at this point, data encoding for a single light source is completed.
2) Multi-light source data encoding
The light-emitting smart card is provided with a plurality of light sources which form a light source set S, S ═ S1,s2…, the light source data is sorted or combined according to the distance from the light source to the point p, using the reference point p of the smart card as the starting point.
According to the sequence, the light sources are formed into a sequence [ s ]1,s2,…]Reading the coded data of each light source forms the data content of the whole intelligent card at the time t, and the data content is one
And (3) binary number of bits, wherein | S | is a modulus value of the set S, and the binary number is the encoded data of the corresponding image frame at the time t.
For a plurality of frames: the multi-frame format encoding unit 122 may perform alignment combination between single frames based on a synchronization signal alignment manner, which may include active synchronization and passive synchronization, to obtain data encoding in the multi-frame encoding format.
1) Active synchronization
Active synchronous design of specific light source s on luminous intelligent card0The particular light source is different from the other light sources. Further, synchronization can be performed by the following two methods.
The method comprises the following steps:
the light source s0By using a special colour C0Luminance Nt0Frequency F0One or a combination of:
the second method comprises the following steps:
the light source s0At the established position of the smart card, the position coordinate is (x)o,y0)。
Wherein s is0A different lighting pattern is employed at each cycle (frame) time.
Mode one is a special color C0Luminance Nt0Frequency F0One or a combination of two-bit non-special color C0Luminance Nt0Frequency F0One or a combination thereof. The two modes occur alternately, each time a point occursThe bright time period is T.
2) Passive synchronization
The passive mode is judged by judging the light source data on the smart card.
The judgment conditions are as follows: recording the current lighting states of the light sources, comprising: lightness, color and stroboscopic, duration τ, and τ > T. Therefore, in the time τ, the light source must change the light emitting state, and the time point of detecting the state switching is taken as the synchronous starting point, i.e. the time of starting the frame.
The data of the light emission is divided into a plurality of frames using the above synchronization, as shown in fig. 6.
Further, the operation control execution unit 123 may control the smart card to operate in a corresponding operation mode according to the data encoding.
In a third embodiment of the present application, an implementation structure or an alternative implementation manner of a detection identification unit, a clock, a controller, and an extended IO in a sequential light emitting control circuit is introduced:
the detection and identification unit is shown in fig. 7 and is composed of Lab, logic gates and amplifier connecting wires, wherein Lab is a specificity register unit, data is controlled by a smart card chip, and a user can program the detection and identification unit and preset different control logics. And the serial command sent by the read/write equipment is subjected to serial-parallel conversion through a four-bit D trigger, is sent to a data transmission gate to be compared with a data command preset in the Lab, is judged, detected and analyzed, and then enters the MCU on the smart card for further processing.
The clock is shown in fig. 8, wherein the carrier signal obtained from the LC resonant circuit on the card is divided in frequency and enters the phase-locked loop circuit to obtain a stable clock signal, which is used as the operating clock for detecting the identification unit and the smart card chip.
As shown in fig. 9, the controller is formed by a non-contact CPU card chip, wherein the non-contact CPU card chip may have the following characteristics: the system is compatible with a non-contact card chip, supports a 106Kbps data transmission rate, detects and resets at low voltage and high and low frequency, and has a typical transaction process of less than 350 ms. The safety mechanism of the non-contact CPU card chip can be a reverse power analysis module and a high-low frequency detection reset module, and the working frequency of the chip exceeds the detection range and is automatically reset.
As shown in fig. 10, the expansion IO is limited by the number of cpu IO pins of the smart card, and cannot directly control the states of a plurality of LEDs, so that the cpu IO needs to be expanded, and the expansion IO is a circuit for converting a three-bit binary number into a decimal number, where the three-bit binary number can maximally represent a decimal number of "8", thereby completing the expansion from a three-line IO to an eight-line IO.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware related to instructions of a computer program, and the computer program can be stored in a computer-readable storage medium, and when executed, the computer program can include the processes of the embodiments of the methods described above. The storage medium may be a smart card or the like.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present application and is not to be construed as limiting the scope of the present application, so that the present application is not limited thereto, and all equivalent variations and modifications can be made to the present application.
Claims (10)
1. A light-emitting smart card read-write control system, comprising:
the working mode determining module is used for judging the wireless radio frequency signal sent by the intelligent card reader-writer and determining the working mode of the luminous intelligent card, wherein the working mode comprises a reading mode of the luminous time sequence, a writing mode of the luminous time sequence and a luminous mode of the luminous time sequence, which are respectively operated by the intelligent card;
and the work control execution module is used for controlling the luminous intelligent card to work according to the work mode based on the time sequence luminous control circuit.
2. The system of claim 1, further comprising:
and the mode checking module is used for carrying out mode checking on different working modes according to a checking mode matched with the working modes.
3. The system of claim 1, wherein the sequential lighting control circuit comprises at least a power circuit, a controller, a sequential storage memory unit, an encoder, a load modulation, an antenna circuit, a modem decoder, and a lighting unit driving circuit.
4. The system according to claim 3, wherein in the read mode, the operation control execution module is specifically configured to:
reading the timing data from the timing memory cell in the card using the controller;
performing coding and decoding modulation on the time sequence data based on an encoder and load modulation;
and carrying the time sequence data after the encoding and decoding modulation in an antenna radio frequency signal based on an antenna circuit and sending the time sequence data to the intelligent card reader-writer.
5. The system according to claim 3, wherein in the write mode, the operation control execution module is specifically configured to:
and storing the data transmitted by the modem decoder into the time sequence storage memory unit by adopting a controller.
6. The system according to claim 3, wherein in the lighting mode, the operation control execution module is specifically configured to:
and reading the time sequence data in the time sequence memory unit by adopting a controller, guiding the time sequence data into a light-emitting unit driving circuit, and driving a light-emitting light source in the intelligent card to emit light according to the stored time sequence.
7. The system of claim 1, wherein the operating mode determination module comprises:
the radio frequency signal processing unit is used for rectifying and dividing the frequency of a wireless radio frequency signal sent by the intelligent card reader-writer based on the power circuit and the wireless circuit, and then the wireless radio frequency signal is used as a clock signal of a time sequence light-emitting control circuit in the light-emitting intelligent card;
the command/data decoding unit is used for decoding the command/data sent by the intelligent card reader-writer based on a modulation decoder;
and the working mode identification unit is used for identifying the working mode indicated by the modulated and decoded instruction/data by adopting the detection identification unit.
8. The system of claim 1, further comprising:
and the light-emitting time sequence coding module is used for defining the light-emitting time sequence coding format of the light-emitting intelligent card according to a single frame and multiple frames.
9. The system of claim 8, wherein the work control execution module comprises:
the single-frame format coding unit is used for carrying out data coding on the light-emitting light source in the intelligent card based on light intensity, color and flash frequency under the single-frame coding format;
the multi-frame format coding unit is used for carrying out alignment combination on single frames based on a synchronous signal alignment mode to obtain data codes under a multi-frame coding format;
and the work control execution unit is used for controlling the intelligent card to work in a corresponding work mode according to the data codes.
10. The system according to claim 9, wherein the multi-frame format encoding unit is specifically configured to perform alignment combination on data encoding in a single-frame encoding format by using active synchronization and/or passive synchronization, so as to obtain data encoding in a multi-frame encoding format.
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| CN201921963920.8U CN211403469U (en) | 2019-11-13 | 2019-11-13 | Read-write control system of luminous intelligent card |
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