WO2017163416A1

WO2017163416A1 - Room entry/exit management system

Info

Publication number: WO2017163416A1
Application number: PCT/JP2016/059713
Authority: WO
Inventors: 藤田　直子
Original assignee: 三菱電機株式会社
Priority date: 2016-03-25
Filing date: 2016-03-25
Publication date: 2017-09-28

Abstract

Provided is a room entry/exit management system which improves the security of a plurality of organizations sharing a continuous space, without interfering with communication between the plurality of organizations. This room entry/exit management system is provided with: antennas 1 provided in each of a plurality of monitoring areas respectively belonging to a plurality of separate management areas; a location detection unit 12 which detects, as a user presence area, the monitoring area corresponding to an antenna 1 that has received a response signal; and an abnormality determination unit 15 which, when a situation occurs in which identification information included in the response signal received by the antenna 1 corresponding to the monitoring area detected as the user presence area is not preassociated with any entry restrictions for the monitoring area, determines that the situation is abnormal if the number of persons present in the management area to which the monitoring area belongs is zero, or determines that the situation is not abnormal if the number of persons present in the management area is not zero.

Description

Entrance / exit management system

The present invention relates to an entrance / exit management system.

The following Patent Document 1 describes a system in which the authority to enter a monitoring area in a management area can be set for each user.

Japanese Unexamined Patent Publication No. 2006-195504

According to the system described in Patent Document 1, for example, when a plurality of companies share one floor or one room, it can be detected as an abnormality that someone from another company enters the company area. For this reason, the system can improve the security of the plurality of companies. However, the system detects that a person of another company enters the company area as an anomaly even in a situation where the person of the company is present. For this reason, the system prevents smooth communication between the plurality of companies.

The present invention has been made to solve the above problems. The purpose is to provide an entrance / exit management system that improves the security of a plurality of organizations without interfering with communication between the organizations sharing a continuous space.

The entrance / exit management system according to the present invention is provided for each monitoring area belonging to each of a plurality of non-overlapping management areas, transmits an activation signal to the corresponding monitoring area, and receives identification information from an identifier present in the corresponding monitoring area. Including an antenna that receives a response signal including a position detection unit that detects a monitoring region corresponding to the antenna that has received the response signal as a user presence region, and an antenna corresponding to the monitoring region detected as the user presence region. An occupancy information update unit for updating the number of people in the management area to which the monitoring area belongs, when the identification information included in the response signal is previously associated with the right to enter the monitoring area; The identification information included in the response signal received by the antenna corresponding to the monitoring area detected as the person existing area is associated with the authority to enter the monitoring area in advance. When the number of people in the management area to which the monitoring area belongs is 0, it is determined that there is an abnormality, and when the number of people in the management area is not 0, it is abnormal. And an abnormality determination unit that does not determine.

In the entrance / exit management system according to the present invention, the abnormality determination unit associates the identification information included in the response signal received by the antenna corresponding to the monitoring area detected as the user presence area in advance with the right to enter the monitoring area. When the number of people in the management area to which the monitoring area belongs is 0, it is determined that there is an abnormality, and when the number of people in the management area is not 0, it is abnormal. Not determined. For this reason, according to this invention, the security of the said some organization can be improved, without preventing the communication between the some organizations which share the continuous space.

It is a block diagram of the entrance / exit management system in Embodiment 1 of this invention. It is a schematic diagram which shows the concept of the management area in Embodiment 1 of this invention. It is a schematic diagram which shows an example of the some management area to which the entrance / exit management system in Embodiment 1 of this invention was applied. It is a schematic diagram which shows the electromagnetic wave range of the antenna provided in the some management area shown in FIG. It is a 1st schematic diagram which shows the operation example of the entrance / exit management system in Embodiment 1 of this invention. It is a 2nd schematic diagram which shows the operation example of the entrance / exit management system in Embodiment 1 of this invention. It is a flowchart which shows the operation example of the entrance / exit management apparatus in Embodiment 1 of this invention. It is a flowchart which shows the operation example of the entrance / exit management apparatus in Embodiment 2 of this invention. It is a schematic diagram which shows an example of the some management area to which the entrance / exit management system in Embodiment 3 of this invention was applied. It is a schematic diagram which shows the electromagnetic wave range of the antenna provided in the some management area shown in FIG. 9 of this invention. It is a schematic diagram which shows an example of the interference zone in Embodiment 3 of this invention. It is a figure which shows the operation example of the antenna control part 11 in Embodiment 3 of this invention. It is a hardware block diagram of an entrance / exit management apparatus.

