KR102456254B1 - Method of constructing location information using roadway cover information - Google Patents

Abstract

The present invention relates to a method of constructing a system for providing location information according to sign information to a user by linking lane or other indication information printed on the road surface with location information, a) Steps of recognizing first signs and identifying location information of the recognized first signs, and b) storing the information of the first signs recognized in step a) by pairing with the location information of the first signs It is characterized in that it includes.

Description

{Method of constructing location information using roadway cover information}

The present invention relates to a method for constructing location information, and more particularly, to a method for constructing location information using sign information of a roadway.

GIS (Geographic Information System) is a kind of information system designed to effectively collect, store, update, coordinate, analyze, and express all geospatially referenceable information. Recently, with the spread of various electronic devices such as smartphones, various services using GIS have been provided.

Meanwhile, a location information providing service using a satellite signal such as GPS is widely used. However, in the case of GPS, since it is a method of determining the position of a GPS receiver in a kind of triangulation method by measuring the distance from a plurality of satellites to the GPS receiver, a GPS receiver is essential, and a place where the GPS signal does not reach ( For example, in a tunnel), there was a problem in that it was difficult to measure the location.

The present applicant has proposed a technique for confirming the location information of a moving object such as a vehicle by using the lane or sign information drawn on the lane in Application No. 10-2019-0160868, the inventor of the previous application. A method for establishing a system in connection with this has not been disclosed, and a method for establishing a system for confirming location information of a moving object such as a vehicle using lane or sign information is required.

Korean Patent Application Laid-Open No. 10-2010-0022151 ("GIS data processing apparatus and path search method", published on March 2, 2010)

The present invention has been devised to solve the above problems, and the method for constructing location information using road sign information according to the present invention is a method of constructing a system by linking such lane or sign information with location information Its purpose is to provide

The method for constructing location information using road sign information according to the present invention for solving the above problems is a) recognizing the first signs printed on the road surface while moving the road, and the positions of the recognized first signs and b) pairing the information of the first signs recognized in step a) with the location information of the first signs and storing the information.

In addition, the first mark is characterized in that it is a lane for a predetermined section, a mark on a lane, or a combination of a lane and a lane for a predetermined section.

In addition, the first sign is a lane for a predetermined section, and the lane for each predetermined section is characterized in that at least one of a width, a length, and a shape is different from each other.

In addition, the first sign is characterized in that the barcode, QR code or traffic mark printed on the road surface.

In addition, the step a) is characterized in that the position information of the first signs is grasped using GPS.

In addition, a-1) performed before step b), further comprising the step of recognizing a second cover that is a structure, landscape or landmark located in the vicinity of the first cover recognized in step a), wherein b) ), the combination information of the first cover and the second cover recognized in step a) and the location information of the first covers are paired and stored.

In addition, the step a-1) is characterized in that at least one or more of the shape and size of the second cover is recognized.

According to the method of constructing location information using the sign information of the roadway according to the present invention as described above, the location information of the first sign printed on the road is grasped, the information of the first sign and the location information are paired and stored in the server By doing so, there is an effect that it is easy to construct a system including location information using the road sign information more conveniently.

In addition, the present invention does not stop at simply printing the first sign and pairing and storing the location information of the first sign, but also recognizes the second sign that is a structure, sign or landmark located in the vicinity of the road, and recognizes the first sign and the second sign. Since the location information according to the combination of the two covers is paired and stored, there is an effect that more and more detailed location information can be stored.

1 is a schematic diagram of a method for constructing location information using road sign information according to a first embodiment of the present invention;
2 is a schematic diagram of a type of a first cover printed in step a) of a method for constructing location information using cover information of a roadway according to the first embodiment of the present invention;

Hereinafter, with reference to the accompanying drawings, a method for constructing location information using road sign information according to the present invention will be described in detail. The accompanying drawings are provided by way of example only so that the technical idea of the present invention can be sufficiently conveyed to those skilled in the art, and the present invention is not limited to the drawings presented below and may be embodied in other forms. have.

[First embodiment]

The method for constructing location information using road sign information according to an embodiment of the present invention may include steps a) and b) that are sequentially performed.

Step a) recognizes the first signs printed on the road surface while moving the road, and recognizes location information of the recognized first signs.

