CN108683429B

CN108683429B - Mobile terminal supporting PSAM card

Info

Publication number: CN108683429B
Application number: CN201810224162.1A
Authority: CN
Inventors: 王坤; 曹通
Original assignee: Shanghai Liangzhi Communication Technology Co ltd
Current assignee: Shanghai Liangzhi Communication Technology Co ltd
Priority date: 2018-03-19
Filing date: 2018-03-19
Publication date: 2020-11-13
Anticipated expiration: 2038-03-19
Also published as: CN108683429A

Abstract

The embodiment of the invention relates to the technical field of electronic equipment, and discloses a mobile terminal supporting a PSAM card. In the present invention, a mobile terminal includes: a processing unit and a card holder; the SIM card signal pin of the processing unit is correspondingly connected with the card seat; the card seat is used for mounting a PSAM card; the processing unit is used for packaging the information needing to be sent to the PSAM card into a format meeting the requirements of the PSAM card and then transmitting the information to the PSAM card through the SIM card signal pin. The embodiment of the invention realizes the support of the PSAM card by combining and utilizing the existing hardware resources in the terminal to replace the PSAM special chip, thereby not only reducing the cost, but also saving the space of the ornament in the terminal.

Description

Mobile terminal supporting PSAM card

Technical Field

The embodiment of the invention relates to the technical field of electronic equipment, in particular to a mobile terminal supporting a PSAM card.

Background

The PSAM (PSAM for short) card is widely applied to security authentication, encryption, decryption and the like in the scenes of public transportation, railways, finance, mobile payment, campus one-card, enterprise one-card and the like. The PSAM card has certain universality, and the PSAM card subjected to personalization processing can be used on different machines, for example, the PSAM card can also be used on terminal equipment such as a refueling terminal, a merchant POS (point of sale), a network point terminal, a direct connection terminal and the like, so that the safety control and management of the machines are realized. As a hardware encryption technique, the security of the PSAM card is very high. With the increasing strength of the functions of the smart phone, the smart phone with the function of the PSAM card comes into operation.

The inventor finds that at least the following problems exist in the prior art: in order to enable the smart phone to support the PSAM card, the prior art needs to add a chip dedicated to the PSAM card to the smart phone, and the chip dedicated to the PSAM card is mainly used for encapsulating information required by the PSAM card into a format required by the smart phone. This kind of implementation not only can increase smart mobile phone's overall cost, but also special chip can occupy the cell-phone circuit board goods of furniture for display rather than for use space increasingly nervous.

Disclosure of Invention

The invention aims to provide a mobile terminal supporting a PSAM card, which realizes the support of the PSAM card by combining and utilizing the existing hardware resources in the terminal to replace a PSAM special chip, thereby not only reducing the cost, but also saving the space of a decoration in the terminal.

In order to solve the above technical problem, an embodiment of the present invention provides a mobile terminal supporting a PSAM card, including: a processing unit and a card holder; the SIM card signal pin of the processing unit is correspondingly connected with the card seat; the card seat is used for mounting a PSAM card; the processing unit is used for packaging information needing to be sent to the PSAM card into a format meeting the requirements of the PSAM card and then transmitting the information to the PSAM card through the SIM card signal pin.

Compared with the prior art, the embodiment of the invention utilizes the characteristic that the PSAM card and the SIM card signal pin have the same function definition to connect the card seat with the SIM card signal pin of the processing unit and utilizes the processing unit to package the information required to be sent to the PSAM card into a format meeting the requirements of the PSAM card, thereby ensuring that the mobile terminal can also support the functions of the PSAM card under the condition of not needing a special chip for the PSAM. Therefore, the embodiment can save one chip special for the PSAM, thereby not only being beneficial to reducing the cost, but also saving the area of the ornament on the circuit board of the mobile terminal and having stronger practical value.

In addition, the processing unit includes: a main application processing subunit and a communication processing subunit; the main application processing subunit is connected with the communication processing subunit, and an SIM card signal pin of the communication processing subunit is correspondingly connected with the card seat.

In addition, the PSAM card-enabled mobile terminal according to claim 2, wherein the main application processing sub-unit is configured to encapsulate information to be sent to the PSAM card into a format meeting requirements of the PSAM card, and then transmit the information to the PSAM card through a SIM card signal pin of the communication processing sub-unit. In this way, the powerful processing power of the main application processing subunit can be used instead of the PSAM dedicated chip.

In addition, the communication processing subunit is configured to encapsulate information that needs to be sent to the PSAM card into a format that meets the requirements of the PSAM card, and transmit the information to the PSAM card through the SIM card signal pin. So that the communication processing subunit can be used instead of the PSAM dedicated chip.

