JP2018050481A - Signal discrimination system for agricultural implement - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a signal discrimination system for an agricultural implement which automatically discriminates the kind of a signal from a tractor to be acquired for controlling the agricultural implement to be mounted on a tractor.SOLUTION: In an agricultural implement signal discrimination system for controlling an actuator 30 provided in an agricultural implement mounted on a tractor for performing a farm work, a signal from the tractor is received to discriminate the kind of the signal received from a plurality of kinds of signals registered in advance, so that the control of the actuator 30 is performed by using the information of the signal from the discriminated tractor.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a farm machine signal discrimination system, and more particularly to a farm machine signal discrimination system that discriminates signals from a tractor used to control a farm machine mounted on a tractor.

  In a farm machine that is attached to a tractor and performs farm work, information on the current situation may be acquired and reflected in the farm work depending on the contents of the farm work. For example, Patent Document 1 describes a fertilizer spreader that detects a work speed using a ground wheel and a speed sensor provided on the ground wheel.

JP 2004-321163 A

  However, in the method of the ground wheel as in Patent Document 1, the ground wheel may not rotate reliably depending on the state of the field. In this case, it is necessary to provide a configuration including the grounding wheel and the speed sensor on the farm machine side, which increases the weight and cost.

  On the other hand, by acquiring information from the tractor, it may be reflected in the control of the agricultural machine. However, the type of signal in the information from the tractor may differ depending on the tractor, and a dedicated board is required for each type of signal.

  In view of the above problems, an object of the present invention is to provide an agricultural machine signal discrimination system that automatically discriminates the type of a signal from a tractor that is acquired for controlling an agricultural machine installed in a tractor.

  In order to achieve the above object, one of the representative signal discriminating systems for agricultural machinery according to the present invention is the signal discriminating system for agricultural machinery, which controls an actuator provided in an agricultural machinery that is attached to a tractor and performs agricultural work. The type of the signal from the received tractor is determined from a plurality of types registered in advance, and the actuator is controlled using information on the signal from the determined tractor. Features.

Furthermore, one of the signal discrimination systems for agricultural machinery according to the present invention is characterized in that the signal is a vehicle speed signal.
Furthermore, one of the signal discriminating systems for agricultural machinery according to the present invention is such that when the received signal from the tractor does not correspond to any of the registered signal types, the actuator in the normal mode in which the signal from the tractor is not used. It is characterized by controlling.

Furthermore, one of the signal discrimination systems for agricultural machinery according to the present invention is characterized in that it has a setting input unit, and the setting value in the normal mode can be set by operating the setting input unit.
Furthermore, one of the signal discrimination systems for agricultural machinery according to the present invention is characterized by having a display unit and displaying whether or not control is performed using a signal from a tractor.

Furthermore, one of the signal discrimination systems for agricultural machinery according to the present invention is characterized in that the actuator is an actuator for adjusting the opening of the shutter of the spreader.
Furthermore, one of the signal discrimination systems for agricultural machinery according to the present invention is characterized in that the actuator is a motor used for discharging fertilizer from a fertilizer applicator.

  ADVANTAGE OF THE INVENTION According to this invention, in the agricultural machinery signal discrimination | determination system, the kind of signal from the tractor acquired for control of the agricultural machinery installed in a tractor can be discriminate | determined automatically.

It is a block diagram which shows one Embodiment of the signal discrimination | determination system for agricultural machines of this invention. It is an example of the flowchart of the signal discrimination | determination system for agricultural machines of this invention. It is a flowchart which shows an example of the interruption process in the signal discrimination | determination system for agricultural machines of this invention. It is a side view which shows an example of the agricultural machine applied with the signal discrimination system for agricultural machines of Example 1. FIG. It is a top view which shows the motion of the shutter mechanism in the agricultural machine applied with the signal discrimination system for agricultural machines of Example 1, (a) shows the state in which the shutter was opened, (b) shows the state in which the shutter is half-opened. (C) shows a state in which the shutter is closed. It is a figure which shows the connection relation of the signal discrimination | determination system for agricultural machines of Example 1. FIG. It is a figure which shows the connection relation of the signal discrimination | determination system for agricultural machines of Example 2. FIG. It is a figure which shows the connection relation of the signal discrimination | determination system for agricultural machines of Example 3. FIG. It is a side view which shows an example of the agricultural machine applied with the signal discrimination system for agricultural machines of Example 4. It is a rear view which shows an example of the agricultural machine applied with the signal discrimination system for agricultural machines of Example 4. It is a side view of the feeding roller part of the agricultural working machine in FIGS.

  A mode for carrying out the present invention will be described.

