JP6070094B2 - Cultivated land determination device, method and program - Google Patents

Description

  The present invention relates to a cultivated land determination device, a cultivated land determination method, and a cultivated land determination program.

  A technique for acquiring information on an object without touching the object is referred to as a remote sensing technique. Among them, satellite remote sensing technology that images the ground surface using sensors mounted on artificial satellites can simultaneously acquire a wide range of information and observe the same place over and over, allowing the observer to go directly to the site. It is mainly used for land cover classification because it is not necessary to crawl.

  The land cover classification method using satellite remote sensing technology is as follows. First, a reflected wave obtained by reflecting an electromagnetic wave irradiated from a satellite or the sun by a ground surface is acquired by a sensor, and land cover is classified based on a difference in reflection characteristics of the electromagnetic wave caused by a difference in land cover. Specifically, the presence / absence, type, and growth stage of the land can be determined by comparing information on the spectrum obtained from image data such as satellite images with information on the spectrum stored in advance. .

JP 2003-6612 A

  In recent years, the enforcement of the revised Agricultural Land Law has eased restrictions on the lease of farmland, and under certain conditions, it has become possible to lease farmland by corporations other than agricultural production corporations. As a result, companies are expected to improve agricultural production by consolidating farmland that was formerly abandoned farmland and conducting farming activities. However, because it is necessary to discover abandoned farmland at an early stage, satellite remote sensing technology is attracting attention as a method for discovering abandoned farmland.

  As described above, the existing technology can determine the presence or absence of vegetation by using satellite remote sensing technology, but cannot determine whether or not an area without vegetation is an abandoned cultivation area. Specifically, there is a problem that it is not possible to distinguish between farmland with little vegetation for reasons such as immediately after harvesting, and abandoned cultivated land with little vegetation.

  In one aspect, an object of the present invention is to make it possible to estimate whether or not an area estimated to be not planted is an abandoned cultivation area.

In the disclosed technique, the farmland identification unit identifies the farmland estimated to be not planted based on the satellite image. Further, the disclosed technology is based on whether or not the farmland specified by the farmland specifying unit is being leased in the rental status information representing the rental status of each farmland stored in the first storage unit by the first determination unit. It is determined whether the farmland is cultivated land. In the disclosed technique, the fourth determination unit determines whether the farmland is cultivated land. That is, a 4th determination part specifies the owner of the farmland specified by the said farmland specific | specification part based on the real estate registration information memorize | stored in the 2nd memory | storage part. Then, in the farm work supplies purchase information stored in the third storage unit and representing the purchase status of the farm work supplies for each farmer through the predetermined group, the farm owner supplies the farm work supplies through the predetermined group within the predetermined period by the specified owner. The determination is made based on whether or not the product has been purchased.

  As one aspect, it has an effect that it is possible to estimate whether or not an area estimated to be not planted is an abandoned cultivation area.

It is a functional block diagram of the cultivated land determination apparatus demonstrated by embodiment. FIG. 2 is a schematic block diagram of a computer system including a computer that functions as the cultivated land determination device of FIG. 1. It is a flowchart which shows an example of the content of cultivated land determination processing. It is a flowchart which shows an example of the content of the determination process based on owner information. It is a flowchart which shows an example of the content of the determination process based on agricultural work supplies purchase information. It is a flowchart which shows an example of the content of the determination process based on shipping status information. It is a flowchart which shows an example of the content of the determination process based on the surrounding farmland cropping situation. It is a graph which shows an example of an estimation result table. It is a chart which shows an example of real estate registration information DB. It is a chart which shows an example of a work table. It is a chart which shows an example of lease status information DB. It is a chart which shows an example of agricultural work goods purchase situation DB. It is a graph which shows an example of shipping condition information DB.

  Hereinafter, an example of an embodiment of the disclosed technology will be described in detail with reference to the drawings. FIG. 1 shows a cultivated land determination device 10 according to the first embodiment. The cultivated land determination device 10 estimates a cultivated abandoned land that is estimated to have been abandoned, and outputs information on the estimated abandoned cultivated land based on satellite images taken by an artificial satellite and other information. It is a device that performs the processing.

  The cultivated land determination device 10 includes an image acquisition unit 12, an information acquisition unit 14, an agricultural land identification unit 16, a map information storage unit 18, a first determination unit 20 to a sixth determination unit 30, and an output unit 32. The image acquisition unit 12 is connected to a satellite image holding unit 34 that holds satellite images. The satellite image is taken regularly by the artificial satellite, and the latest satellite image taken by the artificial satellite is held in the satellite image holding unit 34. The image acquisition unit 12 acquires a satellite image from the satellite image holding unit 34.

  The information acquisition unit 14 is connected to the first storage unit 36 to the fourth storage unit 42. The first storage unit 36 stores rental status information, the second storage unit 38 stores real estate registration information, the third storage unit 40 stores agricultural work supplies purchase information, and the fourth storage unit 42 stores Shipment status information is stored (details of each information will be described later). The information acquisition unit 14 acquires various types of information from the first storage unit 36 to the fourth storage unit 42.

  The farm land identification unit 16 is connected to the image acquisition unit 12, the information acquisition unit 14, and the map information storage unit 18. The map information storage unit 18 stores map information in which the map is associated with information such as the address of each land on the map. The farm land identification unit 16 is reflected in the satellite image based on the satellite image acquired by the image acquisition unit 12, the real estate registration information acquired by the information acquisition unit 14 and the map information stored in the map information storage unit 18. The land of each land identifies the land of farmland. Further, the farmland specifying unit 16 estimates whether or not the crops are planted on each specified farmland based on the satellite image.

