JP7535243B2 - Grain inspection device and cultivation management system using said device - Google Patents

Description

The present invention relates to a grain inspection device for determining the quality of grains produced by farmers and other producers, and a cultivation management system that uses the device.

Traditionally, quality inspections of grains (e.g. brown rice and polished rice) produced by farmers and other such entities (grain inspections after they are shipped from the farm) have been stipulated by national law as "rice producers may undergo quality inspections" (Article 3 of the Agricultural Products Inspection Act). In other words, farmers and other rice producers currently proactively undergo quality inspections at JA (agricultural cooperatives) and other organizations for the purposes of conducting fair and smooth transactions, ensuring traceability along the rice distribution route, and gaining trust in the quality of their rice.

At JA (agricultural cooperatives) and other organizations, agricultural product inspectors currently visually inspect the quality of produce, but recently there has been progress in the development of grain quality discriminators that can measure the proportion of colored grains and other contaminants (see, for example, Patent Document 1), and these measuring devices are being used as a supplement. In addition, color sorters for removing colored grains and other contaminants have been made smaller and cheaper for use by farmers, while models with improved performance are also appearing (see, for example, Patent Document 2).

However, in the color sorter described in Patent Document 2, grains discolored by pests, grains damaged by discoloration, etc., unripe green grains, unhulled rice, milky grains, and foreign objects such as pebbles are all grouped together and sorted as defective products, and are distinguished from non-defective products. Then, for example, the weight of the refined products sorted and classified as non-defective products is compared with the weight of the sorted products sorted and classified as defective products to calculate the rate of defective products mixed into the raw material or the sorting rate of the color sorter (for example, Patent Document 3).
In other words, conventional color sorters could not check in detail the percentage of defective products that were colored by pests, damaged by discolored rice, unripe green rice, unhulled rice, milky white rice, or foreign objects such as pebbles. In the past, analysis of such defective products among defective products was carried out by separating the removed defective products into black cartons and visually checking them, or by feeding the defective products into a grain quality discriminator and analyzing them with a separate measuring device.

Furthermore, the criteria for identifying defective products using conventional color sorters change based on user adjustments, so it was not possible to feed back color-sorted sorting data, such as the rice cultivation conditions in the field for the following year, to farmers to use for the following year's cultivation management.

JP 2016-125867 A Patent No. 6052287 Japanese Patent Application Publication No. 10-216650

In consideration of the above problems, the present invention has as its technical objective the provision of a grain inspection device that can sort out defective grains from input grains and simultaneously measure the quality of the input grains. It also has as its technical objective the provision of a cultivation management system that effectively utilizes the data from this grain inspection device to help farmers manage rice cultivation for the following year.

In order to solve the above problems, the present invention provides a grain inspection device comprising: a chute arranged at an angle to allow raw material to be inspected to flow downward; optical detection means for detecting the objects to be inspected dropping from the bottom end of the chute; ejector means for selecting and rejecting the objects to be inspected based on the detection results by the optical detection means; a discharge hopper for separately discharging the objects to be inspected selected by the ejector means ; calculation means for classifying the objects to be inspected as good or defective based on the image pickup signal of the optical detection means, and further classifying the objects to be inspected that are judged to be defective into each defective factor and measuring the degree of contamination of the raw material for each defective factor; and communication means for transmitting the measurement results by the calculation means to a server,
The calculation means includes a comparison circuit serving as a first calculation means for distinguishing between good and defective objects, and a measurement circuit serving as a second calculation means for determining the number of objects for each defective factor for the objects judged to be defective by the comparison circuit separately from the comparison circuit, and measuring the degree of contamination of the raw material with each defective factor from the number of objects,
The communication means is connected to the server and the mobile terminal via a communication line, and the mobile terminal displays the measurement results, including the degree of contamination measured by the second calculation means, on a screen.

In the invention described in claim 2, the second calculation means calculates various characteristic quantities by using each of the R, G, and B signals obtained from the optical detection means, either alone or in combination, and performs calculation processing by adding, subtracting, multiplying , or dividing this value to determine the number of raw materials flowing and the number of defective grains due to each defective factor, and measures the degree of contamination of each defective factor from these results.

The invention described in claim 3 is characterized in that the defective factors are a plurality of defective factors selected from grains damaged by pests, grains damaged by discolored rice, green immature grains, unhulled rice, milky grains, or foreign objects.

