KR20070028030A - Method for receiving data in navigation apparatus and navigation apparatus thereof - Google Patents

Abstract

A navigation device and a data receiving method thereof are provided to effectively update map data without accessing to an update server by receiving POI(Position Of Interest) data from peripheral objects. A navigation device includes a memory(25), an RF(Radio Frequency) unit(27), a GPS receiver(22), and a controller(24). The memory stores configuration information for requesting interest data. The RF unit receives the interest data from a coordinator through a DSRC(Dedicated Short Range Communication) scheme. The GPS receiver receives position and speed information from a GPS(Global Positioning System) satellite. The controller calculates a propagation direction based on the position and speed information from the GPS receiver and determines whether to receive the interest data according to the amount of the interest data corresponding to the configuration information stored in the memory.

Description

Method for receiving data in a navigation device and a navigation device thereof

1 is an overall block diagram illustrating a navigation device having a data receiving function according to a vehicle speed and a data capacity according to an embodiment of the present invention.

FIG. 2 is a block diagram illustrating a navigation device mounted on the vehicle of FIG. 1. FIG.

3 is a block diagram for explaining in detail the control unit of FIG.

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

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

10: GPS satellite 20: navigation device

30: feature 40: coordinator

The present invention relates to a method for receiving data in a navigation device and a navigation device thereof, and more particularly, to receive interest data corresponding to setting information set based on a vehicle speed and a driving direction of a driving vehicle through a near field communication method. A method for receiving data in a navigation device and a navigation device thereof.

In general, a navigation device may provide a user with various types of information to help driving, such as informing a user of the current location of a vehicle, providing an optimal route to a desired destination, and guiding a driver according to the route. Device.

Of these, the most basic function is navigation technology that accurately determines the current position of the vehicle. Typically, GPS (global positioning system) and DR (dead reckoning) methods are used to measure the current position of the vehicle in the vehicle navigation system.

GPS (Global Positioning System) is a global positioning system using 24 satellites that operate at an altitude of about 20,183 km.It receives radio waves from satellites that know the exact position and observes the time required for the observation points. Satellite navigation system to get the location. Accordingly, the position measuring apparatus using the GPS can know the position (x, y, z) and the time (t) of the mobile body (for example, the vehicle) equipped with the GPS receiver.

The DR (Dead Reckoning) method is a navigation technology that can find out the magnetic position and direction of travel without external help using an inertial sensor. In this way, the inertial sensor (also called DR sensor) used in the DR method includes a sensor for measuring a mileage (for example, a speedometer, a odometer, an accelerometer, etc.) and a sensor for measuring a rotation angle (for example, a geomagnetic sensor and a gyro). Etc.).

Such a navigation device not only corrects a signal received from a GPS through a DR method, but also corrects information on a current location and displays it on an electronic map when GPS data is not received.

However, when the navigation device receives various kinds of data transmitted during wireless communication, unnecessary data is also received by the driver and stored in the memory, thereby preventing the navigation device from efficiently using the memory.

In addition, the navigation device needs to download and update the desired geographic information through connection with a server that provides the updated geographic information when the geographic information is required to be updated, or purchase and install a recording medium on which the updated geographic information is recorded. There is a problem in that a communication fee or a purchase cost, time, and effort of a recording medium according to a communication connection must be wasted.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems, and is to enable the driver to easily and conveniently obtain interest data required by a driver through a short range wireless communication method.

A navigation device according to an embodiment of the present invention for achieving the above object includes a memory for storing setting information for setting a request of interest data that you want to receive from any interest data, and a coordinator for providing the interest data ( Using the RF unit for receiving arbitrary interest data from the coordinator through a short range wireless communication method, a GPS receiver for receiving location information and speed information from a GPS satellite, and the position information and speed information received by the GPS receiver. And a controller configured to determine whether to receive the data based on the capacity of the interest data corresponding to the setting information stored in the memory, from among the interest data provided from the coordinator using the calculated vehicle speed and the progress direction calculated through communication with the coordinator. It is characterized by.

Preferably, the control unit receives a setting information for requesting the request of interest data to be received from the coordinator, a setting unit for storing the received setting information in the memory, the position information and the speed information received by the GPS receiver A vehicle speed calculation unit that calculates a vehicle speed based on the control unit, a travel direction calculation unit that calculates a travel direction of the vehicle through communication with the coordinator, and the setting set by the calculated vehicle speed, travel direction, and the setting unit And a reception data determiner configured to determine a capacity of the interest data corresponding to the setting information among the interest data provided from the coordinator based on the information and determine whether to receive the corresponding interest data.

