JP6842493B2 - Map data update device, map data update method, map data generation method, map data update program - Google Patents

Description

The present invention relates to a map data update device for updating electronic map data, a map data update method, a map data generation method, and a map data update program.

As a technique for updating map data, for example, the techniques described in Patent Documents 1 to 3 are known. The technology of Patent Document 1 can create an electronic map of the entire country, arrange the house name in the maximum size according to the individual house frame size, and make it easy for the user to identify the house name, and graphic information and attribute information. Provides a method of creating and updating an electronic map that can be updated independently and asynchronously. The abstract of Patent Document 2 states, "The national map data is divided into a plurality of blocks, each block is divided into a plurality of meshes, each block has all mesh management information, and a part of the national map data is entirely. The mesh management information is used to update the data in mesh units, and the data between meshes with different update histories are associated and connected using the two-dimensional coordinate value plus alpha key corresponding to latitude and longitude. ] Is shown. In the summary of Patent Document 3, "The method of updating the map database includes a step of acquiring road construction information related to road construction (S101) and a step of storing the construction section specified by the road construction information (S103, 104). From the step (S105) for determining whether or not the road construction has been completed, the step (S106) for presenting an update menu indicating a plurality of road types when it is determined that the road construction has been completed, and the update menu. It has a step (S107, S108) of updating the link data corresponding to the construction section stored in the storage means based on the selected road type. ] Is shown.

JP-A-11-242430 Japanese Unexamined Patent Publication No. 2003-337026 Japanese Unexamined Patent Publication No. 2007-85838

However, there is a problem that the prior art cannot accurately correspond the existing map data with the data of the part to be updated. For example, since the position measurement by GPS (Global Positioning System) contains an error, if the map data is updated based only on the GPS position information of the data of the part to be updated, it will not be updated. Problems such as the road shifting at the connection with the section occur.

An object of the present invention is to provide a technique capable of easily associating update drawing data, which is data of a portion to be updated, with map data.

The map data update device of the present invention updates the map data using the update drawing data which is the data for updating a part of the map data. The map data includes reference manhole information having at least manhole location information. The update drawing data includes update manhole information having position information that shows the relative position of the manhole included in the map data. The map data updating device includes an adjusting unit and an updating unit. The adjusting unit adjusts the position and orientation of the update drawing data with respect to the map data so that the position of the manhole included in the update drawing data matches the position of the manhole included in the map data. The update unit updates the map data with the position-adjusted update drawing data.

The map data generation method of the present invention executes a manhole information acquisition step, a relative position acquisition step, and a reference information addition step. The manhole information acquisition step acquires equipment manhole information from an equipment data recording unit that records equipment manhole information, which is information having identification information for identifying a manhole and position information indicating latitude and longitude. The relative position acquisition step obtains the relative position of the manhole specified by the equipment manhole information with respect to the point having the information indicating the latitude and longitude on the map data. The reference information addition step corrects the position information indicating the latitude and longitude of the equipment manhole information based on the relative position to obtain the reference manhole information, and adds the reference manhole information to the map data.

For features with underground structures such as manholes, the latitude and longitude do not change even if road works such as expansion work are carried out unless the work is carried out to move the position consciously. According to the map data update device, the map data update method, and the map data update program of the present invention, the position and orientation of the update drawing data with respect to the map data are adjusted based on the manhole where the latitude and longitude hardly change. , Can be easily matched (position and orientation match). Further, according to the map data generation method of the present invention, the map data update device, the map data update method, and the map data update program of the present invention can be used by using the equipment data including the information about the manhole. Data can be generated.

The figure which shows the structural example of the map data update apparatus, the map data recording unit, and the drawing data recording unit for update of this invention. The figure which shows the processing flow example of the map data update method of this invention. The figure which showed the example of the relationship between a road and a manhole before road construction. The figure which showed the example of the relationship between a road and a manhole after road construction. The figure which shows the configuration example of the manhole information addition device, the map data recording unit, and the equipment data recording unit. The figure which shows the processing flow example of the map data generation method.

