JP2006201180A - Display control method, apparatus, and record medium recording program for display control - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display control method which improves convenience of a navigation system by previously grasping a wide range of conditions of a route scheduled to proceed along. <P>SOLUTION: In the display control method for displaying a previously set route including one or a plurality of waypoints; a map in which a position mark of user's own vehicle is displayed correspondingly to the position of the own vehicle; and a target waypoint, the waypoint closest to the position of the own vehicle and to be passed through later, the proceeding direction of the own vehicle after passage through the target waypoint is detected (step S5), and a figure indicating a direction in which the own vehicle should turn at the target waypoint on the basis of the detected proceeding direction of the own vehicle (step S6). The display position of the own vehicle position mark is moved to a position not superposed on the figure in the direction approaching the display position of the displayed figure. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present application relates to a display control method and apparatus used in a navigation apparatus for guiding a route of a host vehicle such as a vehicle to a destination.

  Currently, for example, as a positioning device for various moving objects such as automobiles, airplanes, ships, etc., a position mark indicating the position of the moving object is superimposed on the point on the map including the point where the moving object currently exists There is known a so-called navigation device that displays information and guides a route to a destination based on the displayed information. This navigation device is roughly classified into a self-supporting navigation device and a GPS (Global Positioning System) navigation device.

  The former obtains the moving direction and moving distance of the moving body by an azimuth sensor, a speed sensor, an angular velocity sensor, etc. provided in the moving body, calculates the current position by adding it to the reference point, and based on the calculated current position. The position mark and the corresponding map are displayed on the display screen.

  In the latter case, radio waves from a plurality of GPS satellites launched in outer space are received, and the current position of the moving object is calculated by the three-dimensional survey method or the two-dimensional survey method based on the reception result. Based on the current position, the position mark and the corresponding map are displayed on the display screen.

  Furthermore, recently, navigation devices having both the functions of the above-mentioned self-supporting type and GPS type are becoming common.

  According to the navigation device described above, the user can grasp his / her current position and the map in the vicinity of the current position in association with each other. can do.

  By the way, in the conventional general example especially in the navigation device for vehicles, when the position mark of the own vehicle is displayed superimposed on the map, the position mark and the position mark are arranged so that the position mark becomes the center of the display screen. The corresponding map was displayed.

  However, in the conventional navigation device, since the position mark is displayed so as to be at the center of the display screen, when a route scheduled to proceed in the future is set, a portion scheduled to travel is included. There was a problem that the area on the map might not be displayed sufficiently.

  For example, if you plan to make a left turn at an intersection ahead of a road that is currently in progress and the position mark is always at the center of the display screen, the target location on the route after the left turn at that intersection In some cases, it is not possible to grasp in advance the state of the object, the route, etc. over a wide range including the route scheduled to travel.

  In addition, the same problem occurs when the route scheduled to proceed in the future repeats a complicated turn.

  Therefore, the present application has been made in view of the above-mentioned problems, and the problem is to improve the convenience of the navigation device by grasping the situation of the route to be progressed over a wide range in advance. It is an object of the present invention to provide a display control method and apparatus capable of performing the above and a recording medium recording a display control program.

  In order to solve the above problem, the invention according to claim 1 is a map in which a preset route including a plurality of waypoints and a vehicle position mark corresponding to the vehicle position are displayed. In addition, in the display control method for displaying on the display means the target waypoint that is the waypoint that should pass in the future closest to the vehicle position, a detection step of detecting the traveling direction of the vehicle after passing the target waypoint; Based on the traveling direction of the vehicle detected in the detection step, a display step for displaying a figure indicating a direction in which the vehicle at the target via point should bend, and a display position of the graphic displayed in the display step And a moving step of moving the display position of the vehicle position mark to a position that is close to the figure and is not superimposed on the figure.

