JP7501183B2 - Entrance monitoring device and entrance monitoring method - Google Patents

Description

The present invention relates to an entrance monitoring device and an entrance monitoring method.

In recent years, the development of entry management systems using IC cards has been progressing with the aim of improving security. Patent Document 1 discloses technology related to an entry management device using IC cards. In the technology disclosed in Patent Document 1, an electric lock is unlocked when the personal data on an IC card read by a card reader matches the personal data in the unlocking permission data.

JP 2005-155232 A

In the technology disclosed in Patent Document 1, the electric lock is unlocked when the personal data on the IC card read by the card reader matches the personal data in the unlocking permission data. However, in such a system, for example, when the owner of the IC card unlocks the electric lock, there is a possibility of unauthorized entry, such as tailgating, where the owner of the IC card and a person without an IC card pass through the door together.

In view of the above problems, the object of the present invention is to provide an entrance monitoring device and an entrance monitoring method capable of monitoring unauthorized entry.

The entrance monitoring device according to one aspect of the present invention includes a data acquisition unit that acquires first data, which is entrance data of a person passing through an entrance and entering a predetermined area, a floor sensor that is provided at the entrance and detects the feet of a person passing through the entrance, and a monitoring unit that monitors the entrance status of the person at the entrance. The monitoring unit monitors the entrance status of the person at the entrance using the first data acquired by the data acquisition unit and second data, which is data related to the person's feet detected by the floor sensor.

The entrance monitoring method according to one aspect of the present invention includes the steps of acquiring first data, which is entrance data of a person passing through an entrance and entering a predetermined area, detecting the feet of the person passing through the entrance using a floor sensor provided at the entrance, and monitoring the entrance status of the person at the entrance. The monitoring step monitors the entrance status of the person at the entrance using the acquired first data and second data, which is data related to the person's feet detected by the floor sensor.

The present invention provides an entrance monitoring device and an entrance monitoring method capable of monitoring unauthorized entry.

1 is a block diagram for explaining an entrance monitoring device according to a first embodiment; FIG. 2 is a top view for explaining the entrance monitoring device according to the first embodiment; FIG. 2 is a top view for explaining the entrance monitoring device according to the first embodiment; FIG. 2 is a top view for explaining the entrance monitoring device according to the first embodiment; 5 is a diagram for explaining an example of data of the entrance monitoring device according to the first embodiment; FIG. FIG. 2 is a top view for explaining the entrance monitoring device according to the first embodiment; FIG. 2 is a top view for explaining the entrance monitoring device according to the first embodiment; FIG. 11 is a top view for explaining an entrance monitoring device according to a second embodiment. FIG. 11 is a top view for explaining an entrance monitoring device according to a second embodiment. FIG. 11 is a top view for explaining an entrance monitoring device according to a second embodiment. FIG. 11 is a diagram for explaining an example of data of the entrance monitoring device according to the second embodiment; FIG. 13 is a top view for explaining an entrance monitoring device according to a third embodiment. FIG. 13 is a top view for explaining an entrance monitoring device according to a third embodiment. FIG. 13 is a top view for explaining an entrance monitoring device according to a third embodiment. FIG. 11 is a block diagram for explaining an entrance monitoring device according to another embodiment.

<First embodiment>
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
Fig. 1 is a block diagram for explaining an entrance monitoring device according to embodiment 1. As shown in Fig. 1, the entrance monitoring device 1 according to the present embodiment includes a data acquisition unit 11, a floor sensor 12, a monitoring unit 13, and a notification unit 14.

Fig. 2 is a top view for explaining the entrance monitoring device according to the first embodiment. As shown in Fig. 2, the entrance monitoring device according to this embodiment is a device that monitors the status of a person who passes through an entrance 21 and enters a specified area 20. The entrance 21 is provided with a door 22. The entrance monitoring device 1 according to this embodiment shown in Fig. 1 is incorporated in a place where entrance monitoring is required as shown in Fig. 2. The specified area 20 is, for example, an area requiring security such as a building, inside a train station, inside a paid commercial facility such as a sports gym, dangerous areas such as manufacturing sites and construction sites, hospitals, welfare facilities, etc., but is not limited to these.

The data acquisition unit 11 shown in FIG. 1 acquires first data, which is entrance data of a person who passes through the entrance 21 (FIG. 2) and enters the specified area 20. For example, the data acquisition unit 11 is a card reader capable of reading data on an IC card 15. The IC card 15 contains identification information of the owner of the IC card 15. When the IC card 15 is held over the data acquisition unit 11, the data acquisition unit 11 acquires the identification information of the owner of the IC card 15 and information on the time when the IC card 15 was held over. In this way, the data acquisition unit 11 acquires information on the time when the person entered the specified area 20 and the person's identification information as entrance data (first data) of the person who passes through the entrance 21 and enters the specified area 20 (see FIG. 5). Hereinafter, the first data will also be referred to as "IC card data".

