JP3737545B2 - Navigation device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a navigation device that performs route guidance, and more particularly to a navigation device that makes it easy to understand the direction of travel at an intersection.
[0002]
[Prior art]
Conventionally, a navigation device that displays a road map on a screen, detects the current position and moving direction of an automobile, and displays the position of the vehicle on the road map has been put into practical use. Then, when approaching an intersection, as shown in FIG. 3, route guidance is performed in which the route on which the vehicle is to travel is indicated by an arrow or the like.
[0003]
[Problems to be solved by the invention]
However, since the route display at the intersection, etc., only shows the arrow pointing in the direction of the route on the map, the process proceeds from a point that is difficult to catch the eye, a point in which the direction is not clear, etc. In many cases, it is difficult to quickly determine the course of power, and there is a problem that visibility is not so good.
[0004]
[Means for Solving the Problems]
In order to solve the above problems, the present invention provides a navigation device that displays a road on a display screen, detects the current position and moving direction of a car, and guides the position and course of the vehicle on a road map. When the vehicle position approaches the intersection, a predetermined character is displayed on the display screen in a stationary state near the center of the intersection to be guided on the road map, and the character does not move, but part of the character advances It is characterized by having display control means for performing control so as to guide the course by performing an operation of dynamically indicating the power direction.
[0005]
The character is characterized by having display control means for controlling to guide the route by waving and showing the direction in which the character should move but not move.
[0006]
[Action]
According to the present invention, in the navigation device, the route guidance is performed with dynamic display such as guidance, so the route to be taken can be determined immediately, and the visibility is improved.
[0007]
【Example】
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram showing the configuration of an embodiment of the present invention. Reference numeral 1 denotes a signal radio wave receiving antenna in a global positioning system (GPS) that receives signals (GPS signals) from a plurality of satellites and detects a position. A signal received by the GPS radio wave receiving antenna 1 is a GPS receiver. 2 is input. Then, the GPS receiver 2 calculates the position from the received GPS signal and outputs it.
[0008]
Reference numeral 3 denotes an azimuth sensor composed of a azimuth magnet or the like, and outputs a signal corresponding to the traveling direction of the vehicle. Reference numeral 4 denotes a vehicle speed sensor (travel distance sensor) that outputs a signal indicating the travel speed of the vehicle. The vehicle is connected to and disconnected from a magnet provided on the axle, and a reed switch that outputs a signal according to the rotation of the axle. Composed.
Reference numeral 6 denotes a CD player which is a storage device for supplying map data. The map data written in the ROM is output. Reference numeral 7 denotes a display device that displays a map, route guidance information, and the like, and includes a liquid crystal display device and a CRT.
[0009]
Reference numeral 8 denotes an input device operated by a driver or the like, and includes a keyboard, a joystick mouse, and the like. For example, it is used for specifying the position (current position) of the host vehicle, specifying the target point, and the like.
Reference numeral 5 denotes a microcomputer that inputs signals from the GPS receiver 2, direction sensor 3, vehicle speed sensor 4, input device 8, and memory 9 to calculate the position of the vehicle, determine the state of the vehicle, and display data Processing, program processing for operating the character, etc., and the CD? Necessary map information is input from the ROM player 6, and the display device 7 displays a map, the shape of an intersection, the direction of the course, the position of the vehicle, the display and operation of the character, and the like.
[0010]
Next, the display screen will be described with reference to FIG.
FIG. 2 shows a route guidance display by a guide character C that simulates a route guide. The guide character C itself does not move along the road, but moves in the same direction as an actual guide, that is, in the direction to travel. The operation shown by waving is performed. Therefore, the display according to FIG. 2 is very easy to understand because the guidance display similar to the guidance by the guide is performed.
[0011]
In the above display example, the display at the time of a right turn is taken as an example. Further, data (program) relating to the shape and movement of the character shown in FIG.
Next, processing performed by the microcomputer 5 will be described with reference to the flowchart of FIG. The microcomputer 5 starts the processing operation by operating the navigation device. If it is detected in step S1 that the vehicle is approaching the intersection based on the vehicle position and the map data, the process proceeds to step S2, and if not detected, the process returns to step S1 and the determination is repeated. In step S2, the map displayed on the display device 7 is switched to an image screen displayed in a shape viewed from the direction in which the vehicle at the approaching intersection enters, and the process proceeds to step S3. Note that this display may be performed by superimposing (replacing) the image screen on a part of the map displayed on the display device 7.
[0012]
In step S3, a character as shown in FIG. 2 is displayed on the intersection image screen, and the process proceeds to step S4. In step S4, a process of moving the displayed character by a preset operation method is performed, and the process proceeds to step S5. In step S5, it is detected whether the vehicle has passed the intersection. If the vehicle has not passed through the intersection, the process returns to step S4. If the vehicle has passed through the intersection, the process proceeds to step S6.
[0013]
In step S6, the image display and the character display of the intersection are stopped, the original map is displayed on the display device 7, and the process returns to step S1.
[0014]
【The invention's effect】
As described above in detail, in the navigation device according to the present invention, the route guidance is performed with a dynamic display that guides the user, so that the route to be taken can be immediately determined, and the visibility is improved.
[Brief description of the drawings]
FIG. 1 is a configuration diagram showing an embodiment of the present invention. FIG. 2 is a diagram showing a display example by a character. FIG. 3 is a diagram showing a display example by a character. ] Flow chart showing processing performed by microcomputer 5 [Explanation of symbols]
1 .... GPS radio wave receiving antenna 2 .... GPS receiver 3 .... Direction sensor 4 .... Vehicle speed sensor 5 ... ..Microcomputer

Claims (2)

  In a navigation device that displays the road on the display screen, detects the current position and moving direction of the vehicle, and guides the position and route of the vehicle on the road map, the display screen when the vehicle position approaches the intersection A predetermined character is displayed in a stationary state near the center of the intersection to be guided on the road map, and the character does not move, but performs an action of dynamically indicating a direction in which a part of the character should travel A navigation device comprising display control means for controlling to guide the route by means of the above.   2. The navigation apparatus according to claim 1, further comprising display control means for controlling the character so as to guide the route by waving his hand in the direction in which the character should move but not moving.

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