JP6245969B2 - Navigation system - Google Patents

Description

The present invention relates to a navigation system that executes navigation processing in conjunction with a mobile terminal.

  For example, Patent Document 1 discloses an in-vehicle device that automatically acquires route information of a mobile terminal by connecting to the mobile terminal by short-range wireless communication and performs navigation processing in conjunction with the navigation function of the mobile terminal. ing.

JP 2010-130669 A

In the conventional technique represented by Patent Document 1, the in-vehicle device itself does not have a navigation function, and the navigation processing is executed by the navigation function of the portable terminal connected by short-range wireless communication.
Further, the mobile terminal performs navigation processing by accessing the server device that manages the navigation application and the map data.
That is, Patent Document 1 only outputs the result of the navigation processing performed by the mobile terminal with the in-vehicle device, and the navigation function on the in-vehicle device side and the navigation function of the mobile terminal do not cooperate with each other. It is not assumed that the navigation during vehicle movement is switched continuously.
In recent years, there is a system for sharing route information between an in-vehicle navigation device and a mobile terminal using a cloud system. However, such a system requires access to a dedicated server device such as a cloud.
Furthermore, when route information is shared between the mobile terminal and the in-vehicle device, a user operation is generally required, and the route information is merely provided by an image or text.

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a navigation system capable of continuously switching between navigation during vehicle movement and navigation during walking.

The navigation system according to the present invention includes a wireless communication unit that establishes wireless communication with a portable terminal when the portable device is brought into a moving body based on route information and position information, and a wireless communication unit The route information transmission / reception unit for exchanging route information between the mobile terminal and the destination by established wireless communication, and the route information transmission / reception unit are controlled to share the route information with the mobile terminal, and the wireless communication with the mobile terminal is disconnected. A route information management unit that stops route guidance of the navigation device . When the mobile terminal is disconnected from the wireless communication unit, the wireless communication with the wireless communication unit is disconnected based on the route information shared with the navigation device and the position information of the mobile terminal. When it is determined that the nearest destination from the cut point is a transit point in the route information shared with the navigation device or that it is neither a destination nor a transit point, the cut point is the closest point on the return route that returns to the mobile unit. The route information of the return route as a waypoint from the destination of the destination is generated, route guidance is performed based on the route information of the return route, and the nearest destination is the destination of the route information shared with the navigation device If it is determined that the destination is a return route, the return route information is generated with the cut point being the return destination, and route guidance is performed based on the return route information. To do.

  According to this invention, there is an effect that it is possible to continuously switch between navigation during vehicle movement and navigation during walking.

It is a block diagram which shows the structure of the navigation system which used the navigation apparatus concerning Embodiment 1 of this invention as vehicle equipment. It is a flowchart which shows operation | movement of the vehicle equipment when a portable terminal is brought into the vehicle. It is a flowchart which shows operation | movement of a portable terminal when it is carried in the vehicle by which vehicle equipment is mounted. It is a flowchart which shows operation | movement of the vehicle equipment when a portable terminal is taken out from the vehicle. It is a flowchart which shows operation | movement of a portable terminal when it is taken out from the vehicle by which vehicle equipment is mounted. It is a figure which shows the outline | summary of the navigation process for the walk to the destination by a portable terminal. It is a figure which shows the outline | summary of the navigation process for a walk for returning to the parking lot by a portable terminal. It is a flowchart which shows operation | movement (the 1) of the navigation apparatus which concerns on Embodiment 2 of this invention. It is a flowchart which shows each operation | movement of a some portable terminal when it is brought into the vehicle by which the vehicle equipment which concerns on Embodiment 2 is mounted. It is a flowchart which shows operation | movement of the vehicle equipment which concerns on Embodiment 2 when a portable terminal is taken out from the vehicle.

Embodiment 1 FIG.
1 is a block diagram showing a configuration of a navigation system to which a navigation device according to Embodiment 1 of the present invention is applied. The navigation system shown in FIG. 1 includes an in-vehicle device 1 that is a navigation device mounted on a moving body (hereinafter referred to as a vehicle) and a portable terminal 2 brought into the vehicle.

  The in-vehicle device 1 is a navigation device that is mounted on a vehicle and executes so-called “vehicle navigation” that is route guidance accompanying movement of the vehicle, and includes a control unit 10, a navigation unit 11, a position information acquisition unit 12, A map DB (database) 13, a UI (user interface) unit 14, a display 15, a speaker 16, a travel route monitoring unit 17, a route information transmitting / receiving unit 18, and a short-range wireless communication unit 19 are configured.

  In addition, the mobile terminal 2 has a function of executing so-called “walking navigation” which is route guidance accompanying movement of a pedestrian or a bicycle occupant carrying the mobile device 2 based on route information shared with the in-vehicle device 1. And includes a control unit 20, a navigation unit 21, a position information acquisition unit 22, a UI unit 23, a display 24, a speaker 25, a movement route monitoring unit 26, a route information transmission / reception unit 27, and a short-range wireless communication unit 28. Composed.

