JP2020130144A - Communication system for agricultural implement - Google Patents

Abstract

To provide a communication system for an agricultural implement which can be applied for an agricultural implement to be attached to a tractor and communication versatility can be further enhanced.SOLUTION: There is provided a communication system for an agricultural implement which is applied for an agricultural implement 2 which is attached to a tractor 1 for performing an agricultural work, the communication system comprises: a communication terminal 12 capable of radio-communicating with a display unit capable of being arranged on the tractor 1; an actuator 23 installed on the agricultural implement 2; and a control part 21 for controlling the actuator 23 and capable of radio-communicating with the communication terminal 12. A first communication method is used for communication between the display unit 11 and the communication terminal 12, and a second communication method is used for communication between the control part 21 and the communication terminal 12. On the communication terminal 12, the communication method is converted from the first communication method into the second communication method when data from the display unit 11 is received and the data is sent to the control part 21.SELECTED DRAWING: Figure 1

Description

The present invention relates to a communication system for agricultural work machines, and more particularly to a communication system for agricultural work machines applied to agricultural work machines mounted on a tractor.

In the agricultural work machine attached to the tractor, the agricultural work machine is usually attached to the back side of the tractor to perform the agricultural work. Therefore, in order to visually check the state of the farm work machine, the worker needs to face the rear side and check the farm work machine behind the tractor. At this time, more accurate farm work can be performed by displaying the display on the operator's hand with some kind of display device and performing the state and operation of the farm work machine.

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

Patent Document 2 confirms the work machine ID of the work machine transmitted to the communication terminal by confirmation communication between the work machine and the communication terminal, and executes the execution associated with the work machine ID from a plurality of applications running on the communication terminal. A work machine operation program for selecting an application and causing the communication terminal to execute the execution application on the display screen of the communication terminal is described.

Japanese Unexamined Patent Publication No. 2011-142884 Japanese Unexamined Patent Publication No. 2017-209032

In Patent Document 1, the operation box side and the control unit side communicate by the same communication method. Therefore, when operating boxes using different communication methods are used, it is necessary to prepare a control unit corresponding to each communication method, which increases the cost and complicates management.

Patent Document 2 is based on the premise that communication between a work machine and a communication terminal can be performed by one communication method, and does not describe measures to be taken when different communication methods are used.

In view of the above problems, it is an object of the present invention to provide a communication system for agricultural work machines that can be applied to agricultural work machines to be mounted on a tractor and has higher versatility in communication.

In order to achieve the above object, one of the representative communication systems for agricultural work machines of the present invention is a display that can be arranged on the tractor in the communication system for agricultural work machines that is attached to the tractor and applied to the agricultural work machine for performing agricultural work. The display device and the communication terminal are provided with a communication terminal capable of wireless communication with the device, 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. The communication between the two uses the first communication method, the communication between the control unit and the communication terminal uses the second communication method, and the communication terminal receives the data from the display device and controls the control. When transmitting to the unit, it is characterized in that the first communication method is converted to the second communication method.

Further, in one of the communication systems for agricultural work machines of the present invention, when the communication terminal receives data from the control unit and transmits the data to the display device, the second communication method to the first communication method are used. It is characterized by converting to.
Further, one of the communication systems for agricultural work machines of the present invention includes a sensor installed in the agricultural work machine, the control unit can acquire the information of the sensor, and the display device uses the information of the sensor. Based on this, it is characterized in that the state of the agricultural work machine is displayed.

Further, in one of the communication systems for agricultural work machines of the present invention, the display screen of the display device is composed of a touch panel, and a figure, a picture or a character corresponding to the agricultural work machine is displayed on the screen of the display device. When a figure, a picture, or a character of a part corresponding to a part 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 activates the actuator. It is a feature.
Further, in one of the communication systems for agricultural work machines of the present invention, when the actuator is operated, a figure, a picture or a character corresponding to the state after the actuator is operated is displayed on the screen of the display device. It is characterized by that.

