KR20210013957A - Method for analyzing location of vehicle and navigation device - Google Patents

Abstract

According to the present invention, a vehicle location analysis method analyzes the location of a vehicle by a navigation device and comprises: a step of receiving driving information of the vehicle from an on-board diagnosis (OBD) scanner of the vehicle; a step of recognizing terrain information for a point at which a wireless communication module is installed through identification information received from the wireless communication module or checking surrounding image information of the vehicle photographed by a camera to recognize terrain information for an object checked in the image information; and a step of analyzing the location of the vehicle based on the driving information and the terrain information if the terrain information is recognized.

Description

Vehicle location analysis method and navigation device {METHOD FOR ANALYZING LOCATION OF VEHICLE AND NAVIGATION DEVICE}

The present invention relates to a vehicle position analysis method and a navigation device, and more particularly, when the terrain information on the surrounding points of the vehicle is recognized, the vehicle to analyze the position of the vehicle based on the terrain information and driving information of the vehicle It relates to a location analysis method and a navigation device.

Conventional navigation using a GPS (Global Positioning System) obtains a GPS signal and analyzes the position of a vehicle, so there are restrictions on response speed, accuracy, and available locations.

In particular, since GPS is not available in tunnels, underground, and inside buildings, it is not possible to analyze the location of the vehicle. In the outdoors where GPS is available, the error range of the GPS signal reaches 15 to 30 m. Cannot be measured.

Due to such a limitation of GPS, it is difficult to analyze which lane the vehicle is located in in the lane divided within 3m, and there is a problem in that it is not possible to quickly provide a route guidance service at complex alleys and highway exits due to a slow reaction speed.

Accordingly, there is an increasing demand for overcoming the limitation of GPS and more accurately analyzing the location of the vehicle, and through this, a method for solving the above-described problem is urgently needed.

Korean Patent Publication No. 1016483400000 ("A device for detecting the position of a railroad vehicle and a method therefor", Korea Railroad Research Institute) Korean Registered Patent Publication No. 1010119530000 ("Self-positioning system and method of container transfer vehicle, and recording medium recording the method", Seoho Electric Co., Ltd., Korea Institute of Oceans and Technology, Korea Railroad Research Institute) Korean Patent Publication No. 1009453760000 ("System and method for measuring unstructured vehicle loading position", POSCO Co., Ltd.)

An object of the present invention is to provide a vehicle position analysis method and a navigation device for analyzing the position of a vehicle based on the terrain information and driving information of the vehicle when the terrain information on the surrounding points of the vehicle is recognized. The present invention utilizes the surrounding terrain information and driving information of the vehicle as main elements, and when the terrain information is not recognized, a GPS signal is used as an auxiliary element to analyze a vehicle position and a navigation device It aims to provide.

According to an embodiment of the present invention for achieving the above object, a method for analyzing a vehicle position in a navigation device, the method comprising: receiving driving information of the vehicle from an On Board Diagnosis (OBD) scanner of the vehicle; Through the identification information received from the wireless communication module, the terrain information on the location where the wireless communication module is installed is recognized, or by checking the surrounding image information of the vehicle captured by the camera, the terrain on the object identified in the image information Recognizing information; And analyzing the position of the vehicle based on the driving information and the terrain information when the terrain information is recognized. In the vehicle position analysis method, the terrain information is provided in advance. If not recognized for a set period of time, further comprising the step of obtaining a GPS signal, the vehicle location analysis step may include the step of analyzing the location of the vehicle based on the GPS signal and driving information.

The obtaining of the GPS signal may include obtaining the GPS signal when the vehicle is moved beyond a preset reference distance from a point corresponding to the recently recognized terrain information, and the terrain information is not additionally recognized. have.

The reference distance may be set based on at least one of an average vehicle speed, a driving habit, and a road condition.

According to an embodiment of the present invention, since the location of the vehicle can be accurately analyzed based on the information on the surrounding terrain of the vehicle and the driving information of the vehicle, it is possible to accurately identify the information on the lane where the vehicle is currently located, and thus a sophisticated navigation service. There is an effect that can be provided.

In addition, according to an embodiment of the present invention, the surrounding terrain information of the vehicle and the driving information of the vehicle are used. In analyzing the location of the vehicle, the reaction speed can be improved, the error range can be reduced, and indoor and outdoor There is an effect that there is no limit of the analysis area.