  FIG. 1 is a block diagram showing an embodiment of a signal discrimination system for agricultural machines according to the present invention. The agricultural machine signal discrimination system of the present invention includes a discrimination control system unit 20 including a discrimination unit 21, a calculation unit 22, and a control unit 23, and further includes an output unit 26 to control the actuator 30. A setting input unit 24, a display unit 25, and a state detection unit 27 are provided as necessary. As will be described later, these arrangement locations are installed at appropriate locations according to the purpose.

  The determination unit 21 automatically determines the type of signal in the information from each tractor. As shown in FIG. 1, for example, a vehicle speed signal A sent by a vehicle speed sensor A (11) from a tractor A, a vehicle speed signal B sent by a vehicle speed sensor B (12) from a tractor B,. When there are a plurality of signal types such as a vehicle speed signal n sent from the vehicle speed sensor n (13) from n, this signal is discriminated. And the discrimination | determination part 21 discriminate | determines the input signal (here vehicle speed signal), and sends the information converted from the signal or signal to the calculating part 22. The signal type is specified by, for example, identifying the signal amplitude or frequency to determine the signal type having a different format. In addition, the determination unit 21 may include being able to determine part or all of the types of signals in accordance with a standard such as AG-PORT. The information from the current tractor state can be obtained by obtaining a signal from the tractor in real time or at short time intervals. In addition, the determination unit 21 can have a storage unit for registering in advance the type of signal from the tractor.

  The calculation unit 22 performs calculations necessary for controlling the actuator 30 based on the signal information determined by the determination unit 21. For example, how to operate the actuator 30 based on the determined signal is calculated. Further, the calculation unit 22 performs calculation for controlling the actuator 30 in consideration of the information input by the setting input unit 24 as necessary. Further, the calculation unit 22 performs calculations for controlling the actuator 30 in consideration of information from the state detection unit 27 as necessary. Moreover, it has a memory | storage part which memorize | stores required data as needed.

  The control unit 23 issues an operation command to the actuator 30 based on the calculation result in the calculation unit 22.

  The output unit 26 operates the actuator 30 based on the operation command from the control unit 23.

  The actuator 30 is an actuator installed on the side of the agricultural machine to be attached to the tractor. For example, it is used to move a part on the agricultural machine side by a hydraulic cylinder, an electric hydraulic cylinder, a motor or the like.

  The setting input unit 24 is a means for an operator to input a value (for example, a setting value) necessary for control as necessary. For example, switches such as push button switches and toggle switches and touch panels can be applied. The setting input unit 24 may be arranged near the driver's seat of the tractor so that the operator can easily operate it.

  The display unit 25 includes a value set by the setting input unit 24, a determination result by the determination unit 21, a calculation result by the calculation unit 22, information on control by the control unit 23, a status of the actuator 30 and the agricultural machine by the state detection unit 27, and the like. It is a means for displaying information as needed. The display unit 25 can employ various display means such as an LED lamp, 7-segment (7-segment), liquid crystal, and touch panel display. Moreover, the means by a sound or an audio | voice may be included. It is preferable that the operator can be placed near the driver's seat of the tractor so that the operator can easily confirm.

  The state detection unit 27 is a means for detecting the current state of the actuator 30 or a part of the agricultural machine operated by the actuator 30. For example, the state may be detected using various sensors such as a rotation sensor and a stroke sensor. Further, the current state may be detected from the current or voltage value of the actuator 30.

  FIG. 2 is an example of a flowchart of the agricultural machinery signal discrimination system of the present invention. These processes are performed by the discrimination control system unit 20 and basically performed by the discrimination unit 21 and the calculation unit 22.

  When the power is turned on, for example, when the power switch is pressed, this processing is started (S101). First, the normal mode is activated (S102). The normal mode is a mode in which vehicle speed linkage (control of the actuator 30 according to the vehicle speed) is not performed, and a vehicle speed signal from the tractor is not used. In the normal mode, the calculation unit 22 performs a calculation based on a value set and stored in advance or a value input by the setting input unit 24. For this reason, when the vehicle speed signal is not input from the determination unit 21, the calculation unit 22 performs calculation in the normal mode.

  Next, it is determined whether or not the vehicle speed signal A is input (S110). The determination here is performed by the determination unit 21. The discriminating unit 21 holds information on the signal type of the vehicle speed signal A in advance. For example, characteristics such as the amplitude and frequency of the signal of the vehicle speed signal A are stored, and if the characteristics match the characteristics of the vehicle speed signal A, it is determined that the vehicle speed signal A is input.

