JPH07230533A - ID card and ID card recognition device - Google Patents

Abstract

(57) [Summary] [Purpose] ID without using a dedicated data writer
Record the card identification data on the ID card. [Structure] A timing signal generation area 4 in which a plurality of timing marks 3 are displayed and an identification mark signal generation area 8 on which an arbitrary identification mark 7 can be drawn are provided on any surface of the ID card to provide a unique identification of the ID card. Data.
Since the timing marks 3 are displayed at equal intervals along the reading direction of the ID card, the identification data can be accurately recognized using the timing marks as a reference value even if the scanning speed changes during card reading or the card is deformed. can do. Since the identification mark 7 can be freely drawn on the identification mark signal generation area 8, the identification data can be easily recorded on the ID card.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ID card in which specific code information is recorded and an ID card recognition device for reading the information recorded in the ID card and collating the registered ID card. is there.

[0002]

2. Description of the Related Art Conventionally, this kind of ID card has been used in a wide variety of applications such as a room key for unlocking a door locked by an electronic lock and a members card. When using a card, read the unique identification data recorded on the card with a card reader, compare it with the identification data registered in advance, and if it matches, recognize it as a legitimate card and unlock it, etc. Allows control and use by members.

As for the unique identification data, it is generally known that a magnetic sheet 37 is attached to one surface of an ID card 36 as shown in FIG. 9 and magnetically recorded on the magnetic sheet 37.
Since such an ID card is recorded as magnetic data, it can record a large amount of data, but it requires a dedicated writer to record, and it is recorded that the ID card is owned in a strong magnetic field. There is a problem that the existing magnetic data is destroyed. Therefore, there are some cards in which a part of the card is embossed and the important identification data is recorded auxiliary as the emboss code 38. However, the aesthetic appearance of the card is spoiled and a dedicated device for recording the identification data is required. And Cards that have been embossed once more
There was a problem that it could not be reused.

Further, in order to solve the problem that magnetic data is destroyed by a magnetic field, an ID card in which a bar code label is attached instead of the magnetic sheet 37 and unique identification data is recorded by this bar code is also known. But JAN, E
It is necessary to code the identification data according to a predetermined code format such as AN and NW7, and similarly, a dedicated writing device is required and the amount of recordable data is limited. Further, since the barcode label is attached to the ID card so that it cannot be easily removed, the card cannot be reused.

[0005]

The problem to be solved is that a special writing device is required to record the unique identification data on the ID card, which increases the cost and makes it easy to record the identification data once. The data cannot be rewritten and the card cannot be reused.

Further, if an attempt is made to record a large amount of data by magnetic recording, the data may be destroyed in a strong magnetic field. If the data is recorded by an emboss code or a bar code instead, it will be recorded due to the size of the ID card. The point is that the amount of data that can be created is extremely limited.

[0007]

SUMMARY OF THE INVENTION The present invention is intended to solve such problems, and an ID card according to the present invention has an ID card reading direction on either side of the ID card. A timing signal generating area in which a plurality of timing marks are displayed at equal intervals along the line, and an identification mark signal generating area in which an arbitrary identification mark can be drawn at a position orthogonal to the reading direction with respect to the timing signal generating area are provided. That is the most important feature.

Further, the identification mark is drawn with erasable ink, and the identification mark signal generation area is
A plurality of timing marks are displayed separated from each other by a rectangular frame and continuous with one side in the longitudinal direction of the rectangular frame, and a start mark and a stop wider than the timing marks on both sides in the reading direction of the plurality of timing marks. The feature is that a mark is displayed.

Further, the ID card recognition device scans the ID card and optically reads the timing marks arranged at equal intervals in the scanning direction, and a timing signal displaying the timing marks. An identification mark reading section for optically reading an identification mark arbitrarily drawn in an identification mark signal generation area provided at a position orthogonal to the scanning direction with respect to the generation area, the timing mark reading section and the identification mark reading section Binarizing each of the output signals and outputting a timing mark signal and an identification mark signal, and image data composed of the timing mark signal and the identification mark signal are stored as unique identification data of the ID card. I to check the storage unit to be compared with the image data stored in the storage unit
The main feature is that the image data of the D card is compared with the collation unit for collating the ID card.

Further, the binarization circuit calculates a time width correction value so that the timing mark signals have the same cycle, and a reference cycle correction for correcting the time width of the timing mark signal and the identification mark signal by the correction value. With a section,
The identification mark reading unit optically reads the identification mark drawn by scanning on two or more pattern sense lines that cross the identification mark signal generation area, and the identification mark reading unit and the timing mark reading unit respectively It is characterized by comprising a light emitting element and a light receiving element.

