JP2007147358A - Method for scrolling travel guide map and navigation system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for scrolling a travel guide map and a navigation system, which can display the travel guide map including a desired point in a short time by performing a small number of scrolling key operations. <P>SOLUTION: The method for scrolling the travel guide map wherein a plurality of point name display panes which specify points existing anterior to the position of a vehicle on a highway, are disposed in distancing order from the position of the vehicle, comprises: a step (1) of selecting a skip function for skipping points other than a desired class, as well as selecting the desired class when scrolling the travel guide map; and a step (2) of displaying points in selected classes at respective scrolling key operations by using the travel guide map in the distance order from the position of the vehicle. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a scrolling method and a navigation device for a travel guide map, and in particular, a plurality of point name display frames for specifying points on a highway existing ahead of a vehicle position are arranged in order from the vehicle position. The present invention relates to a stroke guide diagram scrolling method and a navigation apparatus for displaying a stroke guide diagram.

The navigation device reads out map data corresponding to the current position of the vehicle from a map data storage unit such as a DVD or a hard disk HDD, draws a map around the vehicle on the display screen, and also displays a mark ( The vehicle position mark) is moved on the map, or the vehicle position mark is fixedly displayed at a certain position on the display screen (for example, the center position of the display screen) and the map is scrolled. The navigation device also has a function for correcting the vehicle position by map matching processing, a route guidance function for searching for a guidance route to the destination and displaying it on the map, an intersection guidance function, and other functions.
The map display format for navigation includes head-up display with the driving direction directly above the screen, north-up display with the north direction of the map directly above the screen, and a map viewed from a predetermined height behind the vehicle. There are a bird view display and a two-screen display that divides the screen into two. The two-screen display is a two-screen display that displays two maps with different scales on each divided screen, and a process that displays a map around the vehicle at a predetermined scale on one side and a route guide map for the expressway on the other. There is a guide diagram display (skewer display).

FIG. 8 is an explanatory diagram of the process guide diagram display. As shown in FIG. 8 (a), in a state where the map MP around the vehicle is displayed on the screen 1 at a predetermined scale, a guidance route to the destination is searched, and if there is a highway in the guidance route, FIG. As shown in (b), the screen is divided into two, the vehicle periphery map MP1 is displayed on one screen 2, and the travel guide map MP2 is displayed on the other screen 3.
9 (a) to 9 (c) are examples of highway route guide map display, which specify interchange (highway entrance / exit) IC, service area SA, parking area PA, junction (highway branch) JCT, toll gate TG, etc. The four point name display frames HPN1 to HPN4 are arranged so as to cross the straight line HW representing the expressway, and the area names are displayed in the display frames in order from the vehicle position. Although not shown, the distance between the points, the estimated arrival time, the facilities in the service area, and the like are displayed in the frame or adjacent to the frame.

  As shown in Fig. 10, in order from the front of the vehicle on the highway, (1) Interchange IC1, (2) Service area SA, (3) Interchange IC2, (4) Tollgate TG, (5) Junction JCT, ( 6) If there is an interchange IC3, the navigation device will first display the process guide diagram shown in Fig. 9 (a). If the vehicle continues at high speed and passes the interchange IC1, it will be shown in Fig. 9 (b). When the process guide map is displayed and the vehicle continues to travel at a high speed and passes through the service area SA, the process guide map shown in FIG. 9 (c) is displayed, and so on. According to the highway route guide map display, the driver can always know the name of the interchange IC, service area SA, parking area PA, junction JCT, toll gate TG, distance to the front, distance to travel. You can prepare for getting off or preparing for a stop.

Such a highway travel guide map can be scrolled. That is, each time the scroll key is pressed, the next stroke guide map can be displayed on the assumption that the most recent point has been passed. Therefore, when it is desired to know all the service areas SA and facilities in the service area before getting off the expressway, the stroke guide map including the service areas SA may be sequentially displayed by operating the scroll keys. Further, when it is desired to know the branching situation at a predetermined junction JCT, the distance to the junction, the required time, etc., the stroke guide diagram including the junction JCT may be displayed by operating the scroll key.
By the way, if the mileage of the expressway to the destination is long, many (N) interchange ICs, service area SA, parking area PA, junction (high-speed branch) JCT, toll gate TG, etc. Exists. In such a case, in the conventional stroke guide diagram scroll, N times of scroll key operations are required to know the facilities in all the service areas SA. Further, even when it is desired to know the branching situation at a predetermined junction JCT, the distance to the junction, the required time, etc., the scroll key operation of the number of points existing up to the junction is required. There is no problem when the number of points is small, but as the number of points increases, the number of times the scroll key is operated increases, causing a problem that the operation becomes troublesome.

