JP2017065571A - Notification program, communication device, and notification method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a user of a mobile terminal with a method for effectively calling attention.SOLUTION: A notification program is executed by a communication device. The communication device associates identification information of a mobile terminal with an identifier of an access point of a connection destination of the mobile terminal to acquire them about the mobile terminal which performs communication through any of a plurality of access points installed in a station. When the detection of a train is notified from a sensor for detecting a train advancing to a platform of a station, the communication device transmits a display request to a mobile terminal identified by identification information associated with the identifier of an access point which forms a communication area at the platform to which the train advances. Here, the display request is a request for requesting to display a display message for calling attention to the train on a screen of the mobile terminal.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a notification method using a communication device.

  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 there is a possibility that a user who uses the mobile terminal while moving may cause an accident, or the use of the mobile terminal may be annoying to others in public places, countermeasures have been studied. For example, a state in which the user visually observes the user's own device using the determination result of the user's face direction obtained from the moving speed of the user's device, the startup state of the display screen, and the image captured by the imaging means provided on the display screen There has been proposed a portable terminal that determines whether or not a person is walking (for example, Patent Document 1).

  In addition, as a system installed in a transportation facility, when a vehicle occupied by a specific advertisement is detected approaching the station, a system that links the advertisement displayed on the display in the station with the specific advertisement of the vehicle. It has been proposed (for example, Patent Document 2).

Japanese Patent Application Laid-Open No. 2014-232411 JP 2004-077519 A

  There is a possibility that a user using a mobile terminal while moving may have an accident, but at the station platform, the user may have a serious accident, such as fear of falling from the platform or coming into contact with the train. There is a fear. However, even if the staff of the station pays attention to the user who is using the mobile terminal while moving by announcement etc., it is difficult to alert the user if the user concentrates on the processing of the mobile terminal etc. .

  In one aspect, an object of the present invention is to provide a method for effectively alerting a user of a mobile terminal.

  In one certain aspect, the notification program is executed by the communication device. The communication device associates the identification information of the mobile terminal with the identifier of the access point to which the mobile terminal is connected for a mobile terminal communicating via any of a plurality of access points installed at a station Get. When the communication device is notified of the detection of the train from a sensor that detects a train entering the platform of the station, the identification information associated with the identifier of the access point that forms a communication area in the platform where the train enters A display request is transmitted to the mobile terminal identified by. Here, the display request is a request for requesting to display a display message for calling attention to the train on the screen of the mobile terminal.

  It is possible to effectively alert the user of the mobile terminal.

It is a figure explaining the example of the notification method concerning embodiment. It is a figure explaining the example of a structure of a communication apparatus. It is a figure explaining the example of the hardware constitutions of a communication apparatus. It is a figure explaining the example of a structure of a mobile terminal. It is a figure explaining the example of the hardware constitutions of a mobile terminal. It is a sequence diagram explaining the example of the method in which a communication apparatus acquires the information of a mobile terminal. It is a figure explaining the example of a connecting terminal table. It is a figure explaining the example of a sensor table. It is a figure explaining the example of a train table. It is a figure explaining the example of a message table. It is a figure explaining the example of a display setting table. It is a flowchart explaining the example of the process performed with a communication apparatus. It is a flowchart explaining the example of the transmission process of a display request. It is a figure explaining the example of a display of the screen of a mobile terminal. It is a figure explaining the example of a display of the screen of a mobile terminal. It is a flowchart explaining the example of the cancellation | release process of a message. It is a flowchart explaining the example of the display process performed with a mobile terminal. It is a flowchart explaining the example of the communication process performed with a mobile terminal. It is a figure explaining the example of a structure of the mobile terminal concerning 2nd Embodiment. It is a figure explaining the example of a message table. It is a figure explaining the example of a message table. It is a flowchart explaining the example of the transmission process of a message. It is a flowchart explaining the example of the display process performed with a mobile terminal. It is a figure explaining the example of the installation method of an access point. It is a figure explaining the example of installation position information. It is a figure explaining the example of the installation method of an access point.

  FIG. 1 is a diagram illustrating an example of a notification method according to the embodiment. The station 4 where the notification method according to the embodiment is used has a home 4 along the track, and an access point 8 is installed in the home 4. In addition, sensors 6 (6a, 6b) for detecting the approach of the train 2 to the home 4 are installed. In the example of FIG. 1, the sensor 6 a detects the start of entry of the train 2 to the home 4, and the sensor 6 b detects the end of entry of the train 2 to the home 4. The sensor 6a, sensor 6b, and access point 8 are connected to the communication device 20 via the network 10. The communication device 20 is assumed to store the installation position of each sensor 6 in association with an identifier used for identification of the sensor 6. Similarly, the communication device 20 stores the installation position of the access point 8 in association with the identifier used to identify the access point 8.

  The user holds the mobile terminal 50. Assume that the mobile terminal 50 holds information such as an SSID (Service Set Identifier) for use in communication with the access point 8 in advance.

  It is assumed that the user using the mobile terminal 50 has entered the home 4 and has received the radio wave transmitted from the access point 8. Then, a connection is established between the mobile terminal 50 and the access point 8 (arrow A1). The access point 8 notifies the mobile terminal 50 of information on the communication device 20 when establishing communication with the mobile terminal 50. The mobile terminal 50 notifies the communication device 20 of information such as the address of the mobile terminal 50 via the access point 8 (arrow A2). The communication device 20 stores information received from the mobile terminal 50.

  Then, suppose that the train 2 has traveled on the track. Further, it is assumed that the sensor 6a detects that the train 2 starts entering the home 4. The sensor 6a notifies the communication device 20 that the start of approach to the platform 4 of the train 2 is detected together with the identifier of the sensor 6a (arrow A3). When notified that the train 2 starts entering the home 4, the communication device 20 determines from the identification information of the sensor 6 a that the home 4 in which the sensor 6 a is installed and the access installed in the home 4. Point 8 is identified. Furthermore, the communication device 20 selects the mobile terminal 50 connected to the identified access point 8 as a warning process target.

  The communication device 20 transmits to the selected mobile terminal 50 a display request for requesting display for notifying that the train 2 has entered the home 4 (arrow A4). When receiving the display request from the communication device 20, the mobile terminal 50 displays a display for calling attention to the train on the screen of the mobile terminal 50 according to the display request.

  G1 in FIG. 1 is an example of the alert display displayed on the screen of the mobile terminal 50. In the example of G1, when the user is playing a game or the like, a message for alerting is displayed near the center of the forefront of the screen so that the user can visually recognize the message for alerting.

  In the method according to the embodiment, the communication device 20 alerts the mobile terminal 50 connected to the access point 8 located in the home 4 where the train 2 is about to enter so that the user can visually recognize the mobile terminal 50. Send a request for display. For this reason, in the mobile terminal 50 connected to the access point 8 located in the home 4 on which the train 2 is approaching, a reminder accompanying the approach of the train 2 to the home 4 is displayed on the screen. Therefore, in the method according to the embodiment, it is possible to effectively alert the user who is using the mobile terminal 50 to the train 2.

  The display described with reference to FIG. 1 is an example. For example, the display process on the mobile terminal 50 may be changed according to the movement status of the user operating the mobile terminal 50 and the usage status of the mobile terminal 50. In addition, the connection status of the mobile terminal 50 may be updated between the communication device 20 and the access point 8 as appropriate. In this case, the mobile terminal 50 that is the transmission destination of the display request is determined according to the latest connection status. Furthermore, the processing of the communication device 20 can be changed according to the policy of the railway company that uses the system. For example, the communication device 20 is set to transmit a control packet for displaying information on the train 2 that is entering as the operation information of the home 4 to a user who is not located in the home 4 where the train 2 enters. Can be done.

  In the above description, the case where the access point 8 is located at the home 4 has been described as an example. However, this is only an example, and the access point 8 communicates with the home 4 even if it is not installed at the home 4. What is necessary is just to be installed so that an area may be formed.

<Device configuration>
FIG. 2 is a diagram illustrating an example of the configuration of the communication device 20. The communication device 20 includes a communication unit 21, a control unit 30, and a storage unit 40. The communication unit 21 includes a transmission unit 22 and a reception unit 23. The control unit 30 includes an acquisition unit 31, a specification unit 32, and a generation unit 33. The storage unit 40 stores a sensor table 41, a connected terminal table 42, a train table 43, a message table 45, and installation position information 46.

  The transmission unit 22 transmits a packet to another device such as the access point 8 or the mobile terminal 50. The receiving unit 23 receives packets from other devices such as the access point 8 and the mobile terminal 50. The acquisition unit 31 acquires information on the mobile terminal 50 connected to the access point 8 installed in the home 4. The specifying unit 32 uses the information acquired from the sensor 6 to specify the home 4 or the number line on which the train 2 has entered. The production | generation part 33 produces | generates the display request | requirement which requests | requires the display of the message for alerting. The generation unit 33 transmits the generated display request to the mobile terminal 50 that is the transmission destination of the display request via the transmission unit 22.

