JP2012248086A - Attendance management system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an attendance management system capable of checking time, user and seat without requiring any input operation by a user such as attendance information.SOLUTION: An attendance management system 100 comprises: a first communication device 200; a second communication device 300; and a management apparatus 400. The first communication device is carried by a user and the second communication device is disposed at a seat S or the like located in a management area 1. Attendance or absence of a user who carries the first communication device at a seat is automatically detected through his/her body, and attendance/absence information is automatically transmitted to the management apparatus via a wireless LAN 6. The management apparatus automatically stores attendance/absence information while associating first communication device ID information included in the attendance/absence information with user ID information, and second communication device ID information with a seat location information respectively so as to enable checking of the time, the user and the occupied seat.

Description

  The present invention relates to an attendance management system for managing attendance of a user.

  A conventional attendance management system detects presence based on presence information input from an information terminal installed in a user's presence area, or does not contact a card reader installed in the user's presence area. The presence is detected by presence information such as ID information input by holding the type IC card (see, for example, Patent Document 1).

JP-A-5-167694

  In the conventional attendance management system, there is a problem that it is necessary for the user himself / herself to input the attendance information when the user is present, which places a burden on the user. Moreover, it was not what manages the user's whereabouts.

  An object of the present invention is to provide an attendance management system that makes it unnecessary to perform an input operation by a user and can confirm which user is currently in which seat.

  The first means for solving the above problem is that the first and second communication devices that perform communication using an electric field induced in the human body and the second communication device are connected by a wired or wireless communication network. A first communication device ID information storage means that comprises a management device, the first communication device being carried by a user, and storing first communication device ID information unique to the first communication device; An electric field transmission means for inducing an electric field in a user as an electric field transmission medium, and the first communication device ID information is read from the first communication device ID information storage means, and the first communication is transmitted to the electric field transmission means. First communication device ID information transmission means for transmitting machine ID information, and the second communication device detects an electric field induced by a user present in a seat in a management area and Electric field receiving means for receiving the first communication device ID information; In the communication timing of the human body communication between the second communication device ID information storage means for storing the second communication device ID information unique to the second communication device in advance and the first and second communication devices, When the electric field receiving means receives the first communication device ID information, the presence information is generated by adding the second communication device ID information and the time information at that time to the first communication device ID information. In the case where the electric field receiving means does not receive the first communication device ID information, the presence / absence information generation means for generating absence information by adding the time information at that time to the second communication device ID information, A presence / absence information transmission means for transmitting the presence / absence information generated by the presence / absence information generation means to the communication network, and the management device receives the presence / absence information on the communication network. The presence / absence information receiving means and user-specific interests Registration information indicating a correspondence relationship between the person ID information and the first communication device ID information, and registration information indicating a correspondence relationship between the seat installation location information and the second communication device ID information are stored in advance. Based on the registration information storage means and the registration information stored in advance in the registration information storage means, the first communication device ID information included in the presence / absence seat information is the user ID information, The second communication device ID information is the seat location information, the presence / absence history information generating means for generating the associated presence / absence history information, and the presence / absence history information generating means. The presence / absence history information storage means for storing the absence history information is configured to automatically detect the presence / absence of each seat using human body (electric field) communication, and the presence / absence information for each seat. Is automatically sent to the management device via the communication network. The presence / absence history information for each seat that can specify when and which user is in which seat is automatically stored in the management device.

  The second means is the first means, wherein the management device receives a service request accepting means for accepting a service related to presence information from an information terminal, and the presence of the presence in response to a service request accepted by the service request accepting means. Read away presence history information from the away history information storage means, and provide service providing means for providing the information terminal that requested the service, and in real time information terminal, when and which user, which seat It is possible to confirm whether the user is present.

  According to the present invention, by using human body (electric field) communication, input operation by a user, such as presence information, becomes unnecessary, and when and which use is determined from away / seat history information for each seat stored in the management device. It is possible to provide an attendance management system in which a person can confirm in which seat.

