JP7281798B2 - Communication system for agricultural machinery - Google Patents

Description

TECHNICAL FIELD The present invention relates to a communication system for agricultural machinery, and more particularly to a communication system for agricultural machinery that is applied to an agricultural machinery attached to a tractor.

Agricultural machinery attached to a tractor is usually attached to the rear side of the tractor for agricultural work. For this reason, in order to visually confirm the state of the agricultural implement, the worker needs to face the rear side and check the agricultural implement behind the tractor. At this time, the worker can perform more accurate farm work by displaying the state and operation of the farm work machine with some kind of display device at hand.

Patent Literature 1 describes a configuration in which a remote control system for an agricultural machine can operate different machines by changing an operation display screen for each model of the machine on a touch panel section.

In Patent Document 2, the work machine ID of the work machine transmitted to the communication terminal is confirmed by confirmation communication between the work machine and the communication terminal, and execution associated with the work machine ID is executed from a plurality of applications operating on the communication terminal. A working machine operation program is described that causes a communication terminal to select an application and display an execution application on a display screen of the communication terminal.

JP 2011-142884 A JP 2017-209032 A

In Patent Document 1, communication is performed by the same communication method on the operation box side and the control section side. For this reason, when using operation boxes for different communication methods, it is necessary to prepare a control unit corresponding to each communication method, which increases costs and complicates management.

In Patent Document 2, it is assumed that communication between the work machine and the communication terminal can be performed using one communication method, and there is no description of how to deal with the case where different communication methods are used.

SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to provide a communication system for agricultural machinery that can be applied to agricultural machinery that is mounted on a tractor and that has increased communication versatility.

In order to achieve the above object, one representative communication system for agricultural machinery according to the present invention is a communication system for agricultural machinery that is attached to a tractor and applied to an agricultural machinery that performs agricultural work. a communication terminal capable of wireless communication with a device; an actuator installed in the agricultural working machine ; Communication between the display device and the communication terminal uses a first communication method, communication between the control unit and the communication terminal uses a second communication method, and the communication terminal receives a signal from the display device. data is received and transmitted to the control unit, the data is converted from the first communication method to the second communication method , the communication terminal is a portable terminal having a wireless communication function, and the display A screen is provided .

Further, in one of the communication systems for agricultural machinery according to the present invention, when the communication terminal receives data from the control unit and transmits the data to the display device, the data is changed from the second communication method to the first communication method. Characterized by converting to
Further, one of the communication systems for agricultural machinery according to the present invention includes a sensor installed in the agricultural machinery, the control section can acquire information of the sensor, and the display device can acquire information of the sensor. It is characterized by displaying the state of the agricultural work machine based on the above.

Further, in one of the communication systems for agricultural machinery of the present invention, the display screen of the display device is configured by a touch panel, and the screen of the display device displays a diagram, picture, or text corresponding to the agricultural machinery, When a figure, picture, or character corresponding to the portion to be operated by the actuator on the display screen of the display device is touched, the information is sent to the control unit, and the control unit instructs to operate the actuator. Characterized by
Further, in one of the communication systems for agricultural machinery of the present invention, when the actuator is operated, the screen of the display device displays a diagram, picture, or text corresponding to the state after the actuator is operated. characterized by

Further, one of the communication systems for agricultural machinery according to the present invention is a communication system for agricultural machinery that is applied to agricultural machinery that is attached to a tractor to perform agricultural work, and is capable of wireless communication with a display device that can be arranged on the tractor. a terminal, an actuator installed in the agricultural work machine, and a control unit that controls the actuator and is capable of wireless communication with the communication terminal, and communication between the display device and the communication terminal is performed according to a first communication method. and a second communication method is used for communication between the control unit and the communication terminal, and the communication terminal receives data from the display device and transmits the data to the control unit using the second The first communication method is converted to the second communication method, the display screen of the communication terminal is configured by a touch panel, and the screen of the communication terminal includes a diagram, picture, or text corresponding to the agricultural implement. , when a drawing, picture, or character corresponding to a portion to be operated by the actuator on the display screen of the communication terminal is touched, the information is sent to the control unit, and the control unit operates the actuator. characterized by
Further, in one of the communication systems for agricultural machinery of the present invention, when the actuator is operated, the screen of the communication terminal displays a diagram, picture, or text corresponding to the state after the actuator is operated. characterized by
Further, in one of the agricultural machinery communication systems of the present invention, the first communication method uses classic Bluetooth (registered trademark), and the second communication method uses BLE (Bluetooth Low Energy). do .

INDUSTRIAL APPLICATION According to this invention, in the communication system for agricultural machinery, it can be applied to the agricultural machinery attached to a tractor, and the general versatility of communication can be improved.
Problems, configurations, and effects other than those described above will be clarified by the following description of the embodiments.

1 is a block diagram of a first embodiment of a communication system for agricultural machinery according to the present invention; FIG. 1 is a schematic plan view of a first embodiment of a communication system for agricultural machinery according to the present invention; FIG. 1 is a rear view of an agricultural working machine applied in the first embodiment of the communication system for agricultural working machine of the present invention; FIG. 4 shows an example of screen display for device search in the first embodiment of the communication system for agricultural machinery of the present invention. 4 shows an example of a work state display on the display device of the communication system for agricultural machinery according to the first embodiment of the present invention. 1 shows an example of a horizontal state display of the communication system for agricultural machinery according to the first embodiment of the present invention. 4 shows another example of the horizontal state display of the communication system for agricultural machinery according to the first embodiment of the present invention. 4 shows an example of a depth state display of the first embodiment of the communication system for agricultural machinery of the present invention; 4 shows an example of a flow chart in the control unit of the communication system for agricultural machinery according to the first embodiment of the present invention. 4 shows an example of a flow chart in the communication terminal of the first embodiment of the communication system for agricultural machinery of the present invention. 4 shows an example of a flow chart in the display device of the first embodiment of the communication system for agricultural machinery of the present invention. FIG. 10 shows an example of a flow chart in the communication terminal of the second embodiment of the communication system for agricultural machinery of the present invention; FIG. FIG. 10 shows an example of a flow chart in the display device of the second embodiment of the communication system for agricultural machinery of the present invention. FIG. FIG. 10 is a schematic plan view of a third embodiment of the communication system for agricultural implements of the present invention; FIG. 4 is a schematic plan view of a fourth embodiment of the communication system for agricultural machinery of the present invention;

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

(First embodiment)
FIG. 1 is a block diagram of a first embodiment of a communication system for agricultural machinery according to the present invention.

The communication system for agricultural machinery according to the first embodiment is a system applicable to the display device 11 equipped on the tractor 1 and includes a communication terminal 12 , a control section 21 , a sensor 22 and an actuator 23 . The display device 11 and the communication terminal 12 can be arranged on the tractor 1 side, and the control section 21 , the sensor 22 and the actuator 23 are provided on the agricultural work machine 2 side mounted on the tractor 1 .

