JP7381821B2 - Electronic devices, information provision methods, and information provision programs - Google Patents

Description

The present invention relates to an electronic device with a navigation function, and particularly to information guidance according to road information.

An in-vehicle navigation device detects a current location, draws road map data around the current location on a display, and displays a vehicle mark superimposed on the map. Additionally, when the current location changes, the map is scrolled accordingly and the road map is guided. This allows you to see at a glance where the vehicle is currently traveling.

In addition, various improvements have been made to the method of drawing road map data, and the navigation device described in Patent Document 1 automatically outputs guidance information according to the road type and travel speed at the current location while moving. It describes how to change it. For example, if you are driving on an expressway, you can display interchanges (highway entrances/exits), service areas, parking areas, junctions (highway branches), toll booths, etc. arranged in order of proximity to your current location, or When driving on a road, a detailed map is displayed.

Japanese Patent Application Publication No. 2001-074488

Conventional navigation devices perform map matching as described above and change the guidance information provided depending on the road information at the current location. However, providing information corresponding to road information at the current location is not always beneficial to the user.

This will be explained using the diagram of FIG. 1, which schematically shows a connection state from an expressway to a general road, as an example. The current positions V1 to V3 in FIG. 1 indicate the transition situation in which the vehicle moves from the expressway to the ramp road and then to the general road. It shows the transition situation of moving to the road.

The current position V1 represents that the vehicle is traveling on an expressway, and since the road type at the current position V1 is an expressway, information regarding the expressway is output on the screen. Next, the current position V2 indicates that the vehicle is traveling on a ramp road. Here, since the ramp road at the current position V2 is registered as an expressway as the road type, information regarding the expressway will be output. The current position V3 indicates that the vehicle is traveling on a general road, and since the road type at the current position V3 is a general road, information regarding the general road is output.

As mentioned above, if the vehicle is present at the current position V2, information regarding the expressway will continue to be output even though the user is about to leave the expressway. It is not possible to know information about the general roads after leaving the area. Then, after exiting the expressway and completing map matching, information regarding general roads will be output. In this way, if the content of the guidance information to be output is determined only by map matching based on the current location, it will not be possible to provide sufficient information that will be needed in the future, resulting in a delay in providing information to the user. Put it away.

The present invention solves such conventional problems, and provides an electronic device, an information providing method, and an information providing program that can determine and provide guidance information that needs to be output at the current location based on the driving situation. With the goal.

An electronic device according to the present invention is an electronic device that guides a traveling route of a moving object from its current position to a destination, and includes a detection means for detecting a road on which the moving object is scheduled to travel; an acquisition means for acquiring road information of the road on which the current position of the body exists and the road on which the body is scheduled to travel detected by the detection means; and an output means for outputting guidance information corresponding to the road information of the current position acquired by the acquisition means. a determining means for determining whether or not guidance information regarding the road to be traveled is to be outputted preferentially to the outputting means based on the road information; and output control means for controlling guidance information.

In one embodiment, the road information includes a road type and a link type of the road, and the output means outputs guidance information corresponding to the road type. In one embodiment, when the road type at the current position and the road type on the scheduled driving road are different, the determining means determines that the information regarding the planned driving road is guidance information to be output preferentially, and controls the output control. The means causes the output means to output guidance information of the planned road to be traveled before entering the planned road. In one embodiment, the determination means provides guidance for preferentially outputting information regarding the planned road when the road type and link type at the current location are different from the road type and link type on the planned road. information, and the output control means causes the output means to output guidance information corresponding to the road information of the planned travel road before entering the planned travel road. In one embodiment, the road type includes information on general roads and expressways, and the link type includes information on main roads and ramp roads. In one embodiment, the guidance information includes information regarding general roads and information regarding expressways.

