JP4965600B2 - Sprinkling amount control device and controlling method for control machine - Google Patents

Description

  The present invention relates to a spray amount control device and a spray amount control method for a control machine.

  In a control machine that sprays chemicals on crops etc. in a field while self-propelled, the spraying amount per unit area is limited for the purpose of suppressing drift of chemicals scattered around the area and minimizing the amount of chemical spraying. There is known a device equipped with a speed-linked spray amount control device that controls the spray amount in accordance with the working speed of the control machine (the vehicle speed in consideration of the slip ratio) so that the set target value is obtained. Specifically, such a spray amount control device is provided in a riding type boom sprayer or the like.

  In the following Patent Document 1, sensors that detect the vehicle speed, spraying flow rate, spraying pressure, boom length or number of operating nozzles, which are spraying conditions, are provided in the control machine and sprayed from the chemical tank based on the detection signals from each sensor. A control device that controls the flow rate of the chemical solution supplied to the nozzle is described, which enables spraying according to the target spray amount per unit area even if either the spray width or the moving speed changes.

JP 2006-230337 A

  In a conventional spraying amount control device, spraying amount control is performed so that a target value (target spraying amount per unit area) input in advance to the control device is obtained. In addition, since this target value is set mainly by the control device to achieve optimum automatic spraying, the operator always takes care that the traveling speed of the spray amount control device falls within the controllable range. It was necessary to carry out the spraying work while attaching. With regard to the control of the spraying amount of the drug, the range of the amount that does not cause phytotoxicity from the minimum amount at which effective drug efficacy is obtained is within the allowable range, and it is sufficient that the control is performed within the allowable range. However, since the control is performed only at one point determined by the control device, there is a problem that the operator has many operational restrictions.

  In addition, some conventional technologies allow the operator to check if the spraying pressure or vehicle speed is out of the appropriate range by an error display or alarm buzzer. However, this indicates that the vehicle speed or spraying pressure is out of the proper range to some extent. Since it can be grasped only after the work is performed, there is a problem that the entire work range cannot be worked under appropriate spraying conditions.

  Furthermore, in the prior art, the setting of the spraying conditions for obtaining the target spraying amount per unit area is determined at one point on the control device side, and the operator cannot adjust the spraying conditions. For example, the prior art assumes that the spray nozzle is not changed, but in practice it is changed to various drift reducing nozzles, and the appropriate pressure range of the nozzle is indicated for each type of drift reducing nozzle. Therefore, in this case, pressure adjustment corresponding to the nozzle is necessary. Also, the vehicle speed sensor calculates the work speed by multiplying the detected value of axle rotation by a certain slip ratio, but in practice the slip ratio may vary greatly depending on the field conditions. Therefore, there is a need for a spraying condition that can be adjusted based on the operator's experience.

  This invention makes it an example of a subject to cope with such a problem. In other words, it is possible to easily check the appropriate range of spraying conditions before on-site work, and to make it easy to set and input, especially when setting the target spraying amount per unit area. If the control machine is run with the operator, the operator can grasp whether or not the spraying amount can be controlled under the proper spraying conditions, and the vehicle speed and spraying pressure are within the appropriate range from the beginning of the spraying operation, so that the entire work range is properly controlled. It is an object of the present invention to be able to work under spraying conditions, to allow the operator to easily adjust the spraying conditions within the range of appropriate spraying conditions in response to changes in the nozzle type and the like.

  In order to achieve such an object, a spray amount control device and a spray amount control method for a control machine according to the present invention include at least the configurations according to the following independent claims.

[Claim 1] A spray amount control device for a control machine that sprays a medicine while self-propelled,
Control means for controlling the spray amount so that the detected spray condition becomes the target spray condition set and inputted, and the control means displays an adjustable range of the target spray condition and within the adjustable range. And a display input means for enabling the setting input of the target, a plurality of the target spraying conditions can be set and input one by one, and the target can be set and input later based on the target spraying conditions previously set and input A spray amount control device for a control machine, wherein an adjustable range of spray conditions is determined.

