JP5527530B2 - Attendance management system, attendance management method, access point device for wireless LAN, server and portable terminal - Google Patents

Description

  The present invention is applicable to, for example, an attendance management system and attendance management method suitable for managing student attendance at a university lecture, and a wireless LAN used for the attendance management system and attendance management method. The present invention relates to an access point device, a server, and a mobile terminal.

  As a means of confirming and managing the attendance status (attendance status) of students and students in the classroom where the lecture is conducted, for example, the attendant can submit an attendance card, and the person in charge receives information on the attendance card. Input to a personal computer or the like is performed. However, in this attendance management method, when there are many students who are scheduled to attend, there is a problem that the input work amount and work time to the personal computer increase and the burden on the person in charge is heavy.

  Therefore, conventionally, for example, as in Patent Document 1 (Japanese Patent Laid-Open No. 2005-128885), by a person in charge using a server configured by a computer and a terminal device such as a mobile phone terminal possessed by a student or the like. There has been proposed a management system that can eliminate an input operation to a computer.

  In patent document 1, in particular, it is a problem to prevent impersonation of attendance by students and to prevent a midway exit from being judged as attendance. A connection (session) is established between a server and a mobile phone terminal, Attendance is confirmed by receiving several attendance confirmations from the mobile phone terminal.

Japanese Patent Laid-Open No. 2005-128885

  However, in the system of Patent Document 1, the instructor accesses the server during the lecture to set collation information, or the student accesses the server once or twice or several times with the terminal device. Attendance is confirmed by opening a web page.

  For this reason, both the instructor and the student must perform the prescribed work to confirm attendance, which is cumbersome, loses valuable class time, and the student cannot concentrate on the lecture. Arise.

  In view of the above, this invention provides an attendance management system that allows instructors and students to confirm attendance without performing any work during the lecture from the start to the end of the lecture. The purpose is to do.

In order to solve the above problems, the present invention provides:
An access point device for wireless LAN that is connected through the server-side communication path, acquiring at least, the server side, the identification information of the access point non linear terminal connected to device, from the access point device or the terminal An attendance management system for managing attendance of a user corresponding to the identification information of the terminal,
Before Symbol access point device,
Means for acquiring and changing the setting of the wireless LAN connection information from the server side through the communication path ;
A connection that executes the wireless connection in response to a connection request from the terminal when a terminal in which the same connection information as the wireless LAN connection information that has been changed in the setting enters the wireless LAN connection area Means,
Disconnecting means for disconnecting the wireless connection of the terminal when the terminal in the wireless connection state is out of a wireless LAN connection range;
With
The access point device or the terminal is
A notification that the access point device and the terminal are wirelessly connected and a notification that the wireless connection between the access point device and the terminal is disconnected are sent to the server side together with the identification information of the terminal. A means of sending,
The server side
Prior to the start of attendance management, means for sending the wireless LAN connection information to the access point device through the communication path;
Means for detecting the time when the user corresponding to the identification information of the terminal is present from the time of the wireless connection and the time of disconnection of the wireless connection in response to the notification;
Providing attendance management system, characterized in that it comprises a.

  In the present invention configured as described above, wireless LAN connection information is sent from the server side to the wireless LAN access point device. The access point device changes the wireless LAN connection information to the connection information received from the server side. Therefore, for the access point device, for example, specific wireless LAN connection information that is different for each classroom or lecture is set.

  For example, when a student possesses a terminal having a wireless LAN function and this access point device is installed and enters a classroom that is within a connection range with this access point device, the access point device and the terminal Whether or not a wireless connection can be established is performed.

  If the connection information that matches the wireless LAN connection information for attendance management set in the access point device is set in the terminal, wireless connection is performed between the terminal and the access point device. Is done. Prior to taking a lecture, the student can set the information for connecting to the terminal in advance.

  And in this invention, the identification information of the terminal with which the wireless connection was performed is sent to an attendance management server from an access point apparatus or a terminal. Therefore, the attendance management server can confirm the attendance of the student by managing the student corresponding to the identification information of the terminal wirelessly connected to the access point device.

  As described above, according to the present invention, a terminal in which connection information that matches wireless LAN connection information for managing attendance at a lecture is carried in a classroom where a student is simply lectured. Just enter the room and you can confirm attendance at the lecture. Therefore, the student and the lecturer do not need any operation for attendance confirmation, and can concentrate on the lecture.

  According to the present invention, since a terminal having a wireless LAN function possessed by a prospective attendee can confirm attendance depending on whether or not the terminal is connected to a wireless LAN access point device, In the confirmation, there is an effect that no operation is required.

It is a block diagram of the system configuration example of embodiment of the attendance management system by this invention. It is a figure for demonstrating the example of a sequence of the wireless connection in wireless LAN. It is a figure for demonstrating the example of a sequence of the wireless connection in wireless LAN. It is a block diagram which shows the structural example of the access point apparatus which comprises embodiment of the attendance management system by this invention. It is a block diagram which shows the structural example of the attendance management server which comprises embodiment of the attendance management system by this invention. FIG. 6 is a diagram used for explaining a partial configuration of the attendance management server in the example of FIG. 5. FIG. 6 is a diagram used for explaining a partial configuration of the attendance management server in the example of FIG. 5. It is a block diagram which shows the structural example of the mobile telephone terminal which comprises embodiment of the attendance management system by this invention. It is a figure which shows the example of a sequence for demonstrating the attendance management method in embodiment of the attendance management system by this invention. It is a figure which shows the flowchart for demonstrating the processing operation example of the attendance management server which comprises embodiment of the attendance management system by this invention. It is a figure which shows the flowchart for demonstrating the processing operation example of the attendance management server which comprises embodiment of the attendance management system by this invention. It is a figure used in order to demonstrate the attendance management method in embodiment of the attendance management system by this invention. It is a figure used in order to demonstrate the attendance management method in embodiment of the attendance management system by this invention. It is a figure which shows the flowchart for demonstrating the processing operation example of the access point apparatus which comprises embodiment of the attendance management system by this invention. It is a figure which shows the flowchart for demonstrating the processing operation example of the attendance management server which comprises embodiment of the attendance management system by this invention. It is a figure which shows the flowchart for demonstrating the processing operation example of the mobile telephone terminal which comprises 2nd Embodiment of the attendance management system by this invention.

  Several embodiments of an attendance management system according to the present invention will be described below with reference to the drawings.

  In the embodiment of the attendance management system according to the present invention, the attendee who is the subject of attendance management possesses a terminal having a wireless LAN function, and the attendee is expected to participate by starting the wireless connection between the terminal and the access point device for the wireless LAN. The start of attendance is determined. Therefore, in order to facilitate understanding of the embodiment of the present invention, before describing the details of the embodiment of the attendance management system according to the present invention, a terminal and an access point having a wireless LAN function used in the following embodiments An example of a processing sequence when starting a wireless connection with the apparatus will be described.

[Example of wireless LAN connection sequence]
In a wireless LAN system, an identifier for each group consisting of one access point device and a plurality of terminals that communicate with the access point device (referred to as a network identifier in this specification) is set in advance, and the network identifier is By using it for communication, it can be distinguished from other groups of wireless LANs. In the wireless LAN of the IEEE 802.11 standard, the network identifier is called ESSID (Extended Service Set Identifier).

  Further, in the wireless LAN system, in order to ensure security, in addition to the network identifier, communication data between the access point device and the terminal having the wireless LAN function is encrypted. An encryption key is also set in advance.

  In the wireless LAN of the IEEE 802.11 standard, a WEP (Wired Equivalent Privacy) system is used for encryption. This is a secret key encryption method (also called a shared key encryption method) that uses the same key (encryption key) for encryption and decryption. In the following description, an encryption key used for the WEP method is referred to as a WEP key.

  In order for a terminal having a wireless LAN function to be in a wireless LAN group including an access point device, it is necessary to register the terminal by requesting connection to the access point device, but ensuring security. In this case, at the time of the registration, mutual authentication of the ESSID and the WEP key set for both the access point device and the terminal having the wireless LAN function is necessary.

  For this reason, when registering a terminal having a wireless LAN function in the access point device, in order to ensure security, the ESSID and the WEP key are previously assigned to both the access point device and the terminal having the wireless LAN function. Must be set.

  A flow of registration processing (connection processing) of a terminal (hereinafter simply referred to as a terminal) having a wireless LAN function for setting an ESSID and a WEP key and for an access point device will be described with reference to the sequence diagrams of FIGS.