More preferably, when the reception data determination unit is in the short range wireless communication section with the coordinator, a reception data processing unit for receiving corresponding interest data from the coordinator through the RF unit, and setting information stored in the memory by the reception data processing unit. The method may further include an interest data processor configured to store the received interest data in a memory when receiving the interest data corresponding to the corresponding interest data.

The reception data determination unit may further include a communication blocker that blocks communication with the coordinator when receiving the interest data corresponding to the setting information stored in the memory by the reception data processor.

Even more preferably, the short range wireless communication method adopts any one of the IEEE802.15.4 method, the Bluetooth method, the Infrared Data Association (IRDA) method, and the RF (Radio Frequency) method.

In addition, the data receiving method in the navigation device according to an embodiment of the present invention, in the data receiving method in the vehicle-mounted navigation device, the setting information for requesting the interest data that you want to receive from any interest data Data of interest provided from the coordinator using the first step of receiving input and the direction of travel calculated through communication with the coordinator in the vehicle speed and the short-range wireless communication section calculated using the position information and the speed information received from the GPS satellites. And a second step of determining whether to receive based on the capacity of the interest data corresponding to the setting information received by the first step.

Preferably, the second step is a vehicle speed calculation step of calculating the speed of the vehicle based on the positional information and the speed information received from the GPS satellites, and a traveling direction of calculating the traveling direction of the vehicle through communication with the coordinator. Based on the calculation step, the calculated vehicle speed, direction of travel, and the setting information set by the first step, the volume of interest data corresponding to the setting information is grasped from the interest data provided from the coordinator to receive the corresponding interest data. Characterized in that it comprises the step of determining the received data to determine.

More preferably, the receiving data determining step may include receiving data of interest from the coordinator and setting information stored in the memory by the receiving data processing step when the coordinator is in a short range wireless communication period. When receiving the corresponding interest data, characterized in that it comprises an interest data processing step of storing the received interest data in the memory.

The reception data determining step may further include a communication blocking step of blocking communication with the coordinator when receiving the interest data corresponding to the setting information stored in the memory by the reception data processing step. It is done.

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

A navigation apparatus having a data reception function according to vehicle speed and data capacity according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3.

FIG. 1 is an overall block diagram illustrating a navigation device having a data receiving function according to a vehicle speed and data capacity according to an embodiment of the present invention, and FIG. 2 is a block diagram illustrating a navigation device mounted on the vehicle of FIG. 1. FIG. 3 is a block diagram for describing the control unit of FIG. 2 in detail.

Referring to FIG. 1, a navigation device 20 having a data reception function according to a vehicle speed and a data capacity according to the present invention uses a navigation function using location information and speed information received from at least one GPS satellite 10. And interest data to be received from among the speed of the driving vehicle (hereinafter referred to as 'vehicle speed'), the direction of travel to the coordinator 40 providing the interest data, and the interest data transmitted from the coordinator 40. It is determined whether to receive the data of interest according to the capacity of the.

At this time, the coordinator 40 is mounted on the feature (for example, building, gas station, toll gate, parking lot, etc.) 30, the information of the feature 30 (for example, POI information), MP3 file, Stores data of interest, including text, images, and the like. Accordingly, when the vehicle equipped with the navigation device 20 enters the short-range wireless communication section with the coordinator 40 while driving, the user may be interested in the interest data provided by the coordinator 40 according to the vehicle speed, the direction of travel, and the capacity of the interest data. It determines whether to receive the data of interest that are needed and, if possible, receives the data of interest.

Here, the point of interest (POI) information includes the location name and coordinates of the important point, the location name of the important point refers to public institutions, schools, department stores, cathedrals, parks, fast food restaurants, markets, restaurants. In the present embodiment, the POI information is limited to the location name of the important point, but the present invention is not limited thereto.

In the present embodiment, the navigation device 20 having a data receiving function according to the vehicle speed and data capacity described above is described as being mounted on a vehicle, but the present invention is not limited thereto. (E.g., a mobile phone, a portable navigation dedicated terminal, etc.).

The navigation device 20 receives the current position information and the speed information of the vehicle from the GPS satellite 10 to perform communication with the coordinator 40 that provides the interest data while basically performing the navigation function displayed on the driving route. Optionally receive interest data that the driver needs. At this time, the driver receives the setting information (eg, text, MP3, image, etc.) of the interest data that the driver wants to receive from the coordinator 40 before driving, and receives the interest data corresponding to the received setting information. Is received through a short range wireless communication method.

