KR19990058350A - Guidance device for destination of vehicle navigation system - Google Patents

Abstract

The present invention relates to a device for guiding a destination for a vehicle navigation system to provide a name on a crossroads.

Its structure includes a GPS receiver that receives radio waves from the outside and calculates and outputs information on the current location of the vehicle, a map data storage that stores road map data and various data for searching, and user operations. A key input unit for inputting a control command to input a driving route according to the present invention, a controller for matching current position information of the host vehicle output from the GPS receiver on the map data provided from the map data storage unit, and a matching unit by the controller. A vehicle navigation apparatus having a monitor for outputting information as image information and a speaker for outputting audio information, wherein the map data storage unit stores data of the intersections, and the current location information of the own vehicle is the map data storage unit. Intersections on map data provided by Characterized in that for guiding the direction data stored in the storage unit via the at least one of the display or the speaker.

Description

Guidance device for destination of vehicle navigation system

The present invention relates to a destination direction guidance device of a vehicle navigation apparatus, and more particularly, to a destination direction guidance apparatus of a vehicle navigation apparatus to provide a name on the intersection.

The navigation system is a vehicle that develops a high-precision global positioning system used for automatic navigation systems, such as ships and aircrafts. It is a driving facility that guarantees driving. The vehicle navigation system receives data from 24 GPS satellites orbiting around the earth to provide a comfortable driving environment by providing the current location, direction of travel, optimal route to the destination, and various convenient information. have.

A database of a conventional vehicle navigation system includes a guide database and a search database. The guide database is constructed based on a node and a link, and the search data is input. A database is built based on values, definitions, and settings.

In the guide database, the node receives information such as ID, type code, and intersection name, which are unique values of the node, and the link is inputted with information such as a car player, road type, and route number.

That is, the database for the conventional vehicle navigation apparatus inputs the attribute data of the above contents independently to the node and the link to guide the destination, the turning direction, and the remaining distance to the destination by voice synthesis.

However, the conventional vehicle navigation apparatus has the following problems.

That is, the conventional vehicle navigation apparatus inputs only attribute data independently to nodes and links, but does not have a database for guiding the direction of travel on the intersection.

Therefore, in guiding the remaining distance to the destination by voice synthesis, the direction information and distance information which the driver visually checks on the intersection, the direction information guided by the vehicle navigation system, and the remaining distance to the destination do not match. There was a problem such as import.

The present invention has been made to solve the above-described problems, the object of which is to add the guidance information to guide the direction on the intersection in the construction of the destination direction guidance device of the vehicle navigation system, the information by the naked eye of the driver And to provide a guide to the destination of the vehicle navigation system to improve the reliability of the vehicle navigation apparatus by matching the guide information guided by the vehicle navigation apparatus.

1 is a block diagram of a device for guiding a destination of a vehicle navigation apparatus according to the present invention;

2 is a destination direction guidance database of a vehicle navigation system according to the present invention;

3 is a flowchart showing an application example in the vehicle navigation apparatus.

* Description of the symbols for the main parts of the drawings *

1: GPS receiver 2: Controller

4: map data storage 41: direction information database

5: key input unit 6: speech synthesis unit

61: Speaker 7: monitor

The construction of the present invention for achieving the technical problem, receives a radio wave from the outside and stores the various data for the GPS receiver, road map data and search for calculating and outputting information on the current position of the own vehicle A map data storage unit, a key input unit for inputting a control command to input a driving route according to a user's operation, and present position information of the own vehicle output from the GPS receiver on the map data provided from the map data storage unit. A vehicle navigation apparatus having a control unit for matching, a monitor for outputting information matched by the control unit as image information, and a speaker for outputting audio information, wherein the map data storage unit stores data on the intersections and the host vehicle Map of the current location information provided from the map data storage unit When itaconic meching intersections and on to the face data stored in the map data storage unit characterized in that the guiding through at least one of the display or the speaker.

Hereinafter, one preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a control block diagram of a destination direction guidance device of a vehicle navigation apparatus according to the present invention, FIG. 2 is a destination database of a direction information guide of a vehicle navigation apparatus according to the present invention, and FIG. 3 shows an application example of the vehicle navigation apparatus. One flow chart.

