JP2012037455A - On-vehicle navigation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an "on-vehicle navigation device" displaying, in an easy-to-grasp state, that facilities located on an opposite lane side of a road obtained through retrieval can be reached while avoiding the median strip.SOLUTION: The on-vehicle navigation device can retrieve facilities located along roads corresponding to a set route (S15) and includes display control means (S24) for displaying marks showing the facilities obtained by the retrieval separately on the travel lane side and opposite lane side of the roads on a display part together with the roads. Further, the on-vehicle navigation device has median strip information acquisition means (S16) for acquiring median strip information, and the display control means is configured to display an image showing the median strip on the road displayed on the display part based upon the median strip information acquired by the median strip acquisition means.

Description

  The present invention relates to an in-vehicle navigation device capable of searching for facilities located along a set route.

  Conventionally, a navigation device has been proposed in which a route to a destination is set and a facility located along the route can be searched. For example, this navigation device described in Patent Document 1 acquires target information that exists along a guide route (route), and determines the left-right relationship and the perspective relationship from the current position of each target to the guide route. The identification mark of the target existing on the left and right sides of the guidance route (route) is located in the left display area and the right display area, respectively, and the identification mark in each display area is approached from the current position from the inside to the outside. They are displayed in order in the horizontal direction. And the identification mark of the target object in which the obstruction which prevents crossing, such as a median strip, exists is displayed so that it may become inconspicuous compared with the thing of another target object.

  Further, in the along-line object display device described in the cited document 2, navigation data including road information around the vehicle and facility data indicating the position of the vehicle surrounding facility are acquired as map information based on the current position of the vehicle. For each individual facility included in the facility data, the drop-in determination unit determines the ease of dropping-off, which indicates the ease of dropping-in on the facility. The display form for each facility is determined so that it is forcibly displayed rather than the facility judged to be difficult. And it is judged that the facility located along the opposite lane side of the road having the median strip is difficult to stop by.

JP 2006-242810 A JP 2006-313088 A

  The navigation device described in Patent Document 1 and the roadside object display device described in Patent Document 2 are provided for the facility located along the opposite lane side of the road where the median strip is installed. The display form is controlled so that it can be understood that crossing is hindered by this and that it is difficult to stop by. For this reason, the user decides the facility to stop by recognizing that it is difficult to stop for facilities located on the opposite lane side of the road that is prevented from crossing by the median strip by viewing the display content. be able to.

  By the way, even if the facility is located on the opposite lane side of the road where the median strip is installed, it is not always difficult to stop if it is a facility facing the median strip break. Depending on the distance, the degree of difficulty in stopping by will also change. However, in the conventional apparatus, it is impossible to grasp the degree of difficulty of visiting the facility located on the opposite lane side of the road where the median strip is installed from the display content. For this reason, even in the case where it is urgent, a situation may occur in which a facility located on the farther lane side where the required time is actually required is decided as a stop-in facility.

  This invention is made in view of such a situation, and provides the vehicle-mounted navigation apparatus which can represent about the degree of difficulty of stopping to the facility located in the opposite lane side of the road where the median strip is installed. is there.

  The in-vehicle navigation device according to the present invention can search for a facility located along a road corresponding to a route set as a route on which the vehicle should travel, and a mark indicating the facility obtained by the search is the road. A navigation device having display control means for displaying on the display unit together with the road divided into a traveling lane side and an oncoming lane side, and information regarding a median installed on the road corresponding to the route, It has a median strip information acquisition unit that acquires median strip information including at least information indicating the installation position of the median strip, and the display control unit is configured to acquire the median strip obtained by the median strip acquisition unit. Based on the information, an image showing the median strip is displayed on the road displayed on the display unit.

  With such a configuration, a mark indicating a facility located along a road corresponding to the set route is displayed on the display unit along with the road while being divided into a driving lane side and an opposite lane side of the road. Since the image showing the median strip is displayed on the road, it is possible to grasp the relative positional relationship between the cut of the median strip and the facility located on the opposite lane side based on the display content on the display unit.

  In the in-vehicle navigation device according to the present invention, the display control means further includes a branch path that passes through the cut of the central separation band and faces the facility that is located on the opposite lane side so as to face the central separation band. It can be set as the structure displayed.

  With such a configuration, it is possible to grasp the traveling route from the display content on the display unit to the facility located on the opposite lane side through the cut of the central separation zone and facing the central separation zone. It becomes possible to grasp more clearly the degree of difficulty in stopping at facilities located on the lane side.

  Further, in the in-vehicle navigation device according to the present invention, the display control means includes a mark indicating a facility located on the opposite lane side facing the central separation band displayed on the display unit, and a mark indicating another facility. The display can be made different.

