CN103379492B - Signal transmission method, transaction information display method and mobile device - Google Patents

Abstract

A signal transmission method, a transaction information display method and an action device. The signal transmission method of the present invention is executed in a control module. The control module includes multiple input and output ports, and two of the input and output ports are electrically connected to an input module and an output module respectively. The signal transmission method first receives a signal transmitted by the input module; then, the control unit determines whether to transmit the signal to the output module based on a flag in the signal and a flag set by a program in the control unit. If so, the input module and the output module are electrically connected to allow the input module and the output module to communicate with each other; if not, it determines whether the signal contains a multi-channel management instruction. If so, a specific channel is set to open according to the channel setting in the multi-channel management instruction, and the remaining channels are closed; otherwise, the corresponding processing program is executed according to the type of the signal.

Description

Signal transmission method, transaction information display method and mobile device

technical field

The present invention relates to a signal transmission method, in particular to a signal transmission method using multiple input and output ports (I/O) in a Java Card virtual machine framework, a transaction information display method and a mobile device.

Background technique

Referring to FIG. 1 , it is a schematic diagram of a circuit block in a conventional mobile device. The mobile device 900 includes a baseband module 910 and an electronic card socket 920 electrically connected to the baseband module (Base Band) 910 . Generally speaking, the Subscriber Identity Module (SIM) card is designated by the telecom operator for mobile network access, and is usually placed in the electronic card holder 920 and electrically connected to the baseband module 910 .

However, as the applications on mobile terminal devices become more diverse and the complexity of business links increases, more and more mobile terminal services must use authentication services different from SIM applications, so another set of authentication mechanisms is required , but the current mobile terminal design only designs an electronic card holder 920 only for the mobile terminal to access the network, which cannot meet the needs of diverse applications.

In order to solve the above problems, there are mainly three solutions adopted by the mobile device 900 today. The first is to put the authentication mechanism into the card slot of the Secure Digital (SD) card, but the communication protocol and authentication of the entire SD card With the adoption of the ISO 7816 protocol, there will be access problems in integration and compatibility and maintenance of terminal applications for different system development and version management. For the existing tens of thousands of mobile devices 900, this integration method , which is not conducive to the application and promotion of mobile commerce, and some mobile devices 900 do not have SD card slots, such as the iPhone.

The second solution is to put the authentication mechanism into the universal serial bus (Universal Serial Bus, USB) external slot, but USB also has the compatibility and maintenance problems of terminal application programs for different system development and version management, and is also not Conducive to the promotion of mobile commerce applications.

The third solution is to paste a thin film card on the top of the SIM card, and the user uses the selection of the communication protocol to distinguish the authentication security mechanism and agreement of different telecom operators, but there is a problem in this method, that is, the subscriber identification module ( SIM) itself has a certain thickness, so that the back cover of the mobile device 900 cannot be closed, and the film cards of different telecom operators cannot be used with each other, and there is still a problem of compatibility.

Contents of the invention

The purpose of the present invention is to provide a signal transmission method that can be applied to Java Card virtual machine framework to execute multiple input and output port control.

The signal transmission method of the present invention is executed in a control module, the control module includes a plurality of input and output ports, and two of the input and output ports are respectively electrically connected to an input module and an output module, and the signal transmission method includes the following steps:

(A) receiving the signal transmitted by the input module;

(B) The control unit judges whether to transmit the signal to the output module according to a flag in the signal transmitted by the input module and the flag set by the program in the control unit. If so, the input module is electrically connected to the output module for The input module and the output module communicate with each other, and return to step (A); if not, directly execute step (C);

(C) Judging whether the signal transmitted by the input module includes a multi-channel management command, if so, according to the channel setting in the multi-channel management command, setting the specific channel to open, and closing the other channels, and returning to step (A ); if not, proceed to step (D); and

(D) According to the type of the signal transmitted by the input module, execute the corresponding processing program. In this way, during the entire transaction process, the control unit will, according to the content of the signal transmitted by the input module, for example: terminal authentication authentication instruction, application call instruction, or EMV bank card authentication authentication service instruction, etc., And execute the switch between multiple input and output ports, in order to cooperate with the user to carry out the transaction.

