JP6166536B2 - Route search system, route search method and program - Google Patents

Description

  The present invention relates to a route search system, a route search method, and a program.

  In recent years, car navigation systems (hereinafter referred to as car navigation systems) have been widely used. There are various types of car navigation systems. For example, there are a type installed in a vehicle, a type realized by a mobile terminal such as a smartphone (hereinafter referred to as a smartphone), and a type provided as a drive portal site service on the Web.

  Here, the drive portal site is an information service site for a driver (driver) that provides, for example, a vacation guide, weather forecast, parking lot information, and a navigation function. For example, the user can use the drive portal site from a place other than a vehicle such as home to search for a route to the destination in advance and confirm the route. It is also possible to set the route to the smartphone or car navigation by registering the searched route on the site and transferring the registered route information from the site to the smartphone or car navigation when boarding. is there.

  Usually, when using a car navigation system, the driver gets on the vehicle, inputs a departure place and a destination, and performs “route search”. As a route, a recommended route, a high-speed priority route, a distance priority route, a general road priority route, and the like are searched. The driver selects one of the routes, starts “route guidance” (starts map guidance, voice guidance, etc.), and starts the vehicle.

  Further, when using the service of the drive portal, the driver sets the registered route in the smartphone or the car navigation by transferring the registered route after the “route search” from the site to the smartphone or the car navigation. After that, “route guidance” is started and the vehicle is started.

  Here, as a technique related to the route search of the car navigation, there are the following techniques.

  For example, Patent Document 1 discloses a navigation device and a guidance route search method capable of searching for a route that can be avoided without making a detour as much as possible when a traffic jam occurs on the guidance route. Is described.

  Further, for example, in Patent Document 2, when a traffic obstacle such as traffic restriction or traffic jam occurs on a recommended route, a detour route other than the recommended route is searched, and the user selects a destination among the recommended route and the detour route. An invention is described in which a route determined to arrive early is presented to the user.

JP 2011-027610 A JP 2010-286277 A

  Here, on the route searched by the “route search”, there may be a case where a driver finds a difficult driving point that is difficult to drive (driving difficulty). The driving difficulty point is a specific point having a driving inhibition factor for the driver, such as a road with a very narrow vehicle width, a complicated intersection, or a road without a right turn lane. In a normal case, such a point is also a point where the driver wants to avoid traveling as much as possible.

  However, whether or not it is difficult to drive depends on the driving skill of the driver and the like, such a difficult driving point involves subjective judgment. For example, a road with a very narrow vehicle width is a difficult driving point for a beginner who is not accustomed to driving even if he is not familiar with driving even if he is not familiar with driving.

  However, in Patent Documents 1 and 2 described above, although it is possible to search for a detour route at a point of traffic regulation or traffic congestion, it is possible to detour a difficult driving point having various types and a judgment (subjectivity) of each driver. There is a problem that you can not do.

  Traffic regulation and traffic congestion are fluid. At the time of departure, there may be no traffic regulations or traffic jams in the first place. For this reason, it is not possible to determine whether or not there is a detour for points including fluid elements, such as traffic restrictions and traffic jams, only after the occurrence of fluid elements. In particular, when it is desired to search and register a route in advance using the service of the drive portal, it is impossible to perform a route search that bypasses these points in advance.

  The present invention has been proposed in view of the above points, and an object of the present invention is to provide a route search system or the like that searches for a detour route of a difficult driving point based on the judgment of the driver.

In order to solve the above problems, a route search system according to the present invention is:
Select multiple types of driving inhibition factors with the route searching means to search for the route from the starting point to the destination and the driving inhibition factors that require attention to the driver for driving / driving by default. Road data that presents as a specific point information that can be presented and registration means that accepts one or more driving inhibition factors selected by the user, and where or where the driving inhibition factor selected by the user exists. And using the road data, search means for searching for a specific point located on the route and having a driving inhibition factor selected by the user by the registration means ,
On the route, the display information indicating the specific point is displayed at the position where the specific point is searched as an icon drawn in a pattern that intuitively recalls the driving inhibition factor selected by the user by the registration unit. Display means for superimposing and displaying the route;
When the display information on the route is individually input and operated by the user, a detour route searching means for searching for a detour route for detouring a specific point indicated by the display information;
Have

  According to the embodiment of the present invention, it is possible to provide a route search system or the like that searches for a detour route of a difficult driving point based on the judgment of the driver.

