阅读说明：本技术 提供连通性导航的方法和使用该方法的导航系统 (Method for providing connectivity navigation and navigation system using the same ) 是由 李黄稙 于 2019-10-17 设计创作，主要内容包括：一种在导航系统中提供与主机单元的连通性导航的方法,包括以下步骤：确定全球定位系统(GPS)信息的接收状态,搜索至少一个通过有线或无线方式连接的设备,从搜索到的设备接收位置传感器信息,确定位置传感器信息的可靠性,并基于所确定的可靠性,选择具有高可靠性的设备的信息作为接收到的信息。另外,执行提供连通性导航的方法的导航系统包括主机单元、车辆控制器、移动终端和远程信息处理服务器。(A method of providing connectivity navigation with a host unit in a navigation system, comprising the steps of: determining a reception state of Global Positioning System (GPS) information, searching for at least one device connected by wire or wireless, receiving location sensor information from the searched device, determining reliability of the location sensor information, and selecting information of a device having high reliability as the received information based on the determined reliability. In addition, a navigation system that performs the method of providing connectivity navigation includes a host unit, a vehicle controller, a mobile terminal, and a telematics server.)

1. A method of providing connectivity navigation with a host unit in a navigation system, the method comprising the steps of:

determining, by the host unit, a reception state of Global Positioning System (GPS) information;

searching, by the host unit, for at least one device connected by a wired or wireless manner;

receiving, by the host unit, location sensor information from each searched device;

determining, by the host unit, reliability of the received position sensor information; and

selecting, by the host unit, information of a device having high reliability among the searched devices as reception information based on the determined reliability.

2. The method of claim 1, further comprising the steps of:

periodically requesting available position sensor information from a vehicle controller by the host unit; and

receiving, by the host unit, position sensor information from the vehicle controller.

3. The method of claim 1, wherein the step of searching for at least one device connected by wire or wirelessly further comprises the steps of: determining, by the host unit, whether to establish a connection with the mobile terminal through at least one of wired communication and short-range communication.

4. The method of claim 3, wherein the step of receiving location sensor information from the searched device comprises the steps of:

requesting, by the host unit, position sensor information from the mobile terminal when establishing a connection with the mobile terminal in a wired or wireless manner; and

receiving, by the host unit, location sensor information from the mobile terminal.

5. The method of claim 3, wherein the step of receiving location sensor information from the searched device comprises the steps of:

requesting, by the host unit, pre-stored location information from a telematics server; and

receiving, by the host unit, location information from the telematics server.

6. The method of claim 1, wherein the location sensor information includes availability, actual location value, and measurement time.

7. The method of claim 6, wherein the step of determining the reliability of the position sensor information comprises the steps of: comparing, by the host unit, an actual position value from the GPS information with the received position sensor information to determine the reliability.

8. The method of claim 7, wherein the step of determining the reliability of the position sensor information comprises the steps of:

checking, by the host unit, availability of the received location sensor information; and

calculating, by the host unit, weights of position sensor information received from available sensors.

9. The method of claim 1, wherein the selecting information of one of the searched devices having high reliability as the reception information based on the determined reliability comprises: selecting, by the host unit, location sensor information of available devices in descending order corresponding to a GPS reception state of at least one of a vehicle and a mobile terminal.

10. The method of claim 1, wherein the method is performed by a computer-readable recording medium having a program recorded thereon.

11. A navigation system for a vehicle, comprising:

a main unit installed inside the vehicle;

a vehicle controller configured to transmit and receive data to and from the host unit through Controller Area Network (CAN) communication;

a mobile terminal configured to transmit and receive data to and from the host unit using at least one of wired communication and short-range communication; and

a telematics server configured to transmit and receive data to and from at least one of the host unit and the mobile terminal through a wireless Internet network,

wherein the host unit determines a reception state of global positioning system GPS information, searches for at least one device connected by wire or wireless, receives location sensor information from the searched devices, determines reliability of the location sensor information, and selects information of a device having high reliability among the searched devices as reception information based on the determined reliability.