The present invention will be described in detail with reference to the accompanying drawings. In each figure, the same or corresponding parts are denoted by the same reference numerals. The overlapping description will be simplified or omitted as appropriate.

Embodiment 1 FIG.
The entrance / exit management system is applied to a plurality of non-overlapping management areas set in a continuous space. The continuous space is, for example, one floor or one room in which movement of a person is not physically restricted. One or more monitoring areas are set in the management area.

FIG. 1 is a configuration diagram of an entrance / exit management system according to the first embodiment.

As shown in FIG. 1, the entrance / exit management system includes an antenna 1, a tag reader 2, an entrance / exit management device 3, and a center device 4. The antenna 1 is installed on, for example, a ceiling and a wall in a building. The antenna 1 is connected to the tag reader 2. A plurality of antennas 1 can be connected to one tag reader 2. The maximum number of antennas 1 that can be connected to one tag reader 2 is four, for example. The tag reader 2 is connected to the entrance / exit management device 3. The entrance / exit management device 3 can communicate with the center device 4.

As shown in FIG. 1, the entrance / exit management device 3 includes a storage unit 5 and a control unit 6. The storage unit 5 stores a management area list 7, an entrance authority list 8, an in-room information list 9, and in-room number information 10. The management area list 7 and the entrance authority list 8 are set in advance. The control unit 6 includes an antenna control unit 11, a position detection unit 12, a collation unit 13, an in-room information update unit 14, an abnormality determination unit 15, a notification unit 16, and an area setting unit 17.

The center device 4 is provided, for example, in a room different from the space in which the management area is set. The center device 4 is provided, for example, in a central management room of a building. An administrator or the like is resident in the room where the center device 4 is provided.

The user of the entrance / exit management system carries an identification body having identification information. The identification information is, for example, an ID or a personal number. In the first embodiment, the user carries the hands-free tag 18 as an identifier. The hands-free tag 18 has a tag ID as identification information. That is, in the entrance / exit management system in Embodiment 1, the tag ID is used as identification information. Hereinafter, the hands-free tag is abbreviated as “tag”.

The antenna 1 has a function of transmitting LF radio waves. The antenna 1 transmits LF radio waves in a certain radio wave range. Transmission of the LF radio wave from the antenna 1 is controlled by the antenna control unit 11. For example, the antenna control unit 11 transmits LF radio waves from the antenna 1 at a cycle of 1 second. The tag 18 transmits a response signal when receiving the LF radio wave from the antenna 1. The response signal transmitted from the tag 18 includes the tag ID of the tag 18. The antenna 1 receives a response signal. That is, wireless communication using radio waves is performed between the antenna 1 and the tag 18.

When the tag 18 receives an LF radio wave from the antenna 1, for example, the tag 18 transmits a response signal reaching a range similar to the radio wave range of the antenna 1. The antenna 1 receives, for example, a response signal from the tag 18 existing within the radio wave range of the antenna 1. For example, the antenna 1 does not receive a response signal from the tag 18 that exists outside the radio wave range of the antenna 1.

The tag reader 2 generates tag information. The tag information includes, for example, a tag ID included in the response signal associated with the antenna identification information of the antenna 1 that has received the response signal. The antenna identification information is information for specifying each antenna 1. The antenna identification information is represented by, for example, a number, a symbol, or a character. The tag reader 2 transmits tag information to the entrance / exit management device 3. The entrance / exit management device 3 detects the position where the user carrying the tag 18 exists based on the tag information.

FIG. 2 is a schematic diagram showing the concept of the management area in the first embodiment.

FIG. 2 shows one management area. In the management area shown in FIG. 2, four antennas 1 connected to one tag reader 2 are provided. The radio wave range 19 of each antenna 1 is indicated in the figure by a circular solid line. Each antenna 1 is disposed so as to be included in at least one radio wave range 19 at any position in the management area, for example. The number of antennas 1 provided is determined according to the size of the management area. Since there is an upper limit on the number of antennas 1 that can be connected to one tag reader 2, a plurality of tag readers 2 may be provided depending on the size of the management area.

FIG. 3 is a schematic diagram showing an example of a plurality of management areas to which the entrance / exit management system according to the first embodiment is applied.

