JPH03137681A - Navigation device for moving body - Google Patents

Abstract

PURPOSE:To make the information to a target visible by constituting the device so that when a symbol pattern is operated, a symbol pattern of the target is displayed on other area than a peripheral part of a map screen, but it is not displayed on other part. CONSTITUTION:When an operator executes a selecting operation for reading out map information from a CR ROM and displaying it on a screen of a CRT 26, various operation patterns S are displayed on a peripheral of the screen. Subsequently, automobile position data is read out, and automobile position mark M is displayed. Subsequently, when a service mark S1 in a pattern S is brought to touch operation, a mesh pattern P is displayed on the peripheral part. In this case, a mark H for showing a hotel being a service symbol mark is displayed on other area than the peripheral part. In this case, when an arbitrary hotel is selected, detailed data of its hotel is displayed on the screen. Accordingly, when it is desired to obtain service information, the operator can view a service mark which is not hidden in the operation pattern S of the screen, and its location can be known properly.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a navigation device installed in a moving body such as an automobile, and in particular, displays a map, the current position of the automobile, a traveling trajectory, etc. on a display such as a cathode ray tube. The present invention relates to a navigation device for a mobile body that displays driving information to a driver.

(Prior art) Navigation devices installed in moving objects such as automobiles are
Generally, a national map or a regional map divided into multiple parts is stored as map information in a map storage means, and the above map information is read out in response to an operator's request and displayed on a display such as a cathode ray tube. , to provide a map for driving.

In addition, by calculating the current position of the vehicle based on detection signals from a distance sensor that detects the distance traveled by the vehicle and a direction sensor that detects the heading direction, the current position of the vehicle is displayed on the map displayed on the display. A triangular mark indicating the position and the driving trajectory are displayed as a plurality of consecutive points, so that the vehicle's position on the map on the screen can be visually confirmed (for example, Japanese Patent Application Laid-Open No. 58-53711, Japanese Patent Publication No. 59-1983). 39
800, JP-A-60-165511)
.

By the way, in this type of device, in order to provide various information to the driver, service symbols such as gas stations, hotels, and golf courses can be displayed on the map by operating a switch. Generally, when a map is displayed on the screen, a symbol pattern for operation input is displayed around the map surface, and by touching this pattern, the various service symbols mentioned above are displayed on the map. It is configured to display a mark.

[Problem to be solved by the invention]

However, in the conventional device described above, when the symbol pattern for operation input is operated, the service symbol mark is displayed in the entire area of the map surface, so this mark is hidden behind the symbol pattern for operation input. There were cases where it was put away. Therefore, the problem remains that it is not possible to select and operate service symbol patterns, and that it is not possible to provide all information to the user.

This invention has been made in view of the above-mentioned problems, and when a symbol pattern for operation input is displayed on the periphery of a screen displaying a map, it is possible to prevent the symbol mark of a target object from being hidden by this pattern. Another object of the present invention is to provide a navigation device for a mobile body equipped with a display capable of displaying detailed information regarding a target.

[Means to solve the problem]

The navigation device for a mobile body according to the present invention includes a map information storage means storing type data and coordinate data that are coded by decomposing a plurality of map elements constituting a map into types and coordinates, and coordinates of a target. and target object data storage means storing coordinate data and information data in which information regarding the target object is encoded, respectively, a display having a screen for displaying a map, and reading type data and coordinate data from the map data storage means. a map drawing means for drawing the map on the display device by the map drawing means; a mesh drawing means for drawing a mesh pattern superimposed on the periphery of the map drawn on the display device by the map drawing means; an operation input symbol drawing means for drawing a symbol pattern for operation input superimposed on a mesh pattern, the mesh pattern and the symbol pattern for operation input being drawn in the map drawn by the map drawing means; target symbol drawing means for reading coordinate data of the target object existing in a region other than the target object data storage means and drawing a symbol pattern of the target object in the region; The apparatus further includes target information display means for reading out information regarding the target drawn by the symbol drawing means from the target data storage means and displaying the information on the display.

[Effect]

In this invention, when a map is displayed on the screen, symbol patterns for operation input are displayed around the map. Then, when this symbol pattern is operated, a mesh pattern is displayed superimposed on the periphery, and a symbol pattern of the target object is drawn in an area other than the mesh pattern.

At this time, when a command signal is issued, information regarding the target is read out and displayed on the screen. Therefore, a symbol pattern for operation input is displayed in the area of the mesh pattern, but a map is displayed in other areas.

Therefore, the user can see areas on this map where the symbol pattern of the target object is not displayed, and the symbol pattern for the operation input described above is not hidden, making it possible to visually confirm all information and detailed information about the target object. can.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings.

