JPH03229391A - Discriminating method for coercive force of magnetic ticket form - Google Patents

Abstract

PURPOSE:To surely issue a magnetic ticket having prescribed coercive force by making a ticket vending device itself discriminate automatically the coercive force of a magnetic ticket form when the form is loaded. CONSTITUTION:A trial ticket is prepared from a loaded ticket form 1, and the specific information is encoded on the trial ticket via a magnetic head 7 with use of a prescribed writing current. Then the encoded information is read via a magnetic head 8 and it is decided whether the specific information is read or not. If so, the form 1 is decided as a magnetic ticket form having the prescribed coercive force to the prescribed writing current. If not, the form 1 except the one having the prescribed coercive force is decided. Thus a properly encoded magnetic ticket obtained with use of the form 1 having the necessary coercive force.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a method for determining the coercive force of a magnetic ticket used for a train ticket, admission ticket, numbered ticket, etc.

[Prior art]

In transportation facilities such as railways and various other facilities where automatic ticket gate systems have been introduced, necessary information is printed on a ticket that has a printed side and a magnetic recording side (herein referred to as a magnetic ticket), and is magnetically encoded. A magnetic ticket issuing device (hereinafter simply referred to as a ticket issuing device) is used. Most of the ticket issuing devices currently in use use low-coercivity tickets, generally having a coercive force of 3000e. However, low-coercivity 10,000-thousand tickets have problems such as the magnetic information being destroyed by disturbance magnetic fields from magnets used as locks for women's handbags, for example, and causing problems with automatic ticket gate systems. Recently, the use of high coercive force cards such as 27500e, which are resistant to disturbance magnetic fields, has been considered. Additionally, low-coercivity tickets and high-coercivity tickets used for railway tickets are generally encoded in different data formats. In other words, a low-coercivity ten thousand note has an information amount of NR of 28 BPI.
Although the Z-1 code data format is used, it is not particularly inconvenient if the route to which the automatic ticket gate system is applied is small. However, in automatic ticket gate systems for large-scale routes, NRZ-1 does not have enough information, so an FM code capable of 52.5 BPI of information has been adopted, and this is expected to become the mainstream in the future. Ru. However, since low-coercive force notes have been used for a long time, there will be a stock of low-coercive force notes until high-coercive force notes conflict with them. It is difficult to switch to high coercive force notes. Under these circumstances, it is inevitable that low coercive force notes and high coercive force notes will be used together for some time. The ticket issuing device also has a type that selectively loads either low coercive force ticket paper or high coercive force ticket paper, so that both low coercive force tickets and high coercive force tickets can be issued in one machine. One type is a type in which both types of ticket sheets are loaded and the type is selected and used based on the coercive force specification included in the ticket issuing command.

[Technical Division B trying to solve]

However, since conventional magnetic ticket paper only has low coercive force or high coercive force identification characters written on its packaging, etc., it is easy to identify when loading spring paper, but it is difficult to replace the ticket paper afterward. Since it is not easy to check the time, it is often the case that the type of ticket paper to be loaded is mistaken. If you make a loading mistake, the writing will be inappropriate when issuing a ticket afterward, and it will be determined as a reading mistake during an echo check.
A problem arises in which the ticket is collected. In view of the above points, the present invention allows the ticket issuing device itself to easily and automatically determine whether the magnetic ticket paper is a low coercivity ticket or a high coercivity ticket when loading the magnetic ticket paper, that is, before issuing the magnetic ticket. It is an object of the present invention to provide a method for determining the coercive force of a magnetic ticket, which makes it possible to reliably issue a magnetic ticket with a predetermined coercive force when a ticket issuing command is input.

[Means to solve the problem]

In order to achieve the above object, the method for determining the coercive force of a magnetic ticket according to the present invention involves creating a trial ticket from loaded ticket paper, transporting this on a conveyance path, and identifying specific information on the trial ticket. is encoded with a predetermined write current, and when the encoded information is read and specific information can be read, it is determined that the magnetic ticket paper has a predetermined coercive force for that write current, and the specific information cannot be read. If the magnetic ticket paper has a coercive force other than a predetermined coercive force, it is determined that the paper has a magnetic ticket having a coercive force other than a predetermined coercive force. Another feature is that the section cut from the ticket paper is used as a trial ticket for cueing when the ticket paper is initially loaded. Furthermore, if specific information is encoded in the first track of the trial ticket with a low level write current and in the second track with a high 1/bell write current, and specific information is read from the first track when reading. is characterized in that the paper is determined to be a low coercive force ticket paper, and if specific information can be read from the second track without being read from the first track, the paper is determined to be a high coercive force ticket paper. There is. Furthermore, when specific information is written to one track of the trial ticket with a low-level or high-level write current and read with a predetermined bias, if the specific information is read, a predetermined coercive force corresponding to the bias is applied. It is characterized by determining that the paper is a spring paper.