Further, in one of the communication systems for agricultural work machines of the present invention, the display screen of the communication terminal is composed of a touch panel, and a figure, a picture or a character corresponding to the agricultural work machine is displayed on the screen of the communication terminal. When the figure, picture, or character of the portion corresponding to the portion 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 activates the actuator. It is a feature.
Further, in one of the communication systems for agricultural work machines of the present invention, when the actuator is activated, a figure, a picture or a character corresponding to the state after the actuator is activated is displayed on the screen of the communication terminal. It is characterized by that.
Further, one of the communication systems for agricultural work machines of the present invention is characterized in that the first communication method uses the classic Bluetooth <registered trademark> and the second communication method uses BLE (Bluetooth Low Energy). To do.

According to the present invention, in a communication system for agricultural work machines, it can be applied to agricultural work machines mounted on a tractor, and the versatility of communication can be further enhanced.
Issues, configurations and effects other than those described above will be clarified by the description of the following embodiments.

It is a block diagram of the 1st Embodiment of the communication system for agricultural work machines of this invention. It is a plan schematic view of the 1st Embodiment of the communication system for agricultural work machines of this invention. It is a rear view of the agricultural work machine applied in 1st Embodiment of the communication system for agricultural work machine of this invention. An example of the screen display of the device search of the first embodiment of the communication system for agricultural work machines of the present invention is shown. An example of displaying the working state in the display device of the first embodiment of the communication system for agricultural work machines of the present invention is shown. An example of the horizontal state display of the first embodiment of the communication system for agricultural work machines of the present invention is shown. Another example of the horizontal state display of the 1st Embodiment of the communication system for agricultural work machines of this invention is shown. An example of the depth state display of the first embodiment of the communication system for agricultural work machines of the present invention is shown. An example of the flowchart in the control part of the 1st Embodiment of the communication system for agricultural work machines of this invention is shown. An example of the flowchart in the communication terminal of the 1st Embodiment of the communication system for agricultural work machines of this invention is shown. An example of a flowchart in the display device of the first embodiment of the communication system for agricultural work machines of the present invention is shown. An example of the flowchart in the communication terminal of the 2nd Embodiment of the communication system for agricultural work machines of this invention is shown. An example of the flowchart in the display device of the 2nd Embodiment of the communication system for agricultural work machines of this invention is shown. It is a plan schematic view of the 3rd Embodiment of the communication system for agricultural work machines of this invention. It is a plan schematic view of the 4th Embodiment of the communication system for agricultural work machines of this 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 the communication system for agricultural work machines of the present invention.

The communication system for agricultural work machines of the first embodiment is a system applicable to the display device 11 mounted on the tractor 1, and includes a communication terminal 12, a control unit 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 unit 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 includes a display screen made of a liquid crystal, an organic EL, an LED, or the like. The display device 11 has a configuration capable of introducing an application (application software) and performing processing described later. The display device 11 can communicate with the communication terminal 12 by 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. Further, 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. Further, in order to facilitate the operation, the display device 11 can adopt the touch panel method. When the touch panel is not used, the operation unit may be provided near the screen. As the display device 11, a device that displays the control content of the tractor 1 can be applied.

The communication terminal 12 has a configuration capable of converting different types of communication methods to each other and performing processing 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 can transmit the information received in the first wireless communication R1 in the second wireless communication R2, and transmits the information received in the second wireless communication R2 in the first wireless communication R1. It is possible to do. Further, the communication terminal 12 is a portable terminal having a wireless communication function, and includes a display screen 12a made of a liquid crystal, an organic EL, an LED, or the like. Further, the communication terminal 12 can be provided with a configuration capable of performing the same processing as the display device 11 described above by introducing an application. Further, in order to facilitate the operation, the display screen 12a of the communication terminal 12 can adopt the touch panel method. As the communication terminal 12, a general-purpose communication terminal can be preferably applied. For example, a smartphone or a tablet computer. When the touch panel is not used, the operation unit may be provided near the screen.

