KR20130000754A - A method for correcting errors in road data of the navigation map - Google Patents

Abstract

The present invention comprises the first step of turning on the user terminal, and activating the navigation function; Determining whether the vehicle is traveling or walking according to the route guidance of the destination route search result; In step 1-3, if the determination is made in step 1-2, the method further comprises: storing, in the map error log file, information related to a departure from a predetermined path or driving or walking in an area other than a road on a map; A first to fourth step of storing, in the map error log file, relevant information when driving or walking an area other than a road on a map if 'NO' is determined in the first to second steps; Analyzing the map error log file and repeatedly departing the route more than a predetermined number of times in the same traveling direction within a driving range or walking range of a predetermined size and classifying it as a 'road change suspected area' and storing it in the map error log file. Steps 1-5; Analysis of the map error log file and repeatedly driving or walking an area other than a road on a map within a driving range or a walking range of a predetermined size repeatedly occurs more than a predetermined number of times. Including the first to sixth step of storing in a log file, wherein the related information is based on the GPS (Global Positioning System) coordinate information based on location information, road identification information, driving direction, driving according to the route guidance of the destination route search results Or a second step of transmitting at least one of a map error log file to a server, including at least one of walking or not. A third step of analyzing the map error log file in the server; A fourth step of displaying a warning message on a user terminal when driving or walking in a local area for suspected road data error; A road map error correction method of a navigation map further includes a fifth step of correcting a navigation map error and updating a map on a user terminal.
According to the present invention, by performing an analysis for detecting an error of road data in a user terminal, it is possible to detect and correct an error of road data more efficiently than in the prior art of identifying a road error point only on a server. Has the effect of saving unnecessary time and money. In other words, by sharing the road data error analysis results of a number of user terminals, and considering the type and version of the navigation terminal and the map, the additional computing burden of the server can be alleviated, and the road data error detection and correction can be made more efficient. Has an effect. In addition, more detailed analysis is possible through the error analysis on the user terminal side and the final analysis on the server side, thereby minimizing the burden of visit due diligence. In addition, the present invention can display a warning message tailored to the user terminal even before the navigation map is updated to the latest version or before the error of the road data is corrected or confirmed, thereby enabling safer vehicle driving or walking. Effect.

Description

A method for correcting errors in road data of the navigation map}

The present invention relates to a road data error correction method of a navigation map, and more specifically, to analyze road departure information and road departure information stored in a user terminal having a navigation function, collect errors of road data, and investigate a suspected area of error. The present invention relates to a method of correcting a road map error of a navigation map which modifies a navigation map and displays a warning message on a user terminal before the error correction.

Various terminals are used according to the development of internet and wired / wireless communication technology. Most of these terminals are mobile terminals that can be used while moving, and are being developed differently every day so that they can be used in various situations such as offices, vehicles, airplanes, and walking environments.

Representative terminals include navigation terminals and mobile phones. In addition, PDAs (Personal Digital Assistants), MIDs (Mobile Internet Devices), PMPs (Portable Multimedia Players), MP3Ps (MP3 Players), electronic dictionaries, and tablets. Various terminals such as tablet PCs, laptops and netbooks are being used. In addition, recently released navigation terminal or smart phone (smart phone) has a processor that is comparable to a personal computer and can use a wireless communication or a wireless network to implement a variety of functions regardless of the location.

Meanwhile, a navigation function or a location-based service (LBS) frequently used in a mobile terminal provides various services based on a navigation map mounted on a user terminal, and thus a road displayed on the navigation map. The accuracy of the data is very important. If the data on the navigation map is updated from time to time to reflect the changes, it cannot provide a satisfactory service to the user.

For this reason, the makers of navigation maps mounted on user terminals have invested a lot of time and money to provide reliable map information to users at all times. In particular, the road data included in the navigation map is very important when providing a route guidance function, so information on road changes and new constructions must be frequently identified and updated quickly. For this purpose, the creator of the navigation map visits the actual site and collects and corrects the errors of the road data due to the change of the road and the new construction.However, the due diligence method requires a lot of time and cost, and the time required for updating It is too long to meet the needs of users.