In this embodiment, the data acquisition unit 11 may use any device capable of acquiring the entrance data (first data) of a person who passes through the entrance 21 and enters the specified area 20. For example, a barcode containing the owner's identification information may be used instead of the IC card 15. In this case, a barcode reader may be used as the data acquisition unit 11. For example, the barcode may be displayed on the display of the owner's smartphone. The data acquisition unit 11 may also acquire the entrance data of the person entering using face authentication, fingerprint authentication, vein authentication, or the like. The data acquisition unit 11 may also be an entrance/exit management system (so-called smart lock) that transmits authentication information of the person entering and can control the locking from outside or remotely.

The floor sensor 12 is provided at the entrance 21 of the specified area 20, and detects the feet 31_1 to 31_4 (see FIG. 3) of people passing through the entrance 21. In the entrance monitoring device 1 according to this embodiment, the floor sensor 12 is used to acquire second data. The second data is data related to the person's feet detected by the floor sensor 12. For example, the second data includes the start time and end time of detection of the person's feet by the floor sensor 12 (see FIG. 5). Hereinafter, the second data is also referred to as "floor sensor data."

The floor sensor 12 can be configured, for example, using a sensor panel in which multiple detection cells that detect load are arranged in a matrix in the row and column directions. Such a sensor panel is disclosed in JP 2019-060622 A. The floor sensor 12 may also be a pressure-sensitive sheet using a piezoelectric element or a capacitance sensor using a capacitance detection element.

The location of the floor sensor 12 is not particularly limited as long as it is near the entrance 21 of the specified area 20. For example, the floor sensor 12 may be provided at least on either the side of the specified area 20 or the outside, with the door 22 as the reference point. Specifically, as shown in FIG. 2, the floor sensor 12 may be provided on the outside of the specified area 20. As shown in FIG. 6, a floor sensor 12_1 may be provided on the outside of the specified area 20, and a floor sensor 12_2 may also be provided on the side of the specified area 20. As shown in FIG. 7, the floor sensor 12_2 may also be provided only on the side of the specified area 20.

The monitoring unit 13 shown in FIG. 1 monitors the state of people entering through the entrance 21. That is, the monitoring unit 13 monitors the state of people entering through the entrance 21 using the first data (IC card data) acquired by the data acquisition unit 11 and the second data (floor sensor data) which is data related to the feet of people detected by the floor sensor 12.

Specifically, the monitoring unit 13 uses the floor sensor data to calculate the number of people passing through the entrance 21, and if the number of people based on the IC card data at a specified time is the same as the number of people calculated based on the floor sensor data at a specified time, it determines that this is normal. On the other hand, if the number of people based on the IC card data at a specified time differs from the number of people calculated based on the floor sensor data at a specified time, the monitoring unit 13 determines that this is abnormal.

The IC card data includes the time when the person entered the specified area 20 and the person's identification information, and the floor sensor data includes the detection start time and detection end time of the person's feet by the floor sensor 12. Therefore, the monitoring unit 13 can monitor the entry status of people at the entrance 21 by using the IC card data and floor sensor data in which the time of the IC card data falls between the detection start time and detection end time of the floor sensor data.

When calculating the number of people based on floor sensor data, the number of people can be found by grouping the detected feet of people. For example, the number of people can be found by grouping data on two feet whose distance from each other is within a specified range, and finding the number of pairs of feet in the group. Specifically, as shown in FIG. 3, the number of people can be found by grouping a person's right foot 31_1 and left foot 31_2.

The notification unit 14 shown in FIG. 1 notifies the abnormality when the monitoring unit 13 judges that an abnormality has occurred. The notification unit 14 can be configured using, for example, a speaker that generates an alarm sound, a display that displays an alarm message, or a light-emitting means that emits an alarm light. The notification unit 14 may also have a communication function that transmits the judgment information of the monitoring unit 13 to an external system or remotely.

Next, the operation of the entrance monitoring device 1 according to this embodiment will be explained with reference to Figures 3 to 5.

First, normal operation will be described. As shown in FIG. 3, when a person passes through entrance 21 to enter predetermined area 20, the person holds his/her own IC card 15 over data acquisition unit 11. As a result, data acquisition unit 11 acquires identification information of the owner of IC card 15 and the time when the person held IC card 15 over data acquisition unit 11. Specifically, as shown in FIG. 5, data acquisition unit 11 acquires time information "2020/03/01 21:04:53" and identification information (ID No.) "1000" as IC card data.

If the identification information ("1000") of the owner of the IC card 15 corresponds to the identification information of a person permitted to enter the specified area 20, the monitoring unit 13 unlocks the electronic lock on the door 22. This allows the owner of the IC card 15 to enter the specified area 20.

Furthermore, when a person passes through the entrance 21 to enter the specified area 20, the floor sensor 12 detects the feet 31_1 to 31_4 of the person passing through the entrance 21. At this time, the floor sensor 12 detects the detection start time and detection end time of the person's feet at the floor sensor 12 as floor sensor data. Specifically, as shown in FIG. 5, the detection start time "2020/03/01 21:04:51", the detection end time "2020/03/01 21:05:01", and the detection number "001" are acquired as floor sensor data.