In addition, the main application processing sub-unit and the communication processing sub-unit communicate through a shared storage unit to transmit information in a format that meets the requirements of the PSAM card to the PSAM card. Because the main application processing sub-unit and the communication processing sub-unit communicate through the shared storage unit, the communication time consumption is extremely short, and the processing speed of the PSAM card information is higher.

In addition, still include: a level conversion module; the level conversion module is electrically connected with the processing unit and the card seat; the level conversion module is used for providing working voltage matched with the PSAM card in the card seat under the control of the processing unit.

In addition, the operating voltage includes: at least two of 1.8V, 3V and 5V. Therefore, the mobile terminal can be compatible with PSAM cards with different working voltages.

In addition, the processing unit controls the working voltage provided by the level conversion module through GPIO.

In addition, the card socket is a SIM card socket or a PSAM card socket.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.

Fig. 1 is a block diagram of a mobile terminal supporting a PSAM card according to a first embodiment of the present invention;

FIG. 2 is a schematic diagram of a SIM card signal pin of a processing unit of a mobile terminal supporting a PSAM card according to a first embodiment of the present invention;

fig. 3 is a circuit connection diagram of a level shifter module of a mobile terminal supporting a PSAM card according to a first embodiment of the present invention;

fig. 4 is a circuit connection diagram of a card socket of a mobile terminal supporting a PSAM card according to a first embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present application in various embodiments of the present invention. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments.

The first embodiment of the present invention relates to a mobile terminal supporting a PSAM card, for example, a smartphone based on a high-pass platform, and the present embodiment is not particularly limited to the type of the mobile terminal. The mobile terminal of the present embodiment includes: the processing unit is used for packaging information needing to be sent to the PSAM card into a format meeting the requirements of the PSAM card and then transmitting the information to the PSAM card through the SIM card signal pin. Compared with the prior art, the embodiment of the invention directly connects the card seat with the SIM card signal pin of the processing unit by using the characteristic that the PSAM card and the SIM card signal pin have the same function definition, and encapsulates the information needing to be sent to the PSAM card into a format meeting the requirements of the PSAM card by using the processing unit, thereby enabling the mobile terminal to support the functions of the PSAM card without a PSAM special chip. Therefore, the embodiment can save one chip special for the PSAM, thereby not only being beneficial to reducing the cost, but also saving the area of the ornament on the circuit board of the mobile terminal and having stronger practical value. The following describes implementation details of the PSAM card-supporting mobile terminal according to this embodiment in detail, and the following is only provided for easy understanding of the implementation details and is not necessary for implementing this embodiment.

Referring to fig. 1, the mobile terminal supporting the PSAM card according to the present embodiment includes: processing unit 1, cassette 2, level conversion module 3. The processing unit 1 includes: the main application processing sub-unit 11, the communication processing sub-unit 12, and the storage unit 13, and the main application processing sub-unit 11 and the communication processing sub-unit 12 share the storage unit 13. The main Application processing subunit is, for example, an Application Processor (AP) of the smart phone, that is, the main Application processing subunit is a main processing unit of the smart phone and is responsible for running an operating system of the smart phone and various Application programs installed on the smart phone. The communication processing subunit 12 is a coprocessor of the main application processing subunit 11, and is mainly responsible for wireless communication of the smart phone, for example, wireless communication of wireless communication systems such as GSM cellular mobile communication, 2G, 3G, and 4G is implemented. The SIM card signal pin of the communication processing subunit 12 is correspondingly connected to the card socket. The present invention relates to a SIM (Subscriber Identity Module, SIM for short) card, which is a Subscriber Identity Module card in a smart phone, and the inventor of the present invention finds that the definition and function of the SIM card signal pin are the same as the definition of the function of the signal pin of the PSAM card, that is, the communication of the PSAM card can be realized by using the SIM card signal pin. Generally, the communication processing subunit 12 has multiple sets of SIM card signal pins so that the terminal can support SIM cards of different operators, which makes the smart phone have redundant SIM signal pins inside. In this embodiment, the SIM card signal pin of the processing unit, for example, the communication processing subunit 12, is connected to the card socket. The socket is, for example, a SIM socket or a PSAM socket, so that the PSAM card can communicate with the processing unit 1, i.e., so that the PSAM card can exchange information with the processing unit 1. In this embodiment, the processing unit 1 is further configured to encapsulate information that needs to be sent to the PSAM card into a format that meets the requirements of the PSAM card, and transmit the information to the PSAM card through the SIM card signal pin. Specifically, for example, the main application processing sub-unit 11 (i.e., AP) is configured to encapsulate the information to be sent to the PSAM card into a format meeting the requirements of the PSAM card, and then transmit the information to the PSAM card through the SIM card signal pin. For example, when the PSAM card is used for mobile payment identification, the information that needs to be sent to the PSAM card is bank payment information, which includes, for example, bank card magnetic track information, password information, and the like. In the prior art, bank payment information acquired by a mobile terminal is encapsulated into a format meeting the requirements of a PSAM card through a PSAM special chip, and the information format is encapsulated through a processing unit in the embodiment, so that on one hand, the powerful processing capacity of the mobile terminal can be utilized, on the other hand, the dependence on the PSAM special chip is abandoned, and the PSAM special chip can be cancelled in the mobile terminal. The implementation manner of encapsulating the information to be sent to the PSAM card into a format meeting the requirements of the PSAM card is well known to those skilled in the art, and is not described herein again.

