JP4111444B2 - Navigation device - Google Patents

Description

  The present invention relates to a navigation device mounted on a vehicle or the like, and in particular, a route scroll function that is effective when confirming a route after a guidance route is set or as a demonstration screen when decorating the navigation device at a store. It is related with the navigation apparatus provided with.

  In a general navigation apparatus mounted on a vehicle or the like, a map / information data storage such as a CD-ROM, a DVD-ROM, a hard disk, etc., which stores map data for drawing a map and facility information data for searching for a facility, etc. A vehicle, a data capture device that captures data from the map / information data storage medium, a display device that displays a map, etc., and a self-contained navigation device that uses a GPS receiver, a mileage sensor, a gyroscope, etc. It has a vehicle position detection device for detecting the current position and the direction of travel direction, fetches map data including the current position of the vehicle from a map / information data storage medium, and generates a map image around the vehicle position based on the map data. In addition to drawing on the screen of the display device, the vehicle position mark is superimposed on the display screen and displayed. Scroll displays a map image in response to, or to move the fixed vehicle position mark a map image on a screen, so that seen whether the vehicle is traveling where the current at a glance.

  Map data stored in a map / information data storage medium such as a CD-ROM, DVD-ROM, or hard disk is divided into longitude and latitude widths of appropriate sizes according to various scale levels. A road or the like is stored as a coordinate set of nodes expressed by longitude and latitude. A road is composed of a combination of two or more nodes, and map data displays a road layer consisting of a road list, a node table, an intersection configuration node list, etc., and roads, buildings, facilities, parks, rivers, etc. on the map screen. Map data such as a background layer, and information data for displaying characters, map symbols, etc., such as administrative division names such as municipalities, road names, intersection names, and facility names.

  In addition, this navigation device has a route guidance function for allowing a user to easily travel on a road toward a desired destination or waypoint (hereinafter referred to as “destination”) without making a mistake. Yes. According to this route guidance function, a destination is set by various means, and an appropriate route is calculated and presented in consideration of various conditions among routes connecting these points from the departure point to the destination. It has become. Also, the route selected by the user is stored as a guide route, and while driving, the guide route is drawn on the map image with a different color from other routes and displayed on the screen. When approaching an intersection where the course of course should be changed within a certain distance, the intersection is enlarged and displayed on the screen by drawing an arrow indicating the direction in which the course should be changed, or a right or left turn is guided by voice. In this way, the user can be guided to the destination.

  In the navigation device as described above, after setting the guidance route as described above, what route the guidance route actually takes, what kind of right / left turn exists, and what kind of guidance is provided I want to check if it will be done and have some knowledge in advance. In order to respond to such a user's request, the navigation device needs to automatically display a map of the guidance route in order from the current location to the destination for the set guidance route, and the navigation device needs to provide guidance in particular. A right / left turn intersection or the like has a route scroll function for outputting actual guidance information.

  Further, in a store that sells navigation devices, it is not possible to obtain the attention of customers simply by displaying the navigation device, displaying a map screen on a monitor, and explaining the navigation device on a panel. For this reason, it is preferable to display a display image that is more conspicuous as compared with navigation devices of other companies on the monitor screen so as to attract attention to the navigation device. In that case, it is preferable to realistically indicate the state in which the navigation device is actually operating, in that respect, the display of the route scroll to the destination as described above is close to the actual display screen of the navigation device, It can attract customers' attention.

  In the above-described processing in the route scroll display used in the navigation device, if the route is scrolled as it is from the detailed diagram displaying the current location as it is, it takes a very long time if the destination is far away. Also, when the route scrolls from the current location on the wide area map, for example, the road condition from the current position to the main road and the detailed road condition from the main road to the destination are not known. Also, the demonstration screen is not preferable because it is a monotonous screen. In this case, there has been proposed a system in which the user can manually perform operations such as scroll speed, scale, display orientation, and point skip at an arbitrary timing.

However, since it is troublesome for the user to perform such an operation, various proposals have been made to automatically perform such an operation. For example, Japanese Patent Application Laid-Open No. 11-295085 discloses a destination. Disclosed is a technique for increasing the scrolling speed as the distance to the vehicle increases and adjusting the scrolling speed according to the type of road such as an expressway or a detailed road. A technique for adjusting the scrolling speed according to the scale of the map to be displayed is disclosed, and Japanese Patent Application Laid-Open No. 2001-21373 changes the scale of the map displayed on the screen according to the type of road to travel and the distance to the guide point A technique for adjusting the scroll speed is disclosed.
Japanese Patent Laid-Open No. 11-295085 JP 2000-230839 A JP 2001-21373 A

  In order to confirm the set guidance route or to display a demonstration, as described above, according to the distance to the destination, according to the road type, according to the map scale to be displayed, and further to the guidance point Even in the technology that automatically adjusts the route scrolling speed according to the distance to, the display is not always sufficient, for example, when traveling on the same highway several hundred kilometers In this case, a route scroll display that does not require display is performed, which is useless. In addition, although it is possible to omit the display of such a portion that does not require the route scroll display, if the appropriate display processing is not performed at that time, the user will be informed of the right and left turn intersections that the user wants to know most. It becomes impossible to display information around the required point.