[Claim 8] A spray amount control method of a control machine for spraying a drug while running on its own,
As a preparatory step for controlling the spraying amount so that the detected spraying condition becomes the set target input condition, the adjustable range of the target spraying condition is displayed and the setting input within the adjustable range is performed. A display input step that enables the target spraying condition to be set and input one by one, and the target spraying condition to be set and input later based on the previously set target spraying condition. A method for controlling a spray amount of a control machine, wherein an adjustable range is determined.

It is explanatory drawing which showed the structure of the spraying amount control apparatus of the control machine which concerns on one Embodiment of this invention. It is explanatory drawing which showed the more specific structural example in the spraying amount control apparatus of the control machine which concerns on one Embodiment of this invention. It is explanatory drawing which showed the display input screen which performs selection input of the nozzle which is one of spraying conditions. It is explanatory drawing which showed the 1st setting input screen after nozzle selection was performed. It is explanatory drawing which showed the 2nd setting input screen after nozzle selection was performed and the 1st reference | standard target spraying condition was set and input. It is explanatory drawing which showed the 3rd setting input screen after nozzle selection was performed and the 1st and 2nd reference | standard target spraying conditions were set and input. It shows an example of a menu selection screen preceding the setting input screen.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory diagram showing the configuration of a spray rate control device for a control machine according to an embodiment of the present invention. The spraying amount control device of the control machine according to the embodiment of the present invention is equipped with a control machine that sprays the medicine while self-propelled, and sets the spraying quantity so that the detected spraying condition becomes the set target spraying condition. Control means 10 for controlling is provided. The control means 10 receives a detection signal from a spray condition detection sensor 20 (vehicle speed sensor, spray flow sensor, spray pressure sensor, boom length measurement sensor, operating nozzle number detection sensor, etc.) provided in the control machine. A control signal for controlling the spray amount is output so that the detection signal related to the spray condition becomes the target spray condition set and inputted.

  The target spraying conditions described above are set and input by an input signal from a display input device (liquid crystal display input device) 30, and the control means 10 includes a display input means 11 for controlling the display input device 30. An example of the display input device 30 will be described with reference to the drawings. The display input device 30 includes a liquid crystal display screen 31 and various input buttons 32 (power button 32A, menu button 32B, determination button 32C, switching buttons 32D, 32E, 32F, and 32G). Etc.

  Then, the control means 10 displays the adjustable range of the target spraying condition to be set and input by the function of the display input means 11 to enable the setting input of the target spraying condition within this adjustable range. A plurality of target spraying conditions can be set and input one by one, and an adjustable range of the target spraying conditions that can be set and input later is determined based on the target spraying conditions that have been previously set and input. The target spraying conditions here are a part or all of the spraying amount per unit area (L / 10a), the vehicle speed (km / h), spraying flow rate (L / min), spraying pressure (MPa), etc. Is included.

  The spraying amount control method of the control machine executed by the control means 10 is performed as a preparation step for executing the spraying amount control so that the detected spraying condition becomes the target spraying condition set and inputted. It has a display input step for displaying an adjustable range of conditions and enabling setting input within the adjustable range. In this display input step, a plurality of target spraying conditions can be set and input one by one, and an adjustable range of target spraying conditions that can be set and input later is determined based on the target spraying conditions that have been previously set and input. .

  According to the spraying amount control device and the spraying amount control method of the control machine according to such an embodiment, the adjustable range of the target spraying condition is displayed, setting input within the adjustable range is enabled, and a plurality of targets are displayed. The spraying condition can be set and input one by one, and the adjustable range of the target spraying condition that can be set and input later is determined based on the target spraying condition that was previously set and input. The appropriate range of spraying conditions can be easily confirmed, especially when the target spraying amount per unit area is set, the adjustable range of work speed is determined and displayed based on that, so the operator can It is possible to carry out the spraying work by checking how fast the control machine should be run and how much spraying pressure should be operated.

  Then, by determining the adjustable range described above based on the appropriate spraying conditions, other target spraying conditions (spraying pressure and The operator can grasp how much the spraying amount can be controlled under appropriate spraying conditions by setting the spraying flow rate or the like. The proper spraying conditions here include conditions of spraying pressure and spraying flow rate that allow spraying without drifting to various nozzles.

