KR0167045B1 - Apparatus for examining the digital map using a car - Google Patents

Abstract

The present invention relates to a map inspection apparatus using a vehicle, wherein a coordinate of a vehicle according to the movement of a vehicle is provided from a GPS detector on a numerical map of a region to be displayed on an image display unit, and the progress detected from a direction detector and a driving detector is detected. After the correction is made based on the direction and the mileage, the vehicle symbol is moved on the numerical map based on the control signal for display from the position information processing unit. Next, if the feature or road on the numerical map and the actual feature or road do not match, when the inspector selects the mismatched feature or road through the keypad, the corresponding ID is displayed on the location information display unit. When the inspector inputs the actual position through the location input unit, the ID of the unmatched feature or feature or road and the corresponding coordinates are respectively stored in the memory, and according to the traveling direction and mileage according to the movement of the vehicle. By correcting the coordinates of the moving vehicle and storing the coordinates corresponding to the wrong features or roads on the digital map, the measurement error by the inspector generated during the digital map inspection process can be reduced, as well as the recording error and the map. The inspection work time is drastically shortened.

Description

Map inspection device using vehicle

1 is a schematic block diagram of a map inspection apparatus using a vehicle according to a preferred embodiment of the present invention.

2 is a diagram for explaining an operation process of correcting coordinates of a feature of a wrong location by inspecting a map using a vehicle according to an embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

120: GPS receiver 122: direction detection unit

124: driving detection unit 126: keypad

128: location information display unit 130: location information input unit

140: location input unit 142: memory

144: location information processing unit 150: image display unit

The present invention relates to a map inspection apparatus for inspecting the accuracy of a map, and more particularly, to a map inspection apparatus using a vehicle capable of continuously inspecting error information during map inspection.

In general, a map produced through aerial photography, surveying, etc. can only obtain the alignment of the terrain, but cannot obtain information such as the name of the feature. Therefore, in order to complete the map through information such as the name of the feature and the linear judgment different from the road situation, it is essential to inspect the accuracy of the map through the on-site inspection of the inspector.

As a method for checking the accuracy of the above-described map, there is a method of using a field visit survey, a method of using a GPS (Global Position System; GPS abbreviated hereinafter) receiver, and the like.

Here, the GPS receiver receives the coordinate data provided from the satellite (generally, the coordinates for latitude and longitude), converts them into numerical map standard coordinates, and then provides the coordinates where the current GPS receiver is located.

On the other hand, the above-mentioned local visiting research method is to create a digital map using aerial photographs or existing maps, and then visit the arbitrary area and inspect it to determine the accuracy of the created digital map, and to inspect the wrong location or feature. This is a manual recording method.

Here, the numerical map means a map created mainly on the alignment of the aerial photographs or the features or roads on the existing map.

In the method using the GPS receiver, a numerical map is generated by using an aerial photograph or an existing map, and the vehicle equipped with the GPS receiver is moved to an arbitrary area, and the coordinate value inputted from the GPS receiver and the created numerical map are generated. After the comparison, the inspector manually records the wrong features or roads of the digital map.

However, the field visit survey method is a visual verification method by the inspector, so the accuracy of the measurement error is inferior depending on the inspector's skill and the road situation, which may change from time to time. There is a big problem of economic loss due to long working hours due to on-site investigation.

In the method using a GPS receiver, when using a vehicle equipped with a GPS receiver, there is a problem in that it is impossible to continuously compare the coordinate values received from the GPS receiver with the numerical map coordinate values on the numerical map. In addition, even in the case of using individual coordinate values, the match between the road shape and the feature on the digital map depends on visual confirmation.

Accordingly, the present invention has been made in view of the above-described problems of the prior art, and the numerical map can be inspected by continuously comparing the coordinate values of the vehicle according to the movement of the vehicle with the coordinates of the feature or the road on the numerical map. It is an object of the present invention to provide a map inspection apparatus using a vehicle.

