JP6131671B2 - Exit / exit management system, exit / exit management method, and exit / exit management program - Google Patents

Description

  The present invention relates to an exit / exit management system, an exit / exit management method, and an exit / exit management program.

  2. Description of the Related Art Time stamping has been conventionally performed as a method for managing attendance. Further, attendance management is performed online by holding a non-contact type IC card over a time card reader / writer.

  For example, an IC tag in which identification information for identifying the dispatch destination is written for each dispatch destination where the temporary employee works. A temporary employee has a function that can read the information of the IC tag and possesses a mobile phone in which his / her ID is registered, and when he / she goes to the dispatch destination or leaves the dispatch destination, the IC The identification information of the tag is read into the mobile phone. Then, the read identification information, the time information when the identification information is read, and the ID are transmitted from the mobile phone to the server. In the server, there is a technique in which, based on such information, the leaving / leaving information of the temporary staff represented by the information is written in the leaving / leaving information DB (see, for example, Patent Document 1).

  In addition, at least identification information unique to each unit facility for which attendance management is performed is recorded, and a portable terminal that wirelessly communicates with an IC tag provided at the workplace, and at least the terminal information of the portable terminal is the name of the worker And an attendance management server registered in advance as a database. The portable terminal transmits at least the read identification information of the IC tag and the terminal information of the portable terminal to the attendance management server. As the attendance management server, an attendance management system that performs a time stamping process for the worker based on information transmitted from the mobile terminal 10 is known (for example, see Patent Document 2).

  In addition, the temporary staff or temporary staff who requested the dispatch of the temporary staff possesses an IC card with a card ID and identification code. Along with receiving and managing the attendance data stamped by the mobile phone by reading the IC card, a third party data center with no interest has written and stamped the data on the IC card. Technology exists (see, for example, Patent Document 3).

JP 2007-048127 A JP 2005-222273 A JP 2008-310474 A

  Among the above-described conventional attendance management systems, in a system in which an IC tag or the like is placed at a workplace, attendance management can be realized without installing a attendance management system at the workplace. When the mobile phone is held over the IC tag, the mobile phone communicates with the center in real time using the communication function of the mobile phone, whereby attendance management is performed on the center side.

  However, in such a system, real-time communication is not possible in places outside the communication area of mobile terminals such as underground and depopulated areas. For this reason, it is difficult to grasp an accurate time stamp. For example, when real-time communication cannot be performed outside the communication range and the internal clock of the mobile device is used, it is easy for the owner of the mobile device to change the internal clock setting of the mobile device and make an unauthorized stamp Can be done. Further, if the IC card can be duplicated, it is possible to perform improper stamping at another location.

  In addition to attendance management, there is a need to manage the time at which a person is located at a predetermined location, such as distribution of numbered tickets and checkpoints for marathons.

  In one aspect, the present invention relates to a case in which a mobile terminal is out of communication range, an IC card is copied, etc., when performing exit / exit management using a mobile terminal possessed by a person subject to exit management. The purpose is to simply take countermeasures against abnormal stamping that may occur.

  According to one aspect of the embodiment, the tag includes a tag, a plurality of portable terminals, and a management device that communicates with the plurality of portable terminals, and each of the plurality of portable terminals includes the When the portable terminal is held over the tag, the stamping time specifying unit that specifies the stamping time by the internal clock of the portable terminal, the reading unit that reads the sequence number from the tag, and the read sequence number are updated. And a writing unit for writing to the tag, the sequence number, the stamping time, and a transmitting unit for transmitting the identification information of the portable terminal in association with each other to the management device. Is based on the sequence number received from each of the plurality of mobile terminals, the time stamped, and the identification information of the mobile terminal, the reliability of each of the plurality of mobile terminals may be reduced Have an internal clock Including mobile terminal identification unit that identifies a band terminal, projecting and retracting the management system is provided.

  According to the embodiment, it is possible to easily take measures against an improper time stamp that may occur when performing exit / exit management using a mobile terminal possessed by a person to be managed for exit / exit management.

The block diagram which shows the outline | summary of one Embodiment. The block diagram which shows the example of one Embodiment. The flowchart which shows the outline | summary of operation | movement of one Embodiment. The figure which shows the example of an attendance history table. The flowchart which shows the example of judgment by a sequence number and stamping time. The flowchart which shows the example which judges the difference of the time of a portable terminal, and the time of a management server. The figure which shows the example of an attendance history table. The flowchart which corrects the time stamp of the last sequence number and performs re-determination. The figure which shows the hardware constitutions of one Embodiment.

