JPH01205395A - Backup information storage system - Google Patents

Abstract

PURPOSE:To shorten the transmitting and receiving time of information to/from a storage medium by supplying the information to be written to a second storage control equipment of a second system as a backup information so as to store it in a storage device when the information is written in the storage medium by a first storage control equipment in a first system. CONSTITUTION:When an IC card 4-1 is inserted into a terminal machine 3-1, next, a connection request is sent from the terminal equipment 3-1 to an arithmetic processing computer 11. Since the communication control equipment of the computer 11 connects a CPU and the terminal equipment 3-1 after confirming that the CPU in the computer 11 is not operating, the information can be interchanged between the computer 11 and the card 4-1. Next, the computer 11 performs the collating processing of the card 4-1, and identification information read from the card 4-1 by the collating processing is sent from the computer 11 to a storing computer 21. Next, the computer 11 reads general information from the card 4-1, and performs the arithmetic processing of it, and writes it. Then, the same information as the information to be written in the card 4-1 is transmitted to the computer 21 as the backup information.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a backup information storage system for storing backup information for backing up information recorded on a portable recording medium.

[Prior Art] Generally, information recording media called magnetic cards and IC (integrated) cards have been developed.

For example, most IC cards have a nonvolatile memory and a central processing unit that controls the output of information stored in the memory from the IC card to the outside, built into the flat card.

If an IC card is subjected to excessive stress (such as bending) or vibration, the electronic components built into the IC card will be destroyed, resulting in the loss of the stored contents of the memory.

For this reason, information cannot be recorded on an IC card using an IC card.
In an information storage system that erases the data to 0, the same information (backup information) as the information stored in the IC card must be stored in a memory that cannot be destroyed, such as a magnetic disk.

FIG. 5 shows a schematic configuration of a conventional information storage system. In FIG. 5, 1 is a computer that performs arithmetic processing and storage processing for the backup data storage device 2. In FIG. The computer 1 mainly includes a central processing unit 1-1 and a communication control unit 1-2.

The communication control device 1-2 selectively selects an IC card 4 to be connected to the computer 1 from among the plurality of terminals 3.

IC cards 4 and C selected by communication control device 1-2
Information is exchanged with PIJI-1. - direction,
The CPIII-1 also stores information in the backup data storage device 2 around the timing of writing information to the IC card.

[Problem to be Solved by the Invention] However, when the number of IC cards connected to the computer 1-1 in the system increases, the processing time for storing information in the backup data storage device 2 increases, and as a result, the IC card Conventional information storage systems have had the problem that the processing time required to read and write cards is long.

This point will be explained in detail.

In order to perform backup, the storage area of the backup data storage device 2 is divided for each identification number, for example, issue number, assigned to each IC card 4.

Further, a table (directory table) is provided in the backup data storage device 2 in which information indicating the address in which the information in the storage area is written is associated with the identification number of the IC card.

The procedure for tl:PUl-1 to write backup data to this storage area is as follows.

l) Read the identification number from the currently connected IC card 4.

2) Refer to the directory table of the backup data storage device 2 and read the address where information should be written.

3) Set the format of the data to be written.

4) Execute the data write command.

5) Update the information in the directory table.

This procedure is performed every time cput-i writes information to the IC card 4 to store backup data in the backup information storage device 2. Therefore, compared to the processing time required to simply write information to the IC card 4, the write processing including backup processing requires about twice as much time. As a result, in a system having a large number of terminals 3, a problem arises in that the terminals 3 have to wait for connection with the computer 1 for a long time. Another problem with such a system is that even though data is stored in a recording medium, it places a burden on the central computer.

Therefore, the purpose of the present invention is to solve such problems,
An object of the present invention is to provide a backup information storage system capable of shortening information exchange processing between a recording medium such as an IC card 4 and a computer.

[Means for Solving the Problems 1] In order to achieve such an object, the present invention provides a plurality of recording media for storing information, and a method for writing information to each of the plurality of recording media and for writing the written information. at least one or more first systems each having a first storage control means for supplying backup information, and a storage means for storing backup information;
Features [Function] In the present invention, the present invention is characterized by comprising a second system having a second fQ control means for writing write information supplied from the control means into the storage means as backup information. When the first storage control means writes information to the recording medium in the system, the information to be written is supplied as backup information to the second storage control means of the second system, and the second storage control means stores the backup information in the storage means. Therefore, for example, storage processing of backup information is performed in parallel with processing of reading information from a recording medium, and thus,
The time required for exchanging information with the recording medium can be shortened.

[Example] Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 shows the configuration of a first embodiment of the present invention.

In FIG. 1, a dash-dotted line block 10 indicates a plurality of ICs.
This is the first system for exchanging information between the card 4-3 and the arithmetic processing computer 11. The arithmetic processing computer 11 has a communication control device, and exchanges information with the terminal device 3 connected thereto.

The terminal device 3 is located between the IC cart 4 and the host computer 11 and performs connection processing with the communication control device and information transfer processing.

A dashed-dotted block 20 is a second system for storing backup information. In the second system, the storage computer 21 receives backup information from the arithmetic processing computer 11 of the first system 10, and writes the backup information to a predetermined address in the backup information storage device 22.

The operation of the first embodiment with such a configuration will be described next.

FIGS. 2(A) and 2(8) show control procedures executed by each of the arithmetic IA embedded computer 11 and the storage computer 21 shown in the first figure.

For example, IC card 4-1 (see Figure 1) is connected to terminal 3-1.
When the terminal 3 - 1 is inserted into the computer 11 , the terminal 3 - 1 then sends a connection request 8 to the computer 11 for arithmetic processing.

