JP6729035B2 - Management system, wireless terminal and program - Google Patents

Description

The present invention relates to a management system, a wireless terminal and a program.

2. Description of the Related Art In recent years, efforts have been made to improve work that was conventionally inefficient due to manual work, etc. in preparations for lectures by lecturers such as university teachers, and work during or after lectures. For example, in the conventional attendance management of students, the method of distributing a roll call by a teacher or an attendance card, which is a paper medium, and filling in the names of attendees and collecting them, was adopted. It is a burden on the lecture management side.

Therefore, conventionally, wireless access points that perform Bluetooth (registered trademark) communication with the wireless terminals of attendees are dispersedly arranged in a classroom or the like, and the current position of each wireless terminal is estimated based on the radio field intensity received by the wireless access points. However, a technique for attendance management has been proposed (see, for example, Patent Document 1). Further, conventionally, an IMES (Indoor MEssaging System) distribution device is attached to the ceiling (lighting fixture) of the lecture place, and the position information of the communication terminal owned by the user is acquired by the distribution device using RFID (Radio Frequency IDentification) or the like. A technique for managing attendance status has been proposed (for example, see Patent Document 2).

Also, in recent years, a lecture method called active learning has been introduced, in which students do not participate in one-way lectures but cultivate the ability of students to actively participate and solve problems. In this active learning, it is common to divide a plurality of students into groups for discussion and group work. Therefore, there is a demand for a technique capable of managing which student has formed a group with whom.

By the way, in the Bluetooth (registered trademark) communication, the detected radio wave intensity decreases as the communication distance increases, and thus an error may occur in the position accuracy. Therefore, in Patent Document 1 described above, in order to improve the position accuracy, it is necessary to disperse a plurality of wireless access points in a classroom, and there is a problem that the cost increases. Further, also in the above-mentioned Patent Document 2, since the communication range of the distribution device is narrow, it is necessary to attach a plurality of distribution devices to each lighting fixture, which causes a problem of increased cost. Further, in the above-mentioned conventional technique, it is not possible to manage which student has formed a group with whom, and there is room for further improvement in performing active learning.

The present invention has been made in view of the above, and an object of the present invention is to provide a management system, a wireless terminal, and a program capable of efficiently managing terminals and managing the status of grouping. ..

In order to solve the above-mentioned problems and achieve the object, the present invention is a management system having a wireless terminal and a management apparatus for managing the wireless terminal, wherein the wireless terminal is a first wireless communication system. A first wireless communication unit that wirelessly communicates with the management device by using a second wireless communication system that is different from the first wireless communication system, and a second wireless communication system that wirelessly communicates with another wireless terminal. radio wave of the wireless communication means, said control signal receiving means for the second via the wireless communication unit receiving a control signal transmitted from said another wireless terminal, the control signal which the control signal received by the receiving means Based on the strength, a calculating unit that calculates a distance to the other wireless terminal that has transmitted the control signal, and the other wireless whose distance is within a threshold value among the distances calculated by the calculating unit. a detecting means for detecting the terminal identifier of the terminal, terminal identifier of the other wireless terminal that is detected by the detecting means, the detection result information containing the terminal identifier of the self wireless terminal, said first radio A transmitting unit for transmitting to the management device via a communication unit, a control signal transmitting unit for transmitting a control signal to the other wireless terminal via the second wireless communication unit, and the first wireless communication unit. According to a switching instruction signal for switching between transmission and reception of the control signal received from the management device via, a switching means for switching the operation of the control signal transmission means and the control signal receiving means , The management device divides the wireless terminals having the terminal identifier into groups based on a receiving unit that receives the detection result information transmitted from each of the wireless terminals, and the terminal identifier included in the detection result information. And managing means for managing the wireless terminal and switching instruction transmitting means for transmitting the switching instruction signal to each of the wireless terminals .

According to the present invention, terminal management can be performed efficiently and the status of grouping can be managed.

FIG. 1 is a diagram schematically illustrating an example of the system configuration of the management system according to the embodiment. FIG. 2 is a diagram illustrating an example of a hardware configuration of the wireless terminal according to the embodiment. FIG. 3 is a diagram illustrating an example of a hardware configuration of the wireless AP according to the embodiment. FIG. 4 is a diagram illustrating an example of the hardware configuration of the management server according to the embodiment. FIG. 5 is a block diagram showing an example of the functional configuration of the wireless terminal, wireless AP, and management server according to the embodiment. FIG. 6 is a sequence diagram for explaining an example of the operation of the wireless AP according to the embodiment. FIG. 7 is a diagram schematically showing an example of the data configuration of the management information according to the embodiment. FIG. 8 is a flowchart showing an example of a detection result transmission process executed by the wireless terminal of the embodiment. FIG. 9 is a flowchart illustrating an example of management processing executed by the management server of the embodiment. FIG. 10 is a flowchart showing another example of management processing executed by the management server of the embodiment.