  After the setting of the ESSID and the WEP key is finished, when the terminal is turned on and registration with the access point device is started, the terminal requests the probe request Probe including the ESSID set in itself as shown in FIG. req. Is sent to the access point device.

  The access point apparatus sends the probe request Probe req. Is received, the ESSID included in the device is compared with the ESSID stored in the device itself, and when it is confirmed that the two are the same, the probe response Probe res. To the terminal.

  As shown in FIG. 3, the access point device transmits a beacon Beacon periodically (for example, at a cycle of 100 msec). This beacon can include an ESSID.

  The terminal sends a probe response Probe res. Is received, identification information (for example, MAC (Media Access Control) address, etc.) about the access point device such as ESSID included therein is held in the list. Then, the terminal identifies an access point device having an ESSID that matches the ESSID stored in the terminal from the list, and waits for a beacon from the identified access point device. And if the beacon from the specified access point apparatus is received, it will transfer to the next authentication process (Authentication).

  At the time of registration, the terminal transmits the probe response Probe res. If the ESSID is included in the beacon even if the beacon is not received, when the beacon is received, the information (MAC address etc.) about the access point device such as the ESSID included in the beacon is held in the list. . Then, the terminal identifies an access point having an ESSID that matches the ESSID stored in the terminal from the list, and waits for a beacon from the identified access point device. When a beacon is received from the identified access point device, the process proceeds to the next authentication process (Authentication) in the same manner as described above.

  In this case, the probe request Probe req. And the probe response Probe res. The process of receiving ESSID and authenticating the ESSID can be omitted.

  Even when the beacon beacon does not include an ESSID, and even when the terminal does not receive a beacon including an ESSID, the probe request Probe req. / Probe response Probe res. Thus, authentication of the ESSID of the access point device and the terminal is possible.

  Therefore, for mutual authentication of ESSID, beacon Beacon and probe request Probe req. / Probe response Probe res. Can use both or one.

  That is, the probe response Probe res. Or it can transfer to an authentication process (Authentication) by receiving beacon Beacon twice. That is, the probe response Probe res. 2 times for the terminal to move to the authentication process (Authentication). Alternatively, there are the following three ways to receive the beacon Beacon.

(A) A beacon Beacon that matches the ESSID of the terminal is received twice.
(B) Probe request Probe req. / Probe response Probe res. After receiving and transmitting, beacon Beacon that matches the terminal's ESSID is received.
(C) After receiving a beacon Beacon that matches the terminal's ESSID, the probe request Probe req. / Probe response Probe res. Send and receive.

  Next, in authentication processing (Authentication), the terminal first sends authentication information Authentication 1 to the access point device.

  Upon receiving this authentication information Authentication1, the access point device checks whether the terminal can be registered, and sends authentication information Authentication2 including temporary data created with a random value to the station device.

  The terminal that has received the authentication information Authentication 2 from the access point device sends authentication information Authentication 3 including data obtained by encrypting the temporary data with the WEP key set in the terminal itself to the access point device.

  When the access point device receives this authentication information Authentication 3, the access point device decrypts the encrypted temporary data included in the access point device with the WEP key held by the access point device itself, compares it with the original temporary data, Are the same. When it is confirmed that the temporary data is the same, the access point apparatus sends authentication information Authentication 4 to the terminal.

  By receiving this authentication information Authentication4, the terminal confirms that the WEP key has been authenticated by the access point device. Thus, the mutual authentication of the WEP key between the access point device and the terminal is completed.

  Next, the terminal transmits a connection request Association req. Including data with the authenticated ESSID added. To the access point device.

  The access point device sends this connection request Association req. Is received, the ESSID included in the device is compared with the ESSID stored in the device itself, and when it is confirmed that they are the same, the connection response Association res. To the terminal.

  The terminal sends the connection response Association res. Is received, the access point device confirms that the connection request has been accepted.

  Through the above processing, the terminal completes registration with the access point, and wireless communication is possible with the registered access point device.

[First Embodiment of Attendance Management System]
FIG. 1 is a diagram illustrating a system configuration example of an attendance management system according to the first embodiment. The example of FIG. 1 is an example of managing student attendance at lectures held in each of three classrooms 1, classroom 2, and classroom 3, for example.

  In each of classrooms 1, 2, and 3, an access point device for wireless LAN (hereinafter, the access point device is abbreviated as AP) is provided. The AP can adjust the transmission intensity of the radio wave, but the maximum wireless connection range is determined, and the number to be installed in the classroom is determined according to the size of the classroom.

  As shown in FIG. 1, in this example, each of the relatively small classroom 1 and classroom 2 is provided with one AP 11 and AP 21. A relatively large classroom 3 is provided with a plurality of APs 31 and 32 in this example.

  The AP 11 provided in the classroom 1 and the AP 21 provided in the classroom 2 are set to be wirelessly connectable within the classroom 1 and the classroom 2, and the outside of the classroom 1 and the outside of the classroom 2 are outside the wireless connection range. The transmission intensity of radio waves is adjusted. In addition, due to the presence of the walls of classrooms 1 and 2, it is relatively easy for AP11 and AP21 to adjust the outside of classroom 1 and outside of classroom 2 to be outside the wireless connection area.

  In addition, since the classroom 3 is large, one AP cannot cover the entire classroom, and thus two APs 31 and 32 are provided in this example. The radio wave transmission intensity of the APs 31 and 32 is adjusted so that the inside of the classroom 3 is within a wirelessly connectable range and the outside of the classroom 3 is out of the wireless connection range.

  Furthermore, when a plurality of APs are installed in one classroom, the radio connection channels of each of the plurality of APs are made different so that the frequency of the radio waves used can be made different to avoid radio wave interference. I have to. For example, AP 31 uses the first channel 1 for wireless connection, and AP 32 uses the eleventh channel for wireless connection.

  In this example, the APs 11, 21, 31, and 32 installed in the classrooms 1, 2, and 3 are connected to the attendance management server 5 through the wired LAN 4.

  In this example, the attendance management server 5 connects the wireless LAN connection information (including the above-described ESSID and WEP key) to the APs 11, 21, 31, and 32 installed in the classrooms 1, 2, and 3, respectively. Send registration information. In this example, the attendance management server 5 sends different connection information for each lecture to the APs 11, 21, 31, and 32 at the start of the lecture. Since the APs 31 and 32 are installed in the same classroom 3, the same connection information is sent to the APs 31 and 32.

  Each AP 11, 21, 31, 32 changes the connection information for its own wireless LAN according to the connection information newly received from the attendance management server 5.

  On the other hand, a student who is scheduled to attend a lecture possesses a terminal 6 having a wireless LAN function and enters a classroom 1, 2 or 3 to take a lecture. In this embodiment, the terminal 6 is a mobile phone terminal having a wireless LAN function.

  In this example, the student acquires wireless LAN connection information set in each of APs 11, 21, 31, and 32 from the attendance management server 5 through the Internet 7, for example, prior to attending the lecture, The acquired connection information is set in advance in the own mobile phone terminal 6.

  When the student actually attends the lecture, the student puts the wireless LAN function unit of his / her mobile phone terminal 6 into an operating state before or after entering the classroom where the lecture is held. When the wireless LAN function unit is brought into an operating state in the mobile phone terminal 6 and enters the wireless connection area of the AP, the wireless LAN function unit sends a connection request to the AP in the classroom. Then, the connection sequence for the wireless LAN connection described above is automatically executed between the AP in the classroom and the mobile phone terminal 6.

  The AP in the classroom, in the connection sequence based on the connection request from the mobile phone terminal 6, the connection information for the wireless LAN that is set and registered in itself and the connection for the wireless LAN sent from the mobile phone terminal 6 If the connection information matches, the connection sequence is determined to be successful and the wireless connection with the wireless LAN function unit of the mobile phone terminal 6 is completed.

  When the AP in the classroom completes the wireless connection with the student's mobile phone terminal 6, the identification information of the mobile phone terminal 6 included in the information from the mobile phone terminal 6, in this example, the mobile phone terminal 6 A wireless connection completion notification to which the MAC address is added is sent to the attendance management server 5.

  As will be described later, the attendance management server 5 manages each student and the identification information (MAC address in this example) of the student's mobile phone terminal 6 in association with each other. , The attendance (entrance) of the corresponding student is detected from the identification information of the terminal and registered in the attendance management table together with the time (entrance time) as will be described later.