FIG. 3 shows a state where the first management area and the second management area are set in one room. The first management area and the second management area do not overlap. A region between the first management area and the second management area is a passage. The passage does not belong to either the first management area or the second management area.

A plurality of monitoring areas are set in the first management area and the second management area. Monitoring areas A, B, C, D, E, F, G, H, and I belong to the first management area. The monitoring areas J, K, L, M, N, O, P, Q, and R belong to the second management area. In each monitoring area shown in FIG. 3, one antenna 1 is provided. That is, the antenna 1 is provided for each monitoring area.

FIG. 4 is a schematic diagram showing the radio wave ranges of the antennas provided in the plurality of management areas shown in FIG.

In FIG. 4, the radio wave range 19 of each antenna 1 is indicated in the figure by a circular solid line. As shown in FIG. 4, the size of the radio wave range 19 of the antenna 1 is equivalent to the size of the monitoring area where the antenna 1 is provided. That is, the antenna 1 transmits an activation signal to the corresponding monitoring area. The radio wave range 19 of the antenna 1 corresponding to the monitoring areas C, F, I, J, M, and P adjacent to the passage may include a part of the passage.

Each antenna 1 provided in each monitoring area shown in FIG. 3 has individual antenna identification information. The antenna 1 corresponding to the monitoring area A has antenna identification information A. The antenna 1 corresponding to the monitoring area B has antenna identification information B. The antenna 1 corresponding to the monitoring area C has antenna identification information C. The antenna 1 corresponding to the monitoring area D has antenna identification information D. The antenna 1 corresponding to the monitoring area E has antenna identification information E. The antenna 1 corresponding to the monitoring area F has antenna identification information F. The antenna 1 corresponding to the monitoring area G has antenna identification information G. The antenna 1 corresponding to the monitoring area H has antenna identification information H. The antenna 1 corresponding to the monitoring area I has antenna identification information I. The antenna 1 corresponding to the monitoring area J has antenna identification information J. The antenna 1 corresponding to the monitoring area K has antenna identification information K. The antenna 1 corresponding to the monitoring area L has antenna identification information L. The antenna 1 corresponding to the monitoring area M has antenna identification information M. The antenna 1 corresponding to the monitoring area N has antenna identification information N. The antenna 1 corresponding to the monitoring area O has antenna identification information O. The antenna 1 corresponding to the monitoring area P has antenna identification information P. The antenna 1 corresponding to the monitoring area Q has antenna identification information Q. The antenna 1 corresponding to the monitoring region R has antenna identification information R.

Table 1 below shows an example of the management area list 7 in the first embodiment. The management area list 7 shown in Table 1 relates to a plurality of management areas shown in FIG.

As shown in Table 1, the management area list 7 shows antenna identification information for specifying the antenna 1 corresponding to the monitoring area belonging to the management area in association with the management area. That is, the management area list 7 shows the monitoring areas belonging to the management area for each management area.

Table 2 below shows an example of the admission authority list 8 in the first embodiment. The admission authority list 8 shown in Table 2 relates to a plurality of management areas shown in FIG.

As shown in Table 2, the admission authority list 8 indicates “presence / absence of admission authority” associated with the tag ID. “Presence / absence of admission authority” is set to “◯” or “×” for each antenna identification information. “◯” set for the antenna identification information indicates that the user has authority to enter the monitoring area in which the antenna 1 specified by the antenna identification information is provided. “X” set for the antenna identification information indicates that there is no authority to enter the monitoring area where the antenna 1 specified by the antenna identification information is provided. That is, the admission authority list 8 shows the admission authority to the monitoring area of the user carrying the tag 18 having the tag ID for each tag ID.

Table 3 below shows an example of the occupancy information list 9 in the first embodiment. The occupancy information list 9 shown in Table 3 relates to a plurality of management areas shown in FIG.

As shown in Table 3, the occupancy information list 9 indicates “occupancy management area” and “final tag detection area” associated with the tag ID. The “occupancy management area” indicates a management area where a user carrying the tag 18 having the associated tag ID is permitted to enter. In the “final tag detection area”, for example, the antenna identification information of the antenna 1 that lastly received the tag ID in the associated “occupancy management area” is recorded. In the “final tag detection area”, the antenna identification information of the antenna 1 that lastly received the tag ID outside the associated “occupancy management area” is not recorded. In the “final tag detection area”, for example, information indicating that the user carrying the tag 18 having the associated tag ID is absent in the associated “occupancy management area” is recorded. . That is, the occupancy information list 9 indicates, for each tag ID, whether or not the user carrying the tag 18 having the tag ID is present in the “occupancy management area” associated with the tag ID. The absence of the user may be determined based on, for example, an elapsed time since the tag ID was last received. The absence of the user may be determined, for example, when it is detected by a device (not shown) that the tag 18 has passed through the entrance of the room.

