JP4446421B2 - Navigation device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a navigation device, and more particularly to a navigation device suitable for use when traveling while searching for a desired point.
[0002]
[Prior art]
In recent years, navigation devices have been equipped with various functions due to advances in technology. For example, in a current navigation device, for example, when a vehicle approaches the vicinity of an intersection at the time of route guidance, when the vehicle turns right and left at the intersection, a schematic diagram of the intersection is displayed (hereinafter, this schematic diagram is referred to as an enlarged intersection diagram). In this enlarged view of the intersection, a function for urging the user to make a mistake in the intersection where the user turns right / left is displayed by displaying an arrow in the direction of turning left / right. This enlarged view of the intersection is not limited to the intersection. For example, when the user is driving, such as when entering an exit / exit lane at an expressway interchange or when arriving near a junction, By notifying the point, the user can check at a glance.
[0003]
[Problems to be solved by the invention]
By the way, as described above, the conventional navigation apparatus displays an enlarged view of an intersection such as an intersection that turns right and left when a route is guided. It is limited only to points that are predetermined as points on the navigation device side. For this reason, for example, a point where the user wants to zoom in on the vicinity thereof, such as an intersection that goes straight ahead, an intersection that intersects a main national road, a point with a landmark (for example, near a convenience store), etc. Even if the display is desired, there is no such means, and there is a disadvantage that it is necessary to confirm visually or on the map display displayed on the display screen of the navigation device.
[0004]
The present invention has been made to solve this problem, and an object of the present invention is to provide a navigation device capable of easily confirming a point or the like as a mark during traveling.
[0005]
[Means for Solving the Problems]
In order to solve the above problems, a navigation device of the present invention includes a storage medium storing map data, a position information detection unit for detecting the current position of the vehicle, a display unit for performing map display, and the vicinity of the vehicle position. A condition setting holding unit that holds the setting of the condition for performing the enlarged display of the vehicle, calculates the optimum route from the current location to the destination desired by the user, guides the route, and near the point where the vehicle meets the predetermined condition When approaching, it is configured to include a control unit that enlarges and displays the vicinity of the point on the display unit, and an operation unit for performing an input operation for setting a predetermined condition. By doing in this way, in addition to the intersection enlarged view, it becomes possible to perform an enlarged display at a point desired by the user, and thus a navigation device capable of automatically searching for a desired point or the like while traveling is provided. Can do.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
(A) Configuration of the Present Invention The configuration of the navigation device of the present invention will be described with reference to FIG. In the figure, 1 is a display unit for displaying a map, a guide route, etc., 2 is a storage medium 3 (for example, a DVD-ROM or the like) that stores map data composed of road layers, background layers, characters / symbols, etc. A data reading device 4 for reading predetermined data from a CD-ROM), 4 comprises a GPS receiver for detecting the current position, traveling direction, vehicle speed, etc. of the vehicle by satellite navigation and a gyro for detecting the rotation angle of the vehicle. And an information acquisition unit for acquiring the position of the vehicle, the current date and time, and the like.
[0007]
Reference numeral 5 denotes a vehicle speed pulse detector for detecting a vehicle speed pulse generated by the movement of the host vehicle, and reference numeral 6 denotes a vehicle's current position, direction, speed, and the like based on information obtained from the information acquisition unit 4 and the vehicle speed pulse detector 5. Based on the map data that is detected accurately and stored in the storage medium 3, the route with the lowest cost from the departure point to the destination specified by the user is searched for as a guide route, which is stored in the storage medium 3. The map data near the current position of the vehicle is displayed on the display unit 1 using the map data being displayed, the vehicle position mark and the guidance route are displayed in accordance with the map image, and various guidance is provided according to the movement of the vehicle. A control unit that provides information to the user. 7 is an input device for performing predetermined input operations such as destination address input and telephone number input, and 8 is a ROM storing an operation program for the control unit 6 to perform a navigation operation. And the control part 6 performs an enlarged display, when the vehicle approaches the vicinity of the points (for example, intersection etc.) which meet predetermined conditions.