  The first determination unit 20 to the sixth determination unit 30 are respectively connected to the information acquisition unit 14 and the farmland identification unit 16. Here, there are two ways to rent farmland, one is obtaining permission under Article 3 of the Farmland Law, and the other is promoting projects such as setting rights of use under the Law for Promotion of Strengthening the Agricultural Management Base. The condition is emphasized. Based on the above, the first determination unit 20 determines whether or not each farmland estimated to be unplanted by the farmland identification unit 16 is being leased based on the rental status information acquired by the information acquisition unit 14. Thus, it is determined whether or not each farmland is cultivated land.

  Based on the real estate registration information acquired by the information acquisition unit 14 for each farmland estimated to be unplanted by the farmland identification unit 16, the second determination unit 22 determines the length of the ownership period by the owner of each farmland. Identify each one. Here, if the ownership period by the owner of each farmland is long, the owner is likely to be elderly, and if it is elderly, it can be presumed that there is a high possibility that the farming is abandoned physically. Based on the above, the second determination unit determines whether or not each farmland is cultivated land based on the length of the specified ownership period.

  Based on the real estate registration information acquired by the information acquisition unit 14 for each farmland estimated to be unplanted by the farmland identification unit 16, the third determination unit 24 owns another farmland. It is determined whether or not. Here, when an owner of a certain farmland owns a plurality of farmlands, it can be determined that there is a high possibility of farming by himself if there is a farming intention in terms of the scale merit of farming. Based on the above, the third determination unit 24 determines whether the other farmland is based on the rental status information acquired by the information acquisition unit 14 for the farmland that the owner also owns another farmland among the individual farmlands. It is determined whether or not the farmland is cultivated land by determining whether or not it is rented.

  Based on the real estate registration information acquired by the information acquisition unit 14, the fourth determination unit 26 specifies each owner of each farmland estimated by the farmland specification unit 16 as unplanted. If the owner of the farm has recently purchased agricultural supplies, it can be determined that there is a high possibility of farming. Based on the above, the fourth determination unit 26 determines, based on the farm work supplies purchase information acquired by the information acquisition unit 14, whether or not the farm work supplies have been purchased by the identified individual farmland owners. Determine whether the individual farmland is cultivated land.

  Based on the real estate registration information acquired by the information acquisition unit 14, the fifth determination unit 28 specifies each owner of each farmland estimated by the farmland specification unit 16 as not planted. Here, if the owner of the farmland is shipping the crop, it can be judged that it is almost certain that the farm is operating. Based on the above, the fifth determination unit 28 determines whether or not the crop is shipped by the owner of the identified individual farmland based on the shipment status information acquired by the information acquisition unit 14. Determine whether the farmland is cultivated land.

  In addition, the weather and climate of the neighboring farmland are the same, so if you are farming, you can guess that it should be planted at the same time as the neighboring farmland. Based on the above, the sixth determination unit 30 is based on whether or not the farmland existing around the individual farmland estimated to be unplanted by the farmland specifying unit 16 is estimated to be unplanted by the farmland specifying unit 16. Determine whether each farmland is cultivated land.

  Based on the determination results of the first determination unit 20 to the sixth determination unit 30, the output unit 32 is a farmland that has not been determined to be cultivated land (abandonment of farming) among the individual farmlands estimated to be unplanted by the farmland specifying unit 16. Information on farmland that is likely to be land).

  The cultivated land determination device 10 can be realized, for example, by a computer 50 shown in FIG. The computer 50 includes a CPU 52, a memory 54, a nonvolatile storage unit 56, and a network I / F (Interface) unit 58. The CPU 52, the memory 54, the storage unit 56, and the network I / F unit 58 are connected via a bus 60. Are connected to each other.

  The computer 50 is included in the computer system 90 and is connected to the network 102 via the network I / F unit 58. The computer system 90 includes a satellite image server 92, a rental status server 94, a registration information server 96, a material information server 98, and a shipping status server 100. The satellite image server 92, the rental status server 94, the registration information server 96, the material information server 98, and the shipping status server 100 are each connected to the network 102.

  The satellite image server 92 has a satellite image DB (database) 92A in which satellite images are registered. The satellite image server 92 functions as the satellite image holding unit 34 shown in FIG. The rental status server 94 has a rental status information DB 94A in which rental status information is registered. The rental status server 94 functions as the first storage unit 36 shown in FIG. The registration information server 96 has a real estate registration information DB 96A in which real estate registration information is registered. The registration information server 96 functions as the second storage unit 38 shown in FIG.

  The material information server 98 has an agricultural material purchasing information DB 98A in which agricultural material purchasing information is registered. The material information server 98 functions as the third storage unit 40 shown in FIG. The shipping status server 100 has a shipping status information DB 100A in which shipping status information is registered. The shipping status server 100 functions as the fourth storage unit 42 shown in FIG. In addition, a client terminal 104 operated by a user who uses the computer system 90 is also connected to the network 102.

  On the other hand, the storage unit 56 of the computer 50 can be realized by an HDD (Hard Disk Drive), a flash memory, or the like. The storage unit 56 as a recording medium stores a cultivated land determination program 62 for causing the computer 50 to function as the cultivated land determination device 10, and includes a map information storage area 64 and a table storage area 66. The CPU 52 reads the cultivated land determination program 62 from the storage unit 56 and develops it in the memory 54, and sequentially executes the processes included in the cultivated land determination program 62.

  The cultivated land determination program 62 includes an image acquisition process 70, an information acquisition process 72, an agricultural land identification process 74, a first determination process 76, a second determination process 78, a third determination process 80, and a fourth determination process 82. The cultivated land determination program 62 includes a fifth determination process 84, a sixth determination process 86, and an output process 88.