In one embodiment, when the road type of the road at the current location is an expressway and the link type is a ramp road, and the road type of the road to be traveled is a general road and the link type is a main road, the determination means determines whether the road at the current location is a general road. The output control means causes the output means to output the guidance information regarding the general road before entering the planned road. In one embodiment, when the road type of the road at the current location is an expressway and the link type is a ramp road, and the road type of the road to be traveled is an expressway and the link type is a main road, the determining means determines whether the road at the current position is an expressway or a link type is a main road. The output control means causes the output means to continue outputting the guidance information regarding the expressway by the output means. In one embodiment, the acquisition means acquires the road information on the immediately preceding road existing immediately before the road on which the current position of the mobile object has traveled, and the determination means determines the road information on the immediately preceding road from the immediately preceding road. Based on the transition state of the road type and the link type leading to the road, it is determined whether guidance information regarding the road to be traveled is to be preferentially outputted to the output means. In one embodiment, the determination means provides guidance for preferentially outputting information regarding a general road when the mobile object is in the transition state after traveling on a ramp road of an expressway and exiting to a general road based on the acquired road information. information, and the output control means causes the output means to output guidance information regarding a general road before entering the planned road. In one embodiment, the determination means provides guidance for preferentially outputting information regarding the expressway when the mobile object is in the transition state after traveling on a ramp road of the expressway and exiting the expressway based on the acquired road information. information, and the output control means causes the output means to continue outputting the guidance information regarding the expressway.

In one embodiment, the output means includes a display means for displaying the guidance information on a screen, and the output control means is further capable of displaying a plurality of images of different guidance information on the display means, Guide information to be output preferentially determined by the means is displayed on the display means in a manner different from other guide information. In one embodiment, the output control means is further capable of controlling an image area of a plurality of pieces of guidance information to be displayed on the display means, and sets the guidance information determined by the determination means to be output preferentially to other guidance information. The information is displayed larger than the information on the display means. In one embodiment, when there is a plurality of guidance information to be output, the output means calculates the priority of each of the guidance information and outputs the guidance information based on the priority, and controls the output. The means changes the priority based on the determination result of the determination means and outputs the guidance information based on the changed priority.

An information providing method according to the present invention is an information providing method in an electronic device that outputs guidance information from a current location of a moving object to a destination via an output means, the method comprising: a travel schedule in which the moving object is scheduled to travel; a step of detecting a road; a step of obtaining road information of the road on which the current position of the mobile object exists and the detected road on which the mobile object is scheduled to travel; and outputting guidance information corresponding to the obtained road information of the current position. a step of determining, based on the road information, whether or not guidance information regarding the road to be traveled is to be outputted to the output means with priority; and a step of determining, based on the determination result of the determining step, and a step of controlling guidance information to be outputted by the output means.

The information providing program according to the present invention is an information providing program in an electronic device that outputs guidance information from the current position of a moving object to a destination via an output means, and includes a travel schedule in which the moving object is scheduled to travel. a step of detecting a road; a step of obtaining road information of the road on which the current position of the mobile object exists and the detected road on which the mobile object is scheduled to travel; and outputting guidance information corresponding to the obtained road information of the current position. a step of determining, based on the road information, whether or not guidance information regarding the road to be traveled is to be outputted to the output means with priority; and a step of determining, based on the determination result of the determining step, and a step of controlling guidance information to be outputted by the output means.

According to the present invention, since the information to be output is controlled in consideration of the road on which the vehicle is scheduled to travel, necessary information can be provided without delay.

FIG. 2 is a diagram schematically showing a connection state from an expressway to a general road. FIG. 1 is a block diagram showing the configuration of an on-vehicle device according to an embodiment of the present invention. FIG. 3 is a diagram for explaining the data structure of road map data. FIG. 2 is a diagram showing a functional configuration of a display control program according to an embodiment of the present invention. FIG. 3 is a diagram showing determination conditions according to an embodiment of the present invention. FIG. 3 is a diagram showing a flow of display control operation of the in-vehicle device according to the embodiment of the present invention. FIG. 3 is a diagram schematically showing a road running state in this embodiment. FIG. 2 is a diagram showing an example of guidance information for general roads and an example of guidance information for expressways in the present embodiment. FIG. 6 is a diagram illustrating an example in which guidance information is displayed in a superimposed manner on a screen in this embodiment. FIG. 6 is a diagram illustrating an example of controlling and displaying a plurality of guide information display areas in the present embodiment. FIG. 7 is a diagram illustrating an example of displaying guidance information by controlling a split screen in this embodiment. FIG. 3 is a diagram showing priorities for each piece of guidance information in this embodiment.

