JP6504002B2 - Induction program, control device, and induction method - Google Patents

Description

  The present invention relates to an induction program, a control device, and an induction method.

  In recent years, with the spread of mobile terminals such as smartphones and tablets, and the development of wireless LANs in public places, users are increasingly communicating using mobile terminals. However, since a user who uses a mobile terminal in a crowded environment may cause an accident or the use of the mobile terminal may be a nuisance to others in a public place, measures have also been considered.

  For example, a wireless terminal communication control device that controls whether communication with the outside is enabled for a part of communication performed by a terminal carried by a passenger in the vehicle such as a train with the outside according to the degree of congestion of the vehicle Has been proposed (eg, Patent Document 1). There is also proposed an apparatus for generating a background image using a plurality of thinned frames and extracting a mobile person from the difference between the captured image and the background image to obtain the congestion status of the area being imaged (for example, Patent document 2 etc.). Furthermore, position information at which the wireless communication apparatus exists is acquired, and information on the position of the second base station of a communication system different from the first base station to which the wireless communication apparatus is connected is displayed on the screen of the wireless communication apparatus. There has also been proposed an information processing apparatus that performs control for the purpose (for example, Patent Document 3).

JP, 2008-193602, A JP, 2010-277547, A JP, 2013-168916, A

  At a station's home, etc., passengers are likely to gather near a specific entrance, and accidents are likely to occur in crowded areas, so it is desirable that congestion be alleviated. In addition, not only in the station yard, but also in shelters and event venues when disasters occur, there is a tendency for an accident to occur more easily when people gather at a specific place.

  The present invention, in one aspect, aims at alleviating congestion in a given area.

  In one aspect, the guidance program is executed by a controller. The control device is configured to use a crowded area and a user of a terminal located in the crowded area from the plurality of areas based on the congestion state of each of the plurality of areas specified from image data obtained by imaging a plurality of areas. Determine the destination area. The control apparatus specifies an access point corresponding to the congested area with reference to a storage unit that stores a correspondence between each of the plurality of areas and each of the plurality of access points. The control device executes communication control for prompting the terminal communicating with the identified access point to move to the guidance destination area.

  Congestion in a predetermined area can be alleviated.

It is a figure explaining the example of the control method concerning an embodiment. It is a figure explaining the example of the control method concerning an embodiment. It is a figure explaining an example of composition of a control device. It is a figure explaining the example of the hardware constitutions of a control device. It is a figure explaining the example of the congestion condition of a home. It is a figure explaining the example of a surveillance image database. It is a figure explaining the example of a processing database. It is a flowchart explaining the example of the identification method of the congestion condition of each imaging area. It is a figure explaining the example of a terminal database in connection. It is a flowchart explaining the example of the processing performed with a control device. It is a flowchart explaining the example of the processing for congestion reduction. It is a figure explaining the example of control processing. It is a figure explaining the example of control processing. It is a figure explaining the example of control to the terminal which starts a session.

  FIG. 1 is a diagram for explaining an example of a control method according to the embodiment. The control system according to the embodiment includes the access point 10 (10a, 10b), the imaging device 15, the control device 30, and the wireless LAN controller 25. These devices are connected via the network 20. . The imaging device 15 includes a camera and a communication device. Both the imaging device 15 and the access point 10 are installed in an area where occurrence of congestion is expected. The wireless LAN controller 25 controls the access point 10. Further, each access point 10 is connected to a terminal 5 included in the communication area of the access point 10. In the example shown in FIG. 1, the terminal 5a is connected to the access point 10a, and the terminal 5b and the terminal 5c are connected to the access point 10b. The control device 30 acquires information of each terminal 5 by communicating with the terminals 5 connected to each access point 10, and stores the information in association with the access point 10 to which each terminal 5 is connected. I assume.

  In procedure P1, the imaging device 15 periodically images the communication area of each access point 10, and transmits the obtained image data to the control device 30 together with information identifying the area to be imaged. The control device 30 calculates the congestion state of the area in which each access point 10 is installed, using the image data. In FIG. 1, it is assumed that the communication area of the access point 10a is not crowded and the communication area of the access point 10b is crowded.

  The control device 30 identifies the terminal 5 connected to the access point 10b, and generates a display request for displaying a message recommending the user of the identified terminal 5 to move to a non-congested area. For example, the control device 30 can include in the display request a message notifying the area in which the access point 10a is installed as a movement destination. In the example of FIG. 1, since the terminal 5b is connected to the access point 10b, the control device 30 transmits a display request to the terminal 5b (procedure P2). When the terminal 5b receives the display request, the terminal 5b displays a message whose display is requested by the display request on the display device included in the terminal 5b.

  In the example of FIG. 1, since the terminal 5c is also connected to the access point 10b, the control device 30 also transmits a display request to the terminal 5c (procedure P3). When the terminal 5c also receives the display request, the terminal 5c displays, on the display device of the terminal 5c, a message whose display is requested by the display request. In each terminal 5, the display by the display request may be set to be displayed for a predetermined period determined in advance.

  It is assumed that the user of the terminal 5b has moved to the communication area of the access point 10a by the display of a message recommending the movement of the access point 10a to the communication area of the terminal 5b or 5c. Thereafter, the imaging device 15 images the communication area of the access point 10a and the access point 10b, and similarly transmits image data to the control device 30. At this time, when no congestion occurs to recommend the user to move in any communication area, the control device 30 does not notify.

  FIG. 2 is a diagram for explaining an example of a control method according to the embodiment. The system shown in FIG. 2 is similar to the system shown in FIG. Also in the case of FIG. 2, the imaging device 15 images the communication area of each access point 10 as in the case of FIG. 1, associates the image data with the information of the area to be imaged and transmits it to the control device 30 (procedure P11).

  In the case of FIG. 2, in the communication area of the access point 10b, it is assumed that it is desirable for a person to move out of the communication area of the access point 10b because of heavy congestion. Furthermore, since congestion occurs also in the access point 10a, it is not desirable to recommend moving from the communication area of the access point 10b to the communication area of the access point 10a.