Configuration diagram of an attendance management system using human body communication showing an embodiment of the present invention Functional block diagram of the first communication device and the second communication device Flow chart of the first communication device Flow chart of second communication device Management device flowchart The figure which shows an example of the away seat information for every seat accumulate | stored in a 2nd communication apparatus The figure which shows an example of the away / at present history information for each seat managed by the management device

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a configuration diagram of an attendance management system 100 using human body (electric field) communication according to an embodiment of the present invention.

  In the figure, reference numeral 1 denotes a management area of the presence management system 100, which is a so-called free address office in which the seating location of the user U is not defined. The management area 1 is provided with a door 2 for the user U to enter and exit (enter / exit). In the management area 1, a plurality of seats (seat areas) S are provided for a plurality of users U to perform business or the like. Each seat S is provided with a chair 3 and a desk 4 placed on the floor. Each seat S is provided with a personal computer 5 placed on a desk 4. In the management area 1, the user U can freely use a vacant seat S.

  For such a management area 1, the presence management system 100 includes a first communication device (a transmitter for human body communication) 200 carried by each user U and a second communication installed in each seat S. And a management device 400 installed in the management area 1 and connected to each second communication device 300 via the wireless LAN 6. Each personal computer 5 is connected to the management apparatus 400 via another wireless LAN 7.

  FIG. 2 shows a functional block diagram of the first communication device 200 and the second communication device 300.

  The human body communication employed by the presence management system 100 is an electric field method, and the first communication device (human body communication transmitter) 200 and the second communication device (human body communication receiver) 300 have a certain frequency (for example, A modulated wave of 10.7 MHz) is transmitted via a dielectric user U (human body), received via the user U, and communication is performed.

  In the figure, the first communication device 200 includes a first communication device ID information storage unit 210 for storing first communication device ID information unique to the first communication device 200 in advance, and use as an electric field transmission medium. Electric field transmitter 220 for inducing an electric field in person U, and first communication device ID information is read from first communication device ID information storage unit 230 and first communication device ID information is transmitted to electric field transmitter 220. 1 communication device ID information transmission unit 230. The electric field transmission unit 220 modulates the first communication device ID information input from the first communication device ID information transmission unit 230 and outputs it as a transmission signal, and applies the transmission signal to the user U. And a transmitting electrode 222 as a transmitting antenna.

  The first communication device 200 includes an IC in which the first communication device ID information storage unit 210 (memory), the electric field transmission unit 220, and the first communication device ID information transmission unit 230 (microcomputer) are integrated into one chip. It is mounted on a power control board or the like, and has a form in which the power control board and a battery as a power source are accommodated in one case. At this time, the transmission-side electrode 222 made of a metal pad or the like is built directly under the surface of the case so as to approach the user U when the user U carries the first communication device 200. When the user U carries the first communication device 200, the user U and the transmission side electrode 222 are capacitively coupled. The first communication device 200 is provided with a band for attaching the case to a part of the user U such as the arm of the user U so that the user U and the transmission-side electrode 222 are easily capacitively coupled. You may make it the form which can be mounted in a part of U. At this time, the transmission-side electrode 222 is built directly under the back surface of the case so as to approach the user U when the case is attached to a part of the user U. Moreover, you may provide the transmission side electrode 222 with the form covered with the insulating cover on the outer side of the case so that it may be easy to carry out capacitive coupling with the user U. Further, the transmission side electrode 222 covered with an insulating cover is connected to the case (communication device main body) with an electric cord, the transmission side electrode 222 is attached to a part of the user U, and the case is attached to the user U's bag or clothes. You may carry it in your pocket. At this time, even if the case is a casing of a portable electronic device such as a mobile phone, a smart phone, or a portable audio, the electric cord is an earphone cord, and the transmission-side electrode 222 is built in the earphone. Good. A coil can be used as the transmitting antenna instead of the transmitting electrode 222.