  Therefore, according to the present invention, when performing the route scroll display from the current location to the destination, it is possible to omit the display of the portion that is almost unnecessary for the user by the route scroll display, and the portion that needs the guidance. The main purpose is to provide a navigation device capable of providing appropriate guidance.

In the navigation device according to the present invention, in order to solve the above-described problem, a scroll output unit that scrolls and displays a map along a guidance route from the current position to the destination, and a distance detection between guide points that detects a distance between the guide points. And a determining means for determining whether or not the distance between the guide points is equal to or greater than a predetermined distance; and the distance between the guide points in the determining means is equal to or greater than a first predetermined distance that differs depending on a road type. When it is determined, from the point where the second predetermined distance that differs depending on the type of road from the guidance point , without scrolling the route between the next guidance point and the point before the third predetermined distance that differs depending on the type of road , resuming skip scroll processor scrolling skips to the next guidance point portion, both ends of the guide point Those having a guide point between map table during a scale adjustable scroll processor for adjusting the scrolling speed by displaying selected map scale entering the screen.

Further, in yet another of the navigation device according to the present invention, in the navigation device, according to the state of the guidance route, and the scroll processing means for adjusting the map scale of the scroll, the scroll processing means for adjusting the scrolling speed The apparatus further includes at least one, and further includes a scroll guide type selection unit that operates by selecting one of the scroll processing units.

Further, in yet another of the navigation device according to the present invention, in the navigation device, according to the state of the guidance route, and the scroll processing means for adjusting the map scale of the scroll, the scroll processing means for adjusting the scrolling speed The apparatus further includes at least one scroll selection method selecting means for selecting an arbitrary scroll processing means and performing the scroll processing jointly.

  In still another navigation device according to the present invention, in the navigation device, the scroll output is used as a demonstration output of the navigation device.

  In the navigation device according to the present invention, as a result of the route scroll processing as described above, when performing a route scroll display from the current location to the destination, for example, when traveling on the same highway for a long distance, For parts where there is almost no need for guidance by route scroll display, the display can be skipped and omitted, and it is possible to provide efficient guidance for the user. You will be able to give guidance.

  Further, in the navigation device, when the first predetermined distance determined by the determining means is set to be different depending on the type of road, the general road portion can be skipped even at a relatively short distance. In addition, the highway portion can skip a relatively long distance section.

 Further, in the navigation device, when the part that does not perform route scrolling between the guide points starts from a point that is beyond the second predetermined distance from the guide point, the scrolling of the first predetermined section is skipped. In doing so, it is possible to perform guidance without skipping the part beyond the second predetermined distance, which is the peripheral part of the guidance point that needs guidance, and while performing efficient scrolling by skipping, Will be able to give you polite guidance.

  Further, in the navigation device, the portion that does not perform the route scroll between the guide points ends at a point that is a third predetermined distance before the guide point, and scrolls the first predetermined section. When skipping, it is possible to provide guidance without skipping the portion in front of the third predetermined distance that is the peripheral portion of the guidance point that needs guidance, and while performing efficient scrolling by skipping, it is important to Will be able to give you polite guidance.

 In the navigation device, when the second predetermined distance or the third predetermined distance is set to be different depending on the type of road, the portion of the general road skips a relatively short distance range of the guide point. It can be a part that guides without performing, and a part of the expressway can be a part that guides without skipping a relatively long range of guidance points, and can perform an appropriate scroll display according to the road .

   In the navigation device, a scroll processing means for adjusting a map scale for scrolling, a scroll processing means for adjusting a map display range for scrolling, and a scroll processing means for adjusting a scroll speed according to the state of the guidance route. In addition to the skip-type scroll processing means, various scroll processing means are provided in the case further including at least one of the above and further including a scroll guide method selection means that operates by selecting any one of the scroll processing means. Any scroll display method can be selected according to the user's preference.

   In the navigation device, a scroll processing means for adjusting a map scale for scrolling, a scroll processing means for adjusting a map display range for scrolling, and a scroll processing means for adjusting a scroll speed according to the state of the guidance route. In addition to the skip-type scroll processing means, there are various types other than the skip-type scroll processing means. The scroll processing means is provided, and the scroll processing means can be appropriately combined to perform more detailed route scroll display.

  Further, in the navigation device, in the case where the scroll output is a demonstration output of the navigation device, the navigation device can display a screen with a change in a store that sells the navigation device, and easily attracts the attention of the customer. can do.

