JP7204438B2 - Automatic ticket gate, passage control method, and program - Google Patents

Description

TECHNICAL FIELD Embodiments of the present invention relate to automatic ticket gates, passage management methods, and programs.

Automatic ticket gates read information from the memory of the electronic device by holding a card-type electronic device that performs contactless communication over the reader/writer surface, perform predetermined processing, and overwrite station information and time. to write to memory. If the performance of the electronic device is high, the batch writable size is large, but if the electronic device has low performance, the batch writable size is small, so it is necessary to write multiple times. In this case, if the overwriting process ends in the middle, the information stored in the memory of the electronic device will be damaged, and even if the device is held over the automatic ticket gate again, the information cannot be read, resulting in an error. For this reason, the user had to go to the person in charge and have it processed.

Japanese Patent Application Laid-Open No. 2007-310590

The problem to be solved by the present invention is to provide an automatic ticket gate, a passage management method, and a program that can contribute to reducing the work burden on users and staff.

An automatic ticket gate of an embodiment has a communication section, a determination section, and a writing section. The communication unit communicates with an electronic device in which a reading direction and a writing direction are the same in a first direction, and includes a first data area and a second data area after the first data area in the first direction. do. The determination unit determines a reading surface of the first data area or the second data area based on the information read from the electronic device by the communication unit. The writing unit writes predetermined information in the data area not determined as the reading surface by the determination unit when passage is permitted based on information read from the data area determined as the reading surface. . When writing information to the first data area, the writing unit writes first update flag information to first update flag areas immediately before and after the first data area in the first direction, and writes the second data area. When writing information in the area, second update flag information different from the first update flag information is written in the second update flag areas immediately before and after the second data area in the first direction. When the first update flag information is written in the first update flag area, the writing unit writes third update flag information different from the first update flag information and the second update flag information to the first update flag area. 1 update flag area, and when the second update flag information is written in the second update flag area, a second update flag information different from the first update flag information, the second update flag information, and the third update flag information 4 Update flag information is written in the second update flag area.

FIG. 2 is a plan view showing an example of the electronic device according to the first embodiment; 4 is a diagram showing an example of a data area 4b of a memory 4a of the card medium 1; FIG. The figure which looked at the automatic ticket gate 100 of 1st Embodiment from upper direction. The figure which shows an example of a structure of the automatic ticket gate 100 of 1st Embodiment. 4 is a diagram showing an example of information written in a data area 4b of the card medium 1; FIG. 4 is a flowchart showing an example of reading processing by the automatic ticket gate 100 in the first embodiment; 4 is a flowchart showing an example of reading processing by the automatic ticket gate 100 in the first embodiment; 4 is a flowchart showing an example of reading processing by the automatic ticket gate 100 in the first embodiment; 4 is a flowchart showing an example of writing processing by the automatic ticket gate 100 in the first embodiment; The figure which shows an example of the data area 4b-2 in 2nd Embodiment. 4 is a diagram showing an example of information written in a data area 4b-2 of the card medium 1; FIG. The flowchart which shows an example of the reading process by the automatic ticket gate 100 in 2nd Embodiment. The flowchart which shows an example of the reading process by the automatic ticket gate 100 in 2nd Embodiment. The flowchart which shows an example of the reading process by the automatic ticket gate 100 in 2nd Embodiment. The flowchart which shows an example of the write-in process by the automatic ticket gate 100 in 2nd Embodiment. The figure which shows an example of the data area 4b-3 in 3rd Embodiment. 4 is a diagram showing an example of information written in a data area 4b-3 of the card medium 1; FIG. The flowchart which shows an example of the reading process by the automatic ticket gate 100 in 3rd Embodiment. The flowchart which shows an example of the reading process by the automatic ticket gate 100 in 3rd Embodiment. The flowchart which shows an example of the reading process by the automatic ticket gate 100 in 3rd Embodiment. The flowchart which shows an example of the write-in process by the automatic ticket gate 100 in 3rd Embodiment.

An automatic ticket gate, passage control method, and program according to embodiments will be described below with reference to the drawings.

(First embodiment)
1 is a plan view showing an example of an electronic device according to a first embodiment; FIG. The electronic device is, for example, a card medium 1 in which an RFID (Radio Frequency Identifier) tag is embedded in the base material. The electronic device of the embodiment may be one in which an RFID tag is embedded in a base material of various shapes without being limited to a card shape.

The card medium 1 includes, for example, a base material 2 having a display surface 2a on which a two-dimensional code 3 is printed, and an RFID tag 4 embedded in the base material 2. FIG. The tag ID of the RFID tag 4 is recorded in the two-dimensional code 3, and in order to read/write the RFID tag 4, the two-dimensional code 3 must be read first. The two-dimensional code 3 is an example of a "display object". The two-dimensional code 3 is an optically readable code printed on the display surface 2a of the substrate 2. FIG. A user can visually confirm the two-dimensional code 3 from the appearance of the card medium 1. - 特許庁A specific example of the two-dimensional code 3 is a QR code (registered trademark of Denso Wave Inc.).

The two-dimensional code 3 may be encoded with validity information indicating the ticket type and validity. Encoding refers to transforming information into a state in which the contents cannot be directly recognized by humans by encoding, symbolizing, or other techniques. Further, the validity information is, for example, the following information, and is information that defines the range in which the ticket can be used. Any type of display object in which information is encoded, such as a bar code, may be printed instead of the two-dimensional code 3 . Also, the ticket may be a regular ticket valid for one ride, or a one-day ticket that can be used any number of times on the day of use.
(1) One-day ticket Example: All sections of XX railway can be used for one day without restrictions on the number of times (2) Available sections and dates Example: Section from XX station to XX station, Available from 12/1 to 12/31 (3) Maximum fares and available dates Example: Sections with fares up to 500 yen can be used from 12/1 to 12/31

RFID tag 4 includes a chip and an antenna. The RFID tag 4 is embedded inside the card medium 1 by being embedded in the base material 2 . The chip of the RFID tag 4 is, for example, a passive type IC (Integrated Circuit) chip. The chip of the RFID tag 4 transmits and receives information to and from the reader/writer section of the automatic ticket gate using RFID technology. Processing by the chip of the RFID tag 4 is performed, for example, by a command response method of responding to a command received via the antenna of the RFID tag 4 from a reader/writer of an automatic ticket gate.

The control circuit of the chip of the RFID tag 4 writes the data instructed by the reader/writer of the automatic ticket gate into the memory 4a, and transmits the data read from the memory 4a to the reader/writer of the automatic ticket gate through the antenna. do.

The memory 4a of the chip of the RFID tag 4 includes, for example, a readable/writable nonvolatile storage medium such as EEPROM (Electrically Erasable Programmable Read-Only Memory). For example, a usage record of the card medium 1 is written in the memory 4a by a reader/writer of an automatic ticket gate. The usage record of the card medium 1 is, for example, information such as usage station (entrance station, exit station), usage date and time (entrance date and time, departure date and time).

