JP2010165314A - Entrance/exit management system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an entrance/exit management system capable of immediately establishing communication between an identification device and a reception device even when a remaining capacity of an electricity storage means is short. <P>SOLUTION: The identification device 1 includes a main power supply section 4 provided with a photovoltaic cell 5 and an electricity storage means 6 besides an auxiliary power supply section 7 contactlessly receiving electric power supplied from the reception device, and can supply drive power from both the main power supply section 4 and the auxiliary power supply section 7 to a communication function section 3. The communication function section 3 can transmit identification information to the reception device only in a state where the identification device exists in a communicable area set around a reader device. The auxiliary power supply section 7 receives power supplied from the reception device only in a state where the identification device 1 exists in an area capable of supplying electric power and narrower than the communicable area set around the reception device. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  According to the present invention, when identification information is transmitted from the identification device to the receiving device, the receiving device authenticates the identification information and determines whether to permit entry into or exit from the target area according to the authentication result. This relates to the exit management system.

  2. Description of the Related Art In recent years, entrance / exit management systems using a receiving device disposed at an entrance of a target area such as an office in a building or the like and a thin identification device that can be carried by a user have become widespread. In this entrance / exit management system, identification information is transmitted from the identification device to the receiving device by wireless communication, and the receiving device authenticates the identification information, and whether to permit entry / exit into the target area according to the authentication result. By determining whether or not, the door unlocking operation or the opening / closing operation of the automatic door, automatic ticket gate, etc. is controlled.

  This type of entrance / exit management system generally employs a passive RF tag (passive tag) system in which an identification device has a function of transmitting using the power of a carrier wave transmitted from a receiving device. Therefore, the communicable distance is relatively short, and an act of holding the identification device over the receiving apparatus is required.

  On the other hand, the identification device itself has a battery as a power source, and it is convenient to adopt an active RF tag (active tag) system in which the identification device has a function of transmitting data upon receiving power supply from the battery. It has also been proposed to improve performance. That is, in the identification device provided with its own power supply, the communication distance with the receiving apparatus can be increased (for example, 10 m) as compared with the passive RF tag method. This eliminates the need to hold the identification device over the receiving apparatus, and communication between the receiving apparatus and the identification device is enabled only by a user who has (identifies) the identification device approaching the receiving apparatus.

  By the way, when a primary battery is provided in the identification device, there is a disadvantage that regular maintenance such as battery replacement is required. Therefore, in this type of identification device, a solar cell that converts light energy into electric energy is used as a power source. It is conceivable to use (see, for example, Patent Document 1).

  It is also conceivable that the identification device includes a solar cell as a power source, and a display unit provided on the identification device is driven by electric power generated by the solar cell to display various information on the display unit (for example, a patent). References 2 and 3).

  However, in the case of using a solar cell, if power can be supplied from the solar cell only when light is incident on the solar cell, for example, in an environment where the incident light intensity to the solar cell decreases at night or the like. Communication between the identification device and the receiving device may not be established. Therefore, it is preferable to use a power storage means such as a secondary battery or a capacitor together with the solar battery so that stable power supply is continuously performed even in an environment where the incident light intensity with respect to the solar battery is reduced. That is, according to this configuration, communication between the identification device and the receiving device can be performed by utilizing the electric power stored in the power storage unit even when light is not incident on the solar cell.

  By the way, even if it is an identification device which used a solar cell and an electrical storage means together as mentioned above, when the identification device is used indoors dimly, sufficient light is incident on the solar cell for a long time. When the identification device is used in a state where it is not, the remaining amount of the power storage means gradually decreases. If the remaining amount of the power storage means is insufficient, communication between the identification device and the receiving device may not be established, and the entrance / exit management system may not function normally (the user cannot enter / exit). In this case, if the power storage means is charged by exposing the solar cell to light for a certain period of time, it is possible to prevent communication between the identification device and the receiving device from being established due to a shortage of the remaining power in the power storage means.

