JP2015079389A - Information providing device and mobile station - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a system which distributes information about a moving body such as an emergency vehicle, and also provides highly convenient service.SOLUTION: An information providing device comprises: a route information acquisition unit which acquires route information indicating a scheduled travel route of a moving body; a base station determination unit which determines a base station that includes at least a part of the scheduled travel route of the moving body in its radio communicative cell, on the basis of the route information; a timing determination unit which determines predicted timing at which the moving body passes through the cell range, on the basis of the route information and a position of the base station; and a broadcast control unit which controls base stations to broadcast a message including the predicted timing.

Description

  The present invention relates to an information providing apparatus and a mobile station.

Patent Document 1 describes a vehicle communication system that distributes encoded emergency vehicle information to communication devices for general vehicles in all cells on a planned travel route of an emergency vehicle.
Patent Document 1 JP 2003-256993 A

  It is desired to provide a more convenient service in a system that distributes information related to a moving body such as an emergency vehicle as described above.

  An information providing apparatus according to an aspect of the present invention includes a route information acquisition unit that acquires route information indicating a planned movement route of a mobile object, and the mobile object within a range of cells capable of wireless communication based on the route information. A base station identifying unit that identifies a base station including at least a part of the scheduled movement path, and a prediction timing at which the mobile body passes through the range of the cell based on the path information and the position of the base station. A timing determination unit for determining, and a broadcast control unit for simultaneously transmitting a message including the prediction timing from the base station.

  In the information providing apparatus, the timing determination unit may determine the prediction timing based on a cell range.

  In the information providing apparatus, the base station specifying unit specifies the first base station based on the route information, and the timing determining unit is configured to wirelessly transmit the first base station based on the route information and the position of the first base station. The first predictive timing at which the mobile body passes within the range of the communicable first cell is determined, the broadcast control unit simultaneously transmits a message including the first predictive timing from the first base station, and the timing determiner is Based on the path information and the position of the first base station, the first base station includes a message transmitted from the first base station after the reference period has elapsed since the message including the first prediction timing is transmitted from the first base station. The second prediction timing at which the mobile body passes within the range of one cell is determined, and the broadcast control unit broadcasts a message including the first prediction timing from the first base station. After the reference period has elapsed since the message from the first base station comprising a second prediction timing may be broadcast.

  In the information providing apparatus, the base station specifying unit specifies a second base station that is different from the first base station, and the timing determining unit is configured so that the second base station is wireless based on the path information and the position of the second base station. The broadcast control unit determines a third prediction timing at which the mobile body passes within the communicable second cell range, and simultaneously transmits a message including the first prediction timing from the first base station. May be transmitted simultaneously from the second base station.

  In the information providing apparatus, the broadcast control unit may cause the base station to simultaneously transmit a message further including the destination of the mobile unit and the identification information of the mobile unit.

  A mobile station according to an aspect of the present invention is a mobile station that displays a message including a predicted timing of movement of a mobile unit on a display unit, and the mobile unit is within a range of a cell capable of wireless communication in which the mobile station exists. A reception unit that receives a first message including a predicted timing of passing; and a notification control unit that displays the first message on a display unit. The reception unit receives a first message, and then the mobile station The second message including the prediction timing at which the mobile body passes within the range of the existing wireless communicable cell is received, and the notification control unit predicts the mobile body having the same first message and second message. Including the timing and when the difference between the position of the mobile station when the receiving unit receives the first message and the position of the mobile station when the receiving unit receives the second message is equal to or less than the reference difference, No Not displayed on the display unit of the sage.

  In the mobile station, the first message and the second message include identification information assigned every time the mobile starts, and the notification control unit includes the identification information included in the first message and the second message. When the included identification information matches, it may be determined that the first message and the second message include the prediction timing related to the same moving object.

  In the mobile station, the first message and the second message include movement information indicating a departure time, a departure place, and a destination of the mobile body, and the notification control unit indicates the movement information included in the first message. The departure point and destination indicated in the movement information included in the second message coincide with the departure point and destination indicated in the movement information included in the first message. When the time difference from the departure time indicated in the included movement information is equal to or less than the reference time difference, the second message may not be displayed on the display unit.

  In the mobile station, when the first message and the second message are messages for a plurality of mobile bodies that pass through the range of the cell in which the mobile station exists in the same time zone, One message according to the predicted timing of each of the message and the second message may be displayed on the display unit.

  The summary of the invention does not enumerate all the features of the present invention. In addition, a sub-combination of these feature groups can also be an invention.

It is a figure which shows an example of the whole structure of the information provision system which concerns on this embodiment. It is a figure which shows an example of the functional block of an information provision apparatus. It is a flowchart which shows the process sequence which an information provision apparatus broadcasts the message containing prediction timing to a base station. It is a figure which shows an example of the functional block of a mobile station. It is a flowchart which shows the process sequence of the mobile station at the time of receiving the message containing prediction timing. It is a flowchart which shows an example of the process sequence of the notification process which a notification control part performs. An example of the content of the message which a mobile station receives sequentially and the content of the judgment result which the mobile station performed with respect to each message are shown. It is a figure which shows an example of the message displayed on the display part etc. of a mobile station. It is a figure which shows an example of the hardware constitutions of an information provision apparatus. It is a figure which shows an example of the hardware constitutions of a mobile station.

  Hereinafter, the present invention will be described through embodiments of the invention, but the following embodiments do not limit the invention according to the claims. In addition, not all the combinations of features described in the embodiments are essential for the solving means of the invention.

