KR100521057B1 - Method for keeping reverse path in telematics terminal - Google Patents

Abstract

The present invention relates to a vehicle information terminal, and more particularly, to a method for storing information received in a vehicle information terminal in a reverse direction. The present invention includes the steps of searching for the movement route information to the destination requested by the user, outputting the found movement route information, and converting the found movement route information into the reverse movement route information, which is the movement route from the destination to the starting point. And storing it. In the case of converting the reverse travel path information, the reverse path information can be separately searched and stored for the point where the reverse conversion is not performed, and the converted reverse travel path information can be transmitted to the outside through a communication means. Therefore, in the present invention, when the user moves back in the reverse direction, the user can access the vehicle information system again and search for the reverse movement path without using the output forward movement path information. By converting and storing, not only the security of the problem of an increase in the cost and system load due to unnecessary access is secured, but also the user can conveniently use the movement path information.

Description

Method for keeping reverse path information in vehicle information terminal {Method for keeping reverse path in telematics terminal}

The present invention relates to a vehicle information terminal, and more particularly, to a method of converting and storing received forward movement route information in a reverse direction in order to search for a movement route desired by a user.

The development of information and communication technology is bringing a big change in automobile life. As drivers drive cars, they can receive not only traffic information, but also various information and services related to economic, cultural and general life. The development of intelligent transportation system has greatly improved driver safety and convenience.

With this movement, many electronic systems used in homes and offices are installed in automobiles in the era of personalization and personal mobile communication in recent years, and wireless communication and personal computer (PC) for voice and data communication. , Electronic technologies such as personal digital assistants (PDAs) and computer platforms such as computer game consoles are becoming the basic building blocks for the design of so-called connected cars.

Recently, telematics is emerging to implement such a connected car, which is also called a vehicle information terminal. This telematics is a technology that allows users to send and receive information based on wireless, voice data communication, and satellite positioning system (GPS) .It uses the positioning system and wireless communication network to provide drivers and passengers with traffic information and emergency situations. It is a terminal and an operating system that can provide various mobile services such as coping with the problem, remote vehicle diagnosis, and internet use (financial transaction, news, email, etc.). It is an end-to-end solution that includes not only wired / wireless and hardware, but also all content and services.

Conventionally, in using such a telematics navigation device, only a forward movement path is received when a movement path is received. Therefore, when the user returns to the route again, there is a need to access the vehicle information system and search for the movement route. In addition, since the vehicle information system had to be accessed every time, this caused a problem of excessive cost and system load.

Accordingly, an object of the present invention for solving the above problems is that when a user moves back a route traveled using the vehicle information system in the reverse direction, the user does not need to access the vehicle information system again and search for the reverse movement route. When the forward movement path is received, the user can convert the data in the reverse direction so that the user can conveniently use the vehicle information terminal. In addition, it is possible to view the reverse path without accessing the vehicle information system every time to compensate for the problem of overloading the system load and cost.

According to an aspect of the present invention, a first step of searching for travel path information to a destination requested by a user, a second step of outputting searched travel path information, and the searched travel path information from a destination And a third step of converting and storing the reverse movement route information, which is the movement route up to. The method may further include outputting the stored reverse movement path information according to a request for providing the reverse movement path of the user.

The backward movement path information is a value symmetrical with the output forward movement path information. When the forward movement path information is a right turn, it is turned left. When the forward movement path information is a left turn, it is turned right and when the forward movement path information is straight. Go straight. In addition, the reverse path information may be separately searched and stored for the point where the reverse conversion is not performed in the backward movement path information conversion and storage step. The converted route information may be transmitted to the outside through a communication means, that is, a transmission means such as a CDMA module or a USB.

The search step of searching for movement route information includes transmitting a user's destination to the map information center and receiving a movement direction from the map information center at an intersection appearing as the user moves. When converting and storing in the reverse direction, whenever the moving direction at the intersection is received, the moving direction is symmetrical to the moving direction and stored. In addition, when searching for the movement route information, when the user inputs the destination, the map information database is searched to extract the movement route information to the destination.

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

1 is a control block diagram of a vehicle information terminal to which the present invention is applied.

The vehicle information terminal of the present invention includes a central processing unit (CPU) 138 for controlling the apparatus as a whole, a memory 132 for storing various kinds of information, a key control unit 135 for controlling various key signals, and a TFT LCD display. It is provided with a main board 141 with a built-in LCD control unit 129 for control. The central processing unit 138 controls to convert the forward movement path information, which will be described later in the present invention in the reverse direction, to be stored.