Here, the first wireless communication R1 adopts the first communication method, and the second wireless communication R2 adopts 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 supports the methods. Therefore, the communication terminal 12 has a function of converting the same information from the first communication method to the second communication method, and can also convert the second communication method to the first communication method. It has a certain function.

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

The control unit 21 enables wireless communication by the communication terminal 12 and the second wireless communication R2, and also controls to transmit the information of the sensor 22 and the information calculated based on the sensor 22 to the communication terminal 12. Further, the actuator 23 can also be controlled, and the control here can be performed based on the information from the sensor 22 or the information input by the display device 11 or the communication terminal 12. Further, it may have a storage unit for storing data necessary 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 installed on the farm work machine 2 side as needed. Various types of sensors can be applied to the sensor 22, and for example, an acceleration sensor, an angular velocity sensor, an inclination sensor, a geomagnetic sensor, a rotation sensor, a potentiometer, a limit switch, and the like can be applied. As a result, the state of the agricultural work machine 2 and the state of the actuator 23 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 installed on the farm work machine 2 side as needed, and is an actuator for moving a part of the farm work machine 2. Examples of the actuator 23 include cylinders such as hydraulic cylinders and electro-hydraulic cylinders, motors, and the like. In particular, there are actuators for moving the position of the work unit for agricultural work of the agricultural work machine 2, actuators for operating the work unit, and the like. By controlling these, the workability of agricultural work can be improved.

FIG. 2 is a schematic plan view of a first embodiment of the communication system for agricultural work machines of the present invention. FIG. 3 is a rear view of an agricultural work machine applied in the first embodiment of the communication system for agricultural work machines of the present invention. The agricultural work machine 2 of FIGS. 2 and 3 shows an embodiment using a puddling work machine 30 provided with a folding mechanism. Hereinafter, the traveling direction of the puddling work machine 30 will be described as the forward direction. The horizontal direction in FIG. 2 is the horizontal direction, and the vertical 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 work machine 30.

As shown in FIG. 2, the central working portion 35 of the puddling work machine 30 is mounted behind the tractor 1. The side work portions 35'installed on both sides of the central work portion 35 are foldable with respect to the central work 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 in a tractor 1 such as near the driver's seat. Further, since the communication terminal 12 is not connected by wire, it can be carried from the tractor 1. The control unit 21 is installed in the central work unit 35. Further, the sensor 22 and the actuator 23 are installed at a suitable place of the puddling work machine 30 according to the application.

Here, the 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 (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). ) Is sent to the display device 11.

FIG. 3 shows a specific shape of the substitute scraping work machine 30. The central working portion 35 is provided with a mast 31a, which is a mounting portion 31, and left and right hitches 31b, through which the substitute scratching work machine 30 is mounted on the tractor 1. The power from the tractor 1 is input via an input shaft provided on the front side, and a tillage portion having a shaving claw rotates inside the cover 32 and the first ground leveling body 33 behind the cover 32 to make the soil finer. Then, the surface of the soil is flattened by the first leveling body 33 and the second leveling body 34 provided behind the first leveling body 33. In this way, the punishment work is performed. Further, the control box 38 is provided on the side surface of the mast 31a, and the control unit 21 is installed inside. As a result, wireless communication with the communication terminal 12 can be performed at a position close to the tractor 1 and at a high position. For example, a sensor 22 such as a sensor capable of detecting tilt can be installed in the control box 38. Further, the control box 38 may be installed on the cover 32 or other place on the frame where there is little vibration.