  On the other hand, the second communication device 300 detects an electric field induced by the user U who is seated in the seat S in the management area 1 and receives the first communication device ID information. Between the first communication device 200 and the second communication device 300, the second communication device ID information storage unit 320 that stores the second communication device ID information unique to the second communication device 300 in advance. When the electric field receiver 310 receives the first communication device ID information at the communication timing of the human body communication, the second communication device ID information and the time information at that time are added to the second communication device ID information. When the seat information is generated and the electric field receiving unit 310 does not receive the first communication device ID information, the absence information (the absence information and the vacancy information can be said to be the second communication device ID information plus the time information at that time). The presence / absence information generation unit 350 and the presence / absence information generation unit 3 The standing unattended information generated at 0 and a standing Away information transmitting unit 340 for transmitting on the radio LAN 6. Further, the electric field receiving unit 310 detects the reception side electrode 311 as a reception side antenna and the electric field strength induced on the surface of the user U who is seated in the seat S via the reception side electrode 311, and receives it. A receiving circuit 312 that converts the signal into a signal and demodulates the second communication device ID information from the received signal. The presence / absence information transmission unit 340 includes a LAN controller that packetizes the presence / absence information to the wireless LAN 6 and a LAN port for connection to the wireless LAN 6. Furthermore, the second communication device 300 includes a presence / absence information storage unit 330 that temporarily stores the presence / absence information generated by the presence / absence information generation unit 350.

  The second communication device 300 is installed in each seat S at a position approaching the user U seated on the chair 3. The installation position includes a chair 3 (see FIG. 1) and a desk. In addition, it may be installed on the floor, embedded in the floor, embedded in the floor, or built in a mat placed on the floor. In addition, the second communication device 300 includes an electric field receiving unit 310, a second communication device ID information storage unit 320 (memory), an absence / seating information generation unit 350 (microcomputer), and an absence / seating information transmission unit 340. An IC in which the seat information storage unit 330 is integrated into one chip is mounted on a power supply control board, and the power supply control board and a battery as a power supply are housed in one case. At this time, the reception-side electrode 311 made of a metal pad or the like is built directly under the surface of the case so as to approach the user U when the user U is seated on the chair 3. When the user U sits on the chair 3, the reception-side electrode 311 and the electric field induced on the surface of the user U come into contact with each other. The reception side electrode 311 covered with an insulating cover is connected to the case (second communication device main body) with an electric cord, and the reception side electrode 221 is installed in a place close to the user U seated on the chair 3. The case may be installed at a position inconspicuous in the seat S away from the user U. At this time, the case may be a housing of a device fixedly installed in the seat S. Further, the case may be installed outside the seat S, and in this case, the case may be a casing of a device fixedly installed outside the seat S. A coil can be used as the receiving antenna instead of the receiving electrode 311.

  FIG. 1 shows a management apparatus 400.

  In the figure, the management device 400 is constituted by a management server, detects the seating status of each seat S using the first communication device 200 and the second communication device 300, that is, using human body communication, The second communication device 300 is accessed at regular time intervals, the presence / absence seat information for each seat S is acquired, and stored (saved) as the away history seat information for each seat S. Each second communication The presence / absence information receiving unit 410 that receives the presence / absence information for each seat S sent from the device 300 to the wireless LAN 6 and the correspondence between the user ID information unique to the user U and the first communication device ID information The registration information indicating the relationship, the registration information indicating the correspondence between the installation location information of the seat S and the second communication device ID information, and the registration information storage unit 420 that stores the registration information in advance are stored in advance. Included in absence information based on each registered information The presence / absence history information generating unit that generates the first presence / absence history information associated with the first communication device ID information as user ID information, the second communication device ID information as installation location information of the seat S, respectively. 430, and an absence / seating history information storage unit 440 that stores the absence / seating history information generated by the presence / absence history information generation unit 430.

  The management device 400 provides the presence / absence history information in response to a service request regarding presence information from the personal computer 5 as a client, and provides a service regarding presence information from the personal computer 5 installed in each seat S. Service request accepting section 450 that accepts service provision information that is read from the presence / absence history information storage section 440 in response to a service request accepted by the service request accepting section 450 and is provided to the personal computer 5 that requested the service Part 460.