In addition, according to an embodiment of the present invention, if a wireless communication module is installed at a specific point or an object such as a structure or a signboard is placed at a specific point, terrain information for the corresponding point is recognized and the location of the vehicle is analyzed. Because it can be done, there is an effect of increasing convenience because no separate infrastructure facilities are required.

In addition, according to an embodiment of the present invention, based on the terrain information and driving information recognized only for a certain period from when the terrain information is recognized, the position of the vehicle is analyzed, and additional terrain information after the vehicle has moved over a certain distance. If is not recognized, by analyzing the location of the vehicle based on the GPS signal and driving information, it is possible to prevent occurrence of an error that increases as the distance between the vehicle and the point corresponding to the terrain information increases.

In addition, according to an embodiment of the present invention, based on the surrounding terrain information of the vehicle and the driving information of the vehicle, the position of the vehicle is precisely analyzed, regardless of the location where the vehicle is located, even if the vehicle is located inside the building. , Since it is possible to analyze not only the building where the vehicle is located, but also the floor of the building, and also analyze where the vehicle is moving from inside, it is possible to provide a precise navigation service.

1 is a view showing a vehicle position analysis system according to an embodiment of the present invention.
2 is a block diagram showing the configuration of a navigation device according to an embodiment of the present invention.
3 is a diagram illustrating a process of analyzing a location of a vehicle equipped with a navigation device according to an embodiment of the present invention.
FIG. 4 is a diagram illustrating a vehicle located outdoors and map information of a surrounding vehicle according to an embodiment of the present invention.
FIG. 5 is a diagram illustrating information on a vehicle located indoors and surrounding map information of the vehicle according to an embodiment of the present invention.

1 is a view showing a vehicle position analysis system according to an embodiment of the present invention.

Referring to Figure 1, the vehicle location analysis system according to an embodiment of the present invention provides a wireless communication module 100, an OBD scanner 200, a navigation device 300, and map information capable of communicating with each other through a wireless communication or a communication network. It may include a server 400.

First, the wireless communication module 100 is a module for performing corresponding wireless communication according to the type of wireless communication. For example, if the wireless communication is Bluetooth, the wireless communication module 100 is a beacon device. And, if the wireless communication is short-range wireless communication (NFC), the wireless communication module 100 may be a tag device, and may be fixed and installed at any one point.

In addition, the wireless communication module 100 is applied with RFID (Radio Frequency Identification) technology, a semiconductor chip that performs communication through a radio frequency may be embedded, a tag, a label, a card It can be implemented in various forms such as.

The wireless communication module 100 may perform communication by being connected to a device performing wireless communication within a range in which communication is possible through wireless communication.

The OBD scanner 200 may generate driving information of a vehicle equipped with the OBD scanner 200. For example, the OBD scanner 200 may analyze a steering wheel angle, a driving speed, a gear shift, etc. in real time to generate driving information indicating a moving direction, a moving speed, and a moving distance of the vehicle.

The OBD scanner 200 may transmit driving information generated in real time to the navigation device 300 through wired or wireless communication through an OBD terminal of a vehicle.

The navigation device 300 may check the current location of the vehicle on which the navigation device 300 is mounted, and display the current location of the vehicle and information on the surrounding map of the vehicle on the screen.

The navigation device 300 may receive driving information of the vehicle from the OBD scanner 200 in real time.

The navigation device 300 may recognize topographic information about a point where the wireless communication module 100 is installed through the identification information received from the wireless communication module 100.

For example, the wireless communication module 100 may be installed at an entrance to a parking lot under a building, a lane, a stop line, and a toll gate, respectively, and the navigation device 300 receives the identification information from the wireless communication module 100, Through this, topographic information indicating where the point where the wireless communication module 100 is installed may be generated and recognized.

If the topographic information is not recognized, the navigation device 300 may obtain a GPS signal, analyze the location of the vehicle based on the GPS signal and driving information, and check the position.

In a state in which the GPS signal is obtained, the navigation device 300 analyzes the position of the vehicle based on the GPS signal and driving information, and when the terrain information is recognized, the GPS signal is not obtained, and the recognized terrain information and driving information Based on, it is possible to analyze the location of the vehicle.