12. The navigation system of claim 11, wherein the navigation system,

wherein the host unit periodically requests available position sensor information from the vehicle controller; and

the host unit receives position sensor information from the vehicle controller.

13. The navigation system of claim 11, wherein the host unit determines whether to establish a connection with the mobile terminal through at least one of wired communication and short-range communication.

14. The navigation system according to claim 13, wherein the host unit requests position sensor information from the mobile terminal and receives the position sensor information from the mobile terminal when a connection is established with the mobile terminal by wired or wireless means.

15. The navigation system of claim 13, wherein the host unit:

requesting pre-stored location information from a telematics server; and

location information is received from the telematics server.

16. The navigation system of claim 11, wherein the location sensor information includes availability, actual location value, and measured time.

17. The navigation system of claim 16, wherein the host unit compares the actual location value from the GPS information to the received location sensor information to determine the reliability.

18. The navigation system of claim 17, wherein the host unit:

checking availability of the received location sensor information; and

weights are calculated for the position sensor information received from the available sensors.

19. The navigation system of claim 11, wherein the host unit selects the location sensor information of the available devices in descending order corresponding to a GPS reception status of at least one of the vehicle and the mobile terminal.

Technical Field

The present invention relates to a method of providing connectivity navigation and a navigation system using the same.

Background

The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.

The vehicle navigation apparatus displays the current position of the vehicle on a monitor. The navigation apparatus provides a driver with various navigation information required for traveling, such as a traveling direction of a vehicle, a distance to a destination, a current traveling speed of the vehicle, a route set by the driver before traveling, an optimal route to the destination, and the like

Fig. 1 is a view showing a conventional navigation system.

The conventional connectivity navigation technology of fig. 1 represents that the host 100 transmits information, such as location information and speed information obtained using various sensors of a vehicle, to the mobile terminal 300 through wired/wireless communication, and the mobile terminal processes the information to provide services, such as telephony, music, route guidance, and voice recognition. Services such as navigation, music, and telephony may be shared through the connection between the devices.

However, since the conventional navigation system uses only Global Positioning System (GPS) signals of the vehicle, the current position of the vehicle cannot be obtained in a GPS shadow area, such as an underground parking lot, in which the GPS signals are not received. When the vehicle moves to an area where GPS signals can be received after leaving the vehicle in the GPS shadow area for a long time, it takes much time to calculate the current position of the vehicle due to the initial GPS calibration. Therefore, when only GPS data is used for navigation of the vehicle, a malfunction may occur in a situation and area such as a GPS shadow area.

The above information disclosure in the background section is only for enhancement of understanding of the background of the invention and therefore it may contain information that does not form the prior art that is already known to a person of ordinary skill in the art.

Disclosure of Invention

The invention provides a method for providing connectivity navigation and a navigation system using the same.

More specifically, the present invention may provide a method of providing connectivity navigation capable of improving performance by searching data of all sensors connected to a vehicle and selecting optimized sensor data having high accuracy according to characteristics of an area when the sensor data in use becomes inaccurate or when the vehicle enters an area where it is determined that the sensor data in use becomes inaccurate using location information.

According to one form of the present invention, a method of providing connectivity navigation with a host in a navigation system includes determining a reception state of Global Positioning System (GPS) information, searching for at least one device connected by wire or wirelessly, receiving location sensor information from each searched device, determining reliability of the received location sensor information, and selecting information having high reliability of one of the searched devices as the received information based on the determined reliability.

According to another form of the invention, the method includes the steps of: periodically requesting and receiving position sensor information available from a vehicle controller.

The searching for at least one device connected by wire or wirelessly further comprises the steps of: it is determined whether to establish a connection with the mobile terminal through at least one of wired communication or short-range communication.