The left and right electro-hydraulic cylinders 36 can expand and contract the cylinders to act on the rotating mechanism 37 to fold the side working portions 35'provided on the left and right end sides of the central working portion 35 inward. , The overall width of the puddling work machine 30 can be shortened. The left and right extension leveling body drive devices 40 can rotate the left and right extension leveling bodies 41 about the rotation shaft 41a via the arm 42 and the wire 43 by rotating the internal motor. This makes it possible to select whether to extend the extended ground leveling body 41 provided at both end portions of the second ground leveling body 34 outward or to fold it inward. The second ground leveling body driving device 46 rotates the second ground leveling body 34 via the second ground leveling body link means 47 by rotating the internal motor, and puts the second ground leveling body 34 in a soiled state fixed on the lower side. It is possible to select whether to use the normal scratching state in which the rotation is not fixed. The second leveling body driving device 46 can be provided in the control box 38 or adjacent to the control box 38.

The electro-hydraulic cylinder 36, the extension leveling body drive device 40 (motor), and the second leveling body drive device 46 (motor) can be applied as the actuator 23.

FIG. 4 shows an example of screen display of device search according to the first embodiment of the communication system for agricultural work machines of the present invention. As described above, the display device 11 and the communication terminal 12, the communication terminal 12 and the control unit 21 perform wireless communication, but there are cases where a plurality of devices adopting the same communication method exist and can be received. At this time, as shown in FIG. 4, a plurality of receivable radio waves are displayed on the display screen 12a of the communication terminal 12. Then, the operator can connect to the display device 11 and the control unit 21 which are the devices to be connected by performing an operation of selecting an appropriate target from 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 them by, for example, touching the display portion of "WRZ1001".

FIG. 5 shows an example of displaying a working state on the display device of the first embodiment of the communication system for agricultural work machines of the present invention.

The state of the substitute scraping work machine 30 which is the agricultural work machine 2 can be displayed on the display screen 11a of the display device 11. Here, by displaying the state of the puddling work 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 the versatility can be enhanced. .. Specifically, on the display screen 11a, an example in which two blocks of the horizontal state display 50 and the depth state display 60 are displayed along the horizontal direction which is the longitudinal direction of the display screen 11a is shown. In addition, displaying a title or frame in each block makes it easier to understand.

The horizontal state display 50 shows the tilted state of the puddling work machine 30 with respect to the horizontal. A title display 51 indicating an inclined state with respect to the horizontal is made on the upper part of the horizontal state display 50, and is displayed as "horizontal" in FIG. Further, there is a reference setting display 52 at the lower part of the horizontal state display 50, and when the reference setting display 52 is touched, the current inclination 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 by touching this part. Further, a frame display 54 is provided around the horizontal state display 50, and this frame clearly indicates the range of blocks of the horizontal state display 50. Further, in the frame display 54, the figure display 56 is displayed on the upper side and the state display 58 is displayed on the lower side thereof.

The figure display 56 displays the tilted state of the puddling work machine 30 with respect to the horizontal by a figure or a picture. Here, the one corresponding to the state seen from the rear side of the shaving work machine 30 is represented, and it can be tilted in conjunction with the actual inclination of the shaving work machine 30. The figure display 56 displays a tractor display 56a corresponding to the tractor 1 and a substitute scraping work machine display 56k corresponding to the substitute scratching work machine 30. The puddling work machine display 56k corresponds to the central work unit display 56b corresponding to the central work unit 35, the side work unit display (left side) 56c corresponding to the left side work unit 35', and the right side work unit 35'. The side working unit display (right side) 56d, the extended ground leveling body display (left side) 56e corresponding to the left extended ground leveling body 41, and the extended ground leveling body display (right side) 56f corresponding to the right extended ground leveling body 41 are displayed. Further, a textual status display (left side) 56 g is displayed at the upper part near the extended ground leveling body display (left side) 56e, and a textual status display (right side) 56h is displayed at the upper part near the extended ground leveling body display (right side) 56f. Indicates whether the left and right extension leveling bodies 41 are open or closed. In FIG. 5, both are shown as “left open” and “right open”. The left and right are aligned with the left and right when the front is viewed from the rear side of the tractor 1 in order to make it easier for the operator to understand. Further, the figure display 56 is provided with a horizontal line display 56j to make the horizontal reference easy to understand, and a left and right center line display 56i to make the left and right centers easy to understand.