More specifically, the control module also includes a program storage area for storing at least one program and a user identification unit, and step (D) includes the following sub-steps:

(D-1) Judging whether the signal transmitted by the input module is an authentication instruction, if so, the control module electrically connects the user identification unit to the input module for mutual communication between the user identification unit and the input module; if not, executes Step (D-2);

(D-2) Determine whether the signal transmitted by the input module is a standard Java Applet command, if so, the control module makes the program storage area electrically connected to other input and output ports for mutual communication between the program storage area and other input and output ports; if No, go to step (D-3); and

(D-3) The control unit returns the signal to the input module.

In addition, the signal transmission method also includes a step (E) before the step (A). The input module sends a reset command to the control unit when the control unit and the output module need to be reset.

The input module can be a base frequency module, an antenna module or various input devices related to ISO7816/UART; the output module can be an electronic deck, electronic card or standard ISO7816 input and output modules or components.

In addition, another object of the present invention is to provide a mobile device capable of implementing the above signal transmission method.

The mobile device of the present invention includes an input module capable of receiving a signal, an output module, and a control module.

The control module includes a plurality of input and output ports, a control unit electrically connected to the input and output ports, and a program storage area electrically connected to the control unit and storing at least one program, wherein the two input and output ports are respectively electrically connected to the input module and output module, wherein the control unit judges whether to transmit the signal to the output module according to a flag in the signal transmitted by the input module and a flag set by the program in the control unit, and if so, makes the input module and the output module If not, it is judged whether the signal transmitted by the input module contains a multi-channel management command, and if so, according to the channel setting in the multi-channel management command, the specific channel is set to Set it as open, and close the other channels; if not, execute the corresponding processing program according to the type of signal transmitted by the input module.

Since the control module is an integrated circuit application chip designed based on the Java card, it has the portability of the program and the storage, authentication, and uninstallation mechanisms of the security block, and can pass through a global platform (Global Platform) through the air (OnThe Air, OTA) to update and manage. In addition, the mobile device can also include a user identification unit electrically connected to the control unit, and the control module can be fabricated in the input module and integrated into the same chip with the input module, and the form is not limited.

Further, if the signal transmitted by the input module does not include the multi-channel management command, the control unit judges whether the signal transmitted by the input module is an authentication command, and if so, the control unit electrically connects the user identification unit to the input module, It is used for the user identification unit to communicate with the input module, and to judge whether the signal transmitted by the input module is a standard Java Applet command, and if so, the control unit electrically connects the program storage area to other input and output ports for the program storage area Communicate with other input and output ports, or call a specific program through a specific Java Applet command to call a specific service command and signal flow in the output module. If the control unit judges that the signal sent by the input module is not an authentication command or a standard Java Applet command, return the signal to the input module.

Therefore, this control module can be the virtual machine architecture of the Java card, which will have the state of the IO pin area (Get IO Status) where the current communication authentication command is obtained, and the IO where the authentication unit of the communication authentication command after setting is reset. The pin area (Set IO Status), and the application program on the Java virtual machine can call the specific service instruction and signal flow (Send Data to IO) of the output module and other functions.

In more detail, the input module includes a base frequency module and an antenna module, and the control module includes three input and output ports, which are respectively a first input and output port electrically connected to the input module and the control unit, and a first input and output port electrically connected to the The electronic deck and the second input and output port of the control unit, and a third input and output port electrically connected to the control unit. Wherein, the third input and output port can be electrically connected to the program storage area or the user identification unit through the control unit.

