JP2014063250A - Access management system and access management device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that while a passage-permitted person passes through a doorway, an alarm is not issued even after the passage of a passage-unpermitted person carrying no transmission tag, and that when the passage-unpermitted person passes following the passage-permitted person without being noticed, the alarm is not issued due to failure in the discrimination of illegal passage in a conventional access monitoring system.SOLUTION: An access management device 1 receives person detection signals from person detection devices 3, 4, 5, 6 and 7 and tag detection signals from tag detection devices 10 and 11, and generates detection signal transition data including the transition information of the received person detection signals and tag detection signals, and compares the detection signal transition data with preliminarily stored detection signal transition data in normal passage to determine whether passage through a doorway is normal passage or illegal passage.

Description

  The present invention relates to an entry / exit management system and an entry / exit management device that issue an alarm when there is unauthorized traffic in a facility.

  In order to prevent unauthorized traffic in the facility, optical signals from outgoing tags carried by passers who are permitted to pass through the entrance and exit are optically detected. An entry / exit monitoring system is known (see, for example, Patent Document 1).

  In such an entrance / exit monitoring system, when a passerby's passage is optically detected and a radio wave from the outgoing tag is detected, it is determined that the passer is allowed to pass and no alarm is issued. On the other hand, if the passerby's passage is optically detected but the radio wave from the outgoing tag is not detected, it is determined that the passer is a non-passable person who does not carry the outgoing tag, and an alarm is issued.

JP 2009-139882 A

  However, in a conventional entrance / exit monitoring system, a non-permitted person who does not carry an outgoing tag while the permitted person passes through the entrance / exit, that is, while a radio wave from the outgoing tag carried by the permitted person is detected. No warning is issued even if there is traffic due to. Therefore, when a non-permitted person follows a person without being noticed by the permitted person, there has been a problem that unauthorized traffic cannot be determined and an alarm is not issued.

  The present invention has been made to solve the above-described problems, and it is an object of the present invention to provide an access management system and an access management device that can accurately determine unauthorized traffic by an unauthorized passer who does not carry an outgoing tag. And

  The access control system according to the present invention includes a tag detection device that transmits a tag detection signal when detecting a transmission tag carried by a passerby that passes through an entrance, and a person intrusion into a human detection area set near the entrance. A human detection device that transmits a human detection signal upon detection, and an access management device that is connected to the tag detection device and the human detection device and controls to issue an alarm when there is unauthorized traffic to the entrance / exit. The access management system includes: a receiving unit that receives the tag detection signal and the person detection signal; and a transition between the tag detection signal and the person detection signal received by the receiving unit. A detection signal transition data generation unit that generates detection signal transition data including the information of, and a storage unit that stores the detection signal transition data when normally passing through the entrance and exit, A determination unit that compares the detection signal transition data stored in the storage unit with the detection signal transition data generated by the detection signal transition data generation unit and determines whether or not the entrance / exit traffic is unauthorized traffic; And a control unit that controls to issue an alarm when the determination unit determines that the traffic is illegal.

  The entrance / exit management device according to the present invention detects a tag detection signal indicating that an outgoing tag carried by a passerby passing through an entrance / exit is detected, and a person intrusion into a person detection area set near the entrance / exit A reception unit that receives a human detection signal representing the detection, and detection signal transition data generation that generates detection signal transition data including information about the transition of the tag detection signal and the human detection signal received by the reception unit The detection signal transition data stored in the storage unit, the detection signal transition data stored in the storage unit, and the detection signal transition data generation unit A determination unit that compares detection signal transition data and determines whether or not the entrance / exit traffic is unauthorized traffic, and a control that issues an alarm when the determination unit determines that traffic is illegal Characterized in that it comprises a that controller.

  According to the entry / exit management system and the entry / exit management device of the present invention, normal passage or fraud is performed by comparing detection signal transition data including transition information of detection signals obtained by passage with detection signal transition data stored in advance. Since the traffic is discriminated, it is possible to improve the accuracy of discriminating illegal traffic.

1 is a diagram illustrating a configuration of an access management system according to Embodiment 1. FIG. The figure which shows a mode that the facility staff 50 passes the entrance / exit in Embodiment 1. FIG. The figure which shows a mode that the facility staff 50 and the non-facility staff 51 pass the entrance / exit in Embodiment 1. FIG. The figure which shows the person detection area and tag detection area which were provided in the doorway vicinity which concerns on Embodiment 1. FIG. 1 is a diagram illustrating a configuration of an access management apparatus 1 according to Embodiment 1. FIG. The figure which shows the transition information of the detection signal when the non-facility staff 52 passes the entrance / exit in Embodiment 1. FIG. The figure which shows the transition information of the detection signal at the time of the facility staff 50 passing an entrance / exit in Embodiment 1. FIG. The figure which shows the transition information of the detection signal at the time of the facility staff 50 supporting the non-facility staff 52 and passing the entrance / exit in Embodiment 1. FIG. The figure which shows the transition information of the detection signal at the time of the facility staff 50 pushing the wheelchair of the non-facility staff 51 and passing the entrance / exit in Embodiment 1. FIG. The figure which shows the transition information of the detection signal at the time of the non-facility staff 52 following the facility staff 50 and passing the entrance / exit in Embodiment 1. FIG. The figure which shows the transition information of the detection signal when the non-facility staff 52 pushes the wheelchair of the non-facility staff 51 in the first embodiment, and follows the facility staff 50 who passes. 3 is a flowchart showing an operation according to the first embodiment. The figure which shows the other example of the person detection area and tag detection area which were provided in the doorway vicinity which concerns on Embodiment 1. FIG. The figure which shows the other example of the person detection area and tag detection area which were provided in the doorway vicinity which concerns on Embodiment 1. FIG. The figure which shows the structure of the entrance / exit management system which concerns on Embodiment 2. FIG. FIG. 6 shows a Fresnel lens of the human detection device according to the second embodiment. The figure which shows a mode that the facility staff 50 passes an entrance / exit in Embodiment 2. FIG. The figure which shows a mode that the facility staff 50 and the non-facility staff 51 pass the entrance / exit in Embodiment 2. FIG. The figure which shows the person detection area and tag detection area which were provided in the doorway vicinity which concerns on Embodiment 2. FIG.

