CN111104999A - Smart card with SIM and WIFI wireless storage functions simultaneously - Google Patents
Smart card with SIM and WIFI wireless storage functions simultaneously Download PDFInfo
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- CN111104999A CN111104999A CN201811258460.9A CN201811258460A CN111104999A CN 111104999 A CN111104999 A CN 111104999A CN 201811258460 A CN201811258460 A CN 201811258460A CN 111104999 A CN111104999 A CN 111104999A
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- 230000006870 function Effects 0.000 title claims abstract description 42
- 239000000758 substrate Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000013078 crystal Substances 0.000 claims abstract description 8
- 230000008569 process Effects 0.000 claims abstract description 8
- 238000004891 communication Methods 0.000 claims description 21
- 230000002452 interceptive effect Effects 0.000 claims description 4
- 238000004064 recycling Methods 0.000 claims description 3
- 230000004044 response Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 239000008188 pellet Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
- G06K19/07766—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card comprising at least a second communication arrangement in addition to a first non-contact communication arrangement
- G06K19/07769—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card comprising at least a second communication arrangement in addition to a first non-contact communication arrangement the further communication means being a galvanic interface, e.g. hybrid or mixed smart cards having a contact and a non-contact interface
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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Telephone Function (AREA)
Abstract
The invention provides an intelligent card with SIM and WIFI wireless storage functions, which comprises a telecommunication unit and a WIFI wireless storage unit, wherein the telecommunication unit and the WIFI wireless storage unit are mutually connected and are positioned on a substrate, the telecommunication unit comprises an SIM contact and an SIM unit, the WIFI wireless storage unit comprises a WIFI antenna, a WIFI network protocol processor, a microprocessor MCU, an SD controller, a flash memory chip, a crystal oscillator and a power converter, and the SIM unit in the telecommunication unit and the SD controller of the WIFI wireless storage unit are connected through a signal wire to realize storage access authority control. In the invention, the telecommunication unit and the WIFI wireless storage unit can acquire requests or data from different interfaces, and independently process and respond to the requests and the data, thereby realizing the simultaneous support of the SIM card function and the WIFI wireless memory capacity expansion function.
Description
Technical Field
The invention relates to the technical field of smart cards, in particular to a smart card with SIM and WIFI wireless storage functions.
Background
Mobile storage has now become a popular trend. For example: many high-end mobile smart phones commonly remove the SD expansion slot and only keep the Micro SIM card slot and the NANO SIM card slot. If a user wants a large capacity storage space, the user must replace the model of the mobile device with a higher capacity, the cost of replacing the mobile device is obviously much higher, and the price of the mobile device is greatly different even if the mobile device with the same model and different capacity is compared. For example: many smart phones, purchasing memory space chips with storage capacities varying from 128G to 256G, often require two thousand yuan moneys, which causes a great consumption burden for ordinary consumers.
If the existing SIM card scheme can be utilized and the storage space is expanded in a wireless mode, the limitation that a high-end mobile phone is not expanded in SD can be avoided, a flexible upgrading scheme is provided, the requirements of common consumers are met, and the method is favorable for market promotion and consumer selection.
Disclosure of Invention
In order to solve the problems, the invention provides an intelligent card with SIM and WIFI wireless storage functions at the same time, which comprises a telecommunication unit and a WIFI wireless storage unit, wherein the two groups of working units are independent from each other and have a limited control communication relation, so that the SIM card function and the WIFI wireless memory capacity expansion function can be simultaneously supported.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
an intelligent card with SIM and WIFI wireless storage functions simultaneously comprises a telecommunication unit and a WIFI wireless storage unit, wherein the telecommunication unit and the WIFI wireless storage unit are connected with each other and are positioned on a substrate, the telecommunication unit comprises an SIM contact and an SIM unit, the WIFI wireless storage unit comprises a WIFI antenna, a WIFI network protocol processor, a microprocessor MCU, an SD controller, a flash memory chip, a crystal oscillator and a power converter, and the SIM unit in the telecommunication unit and the SD controller of the WIFI wireless storage unit are connected through a signal wire to realize storage access authority control;
the WIFI antenna receives a communication signal of the wireless local area network, modulates data to be sent and then transmits the data to the wireless local area network;
the crystal oscillator provides an external clock required by the WIFI network protocol processor;
the power converter converts the voltage provided by the SIM contact into the voltage required by the WIFI network processor and the microprocessor MCU;
the microprocessor MCU has an SD _ HOST function and processes an application instruction submitted by the WIFI protocol processor, and converts the application instruction into an SD interface operation through the SD _ HOST function to access the flash memory chip;
the SD controller has the function of processing SD storage, controls the flash memory chip, transmits data to be stored obtained by the external terminal to the flash memory chip, and performs reading, writing, formatting and recycling operations on the data stored in the flash memory chip;
the SIM unit is provided with an SIM interface, the SIM interface is an ISO/IEC7816 interface, the SIM unit is connected with the SIM contact through the SIM interface, supports the telecommunication service user identification function, and communicates with an external terminal through the SIM interface to realize the telecommunication service command processing;
when the SD controller carries out SD storage, the WIFI antenna receives communication signals of a wireless local area network, the WIFI antenna sends the communication signals to the WIFI network processor to process the communication signals, data containing SD storage application instructions are separated out, then the data containing the SD storage application instructions are sent to the microprocessor MCU, the microprocessor MCU converts the data containing the SD storage application instructions into SD storage operation and executes an SD _ HOST function, the SD storage instructions and the data are sent to the SD controller through the SD interface, the SD controller finally completes the SD storage function, and SD storage response is sent to the wireless local area network after being modulated by the WIFI antenna.