The invention described in claim 4 provides a cultivation management system in which a grain preparation line including the grain inspection device described in any one of claims 1 to 3 , an agricultural data linking platform that aggregates agricultural data, a server that accumulates grain preparation and processing data in the grain preparation line, and a mobile terminal that provides cultivation management information to farmers are connected via a communication line,
The server is characterized by having a built-in cultivation management program that provides farmers with feedback on the current year's grain preparation and processing data and agricultural data from the agricultural data linkage platform, and provides them with cultivation management guidelines for the next year.

In a fifth aspect of the present invention, the grain preparation and processing data is the degree of contamination of each defective factor contained in the inspection object measured by a second calculation means of the grain inspection device.

The invention described in claim 6 is characterized in that the server is equipped with a maintenance program that provides farmers with feedback on the current year's grain preparation and processing data and agricultural data from the agricultural data linking platform, and provides maintenance information for the machines that make up the grain preparation line.

According to the invention of claim 1, there is provided a grain inspection device comprising: a chute arranged at an incline to allow raw material to be inspected to flow downward; optical detection means for detecting the objects to be inspected falling from the bottom end of the chute; ejector means for selecting and rejecting the objects to be inspected based on the detection results by the optical detection means; a discharge hopper for separately discharging the objects to be inspected selected by the ejector means ; calculation means for classifying the objects to be inspected as good or defective based on the image pickup signal of the optical detection means , and further classifying the objects to be inspected that are judged to be defective into each defective factor and measuring the degree of contamination of the raw material for each defective factor; and communication means for transmitting the measurement results by the calculation means to a server,
The calculation means includes a comparison circuit serving as a first calculation means for distinguishing between good and defective objects, and a measurement circuit serving as a second calculation means for determining the number of objects for each defective factor for the objects judged to be defective by the comparison circuit separately from the comparison circuit, and measuring the degree of contamination of the raw material with each defective factor from the number of objects,
The communication means is connected to the server and the mobile terminal via a communication line, and the mobile terminal displays the measurement results including the degree of contamination measured by the second calculation means on a screen, so that it is possible to not only simply separate the test objects into good and defective products, but also to examine in detail the proportion of each defective factor present in the raw material, and to measure the degree of contamination of each defective factor without having to take the trouble of feeding the test objects into a grain quality discriminator. Moreover, it is possible to check the degree on the screen of the mobile terminal.

In addition, according to the invention described in claim 2, the second calculation means calculates various feature quantities using each of the R, G, and B signals obtained from the optical detection means, either alone or in combination, and performs calculation processing by adding, subtracting, multiplying or dividing this value to determine the number of raw materials flowing and the number of defective grains due to each defective factor, and measures the degree of contamination of each defective factor from these results.As a result, it has become easy to distinguish between brown discolored rice and unhulled rice, and between green blue immature grains and white milky white grains, which were previously difficult to distinguish.

According to the invention described in claim 3, the defective factors can be selected from multiple options including grains damaged by pests, grains damaged by discolored rice, green immature grains, unhulled rice, milky grains, and foreign objects. This makes it possible to not only simply separate non-defective products from defective products, but also to measure the degree of contamination by multiple defective factors as desired by the user depending on the situation.

According to the invention described in claim 4, there is provided a cultivation management system in which a grain preparation line including the grain inspection device described in any one of claims 1 to 3 , an agricultural data linking platform that aggregates data related to agriculture, a server that accumulates data on preparation and processing of grain in the grain preparation line, and a mobile terminal that provides cultivation management information to farmers are connected via a communication line,
The server is equipped with a cultivation management program that feeds back to farmers the current year's grain preparation and processing data and the agricultural data from the agricultural data linkage platform and provides them with cultivation management guidelines for the next year.This makes it possible to effectively use data on the level of contamination of each defective factor for the current year measured by the grain inspection device to provide farmers with rice cultivation management guidelines for the next year (for example, the timing of irrigation, fertilization, and pesticide spraying for the following year) that will be useful for cultivation management.

Furthermore, according to the invention described in claim 5, the grain preparation and processing data is the degree of contamination of each defective factor contained in the inspected item measured by the second calculation means of the grain inspection device, so that the current year's crop situation can be visualized and provided to farmers in an easy-to-understand manner.