In order to solve this problem, the prior art provides a plurality of GPS (Global Positioning System) information to a route providing server when navigating a destination route in a navigation device, or provides a plurality of GPS information according to a movement route to a server in a test device. For example, a route providing server or a server generates a search trajectory and compares the search trajectory with the stored map information. If the information corresponding to the search trajectory is not stored in the map information, it is registered as a survey candidate to identify an error point of the road network. .

However, the problem of the prior art as described above is to determine the error point centered on the server, it is not efficient to identify the error point of the road. That is, it is always necessary to generate a search trajectory on the server side and compare it with the stored map information, so it may take unnecessary time and effort to collect and correct errors in the road data. Although the performance of the user terminal has been greatly improved, since the terminal simply transmits only GPS information to the server, there is a disadvantage in that it cannot use excellent hardware and software resources.

Accordingly, an object of the present invention is to provide a site visit due diligence method that requires enormous time and cost to correct road data errors in a navigation map, and a method of complementing an inefficient server-centered road data error point identification method. will be. That is, the problem of the present invention is to fully utilize the function of the user terminal having excellent hardware and software resources, save unnecessary time and cost required to identify the server-centered error, and to limit the site of error suspect through more detailed analysis It is to provide a road data error correction method that minimizes the burden of due diligence. In addition, an object of the present invention is to provide a road data error correction method for ensuring the safety of the vehicle driving or walking even before the road data error correction by displaying the road error suspected area on the user terminal.

In order to solve the above technical problem, the present invention provides a first step of storing a map error log file in a user terminal and analyzing the map error log file to classify and store suspected road data error areas; A second step of transmitting the map error log file to a server; A third step of analyzing the map error log file in the server; A fourth step of displaying a warning message on a user terminal when driving on the suspected road data error area; A road map error correction method of a navigation map including a fifth step of correcting a navigation map error and updating a map on a user terminal is provided.

In addition, the present invention is the first step to turn on the user terminal, and activate the navigation function; Determining whether the vehicle is traveling or walking according to the route guidance of the destination route search result; In step 1-3, if the determination is made in step 1-2, the method further comprises: storing, in the map error log file, information related to a departure from a predetermined path or driving or walking in an area other than a road on a map; A first to fourth step of storing, in the map error log file, relevant information when driving or walking an area other than a road on a map if 'NO' is determined in the first to second steps; Analyzing the map error log file and repeatedly departing the route more than a predetermined number of times in the same traveling direction within a driving range or walking range of a predetermined size and classifying it as a 'road change suspected area' and storing it in the map error log file. Steps 1-5; Analysis of the map error log file and repeatedly driving or walking an area other than a road on a map within a driving range or a walking range of a predetermined size repeatedly occurs more than a predetermined number of times. Including the first to sixth step of storing in a log file, wherein the related information is based on the GPS (Global Positioning System) coordinate information based on location information, road identification information, driving direction, driving according to the route guidance of the destination route search results Or whether it is walking or not, wherein the driving range or walking range of the predetermined size, the predetermined number of times can be arbitrarily designated by the user, or can be designated in consideration of the error detection probability of statistical road data. The map error log file stores additional information for analysis on the server, but the additional information is navigable. A map type and version, includes manufacturer, product number of the navigation terminal navigation map, after the second step 1-6, a second step of transmitting the map error log file to the server; A third step of analyzing the map error log file in the server; A fourth step of displaying a warning message on the user terminal when the road data error suspected area is driven; And a fifth step of correcting a navigation map error and updating a map on a user terminal, wherein the third step includes comprehensively considering the map error log file and the additional information transmitted from the user terminal in the server. Steps 3-1 for determining whether further analysis is required for Esau and steps 3-2 for determining whether a detailed investigation is needed for the suspected road data error area, and further analysis is required in Step 3-1. If it is determined that the step, the server comprises analyzing the map error log file step 3-3, the step 3-3 is repeated a predetermined number of times or more in the same traveling direction in the driving range or walking range of a predetermined size Steps 3-4 to pre-specify when the route is separated by the 'road suspected area to be divided' and store in the map error log file Steps 3 to 5 when the driving or walking area that is not a road on the map within the driving range or the walking range of the plane occurs repeatedly for a predetermined number of times or more and is divided into a 'rogue suspected area' and stored in the map error log file The driving range or walking range of the predetermined size, the predetermined number of times may be arbitrarily designated by the user, or may be specified in consideration of the probability of error detection of statistical road data, and the fourth step may be performed by the user terminal. The navigation map is displayed in the latest version by displaying a warning message when driving the suspected road data error area detected by the analysis, or by transmitting information on the suspected road data error area corresponding to the version of the navigation map mounted on the user terminal to the user terminal. Fix errors in road data or before updating to A warning message is displayed in a customized manner in a user terminal environment, and the fifth step is a road data error on the navigation map through a visit due diligence or a satellite photo survey of the 'rogue suspected road change area' and the 'rogue suspected road area'. And updating the navigation map of the user terminal with a version in which the error of the road data is corrected.