In another embodiment, the input module includes a baseband module and an antenna module, and the control module includes a first input and output port electrically connected to the input module and the control unit, and a first input and output port electrically connected to the electronic deck and the control unit. The second input-output port, and a third input-output port electrically connected to the control unit, the mobile device also includes a wireless communication module electrically connected to the third input-output port and the input module, and a wireless communication module electrically connected Antenna module. And the electronic deck includes a power supply voltage pin, a reset pin, a clock pin, a ground pin, a programming voltage pin, and a signal input/output pin. Wherein, the third input and output port can be electrically connected to the program storage area or the user identification unit through the control unit.

In addition, the wireless communication module can also support Single Wire Protocol (Single Wire Protocol, SWP), S2C (SigIn-SigOut-Connection) protocol or ISO14443 protocol functions.

The beneficial effect of the present invention is that it can cooperate with the user's application to perform over-the-air downloading, issuance, termination, invalidation, re-application for Subscriber Identity Module (SIM)/Universal Subscriber Identity Module (USIM), asymmetric encryption authentication authentication algorithm and certificate Personalized operations and security Java program (Applet) application management, such as smart cards related to banks/finance in various countries, increase the flexibility of mobile devices to meet the various needs of users.

Description of drawings

FIG. 1 is a schematic block diagram illustrating a circuit of a conventional mobile device;

Fig. 2 illustrates a preferred embodiment of the mobile device of the present invention;

FIG. 3 is a diagram illustrating the distribution of pins of the electronic deck;

Fig. 4 illustrates another aspect of the mobile device of the present invention;

FIG. 5 illustrates the initialization setting process performed by the electronic card before leaving the factory; and

Fig. 6 illustrates the signal processing flow of the control module when executing a transaction.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

Referring to FIG. 2 , it is a preferred embodiment of the mobile device of the present invention. The mobile device 100 can be a mobile phone or a personal digital assistant (Personal Digital Assistant, PDA), etc., and needs to communicate with the mobile network through a Subscriber Identity Module (SIM). installation.

The mobile device 100 includes an input module and a control module 30 . In this embodiment, the input module includes a baseband module (base band) 10 and an antenna (Antenna) module 40, certainly also can include various input devices related to ISO7816/UART, not limited to this embodiment, The output module is an electronic card holder 20 for inserting an electronic card 200, or a standard ISO7816 input and output module or component, and the electronic card 200 can be a Subscriber Identity Module (SIM) card, an EMV bank card (using Europay, MasterCard (Master card), IC card credit and debit transaction specifications planned by Visa), etc.

With reference to FIG. 3 , the electronic deck 20 has eight pins (pins) for transmitting signals, namely C1-C8, wherein the first pin C1 is the power supply voltage (VCC) pin, and the second pin C2 is the main pin. Set (Reset) pin, the third pin C3 is the clock (CLK) pin, the fourth pin C4 is an unused reserved pin, the fifth pin C5 is the ground (GND) pin, the sixth pin The pin C6 is a programming voltage (VPP) pin, the seventh pin C7 is a signal input/output (I/O) pin, and the eighth pin C8 is an unused reserved pin.

The control module 30 is an integrated circuit application chip (Chip) based on the Java card design, and is electrically connected between the base frequency module 10 and the electronic card holder 20. The control module 30 includes a plurality of input and output ports (I/O port), A control unit 34 electrically connected to the input and output ports, a program storage area 35 electrically connected to the control unit 34 , and a user identification unit 36 electrically connected to the control unit 34 . In this embodiment, the control module 30 includes three input and output ports, which are respectively a first input and output port 31 electrically connected to the baseband module 10 and a second input and output port electrically connected to the electronic deck 20 32, and a third input and output port 33 electrically connected to the antenna module 40.

The first I/O port 31 communicates with the baseband module 10 through the ISO-7816 protocol to transmit information to each other.

The second input/output port 32 is used for communicating with the electronic card 200 inserted in the electronic card holder 20 to transmit information to each other.

The third input/output port 33 is used for communicating with the antenna module 40 for mutual transmission of information.