FIG. 11 and FIG. 12 are scroll explanatory views of the conventional process guide diagram, in which the screen is divided into two, the vehicle periphery map MP1 is displayed on one side, and the process guide map MP2 is displayed on the other side. The guide route is assumed to be from a predetermined point in Iwaki city to a predetermined point in Nagoya city.
In the process guide map MP2 of FIG. 11 (A), a process map from the vehicle position → the intersection in front of the high speed entrance → the high speed entrance → the toll gate is displayed. The soft key SCU displayed below the travel guide map MP2 is an up scroll key that advances the travel guide map by one point in the direction of the destination, and the soft key SCD is a down scroll key that returns the travel guide map by one point in the direction of the destination. It is.
In order to display the target point name in the process guide diagram, it is necessary to appropriately press the up scroll key SCU and the down scroll key SCD from the state shown in FIG. Fig. 11 (B) shows an example of the Misato Tollgate on the Joban Expressway by operating the scroll key several times. Fig. 12 (A) shows the Horikiri on the Metropolitan Expressway No. 6 Misato Line by operating the scroll key several times. An example of displaying an interchange (highway exit), FIG. 12 (B) is an example of operating the scroll key several times to display the expressway exit of Nagoya Expressway No.1 楠 line.
To display the process guide diagrams shown in FIGS. 11 (B), 12 (A), and (B) from the state of FIG. 11 (A), a large number of scroll key operations are required.
As a conventional technique, there is a technique for providing a driver with facility information existing in a parking area PA or a service area SA on an expressway when traveling on an expressway (see Patent Document 1). In this conventional technique, when a predetermined information key (for example, a key for designating a gas station) is operated during traveling on an expressway, information on PA / SAs where the gas station exists is displayed in the order of a predetermined number.
JP 2004-354260 A

The above prior art does not relate to the scrolling of the highway road guide map, and in particular, does not scroll the travel guide map including a desired point.
Accordingly, an object of the present invention is to display a stroke guide diagram including a desired point in a short time with a small number of scroll key operations.

According to the present invention, the above-described problem is a process for displaying a process guide diagram in which a plurality of point name display frames for specifying points on the expressway existing ahead of the vehicle position are arranged in order from the vehicle position. This is achieved by a method of scrolling a guide diagram and a navigation device.
The scroll method of the process guide diagram of the present invention selects the skip function for skipping a point other than the desired type when scrolling the process guide diagram, and selects the desired type every time the scroll key is operated. There is a step of displaying the selected type of points in a stroke guide diagram in the order closer to the vehicle position.
The navigation device of the present invention selects a skip function for skipping points other than the desired type when scrolling the travel guide map, and the skip function selection unit for selecting the desired type, each time the scroll key is operated. A control unit that performs control for displaying the selected type of points in order of distance from the vehicle position in the travel guide map, and a display unit that displays the travel guide map together with the map are provided.

  According to the present invention, when the stroke guide map is scrolled, the skip function for skipping a point other than the desired type is selected, the desired type is selected, and the selected type of point is selected each time the scroll key is operated. Are displayed in the process guide map in the order closer to the vehicle position, it is possible to display the process guide map including a desired point in a short time with few scroll key operations.

  The present invention is a method of scrolling a travel guide diagram in which a plurality of point name display frames for specifying points on a highway existing ahead of a vehicle position are arranged in order from the vehicle position. In the process of scrolling the travel guide diagram, when the travel guide diagram is scrolled, the skip function for skipping points other than the desired type is selected and the desired type is selected, and the selected each time the scroll key is operated. The types of points are displayed in the process guide diagram in the order closer to the vehicle position.

(A) Outline of the Present Invention FIG. 1 is an explanatory diagram of the best mode for carrying out the present invention. The screen is divided into two parts, a vehicle periphery map MP1 is displayed on one side, and a travel guide map MP2 is displayed on the other side. ing. The journey guide map MP2 displays a journey map from the vehicle position → intersection → high speed entrance → toll gate. The soft key SCU displayed below the travel guide map MP2 is the up scroll key that advances the travel guide map toward the destination, the soft key SCD is the down scroll key that returns the travel guide map to the destination direction, and the soft key SKP is the desired key This is a skip key for selecting a skip function for skipping points other than the type, and for selecting the desired type. Each time this skip key is pressed, the display of the key part changes as follows: skip → high speed branch → toll booth → high speed SA / PA → high speed entrance / exit → skip →.
If you press the up-scroll key SCU with "High-speed branch" selected, the route guide will skip all points except the high-speed branch point each time it is pressed, and have high-speed branches (junctions) in order from the destination direction. The figures are displayed sequentially. In addition, if you press the up scroll key SCU with "Tollage" selected, you can skip all points except the toll booth each time you press it, Display sequentially. Similarly, it is possible to skip a stroke guide map having a high speed SA / PA or a high speed entrance / exit. The above is the case where the up-scroll key SCU is pressed, but if the down-scroll key SCD is pressed, the stroke guide map at the selected point can be skipped and displayed in the direction of the departure place. If the scroll key is pressed when the display of the skip key SKP is “skip”, the stroke guide map can be scrolled one point at a time each time the key is pressed. In the above, high-speed SA and high-speed PA are combined into one, and high-speed entrance and high-speed outlet are combined into one. However, high-speed SA and high-speed PA are considered as different points, or high-speed inlet and high-speed outlet are separated. It can be changed to skip → high speed branch → toll booth → high speed SA → high speed PA → high speed entrance → high speed exit → skip →….