Next, embodiments of the present invention will be described in detail with reference to the drawings. The electronic device according to the embodiment of the present invention is an in-vehicle device such as a navigation device that is fixedly mounted on a moving object such as a car, a portable computer device that can be carried around, or a tablet computer device. Can be done. In addition to these, the electronic device may also be integrally equipped with, for example, a function of reproducing audio/video data, a function of receiving television/radio broadcasting, a function of executing application software, and the like.

The electronic device of the present invention has a navigation function, and uses road map data to perform the navigation function. This map information may use road map data stored in a storage medium such as a DVD-ROM, or the necessary road map data may be obtained from a distribution site or distribution server via a data communication means. It may be something. In the following description, a navigation device mounted on a vehicle will be exemplified as an example of an electronic device.

FIG. 2 is a block diagram showing the configuration of an in-vehicle device according to an embodiment of the present invention. The in-vehicle device 100 includes an input section 110, a current position detection section 120, a navigation section 130, a display section 140, an audio output section 150, a communication section 160, a storage section 170, and a control section 180. However, the configuration shown here is an example, and the in-vehicle device 100 may include other functions.

The input unit 110 allows the user to input various information to the in-vehicle device. The input unit 110 receives instructions from a user using, for example, an input key device, a voice input recognition device, a touch panel, etc., and provides the instructions to the control unit 180. The user can input menu selection operations, map scrolling, destination settings, route search instructions, etc. via the input unit 110.

The current position detection unit 120 measures the current position of the vehicle. The current position detection unit 120 detects the current position by, for example, absolute position detection based on GPS positioning or relative position detection based on an autonomous navigation sensor. The autonomous navigation sensor includes, for example, a direction sensor such as an angular velocity sensor or a geomagnetic sensor, or a vehicle speed sensor such as a vehicle speed pulse sensor. Note that the current position detection unit 120 may obtain the current position information by accessing a position information distribution site or a distribution server via a network. Communication with the network at that time is performed via the communication unit 160. Furthermore, the detected current position is map matched to road map data.

For example, the navigation unit 130 searches for a route from the current position calculated by the current position detection unit 120 to the destination by referring to road map data, displays the searched route on the display unit 140, or provides route guidance. The audio is outputted from the audio output unit 150.

Furthermore, the navigation unit 130 changes the format of the information to be output depending on the road type. For example, if you are driving on a road whose road type is a general road, for example, images that are displayed in a display format that makes it easy to understand the surroundings of your current location and the surroundings of your driving route, such as detailed maps or wide-area maps, or intersection guidance. Images related to general roads such as maps, narrow street guide maps, and guide route major intersection guide maps are displayed, and the navigation unit 130 provides route guidance in conjunction with the above images. In addition, if you are driving on an expressway road type, you can arrange interchanges (highway entrances/exits), service areas, parking areas, junctions (highway branching), toll booths, etc. in order of proximity to your current location. An image related to the expressway, such as an expressway route guide image (expressway schematic diagram) that simply represents the situation of the expressway, is displayed, and the navigation unit 130 provides route guidance in conjunction with the above image.

The display unit 140 includes a display device such as a liquid crystal display or an organic EL display, and displays, for example, a road map generated by the navigation unit 130 or guidance information according to the type of road at the current location. In addition, when outputting guidance information regarding general roads, for example, detailed maps or wide-area maps that make it easy to understand the situation around the current location, intersection guide maps, narrow street maps, major intersection guide maps on the guidance route, etc. is displayed. Further, when outputting guide information regarding expressways, for example, expressway schematic maps, junction guide maps, expressway network guide maps, interchange guide maps, wide area maps, etc. are displayed. The audio output unit 150 outputs audio guidance regarding the content displayed by the display unit 140, audio guidance from the navigation unit 130, and the like.