  When the lecture ends and the student leaves the classroom, the wireless connection between the AP in the classroom and the mobile phone terminal 6 is disconnected. The wireless LAN function unit of the mobile phone terminal 6 monitors the strength of the radio wave from the AP, and when the strength of the radio wave becomes weak enough that the wireless connection cannot be maintained, the wireless LAN function unit sends a disconnection request to the AP. Try to disconnect.

  When the AP in the classroom recognizes the completion of disconnection of the wireless connection with the mobile phone terminal 6 that is wirelessly connected, the wireless connection is disconnected with identification information (MAC address in this example) of the disconnected mobile phone terminal 6 added. A notification is sent to the attendance management server 5. Upon receiving this wireless connection disconnection notification, the attendance management server 5 detects the corresponding student's leaving from the identification information of the terminal, and registers it in the attendance management table together with the time (leaving time) as will be described later. .

  In this embodiment, the attendance management server 5 calculates the total attendance time (listening time) from the entrance time and the exit time of the student for each lecture registered in the attendance management table. When the time is not less than a predetermined ratio of the lecture time, for example, 80% or more, it is determined that the student has attended the lecture. On the contrary, when the total attendance time is 80% or less, it is determined that the student has been absent from the lecture because he / she left the room during the lecture.

  As described above, according to this embodiment, the student enters the classroom where the wireless LAN function unit of his / her mobile phone terminal 6 is in an operating state and takes the lecture until the end of the lecture. By doing so, it is registered as attendance without any operation.

  Therefore, the student and the lecturer do not need to perform any operation to confirm attendance, and can concentrate on the lecture.

  The above is an overview of the attendance management system of this embodiment. The attendance management system of this embodiment will be described in more detail together with configuration examples of the AP, attendance management server 5 and mobile phone terminal 6 constituting this system. To do.

<AP hardware configuration example>
Since the APs 11, 21, 31 and 32 all have the same configuration, a hardware configuration example will be described with the AP 11 as a representative.

  FIG. 4 is a block diagram illustrating a hardware configuration example of the AP 11. The AP 11 in this example is configured by using, for example, a microcomputer. A CPU (Central Processing Unit) 101, a ROM (Read Only Memory) 102 for storing programs and the like, and a work area are used for the system bus 100. A working RAM (Random Access Memory) 103 is connected.

  In this example, a wired LAN interface 104, a packet processing unit 105, a connection information storage unit 106, an attendance management information generation unit 107, and an I / O port 108 are further connected to the system bus 100. .

  The CPU 101 controls the entire operation of the AP 11. The ROM 102 stores programs and MAC addresses for executing various control processes in the AP 11. The CPU 101 uses the RAM 103 as a work area memory, and executes various control processes as described later according to the program of the ROM 102.

  The wired LAN interface 104 is connected to the attendance management server 5 through the wired LAN 4. The wired LAN interface 104 transfers the received IP packet received through the wired LAN 4 to the packet processing unit 105, and transmits the transmission packet from the packet processing unit 105 to the wired LAN 4. Through the attendance management server 5.

  The packet processing unit 105 has a function of decomposing a received IP packet and converting and generating information to be transmitted into a transmission packet. The packet processing unit 105 also has a function of analyzing the packet header and the packet data, and can decode various information when registering the terminal 6 in the AP.

  When the received packet is information for connection (registration) to the own AP 11 based on the analysis result of the received packet, the CPU 101 performs processing in the CPU 101 and the AP 11 does not use the information for connection (registration). When it is determined that the packet is not to be processed, the received packet is sent to the attendance management server 5 through the wired LAN interface 104 and the wired LAN 4.

  The connection information storage unit 106 stores wireless LAN connection information for wireless connection with a terminal having a wireless LAN function, in this example, an ESSID and a WEP key.

  When the information obtained by disassembly by the packet processing unit 105 under the control of the CPU 101 is connection information for wireless LAN transmitted from the attendance management server 5, the connection information is stored in the connection information storage unit. 106 and stored in the connection information storage unit 106.

  In this example, when new connection information is sent from the attendance management server 5, the AP 11 uses the wireless LAN connection information held in the connection information storage unit 106 as the new wireless LAN information. Update to the connection information.

  The attendance management information generation unit 107 includes identification information (MAC address in this example) of the wirelessly connected terminal when the own AP 11 completes wireless connection with the terminal having the wireless LAN function under the control of the CPU 101. The wireless connection completion notification is generated and passed to the packet processing unit 105.

  Under the control of the CPU 101, the packet processing unit 105 generates a transmission packet with the wireless connection completion notification as the destination attendance management server. This transmission packet is sent to the attendance management server 5 through the wired LAN interface 104 under the control of the CPU 101. This transmission packet includes a MAC address that is an example of identification information of the AP 11 itself.

  Also, when the attendance management information generating unit 107 disconnects the wireless connection with the terminal that was wirelessly connected under the control of the CPU 101, the identification information (MAC address in this example) of the terminal that disconnected the wireless connection is displayed. A function of generating a notification of disconnection of the included wireless connection and passing it to the packet processing unit 105 is provided.

  Under the control of the CPU 101, the packet processing unit 105 generates a transmission packet with the address of the attendance management server as a notification of disconnection of the wireless connection. This transmission packet is sent to the attendance management server 5 through the wired LAN interface 104. Needless to say, the transmission packet includes a MAC address which is an example of identification information of the AP 11 itself.

  A wireless LAN transmission / reception circuit 110 is connected to the I / O port 108. The wireless LAN transmission / reception circuit 110 includes a transmission processing circuit 111, a reception processing circuit 112, a transmission amplifier 113, a reception amplifier 114, an antenna distribution circuit 115, a transmission antenna 116, and a reception antenna 117. Is done.

  The transmission antenna 116 and the reception antenna 117 are used to transmit and receive packets through the wireless LAN. In the AP 11, a transmission packet from the attendance management server 5 or the like obtained through the wired LAN interface 104 is transmitted from the I / O port 108 to the transmission processing circuit 111 and the amplifier 113, and the antenna distribution circuit 115 according to the control of the CPU 101. To the transmitting antenna 116 and wirelessly transmit to a wirelessly connected terminal.

  Further, a packet from a terminal received through the reception antenna 117 is supplied to the reception processing circuit 112 through the antenna distribution circuit 115 and the amplifier 114. The packet from the reception processing circuit 112 is sent to the system bus 100 through the I / O port 108.

  In this example, the mobile phone terminal 6 and the AP 11 are wirelessly connected during the lecture, and the attendance management server 5 and the mobile phone terminal 6 in the classroom 1 are connected via the wireless LAN via the AP 11. , Exchange of information is possible. Accordingly, auxiliary information for lectures is provided from the attendance management server 5 to the mobile phone terminal 6 in the classroom 1 via the AP 11, and information is provided from the mobile phone terminal 6 in the classroom 1 to the attendance management server 5 via the AP 11. Can be uploaded.

  Note that the packet processing unit 105 and the attendance management information generation unit 107 are not configured in hardware, but are configured as software function units in which the CPU 101 uses the RAM 103 as a work area and executes processing according to the program in the ROM 102. You can also

<Hardware configuration example of attendance management server 5>
FIG. 5 is a block diagram illustrating a hardware configuration example of the attendance management server 5 according to the first embodiment. The attendance management server 5 in this example is configured using, for example, a personal computer, and a CPU 501, a ROM 502 for storing programs and the like, and a RAM 503 serving as a work area are connected to a system bus 500.

  In this example, the system bus 500 further includes a wired LAN interface 504, a communication interface 505, a packet processing unit 506, an attendance management table memory 507, a lecture-by-lecture connection information storage unit 508, a clock unit 509, and a display interface 510. The operation unit interface 511 is connected.

  The CPU 501 controls the overall operation of the attendance management server 5. The ROM 502 stores programs and MAC addresses for executing various control processes in the attendance management server 5. The CPU 501 uses the RAM 503 as a work area memory and executes various control processes according to the program in the ROM 502.

  The wired LAN interface 504 is connected to the wired LAN 4 and transmits and receives IP packets to and from the APs 11, 21, 31, and 32. The communication interface 505 is connected to the Internet 7, and transmits and receives communication data between the terminal such as the mobile phone terminal 6 and the attendance management server 5 through the Internet 7.

