KR20020094298A - System and Method for Guiding Position Information Using Wireless Communication Terminal Having GPS Receiver - Google Patents

Abstract

PURPOSE: A position information guiding system and a method thereof using a wireless communication terminal installed with a GPS(Global Positioning System) receiver are provided which can be used and carried easily. CONSTITUTION: A coordinate processor part(34) tracks a start position when a moving body is accessed to the position information guiding system and a present position according to the real time position change of the moving body and a destination position requested by the moving body. A moving path track part(36) calculates an optimum path to the destination according to the coordinate information tracked in the coordinate processor part. An image processor part(38) outputs the moving path calculated from the moving path track part as image map data. A sound converter part(40)the optimum moving path of the moving body into a sound signal on the basis of the image map data being output from the image processor part.

Description

System and Method for Guiding Position Information Using Wireless Communication Terminal Having GPS Receiver}

The present invention relates to a location information guide system, and more particularly, location information provided through a wireless communication terminal by converting location information of a desired destination into a voice signal using a wireless terminal having a GPS satellite and a GPS reception function. A guide system and method.

Recently, an autonomous navigation system for vehicles that uses a universal positioning system (GPS) satellite to identify the position of a moving object and matches it on a road map and displays it has been actively proposed.

GPS is a satellite navigation aid system that was originally developed for military purposes. There are two types of positioning services provided by GPS: standard positioning services and precision positioning services. Among them, standard positioning services using relatively inaccurate Coarse Acquisition (C / A) codes are used for civilian purposes. Open to use, anyone with a C / A code receiver can easily find their location and time anywhere on Earth. Accordingly, navigation systems using GPS have been widely used in recent years, and positioning technology using GPS satellites has been used in various fields such as high precision time synchronization, geodetic, navigation of ships, navigation devices of mobile vehicles such as automobiles and aircrafts.

There are 24 GPS satellites, with an altitude of about 20,000 km and a 12-hour cycle, which means that more than four satellites are visible at any time on Earth. In addition, GPS satellites continuously transmit information about time, its own orbit information, general orbital information of all satellites, reliability of each information, and other error correction factors necessary for navigation.

The autonomous navigation system for vehicles, a typical example of applying GPS, recognizes the location of the vehicle by the GPS data received through the GPS receiver, sets the route to the destination set by the driver through the GPS data on its own terminal, It is a system that displays to the driver in correspondence with map data stored in the storage medium.

However, this method has a limited amount of data that can be stored in a storage medium such as a CD-ROM, thus limiting the driver to a more optimized path. In addition, since expensive equipment such as a CD-ROM driver and a graphic controller that stores map data must be installed, the manufacturing cost is high and the penetration rate is not high. In addition, since the location information is provided using a graphic, there is a problem in that an accident rate is high as the driver needs to watch the screen while driving.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, by providing a GPS receiver in a portable wireless terminal and guiding the location information using the same to provide a location information guide system and method using GPS that is easy to carry and use. There is a problem.

Another technical problem of the present invention is to convert the location information of a desired destination into a voice signal and provide the location information through a wireless terminal so that the user can receive the location information to a low-cost terminal without a separate display.

1 is a diagram illustrating a communication network to which the location information guide system of the present invention is applied.

2 is a detailed configuration diagram of the location information guide system of the present invention.

3 is a block diagram of a wireless terminal equipped with a GPS receiver applied to the present invention.

4 is a flowchart illustrating a location information guide method in the location information guide system of the present invention.

5 shows an example of a data structure for explaining the method of guiding location information of the present invention.

