JP2014134831A - Traveling support device, method thereof and notification control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a navigation device capable of notifying a scheduled traveling route of another vehicle having a high relationship with a travel of own vehicle.SOLUTION: A navigation device 1 includes: a map data accumulation section 13 that accumulates map data; a present position detection section 14 that detects present position of own vehicle; and a route calculation section 15 that calculates a route to a destination calculated based on the present position and the destination of the own vehicle calculated based on the map data. The navigation device 1 further includes: a wireless communication unit 17 that acquires a scheduled traveling route information of another vehicle; and a control unit 18 that controls a notification device 11 to notify a scheduled traveling route of the other vehicle included in the route based on the route calculated by the route calculation section 15 and the scheduled traveling route information of other vehicle received by the wireless communication unit 17.

Description

  The present invention relates to a travel support device and a travel support method that support travel of a host vehicle using a notification of a notification device mounted on the host vehicle, and a notification control device that can control the notification device via communication. is there.

  In recent years, an in-vehicle navigation device that receives information on other vehicles at intersections by means of communication, performs necessary notification to the driver based on the information on the other vehicles and the state of the own vehicle, or performs own vehicle control Has been proposed. According to such a device, it is possible to perform necessary notification to the driver and control of the vehicle in advance, and it is expected that safety at the intersection can be improved.

  As a communication means for receiving information on other vehicles, a configuration for receiving information on other vehicles from roadside communication devices arranged in parallel on the road is conceivable, but a vehicle different from the other vehicles between the roadside communication devices. If the vehicle is present, the vehicle may become an obstacle to communication, resulting in difficulty in receiving. Therefore, as a technique for reliably receiving information on other vehicles, for example, as disclosed in Patent Document 1, communication is performed between the navigation device of the host vehicle and the preceding vehicle (inter-vehicle communication) using a directional antenna. A vehicle-to-vehicle communication system has been proposed.

  Further, in Patent Document 1, when the navigation device of the host vehicle receives a travel schedule representing a travel direction (left turn or right turn) scheduled by the forward vehicle at the nearest intersection from the navigation device of the forward vehicle. It is described that the travel schedule is displayed as a warning on the display. According to such a technique, before the direction indicator of the front vehicle blinks or before the vehicle ahead decelerates to make a right or left turn, the driver of the own vehicle schedules driving such as a right or left turn of the front vehicle. Since it can be known, it is possible to drive while warning the vehicle ahead. As a result, the safety of the host vehicle is improved and the host vehicle can run smoothly.

JP2011-237878A

  However, in the case of the navigation device as described above, even when the vehicle makes a right or left turn at the nearest intersection, the traveling is also received when a traveling schedule is received from a preceding vehicle traveling forward across the intersection. The schedule will be displayed. That is, the navigation device as described above notifies the driver of the own vehicle to call attention to the traveling schedule of the preceding vehicle that is not related to the traveling of the own vehicle. It had to be done and was a burden.

  Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide a technique capable of notifying a traveling schedule of another vehicle having a high relationship with the traveling of the host vehicle.

  A travel support apparatus according to the present invention is a travel support apparatus that supports travel of a host vehicle using a notification from a notification device mounted on the host vehicle, and includes a data acquisition unit that acquires map data, and a current state of the host vehicle. A current position acquisition unit for acquiring a position, a route acquisition unit for acquiring a route to a destination calculated from map data based on the current position of the host vehicle and a destination to which the host vehicle should reach, and other vehicles Based on the other vehicle information acquisition unit that acquires the traveling schedule information including the current position and the traveling schedule, the route acquired by the route acquisition unit, and the traveling schedule information of the other vehicle acquired by the other vehicle information acquisition unit And a control unit that causes the notification device to notify the traveling schedule of other vehicles included in the route.

  According to the present invention, the notification device notifies the travel schedule of other vehicles included in the route of the host vehicle. Therefore, it is possible to notify the traveling schedule of a significant other vehicle having a high relationship with the traveling of the own vehicle.

1 is a block diagram showing a configuration of a navigation device according to Embodiment 1. FIG. 3 is a flowchart showing an operation of the navigation device according to the first embodiment. FIG. 6 is a diagram showing an operation of the navigation device according to the first embodiment. 10 is a flowchart showing the operation of the navigation device according to the second embodiment. FIG. 10 is a diagram illustrating an operation of the navigation device according to the second embodiment. 10 is a flowchart showing the operation of the navigation device according to the third embodiment. FIG. 10 is a diagram illustrating an operation of the navigation device according to the third embodiment. FIG. 10 is a diagram showing an operation of the navigation device according to the fourth embodiment. FIG. 10 is a diagram illustrating operations of the navigation device according to the fifth embodiment. 18 is a flowchart showing the operation of the navigation device according to the sixth embodiment. FIG. 25 is a diagram showing operations of the navigation device according to the sixth embodiment. 18 is a flowchart showing the operation of the navigation device according to the seventh embodiment. FIG. 23 is a diagram showing operations of the navigation device according to the seventh embodiment. It is a block diagram which shows the structure of the server which concerns on a modification. It is a flowchart which shows operation | movement of the server and navigation apparatus which concern on a modification.

