CN220983898U

CN220983898U - Non-contact type read-write intelligent card system

Info

Publication number: CN220983898U
Application number: CN202323137456.6U
Authority: CN
Inventors: 胡文东
Original assignee: Shenzhen Sunrisim Technology Development Co ltd
Current assignee: Shenzhen Sunrisim Technology Development Co ltd
Priority date: 2023-11-20
Filing date: 2023-11-20
Publication date: 2024-05-17
Anticipated expiration: 2033-11-20

Abstract

The embodiment of the utility model discloses a non-contact read-write intelligent card system, which comprises: the terminal equipment comprises a main end unit arranged inside the terminal equipment and a slave end unit attached to the surface of the terminal equipment, wherein the terminal equipment comprises a communication interface, and the communication interface is connected with the main end unit; the slave end unit comprises a card seat and a card signal processing subunit, the card seat is arranged on the surface of the terminal equipment, the card signal processing subunit is connected with the card seat, the smart card is connected in the card seat, and the card signal processing subunit is connected with the master end unit; and the card signal processing subunit is used for transmitting the signal of the smart card read by the card seat to the main end unit. The system of the embodiment of the utility model can realize that the contact card reading system is not required to be replaced completely to be a non-contact card reading system, the intelligent card system can be converted from contact type read-write to non-contact communication, the opening of the card inserting slot of the contact intelligent card is not required to be reserved, the high-grade dustproof and waterproof appearance design without the opening can be realized completely, the structure is simple, the cost is low, the volume is small, and the operation energy consumption is low.

Description

Non-contact type read-write intelligent card system

Technical Field

The utility model relates to the technical field of smart cards, in particular to a non-contact type read-write smart card system.

Background

Contact type IC cards have been developed to solve security and authentication problems in the field of telecommunications. Subsequently, the contact type IC card is widely used and plays an important role in various fields such as authentication of financial IC cards, telecom SIM cards, traffic cards, etc. With the development of technology, contact type IC cards are gradually evolving into non-contact type IC cards, that is, common near field communication cards.

The communication protocols of the contact type IC card are mainly two types, namely an ISO 7816 protocol and an EMV protocol, wherein the ISO 7816 protocol is a general contact type IC card communication protocol, and the EMV protocol is a payment protocol based on the ISO 7816 standard and is mainly used for interaction between a bank card and a POS terminal. In general, communication between a contact IC card and a terminal is performed through a half duplex serial port, that is, the terminal sends a command to the IC card through the serial port, and then waits for a response of the IC card, and then performs data transmission in the next step. The communication principle of a contactless smart card is based on near field communication technology, in which the card is usually operated in a passive manner, i.e. in which the card is operated by receiving electromagnetic wave energy from a reader. The card reader transmits energy to the card by emitting electromagnetic waves, and after the card receives the energy, the card transmits data back and forth by changing the amplitude and the frequency of the electromagnetic field, and the card reader acquires the data by receiving the fed-back electromagnetic waves.

At present, SIM card insertion ports are required to be designed for products integrating communication modules in the field of the Internet of things, such as industrial control equipment, agricultural equipment, mining equipment and outdoor environment monitoring products, but communication modules for the Internet of things are mostly deployed in severe environments such as high temperature, high humidity, high cold, high dust and the like, contact type smart cards cannot meet the requirements, and for some mobile terminals, the insertion of the contact type smart SIM cards cannot be compatible by adopting high-grade waterproof and dustproof industrial designs without openings in a machine body; the existing solutions mostly carry out wireless on a half-duplex serial port through a Bluetooth protocol or a 2.4G wireless technology, so that an ISO 7816 interface is realized to be changed from a contact type to a non-contact type, but the defects of complex product design, high cost, large volume, high running energy consumption, battery allocation, battery charging maintenance, battery safety, charging life time and the like exist.

Therefore, a new system is necessary to be designed, the fact that the contact type card reading system is not required to be replaced completely to be a non-contact type card reading system is achieved, the intelligent card system can be converted into non-contact type communication from contact type reading and writing, holes of a card inserting groove of a contact type intelligent card are not required to be reserved, the high-grade dustproof and waterproof appearance design without holes can be achieved completely, the structure is simple, the cost is low, the size is small, and the operation energy consumption is low.

Disclosure of utility model

The utility model aims to provide a non-contact read-write intelligent card system.