Hereinafter, embodiments of the present invention will be described in detail. The components having the same function are given the same number, and duplicate explanations will be omitted.

<Map data update device, map data update method, map data update program>
FIG. 1 shows a configuration example of a map data updating device, a map data recording unit, and a drawing data recording unit for updating of the present invention, and FIG. 2 shows an example of a processing flow of the map data updating method of the present invention. The map data update device 100 includes an adjustment unit 110 and an update unit 120, and updates the map data using update drawing data which is data for updating a part of the map data. The map data update program of the present invention makes a computer function as a map data update device.

The map data includes in advance reference manhole information having at least manhole position information (S200). A specific example of such a map data generation method will be described later. The "position information" contained in the reference manhole information is preferably information indicating latitude and longitude, but may be position information relative to a point in the map data. The map data recording unit 200 includes a computer-readable recording medium on which map data is recorded. The map data recording unit 200 may exist inside the map data updating device 100, or may be connected to the map data updating device 100 via a network. It is desirable that some of the reference manhole information also has identification information for identifying the manhole. However, it is not essential for the present invention.

The update drawing data includes update manhole information having position information that shows the relative position of the manhole included in the map data (S300). For the update drawing data, for example, the completed drawing at the time of completion of the road construction may be used, and the position of the manhole may be included in the completed drawing by surveying. GPS may be used in this survey, but it is sufficient if the position information that shows the relative positions of the manholes can be obtained by a general survey. The update drawing data recording unit 300 includes a computer-readable recording medium on which the update drawing data is recorded. The update drawing data recording unit 300 may exist inside the map data update device 100, or may be connected to the map data update device 100 via a network. It is desirable that some of the update manhole information also has identification information for identifying the manhole. However, it is not essential for the present invention.

The adjustment unit 110 adjusts the position and orientation of the update drawing data with respect to the map data so that the position of the manhole included in the update drawing data matches the position of the manhole included in the map data ( S110).

The processing of the adjusting unit 110 will be described more specifically. If at least one of the update manhole information also has identification information and the reference manhole information about the manhole also has identification information, the update drawing data includes two of the map data. Update manhole information having position information that shows the relative positions of the above manholes is included. Then, the manholes having the same identification information identify the manholes and match the positions, and the manholes without the identification information match the positions without specifying the manholes. In this way, when there is reference manhole information and update manhole information in which the identification information matches, if the relative positions of the two or more manholes are known, the adjustment unit 110 determines the position and orientation of the update drawing data. It can be adjusted to correspond to the map data. If there are two or more manholes with the same identification information, adjustment of the magnification of the update drawing data may be included.

If the update manhole information does not have identification information that identifies the manhole, or if at least one of the update manhole information also has identification information, but the reference manhole information for the manhole does not have identification information. The update drawing data includes update manhole information having position information that shows the relative positions of three or more manholes included in the map data. Then, the adjusting unit 110 adjusts the position and orientation of the update drawing data so that the positions match without specifying the manhole.

The update unit 120 updates the map data with the position-adjusted update drawing data and records it in the map data recording unit 200 (S120). When the position information of the reference manhole information is information indicating latitude and longitude, the update unit 120 indicates latitude and longitude with respect to the updated map data based on the information indicating latitude and longitude of the reference manhole information. Information may be added. For example, when the position of the curb on the road is moved due to expansion work, the latitude / longitude information indicating the position of the curb is the information indicating the relative position to the manhole specified by the reference manhole information of the curb and the latitude / longitude of the reference manhole information. It may be obtained based on.

FIG. 3 is a diagram showing an example of the relationship between the road and the manhole before the road construction, and FIG. 4 is a diagram showing an example of the relationship between the road and the manhole after the road construction. FIG. 3 shows the intersection of the road 901 and the road 902, and FIG. 4 shows the same intersection when the road 902 is expanded to become the road 903. The positions of the manholes 910, 911, 912 and 913 have not changed. With the road expansion work, the curb 904 has moved to the position of the curb 905. If at least two or three of the manholes 910, 911, 912, and 913 are included in the update drawing data as the update manhole information, the adjustment unit 110 and the update unit 120 can be processed. In addition, the update unit 120 can also register the latitude and longitude information indicating the position of the curb 905 in the map data. As described above, a computer-readable recording medium on which the map data updated by the map data updating method of the present invention is recorded is manufactured.