According to the invention described in claim 6, the server is equipped with a maintenance program that provides farmers with feedback on the current year's grain preparation and processing data and agricultural data from the agricultural data linkage platform, and provides maintenance information for the machinery that makes up the grain preparation line. For example, if the grain preparation and processing data is lower than average, this can be an indication that the capabilities of the machinery in the grain preparation line are inferior to normal, and an alarm can be sounded to inform farmers to adjust and maintain the machinery.

1 is a block diagram showing a grain inspection device of the present invention incorporated into a grain preparation line and configured as a cultivation management system. 1 is a schematic cross-sectional side view of a grain inspection device. 2 is a block diagram showing a control circuit of the grain inspection device. FIG. 13 is a diagram showing an example of analysis results displayed on a screen of a display unit. This is an example of cultivation management provided to farmers, displayed on a mobile terminal screen of a cultivation management system.

1 is a block diagram of a cultivation management system in which the grain inspection device of the present invention is incorporated into a grain preparation line. This cultivation management system 10 is intended for medium to large-scale farms, such as individual farmers and agricultural corporations, with field areas of 1 to 3 hectares.
1, a cultivation management system 10 connects a grain preparation line 20, a server 30 that accumulates data on preparation and processing of grains in the grain preparation line, a mobile terminal 40, and an agricultural data linking platform 50 that aggregates all data related to agriculture by private or public institutions, via a communication line 60. The communication line 60 is configured with a network such as a LAN (Local Area Network) or an Internet line. This network may be wired or wireless.

(Grain preparation line)
The grain processing line 20 is installed in a barn of an individual farmer, or in a building such as a rice center or factory of an agricultural corporation. The grain processing line 20 is indoor machinery (barn machinery) fixed inside a building, as opposed to field machinery (e.g., combine harvester) that harvests while moving within a field, and can transport crops harvested by the field machinery and process them. The grain preparation line 20 is composed of, for example, a grain dryer (not shown) that dries grains, a cooling tank (not shown) in which the dried rice dried by the grain dryer is allowed to cool, a rice huller and sorter 201 that husks the rice after cooling and turns it into brown rice, a rice sorter 202 that sorts the brown rice obtained by the rice huller and sorter 201 based on the grain diameter (thickness (size)) into standard grain sizes and non-standard grain sizes, a grain inspection device 203 that performs grain inspection on the refined brown rice obtained by the rice sorter 202 using an optical method, and a weighing and bagging machine 204 that weighs, bags, and ships the brown rice after it has been inspected by the grain inspection device 203, all connected in a single line.

The rice husker and sorter 201 is equipped with a husker rate sensor 201a that samples the husked ground rice, transmits sensor light projected from a light-emitting element to a light-receiving element, and determines whether the ground rice is brown rice or unhulled rice based on the transmittance of the sensor light through the ground rice. The rice husker and sorter 201 also has an electrical quantity measuring unit 201b that measures the electrical quantities (e.g., current value, power value, or amount of power) of its drive unit. The properties of the unhulled rice supplied to the rice husker and sorter 201 can be known based on whether the measured values from the husker rate sensor 201a and the electrical quantity measuring unit 201b are within the standards or not.

The rice sorting machine 202 is equipped with a sorting mesh tube that separates brown rice into ripe and immature grains. If there is a large amount of immature grains mixed in, the commercial value decreases and it is an indicator of poor rice growth conditions for that year. For example, abnormally low temperatures and extreme lack of sunlight during the rice growing season, or abnormally high temperatures due to continuous heatwaves during the rice growing season, can cause poor rice growth, resulting in extremely poor kernels (immature kernels) inside the rice kernels, or infertile kernels that do not ripen.

The rice sorting machine 202 is equipped with a sized rice weigher 202a that receives and weighs the sized rice that does not pass through the sorting tube, and a waste rice weigher 202b that receives and weighs the immature rice that passes through the sorting tube. By knowing the sorting ratio of sized rice to immature rice, it is possible to calculate the yield of sized rice and to use it as an indicator for determining the growth condition of rice for that year.

The grain inspection device 203 separates the grained brown rice, which has been sorted by grain size using the rice sorting machine 202, into good and bad products, and can also perform a detailed examination of the percentage of each defective factor present in the raw material, including discolored grains caused by pests, damaged grains caused by discoloration, green immature grains, unhulled rice, milky grains, and pebbles.

As shown in FIG. 2, the grain inspection device 203 includes an inspection object supply unit 203a, a chute 203b, an optical sorting unit 203c, and a discharge hopper 203d. The inspection object supply unit 203a includes a tank 210 and a vibrating feeder 211 that supplies the inspection object to the chute 203b.