  With such a configuration, it is possible to easily identify the facility located on the opposite lane side facing the central separation zone by the corresponding mark. For example, even if the facilities are located on the same oncoming lane side, the mark indicating the facility located opposite the center separation line and the mark indicating the facility located opposite the center separation band are different. Therefore, at first glance, the difference in the marks makes it more difficult to stop at facilities facing the median strip than at the facilities facing the median break. Judgment can be made.

  Further, in the in-vehicle navigation device according to the present invention, the display control means displays a predetermined mark in association with a mark indicating a facility located on the opposite lane side facing the central separation zone on the display unit. can do.

  With such a configuration, it is easy to identify whether or not the mark displayed on the display screen indicates a facility located on the opposite lane side facing the median strip based on the presence or absence of a predetermined mark. Will be able to. For example, even if the facilities are located on the same opposite lane side, the mark indicating the facility facing the center separation band is not associated with the mark indicating the facility facing the center separation line, and the mark indicating the facility facing the center separation band Since the predetermined mark can be displayed, the presence of the predetermined mark makes the facility facing the median strip more difficult to stop at the facility facing the median cut. It can be judged at a glance that the degree of difficulty of stopping by is high.

  Furthermore, in the in-vehicle navigation device according to the present invention, the travel distance from the current position to the facility located on the opposite lane side facing the central separation band through the cut of the central separation band is determined from the current position. Travel that calculates based on the median strip information acquired by the median strip information acquisition means and calculates the travel distance from the current position to the other facilities along the set route of the vehicle A distance calculation means and a travel distance display control means for displaying the travel distance calculated for the facility in association with a mark indicating the searched facility on the display unit can be adopted.

  With such a configuration, the mileage from the center separation zone to the facility located on the opposite lane facing the center separation zone is set in association with the mark indicating the facility. The distance traveled to the other facility along the route is displayed on the display unit in association with the mark indicating the facility, so that the gap between the median strip and the median strip are opposed to each other. Difficulty of visiting a facility located on the opposite lane side opposite to the central separation zone based on the relative positional relationship with the facility located on the lane side and the travel distance displayed in association with the mark indicating each facility This makes it easier to judge the degree.

  Further, in the in-vehicle navigation device according to the present invention, the screen scroll control means for scrolling the screen of the display unit that displays the road, the mark indicating the searched facility and the image indicating the median strip, and the searched facility When the nearest facility having the shortest travel distance from the current position of the vehicle is a facility located on the opposite lane facing the central separation zone, when the screen of the display unit is scrolled, the nearest facility It can be set as the structure which has the nearest facility display maintenance control means to maintain the state which displayed the mark which shows a facility in the said screen.

  With such a configuration, when scrolling the screen of the display unit that displays an image indicating a road, a mark indicating a searched facility, and a median strip, the opposite lane faces the median strip having the smallest travel distance. Since the mark indicating the nearest facility located on the side continues to be displayed on the display screen, the nearest facility that is located on the opposite lane side facing the central separation zone and that is relatively difficult to stop, and the display screen is easy to stop By comparing with other facilities located far away where the corresponding mark does not appear unless scrolling, the facility to actually stop by can be determined.

  The in-vehicle navigation device according to the present invention can search for a facility located along a road corresponding to a route set as a route on which the vehicle should travel, and a mark indicating the facility obtained by the search is the road. A navigation device having display control means for displaying on the display unit together with the road divided into a traveling lane side and an oncoming lane side, and information regarding a median installed on the road corresponding to the route, A median strip information acquisition means for obtaining median strip information including at least information indicating the installation location of the median strip; and the vehicle faces the median strip through a break in the median strip from the current position. And calculating the travel distance to the facility located on the opposite lane side based on the median strip information acquired by the median strip information acquisition means Travel distance calculation means for calculating the travel distance from the current position to the other facility along the set route from the current position, and the facility in association with the mark indicating the searched facility on the display unit And a travel distance display control means for displaying the travel distance calculated for.

  With such a configuration, the display unit correlates with the mark indicating the facility the distance traveled to the facility located on the opposite lane side through the cut of the median strip and facing the median strip, Also, since the distance traveled to other facilities along the set route is displayed in association with the mark indicating the facility, the distance that should actually travel to stop at each facility Will be able to grasp.