  FIG. 1 is a diagram illustrating an example of the overall configuration of the information providing system according to the present embodiment. The information providing system includes the information providing apparatus 100, the mobile stations 200a, 200b, and 200c (hereinafter sometimes collectively referred to as the mobile station 200), and the base stations 300a, 300b, and 300c (hereinafter sometimes collectively referred to as the base station 300). There is). The mobile station 200 is a mobile phone capable of transmitting and receiving information including at least one of characters, images, and voices by wireless communication, or a PDA capable of wireless communication.

  The information providing system provides the mobile station 200 with information related to the emergency vehicle 10. For example, the information providing system provides a message including a prediction timing at which the emergency vehicle 10 passes to the mobile station 200 existing on the planned travel route on which the emergency vehicle 10 travels via the base station 300. For example, a mobile station 200 used by a person who rides a vehicle traveling on the same route as the planned travel route on which the emergency vehicle 10 travels, or a person present in the vicinity of the planned travel route on which the emergency vehicle 10 travels is used. A message is provided to the mobile station 200. The emergency vehicle 10 is an example of a moving body.

  The command center 20 operates the emergency vehicle 10 in response to a request to dispatch the emergency vehicle 10. The command center 20 includes a communication device, and in response to the operation of the emergency vehicle 10, the communication device transmits the mobile body information including the identification information, the departure time, the departure place, and the destination of the emergency vehicle 10 via the network 50. To the information providing apparatus 100. In FIG. 1, the emergency vehicle 10 is directed to the destination 30 in response to a request from the command center 20.

  The base stations 300a and 300b are macrocell base stations of a cellular network that perform wireless communication using a communication scheme such as 3G, LTE, or 4G. The cell 310a is a communicable range where radio communication can be performed between the mobile station 200 and the base station 300a, and the cell 310b is a communicable range where radio communication can be performed between the mobile station 200 and the base station 300b.

  The base station 300c is, for example, a femtocell base station. The cell 310c is a communicable range where wireless communication can be performed between the mobile station 200 and the base station 300c. The range in which the cell 310c can perform wireless communication is narrower than the range in which the cell 310a or the cell 310b can perform wireless communication. Hereinafter, the cell 310a, the cell 310b, and the cell 310c may be collectively referred to as the cell 310. The base station 300 may be an access point of another communication method such as a PHS base station or WiFi.

  Each cell of the cell 310 has a different position and a communicable range, and the timing at which the emergency vehicle 10 passes through the cell 310 also differs depending on the cell 310. For example, in FIG. 1, since the destination 30 is within the range of the cell 310b, the emergency vehicle 10 passes through the cell 310b and then passes through the cell 310b. Therefore, the mobile station 200a existing in the cell 310a encounters the emergency vehicle 10 earlier than the mobile station 200b existing in the cell 310b. That is, the predicted timing at which the emergency vehicle 10 is encountered, for example, the predicted time at which the emergency vehicle 10 is encountered, or the predicted time until the emergency vehicle 10 is encountered varies depending on the position of the cell 310.

  Further, since the range of the cell 310a is wider than the range of the cell 310c, the predicted time until the emergency vehicle 10 enters after passing into the cell 310a is predicted until it passes through after entering the cell 310c. Longer than time. For example, the predicted time from when the emergency vehicle 10 enters the cell 310a until it passes is 15 minutes from 5 minutes to 20 minutes after the current time, and the emergency vehicle 10 enters the cell 310b. It is conceivable that the estimated time to pass through is 5 minutes from 15 minutes to 20 minutes after the current time. That is, the predicted timing at which the emergency vehicle 10 is encountered varies depending on the range of the cell 310.

  Therefore, the information providing apparatus 100 according to the present embodiment considers the position of the cell 310 or the communicable range and the position of the planned travel route on which the emergency vehicle 10 travels, and the range of the cell 310 is at least the emergency vehicle 10 travels. The prediction timing at which the emergency vehicle 10 passes is determined in accordance with the position and range when a part of the planned travel route to be included is included. Thereby, since the person who uses the mobile station 200 can be made to notify more accurately the prediction timing which encounters the emergency vehicle 10, a service with higher convenience can be provided.

  FIG. 2 is a diagram illustrating an example of functional blocks of the information providing apparatus 100. The information providing apparatus 100 includes a reception unit 102, a route information acquisition unit 104, a base station identification unit 106, a timing determination unit 108, a broadcast control unit 110, a transmission unit 112, and a base station information holding unit 120. Note that the information providing apparatus 100 may be incorporated as a device in the base station 300 or a device in the command center 20.

  The receiving unit 102 receives mobile body information including identification information, departure time, departure place, and destination of the emergency vehicle 10 from the command center 20 via the network 50. The route information acquisition unit 104 acquires route information indicating the planned travel route by deriving the planned travel route of the emergency vehicle 10 based on the departure point and the destination included in the moving body information. The derivation of the planned travel route of the emergency vehicle 10 may be performed by the command center 20. In this case, the receiving unit 102 receives route information indicating the planned travel route of the emergency vehicle 10 from the command center 20 via the network 50, and the route information acquiring unit 104 acquires the route information from the receiving unit 102. Good. Further, the route information acquisition unit 104 provides the departure place and the destination included in the moving body information to a movement route derivation system (not shown) that derives the movement route based on the departure place and the destination via the network 50. The route information corresponding to the departure point and the destination may be acquired from the movement route deriving system.

  The base station specifying unit 106 specifies the base station 300 that transmits a message associated with the operation of the emergency vehicle 10 based on the route information. The base station specifying unit 106 specifies the base station 300 with reference to base station information such as the position of the base station 300 and the range of the cell 310 held by the base station information holding unit 120.

