JP2009271565A - Identification means managing unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an identification means managing unit can surely decide the moving direction of an identification means. <P>SOLUTION: When a person, carrying a management card 9 having a mounted RFID tag 7, enters a room from a corridor, the RFID tag 7 is driven by the radiation waves transmitted from a transmitter 13-1, so as to transmit detection waves. The detection waves are received by a receiver 15-1 mounted on a second gate pole 5. Furthermore, when the person having the management card 9 enters the room, after passing through between a first gate pole 3 and the second gate pole 5, the RFID tag 7 is driven by the radiation waves transmitted from a transmitter 13-2 so as to transmit the detection waves. The detection waves are received by a receiver 15-2 mounted on the second gate pole 5. By analyzing the receiving sequence of the detection waves, transmitted from the RFID tag 7 by the receivers 15-1, 15-2, it is possible to surely decide, in which direction the person having the management card 9 has passed through a gate 2. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an identification unit management apparatus that manages movement of an identification unit, and particularly relates to a device that determines a moving direction of an identification unit.

  (1) A sales inventory management system (Japanese Patent Laid-Open No. 2003-128213), which is an example of a conventional gate system, will be described with reference to FIG. In the sales inventory management system PA100, a tag reader PA101 and an antenna gate PA102 for reading information written in RFID tags PA103 and PA105 as wireless tags are installed at the entrance / exit between the backyard side and the sales floor (store) side of the supermarket. ing.

  The RFID tag PA103 is attached to the carriage PA104, and product information relating to the product PA108 placed on the carriage PA104 is written. The RFID tag PA105 is attached together with a barcode label PA109 to a processed product PA107 placed on a processed product cart PA106 that carries the processed product.

  The product information that has passed through the antenna gate PA102 and read by the tag reader PA101 is wirelessly transmitted to the store server PA110, where various information management such as inventory management in the store is performed.

JP 2003-128213 A

  The aforementioned sales inventory management system PA100 has the following points to be improved. In the sales inventory management system 100, the tag reader PA101 reads information from the RFID tag PA105 that has passed through the antenna gate PA102. As an initial condition, if information indicating whether an article with the RFID tag PA105 exists in the room where the antenna gate PA102 is installed or exists outside is given, then the antenna tag PA102 is attached to the RFID tag PA105. If it is determined how many times it has passed, it can be determined whether the article with the RFID tag PA105 is present in the room or outside.

  However, since the RF wave used by the antenna gate PA102 diffuses from the transmission point, in some cases, the antenna gate PA102 does not pass through the antenna gate PA102, but the antenna gate PA102 exists in the presence of the RFID tag PA105. May be captured. That is, the antenna gate PA102 may detect the RFID tag PA105 even if the antenna gate PA102 does not pass through the RFID tag PA105. For this reason, there exists a point which should be improved that the management of the goods which attached RFID tag PA105 cannot be performed correctly.

  Therefore, an object of the present invention is to provide an identification means management apparatus that can reliably determine the moving direction of the identification means.

  Means for solving the problems relating to the present invention and effects of the present invention will be described below.

  In the present invention, the radiation wave transmitted by the transmitting means disposed on the one space side, having at least one transmitting means on each of the one space side and the other one space side. Among the arrival areas, a detection area that can be detected by the identification unit and a detection area of the transmission unit arranged on the other one space side do not overlap each other.

  Accordingly, it is possible to reliably determine the movement of the identification unit from the position space to the other space.

  In the present invention, the transmission means further transmits the radiation wave so that a transmission direction of the radiation wave and a boundary surface between the one space and the other space are not parallel to each other. It is characterized by.

  Accordingly, it is possible to reliably determine the movement of the identification unit from the position space to the other space.

  In the present invention, the transmission means further transmits the radiation wave in a direction in which the detection area of the radiation wave transmitted toward the transmission direction does not overlap the boundary surface. .

  Accordingly, it is possible to reliably determine the movement of the identification unit from the position space to the other space.

  In the present invention, the transmitting means transmits the radiated wave every predetermined period, and the transmitting means on the one space side and the transmitting means on the other space side are the identifying means, The time from receiving the radiated wave transmitted by the transmitting means on the one space side until receiving the radiated wave transmitted by the transmitting means on the other one space side is equal to or longer than the predetermined period. As described above, the radiation wave is transmitted.

  Thereby, the movement of the identification means from one space to another space can be reliably determined.