1 schematically shows a process in which step a) is performed.

As shown in FIG. 1 , step a) may be performed through the mobile device 10 . The mobile device 10 used in step a) is a device for recognizing the first sign, and may include a drive system that can move on the road like a vehicle, and a recognition device 20 that can recognize the first sign. have. The recognition device 20 may recognize the first signs printed on the road surface using an image processing method. To this end, the recognition device 20 is installed in the mobile device 10 to photograph a road surface and receive an image, and a photographing means for recognizing the type of the first sign from the image of the road surface input from the photographing means. It may include an image processing unit that performs a predetermined image processing process. The image processing unit may include a memory and an operable electronic component. In addition, the mobile device 10 may include a positioning unit 30 .

Figure 2 shows the types of the first cover recognized in step a).

As shown in FIG. 2 , the first signs printed on the road surface recognized through the mobile device 10 in step a) may be lanes for a predetermined section or may be marks on the lane. Here, the lane of the predetermined section may be a solid line or a dotted line stipulated in the Domestic Road Traffic Act. In step a), the lanes to the first sign recognized during the predetermined section may be different from each other at least one or more of the width, length, and shape of the lane.

This will be described in more detail with reference to FIG. 2 . When the predetermined section in step a) is a 50m section based on the moving distance of the mobile device 10, as shown in FIG. 2a, the width of the lane printed in the 0-50m section is W1, and FIG. 2b As shown in , the width of the lanes printed in the 50 to 100 m section may be different from each other as W2. For example, W1 and W2 may be, in order, the maximum width of 15 cm and the minimum width of 10 cm of the width of the lane stipulated in the Road Traffic Act.

As another example, if the first sign recognized by the recognition device 20 of the mobile device 10 is a dotted line printed on the road surface, as shown in FIG. When the length of the dotted line is L1, as shown in FIG. 2D , the length of the dotted line printed in the 50 to 100 m section may be different from each other as L2. For example, L1 and L2 may be 5m and 6m respectively in order.

As another example, if it is assumed that the first sign recognized by the recognition device 20 of the mobile device 10 is a solid line, as shown in FIG. It may have a trapezoidal shape that is reduced to , and, as shown in FIG. 2f , the lanes printed in the 50 to 100 m section may have a trapezoidal shape in which the width is gradually increased.

That is, the method for constructing location information using road sign information according to the first embodiment of the present invention recognizes a first sign that is different in at least one of width, length and shape of a lane in a predetermined section, as shown in FIG. 2 . Thus, it is possible to recognize the location information of each of the first signs. When the elements different from the first signs are the shape of the lane, that is, the trapezoidal shape is described in FIGS. 2E and 2F, but the present invention does not limit the shape of the lane to this, and an hourglass that decreases and increases in width It may be a shape, such as a shape that increases and then decreases in width, a zigzag diagonal line, or the like.

The first sign recognized in step a) may be at least one of a barcode, a QR code, and a traffic sign that is not a lane. The traffic mark may be a mark for guiding the flow of traffic, such as a crosswalk or yield sign printed on the road surface in advance, and the barcode and QR code are location information using the sign information of the road according to the first embodiment of the present invention. To use the construction method, it can be pre-printed on the road surface. In addition, although not described above, when the first sign is a lane and a dotted line, the first sign can be different by varying the length of the dotted line as well as the interval between the dotted line and the dotted line adjacent to each other, and the lane consisting of a solid line or a dotted line , printed barcodes, QR codes, and traffic signs can be combined to form the first sign information. That is, in the present invention, the first sign is any one selected from lanes, barcodes, QR codes and traffic signs, or may be a combination of two or more, and when the first sign is composed of two or more combinations, the first sign is a predetermined It may be a combination of lanes, barcodes, QR codes, and traffic signs printed on the road surface within the section.