  Based on the path information acquired by the path information acquiring unit 104 and the position of the base station 300 specified by the base station specifying unit 106, the timing determination unit 108 is a wireless communication range transmitted by the specified base station 300 The prediction timing at which the emergency vehicle 10 passes through the cell is determined. The timing determination unit 108, for example, according to the specified position and range of each cell 310, the emergency vehicle 10 passes through the cell 310 from the predicted time when the emergency vehicle 10 passes through the cell 310 or the current time. An estimated time indicating a period until the time is determined.

  The broadcast control unit 110 broadcasts a message including the prediction timing determined by the timing determination unit 108 from the base station 300 specified by the base station specifying unit 106 by broadcast. The broadcast control unit 110 broadcasts, to the base station 300 specified by the base station specifying unit 106, a message including the prediction timing by broadcast, the prediction timing at which the emergency vehicle 10 passes through the cell 310, the destination, The transmission unit 112 is instructed to transmit a command signal indicating identification information of the emergency vehicle 10. The transmitting unit 112 transmits a command signal to the base station 300 specified by the base station specifying unit 106 via the network 50. The broadcast control unit 110 may cause the transmission unit 112 to transmit a command signal including identification information assigned every time the emergency vehicle 10 is operated. The identification information assigned every time the emergency vehicle 10 is operated may be, for example, information combining vehicle identification information that uniquely identifies the emergency vehicle 10 and a departure time.

  The base station specifying unit 106 may specify the base station 300 for each predetermined period based on the route information. The timing determination unit 108 may determine the prediction timing every time the base station 300 is specified by the base station specifying unit 106. Furthermore, every time the timing determination unit 108 determines the prediction timing, the broadcast control unit 110 may broadcast a message including the determined prediction timing to the base station 300 by broadcast.

  For example, in FIG. 1, the timing determination unit 108, after a predetermined reference period has elapsed since a message including the first prediction timing is transmitted from the base station 300 a based on the path information and the position of the base station 300 a. You may determine the 2nd prediction timing in which the emergency vehicle 10 passes in the cell 310a included in the message transmitted from the base station 300a. Then, the broadcast control unit 110 transmits a message including the second prediction timing from the base station 300a after a predetermined reference period has elapsed after broadcasting a message including the first prediction timing from the base station 300a by broadcast. It may be transmitted simultaneously by broadcasting.

  In this way, by periodically broadcasting the predicted timing from the base station 300 by broadcast, a message including the passing timing of the emergency vehicle 10 that elapses with time can be provided in accordance with the operation of the emergency vehicle.

  Although it is necessary to specify a plurality of base stations 300 according to the planned travel route on which the emergency vehicle 10 travels due to the operation of the emergency vehicle 10, the base station 300 has different radio communication ranges. Therefore, the base station specifying unit 106 specifies, for example, the base station 300 that falls within the communicable range of at least a part of the planned travel route on which the emergency vehicle 10 travels. In this case, it is conceivable that the radio communication range varies depending on the base station 300, but the base station specifying unit 106 may specify the base station 300 in consideration of this. For example, in FIG. 1, the timing determination unit 108 determines the emergency vehicle based on the route information of the planned travel route on which the emergency vehicle 10 travels, the position of the base station 300 a, and the cell 310 a that is the wireless communication range of the base station 300 a. 10 determines the first prediction timing for the emergency vehicle 10 to pass through the cell 310a, which is the wireless communication range that first passes when the vehicle travels on the planned movement route, and similarly, the route information and the position of the base station 300c Based on the radio communicable range of the base station 300c, the second prediction timing when the emergency vehicle 10 passes through the cell 310c, which is the radio communicable range through which the emergency vehicle passes second, may be determined. The timing determination unit 108 determines the first prediction timing for the emergency vehicle 10 to pass through the cell 310a based on the route information, the position of the base station 300a, and the range cell 310a in which the base station 300a can perform wireless communication. Based on the location of the base station 300c and the cell 310c, which is a wireless communicable range of the base station 300c, the second prediction timing when the emergency vehicle 10 passes through the cell 310c may be determined. The broadcast control unit 110 may broadcast a message including the first prediction timing from the base station 300a by broadcast, and may broadcast a message including the second prediction timing from the base station 300c by broadcast.

  As described above, the prediction timing is determined for each base station 300 in accordance with the position of the base station 300 and the range of the cell 310 that is the wireless communication range of the base station 300, and includes different prediction timings for each base station 300. The message is broadcasted to each base station 300 by broadcast. Thereby, a message including a more accurate prediction timing can be notified to the mobile station 200 in the cell of each base station 300.

  FIG. 3 is a flowchart illustrating a processing procedure in which the information providing apparatus 100 causes the base station 300 to broadcast a message including the prediction timing.

  The receiving unit 102 receives the mobile body information including the identification information, the departure time, the departure place, and the destination of the emergency vehicle 10 from the command center 20 via the network 50 (S100). The route information acquisition unit 104 acquires route information indicating the planned travel route by deriving the planned travel route of the emergency vehicle 10 based on the departure point and the destination included in the moving body information (S102). The route information acquisition unit 104 may derive the scheduled arrival time of the emergency vehicle 10 based on the departure time, the departure place, and the destination included in the moving body information.

  Next, the base station specifying unit 106 refers to the base station information such as the position of the base station 300 held by the base station information holding unit 120 and the range of the cell 310 that is a range in which the base station 300 can perform wireless communication. The station 300 is specified (S104). The timing determination unit 108 predicts that the emergency vehicle 10 passes through the identified cell 310 based on the route information acquired by the route information acquisition unit 104 and the position of the base station 300 specified by the base station specification unit 106. The timing is determined (S106).