According to the present invention, by performing an analysis for detecting an error of road data in a user terminal, it is possible to detect and correct an error of road data more efficiently than in the prior art of identifying a road error point only on a server. Has the effect of saving unnecessary time and money. In addition, more detailed analysis is possible through the error analysis on the user terminal side and the final analysis on the server side, thereby minimizing the burden of visit due diligence by relatively precisely limiting the suspected area of the road data.

The present invention determines whether additional analysis is necessary through the final analysis on the server side, and determines whether or not a detailed investigation of the road data is required, so that customized analysis according to various usage environments such as user terminal type and navigation map version is performed. By sharing the road data error analysis results of numerous user terminals, and considering the type and version of the navigation terminal and the map, the additional computing burden of the server can be alleviated, and the road data error detection and correction can be made more efficient. Has the effect.

According to the present invention, even when the navigation map is updated to the latest version or before the error of the road data is corrected or confirmed, the warning message can be displayed on the user terminal in a customized manner, so that the vehicle can be safely driven or walked. Have

1 is a view for explaining a road data error correction method of the navigation map according to an embodiment of the present invention.
2 is a flowchart illustrating a road data error correction method of a navigation map according to an embodiment of the present invention.
3 is a detailed flowchart of the step S1 of FIG.
4 is a detailed flowchart of step S3 of FIG.
5 is a detailed flowchart of step S5 of FIG.
6 is an example of a terminal used in the road data error correction method of the navigation map according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

1 is a view illustrating a road data error correction method of a navigation map according to an embodiment of the present invention. The navigation apparatus of the present invention may be a vehicle navigation terminal or a walking navigation terminal, that is, a smartphone or a mobile phone. The navigation terminal receives a GPS signal for calculating position coordinates from the GPS satellites, and performs navigation route guidance using the navigation signal. The navigation terminal uses its own hardware and software resources to create a map error log file for analyzing road data errors, analyze the map error log files, and detect road data errors in the navigation map through an accessible communication network or network. Send various data to modify to server. Here, the communication method between the navigation terminal and the server is connected to a 3rd generation (3G) communication network, a Long Term Evolution (LTE) network, a Wibro network, etc. using tethering through a mobile phone. Or a case in which the navigation terminal communicates with its own communication module. The server analyzes the final map error log file based on the information transmitted from the navigation device (including the type and version of the map, etc.), classifies and stores suspected road error areas, and based on this information. Visit due diligence or satellite image inspection corrects road data errors on the navigation map.

2 is a flowchart illustrating a road data error correction method of a navigation map according to an embodiment of the present invention. Referring to FIG. 2, in the road data error correcting method of a navigation map according to an embodiment of the present invention, storing the map error log file in a user terminal (S1 of FIG. 2), transmitting the map error log file to a server. Step (S2 of FIG. 2), analyzing the map error log file in the server (S3 of FIG. 2), displaying a warning message to the user terminal when driving the road error suspected area before the road data error correction (S4 of FIG. ), Correcting the error of the navigation map and updating the map on the user terminal with the map of which the error of the road data is corrected (S5 of FIG. 2).