Communication unit 160 enables data communication with external devices. The communication unit 160 enables wired or wireless data transmission and reception with external devices, external networks, and the like. The communication unit 130 may, for example, be one in which the navigation device 100 itself has a built-in communication function, or it may be one that connects a terminal having such a communication function to the navigation device 100. The communication unit 130 can access a distribution site (or distribution server) and obtain detailed information regarding current position information, road map data, etc. via the network. Further, road map data distributed from a road map data distribution site can be stored in the storage unit 170 and used by the navigation unit 130.

The storage unit 170 can store road map data and other data required by the navigation unit 130. Furthermore, the storage unit 170 can store application software, programs, etc. executed by the control unit 180.

Here, the contents of the stored road map data will be explained using FIG. 3. FIG. 3 is a diagram for explaining the data structure of road map data. The road map data includes link data 172 regarding roads (links) and node data 174 regarding nodes such as intersections.

The link data 172 includes a link ID for detecting a link, a road type of the link (for example, a general road, a toll road, an expressway, a national highway, a prefectural road, a city road, etc.), a link type of the link (for example, a main road, a ramp road, etc.). ), a first node number that represents the node number of the first node that is the node that is one end point of the corresponding link, a second node number that represents the node number of the second node that is the node that is the other end point of the corresponding link, etc. including. In addition to the above, the link data 172 can also include the number of lanes of the road, its width, the distance of the link, and the like.

The node data 174 includes a node ID for detecting a node, position coordinates of the node, an entry link ID for entering the node, an escape link ID for escaping from the node, intersection information regarding an intersection, and the like. Note that, in addition to the above, the node data 174 can include information such as the number and connection direction of ingress links and egress links connected to the node.

Next, the control unit 180 includes a microcontroller or a microprocessor equipped with a ROM/RAM, etc., and executes predetermined processing based on a control program stored in the ROM and RAM to operate each part of the in-vehicle device 100. control. The control program according to this embodiment includes a guidance control program 200.

The control unit 180 executes the guidance control program 200. FIG. 4 is a diagram showing the functional configuration of the guidance control program 200 according to the embodiment of the present invention. The guidance control program 200 includes a travel path detection section 202, a road information acquisition section 204, a condition determination section 206, and an output control section 208.

First, the driving route detection unit 202 detects a road for which road information needs to be acquired. Note that the roads mentioned here refer to road sections with different road types and/or link types. In this embodiment, the roads on which road information needs to be acquired include the road section on which the vehicle is currently traveling, the planned road section on which the vehicle is scheduled to travel in the future, and the road section on which the vehicle is currently traveling. Three road sections are detected, including the immediately preceding road section (hereinafter referred to as the immediately preceding road section) that is one road section before the current location.

First, as a method for detecting the road section on which the vehicle is traveling, it is possible to use, for example, a conventional map matching method. Next, as a method for detecting the road section on which the vehicle is scheduled to travel, for example, if a route has been generated by destination setting, the road on which the vehicle is scheduled to travel is detected based on the route. Note that if a route has not been set, in some embodiments, the road on which the vehicle will travel may be estimated from the current location, traveling direction, and speed information of the vehicle. Next, as a method for detecting the roads on which the vehicle has traveled, for example, the roads on which the vehicle has passed are detected from the route information or trajectory information of the vehicle. Moreover, a road section is a road for each link ID.

The road information acquisition unit 204 acquires road information of a road. In this embodiment, road information on the road section on which the vehicle is traveling, the road section on which the vehicle is scheduled to travel, and the immediately preceding road section is acquired. Furthermore, the road information that needs to be acquired in this embodiment is at least the road type and link type.

The condition determining unit 206 determines whether guidance information regarding the road scheduled for travel should be output preferentially. In this embodiment, the determination is made based on whether the transition state of the road information of the road detected by the driving route detection unit 202 satisfies a predetermined condition. FIG. 5 is a diagram showing determination conditions according to the embodiment of the present invention.

The transition state of the road information under the determination conditions shown in FIG. 5 indicates that a vehicle traveling on an expressway exits onto a general road. In this embodiment, the condition determination unit 206 determines whether the determination conditions shown in FIG. 5 are satisfied from the road information of each road section. In some embodiments, only the road information of the road section on which the vehicle is traveling and the road section to be traveled may be set as the determination condition, without considering the immediately preceding road section.

