JPH0845044A - Device for processing medium and method therefor - Google Patents

Abstract

PURPOSE:To automatically adjust a write side head having no read function by extracting waveform information of a medium read out by a read head and adjusting the write condition of the write head based on a waveform characteristic. CONSTITUTION:At the time of starting operation of a ticket processing device, an adjusting value is conjectured based on the previous day's processing, and head position adjusting mechanisms 19B and 19A are drive-controlled, and then adjustment of gaps and adjustment of falling angles of read and write heads 17B and 17A are executed. Then, a read track 20b and a write track 20a of a ticket 20 are read out in a prescribed amt. by the head 17B, and the waveform characteristic is extracted from the waveform information of this magnetic waveform, so that adjusting value of the heads 17B and 17A are conjectured by fuzzy control to execute the adjustment processing of the heads 17B and 17A. By this method, the write side head can automatically be adjusted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is incorporated in, for example, an automatic ticket vending machine used in station service and an automatic ticket gate to write and read magnetic information on a recording medium such as a ticket or a commuter ticket. A magnetic medium processing device equipped with a magnetic head for magnetic processing, or a magnetic head built into various automatic transaction processing devices used in banking business and magnetically processing recording media such as cards and passbooks. More particularly, the present invention relates to a medium processing apparatus such as a magnetic medium processing apparatus, and more specifically, a medium processing apparatus having a function of adjusting the read / write state of each read / write head provided in the medium processing apparatus to an appropriate state, and Regarding the processing method.

[0002]

2. Description of the Related Art Generally, the above-mentioned magnetic medium processing apparatus is provided with a read magnetic head for reading information written for checking encoding in addition to a write magnetic head.

When the above-described magnetic medium processing device is used for magnetic processing of a ticket in an automatic ticket gate for station affairs, for example, since it is frequently used, a magnetic head and a member (pad roller or the like) facing the magnetic head are used. Since the relative position deviates from the proper position in a relatively short period, it is necessary to adjust to the proper position.

This adjustment is executed by the maintenance staff each time, and the adjustment method is to judge whether or not the reference ticket is passed through the automatic ticket gate and whether it can be read well.

According to this method, since it is judged only by the readability, there is a problem that it cannot be said that the accuracy is sufficient. Further, since the operation of the automatic ticket gate is stopped during the adjustment, the operating rate is high. When there are many automatic ticket vending machines of the above-mentioned example, there is a problem that it is necessary to secure a large number of skilled maintenance personnel.

Further, in the adjustment of the magnetic medium processing device described above, that is, in the proper position adjustment between the write magnetic head and the read magnetic head, in the case of the write magnetic head, this head originally performs the write processing. The waveform written by the head cannot be read by the head itself, so that the head position cannot be estimated, and as a result, there is a problem that adjustment cannot be performed.

[0007]

In view of the above-mentioned problems, the present invention enables adjustment of a write-side head that does not have a read function in the write head and the read head, and the write and read states. To provide a medium processing device and a processing method thereof which can be adjusted with high accuracy, can be used with data during operation of the device as data for adjustment and can be adjusted with higher accuracy, and can be automatically adjusted. With the goal.

[0008]

According to a first aspect of the present invention, there is provided a medium processing device comprising a write head for writing information on a medium and a read head for reading information from the medium. Based on the adjusting means for adjusting the writing state of the head, the waveform characteristic extracting means for extracting the waveform characteristic from the waveform information of the medium read by the reading head, and the waveform characteristic extracted by the waveform characteristic extracting means, the writing is performed. A medium processing device comprising: a control unit that drives and controls the adjusting unit to adjust the writing state of the head to an appropriate state.

According to a second aspect of the present invention, there is provided a medium processing device comprising a write head for writing information on a medium and a read head for reading information from the medium, wherein a write state of the write head is adjusted. Writing side adjusting means,
Read side adjusting means for adjusting the reading state of the read head, waveform characteristic extracting means for extracting the waveform characteristic from the waveform information of the medium read by the read head, medium recording a predetermined waveform, and the medium Based on the waveform characteristics read by the read head, the read side adjusting means is drive-controlled to adjust the read state of the read head to a proper state, and after this adjustment, the medium on which the write is performed by the write head is performed. The read head reads the waveform information, and based on the waveform characteristic extracted from the waveform information by the waveform characteristic extracting means, the write side adjusting means is driven and controlled to bring the write state of the write head into an appropriate state. It is a medium processing device provided with a control means.