For example, the navigation device 300 sets the recognized terrain information as a reference point, and based on the driving information (moving direction from the reference point, moving speed, moving distance, etc.) acquired through the ODB scanner 200, the current vehicle You can identify the location of and display it on a map.

The map information providing server 400 may store and manage map information in a database, and may store and manage not only outdoor map information but also indoor map information of a building.

2 is a block diagram showing the configuration of a navigation device 300 according to an embodiment of the present invention.

2, the navigation device 300 includes a display unit 310, a communication unit 320, a terrain information recognition unit 330, a vehicle position analysis unit 340, a reference distance setting unit 350, and a map information acquisition unit. (360) can be included

The display unit 310 may display a current location of a vehicle on which the navigation device 300 is mounted and information on a surrounding map of the vehicle on a screen.

When the vehicle equipped with the navigation device 300 moves, the communication unit 320 may receive driving information of the vehicle from the OBD scanner 200, and the vehicle equipped with the navigation device 300 is a wireless communication module 100 If located within the communication range of, the identification information broadcast from the wireless communication module 100 may be received.

The terrain information recognition unit 330 may recognize terrain information on a point where the wireless communication module 100 is installed through the identification information.

For example, the wireless communication module 100 may be installed at an entrance to a parking lot under a building, a lane, a stop line, and a toll gate, respectively, and the terrain information recognition unit 330 identifies a point where the wireless communication module 100 is installed through identification information. By grasping, it is possible to recognize by generating topographic information indicating where the corresponding point is.

When the terrain information is recognized by the terrain information recognition unit 330, the vehicle location analysis unit 340 may analyze the location of the vehicle based on the driving information and the terrain information.

If the terrain information information is not recognized for a preset period, the vehicle location analysis unit 340 may analyze the location of the vehicle based on the GPS signal and driving information.

For example, when the first terrain information is recognized, the vehicle position analysis unit 340 analyzes the position of the vehicle based on the first terrain information and driving information, and then the second terrain information is recognized within 3 minutes after the first terrain information is recognized. When additional information is recognized, the position of the vehicle may be analyzed based on the second terrain information and driving information.

That is, the vehicle location analysis unit 340 analyzes the location of the vehicle based on the recently recognized terrain information and driving information, and when other terrain information is additionally recognized, based on the newly recognized terrain information and driving information, You can analyze the location of the vehicle.

The reference distance setting unit 350 may set the reference distance based on at least one of an average speed, a driving habit, and a current road condition of the vehicle equipped with the navigation device 300.

The reference distance setting unit 350 may set the reference distance again by checking at least one of an average vehicle speed, a driving habit, and a road condition in real time or periodically.

For example, the reference distance setting unit 350 may increase and set the reference distance as the average vehicle speed increases and the current driving road condition is closer to the unpaved road.

The map information acquisition unit 360 may acquire map information around the vehicle from the memory of the navigation device 300 or the map information providing server 400 according to the current location of the vehicle, and the display unit 310 is a map information acquisition unit. The map information obtained at 360 may be displayed on the screen.

The map information acquisition unit 360 may acquire indoor map information on the building when it is detected that the vehicle has entered the building through the location of the vehicle analyzed by the vehicle location analysis unit 340.

The map information acquisition unit 360 may acquire indoor map information about the building from the memory of the navigation device 300 or the map information providing server 400 before the vehicle enters the building.

3 is a diagram illustrating a process of analyzing a position of a vehicle equipped with a navigation device 300 according to an embodiment of the present invention.

First, when the vehicle in which the navigation device 300 is mounted is turned on, the navigation device 300 may be driven, and the OBD scanner 200 of the vehicle may also be driven.

Thereafter, in the vehicle movement step (S301), when the vehicle moves, in the driving information receiving step (S302), the navigation device 300 receives driving information from the OBD scanner 200, and in the GPS signal acquisition step (S303). , The navigation device 300 may acquire a GPS signal.

In step S304, when terrain information is recognized, the navigation device 300 may control not to acquire a GPS signal, and in step S304, if the terrain information is not recognized, the navigation device 300 returns to step S303, It is possible to maintain the acquisition state of the GPS signal.

In the vehicle position analysis step (S305), if the terrain information is not recognized, the navigation device 300 may analyze the position of the vehicle based on the driving information and the GPS signal. When the terrain information is recognized, the driving information and the terrain Based on the information, it is possible to analyze the location of the vehicle.

