JPH05101229A - Non-contact card system - Google Patents

Abstract

PURPOSE:To decide the propriety of application of a non-contact card having the high security and at the same time to reduce the load of the memory capac ity at the side of a card system device. CONSTITUTION:An application qualification confirming identification code is previously stored in a RAM 11 of a non-contact card 7. A card system device 20 receives the identification code and decides the propriety of application of the card 7 to permit the application of the device 20. Then the application history data on the application time, etc., are sent to the card 7 and written in the RAM 11. Thus the outsiders are hard to know the relevant identification number and to have access to the data. Furthermore a user is required just to carry the card 7 and not required to remember the identification number. Then it is not needed either to secure a large quantity of memory capacity at the side of the device 20 for control of the application history. So that the data can be decentralized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a contactless card system for determining availability and use history management by using a contactless card that transmits and receives data using radio waves as a medium.

[0002]

2. Description of the Related Art FIG. 4 is a functional block diagram of a terminal device of a conventional office automation equipment. In FIG. 4, 41 is an output device such as a display or printer, 42 is an input device such as a keyboard, and 43 is a control of each part. The control device 44 performs a process, the storage device 44 stores data such as a processing result, and the process device 45 executes each process. FIG. 5 is a flowchart showing the operation of the terminal device of the conventional OA equipment.

Next, the operation will be described with reference to the flowchart of FIG. 5. The user logs in from the input device 42 such as a keyboard (step S11). The terminal device starts measuring the usage time when the login is performed (step S12). Next, the control device 43 requests the user to input the personal identification number, and the personal identification number is input to the input device 42.
Is input (step S13), it is determined whether or not the user can use (step S14). Confirmation of availability is OK
If so (YES in step S14), the process is accepted (step S15), and the user logs off (step S16). Upon receiving the logoff, the terminal device finishes measuring the usage time, and at the same time, the storage device 4 in the terminal device.
The usage history data such as the usage time is stored in 4 (step S17), and a series of operations is ended. Confirmation of availability is OK
If not (NO in step S14), the time measurement is ended (step S18), and the use of the terminal device is ended. Then, if the user inputs the personal identification number by mistake, the user will have to log in and start over.

[0004]

In the terminal device of the conventional OA equipment, availability determination and usage history management are performed as described above. Therefore, when determining availability, many types of OA equipment are used. In this case, a plurality of personal identification numbers must be stored, and if the personal identification number is only entered and the third person knows the personal identification number, the administrator side of the OA device can not easily know it and can easily carry it out. There is a problem that the terminal device can be accessed and internal information can be known.
Also, when managing the usage history, when a large number of people use it for a long time, a large amount of storage capacity of the storage device for managing the data is required, which makes it difficult to manage the usage history for a long time. There was a point.

The present invention has been made in order to solve the above-mentioned problems, and it is possible to judge whether or not a user with high security can use, and it is highly convenient and is necessary for managing the use history of each device. It is to provide a contactless card system that can reduce the load of a large storage capacity.

[0006]

A contactless card system according to the present invention includes a memory (RAM 11) for storing at least availability determination information and usage history management information and a transmission / reception section (modulation / demodulation section 14). ) And a card system device 20 that transmits and receives data to and from the contactless card via radio waves, and the card system device receives the availability determination information from the transmission / reception unit. , Based on this information,
Determine whether you are eligible to use the card system device,
If the user is qualified, the user accepts the usage, and after the usage, the usage history management information including the usage time is transmitted to the contactless card and written in the memory.

[0007]

In the contactless card system according to the present invention, when the user carries the contactless card, the card system device receives the availability determination information stored in the memory area in the memory of the contactless card. Whether or not the card system device can be used is determined. If the card system device is available, the card system device accepts the use from the user, and after the use, the card system device transmits the usage history management information including the usage time to the contactless card, and the card system device Write to the memory area of the internal memory.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a basic configuration diagram of a contactless card system used in a terminal of an OA device according to an embodiment of the present invention. In FIG. 1, 7 is a contactless card, and 8 is a contactless card for data exchange. , A CPU that processes and controls a contactless card, 10 is a ROM that stores a processing program, 11 is a usage qualification confirmation secret code as usage determination information and use as usage history management information RAM for storing history data in a predetermined memory area, 1
2 is a battery built in the contactless card, 13 is an input / output control circuit for controlling input / output with the card system device, 1
Reference numeral 4 denotes a modulation / demodulation unit as a transmission / reception unit that transmits / receives availability information and usage history information by A / D conversion or D / A conversion of data, and 15 is an antenna.

FIG. 2 is a functional block diagram of the card system device of FIG. 1. In FIG. 2, 1 is an output device such as a display, 2 is an input device such as a keyboard, 3 is a control device for controlling each part, Reference numeral 4 is a storage device for storing data processing results and the like, 5 is a processing device for executing each processing, and 6 is a transmission / reception device for exchanging data with the outside.