JP 2004-24551 A JP 2002-32728 A JP-A-10-240873

  However, once the remaining capacity of the power storage means is insufficient, communication between the identification device and the receiving device cannot be recovered unless light is applied to the solar cell and the power storage means is not charged until it is charged to some extent. There is a problem that recovery takes time. Therefore, the user cannot enter / exit immediately, and the convenience of the entrance / exit management system is not good. Especially in an environment where the surroundings are dark at night and the solar cell does not have enough light to generate power, the power storage means cannot be charged immediately, and communication between the identification device and the receiver is not possible. It may take a relatively long time to recover.

  The present invention has been made in view of the above-described reasons, and an object thereof is to provide an entrance / exit management system capable of immediately communicating between an identification device and a receiving device even when the remaining amount of power storage means is insufficient. And

  The invention of claim 1 comprises a receiving device arranged at the entrance and exit of the target area, and an identification device possessed by the user and capable of wireless communication with the receiving device, and when identification information is transmitted from the identification device to the receiving device, An entry / exit management system in which a receiving apparatus authenticates identification information and determines whether to permit entry / exit into the target area according to the authentication result, and the identification device carries the identification information as electrical information An information holding unit, a communication function unit that transmits identification information to the receiving device by performing wireless communication with the receiving device, a solar cell that generates power by receiving light, and a power storage that stores the power generated by the solar cell Main power supply section that includes means for supplying drive power to the communication function section, and at least when the drive power of the communication function section is insufficient due to a decrease in the remaining capacity of the power storage means, power is supplied from the receiving device in a contactless manner. Receiving and having an auxiliary power unit for generating a driving power of the communication function unit.

  According to this configuration, the identification device has the main power supply unit and the auxiliary power supply unit, and can supply drive power to the communication function unit from both the main power supply unit and the auxiliary power supply unit. Therefore, even if the communication function unit cannot be driven with the drive power from the main power supply unit due to the shortage of the power storage means included in the main power supply unit, the identification can be made by driving the communication function unit with the drive power from the auxiliary power supply unit. The identification information can be transmitted to the receiving apparatus by performing communication between the device and the receiving apparatus. Here, since the auxiliary power supply unit receives the power supply from the receiving device in a non-contact manner and generates the driving power for the communication function unit, if the identification device receives the power supply from the receiving device, the brightness of the surroundings is increased. Regardless, the drive power of the communication function unit can be generated immediately. Therefore, even if the remaining amount of the power storage means is insufficient, it is possible to immediately perform communication between the identification device and the receiving device.

  According to a second aspect of the present invention, in the first aspect of the invention, when the identification device is in a communicable area within a predetermined distance from the receiving device, the receiving device can wirelessly communicate with the receiving device, and the auxiliary power supply unit When the identification device is in a power supplyable area narrower than the communicable area from the receiving device, the receiving device is supplied with electric power in a non-contact manner.

  According to this configuration, when there is a sufficient remaining amount of power storage means in the main power supply unit, driving power is supplied from the main power supply unit to the communication function unit, so that the identification device is not in the power supplyable area. If it is within the communicable area, the identification information can be transmitted to the receiving device. On the other hand, when the remaining amount of the power storage means is insufficient, if the identification device is within the power supplyable area, the drive power is supplied from the auxiliary power supply unit to the communication function unit, so that the identification information is sent to the receiving device. Can be sent. That is, when communication between the identification device and the receiving device is not established due to a shortage of remaining power in the power storage means, the identification device and the receiving device are brought closer to the power supply area that is narrower than the communicable area. Communication with the receiving apparatus can be established.

  According to a third aspect of the present invention, in the first aspect of the invention, the receiving device intermittently performs wireless communication with the communication function unit and power supply to the auxiliary power unit, and The time interval for performing wireless communication is set shorter than the time interval for supplying power to the auxiliary power supply unit.

  According to this configuration, when the remaining amount of the power storage unit in the main power supply unit is sufficient, the identification information can be transmitted to the receiving device by supplying drive power from the main power supply unit to the communication function unit. it can. On the other hand, when the remaining amount of the power storage means is insufficient, the drive power is supplied from the auxiliary power supply unit to the communication function unit at the timing when the power is supplied from the receiving device to the auxiliary power supply unit. It can be transmitted to the receiving device.