  In the present invention, it is preferable that one receiving unit receives the detection wave from the identifying unit, and the other receiving unit existing in a region different from the region in which the one receiving unit exists is the identifying unit. When it is determined that the detection wave from the first reception unit has been received, a moving direction determination unit that determines that the identification device has moved in the direction from the one receiving unit to the other receiving unit.

  Thereby, the movement of the identification means from one space to another space can be reliably determined.

  Here, the correspondence relationship between the elements described in the claims and the elements in the embodiment is shown. The identification means management device is in the gate system 1, the identification means is in the RFID tag 7, the transmission means is in the transmission sections 13-1 to 4 and the transmission reception sections 23-1 to 4, and the reception means are in the reception sections 15-1 and 15-. 2, 35-1, 35-2, the identification means moving direction determination device corresponds to the management device 21, and the gate device corresponds to the gate 2.

  The detection wave reception information acquisition means corresponds to the CPU 211, the memory 212, and the communication circuit 218, and the identification means movement direction determination means corresponds to the CPU 211 and the memory 212, respectively.

  The moving direction determination unit executes the processes of steps S511, S513, S521 to S525, S531 to S557, and S571 to S589.

  Examples of the gate device according to the present invention will be described below.

1. Outline An outline of a gate system 1 according to the present invention will be described with reference to FIG.

  (1) When a person having the management card 9 on which the RFID tag 7 is installed tries to enter the room from the hallway, the RFID tag 7 is connected to the transmitter 13-1 installed on the first gate pillar 3. Driven by the emitted radiation wave, it transmits a detection wave. This detected wave is received by the receiving unit 15-1 installed in the second gate pillar 5. Further, when a person having the management card 9 passes between the first gate column 3 and the second gate column 5 and enters the room, the RFID tag 7 transmits the transmission unit 13-2. Driven by the radiation wave, it transmits the detection wave. This detection wave is received by the receiving unit 15-2 installed in the second gate pillar 5.

  (2) On the other hand, when a person having the management card 9 tries to go out of the room to the hallway, the RFID tag 7 emits a radiated wave transmitted by the transmitter 13-2 installed in the first gate pillar 3 To transmit a detection wave. This detection wave is received by the receiving unit 15-2 installed in the second gate pillar 5. Further, when a person having the management card 9 passes between the first gate pillar 3 and the second gate pillar 5 and goes out of the room, the RFID tag 7 is connected to the transmitter 13-1. Driven by the emitted radiation wave, it transmits a detection wave. This detected wave is received by the receiving unit 15-1 installed in the second gate pillar 5.

  (3) Thus, the management card 9 in which the RFID tag 7 is installed is obtained by analyzing in which order the receiving units 15-1 and 15-2 have received the detection waves transmitted by the RFID tag 7. In which direction did the person who have the passage pass between the first gate pillar 3 and the second gate pillar 5, that is, whether they entered the room from the corridor, or went out of the room to the corridor? Can be reliably determined.

2. Configuration of Gate System 1 The configuration of the gate system 1 will be described with reference to FIG. The gate system 1 includes a gate 2 and a management device 21 (not shown). The gate 2 has a first gate pillar 3 and a second gate pillar 5. By using the gate system 1, it is possible to reliably grasp in which direction the person having the management card 9 in which the RFID tag 7 is installed has passed through the gate 2.

  The 1st gate pillar 3 and the 2nd gate pillar 5 are installed in the entrance / exit of a room, for example. Thereby, by using the gate 2, the movement of the person between the room which is the indoor space and the hallway which is the outdoor space can be managed through the movement of the management card 9 in which the RFID tag 7 is installed. .

  The RFID tag 7 in this embodiment uses a so-called passive type. Further, UHF waves are used as the radiation wave for driving the RFID tag 7 and the detection wave transmitted by the RFID tag 7.

2.1. Configuration of First Gate Column 3 The configuration of the first gate column 3 will be described with reference to FIG. 2 showing the XX cross section of FIG. The first gate column 3 is a columnar body, and its cross section is a pentagon formed by cutting off two square corners. The first gate pillar 3 has two transmitters 13-1 and 13-2.

  The transmitters 13-1 and 13-2 are arranged on slopes L <b> 1 and L <b> 2 that are formed at portions where two corners of a square are cut off. Further, the transmitters 13-1 and 13-2 are provided to face the second gate pillar 5. Furthermore, the transmitter 13-1 is disposed on the hallway side with respect to a boundary surface P <b> 1 between the room and the hallway passing through the center of the cross section of the first gate pillar 3 and the second gate pillar 5. Similarly, the transmitter 13-2 is arranged on the room side.