According to a third aspect of the present invention, there is provided a medium processing device comprising a write head for writing information on a medium and a read head for reading information from the medium, wherein the write state of the write head, or Adjusting means for adjusting at least one of the reading states of the read head, waveform characteristic extracting means for extracting the waveform characteristic from the waveform information of the medium read by the read head, and recording predetermined information used by the user. Based on the medium, the storage means for storing the waveform characteristic extracted by the waveform characteristic extraction means from the waveform information read by the read head from the medium used by the user, and the distribution of the waveform characteristic stored by the storage means, A controller for driving and controlling an adjusting means for adjusting at least one of the write state of the write head and the read state of the read head to an appropriate state. Characterized in that it is a medium processing apparatus provided with and.

According to a fourth aspect of the present invention, in addition to the first, second or third aspect of the present invention, the medium is a magnetic recording medium, and the read head and the write head are magnetic heads. It is a processing device.

According to a fifth aspect of the present invention, there is provided a medium processing device comprising a write head for writing information on a medium and a read head for reading information from the medium, wherein the write state of the write head is adjusted. Writing side adjusting means,
Read side adjusting means for adjusting the reading state of the read head; waveform characteristic extracting means for extracting the waveform characteristic from the waveform information of the medium read by the read head; and a specific medium recording a predetermined waveform, Based on the waveform characteristics read by the read head from the specific medium, the read side adjusting means adjusts the read state of the read head to an appropriate state, and after this adjustment, another medium in which writing is executed by the write head. According to the waveform information extracted from the waveform information by the waveform characteristic extracting means, the write side adjusting means adjusts the write state of the write head to an appropriate state.

According to a sixth aspect of the present invention, there is provided a medium processing device comprising a write head for writing information on a medium and a read head for reading information from the medium, wherein the write state of the write head, or Adjusting means for adjusting at least one of the reading states of the read head, waveform characteristic extracting means for extracting the waveform characteristic from the waveform information of the medium read by the read head, and recording predetermined information used by the user. And a storage unit for storing the waveform characteristic extracted by the waveform characteristic extraction unit from the waveform information read by the read head from the medium used by the user, based on the distribution of the waveform characteristic stored by the storage unit. And a medium processing method for adjusting at least one of the write state of the write head and the read state of the read head to an appropriate state by an adjusting means. Characterized in that there.

[0014]

According to the first aspect of the present invention, when the read head reads the waveform information of the medium, the waveform characteristic extraction means extracts the waveform characteristic from the waveform information, and the control means adjusts based on this waveform characteristic. The writing state of the writing head is adjusted and controlled to a proper position by means. According to the second or fifth aspect of the present invention, when the read head reads the waveform information of the medium on which a predetermined waveform is recorded, the control means determines the read state of the read head by the read side adjusting means based on this waveform characteristic. After the adjustment, the read head reads the medium written by the write head, the waveform characteristic extracting means extracts the waveform characteristic from the waveform information, and the control means performs the adjustment based on the waveform characteristic. The writing side adjusting means adjusts and controls the writing state of the writing head to an appropriate position.

According to a third or sixth aspect of the present invention, the waveform characteristic extracting means extracts the waveform characteristic from the waveform information read by the reading head from the medium used by the user, and stores it in the storage means. The control means adjusts the write or read state of the write head or the read head to the proper position by the adjusting means based on the stored distribution of the waveform characteristics.

According to a fourth aspect of the present invention, the operation of the second or third aspect of the invention is executed by a magnetic recording medium and a magnetic head.

[0017]

According to the first aspect of the present invention, the waveform characteristic is extracted from the waveform information read by the read head from the medium, and the state of the write head can be estimated from the waveform characteristic.
Since the writing state of the writing head is adjusted to an appropriate position in response to the estimation, extremely high adjustment accuracy can be obtained as compared with the conventional method in which the adjustment is performed simply by determining whether or not the data is read. Moreover, this adjustment is only for transporting the ticket, does not require skill, and the work can be automatically adjusted.
Work is simplified.

In addition to the above-mentioned effects, the invention according to claim 2 or 5 of the present invention, in addition to the above-mentioned effect, first adjusts the state of the read head appropriately with the waveform information read from a specific medium by the read head, and then writes. The waveform characteristics are extracted from the waveform information read by the read head from the medium written by the head, the state of the write head is estimated from this waveform characteristic, and the write state of the write head is adjusted to the proper position according to the estimation. Since it is adjusted to, the influence of the read head can be removed, and more accurate adjustment can be performed.

