JP2663336B2 - Map display method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to, for example, a car navigation system.
The present invention relates to a method of displaying map information which is particularly useful for displaying a map of an application system.

[0002]

2. Description of the Related Art In a current car navigation system, it is easy to see map information presented on a display unit, so-called instant information (traffic congestion, accident occurrence, etc.), and how to display such information. The challenge is how to ensure safe driving while listening to or listening. As one method of solving such a problem, an attempt has been made to make the driver recognize map information and the like using not only the driver's visual sense but also the auditory sense. On, auditory, or
It is said that the real space recognized and grasped at that point in time and the synergistic and continuous information presentation space by audiovisual sometimes intersect, hindering judgment on realities that should be prioritized, and threatening safe driving There's a problem.

[0003] In particular, the presentation of instant information or the like appealing to human hearing is transient, the information presented is semi-compulsory, or
There are problems such as being easy to be instructed, and making it very difficult to hear voice information when the driver is focused on driving. In this regard, the visual display can hold the presentation state of the information to be presented for a necessary time, and the selection of other route or the like can be relatively easily selected or judged from the display. For example, the present invention is more useful than temporary information presentation by voice, and therefore, the current method of presenting information for car navigation is mainly visual display.

[0004] By the way, a map display used for car navigation displays a map of a required area on a substantially rectangular display screen of a liquid crystal display or a CRT, and displays a current location on the map information of the displayed area. And a target point or a destination point are displayed by superimposing an arrow, a circle, or the like. A plurality of scales of the map to be displayed are prepared in advance for the same area, and a map display of an arbitrary scale can be selected from among them.

However, in the conventional display mode, for example, even if the current point and the destination point can be displayed on the same screen, not only the display around the two points but also the two points on the display screen and the two points Since the map information other than the surroundings is also displayed at the same level, the amount of information becomes excessive, and to find and set a reasonable route and passing point from the current position to the destination easily and quickly, the above-mentioned It was necessary to become accustomed to displaying such a map with too much information, and to master its interpretation.

For this reason, the map display in the conventional car navigation system is a rectangular display screen even if a limited area around the current point or the destination point is enlarged. To be done together,
Viewing the displayed contents while driving the vehicle is a safety problem and there are too many unnecessary displays as background information. Necessary for visual recognition and understanding of the target roads and facilities with regard to the information around and between the two points,
It may be virtually impossible to see enough information at a glance.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described manner in which map information is displayed on a rectangular display screen in the current car navigation as described above. In displaying the current point and the target point or the destination point on a rectangular display screen, display of unnecessary background information or surrounding information is suppressed, and at a glance, visual recognition and geographical recognition of the destination point or the current point. To provide a display method capable of providing a necessary and sufficient background or surrounding information, or a necessary and sufficient display mode for visual recognition and geographical recognition associated with the current point and the destination point. It is an issue.

[0008]

SUMMARY OF THE INVENTION The object of the present invention, which has been made to solve the above problems, is to provide a liquid crystal or C
When displaying a map of a region as appropriate on a display screen such as an RT, a current position and a target point or a destination point in a navigation display or the like, or a current position or a target point or a destination point in a navigation or the like, The current location is a display area that includes a circular area within the required radius and a sector area surrounded by a substantially sector shape or an inverted triangle expanding at a required angle from the current location toward the target point or the destination point side. The map information included in the display area, and the destination point is surrounded by a circular area within the required radius and a substantially inverted sector or a triangle expanded from the destination point toward the current point side at a required angle. And displaying the map information contained in the display area on the display screen.

[0009]

The display area of the current point is limited to a circular area within a required radius centered on the point and a substantially fan-shaped area extending from the point to the destination, and moving from the current point to the destination. When you do so, only the range that may pass is displayed on the screen, and the map information included in the range is displayed, so that the moving current point follows the directivity indicating the range that may pass later. Display only the current location and its background map information in the range, or only the destination point and its background map information in the approach direction range that may be viewed from the destination point on the display screen. Therefore, since excessive map information is not displayed on the entire display screen, a place that is easy to see and judge for the purpose of visually recognizing the current position, the destination point, or the geographical situation around these points. It is possible to display.