In order to solve the technical problems, the aim of the utility model is realized by the following technical scheme: there is provided a contactless read-write smart card system comprising: the terminal equipment comprises a main end unit arranged in the terminal equipment and a slave end unit attached to the surface of the terminal equipment, wherein the terminal equipment comprises a communication interface, and the communication interface is connected with the main end unit; the slave end unit comprises a card seat and a card signal processing subunit, the card seat is arranged on the surface of the terminal equipment, the card signal processing subunit is connected with the card seat, a smart card is connected in the card seat, and the card signal processing subunit is connected with the master end unit; and the card signal processing subunit is used for transmitting the signal of the smart card read by the card seat to the main end unit.

The further technical scheme is as follows: the main end unit comprises a contact type safety chip, an NFC card reading chip and a first radio frequency induction antenna, and the contact type safety chip is connected with the communication interface; the contact type security chip is connected with the NFC card reading chip; the NFC card reading chip is connected with the first radio frequency induction antenna; the first radio frequency induction antenna is connected with the card signal processing subunit.

The further technical scheme is as follows: the contact type security chip comprises a chip U3.

The further technical scheme is as follows: the NFC card reading chip comprises a card reading chip U2.

The further technical scheme is as follows: the card signal processing subunit comprises a contact card reading chip, an NFC card chip and a second radio frequency induction antenna, and the contact card reading chip is connected with the card seat; the contact card reading chip is connected with the NFC card chip; the NFC card chip is connected with the second radio frequency induction antenna; the second radio frequency induction antenna is in wireless connection with the first radio frequency induction antenna.

The further technical scheme is as follows: the contact type card reading chip comprises a chip U6.

The further technical scheme is as follows: the NFC card chip comprises an NFC chip U5.

The further technical scheme is as follows: a power management circuit is connected between the communication interface and the slave unit; the power management circuit is used for collecting radio frequency energy of the NFC chip U5 and forming a power supply.

The further technical scheme is as follows: the communication interface is 7816 communication interface.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, through the main end unit arranged in the terminal equipment and the slave end unit attached to the surface of the terminal equipment, the main end unit and the slave end unit penetrate through the shell of the terminal equipment to communicate in an NFC wireless radio frequency communication mode, the shell of the terminal equipment is not required to leave an opening of an inserting port of a contact type IC card, and a card seat is directly arranged on the surface and used as a part of the slave end unit, so that the contact type card reading system is not required to be replaced completely to be a non-contact type card reading system, the smart card system can be converted from contact type read-write to non-contact type communication, the opening of a card inserting groove of the contact type smart card is not required to be reserved, the high-grade dustproof and waterproof appearance design without the opening can be completely realized, the structure is simple, the cost is low, the size is small, and the operation energy consumption is low.

The utility model is further described below with reference to the drawings and specific embodiments.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic block diagram of a contactless read-write smart card system according to an embodiment of the present utility model;

FIG. 2 is a schematic circuit diagram of a power management circuit and a contact type security chip according to an embodiment of the present utility model;

Fig. 3 is a schematic circuit diagram of an NFC card reading chip according to an embodiment of the present utility model;

FIG. 4 is a schematic circuit diagram of a slave unit according to an embodiment of the present utility model;

the figure identifies the description:

10. A terminal device; 20. a contact type security chip; 30. NFC card reading chip; 40. a first radio frequency induction antenna; 50. a second radio frequency induction antenna; 60. an NFC card chip; 70. a contact card reading chip; 80. a clamping seat; 90. a main terminal unit; 100. a slave unit.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be understood that the terms "comprises" and "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It is also to be understood that the terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

Referring to fig. 1, fig. 1 is a schematic block diagram of a contactless read-write smart card system according to an embodiment of the present utility model; the system can be applied to the read-write process of any smart card, realizes the industrial design of converting contact type smart card equipment into a non-contact type read-write smart card system, realizes the non-contact type read-write system without completely replacing the contact type read-write system, can also convert the smart card system into non-contact type communication from contact type read-write, does not need to reserve a card inserting groove of the contact type smart card, can completely realize the non-perforated high-grade dustproof and waterproof appearance design, and has the advantages of simple structure, low cost, small volume and low operation energy consumption.

Referring to fig. 1, the above-mentioned contactless read-write smart card system includes: a master unit 90 installed inside the terminal device 10 and a slave unit 100 attached to the surface of the terminal device 10, the terminal device 10 including a communication interface connected with the master unit 90; the slave unit 100 includes a card holder 80 and a card signal processing subunit, the card holder 80 is disposed on the surface of the terminal device 10, the card signal processing subunit is connected with the card holder 80, the card holder 80 is connected with a smart card, and the card signal processing subunit is connected with the master unit 90; the card signal processing subunit is configured to transmit the signal of the smart card read by the card holder 80 to the main end unit 90.