According to the third or sixth aspect of the present invention, when the waveform characteristic is extracted from the waveform information read from the medium used by the user and the distribution of the waveform characteristic is obtained, the write head or The write or read state of the read head can be estimated, and the write or read state of the write head or and read head is adjusted to the proper position in response to that estimation, so adjustments can be made in a more practical manner and more effective. Can be adjusted. Moreover, since the waveform information is obtained from the medium used by the user, it is not necessary to prepare a special ticket, and since this adjustment does not require maintenance personnel, unattended fully automatic adjustment can be performed.

The invention according to claim 4 of the present invention can effectively exhibit the above-mentioned effects in a medium processing device constituted by a magnetic head.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings. The drawing shows a ticket (medium) processing device which is built in an automatic ticket vending machine for station service and records information for various issued tickets.

In FIG. 1, a bill feeding portion (not shown)
The ticket delivered from is conveyed to the discharge port 11 side by the conveying line 10. The above-mentioned transport line 10 is configured by a transport belt, a transport roller, and a motor 12 that drives these, and the branch transport line 13 performs the collection of tickets via an appropriate sorting mechanism.

A write magnetic head 17A for magnetically recording information on a ticket and a read magnetic head 17B for reading the written information to check the written information are arranged on the upper side of the above-mentioned transport line 10. Is pad roller 1
8 and 18 are installed opposite to each other.

Then, these magnetic heads 17 (17
A, 17B) are magnetic heads 17 and pad rollers 1
Head position adjusting mechanism 1 for adjusting the relative position with respect to
9 (19A, 19B). S1, S2 in the figure
S3 is a sensor for detecting the arrival of a ticket, which is the sensor S1.
Detects the drive timing of the transport line 10 upon detection of a ticket, and the sensors S2 and S3 acquire the timing of their magnetic processing.

2 and 3 show the above-mentioned magnetic beds 17 (1).
7A, 17B) and a pad roller 18 for adjusting a relative position between the pad roller 18 and the head position adjusting mechanism. The mechanism includes a gap adjustment between the magnetic head 17 and the pad roller 18 and an inclination angle adjustment. First, the gap adjusting mechanism will be described. This gap adjustment is adjustment of a gap (gap) between the magnetic head 17 and the pad roller 18.
The magnetic head 17 is fixed to the fixed wall 30 and has two cores 17a and 17a.

The pad roller 18 is formed by a tubular portion 18a and two pad portions 18b, 18b fitted to the tubular portion 18a, and is rotatably supported by a support shaft 31. Support shaft 3 mentioned above
The base end portion of 1 is fixed to the free end portion of the arm 32, and the base end portion of the arm 32 is rotatably supported by an eccentric shaft portion 34 formed on the inner end side of the rotating shaft 33.

The rotating shaft 33 has the central portion fixed to the fixed wall 3.
It is rotatably supported by a support cylinder 35 fixed to 0, and the eccentric shaft portion 34 is formed eccentrically from the axis of the rotation shaft 33, so that the rotation shaft 33 rotates. By moving, the vertical position of the axial center position of the eccentric shaft portion 34 moves, and the vertical movement amount becomes the adjustment amount of the gap between the magnetic head 17 and the pad roller 18.

In order to rotate the rotating shaft 33, the worm gear 36, the worm 37 meshing with the worm gear 36, and the first motor for rotating the rotating shaft 33 in the forward and reverse directions are provided on the outer end side of the rotating shaft 33. 38, a slit disc 40 is fixed to the worm shaft 39, and a rotation sensor 41 for detecting the slit of the slit disc 40 to detect the rotation amount thereof and the gap adjustment amount is provided. There is.

Next, the tilt angle adjusting mechanism will be described. This tilt angle adjustment is adjustment of the position where the gap position of the magnetic head 17 and the axial center of the pad roller 18 oppose each other.
In order to adjust this, the axis of the pad roller 18 is tilted with respect to the gap position of the magnetic head 17, and the gap position of the magnetic head 17 and the pad roller 18 are adjusted.
When the facing position of the pad roller 18 and the axial center of the pad roller 18 are normal, the tilt angle is zero, and the axial center of the pad roller 18 deviates to one side with respect to the gap position of the magnetic head 17. The deviation amount is a tilt angle, and the above-mentioned deviation is one side and the other side, for example, there are two directions, that is, the upper side and the lower side in the reading direction. Therefore, the inclination angle is a plus side and a minus side.