1 is a network configuration diagram of a route search system 100. FIG. It is a figure which shows the hardware structural example of the navigation server 1 and the terminal 2. FIG. 2 is a diagram illustrating a software configuration example of a route search system 100. FIG. It is a figure which shows an example of the driving difficulty point information. It is a figure which shows an example of the driving difficulty point information 2. FIG. It is a figure which shows an example of matching of a driving difficulty point. It is a figure which shows the usage example 1 of the terminal 2 concerning this embodiment. It is a figure which shows the usage example 2 of the terminal 2 concerning this embodiment. FIG. 3 is a flowchart showing a processing example of a route search system 100.

  Hereinafter, preferred embodiments of the present invention will be described.

<Configuration>
(Network configuration)
FIG. 1 is a network configuration diagram of a route search system 100 according to the present embodiment. In the route search system 100, a navigation server 1 and a terminal 2 are connected via a network 3.

  The navigation server 1 is a server device that provides services and functions related to navigation to the terminal 2. When the terminal 2 is mainly composed of the portable terminal 2a, the PC 2b, etc., services related to navigation are provided to these terminals.

  The terminal 2 is a navigation terminal used by the user. The terminal 2 includes, for example, a mobile terminal 2a such as a smartphone, a tablet, or a mobile phone, a PC 2b that is a general personal computer, a vehicle-mounted navigation dedicated terminal 2c, and the like.

  In recent years, there are various devices and modes of use, even though they are generally called car navigation systems. First, the navigation dedicated terminal 2c is generally used. In the case of the navigation dedicated terminal 2c, it is normally mounted on the vehicle and performs route search and route guidance when getting on.

  In addition, the mobile terminal 2a is normally used as a mobile phone or an information terminal, and performs route search and route guidance when getting on, like the navigation dedicated terminal. In the case of the portable terminal 2a, for example, the portable terminal 2a has a client type that communicates with the navigation server 1 via a web browser and receives information related to navigation or a certain degree of function on the portable terminal 2a side in advance. There are application types that communicate with the navigation server 1 accordingly.

  Further, when using the drive portal site, the PC 2b at home or the like can be a navigation terminal. As described above, the drive portal site is an information service site for the driver (driver). For example, the user can access a drive portal site (corresponding to the navigation server 1) from home, search for a route to the destination in advance, and confirm the route. It is also possible to set the route to the smartphone or car navigation system by registering the searched route on the site and transferring the registered route information from the site to the smartphone or car navigation system when boarding. is there.

  The network 3 is a communication network including wired and wireless. For example, a telephone line network, WiFi (registered trademark), and the Internet are included.

(Hardware configuration)
FIG. 2 is a diagram illustrating a hardware configuration example of the navigation server 1 and the terminal 2 according to the present embodiment.

  As shown in the figure, the navigation server 1 has a CPU (Central Processing Unit) 11, a ROM (Read Only Memory) 12, a RAM (Random Access Memory) 13, an HDD (Hard Disk Drive) 14, and an input as shown in the figure. A device 15, a display device 16, and a communication device 17 are included.

  Further, as shown in the figure, the terminal 2 includes a CPU 11, a ROM 12, a RAM 13, an HDD 14, an input device 15, a display device 16, a communication device 17, a voice input / output device 18, and a GPS receiver 19 as a hardware configuration. .