[0011]

The timing signal generating area in which a plurality of timing marks are displayed and the identification mark signal generating area in which an arbitrary identification mark can be drawn are provided on either surface of the ID card, and the timing mark and the identification mark are optical. Read to form the unique identification data of the ID card.
Since the timing marks are displayed at equal intervals along the reading direction of the ID card, the identification data can be accurately recognized using the timing marks as a reference value even if the scanning speed changes during card reading or the card is deformed. be able to. Since the identification mark can be freely drawn in the identification mark signal generating area, the identification data can be easily recorded on the ID card.

The ID card recognition device scans the ID card to optically read the timing mark and the identification mark, binarizes the detection signal, and outputs image data composed of the respective binary signals to the ID card. The ID card is recognized as the unique identification data and compared with the registered image data of the ID card to collate the ID card.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows an ID card according to the present invention.
A timing signal generating area 4 and an identification mark signal generating area 8 are formed in the card body 1.

The ID card body 1 is a rectangular thin plate made of translucent plastic such as acrylic.

The timing signal generation area 4 is formed along one long side of the ID card body 1, and the pattern sense line 41 scanned by the timing mark reading section 10 described later is formed in the timing signal generation area 4.
Are supposed to pass through. Pattern sense line 4
Timing marks 3 composed of eight bars are printed on the surface 1 at equal intervals so as to be orthogonal to the pattern sense lines 41. A start mark 5 and a stop mark 6 are printed on both sides of the timing mark 3 on the pattern sense line 41 in the reading direction. The start mark 5 and the stop mark 6 are square, and the mark width across the pattern sense line 41 is the timing mark 3.
The width is wider than each mark width. The marks 3, 5, 6 in the timing signal generation area 4 are printed on the timing signal generation area 4 with opaque ink, but a sheet or plate on which the marks 3, 5, 6 are previously displayed is printed on the timing signal generation area 4. May be attached to.

The identification mark signal generation area 8 may be formed on either the front or back surface of the ID card body 1 as long as it does not overlap the timing signal generation area 4. It is advisable to display the periphery of the identification mark signal generation area 8 by the drawing area line 81 so that the identification mark 7 is not drawn by mistake in the timing signal generation area 4. An arbitrary identification mark 7 is drawn in this identification mark signal generation area 8 and the identification data of the ID card is registered. The identification mark 7 is drawn using, for example, a black opaque ink felt pen or the like.

In the identification mark signal generation area 8, two pattern sense lines 82 and 83 scanned by an identification mark reading section 11 which will be described later are crossed, and the identification mark 7 is optically read. If the identification mark 7 is drawn with erasable ink, the identification data of the ID card can be easily changed and can be reused as another ID card.

FIG. 3 shows an ID recognition device according to the present invention.
Timing mark reading unit 10 and identification mark reading unit 1
It is composed of a 1 / binarization circuit unit 15, a storage unit 20, and a collation unit 26.

The timing mark reading section 10 comprises a set of a light emitting element 12c, a light receiving element 13c, and an amplifier circuit 14c for amplifying the detection signal photoelectrically converted by the light receiving element 13c. The light emitting element 12c and the light receiving element 13c are arranged opposite to each other near the card insertion guide groove insertion opening of the ID card reader 9 so that the light from the light emitting element 12c is received by the light receiving element 13c.

The light receiving signal detected by the light receiving element 13c is converted into an electric signal and amplified by the amplifier circuit 14c connected to the output side of the light receiving element 13c.

The identification mark reading section 11 comprises two sets of light emitting elements 12a and 12b, light receiving elements 13a and 13b, and amplifier circuits 14a and 14b for amplifying the detection signals photoelectrically converted by the light receiving elements 13a and 13b. .

Light emitting elements 12a and 12b and light receiving element 13
Also, a and 13b are arranged opposite to each other near the card insertion guide groove insertion opening of the ID card reader 9 so that the light from the light emitting element is received by the light receiving element. The received light signal detected by the light receiving element is converted into an electric signal and amplified by the amplifier circuits 14a and 14b connected to the output side of the light receiving element.

Both the light emitting element 12 and the light receiving element 13 are I
The light emitting element 12a and the light receiving element 13a are arranged on a pattern sense line 82, the light emitting element 12b and the light receiving element 13b are arranged on a pattern sense line 83, and the light emitting element is arranged on a straight line orthogonal to the insertion direction of the D card body 1. 12c and the light receiving element 13c are positioned so as to scan the pattern sense line 41, respectively.

