KR20030015003A - Multiple smart card terminal and control method of the terminal - Google Patents

Abstract

The present invention relates to a smart card terminal and a control method, and more particularly, to perform data communication with a plurality of smart cards having a mutual correlation with a single smart card terminal through routines branched by smart cards, and mutually in a selected smart card. It relates to a multi-smart card terminal and a control method for controlling to execute the authentication and the corresponding command.

By developing an interface and various smart card execution programs to simultaneously branch and process a plurality of smart cards in a structure having a plurality of smart card sockets, the data of a plurality of smart cards can be simultaneously processed by a single multi smart card terminal. It is possible to produce a convenient effect.

Description

Multiple smart card terminal and control method of the terminal

The present invention relates to a smart card terminal and a control method, and more particularly, to perform data communication with a plurality of smart cards having a mutual correlation with a single smart card terminal through routines branched by smart cards, and mutually in a selected smart card. It relates to a multi-smart card terminal and a control method for controlling to execute the authentication and the corresponding command.

The smart card terminal according to the prior art has only one socket for connecting a smart card and is programmed to process only a single smart card, so that data of a plurality of smart cards having a master / slave relationship or a close correlation can be obtained. In order to process at the same time there was an inconvenience in use to use two smart card terminals.

For example, the smart card terminal according to the prior art requires two smart card terminals to simultaneously process prescription data using a doctor smart card and a patient smart card in a system for receiving medical services with a smart card. As such, a technology for executing data processing of two smart cards at the same time by a single smart card terminal has not been developed, which causes inconvenience in use. In addition, there is a problem that a data security problem may occur while executing data processing including mutual authentication of two smart cards using two smart terminals.

The technical problem to be achieved by the present invention is to provide a socket into which a plurality of smart cards can be inserted in order to solve the above problems, and to embed hardware and software for simultaneously processing data of a plurality of smart cards inserted into the socket. A multi smart card terminal and method are provided.

1 is a diagram illustrating a coupling structure of a multi smart card terminal and a personal computer according to the present invention.

2 is a block diagram of a multi smart card terminal according to the present invention.

3 is a flowchart illustrating a method for controlling a multi smart card terminal according to the present invention.

In order to achieve the above technical problem, a multi-smart card terminal according to the present invention includes a smart card socket, a plurality of smart card sockets and a personal computer for inserting a plurality of smart cards to perform an electrical connection with the smart card. And a smart card data processing unit comprising hardware and software necessary for data processing for selectively or simultaneously executing data communication between a plurality of smart cards inserted into the plurality of smart card sockets.

The smart card data processing unit supplies electrical signals to smart cards inserted into the plurality of smart card sockets, and inputs / outputs data of the smart card to perform data communication by a predetermined communication protocol with the selected smart card. A smart card interface unit for converting to meet a predetermined transmission standard, the smart card data processing unit collectively controls, selectively controls data communication between a personal computer and smart cards, in particular the detection of the insertion of the smart card, the plurality Microcontroller for controlling the distribution of electrical signals to the smart card socket of the PC, a PC interface unit for converting input / output data of the personal computer to meet a predetermined transmission standard, and data communication between the personal computer and the plurality of smart cards. Process required for Memory for storing programs and data for execution.

In accordance with another aspect of the present invention, there is provided a method for controlling a smart card terminal for controlling a smart card terminal for processing data of a plurality of smart cards, the method comprising: (a) first supplying power to a smart card terminal; In case of initializing the system, (b) determining whether a card detection signal is received by inserting a smart card into the plurality of smart card sockets, and initializing the smart card when the card detection signal is received; (c) when a predetermined command is received from the personal computer, analyzing the received command, selecting a corresponding smart card inserted into the plurality of smart card sockets, and transmitting the received command to the selected smart card; and (d) The personal computer receives the response data processed by the selected smart card. Characterized in that it comprises the step of transmitting.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, a coupling structure of a multi smart card terminal and a personal computer according to the present invention will be described with reference to FIG.

The personal computer 10 and the smart card terminal 20 are connected with a cable 30, and the cable 30 is installed outside the smart card terminal 20 and the connector 10a installed outside the personal computer 10. It serves to electrically connect the connector 20a.

In addition, in one embodiment of the present invention, the smart card terminal 20 includes two smart card mounting sockets 20a and 20b for inserting two smart cards to execute data processing at the same time.