The status display 58 can be displayed in an easy-to-understand manner by a numerical display and a scale display. In FIG. 5, a numerical display (left side) 58a showing the tilt angle to the lower left, a numerical display (right side) 58b showing the tilt angle to the lower right, a scale display 58c showing the display by the scale, and a character display showing the reference position of the scale. (Reference) 58d (for example, "reference"), numerical display (left side) 58a is a character display (left side) 58e (for example, "lower left") indicating that the inclination is to the lower left, and numerical display (right side) 58b is lower right. A character display (right side) 58f (for example, "at the lower right") indicating that the inclination to is displayed. 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 by increasing the scale of the value after the decimal point that is tilted downward instead of the numerical value. , The display can be intuitively understood. The character display (left side) 58e is displayed below the vicinity of the numerical display (left side) 58a, and the character display (right side) 58f is displayed below the vicinity of the numerical display (right side) 58b.

The depth state display 60 shows the state of the working depth of the puddling work machine 30. A title display 61 indicating the working depth state is made on the upper part of the depth state display 60, and is displayed as "depth" in FIG. Further, there is a reference setting display 62 at the lower part of the depth state display 60, and when a touch is made here, the current depth becomes the reference. 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 part. Further, a frame display 64 is provided around the depth state display 60, and the frame indicates the range of the block of the depth state display 60 in an easy-to-understand manner. Further, in the frame display 64, the figure display 66 is displayed on the left side and the state display 68 is displayed on the right side.

The figure display 66 displays the state of the working depth of the puddling work machine 30 with a figure or a picture. Here, a cross section cut by a vertical cross section in the front-rear direction of the puddling work machine 30 is represented, and the display can be changed in conjunction with the state of the actual working depth of the puddling work machine 30. The figure display 66 is a cover display 66a corresponding to the cover 32, a first leveling body display 66b corresponding to the first leveling body 33, and a second leveling body as the shaving work machine display 66g corresponding to the shaving work machine 30. The second leveling body display 66c corresponding to 34 and the cultivated portion display 66d corresponding to the cultivated portion of the puddling work machine 30 are displayed. Further, in order to make it easier to understand the state of the working depth, a rice field display 66e showing the line of the rice field surface and a tillage surface display 66f showing the line of the lower surface of the tillage portion are also shown.

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

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

In FIG. 6, as compared with the horizontal state display 50 shown in FIG. 5, the side work unit display (right side) 56d, the extended ground leveling body display (right side) 56f, and the character state display (right side) 56h are displayed in the part A. It has not been. FIG. 5 shows a state in which the left and right side working portions 35'and the extended ground leveling body 41 are opened, and the side working portion display (left side) 56c, the side working portion display (right side) 56d, and the extended ground leveling body display (left side). Both 56e and the extended ground leveling display (right side) 56f are displayed. When the side working unit display (right side) 56d is touched with respect to the state of FIG. 5, the information is sent to the control unit 21 via the communication terminal 12. Then, the control unit 21 controls the electro-hydraulic cylinder 36 on the right side to bring the side work unit 35'on the right side into a folded state. And in FIG. 6, as this state after the change, the part A (side work part display (right side) 56d, extended leveling body display (right side) 56f, state display by characters (right side) 56h) is not displayed. Folding the side work unit 35'on the right side means that information is sent to the display device 11 by the control of the control unit 21 or the detection of the sensor 22 that detects that the side work unit 35'is folded. Can be reflected in the display based on.

In addition to the above, the side work unit display (left side) 56c can also perform the same control with respect to the left side work unit 35'. Further, for the left and right extended leveling bodies 41, the extended ground leveling body display (left side) 56e part or the state display by characters (left side) 56g part, or the extended ground leveling body display (right side) 56f part or characters By touching the portion of the state display (right side) 56h, the target extension leveling body driving device 40 can be controlled to open and close, and when the state display (right side) 56h is closed, these displays can be turned off. In this way, in the horizontal state display 50, it is possible to perform the display and the operation in conjunction with each other, and the actuator 23 touches the part to be moved to perform the operation, and the display content is adjusted to the state of the agricultural work machine 2 changed by the actuator 23. Can be changed.