  Also in the in-vehicle navigation device according to the present invention having the above-described configuration, the display control means is further positioned on the opposite lane side so as to face the central separation band through the cut of the central separation band, as described above. The branch route to the facility is configured to be displayed on the display unit, and the display control means includes a mark indicating the facility located on the opposite lane side facing the central separation zone displayed on the display unit. The display control means is configured to display the mark differently from the mark indicating the facility, and the display control means associates a predetermined mark in association with the mark indicating the facility located on the opposite lane side facing the central separation zone. And a screen scroll control means for scrolling the screen of the display section for displaying the road, the mark indicating the searched facility, and the travel distance, and the searched application. When the nearest facility having the smallest mileage from the current position of the vehicle is a facility located on the opposite lane facing the central separation zone, when scrolling the screen of the display unit, It is possible to have a configuration including nearest facility display maintenance control means for maintaining a state where a mark indicating the nearest facility is displayed in the screen.

  According to the vehicle-mounted navigation device according to the present invention, the relative positional relationship between the break of the median strip and the facility located on the opposite lane side can be grasped by the display content on the display unit, so that the relative position From the relationship, it becomes possible to determine the degree of difficulty in stopping at the facility located on the opposite lane side. In addition, the distance traveled to the facility located on the opposite lane side through the cut of the median strip and facing the median strip was set in association with the mark indicating the facility. By displaying the distance traveled to other facilities along the route in association with the mark indicating the facility, it is possible to grasp the distance actually traveled to stop at each facility. Therefore, the value of the mileage displayed in association with the mark of the facility located on the opposite lane side facing the median strip, and the travel displayed in association with the mark indicating the mileage and other facilities From the relative relationship with the distance, it is possible to determine the degree of difficulty in stopping at the facility located on the opposite lane side facing the central separation zone.

It is a block diagram which shows the structure of the vehicle-mounted navigation apparatus which concerns on embodiment of this invention. It is a flowchart which shows the procedure of the process for searching the plant | facility along the setting route which the process unit of the vehicle-mounted navigation apparatus shown in FIG. 1 performs. It is a figure which shows an example of the menu screen of a facility search. It is a figure which shows an example of the designation | designated screen of the search object facility in the facility search along a route. It is a figure which shows an example of the designation | designated screen of the search range in the facility search along a route. It is a figure which shows an example (the 1) of the search result table of a facility search along a route. It is a figure which shows an example (the 2) of the search result table of a facility search along a route. It is a figure which shows the example of a display of the search result of a facility search along a route (the 1). It is a figure which shows the example of a display of the search result of a facility search along a route (the 2). It is a figure which shows the example of a display of the search result of a facility search along a route (the 3). It is a figure which shows the example of a display of the search result of a facility search along a route (the 4). It is a figure which shows the example of a display of the search result of a facility search along a route (the 5). It is a figure which shows the example of a display of the search result of a facility search along a route (the 6). It is a figure which shows the example of a display of the search result of a facility search along a route (the 7). It is a figure which shows the example of a display of the search result of a facility search along a route (the 8).

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  The in-vehicle navigation device according to the embodiment of the present invention is configured as shown in FIG.

  In FIG. 1, an in-vehicle navigation device 100 has a processing unit 11 constituted by a computer unit (including a CPU). The processing unit 11 includes a GPS unit 17 for providing position information necessary for vehicle navigation, sensors 18 (gyro sensor, acceleration sensor, etc.), and a storage unit 14 for storing map information and various information (for example, Hard disk unit) is connected. The map information includes information about the median strip associated with each road (median strip information). This median strip information includes information representing the position and shape of the median strip. The various information stored in the storage unit 14 includes facility information (position information, type, name, etc.) that represents information about the facility. Further, the processing unit 11 is provided in the vehicle interior, and includes a display unit 13 configured by an LCD or the like, an operation unit 12 including operation buttons and a touch panel configured in the display unit 13, and the like. An output circuit 15 for supplying an audio signal to the speaker 16 is connected. Further, a communication circuit 19 (which may include FM radio) is connected to the processing unit 11, and various information (for example, traffic jam information from VICS) received wirelessly by the communication circuit 19 is provided to the processing unit 11. To be able to be.

  The processing unit 11 executes processing related to vehicle navigation based on various information from the GPS unit 17 and the sensors 18, information received by the communication circuit 19 (for example, traffic jam information) and map information, and the display unit 13. A vehicle position mark, a guidance route (route), and the like are displayed together with a map related to navigation. Further, the processing unit 11 supplies an audio signal representing the message to the output circuit 15 so that various messages related to route guidance are output from the speaker 16.

  The in-vehicle navigation device 100 can further search for facilities located along the road corresponding to the route set as a route on which the vehicle should travel, and the processing unit 11 performs processing related to the search. Execute according to the procedure shown in 2.

