JP6822780B2 - Information display device and information display method - Google Patents

Description

The present invention relates to an information display device and an information display method.

Patent Document 1 describes a car navigation device as described in "A car navigation device that searches for a travel route to a destination based on link information of links connecting nodes and connection information between links and provides route guidance. Establish a database that registers the facilities to be guided while driving the link, the contents of the guide, and the guide start point in association with the link. Start the guide of the facility whose vehicle position is registered in relation to the link while driving If it matches the point, the guide content of the facility corresponding to the guide start point is read from the database and guided by voice, image, or the like. "

Japanese Unexamined Patent Publication No. 2005-326349

In the car navigation device of Patent Document 1, tourist spot information is linked in advance to a link connecting nodes, and if the link is included in the search route from the current location to the destination, a tourist guide is provided. .. However, if the link is not included in the search route, the tourist guide will not be provided even if there are tourist spots relatively nearby. Therefore, the user may not be aware of the tourist spot.

Also, when a tourist spot is guided, the user may want to make a detour to the tourist spot. In that case, the user needs to register the tourist spot in the car navigation device and instruct a new route search. However, such an operation is troublesome, and the operation during running should be avoided from the viewpoint of safety.

Therefore, an object of the present invention is to provide an information display device capable of notifying a traveling user of the existence of a tourist spot and displaying a search route via the tourist spot with a simpler operation.

In order to solve the above problems, the information display device according to the present invention searches for a route search unit that searches for a route to a destination via a waypoint, and a tourist spot within a predetermined range of the route. Detour guidance information including information indicating the direction of the destination, a point to turn in the direction of the tourist spot, and information indicating the direction of the tourist spot is generated, and the direction guidance display sign indicating the destination direction is used. The detour guide generation unit is provided with a detour guide generation unit that displays the direction of the tourist spot, and the detour guide generation unit displays the tourist spot when the vehicle turns in the direction of the tourist spot at the point previously guided by the detour guide information. that displays a message confirming whether or not to set the waypoint.

According to the information display device according to the present invention, it is possible to notify a traveling user of the existence of a tourist spot and display a search route via the tourist spot with a simpler operation.

Issues, configurations, effects, and the like other than the above will be clarified by the following description of the embodiments.

It is a figure which showed the schematic structure of the information display device which concerns on this invention. It is a figure which showed an example of the functional block of the information display device which concerns on this invention. It is a figure which showed an example of POI information which concerns on this invention. It is a flow chart which showed an example of the flow of the detour guide generation processing which concerns on this invention. It is a figure which showed an example of the detour guidance information which concerns on this invention. It is a figure which showed an example of the detour guidance information displayed on the display which concerns on this invention. It is a flow chart which showed an example of the flow of the waypoint setting process which concerns on this invention. It is a figure which showed an example of the pop-up window which contains the confirmation message which concerns on this invention. It is a flow chart which showed an example of the flow of the detour guide generation processing which concerns on 2nd Embodiment of this invention. FIG. 5 is a flow chart showing an example of a detour guidance generation process executed when it is determined that the destination is not home in the process of step S033 according to the second embodiment of the present invention. In the detour guide generation process according to the second embodiment of the present invention, the detour guide generated when the destination is not the home but a temporary route with the tourist spot as the destination is searched from the current location (step S051). It is a figure which showed an example of information. FIG. 12A is a diagram showing an example of detour guidance information according to the modified example. FIG. 12B is a diagram showing an example of a message to be confirmed by the user according to the modified example.

Hereinafter, an embodiment of the present invention will be described.

<First Embodiment>
FIG. 1 is a diagram showing a schematic configuration of an information display device 100 according to the present embodiment. The information display device 100 can be realized by, for example, an in-vehicle navigation device having a navigation function. Here, the navigation function is a function provided in a normal navigation device such as display of map information, search for a recommended route from a departure point (or current location) to a destination, route guidance, and display of road traffic information. The information display device 100 is not limited to the in-vehicle navigation device, and may be, for example, a smartphone, a tablet terminal, a PDA (Personal Data Assistance), or the like. In this case, the navigation function is provided by the application program installed on these devices.

As shown in the figure, the information display device 100 includes an arithmetic processing device 1, a display 2, a storage device 3, an audio input / output device 4, an input device 5, a ROM (Read Only Memory) device 6, and a vehicle speed sensor. 7, a gyro sensor 8, a GPS (Global Positioning System) receiving device 9, an FM multiplex broadcasting receiving device 10, a beacon receiving device 11, and a communication device 12.

The arithmetic processing unit 1 is a central unit that performs various processes of the information display device 100. The arithmetic processing device 1 identifies the current location of the vehicle on the map by using, for example, various sensors such as the vehicle speed sensor 7 and the gyro sensor 8 and the information output from the GPS receiving device 9. Further, the arithmetic processing unit 1 reads out the map information necessary for display from the storage device 3 or the ROM device 6 based on the obtained current location information. Further, the arithmetic processing unit 1 graphics-develops the read map information, superimposes a mark indicating the current location on the graphic, and outputs a signal to be displayed on the display 2. Further, the arithmetic processing unit 1 searches (calculates) a recommended route connecting the departure place and the destination instructed by the user by using the map information stored in the storage device 3 or the ROM device 6. Further, the arithmetic processing unit 1 outputs a predetermined signal to the speaker 42 and the display 2 to guide the route.