  By arranging the transmitters 13-1 and 13-2 in this manner, the transmission directions a1 and a2 of the radiant waves transmitted by the transmitters 13-1 and 13-2 are not parallel to the boundary surface P1. That is, the transmission directions a1 and a2 of the radiation waves transmitted by the transmission units 13-1 and 13-2 have an angle α and an angle β, respectively, with respect to the boundary surface P1. In addition, in this embodiment, the transmission parts 13-1 and 13-2 are arrange | positioned by the object with respect to the boundary surface P1. Therefore, angle α = angle β.

  In addition, detection areas R1 and R2, which are areas in which the RFID tag 7 can be detected, among the arrival areas of the radiant waves transmitted by the transmission units 13-1 and 13-2 in the transmission directions a1 and a2, respectively, Does not overlap with surface P1. Furthermore, the detection areas R1 and R2 of the radiant waves transmitted from the transmitting units 13-1 and 13-2 do not overlap each other.

  In the present embodiment, the angle α (= β) is about 15 degrees.

  Moreover, the transmission parts 13-1 and 13-2 are connected with the management apparatus 21, and can transmit / receive information mutually.

2.2. Configuration of Second Gate Column 5 The configuration of the second gate column 5 will be described with reference to FIG. The second gate column 5 is a columnar body, and its cross section is a pentagon formed by cutting off two square corners. The second gate pillar 5 has two receiving units 15-1 and 15-2.

  The receivers 15-1 and 15-2 are arranged on the slopes L <b> 3 and L <b> 4 that are formed at portions where two square corners are cut off. The receiving units 15-1 and 15-2 are provided to face the first gate pillar 3. Furthermore, the receiving unit 15-1 is provided to face the transmitting unit 13-1. Similarly, the receiving unit 15-2 is provided to face the transmitting unit 13-2. Furthermore, the receiving unit 15-1 is arranged on the hallway side with respect to the boundary surface P1. Similarly, the receiving unit 15-2 is arranged on the room side.

  By arranging the receiving unit 15-1 in this way, the radiation wave transmitted from the RFID tag 7 located on the hallway side can be easily detected by the receiving unit 15-1 arranged on the hallway side. The same applies to the receiving unit 15-2.

  The receiving units 15-1 and 15-2 are connected to the management device 21 and can transmit and receive information to and from each other.

2.3. Hardware Configuration of Management Device 21 The hardware configuration of the management device 21 will be described with reference to FIG. The management device 21 includes a CPU 211, a memory 212, a hard disk 213, a keyboard 214, a mouse 215, a display 216, an optical drive 217, and a communication control circuit 218.

  The CPU 211 performs processing based on other applications such as an operating system (OS) and an RFID tag management program recorded in the hard disk 213. The memory 212 provides a work area for the CPU 211. The hard disk 213 records and holds other applications such as an operating system (OS) and an RFID tag management program and various data. The hard disk 213 records and holds an entry / exit log. The entrance / exit log will be described later.

  The keyboard 214 and the mouse 215 accept external operations by the user or the like. A display 216 displays an OS, a user interface of an application, and the like.

  The optical drive 217 reads the RFID tag management program from the optical medium 210 in which the RFID tag management program is recorded, and reads other application programs from other optical media. Read. The communication circuit 218 performs transmission / reception of information via a network including reception of information from the reception units 15-1 and 15-2.

3. Entrance / exit log The entrance / exit log recorded and held by the hard disk 213 will be described with reference to FIG. The entrance / exit log is data that records the entrance / exit status of a person entering or exiting a room or area where a gate is installed.

  The entry / exit log has an identification ID information column C41, an entry / exit time column C43, and an entry / exit status column C45. In the identification ID information column C41, the identification ID information of the RFID tag 7 installed on the management card 9 possessed by the person who has entered / exited is entered, and in the entry / exit time column C43, the entry / exit time is entered. In the exit status column C45, the status of entry / exit, such as whether the person having the management card 9 has entered or exited, is described.

  The record 1 of the entrance / exit log shown in FIG. 4 indicates that the person having the management card 9 on which the RFID tag 7 having the identification ID information “0001” is installed has the time “January 15, 2008, 13:45:30” Shows a case where the user leaves the room where the gate is installed.

