KR20080057649A - Navigation method of vehicle information terminal and apparatus thereof - Google Patents

Abstract

A navigation method in a vehicle information terminal and an apparatus thereof are provided to prevent waste of time to drop by a gas station which is not located on a path to the destination. A navigation method in a vehicle information terminal includes the steps of: setting a path to a destination(S11); calculating a DTE(Distance To Empty) of the vehicle by checking the remaining fuel(S12); searching gas stations on the path based on the DTE(S13); selecting one of the gas stations the vehicle can reach with the remaining fuel(S14); notifying the driver with sound if the selected gas station is the last station which the vehicle is able to reach with the remaining fuel(S15,S16); and guiding the selected gas station if the driver selects road guidance to the selected gas station(S17,S18).

Description

Road guidance method of vehicle information terminal and its device {NAVIGATION METHOD OF VEHICLE INFORMATION TERMINAL AND APPARATUS THEREOF}

1 is a view showing the configuration of a road guidance apparatus of a vehicle information terminal according to an embodiment of the present invention.

2 is a flowchart illustrating a road guidance method of a vehicle information terminal according to an exemplary embodiment of the present invention.

FIG. 3 is a diagram illustrating gas stations searched on a moving route to a destination by a road guidance method of a vehicle information terminal according to an exemplary embodiment of the present invention.

FIG. 4 is a diagram illustrating a method of selecting a gas station among three gas stations when a gas station is searched on a path of a vehicle moving to a destination at an increasing speed by a method of guiding a vehicle information terminal according to an exemplary embodiment of the present invention.

FIG. 5 is a diagram illustrating a method of selecting a gas station among three gas stations when a gas station is searched on a path of a vehicle moving to a destination at a decreasing speed using a road guidance method of a vehicle information terminal according to an exemplary embodiment of the present invention.

*** Explanation of symbols for main parts of drawing ***

101: calculation unit 102: control unit

103: audio output unit 104: display unit

P: location of the vehicle E: destination to be moved

gn: the gas station location on the route to the destination

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle information terminal, and more particularly, to a road guidance method and a device thereof.

In general, a vehicle information terminal is applicable to vehicle location tracking, and the vehicle information terminal is a trunked radio system (TRS) and a personal communication service (PCS) network. Voice and text services can be used at the same time, and the Car Navigation System (CNS) is supported. In addition, it is a device that can be used as a terminal that can determine the position of the vehicle using a satellite (GPS) Global Positioning System (GPS) at an altitude of 21,000 km above the ground.

Recently, with the dissemination of the vehicle information terminal, various services such as a traffic information service and a neighboring facility information service are provided in relation to vehicle information, and a road guidance service using a location of the vehicle may be an example. Can be.

Meanwhile, when the vehicle information terminal searches for the gas station selected by the user while driving to a destination, the vehicle information terminal according to the related art searches for the gas stations close to the current location of the vehicle and informs the user of the result, and the user selects one of the searched gas stations. When selecting the vehicle information terminal guided the route of the selected gas station.

Therefore, the road guidance method of the vehicle information terminal according to the prior art has to search for a gas station close to the current position of the vehicle and guide the location of the searched gas station, so that the vehicle has to go back the way it has been to move to the gas station or There was a problem in that the departure from the path to the destination to go to the gas station.

In addition, if the gas station searched by the road guidance method of the vehicle information terminal according to the prior art is located far from the current position of the vehicle, the fuel is depleted before the vehicle moves to the searched gas station becomes impossible to operate the vehicle There was this.

Accordingly, an object of the present invention is to provide a method and apparatus for guiding a vehicle information terminal capable of searching for and guiding a location of a gas station existing on a moving path that can move to the remaining fuel of the vehicle when the user is moving in a vehicle. To provide.

According to another aspect of the present invention, there is provided a road guidance method of a vehicle information terminal, the method comprising: calculating a maximum moving distance at which a vehicle may move based on a fuel remaining amount of a vehicle; And retrieving a gas station present on the travel path from the current vehicle position to the calculated maximum travel distance.

In accordance with an aspect of the present invention, there is provided a road guidance method of a vehicle information terminal, when a plurality of gas stations searched on the movement path are selected, selecting an adjacent gas station from the maximum moving distance by a user's preset setting. Wow; And if the selected gas station is the last gas station on the moving path, notifying the user that the selected gas station is the last gas station.

According to an embodiment of the present invention, a road guidance method for a vehicle information terminal may include: fuel for the vehicle periodically for a predetermined time when a route is set from a current location of the vehicle to a destination selected by the user; Checking the remaining amount is characterized in that for calculating the maximum travel distance that the vehicle can move from the current position of the vehicle.