  Hereinafter, embodiments will be described with reference to the drawings. In the drawings, the same reference numerals may be given to the same elements even in different drawings.

  In the embodiment, explanation will be given mainly by taking attendance management as an example. However, the embodiment is not limited to the use of attendance management. For example, as described above, various embodiments can be used for managing the time at which a person is located at a predetermined place, such as distribution of numbered tickets and checkpoints for marathons. Moreover, although each embodiment demonstrates taking work as an example, it cannot be overemphasized that it can utilize similarly in management of leaving work.

  FIG. 1 shows an overview of an embodiment. The system of the embodiment includes a tag 110, a mobile terminal 120, and a management server 140. Then, the mobile terminal 120 and the management server 140 can be connected via the network 130. The management server 140 is an example of a management device.

  A typical example of the tag 110 is an IC card, but is not limited thereto. The tag 110 only needs to be able to communicate (111) with the mobile terminal 120 and exchange data with the mobile terminal. Moreover, as for the communication 111, although it is desirable for the tag 110 and the portable terminal 120 to be able to communicate in a non-contact manner, the contact communication may be used. The communication 111 may use electromagnetic waves, light, sound, a magnetic field, an electric field, or the like.

  The portable terminal 120 may be any device that can communicate with the management server 140 via a network and can communicate with the tag 110.

  The management server 140 communicates with the mobile terminal 120 via the network 130. Note that the network 130 between the mobile terminal 120 and the management server 140 need not always be connected. The portable terminal 120 and the management server 140 only need to be able to transmit data when the network 130 is connected. The management server 140 may be installed with software used for attendance management and the like, and can output the attendance management output to a display, a printer, or the like as necessary.

  The management server 140 preferably stores a correspondence relationship between the identification information of the mobile terminal 120 and the identification information (name, etc.) of the owner. Using this correspondence relationship, the owner of the mobile terminal 120 can be specified.

  FIG. 2 is a block diagram illustrating an example embodiment. The system of this embodiment includes a tag 110, a mobile terminal 120, and a management server 140.

  The portable terminal 120 includes a time stamp specifying unit 202, a reading unit 204, a writing unit 206, a terminal identification information storage unit 208, an internal clock 203, an interface 220, and a transmission unit 210.

  The interface 220 has a function for performing communication 111 with the tag 110. The time stamp specifying unit 202 acquires the time from the internal clock 203 when the interface 220 and the tag 110 start communication, for example. The time stamp specifying unit 202 specifies the acquired time as the time stamp. The identified time is sent to the transmission unit 210. An example of the opportunity for the interface 220 and the tag 110 to start communication is when the portable terminal is held over the tag.

  When the communication 111 is, for example, Bluetooth (registered trademark) or the like and covers a relatively wide communication area, the communication may be started when the mobile terminal 120 enters the communication area. Then, the time when the communication is started may be specified as the time of stamping.

  When the communication 111 that covers a relatively large area is used, it is possible to check that the person who owns the terminal has left the work place by periodically checking the communication 111. By sending the time when the communication 111 is interrupted to the management server, it is possible to manage the leaving time and the going-out time without holding the portable terminal over the tag.

  The internal clock 203 is also connected to the transmission unit 210 and is used when the transmission unit 210 transmits the transmission time to the management server 140.

  The reading unit 204 reads information stored in the tag 110 via the interface 220. Examples of information to be read include a sequence number and tag identification information. The read sequence number is given to the writing unit 206 and the transmitting unit 210. Further, the identification information of the read tag is given to the transmission unit 210.

  The writing unit 206 updates (for example, increments) the read sequence number and writes the sequence number to the tag 110 via the interface 220. Note that the sequence number only needs to know the update order. Therefore, the sequence number does not necessarily have to be a number. The purpose of using the sequence number will be described later.

  The terminal identification information storage unit 208 provides at least identification information of the portable terminal to the transmission unit. The identification information of the portable terminal can be used for the purpose of identifying the owner in addition to the purpose of identifying the portable terminal.

  The transmission unit 210 transmits at least the time stamp, the sequence number, and the terminal identification information to the management server. The transmission unit 210 may transmit the identification information of the tag 110 to the management server. For example, when there are a plurality of employers or when the employer area is wide, a plurality of tags 110 may be used. By sending the identification information of the tag 110 together with the management server, attendance management at each of a plurality of places can be performed.