[Effect]

According to the method of the invention, based on the new loading of spring paper,
A trial ticket is created from the loaded spring paper, and the trial ticket is conveyed onto a conveyance path, and specific information is encoded on the trial ticket with a predetermined write current via a magnetic head. Subsequently, the encoded information is read via a magnetic head, and it is determined whether specific information has been read. If the spring paper can be read, it is determined that the spring paper is a magnetic ticket paper having a predetermined coercive force for a predetermined write current. If specific information cannot be read, it is determined that the paper is a spring paper with a coercive force other than the predetermined coercive force. If you use the cut piece obtained during cueing as a trial ticket, each time you load paper, it will automatically trim and align the beginning of the paper (beginning) and 1. Coercive force determination is performed at the same time. One of the encoding methods for trial tickets is to
5. With low level write current to the track. The second track is encoded with specific information using a high-level write current, and read with a predetermined bias. At this time, if specific information can be read from the first track, the paper is determined to be low coercive force ticket paper, and if specific information can be read from the second track, the paper is determined to be high coercive force ticket paper. judge. Another encoding method for trial tickets is
The method is to write specific information to one track with a low-level or high-level write current and read it with a predetermined bias. In this case, if specific information is read, it is determined that the ticket has a predetermined coercive force corresponding to that bias.