A detailed step of step S1 of FIG. 2 will be described with reference to FIG. 3. Step S1 is a step of turning on the user terminal, activating the navigation function (S11 of FIG. 3), searching for a destination through input of a search word, and determining whether the vehicle is driving or walking according to the route guidance of the destination route search result (FIG. S12 of 3), if it is determined to be 'YES' in step S12, proceeds to step S13, and stores related information in a map error log file when the vehicle deviates from a predetermined route or drives or walks on an area other than a road on a map ( In step S13 of FIG. 3 and step S12, if it is 'NO', the process proceeds to step S14 to store related information when driving or walking an area other than a road on the map in a map error log file (S14 in FIG. 3). ). The related information may include location information based on GPS coordinate information, road identification information, direction of travel, whether driving or walking according to a route guide of a result of a destination route search. In addition, the step S1 may include analyzing a map error log file by using hardware and software resources of the user terminal, which step may be repeatedly repeated more than a predetermined number of times in the same traveling direction within a driving range or walking range of a predetermined size. In the case of leaving the road, the step is divided into the suspected road change area (S15 in FIG. 3), and the driving or walking in an area other than the road on the map within the driving range or the walking range of a predetermined size is repeated a predetermined number of times or more. If it occurs, the step of storing divided by 'the road suspected region' (S16 of FIG. 3). Herein, the driving range or walking range of the predetermined size or the predetermined number of times may be arbitrarily designated by the user, for example, 30 meters or 15 times, respectively. It may be specified by analyzing statistical data to increase the probability. In addition, the map error log file stores information such as 'Road suspected area to change' and 'Road suspected area to be generated' by analyzing the map error log file along with the existing information, and additional information necessary for the final analysis on the server. Is added further. The additional information may include, for example, the type and version of the navigation map, the manufacturer of the navigation map, the navigation terminal product number, and the like, which may be stored in a new file other than the map error log file. As described above, in the present invention, the user terminal performs an analysis for detecting an error of road data, and thus it is possible to detect and correct an error of road data more efficiently in terms of time and cost than in the prior art of identifying a road error point only in a server. . Recently released user terminal considering the performance of the central processing unit or memory, the operation and processing speed of the data is very excellent, and the analysis of the map error log file can be performed in the time zone when the terminal is not used, the present invention is You can save unnecessary time and money when identifying server-centric errors.

Next, in step S2 of FIG. 2, the map error log file is transmitted to the server. The map error log file includes information analyzed by the user terminal and the additional information described above. The transmission in step S2 is automatically transmitted to the server at regular intervals through a communication network or a network to which a user terminal is accessible, or a personal computer connected to the Internet using a storage medium in which a map error log file is stored for a user to update a map. PC) is automatically transmitted to the server when connected. Such a transmission method includes a Bluetooth or Wi-Fi module embedded in a navigation device and a 3G communication network connected to a mobile phone, or a 3G communication module embedded in the navigation device itself and stored in the navigation device. Map error log file is automatically transmitted to the analysis server at regular intervals. In addition, when a user connects a storage medium such as a SD card (Secure Digital Card) or a USB (Universal Serial Bus) memory to which a map error log file is stored to update a map, the server automatically transmits the data to the server. It includes.

Next, step S3 of FIG. 2 will be described with reference to FIG. 4. Step S3 is a step of analyzing the map error log file in the server, and basically the same as step S15 and step S16 of FIG. However, in this step, the final analysis is performed considering all the additional information transmitted from the user terminal. That is, along with the suspected road data error region analyzed by the user terminal, whether it is driving or walking according to the location information based on the GPS coordinate information, the road identification information, the driving direction, the route guidance of the destination route search result, and the navigation map. By comprehensively considering the type and version, the manufacturer of the navigation map, the navigation device product number, and the like, it is determined whether further analysis is required on the server, and whether or not a detailed investigation is required for the suspected road data error area. Through the final analysis on the server side, customized analysis according to various usage environments such as user terminal type and navigation map version is possible. By sharing the road data error analysis results of numerous user terminals and considering the type and version of the navigation terminal and the map, the additional computing burden of the server can be alleviated, and the road data error detection and correction can be performed more efficiently.

Step S4 of FIG. 2 is a step of displaying a warning message, and displays a warning message when driving a suspected road data error region detected as a result of a self-analysis on the user terminal side, or the road data corresponding to a version of a navigation map mounted on the user terminal on the server side. By transmitting the information on the suspected area to the user terminal, it is possible to display a warning message tailored to the user terminal environment even before the navigation map is updated to the latest version or before the error of the road data is corrected or confirmed. This enables the user to drive or walk more safely.