  The broadcast control unit 110 causes the transmission unit 112 to transmit a command signal indicating the prediction timing, the destination, and the identification information of the emergency vehicle 10 through which the emergency vehicle 10 passes, so that the prediction timing determined by the timing determination unit 108 is determined. The base station 300 is instructed to transmit the message including the message (S108).

  Subsequently, the base station specifying unit 106 determines whether or not a predetermined reference period has elapsed since the base station 300 transmitted the message (S110). The base station specifying unit 106 determines whether or not a predetermined reference period has elapsed after the command signal is transmitted from the transmitting unit 112, so that the base station specifying unit 106 determines a predetermined value from the message transmission from the base station 300. It may be determined whether the reference period has elapsed. If the predetermined reference period has elapsed, the base station specifying unit 106 determines whether or not the current time has passed the scheduled arrival time of the emergency vehicle 10, so that the emergency vehicle 10 arrives at the destination. It is determined whether or not (S112). And the process after step S104 is repeated until the emergency vehicle 10 arrives at the destination. That is, the information providing apparatus 100 identifies the position of the base station 300 and the range of the cell 310 that is a wireless communicable range of the base station 300 at any time until the emergency vehicle 10 arrives at the destination. Broadcast a message containing

  FIG. 4 is a diagram illustrating an example of functional blocks of the mobile station 200. The mobile station 200 includes a receiving unit 202, a notification control unit 204, a moving direction specifying unit 206, a place specifying unit 207, a place receiving unit 208, a display unit 210, and a near field communication unit 212.

  The receiving unit 202 receives a message including the predicted timing at which the emergency vehicle 10 passes from the base station 300, the identification information of the emergency vehicle 10, and the destination. The notification control unit 204 notifies the display unit 210 of the identification information, destination, and prediction timing of the emergency vehicle 10 included in the message, and the display unit 210 displays the message. When the mobile station 200 is present in the vehicle, the notification control unit 204 transmits a message to another device such as a car navigation device installed in the vehicle via the short-range communication unit 212. The identification information, the destination, and the prediction timing of the emergency vehicle 10 included in the message may be displayed on another display unit included in the apparatus. The short-range communication unit 212 communicates with other devices in accordance with a communication standard such as Bluetooth (registered trademark).

  For example, when the notification control unit 204 detects that the mobile station 200 is moving at a predetermined speed or more with information from a gyro sensor (not shown), the notification control unit 204 detects the mobile station 200. It may be determined that the person holding the vehicle is in the vehicle. When the mobile station 200 is moving at a predetermined speed or more, the notification control unit 204 communicates with the car audio device via the short-range communication unit 212 and displays a message including the prediction timing. The car audio device may be instructed to lower the volume of the speaker in response to the display on the unit 210 or the like. By forcibly lowering the volume of the speaker, it is possible to make it easier for a rider to notice that the emergency vehicle 10 is actually approaching.

  The location specifying unit 207 specifies the current position of the mobile station 200. The location specifying unit 207 may specify the current position of the mobile station 200 using the GPS function. The location specifying unit 207 may specify the current position of the mobile station 200 using a gyro sensor (not shown).

  The moving direction specifying unit 206 specifies the moving direction of the emergency vehicle 10 and the moving direction of the mobile station 200 at the predicted point where the emergency vehicle 10 encounters the mobile station 200. For example, the moving direction specifying unit 206 specifies the current moving direction of the mobile station 200 using a gyro sensor (not shown), and specifies the moving direction of the mobile station 200 at the predicted point from the current moving direction. Good. The movement direction identification unit 206 identifies a predicted point where the emergency vehicle 10 encounters the mobile station 200 based on the planned movement route of the emergency vehicle 10, the current position of the mobile station 200, and the current movement direction of the mobile station 200. May be. Further, the movement direction identification unit 206 may identify the movement direction at the predicted point of the emergency vehicle 10 from the planned movement route and the predicted point.

  The mobile station 200 that receives a message including the prediction timing is, for example, a mobile terminal such as a smartphone used by a person who rides on a moving vehicle. Base station 300 broadcasts a message to mobile station 200 by broadcast. Therefore, the mobile station 200 that receives the message is not necessarily a mobile terminal such as a smartphone used by a person who rides the moving vehicle. For example, a message is also transmitted to a mobile terminal used by a person who remains in one place. However, a person who stays in one place can know when the emergency vehicle 10 passes through the place where the person using the mobile terminal stays if the message is notified once. You may feel that you don't have to be reminded of the message.

  Therefore, when the reception unit 202 receives the first message including the prediction timing and then receives the second message including the prediction timing when the emergency vehicle 10 passes through the cell in which the mobile station 200 exists, notification control is performed. The position of mobile station 200 at the time when reception unit 202 received the first message, and unit 204 includes a prediction timing related to the same mobile body in which the first message received last time and the second message received this time And whether the difference between the position of the mobile station 200 when the receiving unit 202 receives the second message is equal to or less than a predetermined reference difference. Notification control is performed when the difference between the position of the mobile station 200 that has received the first message and the position of the mobile station 200 that has received the second message is equal to or less than a predetermined reference difference, including the prediction timing for the same mobile object Since the second message received this time is the same message related to the emergency vehicle 10 as the first message received last time, and the person using the mobile terminal is staying in the same place, the second message It is determined that message notification is unnecessary, and the second message is not notified by the notification unit. That is, the notification control unit 204 does not display the second message on the display unit 210 or the like.

  The first message and the second message include identification information assigned each time the emergency vehicle 10 departs, and the notification control unit 204 includes identification information included in the first message and identification information included in the second message. May be determined that the first message and the second message include the prediction timing related to the same emergency vehicle 10.