  In addition, since the operator can set and input the spraying condition with his / her hand, it is possible to easily set an appropriate spraying condition corresponding to the nozzle even when the type of the nozzle is changed.

  Since the worker recognizes the spraying conditions before the spraying work, the vehicle speed and spraying pressure can be within the appropriate range from the beginning of the spraying work, and the entire work range can be appropriately operated under the spraying conditions.

  Further, by providing the target spraying condition storage unit 12 for storing the target spraying condition set and input by the control unit 10, the display input unit 11 can display the existing value stored in the target spraying condition storage unit 12. This makes it possible to simplify the condition setting for the current work using the spraying conditions set and input during the previous work.

  FIG. 2 is an explanatory view showing a more specific configuration example of the spraying amount control device of the control machine according to the embodiment of the present invention. Here, an example is shown in which the vehicle speed, the spray flow rate, and the spray pressure are detected as the spray conditions, and the electric pressure control valve is controlled based on these detected values.

  The control machine includes a traveling body (not shown) (including a self-propelled traveling body, a tractor, and the like), a tank 40 for storing sprayed medicine, a pump 41 for pumping the medicine, and an electric pressure regulating valve 43 for adjusting a supply flow rate. , A spray pipe (supply hose) 51 to which a plurality of spray nozzles 50 arranged at predetermined intervals are connected, a boom 42 (42A, 42B) provided with the same, and the like are provided from the tank 40 through the pump 41. In addition, piping paths 53 (53A to 53D) that are branched by the flow divider 52 and reach the plurality of spray pipes 51 are formed.

  The spray flow rate sensor 21 and the spray pressure sensor 22 are provided in the piping path 53 (53B), the vehicle speed sensor 23 is provided on the axle of the traveling machine body (not shown), and the detection signal from each sensor is the control means described above. 10, the control means 10 controls the rotation of the adjustment motor 43 </ b> A of the electric pressure regulating valve 43. Further, the control means 10 controls the display input function of the display input device 30 as described above.

  A specific example of the display input function (setting input guidance function) in the system configuration of such a spread rate control device and the display input process in the spread rate control method will be shown below.

  FIG. 3 shows a display input screen for selecting and inputting a nozzle that is one of the spraying conditions. The control machine can switch or replace the spray nozzle 50 with another type. When the spray nozzle 50 is switched or replaced, it is necessary to switch nozzle information used when the control means 10 calculates the spray amount. In the illustrated example, when “guidance” is selected on the menu screen of the display input device 30 (FIG. 5A) and the determination button 32C or the switching button 32E is pressed, a nozzle selection input screen as shown in FIG. Displayed (When the switch button 32D is pressed on this input screen, the original menu screen can be restored).

  By operating the switching buttons 32F and 32G on this input screen, the selected input items can be changed as shown in FIGS. Here, FIG. 5B shows a state in which the nozzle 1 is selected, FIG. 9C shows a state in which the nozzle 2 has been selected, FIG. 9D shows a state in which the nozzle 3 has been selected, and FIG. (F) shows the state in which the nozzle 5 has been selected, and (g) in the same figure shows the state in which the nozzle 6 has been selected. Shows selection items).

  The nozzles 1 to 6 have different ejection characteristics, and the counter spraying amount (spraying amount per unit area of 10a) suitable for each nozzle is also displayed. Changing nozzle information in the control means 10 according to the type of spray nozzle 50 of the control machine by selecting one of the nozzles 1 to 6 corresponding to the spray nozzle 50 switched or exchanged in the control machine Can do. When any one of the nozzles 1 to 6 is selected and the determination button 32C or the switching button 32E is pressed, the screen is switched to the first setting input screen corresponding to the selected nozzle (any one of the nozzles 1 to 6) (in this input screen) Press the switch button 32D to return to the original screen). After switching, the calculation process of the control means 10 is performed based on the nozzle information of the selected nozzle.