  In order to solve the above problems, the invention according to claim 3 is a map in which a preset route including a plurality of waypoints and a vehicle position mark corresponding to the vehicle position are displayed. In addition, in the display control device that displays on the display means the target via point that is the via point that should be passed in the future closest to the own vehicle position, a detecting unit that detects the traveling direction of the vehicle after passing through the target via point; Based on the traveling direction of the vehicle detected by the detecting means, a graphic display means for displaying a graphic indicating the direction in which the vehicle at the target via point should turn, and the display of the graphic displayed by the graphic display means Moving means for moving the display position of the vehicle position mark to a position that approaches the position and is not superimposed on the figure.

Next, an embodiment suitable for the present application will be described with reference to the drawings. In the following embodiment, a case where the present application is applied to an in-vehicle navigation device in an automobile or the like will be described.
(I) Device Configuration First, the configuration and general operation of the navigation device of this embodiment will be described with reference to FIG.

  As shown in FIG. 1, the navigation apparatus S according to the embodiment detects an acceleration in the traveling direction actually applied to the own vehicle at the time of starting or stopping of the own vehicle and at the time of acceleration or deceleration, and outputs acceleration data. 1, for example, an angular velocity sensor 2 that detects an angular velocity at the time of direction change of the host vehicle and outputs angular velocity data and relative bearing data; a mileage sensor 3 that outputs a vehicle speed pulse signal corresponding to the rotation of the tire; A GPS receiver 4 is provided that receives radio waves from GPS satellites and outputs GPS positioning data such as latitude and longitude where the vehicle is present, and outputs absolute direction data of the traveling direction of the vehicle.

Furthermore, the navigation device S outputs acceleration data, relative azimuth data, angular velocity data, vehicle speed pulse signals, GPS positioning data, and absolute data output from the acceleration sensor 1, angular velocity sensor 2, mileage sensor 3 and GPS receiver 4, respectively. Based on the azimuth data, a system controller 5 that controls the entire navigation device S, an input device 11 such as a remote control device for inputting various data, and a DVD-ROM (DVD-ROM) as a recording medium on which map information is recorded. Read Only Memory) and disk DK ₁ and CD-ROM (Compact disk-ROM) DVD -ROM drive 12a and the CD-ROM drive 12b for respectively reproducing under the control of the disk DK ₂ system controller 5, the control of the system controller 5 The display unit 13 for displaying various display data and the system controller An acoustic reproduction unit 18 that reproduces and outputs various audio data under the control of the controller 5, and a VICS reception unit 22 that receives traffic information based on VICS (Vehicle Information and Communication System), which has recently been put into practical use. I have.

  In the above configuration, the system controller 5 calculates the moving distance of the own vehicle by counting the number of pulses in the vehicle speed pulse signal and the interface unit 6 that performs an interface operation with an external sensor such as the GPS receiver 4. A CPU 7 as a detection means for controlling the entire system controller 5, a moving display means, and an enlarged view display means; and a ROM (Read Only Memory) 8 as a recording medium storing a control program for controlling the system controller 5; A RAM (Random Access Memory) 9 that stores various data such as route data preset by the user via the input device 11 in a readable and writable manner. The input device 11, the DVD-ROM drive 12 a, the CD-ROM drive 12 b, the display unit 13, the sound reproduction unit 18, and the VICS receiving unit 22 are connected via the bus line 10. The sensors are connected to each other via an interface 6 and a bus line 10.

  Next, the display unit 13 includes a graphic controller 14 that controls the entire display unit 13 based on control data transmitted from the CPU 7 via the bus line 10, and a VRAM that temporarily records image information that can be displayed immediately. A buffer memory 15 including a memory such as (Video RAM), and a display control unit that controls display of a display 17 as a display unit such as a liquid crystal or a CRT (Cathode Ray Tube) based on image data output from the graphic controller 14 16.

  Furthermore, the sound reproducing unit 18 includes a D / A converter 19 that performs D / A conversion of audio digital data transmitted from the DVD-ROM drive 12a, CD-ROM drive 12b, or RAM 9 via the bus line 10, and D An amplifier 20 that amplifies the audio analog signal output from the / A converter 19 and a speaker 21 that converts the amplified audio analog signal into audio and outputs the audio.