  For a communication network that connects each second communication device 300 and the management device 400 and another communication network that connects each personal computer 5 and the management device 400, an existing device such as a wired LAN is used for wired communication. Can do. On the other hand, in the wireless communication, the existing standard of the wireless LAN 6 can be used. Further, the management device 400 may be installed outside the management area 1. In that case, when the management apparatus 400 is installed in a remote place, the Internet, a public line network, etc. can be utilized as a communication network.

  FIG. 3 is a flowchart of the first communication device 200, and the first communication device 200 operates as shown in the flowchart of FIG. Here, the transmission timing interval of the first communication device ID information set in advance is, for example, 2 minutes.

  (1) When the power supply of the first communication device 200 is turned on (S201), (2) the first communication device ID information transmission unit 230 has previously stored in the first communication device ID information storage unit 210. The first communication device ID information is read (S202), and (3) the timer counter is counted up (S303). (4) The first communication device ID information transmission unit 230 constantly monitors the count value of the timer counter, determines whether it is the transmission timing of the first communication device ID information, and determines the first communication device ID. If the time T1 of the transmission interval of the first communication device ID information has not elapsed, the information transmission unit 230 does nothing and continues monitoring (S204), (5), and (4) the first communication. When the time T1 of the transmission interval of the machine ID information elapses, the first communication machine ID information read in (2) is transmitted from the electric field transmission unit 220 (S205), and (6) the timer counter is cleared (S206). Return to (3).

  Then, in the loop of (3)-(6), the first communication device ID information transmission unit 230 repeats the first communication device ID information read in (2) to the electric field transmission unit 220 at regular time intervals T1. input. The electric field transmission unit 220 applies the transmission signal obtained by modulating the first communication device ID information by the transmission circuit 222 to the user U as the electric field transmission medium from the transmission side electrode 222 through capacitive coupling, and according to the transmission signal A strong electric field is induced on the surface of the user U, and the first communication device ID information is repeatedly transmitted at regular time intervals T1. Here, since the time required for transmitting one piece of first communication device ID information is instantaneous, the transmission timing interval of the first communication device ID information may be, for example, 0.5 seconds or 1 second.

  FIG. 4 is a flowchart of the second communication device 300, and the second communication device 300 operates as shown in the flowchart of FIG. Here, the human body communication timing interval set in advance to be shorter than the transmission timing interval of the first communication device ID information is, for example, 1 minute, longer than the communication timing interval of the human body communication, and the first communication. The communication timing interval of the wireless LAN communication set in advance so as to be longer than the transmission timing interval of the machine ID information is, for example, 5 minutes.

  (1) When the power of the second communication device 300 is turned on (S301), (2) the presence / absence information generation unit 350 synchronizes the time with the time of the management device 400, and the second communication device ID information storage unit The second communication device ID information stored in advance in 320 is read (S302), (3) the wireless LAN communication counter is incremented (S303), and (4) the human body communication counter is incremented (S304). (5) The presence / absence information generation unit 350 constantly monitors the count value of the human body communication counter, determines whether it is the communication timing of human body communication, and the presence / absence information generation unit 350 performs communication of human body communication. If it is not the timing, that is, the timing of detecting whether or not the user S is present in the seat S, nothing is done and monitoring is continued as it is (S305), (6), and (5) If it is the communication timing of communication, it is determined whether or not the first communication device ID information has been received (whether or not the user S is present in the seat S), and the first in (7) and (6). When the communication device ID information is received (when the user S is present in the seat S), the presence information is generated and written to the away / at present information storage unit 330 (S307a), and the first communication. When the machine ID information is not received (there is no user S in the seat S The case) generates Away information, write the resident unattended information storage unit 330 (S307b), it clears the (8) human body communication counter (S308). (9) The presence / absence information generation unit 350 also monitors the count value of the wireless LAN communication counter and determines whether or not the communication timing of the wireless LAN communication is present. If it is not the communication timing of communication (the timing of transmitting a certain number of away / attract information stored in the away / attainment information storage unit 330) to the management device 400, the process returns to (4), (10), (9) If it is the communication timing of wireless LAN communication (here, the communication timing of human body communication is every 1 minute, and the communication timing of wireless LAN communication is every 5 minutes, in other words, when 5 minutes (a certain time) elapses, in other words, stay away Connected to the wireless LAN 6 (when 5 (fixed number) of away / seat information is accumulated in the information storage unit 330), reads the 5 away / seated information temporarily accumulated in the away / seat information storage unit 330, Passing the unattended information transmission unit 340, is sent from there to the gateway of the wireless LAN 6 (S310), clears the (11) wireless LAN communication counter returns to (3) (S311).