For map data that indicates road boundaries, the accuracy is determined by the accuracy of the survey. GPS surveying includes an error of several tens of centimeters to several meters. Therefore, if the map data measured by GPS is simply connected by dividing into a plurality of sections, there is a problem that the road boundaries are not continuous at the connecting portion of the sections. When creating new map data, high-precision GPS surveying is performed and the latitude and longitude of each section are corrected so that the road boundaries are continuous. In the subsequent update of the map data, the area where the road construction was carried out will be updated based on the completed map at the time of completion. However, since there is an error in GPS, even if the latitude and longitude information measured by GPS is added to the completed map, the position and orientation cannot be matched with the map data with sufficient accuracy.

Therefore, in the present invention, we focused on manholes. For features with underground structures such as manholes, the latitude and longitude do not change even if road works such as expansion work are carried out unless the work is carried out to move the position consciously. In addition, since there are manholes for communication, electric power, water supply, sewerage, etc., there are usually three or more manholes within the range where road construction is carried out. Therefore, according to the map data update device, the map data update method, and the map data update program of the present invention, the position and orientation of the update drawing data with respect to the map data are adjusted based on the manhole where the latitude and longitude hardly change. Therefore, the map data and the drawing data for update can be easily matched (position and orientation are matched). Therefore, it is possible to easily adjust the boundary of the road or the like so as to be continuous at the connecting portion between the section not to be updated and the section to be updated. In addition, conventionally, the update drawing is created only with relative position information, then a control point is set in the update drawing, GPS surveying of the control point is performed, and the update drawing is based on the survey result. It is common to associate it with a map. However, if the map data update device, the map data update method, and the map data update program of the present invention are used, the update drawing data is made to correspond to the map data at the position of the manhole, so that GPS survey of the control point can be eliminated.

<Map data generation method>
FIG. 5 shows a configuration example of the manhole information addition device, the map data recording unit, and the equipment data recording unit, and FIG. 6 shows an example of the processing flow of the map data generation method. The manhole information addition device 500 is connected to the map data recording unit 200 and the equipment data recording unit 400 via a network. The manhole information addition device 500 includes at least a manhole information acquisition unit 210, a relative position acquisition unit 220, a reference information addition unit 230, and may also include a generation information addition unit 240.

The equipment data recording unit 400 includes a computer-readable recording medium on which equipment data is recorded. The equipment data is, for example, data related to communication equipment (manholes, utility poles, cables, etc.), data related to water supply equipment (manholes, pipelines, etc.), and the like. However, in the present invention, the equipment data may include equipment manhole information which is information having identification information for identifying the manhole and position information indicating latitude and longitude. That is, it is sufficient for the equipment data recording unit 400 to record information including equipment manhole information, which is information having identification information for identifying a manhole and position information indicating latitude and longitude. The map data recording unit 200 includes a computer-readable recording medium on which map data is recorded. The manhole information acquisition unit 210 acquires equipment manhole information from the equipment data recording unit 400 (S210: manhole information acquisition step).

The relative position acquisition unit 220 acquires the relative position of the manhole specified by the equipment manhole information with respect to the point having the information indicating the latitude and longitude on the map data (S220: relative position acquisition step). "Points having information indicating latitude and longitude on map data" are, for example, points indicating the center point of each section of map data, points at the four corners of the section, and points indicating the position of a feature as a reference. It means that information indicating latitude and longitude is registered. If the position of the same point as the point where the map data holds the information indicating latitude and longitude can be specified on the equipment data, the relative position acquisition unit 220 can identify the point and the manhole on the equipment data. The relative position may be obtained. If the location of the same point as the point where the map data holds the information indicating latitude and longitude cannot be specified on the equipment data, the worker can manually perform the survey on the equipment data or the actual survey result at the site. The relative position may be obtained from the above, and the relative position acquisition unit 220 may acquire the relative position obtained by the operator. Further, if the map data has information indicating the latitude and longitude of the manhole position specified by the equipment manhole information, the relative position may be none (zero).