  According to a fourth aspect of the present invention, in any one of the first to third aspects of the present invention, the auxiliary power supply unit is supplied with electric power from the receiving device in a non-contact manner by electromagnetic induction.

  According to this configuration, since electromagnetic induction is used to supply power from the receiving device to the auxiliary power supply unit, there is an advantage that power can be efficiently supplied to the auxiliary power supply unit.

  According to the present invention, driving power can be supplied from both the main power supply unit and the auxiliary power supply unit to the communication function unit. Even if the communication function unit cannot be driven, communication can be performed between the identification device and the receiving device if the auxiliary power supply unit receives the power supply from the receiving device in a contactless manner and drives the communication function unit. Therefore, even if the remaining amount of the power storage means is insufficient, there is an advantage that it is possible to immediately perform communication between the identification device and the receiving device.

It is a schematic block diagram which shows the identification device of Embodiment 1 of this invention. It is the schematic which shows the example of application of the entrance / exit management system same as the above. It is a schematic block diagram which shows an entrance / exit management system same as the above.

(Embodiment 1)
The entrance / exit management system of this embodiment is used for entrance / exit management of a room R as a target space as shown in FIG. 2 and is installed on a wall near the door D of the entrance / exit of the room R. The apparatus 100 and the thin (here, card type) identification device 1 that is carried by the user H and wirelessly communicates with the receiving apparatus 100 are provided as constituent elements. Here, it is assumed that the receiving apparatus 100 operates by receiving power supply from a commercial power source.

  In this entrance / exit management system, each individual who owns the identification device 1 is authenticated by performing wireless communication using an electromagnetic wave as a medium between the identification device 1 and the receiving device 100. Depending on the situation, it is decided whether or not to allow entry into and exit from the room.

  That is, the identification device 1 is equipped with an information holding unit 2 (see FIG. 1) in which identification information (ID) for identifying each individual (owner of the identification device 1) is stored as electrical information. The identification information is transmitted to the receiving apparatus 100 during communication with the receiving apparatus 100. The receiving apparatus 100 compares the received identification information with pre-registered data (regular identification information), unlocks the door D if the authentication is successful, and locks the door D if the authentication fails. To control the unlocking operation of the door D. For this reason, if the above entrance / exit management system is used, the user H can manage the entrance / exit of the user H only by holding the identification device 1.

  As shown in FIG. 1, the identification device 1 includes an information holding unit 2 including a memory that stores identification information, a communication function unit 3 that performs wireless communication with the receiving device 100, and power for the communication function unit 3. The main power supply unit 4 and the auxiliary power supply unit 7 for supplying power are provided. The identification device 1 has a function of transmitting at least identification information stored in the information holding unit 2 to the receiving device 100 via the communication function unit 3. The information holding unit 2 is not limited to the memory, and may carry identification information represented by, for example, the open / closed state of the contacts of the dip switch.

  The main power supply unit 4 supplies power necessary for communication with the receiving device 100, and includes a solar cell 5 that is a photoelectric conversion element that converts light energy irradiated from the outside into electric energy. Therefore, by ensuring an environment in which a sufficient amount of light is applied to the solar cell 5, stable power supply can be realized over a long period of time without performing maintenance such as battery replacement or charging. . Here, it is assumed that the identification device 1 is carried by the user H in a form that can be easily seen by surrounding people, such as a name tag, so that the solar cell 5 can be irradiated with light in a normal usage form of the identification device 1. .

  Further, in the main power supply unit 4, the storage unit 6 such as a secondary battery or a capacitor is used together with the solar cell 5, so that the communication function unit 3 can be used even in an environment where the solar cell 5 is not irradiated with light. On the other hand, it is configured to continuously supply stable power. According to this configuration, even if no light is incident on the solar cell 5, communication between the identification device 1 and the receiving device 100 can be performed by using the electric power stored in the power storage unit 6. Therefore, the power storage means 6 is charged with the output of the solar battery 5 during the day when the power generation efficiency of the solar battery 5 is high, and the power stored in the power storage means 6 is used at night when the power generation efficiency of the solar battery 5 is reduced. The output of the solar cell 5 can be used effectively.