In this embodiment, the main terminal unit 90 is integrally installed in the terminal device 10, and is physically connected to the interface of the smart card holder 80, that is, the communication interface of the terminal device 10, that is, the ISO7816 communication interface, so that the main terminal unit can be read and written by the terminal device 10 as a role of a contact smart card, and simultaneously acts as an NFC card reader; the slave unit 100 is tightly attached to the surface of the terminal device 10, and is provided with a mounting slot of a contact smart card (IC card/SIM card), namely a card holder 80, and the slave unit 90 and the slave unit 100 perform data interaction in an NFC wireless manner by providing energy by means of NFC radio frequency electromagnetic waves of the master unit 90 to drive the read-write contact smart card.

In an embodiment, referring to fig. 1, the main end unit 90 includes a contact type security chip 20, an NFC card reading chip 30, and a first rf induction antenna 40, where the contact type security chip 20 is connected to a communication interface; the contact type security chip 20 is connected with the NFC card reading chip 30; the NFC card reading chip 30 is connected with the first radio frequency induction antenna 40; the first rf sensing antenna 40 is connected to the card signal processing subunit.

In one embodiment, referring to fig. 2, the contact security chip 20 includes a chip U3; the model number is, but not limited to, CIU98320B.

In an embodiment, referring to fig. 3, the NFC card reading chip 30 includes a card reading chip U2; the model is but not limited to YC5020A.

In one embodiment, the contact type security chip 20 may be replaced by a COS MCU.

The 7816 communication interface of the terminal device 10 in this embodiment is electrically connected to the contact type security chip 20 and provides power, and the COS file system directly runs in the contact type security chip 20, so that reading and writing of the COS file by the terminal device 10 do not need to be forwarded to the actual IC card or SIM card of the user, and the number of communication interactions is greatly reduced.

In an embodiment, referring to fig. 1, the card signal processing subunit includes a contact card reading chip 70, an NFC card chip 60, and a second rf induction antenna 50, where the contact card reading chip 70 is connected to a card holder 80; the contact card reading chip 70 is connected with the NFC card chip 60; the NFC card chip 60 is connected with the second radio frequency induction antenna 50; the second rf induction antenna 50 is wirelessly connected to the first rf induction antenna 40.

In one embodiment, referring to FIG. 4, the contact card reader chip 70 includes a chip U6, which is not limited to CCM3310S-LP.

In an embodiment, referring to fig. 4, the NFC card chip 60 includes an NFC chip U5, which is but not limited to NT3H21111.

In this embodiment, the slave unit 100 is composed of an NFC card chip 60, a second rf sensing antenna 50, a contact card reader chip 70, and a contact card holder 80, and a user's actual contact smart card (IC card/SIM card) is electrically connected and mounted in the card holder 80. The NFC card chip 60 has a radio frequency energy harvesting function, and can provide sufficient electrical energy to drive the operation of the contact card reader chip 70 and the IC card or SIM card while performing NFC communications. The secondary unit 100 can be designed to be very thin and light without requiring additional batteries and considering the charging maintenance and safety problems of the batteries, thereby greatly saving the complexity of hardware and the use maintenance cost. The master unit 90 and the slave unit 100 perform radio frequency communication only when the user card parameters and the terminal authentication are read in an initializing manner, and do not need to be connected all the time, thus greatly improving the operation reliability and saving the energy consumption. Therefore, the defect that the existing half-duplex serial port is subjected to a wireless scheme through the Bluetooth protocol or the 2.4G wireless technology is overcome, the complexity of the component is reduced, the cost is reduced, the volume is light and thin, the dependence on a battery is eliminated, the energy consumption is reduced, and the operation is more stable and reliable.

In one embodiment, a power management circuit is connected between the communication interface and the main unit 90, and VCC of the 7816 communication interface is used as a power supply.

In an embodiment, a power management circuit is also connected between the communication interface and the slave unit 100, and the NFC chip collects the radio frequency electromagnetic wave energy VOUT and outputs the power as a power source, and specifically, the power management circuit is connected between the communication interface and the master unit; the power management circuit is used for collecting radio frequency energy of the NFC chip U5 and forming a power supply.

In an embodiment, referring to fig. 1 to 3, the communication interface is a 7816 communication interface.

