KR101752159B1 - Navigation apparatus and control method thereof - Google Patents

Abstract

A navigation device is disclosed. The navigation device includes an input unit for inputting destination information from a user, a battery remaining amount detecting unit for measuring a remaining battery amount of the electric vehicle, a storage unit for storing a history of electric car charging, a display And the battery remaining amount measured by the battery remaining amount detecting unit, whether the vehicle can travel from the current position to the destination is calculated. If the vehicle can not travel to the destination, the electric vehicle is most frequently visited And a processor for controlling the display unit to preferentially guide the route to the closest point from the current position among the respective points of the charging station.

Description

≪ Desc / Clms Page number 1 > NAVIGATION APPARATUS AND CONTROL METHOD THEREOF &

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a navigation apparatus and a control method thereof, and more particularly, to a navigation apparatus and a control method thereof that are installed in an electric vehicle and perform a route guidance function to a destination.

Recently, various researches and developments have been made on electric vehicles as measures for energy saving and environmental problems. Electric vehicles are notorious for being a future automobile because they are less noise and do not produce harmful substances due to the environment friendly operation principle using electric motors and electric batteries.

However, a battery that provides the most important electric power to an electric vehicle has a problem that it is difficult to activate the electric vehicle due to a relatively short driving distance, because it can supply relatively smaller energy than a conventional internal combustion engine vehicle. However, due to the nature of the battery, there is a limit to the size and capacity of the battery that can be mounted on the electric vehicle, and accordingly, a charging system is required for the electric car driver to quickly replace or charge the battery during operation.

However, the information that the present electric car informs the driver about the charging point is limited, and therefore there is a problem that the driver can not select the charging station by reason of the distance and the cost. For example, even if the driver is a customer who mainly uses the charging station of 'A', it is a limitation that the navigation device searches all charging stations and guides the route regardless of the charging device.

Therefore, in order to solve such a problem, there is a demand for a solution that can inform the driver of the most appropriate charging station.

Also, unlike the rapid development of electric vehicles, the development of battery technology is very slow. Particularly, there is a problem that the charging time is long when the battery of the electric vehicle is charged.

Korean Patent Laid-Open Publication No. 10-2012-0116162 discloses a technology for guiding an appropriate path considering current battery charge amount. However, there is still a limit to providing a technical solution for reducing the battery charging time of an electric vehicle have.

Korean Patent Publication No. 10-2012-0116162

It is an object of the present invention to provide a navigation apparatus and a control method thereof that can provide driver-customized information to a charging station in consideration of charging time.

According to an aspect of the present invention, there is provided a navigation apparatus including: an input unit for receiving destination information from a user; A remaining battery level detector for measuring a remaining battery level of the electric vehicle; A storage unit for storing a necessary battery charge amount based on the destination information and a charge time for charging the necessary battery charge amount in a look-up table; A display unit for displaying charging station information; And a processor for displaying on the display unit charging station information, the charging station information being located within a movable distance according to an actual charge amount and the actual charge amount based on a lookup table of the storage unit.

Further, the processor may provide a navigation device for displaying the charging station information and charging charge information of the charging station on the display unit.

According to another aspect of the present invention, there is provided a navigation device comprising: an input unit for inputting destination information from a user; a battery remaining amount detecting unit for measuring a remaining battery amount of the electric vehicle; a storage unit for storing a history of charging the electric vehicle; A display unit for displaying input destination information and charging station information, and a controller for calculating whether or not the vehicle can travel from a current position to a destination based on information on a remaining battery level measured by the remaining battery level detecting unit, And a processor for controlling the display unit to guide the route to the closest point of the current location among the points of the charging station that the electric vehicle has most visited based on the history stored in the storage unit.

Further comprising a communication unit for communicating with a server that provides information on the charging cost of all the charging stations in the whole country, It is possible to control the display unit to guide the route to the point where the charging cost is the lowest among the points of the charging station that the car visited the most.

Further, the server further provides information on whether or not all the charging stations in the nationwide are currently operating, and the processor is operable to determine whether or not the current business is to be performed among the guided points based on information on whether or not the business is received via the communication unit It is possible to control the display unit to guide the route to the point of the next highest level except for the point where it does not.

In addition, if it is determined that the vehicle can travel to the destination, the processor can display message information indicating that the vehicle can travel to the destination with the current battery capacity.

The system also includes a GPS receiver for receiving GPS signals from at least one GPS satellite and delivering the signals to the processor, wherein the processor is operable to guide the route to the destination and the charging station on a map based on the received GPS signal have.

Meanwhile, a method of controlling a navigation device according to an embodiment of the present invention includes: receiving destination information from a user; measuring a remaining battery level of the electric vehicle; measuring a remaining battery level of the vehicle based on information on the measured remaining battery level; Storing the electric power stored in the electric power storage unit in a storage unit; calculating whether or not the vehicle can travel to the destination; And guiding the route to the branch with priority.

The step of guiding further comprises the steps of: receiving information on a charging cost from a server providing information on the charging cost of all the charging stations in the whole country, based on the information on the charging charge received, And guiding the route to the point where the charging cost is lowest among the points of the visited charging station together.

