KR20030068681A - Method and system for informating objective point desired using voice for gps receiver - Google Patents

Abstract

PURPOSE: A voice guide system for car navigation system and a method for the same are provided to prevent previously a traffic accident by providing various warning data and guide data. CONSTITUTION: A voice guide system for car navigation system includes a GPS reception portion(11), a map data storage portion(13), a key input portion(15), a control portion(17), and a voice synthesis portion(19). The GPS reception portion(11) receives radio waves from the outside and outputs the present position information. The map data storage portion(13) includes a menu setup database(13a), a road map database(13b), a guide database(13c), and a dangerous region database(13d). The key input portion(15) receives various control commands. The control portion(17) searches regions of the road map database on the basis of the present position information and outputting guide data and warning data of the guide database and the dangerous region database. The voice synthesis portion(19) synthesizes the guide data and the warning data and outputs the synthesized voice data to a speaker(21).

Description

Voice guidance system and method of vehicle navigation system {METHOD AND SYSTEM FOR INFORMATING OBJECTIVE POINT DESIRED USING VOICE FOR GPS RECEIVER}

The present invention relates to a voice guidance system and method for a vehicle navigation apparatus. More particularly, the present invention relates to a voice guidance system for receiving a driving position through a GPS satellite during driving of various vehicles, to guide a destination, and to inform a driver of danger information of a driving road. The present invention relates to a voice guidance system and method for a vehicle navigation system.

A state-of-the-art positioning system using GPS (Global Positioning System) satellites receives location signals and time information from several GPS satellites orbiting the Earth at about 20,000 km around the earth and uses them as basic information. It is an advanced system that can calculate the exact location.

Conventional systems using GPS satellites include a navigation system. However, such a navigation system creates a map for navigation with vast location data of many buildings or locations on the surface, stores it in an internet server or a large storage device, and then operates the vehicle in operation. It is a system that uses GPS satellites to drive by checking the necessary information.

In other words, the navigation system is a high-precision global positioning system used for automatic navigation systems such as ships and aircrafts. It is a driving facility that guarantees safe 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, a search database, and the like. 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, in the conventional vehicle navigation system, since only the attribute data is inputted independently to the node and the link, and there is no database for guiding the direction of travel on the intersection, the driver synthesizes the remaining distance to the destination by voice synthesis. Has caused confusion because the information and distance information visually confirmed at the intersection and the direction information guided by the vehicle navigation system and the remaining distance to the destination do not match.

In addition, dangerous areas such as areas of dangerous accidents, fog areas, sudden curves, or tunnels are provided as a cause of traffic accidents, and personal and property damages according to such dangerous areas are increasing day by day. . Although the industry has produced the results of various safe driving systems to prevent traffic accidents according to such dangerous areas, more accurate and safe driving system technology is required, and these demands are increasing.

The present invention was created in order to revive the above situation, and an object of the present invention is to recognize a warning about a driving route and a dangerous area to a destination by a voice, thereby preventing traffic accidents and guiding safely to a destination. An object of the present invention is to provide a voice guidance system and method for a vehicle navigation apparatus.

Such a voice guidance system of the vehicle navigation apparatus according to the present invention,

A GPS receiver which receives a radio wave from the outside and calculates and outputs information on a current position of the host vehicle;

A map data storage unit including a menu setting database, a road map database, a guidance database, and a dangerous area database, and storing various data about the road map data, the guidance data, and the dangerous area data;

A key input unit for inputting a control command to input a destination and a driving route according to a user's operation;

The map data of the area section of the road map database in proximity is searched according to the current position information of the own vehicle output from the GPS receiver, and the destination is among the guide data and the dangerous area data stored in the guide database and the dangerous area database, respectively. A control unit configured to perform calculation and control to retrieve and output warning data to a driver of the vehicle at a warning point set in front of the dangerous area and the guide data for guiding the information; And

And a voice synthesizer for synthesizing the guide data and the warning data output from the controller into voice and output the same through a speaker.

In addition, the voice guidance method of the vehicle navigation apparatus according to the present invention,

It contains the GPS receiver, which receives information about the current location provided by the GPS satellite, the menu setting database, the road map database, the guidance database, and the dangerous area database, and stores various data about the guide data and the dangerous area data. In a vehicle navigation device comprising a map data storage unit for inputting a driving route and a destination, a key input unit for inputting a driving route and a destination, and a control unit for calculating and controlling guide data and warning data for guiding a destination, a method of guiding a driving road and a dangerous area by voice To

a) setting a menu and a destination from the user through the key input unit;

b) retrieving map data of an area section stored in the road map database according to the information on the current location provided from the GPS receiver;

c) retrieving the guidance data and the danger data in the guide data and the dangerous zone database from the guide data existing in the dynamic data of the zone section retrieved by the step b); And

and d) outputting the guide data and the warning data retrieved by step c) by voice.

According to the present invention, the safety operation is possible by providing a service for guiding various warnings and destinations for the safe operation, thereby realizing the prevention of traffic accidents and the safe operation.

