JP2017224224A - Map data generation device and map data generation method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method and a device for improving the efficiency of map data generation for distributing operation of a distribution device that distributes agriculture materials over a farm field.SOLUTION: Multiple pieces of area data for classifying areas in which an agriculture material is distributed are added to image data of a farm field B, then at least three or more pieces of coordinate data are set at certain positions on an outer periphery of area data and distribution data is added to the area data. Longitude and latitude data are added to each of the three or more pieces of coordinate data set in at least one area data, then based on the longitude and latitude data added to each of three points or more points of the pieces of coordinate data and on each coordinate data to which the longitude and latitude data have been added, all pieces of coordinate data that have been set are converted into longitude and latitude data to generate map data MD.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an apparatus and a method for creating map data used for spraying agricultural materials to be sprayed on a field.

  In the work of spraying agricultural materials on the field, map data is used to automate the spray work.

  The map data sets, for example, a range in which the agricultural material is dispersed in the same field, and the type of agricultural work to be performed for each range and the agricultural material to be applied to each range (for example, The amount and type of fertilizer, pesticide, water, etc.) are associated as scattered data.

  Creation of map data is performed by acquiring the latest image data of the field by aerial photography, setting range data for this image data, and assigning scattered data to this range data. For example, the range data is set by dividing the image data with a grid, and the distribution data corresponding to each range data is assigned to each range data. A general method is to assign scattered data for each polygon.

  In addition, as a means of taking aerial images of farm fields, there are means for taking aerial pictures using manned aircraft and small unmanned aerial vehicles flying by radio control, but the latest field image data can be obtained easily and quickly at low cost. In general, a digital camera is attached to the above-mentioned unmanned air vehicle that can be operated by the sprayer itself, and the unmanned air vehicle is allowed to fly over the field to take an aerial image of the field. It is used.

  By the way, since the image data obtained by aerial photography is distorted due to aerial photography altitude, it is necessary to correct this image data. In the case of a digital camera without a GPS function, in addition to the above-described distortion correction, It was necessary to add position information such as the size, position, direction, and shooting direction of the field.

  As a means for correcting image data, the technique described in Patent Document 1 below can be used. This technology inputs an aerial photographic image and a map of the area corresponding to it and converts it into digital data, displays the obtained aerial photographic image and the map data in an overlapping manner, and displays the aerial image on the displayed map data. Digital image processing is performed so as to match photographic image data. By utilizing the technique described in Patent Document 1, the size, position, direction, and shooting direction of the field can be clarified on the image data, and image distortion can be eliminated.

Japanese Patent No. 2787740

  The digital image processing described in Patent Literature 1 displays an image in which image data and map data are superimposed on a screen, and expands so that the contour of the displayed image data matches the contour of the map data. Various processing operations such as reduction, rotation, movement, and deformation are performed, but this processing operation is extremely fine and requires time.

  In particular, when setting a plurality of range data in the field, not only is it inefficient, but it takes a considerable amount of time and labor to give the spraying data of agricultural materials to the spraying device. There was still a problem in terms of improving the efficiency of the work of applying agricultural data to agricultural materials.

  In order to solve the above-described problems, the present invention employs the following means.

  A map data creation device for creating map data for spraying work of a spraying device for spraying agricultural material on a field, where the agricultural material is sprayed on the image data of the field taken by an imaging means Area data setting means for assigning a plurality of area data, coordinate data setting means for setting coordinate data of at least three points at arbitrary positions in the area data, and scattering data for the area data Scatter data giving means, and latitude / longitude data giving means for giving longitude / latitude data to each of three or more coordinate data set in at least one area data, and given to three or more points of the coordinate data On the basis of the longitude and latitude data and the coordinate data to which the longitude and latitude data are assigned, all the set coordinate data are converted into longitude and latitude data. By conversion is to have the map data creating apparatus characterized by and a map data creating means for creating the map data with the area data and the scatter data and latitude and longitude data.