  In the navigation device, when performing the route scroll display from the current location to the destination, it is possible to omit the display of the portion that the user hardly needs to guide by the route scroll display, and the portion that needs the guidance. Is a scroll output means for scrolling and displaying a map along the guide route from the current location to the destination, and a distance detecting means for detecting the distance between the guidance points. And determining means for determining whether or not the distance between the guide points is equal to or greater than a predetermined distance; and when determining that the distance between the guide points is equal to or greater than a first predetermined distance by the determining means, Skip the next guidance point without skipping part of the route between points. It was achieved by providing a resume skipped type scroll processing means Lumpur.

  Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a functional block diagram mainly showing functional parts that perform route scroll processing, which is a main part of the present invention, in a navigation apparatus according to an embodiment of the present invention. In addition, each function part in the figure can be paraphrased as means for performing each function.

  In the navigation apparatus shown in FIG. 1, like the conventional system, the system control unit 20 includes a ROM that records software for comprehensively performing various predetermined functions, a CPU for processing the software, and the like. It is equipped and controls each functional unit connected to it. In the navigation apparatus shown in FIG. 1, the vehicle position detection unit 3 is connected to the system control unit 20 and the position data of the GPS receiver 1 is input. Further, if necessary, the travel distance and direction by the vehicle speed sensor and the angle sensor. By inputting the movement data of the vehicle from the detection unit 2, the current position of the vehicle is accurately detected.

  In the instruction signal input unit 6, an instruction signal from a user such as a remote controller is input in the navigation device so that an instruction for selecting a function of route scroll, which will be described in detail later, can be input. It is also possible to input demonstration function output instructions. Further, a signal of the voice recognition unit 5 that inputs a user instruction signal by a process of recognizing the user's voice as necessary is also input to the instruction signal input unit 6.

  The data fetching unit 8 fetches necessary map data and facility information from a map / information data recording medium 7 such as a DVD-ROM, CD-ROM, or hard disk, and the data recording medium is like a hard disk. When data can be easily written, data can be input to the data recording medium so that data imported from outside or data processed by other functional units can be read and used later. I have to. In particular, in the present invention, a map of a point designated at the time of route scrolling is output at a predetermined scale, and data such as right / left turn guidance can be output.

  In the guidance route calculation unit 9, the current location of the vehicle detected by the vehicle position detection unit 3 is fetched, and the phone number is further input by scrolling the map by operating the cursor displayed on the screen or by inputting an address. The destination set by various methods such as the above is taken in, and the optimum guide route is calculated and presented under various conditions such as the shortest required time, the shortest distance, and the general road priority. In addition, the guidance route guidance unit 10 performs guidance so that the vehicle can safely reach the destination according to the guidance route calculated by the guidance route calculation unit 9 and selected and designated by the user. In addition, an audio output unit 12 that outputs various sounds including various guidance from the speaker 12 is provided, and an image output unit 14 that displays various information in addition to a map as described later is provided on the monitor 13.

  In the route scroll output processing unit 21 that performs the main function of the present invention in FIG. 1, an example is shown in which an arbitrary route scroll can be selected and used among various route scroll modes. The route scroll output processing unit 21 shown in the figure is comprehensively controlled by the system control unit 20 so as to be able to perform a predetermined operation, and each function unit in the route scroll output processing unit 21 as described later includes: The system control unit 20 can exchange data with each other, and can exchange data with other various functional units connected to the system control unit.

  In the route scroll output processing unit 21 shown in FIG. 1, a guidance skip type scroll processing unit 22, a map display scale adjustment type scroll processing unit 23, a map display range adjustment type scroll processing unit 24, and a scroll speed adjustment type scroll processing unit 25. By selecting the route scroll guidance method selection unit 26 that operates according to a user's instruction or the like, these processing units can be arbitrarily switched, or a combination thereof can be used as appropriate to perform various route scroll displays. I am doing so.

  The route scroll output processing unit 21 includes a guidance route information capturing unit 27, and the guidance route calculated by the guidance route calculation unit 9, various related information output when traveling along the guidance route, and when traveling Guide information to be output is imported. In the route scroll information fetching unit 28, only the information necessary for the route scrolling is extracted from the various information fetched by the guide route information fetching unit 27 and can be used in various processing units to be described later.

  The destination arrival detection unit 30 detects that the location where the route scroll is being performed has reached the destination, and can finish this route scroll processing. In the road type detection unit 31, the travel road from the current guidance point to the next guidance point is a detailed road, a general road, a national road, a highway, a free road, among the information captured by the route scroll information capturing unit 28. It is detected which one of various roads such as a navigation route, and the information is output to each scroll processing unit. The route scroll map data output unit 32 can output the map data for route scrolling processed by each scroll processing unit, and the route guidance output unit 33 can output images and voices such as right / left turn guidance. I am doing so.