Further, the arithmetic processing unit 1 executes a detour guidance information generation process. The detour guidance information generation process generates detour guidance information indicating the right / left turn point (right / left turn point) in the direction in which the tourist spot exists. Further, the arithmetic processing unit 1 executes the waypoint setting process. By the waypoint setting process, the search route with the tourist spot guided to the user as the waypoint is displayed. The details of the detour guidance generation process and the waypoint setting process will be described later.

Such a calculation processing device 1 includes a CPU 21 (Central Processing Unit) that executes various processes such as numerical calculation and control of each device, and map information and calculation data read from a memory device such as a storage device 3 or a ROM 23. RAM 22 (Random Access Memory) that temporarily stores the data, ROM 23 that stores the boot program realized by the CPU 21, and I / F 24 (interface) for connecting various hardware to the arithmetic processing unit 1. It has a bus 25 that connects to each other.

The display 2 is a unit that displays graphic information. The display 2 is composed of, for example, a liquid crystal display or an organic EL display.

The storage device 3 is composed of at least a readable and writable storage medium such as an HDD (Hard Disk Drive) and a non-volatile memory card. The storage device 3 stores, for example, various information (for example, map information) used by the arithmetic processing unit 1.

The voice input / output device 4 has a microphone 41 as a voice input device and a speaker 42 as a voice output device. The microphone 41 acquires voices outside the information display device 100, such as voices uttered by the driver and passengers (user utterances). Further, the speaker 42 outputs the voice information generated by the arithmetic processing unit 1 into the vehicle.

The input device 5 is a device that receives an instruction input from the user. The input device 5 includes a touch panel 51, a dial switch 52, and other hard switches such as scroll keys (not shown). The input device 5 outputs information corresponding to the operation of each key or each switch to another device such as the arithmetic processing unit 1.

The touch panel 51 is an input device mounted on the display surface side of the display 2 so that the display screen can be seen through. The touch panel 51 detects a touch with a human finger or a touch with a dedicated touch pen. The touch position by the user is specified, for example, based on the XY coordinates set on the touch panel 51. Such a touch panel 51 is composed of, for example, an input detection element based on a capacitance method.

The ROM device 6 is composed of at least a readable storage medium such as a ROM such as a CD (Compact Disk) -ROM or a DVD (Digital Versaille Disk) -ROM, or an IC (Integrated Circuit) card. For example, moving image data, audio data, and the like are stored in this storage medium.

The vehicle speed sensor 7 is a sensor that detects the vehicle speed. The gyro sensor 8 is composed of an optical fiber gyro, a vibrating gyro, or the like, and is a sensor that detects an angular velocity due to rotation of a moving body. The GPS receiving device 9 receives a signal from a GPS satellite and measures the distance between the moving body and the GPS satellite and the rate of change of the distance for three or more satellites, thereby performing the current location, traveling speed, and traveling speed of the moving body. Measure the direction of travel. The information output from these sensors and devices is used in the arithmetic processing unit 1 to detect the current location of the vehicle on which the information display device 100 is mounted.

The FM multiplex broadcast receiving device 10 receives the FM multiplex broadcast signal sent from the FM broadcast station. FM multiplex broadcasting includes general current traffic information of VICS information, regulation information, SA / PA (service area / parking area) information, parking lot information, weather information, and text information provided by radio stations as FM multiplex general information. include.

The beacon receiving device 11 receives general current traffic information such as VICS information, regulation information, SA / PA (service area / parking area) information, parking lot information, weather information, emergency warning, and the like. The beacon receiving device 11 includes, for example, an optical beacon that communicates by light, a radio beacon that communicates by radio waves, and the like.

The communication device 12 is a communication unit for transmitting and receiving information to and from an external device (for example, a server device in this embodiment).

The hardware configuration of the information display device 100 has been described above.

Next, a functional block showing the functional configuration of the information display device 100 will be described. FIG. 2 is a diagram showing an example of a functional block of the information display device 100. The information display device 100 includes a calculation unit 101, a storage unit 102, and a communication unit 103. Further, the calculation unit 101 includes an overall control unit 111, an input reception unit 112, a display information generation unit 113, a route search unit 114, and a detour guidance generation unit 115.

The overall control unit 111 is a functional unit that controls various processes of the information display device 100. Specifically, the overall control unit 111 outputs various information acquired via the input reception unit 112 and the communication unit 103 to a predetermined function unit according to the type and content of the information. Further, the overall control unit 111 controls each functional unit so that each functional unit performs each process at an appropriate timing.

The input receiving unit 112 is a functional unit that receives instructions and information input from the user via the input device 5 (in this case, the touch panel 51, the dial switch 52, etc.) included in the information display device 100. Specifically, the input receiving unit 112 receives instructions and inputs from the user such as registration of the user's home (home position), input of the departure place and destination, and search instruction of the recommended route via the input device 5.