The control unit 34 is used to control the electrical connection between the first input and output port 31 and the second input and output port 32 according to the content of the signal transmitted by the base frequency module 10 for mutual transmission of information between the base frequency module 10 and the electronic card 200, or to connect the The program storage area 35 is electrically connected to the second I/O port 32 for mutual transmission of information between the application program and the electronic card 200, or the program storage area 35 is electrically connected to the first I/O port 31 for the baseband module 10 and the program storage area 35 to transmit information to each other, or to electrically connect the user identification unit 36 to the first input and output port 31 for the baseband module 10 and the user identification unit 36 to transmit information to each other, or to electrically connect the user identification unit 36 to the second input and output port 32 The electronic card 200 and the user identification unit 36 are used for mutual transmission of information, or the program storage area 35 and the user identification unit 36 are electrically connected for the mutual transmission of information between the program storage area 35 and the user identification unit 36, or the program storage area 35 and the second user identification unit are electrically connected. The three input and output ports 33 are electrically connected for the antenna module 40 and the program storage area 35 to transmit information to each other, or the user identification unit 36 is electrically connected to the third input and output port 33 for the antenna module 40 and the user identification unit 36 to transmit information to each other.

The program storage area 35 provides at least one Java program storage, and the application program can be downloaded from the air (Over The Air, OTA) correspondingly by the user in conjunction with the type of the electronic card 200, and it can be a user identification application development tool (SIMApplication Toolkit, STK ) program or Java Applet program, etc.

The subscriber identification unit 36 is used to provide personalized data storage such as Subscriber Identity Module (SIM)/Universal Subscriber Identity Module (USIM), and the data can be obtained through OTA.

In the present invention, the control module 30 is a control chip with multiple input and output ports (i.e. the first input and output port 31, the second input and output port 32 and the third input and output port 33), which can be controlled according to the baseband module 10 The transmitted signal type is correspondingly controlled so that any two of the baseband module 10 , the electronic card 200 , the program storage area 35 , the user identification unit 36 , and the antenna module 40 communicate with each other to transmit information. Moreover, the control module 30 is built on the Java Card virtual machine architecture, which can make other applications in the mobile device 100 that also conform to the Java Card standard specification, such as: EMV, PBOC, Certificate Authority (Certificate Authority, CA), public Key infrastructure (Public Key Infrastructure, PKI), etc., can be transplanted to the Java virtual machine of the control module 30 to execute, and because the virtual machine architecture of the Java card is a framework that can support the Global Platform (Global Platform), it has the ability to update over the air The ability to update the application programs, security authentication components and systems in the program storage area 35 in the control module 30, or update the authentication information in the user identification unit 36, etc., is a security circuit element (Security Element). In particular, the control module 30 can be fabricated in the baseband module 10 and integrated with the baseband module 10 into the same chip, or can be independently formed into a single chip, and the manufacturing method is not limited.

In addition, the appearance of the mobile device 100 of this embodiment can also be shown in FIG. 4 , the mobile device 100 further includes a wireless communication module 50 electrically connected to the baseband module 10 , the third input/output port 37 and the antenna module 40 . 3 and 4, in this aspect, the antenna module 40 is electrically connected to the third input and output port 33 through the wireless communication module 50, and the wireless communication module 50 is a near field communication (Near Field Communication, NFC) module , which includes a first communication pin 51 . The first communication pin 51 of the wireless communication module 50 is electrically connected to the third I/O port 33 so that the control module 30 can communicate with the wireless communication module 50 and the antenna module 40 to transmit information to each other. Wherein, the connection between the third input/output port 33 and the first communication pin 51 can be soldered, an analog circuit, a multiplexer, etc., and is not limited to any connection method.

In particular, the wireless communication module 50 can also support Single Wire Protocol (Single Wire Protocol, SWP) protocol, S2C (SigIn-SigOut-Connection) protocol or ISO 14443 protocol.