As shown in FIG. 1, the configuration of the present invention receives a radio wave transmitted from a GPS (Global Positioning System) satellite and calculates and outputs information on the current position of the host vehicle based on the received radio wave. A GPS receiver (1), a key input unit (5) for inputting a control command to display or search necessary information according to a user's operation, and a destination, a search database for road map data and search, and Map matching is performed on the map data storage unit 4, the map data storage unit 4, and the current position information output from the GPS receiver 1, on the map data provided from the map data storage unit 4. The controller 2 for providing the information, the monitor 7 for providing the image information so that the driver can see the map matched information in the controller 2 and the sound for providing the audio information It consists of the combination unit 6 and the like. Reference numeral 61 is a speaker.

2 is an example of a guide database stored in the road map data storage, which is a guide database for guiding an intersection. As shown in FIG. 2, an intersection is shown, and data to guide the direction of the intersection is shown. First, the intersection represents the intersection between Uijeongbu-Suwon and Seoul-Yangpyeong, and the remaining distance to each direction is indicated. These are the values that the driver can actually see through milestones at intersections while driving.

In the intersection information database for guiding the direction name at the intersection, new direction name information and remaining distance information are further input to the node ID and the intersection name inputted in the conventional node.

That is, assuming that the Uijeongbu direction ① is a start link, if the end link is ②, the name information of the direction is positive and 50km is input on the database.

If the end link is (3), the area name information is the source, and the remaining distance information is 100 km on the database.

If the end link is ④, the area name information is Seoul, and the remaining distance information is input on the database.

In addition, if it is assumed that the Yangpyeong direction ② is the start link, the database is constructed by the above-described process. That is, as many databases as there are cases are constructed.

When such a database is constructed, when a vehicle enters an intersection on the electronic map data when driving by the vehicle navigation system, the user can receive a direction by voice synthesis.

That is, when the route to the destination is set, when the vehicle enters the intersection, it guides the name and distance information of the direction of the set destination direction. Therefore, as the driver enters the intersection due to actual driving, the driver has confidence in the vehicle navigation apparatus because the information checked through the milestone visually matches the information guided by the vehicle navigation apparatus.

Hereinafter, an application example in the vehicle navigation apparatus will be described.

As shown in FIG. 3, the GPS receiver 1 performs a location information calculation step of calculating current location information based on the information of radio waves emitted from the GPS satellites (S1).

When the calculation of the location information is completed in the calculation step S1, the control unit 2 performs a map matching step of map matching the map information loaded from the map data storage unit 4 and the location information calculated in the location information calculation step S1. Perform (S2).

Through the map matching step S2, the position of the own vehicle is represented on the map data, and according to the progress of the own vehicle, an intersection determination step of determining whether there is intersection information in front of a predetermined distance is performed (S3).

If it is determined that the intersection is ahead in the intersection determination step S3, the control unit 2 of the destination direction for searching for information including the destination in the direction guide database 41 in the map data storage unit 4; Performing a direction information search step (S4).

When the search is completed in the direction information retrieval step S4 of the destination direction, the controller 2 performs an intersection entry determination step to determine whether to enter the intersection represented on the map data (S5).

When it is determined that the intersection is entered in the intersection entry determination step S5, the controller 2 performs an orientation information output step of outputting the information retrieved in the orientation information search step S4 of the destination direction (S6). The direction information output step S6 is performed by speech synthesis.

If it is determined in the determination step S3 that there is no intersection ahead of the predetermined distance, the control procedure is returned.

As described in detail above, according to the present invention, in the construction of the navigation device for the destination of the vehicle navigation system, the navigation information is added so that the vehicle can be guided on the intersection. Matching the guide information is effective to improve the reliability of the vehicle navigation system.

Claims (2)

GPS receiver which receives the radio wave from the outside and calculates and outputs the information on the current position of the vehicle, map data storage which stores road map data and various data for searching, and driving route according to the user's operation A key input unit for inputting a control command to input a controller, a controller for matching current position information of the host vehicle output from the GPS receiver, on map data provided from the map data storage unit, and information matched by the controller. A vehicle navigation apparatus having a monitor for outputting image information and a speaker for outputting audio information, The map data storage unit storing data of the intersections; When the current position information of the own vehicle is matched with the intersection on the map data provided from the map data storage unit, the vehicle navigation information characterized in that the direction data stored in the map data storage unit to guide through at least one of the monitor or the speaker. Guide to the device's destination. The method of claim 1, The direction data comprises a name of the direction and distance information to the direction from the intersection and the destination direction guidance device of the vehicle navigation apparatus, characterized in that entered in the node information.