The display information generation unit 113 is a functional unit that generates screen information that constitutes a display screen. Specifically, the display information generation unit 113 generates information (for example, a map, a guidance route, a road traffic information, etc.) required to be displayed on the display 2, and outputs the information to the display 2.

The route search unit 114 is a functional unit that performs a route search. Specifically, the route search unit 114 identifies the current location of the vehicle by using the information output from the vehicle speed sensor 7, the gyro sensor 8, and the GPS receiving device 9. Further, the route search unit 114 acquires information on the departure place and the destination from the input reception unit 112. In addition, the route search unit 114 searches for a recommended route (hereinafter, may be referred to as an "initial route") connecting the starting point (or the current location) and the destination by using a predetermined method such as Dijkstra's algorithm.

In addition, the route search unit 114 searches for a temporary route from the departure point to the destination via the tourist spot in response to the instruction from the detour guidance generation unit 115. Even if the route search unit 114 searches for a temporary route so that the point (intersection) where the temporary route turns left or right and the point (intersection) where the initial route turns left or right without passing through the tourist spot do not overlap. good.

The detour guidance generation unit 115 is a functional unit that executes a detour guidance generation process and generates detour guidance information. Specifically, the detour guidance generation unit 115 includes POI (Point Of Interest) including information for specifying the current location specified by the route search unit 114 (for example, location information for the current location) and location information for tourist spots. The acquisition request of the information 200 is periodically (for example, every 3 seconds) transmitted to the server device. The details of the POI information 200 will be described later.

The server device searches for tourist spots within a predetermined range from the current location of the vehicle from the database of the server device or the information published on the Internet in response to the acquisition request from the information display device 100. Further, when there are a plurality of tourist spots as the search result, the server device generates POI information 200 including a predetermined number (for example, 50) of tourist spots at the top of the search result, and uses this as the information display device 100. Send to. On the other hand, when there is no tourist spot as a search result, the server device generates information indicating that there is no tourist spot within a predetermined range from the current location, and transmits this to the information display device 100.

Information on tourist spots is not limited to the case of acquiring information via a server device. For example, the storage unit 102 of the information display device 100 may have information on tourist spots in advance, and the detour guide generation unit 115 may search the storage unit 102 for tourist spots within a predetermined range.

Further, the range within a predetermined range from the current location may be, for example, within a predetermined radius (for example, a radius of 1 km) from the current location of the vehicle, and may be within a predetermined range in the front direction of the vehicle toward the destination. good. Further, the predetermined range may be a range of a predetermined radius (for example, a radius of 100 m) from the starting point to the destination around the search route, that is, from each link constituting the searched route. Further, the predetermined range may be around the destination, that is, a range within a predetermined radius (for example, a radius of 500 m) from the destination.

When the detour guidance generation unit 115 acquires the POI information 200 of the tourist spot from the server device, it stores the POI information 200 in the storage unit 102. Further, when a predetermined condition is satisfied (for example, when there is a temporary route that turns at a predetermined number (for example, three) of intersections), the detour guidance generation unit 115 uses the POI information 200 to generate the detour guidance information. Generate.

In addition, the detour guidance generation unit 115 displays the detour guidance information on the display 2.

In addition, the detour guidance generation unit 115 determines whether or not the intersection guided by the detour guidance information has turned in the direction of the tourist spot, and if it determines that the intersection has turned, whether or not to set the tourist spot as a waypoint. Confirmation message is displayed. Further, the detour guidance generation unit 115 acquires temporary route information with the tourist spot as a waypoint from the route search unit 114 in response to a response from the user, and displays this on the display 2.

The storage unit 102 is a functional unit for storing various information. The storage unit 102 stores, for example, map information 121, POI information 200 acquired from the server device, and the like.

The map information 121 has link information related to roads on the map, area information for identifying an area on the map, and the like. Further, in the area information, for example, the link ID of the road and the link information of each mesh are associated and stored for each mesh ID that identifies the area on the map. In addition, the link information includes, for example, point coordinates of a start node and an end node indicating both ends of a road, road type information indicating a road type such as a national road, a toll road, and a prefectural road, and link length information indicating a road length. , Link width information indicating the width of the road, link orientation information indicating the direction of the road, travel time information indicating the time required to pass the road, and connecting to each of the start node and the end node of the road. The start connection link / end connection link information in which the link ID of the road is stored is stored.

FIG. 3 is a diagram showing an example of POI information 200. As shown in the figure, the POI information 200 has a predetermined number (for example, 50) of records in which the number 201, the popularity 202, the tourist spot name 203, and the location information 204 are associated with each other with respect to the tourist spot. doing.

The number 201 is information that uniquely identifies the searched tourist spot. The popularity level 202 is evaluation information indicating the degree of popularity of the tourist spot. The popularity degree 202 is a value evaluated based on a predetermined condition such as the number of accesses (number of searches) and the number of writes from users, and usually, the more popular tourist spots are listed at the top of the search results. The tourist spot name 203 is information for specifying the name of the tourist spot and the like. For example, when the tourist spot is a facility, the tourist spot name 203 is the facility name (for example, Sky Tree, Tokyo Tower, ** Museum, ** Aquarium, etc.). If the tourist spot is related to holding an event (for example, a fireworks display, cherry blossom viewing, an illumination event, etc.), the tourist spot name 203 is the event name (for example, ** fireworks display) or the event venue name. (** Illuminations) or search result headwords (for example, cherry blossoms in full bloom). The position information 204 is information for specifying the position of a tourist spot, such as point coordinates. Such POI information 200 is generated by the server device and is temporarily stored in the storage unit 102 (for example, from the acquisition of the POI information 200 to the time when the accessory key of the vehicle is turned off).