It should be noted that, in the present embodiment, the main application processing sub-unit 11 and the communication processing sub-unit 12 can transmit information in a format meeting the requirements of the PSAM card to the PSAM card through the shared storage unit 13. Specifically, the main application processing sub-unit 11 is configured to write the encapsulated information into the shared storage unit 13 after encapsulating the information that needs to be sent to the PSAM card into a format that meets the requirements of the PSAM card, and trigger the communication processing sub-unit 12 to read the encapsulated information from the storage unit 13, so as to transmit the encapsulated information to the PSAM card through the SIM card signal pin of the communication processing sub-unit 12. Since the main application processing sub-unit 11 and the communication processing sub-unit 12 communicate with each other via the shared storage unit 13, the communication efficiency between the two can be made higher.

In this embodiment, the level conversion module 3 is electrically connected to the processing unit 1 and the socket 2. For example, the level shift module 3 may be electrically connected to the main application processing subunit 11. The level conversion module 3 is used for providing an operating voltage matched with the PSAM card in the card socket 2 under the control of the main application processing subunit 11. The working voltage of the conventional PSAM card is 1.8V, 3V, 5V, and the like. In this embodiment, the level conversion module 3 is specifically configured to provide 3 kinds of operating voltages to the PSAM card under the control of the main application processing subunit 11, so that the mobile terminal can be compatible with various PSAM cards in the market. In practical applications, the level shift module 3 may also provide 2 operating voltages, for example, 1.8V and 3V, 3V and 5V, or 1.8V and 5V, etc., to the PSAM card under the control of the main application processing subunit 11, and the present embodiment does not limit the voltage combinations that the level shift module can provide.

It should be noted that the main application processing subunit 11 controls the working voltage provided by the level conversion module 3 through a General Purpose Input/Output (GPIO) port, so as to conveniently implement configuration of the working voltage.

It should be noted that, in practical applications, different operating voltages may be provided to the PSAM card in other manners. For example, the voltage output end and the card socket power supply signal pin are connected through the single-pole triple-throw switch, that is, the moving end of the single-pole triple-throw switch is respectively connected with the voltage output ends of 1.8V, 3V and 5V inside the mobile terminal, the stationary end of the single-pole triple-throw switch is connected with the power supply signal pin of the card socket, and the control end of the single-pole triple-throw switch is connected with the processing unit, so that the switching of the single-pole triple-throw switch can be controlled through the processing unit to provide different working voltages for the PSAM card.

Next, the application of the embodiment of the present invention will be described as follows.

Please refer to the schematic diagram of the signal pin of the SIM card of the processing unit shown in fig. 2, wherein the processing unit employs, for example, a high-pass 8916 chip, and refer to the circuit diagram of the SIM card socket shown in fig. 4, so as to correspondingly connect the RST, CLK and DATA of the processing unit with the RST, CLK and I/O pins of the card socket, respectively. Referring to the circuit diagram of the level shift module shown in fig. 3, GPIO signals SAM _ SEL0 and SAM _ SEL1 of the processing unit are respectively connected to the level shift chip U1701. The relationship between the output signal of the GPIO and the voltage output by the level shifter module is shown in table one, for example:

watch 1

EN_1V8	EN_3V/5V	VCC
			0	0	Shutdown (instant power off)
0	1	1.8V
			1	0	3V
1	1	5V

In practical applications, when controlling the operating voltage of the PSAM card, the processing unit may first control the level conversion module to provide the PSAM card with an operating voltage of 1.8V, and detect whether normal communication can be established with the PSAM card at the operating voltage, if normal communication is possible, the current operating voltage of the PSAM card is 1.8V, and if normal communication cannot be established, the processing unit continues to control the level conversion module to provide the PSAM card with an operating voltage of 3V, and detects whether normal communication can be established with the PSAM card at the operating voltage, and so on until the operating voltage of the PSAM card is determined. Thus, the PSAM is supplied with the working voltage from low to high, and the burning of the PSAM card can be prevented.