The output control unit 208 controls the guidance information to be output based on the determination result by the condition determination unit 206. Further, if it is determined that the guidance information regarding the road to be traveled is the information that should be output preferentially based on the determination result, the guidance information regarding the road to be traveled is displayed on the display unit 140 before the vehicle enters the road to be traveled. or output via the audio output unit 150. Here, the timing for outputting the guidance information regarding the planned road can be any time before the vehicle enters the planned road, and can be modified depending on the embodiment.

Here, the data output from the display section 140 and the audio output section 150 do not necessarily need to be linked. For example, when driving on an expressway, if it is determined based on the determination result that guidance information regarding general roads should be output in advance, the display unit 140 displays an image regarding the general road, and the audio output unit 150 displays information regarding the general road currently being traveled. Audio guidance regarding expressways may also be provided. Similarly, the display unit 140 may display images related to the expressway on which the vehicle is currently traveling, and the audio output unit 150 may provide audio guidance regarding general roads.

Next, the guidance information output control operation of the in-vehicle device of this embodiment will be explained with reference to the flow shown in FIG. Further, in explaining the flowchart, the explanation will be made with reference to a diagram schematically showing the running state in this embodiment of FIG. 7. Note that the connection state between general roads and expressways is the same as in FIG. 1. Further, as shown in FIG. 7(a), it is assumed that the current position of the vehicle is on a ramp road and that the vehicle is moving along the illustrated guide route.

First, the current position of the vehicle is detected by the current position detection unit 120 (S102). Note that the driving route detection unit 202 may detect the immediately preceding road section and the road section scheduled to be traveled at this point, or may be detected at the timing when road information for each of the immediately preceding road section and the scheduled road section is required. It can be anything.

Then, the road information acquisition unit 204 acquires road information on the road section on which the vehicle is traveling (S104). FIG. 7(b) shows an actual road as links R1 to R6 and nodes N1 to N4. The connection relationships between links R1 to R6 and nodes N1 to N4 can be obtained from the road map data shown in FIG. In this embodiment, since the current position is located at link R3, road information for link R3 is acquired. That is, in this embodiment, when road information for link R3 is acquired, information on an expressway is acquired as the road type, and information on a ramp road is acquired as the link type.

Next, the condition determining unit 208 first determines whether the road type at the current location is an expressway (S106). If the road type is not an expressway, then it is determined whether the road type is a general road (S108). In the present invention, if the road type is neither an expressway nor a general road, the process ends. Depending on the embodiment, the process may return to S102 and map matching based on the current position may be performed again. In S108, if the road type is a general road, the determination condition by the condition determination unit 208 is not satisfied, so it is determined to output guidance information regarding the general road, which is the road type at the current location (S110).

Returning to S106, if the road type is an expressway, the condition determining unit 208 determines whether the link type at the current position is a ramp road (S112). Here, if the link type is not a ramp road, the determination condition by the condition determination unit 208 is not satisfied, and therefore it is determined to output guidance information regarding the expressway, which is the road type at the current location (S114). Returning to S112, if the link type is a ramp road, the process moves to S116.

Next, road information for the immediately preceding road section is acquired (S116). The road information of the immediately preceding road section detected by the driving route detection unit 202 is acquired by the road information acquisition unit 204. In this embodiment, road information for link R2 in FIG. 7(b) is acquired. Since link R2 is an expressway main line, the road type is expressway and the link type is main line. Next, road information of the road section scheduled to be traveled is acquired (S118). The road information of the road section on which the vehicle is scheduled to travel, detected by the travel route detection unit 202, is acquired by the road information acquisition unit 204. In this embodiment, the road information of link R5 in FIG. 7(b) is acquired. Since the link R5 is a general road main line, the road type is a general road and the link type is a main road.