  It should be noted that it is desirable that a rule be determined in advance so that either the sequence number before update or the sequence number after update is sent. The transmission unit transmits either the sequence number before the update or the sequence number after the update to the management server according to the predetermined rule.

  Further, different tags 110 may be used for time stamping and for time stamping. The management server can determine whether to go to work or leave from the identification information of the tag 110.

  In addition, when the management server 140 performs attendance management for a plurality of companies, the company can be identified by the identification information of the tag 110.

  When this embodiment is used for purposes other than attendance management, such as checkpoints for marathon and numbered ticket distribution, the purpose of use is specified by the identification information of the tag 110, and appropriate processing is performed by the management server 140. Can be executed.

  The management server 140 in FIG. 2 includes a mobile terminal identification unit 250, a reception unit 260, a reception time identification unit 270, and a server management clock 280.

  The receiving unit 260 receives a signal via the network 130 from the transmitting unit 210 of the mobile terminal 120. The receiving unit notifies the reception time specifying unit 270 that reception has been performed in order to specify the reception time.

  The reception time specifying unit 270 specifies the reception time using the server management clock 280 under the management of the management server. There is a delay in the network 130. Therefore, the time when the transmission unit 210 performs transmission and the time when the reception unit 260 performs reception do not exactly match. Therefore, the delay time of the network 130 may be measured for each mobile terminal, and the reception time may be corrected using the measured delay time. When the Internet is used as the network 130, the delay time of the network 130 may be measured for each portable terminal 120 using ping or other tools.

  The mobile terminal specifying unit 250 includes, for example, a first determination unit 252, a second determination unit 254, and a time correction unit 256.

  The mobile terminal specifying unit 250 can specify a mobile terminal in which the setting of the internal clock 203 of the mobile terminal 120 may be illegally changed. In addition, the mobile terminal specifying unit 250 can specify a mobile terminal in which the internal clock 203 of the mobile terminal 120 may be shifted from an accurate time.

  The operation of the first determination unit 252 will be described in detail with reference to FIG. The operation of the second determination unit 254 will be described in detail with reference to FIG. The operation of the time correction unit 256 will be described in detail with reference to FIG.

  FIG. 3 is a flowchart showing an outline of the operation of the embodiment. FIG. 3A shows an example of the operation of the mobile terminal 120.

  In step 302, the time stamp identifying unit 202 identifies the time stamp when the mobile terminal 120 is held over the tag 110.

  In step 304, the reading unit 204 reads the sequence number from the tag 110 and gives the sequence number to the writing unit 206.

  In step 306, the writing unit 206 updates (for example, increments) the sequence number and writes it in the tag 110. In tag 110, the sequence number can be overwritten. By overwriting, the memory capacity of the tag 110 can be saved.

  In step 308, the transmission unit 210 determines whether transmission is possible. This step 308 is repeated until transmission is possible. If transmission is possible, the process proceeds to step 310.

  In step 310, the transmission unit 210 transmits at least the time stamp, the sequence number, and the terminal identification information to the management server 140. The transmission unit 210 may transmit the identification information of the tag 110 and the transmission time to the management server 140.

  FIG. 3B shows an example of the operation of the management server 140.

  In step 350, the management server 140 receives at least the time stamp, sequence number, and terminal identification information from the mobile terminal 120. The identification information of the tag 110 and the transmission time may be received from the mobile terminal 120.

  In step 352, the reception time specifying unit 270 specifies the reception time.

  FIG. 4 shows an example of the attendance history table 1. The attendance history table 1 includes attendees 402, tag identification information 404, sequence number 406, mobile terminal identification information 408, time stamp 410, mobile terminal transmission time 412, management server reception time 414, determination 1 (416), and determination. 2 (418).

  The sequence numbers 406 are arranged in ascending order. Therefore, the sequence number 7 is input to the entry 421 and the sequence number 8 is input to the entry 431.

  Normally, when the sequence number 406 increases, the time stamp 410 also increases. However, the entry 422 of the time stamp 410 is 8:35, the entry 432 is 8:30, and the time is decreasing. The amount of decrease is 5 minutes. In this case, it is determined that the value of entry 432 is likely to have illegally changed the setting of the internal clock of the mobile phone. For example, assuming that the threshold value is 3 minutes and the amount of time decrease exceeds the threshold value, it is determined that the set value of the internal clock has been changed, and Error may be entered in the entry 433 of determination 1 (416).