Figure 1 is an overall configuration diagram of a mobile and body navigation device.
FIG. 2 is a front view of the display, and FIG. 3 is a schematic configuration diagram for explaining the present invention in detail.

In the figure, (1) is a control section with 110 various circuits (
2), (3), (4) and input/output ports (5), (6
), CPLI (71), CRT-C (91, etc.) operate by receiving stabilized power from the vehicle battery via a constant voltage circuit, and control various devices.

(2) is the first I10 interface circuit, which includes a navigation (11) that guides the driving of the vehicle, a traffic information (12) that receives road conditions, and a wireless telephone (13) for the car.
), air conditioner for indoor air conditioning (14), television (15) as a video and audio source, radio (16), tape (17), CD (18), etc., using function switches (SWI) to (SW8). It is possible to select it via .

These function switches (SWI) to (SW8) are installed on the front panel (26b) of the CRT (26) shown in FIG.
The drive signal is sent to the CPU by pressing the button.
(71) to operate each device.

In addition, the first I10 interface circuit (2) includes:
A GP that receives radio waves from artificial satellites via an antenna and can confirm and determine the current location and moving speed of a vehicle.
The S device (19) and a flux-kent type geomagnetic detector fixed to the vehicle separate and detect the geomagnetic field into a component in the vehicle's traveling direction and a component perpendicular to the component, and a signal corresponding to this component is sent to detect the component in the vehicle's traveling direction. A direction sensor that outputs the direction θ (
20) are connected.

(3) is the second I10 interface circuit, to which is connected a distance sensor (21) that outputs a pulse signal proportional to the number of wheel rotations using a vehicle speed sensor that detects wheel rotation using an electromagnetic pickup, reed switch, etc. has been done. Note that the current position data of the vehicle is obtained by the azimuth sensor (20) and the distance sensor (21), and
This constitutes a current position detecting means that can obtain travel trajectory data.

(4) is the third I10 interface circuit, which is used for video and video equipment such as a TV tuner (22), radio tuner (23), tape deck (24), and CD deck (25).
Audio equipment is connected. This CD deck (25) is equipped with a CD-ROM (25a) which is a map data storage means and a target object data storage means, and when the navigation (11) is selected, various map information and line diagram data as described below are stored. etc. can be read out and displayed on the CRT (26). In addition, the above CD-ROM (25a)
As, NTKKEl, ELECTRONIC3,1
The memory for storing map information described in the November 26, 1998 issue (NO434) is adopted, and map information such as national maps, local maps, regional maps, and even district maps is stored as vector data. Further, in this example, there are three types of maps, wide area, standard, and detailed, each having a different scale, and this map information is stored so as to include a common area. The above district map is divided into four areas corresponding to the four quadrants of the screen (26a) of the CRT (26), and the four map blocks are considered as partial maps, and the l map block that is a part of this partial map is 4 times as many as CRT (26
) The data is sequentially stored in the CD-ROM (25a) as map information so as to form the background of the screen (26a). In addition, line diagrams connecting points on this district map, such as line diagrams showing roads, rivers, bridges, etc., are decomposed into line diagram data and stored, as well as character data such as letters and symbols, as well as target objects. Hotels, golf courses, etc. are stored as symbol patterns as service symbols, and detailed service data corresponding to these patterns are also stored. Specifically, the coordinates of the target and information regarding the target are stored as coordinate data and information data, respectively, which are encoded.
When read out based on the command signal, it is displayed on the screen (26a) of the CRT (26) (see FIG. 13).
For specific items such as roads, rivers, and bridges mentioned above,
A color palette is stored in multiple color codes to display in various colors.

Furthermore, in order to be able to display the above-mentioned items in other colors in addition to this color code, it has a plurality of memory tables in which a large number of color palettes are stored in color codes. Furthermore, dot data for shadowing the screen (26a), a touch pattern that is a symbol for operation input,
In other words, mesh pattern data for applying shadows to areas where icons are displayed is also stored.

In this example, the area where the icon is displayed is the top and bottom of the screen (26a), which is the peripheral area of the map (see Figure 12).
.

(7) is the CPU, and the function switch (
The operation of the video/audio equipment is controlled based on the selection operations of SWI) to (SW8), and the operation of the above-mentioned CD-ROM (25
Read the map information etc. from a) and display it on the CRT (26) screen (
26a) to display the control signal on the CRT-C(
Give to 91.

It also receives a pulse signal from the distance sensor (21), a GPS signal from the GPS device (19), and digital signals of x and Y components from the direction sensor (20) via the IRT (interrupt circuit) (7a). Then, arithmetic processing is performed to determine the travel trajectory and current position, which are travel route information, and a display signal is output.