Step S5 of FIG. 2 will be described with reference to FIG. 5. Step S5 corrects road data errors on the navigation map by visiting due diligence or surveying satellite photographs of the suspected road change area and the suspected road generation area (S51 of FIG. 5), and the road of the navigation map of the user terminal. Updating the error of the data to the corrected version (S52 of FIG. 5).

Referring to FIG. 6, a terminal used in a road data error correction method of a navigation map according to an embodiment of the present invention may be connected to a mobile communication network or a wired / wireless network to transmit and receive data, and a network connection unit 100 and a memory unit 110. The storage unit 120 stores a map error log file, a control unit 130, a display unit 140, an audio output unit 150 for outputting audio, and a user input unit 160. The controller 130 generates and analyzes a map error log file, and the network connection unit 100 transmits the map error log file to a server. The storage unit 120 may use a variety of storage devices that can be built or external to the terminal, for example, SD card, Flash Memory, SSD (Solid State Drive), HDD (Hard Disc Drive), USB memory etc. are mentioned. In addition, although reference numbers are not indicated in the drawings, the terminal includes a GPS antenna for receiving a GPS signal.

100: wireless communication unit or network connection unit
110: memory unit
120:
130:
140: display unit
150: audio output
160: user input unit

Claims (10)

Storing a map error log file in a user terminal, analyzing the map error log file, and classifying and storing a suspected road data error region;
A second step of transmitting the map error log file to a server;
A third step of analyzing the map error log file in the server;
Displaying a caution message on a user terminal when driving or walking in the suspected road data error area;
A fifth step of correcting a navigation map error and updating a map on a user terminal;
To correct road data errors in a navigation map that includes a. The method of claim 1,
The first step
Step 1-1 of turning on the user terminal and activating a navigation function;
Determining whether the vehicle is traveling or walking according to the route guidance of the destination route search result;
In step 1-3, if the determination is made in step 1-2, the method further comprises: storing, in the map error log file, information related to a departure from a predetermined path or driving or walking in an area other than a road on a map;
A first to fourth step of storing, in the map error log file, relevant information when driving or walking an area other than a road on a map if 'NO' is determined in the first to second steps;
Including, the related information is
Correcting the road data error of the navigation map including one or more of position information based on GPS (Global Positioning System) coordinate information, road identification information, driving direction, whether driving or walking according to the route guidance of the destination route search result Way. The method of claim 2,
After steps 1-3 and 1-4, step 1-5, wherein the user terminal analyzes the map error log file;
Steps 1-5
A first step (6) of dividing the route into a map error log file when the route is repeatedly departed for a predetermined number of times in the same traveling direction or within the walking range of a predetermined size;
When driving or walking an area other than a road on a map within a driving range or a walking range of a predetermined size repeatedly occurs more than a predetermined number of times, the first and second points are stored in the map error log file by dividing it into a suspected road generation area. Step 7;
And a driving range or walking range of the predetermined size, and the predetermined number of times may be arbitrarily designated by a user, or may be specified in consideration of an error detection probability of statistical road data. The method of claim 3,
The map error log file stores additional information for analysis on the server, wherein the additional information includes a navigation map type and version, a manufacturer of the navigation map, and a navigation terminal product number. . The method of claim 2,
In the second step of transmission, the map error log file is automatically transmitted to the server at regular intervals through a communication network or a network to which a user terminal can be connected, or the user can access a storage medium on which a map error log file is stored for updating the map. And a method of automatically transmitting a road data error to the server when the connected personal computer is connected. 5. The method of claim 4,
In the third step, the map error log file transmitted from the user terminal and the additional information are comprehensively considered.
Steps 3-1 to determine if further analysis is needed on the server
3 to 2 step of determining whether or not a detailed investigation is necessary for the suspected area of the road data,
If it is determined in step 3-1 that further analysis is necessary, step 3-3 of analyzing the map error log file in the server,
Steps 3-3
Step 3-4 of dividing the route repeatedly by a predetermined number of times in the same traveling direction within the driving range or walking range of a predetermined size and storing it in the map error log file by dividing it into a suspected road change region;
When driving or walking an area other than a road on a map within a predetermined range of driving or walking range occurs repeatedly for a predetermined number of times, the third step of dividing it into a suspected road generation area and storing it in the map error log file 3- Step 5;
And a driving range or walking range of the predetermined size, and the predetermined number of times may be arbitrarily designated by a user, or may be specified in consideration of an error detection probability of statistical road data. The method of claim 2,