Further, the receiving step further receives from the server information on whether or not all the charging stations in the whole country are currently operating, and the step of guiding comprises the steps of: It is possible to guide the route to the branch point except the branch which is not currently operating.

In addition, if it is determined that the vehicle can travel to the destination, the informing step may display message information indicating that the vehicle can travel to the destination at the current battery level.

The method may further include receiving a GPS signal from at least one GPS satellite, wherein the piloting step may guide the route to the destination and the charging station on a map based on the received GPS signal.

In accordance with various embodiments of the invention described above, it is possible to provide customized information and guide the route to the charging station.

1 is a block diagram briefly showing a configuration of a navigation apparatus according to an embodiment of the present invention.
2 is a view for explaining various methods for guiding the route of a charging station according to an embodiment of the present invention.
3 is a view for explaining various methods for guiding the route of a charging station according to an embodiment of the present invention.
4 is a flowchart illustrating a method of controlling a navigation device according to an embodiment of the present invention.
5 is a block diagram of a navigation device according to another embodiment.
6 is a view showing the movable distance and the charging station information according to the charged amount
7 is a diagram illustrating an operation process of the second embodiment.
8 is a graph showing the charging rate according to the charged amount.

It is to be understood that the words or words used in the present specification and claims are not to be construed in a conventional or dictionary sense and that the inventor can properly define the concept of a term in order to describe its invention in the best possible way And should be construed in light of the meanings and concepts consistent with the technical idea of the present invention.

Throughout the specification, when an element is referred to as "including" an element, it means that it can include other elements as well, without departing from the other elements unless specifically stated otherwise. Also, the terms " part, "" module, "and" device ", etc. in the specification mean a unit for processing at least one function or operation and may be implemented by a combination of hardware and / .

A navigation apparatus according to an embodiment of the present invention includes an input unit for inputting destination information from a user, a battery remaining amount detecting unit for measuring a remaining battery amount of the electric vehicle, a storage unit for storing a history of charging the electric vehicle, And a controller for calculating whether or not the vehicle can travel from a current position to a destination on the basis of the information on the remaining battery level measured by the battery remaining amount detecting unit, And controls the display unit to guide the route to the closest point of the current location among the points of the charging station most visited by the electric vehicle based on the history stored in the electric vehicle.

Further comprising a communication unit for communicating with a server that provides information on the charging cost of all the charging stations in the whole country, It is possible to control the display unit to guide the route to the point where the charging cost is the lowest among the points of the charging station that the car visited the most.

Further, the server further provides information on whether or not all the charging stations in the nationwide are currently operating, and the processor is operable to determine whether or not the current business is to be performed among the guided points based on information on whether or not the business is received via the communication unit It is possible to control the display unit to guide the route to the point of the next highest level except for the point where it does not.

In addition, if it is determined that the vehicle can travel to the destination, the processor can display message information indicating that the vehicle can travel to the destination with the current battery capacity.

The system also includes a GPS receiver for receiving GPS signals from at least one GPS satellite and delivering the signals to the processor, wherein the processor is operable to guide the route to the destination and the charging station on a map based on the received GPS signal have.

Meanwhile, a method of controlling a navigation device according to an embodiment of the present invention includes: receiving destination information from a user; measuring a remaining battery level of the electric vehicle; measuring a remaining battery level of the vehicle based on information on the measured remaining battery level; Storing the electric power stored in the electric power storage unit in a storage unit; calculating whether or not the vehicle can travel to the destination; And guiding the route to the branch with priority.

The step of guiding further comprises the steps of: receiving information on a charging cost from a server providing information on the charging cost of all the charging stations in the whole country, based on the information on the charging charge received, And guiding the route to the point where the charging cost is lowest among the points of the visited charging station together.

Further, the receiving step further receives from the server information on whether or not all the charging stations in the whole country are currently operating, and the step of guiding comprises the steps of: It is possible to guide the route to the branch point except the branch which is not currently operating.

In addition, if it is determined that the vehicle can travel to the destination, the informing step may display message information indicating that the vehicle can travel to the destination at the current battery level.

The method may further include receiving a GPS signal from at least one GPS satellite, wherein the piloting step may guide the route to the destination and the charging station on a map based on the received GPS signal.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily carry out the present invention.

≪ Embodiment 1 >

1 is a block diagram briefly showing a configuration of a navigation apparatus according to an embodiment of the present invention.

Referring to FIG. 1, the navigation apparatus 100 of the present invention includes an input unit 110, a remaining battery level detector 120, a storage unit 130, a display unit 140, and a processor 150.

The navigation device 100 according to the present invention is a navigation device mounted on a vehicle for guiding a route to a destination, and is an electronic device that can be carried by the user such as a mobile communication terminal, a smart phone, a PMP, a PDA, a notebook, Computing devices.

Also, the battery of the electric vehicle can be basically charged at the charging station, and the discharged battery can be replaced with a fully charged battery.

The input unit 110 receives various information such as destination information from a user. The input unit 110 may include a plurality of keypads or may be implemented as a touch screen on the display unit 140 in a software manner instead of a physical keypad. The user may press an area corresponding to a predetermined key or key A command signal may be generated and output to the processor 150. Accordingly, when the user inputs the destination information, the command signal corresponding to the destination information can be transmitted to the processor 150.