FIG. 2 is a diagram showing an example of the data area 4b of the memory 4a of the card medium 1. As shown in FIG. The reading direction and the writing direction in the data area 4b are the same, which is the first direction d1.

Data area 4b includes two data areas X and Y. FIG. Usage records of the card medium 1 are alternately written in the data areas X and Y, respectively. An update flag area X1 is set immediately before the data area X, and an update flag area X1 is set immediately after the data area X, respectively. An update flag area Y1 is set immediately before the data area Y, and an update flag area Y1 is set immediately after the data area Y, respectively.

In the data area 4b, the positions of the data areas X and Y and the positions of the update flag areas X1, X2, Y1 and Y2 are managed by addresses. For example, the top position of update flag area X1 is address P1, and the top position of update flag area Y1 is address P2. By designating the address P1 and writing information from the top of the update flag area X1, information can be written to "update flag area X1+data area X+update flag area X2". Further, by designating the address P2 and writing information from the top of the update flag area Y1, information can be written to "update flag area Y1+data area Y+update flag area Y2".

FIG. 3 is a top view of the automatic ticket gate 100 of the first embodiment. The automatic ticket gate 100 includes a main machine 200 and a slave machine 300 facing each other across a passage. The main device 200 includes, for example, a reader/writer section 210, a top display section 220, a front display section 230, a door section 240 and a door section 250, and a control section 260. Slave device 300 also includes reader/writer section 310 , upper display section 320 , front display section 330 , and door sections 340 and 350 .

The reader/writer unit 210 of the main unit 200 reads the information stored in the card medium 1 held by the user who is about to pass in the direction a in FIG. The top display unit 220 displays the results processed by the control unit 260 . The front display unit 230 displays marks, figures, characters, etc. indicating whether or not it is possible to pass in the direction a. The display content of front display section 230 is determined by control section 260 . In the example of FIG. 3, since the automatic ticket gate 100 is set to the operation mode (first operation mode) that permits passage only in the direction of a, the front display section 230 of the main machine 200 indicates that passage is permitted. A mark is displayed. The controller 260 controls each part of the main machine 200 and the slave machine 300 .

On the other hand, the reader/writer unit 310 of the slave device 300 reads the information stored in the card medium 1 held up by the user who is about to pass in the b direction, and transmits the read information to the control unit 260 of the main device 200. . The upper surface display section 320 displays the result processed by the control section 260 of the main machine 200 when the card medium 1 is held over the reader/writer section 310 . The front display unit 330 displays marks, figures, characters, etc., indicating whether or not it is possible to pass in the b direction. The display content of the front display section 330 is determined by the control section 260 of the main machine 200 . In the example of FIG. 3, the automatic ticket gate 100 is set to the first operation mode that permits passage only in the direction of a. it's shown.

The reader/writer units 210 and 310, for example, communicate with the card medium 1 held over the reader/writer surfaces 210a and 310a. The reader/writer units 210 and 310 execute reading processing for reading various information from the card medium 1 . For example, the reader/writer units 210 and 310 acquire card IDs and usage record information. A card ID is identification information for identifying the card medium 1 . The usage record information is, as described above, information indicating the usage record of the card medium 1 including information such as the station used and the date and time of use.

In addition, the reader/writer units 210 and 310 write information to the card medium 1 held over the reader/writer surfaces 210a and 310a. In the reader/writer units 210 and 310, the data length that can be written in one write is determined. When writing information to the data areas X and Y of the card medium 1, the reader/writer units 210 and 310 divide the information and write all the information in a plurality of times. Therefore, if the card medium is separated from the reader/writer surfaces 210a and 310a in the middle of the writing process, the writing process ends halfway, and the information written in the card medium 1 is damaged.

When the automatic ticket gate 100 is set to the first operation mode, the control unit 260 keeps the doors 250 and 350 open and controls the doors 240 and 340 to open or close. By doing so, the passage of the user in the direction of a is permitted or prohibited. Further, when the automatic ticket gate 100 is set to an operation mode (second operation mode) that permits passage only in the direction b in FIG. At the same time, by controlling the doors 250 and 350 to be open or closed, the passage of the user in the b direction is permitted or prohibited.

The control unit 260 of the main machine 200 determines whether passage is permitted based on the information read by the reader/writer unit 210 or the reader/writer unit 310, and controls the door units 240, 250, 340, and 350.

FIG. 4 is a diagram showing an example of the configuration of the automatic ticket gate 100 of the first embodiment. Hereinafter, for simplification of explanation, each configuration of the main machine 200 will be explained, and the explanation of the configuration of the slave machine 300 will be omitted.

The reader/writer section 210 includes a reader/writer 211 and an encoding/decoding section 212 . The reader/writer 211 communicates with the card medium 1 held over the reader/writer surface 210a. The reader/writer 211 has, for example, an antenna, and performs wireless communication with the card medium 1 using an ISM (Industry-Science-Medical) frequency band such as 13.56 [MHz].

For example, the encoding/decoding unit 212 decodes information read from the card medium 1 by the reader/writer 211 and outputs the information to the control unit 260 , and also encrypts information instructed by the control unit 260 and outputs the encrypted information to the reader/writer 211 . do. The reader/writer 211 writes the information input from the encoding/decoding section 212 to the card medium 1 .

The storage unit 270 is realized by, for example, RAM (Random Access Memory), ROM (Read Only Memory), HDD (Hard Disk Drive), and the like. The storage unit 270 stores programs executed by the processor, station information 271, a fare table 272, and the like.

The control unit 260 includes, for example, a determination unit 261, a passability determination unit 262, a pass control unit 263, a reader/writer control unit 264, a communication control unit 265, and a decoding processing unit 266. Some or all of these functional units are implemented by a processor such as a CPU (Central Processing Unit) executing programs (software) stored in the storage unit 270 . In addition, some or all of the functions of these components are implemented in hardware such as LSI (Large Scale Integration), ASIC (Application Specific Integrated Circuit), FPGA (Field-Programmable Gate Array), and GPU (Graphics Processing Unit). (including circuitry), or may be realized by cooperation of software and hardware. The program may be stored in advance in a storage device such as a HDD (Hard Disk Drive) or flash memory, or may be stored in a removable storage medium such as a DVD or CD-ROM. It may be installed by being worn.

Based on the information read from the card medium 1 by the reader/writer section 210, the determination section 261 determines which of the data area X and the data area Y is to be read. Further, the determining unit 261 determines the data area which has not been determined as the reading surface, either the data area X or the data area Y, as the writing surface.