<Embodiment 1>
As a first embodiment of the present invention, a case where the driving support device according to the present invention is applied to a navigation device mounted on a vehicle will be described as an example. FIG. 1 is a block diagram showing a configuration of a navigation device 1 to which the driving support device is applied. Hereinafter, the navigation device 1 is assumed to be mounted on each of a plurality of vehicles, and description will be given focusing on one of these vehicles. One vehicle of interest is referred to as “own vehicle”, and the other vehicles are referred to as “other vehicles”.

  A navigation device 1 shown in FIG. 1 includes a notification device 11, an input unit 12, a map data storage unit 13 (data acquisition unit), a current position detection unit 14 (current position acquisition unit), and a route calculation unit 15 ( A route acquisition unit), a route guide unit 16, a wireless communication unit 17 (other vehicle information acquisition unit), and a control unit 18 that controls these in an integrated manner.

  The notification device 11 notifies various information to a user such as a driver of the own vehicle. The notification device 11 shown in FIG. 1 includes a display unit 11a configured by a display, an image control unit 11b, an audio output unit 11c configured by a speaker, and an audio control unit 11d. Yes. The image control unit 11b causes the display unit 11a to display an image such as a map image and a guide image based on image data including a map image and a guide image output from the control unit 18. Similarly, the voice control unit 11d causes the voice output unit 11c to output voice such as guidance voice and warning sound based on voice data including guidance voice and warning sound output from the control unit 18. The navigation device 1 can control the notification (display and audio output) of the notification device 11 configured as described above, and can support the traveling of the vehicle using the notification. It has become.

  The input unit 12 includes, for example, a push button device, a touch panel, or the like, and receives destination information from a user that can specify a destination to be reached by the host vehicle. For example, when the input unit 12 receives a point on the map displayed on the display unit 11a that is scrolled according to the user's operation from the user, the input unit 12 receives the point as a destination and inputs the address or telephone number to the user. If it is received from, the address or telephone number is received as destination information.

  The map data storage unit 13 is composed of a storage device such as a hard disk drive (HDD) or a RAM (Random Access Memory), and stores (stores) map data. Here, the map data storage unit 13 is configured to acquire and store map data from the outside of the navigation device 1. For example, the map data storage unit 13 may store the map data by downloading it from an external device via a network, or a record such as a DVD-ROM or Blu-ray (registered trademark) Disc-ROM. You may accumulate | store by reading from a medium.

  The current position detection unit 14 is connected to a GPS (Global Positioning System) reception unit 14a, an orientation detection unit 14b, and a pulse detection unit 14c. The GPS receiver 14a receives a GPS signal from a GPS satellite, and detects the current position of the vehicle (for example, latitude / longitude coordinates) based on the GPS signal. The direction detection unit 14b includes, for example, a gyro sensor and an direction sensor, and detects the traveling direction (for example, the direction) of the host vehicle. The pulse detector 14c detects a pulse signal corresponding to the number of rotations per unit time of the axle of the own vehicle, and detects the traveling speed and the traveling distance of the own vehicle based on the pulse signal.

  The current position detection unit 14 detects the current position detected by the GPS reception unit 14a based on vehicle movement data (travel direction, travel speed, and travel distance of the host vehicle) detected by the direction detection unit 14b and the pulse detection unit 14c. By correcting, the current current position of the vehicle is detected.

  Based on the current position of the host vehicle detected by the current position detection unit 14 and the destination that the host vehicle received by the input unit 12 should reach, the route calculation unit 15 routes from the current position to the destination. Is calculated from the map data described above. By this calculation, the route calculation unit 15 travels as much as possible on, for example, a route with a short arrival time (time priority route), a route with a short travel distance (distance priority route), a route with low fuel consumption (fuel consumption priority route), and a toll road. A route (paid priority route), a route traveling on a general road as much as possible (general priority route), a route with a good balance of time, distance and cost (standard route) can be searched.

  The route guide unit 16 stores a route selected by the user via the input unit 12 or the like (hereinafter referred to as “scheduled travel route”) among the routes calculated by the route calculation unit 15. Then, the route guide unit 16 guides the user from the current position to the destination along the planned travel route by controlling the notification of the notification device 11 based on the current position of the host vehicle on the planned travel route.

  The wireless communication unit 17 includes a receiving antenna 17a, a receiving unit 17b that receives various types of information transmitted from other vehicles via the receiving antenna 17a, a transmitting antenna 17c, and various types of information that should be transmitted to other vehicles. And a transmission unit 17d for transmitting via the antenna 17c. Here, the wireless communication part 17 shall be comprised so that the vehicle-to-vehicle communication which transmits / receives various information directly between the other vehicles of the own vehicle periphery can be performed.

  The wireless communication unit 17 receives travel schedule information including the current position and travel schedule of other vehicles and transmits travel schedule information including the current position and travel schedule of the host vehicle through the inter-vehicle communication. Here, it is assumed that the travel schedule included in the travel schedule information of the other vehicle is information indicating the travel direction (either straight, left turn, or right turn) that the other vehicle plans at the intersection that passes most recently. . Similarly, it is assumed that the travel schedule included in the travel schedule information of the host vehicle is information indicating the travel direction scheduled by the host vehicle at an intersection that passes most recently.

  The components of the navigation device 1 have been described above. Of the components, the current position detection unit 14, the route calculation unit 15, the route guide unit 16, and the control unit 18 are each configured by a CPU (Central Processing Unit) provided one-on-one. Also good. Alternatively, the functions of the current position detection unit 14, the route calculation unit 15, the route guidance unit 16, and the control unit 18 are realized by one CPU executing a program stored in the storage device of the map data storage unit 13. It may be done.