4. Operation of Gate System 1 The operation of the gate system 1 will be described with reference to the sequence diagram of FIG. As shown in FIG. 5, the CPU 211 of the management device 21 starts timing by the timer circuit along with the activation of the management program (S501), and determines that T0 seconds have passed (S503), the transmitters 13-1, 13- A transmission command is transmitted to 2 (S505). For example, in the case of the RFID tag 7 using the UHF wave, the CPU 211 uses 0.4 seconds as T0 seconds.

  When receiving the transmission command (S1301), the transmission unit 13-1 and the transmission unit 13-2 each transmit a radiant wave (S1303).

  The RFID tag 7 receives the radiation wave (S701) and transmits the detection wave W1 (S703). The RFID tag 7 includes its own identification ID information in the detection wave W1.

  When receiving the detection wave W1 from the RFID tag 7 (S1501), the reception unit 15-1 or the reception unit 15-2 extracts identification ID information of the RFID tag 7 from the received detection wave W1 (S1503). The receiving unit 15-1 or the receiving unit 15-2 transmits, to the management apparatus 21, receiving unit specifying information for specifying itself and detection wave receiving information including identification ID information for specifying the RFID tag 7 (S1505). .

  Then, when receiving the detected wave reception information (S511), the CPU 211 of the management device 21 executes an entrance / exit determination process (S513).

  Further, when the CPU 211 of the management device 21 determines that a predetermined time T1 seconds has elapsed (S521) by counting with the timer circuit (S521), the management table maintenance management process is executed (S525).

  The entrance / exit determination process (S513) and the management table maintenance process (S525) will be described later.

5. Operation of management device 21
5.1. Management Table The management device 21 executes entry / exit determination processing using the management table. Here, the management table will be described. The management table is a table for determining the movement of the RFID tag 7, that is, the moving direction of the person having the management card 9, and consequently the entrance / exit status. The management table is shown in FIG. The management table has an identification ID information column C51, an acquisition time column C53, and a receiving unit specifying information column C55. The identification ID information column C51 includes identification ID information of the RFID tag 7 included in the detection wave reception information, the acquisition time column C53 includes the acquisition time when the detection wave reception information is acquired, and the reception unit specification information column C55 includes The receiving unit specifying information of the receiving unit included in the detection wave reception information is described.

  Record 1 of the management table shown in FIG. 6 shows that the receiving unit having the receiving unit specifying information “receiving unit 15-1” sets the RFID tag 7 having the identification ID information “0001” to the time “January 15, 2008 13:00. A case where the detection is performed at “45 minutes 30 seconds 00” is illustrated.

5.2. Entrance / exit determination processing The entrance / exit determination processing performed by the CPU 211 of the management device 21 will be described with reference to the flowchart shown in FIG. As illustrated in FIG. 7, the CPU 211 of the management device 21 extracts identification ID information, reception unit identification information, and detection time from the received detection wave reception information, sets the identification ID information to “x”, and reception unit identification information. Are substituted into “p0”, respectively (S531). Further, the CPU 211 acquires the time when the receiving unit specifying information is received from the timer circuit, and substitutes it for “t0” (533).

  The CPU 211 searches for a record having “x” in the identification ID information column C51 of the management table (S535). When the CPU 211 determines that a corresponding record exists (S537), the CPU 211 extracts the corresponding record as an extracted record (S539). The CPU 211 acquires the value of the reception unit identification information sequence C55 of the extracted record and substitutes it for “p1” (S541).

  If the CPU 211 determines that “p0” and “p1” are different (S543), the value of “p0” is the receiving unit identification information corresponding to the receiving unit 15-1, and the value of “p1” is the receiving unit 15. -2 is determined as to whether or not the receiving unit specifying information corresponds to -2 (S551). If the CPU 211 determines that the value of “p0” is the receiving unit specifying information corresponding to the receiving unit 15-1, and the value of “p1” is the receiving unit specifying information corresponding to the receiving unit 15-2 (S551). Then, “x” is described in the identification ID information column C41 of the entry / exit log, “t0” is described in the entry / exit time column C43, and “entry” is described in the entry / exit status column C45 (S553). On the other hand, the CPU 211 determines that the value of “p0” is the receiving unit specifying information corresponding to the receiving unit 15-1, and the value of “p1” is not the receiving unit specifying information corresponding to the receiving unit 15-2 (S551). ), “X” is described in the identification ID information column C41 of the entry / exit log, “t0” is described in the entry / exit time column C43, and “exit” is described in the entry / exit status column C45 (S555).