For example, the determination unit 261 determines the reading surface to be the data area X or the data area Y in which the written information is normal. If the written information is normal in both the data area X and the data area Y, the determination unit 261 determines the side to be read, whichever has the most recent information written timing. "The written information is normal" may further include a state in which the written information is not damaged and a state in which the decoded information is normal. The state in which there is no abnormality in the decoded information includes, for example, that the arrangement of information, the length of information, the arrangement of information, etc. are within a predetermined range.

For example, the determining unit 261 determines whether the information written in each data area is normal based on the update flag information written in the update flag areas X1, X2, Y1, and Y2. Further, the determining unit 261 determines whether the timing of writing is new or old based on the type of information written in each update flag area. Types of update flag information include, for example, AA, BB, CC, DD, and so on. These detailed methods will be described later.

The determining unit 261 also determines the types of update flag information to be written in the update flag areas X1, X2, Y1, and Y2. For example, the determining unit 261 determines the type of update flag information to be written so that the update flag information is used in the order of AA, BB, CC, DD, . By doing so, the determination unit 261 can determine the timing at which the information is written based on the type of update flag information.

The passage propriety determination unit 262 determines whether or not the user can pass based on the information read from the data area determined as the reading surface by the determination unit 261 among the information read by the reader/writer unit 210. do. For example, when the data area X is determined by the determination unit 261 to be the reading surface, the passability determination unit 262 extracts information (data X′) corresponding to the data area X from the information read by the reader/writer unit 210. , based on the extracted data X', it is determined whether or not the user can pass through. Note that the passability determining unit 262 refers to the address indicating the position of the data area X in the data area 4b and extracts the data X'.

For example, when the card medium 1 is used as a one-day ticket, the passability determination unit 262 determines that the pass is possible if the current day falls within the available period included in the data X'. In addition, when the card medium 1 is used as a ticket to be settled when exiting the train, the pass propriety determination unit 262 collates the fare table 272 in the storage unit 270 and settles the payment based on the station information included in the data X'. A fare may be derived, and if the balance charged in the card medium 1 is higher than the fare, it may be determined that passage is possible.

The passage control unit 263 controls the doors 240 and 250, the upper surface display unit 220, the front display unit 230, or a combination of these according to the determination result of the passage possibility determination unit 262 and the processing result of the reader/writer control unit 264. to control. For example, when passage is permitted by the passability determination unit 262 and writing to the card medium is completed by the reader/writer control unit 264, for example, the upper display unit 220 and the front display unit 230 indicate that the card medium 1 can be used. It outputs the information representing the door, controls the doors 240 and 250 to open, and permits the passage of the user.

Further, the passage control unit 263, when it is determined by the passage permission determination unit 262 that the passage of the user is prohibited, or when the reader/writer control unit 264 is executing writing to the card medium, for example, the upper surface display unit 220 , the front display section 230 is caused to output information indicating that the card medium 1 cannot be used, and the door sections 240 and 250 are controlled to be closed to prohibit the passage of the user.

The reader/writer control unit 264 controls the reader/writer unit 210 so that predetermined information is written in the data area determined as the writing surface by the determination unit 261 when the passability determination unit 262 permits the passage of the user. do. The predetermined information includes, for example, usage records (departure station, departure date and time, etc.), a flag indicating completion of payment, charge amount after payment, and the like.

When writing the predetermined information to the data area of the writing surface, the reader/writer control unit 264 causes the reader/writer unit to write the type of update flag information determined by the determining unit 261 to the update flag areas before and after the data area of the writing surface. 210. For example, the reader/writer control unit 264 designates the top address of the update flag area before the data area of the writing surface, and from the designated address, reads information in which the update flag information is linked before and after the predetermined information. Control the reader/writer unit 210 to write. Note that the reader/writer control unit 264 creates predetermined information according to the data lengths of the data areas X and Y so that the position of the update flag information does not shift.

The communication control unit 265, for example, controls communication equipment provided in the automatic ticket gate 100, and transmits information read from the card medium 1 by the reader/writer unit 210, information to be written in the card medium 1, and the like to the server device. do. A communication device includes, for example, a communication interface such as a NIC. Further, the communication control unit 265 may receive various information from the server device and store it in the storage unit 270 using a communication device.

The decoding processing unit 266 decodes the encoded information.

Next, an example of processing by the control unit 260 will be described. FIG. 5 is a diagram showing an example of information written in the data area 4b in the first embodiment. Each processing described below is executed each time the card medium 1 is held over the automatic ticket gate 100 .

First, when the card medium 1 is in the initial state, the update flag areas X1, X2, Y1, Y2 and the data areas X, Y have no information. (First process) When the card medium 1 is in the initial state, the determining unit 261 determines that there is no read information, and determines the data area X as the writing surface. Then, "0xAA+data D1+0xAA" is written starting from the address P1. "0xAA+data D1+0xAA" is data obtained by concatenating data D1 after 0xAA and concatenating 0xAA after data D1.

(Second Processing) When the card medium 1 is in the state after the first processing, the determination unit 261 determines the data area X as the reading side and the data area Y as the writing side. Then, "0xBB+data D2+0xBB" is written starting from the address P2.

(Third Processing) When the card medium 1 is in the state after the second processing, the determination unit 261 determines the data area Y as the reading side and the data area X as the writing side. Starting from address P1, "0xCC+data D3+0xCC" is written.

(Fourth Processing) Next, when the card medium 1 is in the state after the third processing, the determination unit 261 determines the data area X as the reading surface and the data area Y as the writing surface. Starting from address P2, "0xDD+data D4+0xDD" is written.

(Fifth Processing) When the card medium 1 is in a state after the fourth processing, the determination unit 261 determines the data area Y as the reading side and the data area X as the writing side. Starting from address P1, "0xAA+data D5+0xAA" is written. However, in this process, the card medium 1 is separated from the reader/writer surface 210a for a short period of time. The writing fails, and the information "0xAA" is not overwritten in the update flag area X2. Therefore, the update flag area X1="0xAA" and the update flag area X2="0xCC". In this case, the information read from data area X is corrupted.

(Sixth process) When the card medium 1 is in a state after the fifth process, the determining unit 261 determines the data area Y as the reading surface and the data area X as the writing surface. Here, since the card medium 1 is not separated from the reader/writer surface 210a, "0xAA+data D4+0xAA" is written with the address P1 at the top. As described above, by separating the writing surface and the reading surface into different data areas, the writing process can be performed without destroying the read information.

(Seventh Process) When the card medium 1 is in a state after the sixth process, the determination unit 261 determines the data area X as the reading surface and the data area Y as the writing surface. Starting from the address P2, "0xBB+data D6+0xBB" is written. However, as described above, although the top update flag area X1 is overwritten with the information "0xBB", the writing of the data D6 to the data area Y fails during writing, and the information "0xBB" is written to the update flag area X2. ” is not overwritten. In this case, the update flag area Y1="0xBB" and the update flag area Y2="0xDD". In this case, the information read from data area Y is corrupted.