Hereinafter, embodiments of a management system, a wireless terminal, and a program according to the present invention will be described in detail with reference to the accompanying drawings. In the following embodiments, an example will be described in which the management system, the wireless terminal, and the program of the present invention are applied to a facility such as a university where attendees of a lecture or event (hereinafter collectively referred to as a lecture) gather. The present invention is not limited to the embodiments.

FIG. 1 is a diagram schematically illustrating an example of a system configuration of a management system 10 according to the embodiment. As illustrated in FIG. 1, the management system 10 includes wireless terminals 100_1 to 100_5, a wireless AP (access point) 200, and a management server 300. In the following description, the wireless terminals 100-1 to 100-5 are simply referred to as the wireless terminal 100 unless it is necessary to distinguish them. The numbers of the wireless terminals 100 and the wireless APs 200 are not limited to the example of FIG.

The wireless terminal 100 and the wireless AP 200 are connected by wireless communication based on the first wireless communication system. The wireless terminal 100 and the wireless AP 200 are connected by, for example, a method according to a wireless LAN of IEEE (Institute of Electrical and Electronics Engineers) 802.11 standard. Further, the wireless terminals 100 are connected to each other by short-distance wireless communication conforming to the second wireless communication system. The wireless terminals 100 are connected to each other by a wireless communication method such as BLE (Bluetooth (registered trademark) Low Energy). The wireless AP 200 and the management server 300 are connected by wire or wireless communication (first wireless communication method). In addition, it is preferable that the first wireless communication system has a longer communication distance than the second wireless communication system.

The wireless terminal 100 is a portable wireless terminal device owned by each of users (for example, students) who are scheduled to attend a lecture. The wireless terminal 100 is, for example, a mobile terminal such as a smartphone, a tablet terminal, a PDA (Personal Digital Assistant), or a notebook PC (Personal Computer).

The wireless AP 200 is an access point (base station) or the like for communication according to the first wireless communication method. The wireless AP 200 is provided, for example, in a facility where a lecture is held. The management server 300 is a server device that manages the attendance status of users. The management server 300 is provided, for example, inside the facility where the lecture is held or outside the facility. Further, the management server 300 may be realized by a PC or the like operated by the teacher.

Hereinafter, each device which comprises the management system 10 mentioned above is demonstrated.

FIG. 2 is a diagram illustrating an example of the hardware configuration of the wireless terminal 100. As shown in FIG. 2, the wireless terminal 100 includes a control unit 101 such as a CPU (Central Processing Unit), a storage unit 102 such as a ROM (Read Only Memory) or a RAM (Random Access Memory), and a first wireless communication. The unit 103 and the second wireless communication unit 104 are provided.

The control unit 101 sets a predetermined area of the RAM as a work area and executes various processes in cooperation with various programs stored in advance in a storage device such as a ROM, thereby controlling the operation of each unit included in the wireless terminal 100. Control.

The first wireless communication unit 103 has a communication interface conforming to the first wireless communication system and a communication control unit thereof. The first wireless communication unit 103 establishes communication with the wireless AP 200 and transmits/receives various data.

The second wireless communication unit 104 has a communication interface conforming to the second wireless communication system and a communication control unit thereof. The second wireless communication unit 104 establishes communication with other wireless terminals 100 (second wireless communication unit 104) around the wireless terminal 100 of its own, and transmits and receives various data. More specifically, the second wireless communication unit 104 transmits/receives a control signal called a beacon signal. In the present embodiment, the beacon signal is mainly used for specifying the positional relationship between the wireless terminals 100. The beacon signal is assumed to include a terminal identifier such as a UUID (Universally Unique Identifier) or a MAC address that can identify the wireless terminal 100 that is the transmission source.

FIG. 3 is a diagram showing an example of the hardware configuration of the wireless AP 200. As shown in FIG. 3, the wireless AP 200 includes a control unit 201 such as a CPU, a storage unit 202 such as ROM or RAM, a wireless communication unit 203, and a wired communication unit 204.

The control unit 201 uses a predetermined area of the RAM as a work area and executes various types of processing in cooperation with various programs stored in advance in a storage device such as a ROM, thereby centralizing the operation of each unit included in the wireless AP 200. To control.

The wireless communication unit 203 has a communication interface conforming to the first wireless communication system and a communication control unit thereof. The wireless communication unit 203 establishes communication with each of the wireless terminals 100 and exchanges various data. The wired communication unit 204 has a wired LAN communication interface and a communication control unit thereof. The wired communication unit 204 transmits/receives various data to/from the management server 300 via a network such as the Internet. In the present embodiment, the wireless AP 200 has a configuration capable of accessing the management server 300 via the wired communication unit 204, but is not limited to this, and a configuration capable of accessing the management server 300 via the wireless communication unit 203. May be

FIG. 4 is a diagram illustrating an example of the hardware configuration of the management server 300. As shown in FIG. 4, the management server 300 includes a control unit 301 such as a CPU, a storage unit 302 such as a ROM and a RAM, a wired communication unit 303, an auxiliary storage unit 304 such as an SSD and an HDD, and a display and the like. The display unit 305 and an input unit 306 such as a mouse, a keyboard, and a touch panel are provided. The wired communication unit 303, the auxiliary storage unit 304, the display unit 305, and the input unit 306 may be built-in or externally attached.

