Information processing device, information processing method, and information processing program

Abstract

To grasp a state of an environment in which breeding of a domestic animal is performed, in order to breed the domestic animal in a sound environment.SOLUTION: A plurality of domestic animals bred in a predetermined region are monitored, and location information is acquired, the location information indicating a cell in which each domestic animal stays among a plurality of cells obtained by virtually dividing the region. A log is created in which a monitor result, the location information, and time are associated with each other. An environmental state of each cell is estimated on the basis of the log.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an information processing device, an information processing method, and an information processing program, and more particularly to an information processing device, an information processing method, and an information processing program for understanding the state of the breeding environment of livestock animals. [Background technology]

[0002] Patent Documents 1 and 2 disclose techniques for understanding the state of the rearing environment of livestock animals. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-128688 [Patent Document 2] Patent Publication No. 2021-103352 Summary of the Invention [Problem to be solved by the invention]

[0004] The following analysis has been made from the perspective of the present invention, and the disclosures of the above-mentioned prior art documents are incorporated herein by reference.

[0005] Patent Documents 1 and 2 have the following problems. In Patent Document 1, the state of the environment in which livestock animals are raised is determined based on the temperature, humidity, and other factors of the rearing environment. Therefore, there is a problem in that it is not possible to distinguish between a healthy and a poor environment for rearing livestock animals unless there is a difference in temperature, humidity, and other factors. There is also a problem in that it is only possible to determine the state of the area where the thermometer or hygrometer is installed. In this regard, it is not realistic to distribute thermometers and hygrometers evenly throughout a livestock barn, etc., in terms of cost, etc.

[0006] In Patent Document 2, the state of the rearing environment is grasped by identifying rearing rooms where the health condition of livestock animals is abnormal. In other words, since it is assumed that the health condition of livestock animals will become abnormal in poor rearing environments, it cannot be said that livestock animals are being reared in a healthy environment.

[0007] Therefore, an object of the present invention is to provide a technique for understanding the state of the environment in which livestock animals are raised, in order to raise livestock animals in a healthy environment. [Means for solving the problem]

[0008] According to a first aspect of the present invention, a monitoring unit for monitoring a plurality of livestock animals kept within a predetermined area; a location acquisition unit that acquires location information indicating in which of a plurality of cells the area is virtually divided each livestock animal is staying; a log creating unit that creates a log in which the monitoring result by the monitor unit, the location information acquired by the location acquiring unit, and time are associated with each other; an environmental state estimation unit that estimates an environmental state of each cell based on the log; An information processing device comprising:

[0009] According to a second aspect of the present invention, a monitoring step of monitoring a plurality of livestock animals kept within a predetermined area; a position acquisition step of acquiring position information indicating in which of a plurality of cells obtained by virtually dividing the area each livestock animal is staying; a log creation step of creating a log in which the monitoring result obtained by the monitoring step, the position information obtained by the position acquisition step, and time are associated with each other; an environmental state estimation step of estimating an environmental state of each cell based on the log; An information processing method is provided, including:

[0010] According to a third aspect of the present invention, a monitoring process for monitoring a plurality of livestock animals kept within a predetermined area; a location acquisition process for acquiring location information indicating in which of a plurality of cells the area is virtually divided each livestock animal is staying; a log creation process for creating a log in which the monitoring result of the monitoring process, the location information acquired by the location acquisition process, and time are associated with each other; an environmental state estimation process for estimating an environmental state of each cell based on the log; An information processing program is provided that causes a computer to execute the above. [Effects of the Invention]