[0008]
Reference numeral 9 denotes a condition setting holding unit that stores conditions that determine points where the control unit 6 performs enlarged display. The condition stored in the condition setting holding unit 9 is that a point where an enlarged display is desired (for example, an intersection including a main national road, a point where a convenience store exists, etc., hereinafter, an enlarged display condition) is selected by the user. To be recorded.
[0009]
The enlarged display condition is set by the user operating the input device 7. When the user operates an operation button (not shown) provided on the input device, the control unit 6 displays a condition setting screen as shown in FIGS. When the user selects an item displayed on the condition setting screen using the input device 7, the control unit 6 stores the selected item in the condition setting holding unit 9 as an enlarged display condition. And the control part 6 performs the enlarged display of the said point, when a vehicle approaches the point which agree | coincides with this enlarged display condition.
[0010]
(B) Processing during route guidance The operation of the navigation device of the present invention will be described with reference to the flowchart shown in FIG. First, when the user completes the input of the destination by operating the input device 7 (step 101), the control unit 6 searches for a guidance route to the input destination (step 102). Next, the control unit 6 reads out the enlarged display condition stored in the condition setting holding unit 9 (step 103), and searches for a point that matches the enlarged display condition on the guidance route searched in step 102 (step 103). 104) The point that matches the condition is stored in the condition setting holding unit 9.
[0011]
Then, when the vehicle moves and the vehicle position approaches the vicinity of the point that matches the enlarged display condition stored in the condition setting holding unit 9 in step 104, the control unit 6 changes to FIG. As shown, the point is enlarged.
[0012]
As described above, in addition to the intersection enlarged view, it becomes possible to perform an enlarged display at a point desired by the user, so that a navigation device capable of automatically searching for a desired point or the like while traveling is provided. be able to.
[0013]
(C) Processing at the time of non-route guidance In the above-described embodiment, the case where the navigation device performs route guidance is given as an example. However, not only at the time of route guidance but also at the time of non-route guidance as described above. An enlarged display of a desired point may be performed. In this case, the control unit 6 of the navigation device constantly searches for a point that matches the enlarged display condition stored in the condition setting holding unit 9 and is within a predetermined distance from the vehicle position, and When the vehicle position is in the vicinity of the point, the same effect as in the above embodiment can be obtained even when non-route guidance is performed by performing an enlarged display of the point.
[0014]
【The invention's effect】
As described above, the navigation device of the present invention displays the vicinity of the point on the display unit when the vehicle approaches the vicinity of the point that meets the predetermined condition, so that the user desires in addition to the enlarged view of the intersection. Since the enlarged display at the point can be performed, it is possible to provide a navigation device that can automatically search for a desired point or the like while traveling.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of a navigation device of the present invention.
FIG. 2 is a display example of enlarged display condition setting items and enlarged display.
FIG. 3 is an operation flow of the navigation device of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Display part 2 Data reading device 3 Storage medium 4 Information acquisition part 5 Vehicle speed pulse detection part 6 Control part 7 Input device 8 ROM

Claims (1)

A storage medium storing map data;
A position information detector for detecting the current position of the vehicle,
A display for displaying a map,
A condition setting holding unit for holding a setting of a condition of a point for performing an enlarged display near the vehicle position;
A route guidance unit that performs route guidance by calculating an optimum route from the current position to a destination desired by the user;
When the route guidance unit calculates the optimum route, obtains a point that matches the condition from the route, detects that the vicinity of the point is approached based on the current position and the obtained point, A control unit that enlarges and displays the vicinity of the point on the display unit;
An operation unit for the user to set the condition from a condition setting screen displayed on the display unit ;
The condition is a crossing which crosses a road for a particular road type,
A navigation device characterized by that.

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