  The CPU 11 executes various programs and performs arithmetic processing. The ROM 12 stores a program necessary for startup. The RAM 13 is a work area for temporarily storing processing performed by the CPU 11 and storing data. The HDD 14 stores various data and programs. The input device 15 is, for example, a keyboard or a mouse. The display device 16 is a display, and displays, for example, a navigation route. The communication device 17 communicates with other devices such as the navigation server 1 via the network 3. The voice input / output device 18 is a device that performs voice input / output. For example, a voice guidance for navigation is output. The GPS receiver 19 receives a current position used for navigation from a GPS satellite.

  Since the terminal 2 can be, for example, a smartphone or a navigation dedicated terminal, the input device 15 can be realized by a touch panel that can detect tap coordinates (touch coordinates) on the screen instead of a keyboard and a mouse. In this case, the input operation is realized by a touch panel on the screen, a software key controlled by a program, and the like.

(Software configuration)
FIG. 3 is a diagram illustrating a software configuration example of the route search system 100 according to the present embodiment. The route search system 100 includes a storage unit 101, a route search unit 102, a driving difficulty point search unit 103, a display unit 104, an input unit 105, a registration unit 106, and a route guide unit 107 as main functional units.

  The storage unit 101 has a function of storing various data used for navigation, such as map / road data and difficult-to-drive point information.

  Difficulty driving point information is a driving obstruction factor that requires special attention when driving and driving, such as roads with very narrow widths, complicated intersections, and roads without a right turn lane. This is information about the location / area you have. However, the driving difficulty point is a point that involves subjective judgment, and whether or not it is difficult to drive depends on the skill of the driver. For example, a road with a very narrow vehicle width is a difficult driving point for a beginner who is not accustomed to driving even if he / she is not familiar with driving even if he / she does not want to travel. In this sense, the difficult driving point stored in advance in the storage unit 101 can be said to be a difficult driving point candidate that can be a difficult driving point. In many cases, the driving difficulty point information is physically caused by a geographical shape, a terrain shape, a road shape, or the like, such as a road having a vehicle width restriction or a height restriction.

  Further, the storage unit 101 may have temporary traffic information that is updated in real time, such as traffic regulation information and traffic jam information. Traffic regulation information, traffic jam information, and the like are information that is caused by traffic conditions that occur temporarily and fluidly, and is updated daily. For this reason, the traffic state can be eliminated in a relatively short period of time.

  The route search unit 102 searches for a route from a departure point input from the user or GPS to a destination set by the user. For the route search, a map / road data or the like stored in the storage unit 101 is used. Further, a route that avoids traffic jam may be searched by using traffic regulation information, traffic jam information, and the like.

  The route to be searched may be a route based on any algorithm desired by the user, such as a recommended route, a high-speed priority route, a distance priority route, or a general road priority route. In the present embodiment, for example, a recommended route that can arrive the earliest from the starting point to the destination can be searched.

  Further, the route search unit 102 according to the present embodiment has a function of searching for a detour route for detouring the difficult driving point input by the user (a detour route search unit), details of which will be described later.

  The difficult driving point search unit 103 is located on the route searched by the route searching unit 102 and searches for a difficult driving point having a driving inhibition factor. Specifically, the presence or absence of a driving difficulty point is searched on the searched route.

  The display unit 104 displays a searched route by superimposing a difficult driving point icon indicating a difficult driving point on a position where the difficult driving point is searched on the searched route. As a result, the user specifically confirms the searched route from the departure place to the destination, and the presence of the difficult driving point on the searched searched route, and the presence of the difficult driving point icon on the searched route. It is possible to recognize the specific position of the difficult driving point.

  The input unit 105 has a function of detecting and inputting a difficult driving point icon on the search route when an input operation is performed by an operation such as a touch. Specifically, the input operation information is a driving difficulty point icon (or an identifier of the driving difficulty point icon).

  The registration unit 106 has a function of registering a user-desired driving difficulty point in advance. The user registers a driving difficulty point that he / she does not want to drive / run from among a plurality of types of driving difficulty points.

  The route guidance unit 107 performs navigation along the search searched by the route search unit 102 (starts map guidance, voice guidance, and the like). The route guidance unit 107 includes functions necessary for executing navigation, such as a GPS receiving unit for acquiring the current location and a voice output unit for performing voice guidance (not shown).

