CN214795932U - Information reading system of intelligent card and identity card - Google Patents
Information reading system of intelligent card and identity card Download PDFInfo
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- CN214795932U CN214795932U CN202120689263.3U CN202120689263U CN214795932U CN 214795932 U CN214795932 U CN 214795932U CN 202120689263 U CN202120689263 U CN 202120689263U CN 214795932 U CN214795932 U CN 214795932U
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Abstract
The embodiment of the utility model discloses information reading system of smart card and ID card, include: the identification module is used for identifying the type of the card, and the type comprises a smart card and an identity card; the switching module is connected with the identification module and used for switching the information interaction path of the card according to the type of the card identified by the identification module; the decryption module is connected with the switching module and used for acquiring the information of the identity card from the identification module and decrypting the information of the identity card; and the main control module is connected with the switching module and the decryption module and used for sending an instruction for acquiring the information of the card to the identification module and the decryption module. The intelligent card information and the identity card information acquired by the identification module are switched to the main control module and the decryption module respectively for decrypting the information by the switching module in two paths, so that the reading speed of the system is improved, the reading error rate is reduced, and the scheme is simple and easy to implement.
Description
Technical Field
The utility model relates to a smart card and ID card identification technical field especially relate to an information reading system of smart card and ID card.
Background
In scenes such as public transport, subway, etc., there is the demand of reading smart cards such as ordinary bus card, subway card and resident identification card, among the prior art, when adopting same identification module to read smart card and identification card, host system need carry out the interaction of many times card interior information with identification module, because interactive information all can verify successfully every time, if wherein a certain mistake all can lead to verifying failure, and simultaneously, because of the main control unit among the host system is time sharing control, when data transmission to main control unit, main control unit has the delay, lead to the reduction of deciphering efficiency, it is slower to read simultaneously, the scheme realizes more complicatedly, it is higher to read the error rate.
SUMMERY OF THE UTILITY MODEL
Therefore, in order to solve the above problems, it is necessary to provide an information reading system for a smart card and an identification card, which has a fast reading speed, is not prone to error, and is simple to implement. An information reading system of a smart card and an identity card,
the method comprises the following steps:
the identification module is used for identifying the type of the card, and the type comprises a smart card and an identity card;
the switching module is connected with the identification module and used for switching the information interaction path of the card according to the type of the card identified by the identification module;
the decryption module is connected with the switching module and used for acquiring the information of the identity card from the identification module and decrypting the information of the identity card;
and the main control module is connected with the switching module and the decryption module and used for sending an instruction for acquiring the information of the card to the identification module and the decryption module.
In one embodiment, the switching module includes:
the voltage signal input into the first control chip U26 is filtered by a first filtering unit and the first control chip U26;
one end of the first filtering unit is grounded, and the other end of the first filtering unit is connected with a power supply input end of the first control chip U26.
In one embodiment, the first filtering unit includes: a first capacitor C241 and a second capacitor C242;
one end of the first capacitor C241 is connected to a power input end of the first control chip U26, and the other end is connected to a ground end;
one end of the second capacitor C242 is connected to the power input end of the first control chip U26, and the other end is connected to the ground.
In one embodiment, the decryption module comprises: the identity card module is used for decrypting the identity card and the second control chip is used for realizing information interaction between the identity card module and the identification module;
one end of the second control chip is connected with the identification module, the other end of the second control chip is connected with one end of the identity card module, and the other end of the identity card module is connected with the main control module.
In an embodiment, the identification module includes an antenna, the main control module and the decryption module send an instruction for acquiring the card information to the identification module, and the antenna transmits the card information identified by the identification module to the main control module and the decryption module.
In one embodiment, the identification module is a radio frequency chip U5 integrated with an antenna.
