Addition amount adjusting system, addition amount adjusting method, and program

Abstract

An object of the present disclosure is to provide a technique for suppressing variation in the amount of a silage adjusting agent to be added.SOLUTION: The addition amount adjustment system includes a measurement unit configured to measure a recovery amount of the forage crops by a harvester configured to harvest the forage crops, an adjustment unit configured to adjust a liquid feeding amount of the silage adjuster according to the recovery amount measured by the measurement unit, and a liquid feeding pump configured to feed the silage adjuster at the liquid feeding amount adjusted by the adjustment unit in order to add the silage adjuster to the forage crops discharged from a discharge chute of the harvester.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to an additive amount adjusting system, an additive amount adjusting method, and a program. [Background technology]

[0002] Silage is known, produced by fermenting forage crops such as grass and corn. Silage is widely used as livestock feed. In silage production, a method is adopted in which a silage conditioner containing formic acid is added when forage crops are harvested with a harvester to lower the pH and prevent the silage from spoiling. For example, Patent Document 1 discloses a silage harvester equipped with a silage additive spray pump. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-108570 Summary of the Invention [Problem to be solved by the invention]

[0004] At forage crop harvesting sites, a method has been adopted in which a harvester operator manually adjusts the amount of silage conditioner added while harvesting the forage crops. However, this method has the problem of causing variations in the amount of silage conditioner added relative to the yield of the forage crops.

[0005] The technology of the present disclosure aims to provide a technology that suppresses variation in the amount of a silage conditioner added. [Means for solving the problem]

[0006] (Aspect 1) a measuring unit that measures the amount of forage crops recovered by a harvester that harvests the forage crops; an adjusting unit that adjusts the amount of the silage conditioner to be sent in accordance with the amount of the recovered silage measured by the measuring unit; a liquid feed pump that feeds the silage conditioning agent at the liquid feed rate adjusted by the adjusting unit in order to add the silage conditioning agent to the forage crops discharged from a discharge chute of the harvester; An additive amount adjustment system. (Aspect 2) The addition amount adjusting system according to aspect 1, the measuring unit is a vibration sensor installed on an outer wall of the discharge chute, The adjustment unit may calculate the recovery amount of the forage crops flowing through the discharge chute based on the amount of vibration measured by the vibration sensor. (Aspect 3) The addition amount adjusting system according to aspect 2, The adjusting unit may adjust the amount of the silage adjusting agent to be fed in accordance with the calculated amount of vibration. (Aspect 4) The addition amount adjusting system according to aspect 2 or 3, The adjustment unit The vibration sensor stores data of the background vibration of the harvester measured over a predetermined period of time in the past. Accumulation, The amount of vibration generated in the discharge chute due to the feed crops flowing through the discharge chute may be calculated by dividing the amount of vibration measured by the vibration sensor by the average value of the background vibration over the specified period in the past. (Aspect 5) The addition amount adjusting system according to any one of aspects 2 to 4, The adjustment unit may store the amount of vibration measured by the vibration sensor after the drive engine of the harvester is started and before the pickup device that collects the feed crops is lowered, and after the amount of vibration measured by the vibration sensor becomes greater than or equal to a threshold value as data on the background vibration. (Aspect 6) The addition amount adjusting system according to any one of aspects 2 to 5, The adjustment unit Calculating the recovery amount of the forage crop based on the calculated vibration amount; The amount of the silage conditioner to be fed may be adjusted based on the relationship between the amount of the recovered feed crop and the amount of the silage conditioner to be added.

[0007] The present disclosure can also be understood from the aspect of a method or program for adjusting the amount of addition. (Aspect 7) Measuring the amount of forage crop collected by a harvester that harvests the forage crop; adjusting the amount of silage conditioner to be sent in accordance with the measured amount of recovered silage; delivering the silage conditioning agent at the adjusted delivery rate to add the silage conditioning agent to the forage crops discharged from a discharge chute of the harvester; The method for adjusting the amount of addition may include the steps of: (Aspect 8) On the computer, having a measuring unit measure the amount of forage crop collected by a harvester that harvests the forage crop; adjusting the amount of the silage conditioner to be fed in accordance with the amount of the recovered silage measured by the measuring unit; feeding the silage conditioning agent to a liquid feed pump at the adjusted liquid feed rate to add the silage conditioning agent to the forage crops discharged from a discharge chute of the harvester; The program may be a program for executing the above.