The monitoring unit 13 also uses the floor sensor data to calculate the number of people passing through the entrance 21. In the example shown in FIG. 3, feet 31_1 to 31_4 belong to the same person, so the number of people passing through the entrance 21 is one. The monitoring unit 13 then compares the number of people based on the IC card data at a specified time with the number of people calculated based on the floor sensor data at a specified time, and determines whether or not there is an abnormality based on the comparison results. In the case shown in FIG. 3, the number of people based on the IC card data is one, and the number of people calculated based on the floor sensor data is one, so the monitoring unit 13 determines that it is normal.

In other words, because the time information of the IC card data, "2020/03/01 21:04:53", is included between the detection start time "2020/03/01 21:04:51" and the detection end time "2020/03/01 21:05:01" of the floor sensor data for detection number "001", the monitoring unit 13 determines that the number of people passing through the entrance 21 is one, and determines that this is normal. Note that the data corresponding to each detection number in the floor sensor data corresponds to data per person.

Next, the operation in an abnormal case will be described. As shown in FIG. 4, when a person 32 passes through the entrance 21 to enter a predetermined area 20, the person 32 holds his/her own IC card 15 over the data acquisition unit 11. As a result, the data acquisition unit 11 acquires the identification information of the owner of the IC card 15 and the time when the person 32 held the IC card 15 over the data acquisition unit 11. Specifically, as shown in FIG. 5, the data acquisition unit 11 acquires the time information "2020/03/01 21:07:30" and the identification information (ID No.) "2000" as IC card data.

If the identification information ("2000") of the owner (person 32) of the IC card 15 corresponds to the identification information of a person permitted to enter the specified area 20, the monitoring unit 13 unlocks the electronic lock on the door 22. This allows the owner (person 32) of the IC card 15 to enter the specified area 20.

Furthermore, when a person 32 passes through the entrance 21 to enter the specified area 20, the floor sensor 12 detects the feet of the person 32 passing through the entrance 21. At this time, the floor sensor 12 detects the detection start time and detection end time of the person's feet at the floor sensor 12 as floor sensor data. Specifically, as shown in FIG. 5, the detection start time "2020/03/01 21:07:26", the detection end time "2020/03/01 21:07:40", and the detection number "002" are acquired as floor sensor data.

Furthermore, in the case shown in FIG. 4, when person 32 passes through entrance 21 to enter predetermined area 20, floor sensor 12 detects that another person, person 33, passes through entrance 21. In this case, floor sensor 12 detects the detection start time and detection end time of the person's feet on floor sensor 12 as floor sensor data. Specifically, as shown in FIG. 5, detection start time "2020/03/01 21:07:28", detection end time "2020/03/01 21:07:42", and detection number "003" are acquired as floor sensor data.

The monitoring unit 13 uses the floor sensor data to calculate the number of people passing through the entrance 21. In the example shown in FIG. 4, the legs of person 32 and person 33 belong to different people, so the number of people passing through the entrance 21 is two. In other words, in the case shown in FIG. 4, person 33 enters after person 32, which is a so-called tailgating situation.

The monitoring unit 13 then compares the number of people based on the IC card data at a specified time with the number of people calculated based on the floor sensor data at a specified time, and determines whether or not there is an abnormality based on the results of these comparisons. In the case shown in Figure 4, the number of people based on the IC card data is 1, and the number of people calculated based on the floor sensor data is 2, so the monitoring unit 13 determines that there is an abnormality.

In other words, because the time information of the IC card data "2020/03/01 21:07:30" is included between the detection start time "2020/03/01 21:07:26" and the detection end time "2020/03/01 21:07:40" of the floor sensor data of detection No. "002", and between the detection start time "2020/03/01 21:07:28" and the detection end time "2020/03/01 21:07:42" of the floor sensor data of detection No. "003", the monitoring unit 13 determines that the number of people who passed through the entrance 21 is two, and determines that there is an abnormality. Note that the data corresponding to each detection number in the floor sensor data corresponds to data per person.

The notification unit 14 shown in FIG. 1 notifies the abnormality when the monitoring unit 13 determines that an abnormality has occurred. The notification unit 14 can be configured using, for example, a speaker that generates a warning sound, a display that displays a warning message, a light-emitting means that emits a warning light, etc.

As described above, the entrance monitoring device according to this embodiment uses the data acquisition unit 11 to acquire first data, which is entrance data of people who pass through the entrance 21 and enter the specified area 20. Also, the floor sensor 12 is used to detect the feet of people passing through the entrance 21. The monitoring unit 13 then monitors the state of people entering the entrance using the first data acquired by the data acquisition unit 11 and the second data, which is data related to the feet of people detected by the floor sensor 12.

In this manner, in this embodiment, the first data acquired using the data acquisition unit 11 and the second data acquired using the floor sensor 12 are used to monitor the state of people entering through the entrance 21. Therefore, for example, when an IC card holder unlocks the electric lock, it is possible to detect unauthorized entry, such as tailgating, in which an IC card holder and a person who does not own an IC card pass through the door together. Therefore, it is possible to provide an entry monitoring device and an entry monitoring method capable of monitoring unauthorized entry.