  The packet processing unit 506 has a function of decomposing a packet received through the wired LAN interface 504 and a packet received through the communication interface 505, and generating a packet to be transmitted through the wired LAN interface 504 and a packet to be transmitted through the communication interface 505. . The packet processing unit 506 also has a function of analyzing the packet header and packet data, and also has a function of notifying the CPU 501 of the analysis result.

  The attendance management table memory 507 is a memory that stores an attendance management table that stores student attendance information for each lecture. An example of an attendance management table per lecture is shown in FIG.

  That is, in this example, the attendance management table is created for each lecture, and in the example of FIG. 6, the wireless LAN connection information (ESSID and WEP key) is set for the lecture name and the classroom where the lecture is held. In this example, the AP identification information stored is associated with the MAC address.

  In this example, the attendance management table includes, for each student, the name, the identification information of the mobile phone terminal possessed by the student (in this example, the MAC address; described as the terminal ID in FIG. 6), the lecture Each of the entry time to the classroom to be performed, the exit time, the total time from the entrance time to the exit time, the lecture time, and the attendance determination result are provided as storage items.

  In this example, the student name (student name) and the identification information (hereinafter referred to as the terminal ID) of the mobile phone terminal possessed by the student are registered in advance by the student before the lecture starts. And stored in the attendance management table.

  When the attendance management server 5 receives a wireless LAN connection completion notification from the AP, the entrance time is determined and written from the terminal ID included in the notification and the time when the notification is received. When the attendance management server 5 receives a wireless LAN connection disconnection notification from the AP, the leaving time is determined and written from the terminal ID included in the notification and the time when the notification is received.

  The total time is calculated and written by the CPU 501 of the attendance management server 5 based on the written entry and exit times. The attendance management server 5 CPU 501 determines whether to write or not based on whether the calculated total time is equal to or greater than a predetermined ratio of the lecture time, or in this example, equal to or greater than 80%. To.

  The connection information storage unit 508 for each lecture stores, for example, a lecture schedule for one day for each day of the week and connection information for wireless LAN for each lecture. FIG. 7 is a diagram showing an example of the contents stored for one day for each day of the week in the connection information storage unit 508 for each lecture.

  That is, in this example, as shown in FIG. 7, in the connection information storage unit 508 for each lecture, for each day of the week, the connection information including the lecture name, ESSID and WEP key, the lecture time, and the lecture And a MAC address as identification information of an AP installed in the classroom are stored.

  The clock unit 509 is for acquiring the current time. In this example, when the CPU 501 receives a wireless connection completion notification from the AP or receives a wireless connection disconnection notification from the AP, the CPU 501 acquires the time measured by the clock unit 509 and receives these notifications. Is determined as the notification time.

  The display interface 510 is connected to a display 512 made of, for example, an LCD (Liquid Crystal Display). The display interface 510 displays image display information according to the control of the CPU 501 on the display screen of the display 512.

  An operation unit 513 such as a keyboard is connected to the operation unit interface 511. The operation unit interface 511 sends operation input information from the operation unit 513 to the CPU 501 through the system bus 500. The CPU 501 recognizes the operation input information, determines what type of operation input has been made, and performs control processing according to the determination result. In this example, the operation unit 513 is used for inputting an ESSID or WEP key as connection information for a wireless LAN, or inputting a lecture name, a lecture time, or the like.

  The packet processing unit 506 can be configured not as a hardware configuration but as a software function unit in which the CPU 501 executes processing according to the program in the ROM 502 using the RAM 503 as a work area.

<Example of hardware configuration of mobile phone terminal 6>
FIG. 8 is a block diagram showing a hardware configuration example of the mobile phone terminal 6 as an example of the mobile terminal used in the first embodiment. The cellular phone terminal 6 in this example is configured by using, for example, a microcomputer, and a CPU 601, a ROM 602 for storing programs and the like, and a RAM 603 serving as a work area are connected to a system bus 600.

  In this example, the system bus 600 is further connected with a telephone communication interface 604, a packet processing unit 605, a voice interface 606, a display interface 607, an operation unit interface 608, a memory 609, and an I / O port 610. Yes.

  The CPU 601 controls the overall operation of the mobile phone terminal 6. The ROM 602 stores programs and MAC addresses for executing various control processes in the cellular phone terminal 6. The CPU 601 uses the RAM 603 as a work area memory and executes various control processes according to the program in the ROM 602.

  A telephone network communication circuit 611 is connected to the telephone communication interface 604. The telephone network communication circuit 611 performs transmission / reception processing of call voice information and call control information transmitted / received through the mobile phone network. Furthermore, in this example, the mobile phone terminal 6 has a Web function, and the telephone network communication circuit 611 also transmits and receives Web information through the Internet network connected to the mobile phone network.

  The telephone network communication circuit 611 exchanges information packets to be transmitted / received to / from the system bus 600 through the telephone communication interface 604.

  The packet processing unit 605 disassembles a packet received through the telephone communication interface 604 and a packet received through a wireless LAN I / O port 610 (to be described later), and transmits a packet and an I / O port transmitted through the telephone communication interface 604. A function of generating a packet to be transmitted through the network 610 is provided. The packet processing unit 605 also has a function of analyzing the packet header and packet data, and also has a function of notifying the CPU 601 of the analysis result.

  The voice interface 606 converts the received voice signal of the mobile phone into an analog signal and supplies it to the speaker 613 through the amplifier 612 so that the received voice is emitted. The audio interface 606 has a function of receiving the transmission audio signal collected by the microphone 615 through the amplifier 614, converting it into a digital audio signal, and transferring the digital audio signal to the packet processing unit 605.

  The display interface 607 is connected to a display 616 made of, for example, an LCD. The display interface 607 displays image display information according to the control of the CPU 601 on the display screen of the display 616.

  An operation unit 617 such as a numeric keypad is connected to the operation unit interface 608. The operation unit interface 608 sends operation input information from the operation unit 617 to the CPU 601 through the system bus 600. The CPU 601 recognizes the operation input information, determines what type of operation input has been made, and performs control processing according to the determination result.

  The memory 609 stores mobile phone phone book data and Web access URL data. In this embodiment, the memory 609 includes a wireless LAN connection information storage unit 609M. The wireless LAN connection information storage unit 609M stores wireless LAN connection information of the AP of the classroom where the student who has the mobile phone terminal 6 is going to take a lecture.

  A wireless LAN transmission / reception circuit 620 is connected to the I / O port 610. The wireless LAN transmission / reception circuit 620 includes a transmission processing circuit 621, a reception processing circuit 622, a transmission amplifier 623, a reception amplifier 624, an antenna distribution circuit 625, a transmission antenna 626, and a reception antenna 627. Is done.

  The transmission antenna 626 and the reception antenna 627 are for transmitting and receiving packets through the wireless LAN. Under the control of the CPU 601, the transmission packet from the I / O port 610 is supplied to the transmission antenna 626 via the transmission processing circuit 621, the amplifier 623, and the antenna distribution circuit 625, and wirelessly connected to the AP. Is transmitted wirelessly.

  A packet from the AP received through the reception antenna 627 is supplied to the reception processing circuit 622 through the antenna distribution circuit 625 and the amplifier 624. A packet from the reception processing circuit 622 is sent to the system bus 600 through the I / O port 610.

  The packet processing unit 605 may not be configured as a hardware configuration, but may be configured as a software function unit in which the CPU 601 executes processing according to a program in the ROM 602 using the RAM 603 as a work area.

<Sequence of operation flow in the attendance management system>
The overall flow of processing operations in the attendance management system of this embodiment configured as described above is shown in the sequence example of FIG.

  First, a person in charge of the university inputs a lecture schedule and sets and inputs connection information for wireless LAN of each lecture to the attendance management server 5. In response to this input, the attendance management server 5 stores the lecture schedule for one day for each day of the week and the connection information for the wireless LAN for each lecture in the lecture-by-lecture connection information storage unit 508.

  The student accesses the attendance management server 5 by accessing, for example, the university homepage through the Internet using the web function of his mobile phone terminal 6, and in this example, by registering the lecture he receives, Wireless LAN connection information (hereinafter referred to as connection information for each lecture) set in the AP of the classroom where the registered lecture is held is acquired.

  A flowchart of a processing operation example in the attendance management server 5 at this time is shown in FIG. The processing of each step in the flowchart of FIG. 10 is executed by the CPU 501 of the attendance management server 5 according to the program in the ROM 502.