  FIG. 4 is an explanatory diagram showing a first setting input screen after nozzle selection has been performed. On the first setting input screen, one of a plurality of target spraying conditions is selected as a first reference (“kijun 1”), and setting input of the first reference (“kijun 1”) is made possible. In this example, as the target spraying condition, one of the counter sprinkling spray amount (spraying amount per unit area of 10a; L / 10a), the vehicle speed (km / h), and the spraying pressure (MPa) is set to the first reference (“ Kijun 1 ") can be selected. The figure (a) shows the state where the counter sprinkling amount (L / 10a) is selected, the figure (b) shows the state where vehicle speed (km / h) is selected, and the figure (c) shows the application pressure (MPa). (In the figure, ■ indicates the selected item, and □ indicates the non-selected item). The selection item is switched by switching buttons 32F and 32G.

  As the first standard ("Kijun 1"), select one of counter-spattering amount (spraying amount per unit area of 10a; L / 10a), vehicle speed (km / h), spraying pressure (MPa) When the determination button 32C or the switching button 32E is pressed, a screen for setting and inputting each target spraying condition (FIGS. (A1), (b1), and (c1)) is displayed. Here, the reference value possessed by the control means 10 is displayed in advance on each screen, and the reference value can be adjusted up and down (UP, DOWN) by operating the switching buttons 32F, 32G. The reference value held by the control means 10 can be an existing value set in the previous preparation process. In this case, the value stored in the target spraying condition storage unit 12 is displayed as the first display value. According to this, repeated setting input can be simplified when it is desired to work under the same conditions.

  In the screen shown in FIG. 6A1, the counter sprinkling amount (L / 10a) of the target spraying conditions can be set and input, and the first display value is an appropriate counter value corresponding to the selected nozzles 1-6. This spraying amount is displayed and the vertical adjustment is possible. In the screen shown in FIG. 5B1, the vehicle speed (km / h) of the target spraying conditions can be set and input, and the first display value displays the appropriate vehicle speed corresponding to the selected nozzles 1 to 6, In contrast, vertical adjustment is possible. When the vehicle speed is set and input, a gear state suitable for obtaining this vehicle speed is also displayed. “L-2” in the figure indicates a low-speed two-stage transmission gear state. When there is no speed change gear state corresponding to the input vehicle speed, the display is not performed. In the screen shown in FIG. 5C1, the spraying pressure (MPa) of the target spraying conditions can be set and input, and the first display value indicates the proper spraying pressure corresponding to the selected nozzles 1 to 6. This makes it possible to adjust up and down.

  As the first standard ("Kijun 1"), select one of counter-spattering amount (spraying amount per unit area of 10a; L / 10a), vehicle speed (km / h), spraying pressure (MPa) When the determination button 32C or the switching button 32E is pressed after the setting input is performed, the screen is switched to the second setting input screen based on the selected nozzle (any one of nozzles 1 to 6) and the first reference setting input (this input screen). If the switch button 32D is pressed, the original screen can be restored). After the switching, the calculation process of the control means 10 is performed based on the nozzle information of the selected nozzle and the first reference set value. Since the first standard can be selected from a plurality of target spraying conditions, the operator selects conditions to be determined first in order to obtain appropriate spraying conditions by making use of his own spraying work experience. This makes it possible to make settings that make use of the experience of the operator.

  FIG. 5 is an explanatory diagram showing a second setting input screen after nozzle selection is performed and the first reference target spraying condition is set and input. On the second setting input screen, one of the plurality of target spraying conditions other than the first reference can be selected as the second reference (“kijun 2”), and the setting input for the second reference (“kijun 2”) is possible. To. On the second setting input screen, a plurality of target spraying conditions that are candidates for the second reference are listed so as to be selectable and can be set and input one by one. And the adjustable range of each target spraying condition is displayed, and the setting input within this adjustable range is enabled.

  In this example, a case is shown in which a counter-spattering amount (L / 10a) is set and input as the first reference. The target spraying conditions that are candidates for the second reference are the spraying pressure (MPa), the spraying flow rate (L / L). min) and vehicle speed (km / h) are displayed in a selectable manner. Fig. 11 (a) shows a state in which the spraying pressure (MPa) is selected, Fig. 11 (b) shows a state in which the spraying flow rate (L / min) is selected, and Fig. 11 (c) shows a state in which the vehicle speed (km / h) is selected. (In the figure, ■ indicates the selected item and □ indicates the non-selected item). The selection item is switched by switching buttons 32F and 32G.

