JP3299876B2 - Key information management device for card-type vending machines - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a card type vending machine.

[0002]

2. Description of the Related Art In a card-type vending machine which can use an IC card, key information is collated in order to enhance security of the IC card, and then internal information of the IC card is read and written. .

The key information is unique information, and is registered in each vending machine and each IC card, and key collation is performed as follows. When reading and writing the input IC card, the first key information set in the vending machine is compared with the second key information read from the IC card, and the first key information and the second key information are compared. When a mismatch is detected, reading and writing of the internal information of the card is prohibited, and when a match between the first key information and the second key information is detected, the IC is detected.
Executes reading and writing of the internal information of the card.

In a vending machine, first key information is written in a ROM or a RAM backed up by a battery.

[0005]

However, the vending machine is disassembled, the first key information is stolen, and the counterfeit IC card is stored in the second place.
If the stolen first key information is written as the key information of the vending machine, the vending machine processes the counterfeit IC card as a legitimate IC card and pays out the goods. There is.

An object of the present invention is to provide a key information management device for a card-type vending machine which can prevent damage caused by a counterfeit card.

[0007]

Key information management apparatus according to claim 1 SUMMARY OF THE INVENTION may, upon reading and writing of the input cards, mosquitoes
Before the card is read or written, it is stored in the vending machine in advance.
It is by comparing the second key information read out from the first key information and the card that has been set, the first key information and second
A card which detects inconsistency with the key information and inhibits reading and writing of the internal information of the card, detects a match between the first key information and the second key information, and reads and writes the internal information of the card In a vending machine, a setting unit in which a valid period of key information is set is compared with a valid state set in the setting unit, and when the valid period is exceeded, the first unit is detected. A comparison unit that updates or deletes the key information is provided.The comparison unit compares the current state with the validity period set in the setting unit, and detects that the validity period has been exceeded. 1 is forcibly updated or deleted. Therefore, even if the second key information is stolen and the card is forged, the forged card cannot be used after the first key information is forcibly updated or erased.

In order to prevent a third party from using a valid card by updating or erasing the first key information, a third party's card that satisfies a predetermined condition is protected by a third party's card . By updating the second key information with new key information, it is possible to easily overcome the problem that occurs with the forced update of the first key information.

According to a second aspect of the present invention, in the key information management apparatus according to the first aspect, the setting unit sets a prescribed number of times as a valid period, and the comparing unit counts the number of times of execution of reading and writing on the card, and reads the counted number of reading and writing. The first key information is updated or deleted by comparing the number of times of execution with the specified number of times of the setting unit to detect that the number of times of reading / writing exceeds the specified number of times.

According to a third aspect of the present invention, there is provided a key information management apparatus which reads and writes a card when reading and writing the inputted card.
Before the operation, the first key information stored and set in advance in the vending machine is compared with the second key information read from the card, and the first key information and the second key information do not match. A card-type vending machine that detects the coincidence of the first key information and the second key information and executes reading and writing of the internal information of the card. A host computer that updates the first key information with new key information each time new key information distributed via a communication line is received from a host computer that manages the aggregation. Each time new key information is distributed from the vending machine, the processing unit of the vending machine updates the key information used for card verification with the new key information, so even if the key information is stolen and the card is forged, the forged card , Key information is not available since it was forced to update.

In order to prevent a well-intentioned third party from using a legitimate card by updating the key information,
For a well-meaning third-party card that satisfies a predetermined condition, by updating the key information to new key information, it is possible to easily overcome the problem that occurs with the forced update of the key information.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a key information management device according to the present invention will be described based on each embodiment. [First Embodiment] FIGS. 1 and 2 show a [First Embodiment].

The working environment of the card according to the present embodiment is as follows. An employee of a specific company carries an IC card, and the IC card is regularly used, specifically, a working time management device when leaving and leaving the office. Is reading the ID code written on their IC card to manage the employment of employees.

As shown in FIG. 1, key information D2 and internal information D3 of the prepaid amount are written in this IC card 1 in addition to its own ID code. A card-type vending machine 2 that can use an IC card 1 is configured as shown in FIG.