  When the CPU 211 determines that “p0” is equal to “p1” in step S543, or when the description in the entry / exit log in steps S553 and S555 ends, the value of the reception unit specifying information column C51 of the extracted record Is updated to “p0”, the value C55 of the receiving unit specifying information sequence is updated to “p0”, and the value of the acquisition time sequence C53 is updated to “t0” (S557).

  On the other hand, if the CPU 211 determines that there is no corresponding record in step S537, the value of the identification ID information column C51 is “x”, the value C55 of the receiving unit specifying information column is “p0”, and the acquisition time column in the management table A record whose value C53 is “t0” is newly added (S545).

5.3. Specific Example of Entrance / Exit Determination Processing Here, a specific example of the entrance / exit processing will be described with reference to FIGS. As shown in FIG. 8, when a person holding the management card 9 having the RFID tag 7 having the identification ID information “0050” enters the radiation wave detection area R1, the RFID tag 7 transmits a detection wave W1. It is assumed that the receiving unit 15-1 that is the receiving unit specifying information “receiving unit 15-1” has detected the detection wave W1 transmitted by the RFID tag 7. In this case, the reception unit 15-1 transmits detection wave reception information having identification ID information “0050” and reception unit identification information “reception unit 15-1” to the management device 21. Upon receiving the detection wave reception information, the management device 21 acquires the received time, for example, the time “January 15, 2008, 13:50:30”. Based on the identification ID information “0050”, the acquisition time “January 15, 2008 13:50:30”, and the receiving unit specifying information “receiving unit 15-1”, the management device 21 is as shown in FIG. 9A. Add a record to the management table. In FIG. 9A, a record 51 is added. The entrance / exit log at this stage is shown in FIG. 9B.

  Returning to FIG. 8, the person having the management card 9 proceeds in the direction of arrow a4, passes through the gate 2, leaves the detection region R1 of the radiated wave transmitted by the transmitter 13-1, and the transmitter 13-2 transmits. When entering the radiation wave detection region R2, the RFID tag 7 transmits a detection wave W2. It is assumed that the receiving unit 15-2 that is the receiving unit specifying information “receiving unit 15-2” has detected the detection wave W2 transmitted by the RFID tag 7. In this case, the reception unit 15-2 transmits the detection wave reception information including the identification ID information “0050” and the reception unit identification information “reception unit 15-2” to the management device 21. Upon receiving the detection wave reception information, the management device 21 acquires the received time, for example, the time “January 15, 2008, 13:50:30” as the acquisition time. The management apparatus 21 extracts the record 51 from the management table based on the identification ID information “0050” of the received detection wave reception information, and acquires the identification ID information between the detection wave reception information and the record 51, the acquisition time The values of the receiving unit specifying information are respectively compared.

  As a result of the comparison, the value of the reception unit identification information is different, the value of the reception unit identification information of the record 51 is “reception unit 15-1”, and the value of the reception unit identification information of the detected wave reception information is “reception unit 15-2”. Therefore, it is determined that the RFID tag 7 has moved from the receiving unit 15-1 side to the receiving unit 15-1 side, that is, from the corridor to the room, that is, a person has entered the room.

  Therefore, the management apparatus 21 adds a record with the identification ID information “0050”, the entry / exit time “13: 50: 30: 30 on Jan. 15, 2008”, and the entry / exit status “entrance” to the entry / exit log. . In FIG. 9D, record 3 is added.

  Then, the CPU 211 updates the record 51 of the management table with each value of the detected wave reception information. FIG. 9E shows the management table in which the record 51 is updated.

5.4. Management Table Maintenance Management Process The management table maintenance management process is a process for maintaining and managing the management table used to determine entry / exit.

  The management table maintenance management process performed by the CPU 211 of the management apparatus 21 will be described with reference to the flowchart shown in FIG. As shown in FIG. 10, the CPU 211 reads one record from the management table into the memory 212, and substitutes the value of the identification ID information string in “x” and the value of the acquisition time string in “t1” (S571). ). The CPU 211 acquires the current time and substitutes it for “t0” (S573). The CPU 211 calculates the time from the acquisition time to the current time by “t0−t1” and substitutes it for “g” (S577).