The chute 203b has a predetermined width and is disposed at an incline below the tip end of the vibrating feeder 211, and allows the objects to be inspected supplied from the vibrating feeder 211 to flow naturally downward.
The optical sorting section 203c comprises a pair of optical detection devices 212a, 212b arranged in front of and behind the falling trajectory of the object to be inspected falling from the bottom end of the chute 203b, a calculation means 213 which distinguishes between good and defective objects based on the image pickup signals of the optical detection devices 212a, 212b and measures the degree of contamination of the input raw materials with six types of defective factors, namely, discolored grains caused by pests etc., grains damaged by discolored rice etc., green immature grains, unhulled rice, discolored grains such as milky grains, and foreign matter, and an ejector device 215 which distinguishes between good and defective objects by the calculation means 213 and removes the defective objects based on the discrimination results.

Reference numeral 214 denotes an ejector drive circuit that outputs an ejection signal from the calculation means 213 to the ejector device 215.

The discharge hopper 203d has a non-defective product discharge trough 216 and a defective product discharge trough 217, and the objects to be inspected are separated into non-defective and defective products and discharged using an ejector device 215.

The weighing bagging machine 204 places a container 204b, such as a rice bag, and a bag stand 204c on the quality weighing device 204a. The grain is discharged into the container 204b by opening a shutter (not shown). When the grain reaches a specified weight, the shutter automatically closes and weighing and bagging are completed.

In the above-mentioned grain preparation line 20, for example, the seven types of sensors and control means shown in FIG. 1 are connected to the communication line 60.

(server)
The server 30 has general-purpose basic functions such as a web server that transmits and receives information to and from external terminals, a file server that accumulates various data and functions as a database, and an application server that distributes applications that need to be installed on client computers and tablet terminals. The server 30 is connected to a communication line 60.

(Mobile device)
The mobile terminals 40 are preferably a plurality of tablet terminals for viewing that can be carried and viewed at the site, such as a farm field or a grain preparation line. The tablet terminals may be replaced with a general-purpose notebook personal computer or a smartphone. The mobile terminals 40 are connected to a communication line 60.

(Agricultural data sharing platform)
The agricultural data collaboration platform 50 is hosted by private or public institutions and aims to provide new services that utilize data and enable farmers to make strategic management decisions by compiling and providing public data related to agriculture, such as soil, market conditions, and weather, as well as various paid data from private companies.

The agricultural data linking platform 50 shown in FIG. 1 can utilize, for example, "WAGRI" sponsored by the National Agriculture and Food Research Organization. This platform 50 is configured with an agricultural database 501 that stores past yield data, market data, soil data, and farmland data, a meteorological database 502 that stores agricultural meteorological data, and a past history database 503 that allows past history to be referenced. These databases 501, 502, and 503 are provided in the form of application programming interfaces (APIs), and some of the software and applications are made publicly available to the outside world, so that software and functions developed by third parties who use these databases can be shared. This platform 50 is connected to a communication line 60.

(Control circuit configuration of grain inspection device)
Next, a detailed description will be given of the control circuit of the grain inspection device 203. The calculation means 213 of the grain inspection device 203 judges the inspected object as good or defective, and measures the degree of contamination of the raw material with each defective factor, such as grains discolored by pests or the like, grains damaged by discolored rice or the like, green immature grains, unhulled rice, grains discolored such as milky white grains, and foreign matter such as pebbles.

Figure 3 is a block diagram showing the control circuit of the grain inspection device 203. As shown in Figure 3, the optical detection device (imaging camera) 212 is composed of a CCD line sensor, and is equipped with an R element 220, a G element 221, and a B element 222 that are sensitive to the colors R (red), G (green), and B (blue). The light receiving signal of the optical detection device (imaging camera) 212 is supplied to the R element 220, G element 221, and B element 222, and is photoelectrically converted into an R signal, a G signal, and a B signal, respectively, and output.

The R, G, and B signals are input to amplifiers 223 , 224 , and 225 provided in the calculation means 213 , respectively, and are further input to a signal processing circuit 226 .
The signal processing circuit 226 calculates various feature amounts using each of the R, G, and B signals individually or in combination, and performs signal conversion by carrying out arithmetic processing such as addition, subtraction, multiplication , or division.
This signal conversion characterizes the signal received by the optical detection device (image capture camera) 212 to identify the object to be inspected. This signal is input to a comparison circuit 227a, which judges whether the object to be inspected is good or bad, and is also input to a measurement circuit 227b, which measures the degree of contamination by each defective factor.
The comparison circuit 227a corresponds to a first calculation means in the present invention, and the measurement circuit 227b corresponds to a second calculation means in the present invention.