The control unit 301 configures the management server 300 by using a predetermined area of the RAM as a work area and executing various types of processing in cooperation with various programs stored in advance in a storage device such as the ROM or the auxiliary storage unit 304. Controls the operation of each part.

The wired communication unit 303 has a communication interface for wired LAN and its communication control unit. The wired communication unit 303 transmits/receives various data to/from the wireless AP 200 via a network such as the Internet.

The auxiliary storage unit 304 stores various programs executed by the control unit 301 and various setting information. The auxiliary storage unit 304 also stores management information 3041 for managing the attendance status of each user. The management information 3041 will be described later.

FIG. 5 is a block diagram showing an example of the functional configuration of the wireless terminal 100, the wireless AP 200, and the management server 300. As shown in FIG. 5, the wireless AP 200 includes a switching instruction transmission unit 251 and a detection result transfer unit 252 as functional units. Some or all of these functional units may have a software configuration realized on the RAM by the cooperation of the CPU and the program stored in the ROM. In addition, a part or all of these functional units may be a hardware configuration realized by one or a plurality of processing circuits (for example, the wireless communication unit 203, the wired communication unit 204, etc.) designed to realize each function. Good.

The switching instruction transmission unit 251 transmits a switching instruction signal for instructing the transmission or reception of the beacon signal to each of the wireless terminals 100 by cooperating with the wireless communication unit 203. For example, the switching instruction transmitting unit 251 sequentially transmits, to each of the wireless terminals 100 with which communication has been established, a switching instruction signal instructing the transmission of a beacon signal at predetermined time intervals (for example, 5 second intervals).

Here, FIG. 6 is a sequence diagram for explaining an example of the operation of the wireless AP 200 (switching instruction transmitting unit 251). Note that FIG. 6 illustrates an example in which each of the wireless terminals 100 (100_1 to 100_5) illustrated in FIG. 1 is a transmission target.

First, the switching instruction transmitting unit 251 transmits a switching instruction signal instructing the transmission of the beacon signal to the wireless terminal 100_1 (step S11). Upon receiving the switching instruction signal instructing the transmission of the beacon signal, the wireless terminal 100_1 starts transmitting the beacon signal (step S12). At this time, the wireless terminals 100_2 to 100_5 receive the beacon signal. The switching instruction transmission unit 251 may be configured to explicitly transmit a switching instruction signal instructing reception of the beacon signal to the wireless terminals 100_2 to 100_5.

The switching instruction transmitting unit 251 transmits a switching instruction signal instructing the wireless terminal 100_2 to transmit a beacon signal when 5 seconds have elapsed after the transmission to the wireless terminal 100_1 (step S13). Accordingly, the wireless terminal 100_2 starts transmitting the beacon signal (step S14). In addition, it is preferable to adjust the transmission times of the beacon signals between the wireless terminals 100 so that they do not overlap. For example, the switching instruction transmitting unit 251 may transmit the switching instruction signal instructing the reception of the beacon signal to the wireless terminal 100_1 before transmitting the switching instruction signal instructing the wireless terminal 100_2 to transmit the beacon signal.

Subsequently, the switching instruction transmitting unit 251 sequentially transmits the switching instruction signal instructing the transmission of the beacon signal to each of the wireless terminals 100_3 to 100_5 every 5 seconds (steps S15, S17, S19). Beacon signals are sequentially transmitted from each of 100_3 to 100_5 (steps S16, S18, S20). Then, the switching instruction transmitting unit 251 transmits the switching instruction signal instructing the wireless terminal 100_1 to transmit the beacon signal again 5 seconds after the transmission to the wireless terminal 100_5 (step S21). A beacon signal is transmitted from 100_1 (step S22). Similarly thereafter, the switching instruction transmission unit 251 sequentially transmits a switching instruction signal instructing the transmission of the beacon signal to each of the wireless terminals 100_1 to 100_5.

Returning to FIG. 5, the detection result transfer unit 252 cooperates with the wireless communication unit 203 to receive the detection result information transmitted from each of the wireless terminals 100. The detection result transfer unit 252 transmits (transfers) the detection result information received from each of the wireless terminals 100 to the management server 300 by cooperating with the wired communication unit 204. The detection result information will be described later.