  These functions may be realized as the entire route search system 100. Therefore, which function of the navigation server 1 and / or the terminal 2 is configured depends on various usage modes of the car navigation. That is, it is not always realized only on any one device.

  For example, in the case of the client-type portable terminal 2a, it is sufficient to have at least the display unit 104 and the input unit 105, and other functions may be arranged in the navigation server 1. Conversely, the application-type mobile terminal 2a may be configured to have all the above functions.

  In addition, for example, in the case of a PC 2b at home or the like that uses a drive portal site, it is only necessary to have at least the display unit 104 and the input unit 105.

  Further, for example, the navigation dedicated terminal 2c may be configured to have all the above functions.

  These functional units are realized by a computer program executed on hardware resources such as a CPU, a ROM, and a RAM of a computer constituting the navigation server 1 and / or the terminal 2. These functional units may be read as “means”, “module”, “unit”, or “circuit”.

(Driving point information)
FIG. 4 is a diagram illustrating an example of the driving difficulty point information 1 according to the present embodiment.

  Difficulty driving point information is information on points / regions that have driving obstruction factors that require special attention when driving or driving, such as roads with very narrow widths, complicated intersections, or roads without right turn lanes. is there. Stored in the storage unit 101 in advance.

  Specifically, the difficult driving point information 1 in FIG. 4 is information for managing the difficult driving point, and includes items and item values of “point ID”, “explanation”, “display icon”, and “registration”. Have.

  “Point ID” indicates a unique identifier for identifying each difficult driving point.

  “Description” indicates a description of the difficult driving point. This explanation content is also used as information displayed to the user in order to explain what kind of driving impediment the driving difficulty point has.

  The “display icon” indicates a display icon image used for illustrating the difficult driving point on the searched route. For example, specific image files such as “000.gif”, “001.gif”, and “002.gif” are designated.

  “Registration” is flag information indicating whether or not the difficult driving point is illustrated on the map. As for the default (initial value), all are checked (registered). In this case, all the difficult driving points are displayed on the searched route in order to alert the driver.

  Here, as described above, the difficult driving point is a point that involves subjective judgment depending on the driver's skill, etc., and therefore there is a default difficult driving point that does not matter as a difficult driving point depending on the driver. To do. Therefore, depending on the driver, in order to avoid displaying unnecessary driving difficulty points, the driver can set driving difficulty points displayed on the navigation search route by himself / herself. Thereby, the driver can customize the driving difficulty point registered as the default to an arbitrary driving difficulty point.

  Specifically, on the predetermined setting screen, it is only necessary to remove the check (registration) of difficult driving points that do not require display on the map. Referring to FIG. 4, for example, “Spot ID”: 003 and “Spot ID”: 0006 are not checked. In this case, the difficult driving point and the accident frequent occurrence point indicating the time of the fifth difference are not displayed on the searched route.

  FIG. 5 is a diagram illustrating an example of the driving difficulty point information 2 according to the present embodiment. Specifically, a display icon image used as the “display icon” in FIG. 4 is shown. The display icon image is included in the difficult driving point information and is stored in the storage unit 101 in advance.

  For example, “001.gif” is a display icon image representing a driving difficulty point with “height restriction” on the map. In fact, referring to “001.gif”, a design that intuitively recalls the existence of “height restriction” is drawn. In addition, referring to “point ID”: 001 indicating a point with height restriction in FIG. 4, “001.gif” is designated as the “display icon”. “Point ID”: 001 is used to display “001.gif” that reminds the existence of “height restriction” in order to express that it is a driving difficulty point with “height restriction”.

  Further, for example, “004.gif” is a display icon image representing a difficult driving point having an “intersection without a right turn lane” on the map. The design is intuitively reminded of the existence of an “intersection without a right turn lane”. Further, referring to “Point ID”: 004 indicating an intersection without a right turn lane in FIG. 4, “004.gif” is designated as the “display icon”.