The CPU 9 of the contactless card 7 controls data transmission / reception between the contactless card and the card system device. The ROM 10 stores a program for transmitting / receiving data or the like. The RAM 11 stores a usage qualification confirmation password code for determining whether or not the card system device can be used. In addition, after using the card system device, the usage history data such as the usage time received from the card system device is stored. The transmission / reception device 6 of the card system device 20 transmits / receives data of the usage qualification confirmation personal identification code or the usage history data to / from the contactless card 7. The control device 3 performs availability determination and usage history management according to the flowcharts described below.

FIG. 3 is a flow chart showing the operation of the contactless card system of FIGS. 1 and 2. Next, the operation of this embodiment will be described with reference to FIG. First, the user logs in the card system device 20 while carrying the contactless card 7 (step S1). When the login is performed, the control device 3 of the card system device 20 starts measuring the usage time. Next, the control device 3 of the card system device 20 confirms whether or not the user's usage qualification is valid (step S2). At this time, the control device 3 of the card system device 20 controls the transmission / reception device 6 and issues a usage qualification confirmation password code request to the contactless card 7 via the radio wave 8.

The contactless card 7 carried by the user is
When this radio wave 8 is received, the CPU 9 in the contactless card 7
However, it decodes this radio wave and transmits the usage qualification confirmation password code stored in the RAM 11 via the modulation / demodulation unit 14 and the antenna 15. Control device 3 of card system device 20
The transmitter / receiver 6 receives the sent usage qualification confirmation password and confirms whether or not the card usage qualification confirmation password is correct (step S3). .. Then, the control device 3 determines whether or not the card system device 20 can be used (step S4), and if the confirmation is OK (Y in step S4).
ES), accept the user's processing (step S5), log off (step S6), and if confirmation is not OK (NO in step S4), measurement of usage time ends (step S7) and operation ends. ..

Further, the control device 3 terminates the measurement of the usage time when the user completes the processing and logs off after receiving the processing of the user. The card system device 20 transmits usage history management data such as usage time to the contactless card 7 via the transmission / reception device 6, and the CPU 9 of the contactless card 7 that has received the usage history management data sets the contactless card 7 to the contactless card. The usage history data is stored in the internal memory area RAM 11 (step S8). In this embodiment, the contactless card for transmitting and receiving data using radio waves as a medium is shown, but a contactless card for transmitting and receiving data using electromagnetic waves such as light may be used. Further, in this embodiment, in order to describe the non-contact card system, an example used in a terminal such as an OA device has been described, but the non-contact card system is a device such as a measuring instrument used only by a specific person. However, if it is a device that requires confirmation of usage qualification and management of usage history,
It can be used for any device.

[0014]

As described above, according to the present invention, a contactless card having a memory for storing availability judgment information and usage management information, and a transmission / reception section for transmitting / receiving those information, and a radio wave are used. Since it is composed of a card system device that judges availability and manages the usage history by transmitting and receiving such information, it becomes difficult for a third party to access the data by knowing the personal identification number, and safety is improved. It has the effect of increasing the cost. In addition, the user can use the card by simply carrying it, and there is no need to remember the personal identification number, which improves convenience. Further, there is no need to secure a large amount of memory capacity required for use history management on the card system device side, and there is an effect that the use history management data can be distributed in the device having a large amount of user data.

[Brief description of drawings]

FIG. 1 is a basic configuration diagram of a contactless card system used in a terminal device of an OA device according to an embodiment of the present invention.

FIG. 2 is a functional block diagram of the card system device of FIG.

FIG. 3 is a flowchart showing an operation of the contactless card system of FIGS. 1 and 2.

FIG. 4 is a functional block diagram of a terminal device of an OA device showing an example of a conventional technique.

5 is a flowchart showing an operation of the terminal device of FIG.

[Explanation of symbols]

 1 Output Device 2 Input Device 3 Control Device 4 Storage Device 5 Processing Device 6 Transmitter / Receiver Device 7 Contactless Card 8 Radio Wave 9 CPU 10 ROM 11 RAM 14 Modulator / Demodulator 15 Antenna

Claims (1)

[Claims] 1. A non-contact card having at least a memory for storing availability determination information and usage history management information, and a transmission / reception unit for transmitting / receiving the information, and transmitting / receiving data to / from the non-contact card via radio waves. When receiving the availability determination information from the transmission / reception unit, the card system device includes a card system device for performing, and based on this information, determines whether or not the card system device is qualified to use, A contactless card system characterized by accepting the use from the user if any, and transmitting the use history management information including the use time to the contactless card after the use and writing it in the memory.