  That is, the CPU 501 determines whether or not access has been received from any of the terminals (step S101), and executes other processing when determining that the access has not been received (step S102).

  If it is determined in step S101 that access has been received from any of the terminals, the CPU 501 performs authentication using a predetermined password, user ID, or the like to determine whether the access is from the student's mobile phone terminal 6 or not. (Step S103). If not, this processing routine is terminated. If it is determined in step S103 that the authentication is OK, the CPU 501 generates a communication path with the mobile phone terminal 6 (step S104).

  When the communication path is generated, the student sends his / her name from the mobile phone terminal 6 to the attendance management server 5, designates a lecture he / she plans to attend, and sends a registration request. This registration request includes the MAC address of the mobile phone terminal 6.

  The CPU 501 of the attendance management server 5 accepts the registration request, and the name of the student who accepted the registration of the lecture and the MAC address as identification information of the mobile phone terminal 6 are registered and designated in the attendance management table memory 507. Is recorded in the attendance management table of the lecture (step S105, see FIG. 6).

  Then, the CPU 501 of the attendance management server 5 uses wireless LAN connection information (hereinafter referred to as connection information for each lecture) set in the AP of the classroom where the registered lecture is performed, as a connection information storage unit for each lecture. The data is read from 508 and sent to the cellular phone terminal 6 of the student who registered the lecture (step S106).

  The mobile phone terminal 6 stores and holds the connection information for each lecture received from the attendance management server 5 in the wireless LAN connection information storage unit 609M of the memory 609. When the student has registered all of the lectures he / she intends to attend, he / she inputs the instruction to end the registration. However, if the registration of all the lectures has not yet been completed, the student again designates the lecture and registers it. To do. When the student inputs a lecture registration end instruction, a lecture registration end notification is sent from the mobile phone terminal 6 to the attendance management server 5.

  Therefore, the CPU 501 of the attendance management server 5 determines whether or not a lecture registration end notification has been received from the mobile phone terminal 6 (step S107). If not yet received, the process returns to step S105 to register the lecture. Accept the request. If it is determined in step S107 that a lecture registration end notification has been received from the mobile phone terminal 6, the CPU 501 disconnects the communication path with the mobile phone terminal 6 through the Internet (step S108). Exit the routine.

  In the above description, the attendance management server 5 automatically sends connection information for each lecture to the mobile phone terminal 6 every time a registration request for a lecture is received from the mobile phone terminal 6. When the attendance management server 5 notifies the attendance management server 5 that the registration of all the lectures that he / she intends to attend is completed, the attendance management server 5 provides the connection information for each lecture for all lectures registered for the student to the mobile phone terminal 6. You may make it send to.

  Next, in the sequence example of FIG. 9, at the time of the lecture, the attendance management server 5 sends the connection information for each lecture for the wireless LAN to the AP of the classroom where the lecture is held, and causes the AP to set it. To. A flowchart of a processing operation example of the attendance management server 5 at this time is shown in FIG. 11 is also executed by the CPU 501 of the attendance management server 5 according to the program in the ROM 502.

  That is, the CPU 501 refers to the lecture time stored in the per-lecture connection information storage unit 508 and also refers to the time measured from the clock unit 509 to monitor the start time of the lecture (step S111). Then, the CPU 501 determines whether or not the lecture start time has come (step S112). If the lecture start time has not been reached, the process returns to step S111 to monitor the lecture start time.

  When it is determined in step S112 that the lecture start time has come, the CPU 501 transmits connection information for each lecture to the APs of all classrooms in which the lecture at the start time is held (step S113). And it returns to step S111 and repeats the process after this step S111.

  With the above processing, when a lecture is started, the wireless LAN connection information set for each lecture is set in the AP of the classroom where the lecture starts.

  On the other hand, when a student actually attends a lecture, the student turns on the wireless LAN function of his mobile phone terminal 6 before or after entering the classroom where the lecture is held. When the wireless LAN function is activated in the cellular phone terminal 6, the cellular phone terminal 6 issues a wireless LAN connection request to a nearby AP by the wireless LAN function of the cellular phone terminal 6. However, when the mobile phone terminal 6 is outside the classroom and out of the service area where the radio waves of the AP in the classroom cannot reach, a sequence for wireless LAN connection as shown in FIG. 2 between the mobile phone terminal 6 and the AP. Will never start.

  Then, when the student enters the classroom carrying the mobile phone terminal 6 and enters the radio wave range where the radio wave from the AP can be received at a predetermined intensity or higher, the mobile phone terminal 6 and the AP are shown in FIG. Such a sequence for wireless LAN connection is automatically executed.

  In this wireless LAN connection sequence, as described above, if the connection information for each lecture matches between the mobile phone terminal 6 and the AP, the connection sequence is successful. 6 returns a connection response to establish a wireless connection with the mobile phone terminal 6.

  The student's mobile phone terminal 6 executes a sequence for wireless LAN connection with the AP for all the connection information for each lecture stored in the wireless LAN connection information storage unit 609M of the own terminal.

  For example, as shown in FIG. 12, in the case of a lecture held in the classroom 1, for example, the mobile phone terminal 6A carried by the student and brought into the classroom 1 is set and registered in the AP 11 of the classroom 1. If the connection information for each lecture that matches the connection information for wireless LAN (described as “setuzoku1” in the example in the figure) is obtained from the WEB and set and registered, the mobile phone terminal 6A and the AP 11 of the classroom 1 are registered. Between the two, the connection sequence is successful, and the wireless connection between the two is established.

  However, the connection information for each lecture that matches the wireless LAN connection information set and registered in the AP 11 of the classroom 1 is not registered in the mobile phone terminal 6B carried by the student and brought into the classroom. The connection sequence ends unsuccessfully, and the wireless connection between the AP 11 and the mobile phone terminal 6B is not performed.

  When the AP 11 determines that the wireless connection with the mobile phone terminal 6A has been completed, the AP 11 sends a wireless connection completion notification including the MAC address that is the terminal ID of the mobile phone terminal 6A connected wirelessly. 5 through the wired LAN 4. Upon receiving this wireless connection completion notification, the attendance management server 5 determines that the student who possesses the mobile phone terminal 6A having the MAC address included in the received wireless connection completion notification has started attending the lecture held in the classroom 1. Like that. In this example, the attendance management server 5 determines that the time when the wireless connection completion notification is received is the attendance start time.

  Thus, when the mobile phone terminal 6A and the AP 11 are wirelessly connected, the student's mobile phone terminal 6A and the attendance management server 5 can communicate with each other via the wireless LAN. Thus, the lecture materials can be downloaded to the student's mobile phone terminal 6A.

  Then, after the student mobile phone terminal 6A establishes the wireless connection with the AP 11, the student's mobile phone terminal 6A monitors the strength of the radio wave from the AP 11, and determines that the strength of the radio wave has become so weak that the wireless connection cannot be maintained. As shown in the sequence example of FIG. 9, a disconnection request is sent to the AP. Upon receiving this disconnection request, the AP 11 returns a disconnection response to the mobile phone terminal 6A. As a result, the wireless connection between the mobile phone terminal 6A and the AP 11 is disconnected. That is, as shown in FIG. 13, when the student carries the mobile phone terminal 6A and leaves the classroom 1, the wireless connection between the mobile phone terminal 6A and the AP 11 is disconnected.

  Even if the AP does not receive a wireless connection disconnection request from the terminal, the wireless connection with the terminal is disconnected if there is no communication access for a predetermined time or longer from the wirelessly connected terminal. Judge that it was done.

  Then, the AP 11 sends a wireless connection disconnection notification including the MAC address that is the terminal ID of the mobile phone terminal 6 </ b> A that has disconnected the wireless connection to the attendance management server 5 through the wired LAN 4. Upon receiving this wireless connection disconnection notification, the attendance management server 5 determines that the student possessing the mobile phone terminal 6 with the MAC address included in the received wireless connection disconnection notification has left the classroom where the lecture was held. To do. In this example, the attendance management server 5 determines that the time when the wireless connection disconnection notification is received is the exit time.

  12 and 13, the circle centered on AP11 is an image of the emission of radio waves from AP11, and the outermost circle is within the radio wave range of AP11. In FIGS. 12 and 13, the outside of classroom 1 is shown as within the radio wave range of AP 11, but in reality, the radio wave range of AP 11 is within classroom 1 due to the wall of classroom 1. Has been.