  The CPU 52 operates as the image acquisition unit 12 illustrated in FIG. 1 by executing the image acquisition process 70. The CPU 52 operates as the information acquisition unit 14 illustrated in FIG. 1 by executing the information acquisition process 72. Further, the CPU 52 operates as the farmland specifying unit 16 shown in FIG. 1 by executing the farmland specifying process 74. Further, the CPU 52 operates as the first determination unit 20 illustrated in FIG. 1 by executing the first determination process 76. The CPU 52 operates as the second determination unit 22 illustrated in FIG. 1 by executing the second determination process 78. Further, the CPU 52 operates as the third determination unit 24 illustrated in FIG. 1 by executing the third determination process 80.

  The CPU 52 operates as the fourth determination unit 26 illustrated in FIG. 1 by executing the fourth determination process 82. Further, the CPU 52 operates as the fifth determination unit 28 illustrated in FIG. 1 by executing the fifth determination process 84. The CPU 52 operates as the sixth determination unit 30 illustrated in FIG. 1 by executing the sixth determination process 86. The CPU 52 operates as the output unit 32 illustrated in FIG. 1 by executing the output process 88. Further, the map information storage area 64 provided in the storage unit 56 functions as the map information storage unit 18 shown in FIG.

  As a result, the computer 50 that has executed the cultivated land determination program 62 functions as the cultivated land determination device 10. The cultivated land determination program 62 is an example of a cultivated land determination program according to the disclosed technology.

  The cultivated land determination device 10 can also be realized by, for example, a semiconductor integrated circuit, more specifically, an ASIC (Application Specific Integrated Circuit) or the like.

  Next, the operation of this embodiment will be described. In this embodiment, the computer 50 included in the computer system 90 functions as a farm abandoned land information providing server that estimates farm abandoned land out of land photographed as satellite images and provides information on the estimated farm abandoned land. To do. When the user of the computer system 90 wants to know the abandoned farmland in a certain area, he / she operates the client terminal 104 to send information on the area he / she wants to receive information about the abandoned farmland to the computer 50 (providing abandoned farmland information provision). Register in advance on the server. Thereby, the computer 50 performs the cultivation land determination process shown in FIG. 3 for the area registered by the user.

  The provision of information on abandoned farmland is not limited to the method of registering the target area in advance as described above. For example, when the computer 50 preliminarily estimates the abandoned cultivated land for various regions and stores the results, and the user designates the region where he / she wants to receive information on the abandoned cultivated land, the computer 50 is designated. Information on abandoned farmland in the area may be searched and provided.

  In step 200 of the cultivated land determination process, the image acquisition unit 12 among the satellite images held in the satellite image holding unit 34, the satellite image of the area registered by the user (the area where the abandoned cultivated land information is provided). To get. In step 202, the farm land identification unit 16 analyzes the satellite image acquired by the image acquisition unit 12, and superimposes the analysis result on the map information stored in the map information storage unit 18, thereby planting each land section. Estimate the situation (whether or not the crop is planted). The cropping status is determined by comparing information about the spectrum obtained from the satellite image with information about the spectrum stored in advance. As shown in FIG. 8 as an example, the farmland identification unit 16 associates the estimation result of the planting situation for each land section with the ID (lot number ID) for each land section and the estimation result of the cropping situation. By registering in the estimation result table 120, the estimation result table 120 is created. The estimation result table 120 is stored in the table storage area 66 of the storage unit 56.

  In the next step 204, the information acquisition unit 14 performs the following processing for each section of land whose information is registered in the estimation result table 120. First, a character string (address) representing a lot number is obtained by referring to the map information, and then the real estate registration information DB 96A of the registration information server 96 is searched using the obtained character string (address) representing the lot number as a key. When the ground is farmland, information on the farmland is acquired from the real estate registration information DB 96A. As shown in FIG. 9, the real estate registration information DB 96 </ b> A has information such as a character string (address) representing a lot number, a registration date, a registration type, an item name, an owner name, an owner address, etc. Are registered.

  Information registered in the real estate registration information DB 96A is managed in Japan by the Ministry of Justice. The real estate registration information DB 96 </ b> A is a database in which information related to real estate registration managed by the Ministry of Justice is viewable via the network 102.

  The farmland specifying unit 16 creates a work table 122 shown in FIG. 10 as an example based on the information registered in the estimation result table 120 and the information acquired for each individual farmland by the information acquisition unit 14. The work table 122 is a table in which information on lot number ID, owner name, cropping state estimation result, cultivation abandonment possibility, and abandonment possibility point can be registered for each farmland. In addition, for farmland where the estimation result of the cropping status registered in the estimation result table 120 is “None”, “None” is registered in the estimation result of the cropping status in the work table 122, and “Yes” is registered in the possibility of abandoning cultivation. Is done. In addition, for farmland where the cropping status estimation result registered in the estimation result table 120 is “Yes”, “Yes” is registered in the cropping status estimation result in the work table 122 and “None” is registered in the abandonment of cultivation Is done. Also, a uniform initial value (for example, 0) is set for the abandonability point in the work table 122.

  In the next step 206, the farm land identification unit 16 sets the total number of records in the created work table 122 as a variable L. In step 208, the farmland identification unit 16 sets 1 to the variable n. In the next step 210, the farm land identification unit 16 acquires the abandonment of cultivation set in the nth record of the work table 122 from the work table 122.

  In step 212, the farm land identification unit 16 determines whether or not there is a possibility of abandoning cultivation acquired from the work table 122 in step 210. If the possibility of abandonment of cultivation is “None” at this stage, it can be determined that the farmland corresponding to the nth record in the work table 122 has crops planted, and there is almost no possibility of being abandoned cultivation. Therefore, if the determination in step 212 is negative, the process proceeds to step 232.