[0010]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view showing a display example of a current location according to the present invention, FIG. 2 is a front view showing an example of a case where the current location moves and a display screen is updated, and FIG. 3 is a display example of a destination location according to the present invention. FIG. 4 is a front view showing an example of a display state for representing a relative relationship between a current position and a destination according to the method of the present invention, and FIG. 5 is a view showing a relative relationship between a current position and a destination according to the method of the present invention. FIG. 6 is a front view showing another example of the displayed image.
FIG. 7 is a front view showing another example of the display showing the relative relationship between the current point and the destination point according to the method of the present invention, FIG. 7 is a front view showing an example of the relative relationship between the current point and a plurality of target points, and FIG. FIG. 9 is a functional block diagram of an example of an apparatus for carrying out the method of the present invention, and FIG. 9 is a flowchart showing an example of an operation of the apparatus of FIG. 8 according to the method of the present invention.

1 and 2, reference numeral 1 denotes a display screen of, for example, a liquid crystal display or a CRT of a car navigation system (hereinafter, referred to as a CNS). A local map or map information is displayed.

However, if the map information of the area in the entire area of the display screen 1 as described above is displayed in full screen, the display of the target point or the destination point, the current point, or the target point is displayed in the display. As described above, it is difficult to read and identify map information of points and areas that are likely to pass through the vicinity.

In the present invention, the following display mode is adopted for the above-described display mode in the known CNS, and this point will be described next.

First, in the display method of the present invention, as an example, the current position Np is displayed on the lower half of the screen 1, specifically,
The display screen 1 is set to be approximately 1/4 from the bottom in the upper and lower widths and approximately in the middle of the left and right widths, and has a small radius circular display area Ca centered on the current point Np and the display area C
a or a fan-shaped display area F which is expanded in a substantially fan shape from the current point Np toward the next target point Sp ₁ (or the destination point Op).
a is set.

The circular display area Ca including the current position Np and the fan-shaped display area Fa in FIG. 1 are set so as to expand upward with respect to the display screen 1, but the directions of the two display areas Ca and Fa are set. May be set rightward (or leftward) with respect to the screen 1.

In the present invention, map information included in the display areas Ca and Fa set with respect to the current location Np, that is, necessary map information such as major roads R and major facilities E are displayed. Therefore, nothing is displayed in the wipe area Dg outside the display areas Ca and Fa in principle.

The map information such as the road R and the facility E displayed in the two display areas Ca and Fa is converted from the known map information which is digitized and stored in an IC card, a CD-ROM or the like. For example, a call is made in a range corresponding to the entire range of the display screen 1, and the called information is displayed with a wipe pattern or a mask corresponding to the outer wipe range Dg. In such a display mode, a known C
The map data in NS can be used as it is.

Further, the current position Np according to the above display mode
Is displayed with a directivity in the area where there is a possibility of passing to the next destination point Sp ₁ (or the destination point Op) going forward with a directivity. Necessary map information, specifically, for example, information of an area located on the opposite side of the current point from the current point to the target point Sp (or the destination point Op) is not displayed on the display screen 1. This is extremely convenient for visually recognizing map information of an area including a possibility of going to the next place and setting a next destination point Sp in traveling.

The current position Np set and displayed on the display screen 1 as described above is similar to the conventionally known CNS.
The vehicle moves on the selected road R in the two display areas Ca and Fa displayed in synchronization with and following the movement of the vehicle. On the other hand, the two display areas Ca and Fa of the screen 1 in FIG.
On the road R which is displayed in a first target point Sp ₁ which currently viewed from the point Np is set.

In the display areas Ca and Fa displayed on the screen 1 of FIG. 1, the target point Sp ₁ is desirably about 3/4 from the lower side 1b of the display screen 1 (about 1/4 from the upper side 1a). may be set to a position, it reached its first target point Sp ₁ and the current point Np moves, the point S
The p _1, such that the next current point Np, the map information displayed on the display screen 1 is sucrose - is Le.

As described above, according to the display method of the present invention, the display areas Ca and Fa of the current position Np displayed on the display screen 1 are displayed.
A plurality of target points Sp ₂ n on the scheduled route, including the first target point Sp ₁ set inside, are sequentially set before reaching the final destination point Op. , current point Np is the display area Ca, in each case sequentially reach the target point Sp ₁ to SP ₂ n in the Fa, is to sequentially update the display contents of the display screen 1.