The reference information addition unit 230 corrects the position information indicating the latitude and longitude of the equipment manhole information based on the acquired relative position to obtain the reference manhole information, and adds the reference manhole information to the map data (S230: reference information addition step). ). In "correct the position information indicating the latitude and longitude", it may be replaced with the latitude and longitude on the map data. For example, the latitude / longitude may be obtained by adding or subtracting the relative position obtained by the relative position acquisition unit 220 to the latitude / longitude of a point having information indicating the latitude / longitude on the map data.

If a sufficient number of manhole information can be registered in the processes from steps S210 to S230, the process up to this point may be completed. A sufficient number of registrations is such that two or more standard manhole information is always included in the range that is expected to be updated due to road construction or the like. If a sufficient number of manhole information has not been registered in the processes from steps S210 to S230, the generation information addition step S240 may be executed.

Specifically, for a manhole without reference manhole information, reference manhole information having position information obtained based on the relative position with the manhole added in the reference information addition step S230 was generated and generated in map data. Reference manhole information is added (S240: generation information addition step). The processes of steps S210 to S230 are processes based on equipment data. If it is a telecommunications company, it has data on communication equipment. In addition, even equipment that is not related to communication may have some information on equipment of other companies in the vicinity. However, it is unlikely that one piece of equipment data holds information for all manholes. Therefore, even if the processes of steps S210 to S230 are performed, there are manholes for which there is no reference manhole information. Therefore, based on the survey results at the site, the relative position of the manhole for which there is no reference manhole information is obtained with respect to the manhole added in the reference information addition step S230. Then, the generation information addition unit 240 may generate the reference manhole information having the position information obtained based on the relative position, and add the generated reference manhole information to the map data.

The processes from steps S210 to S230, or the process to which step S240 is added, corresponds to the process of adding reference manhole information to the map data of FIG. 2 (S200: map data generation method). By this process, a computer-readable recording medium on which map data including reference manhole information is recorded can be manufactured. According to the map data generation method of the present invention, the map data update device, the map data update method, and the map data update program of the present invention can be used by using the equipment data including the information about the manhole. Can be generated.

[Program, recording medium]
The various processes described above are not only executed in chronological order according to the description, but may also be executed in parallel or individually as required by the processing capacity of the device that executes the processes. In addition, it goes without saying that changes can be made as appropriate without departing from the spirit of the present invention.

Further, when the above configuration is realized by a computer (processing circuit), the processing contents of the functions that each device should have are described by a program. Then, by executing this program on a computer, the above processing function is realized on the computer.

The program describing the processing content can be recorded on a computer-readable recording medium. The computer-readable recording medium may be, for example, a magnetic recording device, an optical disk, a photomagnetic recording medium, a semiconductor memory, or the like.

Further, the distribution of this program is performed, for example, by selling, transferring, renting, or the like a portable recording medium such as a DVD or CD-ROM in which the program is recorded. Further, the program may be stored in the storage device of the server computer, and the program may be distributed by transferring the program from the server computer to another computer via a network.

A computer that executes such a program first, for example, first stores a program recorded on a portable recording medium or a program transferred from a server computer in its own storage device. Then, when the process is executed, the computer reads the program stored in its own recording medium and executes the process according to the read program. Further, as another execution form of this program, a computer may read the program directly from a portable recording medium and execute processing according to the program, and further, the program is transferred from the server computer to this computer. Each time, the processing according to the received program may be executed sequentially. In addition, the above processing is executed by a so-called ASP (Application Service Provider) type service that realizes the processing function only by the execution instruction and result acquisition without transferring the program from the server computer to this computer. May be. The program in this embodiment includes information to be used for processing by a computer and equivalent to the program (data that is not a direct command to the computer but has a property of defining the processing of the computer, etc.).

Further, in this embodiment, the present device is configured by executing a predetermined program on the computer, but at least a part of these processing contents may be realized by hardware.