  Further, attention is paid to the difference between the entry 455 at the mobile terminal transmission time 412 and the entry 456 at the management server reception time 414. The value of entry 455 is 17:50, and the value of entry 456 is 17:48. The absolute value of the difference between these entries is 2 minutes. For example, when the threshold is 1 minute and the absolute value of the difference between the mobile terminal transmission time 412 and the management server reception time 414 exceeds the threshold of 1 minute, it may be determined that the internal clock of the mobile terminal 120 is incorrect. . Since the absolute value of the difference between these entries is 2 minutes and exceeds the threshold value of 1 minute, Alarm may be entered in the entry 457 of decision 2 (418).

  As described above, it is possible to manage attendance by using the attendance history table, and to detect and manage an illegal setting or error of the internal clock 203 of the mobile terminal 120.

  FIG. 5 is a flowchart showing an example of determination based on the sequence number and the stamping time.

In step 502, the first determination unit 252 determines the embossing time _{T n-1} of the sequence number n-1, the value obtained by subtracting the embossing time _{T n} of the sequence number n is, whether more than a threshold Th1 to (this determination, the value obtained by subtracting the T _n-1 from the T _n is a case of a negative, the absolute value of the subtracted value is the same as the determination of whether more than a threshold Th1.). As the threshold Th1, in the case of the above-mentioned example, 3 minutes was used. The threshold may be zero. If this determination is “Yes”, the process proceeds to Step 506. If this determination is “No”, the process proceeds to Step 504.

  In step 506, Error is returned and, for example, Error is entered in the entry of sequence number n in decision 1 (416) in FIG. It is determined that there is a high possibility that the terminal in which this error is entered has the internal clock 203 set improperly.

  In step 504, OK is returned. In this case, it is determined that the setting of the internal clock 203 is normal.

  As described above, it is possible to identify a mobile terminal that is highly likely to have been set incorrectly in the internal clock 203 of the mobile terminal 120.

  FIG. 6 is a flowchart illustrating an example of determining the difference between the time of the mobile terminal 120 and the time of the management server 140.

In step 602, the second determination unit 254 determines whether or not the absolute value of the difference between the management server reception time 414 (T _nb ) and the mobile terminal transmission time 412 (T _na ) exceeds the threshold Th2. If this determination is “Yes”, the process proceeds to Step 606. If this determination is “No”, the process proceeds to Step 604.

In step 606, Alarm is returned. In this case, the absolute value of the difference between the mobile terminal transmission time 412 (T _na ) and the management server reception time 414 (T _nb ) is larger than the threshold value Th2. In this case, there is a high possibility that the internal clock 203 of the mobile terminal 120 is incorrect.

  In the case of this embodiment, it is not determined that the internal clock is set illegally, but is determined to be an error. The reason is as follows. When setting the internal clock illegally, for example, an operation is often performed in which the internal clock is illegally changed just before the start of work, and the internal clock is returned to normal after being stamped. Therefore, there are many cases where inconsistency occurs between the sequence number and the stamping time at the start of work when the stamping is concentrated.

  On the other hand, when the internal clock is incorrect, Alarm often continues to occur relatively regularly (that is, every time it is stamped) in the mobile terminal. For example, at the time of engraving, if the mobile terminal is out of the communication range, the transmission time of the mobile terminal is sent to the management server 140 when the mobile terminal enters the communication range. In many cases, the time at which this communication is performed is a time at which a certain time has elapsed from the start time. Therefore, when Alarm is returned, it is estimated that the possibility that the setting of the portable terminal is intentionally operated is low.

  If the mobile terminal is within the communication range at the time of stamping, it is assumed that both the above-described Error and Alarm may be returned. In this case, since communication is performed in real time, the time of the clock managed by the management server 140 may be handled as the time of stamping.

  In the case where Alarm occurs regularly (for example, several days) in a specific terminal, and the difference between the time of the mobile terminal and the time of the management server 140 is stable, the difference is used. Then, the time stamped on the portable terminal may be corrected (not shown).

  FIG. 7 shows an example of the attendance history table. The part different from FIG. 4 is the time of entry 723. In FIG. 4, the value of the entry 423 is 16:04, but in FIG. 7, the value of the entry 723 is 16:09.

  The mobile terminal transmission time 412 of Mr. B's mobile terminal in which the sequence number 7 is entered in the entry 721 is 16:09 as described in the entry 723. The entry 724 of the management server reception time 414 is 16:03.