The communication unit 103 is a functional unit that transmits / receives information to / from an external device (for example, a server device). Specifically, the communication unit 103 transmits the position information indicating the current location of the vehicle, the acquisition request of the POI information 200, and the like to the server device. Further, the communication unit 103 acquires the POI information 200 from the server device.

The functional configuration of the information display device 100 has been described above.

The overall control unit 111, the input reception unit 112, the display information generation unit 113, the route search unit 114, and the detour guidance generation unit 115 of the information display device 100 are realized by a program that causes the CPU 21 to perform processing. Each of these programs is stored in the ROM 23 or the storage device 3 of the information display device 100, is loaded on the RAM 22 for execution, and is executed by the CPU 21. Further, the storage unit 102 is realized by the ROM 23, the RAM 22, the storage device 3, or a combination thereof. Further, the communication unit 103 is realized by the communication device 12.

Further, each functional block is classified according to the main processing contents in order to make it easy to understand the function of the information display device 100 realized in the present embodiment. Therefore, the present invention is not limited by the method of classifying each function and its name. Further, each configuration of the information display device 100 can be classified into more components according to the processing content. It can also be categorized so that one component performs more processing.

Further, all or a part of each functional unit may be constructed by hardware mounted on a computer (such as an integrated circuit such as an ASIC). Further, the processing of each functional unit may be executed by one hardware or may be executed by a plurality of hardware.

[Explanation of operation]
FIG. 4 is a flow chart showing an example of the flow of the detour guide generation process. The detour guidance generation process is started, for example, when the departure point and the destination are input by the user and the route search instruction is received. That is, the detour guidance generation process according to the present embodiment relates to the generation of detour guidance information in a state where the departure point and the destination are set.

When the process is started, the detour guidance generation unit 115 determines whether or not a tourist spot exists within a predetermined range from the current location (step S001). Specifically, the detour guidance generation unit 115 acquires the position information that identifies the current location of the vehicle from the route search unit 114, and transmits the acquisition request of the POI information 200 together with the position information to the server device via the communication unit 103. To do.

Further, when the detour guidance generation unit 115 acquires the POI information 200 from the server device, it determines that the tourist spot is within a predetermined range from the current location of the vehicle. On the other hand, when information indicating that there is no tourist spot within a predetermined range from the current location is acquired from the server device, the detour guidance generation unit 115 determines that there is no tourist spot within the predetermined range.

When it is determined that there is no tourist spot (No in step S001), the detour guidance generation unit 115 repeatedly executes the process of step S001. If it is determined that there are tourist spots (Yes in step S001), the detour guidance generation unit 115 lists the top n tourist spots (for example, n = 20) included in the POI information 200 (step S002). ).

Next, the route search unit 114 searches for a temporary route from the departure point to the destination via the tourist spot (step S003). Specifically, the route search unit 114 searches for a temporary route from the departure point to the destination via each of the tourist spots listed in step S002.

Next, the route search unit 114 calculates the time difference between the initial route and the temporary route (step S004). Specifically, the route search unit 114 calculates the travel time of the initial route connecting the departure point and the destination using the map information 121, VICS information, and the like. In addition, the route search unit 114 calculates the travel time of each temporary route with each tourist spot as a waypoint using map information 121, VICS information, and the like. Then, the route search unit 114 calculates the difference in the traveling time between each temporary route and the initial route.

Next, the detour guidance generation unit 115 determines whether or not there is a temporary route that turns a predetermined number of points (intersections) (step S005). Specifically, the detour guidance generation unit 115 specifies the vehicle position on the map based on the information for identifying the current location acquired from the route search unit 114. In addition, the detour guidance generation unit 115 determines whether or not there is a temporary route that turns at an intersection a predetermined number of destinations (for example, three destinations) from the current location. It should be noted that the reason why the intersection is set to a predetermined number of destinations is that the user's judgment time of whether or not to go through the tourist spot is taken into consideration from the display of the detour guidance information.

When there is a temporary route that turns a predetermined number of intersections (Yes in step S005), the detour guidance generation unit 115 determines whether or not there are a plurality of tourist spots at the turn (step S006). Specifically, when there are a plurality of temporary routes that turn at such an intersection, the detour guidance generation unit 115 determines that there are a plurality of tourist spots at the end of the intersection.

When it is determined that there are no plurality of tourist spots (No in step S006), the detour guidance generation unit 115 shifts the process to step S008. On the other hand, when it is determined that there are a plurality of tourist spots (Yes in step S006), the detour guide generation unit 115 identifies a more popular tourist spot from the POI information 200 among the plurality of tourist spots, and takes Identify a temporary route with the tourist spot as a stopover (step S007).