[0008] The contents described in the means for solving the problems can be combined as much as possible within the scope of the problems and technical ideas of this disclosure. [Effects of the Invention]

[0009] According to the present disclosure, it is possible to suppress variation in the amount of silage conditioner added. [Brief explanation of the drawings]

[0010] [Figure 1]FIG. 1 is a diagram showing a harvester on which an addition amount adjusting system according to an embodiment is mounted. [Figure 2] FIG. 2 is a flowchart illustrating the addition amount adjusting method by the addition amount adjusting system according to the embodiment. [Figure 3] FIG. 3 is a graph showing the relationship between the amount of adjusting agent added and the amount of vibration measured by the vibration sensor of the adding amount adjusting system according to the embodiment. [Figure 4] FIG. 4 is a graph illustrating the background vibration of the harvester and the amount of vibration caused by grass flowing through the discharge chute. [Figure 5] FIG. 5 is a graph showing the amount of vibration after background vibration has been removed. [Figure 6] FIG. 6 is a graph showing the moving average value of the vibration amount. [Figure 7] FIG. 7 is a graph showing the calculated vibration amount and the amount of adjusting agent delivered. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. Note that each configuration and combination thereof in each embodiment is an example, and addition, omission, substitution, and other modifications of the configuration are possible as appropriate within the scope of the gist of the present invention. The present disclosure is not limited by the embodiments, but is limited only by the claims.

[0012] <Embodiment> 1 is a diagram showing a state in which a harvester (forage harvester) 100 equipped with an addition amount adjustment system according to an embodiment is harvesting cut-down grass 201 in a farm field. In this embodiment, an example of a system in which the harvester 100 adds a silage conditioner when harvesting grass will be described, but the feed crop is not limited to grass and may be corn or the like.

[0013] The harvester 100 is a self-propelled harvesting machine that has a drive engine such as a diesel engine inside a vehicle body 101 and is operated by an operator 200. The harvester 100 travels by itself and collects grass 201 from a harvesting mouth at the tip of a pickup device 102 attached to the front of the vehicle body 101. The pickup device 102 is a mechanism that moves the harvesting mouth up and down, and is capable of reciprocating between an initial position and a grass collection position. The grass 201 has been cut in advance, and furrows of the grass 201 have been formed in the field. The harvester 100 travels by itself over the furrows to collect the grass 201, cuts the collected grass 201 into small pieces, and then discharges the grass 201 into the loading platform of a dump truck traveling alongside. Specifically, the harvester 100 uses a blower to blow the grass 201 into a discharge chute 103 attached to the upper side of the vehicle body 101 , and discharges the grass 201 from a discharge outlet 103 A provided at the tip of the discharge chute 103 .

[0014] The addition amount adjusting system according to this embodiment adjusts the amount of silage conditioner (hereinafter referred to as "conditioner") to be added to the grass 201 discharged from the discharge outlet 103A of the discharge chute 103. The conditioner 105 contains formic acid and water and is acidic. Adding the conditioner 105 to the forage crop lowers the pH of the forage crop, thereby inhibiting spoilage of the silage. A tank 104 for the conditioner is attached to the rear of the body 101 of the harvester 100, and the tank 104 is filled with the conditioner 105. The addition amount adjusting system adjusts the amount of conditioner 105 to be added depending on the amount of grass 201 discharged from the discharge outlet 103A.