The battery remaining amount detecting unit 120 is configured to detect the remaining capacity of the battery according to the charge / discharge state of the battery. Specifically, the battery remaining amount detecting unit 120 can detect the remaining capacity of the battery by measuring the voltage or current of the battery. Since the battery has a characteristic that the voltage drops depending on the use time, the battery remaining amount detecting unit 120 can measure the remaining capacity of the battery using the characteristics of the battery.

The remaining battery level detector 120 may divide the remaining capacity of the battery into a plurality of levels according to the magnitude of the measured voltage and detect information about the level to which the measured battery voltage belongs as the remaining capacity of the battery .

Also, the remaining battery level detector 120 may check and detect the remaining capacity of the battery at a predetermined time or period, and may transmit information to the processor 150.

The storage unit 130 may store an operation program for operating the navigation device 100 and may store various applications that can operate by controlling each functional block in the navigation device 100. [ For example, under the control of the processor 150, the navigation application may be driven to provide traffic information and a travel route.

In addition, the storage unit 130 may store the history of charging the electric vehicle. The history that the electric vehicle has performed the charging refers to a history of charging including information on the time at which the electric car performed the charging, the information of the charging station that performed the charging, and the number of times the charging was performed at the charging station it means. Here, the information of the charging station may include information such as the location of the charging station, the type of the business, and the location of the plurality of points.

The display unit 140 displays various kinds of information of the navigation apparatus 100 under the control of the processor 150 and receives input data generated by the input unit 110 and various information signals of the processor 150 have. Also, the map information and route guidance information stored in the storage unit 130, the intermediate waypoint information, the current battery information, the real time charge information, and the like can be received from the processor 150 and displayed.

The display unit 140 may be implemented by a variety of display devices such as a liquid crystal display (LCD), an organic light emitting diode (OLED) display, an active matrix organic light-emitting diode (AM-OLED), a plasma display panel ), And the like. The display unit 140 may further include an additional configuration depending on the implementation method. For example, when the display unit 140 is a liquid crystal type, the display unit 140 includes an LCD display panel (not shown), a backlight unit (not shown) And a driving substrate (not shown). In particular, in the present invention, the display unit 140 is preferably provided as a touch screen.

The processor 150 is a configuration for controlling the overall operation of the navigation apparatus 100. [

The processor 150 can calculate whether or not the vehicle can travel from the current position to the destination based on the information on the remaining battery level measured by the remaining battery level detector 120. [ The processor 150 determines the amount of electricity charged by the battery during driving and calculates the maximum travelable distance including the estimated traveling distance information that can travel to the current battery amount and the estimated traveling distance information Information can be calculated.

The method of determining the amount of electricity charged by the battery in the processor 150 as the travelable distance or determining the predicted travel distance by the amount of electric charge that can be charged at the time of traveling may include information on the consumption history stored in the storage unit 130 The amount of electricity consumed, the amount of electricity charged relative to the mileage), and the like.

Here, the information on the consumption history may be periodically updated. That is, since the amount of battery consumption and the amount of charge in the battery can be checked in real time through the battery remaining amount detecting unit 120, the amount of electricity consumed and the amount of charged battery during the travel distance from the specific location to the destination can be checked have.

Then, it is possible to change the information on the consumption history or to derive the average value by comparing the electricity consumption amount and the electric charge amount with respect to the mileage included in the information on the consumption history. The processor 150 can calculate whether or not it is possible to travel from the current position to the destination based on the maximum travelable distance information derived therefrom.

The processor 150 determines whether or not the vehicle can travel to the destination and if it is not possible to travel to the destination, based on the history stored in the storage unit 130, It is possible to control the display unit 140 to guide the path to the point with priority.

For example, if it is determined that the user has visited most of the 'A' charging stations from the history stored in the storage unit 130, the processor 150 determines that the charging station of the 'A' The route to the existing point can be given priority. If the charging station of 'A' is not within a predetermined distance (for example, 2 km), 'B', which is the next most visited charging station after the charging station of 'A' The route to the existing point can be guided to the next level.

Meanwhile, the navigation device 100 according to an embodiment of the present invention may further include a communication unit (not shown) for communicating with a server (not shown) providing information on charging costs of all the charging stations in the whole country .

At this time, the processor 150 displays the information on the charging cost received from the server through the communication unit so that the route to the point where the charging charge is lowest among the points of the charging station, 140).

The server can receive information on the current charging cost from the charging station in the entire area and can transmit information on the received charging cost to the navigation device 100. [ The processor 150 of the navigation device 100 can compare charging costs at each point of the charging station that the electric vehicle has most visited based on the information on the charging charge received from the server through the communication unit. The processor 150 may then control to display the path to the point at which the charge cost is lowest, along with the path to the nearest point in the current location.

Here, the user can select a route to the charging station point closest to the current position and the charging station point with the lowest charging cost.