1 is a view showing the configuration of the voice guidance system of the vehicle navigation apparatus according to the present invention.

2 is an initial screen of the present balon showing an initial menu.

3 is a screen for selecting a destination menu of FIG. 2.

4 is a screen for selecting an environment setting menu of FIG. 2.

5 is a screen for selecting a surrounding search menu of FIG. 2.

6 is a screen for selecting a user registration information menu.

7 is a flowchart illustrating a voice guidance process according to the present invention.

8 is a screen displaying a guide database according to an embodiment of the present invention.

9 is a screen displaying a dangerous area database according to another embodiment of the present invention.

<Explanation of symbols for main parts of drawing>

11 GPS receiver 13 Map data storage unit

13a: menu setting database 13b: road map database

13c: Guidance Database 13d: Hazardous Area Database

15: key input unit 17: control unit

19: speech synthesizer 21: speaker

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

1 is a block diagram showing a vehicle navigation apparatus according to the present invention. First, referring to FIG. 1, the present invention receives a radio wave from the outside, calculates and outputs information on a current position of a vehicle, a GPS receiver 11, a menu setting database 13a, and a road map database. (13b), a map data storage unit (13) including a guidance database (13c), and a dangerous area database (13d), and a key for inputting a control command to input a destination and a driving route according to a user's operation The region 15 stored in the road map database 13b of the map data storage unit 13 is searched according to the current position information of the host vehicle output from the input unit 15 and the GPS receiver 11, and the map data is searched. Guide data and a dangerous zone for guiding a destination among guide data and dangerous zone data stored in the guide database 13c and the dangerous zone database 13d of the storage unit 13, respectively. The controller 17 performs calculation and control to search for and output warning data to a driver of the vehicle at a warning point set in front, and synthesizes the guide data and warning data output from the controller 17 into voice. And a speech synthesizer 19 for outputting through the code 21.

Here, the key input unit 15 is provided as a keypad for selecting a menu by touching the displayed menu with a finger.

In addition, the menu setting database 13a of the map data storage unit 13 means data necessary for the driver to set a menu. FIG. 2 is a screen for setting menus provided to a driver. In the initial screen, an administrative area is presented in the case of destination selection during destination selection, environment setting, surrounding search, and registration information management. 3 shows a process of selecting an administrative area from the initial screen of FIG. 2 and setting a final destination.

In addition, FIG. 4 illustrates a process of selecting guide classification, voice speed and tone selection, and voice guidance when the environment is set in the initial screen of FIG. 2, and FIG. 5 shows a peripheral search among the initial screens of FIG. If set, tourist attractions located near the destination may be selected, and FIG. 6 may select whether to delete and store the registration information schedule when the registration information management is selected from the initial screen of FIG. 2.

In addition, the road map database 13b stores map data for a section close to the current vehicle location information.

In addition, the guide database 13c of the map data storage unit 13 stores guide data on a driving route among map data provided from the road map database 13b, and the guide data are information on intersections. .

In addition, the dangerous area database 13c of the map data storage unit 13 stores dangerous area data indicating the location information of the current vehicle and the dangerous area of the driving route reaching the destination from the adjacent section. That is, the hazardous area data includes the location of the area and other incidental contents. For example, in the case of tunnel area, there are data on latitude and longitude of the starting point of the tunnel, including various additional data including the end point of the tunnel, the slope of the road entering the tunnel, and the safety level of the tunnel. do.

The dangerous area described in the present embodiment broadly means an area that presents a danger to driving of a vehicle. As will be described later, in the present embodiment, such a dangerous area is an accident accident area, a foggy area, a sharp curve area, and a tunnel area as an example. In addition to this, a safe operation system may be configured by additionally setting a danger area for driving.

7 is a flowchart illustrating a process of guiding a driving route and a dangerous area in the vehicle navigation apparatus. In FIG. 7, the driver first displays an initial menu stored in the menu setting database 13a of the map data storage unit 13 on the screen of the key input unit 15, and sets the final destination through the displayed screen ( Step 301).

When driving starts, a plurality of critical data propagation signals received through the antenna are converted to extract data representing the current position of the host vehicle (step 303).

In other words, the communication using GPS satellites usually uses a high frequency band of Ghz, and a reception antenna having a higher sensitivity than a general receiving circuit is adopted to receive signals of the high frequency band, thereby receiving related information from a large number of GPS satellites. . In order to process a large amount of data received as described above, a GPS receiver 11 for accelerating the processing is required, and such a GPS receiver 11 is based on the rotation and revolution of the earth and various magnetic forces from the received satellite data radio waves. To compensate for the tolerance, various data are extracted.

And, the data on the current position of the vehicle received from the GPS receiver 11 is provided to the controller 17, the controller 17 is stored in the road map database 13b of the map data storage unit 13 The road map data of the region close to the current vehicle location is retrieved from the stored road map data (step 305).

When the search of the road map data is completed by the step 305, the area of the area close to the current vehicle location stored in the guidance database 13c and the dangerous area database 13d of the map data storage unit 13 is completed. The hazard data indicative of the guidance data and the danger zone is retrieved (step 307).