Note that the provisional route is not limited to the case where a more popular tourist spot is used as a reference. For example, the detour guidance generation unit 115 may specify a temporary route with the nearest tourist spot as a stopover after turning the intersection.

When the temporary route is specified, the detour guidance generation unit 115 shifts the process to step S008.

In step S008, the detour guidance generation unit 115 generates detour guidance information. FIG. 5 is a diagram showing an example of detour guidance information. The detour guidance information is drawn in the form of a general direction guidance sign (so-called blue sign). Specifically, the detour guidance information includes the destination 301 and the arrow 302 indicating the direction thereof, the name of the tourist spot 303 and the arrow 304 indicating the direction in which the tourist spot exists, and the intersection that turns in the direction in which the tourist spot exists. It has a distance of 305 and a travel time difference of 306 between the temporary route and the initial route.

In generating the detour guidance information, the detour guidance generation unit 115 specifies the direction from the current location to the destination by using the temporary route generated in step S003. In addition, the detour guidance generation unit 115 calculates the distance from the current location to the right / left turn point indicated by the temporary route, that is, the intersection that turns in the direction in which the tourist spot exists. Further, the detour guidance generation unit 115 acquires the travel time difference between the provisional route calculated in step S004 and the initial route. In addition, the detour guidance generation unit 115 generates detour guidance information including such information. In addition to the distance to the intersection that turns in the direction in which the tourist spot exists, the detour guidance generation unit 115 identifies information indicating how many intersections the intersection is from the current location, and uses this as the detour guidance information. It may be included.

It will be described back to FIG. The detour guidance generation unit 115 displays the detour guidance information on the display 2 (step S009), and returns the process to step S001.

FIG. 6 is a diagram showing an example of detour guidance information displayed on the display 2. The detour guidance generation unit 115 superimposes and displays the detour guidance information at a predetermined position on the map. The detour guidance generation unit 115 may display the detour guidance information on the map at a predetermined transmittance so that the map can be seen transparently.

It will be described back to FIG. If it is determined in step S005 described above that there is no temporary route that turns at an intersection several points ahead (No in step S005), whether or not the detour guidance generation unit 115 has completed the guidance by arriving near the destination. Is determined (step S010). When it is determined that the guidance has been completed (Yes in step S010), the detour guidance generation unit 115 ends the processing of this flow. On the other hand, if it is determined that the guidance has not been completed (No in step S010), the detour guidance generation unit 115 returns the process to step S005.

The detour guidance generation process has been described above.

Next, the waypoint setting process will be described. FIG. 7 is a flow chart showing an example of the flow of the waypoint setting process. The waypoint setting process is started when the detour guidance information is displayed (step S009 in FIG. 4).

When the waypoint setting process is started, the detour guidance generation unit 115 determines whether or not the vehicle has turned in the direction of the tourist spot at the intersection guided by the detour guidance information (step S021). Specifically, the detour guidance generation unit 115 uses the information output from the vehicle speed sensor 7, the gyro sensor 8, and the GPS receiver 9 to guide the intersection guided by the detour guidance information by the vehicle with the detour guidance information. Determine if the vehicle is bent in the direction of the spot.

If it is determined that the vehicle has turned the intersection in the direction of the tourist spot (Yes in step S021), the detour guide generator 115 exists in the turned direction and sets the tourist spot guided by the detour guide information as a stopover. A message confirming whether or not to use the user is displayed (step S022), and the user's response is accepted.

FIG. 8 is a diagram showing an example of a pop-up window 400 including a confirmation message. For example, the pop-up window 400 displays a confirmation message 401 such as "Do you want to set Skytree as a stopover?" And a "Yes" and "No" selection button 402 for response.

When the detour guidance generation unit 115 performs the process of step S022, the detour guidance generation unit 115 ends the display of the detour guidance information via the display information generation unit 113.

It will be described back to FIG. The detour guidance generation unit 115 determines whether or not to set the tourist spot guided by the detour guidance information as a stopover (step S023). Specifically, when the detour guidance generation unit 115 receives the input of "yes" from the user via the input device 5, it determines that the tourist spot guided by the detour guidance information is set as the waypoint (Yes in step S023). ), The process proceeds to step S024. On the other hand, when the input of "No" is accepted, the detour guidance generation unit 115 determines that the tourist spot guided by the detour guidance information is not set as a stopover (No in step S023), and shifts the process to step S027. ..

In step S024, the detour guidance generation unit 115 displays the route via the tourist spot set as the waypoint. Specifically, the detour guidance generation unit 115 acquires a temporary route with the tourist spot guided by the detour guidance information as a waypoint from the route search unit 114, and displays this on the display 2 via the display information generation unit 113. indicate.

Further, the detour guidance generation unit 115 transmits information about the tourist spot set as the waypoint (for example, the tourist spot name and coordinate information) to the server device (step S025), and ends the process of this flow.

When the server device acquires information about a tourist spot set as a stopover from the information display device 100, it reflects the popularity of the tourist spot (for example, a predetermined point is set so that the popularity of the tourist spot increases). to add).