  In response to a predetermined operation of the operation unit 12 by the occupant, the processing unit 11 causes the display unit 13 to display a facility search menu screen shown in FIG. In this menu screen, when the occupant operates the operation unit 12 and designates “facility search along route”, the processing unit 11 moves along the road corresponding to the route that is already set as a route for the vehicle to travel to the destination. A process for searching for a located facility (facility search process along the route) is executed according to the procedure shown in FIG.

  In FIG. 2, the processing unit 11 performs a process for acquiring a facility to be searched (S11). In this process (S11), the processing unit 11 causes the display unit 13 to display a search target facility designation screen as shown in FIG. On this search target designation screen, "convenience store", "parking lot", "restaurant", "coffee shop", "park" and "gas station" can be designated as the search target facility. When an occupant operates the operation unit 12 to specify a facility to be searched (for example, “convenience store”), the processing unit 11 acquires the specified facility as a search target facility.

  When the processing unit 11 obtains the search target facility, the processing unit 11 obtains the current position of the vehicle based on information from the GPS sensor 17 and various sensors (S12), and has already been set as a route on which the vehicle should travel to the destination. Set route information representing the route is acquired (S13). Then, the processing unit 11 performs a process for acquiring a range in which the facility should be searched in the range (all ranges) from the current position of the set route to the destination (S14). In this process (S14), the processing unit 11 causes the display unit 13 to display a search range designation screen as shown in FIG. In this search range designation screen, the “all range” (28 km) from the current position to the destination on the route, the range from the current position to “3 km”, the range from the current position to “5 km”, the current position A range up to “7 km”, a range from the current position to “10 km”, and a range from the current position to “15 km” can be designated as the search range. The processing unit 11 can dynamically change the search range that can be specified on the search range specification screen according to the distance from the current position of the set route to the destination. When the occupant operates the operation unit 12 and specifies a search range (for example, “within 3 km”), the processing unit 11 acquires the specified search range.

  When the processing unit 11 acquires information about the facility to be searched and the search range of the set route (S11, S14), the processing unit 11 executes a facility search process (S15). Specifically, referring to the facility information (including location information, type, name, etc.) stored in the storage unit 14, the road corresponding to the designated search range of the set route (specified by the map information) The facility (for example, convenience store) designated as the search target located along the search line is searched. By the search process, the processing unit 11 creates a search result table as shown in FIG. 6A, for example. In this search result table, location information (latitude / longitude (x1)) indicating the location of the facility in association with the name (convenience store A, convenience store B,...) Of the facility (convenience store) obtained by the search. , Y1), (x2, y2), ...), and the installation position of the facility is on the left side of the road (traveling lane side) with respect to the vehicle traveling direction (direction toward the destination of the route), or Information indicating whether the vehicle is on the right side (opposite lane side) is registered.

  When the facility search process (S15) is completed, the processing unit 11 uses the map information stored in the storage unit 14 to obtain information related to the median strip installed on the road corresponding to the designated search range of the set route. The median strip information representing is acquired (S16). Thereafter, the processing unit 11 selects one of the facilities registered in the search result table (see FIG. 6A) (S17), refers to the information registered in the search result table, and selects the selected facility. It is determined whether the vehicle is located on the left side (traveling lane side) or the right side (opposite lane side) of the road with respect to the traveling direction (S18). In the case of a facility located on the left side (traveling lane side) with respect to the traveling direction (left side in S18), the processing unit 11 follows the route set from the current position based on the map information to the facility. The distance (travel distance) is calculated (S20). Then, the processing unit 11 needs to calculate the travel distances 524m and 988m obtained in the search result table and avoid the median strip as in the case of "convenience store A" or "convenience store B" shown in FIG. 6B. No (no) is registered corresponding to the facility (S22).

  On the other hand, when the selected facility is a facility located on the right side (opposite lane side) with respect to the traveling direction (right side in S18), the processing unit 11 refers to the acquired median strip information (see S16), In order to travel to the facility, it is determined whether it is necessary to avoid the median strip (S19). That is, the facility located on the opposite lane side is facing the median strip, and the vehicle must make a U-turn through that median zone break (to avoid the median strip) and travel to that facility. Whether the facility located in the opposite lane is facing the median break and whether the vehicle can travel to that facility on a simple right turn without avoiding the median Is done.

  If the processing unit 11 determines that it is necessary to avoid the median strip to travel to the facility (YES in S19), the processing unit 11 determines the median strip from the current position based on the map information (including the median strip information). The travel distance through the cut to the facility on the opposite lane side is calculated (S21). Then, as in the case of “convenience store C” and “convenience store D” shown in FIG. 6B, the processing unit 11 calculates the travel distances 830 m and 1.2 km obtained in the search result table and avoids the median strip. Is registered corresponding to the facility (S22).