  On the other hand, if the determination at step 212 is affirmative, the routine proceeds to step 214. In step 214, the information acquisition unit 14 searches the rental status information DB 94A of the rental status server 94 using the lot number ID registered in the nth record of the work table 122 as a key, and displays information indicating the presence or absence of the rental contract. Acquired from the rental status information DB 94A. As shown in FIG. 11, the rental status information DB 94 </ b> A registers, for each farmland, lot number ID, information indicating the presence or absence of a rental contract, the name of the borrower, and the name of the lender.

  In Japan, when a farmland lease contract is concluded, it is necessary to notify the agricultural committee of the district to which it belongs. The rental status information DB 94 </ b> A is a database in which information indicating the rental status of farmland gathered at the agricultural committee in each district in accordance with the notification is made available for browsing via the network 102.

  In the next step 216, based on the information acquired by the information acquisition unit 14 in step 214, the first determination unit 20 determines whether or not a lease contract is concluded on the farmland corresponding to the nth record in the work table 122. judge. When a lease contract is concluded on the farmland corresponding to the nth record of the work table 122, it can be determined that the farmland is unlikely to have been abandoned. Therefore, if the determination in step 216 is affirmed, the process proceeds to step 218. In step 218, the first determination unit 20 sets the possibility of abandonment of the nth record in the work table to “none”, and the step The process proceeds to H.232.

  On the other hand, when the lease contract is not concluded on the farmland corresponding to the nth record of the work table 122, the determination in step 216 is denied and the process proceeds to step 220. In step 220, the information acquisition unit 14, the second determination unit 22, and the third determination unit 24 perform a determination process based on the owner information. Hereinafter, the determination process based on the owner information will be described with reference to FIG.

  In step 250 of determination processing based on owner information, the information acquisition unit 14 acquires a character string (address) representing a lot number with reference to map information for the farmland corresponding to the nth record in the work table 122. In step 252, the information acquisition unit 14 searches the real estate registration information DB 96 </ b> A of the registration information server 96 using the character string representing the lot number of the farm land corresponding to the nth record of the work table 122 as a key, and information on the corresponding record To get. And the information acquisition part 14 is the owner of the farmland corresponding to the nth record of the work table 122, and the elapsed date from the registration date included in the acquired information to the present date is owned by the said farmland. Calculate as the year and month.

  In the next step 254, the second determination unit 22 is preset with the date of ownership of the farmland by the owner of the farmland corresponding to the nth record of the work table 122 calculated by the information acquisition unit 14. It is determined whether or not a predetermined period has been exceeded. As the predetermined period, for example, a period of several tens of years (specifically, for example, 40 years) can be applied. In the next step 256, the second determination unit 22 branches depending on whether or not the ownership date of the farmland by the farmland owner corresponding to the nth record in the work table 122 exceeds a predetermined period.

  If the owner of the farmland corresponding to the nth record in the work table 122 exceeds the predetermined period, the farmland is owned by the same owner for a long time, and the farming is abandoned. It can be judged that there is a possibility of being done. For this reason, when the determination of step 256 is affirmed, the routine proceeds to step 258. In step 258, the second determination unit 22 adds a predetermined value set in advance to the abandonment possibility point set in the nth record of the work table 122, and proceeds to step 260. If the determination in step 256 is negative, step 258 is skipped and the process proceeds to step 260.

  In the next step 260, the information acquisition unit 14 extracts the farmland owner name from the nth record of the work table 122. Further, the information acquisition unit 14 searches the rental status information DB 94A of the rental status server 94 using the extracted owner name as a key, and extracts all the lot number IDs of the farmland in which the extracted owner name is set as the lender name. .

  In step 262, the third determination unit 24 determines whether there is a record in which the lot number ID extracted by the information acquisition unit 14 is registered in addition to the nth record of the work table 122. If the determination in step 262 is affirmative, the owner of the farmland corresponding to the nth record in the work table 122 also owns the farmland other than the farmland corresponding to the nth record, and lends the farmland to another person. Will be. For this reason, it can be determined that the farmland corresponding to the nth record in the work table 122 may have been abandoned.

  Accordingly, when the determination at step 262 is affirmed, the routine proceeds to step 264. In step 264, the third determination unit 24 adds a predetermined value set in advance to the abandonability point set in the nth record of the work table 122, and ends the determination process based on the owner information. If the determination at step 262 is negative, step 264 is skipped and the determination process based on the owner information is terminated.

  When the determination process based on the owner information ends, the process proceeds to step 222 in the cultivated land determination process (FIG. 3). In step 222, the information acquisition unit 14 and the fourth determination unit 26 perform a determination process based on the agricultural work material purchase information. Hereinafter, the determination process based on the agricultural product purchase information will be described with reference to FIG.

  In step 270 of the determination process based on the farm work supplies purchase information, the information acquisition unit 14 extracts the farmland owner name from the nth record of the work table 122. In the next step 272, the information acquisition unit 14 searches the agricultural material purchase status DB 98A of the material information server 98 by using the farmland owner name extracted in step 270 as a key, and the corresponding information from the agricultural material purchase status DB 98A. To extract. As shown in FIG. 12, the farm work supplies purchase status DB 98 </ b> A is registered in association with each information of the farmer's name, the name of the farm work supplies purchased by the farmer, and the purchase date.

  In Japan, farmers often purchase agricultural supplies through groups such as agricultural cooperatives (agricultural cooperatives). The farm work supplies purchase status DB 98A stores information representing the purchase status of farm work supplies by each farmer who gathered in groups such as agricultural cooperatives when the farmer purchased agricultural supplies through groups such as agricultural cooperatives via the network 102. It is a database that can be viewed.

