JP2008261746A - Map information processing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a map information processing device capable of creating exact intersection information. <P>SOLUTION: This map information processing device comprises a map information storage section 16a for storing map information including road information, an intersection coordinate setting section 19 for setting, as an intersection coordinate, the coordinate of an intersection other than the existing intersections formed of roads indicated by the road information acquired from the map information storage section, and a road information updating section 20 for adding the point indicated by the intersection coordinate set by the intersection coordinate setting section, as a new intersection, to the road information stored in the map information storage section. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a map information processing apparatus that processes map information, and more particularly to a technique for detecting a new road and incorporating it into map information.

  Conventionally, navigation devices mounted on vehicles are known. The map information processing device built in the navigation device realizes a navigation function such as map display, route search or route guidance based on prestored map information. The road situation may be different. For example, there may be a case where an intersection where a road and a road intersect actually exists but does not exist in the map information. When a route search is performed using such map information, there is a problem that the route becomes a roundabout route. In order to solve such a problem, when traveling on a road that does not exist in the map information that it owns, a navigation device that detects a new road from the travel history and adds or updates it to the stored map information It has been known.

  As such a navigation device, for example, Patent Document 1 discloses a navigation device that can be used as new map information every time the vehicle travels on a road that is not in the map information. This navigation device has position detection means for detecting the position of the vehicle and map information storage means for storing map information corresponding to the position of the vehicle detected by the position detection means. An actual travel route storage means for storing the travel route, an actual travel route of the vehicle stored in the actual travel route storage means, a route comparison means for comparing the existing route stored in the map information storage means, and a route comparison means As a result of the comparison, a new route storage means for storing, as new route information, a route that does not match the existing route stored in the map information storage means among the actual travel routes of the vehicle.

  Patent Document 2 discloses a map information processing apparatus that enables route search and route guidance in accordance with actual road conditions. The map information device includes a map information storage unit that stores map information including road information, and a new road that does not exist in the road information included in the map information that corresponds to the position detected by the position detection unit. A new road detection means to detect and a crossing point where the detected new road and a road included in the map information or a road detected in the past by the new road detection means intersect other than the start and end points of the new road And road update information including information for updating the road information included in the new road information and the map information, based on the intersection determination means and the new road information and the intersection information indicating the intersection determined by the intersection determination means. A road update information generating means that updates the road information included in the map information and writes the new road information to the new road information storage means based on the road update information. It is provided with means.

JP 11-37783 A JP 2006-53123 A

  However, in the navigation device described in Patent Document 1 or Patent Document 2 described above, since the navigation device itself detects a new road, an intermediate intersection does not exist as map information, which is a serious problem. In the navigation device described in Patent Document 2, in order to solve the above-described problem, a halfway intersection is generated using a travel pattern. However, the map information stored in the navigation device has an error from the actual position in the creation process. Also, errors are included in the position information acquired by a GPS (Global Positioning System) receiver mounted on the navigation device. For this reason, there is a problem in that erroneous intersection information is generated.

  The present invention has been made to solve the above-described problems, and an object thereof is to provide a map information processing apparatus capable of generating accurate intersection information.

  In order to solve the above problems, a map information processing apparatus according to the present invention is formed by a map information storage unit that stores map information including road information, and a road indicated by road information acquired from the map information storage unit. An intersection coordinate setting unit that sets the coordinates of intersections other than existing intersections as intersection coordinates, and a point indicated by the intersection coordinates set by the intersection coordinate setting unit are stored as new intersections in the map information storage unit. A road information update unit to be added to the road information is provided.

  According to the map information processing apparatus of the present invention, when a new intersection is created by road construction at a point where the road intersects (intersection), the user can designate the intersection as an intersection. As a result, accurate intersection information can be generated. As a result, for example, it is possible to avoid the inconvenience that the route searched by the route search is actually a detour.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the following embodiments, the same or corresponding components will be described with the same reference numerals.
Embodiment 1 FIG.
1 is a block diagram showing a configuration of a map information processing apparatus according to Embodiment 1 of the present invention. The map information processing apparatus includes a navigation device 1, a display device 40 connected to the navigation device 1, an audio output device 41, an input device 42, a vehicle speed sensor 43, an angular velocity sensor 44, and a GPS receiving antenna 45. .

  The navigation device 1 includes a display map calculation unit 10, a route calculation unit 11, a display control unit 12, an audio output control unit 13, an input reception unit 14, a positioning unit 15, an HDD (Hard Disk Drive) 16, an HDD access unit 17, and a temporary The storage memory unit 18, an intersection coordinate setting unit 19, a road information update unit 20, and a central control unit 21 are included. The HDD 16 includes a map information storage unit 16a.

  The central control unit 21 follows a pre-programmed procedure, the display map calculation unit 10, the route calculation unit 11, the display control unit 12, the audio output control unit 13, the input reception unit 14, the positioning unit 15, the HDD access unit 17, the temporary The storage memory unit 18, the intersection coordinate setting unit 19 and the road information update unit 20 are started and stopped, and data transmission / reception between these components is controlled. In the following, in order to avoid complicated explanation, the description that data transmission / reception between the above-described components is performed via the central control unit 21 is omitted.

  The display map calculation unit 10 calculates a map image for display from the map information sent from the map information storage unit 16 a of the HDD 16 via the HDD access unit 17. The map image obtained by the calculation in the display map calculation unit 10 is sent to the display control unit 12. The route calculation unit 11 sends a recommended route between any two points of the points input from the input receiving unit 14 or the points sent from the positioning unit 15 from the map information storage unit 16a of the HDD 16 to the HDD access unit 17. Calculate based on the map information sent via. The recommended route calculated by the route calculation unit 11 is sent to the display control unit 12.

  The display control unit 12 converts the display map image sent from the display map calculation unit 10 or the recommended route sent from the route calculation unit 11 into a signal in a format that the display device 40 can display, This is sent to the display device 40. Thereby, a map, a recommended route, and the like are displayed on the display device 40. The voice output control unit 13 provides voice information for notifying the driver of voice information for guiding to the destination or information included in the map information in accordance with the recommended route sent from the route calculation unit 11. The output device 41 converts the signal into a format that can be output and sends the signal to the audio output device 41. The input receiving unit 14 receives a signal sent from the input device 42 and sends it to the display map calculating unit 10, the route calculating unit 11, the intersection coordinate setting unit 19, or the like.