  The sensor table 41 associates the identifier of the sensor 6 installed in the station premises with information such as the installation position. The connected terminal table 42 stores information of the connected mobile terminal 50 for each access point 8. In addition, when the some access point 8 is installed in the station premises, the communication apparatus 20 shall memorize | store the installation position information 46 which shows the installation position of an access point. When the station premises are covered by one access point 8, the communication device 20 may not hold the installation position information 46. The train table 43 associates an identifier that the sensor 6 acquires from the train 2 with information such as the destination of the train 2. The message table 45 is used to generate a message to be displayed on the mobile terminal 50 that is the control information notification destination. Examples of the sensor table 41, the connected terminal table 42, the train table 43, and the message table 45 will be described later.

  FIG. 3 shows an example of the hardware configuration of the communication device 20. The communication device 20 includes a processor 101, a memory 102, an input device 103, an output device 104, a bus 105, and a network interface 109. The communication device 20 may further include one or more of a storage device 106 and a 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 30. The memory 102 includes a read only memory (ROM) and a random access memory (RAM), and operates as the storage unit 40. The communication unit 21 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 data can be transmitted and received among them.

  The input device 103 is an arbitrary device used for inputting information, such as a keyboard and a mouse, and the output device 104 is an arbitrary device used for outputting data, such as a display device including a display. The portable storage medium driving device 107 can output the data of the memory 102 and the storage device 106 to the portable storage medium 108, and can read programs, 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).

  FIG. 4 is a diagram for explaining an example of the configuration of the mobile terminal 50. The mobile terminal 50 includes a communication unit 51, a control unit 60, a storage unit 70, and a display device 114. The communication unit 51 includes a transmission unit 52 and a reception unit 53. The control unit 60 includes a connection processing unit 61, a determination unit 62, a display processing unit 63, and an application processing unit 64. The storage unit 70 stores a display setting table 71.

  The transmission unit 52 transmits a packet to another device such as the access point 8 or the communication device 20. The receiving unit 53 receives packets from other devices such as the access point 8 and the communication device 20. The connection processing unit 61 performs processing for connecting to the access point 8 and processing for notifying the communication device 20 of information on the mobile terminal 50. The determination unit 62 determines whether the mobile terminal 50 is moving, using the magnitude of vibration applied to the mobile terminal 50 or the like. The application processing unit 64 performs processing by an application operating on the mobile terminal 50. The display processing unit 63 controls display on a screen included in the display device 114. For example, the display processing unit 63 appropriately displays an image designated by the application processing unit 64 on the screen of the display device 114. Further, the display processing unit 63 specifies the display method of the display message specified by the packet received from the communication device 20 from the display setting table 71, and displays the acquired message on the display device 114 by the specified method.

  FIG. 5 is a diagram for explaining an example of the hardware configuration of the mobile terminal 50. The mobile terminal 50 includes a processor 111, a memory 112, an input device 113, a display device 114, a sensor 115, a wireless processing circuit 116, and a bus 117. The processor 111 operates as the control unit 60. The memory 112 operates as the storage unit 70. The bus 117 connects the processor 111, the memory 112, the input device 113, the display device 114, the sensor 115, and the wireless processing circuit 116 so that data can be input and output.

  The memory 112 includes a ROM and a RAM. The processor 111 reads the program recorded in the ROM and realizes the control unit 60. The input device 113 is an arbitrary device used for inputting information, such as a button, and the display device 114 is a display device including a display. In addition to the display device 114, the mobile terminal 50 can include an arbitrary output device used for outputting data. The sensor 115 measures vibration or the like for determining whether the mobile terminal 50 is moving. The determination unit 62 is realized by the sensor 115 and the processor 111. The wireless processing circuit 116 performs wireless communication processing when the mobile terminal 50 communicates with the communication device 20, the access point 8, and the like. The communication unit 51 is realized by the processor 111 and the wireless processing circuit 116. The mobile terminal 50 is realized as a mobile phone terminal including a smartphone, a tablet, a computer, or the like.

<First Embodiment>
Hereinafter, the communication method according to the first embodiment includes the connection process of the mobile terminal 50, an example of information held by the communication device 20 and the mobile terminal 50, the notification from the communication device 20 to the mobile terminal 50, and the mobile terminal 50 The display process and the release process will be described separately.

(1) Connection processing of mobile terminal 50 When the user holds the mobile terminal 50 and enters the station, the mobile terminal 50 receives a signal transmitted from the access point 8. Since the mobile terminal 50 stores information such as an SSID that can be used for communication with the access point 8 installed in the station in the storage unit 70 in advance, the mobile terminal 50 establishes a connection with the access point 8, Information on the mobile terminal 50 itself is notified to the communication device 20.

  FIG. 6 is a sequence diagram illustrating an example of a method for the communication device 20 to acquire information on the mobile terminal 50. The access point 8 periodically outputs information (AP information) that can be used by the mobile terminal 50 attempting to establish a connection with the access point 8 (arrow A11). The connection processing unit 61 of the mobile terminal 50 performs processing for establishing a connection with the access point 8 using the AP information received from the access point 8 and the SSID stored in advance (arrow A12). ). At this time, the connection processing unit 61 notifies the access point 8 of the MAC address of the mobile terminal 50 via the transmission unit 52. On the other hand, the access point 8 notifies the mobile terminal 50 of information on the communication device 20. The connection processing unit 61 acquires information on the communication device 20 via the receiving unit 53.

  The connection processing unit 61 notifies the communication device 20 of the terminal ID and MAC address assigned to the mobile terminal 50 (arrow A13). In the process of arrow A13, the connection processing unit 61 may further notify the communication device 20 of information for notifying the state of the mobile terminal 50. The acquisition unit 31 in the communication device 20 records the information acquired from the mobile terminal 50 in the connected terminal table 42. The information indicating the state of the mobile terminal 50 notified to the communication device 20 includes information such as whether a warning application that operates to realize display of a warning from the communication device 20 is activated.

  The communication device 20 updates the information of the mobile terminal 50 connected to the access point 8 by periodically accessing the access point 8 (arrow A14). The acquisition unit 31 appropriately updates the connected terminal table 42 using the information acquired from the access point 8. In the communication indicated by the arrow A14, the communication device 20 obtains the MAC address of the mobile terminal 50 connected to the access point 8 from the access point 8, so that information such as the connection destination of each mobile terminal 50 can be obtained. Update. For example, it is assumed that an access point 8a and an access point 8b are installed in a station, and the mobile terminal 50 moves to the communication area of the access point 8b after connecting to the access point 8a. In this case, after the mobile terminal 50 is connected to the access point 8b, the MAC address of the mobile terminal 50 is notified to the communication device 20 as a device connected to the access point 8b from the access point 8b.

  In parallel with the process indicated by the arrow A14, the communication device 20 may periodically acquire information representing the state of the mobile terminal 50 via the access point 8. When the communication device 20 periodically acquires information representing the state of the mobile terminal 50, the acquisition unit 31 appropriately updates the connected terminal table 42 using the information acquired about the mobile terminal 50. The process described with reference to FIG. 6 is an example. For example, the mobile terminal 50 may store information on the communication device 20 in advance. In this case, the mobile terminal 50 does not have to acquire the information of the communication device 20 via the access point 8.

  FIG. 7 is a diagram illustrating an example of the connected terminal table 42. The acquisition unit 31 in the communication device 20 records the information acquired from the mobile terminal 50 or the access point 8 in the connected terminal table 42 by the arrows A13 and A14 in FIG. In the connected terminal table 42, information of the terminal is recorded for each terminal. When the activation status of the warning application is notified from the mobile terminal 50, the acquisition unit 31 records the information of the mobile terminal 50 notified that the warning application is notified in the connected terminal table 42. FIG. 7 is an example of the connected terminal table 42 that is generated when the activation status of the user application and the movement status of the mobile terminal 50 are notified as information indicating the state of the mobile terminal 50. The user application (user application) refers to an application other than the warning application operating on the mobile terminal 50.

  The connected terminal table 42 shown in FIG. 7 includes the identifier of the access point 8, the terminal ID, the address of the mobile terminal 50, the user application activation status, the movement status, and the transmission status at the mobile terminal 50. Hereinafter, the case where the address is a MAC address will be described as an example. However, when the mobile terminal 50 notifies the communication device 20 of the IP address assigned to the own device, the connected terminal table 42 is assigned to the mobile terminal 50. The recorded IP address can be recorded.

  The user application activation status indicates whether there is an activated application other than the warning application in the mobile terminal 50. When the application processing unit 64 performs processing for any application other than the warning application, the connection processing unit 61 notifies the communication device 20 that the user application is being activated. The movement status indicates whether or not the determination unit 62 in the mobile terminal 50 determines that the user holding the mobile terminal 50 is moving. Here, it is assumed that the determination unit 62 determines that the mobile terminal 50 is moving when vibrations greater than or equal to a predetermined level are detected by the sensor 115 at a frequency greater than or equal to a predetermined level. The transmission status indicates whether the mobile terminal 50 has transmitted a display request for requesting a display process for alerting the user and has not requested to cancel the display process. “Transmission state = transmitted” indicates that the mobile terminal 50 that is displaying a screen for alerting is not requested after the communication device 20 has requested display processing for alerting. Show. On the other hand, in the case of transmission status = not transmitted, the display is not requested from the communication device 20, or the cancellation is already requested even if the display processing for alerting is requested in the past. This indicates that the mobile terminal 50 does not display the screen for In the example of FIG. 7, the screen for alerting is displayed on the mobile terminal 50a and the mobile terminal 50c, but the screen for alerting is not displayed on the mobile terminal 50b.