  A map data creating method for creating map data for spreading work of a spreading device for spreading agricultural materials on a field, the step of acquiring image data of the field taken aerial by an imaging means, A step of giving a plurality of area data for dividing a place where the agricultural material is sprayed, a step of setting coordinate data of at least three points at an arbitrary position in the area data, and a spray data for the area data A step of assigning longitude and latitude data to each of three or more coordinate data set in at least one of the area data, and the longitude and latitude data assigned to three or more points of the coordinate data And converting all the set coordinate data into longitude and latitude data based on the coordinate data to which the longitude and latitude data is assigned Is to have the map data creation method characterized by comprising the step of generating the map data with the area data and the scatter data and latitude and longitude data.

It is a block diagram which shows the structure of the map data creation apparatus of one Embodiment which concerns on this invention. (A)-(d) is process drawing which shows the process of producing map data with a map data production apparatus. It is a flowchart explaining the map data creation method of one Embodiment concerning this invention.

  Hereinafter, a map data creation device A according to an embodiment of the present invention will be described with reference to FIGS. In the present embodiment, the agricultural material is exemplified as the fertilizer 100, and the map data MD in which the spray data of the fertilizer 100 is described is transmitted to the spraying device C.

  The map data creation device A performs the application of the fertilizer 100 to the field B based on the image data D from the sky acquired by the imaging means 1 and the existing map data M corresponding to the location of the image data D. The map data MD to be used is created and the map data MD is transmitted to the spraying device C.

  The map data creation device A is mounted on a terminal device PC such as a personal computer or a tablet (not shown) connected to the Internet, and various operations are controlled by a control unit PC1 provided in the terminal device PC.

  The terminal device PC stores an operation unit PC2 for operating the map data creation device A, various software for operating the map data creation device A, and the like, as shown in FIGS. A calculation storage unit PC3 that calculates and stores various data such as image data D, map data M, and map data MD, a display unit PC4 that displays the above-described various data as images, and a reception unit that receives the image data D and map data M. PC5 etc. are provided, and by operating the operation unit PC2, the above-mentioned various data are taken out from the calculation storage unit PC3 and displayed on the display unit PC4, and a processing operation is performed, and various types of processed data are stored in the calculation storage unit PC3. To be remembered.

  The image data D is converted into data so that it can be freely deformed, moved, and stretched by digital processing. The map data M is obtained by embedding the longitude and latitude of the selected position. Such map data M can be acquired from, for example, an Internet search engine.

  The imaging means 1 is provided in a flying body (not shown) that can rise to an altitude at which the entire area of the target field B can be aerial photographed, and the flying body is raised to a necessary altitude above the field B. In this state, it can be photographed by remote control.

  The above-mentioned flying object is a small one that is unmanned by radio control, and can at least move up in the vertical direction and maintain a fixed position in the air.

  The imaging unit 1 includes a storage unit 1A that stores a captured image as image data D. Examples of the storage unit 1A include a removable storage medium such as various memory cards, or a storage medium built in the image pickup unit 1.

  When the storage unit 1A is a detachable storage medium, the stored image data D can be transmitted to the terminal device PC by removing the storage unit 1A from the imaging unit 1 and connecting it to the receiving unit PC5. When the means 1A is a storage medium built in the image pickup means 1, the stored image data D can be transmitted to the terminal device PC by connecting the stored image data D to the receiving unit PC5 by wire or wirelessly.

  Hereinafter, the map data creation apparatus A will be specifically described. As shown in FIG. 1, the map data creating apparatus A includes an area data setting means 2, a coordinate data setting means 3, a scattered data giving means 4, a longitude / latitude data giving means 5, a map data creating means 6, And transmission means 7.

  As shown in FIG. 2 (a), the area data setting means 2 applies area data E1 to E4 for spraying the fertilizer 100 to the image data D displayed in color on the display unit PC4 as shown in FIG. 2 (b). Is set. As the area data setting means 2, for example, a means for setting so as to surround the selected part by designating a polygon by the drawing software can be adopted. At this time, the area data E1 of the shape set in the display unit PC4 To E4 are displayed as images. The setting of the areas E2 to E4 is not limited to the polygon designation.

  As shown in FIG. 2B, the area data E1 to E4 of the present embodiment is set so as to surround the outer periphery of the field B that can be visually discriminated in the image data D, and is selected in the area data E1. Area data E2 to E4 are set so as to surround the outer peripheries of the plurality of places (three places in the figure). The area data E1 to E4 are all set to have a polygonal outer periphery.