  The positioning unit 15 corresponds to the position detection means of this invention. The positioning unit 15 is based on signals sent from the vehicle speed sensor 43, the angular velocity sensor 44, and the GPS receiving antenna 45 (referred to as a vehicle on which the map information processing apparatus is mounted. The same applies hereinafter). Position information is generated by detecting the position, the generated position information is compared with the road information stored in the HDD 16, and the current position of the vehicle corresponds to any position on any road represented by the road information. Calculate what to do. The positioning unit 15 calculates a recommended route from its current position to the input point in the route calculation unit 11 when the display map calculation unit 10 performs a calculation for displaying a map around itself. In this case, the positioning result is sent to the display map calculation unit 10 or the route calculation unit 11, respectively.

  The HDD 16 includes a map information storage unit 16a that stores map information. The map information storage unit 16a stores map information including road information when the map information processing apparatus is shipped. The HDD access unit 17 controls the writing of data to the HDD 16 and the reading of data from the HDD 16 in accordance with instructions from the central control unit 21.

  The temporary storage memory unit 18 is composed of, for example, a volatile memory, and is used for temporarily storing various information. When each component connected to the central control unit 21 executes a process using road information included in the map information stored in the HDD 16, the component used in the process is processed. The map information of the corresponding area is read from the HDD 16 by the HDD access unit 17, and the read information is stored in the temporary storage memory unit 18 for use.

  The intersection coordinate setting unit 19 is a point excluding an existing intersection formed by the road indicated by the road information acquired from the map information storage unit 16a based on data sent from the input device 42 via the input receiving unit 14. That is, the coordinates of the intersection are set as the intersection coordinates. Details of the processing performed by the intersection coordinate setting unit 19 will be described later. The intersection coordinates set by the intersection coordinate setting unit 19 are sent to the road information update unit 20. The road information update unit 20 adds the point indicated by the intersection coordinate sent from the intersection coordinate setting unit 19 to the road information stored in the map information storage unit 16a as a new intersection, and holds it in the HDD 16 The road information that is being updated.

  The display device 40 connected to the navigation device 1 is composed of, for example, a liquid crystal display device, and displays a map or a recommended route based on a display map image or recommended route data sent from the display control unit 12. To do. The audio output device 41 is constituted by, for example, a speaker, and outputs audio that provides guidance to the destination according to the recommended route sent from the display control unit 12 or information included in the map information.

  The input device 42 is used for inputting a map area to be displayed on the display device 40, inputting a start point or an end point when calculating a recommended route, or inputting information for specifying an intersection to be added. The input device 42 is set on, for example, an input button installed on a main body panel disposed on the front surface of the navigation device, a remote controller (remote controller) that transmits an input signal equivalent to the input button, and a screen of the display device 40. A touch panel, a voice input microphone for voice operation, or a combination thereof can be used.

  The vehicle speed sensor 43 detects the speed at which the vehicle moves. The speed detected by the vehicle speed sensor 43 is sent to the positioning unit 15. The angular velocity sensor 44 detects its own direction change. The direction change detected by the angular velocity sensor 44 is sent to the positioning unit 15. The GPS receiving antenna 45 receives radio waves transmitted from GPS satellites. A GPS signal obtained by receiving radio waves by the GPS receiving antenna 45 is sent to the positioning unit 15.

  Next, the operation of the map information processing apparatus according to the first embodiment of the present invention configured as described above will be described with reference to the intersection setting process for setting the intersection of the road indicated by the road information as an intersection, as shown in FIG. This will be described with reference to the flowchart shown in FIG. In the intersection setting process, first, an intersection is input (step ST11). That is, the user designates one point on the map displayed on the display device 40 by operating the input device 42. The coordinates of the point designated by the input device 42 are sent to the intersection coordinate setting unit 19 via the input receiving unit 14 as the coordinates of the input point.

  Next, intersection point coordinate calculation processing is performed (step ST12). That is, as shown in FIG. 3, the intersection coordinate setting unit 19 is a predetermined range centered on the coordinates of the input point sent from the input receiving unit 14, for example, existing intersections within the range of the radius d1. The coordinates of the intersections excluding the intersection are calculated as intersection coordinates. Here, the details of the intersection coordinate calculation processing will be described with reference to the flowchart shown in FIG.

  In the intersection coordinate calculation process, first, all links existing within the distance d1 from the coordinates of the input point are acquired (step ST21). Next, the links acquired in step ST21 are sorted in the order of closer distance from the input point (step ST22). Next, among the links sorted in step ST22, the link with the shortest distance is extracted, and it is checked whether the extracted link has an intersection that intersects with another link other than the existing intersection (step ST23). ).

  If it is determined in this step ST23 that there is no intersection with another link, it is then checked whether or not the processing for all the links acquired in step ST21 has been completed (step ST24). If it is determined in step ST24 that the processing for all links has not been completed, the sequence returns to step ST23, and the above-described processing is repeated. On the other hand, if it is determined in step ST23 that the processing for all the links has been completed, it is recognized that there is no intersection near the input point, and an error message is output. When the error message is output, the user can operate the input device 42 again to designate one point on the map displayed on the display device 40.

  If it is determined in step ST23 that the extracted link has an intersection with another link, the coordinates of the intersection are set as the intersection coordinates (step ST25). Thereby, the coordinates of the intersection closest to the input point are adopted as the intersection coordinates. The intersection coordinates calculated by the above intersection coordinate calculation process are sent to the road information update unit 20. Thereafter, the sequence returns to the intersection setting process.

  Next, in the intersection setting process, an intersection creation process is performed (step ST13). Specifically, the road information updating unit 20 performs a process of dividing the link at the point indicated by the intersection coordinate sent from the intersection coordinate setting unit 19. For example, as shown in FIG. 5A, when the intersection of the link 10 and the link 11 is set as the intersection coordinate, as shown in FIG. 5B, a new node N is generated at the intersection and the link 10 is linked. It is divided into 10.1 and link 10.2, and is divided into link 11.1 and link 11.2.

  In this case, as the node ID assigned to the node N, for example, a number of 1000 or more permitted for use by the user is used. With this configuration, it is possible to distinguish the intersection included in the existing road information from the intersection set by the user. Note that the intersection between the existing road information and the intersection set by the user can be distinguished using unused 1 bit in the data constituting the node ID.