The display device 11 is a display device mounted on the tractor 1 at a position where the driver can easily see it, and has a display screen such as liquid crystal, organic EL, and LED. The display device 11 has a configuration in which an application (application software) can be installed and the processing described later can be performed. The display device 11 can communicate with the communication terminal 12 through the first wireless communication R1. The display device 11 can acquire information from the control unit 21 and display the state of the agricultural work machine 2 . Furthermore, the display device 11 can display a screen for operating the actuator 23 of the agricultural work machine 2 . Applications for these are installed in the display device 11 . In addition, the display device 11 can employ a touch panel system for easy operation. When the touch panel is not used, the operation unit may be provided near the screen. In addition, the display device 11 can be applied to display the control contents of the tractor 1 .

The communication terminal 12 is capable of mutually converting between different types of communication methods, and has a configuration capable of performing processing to be described later. The communication terminal 12 can communicate with the display device 11 by the first wireless communication R1, and can communicate with the control unit 21 by the second wireless communication R2. The communication terminal 12 is capable of transmitting information received through the first wireless communication R1 through the second wireless communication R2, and transmits information received through the second wireless communication R2 through the first wireless communication R1. It is possible to The communication terminal 12 is a portable terminal having a wireless communication function, and has a display screen 12a such as liquid crystal, organic EL, or LED. Further, the communication terminal 12 can be equipped with a configuration capable of performing processing similar to that of the display device 11 described above by installing an application. In addition, the display screen 12a of the communication terminal 12 may employ a touch panel system for easy operation. Communication terminal 12 is preferably a general-purpose communication terminal. For example, it is a smart phone, a tablet computer, or the like. When the touch panel is not used, the operation unit may be provided near the screen.

Here, the first wireless communication R1 employs the first communication method, and the second wireless communication R2 employs the second communication method. Here, the first communication method and the second communication method are different communication methods, and communication cannot be performed unless the device is compatible with the method. Therefore, the communication terminal 12 has a function of being able to convert the same information from the first communication method to the second communication method, and is capable of converting from the second communication method to the first communication method. have a certain function.

For example, the case of Bluetooth, which is generally and widely used, will be described. Bluetooth is one of wireless communication standards, and it employs a plurality of communication methods within the same standard. Therefore, when using a communication method that is not implemented, there is a case where communication is not possible due to incompatibility. Up to Bluetooth 3.0, the communication method of BLE (Bluetooth Low Energy) is not adopted, and wireless communication cannot be performed by BLE with devices compatible up to Bluetooth 3.0. Here, Bluetooth before the adoption of BLE is called classic Bluetooth, is not compatible with BLE, and implements communication methods based on BR (Basic Rate) and EDR (Enhanced Data Rate). In the first embodiment, for example, the first communication scheme can use classic Bluetooth and the second communication scheme can use BLE.

The control unit 21 is capable of wireless communication with the communication terminal 12 through the second wireless communication R2, and controls transmission of information from the sensor 22 and information calculated based on the sensor 22 to the communication terminal 12 . Furthermore, the actuator 23 can also be controlled, and this control can be performed based on information from the sensor 22 and information input from the display device 11 or the communication terminal 12 . In addition, it may have a storage unit for storing data required for control as needed. The control unit 21 is composed of electronic devices and the like necessary for control and the like.

The sensor 22 is a sensor that is installed on the agricultural work machine 2 side as necessary. Various types of sensors can be applied to the sensor 22, such as an acceleration sensor, an angular velocity sensor, an inclination sensor, a geomagnetic sensor, a rotation sensor, a potentiometer, and a limit switch. Thereby, the state of the agricultural implement 2, the state of the actuator 23, and the like can be detected. The state of the agricultural work machine 2 includes the inclination of the agricultural work machine 2, the working depth, the state of the agricultural work machine 2 by the actuator 23, and the like.

The actuator 23 is an actuator that is installed on the side of the agricultural working machine 2 as necessary, and that is used to move a part of the agricultural working machine 2 . The actuator 23 is, for example, a cylinder such as a hydraulic cylinder or an electric hydraulic cylinder, or a motor. In particular, it is an actuator that moves the position of a working portion of the agricultural implement 2 that performs agricultural work, an actuator that operates the working portion, and the like. By controlling these, the workability of agricultural work can be improved.

FIG. 2 is a schematic plan view of the first embodiment of the communication system for agricultural machinery of the present invention. FIG. 3 is a rear view of an agricultural working machine applied in the first embodiment of the communication system for agricultural working machine of the present invention. 2 and 3 show an embodiment of a puddling machine 30 with a folding mechanism. In the following description, the traveling direction of the puddling machine 30 is the forward direction. The left-right direction in FIG. 2 is the horizontal direction, and the up-down direction in FIG. 2 is the front-rear direction. The horizontal direction in FIG. 3 is the horizontal direction, and the vertical direction in FIG. 3 is the vertical direction of the puddling machine 30 .

As shown in FIG. 2 , a central working section 35 of the puddling machine 30 is attached to the rear of the tractor 1 . Side working portions 35 ′ installed on both sides of the central working portion 35 are foldable with respect to the central working portion 35 . A display device 11 is provided near the front side of the driver's seat of the tractor 1 . Further, the communication terminal 12 can be arranged on the tractor 1 near the driver's seat, for example. Moreover, since the communication terminal 12 is not wired, it can be carried from the tractor 1 . The control unit 21 is installed in the central working unit 35 . Further, the sensor 22 and the actuator 23 are installed at suitable locations of the puddling machine 30 depending on the application.

Here, information from the display device 11 is sent to the communication terminal 12 via wireless communication (first wireless communication R1 shown in FIG. 1), the communication method is converted by the communication terminal 12, and further wireless communication is performed. It is sent to the control unit 21 via (the second wireless communication R2 shown in FIG. 1). On the other hand, the information from the control unit 21 is sent to the communication terminal 12 via wireless communication (second wireless communication R2), the communication method is converted by the communication terminal 12, and further wireless communication (first wireless communication R1 ) to the display device 11 .

FIG. 3 shows a specific shape of the puddling machine 30. As shown in FIG. The central working portion 35 is provided with a mast 31a as a mounting portion 31 and left and right hitches 31b, and the puddling work machine 30 is mounted on the tractor 1 through these. Power from the tractor 1 is input through an input shaft provided on the front side, and a plowing section equipped with puddling claws rotates inside the cover 32 and the first leveling body 33 behind it to grind the soil finely. The surface of the soil is flattened by the first leveling body 33 and the second leveling body 34 provided behind it. The puddling work is performed in this manner. Further, the control box 38 is provided on the side surface of the mast 31a, and the control section 21 is installed inside. As a result, wireless communication with the communication terminal 12 can be performed near the tractor 1 and at a high position. It should be noted that, for example, a sensor 22 such as a sensor that can detect inclination can be installed in the control box 38 . Also, the control box 38 may be installed on the cover 32 or other places on the frame where there is less vibration.