  FIG. 2 is a flowchart showing the operation of the navigation device 1 for the host vehicle according to the first embodiment. This operation is realized by the CPU configuring the control unit 18 of the navigation device 1 executing a program stored in the storage device of the navigation device 1. Next, operation | movement of the navigation apparatus 1 (control part 18) of the own vehicle is demonstrated using this flowchart.

  First, in step S1, the control unit 18 determines whether or not the wireless communication unit 17 (reception unit 17b) has received travel schedule information transmitted from another vehicle within the communication range. If it is determined that it has been received, the process proceeds to step S2, and if it is determined that it has not been received, the process proceeds to S5.

  In step S <b> 2, the control unit 18 determines whether or not the route calculation unit 15 has already calculated a route based on the current position and destination of the host vehicle detected by the current position detection unit 14. Here, the control unit 18 determines that the route is calculated when the route guidance along the planned travel route by the route guidance unit 16 is performed, and when the route guidance is not performed, Assume that the route is not calculated. If it is determined in step S2 that the route has been calculated, the process proceeds to step S3. If it is determined that the route has not been calculated, the process proceeds to step S5.

  In step S <b> 3, the control unit 18 determines the current vehicle current based on the planned travel route (the route calculated by the route calculation unit 15) and the travel schedule information of the other vehicle received by the wireless communication unit 17. It is determined whether or not the position is included in the planned travel route. Here, when the current position of the other vehicle is on a road corresponding to the planned travel route of the own vehicle or when it is on a road adjacent to the road (for example, an overtaking lane and an opposite lane of the road) The current position of the other vehicle is included in the travel route. If it is determined that the other vehicle is included in the planned travel route, the process proceeds to step S4. If it is determined that the other vehicle is not included in the planned travel route, the process proceeds to step S5.

  In step S4, the control unit 18 causes the notification device 11 to notify the travel schedule of another vehicle determined to be included in the planned travel route in step S3. In other words, the travel direction scheduled at the intersection where the other vehicle passes most recently is notified (displayed and voiced) by the notification device 11 of the own vehicle. Thereafter, the process proceeds to step S5. However, if travel schedule information has been received from a plurality of other vehicles in step S1, the processing of steps S2 to S4 is performed for each of the plurality of other vehicles, and the processing is completed for the plurality of other vehicles. Proceed to step S5.

  In step S <b> 5, the control unit 18 determines whether or not the input unit 12 has accepted an operation for stopping the notification of the travel schedule of another vehicle by the notification device 11. When it is determined that the operation has been received by the input unit 12, the notification device 11 stops the notification of the travel schedule of the other vehicle and ends the operation shown in FIG. 2, while determining that the operation has not been received. If so, the process returns to step S1.

  FIG. 3 is a diagram illustrating a display example of the display unit 11a of the notification device 11 when the operation illustrated in the flowchart of FIG. 2 is performed. In this display example, the host vehicle 21, the planned traveling route 22 of the host vehicle 21, the other vehicles 31, 32, 33, 41, and the map around the host vehicle 21 are shown. Here, the scheduled travel route 22 is indicated by a thick arrow, and is a route that turns left at the intersection 101, turns right at the intersection 102, goes straight at the intersection 103, and turns left at the intersection 104. Of the other vehicles 31, 32, 33, 41, 42, the other vehicles 31, 32, 33 are included in the planned travel route 22 of the host vehicle 21, and the other vehicles 41, 42 are scheduled to travel the host vehicle 21. It is not included in the path 22.

  In the navigation device 1 of the other vehicle 31, guidance to the destination is given to the driver of the other vehicle 31, and guidance is made so that the other vehicle 31 makes a left turn at the intersection 101 through which the vehicle 31 passes most recently. In this case, the navigation device 1 of the other vehicle 31 transmits travel schedule information including the current position of the other vehicle 31 and the travel plan 31a indicating a left turn at the intersection 101. The transmitted traveling schedule information of the other vehicle 31 is received. Similarly, the navigation apparatus 1 of the own vehicle 21 receives the travel schedule information of the other vehicles 32, 33, 41, and 42 (step S1).

  Then, the navigation device 1 of the own vehicle 21 extracts the other vehicles 31, 32, 33 included in the planned travel route 22 from the other vehicles 31, 32, 33, 41, 42 (step S2 and step S3). And the navigation apparatus 1 of the own vehicle 21 does not notify the traveling schedule of the other vehicles 41 and 42 not included in the scheduled traveling route 22 that has not been extracted, and the other vehicles 31 and included in the extracted traveling planned route 22. The travel schedules 31a, 32a, 33a of 32, 33 are notified (step S4).

  According to the navigation device 1 according to the first embodiment as described above, the notification device 11 notifies the travel schedule of other vehicles included in the planned travel route of the host vehicle. Therefore, since it is possible to notify the traveling schedule of a significant other vehicle having a high relationship without reporting the traveling schedule for other vehicles having a low relationship with the traveling of the host vehicle, the burden on the user can be suppressed. it can. Further, the above configuration and effects can be realized using a general-purpose antenna without using a directional antenna or the like.

  In the display example shown in FIG. 3, the traveling schedules 31 a, 32 a, and 33 a of a plurality of other vehicles 31, 32, and 33 included in the scheduled traveling route 22 are displayed. However, the display form of the display unit 11a is not limited to this. For example, among the other vehicles 31, 32, 33, the traveling schedule may be displayed only for the other vehicle 31 closest to the own vehicle. Good.