  When the intersection creation process ends, a road information update process is then performed (step ST14). That is, the road information update unit 20 writes the intersection created in step ST13 in the map information storage unit 16a of the HDD 16. In the example shown in FIG. 5, the road information update unit 20 deletes the link 10 and the link 11 of the road information stored in the map information storage unit 16a, and the node N, the link 10.1, the link 10.2, Link 11.1 and link 11.2 are added to the road information. Thus, the intersection setting process ends.

  As described above, according to the map information processing apparatus according to the first embodiment of the present invention, when there is an error in the road information included in the map information (for example, it should be an intersection, it becomes an intersection). If a new intersection is created by road construction at a point where the road intersects (intersection), the user can make the intersection by designating the intersection. As a result, since accurate intersection information can be generated, for example, it is possible to avoid the inconvenience that the route searched by the route search is actually a detour.

  In the map information processing apparatus according to the first embodiment described above, the coordinates of one point on the map are input, and input from among the intersections other than the existing intersection formed by the road indicated by the road information. Although the coordinates of the intersection existing within a predetermined range from the coordinates are set as the intersection coordinates, the map information processing apparatus according to Embodiment 1 can be modified as follows for the setting of the intersection coordinates.

  In the map information processing apparatus according to the first modification, the user inputs the coordinates of two points on the map using the input device 42, and the intersection coordinate setting unit 19 acquires the road acquired from the map information storage unit 16a. Of the intersections excluding the existing intersection formed by the road indicated by the information, the coordinates of the intersection existing on a part of the road indicated by the coordinates of the two points input from the input device 42 are set as the intersection coordinates. Specifically, first, as shown in FIG. 6, for example, links in the vicinity of the first input point and the second input point, that is, links existing within a predetermined distance d2 from the first input point and the second input point. Is acquired.

  Next, from the first input point and the second input point, the points at which the perpendicular is put on the acquired link are set as A and B, respectively, and the coordinates of the intersection existing in the line segment AB are calculated. This calculation can be performed as follows. That is, as shown in FIG. 7, first, all links included in the mesh including the line segment AB are acquired. It is then examined whether there is an intersection where the acquired link intersects the line segment AB. And when an intersection exists, the intersection is set as an intersection coordinate. In the example shown in FIG. 7, an intersection point C exists, and the intersection point C is set as an intersection coordinate.

  In the map information processing apparatus according to the second modification, the user inputs the coordinates of a plurality of points on the map using the input device 42, and the intersection coordinate setting unit 19 acquires the road acquired from the map information storage unit 16a. Of the intersections of the road indicated by the information, the coordinates of the points existing in the area indicated by the coordinates of the plurality of points input from the input device 42 are set as the intersection coordinates. Specifically, first, for example, as shown in FIG. 8, a link existing in a rectangle formed by the first input point and the second input point is acquired. Then, it is checked whether or not an intersection exists in the acquired link. And when an intersection exists, the intersection is set as an intersection coordinate. Note that the area formed by the two input points is not limited to a rectangle, but may be an arbitrary shape. Further, the number of input points that define the area is not limited to two, but may be three or more.

  In the map information processing apparatus according to the third modification, the user inputs the coordinates of one point on the map using the input device 42, and the intersection coordinate setting unit 19 uses the coordinates input from the input device 42. Select a road that exists within a predetermined range. Next, all intersections of the selected road are calculated, and the calculated list of intersections is displayed on the display device 40 to the user. The list of intersections can be scrolled by giving an instruction from the input device 42. When the user selects an intersection displayed on the display device 40 by using the input device 42, the coordinates of the selected intersection are set as the intersection coordinates.

  In the map information processing apparatus according to the fourth modification, the user displays the input device 42 on the screen of the display device 40 with the road list displayed on the left side and the map displayed on the right side as shown in FIG. The intersection coordinate setting unit 19 calculates all the intersections of the designated road and displays the calculated intersection list on the display device 40 to the user. The list of intersections can be scrolled by giving an instruction from the input device 42. When the user selects the intersection displayed on the display device 40 with the input device 42, the coordinates of the selected intersection are set as the intersection coordinates.

Embodiment 2. FIG.
In the map information processing apparatus according to Embodiment 2 of the present invention, an intersection between a new road registered by a user and an existing road indicated by road information is added to the road information as a new intersection.

  FIG. 10 is a block diagram showing the configuration of the map information processing apparatus according to Embodiment 2 of the present invention. In this map information processing apparatus, a new road detection unit 22, a new road generation unit 23, and a new road management unit 24 are added to the navigation apparatus 1 of the map information processing apparatus according to the first embodiment, and a new road is added to the HDD 16. An information storage unit 16b is added, and the function of the intersection coordinate setting unit 19 is changed.

  When traveling on a road that does not exist in the map information stored in the map information storage unit 16a at the time of shipment, the new road information storage unit 16b stores new road information representing the road. The new road detection unit 22 compares the road information included in the map information sent from the map information storage unit 16a of the HDD 16 via the HDD access unit 17 with the position information sent from the positioning unit 15. A new road that does not exist in the road information is detected, and the history of traveling on the detected new road is sent to the new road generation unit 23 as new road travel history information.

  The new road generation unit 23 generates new road information from the new road travel history information sent from the new road detection unit 22, and stores the new road information in the new road information storage unit 16b. In addition, when the generation of new road information is completed, the new road generation unit 23 issues a road information update request to the road information update unit 20. In response to this update request, the road information update unit 20 updates the map information and new road information inside the HDD 16 based on the road update information generated by the new road generation unit 23. The new road management unit 24 manages the new road information accumulated in the new road information storage unit 16b.

  The intersection coordinate setting unit 19 acquires the road indicated by the road information acquired from the map information storage unit 16a and the new road information storage unit 16b based on the data transmitted from the input device 42 via the input reception unit 14. A point excluding an existing intersection formed by a new road, that is, the coordinates of the intersection are set as the intersection coordinates. The intersection coordinates set by the intersection coordinate setting unit 19 are sent to the road information update unit 20.

  The operation of the map information processing apparatus according to Embodiment 2 of the present invention configured as described above uses the coordinates of the intersection between the existing road and the new road as the intersection coordinates set by the intersection coordinate setting unit 19. Except for this point, the operation is the same as that of the map information processing apparatus according to Embodiment 1 described above. The first to fourth modifications of the map information processing apparatus according to the first embodiment can also be applied to the map information processing apparatus according to the second embodiment.