  In this case, the control device 30 decides to stop transmission of user data from the access point 10 b to the network 20 in order to guide the movement of the user of the terminal 5 from the communication area of the access point 10 b. The control device 30 notifies the wireless LAN controller 25 to stop transmission and reception of user data via the access point 10b (procedure P12). In response to the request from the control device 30, the wireless LAN controller 25 requests the access point 10b to disconnect the connection with the terminal 5 (procedure P13).

  The access point 10 b disconnects the connection with the terminal 5 in response to a request from the wireless LAN controller 25. Then, the user of the terminal 5 b or the terminal 5 c fails in communication using the terminal 5 in use. Therefore, it is expected that the users of the terminals 5b and 5c move away from the communication area of the access point 10b and move to the communication area of another access point 10.

  As described above, the control device 30 specifies the congestion status of each area by using the captured image in the target area for which the congestion degree is to be alleviated, and then, for the terminal 5 located in the heavy congestion area. Send a request to display a message recommending the user to move. In addition, when the area where the movement is recommended is not specified, the control device 30 causes the access point 10 in the congested area to disconnect the connection with the terminal 5 to move the user to the communication area of another access point 10. To create a situation that is easy to do. Therefore, congestion is alleviated in the area where the system according to the embodiment is installed.

  Note that FIG. 2 is an example, and the control target of the control device 30 is not limited to the wireless LAN controller 25. For example, when the communication device or the access point 10 in the network 20 can change the processing of the packet or the like according to the notification from the control device 30, the control device 30 can request control of these devices. In this case, the control device 30 may request the access point 10b to disconnect the connection so that the communication via the access point 10b located in the congested area is disconnected. The control device 30 may also request that devices in the network 20 discard packets transferred through the access point 10b.

<Device configuration>
FIG. 3 is a diagram for explaining an example of the configuration of the control device 30. As shown in FIG. The control device 30 includes a communication unit 31, a control unit 40, and a storage unit 50. The communication unit 31 includes a transmission unit 32 and a reception unit 33. The control unit 40 includes a determination unit 41, an acquisition unit 42, a specification unit 43, and a notification processing unit 44. The storage unit 50 stores a monitoring image database 51, a processing database 52, and a connected terminal database 53.

  The transmission unit 32 transmits a packet to another device such as the terminal 5, the imaging device 15, and the wireless LAN controller 25. The receiving unit 33 receives packets from other devices such as the terminal 5, the imaging device 15, and the wireless LAN controller 25.

  The determination unit 41 analyzes the image data transmitted from the imaging device 15 to calculate the degree of congestion of each area, and determines the area to be processed to reduce the congestion. The acquisition unit 42 acquires information of the terminal 5 connected to each access point 10. The identifying unit 43 identifies the terminal 5 that is the destination of the display request for relieving congestion. The notification processing unit 44 performs processing for giving a notification to the terminal 5, such as generation of a display request addressed to the terminal 5, when transmitting a display request to alleviate congestion. The notification processing unit 44 also performs notification processing addressed to the wireless LAN controller 25.

  The monitoring image database 51 holds information used to obtain the degree of congestion for each area from image data. The monitoring image database 51 further stores an identifier of the area notified from the imaging device 15 that has captured each image data, and information that associates the access point 10 located in the area associated with the identifier. The processing database 52 associates a threshold for use in determining the degree of congestion with the content of processing according to the degree of congestion classified by each threshold. The connected terminal database 53 stores information on the terminals 5 connected to each access point 10. Specific examples of the monitoring image database 51, the processing database 52, and the connected terminal database 53 will be described later.

  FIG. 4 shows an example of the hardware configuration of the control device 30. The control device 30 includes a processor 101, a memory 102, a bus 105, and a network interface 109. The control device 30 may further include one or more of the input device 103, the output device 104, the storage device 106, and the portable storage medium drive device 107.

  The processor 101 is an arbitrary processing circuit including a central processing unit (CPU), and can execute a program stored in the memory 102 or the storage device 106. The processor 101 implements the control unit 40. The memory 102 operates as the storage unit 50. The communication unit 31 is realized by the network interface 109 and the processor 101. The bus 105 connects the processor 101, the memory 102, the input device 103, the output device 104, the storage device 106, the portable storage medium drive device 107, and the network interface 109 so that they can mutually transmit and receive data.

  The input device 103 is any device used to input information, such as a keyboard and a mouse, and the output device 104 is any device used to output data, such as a display device including a display. The portable storage medium driving device 107 can output data of the memory 102 and the storage device 106 to the portable storage medium 108, and can read a program, data, and the like from the portable storage medium 108. Here, the portable storage medium 108 can be any portable storage medium, including Compact Disc Recordable (CD-R) and Digital Versatile Disk Recordable (DVD-R).

Embodiment
Hereinafter, an example of the embodiment will be described by taking the case where the control system is used to alleviate congestion at the station home.

  FIG. 5 is a diagram for explaining an example of a home congestion state. In the example of FIG. 5, the access points 10 (10a to 10d) and the imaging devices 15 (15a and 15b) are installed at the home. Hereinafter, it is assumed that identifiers of CA01 and CA02 are assigned to the imaging device 15a and the imaging device 15b, respectively. Further, identifiers such as AP01 for the access point 10a, AP02 for the access point 10b, AP03 for the access point 10c, and AP04 for the access point 10d are assigned.

  In the example of FIG. 5, the access point 10a is installed so that the vicinity of the first entrance enters the communication area. Similarly, the access point 10b is installed near the second entrance, the access point 10c near the third entrance, and the access point 10d near the fourth entrance in the communication area. The imaging device 15a can image the area A1 and the area A2, and the imaging device 15b can image the area A3 and the area A4. The communication area of the access point 10a overlaps with the area A1, and the communication area of the access point 10b overlaps with the area A2. Similarly, the communication area of the access point 10c overlaps with the area A3, and the communication area of the access point 10d overlaps with the area A4.