In addition, the server can further provide information on whether or not all the charging stations in the nation are currently operating. The processor 150 may guide only the route to the point of sale, except the point where the current business is not performed, out of the points of the charging station to be guided, based on the information on whether or not the business is received through the communication unit. If the current highest priority charging station point is not operating, the processor 150 may control to guide the route to the point of the next higher order.

In addition, the processor 150 may determine whether or not the vehicle can travel from the current position to the destination. If it is determined that the vehicle can travel to the destination, the processor 150 may control to display message information indicating that the vehicle can travel to the destination with the current battery capacity.

The navigation device 100 may further include a GPS receiver (not shown) for receiving GPS signals from at least one GPS satellite and transmitting the GPS signals to the processor 150. [ The processor 150 may guide the route to the destination or charging station on the map based on the received GPS signal.

Further, the server may further transmit to the navigation device 100 information on at least one of information about a time required for charging all charging stations in the nation and information on whether or not to provide a battery replacement service. At this time, the processor 150 displays the information on the time required for the received charging, or the charging time of the display unit 140 to guide the charging point to a point of a charging station providing a battery replacement service, Can be controlled.

Meanwhile, the navigation device 100 according to an embodiment of the present invention may further store in the storage unit 130 a vehicle control module (BCM) that controls the vehicle to a minimum power consumption mode when a charging station to be guided is determined.

The BCM (Body Control Module) is a configuration for performing data input / output through CAN communication from other modules of switch and sensor signal input. The BCM is equipped with controls such as convenience equipments, wipers, rain sensor, door open warning, room lamp, door lock / unlock, seat belt warning, theft prevention function, door lock, emergency light, It is possible to reduce the cost and to control various equipment in one place so that it can be diagnosed and maintained in case of failure.

As described above, the navigation device 100 of the present invention provides information on each branch of the charging company that is frequently visited by the driver and information on the charging cost, guides the point of the charging station where a lot of visits are made, Customized guidance can be performed.

FIGS. 2 and 3 are diagrams illustrating various methods of guiding the route of a charging station, according to an embodiment of the present invention.

2 shows a screen for guiding a route to a point of a charging station where a car is most visited according to an embodiment of the present invention. As shown in FIG. 2, the charging station 21 of the 'A' company and the charging station 22 of the 'B' company may be present within a predetermined radius range at the current location of the automobile. At this time, based on the history stored in the storage unit 130, the navigation device 100 can determine whether the charging station visited most by the electric vehicle is 'A' or 'B'.

For example, the driver may be a customer who mainly uses the charging station of 'B'. The navigation apparatus 100 can control to guide the charging station of the company 'B' that the driver has visited the most. In this case, the navigation apparatus 100 searches for a route to the charging station 22 of 'B', which is a little further than the charging station 21 of 'A', which is closer to the current location of the car, can do.

FIG. 3 illustrates a screen for guiding a route to a charging station point having the lowest charging cost according to an embodiment of the present invention. As shown in FIG. 3, the 'B' charging stations 31 and 32 may be present at different locations within a predetermined radius range at the current location of the automobile. At this time, the navigation device 100 receives information on the charging service cost of the charging stations 31 and 32 of 'B' from an external server, and based on the received information on the charging charge, The display unit 140 may be controlled so as to guide the paths along the path.

For example, as shown in FIG. 3, the charging cost of the first charging station 31 of 'B', which is closer to the current location of the automobile, is 35,000 won and 'B', which is a little further than the first charging station 31, The charging cost of the second charging station 32 may be 30,000 won. At this time, the navigation apparatus 100 can search for and guide the route to the second charging station 32 whose charging cost is lower.

At this time, the navigation apparatus 100 can display the route to the first charging station 31, which is closer to the current car position, and the route to the second charging station 32, which is more inexpensive to charge, The user can finally guide the route to the selected charging station through the input unit 110. [

Also, as shown in FIG. 3, the navigation apparatus 100 may guide only the route to the second charging station 32, which is less expensive to charge according to the setting.

4 is a flowchart illustrating a method of controlling a navigation device according to an embodiment of the present invention.

First, information on a destination can be input from a user (driver) (S410). Then, the battery remaining amount of the electric vehicle is measured (S420). The measurement of the remaining battery level can be continuously or periodically measured before and during driving.

Thereafter, it is possible to calculate whether or not the vehicle can travel from the current position to the destination based on the measured information on the remaining battery level (S430).

If it is not possible to travel to the destination, it is possible to guide the route to the closest point of the current location among the points of the charging station most visited by the electric vehicle, based on the stored charging performance history (S440). Here, it is possible to receive information on the charging cost from the server providing information on the charging cost of all the charging stations in the whole country, and based on the information on the charging charge received, The path to the point where the charge cost is lowest can be guided together. Further, it is possible to receive further information on whether or not all the charging stations in the nation are currently operated from the server, and at this time, based on the information on the received sales information, You may also be guided through the path.

If it is determined that the electric vehicle can travel to the destination, message information indicating that the vehicle can travel to the destination with the current battery capacity can be displayed.

≪ Embodiment 2 >

FIG. 5 is a block diagram of a navigation apparatus according to another embodiment, and FIG. 6 is a diagram showing a movable distance and charging station information according to a charged amount. And FIG. 7 is a diagram illustrating an operation process of the second embodiment.