FIG. 2 shows that in the state shown in FIG. 2A (the same state as FIG. 1), select “fast branch” with the skip key SKP (FIG. 2B), and then press the up scroll key SCU. This is an example of the “Horikiri Interchange (highway exit)” on the Misato Line of Metropolitan Expressway 6 (Fig. 2 (C)). When the scroll key is operated, points other than the “high-speed branch” are skipped, so that it is possible to display a process guide diagram including a desired high-speed branch in a short time with a small number of scroll key operations.
FIG. 3 shows that in the state shown in FIG. 3A (the same state as FIG. 1), select “toll booth” with the skip key SKP (FIG. 3B), and then press the up scroll key SCU. This is an example of displaying the Misato Tollgate on the Joban Expressway (Fig. 3 (C)). When the scroll key is operated, points other than “the toll gate” are skipped, so that it is possible to display a process guide map including a desired toll gate in a short time with a small number of scroll key operations.
FIG. 4 shows that in the state shown in FIG. 4A (the same state as FIG. 1), select “high speed exit” with the skip key SKP (FIG. 4B), and then press the up scroll key SCU. This is an example of the highway exit of Nagoya Expressway No. 1 楠 Line (Fig. 4 (C)). When the scroll key is operated, points other than the “high-speed exit” are skipped, so that it is possible to display a stroke guide diagram including a desired high-speed exit in a short time with a small number of scroll key operations.

(B) Configuration of Navigation Device FIG. 5 is a configuration diagram of the navigation device of the present invention.
Map data is recorded on a map recording medium (CD-ROM, DVD, etc.) 11 and can be read as necessary. The map data includes a road layer used for guidance route search and map matching, a background layer for displaying objects on the map, a character layer for displaying characters such as city names on the map, and the like. The operation unit 12 is used to operate the navigation device body 10 and includes a remote controller, operation hard keys, and the like.
The GPS receiver 3 receives position information sent from a GPS satellite and measures the absolute current position of the vehicle. The self-contained navigation sensor 14 includes an angle sensor 14a such as a gyro for detecting the rotation angle of the vehicle and a distance sensor 14b that generates a pulse at every fixed travel distance, so that the current position of the vehicle can be estimated independently. Yes. The navigation device 10 uses GPS and a self-contained navigation sensor in combination, and appropriately performs map matching to estimate the current vehicle position.
The touch panel display device 15 displays a vehicle periphery map, a travel guide map, other guidance information, a menu, and the like according to instructions from the navigation device 10. In addition, the touch panel display device 15 is configured to input a predetermined command to the navigation device 10 when a soft key (skip key SKP, scroll key SCU, SCD, etc.) displayed on the screen is pressed.

In the navigation device 10, the map buffer 21 stores map data read from a map recording medium. The control unit 22 is based on various information and commands input via the interfaces 23 to 26, (1) calculation control of the current position of the vehicle, (2) map reading control for reading out map data around the vehicle into a buffer, (3) Guidance route search control, (4) Map matching control, (5) Process guide map display, process guide scroll control, and the like are executed. The map drawing unit 27 generates a map image using the map data read to the map buffer 21 and writes it to the VRAM 28. The image reading unit 29 cuts out a predetermined image portion from the VRAM 28 in accordance with an instruction from the control unit 22. To the image composition unit 30.
The guidance route memory 31 records the guidance route information to the destination searched by the control unit 22, that is, the position data of all nodes constituting the guidance route from the departure point to the destination. FIG. 6 is a storage example of the guidance route memory 31. The position data of all nodes constituting the guidance route, the intersection flag indicating whether it is an intersection, the highway flag indicating that it is a node on the expressway, and the expressway node Attributes (high-speed branch JCT, toll gate TG, service area SA, parking area PA, high-speed entrance / exit INT, etc.), highway node name (JCT name, toll gate name, SA name, PA name, high-speed entrance / exit name) Etc.) are stored.