  If the connected terminal table 42 is used, the usage status of each mobile terminal 50 can be predicted. For example, the mobile terminal 50a is connected to the access point 8 identified by AP1 and performs processing of a user application. Furthermore, since the movement status of the mobile terminal 50a is moving, it can be predicted that the user of the mobile terminal 50a is processing an application while moving around the access point 8 identified by AP1. The mobile terminal 50b is connected to the access point 8 identified by AP1, does not perform any user application processing, and does not move. From these situations, it can be predicted that the user of the mobile terminal 50b is stationary around the access point 8 identified by AP1 and is not operating the mobile terminal 50b. Furthermore, the mobile terminal 50c is connected to the access point 8 identified by the AP 2 and is processing the user application, but is not moving. From these situations, it can be predicted that the user of the mobile terminal 50c is stationary around the access point 8 identified by AP2 and is operating the mobile terminal 50c.

(2) Example of information held by communication device 20 and mobile terminal 50 First, a specific example of a table held by the communication device 20 in order to specify which home 4 the train 2 is entering will be described. .

  FIG. 8 is a diagram for explaining an example of the sensor table 41. The sensor table 41 includes a sensor ID, type, number line, and direction. The sensor ID is an identifier used for identifying the sensor 6. The number line is used to identify the line that has confirmed the entry. The type indicates the type of information that can be detected by the sensor 6, and is uniquely determined according to the installation position of the sensor. For example, since the sensor with sensor ID = 001-1 is installed at the start position of the approach of the train 2 to the first line of the home 4, the “entry start” of the first line is detected. Since the sensor with sensor ID = 001-2 is installed at the start position of entry of the train 2 to the second line of the home 4, it detects “entry start” of the train 2 to the second line. Further, since the sensor with sensor ID = 002-1 is installed at the end position of entry of the train 2 to the first line of the home 4, it detects that the train 2 is “entered” to the first line. Similarly, since the sensor with sensor ID = 002-2 is installed at the end position of entry of the train 2 to the second line of the home 4, it is detected that the second line is “entered”.

  The “direction” in the sensor table 41 indicates whether the train detected by the sensor is the train 2 traveling in the upward direction or the downward direction. When the up train 2 arrives at the first line and the down train arrives at the second line, as shown in FIG. 8, the sensors (ID = 001-1, 002-1) installed on the first line The sensor (ID = 001-2, 002-2) installed on the second line detects the down-bound train 2.

  FIG. 9 is a diagram illustrating an example of the train table 43. The train table 43 records information that may be notified to the user about the train. In the example of FIG. 9, a train ID, a route name, a type, and a destination are included. In the example of FIG. 9, the train with the train ID = T1 is a rapid train bound for Kawasaki on the Nanbu Line. The train with train ID = T2 is a stop at each station for Kawasaki on the Nanbu Line. Furthermore, the train with train ID = T3 is a rapid train for Kawasaki on the Nanbu Line.

  Next, specific examples of a table used when notification from the communication device 20 to the mobile terminal 50 and a table used for display processing on the mobile terminal 50 will be described.

  FIG. 10 is a diagram for explaining an example of the message table 45. The message table 45 includes a message requesting the mobile terminal 50 to display on a screen for calling attention, conditions for using each message, and message display method ID. Note that the message may include a variable for replacing the information of the specified train 2. For example, in FIG. The message 1 includes a circle on the message text. A circle in the message is a variable for replacing the information on the specified train 2. The procedure when the variable processing of the message is performed will be described in detail in the explanation of the example of the message transmission processing (FIG. 13).

  The condition that each message is used is expressed using the state of each mobile terminal 50 specified in the connected terminal table 42. For example, when the mobile terminal 50 that is the notification destination is starting up the user application and not moving, No. in the message table 45 is displayed. One message is used. On the other hand, when the mobile terminal 50 that is the notification destination is starting up and moving, the user terminal 50 in the message table 45 is moved. Two messages are used. Similarly, when the user application is not activated on the mobile terminal 50 that is the notification destination, No. in the message table 45 is displayed. Three messages are used.

  In the example of FIG. 10, each message in the message table 45 is associated with a display method ID used for designating a display method. The display method ID is information notified from the communication device 20 to the mobile terminal 50 as a message display method. For example, no. The message obtained by performing the variable replacement process of the message 1 is transmitted to the transmission target mobile terminal 50 in association with the display method ID = D2. Similarly, no. The message 2 is transmitted to the transmission target mobile terminal 50 in association with the display method ID = D1. No. 3 is transmitted to the transmission target mobile terminal 50 in association with the display method ID = D3. The display processing unit 63 in the mobile terminal 50 performs image processing for displaying a message by a method specified by the display method ID notified from the communication device 20, using a display setting table 71 (FIG. 11) described later. Do. Depending on the implementation, the display method information corresponding to the display method ID may also be included in the message table 45 for the purpose of facilitating operator settings.

  FIG. 11 is a diagram for explaining an example of the display setting table 71. The display setting table 71 is used in the mobile terminal 50 that has received a display request from the communication device 20. In the display setting table 71, display method IDs and display methods are associated with each other. The display processing unit 63 specifies the display method by searching the display setting table 71 using the display method ID specified in the display request received from the communication device 20 as a key. In the example of FIG. 11, the display method ID = D1 represents a large pop-up display at the center. Display method ID = D2 represents displaying a message in two lines at the top of the screen. Further, the display method ID = D3 represents displaying a message with two lines in the center of the screen.

(3) Notification from communication device 20 to mobile terminal 50 Hereinafter, when communication device 20 holds the information shown in FIGS. 7 to 10 and mobile terminal 50 holds the information shown in FIG. As an example, an example of processing when the communication device 20 notifies the mobile terminal 50 will be described.

  FIG. 12 is a flowchart illustrating an example of processing performed in the communication device. FIG. 12 shows an example of processing performed when the communication device 20 receives a packet from the sensor 6 in the system. Note that FIG. 12 is an example, and the processing procedure can be changed depending on the implementation, such as the order of the processing in steps S2 and S3 being arbitrarily changed. Furthermore, the processing order of steps S6 and S7 can be arbitrarily changed.

  A packet transmitted from the sensor 6 in the system to the communication device 20 is output to the specifying unit 32 via the receiving unit 23. The specifying unit 32 determines whether the sensor ID and the train ID are received from the sensor 6 that detects the start of entering the home 4 using the sensor table 41 (FIG. 8) (step S1). When the sensor ID and the train ID are received from the sensor 6 that detects the start of entering the home 4, the specifying unit 32 acquires information on the type, line number, and direction associated with the sensor ID in the received packet. (Step S2). For example, it is assumed that a packet including information of sensor ID = 001-1 and train ID = T3 is transmitted from the sensor 6a to the communication device 20. In this case, the identifying unit 32 extracts information “sensor ID = 001-1” from the received packet, and searches the sensor table 41 using “sensor ID = 001-1” as a key. By this processing, it is specified that the packet transmission source sensor 6 is used for detecting the entry of the train 2 to the home 4 and that the train 2 going upward is entering the first line. .

  Next, the specifying unit 32 refers to the train table 43 and acquires route name, type, and destination information associated with the train ID in the received packet (step S3). For example, it is assumed that a packet including information of sensor ID = 001-1 and train ID = T3 is transmitted to the communication device 20. In this case, the specifying unit 32 refers to the train table 43 (FIG. 9) and specifies that the train 2 that is about to enter the platform 4 is a rapid train bound for Kawasaki on the Nanbu Line.

  Thereafter, message generation processing is performed by the generation unit 33 and the transmission unit 22 (step S4). In the message transmission process, the generation unit 33 generates a display request and transmits the display request via the transmission unit 22. Details of the message transmission process will be described in detail with reference to FIG. After the process of step S4, the processes after step S1 are repeated.

  On the other hand, in step S1, it is determined that the sensor ID and the train ID are not received from the sensor 6 that detects the start of entering the home 4 (No in step S1). In this case, the specifying unit 32 determines whether the sensor ID and the train ID are received from the sensor 6 that detects the end of entry into the home 4 using the sensor table 41 (FIG. 8) (step S5). When the sensor ID and the train ID are not received from the sensor 6 that detects the end of entry to the home 4, the specifying unit 32 ends the process (No in step S5). On the other hand, when the sensor ID and the train ID are received from the sensor 6 that detects the end of the entry to the home 4, the specifying unit 32 displays information on the type, line number, and direction associated with the sensor ID in the received packet. Obtain (Yes in step S5, step S6). Next, the specifying unit 32 refers to the train table 43 and acquires route name, type, and destination information associated with the train ID in the received packet (step S7). Thereafter, the release process is performed by the generation unit 33 and the transmission unit 22 (step S8). In the cancellation process, the generation unit 33 generates a cancellation request for requesting cancellation of screen display for alerting. The transmission unit 22 transmits the release request generated by the generation unit 33. Details of the cancellation processing will be described in detail with reference to FIG. After the process of step S8, the processes after step S1 are repeated.