Explaining the tilt angle adjusting mechanism described above, a plate 42 is connected to the inner end of the support shaft 31 of the pad roller 18, and this connection is a long hole 43 formed in the vertical direction of the plate 42. By engaging with, the tilt angle can be adjusted even if the pad roller 18 moves in the vertical direction (gap adjustment). Plate 4 above
The boss portion of the worm gear 44 is fixed to the lower end of the worm gear 2, and the worm gear 44 is rotated in the forward and reverse directions to rotate the plate 42 in the forward and reverse directions (plus side and minus side). , The tilt angle of the pad roller 18 is adjusted.

The above-mentioned worm gear 44 is rotatably supported by a fixed shaft 50, and a worm 45 meshes with the worm gear 44, and the worm 45 rotates in the forward and reverse directions. The motor 46 is connected. Also,
A slit disk 48 is fixed to the worm shaft 47, and a rotation sensor 49 for detecting the slit of the slit disk 48 to detect the rotation amount thereof and the gap adjustment amount is provided.

Therefore, the adjustment of the gap in the adjustment of the relative position between the magnetic bed 17 and the pad roller 18 is
The eccentric shaft portion 3 of the rotary shaft 33 is rotated by rotating the first motor 38 in the forward and reverse directions.
By changing the eccentric position of 4 up and down, the pad roller 18 can be moved up and down to adjust the gap, and this adjustment amount can be taken out by the rotation sensor 41.
Further, in the tilt angle adjustment, the second motor 46 is rotated in the forward and reverse directions to change the inclination of the plate 42 to the plus side or the minus side, thereby moving the pad roller 18 back and forth in the reading direction side and tilting. The angle can be adjusted, and this adjustment amount can be taken out by the rotation sensor 49.

FIG. 4 shows the configuration of the control circuit of the ticket processing apparatus. The CPU 60 drives and controls each circuit device in accordance with the program stored in the ROM 61, and the RAM 62 stores necessary information.

The transfer control circuit 63 is the transfer line 1 described above.
0, drive control of the branch transfer line 13, and the magnetic processing circuit 6
Reference numeral 4 denotes a drive control of the above-mentioned magnetic head 17 (17A, 17B), and head position adjusting circuit 65 is a drive circuit for the above-mentioned head position adjusting mechanism 19 (19A, 19B). The first and second motors 38 and 46 shown are drive-controlled to adjust the gap and the tilt angle, and the signals from the rotation sensors 41 and 49 are output. Sensor S1,
Driving of S2 and S3 is controlled by a driver circuit 66, and each element 63, 64, 65, 66 is an input / output control circuit 6
It is connected to the CPU 60 via 7.

FIG. 5 shows definitions of five characteristic quantities (waveform characteristics) extracted from the waveform information read by the magnetic head 17B. REG1: As shown in FIG. 5 (a), when the read information is a binary signal of "0" and "1", the linear approximation of the linear approximation line A to the upper side of the "0" pattern contour of the read waveform is performed. The coefficient value of the term. In extracting the above-mentioned contour line,
The information of the extreme value B of each waveform is taken out, and the coefficient value is calculated by this. It should be noted that the integrated value of each waveform may be used, and when the extreme value B or the integrated value is used, it has a feature of reducing the required memory amount. MAXP: As shown in FIG. 5B, the average value of the upper MAX position and the lower MAX position of the read waveform. DEV1: Standard deviation value above the "0" pattern contour of the read waveform. REG2: Coefficient value of the quadratic term of the quadratic approximation curve with respect to the upper side of the "0" pattern contour of the read waveform. OUT: As shown in FIG. 5B, the larger value of the (Max-Min) / Mean values above and below the read waveform (indicating the unevenness of the waveform).

The above-mentioned characteristic quantities REG1 and MAXP are for detecting the tilt angle, specifically for detecting the front droop and back droop of the read waveform, and the front droop of the read waveform is the card. When one track of the magnetic stripe is read from the beginning to the end, the output on the front side is weak, and the backward droop indicates that the output on the back side is weak. And REG1 has the feature that the tilt angle can be detected most effectively. The aforementioned feature quantities DEV1, R
EG2 and OUT are for gap detection, and DEV1 can detect the gap most effectively.

FIGS. 6 and 7 are membership functions of the antecedent part in the fuzzy inference of each feature amount, and FIG. 6 (a, b)
Is a membership function of MAXP and REG1 used for tilt angle determination, and FIG. 6C, d, and e are membership functions of feature quantities DEV1, REG2, and OUT used for gap determination, and FIG. , B) are the antecedent membership functions of the tilt angle and the gap. FIG. 8 shows the membership function of the consequent part in fuzzy inference.
8A shows the consequent part of the tilt angle, and FIG. 8B shows the consequent part of the gap.

