JP2022091192A - Detector, detection system, detection method, and program - Google Patents

Abstract

To provide a detector, a detection system, a detection method, and a program that can appropriately grasp the situation of a customer in a store.SOLUTION: A detector 1 according to the present disclosure comprises: an acquisition unit 11 that acquires field intensities measured by a plurality of beacons; and a detection unit 12 that detects the movement of a person between the plurality of beacons based on a temporal change of the acquired field intensities.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to detection devices, detection systems, detection methods, and programs.

A technique for utilizing position information acquired by using a beacon is known. Among them, in recent years, an indoor positioning technique using BLE (Bluetooth (registered trademark) Low Energy) communication has been known.
As an example of using BLE communication, for example, there is a system that provides information according to the customer's location information to a customer who visits a store such as a supermarket or a department store.

In such a system, the customer carries a mobile terminal such as a smartphone in which a dedicated application program (hereinafter referred to as an application) is installed. The system collects information about customer behavior via a dedicated app when a customer passes near a beacon installed at a key point in the store. The system collects data such as, for example, how the customer traveled to the sales floor and what kind of product was viewed.

By doing so, the store can use the collected data as a marketing reference. Further, for example, when a customer who is shopping passes near the beacon, a product notification, a discount coupon, or the like can be pushed to the customer's smartphone.

As a related technique, for example, Patent Document 1 discloses a management server that processes position information of a terminal operated by a beacon. This management server has a transmission / reception unit for transmitting / receiving signals, a mobile terminal ID for the mobile terminal, and a control unit for receiving the beacon terminal ID for the beacon terminal broadcasted by the beacon terminal from the mobile terminal. The control unit generates first position information indicating the estimated position of the mobile terminal in relation to the mobile terminal ID and the beacon terminal ID. Further, the control unit generates content information based on the first position information and controls the content information so as to be transmitted to the mobile terminal.

With such a configuration, the management server disclosed in Patent Document 1 mobiles content information such as public transportation usage information, product discount information, or coupon information related to the estimated position (or expected route) of the mobile terminal. It can be transmitted to the terminal.

Japanese Unexamined Patent Publication No. 2017-188904

In the technique disclosed in Patent Document 1, the customer needs to have a mobile terminal such as a smartphone in order to receive a signal transmitted from the beacon terminal. In addition, the mobile terminal must have a dedicated application installed. However, customers may not have the dedicated app installed on their mobile devices because they happened to drop in at these stores, are not interested in coupons, and so on. In some cases, the customer does not own the mobile terminal itself.

Since the store can only acquire the information of the customer who has the dedicated application installed, there is a possibility that the information acquired by using the dedicated application may differ from the actual situation in the store. For example, when grasping the number of customers in a store, there is a possibility that the number of customers acquired using a dedicated application and the number of customers actually visiting the store may differ. In particular, in a sales floor where many customers, such as the elderly and children, do not have mobile terminals, there is a risk that the gap between the two will increase.

In such a case, the store cannot correctly grasp information such as how the customer is moving in the store or in which area of the store the customer is gathered.
Patent Document 1 does not consider such a problem.

This disclosure is made to solve such a problem, and provides a detection device, a detection system, a detection method, and a program capable of appropriately grasping the situation of a customer in a store. The purpose.

The detection device according to the present disclosure is
An acquisition unit that acquires the radio field strength measured by each of multiple beacons,
It is provided with a detection unit for detecting the movement of a person between the plurality of beacons based on the time change of the acquired radio wave intensity.

The detection system for this disclosure is
With the detector
A plurality of beacons that measure the radio wave strength of the received radio wave and transmit the measurement result to the detection device.
Equipped with
The detection device is
An acquisition unit that acquires the radio field strength measured by each of the plurality of beacons, and
It has a detection unit for detecting the movement of a person between the plurality of beacons based on the time change of the acquired radio wave intensity.

The detection method according to the present disclosure is
The acquisition step to acquire the signal strength measured by each of multiple beacons,
It includes a detection step for detecting the movement of a person between the plurality of beacons based on the time change of the acquired radio wave intensity.

The program related to this disclosure is
The acquisition step to acquire the signal strength measured by each of multiple beacons,
A computer is made to perform a detection step of detecting the movement of a person between the plurality of beacons based on the time change of the acquired radio wave intensity.