According to an exemplary embodiment of the present invention, if there are a plurality of gas stations searched on the movement route, a gas station adjacent to the gas station may be selected based on the user's preset distance. When the gas station is re-searched after a predetermined time, if the selected gas station is included in the re-searched gas station, the selected gas station is reselected.

According to an exemplary embodiment of the present invention, if there are a plurality of gas stations searched on the movement route, an adjacent gas station may be selected from the maximum moving distance by the user's preset setting. When the gas station is re-searched after a predetermined time, if there is no selected gas station among the re-searched gas stations, an adjacent gas station is selected from the maximum moving distance by the user's preset setting.

The road guidance method of the vehicle information terminal according to an embodiment of the present invention for achieving the above object, when the user selects the route guidance of the selected gas station, it is characterized in that it guides to the route of the selected gas station.

According to an aspect of the present invention, there is provided a road guide apparatus for a vehicle information terminal, including: a calculation unit configured to calculate a maximum moving distance in which a vehicle may move based on a fuel remaining amount of a vehicle; A control unit for searching for a gas station on which the vehicle can move on the moving path based on the moving path from the current vehicle position to the destination selected by the user and the maximum moving distance calculated by the calculator; A voice output unit configured to output a route guidance to the searched gas station and a warning message of fuel shortage under the control of the controller; And a display unit for displaying the position and the path of the searched gas station under the control of the controller.

The road guide device of the vehicle information terminal according to an embodiment of the present invention for achieving the above object, by periodically checking the fuel remaining amount of the vehicle for a predetermined period of time to the maximum moving distance that the vehicle can move from the current position of the vehicle It is characterized by calculating the.

In order to achieve the above object, the road guide apparatus for a vehicle information terminal according to an exemplary embodiment of the present invention selects an adjacent gas station from the maximum moving distance by a preset of the user when there are several gas stations searched on the movement route. And if the selected gas station is the last gas station on the moving path, notifying the user that the selected gas station is the last gas station.

According to an exemplary embodiment of the present invention, if there are several gas stations searched on the moving path, the road guide apparatus of the vehicle information terminal selects an adjacent gas station from the maximum moving distance by the user's preset setting. When the gas station is re-searched after a predetermined time, if the selected gas station is included in the re-searched gas station, the selected gas station is reselected.

According to an exemplary embodiment of the present invention, if there are several gas stations searched on the moving path, the road guide apparatus of the vehicle information terminal selects an adjacent gas station from the maximum moving distance by the user's preset setting. When the gas station is re-searched after a predetermined time, if there is no selected gas station among the re-searched gas stations, an adjacent gas station is selected from the maximum moving distance by the user's preset setting.

The road guidance apparatus of the vehicle information terminal according to an embodiment of the present invention for achieving the object, when the user is informed that the selected gas station is the last gas station, and the user selects the route guidance of the selected gas station, the voice A control signal may be output to an output unit and the display unit to guide the route of the selected gas station.

Hereinafter, a road guide method and a preferred embodiment of a device of a vehicle information terminal for periodically searching for and guiding a location of a gas station existing on a movement path through which a vehicle can move with remaining fuel amount will be described with reference to FIGS. 1 to 5. It will be described in detail with reference to.

1 is a view showing the configuration of a road guidance apparatus of a vehicle information terminal according to an embodiment of the present invention.

As shown in FIG. 1, a road guide apparatus 100 of a vehicle information terminal according to an exemplary embodiment of the present invention includes a calculation unit 101 for calculating a maximum moving distance that a vehicle can move with the remaining fuel amount of a vehicle; A control unit (102) for searching for a gas station on which the vehicle can move on the moving path based on the moving path from the current vehicle position to the destination selected by the user and the maximum moving distance calculated by the calculating unit (101); A voice output unit 103 which outputs a route guidance to the searched gas station and a warning message of fuel shortage under the control of the control unit 102; It is composed of a display unit 104 for displaying the position and the path of the searched gas station under the control of the control unit 102.

Hereinafter, the operation of the road guidance device of the vehicle information terminal according to an embodiment of the present invention will be described in detail with reference to FIG.

2 is a flowchart illustrating a road guidance method of a vehicle information terminal according to an exemplary embodiment of the present invention.

The controller 102 sets a movement path from a current vehicle position to a destination selected by the user (S11).

The calculation unit 101 periodically checks the fuel remaining amount of the vehicle for a predetermined time and calculates the maximum moving distance that the vehicle can move from the current position of the vehicle (S12).