Reference numeral 228 denotes a delay circuit, which determines the ejection timing according to the distance between the position where the object to be inspected is observed by the optical detection device (imaging camera) 212 and the rejection position where the ejector device 215 rejects defective products. A rejection signal is output from the comparison circuit 227a to the ejector drive circuit 214 via the delay circuit 228. The rejection signal determined by the ejector drive circuit 214 is output to the ejector device 215.

(Measuring algorithm for the degree of contamination of each defect factor in grain inspection equipment)
In the signal processing circuit 226 shown in Fig. 3, the feature amount is calculated from the R, G, and B values of each grain of the inspection object by various combinations such as the spectral ratio R/G and the spectral ratio R/B. Then, this calculated value is compared with a discriminant stored in the measurement circuit 227b (see, for example, Figs. 6 to 10 of JP-A-9-292344) to classify, for example, into six types of defective factors. If a program is prepared in advance for the six types of defective factor classifications, such as (a) classification of grains damaged by pests (grains damaged by stink bugs) and other grains as good products, (b) classification of grains colored by discolored rice or the like and other grains as good products, (c) classification of green immature grains and other grains as good products, (d) classification of milky white grains and other grains as good products, (e) classification of unhulled grains and other grains as good products, and (f) classification of foreign matter and other grains as good products, the statistical processing of the degree of contamination of each defective factor can be quickly performed.

(Communication unit of grain inspection device)
3 denotes a communication unit of the grain inspection device, which transmits the measured degree of contamination of each defective factor as part of preparation and processing data to the server 30 via the communication line 60. The data stored in the server 30 can be confirmed using the mobile terminal 40.

Figure 4 is an example of the analysis results displayed on the screen 40a of the mobile terminal 40. Figure 4(a) shows the results of classifying the inspected objects into (e) unhulled rice and the rest as good products, and in this example, 93% of the inspected objects were good products and 7% were defective unhulled rice. Figure 4(b) shows the detailed analysis results (pie chart) of the defective factors contained in the raw material obtained by tallying up the measurements for six types of defective factors. In this example, 93% of the inspected objects were good products and 7% were defective products, and of the defective products, 2% were unripe green rice and 1% each of the remaining defective factors.

(Cultivation management system)
A cultivation management program that provides farmers with cultivation management guidelines for the next year is incorporated in the server 30 of the cultivation management system 10 shown in Fig. 1. In other words, this cultivation management program refers to data obtained from the various processing machines of the grain processing line 20 and data obtained from the various servers of the agricultural data linking platform 50, and provides feedback to farmers on the current year's rice cultivation conditions in the field, etc., which can be used for the next year's cultivation management (for example, the timing of irrigation, fertilization, and pesticide spraying for the next year).

Figure 5 shows an example of cultivation management provided to farmers, displayed on the screen 40a of the mobile terminal 40 of the cultivation management system 10. In Figure 5, the farm field number, various data after the grain harvested from this field number is processed on the grain processing line 10, and data obtained from the agricultural data linking platform 50 are fed back to the farmer, and advice on the cultivation management for the next year is written based on this.

For example, in FIG. 5, in field No. 1, the results of grain preparation and processing are obtained from various data on the grain preparation line 10 and recorded. From this record, when the proportion of waste grains in the rice sorter 202 is higher than average, and the proportion of immature grains in the grain inspection device 203 is higher than average, the reasons and factors for this can be obtained by referencing the agricultural data linkage platform 50. From the above, as measures for the next year, cultivation management guidelines (advice) that take into account "fertilization management" and "harvesting timing" can be provided to farmers.

Similarly, in the field No. 2 in Figure 5, the farmer can be provided with a cultivation management guideline (advice) for the next year to consider "management before and after harvesting" taking into account rain at harvest time, and in the field No. 3, the farmer can be provided with a cultivation management guideline (advice) for the next year to emphasize "seed rice disinfection and pest control plans."