  Next, an outline operation will be described.

When the navigation device S having the above-described configuration is activated, the system controller 5 first stores information for accessing map information, etc. from the DVD-ROM disc DK ₁ or the CD-ROM disc DK ₂ and the vehicle position mark. Display information and the like are read and stored in the RAM 9. Then, the output (vehicle speed pulse signal) of the travel distance sensor 3 is read, and the travel distance is calculated based on the read output.

  Next, the output of the angular velocity sensor 2 is read, and the traveling direction is calculated based on the read output.

Thereafter, based on the travel distance data and the traveling direction data, the current position of the own vehicle is calculated to obtain the current position of the own vehicle. Then, the map information corresponding to the determined current position of the vehicle is read from the DVD-ROM disk DK ₁ or the CD-ROM disk DK ₂ and output to the graphic controller 14, and a map including the current position is displayed on the display 17. .

  At this time, each data calculated from the travel distance sensor 3 and the angular velocity sensor 2 is corrected based on the GPS positioning data output from the GPS receiver 4 at any time. Then, the display position and display direction of the position mark and the map displayed on the display 17 are updated when necessary using the data.

The travel distance data may be obtained from the output signal of the acceleration sensor 1 in addition to the calculation using the output signal of the travel distance sensor 3.
(II) First Embodiment of Display Control Processing Next, a first embodiment of display control processing according to the present application in the navigation device S will be described with reference to FIGS. FIG. 2 is a flowchart showing the operation of the first embodiment of the display control process, and FIG. 3 is a display example on the display 17 in the first embodiment of the display control process.

  In the first embodiment described below, the displayed map is moved and displayed based on the future traveling direction of the host vehicle.

That is, as shown in FIG. 2, in the first embodiment of the display control process, when the navigation process is started, first, the current position of the vehicle is determined based on the data from each sensor such as the acceleration sensor 1. Is detected (step S1), the map information including the current position is read from the DVD-ROM disc DK ₁ or the CD-ROM disc DK ₂ , and the corresponding map is displayed on the display 17 together with a position mark indicating the vehicle position. (Step S2). As a display example on the display 17 after the process of step S2 is completed, for example, the display shown in FIG.

  In the display example shown in FIG. 3A, the vehicle position mark C indicating the current position of the vehicle is displayed on the route PR set in advance, and is the nearest via point that should be passed in the future. The target via point PP is also displayed. Then, as the navigation process proceeds, the vehicle position mark C gradually approaches the target via point PP corresponding to the traveling speed of the vehicle.

  When step S2 ends, it is next determined whether or not to display an enlarged view W including the target route point PP on the display 17 (step S3). As a criterion for the determination in step S3, for example, an enlarged view including the intersection when the intersection on the route PR (including the target route point PP) approaches within a predetermined distance from the vehicle position. W can be displayed.

  If it is determined in step S3 that the enlarged view W is not displayed (step S3; no), the process directly proceeds to step S5. If the enlarged view W is displayed (step S3; yes), the current The displayed map M is moved by a predetermined amount in the direction indicated by the arrow in FIG. 3A, and an enlarged view W is displayed (step S4).

  In the processing in step S4, for example, as shown in FIG. 3B, when the enlarged view W is displayed on the right side of the display screen, the enlarged view W is displayed on the screen including the vehicle position mark C. When it is not (FIG. 3A), it moves by ΔX in the left direction toward the top of the screen. Here, the magnitude of ΔX as the movement amount is, for example, about half of the area where the enlarged view W is not displayed in the horizontal direction in FIG. 3 for the area other than the area where the enlarged view W is displayed on the display screen. It is the size that moves by the distance. A more specific process for displaying the enlarged view W is detailed in, for example, Japanese Patent Application Laid-Open No. 8-304097.

  When the enlarged view W is displayed in step S4, the traveling direction after passing through the target via point PP (lower left direction in FIG. 3) is detected based on the set data of the route PR that has been set. (Step S5).