The detection device, detection system, detection method, and program according to the present disclosure make it possible to appropriately grasp the situation of customers in the store.

It is a block diagram which shows the structure of the detection apparatus which concerns on Embodiment 1. FIG. It is a block diagram which shows the structure of the detection system which concerns on Embodiment 2. It is a block diagram which shows the structure of the handset which concerns on Embodiment 2. It is a block diagram which shows the structure of the master unit which concerns on Embodiment 2. FIG. It is a block diagram which shows the structure of the server which concerns on Embodiment 2. In the detection system according to the second embodiment, it is an example of the radio wave intensity measured by each beacon when there is no obstacle between the beasons. It is a figure which shows the state when the passerby crosses between the beacons in the detection system which concerns on Embodiment 2. FIG. It is a figure which shows the time deviation of the radio wave intensity between the beacons at each measurement point in the detection system which concerns on Embodiment 2. FIG. It is a flowchart which shows the processing of the server which concerns on Embodiment 2. It is a figure which shows the example of the hardware composition of the server which concerns on Embodiment 2. FIG.

<Embodiment 1>
Hereinafter, embodiments of the present disclosure will be described with reference to the drawings.
FIG. 1 is a block diagram showing a configuration of a detection device according to the present disclosure. As shown in the figure, the detection device 1 includes an acquisition unit 11 and a detection unit 12.
The acquisition unit 11 acquires the radio field intensity measured by each of the plurality of beacons.
The detection unit 12 detects the movement of a person between a plurality of beacons based on the time change of the acquired radio wave intensity.

In the present embodiment, the detection device 1 acquires the radio field intensity measured by each of the plurality of beacons. The detection device 1 detects the movement of a person between a plurality of beacons based on the time change of the acquired radio wave intensity.
By doing so, the detection device 1 can detect the movement of the customer between the plurality of beacons regardless of whether or not the customer in the store has a mobile terminal on which the dedicated application is installed. Therefore, according to the detection device 1, the situation of the customer in the store can be appropriately grasped.

<Embodiment 2>
The second embodiment is a specific example of the first embodiment described above.
FIG. 2 is a block diagram showing a configuration of the detection system 1000 according to the present embodiment. As shown in the figure, the detection system 1000 includes a server S1, a master unit P1, and slave units N1 to N8.

The server S1 corresponds to the detection device of the first embodiment shown in FIG. Further, the master unit P1 and the slave units N1 to N8 correspond to the plurality of beacons of the first embodiment. In the following, each of the master unit P1 and the slave units N1 to N8 may be described simply as a beacon.

The server S1 is connected to the master unit P1 via the LAN cable 60. Not limited to this, the server S1 may be connected to the master unit P1 in a communicable manner by wire or wirelessly. The server S1 acquires the radio field strength measured by each of the master unit P1 and the slave units N1 to N8 via the master unit P1. The server S1 detects the movement of a person between the master unit P1 and the slave units N1 to N8 based on the acquired change in radio field intensity over time.

As shown in FIG. 2, the master unit P1 and the slave units N1 to N8 construct a flood-type mesh network utilizing Bluetooth mesh with each other by BLE communication. Each of the master unit P1 and the slave units N1 to N8 communicates with each other via the mesh link 50.

Each of the master unit P1 and the slave units N1 to N8 broadcasts a signal including a beacon ID that identifies the beacon to the other beacons. Each of the master unit P1 and the slave units N1 to N8 receives radio waves from other beacons and measures the radio wave strength of the received radio waves. Each of the master unit P1 and the slave units N1 to N8 stores the measurement result of the radio field strength in the internal database as the radio wave strength information in association with the date and time information indicating the measured date and time and the beacon ID.

The slave units N1 to N8 transmit the accumulated radio field strength information to the master unit P1. The master unit P1 stores the radio field strength information received from the slave units N1 to N8 in an internal database together with the radio wave strength information including the radio field strength measured by itself.

The master unit P1 transmits the accumulated radio field strength information to the server S1 at predetermined time intervals. The server S1 detects the movement of a person between each beacon by using the received radio field strength information. Further, the server S1 analyzes the movement of a person using the received radio wave intensity information, and acquires the analysis result. The analysis result may include information on the position where a person exists, the movement route of a person, or information on a place where people are crowded.