In an embodiment, the main control module is a third control chip, the third control chip includes a second filtering unit for filtering a system voltage signal input to the third control chip, and the second filtering unit includes: a third capacitor C1 and a fourth capacitor C2;
one end of the third capacitor C1 is connected to the system power input end of the third control chip, and the other end is connected to the ground end;
one end of the fourth capacitor C2 is connected to the system power input end of the third control chip, and the other end is connected to the ground end.
In one embodiment, the identification module further comprises: the third filtering unit, the fourth filtering unit and the fifth filtering unit are used for filtering the VDD voltage signal, the PVDD voltage signal and the TVDD voltage signal which are input to the radio frequency chip U5 respectively;
the third filtering unit includes: a fifth capacitor C43, a sixth capacitor C44, and a seventh capacitor C45;
two ends of the fifth capacitor C43, the sixth capacitor C44 and the seventh capacitor C45 are respectively connected with the VDD terminal and the ground terminal of the rf chip U5;
the fourth filtering unit includes: an eighth capacitor C46, a ninth capacitor C47, and a tenth capacitor C48;
two ends of the eighth capacitor C46, the ninth capacitor C47 and the tenth capacitor C48 are respectively connected to the PVDD end and the ground end of the rf chip U5;
the fifth filtering unit includes: an eleventh capacitor C52, a twelfth capacitor C53, and a thirteenth capacitor C54;
two ends of the eleventh capacitor C52, the twelfth capacitor C53 and the thirteenth capacitor C54 are respectively connected to the TVDD end and the ground end of the rf chip U5.
In one embodiment, the identification module further comprises:
the sixth filtering unit and the seventh filtering unit are used for respectively filtering the DVDD voltage signal and the AVDD voltage signal which are input into the radio frequency chip U5;
the sixth filtering unit includes: a fourteenth capacitance C69 and a fifteenth capacitance C70;
two ends of the fourteenth capacitor C69 and the fifteenth capacitor C70 are respectively connected with the DVDD end and the ground end of the rf chip U5;
the seventh filtering unit includes: a sixteenth capacitor C71 and a seventeenth capacitor C72;
two ends of the sixteenth capacitor C71 and the seventeenth capacitor C72 are respectively connected to the AVDD end and the ground end of the rf chip U5.
In one embodiment, the identification module further comprises:
the crystal oscillator oscillation starting circuit is used for providing a required working frequency for the radio frequency chip U5;
the crystal oscillator oscillation starting circuit comprises: the circuit comprises a crystal oscillator element Y2, a first resistor R47, a second resistor R48, a third resistor R50, an eighteenth capacitor C67 and a nineteenth capacitor C74;
two ends of the crystal oscillator element Y2 are respectively connected with the oscillation input end XTAL1 and the oscillation output end XTAL2 of the radio frequency chip U5, and the shell of the crystal oscillator element Y2 is connected with a ground terminal;
one end of the first resistor R47 is connected to the oscillation input terminal XTAL1, and the other end is connected to one end of the crystal oscillator element Y2;
one end of the third resistor R50 is connected to the oscillation output terminal XTAL2, and the other end is connected to the other end of the crystal oscillator element Y2;
two ends of the second resistor R48 are respectively connected with the oscillation input end XTAL1 and the oscillation output end XTAL 1.
Implement the embodiment of the utility model provides a, will have following beneficial effect:
the intelligent card information and the identity card information acquired by the identification module are switched to the main control module and the decryption module respectively for decrypting the information by the switching module in two paths, so that the reading speed of the system is improved, the reading error rate is reduced, and the scheme is simple and easy to implement.
Drawings
In order to more clearly illustrate the embodiments of the present invention 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 invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Wherein:
fig. 1 is a schematic diagram illustrating an overall structure of an information reading system of a smart card and an identity card in one embodiment.
Fig. 2 is a circuit diagram of a switching module of the information reading system of the smart card and the identification card in one embodiment.
Fig. 3 is a circuit diagram of an identification card module of the information reading system of the smart card and the identification card in one embodiment.