On the other hand, the final destination point Op is the latest target point viewed from the current point Np, which is sequentially updated as the vehicle travels from the current point Np at the start to the final destination point Op. The next target point Spn _{+ 1} of Spn is displayed as the current destination point Op. Therefore, as illustrated in FIG. 3, the final destination Op (or the next destination Spn _{+ 1} ) is the final destination Op (or the next destination Sp).
n _{+ 1} ) is set at approximately the center about 1/4 below the upper side 1a of the display screen 1 and displayed. A circular display area Da centering on this point Op (or Spn _{+ 1} ) and this display area are displayed. D
A display area Ca of a fan shape, that is, an inverted fan shape formed downward in accordance with the directivity range in which the vehicle enters from a, is set, and map information that falls within the range surrounded by both display areas Da and Fa. That is, the road R and the facility E are displayed.

The destination point Op (or the next destination point Spn _{+ 1} )
Is displayed on the map as shown in FIG. 3 because of the destination point Op (or the target point viewed from the current point Np).
The road R that enters the vehicle at Spn) is a current point Np at the start or intermediate time and a target point Spn as viewed from the point Np.
(Or the next destination point Spn ₊₁ or the destination point Op), the approach route is limited to a certain extent or considerably limited, so that display of map information that is unlikely to go through is avoided. To do that.

By adopting such a display mode,
It is easy and quick to visually recognize and determine the destination point and the target point on the map display. In addition, in relation to the current point Np, what kind of road R passes through is closer to the destination point Op.
Prediction that the user can arrive quickly can be intuitively made just by looking at the display screen 1.

FIG. 4 shows an example of the positional relationship and the azimuth relationship between the current point Np and the destination point Op (or the next destination point Spn _{+ 1} ) as shown in FIG. Is displayed in a simple manner. For example, when the current point Np and the final destination point Op are relatively close to each other, the display of the circular and fan-shaped display areas Ca and Fa centered on the current point Np, the circular display centered on the final destination point Op, and the like. As shown in FIG. 4, the display of the inverted fan-shaped display areas Da and Ga is displayed with an intermediate portion Ma placed so that the relative positional relationship and azimuth relationship between the two can be visually recognized at a glance. .

The fan-shaped portions Fa and Ga of the above both display symbols
The display content of the azimuth relationship between the two points Np and Op changes according to the scale level of the area actually set in the display area of each point. That is, the display symbols of both points Np and Op can be displayed on the same screen 1 at the same scale level, and the two points Np at the same scale scale level, for example, when the distance between the current point Np and the destination point Op is large.
If it is difficult to display in the display area of the display points Op and Op, as an example, the scale level of the area displayed on the display symbols Da and Ga including the destination point Op is increased, and the display area of the two points Np and Op is displayed on the same screen 1. Make the display always possible. In this case, the difference between the scale levels of the displays in both display symbols is clearly indicated by, for example, color-coding the display in the symbols, shading of the colors, or giving numerical values indicating the scale levels to each of them.

Also, two points Np and Op (or Spn)
Of the current point Np or the destination point Op
For the purpose of grasping the sense of distance and azimuth of the intermediate portion Ma viewed from (or the target point Spn), a simple graphic indicating a representative point or facility of the intermediate portion Ma may be displayed. For example, in order to reach the destination point Op (or the next destination point Spn), it is absolutely necessary to pass, so to say, as a unique or indispensable passing point, for example, a bridge Ma1 or a railroad crossing Ma2 is required. Therefore, this is displayed in the area of the intermediate portion Ma as illustrated in FIG.

On the other hand, if the distance between the current point Np, which is the starting point, and the final destination point Op is too long to display both points Np and Op on the same screen 1, as shown in FIG. The display of the intermediate point that is within the same screen as the point Np, that is, the target point Spn may be displayed between the display of the destination point Op. In this case, the display areas Da and Ga for the destination point Op may be displayed as reference display Cd on a different scale using the wipe range Dg on the screen 1 as illustrated in FIG. Further, in the display method of the present invention, some of the plurality of target points Sp _{1 to} Spn set between the current point Np and the destination point Op are displayed in a format adjacent to the display areas Ca and Fa of the current point Np. , May be displayed sequentially and continuously (see FIG. 7). This is useful for visually recognizing and grasping the approximate direction and sense of distance of the route to the target point or destination point Op many steps ahead of the current point Np.