When the IC card 1 is input to the card reader / writer 3, the collating unit 4 generates a volatile memory [hereinafter referred to as a RAM].
The key information D1 read from 5] is compared with the key information D2 read from the IC card 1 by the card reader / writer 3.

When the collating unit 4 detects a match between the key information D1 and the key information D2, the collating unit 4 sets the card reader / writer 3
To read the internal information D3 of the IC card 1.

The prepaid amount of the internal information D3 read from the IC card 1 by the card reader / writer 3 is supplied to the sales control unit 6 as information on the deposit amount, and the sales control unit 6
Makes a sale determination by comparing the sales price with the deposit amount, and instructs the product delivery device 7 to pay out the product when it is determined that the sale is possible.

[0018] The sales control unit 6 confirms the delivery of the product.
Instructs the card reader / writer 3 to update the prepaid amount of the IC card 1, and the card reader / writer 3 rewrites the prepaid amount and returns the IC card 1 to complete one selling operation.

When the collating unit 4 does not detect a match between the key information D1 and the key information D2, no instruction to read the internal information D3 of the IC card 1 is issued to the card reader / writer 3, so that the IC card 1 I can not use it.

Key information D1 written in RAM5
Are managed by the key information management device 8. The key information management device 8 includes a setting unit 9, a clock unit 10, and a comparison unit 1.
1.

The validity period of the key information D1 is set in the setting section 9. Specifically, assuming that the date and month are set, the clock unit 10 is a clock with a calendar,
The current date is counted by counting the clock.

The comparing unit 11 compares the set date read from the setting unit 9 with the current date of the clock unit 10 in step # 2 of the flowchart of FIG. 2A, and determines that the current date has exceeded the set date. Is detected, the contents of the RAM 5 are erased in # 3. As a specific method for the comparison unit 11 to erase the contents of the RAM 5, an example in which the power supply from the backup battery 12 or the like to the RAM 5 is turned off can be cited.

When the set date is changed or new key information is set, the routine shown in FIG. 2A is interrupted and the interrupt routine shown in FIG. 2B is executed to change the initial value. You.

As described above, the key information management device 8 is
RAM of vending machine to forcibly delete contents of 5
Even if the key information D1 is stolen from 5 and a counterfeit IC card is generated, the use period of the vending machine using the counterfeit IC card can be limited until the valid period set in the setting unit 9 elapses.

By erasing the contents of the RAM 5, the legitimate IC card 1 which has been used up to now can no longer be used.
By reissuing a card in which new key information newly set in AM5 is written as key information D2, IC
The card 1 can be used.

Alternatively, when the erasing of the RAM 5 is performed based on the validity period set in the setting section 9, when the employee reads the IC card from the working time management device, the RAM 5 is written to the RAM 5 next time. The same information as the new first key information to be updated is automatically updated or deleted to the second information.

In this embodiment, the clock unit 10 is a clock with a calendar. However, the same applies to the case where the clock unit is set in the setting unit 9 and the clock unit 10 counts the clock number. Although the key information D1 is stored and held in the RAM 5, the same applies to an electrically rewritable EEP-ROM.

In this embodiment, the date or the number of clocks related to the lapse of time is set in the setting unit 9, but the number of sales is set as the validity period setting information, and the comparison unit 11 is executed by the sales control unit 6. The same applies to the case where the number of sales operations is counted each time, and the RAM 5 is erased when the actual number of sales exceeds the number set by the setting unit 9.

In this embodiment, the RAM 5 is erased. However, the RAM 5 can be replaced with another one.
In this case, the operation of writing new first key information into the vending machine by the operator can be eliminated.

In this embodiment, the date or the number of clocks related to the lapse of time is set in the setting unit 9, but the number of sales is set as the validity period setting information, and the comparison unit 11 is executed by the sales control unit 6. The same applies to the case where the number of sales operations is counted each time, and when the actual number of sales exceeds the number set by the setting unit 9, the RAM 5 is erased or rewritten with another content.

[Second Embodiment] FIGS. 3 and 4 show a second embodiment.
Embodiment] is shown. The components having the same functions as those of the first embodiment will be described with the same reference numerals. In this embodiment, the working time management device is also under the control of the host computer 14 shown in FIG.