When the left and right electric hydraulic cylinders 36 expand and contract, they operate a rotating mechanism 37 to fold inward the side working portions 35' provided on the left and right end sides of the central working portion 35, respectively. , the full width of the puddling machine 30 can be shortened. The left and right extended ground leveling body drive devices 40 can rotate the left and right extended ground leveling bodies 41 around the rotation shafts 41a through the arms 42 and the wires 43 by rotating the internal motors. As a result, it is possible to select whether the extended ground leveling body 41 provided at both side ends of the second ground leveling body 34 is extended outward or folded inward. The second ground leveling body driving device 46 rotates the second ground leveling body 34 through the second ground leveling body link means 47 by rotating the internal motor, thereby bringing the second ground leveling body 34 into a soil pulling state in which it is fixed at the lower side. or the normal puddling state in which the rotation is not fixed can be selected. It should be noted that the second grader drive 46 can be provided within the control box 38 or adjacent to the control box 38 .

The electric hydraulic cylinder 36 , (the motor of) the extended ground leveling body driving device 40 , and (the motor of) the second ground leveling body driving device 46 can be applied as the actuator 23 .

FIG. 4 shows an example of a device search screen display in the first embodiment of the communication system for agricultural machinery of the present invention. As described above, the display device 11 and the communication terminal 12, and the communication terminal 12 and the control unit 21 perform wireless communication. At this time, a plurality of receivable radio waves are displayed on the display screen 12a of the communication terminal 12 as shown in FIG. Then, the operator can connect to the display device 11 and the control unit 21, which are devices to be connected, by performing an operation of selecting an appropriate target from among these. For example, in the case of Bluetooth, a list of Bluetooth compatible devices that can be paired is detected and displayed. In FIG. 4, since three types of "WRZ1001", "WRZ1002", and "WLZ1001" are displayed, the operator can select, for example, by touching the display portion of "WRZ1001".

FIG. 5 shows a display example of a working state on the display device of the communication system for agricultural machinery according to the first embodiment of the present invention.

The state of the puddling machine 30 which is the agricultural machine 2 can be displayed on the display screen 11 a of the display device 11 . Here, by displaying the state of the puddling machine 30 by arranging a plurality of blocks for each type of state, it can be applied even when the shape, size, and orientation of the display screen of the display device are different, and versatility can be improved. . Specifically, in the display screen 11a, two blocks of a horizontal state display 50 and a depth state display 60 are displayed along the horizontal direction, which is the longitudinal direction of the display screen 11a. Displaying a title or a frame in each block makes it easier to understand.

The horizontal state display 50 indicates the tilt state of the puddling machine 30 with respect to the horizontal. Above the horizontal state display 50, a title display 51 indicating the state of inclination with respect to the horizontal is displayed, and "horizontal" is displayed in FIG. In addition, there is a reference setting display 52 below the horizontal state display 50, and when this part is touched, the current tilt becomes the horizontal reference. A setting cancellation display 53 is displayed on the side of the reference setting display 52, and the current horizontal reference is canceled when this part is touched. Further, a frame display 54 is provided around the horizontal state display 50, and the range of blocks of the horizontal state display 50 is indicated in an easy-to-understand manner by this frame. In the frame display 54, a diagram display 56 is displayed on the upper side, and a state display 58 is displayed on the lower side.

The graphic display 56 displays the inclination state of the puddling machine 30 with respect to the horizontal in a diagram or a picture. Here, the figure corresponds to the state seen from the rear side of the puddling machine 30, and the puddling machine 30 can be tilted in conjunction with the actual inclination of the puddling machine 30. The diagram display 56 includes a tractor display 56 a corresponding to the tractor 1 and a puddling machine display 56 k corresponding to the puddling machine 30 . The puddling machine display 56k includes a central working part display 56b corresponding to the central working part 35, a side working part display (left) 56c corresponding to the left side working part 35', and a right side working part 35'. A side working unit display (right) 56d, an extended ground leveling body display (left) 56e corresponding to the left extended ground leveling body 41, and an extended ground leveling body display (right) 56f corresponding to the right extended ground leveling body 41 are displayed. Furthermore, a status display (left side) 56g is displayed above the extended ground leveling body display (left side) 56e, and a status display (right side) 56h is displayed above the extended ground leveling body display (right side) 56f. indicates whether the left and right extended ground leveling bodies 41 are open or closed. In FIG. 5, "left open" and "right open" indicate the open state. In order to make it easier for the operator to understand, the left and right correspond to the left and right when the front of the tractor 1 is viewed from the rear side. Further, the graphic display 56 has a horizontal line display 56j for easy understanding of the horizontal reference, and a left and right center line display 56i for easy understanding of the horizontal center.

The status display 58 can be displayed in an easy-to-understand manner by numerical display and scale display. In FIG. 5, a numerical value display (left side) 58a indicating the tilt angle to the lower left, a numerical display (right side) 58b indicating the tilt angle to the lower right, a scale display 58c indicating display by scale, and a character display indicating the reference position of the scale. (reference) 58d (for example, "reference"), numerical display (left side) 58a indicates that the inclination is to the lower left, character display (left side) 58e (for example, "lower left"), numerical display (right side) 58b to the lower right A character display (right side) 58f (for example, "lower right") is displayed to indicate that it is tilted to the right. Here, for example, the numerical display (left side) 58a and the numerical display (right side) 58b are displayed by integers, and the scale display 58c is obtained by increasing the downwardly inclined scale instead of the numerical value below the decimal point. , the display can be sensuously easy to understand. The character display (left side) 58e is displayed below the numerical display (left side) 58a, and the character display (right side) 58f is displayed below the numerical display (right side) 58b.

The depth state display 60 indicates the working depth state of the puddling machine 30 . Above the depth state display 60 is a title display 61 indicating the state of working depth, which is displayed as "Depth" in FIG. In addition, there is a reference setting display 62 below the depth state display 60, and the current depth is used as a reference when this place is touched. A setting cancellation display 63 is displayed on the side of the reference setting display 62, and the current depth reference is canceled by touching this place. Further, a frame display 64 is provided around the depth state display 60, and the range of blocks of the depth state display 60 is indicated in an easy-to-understand manner by this frame. In the frame display 64, a diagram display 66 is displayed on the left side, and a state display 68 is displayed on the right side.

The graphic display 66 displays the state of the working depth of the puddling machine 30 in the form of a diagram or a picture. Here, a vertical cross section in the front-rear direction of the puddling machine 30 is shown, and the display can be changed in conjunction with the actual working depth of the puddling machine 30 . The diagram display 66 includes a puddling machine display 66g corresponding to the puddling machine 30, a cover display 66a corresponding to the cover 32, a first ground leveling body display 66b corresponding to the first ground leveling body 33, and a second ground leveling body. 34, and a plowing section display 66d corresponding to the plowing section of the puddling machine 30 are displayed. Furthermore, in order to make it easier to understand the state of the depth of work, a field surface display 66e showing the lines of the field surface and a plowing surface display 66f showing the lines of the bottom surface of the plowing section are also shown.