[0011] According to each aspect of the present invention, there are provided devices, methods, and programs that contribute to understanding the state of the environment in which livestock animals are raised, in order to raise livestock animals in a healthy environment. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a block diagram showing a configuration of an information processing device 100. FIG. [Figure 2] FIG. 2 is a diagram illustrating a cell according to the present invention. [Figure 3] FIG. 10 is a diagram for explaining a case assumed in the present invention. [Figure 4] 1 is a sequence diagram showing the flow of processing by the information processing device 100. FIG. [Figure 5] FIG. 10 is a diagram for explaining a case assumed in the present invention. [Figure 6] FIG. 10 is a diagram for explaining a case assumed in the present invention. [Figure 7] FIG. 10 is a diagram for explaining a case assumed in the present invention. [Figure 8] FIG. 10 is a diagram for explaining a case assumed in the present invention. [Figure 9] FIG. 10 is a diagram for explaining a case assumed in the present invention. [Figure 10]FIG. 10 is a diagram for explaining a case assumed in the present invention. [Figure 11] 1 is a block diagram showing a configuration of an information processing device 100. FIG. [Figure 12] FIG. 1 is a diagram illustrating a computer as an information processing device 100. DETAILED DESCRIPTION OF THE INVENTION

[0013] Preferred embodiments of the present invention will be described in detail with reference to the drawings. Note that the reference numerals used in the following description are used for convenience to identify each element as an example to facilitate understanding, and are not intended to limit the present invention to the illustrated embodiment. Furthermore, the connecting lines between blocks in each drawing include both bidirectional and unidirectional lines. Unidirectional arrows are used to schematically indicate the flow of the main signal (data) and do not exclude bidirectionality. Furthermore, although not explicitly shown, input and output ports exist at the input and output ends of each connecting line in the circuit diagrams, block diagrams, internal configuration diagrams, connection diagrams, and the like shown in this disclosure. The same applies to input and output interfaces.

[0014] First, an overview of the present invention will be described. As shown in FIG. 1, an information processing device 100 of the present invention includes a monitor unit 10, a position acquisition unit 20, a log creation unit 30, and an environmental state estimation unit 40. The monitor unit 10 monitors a plurality of livestock animals kept in a predetermined area. The position acquisition unit 20 acquires position information indicating in which of a plurality of cells, which are virtually divided into the area, each livestock animal is staying. The log creation unit 30 creates a log that associates the monitoring results by the monitor unit 10, the position information acquired by the position acquisition unit 20, and time. The environmental state estimation unit 40 estimates the environmental state of each cell based on the log.

[0015] To explain with specific examples, in the present invention, livestock animals are exemplified by cows, and the area is also referred to as a rearing area, particularly exemplified by a cowshed or pasture. Here, the rearing area has a certain size, as it is determined according to the size and number of livestock being reared. It is difficult to maintain uniform environmental conditions (e.g., temperature, humidity, light exposure, straw bedding thickness, floor cleanliness, floor slope, floor smoothness, insects, puddles, rain leaks, etc.) in this spacious rearing area, and environmental conditions vary depending on the location. Considering economy, efficiency, and productivity, rearing areas cannot be infinitely large. Therefore, livestock animals are usually reared in a rearing area of ​​the minimum size that allows them to be adequately dispersed and does not cause stress, i.e., does not cause crowding stress. The occurrence of uneven crowding and dispersion of livestock in such a rearing area suggests that some kind of environmental stress source greater than crowding stress exists in the areas where the livestock are sparsely populated. Therefore, in the present invention, when an imbalance in the crowding or dispersion of livestock animals occurs within a rearing area, the environmental conditions in the area where the livestock animals are sparse are sensed, accumulated, and analyzed (this may be learned using machine learning, etc.). In this way, the present invention can obtain the conditions under which the livestock animals are or are not subjected to environmental stress. Based on the accumulated and analyzed results of the conditions under which the livestock animals are or are not subjected to environmental stress, the environment throughout the rearing area can be maintained as suitable for the livestock animals, and a rearing environment free of crowding stress and environmental stress can be realized.