Further, in the process of step S021, when it is determined that the vehicle does not turn the intersection in the direction of the tourist spot guided by the detour guidance information (No in step S021), the detour guidance generation unit 115 determines that the vehicle is on the guidance route, that is, initially. It is determined whether or not the vehicle is on the route (step S026).

When it is determined that the vehicle is on the guidance route (Yes in step S026), the detour guidance generation unit 115 returns the process to step S021. On the other hand, when it is determined that the vehicle is not on the guidance route (No in step S026), the detour guidance generation unit 115 shifts the process to step 027.

In step S027, the detour guidance generation unit 115 executes reroute via the route search unit 114, and searches for a new route starting from the current location. This is because if the vehicle turns at an intersection guided by the detour guidance information in a direction different from the direction of the tourist spot and the vehicle is not on the guidance route, it is judged that the vehicle has deviated from the guidance route to the destination. ..

Further, when the detour guidance generation unit 115 reroutes via the route search unit 114, the process returns to step S021.

The waypoint setting process has been described above.

According to such an information display device 100, it is possible to notify a traveling user of the existence of a tourist spot and display a search route via the tourist spot with a simpler operation. In particular, since the information display device 100 displays a guide indicating the direction of a tourist spot in the vicinity, even if the user does not know the existence of the tourist spot, he / she notices the existence of the tourist spot and turns in the direction of the tourist spot. You can know the points (intersections) such as.

Further, when the vehicle turns in the direction of the guided tourist spot, the information display device 100 displays a message asking the user whether or not to set the tourist spot as a stopover, and responds to the response. Display the search route via the tourist spot. As a result, the user can confirm the route from the starting point to the destination via the tourist spot by performing a very simple operation (for example, selecting “yes” or “no”).

<Second embodiment>
Next, the second embodiment of the present invention will be described. In the first embodiment described above, the detour guidance generation process is executed in a state where the starting point and the destination are set in advance and the guidance route is searched. The information display device 100 according to the second embodiment executes the detour guidance generation process in a state where the departure point and the destination are not set. Since the basic configuration of the information display device 100 according to the second embodiment is the same as that of the first embodiment, the description thereof will be omitted.

9 and 10 are flow charts showing an example of the flow of the detour guide generation process according to the present embodiment. The detour guidance generation process is started, for example, when the information display device 100 is activated. That is, the detour guidance generation process according to the present embodiment relates to the generation of detour guidance information in a state where the departure point and the destination are not set.

When the process is started, the detour guidance generation unit 115 determines whether or not there is a tourist spot within a predetermined range from the current location (step S031), and if there is a tourist spot (Yes in step S031), a predetermined number. List the tourist spots in (Step S032). Since these processes are the same as those in step S001 and step S002, detailed description thereof will be omitted.

After listing a predetermined number of tourist spots, the detour guidance generation unit 115 determines whether or not the destination of the vehicle is the user's home (step S033). For example, the detour guidance generation unit 115 acquires the home location information registered by the user. In addition, the detour guidance generation unit 115 specifies the direction in which the vehicle is heading (vehicle orientation) using the information output from the vehicle speed sensor 7, the gyro sensor 8, and the GPS receiving device 9. Then, when the direction of the vehicle is toward the home, the detour guidance generation unit 115 determines that the destination of the vehicle is the home. The detour guidance generation unit 115 may make a determination in consideration of a time zone (for example, a time zone for returning home such as in the evening) in addition to the direction in which the vehicle is heading.

When it is determined that the destination of the vehicle is not home (No in step S033), the detour guidance generation unit 115 shifts the process to step S051 (shown in FIG. 10). On the other hand, when it is determined that the destination of the vehicle is home (Yes in step S033), the detour guidance generation unit 115 shifts the process to step S034.

In step S034, the route search unit 114 searches for a direct route from the current location to the home and a temporary route from the current location to the home via the tourist spot. Specifically, the route search unit 114 identifies the current location of the vehicle, the home position, and the location of the tourist spots listed in step S032, and the direct route from the current location to the home and each tourist spot. , Search for a temporary route from your current location to your home via a tourist spot.

Further, the route search unit 114 calculates the time difference between the direct route and the temporary route (step S035). Specifically, the route search unit 114 calculates the travel time of the direct route and the provisional route and the travel time difference between the two routes by using the map information 121 and the VICS information.

Next, the detour guidance generation unit 115 determines whether or not there is a temporary route that turns at a predetermined number of intersections (step S036), and if it determines that there is a temporary route (Yes in step S036), the turn destination. It is determined whether or not there are a plurality of tourist spots in (step S037).

If it is determined that there are a plurality of tourist spots (Yes in step S037), the detour guidance generation unit 115 identifies a temporary route using a more popular tourist spot as a waypoint (step S038), and provides detour guidance. Generate and display information (step S039, step S040).

Further, when it is determined in step S060 that there is no temporary route to turn at the intersection several points ahead (No in step S030), the detour guidance generation unit 115 determines whether or not the guidance has been completed by arriving near the home. Determine (step S041). Then, when it is determined that the guidance has been completed (Yes in step S041), the detour guidance generation unit 115 has completed the processing of this flow and has determined that the guidance has not been completed (No in step S041). , The process returns to step S036.