  The adjustable range displayed on the second setting input screen is obtained for each target spraying condition by obtaining a range in which proper spraying is possible based on the selection of the nozzle and the first reference set value. In the illustrated example, based on the fact that the nozzle 1 is selected and the counter sprinkling amount is set and input to 25 L / 10a as the first reference, the control means 10 applies the spraying pressure (MPa), the spraying flow rate (L / min), The adjustable range of the vehicle speed (km / h) is derived and displayed as “minimum value to maximum value”.

  In the second setting input screen shown in FIGS. 5A, 5B, and 5C, values held by the control means 10 are also displayed on the screens in advance. This display value is an intermediate representative value within the adjustable range described above. This display value can also be an existing value set in the previous preparation step. In the drawing, the adjustment range of the spraying pressure is 0.5 to 2.5 MPa, the display value within the range is 1.5 MPa, the adjustment range of the spraying flow rate is 25 to 124 L / min, and the range is within that range. The display value is 100 L / min, the vehicle speed adjustment range is 1.8 to 3.3 km / h, the display value within that range is 3.0 km / h, and the vehicle speed is 3.0 km / h. It is shown that the speed change gear state to be executed is “L-2” (low speed two steps).

  As the second reference (“kijun 2”), when one of the spraying pressure (MPa), spraying flow rate (L / min), and vehicle speed (km / h) is selected and the decision button 32C or the switching button 32E is pressed, A screen for setting and inputting each target spraying condition ((a1), (b1), (c1) in the figure) is displayed. Here, the display value described above is shown, and the setting value can be adjusted up and down (UP, DOWN) by operating the switching buttons 32F, 32G. As the second reference (“kijun 2”), after setting input of spraying pressure (MPa), spraying flow rate (L / min), and vehicle speed (km / h), pressing the enter button 32C or the switching button 32E, The screen is switched to the third setting input screen based on the selected nozzle (any one of nozzles 1 to 6), the first reference, and the second reference setting input. When the switching button 32D is pressed on this input screen, the original screen is restored. it can). After the switching, the calculation process of the control means 10 is performed based on the nozzle information of the selected nozzle and the first and second reference set values.

  By providing such a second setting input screen, it is possible to appropriately set within the range while viewing the adjustable range displayed when setting and inputting the target spraying condition as the second reference. Therefore, it is possible to omit a troublesome input work of inputting the set value while calculating it at the site. Moreover, since the adjustable range is obtained so that the proper spraying condition is obtained by the arithmetic processing of the control means 10, if setting is input within the range, incorrect setting will be made erroneously. There is nothing. Furthermore, since the adjustable range of the vehicle speed is displayed, the worker can run the control machine at an appropriate work speed with peace of mind from the beginning of the work.

  FIG. 6 is an explanatory diagram showing a third setting input screen after nozzle selection is performed and the first and second reference target spraying conditions are set and input. On the third setting input screen, one of the plurality of target spraying conditions other than the first and second standards is selected as the third standard, and setting input of the third standard is enabled. In this third setting input screen, the first and second reference target spraying conditions that have been set and entered are listed and displayed, and the target spraying conditions that are candidates for the third reference can be selected and entered one by one. I have to. And the adjustable range of each target spraying condition is displayed, and the setting input within this adjustable range is enabled. The operation of selecting each target spraying condition from the state shown in FIG. 6 and enabling the setting input is the same as the example shown in FIG.

  FIG. 5A shows a state after the setting input in FIG. 5A1, and the spray pressure “1.7 MPa” as the second reference input by setting is displayed and the adjustable range “0.5”. ~ 2.5 "is displayed. Regarding the spraying flow rate (L / min) and the vehicle speed (km / h) serving as the third standard, the counter spraying amount 25L / 10a and the spraying pressure 1.7 MPa were set by selecting the nozzle 1 and corresponded to it. The adjustable range is shown.