  The control unit 10 in the in-vehicle device 1 is a control unit that inputs information on a route that is route-guided by the navigation unit 11 from the travel route monitoring unit 17 and shares it with the portable terminal 2, and includes a route information management unit 10a. The route information management unit 10a controls the route information transmission / reception unit 18 to share the route information to the destination with the mobile terminal 2, and when the short-range wireless communication with the mobile terminal 2 is disconnected, Processing to stop route guidance is performed.

The navigation unit 11 is a navigation unit that provides route guidance to a destination based on the map data read from the map DB 13 and the position information of the host vehicle acquired by the position information acquisition unit 12.
The position information acquisition unit 12 has a function of acquiring position information of the own vehicle. For example, the position information of the own vehicle is acquired by analyzing GPS radio waves received from GPS satellites via a GPS (Global Positioning System) antenna.
The map DB 13 is a database in which map data including facility information and road information is registered.

  The UI unit 14 is a processing unit that accepts an input operation by a user. For example, the UI unit 14 includes input hardware such as operation keys, operation buttons, and a touch panel, and software that outputs an input signal input thereto to the control unit 10. Composed. Note that a process for setting the user's destination can be performed via the UI unit 14.

  The display 15 is a display unit that displays information obtained by the processing of the control unit 10 and the navigation unit 11, and displays, for example, a road map near the vehicle position on the screen as a navigation screen. The speaker 16 is a voice output unit that outputs voice data to the outside, and for example, outputs voice guidance for route guidance.

  The travel route monitoring unit 17 sequentially inputs the vehicle position information that is always acquired by the position information acquisition unit 12, compares the route that the navigation unit 11 provides route guidance with the vehicle position information, and determines the initial route. When a vehicle is present on a road that deviates from the road, the road is output to the navigation unit 11 and the route information management unit 10a. Thereby, the navigation unit 11 restarts the route guidance by re-searching the route to the destination connected to the road, and outputs the re-searched route to the route information management unit 10a.

  The route information transmission / reception unit 18 is a communication processing unit that exchanges route information with the mobile terminal 2 by short-range wireless communication established by the short-range wireless communication unit 19 in accordance with an instruction from the route information management unit 10a. The short-range wireless communication unit 19 is a wireless communication unit that establishes short-range wireless communication with the portable terminal 2 when the portable terminal 2 is brought into the vehicle. For short-range wireless communication, for example, Bluetooth (registered trademark; not described below), NFC (near field communication), or the like is used.

  The control unit 10, the navigation unit 11, the position information acquisition unit 12, the UI unit 14, the travel route monitoring unit 17, the route information transmission / reception unit 18, and the short-range wireless communication unit 19 are information processing devices that function as the in-vehicle device 1. When the microcomputer executes a program related to processing unique to the present invention, it is realized as a specific means in which hardware and software cooperate. The map DB 13 may use, for example, a hard disk device, an SD card, a USB memory, or the like.

The control unit 20 in the portable terminal 2 is a control unit that manages route information in walking navigation using the portable terminal 2, and includes a route information management unit 20a.
The route information management unit 20a is a navigation unit based on the route information input from the in-vehicle device 1 via the route information transmission / reception unit 27 and the position information acquired by the position information acquisition unit 12 (position information of the portable terminal 2 in walking navigation). 21 manages route information representing the route that the route guides.

The navigation unit 21 is a navigation unit that performs route guidance to the destination based on the route information to the destination shared with the in-vehicle device 1 and the position information acquired by the position information acquisition unit 22. In the portable terminal 2 according to the present invention, information on a route that has been route-guided (vehicle navigation) by the in-vehicle device 1 is shared, and the destination information is acquired based on the route information and the position information acquired by the position information acquisition unit 22. Route guidance is performed.
Therefore, it is not necessary for the portable terminal 2 to separately acquire map data, and a map data server for managing map data is also unnecessary.

  The position information acquisition unit 22 has a function of acquiring position information of the mobile terminal 2. For example, as with the in-vehicle device 1, the position information of the mobile terminal 2 is acquired by analyzing GPS radio waves received from GPS satellites via a GPS antenna.

  The UI unit 23 is a processing unit that accepts an input operation by a user. For example, the UI unit 23 includes input hardware such as operation keys, operation buttons, and a touch panel, and software that outputs an input signal input to the control unit 20. Composed.

  The display 24 is a display unit that displays information obtained by the processing of the control unit 20 and the navigation unit 21, and displays, for example, a road map near the mobile terminal 2 on the screen as a navigation screen. The speaker 25 is a voice output unit that outputs voice data to the outside, and for example, outputs voice guidance for route guidance.