  Furthermore, even if the facility is located on the opposite lane side, for example, it is determined that it is not necessary to avoid the median strip in order to travel to that facility because it is located opposite the median strip break. Then (NO in S19), the processing unit 11 calculates the road distance (travel distance) to reach the facility along the route set from the current position based on the map information (S20). Then, as in the case of “Convenience store E” shown in FIG. 6B, the processing unit 11 does not need to avoid the median strip and the travel distance of 1.3 km obtained by the calculation in the search result table. ) Is registered in correspondence with the facility (S22).

  The processing (S17 to S22) as described above is repeatedly executed for all facilities obtained by the search (S23). When the above-described processing (S17 to S22) is completed for all the facilities (YES in S23), the processing unit 11 performs display processing based on information registered in the search result table (see FIG. 6B). Execute (S24).

  For example, the processing unit 11 executes the following display process.

  The processing unit 11 displays a search result screen as shown in FIG. 7 based on the route information indicating the set route, the information of the designated search range, and the information registered in the search result table shown in FIG. 6B. 13 can be displayed. In this search result screen, the set route R is displayed separately in the specified search range portion R1 (designated route portion R1: solid line reference) and other portions R2 (non-designated portion R2: see broken line). Marks A to E indicating facilities (for example, convenience stores) registered in the search result table are displayed along the designated route portion R1. Marks A and B indicating facilities located on the left side (traveling lane side) with respect to the traveling direction of the vehicle M are displayed on the left side of the designated route portion R1, and on the right side (opposite lane side) with respect to the traveling direction of the vehicle M. Marks C, D, and E indicating facilities located at are displayed on the right side of the designated route portion R1. A user (occupant) who sees such a search result screen has five facilities as specified types of facilities within the specified range from the current position on the set route R, and two of these facilities It can be understood that (marks A and B) are on the lane side (left side), and three facilities (marks C, D, and E) are on the opposite lane side (right side).

  The processing unit 11 can display a search result screen as shown in FIG. 8 on the display unit 13 based on the information registered in the search result table shown in FIG. 6B and the median strip information. In this search result screen, the designated route portion R1 of the set route R and the road RD corresponding to the designated route portion R1 are displayed, and images of the median strips CR1, CR2, CR3, CR4 are displayed on the road RD. Is done. In addition, the marks “Convenience Store B”, “Convenience Store C”, “Convenience Store D”, and “Convenience Store E” indicating the facilities (convenience store) obtained by the search are sequentially driven from the bottom of the screen in order from the bottom of the screen. The lane side (left side) and the opposite lane side (right side) are displayed separately. Marks “convenience store B” indicating facilities located on the traveling lane side are displayed on the left side of the road RD, and marks “convenience store C”, “convenience store D” and “convenience store E” indicating facilities located on the opposite lane side are It is displayed on the left side of the road RD. Note that the processing unit 11 performs scroll processing of the search result screen according to the operation of the scroll buttons 12aa and 12bb formed on the search result screen displayed on the display unit 13. Thereby, the mark which shows all the facilities obtained by search can be displayed on the display part 13 with road RD and median strip CR1, CR2, CR3, CR4, ....

  A user (occupant) who sees such a search result screen displays marks “Convenience Store C”, “Convenience Store D” indicating facilities located on the opposite lane side of the cuts of the displayed median strips CR1, CR2, CR3, CR4. From the relative positional relationship with “Convenience store E”, it is possible to grasp the relative positional relationship between the break of the median separation zone on the actual road and the facility located on the opposite lane side. It becomes possible to determine the degree of difficulty in stopping at the facility located on the opposite lane side from the relative positional relationship. For example, the facility (convenience store C) facing the central separation zone CR1 cannot be reached unless it makes a U-turn through the break between the central separation zone CR1 and the central separation zone CR2. It can be seen that the facility (convenience store D) facing the band CR2 cannot be reached without making a U-turn through the break between the central separation band CR2 and the central separation band CR3. Moreover, it turns out that it can arrive at the facility (convenience store E) facing the cut | interruption of the median strip CR3 and the median strip CR4 by making a simple right turn without making a U-turn. Accordingly, the user (occupant) sees the search result screen shown in FIG. 8 and is located on the opposite lane side of the facility (convenience store E) located on the opposite lane side and facing the cut of the central separation zone. It can be determined that the facilities facing the median strip (convenience store C, convenience store D) are more difficult to stop by.