[0016] Based on the configuration of the information processing device 100, the environmental state estimation unit 40 identifies cells where livestock animals were crowded together from the log and estimates cells other than the identified cells as having a worse environmental state than the identified cells. That is, although livestock animals in cells where livestock animals were crowded together will suffer from crowding stress, it is estimated that the environment is better for the livestock animals than the other cells. In other words, it is estimated that the other cells contain environmental stressors and are therefore poor environments. Such estimation results are notified to, for example, a caretaker, who then removes the environmental stressors. In other words, according to the present invention, the state of the environment in which livestock animals are raised can be grasped in order to raise livestock animals in a healthy environment.

[0017] In terms of comparison with the prior art, Patent Document 1 grasps the state of the environment in which livestock animals are kept based on temperature, humidity, etc., and is therefore unable to detect the presence of environmental stressors other than temperature and humidity (e.g., insects, puddles, leaks, etc.). In contrast, the present invention estimates the environmental state of each cell based on the results of monitoring the livestock animals. Even with the present invention, it is not possible to specifically identify the source of environmental stress, but it can estimate the presence of that source. Based on these estimation results, a caretaker can identify the source of environmental stress on-site and carry out environmental improvement work, thereby maintaining the environment of the entire rearing area suitable for livestock animals and realizing a rearing environment free of crowding stress and environmental stress.

[0018] While Patent Document 2 can be said to judge the quality of the rearing environment for each rearing room, it cannot identify the location within the rearing room where factors that cause the rearing environment to deteriorate exist. On the other hand, the present invention can estimate the environmental condition for each of multiple cells that are virtually divided into an area (rearing room).

[0019] [Embodiment 1] The information processing device 100 of the present invention will be described in more detail below as a first embodiment.

[0020] As in the above overview, the information processing device 100 includes a monitor unit 10, a position acquisition unit 20, a log creation unit 30, and an environmental state estimation unit 40 (see FIG. 1).

[0021] The monitor unit 10 monitors a plurality of livestock animals kept in a predetermined area. Specifically, the monitor unit 10 is exemplified by a camera.

[0022] The location acquisition unit 20 acquires location information indicating in which of a plurality of cells the area is virtually divided each livestock animal is staying. The relationship between the area and the cells is exemplified, for example, in FIG. 2. When referring to a cell individually, the number shown in FIG. 2 will be used, for example, as "cell (1)." Note that cells are a concept in virtual space, and cells are not separated by fences or the like. In other words, livestock animals can move between cells. Furthermore, cells do not need to be a single unit obtained by dividing the area into a grid, nor do they need to be rectangular, nor do they need to be of uniform size.

[0023] For example, the location acquisition unit 20 acquires location information based on an image captured by a camera serving as the monitor unit 10. Alternatively, the location acquisition unit 20 is exemplified by a wireless communication device, such as an RFID (radio frequency identifier) ​​reader, that performs wireless communication with tags worn by livestock animals. Such wireless communication devices are expected to be embedded in several locations underground within the area or hung from several locations on the ceiling. In any case, any technology that can acquire location information indicating the locations where livestock animals are staying can be applied as the location acquisition unit 20.

[0024] The log creation unit 30 creates a log that associates the monitoring results from the monitor unit 10, the location information acquired by the location acquisition unit 20, and the time. As a specific example, in a case where livestock animals with identification numbers 1 to 4 are crowded together in cell (10) at 6 p.m. as shown in FIG. 3(A), the log shown in FIG. 3(B) is created by the log creation unit 30. The administrator can also view the log created by the log creation unit 30 as needed.

[0025] The environmental state estimation unit 40 estimates the environmental state of each cell based on the log. In particular, in the first embodiment, the environmental state estimation unit 40 identifies a cell where livestock animals have been congregated from the log, and estimates that cells other than the identified cell have a worse environmental state than the identified cell. Furthermore, the environmental state estimation unit 40 estimates that the identified cell has a better environmental state.

[0026] The following describes the flow of processing by the information processing device 100. As shown in Fig. 4, the information processing device 100 monitors livestock animals to acquire location information, and creates a log that associates the monitoring results with the location information and time (step S01). The information processing device 100 then estimates the environmental state of each cell based on the log (step S02). Note that the log can be created periodically (for example, every minute or every 10 minutes), and the environmental state can be estimated at any timing (for example, when an instruction from an administrator is received).