Next, the condition determination unit 206 determines whether or not the determination conditions are satisfied based on the road information of the immediately preceding road section, the road section on which the vehicle is currently traveling, and the road section in which the vehicle is scheduled to travel (S120). The determination condition in this embodiment is the change in road type and link type shown in FIG. If the transition of the road information does not satisfy the determination conditions shown in FIG. 5, it is determined to output guidance information regarding the expressway, which is the road type at the current location (S114). Here, the case where the determination conditions shown in FIG. 5 are not satisfied includes, for example, the case where the vehicle passes through a junction from an expressway and transitions to another expressway. Returning to S120, in this embodiment, if the determination conditions shown in FIG. 5 are satisfied, it is determined to preferentially output guidance information regarding the general road that is the planned road (S122).

Then, the output control unit 208 outputs the guidance information (S110, S114, S122) determined based on the determination result of the condition determination unit 206 via the display unit 140 and the audio output unit 150 (S124). Note that in outputting the guidance information in S122 where the condition determination unit 206 determines that the determination condition is satisfied, the output control unit 208 outputs guidance regarding the general road before entering the general road section that is the planned road section. Output information.

Here, FIG. 8 is a diagram showing an example of a display mode when the guidance information in this embodiment is for a general road, and an example of a display image when the guidance information is for an expressway. As an example of the display mode of a general road, an image such as a detailed map is output from the display unit 140, and as an example of a display mode of an expressway, an image such as a route guide image is output from the display unit 140. Therefore, when the determination condition such as S122 is satisfied, the image on the display unit 140 is changed so that the guide image of the expressway display mode that was displayed due to driving on the main line of the expressway changes to When driving, the display mode will change to a guidance image of a general road.

As described above, in this embodiment, guidance information is determined based on the transition state of the road type and link type, which are road information. Information on different road types can be provided in advance.

Note that in this embodiment, the guidance information is determined based on the case where the current position is on the ramp road, but in some embodiments, for example, in FIG. 7(b), when entering link R3 In advance, the road information of link R2, link R3, and link R5 is obtained from the route information etc., and it is detected in advance that the transition state of the road type and link type satisfies the conditions. Information regarding general roads may be output as the vehicle passes by.

Furthermore, in this embodiment, the images to be displayed are switched between images related to general roads and images related to expressways based on the determined guidance information, but as shown in FIG. The content image may be displayed superimposed on the originally displayed image.

Furthermore, some conventional in-vehicle devices display guidance information including expressway guidance information and general road guidance information by dividing the screen area, as shown in FIG. 10(a). In one embodiment, the output control unit 208 displays the guidance information that has been determined to be output preferentially by the condition determination unit 206 at a higher rate than other guidance information, as shown in FIG. 10(b). You can. Therefore, in FIG. 10(b), the guidance information for general roads that has been determined to be output preferentially is displayed at a higher rate than the guidance information for expressways. In addition, depending on the implementation, guidance information that has been determined to be output with priority may be emphasized, such as by changing the color of the image of the guidance information that has been determined to be output with priority compared to other guidance information. Preferably, it is displayed on a display screen. This allows the user to intuitively understand which guidance information is more important.

In some embodiments, when there is one display area larger than the other display areas in a three-part division as shown in FIG. 11(a), the condition is set as shown in FIG. An image of the guide information determined to be output preferentially by the determination unit 206 may be displayed in a large area of the display area. Therefore, in FIG. 11(b), the general road guidance information that has been determined to be output preferentially is displayed in a larger display area than the expressway guidance information.

In addition, in Fig. 11(b), the guidance information that has been decided to be output preferentially is simply displayed in a larger area than other guidance information, but each guidance information to be output has a numerical value, rank, etc. It is also possible to set a priority and change the display position and size according to the priority. An example of this will be explained with reference to FIGS. 11 and 12, which show the priority order of each piece of guidance information.

As in the above example, if the present invention is not applied, when a vehicle passes through a ramp and enters a general road, a split screen as shown in FIG. 11(a) is displayed. will be held. The priority order for each piece of guidance information is shown in "original priority order" in FIG. Normally, when a vehicle is driving on a ramp road, the road type is an expressway, so "expressway diagram" has the highest priority, followed by "lane guide", and the highest priority. The lower level is the "detailed map of general roads." Based on this "original priority order", the "expressway schematic map" with the highest priority order is output in a large display area as shown in FIG. 11(a).