Embodiment 1 FIG.
Embodiment 1 of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing the configuration of the access control system according to the first embodiment. FIG. 2 is a diagram showing a state where the facility staff 50 passes through the entrance / exit in the first embodiment. FIG. 3 is a diagram illustrating a situation where the facility staff 50 and the non-facility staff 51 pass through the entrance / exit in the first embodiment. FIG. 4 is a diagram showing a human detection area and a tag detection area provided near the entrance / exit according to the first embodiment. FIG. 5 is a diagram showing a configuration of the access control apparatus 1 according to the first embodiment. FIG. 6 is a diagram showing transition information of detection signals when the non-facility staff 52 passes through the entrance / exit in the first embodiment. FIG. 7 is a diagram showing transition information of the detection signal when the facility staff 50 passes through the entrance / exit in the first embodiment. FIG. 8 is a diagram showing transition information of detection signals when the facility staff 50 supports the non-facility staff 52 and passes through the entrance / exit in the first embodiment. FIG. 9 is a diagram showing transition information of detection signals when the facility staff 50 pushes the wheelchair of the non-facility staff 51 and passes through the entrance / exit in the first embodiment. FIG. 10 is a diagram showing transition information of detection signals when the non-facility staff 52 follows the facility staff 50 and passes through the entrance / exit in the first embodiment. FIG. 11 is a diagram showing transition information of detection signals when the non-facility staff 52 pushes the wheelchair of the non-facility staff 51 and follows the facility staff 50 passing through the entrance / exit in the first embodiment. FIG. 12 is a flowchart showing the operation according to the first embodiment. FIG. 13 is a diagram showing another example of the human detection area and the tag detection area provided near the entrance / exit according to the first embodiment. FIG. 14 is a diagram showing another example of the human detection area and the tag detection area provided near the entrance / exit according to the first embodiment.

  As shown in FIG. 1, the access management system includes an access control server (in / out management device) 1, a plurality of human sensors (human detection devices) 3, 4, 5, 6, 7, and a plurality of RFIDs (Radio Frequency). Identification) transmission / reception antennas (tag detection devices) 10 and 11, which are connected via a network 15.

  First, the human detection devices 3, 4, 5, 6, and 7 and the tag detection devices 10 and 11 will be described.

  The human detection devices 3, 4, 5, 6, and 7 have built-in infrared sensors to detect the intrusion of a person into a predetermined human detection area, and when an intrusion is detected, a human detection signal indicating that fact is input / output management device 1 Send to. The person detection signal also includes identification information of the own device that is the transmission source. The range of the human detection area can be adjusted by limiting the arrival of infrared rays by providing a sensor with a physical structure that does not transmit infrared rays.

  In the arrangement example shown in FIG. 1 to FIG. 3, five human detection devices are arranged, and the human detection device 3 is arranged on the ceiling near the door of the entrance / exit in the facility, and near the door in the facility. A human intrusion into the human detection area 33 is detected. The human detection device 4 is disposed on the ceiling of the facility far away from the door, and detects the entry of a person into the human detection area 34 far away from the door in the facility. The human detection device 5 is disposed in the immediate vicinity of the door, and detects the intrusion of a person into the human detection area 35 in the vicinity of the door inside and outside the facility. The human detection device 6 is arranged on the ceiling near the door outside the facility, and detects the intrusion of a person into the human detection area 36 near the door outside the facility. The human detection device 7 is disposed on the ceiling of the door far outside the facility, and detects the intrusion of a person into the human detection area 37 far away from the facility. Note that the human detection areas 33, 34, 35, 36, and 37 all correspond to human detection areas set near the entrance / exit.

  As shown in FIG. 2, when a passage-permitted person who is a facility staff 50 carrying an RFID tag (outgoing tag) 2 passes from the inside of the facility to the outside of the facility, the human detection device 4, the human detection device 3, the human detection device 5, The human detection device 6 and the human detection device 7 sequentially detect the intrusion of the facility staff 50 into the human detection area, and each human detection device transmits a human detection signal to the access management device 1. The facility staff 50 corresponds to, for example, a doctor or nurse in a hospital, a caregiver in a care facility, or the like.