Example 1 Next, an example of the method for determining the coercive force of a magnetic ticket paper according to the present invention will be described based on the drawings. FIG. 1 is a side view schematically showing the configuration of a commonly used ticket issuing device. Reference numeral 1 denotes a spring paper wound into a roll, which is exchangeably loaded and held by a known spring paper holding means using a reel or the like. Reference numeral 2 denotes a feeding means in which spring paper manually rewound from a reel is set at the beginning of loading the spring paper, and feeds out the spring paper in predetermined amounts based on subsequent feeding commands. 3 is a cutter installed at the rear of the feeding means, and normally opens the continuous conveyance path from the feeding means to the rear, but operates every time it receives a cutting command to open the conveyance path. Cut the spring paper. Reference numeral 4 denotes a print head such as a thermal head provided behind the cutter 3, and a feed roller 6 rotated by a pulse motor 5 is provided on the opposite side of the conveyance path. 7 is a magnetic head for writing, and 8 is a magnetic head for reading. Reference numeral 9 denotes a wing operated by a solenoid 10. Normally, since the solenoid 10 is de-energized, the wing 9 opens the conveyance path and moves the ticket that has passed through the reading magnetic head 8 toward the receiving slot 11. When the solenoid 10 is energized, the wing 9 blocks the conveyance path, so that the ticket that has passed through the reading magnetic head 7 is moved toward the collection box 12. As shown in FIG. 2, the write magnetic head 7 has a driver 13 and a modulator 14 connected thereto to constitute an encoding section 7A, and the write data from the processing device 15 is transferred to the modulator 14 and the driver. The write current is converted into a write current and applied to the magnetic head 7 via the write current 13. The driver 13 includes a current switching circuit 16 for switching the write current value according to the coercive force of the spring paper, that is, depending on whether the spring paper 1 is a low coercive force note or a high coercive force note.
is connected. The switching command to the t-current switching circuit 16 includes a low coercive force spring command a and a high coercive force spring command. A high level current (IN) or a low level current (1,) is applied to the driver 13. Then, the switching command a,
b occurs when the processing device y115 operates the selection switches 16a and 16b provided in the ticket issuing device;
There may be cases where the information is automatically output based on a determination result from a coercive force determining means in the processing device 15, which will be described later. Further, as shown in FIG. 2, the reading magnetic head 8 is
The reading unit 8A is configured together with the amplifier 18 and the demodulator 19, and the output of the demodulator 19 is given to the data determining means of the processing device F15. As shown in FIG. 3, the processing device 15 includes a spring paper conveyance control means 151, a cutter control means 152, a print control means 153, a writing flow setting means 154, an encoding control means 155, and a reading control means. 156, data determination means 157, coercive force determination means 158, and storage means 1
59. The processing device 15 is connected to a ticket issuing device main body 20 which is a host device. A known coin insertion detection switch 21, a coin verification section 22, and a destination designation button group (or ticket type selection button group) 23 are connected to the ticket issuing device main body 20 as input sections, and a change ejection function is also connected to the ticket issuing device main body 20. The unit 24 is connected as an output unit, and when the power is turned on, steps 41 to 45 are executed as shown in FIG. Sometimes, the ticket issue data is edited in step 46 and the ticket issue data is transmitted to the processing device 15. On the other hand, if the ticketing conditions are not satisfied, step 48
If the process is canceled, the process ends; if the process is not canceled, the process returns to step 43. The ticket issuing data transmitted to the processing device 15 also includes data specifying the type of coercive force of the spring paper to be used. That is, the ticket issuing device main body 20 checks whether the magnetic ticket to be used on the route concerned is a low coercive force ticket or a high coercive force ticket based on the input destination data, and also attempts to issue the magnetic ticket from the memory contents of the storage means 159. The printing data and encoded data for making the ticket valid from the departure station to the destination station are edited, and the paper designation data and editing data specifying the coercive force are transmitted to the processing device 15. The processing device 15 has the above-mentioned respective means 151 to 159, and is also connected to a spring paper loading detection switch 25. In addition to the function of performing ticket issuing processing based on a ticket issuing command from the ticket issuing device main body 20 using each of the above-mentioned means and the spring paper loading detection switch, in addition to the function of performing ticket issuing processing based on a ticket issuing command from the ticket issuing device main body 20, in order to implement the method of the present invention, the spring paper loading detection switch is used. It has a new function to perform spring paper coercive force determination processing. The processing device 15 processes the fifth
As schematically shown in the figure, whether or not ticket issuing data is received from the ticket issuing device main body 20 (step P1) or whether the spring paper loading detection switch 25 is turned on from the OFF state (step Pz) is constantly monitored. do. If the answer is yes in step P1, then the ticket issuing routine X is executed, and as will be described later with reference to FIG. This information is printed and a ticket with predetermined data encoded is issued. However, in the ticket issuing process, the write current is set according to the type of coercive force of the loaded spring paper, and the ticket issuing device
The difference from the conventional method is that the spring paper selection is performed based on the ticket issuing command. In addition, if step 2 is affirmative, that is, each time paper is loaded, a spring paper coercive force determination processing routine Y is executed, and as will be described later based on FIG. Another difference from the conventional method is that the coercive force of the loaded spring paper is determined and stored by controlling the related means. The main points of the ticket issuing processing operation shown in FIG. 6 will be explained below. When the processing device 15 receives the ticket issuing data, that is, the editing data and the ticket paper designation data from the ticket issuing device main body 20, in step 601, it selects a spring paper with a predetermined coercive force based on the ticket paper designation data, and Move the spring paper to the loading position. Then, in steps 602 to 604, the spring paper is fed by a predetermined amount l, a ticket of standard size is created by cutting, and printing is performed on the transported ticket. Next, in step 605, a write current corresponding to the coercive force of the spring paper is set based on the paper designation data received from the host device 20, and the switching command a or b is sent to the current switching circuit 16 based on the setting. Output to. Therefore, in response to the customer's destination designation using the destination designation button group 22, a spring paper having a predetermined coercive force is selected, and the encoding unit 7A encodes data with a write current corresponding to the coercive force of the spring paper. (step 606). In the subsequent steps 607 to 610, the encoded data is read, checked, and judged whether the data is good or bad, and if the data is good, the ticket is transported to the receiving side without operating the solenoid 10 and the ticket is issued. exit,