FIG. 4 is a diagram illustrating a vehicle located outdoors and map information around a vehicle according to an embodiment of the present invention.

First, when a vehicle equipped with the navigation device 300 is located outdoors, the navigation device 300 may receive driving information from the OBD scanner 200 while acquiring a GPS signal, and receive the GPS signal and the driving information. As a basis, it is possible to analyze the location of the vehicle.

FIG. 5 is a diagram illustrating information on a vehicle located indoors and surrounding map information of the vehicle according to an embodiment of the present invention.

First, when the topographic information is recognized, the navigation device 300 may analyze the location of the vehicle based on the topographic information and driving information, and detect that the vehicle has entered the building through the analyzed location of the vehicle. have.

When it is detected that the vehicle enters the building, the navigation device 300 may stop driving the GPS module so that the GPS signal is not obtained.

As described above, the navigation device 300 can analyze the location of the vehicle based on the terrain information and driving information without obtaining a GPS signal inside the building, and the wireless communication module 100 is located in a specific area of the underground parking lot of the building. ) Is installed or an object such as a structure or signboard is placed, it is possible to recognize the topographic information for the corresponding area, and thus various information on the width of lanes and the number of lanes can be grasped even in the underground parking lot of the building.

100: wireless communication module
200: OBD scanner
300: navigation device
310: display
320: communication department
330: topographic information recognition unit
340: vehicle position analysis unit
350: reference distance setting unit
360: map information acquisition unit
400: map information providing server

Claims (12)

In a navigation device, in a method of analyzing a vehicle position,
Receiving driving information of the vehicle from an On Board Diagnosis (OBD) scanner of the vehicle;
Through the identification information received from the wireless communication module, the terrain information on the location where the wireless communication module is installed is recognized, or by checking the surrounding image information of the vehicle captured by the camera, the terrain on the object identified in the image information Recognizing information; And
And analyzing the position of the vehicle based on the driving information and the terrain information when the terrain information is recognized.
The method of claim 1,
If the terrain information is not recognized for a preset period, further comprising the step of obtaining a GPS signal,
The vehicle position analysis step,
And analyzing the location of the vehicle based on the GPS signal and driving information. The method of claim 2,
The step of obtaining the GPS signal,
And acquiring the GPS signal when the vehicle moves beyond a preset reference distance from a point corresponding to the recently recognized terrain information and the terrain information is not additionally recognized. The method of claim 3,
The reference distance is set based on at least one of an average vehicle speed, a driving habit, and a road condition. The method of claim 1,
If the terrain information is recognized, further comprising the step of controlling not to acquire a GPS signal, vehicle location analysis method. The method of claim 1,
When it is detected that the vehicle has entered the building through the analyzed location of the vehicle, obtaining indoor map information for the building. The method of claim 6,
The step of obtaining the indoor map information,
And acquiring indoor map information on the floor of the building where the vehicle is located when the floor of the building where the vehicle is located is identified through the analyzed vehicle location. The method of claim 1,
If the GPS signal is not obtained, further comprising the step of changing to a standby state for recognizing the terrain information, vehicle location analysis method. A communication unit for receiving driving information of the vehicle from an On Board Diagnosis (OBD) scanner of the vehicle, and receiving identification information broadcast from a wireless communication module;
Through the identification information received from the wireless communication module, by recognizing the terrain information on the point where the wireless communication module is installed, or by checking the surrounding image information of the vehicle photographed by the camera, the object identified in the image information is A topographic information recognition unit that recognizes topographic information; And
When the terrain information is recognized, the navigation device comprising a vehicle position analysis unit that analyzes the position of the vehicle based on the driving information and the terrain information. The method of claim 9,
The communication unit,
If the terrain information is not recognized for a preset period, a GPS signal is obtained,
The vehicle position analysis unit,
A navigation device that analyzes the location of the vehicle based on the GPS signal and driving information. The method of claim 10,
The communication unit,
When the vehicle moves beyond a preset reference distance from a point corresponding to the recently recognized terrain information and the terrain information is not additionally recognized, the GPS signal is obtained. The method of claim 11,
The navigation device further comprises a reference distance setting unit configured to set the reference distance based on at least one of an average vehicle speed, a driving habit, and a road condition.

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