  Further, in the example shown in FIG. 3, a display example in which a figure (in this case, a rectangle) indicating the positions of the other vehicles 31, 32, and 33 and an arrow indicating the travel schedule of the other vehicles 31, 32, 33 are superimposed on each other. Although shown, the display form is not limited to this.

  In the above description, the travel schedule included in the travel schedule information is information indicating the travel direction planned at the intersection where the vehicle (the host vehicle and the other vehicle) passes most recently. is not. For example, the travel schedule may be information indicating a travel direction planned at a point where the vehicle passes most recently in a point where the frequency of deceleration is high (for example, a point serving as an entrance / exit of a destination). Alternatively, the traveling schedule may be information including a direction in which the vehicle makes a right turn or a left turn most recently and a point at which the vehicle makes a right turn or a left turn (not necessarily a point that passes most recently).

  In the above description, the notification device 11 has been described as performing notification by display and audio output. However, the notification device 11 is not limited to this, and performs notification by either display or audio output. Also good.

<Embodiment 2>
In addition to the operation of the first embodiment, the navigation device 1 according to the second embodiment of the present invention extracts other vehicles whose distance from the own vehicle is shorter than the threshold and notifies the travel schedule of the extracted other vehicles. It is comprised so that the apparatus 11 may be notified. Hereinafter, in the navigation device 1 according to the second embodiment, the same or similar components as those described in the first embodiment are denoted by the same reference numerals, and different points will be mainly described.

  FIG. 4 is a flowchart showing the operation of the navigation device 1 according to the second embodiment. The flowchart shown in FIG. 4 is obtained by adding a new step S11 between step S3 and step S4 of the flowchart shown in FIG. Therefore, only step S11 will be described below.

  In step S11, the control unit 18 determines whether the distance between the current position of the other vehicle determined to be included in the planned travel route in step S3 and the current position of the host vehicle is within a threshold value. Here, it is assumed that a preset distance R1 (FIG. 5) is used as the threshold value among 30 m to 110 m. For example, the current position of the traveling schedule information of the other vehicle can be used as the current position of the other vehicle according to step S11. The current position of the host vehicle according to step S11 is detected by, for example, the current position detection unit 14. Current position can be used.

  If it is determined in step S11 that the distance between the other vehicle and the host vehicle is within the threshold, the process proceeds to step S4, and the control unit 18 causes the notification device 11 to notify the travel schedule of the determined other vehicle. On the other hand, if it is determined in step S11 that the distance between the other vehicle and the host vehicle exceeds the threshold, the process proceeds to step S5.

  FIG. 5 is a diagram showing a display example of the notification device 11 (display unit 11a) in the same form as FIG. 3 when the operation shown in the flowchart of FIG. 4 is performed. In FIG. 5, a circle 111 having a radius of the distance R <b> 1 centered on the position of the vehicle 21 is added to the display example of FIG. 3.

  The navigation device 1 according to the first embodiment displays the travel schedules 31a, 32a, 33a for all the other vehicles 31, 32, 33 included in the planned travel route 22 (FIG. 3). However, among these, since the other vehicle 33 is far away from the own vehicle 21, it is considered that the possibility that the traveling of the other vehicle 33 affects the traveling of the own vehicle 21 is low.

  On the other hand, as shown in FIG. 5, the navigation device 1 according to the second embodiment has a distance from the current position of the own vehicle 21 that is longer than the distance R1 among the other vehicles 31, 32, 33. The other vehicle 33 (outside the circle 111) is not notified of the traveling schedule, and the other vehicles 31 and 32 (within the circle 111) that are less than the distance R1 are notified of the traveling schedule 31a, 32a. It has become.

  As described above, according to the navigation device 1 according to the second embodiment, the significant other vehicle having a higher relationship with the traveling of the own vehicle is narrowed down and the traveling schedule of the other vehicle is notified. The burden on the user can be further suppressed.

<Embodiment 3>
The navigation apparatus 1 according to Embodiment 3 of the present invention is configured to change the threshold based on the traveling speed of the host vehicle in addition to the operation of Embodiment 2. Hereinafter, in the navigation device 1 according to the third embodiment, the same or similar components as those described in the second embodiment are denoted by the same reference numerals, and different points will be mainly described.

  FIG. 6 is a flowchart showing the operation of the navigation device 1 according to the third embodiment. The flowchart shown in FIG. 6 is obtained by adding a new step S21 between step S3 and step S11 of the flowchart shown in FIG. Therefore, only step S21 will be described below.

  In step S21, the control unit 18 changes the threshold used in step S11 based on the traveling speed of the host vehicle. Specifically, the control unit 18 decreases the threshold value as the traveling speed of the host vehicle detected by the pulse detection unit 14c decreases, and increases the threshold value as the traveling speed of the host vehicle increases. . Here, a distance R2 (FIG. 7) obtained by adding a margin distance (for example, 10 m) to a known stop distance (idle distance + braking distance) that changes according to the traveling speed is used as the threshold value. .

  After step S21, the process proceeds to step S11 and the same operation as in the second embodiment is performed.