Referring to FIG. 2 and FIG. 5 , the mobile device 100 can provide the functions and mechanism of a Subscriber Identity Module (SIM) card corresponding to a carrier operator. In the user identification unit 36, the user can activate the door number of the mobile device 100 through the air after purchasing it on the market, and perform communication functions such as calls and short messages (SMS) through the user identification unit 36, so that the electronic card holder 20 There will be no need to insert a Subscriber Identity Module (SIM) card, and the vacant electronic card holder 20 can be used by banks, third-party payment authentication companies, transportation and other businesses.

However, since the control module 30 is an integrated circuit application chip designed based on the Java Card, the control module 30 of each mobile device 100 needs to be initialized in the industrial chain before leaving the factory. Relevant factory personnel can use a card reader or an initialization device to determine whether the control module 30 is in an initial state (Native Status), as in step S11. If the control module 30 is in the initial state, it means that the control module 30 is an initial card (Native Card), and the initialization setting will be carried out, and software such as the operating system, card management program, and related user personalization data will be loaded into the control module. In 30, such as step S12. If the control module 30 is not in the initial state, it means that the control module 30 has been a Java card (or is in a Java card state), then the control module 30 will not need to be initialized, and the process will end.

Then referring to Fig. 2 and Fig. 6, when the user obtains the electronic card 200 after the initialization and inserts the electronic card 200 in the electronic card holder 20, the bank can pass the control of the control module 30 and the program storage area 35. Java program (Applet) for transactions. The detailed procedures executed by the control module 30 when the user conducts financial transactions will be described in detail below.

Step S21, after the user turns on the mobile device 100 or actively resets it, the baseband module 10 will send a reset command to the control module 30 and the electronic card 200 when it is necessary to reset the control unit 34 and the electronic card 200 The electronic card 200 on the seat 20.

Step S22 , the control unit 34 receives the signal transmitted by the baseband module 10 through the first input and output port 31 .

Step S23, the control unit 34 judges whether to transmit the signal to the electronic deck 200 according to a flag (Flag) in the signal transmitted by the baseband module 10 and the flag set by the program in the control unit, if the signal is determined to be If it needs to be transmitted to the electronic card holder 200, it means that the signal is related to the EMV bank card or financial transaction, then execute step S24, and then return to step S22 to wait for the instruction; otherwise, directly execute step S25.

In step S24 , the control unit 34 electrically connects the first I/O port 31 and the second I/O port 32 for mutual transmission of information between the baseband module 10 and the electronic card 200 .

In step S25, the control unit 34 electrically connects the program storage area 35 to the first input and output port 31 for mutual transmission of information between the baseband module 10 and the program storage area 35, and the control unit 34 will determine whether the signal transmitted by the baseband module 10 includes Multi-Channel (Multi-Channel) management command, the multi-channel command includes a plurality of channel settings, and each channel setting will correspond to the Java Applet program specified in the program storage area 35 . If the signal transmitted by the baseband module 10 is a multi-channel management command, execute step S26; otherwise, execute step S27.

Step S26, the control unit 34 sets a specific channel to be ON (ON) according to the channel setting in the multi-channel management command, and turns off (OFF) the rest of the channels, and stores the information in the channels that are closed during execution into the memory in the staging area. In this embodiment, the control unit 34 opens the channel corresponding to the bank's Java Applet program, and closes the rest of the channels, and returns to step S22 to wait for instructions.

In step S27 , the control unit 34 switches to the corresponding processing program according to the type of the signal transmitted by the baseband module 10 . In this embodiment, step S27 may include the following steps:

Step S271, the control unit 34 judges whether the signal transmitted by the baseband module 10 is an authentication instruction (for example: SIM/USIM Applet), and if so, it means that the signal is a Global System for Mobile Communications (Global System for Mobile Communications, GSM) instruction , execute step S272; otherwise execute step S273.

Step S272 , the control unit 34 electrically connects the user identification unit 36 to the first input and output port 31 for the baseband module 10 and the user identification unit 36 to transmit information to each other.