Then, the map M is further moved in the direction opposite to the traveling direction with reference to the detected traveling direction (step S6). The processing in step S6 will be specifically described with reference to FIG. 3. In the display state shown in FIG. 3B, the detected traveling direction is the lower left on the screen. In this case, FIG. As indicated by the arrow, the map M is moved in the upper right direction. As a result, for example, a display screen as shown in FIG. At this time, the map M moves in the horizontal direction by (X ₂ −X ₁ ) and moves in the vertical direction by (Y ₂ −Y ₁ ).

  In this case, as the amount of movement, for example, the vehicle mark M is not hidden by the enlarged view W and the route PR in the traveling direction is displayed in as wide a range as possible according to each scene. The amount of movement is as much as possible.

  When the movement of the map in step S6 is completed, it is next determined whether or not to end the navigation process (step S7). If not (step S7; no), the process returns to step S1 to repeat the above process. When the process ends (step S7; yes), the process of the first embodiment is ended as it is.

  As described above, according to the display control process of the first embodiment, the traveling direction of the host vehicle after passing through the target via point PP is detected, and thereby the display center point when displaying the map M is advanced. Since the map M is displayed by moving in the direction to display the portion to be displayed on the map M including the route PR set in the direction, there is a wider range for the route PR set in the traveling direction. The state of the route PR that is displayed and scheduled to proceed in the future can be accurately grasped.

Further, when the map M and the enlarged view W are simultaneously displayed on the display 17, the display center point is further moved in a direction to display a portion to be displayed on the map M with respect to the display position of the enlarged view W. Since the map M is displayed, when the map M and the enlarged map W are displayed at the same time, a portion such as the vehicle position mark C to be displayed on the map M is hidden by the enlarged map W and is not displayed. Can be prevented.
(III) Second Embodiment of Display Control Processing Next, a second embodiment of display control processing according to the present application in the navigation device S will be described with reference to FIGS. FIG. 4 is a flowchart showing the operation of the second embodiment of the display control process, and FIG. 5 is a display example on the display 17 in the second embodiment of the display control process. In the flowchart shown in FIG. 4, the same processes as those in the flowchart shown in FIG. 2 are denoted by the same step numbers, and detailed description thereof is omitted.

  In the second embodiment described below, the range of the displayed map is set based on the position of the waypoint on the future travel route of the vehicle.

  That is, as shown in FIG. 4, in the second embodiment of the display control process, when the navigation process is started, first, steps S1 to S4 shown in FIG. 2 are executed. In these processes, for example, a display screen as shown in FIG. 5A is displayed in step S2.

  In the display example shown in FIG. 5A, a route PR is set so as to go to the destination via two via points P in addition to the target via point PP. Then, as the navigation process proceeds, the vehicle position mark C gradually approaches the target via point PP corresponding to the traveling speed of the vehicle.

  Moreover, after finishing the process of step S4, the display screen shown in FIG.5 (b) is obtained, for example. That is, as in the first embodiment, the map M is moved and displayed in the left direction by ΔX.

When the processing of step S4 is completed, next, the coordinates on the display screen of each via point P (target via point PP) on the route PR (for example, the coordinates shown in FIG. The coordinates X ₂ , X ₃ and X ₄ ) with respect to the left end of the screen are detected, and an average value A of the values of the respective coordinates is calculated. That is, in the example shown in FIG. 5B, specifically, A = (X ₂ + X ₃ + X ₄ ) / 3
Thus, the average value A is calculated (step S10).

In step S6, the map M further moves so that the position on the map M indicated by the calculated average value A matches the center of the display screen on the display 17. In the case shown in FIG. 5C, the map M has moved rightward on the screen by the amount of movement corresponding to the calculated average value A. This movement amount is (X ₅ −X ₁ ) in the case shown in FIG.

  In step S6, the map M may be moved so that the position on the map M indicated by the average value A coincides with the center of the area where the enlarged view W is not displayed.

  When the process of step S6 ends, the process of step S7 shown in FIG. 2 is then executed.