If the data is good, operate the solenoid 10 to convey the ticket to the collection side and collect it. Step 611 > If the number of defective tickets issued has not reached 2, execute again from step 602 and make the number of defective tickets 2. If this happens, the ticket issuing process is terminated and a warning is issued. Next, the coercive force determination process Y performed when loading spring paper will be described with reference to FIG. When the spring paper 1 is newly loaded, the spring paper loading detection switch 25, which had been in the OFF state until then, is turned ON. Since this is input to the processing device 15, execution of the determination processing routine Y shown in FIG. 5 is started. Based on this, the transport control means 151 first transports the loaded spring paper 1 by a predetermined amount (j! ten α), that is, slightly longer than the standard size l of the ticket. Conventionally, the starting edge of a newly loaded spring sheet has an irregular shape, as shown in FIG. 8, and therefore cueing is performed to issue a ticket of standard size. That is, at the beginning of loading, after the starting edge detection switch 26 provided in front of the cutter 3 is turned on, the predetermined amount (1+α
), the cutter 3 is operated to convey the first cut ticket, and the solenoid 10 is operated to collect this ticket via the wing 9. In the determination process according to the present invention, similarly, in step 7, a predetermined amount (i+α) of spring paper is always fed out at the beginning of loading.
01), cut (step 702), cue, l+
A trial ticket To with a length of α is created. The marks in FIG. 8 indicate cutting positions. After cutting the trial ticket T0, it is fed out by a predetermined amount and cut at the next cutting position to create a ticket T1 of standard size. Further, the spring paper is fed out by a predetermined amount l, and the cutter 3
It is placed on standby in a state where it is extended forward by 1 and is waiting to be disconnected. Next, in step 703, specific data for determining the coercive force of the loaded spring paper is read from the storage means 159 to prepare for encoding, and a write current for encoding the specific data is set. Switching command a corresponding to the current written to the current switching port #116
Or output b. The specific data may be any data that has a certain content that can be used for data verification in reading and checking, which will be described later. There are two possible ways to set the write current: As shown in FIG. 9, for example, a low-level write current (described later) is set in the clock pulse recording track tr1, and a high-level write current (described later) is set in the data recording track tr2. . The second method is to set a low level or high level write current to one track trt or tr2. Further, these write current settings are automatically set by the write setting means 154 of the processing device 15 based on the spring paper loading detection. In this way, when the write current is set in step 704, the specific data is encoded with a predetermined write current via the current switching circuit 16 and the encoder 7A in steps 705, 706 and 707, and the specific data is read out. The encoded data is read through the section 8A, and the data determining means 157 compares the read data with specific data to check whether or not proper data could be read. The result of this check is given to the coercive force determining means 158, and in step 708 it is determined whether the loaded spring paper is a low coercive force spring paper or a high coercive force field. Here, the principle of determining the coercive force of a magnetic ticket (trial ticket T.) will be explained. The principle of determining the difference in coercive force is to look at the difference in the magnetic properties of magnetic notes. Generally, the strength of the magnetic field generated by a magnetic head is proportional to the current applied to the magnetic head. When writing is performed with various currents in a low coercive force field and a high coercive force field, and the read voltage is measured, the result is as shown in FIG. 10. In FIG. 10, VO is the proper read voltage, V
rf is the reference voltage, Vrf pressure below the groove has no meaning, VLH is the read output voltage when writing with a low level current IL to a low coercive force field, ■□ is a high voltage to a high coercive force field This is the read output voltage when writing at level t current IH. As is clear from the figure, for low-coercivity ten thousand notes, when writing is performed with a low write current (IL) of, for example, about 100 mA, the read voltage is appropriate. can be obtained, and for high coercivity fields, a high write current (I
Appropriate read voltage V when writing is performed with H). are obtained, and the written contents can be read. If the note is not magnetized with a write current commensurate with the coercive force, a sufficient reading voltage cannot be obtained.
) The read voltage when writing with I is VLH, and the read voltage when writing with IL in a high coercive field is vH.
It becomes L. Therefore, Table 1 shows the relationship between the write current and the read voltage and readability for low coercive force fields and high coercive force fields. Table 1 The coercive force determining means 158 uses the result of the check in step 707 in step 708 of FIG. Toratsuri t
Depending on the combination of readability of r2, as shown in Table 2,
The type of ticket is determined. Table 2 The determination result of the coercive force determining means 158 is stored in the storage means 159, and if the ticket issuing device is a 101 machine, a display provided inside the ticket issuing device indicates the determined coercive force of the spring paper. A message indicating that the paper is a spring paper is displayed or transmitted to the host device 20. Based on this, the host device 20 displays the range of routes that can be issued on the customer service side of the ticket issuing device, that is, the range of routes that use low-coercive force tickets or high-magnetic force tickets. In addition, if the ticket issuing device is a 201 machine, the coercive force is stored corresponding to each roll, and the spring paper with a predetermined coercive force is selected and used based on the spring paper designation from the host device. To do this, use the above memory. The data format encoded on the magnetic ticket includes the NRZ-1 code and the FM code as mentioned above.
The encoding method using a combination of encoding and coercive force is
There can be four types as shown in Table 3. Table 3 Regarding N/LP/H, which is the most practical encoding method, considering the actual operation between railway companies, tickets for own line and transfer tickets to other destinations are encoded using the encoding method of the railway company. It is also assumed that there will be cases where they will have to be issued at the same time. In other words, Table 4 shows how to determine the encoding method for the issued ticket corresponding to the difference in encoding method between the company's own line and the other company's line. Table 4 The problem here is that N011 and N014 or NO12
and No. 5, and if you want to match the encoding method to the other party, you must support two types of encoding methods: N/L and F/H. To do this, it is necessary to use a low coercive force for the 201 machine. By loading two types of spring paper with high coercive force and high coercive force, and using either spring paper as necessary to issue the required encoder, the system can be operated without confusion. When the above-mentioned coercive force determination device of the present invention is incorporated into such a ticket issuing device, the coercive force of the spring paper is determined and stored at the beginning of loading the spring paper, so that it can be used based on the customer's request. It is possible to issue tickets with data properly encoded using a required encoding method using spring paper with a required coercive force. In the case of a 10-inch machine, coercive force determination processing is performed when spring paper is first loaded, and the coercive force of that spring paper is displayed, so when replacing spring paper, the type of coercive force of the spring paper itself can be determined. Even if there is no display, the ticket issuing device will automatically identify and display the information.
Loading errors can be prevented. [Effects of the Invention] As described above, according to the coercive force determination method according to the present invention,
A ticket issuing device is used to automatically determine the coercive force of a spring paper loaded therein, and the determination result is used to perform encoding suitable for the spring paper;
Alternatively, it is possible to encode with a predetermined write current on a spring paper with a coercive force corresponding to the issuance request, and it is possible to prevent encoding failures due to differences in coercive force.