  The processing unit 11 can display the search result screen as shown in FIG. 9 on the display unit 13 based on the information registered in the search result table shown in FIG. 6B and the median strip information. In this search result screen, the designated route portion R1 of the set route R and the road RD corresponding to the designated route portion R1 are displayed, and images of the median strips CR1, CR2, CR3 are displayed on the road RD. . In addition, the marks “Convenience Store A”, “Convenience Store B”, “Convenience Store C”, and “Convenience Store D” indicating the facilities (convenience store) obtained by the search are sequentially driven from the bottom of the screen in order from the bottom of the screen. The lane side (left side) and the opposite lane side (right side) are displayed separately. Marks “convenience store A” and “convenience store B” indicating facilities located on the traveling lane side are displayed on the left side of the road RD, and marks “convenience store C” and “convenience store D” indicating facilities located on the opposite lane side are It is displayed on the right side of the road RD. In addition, a branch route RR1 is displayed through the break between the central separation zone CR1 and the central separation zone CR2 to the facility (convenience store C) facing the central separation zone CR1 and located on the opposite lane side. A branch route RR2 is displayed, which passes through the break between CR2 and the central separation zone CR3 and faces the facility (convenience store D) located on the opposite lane facing the central separation zone CR2.

  In addition, the travel distance “524 m” registered in the search result table (see FIG. 6B) corresponding to the facility in association with the marks “convenience store A” and “convenience store B” indicating the facility located on the travel lane side. ”And“ 988 m ”are displayed. This travel distance represents the road distance (refer to S20 in FIG. 2) from the current position to the facility along the route R (designated route portion R) set. The travel distances “830 m” and “1.2 km” registered in the search table (see FIG. 6B) for the facility in association with the marks “convenience store C” and “convenience store D” indicating the facility located on the opposite lane side. Is displayed. This travel distance represents the travel distance (see S21 in FIG. 2) from the current position to the facility on the opposite lane side through the break of the median strip. In such a travel distance display, for example, a facility (convenience store D) located on the opposite lane side facing the central separation zone CR2 makes a U-turn through the break between the central separation zone CR2 and the central separation zone CR3. Since it cannot arrive unless it goes, even if it is in a position closer to the current position than the facility (convenience store B) on the travel lane side, the travel distance (1.2 km) is the travel distance of the facility (convenience store B) on the travel lane side (convenience store B) 988 m).

  The user (occupant) who sees such a search result screen displays marks “Convenience Store C” and “Convenience Store D” indicating the facilities located on the opposite lane side and the breaks of the displayed median strips CR1, CR2, and CR3. In addition to being able to grasp the relative positional relationship between the break of the median separation zone on the actual road and the facility located on the opposite lane side, it also faces the median separation zones CR1 and CR2. The branch routes RR1 and RR2 displayed corresponding to the marks “convenience store C” and “convenience store D” indicating the facilities located on the opposite lane side, pass through the breaks of the central separation zone, and the facilities (convenience store C, Since the travel route to the convenience store D) can be grasped, the degree of difficulty in stopping at the facility (convenience store C, convenience store D) located on the opposite lane side, specifically, Facility located on the traveling lane side that is not shown (convenience store A, convenience store B) it is possible to more clearly understand that hardly drop than.

  Further, the distance traveled to the facilities (convenience store C, convenience store D) located on the opposite lane side through the cut of the central separation zone and facing the central separation zone is a mark “convenience store C”, “convenience store” indicating the facility. Corresponding to “D”, the distance traveled to other facilities (convenience store A, convenience store B) along the set route is the “convenience store A”, “convenience store” indicating the facility. Each of them is displayed in association with “B”. Accordingly, it is difficult to drop in to facilities (convenience store C, convenience store D) located on the opposite lane facing the central separation zone based on the travel distance displayed in association with the marks indicating the facilities. Judgment becomes easier.

  As described above, the processing unit 11 can perform scroll processing of the display screen (search result screen). Among the searched facilities, the nearest facility having the shortest travel distance from the current position of the vehicle is, for example, on the branch route RR13 passing through the break between the central separation zone CR11 and the central separation zone CR12, as shown in FIG. 10A. If the facility is located on the opposite lane side facing the median strip CR11 that can be reached (coffee shop A), the processing unit 11 scrolls the display screen according to the operation of the scroll buttons 12aa and 12bb. For example, as shown in FIG. 10B, the state where the mark “coffee shop A” indicating the nearest facility is displayed on the display screen is maintained. That is, as shown in FIG. 10B, the marks “coffee shop B” and “coffee shop C” indicating the facilities located on the travel lane side farther from the current position by scrolling are moved to the travel distances “2.5 km”, “2” .6km ", the mark" coffee shop A "indicating the facility located on the opposite lane facing the central separation zone CR11 which is the nearest facility is displayed with a travel distance of" 220m "and a branch Maintained with route RR13. By scrolling the road RD, the mark “coffee shop A” indicating the searched facility, and the display screen (see FIGS. 10A and 10B) that displays the images showing the median strips CR11 and CR12, Since the mark “coffee shop A” indicating the nearest facility located on the opposite lane side facing the median strip CR11 having the shortest mileage (220 m) continues to be displayed on the display screen, it faces the median strip CR11. The nearest facility (coffee shop A) located on the opposite lane side, which will be relatively difficult to drop in, and other facilities (coffee shop B, coffee shop) that are easy to drop in but do not appear the corresponding mark unless the display screen is scrolled Compared with C), the facility to actually stop by can be determined. For example, if you need to stop urgently, stop by the facility with the shortest mileage (coffee shop A) even if it is a facility that is somewhat difficult to stop because it is located on the opposite lane facing the median strip CR11 If it is not necessary to stop urgently, it is possible to easily determine that the user should stop at a facility (coffee shop B, coffee shop C) located on the traveling lane side where it is easy to stop even if it is somewhat far away.