(8) is a temporary storage RAM which is a time storage means, and as shown in the schematic diagram of FIG. Power is constantly backed up from the on-vehicle battery so that read data can be temporarily stored and retained. When map information is read out, line drawing data is also read out, and when a desired map is selected, data is taken out so that various line drawings are superimposed on the map. In addition,
This RAM (8) contains the above CD-ROM (25a).
The coordinates of the current position stored in the first memory table of (
XO, YO) is stored in the center of the screen (26a), and when this current position data is read out, the screen (26a)
) is displayed as a current position mark (M). Also, the screen (26a) of the above CRT (26)
) is equipped with a memory table for storing position data, and in this example, the above-mentioned CD-RO
It has a plurality of endless memory tables corresponding to map information of maps of different scales stored in M (25a).

(9) is a CRT-C which is a display control means and a drawing means.
(CRT controller) receives a command for outputting a display signal from the CPU (71) and develops the driving route information in the display RAM (10), and also stores the developed map data, character data, and driving route information in the RAM (10) for display. It outputs a video signal and a synchronization signal for displaying route information etc. on the CRT (26).
(7) is the above 4 stored in the CD-ROM (25a).
Among the partial map information, wide area, standard, and detailed map information that are map blocks, map information corresponding to one specified scale and traveling trajectory information comparable to this map information are stored in the memory table of the RAM (8). The driving trajectory is read out from the map and displayed overlaid on a diagram on the map.

(10) is a display RAM that stores additional information such as the map number and scale type, as well as pattern data for displaying the operation keys that drive the various devices mentioned above as touch switches on the screen (26a). has been done. This pattern data includes the current position mark (M) displayed as a triangle on the screen (26a) of the CRT (26) (see Figure 3).
, a trajectory display pattern which is a first mode for displaying the running trajectory as a plurality of consecutive points (dots), and a trajectory non-display pattern which is a second mode for erasing the displayed trajectory from the screen (26a). , is stored as a switching means, that is, a touch switch, which provides a switching signal to the CPU (71).

Although not shown, there is also a scroll key pattern constituting a map moving means for arbitrarily moving the map displayed on the screen (26a), and the current position mark (M) displayed on the screen (26a). A correction position mark that is a correction position mark display means for correcting a position, a return pattern that is a map movement return means that returns a moved map to its original position, and a correction position mark that is used when the current position mark (M) is moved. A correction pattern, etc., which is a current position mark correction means for moving the current position mark to the position of the position mark, is stored. moreover,
Although not shown, enlargement and reduction patterns for specifying the map scale are also stored.

(26) is a CRT which is a display device, and the CRT-
A map of a specific area, the driving route, the current location, etc. are displayed in color using the video signal and synchronization signal from C(9). In addition, various operation keys for the evening, Sochisui, and Sochi portions (described later) are displayed in the designated touch areas, and by pressing the function switch (SW5'), the TV tuner (22) can be turned on and TV images displayed. It is possible.

(27) and (29) are connected to CP[
The light emitting unit connected to J (7), (28) and (30) are light receiving units connected to the CPU (7) via the input board (5), and are arranged on the surface of the CRT (26). It forms the touch panel part of TouchSui Sochi. Although not shown, this touch panel section is divided into many touch areas in the row direction and column direction, and when a specific touch area is touched in the row direction, The infrared light passing through the intersection of the direction and the column direction is cut off, and drive signals giving various instructions are output. Specifically, when you touch the screen (26a), the above operation patterns are displayed on the inner periphery of the screen (26a), and when you touch any of these patterns in the evening or Sochi, you can set the operation of each device to start or stop,
This allows you to set time, numerical values, etc.

Next, the operation of the mobile navigation device configured as described above will be explained with reference to the flowcharts shown in FIGS. 4, 8 to 12.

First, when a key switch is turned on at the start of driving a car, the electric system of each part becomes operational by receiving power from the car's on-board battery. When the CPU (7) of the control unit (1) is powered on, it is activated by the stabilized power supply and the fourth
Initialization is performed in step Sll of the flowchart shown in the figure, and the arithmetic processing shown in the main routine of the figure is repeated at a cycle of about several tens of m5ec. Next, function key processing is performed in step S12, and then,
Touch switch input processing is performed in step SI3. At this time, in step S14, for example, when the operator presses the function switch (SW6-), (SW4) of the radio (16), air conditioner (14), etc., the process advances to step S15, and the screen of the CRT (26) (
In 26a), a radio mode pattern as shown in FIG. 5 or an air conditioner mode pattern as shown in FIG. 6 is displayed. Then, by touching the switch area provided on the display screen for each mode, the selected device can be operated according to the desired settings.