The display mode according to the method of the present invention as described above has the functional blocks illustrated in FIG.
Since this is executed by the CNS device according to the flowchart illustrated in FIG. 9, this point will be described below.

In FIG. 8, reference numeral 2 denotes an input section of the current point Np, 3 denotes an input section of the destination point Op or the destination point Spn,
Reference numeral 4 denotes a central processing unit, which includes a processing unit 4a, a storage unit 4b,
The display unit 5 includes a search unit 4c and a calculation unit 4d, respectively processes inputs from the two input units 2 and 3 and displays a display area Ca of the input current location Np on the display screen 1 of the display unit 5.
Fa and the input destination point Op or the destination point Spn
Are displayed on the display areas Da and Ga, respectively.

The input unit 2 for the current location is a location where the user is on the so-called analog map.
Normally, p is automatically input by a map matching method, GPS, or a position information beacon, but indicates the address and the place name of the point Np, or the facility name of the point, and the coordinates of the point. It may be input by a code or the like. And said the closest first target point Sp ₁ is currently set from the point Np on the current location point Np on the path leading to the final destination point Op, hereinafter, in the same manner following the target point Sp ₂ next target Data such as the point Sp ₃ is input and set to the final destination point Op.

[0032] and the point Np current, the first target point Sp ₁ from the point Np, in other words, in the current point Np moves data of the first target point Sp ₁ to be the current position of the following: - the data, the current When an input is set in the point input unit 2, the input data is processed in the processing unit 4a of the central processing unit 4, and the data of the map information stored in the storage unit 4b is retrieved by the search unit 4c.
Is searched for.

[0033] The search unit 4c, in the map information stored in the storage unit 4b, the two-point Np, Sp ₁ de - extracting search map information of a specific area with data, the search de - data Is processed into image data by the calculation unit 4d and displayed on the display unit 5d.
The display unit 5 displays a map based on the image data on the display screen 1 within the range of the display areas Ca and Fa. This is the current point Np and the first target point Sp ₁ of the map display shown in FIG.

The current point Np and the first target point in FIG.
After displaying Sp ₁ together with map information serving as a background in the two display areas Ca and Fa, the current position Np moves on the road R, for example, with the movement of the vehicle carrying the system of the present invention. . This point is the same as the known CNS, but in the present invention, when the current point Np reaches the first target point Sp ₁ in the display of FIG. 1, the target point Sp ₁ becomes the next current point Np. Then, the map information on the screen is scrolled.

[0035] The scroll - le, the first target point becomes the current point Np by the movement of the vehicle Sp ₁ and the next target point Sp ₂
Correspond to the display areas Ca and Fa of the display screen 1 in FIG.
It is displayed at the current location point Np and the first target point Sp ₁ and the same aspect of. In this way, the current point Np and the plurality of target points Spn are updated one after another as the vehicle moves,
In the actual running of the vehicle, the current point Np and the target point
The relationship between Sp _{1 and} Spn is that the current point Np is always the next target point.
Sp _{1 to} Spn are not always reached.

For example, there is a case where the route is suddenly changed due to a situation such as a traffic stop or a traffic jam. In the present invention, in principle, when the moving current point Np reaches the display update area Dc shown in FIGS. 1 and 2 within the outline of the display areas Ca and Fa, the display is updated at the arrival time. However, when the moving current point Np deviates from the outline of the display areas Ca and Fa, as an example, on condition that the moving current point Np crosses the outline of the display area, the crossing point is determined as the current point. It displayed as Np is updated, Le - the current point Np based on preparative change over position in approximately the center of the circular display area Ca, following along with the target point Sp ₂ that has been set in advance, the display area Ca, in the Fa Display. This allows the driver to
Reached by the door changes, and may be operated from the current point Np to be newly displayed on the display screen 1 with the aim of following target point Sp _2.

The display of the method of the present invention is shown in FIG.
Since this is executed through a procedure based on the chart, this point will be described next. First, the apparatus is turned on and the display operation is started in step S1. Next, in step S2, the current position Np is automatically input by receiving a radio wave such as a map matching method, a GPS, or a position information beacon. The current location Np can also be manually entered with its address, place name, facility name representing the location, telephone number, and the like. This input can also be made through the mobile communication means, for example, through a medium for providing such information providing service.