In order to achieve the above object, the present invention is a device for digital map inspection, GPS receiving means for receiving the coordinate value provided from the satellite and converting the coordinates for digital map inspection, and is mounted on the vehicle, the vehicle Detection means for detecting the traveling direction of the vehicle detected by the direction sensor during the movement of the vehicle and the traveling distance of the vehicle detected by the odometer of the vehicle, and a feature to be corrected based on the manual operation of the inspector; When a key corresponding to the road is pressed, the keypad provides the corresponding key signal to the location information input means, and provides the location information processing means with the corresponding feature or the ID of the road based on the key signal provided from the keypad. At the same time generating a control signal for displaying it to the position information display means; The position information input means for correcting the coordinates of the vehicle provided from the GPS receiving means based on the traveling direction and the mileage of the vehicle detected by the detection means, and a control signal for display from the position information input means; And position information display means for displaying a feature or road ID corresponding to a key signal input through the keypad, and a position for providing coordinates of the feature or road to be corrected based on a manual operation of an inspector. An input means, a feature of the region to be inspected, a road alignment, and the like, and an ID of the feature or road to be corrected based on a control signal for storage from the position information processing means and the corresponding A memory for storing coordinates from the position input means, and the inspection under Displays a numerical map of a desired area, displays the vehicle position using symbols at coordinates corresponding to the initial position of the vehicle, and then displays the symbol in accordance with the corrected coordinates of the vehicle provided from the position information input means. Generating a control signal for display while moving, and generating the control signal for storing the ID of the feature or road to be corrected from the position information input means and the corresponding coordinates in the memory. And image display means for displaying the numerical map based on a control signal for display from the position information processing means and moving the symbol on the numerical map based on the corrected coordinates. Characterized in that And provides the map using the vehicle verification apparatus.

The above and other objects and various advantages of the present invention will become more apparent from the preferred embodiments of the invention described below with reference to the accompanying drawings by those skilled in the art.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic block diagram of a map inspection apparatus using a vehicle according to a preferred embodiment of the present invention, the GPS receiver 120 and the direction detector 122. Consists of driving detector 124, keypad 126, location information display unit 128, location information input unit 130, location input unit 140, memory 142, location information processing unit 144 and image display unit 150 do.

In the drawing, the GPS receiver 120 receives a GPS value provided from the satellite, converts the GPS value into a digital map standard coordinate, and then provides it to the location information input unit 130, and the direction detecting unit 122 and the driving detecting unit 124 It is provided in a predetermined portion of the vehicle and detects the traveling direction of the vehicle and the traveling distance of the vehicle, respectively, and provides the position information input unit 130.

Here, the direction detection unit 122 detects the traveling direction of the vehicle through a direction detector such as a gyro (GYRO) that detects the direction by detecting the angular movement amount, and the driving detection unit 124 travels through the vehicle's traveling system. Detect distance

When the inspector inputs a predetermined key corresponding to the feature or the road at the time of inspecting the map, the keypad 126 generates a key signal corresponding thereto and provides it to the location information input unit 130 to be described later. 128 displays an ID (IDENTIFICATION; hereinafter abbreviated ID) for a feature or a road input through the keypad 126 based on a control signal for display from the location information input unit 130.

In addition, the location information input unit 130 provides an ID of a feature or a road input through the keypad 126 to the location information processing unit 144 and generates a control signal for displaying on the location information display unit 128. In addition, the digital map standard eye coordinates for the vehicle provided through the GPS receiver 120 are corrected by the direction and the mileage of the vehicle provided by the direction detecting unit 122 and the driving detecting unit 124 to correct the vehicle. The coordinates of the current location are provided to the location information processor 144.

In FIG. 1, the position input unit 140 is for correcting and inputting coordinates of a feature or a road at the time of inspecting a map based on a manual operation of an inspector, and such a position input unit 140 is a keyboard and a mouse. Pointing devices such as these are mainly used.

In addition, the memory 142 stores the numerical map of the area to be inspected, and at the same time the feature or road ID provided from the location information input unit 130 and the corresponding feature input through the location input unit 140 correspondingly. Store the coordinates of the road.

The location information processing unit 144 generates a control signal for drawing the numerical map of the area to be inspected stored in the memory 142 and displaying it on the image display unit 150, and also provides the location information input unit 130 from the location information input unit 130. A control signal is generated for moving a symbol (for example, an image having a car shape or an image of knowing the position of the vehicle) on the numerical map displayed on the image display unit 150 according to the coordinates of the vehicle.

