KR20050041457A - Method for guiding road in telematics system - Google Patents

Abstract

The present invention relates to a telematics terminal, and to a real-time voice route guidance method using fixed scenario speech synthesis in a telematics terminal. When the user requests the road guidance, the user searches for and displays the shortest path to the input destination, reads the POI point closest to the current location, and outputs a moving direction as a voice message. If the vehicle approaches the nearest POI within a certain distance, the voice direction from the POI is output as a voice message, and it is also preferable to output the text in a text form. Thus, the present invention, by using the navigation of the telematics device and TTS at the same time to track the current location in real time to guide the voice and text from the starting point to the destination, when the user is driving a car sells at a glance Also, the user can conveniently use the navigation device.

Description

Method for guiding road in telematics system

The present invention relates to a telematics terminal, and more particularly, to a real-time voice route guidance method using fixed scenario speech synthesis in a telematics terminal.

Telematics is a compound word of telecommunications and informatics. It is called 'automotive' in that it uses an auto PC that can send and receive e-mails in the car and retrieve various information through the internet. Also called telematics. Through telematics, the driver can remotely diagnose the vehicle through the wireless network, and can use the auto PC equipped with the wireless modem to access various information such as traffic and living information, emergency rescue, etc. You can send and receive e-mail and download audio books. In addition, these telematics terminals generally include a navigation device that can search for a destination. The navigation device uses an information received from GPS on a map displayed on a monitor to optimally travel to a current location and a destination of a mobile vehicle. Will be displayed.

In the conventional telematics terminal, when the location path is displayed, it is tracked by a GPS (Grobal Position Sysem) to look down the point of interest (POI) from the server. Therefore, the user has to drive while looking at the map of the navigation device when driving the vehicle, there is a safety problem to sell a glance when driving the vehicle. This feature has been proposed to provide a way to tell the direction by voice, so that the user can receive the guidance without having to sell a glance while driving. However, in the conventional telematics device, only the starting point and the end point of the searched location route are TTS (Text-to- It is not enough information to find and drive the way with voice only and it is inconvenient to use the navigation device because it does not read by speech or only the intersection point from the current location, and does not tell the directions of directions to the destination by voice at all. There was this.

Therefore, in order to solve the above problems, an object of the present invention is to track the current location in real time by using the navigation and TTS of the telematics device at the same time to guide the TTS from the starting point to the destination, so that the user sells a glance when the vehicle is driven. It is to prevent accidents, and to allow the user to conveniently use the navigation device.

In order to achieve the above object, the present invention provides a first step of searching for and displaying a shortest path to an input destination when receiving a directions request from a user, and a second step of reading POI information closest to a current location. And a third step of outputting, as a voice message, the direction of travel in the POI when the vehicle approaches the nearest POI within a predetermined distance.

In the third step, if the vehicle approaches the closest POI within a certain distance, an enlarged screen including the closest POI point and the current position is output, and the progress direction in the corresponding POI is output as a voice message. In addition, it is preferable that the progress direction is displayed as an arrow on the enlarged screen and is output as a character instead of a voice message.

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

1 is an internal configuration diagram of a telematics device to which the present invention is applied.

The telematics device of the present invention includes a GPS receiver 120 for receiving information on a vehicle's location through a satellite, a memory 170 for storing a street name, text data, POI information, and a map of the street name, and text for voice. The voice synthesizer 150 converts and outputs a signal, a display unit 160 for outputting a map, and a shortest path to a destination input from a memory when a user receives a directions request request from the user through the key input unit 130. Search for and display the POI information that is closest to the current location from the memory 170, and detect the vehicle approaching the nearest POI within a certain distance through the GPS receiver 120 in the direction of progress in the corresponding POI. The control unit 100 for outputting a voice message through the voice synthesis unit 150.

When the vehicle approaches the nearest POI within a predetermined distance, the controller 100 controls the display unit 160 to output an enlarged screen including the closest POI point and the current location to the display unit 160. Also display as.

2 is a flowchart illustrating a road guidance process in the telematics device of the present invention.

The user first enters the address of the destination to go to and then presses a key (or confirmation key) provided in advance to request a directions (step 210). When a request for directions is made, the controller 100 of the telematics device searches for the shortest path and outputs the shortest path on the screen (step 220). At this time, the shortest path is preferably displayed on the screen by a thick arrow (step 220).