  Although FIG. 5 illustrates an example in an area where four entrances from the first entrance to the fourth entrance are installed, the number of home entrances and access points installed at the home will be described. The number of 10 and the number of imaging devices 15 may be arbitrarily changed according to the implementation.

  Hereinafter, taking the case where the control system according to the embodiment is installed as shown in FIG. 5 as an example, the processing performed in the control system will be described as a method of specifying the congestion status, a method of acquiring information of the connected terminal 5, congestion It divides into the processing for relief and explains.

(1) Method of Identifying Congested Situation The imaging device 15a and the imaging device 15b periodically capture an image of an imageable area. In the example of FIG. 5, there are many passengers in the vicinity of the 1st entrance and the 2nd entrance, and there are relatively few passengers in the vicinity of the 3rd entrance and the 4th entrance. For this reason, the image data of the area A1 and the area A2 is an image in a relatively crowded state. On the other hand, the image data of the area A3 and the area A4 is data obtained by imaging the situation when the user is not relatively crowded. Each imaging device 15 transmits the image data to the control device 30 in association with the identifier of the area that is the imaging target of the image data. Each imaging device 15 may also notify the control device 30 of the identifier of its own device in association with the image data.

The control device 30 receives the image data from the imaging device 15 by the receiving unit 33. In the following description, it is assumed that the control device 30 acquires the following combination of an area identifier and image data from the imaging device 15a.
Area identifier = A1, image data = A1 001. jpg
Area identifier = A2, image data = A2_001. jpg
Also, similarly, it is assumed that the control device 30 acquires the following combination of the identifier of each area and the image data from the imaging device 15b.
Area identifier = A3, image data = A3_001. jpg
Area identifier = A4, image data = A4 001. jpg
The receiving unit 33 outputs the combination of the image data and the identifier of the area to the determining unit 41.

  The determination unit 41 acquires, from the monitoring image database 51, information used for analysis of image data. Furthermore, the determination unit 41 and the notification processing unit 44 use the monitoring image database 51 to specify the installation state of the imaging device 15 and the access point 10 in the area imaged as image data.

  FIG. 6 is a view for explaining an example of the monitoring image database 51. As shown in FIG. The monitoring image database 51 includes a monitoring camera ID, an area ID, an initial image, an access point ID, and a boarding hole. The monitoring camera ID is an identifier assigned to the imaging device 15 that captures an image. The area ID is an identifier of an area which is an imaging target. The initial image is image data obtained by imaging the area to be imaged with the imaging device 15 identified by the surveillance camera ID of the entry when the home is unmanned. The access point ID is an identifier assigned to the access point 10 whose communication area overlaps with the area in entry. A boarding hole is information on a boarding hole located closest to the area under entry.

  For example, it is read from the first entry of the monitoring image database 51 shown in FIG. 6 that the image data of the area A1 is acquired by the imaging device 15a of the monitoring camera ID = CA01. The fact that the area A1 overlaps with the communication area of the access point 10a of the access point ID = AP01, and that it is located near the first entrance is also shown in the first entry of the monitoring image database 51. There is. Furthermore, the image data obtained when the imaging device 15a captures an area A1 while the area A1 is unmanned is AP01. It is jpg. Similarly, the determination unit 41 and the notification processing unit 44 appropriately use the other entries in the monitoring image database 51 to determine the positions of the imaging device 15, the access point 10, and the entrance, and the positional relationship of the area to be imaged. Can be identified. Furthermore, the determination unit 41 determines that the image data obtained when the imaging device 15a captures the area A2 while the area A2 is unmanned is AP02. It can be recognized that it is stored as jpg. Similarly, when the area A3 is unmanned, the determination unit 41 determines that the image data obtained by imaging the area A3 by the imaging device 15b is AP03. image data when the imaging device 15b captures the area A4 when the area A4 is unmanned are AP04. We can recognize that it is jpg.

  Therefore, the determination unit 41 determines that the area identifier = A1, the image data = A1_001. In order to process the combination of jpg, AP01. Read jpg. The determination unit 41 sets the input image data = A1_001, the initial image AP01. By comparing jpg, the ratio of the area in which the two different objects appear to the area of the whole image is calculated. That is, in the image data, the determination unit 41 specifies an area of the scene that is disappearing from the initial image to be compared as an area having a difference. After calculating the ratio of the area having a difference between the image data and the initial image to the entire image, the determination unit 41 refers to the processing database 52.

  FIG. 7 is a view for explaining an example of the processing database 52. As shown in FIG. The processing database 52 associates the ratio of the area having a difference between the image data and the initial image to the entire image and the process to be performed on the area. Hereinafter, in order to make it easy to read, the ratio of the area having a difference between the image data and the initial image to the entire image may be referred to as “difference ratio”.

  The processing database 52 includes a ratio, a danger level, a first process, and a second process. The ratio is the ratio of the difference obtained from the image data to be processed and the initial image of the region to be processed. The danger level is a value representing the degree of danger of the area, but also represents the degree of congestion of each area estimated from the rate of difference. That is, since the greater the congestion, the more likely an accident will occur, and the greater the proportion of the difference, the greater the degree of risk. In the example of FIG. 7, the risk level is 1 when the percentage of difference is 30% or less, and the risk level is 2 when the percentage of difference is 31 to 50%. Furthermore, the risk level is 3 when the percentage of the difference is 51 to 80%, and the risk level is 4 when the percentage of the difference is 81% or more. Note that, in the example of FIG. 7, the larger the value of the danger level, the higher the degree of danger of the area.