Since the processes of steps S036 to S041 are the same as those of steps S005 to S010 according to the first embodiment, detailed description thereof will be omitted.

Further, in the process of step S033, when it is determined that the destination is not the home (No in step S033), the route search unit 114 searches for a temporary route from the current location to each tourist spot as the destination (step in FIG. 10). S051). Specifically, the route search unit 114 searches for a temporary route from the current location to each tourist spot listed in step S032.

Further, the detour guidance generation unit 115 determines whether or not there is a temporary route that turns at a predetermined number of intersections (step S052), and if it determines that there is a temporary route (Yes in step S052), the detour guidance generation unit 115 is at the end of the turn. It is determined whether or not there are a plurality of tourist spots (step S053).

If it is determined that there are a plurality of tourist spots (Yes in step S053), the detour guidance generation unit 115 identifies a temporary route targeting a more popular tourist spot (step S054) and provides detour guidance. Generate and display information (step S055, step S056). The temporary route may be specified, for example, by the detour guide generation unit 115, which may specify the temporary route with the nearest tourist spot as a waypoint after turning the intersection.

FIG. 11 is a diagram showing an example of detour guidance information generated when a temporary route with a tourist spot as a destination is searched from the current location instead of the destination at home (step S051). As shown in the figure, the detour guidance information turns in the direction in which the tourist spot exists, the arrow 501 indicating the direction along the road, the name 502 of the tourist spot as the destination, and the arrow 503 indicating the direction in which the tourist spot exists. It has a distance of 504 to the intersection.

It will be described back to FIG. When the detour guidance generation unit 115 displays the detour guidance information, the detour guidance generation unit 115 ends this flow and returns the process to step S031 in FIG.

Since the processing of steps S052 to S056 is the same as that of steps S036 to S040 according to the second embodiment, detailed description thereof will be omitted.

The detour guide generation process according to the second embodiment has been described above.

Next, the waypoint setting process according to the second embodiment will be described. The waypoint setting process of this embodiment performs the processes of steps S021 to S027 of FIG. 7, but since a part of the processes of step S026 is different from that of the first embodiment, it will be described below. Since the other processes are the same as those described above, detailed description thereof will be omitted.

The waypoint setting process when the destination is determined to be home (Yes in step S033) will be described. In step S021, if it is determined that the intersection guided by the detour guidance information is not turned in the direction of the tourist spot (No in step S021), as a process different from the process in the first embodiment, the detour guidance generation unit 115 uses the vehicle. Is on the guidance route or on the link along the road (step S026). For example, when the route search of the direct route is performed with the home as the destination (step S034), the detour guidance generation unit 115 determines whether or not the current location is on the direct route.

When it is determined that the destination is not your home (No in step S033), that is, a stopover setting is performed after searching for a temporary route from the current location with each tourist spot as the destination and displaying detour guidance information for those tourist spots. The processing will be described. In step S021, when it is determined that the intersection guided by the detour guidance information is not turned in the direction of the tourist spot (No in step S021), the detour guidance generation unit 115 determines the road (link) to which the current location belongs at the time of the determination in step S026. ) Is specified from the map information 121. Further, the detour guidance generation unit 115 identifies the road (link) to which the current location belongs at the time of searching the temporary route (step S051) from the map information 121. Then, the detour guidance generation unit 115 determines whether or not the link to which the current location at the time of step S026 belongs is the link to which the current location belongs at the time of step S051 and the link along the road.

Further, in step S021, when it is determined that the intersection guided by the detour guidance information is turned in the direction of the tourist spot (Yes in step S021), the detour guidance generation unit 115 uses the tourist spot as a destination instead of a stopover. A message confirming whether or not to set is displayed (step S022). Similarly, in steps S023 to S025, the detour guidance generation unit 115 determines whether or not to set the tourist spot guided by the detour guidance information as the destination instead of the waypoint (step S023). Further, the detour guide generation unit 115 does not use the route via the tourist spot guided by the detour guide information, but the destination route, that is, the tourist spot guided by the detour guide information searched in step S051. The temporary route is displayed (step S024). Further, the detour guidance generation unit 115 transmits information about the tourist spot set as the destination to the server device instead of the waypoint (step S025).

The waypoint setting process according to the second embodiment has been described above.

According to such an information display device 100, it is possible to notify the user heading to his / her home of the existence of the tourist spot and display the search route via the tourist spot with a simpler operation. Further, even when driving without determining a destination, information indicating the existence of a tourist spot within a predetermined range and its direction is provided to the user. Further, the user can confirm the route to the tourist spot with a simple operation.

The present invention is not limited to the first embodiment and the second embodiment, and various modifications are possible. FIG. 12A is a diagram showing an example of detour guidance information according to the modified example. For example, in the process of step S009, the detour guidance generation unit 115 displays the tourist spots included in the detour guidance information in a selectable manner. That is, in FIG. 12A, tourist spot names 601 such as "Sakura full bloom course" and "Skytree course" are displayed so as to be selectable by the user.