The status display 68 can be displayed in an easy-to-understand manner by numerical display and scale display. In FIG. 5, numerical display (upper) 68a for values shallower than the reference, numerical display (lower) 68b for values deeper than the reference, scale display 68c indicating display by scale, and character display (reference) 68d indicating the reference position of the scale. (e.g., "standard"), character display (upper) 68e (e.g., "shallow") indicating that numerical display (upper) 68a is a numerical value on the shallow side, and numerical display (lower) 68b is a numerical value on the deep side. A character display (lower side) 68f (for example, "deep") indicating that the Here, for example, the numeric display (upper side) 68a and the numeric display (lower side) 68b are displayed in integers, and the scale display 68c displays the value below the decimal point by increasing the depth or depth of the scale instead of the numerical value. Therefore, it is possible to make the display intuitively understandable. The character display (upper) 68e is displayed on the right side near the numerical display (upper) 68a, and the character display (lower) 68f is displayed on the right side near the numerical display (lower) 68b.

FIG. 6 shows an example of a horizontal state display of the first embodiment of the communication system for agricultural machinery of the present invention.

In FIG. 6, in comparison with the horizontal state display 50 shown in FIG. It has not been. FIG. 5 shows a state in which the left and right side working units 35' and the extended ground leveling body 41 are opened, with a side working unit display (left side) 56c, a side working unit display (right side) 56d, and an extended ground leveling body display (left side). 56e and extended ground leveling body display (right side) 56f are both displayed. When the side work unit display (right side) 56d is touched in this state of FIG. Then, the control unit 21 controls the right electric hydraulic cylinder 36 to fold the right side working unit 35'. In FIG. 6, as this state after the change, the part A (the side working unit display (right side) 56d, the extended ground leveling body display (right side) 56f, and the status display by characters (right side) 56h) is not shown. Information that the right side working portion 35' has been folded is sent to the display device 11 by control of the control portion 21 or detection by the sensor 22 that detects that the side working portion 35' has been folded. can be reflected in the display based on

In addition to the above, the side operation unit display (left side) 56c can also perform the same control for the left side operation unit 35'. Furthermore, for the left and right extended ground body 41, the extended ground body display (left) 56e part or the state display (left) 56g part by characters, or the extended ground body display (right) 56f part or characters By touching the state display (right side) 56h, it is possible to control the target extension ground leveling body driving device 40 to control opening and closing, and to turn off these displays when closed. In this way, in the horizontal state display 50, it is also possible to perform display and operation in conjunction with each other. can be changed.

FIG. 7 shows another example of the horizontal state display of the first embodiment of the communication system for agricultural machinery of the present invention.

FIG. 7 shows a state in which the puddling machine display 56k is tilted to the lower right compared to the horizontal state display 50 shown in FIG. In FIG. 5, the puddling machine display 56k shows a horizontal state, and the horizontal direction of the puddling machine display 56k is parallel to the horizontal line display 56j. At this time, the numerical values of the numerical display (left side) 58a and the numerical value display (right side) 58b are both "0", and the scale display 58c also displays only one scale at the reference position. On the other hand, in FIG. 7, the puddling machine display 56k in the diagrammatic display 56 is tilted to the lower right. The degree of inclination can be displayed as an inclination corresponding to the actual degree of inclination of the puddling work machine 30 . At this time, "2" is displayed in the numerical display (right side) 58b in the state display 58, which indicates that the integer value of the inclination is 2°. Nothing is displayed on the numerical display (left side) 58a. Furthermore, the scale display 58c indicates the state after the decimal point, and the scale increases on the side inclined downward from the reference position which is the center of the left and right. In the example of FIG. 7, one scale of the scale display 58c is displayed every 0.2°, and four more scales are displayed on the right side. For this reason, FIG. 7 shows that it is tilted to the lower right within a range of 2.8° or more and less than 3.0°.

The degree of inclination can be measured by a sensor 22 (for example, an inclination sensor, an acceleration sensor, etc.) provided on the puddling machine 30 side in the control box 38 or the like. This information is sent from the control unit 21 to the display device 11 via the communication terminal 12 .

In this manner, in the horizontal state display 50, by actually tilting the display of the puddling machine display 56k in the diagrammatic display 56, it is intuitively displayed that it is tilted. Furthermore, the state display 58 can display the actual degree of inclination in an easy-to-understand manner by displaying numerical values and scales.

FIG. 8 shows an example of the depth state display of the first embodiment of the communication system for agricultural implements of the present invention.

FIG. 8 shows an example in which the working depth of the puddling machine display 66g is shallower than the depth state display 60 shown in FIG. In FIG. 5, the puddling work machine display 66g shows the state at the reference depth, the numerical values of the numerical display (upper) 68a and the numerical display (lower) 68b are both "0", and the scale display 68c Only one reference position scale is displayed. On the other hand, in FIG. 8, the position of the tillage surface display 66f in the diagrammatic display 66 is raised and approaches the paddy surface display 66e. At this time, the positions of the plowing section display 66d and the cover display 66a are also raised accordingly, and the first leveling body display 66b is rotated downward around the fulcrum on the cover display 66a side. This position can be displayed according to the degree of movement of the actual position of the puddling work machine 30 . Also, "2" is displayed in the numerical display (upper side) 68a in the state display 68, which indicates that the integer value of the front tilt is 2 degrees. Note that nothing is displayed in the numerical display (lower side) 68b. Furthermore, the scale display 68c indicates the state after the decimal point, and the scale increases on the side of the movement from the reference position of the vertical center. In the example of FIG. 8, the display of one scale of the scale display 68c is shown every 0.2°, and four more scales are displayed on the upper side. Therefore, in FIG. 8, the movement in the shallow direction is indicated by tilting forward in the range of 2.8° or more and less than 3.0°. This utilizes the property that the agricultural implement 2 attached to the tractor 1 normally tilts forward due to the structure of the connecting portion when it moves upward with respect to the tractor 1 . Assuming that the reference angle is 0°, the forward tilting angle of the agricultural implement 2 is shallow, and the rearward tilting angle is deep. This can indicate the degree of depth.

The degree of inclination can be measured by a sensor 22 (for example, an inclination sensor, an acceleration sensor, etc.) provided on the puddling machine 30 side in the control box 38 or the like. This information is sent from the control unit 21 to the display device 11 via the communication terminal 12 .

In this way, in the depth state display 60, the current state is displayed in an intuitively understandable manner by actually changing the depth of the puddling machine display 66g in the diagram display 66 and displaying it. Furthermore, the state display 68 can display the actual degree of depth in an easy-to-understand manner by displaying numerical values and scales.