  The first process is the contents of the process that is preferentially applied to the area in accordance with the ratio of the difference. An area with a danger level of 1 is an area that is not crowded and in which it is desirable to move people from other areas in order to alleviate congestion in other areas. For this reason, the area of danger level = 1 is set as the guide destination. Areas with a danger level = 2 are not as crowded as it is desirable to move people to other areas, but not as loosely as it is desirable to move people from other areas. For this reason, no particular processing is performed on the area of danger level = 2. Areas with danger levels = 3 and 4 are both crowded to the extent that it is desirable to move people to other areas. For this reason, in the area where the risk level is 3 or 4, notifying the guidance to another area is set as the first process.

  The second process is a process to be performed on the area of danger level = 3 and 4 when the area of danger level = 1 is not detected. The area with danger level = 3 and the area with danger level = 4 are both crowded, so it is desirable to move the people in that area to other areas, but the congestion degree is for the area with danger level = 4 It is more intense than the area with a danger level = 3. Therefore, in the area of danger level = 4, the possibility of occurrence of an accident caused by congestion is higher than the area of danger level = 3. Therefore, it is set that the access point 10 is requested to close the connection with the connected terminal 5 for the access point 10 with the dangerous level = 4. Hereinafter, the case where the first process is applied will be described. The case of using the second process will be described later.

  For example, the determination unit 41 sets image data as a result of imaging the area A1 = A1_001. About jpg, initial image AP01. Suppose that it is determined that the percentage of difference with jpg is 60%. Then, the determination unit 41 refers to the processing database 52, and determines the area A1 to be a notification area for notification because the area A1 is congested.

  The determination unit 41 performs the same process on other areas. For example, image data of area A2 = A2_001. About jpg, initial image AP02. Suppose that the percentage of difference with jpg is 90%. In this case, since the determination unit 41 is also congested in the area A2, the determination unit 41 determines the area as a notification area. On the other hand, image data of area A3 = A3_001. About jpg, initial image AP03. Assume that the percentage difference with jpg is 10%. In this case, the determination unit 41 determines the area A3 as a guide destination from another area. Furthermore, image data of area A4 = A4_001. About jpg, initial image AP04. Assume that the percentage difference with jpg is 35%. In this case, the determination unit 41 determines not to perform the process for the area A4.

  FIG. 8 is a flowchart for explaining an example of a method of specifying the congestion status of each imaging area. The determination unit 41 periodically acquires an image of each area via the reception unit 33 (step S1). The determination unit 41 compares the acquired image with an initial image obtained by imaging the same area as the image (step S2). The determination unit 41 obtains the ratio of the difference with the initial image for each area (step S3). The determination unit 41 determines the process to be applied to each area by using the obtained difference ratio (step S4). In step S4, the process recorded as the first process in the process database 52 is specified as the process to be applied to the area.

(2) Acquisition Method of Information of Terminal 5 in Connection Next, an example of a method in which the control device 30 acquires information of the terminal 5 connected to the access point 10 installed in the station yard will be described.

  Each access point 10 periodically outputs information (AP information) that can be used by the terminal 5 attempting to establish a connection with the access point 10. Therefore, when the user holds the terminal 5 and enters the station yard, the terminal 5 receives the signal transmitted from the access point 10.

  It is assumed that the terminal 5 previously stores information such as an SSID (Service Set Identifier) used for communication with the access point 10 installed in the station yard. The terminal 5 performs processing for establishing a connection with the access point 10 using the AP information received from the access point 10, the SSID stored in advance, and the like. At this time, the terminal 5 notifies the access point 10 of the MAC address assigned to itself. On the other hand, the access point 10 notifies the terminal 5 of the information of the control device 30. When the information of the control device 30 is notified, the terminal 5 notifies the control device 30 of the information of the terminal 5 itself. The information notified from the terminal 5 to the control device 30 includes a terminal ID assigned to the terminal 5, a MAC address, an identifier of the access point 10 of the connection destination, and the like.

  The acquisition unit 42 in the control device 30 receives the notification of the terminal 5 via the reception unit 33. The acquisition unit 42 records the information notified from the terminal 5 in the connected terminal database 53. The acquiring unit 42 periodically accesses the access points 10 to update the information of the terminals 5 connected to the access point 10. The acquisition unit 42 also records information obtained by communication with the access point 10 in the connected terminal database 53.

  FIG. 9 is a diagram for explaining an example of the terminal database 53 during connection. The connected terminal database 53 shown in FIG. 9 includes an access point ID, a terminal ID, and an address of the terminal 5. Hereinafter, the case where the address is a MAC address will be described as an example, but when the terminal 5 notifies the control device 30 of the IP address assigned to the own device, the terminal database 53 for connection is assigned to the terminal 5 An IP address may be recorded. The connection status of each terminal 5 can be specified by using the terminal database 53 during connection. For example, the terminals 5 d to 5 f are all connected to the access point 10 a identified by AP 01. Also, the address of the terminal 5d is xx. xx. xy. xx. xx. xx, and the address of the terminal 5e is yy. yy. xx. xx. It is zz. Also, the address of the terminal 5f is ab. cd. xy. xx. yy. It is zz.

(3) Processing for Alleviation of Congestion FIG. 10 is a flowchart for explaining an example of processing performed by the control device 30. An example of processing performed by the control device 30 after the user carrying the terminal 5 enters the station yard will be described with reference to FIG. FIG. 10 is an example, and the process of step S13 may be performed before step S11.

  The acquisition unit 42 of the control device 30 receives the notification of the connection to the wireless LAN in the station yard from the terminal 5 of the user via the reception unit 33 (step S11). The acquisition unit 42 records information of the terminal 5 in the connected terminal database 53 in association with the access point 10 to which the terminal 5 is connected (step S12). The determination unit 41 analyzes the image data transmitted from the imaging device 15 to determine whether the area for notifying the guidance has been detected (step S13). If the area for notifying the guidance has not been detected, the processing after step S11 is repeated (No in step S13). When the area for notifying the guidance is detected, processing for reducing congestion is performed (Yes in step S13, step S14).