(Eighth Process) When the card medium 1 is in the state after the seventh process, the determination unit 261 determines the data area X as the reading surface and the data area Y as the writing surface. Starting from the address P2, "0xBB+data D6+0xBB" is written.

The 9th to 12th processes are the same as the 5th to 8th processes, except that the types of update flag information are different, so detailed description thereof will be omitted.

Next, an example of processing by the automatic ticket gate 100 will be described. 6 to 8 are flowcharts showing an example of reading processing by the automatic ticket gate 100 in the first embodiment. First, the reader/writer control unit 264 controls the reader/writer unit 210 to read information from the card medium 1 (step S101). Next, the determination unit 261 determines whether the data areas X and Y are used or unused according to the combination of types of update flag information included in the read information.

For example, the determining unit 261 determines whether the information read from the update flag area X1 is either "0xAA" or "0xCC" based on the address of the data area 4b (step S103). The determination unit 261 also determines whether the information read from the update flag area X2 is either "0xAA" or "0xCC" (step S105). If the information read from the update flag areas X1 and X2 is either "0xAA" or "0xCC", the determining unit 261 determines that the data area X has been used (step S107). On the other hand, if the determination result is negative in either step S103 or S105, that is, if the information read from the update flag area X1 or X2 is neither "0xAA" nor "0xCC", the determination unit 261 It is determined that the data area X is unused (step S109).

Next, the determination unit 261 determines whether the information read from the update flag area Y1 is either "0xBB" or "0xDD" based on the address of the data area 4b (step S111). The determination unit 261 also determines whether the information read from the update flag area Y2 is "0xBB" or "0xDD" (step S113). If the information read from the update flag areas Y1 and Y2 is either "0xBB" or "0xDD", the determination unit 261 determines that the data area Y has been used (step S115). On the other hand, if either step S111 or S113 yields a negative determination result, that is, if the information read from the update flag area Y1 or Y2 is neither "0xBB" or "0xDD", the determining unit 261 It is determined that the data area Y is unused (step S117).

Next, the determination unit 261 determines whether or not both the data areas X and Y are unused (step S119). If both the data areas X and Y are unused, the determination unit 261 determines that there is no read data (step S121). Then, the automatic ticket gate 100 ends the reading process.

On the other hand, if both the data areas X and Y are not unused, the determining unit 261 determines whether the data area X is already used (step S123). When the data area X is already used, the determining unit 261 determines whether or not the information read from the update flag area X1 matches the information read from the update flag area X1 (step S125). If both match, the decoding processing unit 266 decodes the information read from the data area X (step S127). The determination unit 261 determines whether or not the decoded information is normal (step S129). That is, it is determined whether or not the decoded information is normal. If the decoded information is normal information, the determining unit 261 determines that the information written in the data area X is normal (OK) (step S131). On the other hand, when it is determined in step S123 that the data area X is unused, and when it is determined in step S125 or step S129 that the information written in the data area X is not normal, the determination unit 261 Data area X=NG is determined (step S133).

Next, the determination unit 261 determines whether or not the data area Y has been used (step S135). When the data area Y has been used, the determining unit 261 determines whether or not the information read from the update flag area Y1 matches the information read from the update flag area Y1 (step S137). If both match, the decoding processing unit 266 decodes the information read from the data area Y (step S139). The determination unit 261 determines whether or not the decoded information is normal (step S141). That is, it is determined whether or not the decoded information is normal. If the decoded information is normal information, the determining unit 261 determines that the information written in the data area Y is normal (OK) (step S143). On the other hand, when it is determined in step S135 that the data area Y is unused, and when it is determined in step S137 or step S141 that the information written in the data area Y is not normal, the determining unit 261 Data area Y=NG is determined (step S145).

Next, the determination unit 261 determines the reading surface according to the OK or NG determination result of the data area. For example, the determining unit 261 determines whether data area X=NG and data area Y=NG (step S147). When data area X=NG and data area Y=NG, the determining unit 261 determines that there is an error in the reading process (step S149). In this case, since the automatic ticket gate 100 cannot process, the user needs to bring the card medium 1 to the clerk and have it processed.

Next, the determination unit 261 determines whether data area X=OK and data area Y=NG (step S151). When data area X=OK and data area Y=NG, the determining unit 261 determines the data area X as the reading surface (step S153).

Next, the determination unit 261 determines whether data area X=NG and data area Y=OK (step S155). When data area X=NG and data area Y=OK, the determination unit 261 determines data area Y as the reading surface (step S157).

Then, if none of the above cases apply, that is, if data area X=OK and data area Y=OK, the determination unit 261 determines the combination of update flag information (step S159) Determine the reading surface.

For example, if the combination of update flag information is either "combination of 0xAA and 0xBB" or "combination of 0xCC and 0xDD", the determining unit 261 determines data area Y as the reading surface (step S161).

On the other hand, if the combination of update flag information is either "combination of 0xCC and 0xBB" or "combination of 0xAA and 0xDD", the determination unit 261 determines data area X as the reading surface (step S163). Then, the automatic ticket gate 100 ends the reading process.

FIG. 9 is a flowchart showing an example of writing processing by the automatic ticket gate 100 in the first embodiment. First, the determining unit 261 determines the writing surface according to the reading surface (step S201). If the reading surface is the data area Y, or if there is no reading data for both the data areas X and Y, the determining unit 261 determines the writing surface to be the data area X (step S203).

Next, the determination unit 261 determines the type of update flag information for writing according to the type of update flag information for reading (step S205). If the update flag information at the time of reading is "0xDD", or if there is no information written in the update flag areas Y1 and Y2, the determining unit 261 determines the update flag information at the time of writing to be "0xAA" ( step S207). On the other hand, when the update flag information for reading is "0xBB", the determining unit 261 determines the update flag information for writing to be "0xCC" (step S209).

On the other hand, if the reading surface is the data area X in step S201, the determination unit 261 determines the writing surface to be the data area Y (step S211). Next, the determination unit 261 determines the type of update flag information for writing according to the type of update flag information for reading (step S213). When the update flag information for reading is "0xAA", the determining unit 261 determines the update flag information for writing to be "0xBB" (step S215). On the other hand, when the update flag information for reading is "0xCC", the determination unit 261 determines the update flag information for writing to be "0xDD" (step S217).

Then, the reader/writer control unit 264 controls the reader/writer unit 210 to write information to the card medium 1 (step S219). Here, the reader/writer control unit 264 generates information in which the update flag information determined by the determination unit 261 is connected before and after the predetermined information to be written. The reader/writer control unit 264 controls the reader/writer unit 210 so as to specify the address of the data area X or Y determined on the writing surface by the determination unit 261 and write the generated information.