  In this case, the value obtained by subtracting the management server reception time 414 from the portable terminal transmission time 412 is 6 minutes. In this case, there is a high possibility that the internal clock 203 of Mr. B's mobile terminal 120 has advanced by 6 minutes. For this reason, although the entry 722 of the time stamp 410 is 8:35, the more accurate time stamp is likely to be 8:29 six minutes ago, and may be corrected.

  As described above, when the time stamp 410 of the mobile terminal 120 of Mr. B is corrected, the entry 732 of the time stamp 410 of the mobile terminal of Mr. C described in 8 in the entry 731 of the sequence number 406 is entered. The value 8:30 is a consistent time stamp.

  In consideration of the above circumstances, Error is entered in entry 433 in FIG. 4, but OK is entered in entry 733 in FIG.

  For example, the above-described determination can be performed by executing the following procedure. First, as shown in FIG. 4, in determination 1 (416), the sequence number 8 of the entry 433 in which Error exists is specified. Then, in the sequence number 7 immediately before that, the value of the time stamp 410 is corrected as follows.

  Hereinafter, a description will be given with reference to FIG. First, a value α obtained by subtracting the management server reception time 414 (entry 724) from the mobile terminal transmission time 412 (entry 723) of the sequence number 7 is obtained. Next, the value obtained by subtracting α from the stamping time 410 (entry 722) of the sequence number 7 is set as the corrected stamping time of the sequence number 7. If the value obtained by subtracting the time stamp 410 (entry 732) of the sequence number 8 from the corrected time stamp of the sequence number 7 does not exceed the first threshold (for example, 3 minutes), the sequence number 8 It is determined that the time stamp 410 (entry 732) is valid (OK). Since the absolute value 6 of α exceeds the second threshold value (for example, 1 minute), Alarm is entered in the entry 725 of determination 2 (418).

  FIG. 8 is a flowchart in which the time stamp of the immediately preceding sequence number is corrected and re-determination is performed, and the above-described determination is made into a flowchart.

In step 802, the first determination unit 252 determines the embossing time _{T n-1} of the sequence number n-1, the value obtained by subtracting the embossing time _{T n} of the sequence number n is, whether more than a threshold Th1 To do. As the threshold Th1, in the case of the above-mentioned example, 3 minutes was used. The threshold may be zero. If this determination is “Yes”, the process proceeds to Step 804. If this determination is “No”, the process proceeds to Step 812.

In step 804, the time correction unit 256 sets α to a value obtained by subtracting the management server reception time T _{(n−w) b} from the mobile terminal transmission time T _{(n−1) a} in the sequence number n−1. In addition, in order to correct the embossing time _{T n-1} of the sequence number _n-1, calculates the _{T n-1 -α,} to the calculation result as a new embossing time _{T n-1.}

  In Step 806, the second determination unit 254 determines whether or not the absolute value of α exceeds the second threshold Th2. If this determination is “Yes”, the process proceeds to Step 808. If this determination is “No”, the process proceeds to Step 810.

  In step 802, Alarm is returned to the mobile terminal 120 having the sequence number n-1. In this case, the absolute value of α is larger than the threshold Th2. In this case, there is a high possibility that the internal clock 203 of the mobile terminal 120 with the sequence number n-1 is incorrect.

In step 810, whether or not the first determination unit 252, the corrected embossing time _{T n-1} of the sequence number n-1, the value obtained by subtracting the embossing time _{T n} of the sequence number n, greater than the threshold value Th1 Determine whether. If this determination is “Yes”, the process proceeds to Step 814. If this determination is “No”, the process proceeds to Step 812.

  In step 814, Error is returned to the mobile terminal 120 with the sequence number n. It is determined that there is a high possibility that the terminal in which this error is entered has the internal clock 203 set improperly.

  In step 812, OK is returned to the mobile terminal 120 with the sequence number n. In this case, it is determined that the setting of the internal clock 203 is normal.

  In FIG. 8, only the stamping time of sequence number n-1 is corrected, but the stamping time of sequence number n may be similarly corrected.

  As described above, it is possible to more accurately determine the marking order by correcting the stamping time of the sequence number immediately before the sequence number determined to be Error.

  FIG. 9 is a diagram illustrating a configuration example of hardware according to an embodiment. The hardware may include a processor 902, a memory 904, a display control unit 906, a display device 908, an input / output device 910, a communication control unit 912, a drive device 914, and a hard disk 918. Each device is connected by a bus 920. The drive device 914 can read and write the portable recording medium 916. The communication control unit 912 can be connected to a network (not shown). The hard disk 918 and / or the memory 904 may store management information such as a program source and a generation related to the source.