  In the example of the search result screen (FIGS. 8, 9, 10A, and 10B) described above, the image of the median strip is displayed on the road RD, but the image of the median strip is not displayed. May be. For example, the processing unit 11 can display a search result screen as shown in FIG. 11 on the display unit 13 based on the information registered in the search result table shown in FIG. 6B and the median strip information. In this search result screen, the designated route portion R1 of the set route R and the road RD corresponding to the designated route portion R1 are displayed. In addition, the marks “Convenience Store A”, “Convenience Store B”, “Convenience Store C”, and “Convenience Store D” indicating the facilities (convenience store) obtained by the search are sequentially driven from the bottom of the screen in order from the bottom of the screen. The lane side (left side) and the opposite lane side (right side) are displayed separately. Marks “convenience store A” and “convenience store B” indicating facilities located on the traveling lane side are displayed on the left side of the road RD, and marks “convenience store C” and “convenience store D” indicating facilities located on the opposite lane side are It is displayed on the right side of the road RD. Further, in association with marks “convenience store A” and “convenience store B” indicating facilities located on the travel lane side, the travel distance “524 m” registered in the search result table (see FIG. 6B) corresponding to the facility, and “988 m” (distance along the route R) is displayed. The travel distances “830 m” and “1.2 km” registered in the search table (see FIG. 6B) for the facility in association with the marks “convenience store C” and “convenience store D” indicating the facility located on the opposite lane side. "(Travel distance from the current position to the facility on the opposite lane side through the break in the median strip) is displayed.

  In addition to the display contents, a predetermined mark “required R” is displayed in association with marks “convenience store C” and “convenience store D” indicating facilities located on the opposite lane facing the central separation zone. It is well known to the user in advance that this mark “required R” means that it is necessary to make a U-turn through the cut of the median. Note that the mark “necessary R” does not need to be displayed in association with the mark indicating the facility facing the cut line of the median strip even when positioned in the opposite lane.

  The user (occupant) who sees the search result screen, the facility (convenience) indicated by the marks “convenience store C” and “convenience store D” corresponding to the mark “required R” is on the opposite lane facing the central separation zone. It is possible to grasp that the facility is located at the location, and it is possible to determine that the facility is more difficult to stop than other facilities (convenience store A, convenience store B) that are not associated with the mark “required R”. .

  Note that an image of the median strip can also be displayed on the search result screen shown in FIG. In this case, the facility located on the opposite lane side facing the central separation zone can be recognized with a sense of reality by the image of the central separation zone together with the mark “required R”.

  In the search result screen, the processing unit 11 can display a mark indicating a facility located on the opposite lane side facing the central separation zone, different from marks indicating other facilities. For example, as shown in FIG. 12, the marks “convenience store C” and “convenience store D” indicating facilities located on the opposite lane side facing the middle separation zone CR1 and the central separation zone CR2 are other facilities. It can be made different from the colors of the “convenience store A” and “convenience store B” indicating the facilities located on the traveling lane side. Further, as shown in FIG. 13, the sizes of the marks “Convenience Store C” and “Convenience Store D” indicating the facilities located on the opposite lane side facing the middle separation zone CR1 and the central separation zone CR2 are set at other facilities. It is possible to make the size different from, for example, the size of the marks “convenience store A” and “convenience store B” indicating facilities located on a certain traveling lane side. It should be noted that the mark indicating the facility located on the opposite lane side facing the central separation zone can be different from the mark indicating the facility facing the cut line of the central separation zone even if located on the opposite lane.

