JPH1115941A - Ic card, and ic card system including the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a unique function on both surfaces and to make them accessible by providing 1st and 2nd surfaces of an IC card with 1st and 2nd function parts and operating one desired function part to communicate externally. SOLUTION: An A-surface side of an IC card is provided with memory 5, a B-surface side is provided with a CPU 7, and the IC card has two functions as a memory card and a CPU card even though it is one piece of a card. When the IC card is used as a memory card, a card controlling part 6 is given an A-surface signal 10 as a used surface detection signal 20, and when it is used as a CPU card, a B-surface signal 15 is given. Because an MPU of the part 6 preliminarily stores information that specifies functions (the memory card or the CPU card) which are held by each use surface of the IC card, it can decide whether an IC card to be inserted is accessed as a memory card or as a CPU card based on the signal 20.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an IC card and an IC card system including the same, and more particularly, to an IC card having both sides of an IC card having unique functions and an IC card system including the same.

[0002]

2. Description of the Related Art Conventionally, a technology relating to an IC card is disclosed in Japanese Patent Application Laid-Open No. 62-77996.
JP, JP-A-2-185494 and JP-A-Hei-8
No. 241383. JP-A-62-77
The IC card disclosed in Japanese Patent Application Publication No. 996 is designed to prevent reverse insertion into a connector.
In No. 494, a guide groove is formed in the IC card to prevent the IC card from being erroneously inserted into an external device upside down. Japanese Patent Application Laid-Open No. 8-241383 discloses a non-contact I
A technique is shown in which the modulation method of transmission data for a C card is selectively switched by an external switch.

[0003] As described above, there has not been proposed any technology in which an IC card is provided with unique functions on both sides and these can be individually accessed.

It is therefore an object of the present invention to provide an IC card which has unique functions on both sides and can access them, and an IC card system including the same.

[0005]

According to a first aspect of the present invention, there is provided an IC card including a first surface, a second surface different from the first surface, and a connector portion for communication connection with the outside. An IC card, further comprising a first functional unit which is set on the first surface and operates by inputting / outputting a signal in a first mode via the connector unit; and a connector which is set on the second surface. A second function unit that operates by inputting / outputting a signal in the second mode via the unit, and wherein one of the first and second function units is operated during communication connection. .

Therefore, the first and second surfaces of the IC card are provided with the first function unit and the second function unit, and the desired one function unit can be operated to communicate with the outside.
The card can have two functions, for example, a memory card function on one side and a CPU card function on the other side.

According to a second aspect of the present invention, there is provided an IC card system comprising:
An IC including a control unit and a first surface and a second surface that differ depending on the direction of the surface when detachably connected to the control unit
An IC card system comprising a card, a first function unit which is set on a first surface and operates by inputting / outputting signals in a first mode with a control unit, and a control unit which is set on a second surface. And a second functional unit that operates by inputting and outputting signals in the second mode, and when the IC card is connected to the control unit, a desired one of the first and second functional units Is configured to operate.

Therefore, the IC card is connected to the control unit, and one of the first and second function units set in the IC card operates by inputting and outputting signals to and from the control unit. Two functions can be operated for one IC card while inputting and outputting signals to and from the control unit. Therefore, one IC card can function as a memory card and a CPU card accessed by the control unit. As a result, the number of IC cards used can be reduced, card management can be simplified, and costs can be reduced.

According to a third aspect of the present invention, in the IC card system according to the second aspect, the desired one of the functional units coincides with the orientation of the first and second surfaces at the time of connection. It is configured to be a functional unit set on the surface.

Therefore, the user operates the desired function of the plurality of functions provided in the IC card only by matching the direction of the surface when connecting the IC card to the control unit with the surface on which the desired function unit is set. be able to.

According to a fourth aspect of the present invention, in the IC card system according to the third aspect, when each of the first and second surfaces of the IC card coincides with the direction of the surface at the time of connection, the IC card system has its own. It is configured to output a signal specifying the surface to the control unit.

Therefore, the control unit is provided with a signal for specifying the direction of the surface of the connected IC card. Based on the signal, the control unit can promptly shift to processing relating to a desired functional unit on the IC card. The processing efficiency in is improved.

The IC card system according to claim 5 is
The system according to any one of claims 2 to 4, wherein the control unit is configured to, when the IC card is connected, supply a signal indicating that the IC card is connected.