On the other hand, the wireless terminal 100, as shown in FIG. 5, has a switching instruction receiving unit 151, a beacon transmission/reception switching unit 152, a beacon transmitting unit 153, a beacon receiving unit 154, a radio wave intensity measuring unit 155, and a group detecting unit. 156 and a detection result transmission unit 157. Some or all of these functional units may have a software configuration realized on the RAM by the cooperation of the CPU and the program stored in the ROM. Further, some or all of these functional units are realized by one or a plurality of processing circuits (for example, the first wireless communication unit 103, the second wireless communication unit 104, etc.) designed to realize each function. It may be a hardware configuration.

The switching instruction receiving unit 151 cooperates with the first wireless communication unit 103 to receive the switching instruction signal transmitted from the wireless AP 200.

The beacon transmission/reception switching unit 152 switches transmission/reception based on the switching instruction signal received by the switching instruction receiving unit 151 so that either one of the beacon transmitting unit 153 and the beacon receiving unit 154 operates. Specifically, the beacon transmission/reception switching unit 152 operates the beacon transmission unit 153 when the switching instruction signal instructs transmission of the beacon signal. The beacon transmission/reception switching unit 152 operates the beacon receiving unit 154 when the switching instruction signal instructs reception of the beacon signal. When the switching instruction signal instructs the transmission of the beacon signal, the beacon transmission/reception switching unit 152 may operate the beacon transmission unit 153 until the next switching instruction signal instructing the reception of the beacon signal is received. After transmitting the beacon signal a predetermined number of times (for example, three times), the beacon receiving unit 154 may be switched to.

The beacon transmission unit 153 transmits (broadcasts) a beacon signal to other wireless terminals 100 by cooperating with the second wireless communication unit 104. Specifically, the beacon transmission unit 153 transmits a beacon signal to another wireless terminal 100 according to the operation instruction of the beacon transmission/reception switching unit 152. Here, the standard of the beacon signal to be transmitted is not particularly limited, and may be, for example, an iBeacon (registered trademark) Advertise packet.

The beacon receiving unit 154 receives a beacon signal transmitted from another wireless terminal 100 by cooperating with the second wireless communication unit 104. Specifically, the beacon receiving unit 154 receives a beacon signal transmitted from another wireless terminal 100 according to an operation instruction of the beacon transmission/reception switching unit 152.

The radio field intensity measurement unit 155 measures the radio field intensity of the beacon signal received by the beacon reception unit 154 by cooperating with the second wireless communication unit 104. In addition, the radio wave intensity measurement unit 155 calculates the distance to another wireless terminal 100 that has transmitted the beacon signal based on the measured radio wave intensity of the beacon signal. Generally, in free space, the received radio wave intensity attenuates in inverse proportion to the square of the distance. The radio wave intensity measurement unit 155 calculates the distance between the wireless terminal 100 of its own and the other wireless terminal 100 based on the characteristics of the radio wave intensity described above.

The group detection unit 156, based on the distance calculated by the radio field intensity measurement unit 155, selects another user belonging to the same group as the user of the own terminal from the other wireless terminals 100 that transmitted the beacon signal to the own terminal. Wireless terminal 100 is detected. Specifically, the group detection unit 156 transmits the beacon signal whose distance calculated by the radio wave intensity measurement unit 155 is within a threshold value (for example, within 2 m) from the received beacon signals (other wireless terminals). 100) is detected.

For example, in recent years, a lecture method called active learning has been introduced, in which students do not participate in one-way lectures but cultivate the ability of students to actively participate and solve problems. In this active learning, it is common to divide a plurality of students into groups for discussion and group work. In such a case, by setting the threshold related to the detection of the group detection unit 156 to a value according to the size of the group, the wireless terminal 100 of another user belonging to the same group as the user of the own terminal (the other wireless terminal 100). ) Can be detected by the group detection unit 156. That is, the group detection unit 156, based on the distance calculated by the radio wave intensity measurement unit 155, selects the wireless communication of the other user who belongs to the same group as the user of the own terminal from the other wireless terminals 100 that transmitted the beacon signal. The terminal 100 is detected.

The timing at which the group detection unit 156 performs detection is not particularly limited. For example, the group detection unit 156 may perform detection each time the beacon reception unit 154 receives a beacon signal from another wireless terminal 100. In addition, for example, the group detection unit 156 receives a switching instruction signal instructing transmission of a beacon signal from its own terminal until a switching instruction signal instructing transmission of a beacon signal next is received. The detection may be performed at time intervals of.

The detection result transmitting unit 157 uses the terminal identifier of the other wireless terminal 100 (hereinafter referred to as the belonging identifier) determined to belong to the same group by the group detecting unit 156 to the terminal identifier of the own terminal (hereinafter referred to as the transmission source identifier). ) Is generated and detection result information is generated. Then, the detection result transmission unit 157 transmits the generated detection result information to the wireless AP 200 by cooperating with the first wireless communication unit 103. Here, as the belonging identifier, a terminal identifier included in a beacon signal received from another wireless terminal 100 can be used. Further, the terminal identifier of the second wireless communication unit 104 can be used as the transmission source identifier.