<Embodiment 2>
Next, a second embodiment of the present invention will be described. In the second embodiment, an entrance monitoring device capable of performing exit monitoring in addition to entrance monitoring will be described. Note that the basic configuration of the entrance monitoring device according to the second embodiment is the same as the entrance monitoring device 1 (see FIG. 1) described in the first embodiment, so duplicated explanations will be omitted as appropriate.

Figure 8 is a top view for explaining the entrance monitoring device according to the second embodiment. As shown in Figure 8, the entrance monitoring device according to this embodiment is a device for monitoring the status of people entering a specified area 20 through an entrance/exit 23 (see Figure 10), and the status of people exiting the specified area 20 to the outside through the entrance/exit 23 (see Figure 8). That is, in this embodiment, the entrance 21 described in the first embodiment is configured to be usable as the entrance/exit 23.

As shown in FIG. 8, data acquisition units 11_1 and 11_2 are card readers capable of reading data from IC cards 15. Data acquisition unit 11_1 is provided outside a predetermined area 20, and is a card reader that reads data from IC cards 15 when a person enters the predetermined area 20 (see FIG. 10). Data acquisition unit 11_2 is provided inside the predetermined area 20, and is a card reader that reads data from IC cards 15 when a person exits from the predetermined area 20 to the outside (see FIG. 8). Note that data acquisition units 11_1 and 11_2 correspond to data acquisition unit 11 in the block diagram shown in FIG. 1.

The data acquisition unit 11_1 acquires first data, which is entry data of a person who passes through the entrance/exit 23 and enters the specified area 20. Furthermore, the data acquisition unit 11_2 is configured to be able to acquire, as the first data, exit data of a person who passes through the entrance/exit 23 and exits the specified area 20 to the outside. The IC card 15 includes identification information of the owner of the IC card 15.

When the IC card 15 is held over the data acquisition units 11_1 and 11_2, they acquire the identification information of the owner of the IC card 15 and information on the time when the IC card 15 is held over. Thus, the data acquisition unit 11_1 acquires information on the time when the person entered the specified area 20, the person's identification information, and the type of entry/exit (entry) as the entry data (first data) of the person who enters the specified area 20 through the entrance/exit 23. In addition, the data acquisition unit 11_2 acquires information on the time when the person exited the specified area 20, the person's identification information, and the type of entry/exit (exit) as the exit data (first data) of the person who exits the specified area 20 to the outside through the entrance/exit 23 (see FIG. 11).

The floor sensor 12 is provided at the entrance 23 of the specified area 20, and detects the feet 35_1 to 35_4 of a person passing through the entrance 23. The example shown in FIG. 8 shows a state in which a person is exiting the specified area 20 to the outside, and shows an example in which the floor sensor 12 detects the feet 35_1 to 35_4 of the person exiting.

Figure 9 is a top view for explaining the entrance monitoring device according to this embodiment, and is a top view for explaining the floor sensor 12 in detail. In the entrance monitoring device according to this embodiment, the floor sensor 12 is configured to be able to detect the movement direction of a person who has passed the floor sensor 12. That is, the floor sensor data (second data) acquired using the floor sensor 12 includes information on the movement direction of the person who has passed the floor sensor 12, in addition to the detection start time and detection end time of the person's feet on the floor sensor 12 (see Figure 11).

As shown in FIG. 9, when determining the direction of movement of a person using the floor sensor 12 (floor sensor data), data of two feet whose distance from each other is within a predetermined range is grouped, and the feet of the grouped people are continuously tracked to determine the direction of movement of the person. For example, as shown in FIG. 9, grouped foot data 36_1 and grouped foot data 36_2 move over time in the direction of entry, so it can be determined that the people corresponding to foot data 36_1 and 36_2 are moving in the direction of entry. On the other hand, grouped foot data 37_1 and grouped foot data 37_2 move over time in the direction of exit, so it can be determined that the people corresponding to foot data 37_1 and 37_2 are moving in the direction of exit.

In addition, in this embodiment, the direction of movement of the person may be determined using the direction of movement of the center of gravity of the person's foot when the floor sensor 12 detects the person's foot. In other words, when a person walks, the person's foot touches the floor in the order from the heel to the toe, and the direction of movement of the person may be determined by detecting the direction of movement of the center of gravity of the foot at this time with the floor sensor 12.

In this embodiment, the monitoring unit 13 (see FIG. 1) monitors the entry and exit status of people at the entrance and exit 23. That is, the monitoring unit 13 monitors the entry and exit status of people at the entrance and exit 23 using IC card data (first data) acquired by the data acquisition units 11_1 and 11_2 and floor sensor data (second data) which is data related to people's feet detected by the floor sensor 12. At this time, the monitoring unit 13 further uses data related to the movement direction of people contained in the floor sensor data to monitor the entry and exit status of people at the entrance and exit 23.

Specifically, the monitoring unit 13 uses the floor sensor data to calculate the number of people passing through the entrance/exit 23, and determines that the number of people based on the IC card data at a specified time is normal if it is the same as the number of people calculated based on the floor sensor data at a specified time. On the other hand, the monitoring unit 13 determines that the number of people based on the IC card data at a specified time is abnormal if it is different from the number of people calculated based on the floor sensor data at a specified time. At this time, the monitoring unit 13 monitors the entry and exit status of people at the entrance/exit 23 using data in which the data regarding the direction of people's movement contained in the IC card data matches the data regarding the direction of people's movement contained in the floor sensor data.