  The above has been described as the case of the exchange between the AP 11 in the classroom 1, the mobile phone terminal and the attendance management server 5, but the AP 21 and APs 31, 32 in the other classroom 2 and the classroom 3, the mobile phone terminal and The same applies to the exchange with the attendance management server 5. However, in the case of the classroom 3, the same connection information for each lecture is set in the two APs 31 and 32, and the attendance management server 5 notifies the wireless connection completion notification and the wireless communication from the two APs 31 and 32. The attendance start and exit are determined by the disconnection notification.

  Refer to the flowcharts for the processing operation example of the AP and the processing operation example of the attendance management server 5 from when the mobile phone terminal 6 enters the wireless connection area with the AP until it leaves the wireless connection area as described above. While explaining.

  FIG. 14 is a flowchart of an example of processing operation of the AP in that case. The processing of each step in the flowchart of FIG. 14 is executed by the AP CPU 101 in accordance with the program in the ROM 102.

  That is, the CPU 101 of the AP determines whether or not a wireless connection request from the terminal has been received (step S211), and when determining that the wireless connection request has been received, executes the sequence shown in FIG. 2 for wireless connection. (Step S212).

  Then, the CPU 101 determines whether the wireless LAN connection information matches between the AP and the mobile phone terminal, the wireless connection sequence is successful, and the wireless connection is completed (step S213). If it is determined in step S213 that the wireless connection sequence has failed and wireless connection has not been established, the CPU 101 returns to step S211 and repeats the processing from step S211.

  If it is determined in step S213 that the wireless connection sequence has been successful and the wireless connection has been completed, the CPU 101 causes the attendance management server 5 to perform wireless connection including the MAC address as the terminal ID of the wirelessly connected terminal. A completion notification is sent (step S214). This wireless connection completion notification includes the MAC address of the AP.

  After step S214, the CPU 101 returns to step S211 and repeats the processing from step S211.

  If it is determined in step S211 that a wireless connection request from the terminal has not been received, the CPU 101 determines whether a wireless connection disconnection request has been received (step S215), and the disconnection request has been received. If it is determined that there is no, the process returns to step S211, and the processes after step S211 are repeated.

  When it is determined in step S215 that the wireless connection disconnection request has been received, the CPU 101 disconnects the wireless connection with the terminal that has requested disconnection (step S216), and then sends the wireless connection to the attendance management server 5. A disconnection notification of wireless connection including the MAC address as the terminal ID of the terminal that has disconnected is sent (step S217). This wireless connection disconnection notification also includes the MAC address of the AP.

  After step S217, the CPU 101 returns to step S211 and repeats the processing from step S211.

  Next, FIG. 15 is a flowchart of a processing operation example of the attendance management server 5 that receives the above-described wireless connection completion notification and wireless connection disconnection notification from the AP. Processing of each step in the flowchart of FIG. 15 is executed by the CPU 501 of the attendance management server 5 according to the program in the ROM 502.

  The CPU 501 determines whether or not a wireless connection completion notification including a terminal ID has been received from the AP (step S301). When it is determined in step S301 that the wireless connection completion notification has been received, the CPU 501 acquires the reception time from the clock unit 509, and the identification information of the AP that has received the reception time and the wireless connection completion notification. Based on the MAC address, the information storage unit 508 for each lecture is referenced to detect which lecture is a wireless connection completion notification (step S302).

  The CPU 501 identifies the student (student) by confirming that the MAC address of the terminal included in the received wireless connection completion notification is registered in the attendance management table for lecture detected in step S302, In the attendance management table for the lecture, the reception time of the wireless connection completion notification is recorded in the entry time column for the identified student (student) on the day (step S303).

  Next, the CPU 501 determines whether or not a wireless connection disconnection notification including the terminal ID is received from the AP (step S304). If it is determined in step S304 that a wireless connection disconnection notification has not been received, the CPU 501 returns to step S301 and repeats the processing from step S301 onward.

  If it is determined in step S304 that the wireless connection disconnection notification has been received, the CPU 501 acquires the reception time from the clock unit 509, and identifies the reception time and the AP that has transmitted the wireless connection disconnection notification. Based on the MAC address which is information, the information storage unit 508 for each lecture is referred to detect which lecture is a wireless connection disconnection notification (step S305).

  The CPU 501 identifies the student (student) by confirming that the MAC address of the terminal included in the received wireless connection disconnection notification is registered in the attendance management table for lecture detected in step S305. In the attendance management table for the lecture, the reception time of the wireless connection disconnection notification is recorded in the column of the leaving time for the identified student (student) on the day (step S306).

  When the reception time of the wireless connection disconnection notification is later than the lecture end time, the reception time of the wireless connection disconnection notification may be set to be the same as the lecture end time. For example, whether or not the reception time of the wireless connection disconnection notification is later than the lecture end time by referring to the lecture end time in the connection information storage unit 508 for each lecture when the wireless connection disconnection notification is received. When the judgment is late, the lecture end time is recorded in the column for the leaving time.

  Next, the CPU 501 calculates the total time from the entry time to the exit time of the student (student) who has sent the wireless connection disconnection notification, and 80 times of the lecture time recorded in the attendance management table for that lecture. If it is 80% or more, it is recorded as attendance, and if it is less than 80%, it is recorded as absence in the attendance management table (step S307). Note that the attendance determination in step S307 may be performed for all students on the day of the attendance management table for the lecture after the corresponding lecture ends.

  After step S307, the CPU 501 returns to step S301, and repeats the processing after step S301.

  As described above, in the attendance management server 5, the attendance history including the entry time of the student into the classroom and the exit time from the classroom is written in the attendance management table for each lecture. An attendance management table will be created. In other words, even if the student or the instructor does not perform any operation to confirm attendance, the attendance history is automatically entered by simply entering and exiting the classroom where the student is taking the lecture. Recorded as a management table.

  In the above-described embodiment, the duration of the wireless connection state is equal to the attendance time of the lecture, and when the classroom is left in the middle of the lecture, the exit time in the middle is recorded. Students who have left can be absent without attending.

  In this embodiment, when the attendance management server 5 starts a lecture, wireless LAN connection information (connection information for each lecture) is sent to the AP installed in the classroom where the lecture is held. To be set to AP. For this reason, wireless connection between the AP and the student's mobile phone terminal is possible only during the time when the lecture is being performed, and student attendance at each lecture can be managed reliably.

  Therefore, according to this embodiment, the simple process of sending the connection information for each lecture from the attendance management server 5 to the AP of the classroom where each lecture is performed from the connection information storage unit 508 for each lecture according to the lecture schedule. Therefore, it is possible to manage attendance for all lectures.

  In the above-described embodiment, the attendance management server 5 sends the wireless LAN connection information to the AP for each lecture, but another server that distributes the wireless LAN connection information is wired. It may be further provided in the LAN 4 and sent from this separate server to each AP. Even in that case, the attendance management server 5 keeps track of the correspondence between the AP in which the connection information is set and the lecture.

  In addition, in the above-described embodiment, the time at which the wireless LAN connection information is sent from the server to the AP for each lecture is the lecture start time, but may be slightly before or slightly after the lecture start time. Good.

  In the above example, the attendance start time and the exit time from the classroom are the times when the attendance management server 5 receives the wireless connection completion notification and the wireless connection disconnection notification, but the APs 11, 21, 31, and 32 are clock units. The wireless connection completion notification and the wireless connection disconnection notification sent to the attendance management server 5 may include the time when the wireless connection is completed and the time when the wireless connection is disconnected.

  In the above-described embodiment, it is assumed that there are a plurality of classrooms and that each classroom conducts different lectures at different times of the day. In order for the CPU 501 of the attendance management server 5 to specify the lecture that has received the disconnection notification, the reception time of the wireless connection completion notification and the wireless connection disconnection notification, and the identification information of the AP installed in the classroom (in the above example) (MAC address) was confirmed.

  However, when there is only one classroom, the lecture can be specified only from the reception time of the wireless connection completion notification and the wireless connection disconnection notification. In addition, when there is one classroom and only one lecture is given per day, the lecture can be specified only from the date.