The controller 102 searches for the gas stations existing on the movement path from the position of the vehicle to the maximum movement distance based on the maximum movement distance calculated by the calculator 101 (S13).

The control unit 102 may be more fuel-hungry than usual due to traffic congestion and surrounding traffic conditions, and thus a margin width for preventing a situation in which fuel may be exhausted before reaching a gas station existing at the maximum travel distance (eg, For example, the fuel remaining amount of the vehicle among the searched gas stations taking into account approximately 20 km from the gas station at the maximum travel distance, or second or third from the gas station at the maximum travel distance). A gas station sufficiently movable is selected (S14). The margin width may be preset by the user.

If there is no gas station on the moving path next to the selected gas station (S15), the controller 102 notifies the user through the voice output unit 103 that the selected gas station is the last gas station (S16). On the other hand, if there is a gas station on the movement path next to the selected gas station, the calculation unit 101 controls to perform the step (S12) of calculating the maximum movement distance that can be moved to the remaining fuel amount of the vehicle.

The controller 102 notifies the user that there is no gas station on the moving path next to the selected gas station (S16), and when the user selects the route guidance of the selected gas station (S17), The path from the position of the vehicle to the selected gas station is displayed on the display unit 104 to guide the route of the selected gas station (S18).

Hereinafter, a preferred embodiment of the method for selecting a gas station (S14) sufficiently movable to the remaining fuel amount of the vehicle among the searched gas stations S13 will be described in detail with reference to FIGS. 3 to 5.

In order to describe an embodiment of the present invention, a gas station selected as a gas station sufficiently movable with the remaining fuel amount of the vehicle will be referred to as a final gas station.

FIG. 3 is a diagram illustrating gas stations searched on a moving route to a destination by a road guidance method of a vehicle information terminal according to an exemplary embodiment of the present invention.

FIG. 4 is a diagram illustrating a method of selecting a gas station among three gas stations when a gas station is searched on a path of a vehicle moving to a destination at an increasing speed by a method of guiding a vehicle information terminal according to an exemplary embodiment of the present invention.

FIG. 5 is a diagram illustrating a method of selecting a gas station among three gas stations when a gas station is searched on a path of a vehicle moving to a destination at a decreasing speed using a road guidance method of a vehicle information terminal according to an exemplary embodiment of the present invention.

A method of selecting a final gas station (S14) among the searched gas stations S13 will be described by way of example as follows.

As shown in Fig. 3, when moving from the current position P of the vehicle to the destination E, the gas station gn is searched for on the movement route. The locations of the gas stations are searched based on the fuel remaining amount of the vehicle and the maximum moving distance that can be moved at the average speed of the vehicle every minute.

A method of selecting a final gas station that can move to the remaining fuel amount of the vehicle among the searched gas stations will be described by way of example as shown in FIG. 4.

The gas station search is performed when the vehicle is at the position of P1 and when the vehicle moves to P2. If three gas stations in the travel path to the destination E are searched with gn-2, gn-1, and gn when the vehicle is in the position of P1, the fuel level of the vehicle and the average speed of the vehicle every minute If the gas station at the maximum distance to move to is selected as the final gas station, it will be a gas station gn. However, considering the margin, it is preferable to select the gas station gn-1 as the final gas station.

In addition, when the vehicle moved from the position of P1 to the position of P2 as the vehicle speed increased, the gas stations existing on the movement path to the destination E were searched for as gn-2, gn-1, and gn. Among the searched gas stations, there is a last gas station gn-1 that has already been selected before (when the vehicle is at the position of P1), and thus reselects the last gas station gn-1 that has already been selected without changing the last gas station.

In addition, the selection of the final gas station taking into account when the speed of the vehicle decreases when the vehicle moves from the position of P1 to the position of P2 will be described by way of example as shown in FIG.

If the gas station on the travel path to the destination E is searched for gn-2, gn-1, gn when the vehicle is in the position of P1, and the last gas station is selected as gn, the vehicle returns to the position of P2. When the vehicle speed decreases and moves, the gas stations on the travel path to the destination E are searched for gn-2, gn-1, and gn, and the fuel and the average speed traveled for a predetermined time are reduced. The final gas station selectable when the vehicle is at the position of P2 is gn-1. Since the selected last gas station gn-1 is not the last gas station gn that was previously selected (when the vehicle is at the position of P1), the last gas station gn-1 is changed to gn-1.