In the present embodiment, an example in which the master unit P1 and the slave units N1 to N8 construct a mesh network will be described, but the network configuration is not limited to this. As the network configuration, various configurations capable of detecting the time change of the radio field intensity between the beacons may be used. For example, a network configuration such as a star type, a ring type, or a full connect type may be used.

Further, the number of master units and slave units is not limited to the above. Two or more master units may be provided, and a plurality of slave units may be connected to each master unit. Nine or more slave units may be provided.

In the present embodiment, the case where the detection system 1000 is used in a store such as a supermarket will be described. In the detection system 1000, when an obstacle that hinders the propagation of radio waves exists between the beasons, the radio wave intensity of the radio waves received by each beacon is lowered. Obstacles may include, for example, a person (hereinafter referred to as a customer) or an object who shop in a store. Further, when an obstacle moves from between the beasons, the radio wave intensity of the radio wave received by each beacon increases. The detection system 1000 detects the movement of the customer between the beasons based on the time variation of the radio field intensity measured in each beacon.

The environment in which the detection system 1000 is used is not limited to a supermarket, but may include the interior of various stores such as department stores, convenience stores, and private shops. Not limited to this, the detection system 1000 may be used in various environments where it is required to grasp the number of customers, the flow line of customers, the needs of customers for products, and the like. Further, the detection system 1000 may be used not only indoors but also outdoors. For example, the detection system 1000 may be used at an outdoor event or the like held for a limited time.

FIG. 3 is a block diagram showing the configuration of the slave units N1 to N8 shown in FIG. Each of the slave units N1 to N8 has the same configuration as the slave unit N shown in FIG. The slave unit N corresponds to the beacon of the first embodiment.

As shown in FIG. 3, the slave unit N includes a BLE transmission / reception unit 110 and a control unit 120.
The BLE transmission / reception unit 110 includes a reception unit 111 and a transmission unit 112.
The receiving unit 111 receives radio waves from another beacon. The receiving unit 111 outputs the radio wave information of the received radio wave to the BLE control unit 123.

The transmission unit 112 broadcasts a signal including the beacon ID to other beacons.
The transmission unit 112 transmits the radio field strength information stored in the database unit 121 to the master unit P1 (see FIG. 2) together with its own beacon ID. The transmission unit 112 may transmit radio field strength information to the master unit P1 via another slave unit N.

The control unit 120 includes a BLE control unit 123, a measurement unit 122, and a database unit 121.
The BLE control unit 123 controls the communication of the BLE transmission / reception unit 110. The BLE control unit 123 outputs the radio wave information received from the reception unit 111 to the measurement unit 122.
The BLE control unit 123 receives the measurement result of the radio field strength from the measurement unit 122. The BLE control unit 123 associates the received measurement result, the date and time information of the measured date and time, and the beacon ID of the beacon of the transmission destination of the received radio wave, and outputs the radio wave strength information to the database unit 121.

The measuring unit 122 receives radio wave information from the BLE control unit 123 and measures the radio wave strength of the received radio wave. The measurement unit 122 outputs the measurement result to the BLE control unit 123.
The database unit 121 temporarily stores the radio field strength information received from the BLE control unit 123.

FIG. 4 is a block diagram showing the configuration of the master unit P1 shown in FIG. The master unit P1 corresponds to the beacon of the first embodiment, like the slave unit N (see FIG. 3). As shown in FIG. 4, the master unit P1 includes a BLE transmission / reception unit 210, a control unit 220, and a LAN transmission / reception unit 230.
The BLE transmission / reception unit 210 and the control unit 220 correspond to the BLE transmission / reception unit 110 and the control unit 120 of the slave unit N described with reference to FIG. 3, respectively.

The BLE transmission / reception unit 210 includes a reception unit 211 and a transmission unit 212.
The receiving unit 211 receives radio waves from another beacon. The receiving unit 211 outputs the radio wave information of the received radio wave to the BLE control unit 223.
The receiving unit 211 receives the radio field strength information from the slave units N1 to N8, and outputs the received radio wave strength information to the BLE control unit 223.