100 Map data update device 110 Adjustment unit 120 Update unit 200 Map data recording unit 210 Manhole information acquisition unit 220 Relative position acquisition unit 230 Reference information addition unit 240 Generation information addition unit 300 Update drawing data recording unit 400 Equipment data recording unit 500 Manhole Information addition device 901,902,903 Road 904,905 Edge stone 910, 911, 912,913 Manhole

Claims (8)

A map data updating device for updating map data using update drawing data, which is data for updating a part of the map data.
The map data includes reference manhole information having at least manhole position information.
The update drawing data includes update manhole information having position information that shows the relative positions of two or more manholes included in the map data.
An adjustment unit that adjusts the position and orientation of the update drawing data with respect to the map data so that the position of the manhole included in the update drawing data matches the position of the manhole included in the map data. When,
An update unit that updates the map data with the position-adjusted update drawing data,
With
Some of the reference manhole information and the update manhole information also have identification information that identifies the manhole.
A map data updating device, characterized in that at least one of the updating manhole information also has identification information, and the reference manhole information about the manhole also has identification information. A map data updating device for updating map data using update drawing data, which is data for updating a part of the map data.
The map data includes reference manhole information having at least manhole position information.
The update drawing data includes update manhole information having position information that shows the relative positions of three or more manholes included in the map data.
An adjustment unit that adjusts the position and orientation of the update drawing data with respect to the map data so that the position of the manhole included in the update drawing data matches the position of the manhole included in the map data. When,
An update unit that updates the map data with the position-adjusted update drawing data,
A map data updater equipped with. The map data updating device according to claim 1 or 2.
The position information contained in the reference manhole information is information indicating latitude and longitude, and is information indicating latitude and longitude.
The update unit is a map data updating device characterized by adding information indicating latitude and longitude to updated map data based on information indicating latitude and longitude of the reference manhole information. It is a map data update method for updating map data by using update drawing data which is data for updating a part of the map data.
The map data includes reference manhole information having at least manhole position information.
The update drawing data includes update manhole information having position information that shows the relative positions of two or more manholes included in the map data.
Adjustment step to adjust the position and orientation of the update drawing data with respect to the map data so that the position of the manhole included in the update drawing data matches the position of the manhole included in the map data. When,
An update step for updating the map data with the position-adjusted update drawing data, and
Have,
Some of the reference manhole information and the update manhole information also have identification information that identifies the manhole.
A map data update method, characterized in that at least one of the update manhole information also has identification information, and the reference manhole information about the manhole also has identification information. It is a map data update method for updating map data by using update drawing data which is data for updating a part of the map data.
The map data includes reference manhole information having at least manhole position information.
The update drawing data includes update manhole information having position information that shows the relative positions of three or more manholes included in the map data.
Adjustment step to adjust the position and orientation of the update drawing data with respect to the map data so that the position of the manhole included in the update drawing data matches the position of the manhole included in the map data. When,
An update step for updating the map data with the position-adjusted update drawing data, and
How to update map data to execute. The map data update method according to claim 4 or 5.
The position information contained in the reference manhole information is information indicating latitude and longitude, and is information indicating latitude and longitude.
The update step is a map data update method, characterized in that information indicating latitude and longitude is added to the updated map data based on the information indicating latitude and longitude of the reference manhole information. A manhole information acquisition step for acquiring equipment manhole information from an equipment data recording unit that records equipment manhole information, which is information having identification information for identifying a manhole and position information indicating latitude and longitude.
A relative position acquisition step for acquiring the relative position of the manhole specified by the equipment manhole information with respect to a point having information indicating latitude and longitude on the map data, and
Based on the relative position, the position information indicating the latitude and longitude of the equipment manhole information is corrected to obtain the reference manhole information, and the reference manhole information is added to the map data .
For a manhole without reference manhole information, reference manhole information having position information obtained based on the relative position with the manhole added in the reference information addition step is generated, and the reference manhole information generated in the map data is used. Generated information to be added A map data generation method that executes an additional step. A map data update program for operating a computer as the map data update device according to any one of claims 1 to 3.

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