5 to 8, the display screen 11a of the display device 11 is explained, but these may be displayed on the display screen 12a of the communication terminal 12 and have the same function. In this case, it can be applied by introducing an application for that purpose into the communication terminal 12, and the communication terminal 12 performs wireless communication with the control unit 21 (second wireless communication R2). When the longitudinal direction of the communication terminal 12 is the horizontal direction, the blocks of the horizontal state display 50 and the depth state display 60 can be displayed side by side in the same manner as the display screen 11a of the display device 11. can. On the other hand, when the longitudinal direction of the communication terminal 12 is the vertical direction, each block of the horizontal state display 50 and the depth state display 60 can be displayed side by side along the vertical direction. This is provided with a sensor in the communication terminal 12, and this sensor senses the direction, and the arrangement can be changed by the processing of the communication terminal 12. FIG. As a result, the size of the display does not become too small, and easy-to-see display is possible. Also, the same content can be displayed on the display screen 11a of the display device 11 and the display screen 12a of the communication terminal 12 at the same time.

FIG. 9 shows an example of a flow chart in the control section of the first embodiment of the communication system for agricultural machinery of the present invention. Here, processing of the control unit 21 on the side of the puddling machine 30, which is the agricultural machine 2, is shown.

When the power is turned on (S101), the connection standby state is entered (S102). Here, connection standby means waiting for connection by wireless communication, and is a state of transmitting radio waves for connection standby.

Next, it is determined whether or not a pairing request has been received (S103). If no pairing request has been received, the connection standby of S102 is continued, and if a pairing request has been received, pairing is completed (S104). ). Pairing is pairing with the communication terminal 12, and is performed by receiving a pairing request from the communication terminal 12 (S207 in FIG. 10 described later).

Next, it is determined whether or not the pairing cancellation has been received (S105). If the pairing cancellation has been received, the process returns to the connection standby of S102, and if the pairing cancellation has not been received, the process goes to S106. Here, a request for canceling the pairing is also sent from the communication terminal 12 .

In S106, it is determined whether or not a setting data rewrite signal has been received. The setting data rewrite signal is a signal sent via the communication terminal 12 by operating the display device 11 . For example, it is a signal based on the operation described in FIG.

If it is determined in S106 that the setting data rewrite signal has been received, the setting data is rewritten (S107) and output to the actuator (S108). That is, when the control unit 21 receives a signal (S216 in FIG. 10 to be described later) transmitted based on the operation on the display device 11, the control unit 21 controls the actuator 23 (for example, the electric hydraulic cylinder 36, etc.). to activate. If it is determined in S106 that the setting data rewrite signal has not been received, the process proceeds to S109.

In S109, it is determined whether or not the measurement data has been updated. The measurement data is, for example, data measured by the sensor 22 installed on the puddling machine 30 side, data calculated using these, data of control information of the control unit 21, and the like. When the measurement data is updated, the measurement data is rewritten (S110), and the rewritten data is output (S111). If the measurement data is not updated, the previous data that has not been rewritten is output (S111). The data output in S111 is performed to the communication terminal 12, and the communication terminal 12 determines whether or not data has been received from the control unit 21 (S217 in FIG. 10 to be described later). After data output in S111, the process returns to S105.

FIG. 10 shows an example of a flow chart in the communication terminal of the first embodiment of the communication system for agricultural machinery of the present invention. Here, processing of the communication terminal 12 arranged on the tractor 1 side is shown.

First, the communication terminal 12 starts an application that enables the processing (S201).

Next, the controller or display device is selected (S202). This is for selecting whether to perform pairing processing with the control unit 21 or to perform pairing processing with the display device 11 . The selection can be made by displaying a selection screen on the display screen 12a of the communication terminal 12 and having the operator touch the screen. A method of automatically selecting in order can also be adopted.

If it is selected to perform pairing processing with the control unit 21 in S202, first, a pairing cancellation is transmitted to the control unit 21 (S203). This is because when the control unit 21 has already performed pairing in the past, even if it is determined that the pairing has been canceled on the communication terminal 12 side, the pairing has not been canceled on the control unit 21 side. may have determined. In consideration of this case, the transmission of S203 is performed in order to ensure that the control unit 21 side determines that the pairing has been canceled. Then, when the control unit 21 receives the pairing cancellation signal data, it enters a connection waiting state (S105 and S102 in FIG. 9).

Next, the controller 21 is searched (S204). In this search, a device (radio waves of) that can be received by a communication method (second communication method) applicable to the control unit 21 is searched. In the above example, it is a device capable of communication by BLE.

Next, devices waiting for connection are displayed (S205). Here, the list of devices retrieved in S204 is displayed on the display screen 12a of the communication terminal 12. FIG. A display example is a display as shown in FIG.

Next, the controller 21 to be connected is selected (S206). For the selection here, the operator can select the device corresponding to the control unit 21 by touching the touch panel of the display screen 12a of the communication terminal 12 or the like.

Next, a pairing request is transmitted (S207). A pairing request is transmitted to the control unit 21 for the device selected in S206. Based on this, the control unit 21 determines whether or not a pairing request has been received (S103 in FIG. 9).

Next, it is determined whether the pairing has succeeded (S208). Here, it is determined whether or not the pairing with the control unit 21 has succeeded. If the pairing is successful, go to S214, otherwise go back to S202.

On the other hand, if the pairing process with the display device 11 is selected in S202, first, the display device 11 is searched (S209). In this search, a device (radio waves of) that can be received by a communication method (first communication method) applicable to the display device 11 is searched. In the above example, it is a device capable of communication by classic Bluetooth.

Next, devices waiting for connection are displayed (S210). Here, the list of devices retrieved in S209 is displayed on the display screen 12a of the communication terminal 12. FIG. A display example is a display as shown in FIG.

Next, the display device 11 to be connected is selected (S211). For the selection here, the operator can select a device corresponding to the display device 11 by touching the touch panel of the display screen 12a of the communication terminal 12 or the like.

Next, a pairing request is transmitted (S212). A pairing request is transmitted to the display device 11 for the device selected in S211. Based on this, the display device 11 determines whether or not a pairing request has been received (S303 in FIG. 11 to be described later).

Next, it is determined whether the pairing has succeeded (S213). Here, it is determined whether or not the pairing with the display device 11 has succeeded. If the pairing is successful, go to S214, otherwise go back to S202.

In S214, it is determined whether pairing with both the display device 11 and the control unit 21 has been completed. If the pairing has been completed, the process goes to S215, and if the pairing has not been completed, the process returns to S202. For example, if only the pairing with the control unit 21 is completed, the process returns to S202, and the pairing with the display device 11 can be completed next.