  FIG. 7 is a diagram showing a display example of the notification device 11 (display unit 11a) in the same form as FIG. 3 when the operation shown in the flowchart of FIG. 6 is performed. In FIG. 7, a circle 112 having a radius of the distance R2 centered on the position of the own vehicle 21 is added to the display example of FIG. The other cars 34 and 35 are added between the two.

  As described above, when a traffic jam occurs on the planned travel route 22, the travel speed of the host vehicle 21 decreases, and as a result, the distance R <b> 2 also decreases. Therefore, in such a case, the navigation apparatus 1 according to the third embodiment notifies the traveling schedules 31a, 34a, and 35a for the other vehicles 31, 34, and 35 that are closer to the host vehicle 21.

  As described above, according to the navigation device 1 according to the third embodiment, other vehicles close to the own vehicle are narrowed down when the own vehicle is traveling at a low speed due to a stop such as waiting for a signal or a traffic jam. That is, since significant other vehicles having a high relationship with the traveling of the host vehicle are appropriately narrowed down and the traveling schedule of the other vehicle is notified, the burden on the user of the own vehicle can be further suppressed.

  In the above description, the case where the distance R2 obtained by adding the margin distance to the stop distance is used as the threshold value has been described. However, the threshold value is not limited to this, and the threshold value may be a distance calculated from a proportional expression of the traveling speed of the own vehicle, or obtained by referring to a table of traveling speed and distance of the own vehicle. A distance may be used.

<Embodiment 4>
FIG. 8 is a diagram for explaining the navigation device 1 according to the fourth embodiment of the present invention, and is a plan view showing the periphery of the own vehicle. Hereinafter, in the navigation device 1 according to the fourth embodiment, the same or similar components as those described in the first embodiment are denoted by the same reference numerals, and different points will be mainly described.

  In the fourth embodiment, the wireless communication unit 17 travels the other vehicle via the road-to-vehicle communication when the communication quality of the vehicle-to-vehicle communication with the other vehicle is poor and the vehicle-to-vehicle communication with the other vehicle cannot be performed. It is configured to receive schedule information. For example, as shown in FIG. 8, when a plurality of vehicles and buildings are interposed between the own vehicle 21 and the other vehicle 33, inter-vehicle communication between the own vehicle 21 and the other vehicle 33 is not possible. The wireless communication unit 17 of the host vehicle 21 receives the traveling schedule information of the other vehicle 33 through road-to-vehicle communication that relays the roadside antennas 51a and 51b. It is assumed that the communication quality between the roadside antenna 51a and the roadside antenna 51b is secured.

  According to the navigation device 1 according to the fourth embodiment as described above, it is possible to reliably receive travel schedule information of other vehicles even in an area where there are many communication failures.

  In addition, the roadside antenna that has received the travel schedule information from the vehicle (the host vehicle and the other vehicle) may be configured to transmit the travel schedule information only to the roadside antenna whose distance from the vehicle is shorter than the threshold. . When configured in this way, the same configuration as in the second and third embodiments can be realized.

<Embodiment 5>
FIG. 9 is a diagram for explaining the navigation device 1 according to the fifth embodiment of the present invention, and is a plan view showing the periphery of the own vehicle. Hereinafter, in the navigation device 1 according to the fifth embodiment, the same or similar components as those described in the first embodiment are denoted by the same reference numerals, and different points will be mainly described.

  In the fifth embodiment, the wireless communication unit 17 relays a vehicle different from the other vehicle when the communication quality of the inter-vehicle communication with the other vehicle is poor and the inter-vehicle communication with the other vehicle cannot be performed. The travel schedule information of the other vehicle is received via inter-vehicle communication. For example, as shown in FIG. 9, when a plurality of vehicles, buildings, and the like are interposed between the own vehicle 21 and the other vehicle 33, inter-vehicle communication between the own vehicle 21 and the other vehicle 33 cannot be performed. The wireless communication unit 17 of the host vehicle 21 receives the travel schedule information of the other vehicle 33 by inter-vehicle communication that relays the other vehicles 32, 31, 35, 34 in order.

  According to the navigation device 1 according to the fifth embodiment as described above, it is possible to reliably receive travel schedule information of other vehicles even in an area where there are many communication failures.

  Only when the distance between the vehicle that originally transmitted the travel schedule information and the vehicle that relays the travel schedule information is shorter than the threshold, the relaying vehicle transmits the travel schedule information to another vehicle. It may be configured to. When configured in this way, the same configuration as in the second and third embodiments can be realized.

<Embodiment 6>
In addition to the operation of the first embodiment, the navigation device 1 according to the sixth embodiment of the present invention determines the current traveling direction of the other vehicle, and also determines the traveling direction of the other vehicle and the current position of the other vehicle. Another vehicle having the same traveling schedule as the corresponding own vehicle is extracted, and the notification device 11 is notified of the extracted traveling schedule of the other vehicle. Hereinafter, in the navigation device 1 according to the sixth embodiment, the same or similar components as those described in the first embodiment are denoted by the same reference numerals, and different points will be mainly described.

  Note that both the travel direction and the travel schedule mean the travel direction of the vehicle, but in the following description, the current travel direction is referred to as the “travel direction”, and the planned travel direction is referred to as “travel schedule. ".

  FIG. 10 is a flowchart showing the operation of the navigation device 1 according to the sixth embodiment. The flowchart shown in FIG. 10 is obtained by adding new steps S31, S32, and S33 between step S3 and step S4 of the flowchart shown in FIG. Therefore, only steps SS31, S32, and S33 will be described below.