The memory 132 stores map information required for displaying the vehicle guide on a map. In addition, the present invention stores forward movement path and reverse movement path information described below. The main board 132 is assigned a unique device number to receive a GPS signal for CDMA unit 161, which is a mobile communication terminal embedded in the vehicle, location guidance of the vehicle, tracking the route from the starting point to the destination, or the like. The GPS unit 155 for transmitting the traffic information collected by the GPS signal, the CD deck 152 for reproducing the CD signal, and the gyro 149 are connected through a cable or directly. The CDMA unit 161, the GPS unit 155, and the like receive signals through the antennas 164 and 158.

The main board 141 is connected with a TV module 143 for receiving a TV signal, and the TV module 143 receives a TV signal through the TV antenna 146. The main board 141 is connected to the TFT control unit 103 under the control of the LCD control unit 135 and the front board 106 under the control of the key control unit 135 via the interface board 100. The TFT LCD 103 displays various video signals and text signals. The front board 106 includes buttons for inputting various key signals, and the main board 141 provides a key signal corresponding to a user-selected button. To the side. The front board 106 includes a menu key for directly inputting traffic information, and the menu key is configured to be controlled by the key controller 135.

In addition, an audio board for processing various audio signals may be connected to the main board 141. The audio board 109 includes a microcomputer 121 for controlling the audio board 109, a tuner 112 for receiving a radio signal, a power 118 for supplying power to the microcomputer, and outputs of various audio signals. It includes a signal processor 115 for performing a signal processing for.

The audio board 109 is connected to a radio antenna 126 for receiving a radio signal and a tape deck 123 for playing an audio tape, and the audio board 109 is also connected to the interface board 100. do. The audio board 109 is also connected with an amplifier 179 for outputting a voice signal processed by the audio board 109.

The amplifier 179 is connected to the vehicle interface 167. In addition, the audio board 109 and the main board 141 are connected to the vehicle interface 167. The vehicle interface 167 is connected with a speed sensor 176 for detecting a speed of the vehicle, an airbag 173 for providing safety, a hands-free 170 for inputting a voice signal without using the hand of the vehicle driver, and the like. .

The speed sensor 176 is controlled to calculate the vehicle speed while driving and to be supplied to the central processing unit when the traffic information is input. This is because the traffic information is configured to include detection information of the speed sensor.

2 is a flowchart illustrating a method for storing reverse movement path data according to the present invention.

In order to receive the movement route data to the destination, the user inputs the location information of the destination to which the user wants to go, and inputs the movement route data map request of the destination (step 210). In response to the input map request, the center receives the map data of the place requested by the user and outputs it on the screen for display (step 220). The forward movement route data thus output is used when the user moves to the destination, and the vehicle information terminal converts the reverse movement route data into the vehicle movement information terminal and stores it in the vehicle information terminal (step 230).

In this case, the backward movement path data is a value in a direction symmetrical with the output forward movement path data. For example, if the forward movement path data is a right turn, the reverse movement path information is a left turn, and if the forward movement path data is a left turn, it is a right turn, and when the forward movement path data is straight, it is converted to the opposite direction and stored. do. In addition, the reverse path information may be separately searched and stored for the point where the reverse conversion is not performed in the backward movement path information conversion and storage step.

When the user requests the reverse map data to the vehicle information terminal when the user returns to the reverse direction (step 240), the vehicle information terminal outputs the reverse map data stored in advance (step 250). In addition, the converted reverse path data may be transmitted to the outside through the reverse mobile path communication means.

3A is a diagram illustrating a step of receiving forward movement path data, converting the reverse path data, and storing the reverse path data.

When the user moves for the first time, after inputting the location information of the destination where the user wants to go, the user inputs a button for requesting movement route data. According to this request, the center searches for the movement route data corresponding to the location information of the destination, receives it from the vehicle information terminal, and outputs it to the screen. As shown in FIG. 3A, the output is displayed on the screen, and the user may go through the steps 1 to 5 from the starting point to the destination point. Here, moving from the departure point to the A intersection is step 1, moving from the A intersection to the B intersection step 2, moving from the C intersection to the D intersection step 3, and the step from the D intersection to the destination 5 step Assume

When the user requests forward directions, Step 1 from the departure point to Intersection A is 'go straight', Step 2 from Intersection A to Intersection B is 'Left', and Step 3 from Intersection B to Intersection C is 'Right' ', 4 steps from intersection C to D intersection' turn right ', step D from the intersection to the destination' 8 o'clock left 'outputs the movement route data. The user may move from the starting point to the destination according to the output movement path data, and the output forward movement path data is converted into the reverse direction and stored.