In the present embodiment, the identification mark is scanned by using two sets of the light emitting elements 12a and 12b and the light receiving elements 13a and 13b. However, the present invention is not limited to this, and one set or three or more sets for improving the recognition accuracy. The light emitting element and the light receiving element can also be used. The amount of identification data can be increased by increasing the number of pattern sense lines of the identification mark.

An LED, a cold cathode ray tube, a lamp or the like is used as the light emitting element, and an image pickup element such as a photodiode, phototransistor or CCD is used as the light receiving element.

The binarization circuit section 15 comprises binarization circuits 15a, 15b and 15c for converting the read signal into a binary signal and a reference period correction section for correcting the time width of the binary signal.

The binarization circuits 15a, 15b and 15c convert the read signals amplified by the amplification circuits 14a, 14b and 14c into binary signals by a predetermined threshold value as shown in FIG. In the mark portion of the ID card, the light receiving element does not receive the light from the light emitting element, so that the binary signal becomes L level. On the contrary, in the non-marked space portion, the light receiving element receives the light from the light emitting element which has transmitted through the transparent substrate, so that the binary signal becomes H level.

FIG. 2 shows a read waveform (a) of the timing mark reading section 10 which scans the timing signal generating area 4 and a binary signal (b) obtained by binarizing the read waveform. In the binary signal (b), the L level is set at each position of the start mark, the timing mark, and the stop mark, and the time width is longer because the start mark and the stop mark are wider than the timing mark. Also, since the eight timing mark intervals are equal,
The periods between the timing marks also appear to be equal.

Binary signal (c) output from the binarization circuit
(D) is CP as an identification mark signal through the input port.
Sent to U.

The reference cycle correction unit comprises a cycle counter 16 for measuring the cycle of the binary signal (e), an oscillator 17, and a CPU 21 for correcting the cycle of the binary signal. If the scanning speed of the ID card changes when reading the ID card body 1 or the ID card body 1 is deformed, the time width of the read signal changes and the identification data of the ID card cannot be correctly recognized. .

The reference period correction unit is a normal reading operation,
By utilizing the fact that the binary signal (b) due to the timing mark changes at equal intervals as shown in FIG. 2, when the above abnormal reading is detected, this is detected and the cycle of the binary signal (e) is set to a normal time. The width is corrected.

FIG. 4 shows the identification mark signals (c) and (d) and the timing mark signal (e) when the scanning speed becomes slow in the middle portion of the ID card and abnormal reading is performed. It shows that the scanning speed becomes slower from the timing mark and the period t1 between the timing marks becomes longer than the reference period t.

The output of the binarization circuit 15c is the cycle counter 1
6, the cycle counter 16 counts the clock signal output from the oscillator 17 from the fall of the timing mark signal (e) (when changing from H level to L level) to the next fall, The period between timing marks is measured.

The cycle counter 16 outputs a count value to the CPU 21 each time a falling edge occurs, resets the count value, and starts counting clock signals until the next falling edge.

The CPU 21 compares the period between falling edges of the timing mark signal (e) with the reference period t based on the count value output from the period counter 16 to calculate a time width correction value between timing marks.

If the period from the third timing mark to the fourth timing mark is t1 as shown in FIG. 4, the correction value is
It becomes t / t1.

The time width of the section T corresponding to the identification mark signals (c) and (d) and the timing mark signal (e) input through the input port is compressed at t / t1. At the same time, when the cycle of the timing mark signal (e) input to the CPU 21 is different from the reference cycle t, the above correction is repeated for each section. The reference period t is assumed to be the period between the timing marks of the timing signal (e) when a normal reading operation is performed, and is determined by, for example, obtaining an average value from experimental values.

The storage unit 20 is composed of a RAM connected to the CPU 21 via a bus line. However, the storage unit is not limited to the RAM, and may be an external storage device such as a floppy disk, a CD-ROM, an optical disk, etc. connected via an interface.

The storage unit 20 receives the write command from the CPU 21, and receives the identification mark signal (c) whose time width is corrected.
The image data composed of (d) and the timing mark signal (e) is stored in the two-dimensional image memory as the identification data of the ID card as shown in FIG.