The movement route monitoring unit 26 sequentially inputs the position information of the portable terminal 2 that is always acquired by the position information acquisition unit 22, and compares the route that the navigation unit 21 guides the route with the position information of the portable terminal 2. When the mobile terminal 2 (the owner) is present on a road deviating from the original route, the road is output to the navigation unit 21 and the route information management unit 20a.
Thereby, the navigation unit 21 restarts the route guidance by re-searching the route to the destination connected to the road, and outputs the re-searched route to the route information management unit 20a.

  The route information transmission / reception unit 27 is a communication processing unit that exchanges route information with the in-vehicle device 1 by short-range wireless communication established by the short-range wireless communication unit 28 in accordance with an instruction from the route information management unit 20a. The short-range wireless communication unit 28 is a wireless communication unit that establishes short-range wireless communication with the vehicle-mounted device 1 of the vehicle when the mobile terminal 2 is brought into the vehicle. For short-range wireless communication, for example, Bluetooth or NFC (near field communication) is used in the same manner as the in-vehicle device 1.

  The control unit 20, the navigation unit 21, the position information acquisition unit 22, the UI unit 23, the movement route monitoring unit 26, the route information transmission / reception unit 27, and the short-range wireless communication unit 28 are information processing devices that function as the mobile terminal 2. When the microcomputer executes a program related to processing unique to the present invention, it is realized as a specific means in which hardware and software cooperate.

Next, the operation will be described.
FIG. 2 is a flowchart showing the operation of the in-vehicle device when the portable terminal is brought into the vehicle. Note that the operation shown in FIG. 2 is started when the in-vehicle device 1 starts up from the standby state.
First, when the user gets into the vehicle (step ST1), the short-range wireless communication unit 19 of the in-vehicle device 1 checks whether or not communication is established with the short-range wireless communication unit 28 (step ST2). The short-range wireless communication unit 19 of the in-vehicle device 1 establishes wireless communication with the portable terminal 2 when the portable terminal 2 is brought into the vehicle.

  When the mobile terminal 2 is brought into the vehicle and wireless communication is established with the short-range wireless communication unit 28 (step ST2; YES), the short-range wireless communication unit 19 informs the route information transmission / reception unit 18 to that effect. Notice. Upon receiving this notification, the route information transmitting / receiving unit 18 inquires of the route information transmitting / receiving unit 27 of the portable terminal 2 whether or not there is route information via short-range wireless communication (step ST3).

  When there is information on the route that the navigation unit 21 of the portable terminal 2 has been performing route guidance (walking navigation) before being brought into the vehicle (step ST3; YES), the route information transmission / reception unit 18 performs short-range wireless communication. The route information is received from the route information transmitting / receiving unit 27 and output to the route information managing unit 10a. Thereby, the vehicle equipment 1 shares the route information of the navigation for walking by the portable terminal 2 (step ST4). At this time, the in-vehicle device 1 is changed from the existing route information to the route information of the portable terminal 2, but the route information of the portable terminal 2 is newly set by the user. Therefore, novelty of the route information shared between the in-vehicle device 1 and the portable terminal 2 can be ensured. The route information management unit 10 a outputs the route information to the navigation unit 11.

  The navigation unit 11 is connected to the road indicated by the route information of the mobile terminal 2 input from the route information management unit 10a based on the map data read from the map DB 13 and the position information of the host vehicle acquired by the position information acquisition unit 12. Until the route guidance for the search result route is started (step ST5). Thereby, it is possible to continuously switch from walking navigation by the portable terminal 2 to vehicle navigation by the in-vehicle device 1.

On the other hand, when the mobile terminal 2 is not brought into the vehicle and wireless communication is not established with the short-range wireless communication unit 28 (step ST2; NO), the short-range wireless communication unit 19 notifies the route information transmission / reception unit. 18 is notified.
The route information transmitting / receiving unit 18 notifies the route information management unit 10a to that effect. Upon receiving this notification, the route information management unit 10a checks whether there is route information (route information of the in-vehicle device 1) that the navigation unit 11 of the in-vehicle device 1 has guided (step ST6).

If there is no route information that the navigation unit 11 of the in-vehicle device 1 has route-guided (step ST6; NO), the route information management unit 10a notifies the route information transmission / reception unit 18 to that effect.
Upon receiving this notification, the route information transmitting / receiving unit 18 waits for establishment of wireless communication between the short-range wireless communication units 19 and 28 and input of route information for a certain waiting time (step ST7).
When wireless communication with the portable terminal 2 is established within this standby time, the process proceeds to step ST2 and the above processing is performed.
When there is route information of the in-vehicle device 1 (step ST6; YES), the route information management unit 10a outputs the route information to the navigation unit 11. The navigation unit 11 is connected to the road indicated by the route information of the mobile terminal 2 input from the route information management unit 10a based on the map data read from the map DB 13 and the position information of the host vehicle acquired by the position information acquisition unit 12. Until the route guidance for the search result route is started (step ST5).