  In the loop of (3)-(11), the presence / absence information generation unit 350 repeatedly detects the presence status of whether or not the user S is present in the seat S at regular time intervals. The presence / absence information is generated based on the detection result. At this time, the presence status of whether or not the user S is present in the seat S is determined by using the human body communication so that the user S carrying the first communication device 200 is placed on the chair 3 in the seat S. Since the detection can be automatically performed only by sitting or leaving the chair 3, the user U does not need to input the presence / absence information, and the user U is not burdened. Here, since the time required to receive one piece of the first communication device ID information is a moment, the timing interval of the human body communication may be, for example, an interval of 1 second.

  Further, the second communication device 300 communicates with the management device 400 via the wireless LAN 6 at regular time intervals, and the presence / absence information accumulated during the communication timing interval of the wireless LAN communication is automatically transmitted to the management device 400. Send to. The stored presence / absence information is automatically transmitted to the management apparatus 400 via the wireless LAN 6 at regular time intervals. Here, the amount of data for one vacant seat information is very small. Even if the communication timing of human body communication is set to, for example, 1 second and the communication timing interval of wireless LAN communication is set to, for example, 15 minutes, communication can be performed within several seconds to several tens of seconds. Therefore, the communication timing interval of the wireless LAN communication may be 1 minute, for example.

  The communication timing of the wireless LAN communication is set to be after a certain time (here, 5 minutes) has elapsed since the activation of the wireless LAN communication counter, but a certain number (here, 5) of presence / absence information is stored in the presence information storage unit 330. It may be set later by the accumulated number (the number of human body communications) of the presence / absence information in the presence information storage unit 330.

  FIG. 5 is a flowchart of the management apparatus 400, and the management apparatus 400 operates as in the flowchart of FIG.

  In presence management, (1) registration information (user ID information unique to the user U and first communication device ID information) previously stored in the registration information storage unit 420 by the presence / absence history information generation unit 430 Registration information indicating the correspondence relationship between the seat S and the location information of the seat S and the registration information indicating the correspondence relationship between the second communication device ID information) once a day at a predetermined time (for example, AM 3:00, etc. outside business hours) (Time may be read when the registration information is updated) (S401). (2) The presence / absence information receiving unit 410 receives the presence / absence information for each seat S sent from the second communication device 300 to the wireless LAN 6 (S402). (3) Based on each registered information, the presence / absence history information generation unit 430 uses the first communication device ID information and the second communication device ID information included in the individual presence / absence information as the first communication device ID information. The installation location information of the seat S and the presence / absence history information for each associated seat S are generated and stored (saved) in the presence / absence history information storage unit 440 (S403).

  In addition, (4) the service request receiving unit 450 receives (receives) a service related to presence information from the personal computer 5 installed in each seat S via the wireless LAN 7 and transfers it to the service providing unit 460 (S404). (5) The service providing unit 460 reads the presence / absence history information for each seat S from the presence / absence history information storage unit 440 in response to a service request, and provides the information to the personal computer 5 that requested the service via the wireless LAN 6 ( Send) (S405).

  FIG. 6 shows an example of the presence / absence information for each seat S accumulated in the second communication device 300. FIG. 7 shows the presence / absence history information for each seat S managed by the management device 400. An example is shown. Here, the presence / absence seat information and the presence / absence history information are the results of setting the communication timing interval of human body communication to 1 minute and the communication timing interval of wireless LAN communication to 5 minutes.