FIG. 4 is a circuit diagram of a second control chip of the information reading system of the smart card and the identification card in one embodiment.
Fig. 5 is a circuit diagram of a main control module of an information reading system of a smart card and an identification card according to an embodiment.
FIG. 6 is a circuit diagram of an identification module of an information reading system for a smart card and an identification card according to an embodiment.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The utility model provides an information reading system of smart card and ID card, include:
as shown in fig. 1, an identification module 100 for identifying types of cards, the types including smart cards and identification cards;
a switching module 200, connected to the identification module 100, for switching an information interaction path of the card according to the card type identified by the identification module 100;
a decryption module 300, connected to the switching module 200, configured to obtain the information of the identity card from the identification module 100 and decrypt the information of the identity card;
a main control module 400, connected to the switching module 200 and the decryption module 300, for sending an instruction for acquiring the card information to the identification module 100 and the decryption module 300.
In this embodiment, the main control module 400 sends a card reading instruction to the identification module 100, the identification module 100 sends the identified card type to the main control module 400, and when the main control module 400 receives that the card type is an intelligent card (e.g., a bus card or other consumer card), the main control module 400 sends an instruction for reading information of the intelligent card to the identification module 100 again, and the functions of money deduction and the like are realized through multiple times of information interaction of the intelligent card of the main control module 400 and the identification module 100 (this part is the prior art, and is not described in detail herein); when the type that host system 400 received the card is the ID card, host system 400 break off with switching module 200's connection, decryption module 300 sends the instruction of reading ID card information to identification module 100, identification module 100 sends the ID card information of discernment to decryption module 300 through switching module 200, decryption module 300 decrypts the ID card information, specifically, decryption module 300 is mainly responsible for decoding the encrypted ID information in the ID card to can be accurate send do further demonstration or operation for the business terminal, decryption module 300 theory of operation explains: the card reader of the decryption module 300 circularly sends a card searching instruction, when the identity card enters the readable range of the card reader, the identity card detects the card searching instruction sent by the card reader, a card searching response instruction is returned to the card reader, and after the card reader receives the card searching response instruction, the identity card is determined to be detected, and the card searching is successful. After the card reader successfully searches the card, the user instructs the card reader to start reading the identity card, the card reader starts to interact with the identity card, information stored in the resident identity card is read, the ID card security control module 300 authorized by the public security department is matched, after security authentication is performed on the ID card and a special chip in the identity card in an RFID (radio frequency identification) mode, the read resident identity card is decrypted, identity card information in a plaintext is obtained (the decryption process is the prior art, and details are not repeated in the application), and the decrypted identity card information, such as a picture and a fingerprint of the identity card, is sent to the main control module 400 to be displayed or recorded.
The intelligent card information and the identity card information acquired by the identification module are switched to the main control module and the decryption module respectively for decrypting the information by the switching module in two paths, so that the reading speed of the system is improved, the reading error rate is reduced, and the scheme is simple and easy to implement.
In one embodiment, as shown in fig. 2, the switching module 200 includes:
a first control chip U26 and a first filtering unit 201 filtering a voltage signal inputted into the first control chip U26; in this embodiment, the first control chip U26 realizes switching the identification mode when the card type is an identification card.
One end of the first filtering unit is grounded, and the other end of the first filtering unit is connected with a power supply input end of the first control chip U26.
The first filtering unit includes: a first capacitor C241 and a second capacitor C242;
one end of the first capacitor C241 is connected to a power input end of the first control chip U26, and the other end is connected to a ground end;
one end of the second capacitor C242 is connected to the power input end of the first control chip U26, and the other end is connected to the ground.
The first capacitor C241 and the second capacitor C242 carry out effective filtering on the power input to the first control chip U26, so that the stable operation effect of the first control chip U26 is ensured, and the anti-jamming capability and the working efficiency of the control chip U26 are improved.