  Here, the identification device 1 of the present embodiment enables generation of sufficient power by the solar cell 5 not only outdoors where sunlight is irradiated but also indoors (indoors) where the illuminance is lower than that of sunlight. As the solar cell 5, a solar cell 5 having a sensitizing substance and an electron transporting part and a hole transporting part for transporting electric charge is used. A substance with a sensitizing action has the function of distributing electrons (negative charge) and holes (positive charge) to different substances by absorbing light, which is the cause of the development of the photoelectric conversion effect. Become. Here, a material part that receives electrons from a substance having a sensitizing action is an electron transport part, and a material part that receives holes from a substance having a sensitizing action is a hole transport part.

  Examples of the solar cell 5 having a substance having a sensitizing action and a charge transporting portion (electron transporting portion and hole transporting portion) include a dye-sensitized solar cell, a quantum dot-sensitized solar cell, and a dye-sensitized organic solar cell. In this embodiment, a dye-sensitized solar cell is adopted as the solar cell 5. The dye-sensitized solar cell 5 can be configured so as to have transparency as a whole by forming the substrate from a transparent material. Further, if the substrate is formed of a flexible resin film or the like, the whole can be obtained. It is possible to adopt a configuration having flexibility.

  By the way, even if it is the identification device 1 which used the solar cell 5 and the electrical storage means 6 together like this embodiment, when the identification device 1 is used indoors dimly, a solar cell over a long time. When the identification device 1 is used in a state where sufficient light does not enter 5, the remaining amount of the power storage means 6 gradually decreases. If the remaining amount of the power storage unit 6 is insufficient, sufficient power is not supplied to the communication function unit 3 in a state where the solar cell 5 is not irradiated with light, and thus communication between the identification device 1 and the receiving device 100 is not established. The entrance / exit management system may not function normally (the user H cannot enter or leave the room).

  Therefore, in the present embodiment, the identification device 1 is provided with the auxiliary power supply unit 7 so that the driving power can be supplied from both the main power supply unit 4 and the auxiliary power supply unit 7 to the communication function unit 3. It is possible to avoid that communication between the identification device 1 and the receiving apparatus 100 is not established due to the shortage of the remaining amount of 6. That is, the communication function unit 3 operates by receiving power supply from the main power supply unit 4 including the power storage unit 6 in a steady state where the power storage unit 6 has a sufficient remaining amount, but the remaining amount of the power storage unit 6 decreases. When the remaining amount is below the threshold, the power supply is supplied from the auxiliary power supply unit 7 to operate.

  Here, the auxiliary power supply unit 7 receives power supply from the receiving device 100 in a non-contact manner and generates drive power for the communication function unit 3. More specifically, the auxiliary power supply unit 7 is magnetically coupled to the non-contact power feeding unit 109 (see FIG. 3) provided in the receiving device 100, and the non-contact power feeding unit 109 performs power contactlessly by electromagnetic induction. Receive supply. The magnetic coupling between the auxiliary power supply unit 7 and the non-contact power supply unit 109 is a power-feedable area 8 in which the identification device 1 is set in a relatively narrow range of a predetermined distance (for example, about several centimeters) from the receiving device 100 (see FIG. 2) It is done in a state that is inside. Therefore, the auxiliary power supply unit 7 can receive power supply from the receiving device 100 only in a state where the identification device 1 exists in the power supplyable area 8 set around the receiving device 100. Here, the power supply from the non-contact power supply unit 109 to the auxiliary power supply unit 7 is automatically started when the identification device 1 enters the power supplyable area 8.

  On the other hand, the communication function unit 3 is connected to the receiving device 100 in a state where the identification device 1 is in the communicable area 9 (see FIG. 2) set within a predetermined distance (for example, about several meters) from the receiving device 100. Identification information can be transmitted. In other words, communication between the identification device 1 and the receiving device 100 is possible only within a range where a signal transmitted / received between the two devices can reach, but the range where the signal reaches can be transmitted when the signal is transmitted. It is limited by the magnitude of power. Therefore, the signal can be transmitted from the identification device 1 to the receiving apparatus 100 only when the identification device 1 exists in the communicable area 9 set around the receiving apparatus 100.