Therefore, the control unit is provided with a signal indicating that the IC card is connected only when the IC card is connected.
Attempts to input and output signals to and from the card are prevented, and useless access to the IC card by the control unit is avoided, thereby improving processing efficiency.

The IC card system according to claim 6 is the system according to any one of claims 2 to 5,
The first and second functional units are configured to have the same function.

Therefore, since different data can be set in the first and second function units, the number of IC cards used can be reduced by half, compared with the case where only one type can be set even with the same function in the past. Management is easier and costs are reduced.

According to a seventh aspect of the present invention, there is provided an IC card system comprising:
In the IC card system according to any one of claims 2 to 6, the first and second functional units are configured to have different functions.

Therefore, it is possible to set a plurality of different functions with one IC card, so that the number of cards used can be reduced as compared with the conventional case, card management can be simplified, and costs can be reduced.

An IC card system according to claim 8 is
8. The IC card system according to claim 2, further comprising a connector unit having a plurality of terminals between the control unit and the IC card for inputting and outputting signals in the first and second aspects. A plurality of terminals are provided so as to be shared by the signal input / output of the first and second aspects.

Therefore, since the terminals for signal input / output are shared by the first and second functional units, the signal input / output between the IC card and the control unit is performed even though the IC card has a plurality of functions. An increase in the number of terminals for output is suppressed, and the IC card and the system itself can be miniaturized.

[0021]

Embodiments of the present invention will be described below with reference to the drawings. In this embodiment, in order to give teaching data of various work procedures to the autonomous mobile work robot, an IC card that can be accessed on both sides is mounted on the robot, and the control unit on the robot side mounts the mounted IC card. It is configured to access while recognizing a surface. In the present embodiment, the IC card is a single-function type having the same function on the front surface (hereinafter referred to as surface A) and the back surface (hereinafter referred to as surface B), such as a memory card or a CPU card. , A side and B
Each side has a different function, for example, one side is a memory card and the other side is roughly classified into a multiple function type having a plurality of functions such as a CPU card.

FIG. 1 is a diagram schematically showing a signal input / output relationship via a connector between a single-function type IC card and a robot side accessing the IC card according to an embodiment of the present invention.

FIG. 2 shows an IC according to an embodiment of the present invention.
FIG. 3 is a diagram illustrating a mode in which a card is mounted on a robot side. In FIG. 2, the IC card 1 has an A surface and a B surface, and a seal 3 is attached to each surface in order to identify a corresponding surface and to clearly indicate the surface. The IC card 1 has a receptacle connector 2 including electrical connection pins A1 to A5 when the A side is used and electrical connection pins B1 to B5 when the B side is used. When the IC card 1 is mounted on the robot side, the IC card 1 is inserted into the robot side, and the connection pins of the receptacle connector 2 and the corresponding pins of the electrical connection pins P1 to P10 of the robot side plug connector 4 are electrically connected. It will be in a sufficient contact state.

In FIG. 1, the circuit on the robot side includes a plug connector 4 on the robot side and a card control unit 6 comprising an MPU and the like for the interface and control with the IC card 1, and the circuit on the IC card side has a receptacle connector 2 for the interface with the robot. And memory 5
including. In the IC card shown in FIG. 1, between the A side and the B side (the control unit 6)
A signal of ground potential (GND) for detecting a surface accessed by the IC card 1 and determined by the direction of the surface when the IC card 1 is inserted into the robot side)
0 and a power supply potential (VCC) B-side signal 15, and signals for accessing the memory 5, such as a clock 11, read data 12, write data 13, and a chip select 14, are input / output. A use-side detection signal 20 corresponding to the A-side signal 10 and the B-side signal 15 of the IC card 1 and signals related to the access to the memory 5, such as a clock 21, read data 22, write data 23, and chip select. 24 is input / output. When the A side is used, the A side signal 10, clock 11, read data 12, and write data 13 indicating the use of the A side
And the chip select 14 respectively have connection pins A1 to A1.
The B-side signal 15, the clock 11, the read data 12, the write data 13, and the chip select 14 corresponding to A5 and indicating the use of the B-side when the B-side is used respectively correspond to the connection pins B1 to B5.

FIG. 3 is a block diagram of the IC card shown in FIG. 1. In the IC card 1, the memory 5 is mounted on the substrate 8 so as to be electrically connected to the receptacle connector 2.