In the present embodiment, the near field communication method may adopt any one of the IEEE802.15.4 method, the Bluetooth method, the Infrared Data Association (IRDA) method, and the RF (Radio Frequency) method, but adopts ZigBee, which is IEEE802.15.4b. This is preferred.

Referring to FIG. 2, a navigation device 20 having a data reception function according to a vehicle speed and a data amount according to an embodiment of the present invention includes a key input unit 21, a GPS receiver 22, and a data converter 23. And a control unit 24, a memory 25, a display unit 26, an RF unit 27, an antenna (not shown), and the like.

Here, the memory 25 stores geographic information required to perform a navigation function, at least one interest data, and setting information set to request reception of interest data required by the driver.

In addition, the memory 25 stores an operation program and a system program of the control unit 24. The operation program and the system program are usually stored in a ROM area included therein and can be erased as necessary. Electrically erasable ROMs include EEPROM and flash memory. The memory 25 also includes a RAM for temporarily storing data generated during execution of various operation programs.

The control unit 24 controls the overall operation of the navigation device 20 and at the same time calculates the vehicle speed and the coordinator 40 calculated by the preset setting information, information received from the GPS satellite 10 before driving. Based on the proceeding direction, the capacity of interest data corresponding to preset information is determined from the interest data provided by the coordinator 40 in the short range wireless communication section, and the reception of the interest data is determined according to the determination. The interest data is received. Then, control of various components provided is performed.

The key input unit 21 inputs a command for searching the geography of a specific position (for example, the current position of the vehicle, an arbitrary point, a position on the driving route, etc.) by operating a button key provided in the navigation device 20. Receive.

In the present exemplary embodiment, the key input unit 21 is limited to a button key. However, the present invention is not limited thereto, and the key input unit 21 may be implemented as a touch panel, a light pen, a remote control device, or the like that inputs a command by touching a key or a menu displayed on the screen. Do.

In addition, the key input unit 21 receives a command required for setting so that the driver can receive the desired interest data among the interest data transmitted from the coordinator 40 through the near field communication while driving.

In the present embodiment, it is described that the command is input through the key input unit 21. However, the present invention is not limited thereto, and a command for searching for a specific position or a command required for setting interest data may be input by a driver. .

When the GPS receiver 22 transmits the position measurement signal to the GPS satellite 10, the position information and the speed of the location where the vehicle on which the navigation device 20 is mounted are located from at least one GPS satellite 10 receiving the transmitted signal. Receive information. At this time, the navigation device 20 receiving the location information and the speed information displays the POI information and the geographic information corresponding to the GPS coordinates on the screen so that the current location of the driver can be confirmed.

The data converting section 23 converts information received from the outside or information requiring processing into suitable data. In particular, the data converter 23 converts the data of interest received from the coordinator 40 into suitable data through a near field communication method.

The RF unit 27 and the antenna (not shown) are under the control of the control unit 24, and generally perform a role of receiving data of interest from the coordinator 40, and thus a detailed description thereof will be omitted. In addition, the RF unit 27 converts the radio signal received through the antenna into a desired signal and outputs it.

The display unit 26 outputs information on the screen according to the control signal output through the control unit 24. In the present embodiment, the operation guidance, the operation menu, the display of the operation keys, the display of the route up to the guidance point set according to the driver's request, the guidance diagram according to the driving route, etc. are displayed on the screen. In particular, the interest data received through the near field communication method is reflected and displayed on the screen.

Referring to FIG. 3, the control unit 24 will be described in more detail. The control unit 24 includes a navigation performing unit 24a, a setting unit 24b, a vehicle speed calculating unit 24c, and a traveling direction calculating unit ( 24d), received data determination unit 24e, and the like.

The navigation performing unit 24a performs various arithmetic processing such as navigation processing based on the information input through the key input unit 21, and outputs the result on the screen. That is, the navigation performing unit 24a searches for a route from the current position received from the GPS satellite 10 to the destination, and guides driving to the searched route.

The setting unit 24b receives the setting information for requesting the interest data to be received from the coordinator 40 providing the interest data when the short distance wireless communication section is entered and stores the received setting information in the memory 25. At this time, it is preferable to receive setting information necessary for setting the interest data to be received before driving by operating the key input unit 21.

The vehicle speed calculator 24c calculates the vehicle speed by using the location information and the speed information received from the GPS satellites 10.

In the present exemplary embodiment, the vehicle speed is calculated using the information received from the GPS satellite 10. However, the present invention is not limited thereto, and various sensors mounted on the vehicle to calculate the vehicle speed (for example, Such as a vehicle speed sensor).