  Here, in the present embodiment, an active RF tag (active tag) in which the communication function unit 3 receives the power supply from the main power supply unit 4 and transmits identification information in a steady state in which the remaining amount of the power storage unit 6 is sufficient. ) Method is adopted, the communicable area 9 is set relatively wide. The power feedable area 8 is set narrower than the communicable area 9.

  Therefore, if the power storage unit 6 of the main power supply unit 4 has a sufficient remaining capacity to drive the communication function unit 3, if the identification device 1 is within the communicable area 9 set around the receiving device 100, The communication function unit 3 can receive identification information from the main power supply unit 4 and transmit the identification information to the receiving device 100. At this time, since the power supply from the auxiliary power supply unit 7 is unnecessary, the identification device 1 does not need to be in the power supplyable area 8 set in the communicable area 9. Therefore, the user H who has the identification device 1 does not need to hold the identification device 1 over the receiving apparatus 100, and the identification information is authenticated just by approaching the receiving apparatus 100, and entry / exit becomes possible.

  On the other hand, when the communication function unit 3 cannot be operated by power supply from the main power supply unit 4 due to a shortage of the power storage means 6 of the main power supply unit 4, the identification information is received from the communication function unit 3. Power transmission from the auxiliary power supply unit 7 is necessary. Therefore, it is necessary that the identification device 1 is not only in the communicable area 9 but also in the power feedable area 8 set in the communicable area 9. Therefore, in the user H who owns the identification device 1, the identification information is authenticated by placing the identification device 1 in the power supplyable area 8 by holding the identification device 1 over the receiving apparatus 100, etc. It becomes possible.

  According to the configuration described above, even if the remaining capacity of the power storage means 6 of the main power supply unit 4 is insufficient and power supply from the main power supply unit 4 makes the communication function unit 3 inoperable, the auxiliary power supply unit 7 communicates. By supplying power to the functional unit 3, it is possible to communicate between the identification device 1 and the receiving apparatus 100 and transmit identification information to the receiving apparatus 100. In addition, since the auxiliary power supply unit 7 receives power supply from the receiving device 100 in a non-contact manner, communication with the receiving device 100 becomes possible as in the case where the power storage means 6 is charged by applying light to the solar cell 5. It does not take time. Therefore, communication between the identification device 1 and the receiving device 100 does not stop even if the remaining amount of the power storage means 6 is insufficient, and communication between the identification device 1 and the receiving device 100 is immediately secured. It is possible.

  In short, in a steady state in which the remaining amount of the power storage means 6 is sufficient, the communication function unit 3 receives the power supply from the main power supply unit 4 and transmits identification information by an active RF tag (active tag) method. On the other hand, when the remaining capacity of the power storage means 6 is insufficient, the communication function unit 3 uses the power supplied from the receiving device 100 to the auxiliary power supply unit 7 to obtain identification information by a passive RF tag (passive tag) method. Send. As a result, the identification information is transmitted to the receiving device 100 only when the user H approaches the receiving device 100 in a steady state, and the user H receives the identifying device 1 even when the remaining amount of the power storage unit 6 is insufficient. The identification information is transmitted to the receiving apparatus 100 by being held over 100.

  Hereinafter, a specific example of the entrance / exit management system of the above embodiment will be described with reference to FIG.

  The receiving device 100 installed at the entrance of the room R includes an LF band transmitting unit 101 and an LF antenna 102 for communicating with the identification device 1 in the first communication method of the LF band (long wave band: 30 to 300 kHz), Controls the RF transceiver 103 and the RF antenna 104, and the LF band transmitter 101 and the RF transceiver 103 for communicating with the identification device 1 in the second communication method of the UHF band (ultra-high frequency band: 300 MHz to 3 GHz). The reception function unit 110 includes a control unit 105, and includes a display unit 106 and a buzzer 107 that are connected to the control unit 105, such as a liquid crystal display. Furthermore, the receiving device 100 includes a storage unit 108 that stores identification data authentication data (regular identification information), and a non-contact power supply unit 109 that supplies power to the auxiliary power supply unit 7.