  When it is determined in S110 that the vehicle speed signal A has been input, the mode is switched to mode A (S111). In mode A, information is read from the signal format of the vehicle speed signal A, and the read vehicle speed information is used by the calculation unit 22. Information is read by the determination unit 21 or the calculation unit 22.

  And it is discriminate | determined whether the vehicle speed signal A is input continuously (S112). This determination method is the same as in S110. Here, if it is determined that the vehicle speed signal A is input, the mode A is continued (S111).

  When it is determined in S112 that the vehicle speed signal A is not input, the mode is switched to the error mode A (S113). In the error mode A, the display unit 25 displays that the vehicle speed signal A is not input.

  Then, it is determined again whether the vehicle speed signal A is input (S114). If the vehicle speed signal A is input, the process goes to S111 and the mode A is switched. If the vehicle speed signal A is not input, the error mode A is continued (S113).

  If it is determined in S110 that the vehicle speed signal A is not input, it is determined whether or not the vehicle speed signal B is input (S120). The determination here is performed by the determination unit 21 as in S110. The determination method is the same as S110 when the vehicle speed signal A is replaced with the vehicle speed signal B. Here, when it is determined that the vehicle speed signal B is input, the processing of S121 to S124 is performed. This process is the same as S111 to S114 when the vehicle speed signal A is replaced with the vehicle speed signal B, the mode A is replaced with the mode B, and the error mode A is replaced with the error mode B.

  If it is determined in S120 that the vehicle speed signal B is not input, it is determined whether or not the next vehicle speed signal is input. This process is repeated, and the same processing is performed up to the nth vehicle speed signal n registered in advance as the vehicle speed signal A, the vehicle speed signal B, the vehicle speed signal C, the vehicle speed signal D.

  Finally, it is determined whether or not the vehicle speed signal n is input (S130). The determination here is also performed by the determination unit 21 as in S110. The determination method is the same as S110 when the vehicle speed signal A is replaced with the vehicle speed signal n. Here, when it is determined that the vehicle speed signal n is input, the processing of S131 to S134 is performed. This process is also the same as S111 to S114 when the vehicle speed signal A is replaced with the vehicle speed signal n, the mode A is replaced with the mode n, and the error mode A is replaced with the error mode n.

  When it is determined that the vehicle speed signal n is not input, the normal mode is continued (S102). That is, when it is determined that all the registered n types of vehicle speed signals are not input, the normal mode is continued.

  Thus, by registering a plurality of vehicle speed signals in advance and determining them in order, it is possible to automatically determine the types of vehicle speed signals that differ depending on the tractor without replacing parts such as a board. And it can control appropriately based on the vehicle speed signal.

  FIG. 3 is a flowchart showing an example of interrupt processing in the agricultural machine signal discrimination system of the present invention. In the interrupt process (S201) when the process of FIG. 2 is performed, here, when the power switch is pressed (S202), the power is turned off (S203).

  FIG. 4 is a side view illustrating an example of the agricultural machine applied in the agricultural machine signal discrimination system according to the first embodiment.

  Here, the agricultural machine is a spreader 100 attached to the tractor 1. The spreader 100 is attached to the rear part of the tractor 1 by attaching a mast 102 and a lower arm 103 as attachment parts to the top link 3 and the lower link 4 on the tractor 1 side. Moreover, the input shaft 101 can input PTO (Power take-off) power from the tractor 1 through a joint (not shown).

  And the spreader 100 has the hopper 110 which is a container, and the dispersion | distribution cylinder 120 is provided in the main-body part 115 of the lower part. The rear tip 120a side of the spray tube 120 protrudes from the main body 115, and the spray tube 120 has the rear tip 120a side centered on the inside of the main body 115 based on the power input from the input shaft 101 (the direction of travel is the front). (In the case of the above), it is configured to swing (reciprocate) within a certain angle from side to side. As a result, the contents in the hopper 110 fall into the spray tube 120, travel through the spray tube 120, and are discharged from the rear end 120 a side. At this time, since the spreading cylinder 120 is oscillating, the centrifugal force can spread the contents on the farm scene 190 with a constant left and right width. A fertilizer etc. are mentioned as a content put into the hopper 110. FIG.

  A shutter mechanism described in FIG. 5 is provided between the hopper 110 and the spray cylinder 120, and this is operated by an actuator 130 provided in the main body 115.

  FIG. 5 is a plan view showing the movement of the shutter mechanism in the agricultural machine applied in the agricultural machine signal discriminating system according to the first embodiment. FIG. 5A shows a state in which the shutter is opened, and FIG. A half-open state is shown, and (c) shows a state where the shutter is closed.