<Description of the symbols for the main parts of the drawings>

10: GPS satellite 20: location information guidance system

30: wireless communication terminal 32: user authentication unit

34: coordinate processing unit 36: moving path tracking unit

38: image processing unit 40: voice conversion unit

42: database 44: user database

46: coordinate database 48: GIS map database

50: microprocessor 52: ROM

54: RAM56: wireless modem

58: receiving module 60: transmitting module

62: GPS antenna 64: GPS receiver

66: digital signal / voice conversion unit 68: key input unit

70: voice signal / digital conversion unit

The present invention for achieving the above-described technical problem in a location information guide system for guiding a moving path to a specific destination according to the user's request by grasping the user's location in real time carrying a wireless terminal with a GPS reception function A coordinate processor for tracking a starting position where the user accesses the location information guide system, a current location that changes in real time according to the movement of the user, and a destination location input by the user through the wireless terminal, and tracked by the coordinate processor A moving path tracking unit for calculating an optimal path to the destination according to one coordinate information, an image processing unit for outputting the moving path calculated by the moving path tracking unit as image map data, and image map data output from the image processing unit Optimal scene to be moved by user based on It includes the parts of speech to converted into a voice signal.

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

1 is a diagram illustrating a communication network to which the location information guide system of the present invention is applied.

A mobile body (user, vehicle, etc.) carries a wireless terminal 30, which includes a GPS reception function. The GPS satellite 10 continuously transmits signals to the GPS receiver mounted in the wireless terminal 30. The location information guide system 20 performs user authentication on a mobile object connected to the location information guide system 20 through the wireless terminal 30, and receives the GPS information from the GPS satellite 10 through the wireless modem of the wireless terminal 30. The user's location can be determined in real time by receiving the signal. When the user inputs a specific destination location, the user calculates a path from the user's current location to the specific destination, converts it into a voice, and informs the moving object through the wireless terminal 30.

In the present invention, the wireless terminal 30 may be any portable wireless terminal having a GPS function and a telephone call function, such as a GPS receiver having a voice output means and a mobile phone having a built-in GPS chip. In addition, the location information guide system 20 calculates the route information from the user's current location to the destination in conjunction with the GPS satellite 10 and converts the result into voice and provides the user with a risk of accident when the user is driving. It can lower and shorten the time required for graphic processing.

In other words, when a user accesses the location information guide system 20 and inputs a destination to be arrived, the user can listen to the route to the destination by guide broadcast, similarly to using the ARS. will be.

2 is a detailed configuration diagram of the location information guide system of the present invention.

In a preferred embodiment of the present invention, the location information guide system 20 includes a user authenticator 32, a coordinate processor 34, a movement path tracker 36, an image processor 38, a voice converter 40, and a database. (42). The database 42 includes a user DB 44, a coordinate DB 46, and a GIS map DB 48, each of which may be composed of one table or a plurality of tables.

When the user accesses the location information guide system 20 via the wireless terminal 30, the user authentication unit 32 receives signals received from the GPS satellites 10 through the GPS receiver and the wireless modem of the wireless terminal 30. Receives the user's current location. Thereafter, the user is required to input personal information for charging the service fee, and authenticates whether the user is a valid user with reference to the user DB 44, and stores the charging state of the user according to the service usage details in the user DB 44. .

The coordinate processing unit 34 displays the connection starting position received through the GPS satellite 10 at the moment when the user accesses the location information guidance system 20 and the destination location input by the user via the wireless terminal 30. ). In addition, the user's current position that changes as the user moves is received in real time from the GPS satellite 10 to update the coordinate DB 46.

The movement route tracking unit 36 refers to the GIS map DB 48, calculates an optimal route to the destination to be known according to the current position of the user, and updates the coordinate DB 46 accordingly. That is, the movement path tracking unit 36 may start to the destination where the user wants to know according to the starting position where the user first accesses the location information guide system 20, the user's current location and the destination location that changes in real time according to the user's movement. Tracks the path of in real time.

The image processor 38 outputs the location information tracked by the movement path tracking unit 36 in real time as image map data. The output contents of the image processor 38 may be selectively provided to the user according to the specification of the wireless terminal 30.