Each of the card type vending machines 2 ₁ , 2
₂ ... 2 _N are connected to the host computer 14 via the communication line 13, and the sales computer of each vending machine is managed by the host computer 14.

A routine for executing the flowchart shown in FIG. 4 is incorporated in the host computer 14.
This is because if new key information D4 different from the key information D1 set in the RAM 5 of each vending machine and used for collation is set in the host computer 14 in advance, when the change date comes, it will be automatically set in # 4. The new key information D4 is distributed to each vending machine via the communication line 13.

Each time the vending machine receives the distribution of the new key information D4 from the host computer 14, as shown in FIG. 3, the contents of the RAM 5 used for the collation are stored in the new key information D4. A rewriting processing unit 15 is provided.

Accordingly, even if the key information D1 is stolen from the RAM 5 of the vending machine and a counterfeit IC card is generated, the new key information D4 is distributed from the host computer 14 to the usage period of the vending machine using the counterfeit IC card. Can be limited to

When the first key information D1 in the RAM 5 is updated to the new key information D4, when an employee reads his / her own IC card in the working hour management device, the IC card 1
Is automatically updated to the new key information D4.

[0037]

According to the first aspect of the present invention, the validity period of the key information is set, and the validity period set in the setting unit is compared with the state at each time, and the validity period is exceeded. Is provided, and a comparison unit that updates or deletes the first key information is provided. The comparison unit compares the current state with the validity period set in the setting unit, and detects that the validity period has been exceeded. Then, the first key information can be forcibly updated or erased. Even if the second key information is stolen and the card is forged, the forged card has the first key information forcibly updated or erased. After that, it can be made unusable, and the use period of the vending machine using the forged card can be limited.

According to the third aspect of the present invention, the processing unit updates the first key information with the new key information every time new key information distributed via a communication line is received from a host computer that performs total management. Is provided, the key information used by the processing unit of the vending machine for collation of the card is updated to the new key information every time new key information is distributed from the host computer that performs total management. Therefore, even if the key information is stolen and the card is forged, the forged card cannot be used after the key information is forcibly updated, and the use period of the vending machine using the forged card is limited. be able to.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a card-type vending machine provided with a key information management device of the present invention.

FIG. 2 is a flowchart of a main part of the embodiment.

FIG. 3 is a configuration diagram of a vending machine system according to a second embodiment.

FIG. 4 is a flowchart of a main part of the second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 IC card 2 Card type vending machine 3 Card reader / writer 4 Verification part 5 RAM 6 Sales control part 7 Commodity payout device 8 Key information management device 9 Setting part 10 Clock part 11 Comparison part 14 Host computer 15 Processing part

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Claims (3)

(57) [Claims] When reading and writing an input card ,
Pre-vending machine in a storage before the reading and writing of the card is carried out
The first key information set and set is compared with the second key information read from the card, a mismatch between the first key information and the second key information is detected, and the internal information of the card is detected. A setting in which the validity period of the key information is set in a card-type vending machine that prohibits reading and writing, detects a match between the first key information and the second key information, and executes reading and writing of the internal information of the card. Card type provided with a unit and a comparing unit for updating the first key information by detecting that the validity period has been exceeded by comparing the current state with the validity period set in the setting unit. Key information management device for vending machines. 2. The setting unit sets a specified number of times as a valid period, the comparison unit counts the number of times of reading and writing on the card, and compares the counted number of times of reading and writing with the specified number of times of the setting unit. 2. The key information management device for a card-type vending machine according to claim 1, wherein the first key information is updated or deleted by detecting that the number of times of reading / writing has exceeded a specified number. 3. When reading and writing the input card ,
Pre-vending machine in a storage before the reading and writing of the card is carried out
The first key information set and set is compared with the second key information read from the card, a mismatch between the first key information and the second key information is detected, and the internal information of the card is detected. In a card-type vending machine that prohibits reading and writing, detects the coincidence of the first key information with the second key information, and executes reading and writing of the internal information of the card, a communication line is transmitted from a host computer that performs total management. A key information management device for a card-type vending machine, comprising a processing unit for updating the first key information with new key information each time new key information distributed via the PC is received.