[0027] [Embodiment 2] In the first embodiment, the environmental state of each cell is estimated based on the density of livestock animals, but in the second embodiment, the environmental state of each cell is estimated based on the degree of stress experienced by the livestock animals. The following describes the differences from the first embodiment.

[0028] The information processing device 100 of the second embodiment includes, as in the first embodiment, a monitor unit 10, a position acquisition unit 20, a log creation unit 30, and an environmental state estimation unit 40 (see FIG. 1).

[0029] The monitor unit 10 monitors the stress level of livestock animals. The stress level may be measured by monitoring biological information such as the cow's heart rate. Alternatively, an increase in stress level may be detected from images captured by a camera capturing an image within a certain area. For example, it is known that cows repeatedly move their tongues around when stressed. If this behavior is detected in an image, it may be determined that the livestock animal is stressed. Alternatively, if the cow exhibits abnormal behavior such as jumping, it may be determined that the stress level has increased. Furthermore, the presence or absence of stress in livestock animals may be determined based on specific sounds, coughing sounds, facial expressions (such as sticking out the tongue, drooling, tail movements), and activity levels (such as wandering, sleeping, or restlessness) of the livestock animal. In any case, any technology capable of detecting stress in livestock animals can be used as the monitor unit 10.

[0030] The environmental state estimation unit 40 identifies a cell where the livestock animal was staying in a stressed state from the log, and estimates that the cell is a cell where an environmental stress source exists.

[0031] [Case 1] For example, in the case of a livestock animal that moves from cell (8) to cell (3) as shown in Fig. 5(A), and experiences stress in cell (3) but continues to stay there, the log shown in Fig. 5(B) is created. In this case, an increase in the stress level is observed in cell (3), so the environmental state estimation unit 40 estimates that cell (3) is a cell where an environmental stress source exists.

[0032] [Case 2] As shown in FIG. 6(A), in a case where a livestock animal is in a stressed state in cell (1) at 8:00 a.m. and moves to cell (16) at 6:00 p.m. but remains in a stressed state, the log shown in FIG. 6(B) is created. In this case, the environmental state estimation unit 40 estimates cells (1) and (16) as cells containing an environmental stress source. However, if the log shows that the livestock animal wandered within the area in search of a comfortable place between 8:00 a.m. and 6:00 p.m., the environmental state estimation unit 40 estimates the entire area (all cells) as cells containing an environmental stress source. The environmental state estimation unit 40 also suggests that the livestock animal may be stressed due to factors other than the environment, such as dissatisfaction with its feed.

[0033] [Case 3] As shown in Figure 7(A), in a case where a livestock animal with identification number 1 is staying in cell (3) in a stressed state at 8:00 in the morning, and a livestock animal with identification number 2 is staying in cell (3) in a stressed state at 18:00 in the evening, the log shown in Figure 7(B) is created. In such a case, since both livestock animals with identification numbers 1 and 2 are stressed in cell (3), the environmental state estimation unit 40 strongly estimates that cell (3) is a cell where an environmental stress source exists.

[0034] [Case 4] As shown in FIG. 8(A), in a case where a livestock animal with identification number 3 is in cell (2) in a stressed state at 8:00 a.m., and a livestock animal with identification number 4 is in cell (2) without stress at 6:00 p.m., a log like that shown in FIG. 8(B) is created. In this case, it is found that the livestock animal with identification number 4 was in cell (2) without stress, but the livestock animal with identification number 3 was in cell (2) in a stressed state. Therefore, the environmental state estimation unit 40 estimates cell (2) as a cell without an environmental stress source, while suggesting that the livestock animal with identification number 3 may be experiencing a stress source due to factors other than the environment. Alternatively, the environmental state estimation unit 40 suggests the presence of an environmental stress source (e.g., a bright morning sun) in cell (2) that is present at 8:00 a.m. but has resolved by 6:00 p.m.