[Brief explanation of drawings]

Fig. 1 is a schematic side view of the ticket issuing device, Fig. 2 is an electrical circuit diagram of the main part showing the configuration for encoding, reading, and writing current switching, and Fig. 3 is a block diagram mainly showing the internal configuration of the processing device. , FIG. 4 is a flowchart explaining the operation of the ticket issuing device main body, FIG. 5 is a flowchart schematically explaining the operation at the beginning of the processing device, FIG. 6 is a flowchart explaining the ticket issuing processing operation, and FIG. 7 is a flowchart explaining the operation of the ticket issuing device. Flowchart explaining the coercive force determination processing operation, FIG. 8 is an explanatory diagram showing the shape of the leading edge of spring paper, conveyance amount, and cutting position, FIG. 9 is an explanatory diagram explaining the write current setting for the trial ticket, and FIG.
The figure is a graph showing the magnetic characteristics of a low coercivity device and a high coercivity device. DESCRIPTION OF SYMBOLS 1...Spring paper, 2...Feeding means, 3...Cutter 4...Printing head, 7...Writing head, 8...Reading head, 9...Wing, 10... - Solenoid, 11... Receiving port, 12... Collection box, 15... Processing device, 7A... Writing section, 8A... Reading section, 16... Current switching circuit.

Claims (4)

[Claims] (1) Create a trial ticket from the loaded ticket paper, transport it onto a conveyance path, encode specific information on the trial ticket with a predetermined writing current, read the encoded information, and read the specific information. If the information can be read, it is determined that the paper has a predetermined coercive force for the write current, and
A method for determining the coercive force of a magnetic ticket paper, characterized in that if specific information cannot be read, the paper is determined to have a coercivity other than a predetermined coercive force. (2) Claim 1, characterized in that a ticket that is cut for cueing at the beginning of loading the ticket paper is used as a trial ticket.
Method for determining the coercive force of magnetic ticket paper. (3) If specific information is encoded in the first track of the trial ticket with a low-level write current and in the second track with a high-level write current, and specific information is read from the first track during reading, , the paper is determined to be a low coercive force ticket paper, and if specific information can be read from the second track without being read from the first track, the paper is determined to be a high coercive force ticket paper. The method for determining coercive force of magnetic ticket paper according to claim 1. (4) When specific information is written to one track of a trial ticket using a low-level or high-level write current and read with a predetermined bias, if the specific information is read, the predetermined maintenance corresponding to that bias is applied. 2. The method for determining the coercive force of a magnetic ticket paper according to claim 1, further comprising determining that the paper is a magnetic ticket paper.