FIGS. 4 and 5 are views showing one example of the arrangement of connection pins of the IC card side receptacle connector and the robot side plug connector according to the embodiment of the present invention, and other examples. The connection pins are arranged in one line type shown in FIG. 4 and two line types shown in FIG. 5. In each case, the type of input / output signal at each connection pin depends on the surface used by the IC card 1. Are arranged so as to be the same. 4 and 5
In each case, the correspondence of the connection pin when using the A side is A
1-P1, A2-P2, A3-P3, A4-P4, and A5-P5, and B1-P1, B2-
P2, B3-P3, B4-P4 and B5-P5.

FIGS. 6A to 6C are diagrams for explaining the used surface detection signal of FIG. The level of the used surface detection signal 20 is 0 when the A surface of the IC card 1 is used.
When the B side is used, it is indicated by the B side signal 15 that VCC is set. Therefore, the card control section 6 can detect the direction of the inserted surface of the IC card 1 based on the level of the used surface detection signal 20, that is, the used surface.

FIG. 7 is a diagram showing a memory map in a case where the access area of the memory of the IC card of FIG. 1 is changed according to the use surface. In FIG. 7, 1 Mbit of the memory 5
Is divided into a memory area 51 accessed when the A side of the IC card 1 is used and a memory area 52 accessed when the B side is used. The chip select 24 is output so that the access areas are different. Therefore,
Since the area of one memory 5 can be shared by the side A and the side B, space saving on the substrate 8 for the IC card 1 is achieved.

The access address of the memory 5 is set to an IC
If the same address is accessed for both the side A and the side B when not changed depending on the use surface of the card 1, the user can insert and use the IC card 1 on the robot side without worrying about the use surface.

FIGS. 8 (a) to 8 (c) and FIGS. 9 (a) and 9 (b) show that the card control unit shown in FIG. 1 supplies the card control unit 6 to confirm that the IC card is inserted. FIG. 7 is a diagram for explaining a card insertion confirmation signal to be issued. In these figures, only the combined use of the above-described used surface detection signal 20 and the card insertion confirmation signal 40 for detecting the presence or absence of card insertion will be described. For convenience, the connection pins are A1-P1 and Assigned as A2-P2. Therefore, in FIG. 1, if the card insertion confirmation signal 40 is input / output, the card insertion confirmation signal 4
Connection pins A6 and B6 assigned to 0 are added.

8A to 8C, a card insertion confirmation signal 40 of the VCC level is output from the IC card 1 side. The level of the card insertion confirmation signal 40 is 0 when not inserted, but is VCC when inserted. Therefore, the card control unit 6 determines whether the IC card 1 is inserted based on the level of the card insertion confirmation signal 40 given. Can be determined.

In FIGS. 9A and 9B, a card insertion confirmation signal 40 is created on the robot side using the used surface detection signal 20 and an OR circuit. As shown in the figure, the level of the card insertion confirmation signal 40 is 0 when not inserted, and V when inserted.
CC.

As described above, by using the card insertion confirmation signal 40, unnecessary access when a card is not inserted and a malfunction due to the unnecessary access are prevented. 9A and 9B, the number of output signal lines from the IC card 1 can be reduced as compared with the cases of FIGS. 8A to 8C.

FIG. 10 is a flowchart of a process for accessing a single-function type IC card by the card control unit of FIG. FIG. 10 shows access processing to the IC card 1 by an MPU (not shown) of the card control unit 6 when the IC card 1 has a single function as a memory card.

First, the card insertion confirmation signal 4 is output by the MPU.
0 is read (S1), and it is determined whether the IC card 1 is inserted based on the level of the card insertion confirmation signal 40 (S2). When no card is inserted (NO in S2), a series of processes is terminated. When a card is inserted (YES in S2),
The used surface detection signal 40 is read (S3). The use surface of the IC card 1 is set to A based on the level of the use surface detection signal 40.
If it is determined that the area is a plane (YES in S4), the memory area 51 of the memory 5 when the plane A is used is accessed (S4).
5) If it is determined that the use surface is the B surface (S
(NO at 4), the memory area 52 of the memory 5 when the B side is used is accessed (S6).

As described above, for example, the used surface detection signal 2
When the level of 0 is VCC, it is determined that the plane is A, and when it is 0, the plane is determined to be B.
Is a considerable level on either side, but FIG.
If it is confirmed in advance that the card has not been inserted, such as 0, there is no need to refer to the used surface detection signal 20 and
Without being mistaken for C card 1 being inserted,
Even if the IC card 1 can be used on both sides, it is possible to maintain the efficiency and accuracy of processing including access using the IC card.