In S<b>215 , it is determined whether or not data has been received from the display device 11 . The determination here is based on whether or not the setting data output from the display device 11 (S307 in FIG. 11, which will be described later) has been received. If it is determined that the setting data has not been received, the process proceeds to S217, and if it is determined that the setting data has been received, the setting data is transmitted to the control unit 21 (S216). At this time, the data communication method (first communication method) used for communication between the communication terminal 12 and the display device 11 is changed to the data communication method (second communication method) used for communication between the communication terminal 12 and the control unit 21. communication method) and send. Based on the transmitted data, the control unit 21 determines whether or not the setting data has been received (S106 in FIG. 9).

Next, it is determined whether or not data has been received from the control unit 21 (S217). The determination here is based on whether or not the data output from the control unit 21 (S111 in FIG. 9) has been received. If it is determined that the data has not been received, the process proceeds to S218, and if it is determined that the data has been received, the data is transmitted to the display device 11 (S219). At this time, the data communication method (second communication method) used for communication between the communication terminal 12 and the control unit 21 is changed to the data communication method (first communication method) used for communication between the communication terminal 12 and the display device 11. communication method) and send. Based on the transmitted data, the display device 11 determines whether or not the data has been received (S308 in FIG. 11 to be described later). After S219, the process returns to S214.

In S218, it is determined whether or not data has been received from the control unit 21 within a certain period of time. If no data has been received from the control unit 21 within a certain period of time, it is determined that communication has been cut off, and the process returns to S202 to perform pairing again. In the state of S202, the communication interval can be reduced compared to the states of S215 and S217, and the power saving mode can be set.

FIG. 11 shows an example of a flow chart in the display device of the first embodiment of the communication system for agricultural machinery of the present invention. Here, processing of the display device 11 arranged on the tractor 1 side is shown.

The display device 11 starts an application that enables the processing (S301).

Then, it enters a state of waiting for connection (S302). Here, connection standby means waiting for connection by wireless communication, and is a state of transmitting radio waves for connection standby.

Next, it is determined whether or not a pairing request has been received (S303). If no pairing request has been received, the connection standby of S302 is continued, and if a pairing request has been received, pairing is completed (S304). ). Pairing is pairing with the communication terminal 12, and is performed by receiving a pairing request from the communication terminal 12 (S212 in FIG. 10).

Next, the work screen is displayed on the display screen 11a (S305). The display here is, for example, the working state display such as the horizontal state display 50 and the depth state display 60 shown in FIGS. Initially, a reference state as shown in FIG. 5 may be displayed.

Next, it is determined whether or not a setting input has been made (S306). The setting input here is a case where there is some kind of input to the display device 11, for example, an input for operation or setting by touching the touch panel of the display screen 11a. As described in FIGS. 5 and 6, touching a portion of the graphical representation 56 may also be used as an input for changing settings. If there is no setting input in S306, the process proceeds to S308, and if there is setting input, the input setting data is output (S307). The output here is output to the communication terminal 12 . Based on this, the communication terminal 12 determines whether or not data has been received from the display device 11 (S215 in FIG. 10).

Next, it is determined whether or not data has been received (S308). The data here is the data transmitted from the communication terminal 12 (S219 in FIG. 10). The data here is, for example, data measured by the sensor 22 installed on the puddling machine 30 (agricultural machine 2) side, data calculated using these, data of control information of the control unit 21, and the like. . If it is determined that data has not been received, the process proceeds to S309, and if it is determined that data has been received, the screen is updated (S310), and the process returns to S306. An example of updating the screen is to change the horizontal state display 50 and the depth state display 60 in FIG. 5 as shown in FIGS.

In S309, it is determined whether or not data has been received from the control unit 21 within a certain period of time. If no data has been received from the control unit 21 within a certain period of time, it is determined that communication has been cut off, and the process returns to S302 to perform pairing again. In the state of S302, the communication interval can be reduced compared to the states of S306 and S308, and the power saving mode can be set.

As described above, in the first embodiment, the communication terminal 12 can perform pairing operations with the control unit 21 and the display device 11, so that two pairings can be performed simultaneously in a short time.

(Second embodiment)
FIG. 12 shows an example of a flow chart in the communication terminal of the second embodiment of the communication system for agricultural machinery of the present invention. FIG. 13 shows an example of a flow chart in the display device of the second embodiment of the communication system for agricultural machinery of the present invention. In the second embodiment, the points different from the first embodiment will be mainly described, and the same descriptions will be omitted for parts that are not particularly described.

In the first embodiment, the communication terminal 12 selects the device of the control unit 21 and the device of the display device 11 and transmits a pairing request to each of them. On the other hand, in the second embodiment, the communication terminal 12 selects the device of the control unit 21 and transmits a pairing request, and the display device 11 selects the device of the communication terminal 12 and transmits the pairing request. This is the configuration to send. A flowchart will be described below.

The flow chart on the side of the control unit 21 in the second embodiment is basically the same as in FIG. Pairing in S103 and S104 is performed by receiving a pairing request from the communication terminal 12 (S408 in FIG. 12 to be described later). In S106 to S108, when the control unit 21 receives a signal (S413 in FIG. 12 to be described later) transmitted based on the operation on the display device 11, the control unit 21 controls the actuator 23 to operate. The data output in S111 is performed to the communication terminal 12, and the communication terminal 12 determines whether or not data has been received from the control unit 21 (S414 in FIG. 12 to be described later).

A flow chart of the communication terminal 12 in the second embodiment is shown in FIG.

First, the communication terminal 12 starts an application that enables the processing (S401).

Next, it is determined whether or not a pairing request has been received from the display device 11 (S402). When the pairing request is not received, the process goes to S403, and when the pairing request is received, the pairing with the display device 11 is completed (S410), and the process goes to S411. Pairing here is pairing with the display device 11 and is performed by receiving a pairing request (S505 in FIG. 13 described later) from the display device 11 .

In S403, it is determined whether or not to search for the control unit 21 (S403). Here, for example, a screen for confirming whether or not to execute this search is displayed on the display screen 12a of the communication terminal 12, and the determination can be made by having the operator touch the screen. If the search is to be executed, the process goes to S404, and if the search is not to be executed, the process returns to S402.

S404 to S409 are the same as S203 to S208 described with reference to FIG. 10, so description thereof will be omitted. If the pairing is successful in S409, the process goes to S411, and if not, the process returns to S402.

S411 to S416 are the same as S214 to S219 described with reference to FIG. 10, so description thereof will be omitted. Here, if the pairing is not successful in S411, the process returns to S402. If it is determined in S415 that data has not been received from the control unit 21 within the predetermined period of time, it is determined that the communication has been disconnected, and the process returns to S402. After S416, the process returns to S411.

A flow chart of the display device 11 in the second embodiment is shown in FIG.

The display device 11 starts an application that enables the processing (S501).

Next, the communication terminal 12 is searched (S502). In this search, a device (radio waves of) that can be received by adopting a communication method (first communication method) applicable to the display device 11 is searched. In the above example, it is a device capable of communication by classic Bluetooth.