  The plate 140 is a member on a disc that is attached to the bottom of the hopper 110 so as to block the bottom of the hopper 110, and has three fan-shaped holes 141 at equal angular intervals.

  The shutter member 150 is a plate-like member provided on the lower side of the plate 140, and includes three shutters 152 that are connected to the center portion 153 and formed at equal angular intervals. The shutter 152 has a size that closes the hole 141, and may have a fan shape that matches the shape of the hole 141. Further, the adjacent shutters 152 are formed at a wider interval than the hole 141. The central portion 153 of the shutter member 150 is rotatably attached to the center 142 of the plate 140. One of the shutters 152 has a lever 151 formed outward.

  The actuator 130 is a cylinder, and a rod portion 132 connected to a piston from the cylinder main body 131 projects and expands and contracts. An attachment portion 133 is provided at the tip of the rod portion 132, and an outer end portion of the lever 151 is attached. The shutter member 150 rotates around the center portion 153 in accordance with the expansion and contraction of the rod portion 132. The actuator 130 can employ an electric hydraulic cylinder that operates by electricity.

  In the state of FIG. 5A, the rod portion 132 of the actuator 130 is in an extended state, each shutter 152 in the shutter member 150 is hidden under the plate 140, and the hole 141 is fully opened. Thereby, since the contents of the hopper 110 pass through the hole 141 in the maximum amount and are sent to the spray tube 120, the spray amount is maximized.

  In the state of FIG. 5B, the rod portion 132 of the actuator 130 is in an intermediate position, and each shutter 152 in the shutter member 150 closes the hole 141 of the plate 140 more than half. Thereby, since the amount of the contents of the hopper 110 passing through the hole 141 is reduced, the spraying amount is reduced.

  In the state of FIG. 5C, the rod portion 132 of the actuator 130 is in a contracted state, and each shutter 152 in the shutter member 150 closes all the holes 141 of the plate 140. Thereby, since the contents of the hopper 110 cannot pass through the hole 141, they are not sprayed.

  In this way, by operating the actuator 130, the opening degree of the hole 141 by the shutter 152 can be adjusted, and the amount of spraying from the spraying cylinder 120 can be adjusted.

  FIG. 6 is a diagram illustrating a connection relationship of the agricultural machine signal discrimination system according to the first embodiment. Here, the spreader 100 which is a farm working machine is not shown, and only the actuator 130 provided in the spreader 100 is described.

  In the first embodiment, the operation box 50 is connected to the actuator 130 by wire, and the operation box 50 is also connected to the connector (the power connector 6 and the A connector 7) of the tractor 1 by wire.

  The operation box 50 is an operation / display unit that is disposed near the driver's seat of the tractor 1 and can be remotely operated. In the first embodiment, the operation box 50 includes the determination unit 21, the calculation unit 22, the control unit 23, the setting input unit 24, the display unit 25, and the output unit 26.

  The operation box 50 includes a power switch 51 a, a setting switch 51 b, an open / close switch 51 c, an adjustment switch (increase) 51 d, and an adjustment switch (decrease) 51 e, which can be the setting input unit 24. Furthermore, the operation box 50 includes an LED display 52a, a shutter opening display 52b, and a spray amount display 52c, which can be the display unit 25.

  The power switch 51a is a switch for turning on / off the power of the operation box 50, and also serves as a power switch for the determination unit 21, the calculation unit 22, and the control unit 23 built in the operation box 50. it can. This corresponds to the power switch described in S101 of FIG. 2 and S202 of FIG.

  The setting switch 51b is a switch for setting the spread amount, setting the opening degree of the shutter 152, and determining them.

  The opening / closing switch 51c is a switch for controlling the actuator 130 to open the shutter 152 to a predetermined opening degree when starting work. Alternatively, the shutter 152 may be closed when pressed again.

  The adjustment switch (increase) 51d and the adjustment switch (decrease) 51e are switches for adjusting the spread amount and the opening degree of the shutter 152.

  The LED display 52a is a display unit that notifies the normal mode or the type of vehicle speed signal described in FIG. 2, for example, the normal mode, the type of the vehicle speed signal, depending on the blinking state of the LED lamp or the color difference. Can be informed. Only the difference between the normal mode and the mode based on the vehicle speed signal may be displayed. Further, the operation box 50 may be provided with means for informing the normal mode or the mode (by which kind of vehicle speed signal) by sound or voice.

  The shutter opening display 52b displays the shutter opening numerically by 7 segments or the like. At the time of setting, the set value of the shutter opening is displayed. At the time of work, when the state detecting unit 27 is provided, the current shutter opening is determined based on the information from the state detecting unit 27 or the control value in the control unit 23. The value can be displayed.