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

FIG. 7 shows a state in which the shaving work machine display 56k is tilted to the lower right as compared with the horizontal state display 50 shown in FIG. In FIG. 5, the shaving work machine display 56k shows a horizontal state, and the horizontal direction of the shaving work 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 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 substitute scraping work machine display 56k in the figure display 56 is displayed tilted to the lower right. The degree of inclination can be displayed with an inclination corresponding to the degree of inclination of the actual puddling work machine 30. At this time, "2" is displayed on the numerical display (right side) 58b in the state display 58, which indicates that the integer value of the slope is 2 °. Nothing is displayed on the numerical display (left side) 58a. Further, the scale display 58c shows the state after the decimal point, and the scale is increased on the side tilted downward from the reference position which is the center of the left and right. In the example of FIG. 7, the display of one scale of the scale display 58c is shown every 0.2 °, and four more scales are displayed on the right side. Therefore, in FIG. 7, it is shown that it is tilted to the lower right in 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 substitute scraping work machine 30 side such as in the control box 38. This information is sent from the control unit 21 to the display device 11 via the communication terminal 12.

As described above, in the horizontal state display 50, by actually tilting the display of the puddling work machine display 56k in the figure display 56, it is intuitively and easily displayed that the display is tilted. Further, in the state display 58, the actual degree of inclination can be displayed in an easy-to-understand manner by displaying the numerical value and the scale.

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

FIG. 8 shows an example in which the working depth of the shaving work machine display 66 g is shallower than that of the depth state display 60 shown in FIG. In FIG. 5, the shaving work machine display 66g shows the state at the reference depth, and the numerical values of the numerical display (upper side) 68a and the numerical value display (lower side) 68b are both “0”, and the scale display 68c is also Only one scale of the reference position is displayed. On the other hand, in FIG. 8, the position of the tillage surface display 66f in the figure display 66 is raised and approaches the field surface display 66e. At this time, the positions of the tillage portion display 66d and the cover display 66a are also raised accordingly, and the first leveling body display 66b is displayed by rotating downward about the fulcrum on the cover display 66a side. It should be noted that this position can be displayed according to the degree of movement of the actual position of the puddling work machine 30. Further, in the numerical display (upper side) 68a in the state display 68, "2" is displayed, which indicates that the integer value of the inclination on the front side is 2 °. Nothing is displayed on the numerical display (lower side) 68b. Further, the scale display 68c shows the state after the decimal point, and the scale is increased on the moving side from the reference position at the center of the top and bottom. 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, it is shown that it is moving in the shallow direction by being tilted forward in a range of 2.8 ° or more and less than 3.0 °. This is because the agricultural work machine 2 mounted on the tractor 1 normally uses the property of tilting forward due to the configuration of the connecting portion when it moves upward with respect to the tractor 1. Assuming that the reference angle is 0 °, the agricultural work machine 2 is shallower if it is tilted forward, and deeper if it is tilted backward. This makes it possible to 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 substitute scraping work machine 30 side such as in the control box 38. 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 intuitively and easily displayed by actually changing the depth of the shaving work machine display 66g in the figure display 66. Further, in the state display 68, the actual degree of depth can be displayed in an easy-to-understand manner by displaying the numerical value and the scale.

Although it has been described that the display is displayed on the display screen 11a of the display device 11 in FIGS. 5 to 8, these may be displayed on the display screen 12a of the communication terminal 12 to 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 (second wireless communication R2) with the control unit 21. Further, 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 along the horizontal direction, as in the display screen 11a of the display device 11. it can. On the other hand, when the longitudinal direction of the communication terminal 12 is the vertical direction, the blocks of the horizontal state display 50 and the depth state display 60 can be displayed side by side along the vertical direction. This is because a sensor is provided in the communication terminal 12, and the sensor senses the direction, and the arrangement can be changed by the processing of the communication terminal 12. As a result, the size of the display does not become too small and the display is easy to see. Further, the same contents can be simultaneously displayed on the display screen 11a of the display device 11 and the display screen 12a of the communication terminal 12.