In FIG. 5, D1 is binary data of the identification mark signal (c) read by scanning the pattern sense line 82, and D2 is binary data of the identification mark signal (d) read by scanning the pattern sense line 83. Data D3 is binary data of the timing mark signal (e) read by scanning the pattern sense line 41.

Writing to the storage unit starts after recognizing the start mark 5, that is, when the data of D3 changes from "0" to "1", and ends before the data corresponding to the stop mark 6.

The collating unit 26 includes the CPU 21 and RA described above.
It comprises an M20, an output interface 22, and an external storage device 23 connected via the output interface 22.

In the external storage device 23, the identification data output from the storage unit 20 in the initial registration mode when the ID card is issued is stored as registration data.

The CPU 21 reads the ID card and the identification data temporarily stored in the storage unit 20 and the external storage device 23.
The identification data registered in is called to check both. The CPU 21 outputs a control signal to the control device 24 according to the collation result, and instructs the display device 25 to display the collation result.

The processing operation of the ID card recognizing device thus constructed will be described with reference to the flowchart of FIG.

Before reading the ID card, whether the ID card is in the "recognition mode" for collating with the already registered ID card or the "initial registration mode" for initially registering the identification data of the ID card The CPU 21 is notified by a mode setting switch (not shown) of the recognition device. (Step S1)

Next, when the ID card body 1 is inserted into the card insertion groove of the ID card reader 9 of this ID card recognition device, a micro switch (not shown) operates to detect the insertion of the ID card. As a result, the light emitting element starts emitting light, and the circuit of each block enters the read standby mode. (Step S2)

Next, when the ID card body 1 is moved along the card insertion groove, the two sets of the light emitting elements 12a and 12b and the light receiving elements 13a and 13b are connected to the pattern sense lines 82 and 8.
Read the identification mark on 3. At the same time, the light emitting element 12c and the light receiving element 13c sequentially read the start mark 5, the eight timing marks 3 and the stop mark 6 on the pattern sense line 41. The read detection signals are amplified by the amplifier circuits and then binarized by the binary circuit. (Step S3)

The cycle counter 16 measures each cycle of the timing mark signal (e) of the binary signal. C
The PU 21 compares each cycle with the reference cycle t and corrects the identification mark signals (c) and (d) binarized in step S3 and the timing mark signal (e) so as to match the reference cycle t. (Step S4)

The image data composed of the corrected identification mark signals (c) and (d) and the timing mark signal (e) is stored in the storage unit 20 as the unique identification data of the ID card.
Store in AM. (Step S5)

The CPU 21 sets the I value set in step S1.
Is it the "initial registration mode" of the D card or "recognition mode"?
Depending on whether it is "initial registration mode", the processing from step S7 onward is performed, and if it is "recognition mode", the processing from step S9 onward is performed. (Step S
6)

In the case of the "initial registration mode", the identification data stored in step S6 is stored in the external storage device 23 via the output interface 22. (Step S7)

When the storage is completed, the completion of registration is displayed on the display device 25 and the operation ends. (Step 8)

On the other hand, for the connection in the "recognition mode", the identification data registered from the external storage device 23 is called (step S9) and the identification data stored in the RAM 20 is compared in step S7. (Step S10)

If the IDs match, the ID card is recognized as a registered ID card, and a display indicating the matching is displayed on the display device 25 or the control device 24 is instructed to perform predetermined control such as unlocking of the electronic lock controlled by the ID card. (Step S11)

Further, as a result of the collation, if the combination is judged to be non-coincident, the reading operation is performed again before the operation is started. (Step S12)

FIG. 7 shows another embodiment of the ID card according to the present invention. The ID card body 30 is a rectangular light-shielding thin plate. A rectangular drawing area frame 32 representing the drawing area of the identification mark is printed on the surface of the ID card body 30. The drawing area frame 32 is formed along one side of the drawing area frame 32.
In succession, a start mark 33, eight timing marks 34, and a stop mark 35 are printed.

If the drawing area is defined by the drawing area frame 32 in this way, there is no risk that the identification mark will be accidentally drawn in the timing signal generation area 4, and the timing mark 34 will partially cover the drawing area frame 32. Since it looks like it is composed, it does not spoil the aesthetics of the ID card.

The background color of the surface of the ID card body 30 is white, and each of the marks 33, 34, and 35 is printed with a black ink whose brightness is completely different from that of white, for example.
Such reading of the ID card body 30 is performed by the light emitting element 1
The light from the ID card 1 is reflected by the surface of the ID card 2
It is detected by the light receiving element 13 arranged on the second side. Therefore, a photoreflector or the like in which the light emitting element 12 and the light receiving element 13 are unitized is used for the reading section.

