DE3437025A1 - Combined, computer-controlled road map and route indicator system in motor vehicles - Google Patents

Abstract

In the road-map and route-indicator system, the desired portion of a supply of maps stored in modules is output on a screen with the aid of a computer. By inputting the starting location and the destination and the course of the route, the respective location is indicated via the coupling to the odometer. In this process, only a strictly limited portion of the map of approximately 50 km is projected onto the screen so that the driver can quickly recognise his present location and the further direct course of the route. By virtue of the fact that the system automatically follows the map, an entry to call up the next portion of the map is superfluous. When changing from a motorway to a trunk road etc., or vice versa, a short audible signal is given to remind the driver.

Description

Margret Trilling
Wildeshauser Str. 39
45 Osnabrück

Erk Butzke 3437025 Limberger Str. 40 45 Osnabrück

Combined, computer-controlled road map and route guidance system in motor vehicles, KRSS system

September 26, 1984

The invention relates to a road map and route guidance system in motor vehicles with a screen arranged in the driver's field of vision.

Almost all drivers keep road maps or atlases on their steering wheel or on their knees for orientation. Turning the pages, looking for or turning the cards over leads to inattentiveness in traffic, which can lead to an increased risk of accidents.

Description:

The road maps are stored in such a way that they can be accessed by a computer can be processed. When the device is switched on, an overview map appears on a to the driver or front passenger swiveling screen. The driver or passenger can call up the desired map section and view it on the Look at the screen.

The cards can be selected in the following ways:

a) Input of start and destination, route and scale using the keyboard. If the scale is not entered, it takes place the map display as under b.

b) A map section is displayed on the viewing screen by means of a reading pen marked. The computer divides the entered route into sections of 50 km each and then guides it automatically the map after.

c) By touching a touch screen, the desired map section can be accessed. Map display as under b.

A signal point runs from the entered starting point over the previously

programmed route to the destination. The route is through different colored marking highlighted.

After entering a destination, the map appears in the direction of travel, i.e. the signal point runs from the lower to the upper edge of the image. So there are no problems when driving north / south Turn left or right off the route. The signal point is activated by entering:

a) keyboard,

b) reading pen,

c) Touching the touch screen.

The electronic coupling to a calibrated KM counter allows the light point to show the current location while driving.
If the signal point reaches the upper edge of the screen, the map is automatically tracked, with the signal point running again from the lower to the upper edge of the screen.

The display of the route can be supplemented to the effect that, if the route is entered, before changing from e.g. a motorway on another or federal and country roads a short signal tone reminds you.

Claims (6)

Margret Trilling, Wildeshauser Str. 39, 45 Osnabrück, Erk Butzke, Limberger Str. 40, 45 Osnabrück, September 26, 1984 claims 1. Combined, computer-controlled road map and route library tsystem in motor vehicles with a a) Color screen in the driver's field of vision, b) can be swiveled to the front passenger's field of vision, integrated in the dashboard or can be installed in the center console as well Retrofitting. The device is characterized in that the input of start and destination as well as route (e.g. BAB, B or L roads, etc.) and the scale is done using the keyboard. The map section can be moved in the desired directions with a joystick. A signal point runs from the start to the destination via the entered one Route. The electronic coupling to the KM counter shows the respective location while driving. If the signal point meets the end of the cirque shown on the screen this is automatically tracked. The cards are stored in such a way that they can be processed by the computer can be. The storage elements are exchangeable. 2. Apparatus according to claim 1, characterized in that the playback is also possible on a two-color system or on an LCD display. 3. Apparatus according to claim 1 and 2, characterized in that when Switch on the device a map of the entered memory element ( e.g. Germany map) appears and the desired map section is selected using the reading pen on the viewing screen. 4. Apparatus according to claim 1 and 2, characterized in that when the device is switched on, a map of the input memory element and the desired map section appears on the touch screen is selected by touching it with a finger. 5. Apparatus according to claim 1-4, characterized in that the display of the route by acoustic signals to that effect it is added that when the route is entered, a short signal tone sounds before changing streets of different order and reminded of the change. 6. Apparatus according to claim 1-5, characterized in that it can be used in the rest position as a video game and TV receiver can. A video recorder can be connected.