  When there is no route information for walking navigation by the navigation unit 21 of the portable terminal 2 (step ST3; NO), the route information transmitting / receiving unit 18 notifies the route information management unit 10a to that effect. Upon receiving this notification, the route information management unit 10a checks whether or not there is route information (route information of the in-vehicle device 1) that the navigation unit 11 of the in-vehicle device 1 has guided (step ST8).

If there is no route information (route information of the in-vehicle device 1) that the navigation unit 11 of the in-vehicle device 1 has guided (step ST8; NO), the route information management unit 10a waits for input of the route information by the UI unit 14 (Step ST9). Here, when a certain waiting time elapses, the process proceeds to step ST3, where presence / absence of route information of the portable terminal 2 is confirmed.
When there is route information of the in-vehicle device 1 (step ST8; YES), the route information transmission / reception unit 18 transmits the route information to the route information transmission / reception unit 27 via short-range wireless communication.
Thereby, in step ST4, the portable terminal 2 shares the route information of the navigation for vehicles by the vehicle equipment 1.

FIG. 3 is a flowchart showing the operation of the mobile terminal when it is brought into a vehicle equipped with an in-vehicle device. The operation shown in FIG. 3 is started from a state where the portable terminal 2 is brought into the vehicle and is waiting for establishment of wireless communication with the in-vehicle device 1.
First, the short-range wireless communication unit 28 of the mobile terminal 2 checks whether or not wireless communication has been established with the short-range wireless communication unit 19 (step ST1a).

  When communication is established with the short-range wireless communication unit 19 (step ST1a; YES), the short-range wireless communication unit 28 notifies the fact via the route information transmission / reception unit 27. Notify Upon receiving this notification, the route information management unit 20a checks whether or not there is route information (route information of the portable terminal 2) that the navigation unit 21 of the portable terminal 2 has guided (step ST2a).

When there is route information of the portable terminal 2 (step ST2a; YES), the route information transmission / reception unit 27 transmits the route information to the route information transmission / reception unit 18 via short-range wireless communication.
Thereby, the vehicle equipment 1 shares the route information of the navigation for walking by the portable terminal 2 (step ST3a). Thereafter, the portable terminal 2 stands by in a short-range wireless communication established state with the in-vehicle device 1 (step ST4a).

On the other hand, when communication is not established with the short-range wireless communication unit 19 (step ST1a; NO), the short-range wireless communication unit 28 notifies the route information transmission / reception unit 27 to that effect.
Upon receiving this notification, the route information transmitting / receiving unit 27 waits for establishment of wireless communication with the in-vehicle device 1 for a certain waiting time (step ST5a). When this standby time elapses, the process returns to step ST1a.

When there is no route information of the mobile terminal 2 (step ST2a; NO), the route information transmission / reception unit 27 determines whether there is route information for the route information transmission / reception unit 18 of the in-vehicle device 1 via short-range wireless communication. (Step ST6a).
When it is returned from the in-vehicle device 1 that there is no route information (step ST6a; NO), the route information transmitting / receiving unit 27 waits for input of route information for a certain waiting time (step ST7a). When this standby time elapses, the process proceeds to step ST2a.

  When it is returned that there is route information of the in-vehicle device 1 (step ST6a; YES), the route information transmission / reception unit 27 receives the route information from the route information transmission / reception unit 18 via short-range wireless communication, and receives the route information. Output to the management unit 20a. Thereby, in step ST3a, the portable terminal 2 shares the route information of the navigation for vehicles by the vehicle equipment 1.

FIG. 4 is a flowchart showing the operation of the in-vehicle device when the portable terminal is taken out of the vehicle. The operation illustrated in FIG. 4 is started from a state in which communication between the in-vehicle device 1 and the mobile terminal 2 is established.
The short-range wireless communication unit 19 of the in-vehicle device 1 confirms whether or not the short-range wireless communication with the mobile terminal 2 has been disconnected (step ST1b). The confirmation result is notified from the short-range wireless communication unit 19 to the route information transmitting / receiving unit 18.
If the short-range wireless communication with the mobile terminal 2 is not disconnected (step ST1b; NO), the route information transmitting / receiving unit 18 waits for disconnection of the wireless communication with the mobile terminal 2 for a certain waiting time (step ST2b). ). When this standby time has elapsed, the processing returns to step ST1b.

When the wireless communication with the portable terminal 2 is disconnected (step ST1b; YES), the route information transmitting / receiving unit 18 waits for establishment of the wireless communication with the portable terminal 2 for a certain waiting time.
When this standby time has elapsed, the route information transmitting / receiving unit 18 notifies the route information management unit 10a to that effect. Upon receiving this notification, the route information management unit 10a determines that the portable terminal 2 has been taken out of the vehicle to perform navigation for walking, and stops route guidance by the navigation unit 11 (step ST3b). Thereby, it can switch continuously from the navigation for vehicles by the vehicle equipment 1 to the navigation for walking by the portable terminal 2.