Preferably, the WIFI antenna conforms to the IEEE 802.11 b/g/n standard.
Preferably, the interface between the microprocessor MCU and the SD controller conforms to the SD standard protocol specification.
Preferably, the SIM contacts are rectangular, are positioned on the surface of the substrate and are five, six or eight, are arranged in an array mode and all accord with the ISO/IEC7816-2 international standard, and are connected with an external terminal SIM interface to realize telecommunication service interactive communication.
Preferably, the WIFI network protocol processor integrates a WIFI radio frequency baseband and has MAC and TCP/IP protocols.
According to the intelligent card with the SIM and WIFI wireless storage functions, due to the fact that the telecommunication unit and the WIFI wireless storage unit are of the intelligent card structure, the two groups of working units are independent of each other and have a limited control communication relation, the beneficial effect is that when data storage affairs and SIM telecommunication business occur simultaneously, the two groups of working units can acquire requests or data from different interfaces and independently process and respond to the requests and the data, and therefore the SIM card function and the WIFI wireless memory capacity expansion function are simultaneously supported.
The invention is further described with reference to the following figures and detailed description.
Drawings
Fig. 1 is a schematic structural diagram of a smart card with SIM and WIFI wireless storage functions.
Fig. 2 is a schematic structural diagram of a smart card with SIM and WIFI wireless storage functions according to an embodiment of the present invention.
Detailed Description
Fig. 1 is a schematic structural diagram of a smart card having both SIM and WIFI wireless storage functions according to the present invention. The smart card comprises a telecommunication unit 200 and a WIFI wireless storage unit 300, wherein the telecommunication unit 200 and the WIFI wireless storage unit 300 are connected with each other and are positioned on a substrate 100, the telecommunication unit 200 comprises a SIM unit 210 and a SIM contact 220, the WIFI wireless storage unit 300 comprises a WIFI antenna 310, a WIFI network protocol processor 320, a microprocessor MCU330, an SD controller 340, a flash memory chip 350, a crystal oscillator 360 and a power converter 370, and signal lines are connected between the SIM unit 210 in the telecommunication unit 200 and the SD controller 340 of the WIFI wireless storage unit 300 to realize storage access authority control.
The WIFI antenna 310 receives a communication signal of the wireless local area network, modulates data to be sent, and then transmits the modulated data to the wireless local area network.
Crystal 360 provides the external clock required by WIFI network protocol processor 320.
The power converter 370 converts the voltage provided by the SIM contact 220 to the voltage required by the WIFI network processor 320 and the microprocessor MCU 330.
The microprocessor MCU330 has the SD _ HOST function and processes the application instruction submitted by the WIFI protocol processor 320, and the microprocessor MCU330 converts the application instruction into SD interface operation through the SD _ HOST function to realize access to the flash memory chip 350.
The SD controller 340 has a function of processing SD storage, controls the flash memory chip 350, transmits data to be stored obtained by an external terminal to the flash memory chip 350, and performs operations of reading, writing, formatting, and recycling of data stored in the flash memory chip 350.
The SIM unit 210 has an SIM interface, which is an ISO/IEC7816 interface, and the SIM unit 210 is connected to the SIM contact 220 through the SIM interface, supports a telecommunication service user identification function, and performs SIM interface communication with an external terminal, thereby implementing telecommunication service command processing.
The interface between the microprocessor MCU330 and the SD controller 340 conforms to the SD standard protocol specification.