[0035] [Case 5] As shown in Fig. 9(A), in a case where livestock animals with identification numbers 5 and 6 are staying in cell 10 without stress, a log shown in Fig. 9(B) is created. In such a case, since multiple livestock animals are crowded in cell 10, environmental state estimation unit 40 estimates that cell 10 is in a good environmental state.

[0036] [Case 6] As shown in FIG. 10(A), in the case where livestock animals with identification numbers 5 to 8 are staying in cell (10) in a stressed state, the log shown in FIG. 10(B) is created. This case is assumed to be a continuation (6:00 PM) of case 5 (8:00 AM). In this case, cell (10) is estimated to be in a good environmental state at 8:00 AM. The stress experienced by the four livestock animals at 6:00 PM is considered to be crowding stress caused by overcrowding. Therefore, the environmental state estimation unit 40 estimates cell (10) to be in a good environmental state.

[0037] The identification of livestock animals may be performed, for example, by capturing an image of a tag worn by the livestock animal with a camera, or by using a wireless communication device such as an RFID reader.

[0038] [Embodiment 3] In the present invention, the causes and conditions of the quality of the environment of each cell may be estimated by making a composite judgment based on at least one of basic information about livestock animals, weather information, logs, and monitoring results. Note that the following will describe the differences from embodiments 1 and 2 as embodiment 3.

[0039] The information processing apparatus 100 of the third embodiment further includes an environmental condition estimation unit 50 as shown in FIG.

[0040] The environmental condition estimation unit 50 estimates the causes and conditions of the quality of the environment in each cell by making a composite judgment based on at least one of the basic information of the livestock animals, weather information, logs, and monitoring results from the monitoring unit.

[0041] Basic information about livestock animals includes, for example, the likelihood / difficulty of weight gain and physical growth, correlation with the amount of food eaten by livestock animals, the likelihood / difficulty of injury or illness, etc. Weather information includes, for example, the temperature, humidity, wind speed, weather, etc. Information other than the above may also be used as long as it can be used to estimate environmental conditions.

[0042] The estimation method of the environmental condition estimation unit 50 is not particularly limited, and may be, for example, analysis / estimation by machine learning, or multiple estimation models may be stored in advance and a determination may be made based on which estimation model is closest to the estimation conditions.

[0043] For example, the location and time at which the livestock animal was staying is extracted from the log information, and the changes in the weight and skeleton of the livestock animal are extracted from the basic information of the livestock animal, and from this information the environmental condition estimation unit 50 estimates whether the cell is an environment suitable for fattening livestock animals.

[0044] For example, when the environmental condition estimation unit 40 references the log information of a cell that has been estimated to have an environmental stress source to determine the livestock animals that were staying there and the time, it was confirmed that about half of the livestock animals showing signs of increased stress were acting thirsty in images taken by the monitor unit 10, and the humidity throughout the barn at that time was low. From this information, the environmental condition estimation unit 50 estimates that the environment in that cell has deteriorated due to locally low humidity.

[0045] Although the examples given are of estimating environmental conditions based on fattening characteristics and environmental conditions based on stress factors, the environmental condition estimation unit 50 can also estimate environmental conditions other than the above estimation examples as long as it is capable of estimating conditions by combining the above information in a complex manner.

[0046] Various variations are described below.

[0047] In the present invention, it is desirable to capture images of the area using a camera at all times, that is, to capture images as video, but it may also be possible to capture images intermittently (for example, morning, afternoon, and evening, every three hours, every minute, or a combination thereof). The same applies to the time intervals at which logs are acquired.