  When the CPU 211 determines that “g” is longer than the predetermined time “T11” (S585), the CPU 211 deletes the record acquired in step S571 from the management table (S587).

  The CPU 211 executes the processes of steps S571 to S587 for all the records in the management table (S589).

  FIG. 11 shows a cross-sectional view of the gate system 20 in this embodiment corresponding to the XX cross section in FIG. In the above-described first embodiment, the first gate column 3 includes the transmitting units 13-1 and 13-2, and the second gate column 5 includes the receiving units 15-1 and 15-2, respectively. ing. On the other hand, in the present embodiment, the first gate pillar 3 includes transmission / reception units 23-1 and 23-2 having a transmission function of a radiated wave and a reception function of a detection wave, and transmission units 13-1 and 13-2. Is in the position where it was placed. The second gate pillar 5 has the same transmission / reception units 23-3 and 23-4 at the positions where the reception units 15-1 and 15-2 are arranged.

  The transmission / reception units 23-1, 23-2, 23-3, and 23-4 transmit radiation waves in the directions of arrows a21, a22, a23, and a24, respectively.

  Radiation wave detection region R21 transmitted and received by transmission / reception unit 23-1 in the direction of arrow a21 is not parallel to boundary surface P1. Further, the detection region R21 does not overlap with the boundary surface P1. The same applies to the detection areas R22, R23, and R24 of the radiated waves that the transmission / reception units 23-2, 23-3, and 23-4 transmit in the directions of arrows a22, a23, and a24.

  Further, the corridor-side transmission / reception units 23-1 and 23-3 respectively detect radiation areas P21 and P23 transmitted in the directions of arrows a21 and a23, and the room-side transmission / reception units 23-2 and 23-4. However, the radiation wave detection areas P22 and P24 transmitted in the directions of arrows a22 and a24 do not overlap each other.

  In this way, by emitting radiant waves from a plurality of directions, the detection area of the radiant waves (R21 + R23, R22 + R24) on the corridor side and the room side compared to the case where there is one transmitting part on the corridor side and the room side. Can be widened. Therefore, the movement of the person having the management card 9 on which the RFID tag 7 is installed can be managed more reliably.

  FIG. 12 shows a cross-sectional view of the gate system 30 in this embodiment corresponding to the XX cross section in FIG. In the above-described first embodiment, the first gate column 3 includes the transmitting units 13-1 and 13-2, and the second gate column 5 includes the receiving units 15-1 and 15-2, respectively. Yes. On the other hand, in the present embodiment, the first gate column 3 includes the transmitters 13-1 and 13-2 as in the first embodiment, but the second gate column 5 is formed in the first embodiment. Unlike the above, the transmitters 13-3 and 13-4 are provided. The position where the second gate pillar 5 has the transmitters 13-3 and 13-4 is the same as the positions of the receivers 15-1 and 15-2 in the first embodiment.

  In addition, the gate system 30 includes reception units 35-1 and 35-2 on the hallway ceiling on the hallway side and on the room ceiling on the room side, respectively. The receiving unit 35-1 receives the detection wave transmitted from the RFID tag 7 that operates by the radiation wave transmitted from the transmission units 13-1 and 13-2. In addition, the receiving unit 35-2 receives a detection wave transmitted from the RFID tag 7 that operates by the radiation wave transmitted from the transmission units 13-3 and 13-4.

  Thus, by arranging the receiving unit separately from the first gate column 3 and the second gate column 5, the receiving unit can be arranged at a position where a person is expected to pass most. Therefore, the movement of the person having the management card 9 on which the RFID tag 7 is installed can be managed more reliably.

  FIG. 13 shows a cross-sectional view of the gate system 40 in this embodiment corresponding to the XX cross section in FIG. In the first to third embodiments, each gate device has the first gate pillar 3 and the second gate pillar 5. The gate device 40 in this embodiment has only the first gate pillar 3. The configuration of the first gate pillar 3 is the same as that of the first embodiment.

  Further, the gate system 40 includes receiving units 35-1 and 35-2 similar to those in the third embodiment.

  Thus, in the gate system 40, the movement of the person who passes the boundary surface P1 can be managed only by the first gate column 3 without the need for the second gate column 5. Therefore, even in a narrow place where there is no space for placing the receiving gate 5, for example, a place where an entrance to the room is provided at the end of the hallway, the management card 9 on which the RFID tag 7 is surely installed is installed. The movement of the person who has it can be managed.