  A part or all of the program in one embodiment may be stored in the memory 904, the hard disk 918, and the like and operated by the processor 902.

  Note that all or part of the present embodiment can be implemented by a program. This program can be stored in the portable recording medium 916. The portable recording medium 916 refers to a non-transitory storage medium. Illustrative examples of the portable recording medium 916 include a magnetic recording medium, an optical disk, a magneto-optical recording medium, and a nonvolatile memory. Magnetic recording media include HDDs, flexible disks (FD), magnetic tapes (MT) and the like. Examples of the optical disk include a DVD (Digital Versatile Disc), a DVD-RAM, a CD-ROM (Compact Disc-Read Only Memory), and a CD-R (Recordable) / RW (ReWriteable). Magneto-optical recording media include MO (Magneto-Optical disk). All or a part of the embodiment of the present invention can be implemented by reading a program stored in a portable recording medium and executing it by a processor.

  The embodiments of the present invention have been described in detail with reference to the drawings. It should be noted that the above-described embodiments are for understanding the invention and are not intended to limit the scope of the present invention. Further, the plurality of embodiments described above are not mutually exclusive. Therefore, it should be noted that the elements of different embodiments are also intended to be combined unless a contradiction arises. Further, in the invention according to the method and the program described in the claims, the processing order may be changed or skipped as long as there is no contradiction. Alternatively, a plurality of processes may be executed simultaneously. It goes without saying that these embodiments are also included in the technical scope of the invention described in the claims.

  Further, by executing the program code read by the computer, not only the functions of the above-described embodiments are realized, but also an OS, a virtual machine monitor VMM, Needless to say, the present invention also includes a case in which a program such as firmware or BIOS performs part or all of the actual processing and the functions of the embodiments are realized by the processing.

  In addition, each component of the various embodiments of the present invention may be realized by a plurality of physically separated hardware. Moreover, each component of the various embodiments of the present invention may be realized by operating on one or more servers. Further, there may be a plurality of CPUs that execute the program according to the present invention, and each CPU may include a plurality of cores.