  The identification device 1 possessed by the user communicates with the receiving device 100 by the LF band receiving unit 31 and the LF antenna 32 for communicating with the receiving device 100 by the first communication method, and by the second communication method. For this purpose, the communication function unit 3 includes an RF transmission / reception unit 33 and an RF antenna 34, and a control unit 35 that controls the LF band reception unit 31 and the RF transmission / reception unit 33. Here, the LF antenna 32 is formed of, for example, a loop antenna formed on a substrate (not shown) of the communication function unit 3, and the RF antenna 33 is formed of a patch antenna formed on the substrate.

  Next, an operation example of the above-described entrance / exit management system will be shown.

  The receiving apparatus 100 amplifies the activation signal generated by the control unit 105 in the LF band transmission unit 101 and intermittently transmits the signal from the LF antenna 102 with a first communication method (LF) at a constant period. As a result, a communicable area 9 is formed around the receiving apparatus 100 (near the entrance / exit of the room R) within a range where the activation signal reaches.

  When the user H having the identification device 1 enters the communicable area 9, the identification device 1 receives the activation signal from the receiving device 100 by the LF antenna 32, and then the LF band reception unit 31 controls the control unit 35. The control unit 35 generates a response signal (identification signal) including the identification information in the information holding unit 2, and responds with the second communication method (UHF) from the RF transmission / reception unit 33 via the RF antenna 34. A signal is returned to the receiving apparatus 100. Here, the identification device 1 supplies power from the main power supply unit 4 only to the LF band receiving unit 31 in the communication function unit 3 until receiving the activation signal, and each unit other than the LF band receiving unit 31 (RF transmitting / receiving unit) 33, operating in a low power consumption mode in which power is not supplied to the control unit 35), and operating in a normal mode in which power is supplied to each unit other than the LF band receiving unit 31 for the first time by receiving an activation signal. To do.

  At this time, if the power storage means 6 of the main power supply unit 4 has a sufficient remaining amount, power is supplied to the communication function unit 3 from the main power supply unit 4, but the remaining amount of the main power supply unit 4 is below the threshold value. Then, power supply to the communication function unit 3 is performed from the auxiliary power supply unit 7. When power is supplied from the auxiliary power supply unit 7, the user H having the identification device 1 needs to bring the identification device 1 close to the receiving apparatus 100 up to the power supplyable area 8 in the communicable area 9.

  The receiving apparatus 100 receives the response signal via the RF antenna 104 by the RF transmission / reception unit 103 and collates the identification information included in the response signal with the data in the storage unit 108. When it is determined that the identification information is legitimate identification information and the authentication is normally completed, the control unit 105 of the receiving apparatus 100 transmits a confirmation signal (ACK signal) including the authenticated identification information to the RF signal. The data is transmitted from the transmission / reception unit 103 to the identification device 1 via the RF antenna 104. In addition, the control unit 105 of the receiving apparatus 100 notifies the display unit 106 and the buzzer 107 when the authentication of the identification information is normally completed, and performs control for unlocking the door D at the entrance / exit of the room R. On the other hand, if the authentication of the identification information fails, a warning is given by the display unit 106 and the buzzer 107, and control for maintaining the door D at the entrance of the room R is locked. The other device connected to the receiving device 100 has a part of the function of the receiving device 100 so that the response signal is transferred from the receiving device 100 to the other device, and collation of identification information is performed by the other device. It is good also as a structure to perform.

  When the identification signal is received by the RF transmitter / receiver 33, the identification device 1 ends the transmission of the response signal. Instead of transmitting the confirmation signal from the receiving apparatus 100, the identification information that has been authenticated may be included in the next activation signal. In this case, the identification device 1 receives the activation signal including its own identification information in the LF band. The reception of the response signal is terminated by receiving the signal at the unit 31.