  The away / seat information shown in FIG. 6 is for a certain seat S, but in the away / seat information shown in FIG. 6, when and which first communication device 200 is present in a given seat S. It is specified whether the person has been seated or left. In the seat management system 100 of the present embodiment, such presence / absence information can be automatically generated on the second communication device 300 side by using human body communication.

  The away / seated history information shown in FIG. 7 is obtained by accumulating the away / away information shown in FIG. 6. In the away / away history information shown in FIG. It is specified whether the person U is present / seated. In the presence management system 100 of the present embodiment, such presence / absence information is automatically transmitted from the second communication device 300 to the management device 400 via the wireless LAN 6 (communication network). The seat history information can be automatically stored (saved) for each seat S on the management device 400 side.

  In the presence management system 100 of this embodiment, the presence / absence information for each seat S is automatically transmitted from each second communication device 300 to the management device 400 via the wireless LAN 6 (communication network). The away / seat history information for each seat S can be automatically stored (saved) on the management device 400 side. Accordingly, since the presence / absence history information for each seat S stored in the management device 400 can identify when and which user U is present in which seat S, the presence of this embodiment The seat management system 100 can manage when and which user U is present in which seat S from the vacant seat history information for each seat S stored in the management device 400. .

  Further, in the presence management system 100 of the present embodiment, it is confirmed in real time from the presence / absence history information for each seat S on the personal computer 5 which user U is in which seat S. can do.

  Also, in the so-called free address office environment, the seating position of the user U changes depending on the time depending on the day, so which user U is working in which place, whether or not he is in the office in the first place Although it is difficult to understand the seating status and seating location of the user U, in the seating management system 100 of the present embodiment, when and which user U is seated in which seat S, It can be confirmed on the personal computer 5 in real time.

  By the way, the presence / absence history information for each seat according to the present embodiment can be used for air conditioning in a management area and lighting ON / OFF control in addition to confirmation of a user's presence status and location.

  In the present embodiment, by installing the second communication device on both the inside and outside door knobs of the door in the management area and on the floor on both the inside and outside of the door, the direction in which the user U has passed the door can be determined. It can be detected and entry / exit can be managed.

  In the present embodiment, a so-called free address office is used as the management area, but of course, the office where the user's seating place is determined and other areas may be used as the management area. For example. By setting the area including the parking lot as the management area and installing the second communication device on the seat or handle of the automobile, it can be used for boarding management of company-owned cars and rental cars. In addition, movie theaters, baseball, theater stadiums, and concert venues are used as management areas, and the second communication device is installed in the auditorium. The train is used as the management area, and the second communication device is installed in the seats in the car. It can be used for seating management of spectators and passengers, and in this case, it is possible to check the relationship between spectators and passengers and seating by interlocking with tickets and tickets, preventing unauthorized entry and boarding Can do.

  In this embodiment, the transmission timing interval of the first communication device ID information, the communication timing interval of the human body communication, and the communication timing interval of the wireless LAN communication are each arbitrarily set, but the first communication device ID information By shortening the transmission timing interval and the communication timing interval of the human body communication, the detection accuracy of the presence status for each seat S can be increased, and conversely, by increasing the length, the battery life of each communication device can be extended. it can. Further, when the second communication device continuously detects the same presence / absence state such as being present / not present (not present, vacant), for example, by extending the communication timing interval of human body communication. The battery life of the second communication device can be further extended. Note that the battery of each communication device may be either a primary battery that requires replacement or a rechargeable secondary battery. The power source of the second communication device may be a commercial power source, a USB power source, a car battery, or the like, depending on the installation environment of the second communication device.

  In this embodiment, a management server connected to a personal computer via a communication network is used as the management device. However, the management device may be a personal computer. Further, the personal computer as the client may be another information terminal device.