Next, devices waiting for connection are displayed (S503). Here, the list of devices searched in S502 is displayed on the display screen 11a of the display device 11. FIG. A display example is a display according to FIG. 4 when the display screen 11a of the display device 11 is used.

Next, the communication terminal 12 to be connected is selected (S504). For the selection here, the operator can select a device corresponding to the communication terminal 12 by touching the touch panel of the display screen 11a of the display device 11 or the like.

Next, a pairing request is transmitted (S505). A pairing request is transmitted to the communication terminal 12 for the device selected in S504. Based on this, the communication terminal 12 determines whether or not the pairing request has been received (S402 in FIG. 12).

Next, it is determined whether the pairing has succeeded (S506). Here, it is determined whether or not the pairing with the communication terminal 12 has succeeded. If the pairing is successful, the process goes to S507 and the pairing is completed. If the pairing is not successful, the process returns to S502.

The following S508 to S513 are the same as S305 to S310 in FIG. 11, so description thereof will be omitted. If it is determined in S512 that data has not been received from the control unit 21 within a certain period of time, it is determined that the communication has been disconnected, and the process returns to S502. After S513, the process returns to S509.

Thus, in the second embodiment, since the communication terminal 12 performs the pairing operation with the control unit 21 and the display device 11 performs the pairing operation with the communication terminal 12, a complicated operation of selecting a pairing destination is performed. and each pairing can be done with a simple operation.

(Third Embodiment)
FIG. 14 is a schematic plan view of a third embodiment of the communication system for agricultural machinery of the present invention. In the third embodiment, points different from the first and second embodiments will be mainly described, and the same reference numerals will be given to the same portions, and the same descriptions will be omitted for portions that do not have any particular description. there is In this embodiment, an example of application to a ridge coating machine 100 that performs ridge coating work as the agricultural work machine 2 is shown. 14 indicates the front side (advance direction of the ridge coating work), the lower side indicates the rear side, and the horizontal direction in FIG. 14 indicates the horizontal (right and left) direction. Also, in FIG. 14, the tractor 1 is simplified.

The ridge coating machine 100 has a mounting portion 102 mounted on the rear portion of the tractor 1 . One end side of the intermediate frame 103 is connected to the mounting section 102 so as to be rotatable in the horizontal direction, and the other end side of the intermediate frame 103 is connected to the working section 105 with a rotating mechanism 104 . The working unit 105 has a tilling unit 107 on the front side and a disk unit 108 on the rear side. PTO power from the tractor 1 is sent to the working unit 105 via a transmission mechanism (not shown). The working section 105 is configured to feed the soil of the old ridge to the disk section 108 by rotating the claws 107a in the tilling section cover 107b of the tilling section 107, and shape the soil into a new ridge shape by rotating the disk section 108.

The ridge coating machine 100 is also provided with a first cylinder 111 and a second cylinder 112 . The expansion and contraction of the first cylinder 111 can adjust the offset amount (horizontal position relative to the tractor 1 ) of the working unit 105 . Further, by sufficiently retracting the first cylinder 111 from the forward working state shown in FIG. 14, the working portion 105 can be offset-moved to the center of the left and right, and can be brought into the retracted state. Further, by extending the second cylinder 112 from the retracted state, the working portion 105 is rotated to be in the back working state, thereby enabling the return work. At this time, the working part 105 protrudes to the left in the opposite direction, and the front and rear of the working part 105 are reversed. The first cylinder 111 and the second cylinder 112 correspond to the actuator 23 in FIG.

The control box 110 is attached to the mounting section 102, and can house the control section 21, the sensor 22, and the like shown in FIG. Also, the display device 11 and the communication terminal 12 of the tractor 1 are the same as in the first embodiment.

Here, examples of displaying the working state on the display device 11 in the ridge coating machine 100 include displaying the offset amount of the working unit 105 and displaying the depth of the plowing unit 107 with respect to the disk unit 108. be done. At this time, as shown in FIGS. 5 to 8, display by diagrams or pictures and display by numerical values and scales can be used. Further, when a diagram or picture corresponding to the ridge coating machine 100 is displayed on the display device 11, when the portion corresponding to the working unit 105 is touched, control is performed so that the forward working state, the retracted state, and the backward working state can be changed respectively. may These data exchanges are the same as in the first embodiment. Also, these pieces of information may be displayed on the display screen 12a of the communication terminal 12 in the same manner.

(Fourth embodiment)
FIG. 15 is a schematic plan view of a fourth embodiment of the communication system for agricultural machinery of the present invention. In the fourth embodiment, the points different from the first and second embodiments will be mainly described, and the same reference numerals will be given to the same parts, and the same description will be omitted for parts that do not have any particular description. there is In the embodiment here, an example of applying a fertilizing and seeding machine 200 that performs fertilization and seeding as the agricultural work machine 2 is shown. 15 indicates the front side (forward direction of work), the lower side indicates the rear side, and the left-right direction in FIG. 15 indicates the lateral (right-left) direction. In addition, in FIG. 15, the illustration of the tractor 1 and the fertilization seed applicator 200 is simplified.

The fertilizing and seeding machine 200 has a fertilizer hopper 201 and a seed hopper 211 behind it. The lower portion of the fertilizer hopper 201 has a rotary that rotates a plowing section (not shown) for plowing. The fertilizer hopper 201 contains fertilizer as a content, and as the fertilizer application motor 202 rotates, the fertilizer is discharged from the lower part of the fertilizer hopper 201 through the fertilizer application hose to the front side of the plowing section. Further, the seed hopper 211 contains seeds as contents, and as the seeding motor 212 rotates, the seeds pass through the seeding hose and are discharged to the rear side of the plowing section. In FIG. 15, two fertilizer hoppers 201 are arranged on the left and right, and six seed hoppers 211 are arranged on the left and right. At this time, the amount of fertilizer discharged from the fertilizer hopper 201 can be changed according to the rotation speed of the fertilizing motor 202, and the discharge amount of seeds from the seed hopper 211 can be changed according to the rotation speed of the seeding motor 212. can.

The control box 220 is attached, for example, between the fertilizer hopper 201 and the seed hopper 211, and can store the control unit 21, the sensor 22, and the like shown in FIG. Also, the display device 11 and the communication terminal 12 of the tractor 1 are the same as in the first embodiment.

Here, in the fertilizing and seeding machine 200, as an example of displaying the working state on the display device 11, there is an example of displaying the amount of discharged fertilizer or the amount of discharged seeds. At this time, as shown in FIGS. 5 to 8, display by diagrams or pictures and display by numerical values and scales can be used. Moreover, the level and tillage depth of the fertilizing and seeding machine 200 may be displayed in the same manner as in FIGS. When a diagram or picture corresponding to the fertilizing and seeding machine 200 is displayed on the display device 11, when the portion corresponding to the fertilizer hopper 201 or the fertilizing motor 202 is touched, the fertilizing motor 202 is controlled to turn on and off. may Similarly, when a portion corresponding to the seed hopper 211 or the seeding motor 212 is touched, the rotation of the seeding motor 212 may be turned on and off. Also, the display device 11 may be used to set the discharge amount of fertilizer and seeds. These data exchanges are the same as in the first embodiment. Also, these pieces of information may be displayed on the display screen 12a of the communication terminal 12 in the same manner.