In step S273, the control unit 34 judges whether the signal transmitted by the baseband module 10 is a standard Java Applet command or a Java SIM Applet command, and if so, executes step S274. If the control unit 34 judges that the signal transmitted by the baseband module 10 is neither a GSM command nor a standard Java Applet command or a Java SIM Applet command, then it is deemed to be a Java Card Execution Environment (Java Card Runtime Environment, JCRE) command or a test command, and the control unit 34 Step S275 will be executed.

Step S274, the control unit 34 electrically connects the program storage area 35 to the first input and output port 31 according to the standard Java Applet command or the Java SIM Applet command, so that the baseband module 10 and the program storage area 35 can transmit information to each other, or the program storage area 35 is electrically connected with the second input and output port 32 for mutual transmission of information between the electronic card 200 and the program storage area 35, or the program storage area 35 is electrically connected with the third input and output port 33 for the communication between the antenna module 40 and the program storage area 35 To transmit information, and when executing a standard Java Applet, a specific program can be called through a specific Java Applet command to call a specific service command and signal flow in the electronic card 200 electrically connected to the second input and output port 32.

Step S275 , the control unit 34 returns the signal to the baseband module 10 through the first input and output port 31 . Of course, with different settings, the control unit 34 can also send the signal back to step S24, or deliver it to a specific JCRE circuit for execution, or call a specific program through a specific Java Applet command to call its specific service command and signal flow, It is not limited to this embodiment.

Therefore, through the above steps S21 to S27, during the entire financial transaction process, the control unit 34 will continue to judge the signal type transmitted by the baseband module 10, such as: terminal authentication instruction, application program call instruction, or EMV bank card authentication and authentication service instructions, etc., and constantly electrically connect the base frequency module 10 to the program storage area 35, or connect the program storage area 35 to the electronic card socket 20, or electrically connect the base frequency module 10 to the electronic The card holder 20, or the antenna module 40 is electrically connected to the program storage area 35, etc., as long as it is an instruction that the control unit 34 cannot recognize, the control unit 34 will return the instruction to the electronic card 200, if the electronic card 200 If it cannot be identified, it will be sent back to the baseband module 10 for execution by specific circuits in the mobile device 100 . In addition, the control unit 34 can also perform over-the-air issuance, termination, invalidation, re-application for Subscriber Identity Module (SIM)/Universal Subscriber Identity Module (USIM), asymmetric encryption authentication and authentication algorithms and certificates, bank Personalized operations such as financial-related smart cards increase the flexibility of the control module 30 to meet the various needs of users. Of course, the above process is not limited to financial transactions. Telecommunication communications such as phone calls and text messages (SMS), or certification/authorization communications such as certification authority (CA)/public key infrastructure (PKI) can all complete authentication and transactions through this process, and It is not limited to this embodiment.

In addition, the mobile device 100 of this embodiment can perform over-the-air updates for each JavaApplet program in the program storage area 35 through the global platform. For a telecom operator or mobile phone provider with this architecture, it can manage and communicate with the electronic card 200 through TSM and OTA Applet. Mobile business operators (for example: banks, certification agencies, telecom operators, etc.) carry out application security and cooperation. Such a variety of applications can enable the mobile device 100 to match the business models of various countries and fields, and can solve the problem of mobile terminal equipment in various fields. Use increasingly diverse business links and authentication identification issues.

Referring to Fig. 2, the electronic card holder 20 of the present embodiment can also be inserted with a Subscriber Identity Module (SIM) card. At this time, communication functions such as calls and short messages (SMS) of the mobile device 100 are performed by the Subscriber Identity Module card, and the control unit 34 According to the signal type transmitted by the baseband module 10 , the first input-output port 31 and the second input-output port 32 are electrically connected for mutual transmission of information between the baseband module 10 and the electronic card 200 . And the user can download the Java Applet programs corresponding to various banks from the air, and the mobile device 100 will store these Java programs in the program storage area 35, and by the control of the control unit 34, the first input and output port 31 will be connected to the program. The storage area 35 is electrically connected for the baseband module 10 to communicate with the Java program for the user to perform financial transactions, so the type of electronic card 200 inserted in the electronic card holder 20 and the Java Applet program can be used in accordance with the user's needs. Change.