  As described above, according to the display control process of the second embodiment, the display center point when displaying the map M is the point indicated by the average value of the coordinate values on the map M of the plurality of waypoints P. Since the map M is set and displayed so as to match, a wider range is displayed for the route PR in consideration of the position of the route point P scheduled to proceed in the future, and the state of the route PR scheduled to proceed in the future is displayed. It is possible to grasp accurately.

  Further, when the map M and the enlarged view W are simultaneously displayed on the display 17, the display center point is further moved in a direction to display a portion to be displayed on the map M with respect to the display position of the enlarged view W. Since the map M is displayed, when the map M and the enlarged map W are displayed at the same time, a portion such as the vehicle position mark C to be displayed on the map M is hidden by the enlarged map W and is not displayed. Can be prevented.

  In each of the above embodiments, the case where the present application is applied to the map M other than the enlarged view W has been described. However, the present invention is not limited to this, and the present application is applied to a map displayed in the enlarged view W. You can also.

  Further, as each via point P, not only an intersection but also a prominent feature on the route PR may be set as a via point.

The program corresponding to the flowchart shown in FIG. 2 or FIG. 4 can be stored in the ROM 8 in advance, or either the DVD-ROM disc DK ₁ or the CD-ROM disc DK ₂ . May be recorded and read as necessary.

It is a general | schematic structure block diagram of the navigation apparatus of embodiment. It is a flowchart which shows the display control process of 1st Embodiment. It is a figure which shows the example of a display in the display control process of 1st Embodiment, (a) is an initial display screen, (b) is a display screen which displayed the enlarged view simultaneously, (c) set the map It is a subsequent display screen. It is a flowchart which shows the display control process of 2nd Embodiment. It is a figure which shows the example of a display in the display control processing of 2nd Embodiment, (a) is an initial display screen, (b) is a display screen which displayed the enlarged view simultaneously, (c) set the map It is a subsequent display screen.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Acceleration sensor 2 Angular velocity sensor 3 Travel distance sensor 4 GPS receiver 5 System controller 6 Interface 7 CPU
8 ROM
9 RAM
DESCRIPTION OF SYMBOLS 10 Bus line 11 Input device 12a CD-ROM drive 12b DVD-ROM drive 13 Display unit 14 Graphic controller 15 Buffer memory 16 Display control part 17 Display 18 Sound reproduction unit 19 D / A converter 20 Amplifier 21 Speaker 22 VICS receiving part DK ₁ CD-ROM disc DK ₂ DVD-ROM disc S Navigation device R Road PR Route PP Target via point P Via point W Enlarged view C Vehicle position mark M Map

Claims (3)

One target or a predetermined route including a plurality of waypoints, a map on which a vehicle position mark corresponding to the vehicle position is displayed, and a target that is the route point that should be passed in the future closest to the vehicle position In the display control method for displaying the waypoint on the display means,
A detection step of detecting the traveling direction of the vehicle after passing through the target via point;
A display step for displaying a figure indicating a direction in which the vehicle at the target waypoint should bend based on the traveling direction of the vehicle detected in the detection step;
A moving step of moving the display position of the vehicle position mark to a position that is close to the display position of the graphic displayed in the display step and is not superimposed on the graphic;
A display control method comprising:   The display control method according to claim 1, wherein the graphic is an enlarged view in which a predetermined range on the map including at least the target via point is enlarged. One target or a predetermined route including a plurality of waypoints, a map on which a vehicle position mark corresponding to the vehicle position is displayed, and a target that is the route point that should be passed in the future closest to the vehicle position In the display control device that displays the waypoint on the display means,
Detecting means for detecting the traveling direction of the vehicle after passing through the target waypoint;
Graphic display means for displaying a graphic indicating the direction in which the vehicle at the target via point should bend based on the traveling direction of the vehicle detected by the detection means;
Moving means for moving the display position of the vehicle position mark to a position that is close to the display position of the graphic displayed by the graphic display means and is not superimposed on the graphic;
A display control apparatus comprising:

Images