  As shown in FIG. 3, when the facility staff 50 is accompanied by a non-facility permitted person who is a non-facility staff 51 who does not carry the outgoing tag 2 and pushes the wheelchair to pass from the inside of the facility to the outside of the facility, the detecting device 4 and the human detecting device 3, the human detection device 5, the human detection device 6, and the human detection device 7 sequentially detect the intrusion of the non-facility staff 51 into the human detection area, and each human detection device transmits a human detection signal to the access control device 1. . In addition, the detection device 4, the human detection device 3, the human detection device 5, the human detection device 6, and the human detection device 7 detect the facility staff 50 following the detection of the non-facility staff 51, respectively. Send a detection signal. Therefore, when the traffic shown in FIG. 3 is performed, each person detection apparatus transmits a person detection signal to the access management apparatus 1 twice. The non-facility staff 51 corresponds to, for example, a patient in a hospital or a care recipient in a care facility.

  Returning to FIG. 1, the tag detection devices 10 and 11 transmit the RFID tag detection radio wave 12 including the ID information of the own device that is the transmission source. Further, the tag detection devices 10 and 11 receive an RFID tag response radio wave 13 that is a response from the transmission tag 2 that has received the RFID tag detection radio wave 12. When the tag detection devices 10 and 11 receive the RFID tag response radio wave 13, the tag detection devices 10 and 11 transmit a tag detection signal indicating that the outgoing tag is detected to the access control device 1. The tag detection signal also includes identification information of the own device that is the transmission source. The RFID tag response radio wave 13 includes ID information of the transmission tag 2 that is a transmission source.

  The tag detection device 10 is disposed inside the facility, and the tag detection device 11 is disposed outside the facility. The range of the tag detection area by the tag detection devices 10 and 11 can be adjusted by changing the intensity of the RFID tag detection radio wave 12.

  Using FIG. 4, human detection areas 33, 34, 35, 36, 37 detected by the human detection devices 3, 4, 5, 6, 7 and tag detection areas 20 detected by the tag detection devices 10, 11, 21 will be described. The range of the human detection areas 33, 34, 36, and 37 is about one person in the direction of passage at the entrance (longitudinal direction), and within the facility in the direction (lateral direction) perpendicular to the direction of passage of the entrance and exit. It is preferable that it is in a range that covers at least the door 9 so that passers-by from the outside of the facility or from the outside of the facility to the inside of the facility can be reliably detected. The human detection area 35 may be in a range that covers the vicinity of the door 9.

  The range of the tag detection area 20 of the tag detection device 10 is a range that covers from the far side of the door 9 to the vicinity of the door 9 in the facility, and the range of the tag detection area 21 of the tag detection device 11 is from the far side of the door 9 outside the facility. This is a range covering up to the vicinity of the door 9. The range of the tag detection area 20 may extend outside the facility, while the range of the tag detection area 21 may extend inside the facility.

  Next, the access control apparatus 1 will be described.

  The entrance / exit management device 1 determines whether the pass by the passer-by is normal or illegal based on the human detection signals from the human detection devices 3, 4, 5, 6, and 7 and the tag detection signals from the tag detection devices 10 and 11. Then, a control signal is transmitted to an external device (not shown in FIG. 1) so as to issue an alarm when it is determined that the traffic is illegal. In addition, when the entrance / exit management device 1 receives a human detection signal from the human detection device 5, the entrance / exit management device 1 controls the automatic opening / closing of the door 9, and manages passers-by passing through the entrance / exit and stores the passage history.

  As shown in FIG. 5, the access management apparatus 1 includes a reception unit 150, a detection signal transition data generation unit 151, a storage unit 152, a determination unit 153, and a notification control unit 154.

  The receiving unit 150 receives human detection signals from the human detection devices 3, 4, 5, 6, and 7 and tag detection signals from the tag detection devices 10 and 11. The receiving unit 150 outputs the received human detection signal and tag detection signal to the detection signal transition data generation unit 151.

  The detection signal transition data generation unit 151 generates data (detection signal transition data) including transition information of the human detection signal and the tag detection signal received by the reception unit 150. The detection signal transition information will be described in detail later. A plurality of detection signals (human detection) transmitted from each detection device (human detection device, tag detection device) when a passerby passes from inside the facility to outside the facility. Signal, tag detection signal) information about the transition of the reception pattern.

  The storage unit 152 stores in advance detection signal transition data when a passerby normally passes from inside the facility to outside the facility. Details of the transition of the detection signal during normal traffic will be described later.

  The determination unit 153 compares the detection signal transition data generated by the detection signal transition data generation unit 151 with the detection signal transition data during normal passage stored in the storage unit 152, and confirms whether the pass by the passer-by is normal. Determine whether the traffic is illegal. The determination unit 153 notifies the notification control unit 154 of the determination result.

  When the determination unit 153 determines unauthorized traffic, the notification control unit 154 transmits a notification instruction signal to an external device so as to issue an alarm, and performs control.

  The transition information of the detection signal will be described with reference to FIGS. In this example, the transition information of the detection signal is described as a table format, but the present invention is not limited to this.

  First, the transition information of the detection signal when the non-facility staff 52 who does not carry the outgoing tag 2 travels alone from the inside of the facility to the outside of the facility will be described with reference to FIG. Such traffic corresponds to unauthorized traffic. States (1) to (9) shown in FIG. 6 represent reception states of detection signals from the respective detection devices when the non-facility staff 52 is present at each position in FIG. The same applies to the subsequent FIGS.