The voice converter 40 converts an optimal path (intersection, rotation, path deviation information, etc.) to which the user should move based on the image map data output from the image processor 38 into a voice signal to convert the wireless terminal 30 into a voice signal. To be sent in real time.

Since the user can hear the route to be moved by voice, even if it is visually inconvenient, such as driving a car, the user can easily use the location information guide system 20.

3 is a configuration diagram of a wireless terminal equipped with a GPS receiver applied to the present invention, and means for converting and outputting destination route information inputted from a GPS receiver 64 and a location information providing system to a conventional wireless terminal ( 66).

The microprocessor 50 may control the wireless terminal 30 in real time and process data at high speed. The ROM 52 stores an application program necessary to operate the wireless terminal 30, and the RAM 54 stores system data so that the application program can be executed. The wireless modem 56 allows the wireless terminal 30 and the location information guide system 20 to communicate in a wireless environment.

The wireless terminal 30 of the present invention is equipped with a receiving module 58 for converting and outputting a digital signal transmitted from the location information guide system 20 to a voice signal. The digital signal transmitted from the location information guide system 20 is a voice signal generated from a user's current location to a specific destination and converted back into a digital signal. As the signal is converted into a voice signal and outputted, the user can listen to a moving path to the destination.

On the other hand, the wireless terminal 30 of the present invention is provided with a transmission module 60 for transmitting the information input from the user to the location information guide system 20. The transmission module 60 includes a key input unit 68 for processing a user's command input through a keypad, and a voice for digitally converting a signal input by the user to a location information guide system 20. And a signal / digital converter 70.

The GPS receiver 64 receives the information transmitted from the GPS satellites 10 via the GPS antenna 62, and thus the user's location is transmitted to the location information guide system 20 via the wireless modem 56.

Although not shown, the wireless terminal 30 of the present invention includes a digital signal / image converter and a displayer for converting and outputting a digital signal generated and transmitted by the image processor 38 of the location information guide system 20 to an image signal. In addition, the user may check the image data of the moving path transmitted from the location information guide system 20 by the time.

4 is a flowchart illustrating a location information guide method in the location information guide system of the present invention, and FIG. 5 shows an example of a data structure for explaining the location information guide method according to the present invention.

When the user who owns the wireless terminal 30 equipped with the GPS receiver accesses the location information guide system 20 of the present invention, the location information guide system 20 is a valid user for charging according to the service usage history of the user. Authentication (S101).

The location information guidance system 20 obtains a connection start position of the user by a signal received from the GPS satellite 10 through the wireless modem of the wireless terminal 30 to a valid user, and selects a destination to be guided to the user. It is required to input, and generates the current position coordinates that change according to the movement of the user (S102). The user may input a specific destination by a keypad operation or a voice input provided in the wireless terminal 30. The location information guide system 20 generates information on connection start coordinates for each user connected to the system, current coordinates that change in real time according to the movement of the user, and destination coordinates requested by the user, as illustrated in FIG. 5A.

Since the location of the user changes in real time, the location information guide system 20 continuously monitors the change in coordinates according to the user's movement while referring to the GIS map to determine the user's connection start location, the current location and destination location that change in real time. It calculates and extracts the movement path accordingly (S103). The result of extracting the user's location and destination location using the GIS map is generated as shown in FIG. 5B. FIG. 5B shows a table of the user's connection start position (a), the current position (b) while moving, the destination position (c), and the movement route (d → e → f → g) extracted from the location information guidance system 20. It shows what was generated.

Thereafter, the location information guide system 20 outputs the user's connection start position, the current location that changes according to the movement, the destination location, and the extracted movement route to the displayer as image map data (S104).

When the image map data is output as described above, the location information guide system 20 converts the extracted image movement path into a vector (see FIG. 5C), and finally performs a final audio movement by matching a predetermined audio signal for each vector component. The route data is generated (S105). Thereafter, the voiced movement path is converted into a digital signal and transmitted to the user's wireless terminal 30 (S106).