  As described above, the identification device 1 is activated by the activation signal of the LF band, and the response signal of the UHF band is returned, so that the communicable area 9 can be accurately defined within a range of 1.5 to 2 m, for example. . Here, the transmission power of the response signal transmitted from the RF transmitting / receiving unit 33 of the identification device 1 via the RF antenna 34 decreases as the remaining amount of the power storage unit 6 decreases, and the response signal is transmitted from the identification device 1. The reachable range may change depending on the remaining amount of the power storage means 6. However, in the present embodiment, the communicable area 9 is formed within the range in which the activation signal from the receiving device 100 reaches, so the communicable area 9 does not change with a change in the remaining amount of the power storage means 6.

  The RF transmitter / receiver 33 that performs UHF band wireless communication consumes as much as 10 to 20 mA, whereas the LF band receiver 31 that performs LF band wireless communication has a weakness of about several μA. Since the power is activated, the standby power of the identification device 1 can be kept low by adopting a low power consumption mode in which power is not supplied to the RF transmitter / receiver 33 in the standby state.

  In the above-described example, the configuration is shown in which the receiving device 100 controls the unlocking operation of the door D according to the authentication result of the identification information. However, the present invention is not limited to this example, and the receiving device 100 is an automatic door, an automatic ticket gate, or the like. It is good also as a structure which controls opening / closing operation | movement of this. The wireless communication basically means communication using an electromagnetic wave as a medium, but the identification device 1 may perform communication (wireless communication) with the receiving apparatus 100 using electromagnetic induction.

(Embodiment 2)
In the entrance / exit management system of this embodiment, the receiving device 100 intermittently performs wireless communication (transmission of activation signal) with the identification device 1 and non-contact power supply to the identification device 1 respectively. This is different from the entrance / exit management system.

  In the present embodiment, the time interval at which the receiving device 100 performs wireless communication with the communication function unit 3 of the identification device 1 is shorter than the time interval at which the receiving device 1 performs non-contact power feeding to the auxiliary power supply unit 7 of the identification device 1. Is set. As an example, the wireless communication is performed at intervals of 1 second, and the power supply to the auxiliary power supply unit 7 is performed at intervals of 5 seconds. Furthermore, here, the power feedable area 8 is set relatively wide so as to be substantially the same range as the communicable area 9.

  With this configuration, the communication function unit 3 basically operates by supplying power from the main power supply unit 4, and operates by supplying power from the auxiliary power supply unit 7 when the remaining amount of the power storage unit 6 is insufficient. . That is, when the user H enters the communicable area 9, the communication function unit 3 preferentially uses the power of the main power supply unit 4, but even if the remaining amount of the power storage unit 6 is insufficient, At the timing of contact power supply, the communication function unit 3 operates by supplying power from the auxiliary power supply unit 7. Therefore, in the user H who has the identification device 1, when the remaining amount of the power storage means 6 is insufficient, there is a slight waiting time until the next contactless power supply timing (5 seconds at the maximum when contactless power supply is performed every 5 seconds). ) May occur, however, it is not necessary to hold the identification device 1 over the receiving apparatus 100, and the identification information is authenticated just by approaching the receiving apparatus 100, allowing entry / exit.

  Other configurations and functions are the same as those in the first embodiment.

(Embodiment 3)
The entrance / exit management system of the present embodiment is configured such that the auxiliary power supply unit 7 is configured to supply power to the communication function unit 3 using the power of the carrier wave transmitted from the receiving device 100. It differs from the entrance / exit management system. Here, it is assumed that power is supplied to the auxiliary power supply unit 7 in a non-contact manner using the power of the carrier wave of the activation signal periodically transmitted from the receiving device 100.

  With this configuration, power is supplied to the auxiliary power supply unit 7 as long as the activation signal reaches from the reception device 100 without magnetically coupling the reception device 100 and the auxiliary power supply unit 7 as in the case of using electromagnetic induction. Can do. Accordingly, the range where the activation range reaches from the receiving device 100 becomes the power supplyable area 8, and the auxiliary power supply unit 7 receives power supply from the receiving device 100 in a state where the identification device 1 exists in the power supplyable area 8. be able to. Here, since the communicable area 9 is formed within the range where the activation signal from the receiving device 100 reaches, the power supplyable area 8 and the communicable area 9 coincide with each other.