  FIG. 11 is a flowchart for explaining an example of processing for relieving congestion. FIG. 11 shows in detail an example of the process performed in step S14 of FIG. An application method of the first process in the process database 52 and an example of the process when the second process is used will be described with reference to FIG. First, the case where the first process is applied will be described with reference to steps S21 to S25.

  In the determination unit 41, when the area for notifying the guidance is specified, the specifying unit 43 specifies the access point 10 associated with the area for notifying the guidance using the monitoring image database 51 (step S21). Here, the access point 10 identified by the access point ID associated with the guidance notification area forms a communication area overlapping the guidance notification area. For example, in the example of FIG. 5, the area A1 and the area A2 are specified as the areas for notifying the guidance. In this case, using the monitoring image database 51 (FIG. 6), the specifying unit 43 specifies that the area A1 overlaps the communication area of the access point 10a identified by AP01. Similarly, the identifying unit 43 also identifies that the area A2 overlaps the communication area of the access point 10b identified by the AP 02.

  The notification processing unit 44 selects an area to be processed from among the areas for notifying the guidance (step S22). Furthermore, the notification processing unit 44 determines whether there is an area set as the guidance destination (step S23). When there is an area set as the guidance destination, the acquisition unit 42 specifies the access point 10 associated with the area set as the guidance destination and the nearest entry port of the area set as the guidance destination ( Yes in step S23, step S24). Here, the access point 10 identified by the access point ID associated with the area of the guidance destination forms a communication area overlapping the area of the guidance destination. For example, in the example of FIG. 5, the area A3 is set as the guide destination. Therefore, using the monitoring image database 51, the notification processing unit 44 overlaps the communication area of the access point 10c identified by the AP03 with the area A3 as the guidance destination, and the nearest boarding port is the third boarding port. Identify that.

  Thereafter, the notification processing unit 44 transmits, to the terminal connected to the access point 10 of the processing target area, a display request for requesting display of a message for prompting movement to the area set as the guidance destination ((1) Step S25). Here, the display request includes display data for displaying a message prompting movement of the area set as the guide destination to the vicinity of the entrance, and control information for requesting display of the display data on the screen. It is done. The terminal 5 connected to the access point 10 in the area to be processed is identified by the identifying unit 43 using the terminal database 53 during connection. The notification processing unit 44 generates a display request to be transmitted to each of the specified terminals 5, and transmits the generated display request via the transmission unit 32.

  For example, it is assumed that the areas A1 and A2 are set as the areas for notifying the guidance, and the area A1 is selected as a processing target. Here, the specifying unit 43 specifies that the identifier of the access point 10 forming the communication area overlapping in the area A1 is AP01 by the process of step S21. Therefore, the identifying unit 43 identifies the terminal 5 connected to the access point 10 identified by the AP 01 from the terminal database 53 during connection. When the control device 30 holds the connected terminal database 53 shown in FIG. 9, the specifying unit 43 specifies the plurality of terminals 5 including the terminals 5d to 5f as the display request transmission destination. On the other hand, the notification processing unit 44 generates a message for guiding the user of the terminal 5 in the vicinity of the 3rd entrance, using the processing result of step S24. For example, the notification processing unit 44 generates display data for displaying a message such as “the communication can be comfortably performed near the 3rd entrance” on the terminal side. The notification processing unit 44 generates a display request including display data addressed to each of the terminals 5 identified by the identification unit 43, and transmits the generated display request via the transmission unit 32.

  The notification processing unit 44 determines whether the process has ended for all of the areas for which notification of guidance is given (step S29). If the process has not been completed for all of the areas for which guidance is to be notified, the processes after step S22 are repeated (No in step S29). On the other hand, when the process is completed for all of the areas for notifying the guidance, the notification processing unit 44 ends the process.

  In step S23, it is assumed that it is determined that there is no area set as a guide destination (No in step S23). In this case, the second process is applied because there is no area to which the user who is in the crowded area is directed. Hereinafter, the case where the second process is applied will be described with reference to steps S26 to S28.

  The notification processing unit 44 acquires a second process corresponding to the ratio of the difference between the image data and the initial image in the area selected as the process target in step S22 (step S26). The notification processing unit 44 determines whether the second process is "disconnection" (step S27). When the second process is not "disconnection", the processes after step S29 are performed (No in step S27). When the second process is “disconnection”, the notification processing unit 44 causes the access point 10 in the area to be processed to perform the process of disconnecting the connection with the currently connected terminal 5. The controller 25 is requested (step S28).

  For example, it is assumed that although the area A2 is congested, none of the areas are set as guidance destinations. Then, the notification processing unit 44 determines the second processing to be applied to the area A2 using the ratio of the difference obtained for the area A2 and the processing database 52. When the processing database 52 is as shown in FIG. 7 and the ratio of the obtained difference to the area A2 is 90%, the second process applied to the area A2 is “disconnection”. Therefore, the notification processing unit 44 determines that the access point 10b (AP02) installed in the area A2 is disconnected from the terminal 5 establishing a connection with the access point 10b. The notification processing unit 44 generates a control message for requesting disconnection of the connection with the terminal 5 connected to the access point 10 b to the wireless LAN controller 25. When receiving the control message from the control device 30, the wireless LAN controller 25 controls the access point 10b in accordance with the control message. The access point 10 b disconnects the connection with all the connected terminals 5 under the control of the wireless LAN controller 25. Therefore, the terminal 5 in the area A2 fails in communication.

  The process of FIG. 11 is an example. For example, since there is no area that can be used as a guidance destination, when stopping communication in a relatively busy area, a packet transmitted from terminal 5 by a method other than disconnection between access point 10 and terminal 5 You may block it.

  FIG. 12 is a diagram for explaining an example of control processing. FIG. 12 is an example in which the area A1 and the area A2 are congested and the area A3 is set as the guidance destination. In this case, the display request is transmitted to the terminal 5 connected to the access point 10a and the terminal 5 connected to the access point 10b.