[0015] The addition amount adjusting system includes a control unit 1 (an example of the "adjusting unit" of the present disclosure), a liquid feed pump 2 that sucks up and sends out the adjusting agent 105 from the tank 104, a vibration sensor 3 (an example of the "recovery amount measuring unit" of the present disclosure) attached to the discharge chute 103, pipes 4 and 5 that allow the adjusting agent 105 to flow from the tank 104 to the discharge port 103A, and a flow meter 6 installed in the middle of the pipe 5. The control unit 1 may be implemented by, for example, a PLC (Programmable Logic Controller). For convenience of illustration, the control unit 1 is shown above the vehicle body 101, but the control unit 1 may be mounted at any position on the vehicle body 101. The control unit 1 is electrically connected to the drive unit of the liquid feed pump 2, the vibration sensor 3, and the flow meter 6, and controls these devices. The drive power for the control unit 1, the liquid feed pump 2, the vibration sensor 3, and the flow meter 6 may be supplied from electric power generated by the operation of the drive engine of the harvester 100, or from a battery mounted on the vehicle body 101 for driving the control unit 1 and the liquid feed pump 2.

[0016] One end of a pipe 4 is connected to the inlet side of the liquid pump 2, and the other end of the pipe 4 is connected to a tank One end of a pipe 5 is connected to the outlet side of the liquid feed pump 2, and the pipe 5 is provided extending over the discharge chute 103, with a tip opening 5A (the other end) of the pipe 5 being installed on the discharge outlet 103A. A flow meter 6 is installed on the discharge chute 103 to measure the flow rate of the adjusting agent 105 sent from the liquid feed pump 2 to the pipe 5.

[0017] Figure 2 is a flowchart relating to the method for adjusting the amount of addition by the addition amount adjustment system according to this embodiment. In the method for adjusting the amount of addition in this embodiment, first the amount of grass collected by the harvester 100 is measured (step S101). In this embodiment, the amount of grass 201 flowing through the discharge chute 103 is measured as the amount of grass 201 collected. The vibration sensor 3 measures the amount of vibration of the discharge chute 103. The amount of vibration of the discharge chute 103 is correlated with the amount of grass flowing therethrough, and the greater the amount of grass flowing, the greater the amount of vibration of the discharge chute 103. The control unit 1 calculates the amount of grass 201 collected based on this amount of vibration.

[0018] In step S102, which follows step S101, the amount of the regulator 105 fed is adjusted according to the amount of grass 201 collected, which is based on the amount of vibration measured by the vibration sensor 3. The control unit 1 adjusts the output of the liquid feed pump 2, thereby adjusting the amount of the regulator 105 fed.

[0019] In step S103, which follows step S102, the regulator 105 is fed at a feed rate adjusted by the control unit 1 in order to add the regulator 105 to the grass 201 discharged from the discharge chute 103. This feeding is performed by operating the liquid feed pump 2. The regulator 105 sucked up by the liquid feed pump 2 is discharged towards the grass 201 from the tip opening 5A via pipes 4 and 5. In this way, the regulator is added to the grass 201. The addition amount adjustment system can prevent variation in the amount of regulator added.

[0020] FIG. 3 is a graph showing the relationship between the amount of regulator 105 added and the amount of vibration measured by the vibration sensor 3. The horizontal axis of the graph shown in FIG. 3 represents elapsed time (seconds), the left vertical axis represents the amount of vibration (V), and the right vertical axis represents the flow rate (L / min) of the regulator 105. The amount of vibration is a measurement value output by the vibration sensor 3. In this embodiment, a sensor that outputs a measurement value as a voltage value is used for the vibration sensor 3. For example, the vibration sensor 3 is a vibration sensor D7F manufactured by Omron Corporation. The flow rate of the regulator 105 is the flow rate of the regulator 105 measured by the flow meter 6 and can be adjusted by setting the output value of the liquid feed pump 2. The control unit 1 acquires the measurement values ​​from the vibration sensor 3 and the flow meter 6 in real time and adjusts the amount of liquid fed by the liquid feed pump 2 to adjust the amount of regulator 105 added. Note that the flow meter 6 is a non-contact flow meter (clamp-on type flow sensor) manufactured by Keyence Corporation.