  Since the detection signal is not transmitted from any of the detection devices before the non-facility staff 52 passes, the reception state of each detection signal is “x” (no reception) in the table of detection signal transition information. The reception state in this state is not displayed in the detection signal transition information table shown in FIG.

  When the non-facility staff 52 enters the tag detection area 20, since the non-facility staff 52 does not carry the outgoing tag 2, no detection signal is transmitted to the access control apparatus 1. Therefore, in the state (1), since no detection signal is transmitted from any of the detection devices, the reception state of the detection signal remains unchanged from the initial state and remains “x”.

  Next, when the non-facility staff 52 enters the human detection area 34, a human detection signal is transmitted from the human detection device 4 in the facility to the access control device 1. Therefore, in the state (2), the reception state of the human detection signal of the human detection device (inside the facility) transitions to “◯” (reception occurs), and the reception state of other detection signals does not change from the state (1).

  When the non-facility staff 52 exits from the human detection area 34, transmission of the human detection signal from the human detection device 4 in the facility to the access control device 1 is stopped. Therefore, in the state (3), the reception state of the human detection signal of the human detection device (in the facility) transitions to “x”, and the reception state of the other detection signals does not change from the state (2).

  When the non-facility staff 52 enters the human detection area 33, a human detection signal is transmitted from the human detection device 3 in the facility to the access control device 1. Therefore, in the state (4), the reception state of the human detection signal of the human detection device (in the facility) transitions to “◯”, and the reception state of other detection signals does not change from the state (3).

  When the non-facility staff 52 exits the human detection area 33 and enters the human detection area 35, no human detection signal is transmitted from the human detection device 3 in the facility to the access control device 1, and the human detection provided on the door 9 is detected. A human detection signal is transmitted from the device 5 to the access control device 1. Therefore, in the state (5), the reception state of the human detection signal of the human detection device (inside the facility) transitions to “×”, and the reception state of the human detection signal of the human detection device (door) transitions to “◯”. The reception state of other detection signals does not change from state (4).

  When the non-facility staff 52 exits the human detection area 35 and enters the human detection area 36, no human detection signal is transmitted from the human detection device 5 provided in the door 9 to the access control device 1, and human detection outside the facility is detected. A human detection signal is transmitted from the device 6 to the access control device 1. Therefore, in the state (6), the reception state of the human detection signal of the human detection device (door) transitions to “x”, and the reception state of the human detection signal of the human detection device (outside the facility) transitions to “◯”. The other detection signal reception state remains unchanged from state (5).

  When the non-staff 52 exits from the person detection area 36, transmission of the person detection signal from the person detection apparatus 6 outside the facility to the access control apparatus 1 is stopped. Therefore, in the state (7), the reception state of the human detection signal of the human detection device (outside the facility) transitions to “x”, and the reception state of the other detection signals does not change from the state (6).

  When the non-facility staff 52 enters the human detection area 37, a human detection signal is transmitted from the human detection device 7 outside the facility to the access control device 1. Therefore, in the state (8), the reception state of the human detection signal of the human detection device (outside the facility) transitions to “◯”, and the reception state of the other detection signals does not change from the state (7).

  When the non-facility staff 52 exits from the human detection area 37, transmission of the human detection signal from the human detection device 7 outside the facility to the access management device 1 is stopped. Therefore, in the state (9), the reception state of the human detection signal of the human detection device (outside the facility) transits to “x”, and the reception state of the other detection signals does not change from the state (8).

  If there is no transition of the detection signal even after the timeout time Δt elapses from the state (9), the detection signal transition data generation unit 151 of the access control device 1 determines that the passer-by has been completed, and the state (1) The detection signal transition data including the transition information of the detection signal received from each detection device from state to state (9) is generated. In the detection signal transition data generated here, the number of transitions from the start (state (1)) to the end (state (9)) of passage by the non-facility staff 52 is eight. If the number of transitions is at least 3 or more, the determination unit 153 of the access control apparatus 1 can determine whether normal traffic or unauthorized traffic.

  Although the timeout time Δt can be set arbitrarily, it is preferable to set an appropriate time in consideration of a general traffic speed. If the timeout time Δt is set too short, for example, it is determined that the traffic has been completed before the transition from the state (7) to the state (8).

  Next, transition information of the detection signal when the facility staff 50 carrying the outgoing tag 2 passes from the inside of the facility to the outside of the facility will be described with reference to FIG. Such traffic corresponds to normal traffic. Since the detection signal is not transmitted from any detection device before the facility staff 50 passes, the reception state in the transition information table is “x” (state (1)).

  When the facility staff 50 enters the tag detection area 20, the facility staff 50 carries the outgoing tag 2, and a tag detection signal is transmitted from the tag detection device 10 to the access management device 1. Therefore, in the state (2), the reception state of the tag detection signal of the tag detection device (in the facility) transitions to “◯”, and the reception state of other detection signals does not change from the state (1).