FIG. 11 is a block diagram showing an example of I in the embodiment of the present invention.
FIG. 4 is a diagram illustrating a state in which a C card is inserted into and removed from a robot body. A card side display window 30 and a card insertion and use surface display L at a position where a user on the robot body side can confirm.
An ED 31 is provided. When the IC card 1 is inserted into a predetermined IC card insertion slot on the robot main body side, the receptacle connector 2 and the robot side plug connector 4 are electrically connected as shown in FIG. At this time, the characters on the sticker 3 (see FIG. 2) attached to the use surface of the IC card 1 inserted into the robot body side are visually confirmed from the outside through the card side display window 30. The user can determine the use surface of the IC card 1. Further, the card control unit 6 may control the card insertion and the lighting of the used surface display LED 31 based on the used surface detection signal 20 to notify the user of the used surface of the IC card 1.

When the above-mentioned IC card 1 is used together with a standardized (standardized) card such as a memory card (PC card) for a personal computer, a signal line used in the standard is used. The signal lines are arranged so as not to interfere with the signal lines used in the IC card 1. Therefore, even if a standardized card is erroneously inserted, the card is prevented from being destroyed, data from being changed, and the like.

FIG. 12 is a diagram showing a wiring pattern different from the wiring pattern of the signal lines in FIG. FIG. 12 shows a pattern opposite to the wiring pattern shown in FIG. 1, and various types of the used surface detection signal 20, clock 21, read data 22, write data 23, and chip select 24 are used in the robot side circuit. The signal lines are disposed so as to be point-symmetric with respect to the connector.

FIG. 13 is a diagram schematically showing a signal input / output relationship between a multiple function type IC card and a robot according to an embodiment of the present invention. FIG. 14 is a flowchart of a process of accessing the IC card of a plurality of functions by the card control unit 6 of FIG.

In FIG. 13, the memory 5 is provided on the side A of the IC card 1 and the CPU 7 is provided on the side B of the IC card 1.
Card 1 is a single card but a memory card and C
It has two functions of PU card. When the IC card 1 is used as a memory card, the A side signal 10 is given to the card control section 6 as the used side detection signal 20,
When used as a PU card, a B-side signal 15 is provided. Since the MPU of the card control unit 6 stores in advance information for specifying the function (memory card or CPU card) of each use surface of the IC card 1, the IC card 1 inserted based on the use surface detection signal 20 Can be determined as a memory card or as a CPU card.

The function of the used surface may be determined according to the result of reading data from the IC card 1. For example,
The data is read from the IC card 1 assuming that it is a memory card, and if the read result matches the predetermined data stored in the card control unit 6 in advance, or if the reading itself succeeds, the IC card 1 is used as a memory card. It may be determined that it functions, and if not, it may be determined that it functions as a CPU card.

A code for specifying a memory card is stored in a predetermined area in the memory 5 in advance.
A code for specifying a CPU card is stored in advance in the IC card 7. After the IC card 1 is inserted, the card control unit 6 first reads out the code and operates the inserted IC card 1 by any of the functions of the memory card and the CPU card. It may be determined whether or not it is desired to perform the control, and control may be performed by inputting / outputting a signal in accordance with the determined function.

Referring to FIG. 14, the access processing of IC card 1 by the MPU of card control unit 6 in FIG. 13 will be described. First, the card insertion confirmation signal 4 shown in FIGS. 8A to 8C or 9A and 9B by the MPU.
0 is read (S7), and it is determined whether or not the IC card 1 is inserted (S8). IC card 1 by MPU
Is determined not to be inserted (NO in S8), the series of processing ends, but if it is determined to be inserted (YES in S8), the used surface detection signal 20 is read (S8).
9) It is determined whether the use surface of the IC card 1 is the A surface (S10).

If the MPU determines that the side to be used is not the A side, that is, it is not desired to function as a memory card (NO in S10), the CPU 7 is accessed according to a predetermined procedure (S12), and the used side is set to the A side. Plane
That is, if it is determined that it is desired to function as a memory card (YES in S10), the memory 5 is accessed according to a predetermined procedure.

As described above, the MPU of the card control unit 6
First, by reading the card insertion confirmation signal 40 and then by reading the used surface detection signal 20, unnecessary access when the IC card 1 is not inserted is avoided, and the IC card 1 has a plurality of functions. However, it is possible to promptly and reliably perform a process corresponding to a desired function.