Embodiment 3 FIG.
The map information processing apparatus according to Embodiment 3 of the present invention is capable of setting intersection traffic restrictions newly added to road information.

  FIG. 11 is a block diagram showing a configuration of a map information processing apparatus according to Embodiment 3 of the present invention. This map information processing apparatus is configured by adding a traffic restriction setting unit 25 to the navigation apparatus 1 of the map information processing apparatus according to Embodiment 1 and changing the function of the road information updating unit 20.

  For example, in the case of an intersection where four links 1 to 4 are connected to one node A as shown in FIG. 12A, the traffic restriction enters the node A as shown in FIG. 12B. It is defined by a traffic restriction table that indicates whether or not traffic between a link (IN) and a link (OUT) exiting from the node A is permitted. In the example of the traffic restriction table shown in FIG. 12B, for example, when entering the node A from the link 1, exiting from the link 1, that is, making a U-turn at the node A is prohibited. 4 indicates that it is allowed to go straight, turn right and turn left at node A.

  When a new intersection is added, the traffic restriction table may allow (O) or disable (X) traffic to enter the intersection from all directions and exit in all directions, or As shown in FIG. 12 (b), it can be configured such that only the U-turn is disabled. The contents of this traffic regulation table can be changed by the user.

  The traffic regulation setting unit 25 sets traffic regulation at the intersection. That is, when a new intersection is added, the traffic regulation setting unit 25 displays a traffic regulation setting menu in which the traffic direction and the regulation content are paired as shown in FIG. The user can change the restriction content of the traffic restriction setting menu from “impossible” to “permitted” or “permitted” to “impossible” using the input device 42. The content changed using this traffic regulation setting menu is reflected in the traffic regulation table. The traffic regulation set by the traffic regulation setting unit 25, that is, the content of the traffic regulation table is sent to the road information update unit 20.

  The road information update unit 20 stores the point indicated by the intersection coordinates set by the intersection coordinate setting unit 19 in the map information storage unit 16a of the HDD 16 as an intersection having the traffic regulation set by the traffic regulation setting unit 25. Add to the road information you have.

  In the example described above, the traffic regulation is configured to be manually set by the user using the input device 42. However, the traffic regulation is automatically set according to the intersection angle between the road and the road. Can do. FIG. 14 is a flowchart showing a process of automatically setting traffic restrictions according to the intersection angle. This process is executed by the traffic regulation setting unit 25.

  In the process of automatically setting traffic restrictions according to the intersection angle, first, the link-link connection angle in one link combination is acquired (step ST31). That is, the traffic regulation setting unit 25 reads road information corresponding to one link combination from the map information storage unit 16a, and calculates a connection angle from link position information indicated by the read road information.

  Next, it is checked whether or not the connection angle acquired in step ST31 is a predetermined value or less (step ST32). If it is determined in step ST32 that the connection angle is equal to or smaller than the predetermined value, the content of the traffic restriction is set to “impossible” (step ST33). Thereafter, the sequence proceeds to step ST35. On the other hand, when it is determined in step ST32 that the connection angle is not equal to or smaller than the predetermined value, the content of the traffic restriction is set to “permitted” (step ST34). Thereafter, the sequence proceeds to step ST35.

  In step ST35, it is checked whether or not processing for all link combinations has been completed. If it is determined that the processing for all the combinations of links has not ended, the sequence returns to step ST31 and the above-described processing is repeated. On the other hand, when it is determined in step ST35 that the processing for all the combinations of links has been completed, the processing for automatically setting the traffic regulation according to the intersection angle ends. According to the above configuration, the traffic direction that advances at an acute angle at the intersection can be automatically regulated, so that it is possible to save the user from setting the traffic regulation.

  In addition, the traffic regulation can be automatically set according to the attribute of the road. As a road attribute, for example, a road type such as a general road or a highway can be used. FIG. 15 is a flowchart showing a process for automatically setting traffic restrictions according to road attributes. This process is executed by the traffic regulation setting unit 25.

  In the process of automatically setting traffic restrictions according to the road attributes, first, road types of two links to be processed are acquired (step ST41). That is, the traffic regulation setting unit 25 reads road information corresponding to two links from the map information storage unit 16a, and acquires a road type indicated by the read road information. Next, it is checked whether or not the road types acquired in step ST41 are the same (step ST42).

  If it is determined in step ST42 that the road types are the same, the content of the traffic restriction is set to “permitted” (step ST43). Thereafter, the process of automatically setting traffic restrictions according to the road attributes ends. On the other hand, if it is determined in step ST42 that the road types are not the same, the content of the traffic restriction is set to “impossible” (step ST44). Thereafter, the process of automatically setting traffic restrictions according to the road attributes ends. According to the above configuration, the direction of traffic to roads with the same road type can be automatically excluded from the target of restriction, and other roads can be subject to restriction, thus saving the user from setting traffic restrictions. Can do.

Embodiment 4 FIG.
The map information processing apparatus according to Embodiment 4 of the present invention stores a travel history, and sets traffic restrictions based on the stored travel history.

  FIG. 16 is a block diagram showing a configuration of the map information processing apparatus according to Embodiment 4 of the present invention. This map information processing apparatus is configured by adding a travel history storage unit 26 to the navigation apparatus 1 of the map information processing apparatus according to Embodiment 3 and changing the function of the traffic regulation setting unit 25.

  The travel history storage unit 26 sequentially stores links and nodes corresponding to the current position sent from the positioning unit 15 and accumulates them as a travel history. The travel history stored in the travel history storage unit 26 is read by the traffic regulation setting unit 25. The traffic regulation setting unit 25 searches for an intersection newly added by the user based on the travel history stored in the travel history storage unit 26, and sets the traffic regulation of the searched intersection.

  FIG. 17 is a flowchart showing a traffic restriction setting process performed by the map information processing apparatus according to Embodiment 4 of the present invention. In the traffic restriction setting process, first, an intersection added by the user is searched from the travel history (step ST51). That is, the traffic regulation setting unit 25 searches the travel history stored in the travel history storage unit 26 for a node corresponding to the intersection added by the user. Whether or not the node corresponds to the added intersection can be determined based on whether or not the node ID assigned to the node is a number of 1000 or more, as described in the first embodiment.

  Next, links before and after the searched node are acquired (step ST52). That is, the link used when entering the node searched in step ST51 and the link used when leaving the node are acquired from the travel history stored in the travel history storage unit 26. Next, the traffic restriction is set to “permitted” (step ST53). That is, the traffic restriction from the link used when entering the node to the link used when leaving the node is set to “permitted”.