The fourth step is
Output warning message when driving or walking in suspected road data error area
The server side transmits the information on the suspected road data error region corresponding to the version of the navigation map mounted on the user terminal to the user terminal before the navigation map is updated to the latest version or before the error of the road data is corrected. How to fix road data errors in navigation maps with custom prompts in The method of claim 2,
The fifth step
Correcting a road data error on a navigation map through a visit due diligence or satellite photograph survey on the suspected road data error area;
Updating the navigation map of the user terminal with a version in which an error of road data is corrected;
To correct road data errors in a navigation map that includes a. The method of claim 3,
The fifth step
Correcting a road data error on a navigation map through a visit due diligence or a satellite photo survey of the suspected road change suspected area and the suspected road generation suspected area;
Updating the navigation map of the user terminal with a version in which an error of road data is corrected;
To correct road data errors in a navigation map that includes a. Step 1-1 of turning on the user terminal and activating a navigation function;
Determining whether the vehicle is traveling or walking according to the route guidance of the destination route search result;
In step 1-3, if the determination is made in step 1-2, the method further comprises: storing, in the map error log file, information related to a departure from a predetermined path or driving or walking in an area other than a road on a map;
A first to fourth step of storing, in the map error log file, relevant information when driving or walking an area other than a road on a map if 'NO' is determined in the first to second steps;
Analyzing the map error log file and repeatedly departing the route more than a predetermined number of times in the same traveling direction within a driving range or walking range of a predetermined size and classifying it as a 'road change suspected area' and storing it in the map error log file. Steps 1-5;
Analysis of the map error log file and repeatedly driving or walking an area other than a road on a map within a driving range or a walking range of a predetermined size repeatedly occurs more than a predetermined number of times. First to sixth steps of storing in a log file;
Including but not limited to:
The relevant information
Includes at least one of position information, road identification information, driving direction, driving or walking according to the route guidance of the destination route search result based on GPS (Global Positioning System) coordinate information,
The driving range or the walking range of the predetermined size and the predetermined number of times may be arbitrarily designated by the user, or may be designated in consideration of an error detection probability of statistical road data.
The map error log file stores additional information for analysis on the server, wherein the additional information includes the type and version of the navigation map, the manufacturer of the navigation map, and a navigation terminal product number.
A second step of transmitting the map error log file to the server after the first to sixth steps;
A third step of analyzing the map error log file in the server;
Displaying a caution message on a user terminal when driving or walking in a road data suspected area;
A fifth step of correcting the navigation map error and updating the map on the user terminal,
The third step is
By comprehensively considering the map error log file and the additional information transmitted from the user terminal in the server,
Steps 3-1 to determine if further analysis is needed on the server
3 to 2 step of determining whether or not a detailed investigation is necessary for the suspected area of the road data,
If it is determined in step 3-1 that further analysis is necessary, step 3-3 includes analyzing the map error log file by the server.
Steps 3-4, in the case of repeatedly departing the route more than a predetermined number of times in the same traveling direction or within the walking range of a predetermined size, classify the suspected road change region and store it in the map error log file.
When driving or walking an area other than a road on a map within a predetermined range of driving or walking range occurs repeatedly for a predetermined number of times, the third step of dividing it into a suspected road generation area and storing it in the map error log file 3- It includes five steps, the driving range or walking range of the predetermined size, the predetermined number of times can be arbitrarily designated by the user, or can be specified in consideration of the probability of error detection of statistical road data,
The fourth step is
The user terminal outputs a caution message when driving or walking in the suspected road data error area as a result of analysis by the user terminal, or provides information on the suspected road data error area corresponding to the version of the navigation map mounted on the user terminal at the server side. By sending to, the caution message is tailored to the user's environment before the navigation map is updated to the latest version or before any errors in the road data are corrected.
The fifth step
Correcting a road data error on a navigation map through a visit due diligence or satellite photo survey of the suspected road change area and the suspected road generation area, and correcting an error of road data on a navigation map of a user terminal; Updating to a version;
To correct road data errors in a navigation map that includes a.

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