  FIG. 13 is a flowchart illustrating an example of display request transmission processing. FIG. 13 describes in detail an example of the process performed in step S4 of FIG. In FIG. 13, a constant N represents the total number of mobile terminals 50 that are destinations of display requests. The variable n is used for counting the number of mobile terminals 50 that are the target of the display request transmission process.

  First, the generation unit 33 selects the mobile terminal 50 that is connected to the access point 8 that forms a communication area in the home 4 where the train 2 enters (step S20). For example, when AP1 and AP2 form a communication area in the home 4 where the train 2 enters, the mobile terminals 50a to 50c in FIG. 7 are selected as display request transmission targets. The generation unit 33 sets the variable n to 1 (step S21). The generation unit 33 acquires the activation status and movement status of the user application in the n-th mobile terminal 50 among the mobile terminals 50 specified as the transmission destination of the display request from the connected terminal table 42 (FIG. 7). (Step S22). For example, assume that the mobile terminal 50 to be processed is the mobile terminal 50c in FIG. In this case, the generation unit 33 specifies that the processing target mobile terminal 50c is in the process of starting the user application but has not moved.

  The generation unit 33 determines a message for requesting display on the mobile terminal 50 and a display method ID for identifying the display method of the message according to the combination of the application activation status and the movement status of the nth mobile terminal 50. . When determining the message and the display method ID, the generation unit 33 refers to the message table 45 (step S23). For example, in the mobile terminal 50c, the application is being activated, but has not moved, so that the message table 45 in FIG. One message is used. The display method ID notified to the mobile terminal 50c is D2. Since the mobile terminal 50c holds the display setting table 71 shown in FIG. 11, when the display method ID = D2 is notified to the mobile terminal 50c as described later, the mobile terminal 50c is displayed at the top of the screen. It can be determined that it is requested to display information in two lines.

  The generation unit 33 determines whether a replacement character string is included in the message that requests the mobile terminal 50 to display (step S24). When a replacement character string is included in a message requesting display to the mobile terminal 50, the generation unit 33 embeds information such as a route name, type, and destination acquired from the train table 43 in the message. A message for display is generated (Yes in step S24, step S25). For example, No. used when generating a display request to the mobile terminal 50c. Since the message 1 is “You will be able to go to the XX line with the XX line.”, It contains a replacement character string. Therefore, the generation unit 33 embeds the information acquired in steps S2 and S3 in FIG. Here, “○ line” is the number of the platform where the train enters, “○ line” is the name of the route, and “To ○○○○” is the type and destination information of the entering train. . When a packet including information of sensor ID = 001-1 and train ID = T3 is transmitted to the communication device 20, the specifying unit 32 specifies that the rapid service of the Nanbu Line to Kawasaki is entering the first line. Has been. Therefore, the generation unit 33 generates a message “Nambu Line Rapid Kawasaki bound for Line 1” by the replacement process.

  The generation unit 33 generates a display request including a display message and a display method ID, and transmits the display request to the address assigned to the processing target mobile terminal 50 via the transmission unit 22 (step S26). ). For example, the generating unit 33 transmits a display request including a message “Nambu Line Rapid Kawasaki bound for Line 1” and information of display method ID = D2 to the mobile terminal 50c. The generation unit 33 can specify the address assigned to the mobile terminal 50 c using the connected terminal table 42. Thereafter, the generation unit 33 updates the transmission state in the connected terminal table 42 for the mobile terminal 50 that has transmitted the display request (step S27). For example, when a display request is transmitted to the mobile terminal 50c, the transmission state in the entry of the mobile terminal 50c is set to “sent” as shown in FIG.

  The generation unit 33 compares the variable n with the constant N (step S28). If the variable n is not equal to or greater than the constant N, the generation unit 33 determines that the processing for all the mobile terminals 50 that are the display request transmission destinations has not been completed, increments the variable n by 1, and then proceeds to step S22. Return (No in step S28, step S29). On the other hand, when the variable n is equal to or greater than the constant N, the generation unit 33 determines that the processing for all the mobile terminals 50 that are the transmission destinations of the display request is completed, and returns to step S1 in FIG. 12 (in step S28). Yes).

  On the other hand, when it is determined in step S24 that the replacement character string is not included in the message requesting display to the mobile terminal 50, the generation unit 33 performs the processing after step S26 (No in step S24). ). For example, assume that the mobile terminal 50 to be processed is the mobile terminal 50a in FIG. In this case, the mobile terminal 50a to be processed is in the process of being activated while the user application is being activated. For this reason, the mobile terminal 50a has the message table 45 No. The message of 2 and the display method of display method ID = D1 are applied. In this case, the message does not include a replacement character string. For this reason, the generation unit 33 transmits a display request including the message “The train is coming. Please be careful” and the display method ID = D1 to the mobile terminal 50a.

(4) Display Processing on Mobile Terminal 50 Hereinafter, an example of processing performed on the mobile terminal 50 will be described separately for each usage status of the mobile terminal 50. In the following description, it is assumed that the mobile terminal 50 holds the display setting table 71 shown in FIG.

(4.1) When movement is not observed during the processing of the user application The mobile terminal 50 that is processing the user application but is determined not to be moving displays a display method ID = D2 together with a display message. A display request including the information is transmitted.

  When receiving the display request, the receiving unit 53 of the mobile terminal 50 outputs the display request to the display processing unit 63. When the display processing ID is extracted from the display request, the display processing unit 63 searches the display setting table 71 using the extracted display method ID as a key. Display method ID = D2 is associated with a display method for displaying in two lines at the top. Therefore, the display processing unit 63 generates a display screen for displaying the message notified by the display request in two lines above the display requested by the application processing unit 64. At this time, the display processing unit 63 may appropriately change the display magnification of the image input from the application processing unit 64 so that the display by the application does not overlap the position where the message is displayed. The display processing unit 63 displays the generated display screen on the screen of the display device 114. In other words, the display method ID = D2 can be used as a display method ID for designating that the display message is displayed so as not to overlap with the display by the user application.

  G11 in FIG. 14 is a diagram illustrating a display example of the screen on the mobile terminal 50c that has received the display request including the information of the display method ID = D2. As described with reference to step S25 in FIG. 13 and the like, the mobile terminal 50c is assumed to be notified of the message “Nambu Line Rapid Kawasaki is coming to Line 1.” Since the user of the mobile terminal 50c is looking at the screen of the mobile terminal 50c in order to perform the processing of the user application, it is expected that the displayed message is viewed as shown in G11.

  For the user of the mobile terminal 50 that is executing the user application but has not moved, the user application is processed while standing in the station or sitting on a chair provided in the station. Is assumed. In these cases, it is considered that there is a low possibility that an imminent danger will occur to the user of the mobile terminal 50 as the train 2 enters the home 4. For this reason, the communication device 20 transmits a display request for performing a display as shown in G11 to the mobile terminal 50 in order to make it difficult to prevent the user from processing while notifying the user of the arrival of the train.

(4.2) In the case of a mobile terminal 50 that is in the process of a user application and is moving A display method is displayed on the mobile terminal 50 that is being processed in a user application and that is determined to be moving together with a display message. A display request including information of ID = D1 is transmitted. When the display processing unit 63 acquires a display request via the receiving unit 53, the display processing unit 63 extracts a display method ID from the acquired display request. The display processing unit 63 searches the display setting table 71 using the extracted display method ID as a key so that the display method ID = D1 is associated with a display method that is displayed in a large pop-up at the center of the screen. recognize. Therefore, the display processing unit 63 performs a pop-up display so as to stand out in the center of the screen in front of the display requested by the application processing unit 64, and displays the notified message in the pop-up window. Note that the size of the pop-up window, the size of the font of the message displayed in the pop-up window, and the like are stored in the storage unit 70 in advance.

  G12 in FIG. 14 is a diagram for explaining a display example of a screen on the mobile terminal 50a that has received the display request including the information “display method ID = D1”. Note that, as described with reference to FIG. 13, it is assumed that the message “Train is coming. Please be careful.” Has been notified to the mobile terminal 50a. In the example shown in G12, the user of the mobile terminal 50a activates the user application, but a large pop-up window is displayed so as to overlap the screen of the user application. Although the size of the pop-up window is adjusted according to the implementation, it is desirable that the pop-up window be displayed in such a size that the display by the user application is hidden to the extent that it is difficult to continue the processing of the user application. In the example of G12, the display is so large that almost half of the display by the user application is hidden, so that even a user who is concentrating on the processing of the user application can effectively visually recognize the alert message. Can be made. Further, since the message does not include detailed information and is limited to information informing the danger, it is easier for the user to recognize the danger than the display shown in G11 or the like.