The advancing direction calculation unit 24d calculates the advancing direction of the vehicle through communication with the corresponding coordinator 40 when entering a short-range communication section capable of performing communication with the coordinator 40.

Similarly, the present embodiment is described as calculating the moving direction through communication with the coordinator 40, but the present invention is not limited to this, and various sensors mounted on the vehicle to calculate the moving direction of the vehicle (for example, Such as a gyro sensor).

The received data determination unit 24e receives the interest provided from the coordinator 40 when entering the short-range wireless communication section based on the vehicle speed and the driving direction calculated by the vehicle speed calculating unit 24c and the traveling direction calculating unit 24d. From the data, the capacity of the interest data corresponding to the setting information set by the setting unit 24b is determined to determine whether to receive the interest data to be received.

For example, the memory 25 of the data of interest provided from the coordinator 40 based on the speed calculated using the information received from the GPS satellite 10 and the traveling direction calculated through the communication with the coordinator 40. If the capacity of the interest data (for example, POI information) corresponding to the setting information set in FIG. 5 is determined to be 500 KB, the distance between the vehicle and the coordinator is predicted to determine whether the interest data is received. At this time, if the interest data is a non-text image or an MP3 file, the capacity is large, and thus a notification message is provided to reduce the vehicle speed so as to receive the interest data, and thus the desired interest through the short range wireless communication with the coordinator 40. It can also be implemented to receive data.

The reception data determination unit 24e includes a reception data processing unit 24f, a communication interruption unit 24g, an interest data processing unit 24h, and the like.

When the reception data processor 24f enters the short range wireless communication section, the received data processor 24f grasps the capacity of the interest data corresponding to the setting information stored in the memory 25 among the interest data provided by the coordinator 40. That is, the reception data processor 24f determines whether the capacity of the interest data provided by the coordinator 40 is the interest data that can be received within the short range wireless communication section based on the vehicle speed and the moving direction.

In addition, the reception data processor 24f receives the interest data when it is determined that the capacity of the interest data can be received from the interest data provided by the coordinator 40. In this case, the reception data processor 24f may predict in advance the time of departure from the short-range wireless communication interval according to the signal-to-noise ratio (SNR) included in the interest data received by the RF 27. .

When the communication blocker 24g receives the corresponding data of interest by the reception data processor 24f, the communication blocker 24g blocks communication with the corresponding coordinator 40 even if the navigation device 20 located in the short range wireless communication section. .

The interest data processor 24h stores the corresponding interest data received by the RF unit 27 in the memory 25.

In addition, when the interest data processor 24h is requested to execute the interest data received from the driver, the interest data processor 24h also executes the requested interest data. In this case, when the received interest data is POI information, the received interest data is reflected on the corresponding part of the geographic information displayed on the screen, and when the received interest data is an MP3 file, the corresponding music is output through the speaker, and the received interest If the data is an image file, the data is reflected in the corresponding part of the geographic information displayed on the screen. If the received interest data is the text, the data is reflected in the corresponding part of the geographic information displayed on the screen.

4 is a flowchart illustrating a method of receiving data in a navigation device according to another embodiment of the present invention.

Referring to FIG. 4, a method of receiving data in the navigation device applied to FIGS. 2 and 3 is as follows.

The controller 24 is in a state in which the setting information of the interest data desired to be received is stored in advance in the memory 25 (S101). In this case, the memory 25 stores at least one interest data and various geographic information necessary for performing a navigation function.

Next, the navigation performing unit 24a of the control unit 24 receives the location information and the speed information of the current vehicle from the GPS satellite 10 (S103).

Next, the vehicle speed calculator 24c of the controller 24 calculates the speed of the vehicle using the received position information and the speed information (S105).

Next, the controller 24 determines whether to communicate with the coordinator 40 that provides the interest data through the near field communication method (S107.)

As a result of the determination in step S107, if communication with the coordinator 40 is not performed, the standby state is maintained for a predetermined time.

As a result of the determination in step S107, when performing communication with the coordinator 40, the moving direction determination unit 24d of the control unit 24 calculates the moving direction through communication with the coordinator 40 (S109).

Next, the received data determiner 24e of the controller 24 receives the received data according to the capacity of the interest data corresponding to the preset setting information among the interest data provided by the coordinator 40 based on the calculated speed and the moving direction. Determine (S111).

In this case, the preset setting information refers to the setting information stored in the memory 25. The setting information is input to the memory through the key input unit 21 to receive the setting information necessary for setting the interest data to be received before driving. 25). Such setting information should be set before the above-described step S107.

