JPS62154098A - Vehicle navigator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention displays the current position of a vehicle on the screen of a display device,
The present invention relates to a vehicle navigation device that guides a vehicle to a destination.

[Summary of the invention]

The present invention provides a vehicle navigation device that displays the current location of a vehicle together with map information on the screen of a display device to guide the vehicle to a predetermined destination. Additional information regarding road traffic regulations associated with the road is stored in a storage medium, and map information is displayed on the display device when the vehicle is within the standard value regarding traffic regulations at the current location, and when the vehicle is within the standard value range. When the range is exceeded, a display is displayed on the display device so that the passenger can recognize that the standard value range has been exceeded,
This allows the vehicle to be safely guided to the destination.

[Conventional technology]

Recently, there has been active research and development into vehicle navigation devices that guide the vehicle to its destination by displaying the current location of a vehicle such as a car on the screen of a display device superimposed on map information stored in advance in a storage means. Some of them have been commercialized.

In such a vehicle navigation device, the current location or map information is displayed moving as the vehicle travels.
The driver (passenger) can reach the destination while confirming the current position by looking at the screen of the display device.

[Problem that the invention seeks to solve]

In this way, conventional vehicle navigation devices only display the current location combined with map information to guide the driver to the destination, so the driver has to check the speed limits, parking restrictions, and entry restrictions for each road they are passing through. It was inconvenient as it was necessary to confirm traffic regulations such as road signs, etc. Moreover, especially when passing through an unfamiliar area, the chances of looking at the screen of the display device naturally increase, and there is a risk of overlooking road signs, which poses a problem in ensuring driving safety.

[Means for solving problems]

FIG. 1 is a block diagram of a vehicle navigation system according to the present invention. In the figure, reference numeral 1 indicates a large-capacity storage means such as a CD-ROM, video disk, VTR, etc., which can store a large amount of data even if it is difficult to read the data quickly. Map information and accompanying additional information such as traffic regulations are stored in a predetermined storage medium.

Reference numeral 2 denotes a central control device consisting of a microcomputer, etc., which controls each circuit, means, device, etc. Reference numeral 3 denotes a storage means including a RAM for storing programs for controlling the operation of the central control unit and other necessary information in a state where they can be read out quickly. Reference numeral 4 denotes an input means such as a keyboard, which is operated when inputting various commands and commands to the central control device 2. Reference numeral 5 denotes a running state detection device which detects the running state of the vehicle by detecting the running speed, distance, direction, position of the speed switching operation lever, etc. of the vehicle using various sensors. 6 is, for example, GPS (Global Po
This is a position detection device consisting of a locating system, etc., and detects the current position (address) of a vehicle from longitude, latitude, and other information. A display control device 7 includes, for example, a character generator, and is designed to control the display on a display device 8 such as a CRT or LCD installed at a position easily visible to the driver.

[Effect]

The effect will now be explained. Navigation by this device is executed by the central controller 3 according to a flowchart as shown in FIG. 2, for example. That is, when the vehicle is traveling toward a predetermined destination specified and input by the input means 4.

The position detection device [6 detects the current position (absolute position) from information such as longitude and latitude in GPS. Alternatively, the current position (relative position) is detected from information such as the departure point and destination specified and input by the input means 4 and data such as the vehicle's traveling speed, distance, direction, etc. detected by the traveling state detection device 5. You can also do this. The central control unit [2 searches the storage means 1 for map information including the current position output by the position detection device 6, reads it out, and temporarily stores it in the storage means 3. Also, at this time, the central control device 2 searches the storage means 1 for additional information on the area including the current location, reads it out, and similarly stores it in the storage means 3. The central control device 2 further reads the map information stored in the storage means 3, outputs it to the display control device 7, and causes the display device 8 to display it. At this time, the current position from the position detection device 6 is also displayed superimposed on the map information.

Therefore, an image as shown in FIG. 3, for example, is displayed on the screen of the display device 8. In this example, a mark P indicating the current position and roads A to M near the mark P are displayed. Either the map information or the current position mark P is displayed moving as the vehicle travels.