  Further, a person using the mobile station 200 may encounter a plurality of emergency vehicles 10 in the same time zone. In such a case, if a message including prediction timings related to a plurality of emergency vehicles 10 is notified when a message including prediction timings related to the first emergency vehicle 10 is notified, prediction timings related to the second and subsequent emergency vehicles 10 are notified. It is not necessary to notify another message including.

  Therefore, when the notification control unit 204 receives a plurality of messages including respective predicted timings related to a plurality of emergency vehicles 10 that may be encountered in the same time zone, one message including the contents of the plurality of messages. To the display unit 210, and the display unit 210 may display the message. The notification control unit 204 may notify the display unit 210 of one message indicating that a plurality of emergency vehicles 10 may be encountered in a specific time period, and the display unit 210 may display the message. .

  The notification control unit 204 determines whether or not the first message and the second message are messages relating to different emergency vehicles 10 by comparing the identification information included in the first message and the second message. To do. If it is determined that the message relates to a different emergency vehicle 10, the notification control unit 204 determines whether the time difference between the prediction timing included in the first message and the prediction timing included in the second message is equal to or less than a predetermined reference time difference. Judge whether or not. When the time difference between the prediction timing included in the first message and the prediction timing included in the second message is equal to or smaller than a predetermined reference time difference, the first message and the second message encounter the same time zone. One message indicating that there is a possibility of encountering a plurality of emergency vehicles 10 in a specific time period is notified to the display unit 210, and the display unit 210 is notified. May display the message. Note that the notification control unit 204 determines that the plurality of emergency vehicles 10 are the same when the time difference between the prediction timing included in the first message and the prediction timing included in the second message is not less than a predetermined reference time difference. It is determined that the possibility of encountering in the time zone is low, and each message is notified to the display unit 210, and the display unit 210 may display each message.

  In addition, a plurality of emergency vehicles 10 may depart from the same departure place to the same destination at the same time zone. In this case, a person using the mobile station 200 is likely to encounter a plurality of emergency vehicles 10 in the same time zone. Therefore, the first message and the second message received by the receiving unit 202 may include movement information indicating departure times, departure points, and destinations of the plurality of emergency vehicles 10. The notification control unit 204 matches the departure point and destination indicated in the movement information included in the first message with the departure point and destination indicated in the movement information included in the second message. When the time difference between the departure time indicated in the movement information included in one message and the departure time indicated in the movement information included in the second message is equal to or less than the reference time difference, the first message and the second message are the same It is determined that the plurality of emergency vehicles 10 depart from the departure place at the same time zone. Then, the notification control unit 204 may include the content of the second message in the first message and notify the display unit 210, and the display unit 210 may display the message. The notification control unit 204 may notify the display unit 210 of one message indicating that a plurality of emergency vehicles 10 may be encountered in the same time period, and the display unit 210 may display the message. .

  In addition, when the emergency vehicle 10 approaches a vehicle that is traveling in the same lane as the emergency vehicle 10 travels due to the operation of the emergency vehicle 10, the emergency vehicle 10 can pass in order to make the emergency vehicle 10 precede. Thus, it is necessary to change the lane in which the vehicle travels or to bring the vehicle to the side of the road. On the other hand, even if the vehicle traveling in the opposite lane facing the lane where the emergency vehicle 10 travels encounters the emergency vehicle 10, for example, the lane in which the vehicle travels is changed or the vehicle is moved to the side of the road. There is often no need. Therefore, rather than notifying the mobile station 200 existing in the vehicle traveling on the opposite lane of the message regarding the emergency vehicle 10, the message regarding the emergency vehicle 10 is transmitted to the mobile station 200 existing in the vehicle traveling on the same lane. It is more likely that the message will be used more effectively if it is notified.

  Therefore, the notification control unit 204 determines whether or not to display a message including the prediction timing on the display unit 210 based on the moving direction of the emergency vehicle 10 specified by the moving direction specifying unit 206 and the moving direction of the mobile station 200. You may judge. When the moving direction of the emergency vehicle 10 and the moving direction of the mobile station 200 are opposite directions, the notification control unit 204 does not display a message on the display unit 210, and the moving direction of the emergency vehicle 10 and the moving direction of the mobile station 200 are not displayed. If is not the opposite direction, a message may be displayed on the display unit 210.

  Further, even if the vehicle is traveling on the opposite lane, it is necessary to move the vehicle aside if the width of the traveling road is narrower than a predetermined width. On the other hand, if the road at the predicted point where the vehicle encounters the emergency vehicle 10 is a road wider than a predetermined width, a road with a median, or an automobile-only road, the lane may be changed or the vehicle In many cases, there is no need to send them.

  Therefore, the notification control unit 204 includes a road and a median strip where the moving direction of the emergency vehicle 10 and the moving direction of the mobile station 200 are opposite directions and the road at the predicted point is wider than a predetermined width. In the case of a predetermined road such as a road or an automobile-only road, the message need not be notified by the notification unit.

  In addition, when a person who has a home or work place in the vicinity of a specific place such as a fire department or police station from which the emergency vehicle 10 departs or a hospital that is the destination of the emergency vehicle 10 uses the mobile station 200, A message is notified each time the emergency vehicle 10 is operated. Such messages are often unnecessary for such persons.

  Therefore, the user of the mobile station 200 may input a specific location where message notification is not desired via the location reception unit 208. Then, the notification control unit 204 notifies the message when the position of the mobile station 200 at the time when the reception unit 202 receives the message corresponds to a specific location input via the location reception unit 208. 204 may not be displayed on the display unit 210.