The mobile terminal of the embodiment implements the PSAM card function in the following manner: the processing unit of the mobile terminal acquires information required to be sent to the PSAM card, encapsulates the information into a format required by the PSAM card and then transmits the information to the PSAM card, and the PSAM card encrypts the received information to enable the information to be in accordance with corresponding safety specifications, for example, bank safety specifications and then sends the information to a remote payment platform through the mobile terminal. Therefore, the mobile terminal of the embodiment can be matched with a bank card reader to realize various bank card services, thereby being greatly convenient for users to use the bank card to carry out operations such as transaction, inquiry and the like.

Compared with the prior art, the mobile terminal has the advantages that the strong hardware processing capacity and the abundant level conversion capacity of the mobile terminal are utilized, so that the corresponding working voltage can be provided for different types of PSAM cards, and information needing to be sent to the PSAM cards is converted into a format required by the PSAM cards.

A second embodiment of the present invention relates to a mobile terminal supporting a PSAM card. The second embodiment is substantially the same as the first embodiment, and mainly differs therefrom in that: in the first embodiment, the information required to be sent to the PSAM card is packaged into a format meeting the requirements of the PSAM card by the main application processing subunit, while in the second embodiment of the present invention, the information required to be sent to the PSAM card is packaged into a format meeting the requirements of the PSAM card by the communication processing subunit, thereby enriching the implementation manners of the present invention.

With reference to fig. 1, the communication processing sub-unit 12 is configured to package information to be sent to the PSAM card into a format meeting the requirements of the PSAM card, and then transmit the information to the PSAM card through the SIM card signal pin. Specifically, the main application processing sub-unit 11 may write the acquired information that needs to be sent to the PSAM card into the shared storage unit 13, and trigger the communication processing sub-unit 12 after the writing is completed, where the communication processing sub-unit 12 is configured to read the information that needs to be sent to the PSAM card from the storage unit 13, encapsulate the information that needs to be sent to the PSAM card into a format that meets the requirements of the PSAM card, and transmit the information to the PSAM card through the SIM card signal pin.

It should be noted that each module referred to in this embodiment is a logical module, and in practical applications, one logical unit may be one physical unit, may be a part of one physical unit, and may be implemented by a combination of multiple physical units. In addition, in order to highlight the innovative part of the present invention, elements that are not so closely related to solving the technical problems proposed by the present invention are not introduced in the present embodiment, but this does not indicate that other elements are not present in the present embodiment.

That is, as can be understood by those skilled in the art, all or part of the steps in the method for implementing the embodiments described above may be implemented by a program instructing related hardware, where the program is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, or the like) or a processor (processor) to execute all or part of the steps of the method described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.

Claims

1. A mobile terminal supporting a PSAM card, comprising: a processing unit and a card holder;

the SIM card signal pin of the processing unit is correspondingly connected with the card seat;

the card seat is used for mounting a PSAM card;

the processing unit is used for packaging information needing to be sent to the PSAM card into a format meeting the requirements of the PSAM card and then transmitting the information to the PSAM card through the SIM card signal pin.

2. The PSAM card-enabled mobile terminal of claim 1, wherein the processing unit comprises: a main application processing subunit and a communication processing subunit;

the main application processing subunit is connected with the communication processing subunit, and an SIM card signal pin of the communication processing subunit is correspondingly connected with the card seat.

3. The PSAM card-enabled mobile terminal of claim 2, wherein the main application processing sub-unit is configured to encapsulate information to be sent to a PSAM card into a format meeting requirements of the PSAM card, and then transmit the information to the PSAM card through a SIM card signal pin of the communication processing sub-unit.

4. The PSAM card-enabled mobile terminal of claim 2, wherein the communication processing subunit is configured to encapsulate information to be sent to a PSAM card into a format meeting the requirements of the PSAM card, and then transmit the information to the PSAM card through the SIM card signal pin.

5. A PSAM card-enabled mobile terminal according to claim 3 or 4, characterised in that the main application processing sub-unit and the communication processing sub-unit communicate via a shared memory unit to transfer information to the PSAM card in a format complying with the requirements of the PSAM card.

6. The PSAM card-enabled mobile terminal of claim 1, further comprising: a level conversion module;

the level conversion module is electrically connected with the processing unit and the card seat;

the level conversion module is used for providing working voltage matched with the PSAM card in the card seat under the control of the processing unit.

7. The PSAM card-enabled mobile terminal according to claim 6, wherein the operating voltage comprises: at least two of 1.8V, 3V and 5V.

8. The PSAM card-enabled mobile terminal according to claim 6, wherein the processing unit controls the operating voltage provided by the level conversion module through a GPIO.

9. The PSAM card-enabled mobile terminal of claim 1, wherein the card socket is a SIM card socket or a PSAM card socket.

10. The PSAM card-enabled mobile terminal according to claim 1, wherein the mobile terminal is a high-pass platform-based smartphone.