[0021] In the example shown in the graph of Figure 3, the drive engine of the harvester 100 is operating before measurement begins, and the pickup device 102 is lowered to the grass collection position approximately 15 seconds after measurement begins. This increases the amount of vibration, and approximately 15 seconds after measurement begins, collection of grass 201 begins and the liquid feed pump 2 begins to feed the conditioner. Furthermore, 81 seconds after measurement begins, the pickup device 102 is raised, and collection of grass 201 is completed. At the same time as grass collection is completed, the liquid feed pump 2 stops feeding the conditioner.

[0022] Line L1 in the graph of Figure 3 shows the amount of vibration output by the vibration sensor 3, and line L2 shows the amount of regulator liquid fed that is adjusted by the control unit 1. The addition amount adjustment system according to this embodiment adjusts the amount of regulator liquid fed by the liquid feed pump 2 according to the amount of vibration. On the other hand, line L3 shows the actual flow rate in a comparative example in which the operator 200 manually adjusted the amount of regulator liquid fed by the liquid feed pump 2 without using the addition amount adjustment system. In the comparative example, the liquid feed amount is set at a preset value (e.g., 6.5 L / min) regardless of the amount of vibration, i.e., the amount of grass collected. For this reason, in the comparative example, the amount of regulator liquid added is not adjusted to the actual amount of grass, resulting in variation in the amount of regulator liquid added.

[0023] In a comparative example that did not use an additive amount adjustment system, an operator visually checked the amount of grass in the field and the moisture content of the grass to set the amount of conditioner to be added. For example, the operator visually checked the amount of grass before harvesting the grass with a harvester and then set the amount of conditioner to be added. However, the amount of grass cut down in the field is not constant, and the amount of grass distributed in the furrows varies. This results in variation in the amount of grass collected, and if a constant amount of conditioner is continuously added, the pH of the grass at harvest also varies. If silage is produced from the grass in this state, the quality of the silage will deteriorate. On the other hand, to prevent deterioration in silage quality, it is possible to measure the actual grass pH in the bunker silo where the grass is fermented and adjust the setting value for the amount to be added the next time the grass is collected. However, this does not prevent deterioration in the quality of silage produced from grass already packed into the bunker silo. Furthermore, since the amount of grass varies depending on the location where the grass is collected, this method makes it impossible to add an appropriate amount of regulator for the amount of grass.

[0024] Furthermore, in the comparative example, in which the amount of conditioner added is adjusted based on the amount of grass visually confirmed by the operator, the amount of conditioner added varies depending on the operator's level of skill, which also reduces the quality of the silage. Furthermore, since there is naturally variation in the height of grass ridges, while the amount of conditioner added within one unit of grass collection work is constant, there is variation in the actual amount of grass collected, resulting in variation in the amount of conditioner added. To produce silage of consistent quality from grass to which conditioner has been added using this comparative example's method, it is necessary to measure the pH of the grass in the bunker silo and add additional conditioner if the pH is higher than the desired value, which increases the production burden.

[0025] In contrast, the addition amount adjusting system according to this embodiment measures the collected amount of grass 201 in real time and adjusts the amount of regulator 105 added according to this collected amount. The addition amount adjusting system according to this embodiment can add regulator so that the pH of the grass 201 reaches a desired value, thereby preventing deterioration in the quality of the silage.

[0026] Next, a method for calculating the amount of grass flowing through the discharge chute 103 from the amount of vibration measured by the vibration sensor will be described. Because the vibration sensor 3 is fixed to the discharge chute 103, it also detects vibrations from the drive engine of the vehicle body 101, vibrations from the blower, and vibrations caused by the pickup device 102 coming into contact with the ground. The vibration sensor 3 measures vibrations caused by the grass 201 flowing through the discharge chute 103, and background vibrations are vibrations caused by the drive engine, vibrations from the blower, vibrations transmitted from the pickup device 102, and other factors. The control unit 1 calculates the amount of vibration caused by the grass 201 flowing through the discharge chute 103 by removing the amount of background vibration from the amount of vibration (V) output by the vibration sensor 3, and thereby calculates the amount of grass 201 collected.