  Moreover, the user of the mobile station 200 staying at the same place may be in a building, sitting on a bench, or in a place where the emergency vehicle 10 does not travel. And it is more likely that a pedestrian or a person staying in the same place cannot effectively use a message related to the emergency vehicle 10 than a user of the mobile station 200 moving in the vehicle.

  Therefore, the notification control unit 204 does not have to notify the notification unit of the message when the moving speed of the mobile station 200 at the time when the receiving unit 202 receives the message is equal to or lower than a predetermined reference speed.

  As described above, the notification control unit 204 does not display all the messages broadcasted from the base station 300 by broadcast on the display unit 210 of the mobile station 200, but makes the messages useful for the user of the mobile station 200. As long as it is displayed on the display unit 210 of the mobile station 200, the convenience can be further improved.

  FIG. 5A is a flowchart illustrating an example of a processing procedure of the mobile station 200 when a message including a prediction timing is received.

  When the reception unit 202 receives a message including the prediction timing (S200), the notification control unit 204 relates to the emergency vehicle 10 in which the previous message and the current message are the same, and the mobile station 200 at the time of receiving the previous message. It is determined whether or not the difference between the position and the position of the mobile station 200 when the current message is received is equal to or less than a predetermined reference difference. For the same emergency vehicle 10, when the difference between the position of the mobile station 200 at the time of receiving the previous message and the position of the mobile station 200 at the time of receiving the current message is less than or equal to a predetermined reference difference, The notification control unit 204 does not set the current message on the display unit 210 as a notification candidate.

  On the other hand, when the difference is not equal to or less than a predetermined reference difference with respect to the same emergency vehicle 10, the notification control unit 204 predicts that the moving direction of the emergency vehicle 10 and the moving direction of the mobile station 200 are opposite directions. It is determined whether the road at the point is a predetermined specific road such as a road having a predetermined width or more, a road with a median strip, or an automobile-only road (S204). If each moving direction is the opposite direction and the road at the predicted point is a specific road that is determined in advance, the notification control unit 204 does not set the current message on the display unit 210 as a notification candidate.

  On the other hand, when each moving direction is not the opposite direction or the road is not a predetermined specific road, the notification control unit 204 determines that the location of the mobile station 200 at the time of receiving this message is the location receiving unit 208. It is determined whether it corresponds to the predetermined specific place input via (S206). If it corresponds to a predetermined specific place, the notification control unit 204 does not set the current message on the display unit 210 as a notification candidate.

  On the other hand, when it does not correspond to a predetermined specific place, the notification control unit 204 determines whether or not the moving speed of the mobile station 200 at the time of receiving this message is equal to or lower than a predetermined reference speed ( S208). When the moving speed is equal to or lower than a predetermined reference speed, the notification control unit 204 does not set the current message on the display unit 210 as a notification candidate.

  On the other hand, if the moving speed is not less than or equal to the predetermined reference speed, it is determined that the current message does not correspond to any of the conditions for not sending the message shown in steps S202 to S208, and the notification control unit 204 Is determined as a candidate for displaying the current message on the display unit 210 (S210).

  Further, the notification control unit 204 determines whether or not the next message has been received in a predetermined period after receiving the current message (S212). If the next message has been received, the processing from step S202 is repeated. If the next message has not been received, the notification control unit 204 executes notification processing (S214).

  FIG. 5B is a flowchart illustrating an example of a processing procedure of notification processing executed by the notification control unit 204.

  The notification control unit 204 determines whether there is a notification candidate message (S300). If there is no notification candidate message, the notification process is terminated. If there is a notification candidate message, the notification control unit 204 determines whether there are a plurality of notification candidate messages (S302). If there are not more than one, the notification control unit 204 displays a notification candidate message on the display unit 210 (S304).

  When there are a plurality of notification candidate messages, the notification control unit 204 determines that the plurality of notification candidate messages are in the same time period based on the prediction timing included in the notification candidate messages and the identification information of the emergency vehicle 10. It is determined whether or not the message is for a plurality of emergency vehicles 10 that may encounter (S306). The notification control unit 204 causes the display unit 210 to display a plurality of notification candidate messages unless the messages are for the plurality of emergency vehicles 10 that may be encountered in the same time period (S308). On the other hand, if it is a message for a plurality of emergency vehicles 10 that may be encountered in the same time zone, the notification control unit 204 causes the display unit 210 to display one message including a plurality of notification candidate messages (S310). ).

  As described above, according to the mobile station 200 according to the present embodiment, when there is a high possibility that the message is effectively used, the message is notified, so that convenience can be improved.

  FIG. 6 shows an example of the contents of messages sequentially received by the mobile station 200 and the contents of determination results made by the mobile station 200 for each message.

  For example, the mobile station 200 has “fire engine A” as the vehicle type of the emergency vehicle 10 and the scheduled arrival time “13:00 when the fire engine A arrives in a cell that is within the wireless communication range of the base station 300 that has received the message. ”, The departure place“ fire station A ”, the departure time“ 12:45 ”, and the message number“ 1 ”indicating the destination“ building A ”is received. Then, it is assumed that the mobile station 200 determines that the moving directions of the fire engine A and the mobile station 200 are the same direction. In this case, the mobile station 200 notifies the content of the message number “1”.