  The spread amount display 52c displays the spread amount as a number using 7 segments or the like. At the time of setting, the set value of the spread rate can be displayed. Further, at the time of work, when a vehicle speed signal is obtained from the tractor 1, the current spraying amount can be calculated and displayed by the calculation unit 22 based on the vehicle speed information and the shutter opening information. At this time, the shutter opening information may be acquired from the information from the state detection unit 27 when the state detection unit 27 is provided, or may be acquired from the control value information in the control unit 23. In addition, when information from the tractor 1 cannot be obtained, the set value in the normal mode may be displayed.

  The operation box 50 is connected to one end of the harness 55. The harness 55 includes a wiring 56a, a wiring 57a, a wiring 58a, and a wiring 59a, and is connected to a power supply connector 56 and a wiring 57a that are connected to the wiring 56a on the tip side that is the other end of the harness 55. An A connection connector 57, a B connection connector 58 connected to the wiring 58a, and an actuator connection connector 59 connected to the wiring 59a are provided.

  The power connection connector 56 is a connector that can be connected to the power connector 6. The power from the power connector 6 is supplied to the operation box 50 through the power connector 56 and the wiring 56a.

  The A connection connector 57 is a connector that can be connected to the A connector 7. When connecting to the A connector 7, information from the A connector 7 is sent to the operation box 50 via the A connection connector 57 and the wiring 57a.

  The B connection connector 58 is a connector that can be connected to the B connector 8. When connecting to the B connector 8, information from the B connector 8 is sent to the operation box 50 via the B connection connector 58 and the wiring 58a.

  The actuator connector 59 is a connector that can be connected to the actuator connector 136. Electric power from the operation box 50 and information necessary for control are sent to the actuator 130 via the actuator connector 59.

  It should be noted that the connectors are not limited to the A connection connector 57 and the B connection connector 58, and only the types of connectors that can be used for acquiring a vehicle speed signal may be provided. The operator can select and connect an appropriate connector. These connectors may include some or all of the types of connectors that comply with standards such as AG-PORT.

  The tractor 1 is provided with a power connector 6 and an A connector 7. Further, depending on the type of the tractor 1, a B connector 8 is provided.

  The power connector 6 is connected to a battery (not shown) provided in the tractor 1 via a wiring 6 a and can be a power source to which the power connector 6 is connected.

  The A connector 7 is a connector for outputting a vehicle speed signal A based on the vehicle speed sensor A shown in FIG. It is connected to the tractor 1 side via the wiring 7a.

  The B connector 8 is a connector for outputting a vehicle speed signal B based on the vehicle speed sensor B shown in FIG. It is connected to the tractor 1 side via the wiring 8a.

  One end of a harness 135 is connected to the actuator 130, and an actuator connector 136 is connected to the other end of the harness 135. The actuator connector 136 is composed of two connectors: a connector for inputting power and a connector for receiving an operation command signal. The actuator connector 136 is arranged between the tractor 1 and the spreader 100 so that the actuator connector 59 and the actuator connector 136 can be easily detached when the spreader 100 is detached from the tractor 1. Good.

  The operator connects the power connection connector 56 and the power connector 6, connects the A connection connector 57 and the A connector 7, and connects the actuator connection connector 59 and the actuator connector 136.

  When the power is turned on by pressing the power switch 51a in this state, power is supplied from the tractor to the operation box 50 via the power connector 6. Then, the control shown in FIG. 2 is performed. Here, when the vehicle speed signal A is input from the A connector 7, the determination unit 21 in the operation box 50 determines the vehicle speed signal A, and the calculation unit 22 in the operation box 50 performs a calculation based on the information based on the signal. Do. At this time, the LED display 52a performs a display indicating that the mode is based on the vehicle speed signal A. Here, the operator sets the spraying amount (for example, Kg / 10a) per unit area in advance using the setting switch 51b, the adjustment switch (increase) 51d, and the adjustment switch (decrease) 51e.

  Next, when the operation is started by moving the tractor 1 and pressing the open / close switch 51c or the like, if the calculation unit 22 determines that the vehicle speed signal A is input, the calculation unit 22 opens the shutter 152 based on the input vehicle speed. Determine the degree. Then, the control unit 23 operates the actuator 130 to control the shutter 152 to the opening degree. At this time, for example, if the vehicle speed increases, it is necessary to increase the spraying amount per hour accordingly, so that the shutter 152 is controlled to open. Further, if the vehicle speed becomes slow, it is necessary to reduce the amount of spraying per hour accordingly, so the shutter 152 is controlled to close. In this way, the spraying amount per unit area is controlled to be constant. Moreover, when it has the state detection part 27 provided in the spreader 100, you may consider the information from the state detection part 27 for calculation. The set spray amount is displayed on the spray amount display 52c, and the opening degree of the shutter 152 is displayed on the shutter opening display 52b.