  Note that “000.gif” is a general-purpose display icon image. When there is a driving difficulty point that does not correspond to any of the other driving difficulty points, the general-purpose display icon image “000.gif” is used.

(Map / Road data)
The map / road data is map and road geographical data used for navigation. Stored in the storage unit 101 in advance.

  Further, the map / road data according to the present embodiment includes information (for example, “point ID”) for specifying a difficult-to-drive point. As described above, the driving difficulty point is a point where the driver wants to avoid traveling as much as possible, such as a road with a very narrow vehicle width, a complicated intersection, or a road without a right turn lane. Accordingly, the map / road data holds information on locations / points where driving difficulty points exist as one of the map information and road information on the map / road.

  For example, on a map / road data, a location / point where a difficult-to-drive point exists is associated with information of “point ID” indicating the difficult-to-drive point. Then, it is possible to grasp that there is a difficult driving point specified by the “point ID” at the place / point.

  FIG. 6 is a diagram illustrating an example of association of difficult driving points according to the present embodiment. Specific mapping methods include (a) point position coordinates on map / road data, (b) nodes or links (arcs) consisting of certain sections, (c) intersection nodes, or (d) certain area ranges Are associated with the information of “point ID” indicating a difficult driving point. In addition, depending on the type of driving difficulty point and the direction of travel, such as an intersection without a right turn or left turn lane, (c) information on “point ID” for each traveling direction (for example, upward direction, downward direction, etc.) Associate.

<Usage example>
Next, a usage example of the terminal 2 according to the present embodiment will be specifically described.

(Usage example 1)
FIG. 7 is a diagram illustrating a usage example 1 of the terminal 2 according to the present embodiment.

  STEP 1: First, the driver (user) inputs information of “departure point” and “destination” on the screen and presses “route search” in order to perform route search.

  STEP 2: When “Route Search” is pressed, a route (for example, recommended route) from “Departure Point” to “Destination” is searched on the screen. At this time, if a difficult driving point exists on the searched route, a display icon image indicating the difficult driving point is also displayed. When the driver recognizes that there is a difficult-to-drive point on the searched route and wants to confirm details (explanation contents) of the difficult-to-drive point, the driver performs an operation such as touching the display icon image.

  STEP 3: When a display icon image indicating a difficult driving point is operated, an explanation of the difficult driving point is displayed on the screen. Accordingly, the driver can recognize details (explanation contents) of what kind of driving difficulty points exist on the searched route. Then, when the driver wants to bypass the difficult driving point on the searched route, the driver depresses “Detour here”.

  STEP 4: When “detour here” is pressed, a route (for example, a recommended route) from “departure point” to “destination” is re-searched on the screen. At this time, a bypass route that bypasses the difficult driving point operated by the driver is searched for on the searched route. The old route is displayed together so that it can be compared with the detour route.

  As described above, when the driver searches for a route from the “departure point” to the “destination”, if there is a difficult driving point on the searched route, the display icon image indicating the difficult driving point is displayed. Is displayed. In addition, when the driver wants to bypass a difficult driving point on the searched route, the driver can re-search for a bypass route that bypasses the difficult driving point to be bypassed by a simple operation of operating a display icon image. It is.

(Usage example 2)
FIG. 8 is a diagram illustrating a usage example 2 of the terminal 2 according to the present embodiment.

  Compared to the above-described usage example (No. 1), when the driver wants to bypass a plurality of difficult driving points, the driver can re-search for a bypass route that bypasses the plurality of difficult driving points to be bypassed.

  STEP 1: First, the driver (user) inputs information of “departure point” and “destination” on the screen and presses “route search” in order to perform route search.

  STEP 2: When “Route Search” is pressed, a route (for example, recommended route) from “Departure Point” to “Destination” is searched on the screen. At this time, when there are a plurality of difficult driving points on the searched route, a plurality of display icon images indicating the difficult driving points are displayed. Accordingly, the driver recognizes that there are a plurality of difficult driving points on the searched route, and performs an operation such as touch on the display icon image.