The guide route drawing unit 32 generates a guide route image using the guide route information, inputs it to the image composition unit 30, and highlights it on the drawing map. The operation screen generation unit 33 generates various menu screens (operation screens) and inputs them to the image composition unit 30, and the mark generation unit 34 generates various marks such as a vehicle position mark and a cursor and inputs them to the image composition unit 30. . The process guide diagram generating unit 35 generates a process guide diagram MP2 shown in FIGS. 1 to 4 and inputs it to the image composition unit 30.
If there is no highway on the guidance route, the image composition unit 30 displays various marks and guidance route images on the entire screen superimposed on the map image read from the VRAM 28. However, if there is an expressway on the guidance route, the screen is divided into two as shown in FIG. 1, the vehicle periphery map MP1 is displayed on one of the divided screens, and the travel guide map generating unit 35 is displayed on the other divided screen. The image is synthesized so as to display the process guide map MP2 generated in.

(C) Stroke Guide Scroll Control FIG. 7 is a process flow of stroke guide scroll control according to the present invention.
As shown in FIG. 1, when the travel guide map MP2 is displayed on the screen (step 101), it is determined whether a normal travel guide scroll operation has been performed (step 102), that is, the spot type is selected by the skip key SKP. Check that the scroll keys SCU and SCD are operated, and if “YES”, the normal stroke guide scroll display is performed (step 103). That is, each time the scroll key SCU is pressed, the process guide map MP2 in which the process is performed in one point in the direction of the destination is displayed, and each time the scroll key SCD is pressed, the process in which the process is returned in the direction of the start point by one point. The figure MP2 is displayed.
On the other hand, if “NO” in the step 102, it is checked whether the skip key SKP is pressed, that is, whether the stroke guide skip function is started (step 104). If the skip key SKP is not pressed, the process returns to step 101. If the skip key SKP is pressed, it is determined which point type has been selected (step 105).

When `` High-speed branch '' is selected, every time the scroll key SCU is operated, all points except the high-speed branch point (junction) are skipped, and a process guide map having high-speed branches in order from the destination direction is displayed. Display sequentially (step 106). When the scroll key SCD is operated, the process guide map is returned to the departure direction.
When `` Toll booth '' is selected, every time the scroll key SCU is operated, all points except the toll booth are skipped, and a process guide map having the toll booths in the order of the destination direction is displayed in order ( Step 107).
When “High speed entrance / exit” is selected, every time the scroll key SCU is operated, all points except the high speed entrance / exit are skipped, and the process guide has the high speed entrance / exit in order of the destination direction. The figures are sequentially displayed (step 108).
When SA / PA is selected, every time the scroll key SCU is operated, all points except SA / PA are skipped, and a process guide map having SA / PA in order of the destination direction is sequentially displayed. (Step 109).
As described above, according to the present invention, when the stroke guide map is scrolled, the skip function for skipping a point other than the desired type is selected, the desired type is selected, and the point of the selected type is selected each time the scroll key is operated. Are displayed in the closest order, so that a stroke guide map including a desired point can be displayed in a short time with few scroll key operations.

It is the best form explanatory drawing for carrying out the present invention. It is a stroke guide scroll display example when a high-speed branch is selected by a skip key. It is a travel guide scroll display example when a toll booth is selected by a skip key. It is a stroke guide scroll display example at the time of selecting a high speed exit with a skip key. It is a block diagram of the navigation apparatus of this invention. It is the example of a memory | storage of a guidance route memory. It is a processing flow of stroke guide scroll control of the present invention. It is explanatory drawing of a process guide figure display. It is a process guide map display example of a highway. It is explanatory drawing of the process guide map display of a highway. It is scroll explanatory drawing of the conventional process guide figure. It is another scroll explanatory drawing of the conventional process guide figure.

Explanation of symbols

MP1 Vehicle area map
MP2 process guide map
SKP skip key
SCU up scroll key
SCD down scroll key

Claims (2)

In the scroll method of the process guide diagram, in which a plurality of point name display frames that specify points on the expressway existing ahead of the vehicle position are arranged in order from the vehicle position,
When scrolling the process guide diagram, select a skip function to skip points other than the desired type and select the desired type,
Each time the scroll key is operated, the selected type of point is displayed in a stroke guide diagram in the order closer to the vehicle position.
A method of scrolling a process guide diagram characterized by the above. In a navigation device for displaying a route guide diagram in which a plurality of point name display frames for specifying points on a highway existing ahead of a vehicle position are arranged in order from the vehicle position,
When scrolling the process guide diagram, a skip function selection unit that selects a skip function that skips points other than the desired type and selects the desired type,
A control unit that performs control to display the selected type of points in the order closer to the vehicle position in a stroke guide diagram each time the scroll key is operated,
A display unit for displaying the process guide map together with a map;
A navigation device characterized by comprising:

Images