FIGS. 9, 10, 11, and 12 show fuzzy inference rule maps, and FIG. 9 shows a tilt angle inference A, which constitutes inference without using gap information, and
FIG. 10 shows the gap reasoning A, which also constitutes the reasoning without using the tilt angle information. On the other hand, FIG. 11 shows the tilt angle inference B, which uses the gap information to construct the inference, and FIG. 12 shows the gap inference B, which uses the tilt angle information to construct the inference. Then, FIGS.
The membership function No. 2 and the rule map are stored in the RAM 62 shown in FIG.

When the adjustment amount is given based on the inference result, if the adjustment amount is too large, the adjustment goes too far.
In order to prevent this, a regulation value is set and adjustment is made within this value.

FIG. 13 shows the relationship between the ticket 20 for adjusting the state of the magnetic head 17, the write magnetic head 17A and the read magnetic head 17B. The ticket 20 is provided with a write track 20a and a read track 20b. Information having a normal characteristic amount (normal waveform characteristic) is magnetically recorded in advance on at least the reading track 20b. The magnetic head 17A for writing is used to adjust the ticket 20 for adjustment.
The read magnetic head 17B uses the core only on the write track 20a side of
Use both cores of b. The writing track 20a and the reading track 20b of the ticket 20 do not have to be on the same ticket, but may be formed on different tickets.

Next, referring to the flowchart of FIG.
The adjustment processing of the write magnetic head 17A and the read magnetic head 17B by the CPU 60 will be described. This adjustment is performed at the start of operation of the ticket processing apparatus (for example, at the start of one day). Therefore, the adjustment is executed based on the adjustment value result of the previous time (for example, the previous day).

When it is determined that the operation of the ticket processing device is started (step n1), the read magnetic head 17B is used.
Adjust the reading status of. For this adjustment, since the adjustment value is estimated in steps n11 and n12 in the process of the previous day, the head position adjusting mechanism 1 is based on the adjustment value.
9B is drive-controlled to adjust the gap and the tilt angle (step n2).

When the adjustment value obtained by this adjustment is within the target value, the adjustment is completed, and when it is outside the target value, the adjustment is continued so that the adjustment value is within the target value (step n3).

When the adjustment of the read state of the read magnetic head 17B is completed, the write magnetic head 17A is next operated.
The writing state on the side is adjusted (step n4), and the adjustment value is also estimated in steps n11 and n12 in the process of the previous day. Therefore, the head position adjusting mechanism 19A is driven and controlled based on the adjustment value. Then adjust the gap and the tilt angle.

When these adjustments are completed, the flag is set to "0", and when this flag "0" is determined in the next step n6, the reading magnetic head 17B causes the reading track 20b of the ticket 20 to be read. The waveform information of the magnetic waveform is collected, the flag is set to "1", and the characteristic amount (waveform characteristic) is extracted from the waveform information (step n9).

When the flag "1" is determined in step n6, the reading magnetic head 17B collects the waveform information of the magnetic waveform of the write track 20a of the ticket 20 and sets the flag "0". ", And in step n9, the characteristic amount (waveform characteristic) is extracted from this waveform information. Therefore, the extraction of the characteristic amount of the read track 20b and the write track 20a is alternately executed by the operation of the flag.

The feature amount extraction processing in step n9 is executed as follows. That is, the reading magnetic head 17B reads the reference waveform information magnetically recorded on the reading track 20b of the ticket 20, and the CPU 6 reads the waveform information.
0 is the above-mentioned five feature quantities REG1, MAXP, DEV
1, REG2, OUT are calculated and stored in a predetermined area of the RAM 62.

Further, the ticket 2 is processed in the above-mentioned step n4.
Since the predetermined ticket information is magnetically recorded on the writing track 20a of 0, this information is read by the reading magnetic head 17B, and from this waveform information, the CPU 60 causes the above-mentioned five characteristic quantities REG1, MAXP, DEV1, REG2, OU to be read.
T is calculated and stored in a predetermined area of the RAM 62. Repetitive collection is executed until a predetermined amount of collection is completed in this way (step n10).

Then, an adjustment value for adjusting the reading state of the reading magnetic head 17B is estimated from the characteristic amount (waveform characteristic) read from the reading track 20b of the ticket 20 (step n11). FIG. 15 shows some of the collected five feature quantities and an example of their distribution state. Observing the distribution status of the collection of each feature quantity, the tendency of the gap and the tendency of the tilt angle appear, and the variation The adjustment amount can be estimated from this.