  The area data E2 to E4 are selected as portions having different colors and shades displayed in the area data E1 of the image data D displayed in color. That is, the difference in color and shade in the field B appears according to the degree of growth of the crop, and the image data D displayed on the display unit PC4 is visually determined to determine the portion where the difference in color and shade appears. The area data E2 to E4 are set for each part.

  The coordinate data setting means 3 sets the coordinate data at the designated position by designating an arbitrary position on the outer periphery of the area data E1 to E4. In the present embodiment, as shown in FIG. 2B, all corners of the polygonal area data E1 to E4 are designated, and coordinate data of the corners are set. (Indicated by a black circle) is displayed. Further, reference points P1 to P4 (indicated by white circles) for giving longitude and latitude are set to four selected points among the coordinate points P of the area data E1.

  The spread data giving means 4 gives spread data for setting the spread amount of the fertilizer 100 to the area data E1 to E4, respectively.

  In the application of scattered data according to the present embodiment, for example, numerical data in which the amount of spraying is assigned in the range of numerical values from the minimum value 1 to the maximum value 10 is created in advance, and the numerical values 1 to 10 are used as the area data E1 to E4. Are assigned numerical values corresponding to the area data E1 to E4 by operating the operation unit PC2. In this embodiment, as shown in FIG. 2B, “5” is assigned as the default value to the area data E1, and “10” is assigned to the area data E2, “8” is assigned to the area data E3, based on this default value. “4” is assigned to the area data E4.

  The area data E1 to E4, coordinate data, coordinate point P, reference points P1 to P4, and scattered data are combined and integrated, and this data file is stored as intermediate data D1 in the operation storage unit PC3.

  The longitude / latitude data giving means 5 gives longitude / latitude data to the reference points P1 to P4 in the area data E1. In the present embodiment, map data M in which longitude and latitude data is embedded is downloaded from an Internet search engine, and longitude and latitude data are assigned to the reference points P1 to P4 based on this map data M. The downloaded map The data M is stored in the operation storage unit PC3.

  As shown in FIG. 2 (c), the latitude / longitude data is given by the longitude / latitude data giving means 5 first, the map data M is displayed on the display unit, and the reference points P1 to P1 in the intermediate data D1 are displayed on the map data M. P4 is superimposed and displayed. The area data E1 in the intermediate data D1 may be displayed simultaneously with the reference points P1 to P4.

  Next, as shown in FIG. 2D, the displayed reference points P1 to P4 are selected on the screen by the operation unit PC2 and dragged to the reference points P1 to P4 of the displayed map data M. The reference points P1 to P4 are moved to the corresponding positions P10 to P40, and the moved positions are fixed.

  By moving the reference points P1 to P4 to the positions P10 to P40 and fixing them, the actual longitude and latitude data embedded in the positions P10 to P40 are automatically given to the reference points P1 to P4.

  When the actual longitude / latitude is given to the reference points P1 to P4, the map data creation means 6 stores all the longitude / latitude data and coordinate data on the reference points P1 to P4 and the area data E1 to E4. From the correlation with the coordinate data of the coordinate point P, the coordinate data of the coordinate point P of the area data E1 to E4 is calculated by the calculation storage unit PC3, and based on the calculation result, the coordinate point P of the area data E1 to E4 is calculated. The coordinate data is converted into longitude and latitude data.

  That is, the map data creation means 6 converts the coordinate data of all coordinate points P in the intermediate data D1 into longitude and latitude data, and the actual positions, areas, and shapes of the area data E1 to E4 in which the fertilizer application data is set. Map data MD having area data E1 to E4, longitude and latitude data, and fertilizer application data can be created.

  The created map data MD is stored in the arithmetic storage unit PC3 and transmitted to the spraying device C via the transmission means 7.

  The transmission means 7 transmits the map data MD stored in the calculation storage unit P3 to the spraying device C. Examples of the transmission means 7 include a wired LAN or a wireless LAN, or a storage medium such as a memory card. Another transmission means 7 can be exemplified by a cloud service. When this cloud service is used as the transmission means 7, the map data MD is stored in the service provider's server in place of the operation storage unit P3, and transmitted from this server to the spraying device C via the Internet.