Next, the operation of the entrance monitoring device according to this embodiment will be described with reference to Figures 8, 10, and 11. First, the operation under normal circumstances will be described. Note that, below, the operation under normal circumstances will be described using the operation when a person passes through the entrance/exit 23 and exits the specified area 20 to the outside.

As shown in FIG. 8, when a person passes through the entrance/exit 23 to exit the specified area 20 to the outside, the person holds his/her own IC card 15 over the data acquisition unit 11_2. As a result, the data acquisition unit 11_2 acquires the identification information of the owner of the IC card 15 and the time when the person holds the IC card 15 over the data acquisition unit 11_2. In this case, since the IC card 15 is held over the data acquisition unit 11_2, the entry/exit type of the IC card data is "exit." Specifically, as shown in FIG. 11, the data acquisition unit 11_2 acquires the time information "2020/03/01 21:04:49," the identification information (ID No.) "1000," and the entry/exit type "exit" as the IC card data.

If the identification information ("1000") of the owner of the IC card 15 corresponds to the identification information of a person permitted to exit from the specified area 20 to the outside, the monitoring unit 13 unlocks the electronic lock on the door 22. This allows the owner of the IC card 15 to exit from the specified area 20 to the outside.

Furthermore, when a person passes through the entrance/exit 23 and exits the specified area 20 to the outside, the floor sensor 12 detects the feet 35_1 to 35_4 of the person passing through the entrance/exit 23. At this time, the floor sensor 12 detects the detection start time and detection end time of the person's feet at the floor sensor 12 as floor sensor data. Furthermore, the floor sensor 12 acquires information regarding the movement direction of the person who passed through the floor sensor 12 (entry/exit type) (see FIG. 8). Specifically, as shown in FIG. 11, the detection start time "2020/03/01 21:04:51", the detection end time "2020/03/01 21:05:01", the detection No. "001", and the entry/exit type "exit" are acquired as floor sensor data.

The monitoring unit 13 also uses the floor sensor data to calculate the number of people passing through the entrance/exit 23. In the example shown in FIG. 8, feet 35_1 to 35_4 belong to the same person, so the number of people passing through the entrance/exit 23 is one. The monitoring unit 13 then compares the number of people based on the IC card data at a specified time with the number of people calculated based on the floor sensor data at a specified time, and determines whether or not there is an abnormality based on the comparison results. In the case shown in FIG. 8, the number of people based on the IC card data is one, the number of people calculated based on the floor sensor data is one, and the direction of movement of people (exit) in the IC card data and the direction of movement of people (exit) in the floor sensor data match, so the monitoring unit 13 determines that there is a normal state.

In other words, since the floor sensor 12 started detection within a certain time (for example, within 5 seconds) from the time information "2020/03/01 21:04:49" in the IC card data (detection start time "2020/03/01 21:04:51") and the direction of movement of people (exit) in the IC card data matches the direction of movement of people (exit) in the floor sensor data, the monitoring unit 13 determines that the number of people exiting the entrance/exit 23 is one, and thus determines that it is normal.

In the above explanation, as an example, the operation when a person passes through the entrance/exit 23 and exits the specified area 20 to the outside is described, but the above normal operation can be similarly applied when a person passes through the entrance/exit 23 and enters the specified area 20.

Next, the operation in an abnormal case will be described using FIG. 10. Below, the operation in an abnormal case will be described using the operation when a person passes through the entrance/exit 23 and enters the specified area 20.

As shown in FIG. 10, when a person 38 passes through an entrance/exit 23 to enter a predetermined area 20, the person 38 holds his/her own IC card 15 over the data acquisition unit 11_1. As a result, the data acquisition unit 11_1 acquires the identification information of the owner of the IC card 15 and the time when the person 38 held the IC card 15 over the data acquisition unit 11_1. Specifically, as shown in FIG. 11, the data acquisition unit 11_1 acquires the time information "2020/03/01 21:07:30", the identification information (ID No.) "2000", and the entry/exit type "Entry" as IC card data.

If the identification information ("2000") of the owner (person 38) of the IC card 15 corresponds to the identification information of a person permitted to enter the specified area 20, the monitoring unit 13 unlocks the electronic lock on the door 22. This allows the owner (person 38) of the IC card 15 to enter the specified area 20.

Furthermore, when a person 38 passes through the entrance/exit 23 to enter a predetermined area 20, the floor sensor 12 detects the feet of the person 38 passing through the entrance/exit 23. At this time, the floor sensor 12 detects the detection start time and detection end time of the person's feet at the floor sensor 12 as floor sensor data. The floor sensor 12 also detects the movement direction (entry/exit type) of the person who passed through the floor sensor 12. Specifically, as shown in FIG. 11, the detection start time "2020/03/01 21:07:26", the detection end time "2020/03/01 21:07:40", the detection number "002", and the entry/exit type "entry" are acquired as floor sensor data.