FIG. 5 is a flowchart showing the operation of the mobile terminal when it is taken out from the vehicle on which the in-vehicle device is mounted. The operation illustrated in FIG. 5 starts in a state where the in-vehicle device 1 and the mobile terminal 2 have established wireless communication.
First, the short-range wireless communication unit 28 of the mobile terminal 2 confirms whether or not the short-range wireless communication with the in-vehicle device 1 has been disconnected (step ST1c). The confirmation result is notified from the short-range wireless communication unit 28 to the route information transmitting / receiving unit 27.
If the short-range wireless communication with the in-vehicle device 1 is not disconnected (step ST1c; NO), the path information transmitting / receiving unit 27 waits for disconnection of the wireless communication with the in-vehicle device 1 for a certain waiting time (step ST2c). ). When this standby time elapses, the process returns to step ST1c.

When the short-range wireless communication with the in-vehicle device 1 is disconnected (step ST1c; YES), the route information transmitting / receiving unit 27 notifies the route information managing unit 20a to that effect.
Upon receiving this notification, the route information management unit 20a determines that the portable terminal 2 has been taken out of the vehicle to perform navigation for walking, and route information shared with the in-vehicle device 1 (route information for vehicle navigation). Is output to the navigation unit 21.

  The navigation unit 21 compares the route information shared with the in-vehicle device 1 with the location information of the mobile terminal 2 acquired by the location information acquisition unit 22 input via the movement route monitoring unit 26. It is determined whether or not a point at which wireless communication with the in-vehicle device 1 is disconnected (hereinafter referred to as a disconnected point) is the destination, that is, whether or not the destination has been reached (step ST3c). At this time, if the mobile terminal 2 has arrived at the destination (step ST3c; YES), the portable terminal 2 waits for establishment of short-range wireless communication with the in-vehicle device 1 for a certain waiting time (step ST10c). When this waiting time elapses, the process ends.

  When the mobile terminal 2 has not arrived at the destination (step ST3c; NO), the navigation unit 21 sequentially inputs the route information shared with the in-vehicle device 1 and the movement route monitoring unit 26. It is compared with the position information, and it is determined whether or not the nearest destination from the cut point is a transit point, that is, whether or not the transit point is reached by walking (step ST4c).

  FIG. 6 is a diagram showing an outline of the navigation processing for walking to the destination by the mobile terminal. As shown in FIG. 6 (a), if the nearest destination from the cut point is the stop point C (step ST4c; YES), the navigation unit 21 is a parking lot for the cut point A toward the stop point C. As shown in FIG. 6 (b), this cutting point A is added to the route information as the nearest stop point from the stop point C on the return route (step ST5c).

  On the other hand, when the latest destination from the cut point is not the stop point C (step ST4c; NO), the navigation unit 21 determines whether or not the latest destination from the cut point A is the destination B, that is, by walking. It is determined whether or not the point to be moved to is the destination (step ST6c). If the nearest destination is not the destination B (step ST6c; NO), the navigation unit 21 switches to walking navigation at a point that is neither a waypoint nor a destination. The point A is added to the nearest waypoint or the waypoint to be reached by walking from the destination (step ST7c).

When the latest destination is the destination B (step ST6c; YES), the navigation unit 21 changes the destination B to a new waypoint and changes the cutting point A to a new one as shown in FIG. The destination is registered in the return route information (step ST8c).
In the route information when the process of step ST5c is completed, the cutting point A is additionally registered as the nearest stop point from the stop point C shown in FIG.
In addition, as shown in FIG. 7B, the route information when the process of step ST7c is completed is as follows. As shown in FIG. The cutting point A is additionally registered as a stopover from.
Thereafter, using the route information, the navigation unit 21 of the mobile terminal 2 starts route guidance (walking navigation) (step ST9c). When this walking navigation is completed, the process proceeds to step ST10c.
When the navigation for walking is completed and the vehicle returns to the vehicle, the short-range wireless communication between the in-vehicle device 1 and the portable terminal 2 is established, and the route information management unit 10a performs the processing of FIG. The route information of the return route guidance by the portable terminal 2 is shared, and the navigation unit 11 determines a new waypoint and destination based on the route information of the return route guidance, map data, and vehicle position information. Including return route guidance.