Next, it is checked whether or not all the travel histories have been searched (step ST54). If it is determined in step ST54 that the search of all travel histories has not been completed, the sequence returns to step ST51 and the above-described operation is repeated. On the other hand, when it is determined in step ST54 that the search of all travel histories has been completed, the traffic regulation setting process is terminated.
The travel history storage unit 26 may not be provided in the navigation device, and may store the history of a plurality of cars with a sensor (server) and use the history.

Embodiment 5. FIG.
In the map information processing apparatus according to Embodiment 5 of the present invention, when the road that forms the newly added intersection is one of the vertical line separation roads, the intersection with the other separated road is also set as the intersection Thus, an intra-intersection link that connects the intersections is formed.

  FIG. 18 is a block diagram showing a configuration of a map information processing apparatus according to Embodiment 5 of the present invention. This map information processing apparatus is configured by adding a vertical line separation road determination unit 27 to the navigation apparatus 1 of the map information processing apparatus according to Embodiment 1 and changing the function of the road information update unit 20. Yes.

  When the intersection coordinate setting unit 19 calculates an intersection coordinate and a newly added intersection is determined, the vertical line separation road determination unit 27 determines whether the road connected to the intersection is a vertical line separation road. If this judgment result indicates that the road is a vertical line separation road, it is determined whether or not there is an intersection with the opposite road that is paired with the road, and if there is an intersection, the intersection To the road information update unit 20 as intersection coordinates.

  The road information update unit 20 stores the map information as a new intersection by using the point indicated by the intersection coordinate sent from the intersection coordinate setting unit 19 and the point indicated by the intersection coordinate sent from the vertical line separation road determination unit 27. In addition to the road information stored in the unit 16a, an intra-intersection link connecting these two points is generated and added to the road information stored in the map information storage unit 16a. Update the stored road information.

  Next, intersection coordinate calculation processing (corresponding to processing performed in step ST12 of FIG. 2) and intersection creation processing (FIG. 2) in the intersection setting processing performed by the map information processing apparatus according to Embodiment 5 of the present invention. Will be described with reference to the flowchart shown in FIG. 19 and the explanatory diagram shown in FIG. In the intersection coordinate calculation process, it is assumed that at least one intersection coordinate has already been calculated by the process shown in FIG. 4 and is held as an intersection (node) set by the user.

  In the intersection setting process, first, all the links connected to the intersection (node) set by the user are acquired (step ST61). That is, the vertical line separation road determination unit 27 acquires all links connected to the intersection indicated by the already calculated intersection coordinates. For example, if the node A shown in FIG. 20A is an intersection (node) set by the user, all links 1 to 4 connected to the node A are acquired.

  Next, it is checked whether or not the acquired link is a link of a vertical line separation road (step ST62). That is, the vertical line separation road determination unit 27 checks whether the link is a link of the vertical line separation road based on the road data read from the map information storage unit 16a. In the example shown in FIG. 20A, the link 2 and the link 3 are links of the vertical line separation road. If it is determined in step ST62 that the link is not a vertical line separation road, the sequence proceeds to step ST67.

  On the other hand, if it is determined in step ST62 that the link is a vertical line separation road, then it is a link of a vertical line separation road in the vicinity of the link determined to be a vertical line separation road link in step ST62. Thus, the reverse link is acquired (step ST63). In the example shown in FIG. 20A, the link 5 is acquired.

  Next, it is checked whether or not there is an intersection of the reverse link acquired in step ST63 and any of all the links acquired in step ST61 (step ST64). FIG. 20A shows an example in which there is an intersection of link 1 and link 5. If it is determined in step ST64 that there is no intersection, the sequence returns to step ST62, and the above-described processing is repeated. On the other hand, when it is determined in step ST64 that there is an intersection, the intersection is set as an intersection (step ST65). That is, the vertical line separation road determination unit 27 sends the intersection coordinates as intersection coordinates to the road information update unit 20, and the road information update unit 20 generates an intersection based on the received intersection coordinates. Thereby, for example, as shown in FIG. 20B, the intersection is set as the intersection of the node B.

  Next, a link that connects the intersection set in step ST65 and the intersection set by the user is generated as an intra-intersection link (step ST66). That is, as shown in FIG. 20B, the road information update unit 20 divides the link 4 into the intra-intersection link 4.1 and the link 4.2, and the link 5 with the link 5.1. Divide into 5.2. The processes in step ST65 and step ST66 correspond to the intersection creation process shown in FIG.

  Next, it is checked whether or not the processing for all links has been completed (step ST67). If it is determined in step ST67 that the processing for all links has not been completed, the sequence returns to step ST62, and the above-described processing is repeated. On the other hand, when it is determined in step ST67 that the processing for all the links has been completed, the intersection setting processing ends.

Embodiment 6 FIG.
In the map information processing apparatus according to Embodiment 6 of the present invention, a new intersection set by the user is displayed on a map in such a manner that it is distinguished from existing intersections. The configuration of the map information processing apparatus according to the sixth embodiment is the same as the configuration of the map information processing apparatus according to the first embodiment shown in FIG.

  FIG. 21 is a diagram illustrating an example of a map displayed on the display device 40 by the map information display device according to the sixth embodiment. In this map, icons are displayed at the intersections set by the user to distinguish them from existing intersections.

  FIG. 22 is a flowchart showing the operation of the map information display apparatus according to the sixth embodiment, centering on map display processing. In the map display process, first, it is checked whether or not an intersection set by the user exists in the display area (step ST71). That is, the display map calculation unit 10 acquires road information corresponding to the display area of the display device 40 from the map information storage unit 16a, and the acquired road information includes the new intersection added by the road information update unit 20. Find out if you can.

  If it is determined in step ST71 that there is no intersection set by the user in the display area, normal map display is performed (step ST72). That is, the display map calculation unit 10 generates a map image for display from map information sent from the map information storage unit 16 a of the HDD 16 via the HDD access unit 17, and displays the display device 40 via the display control unit 12. Send to. Thereby, a normal map is displayed on the screen of the display device 40.