  Among the various scroll processing units, in the guidance skip type scroll processing unit 22 which is the most main processing unit in the present invention, the distance detecting unit 34 between guide points includes the route scroll information capturing unit 28. Is detected from the current guide point including the departure point to the next guide point, and the data is output to the guide point distance condition (L1) satisfaction determination unit 37. The guidance point arrival detection unit 35 detects that the currently scrolled point has reached the point set as the next guide point, and forms a subsequent processing start signal. The fade-in / fade-out display control unit 36 performs a process of fading out when skipping the route scroll display and fading in when starting the route scroll near the next guide point.

  In the distance between guide points (L1) satisfaction determination unit 37, the distance from the current guide point detected by the inter-guide point distance detection unit 34 to the next guide point is a road type between the guide points. In some cases, for example, whether or not the distance condition (L1A) 38 for a general road such as 3 km is satisfied, and if the road type between the guide points is a highway, the distance condition (L1B for a highway such as 30 km) ) It is determined whether or not 39 is satisfied.

  The predetermined distance (L2) arrival detection unit 40 after the guidance point skips to the next guidance point suddenly when the current guidance point is passed when skipping to the next guidance point after passing the current guidance point. Rather than passing the current guidance point, the guidance is continued until the predetermined distance is reached, and the predetermined distance is detected so that the user can be informed of the situation around the current guidance point. If the road after passing through the guide point is a general road, whether or not it has reached a predetermined distance (L2A) for a general road such as 100 m, and if the road is a highway, a high speed such as 300 m It is determined whether or not a predetermined road distance (L2B) has been reached.

  The predetermined distance detection unit 43 before the guidance point detects the start point in order to perform guidance from a predetermined distance before the next guidance point when skipping the route scroll as described above and moving to the next guidance point. When the road type from the current point to the next point is a general road, a point of a predetermined distance (L3A) for a general road such as 300 m is detected, and when the road is a highway, for example, 1 km The predetermined distance (L3B) for highways such as is detected. In the illustrated example, the map display scale adjustment type scroll processing unit 23 includes a scale type adjustment scroll processing unit 46 for each road type, a map display scale adjustment type scroll processing unit 47 between guide points, and a departure / destination distance. A corresponding scale adjustment type scroll processing unit 48 is provided, and the route scroll is effectively performed by any one of the map display scale adjustments.

  Among them, the scale type scroll processing unit 23 for each road type performs processing such as slowing down the scroll speed on a detailed road and speeding up on an expressway, depending on the type of road being route-scrolled. Further, the scale adjustment type scroll processing unit 47 for displaying the map between the guide points selects and displays a map of a scale in which both ends of the guide points enter one screen, and performs a route scroll on the map. Even if the interval is long, the interval is shortened to the extent that one screen is entered, and scrolling is performed there, so processing for increasing the scroll speed is performed here.

  In addition, in the scale adjustment type scroll processing unit 48 corresponding to the departure point / destination distance, the vicinity of the departure point and the vicinity of the destination are displayed on a detailed map, and the distance between the departure point and the further away from the departure point becomes larger. A scale map is selected and displayed, and the route is scrolled on the map. For this purpose, the distance from the departure point is detected by the departure point separation distance calculation unit 49, and the destination approach distance is detected. The computing unit 50 detects the distance approaching the destination.

  In the map display range adjustment type scroll processing unit 24, for example, the map display range is adjusted so that the guidance route enters one map for each road type, and the route scroll is performed on the map. As a result, a small-scale map is displayed for detailed roads traveling short distances, and the map display range is adjusted so that one map can be displayed even if the travel distance is long for highways. As a result, large-scale maps are displayed, and route scrolling is performed on these maps. When such a display is performed, the scroll speed is adjusted to be slow on the detailed road and fast on the highway.

  Further, in this map display range adjustment type scroll processing unit 24, for example, the map display range is adjusted so that two adjacent guide points are included in one map. A detailed map is displayed, and when it is long like an expressway, a wide area map is displayed and route scrolling is performed.

  The route scroll speed adjustment type scroll processing unit 25 changes the scroll speed for each currently displayed road type. For example, the scroll speed is slow on a general road and fast on a high-speed road. In addition, the scroll speed is adjusted so that the scroll speed increases as the distance from the departure point increases, and the scroll speed decreases as the distance from the destination decreases.

  The various route scroll processing methods as described above, for example, the map display scale adjustment type scroll process and the scroll speed adjustment type scroll process are linked to each other in addition to performing the processing independently in each processing unit, for example, the map display scale adjustment. In the scale-control-type scroll processing unit 48 corresponding to the starting point / destination distance of the type scroll processing unit 23, the vicinity of the starting point and the vicinity of the destination are displayed in a detailed map, and during that time, the farther away from the starting point and the farther from the destination A map with a scale on the wide area side is selected and displayed, and the scroll speed adjustment type scroll processing unit 25 further increases the scroll speed as the distance from the departure point increases, and decreases the scroll speed as the destination approaches. An active scrolling process can also be performed.