The connectors 10a and 20a may include, for example, a power supply terminal, a ground terminal, a reset terminal, a clock terminal, an input / output terminal, and spare terminals. The clock terminal is a signal input to the smart card and has a frequency of up to 20 MHz depending on the communication speed, and the input / output terminal is a terminal used to read and write data to the smart card and has a speed of 9600bps to 38400bps. Also, the reset terminal is a signal terminal used only when operating the smart card.

Then, the electrical operation performed in the smart card terminal 20 will be described in detail with reference to FIG.

As shown in FIG. 2, the multi smart card terminal according to the present invention includes a PC interface unit 201, a microcontroller 202, a smart card interface unit 203, a memory 204, and a smart card socket 1 205. , Smart card socket 2 206 and option block 1000.

The option block 1000 includes a constant voltage control unit 207 and a clock control unit 208, and the constant voltage and clock required for the smart card through the power and clock terminals of the connector 10a of the personal computer 10 according to the design specification. The signal may be directly supplied, in which case the option block 1000 may be deleted.

The constant voltage controller 207 is a circuit configuration for supplying a constant voltage and current to the smart card, and includes an overcurrent protection circuit for preventing an electric shock or an overcurrent. In addition, a hardware reset circuit according to an error for recovering a smart card terminal malfunction due to an internal error of the microcontroller 202 is also included.

The clock control unit 208 supplies the main clock to the microcontroller for supplying a constant clock to the smart card inserted into the microcontroller 202 and the smart card sockets 1 and 2 (205 and 206), and the smart card to the communication speed. Therefore, the clock frequency is divided and supplied.

The PC interface unit 201 is composed of hardware and software for converting a signal having a level and timing defined to enable data transmission / reception between the personal computer 10 and the smart card terminal 20 to conform to the transmission standard. .

The smart card interface unit 203 is hardware and software for converting a smart card and a signal having a level and timing defined to enable data transmission / reception between the microcontroller 202 of the smart card terminal 20 in accordance with a transmission standard. Consists of In addition, electrical signals (power, clock, reset, etc.) are also supplied to the smart card, wherein reset, card detection signals, and I / O data are transmitted to the smart card sockets 1, 2 (205, 206). Hardware and software are designed to handle each separately according to the inserted smart card.

The microcontroller 202 collectively controls the smart card terminal 20 and controls data communication between the personal computer 10 and the smart card, in particular the detection of the insertion of the smart card, the electrical to the plurality of smart card sockets. It selectively controls data distribution and data communication with the smart card mounted in the smart card sockets 1, 2 (205, 206) to distribute signals.

The smart card sockets 1, 2 (205, 206) have an insertion opening for inserting a smart card, and have a structure for executing an electrical connection between the smart card and the smart card terminal 20.

Next, a plurality of smart card control processes processed by the smart card terminal 20 will be described with reference to the flowchart of FIG. 3.

First, when power is first applied to the smart card terminal 20, the microcontroller 202 initializes the smart card terminal 20 to enable data communication with the smart card and the personal computer 10 (step 301).

After the smart card terminal 20 is initialized, it is determined by the card detection signal whether the smart card is inserted into the smart card sockets 1,2 and 206 (step 302). That is, when the smart card is inserted into the smart card sockets 1 and 2 (205 and 206), the electrical signal terminals between the smart card sockets 1 and 2 (205 and 206) and the smart card are brought into contact with each other so that the card is detected in this case. Generate a signal.

When the card detection signal is generated, the smart card is reset in order to activate the smart card by software (step 303).

A command for reading the information recorded on the smart card by the application program of the personal computer 10 or writing the information transmitted from the personal computer to the smart card via the PC interface unit 201 while the smart card is activated. When input to the microcontroller 202 (step 304), the microcontroller 202 processes the data of the input command to determine which smart card socket is a command corresponding to the smart card inserted into the data of the smart card Select a routine to process (step 305). Then, the command is transmitted from the personal computer to the smart card inserted into the corresponding smart card socket selected through the smart card interface unit 203 for processing (steps 306 and 308). After the data processing corresponding to the command sent to the selected smart card is executed in the smart card, the executed result information is transmitted to the smart card interface unit 203 through the signal lines connected to the smart card sockets 1,2 and 205 and 206, respectively. Is input to the microcontroller 202 via steps 307 and 309. When the microcontroller 202 receives the result information executed from the smart card, the microcontroller 202 transmits the result information back to the personal computer 10 through the PC interface unit 201 to complete execution of one command (step 310). By executing these commands repeatedly, one application runs.