  On the other hand, if it is determined in step ST71 that an intersection set by the user exists in the display area, a map display in which a predetermined icon is displayed at the intersection set by the user is performed (step ST73). That is, the display map calculation unit 10 displays the icon at the intersection set by the user among the intersections indicated by the road information included in the map information sent from the map information storage unit 16a of the HDD 16 via the HDD access unit 17. Is generated and sent to the display device 40 via the display control unit 12. Accordingly, a map that displays the intersection set by the user as distinguished from the existing intersection as shown in FIG. 21 is displayed on the screen of the display device 40.

  In the map information processing apparatus according to Embodiment 6 described above, when a map is displayed, the intersection set by the user is displayed separately from the existing intersection, but the intersection guide map is displayed. In this case, the intersection set by the user may be displayed so as to be distinguished from the existing intersection.

  FIG. 23 is a diagram illustrating an example of an intersection guide map displayed on the display device 40 of the map information processing apparatus according to the modification of the sixth embodiment. A map showing the route searched by the route calculation unit 11 is displayed on the left half of the screen, and an enlarged view of the intersection and a course direction are displayed on the right half of the screen. On both screens, icons are displayed at intersections set by the user, and are distinguished from existing intersections.

  FIG. 24 is a flowchart showing the operation of the map information display apparatus according to the modification of the sixth embodiment, centering on the intersection guide map display processing. In the intersection guide map display process, first, it is checked whether or not an intersection set by the user exists in the display area (step ST81). That is, the display map calculation unit 10 acquires road information corresponding to the display area of the display device 40 from the map information storage unit 16a, and the acquired road information includes the new intersection added by the road information update unit 20. Find out if you can.

  If it is determined in step ST81 that there is no intersection set by the user in the display area, normal intersection guide map display is performed (step ST82). That is, the display map calculation unit 10 generates a map image and an intersection guide image from the map information sent from the map information storage unit 16a of the HDD 16 via the HDD access unit 17, and displays the display device via the display control unit 12. Send to 40. Thereby, a normal map is displayed on the left half of the screen of the display device 40, and an enlarged view of the intersection is displayed on the right half.

  On the other hand, when it is determined in step ST81 that there is an intersection set by the user in the display area, an intersection guide map display in which a predetermined icon is displayed at the intersection set by the user is performed (step ST83). . That is, the display map calculation unit 10 displays the icon at the intersection set by the user among the intersections indicated by the road information included in the map information sent from the map information storage unit 16a of the HDD 16 via the HDD access unit 17. A map image and an intersection guide image are generated and sent to the display device 40 via the display control unit 12. As a result, an intersection guide map for distinguishing and displaying the intersection set by the user from the existing intersection as shown in FIG. 23 is displayed on the screen of the display device 40.

Embodiment 7 FIG.
A map information processing apparatus according to Embodiment 7 of the present invention displays traffic restrictions set by a user on a map. The configuration of the map information processing apparatus according to the seventh embodiment is the same as that of the map information processing apparatus according to the third embodiment shown in FIG.

  FIG. 25 is a diagram illustrating an example of a map on which traffic restrictions displayed on the display device 40 are displayed by the map information display device according to the seventh embodiment. In this map, icons are displayed at the intersections set by the user to distinguish them from existing intersections, and the directions in which they can pass are displayed as traffic restrictions.

  FIG. 26 is a flowchart showing the operation of the map information display apparatus according to the seventh embodiment with a focus on map display processing. In the map display process, first, it is checked whether or not there is a traffic restriction set by the user in the display area (step ST91). That is, the display map calculation unit 10 acquires the road information corresponding to the display area of the display device 40 from the map information storage unit 16a, and the acquired road information includes the traffic regulation set by the traffic regulation setting unit 25. Find out if you can.

  If it is determined in step ST91 that there is no traffic restriction set by the user in the display area, normal map display is performed (step ST92). That is, the display map calculation unit 10 generates a map image for display from map information sent from the map information storage unit 16 a of the HDD 16 via the HDD access unit 17, and displays the display device 40 via the display control unit 12. Send to. Thereby, a normal map is displayed on the screen of the display device 40.

  On the other hand, if it is determined in step ST91 that there is a traffic restriction set by the user in the display area, a map display displaying the traffic restriction set by the user is performed (step ST93). That is, the display map calculation unit 10 generates a map image including the traffic restriction of the intersection indicated by the road information included in the map information sent from the map information storage unit 16a of the HDD 16 via the HDD access unit 17, The data is sent to the display device 40 via the display control unit 12. Thereby, a map on which the traffic restriction set by the user is displayed as shown in FIG. 25 is displayed on the screen of the display device 40.

  In the map information processing apparatus according to the seventh embodiment described above, when the map is displayed, the traffic restriction set by the user is displayed. However, when the intersection guide map is displayed, the user It is also possible to change to display the traffic regulation set by.

  FIG. 27 is a diagram illustrating an example of an intersection guide map displayed on the display device 40 of the map information processing apparatus according to the modification of the seventh embodiment. A map showing the route searched by the route calculation unit 11 is displayed on the left half of the screen, and an enlarged view of the intersection and a course direction are displayed on the right half of the screen. Both screens display the traffic restrictions set by the user.

  FIG. 28 is a flowchart showing the operation of the map information display device according to the modification of the seventh embodiment, centering on the intersection guide map display processing. In the intersection guide map display process, first, it is checked whether or not there is a traffic restriction set by the user in the display area (step ST101). That is, the display map calculation unit 10 acquires the road information corresponding to the display area of the display device 40 from the map information storage unit 16a, and the acquired road information includes the traffic regulation set by the traffic regulation setting unit 25. Find out if you can.

  If it is determined in step ST101 that there is no traffic restriction set by the user in the display area, normal intersection guide map display is performed (step ST102). That is, the display map calculation unit 10 generates a map image and an intersection guide image from the map information sent from the map information storage unit 16a of the HDD 16 via the HDD access unit 17, and displays the display device via the display control unit 12. Send to 40. Thereby, a normal map is displayed on the left half of the screen of the display device 40, and an enlarged view of the intersection is displayed on the right half.

  On the other hand, when it is determined in step ST101 that there is a traffic restriction set by the user in the display area, an intersection guide map display that displays the traffic restriction set by the user is performed (step ST103). That is, the display map calculation unit 10 includes a map image and an intersection guidance image including traffic restrictions on intersections indicated by road information included in the map information sent from the map information storage unit 16a of the HDD 16 via the HDD access unit 17. Is sent to the display device 40 via the display control unit 12. As a result, an intersection guide map for displaying the traffic restrictions set by the user as shown in FIG. 27 is displayed on the screen of the display device 40.