  On the other hand, when it is determined that the vehicle speed signal is not input, control is performed to set the opening of the shutter set in advance as the normal mode.

  Further, when the vehicle speed signal type is the vehicle speed signal B in different types of tractors, the B connection connector 58 and the B connector 8 are connected, and the determination unit 21 receives the vehicle speed signal B from the B connector 8. And control based on that.

  Thus, the vehicle speed signal from the tractor 1 can be automatically determined, and the actuator 130 can be controlled based on the vehicle speed signal to keep the spray amount constant. Even if no vehicle speed signal is input, the work can be performed in the normal mode.

  FIG. 7 is a diagram illustrating a connection relationship of the agricultural machine signal discrimination system according to the second embodiment. In the second embodiment, differences from the first embodiment will be mainly described, and the same portions are denoted by the same reference numerals.

  The second embodiment is different from the first embodiment in that the actuator 130 can be wirelessly controlled by the operation box 60 via the work machine side control box 80.

  The operation box 60 has a wireless transmission / reception function with respect to the operation box 50 of the first embodiment. The operation box 60 includes a determination unit 21, a calculation unit 22, a control unit 23, a setting input unit 24, and a display unit 25, and further transmits an operation command from the control unit 23 to the work machine side control box 80. It has a transmission part to do. Moreover, it has a receiving part for receiving the operation state from the work machine side control box 80, and the received information can be displayed on the display part 25 or can be added to the calculation in the calculating part 22. it can.

  Further, the operation box 60 is connected to one end of the harness 65. The harness 65 includes a wiring 56a, a wiring 57a, and a wiring 58a, and a power connection connector 56 that is connected to the wiring 56a and an A connection connector that is connected to the wiring 57a are provided on the distal end side that is the other end of the harness 65. 57, B connection connector 58 connected to wiring 58a is provided. As in the first embodiment, the connectors are not limited to the A connection connector 57 and the B connection connector 58, but may be provided only for the types of connectors that can be used to acquire the vehicle speed signal.

  One end of the harness 138 is connected to the actuator 130, and the work machine side control box 80 is connected to the other end of the harness 138.

  The work machine side control box 80 is installed on the farm work machine (spreader 100) side, and is connected to the work machine side battery 85. The work machine side control box 80 includes a receiving unit that can receive a signal from the operation box 60, a transmitting unit that can transmit a signal to the operation box 60, and a control unit 23 that can control the actuator 130 based on the information of the operation command received. The output unit 26 is provided.

  The work machine side battery 85 is installed on the farm work machine (spreader 100) side. The work machine side control box 80 may be connected to a battery on the tractor 1 side and used as a power source.

  Accordingly, the operation command from the control unit 23 of the operation box 60 is wirelessly sent to the work machine side control box 80, and the work machine side control box 80 receives the operation command to control the actuator 130. The work machine side control box 80 and the actuator 130 can be powered by the work machine side battery 85. In addition, information on the operation status of the opening degree of the actuator 130 and the shutter 152 is wirelessly transmitted from the work machine side control box 80 to the operation box 60 and can be added to the calculation of the calculation unit 22 of the operation box 60. The state of the opening can be displayed on the shutter opening display 52b which is the display unit 25 of the operation box 60.

  With these configurations, since the operation box 60 is disposed on the tractor 1 side, wiring for connecting the tractor 1 and the farm machine (spreader 100) side becomes unnecessary, and there is no work for separating the wiring when removing the farm machine. At the same time, damage due to forgetting to remove the wiring can be prevented.

  FIG. 8 is a diagram illustrating a connection relationship of the agricultural machine signal discrimination system according to the third embodiment. In the third embodiment, differences from the second embodiment will be mainly described, and the same portions are denoted by the same reference numerals.

  In the third embodiment, the operation box 70 communicates with the tractor-side control box 90 wirelessly without being connected to the harness. Further, the tractor side control box 90 communicates with the work machine side control box 80 'wirelessly.

  The operation box 70 has a setting input unit 24, a display unit 25, and a wireless transmission / reception function. Information such as setting values input by the setting input unit 24 is sent from the transmission unit to the tractor-side control box 90. In addition, the operation box 70 can receive the display command information from the tractor side control box 90 by the receiving unit and display the information on the display unit 25.