According to the present embodiment, two types of data can be accessed or two types of functions can be operated only by changing the direction (surface) of inserting the IC card 1 into the robot body. The number of IC cards used can be reduced by half, the card management can be simplified, and the cost can be reduced, as compared with the conventional system which can process one type of data (function) per IC card.

[Brief description of the drawings]

FIG. 1 shows a single-function type I according to an embodiment of the present invention.
It is a figure which shows typically the signal input / output relationship via a connector between the C card and the robot side which accesses this IC card.

FIG. 2 is a diagram illustrating a mode of mounting an IC card on a robot side according to an embodiment of the present invention.

FIG. 3 is a configuration diagram of the IC card of FIG. 1;

FIG. 4 is a diagram showing an example of arrangement of connection pins of an IC card side receptacle connector and a robot side plug connector according to an embodiment of the present invention.

FIG. 5 is a diagram showing another example of the arrangement of the connection pins of the IC card side receptacle connector and the robot side plug connector according to the embodiment of the present invention.

FIGS. 6A to 6C are diagrams illustrating the used surface detection signal of FIG. 1;

7 is a diagram showing a memory map in a case where an access area of a memory of the IC card of FIG. 1 is changed according to a use surface.

8 (a) to 8 (c) show a case where the card control unit in FIG.
FIG. 9 is a diagram illustrating a card insertion confirmation signal supplied to a card control unit to confirm that a card is inserted.

FIGS. 9A and 9B are diagrams illustrating a card insertion confirmation signal supplied to the card control unit in order for the card control unit in FIG. 1 to confirm that an IC card is inserted. .

FIG. 10 shows a single-function type I by the card control unit of FIG.
It is a flowchart of access processing to a C card.

FIG. 11 is a diagram illustrating a state in which the IC card is inserted into and removed from the robot main body according to the embodiment of the present invention.

FIG. 12 is a diagram illustrating a wiring pattern different from the wiring pattern of the signal lines in FIG. 1;

FIG. 13 is a diagram schematically showing a signal input / output relationship between a multiple function type IC card and a robot according to the embodiment of the present invention.

FIG. 14 is a flowchart of an access process to a multi-function type IC card by the card control unit of FIG. 13;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 IC card 2 and 2a Receptacle connector 3 Seal 4 and 4a Robot side plug connector 5 Memory 6 Card control part 7 CPU 20 Working surface detection signal 40 Card insertion confirmation signal In each figure, the same numerals show the same or corresponding parts.

Claims (8)

[Claims] 1. An IC card comprising a first surface, a second surface different from the first surface, and a connector unit for communication connection with the outside, wherein: A first functional unit that is set and operates by inputting / outputting a signal in a first mode via the connector unit; and a second functional unit set on the second surface via the connector unit A second function unit that operates by inputting / outputting a signal, wherein at the time of the communication connection, a desired one of the first and second function units operates.
C card. 2. A control unit, and a first surface and a second surface which are different depending on a direction of a surface when detachably connected to the control unit.
An IC card system including an IC card including a surface, a first functional unit set on the first surface and operating by inputting / outputting a signal in a first mode with the control unit; The apparatus further includes a second function unit that is set on a second surface and operates by inputting and outputting a signal in the second mode. When the connection is established, a desired one of the first and second function units is provided. An IC card system characterized in that a functional unit operates. 3. The desired one-side function unit includes the first function unit.
3. The IC card system according to claim 2, wherein the functional unit is a function unit set on a surface of the second surface and the second surface that matches a direction of the surface at the time of the connection. 4. 4. Each of the first and second surfaces includes:
4. The IC card system according to claim 3, wherein when the orientation of the surface coincides with the direction of the surface at the time of connection, a signal specifying the own surface is output to the control unit. 5. The control unit according to claim 2, wherein when the IC card is connected, a signal indicating that the IC card is connected is provided.
The IC card system according to any one of the above. 6. The IC card system according to claim 2, wherein the first and second functional units have the same function. 7. The apparatus according to claim 2, wherein the first and second functional units have different functions.
The IC card system according to any one of the above. 8. The IC card system further includes a connector unit having a plurality of terminals between the control unit and the IC card for inputting and outputting signals in the first and second aspects. 8. The IC card system according to claim 2, wherein the plurality of terminals are shared by the first and second modes of signal input / output.