According to at least one embodiment described above, the reading direction and the writing direction are the same first direction, and the first data area and the second data area after the first data area in the first direction a determining unit configured to determine the reading surface of the first data area or the second data area based on the information read from the electronic device by the communication unit; a writing unit that writes predetermined information to the data area that is not determined to be the reading surface by the determination unit when passage is permitted based on information read from the data area determined to be the reading surface. By providing it, it is possible to contribute to the reduction of the work burden on users and staff.

(Second embodiment)
Next, a second embodiment will be described. The card medium and the automatic ticket gate in this embodiment have the same functional configuration as the card medium 1 and the automatic ticket gate 100 in the first embodiment described above, so a detailed description thereof will be omitted and the same reference numerals will be given. are explained below. Differences from the first embodiment will be described below.

FIG. 10 is a diagram showing an example of the data area 4b-2 in the second embodiment. The data area 4b-2 includes two data areas X and Y. FIG. An update flag area X3 is set immediately before the data area X, an update flag area Z is set immediately after the data area X and immediately before the data area Y, and an update flag area Y3 is set immediately after the data area Y. It is

In the data area 4b-2, the positions of the data areas X and Y and the positions of the update flag areas X3, Z and Y3 are managed by addresses. For example, the top position of update flag area X3 is address P3, and the top position of update flag area Z is address P4. By designating the address P3 and writing information from the beginning of the update flag area X3, information can be written to "update flag area X3+data area X+update flag area Z". Further, by designating the address P4 and writing information from the beginning of the update flag area Z, information can be written to "update flag area Z+data area Y+update flag area Y3".

FIG. 11 is a diagram showing an example of information written in the data area 4b-2 of the card medium 1. As shown in FIG. Each processing described below is executed each time the card medium 1 is held over the automatic ticket gate 100 .

First, when the card medium 1 is in the initial state, the update flag areas X3, Z, Y3 and the data areas X, Y have no information. (First process) When the card medium 1 is in the initial state, the determining unit 261 determines that there is no read information, and determines the data area X as the writing surface. Then, "0xAA+data D11+0xAA" is written starting from the address P3.

(Second Processing) When the card medium 1 is in the state after the first processing, the determination unit 261 determines the data area X as the reading side and the data area Y as the writing side. Then, "0xBB+data D12+0xBB" is written starting from the address P4.

(Third Processing) When the card medium 1 is in the state after the second processing, the determination unit 261 determines the data area Y as the reading side and the data area X as the writing side. Starting from address P3, "0xAA+data D13+0xAA" is written.

(Fourth Processing) Next, when the card medium 1 is in the state after the third processing, the determination unit 261 determines the data area X as the reading surface and the data area Y as the writing surface. Starting from address P4, "0xCC+data D14+0xCC" is written.

(Fifth Processing) When the card medium 1 is in a state after the fourth processing, the determination unit 261 determines the data area Y as the reading side and the data area X as the writing side. Starting from address P3, "0xAA+data D15+0xAA" is written.

(Sixth process) Next, when the card medium 1 is in the state after the fifth process, the determining unit 261 determines the data area X as the reading surface and the data area Y as the writing surface. Starting from address P4, "0xBB+data D16+0xBB" is written.

(Seventh Process) When the card medium 1 is in the state after the sixth process, the determination unit 261 determines the data area Y as the reading surface and the data area X as the writing surface. Starting from address P3, "0xAA+data D17+0xAA" is written. However, in this process, the card medium 1 is separated from the reader/writer surface 210a for a short period of time. The writing fails, and the update flag area Z is not overwritten with the information "0xAA". Therefore, the update flag area X3="0xAA" and the update flag area Z="0xBB". In this case, the information read from data area X is corrupted.

(Eighth Process) When the card medium 1 is in a state after the seventh process, the determination unit 261 determines the data area Y as the reading surface and the data area X as the writing surface. Here, since the card medium 1 has not been separated from the reader/writer surface 210a, "0xAA+data D17+0xAA" is written starting from the address P3. As described above, by separating the writing surface and the reading surface into different data areas, the writing process can be performed without destroying the read information.

(Ninth Processing) When the card medium 1 is in the state after the eighth processing, the determining unit 261 determines the data area X as the reading surface and the data area Y as the writing surface. Starting from address P4, "0xCC+data D18+0xCC" is written. However, as described above, although the information "0xCC" is overwritten in the update flag area Z at the beginning, the writing fails during the writing of the data D18 to the data area Y, and the information "0xCC" is written in the update flag area Y3. ” is not overwritten. In this case, the update flag area Z="0xCC" and the update flag area Y3="0xBB". The information read from data area Y is corrupted.

(Tenth Processing) When the card medium 1 is in the state after the ninth processing, the determining unit 261 determines the data area X as the reading surface and the data area Y as the writing surface. Here, since the card medium 1 is not separated from the reader/writer surface 210a, "0xCC+data D18+0xCC" is written with the address P3 at the top.

12 to 14 are flowcharts showing an example of reading processing by the automatic ticket gate 100 in the second embodiment. First, the reader/writer control unit 264 controls the reader/writer unit 210 to read information from the card medium 1 (step S301). Next, the determination unit 261 determines whether the data areas X and Y are used or unused according to the combination of types of update flag information included in the read information.

For example, the determining unit 261 determines whether or not the information read from the update flag area X3 is "0xAA" based on the address of the data area 4b-2 (step S303). The determination unit 261 also determines whether the information read from the update flag area Z is either "0xAA" or "0xCC" (step S305). When the information read from the update flag area X3 is "0xAA" and the information read from the update flag area Z is either "0xAA" or "0xCC", the determination unit 261 determines that the data area X is It is determined that it has been used (step S307). On the other hand, if the determination result is negative in either step S303 or S305, that is, if the information read from the update flag area X3 is not "0xAA", or if the information read from the update flag area Z2 is "0xAA" or “0xCC”, the determining unit 261 determines that the data area X is unused (step S309).

Next, the determination unit 261 determines whether the information read from the update flag area Z is either "0xBB" or "0xCC" based on the address of the data area 4b-2 (step S311). The determining unit 261 also determines whether the information read from the update flag area Y3 is "0xBB" or "0xCC" (step S313). If the information read from the update flag areas Z and Y3 is either "0xBB" or "0xCC", the determining unit 261 determines that the data area Y has been used (step S315). On the other hand, if either step S311 or S313 yields a negative determination result, that is, if the information read from the update flag area Z or Y3 is neither "0xBB" nor "0xCC", the determination unit 261 It is determined that the data area Y is unused (step S317).

Next, the determination unit 261 determines whether or not both the data areas X and Y are unused (step S319). If both data areas X and Y are unused, the determination unit 261 determines that there is no read data (step S321). Then, the automatic ticket gate 100 ends the reading process.

