JP3209659B2 - Vehicle navigation system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicular navigation apparatus capable of displaying optimal route guidance on a display by a route guidance function during traveling of a vehicle.

[0002]

2. Description of the Related Art Conventionally, this type of vehicle navigation apparatus has a map screen on which a route guidance route is displayed, and positions on the map screen such as place names, road names, various facility names, and other various names and information. Various map screen information indicating
It is simply called various information. ) And the own vehicle mark indicating the own vehicle position existing in the map screen are displayed on the screen on the display. In recent displays, various screens can be expressed in different colors due to the development of CRTs, liquid crystal displays, thin film transistors TFT, and the like.

[0003]

However, driving while looking at the display screen generally imposes a new burden on the driver in addition to the attention required for normal driving, and the driver's safety is increased. Driving problems arise. For example,
In conventional devices, small-sized graphics are used to increase the amount of information that can be displayed.Therefore, it is necessary to read which part of the route guidance route the vehicle is traveling on the screen. Time is spent, during which time the attention to drive is diminished. In particular, it was impossible to read those displays instantaneously during high-speed running.

An object of the present invention is to solve such a conventional problem, and an object of the present invention is to provide a vehicular navigation apparatus which can easily read the relationship between the route guide path and the position of the vehicle even during high-speed driving. And

[0005]

In order to achieve the above object, the present invention provides a route guide screen displayed on a display screen, wherein a place name located along both sides of a route guide route on which a vehicle travels is provided. the expanded than place names in other locations, and is intended to be displayed in a color different from that of the place names in other positions, also to the display color to be different before and after the vehicle position Things.

[0006]

Therefore, according to the present invention, the place names located along both sides of the route guide path on which the vehicle travels are enlarged more than the place names at other positions, and have different colors from the place names at other positions. In addition, since the display color is displayed differently before and after the position of the own vehicle, it is possible to instantly read which hit of the route guidance route displayed on the screen, It is possible to drive safely even at high speeds.

[0007]

FIG. 1 shows a schematic configuration of a vehicle navigation apparatus according to an embodiment of the present invention. In FIG. 1, 1 is a storage means for storing map data and various information data, 2 is a route setting means for the driver to input and set a current position and a destination of the own vehicle, and 3 is a current position of the running own vehicle. This is a position detecting means for detecting. The position detecting means 3 is a GPS
(Global Positioning System), those using beacons, those using self-contained navigation, or those that combine them are available. Numeral 4 is control means for searching for an optimum route from the vehicle position and the destination set by the route setting means 2 and reading necessary map data from the storage means 1 and processing the map data so that the map data can be displayed. And display control means 4b. Reference numeral 5 denotes a display means such as a CRT or a liquid crystal display device.

Next, the operation of the above embodiment will be described.
When the driver inputs the current position and the destination of the vehicle to the route setting means 2 before traveling, the route setting means 2 outputs a command signal for calculating an optimum route to the calculation processing means 4a. When determining the optimum route to the destination, the arithmetic processing means 4a reads necessary map data from the storage means 1 and passes it to the display control means 4b. The display control means 4b enlarges the map information around the current location of the vehicle, the indication of the route guidance route on the map information, and the various types of information on both sides of the route guidance route more than the various types of information at other positions. In addition, the information is displayed in a color different from the various information at other positions, and the display color is changed before and after the own vehicle position to be displayed on the screen of the display unit 5. Since the current position of the vehicle changes momentarily during traveling, the information is transmitted from the position detecting means 3 to the arithmetic processing means 4.
a, the arithmetic processing means 4a reads necessary data from the storage means 1 each time and passes it to the display control means 4b.
Similar processing is performed.

FIG. 2 is an example of a screen on the display means 5 displayed in this manner. In FIG. 2, reference numeral 11 denotes a route guidance route, and reference numeral 12 denotes a vehicle mark indicating the current position of the vehicle. For example, if the background color of the screen is light green, the route guidance route 11 is displayed in dark brown, and the own vehicle mark 12
Is displayed in red. Then, various information in contact with both sides of the route guide path 11, here "Shimbashi 1 to Shimbashi 6",
"Nishi-Shimbashi 1-Nishi-Shimbashi 3", "Uchisaimachi", "Hibiya Park"
Are displayed larger than the place names at other positions, and their colors are different from the colors of the other place names. Also,
For example, if the color in front of the vehicle mark 12 is blue, the color behind the vehicle mark 12 is displayed in black, and other place names are displayed in gray. For this reason, it is possible to see at a glance where the vehicle is located on the display screen, and it is possible to immediately read where the vehicle will pass and where it will go next.

In the above-described embodiment, various kinds of information in contact with both sides of the route guidance route are always enlarged and displayed in different colors. However, as shown in FIG. The conventional display method in which the various information items are displayed in the same size and in the same color can be selected by the setting input from the route setting means 2. The control means 4 switches the display method based on the signal from the route setting means 2.

[0011]

According to the present invention, as is apparent from the above embodiment, the place names located along both sides of the route guide path on which the vehicle travels are expanded more than the place names located at other positions, The location name can be displayed in a different color from the location name ,
Furthermore, since the display color can be displayed differently before and after the position of the vehicle, it is possible to instantly read which of the route guidance routes displayed on the screen the vehicle is traveling on, and high speed You can drive safely while driving.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a schematic configuration of a vehicle navigation device according to an embodiment of the present invention.

FIG. 2 is a display screen diagram showing an example of a display screen in the device.

FIG. 3 is a display screen diagram showing another example of a display screen in the device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Storage means 2 Route setting means 3 Position detection means 4 Control means 4a Operation processing means 4b Display control means 5 Display means 11 Route guidance path 12 Own vehicle mark

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yoshikazu Magaga 3-1-1 Tsunashimahigashi, Kohoku-ku, Yokohama-shi, Kanagawa Prefecture Inside Matsushita Communication Industrial Co., Ltd. (72) Inventor Yoshiharu Uno Kohoku, Yokohama-shi, Kanagawa Matsushita Communication Industrial Co., Ltd. (72) Inside Matsushita Communication Industrial Co., Ltd. (72) Inventor Fumio Kosuge 4-3-1 Tsunashima Higashi, Kohoku-ku, Yokohama-shi, Kanagawa Prefecture Tomoaki Bebe Matsushita Communication Industrial Co., Ltd., 3-1, Tsunashimahigashi 4-chome, Kohoku-ku, Yokohama, Kanagawa Prefecture (56) References JP-A-6-273184 (JP, A) JP-A-6-331371 (JP, A) JP-A-4-120584 (JP, A) JP-A-8-5393 (JP, A) JP-A-2-61690 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G01C 21/00 G08G 1/0969 G09B 29/10

Claims (2)

(57) [Claims] 1. In a route guide screen displayed on a display screen, a place name located along both sides of a route guide path on which a vehicle travels is enlarged more than a place name located at another position, and another A navigation device for a vehicle, comprising a control unit for displaying a place name in a different color from a place name . 2. The vehicle navigation device according to claim 1, wherein display colors of the place names located along both sides of the route guide path are different before and after the own vehicle position.