  The tractor side control box 90 is connected to the wiring 56a, the wiring 57a, and the wiring 58a. The power connection connector 56 connected to the wiring 56a, the A connection connector 57 connected to the wiring 57a, and B connected to the wiring 58a. A connection connector 58 is provided. As in the first and second embodiments, the connectors are not limited to the A connection connector 57 and the B connection connector 58, but may be provided only for the types of connectors that can be used to acquire the vehicle speed signal.

  The tractor side control box 90 includes a determination unit 21, a calculation unit 22, and a control unit 23, and further includes a transmission unit for transmitting an operation command from the control unit 23 to the work machine side control box 80 'wirelessly. Have. In addition, a receiving unit for receiving the operation state from the work machine side control box 80 ′ is provided, and the received information can be added to the calculation in the calculation unit 22. In addition, a transmission unit that wirelessly transmits information received from the work machine side control box 80 ′ to the operation box 70 and a reception unit that receives operation information from the operation box 70 are also provided. In addition, the power supply of the tractor side control box 90 can be obtained through the wiring 6a, the power supply connector 6, the power supply connector 56, and the wiring 56a.

  The work machine side control box 80 ′ is basically the same as the work machine side control box 80 of the second embodiment, but has a transmission / reception destination different from each other, a receiving unit that can receive a signal from the tractor side control box 90, and a tractor side control. A transmission unit capable of transmitting a signal to the box 90 is provided.

  Information such as operations and setting values from the operation box 70 is wirelessly transmitted to the tractor-side control box 90 and used for calculation by the calculation unit 22 of the tractor-side control box 90. The operation command from the control unit 23 of the tractor-side control box 90 is wirelessly transmitted to the work machine-side control box 80 ′, and is received by the work machine-side control box 80 ′ to control the actuator 130. The work machine side control box 80 ′ and the actuator 130 can be powered by the work machine side battery 85. The work machine side control box 80 ′ may be connected to a battery on the tractor 1 side and used as a power source. Further, information on the operation status of the opening degree of the actuator 130 and the shutter 152 is wirelessly transmitted from the work machine side control box 80 ′ to the tractor side control box 90 and is added to the calculation of the calculation unit 22 of the tractor side control box 90. be able to. The information is further transmitted wirelessly from the tractor side control box 90 to the operation box 70, and the state of the opening can be displayed on the shutter opening display 52b which is the display unit 25 of the operation box 70.

  These configurations eliminate the need for wiring of the operation box 70, increase the portability of the operation box 70 by the operator, and make it easier to check the operation and display.

  FIG. 9 is a side view illustrating an example of a farm machine applied in the farm machine signal discrimination system according to the fourth embodiment. FIG. 10 is a rear view illustrating an example of a farm machine applied in the farm machine signal discrimination system according to the fourth embodiment. FIG. 11 is a side view of the feeding roller portion of the agricultural machine in FIGS. In the fourth embodiment, differences from the first to third embodiments are mainly described, and the same portions are denoted by the same reference numerals.

  In Example 4, the example at the time of changing the spreader 100 demonstrated in Examples 1-3 to the fertilizer application 200 is shown. Here, the actuator 130 corresponding to the actuator 30 is the motor 210. Although not shown, the setting switch 51b in the operation boxes 50, 60, and 70 is used for setting the rotation of the motor 210 or the feeding roller 211 and determining these in addition to setting and determining the spray amount. The opening / closing switch 51c can be changed to a motor start / stop switch, and the shutter opening display 52b can be changed to display the number of rotations of the motor 210 or the feeding roller 211.

  The fertilizer applicator 200 applies fertilizer by dropping the fertilizer in the hopper 201 from the hose 203 when the feeding roller 211 provided at the lower portion of the hopper 201 rotates. The power from the motor 210 is transmitted to the feeding roller 211 via the rotating shaft 212 and the like, and the feeding roller 211 rotates. The fertilizer applicator 200 shown in FIG. 10 has four hoppers 201 in the lateral direction, and a feeding roller 211 is installed in each of these. On the other hand, there are two motors 210 on the left and right sides, and each motor 210 transmits power to two feeding rollers 211. This is to cope with the case where it is desired to fertilize only one of the left and right sides. The fertilizer applicator 200 is installed on the upper part of the rotary 220 via a support column 202 or the like.

  The rotary 220 is mounted on the rear portion of the tractor 1 on the mounting portion 222 side. The power output from the PTO of the tractor is input from the input shaft 221 and transmitted to the tillage unit 223 via the gear, chain, shaft, etc. provided in the rotary 220, and the tillage unit 223 rotates. The plowing work is performed by

  The feeding roller 211 is provided with a drop mouth 213 (see FIG. 11), and fertilizer enters from above. Since the size of the pit 213 is fixed, the amount of fertilizer entering here is a constant amount. When the feeding roller 211 is rotated, the dropping port 213 is also rotated. When the dropping port 213 is on the lower side, the fertilizer is dropped from the hose 203 and discharged.