When the input setting of the current point Np as the starting point is completed, the destination point Op and the route to the destination point Op are set.
In other words, the names of the roads R to be passed, etc., and a plurality of target points Sp _{1 to} S which are set at an appropriate pitch on the passing route.
pn is input in steps S3 and S4.
The procedure for inputting the target points Sp _{1 to} Spn is based on the address, the place name, the facility name representing the point, and the telephone number, as in the case of the manual input of the current point Np. The target point Sp ₁ ~Spn the middle by applying the calculation program such as an automatic routing, for example, for example, typically crossover points on the calculated appropriate within a certain distance away section of the route, or, A plurality of target points Sp _{1 to} Spn to the destination point Op are sequentially determined by determining the points on the route in the section and in the set display update zone as the target points. It is also possible to set automatically.

At steps S2 to S4, the current point Np as a starting point and a plurality of target points as passing points
When the setting inputs of Sp _{1 to} Spn and the final destination point Op are made, in step S5, the current point Np and the first destination point Sp ₁ , the first destination point Sp ₁ and the second destination point Sp ₂ , and so on. , A point that becomes the current point over time as the traveling progresses and a point that becomes the next target point when viewed from this point Sp _{1 to} Spn
Are displayed as map information on the current point side in the display areas Ca and Fa.
, The display order is set in the order of the passing points.

On the other hand, in the sixth step S6, the current position destination point Op, a third target point Sp ₃ of the third target point Sp ₃ at that stage with a point a second target point Sp ₂ Currently At the same time, the display areas Da and Ga viewed from the destination point side are set in the order of the passing points, for example, the fourth target point Sp ₄ is set as the destination point Op at that stage.

As described above, the display areas Ca and Fa for viewing the target point or the destination point from the current point side, and the display area D for viewing the current point from the target point side or the destination point side.
When “a” and “Ga” are set, the type of map information to be displayed in each of the display areas Ca and Fa and the display areas Da and Ga in the respective display stages, for example, roads and place names, or facility names are displayed. Are set in steps S7 and S8.

In the ninth and tenth steps S9 and S10,
An update zone D is an example of a display content update condition in each display area Ca, Fa of each stage, and also in Da, Ga.
The setting of c is made. In the eleventh step S11, the current point Np and the destination point Op (or the next target point Sp)
The relative position with respect to n) and the azimuth relationship between the fan-shaped and inverted fan-shaped display areas are switched and displayed on the same screen by the symbol figure set in steps S5 and S6, or the display screen 1 is wiped. The display conditions are set so that the display in the range Dg and the display on the head-up display (HUD) are performed.

In the twelfth step S12, by inputting a display command by designating display areas Ca, Fa, etc., such as the current location Np, with respect to the display contents and display conditions set by the above procedure, for example, Screen 1 displays the map information from the current location Np to the final destination Op.
The display is automatically or manually updated in each of the above display areas.

At this time, the map data in which the essential passing points Ma1, Ma2, etc. are set to be displayed in the middle part Ma between the graphic symbols Ca, Fa, Da, and Ga of the display symbols of the current point Np and the destination point Op. If there is a data, step S11
The data Ma1 and Ma2 of the required passing points are displayed in synchronization with the symbol display relatively displayed by the above. Further, the scale levels of the map information in steps S5 and S6 are processed in a display mode set in advance. For example, the difference between the display scales of the display symbols Ca and Fa and Da and Ga is determined by color coding and color coding. It is displayed in such a way that it can be identified by its shading or the numerical value displayed.

In a thirteenth step S13, the apparatus for carrying out the method of the present invention receives real-time information,
If it is formed on a CNS device that can transmit and receive information,
The real-time traffic information such as traffic congestion, suspension of traffic, accidents, etc., from the IF or the installed beacon Be is used as the current position Np, the target position Spn, or the situation change in those areas in step S
7. The above-mentioned information and data are transmitted to the setting section in S8 and S8, and the colors of the roads displayed in the display areas Ca and Fa, similarly to Da and Ga are changed, or a predetermined simple symbol symbol is displayed. To display or display area C
a, Fa, Da, Ga, and their intermediate portion Ma are displayed using a sign for notifying a change in the situation in the display area, for example, a blinking display or the like.