Receiving location sensor information from the searched device includes the steps of: requesting position sensor information from the mobile terminal when establishing a connection with the mobile terminal in a wired or wireless manner; and receiving location sensor information from the mobile terminal.

According to another form of the present invention, receiving location sensor information from a searched device includes the steps of: requesting pre-stored location information from a telematics server; and receiving location information from the telematics server.

The location sensor information includes availability, actual location value, and measurement time.

Determining the reliability of the position sensor information includes the steps of: comparing an actual position value according to the GPS information with the received position sensor information to determine reliability, checking availability of the received position sensor information, and calculating a weight of the position sensor information received from the available sensors.

Selecting information with high reliability of one of the searched devices based on the determined reliability comprises the steps of: the location sensor information of the available devices is selected in descending order corresponding to a GPS reception status of at least one of the vehicle or the mobile terminal.

The method is performed by a computer-readable recording medium having a program recorded thereon.

According to another form of the present invention, a navigation system for a vehicle includes: a main unit installed inside a vehicle; a vehicle controller configured to transmit data to or receive data from a host unit through Controller Area Network (CAN) communication; a mobile terminal configured to transmit data to or receive data from a host unit using at least one of wired communication or short-range communication; and a telematics server configured to transmit data to or receive data from at least one of the host unit or the mobile terminal through a wireless internet network, the host unit determining a reception state of Global Positioning System (GPS) information, searching for at least one device connected through a wired or wireless manner, receiving location sensor information from the searched devices, determining reliability of the location sensor information, and selecting information having high reliability of one of the searched devices as reception information based on the determined reliability.

Further areas of applicability will become apparent from the description provided herein. It should be understood that the description and specific examples are intended for purposes of illustration only and are not intended to limit the scope of the present disclosure.

Drawings

In order that the invention may be readily understood, various forms thereof will now be described, by way of example, with reference to the accompanying drawings, in which:

fig. 1 is a diagram showing a conventional navigation system.

FIG. 2 is a diagram illustrating a navigation system according to a form of the present invention;

FIG. 3 is a diagram illustrating a navigation system using position sensor information in accordance with a form of the present invention;

FIG. 4 is a diagram illustrating GPS reliability data received by a navigation system in accordance with a form of the present invention;

FIG. 5 is a flow chart illustrating a method of providing navigation using position sensor information in accordance with a form of the present invention;

6-7 are diagrams illustrating reliability data received by a navigation system according to a form of the present invention as a function of GPS signal status; and

fig. 8 is a view showing a state of a GPS signal according to a running environment of a vehicle according to a form of the present invention.

The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way.

Detailed Description

The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses. It should be understood that throughout the drawings, corresponding reference numerals indicate like or corresponding parts and features.

The suffixes "module" and "unit" of elements herein are used for convenience of description and thus may be used interchangeably and do not have any distinguishable meaning or function.

In the description of the form below, it will be understood that when each element is referred to as being formed "on" (above) or "under" (below) or "before" (front) or "after" (rear) another element, it can be directly on "(above) or" under "(below) or" before "(front) or" after "(rear) the other element, or indirectly formed using one or more intervening elements therebetween.

It will be understood that, although the terms first, second, A, B, (a), (b), etc. may be used herein to describe various elements of the invention, these terms are only used to distinguish one element from another element and the necessity, order, or sequence of the corresponding elements is not limited by these terms. It will be understood that when an element is referred to as being "connected to," "coupled to," or "entering" another element, although one element may be directly connected to or directly entering the other element, one element may also be "connected to," "coupled to," or "entering" the other element via another element.

The terms "comprising," "including," or "having" described herein are not to be construed as excluding other elements, but further include such other elements, because the respective elements may be inherent unless otherwise mentioned. Unless otherwise mentioned, all terms including technical or scientific terms have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. General terms such as those defined in dictionaries should be interpreted as having meanings consistent with the meanings of the relevant art from the context. Unless explicitly defined in the present invention, these terms are not to be construed as having ideal or excessively formal meanings.