Furthermore, in the case shown in FIG. 10, when a person 38 passes through the entrance/exit 23 to enter a specified area 20, the floor sensor 12 detects that another person, a person 39, passes through the entrance/exit 23. In this case, the floor sensor 12 detects the detection start time and detection end time of the feet of the person 39 at the floor sensor 12 as floor sensor data. The floor sensor 12 also detects the movement direction (entry/exit type) of the person who passed the floor sensor 12. Specifically, as shown in FIG. 11, the detection start time "2020/03/01 21:07:28", the detection end time "2020/03/01 21:07:42", the detection number "003", and the entry/exit type "entry" are acquired as floor sensor data.

The monitoring unit 13 uses the floor sensor data to calculate the number of people passing through the entrance/exit 23. In the example shown in FIG. 10, the legs of person 38 and person 39 belong to different people, so the number of people passing through the entrance/exit 23 is two. In other words, in the case shown in FIG. 10, person 39 enters after person 38, which is a so-called tailgating situation.

The monitoring unit 13 then compares the number of people based on the IC card data at a specified time with the number of people calculated based on the floor sensor data at a specified time, and determines whether or not there is an abnormality based on the results of these comparisons. At this time, the monitoring unit 13 determines whether or not there is an abnormality using data in which the direction of people's movement (entry) in the IC card data matches the direction of people's movement (entry) in the floor sensor data. In the case shown in Figure 10, the number of people based on the IC card data is 1 person, and the number of people calculated based on the floor sensor data is 2 people, so the monitoring unit 13 determines that there is an abnormality.

In other words, since the time information "2020/03/01 21:07:30" of the IC card data is included between the detection start time "2020/03/01 21:07:26" and the detection end time "2020/03/01 21:07:40" of the floor sensor data of detection No. "002", and between the detection start time "2020/03/01 21:07:28" and the detection end time "2020/03/01 21:07:42" of the floor sensor data of detection No. "003", the monitoring unit 13 determines that the number of people passing through the entrance/exit 23 is two and determines that there is an abnormality. At this time, the monitoring unit 13 uses data in which the direction of movement of people (entry) in the IC card data and the direction of movement of people (entry) in the floor sensor data match to determine whether there is an abnormality. Note that the data corresponding to each detection number in the floor sensor data corresponds to data per person.

The notification unit 14 shown in FIG. 1 notifies the abnormality when the monitoring unit 13 determines that an abnormality has occurred. The notification unit 14 can be configured using, for example, a speaker that generates a warning sound, a display that displays a warning message, a light-emitting means that emits a warning light, etc.

The invention according to the present embodiment described above can perform exit monitoring in addition to entrance monitoring.

<Third embodiment>
Next, a third embodiment of the present invention will be described. In the third embodiment, an entrance monitoring device capable of performing exit monitoring in addition to entrance monitoring will be described. Note that the basic configuration of the entrance monitoring device according to the third embodiment is the same as the entrance monitoring device 1 (see FIG. 1) described in the first embodiment, so duplicated explanations will be omitted as appropriate.

Fig. 12 is a top view for explaining an entrance monitoring device according to the third embodiment. As shown in Fig. 12, the entrance monitoring device according to this embodiment is a device for monitoring the status of people entering a predetermined area 20 through an entrance 21 (see Fig. 13), and the status of people exiting the predetermined area 20 to the outside through an exit 24 (see Fig. 14). In other words, this embodiment is a configuration in which an exit 24 is added to the configuration described in the first embodiment.

As shown in FIG. 12, data acquisition units 11_1 and 11_2 are card readers capable of reading data from IC cards 15. Data acquisition unit 11_1 is provided outside a predetermined area 20, and is a card reader that reads data from IC cards 15 when a person enters the predetermined area 20. Data acquisition unit 11_2 is provided inside the predetermined area 20, and is a card reader that reads data from IC cards 15 when a person exits from the predetermined area 20 to the outside. Note that data acquisition units 11_1 and 11_2 correspond to data acquisition unit 11 in the block diagram shown in FIG. 1.

The data acquisition unit 11_1 acquires first data, which is entrance data of a person who passes through the entrance 21 and enters the specified area 20. The data acquisition unit 11_2 is also configured to be able to acquire, as third data, exit data of a person who passes through an exit 24 provided separately from the entrance 21 and exits the specified area 20 to the outside. The IC card 15 includes identification information of the owner of the IC card 15.

When the IC card 15 is held over the data acquisition units 11_1 and 11_2, they acquire the identification information of the owner of the IC card 15 and information on the time when the IC card 15 is held over. Thus, the data acquisition unit 11_1 acquires information on the time when the person entered the specified area 20, the person's identification information, and the type of entry/exit (entry) as entry data (first data) of a person who passes through the entrance 21 and enters the specified area 20. In addition, the data acquisition unit 11_2 acquires information on the time when the person exited the specified area 20, the person's identification information, and the type of entry/exit (exit) as exit data (third data) of a person who passes through the exit 24 and exits the specified area 20 to the outside.