In addition, the location information processing unit 144 stores a control signal for storing the coordinates of the feature or road input through the location input unit 140 in correspondence with the ID of the feature or the road provided from the location information input unit 130, respectively. And the image display unit 150 displays the numerical map of the area to be inspected stored in the memory 142 on the basis of a control signal for display from the position information processing unit 144, and at the same time as the vehicle moves. Move the symbol on the displayed numerical map.

The operation of the map inspection apparatus using the vehicle according to the present invention, which is composed of the above-described members, will be described in more detail with reference to FIGS. 1 and 2.

First, a vehicle equipped with the GPS receiver 120, the direction detector 122, and the driving detector 124 is moved to an area to be inspected, and then the vehicle is stopped at an initial position of the area to be inspected.

Next, the numerical value map of the area to be stored in the memory 142 is drawn out by the location information processing unit 144 and then drawn out based on a control signal for display from the location information processing unit 144. A numerical map of the area to be displayed is displayed on the image display unit 150.

In addition, the GPS values provided from the satellites (not shown) are received through the GPS receiver 120, converted into the digital map standard coordinates, and then provided to the location information processor 144 through the location information input unit 130.

Then, based on a control signal for display from the location information processing unit 144, a symbol (e.g., having a car shape) at a coordinate corresponding to the initial position of the vehicle on the numerical map displayed on the image display unit 150. Image or an image capable of indicating the position of the vehicle) is displayed.

On the other hand, when the vehicle moves from the initial position, the numerical coordinate standard coordinate coordinates of the vehicle according to the movement of the vehicle is provided from the GPS receiver 120 to the location information input unit 130, the direction detection unit 22 provided in a predetermined portion of the vehicle Then, the traveling direction and the traveling distance of the vehicle are detected from the driving detector 124 and provided to the position information input unit 130, and the coordinate values according to the surrounding situation of the vehicle are corrected.

In detail, when a vehicle passes a random reception area such as a high-rise building, an underpass, a tunnel, or the like, an error of a coordinate value with respect to the current position of the vehicle may occur due to reflection or inability to receive coordinate information signals provided from the satellite. In this case, the coordinate values provided from the satellite may be corrected based on the traveling direction and the mileage of the vehicle at the initial position.

Then, the coordinates of the vehicle corrected through the location information input unit 130 are provided to the location information processing unit 144, and according to the coordinates of the vehicle moved based on the control signal for display from the location information processing unit 144. The symbol is moved on the numerical map of the area to be inspected displayed on the image display unit 150 and displayed on the image display unit 150.

Meanwhile, when the features or roads displayed on the numerical map do not coincide with the actual features or roads while the vehicle is moving, the inspector inputs a key corresponding to the inconsistent features or roads through the keypad 126. When pressed, a corresponding key signal from the keypad 126 is provided to the location information input unit 130.

Then, a key signal from the keypad 126 is provided to the location information processing unit 144 through the location information input unit 130, and at the same time, the keypad 126 is based on a control signal for display from the location information input unit 130. ID corresponding to the provided key signal is displayed on the positional information display unit 128.

Then, when the inspector inputs the location of the actual feature or the road on the numerical map displayed on the image display unit 150 using the pointing device of the location input unit 140, the corresponding coordinates are located from the location input unit 140. It is provided to the information processing unit 144, and corresponds to the feature or road ID provided from the location information input unit 130 through the location information processing unit 144.

Then, the ID from the location information input unit 130 and the actual feature or coordinate are respectively stored in the memory 142 based on the control signal for storage from the location information processing unit 144.

When the inspector compares the features or roads on the numerical map displayed on the image display unit 150 with the actual features or roads through the operation process as described above, the features are not matched with each other. Alternatively, when the ID of the road is input and the coordinates of the actual feature or the road are input through the location input unit 140, the ID and the coordinate of the feature or the road are respectively stored in the memory 142.

The following will be described with reference to FIG. 2 as an example.

First, FIG. 2 is a numerical map of a region to be inspected, which is drawn out of the memory 142 and displayed on the image display unit 150, a point A represents a vehicle symbol at an initial position of the region to be inspected, and B is an image display unit. The hospital on the numerical map displayed at 150 is shown.