  In this embodiment, the electric field transmission unit of the first communication device functions as electric field transmission means for inducing an electric field in a user as an electric field transmission medium, and the electric field reception unit of the second communication device is attached to a seat in the management area. It functions as an electric field receiving unit that detects the electric field induced by the user who is present and receives the first communication device ID information, but replaces the electric field transmission unit as the electric field transmission unit of the first communication device. An electric field transmission / reception unit (electric field transceiver) having a transmission / reception function is provided, and an electric field transmission / reception unit (electric field transceiver) having the same transmission / reception function as the first communication device is used instead of the electric field reception unit as an electric field transmission unit of the second communication device. You may prepare. The electric field transmission / reception unit performs the same operation as the above-described electric field transmission unit at the time of transmission, and performs the same operation as the above-described electric field reception unit at the time of reception.

  In this embodiment, a transmission signal is applied to the human body from the transmission side electrode via capacitive coupling. However, this is because the transmission side electrode is directly brought into contact with the human body and the transmission signal is applied from the transmission side electrode to the human body. May be.

  As mentioned above, although this embodiment demonstrated one Embodiment of this invention, this invention is not limited to this Embodiment, A various deformation | transformation implementation can be implemented within the range which does not deviate from the summary of this invention.

1 management area 5 personal computer 6 wireless LAN (communication network)
7 Wireless LAN (communication network)
100 presence management system using human body communication 200 first communication device 210 first communication device ID information storage unit (first communication device ID information storage means)
220 Electric field transmitter (electric field transmitter)
230 1st communication apparatus ID information transmission part (1st communication apparatus ID information transmission means)
300 Second communication device 310 Electric field receiving unit (electric field receiving means)
320 Second communication device ID information storage unit (second communication device ID information storage)
340 Attendance information transmission part (Absence information transmission means)
350 Attendance information generator (Absence information generator)
400 management device 410 presence / absence information receiving unit
420 Registration Information Storage Unit (Registration Information Storage Unit)
430 Absence seat history information generation unit (attended seat history information generation means)
440 Absence seat history information storage unit (Absence seat history information storage means)
450 Service request reception unit (service request reception means)
460 Service providing unit (service providing means)
S seat U user

Claims (2)

The first and second communication devices that perform communication using an electric field induced in a human body, and a management device in which the second communication device is connected by a wired or wireless communication network,
The first communication device is carried by a user,
First communication device ID information storage means for storing in advance first communication device ID information unique to the first communication device;
Electric field transmission means for inducing an electric field in a user as an electric field transmission medium;
A first communication device ID information transmission unit that reads the first communication device ID information from the first communication device ID information storage unit and causes the electric field transmission unit to transmit the first communication device ID information; ,
The second communication device is
Electric field receiving means for detecting an electric field induced by a user who is seated in a seat in the management area and receiving the first communication device ID information;
Second communication device ID information storage means for storing in advance second communication device ID information unique to the second communication device;
When the electric field receiving means receives the first communication device ID information at the communication timing of the human body communication between the first and second communication devices, the second communication device includes the second communication device ID information. When the presence information including the communication device ID information and the time information at that time is generated, and the electric field receiving means does not receive the first communication device ID information, the current time is added to the second communication device ID information. Attendance information generating means for generating absence information to which information is added,
The presence / absence information transmission means for transmitting the presence / absence information generated by the presence / absence information generation means to the communication network,
The management device
The presence / absence information receiving means for receiving the presence / absence information on the communication network;
Registration information indicating the correspondence between user-specific user ID information and the first communication device ID information, and registration information indicating the correspondence between the seating location information and the second communication device ID information. Registration information storage means for storing in advance;
Based on each of the registration information stored in advance in the registration information storage means, the first communication device ID information included in the presence / absence information is the user ID information and the second communication device ID. The seat location information generating means for generating the seat location information associated with the seat location information, respectively,
A presence management system comprising: a presence / absence history information storage unit that stores the presence / absence history information generated by the presence / absence history information generation unit. The management device
A service request accepting means for accepting a service related to presence information from an information terminal;
The service providing means for reading the presence / absence history information from the presence / absence history information storage means in response to the service request accepted by the service request acceptance means and providing the information terminal requesting the service to the information terminal. The attendance management system according to 1.

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