Fig. 2 is a view showing a navigation system according to a form of the present invention.

Referring to fig. 2, the navigation system according to the present invention may include a host unit 100, a multi-terminal 200, a mobile terminal 300, a telematics server 400, and a vehicle controller 500.

The host unit 100 may be connected to an external device through a wired/wireless interface. At this time, the external device may include a smart phone, a communication tablet, a wearable device, and the like. Such external devices may be referred to as "mobile terminals".

The host unit 100 may include a wireless communication module. The module may be located inside or outside the host unit 100.

The host unit 100 can wirelessly exchange data with the mobile terminal 300. At this time, the host unit 100 and the mobile terminal 300 may exchange data through short-range wireless communication.

Examples of short-range wireless communication technologies include Bluetooth (TM), NFC (near field communication), RFID (radio frequency identification), IrDA (Infrared data Association), Wi-Fi (Wireless Fidelity), Wi-Fi Direct, or wireless USB (Wireless Universal Serial bus). The data is transmitted and received in accordance with at least one short-range wireless communication technology including short-range wireless communication technologies not listed above.

Host unit 100 may wirelessly exchange data with telematics server 400. Thus, the host unit 100 is configured to transmit and receive wireless signals through a wireless communication network according to the wireless internet technology.

Examples of the wireless internet technology may include WLAN (wireless local area network), Wi-Fi (wireless fidelity), Wi-Fi direct, DLNA (digital living network alliance), WiBro (wireless broadband), WiMAX (worldwide interoperability for microwave access), HSDPA (high speed downlink packet access), HSUPA (high speed uplink packet access), LTE (long term evolution), LTE-a (long term evolution advanced), and the like. Data is transmitted and received according to at least one of wireless internet technologies including internet technologies not listed above.

The host unit 100 may request location information from the mobile terminal 300 connected by a wired or wireless manner. To this end, the host unit 100 may receive available location sensor information from the mobile terminal 300. At this time, the position sensor information may include GPS (global positioning system) information, Wi-Fi information, and the like.

The host unit 100 may exchange data with the vehicle controller using a wired communication technique.

At this time, the host unit 100 may be connected to the vehicle controller through an internal interface such as CAN (controller area network) communication and ethernet communication, thereby establishing connection with the unique sensor of the vehicle.

The host unit 100 may send and receive available position sensor information to and from the wired vehicle controller 500. To this end, the host unit 100 may periodically request vehicle position sensor information. Thereafter, the vehicle controller 500 may receive vehicle position sensor information generated corresponding to the request for vehicle position sensor information.

The host unit 100 may include a GPS (global positioning system) module or a DGPS (differential global positioning system) module to receive position information of the vehicle.

The host unit 100 may determine the reception state of the GPS information.

The host unit 100 may search for a device connected by wire or wirelessly according to the received GPS information.

The host unit 100 may periodically request available position sensor information from the vehicle controller and receive position sensor information from the vehicle controller.

In some forms, the host unit 100 may determine whether to establish a connection with the mobile terminal 300 through wired and short-range communication, request location sensor information from the mobile terminal 300 when establishing a connection with the mobile terminal 300 through wired or wireless means, and receive the location sensor information from the mobile terminal 300.

In some forms, host unit 100 may request pre-stored location information from telematics server 400 and receive location information from telematics server 400.

The host unit 100 may receive the location sensor information from the searched device. The location sensor information may include the availability of location information received from sensors of connected devices, actual location values, and measurement times.

The host unit 100 may determine the reliability of the position sensor information. To this end, the host unit 100 may determine the availability of the received position sensor information and calculate the weight of the position sensor information received from the available sensors.

In some forms, the host unit 100 may compare the actual location value from the GPS information to the received location sensor information to determine reliability. The reliability may be determined in real time and may be performed at a predetermined cycle, without being limited thereto.