  Next, when the facility staff 50 enters the human detection area 34, a human detection signal is transmitted from the human detection device 4 in the facility to the access management device 1. Therefore, in the state (3), the reception state of the human detection signal of the human detection device (inside the facility) transitions to “◯” (reception occurs). Further, since the facility staff 50 is in the tag detection area 20, the reception state of the tag detection signal of the tag detection device (inside the facility) remains “◯”. The reception state of other detection signals does not change from state (2).

  When the facility staff 50 exits the person detection area 34, transmission of the person detection signal from the person detection device 4 in the facility to the access control device 1 is stopped. Therefore, in the state (4), the reception state of the human detection signal of the human detection device (in the facility) transitions to “x”. The reception state of other detection signals does not change from the state (3).

  When the facility staff 50 enters the human detection area 33, a human detection signal is transmitted from the human detection device 3 in the facility to the access management device 1. Therefore, in the state (5), the reception state of the human detection signal of the human detection device (inside the facility) transitions to “◯”. The reception state of other detection signals does not change from state (4).

  When the facility staff 50 exits from the human detection area 33 and enters the human detection area 35, no human detection signal is transmitted from the human detection device 3 in the facility to the access control device 1, and the human detection device provided in the door 9 is removed. A person detection signal is transmitted from 5 to the access control apparatus 1. Therefore, in the state (6), the reception state of the human detection signal of the human detection device (inside the facility) transitions to “x”, and the reception state of the human detection signal of the human detection device (door) transitions to “◯”. The reception state of other detection signals does not change from state (5).

  When the facility staff 50 passes through the door 9, exits from the tag detection area 20 and enters the tag detection area 21, the tag detection signal from the tag detection device 10 in the facility is not transmitted to the access control device 1, and the facility staff 50 A tag detection signal is transmitted from the tag detection device 11 to the access control device 1. Therefore, in the state (7), the tag detection signal reception state of the tag detection device (inside the facility) transitions to “x”, and the tag detection signal reception state of the tag detection device (outside the facility) transitions to “◯”. . Other detection devices do not change from the state (6).

  Depending on the setting range of the tag detection areas 20 and 21, the reception state of the tag detection signal of the tag detection device (outside the facility) transitions to “◯” in the state (6), and the tag detection device ( The reception status of the tag detection signal in the facility may remain “◯”.

  When the facility staff 50 leaves the human detection area 35 and enters the human detection area 36, no human detection signal is transmitted from the human detection device 5 provided in the door 9 to the access control device 1, and the human detection device outside the facility is located. A person detection signal is transmitted from 6 to the access control apparatus 1. Therefore, in the state (8), the reception state of the human detection signal of the human detection device (door) transitions to “x”, and the reception state of the human detection signal of the human detection device (outside the facility) transitions to “◯”. The reception state of other detection signals does not change from the state (7).

  When the facility staff 50 exits the person detection area 36, transmission of the person detection signal from the person detection device 6 outside the facility to the access control device 1 is stopped. Therefore, in the state (9), the reception state of the human detection signal of the human detection device (outside the facility) transitions to “x”, and the reception state of the other detection signals does not change from the state (7).

  When the facility staff 50 enters the human detection area 37, a human detection signal is transmitted from the human detection device 7 outside the facility to the access control device 1. Therefore, in the state (10), the reception state of the human detection signal of the human detection device (outside the facility) transitions to “◯”, and the reception state of the other detection signals does not change from the state (9).

  When the facility staff 52 exits from the person detection area 37, transmission of the person detection signal from the person detection device 7 outside the facility to the access control device 1 is stopped. Therefore, in the state (11), the reception state of the human detection signal of the human detection device (outside the facility) transitions to “x”, and the reception state of the other detection signals does not change from the state (10).

  When the facility staff 52 leaves the tag detection area 21, the tag detection signal is not transmitted from the tag detection device 11 outside the facility to the access management device 1. Therefore, in the state (12), the reception state of the tag detection signal of the tag detection device (outside the facility) transitions to “x”, and the reception state of the other detection signals does not change from the state (11).

  If there is no transition of the detection signal even after the timeout time Δt has elapsed from the state (12), the detection signal transition data generation unit 151 of the access control apparatus 1 determines that the passer-by has been completed, and the state (1) The detection signal transition data including the transition information of the detection signal received from each detection device from state to state (12) is generated. In the detection signal transition data generated here, the number of transitions from the start (state (1)) to the end (state (12)) by the facility staff 50 is 11.

  As shown in FIG. 8, for example, when the caregiver who is the facility staff 52 passes side by side while supporting the back of the care recipient who is the non-facility staff 52, the transition information of the detection signal is the detection described in FIG. Since the result is the same as the signal transition information, the detection signal transition data generated by the detection signal transition data generation unit 151 is the same as the detection signal transition data generated at the time of travel shown in FIG. The traffic shown in FIG. 8 corresponds to normal traffic.

  For example, the transition information of the detection signal when the caregiver who is the facility staff 52 pushes the wheelchair of the care recipient who is the non-facility staff 51 passes is as shown in FIG. In FIG. 9, for convenience of explanation, the facility staff 50 and the non-facility staff 51 are expressed as meandering, but in actuality, the facility staff 50 and the non-facility staff 51 travel linearly from the inside of the facility to the outside of the facility. The same applies to FIGS. 10 and 11 below. The traffic shown in FIG. 9 corresponds to normal traffic.