Even if the group detection unit 156 does not detect the belonging identifier due to the reason that the distances of all the received beacon signals exceed the threshold value, the detection result transmission unit 157 still detects the detection result information. May be generated and transmitted. In this case, the detection result transmission unit 157 generates detection result information including only the transmission source identifier and transmits the detection result information.

The detection result information transmitted by the detection result transmission unit 157 is transferred to the management server 300 by the detection result transfer unit 252 of the wireless AP 200 described above.

As shown in FIG. 5, the management server 300 includes a detection result reception unit 351 and a management unit 352. Some or all of these functional units may have a software configuration realized on the RAM by the cooperation of the CPU and the program stored in the ROM. Further, some or all of these functional units may have a hardware configuration realized by one or a plurality of processing circuits (for example, the wired communication unit 303 and the like) designed to realize each function.

The detection result receiving unit 351 cooperates with the wired communication unit 303 to receive the detection result information transmitted from the wireless AP 200. Here, the detection result information includes the transmission source identifier and the belonging identifier of another wireless terminal 100 that is determined to belong to the same group as the transmission source identifier, as described above.

The management unit 352 manages the attendance status of each user based on the detection result information received by the detection result receiving unit 351. Specifically, the management unit 352 uses the management information 3041 stored in the auxiliary storage unit 304 to manage the attendance status and grouping status of each user.

FIG. 7 is a diagram schematically showing an example of the data structure of the management information 3041. As illustrated in FIG. 7, the management information 3041 stores the terminal identifiers (100_1 to 100_5) of each wireless terminal 100 and the user information of the user who owns the wireless terminal 100 having the terminal identifier in association with each other. The user information includes information about the user, such as the user's name, grade, and student ID number. The management information 3041 includes an attendance column in which attendance information indicating attendance is registered and a group column in which a group identifier for identifying a member of the same group is registered in association with the terminal identifier of the wireless terminal 100. Remember.

When the management unit 352 acquires the detection result information via the detection result receiving unit 351, the management unit 352 searches the management information 3041 for the user corresponding to the transmission source identifier included in the detection result information, and the attendance information in the attendance column of the user. To register. FIG. 6 shows an example in which attendance information is indicated by circles. Also, the management unit 352 searches the management information 3041 for a user corresponding to the transmission source identifier and the belonging identifier included in the detection result information, and registers the group identifier indicating the same group in the group column of the user. To do. FIG. 7 shows a situation of grouping the wireless terminals 100 shown in FIG. 1, in which the group identifiers of the terminal identifiers 100_1 and 100_2 are shown as “G1” and the group identifiers of the terminal identifiers 100_3 to 100_5 are shown as “G2”. Shows an example. For users (terminal identifiers) belonging to a plurality of groups, the group identifiers of each group may be registered in the group column.

The timing and the number of times of acquisition of the detection result information by the management unit 352 are not particularly limited. For example, the management unit 352 may acquire the detection result information 10 minutes immediately after the start of the lecture, 10 minutes immediately before the end of the lecture, or the like. Further, for example, the management unit 352 may acquire the detection result information at a predetermined time interval (for example, every 10 minutes) during the lecture.

Note that the start time and end time of the lecture are set in advance, and the management unit 352 can determine whether or not the lecture is in progress by cooperating with a timing means such as an RTC (Real Time Clock) not shown. And

Various conditions can be set for registering attendance information and group information in the management information 3041. Hereinafter, an example in which two typical conditions are set will be described.

First, as a first condition, an example of setting a condition (threshold value) for the number of members of a group will be described. For example, in a lecture, when three or more users are divided into groups for group work, it is preferable to consider users who do not participate in this group work as absent. Therefore, the attendance information and the group identifier may be set to be registered on condition that the detection result information includes members (terminal identifiers) of a predetermined number or more.

In this case, the management unit 352 determines whether or not the number of terminal identifiers (affiliation identifiers) included in the detection result information is equal to or more than a threshold value (for example, 2 or more). When the number of belonging identifiers is equal to or larger than the threshold value, the management unit 352 determines that the member belongs to a group, and registers attendance information and a group identifier in the management information 3041. For example, when the number of belonging identifiers is 3 or more, the groups of the terminal identifiers 100_3 to 100_5 shown in FIG. 1 are attended, but the groups of the terminal identifiers 100_1 and 100_2 are not considered to be attended.

Even when the number of members of the group is less than the threshold value, only the group identifier may be unregistered and attendance information may be registered. Further, an upper limit value and a lower limit value may be set for the number of members of the group, and registration may be performed when the upper limit value and the lower limit value are within the range.

Next, as a second condition, an example of setting a condition (threshold value) to the number of times of judgment that attendance or belonging to a group is determined will be described. For example, in a lecture in which active learning is performed, a user who confirms the attendance and grouping status immediately after the lecture starts may leave without attending the lecture. In such a case, it is preferable that the user who has left is absent, because he/she will be in a fake attendance. Therefore, while attending the lecture, the attendance status and grouping are checked multiple times, and the attendance information and group identifier are set to be registered on condition that the attendance information and the grouping are confirmed more than a predetermined number of times (threshold value). Good.