  STEP 3: When a display icon image indicating a difficult driving point is operated, an explanation of the difficult driving point is displayed on the screen. When the driver wants to bypass a plurality of difficult driving points on the searched route, the driver selects a display icon image indicating each of the difficult driving points, and finally presses “Deviate selected point”.

  STEP 4: When “bypass selected point” is pressed, a route (for example, recommended route) from “departure point” to “destination” is re-searched on the screen. At this time, a route that bypasses all of the plurality of difficult driving points that are selected and operated is searched for on the searched route.

  As described above, when the driver searches for a route from the “departure point” to the “destination” and wants to bypass a plurality of difficult driving points on the searched route, the driver displays a plurality of indications desired to be bypassed. By a simple operation of manipulating the icon image, it is possible to re-search for a detour route that detours the difficult driving point to be detoured.

<Operation>
Next, the processing operation of the mobile terminal 1 according to the first embodiment will be described.

  FIG. 9 is a flowchart illustrating a processing example of the route search system 100 according to the first embodiment.

  S1: First, the input unit 105 determines whether or not there is an instruction for “route search”. Specifically, the “route search” instruction determination determines whether the departure point input from the user or GPS, the destination set by the user, and the “route search” instruction are input. (For example, refer to STEP 1 in FIG. 8).

  S2: The route search unit 102 executes a “route search” process when the input unit 105 inputs a departure point, a destination, and a “route search” instruction. The route to be searched may be a route based on any algorithm desired by the user, such as a recommended route, a high speed priority route, a distance priority route, or a general road priority route. In the present embodiment, for example, a recommended route that can arrive the earliest from the starting point to the destination can be searched.

  S3: When a route (for example, a recommended route) is searched by the route search unit 102, the driving difficulty point searching unit 103 searches for a driving difficulty point located on the searched route. Specifically, it is searched whether or not the information of “point ID” indicating the difficult driving point of the difficult driving point is associated with the map / road data of the searched route.

  The difficult driving point to be searched is a “registered” point. As described above, the driver can arbitrarily set and customize the driving difficulty point displayed on the navigation search route through a predetermined setting screen (see, for example, FIG. 4). Therefore, the driving difficulty point search unit 103 searches the driving difficulty point on the searched route with the driving difficulty point whose “registration” is checked in the driving difficulty point information as a search target.

  S4: The display unit 104 determines whether or not a difficult driving point has been searched on the searched route by the difficult driving point search unit 103. When a driving difficulty point is searched, it progresses to S5. On the other hand, when a driving difficulty point is not searched, it progresses to S6.

  S5: When a driving difficulty point is searched in S4, the display unit 104 places a driving difficulty point icon indicating the searched driving difficulty point on the searched route at the position where the driving difficulty point is searched. . A display icon image corresponding to a “point ID” indicating a difficult driving point is used as the difficult driving point icon to be arranged (see, for example, “display icon” in FIG. 4 and FIG. 5).

  S6: The display unit 104 displays the searched route. In S5, when the difficult driving point icon is arranged on the searched route, the difficult driving point icon is displayed on the searched route together with the searched route (see, for example, STEP2 in FIG. 8).

  S7: The input unit 105 detects whether or not the operation difficulty point icon on the searched route has been input (see, for example, STEP 2 in FIG. 8). When the operation difficult point icon is input, the process proceeds to S8.

  S8: When an input operation of the difficult driving point icon is detected by the input unit 105, a “point ID” corresponding to the operated difficult driving point icon is input. The display unit 104 acquires “explanation” corresponding to the “spot ID” from the storage unit 101 using the “spot ID” as a key (for example, “explanation” in FIG. 4). Then, the display unit 104 displays the acquired “description” (see, for example, STEP 3 in FIG. 8).

  S9: The input unit 105 determines whether there is a driving difficulty point on the searched route and an instruction of “route search”. Specifically, the instruction determination of “route search” may be performed by determining whether or not one or more difficult driving points (= detour points) and a “route search” instruction are input (for example, FIG. 8). (See STEP 3).