  The display shown in G12 is applied to the mobile terminal 50 that is executing the user application and is moving. That is, the user of the mobile terminal 50 to which the display shown in G12 is applied is executing the user application while moving. Passengers who move when a train arrives inside a station often move the end of the platform 4 especially when the platform 4 is congested. Moreover, even if it is moving in the center of the home 4, it is easy for the user to be dangerous because other passengers move as the train arrives. For this reason, the communication device 20 transmits a display request for requesting that the user's mobile terminal 50 that is processing the user application while moving to display a notice of danger so as to stand out on the screen.

(4.3) In the case of the mobile terminal 50 in which the user application is not activated A display request including information of display method ID = D3 is transmitted to the mobile terminal 50 in which the user application is not activated, together with a display message. The When the display processing unit 63 of the mobile terminal 50 extracts the display method ID = D3 from the display request, the display processing unit 63 searches the display setting table 71 using the extracted display method ID as a key. Display method ID = D3 is associated with a display method for displaying in two lines in the center. Therefore, the display processing unit 63 generates a display screen for displaying the message notified by the display request in two lines, superimposed on the display of the screen being displayed. The display processing unit 63 displays the generated display screen on the screen of the display device 114.

  G21 in FIG. 15 is a diagram for explaining a display example of a screen on the mobile terminal 50 that has received a display request including information of display method ID = D3. Hereinafter, it is assumed that the mobile terminal 50d has received a display request including information of display method ID = D3. It is assumed that the mobile terminal 50d is notified of a message “Train is coming. Please be careful.” In the example shown in G21, since the user of the mobile terminal 50d has not activated the user application, even if a message is displayed at the center of the screen, it is difficult to hinder the user's processing. For this reason, the communication device 20 transmits a display request for display as shown in G21 to the mobile terminal 50.

(4.4) In the case of the mobile terminal 50 located outside the home where the entry of the train 2 is confirmed In the communication device 20, the generation unit 33 is connected to the home 4 in the home where the entry of the train 2 is confirmed. The mobile terminal 50 that does not exist is not specified as the transmission target of the display request. For this reason, the display request is not transmitted to the mobile terminal 50 that is not connected to the home 4 in the home where the entry of the train 2 is confirmed. For this reason, even if the train 2 enters the home 4, the mobile terminal 50 that is not connected to the home 4 in the home where the train 2 has been confirmed to enter, as shown in G22 in FIG. No display is done.

(5) Release Processing FIG. 16 is a flowchart for explaining an example of message release processing. FIG. 16 describes in detail an example of the process performed in step S8 of FIG. That is, when a sensor ID and a train ID are notified from the sensor 6 that detects the end of entry to the home 4, the process shown in FIG. 16 is performed.

  The generation unit 33 refers to the connected terminal table 42 to identify the mobile terminal 50 that is set to “transmission state = transmitted” (step S41). The generation unit 33 acquires the address of the mobile terminal 50 selected as the processing target from the connected terminal table 42 (step S42). The generation unit 33 generates a release request with the acquired address as a destination. Here, the release request is an arbitrary control packet that can notify the mobile terminal 50 that the display of the message requested by the display request is to be terminated. The generation unit 33 transmits a release request via the transmission unit 22 (step S43). The generation unit 33 sets the transmission state associated with the mobile terminal 50 that has transmitted the release request to “untransmitted” in the connected terminal table 42 (step S44). The generation unit 33 determines whether or not the updated connected terminal table 42 includes the mobile terminal 50 that is set to transmission state = transmitted (step S45). When there is the mobile terminal 50 set to “transmission state = transmitted”, the generation unit 33 repeats the processing from step S42 onward (Yes in step S45). On the other hand, when there is no mobile terminal 50 that is set to transmit state = transmitted, the generation unit 33 ends the process (No in step S45). For example, when the connected terminal table 42 is in the state illustrated in FIG. 7, the generation unit 33 ends the process when transmitting a release request to both the mobile terminal 50 a and the mobile terminal 50 c.

  Next, the process of the mobile terminal 50 when a cancellation request is received will be described. When receiving the release request, the reception unit 53 outputs the release request to the display processing unit 63. When acquiring the release request, the display processing unit 63 determines whether an image for alerting is being displayed. When the image for alerting is being displayed, the display processing unit 63 interrupts the display of the message for alerting.

  FIG. 17 is a flowchart for explaining an example of display processing performed in the mobile terminal 50. Referring to FIG. 17, an example of processing performed in the mobile terminal 50 while the mobile terminal 50 is in a state in which the mobile terminal 50 can communicate with the communication device 20 via the access point 8 includes display request processing and cancellation request processing. Including.

  When the connection processing unit 61 in the mobile terminal 50 determines that it is not connected to the access point 8 in the station premises, the connection processing unit 61 issues a stop request for requesting the display processing unit 63 to stop displaying the alert message. Output. It is determined whether a stop request is output from the connection processing unit 61 (step S51). When the stop request is not output to the display processing unit 63, the connection processing unit 61 acquires the activation status and movement status of the user application on the mobile terminal 50 (step S52). Here, the activation status of the user application is acquired from the application processing unit 64, and the movement status is acquired from the determination unit 62. The connection processing unit 61 performs processing for transmitting the activation status and movement status of the user application to the communication device 20 (step S53).

  The display processing unit 63 determines whether the information notified from the communication device 20 includes a message and a display method ID (step S54). When the message and the display method ID are notified from the communication device 20, the mobile terminal 50 has received the display request (Yes in step S54). The display processing unit 63 specifies the display method associated with the display method ID from the display setting table 71 (step S55). The display processing unit 63 performs processing for displaying the message notified from the communication device 20 using the specified display method (step S56). Thereafter, the processing after step S51 is repeated.

  If the message and the display method ID are not included in the information notified from the communication device 20, the display processing unit 63 determines whether a release request is received from the communication device 20 (No in step S54, step S57). . When the cancellation request has been received from the communication device 20, the display processing unit 63 ends the display of the alert message and returns to Step S51 (Yes in Step S57, Step S58). When the cancellation request has not been received from the communication device 20, the processes after step S51 are repeated (No in step S57).

  On the other hand, it is assumed that a stop request is output to the display processing unit 63 in step S51 (Yes in step S51). In this case, the display processing unit 63 determines whether a warning message is being displayed (step S59). If a warning message is being displayed, the display processing unit 63 ends the display of the warning message (Yes in step S59, step S60). When the alert message is not being displayed, the display processing unit 63 ends the process (No in step S59).

  FIG. 18 is a flowchart for explaining an example of communication processing performed in the mobile terminal 50. In the example of FIG. 18, it is assumed that the mobile terminal 50 periodically receives a response request from the access point 8 that is the connection destination. It is assumed that the response request is a control packet requesting to notify the communication device 20 of the latest status of the mobile terminal 50. Upon receiving the response request, the mobile terminal 50 notifies the communication device 20 of the display status, application activation status, movement status, and the like of the mobile terminal 50 as response information.

  The mobile terminal 50 starts processing of an application (warning application) that issues a warning notification (step S71). When the user carrying the mobile terminal 50 enters the station, the receiving unit 53 determines whether or not WiFi radio waves have been received from the access point 8 installed in the station premises with a communicable intensity (step S72). If the WiFi radio wave is not received at a communicable intensity, the mobile terminal 50 waits and returns to step S72 (No in step S72). When the WiFi radio wave is received at a communicable intensity, the connection processing unit 61 transmits a connection request, a terminal ID for identifying the mobile terminal 50, and an address assigned to the mobile terminal 50 to the communication device 20 ( Step S73). The connection processing unit 61 determines whether a response request has been received from the access point 8 (step S74). When the response request is received, the connection processing unit 61 generates response information including the user application activation status and the movement status at the mobile terminal 50 and transmits the response information to the communication device 20 via the transmission unit 52 (step S31). Yes in S74, step S75). Thereafter, the processes after step S74 are repeated.

  When the response request has not been received, the connection processing unit 61 determines whether a predetermined period has elapsed since the previous response request (No in step S74, step S76). If the predetermined period has not elapsed since the previous response request, the process returns to step S74 (No in step S76). When the predetermined period has elapsed since the previous response request, the connection processing unit 61 determines that the access point 8 in the station is not connected (Yes in step S76). In this case, the connection processing unit 61 causes the display processing unit 63 to stop the warning application (step S77). Thereafter, the processing after step S71 is repeated.

  As described above, according to the first embodiment, a warning message is displayed on the screen of the mobile terminal 50 that is performing the display process when the train 2 enters the home 4. For this reason, it is possible to effectively alert the user who is using the mobile terminal 50 to the entry of the train 2.

  Furthermore, in the display method described in the first embodiment, when the user carrying the mobile terminal 50 is moving, the user is alerted with a pop-up display so that the user can move while operating the mobile terminal 50. It is possible to effectively alert the user who is doing this. Further, when a user who is not moving is using a user application, a warning display is displayed at the end of the screen so as not to hinder the user's application processing and screen confirmation. For this reason, even when the display method described in the first embodiment is used, the operability of the mobile terminal 50 is ensured for a user who is unlikely to be in danger.