[0027] FIG. 4 is a graph illustrating background vibration and the amount of vibration caused by grass 201 flowing through the discharge chute 103. The horizontal axis of the graph shown in FIG. 4 represents elapsed time (seconds), and the vertical axis represents the amount of vibration (V). FIG. 4 shows the same measurement data as the example shown in FIG. 3. Line L1 on the graph in FIG. 4, like FIG. 3, represents the amount of vibration output by the vibration sensor 3.

[0028] As shown by line L1, vibration is measured at the start of measurement, and this vibration is generated by the drive engine and blower of the harvester 100, which are in an idling state. Approximately 10 seconds after the start of measurement, the vibration amount rises to around 2.0V. This is an increase in the vibration amount caused by an increase in the output of the drive engine and blower. In this example, the control unit 1 stores, for example, a vibration amount of 1.6V or more as dark vibration data. This vibration amount of 1.6V is a threshold value that the control unit 1 uses to determine whether or not to store dark vibration data, and this threshold value is shown by line L21 in the graph. This threshold value is determined by the harvester 100. Although the vibration level can be set individually and arbitrarily, it is preferable to set it to a value between the vibration level when the drive engine and blower are idling and the vibration level when the drive engine and blower increase in output just before they start to collect grass (after they start to move independently).

[0029] Furthermore, as shown in the graph in Figure 4, approximately 15 seconds after the start of measurement, the pickup device 102 descends to the grass collection position, and the vibration magnitude increases due to vibrations transmitted from the pickup device 102. Note that line L11 indicates the time when the pickup device 102 descends, and line L12 indicates the time when the pickup device 102 ascends. In the graph in Figure 4, the vibration component below line L22 is the component of the background vibration of the harvester 100, and the component above line L22 is the vibration component related to the grass collection amount. Line L22 is a line connecting the intersection of lines L11 and L12, which indicate the time when the pickup device 102 ascends and descends, with line L1, which indicates the measurement data of the vibration magnitude. The control unit 1 is connected to the control device of the harvester 100, and the control device of the harvester 100 outputs a signal (voltage value of 12 V) that indicates whether the pickup device 102 is located at the initial position or the collection position by turning it on or off. Based on this signal, the control unit 1 can determine the position of the pickup device 102. The control unit 1 can calculate the amount of vibration caused by the grass 201 flowing through the discharge chute 103 by subtracting the amount of background vibration from the amount of vibration after the pickup device 102 has descended to the collection position.

[0030] Next, a method for calculating the amount of collected grass by the control unit 1 will be described in more detail. In this embodiment, the amount of vibration equal to or greater than an arbitrarily set threshold after the drive engine of the harvester 100 has started and before the pickup device 102 has descended is treated as background vibration of the harvester 100. The control unit 1 accumulates background vibration data for the past 5 to 10 seconds (an example of a "predetermined period") and calculates the average value of background vibration over the past predetermined period. The control unit 1 then calculates the amount of vibration after background vibration has been removed by performing division using the following equation (1): Vibration amount after background vibration removal = actually measured vibration amount - average background vibration amount (1) The control unit 1 may calculate the amount of vibration after background vibration removal as the amount of vibration caused by the grass 201 flowing through the discharge chute 103.

[0031] The control unit 1 may also calculate the amount of vibration caused by the grass 201 flowing through the discharge chute 103 by taking a moving average of the amount of vibration after background vibration has been removed. Specifically, for example, the amount of vibration after background vibration has been removed, obtained every 100 ms using the following formula (2), is processed as a moving average over one second. Moving average value of vibration amount = ΣVibration amount after removing 10 times of background vibration / 10 (2) Note that "after 10 times of background vibration removal" refers to one vibration amount (for 1 second) obtained every 100 ms after background vibration removal.