  In addition to the processing described with reference to FIGS. 10 and 11, the control device 30 may cause the wireless LAN controller 25 to operate the network so that the communication of the terminal 5 is not in a comfortable state in the guidance notification area. . In the example of FIG. 12, it is assumed that the network is controlled so that the communication speed of the terminal 5 is slow in the area A1 and the area A2. When controlling the network so as to prevent the communication of the terminal 5, the notification processing unit 44 specifies the access point 10 installed in the area for notifying the guidance using the monitoring image database 51. The notification processing unit 44 requests the wireless LAN controller 25 to deteriorate the communication status in the communication area of the access point 10 installed in the area for notifying the guidance. The notification processing unit 44 transmits a control request to the wireless LAN controller 25 in the same manner as the processing referring to step S28 of FIG. 11 and the like, and the wireless LAN controller 25 performs control according to the control request. For this reason, in the area for notifying the guidance, the communication status is deteriorated such as the communication speed of the terminal 5 becomes slow.

  In this case, at the time of notification to the terminal 5, the notification processing unit 44 causes the network control to display a message indicating that the communication of the terminal 5 is not comfortable as well as the notification of the guidance destination. , The display request can be transformed. For example, in the example of G1, the message “control the network by congestion. Communication can be made comfortably near the 3rd entrance.” Is displayed on the screen of the terminal 5.

  In the control shown in FIG. 12, since the user of the terminal 5 can recognize that the communication status is bad at the current position, the user can be easily guided to the guidance destination area. For this reason, there is a possibility that the congestion in the area notifying the guidance may be reduced.

  FIG. 13 is a diagram for explaining an example of control processing. FIG. 13 shows an example in which the area A1 and the area A2 are congested, and none of the areas are scattered to such an extent that they are to be guided. In this case, the second process is applied to each of the congested areas A1 and A2. FIG. 13 shows a control result in the case where the second process corresponding to the congestion degree (percentage of difference) in area A1 is not "disconnection" but the second process corresponding to the congestion degree in area A2 is "disconnection" . In this case, since disconnection is not performed in the areas A1, A3, and A4, the terminal 5 can communicate via the access points 10a, 10c, and 10d. On the other hand, in the area A2, the disconnection of the connection with the terminal 5 is requested to the access point 10b, so the terminal 5 located in the area A2 fails in communication. In this case, at the terminal 5 located in the area A2, a display indicating that the radio wave from the access point 10b can not be received is displayed as shown by G2.

  Therefore, the user who desires to operate the terminal 5 is expected to move from the area A2 to another area. Then, it is expected that the congestion in the area A2 will be alleviated. In the case of FIG. 13, since the guide destination is not displayed, the user of the terminal 5 is expected to move to any of the areas A1, A3 and A4. The moving area may differ depending on the user, so it is unlikely that the area will be extremely crowded anew.

  In the method according to the embodiment, the area imaged by the imaging device 15 and the access point 10 forming a communication area overlapping each area are associated as the monitoring image database 51. Therefore, since the congestion degree of the communication area of each access point 10 can be specified using image data obtained by imaging the situation of the communication area, it is better than analogizing the congestion state only from the number of communications to the access point 10 Accurate information can be obtained. For example, even if the number of communications of each access point 10 is small, if there is a person who does not have a terminal connecting to the access point 10 in the vicinity of the access point 10, congestion occurs in the vicinity of the communication area of the access point 10. Can occur. Furthermore, since there are pillars, stairs, etc. in the vicinity of the installation position of the access point 10, congestion occurs even if the number of communications is small even when the area around the communication area of the access point 10 is narrow and easily crowded. In the method according to the embodiment, by using the image data obtained from the imaging device 15, it can be said that the state of congestion can be grasped more accurately. Therefore, the user of the terminal 5 can be guided to a suitable guiding destination as compared with the case where the congestion state is identified using the number of communications to the access point 10.

<Modification>
The embodiment is not limited to the above, and can be variously modified. Here are some examples:

  The processing described with reference to FIGS. 5 to 13 may be performed in a state where the terminal 5 is operating the control application. In this case, communication between the terminal 5 and the control device 30 is transmitted and received as data used by the control application.

  FIG. 14 is a diagram for explaining an example of control on a terminal that starts a session. In addition to the above processing, when the session is started, the processing of FIG. 14 may be performed, and the processing described with reference to FIG. 14 may be performed independently. The system shown in FIG. 14 is similar to the system shown in FIGS.

  Also in the process of FIG. 14, the imaging device 15 captures the communication area of each access point 10 as in the case of FIG. 1 and transmits the image data to the control device 30 in association with the information of the captured area (procedure P21).

  In control device 30, determination unit 41 analyzes image data, and it is determined that it is desirable for a person to move outside the communication area of access point 10b because congestion is heavy in the communication area of access point 10b. Suppose that it judged. Then, the notification processing unit 44 newly requests the wireless LAN controller 25 to perform display for guiding the movement to the terminal 5 that starts a session with the access point 10 b (procedure P22). Then, when the terminal 5 that starts a session with the access point 10 b accesses the Internet 21, the wireless LAN controller 25 performs redirect processing so that a display for guiding the movement is displayed as the top page. Note that the display for guiding the movement may be generated by the control device 30, or may be generated by another device that has acquired the congestion status of each area in the control device 30.

  FIG. 14 shows, as an example, a change in an example of a display displayed on the terminal 5c when the terminal 5c newly connects to the access point 10 and implements the Internet connection. Here, in the terminal 5c, when performing the connection processing, it is assumed that a selection screen for selecting the access point 10 of the connection destination is displayed on the screen of the terminal 5c as shown in G11. It is assumed that the user of the terminal 5c selects the communication using the SSID_APb among the SSID_APa and the SSID_APb. The SSID_APb is an SSID used for connection with the access point 10b, and the SSID_APa is an SSID used for connection with the access point 10a. When the user selects the communication using the SSID_APb, the terminal 5c connects to the access point 10b and accesses the wireless LAN controller 25 (procedure P23).