The host unit 100 can select information of a device having high reliability as the received information. The host unit 100 may select the location sensor information of the available devices in a descending order of reliability corresponding to the GPS reception state of at least one of the vehicle or the mobile terminal 300.

In some forms, the host unit 100 may divide the vehicle GPS reception state into a GPS shadow state, a good state, a distorted state, and a bad state, and may select the best available position sensor information in descending order of reliability in each case.

In some forms, the host unit 100 may divide the GPS reception state of the mobile terminal 300 into a GPS shadow state, a good state, and a bad state, and may select the best available position sensor information in descending order of reliability in each case.

The host unit 100 may determine the state of the GPS information received through the GPS module.

If GPS reception is difficult, the host unit 100 may periodically search at least one of the mobile terminal 300 or the vehicle controller 500 connected by wire or wireless for an available sensor.

The host unit 100 may determine the accuracy of the received location information. For this, the host unit 100 may obtain reliability data indicating which device has accurate data per location under a specific situation by comparing the actual results of the vehicle GPS and the mobile terminal 300 with the location information.

The host unit 100 may include one or more microprocessors that operate through a setup program, and the setup program may include a series of commands for performing the steps included in a connectivity navigation method according to one form of the present invention.

The multi-terminal 200 may be a wired/wireless interface, and may be used as an interface with various types of external devices connected to a vehicle. For example, the multi-terminal 200 may include a port connectable to the mobile terminal 300 and may be connected to the mobile terminal 300 through the port. Accordingly, the multi-terminal 200 can exchange data with the mobile terminal 300.

The mobile terminal 300 may be an external device for performing wireless communication with at least one of the vehicle or the telematics server 400.

The mobile terminal 300 may exchange data through short-range wireless communication or internet communication using a wireless communication network.

For example, the mobile terminal 300 may exchange information of various sensors disposed therein with the outside. The location sensor information of the mobile terminal 300 may include GPS information, Wi-Fi information, and the like.

The telematics server 400 may transmit and receive data to and from the vehicle and the mobile terminal 300 through a wireless internet network. The telematics server 400 may provide real-time traffic information, high-speed camera information, facility search information, and weather information services to connected devices.

The vehicle controller 500 may transmit vehicle sensor information to the host unit 100. The vehicle position sensor information may be data received from a GPS module, an LTE modem, an ADAS sensor, etc. provided in the vehicle.

The vehicle controller 500 may transmit and receive data to and from the host unit 100 through CAN communication and ethernet communication.

Fig. 3 is a view showing a navigation system using position sensor information according to a form of the present invention.

Referring to fig. 3, the host 100 may check the reliability of the data immediately after vehicle take off or periodically through a connected GPS module.

If the reliability of the received data is low and thus the current location of the vehicle cannot be found, the host unit 100 may search for sensors in the connected mobile terminal 300 and the vehicle controller 500.

The host unit 100 may check the GPS reception status of the received vehicle position sensor information.

The host unit 100 may confirm the GPS reception difficulty and periodically request communication information from the mobile terminal 300 and the vehicle controller 500 connected by wire and wireless. In addition, the host unit 100 may request the last stored location information through the connected telematics server 400.

The host unit 100 may determine the reliability of the requested location sensor information and the last stored location information. That is, the host unit 100 may determine the reliability by predetermined logic.

To this end, the host unit 100 may compare the received GPS signals of the devices. The host unit 100 can determine the accuracy of data of each device according to circumstances by comparing the results, and obtain reliability data of each location.

The host unit 100 can select information of a device having high reliability as the position sensor information for each case according to the result of determining the reliability.

Meanwhile, when the in-use position sensor information becomes inaccurate or when the vehicle entry using the vehicle position information determines that the in-use sensor data becomes inaccurate, the host unit 100 may select optimized optimal position sensor information with high accuracy according to the characteristics of the area.

Fig. 4 is a diagram illustrating GPS reliability data received by a navigation system according to a form of the present invention.

Referring to fig. 4, a GPS signal of the position sensor information received by the host unit 100 is shown.