The transmission unit 212 broadcasts a signal including the beacon ID to other beacons.

The control unit 220 includes a BLE control unit 223, a measurement unit 222, and a database unit 221.
The BLE control unit 223 controls the communication of the BLE transmission / reception unit 210. The BLE control unit 223 outputs the radio wave information received from the reception unit 211 to the measurement unit 222.
The BLE control unit 223 receives the measurement result of the radio field strength from the measurement unit 222. The BLE control unit 223 associates the received measurement result, the date and time information of the measured date and time, and the beacon ID of the beacon of the transmission destination of the received radio wave, and outputs the radio wave strength information to the database unit 221.
Further, the BLE control unit 223 outputs the radio field intensity information received from the slave units N1 to N8 received from the reception unit 211 to the database unit 221.

The measuring unit 222 receives radio wave information from the BLE control unit 223 and measures the radio wave strength of the received radio wave. The measurement unit 222 outputs the measurement result to the BLE control unit 223.

The database unit 221 temporarily stores the radio field strength information received from the BLE control unit 223.
Further, the database unit 221 temporarily stores the radio field strength information received from the slave units N1 to N8 received from the BLE control unit 223.

The LAN transmission / reception unit 230 transmits the radio field strength information of the master unit P1 and the slave units N1 to N8 stored in the database unit 221 to the server S1 at predetermined time intervals.

FIG. 5 is a block diagram showing the configuration of the server S1. As shown in the figure, the server S1 includes an acquisition unit 310, a detection unit 320, and a storage unit 330. The server S1 corresponds to the detection device 1 of the first embodiment shown in FIG.

The acquisition unit 310 acquires the radio field intensity measured by each of the plurality of beacons. The acquisition unit 310 acquires the radio field strength information received from the master unit P1 and the slave units N1 to N8 via the master unit P1. The acquired radio wave strength information includes at least the measurement result of the radio wave strength in each beacon, the date and time information of the measured date and time, and the beacon ID of the beacon to which the received radio wave is transmitted.

Further, the installation locations of the master unit P1 and the slave units N1 to N8 are stored in the storage unit 330 in association with the beacon ID. Therefore, the acquisition unit 310 can acquire information on the installation location of each beacon based on the beacon ID included in the radio wave intensity information by referring to the storage unit 330.

FIG. 6 is a table showing an example of the radio wave intensity measured by each beacon when there is no obstacle between the beacons of the master unit P1 and the slave units N1 to N8. The node names on the horizontal axis shown in FIG. 6 represent each beacon. The vertical axis shows how strong the radio waves received from the surrounding beacons are at each node shown on the horizontal axis. For beacons that are not adjacent to each other, the display of radio field strength is omitted.

As an example, the slave unit N3 will be described. The slave unit N3 receives a radio wave from a beacon existing around the slave unit N3, and measures the intensity of the received radio wave. A master unit P1, a slave unit N1, N4, N6, and N7 exist around the slave unit N3. The intensity of the radio wave received by the slave unit N3 from the master unit P1 is −55 dBm. Similarly, the strength of the radio waves received by the slave unit N3 from each of the slave units N1, N4, N6, and N7 is −70 dBm, −60 dBm, −55 dBm, and −70 dBm.

The acquisition unit 310 (see FIG. 5) acquires radio wave intensity information in advance when there is no obstacle, as shown in FIG. 6, and stores it in the storage unit 330. The detection unit 320 performs the processing described below with reference to this radio field intensity information.

Returning to FIG. 5, the explanation will be continued. The detection unit 320 detects the movement of a person between a plurality of beacons based on the time change of the acquired radio wave intensity.

FIG. 7 is a diagram showing a state when a passerby M1 crosses between the beacons. The passerby M1 is, for example, a customer who moves in the store.
As shown by the arrow in the figure, it is assumed that the passerby M1 moves between the beacons. The passerby M1 interferes with the propagation of radio waves transmitted from the plurality of beacons on the moving path. Therefore, the movement of the passerby M1 affects the measured radio field intensity in the beacon located around the movement path.