The floor sensor 12_1 is provided at the entrance 21 of the specified area 20, and detects the feet 31_1 to 31_4 (see FIG. 13) of a person passing through the entrance 21. In the entrance monitoring device according to this embodiment, the floor sensor 12_1 is used to acquire data (floor sensor data) relating to the feet of a person passing through the entrance 21. For example, the floor sensor data includes the start time and end time of detection of the person's feet by the floor sensor 12_1. The floor sensor data may also include the type of entry/exit (entry).

The location of the floor sensor 12_1 is not particularly limited as long as it is near the entrance 21 of the specified area 20. For example, the floor sensor 12_1 may be provided at least on either the side of the specified area 20 or the outside, based on the door 22_1 (see Figures 6 and 7).

The floor sensor 12_2 (exit-side floor sensor) is provided at the exit 24 of the specified area 20, and detects the feet 35_1 to 35_4 (see FIG. 14) of people passing through the exit 24. In the entrance monitoring device according to this embodiment, the floor sensor 12_2 is used to acquire data (floor sensor data) relating to the feet of people passing through the exit 24. For example, the floor sensor data includes the start time and end time of detection of the person's feet by the floor sensor 12_2. The floor sensor data may also include the type of entry/exit (exit).

The location of the floor sensor 12_2 is not particularly limited as long as it is near the exit 24 of the specified area 20. For example, the floor sensor 12_2 may be provided at least on either the side of the specified area 20 or the outside, based on the door 22_2 (see Figures 6 and 7).

In this embodiment, the monitoring unit 13 (see FIG. 1) monitors the entry and exit status of people at the entrance 21 and the exit 24. That is, the monitoring unit 13 monitors the entry and exit status of people at the entrance 21 and the exit 24 using IC card data (first data) acquired by the data acquisition unit 11_1, IC card data (third data) acquired by the data acquisition unit 11_2, floor sensor data (second data) that is data on the feet of people detected by the floor sensor 12_1, and floor sensor data (fourth data) that is data on the feet of people detected by the floor sensor 12_2. At this time, the monitoring unit 13 may further use data on the movement direction of people included in the floor sensor data to monitor the entry and exit status of people at the entrance/exit 23.

Specifically, the monitoring unit 13 uses the floor sensor data to calculate the number of people passing through the entrance 21, and if the number of people based on the IC card data at a specified time is the same as the number of people calculated based on the floor sensor data at a specified time, it determines that this is normal. On the other hand, if the number of people based on the IC card data at a specified time differs from the number of people calculated based on the floor sensor data at a specified time, the monitoring unit 13 determines that this is abnormal.

Similarly, the monitoring unit 13 uses the floor sensor data to calculate the number of people passing through the exit 24, and if the number of people based on the IC card data at a specified time is the same as the number of people calculated based on the floor sensor data at a specified time, it determines that this is normal. On the other hand, the monitoring unit 13 determines that there is an abnormality if the number of people based on the IC card data at a specified time differs from the number of people calculated based on the floor sensor data at a specified time.

The basic operation of the entrance monitoring device in embodiment 3 is similar to the operation of the entrance monitoring device described in embodiments 1 and 2, so duplicate explanations will be omitted as appropriate.

The invention according to the present embodiment described above can perform exit monitoring in addition to entrance monitoring.

<Other embodiments>
Next, other embodiments of the present invention will be described.
Fig. 15 is a block diagram for explaining the entrance monitoring device 2 according to another embodiment. As shown in Fig. 15, the entrance monitoring device 2 according to another embodiment may include a door sensor 16, an imaging unit 17, and a display 18 in addition to the data acquisition unit 11, the floor sensor 12, the monitoring unit 13, and the notification unit 14.

The door sensor 16 is a sensor that detects the opening and closing of the door 22 (see FIG. 2). By providing the door sensor 16, it is possible to detect that a person has opened the door 22. For example, the monitoring unit 13 unlocks the electronic lock on the door 22 when the identification information of the owner of the IC card 15 corresponds to the identification information of a person permitted to enter the specified area 20. However, it is also assumed that the owner of the IC card 15 may not enter the specified area 20 for some reason even if the electronic lock is unlocked. In this embodiment, by providing the door sensor 16 that detects the opening and closing of the door 22, it is possible to reliably detect that a person has opened the door 22 and entered the specified area 20.

In addition, in this embodiment, as shown in FIG. 15, an imaging unit 17 and a display 18 may be provided. For example, the imaging unit 17 is configured to be able to capture an image of a person passing through the entrance 21 in FIG. 2. For example, the imaging unit 17 is a surveillance camera, and can continuously capture an image of a person passing through the entrance 21. The image captured by the imaging unit 17 is supplied to the monitoring unit 13.

The display 18 is a display that displays the image captured by the imaging unit 17. The image captured by the imaging unit 17 is supplied to the display 18 from the monitoring unit 13.

When the monitoring unit 13 determines that the entry status of people at the entrance 21 is abnormal, the monitoring unit 13 may display on the display 18 an image corresponding to the time when the abnormality was determined. In this way, when the image corresponding to the time when the abnormality was determined is selectively displayed on the display 18, the monitor monitoring the entrance 21 does not need to check all the images on the display 18, so the burden on the monitor can be reduced. Note that the imaging unit 17 may be provided not only at the entrance 21 shown in FIG. 2, but also at the entrance/exit 23 shown in FIG. 8 and the exit 24 shown in FIG. 12. This allows the status of the entrance/exit 23 and exit 24 to be checked on the display 18.