The occupancy information 10 is information indicating the “occupancy” for each management area. The “number of people in the management area” is the number of users who are permitted to enter the management area among the users currently in the management area. For example, the “number of people in the room” in the first management area indicates that the “final tag detection area” is absent from the tag IDs in which the first management area is set as “in-room management area” in Table 3. The total number of non-information.

The position detection unit 12 detects the monitoring area provided with the antenna 1 specified by the antenna identification information included in the tag information transmitted from the tag reader 2 as an area where the user is present. That is, the position detection unit 12 detects a monitoring area corresponding to the antenna 1 that has received the response signal from the tag 18 as a user presence area.

The collation unit 13 determines the management area to which the monitoring area detected as the user existing area belongs based on the management area list 7. Based on the admission authority list 8, the verification unit 13 associates the tag ID included in the response signal received by the antenna 1 corresponding to the monitoring area detected as the user presence area with the admission authority to the monitoring area. Determine whether or not. That is, the collation unit 13 determines whether or not the user who carries the tag 18 having the tag ID has the right to enter the user presence area.

In the occupancy information update unit 14, the tag ID included in the response signal received by the antenna 1 corresponding to the monitoring area detected as the user presence area is associated in advance with the right to enter the monitoring area. In this case, the occupancy information list 9 and the occupancy information 10 are updated. The occupancy information update unit 14 records the monitoring area as, for example, a “final tag detection area” associated with the tag ID. The occupancy information update unit 14 increases, for example, the “occupancy number” of the management area to which the monitoring area belongs.

In the case where the tag ID included in the response signal received by the antenna 1 corresponding to the monitoring area detected as the user presence area is not previously associated with the entry authority to the monitoring area, the abnormality determination unit 15 When the “occupancy number” of the management area to which the monitoring area belongs is 0, it is determined to be abnormal, and when the “occupancy number” of the management area is not 0, it is not determined to be abnormal. That is, the abnormality determination unit 15 can determine that an abnormality has occurred when a user who is not permitted to enter the management area enters the management area. However, the abnormality determination unit 15 does not determine that there is an abnormality when the user who is permitted to enter the management area is in the management area.

The notification unit 16 notifies the center device 4 of an alarm when the abnormality determination unit 15 determines that there is an abnormality. That is, the notification unit 16 issues a warning to the administrator. For example, the center device 4 sounds a buzzer when receiving a warning notification.

When the abnormality determination unit 15 determines that an abnormality has occurred, the notification unit 16 may emit a warning sound, a voice announcement, or the like to the management area to which the monitoring area detected as the user presence area belongs. For example, the sounding of the warning sound and the broadcasting of the voice announcement are performed using a speaker (not shown) provided in each management area.

The area setting unit 17 has a function of changing the contents of the management area list 7 and the entrance authority list 8. For example, the area setting unit 17 changes the contents of the management area list 7 and the entrance authority list 8 based on an operation on the center device 4.

FIG. 5 is a first schematic diagram showing an operation example of the entrance / exit management system in the first embodiment. FIG. 6 is a second schematic diagram illustrating an operation example of the entry / exit management system in the first embodiment. 5 and 6 show an operation example of the entrance / exit management system applied to the plurality of management areas shown in FIG. The user shown in FIGS. 5 and 6 carries a tag 18 having a tag ID: 00001.

FIG. 5 shows a state where the user is in the monitoring area C. As shown in Table 2, the user has an entry authority from the monitoring area A to the monitoring area I. That is, the user is permitted to enter the first management area. For this reason, in the case shown in FIG. 5, the abnormality determination unit 15 does not determine that there is an abnormality.

FIG. 6 shows a state in which the user is in the monitoring area J. As shown in Table 2, the user does not have the right to enter the monitoring area J from the monitoring area J. That is, the user is not permitted to enter the second management area. In the second management area, there are no other users permitted to enter the second management area. For this reason, in the case shown in FIG. 6, the abnormality determination unit 15 determines that there is an abnormality.