The SIM contacts 220 are rectangular, are positioned on the surface of the substrate 100, are five, six or eight, are arranged in an array mode and all conform to the ISO/IEC7816-2 international standard, and the SIM contacts 220 are connected with an external terminal SIM interface to realize telecommunication service interactive communication.
The WIFI network protocol processor 320 integrates WIFI radio frequency baseband and has MAC and TCP/IP protocols.
As shown in fig. 2, a schematic structural diagram of a smart card with SIM and WIFI wireless storage functions is shown. The intelligent card comprises a telecommunication unit and a WIFI wireless storage unit, the telecommunication unit and the WIFI wireless storage unit are mutually connected and are positioned on the substrate, and the telecommunication unit and the WIFI wireless storage unit are mutually independent and have a limited control communication relation; the telecommunication unit comprises an SIM contact and an SIM unit, the WIFI wireless storage unit comprises a WIFI antenna, a WIFI network protocol processor, a microprocessor MCU, an SD controller, a flash memory chip, a crystal oscillator and a power converter, and the SIM unit in the telecommunication unit is connected with the SD controller of the WIFI wireless storage unit through a signal line to realize storage access authority control.
Eight or six SIM contacts, i.e. C1, C2, C3, C4, C5, C6, C7 and C8, are generally provided on the substrate, i.e. on the surface of the SIM card body, and the definition of the SIM contacts conforms to the international standard ISO/IEC 7816-2. If the profile is an FF2 card, all 8 contacts are packaged on the substrate in a specific implementation; if the appearance is a Micro SIM or NANO card and the SIM telecommunication function does not need C4 and C8 contacts to participate in communication, C4 and C8 contacts are omitted in the specific implementation case of the invention, as shown in FIG. 2, the SIM contacts are rectangular, are positioned on the surface of the substrate, are six and are arranged in an array mode and all accord with the ISO/IEC7816-2 international standard, and the SIM contacts are connected with an external terminal SIM interface to realize telecommunication service interactive communication.
As shown in fig. 2, in the specific embodiment of the present invention, when the SD controller performs SD storage, the WIFI antenna receives a communication signal of the wireless local area network, the WIFI antenna sends the communication signal to the WIFI network processor to process the communication signal, separates data including an SD storage application instruction, and then sends the data including the SD storage application instruction to the microprocessor MCU, the microprocessor MCU converts the data including the SD storage application instruction into an SD storage operation, executes an SD _ HOST function, and sends the SD storage instruction and the data to the SD controller through the SD interface, and finally the SD controller completes the SD storage function, and an SD storage response is modulated by the WIFI antenna and then sent to the wireless local area network.
In order to meet the use requirements of different users, the product of the invention can be selected and matched with different flash memory chips, including the types of the flash memory chips, the storage capacity of the flash memory chips and the like, and a plurality of products with different configurations are combined, such as: SLC 32GB flash memory pellets, MLC 64GB flash memory pellets, etc.
The SD controller in the invention can be replaced by other storage controllers, such as an EMMC controller, the interface between the corresponding SD controller and the MCU is replaced by an EMMC interface, and the MCU realizes the EMMC _ host function.
The present invention is not limited to the embodiments discussed above, and the above description of specific embodiments is intended to describe and illustrate the technical solutions to which the present invention relates. Obvious modifications or alterations based on the teachings of the present invention should also be considered as falling within the scope of the present invention; the foregoing detailed description is provided to disclose the best mode of practicing the invention, and also to enable a person skilled in the art to utilize the invention in various embodiments and with various alternatives for carrying out the invention.