  In the navigation device including the functional blocks as described above, the processing performed by the guidance skip type scroll processing unit 22 can be sequentially operated according to the operation flow shown in FIG. The operation flow will be described below with reference to the functional block diagram of FIG. 1 and the route example of FIG.

  In the guidance skip type scroll process shown in FIG. 2, first route scroll information is fetched (step S1). This is performed by the route scroll information fetching unit 28 of FIG. 1 selecting and fetching necessary information from the guidance route fetched by the guidance route information fetching unit 27 and various information related to the guidance. Next, the road type from the current guidance point to the next guidance point is detected (step S2). This operation is performed by the road type detection unit 31 in FIG. 1 detecting the road type from the current guidance point to the next guidance point from the route scroll information fetched by the route scroll information fetching unit 28. Is called.

  Next, it is determined whether or not the road type to the next guidance point is a highway (step S3). As a result, when it is determined that the road type to the next guidance point is not a highway, that is, a general road, it is determined whether or not the next guidance point is a predetermined distance L1A or more. This determination is performed by the guide point distance condition (L1) satisfaction determination unit 37 using the distance detected by the guide point distance detection unit 34 in FIG. At this time, for example, in the case of a route that turns right at the next guidance point S from the current location P and turns left at the next guidance point V, as in the example of the route shown in FIG. 3, from the current location P to the next guidance point S. When the distance is L1 and the road is a general road, as shown in the table of the predetermined distance condition setting example in the figure, for example, the predetermined distance L1A of the general road at the predetermined distance L1 is set to 3 km, and thus the above step S4 It is determined whether or not there is 3 km or more until the next guidance point.

  As a result of the determination, when it is determined that there is 3 km or more until the next guidance point, route scroll output is performed from the current guidance point (step S5). The first part of this process is the scroll start point, which is the current location, so the vehicle position advances along the guidance route from the current location to the destination, and the map is scrolled so that the vehicle location is at the center. The Further, as will be described later, when the route scrolling continues thereafter and the process returns to this step 5 and processing is performed again, the respective guide points become the current guide points sequentially.

  After such route scroll output, it is detected whether or not a predetermined distance L2A has passed from the current guidance point. This processing is performed in the predetermined distance (L2) arrival detection unit 40 after the guidance point in FIG. In the example of the route shown in FIG. 3, the predetermined distance L2A of the general road that is a predetermined distance L2 from the current location P is set to 100 m. Therefore, in step S6, it is determined whether or not 100 m has passed from the current location P that is the current guidance point. . As a result of the determination, when it is determined that the distance has not yet exceeded 100 m, the process returns to step S5 and the operation is repeated. When it is determined that the distance has exceeded 100 m, the route scroll is skipped to the predetermined distance L3A of the next guide point (step S7). ). Thereafter, a route scroll is output from a point before the predetermined distance L3A of the next guidance point. The point at the predetermined distance at this time is detected by the predetermined distance (L3A) detection unit 43 before the guide point in FIG.

  In this example of the route shown in FIG. 3, the predetermined distance L3A at this time is 300 m from the predetermined distance L3A of the general road at the predetermined distance L3 before the guide point. Therefore, in step S7, the route is up to 300 m before the next guide point. Scrolling will be skipped. Thus, in the example shown in FIG. 3, when the route scrolls from the current location P to the next guidance point S, the road is a general road, and there is more than 3 km from the current location to the next guidance point S. As a result, Route scroll guidance from the current location P to the point Q of 100m, then skip the route scroll to the point R 300m before the next guidance point S, from the point R to the route scroll and at that time, for example "turn right at the next intersection To the point S. When skipping the above-mentioned route scroll, the sudden change in the displayed map makes the user feel strange, so fade out as appropriate, and then fade in to perform route scroll output near the next guidance point It is preferable. This process is performed in the fade-in / fade-out display control unit 36 of FIG.

  Next, it is determined whether or not the route scroll between the guide points has ended (step S9). If it has not ended yet, the process returns to step S8 again to continue the route scroll operation. When it is determined in step S9 that the route scroll between the guide points has ended, that is, when it is determined that the next guide point S in FIG. 3 has been reached, it is determined whether or not the destination has been reached (step S10). If it is not yet the destination, the process returns to step S2 again to detect the current guidance point, that is, the road type from the point S shown as the next guidance point in FIG. 3 to the next guidance point V, and so on. Repeat the operation.

  On the other hand, if it is determined in step S4 that the distance to the next guidance point is equal to or greater than the predetermined distance L1A, for example, if it is determined that it is not equal to or greater than 3 km which is the predetermined distance of the general road in the above example, the process proceeds to step S11. Perform root scroll output. That is, when the section shown as the guide point V from the point S shown as the next guide point in FIG. 3 is a general road, when the distance L1A between the two points is 3 km or less as shown in the table of FIG. Root scroll output is performed immediately from S. As a result, the route scroll is displayed continuously with the route scroll to the point S.