  In step S31, the control unit 18 determines the current traveling direction of the other vehicle with respect to the other vehicle determined to be included in the planned traveling route in step S3. For example, the control unit 18 determines the current traveling direction of the other vehicle based on the time change of the current position or the traveling schedule included in the traveling schedule information of the other vehicle received by the wireless communication unit 17.

  In step S32, the control unit 18 determines the current position of the other vehicle, as will be described later, based on the current position of the other vehicle for which the traveling direction is determined in step S31 and the planned traveling route of the own vehicle. The travel schedule of the vehicle corresponding to is calculated.

  In step S33, the control unit 18 determines whether or not the traveling schedule of the host vehicle calculated in step S32 is the same as the traveling direction of the other vehicle determined in step S31. When it is determined that the traveling schedule of the own vehicle and the traveling direction of the other vehicle are the same, the process proceeds to step S4, and the control unit 18 causes the notification device 11 to notify the traveling schedule of the determined other vehicle. On the other hand, if it is determined in step S33 that the traveling schedule of the own vehicle is different from the traveling direction of the other vehicle, the process proceeds to step S5.

  FIG. 11 is a diagram showing a display example of the notification device 11 (display unit 11a) in the same form as FIG. 3 when the operation shown in the flowchart of FIG. 10 is performed. In FIG. 11, other vehicles 36 and 37 are added to the display example of FIG. The other vehicles 31, 32, 33, 36, and 37 are included in the planned traveling route 22 of the host vehicle 21.

  Among these other vehicles 31, 32, 33, 36, 37, the current traveling direction of the other vehicle 32 (to the left in the example shown in FIG. 11) is the traveling schedule of the own vehicle 21 corresponding to the current position of the other vehicle 32 ( In the example shown in FIG. Similarly, the current traveling directions of the other vehicles 31 and 33 are the same as the traveling schedule of the own vehicle 21.

  On the other hand, among the other vehicles 31, 32, 33, 36, 37, the current traveling direction 36 b of the other vehicle 36 (downward in the example shown in FIG. 11) is the traveling of the own vehicle 21 corresponding to the current position of the other vehicle 36. It differs from the schedule (upward in the example shown in FIG. 11) in the reverse direction. Similarly, the current traveling direction of the other vehicle 37 (rightward in the example shown in FIG. 11) is also different from the traveling schedule of the own vehicle 21 (leftward in the example shown in FIG. 11).

  Here, in the first embodiment described above, the travel schedule is displayed for all the other vehicles 31, 32, 33, 36, 37 included in the planned travel route 22. However, even if another vehicle having a different traveling direction from the traveling schedule of the own vehicle 21 such as the other vehicles 36 and 37 goes straight or turns left, it is not likely to affect the traveling of the own vehicle 21. It is done.

  Therefore, the navigation device 1 according to the sixth embodiment, as shown in FIG. 11, among the other vehicles 31, 32, 33, 36, 37 included in the planned travel route 22, The other vehicles 36 and 37 having different current traveling directions are not notified of the traveling schedule, and the other vehicles 31, 32 and 33 having the same traveling direction as the traveling schedule of the host vehicle 21 are designated as the traveling schedules 31a, 32a and 33a. It is to be notified.

  As described above, according to the navigation device 1 according to the sixth embodiment, a significant other vehicle having a higher relationship with the traveling of the own vehicle is narrowed down and the traveling schedule of the other vehicle is notified. The burden on the user can be further suppressed.

<Embodiment 7>
In addition to the operations of the third and sixth embodiments, the navigation device 1 according to the seventh embodiment of the present invention extracts other vehicles whose traveling schedule crosses the planned traveling route of the host vehicle, and travels the extracted other vehicles. The notification device 11 is configured to notify the schedule. Hereinafter, in the navigation device 1 according to the seventh embodiment, the same or similar components as those described in the third and sixth embodiments are denoted by the same reference numerals, and different points will be mainly described.

  FIG. 12 is a flowchart showing the operation of the navigation device 1 according to the seventh embodiment. In the flowchart shown in FIG. 12, steps S21 and S11 described in the third embodiment are added between step S3 and step S31 of the flowchart shown in FIG. 10, and between step S33 and step S4. A new step S41 is added. Therefore, only step S41 will be described below.

  In step S41, the control unit 18 determines whether or not the travel schedule of the other vehicle crosses the travel schedule route of the host vehicle with respect to the other vehicle that is determined to be different from the travel schedule of the host vehicle and the current travel direction in step S33. (Whether or not it intersects the planned travel route of the vehicle). When it determines with crossing, it progresses to step S4, and the control part 18 notifies the travel schedule to the notification apparatus 11 about the determined other vehicle. On the other hand, when it determines with not crossing in step S41, it progresses to step S5.

  FIG. 13 is a diagram showing a display example of the notification device 11 (display unit 11a) in the same form as FIG. 11 when the operation shown in the flowchart of FIG. 12 is performed. In FIG. 13, in the display example of FIG. 11, a circle 113 having a radius R 3 centered on the position of the host vehicle 21 is added, and the travel schedule 36 a of the other vehicle 36 is the planned travel route of the host vehicle 21. 22 crosses.