[0048] The stress level may be determined based on the stress levels obtained from multiple livestock animals, rather than just a single livestock animal. For example, it is conceivable that stressed and non-stressed livestock animals may simultaneously reside in the same cell. In such cases, it may be determined that an environmental stressor is present in the cell, or that no environmental stressor is present. Alternatively, the stress levels of multiple livestock animals may be averaged, and if the average exceeds a predetermined threshold, it may be determined that an environmental stressor is present. Furthermore, it is conceivable to weight the behavioral patterns of livestock animals. For example, if a livestock animal evacuates from a cell containing a stressor, as in Case 1, the stress level may be multiplied by "1." On the other hand, if a livestock animal remains in a cell containing a stressor, as in Case 2, the stress level may be multiplied by, for example, "0.5," i.e., weighted.

[0049] Furthermore, the present invention can be combined with existing technologies (temperature sensors, humidity sensors, etc.) to grasp the state of the environment in which livestock animals are raised. Temperature, climate, etc. may also be taken into consideration in the present invention.

[0050] The present invention can also be realized by a computer serving as the information processing device 100. Specifically, the computer serving as the information processing device 100 includes an interface, memory (RAM (Random Access Memory), ROM (Read Only Memory), etc.), and a CPU (Central Processing Unit), as shown in Fig. 12. The CPU reads a program from the memory and realizes processing modules corresponding to the monitor unit 10, position acquisition unit 20, log creation unit 30, and environmental state estimation unit 40.

[0051] Some or all of the above embodiments can be described as, but are not limited to, the following supplementary notes.

[0052] (Appendix 1) a monitoring unit for monitoring a plurality of livestock animals kept within a predetermined area; a location acquisition unit that acquires location information indicating in which of a plurality of cells the area is virtually divided each livestock animal is staying; a log creating unit that creates a log in which the monitoring result by the monitor unit, the location information acquired by the location acquiring unit, and time are associated with each other; an environmental state estimation unit that estimates an environmental state of each cell based on the log; An information processing device comprising:

[0053] (Appendix 2) the environmental state estimation unit identifies a cell where livestock animals have been densely present from the log, and estimates that cells other than the identified cell have an environmental state worse than that of the identified cell. 10. The information processing device according to claim 1.

[0054] (Appendix 3) The monitor unit monitors the stress level of the livestock animal, the environmental state estimation unit identifies a cell in which the livestock animal has been staying in a stressed state from the log, and estimates that the cell is a cell in which an environmental stress source exists. 10. The information processing device according to claim 1.

[0055] (Appendix 4) When the environmental state estimation unit detects from the log that a livestock animal has been staying in a stressed state in a cell during a first time period, the environmental state estimation unit estimates that the cell is one in which environmental stress specific to the first time period exists. 4. The information processing device according to claim 3.

[0056] (Appendix 5) and an environmental condition estimation unit that estimates the causes and conditions of the quality of the environment of each cell by comprehensively determining at least one of basic information on the livestock animals' weight gain, ease / difficulty of physical growth, correlation with the amount of food eaten, and ease / difficulty of injury and illness occurrence, meteorological information on the temperature, humidity, wind volume, and weather of the area, the log, and the monitoring results by the monitor unit. 5. The information processing device according to any one of appendices 1 to 4.

[0057] (Appendix 6) a monitoring step of monitoring a plurality of livestock animals kept within a predetermined area; a position acquisition step of acquiring position information indicating in which of a plurality of cells obtained by virtually dividing the area each livestock animal is staying; a log creation step of creating a log in which the monitoring result obtained by the monitoring step, the position information obtained by the position acquisition step, and time are associated with each other; an environmental state estimation step of estimating an environmental state of each cell based on the log; An information processing method including:

[0058] (Appendix 7) a monitoring process for monitoring a plurality of livestock animals kept within a predetermined area; a location acquisition process for acquiring location information indicating in which of a plurality of cells the area is virtually divided each livestock animal is staying; a log creation process for creating a log in which the monitoring result of the monitoring process, the location information acquired by the location acquisition process, and time are associated with each other; an environmental state estimation process for estimating an environmental state of each cell based on the log; An information processing program that causes a computer to execute the above.