On the other hand, in the gas station search method as described above, the gas station search should be performed in consideration of the brand of the gas station preferred by the user, and the gas station search should be performed according to the fuel type (particularly, gas fuel).

As described in detail above, the road guidance method and apparatus of the vehicle information terminal according to an embodiment of the present invention, the gas station is located on the movement path that can move to the remaining fuel of the vehicle when the user is moving to the vehicle By periodically searching for a location for a certain time and guiding the route of the gas station, the user checks the fuel level from time to time, and if the fuel is insufficient, the user must search the gas station directly using the vehicle information terminal and select one of the searched gas stations to move. There is an effect that can solve the inconvenience.

As described in detail above, the road guidance method and apparatus of the vehicle information terminal according to an embodiment of the present invention, solve the problem of leaving the route to the destination to move to the gas station directly searched by the user Can be.

As described in detail above, the road guidance method and apparatus of the vehicle information terminal according to an embodiment of the present invention, wasted time to move to the gas station directly searched by the user by leaving the route to the destination Has the effect of reducing

Those skilled in the art will appreciate that various modifications and variations can be made without departing from the essential features of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

Claims (12)

Calculating a maximum moving distance that the vehicle can move with the remaining fuel amount of the vehicle; And searching for a gas station existing on a moving path from a current position of the vehicle to the calculated maximum moving distance. The method of claim 1, Searching for a gas station existing on a travel path from a current vehicle position to the calculated maximum travel distance may include: Selecting adjacent gas stations from the maximum moving distance according to a user's preset time when there are several gas stations searched on the movement path; And notifying the user that the selected gas station is the last gas station if the selected gas station is the last gas station on the moving path. The method of claim 1, Calculating the maximum travel distance, When the route from the current position of the vehicle to the destination selected by the user is set, periodically checking the fuel remaining amount of the vehicle for a predetermined time to calculate the maximum travel distance that the vehicle can move from the current position of the vehicle. The road guidance method of the vehicle information terminal, characterized in that. The method of claim 2, Selecting the gas station, If there are several gas stations searched on the movement route, when the gas station is selected from the maximum travel distance by the user's preset setting and the gas station is re-searched after a predetermined time, the selected gas station is included among the re-searched gas stations. And if so, reselects the selected gas station. The method of claim 4, wherein Selecting the gas station, If there are several gas stations searched on the movement route, when an adjacent gas station is selected from the maximum travel distance by the user's preset setting, and the gas station is re-searched after a predetermined time, the selected gas station is not among the re-searched gas stations. And a gas station adjacent to the gas station is selected from the maximum moving distance by the user's preset setting. The method of claim 2, Notifying the user that the selected gas station is the last gas station, And when the user selects the route guidance of the selected gas station, guiding the route of the selected gas station. A calculator configured to calculate a maximum moving distance in which the vehicle may move based on the remaining fuel amount of the vehicle; A control unit for searching for a gas station on which the vehicle can move on the moving path based on the moving path from the current vehicle position to the destination selected by the user and the maximum moving distance calculated by the calculator; A voice output unit configured to output a route guidance to the searched gas station and a warning message of fuel shortage under the control of the controller; And a display unit for displaying a position and a path of the searched gas station under the control of the controller. The method of claim 7, wherein The calculation unit, And periodically checking the fuel remaining amount of the vehicle for a predetermined time to calculate a maximum moving distance that the vehicle can move from the current position of the vehicle. The method of claim 7, wherein The control unit, When there are a plurality of gas stations searched on the moving path, a user may select an adjacent gas station from the maximum moving distance according to a predetermined setting of the user, and if the selected gas station is the last gas station on the moving path, the selected gas station is the last gas station for the user. The road guidance device of the vehicle information terminal, characterized in that the notification. The method of claim 9, The control unit, If there are several gas stations searched on the movement route, when a gas station is selected from the maximum travel distance by the user's preset setting and the gas station is re-searched after a predetermined time, the selected gas station is included among the re-searched gas stations. And if so, reselects the selected gas station. The method of claim 10, The control unit, If there are several gas stations searched on the movement route, when an adjacent gas station is selected from the maximum travel distance by the user's preset setting, and the gas station is re-searched after a predetermined time, the selected gas station is not among the re-searched gas stations. And a gas station adjacent to the gas station is selected from the maximum moving distance by the user's preset setting. The method of claim 9, The control unit, Informing the user that the selected gas station is the last gas station, and when the user selects the route guidance of the selected gas station, a control signal is output to the voice output unit and the display unit to guide the route of the selected gas station. The road guidance device of the vehicle information terminal.

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