In describing the second embodiment, the same technical terms as those of the first embodiment are denoted by the same reference numerals, and a detailed description thereof will be omitted.

The navigation device 100 according to another embodiment of the present invention includes an input unit 110 for inputting destination information from a user, a battery remaining amount detection unit 120 for measuring a remaining battery amount of the electric vehicle, And a display unit 140 for displaying charging station information, and a look-up table of the storage unit 130. In addition, And a processor (150) for displaying charging station information located within a movable distance according to an actual charged amount on the display unit (140).

5 to 7, the navigation apparatus 100 according to another embodiment includes an input unit 110, a remaining battery level detector 120, a storage unit 130, a display unit 140, a processor 150, And a communication unit 160.

On the other hand, the wearable device 300 may include a communication unit 310 and a display device 320 for a display, such as a watch or a portable terminal.

The communication unit 310 of the wearable device 300 communicates with the communication 160 of the navigation device 100 to display the charging status information of the battery of the electric vehicle through the display device 320 from the navigation device 100 .

The first step is a step of receiving a mode selection command from the user through the input unit 110.

When the user enters the destination into the navigation device 100 and then proceeds to charge the battery by entering the first charging station after starting from the departure location, the user selects 1) a time saving mode and a time saving mode through the input unit 110 of the navigation device 100, 2) Cost saving mode can be selected.

The second step is to check the current amount of charge of the battery.

When the processor 150 receives the 1) time saving mode selection command from the user through the input unit 110, the remaining battery charge amount can be confirmed through the remaining battery charge detector 120. [ In this case, the current charge amount of the battery may be the first charge amount as the remaining charge amount of the actual battery.

The third step is to calculate the required charge amount according to the distance from the current position to the destination.

The processor 150 may calculate a required charge amount of the battery based on the destination information of the electric vehicle inputted through the input unit 110 and according to the current position, for example, the travel distance from the first charging station to the destination. In this case, it is assumed that the battery requires a fourth charge amount to safely reach the destination without discharging the battery.

Also, the storage unit 130 may store information on the required charge amount according to the travel distance in the form of a first lookup table. The processor 150 refers to the first lookup table of the storage unit 130, It is possible to read the information on the required amount of charge.

The fourth step is a charging time determination step according to the degree of charging.

Information on the charging time according to the degree of charge previously stored in the storage unit 130 may be stored in the form of a second lookup table.

The processor 150 may refer to the second lookup table to check the charge amount of the current battery having the first charge amount and the charge time required to raise the second charge amount. In this case, the processor 150 may read information indicating that a first time is required through the second lookup table. Also, the processor 150 may refer to the charging time second lookup table according to the degree of charge stored in the storage unit 130 to check the charging amount of the current battery having the first charging amount, the charging time required for increasing the third charging amount have. In this case, the processor 150 may read information indicating that a second time is required through the second lookup table. Also, the processor 150 can refer to the charging time second lookup table according to the charging degree previously stored in the storage unit 130 to check the charging amount of the current battery having the first charging amount, the charging time necessary for raising the fourth charging amount have. In this case, the processor 150 can read information indicating that a third time is required through the second lookup table.

The third charge amount is a charge amount higher than the second charge amount, and the second and third charge amounts refer to a charge amount between the first charge amount and the fourth charge amount. Also, the processor 150 determines that the amount of charge required to reach the destination is the fourth charge amount. Therefore, when referring to the second lookup table, the processor 150 determines whether the first charge amount, which is the current charge amount, Time information (including time information according to the fourth charging amount) depending on the charging amount can be referred to. However, the present invention is not limited to this, and the time information (including the time information before the buffering) corresponding to the charge amount corresponding to the range between the fourth charge amount and the full charge on the second lookup table of the processor storage unit 130 You can also refer to it. However, in consideration of the second lookup table reference time and information processing time of the storage unit 130 of the processor 150, only the time information according to the charge amount corresponding to the range between the first charge amount and the fourth charge amount can be referred to .

The fifth step is a charging station information display step within a moving distance corresponding to each charged amount.

The storage unit 130 may further store a third lookup table for the movable distance according to each charged amount.

The processor 150 can read the travel distance according to each of the second to fourth charge amounts determined in the fourth step from the storage unit 130 with reference to the third lookup table of the storage unit 130. [

Also, the processor 150 may receive the charging location information of the corresponding distance and the charging charge information of the corresponding charging location received from the communication unit 160, and may determine whether the charging station is located within the moving distance corresponding to each of the second to fourth charging amounts .

Since the user selects the time saving mode, the processor 150 determines whether there is a charging station located within the movable distance and a movable distance corresponding to the second charging amount with the fastest charging time. If the charging station does not exist , It is possible to determine whether or not there is a movable distance according to the third charged amount and a charging station located within the movable distance.

According to the example, since the second and third charging stations are located within the movable distance according to the second charging amount, the charging cost (charge) of each of the second and third charging stations, together with the position information of each of the second and third charging stations, Information can be outputted through the display unit 140. [

Accordingly, the user can visit the charging station of any one of the second or third charging stations to again charge the battery. In this case, the above-described operation can be repeated. The second and third charging amounts and the corresponding charging time take into account the time for the electric vehicle to enter the charging station and the time for leaving the charging station after charging, that is, other times for charging except for the actual charging time of the battery Based on statistical results. Thus, it is possible to solve the problem that, depending on the repeated charging, the wasted time for the other time required for charging rather becomes rather large.