After outputting the shortest path, the POI (Point of Interest) information closest to the current user's location is read (step 230), and when the vehicle approaches the nearest POI within a certain distance, the direction of travel in the POI is transferred to the TTS. The synthesized message is output as a voice message (step 240). In addition, it is preferable to output the content output as a voice message in a text form. When the user approaches the POI within a certain distance, the screen including the closest POI point and the current position is enlarged and output.

3 is a diagram illustrating a screen example when the shortest path is output.

As shown in the figure, the shortest path from the current location to the final destination is searched and found, and important POI information such as (a) and (b) is read therefrom.

That is, in order to read the POI information in the map of FIG. 3, the area corresponding to the range closest to the current location is indicated by a thick dotted line, and the POI information closest to the range and the progress direction in the POI are searched and output.

4A is a diagram illustrating a screen when FIG. 3A is enlarged, and FIG. 4B is a diagram illustrating a screen when FIG. 3B is enlarged.

First, the POI point nearest to the current position is read to guide the user to the voice path. In FIG. 4A, "Yangjae I.C" is the POI point nearest to the current position. Here, the telematics device reads the text information "Yangjae I.C" and synthesizes the voice from the text using a text-to-speech (TTS) in a fixed scenario. The fixed scenario synthesis method is a method in which POI information, which can be changed at all times, is read at each time, synthesized by a TTS, and naturally combined with the remaining fixed scenarios to form a voice message. For example, the POI information, which can be changed according to the situation, is synthesized with the voice "turn right" stored in the telematics device and outputs a voice message such as "turn right in couture IC." will be. It is also a good idea to display the message "Turn right in Yangjae I.C." on the screen in text form.

Similarly in FIG. 4B, when a specific POI point name is not provided to read important information, the information "500m ahead" is read by calculating an approximate distance from the current location to the POI point. Synthesize with the stored voice "Turn left" and output the message "Turn left before 500m" in voice and text format.

As mentioned above, although this invention was demonstrated to the several example, this invention is not limited to a specific Example. Those skilled in the art will appreciate that various modifications and changes can be made without departing from the spirit of the invention.

As described above, according to the present invention, when the user uses the navigation function of the telematics device, the user uses the navigation and the TTS of the telematics device simultaneously to track the current location in real time and guide the user from the starting point to the destination by voice and text. By giving a user's eyes, when the user drives a vehicle, the accident is prevented from happening, and the user can conveniently use the navigation device.

1 is an internal configuration diagram of a telematics device.

2 is a flowchart illustrating a road guidance process.

3 is a diagram illustrating a screen example when the shortest path is output.

4A is an enlarged view of a portion (a) of FIG. 3.

4B is an enlarged view of a portion (b) of FIG. 3.

Claims (7)

A GPS receiver that receives information about the location of the vehicle via satellite, A memory storing a street name, text data, POI information, and a map of the street name; A voice synthesizer for converting text into a voice signal and outputting the text; A display unit for outputting a map, A key input unit for receiving a user's operation command, When the user receives a directions request request from the user through the key input unit, the shortest path to the destination input from the memory is searched and displayed, the POI information closest to the current location is read from the memory, and the vehicle is closest to the GPS receiver. Control unit for outputting the direction of progress in the POI to the voice message through the voice synthesis unit when detecting the approach to the POI within a certain distance Telematics device having a. The method of claim 1, And the control unit outputs an enlarged screen including the closest POI point and the current location to the display unit when the vehicle approaches the nearest POI within a predetermined distance. The method of claim 2, And the control unit also displays the moving direction as an arrow on an enlarged screen. A first step of searching for and displaying the shortest path to the input destination when receiving a directions request request command from the user; Reading the POI information closest to the current location; If the vehicle approaches the nearest POI within a predetermined distance, outputting a moving direction in the corresponding POI as a voice message; Way guidance using voice synthesis in a telematics terminal including a The method of claim 4, wherein the third step Outputting an enlarged screen including the nearest POI point and the current location when the vehicle approaches the nearest POI within a certain distance; A method for guiding the way using voice synthesis in a telematics terminal, characterized in that it comprises the step of outputting the advancing direction in the POI as a voice message. The method of claim 5, The direction of movement using the voice synthesis in the telematics terminal, characterized in that also displayed as an arrow on the enlarged screen. The method of claim 5, The direction of travel using the voice synthesis in the telematics terminal, characterized in that the output as a text output.