The communication control device of the arithmetic processing computer 11 confirms that the central processing unit in the arithmetic processing computer 11 is not in the process of arithmetic processing, and communicates between this central processing unit and the terminal device 3.
-1, so the arithmetic processing computer 11 and I
Information exchange with the C card 4-1 becomes possible.

Next, the arithmetic processing computer 11 proceeds to the control procedure shown in FIG. 2(A) and performs a verification process for the IC card 4-1. It is well known that this verification process involves comparing the manually input password of the IC card 4-1 with a password registered in advance in the IC card 4-1, so a detailed explanation will be omitted. In this verification process, the identification information read from the IC card 4-1 is sent from the arithmetic processing computer 11 to the storage computer 21 (step A1).
.

The arithmetic processing computer 11 proceeds to a predetermined arithmetic processing procedure, for example, reads general information from the IC card 4-1 (step A2), performs predetermined arithmetic processing based on this read information (step A3), Writes to the IC card 4-1 arithmetic processing results.

Along with this writing, the same information as the information to be written to the IC card 4-1 is transmitted from the arithmetic processing computer 11 to the recording computer 21 as backup information. (Step A4).

Thereafter, each time the arithmetic processing computer 11 transmits information to the IC card 4-1, backup information is also transmitted to the recording computer 21.

Therefore, the arithmetic processing computer 11 does not need to perform control operations for storing backup information, so that the arithmetic processing time can be shortened.

When the memory processing computer 21 receives the identification information of the IC card 4-1 from the arithmetic processing computer 1,
Next, information regarding the memory area allocated to the IC card 4-1 based on the identification information, such as disk number, sector number, track number, etc., is read from the directory table, and backup information is written first. The desired memory address (address) is set (steps 81 to B2).

Subsequently, upon receiving the backup information from the arithmetic processing computer 11, the storage computer 21 writes the backup information to the set address.

Next, the recording computer 21 updates the current address to become the address of the backup information to be written next, and waits for reception of the next backup information.

In this way, the recording computer 21 repeats the steps 83 to B5, and when the arithmetic processing computer 11 sends a transmission end signal to the storage computer 21, the storage computer 21 next The directory information in the directory table is rewritten so that it becomes the address of the information to be written, and this control procedure ends.

Therefore, the storage control process by the storage computer 21 is executed in parallel with the control process by the arithmetic processing computer 11.

Next, an application of the first embodiment will be explained. FIG. 3 shows the configuration of a second embodiment of the present invention.

The second embodiment is an example in which a plurality of the first systems shown in the first figure are connected to the second system 20.

In FIG. 3, the first systems 1-1 to 1-3 each have different information processing contents. For example, the first system 1O
-1 is a bank system that handles IC cards as bank passbooks, 1st system 1O-2 is a credit system that handles IC cards as credit cards, and 1st system 10-3 handles IC cards as hospital tickets. It is a medical system.

IC in each of the first systems 10-1 to 1O-3
Backup information corresponding to the information written on the card is stored in the backup information storage device 22 in the second system 20.
The data is written under the control of the storage computer 21.

In addition, from the first system 1-1 to 1-3, the second system 2
The configuration of the information sent to 0 can be as follows. For example, as shown in FIG. 4, the system code named for each system.

The record length of the transmission information (information 4A), the backup information to be written, and the transfer end code indicating the end of the transfer information may be serially arranged.

Furthermore, in this example, since the types of information handled are different, it is conceivable that information may be written to an area other than a predetermined area of the backup information storage device 22 due to an erroneous operation or malfunction of each device.

In such a case, as is done in normal digital communication, an encryption device for encrypting backup information and a second
By providing a multiplexing device for multiplexing backup information read from the system 20, it is possible to increase confidentiality with respect to other systems.

Further, since each of the first systems 1-1 to 1-3 does not need to have a storage device for backup processing, there is an advantage that the configuration of the first system can be made smaller and simpler.

[Effects of the Invention] As explained above, according to the present invention, when information is written to a recording medium by the first storage control means in the first system, the information to be written is used as backup information and the second storage control unit of the second system uses the information to be written as backup information. supplying means to the second
Since the backup information is stored in the storage means by the storage control means, for example, the storage processing of the backup information is performed in parallel with the processing of reading information from the recording medium. The effect is that the time for exchanging information can be shortened.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of the first embodiment of the present invention, and FIG. 2(A) is the arithmetic processing computer 11 shown in the first diagram.
2(B) is a flowchart showing the control procedure executed by the storage computer 21 shown in the first figure, FIG. 3 is a block diagram showing the configuration of the second embodiment of the present invention, FIG. 4 is an explanatory diagram showing the information structure of the second embodiment of the present invention, and FIG. 5 is a block diagram showing the structure of the conventional example. 1... Arithmetic processing/storage computer, 1-1...
Central processing unit (CPU), 1-2... Communication control device, 2.22... Backup information storage device, 3... Terminal, 4... IC card, 10.10-1-1O -3... 1st system, 11.
...computer for arithmetic processing, 21...computer for storage. Honsada Akira - No.: Rider 1] Lf) Flow Now Yard 2 Diagram NE Hikaritsuki $ 2 Firepower Village Ida 1' 0 Figure l Figure 3 Home Akkei 2 Father De Ui Line's Nolf Palm Fork The theory shown in Figure 4 of Dodome, Ri/Uchi: “Adorable Computer 4 Saraki Ida + Jl Block Diagram No. 51

Claims (1)

[Scope of Claims] At least one storage medium, each comprising a plurality of recording media for storing information, and a first storage control means for writing the information into each of the plurality of recording media and supplying the written information. at least one first system, a storage means for storing backup information, and a second system for writing write information supplied from the first storage control means of each of the first systems into the storage means as the backup information. 1. A backup information storage system comprising: a second system having storage control means.