Claims (5)
1. The intelligent card with the SIM and WIFI wireless storage functions is characterized by comprising a telecommunication unit and a WIFI wireless storage unit, wherein the telecommunication unit and the WIFI wireless storage unit are connected with each other and are positioned on a substrate, the telecommunication unit comprises an SIM contact and an SIM unit, the WIFI wireless storage unit comprises a WIFI antenna, a WIFI network protocol processor, a microprocessor MCU, an SD controller, a flash memory chip, a crystal oscillator and a power converter, and the SIM unit in the telecommunication unit and the SD controller of the WIFI wireless storage unit are connected through a signal wire to realize storage access authority control;
the WIFI antenna receives a communication signal of the wireless local area network, modulates data to be sent and then transmits the data to the wireless local area network;
the crystal oscillator provides an external clock required by the WIFI network protocol processor;
the power converter converts the voltage provided by the SIM contact into the voltage required by the WIFI network processor and the microprocessor MCU;
the microprocessor MCU has an SD _ HOST function and processes an application instruction submitted by the WIFI protocol processor, and converts the application instruction into an SD interface operation through the SD _ HOST function to access the flash memory chip;
the SD controller has the function of processing SD storage, controls the flash memory chip, transmits data to be stored obtained by the external terminal to the flash memory chip, and performs reading, writing, formatting and recycling operations on the data stored in the flash memory chip;
the SIM unit is provided with an SIM interface, the SIM interface is an ISO/IEC7816 interface, the SIM unit is connected with the SIM contact through the SIM interface, supports the telecommunication service user identification function, and communicates with an external terminal through the SIM interface to realize the telecommunication service command processing;
when the SD controller carries out SD storage, the WIFI antenna receives communication signals of a wireless local area network, the WIFI antenna sends the communication signals to the WIFI network processor to process the communication signals, data containing SD storage application instructions are separated out, then the data containing the SD storage application instructions are sent to the microprocessor MCU, the microprocessor MCU converts the data containing the SD storage application instructions into SD storage operation and executes an SD _ HOST function, the SD storage instructions and the data are sent to the SD controller through the SD interface, the SD controller finally completes the SD storage function, and SD storage response is sent to the wireless local area network after being modulated by the WIFI antenna.
2. The smart card with simultaneous SIM and WIFI wireless storage functions of claim 1, wherein the WIFI antenna conforms to IEEE 802.11 b/g/n standard.
3. The smart card with simultaneous SIM and WIFI wireless storage functions of claim 1, wherein the interface between the microprocessor MCU and the SD controller conforms to the SD standard protocol specification.
4. The smart card with the SIM and WIFI wireless storage functions as claimed in claim 1, wherein the SIM contacts are rectangular, five or six or eight SIM contacts are arranged on the surface of the substrate in an array manner, all the SIM contacts conform to the ISO/IEC7816-2 international standard, and the SIM contacts are connected with an external terminal SIM interface to realize telecommunication service interactive communication.
5. The smart card with simultaneous SIM and WIFI wireless storage functions of claim 1, wherein the WIFI network protocol processor integrates WIFI radio frequency baseband and has MAC and TCP/IP protocols.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811258460.9A CN111104999A (en) | 2018-10-26 | 2018-10-26 | Smart card with SIM and WIFI wireless storage functions simultaneously |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811258460.9A CN111104999A (en) | 2018-10-26 | 2018-10-26 | Smart card with SIM and WIFI wireless storage functions simultaneously |
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| CN111104999A true CN111104999A (en) | 2020-05-05 |
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| CN201811258460.9A Pending CN111104999A (en) | 2018-10-26 | 2018-10-26 | Smart card with SIM and WIFI wireless storage functions simultaneously |
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Citations (7)
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|---|---|---|---|---|
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| US20110320668A1 (en) * | 2010-06-28 | 2011-12-29 | Huawei Device Co., Ltd. | Wireless internet access device, sd control chip, and method for data communication |
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| CN207503257U (en) * | 2017-06-02 | 2018-06-15 | 紫光同芯微电子有限公司 | Smart card a kind of while that there is SIM and SD |
| CN209980289U (en) * | 2018-10-26 | 2020-01-21 | 紫光同芯微电子有限公司 | Smart card with SIM and WIFI wireless storage functions simultaneously |
-
2018
- 2018-10-26 CN CN201811258460.9A patent/CN111104999A/en active Pending
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| CN101853422A (en) * | 2010-06-11 | 2010-10-06 | 北京华大智宝电子系统有限公司 | Dual-interface SD card |
| US20110320668A1 (en) * | 2010-06-28 | 2011-12-29 | Huawei Device Co., Ltd. | Wireless internet access device, sd control chip, and method for data communication |
| US20130084918A1 (en) * | 2011-10-03 | 2013-04-04 | Broadcom Corporation | Wireless communication device with sim-to-sd adaptor |
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Non-Patent Citations (1)
| Title |
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Effective date of registration: 20220507 Address after: No. 1511-07, 15 / F, block D, Tsinghua Tongfang science and technology building, No. 1 courtyard, Wangzhuang Road, Haidian District, Beijing 100083 Applicant after: Ziguang Guoxin Microelectronics Co.,Ltd. Beijing Branch Address before: 100083 18 floor, West Tower, block D, Tongfang science and Technology Plaza, 1 Wang Zhuang Road, Wudaokou, Haidian District, Beijing. Applicant before: ZIGUANG TONGXIN MICROELECTRONICS CO.,LTD. |