In an embodiment, referring to fig. 1 to 3, the communication interface protocol between the device terminal and the contact type security chip 20 is an ISO7816 communication protocol, the communication interface between the contact type security chip 20 and the NFC card reading chip 30 is an IIC communication protocol, the master end unit 90 and the slave end unit 100 are an ISO/IEC 14443A protocol of NFC, the contact type card reading chip 70 and the NFC card chip 60 of the slave end unit 100 are an IIC communication protocol, and the communication interface between the NFC card chip 60 and the smart IC card is an ISO7816 communication protocol.

In the embodiment, the system of the embodiment can be applied to the non-porous design of mobile cellular network networking module integration in the field of the Internet of things, and is compatible with a contact-type user IC/SIM card, and meanwhile, the closed shell is realized, so that the industrial design of complete water and dust prevention is realized; the mobile communication terminal can be applied to mobile communication terminals, can be compatible with a replaceable and contact-type subscriber SIM card, and can realize the industrial structural design without holes and clamping grooves, so that the occupied space in the mobile communication terminals is saved, and the waterproof and moistureproof grades are improved.

In another embodiment, the system of the present embodiment can be applied to wireless upgrade and modification of various contact type IC card systems; on the premise of no need of changing an upper system, the shell is sealed after the card slot is inserted into the main end unit 90, the original IC card is installed in the card seat 80 of the auxiliary end unit 100, wireless transformation can be completed, the cost of hardware upgrading and replacement is greatly reduced, and meanwhile, the physical life of the contact type card reading and writing equipment is prolonged.

According to the non-contact type smart card reading and writing system, through the main end unit 90 installed inside the terminal equipment 10 and the slave end unit 100 attached to the surface of the terminal equipment 10, communication is performed by penetrating through the shell of the terminal equipment 10 by means of the main end unit 90 and the slave end unit 100 in an NFC wireless radio frequency communication mode, a card seat 80 is directly arranged on the surface without leaving an opening of an inserting port of a contact type IC card of a shell of the terminal equipment 10, the card seat is used as a part of the slave end unit 100, the non-contact type smart card reading and writing system can be replaced completely, the smart card system can be converted into the non-contact type communication from the contact type read and writing system, the opening of an inserting card slot of the contact type smart card is not required to be reserved, the appearance design of high-grade dustproof and waterproof without the opening can be completely realized, the structure is simple, the cost is low, the size is small, and the operation energy consumption is low.

While the utility model has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims

1. A contactless read-write smart card system, comprising: the terminal equipment comprises a main end unit arranged in the terminal equipment and a slave end unit attached to the surface of the terminal equipment, wherein the terminal equipment comprises a communication interface, and the communication interface is connected with the main end unit; the slave end unit comprises a card seat and a card signal processing subunit, the card seat is arranged on the surface of the terminal equipment, the card signal processing subunit is connected with the card seat, a smart card is connected in the card seat, and the card signal processing subunit is connected with the master end unit; and the card signal processing subunit is used for transmitting the signal of the smart card read by the card seat to the main end unit.

2. The contactless read-write smart card system of claim 1, wherein the master unit comprises a contact security chip, an NFC read-card chip, and a first rf inductive antenna, the contact security chip being connected to the communication interface; the contact type security chip is connected with the NFC card reading chip; the NFC card reading chip is connected with the first radio frequency induction antenna; the first radio frequency induction antenna is connected with the card signal processing subunit.

3. A contactless read-write smart card system according to claim 2, wherein the contact security chip comprises a chip U3.

4. A contactless read-write smart card system according to claim 2, wherein the NFC read-card chip comprises a read-card chip U2.

5. The contactless read-write smart card system of claim 2, wherein the card signal processing subunit comprises a contact card reading chip, an NFC card chip, and a second rf inductive antenna, the contact card reading chip being connected to the card holder; the contact card reading chip is connected with the NFC card chip; the NFC card chip is connected with the second radio frequency induction antenna; the second radio frequency induction antenna is in wireless connection with the first radio frequency induction antenna.

6. The contactless read-write smart card system of claim 5, wherein the contact read-card chip comprises a chip U6.

7. The contactless read-write smart card system of claim 5, wherein the NFC card chip comprises an NFC chip U5.

8. The contactless read-write smart card system of claim 7, wherein a power management circuit is connected between the communication interface and the slave unit; the power management circuit is used for collecting radio frequency energy of the NFC chip U5 and forming a power supply.

9. The contactless read-write smart card system of claim 1, wherein the communication interface is a 7816 communication interface.