[0032] 5 and 6 are graphs showing the vibration amount after background vibration has been removed. The horizontal axis of the graphs shown in FIGS. 5 and 6 represents elapsed time (seconds), and the vertical axis represents vibration amount (V). FIG. 5 is a graph showing the vibration amount after background vibration has been removed, obtained by the above formula (1), and FIG. 6 is a graph showing the moving average value of the vibration amount obtained by the above formula (2). By calculating the moving average of the vibration amount, the control unit 1 can smooth out irregular vibration amounts and simplify the adjustment and control of the amount of regulator added.

[0033] Next, a method for calculating the amount of regulator to be added from the amount of vibration will be described. In this embodiment, the moving average value obtained by the above formula (2) is treated as the amount of vibration caused by the grass 201 flowing through the discharge chute 103, but the amount of vibration obtained by the above formula (1) may also be treated as the amount of vibration caused by the grass 201 flowing through the discharge chute 103. Note that, hereinafter, the amount of vibration caused by the grass 201 flowing through the discharge chute 103 will be referred to as the "calculated amount of vibration."

[0034] There is a correlation between the calculated vibration amount and the collected amount of grass 201. This correlation is determined in advance for each harvester 100 equipped with the regulator addition amount adjustment system. The control unit 1 calculates the collected amount of grass 201 based on the calculated vibration amount. For example, the harvester 100 collects a predetermined amount of grass, and calculates the correlation between the actual collected amount and the calculated vibration amount. Then, a conversion coefficient between the calculated vibration amount and grass weight is calculated, and the relationship between the calculated vibration amount (V) and the amount of regulator added (L / min) is determined. Specifically, the amount of liquid fed (L / min) is adjusted in increments of 0.1V of vibration amount, for example, to set the amount of regulator fed to 8L / min per 1V of vibration amount. The control unit 1 is equipped with an input / output device such as a touch panel that allows the operator 200 to make these adjustments, and the operator 200 can set the amount of liquid fed by operating the touch panel. The control unit 1 can adjust the amount of regulator fed according to the calculated vibration amount.

[0035] Fig. 7 is a graph showing the calculated vibration amount and the amount of adjuster liquid delivered. The horizontal axis of the graph shown in Fig. 7 represents elapsed time (seconds), the left vertical axis represents vibration amount (V), and the right vertical axis represents the amount of adjuster liquid delivered (L / min). Line L4 of the graph shown in Fig. 7 represents the calculated vibration amount, and line L5 represents the amount of adjuster liquid delivered (L / min). Line L6 represents the amount of liquid delivered in a comparative example in which the operator 200 manually adjusted the amount of adjuster liquid delivered by the liquid delivery pump without using the addition amount adjustment system.

[0036] In the addition amount adjusting system according to this embodiment, the output switching of the liquid delivery amount is set every second for which a moving average of the vibration amount is calculated. This allows the liquid delivery amount to be adjusted according to the moving average. In the example shown in FIG. 7, a moving average is calculated for one second, and the amount of the adjuster delivered is adjusted based on this moving average. Note that a minimum amount of adjuster delivered, which is arbitrarily set, is delivered for 0 to 5 seconds after the start of delivery of the adjuster. Furthermore, since the amount of delivery is adjusted based on the moving average, the adjuster may be delivered at an arbitrarily set amount of delivery for the first 0 to 1 second, when a moving average cannot be calculated.

[0037] In this example, a moving average over one second is taken, so the amount of the regulator solution is adjusted every second. As shown in the graph in FIG. 7, the variation in the vibration amount indicates that the amount of collected grass 201 also varies. The additive amount adjustment system according to this embodiment can adjust the amount of additive added depending on the variation in the yield of the grass 201, thereby allowing an appropriate amount of additive to be added to the grass 201. Furthermore, the additive amount adjustment system according to this embodiment automatically adjusts the amount of additive added, eliminating the need to check the pH of the grass after collection, thereby reducing the burden of silage production. Furthermore, the additive amount adjustment system according to this embodiment automatically adjusts the amount of additive added, thereby reducing variation in the amount of additive added due to the level of skill of the operator 200. Furthermore, the additive amount adjustment system according to this embodiment can adjust the amount of additive added depending on the amount of grass collected in real time during grass collection, thereby reducing variation in the amount of additive added within one unit of grass collection work.