  Next, the mobile station 200 has “fire engine B” as the vehicle type of the emergency vehicle 10, and the scheduled arrival time “13:01” when the fire engine B arrives in a cell that is a wireless communicable range of the base station 300 that has received the message. ”, Departure point“ fire station A ”, departure time“ 12:46 ”, and message number“ 2 ”indicating the destination“ building A ”are received. Then, it is assumed that the mobile station 200 determines that the moving directions of the fire engine B and the mobile station 200 are the same direction. Message number “1” and message number “2” are not related to the same moving object. That is, since “fire engine A” as the vehicle type of emergency vehicle 10 and “fire engine B” as the vehicle type of emergency vehicle 10 are different emergency vehicles, message number “1” and message number “2” are the same. It is not about the emergency vehicle 10. However, the message number “2” relates to the emergency vehicle 10 that departs from the same departure location as the previously received message number “1” toward the same destination. Further, the difference between the departure time indicated by the message number “1” and the departure time indicated by the message number “2” is within a predetermined reference difference, for example, within 5 minutes. Therefore, the mobile station 200 determines that the emergency vehicle 10 departs in the same time zone, and the mobile station 200 does not notify the content of the message number “2”.

  Furthermore, the mobile station 200 has “fire engine C” as the vehicle type of the emergency vehicle 10, and the scheduled arrival time “13:10” when the fire engine A arrives in a cell that is within the wireless communication range of the base station 300 that has received the message. ”, The departure point“ fire department C ”, the departure time“ 12:45 ”, and the message number“ 3 ”indicating the destination“ building C ”is received. Then, it is assumed that the mobile station 200 determines that the moving directions of the fire truck C and the mobile station 200 are the same direction. Then, the mobile station 200 determines that the difference between the position of the mobile station 200 when the message number “3” is received and the position of the mobile station 200 when the message number “4” is received is equal to or less than a predetermined reference difference. It is judged that. In this case, since there is a high possibility that the mobile station 200 is hardly moving or a mobile station 200 that a pedestrian has, the mobile station 200 does not notify the message number “3”.

  In addition, the mobile station 200 has the “patrol car B” as the vehicle type of the emergency vehicle 10, and the scheduled arrival time “13:15” at which the police car B arrives in a cell that is within the wireless communication range of the base station 300 that received the message. Assume that a message number “5” indicating the departure place “Police Station B”, departure time “13:00”, and destination “Bill B” is received. Then, it is assumed that the mobile station 200 determines that the movement directions of the police car B and the mobile station 200 are opposite directions. In this case, the mobile station 200 is a predetermined specific road such as a road that is wider than a predetermined width of the road, a road having a median strip, or a road dedicated to automobiles, at the predicted point where the police car B is encountered. If it is determined that there is, the message number “5” is not notified.

  As described above, the mobile station 200 determines whether it is beneficial for the user using the mobile station 200 to notify the message according to the content indicated in the message, and only when the mobile station 200 is beneficial, sends a message by the notification unit. Notify me.

  FIG. 7 is a diagram illustrating an example of a message displayed on the display unit 210 of the mobile station 200.

  The screen 500 is a map showing a message area 502 in which a message regarding the prediction timing of the emergency vehicle 10 is displayed, a current predicted position 512 of the emergency vehicle 10, a current position 510 of the mobile station 200, and a destination 514 of the emergency vehicle 10. And a map area 504 in which is displayed. The content displayed in the message area 502 shown in FIG. 7 is merely an example. For example, the message area 502 may indicate that an emergency vehicle is approaching, that an emergency vehicle may be encountered, or that an accident site may be encountered. The message area 502 may indicate that a plurality of emergency vehicles are approaching.

  A person who uses the mobile station 200 can confirm that the emergency vehicle 10 passes by, for example, the vicinity of the place where the user is present by checking the screen 500 displayed on the display unit 210 or the like of the mobile station 200. . Therefore, for example, when a person using the mobile station 200 is driving a vehicle, the driver of the vehicle is urged to bring the vehicle to the side of the road, or the vehicle is guided to another road through which the emergency vehicle 10 does not pass. be able to.

  FIG. 8 shows an exemplary hardware configuration of the information providing apparatus 100. The information providing apparatus 100 includes a CPU peripheral unit having a CPU 904 and a RAM 906 connected to each other by a host controller 902, a ROM 910 connected to the host controller 902 by an input / output controller 908, and a communication interface 912.

  The host controller 902 connects the RAM 906 and the CPU 904 that accesses the RAM 906 at a high transfer rate. The CPU 904 operates based on programs stored in the ROM 910 and the RAM 906 to control each unit. The input / output controller 908 connects the host controller 902, the communication interface 912 that is a relatively high-speed input / output device, and the ROM 910.

  The communication interface 912 communicates with the communication device provided in the command center 20 via the network 50 and the base station 300. The ROM 910 stores programs and data used by the CPU 904. The ROM 910 stores a boot program that the information providing apparatus 100 executes at startup, a program that depends on the hardware of the information providing apparatus 100, and the like.

  A program provided to the ROM 910 via the RAM 906 is stored in a computer-readable recording medium such as a CD-ROM or a USB memory. The program is read from the recording medium, installed in the ROM 910 in the information providing apparatus 100 via the RAM 906, and executed by the CPU 904.

  A program that is installed and executed in the information providing apparatus 100 works on the CPU 904 or the like to make the information providing apparatus 100 operate as a receiving unit 102, a route information acquiring unit 104, a base station specifying unit 106, a timing determining unit 108, a broadcast control unit. 110, the transmission unit 112, and the base station information holding unit 120.

  FIG. 9 shows an exemplary hardware configuration of the mobile station 200. The mobile station 200 includes a CPU peripheral unit including a CPU 924 and a RAM 926 that are connected to each other by a host controller 922, a ROM 930 that is connected to the host controller 922 by an input / output controller 928, and a communication interface 932.