As shown in FIG. 7, the intersection of the passerby M1 and the mesh link 50 between the beacons on the route on which the passerby M1 moves is referred to as a measurement point for explanation. The acquisition unit 310 can acquire radio wave intensity information when the passerby M1 is present at each of the measurement points A to G from the beacons around each point. Further, the detection unit 320 can detect the movement of the passerby M1 between the plurality of beacons based on the time change of the radio wave strength included in the acquired radio wave strength information.

The measurement point is not limited to the mesh link 50 and may be provided at any point. Further, FIG. 7 shows only the mesh link 50 between adjacent beas, but is not limited to this. For example, the movement of the passerby M1 may be detected by using the mesh link 50 between the handset N3 and the handset N8 that are not adjacent to each other.

Further, in the present embodiment, the description will be given using the case where there is only one passerby, but the present embodiment is not limited to this. There may be multiple passersby. Further, the passerby M1 is not limited to the customer of the store. The passerby M1 may include a person such as an employee who moves in the store.

FIG. 8 is a diagram showing the time shift of the radio wave intensity between the beacons at the measurement points A to G shown in FIG. 7. In FIG. 8, the radio wave strength between the beacons indicates the radio wave strength of each other's radio waves received by the two beasons. For example, in the figure, "radio wave strength between N3-N6" is the radio wave intensity of the handset N6 received and measured by the handset N3, and the radio wave of the handset N3 received and measured by the handset N6. The radio field strength of. The radio field strengths of the other party received and measured by the slave unit N3 and the slave unit N6 may be different. In that case, for example, the radio field strength corrected for the difference between the two may be used as the radio wave strength between the slave units N3-N6.

The detection unit 320 (see FIG. 5) detects that a person has moved between the beacons when the radio field intensity between the beacons decreases. Further, the detection unit 320 detects that a person has moved from between the plurality of beacons when the radio wave intensity between the plurality of beacons increases.
Here, the detection unit 320 detects the movement of the passerby M1 on the mesh link 50 based on the time change of the radio wave intensity on the mesh link 50 between the plurality of beacons.

For example, it is assumed that the passerby M1 passes through the measurement point A located between the slave units N3-N6. At this time, an obstacle called a passerby M1 is generated between the slave units N3-N6. Therefore, the radio wave intensity between the slave units N3-N6 temporarily decreases from the original −55 dBm to −60 dBm. Therefore, the detection unit 320 detects that the passerby M1 has moved between the slave units N3-N6.

Further, it is assumed that the passerby M1 has moved from the measurement point A to the measurement point B located between the slave units N3-N7. At this time, the radio field strength between the slave units N3-N6 increases from −60 dBm to −55 dBm and returns to the initial radio wave strength. Therefore, the detection unit 320 detects that the passerby M1 has moved from between the slave units N3-N6.

Even if the detection unit 320 estimates the movement path of a person based on the time change of the position where the decrease in the radio wave strength occurs when the decrease in the radio wave strength occurs continuously among a plurality of surrounding beacons. good.
For example, in the example in which the passerby M1 described above moves from the measurement point A to the measurement point B, the radio wave intensity of the slave unit N3-N6 increases from -60 dBm to -55 dBm, and the radio wave between the slave units N3-N7. The strength has decreased from -70 dBm to -75 dBm. Therefore, the decrease in radio field strength occurs between the slave units N3 and N6, and then continuously occurs between the slave units N3 and N7. Therefore, the detection unit 320 estimates that the passerby M1 has moved from the measurement point A to the measurement point B. The detection unit 320 may estimate the movement route by using the time change of the radio wave intensity at the measurement point where the radio wave intensity has increased.

The movement from the measurement point B to the measurement point G can be considered in the same manner as described above. When the passerby M1 moves, the radio wave intensity increases on the mesh link 50 before the movement, and the radio wave intensity decreases on the mesh link 50 after the movement. The position where the decrease in radio wave strength occurs continuously changes from the measurement point B to the measurement point G with the passage of time.

Therefore, the detection unit 320 can estimate the movement route of the passerby M1 based on the time change of the position where the decrease in the radio wave intensity occurs. In the above example, the detection unit 320 estimates that the passerby M1 has moved from the measurement point A via each measurement point of the measurement point G.