In this case, the management unit 352 acquires the detection result information via the detection result receiving unit 351 during the lecture. Then, the management unit 352 attends each user (transmission source identifier) who is scheduled to attend, on the condition that the number of times of determination that the user has attended or belonged to a group is equal to or greater than a threshold value (for example, 5 times or more). Register information and group identifiers.

Further, the control unit 301 of the management server 300 causes the display unit 305 or the like to output the management information 3041 in response to an operation via the input unit 306 or the like. The lecturer can easily confirm the attendance status and grouping status of each user by referring to the output management information 3041. The method of outputting the management information 3041 is not particularly limited, and the management server 300 may be configured to send (output) the management information 3041 to a terminal device (not shown) owned by the lecturer.

The operation of the management system 10 described above will be described below. First, the operation of the wireless terminal 100 will be described with reference to FIG. Here, FIG. 8 is a flowchart showing an example of the detection result transmission process executed by the wireless terminal 100.

First, the switching instruction receiving unit 151 waits until it receives a switching instruction signal from the wireless AP 200 (step S31; No). The beacon transmission/reception switching unit 152 may be configured to operate the beacon reception unit 154 so as to receive the beacon signal by shifting to step S34 while waiting for the switching instruction signal.

When the switching instruction receiving unit 151 receives the switching instruction signal (step S31; Yes), the beacon transmission/reception switching unit 152 determines whether or not the switching instruction signal instructs transmission of a beacon signal (step S32). When the switching instruction signal instructs transmission of the beacon signal (step S32; Yes), the beacon transmission/reception switching unit 152 operates the beacon transmission unit 153 to transmit the beacon signal to the other wireless terminal 100 a predetermined number of times ( For example, it is transmitted three times (step S33), and the process proceeds to step S34.

On the other hand, when the switching instruction signal instructs reception of the beacon signal (step S32; No), the beacon transmission/reception switching unit 152 proceeds to step S34. In step S34, the beacon transmission/reception switching unit 152 operates the beacon reception unit 154 to receive the beacon signal transmitted from another wireless terminal 100 (step S34).

The beacon receiving unit 154 determines whether or not a beacon signal has been received from another wireless terminal 100 (step S35), and when not receiving (step S35; No), returns to step S31. When the beacon receiving unit 154 receives the beacon signal (step S35; Yes), the radio wave intensity measuring unit 155 calculates the distance from the radio signal intensity of the beacon signal to another wireless terminal 100 that has transmitted the beacon signal (step S35). S36). Next, the group detection unit 156 detects the transmission source of the beacon signal whose distance is within the threshold based on the distance calculated in step S36 (step S37).

Then, the detection result transmission unit 157 transmits the detection result information indicating the detection result of step S37 to the wireless AP 200 (step S38), and returns to step S31. The detection result information transmitted to the wireless AP 200 is transferred (transmitted) to the management server 300 by the wireless AP 200.

Next, the operation of the management server 300 will be described with reference to FIGS. 9 and 10. Here, FIG. 9 is a flowchart showing an example of management processing executed by the management server 300. Note that FIG. 9 shows the operation when the above-mentioned first condition is set.

First, when the start time of the lecture is reached (step S41), the detection result receiving unit 351 receives the detection result information transmitted from the wireless AP 200 (step S42). Next, the management unit 352 determines whether or not the number of belonging identifiers included in the detection result information is equal to or larger than the threshold value (step S43).

When the number of belonging identifiers is equal to or larger than the threshold value (step S43; Yes), the management unit 352 determines that the user of the transmission source identifier (wireless terminal 100) included in the detection result information is attending the lecture ( Step S44). Then, the management unit 352 registers the attendance information and the group identifier in the management information 3041 based on the detection result information (step S45), and then ends this processing. Specifically, the management unit 352 registers attendance information in the attendance column corresponding to the transmission source identifier included in the detection result information, and groups corresponding to the transmission source identifier and the belonging identifier included in the detection result information. A group identifier representing the same group is registered in the field.

If the number of belonging identifiers is less than the threshold (step S43; No), the management unit 352 determines that the user of the transmission source identifier (wireless terminal 100) included in the detection result information has not attended the lecture. Then (step S46), the present process is terminated.

Through the management processing of FIG. 9, the management system 10 manages, as attendance, users who participate in the lecture and whose group constituent number is equal to or greater than a threshold value. As a result, when the management system 10 divides a plurality of users into groups equal to or more than a predetermined number (threshold value) to perform group work, the users existing in the classroom but not participating in the group work are absent. It can be handled.

FIG. 10 is a flowchart showing another example of management processing executed by the management server 300. FIG. 10 shows the operation when the above-mentioned second condition is set.