  In addition, the fourth determination unit 26 determines whether the farmland owner corresponding to the nth record in the work table 122 is from the current time to a predetermined period before based on the information extracted by the information acquisition unit 14 from the agricultural product purchase status DB 98A. Determine whether or not you have purchased agricultural supplies. For example, a period of several months (specifically, for example, half a year) can be applied as the predetermined period. In the next step 274, the fourth determination unit 26 determines whether the farmland owner corresponding to the nth record in the work table 122 has purchased the agricultural work supplies during the period from the present time to the predetermined period. Branch.

  If the owner of the farmland corresponding to the nth record in the work table 122 has not purchased any agricultural work supplies during the period from the current time to a predetermined period before, it is determined that the farmland may have been abandoned. it can. Therefore, if the determination in step 274 is negative, the process proceeds to step 276. In step 276, the fourth determination unit 26 adds a predetermined value set in advance to the abandonment possibility point set in the nth record of the work table 122, and ends the determination process based on the agricultural work material purchase information. . If the determination in step 274 is affirmed, step 276 is skipped, and the determination process based on the agricultural work material purchase information is terminated.

  When the determination process based on the farm work material purchase information is completed, the process proceeds to step 224 of the cultivated land determination process (FIG. 3). In step 224, the information acquisition unit 14 and the fifth determination unit 28 perform determination processing based on the shipment status information. Hereinafter, the determination process based on the shipping status information will be described with reference to FIG.

  In step 280 of the determination process based on the shipping status information, the information acquisition unit 14 extracts the farmland owner name from the nth record of the work table 122. In step 282, the information acquisition unit 14 searches the shipping status information DB 100A of the shipping status server 100 using the farmland owner name extracted in step 280 as a key, and extracts corresponding information from the shipping status information DB 100A. As shown in FIG. 13, in the shipping status information DB 100 </ b> A, the name of the farmer, the name of the crop shipped by the farmer, and each information of the shipping date are registered in association with each other.

  In Japan, farmers often ship their crops through groups such as agricultural cooperatives (agricultural cooperatives). The shipping status information DB 100 </ b> A can browse information representing the shipping status of the crops by each farmer who gathered in the group such as the agricultural cooperative when the farmer shipped the crop through the group such as the agricultural cooperative via the network 102. It is a database.

  In addition, the fifth determination unit 28 determines that the farmland owner corresponding to the nth record in the work table 122 is based on the information extracted from the shipping status information DB 100A by the information acquisition unit 14 during a period from the present time to a predetermined period before. Determine whether the crop has been shipped. For example, a period of several months (specifically, for example, half a year) can be applied as the predetermined period. In the next step 284, the fifth determination unit 28 branches depending on whether or not the farmland owner corresponding to the nth record in the work table 122 has shipped the crop in a period from the present time to a predetermined period before. To do.

  If the owner of the farmland corresponding to the nth record in the work table 122 has not shipped the crop in the period from the present time to the predetermined period, it can be determined that the farmland may have been abandoned. . Therefore, if the determination in step 284 is negative, the process proceeds to step 286. In step 286, the fifth determination unit 28 adds a predetermined value set in advance to the abandonability point set in the nth record of the work table 122, and ends the determination process based on the shipping status information. If the determination in step 284 is affirmed, step 286 is skipped and the determination process based on the shipping status information is terminated.

  When the determination process based on the shipping status information is completed, the process proceeds to step 226 of the cultivated land determination process (FIG. 3). In step 226, the information acquisition unit 14 and the sixth determination unit 30 perform a determination process based on the surrounding farmland cropping situation. Hereinafter, the determination process based on the surrounding farmland cropping situation will be described with reference to FIG.

  In step 290 of the determination process based on the surrounding farmland cropping situation, the information acquisition unit 14 acquires the farmland lot number ID from the nth record of the work table 122. In the next step 292, the information acquisition unit 14 refers to the map information stored in the map information storage unit 18, recognizes the farmland existing around the farmland of the lot number ID acquired in step 290, and recognizes the recognized farmland. Get the lot number ID. In addition, the information acquisition unit 14 searches the work table 122 using the acquired lot number ID as a key, and acquires an estimation result of the farming condition of the farmland existing around the farmland of the lot number ID acquired in step 290. And the 6th determination part 30 determines whether the ratio of the farmland with an estimated result is a predetermined value or more among the surrounding farmlands from which the information acquisition part 14 acquired the estimation result of the cropping condition.

  In the next step 294, the sixth determination unit 30 branches depending on whether or not the proportion of farmland with cropping in the farmland existing around the farmland corresponding to the nth record of the work table 122 is greater than or equal to a predetermined value. To do. When the ratio of farmland with cropping to the farmland existing around the farmland corresponding to the nth record in the work table 122 is greater than or equal to a predetermined value, the farmland corresponding to the nth record in the work table 122 is abandoned. It can be judged that there is a possibility.

  Therefore, if the determination in step 294 is affirmed, the process proceeds to step 296. In step 296, the sixth determination unit 30 adds a predetermined value set in advance to the abandonment possibility point set in the nth record of the work table 122, and ends the determination process based on the surrounding farmland cropping situation. If the determination in step 294 is negative, step 296 is skipped, and the determination process based on the surrounding farmland cropping status is terminated.

  When the determination process based on the surrounding farmland cropping state is completed, the process proceeds to step 228 of the cultivated land determination process (FIG. 3). In step 228, the farmland identification unit 16 determines whether or not the abandonment possibility point set in the nth record of the work table 122 is equal to or greater than a predetermined value.

  If the determination in step 228 is affirmed, it can be estimated that the farmland corresponding to the nth record in the work table 122 has a relatively high possibility that cultivation has been abandoned. For this reason, when determination of step 228 is affirmed, it transfers to step 230, and the farm land specific | specification part 16 sets the possibility of abandonment of the nth record of the work table 122 to "Yes" in step 230, and step The process proceeds to H.232.