  In the above-described embodiment, the attendance management server 5 sends the wireless LAN connection information such as ESSID and WEP key different for each lecture to the AP. However, the ESSID and WEP key different for each classroom are assigned to the AP. You may make it send to. In that case, different lectures held in one classroom are distinguished by the time when the lectures are held, and sent together with the identification information of the terminal wirelessly connected to the AP or disconnected from the AP. It is possible to recognize which lecture you attended by referring to the time information.

  In the above-described embodiment, storage of wireless LAN connection information to the terminal is automatically acquired by accessing the attendance management server through the Internet. Provide a list of wireless LAN connection information for each lecture, and manually store the wireless LAN connection information for lectures required by the mobile phone terminal. Of course.

  Further, in the above-described embodiment, the AP sends a wireless connection completion notification to the attendance management server 5 every time a wireless connection request is made from the terminal and the wireless connection with the terminal is completed. The wireless connection disconnection notification is sent to the attendance management server 5 each time the wireless connection with the terminal is disconnected.

  However, each time the wireless connection with the terminal is completed or the wireless connection with the terminal is disconnected, the AP does not send the notification to the attendance management server 5 but the time and the terminal ID when the wireless connection is completed. In addition, the time when the wireless connection is disconnected and the terminal ID are stored, and in response to the notification request at the time when the lecture from the attendance management server 5 ends, all the stored notification information is managed as attendance management. It may be sent to the server 5. Further, when not the notification request from the attendance management server 5 but the connection information for the next lecture from the attendance management server 5 is sent, all the stored notification information is sent to the attendance management server 5. Anyway.

  In the above description, the attendance management table for each lecture stored and held by the attendance management server 5 records the connection information for wireless LAN and the MAC address of the AP in association with the lecture name. Since the correspondence is stored in the connection information storage unit 508 for each lecture, the attendance management table for each lecture associates the lecture name with the connection information for the wireless LAN and the MAC address of the AP. It is not essential to record.

[Second Embodiment]
In the first embodiment described above, the AP sends the notification to the attendance management server 5 every time the wireless connection with the terminal is completed or the wireless connection with the terminal is disconnected. On the other hand, in the second embodiment, every time the terminal completes the wireless connection with the AP or disconnects the wireless connection with the AP, the terminal sends the notification.

  The system configuration as an attendance management system is the same as that of the first embodiment shown in FIG. 1 in the case of the second embodiment. The configuration of the APs 11, 21, 31, and 32 in the case of the second embodiment is completely the same as that of the first embodiment except that the wireless connection completion notification and the wireless connection disconnection notification are not sent to the attendance management server 5. It is the same.

  In addition, the configuration of the attendance management server 5 in the case of the second embodiment is configured to receive a wireless connection completion notification and a wireless connection disconnection notification from the mobile phone terminal 6 instead of receiving from the AP. However, the rest is exactly the same as in the first embodiment.

  The mobile phone terminal 6 has the same configuration as that of the first embodiment except that the mobile phone terminal 6 has a function of sending a wireless connection completion notification and a wireless connection disconnection notification to the attendance management server 5 instead of the AP. Is provided.

  However, in the second embodiment, the cellular phone terminal 6 transmits a wireless connection disconnection notification to the attendance management server 5 by e-mail. For this reason, the mobile phone terminal 6 has an electronic mail function and stores the electronic mail address of the attendance management server 5 in the memory 609 in advance.

  In addition, the attendance management server 5 has a function of receiving an e-mail from the mobile phone terminal 6, and when receiving the wireless connection disconnection notification by the e-mail from the mobile phone terminal 6, the attendance management server 5 Based on the AP included in the disconnection notification and the MAC address of the mobile phone terminal 6, it was determined which student's disconnection about which lecture, and the determination was made in the attendance management table of the determined lecture. It is configured to record the student's leaving time.

  In the case of the second embodiment, the mobile phone terminal 6 stores in advance a MAC address in the memory 609 as an example of identification information of the AP for attendance management. That is, as described in the first embodiment, the student accesses the attendance management server 5 from the mobile phone terminal 6, registers the lecture he / she wants to receive, and connects the AP for the classroom where the lecture is performed. In this second embodiment, the MAC address of the AP is also acquired at the same time. Then, the acquired MAC address of the AP is stored in the memory 609 as identification information of the AP for attendance management.

  When the mobile phone terminal 6 is wirelessly connected to the AP by the wireless LAN function, the mobile phone terminal 6 determines whether or not the AP is for attendance management. When the mobile phone terminal 6 determines that the AP is for attendance management, The wireless connection completion notification including the MAC address of the own terminal is sent to the attendance management server 5 through the connected wireless LAN.

  Further, when the mobile phone terminal 6 disconnects the wireless connection with the AP for attendance management, the mobile phone terminal 6 sends a wireless connection disconnection notification including the MAC address of the AP that has disconnected the wireless connection and the MAC address of the own terminal. It is sent to the attendance management server 5 by mail. That is, since information cannot be transmitted from the mobile phone terminal 6 to the attendance management server 5 through the wireless LAN after the wireless connection is disconnected, in this example, the mobile phone terminal 6 transmits the attendance management server 5 by e-mail. To send to.

  FIG. 16 shows a flowchart of a processing operation example of the main part of the mobile phone terminal 6 in the second embodiment. Each step of the flowchart of FIG. 16 is executed by the CPU 601 of the mobile phone terminal 6 according to the program in the ROM 602.

  First, the CPU 601 of the mobile phone terminal 6 determines whether or not the wireless connection with the AP has been completed (step S401). If it is determined in step S401 that no wireless connection is made, the CPU 601 executes other processing (step S402).

  When it is determined in step S401 that the wireless connection with the AP is completed, the CPU 601 refers to the MAC address to determine whether the wirelessly connected AP is a stored attendance management AP. It discriminate | determines (step S403).

  If it is determined in step S403 that the wirelessly connected AP is not a stored attendance management AP, the CPU 601 enables communication through the wireless LAN via the connected AP (step S404). It is determined whether or not the wireless connection is disconnected (step S405). If it is determined in step S405 that the wireless connection with the AP has not been disconnected, the CPU 601 returns to step S404 and maintains the wireless LAN communication enabled state. If it is determined in step S405 that the wireless connection with the AP has been disconnected, the CPU 601 ends this processing routine.

  If it is determined in step S403 that the wirelessly connected AP is a stored attendance management AP, the CPU 601 transmits the MAC address of the terminal itself and the wireless address to the attendance management server 5 through the established wireless LAN. A wireless connection completion notification including the MAC address of the connected AP is sent (step S406).

  In the same manner as in the first embodiment, the attendance management server 5 determines which lecture (classroom) it is from the MAC address of the AP included in the wireless connection completion notification and the reception time, and Based on the MAC address of the mobile phone terminal 6 included in the wireless connection completion notification, it is determined which student is the wireless connection completion notification. Then, the attendance management server 5 records the reception time of the wireless connection completion notification in the column of the determined student room entry time of the attendance management table of the determined lecture, as in the case of the first embodiment.

  On the other hand, the CPU 601 of the mobile phone terminal 6 enables communication through the wireless LAN via the connected AP (step S407). Thereby, information can be exchanged between the attendance management server 5 and the mobile phone terminal 6 through the wireless LAN.

  Then, the CPU 601 of the mobile phone terminal 6 determines whether or not the wireless connection with the AP has been disconnected (step S408). If it is determined in step S408 that the wireless connection with the AP has not been disconnected, the CPU 601 returns to step S407 and maintains the wireless LAN communication enabled state.

  If it is determined in step S408 that the wireless connection with the AP has been disconnected, the CPU 601 sends a wireless connection disconnection notification including the MAC address of the own terminal and the MAC address of the AP that has disconnected the wireless connection. It is sent to the attendance management server 5 by mail (step S409). Then, this processing routine ends.

  The attendance management server 5 determines whether or not the electronic mail of the wireless connection completion notification is an electronic mail from the mobile phone terminal 6 having the registered MAC address, and the electronic mail from the mobile phone terminal 6 having the registered MAC address is determined. When it is determined that it is a mail, it is determined which lecture (classroom) it is from the MAC address of the AP included in the received e-mail and the reception time, and the mobile phone included in the wireless connection completion notification It is determined from the MAC address of the telephone terminal 6 which student is the wireless connection disconnection notification. Then, the attendance management server 5 records the reception time of the wireless connection disconnection notification in the determined student leaving time column of the determined attendance management table of the lecture as in the case of the first embodiment. .