  The host controller 922 connects the RAM 926 and a CPU 924 that accesses the RAM 926 at a high transfer rate. The CPU 924 operates based on programs stored in the ROM 930 and the RAM 926 to control each unit. The input / output controller 928 connects the host controller 922, the communication interface 932, which is a relatively high-speed input / output device, and the ROM 930.

  Communication interface 932 communicates with base station 300 wirelessly via antenna 934. The ROM 930 stores programs and data used by the CPU 924. The ROM 930 stores a boot program executed when the mobile station 200 is started, a program depending on the hardware of the mobile station 200, and the like.

  The program provided to the ROM 930 via the RAM 926 is stored in a computer-readable recording medium such as a CD-ROM or a USB memory and provided by the user. The program is read from the recording medium, installed in the ROM 930 in the mobile station 200 via the RAM 926, and executed by the CPU 924.

  The program installed and executed in the mobile station 200 works on the CPU 924 and the like to display the mobile station 200 as a reception unit 202, a notification control unit 204, a movement direction identification unit 206, a location identification unit 207, a location reception unit 208, and a display. Function as the unit 210 and the short-range communication unit 212.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiment. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

  The order of execution of each process such as operations, procedures, steps, and stages in the apparatus, system, program, and method shown in the claims, the description, and the drawings is particularly “before” or “prior to”. It should be noted that the output can be realized in any order unless the output of the previous process is used in the subsequent process. Regarding the operation flow in the claims, the description, and the drawings, even if it is described using “first”, “next”, etc. for convenience, it means that it is essential to carry out in this order. It is not a thing.

DESCRIPTION OF SYMBOLS 10 Emergency vehicle 20 Command center 30 Destination 50 Network 100 Information provision apparatus 102 Reception part 104 Path information acquisition part 106 Base station specification part 108 Timing determination part 110 Broadcast control part 112 Transmission part 120 Base station information holding part 200a, 200b, 200c Mobile station 202 Receiving unit 204 Notification control unit 206 Movement direction specifying unit 207 Location specifying unit 208 Location receiving unit 210 Display unit 212 Short-range communication units 300a, 300b, 300c Base stations 310a, 310b, 310c cells

Claims (9)

A route information acquisition unit for acquiring route information indicating a planned movement route of the mobile body;
A base station identifying unit that identifies a base station that includes at least a part of the scheduled movement path of the mobile unit within a range of cells capable of wireless communication based on the path information;
Based on the path information and the position of the base station, a timing determination unit that determines a prediction timing for the mobile to pass through the range of the cell, and a broadcast that simultaneously transmits a message including the prediction timing from the base station An information providing apparatus comprising a control unit.   The information providing apparatus according to claim 1, wherein the timing determination unit determines a prediction timing based on the range of the cell. The base station specifying unit specifies a first base station based on the route information,
The timing determination unit determines, based on the path information and the position of the first base station, a first prediction timing at which the mobile body passes within a first cell range in which the first base station can perform wireless communication. And
The broadcast control unit broadcasts a message including the first prediction timing from the first base station,
The timing determination unit is configured to determine the first time after a reference period has elapsed since the message including the first prediction timing is transmitted from the first base station based on the path information and the position of the first base station. Determining a second prediction timing for the mobile to pass through the range of the first cell included in the message transmitted from the base station;
The message including the second prediction timing from the first base station after the reference period has elapsed after the broadcast control unit transmits the message including the first prediction timing from the first base station all at once. The information providing apparatus according to claim 1, wherein the information is transmitted simultaneously. The base station specifying unit specifies a second base station different from the first base station,
The timing determination unit determines, based on the path information and the position of the second base station, a third prediction timing at which the mobile body passes through a range of a second cell in which the second base station can perform wireless communication. And
The broadcast control unit causes the message including the first prediction timing to be simultaneously transmitted from the first base station, and causes the message including the third prediction timing to be simultaneously transmitted from the second base station. Information provision device.   5. The information provision according to claim 1, wherein the broadcast control unit causes the base station to broadcast the message further including a destination of the mobile unit and identification information of the mobile unit. 6. apparatus. A mobile station that displays a message including a predicted timing of movement of a moving object on a display unit,
A receiving unit that receives a first message including a predicted timing at which a mobile unit passes through a range of a wirelessly communicable cell in which the mobile station exists;
A notification control unit for displaying the first message on a display unit;
The receiving unit receives a second message including a prediction timing at which a mobile unit passes through a range of a cell capable of wireless communication in which the mobile station exists after receiving the first message;
The notification control unit includes a prediction timing related to the same mobile body in the first message and the second message, and the position of the mobile station at the time when the reception unit receives the first message; A mobile station that does not display the second message on the display unit when a difference from a position of the mobile station at a time when the receiving unit receives the second message is equal to or less than a reference difference. The first message and the second message include identification information assigned every time the mobile departs,
When the identification information included in the first message matches the identification information included in the second message, the notification control unit is configured such that the first message and the second message are the same mobile body. The mobile station according to claim 6, wherein the mobile station determines that the prediction timing is included. The first message and the second message include movement information indicating a departure time, a departure place, and a destination of a mobile object,
The notification control unit matches a departure place and a destination indicated in the movement information included in the first message with a departure place and a destination indicated in the movement information included in the second message, When the time difference between the departure time indicated in the movement information included in the first message and the departure time indicated in the movement information included in the second message is equal to or less than a reference time difference, the second message is The mobile station according to claim 6, wherein the mobile station is not displayed on the display unit.   The notification control unit, when the first message and the second message are messages for a plurality of mobiles that pass through a cell range in which the mobile station exists in the same time zone, The mobile station according to any one of claims 6 to 8, wherein one message according to a prediction timing of each of the message and the second message is displayed on the display unit.