  The transition information of the detection signal when the non-facility staff 52 follows the facility staff 50 is as shown in FIG. Moreover, the transition information of the detection signal when another non-facility staff 52 follows the facility staff 50 that passes by pushing the wheelchair of the non-facility staff 51 is as shown in FIG. The traffic shown in FIGS. 10 and 11 corresponds to unauthorized traffic.

  The operation of the first embodiment of the present invention will be described with reference to FIG. Here, as described with reference to FIG. 6, the operation when the non-facility staff 52 performs unauthorized traffic alone will be described as an example.

  When the non-facility staff 52 enters the human detection area 34, the receiving unit 150 of the access control device 1 receives a human detection signal from the human detection device 4 (step S1-Yes).

  If the detection signal transition data for recording is not already generated (step S2-No), the detection signal transition data generation unit 151 newly generates the detection signal transition data for recording (step S4). When the detection signal transition data generation unit 151 has already generated the detection signal transition data for recording (step S2-Yes) or newly generated, the detection signal transition data generation unit 151 describes the information of the received detection signal in the detection signal transition data for recording. (Step S3).

  The recording detection signal transition data represents detection signal transition data before all the detection signal transition information received by the receiving unit 150 is described. For example, in the detection signal transition information illustrated in FIG. Or “×” is information about information that is not completely described. That is, the detection signal transition data, which is complete data, is completed by describing the information about the state of the reception detection signal until the passage is completed in the recording detection signal transition data.

  Here, information of detection signals for states (1) and (2) is described. As for the state (1), “x” is described as an initial state in any of the detection devices. Regarding the state (2), based on the identification information of the human detection device 4 included in the human detection signal, “◯” is described for the human detection device (in the facility), and “X” is described for the other detection devices.

  When the non-facility staff 52 leaves the person detection area 34, the receiving unit 150 does not receive the tag detection signal and the person detection signal (step S1-No).

  Then, the detection signal transition data generation unit 151 determines whether or not there is valid recording detection signal transition data, and whether the timeout time Δt has elapsed since the last detection signal was received. Effective recording detection signal transition data refers to recording detection signal transition data for which recording is continued without being discarded.

  Here, there is valid detection signal transition data for recording, and since Δt has not elapsed since the receiving unit 150 received the human detection signal from the human detection device 4 (step S5-No), the process returns to step S501.

  Subsequently, when the non-facility staff 52 enters the human detection area 33, the receiving unit 150 receives the human detection signal from the human detection device 3, so that the detection signal transition data generating unit 151 newly adds the detection signal transition data for recording. Describes the information of the received detection signal (steps S1, S2, S3). Here, information of detection signals for states (3) and (4) is described. Regarding the state (3), since no detection signal is received from any of the detection devices, “x” is described for all the detection devices. Regarding the state (4), based on the identification information of the human detection device 3 included in the human detection signal, “◯” is described for the human detection device (in the facility), and “X” is described for the other detection devices.

  Similarly, the detection signal transition data generation unit 151 describes the received detection signal information for the states (5) to (9) in the recording detection signal transition data (steps S1, S2, and S3). , S5).

  When the non-facility staff 52 finishes passing and Δt elapses from the state (9) in which the last detection signal is received (step S5-Yes), the detection signal transition data generation unit 151 has three or more detection signal transitions. And it is discriminate | determined whether the human detection signal from the human detection apparatus 5 provided in the door 9 was received (step S6).

  The detection signal transition data generation unit 151 generates the detection signal so far when the number of transitions of the detection signal is less than 3 or when the human detection signal from the human detection device 5 is not received (step S6-No). The recording detection signal transition data is discarded as invalid (step S10). This is because when the number of transitions of the detection signal is less than 3, the determination unit 153 cannot determine normal traffic or illegal traffic, and when the human detection signal from the human detection device 5 has not been received, This is because the staff 52 does not pass through the door 9 and the problem of unauthorized traffic does not occur.

  When the number of transitions of the detection signal is 3 or more and the human detection signal from the human detection device 5 is received (step S6-Yes), the detection signal transition data generation unit 151 records the detection signal transition for recording. Data is generated as completed detection signal transition data, and is output to the determination unit 153.

  The determination unit 153 compares the detection signal transition data generated by the detection signal transition data generation unit 151 with the detection signal transition data during normal traffic stored in advance in the storage unit 152 (step S7). The detection signal transition data during normal traffic may be data including detection signal transition information illustrated in FIGS. 7, 8, and 9, for example, and each detection signal transition data is stored in the storage unit 152. . More specifically, the determination unit 153 stores “◯” or “×” described in the transition information (corresponding to the transition information table in FIG. 6) included in the detection signal transition data in the storage unit 152. Whether “○” or “×” described in the transition information (corresponding to the transition information tables in FIGS. 7, 8, and 9) included in the stored normal signal detection signal transition data matches Check for each.

  When the generated detection signal transition data matches any of the detection signal transition data during normal traffic stored in the storage unit 152 (step S8—No), the determination unit 153 determines that the traffic is normal. To do. In that case, the alert control unit 154 does not transmit an alarm instruction signal, and the detection signal transition data generation unit 151 invalidates the generated detection signal transition data (step S10), and the process ends.