On the other hand, in the case where traffic control or the like is performed in the display area as a traffic control, it is possible to change the direction of the sector, which is the figure of the display symbol, by radio waves. In this case, first, in step S5,
The change of the display area set in S6 is performed automatically or arbitrarily by transmission and reception with the information center.

[0047]

According to the display method of the present invention, as described above, the necessary and sufficient map information is used for passing from the current point of the departure point to the final destination via a set area including a plurality of intermediate destination points. And the relative positional relationship and azimuth relationship for judging the traveling direction and approaching direction to the destination as required, the following effects can be obtained.

The map information about the approximate route from the current point to the destination point is defined as a range set with directivity around the current point and beyond, as a range where there is a possibility of passing from now on. Is displayed in a display area set in a predetermined shape in advance, so that it is very quick and accurate to visually recognize, discriminate, or grasp a road or a facility around the road, or a target point, which is likely to travel in the future. It can be carried out.

In addition, as viewed from the next target point or destination point, the direction in which the vehicle is approaching and the roads having directivity in that direction are displayed in a display area of a predetermined shape. Alternatively, it is possible to easily and quickly recognize and grasp what kind of point the user is currently looking at from the target point only by looking at the map display.

As described above, according to the display method of the present invention, the present point and the destination point or the target point are determined based on the map information such as roads, facilities, and their names included in the display area provided with directivity centering on both points. Since the display is limited to a range in which there is a possibility of passing, for example, unlike a conventional display of a set route by a line based on automatic route setting, a plurality of routes that may travel on a route that the user wants to travel are included. Can be visually confirmed and grasped. As a result, it is possible to provide driving support with autonomous decentralization of traffic.

Further, according to the display mode according to the method of the present invention, even a CNS having no additional functions such as a voice guide and an enlarged display near an intersection can be grasped as well as a CNS having such additional functions. In addition, the visual recognition load is reduced by the reduced amount of presented information, and easy recognition becomes possible. Therefore, the display method of the present invention greatly contributes to simplification of the configuration of the CNS itself, reduction in cost, and operability.

Further, recently, the service started CN
When the traffic information for S is taken into the CNS employing the display method of the present invention, only the traffic information directly related to the area displayed on the display screen from the current position set by the present invention to the final destination is set. Is displayed in real time by matching it with the map information displayed by the method of the present invention in real time. Can be set quickly and easily.

The present invention is as described above. For example, in the case of a car navigation system (CNS), it is necessary and sufficient to avoid display of excessive information and to move from a current position to a destination. Since the map information is displayed, CN
The simplification of S itself and the easy-to-understand display can be realized at the same time.

In the present invention, the background information can be displayed on the display screen of the console section, and the HUD can display only the relative symbol figure of the current point and the target point or the destination point separately. Once the information update rules (setting conditions) are learned, driving assistance that is effective only with the display of the HUD,
It becomes possible with a sense of security that there is no mistake in my recognition and understanding. In this case, for example, at a stop or any other timing, a symbol figure including a plurality of target points to the destination is displayed continuously or simultaneously, so that the target point is reached from the current point. Path or direction can be recognized in a pattern, and it can be accurately imaged.

According to the display method of the present invention as described above,
For example, the navigation display of an off-road area including a road and a waterway for a vehicle such as a hovercraft or an off-road vehicle whose traveling path is not limited to a road such as a water surface, a land, or a wetland can be displayed. become. This is a method in which the conventional CNS displays necessary information centering on a road under the assumption that a moving object moves along a limited road, whereas the display method of the present invention is Since information on a predetermined area including a target point and a destination point and having directivity is displayed in the display area, for example, a hovercraft or off-road vehicle may be displayed in the area displayed in the display area. Also, points that cannot be passed or dangerous areas that should not be approached, etc. are displayed in advance in sections or displayed in a dotted manner, so that the driver can voluntarily select a part where the driver can proceed as a passage or route, It can also be used as navigation for proceeding.

Further, according to the display method of the present invention, a space such as underwater, air, space, etc. can be two-dimensionally displayed in the same manner as in the previous embodiments. Also,
According to the display method of the present invention, an area is set using a directional three-dimensional frame, and three-dimensional graphics or three-dimensional background information based on three-dimensional holography is displayed on the display frame, thereby enabling effective display in a three-dimensional space. It can be expected to be applied to a simple navigation display. For example, a moving object that is normally invisible, such as a front view while the moving object is traveling at a very high speed, a view in the dark, or an operation of a micro robot by microtechnology, etc. According to the moving ability characteristics of the moving object,
By displaying the background information on the three-dimensional frame, the pilot of the moving body, which cannot actually visually recognize the real information, actually takes a safety measure while operating the moving body, Anxiety can be resolved.