On the other hand, if the user selects 2) cost saving mode, in the first step, the processor 150 receives a mode selection command from the user through the input unit 110, and proceeds to the next step.

In the second step, when the processor 150 receives the 1) cost saving mode selection command from the user through the input unit 110, the remaining battery charge amount can be confirmed through the battery remaining amount detection unit 120. [ In this case, the charge amount of the battery at present can be the first charge amount.

In a third step, the processor 150 may calculate the required amount of battery charge according to the current location, e.g., the distance traveled from the first charging station to the destination. In this case, it is assumed that the battery requires a fourth charge amount to safely reach the destination without discharging the battery.

Also, the processor 150 can read information on the required charge amount according to the travel distance with reference to the first look-up table of the storage unit 130. [

In the fourth step, the processor 150 can refer to the second look-up table of the storage unit 130 to check the charge amount of the current battery having the first charge amount, the charge time required to raise the second charge amount. In this case, the processor 150 may read information indicating that a first time is required through the second lookup table. Also, the third and fourth charge amounts can be read in time information necessary for charging in the above-described manner.

In the fifth step, the processor 150 reads the movement distance according to each of the second to fourth charge amounts determined in the fourth step from the storage unit 130 with reference to the third lookup table of the storage unit 130 .

Also, the processor 150 may receive the charging location information of the corresponding distance and the charging charge information of the corresponding charging location received from the communication unit 160, and may determine whether the charging station is located within the moving distance corresponding to each of the second to fourth charging amounts .

Since the user has selected the cost saving mode, the processor 150 displays the location information and the price information of the lowest cost charging station on the basis of the charging cost information of the charging stations located within the movable distance according to the respective charging amounts, ). ≪ / RTI >

In this case, the processor 150 calculates the difference between the charging time according to the second charging amount and the charging time according to the third charging amount, the charging time according to the third charging amount, It is possible to consider both the difference time of the charging time and the allowable charging time information. Specifically, for example, when the allowable charging time is 1 hour, the charging time according to the second charging amount is 10 minutes, the charging time according to the third charging amount is 30 minutes, and the charging time according to the fourth charging amount is 1 hour and 10 minutes The position information of the charging station within the movable distance corresponding to each of the second charging amount and the third charging amount requiring the charging time within one hour which is the allowable charging time is compared with the cost information of each charging station, (140). ≪ / RTI >

The allowable charging time can be input by the user through the input unit 110 and can be preset in the appropriate time when the product of the display device 100 is manufactured and stored in the storage unit 130, .

Through the above-described method, the user can visit the charging station displayed through the display unit 140 and proceed to charge the battery again. In this case, the above-described operation can be resumed.

On the other hand, when the electric vehicle enters the highway, when the processor 150 confirms that the electric vehicle is located on the highway through the GPS information, information about the charging station within the movable distance according to the charged amount is displayed on the display unit 140 When displaying, by excluding the charging station list located in the area other than the highway such as the national highway in addition to the charging station located on the highway up to the final toll gate reaching the inputted destination, the user can provide substantially useful charging station information.

8 is a graph showing the charging rate according to the charged amount.

Referring to FIG. 8, as the charged amount of the battery increases due to the increase of the resistance of the battery due to the increase of the charged amount of the battery, the charging speed of the battery decreases. Also, considering the stability of the battery, the amount of current applied to the battery is reduced according to the amount of the charged battery. Therefore, when the charged amount of the battery is increased, the charging time increases at a rate higher than the amount of the charged amount. Therefore, when the battery is charged with the required amount of charge to reach the destination at one time, the inefficiency of the charging time is greatly increased. Accordingly, in consideration of the charging time according to the charging amount, charging the battery to an appropriate level in consideration of the charging time and further charging the battery before reaching the destination can reduce the entire charging time.

As described above, in the embodiment of the present invention, it is possible to reduce the battery charging time by guiding at least one battery to be charged before reaching the destination from the starting point so as to reduce the total charging time, So that the vehicle can be safely operated. In addition, the charging cost of each charging station is also taken into consideration, thereby reducing the charging cost. As described above, according to the present invention, the navigation apparatus 100 can be operated by the display unit 140 through the steps as described above. You can display the acceptance and rejection icons for recommendation information. When the user clicks the recommendation information use acceptance, the processor 150 of the navigation apparatus 100 senses the click of the recommendation information use acceptance icon of the user via the input unit 110, and based on the GPS information, If it is detected that the car is fixed within the charging station for a predetermined period of time, information on the remaining battery charge of the current electric vehicle according to the recommendation information and information on the remaining time can be transmitted to the battery charging apparatus 100.

The recommendation information relates to the information on the proper charging amount and the next charging station based on the time saving mode or the cost saving mode through the display unit 140 of the navigation device 100. When the user clicks the recommendation information use acceptance, It is assumed that the user agrees with the information provided by the navigation device 100 and the user is assumed to charge the battery of the electric vehicle in response to the charging amount of the electric vehicle battery actually recommended by the charging station.