The present invention is not limited to the above-described embodiment, and can be modified as appropriate without departing from the spirit of the present invention. For example, the entrance monitoring device according to the present invention may be installed in multiple rooms. In this way, by installing the entrance monitoring device in multiple rooms, the entrance status (which may include the exit status) of multiple rooms can be managed collectively using the entrance monitoring device.

For example, by providing a data acquisition unit 11 and a floor sensor 12 in each room of a building and a monitoring unit 13 in a management room of the building, the entry status (which may include the exit status) of the building can be managed collectively in the management room. If the monitoring unit 13 is installed in a remote location away from the building, the building can be managed collectively in the remote location. If the data acquisition unit 11 and the floor sensor 12 are provided in each room of multiple buildings, the entry status (which may include the exit status) of multiple buildings can be managed collectively in a remote location.

In addition, by using the entrance monitoring device of the present invention to collect data on unauthorized entry (or unauthorized exit), it is possible to clarify the actual situation of unauthorized entry at a specific location.

The present invention has been described above in accordance with the above embodiment, but the present invention is not limited to the configuration of the above embodiment, and of course includes various modifications, alterations, and combinations that a person skilled in the art could make within the scope of the invention of the claims of this patent application.

1, 2 Entry monitoring device 11 Data acquisition unit 12 Floor sensor 13 Monitoring unit 14 Notification unit 15 IC card 16 Door sensor 17 Imaging unit 18 Display 20 Predetermined area 21 Entrance 22 Door 23 Entrance/exit 24 Exit 31_1 to 31_4, 35_1 to 35_4 Feet 32, 33, 38, 39 Person 36_1, 36_2, 37_1, 37_2 Feet data

Claims (9)

a data acquisition unit that acquires first data which is entry data of a person who passes through an entrance and enters a predetermined area;
a floor sensor provided at the entrance to detect the feet of a person passing through the entrance;
A monitoring unit that monitors the entry state of the person at the entrance,
The first data acquired by the data acquisition unit includes a time when the person entered the predetermined area and identification information of the person,
the second data being data relating to the person's feet detected by the floor sensor includes a detection start time and a detection end time of the person's feet by the floor sensor;
the monitoring unit monitors the entry state of the person at the entrance by using the first data and second data in which the time of the first data is included between the detection start time and the detection end time of the second data.
Entrance monitoring device. The monitoring unit is
Calculating the number of people passing through the entrance using the second data;
When the number of people based on the first data at a predetermined time differs from the number of people calculated based on the second data at the predetermined time, it is determined that an abnormality has occurred.
2. The entrance monitoring device according to claim 1. The entrance is configured to be usable as an entrance and exit,
The data acquisition unit is configured to further acquire, as the first data, exit data of a person passing through the entrance and exiting the predetermined area to the outside,
The floor sensor is configured to be capable of detecting the feet of a person passing through the entrance,
The monitoring unit monitors the exit state of the person at the entrance/exit using the first data acquired by the data acquisition unit and second data, which is data related to the feet of the person detected by the floor sensor.
3. An entrance monitoring device according to claim 1 or 2 . The second data includes information regarding a movement direction of a person passing through the floor sensor,
The monitoring unit monitors the state of exit of the person at the entrance/exit by further using data regarding a moving direction of the person included in the second data.
4. The entrance monitoring device according to claim 3 . The entrance is provided with a door,
The floor sensor is provided on at least one of the predetermined area side and the outside with respect to the door.
The entrance monitoring device according to any one of claims 1 to 4 . The data acquisition unit is configured to acquire, as third data, exit data of a person who passes through an exit provided separately from the entrance and exits from the specified area to the outside,
an exit-side floor sensor is provided at the exit to detect the feet of a person passing through the exit,
The monitoring unit monitors the exit state of the person at the exit using the third data acquired by the data acquisition unit and fourth data, which is data related to the feet of the person detected by the exit-side floor sensor.
3. An entrance monitoring device according to claim 1 or 2 . The entrance monitoring device according to claim 1 , further comprising a notification unit that notifies an abnormality when the monitoring unit determines that an abnormality has occurred. An imaging unit capable of imaging people passing through the entrance;
A display capable of displaying an image captured by the imaging unit,
When the monitoring unit determines that the entry state of the person at the entrance is abnormal, the monitoring unit displays an image corresponding to the time when the abnormality was determined on the display.
The entrance monitoring device according to any one of claims 1 to 7 . acquiring first data, the first data being entry data of a person passing through an entrance and entering a predetermined area;
Detecting the feet of a person passing through the entrance using a floor sensor provided at the entrance;
monitoring the entry status of the person at the entrance;
The acquired first data includes a time when the person entered the predetermined area and identification information of the person,
the second data being data relating to the person's feet detected by the floor sensor includes a detection start time and a detection end time of the person's feet by the floor sensor;
the monitoring step includes monitoring the entry state of the person at the entrance using the first data and second data, the time of the first data being included between the detection start time and the detection end time of the second data;
Entrance monitoring methods.

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