Next, the reception data processing unit 24f of the reception data determination unit 24e determines whether the corresponding interest data can be received according to the capacity of the interest data (S113).

As a result of the determination in step S113, when the capacity of the interest data is large and reception of the interest data is impossible, the process ends.

As a result of the determination in step S113, when the interest data can be received, the interest data processor 24h of the received data determiner 24e stores the interest data received through the short-range wireless communication scheme with the coordinator 40. ).

Thereafter, the communication blocker 24g of the reception data determiner 24e blocks communication with the coordinator 40 even if the navigation device 20 is located within the short range wireless communication section.

By doing so, not only the interest data required by the driver can be easily and conveniently acquired, but also the required interest data can be stored in the memory to efficiently manage the memory.

The present invention is not limited to the embodiments described above, and various modifications and changes can be made by those skilled in the art, which are included in the spirit and scope of the present invention as defined in the appended claims.

According to the present invention as described above, when the coordinator providing the interest data and the short-range wireless communication section enter, there is an effect that the driver can easily and conveniently obtain the interest data required by the driver.

In addition, according to the present invention as described above, even if the geographic information needs to be updated, a separate communication fee and time by receiving interest data through a short-range wireless communication method in a running feature without being connected to a server providing the geographic information. And reduced waste of effort.

In addition, according to the present invention as described above there is also an effect that can efficiently use the memory by selectively receiving the interest data required by the user from the interest data provided by the coordinator and stored in the memory.

Claims (9)

A memory for storing setting information for setting a request for interest data that is desired to be received among arbitrary interest data; An RF unit for receiving arbitrary interest data from a coordinator providing the interest data through a short range wireless communication method; A GPS receiver for receiving location information and speed information from a GPS satellite; Corresponding to the setting information stored in the memory, among interest data provided from the coordinator using the vehicle speed calculated using the position information and the speed information received by the GPS receiver and the direction of travel calculated through communication with the coordinator. And a controller for determining whether to receive the data according to the capacity of the data of interest. The method of claim 1, wherein the control unit A setting unit which receives setting information for requesting interest data to be received from the coordinator and stores the received setting information in a memory; A vehicle speed calculator configured to calculate a vehicle speed based on the position information and the speed information received by the GPS receiver; A traveling direction calculator configured to calculate a traveling direction of the vehicle through communication with the coordinator; Receive data for determining whether to receive the interest data by grasping the capacity of the interest data corresponding to the setting information among the interest data provided from the coordinator based on the calculated vehicle speed, the driving direction, and the setting information set by the setting unit. Navigation apparatus comprising a determination unit. The method of claim 2, wherein the received data determination unit A reception data processor configured to receive corresponding interest data from the coordinator through the RF unit when the coordinator is in a short range wireless communication section; And a interested data processor configured to store the received interested data in a memory when the interested data corresponding to the setting information stored in the memory is received by the received data processor. The method of claim 3, wherein the received data determination unit And a communication blocker which blocks communication with the coordinator when the interest data corresponding to the setting information stored in the memory is received by the reception data processor. The method of claim 1, wherein the short range wireless communication scheme A navigation device comprising any one of the IEEE802.15.4 method, the Bluetooth method, the Infrared Data Association (IRDA) method, and the RF (Radio Frequency) method. In a data receiving method in a navigation device mounted on a vehicle, A first step of receiving setting information for requesting interest data from among arbitrary interest data; By the first step of the interest data provided from the coordinator using the heading calculated using the position information and the speed information received from the GPS satellites and the direction of travel calculated through the communication with the coordinator in the short-range wireless communication section And a second step of determining whether to receive based on the capacity of the data of interest corresponding to the input setting information. The method of claim 6, wherein the second step A vehicle speed calculating step of calculating a vehicle speed based on the positional information and the speed information received from the GPS satellites; A traveling direction calculating step of calculating a traveling direction of the vehicle through communication with the coordinator; Receiving to determine whether to receive the interest data by grasping the capacity of the interest data corresponding to the setting information from the interest data provided from the coordinator based on the calculated vehicle speed, driving direction and the setting information set by the first step A data receiving method in a navigation device comprising a data determination step. The method of claim 7, wherein the step of determining the received data A received data processing step of receiving corresponding interest data from the coordinator when the coordinator is in a short range wireless communication section; And an interest data processing step of storing the received interest data in the memory when receiving the interest data corresponding to the setting information stored in the memory by the reception data processing step. The method of claim 8, wherein the step of determining the received data And a communication blocking step of interrupting communication with the coordinator when receiving the interest data corresponding to the setting information stored in the memory by the reception data processing step.

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