  When procedure P23 is performed, in procedure P22, the wireless LAN controller 25 is requested to redirect packets of the terminal 5 that initiates a session via the access point 10b. Therefore, when access to the Internet 21 via the access point 10b is requested in step P23, the wireless LAN controller 25 performs redirect processing and designates a page for guiding movement as the redirect destination (step P24). . Therefore, in the terminal 5c, the redirect destination page is read, and the display shown in G12 is performed. The display of G12 indicates that the area in which the terminal 5c is located is crowded and that movement to another area is promoted. In addition, according to the determination result of the congestion condition in the control apparatus 30, information, such as a guidance destination area, is suitably changed about the page of a redirection destination.

  By performing guidance display as shown in G12, it can be expected that the user of the terminal 5c moves from the communication area of the access point 10b to an area not crowded. For this reason, alleviation of congestion is also expected by the process of FIG.

  The process of FIG. 14 can also be applied to the terminal 5 that is not operating a control application. Also, although FIG. 14 has been described using a display example on a terminal newly connected to the access point 10, the terminal 5 that starts a new session via the currently connected access point 10 is also shown in FIG. Similar processing may be performed.

  Furthermore, the redirect process of the packet requesting the generation of a new session is not limited to the case where it is performed by the wireless LAN controller 25, and any communication that dynamically changes the transfer rule by acquiring the policy used for the transfer process. It can be done by the device. For example, the access point 10 may correspond to Software-Defined Network (SDN). In this case, the access point 10 in the congested area performs the redirecting process when it receives the packet requesting the communication to newly generate the session after the control device 30 has requested to perform the redirecting process. Even when the redirection process is performed by the access point 10, a display for guiding the movement is displayed as the top page on the terminal that has transmitted the packet targeted for the redirection process.

  Similarly, a terminal connected to the access point 10 in the congested area according to the transfer rule notified from the control device 30 because any device in the network 20 corresponds to the SDN. The output destination of the packet sent from may be changed. Also in this case, the control device 30 sets the transfer destination on the terminal so that the display for guiding the movement is displayed as the top page by the change of the transfer destination in the device in the network 20.

  The database described in the above description is only an example. Therefore, the type and information of the information element stored in each database may be changed according to the implementation. Furthermore, as for the display on the terminal 5, the contents of the message, the layout of the display, etc. may be changed according to the implementation.

  Furthermore, the process for determining whether each area is congested in the determination unit 41 may also be changed according to the implementation. For example, the determination unit 41 may count the number of heads of persons appearing in the image data received from the imaging device 15, and determine the degree of congestion based on the obtained value. Alternatively, the degree of congestion may be determined using the result of edge processing or the result of calculation of the area in which a person appears.

  In the above description, although the case where the system according to the embodiment is installed at the station's home has been described as an example, the installation position of the system according to the embodiment is not limited to the station. For example, the system according to the embodiment can be used also at a shelter or event site when a disaster occurs.

Further, the following appendices will be disclosed regarding the above-described embodiment.
(Supplementary Note 1)
Based on the congestion state of each of the plurality of areas specified from image data obtained by imaging a plurality of areas, a crowded area and a guidance destination area of a user of a user of a terminal located in the crowded area from the plurality of areas To determine
An access point corresponding to the congested area is identified with reference to a storage unit that stores the correspondence between each of the plurality of areas and each of the plurality of access points;
A guidance program characterized by causing a control device to perform a process of performing communication control that prompts a terminal communicating through the specified access point to move to the guidance destination area.
(Supplementary Note 2)
The control device controls a communication device included in a route from a terminal connected to an access point located in the congested area to a communication destination of the terminal,
The communication control is performed by the communication device
Transferring a packet transmitted from a terminal connected to an access point located in the congested area to a server disclosing information prompting movement to the destination area;
The guidance program according to Supplementary Note 1, which is control for sending information to the terminal to prompt movement to the guidance destination area as a response to the transferred packet.
(Supplementary Note 3)
The communication control is
If there is no area to be the guidance destination area, a relatively crowded area among the crowded areas is determined as a stop area for stopping communication,
Control information transmitting control information for requesting processing for blocking packets passing through the access point to an access point including the stop area in a communication area is transmitted to a controller controlling the plurality of access points. The induction | guidance program of Additional remark 1 or 2 to be.
(Supplementary Note 4)
The communication control is
If there is no area to be the guidance destination area, a relatively crowded area among the crowded areas is determined as a stop area for stopping communication,
When an access point including the stop area in a communication area is controlled by the control device as the communication device, control is performed to request the access point to perform processing for blocking a packet passing through the access point. The induction program described in Appendix 2.
(Supplementary Note 5)
The control device is caused to perform a process of acquiring a connection status specifying a terminal connected to each of the plurality of access points,
The communication control is control for transmitting information prompting movement to the guidance destination area to a terminal in communication via an access point located in the congested area, using the connection state. The induction program according to appendix 1.
(Supplementary Note 6)
Based on the congestion state of each of the plurality of areas specified from image data obtained by imaging a plurality of areas, a crowded area and a guidance destination area of a user of a user of a terminal located in the crowded area from the plurality of areas A decision unit to decide
A storage unit storing correspondences between each of the plurality of areas and each of the plurality of access points;
With reference to the storage unit, an access point corresponding to the congested area is identified, and communication control is performed to urge a terminal communicating via the identified access point to move to the guidance destination area. A control device comprising: a processing unit.
(Appendix 7)
The control device controls a communication device included in a route from a terminal connected to an access point located in the congested area to a communication destination of the terminal,
The communication control is performed by the communication device
Transferring a packet transmitted from a terminal connected to an access point located in the congested area to a server disclosing information prompting movement to the destination area;
The control device according to claim 6, wherein the control device transmits control information for prompting movement to the guidance destination area as a response to the transferred packet.
(Supplementary Note 8)
The communication control is
If there is no area to be the guidance destination area, a relatively crowded area among the crowded areas is determined as a stop area for stopping communication,
Control information transmitting control information for requesting processing for blocking packets passing through the access point to an access point including the stop area in a communication area is transmitted to a controller controlling the plurality of access points. The control apparatus as described in additional remark 6 or 7.
(Appendix 9)
The communication control is
If there is no area to be the guidance destination area, a relatively crowded area among the crowded areas is determined as a stop area for stopping communication,
When an access point including the stop area in a communication area is controlled by the control device as the communication device, control is performed to request the access point to perform processing for blocking a packet passing through the access point. The control device according to appendix 7.
(Supplementary Note 10)
The storage unit further stores the connection status of the terminal to each of the plurality of access points,
The communication control refers to control for referring to the storage unit and transmitting information prompting movement to the guidance destination area to a terminal communicating via an access point located in the congested area. The control device according to appendix 6.
(Supplementary Note 11)
Based on the congestion state of each of the plurality of areas specified from image data obtained by imaging a plurality of areas, a crowded area and a guidance destination area of a user of a user of a terminal located in the crowded area from the plurality of areas To determine
An access point corresponding to the congested area is identified with reference to a storage unit that stores the correspondence between each of the plurality of areas and each of the plurality of access points;
A control method performs the processing which performs communication control which urges movement to the guidance destination area to the terminal currently communicating via the specified access point.
(Supplementary Note 12)
The control device controls a communication device included in a route from a terminal connected to an access point located in the congested area to a communication destination of the terminal,
The communication control is performed by the communication device
Transferring a packet transmitted from a terminal connected to an access point located in the congested area to a server disclosing information prompting movement to the destination area;
The guidance method according to appendix 11, wherein control is to send information to the terminal to prompt movement to the guidance destination area as a response to the transferred packet.
(Supplementary Note 13)
The communication control is
If there is no area to be the guidance destination area, a relatively crowded area among the crowded areas is determined as a stop area for stopping communication,
Control information transmitting control information for requesting processing for blocking packets passing through the access point to an access point including the stop area in a communication area is transmitted to a controller controlling the plurality of access points. The induction | guidance method of additional remarks 11 or 12 to be.
(Supplementary Note 14)
The communication control is
If there is no area to be the guidance destination area, a relatively crowded area among the crowded areas is determined as a stop area for stopping communication,
When an access point including the stop area in a communication area is controlled by the control device as the communication device, control is performed to request the access point to perform processing for blocking a packet passing through the access point. The induction method according to appendix 12.
(Supplementary Note 15)
The control device acquires a connection status specifying a terminal connected to each of the plurality of access points,
The communication control is control for transmitting information prompting movement to the guidance destination area to a terminal in communication via an access point located in the congested area, using the connection state. The induction method according to appendix 11.