The following notes are disclosed regarding the above embodiment.
(Appendix 1)
Tag,
Multiple mobile devices,
A management device that communicates with the plurality of portable terminals,
Each of the plurality of portable terminals is
A time stamp identifying unit that identifies a time stamped by an internal clock of the mobile terminal when the mobile terminal is held over the tag for time stamping;
A reading unit for reading a sequence number from the tag;
A writing unit that updates the read sequence number and writes it to the tag;
A transmission unit that associates the sequence number, the time stamped, and the identification information of the mobile terminal, and transmits them to the management device;
Including
The management device
Based on the sequence number received from each of the plurality of portable terminals, the time stamped, and the identification information of the portable terminal, the reliability of each of the plurality of portable terminals may be reduced. Including a mobile device identification unit that identifies a mobile device with a clock,
Exit control system.
(Appendix 2)
The mobile terminal specifying unit subtracts the time stamp of another mobile terminal corresponding to the sequence number immediately before the predetermined sequence number from the time stamp of the predetermined mobile terminal corresponding to the predetermined sequence number. When the first difference is a negative value and the absolute value exceeds the first threshold, it is determined that the set value of the internal clock of the predetermined mobile terminal may be falsified, Including 1 determination unit,
The exit / exit management system according to appendix 1.
(Appendix 3)
The transmitter further transmits the current time of the internal clock to the management device;
The management device
A reception time specifying unit that specifies a reception time at which the current time is received by a clock managed by the management device;
When the absolute value of the second difference obtained by subtracting the reception time from the current time exceeds a second threshold, the mobile terminal specifying unit determines that the setting of the internal clock of the mobile terminal is not normal Including a second determination unit,
The exit / exit management system described in Appendix 2.
(Appendix 4)
The portable terminal identification unit responds to the other portable terminal from the time stamp of the other portable terminal when it is determined that the internal clock of the predetermined portable terminal may be falsified The exit / exit management system according to supplementary note 3, including a time correction unit that replaces a value obtained by subtracting the second difference with the time stamp of the other portable terminal and causes the process of the first determination unit to be executed again.
(Appendix 5)
Mobile device
When the portable terminal is held over the tag for stamping, a process of specifying the stamping time with the internal clock of the portable terminal;
A process of reading a sequence number from the tag;
Processing to update the read sequence number and write to the tag;
Performing the process of associating the sequence number, the time stamped, and the identification information of the mobile terminal to the management device,
The management device
Based on the sequence number received from each of the plurality of portable terminals, the time stamped, and the identification information of the portable terminal, the reliability of each of the plurality of portable terminals may be reduced. Execute the process of identifying the mobile device that has the watch,
Exit / exit management method.
(Appendix 6)
The process of specifying the mobile terminal is configured to calculate the time stamp of another mobile terminal corresponding to the sequence number immediately before the predetermined sequence number from the time stamp of the predetermined mobile terminal corresponding to the predetermined sequence number. If the subtracted first difference is a negative value and the absolute value exceeds the first threshold value, it is determined that the set value of the internal clock of the predetermined portable terminal may be falsified. Including processing,
The exit / exit management method according to Appendix 5.
(Appendix 7)
The process of transmitting includes a process of further transmitting the current time of the internal clock to the management device,
The management device
Further executing a process of specifying the reception time at which the current time is received by a clock managed by the management device;
When the absolute value of the second difference obtained by subtracting the reception time from the current time exceeds the second threshold, the process of specifying the mobile terminal is not normal in the setting of the internal clock of the mobile terminal. Including processing to determine,
The exit / exit management method according to appendix 6.
(Appendix 8)
The process of identifying the mobile terminal is performed when the internal clock of the predetermined mobile terminal is determined to have been tampered with from the time stamp of the other mobile terminal to the other mobile terminal. Supplementary note 7 includes a process of replacing the value obtained by subtracting the corresponding second difference with the time stamp of the other portable terminal, and re-executing the process of determining that there is a possibility of falsification. Exit and exit management method.
(Appendix 9)
In the management device,
A process of receiving a sequence number, a time stamp, and identification information of the mobile terminal in association with each other from each of the plurality of mobile terminals, wherein the sequence number is recorded by the mobile terminal for the time stamping. When the portable terminal is held over a tag, it is read from the tag, the time stamp is specified by an internal clock of the portable terminal, and the sequence number is updated by the portable terminal, The receiving process written to the tag;
Based on the sequence number received from each of the plurality of portable terminals, the time stamped, and the identification information of the portable terminal, the reliability of each of the plurality of portable terminals may be reduced. The process of identifying a mobile device with a watch,
An exit / exit management program.
(Appendix 10)
The process of specifying the mobile terminal is configured to calculate the time stamp of another mobile terminal corresponding to the sequence number immediately before the predetermined sequence number from the time stamp of the predetermined mobile terminal corresponding to the predetermined sequence number. If the subtracted first difference is a negative value and the absolute value exceeds the first threshold value, it is determined that the set value of the internal clock of the predetermined portable terminal may be falsified. Including processing,
The exit / exit management program described in Appendix 9.
(Appendix 11)
In the management device,
Receiving the current time of the internal clock;
A process of specifying a reception time at which the current time is received by a clock managed by the management device;
Is a program that further executes
When the absolute value of the second difference obtained by subtracting the reception time from the current time exceeds the second threshold, the process of specifying the mobile terminal is not normal in the setting of the internal clock of the mobile terminal. Including processing to determine,
The exit / exit management program according to appendix 10.
(Appendix 12)
The process of identifying the mobile terminal is performed when the internal clock of the predetermined mobile terminal is determined to have been tampered with from the time stamp of the other mobile terminal to the other mobile terminal. Supplementary note 11 includes a process of replacing the value obtained by subtracting the corresponding second difference with the time stamp of the other portable terminal and re-executing the process of determining that there is a possibility of falsification. Exit / exit management program.
(Appendix 13)
On your mobile device,
When the portable terminal is held over a tag for stamping, a process for specifying a stamping time by an internal clock of the portable terminal;
A process of reading a sequence number from the tag;
Processing to update the read sequence number and write to the tag;
The sequence number, the time stamped, and the identification information of the portable terminal are associated with each other and transmitted to the management apparatus, and the management apparatus receives the sequence number received from each of the plurality of portable terminals, The mobile terminal having an internal clock that may have reduced reliability, out of each of the plurality of mobile terminals, based on the time stamp and identification information of the mobile terminal, Processing to send,
An exit / exit management program.