  The navigation device 1 according to the seventh embodiment performs the operations of steps S11 and S21 as in the third embodiment, so that among the other vehicles 31, 32, 33, 36, and 37 included in the planned travel route 22 Then, the other vehicles 31, 32, 36, 37 whose distance from the own vehicle 21 is within the distance R3 (within the circle 113) are extracted. And the navigation apparatus 1 which concerns on this Embodiment 7 performs the steps S31-S33 similarly to Embodiment 6 mentioned above, and the other vehicle 31 with which the driving schedule of the own vehicle 21 and the present driving direction are the same. , 32 are extracted.

  Here, in the above-described sixth embodiment, it is assumed that the other vehicles 36 and 37 having different traveling schedules from the current traveling direction of the own vehicle 21 are not likely to affect the traveling of the own vehicle 21, and the other vehicles 36 and 37. The schedule of driving was not notified. However, among the other vehicles 36 and 37, like the other vehicle 36, the other vehicle whose traveling schedule crosses the traveling planned route 22 of the own vehicle 21 is considered to have a high possibility of affecting the traveling of the own vehicle 21. .

  Therefore, the navigation device 1 according to the seventh embodiment includes other vehicles 36 and 37 having different travel schedules from the travel schedule of the host vehicle 21 and the current travel direction. For 36, the travel schedule 36a is notified.

  As described above, according to the navigation device 1 according to the seventh embodiment, the significant other vehicle having a higher relationship with the traveling of the own vehicle is narrowed down and the traveling schedule of the other vehicle is notified. The burden on the user can be further suppressed.

  In the above description, the threshold value for extracting other vehicles to be notified from the other vehicles 31, 32, 33 whose traveling direction is the same as the traveling schedule of the own vehicle 21, and the traveling schedule and traveling of the own vehicle 21. The same distance R3 was applied to the threshold for extracting other vehicles to be notified from the other vehicles 36 and 37 having different directions. However, the present invention is not limited to this, and a different distance may be applied to the former threshold value and the latter threshold value.

<Modification>
The driving support device applied to the navigation device 1 described above is not only a vehicle-mounted device mounted on the host vehicle, but also a PND (Portable Navigation Device) and a portable terminal (for example, a portable device) that can be mounted on the host vehicle. The present invention can also be applied to a driving support device constructed as a system by appropriately combining a telephone, a smartphone, a tablet, and the like) and a server. In this case, each function or each component of the navigation device 1 described above is distributed and arranged in each device constituting the system.

  For example, in the above description, the configuration in which the driving support device is applied to a navigation device mounted on a vehicle has been described. However, the configuration is not limited thereto, and may be applied to, for example, the PND and the mobile terminal. .

  Further, the configuration in which the map data storage unit 13 that acquires and stores map data from the outside of the navigation device 1 is applied to the data acquisition unit has been described above. However, the data acquisition unit is not limited to the map data storage unit 13 as long as it acquires map data. For example, the data acquisition unit may acquire map data by an operation of a writing device outside the navigation device 1 and store the map data so as not to change thereafter.

  Further, the configuration in which the current position detection unit 14 that detects the current position of the host vehicle is applied to the current position acquisition unit has been described above. However, the current position acquisition unit is not limited to the current position detection unit 14 as long as it acquires the current position of the host vehicle. For example, the current position acquisition unit may receive the current position of the host vehicle from a current position detection device (for example, a smartphone) outside the navigation device 1.

  Further, the configuration in which the route calculation unit 15 that calculates the route to the destination is applied to the route acquisition unit has been described above. However, the route acquisition unit is not limited to the route calculation unit 15 as long as it acquires a route to the destination. For example, the route acquisition unit may receive from the communication calculation device a route to a destination calculated by a communication calculation device (for example, a smartphone or a server) external to the navigation device 1.

  In the above description, the configuration in which the wireless communication unit 17 that receives travel schedule information of another vehicle from the other vehicle is applied to the other vehicle information acquisition unit has been described. However, the other vehicle information acquisition unit is not limited to the wireless communication unit 17 as long as it acquires the traveling schedule information of the other vehicle. For example, the other vehicle information acquisition unit may receive travel schedule information of another vehicle from a communication device (for example, a smartphone or a server) external to the navigation device 1.

  Moreover, although the structure provided with the notification apparatus 11 in the navigation apparatus 1 was demonstrated above, if the notification apparatus is mounted in the own vehicle, it will not be restricted to this. For example, instead of the notification device 11, a mobile terminal (for example, a smartphone) having a notification function equivalent to that may be used.

  FIG. 14 shows, as one specific example, navigation devices 61a and 62a (notification devices) that are mounted on the own vehicle 61 and the other vehicle 62, respectively, and perform notification for supporting the traveling of the own vehicle 61 and the other vehicle 62, and 2 is a diagram showing a configuration in which each function or each component of the navigation device 1 is distributed to a server 71 (notification control device) that can control the communication via communication.

  The server 71 includes a map data storage unit 72, a route calculation unit 15, a map data storage unit 72, a route calculation unit 73, a wireless communication unit having functions equivalent to those of the map data storage unit 13, the route calculation unit 15, the wireless communication unit 17, and the control unit 18 of the first embodiment (FIG. 1). The communication unit 74 and the control unit 75 are provided.

  On the other hand, as the navigation devices 61a and 62a, for example, a device obtained by removing the map data storage unit 13, the route calculation unit 15, the wireless communication unit 17, and the like from the navigation device 1 described in the first embodiment or the like is used.