In the figure, the characteristic quantities 1 and 2 are, for example, two of the characteristic quantities DEV1, REG2 and OUT,
Further, the feature amount 3 indicates one of the feature amounts REG1 and MAX described above.

Next, in the same manner as the above-mentioned estimation processing, the ticket 20 is used.
The adjustment amount for adjusting the write state of the write magnetic head 17A is estimated from the characteristic amount (waveform characteristic) read from the write track 20a of step 1 (step n1).
2).

The adjustment of the read magnetic head 17B in step n2 is adjusted by the adjustment amount estimated in step n11. Further, the adjustment of the write magnetic head 17A in step n4 is adjusted by the adjustment amount estimated in step n12 described above. Then, these adjustment processes are executed by fuzzy control. That is, REG1, MAXP, DEV1, and REG of the adjustment amounts of the five feature amounts
Of OUT, OUT, the feature amount REG1, M for tilt angle detection
The fuzzy value is calculated by the membership function shown in FIGS. 6A and 6B by AXP, and the tilt angle inference A is inferred without using the gap information in the rule map shown in FIG.

Further, by using the other feature quantities DEV1, REG2, OUT for gap detection described above, FIG.
The fuzzy value is calculated by the membership function shown in e), and the gap inference A is inferred without using the tilt angle in the rule map shown in FIG.

Further, fuzzy values are calculated by the membership function shown in FIG. 7 for the above-described inclination angle inference A and gap inference A, and the inclination angle inference B and the inclination angle are calculated using the gap information in FIGS. 11 and 12. The multi-stage inference is executed by inferring the gap inference B using information, correcting each inference result, and converging this.

[Table 1] below shows the convergence of multistage inference.

[0056]

[Table 1]

In the above [Table 1], in the first inference, the tilt angle inference A and the gap inference A calculated without using the gap information for the tilt angle and the tilt angle information for the gap described above are used.
The tilt angle is 2.0 degrees and the gap is 100 μm. Further, these inference errors have a tilt angle of 1.0 degree and the gap is 28 μm.

In the second inference, the tilt angle inference B and the gap inference B are calculated by utilizing the mutual information in the mutual inference result, and the inference error at this time is a tilt angle of 0.2 degrees and a gap of 8 μm. Suppose

In the third inference, the tilt angle inference B and the gap inference B are calculated by using the mutual information in the mutual inference result, and the inference error at this time is the tilt angle 0.0 degree and the gap 3 μm. Suppose

In the fourth inference, the tilt angle inference B and the gap inference B are calculated by further utilizing the mutual information in the mutual inference result, and the inference error at this time is the tilt angle 0.0 degree and the gap 3 μm. If it becomes, it is considered that there is no further convergence because the inference error is the same as that of the third time, and the reasoning result of the fourth time, that is, the tilt angle inference B = 1.0 degree, the gap inference B = 125 μm is due to the inference. It becomes the adjustment amount.

If multi-stage inference is performed as described above, accurate inference can be performed from a group of feature quantities having strong mutual interference, and because of fuzzy inference, the number of inferences can be small, which is an effective feature.

If the inference result is converged and the adjustment amount is calculated as described above, the adjustment goes too far when the adjustment amount is too large. Therefore, in order to prevent this, the adjustment is performed within the set regulation value. It is preferable to correct the amount.

The head position adjusting mechanism 19 shown in FIGS. 2 and 3 operates as follows. That is, the tilt angle adjustment in the adjustment of the relative position between the magnetic bed 17 and the pad roller 18 is performed by rotating the second motor 46 forward and backward to rotate the plate 4 and the plate 4.
By changing the inclination of 2 to the plus side or the minus side, the pad roller 18 is moved back and forth in the reading direction side to adjust the tilt angle, and this adjustment amount is taken out by the rotation sensor 49 to be read by the CPU 60. Entered in. Further, the gap is adjusted by rotating the first motor 38 in the forward and reverse directions to rotate the rotary shaft 3.
By changing the eccentric position of the third eccentric shaft portion 34 up and down, the pad roller 18 is moved up and down to adjust the gap, and this adjustment amount is extracted by the rotation sensor 41 and input to the CPU 60.

FIG. 16 shows a state in which adjustment is performed based on the adjustment amount determined in step n11 described above.
B, C and D are associated with the respective read waveforms A, B, C and D. By repeating the adjustment a few times in this way, it is possible to adjust to the normal region of the magnetic read waveform.