FIG. 7 is a flowchart showing an operation example of the entrance / exit management device in the first embodiment.

When receiving the tag information (step S101), the control unit 6 acquires the user presence area and the tag ID based on the tag information (step S102). The control unit 6 acquires the management area list 7 from the storage unit 5 (step S103). The control unit 6 determines the management area to which the user presence area belongs based on the management area list 7 (step S104). The control unit 6 acquires the entrance authority list 8 from the storage unit 5 (step S105). Based on the entrance authority list 8, the control unit 6 determines whether or not the user carrying the tag 18 having the tag ID has the entrance authority to the user presence area (step S106).

If it is determined in step S106 that the user has the right to enter the user presence area, the control unit 6 acquires the occupancy information list 9 from the storage unit 5 (step S107). Based on the occupancy information list 9, the control unit 6 determines whether the user is already occupying the management area (step S108). If it is determined in step S108 that the user is not already in the management area, the control unit 6 increases the “number of people in the room” by one (step S109). That is, in step S109, the occupancy information 10 is updated. Following step S109, the control unit 6 updates the occupancy information list 9 (step S110). When it is determined in step S108 that the user is already in the management area, the control unit 6 performs the process of step S110 without performing the process of step S109.

If it is determined in step S106 that the user does not have the authority to enter the user presence area, the control unit 6 has zero “occupancy number” in the management area based on the occupancy number information 10. Whether or not (step S111). When it is determined in step S111 that the “number of people in the room” in the management area is zero, the control unit 6 issues an alarm (step S112). When it is determined in step S111 that the “number of people in the room” in the management area is not 0, the control unit 6 does not issue an alarm.

In Embodiment 1, an antenna is provided for each monitoring area belonging to each of a plurality of non-overlapping management areas set in a continuous space, transmits an activation signal to the corresponding monitoring area, and A response signal including identification information is received from an existing identifier. The position detection unit 12 detects a monitoring area corresponding to the antenna 1 that has received the response signal as a user presence area. The occupancy information update unit 14 associates the identification information included in the response signal received by the antenna 1 corresponding to the monitoring area detected as the user existing area by the position detection unit 12 with the authority to enter the monitoring area in advance. If it is, the “number of people in the room” of the management area to which the monitoring area belongs is updated. In the abnormality determination unit 15, the identification information included in the response signal received by the antenna 1 corresponding to the monitoring region detected as the user presence region by the position detection unit 12 is not associated with the right to enter the monitoring region in advance. If the “occupancy number” of the management area to which the monitoring area belongs is 0, it is determined to be abnormal, and if the “occupancy number” of the management area is not 0, it is abnormal. Not determined to be. Therefore, according to the first embodiment, for example, if a user who is permitted to enter the first management area is in the first management area, entry to the first management area is permitted. It is not considered an illegal intrusion that no other user enters the first management area. As a result, the security of the plurality of organizations can be improved without hindering communication between the plurality of organizations sharing one floor or one room.

In the first embodiment, the storage unit 5 stores a management area list 7 and an entrance authority list 8 that indicate antenna identification information for identifying the antenna 1 corresponding to the monitoring area belonging to the management area in association with the management area. The area setting unit 17 has a function of changing the contents of the management area list 7 and the entrance authority list 8. For this reason, according to Embodiment 1, the monitoring area belonging to the management area and the entry authority to each monitoring area can be changed. As a result, for example, even if the size or number of a plurality of organizations sharing one floor or one room changes, the management area and the entry authority can be easily set.

In the first embodiment, the notification unit 16 causes the abnormality determination unit 15 to detect an abnormality based on the identification information included in the response signal received by the antenna 1 corresponding to the monitoring region detected as the user presence region by the position detection unit 12. When it is determined that it is, an alarm is issued to the administrator. For this reason, according to Embodiment 1, when there is an illegal intrusion into the management area, it can be notified to the administrator.

Embodiment 2. FIG.
Hereinafter, the configuration of the entrance / exit management system will be described focusing on the differences from the first embodiment. Parts that are the same as or equivalent to those in the first embodiment are given the same reference numerals, and a part of the description is omitted.

Table 4 below shows an example of the management area list 7 in the second embodiment.