In addition, with reference to Fig. 2, Fig. 4 and Fig. 5, the third input/output port 33 of the present embodiment can also receive it from a wireless non-contact point of sale (Point of Sale, POS) host computer (such as: department store's information release POS machine, bank consumption POS machine, subway bus ramp POS machine, etc.), specific information (such as consumption discount information) is delivered to the program storage area 35 of the control module 30, The specific temporary storage program can actively display its related transaction or promotional information to the user through the application program (APPs) in the mobile device 100 or its STK menu. The user can confirm whether to purchase the service by further operation. Let the application program (APPs) or STK menu of the mobile device 100 pass through the first input and output port 31 of the control module 30, the program storage area 35, the user identification unit 36, or/and the electronic card 200 electrically connected to the second input and output port 32 Interact with the background trading system (not shown) to complete this transaction.

To sum up, the mobile device 100 of the present invention is a virtual machine framework of a Java card by means of the control module 30, which has the status of the input and output pin area (Get IO Status) where the current communication authentication command is obtained, and after the setting is reset. The authentication unit of the communication authentication command is located in the input and output pin area (Set IO Status), and the application program on the Java virtual machine can call the specific service command and signal flow (Send Data to IO) of the output module and other functions, and It can also cooperate with the user's application to perform over-the-air downloading, issuance, termination, invalidation, re-applying for Subscriber Identity Module (SIM)/Universal Subscriber Identity Module (USIM), asymmetric encryption authentication and authentication algorithms and certificates, and banking/financial related in various countries Personalized operations such as smart cards increase the flexibility of the mobile device to meet the various needs of users, so the purpose of the present invention can indeed be achieved.

Claims (16)