  On the other hand, if the determination in step 228 is negative, it can be estimated that the farmland corresponding to the nth record in the work table 122 is unlikely to have been abandoned. Therefore, if the determination in step 228 is negative, the process proceeds to step 218. In step 218, the farmland identification unit 16 sets the possibility of abandonment of the nth record in the work table 122 to “none”, and the step The process proceeds to H.232.

  In the next step 232, the farmland identification unit 16 increments the variable n by 1. In step 234, the farm land identification unit 16 determines whether or not the value of the variable n is larger than the total number L of records in the work table 122. If the determination in step 234 is negative, the process returns to step 210, and steps 210 to 234 are repeated until the determination in step 234 is affirmed.

  If the determination in step 234 is affirmed, the process proceeds to step 236, and in step 236, the output unit 32 extracts all records for which the possibility of abandonment is set to “Yes” from the work table 122. Then, in the next step 238, the output unit 32 uses the information of all records extracted from the work table 122 (information such as lot number ID, owner name, and character string (address) representing lot number) as abandoned farmland information. And cultivated land determination processing ends.

  The output of the abandoned farmland information by the output unit 32 is, for example, information on the abandoned farmland for the client terminal 104 that has performed processing for registering the target area in advance in the computer 50 (cultivated abandoned land information providing server). This is done by performing the process of transmitting. Thereby, the user who performed the operation | work which operates the client terminal 104 and registers a target area in advance can grasp | ascertain the cultivation abandonment land contained in a target area.

  In the above description, the mode in which the work table 122 is created by superimposing the analysis result of the satellite image and the map information and then collating with the real estate registration information DB 96A has been described. However, the disclosed technique is not limited to this. Absent. For example, after the map information and information registered in the real estate registration information DB 96A are collated and the area of the farmland is first determined on the satellite image, it is determined whether the determined individual farmland is planted on the satellite image. The work table 122 may be generated by estimation.

  Further, the determination processes in steps 220 to 226 in FIG. 3 are not limited to being executed in the order shown in FIG. 3, and the execution order of the determination processes can be appropriately changed.

  Moreover, in the above, in each determination process of step 220 to step 226 in FIG. 3, the abandonment possibility point to be added when there is a possibility that the farmland corresponding to the nth record of the work table 122 has been abandoned. The value of is not specifically described. However, in each determination process, it is not limited to adding a certain value as abandonment possibility point, the value of the abandonment possibility point to be added according to the probability that farming of the farmland is abandoned It may be changed.

  Furthermore, although the aspect which performs each determination process of step 220-step 226 of FIG. 3 was demonstrated above, it is not limited to this, It is made to abbreviate | omit one or more determination processes of each determination process. May be.

  In the above description, the computer 50 (abandoned farmland information providing server) is functioned as a farmland determination apparatus according to the disclosed technology, and the computer 50 provides the client terminal 104 with information related to the abandoned farmland. However, the present invention is not limited to this, and the client terminal 104 operated by the user may function as a cultivated land determination device according to the disclosed technique.

  Moreover, the aspect in which the cultivated land determination program 62 is stored (installed) in advance in the storage unit 56 of the computer 50 has been described above. However, the cultivated land determination program according to the disclosed technology can be provided in a form recorded on a recording medium such as a CD-ROM or a DVD-ROM.

  All documents, patent applications and technical standards mentioned in this specification are to the same extent as if each individual document, patent application and technical standard were specifically and individually stated to be incorporated by reference. Incorporated by reference in the book.

  Regarding the above embodiment, the following additional notes are disclosed.

(Appendix 1)
Based on satellite images, an agricultural land identification unit for identifying agricultural land that is estimated not to be planted,
In the leasing status information representing the leasing status for each farmland stored in the first storage unit, it is determined whether or not the farmland is cultivated based on whether or not the farmland specified by the farmland specifying unit is rented. A first determination unit;
Cultivated land determination device including

(Appendix 2)
Based on the real estate registration information stored in the second storage unit, the length of the farmland ownership period by the farmland owner identified by the farmland identification unit is identified, and the length of the farmland ownership period identified is specified. The cultivated land determination device according to supplementary note 1, further including a second determination unit that determines whether or not the farmland is cultivated land.

(Appendix 3)
Based on the real estate registration information stored in the second storage unit, it is determined whether the owner of the farmland specified by the farmland specifying unit owns another farmland from the farmland, and the owner Supplementary note 1 or 3 further including a third determination unit for determining whether or not the farmland is cultivated based on whether or not the other farmland is being leased in the rental status information when the farmland is owned The cultivated land determination device according to attachment 2.

(Appendix 4)
Based on the real estate registration information stored in the second storage unit, the owner of the farmland specified by the farmland specifying unit is specified, and the purchase status of the agricultural work supplies for each owner of the farmland stored in the third storage unit is determined. Supplementary notes 1 to 3 further including a fourth determination unit that determines whether or not the farmland is cultivated land based on whether or not the farmwork supplies are purchased by the identified owner in the agricultural product supply information that represents The cultivated land determination device according to any one of the preceding claims.

(Appendix 5)
Based on the real estate registration information stored in the second storage unit, the owner of the farmland specified by the farmland specifying unit is specified, and the shipment status of the crop for each owner of the farmland stored in the fourth storage unit is expressed. Any one of Supplementary notes 1 to 4, further comprising a fifth determination unit that determines whether or not the farmland is cultivated land based on whether or not the crop is shipped by the identified owner in the shipping status information. Cultivated land determination device according to item.

(Appendix 6)
Whether or not the farmland is cultivated land is determined based on whether or not the farmland existing around the farmland specified by the farmland specifying unit is estimated to be not planted based on the satellite image The cultivated land determination device according to any one of supplementary notes 1 to 5, further including a sixth determination unit.