  As described above, the second embodiment is different from the first embodiment only in that the mobile phone terminal sends a wireless connection completion notification and a wireless connection disconnection notification in place of the AP. Others are the same as those in the first embodiment, and the second embodiment can provide the same effects as those in the first embodiment described above.

  In the description of the second embodiment described above, the time at which the attendance management server 5 receives the wireless connection completion notification is the entry time to the classroom where the lecture is being conducted, and the time at which the wireless connection disconnection notification is received. Is the leaving time from the classroom where the lecture was held, but the mobile phone terminal 6 sends the wireless connection completion notification and the wireless connection disconnection notification to the attendance management server 5 including the time. Of course.

  In the description of the second embodiment described above, the mobile phone terminal 6 sends a wireless connection completion notification to the attendance management server 5 every time wireless connection with the AP is completed, and wirelessly communicates with the AP. Each time the connection is disconnected, a wireless connection disconnection notification is sent to the attendance management server 5.

  However, the mobile phone terminal 6 does not send the notification to the attendance management server 5 every time the wireless connection with the AP is completed or the wireless connection with the AP is disconnected, but the time when the wireless connection is completed. And the MAC address as the identification information of the AP, the time when the wireless connection is disconnected, and the MAC address as the identification information of the AP are stored, and the owner of the mobile phone terminal 6 finishes the lecture Thus, an operation instruction may be given to send all the stored notification information to the attendance management server 5.

[Other Embodiments and Modifications]
In the first and second embodiments described above, the terminal possessed by the person who is attended and managed is a mobile phone terminal, but this is an example, and any terminal can be used as long as it is a mobile terminal having a wireless LAN function. There may be.

  Further, although the MAC address is used as the terminal identification information (terminal ID), it is not limited to this. For example, if the terminal is a mobile phone terminal, the telephone number may be used, or identification information set by the user of the terminal may be used.

  In the above-described embodiment, the AP and the attendance management server are connected via a wired LAN. However, the AP and the attendance management server may be connected via a wireless communication path.

  Moreover, although the above embodiment is a case where this invention is applied to attendance management of a university lecture, this invention is not necessarily applied only in such a case. In the present invention, only when the connection information for a specific wireless LAN is set in the AP, a terminal that exists within the radio wave range of the AP can wirelessly connect to the AP. It can also be applied when it is necessary to prove that the user was in a specific place at a specified time.

  DESCRIPTION OF SYMBOLS 4 ... Wired LAN, 5 ... Attendance management server, 6 ... Mobile phone terminal, 11, 21, 31, 32 ... AP, 106 ... Connection information storage unit, 107 ... Attendance management information generation unit, 507 ... Attendance management table memory 508: Information storage unit for each lecture connection, 620: Wireless LAN transmission / reception circuit

Claims (5)

An access point device for wireless LAN that is connected through the server-side communication path, acquiring at least, the server side, the identification information of the access point non linear terminal connected to device, from the access point device or the terminal An attendance management system for managing attendance of a user corresponding to the identification information of the terminal,
Before Symbol access point device,
Means for acquiring and changing the setting of the wireless LAN connection information from the server side through the communication path ;
A connection that executes the wireless connection in response to a connection request from the terminal when a terminal in which the same connection information as the wireless LAN connection information that has been changed in the setting enters the wireless LAN connection area Means,
Disconnecting means for disconnecting the wireless connection of the terminal when the terminal in the wireless connection state is out of a wireless LAN connection range;
With
The access point device or the terminal is
A notification that the access point device and the terminal are wirelessly connected and a notification that the wireless connection between the access point device and the terminal is disconnected are sent to the server side together with the identification information of the terminal. A means of sending,
The server side
Prior to the start of attendance management, means for sending the wireless LAN connection information to the access point device through the communication path;
Means for detecting the time when the user corresponding to the identification information of the terminal is present from the time of the wireless connection and the time of disconnection of the wireless connection in response to the notification;
Attendance management system comprising: a. In attendance management system comprising an access point apparatus for wireless LAN that is connected through the server-side communication path, at least, the server side, the identification information of the non-linear terminal connected to the access point device, the access point device or An attendance management method for managing attendance of a user corresponding to the terminal identification information obtained from the terminal,
Before Symbol access point device,
Obtaining the wireless LAN connection information from the server through the communication path and changing the setting ;
A connection that executes the wireless connection in response to a connection request from the terminal when a terminal in which the same connection information as the wireless LAN connection information that has been changed in the setting enters the wireless LAN connection area Process,
A disconnecting step of disconnecting the wireless connection of the terminal when the terminal in the wireless connection is out of a wireless LAN connection range;
Have
The access point device or the terminal is
A notification that the access point device and the terminal are wirelessly connected in the connection step, and a notification that the wireless connection between the access point device and the terminal is disconnected in the disconnection step. A step of sending to the server side together with the identification information;
The server side
Prior to the start of attendance management, sending the wireless LAN connection information to the access point device through the communication path;
Receiving the notification, detecting the time at which the user corresponding to the identification information of the terminal is present from the time of the wireless connection and the time of disconnection of the wireless connection;
An attendance management method characterized by comprising: Obtaining identification information of a terminal wirelessly connected to an access point apparatus for wireless LAN from the access point apparatus or the terminal, managing attendance of a user corresponding to the identification information of the terminal, and managing the attendance Prior to starting, the wireless LAN connection information is sent to the access point device through the communication path, and the access point device or the terminal notifies that the access point device and the terminal are wirelessly connected. And receiving the notification that the wireless connection between the access point device and the terminal has been disconnected, and corresponding to the identification information of the terminal from the time of the wireless connection and the time of disconnection of the wireless connection access point for the wireless LAN are connected through a communication channel to the server side to detect the time at which the user is attending A location,
Means for acquiring and changing the setting of the wireless LAN connection information from the server side through the communication path ;
A connection that executes the wireless connection in response to a connection request from the terminal when a terminal in which the same connection information as the wireless LAN connection information that has been changed in the setting enters the wireless LAN connection area Means,
Disconnecting means for disconnecting the wireless connection of the terminal when the terminal in the wireless connection state is out of a wireless LAN connection range;
An access point device for a wireless LAN, comprising: Means for obtaining and changing the setting of wireless LAN connection information from the server side through a communication path, and a terminal in which the same connection information as the wireless LAN connection information is set enter the wireless LAN connection area A connection means for executing the wireless connection in response to a connection request from the terminal, and a disconnection for disconnecting the wireless connection of the terminal when the terminal in the wireless connection state is out of a wireless LAN connection range. Means for connecting to the access point device for wireless LAN through the communication path, and sending the wireless LAN connection information to the access point device through the communication path prior to the start of attendance management. ,
At least the identification information of the access point non linear terminal connected to device, means for obtaining from the access point device or the terminal,
A notification that the access point device and the terminal are wirelessly connected, and a notification that the wireless connection between the access point device and the terminal is disconnected, together with the identification information of the terminal, the access point device Or means for detecting the time at which the user corresponding to the identification information of the terminal is present from the time of the wireless connection and the time of disconnection of the wireless connection received from the terminal;
A server comprising A server side, and a wireless LAN access point device connected to the server side through a communication path,
The access point device is
Means for acquiring and changing the setting of the wireless LAN connection information from the server side through the communication path;
A connection that executes the wireless connection in response to a connection request from the terminal when a terminal in which the same connection information as the wireless LAN connection information that has been changed in the setting enters the wireless LAN connection area Means,
Disconnecting means for disconnecting the wireless connection of the terminal when the terminal in the wireless connection state is out of a wireless LAN connection range;
With
The server side
Prior to the start of attendance management, means for sending the wireless LAN connection information to the access point device through the communication path;
Upon receiving a notification that the access point device and the terminal are wirelessly connected and a notification that the wireless connection between the access point device and the terminal is disconnected, the time of the wireless connection and the wireless Means for detecting the time at which the user corresponding to the identification information of the terminal is present from the disconnection time;
The portable terminal connected to the access point device of the attendance management system comprising:
A functional unit of a wireless LAN for wireless connection with the access point device ;
It means for the connection information of a wireless LAN, is obtained from the server via the communication path is set to the function of the wireless LAN, and
A notification that the access point device and the terminal are wirelessly connected by the connection unit of the access point device by the function unit of the wireless LAN , and the access point device by the disconnection unit of the access point device Means for sending a notification that the wireless connection with the terminal has been disconnected to the server together with identification information of the terminal;
A mobile terminal comprising:

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