[Brief description of the drawings]

FIG. 1 is a front view showing a display example of a current position according to the present invention.

FIG. 2 is a front view showing an example of a case where a current point moves and a display screen is updated.

FIG. 3 is a front view showing a display example of a destination according to the present invention.

FIG. 4 is a front view showing a display example representing a relative relationship between a current point and a destination point according to the method of the present invention.

FIG. 5 is a front view showing another example of the display showing the relative relationship between the current point and the destination point according to the method of the present invention.

FIG. 6 is a front view showing another example of the display showing the relative relationship between the current point and the destination point according to the method of the present invention.

FIG. 7 is an exemplary front view showing a relative relationship between a current point and a plurality of target points.

FIG. 8 is a functional block diagram of an example of an apparatus for performing the method of the present invention.

FIG. 9 is a flowchart showing an example of the operation of the apparatus of FIG. 8 according to the method of the present invention.

[Explanation of symbols]

Reference Signs List 1 display screen 2, 3 input unit 4 central processing unit 4a processor of central processing unit 4b storage unit 4c map data search unit 4d search data calculation unit 5 display unit Np current point Op destination point Ca circular display area Fa Fan-shaped display area Da Circular display area Ga Inverted fan-shaped display area Dg Wipe range Sp _{1 to} Spn Target point R Road E Facility

Claims (11)

(57) [Claims] When displaying an area map as appropriate on a display screen such as a liquid crystal display or a CRT, a current point and a target point or a destination point in a navigation display or the like, or a current point or a target point in a navigation or the like. A point or a destination point, and a current point is a circular area within the required radius and a sector surrounded by a substantially sector shape or an inverted triangle expanded from the current point toward the target point or the destination point side at a required angle. The map information included in the display area with the range as the display area, and the destination point is a circular range within the required radius and the general shape expanded from the destination point toward the current point side at a required angle. A map display method, wherein a reverse sector or an inverted sector surrounded by a triangle is used as a display area, and map information included in the display area is displayed on the display screen. Law. 2. The display area of the fan-shaped range displays a planned passing point including a road located a required distance from the current position, at a position substantially at the center of the expanded side in the display area of the fan-shaped range. Map display method. 3. In the display area of the fan-shaped area, a main road which is a required distance away from the current point and forms a part of the route from the target point to the destination point is displayed as an enlarged side in the display of the fan-shaped area. 2. The map display method according to claim 1, wherein the display is performed so as to pass through a substantially center of the side. 4. In the display area of the inverted sector, a passing point including a target point or a road located in front of the required distance from the destination is located substantially at the center of the display area of the inverted sector on the widening side. The map display method according to any one of claims 1 to 3, wherein the map is displayed while being positioned. 5. In the display area of the inverted fan-shaped area, a main road which is located a short distance from a target point or a destination point and forms a part of a route to the destination point is displayed. The map display method according to any one of claims 1 to 3, wherein the map is displayed so as to pass through a substantially center on an expanded side in the area. 6. The map display method according to claim 2, wherein the displayed scheduled passing point is a point specified by any one of a main building name, a facility name, a place name, and an address. 7. The map display method according to claim 3, wherein the displayed main road is specified by a road width, the number of driving lanes, or a road facing a main facility. 8. The display includes at least the contents of a road width, a road name, a name of a main facility facing the road to be displayed, a place name, and a road regulation selectively or together with each other. The map display method according to any one of claims 1 to 7, wherein is displayed in different display modes. 9. The display screen of the present location is updated on condition that the moving current location exceeds a required position preset in the display area in the current location display area. Any map display method. 10. The map display method according to claim 1, wherein the directions of the display areas of the sector-shaped range and the inverted sector-shaped range are one of a vertical direction and a horizontal direction. 11. The map display method according to claim 1, wherein a relative positional relationship between the current point and a target point or a destination point is displayed on a display screen using a sector display symbol and an inverted sector display symbol. .