  For this reason, if the rotation speed of the feeding roller 211 linked to the motor 210 is fast, the amount of discharged fertilizer increases. If the rotation speed of the feeding roller 211 linked to the motor 210 is slow, the amount of discharged fertilizer decreases. .

  When the worker starts the work by moving the tractor 1 and pressing the start switch of the motor 210, the calculation unit 22 performs the determination process shown in FIG. When it is determined that the vehicle speed signal is input, the rotational speed of the motor 210 is determined based on the input vehicle speed, and the control unit 23 operates the motor 210 to control the rotation. At this time, for example, if the vehicle speed is increased, it is necessary to increase the amount of spraying per unit of time, so control is performed to increase the rotation speed of the motor 210 and increase the rotation speed of the feeding roller 211 in conjunction therewith. Further, if the vehicle speed becomes slow, it is necessary to reduce the amount of spraying per unit of time, so control is performed to lower the rotational speed of the motor 210 and to lower the rotational speed of the feeding roller 211 in conjunction therewith. In this way, the spraying amount per unit area is controlled to be constant. Moreover, when it has the state detection part 27 provided in the fertilizer applicator 200, you may consider the information from the state detection part 27 in calculation.

  On the other hand, when it is determined in the determination process shown in FIG. 2 that the vehicle speed signal is not input, the control can be performed based on the rotation speed of the motor 210 or the feeding roller 211 set in advance as the normal mode.

  As described above, the embodiment of the present invention has been described with reference to the first to fourth embodiments. However, the present invention is not limited to the above-described embodiments, and includes various modifications. For example, the invention is not limited to the one having all the configurations (structures) provided in the above-described embodiments. It is also possible to delete a part of the configuration of a certain embodiment, replace it with the configuration of another embodiment, or add the configuration of another embodiment to the configuration of a certain embodiment.

  For example, in the above-described embodiment, the vehicle speed signal from the tractor 1 has been described. However, not only the vehicle speed signal but also the determination of information including PTO information from the tractor 1, turning information, position information of the lower link 4, and the like. Can be used.

  The actuator 30 can also be applied to an actuator other than an electrohydraulic cylinder or a motor.

  Further, the agricultural machine is not limited to a spreader and a fertilizer applicator, and can be applied to an agricultural machine that acquires information from a tractor and uses it to control an actuator.

  In the first embodiment, it has been described that the determination unit 21, the calculation unit 22, and the control unit 23 are provided in the operation box 50. However, since they are wired, they can be provided on the farm machine side.

DESCRIPTION OF SYMBOLS 21 Discriminating part 22 Calculation part 23 Control part 24 Setting input part 25 Display part 26 Output part 27 State detection part 30, 130 Actuator 50, 60, 70 Operation box 56 Power supply connector 57 A connection connector 58 B connection connector 59 Actuator connection connector 80, 80 'work machine side control box 90 tractor side control box 100 spreader 152 shutter 200 fertilizer applicator 210 motor 211 feed roller

Claims (7)

In the agricultural machine signal discriminating system for controlling the actuator provided in the agricultural machine that is attached to the tractor and performs the agricultural work,
The signal from the tractor is received, the type of the signal from the received tractor is discriminated from a plurality of types registered in advance, and the actuator is controlled using information on the signal from the discriminated tractor. A signal discrimination system for agricultural machines. In the agricultural machine signal discrimination system according to claim 1,
A signal discriminating system for agricultural machinery, wherein the signal is a vehicle speed signal. In the agricultural machinery signal discrimination system according to claim 1 or 2,
When the received signal from the tractor does not correspond to any registered signal type, the actuator is controlled in a normal mode in which the signal from the tractor is not used. . In the agricultural machinery signal discrimination system according to claim 3,
A signal input system for agricultural machinery, comprising a setting input unit, wherein the setting value of the normal mode can be set by operating the setting input unit. In the agricultural machine signal discrimination system according to any one of claims 1 to 4,
A signal discriminating system for agricultural machinery, which has a display unit and displays whether control is performed using a signal from a tractor. In the agricultural machinery signal discrimination system according to any one of claims 1 to 5,
A signal discriminating system for agricultural machinery, wherein the actuator is an actuator for adjusting the opening of a shutter of a spreader. In the agricultural machinery signal discrimination system according to any one of claims 1 to 5,
A signal discriminating system for agricultural machinery, wherein the actuator is a motor used for discharging fertilizer from a fertilizer applicator.

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