  S10: The route search unit 102 temporarily stores the input difficulty point (= detour point) in a memory such as a RAM. The reason why the difficult driving point is stored in the memory is that the difficult driving point inputted before the second or subsequent route re-search can be excluded from the re-searched route.

  S11: The route search unit 102 executes the “route search” process again to search for a route that bypasses the difficult driving point. The route search unit 102 acquires a driving difficulty point stored in the memory, and searches for a bypass route that bypasses the acquired driving difficulty point (= a bypass point).

  When a detour route is searched for in S11, the process proceeds to S3 again, and steps S3 to S3 are repeated. Specifically, in S3, the difficult driving point search unit 103 searches for a difficult driving point located on the searched detour route again. This is because another difficult driving point may exist on the searched detour route. If a difficult driving point is searched for on the detour route, the display unit 104 searches for a difficult driving point icon indicating the searched difficult driving point on the searched route in S5. Place it at the specified position. In S6, when the difficult driving point icon is arranged on the detour route, the display unit 104 displays the difficult driving point icon on the detour route together with the searched detour route (for example, FIG. 8). (See STEP4).

  S12: The input unit 105 determines whether or not there is an instruction for “route guidance”. Specifically, the “route guidance” instruction determination may be performed by determining whether or not the “navigation start” instruction is input by the user (see, for example, STEP 4 in FIG. 8).

  S13: The route guidance unit 107 executes “route guidance”. The route guide unit 107 acquires a route (including a detour route) searched by the route search unit 102 as a route to be guided. Thereby, navigation is performed along the searched route (map guidance, voice guidance, etc. are started). For example, the driver starts the vehicle according to the navigation.

<Summary>
As described above, according to the route search system 100 according to the present embodiment, for example, the following effects can be obtained.

  When the driver (user) inputs a starting point, a destination, and the like and executes “route search”, a predetermined route is searched and displayed. At this time, if there is a driving difficulty point having a driving inhibition factor on the searched route, a driving difficulty point icon is arranged and displayed at the position / point where the driving difficulty point exists on the searched route. . As a result, the driver can visually and intuitively grasp the presence of the difficult driving point and its position on the searched route to the destination.

  In addition, the driving difficulty point icon is drawn in a pattern that intuitively reminds us what kind of driving obstruction factors are present, so the driver can see at a glance on the search route, and specifically It is possible to easily grasp what kind of difficult driving point exists.

  In addition, the driver operates the difficult driving point icon to display a description of the content of the difficult driving point. Thereby, the driver can grasp in detail what kind of driving difficulty points exist.

  In addition, when the driver wants to bypass any difficult driving point existing on the searched route, for example, the driver specifies a difficult driving point on the searched route and then presses a button such as “detour here”. By a simple operation, a detour route to the destination that detours the difficult driving point can be re-searched. Thus, even when there is a difficult driving point on the searched route that the driver does not want to travel, the driver can bypass the designated difficult driving point by a simple operation. That is, it is possible to perform a route search more suitable for this driver.

  In addition, when the driver wants to bypass a plurality of difficult driving points on the searched route, the same simple operation can be used to bypass a plurality of difficult driving points, that is, for this driver. It is possible to perform a suitable route search.

  Further, on the searched route, the difficult driving point to be displayed can be set and registered by the driver himself from a plurality of types of difficult driving points. The difficult driving point is a point that involves subjective judgment depending on the driver's skill, etc., and the driver registers in advance the difficult driving point to be displayed (the point that the driver himself thinks is a difficult driving point). As a result, it is possible to prevent many difficult-to-drive points that do not need to be displayed on the screen and to complicate the screen display.

  In addition, the difficult driving point according to the present embodiment is different from traffic regulation information and traffic jam information, and is physically caused by geographical shape, topographic shape, road shape, etc. Information with small fluidity. For this reason, for example, even when the driver intends to search for a route in advance using the service of the drive portal, a route search for detouring these difficult driving points can be performed in advance. In recent years, a car navigation system generally has various devices and usage modes. Accordingly, it is possible to further increase the availability of usage in the car navigation device and usage modes.