  FIG. 15 is a flowchart showing operations of the server 71 and the navigation devices 61a and 62a shown in FIG. This operation is realized by the control unit 75 executing a program stored in a storage unit (not shown) of the server 71. Next, the operation of the server 71 will be described using this flowchart.

  First, in step S51, the wireless communication unit 74 (other vehicle information acquisition unit) communicates with the navigation device 62a mounted on the other vehicle 62 to obtain traveling schedule information including the current position and the traveling schedule of the other vehicle 62. Receive (acquire). The wireless communication unit 74 (own vehicle information acquisition unit) communicates with the navigation device 61a mounted on the own vehicle 61 and receives the current position of the own vehicle 61 and the destination to which the own vehicle 61 should reach. (get.

  In step S52, the route calculation unit 73 calculates a route from the current position to the destination from the map data based on the current position and the destination of the host vehicle 61 received by the wireless communication unit 74.

  In step S <b> 53, based on the route of the host vehicle 61 calculated by the route calculation unit 73 and the travel schedule information of the other vehicle 62 received by the wireless communication unit 74, the control unit 75 sets the other vehicle 62. It is determined whether or not the current position is included in the route of the vehicle 61. If it is determined that the other vehicle is included in the route, the process proceeds to step S54. If it is determined that the other vehicle is not included in the route, the process returns to step S51.

  In step S54, the control unit 75 controls the navigation device 61a of the host vehicle 61 via the wireless communication unit 74, thereby determining the travel schedule of the other vehicle determined to be included in the route in step S53. The navigation device 61a is notified. Thereafter, the process returns to step S51.

  According to the server 71 according to the modification as described above, the same effects as those of the first embodiment can be obtained. Moreover, according to this structure, the process in CPU of navigation apparatus 61a, 62a can be simplified.

  It should be noted that the present invention can be freely combined with each other within the scope of the invention, and each embodiment can be appropriately modified or omitted.

  1 navigation device, 11, 61a notification device, 13, 72 map data storage unit, 14 current position detection unit, 15, 73 route calculation unit, 17, 74 wireless communication unit, 18, 75 control unit, 21, 61 own vehicle, 22 Planned travel route, 71 servers.

Claims (9)

A travel support device that supports the travel of the host vehicle using a notification from a notification device mounted on the host vehicle,
A data acquisition unit for acquiring map data;
A current position acquisition unit for acquiring a current position of the vehicle;
A route acquisition unit for acquiring a route to the destination calculated from the map data based on a current position of the host vehicle and a destination to which the host vehicle should reach;
Other vehicle information acquisition unit for acquiring travel schedule information including the current position of the other vehicle and the travel schedule;
Based on the route acquired by the route acquisition unit and the travel schedule information of the other vehicle acquired by the other vehicle information acquisition unit, the travel schedule of the other vehicle included in the route is transmitted to the notification device. A travel support apparatus comprising a control unit for notification. The driving support device according to claim 1,
The controller is
The current travel direction of the other vehicle is determined based on the travel schedule information of the other vehicle acquired by the other vehicle information acquisition unit, and among other vehicles included in the route, the current travel direction of the other vehicle And a travel support device that causes the notification device to notify the travel schedule of other vehicles having the same travel schedule of the host vehicle corresponding to the current position of the other vehicle. It is a driving assistance device according to claim 1 or 2,
The controller is
A travel support device that causes the notification device to notify the travel schedule of other vehicles whose travel schedule crosses the route of the host vehicle among other vehicles included in the route. A driving support device according to any one of claims 1 to 3,
The controller is
A travel support device that causes the notification device to notify the travel schedule of other vehicles whose distance from the current position of the host vehicle is shorter than a threshold among other vehicles included in the route. The driving support device according to claim 4,
The controller is
A travel support device that changes the threshold based on the travel speed of the host vehicle. A driving support device according to any one of claims 1 to 5,
The other vehicle information acquisition unit
A travel support device that acquires the travel schedule information of the other vehicle via road-to-vehicle communication when vehicle-to-vehicle communication with another vehicle is not possible. A driving support device according to any one of claims 1 to 5,
The other vehicle information acquisition unit
A travel support device that acquires the travel schedule information of another vehicle via vehicle-to-vehicle communication that relays a vehicle different from the other vehicle when vehicle-to-vehicle communication with the other vehicle is not possible. A travel support method for supporting travel of the host vehicle using a notification of a notification device mounted on the host vehicle,
(A) detecting a current position of the vehicle;
(B) calculating a route to the destination from map data based on the current position of the host vehicle and the destination to which the host vehicle should arrive;
(C) Based on the route calculated in the step (b) and travel schedule information including the current position and travel schedule of the other vehicle, the travel schedule of the other vehicle included in the route is stored in the notification device. A driving support method comprising a step of notifying. A notification control device that can be controlled via communication, a notification device that is mounted on the host vehicle and performs notification to support the traveling of the host vehicle,
A data storage unit for storing map data;
A vehicle information acquisition unit that acquires a current position of the vehicle and a destination that the vehicle should reach;
A route calculation unit that calculates a route to the destination from the map data based on the current position of the host vehicle and the destination;
Other vehicle information acquisition unit for acquiring travel schedule information including the current position of the other vehicle and the travel schedule;
Based on the route calculated by the route calculation unit and the travel schedule information of the other vehicle acquired by the other vehicle information acquisition unit, the travel schedule of other vehicles included in the route is transmitted to the notification device. A notification control device comprising: a control unit that causes notification.

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