The detection unit 320 may estimate the movement route of the passerby M1 in consideration of the time change of the position where the radio wave intensity is increased in addition to the time change of the position where the radio wave intensity is increased. When the increase and decrease of the radio wave strength occur simultaneously among a plurality of beacons existing in the vicinity, the detection unit 320 has a plurality of beacons in which the radio wave intensity has decreased from among the plurality of beacons in which the radio wave intensity has increased. In addition, it is estimated that the person has moved.

For example, as described above, when the passerby M1 moves from the measurement point A to the measurement point B, the radio field intensity decreases between the slave units N3-N7, but at the same time, the radio wave intensity between the slave units N3-N6 decreases. Rise. Therefore, the detection unit 320 can estimate that the passerby M1 has moved from between the beacons where the radio wave intensity has increased to between the beacons where the radio wave intensity has decreased. The detection unit 320 may estimate as described above when the distance between the beacons whose radio wave intensity has increased and the beacons whose radio wave intensity has decreased is equal to or less than a predetermined distance. By doing so, it is possible to estimate the movement route of the passerby M1 between the measurement points only within the range in which the passerby M1 can move.

Even if there is a difference in the date and time of occurrence of the increase and decrease of the radio field strength, the detection unit 320 determines that the increase and decrease of the radio wave intensity have occurred at the same time if the difference in the occurrence date and time is within a predetermined time. May be good.

If the decrease in radio field intensity is not continuous between some beacons, the detection unit 320 may estimate the movement route of the passerby M1 in consideration of the non-continuous portion. For example, when there are many passersby, it is considered that the decrease in radio field strength may not be continuous. In such a case, the detection unit 320 may estimate the movement route of the passerby M1 by complementing the portion where the decrease in the radio wave intensity is interrupted by considering the decrease in the radio wave intensity at the surrounding measurement points. good.

The detection unit 320 may detect that the passerby M1 stays at the same position. The detection unit 320 detects that the passerby M1 stays at a certain measurement point when the state in which the radio wave intensity is lowered continues for a predetermined time. By doing so, for example, it is possible to detect a sales floor in which the passerby M1 is interested.

The detection unit 320 may specify by back-calculating where the passerby M1 has passed by using the information of the measurement point where the radio wave intensity is lowered on the mesh link 50. The detection unit 320 calculates, for example, the moving speed of the passerby M1 based on the time change of the position where the decrease in the radio wave intensity occurs. The detection unit 320 identifies a position where the passerby M1 has passed in the past based on the calculated movement speed. By doing so, it is possible to grasp the tendency of the movement route of the passerby M1.

The detection unit 320 may detect a position where passersby are crowded based on the degree of decrease in the radio field strength on the mesh link 50. For example, when the radio wave intensity between the plurality of beacons falls below the threshold value, the detection unit 320 determines that the passersby are concentrated and detects the congestion of the passersby.

The threshold value for determining the density may be set by using the radio wave strength when there is no obstacle at all, or may be set based on a predetermined state. The threshold value may be set by using, for example, the radio field intensity at the time of average congestion of the store. Further, different threshold values may be set for each measurement point. By doing so, it is possible to judge the congestion situation under different conditions for each sales floor. In addition, the obtained information can be utilized for marketing for each sales floor and appropriate staffing for each sales floor.

In addition, considering the congestion situation in the store, it is possible to distribute coupons to customers who have installed the application on the mobile terminal. Therefore, for example, in a place where the crowd of people is remarkable, it is possible to make adjustments such as suspending the delivery of coupons. In addition, by distributing coupons for sales floors that are not crowded with people, it is possible to encourage them to move to the sales floor.

In the above description, the detection unit 320 detects the movement of the passerby M1 based on the time change of the radio wave intensity between the two beacons, but the present invention is not limited to this. The detection unit 320 may perform the same processing between three or more beacons. By doing so, the movement of the passerby M1 can be detected more accurately.

The storage unit 330 stores the beacon ID and the location where the beacon is installed in association with each other. The location of the beacon may be an absolute position (for example, longitude and latitude) or a relative position.
The storage unit 330 stores the radio field intensity information of each beacon acquired by the acquisition unit 310. The storage unit 330 stores in advance the radio field strength between the beasons when there is no obstacle between the beasons.