FIG. 8 shows the third embodiment of the ID card, in which the timing signal generating area 40 is printed on the side surface of the ID card main body 42. By providing the timing signal generation area 40 on the side surface, the identification mark signal generation area 41 on the front surface can secure a sufficient drawing area, and the drawn identification mark overlaps with the timing signal generation area 40, resulting in an error. Also, no timing mark signal is generated.

When reading the ID card body 42,
Recognition mark reading unit 11 and timing mark reading unit 1
0s are arranged on the inner surfaces of the ID card reader, which are orthogonal to each other.

[0062]

As described above, according to the present invention, since the identification data of the ID card is optically read, the identification data is not destroyed even if the ID card is mistakenly placed near strong magnetism.

Since the identification data of the ID card can be recorded by simply drawing the identification mark on one side of the ID card,
There is no need for a dedicated writer for recording identification data when initially registering a D card.

Further, since the arbitrarily drawn identification mark is used as the identification data as the image data, it is not restricted by the amount of data information as in the case of a bar code, and cannot be reproduced, so that there is no risk of misuse.

Further, since the plurality of timing marks and the identification marks are positioned in parallel along the reading direction of the ID card, the moving speed of the ID card changes or the ID card is deformed when reading the ID card. However, the identification mark can be accurately recognized by using the timing mark as a reference.

Further, since the identification mark is drawn with erasable ink, different identification data can be recorded by erasing the identification mark, and the ID card can be reused, which is economical.

[Brief description of drawings]

FIG. 1 is a plan view of an ID card showing an embodiment of the present invention.

FIG. 2 is a signal waveform diagram in the ID card reader.

FIG. 3 is a block diagram of an ID card reader according to an embodiment of the present invention.

FIG. 4 is a waveform diagram showing a binary signal waveform.

FIG. 5 is a diagram showing a state in which identification data is recorded in a storage unit.

FIG. 6 is a flowchart showing an ID card recognition procedure.

FIG. 7 is a plan view of an ID card according to another embodiment of the present invention.

FIG. 8 is a perspective view of an ID card showing still another embodiment of the present invention.

FIG. 9 is a plan view showing a conventional ID card.

[Explanation of symbols]

 1 ID card main body 3 Timing mark 4 Timing signal generation area 7 Identification mark 8 Identification mark signal generation area 10 Timing mark reading section 11 Identification mark reading section 15 Binarization circuit section 16 Cycle counter 17 Transmitter 20 Storage section 21 CPU

Claims (8)

[Claims] 1. A timing signal generating area in which a plurality of timing marks are displayed at equal intervals along the reading direction of the ID card on any surface of the ID card, and the reading direction with respect to the timing signal generating area. An ID card having an identification mark signal generation area in which arbitrary identification marks can be drawn at orthogonal positions. 2. The ID card according to claim 1, wherein the identification mark is drawn with erasable ink. 3. The identification mark signal generation area is partitioned by a rectangular frame, and a plurality of timing marks are displayed continuously with one side in the longitudinal direction of the rectangular frame. 2 ID cards. 4. The ID card according to claim 3, wherein start marks and stop marks wider than the timing marks are displayed on both sides of the plurality of timing marks in the reading direction. 5. A timing mark reading section for scanning an ID card to optically read timing marks arranged at equal intervals in the scanning direction, and the scanning direction with respect to a timing signal generation area in which the timing marks are displayed. An identification mark reading section that optically reads an identification mark arbitrarily drawn in an identification mark signal generation area provided at a position orthogonal to the output signal of the timing mark reading section and the identification mark reading section. A binarizing circuit for converting the timing mark signal and the identification mark signal to output, and a storage section for storing image data composed of the timing mark signal and the identification mark signal as unique identification data of the ID card; Comparing the image data stored in the department with the image data of the ID card to be compared, An ID card recognizing device, comprising: a collating unit for collating. 6. The binarization circuit calculates a time width correction value so that the timing mark signals have the same cycle, and a reference cycle correction for correcting the time width of the timing mark signal and the identification mark signal by the correction value. The ID card recognition device according to claim 5, further comprising a section. 7. The identification mark reading section optically reads the identification mark drawn by scanning on two or more pattern sense lines that cross the identification mark signal generation area. Card recognition device. 8. The ID card recognizing device according to claim 5, wherein the identification mark reading section and the timing mark reading section are each composed of a light emitting element and a light receiving element.