In other words, when the moving path is returned in the reverse direction, the forward movement path data is converted into a symmetric value of the forward movement path data and stored. Therefore, in step 5 from the destination to the intersection D, the direction is the direction of symmetry of the original forward movement path data, and in step 4 from the intersection D to the C intersection, the symmetry of the forward movement path data '8 o'clock right' 4 o'clock to the right, which is the symmetrical direction of forward movement route data 'turn right' from intersection C to intersection B. 'turn left' which is the symmetrical direction, and 'right turn' of forward movement route from intersection B to intersection A. It is converted to 'left', which is the symmetrical direction, and 'straight', which is the symmetrical direction, of the forward movement path data 'straight' from the intersection of A to the starting point.

3B is a diagram illustrating a step of searching for and storing a bypass path.

In the case of converting forward movement path data to reverse movement path data as shown in FIG. 3A, and if it is assumed that reverse conversion is not performed at the intersection C, it is possible to search for another bypass path and receive and store it. Do. That is, as shown in FIG. 3B, the detour route data that is returned to the intersection through the C-1 intersection, the C-2 intersection, the C-3 intersection, and the C-3 intersection is stored and received.

In the 5th step from the destination to the D intersection, the method for searching and storing the detour path at the point where the backward movement path data is not converted is stored in the straight direction, which is the symmetrical direction of the forward movement path data, and at the D intersection In the 4th step to the intersection with the C intersection, the direction of the right movement at 4 o'clock, which is the symmetry of the forward movement path data '8 o'clock', is searched for the detour path at the intersection of the intersection C where the reverse movement path data is not converted From C intersection to C-1 intersection 'straight', C-1 intersection to C-2 intersection 'right', C-2 intersection to C-3 intersection 'right', C-3 intersection C- Intersection 4 is 'Turn Right', 'Turn Left', which is the symmetrical direction of 'Turn Right' from the C Intersection to Intersection B, and 'Right Turn' from the B Intersection to A The "left" in a direction that is referred to, and stores the converted at A intersection to the "straight ahead" in the direction in which the symmetry of the forward motion path data 'straight' to the starting point.

 3C is a table showing backward movement path data according to forward movement path data.

The backward movement path data is converted into a value in a direction symmetrical with the forward movement path data and stored. That is, when the movement route data is a right turn, it is left turn, when it is left turn, it is turned right and when it is straight, it is straight. In addition, when the movement path data is 11 o'clock on the right, it is 1 o'clock on the left; when the movement path data is 10 o'clock on the left, it is 2 o'clock on the left; and when the movement path data is 9 o'clock, at 3 o'clock, If the movement route data is left 8 o'clock, the right 4 o'clock direction, if the movement route data is 7 o'clock left, the right 5 o'clock, and if the movement route data is 6 o'clock, 12 o'clock .

As mentioned above, although this invention was demonstrated to some 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 moves back in the reverse direction, the user moves backward through the output forward movement route information without the need to access the vehicle information system again and search for the reverse movement route. By converting and storing the route information, it not only secures the problem of an increase in the cost and system load due to unnecessary access, but also enables the user to conveniently use the movement route information.

1 is a control configuration diagram of a vehicle information terminal.

2 is a flowchart illustrating a method for storing backward movement path data.

3A is a diagram illustrating a step of receiving forward movement path data, converting the reverse path data, and storing the reverse path data.

3B is a diagram illustrating a step of searching for and storing a bypass path.

3C is a table showing backward movement path data according to forward movement path data.

Claims (9)

Searching for movement path information to a destination requested by the user; Outputting searched movement path information; Converting and storing the searched movement route information into reverse movement route information, which is a movement route from a destination to a departure point; Reverse movement path information providing method in a vehicle information terminal comprising a. The method of claim 1, And outputting the stored reverse movement path information according to a request for providing a reverse movement path of a user. The method of claim 1, And the reverse movement path information is a value in a direction symmetrical with the output movement path information. The method of claim 3, wherein the direction of symmetry with the movement path information is If the travel route information is right turn, it is left turn. If the travel route information is left turn, it is turned right. And if the movement route information is straight, the movement direction information storage method in the vehicle information terminal. The method of claim 1, A method for storing backward movement path information in a vehicle information terminal, characterized by separately searching for and storing detour path information for a point where reverse conversion is not performed in the reverse movement path information conversion and storage step. The method of claim 1, And transmitting the converted reverse movement path information to the outside through a communication means. The method of claim 1, wherein the searching of the movement route information comprises: When the user enters a destination, sends it to the Map Information Center, Receiving a direction of movement at the intersection appearing as the user moves from the MCC Reverse movement route information storage method in a vehicle information terminal comprising a. The reverse direction of the vehicle information terminal according to claim 7, wherein the converting and storing of the backward movement path information comprises converting and storing the reverse direction of the movement path in a movement direction symmetric to the movement direction each time the movement direction at the intersection is received. How to save the route information. The method of claim 1, wherein the searching of the movement route information comprises: searching for a map information database and extracting movement route information to the destination when the user inputs a destination.