  Thereafter, it is determined whether or not the route scroll between the guide points has been completed (step S12). If the next guide point has not been reached yet, the process returns to step S11 again to continue the route scroll output. Here, when it is determined that the route scroll between the guide points has been completed, that is, when the route scroll has reached the guide point V in FIG. 3, it proceeds to step S10 to determine whether or not the destination has been reached. When it is not the ground, it returns to step S2 again as described above and repeats the operation.

  If it is determined in step S3 that the road type up to the next guidance point is an expressway, the process proceeds to step S13, and the processing in steps S13 to S18, which is substantially the same as the general road route scroll, is performed. I do. That is, in step S13, it is determined whether or not there is a predetermined distance L1B or more to the next guidance point. For example, when the highway is from the current location P to the next guidance point S in FIG. In some cases, the process proceeds to the next step S14 in step S13, and the route scroll is output from the current guidance point.

  Thereafter, it is determined whether or not a predetermined distance L2B has passed from the current guidance point. The predetermined distance L2B is 300 m on the expressway in the route example of FIG. 3, and therefore when it is determined in step S15 that the predetermined distance of 300 m has not yet passed, the process returns to step S14 again to continue the route scroll. . If it is determined that the predetermined distance L2B has passed 300 m, the process proceeds to step S16 to skip to the predetermined distance L3B of the next guide point. In the example of the route of FIG. 3, the predetermined distance L3B is 1 km, and then the route scroll is output from the point before the next guidance point L3B (step S17).

  Thereafter, it is determined whether or not the route scrolling between the guide points has ended (step S18), that is, whether or not the point S in the route example of FIG. 3 has been reached. When the route scroll output is continued and the route scroll output is continued and it is determined that the route scroll between the guide points is completed by reaching the point S, the process proceeds to the step S10 to determine whether or not the destination is reached as described above. The same operation is repeated thereafter.

  When it is determined in step S13 that the distance to the next guidance point is not greater than the predetermined distance L1B, that is, if it is determined that there is not more than 30 km in the route example of FIG. I do. Further, this operation is repeated until it is determined in step S12 that is whether or not the route scroll between the guide points is ended.

  In FIG. 3, for example, when the highway is from the point S shown as the next guide point to the point V shown as the guide point, and the distance L1 between the two points is not more than 30 km as the predetermined distance L1B of the highway The route scroll is immediately output from the point S to the next guidance point V. When it is determined that the route scrolling between the guide points has been completed, the process proceeds to step S10 in the same manner as described above to determine whether or not the destination has been reached. If the destination has not yet been reached, the step is again performed. Returning to S2, the same operation is repeated thereafter. When it is determined in step S10 that the destination has been reached, this process is terminated.

  In the above embodiment, as a result of performing the above-described configuration and operation as described above, when the route is confirmed after setting the guidance route, or when it is desired to keep the route in mind, When performing a demonstration by outputting the route scroll function at a store that sells navigation, route scroll processing is automatically started along the set guidance route, and the distance between the guide points corresponding to the type of road being scrolled is set. Accordingly, skip processing is performed.

  As a result, the user can quickly guide the point that he / she really wants to know, and during the demonstration, the screen that does not change much is not output for a long time. In addition, during the skip process, guidance by route scrolling can be performed reliably before and after the guidance point, so that it is possible to output route scrolling that is easy for the user to understand, and points that have changed in the demonstration can be effectively used. Can be displayed.

  The navigation apparatus shown in FIG. 1 includes a map display range adjustment type scroll processing unit 24 as route scroll guidance processing, in addition to the guidance skip type scroll processing as described above. For example, an operation flow as shown in FIG. The process is performed by. In the example shown in FIG. 4, the operation of the route scroll map display range adjustment process corresponding to the road type is shown. First, the road type is detected from the current location (step S31). As a result, for example, when it is a detailed road, in step S32, the end point position of the detailed road which is the road type is detected on the guidance route.

  Next, the start point and end point of the same road type are entered and the most detailed map is selected and output (step S33). As a result, as shown in the map display example on the right side of the flowchart of the same figure, the detailed road of the guidance route starting from the current location is displayed as map 1 up to the end point of the detailed road that is the connection point with the next general road. .

  Thereafter, scrolling is displayed so that the vehicle position moves on this map (step S34), and then it is determined whether or not the end point of the same road type has been reached (step S35). As a result of the determination, when it is determined that the end point of the same road has not yet been reached, the process returns to step S34 again to continue the route scroll output on the map. If it is determined that the end point of the same road type has been reached, it is determined whether the end point is a destination (step S36). If the end point is not yet the destination, the road type of the next route is detected ( Step S37), returning to step S32 again, the detected road type road detects the end point of the road type road on the guidance route, that is, the point where the road type road is connected. repeat.