As described above, according to the first embodiment, when the portable terminal 2 having the function of performing route guidance based on the route information and the position information is brought into the vehicle, wireless communication with the portable terminal 2 is performed. The short-range wireless communication unit 19 to be established, the route information transmission / reception unit 18 for exchanging route information with the portable terminal 2 by wireless communication established by the short-range wireless communication unit 19, and the route information transmission / reception unit 18 are controlled to reach the destination. The route information management unit 10a that stops the route guidance of the navigation unit 11 when the wireless communication with the portable terminal 2 is disconnected and the wireless communication with the portable terminal 2 is disconnected.
Thus, since the walking state and the vehicle movement state are determined only from the presence / absence of wireless communication between the in-vehicle device 1 and the portable terminal 2, according to the presence / absence of the wireless communication without requiring a complicated operation from the user. It is possible to continuously switch between walking navigation and vehicle navigation. In addition, a dedicated server device (cloud) or the like is unnecessary, and a navigation system with a simple configuration can be realized.

  Further, according to the first embodiment, the mobile terminal 2 uses the new destination as the destination and the return route using the point where the wireless communication with the short-range wireless communication unit 19 is disconnected as the new destination. The route information management unit 10a controls the route information transmission / reception unit 18 to share the route information of the return route guidance by the mobile terminal 2, and the navigation unit 11 provides the route information of the return route guidance and the map data. In addition, based on the position information of the vehicle, route guidance for a return route including a new waypoint and destination is performed. With this configuration, it is possible to continuously switch between walking navigation and vehicle navigation on the return path.

Embodiment 2. FIG.
In the second embodiment, the in-vehicle device 1 communicates with the plurality of portable terminals 2 brought into the vehicle at the same time, and navigation is performed continuously during walking and when the vehicle moves.
Note that the in-vehicle device 1 and the mobile terminal 2 according to the second embodiment have basically the same configurations as those of the first embodiment, and therefore, refer to FIG. 1 for these configurations.

Next, the operation will be described.
FIG. 8 is a flowchart showing the operation of the navigation device according to Embodiment 2 of the present invention, and shows the operation of the in-vehicle device 1 when a plurality of portable terminals 2 are brought into the vehicle. Note that the operation shown in FIG. 8 is started when the in-vehicle device 1 starts up from the standby state.

First, when the user gets into the vehicle (step ST1d), whether or not the short-range wireless communication unit 19 of the in-vehicle device 1 has established communication with the short-range wireless communication unit 28 of the portable terminal 2 (one unit). Is confirmed (step ST2d).
When no portable terminal 2 is brought into the vehicle and wireless communication is not established with the short-range wireless communication unit 28 (step ST2d; NO), the short-range wireless communication unit 19 informs the route information transmission / reception unit. 18 is notified. Further, the route information transmitting / receiving unit 18 notifies the route information management unit 10a to that effect.

  Upon receiving this notification, the route information management unit 10a checks whether there is route information (route information of the in-vehicle device 1) that the navigation unit 11 of the in-vehicle device 1 has guided (step ST13d). If there is no route information (route information of the in-vehicle device 1) that the navigation unit 11 of the in-vehicle device 1 has guided (step ST13d; NO), the route information management unit 10a notifies the route information transmission / reception unit 18 to that effect. To do. Upon receiving this notification, the route information transmitting / receiving unit 18 waits for establishment of wireless communication between the short-range wireless communication units 19 and 28 and input of route information for a certain waiting time (step ST14d). If wireless communication with the portable terminal 2 is established within this waiting time, the process proceeds to step ST2d and the above processing is performed.

  If there is route information of the in-vehicle device 1 (step ST13d; YES), the route information management unit 10a outputs the route information to the navigation unit 11. The navigation unit 11 is connected to the road indicated by the route information of the mobile terminal 2 input from the route information management unit 10a based on the map data read from the map DB 13 and the position information of the host vehicle acquired by the position information acquisition unit 12. A route guidance for the route as a search result is started (step ST10d).

  On the other hand, when the portable terminal 2 is brought into the vehicle and wireless communication is established with the short-range wireless communication unit 28 (step ST2d; YES), the short-range wireless communication unit 19 includes a plurality of portable terminals. 2 confirms whether or not wireless communication has been established with each of the two short-range wireless communication units 28 (step ST3d). Here, if wireless communication has not been established with a plurality of portable terminals 2 (step ST3d; NO), the vehicle-mounted device 1 is in a state in which communication with one portable terminal 2 has been established. The process proceeds to (processing from step ST2 in FIG. 2).

  When wireless communication is established with a plurality of mobile terminals 2 (step ST3d; YES), the short-range wireless communication unit 19 confirms whether or not there is a master terminal among the plurality of mobile terminals 2. (Step ST4d). If there is no master terminal (step ST4d; NO), the short-range wireless communication unit 19 notifies the route information management unit 10a via the route information transmission / reception unit 18. Upon receiving this notification, the route information management unit 10a instructs the display 15 to display a master terminal selection screen, and accepts selection of a master terminal using the UI unit 14 (step ST5d). Here, the process of step ST5d is repeated until the master terminal is selected by the user (step ST6d; NO).