(Appendix 7)
The appendix 1 to appendix 6, further including an output unit that outputs information on the farmland as information on the abandoned farmland when the farmland identified by the farmland identification unit is not determined as the farmland Arable land judgment device.

(Appendix 8)
At least one of the first determination unit to the sixth determination unit sets an evaluation value for the farmland according to a result of determining whether the farmland is cultivated land,
The cultivated land determination device according to appendix 7, wherein the output unit recognizes whether or not the farmland has not been determined to be cultivated land by comparing an evaluation value set for the farmland with a predetermined value.

(Appendix 9)
Based on the satellite image, identify the farmland that is estimated not to be planted,
Cultivated land including determining whether or not the farmland is cultivated based on whether or not the specified farmland is rented in the rental status information representing the rent status of each farmland stored in the first storage unit Judgment method.

(Appendix 10)
Based on the real estate registration information stored in the second storage unit, the length of the farmland ownership period by the farmland owner identified by the farmland identification unit is identified, and the length of the farmland ownership period identified is specified. The cultivated land determination method according to appendix 9, wherein it is determined whether or not the farmland is cultivated land.

(Appendix 11)
Based on the real estate registration information stored in the second storage unit, it is determined whether the owner of the farmland specified by the farmland specifying unit owns another farmland from the farmland, and the owner The cultivated land determination according to appendix 9 or appendix 10, wherein when the farmland is owned, whether or not the farmland is cultivated is determined based on whether or not the other farmland is being rented in the lease status information Method.

(Appendix 12)
Based on the real estate registration information stored in the second storage unit, the owner of the farmland specified by the farmland specifying unit is specified, and the purchase status of the agricultural work supplies for each owner of the farmland stored in the third storage unit is determined. The farming according to any one of appendix 9 to appendix 11, wherein in the representing agricultural product purchase information to be represented, whether or not the farmland is cultivated land is determined based on whether or not the farmwork supplies are purchased by the specified owner. Land determination method.

(Appendix 13)
Based on the real estate registration information stored in the second storage unit, the owner of the farmland specified by the farmland specifying unit is specified, and the shipment status of the crop for each owner of the farmland stored in the fourth storage unit is expressed. The cultivated land determination method according to any one of appendix 9 to appendix 12, in which whether or not the farmland is cultivated land is determined based on whether or not the crop is shipped by the identified owner in the shipping status information .

(Appendix 14)
Whether or not the farmland is cultivated land is determined based on whether or not the farmland existing around the farmland specified by the farmland specifying unit is estimated to be not planted based on the satellite image The cultivated land determination method according to any one of appendix 9 to appendix 13.

(Appendix 15)
The cultivated land determination method according to any one of appendix 9 to appendix 14, wherein when the farmland specified by the farmland specifying unit is not determined to be cultivated land, the information on the farmland is output as information on the abandoned cultivated land.

(Appendix 16)
According to the result of determining whether the farmland is cultivated land, an evaluation value is set for the farmland,
The cultivated land determination method according to supplementary note 15, wherein the evaluation value set for the farmland is compared with a predetermined value to recognize whether the farmland has not been determined to be cultivated land.

(Appendix 17)
On the computer,
Based on the satellite image, identify the farmland that is estimated not to be planted,
In the rental status information representing the rental status of each farmland stored in the first storage unit, a process including determining whether or not the farmland is cultivated based on whether or not the specified farmland is being leased. Cultivated land judgment program to be performed.

(Appendix 18)
Based on the real estate registration information stored in the second storage unit, the length of the farmland ownership period by the farmland owner identified by the farmland identification unit is identified, and the length of the farmland ownership period identified is specified. The cultivated land determination program according to supplementary note 17, which determines whether or not the farmland is cultivated land.

(Appendix 19)
Based on the real estate registration information stored in the second storage unit, it is determined whether the owner of the farmland specified by the farmland specifying unit owns another farmland from the farmland, and the owner The farmland determination according to appendix 17 or appendix 18, wherein when the farmland is owned, whether or not the farmland is cultivated is determined based on whether the other farmland is rented or not in the lease status information program.

(Appendix 20)
Based on the real estate registration information stored in the second storage unit, the owner of the farmland specified by the farmland specifying unit is specified, and the purchase status of the agricultural work supplies for each owner of the farmland stored in the third storage unit is determined. The farming according to any one of appendix 17 to appendix 19, wherein in the representing agricultural product purchase information to be represented, whether or not the farmland is cultivated land is determined based on whether or not the farmwork supplies are purchased by the identified owner Ground determination program.

(Appendix 21)
Based on the real estate registration information stored in the second storage unit, the owner of the farmland specified by the farmland specifying unit is specified, and the shipment status of the crop for each owner of the farmland stored in the fourth storage unit is expressed. 21. The cultivated land determination program according to any one of appendix 17 to appendix 20, which determines whether the farmland is cultivated land based on whether or not the crop is shipped by the identified owner in the shipping status information. .

(Appendix 22)
Whether or not the farmland is cultivated land is determined based on whether or not the farmland existing around the farmland specified by the farmland specifying unit is estimated to be not planted based on the satellite image The cultivated land determination program according to any one of appendix 17 to appendix 21.

(Appendix 23)
The cultivated land determination program according to any one of supplementary notes 17 to 22, which outputs information on the farmland as information on abandoned cultivated land when the farmland specified by the farmland specifying unit is not determined as cultivated land.

(Appendix 24)
According to the result of determining whether the farmland is cultivated land, an evaluation value is set for the farmland,
The cultivated land determination program according to appendix 23, wherein the evaluation value set for the farmland is compared with a predetermined value to recognize whether the farmland has not been determined to be cultivated land.