  As a result, as shown in the map display example of the figure, the detailed road portion is displayed on the map 1 from the current position to the destination, the general road on the map 2, the highway on the map 3, the ferry route on the map 4, the map 5 A map of a general road is displayed at, and route scroll output is sequentially performed so that the position of the vehicle moves on each map.

  As a result of such a route scroll output, for a detailed road that travels a relatively short distance, a highway that travels a relatively long distance is carefully route-scrolled by a map whose range is displayed on one screen. With regard to, appropriate route scroll output can be automatically performed, for example, the range is quickly scrolled by a wide area map displayed on one screen.

  The map display range adjustment type scroll processing unit 24 of FIG. 1 further adjusts the route scroll output by adjusting the map display range between the route scroll guidance points as shown in FIG. 5 as the map display range. Can also be done. That is, in the example shown in FIG. 5, the next guidance point is detected first (step S41), and then the most detailed map including the current guidance point and the next guidance point is selected and output (step S42). . As a result, as shown in the map display example shown on the right side of the flowchart of the same figure, a map having the guide points from the current location to the destination as both ends is displayed. Although route scroll output is performed on such a map (step S43), a scroll display in which the vehicle position moves on the fixed map is also performed at this time.

  Next, it is determined whether or not the next guide point has been reached (step S44). If it has not yet been reached, the process returns to step S42 to continue this route scroll output, and it is determined that the next guide point has been reached. When it is determined that the next guide point is the destination (step S45), when it is determined that it is not yet the destination, the process returns to step S41 to detect the next guide point and the operation repeat. When it is determined in step S45 that the next guide point is the destination, this operation flow is ended (step S46).

  As a result of the above operation, the displayed map becomes a detailed map in the section where the guide points are short, and easy-to-understand route scrolling is performed, for example, when traveling on the same national road for a long distance or traveling on a highway In addition, in a section with a long route, it can be displayed on a wide area map, and the route can be quickly scrolled between guide points.

  Further, the scroll speed adjustment type scroll adjustment unit 25 in FIG. 1 performs processing according to an operation flow as shown in FIG. 6, for example. That is, in the example shown in FIG. 6, the road type is detected from the first current location (step S51). Next, the predetermined scroll speed corresponding to the detected road type is read (step S52). As the predetermined scroll speed corresponding to the road type here, as exemplified in the table on the right side of the flowchart, when the scroll speed is set to 1 for the detailed road, the general road is twice as fast, and the national road is 4, The speed ratio is set to 20 on the expressway and 200 times on the ferry route.

  Next, route scroll output is performed at a predetermined speed along the guidance route (step S53), and then the road type of the scroll point is detected (step S54), and it is determined whether or not the road type has been changed (step S55). ). If the road type is not yet changed as a result of the determination, it is determined whether or not the destination has been reached (step S56). If the destination has not been reached yet, the flow returns to step S54 to return to the predetermined speed along the guidance route. The operation of outputting the root scroll is continued, and the same operation is repeated thereafter.

  When it is determined in step S55 that the road type has been changed, the process returns to step S52, the predetermined scroll speed corresponding to the road type is read for the changed road, and the same operation is repeated thereafter. If it is determined in step S56 that the destination has been reached, this process is terminated (step S57).

  By performing the route scroll output as described above, the detailed road performs a slow route scroll to guide the user in an easy-to-understand manner, and on a road like an expressway, the route scrolls quickly and efficiently without waste. Scrolling can be performed.

  Further, in the map display scale adjustment type scroll processing unit 23 of FIG. 1, the scale adjustment type scroll processing unit 46 for each road type can perform a scroll process according to an operation flow as shown in FIG. 7, for example. That is, in the example shown in FIG. 7, the scale change process of the route scroll map display corresponding to the road type is shown, and the road type is first detected from the current location (step S61). Next, a predetermined scroll map scale corresponding to the road type as a result of the detection is read (step S62).

  As illustrated on the right side of the flowchart, the predetermined scroll map scale corresponding to the road type is selected and displayed, for example, for a detailed road with a map scale having a reference length of 10 m on the map screen. Similarly, a map of a scale of 25 m for a general road, 500 m for a national road, 2 km for a highway, and 20 km for a ferry route is selected and displayed.

  Thereafter, route scroll output is performed at a predetermined map scale along the guidance route (step S63), and the road type of the scroll location is always detected in this state (step S64). As a result of the detection, it is determined whether or not the road type has been changed (step S65). If the road type has not yet been changed, it is determined whether or not the destination has been reached (step S66). Returning to S63, route scroll output at a predetermined map scale along the guidance route is performed, and thereafter the same operation is repeated. If it is determined in step S65 that the road type has been changed, the process returns to step S62, the predetermined scroll map scale corresponding to the changed road type is read, and thereafter, the route scroll is performed in the display state of the map scale.

  By performing such route scroll output, it is necessary to give careful guidance to the user, and a detailed road that travels a relatively short distance can be displayed in a small scale detailed map. Thus, on a road that only needs to travel along the road, efficient route scroll output can be performed by quickly scrolling with a wide area map.