  In this embodiment, when the identification device 1 enters the communicable area 9 and receives the activation signal from the receiving device 100, first, the communication function unit 3 is driven by the power supply from the main power supply unit 4 to generate the response signal. Try sending. At this time, if the communication function unit 3 does not operate due to a shortage of the remaining capacity of the power storage unit 6, the response function signal is transmitted by driving the communication function unit 3 by supplying power from the auxiliary power supply unit 7. That is, the identification device 1 is configured to give priority to the power supply from the main power supply unit 4 and to supply the power from the auxiliary power supply unit 7 only when the remaining amount of the power storage unit 6 falls below the threshold value.

  In the entrance / exit management system configured as described above, when the identification device 1 enters the communicable area 9, the communication function unit 3 sends the identification information to the receiving device 100 by supplying power from the main power supply unit 4 or the auxiliary power supply unit 7. Since the transmission is performed, communication between the identification device 1 and the receiving device 100 does not stop even if the remaining amount of the power storage unit 6 is insufficient. Here, since the power supplyable area 8 and the communicable area 9 coincide with each other, even when the remaining amount of the power storage unit 6 is insufficient, the user H However, it is not necessary to hold the identification device 1 over the receiving apparatus 100, and there is an advantage that identification information can be transmitted to the receiving apparatus 100 simply by approaching the receiving apparatus 100.

  Other configurations and functions are the same as those of the first embodiment.

  By the way, if the entrance / exit management system having the above-described configuration is used, for example, a receiving device 100 is installed at the entrance to a management area where an unspecified number of visitors are present, and is identified for legitimate (with appointment) visitors. By passing the device 1 in advance, it becomes possible to identify a legitimate visitor regardless of whether or not he / she is acquainted and permit entry into the management area. Furthermore, in situations where collective action is required in a childcare facility, a nursing facility, etc., it is also possible to use each device for confirming the presence of each individual instead of making a call by carrying the identification device 1 with each individual. .

DESCRIPTION OF SYMBOLS 1 Identification device 2 Information holding part 3 Communication function part 4 Main power supply part 5 Solar cell 6 Power storage means 7 Auxiliary power supply part 8 Power supply possible area 9 Communication possible area 100 Receiver H User

Claims (4)

  A receiving device disposed at the entrance / exit of the target area and an identification device possessed by the user and capable of wireless communication with the receiving device. When the identification information is transmitted from the identification device to the receiving device, the receiving device authenticates the identification information. And an entry / exit management system that determines whether to permit entry / exit in the target area according to the authentication result, wherein the identification device includes an information holding unit that carries identification information as electrical information, and a reception The communication function unit includes a communication function unit that transmits identification information to the reception device by performing wireless communication with the device, a solar cell that generates power by receiving light, and a power storage unit that stores the power generated by the solar cell. A main power supply unit that supplies driving power and a communication function unit that receives power from the receiving device in a non-contact manner when at least the driving power of the communication function unit is insufficient due to a decrease in the remaining amount of power storage means. Entrance and exit management system characterized by having an auxiliary power unit that generates driving power.   The identification device is wirelessly communicable with the receiving apparatus when the identification device is within a communicable area of a predetermined distance or less from the receiving apparatus, and the auxiliary power supply unit feeds the identification device from the receiving apparatus to be narrower than the communicable area The entrance / exit management system according to claim 1, wherein power is supplied in a non-contact manner from the receiving device when in a possible area.   The receiving device intermittently performs wireless communication with the communication function unit and power supply to the auxiliary power unit, and a time interval for performing wireless communication with the communication function unit supplies power to the auxiliary power unit. 2. The entrance / exit management system according to claim 1, wherein the entrance / exit management system is set to be shorter than a time interval for performing the operation. The entrance / exit management system according to any one of claims 1 to 3, wherein the auxiliary power supply unit is supplied with electric power from the receiving device in a non-contact manner by electromagnetic induction.

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