Further, when any of the tourist spots is selected by the user (when selected via the input device 5 such as the touch panel 51), the detour guidance generation unit 115 sets the selected tourist spot as the destination or waypoint. Display a message asking the user whether to set. FIG. 12B is a diagram showing an example of a message 602 to be confirmed by the user.

When the user selects either the destination 603 or the waypoint 604 via the input device 5, the detour guidance generation unit 115 searches for the tourist spot as the destination 603 or the waypoint 604 via the route search unit 114. I do.

According to the information display device 100 according to such a modification, the user can set a tourist spot as a waypoint or a destination with a simpler operation.

The present invention is not limited to the above-described embodiment, and includes various other embodiments and modifications. For example, the above-described embodiment has been described in detail in order to explain the present invention in an easy-to-understand manner, and is not necessarily limited to the one including all the described configurations. Further, it is possible to replace a part of the configuration of a certain embodiment with the configuration of another embodiment or a modification, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. Further, it is possible to add / delete / replace a part of the configuration of each embodiment with another configuration.

In addition, each of the above configurations, functions, processing units, processing means, and the like may be realized in part or all of them by a program in which the processor realizes each function. Information such as programs, tables, and files that realize each function can be stored in a memory, a hard disk, a storage device 3 such as an SSD (Solid State Drive), or a recording medium such as an IC card, an SD (Secure Digital) memory card, or a DVD. Can be placed in. Note that the control lines and information lines are those that are considered necessary for explanation, and not all control lines and information lines are necessarily shown in the product.

100 ... Information display device, 1 ... Arithmetic processing device, 2 ... Display,
3 ... Storage device, 4 ... Voice input / output device, 41 ... Microphone,
42 ... Speaker, 5 ... Input device, 51 ... Touch panel,
52 ... Dial switch, 6 ... ROM device, 7 ... Vehicle speed sensor,
8 ... Gyro sensor, 9 ... GPS receiver, 10 ... FM multiplex broadcast receiver,
11 ... Beacon receiving device, 12 ... Communication device, 101 ... Calculation unit,
102 ... storage unit, 103 ... communication unit, 111 ... overall control unit,
112 ... Input reception unit, 113 ... Display information generation unit, 114 ... Route search unit,
115 ... Detour guidance generator, 121 ... Map information, 200 ... POI information

Claims (8)

A route search unit that searches for a route to the destination via a stopover,
A tourist spot within a predetermined range of the route is searched, and detour guidance information including information indicating the direction of the destination, a point turning in the direction of the tourist spot, and information indicating the direction of the tourist spot is obtained. It is equipped with a detour guidance generation unit that generates and displays the direction of the tourist spot in the form of a direction guidance display sign indicating the destination direction .
The detour guidance generation unit
If the point has been previously guided by the detour guidance information vehicle is bent in the direction of the attractions, information, characterized in you to view a message confirming whether to set the waypoint the sights Display device. The information display device according to claim 1.
The route search unit
The difference between the travel time of the initial route to the destination and the travel time of the temporary route to the destination via the tourist spot is calculated.
The detour guidance generation unit
An information display device characterized in that the difference in traveling time is included in the direction guidance display sign and displayed. The information display device according to claim 1.
The detour guidance generation unit
An information display device characterized in that the detour guidance information is superimposed and displayed on a map. The information display device according to claim 3 .
An input reception unit that accepts responses to the message,
An information display device further comprising a display information generation unit that displays the route to the destination via the tourist spot according to the content of the response. The information display device according to claim 1.
The detour guidance generation unit
The name of the tourist spot is displayed in the detour guidance information so that it can be selected.
An information display device including a display information generation unit that displays a route to a destination via the selected tourist spot when the name of the tourist spot is selected. A route search unit that searches for a route from your current location to a tourist spot within a predetermined range,
A detour that generates detour guidance information including information indicating the direction of the tourist spot and a point that turns in the direction of the tourist spot on the route, and displays the direction of the tourist spot in the form of a direction guide display sign indicating the destination direction. Equipped with a guide generator
The detour guidance generation unit
If it is determined whether the direction of the vehicle is toward the home, the destination is not set, and the direction of the vehicle is not the direction of the home, the road together with the direction of the tourist spot that satisfies the predetermined conditions. Information indicating the direction of the vehicle is displayed as the detour guidance information ,
When the vehicle turns in the direction of the tourist spot at the point previously guided by the detour guidance information, a message confirming whether or not to set the tourist spot as the destination is displayed. Information display device. The information display device according to claim 6 .
An input reception unit that receives a response from the user to the message,
An information display device further comprising a display information generation unit that displays the route from the current location to the tourist spot according to the content of the response. This is the information display method used by the information display device.
The information display device is
Steps to find a route to your destination via a stopover,
A tourist spot within a predetermined range of the route is searched, and detour guidance information including information indicating the direction of the destination, a point turning in the direction of the tourist spot, and information indicating the direction of the tourist spot is obtained. A step of displaying the direction of the tourist spot in the form of a direction guide display sign that is generated and indicates the destination direction, and
When the vehicle turns in the direction of the tourist spot at the point previously guided by the detour guidance information, a step of displaying a message confirming whether or not to set the tourist spot as a stopover is performed. Characteristic information display method.

Images