FIG. 9 is a flowchart showing the processing performed by the server S1. The acquisition unit 310 (see FIG. 5) acquires radio field strength information including the radio field strength measured by each of the master unit P1 and the slave units N1 to N8 (step S101). The radio wave strength information includes the radio wave strength measured by each beacon, the date and time information of the measured date and time, and the beacon ID of the beacon to which the received radio wave is transmitted.

The detection unit 320 detects the movement of a person between the master unit P1 and the slave units N1 to N8 based on the time change of the acquired radio wave intensity (step S102). The detection unit 320 detects that a person has moved between the beacons when the radio field intensity between the beacons is reduced. Further, the detection unit 320 detects that a person has moved from between the beacons when the radio wave intensity between the beacons increases. The detection unit 320 may estimate the movement path of a person based on the time change of the position where the radio wave intensity changes. Further, the detection unit 320 may detect the congestion of people depending on the degree of decrease in the radio wave intensity.

The server S1 may generate display information for displaying the detection result and output the generated display information to a display device (not shown) or the like. By doing so, for example, the store manager can grasp the number of customers, the flow line, the congestion status, etc. in the store in real time.

As described above, in the detection system 1000 according to the present embodiment, the movement of a person between the beacons is detected based on the time change of the radio field intensity measured by each of the master unit P1 and the slave units N1 to N8. Can be done. By doing so, even for a customer who does not have a mobile terminal on which a dedicated application is installed, it is possible to grasp the movement status of each customer without acquiring accurate location information.

Further, the detection system 1000 can estimate the customer's movement route based on the time shift of the position where the radio wave strength changes when the radio wave strength is continuously lowered between the surrounding beacons. Further, the detection system 1000 can grasp the place where the customer is concentrated by grasping the degree of decrease in the radio wave strength and the movement route of the customer.

Therefore, according to the detection system 1000, the situation of the customer in the store can be appropriately grasped. The store manager can utilize the information obtained in this way for marketing and the like.

<Hardware configuration example>
Each functional component such as the server S1 may be realized by hardware that realizes each functional component (eg, a hard-wired electronic circuit, etc.), or a combination of hardware and software (eg, electronic). It may be realized by a combination of a circuit and a program that controls it). Hereinafter, a case where each functional component such as the server S1 is realized by a combination of hardware and software will be further described.

FIG. 10 is a block diagram illustrating a hardware configuration of a computer 500 that realizes a server S1 or the like. The computer 500 may be a dedicated computer designed to realize the server S1 or the like, or may be a general-purpose computer. The computer 500 may be a portable computer such as a smartphone or a tablet terminal.

For example, by installing a predetermined application on the computer 500, each function such as the server S1 is realized on the computer 500. The above application is composed of a program for realizing a functional component such as a server S1.

The computer 500 includes a bus 502, a processor 504, a memory 506, a storage device 508, an input / output interface 510, and a network interface 512. The bus 502 is a data transmission path for the processor 504, the memory 506, the storage device 508, the input / output interface 510, and the network interface 512 to transmit and receive data to and from each other. However, the method of connecting the processors 504 and the like to each other is not limited to the bus connection.

The processor 504 is various processors such as a CPU (Central Processing Unit), a GPU (Graphics Processing Unit), or an FPGA (Field-Programmable Gate Array). The memory 506 is a main storage device realized by using RAM (Random Access Memory) or the like. The storage device 508 is an auxiliary storage device realized by using a hard disk, an SSD (Solid State Drive), a memory card, a ROM (Read Only Memory), or the like.

The input / output interface 510 is an interface for connecting the computer 500 and the input / output device. For example, an input device such as a keyboard and an output device such as a display device are connected to the input / output interface 510.

The network interface 512 is an interface for connecting the computer 500 to the network. This network may be a LAN (Local Area Network) or a WAN (Wide Area Network).

The storage device 508 stores a program (a program that realizes the above-mentioned application) that realizes each functional component such as the server S1. The processor 504 reads this program into the memory 506 and executes it to realize each functional component such as the server S1.

