JPH02310423A - Navigation device to be mounted on vehicle - Google Patents

Abstract

PURPOSE:To allow the easy setting of a destination by inputting the spot information consisting of the place name information and position information of the destination to the device, displaying the map centering at the desired destination on a display screen and setting the destination on the display screen. CONSTITUTION:The information necessary for a control circuit 7 to make various kinds of computation and control processing are temporarily stored in a RAM 11. Various control programs, such as calculation programs for calculating the present position of a vehicle, and the spot information for setting the destination are stored in a ROM 13. The respective outputs of a distance sensor 1, a bearing sensor 3 and a keyboard 5 are inputted to the circuit 7. The kind of the destination is set in the circuit 7 while the screen displaying retrieval files is referenced at the time of setting the destination. The kind of the area of the destination is then selected while the screen displaying the names of each local area together with the map of the whole country is referenced. The kind of the destination is judged and further, the desired urban and rural prefectures are selected. The destination is thus set on the map.

Description

[Detailed Description of the Invention] [Purpose of the Invention (Industrial Application Field) This invention is a method for calculating the current location and destination of a vehicle, which are calculated based on vehicle location information such as the distance traveled and the direction the vehicle is traveling. The present invention relates to an in-vehicle navigation device that can be displayed on a map screen.

(Prior Art) In recent years, so-called in-vehicle navigation devices have been developed that display the current position of the vehicle on a map based on distance information from a mileage sensor and direction information from a travel direction sensor. Various types have been developed.

As a conventional in-vehicle navigation device,
For example, there is one disclosed in Japanese Patent Application Laid-Open No. 196617/1983. This detects the vehicle's travel distance and travel direction and calculates the vehicle's current position from this information.It also stores place names and their geographical coordinates in each region in a storage device, and inputs them to an input device. When the place names of the departure point and destination are specified by The system is configured to display a mark indicating the calculated current position of the vehicle.

(Problem to be Solved by the Invention) By the way, in such conventional in-vehicle navigation devices, when setting a destination, a wide-area map that includes the destination is first retrieved from stored information, and then It is necessary to search for the destination by switching to a detailed map and scrolling the map screen. For this reason, if the operator does not know the general location of the destination, it will take a lot of time to search from a wide-area map to a detailed map that includes the destination. In some cases, there is a possibility that the destination cannot be set.

Therefore, the aim of this invention is to make it possible to easily set a destination without knowing the general location of the destination.
I'm making it a priority.

[Structure of the Invention] (Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention, as shown in FIG. A display means capable of displaying a position, a destination, etc., a point information storage means 17 storing point information consisting of place name information and position information of the destination, and a point of the destination stored in the point information storage means 17. A point information search means 19 for searching information, a display control means 21 for displaying a map around the destination on the display means 9 based on the search by the point information search means 19, and a display control means 21 for displaying the destination on the displayed map around the destination. This configuration includes a point setting means 23 that can be set.

(Operation) The point information search means searches for point information of the destination stored in the point information storage means, and based on this search information, the display control means causes the display means to display a map around the destination. Then, the destination is set on a map around this destination by the point setting means.

(Example) Hereinafter, an example of the present invention will be described based on FIGS. 2 to 4.

FIG. 2 is a block diagram showing an embodiment of the present invention, in which 1 is a distance sensor that generates a signal according to the distance traveled by the vehicle, such as a photoelectric sensor that outputs a pulse signal proportional to the number of rotations of the tires. Mechanical contact type etc. are used. Also,
3 is a direction sensor such as a toroidal core fluxgate type geomagnetic sensor that outputs the running direction of the vehicle; 5 is an input means for creating this device, for example when setting the destination of the vehicle; This is the keyboard you are using. The above distance sensor 1. Each output signal of the direction sensor 3 and the keyboard 5 is input to the control circuit 7. The control circuit 7 has arithmetic processing means such as a microcomputer, and controls the entire apparatus. The control circuit 7 includes one point information retrieval means.

It includes a display control means 21 and a point setting means 23.

Reference numeral 9 displays a wide-area map and a detailed map, and displays the vehicle's current position, which changes from time to time, determined by the control circuit 7.
CR as a display means to display departure point, destination, etc.
It is T. 11 and 13 are RAM and ROM used as information storage means. RAMII is the control circuit 7
Temporarily stores necessary information when the computer executes various calculation processing or control processing. The ROM 13 includes a point information storage means 17, and stores various control programs such as a calculation program for calculating the current position of the vehicle, a processing program for changing the display screen according to the running direction of the vehicle, and a destination information storage unit 17. Stores point information for setting.

In the point information, destination names are appropriately grouped by destination type (for example, station, golf course, hotel, marina, department store, ferry boat boarding area, interchange, etc.) and by prefecture.

Next, the control operation of the control circuit 7 will be explained based on the flowchart of FIG. 3 and the display screen transition diagram of FIG. 4.

When setting a destination, first select the type of destination in the search file (for example, station, golf course, hotel, marina,
Department store, ferry boat pier.

Set while referring to screen A where interchanges etc. are filed (step 301).
). Next, screen B displays the name of the destination (Hokkaido, Tohoku, Kanto, etc.) along with a national map.
Select while referring to.

Then, in steps 305 to 317, the type of destination, ie, whether it is a station or a golf course, is determined. For example, assuming that the destination is a station, the user first selects a desired prefecture while referring to screen C displaying prefecture names (step 319).

When the desired prefecture is selected, the name of each railway company is displayed on the display screen in alphabetical order, and the user scrolls through this screen to select the desired railway company.

For example, if the destination is a station on the Izu-Hakone Railway, the display screen will display 50 station names of each railway company, as shown in screen E.
Changes to those displayed in alphabetical order.

When a target station name is selected on screen E, a detailed map centered on that railway line is displayed via screen F, as shown in screen G. Then, a destination is set on the map by scrolling the screen G (step 323).

[Effects of the Invention] As explained above, according to the present invention, by inputting point information consisting of place name information and location information of a destination, a map centered on the desired destination can be displayed on the display screen. The destination is displayed on the display screen, and the destination can be set easily without knowing the general geography of the destination.

[Brief explanation of drawings]

Fig. 1 is a diagram corresponding to the claims of the present invention, Fig. 2 is a block diagram showing an embodiment of the invention, Fig. 3 is a flowchart showing the control operation of the control circuit, and Fig. 4 is a diagram of the display screen of the invention. It is a transition diagram which shows an example. 9...Display means 17...Point information storage means 19
...Point information search means

Claims (1)

[Claims] A display means capable of displaying the current vehicle position, destination, etc. based on vehicle position information such as travel distance and travel direction, and a point information storage means that stores point information consisting of place name information and position information of the destination. , a point information retrieval means for searching for point information of the destination stored in the point information storage means; a display control means for displaying a map around the destination on the display means based on the search by the point information retrieval means; 1. An in-vehicle navigation device comprising: point setting means capable of setting a destination on a map around the destination.