<Second Embodiment>
In the second embodiment, the communication device 20 notifies the mobile terminal 80 of a message ID for identifying a display message without generating a display message. The mobile terminal 80 that has received the notification generates and displays a message to be displayed.

  FIG. 19 is a diagram illustrating an example of the configuration of the mobile terminal 80 according to the second embodiment. The mobile terminal 80 includes a communication unit 51, a control unit 81, a storage unit 70, and a display device 114. The control unit 81 includes a generation unit 82, and further includes a connection processing unit 61, a determination unit 62, a display processing unit 63, and an application processing unit 64. The communication unit 51 includes a transmission unit 52 and a reception unit 53. The storage unit 70 stores a display setting table 71 and a message table 72. The message table 72 stores the text of the message in association with the message ID. An example of the message table 72 will be described later.

  The generation unit 82 reads a message to be displayed from the message table 72 using the message ID included in the display request. When the replacement character string is included in the message identified by the message ID notified from the communication device 20, the display request includes a character string such as a route name used for the replacement process. Therefore, the generation unit 82 generates a message displayed for alerting using the message specified using the message ID and the information included in the display request. The display processing unit 63 uses the message generated by the generation unit 82 as a display target message.

  Processing performed by the communication unit 51, the connection processing unit 61, the determination unit 62, the application processing unit 64, and the display device 114 is the same as that in the first embodiment. The display setting table 71 is the same as that in the first embodiment. The generation unit 82 is realized by the processor 111.

  FIG. 20 is a diagram for explaining an example of the message table 72. In the message table 72, a message ID for identifying a message to be displayed on the screen for alerting is associated with a message identified by each message ID. In the example of FIG. 20, the message ID = M1 is associated with a message that “the XX line goes to the XX line”. Here, a circle in the message is a variable for replacing the specified train 2 information. The procedure when the variable part of the message is replaced will be described in detail in the explanation of the example of the message display process (FIG. 23). Both message ID = M2 and message ID = M3 are associated with the message “Train is coming. Please be careful.”

  FIG. 21 is a diagram illustrating an example of the message table 45 used in the second embodiment. The message table 45 is used in the communication device 20. In the second embodiment, the message table 45 includes a message ID for identifying a message that is requested to be displayed on the screen for alerting the mobile terminal 80, conditions for using each message, and message display. A method is included.

  Also in the second embodiment, the conditions for using each message are represented by using the state of each mobile terminal 80 specified in the connected terminal table 42. Further, the message ID and the display method ID to be applied are determined according to each condition. For example, when the notification destination mobile terminal 80 is in the process of starting the user application and has not moved, the message ID = M1 and the display method ID = D2 are specified. On the other hand, when the mobile terminal 80 of the notification destination is running and the user application is moving, the message ID = M2 and the display method ID = D1 are specified. Similarly, when the user application is not activated on the mobile terminal 80 that is the notification destination, the message ID = M3 and the display method ID = D3 are specified. Also in the second embodiment, depending on the implementation, information on the display method corresponding to the display method ID may also be included in the message table 45 for the purpose of facilitating operator settings.

  FIG. 22 is a flowchart illustrating an example of message transmission processing. An example of processing when the communication apparatus 20 generates a display request to be transmitted to the mobile terminal 80 will be described with reference to FIG. Here, the processes from the time when the communication device 20 receives a packet from the sensor 6 that detects the start of entering the train 2 to the time when the display request transmission process is started are the steps S1 to S3 described with reference to FIG. It is the same. In FIG. 22, a constant N represents the total number of mobile terminals 80 that are destinations of display requests. The variable n is used for counting the number of mobile terminals 80 that are the targets of the display request transmission process.

  The generation unit 33 selects the mobile terminal 80 connected to the access point 8 that forms a communication area in the home 4 where the train 2 enters (step S80). The generation unit 33 sets the variable n to 1 (step S81). The generation unit 33 acquires the activation status and movement status of the user application in the nth mobile terminal 80 among the mobile terminals 80 specified as the transmission destination of the display request from the connected terminal table 42 (step S82). .

  The generation unit 33 determines a message ID of a message that is requested to be displayed on the mobile terminal 80 and a display method ID that identifies the message display method, according to the combination of situations acquired for the nth mobile terminal 80. When determining the message ID and the display method ID, the generation unit 33 refers to the message table 45 (FIG. 21) in the communication device 20 (step S83). For example, it is assumed that the mobile terminal 80c is starting up a user application but not moving. In this case, message ID = M1 and display method ID = D2 are selected as information notified to the mobile terminal 80c.

The generation unit 33 includes the message ID and the display method ID in the display request transmitted to the mobile terminal 80 to be processed, and further includes information specified from the sensor ID and the train ID notified from the sensor 6. Here, the information specified from the sensor ID and the train ID notified from the sensor 6 is information acquired in steps S2 and S3 in FIG. 12, such as a route name, a train type, and a destination. For example, when a packet including information of sensor ID = 001-1 and train ID = T1 is transmitted to the communication device 20, the high speed of the Nanbu Line bound for Kawasaki is entering the first line by the specifying unit 32. Has been identified. Therefore, the generation unit 33 generates a display request including the following information addressed to the mobile terminal 80c that is starting up the user application but has not moved.
Display request Message ID: M1
Display method ID: D2
Line: Line 1 Route name: Nambu Line Type: Rapid Destination: Kawasaki Generation Unit 33 transmits the generated display request to the address assigned to the mobile terminal 80 to be processed (step S84). Note that the generation unit 33 specifies the address assigned to the mobile terminal 80 using the connected terminal table 42.

  Thereafter, the generation unit 33 updates the transmission state in the connected terminal table 42 for the mobile terminal 80 that has transmitted the display request (step S85). The generation unit 33 compares the variable n with the constant N (step S86). If the variable n is not equal to or greater than the constant N, the generation unit 33 determines that the processing for all the mobile terminals 80 that are the transmission destinations of the display request is not completed, increments the variable n by 1, and then proceeds to step S82. Return (No in step S86, step S87). On the other hand, when the variable n is equal to or greater than the constant N, the generation unit 33 determines that the processing for all the mobile terminals 80 that are the transmission destinations of the display request is completed, and returns to step S1 in FIG. 12 (in step S86). Yes).

  Note that the processing performed from when the communication device 20 receives a packet from the sensor 6 that detects the end of entry of the train 2 to the release processing is the same as steps S5 to S8 described with reference to FIG.

  FIG. 23 is a flowchart for explaining an example of display processing performed in the mobile terminal 80. The processing in steps S91 to S93 in FIG. 23 is the same as the processing in steps S51 to S53 described with reference to FIG.

The generation unit 82 determines whether a display request has been received from the communication device 20 (step S94). When the display request is received, the generation unit 82 acquires a message associated with the message ID from the message table 72 (step S95). For example, it is assumed that the mobile terminal 80c receives a display request including the following information.
Display request Message ID: M1
Display method ID: D2
Line: Line 1 Route name: Nambu Line Type: Rapid Destination: Kawasaki In this case, in the mobile terminal 80c, the generation unit 82 is associated with the message ID = M1 “To line ○ to ○ line ○○ ○○ Message is received.

  Next, the generation unit 82 determines whether a replacement character string is included in the message (step S96). When a replacement character string is included in the acquired message, the generation unit 82 generates a display message by embedding the route name, type, and destination information acquired from the display request in the message. (Yes in step S96, step S97). In the process of step S97, the replacement character string is replaced with the information notified by the display request. “O-Line” is the number of the platform where the train enters, “O-Line” is the name of the route, and “To OO XX” is the information of the type and destination of the approaching train. For this reason, in the mobile terminal 80c, the generation unit 82 generates a message “Nambu Line Rapid bound for Kawasaki for the first line”. The generation unit 82 outputs the generated message to the display processing unit 63.

  The display processing unit 63 specifies the display method associated with the display method ID from the display setting table 71 (step S98). The display processing unit 63 performs processing for displaying the message input from the generation unit 82 using the specified display method (step S99). For example, in the example of the mobile terminal 80c, the display method ID = D2. In the display setting table 71 (FIG. 11), a display method for displaying in two lines is associated with the display method ID = D2. For this reason, a display as shown in G11 of FIG. 14 is performed on the screen of the mobile terminal 80c. When the process of step S99 ends, the processes after step S91 are repeated.

  On the other hand, when it is determined in step S96 that the replacement target character string is not included in the message to be displayed, the generation unit 82 outputs the acquired message to the display processing unit 63 (No in step S96). For this reason, the process after step S98 is performed. For example, it is assumed that the mobile terminal 80a has acquired a display request including message ID = M2 and display method ID = D1. In this case, the generation unit 82 uses the message table 72 (FIG. 20) to specify that the message to be displayed is “Train comes. Please be careful”. Then, since the display target message does not include the character string to be replaced, the generation unit 82 outputs the acquired character string to the display processing unit 63. On the other hand, since the display processing unit 63 has the display method ID = D1, the display setting table 71 (FIG. 11) is used to recognize that a display method for displaying a large pop-up at the center of the screen is required. In this case, a display as shown by G12 in FIG. 14 is performed. The processes in steps S100 to S103 in FIG. 23 are the same as the processes in steps S57 to S60 described with reference to FIG.