On the other hand, if both the data areas X and Y are not unused, the determining unit 261 determines whether the data area X is already used (step S323). When the data area X is already used, the determining unit 261 determines whether or not the information read from the update flag area X3 matches the information read from the update flag area Z (step S325). If both match, the decoding processing unit 266 decodes the information read from the data area X (step S327). The determination unit 261 determines whether or not the decoded information is normal (step S229). That is, it is determined whether or not the decoded information is normal. If the decoded information is normal information, the determining unit 261 determines that the information written in the data area X is normal (OK) (step S331). On the other hand, when it is determined in step S323 that the data area X is unused, and when it is determined in step S325 or step S329 that the information written in the data area X is not normal, the determination unit 261 Data area X=NG is determined (step S333).

Next, the determination unit 261 determines whether or not the data area Y has been used (step S335). If the data area Y has been used, the determination unit 261 determines whether or not the information read from the update flag area Z matches the information read from the update flag area Y3 (step S337). If both match, the decoding processing unit 266 decodes the information read from the data area Y (step S339). The determination unit 261 determines whether or not the decoded information is normal (step S341). That is, it is determined whether or not the decoded information is normal. If the decoded information is normal information, the determining unit 261 determines that the information written in the data area Y is normal (OK) (step S343). On the other hand, when it is determined in step S335 that the data area Y is unused, and when it is determined in step S337 or step S341 that the information written in the data area Y is not normal, the determination unit 261 Data area Y=NG is determined (step S345).

The processing of steps S147-157 is as described above.

If none of steps S147 to S157 apply, that is, if data area X=OK and data area Y=OK, the determination unit 261 determines the type of update flag information read from update flag area Z. (step S359), the reading surface is determined.

For example, if the update flag information read from the update flag area Z is either "0xBB" or "0xCC", the determining unit 261 determines the data area Y as the reading surface (step S361).

On the other hand, when the update flag information read from the update flag area Z is "0xAA", the determining unit 261 determines the data area X as the reading surface (step S363). Then, the automatic ticket gate 100 ends the reading process.

FIG. 15 is a flowchart showing an example of writing processing by the automatic ticket gate 100 in the second embodiment. First, the determining unit 261 determines the writing surface according to the reading surface (step S401). If the read surface is the data area Y, or if there is no read data for both the data areas X and Y, the determining unit 261 determines the data area X as the writing surface (step S403). Then, the determination unit 261 determines the update flag information at the time of writing to be "0xAA" (step S409).

On the other hand, if the reading surface is the data area X in step S401, the determination unit 261 determines the writing surface to be the data area Y (step S411). Next, the determination unit 261 determines the type of update flag information at the time of writing according to the type of update flag information read from the update flag area Y3 (step S413). If the update flag information read from the update flag area Y3 is "0xCC", or if there is no information written in the update flag area Y3, the determining unit 261 sets the update flag information at the time of writing to "0xBB." ” (step S415). On the other hand, when the update flag information for reading is "0xBB", the determining unit 261 determines the update flag information for writing to be "0xCC" (step S417).

(Third embodiment)
Next, a third embodiment will be described. The card medium and the automatic ticket gate in this embodiment have the same functional configuration as the card medium 1 and the automatic ticket gate 100 in the first embodiment described above, so a detailed description thereof will be omitted and the same reference numerals will be given. are explained below. Differences from the first embodiment will be described below.

FIG. 16 is a diagram showing an example of the data area 4b-3 in the third embodiment. Data area 4b-3 includes two data areas X and Y. FIG. An update flag area X5 is set immediately before the data area X, and an update flag area Y5 is set immediately after the data area Y, respectively.

In the data area 4b-3, the positions of the data areas X and Y and the positions of the update flag areas X5 and Y5 are managed by addresses. For example, the head position of the update flag area X5 is address P5, the head position of the data area Y is address P6, and the head position of the update flag area Y5 is address P7.

When writing information in the data area X, by designating the address P5 and writing the information from the top of the update flag area X5, the information can be written in the "update flag area X5+data area X". Further, by specifying the address P7 and writing information from the beginning of the update flag area Y5, information can be written to the "update flag area Y5".

When writing the information in the data area Y, the information can be written in the "update flag area X5" by designating the address P5 and writing the information from the beginning of the update flag area X5. Further, by designating the address P6 and writing information from the beginning of the data area Y, information can be written to the "data area Y+update flag area Y5".

FIG. 17 is a diagram showing an example of information written in the data area 4b-3 of the card medium 1. As shown in FIG. Each processing described below is executed each time the card medium 1 is held over the automatic ticket gate 100 .

First, when the card medium 1 is in the initial state, the update flag areas X5 and Y5 and the data areas X and Y have no information. (First process) When the card medium 1 is in the initial state, the determining unit 261 determines that there is no read information, and determines the data area X as the writing surface. Then, "0xAA+data D21" is written starting from the address P5, and "0xAA" is written starting from the address P7.

(Second Processing) When the card medium 1 is in the state after the first processing, the determination unit 261 determines the data area X as the reading side and the data area Y as the writing side. Then, "0xBB" is written starting from the address P5, and "data D22+0xBB" is written starting from the address P6.

(Third Processing) When the card medium 1 is in the state after the second processing, the determination unit 261 determines the data area Y as the reading side and the data area X as the writing side. "0xAA+data D23" is written starting from the address P5, and "0xAA" is written starting from the address P7.

(Fourth Processing) Next, when the card medium 1 is in the state after the third processing, the determination unit 261 determines the data area X as the reading surface and the data area Y as the writing surface. Then, "0xBB" is written starting from the address P5, and "data D24+0xBB" is written starting from the address P6.

(Fifth Processing) When the card medium 1 is in a state after the fourth processing, the determination unit 261 determines the data area Y as the reading side and the data area X as the writing side. "0xAA+data D25" is written starting from the address P5, and "0xAA" is written starting from the address P7. However, in this process, the card medium 1 is separated from the reader/writer surface 210a for a short period of time. The writing fails, and the information "0xAA" is not overwritten in the update flag area Y5. Therefore, the update flag area X5="0xAA" and the update flag area Y5="0xBB". In this case, the information read from data area X is corrupted.

(Sixth process) When the card medium 1 is in a state after the fifth process, the determining unit 261 determines the data area Y as the reading surface and the data area X as the writing surface. Here, since the card medium 1 is not separated from the reader/writer surface 210a, "0xAA+data D25" is written starting from the address P5, and "0xAA" is written starting from the address P7. As described above, by separating the writing surface and the reading surface into different data areas, the writing process can be performed without destroying the read information.

(Seventh Process) When the card medium 1 is in a state after the sixth process, the determination unit 261 determines the data area X as the reading surface and the data area Y as the writing surface. Then, "0xBB" is written starting from the address P5, and "data D26+0xBB" is written starting from the address P6. However, as described above, although the top update flag area X5 is overwritten with the information "0xBB", the writing of the data D16 to the data area Y fails during writing, and the information "0xBB" is written to the update flag area Y5. ” is not overwritten. In this case, the update flag area X5="0xBB" and the update flag area Y5="0xAA". The information read from data area Y is corrupted.