110 Tag 111 Communication 120 Mobile terminal 130 Network 140 Management server 202 Time stamp specifying unit 203 Internal clock 204 Reading unit 206 Writing unit 208 Terminal identification information storage unit 210 Transmitting unit 220 Interface 250 Mobile terminal specifying unit 252 First determination unit 254 Second determination unit 256 Time correction unit 260 Reception unit 270 Reception time identification unit 280 Server management clock

Claims (7)

Tag,
Multiple mobile devices,
A management device that communicates with the plurality of portable terminals,
Each of the plurality of portable terminals is
A time stamp identifying unit that identifies a time stamped by an internal clock of the mobile terminal when the mobile terminal is held over the tag for time stamping;
A reading unit for reading a sequence number from the tag;
A writing unit that updates the read sequence number and writes it to the tag;
A transmission unit that associates the read sequence number, the time stamped, and the identification information of the mobile terminal with each other and transmits the information to the management device;
Including
The management device
Based on a plurality of sequence numbers received from each of the plurality of mobile terminals, a comparison result of time stamps corresponding to each of the plurality of sequence numbers , and identification information of the mobile terminals, each of the plurality of mobile terminals Including a mobile device identification unit that identifies mobile devices with internal clocks that may be less reliable,
Exit control system. The mobile terminal specifying unit subtracts the time stamp of another mobile terminal corresponding to the sequence number immediately before the predetermined sequence number from the time stamp of the predetermined mobile terminal corresponding to the predetermined sequence number. When the first difference is a negative value and the absolute value exceeds the first threshold, it is determined that the set value of the internal clock of the predetermined mobile terminal may be falsified, Including 1 determination unit,
The exit / exit management system according to claim 1. The transmitter further transmits the current time of the internal clock to the management device;
The management device
A reception time specifying unit that specifies a reception time at which the current time is received by a clock managed by the management device;
When the absolute value of the second difference obtained by subtracting the reception time from the current time exceeds a second threshold, the mobile terminal specifying unit determines that the setting of the internal clock of the mobile terminal is not normal Including a second determination unit,
The exit / exit management system according to claim 2.   The portable terminal identification unit responds to the other portable terminal from the time stamp of the other portable terminal when it is determined that the internal clock of the predetermined portable terminal may be falsified The exit / exit management system according to claim 3, further comprising a time correction unit that replaces a value obtained by subtracting the second difference with the time stamp of the other portable terminal and causes the first determination unit to execute the process again. . Mobile device
When the portable terminal is held over the tag for stamping, a process of specifying the stamping time with the internal clock of the portable terminal;
A process of reading a sequence number from the tag;
Processing to update the read sequence number and write to the tag;
Executing the process of associating the read sequence number, the stamping time, and the identification information of the mobile terminal with each other and transmitting them to the management device;
The management device
Based on a plurality of sequence numbers received from each of the plurality of mobile terminals, a comparison result of time stamps corresponding to each of the plurality of sequence numbers , and identification information of the mobile terminals, each of the plurality of mobile terminals Among these, we perform a process to identify mobile devices with internal clocks that may be unreliable,
Exit / exit management method. In the management device,
A process of receiving a sequence number, a time stamp, and identification information of a mobile terminal in association with each other from each of the plurality of mobile terminals, wherein the sequence number is used for time stamping by the mobile terminal. When the portable terminal is held over a tag, it is read from the tag, the time stamp is specified by an internal clock of the portable terminal, and the sequence number is updated by the portable terminal, The receiving process written to the tag;
Based on a plurality of sequence numbers received from each of the plurality of mobile terminals, a comparison result of time stamps corresponding to each of the plurality of sequence numbers , and identification information of the mobile terminals, each of the plurality of mobile terminals Of these, the process of identifying mobile devices with internal clocks that may be unreliable,
An exit / exit management program. On your mobile device,
When the portable terminal is held over a tag for stamping, a process for specifying a stamping time by an internal clock of the portable terminal;
A process of reading a sequence number from the tag;
Processing to update the read sequence number and write to the tag;
A process of transmitting the read sequence number, the stamping time, and the identification information of the mobile terminal to the management apparatus in association with each other, received by the management apparatus from each of the plurality of mobile terminals The reliability of each of the plurality of mobile terminals is reduced based on a plurality of sequence numbers, a comparison result of time stamps corresponding to each of the plurality of sequence numbers , and identification information of the mobile terminals. The process of transmitting to identify a mobile terminal having a possible internal clock;
An exit / exit management program.

Images