The location information received by the host 100 may include vehicle GPS information, GPS information of the mobile terminal 300, Wi-Fi information, base station information of a wireless communication network, and GPS information stored in the telematics server 400.

At this time, the location sensor information may include an availability value, an actual location value, a measurement time, and a weight.

The availability value may be 0 or 1. If the availability value is 0, the data weight of the sensor is 0, and thus the data of the sensor may not be used. If the availability value is 1, the weight of the sensor data may be calculated.

The actual location value may indicate a latitude and a longitude. The measurement time may indicate a time of inputting the location information in units of year, month, and day. The weight may indicate a cumulative number of uses.

That is, the host unit 100 can select information of a device having high reliability for each case as the location information based on the accuracy of data of each device. FIG. 5 is a flow chart illustrating a method of providing navigation using position sensor information in accordance with a form of the present invention.

Referring to fig. 5, the host unit 100 may request vehicle sensor information from the vehicle controller 500 through CAN communication at a predetermined cycle. The vehicle controller 500 may generate vehicle position sensor information according to a request for the vehicle sensor information, and the host unit 100 may receive the vehicle position sensor information generated by the vehicle controller 500 through CAN communication (S510).

After step S510, the host unit 100 may determine whether at least one of a wired connection or a wireless connection with the mobile terminal 300 is established (S520).

After step S520, when at least one of a wired connection or a wireless connection is established with the mobile terminal 300, the host unit 100 may request the position sensor information of the mobile terminal 300 (Y of S520). The mobile terminal 300 may generate the location sensor information of the mobile terminal 300 in response to the request for the location sensor information, and the host unit 100 may receive the location sensor information of the mobile terminal 300 generated by the mobile terminal 300.

Meanwhile, when at least one of a wired connection or a wireless connection with the mobile terminal 300 is not established, the host unit 100 may request location information from the telematics server 400 through a mobile communication network. The telematics server 400 may transmit pre-stored location information in response to the request for location information (N of S520).

After step S520, the host unit 100 may check the availability of each sensor (S530).

After step S530, the host unit 100 may calculate the weight of each sensor received (S540). In the method of calculating the weight N of each sensor, the weight N may be a sum of 50% of a time value and 50% of an actual position value (GPS). At this time, the time is obtained by subtracting the measured time from the current time, and the actual position value GPS may be obtained by subtracting the degree of shaking at the previous position value from the variance value. At this time, if the availability value is 0, the weight N may be 0.

After step S540, the host unit 100 may determine whether there is a sensor having a high weight N (S550).

After step S550, when there is a sensor having a high weight N, the host unit 100 may use information of a device having high reliability as location information.

Fig. 6 to 7 are views showing reliability data according to a GPS signal state received by a navigation system according to a form of the present invention.

Referring to FIG. 6, a first form shows position sensor information that is available when the vehicle is located in a GPS shadow area.

The navigation system according to the first form may determine that the vehicle is in a GPS shadow area and may use the location sensor information through Wi-Fi of the mobile terminal 300 and the base station in addition to the GPS signal. Thus, the navigation system may use the Wi-Fi, base station, and location sensor information to confirm and display the current location of the vehicle.

Referring to fig. 7, the second form shows a case where the vehicle moves from a shadow area to a good reception area. At this time, the vehicle may compare the GPS information of the vehicle with the GPS signal of the mobile terminal 300 through a GPS signal checker (not shown).

In fig. 7, the second form shows data of a state in which the GPS of the vehicle is good and the GPS of the mobile terminal 300 is weak.

In the navigation system according to the second form, the GPS signal of the vehicle quickly becomes good, but the GPS signal of the terminal becomes poor. In this case, it is necessary to use the GPS information of the vehicle, but it takes some time to perform the GPS calibration. Thus, the navigation system may use the base station information and Wi-Fi information to determine the location of the vehicle before the GPS information of the vehicle stabilizes. Thereafter, when the GPS data of the vehicle is stable, the GPS of the vehicle may be used to determine the location of the vehicle.