Note that even during such an operation, the process proceeds to step S16, where the CPU (7) executes current position calculation processing and the like.

First, as shown in the flowchart of FIG. 8, when a pulse signal is output from the distance sensor (21), in step S21, an interrupt calculation of the current position is performed at a predetermined time interval. At this time, pattern data is read out based on the above calculation results, and a mark (
M) is displayed on the screen (26a) and updated over time. Then, in step 323, the current position data and traveling trajectory data obtained by this calculation are sequentially stored in the temporary storage RAM (8). As a result, when the vehicle starts traveling, travel route information such as the travel distance to the current location and the travel trajectory can be obtained.

First, when the car is driven, a pulse signal is output from the distance sensor (21) as shown in the flowchart of FIG.
given to. Then, the CPU (7) adds the running distance N to find the distance traveled up to the present time (step 531).

Next, as the automobile travels, an interrupt processing routine shown in the flowchart of FIG. 1θ is started.

First, in step S41, for a certain period of time, for example, 1
Read the number of pulses N from the vehicle speed sensor in layers per second.

Next, in step S42, the number of pulses N at this time,
By multiplying by the unit mileage d, for example 39.25an, the mileage per fixed time is determined.

Then, in step S43, the direction θ from the direction sensor (20) is read.

Subsequently, in step S44, this direction θ and the travel distance θ are determined.
The position of the vehicle on the two-dimensional coordinates is determined from the following equation.

r△x; D@CO5θ ゝ△y=D@sinθ After that, in step S45, the coordinates calculated above (△X,
The current position (x, y) of the vehicle is determined from the coordinates (xo, yo) of the starting point using the following equation.

As a result, the distance traveled to the current position, which changes every moment, is obtained, and the latitude and longitude are determined at regular intervals, making it possible to know the current position (x, y). Note that this data is sent to temporary storage RAM (8) and stored sequentially, but in this RAM (8), the current position (x
, y) is written, while old data is erased one after another, resulting in a so-called endless method. Furthermore, even if the vehicle is stopped and the key switch is turned off, the current position (x, y) and distance traveled data can be retained.

Note that in step 346, the count of the number of pulses N is cleared. Then, proceeding to step S47,
Upon receiving the GPS signal from the above GPS device (19), the
Arithmetic processing for performing S processing is executed. As a result, the absolute values of the latitude and longitude are determined every fixed period of time, for example, every second, so that the traveling route information can be corrected.

By the way, when starting the car, the user operates the navigation system (11) to set the starting point at predetermined geographical coordinates, for example, one's home on a detailed district map.

Now, when the function switch (SWI) of the navigation (11>) is suppressed, a menu is displayed on the screen (26a) of the CRT (2B), as shown in Figure 7, and the map selection and current position are displayed. The setting pattern that is the touch area is displayed.

As a result, the map display mode shown in the flowchart of FIG. 11 is started.

First, step S51 is a map drawing means that reads map information from the CD-ROM (25a) and displays a map on the CRT (26) based on the data (step S55).
2).

At this time, various operation patterns (S), which are operation input symbols, are displayed on the screen (26a).

Next, in step S53, the own army position data is read out, and a mark (M) is displayed at the own army position as shown in FIG. 12(a) (step 554).

Next, in step S55, it is determined whether the service key (Sl) is input, and if there is no key input, the process proceeds to step S5.
Return to 3.

Here, if the service key (Sl) is input, a service menu is displayed on the screen (26a) (step 356).

Then, in step S57, a service item is selected, and a service menu such as a gas station, hotel, circuit, golf course, etc. is displayed on the screen (26a) as shown in FIG. 13(a).

Here, if the user wants to obtain hotel information, by operating the hotel touch pattern 2, the process advances to step 358, and the map before the service menu is displayed is displayed. At this time, the icon on the map screen is deleted (step 559).

After this, in step S60, which is a mesh drawing means,
A "mesh pattern" is displayed in a predetermined range above and below the screen (26a).
Display (P) overlappingly.

Further, step S6 which is a symbol drawing means for operation input
1, various icons are superimposed and displayed in the display area of this "mesh pattern" (P) (this state is shown in Fig. 12(b)).
).

Subsequently, in step S62, the coordinate data of the hotel on the map corresponding to the so-called "shaded" portion is read from the CD-ROM (25a).

Then, step S63 which is a target object symbol drawing means
, a hotel mark H is displayed on the above coordinates (see FIG. 12(b)).