(Eighth Process) When the card medium 1 is in the state after the seventh process, the determination unit 261 determines the data area X as the reading surface and the data area Y as the writing surface. Here, since the card medium 1 is not separated from the reader/writer surface 210a, "0xBB" is written starting with the address P5, and "data D26+0xBB" is written starting with the address P6.

18 to 20 are flowcharts showing an example of reading processing by the automatic ticket gate 100 in the third embodiment. First, the reader/writer control unit 264 controls the reader/writer unit 210 to read information from the card medium 1 (step S501). Next, the determination unit 261 determines whether the data areas X and Y are used or unused according to the combination of types of update flag information included in the read information.

For example, the determination unit 261 determines whether the information read from the update flag area Y5 is either "0xAA" or "0xBB" based on the address of the data area 4b-3 (step S503). If the information read from the update flag area Y5 is neither "0xAA" nor "0xBB", the determining unit 261 determines that both data areas X and Y are unused (step S505). Then, the determining unit 261 determines that there is no read data (step S507). Then, the automatic ticket gate 100 ends the reading process.

On the other hand, if the determination result in step S503 is negative, that is, if the information read from the update flag area Y5 is neither "0xAA" nor "0xBB", the process proceeds to FIG.

The determining unit 261 determines whether the information read from the update flag area X5 and the information read from the update flag area Y5 are both "0xAA" (step S525). If both are "0xAA", the decoding processing unit 266 decodes the information read from the data area X (step S527). The determination unit 261 determines whether or not the decoded information is normal (step S529). That is, it is determined whether or not the decoded information is normal. If the decoded information is normal information, the determining unit 261 determines that the information written in the data area X is normal (OK) (step S531). On the other hand, if it is determined in step S529 that the information written in the data area X is not normal, the determination unit 261 determines data area X=NG (step S533).

If both are not "0xAA" in step S525, the determination unit 261 determines whether the information read from the update flag area X5 and the information read from the update flag area Y5 are both "0xBB" ( step S537). If both are "0xBB", the decoding processing unit 266 decodes the information read from the data area Y (step S539). The determination unit 261 determines whether or not the decoded information is normal (step S541). That is, it is determined whether or not the decoded information is normal. If the decoded information is normal information, the determining unit 261 determines that the information written in the data area Y is normal (OK) (step S543). On the other hand, if it is determined in step S541 that the information written in the data area Y is not normal, the determining unit 261 determines data area Y=NG (step S545).

If both are not "0xBB" in step S537, the determining unit 261 determines whether the information read from the update flag area X5 is "00AA" and the information read from the update flag area Y5 is "0xBB". Determine (step S547). When the information read from the update flag area X5 is "00AA" and the information read from the update flag area Y5 is "0xBB", the determining unit 261 determines that the data area X=NG (step S549).

In step S547, if the information read from the update flag area X5 is not "00AA" and the information read from the update flag area Y5 is not "0xBB", the determination unit 261 determines that the information read from the update flag area X5 is "00BB". ' and the information read from the update flag area Y5 is '0xAA' (step S551). When the information read from the update flag area X5 is "00BB" and the information read from the update flag area Y5 is "0xAA", the determining unit 261 determines that the data area Y=NG (step S553).

The processing of steps S147-157 is as described above.

If none of steps S147 to S157 apply, that is, if data area X=OK and data area Y=OK, the determination unit 261 determines the type of update flag information read from the update flag area X5. (step S559), the reading surface is determined.

For example, when the update flag information read from the update flag area X5 is "0xBB", the determining unit 261 determines the data area Y as the reading surface (step S561).

On the other hand, when the update flag information read from the update flag area X5 is "0xAA", the determining unit 261 determines the data area X as the reading surface (step S563). Then, the automatic ticket gate 100 ends the reading process.

FIG. 21 is a flowchart showing an example of writing processing by the automatic ticket gate 100 in the third embodiment. First, the determining unit 261 determines the writing surface according to the reading surface (step S601). If the reading surface is the data area Y, or if there is no reading data for both the data areas X and Y, the determining unit 261 determines the writing surface to be the data area X (step S603). Then, the determination unit 261 determines the update flag information at the time of writing to be "0xAA" (step S609).

On the other hand, if the reading surface is the data area X in step S601, the determination unit 261 determines the writing surface to be the data area Y (step S611). Then, the determination unit 261 determines the update flag information at the time of writing to be "0xBB" (step S615).

While several embodiments of the invention have been described, these embodiments have been presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and modifications can be made without departing from the scope of the invention. These embodiments and their modifications are included in the scope and spirit of the invention, as well as the scope of the invention described in the claims and equivalents thereof.

DESCRIPTION OF SYMBOLS 1... Card medium, 2... Base material, 3... Two-dimensional code, 4... RFID tag, 100... Automatic ticket gate, 200... Main machine, 210... Reader-writer part, 220... Upper surface display part, 230... Front display part, 240 Door section 250 Door section 260 Control section 261 Determination section 262 Passability determination section 263 Passage control section 264 Reader/writer control section 265 Communication control section 266 Decoding process Department

Claims (13)