Next, when the present invention is applied, a split screen display as shown in FIG. 11(c) is performed. The priority order for each guide information is shown in "priority order after change" in FIG. 12. When the condition determination unit 206 determines that the determination condition is satisfied, the priority of guidance information for expressways is lowered and the priority for general roads is increased. The output control unit 208 controls the display position and size according to this change in priority. As an example of its implementation, as shown in FIG. 11(c), the "lane guide" with the highest priority is displayed in the largest display area, and the other "detailed maps of general roads" and "expressway schematic maps" are displayed. ” may be displayed in the same size, or as shown in Figure 11(c), the “detailed map of general roads” with the next highest priority may be displayed larger than the “expressway schematic map”. Highly important information is emphasized and output according to priority.

By controlling the position and size of the display area according to the priority as described above, it becomes possible to emphasize information with high importance among a plurality of pieces of guidance information for the user to recognize. In the example above, the "lane guide" was required in real time and had a high priority, but when it was no longer needed, the "detailed map of general roads", which had the next highest priority, was displayed in the largest size. It may also be displayed in an area.

In this embodiment, the guidance information to be output is controlled by determining whether or not the determination conditions shown in FIG. 5 are satisfied. As a result, in the transition from an expressway to a general road, which is the driving state from V1 to V3, as shown in Figure 1, by considering the transition state of road information including the planned road, it is possible to It is now possible to provide guidance information regarding the road you are planning to travel on. Here, in the transition from a general road to an expressway, which is the driving state from V4 to V6 in FIG. 1, if the vehicle is traveling on a ramp road, the determination shown in FIG. 5, which is the determination condition of this embodiment, is determined. Since the conditions are not met, guidance information regarding the expressway will be output when driving on a ramp.

As described above, in this embodiment, even if the vehicle is traveling on the same ramp road, the guidance information to be output can be changed depending on whether the road the vehicle is scheduled to travel on is a general road or an expressway. As a result, it is possible to both anticipate information that will be needed in the future and suppress the provision of information that is less necessary, which could not be achieved by only providing guidance information by conventional map matching of the current location.

Note that although the above embodiment has been described using an example of switching between an expressway and a general road, this is just one example, and it is possible to apply to switching of road types other than switching between an expressway and a general road.

Although the preferred embodiments of the present invention have been described in detail above, the present invention is not limited to specific embodiments, and various modifications and variations can be made within the scope of the gist of the invention described in the claims. Changes are possible.

100: Vehicle-mounted device 110: Input unit 120: Current position detection unit 130: Navigation unit 140: Display unit 150: Audio output unit 160: Communication unit 170: Storage unit 172: Link data 174: Node data 176: Facility data 180: Control Parts V1 to V6: Current positions R1 to R6: Links N1 to N4: Nodes

Claims (14)