The reason why the processor 150 of the navigation device 100 detects that the electric vehicle is fixed within the charging station for a predetermined time based on the GPS information is that the user is informing that the user is charging the battery of the electric vehicle This is for automatic detection without a separate signal.

Meanwhile, since the user can use a rest area while charging the battery of the electric vehicle, information on the battery charge amount of the electric vehicle and the remaining time required for charging according to the recommendation information is transmitted to the wearable device 300, So that it can be displayed on the display unit 300.

The information on the amount of charge of the battery of the electric vehicle and the remaining time to meet the charge amount may be actual information obtained by sensing the battery state of the actual electric vehicle through the battery remaining amount detecting unit 120. [ However, the present invention is not limited to this, and may be approximate information that estimates the amount of charge according to the actual time, based on the recommended amount of charge and the time information required for the battery. The user can confirm the battery charging state of the electric vehicle at present by checking the information transmitted from the navigation device 100 to the wearable device 300. [

In addition, when the electric vehicle is turned off to charge the battery of the electric vehicle, the navigation device 100 can turn off the backlight of the display unit 140 and turn on the other components So that continuous communication with the wearable device 300 can be made possible.

The control method of the navigation apparatus according to the above-described various embodiments may be implemented by a program and stored in various recording media. That is, a computer program, which is processed by various processors and can execute the various control methods described above, may be stored in the recording medium.

For example, the method may include receiving destination information from a user, measuring a remaining battery level of the electric vehicle, calculating whether the vehicle can travel from the current location to the destination based on the measured battery remaining amount, A program for performing a step of preferentially giving a route to the nearest point of the present location among the respective points of the charging station visited by the electric vehicle on the basis of the history of the charging of the preliminarily stored electric vehicle, A non-transitory computer readable medium may be provided.

A non-transitory readable medium is a medium that stores data for a short period of time, such as a register, cache, memory, etc., but semi-permanently stores data and is readable by the apparatus. In particular, the various applications or programs described above may be stored on non-volatile readable media such as CD, DVD, hard disk, Blu-ray disk, USB, memory card, ROM,

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limiting the scope of the invention as defined by the appended claims. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

100: navigation device 110: input unit
120: Battery remaining amount detection unit 130:
140: display unit 150: processor
160: communication unit 300: wearable device
310: Communication section of the wearable device
320: Display device of wearable device

Claims (12)