Subsequently, in step S62, the H mark at the left end of the screen (26a) is displayed with the mouth as an identification mark (Ml).

Here, among the keys displayed on the screen (26a), press the "setting" key (S2) or the "scroll key J (S3)."

(S4) It is determined whether or not (Step 565).

At this time, when the scroll key (S3) is touched, the process proceeds to step S66, and the identification mark (Ml) is moved to the adjacent hotel mark H.

After this, the process returns to step S65 again, and the above-mentioned key is determined.

Here, when the "setting" key (S2) is touched,
Proceeding to step S67, the hotel data with the identification mark (Ml) is read from the CD-ROM (25a).

Then, in step 368, which is a target information display means, the hotel data is displayed on the screen (26a) (see FIG. 13(b)).

Thereafter, in step S69, it is determined whether the return key (S5) has been turned on.

Here, when the return key (S5) is turned on, the process returns to step S53, the own vehicle position data is read out, and the above-described process is performed.

In this way, when the operator selects the map display mode, the map is displayed on the screen (26a), and when the service mark is displayed, if the operator touches the service pattern, the screen (26a) A service menu will be displayed. When a hotel is selected from this service menu, detailed information on the desired hotel can be obtained.

As described above, in this embodiment, the operator displays the map on the screen (2
When you perform the selection operation to display on screen (26a),
An operation pattern (S) is displayed around the area. When the service mark (Sl) of this operation pattern (S) is touched, a mesh pattern (P) is displayed in the periphery.

At this time, a mark H indicating a large number of hotels, which is a service symbol mark, is displayed in an area other than the peripheral area. At this time, when an arbitrary hotel is selected, detailed data of that hotel will be displayed on the screen (26a).

Therefore, when the operator wants to obtain service information, the screen (2)
The service mark that is not hidden by the operation pattern (S) in 6a) can be visually recognized, and its location can be properly known. Furthermore, providing service data has the effect of allowing detailed information to be obtained.

[Effects of the Invention] As described above, according to the present invention, when a map is displayed on the screen of the display device, symbol patterns for operation input are displayed around the map. When this symbol pattern is operated, the symbol pattern of the target object is displayed in areas other than the peripheral area of the map screen, but is not displayed in other areas.

Therefore, when the symbol pattern of a target is displayed on the map, it is not displayed in the surrounding area, so when the symbol pattern of the target is displayed like before, the symbol pattern for operation input is hidden by this pattern. This eliminates the problem of not being able to select the symbol pattern of the target, and has the effect of allowing the user to obtain information regarding the target desired by the user.

[Brief explanation of the drawing]

1 to 13 show an embodiment of the present invention,
Fig. 1 is an overall configuration diagram, Fig. 2 is a front view of the display, Figs. A flowchart showing the entire arithmetic processing of the routine, Figures 5 to 7 are explanatory diagrams of various menus displayed on the display screen, Figure 8
FIG. 9 is a flowchart showing calculation processing for displaying the current position of navigation and map display; FIG. 9 is a flowchart showing calculation processing based on the distance pulse from the distance sensor;
Fig. 1O is a flowchart showing the interrupt calculation routine based on the distance pulse from the distance sensor and the signal from the direction sensor; Fig. 11 is a flowchart showing detailed calculation processing of the target object selection routine; - shows an example of the display. In the figure, (1) is the control unit, (7) is the CPU, and (8) is the control unit.
(9) is a time storage means (RAM), and (9) is a drawing means (CRT).
-C), α0 is RAM for display, (11) is navigation, (20) is direction sensor, (21) is distance sensor, (25a) is map storage means and target data storage means (CD-ROM), (26) is a display device (CRT),
(P) is a mesh pattern, and (S) to (S5) are operation input symbols. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims] (1) A map information storage means that stores type data and coordinate data obtained by decomposing a plurality of map elements constituting a map into types and coordinates, respectively, and storing the coordinates of a target and information regarding the target. A target object data storage means that stores encoded coordinate data and information data, a display device having a screen for displaying a map, and a display device that reads type data and coordinate data from the map data storage device and displays the map on the display device. A map drawing means for drawing, a mesh drawing means for drawing a mesh pattern superimposed on the periphery of the map drawn on the display by the map drawing means, and an operation input on the mesh pattern drawn by the mesh drawing means. an operation input symbol drawing means for drawing overlapping symbol patterns for operation input; a target symbol drawing means for reading coordinate data of the target from the target data storage means and drawing a symbol pattern of the target in the area; a target drawn by the target symbol drawing means based on a command; A navigation device for a moving object, comprising a target object information display means for reading out information regarding an object from the target object data storage means and displaying the information on the display.