DESCRIPTION OF SYMBOLS 10 Cultivated land determination apparatus 12 Image acquisition part 14 Information acquisition part 16 Agricultural land identification part 18 Map information storage part 20 1st determination part 22 2nd determination part 24 3rd determination part 26 4th determination part 28 5th determination part 30 6th Determination unit 32 Output unit 50 Computer 52 CPU
54 Memory 56 Storage Unit 62 Cultivated Land Determination Program 90 Computer System 92 Satellite Image Server 94 Rental Status Server 96 Registration Information Server 98 Material Information Server 100 Shipping Status Server 104 Client Terminal

Claims (11)

Based on satellite images, an agricultural land identification unit for identifying agricultural land that is estimated not to be planted,
In the leasing status information representing the leasing status for each farmland stored in the first storage unit, it is determined whether or not the farmland is cultivated based on whether or not the farmland specified by the farmland specifying unit is rented. A first determination unit;
Based on the real estate registration information stored in the second storage unit, the owner of the farmland specified by the farmland specifying unit is specified, and the farm work supplies for each farmer through the predetermined group stored in the third storage unit In the agricultural supplies purchase information representing the purchase status of the farm, it is determined whether the farmland is cultivated land based on whether the specified owner has purchased agricultural supplies through the predetermined group within a predetermined period. A fourth determination unit;
Cultivated land determination device including Based on satellite images, an agricultural land identification unit for identifying agricultural land that is estimated not to be planted,
In the leasing status information representing the leasing status for each farmland stored in the first storage unit, it is determined whether or not the farmland is cultivated based on whether or not the farmland specified by the farmland specifying unit is rented. A first determination unit;
Based on the real estate registration information stored in the second storage unit, the owner of the farmland specified by the farmland specifying unit is specified, and the farmer's crops are shipped through the predetermined group stored in the fourth storage unit. A fifth determination unit that determines whether or not the farmland is cultivated land based on whether or not the farmer is shipped through the predetermined group within a predetermined period by the identified owner in the shipping status information representing the situation When,
Cultivated land determination device including Based on the real estate registration information stored in the second storage unit, the length of the farmland ownership period by the farmland owner identified by the farmland identification unit is identified, and the length of the farmland ownership period identified is specified. The cultivated land determination device according to claim 1 or 2, further comprising a second determination unit that determines whether or not the farmland is cultivated land. Based on the real estate registration information stored in the second storage unit, it is determined whether the owner of the farmland specified by the farmland specifying unit owns another farmland from the farmland, and the owner 3. A third determination unit that determines whether or not the farmland is cultivated land based on whether or not the other farmland is being leased in the rental status information when the farmland is owned. The cultivated land determination device according to any one of claims 3 to 4. Whether or not the farmland is cultivated land is determined based on whether or not the farmland existing around the farmland specified by the farmland specifying unit is estimated to be not planted based on the satellite image The cultivated land determination device according to any one of claims 1 to 4, further including a sixth determination unit. The output part which outputs the information on the farmland as the information on the abandoned farmland when the farmland identified by the farmland identification unit is not determined as the farmland is any one of claims 1 to 5. The cultivated land determination device described. At least one of the first determination unit to the sixth determination unit sets an evaluation value for the farmland according to a result of determining whether the farmland is cultivated land,
The cultivated land determination device according to claim 6, wherein the output unit recognizes whether or not the farmland has not been determined as cultivated land by comparing an evaluation value set in the farmland with a predetermined value. Based on the satellite image, identify the farmland that is estimated not to be planted,
In the rental status information representing the rental status for each farmland stored in the first storage unit, whether or not the farmland is cultivated is determined based on whether or not the specified farmland is being leased,
  Based on the real estate registration information stored in the second storage unit, the owner of the specified farmland is specified, and the purchase status of the agricultural work supplies for each farmer through the predetermined group stored in the third storage unit is represented. In the agricultural work supplies purchase information, it is determined whether the farmland is cultivated land based on whether the specified owner has purchased agricultural supplies through the predetermined group within a predetermined period.
A cultivated land determination method in which a computer executes processing including the above. Based on the satellite image, identify the farmland that is estimated not to be planted,
In the rental status information representing the rental status for each farmland stored in the first storage unit, whether or not the farmland is cultivated is determined based on whether or not the specified farmland is being leased,
Based on the real estate registration information stored in the second storage unit, the owner of the specified farmland is specified, and the shipping status representing the shipping status of the farmer's crops through the predetermined group stored in the fourth storage unit In the information, it is determined whether or not the farmland is cultivated land based on whether or not the crop is shipped through the predetermined group by the specified owner within a predetermined period.
A cultivated land determination method in which a computer executes processing including the above. On the computer,
Based on the satellite image, identify the farmland that is estimated not to be planted,
In the rental status information representing the rental status for each farmland stored in the first storage unit, whether or not the farmland is cultivated is determined based on whether or not the specified farmland is being leased,
  Based on the real estate registration information stored in the second storage unit, the owner of the specified farmland is specified, and the purchase status of the agricultural work supplies for each farmer through the predetermined group stored in the third storage unit is represented. In the agricultural work supplies purchase information, it is determined whether the farmland is cultivated land based on whether the specified owner has purchased agricultural supplies through the predetermined group within a predetermined period.
Cultivated land determination program for performing processing including the above. On the computer,
Based on the satellite image, identify the farmland that is estimated not to be planted,
In the rental status information representing the rental status for each farmland stored in the first storage unit, whether or not the farmland is cultivated is determined based on whether or not the specified farmland is being leased,
Based on the real estate registration information stored in the second storage unit, the owner of the specified farmland is specified, and the shipping status representing the shipping status of the farmer's crops through the predetermined group stored in the fourth storage unit In the information, it is determined whether or not the farmland is cultivated land based on whether or not the crop is shipped through the predetermined group by the specified owner within a predetermined period.
Cultivated land determination program for performing processing including the above.

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