  FIG. 14 shows a cross-sectional view of the gate system 50 in this embodiment corresponding to the XX cross section in FIG. In the above-described third embodiment, the transmitting units 13-1 to 13-4 each transmit the radiant wave in a direction not parallel to the boundary surface P1 (see FIG. 8).

  On the other hand, in the present embodiment, each of the transmitting units 13-1 to 13-4 has a direction in which the radiation wave is not parallel to the boundary surface P1, and the RFID tag 7 is, for example, the corridor-side transmitting unit 13-1. The direction from the time when the transmitted radiation wave is received until the time when the room-side transmitting unit 13-2 receives the radiation wave is longer than the general scan interval of the detection wave in the system using the RFID tag A radiant wave is transmitted in the directions of arrows a51 to a54. The general scan interval of the detection wave in the system using the RFID tag is about 0.4 seconds at the time of filing.

When the transmitting units 13-1 to 13-4 transmit the radiation waves in such a direction, the RFID tag 7 generally receives the radiation waves in the detection regions R1 to R4 of the transmitting units 13-1 to 13-4, and the detection waves are detected. In general, the distance d from the position where the RFID tag 7 receives the radiation wave to the position where the detection wave is transmitted can be increased in the detection region R2 of the transmission unit 13-2. Therefore, the movement of the person having the management card 9 on which the RFID tag 7 is installed can be managed more reliably.

[Other Examples]
(1) In the first embodiment described above, the transmitters 13-1 and 13-2 are provided on the slopes L 1 and L 2 of the first gate pillar 3, and the receiver 15-is provided on the slopes L 3 and L 4 of the second gate pillar 5. 1, 15-2 were arranged respectively. However, a plurality of transmitters and receivers may be provided on each of the slopes L1 to L4. By providing a plurality of transmitters and receivers for each slope, the RFID tag 7 can be more reliably driven by a radiant wave, and a detection wave from the RFID tag 7 can be detected more reliably. The same applies to Example 2 to Example 5.

  (2) In the first embodiment, the operation of the management device 21 is realized by controlling the CPU 211 by software. However, the operation of the management device 21 may be realized by a combination of hardware logic circuits and the like.

  (3) In the first embodiment described above, the management table is used for determining the movement of the RFID tag 7, but the management table may not be used. For example, you may make it analyze the detection log of a receiving part.

  Further, even if the management table is used, the management table is not limited to the illustrated example as long as the receiving units 15-1 and 15-2 can analyze in which order the detection waves from the RFID tag 7 are detected.

  (4) In the second embodiment, the transmission / reception units 23-1 to 23-4 are provided in the first gate column 3 and the second gate column 5, but the first gate column 3 or the second gate is provided. You may make it provide in the pillar 5. FIG.

  (5) In the third embodiment, the receiving units 35-1 and 35-2 are provided on the ceiling of the room or the hallway. It is not limited.

  (6) In the above-described fourth embodiment, a radio wave absorber may be installed on the wall of the hallway facing the first gate column 3. By installing the radio wave absorber, reflection from the wall can be suppressed, so that erroneous detection can be prevented.

(7) In the fifth embodiment, the transmission directions of the radiation waves of the transmitters 13-1 to 4 are shown based on the third embodiment, but may be applied to the first to fourth embodiments.

It is a figure which shows the gate system 1 which concerns on Example 1 of the identification means management apparatus in this invention. It is the figure which showed the XX cross section in FIG. 2 is a diagram illustrating a hardware configuration of a management device 21. FIG. It is the figure which showed the data structure of the entrance / exit log. 6 is a sequence diagram for explaining the operation of the gate system 1. FIG. It is the figure which showed the data structure of the management table. It is a flowchart of an entrance / exit process. It is a figure for demonstrating the specific example of an entrance / exit process. It is a figure for demonstrating the specific example of an entrance / exit process. It is a flowchart of a management table maintenance management process. It is a figure which shows the gate system 20 which concerns on Example 2 of the identification means management apparatus in this invention. It is a figure which shows the gate system 30 which concerns on Example 3 of the identification means management apparatus in this invention. It is a figure which shows the gate system 40 which concerns on Example 4 of the identification means management apparatus in this invention. It is a figure which shows the gate system 50 which concerns on Example 5 of the identification means management apparatus in this invention. It is a figure for demonstrating the conventional identification means management apparatus.