delete delete An input unit for receiving destination information from a user;
A remaining battery level detector for measuring a remaining battery level of the electric vehicle;
A storage unit for storing a history of charging the electric vehicle;
A display unit for displaying the inputted destination information and charging station information; And
Wherein the control unit determines whether or not the vehicle can travel from a current position to a destination on the basis of information on a remaining battery level measured by the battery remaining amount detecting unit and, when the vehicle can not travel to the destination, And a processor for controlling the display unit to preferentially guide the route to the first recharging station of the closest point from the current position among the points of the recharging station that has been visited most frequently,
Further comprising a communication unit for communicating with a server that provides information on the location of the charging station and the charging cost of each charging station,
Wherein,
Information on the required charge amount necessary for moving step by step to a predetermined movement distance is stored in the form of a first lookup table and information on the charge time for charging in a stepwise manner from the initial charge amount to the predetermined charge amount is stored in the form of a second lookup table Stores a third lookup table for information on movable positions by consuming the charge amount in each step,
The processor comprising:
Saving mode and a cost saving mode through the display unit when the destination is inputted and it is confirmed that the electric vehicle arrives at the first charging station that has been announced after the departure of the electric vehicle,
When receiving an execution input for the time saving mode through the input unit,
The battery remaining amount detecting unit determines that the remaining amount of the battery is the first charging amount,
Calculating a necessary charge amount necessary for moving stepwise from a position of the first charging station to a predetermined moving distance with reference to a first lookup table of the storage unit,
Calculating a charge time for charging from the first charge amount to the calculated required charge amount for each step with reference to a second lookup table of the storage unit,
A third lookup table of the storage unit is used to determine a moveable stepwise movement position by consuming the required amount of charge for each step,
A chargeable charging station disposed between the stepwise movement positions based on charging station position information received from the communication unit and charging charge information of the charging station,
A charging time for charging up to the required amount of charge for each of the above-mentioned steps, whether or not a chargeable charging station arranged between the above-mentioned positions is arranged, a time for entering the charging station and a time for leaving the charging station after charging, The second charge amount at which the charge time is minimum is determined,
Saving mode, the control unit controls the display unit to output the position of the charging station disposed between the movable position movable to the second charging amount and the charging cost information of the charging station,
When receiving an execution input for the cost saving mode through the input unit,
The battery remaining amount detecting unit determines that the remaining amount of the battery is the first charging amount,
Calculating a necessary charge amount necessary for moving stepwise from a position of the first charging station to a predetermined moving distance with reference to a first lookup table of the storage unit,
Calculating a charge time for charging from the first charge amount to the calculated required charge amount for each step with reference to a second lookup table of the storage unit,
A third lookup table of the storage unit is used to determine a moveable stepwise movement position by consuming the required amount of charge for each step,
Detecting charging stations disposed between the stepwise movement positions based on the charging station position information received from the communication unit and the charging cost information of the charging station,
Determines a second charging station which requires the least total charging cost based on the charging cost information of each of the charging stations disposed between the stepwise moving positions,
Saving mode by controlling the position of the second charging station and the charging cost information of the second charging station through the display unit,
The processor comprising:
Wherein the second charging station is determined so that the total charging time falls within the allowable charging time if there is an allowable charging time at the time of executing the cost saving mode
Navigation device. The method of claim 3,
The processor comprising:
And controls the display unit to guide the route to the point at which the charging cost is lowest among the points of the charging station most visited by the electric vehicle based on the information on the charging cost received from the server through the communication unit
Navigation device. 5. The method of claim 4,
The server comprises:
Provide more information on the current status of all charging stations across the country,
The processor comprising:
And controls the display unit to guide a route to a point at an order other than a point not currently operating among the points to be guided based on information on whether or not the operation is received through the communication unit. The method of claim 3,
The processor comprising:
And displays message information indicating that the vehicle can travel to the destination in a current battery amount when it is determined that the vehicle can travel to the destination. The method of claim 3,
And a GPS receiver for receiving the GPS signal from at least one GPS satellite and transmitting the GPS signal to the processor,
The processor comprising:
And guides the route to the destination and the charging station on a map based on the received GPS signal. A method of controlling a navigation device,
Receiving destination information from a user;
Measuring a remaining battery level of the electric vehicle;
Calculating whether the vehicle can travel from a current position to a destination based on the measured information on the remaining battery level;
If it is not possible to travel to the destination, guiding the route to the closest point of the current location among the respective points of the charging station most frequently visited by the electric vehicle on the basis of the history of the charging of the previously stored electric vehicle ;
Receiving information on the location of the charging station from the server and the charging cost of each charging station;
Information on the required charge amount according to the stepwise travel distance is stored in the form of a first look-up table, information on the charge time for charging from the initial charge amount to the predetermined charge amount is stored in the form of a second lookup table, Storing a third lookup table with information on movable positions according to the first lookup table; And
And providing the user to select one of a time saving mode and a cost saving mode upon confirming that the destination arrives at the first charging station that has been announced after the departure of the electric vehicle,
When the time saving mode is executed,
Confirming that the remaining amount of the battery is the first charged amount;
Calculating a necessary charge amount for moving from a position of the first charging station to a moving distance of the step between the destination with reference to the first lookup table;
Calculating a charge time for charging from the first charge amount to the calculated required charge amount for each step with reference to the second lookup table;
Determining a shift position for each step by consuming the required amount of charge for each step by referring to the third lookup table, and determining a shift position for each step between the stepwise movement positions, based on the charging station position information received from the server and the charging cost information of the charging station Detecting disposed rechargeable charging stations;
A step of determining whether or not the charging time required for charging each of the steps to the required charge amount, the placement of the chargeable charging station disposed between the stepwise positions, the time of entering the charging station and the time of leaving the charging station after charging, Determining a second charge amount at which a total charge time for moving to a destination is minimized; And
Further comprising: guiding the position of the rechargeable charging station disposed between the movable position movable to the second charging amount and the charging cost information of the charging station,
When the cost saving mode is executed,
Confirming that the remaining amount of the battery is the first charged amount;
Calculating a necessary charge amount for moving from a position of the first charging station to a moving distance of the step between the destination with reference to the first lookup table;
Calculating a charge time for charging from the first charge amount to the calculated required charge amount for each step with reference to the second lookup table;
Determining a shift position for each step by consuming the required amount of charge for each step by referring to the third lookup table, and determining a shift position for each step between the stepwise movement positions, based on the charging station position information received from the server and the charging cost information of the charging station Detecting disposed rechargeable charging stations;
Determining a second charging station that is least costly based on the charging cost information of each of the chargeable charging stations disposed between the stepwise moving positions; And
Further comprising the step of guiding the position of the second charging station and the charging cost information,
And determining the second charging station so that the total charging time falls within the allowable charging time if the allowable charging time is set in the execution of the cost saving mode
A method of controlling a navigation device. 9. The method of claim 8,
Wherein the step of guiding comprises:
And guiding a route to the point where the charging charge is lowest among the points of the charging station most visited by the electric vehicle based on information on the received charging cost. 10. The method of claim 9,
Wherein the receiving comprises:
Further receiving, from the server, information on whether all the charging stations in the nation are currently operating,
Wherein the step of guiding comprises:
And guiding a route to a point at an order other than a point not currently operating among the points to be guided, based on the information on the received sales. 9. The method of claim 8,
Wherein the step of guiding comprises:
And displaying message information indicating that the vehicle can travel to the destination in the current battery amount when it is determined that the vehicle can travel to the destination. 9. The method of claim 8,
Further comprising receiving GPS signals from at least one GPS satellite,
Wherein the step of guiding comprises:
And guiding the route to the destination and the charging station on a map based on the received GPS signal.

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