[0059] The disclosures of the above-cited patent documents and other documents are incorporated herein by reference and may be used as the basis or part of the present invention, as necessary. Modifications and adjustments of the embodiments and examples are possible within the scope of the entire disclosure of the present invention (including the claims), and further based on the basic technical concepts thereof. Furthermore, various combinations and selections (including partial deletions) of the various disclosed elements (including each element of each claim, each element of each embodiment or example, each element of each drawing, etc.) are possible within the scope of the entire disclosure of the present invention. In other words, the present invention naturally embraces various modifications and alterations that would be possible by a person skilled in the art in accordance with the entire disclosure and technical concepts, including the claims. In particular, with regard to the numerical ranges set forth herein, any numerical value or subrange within that range should be construed as specifically set forth, even if not otherwise specified. Furthermore, the disclosures of the above-cited documents, when used in part or in whole in combination with the disclosures herein as part of the disclosure of the present invention, in accordance with the spirit of the present invention, are also deemed to be included in the disclosures of this application. [Explanation of symbols]

[0060] 10: Monitor section 20: Position acquisition part 30: Log creation section 40: Environmental state estimation unit 50:Environmental condition estimation section 100: Information processing device

Claims

1. a monitoring unit for monitoring a plurality of livestock animals kept within a predetermined area; a location acquisition unit that acquires location information indicating in which of a plurality of cells the area is virtually divided each livestock animal is staying; a log creating unit that creates a log in which the monitoring result by the monitor unit, the location information acquired by the location acquiring unit, and time are associated with each other; an environmental state estimation unit that estimates an environmental state of each cell based on the log; Equipped with The monitor unit monitors the stress level of the livestock animal, the environmental state estimation unit identifies a cell in which the livestock animal has been staying in a stressed state from the log, and estimates that the cell is a cell in which an environmental stress source exists. Information processing device.

2. the environmental state estimation unit identifies a cell where livestock animals have been densely present from the log, and estimates that cells other than the identified cell have an environmental state worse than that of the identified cell. The information processing device according to claim 1 .

3. When the environmental state estimation unit detects from the log that a livestock animal has been staying in a stressed state in a cell during a first time period, the environmental state estimation unit estimates that the cell is one in which environmental stress specific to the first time period exists. The information processing device according to claim 1 .

4. and an environmental condition estimation unit that estimates the causes and conditions of the quality of the environment of each cell by comprehensively determining at least one of basic information regarding the livestock animals' weight gain, the likelihood / difficulty of growth in physique, correlation with the amount of food eaten by the livestock animals, and the likelihood / difficulty of injury and illness occurrence, meteorological information regarding the temperature, humidity, wind volume, and weather of the area, the log, and the monitoring results by the monitor unit. The information processing device according to any one of claims 1 to 3.

5. a monitoring step of monitoring a plurality of livestock animals kept within a predetermined area; a position acquisition step of acquiring position information indicating in which of a plurality of cells obtained by virtually dividing the area each livestock animal is staying; a log creation step of creating a log in which the monitoring result obtained by the monitoring step, the location information obtained by the location acquisition step, and time are associated with each other; an environmental state estimation step of estimating an environmental state of each cell based on the log; Including, In the monitoring step, a stress level of the livestock animal is monitored; In the environmental state estimation step, a cell in which the livestock animal was staying in a stressed state is identified from the log, and the cell is estimated to be a cell in which an environmental stress source is present. Information processing methods.

6. a monitoring process for monitoring a plurality of livestock animals kept within a predetermined area; a location acquisition process for acquiring location information indicating in which of a plurality of cells the area is virtually divided each livestock animal is staying; a log creation process for creating a log in which the monitoring result of the monitoring process, the location information acquired by the location acquisition process, and time are associated with each other; an environmental state estimation process for estimating an environmental state of each cell based on the log; An information processing program that causes a computer to execute the following: In the monitoring process, a stress level of the livestock animal is monitored; In the environmental state estimation process, a cell in which the livestock animal was staying in a stressed state is identified from the log, and the cell is estimated to be a cell in which an environmental stress source is present. Information processing program.

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