  FIG. 5B shows a state after the setting input in FIG. 5B1, the spray flow rate “105 L / min” which is the second reference input by setting is displayed and the adjustable range “25 to 124”. Is displayed. The spray pressure (MPa) and the vehicle speed (km / h), which are the third standard, can be adjusted according to the choice of nozzle 1 after setting the counter sprinkling amount 25L / 10a and spraying flow rate 100L / min. A range is shown.

  FIG. 5C shows a state after the setting input in FIG. 5C1. The vehicle speed “3.2 km / h” which is the second reference input by setting is displayed and the adjustable range “1. 8-3.3 "is displayed. Regarding spraying pressure (MPa) and spraying flow rate (L / min) as the third standard, the counter spraying amount 25L / 10a and the vehicle speed 3.2km / h were set by selecting the nozzle 1 and corresponded to it. The adjustable range is shown.

  In the above-described example, the case where the counter spattering flow rate (L / 10a) is selected as the first reference has been described, but the same applies when the vehicle speed (km / h) or the spraying pressure (MPa) is selected as the first reference. Other target spraying conditions can be selected as the second and third criteria, and each target spraying condition can be set and input. In addition, when changing the target spraying condition once set and input, the target spraying condition to be changed can be selected and entered in the same manner from the screen shown in FIG. 5 or FIG. Based on the changed set value, an adjustable range of each target spraying condition is obtained.

  FIG. 7 shows an example of a menu selection screen preceding the setting input screen. In this example, an automatic spraying mode and a manual spraying mode can be selected. When the automatic spraying mode is selected, the red LED mounted on the display input device 30 is turned on, and when the manual spraying mode is selected, the green LED is turned on to display the difference in mode selection. The automatic spraying mode is a mode in which the detection signal of the spraying condition detection sensor 20 described above is controlled to approach the set target spraying condition, and the manual spraying mode is the operator's control regardless of the detection signal of the spraying condition detection sensor 20. This mode operates according to the settings.

  In any mode, the standby screen (FIGS. (A) and (b)) displays the selected nozzle and the amount of medicine stored in the tank 40. In the case of the automatic spraying mode ((a) in the figure), the completion status (%) of automatic spraying is also displayed. When the menu button 32B of the display input device 30 is pressed, a menu selection screen (FIGS. (C) to (e)) is displayed. The menu is selected with the switching buttons 32F and 32G. Examples of menus are “Leopard girder”, “Tank setting”, “Nozzle change”, “Sex reset”, “Exhibition setting”, “LED setting”, and “Guidance”. By selecting, the setting input guidance function as described with reference to FIGS. 3 to 6 is executed.

  By selecting the “exhibition setting” menu, the backlight lighting control means 13 shown in FIG. 1 can be operated to control the backlight of the liquid crystal display screen 31 of the display input device 30. Since the spraying work by the control machine is performed outdoors, the display input device 30 is likely to rise in temperature due to direct sunlight during the work, and when the display input device 30 is used outdoors for a long time, the liquid crystal is burned and the display screen becomes dark. There is a problem that the display performance deteriorates. Liquid crystal burns are caused by a rise in the temperature of the liquid crystal panel, and not only direct sunlight but also heating by turning on the backlight contributes greatly to this rise in temperature. The backlight lighting control means 13 in the embodiment of the present invention controls the lighting conditions of the backlight in order to prevent liquid crystal burns due to temperature rise.

  The basic operation of the backlight lighting control means 13 is always turned off for a set time only when the backlight of the liquid crystal display screen 31 is turned off and a lighting signal is input, that is, when the operator needs to turn on the light. When the display input device 30 is used outdoors, sufficient display performance can be ensured even without a backlight by utilizing reflection of sunlight. However, there are cases where the liquid crystal display screen 31 cannot be viewed without a backlight, for example, when the user enters the room after outdoor work. In this case, the backlight is turned on by a switch operation or the like. At this time, in order to prevent the liquid crystal panel from being heated by the backlight, the backlight is turned off after being turned on for a set time. The set time can be changed as appropriate, and can be controlled according to the use situation.