In one embodiment, the decryption module 300 comprises: as shown in fig. 3, an identity card module 301 for decrypting the identity card and a second control chip 302 for implementing information interaction between the identity card module 301 and the identification module 100, as shown in fig. 4;
one end of the second control chip 302 is connected to the identification module 100, the other end is connected to one end of the identity card module 301, and the other end of the identity card module 301 is connected to the main control module.
In an embodiment, as shown in fig. 6, the identification module 100 includes an antenna, the main control module 400 and the decryption module 300 send an instruction to the identification module 100 to obtain the card information, and the antenna transmits the card information identified by the identification module 100 to the main control module 400 and the decryption module 300.
In this embodiment, when the type of the card is a smart card, the main control module 400 sends an instruction for identifying information of the smart card to the identification module 100, the identification module 100 sends the information of the smart card to the main control module 400 through an antenna, and the main control module 400 and the identification module 100 perform repeated information interaction of the smart card through the antenna; when the type of card is the ID card, at this moment, host system 400 sends the instruction of the information of discernment ID card to identification module 100, identification module 100 sends the information transmission of ID card to switching module 200 through the antenna, switching module 200 sends the information of ID card for second control chip 302, second control chip 302 sends the information of ID card for ID card module 301 again, ID card module 301 goes on through the mutual information of ID card that antenna and identification module 100 relapse, until mutual completion after, ID card module 301 decrypts the information of ID card, and send the information of the ID card after decrypting to host system 400 and show or record. The antenna improves the information transmission efficiency of the identification module 100, the main control module 400 and the identity card module 301.
In one embodiment, as shown in fig. 6, the identification module is a radio frequency chip U5 integrated with an antenna.
In an embodiment, as shown in fig. 5, the main control module 400 is a third control chip, the third control chip includes a second filtering unit 401 for filtering a system voltage signal input to the third control chip, and the second filtering unit 401 includes: a third capacitor C1 and a fourth capacitor C2;
one end of the third capacitor C1 is connected to the system power input end of the third control chip, and the other end is connected to the ground end; one end of the fourth capacitor C2 is connected to the system power input end of the third control chip, and the other end is connected to the ground end.
In this embodiment, the second filtering unit 401 filters the voltage signal input to the third control chip, so that the power supply inside the second filtering unit can operate stably, and the anti-interference capability is improved.
In one embodiment, as shown in fig. 6, the identification module 100 further includes: a third filtering unit 101, a fourth filtering unit 102 and a fifth filtering unit 103 for filtering the VDD voltage signal, the PVDD voltage signal and the TVDD voltage signal inputted to the rf chip U5, respectively;
the third filtering unit 101 includes: a fifth capacitor C43, a sixth capacitor C44, and a seventh capacitor C45;
two ends of the fifth capacitor C43, the sixth capacitor C44 and the seventh capacitor C45 are respectively connected with the VDD terminal and the ground terminal of the rf chip U5;
the fourth filtering unit 102 includes: an eighth capacitor C46, a ninth capacitor C47, and a tenth capacitor C48;
two ends of the eighth capacitor C46, the ninth capacitor C47 and the tenth capacitor C48 are respectively connected to the PVDD end and the ground end of the rf chip U5;
the fifth filtering unit 103 includes: an eleventh capacitor C52, a twelfth capacitor C53, and a thirteenth capacitor C54;
two ends of the eleventh capacitor C52, the twelfth capacitor C53 and the thirteenth capacitor C54 are respectively connected to the TVDD end and the ground end of the rf chip U5; in this embodiment, the third filtering unit 101, the fourth filtering unit 102 and the fifth filtering unit 103 filter the VDD voltage signal, the PVDD voltage signal and the TVDD voltage signal input to the rf chip U5, so that the power supply therein can operate stably, and the anti-interference capability is improved.