In addition to such cultivation management guidelines (advice), if the husking rate of the rice husking and sorting machine 201 is lower than average and the proportion of unhulled rice in the grain inspection device 203 is higher than average, an alarm can be issued on the screen 40a of the mobile terminal 40. If the husking rate is lower than average, the capacity of the rice husking and sorting machine 201 may be inferior to normal, so it is a good idea to issue an alarm to inform the farmer to adjust and maintain the rice husking and sorting machine 201.

Although several embodiments of the present invention have been described above, the above-mentioned embodiments of the invention are intended to facilitate understanding of the present invention and are not intended to limit the present invention. The present invention may be modified or improved without departing from its spirit, and the present invention includes equivalents thereof. Furthermore, the components described in the claims and specification may be combined or omitted to the extent that at least part of the above-mentioned problems can be solved or at least part of the effects can be achieved.

10 Cultivation management system 20 Grain preparation line 30 Server 40 Mobile terminal 50 Agricultural data linking platform 60 Communication line 201 Rice huller and sorter 201a Husking rate sensor 201b Electric quantity measuring unit 202 Rice sorter 202a Grain size measuring device 202b Waste grain measuring device 203 Grain inspection device 203a Inspection object supply unit 203b Chute 203c Optical sorting unit 203d Discharge hopper 210 Tank 211 Vibration feeder 212a Optical detection device 212b Optical detection device 213 Calculation means 214 Ejector drive circuit 215 Ejector device 216 Good product discharge gutter 217 Defective product discharge gutter 220 R element 221 G element 222 B element 223 Amplifier 224 Amplifier 225 Amplifier 226 Signal processing circuit 227a Comparison circuit 227b Measurement circuit 228 Delay circuit 230 Communication unit 204 Weighing bagging machine 204a Quality measuring machine 204b Container 204c Bag stander 501 Database 502 Database 503 Database

Claims (6)

A chute arranged at an incline to allow the raw material to be inspected to flow downward;
an optical detection means for detecting the test object dropping from the bottom end of the chute;
an ejector means for selectively removing the object to be inspected based on a detection result by the optical detection means;
a discharge hopper for discharging each of the objects to be inspected selected by the ejector means;
a calculation means for discriminating the object to be inspected as a non-defective or defective object based on the image pickup signal of the optical detection means , and for further discriminating the object to be inspected as a defective object into each defective factor, and for measuring the degree of contamination of the raw material for each defective factor;
A communication means for transmitting the measurement result by the calculation means to a server;
A grain inspection device comprising:
The calculation means includes a comparison circuit serving as a first calculation means for distinguishing between good and defective objects, and a measurement circuit serving as a second calculation means for determining the number of objects for each defective factor for the objects judged to be defective by the comparison circuit separately from the comparison circuit, and measuring the degree of contamination of the raw material with each defective factor from the number of objects,
the communication means is connected to the server and the mobile terminal via a communication line;
The grain inspection device is characterized in that the mobile terminal displays the measurement results including the degree of contamination measured by the second calculation means on a screen. The grain inspection device according to claim 1, wherein the second calculation means calculates various feature quantities by using each of the R, G, and B signals of the object to be inspected obtained from the optical detection means, either individually or in combination, and performs calculation processing of these values by addition, subtraction, multiplication, or division to obtain the number of raw materials flowing and the number of defective grains due to each defective factor, and measures the degree of contamination of each defective factor from these results. The grain inspection device according to claim 1 or 2, characterized in that the defect factors are a plurality of defect factors selected from grains damaged by pests, grains damaged by discolored rice, green immature grains, unhulled rice, milky grains, or foreign objects. A grain preparation line including the grain inspection device according to any one of claims 1 to 3;
An agricultural data sharing platform that aggregates agricultural data,
A server that accumulates data on grain preparation and processing in the grain preparation line;
A mobile terminal that provides cultivation management information to farmers,
A cultivation management system connected via a communication line,
The server is equipped with a cultivation management program that provides farmers with feedback on the current year's grain preparation and processing data and agricultural data from the agricultural data linkage platform, and provides farmers with cultivation management guidelines for the next year. The cultivation management system according to claim 4, wherein the grain preparation and processing data is the degree of contamination of each defective factor contained in the inspected object measured by the second calculation means of the grain inspection device. The cultivation management system according to claim 4, wherein the server is equipped with a maintenance program that provides farmers with feedback on the current year's grain preparation and processing data and agricultural data from the agricultural data linking platform, and that provides maintenance information for the machines that make up the grain preparation line.

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