  As described above, in the search result screen, when the mark indicating the facility located on the opposite lane side opposite to the central separation band is displayed differently from the mark indicating the other facility, the central separation band depends on the difference in the mark. It becomes possible to easily identify the facility located in the opposite lane facing the vehicle. As a result, due to the difference in the marks, for example, it is more difficult to stop at a facility facing the median strip than at the facility located on the driving lane side or at the facility facing the median strip break. It becomes possible to judge at a glance that the degree is high.

  As described above, the in-vehicle navigation device according to the present invention has the effect that it can express the degree of difficulty in stopping at a facility located on the opposite lane side of the road where the median strip is installed, and is set. It is useful as an in-vehicle navigation device that can search for facilities located along a route.

DESCRIPTION OF SYMBOLS 11 Processing unit 12 Operation part 13 Display part 14 Memory | storage part 15 Output circuit 16 Speaker 17 GPS unit 18 Sensors (gyro sensor, acceleration sensor)
19 Communication circuit 100 Car navigation system

Claims (11)

It is possible to search for facilities located along a road corresponding to a route set as a route on which the vehicle should travel, and marks indicating the facilities obtained by the search are the lane side and the opposite lane side of the road. A navigation device having display control means for displaying on the display unit together with the road,
A median strip information acquisition means for obtaining median strip information including information on the median strip installed on the road corresponding to the route and at least information indicating the installation position of the median strip;
The in-vehicle navigation device, wherein the display control unit displays an image showing the central band on the road displayed on the display unit based on the central band information acquired by the central band acquisition unit.   The in-vehicle navigation according to claim 1, wherein the display control unit further causes the display unit to display a branch route that passes through the cut of the central separation band and faces the central separation band to a facility located on the opposite lane side. apparatus.   The said display control means displays the mark which shows the facility located in the opposite lane side facing the said median strip displayed on the said display part differently from the mark which shows other facilities. In-vehicle navigation device.   The in-vehicle navigation according to any one of claims 1 to 3, wherein the display control means causes the display unit to display a predetermined mark in association with a mark indicating a facility located on the opposite lane side facing the central separation zone. apparatus. The mileage from the current position through the cut of the median strip to the facility located on the opposite lane facing the median strip was acquired by the median strip information acquisition means A calculation based on the median strip information, and a travel distance calculating means for calculating a travel distance from the current position to the other facility along the set route,
The in-vehicle navigation according to any one of claims 1 to 4, further comprising travel distance display control means for displaying a travel distance calculated for the facility in association with a mark indicating the searched facility on the display unit. apparatus. Screen scroll control means for scrolling the screen of the display unit for displaying an image indicating a road, a mark indicating a searched facility, and a median strip;
If the nearest facility having the smallest travel distance from the current position of the vehicle among the searched facilities is a facility located on the opposite lane side facing the central separation zone, the screen of the display unit is scrolled. 6. The vehicle-mounted navigation device according to claim 5, further comprising a nearest facility display maintenance control unit that maintains a state in which a mark indicating the nearest facility is displayed in the screen. It is possible to search for facilities located along a road corresponding to a route set as a route on which the vehicle should travel, and marks indicating the facilities obtained by the search are the lane side and the opposite lane side of the road. A navigation device having display control means for displaying on the display unit together with the road,
Information about the median strip installed on the road corresponding to the route, the median strip information acquisition means for acquiring median strip information including at least information indicating the installation position of the median strip,
The mileage from the current position through the cut of the median strip to the facility located on the opposite lane facing the median strip and acquired by the median strip information acquisition means A calculation based on median strip information, and a travel distance calculating means for calculating a travel distance from the current position to the other facility along the set route,
A vehicle-mounted navigation device having travel distance display control means for displaying a travel distance calculated for the facility in association with a mark indicating the searched facility on the display unit.   The in-vehicle navigation device according to claim 7, wherein the display control unit further causes the display unit to display a branch route that passes through the cut of the central separation zone and faces the facility on the opposite lane side so as to face the central separation zone. .   The said display control means displays the mark which shows the facility located in the opposite lane side facing the said median strip displayed on the said display part differently from the mark which shows other facilities. In-vehicle navigation device.   The in-vehicle navigation according to any one of claims 7 to 9, wherein the display control means causes the display unit to display a predetermined mark in association with a mark indicating a facility located on the opposite lane facing the central separation band. apparatus. Screen scroll control means for scrolling the screen of the display unit displaying a road, a mark indicating a searched facility, and a travel distance;
If the nearest facility having the smallest travel distance from the current position of the vehicle among the searched facilities is a facility located on the opposite lane side facing the central separation zone, the screen of the display unit is scrolled. The vehicle-mounted navigation device according to any one of claims 7 to 9, further comprising a nearest facility display maintenance control unit that maintains a state in which a mark indicating the nearest facility is displayed in the screen.

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