Next, the central control device 2 reads, for example, the traveling speed V of the vehicle from the traveling state detection device 5, and from the additional information stored in the storage means 3, the central control device 2 reads the maximum traveling speed of the road on which the vehicle is currently located (or a speed close to it). A predetermined value) is read out as the reference speed v1. Then, the traveling speed V and the reference speed V□ are compared. The current traveling speed V is the reference speed v1
In the following cases, the map information as shown in FIG. 3 described above remains displayed on the display device 8.

When the current traveling speed ■ exceeds the reference speed V□.

The central control device 2 reads additional information (in this case, speed limit information) near the current position from the storage means 3 (or the storage means 1), and displays it on the display device 8 via the display control device 7. As a result, for example, an image (speed map) as shown in FIG. 4 is displayed on the screen. In this example, a mark P representing the current position, roads A to construction in the vicinity, and numbers such as 30.40 representing the speed limit on each road are displayed. The additional information may be stored in advance in the storage means 1 as a speed map as shown in FIG. 4, separately from the map information as shown in FIG. 3, but the additional information may only include numbers indicating speed limits. It is also possible to store this information and display it by combining it with map information as shown in FIG. The mark P representing your current location and the number representing the speed limit of the road you are currently passing (hatched in the diagram) are different in color, brightness, and thickness from other displays so that they can be easily recognized from other displays. It can be made into the same size. Further, the map information may be displayed in a different color, brightness, thickness, etc. from the map information shown in FIG.

In addition, as an indication when the standard value range is exceeded,
For example, numbers indicating the speed limit or the like may be displayed in advance as map information, and the number or the like indicating the speed limit of the road the vehicle is currently passing through may be made to blink. Alternatively, map information such as that shown in FIG. 3 may be kept displayed on the display device 8, and a predetermined alarm may be sounded. This warning may be displayed using a known warning device that sounds when the vehicle speed exceeds 1100 km/h, for example. In short, it is sufficient to provide a display that allows the driver to easily recognize that the vehicle is in a state in which it is in violation of traffic regulations (in a state in which it is likely to be violated).

It would be more convenient if the input means 4 could be manually operated to switch between additional information including the current location and map information as needed.

In the above, the present invention has been explained by taking as an example the traffic regulation related to the traveling speed of vehicles, but the present invention also applies to the prohibition of stopping and parking, etc.
It can also be applied to additional information regarding traffic regulations such as no overtaking, no entering, and no turning left or right.

〔effect〕

As described above, the present invention provides a vehicle navigation device that displays the current location of a vehicle together with map information on the screen of a display device to guide the vehicle to a predetermined destination. , additional information regarding road traffic regulations accompanying map information is stored in a storage medium, and the map information is displayed on a display device when the vehicle is within a reference value regarding traffic regulations at the current location.

When the vehicle exceeds the standard value range, the display device displays a message that allows the passenger to recognize that the vehicle has exceeded the standard value range, which not only makes it possible to guide the vehicle to the destination. , can ensure driving safety.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a vehicle navigation system according to the sixth invention, FIG. 2 is a flowchart thereof, FIG. 3 is a schematic explanatory diagram of its map information, and FIG. 4 is a schematic diagram of its additional information. 1.3...Storage means 2...Central control unit
. 4... Input means 5... Traveling state detection device 6...
・Position detection device 7...Display control device 8...Display device or higher

Claims (1)

[Scope of Claims] A vehicle navigation device that displays the current location of a vehicle together with map information on the screen of a display device to guide the vehicle to a predetermined destination, comprising: The map information and additional information related to the traffic regulation of the road accompanying the map information are stored in a storage medium, and the map information is stored when the vehicle is within the range of the reference value related to the traffic regulation at the current location. A vehicle characterized in that the display device displays a display that allows a passenger to recognize that the vehicle exceeds the reference value range when the vehicle exceeds the reference value range. Navigation device.