As shown in Table 4, the management area list 7 in the second embodiment includes antenna identification information for specifying the antenna 1 corresponding to the monitoring area belonging to the boundary area. The boundary area is configured by a monitoring area adjacent to an area that is not a management area to which the monitoring area belongs. In the example shown in FIG. 3, the monitoring areas C, F, I, J, M, and P belong to the boundary area.

FIG. 8 is a flowchart showing an operation example of the entrance / exit management device according to the second embodiment.

The processing from step S201 to step S211 in FIG. 8 is the same as the processing from step S101 to step S111 in FIG.

When it is determined in step S211 that the “number of people in the room” in the management area is 0, the control unit 6 determines whether the user existence area belongs to the boundary area based on the management area list 7. (Step S212). When it is determined in step S212 that the user presence area does not belong to the boundary area, the control unit 6 issues an alarm (step S215).

When it is determined in step S212 that the user existing area belongs to the boundary area, the control unit 6 measures the staying time of the user in the user existing area (step S213). The control unit 6 determines whether or not the user stays in the user presence area for a predetermined time or longer (step S214). When it is determined in step S214 that the user has stayed for a certain time or longer, the control unit 6 performs the process of step S215. When it is determined in step S214 that the user has not stayed for a certain period of time, the control unit 6 does not issue an alarm.

The staying time of the user in the user presence area is measured based on the number of times response signals including the same tag ID are continuously received by the antenna 1 corresponding to the user presence area. The predetermined time, which is a reference for whether or not to issue an alarm, is set to 5 seconds, for example.

In the second embodiment, the abnormality determination unit 15 preliminarily inputs the identification information included in the response signal received by the antenna 1 corresponding to the monitoring region detected as the user presence region by the position detection unit 12 into the monitoring region. In the case where the number of people in the management area to which the monitoring area belongs is 0 and the monitoring area is adjacent to a non-management area, the identification information is not associated with authority. It is determined that the response signal including the identification information is abnormal when the response signal including the identification information is continuously received by the antenna 1 more than the preset number of times. When it is not received, it is not determined to be abnormal. For this reason, according to the second embodiment, for example, even if a user passing through the passage unintentionally enters the boundary area included in the management area that is not permitted to enter, it is immediately illegal. It is never considered an intrusion. As a result, in addition to the same effects as those of the first embodiment, it is possible to prevent erroneous determination when the user does not intend to intrude.

In Embodiment 2, when the user enters the boundary area, the notification unit 16 issues a warning different from the warning that is issued when the abnormality determination unit 15 determines that the abnormality is detected. Also good. In the second embodiment, the storage unit 5 may store the entrance authority for the monitoring area belonging to the boundary area.

Embodiment 3 FIG.
Hereinafter, the configuration of the entrance / exit management system will be described focusing on the differences from the first and second embodiments. Portions that are the same as or equivalent to those in the first and second embodiments are denoted by the same reference numerals, and a part of the description is omitted.

FIG. 9 is a schematic diagram illustrating an example of a plurality of management areas to which the entrance / exit management system according to the third embodiment is applied. FIG. 10 is a schematic diagram showing the radio wave ranges of the antennas provided in the plurality of management areas shown in FIG.

As shown in FIG. 9, in the third embodiment, there is no passage between the first management area and the second management area. In other words, any position in the room belongs to one of the management areas. The monitoring areas C, F, I, J, M, and P belong to the boundary area.

As shown in FIG. 10, a part of the radio wave range 19 of the antenna 1 corresponding to the monitoring area belonging to the boundary area is a radio wave of the other antenna 1 corresponding to the monitoring area belonging to the management area that is not the management area to which the monitoring area belongs. Overlapping part of range 19. Hereinafter, a portion where the radio wave ranges 19 of the antenna 1 corresponding to the monitoring areas belonging to different management areas overlap is referred to as an “interference zone”. If the activation signal is transmitted simultaneously to the plurality of radio wave ranges 19 forming the interference zone, the LF radio wave may interfere.

FIG. 11 is a schematic diagram showing an example of an interference zone in the third embodiment. FIG. 11 shows a state in which four tag readers 2 to which four antennas 1 are connected are provided. Each tag reader 2 is connected to an entrance / exit management device 3.

In FIG. 11, the four tag readers 2 are distinguished based on the corresponding management area. The first tag reader corresponds to the back side of the left management area. The third tag reader corresponds to the front side of the left management area. It corresponds to the back side of the management area on the right side of the second tag reader. The fourth tag reader corresponds to the front side of the right management area.