Fig. 8 is a view showing a state of a GPS signal according to a running environment of a vehicle according to a form of the present invention.

Referring to fig. 8, the position sensor information received by the navigation system may vary according to the driving environment of the vehicle.

The navigation system can divide the GPS reception state into a GPS shadow area, a good area, a distortion area, and a bad area according to the situation in which the vehicle is traveling, and can select the best available position sensor information in each case in descending order of reliability.

For example, when the vehicle is traveling in a tunnel or is located in a large underground parking lot, the vehicle GPS reception state received from the sensor of the vehicle may be a GPS shadow state. At this time, the driving in the tunnel may include driving in a curved tunnel. Since the GPS cannot be received in the tunnel, the current position cannot be calculated. However, other options of receiving position sensor information as described above may be used.

For example, when the vehicle is traveling on a hill or traveling straight at a high speed, the vehicle GPS reception state received from the sensor of the vehicle may be a GPS good state. At this time, the mountain traveling may include traveling on a steep slope and traveling in a sharp turn.

For example, when the vehicle travels in a building concentration area and a multi-path area, the vehicle GPS reception state received from the sensor of the vehicle may be a GPS distortion state. When it is assumed that a downtown high-rise building blocks the left or right side of the vehicle, the satellite signal on the left or right side reaches the shortest distance, and the satellite signal on the other side is blocked by the building and reflected so that the signal may not be received. However, other options of receiving position sensor information as described above may be used.

For example, if the vehicle is traveling on a overpass (uderpass), a woodland path, a spiral slope, and a parking lot where GPS intermittent reception is performed, the vehicle GPS reception status received from the sensor of the vehicle may be a GPS bad status. At this time, driving on the overpass may include driving on a steep slope of the city.

Therefore, in an unstable environment where normal GPS reception is difficult, such as driving on an overpass, the GPS reception rate may be greatly reduced, and the GPS receiver may erroneously calculate the current position. In this case, since the current position matches the rear road rather than the road on which the vehicle actually travels, a route search may be continuously performed or it may be recognized that the vehicle is on the overpass. However, other options as described above may be used to receive the position sensor information.

Meanwhile, the navigation system may divide the GPS reception state of the mobile terminal 300 into a GPS shadow state, a good state, and a bad state, and may select the best available position sensor information in each case in descending order of reliability.

For example, when the mobile terminal 300 is located in the compartment of the vehicle, the GPS reception state of the mobile terminal 300 received from the sensor of the mobile terminal 300 may be a GPS shadow state.

For example, when the mobile terminal 300 is located on the dashboard of the vehicle, the GPS reception state of the mobile terminal 300 received from the sensor of the mobile terminal 300 may be a GPS good state.

For example, when the mobile terminal 300 is located at a middle position of the vehicle, the GPS reception state of the mobile terminal 300 received from the sensor of the mobile terminal 300 may be a GPS bad state.

The method for providing connectivity navigation and the system thereof according to the present invention have the following effects.

First, the current location is easily found in an environment where GPS reception is difficult.

Second, when errors occur in GPS performance, the errors can be reduced by a correction algorithm.

Third, a malfunction that may occur using only the vehicle GPS can be reduced.

The method according to this form may be implemented as a program for execution on a computer and stored in a computer-readable recording medium. Examples of the computer readable recording medium include ROM, RAM, CD-ROM, magnetic tapes, floppy disks, and optical data storage.

The computer-readable recording medium can be distributed over a plurality of computer devices connected to a network so that computer-readable code is written thereto and executed therefrom in a decentralized manner. Functional programs, codes, and code segments required for implementing the forms herein may be interpreted by one of ordinary skill in the art.

While the invention has been described in connection with what is presently considered to be practical exemplary forms, it is to be understood that the invention is not to be limited to the disclosed forms, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.