  Here, since the detection signal transition data generated based on the passage of the non-facility staff 52 does not match any of the detection signal transition data during normal passage stored in the storage unit 152, the determination unit 153 determines the passage. It is determined that the traffic is illegal (step S8—Yes).

  Then, based on the determination result of the determination unit 153, the notification control unit 154 transmits a notification instruction signal for instructing notification to an external device, and performs notification control (step S9).

  After the issue control, the detection signal transition data generation unit 151 invalidates the generated detection signal transition data (step S10), and the process ends.

  In addition, the detection signal transition data at the time of unauthorized traffic is stored in the storage unit 152 in advance, and the detected signal transition data generated at step S7 is compared with the detected signal transition data at the time of unauthorized traffic. You may decide whether it is traffic or unauthorized traffic.

  As described above, according to the first embodiment of the present invention, the entrance / exit management device 1 includes detection information including the transition information of the human detection signal from the human detection device or the tag detection signal from the tag detection device obtained by traffic. Since the signal transition data and the pre-stored detection signal transition data during normal traffic are compared to determine whether the traffic is normal traffic or illegal traffic, it is possible to improve the accuracy of determining illegal traffic.

  Even if the non-facility staff 52 does not carry the tag, if the detection signal transition data is stored in advance as normal traffic, it is not determined that the traffic is illegal and an alarm is not erroneously issued. It becomes possible to do. For example, even if a caregiver carrying an outgoing tag is accompanied by a care recipient who does not carry an outgoing tag and passes through an entrance / exit, it is determined that the passage is normal and an alarm is not erroneously issued. it can.

  Heretofore, the arrangement configuration of each detection device and each tag detection device has been described using the arrangement of FIGS. 1 to 4 as an example, but is not limited to this arrangement configuration. For example, as shown in FIG. 13, a configuration in which one human detection device is arranged inside and outside the facility may be employed. Further, as shown in FIG. 14, the human detection devices 3 and 4 may be arranged in the facility so that the human detection areas 33 and 34 cover the door 9 of the entrance / exit in a square shape. The same applies to the human detection devices 6 and 7 arranged outside the facility. Moreover, you may adjust arbitrarily also about the range of the tag detection area by a tag detection apparatus. As described above, the arrangement configuration of the human detection device and the tag detection device is not limited to a specific arrangement configuration as long as detection signal transition data including information having at least three transition numbers can be generated. The same applies to the ranges of the human detection area and the tag detection area. A configuration in which the human detection device and the tag detection device are arranged only in either the facility or the outside of the facility is also possible.

  Moreover, although it demonstrated as what determines whether normal traffic or unauthorized traffic about the traffic from the inside of a facility to the outside until now, it is not limited to this. That is, the present invention can also be applied to a case where it is determined whether normal traffic or illegal traffic is passed from outside the facility to inside the facility.

Embodiment 2. FIG.
The second embodiment of the present invention will be described below with reference to the drawings. FIG. 15 is a diagram showing a configuration of the access control system according to the second embodiment. FIG. 16 is a diagram illustrating a Fresnel lens of the human detection device according to the second embodiment. FIG. 17 is a diagram illustrating a situation where the facility staff 50 passes through the entrance / exit in the second embodiment. FIG. 18 is a diagram illustrating a situation where the facility staff 50 and the non-facility staff 51 pass through the entrance / exit in the second embodiment. FIG. 19 is a diagram showing a person detection area and a tag detection area provided in the vicinity of the entrance / exit according to the second embodiment.

  The entrance / exit management system of the second embodiment is different from the structure of the human detection devices 3, 4, 5, 6, and 7 shown in FIG. 1 in the structure of the human detection devices 103 and 106. As shown in FIG. The difference from Embodiment 1 is that only one unit is disposed outside the facility. Since the other configuration is the same as that of the first embodiment, the same reference numerals as those in FIG.

  The human detection devices 103 and 106 include an infrared sensor, detect an intrusion of a person into a predetermined human detection area, and transmit a human detection signal indicating that to the ingress / egress management device 1 when an intrusion is detected. The person detection signal also includes identification information of the own device that is the transmission source. The range of the human detection area can be adjusted by limiting the arrival of infrared rays by providing a sensor with a physical structure that does not transmit infrared rays.

  Further, the human detection devices 103 and 106 are processed so as to cover the central portion of the Fresnel lens that collects infrared rays in a band shape, so that one human detection device can set two human detection areas. .

  As shown in FIG. 16, a lens region such as a lens pattern 202 that is finely divided is formed in the Fresnel lens 201 before processing, and each lens pattern 202 has an infrared ray in a range assigned at the time of designing the Fresnel lens. Is condensed on the infrared sensor. The lens pattern 204 after processing is processed as shown in FIG. 16 by performing processing that covers some lens regions in the center of the lens pattern 202 of the Fresnel lens 201 before processing in a band shape based on the design data of the Fresnel lens. Thus, the processed Fresnel lens 203 can set two human detection areas. A plurality of human detection areas can be set by changing the processing pattern.

  As shown in FIGS. 17 and 18, the human detection device 103 arranged in the facility can provide two human detection areas 133 and 134 with one device. The human detection device 103 is disposed at a position where the human detection area 133 detects a human intrusion near the door 9 and the human detection area 134 can detect a human intrusion far away from the door 9. For example, what is necessary is just to arrange | position to the ceiling corresponding to the intermediate point of the human detection apparatus 3 and the human detection apparatus 4 in FIG. The same applies to the human detection device 104 arranged outside the facility.