An electronic device that guides a moving route from a current location to a destination of a moving object,
a detection means for detecting a road on which the mobile object is scheduled to travel;
acquisition means for acquiring road information including a road on which the current position of the mobile object exists and a road type and link type of the road on which the mobile object is scheduled to travel detected by the detection means;
output means for outputting guidance information corresponding to the road information of the current location acquired by the acquisition means;
a determining means for determining whether or not to cause the output means to preferentially output guidance information regarding the road to be traveled on based on the road information;
output control means for controlling guidance information to be outputted by the output means based on the determination result of the determination means ;
The output means includes a display means for displaying the guidance information on a screen,
When the road type and link type at the current location are different from the road type and link type on the planned road, the determining means determines that information regarding the planned road is to be output preferentially as guidance information; The output control means is an electronic device that causes the display means to display guidance information corresponding to the road type of the planned travel road before entering the planned travel road. The electronic device according to claim 1, wherein the road type includes information on a general road and an expressway, and the link type includes information on a main road and a ramp road. 3. The electronic device according to claim 1 , wherein the guidance information includes information regarding general roads and information regarding expressways. 4. The electronic device according to claim 3, wherein the guide information includes a detailed map as information regarding the general road, and an expressway schematic diagram as information regarding the expressway. When the road type of the road at the current location is an expressway and the link type is a ramp road, and the road type of the road to be traveled is a general road and the link type is a main road, the determination means prioritizes information regarding the general road. 5. The electronic device according to claim 3, wherein the output control means causes the display means to display the guidance information regarding the general road before entering the general road that is the planned travel road. Device. When the road type of the road at the current location is an expressway and the link type is a ramp road, and the road type of the road to be traveled is an expressway and the link type is a main road, the determining means prioritizes information regarding the expressway. 6. The electronic device according to claim 3, wherein the output control means continues to output the guidance information regarding the expressway displayed on the display means . The acquisition means acquires the road information on the immediately preceding road that exists immediately before the road on which the current position of the mobile object has traveled, and the determination means acquires the road information on the immediately preceding road from the immediately preceding road to the road where the vehicle is scheduled to travel. The electronic device according to any one of claims 1 to 4 , wherein the electronic device determines whether or not guidance information regarding the road to be traveled is to be output preferentially to the output means based on a type and a transition state of the link type. The determination means determines from the acquired road information that information regarding a general road is to be output preferentially as guidance information when the mobile object is in the transition state after traveling on a ramp road of an expressway and exits to a general road; 8. The electronic device according to claim 7 , wherein the output control means causes the display means to display guidance information regarding the general road before entering the general road that is the planned travel road. The determining means determines from the acquired road information that information regarding the expressway is guidance information that is output preferentially when the mobile object is in the transition state after traveling on a ramp road of the expressway and exiting the expressway; 9. The electronic device according to claim 7 , wherein the output control means continues to output the guidance information regarding the expressway displayed on the display means . The output control means can further display images of a plurality of different guidance information on the display means, and display the guidance information determined by the determination means to be output preferentially in a manner different from other guidance information. The electronic device according to any one of claims 1 to 9 , wherein the electronic device is displayed on a display means. The output control means can further control an image area of a plurality of pieces of guidance information to be displayed on the display means, and may set the guidance information determined by the determination means to be output preferentially to be larger than other guidance information. The electronic device according to claim 10 , wherein the electronic device is displayed on a display means. The output means calculates the priority of each piece of guidance information and outputs the guidance information based on the priority when there is a plurality of pieces of guidance information to be output, and the output control means outputs the guidance information based on the priority. 12. The electronic device according to claim 1, wherein the priority is changed based on a determination result of the means, and the guidance information is displayed on the display means based on the changed priority . An information providing method in an electronic device that outputs guidance information from the current position of a moving object to a destination via an output means, the method comprising:
detecting a road on which the mobile object is scheduled to travel;
acquiring road information including the road type and link type of the road where the current location of the mobile object exists and the detected road where the vehicle is scheduled to travel;
outputting guidance information corresponding to the acquired road information of the current location to the output means;
a step of determining whether to cause the output means to output guide information regarding the road to be traveled on a priority basis based on the road information;
and a step of controlling guidance information to be outputted by the output means based on the determination result of the determining step ,
The output means includes a display means for displaying the guidance information on a screen,
In the determining step, when the road type and the link type at the current position are different from the road type and link type on the planned driving road, it is determined that the information regarding the planned driving road is to be output preferentially as guidance information. In this case, the controlling step further includes the step of displaying guidance information regarding the road type of the planned road on the display means before entering the planned road. An information providing program in an electronic device that outputs guidance information from the current position of a moving body to a destination via an output means,
detecting a road on which the mobile object is scheduled to travel;
The road on which the current position of the mobile object exists and the detected road on which the moving object is scheduled to travelIncluding road type and link typea step of obtaining road information;
outputting guidance information corresponding to the acquired road information of the current location to the output means;
determining whether or not guidance information regarding the road to be traveled is to be outputted preferentially by the output means based on the road information;
a step of controlling guidance information to be outputted by the output means based on the determination result of the determining step;has
The output means includes a display means for displaying the guidance information on a screen,
In the step of determining, when the road type and link type at the current position are different from the road type and link type on the scheduled driving road, it is determined that the information regarding the scheduled driving road is to be output preferentially as guidance information. In this case, the controlling step further includes a step of displaying guidance information regarding the road type of the planned road on the display means before entering the planned road..

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