  In the map display scale adjustment type scroll processing unit 47 for map display scale adjustment type scroll processing unit 23 of FIG. 1, processing similar to the map display adjustment process between route scroll guide points as shown in FIG. 5 is performed. It can be performed. Further, in the departure destination / distance distance corresponding scale adjustment type scroll processing unit 23 in FIG. 1, the distance data that the route scrolling point by the departure point separation distance calculation unit 50 is separated from the departure point, and the destination approach distance calculation unit Using the distance data of the point where the route scrolling by 50 is approaching the destination, the map scale is enlarged as the distance from the departure point increases, and the wide area map is displayed gradually. The map is reduced in scale as it approaches the destination from the intermediate position, and the detailed map is gradually displayed.

  As a result of providing various scroll processing units as described above, even for navigation devices that are set to perform guidance skip-type scroll processing as a general rule, even for users who think that skip display is not preferable The route scroll output of this mode enables the user to select and perform an efficient scroll display that is more varied than the monotonous scroll display. By doing so, for example, the skip process as described above is performed on a general road even on a general road, and in the case of a detailed road, various map displays such as the map display and scroll output process of any of the above-described FIGS. Depending on the combination, appropriate and effective output can be performed during the demonstration.

  The present invention can be suitably used for the vehicle navigation apparatus as described in the above embodiment, but also as map guidance software for personal computers, navigation software for portable information terminals, or map display software. It can be widely used in similar industrial fields.

It is a functional block diagram of the Example of this invention. It is an operation | movement flowchart which performs a guidance skip type route scroll process in the Example. It is a figure which shows the example in the guidance skip type route scroll process, and the example of the various predetermined distances changed according to the road classification. In the Example, it is an operation | movement flowchart which performs a road classification corresponding | compatible route scroll map display range adjustment process. It is an operation | movement flowchart which performs a map display range adjustment process between route scroll guidance points in the Example. It is an operation | movement flowchart which performs the route scroll speed change process corresponding to a road classification in the Example. In the Example, it is an operation | movement flowchart which performs a route classification corresponding | compatible route scroll map display scale change process.

Explanation of symbols

21 Route scroll output processing part
22 Guide skip type scroll processing unit 23 Map display scale adjustment type scroll processing unit 24 Map display range adjustment type scroll processing unit 25 Scroll speed adjustment type scroll processing unit 26 Route scroll guide method selection unit 27 Guide route information capturing unit 28 Route scroll Information acquisition unit 30 Destination arrival detection unit 31 Road type detection unit 32 Route scroll map data output unit 33 Route guidance output unit 34 Distance detection unit between guide points 35 Guide point arrival detection unit 36 Fade-in / fade-out display control unit 37 Guide Inter-point distance condition satisfaction determination unit 38 General road distance condition 39 Expressway distance condition 40 Predetermined distance arrival detection unit 41 after guide point Predetermined distance for general road 42 Predetermined distance for highway 43 Predetermined distance detector before guide point 44 General Predetermined for road Distance 45 Predetermined distance for expressway 46 Scale adjustment type scroll processing unit for each road type 47 Scale adjustment type scroll processing unit for map display between guide points 48 Scale adjustment type scroll processing unit corresponding to starting point / destination distance 49 Starting point separation distance calculation Part 50 Destination approach distance calculation part

Claims (4)

Scroll output means for scrolling the map along the route from your current location to your destination,
A distance detection means for detecting the distance between the guidance points;
Discriminating means for discriminating whether or not the distance between the guide points is a predetermined distance or more;
When the distance between the guidance point is determined to be different from the first predetermined distance or more depending on the type of the road by the discrimination means, from the point past different second predetermined distance depending on the type of road from the guidance point, the following Skip-type scroll processing means for skipping to the next guidance point part and restarting scrolling without performing route scrolling between points a third predetermined distance before the guidance point depending on the type of road ;
A navigation apparatus comprising : a scale map-based scale adjustment type scroll processing unit for selecting and displaying a map between scales for selecting and displaying a scale map in which both ends of the guide points enter one screen and adjusting a scroll speed . Depending on the state of the guidance route, and the scroll processing means for adjusting the map scale of the scroll, further comprising at least one of the scroll processing means for adjusting the scrolling speed, operates to select one of the scroll processing means 2. The navigation apparatus according to claim 1, further comprising a scroll guidance method selection unit. Depending on the state of the guidance route, and the scroll processing means for adjusting the map scale of the scroll, further comprising at least one of the scroll processing means for adjusting the scrolling speed, select any scrolling processing means, jointly 2. The navigation apparatus according to claim 1, further comprising scroll guide method selection means for performing scroll processing. The navigation device according to any one of claims 1 to 3 , wherein the scroll output is a demonstration output of the navigation device.

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