  Further, as an application example, since the liquid crystal display screen 31 can often be seen without a backlight both indoors and outdoors during daytime, it is also effective to turn on the backlight only in the morning and evening. In this case, the backlight function is controlled to be turned off in the daytime (for example, from 8 o'clock to 16 o'clock) by the timer function of the control means 10. In addition, a temperature sensor may be provided in the liquid crystal panel, and control to turn off the backlight by detecting that the temperature at which liquid crystal burns has occurred may be performed.

  By providing the backlight lighting control means 13 as described above, liquid crystal burning does not occur on the liquid crystal display screen 31 when used outdoors, so that the operator can always confirm accurate spraying information on the screen. Since the backlight is turned on only when necessary, unnecessary power can be reduced. It is possible to obtain an advantage that the deterioration of components due to the temperature rise due to the backlight lighting is reduced.

  As described above, the embodiments of the present invention have been described in detail with reference to the drawings. However, the specific configuration is not limited to these embodiments, and the design can be changed without departing from the scope of the present invention. Is included in the present invention. In addition, the above-described embodiments can be combined by utilizing each other's technology as long as there is no particular contradiction or problem in the purpose and configuration.

10: control means, 11: display input means, 12: target spraying condition storage means,
13: Backlight lighting control means,
20: spraying condition detection sensor, 21: spraying flow rate sensor, 22: spraying pressure sensor, 23: vehicle speed sensor,
30: Display input device (liquid crystal display input device), 31: Liquid crystal display screen,
32: Input button, 32A: Power button, 32B: Menu button, 32C: Enter button, 32D to 32G: Switch button,
40: Tank, 41: Pump, 42 (42A, 42B): Boom,
43: Electric pressure regulating valve, 43A: Adjustment motor,
50: Nozzle, 51: Dispersion pipe, 52: Current divider, 53 (53A-53D): Piping path,

Claims (8)

It is a spraying amount control device for a control machine that sprays drugs while self-propelled,
Control means (10) for controlling the spray amount so that the detected spray condition becomes the target spray condition set and input;
The control means (10) includes display input means (11) for displaying an adjustable range of the target spraying condition and enabling a setting input within the adjustable range, and is configured to set a plurality of target spraying conditions. A spray amount control device for a control machine, wherein an adjustable range of a target spraying condition that enables setting input one by one and allows a setting input later based on the target spraying condition previously set and input is determined .   The control target spraying amount control device according to claim 1, wherein the target spraying conditions include a spraying amount per unit area, a vehicle speed of the control device, a spraying flow rate, and a part or all of a spraying pressure. .   The spray amount control device for a control machine according to claim 1 or 2, wherein the adjustable range is determined based on appropriate spray conditions.   The display input means (11) also displays the state of the transmission gear corresponding to the adjustable range when the target spraying condition is a vehicle speed of the control machine. The spraying amount control device of the control machine described in 1.   A target spraying condition storage unit (12) for storing the set and inputted target spraying condition is provided, and the display input unit displays an existing value stored in the storage unit (12). The amount control apparatus of the control machine described in any one of -4.   The said display input means (11) enumerates and displays the said some target spraying conditions so that selection is possible, The spraying amount control apparatus of the control machine described in any one of Claims 1-5 characterized by the above-mentioned. A liquid crystal display input device (30) for displaying the output of the display input means (11);
A backlight lighting control means (13) for always turning off the backlight of the liquid crystal display screen (31) in the liquid crystal display input device (30) and turning it on for a set time when a lighting signal is inputted. The amount control apparatus of the control machine described in any one of 1-6. It is a method for controlling the spraying amount of a control machine that sprays a drug while running on its own,
As a preparatory process to control the spraying amount so that the detected spraying condition becomes the target spraying condition set and input,
A display input step for displaying an adjustable range of the target spraying condition and enabling a setting input within the adjustable range;
It is possible to set and input a plurality of target spraying conditions one by one, and to determine an adjustable range of target spraying conditions that can be set and input later based on the target spraying conditions that have been previously set and input. How to control the spraying amount of the control machine.

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