  When the master terminal is selected by the user (step ST6d; YES), or when there is a master terminal among the plurality of mobile terminals 2 (step ST4d; YES), the route information management unit 10a is a route information transmission / reception unit. 18 notifies the short-range wireless communication unit 19 via 18. Upon receiving this notification, the short-range wireless communication unit 19 waits in a state where wireless communication with the portable terminal 2 other than the master terminal is established (step ST7d).

Next, the route information transmitting / receiving unit 18 inquires of the route information transmitting / receiving unit 27 of the master terminal whether or not there is route information through short-range wireless communication (step ST8d).
When there is information on a route that has been route-guided (walking navigation) by the navigation unit 21 of the master terminal (step ST8d; YES), the route information transmission / reception unit 18 sends the route information from the route information transmission / reception unit 27 to the route via short-range wireless communication. Information is received and output to the route information management unit 10a. Thereby, the vehicle equipment 1 shares the route information of the navigation for walk by a master terminal (step ST9d). The route information management unit 10 a outputs the route information to the navigation unit 11.

  The navigation unit 11 is connected to the road indicated by the route information of the master terminal input from the route information management unit 10a based on the map data read from the map DB 13 and the position information of the own vehicle acquired by the position information acquisition unit 12. The route to the ground is searched, and route guidance for the route of the search result is started (step ST10d). Thereby, it is possible to continuously switch from walking navigation by the master terminal to vehicle navigation by the in-vehicle device 1.

When there is no route information of the master terminal (step ST8d; NO), the route information transmitting / receiving unit 18 notifies the route information management unit 10a to that effect.
Upon receiving this notification, the route information management unit 10a checks whether or not there is route information (route information of the in-vehicle device 1) that the navigation unit 11 of the in-vehicle device 1 has guided (step ST11d).

If there is no route information of the in-vehicle device 1 (step ST11d; NO), the route information management unit 10a waits for input of route information by the UI unit 14 (step ST12d).
Here, when a certain waiting time elapses, the process proceeds to step ST8d, and the presence / absence of the route information of the master terminal is confirmed again.

  When there is route information of the in-vehicle device 1 (step ST11d; YES), the route information transmitting / receiving unit 18 transmits the route information to the route information transmitting / receiving unit 27 of the master terminal via short-range wireless communication. Thereby, in step ST9d, the master terminal shares the route information of the vehicle-mounted device 1.

FIG. 9 is a flowchart showing the operation of each of the plurality of mobile terminals when brought into a vehicle on which the in-vehicle device according to Embodiment 2 is mounted.
First, the short-range wireless communication unit 28 of the mobile terminal 2 checks whether or not wireless communication has been established with the short-range wireless communication unit 19 (step ST1e).
Here, when communication is not established with the short-range wireless communication unit 19 (step ST1e; NO), the short-range wireless communication unit 28 notifies the route information transmission / reception unit 27 to that effect.
Upon receiving this notification, the route information transmitting / receiving unit 27 waits for establishment of wireless communication with the in-vehicle device 1 for a certain waiting time (step ST2e). When this standby time has elapsed, the process returns to step ST1e.

  If communication is established with the short-range wireless communication unit 19 (step ST1e; YES), the short-range wireless communication unit 28 notifies the fact via the route information transmission / reception unit 27. Notify Upon receiving this notification, the route information management unit 20a checks whether or not there is route information (route information of the portable terminal 2) that the navigation unit 21 of the portable terminal 2 has guided (step ST3e).

When there is route information of the portable terminal 2 (step ST3e; YES), the route information transmitting / receiving unit 27 confirms whether or not it is the master terminal (step ST4e). Here, if the terminal itself is not the master terminal, the process proceeds to step ST6e.
When the mobile terminal itself is a master terminal (step ST4e; YES), the route information transmitting / receiving unit 27 transmits the route information to the route information transmitting / receiving unit 18 via short-range wireless communication.
Thereby, the vehicle-mounted apparatus 1 shares the route information of the navigation for walking by the portable terminal 2 (step ST5e).
In step ST6e, the portable terminal 2 stands by in a short-range wireless communication established state with the in-vehicle device 1.

On the other hand, when there is no route information of the portable terminal 2 (step ST3e; NO), the route information transmission / reception unit 27 determines whether there is route information for the route information transmission / reception unit 18 of the in-vehicle device 1 via short-range wireless communication. (Step ST7e).
When it is returned from the in-vehicle device 1 that there is no route information (step ST7e; NO), the route information transmitting / receiving unit 27 waits for input of route information for a certain waiting time (step ST8e). When this standby time elapses, the process proceeds to step ST3e.