1. A signal transmission method, implemented in a control module, the control module includes a plurality of input and output ports, a program storage area for at least one program storage and a user identification unit, and an electrical connection between the input and output The control unit of the port, and wherein two input and output ports are respectively electrically connected to an input module and an output module; it is characterized in that: The signal transmission method includes the following steps: (A) receiving a signal transmitted by the input module; (B) The control unit judges whether to transmit the signal to the output module according to a flag in the signal transmitted by the input module and the flag set by the program in the control unit, and if so, makes the input module and the The output module is electrically connected so that the input module and the output module communicate with each other, and return to step (A); if not, directly execute step (C); (C) judging whether the signal transmitted by the input module includes a multi-channel management instruction, the multi-channel management instruction includes multiple channel settings, and each channel setting corresponds to a designated program, and the designated program is the at least one The program in the program, if yes, according to the channel setting in the multi-channel management command, set the specific channel to be on, and turn off the other channels, and return to step (A); if not, then execute step (D) and (D) execute a corresponding processing program according to the type of the signal transmitted by the input module, and include the following sub-steps: (D-1) Determine whether the signal transmitted by the input module is an authentication command, if so, the control module electrically connects the user identification unit to the input module, so that the user identification unit and the input module can communicate with each other ; If not, execute step (D-2); (D-2) Determine whether the signal transmitted by the input module is a standard Java Applet command, if so, the control module makes the program storage area electrically connected to other input and output ports for the program storage area and other input and output ports communicate with each other; if not, perform step (D-3); and (D-3) The control unit returns the signal to the input module. 2. The signal transmission method according to claim 1, further comprising a step (E) before the step (A), wherein the input module transmits a reset command to the control unit. 3. The signal transmission method according to claim 1, wherein the output module can be an electronic deck, an electronic card, or a standard ISO7816 input and output module or component. 4. The signal transmission method according to claim 1, wherein the input module can be a baseband module, an antenna module or various input devices related to ISO7816/UART. 5. The signal transmission method according to claim 1, characterized in that: the control module has an input for obtaining the state of the input and output pin area of the current communication authentication command, and setting the authentication unit of the communication authentication command after reset. The output pin area, and the virtual machine function command that allows the application program on the virtual machine to call the specific service command and signal flow of the output module. 6. A mobile device; characterized in that: This mobile device contains: An input module, receiving a signal; an output module; and A control module, including a plurality of input and output ports, a control unit electrically connected to the input and output ports, a program storage area electrically connected to the control unit and used for storing at least one program, and a program storage area electrically connected to the control unit The subscriber identification unit, wherein the two input and output ports are respectively electrically connected to the input module and the output module, Wherein, the control unit judges whether to transmit the signal to the output module according to a flag in the signal transmitted by the input module and a flag set by the program in the control unit, and if so, makes the input module and the output module The modules are electrically connected for the input module and the output module to communicate with each other; if not, it is judged whether the signal transmitted by the input module includes a multi-channel management command, and the multi-channel management command includes multiple channel settings, and each The channel setting is for the specified program in at least one program in the program storage area, if yes, according to the channel setting in the multi-channel management instruction, the specific channel is set to open, and the other channels are closed; if If not, execute the corresponding processing program according to the type of the signal transmitted by the input module; and Wherein, the corresponding processing program executed by the control unit includes judging whether the signal transmitted by the input module is an authentication instruction, and if so, the control unit electrically connects the user identification unit to the input module for the user The identification unit communicates with the input module, if not, the control unit judges whether the signal transmitted by the input module is a standard Java Applet command, if so, the control unit electrically connects the program storage area to other input and output ports, For the program storage area to communicate with other input and output ports, if the control unit judges that the signal sent by the input module is not the authentication command or the standard Java Applet command, then return the signal to the input module. 7. The mobile device according to claim 6, wherein the input module includes a baseband module and an antenna module, and the control module includes a first input and output port electrically connected to the input module and the control unit . A second input-output port electrically connected to the electronic deck and the control unit, and a third input-output port electrically connected to the control unit. The antenna module is electrically connected to the third input-output port. 8. The mobile device according to claim 6, wherein the input module includes a baseband module and an antenna module, and the control module includes a first input and output port electrically connected to the input module and the control unit , a second input-output port electrically connected to the electronic deck and the control unit, and a third input-output port electrically connected to the control unit, the mobile device also includes a second input-output port electrically connected to the third input-output port and The wireless communication module of the input module, the antenna module is electrically connected to the wireless communication module. 9. The mobile device according to claim 7 or 8, wherein the third input/output port is electrically connected to the program storage area or the user identification unit through the control unit. 10. The mobile device according to claim 9, wherein the output module comprises a power supply voltage pin, a reset pin, a clock pin, a ground pin, a programming voltage pin, a signal Input/output pins. 11. The mobile device according to claim 6, wherein the control module is an integrated circuit application chip designed based on Java Card, and the program is a Java Applet program. 12. The mobile device according to claim 6, wherein the control module is fabricated in the input module, and is integrated with the input module into a same chip. 13. The mobile device according to claim 6, wherein the output module can be an electronic deck, an electronic card, or a standard ISO7816 input/output module or component. 14. The mobile device according to claim 6, wherein the input module can be a baseband module, an antenna module or various input devices related to ISO7816/UART. 15. The mobile device according to claim 6, characterized in that: the control module has the functions of obtaining the state of the input and output pin area of the current communication authentication command, and setting the input and output of the authentication unit of the communication authentication command after reset. The pin area, and the virtual machine function instructions that allow the application program on the virtual machine to call the specific service instructions and signal flow of the output module. 16. A transaction information display method, applied to the mobile device according to claim 6, the mobile device can communicate with a non-contact point-of-sale host, and includes a control unit and a program storage area, the transaction information The display method consists of the following steps: (A) receiving information transmitted by the point-of-sale host; (B) the control unit stores the information in the program storage area; and (C) The control unit calls the information in the program storage area according to a specific program to generate a transaction screen related to the information.