First, when the start time of the lecture is reached (step S51), the detection result receiving unit 351 starts receiving the detection result information from the wireless AP 200 (step S52). Next, the management unit 352 determines whether the user having the transmission source identifier belongs to the group based on the number of belonging identifiers included in the detection result information (step S53). Here, when the number of belonging identifiers is less than the threshold value, the management unit 352 determines that it does not belong to a group (step S53; No), and proceeds to step S58.

On the other hand, when the number of belonging identifiers is equal to or larger than the threshold value, the management unit 352 determines that it belongs to the group (step S53; Yes), and increments the number of determinations by 1 (step S54). It should be noted that the number of determinations is counted for each transmission source identifier.

Subsequently, the management unit 352 determines whether or not the number of determinations of determining that the transmission source identifier included in the detection result information received in step S52 belongs to a group is a threshold value (for example, 5 times) or more ( Step S55).

When the number of determinations is equal to or greater than the threshold value (step S55; Yes), the management unit 352 determines that the user of the transmission source identifier (wireless terminal 100) included in the detection result information is attending the lecture (step S56). ). Then, the management unit 352 registers the attendance information and the group identifier in the management information 3041 based on the detection result information (step S57), and ends this processing. Specifically, the management unit 352 registers attendance information in the attendance column corresponding to the transmission source identifier included in the detection result information, and groups corresponding to the transmission source identifier and the belonging identifier included in the detection result information. A group identifier representing the same group is registered in the field.

If the number of determinations is less than the threshold value in step S55 (step S55; No), the management unit 352 proceeds to step S58. In step S58, the management unit 352 determines whether or not the lecture end time has been reached.

When the end time has not been reached (step S58; No), the management unit 352 returns the process to step S52 and continues to receive the detection result information. If it is determined that the end time has been reached (step S58; Yes), the management unit 352 indicates that the user having the transmission source identifier (wireless terminal 100) included in the detection result information has not attended the lecture. Is determined (step S59), and this processing ends.

Through the management process of FIG. 10, the management system 10 manages, as an attendee, a user whose number of determinations of being in a group is greater than or equal to a threshold. As a result, the management system 10 can treat a user who leaves the lecture immediately after the start of the lecture as absent, so that the camouflaged attendance can be prevented.

As described above, the management system 10 of the present embodiment uses the communication function (second wireless communication unit) of each wireless terminal 100 to detect the attendance status of each user and the detection result information indicating the status of grouping. Is acquired and the user (wireless terminal 100) is managed based on the detection result information. As a result, the management system 10 can acquire the attendance status of each user and the status of grouping without installing a special communication device in the facility where the lecture is held. The division situation can be managed efficiently.

Although the embodiments of the present invention have been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and the gist of the invention, and are also included in the invention described in the claims and the equivalent scope thereof.

For example, in the above-described embodiment, the switching instruction transmission unit 251 of the wireless AP 200 is configured to control the transmission of the switching instruction signal, but the present invention is not limited to this. A switching instruction signal may be transmitted. Specifically, the management unit 352 of the management server 300 may cooperate with the switching instruction transmission unit 251 to control the wireless AP 200 to transmit the switching instruction signal during the lecture holding time. Further, the management unit 352 of the management server 300 may be provided with the function of the switching instruction transmission unit 251, so that the management unit 352 may transmit the switching instruction signal via the wireless AP 200 during the lecture holding time.

Further, in the above embodiment, the wireless AP 200 corresponding to the management device and the management server 300 are separate bodies, but the invention is not limited to this, and they may be integrated. In this case, the wireless AP 200 may be built in the management server 300, or may be externally attached to the management server 300 via a connection cable such as a USB (Universal Serial Bus).

Further, the programs executed by the respective devices and management systems of the above-described embodiments are files in installable format or executable format as floppy (registered trademark) disks, CDs (Compact Discs), and CD-Rs (Compact Discs). Recordable), CD-ROM (Compact Disc Read Only Memory), DVD (Digital Versatile Disc), SD memory card (SD memory card), USB memory (Universal Serial Bus memory), etc. It may be configured to be provided.

Further, the programs executed by the respective devices and management systems of the above-described embodiments may be stored in a computer connected to a network such as the Internet and provided by being downloaded via the network.