The present invention provides two cards as a terminal for issuance by a master card managing mutual authentication between a main card and a seed card, prescription and preparation data processing between a doctor and a pharmacist and a patient card, and a key for issuing a general card. Applicable to applications that can be used simultaneously.

In addition, an IC card terminal added to a general credit card terminal can be added with a connector so that two cards can be used simultaneously depending on the application. When the data throughput of the terminal increases relatively as the memory capacity of the smart card increases, it is necessary to process a large amount of data at high speed. A large amount of data can be processed at high speed.

In an embodiment of the present invention, for convenience of description, the present invention is limited to an apparatus and a method for processing data of two smart cards at the same time. It is natural that it is possible.

The invention can be practiced as a method, apparatus, system, or the like. When implemented in software, the constituent means of the present invention are code segments that necessarily perform the necessary work. The program or code segments may be stored in a processor readable medium or transmitted by a computer data signal coupled with a carrier on a transmission medium or network. Processor readable media includes any medium that can store or transmit information. Examples of processor-readable media include electronic circuits, semiconductor memory devices, ROMs, flash memory, erasable ROM (EROM), floppy disks, optical disks, hard disks, optical fiber media, radio frequency (RF) networks, Etc. Computer data signals include any signal that can propagate over transmission media such as electronic network channels, optical fibers, air, electromagnetic fields, RF networks, and the like.

Specific embodiments shown and described in the accompanying drawings are only to be understood as an example of the present invention, not to limit the scope of the invention, but also within the scope of the technical spirit described in the present invention in the technical field to which the present invention belongs As various other changes may occur, it is obvious that the invention is not limited to the specific constructions and arrangements shown or described.

As described above, according to the present invention, a single multi smart card terminal is developed by developing an interface and various smart card execution programs to simultaneously branch and process a plurality of smart cards in a structure having a plurality of smart card sockets. The data of a plurality of smart cards can be processed simultaneously, resulting in a convenient effect.

Claims (7)

In the smart card terminal, A plurality of smart card sockets for inserting a plurality of smart cards to effect electrical connection with the smart cards; And And a smart card data processing unit comprising hardware and software necessary for data processing for selectively or simultaneously executing data communication between a personal computer and a plurality of smart cards inserted into the plurality of smart card sockets. Card terminal. The method of claim 1, wherein the smart card data processing unit In order to supply electrical signals to the smart cards inserted into the plurality of smart card sockets and to perform data communication by a predetermined communication protocol with the selected smart card, input / output data of the smart card conforms to a predetermined transmission standard. Smart card interface unit for converting so that; A microcontroller which collectively controls the smart card data processing unit, selectively controls data communication between a personal computer and smart cards, and in particular, controls the insertion detection of a smart card and the distribution of electrical signals to the plurality of smart card sockets. Controller; A PC interface unit for converting input / output data of the personal computer to meet a predetermined transmission standard; And And a memory for storing a program and data for executing a process required for data communication between the personal computer and the plurality of smart cards. The multi-voltage controller of claim 2, further comprising a constant voltage controller for supplying a constant voltage to the smart card by using the power supplied from the personal computer, and a protection circuit for electric shock, overvoltage, and overcurrent from the outside. Smart card terminal. The multi-smart card terminal of claim 2, further comprising a clock control unit for generating a clock frequency corresponding to a communication speed in the smart cards inserted into the plurality of smart card sockets. The multi-smart card terminal of claim 2, wherein the electrical signals are power, clock, and various data signals. The method of claim 2, wherein the program is (a) initializing the system when power is first supplied to the smart card terminal; (b) determining whether a card detection signal is received by inserting a smart card into the plurality of smart card sockets, and initializing the smart card when the card detection signal is received; (c) when a predetermined command is received from the personal computer, analyzing the received command, selecting a corresponding smart card inserted into the plurality of smart card sockets, and transmitting the received command to the selected smart card; And and (d) receiving the response data processed by the selected smart card and transmitting the response data to the personal computer. In the method of controlling a smart card terminal for processing data of a plurality of smart cards, (a) initializing the system when power is first supplied to the smart card terminal; (b) determining whether a card detection signal is received by inserting a smart card into the plurality of smart card sockets, and initializing the smart card when the card detection signal is received; (c) when a predetermined command is received from the personal computer, analyzing the received command, selecting a corresponding smart card inserted into the plurality of smart card sockets, and transmitting the received command to the selected smart card; And (d) receiving the response data processed by the selected smart card and transmitting the received response data to a personal computer.