  Also in the case of using the second embodiment, as in the first embodiment, it is possible to effectively alert the user who is using the mobile terminal 80 to the approach of the train 2. In addition, since the display method is changed according to the usage status of the mobile terminal 80 and the movement status of the user, display according to the magnitude of the danger approaching the user is performed.

  In the case of the second embodiment, since the message is generated by the mobile terminal 80, the capacity of the message transmitted from the communication device 20 is smaller than that of the first embodiment. For this reason, the data amount transmitted / received in a network can be reduced. This is effective when there are many mobile terminals 80 communicating via the access point 8.

<Third Embodiment>
In the third embodiment, a plurality of access points 8 are installed in the home 4, and each access point 8 forms a communication area 9 so as to include the vicinity of the entrance position of one train on the communication area. An example of the case will be described. In this case, the position of the mobile terminal 50 can be specified more accurately depending on which access point 8 is connected.

  FIG. 24 is a diagram for explaining an example of an installation method of the access point 8. In the example of FIG. 24, the first line and the second line are installed in the home 4. It is assumed that eight access points 8 (8a to 8h) are installed in the home 4. The access point 8a forms a communication area 9a, and the ID of the access point 8a is AP1. Similarly, the access point 8b forms a communication area 9b, the access point 8c forms a communication area 9c, and the access point 8d forms a communication area 9d. For this reason, the first line of the home 4 is covered with the access points 8a to 8d. The access point 8b has an ID of AP2, the access point 8c has an ID of AP3, and the access point 8d has an ID of AP4.

  The access point 8e forms a communication area 9e, the access point 8f forms a communication area 9f, the access point 8g forms a communication area 9g, and the access point 8h forms a communication area 9h. For this reason, the second line of the home 4 is covered with the access points 8e to 8h. The ID of the access point 8e is AP5, the ID of the access point 8f is AP6, the ID of the access point 8g is AP7, and the ID of the access point 8h is AP8.

  FIG. 25 is a diagram for explaining an example of the installation position information 46. The installation position information 46 is a table for uniquely identifying the number line where each access point is installed, and the identifier (access point ID) of each access point is associated with the number line. FIG. 25 shows an example where the access point 8 is installed as shown in FIG. For this reason, access points 8 (8a to 8d) having access point identifiers AP1 to AP4 are associated with the first line. Similarly, access points 8 (8e to 8h) having access point identifiers AP5 to AP8 are associated with the second line.

  Also in the third embodiment, processes such as establishment of communication between the mobile terminal 50 and the communication device 20, identification of the train 2 that has entered, and identification of the number line on which the train 2 has entered are performed in the first embodiment. It is done in the same way as the form. In the third embodiment, the generation unit 33 also connects the mobile terminal 50 connected to the access point 8 installed on the number line where the train 2 is specified as the display request transmission destination. Select. For example, it is assumed that the communication device 20 is notified that the train 2 starts to enter the first line. Then, the generation unit 33 uses the installation position information 46 to perform display processing on the screen among the mobile terminals 50 connected to any of the access points identified by AP1 to AP4. 50 is selected as a display request transmission destination. Here, it is assumed that the mobile terminal 50a and the mobile terminal 50b are connected to the access point 8a (AP1), and the mobile terminal 50c is connected to the access point 8b (AP2). Furthermore, it is assumed that the mobile terminal 50d is connected to the access point 8f (AP6).

  In this case, since the mobile unit 50a to 50c is connected to the access point installed on the first line among the mobile terminals 50a to 50d, the generation unit 33 displays the mobile terminals 50a to 50c as the transmission destination of the display request. And After the display request transmission destination is selected, the processing for the communication device 20 to generate and transmit the display request is the same as in the first embodiment. Further, the processing of the mobile terminal 50 that has received the display request is the same as in the first embodiment.

  In the above description, communication between the mobile terminal 50 and the communication device 20 has been described as an example. However, the third embodiment may be applied to communication between the mobile terminal 80 and the communication device 20. In this case, after the transmission destination of the display request is selected, the processing for the communication device 20 to generate and transmit the display request is the same as in the second embodiment. The display process at the mobile terminal 80 is the same as that in the second embodiment.

  In the third embodiment, by concentrating the communication area 9 of the access point 8 at the end of the home 4, it is possible to efficiently alert the user at the end of the home 4. Furthermore, by determining the transmission destination of the display request according to the installation position of the access point 8 to which the mobile terminal 50 is connected, it is more efficient to alert the entrance of the train 2 according to the position of the mobile terminal 50. Can be done.

<Others>
The embodiment is not limited to the above, and can be variously modified. Some examples are described below.

  FIG. 26 is a diagram illustrating an example of an access point installation method. In FIG. 26, as in FIG. 24, access points 8a to 8h are installed at the end of the home 4, and an access point 8k that includes the entire home 4 in the communication area is installed. The access point 8k forms a communication area 9k. The access points 8a to 8h set the communication area 9 narrow so that the user located at the end of the home 4 can be specified. In the access points 8a to 8h, the communication area 9 having directivity is generated so that the communication area 9 having a long distance in the direction parallel to the home 4 is as much as possible. In this case, a user located near the center of the home 4 performs communication via the access point 8k. When the user moves to the end side of the home 4 and the mobile terminal 50 can communicate with any of the access points 8a to 8h installed at the end of the home, the communication device is connected via the access points 8a to 8h. 20 is notified of information of the mobile terminal 50. The acquisition unit 31 records information acquired via the access points 8a to 8h in the connected terminal table 42 as information on the mobile terminal 50 that may perform notification processing. Thereafter, it is assumed that the start line of the train is detected by the sensor 6 and the number line on which the train 2 enters is specified by the same processing as in the first embodiment. Then, the generation unit 33 displays the mobile terminal 50 that can communicate with the access point 8 installed on the line where the train 2 enters among the mobile terminals 50 recorded in the connected terminal table 42, as a transmission destination of the display request. To decide.

  The above description is merely an example of the embodiment and can be modified according to the implementation. For example, the information elements and display examples in the table used in the above description are examples, and can be arbitrarily changed according to the implementation. Moreover, the access point 8 may be installed in places other than the platform 4 in the station premises.

  When entrance management to the station premises is performed by an application in the mobile terminal 50 or the mobile terminal 80, the warning application acquires information indicating whether the user has entered the station from the application used for entrance management. You can also. In this case, even if the mobile terminal 50 or the mobile terminal 80 can communicate with the access point 8 installed at the platform 4 of the station, if the mobile terminal 50 or the mobile terminal 80 is not entering the station, the connection processing unit 61 connects the communication device 20. On the other hand, it is set not to notify the mobile terminal information. Then, the information on the mobile terminal 50 and the mobile terminal 80 that have not entered is not stored in the connected terminal table 42 held by the communication device 20. For this reason, it is possible to prevent a display request from being transmitted from the communication device 20 to the mobile terminal 50 or the mobile terminal 80 that has not entered.

  The communication device 20 may determine the position of the mobile terminal 50 in more detail using the status of radio waves received by the mobile terminal 50 from the access point 8 or the like. For example, when the communication device 20 acquires the statistical information of the radio wave reception pattern from the mobile terminal 50, the home where the reception pattern that matches the statistical information is obtained using the installation position of each access point 8 and the output radio wave intensity. 4 may be determined by the communication device 20. Further, the communication device 20 obtains the phase difference of the received radio wave between the antennas from the mobile terminal 50, thereby determining the orientation and position of the terminal using the installation position of each access point 8 and the radio wave intensity output. Also good. Further, the communication device 20 may determine the position of the mobile terminal 50 from the difference in reception time using the reception time of specific information. When the position of the mobile terminal 50 is accurately determined by such processing, the communication device 20 may perform message selection, determination of whether to transmit a display request, or the like according to the position of the mobile terminal 50. it can. The same applies when the mobile terminal 80 is used instead of the mobile terminal 50.

  Further, the display method of the display message included in the reception request received from the communication device 20 may be modified so that the mobile terminal 50 or the mobile terminal 80 determines according to the situation of the mobile terminal. In this case, the mobile terminal 50 or the mobile terminal 80 determines whether or not to pop up the display message according to the activation status or the movement status of the user application in the own device. In this case, the mobile terminal 50 and the mobile terminal 80 do not have to notify the communication device 20 of the activation status or movement status of the user application, and the communication device 20 does not notify the mobile terminal of the message display method. May be. For this reason, the amount of data transmitted and received in the network is reduced.

  Further, the mobile terminal 50 or the mobile terminal 80 that has received the display request may be modified so as to end the display of the display message after displaying the display message for a predetermined period. In this case, since the display of the display message on the mobile terminal 50 or the mobile terminal 80 is canceled without sending a cancellation request from the communication device 20, the processing load on the communication device 20 is reduced.