  As described above, according to the present embodiment, it is possible to provide a route search system or the like that searches for a detour route of a difficult driving point based on the judgment of the driver. The present invention has been described with reference to preferred embodiments of the present invention. While the invention has been described with reference to specific embodiments, various modifications and changes may be made to these embodiments without departing from the broad spirit and scope of the invention as defined in the claims. Obviously you can. In other words, the present invention should not be construed as being limited by the details of the specific examples and the accompanying drawings.

1 navigation server 2 terminal 3 network 11 CPU
12 ROM
13 RAM
14 HDD
DESCRIPTION OF SYMBOLS 15 Input device 16 Display apparatus 17 Communication apparatus 18 Voice input / output device 19 GPS receiver 101 Storage part 102 Route search part 103 Difficulty point search part 104 Display part 105 Input part 106 Registration part 107 Route guidance part

Claims (5)

A route search means for searching for a route from the departure place to the destination;
One or more driving obstructions selected by the user by presenting multiple types of driving obstruction factors in a state where driving obstruction factors that require caution when driving / driving are selected at the initial value. Registration means for accepting the factors;
Road data that holds information on a place or point where the driving inhibition factor selected by the user by the registration unit exists as a specific point;
Search means for searching for a specific point located on the route using the road data and having a driving inhibition factor selected by the user by the registration means ;
On the route, the display information indicating the specific point is displayed at the position where the specific point is searched as an icon drawn in a pattern that intuitively recalls the driving inhibition factor selected by the user by the registration unit. Display means for superimposing and displaying the route;
When the display information on the route is individually input and operated by the user, a detour route searching means for searching for a detour route for detouring a specific point indicated by the display information;
A route search system. The display means includes
When a plurality of the specific points are searched on the route, a plurality of display information indicating the specific points are displayed.
The detour route search means includes:
When the user performs a plurality of input operations on the display information on the route, the user searches for a bypass route for bypassing all of the specific points indicated by the display information.
The route search system according to claim 1.   The route search system according to claim 1 or 2, wherein when the display information is input, information on a driving inhibition factor at a specific point indicated by the display information is displayed. In the route search system,
A route search means for searching for a route from the departure place to the destination;
The registration means presents a plurality of types of driving inhibition factors that can be selected and selected by the user in a state where the driving inhibition factors that require attention in driving / driving for the driver are selected as initial values. The procedure for accepting the above driving inhibition factors,
The search means is located on the route using road data that holds, as a specific point, information on the location or point where the driving inhibition factor exists selected by the user by the registration means, and is selected by the user by the registration means and procedures to search for a specific location with the operation inhibition factor,
The display means searches for the specific point as an icon drawn on the route with display information indicating the specific point as an icon that intuitively recalls the driving inhibition factor selected by the user by the registration means . A procedure for displaying the route in a superimposed manner at the position,
A detour route searching means, when the display information on the route is individually input by the user, a procedure for searching for a detour route for detouring a specific point indicated by the display information;
A route search method comprising: In the computer,
A route search means for searching for a route from the departure place to the destination;
Registration hands stage, while the operation inhibition factor Note Upon operation and travel for the driver in the initial value is required is selected, the selectable presenting a plurality of types of driving impediments, user selected 1 A procedure for accepting two or more driving obstruction factors;
The search means is located on the route using road data that holds, as a specific point, information on the location or point where the driving inhibition factor exists selected by the user by the registration means, and is selected by the user by the registration means and procedures to search for a specific location with the operation inhibition factor,
The display means searches for the specific point as an icon drawn on the route with display information indicating the specific point as an icon that intuitively recalls the driving inhibition factor selected by the user by the registration means . A procedure for displaying the route in a superimposed manner at the position,
A detour route searching means, when the display information on the route is individually input by the user, a procedure for searching for a detour route for detouring a specific point indicated by the display information;
A program for running

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