  As shown in FIG. 1, the spreading device C stores the received map data MD and a receiving unit C1 that receives the map data MD of the transmission means 7 by a cloud service, a storage medium such as wired or wireless, or a memory card. And a control unit C3 for controlling the application amount of the fertilizer 100 corresponding to the area data E1 to E4 set in the field B to be automatically adjusted based on the stored map data MD. ing.

  Further, the spraying device C is an adjustment mechanism for adjusting the opening degree of a shutter (not shown) that opens and closes a dropping port (not shown) of a hopper (not shown) mounted on a traveling body (not shown). The above-mentioned shutter opening degree adjustment by the adjusting mechanism C4 is applied to the area data E1 to E4 set in the field B based on the map data MD stored in the storage unit C2. It is controlled to be performed automatically so as to be a quantity.

  Therefore, the map data creation device A can easily set the area data E1 to E4 as different application data in the field B, and transmits to the receiving unit C1 by a wired or wireless or storage medium. 7 is connected, the map data MD in which different scatter data is written for each of the area data E1 to E4 and the area data E1 to E4 can be transmitted to the scatterer C side.

  Note that the longitude and latitude data adding means 5 directly writes and assigns the longitude and latitude values described in the positions P10 to P40 of the map data M corresponding to the reference points P1 to P4 to the reference points P1 to P4. It may be (not shown). Further, the setting positions of the reference points P1 to P4 are not limited to the area data E1, but may be any of the area data E2 to E4. The operation unit PC2 can use a touch pen, a mouse, a keyboard, or the like that is operated by directly touching the display unit PC4.

  Next, a map data providing method according to an embodiment of the present invention will be described with reference to FIGS. The flowchart of FIG. 3 shows the procedure for transmitting the map data creation process shown in FIGS. 2A to 2D and the created map data MD to the spraying device C in the map data creation apparatus A shown in FIG.

  The flowchart shown in FIG. 3 is activated when an instruction (start) for creating map data is given.

  First, as shown in FIG. 2A, the image data D is displayed in color on the display unit PC4 (step S1). Next, as shown in FIG. 2B, area data E1 to E4 for spreading the fertilizer 100 on the image data D are set (step S2). In step S2, the outer periphery which displays the polygonal shape of area data E1-E4 is displayed on display part PC4.

  Next, as shown in FIG. 2B, all the corners of the displayed area data E1 to E4 are designated, and the coordinate data of the corners are set (step S3). This coordinate data is set with the corners of the area data E1 to E4 as coordinate points P, and is displayed by black circles.

  Next, as shown in FIG. 2B, reference points P1 to P4 for giving longitude and latitude data are set to four of the coordinate points P in the area data E1 (step S4). The reference points P1 to P4 are displayed as white circles so as to surround the coordinate point P displayed as a black circle.

  Next, as shown in FIG. 2B, scattered data is added to the area data E1 to E4 (step S5). Then, intermediate data D1 in which area data E1 to E4, coordinate data, coordinate point P, reference points P1 to P4, and scattered data are combined and integrated is created (step S6). The intermediate data D1 is stored in the operation storage unit PC3.

  Next, as shown in FIG. 2C, the map data M downloaded and stored in the calculation storage unit PC3 is extracted and displayed on the display unit PC4 (step S7). Then, as shown in FIG. 2C, the intermediate data D1 is taken out from the arithmetic storage unit PC3, and only the reference points P1 to P4 in the intermediate data D1 are displayed so as to be superimposed on the displayed map data M. (Step S8)

  Next, as shown in FIG. 2D, the displayed reference points P1 to P4 are selected on the screen by the operation unit PC2 and dragged to the reference points P1 to P4 of the displayed map data M. By moving the reference points P1 to P4 to the corresponding positions P10 to P40 and fixing the moved positions, the actual longitude and latitude data embedded in the positions P10 to P40 are given to the reference points P1 to P4 ( Step S9).