In FIG. 11, the four antennas 1 connected to the same tag reader 2 are distinguished based on the relative positional relationship. The first antenna is located on the left side of the second antenna. The 1st antenna is located in the back side rather than the 3rd antenna. The fourth antenna is located on the right side of the third antenna. The fourth antenna is located on the near side of the second antenna.

An interference zone is formed between the second antenna of the first tag reader and the first antenna of the second tag reader. An interference zone is formed between the fourth antenna of the first tag reader and the third antenna of the second tag reader. An interference zone is formed between the second antenna of the third tag reader and the first antenna of the fourth tag reader. An interference zone is formed between the fourth antenna of the third tag reader and the third antenna of the fourth tag reader.

The antenna control unit 11 in the third embodiment does not simultaneously transmit LF radio waves from the plurality of antennas 1 corresponding to the plurality of radio wave ranges 19 forming the interference zone. For example, the antenna control unit 11 shifts the timing at which the LF radio wave is transmitted in the order of the first antenna, the second antenna, the third antenna, and the fourth antenna. At this time, the antenna control unit 11 is an antenna 1 connected to each different tag reader 2 and has four relative positions in the antenna 1 connected to the same tag reader 2. The timing at which the LF radio wave is transmitted from the antenna 1 is synchronized.

FIG. 12 is a diagram illustrating an operation example of the antenna control unit 11 according to the third embodiment. The horizontal axis in FIG. 12 represents time.

As shown in FIG. 12, the antenna control unit 11 synchronizes the timing at which the LF radio wave is transmitted from the first antenna of each tag reader 2. The antenna control unit 11 synchronizes the timing at which the LF radio wave is transmitted from the second antenna of each tag reader 2. The antenna control unit 11 synchronizes the timing at which the LF radio wave is transmitted from the third antenna of each tag reader 2. The antenna control unit 11 synchronizes the timing at which the LF radio wave is transmitted from the fourth antenna of each tag reader 2.

In the third embodiment, the antenna control unit 11 transmits the activation signal from the antenna 1 corresponding to the monitoring area adjacent to the area that is not the management area to which the monitoring area belongs to another management area. The activation signal is not transmitted from the antenna 1 corresponding to the area adjacent to the area that is not the other management area among the monitoring areas to which it belongs. Therefore, according to the third embodiment, it is possible to prevent radio wave interference from occurring in an interference zone between different management areas. Thereby, for example, a user in a management area where entry is permitted is not considered to have illegally entered. As a result, in addition to the same effects as those of the first and second embodiments, it is possible to prevent erroneous determination when the user does not intend to intrude.

The abnormality determination unit 15 according to the third embodiment, for example, determines that the user is in the boundary area when both the monitoring area C and the monitoring area J shown in FIG. 9 are detected as user existing areas within one second. Regardless, it is not determined to be abnormal. However, in this case, it cannot be determined whether the user is in the monitoring area C or the monitoring area J. When a plurality of monitoring areas continue to be detected as user presence areas for a preset time or longer, the notification unit 16 may issue an alarm to the administrator, for example. In this case, for example, the notification unit 16 may emit a warning sound and a voice announcement to the inside of the room.

In the first, second, and third embodiments, the entrance / exit management system is abnormal based on the identification information included in the response signal received by the antenna 1 corresponding to the monitoring area detected as the user presence area by the position detection unit 12. You may provide the imaging device which image | photographs the said monitoring area | region, when it determines with the determination part 15 being abnormal. For example, the imaging device may record at least one of a still image and a moving image. For example, the imaging device may be installed on a ceiling or a wall in a building corresponding to a management area or a monitoring area. According to the entrance / exit management system provided with the imaging device, an intruder can be specified when there is an illegal entry into the management area.

FIG. 13 is a hardware configuration diagram of the entrance / exit management device.

Each of the storage unit 5, the control unit 6, the antenna control unit 11, the position detection unit 12, the verification unit 13, the occupancy information update unit 14, the abnormality determination unit 15, the notification unit 16, and the area setting unit 17 in the entrance / exit management device 3. The function is realized by a processing circuit. The processing circuit may be dedicated hardware 50. The processing circuit may include a processor 51 and a memory 52. A part of the processing circuit is formed as dedicated hardware 50, and may further include a processor 51 and a memory 52. FIG. 13 shows an example where the processing circuit is partly formed as dedicated hardware 50 and includes a processor 51 and a memory 52.