Each of the processors executes one or more programs including instructions for causing the computer to perform the algorithm described with reference to the drawings. This program can be stored and provided to a computer using various types of non-transitory computer readable medium. Non-temporary computer-readable media include various types of tangible storage media. Examples of non-temporary computer readable media are magnetic recording media (eg, flexible discs, magnetic tapes, hard disk drives), optomagnetic recording media (eg, optomagnetic discs), CDs (compact discs), or DVDs (digital versatile). Includes optical disk media such as disk) and semiconductor memory (eg, mask ROM, PROM (Programmable ROM), EPROM (Erasable PROM), flash ROM, RAM). The program may also be provided to the computer by various types of transient computer readable media. Examples of temporary computer readable media include electrical, optical, and electromagnetic waves. The temporary computer-readable medium can supply the program to the computer via a wired communication path such as an electric wire and an optical fiber, or a wireless communication path.

The present disclosure is not limited to the above embodiment, and can be appropriately modified without departing from the spirit.

For example, in the above explanation, the explanation is given using a customer who does not have a mobile terminal on which a dedicated application is installed, but the explanation is not limited to this. The customer may have a mobile terminal on which a dedicated application is installed. The detection system according to the present disclosure may be used in combination with the dedicated application. For example, while acquiring the location information of a customer who has a mobile terminal on which a dedicated application is installed, information on the flow or congestion status of other customers may be acquired.

Further, in the above description, the server performs the detection process, but the present invention is not limited to this. For example, the master unit P1 may perform the processing performed by the server S1 by ensuring sufficient computing performance for the master unit P1 of the second embodiment shown in FIG.

1 Detection device 11 Acquisition unit 12 Detection unit 50 Mesh link 60 LAN cable 110 BLE transmission / reception unit 111 Reception unit 112 Transmission unit 120 Control unit 121 Database unit 122 Measurement unit 123 BLE control unit 210 BLE transmission / reception unit 211 Reception unit 212 Transmission unit 220 Control Unit 221 Database unit 222 Measurement unit 223 BLE control unit 230 LAN transmission / reception unit 310 Acquisition unit 320 Detection unit 330 Storage unit 500 Computer 502 Bus 504 Processor 506 Memory 508 Storage device 510 Input / output interface 512 Network interface 1000 Detection system M1 Passerby N, N1 to N8 slave unit P1 master unit S1 server

Claims (10)

An acquisition unit that acquires the radio field strength measured by each of multiple beacons,
A detection device including a detection unit that detects the movement of a person between the plurality of beacons based on the time change of the acquired radio wave intensity. The detector is
When the radio wave intensity between the plurality of beacons is lowered, it is detected that the person has moved between the plurality of beacons, and the person is detected.
The detection device according to claim 1, wherein when the radio wave intensity between the plurality of beacons increases, the person moves from between the plurality of beacons. The detector is
1 Or the detection device according to 2. The detector is
When the increase and decrease of the radio wave intensity occur simultaneously among the plurality of beasons existing in the vicinity, the plurality of beacons in which the decrease of the radio wave intensity occurs among the plurality of beacons in which the increase of the radio wave intensity occurs. The detection device according to any one of claims 1 to 3, which presumes that the person has moved in the meantime. The detector is
The detection device according to any one of claims 1 to 4, which detects the congestion of people when the radio wave intensity between the plurality of beacons falls below a threshold value. The multiple beacons form a mesh network and
The detection according to any one of claims 1 to 5, wherein the detection unit detects the movement of the person on the mesh link based on the time change of the radio wave intensity on the mesh link between the plurality of beacons. Device. With the detector
A plurality of beacons that measure the radio wave strength of the received radio wave and transmit the measurement result to the detection device.
Equipped with
The detection device is
An acquisition unit that acquires the radio field strength measured by each of the plurality of beacons, and
A detection system including a detection unit that detects the movement of a person between the plurality of beacons based on the time change of the acquired radio wave intensity. The detector is
When the radio wave intensity between the plurality of beacons is lowered, it is detected that the person has moved between the plurality of beacons, and the person is detected.
The detection system according to claim 7, wherein when the radio wave intensity between the plurality of beacons increases, the person moves from between the plurality of beacons. The acquisition step to acquire the signal strength measured by each of multiple beacons,
A detection method comprising a detection step for detecting the movement of a person between the plurality of beacons based on the time change of the acquired radio wave intensity. The acquisition step to acquire the signal strength measured by each of multiple beacons,
A program that causes a computer to perform a detection step of detecting the movement of a person between the plurality of beacons based on the time change of the acquired radio wave intensity.

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