10 management system 100 wireless terminal 101 control unit 102 storage unit 103 first wireless communication unit 104 second wireless communication unit 151 switching instruction receiving unit 152 beacon transmission/reception switching unit 153 beacon transmitting unit 154 beacon receiving unit 155 radio wave intensity measuring unit 156 Group detection unit 157 Detection result transmission unit 200 Wireless AP
251 Switching instruction transmission unit 252 Detection result transfer unit 300 Management server 351 Detection result reception unit

Japanese Patent No. 587236 JP, 2014-115936, A

Claims (10)

A management system having a wireless terminal and a management device for managing the wireless terminal,
The wireless terminal is
First wireless communication means for wirelessly communicating with the management device using a first wireless communication system;
A second wireless communication means for wirelessly communicating with another wireless terminal using a second wireless communication method different from the first wireless communication method;
A control signal receiving means for receiving a control signal transmitted from the other radio terminal via the second wireless communication means,
Based on the radio field intensity of the control signal received by the control signal receiving means, a calculating means for calculating a distance to the other wireless terminal that has transmitted the control signal,
Among the distances calculated by the calculating means, a detecting means for detecting a terminal identifier of the other wireless terminal in which the distance is within a threshold value,
And terminal identifier of the other wireless terminal that is detected by said detecting means, transmits a detection result information containing the terminal identifier of the self wireless terminal, to the management device via the first wireless communication means Transmission means,
Control signal transmitting means for transmitting a control signal to the other wireless terminal via the second wireless communication means,
Operations of the control signal transmitting unit and the control signal receiving unit are performed in response to a switching instruction signal for switching between transmission and reception of the control signal, which is received from the management device via the first wireless communication unit. Switching means for switching,
Equipped with
The management device is
Receiving means for receiving the detection result information transmitted from each of the wireless terminals,
Based on the terminal identifier included in the detection result information, management means for managing the wireless terminals of the terminal identifier by grouping,
Switching instruction transmitting means for transmitting the switching instruction signal to each of the wireless terminals,
Management system with. The management system according to claim 1, wherein the management unit determines that the wireless terminals having the terminal identifiers included in the detection result information belong to the same group. The said management means determines that the said wireless terminal of the said terminal identifier belongs to the same group, when the number of the said terminal identifier contained in the said detection result information is more than a threshold value. Management system. The management system according to claim 2 or 3, wherein the management unit manages, as attendance, a user corresponding to the wireless terminal that has been determined to belong to a group a predetermined number of times. The management system according to any one of claims 1 to 4, wherein the switching instruction transmitting unit sequentially transmits the switching instruction signal instructing each of the wireless terminals to transmit the control signal. The switching instruction transmitting means sends another switching instruction signal instructing reception of the control signal to the other wireless terminal before transmitting the switching instruction signal instructing the wireless terminal to transmit the control signal. The management system according to any one of claims 1 to 5, which transmits. A first wireless communication means for wirelessly communicating with the management device using the first wireless communication system;
A second wireless communication means for wirelessly communicating with another wireless terminal using a second wireless communication method different from the first wireless communication method;
A control signal receiving means for receiving a control signal transmitted from the other radio terminal via the second wireless communication means,
Based on the radio field intensity of the control signal received by the control signal receiving means, a calculating means for calculating a distance to the other wireless terminal that has transmitted the control signal,
Among the distances calculated by the calculating means, a detecting means for detecting a terminal identifier of the other wireless terminal in which the distance is within a threshold value,
And terminal identifier of the other wireless terminal that is detected by said detecting means, transmits a detection result information containing the terminal identifier of the self wireless terminal, to the management device via the first wireless communication means Transmission means,
Control signal transmitting means for transmitting a control signal to the other wireless terminal via the second wireless communication means,
Operations of the control signal transmitting unit and the control signal receiving unit are performed in response to a switching instruction signal for switching between transmission and reception of the control signal, which is received from the management device via the first wireless communication unit. Switching means for switching,
Wireless terminal comprising. In accordance with the switching instruction signal received from the management device via the first wireless communication means, control radio of claim 7, further comprising switching means for switching the operation of the control signal transmitting means and said control signal receiving means Terminal. The switching means causes the control signal transmitting means to transmit the control signal for a predetermined time period in response to the switching instruction signal for instructing the transmission of the control signal, and then controls the control signal by the control signal receiving means. The wireless terminal according to claim 8, wherein the operation is switched to reception. First wireless communication means for performing wireless communication with the management device using the first wireless communication method, and wireless communication with other wireless terminals by using a second wireless communication method different from the first wireless communication method. A second wireless communication means for performing communication,
A control signal receiving means for receiving a control signal transmitted from the other radio terminal via the second wireless communication means,
Based on the radio field intensity of the control signal received by the control signal receiving means, a calculating means for calculating a distance to the other wireless terminal that has transmitted the control signal,
Among the distances calculated by the calculating means, a detecting means for detecting a terminal identifier of the other wireless terminal in which the distance is within a threshold value,
And terminal identifier of the other wireless terminal that is detected by said detecting means, transmits a detection result information containing the terminal identifier of the self wireless terminal, to the management device via the first wireless communication means Transmission means,
Control signal transmitting means for transmitting a control signal to the other wireless terminal via the second wireless communication means,
Operations of the control signal transmitting unit and the control signal receiving unit are performed in response to a switching instruction signal for switching between transmission and reception of the control signal, which is received from the management device via the first wireless communication unit. Switching means for switching,
A program to make it work.

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