For example, the moving path shown in the displayed image map is subdivided at each starting point (straight, right, left, U-turn, etc.), and each segmented portion is mapped by an arrow. Referring to FIG. 5C, the movement paths d → e → f → g correspond to the vector tables ↑, →, ↑, ←, respectively, and generate a voice signal by mapping the preset voice information to each vector. will be. When the user wants to reach the point (c) while accessing the location information guide system 20 at the point (a) and moves to the point (b), the user may reach the destination by going straight, right turn, U turn, and left turn. It means that there is. At this time, the location information (large building name, school name, etc.), which are notable at the beginning of the segmented moving path, is generated in advance as voice information, and the vector table is converted to voice and guided together to guide the user more easily. Location information can be guided.

By converting and outputting a digital signal transmitted to the wireless terminal 30 to a voice signal, it is possible to guide the movement path to the user similarly to the answering machine. In addition, since the GPS terminal can check the current location of the user in real time through the wireless terminal 30 of the received user when tracking and generating the movement route, the user from the movement route guided by the location information guide system 20. In case of departure, the user may always provide the correct movement path by informing the user of the departure voice and calculating and providing a new movement path.

In addition, in the preferred embodiment of the present invention, the moving path output as the image map data may be converted into a protocol suitable for a wireless environment, and transmitted to a user wireless terminal equipped with a display. In this way, the user can visually check the moving path as well as the voice information.

As such, those skilled in the art will appreciate that the present invention can be implemented in other specific forms without changing the technical spirit or essential features thereof. Therefore, the above-described embodiments are to be understood as illustrative in all respects and not as restrictive. The scope of the present invention is shown by the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

As described above, the present invention provides a CD-ROM storing map information by receiving destination information from a user carrying a wireless terminal having a GPS reception function, and guiding a moving path from a user's current location to a destination by voice. The location guidance service can be provided at a low service cost without using a wireless terminal equipped with expensive devices such as a driver and a displayer. In addition, since the location information can be guided to the working user, such as driving without visual interference, the safety of the moving user can be guaranteed.

The present invention is expected to become more common when the GPS receiver chip is embedded in the portable telephone having a high personal retention rate, thereby providing services to more users.

Claims (3)

In the location information guide system for guiding a moving route to a specific destination according to the request of the moving object by real-time to determine the location of the moving object carrying a wireless terminal equipped with a GPS reception function, A coordinate processor for tracking a starting position of the moving object connected to the position information guide system, a current position according to a real-time position change of the moving object, and a destination position required by the moving object; A movement path tracking unit for calculating an optimal path to the destination according to the coordinate information tracked by the coordinate processing unit; An image processor for outputting the moving path calculated by the moving path tracking unit as image map data; And An audio conversion unit for converting an optimum moving path of the moving object into an audio signal based on the image map data output from the image processing unit; Position information guidance system using a wireless communication terminal equipped with a GPS receiver having a. In the location information guide method for guiding a moving path to a specific destination according to the request of the moving object by identifying the location of the moving object carrying a wireless terminal having a GPS reception function in real time, Acquiring a connection start position of the moving object by a signal received through the wireless terminal from a GPS satellite, and generating a current position coordinate according to a real-time position change of the moving object and a destination coordinate required by the moving object; Extracting a start position of the moving object, a current position that changes in real time, a destination location, and an optimal moving path while monitoring the change of the position of the moving object in real time; Displaying the optimal moving path as image map data; Converting the optimum moving path displayed by the image map data into a vector and generating voice moving path data by matching a predetermined voice signal with respect to the vector component; And Transmitting the voice movement path data to a wireless terminal of the moving object; Location information guidance method using a wireless communication terminal equipped with a GPS receiver comprising a. The method of claim 2, The mobile device is a location information guide method using a wireless communication terminal equipped with a GPS receiver for inputting destination information by operation or voice input of a keypad provided in the wireless terminal.