When it is returned that there is route information of the in-vehicle device 1 (step ST7e; YES), the route information transmission / reception unit 27 receives the route information from the route information transmission / reception unit 18 via short-range wireless communication, and receives the route information. Output to the management unit 20a.
At this time, the in-vehicle device 1 transmits the route information to all the mobile terminals 2 in which the short-range wireless communication is in an established state. Thereby, all the portable terminals 2 brought into the vehicle share the vehicle navigation route information by the in-vehicle device 1 (step ST9e).

FIG. 10 is a flowchart showing the operation of the in-vehicle device when the portable terminal is taken out of the vehicle. The operation illustrated in FIG. 10 is started from a state in which communication between the in-vehicle device 1 and the portable terminal 2 is established.
The short-range wireless communication unit 19 of the in-vehicle device 1 confirms whether or not the short-range wireless communication with the mobile terminal 2 has been disconnected (step ST1f). The confirmation result is notified from the short-range wireless communication unit 19 to the route information transmitting / receiving unit 18.
If the short-range wireless communication with the mobile terminal 2 is not disconnected (step ST1f; NO), the path information transmitting / receiving unit 18 waits for disconnection of the wireless communication with the mobile terminal 2 for a certain waiting time (step ST2f). ). When this standby time has elapsed, the process returns to step ST1f.

  When the wireless communication with the mobile terminal 2 is disconnected (step ST1f; YES), the route information transmitting / receiving unit 18 accesses the master terminal among the mobile terminals 2 in the vehicle via the short-range wireless communication, and is mounted on the vehicle. The route information shared by the device 1 with the master terminal is received as master terminal information. The master terminal information is output from the route information transmitting / receiving unit 18 to the route information managing unit 10a and held (step ST3f).

Thereafter, the route information transmitting / receiving unit 18 waits for establishment of wireless communication with the portable terminal 2 in the vehicle for a certain waiting time. When this standby time has elapsed, the route information transmitting / receiving unit 18 notifies the route information management unit 10a to that effect.
Upon receiving this notification, the route information management unit 10a determines that the portable terminal 2 has been taken out of the vehicle to perform walking navigation, and stops route guidance by the navigation unit 11 (step ST4f). Thereby, it can switch continuously from the navigation for vehicles by the vehicle equipment 1 to the navigation for walking by the portable terminal 2.

As described above, according to the second embodiment, when the route information management unit 10a brings a plurality of portable terminals 2 into the vehicle, the portable terminal set as the master among the plurality of portable terminals 2. 2 share the route information to the destination.
With this configuration, even when a plurality of mobile terminals 2 are brought into the vehicle, the walking state and the vehicle movement state are determined only from the presence or absence of wireless communication between the in-vehicle device 1 and the mobile terminal 2. Therefore, a navigation system with a simple configuration can be realized.

  In the first and second embodiments, the case where a vehicle is taken as an example of the moving body is shown. However, the navigation device according to the present invention is a navigation device for a moving body including a railroad, a ship, an aircraft, etc. in addition to the vehicle. It relates to the device.

  In the present invention, within the scope of the invention, any combination of each embodiment, any component of each embodiment can be modified, or any component can be omitted in each embodiment. .

  DESCRIPTION OF SYMBOLS 1 In-vehicle apparatus, 2 Portable terminal, 10,20 Control part, 10a, 20a Route information management part, 11,21 Navigation part, 12,22 Location information acquisition part, 13 Map DB, 14,23 UI part, 15,24 Display 16, 25 Speaker, 17 Travel route monitoring unit, 18, 27 Route information transmission / reception unit, 19, 28 Short-range wireless communication unit, 26 Travel route monitoring unit.

Claims (2)

A navigation system comprising a navigation device mounted on a mobile body and a portable terminal having a function of performing route guidance,
The navigation device
A wireless communication unit that establishes wireless communication with the mobile terminal when the mobile terminal is brought into the mobile body based on route information and position information;
A route information transmission / reception unit for exchanging route information to the destination with the mobile terminal by wireless communication established by the wireless communication unit;
A route information management unit that controls the route information transmission / reception unit to share the route information with the portable terminal and stops route guidance of the navigation device when wireless communication with the portable terminal is disconnected; ,
The portable terminal is
When wireless communication with the wireless communication unit is disconnected, based on the route information shared with the navigation device and the location information of the mobile terminal,
When it is determined that the nearest destination from the disconnection point at which the wireless communication with the wireless communication unit is disconnected is a transit point in the route information shared with the navigation device, or is neither a destination nor a transit point In addition,
Generate route information of the return route as a waypoint from the nearest destination on the return route returning to the moving body, and perform route guidance based on the route information of the return route,
When it is determined that the most recent destination is the destination of the route information shared with the navigation device,
Navigation information is generated based on the route information of the return route by generating route information of the return route with the destination as the waypoint of the return route and the cut point as the destination of the return route. system.   The route information management unit shares route information to the destination with a portable terminal set as a master among the plurality of portable terminals when a plurality of portable terminals are brought into the mobile body. The navigation system according to claim 1, wherein:

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