When at least a part of the processing circuit is at least one dedicated hardware 50, the processing circuit may be, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC, an FPGA, or the like. The combination is applicable.

When the processing circuit includes at least one processor 51 and at least one memory 52, the storage unit 5, the control unit 6, the antenna control unit 11, the position detection unit 12, the verification unit 13, the occupancy information update unit 14, and the abnormality determination unit 15. Each function of the notification unit 16 and the area setting unit 17 is realized by software, firmware, or a combination of software and firmware. Software and firmware are described as programs and stored in the memory 52. The processor 51 reads out and executes the program stored in the memory 52, thereby realizing the function of each unit. The processor 51 is also referred to as a CPU (Central Processing Unit), a central processing unit, a processing unit, an arithmetic unit, a microprocessor, a microcomputer, and a DSP. The memory 52 corresponds to, for example, a nonvolatile or volatile semiconductor memory such as a RAM, a ROM, a flash memory, an EPROM, and an EEPROM, a magnetic disk, a flexible disk, an optical disk, a compact disk, a mini disk, and a DVD.

Thus, the processing circuit can realize each function of the entrance / exit management device 3 by hardware, software, firmware, or a combination thereof.

As described above, the present invention can be applied to a plurality of non-overlapping management areas set in a continuous space.

DESCRIPTION OF SYMBOLS 1 Antenna 2 Tag reader 3 Entrance / exit management apparatus 4 Center apparatus 5 Memory | storage part 6 Control part 7 Management area list 8 Entrance authority list 9 In-room information list 10 In-room number information 11 Antenna control part 12 Position detection part 13 Collation part 14 Present Room information update unit 15 Abnormality determination unit 16 Notification unit 17 Area setting unit 18 Hands-free tag 19 Radio wave range 50 Dedicated hardware 51 Processor 52 Memory

Claims

An antenna that is provided for each monitoring area belonging to each of a plurality of non-overlapping management areas, transmits an activation signal to the corresponding monitoring area, and receives a response signal including identification information from an identifier present in the corresponding monitoring area;
A position detection unit that detects a monitoring region corresponding to the antenna that has received the response signal as a user presence region;
When the identification information included in the response signal received by the antenna corresponding to the monitoring area detected as the user existing area is associated with the authority to enter the monitoring area in advance, the management to which the monitoring area belongs An occupancy information update unit that updates the number of people in the area;
Management to which the monitoring area belongs when the identification information included in the response signal received by the antenna corresponding to the monitoring area detected as the user presence area is not previously associated with the right to enter the monitoring area An abnormality determining unit that determines that the area is not abnormal when the number of people in the area is 0, and that does not determine that the area is not abnormal when the number of persons in the management area is not 0;
Entrance / exit management system with
The abnormality determination unit is one in which the identification information included in the response signal received by the antenna corresponding to the monitoring area detected as the user presence area is not associated with the entrance authority to the monitoring area in advance. When the number of people in the management area to which the area belongs is 0 and the monitoring area is adjacent to the area that is not the management area, the response signal including the identification information is continuously received for a predetermined number of times or more. Claim 1 that it is determined to be abnormal when received by an antenna, and is not determined to be abnormal when a response signal including the identification information is not continuously received by the antenna for a preset number of times. The entry / exit management system described.
While the activation signal is transmitted from the antenna corresponding to an area adjacent to the non-management area to which the monitoring area belongs, the monitoring area belonging to the other management area is not the other management area. The entrance / exit management system of Claim 1 or 2 provided with the antenna control part which does not transmit an activation signal from the antenna corresponding to an adjacent thing.
A storage unit for storing a management area list indicating antenna identification information for identifying an antenna corresponding to a monitoring area belonging to the management area in association with the management area;
An area setting unit for changing the contents of the management area list;
The entrance / exit management system of any one of Claim 1 to 3 provided with these.
Notification that issues an alarm to the administrator when the abnormality determination unit determines that the abnormality is based on the identification information included in the response signal received by the antenna corresponding to the monitoring region detected as the user presence region The entrance / exit management system of any one of Claim 1 to 4 provided with the part.
An imaging device that captures an image of the monitoring area when the abnormality determination unit determines that the abnormality is based on identification information included in a response signal received by an antenna corresponding to the monitoring area detected as a user presence area The entrance / exit management system of any one of Claim 1 to 5 provided.