a communication unit for communicating with an electronic device having a first direction in which a reading direction and a writing direction are the same, and comprising a first data area and a second data area behind the first data area in the first direction;
a determination unit that determines a reading surface of the first data area or the second data area based on the information read from the electronic device by the communication unit;
a writing unit that writes predetermined information to the data area that is not determined as the reading surface by the determining unit when passage is permitted based on information read from the data area determined as the reading surface;
with
The writing unit
when writing information in the first data area, writing the first update flag information in first update flag areas immediately before and after the first data area in the first direction;
when writing information in the second data area, writing second update flag information different from the first update flag information in second update flag areas immediately before and after the second data area in the first direction;
When the first update flag information is written in the first update flag area, third update flag information different from the first update flag information and the second update flag information is written in the first update flag area. ,
When the second update flag information is written in the second update flag area, the fourth update flag information different from the first update flag information, the second update flag information, and the third update flag information is written to the write to the second update flag area;
Automatic ticket gate. The decision unit
When the first update flag information is written in the first update flag area and the second update flag information is written in the second update flag area, the second data area is read from the reading surface. decided to
When the third update flag information is written in the first update flag area and the second update flag information is written in the second update flag area, the first data area is read from the reading surface. decided to
When the third update flag information is written in the first update flag area and the fourth update flag information is written in the second update flag area, the second data area is read from the reading surface. decided to
When the first update flag information is written in the first update flag area and the fourth update flag information is written in the second update flag area, the first data area is read from the reading surface. decide to
The automatic ticket gate according to claim 1 . a communication unit for communicating with an electronic device having a first direction in which a reading direction and a writing direction are the same, and comprising a first data area and a second data area behind the first data area in the first direction;
a determination unit that determines a reading surface of the first data area or the second data area based on the information read from the electronic device by the communication unit;
a writing unit that writes predetermined information to the data area that is not determined as the reading surface by the determining unit when passage is permitted based on information read from the data area determined as the reading surface;
with
The writing unit
When writing information in the first data area, a third update flag area immediately before the first data area in the first direction and a second update flag area immediately after the first data area in the first direction and the second update flag area immediately before the first data area in the first direction. writing the first update flag information in the fourth update flag area immediately before the data area;
When information is written in the second data area, second update flag information different from the first update flag information is written in the fourth update flag area and in the fifth update flag area immediately after the second data area in the first direction. writing flag information or fifth update flag information different from the first update flag information and the second update flag information;
Automatic ticket gate. The decision unit
determining the first data area as the reading surface when the first update flag information is written in the third update flag area and the fourth update flag area;
determining the second data area as the reading surface when the second update flag information or the fifth update flag information is written in the fourth update flag area and the fifth update flag area;
The automatic ticket gate according to claim 3 . a communication unit for communicating with an electronic device having a first direction in which a reading direction and a writing direction are the same, and comprising a first data area and a second data area behind the first data area in the first direction;
a determination unit that determines a reading surface of the first data area or the second data area based on the information read from the electronic device by the communication unit;
a writing unit that writes predetermined information to the data area that is not determined as the reading surface by the determining unit when passage is permitted based on information read from the data area determined as the reading surface;
with
The writing unit
First update flag information and the first alternately writing second update flag information different from update flag information;
The decision unit
determining the first data area as the reading surface when the first update flag information is written in the sixth update flag area and the seventh update flag area;
determining the second data area as the reading surface when the second update flag information is written in the sixth update flag area and the seventh update flag area;
Automatic ticket gate. The decision unit
determining which of the first data area and the second data area, in which written information is normal, as the reading surface;
The automatic ticket gate according to any one of claims 1 to 5 . The decision unit
If the written information is normal in both the first data area and the second data area, the one with the newer timing of information writing is determined as the reading surface.
The automatic ticket gate according to any one of claims 1 to 6 . the computer
Communicating with an electronic device having a first direction in which a read direction and a write direction are the same, and comprising a first data area and a second data area after the first data area in the first direction;
determining a reading surface of the first data area or the second data area based on the information read from the electronic device;
When passage is permitted based on information read from the data area determined on the reading surface, writing predetermined information in the data area not determined on the reading surface;
when writing information in the first data area, writing the first update flag information in first update flag areas immediately before and after the first data area in the first direction;
when writing information in the second data area, writing second update flag information different from the first update flag information in second update flag areas immediately before and after the second data area in the first direction;
When the first update flag information is written in the first update flag area, third update flag information different from the first update flag information and the second update flag information is written in the first update flag area. ,
When the second update flag information is written in the second update flag area, the fourth update flag information different from the first update flag information, the second update flag information, and the third update flag information is written to the write to the second update flag area;
Passage control method. the computer
Communicating with an electronic device having a first direction in which a read direction and a write direction are the same, and comprising a first data area and a second data area after the first data area in the first direction;
determining a reading surface of the first data area or the second data area based on the information read from the electronic device;
When passage is permitted based on information read from the data area determined on the reading surface, writing predetermined information in the data area not determined on the reading surface;
When writing information in the first data area, a third update flag area immediately before the first data area in the first direction and a second update flag area immediately after the first data area in the first direction and the second update flag area immediately before the first data area in the first direction. writing the first update flag information in the fourth update flag area immediately before the data area;
When information is written in the second data area, second update flag information different from the first update flag information is written in the fourth update flag area and in the fifth update flag area immediately after the second data area in the first direction. writing flag information or fifth update flag information different from the first update flag information and the second update flag information;
Passage control method. the computer
Communicating with an electronic device having a first direction in which a read direction and a write direction are the same, and comprising a first data area and a second data area after the first data area in the first direction;
determining a reading surface of the first data area or the second data area based on the information read from the electronic device;
When passage is permitted based on information read from the data area determined on the reading surface, writing predetermined information in the data area not determined on the reading surface;
First update flag information and the first alternately writing second update flag information different from update flag information;
determining the first data area as the reading surface when the first update flag information is written in the sixth update flag area and the seventh update flag area;
determining the second data area as the reading surface when the second update flag information is written in the sixth update flag area and the seventh update flag area;
Passage control method. to the computer,
Communicate with an electronic device having a first direction in which a read direction and a write direction are the same, and comprising a first data area and a second data area after the first data area in the first direction;
determining a reading surface of the first data area or the second data area based on information read from the electronic device;
If passage is permitted based on the information read from the data area determined on the reading surface, writing predetermined information in the data area that is not determined on the reading surface ,
when writing information in the first data area, writing the first update flag information in the first update flag areas immediately before and after the first data area in the first direction;
when writing information in the second data area, writing second update flag information different from the first update flag information in second update flag areas immediately before and after the second data area in the first direction;
When the first update flag information is written in the first update flag area, third update flag information different from the first update flag information and the second update flag information is written in the first update flag area. height,
When the second update flag information is written in the second update flag area, the fourth update flag information different from the first update flag information, the second update flag information, and the third update flag information is written to the causing the second update flag area to be written;
program. to the computer,
Communicate with an electronic device having a first direction in which a read direction and a write direction are the same, and comprising a first data area and a second data area after the first data area in the first direction;
determining a reading surface of the first data area or the second data area based on information read from the electronic device;
If passage is permitted based on the information read from the data area determined on the reading surface, writing predetermined information in the data area that is not determined on the reading surface ,
When writing information in the first data area, a third update flag area immediately before the first data area in the first direction and a third update flag area immediately after the first data area in the first direction and the first update flag area causing the first update flag information to be written in the fourth update flag area immediately preceding the second data area;
When writing information in the second data area, a second update flag information different from the first update flag information is written in the fourth update flag area and a fifth update flag area immediately after the second data area in the first direction. writing update flag information or fifth update flag information different from the first update flag information and the second update flag information;
program. to the computer,
Communicate with an electronic device having a first direction in which a read direction and a write direction are the same, and comprising a first data area and a second data area after the first data area in the first direction;
determining a reading surface of the first data area or the second data area based on information read from the electronic device;
If passage is permitted based on the information read from the data area determined on the reading surface, writing predetermined information in the data area that is not determined on the reading surface ,
First update flag information and the first alternately writing the second update flag information different from the update flag information;
determining the first data area as the reading surface when the first update flag information is written in the sixth update flag area and the seventh update flag area;
If the second update flag information is written in the sixth update flag area and the seventh update flag area, determining the second data area as the reading surface;
program.

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