In one embodiment, the identification module 100 further comprises:
a sixth filtering unit 104 and a seventh filtering unit 105 for filtering the DVDD voltage signal and the AVDD voltage signal inputted to the rf chip U5, respectively;
the sixth filtering unit 104 includes: a fourteenth capacitance C69 and a fifteenth capacitance C70;
two ends of the fourteenth capacitor C69 and the fifteenth capacitor C70 are respectively connected with the DVDD end and the ground end of the rf chip U5;
the seventh filtering unit 105 includes: a sixteenth capacitor C71 and a seventeenth capacitor C72;
two ends of the sixteenth capacitor C71 and the seventeenth capacitor C72 are respectively connected to the AVDD end and the ground end of the rf chip U5.
In this embodiment, the sixth filtering unit 104 and the seventh filtering unit 105 both filter the DVDD voltage signal and the AVDD voltage signal input to the rf chip U5, so that the power supply therein can operate stably, and the anti-interference capability is improved.
In one embodiment, as shown in fig. 6, the identification module 100 further includes:
the crystal oscillator starting circuit 106 is used for providing the required working frequency for the radio frequency chip U5;
the crystal oscillation starting circuit 106 includes: the circuit comprises a crystal oscillator element Y2, a first resistor R47, a second resistor R48, a third resistor R50, an eighteenth capacitor C67 and a nineteenth capacitor C74;
two ends of the crystal oscillator element Y2 are respectively connected with the oscillation input end XTAL1 and the oscillation output end XTAL2 of the radio frequency chip U5, and the shell of the crystal oscillator element Y2 is connected with a ground terminal;
one end of the first resistor R47 is connected to the oscillation input terminal XTAL1, and the other end is connected to one end of the crystal oscillator element Y2;
one end of the third resistor R50 is connected to the oscillation output terminal XTAL2, and the other end is connected to the other end of the crystal oscillator element Y2;
two ends of the second resistor R48 are respectively connected to the oscillation input end XTAL1 and the oscillation output end TAL 1.
In this embodiment, the crystal oscillation starting circuit provides a required operating frequency for the rf chip U5, so that the rf chip U5 can stably and continuously operate.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.
Claims (10)
1. An information reading system of a smart card and an identity card, comprising:
the identification module is used for identifying the type of the card, and the type comprises a smart card and an identity card;
the switching module is connected with the identification module and used for switching the information interaction path of the card according to the type of the card identified by the identification module;
the decryption module is connected with the switching module and used for acquiring the information of the identity card from the identification module and decrypting the information of the identity card;
and the main control module is connected with the switching module and the decryption module and used for sending an instruction for acquiring the information of the card to the identification module and the decryption module.
2. The system for reading information on a smart card and an identity card according to claim 1, wherein the switching module comprises:
the voltage signal input into the first control chip U26 is filtered by a first filtering unit and the first control chip U26;
one end of the first filtering unit is grounded, and the other end of the first filtering unit is connected with a power supply input end of the first control chip U26.
3. The system for reading information on a smart card and an identity card according to claim 2,
the first filtering unit includes: a first capacitor C241 and a second capacitor C242;
one end of the first capacitor C241 is connected to a power input end of the first control chip U26, and the other end is connected to a ground end;
one end of the second capacitor C242 is connected to the power input end of the first control chip U26, and the other end is connected to the ground.
4. The system for reading information on a smart card and an identity card according to claim 1,
the decryption module includes: the identity card module is used for decrypting the identity card and the second control chip is used for realizing information interaction between the identity card module and the identification module;
one end of the second control chip is connected with the identification module, the other end of the second control chip is connected with one end of the identity card module, and the other end of the identity card module is connected with the main control module.
5. The system for reading information on a smart card and an identity card according to claim 1,
the identification module comprises an antenna, the main control module and the decryption module send instructions for acquiring the information of the card to the identification module, and the antenna transmits the information of the card identified by the identification module to the main control module and the decryption module.
6. The system for reading information on a smart card and an identity card according to claim 1,
the identification module is a radio frequency chip U5 integrated with an antenna.