According to the above-mentioned embodiment, the adjustment of the relative position between the magnetic bed 17 and the pad roller 18 is performed by adjusting the characteristic quantities REG1, MAXP, DEV1, REG2 of the magnetic read waveform.
Since the adjustment is performed based on OUT, a good output waveform is surely obtained when the adjustment is completed, and a highly accurate adjustment result can be obtained.

That is, the magnetic head 17 and the pad roller 1
When the gap of No. 8 is adjusted by judging whether or not it can be read using a ticket or by measuring it with a gap gauge, the waveform is not always good, but by using the characteristics of the read waveform for adjustment, the read waveform The direct adjustment is made possible, and a good output waveform can be surely obtained, and highly accurate adjustment can be obtained.

Furthermore, since fuzzy inference is used for inference, the number of inferences in multistage inference can be suppressed to a small number of times, and inference time can be shortened. Further, good adjustment can be obtained regardless of the medium difference or the model difference. For example, if a method such as waveform pattern matching is used, a huge database is required,
Although media differences and model differences cannot be absorbed, good adjustments can be obtained regardless of these differences, and as a result, highly reliable adjustments can be made in a short time.

Further, the reading magnetic head 17B is used for the ticket 2.
The waveform characteristic is extracted from the waveform information read from 0, and the writing state of the writing magnetic head 17A can be estimated by this waveform characteristic (see step n12 in FIG. 14), and the writing of the writing magnetic head 17A is performed corresponding to the estimation. Since the state is adjusted to the proper position, it is possible to obtain extremely high adjustment accuracy as compared with the conventional read / write judgment and the conventional adjustment method using the gap gauge. In addition, this adjustment is performed only by transporting the ticket 20, and it can be automatically adjusted, and the adjustment work is simplified.

Further, when there is a write magnetic head 17A and a read magnetic head 17B, when the medium written by the write magnetic head 17A is read by the read magnetic head 17B and the waveform characteristics are observed, the waveform characteristics are Since it is unknown whether the write head is the write magnetic head 17A or the read magnetic head 17B, the head position is not sufficiently estimated and the adjustment cannot be performed with high accuracy. Based on the waveform information read from the ticket 20 by the reading magnetic head 17B, first the reading state of the reading magnetic head 17B is properly adjusted, and then the reading magnetic head is read from the ticket 20 written by the writing magnetic head 17A. The waveform characteristic is extracted from the waveform information read by 17B, the state of the write magnetic head 17A is estimated by this waveform characteristic, and the estimation is supported. Since adjusting the write state of the write magnetic head 17A in the proper position Te, and can remove the influence of the reading magnetic head 17B, it is more accurate adjustment.

Even if the write magnetic head 17A is adjusted without adjusting the read magnetic head 17B,
Sufficient adjustment results can be obtained.

Further, from the waveform information of the information read from the ticket issued by the automatic ticket vending machine, or the ticket used by the user (ticket, commuter ticket, coupon ticket card) if the ticket is an automatic ticket gate. When the waveform characteristics are extracted and the distribution of the waveform characteristics is obtained, the writing and reading states of the write head 17A and the read magnetic head 17B can be estimated based on this distribution, and the write magnetic head 1 corresponding to the estimation.
Since the writing and reading states of 7A and the reading magnetic head 17B are adjusted to appropriate positions, adjustments can be made according to actual conditions and more effective adjustments can be made. Moreover, since the waveform information is obtained from the medium used by the user, it is not necessary to prepare a special ticket, and since this adjustment does not require maintenance personnel, unattended fully automatic adjustment can be performed.

In the correspondence between the structure of the present invention and the above-described embodiment, the medium of the present invention corresponds to the ticket 20 of the embodiment, and the write head corresponds to the write magnetic head 17A. The read head corresponds to the read magnetic head 17B, the waveform characteristic extraction means corresponds to the configuration of the CPU 60 that processes step n9, the write side adjustment means corresponds to the head position adjustment mechanism 19A, and the read side adjustment means. Corresponds to the head position adjusting mechanism 19B, the storage means corresponds to the RAM 62, and the control means corresponds to the CPU 60, but the present invention is not limited to the above-described embodiments.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a ticket processing apparatus.

FIG. 2 is a front view of a position adjusting mechanism.

FIG. 3 is a side view of the position adjusting mechanism.

FIG. 4 is a control circuit block diagram of the ticket processing apparatus.

FIG. 5 is an explanatory diagram showing the definition of a feature amount.