  As shown in FIG. 19, one human detection device 103 detects a human detection area 133 near the door 9 and a human detection area 134 far from the door 9. Similarly, the single human detection device 106 detects the human detection area 136 near the door 9 and the human detection area 137 far from the door 9.

  As described above, according to the second embodiment of the present invention, the lens pattern 204 of the Fresnel lens 203 of the human detection devices 103 and 106 is processed, and a plurality of detection areas are set by one human detection device 103 and 106. As a result, it is possible to accurately determine normal or unauthorized passage of passers-by with a small number of detection devices, and the overall scale of the access control system can be reduced while reducing costs.

  1 access control device, 2 outgoing tag, 3-7, 103, 106 human detection device, 9 door, 10, 11 tag detection device, 12 tag detection radio wave, 13 tag response radio wave, 15 network, 20, 21 tag detection area, 33-37, 133, 134, 136, 137 Person detection area, 50 facility staff, 51, 52 non-facility staff, 150 reception unit, 151 detection signal transition data generation unit, 152 storage unit, 153 determination unit, 154 alert control , 201 Fresnel lens before processing, 202 Lens pattern before processing, 203 Fresnel lens after processing, 204 Lens pattern after processing

Claims (10)

A tag detection device that transmits a tag detection signal when detecting an outgoing tag carried by a passerby that passes through the doorway;
A human detection device that transmits a human detection signal upon detecting a human intrusion into a human detection area set near the entrance;
An entrance / exit management system that is connected to the tag detection device and the human detection device and controls to issue an alarm when there is unauthorized traffic to the entrance / exit,
The access control device
A receiving unit for receiving the tag detection signal and the person detection signal;
A detection signal transition data generation unit that generates detection signal transition data including information about the transition of the tag detection signal and the human detection signal received by the reception unit;
A storage unit that stores the detection signal transition data when the doorway is normally passed;
A determination unit that compares the detection signal transition data stored in the storage unit with the detection signal transition data generated by the detection signal transition data generation unit and determines whether or not the entrance / exit traffic is unauthorized traffic; ,
And a control unit that controls to issue an alarm when the determination unit determines that the traffic is illegal.   A plurality of the tag detection devices and a plurality of the human detection devices are connected to the access control device, and the detection signal transition data generation unit is information about transitions of the plurality of tag detection signals and the plurality of human detection signals. The entry / exit management system according to claim 1, wherein the detection signal transition data including a message is generated. In the storage unit, the detection signal transition data when illegally passing through the doorway is stored,
The determination unit compares the detection signal transition data during illegal traffic stored in the storage unit with the detection signal transition data generated by the detection signal transition data generation unit to determine whether the entrance / exit traffic is illegal The access control system according to claim 1, wherein it is determined whether or not.   The storage unit stores a plurality of the detection signal transition data when normally passing through the doorway, and the determination unit is generated by each of the plurality of detection signal transition data and the detection signal transition data generation unit The access control system according to claim 1 or 2, wherein the detection signal transition data is compared.   The access control system according to claim 1, wherein the human detection device is formed by processing a Fresnel lens that collects infrared rays so as to set a plurality of the human detection areas. . The human detection device is a first human detection device that detects an intrusion of a person into the human detection area near the door of the doorway,
A second human detection device that is installed on the entrance side of the entrance and that detects an intrusion of a person into the human detection area farther from the door than the human detection area of the first human detection device;
A third person detection device that is installed on the entrance side of the entrance and that detects a person entering the person detection area farther from the door than the person detection area of the second person detection device. The entrance / exit management system according to any one of claims 1 to 5. The human detection device is installed on the exit side of the doorway, and a fourth human detection that detects an intrusion of a person into the human detection area farther from the door than the human detection area of the first human detection device. Equipment,
A fifth human detection device that is installed on the exit side of the entrance and detects a person entering the human detection area farther from the door than the human detection area of the fourth human detection device. The entrance / exit management system according to claim 6.   The said determination part does not determine whether the passage of the said entrance / exit is an unauthorized passage, when the said human detection signal from the said 1st human detection apparatus is not received by the said receiving part. The access control system according to 6 or 7. The tag detection device is installed on the entrance side of the entrance, and the first tag detection device detects the outgoing tag carried by a passerby on the entrance side of the entrance,
9. A second tag detection device that is installed on the exit side of the entrance and detects the outgoing tag carried by a passerby on the exit side of the entrance. The entry / exit management system described. A tag detection signal indicating that a transmission tag carried by a passerby passing through the entrance / exit is detected, and a person detection signal indicating that a person has entered the human detection area set near the entrance / exit are received. A receiver,
A detection signal transition data generation unit that generates detection signal transition data including information about the transition of the tag detection signal and the human detection signal received by the reception unit;
A storage unit that stores the detection signal transition data when the doorway is normally passed;
A determination unit that compares the detection signal transition data stored in the storage unit with the detection signal transition data generated by the detection signal transition data generation unit and determines whether or not the entrance / exit traffic is unauthorized traffic; ,
An access management apparatus comprising: a control unit that controls to issue an alarm when the determination unit determines unauthorized traffic.

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