Next, when the vehicle is moved in the east direction, a numerical map standard coordinate for the position of the moving vehicle is provided to the position information input unit 130 from the GPS receiver 120, and at the same time, the direction detecting unit 122 and the traveling detecting unit ( The driving direction and the driving distance of the vehicle are detected through the 124 and provided to the location information input unit 130.

Therefore, the coordinates of the current position of the vehicle provided from the GPS receiver 120 are corrected based on the traveling direction and the traveling distance of the vehicle, and then provided to the position information processing unit 144, and provided from the position information processing unit 144. The vehicle is moved on the numerical map displayed on the image display unit 150 based on the control signal for display.

On the other hand, when the hospital B on the numerical map is actually located at point C when the vehicle is moved 2 km in the east direction, when the inspector presses a key corresponding to the hospital via the keypad 126, the keypad 126 is pressed. The corresponding key signal is input from the position information input unit 130 to the position information processing unit 144.

At this time, the ID of the hospital input through the keypad 126 is displayed on the location information display unit 128 based on the control signal for display from the location information input unit 130.

Then, when the inspector inputs the point C using the pointing device of the position input unit 140, the coordinates corresponding to the position information are provided from the position input unit 140 to the position information processing unit 144, and the position information processing unit 144 is provided. The ID of the hospital and the coordinates of the hospital correspond to each other and are stored in the memory 142.

Next, when all the inspection of the area to be inspected is completed, the numerical map may be modified by using the ID of the feature or road stored in the memory 142 and its corresponding coordinates.

As described above, the coordinates of another vehicle for moving the vehicle are provided from the GPS detector 120 on the numerical map of the area to be inspected displayed by the image display unit 150, and the direction detector 122 and the driving detector 124 are provided. The vehicle symbol is moved on the numerical map based on the control signal for display from the position information processing unit 144 after correction is made based on the traveling direction and the travel distance detected from the control unit. Next, when the feature or road on the numerical map and the actual feature or road do not match, when the inspector selects a feature or road that does not match through the keypad 126, the corresponding ID is displayed in the location information display unit ( 128, when the inspector inputs the actual position through the location input unit 140, the ID of the feature or road that does not match and the corresponding coordinate are respectively stored in the memory 142.

Therefore, according to the present invention, since the coordinates of the moving vehicle are corrected based on the traveling direction and the mileage according to the movement of the vehicle, and the coordinates are stored corresponding to the wrong feature or the road on the numerical map, the numerical map is inspected. In addition to reducing the measurement error caused by the inspector generated in the process, there is an effect that can significantly reduce the recording error and guidance inspection work time.

Claims (1)

An apparatus for digital map inspection, the apparatus comprising: GPS receiving means for receiving a coordinate value provided from a satellite and converting the digital map into coordinates for digital map inspection; Detection means for detecting a traveling direction of the vehicle, which is created in the vehicle and sensed by the direction sensor when the vehicle moves, and the mileage of the vehicle sensed through the odometer of the vehicle; A keypad for providing a key signal corresponding to the feature or road to be corrected based on the inspector's manual operation to the location information input means; On the basis of the key signal provided from the keypad, an ID of a corresponding feature or road is provided to the location information processing means, and a control signal for displaying the location information display means is generated and detected by the detection means. The position information input means for correcting the coordinates of the vehicle provided from the GPS receiving means based on the traveling direction and the mileage of the vehicle; Location information display means for displaying an ID of a feature or a road corresponding to a key signal input through the keypad based on a control signal for display from the location information input means; Location input means for providing coordinates of the feature or road to be corrected based on a manual operation of an inspector; Stores the numerical map of the area to be inspected, and stores the ID of the feature or road to be corrected and coordinates from the location input means corresponding to the correction based on a control signal for storage from the location information processing means; Memory for; Displaying a numerical map of the area to be inspected, displaying a symbol at a coordinate corresponding to the initial position of the vehicle, and then moving the vehicle symbol according to the corrected coordinates of the vehicle provided from the position information input means; And generating a control signal for displaying, and generating the control signal for storing the ID of the feature or road to be corrected and the coordinates corresponding thereto provided from the location information input means in the memory. ; And an image display means for displaying the numerical map on the basis of a control signal for display from the position information processing means, and displaying the vehicle symbol while moving the vehicle symbol on the numerical map based on the corrected coordinates. Map inspection device using a vehicle characterized in that.