JPS6125295A - Id card reader - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Industrial Application Field The present invention provides an ID card that reads the ID card possessed by a person entering or leaving a specific area, in order to strictly check the qualifications of a person entering or leaving a specific area.
The present invention relates to a card reading device.

Structure of a conventional example and its problems FIG. 1 shows a block diagram of a conventional ID card reading device. The configuration of this conventional example will be explained below with reference to FIG. 1. In FIG. 1, 1 is a conventional ID card reading device, 2 is the main body of the reading device, 3 is a control section incorporating, for example, an 8-bit microcomputer, 4 is an operation instruction display section, 5 is a reading section, 6 is a password input section, 7 is a password storage section, and the ID card reading device 1 is connected to a host computer 9. The operation instruction display section 4 instructs the user of the ID card reader how to operate the ID card reader.

The reading section 5 is for reading the card 8. The password input section 6 is for inputting a password. The password storage unit 7 stores the I/O transmitted from the host computer 9.
It stores the password associated with the D card number. In order to conduct a strict eligibility check for people entering and leaving a specific area, it is important that the ID card number, etc. contained in the ID card cannot be read by a third party, and that the ID card cannot be copied. Among the several types of ID cards in use, there is one called contactless type, and this type of ID card is
This method uses the magnetic resonance between the D card and the reader to read the ID card number, and is an excellent method in that the ID card cannot be copied. However, in this method, the number of digits stored in the ID card is usually 7 to 8 digits, which is much smaller than the 100 digits of a general magnetic card. Therefore, no password is stored in the ID card currently in use. Therefore, when the connection with the host computer becomes abnormal and the ID card reader goes offline, or when the ID card reader is used alone, the password storage unit 5 shown in FIG. 1 is required. There was a drawback.

OBJECTS OF THE INVENTION The present invention eliminates the drawbacks of the conventional example described above, and provides an excellent ID card reading device that does not require a password storage unit even when not connected to a host converter.The present invention achieves the above objects. In order to do this, the system calculates a PIN by calculating the read ID card number according to a predetermined calculation formula and compares it with a separately input PIN, eliminating the need for a PIN storage unit. It has the advantage of being able to

DESCRIPTION OF THE EMBODIMENTS The configuration of an embodiment of the present invention will be described below with reference to the drawings. FIG. 2 shows one embodiment of the present invention.

FIG. 3 is a block diagram of the ID card reading device according to the embodiment, and FIG. 3 is a flowchart of the PIN number calculation means according to the same embodiment.

In FIGS. 2 and 3, 11 is a D card reading device according to an embodiment of the present invention, 12 is the main body of the reading device, 13 is a processing section, and 14 is an operating method for the user.

An operation instruction display section that displays two instructions for input data.

Reference numeral 15 is a reading section for reading the ID card 17, and reference numeral 16 is a password section for inputting a password. 19 is a digital input unit that converts the signal from the control unit 18 and displays it on the operation instruction display unit 14; 20 is a digital input unit that converts the signal from the PIN input unit 16 and outputs it to the control unit 18; 21 is a reading unit 15 is a card reading control section that converts the signal of the ID card 17 read and outputs it to the control section 18. 22 is a calculation section, and this calculation section 22 calculates the card number stored in the R and AM 24 according to a calculation formula stored in the ROM 2.3. 25 is the host computer computer 26
This is a communication control unit that controls communication between the control unit 18 and the control unit 18 .

Note that in this embodiment, the control unit 18. Arithmetic unit 22゜ROM2
3. The RAM 24 is composed of a micro converter, and R
The control unit 18 operates according to a program stored in the OM 23.

Next, the operation of the above embodiment will be explained. In FIGS. 2 and 3, when the ID card 17 is first inserted into the reading section 15, the reading section 15 reads the data of the ID card (step 31). The card number of the ID card is temporarily stored. Then, the control unit 18 reads the calculation formula from the ROM 23.
For example, "Card number x (1 + 1000 + 10 + 1
(step 3), and substitutes the card number stored in the RAM 24 to have the arithmetic unit 22 calculate it (step 3).
2). If the card number is "1234", the calculation formula is r1234X(1+1+2+3+4)J and 1. As a result, r13574J is obtained.

On the other hand, the password "3574" is sent from the password storage department engineer 6.
When input, it is stored in the RAM 24 via the digital input unit 20° control unit 18 (step 33).

Then, the result calculated by the calculation unit 22 is 1'-13574J
and 13574 J entered from the PIN input section 16 and stored in the RAM 24 (step 35), and when they match like this time, it is considered normal processing (step 3).
6), host converter 26 via communication control unit 25
Report to.

If the above comparison (Step 35) still does not match,
For example, when r6890J is input, a notification is sent to the host computer 26 via the communication control section 25 as abnormal processing (step 37').

In this way, the verification of the password is completed.

Note that the calculation formula in step 32 is as follows instead of step 32:
It could be something more complicated.

Effects of the Invention As is clear from the above embodiments, the present invention
Since the D-card number is calculated in accordance with a predetermined calculation formula to calculate a password and compared with a separately input password, there is an advantage that a password storage part can be made unnecessary.

[Brief explanation of drawings]

Figure 1 is a block diagram of a conventional ID card reader; Figure 2 is a block diagram of a conventional ID card reader;
FIG. 3 is a block diagram of an ID card reading device according to an embodiment of the present invention, and FIG. 3 is a flowchart showing a procedure for calculating a password according to the embodiment. DESCRIPTION OF SYMBOLS 11... ID card reading device, 12... Reading device main body, 13... Processing part, 14... Operation instruction display part, 15
...Reading section, 16..Password input section, 17.ID card, 18..Control section, 22..Calculating section, 23..
ROM. 24...RAM, 25...Communication control unit, 26...
host computer. Name of agent: Patent attorney Toshio Nakao and one other person
−゛ 5 Figure 3

Claims (1)

[Claims] It reads the card number stored on the ID card, calculates this card number using a predetermined formula, and compares the calculation result with the PIN number input by the holder.
An ID that detects whether the holder of the above ID card is legitimate.
Card reader.