In step a), while recognizing the first cover, position information of each of the first covers is identified. The positioning of the first sign may be performed through the positioning unit 30 installed in the moving device 10, and when the first sign is recognized in a predetermined section, the positioning unit 30 is operated by the moving device (10). By grasping the position of, it is possible to grasp the position information of the first cover. The localization unit 30 may determine the location of the mobile device 10 using GPS, and in order to perform step a), the recognition device 20 and the localization unit 30 may operate in conjunction with each other. . As described above, when the first sign is a lane, the single first sign itself can be recognized by dividing it into a predetermined section (eg, a 50m section). In this case, as the mobile device 10 moves, the position determining unit 30 operates in the rear portion (eg, 45 to 50 m) of the 50 m section, so that the position information of the first cover printed in the predetermined section can be grasped. To this end, the mobile device 10 may be provided with a measuring means capable of separately measuring information on the distance currently moved by the mobile device 10 , and the moving distance measuring means of the mobile device 10 is a location determining unit. (30) can be operated in conjunction with. Of course, when the first sign is a QR code, bar code, or traffic mark rather than a lane, step a) grasps the location information for each code or mark, not the location information for each section described above.

When step a) is performed, information on the first cover for each predetermined section and location information of each first cover are generated. Step b) is a step of pairing and storing the information of the first signs recognized in step a) with the location information of the first signs. Step b) stores the information of the first covers and the location information of each of the first covers in the storage device, and then uploads the information stored in the storage device to the server after step a) is completely completed, or step a) The information obtained through step a) can be paired by accessing the server in the process of being performed, and can be stored in the server in real time. The storage device may be installed in the mobile device 10, and the mobile device 10 may include a communication device to transmit information stored in the storage device to the server or to transmit information obtained in real time to the server. have. The above-described communication window may be a device for performing various communication methods. The first cover information stored in the server and the location information of each first cover may be converted into a database.

The information databased on the server identifies the information on the first sign later using an identification device installed in a vehicle traveling on the road on which the first sign is printed, and identifies the location information of the first sign printed at a specific location on the road. By doing so, it is possible to determine the current location of the vehicle in a way other than GPS. To this end, the vehicle may be equipped with a device capable of recognizing the first sign, and the device includes a device for identifying the first cover of the first cover and a device for identifying the first cover of the image input through the photographing device. It may include, and the identification device may be a device that can use an image processing technique to identify the first cover or to read barcodes and QR codes.

According to the present invention, location information can be constructed by using the method described above, and the location of a vehicle moving on the road can be determined by replacing the GPS. However, it may be preferable to use the present invention for the purpose of managing facilities in a relatively limited space, such as a workshop, an airport runway, or a parking lot, rather than using it in a relatively large area.

[Second embodiment]

In the method for constructing location information using road sign information according to the second embodiment of the present invention, step a-1) is performed in the method for constructing location information using road sign information according to the first embodiment of the present invention. include more

Step a-1) is performed before step b). Step a-1) may be performed simultaneously with step a), and step a-1) recognizes a second sign that is a structure, landscape or landmark located in the vicinity of the first sign recognized in step a). In step a-1), the second mark is performed through a photographing means installed on the front, rear or side of the moving device 10, a radar that can grasp the shape of an object, or both the photographing means and the radar. can

When a lane, barcode, QR code or traffic mark printed on a road surface within a predetermined section is referred to as a first mark, the second mark may be a structure, landscape or landmark located within the same predetermined section. In step b), the information of the first covers recognized in step a), the information of the second covers recognized in step a-1), and the location information of each of the first covers may be paired and stored. In step a-1), the shape of the second cover may be recognized, or both the shape and size may be recognized.

The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention as claimed in the claims.

1: road surface
10: mobile device
20: recognition device
30: positioning unit

Claims (7)

a) recognizing the first signs printed on the road surface while moving the road, and recognizing the location information of the recognized first signs; and
b) pairing and storing the information of the first signs recognized in step a) with the location information of the first signs;
including,
The first sign is a combination of any one of a barcode, a QR code, and a traffic sign printed on the road surface, and a lane for a predetermined section,
The method for constructing location information using road sign information, characterized in that lanes during the predetermined section have at least different shapes among width, length and shape.
delete delete delete According to claim 1,
In step a), the method of constructing location information using sign information of a roadway, characterized in that the location information of the first signs is grasped using GPS.
According to claim 1,
a-1) performing before step b) and recognizing a second cover that is a structure, landscape or landmark located in the vicinity of the first cover recognized in step a); further comprising,
In step b), the combination information of the first and second signs recognized in step a) and the location information of the first signs are paired and stored. construction method.
7. The method of claim 6,
The step a-1) comprises recognizing at least one of the shape and size of the second sign.

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