Embodiment 8 FIG.
The map information processing apparatus according to the eighth embodiment of the present invention is such that an intersection set by a user can be deleted and restored.

  FIG. 29 is a block diagram showing a configuration of a map information processing apparatus according to Embodiment 8 of the present invention. This map information processing apparatus is configured by adding a set intersection storage unit 28 and a set intersection management unit 29 to the navigation apparatus 1 of the map information processing apparatus according to the first embodiment.

  The set intersection storage unit 28 stores the intersection indicated by the intersection coordinates set by the intersection coordinate setting unit 19. FIG. 30 is a diagram illustrating an example of an intersection stored in the set intersection storage unit 28, and the intersection is designated by a pair of intersection IDs and node IDs. When deleting an intersection, since the content stored in the set intersection storage unit 28 is displayed on the display device 40, the user selects a pair of intersection ID and node ID using the input device 42. Specify the desired intersection.

  The set intersection management unit 29 deletes the intersection designated by the input device 42 from the road information stored in the map information storage unit 16a among the intersections stored in the set intersection storage unit 28. Now, for example, the node ID = 1009 in the set intersection storage unit 28 is selected, and the intersection having the node ID = 1009 is linked to the node with the node ID = 11009 as shown in FIG. 1, link 10.2, link 11.1, and link 11.2 are connected, the set intersection management unit 29 deletes the node with the node ID = 11009 and links 10.1 and 10. .2 is connected to generate link 10, and link 11.1 and link 11.2 are connected to generate link 11. Thereby, the intersection set by the user is deleted and returned to the original road information. Note that the set intersection management unit 29 can be configured not to delete the node having the node ID = 1009 but to be an invalid node.

It is a block diagram which shows the structure of the map information processing apparatus which concerns on Embodiment 1 of this invention. It is a flowchart which shows operation | movement of the map information processing apparatus which concerns on Embodiment 1 of this invention centering on an intersection setting process. It is a figure for demonstrating calculation of the intersection coordinate in the map information processing apparatus which concerns on Embodiment 1 of this invention. It is a flowchart which shows the detail of the intersection coordinate calculation process performed in the map information processing apparatus concerning Embodiment 1 of this invention. It is a figure for demonstrating the intersection creation process in the map information processing apparatus concerning Embodiment 1 of this invention. It is a figure for demonstrating the calculation (the 1) of an intersection coordinate in the map information processing apparatus which concerns on the 1st modification of Embodiment 1 of this invention. It is a figure for demonstrating the calculation (the 2) of an intersection coordinate in the map information processing apparatus which concerns on the 1st modification of Embodiment 1 of this invention. It is a figure for demonstrating calculation of the intersection coordinate in the map information processing apparatus which concerns on the 2nd modification of Embodiment 1 of this invention. It is a figure for demonstrating calculation of the intersection coordinate in the map information processing apparatus which concerns on the 4th modification of Embodiment 1 of this invention. It is a block diagram which shows the structure of the map information processing apparatus which concerns on Embodiment 2 of this invention. It is a block diagram which shows the structure of the map information processing apparatus concerning Embodiment 3 of this invention. It is a figure for demonstrating the traffic regulation performed with the map information processing apparatus concerning Embodiment 3 of this invention. It is a figure which shows the example of the traffic regulation setting menu used with the map information processing apparatus concerning Embodiment 3 of this invention. It is a flowchart which shows the process for setting the traffic regulation performed with the map information processing apparatus which concerns on Embodiment 3 of this invention according to an intersection angle. It is a flowchart which shows the process for setting the traffic regulation performed with the map information processing apparatus which concerns on Embodiment 3 of this invention according to the attribute of a road. It is a block diagram which shows the structure of the map information processing apparatus concerning Embodiment 4 of this invention. It is a flowchart which shows the traffic regulation setting process performed with the map information processing apparatus concerning Embodiment 4 of this invention. It is a block diagram which shows the structure of the map information processing apparatus concerning Embodiment 5 of this invention. It is a flowchart which shows the intersection coordinate calculation process in the intersection setting process performed by the map information processing apparatus concerning Embodiment 5 of this invention, and an intersection creation process. It is a figure for demonstrating the intersection coordinate calculation process in the intersection setting process performed by the map information processing apparatus concerning Embodiment 5 of this invention, and an intersection creation process. It is a figure which shows the example of the map displayed on a display apparatus by the map information display apparatus which concerns on Embodiment 6 of this invention. It is a flowchart which shows operation | movement of the map information display apparatus which concerns on Embodiment 6 of this invention centering on map display processing. It is a figure which shows the example of the intersection guide map displayed on a display apparatus by the map information display apparatus which concerns on the modification of Embodiment 6 of this invention. It is a flowchart which shows operation | movement of the map information display apparatus which concerns on the modification of Embodiment 6 of this invention centering on an intersection guide map display process. It is a figure which shows the example of the map by which the traffic regulation displayed on a display apparatus by the map information display apparatus which concerns on Embodiment 7 of this invention was displayed. It is a flowchart which shows operation | movement of the map information display apparatus which concerns on Embodiment 7 of this invention centering on map display processing. It is a figure which shows the example of the intersection guide map displayed on a display apparatus by the map information display apparatus which concerns on the modification of Embodiment 7 of this invention. It is a flowchart which shows operation | movement of the map information display apparatus which concerns on the modification of Embodiment 7 of this invention centering on an intersection guide map display process. It is a block diagram which shows the structure of the map information processing apparatus concerning Embodiment 8 of this invention. It is a figure which shows the example of the intersection memorize | stored in the setting intersection memory | storage part of the map information processing apparatus concerning Embodiment 8 of this invention. It is a figure for demonstrating the process which deletes the intersection set by the user in the map information processing apparatus concerning Embodiment 8 of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Navigation apparatus, 10 Display map calculation part, 11 Route calculation part, 12 Display control part, 13 Voice output control part, 14 Input reception part, 15 Positioning part, 16 HDD, 16a Point information storage part, 16b New road information storage part , 17 HDD access unit, 18 temporary storage memory unit, 19 intersection coordinate setting unit, 20 road information update unit, 21 central control unit, 22 new road detection unit, 23 new road generation unit, 24 new road management unit, 25 traffic regulation A setting unit, a traveling history storage unit, a vertical line separation road determination unit, a set intersection storage unit, and a set intersection management unit.