FIG. 6 is a membership function of the antecedent part of the feature amount.

FIG. 7: Membership functions of the antecedent part of tilt angle and gap.

FIG. 8 Consequent part membership function of tilt angle and gap.

FIG. 9 is a tilt angle inference A rule map.

FIG. 10 Gap Inference A Rule Map.

[Fig. 11] Inclination angle inference B rule map

FIG. 12 Gap Inference B Rule Map.

FIG. 13 is an explanatory diagram showing a relationship between each magnetic head and a ticket.

FIG. 14 is a flowchart of adjustment processing.

FIG. 15 is an explanatory diagram of the distribution of the characteristic amount and the estimation of the adjustment amount.

FIG. 16 is an explanatory diagram showing an adjusted state.

[Explanation of symbols]

 17A ... Magnetic head for writing 17B ... Magnetic head for reading 18 ... Pad rollers 19A, 19B ... Head position adjusting mechanism 20 ... Ticket 60 ... CPU 62 ... RAM

Claims (6)

[Claims] 1. A medium processing apparatus comprising: a write head for writing information on a medium; and a read head for reading information from the medium, the adjusting means for adjusting a write state of the write head, and the read head. Waveform characteristic extracting means for extracting the waveform characteristic from the read waveform information of the medium, and the adjusting means for adjusting the write state of the write head to an appropriate state based on the waveform characteristic extracted by the waveform characteristic extracting means. A medium processing device comprising: 2. A medium processing apparatus comprising a write head for writing information on a medium and a read head for reading information from the medium, comprising: write side adjusting means for adjusting a write state of the write head; and the reading. Read side adjusting means for adjusting the reading state of the head, waveform characteristic extracting means for extracting the waveform characteristic from the waveform information of the medium read by the reading head, a medium having a predetermined waveform recorded thereon, and the reading from the medium. Based on the waveform characteristic read by the head, the read side adjusting means is drive-controlled to adjust the read state of the read head to an appropriate state, and after this adjustment, the waveform information of the medium on which the write is executed by the write head Is read by the read head, and the write state of the write head is set to an appropriate state based on the waveform characteristic extracted by the waveform characteristic extracting means from this waveform information. Media processing device and control means for driving and controlling the write side adjustment means in order to. 3. A medium processing apparatus comprising a write head for writing information on a medium and a read head for reading information from the medium, which is at least in a write state of the write head or a read state of the read head. An adjusting means for adjusting one of them, a waveform characteristic extracting means for extracting the waveform characteristic from the waveform information of the medium read by the read head, a medium used by the user to record predetermined information, and a medium used by the user. Based on the waveform characteristic extracted by the waveform characteristic extracting means from the waveform information read by the read head from the medium, the writing state of the write head, or the writing state of the write head based on the distribution of the waveform characteristics stored in the storing means, or A medium processing device comprising: a control unit that drives and controls an adjusting unit that adjusts at least one of the reading states of the reading head to an appropriate state. 4. The medium processing apparatus according to claim 1, wherein the medium is a magnetic recording medium and the read head and the write head are magnetic heads. 5. A medium processing apparatus comprising a write head for writing information on a medium and a read head for reading information from the medium, comprising: write side adjusting means for adjusting a write state of the write head; and the reading. The reading side adjusting means for adjusting the reading state of the head, the waveform characteristic extracting means for extracting the waveform characteristic from the waveform information of the medium read by the reading head, and the specific medium recording a predetermined waveform are provided. Based on the waveform characteristics read by the read head from the medium, the read state of the read head is adjusted to an appropriate state by the read side adjusting means, and after this adjustment, the waveform of another medium on which writing is executed by the write head. A medium for adjusting the writing state of the writing head to an appropriate state by the writing side adjusting means based on the waveform characteristic extracted by the waveform characteristic extracting means from information. Management method. 6. A medium processing apparatus comprising a write head for writing information on a medium and a read head for reading information from the medium, which is at least in a write state of the write head or a read state of the read head. An adjusting means for adjusting one of them, a waveform characteristic extracting means for extracting the waveform characteristic from the waveform information of the medium read by the read head, a medium used by the user to record predetermined information, and a medium used by the user. Storage means for storing the waveform characteristic extracted by the waveform characteristic extraction means from the waveform information read by the read head from the medium, and based on the distribution of the waveform characteristic stored in the storage means, the write state of the write head, Alternatively, a medium processing method in which at least one of the reading states of the reading head is adjusted to an appropriate state by adjusting means.