  When the actual longitude and latitude are given to the reference points P1 to P4, the longitude and latitude data and the coordinate data on the reference points P1 to P4 and the coordinates of all the coordinate points P set on the area data E1 to E4. From the correlation with the data, the coordinate data of the coordinate point P of the area data E1 to E4 is calculated by the calculation storage unit PC3, and the coordinate data of the coordinate point P of the area data E1 to E4 is based on the calculation result. The actual position, area, and shape of the area data E1 to E4 in which the fertilizer application data is set are identified, and the area data E1 to E4, the longitude and latitude data, and the fertilizer application are specified. Map data MD having data is created (step S11).

  The created map data MD is stored in the arithmetic storage unit PC3, taken out based on the operation of the operation unit PC, and transmitted to the spraying device C through the transmission means 7 (step S12).

  Therefore, the map data providing method can easily set the area data E1 to E4 as different application data for the field B as the actual range and position, and can be wired or wireless to the receiving unit C1. Alternatively, the transmission means 7 made of a storage medium is connected to transmit the range and position of the area data E1 to E4 and the map data MD in which different scatter data is written for each area data E1 to E4 to the scatterer C. be able to.

  Next, a map data creation method according to an embodiment of the present invention will be described. This map data MD can be created by the steps of creating the map data MD of FIGS. 2A to 2D and steps S1 to S11 in the flowchart of FIG.

  Therefore, the map data creation method can easily set the area data E1 to E4 in which different scattered data is described for the field B as the actual range and position, and the range of the area data E1 to E4. Further, map data MD in which different scattered data is written for each of the position data and the area data E1 to E4 can be created.

  The procedure for creating the map data MD is not limited to the exemplified procedure, and the map data MD in which the range and position of the area data E1 to E4 and the different scattered data is written for each area data E1 to E4 is created. Any procedure can be used.

  Moreover, the setting of the reference points P1 to P4 is not limited to the illustrated four points, and may be three or more points that can surround an arbitrary range of the field B.

  The present invention is not limited to the illustrated embodiments, and can be implemented with configurations within a scope that does not deviate from the contents described in the claims.

A: Map data creation device B: Field
C: Spreading device
D: Image data
M: Map data MD: Map data
1: Imaging means
2: Area data setting means
3: Coordinate data setting means
4: Scatter data giving means
5: Means for giving latitude and longitude data
6: Map data creation means 7: Transmission means
P: Coordinate point
P1 to P4: Reference point
E1 to E4: Area data

Claims (5)

A map data creation device for creating map data for spraying work of a spraying device for spraying agricultural materials on a field,
Area data setting means for assigning a plurality of area data to divide the place where the agricultural material is dispersed, to the image data of the farm field taken aerial by the imaging means;
Coordinate data setting means for setting coordinate data of at least three points at an arbitrary position in the area data;
Scatter data giving means for giving scatter data to the area data;
Latitude and longitude data providing means for assigning longitude and latitude data to each of coordinate data of three or more points set in at least one area data;
Based on the longitude and latitude data given to three or more points of the coordinate data and the coordinate data to which the longitude and latitude data are given, by converting all the set coordinate data to longitude and latitude data, A map data creation device comprising map data creation means for creating the map data comprising area data, the scattered data, and longitude and latitude data.   2. The map data creation device according to claim 1, further comprising transmission means for transmitting the map data to the scattering device.   A map data creating method for creating map data for spreading work of a spreading device for spreading agricultural materials on a field, the step of acquiring image data of the field taken aerial by an imaging means, A step of giving a plurality of area data for dividing a place where the agricultural material is sprayed, a step of setting coordinate data of at least three points at an arbitrary position in the area data, and a spray data for the area data A step of assigning longitude and latitude data to each of three or more coordinate data set in at least one of the area data, and the longitude and latitude data assigned to three or more points of the coordinate data And converting all the set coordinate data into longitude and latitude data based on the coordinate data to which the longitude and latitude data is assigned , Map data creation method characterized by comprising the step of generating the map data with the area data and the scatter data and latitude and longitude data.   4. The map data creation method according to claim 3, wherein the area data in which the coordinate data to which the longitude / latitude data is given is set is the area divided along the outer periphery of the field.   5. The map data creation method according to claim 3, further comprising a step of transmitting the map data to the scattering device.

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