As described above, in the first to fourth embodiments, the display device 11 mounted on the tractor 1 makes it possible to know and perform the state and operation of the agricultural implement 2 in an easy-to-understand manner. Furthermore, by using the communication terminal 12 to convert the communication method for the display device 11 equipped on the tractor 1, versatility can be enhanced. For example, even if the communication method adopted by the display device 11 is different from the communication method adopted by the control unit 21, communication between the display device 11 and the control unit 21 is possible. This can be widely applied even if the specifications of the display device 11 mounted on the tractor differ depending on the type of the tractor. In addition, since the communication terminal 12 can be applied by installing an application in a general portable device such as a smart phone or a tablet computer, the cost can be reduced. Further, since the display device 11 and the communication terminal 12, and the communication terminal 12 and the control unit 21 communicate wirelessly, there is no need for wiring connection or the like for communication. In particular, when the agricultural implement 2 is attached to or detached from the tractor 1, it is possible to save time and effort for connecting the communication wiring, and prevent damage to the wiring such as disconnection due to work mistakes. Further, by using BLE between the control unit 21 and the communication terminal 12, communication can be performed with low power.

Furthermore, the communication terminal 12 itself can be used to check the state of the agricultural work machine 2 and operate it. At this time, the worker can check the state of the farming machine 2 and operate it using the communication terminal 12 while looking at the farming machine 2 at the rear of the tractor 1 or getting off the tractor 1 . Furthermore, it is also possible to apply only the communication terminal 12 to a tractor that is not equipped with the display device 11 . For this reason, even when the tractor 1 equipped with the display device 11 is replaced with the tractor 1 equipped with the display device 11, the configuration of the above-described embodiment can be constructed by introducing the application to the communication terminal 12, which has conventionally been used only with the communication terminal 12. can do.

As described above, the embodiments of the present invention have been described, but the present invention is not limited to the above embodiments, and includes various modifications other than those described above. For example, it is not limited to those having all the configurations provided in the above-described embodiments. It is also possible to delete part of the configuration of a certain embodiment or replace it with another configuration.

For example, in the above-described embodiment, examples of the farming machine 2 include the plowing machine 30, the ridge coating machine 100, and the fertilizing and seeding machine 200. It is also possible to apply it to an agricultural work machine 2 attached to a tractor 1 .

Further, in the above embodiment, the first communication method between the communication terminal 12 and the display device 11 is classic Bluetooth, and the second communication method between the communication terminal 12 and the control unit 21 is BLE. A combination of methods can also be applied. For example, Wi-Fi or the like may be used, and the first communication method is Wi-Fi and the second communication method is BLE, and the communication terminal 12 performs conversion between them. Even in this case, the application of the communication terminal 12 can be changed only. In Wi-Fi and the like, methods other than pairing may be applied.

Although it has been described that the communication terminal 12 is arranged on the tractor 1, a configuration in which the communication terminal 12 is arranged on the farming machine 2 side is also applicable for the purpose of conversion.

1 Tractor 2 Agricultural Machine 11 Display Device 11a Display Screen 12 Communication Terminal 12a Display Screen 21 Control Unit 22 Sensor 23 Actuator R1 First Wireless Communication R2 Second Wireless Communication 30 Scraping Work Machine 36 Electric Hydraulic Cylinder 40 Extension Leveling Body Drive Device 46 Second leveling body driving device 50 Horizontal state display 60 Depth state display 100 Ridge coating machine 111 First cylinder 112 Second cylinder 200 Fertilizer seeding machine 202 Fertilizing motor 212 Seeding motor

Claims (8)

In a communication system for agricultural machinery that is applied to agricultural machinery that is attached to a tractor and performs agricultural work,
a communication terminal capable of wireless communication with a display device that can be arranged on the tractor; an actuator installed on the agricultural working machine; and a control unit,
Communication between the display device and the communication terminal uses a first communication method, and communication between the control unit and the communication terminal uses a second communication method,
When receiving data from the display device and transmitting the data to the control unit, the communication terminal converts the data from the first communication method to the second communication method,
A communication system for agricultural machinery, wherein the communication terminal is a portable terminal having a wireless communication function, and is equipped with a display screen. In the communication system for agricultural machinery according to claim 1,
The communication system for agricultural machinery, wherein the communication terminal converts data from the second communication system to the first communication system when receiving data from the control unit and transmitting the data to the display device. In the communication system for agricultural machinery according to claim 1 or claim 2,
A sensor installed on the agricultural machine,
The control unit is capable of acquiring information from the sensor,
The communication system for agricultural machinery, wherein the display device displays the state of the agricultural machinery based on information from the sensor. In the communication system for agricultural machinery according to any one of claims 1 to 3,
The display screen of the display device is composed of a touch panel, and the screen of the display device displays a diagram, picture, or text corresponding to the agricultural implement,
When a figure, picture, or character corresponding to the portion to be operated by the actuator on the display screen of the display device is touched, the information is sent to the control unit, and the control unit instructs the actuator to operate. A communication system for agricultural machinery characterized by: In the communication system for agricultural machinery according to claim 4,
A communication system for an agricultural machine, wherein when the actuator is operated, a diagram, picture, or character corresponding to a state after the actuator is operated is displayed on a screen of the display device. In a communication system for agricultural machinery that is applied to agricultural machinery that is attached to a tractor and performs agricultural work,
A communication terminal capable of wireless communication with a display device that can be arranged on the tractor, an actuator installed on the agricultural implement, and a control unit that controls the actuator and is capable of wireless communication with the communication terminal,
Communication between the display device and the communication terminal uses a first communication method, and communication between the control unit and the communication terminal uses a second communication method,
When receiving data from the display device and transmitting the data to the control unit, the communication terminal converts the data from the first communication method to the second communication method,
The display screen of the communication terminal is composed of a touch panel, and the screen of the communication terminal displays a diagram, picture, or text corresponding to the agricultural implement,
When the user touches a drawing, a picture, or a character on the display screen of the communication terminal corresponding to the part to be operated by the actuator, the information is sent to the control unit, and the control unit instructs the actuator to operate. A communication system for agricultural machinery characterized by: In the communication system for agricultural machinery according to claim 6,
A communication system for agricultural machinery, wherein when the actuator is actuated, a diagram, picture, or text corresponding to a state after the actuator is actuated is displayed on a screen of the communication terminal. In the communication system for agricultural machinery according to any one of claims 1 to 7,
A communication system for an agricultural machine, wherein the first communication method uses classic Bluetooth, and the second communication method uses BLE (Bluetooth Low Energy).

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