Claims (19)

A map information storage unit for storing map information including road information;
An intersection coordinate setting unit that sets the coordinates of an intersection other than an existing intersection formed by the road indicated by the road information acquired from the map information storage unit as an intersection coordinate;
A map information processing apparatus comprising a road information update unit that adds a point indicated by an intersection coordinate set by the intersection coordinate setting unit as a new intersection to road information stored in the map information storage unit. Position detecting means for detecting its own position;
When the road corresponding to the position detected by the position detection means does not exist in the road information acquired from the map information storage unit, the road is detected as a new road, and the history of traveling on the detected new road A new road detector that generates new road travel history information representing
A new road generation unit that generates new road information based on the new road travel history information generated by the new road detection unit;
A new road information storage unit for storing new road information generated by the new road generation unit,
The intersection coordinate setting unit is an intersection except for an existing intersection formed by a road indicated by road information acquired from the map information storage unit and a road indicated by new road information acquired from the new road information storage unit. The map information processing apparatus according to claim 1, wherein coordinates are set as intersection coordinates. A set intersection storage unit that stores an intersection indicated by the intersection coordinates set by the intersection coordinate setting unit;
The map information processing apparatus according to claim 1, further comprising: a set intersection management unit that deletes an intersection stored in the set intersection storage unit from road information stored in the map information storage unit. . It has an input device for inputting the coordinates of one point on the map,
The intersection coordinate setting unit includes coordinates of intersections existing within a predetermined range from the coordinates input from the input device among intersections excluding existing intersections formed by roads indicated by the road information acquired from the map information storage unit. The map information processing apparatus according to claim 1, wherein the map information processing apparatus is set as an intersection coordinate. It has an input device that inputs the coordinates of two points on the map,
The intersection coordinate setting unit is a part of the road indicated by the coordinates of the two points input from the input device among the intersections excluding the existing intersection formed by the road indicated by the road information acquired from the map information storage unit The map information processing apparatus according to claim 1, wherein coordinates of intersections existing in the map are set as intersection coordinates. It has an input device to input the coordinates of multiple points on the map,
The intersection coordinate setting unit exists in an area indicated by the coordinates of a plurality of points input from the input device among the intersections excluding an existing intersection formed by the road indicated by the road information acquired from the map information storage unit. The map information processing apparatus according to claim 1, wherein the coordinates of the intersection are set as intersection coordinates. It has an input device to select the road shown on the map,
The intersection coordinate setting unit converts the coordinates of the intersection existing on the road selected by the input device from the intersections other than the existing intersection formed by the road indicated by the road information acquired from the map information storage unit. The map information processing apparatus according to claim 1, wherein the map information processing apparatus is set as follows. An input device for selecting a road shown on the map;
The intersection coordinate setting unit calculates, as an intersection candidate, an intersection existing on the road designated by the input device among the intersections excluding an existing intersection formed by the road indicated by the road information acquired from the map information storage unit The map information processing apparatus according to claim 1, wherein coordinates of at least one intersection selected by the input device from the calculated intersection candidates are set as intersection coordinates. It has a traffic regulation setting part that sets traffic regulation at intersections,
The road information updating unit uses the point indicated by the intersection coordinates set by the intersection coordinate setting unit as road intersections stored in the map information storage unit as intersections having the traffic regulation set by the traffic regulation setting unit. The map information processing apparatus according to claim 1, wherein the map information processing apparatus is added. The map information processing apparatus according to claim 9, wherein the traffic restriction set by the traffic restriction setting unit is capable of passing from all directions to the intersection and exiting in all directions. The map information processing apparatus according to claim 9, wherein the traffic regulation setting unit sets traffic regulation according to an intersection angle between a road and a road. The map information processing apparatus according to claim 9, wherein the traffic regulation setting unit sets traffic regulation according to an attribute of the intersecting road. Position detecting means for detecting its own position;
A travel history storage unit that stores the positions sequentially detected by the position detection unit as a travel history;
The map information processing apparatus according to claim 9, wherein the traffic regulation setting unit sets traffic regulation based on a travel history stored in the travel history storage unit. When there are a plurality of intersections excluding an existing intersection formed by the road indicated by the road information acquired from the map information storage unit within a predetermined range from the coordinates input from the input device, the intersection coordinate setting unit 5. The map information processing apparatus according to claim 4, wherein coordinates of at least one intersection selected by the input device from a plurality of intersections are set as intersection coordinates. When the road connected to the intersection indicated by the intersection coordinates set by the intersection coordinate setting unit is a vertical line separation road, the vertical line that sets the intersection with the road in the opposite direction that is paired with the road as the intersection coordinate A separation road determination unit
The road information update unit sets the point indicated by the intersection coordinate set by the vertical line separation road determination unit as a new intersection, and the point indicated by the intersection coordinate set by the intersection coordinate setting unit and the vertical line The map information according to claim 1, wherein a link connecting a point indicated by the intersection coordinates set by the separation road determination unit is added to the road information stored in the map information storage unit as an intra-intersection link. Processing equipment. When the intersection included in the road information acquired from the map information storage unit is a new intersection added by the road information update unit, a display map calculation unit that generates a map that displays the intersection separately from the existing intersection;
The map information processing apparatus according to claim 1, further comprising: a display device that displays a map generated by the display map calculation unit. A route calculation unit that searches for a route from the departure point to the destination based on the map information stored in the map information storage unit;
When generating an intersection guide map for guiding to a destination along the route searched by the route calculation unit, an intersection included in the road information acquired from the map information storage unit is added by the road information update unit If it is a new intersection, a display map calculation unit that generates an intersection guide map for distinguishing and displaying the intersection from an existing intersection;
The map information processing apparatus according to claim 1, further comprising a display device that displays the intersection guide map generated by the display map calculation unit. A display map calculation unit that generates a map including a display of traffic control at the intersection set in the traffic control setting unit;
The map information processing apparatus according to claim 9, further comprising a display device configured to display a map generated by the display map calculation unit. A route calculation unit that searches for a route from the departure point to the destination based on the map information stored in the map information storage unit;
When generating an intersection guide map for guiding to a destination along the route searched by the route calculation unit, an intersection guide map including a traffic restriction display at the intersection set by the traffic restriction setting unit is generated. Display map calculator,
The map information processing apparatus according to claim 9, further comprising a display device that displays the intersection guide map generated by the display map calculation unit.

Images