Explanation of symbols

1, 20, 30, 40, 50 ... Gate system 2 ... Gate 3 ... First gate pillar 5 ... Second gate pillar 7 ... RFID tag 9 ... management card 13-1, 2 ... transmission unit 15-1, 2 ... reception unit 21 ... management device P1 ... boundary Surfaces R1 to R4... Detection areas 23-1 to 4... Transmission / reception parts R21 to R24... Detection areas 13-3, 4. 2 ... Receiver

Claims (10)

In the identification means management device for managing the movement of the identification means between one space and another space, with respect to the identification means for transmitting a detection wave by receiving a radiation wave,
Transmitting means for transmitting the radiation wave;
Receiving means for receiving the detected wave from the identifying means;
An identification means management device comprising:
The identification means management device includes:
Each of the one space side and the other one space side has at least one transmission means;
The detection area which is an area in which the identification means can be detected among the arrival areas of the radiant waves transmitted by the transmission means arranged on the one space side, and the arrangement arranged on the other one space side The detection area of the transmitting means does not overlap each other;
An identification means management device characterized by the above. In the identification means management apparatus according to claim 1,
The transmitting means further includes
Transmitting the radiation wave so that the transmission direction of the radiation wave and a boundary surface between the one space and the other space are not parallel to each other;
An identification means management device characterized by the above. In the identification means management apparatus according to claim 2,
The transmitting means further includes
Transmitting the radiation wave in a direction in which the detection area of the radiation wave transmitted toward the transmission direction does not overlap the boundary surface;
An identification means management device characterized by the above. In the identification means management apparatus according to claim 3, further,
The transmitting means is
Transmitting the radiated wave every predetermined period,
The transmitting means on the one space side and the transmitting means on the other one space side are:
The time from when the identifying means receives the radiated wave transmitted by the transmitting means on the one space side to the time when the radiated wave transmitted by the transmitting means on the other one space side is received, Transmitting the radiation wave so as to be a predetermined period or longer,
An identification means management device characterized by the above. In the identification means management apparatus according to claims 1 to 4,
One receiving unit receives the detection wave from the identifying unit, and then another receiving unit existing in a region different from the region in which the one receiving unit is present detects the detection from the identifying unit. When it is determined that a wave has been received, an identification unit movement direction determination device that determines that the identification device has moved in the direction from the one reception unit to the other reception unit,
An identification means management device. In the identification means moving direction determination device for determining the movement of the identification means between one space and another space, with respect to the identification means for transmitting a detection wave by receiving a radiation wave,
Detection wave reception information acquisition means for acquiring detection wave reception information indicating that the detection wave has been received from the identification means,
One reception unit acquires detection wave reception information indicating that the detection wave from the identification unit has been received, and then another one existing in a region different from the region where the one reception unit exists When it is determined that the reception unit has acquired detection wave reception information indicating that the detection unit has received the detection wave, the identification device has moved in the direction from the one reception unit to the other reception unit. Moving direction determination means for determining,
An identification means management device. In the gate device that detects the movement of the identification means between one space and the other space, with respect to the identification means that transmits a detection wave by receiving a radiation wave,
Transmitting means for transmitting the radiation wave;
Receiving means for receiving the detected wave from the identifying means;
A gate device comprising:
The gate device is
A plurality of the transmission means;
Each of the one space side and the other one space side has at least one transmission means;
The detection area which is an area in which the identification means can be detected among the arrival areas of the radiant waves transmitted by the transmission means arranged on the one space side, and the arrangement arranged on the other one space side The detection area of the transmitting means does not overlap each other;
A gate device characterized by. The gate device according to claim 7,
The transmitting means further includes
Transmitting the radiation wave so that the transmission direction of the radiation wave and a boundary surface between the one space and the other space are not parallel to each other;
A gate device characterized by. The gate device according to claim 8,
The transmitting means further includes
Transmitting the radiation wave in a direction in which the detection area of the radiation wave transmitted toward the transmission direction does not overlap the boundary surface;
A gate device characterized by. The gate device according to claim 9, further comprising:
The transmitting means is
Transmitting the radiated wave every predetermined period,
The transmitting means on the one space side and the transmitting means on the other one space side are:
The time from when the identifying means receives the radiated wave transmitted by the transmitting means on the one space side to the time when the radiated wave transmitted by the transmitting means on the other one space side is received, Transmitting the radiation wave so as to be a predetermined period or longer,
A gate device characterized by.

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