7. The system of claim 1, wherein the main control module is a third control chip, the third control chip comprises a second filtering unit for filtering a system voltage signal input to the third control chip, and the second filtering unit comprises: a third capacitor C1 and a fourth capacitor C2;
one end of the third capacitor C1 is connected to the system power input end of the third control chip, and the other end is connected to the ground end;
one end of the fourth capacitor C2 is connected to the system power input end of the third control chip, and the other end is connected to the ground end.
8. The system for reading information on a smart card and an identification card according to claim 6, wherein the identification module further comprises: the third filtering unit, the fourth filtering unit and the fifth filtering unit are used for filtering the VDD voltage signal, the PVDD voltage signal and the TVDD voltage signal which are input to the radio frequency chip U5 respectively;
the third filtering unit includes: a fifth capacitor C43, a sixth capacitor C44, and a seventh capacitor C45;
two ends of the fifth capacitor C43, the sixth capacitor C44 and the seventh capacitor C45 are respectively connected with the VDD terminal and the ground terminal of the rf chip U5;
the fourth filtering unit includes: an eighth capacitor C46, a ninth capacitor C47, and a tenth capacitor C48;
two ends of the eighth capacitor C46, the ninth capacitor C47 and the tenth capacitor C48 are respectively connected to the PVDD end and the ground end of the rf chip U5;
the fifth filtering unit includes: an eleventh capacitor C52, a twelfth capacitor C53, and a thirteenth capacitor C54;
two ends of the eleventh capacitor C52, the twelfth capacitor C53 and the thirteenth capacitor C54 are respectively connected to the TVDD end and the ground end of the rf chip U5.
9. The system for reading information on a smart card and an identification card according to claim 6, wherein the identification module further comprises:
the sixth filtering unit and the seventh filtering unit are used for respectively filtering the DVDD voltage signal and the AVDD voltage signal which are input into the radio frequency chip U5;
the sixth filtering unit includes: a fourteenth capacitance C69 and a fifteenth capacitance C70;
two ends of the fourteenth capacitor C69 and the fifteenth capacitor C70 are respectively connected with the DVDD end and the ground end of the rf chip U5;
the seventh filtering unit includes: a sixteenth capacitor C71 and a seventeenth capacitor C72;
two ends of the sixteenth capacitor C71 and the seventeenth capacitor C72 are respectively connected to the AVDD end and the ground end of the rf chip U5.
10. The system for reading information on a smart card and an identity card according to claim 6,
the identification module further comprises:
the crystal oscillator oscillation starting circuit is used for providing a required working frequency for the radio frequency chip U5;
the crystal oscillator oscillation starting circuit comprises: the circuit comprises a crystal oscillator element Y2, a first resistor R47, a second resistor R48, a third resistor R50, an eighteenth capacitor C67 and a nineteenth capacitor C74;
two ends of the crystal oscillator element Y2 are respectively connected with the oscillation input end XTAL1 and the oscillation output end XTAL2 of the radio frequency chip U5, and the shell of the crystal oscillator element Y2 is connected with a ground terminal;
one end of the first resistor R47 is connected to the oscillation input terminal XTAL1, and the other end is connected to one end of the crystal oscillator element Y2;
one end of the third resistor R50 is connected to the oscillation output terminal XTAL2, and the other end is connected to the other end of the crystal oscillator element Y2;
two ends of the second resistor R48 are respectively connected with the oscillation input end XTAL1 and the oscillation output end XTAL 1.
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| CN202120689263.3U CN214795932U (en) | 2021-04-02 | 2021-04-02 | Information reading system of intelligent card and identity card |
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| CN113283252A (en) * | 2021-04-02 | 2021-08-20 | 深圳市雄帝科技股份有限公司 | Information reading system and method for intelligent card and identity card |
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| CN113283252A (en) * | 2021-04-02 | 2021-08-20 | 深圳市雄帝科技股份有限公司 | Information reading system and method for intelligent card and identity card |
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