5 terminal 10 access point 15 imaging device 20 network 25 wireless LAN controller 30 control unit 31 communication unit 32 transmission unit 33 reception unit 40 control unit 41 determination unit 42 acquisition unit 43 identification unit 44 notification processing unit 50 storage unit 51 monitoring image database 52 Processing database 53 Connected terminal database 101 Processor 102 Memory 103 Input device 104 Output device 105 Bus 106 Storage device 107 Portable storage medium drive 108 Portable storage medium 109 Network interface

Claims (7)

Based on the congestion state of each of the plurality of areas specified from image data obtained by imaging a plurality of areas, a crowded area and a guidance destination area of a user of a user of a terminal located in the crowded area from the plurality of areas To determine
An access point corresponding to the congested area is identified with reference to a storage unit that stores the correspondence between each of the plurality of areas and each of the plurality of access points;
A guidance program characterized by causing a control device to perform a process of performing communication control that prompts a terminal communicating through the specified access point to move to the guidance destination area. The control device controls a communication device included in a route from a terminal connected to an access point located in the congested area to a communication destination of the terminal,
The communication control is performed by the communication device
Transferring a packet transmitted from a terminal connected to an access point located in the congested area to a server disclosing information prompting movement to the destination area;
The control program according to claim 1, wherein the control program is control for sending information to the terminal to move to the guide destination area as a response to the transferred packet. The communication control is
If there is no area to be the guidance destination area, a relatively crowded area among the crowded areas is determined as a stop area for stopping communication,
Control information transmitting control information for requesting processing for blocking packets passing through the access point to an access point including the stop area in a communication area is transmitted to a controller controlling the plurality of access points. The induction program according to claim 1 or 2. The communication control is
If there is no area to be the guidance destination area, a relatively crowded area among the crowded areas is determined as a stop area for stopping communication,
When an access point including the stop area in a communication area is controlled by the control device as the communication device, control is performed to request the access point to perform processing for blocking a packet passing through the access point. The induction program according to claim 2. The control device is caused to perform a process of acquiring a connection status specifying a terminal connected to each of the plurality of access points,
The communication control is control for transmitting information prompting movement to the guidance destination area to a terminal in communication via an access point located in the congested area, using the connection state. The induction program according to claim 1. Based on the congestion state of each of the plurality of areas specified from image data obtained by imaging a plurality of areas, a crowded area and a guidance destination area of a user of a user of a terminal located in the crowded area from the plurality of areas A decision unit to decide
A storage unit storing correspondences between each of the plurality of areas and each of the plurality of access points;
With reference to the storage unit, an access point corresponding to the congested area is identified, and communication control is performed to urge a terminal communicating via the identified access point to move to the guidance destination area. A control device comprising: a processing unit. Based on the congestion state of each of the plurality of areas specified from image data obtained by imaging a plurality of areas, a crowded area and a guidance destination area of a user of a user of a terminal located in the crowded area from the plurality of areas To determine
An access point corresponding to the congested area is identified with reference to a storage unit that stores the correspondence between each of the plurality of areas and each of the plurality of access points;
A control method performs the processing which performs communication control which urges movement to the guidance destination area to the terminal currently communicating via the specified access point.