When the guidance and the search for the area in which the dangerous area is located are completed, the controller 17 calculates related information such as a relative distance and a direction for the dangerous area (step 309).

The guidance data and warning data corresponding to the attribute of the dangerous area as the operation result are output from the controller 17, and the voice synthesizer 19 receiving the guidance data and the warning data corresponds to the guidance data and the warning data. Output via warning message and chime (step 311).

Referring to the above process by way of example, Figure 8 is an example of the guide database (13b) stored in the map data storage unit 13, the driving direction of the intersection existing in the area close to the current vehicle is located information Guide database for guiding. As shown in FIG. 2, an intersection is shown, and guidance data for guiding 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 guide database is constructed by the above-described process. That is, the guide database is constructed as many as the number of cases.

When such a database is constructed, when the vehicle enters the intersection on the map data when the vehicle is driven by the navigation system, it is possible to receive a direction guide 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. Accordingly, the driver can visually check through the milestones as the vehicle enters the intersection due to the actual driving.

In addition, the vehicle equipped with the guide system according to the present invention will be described as an example of passing through a tunnel that is dangerous data.

In this guidance system, the distance to the warning point is set, and this distance can be changed automatically or as required by the driver. Here, it is assumed that the distance to the warning point is set to 700m.

As shown in FIG. 9, there is a tunnel in front of the vehicle 70. After the vehicle (70) continues and reaches 700 meters ahead of the tunnel (75), 'Tunnel, tunnel area. Please take off your sunglasses. ' Thereafter, for example, the selected warning chime such as 'beep-beep' lasts for about 3 seconds.

And, in the embodiment of the present invention, the distance to the front warning point of the danger zone may be automatically determined, and may be adjusted and set by the driver in particular. And the distance of this warning point is automatically converted according to the driving speed. For example, in the tunnel area, warning messages and warning chimes will be heard at a point farther than 700m at high speeds, and at shorter distances at low speeds.

Warning messages and warning chimes will be sounded for each danger zone when a designated warning point in front of the danger zone such as fog area, accident area, sudden curve area, etc. is reached in addition to the tunnel, and this warning type is set according to the driver's preference. It is possible to do

If the warning points calculated by considering the speed of the vehicle and the inclination of the road from the starting point of the hazardous area do not coincide with each other, the warning message and the warning difference are only displayed if the match is performed after the calculation is performed again. It will ring.

In addition, the stored data includes information on the location of the road, so that it is possible to check whether the vehicle is running on the road while driving. For example, if the maximum speed limit of a running highway is 100 km / h, a warning message and a warning chime will sound when the vehicle speed reaches 80 km, indicating that it is approaching the maximum speed limit. In addition, if the headlights are not turned on when running in a fog area, a warning message and a warning chime will be sounded.

As described above, the voice guidance system and method of the vehicle navigation apparatus according to the present invention is provided with a service for guiding various warnings and destinations for safe driving, and thus, safe driving is possible, thereby preventing traffic accidents and realizing safe driving. Can be.

While the invention has been shown and described with respect to specific preferred embodiments thereof, the invention is not limited to the embodiments described above, and is commonly used in the art to which the invention pertains without departing from the spirit of the invention as claimed in the claims. Anyone with knowledge will be able to make various variations.

Claims (2)

A GPS receiver which receives a radio wave from the outside and calculates and outputs information on a current position of the host vehicle; A map data storage unit including a menu setting database, a road map database, a guidance database, and a dangerous area database, and storing various data about the road map data, the guidance data, and the dangerous area data; A key input unit for inputting a control command to input a destination and a driving route according to a user's operation; Search for an area section stored in the road map database of the map data storage unit adjacent to the current position information of the own vehicle output from the GPS receiver, and store the guide data stored in the guidance database of the map data storage unit and the dangerous area database, respectively. And a control unit configured to perform calculation and control to retrieve and output warning data to a driver of the vehicle at a warning point set in front of the dangerous area and guide data for guiding a destination among the dangerous area data. And And a voice synthesizer for synthesizing the guide data and the warning data output from the controller into a voice and outputting them through a speaker. It contains the GPS receiver, which receives information about the current location provided by the GPS satellite, the menu setting database, the road map database, the guidance database, and the dangerous area database, and stores various data about the guide data and the dangerous area data. In a vehicle navigation device comprising a map data storage unit for inputting a driving route and a destination, a key input unit for inputting a driving route and a destination, and a control unit for calculating and controlling guide data and warning data for guiding a destination, a method of guiding a driving road and a dangerous area by voice To a) setting a menu and a destination from the user through the key input unit; b) retrieving map data of an area section stored in the road map database according to the information on the current location provided from the GPS receiver; c) retrieving the guidance data and the danger data in the guide data and the dangerous zone database from the guide data existing in the dynamic data of the zone section retrieved by the step b); And and d) outputting the guide data and the warning data retrieved by the step c) by voice.