The following additional notes are further disclosed regarding the embodiments including the first to third embodiments described above.
(Appendix 1)
For a mobile terminal communicating via any of a plurality of access points installed in a station, the mobile terminal identification information and the identifier of the access point to which the mobile terminal is connected are acquired in association with each other,
When the detection of the train is notified from a sensor that detects a train entering the platform of the station, the train is identified by identification information associated with an identifier of an access point that forms a communication area in the platform where the train enters. A notification program characterized by causing a communication device to perform a process of sending a display request to a mobile terminal to display a display message for calling attention to the train on the screen of the mobile terminal .
(Appendix 2)
From the mobile terminal that is communicating via any of the plurality of access points, further acquiring the movement status of the mobile terminal determined using vibrations observed at the mobile terminal,
If the target terminal that is the mobile terminal selected as the transmission destination of the display request is not moving, the display request includes information requesting to display the display message in the first display method,
When the target terminal is moving, the display request includes information requesting to display the display message by the second display method having a display area of the display message larger than that of the first display method. The notification program according to appendix 1, wherein the communication apparatus performs the process.
(Appendix 3)
From the mobile terminal that is communicating via any of the plurality of access points, further obtaining execution information of the application in the mobile terminal,
When the target terminal is executing an application and moving, information requesting that the display message be displayed over the area where display by the application is performed in the screen of the target terminal , Included in the display request,
When the target terminal is executing an application and not moving, the communication device includes a process for including, in the display request, information requesting to display the display message without overlapping the area. The notification program according to attachment 2, wherein the notification program is executed.
(Appendix 4)
When an identifier assigned to the train detected by the sensor is notified from the sensor, for each train entering the home, a table in which the train operation information is associated with the train identifier assigned to the train. Use to identify the train information detected,
The notification program according to any one of appendices 1 to 3, wherein the communication apparatus includes the specified operation information included in the display request.
(Appendix 5)
A receiver for receiving the packet;
Using the packet received by the receiving unit, for mobile terminals communicating via any of a plurality of access points installed in a station, the identification information of the mobile terminal and the connection destination of the mobile terminal An acquisition unit that associates and acquires an identifier of an access point;
When the detection of the train is notified from a sensor that detects a train entering the platform of the station, the train is identified by identification information associated with an identifier of an access point that forms a communication area in the platform where the train enters. A generation unit that generates a display request that requests a mobile terminal to display a display message for calling attention to the train on the screen of the mobile terminal;
A communication apparatus comprising: a transmission unit that transmits the display request.
(Appendix 6)
The acquisition unit further acquires the movement status of the mobile terminal determined using vibrations observed at the mobile terminal from the mobile terminal communicating via any of the plurality of access points,
The generator is
If the target terminal that is the mobile terminal selected as the transmission destination of the display request is not moving, the display request includes information requesting to display the display message in the first display method,
When the target terminal is moving, the display request includes information requesting to display the display message by the second display method having a display area of the display message larger than that of the first display method. The communication apparatus according to appendix 5, wherein:
(Appendix 7)
The acquisition unit further acquires execution information of an application on the mobile terminal from the mobile terminal communicating via any of the plurality of access points,
The generator is
When the target terminal is executing an application and moving, information requesting that the display message be displayed over the area where display by the application is performed in the screen of the target terminal , Included in the display request,
The display request includes information requesting that the display message be displayed without being superimposed on the area when the target terminal is executing an application and not moving. 6. The communication device according to 6.
(Appendix 8)
For each train that enters the home, the storage unit further stores the operation information of the train in association with the train identifier assigned to the train,
The said generation part includes the operation information of the detected train in the said display request using the train identifier allocated to the train which the said sensor detected. The appendix 5-7 characterized by the above-mentioned. Communication equipment.
(Appendix 9)
For a mobile terminal communicating via any of a plurality of access points installed in a station, the mobile terminal identification information and the identifier of the access point to which the mobile terminal is connected are acquired in association with each other,
When the detection of the train is notified from a sensor that detects a train entering the platform of the station, the train is identified by identification information associated with an identifier of an access point that forms a communication area in the platform where the train enters. A notification method, wherein a communication device performs a process of transmitting a display request for requesting a mobile terminal to display a display message for calling attention to the train on a screen of the mobile terminal.
(Appendix 10)
From the mobile terminal that is communicating via any of the plurality of access points, further acquiring the movement status of the mobile terminal determined using vibrations observed at the mobile terminal,
If the target terminal that is the mobile terminal selected as the transmission destination of the display request is not moving, the display request includes information requesting to display the display message in the first display method,
When the target terminal is moving, the display request includes information requesting to display the display message by the second display method having a display area of the display message larger than that of the first display method. The notification method according to appendix 9, wherein the communication device performs the process.
(Appendix 11)
From the mobile terminal that is communicating via any of the plurality of access points, further obtaining execution information of the application in the mobile terminal,
When the target terminal is executing an application and moving, information requesting that the display message be displayed over the area where display by the application is performed in the screen of the target terminal , Included in the display request,
When the target terminal is executing an application and not moving, the communication device includes a process for including, in the display request, information requesting to display the display message without overlapping the area. The notification method according to appendix 10, wherein the notification method is performed.
(Appendix 12)
When an identifier assigned to the train detected by the sensor is notified from the sensor, for each train entering the home, a table in which the train operation information is associated with the train identifier assigned to the train. Use to identify the train information detected,
The notification method according to any one of appendices 9 to 11, wherein the communication device performs a process of including the specified operation information in the display request.

2 train 4 home 6 sensor 8 access point 9 communication area 10 network 20 communication device 21, 51 communication unit 22, 52 transmission unit 23, 53 reception unit 30, 60, 81 control unit 31 acquisition unit 32 identification unit 33, 82 generation unit 40, 70 Storage unit 41 Sensor table 42 Connected terminal table 43 Train table 45 Message table 46 Installation position information 50, 80 Mobile terminal 61 Connection processing unit 62 Judgment unit 63 Display processing unit 64 Application processing unit 71 Display setting table 72 Message table 101, 111 Processor 102, 112 Memory 103, 113 Input device 104, 114 Output device 105, 117 Bus 106 Storage device 107 Portable storage medium drive device 108 Portable storage medium 109 Network interface 1 5 sensor 116 radio processing circuit

Claims (6)

For a mobile terminal communicating via any of a plurality of access points installed in a station, the mobile terminal identification information and the identifier of the access point to which the mobile terminal is connected are acquired in association with each other,
When the detection of the train is notified from a sensor that detects a train entering the platform of the station, the train is identified by identification information associated with an identifier of an access point that forms a communication area in the platform where the train enters. A notification program characterized by causing a communication device to perform a process of sending a display request to a mobile terminal to display a display message for calling attention to the train on the screen of the mobile terminal . From the mobile terminal that is communicating via any of the plurality of access points, further acquiring the movement status of the mobile terminal determined using vibrations observed at the mobile terminal,
If the target terminal that is the mobile terminal selected as the transmission destination of the display request is not moving, the display request includes information requesting to display the display message in the first display method,
When the target terminal is moving, the display request includes information requesting to display the display message by the second display method having a display area of the display message larger than that of the first display method. The notification program according to claim 1, wherein processing is performed by the communication device. From the mobile terminal that is communicating via any of the plurality of access points, further obtaining execution information of the application in the mobile terminal,
When the target terminal is executing an application and moving, information requesting that the display message be displayed over the area where display by the application is performed in the screen of the target terminal , Included in the display request,
When the target terminal is executing an application and not moving, the communication device includes a process for including, in the display request, information requesting to display the display message without overlapping the area. The notification program according to claim 2, wherein the notification program is executed. When an identifier assigned to the train detected by the sensor is notified from the sensor, for each train entering the home, a table in which the train operation information is associated with the train identifier assigned to the train. Use to identify the train information detected,
The notification program according to any one of claims 1 to 3, wherein the communication device is caused to perform a process of including the specified operation information in the display request. A receiver for receiving the packet;
Using the packet received by the receiving unit, for mobile terminals communicating via any of a plurality of access points installed in a station, the identification information of the mobile terminal and the connection destination of the mobile terminal An acquisition unit that associates and acquires an identifier of an access point;
When the detection of the train is notified from a sensor that detects a train entering the platform of the station, the train is identified by identification information associated with an identifier of an access point that forms a communication area in the platform where the train enters. A generation unit that generates a display request that requests a mobile terminal to display a display message for calling attention to the train on the screen of the mobile terminal;
A communication apparatus comprising: a transmission unit that transmits the display request. For a mobile terminal communicating via any of a plurality of access points installed in a station, the mobile terminal identification information and the identifier of the access point to which the mobile terminal is connected are acquired in association with each other,
When the detection of the train is notified from a sensor that detects a train entering the platform of the station, the train is identified by identification information associated with an identifier of an access point that forms a communication area in the platform where the train enters. A notification method, wherein a communication device performs a process of transmitting a display request for requesting a mobile terminal to display a display message for calling attention to the train on a screen of the mobile terminal.