[0038] <Program> Next, a program for causing the control unit 1 to execute the method for adjusting the amount of addition will be described. The control unit 1 executes a predetermined program using its internal calculation unit, memory, etc., thereby realizing the method for adjusting the amount of addition described above. The program may be stored in a recording medium in the control unit 1.

[0039] <Other> The embodiments of the present disclosure have been described above, but each aspect disclosed in this specification can be combined with other features disclosed in this specification. Also, in the above embodiment, the amount of grass collected is measured from the amount of vibration, but the technology of the present disclosure is not limited to this. For example, a sensor that measures the amount of grass passing through can be installed upstream of the discharge chute 103 of the harvester 100. The harvester 100 may be provided with a sensor to measure the amount of grass collected. The sensor may be installed in advance in the harvester 100. [Explanation of symbols]

[0040] 1: Control unit 2: Liquid transfer pump 3: Vibration sensor 4: Pipe 5: Pipe 5A: Tip opening 6:Flow meter 100: Harvester 101: Body 102: Pickup device 103: Discharge chute 103A: Outlet 104: Tank 105: Silage conditioner 200: Operator 201: Grass

Claims

1. a measuring unit that measures the amount of forage crops recovered by a harvester that harvests the forage crops; an adjusting unit that adjusts the amount of the silage conditioner to be sent in accordance with the amount of the recovered silage measured by the measuring unit; a liquid feed pump that feeds the silage conditioning agent at the liquid feed rate adjusted by the adjusting unit in order to add the silage conditioning agent to the forage crops discharged from a discharge chute of the harvester; An additive amount adjustment system.

2. the measuring unit is a vibration sensor installed on an outer wall of the discharge chute, the adjustment unit calculates the recovery amount of the forage crops flowing through the discharge chute based on the amount of vibration measured by the vibration sensor. The addition amount adjusting system according to claim 1 .

3. The adjusting unit adjusts the amount of the silage adjusting agent to be fed in accordance with the calculated vibration amount. The addition amount adjusting system according to claim 2 .

4. The adjustment unit accumulating data of background vibration of the harvester measured by the vibration sensor for a predetermined period of time in the past; the amount of vibration generated in the discharge chute due to the feed crops flowing through the discharge chute is calculated by dividing the amount of vibration measured by the vibration sensor by the average value of the background vibration during the predetermined period in the past; The addition amount adjusting system according to claim 2 .

5. the adjustment unit accumulates, as the background vibration data, a vibration amount measured by the vibration sensor after the drive engine of the harvester has started and before the pickup device for recovering the feed crops has descended, the vibration amount being equal to or greater than a threshold value. The addition amount adjusting system according to claim 4.

6. The adjustment unit Calculating the recovery amount of the forage crop based on the calculated vibration amount; The amount of the silage regulator to be fed is adjusted based on the relationship between the amount of the recovered feed crop and the amount of the silage regulator to be added. The addition amount adjusting system according to claim 4 or 5.

7. Measuring the amount of forage crop collected by a harvester that harvests the forage crop; adjusting the amount of silage conditioner to be sent in accordance with the measured amount of recovered silage; delivering the silage conditioning agent at the adjusted delivery rate to add the silage conditioning agent to the forage crops discharged from a discharge chute of the harvester; A method for adjusting the amount of addition, including:

8. On the computer, having a measuring unit measure the amount of forage crop collected by a harvester that harvests the forage crop; adjusting the amount of the silage conditioner to be fed in accordance with the amount of the recovered silage measured by the measuring unit; The silage conditioner is applied to the forage crop discharged from the discharge chute of the harvester. In order to add the silage conditioner, the silage conditioner is fed to a feed pump at the adjusted feed rate; A program to execute.

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