FIG. 9 shows an example of a flowchart in the control unit of the first embodiment of the communication system for agricultural work machines of the present invention. Here, the processing of the control unit 21 on the side of the substitute scraping work machine 30 which is the agricultural work machine 2 is shown.

When the power is turned on (S101), the connection standby state is set (S102). The connection standby here means to wait for a connection by wireless communication, and is in a state of transmitting radio waves for connection standby.

Next, it is determined whether or not the pairing request has been received (S103), if the pairing request is not received, the connection standby of S102 is continued, and if the pairing request is received, the pairing is completed (S104). ). The pairing is pairing with the communication terminal 12, and is performed by receiving a pairing request (S207 in FIG. 10 described later) from the communication terminal 12.

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

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

When it is determined in S106 that the rewriting signal of the setting data has been received, the setting data is rewritten (S107) and output to the actuator (S108). That is, when the control unit 21 receives the signal transmitted based on the operation on the display device 11 (S216 in FIG. 10 described later), the control unit 21 controls the actuator 23 (for example, the electrohydraulic cylinder 36 or the like). To operate. If it is determined in S106 that the rewriting signal of the setting data is not received, the process goes 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 a sensor 22 installed on the side of the puddling work machine 30, 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 data before rewriting 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 described later). After the data output of S111, the process returns to S105.

FIG. 10 shows an example of a flowchart in the communication terminal of the first embodiment of the communication system for agricultural work machines of the present invention. Here, the 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 control unit or the display device is selected (S202). This selects whether to perform pairing processing with the control unit 21 or pairing processing with the display device 11. The selection can be made by displaying the selection screen on the display screen 12a of the communication terminal 12 and having the operator touch the screen. It is also possible to adopt a method of automatically selecting in order.

When the pairing process with the control unit 21 is selected in S202, first, the pairing release is transmitted to the control unit 21 (S203). This means that if the control unit 21 has already performed pairing in the past, even if the communication terminal 12 determines that the pairing has been released, the control unit 21 has not released the pairing. It may have been determined. Based on this case, S203 is transmitted in order to ensure that the control unit 21 side determines that the pairing has been released. Then, when the control unit 21 receives the signal data for releasing the pairing, it goes into the connection standby state (S105 and S102 in FIG. 9).

Next, the control unit 21 is searched (S204). The search here searches for a device (radio wave) that can be received by the communication method (second communication method) applicable to the control unit 21. In the above example, it is a device capable of communicating by BLE.

Next, the devices waiting to be connected are displayed (S205). Here, the list of devices searched in S204 is displayed on the display screen 12a of the communication terminal 12. As a display example, the display is as shown in FIG.

Next, the control unit 21 to be connected is selected (S206). As 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.

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 or not the pairing is successful (S208). Here, it is determined whether or not the pairing with the control unit 21 is successful. If the pairing is successful, it goes to S214, and if it is not successful, it returns to S202.

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

Next, the devices waiting to be connected are displayed (S210). Here, the list of devices searched in S209 is displayed on the display screen 12a of the communication terminal 12. As a display example, the display is as shown in FIG.

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

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 described later).

Next, it is determined whether or not the pairing is successful (S213). Here, it is determined whether or not the pairing with the display device 11 is successful. If the pairing is successful, it goes to S214, and if it is not successful, it returns to S202.

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

In S215, 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 described later) has been received. If it is determined that the setting data is not received, the process goes to S217, and if it is determined that the setting data is received, the setting data is transmitted to the control unit 21 (S216). At this time, from the data communication method (first communication method) used for communication between the communication terminal 12 and the display device 11, the data communication method (second communication method) used for communication between the communication terminal 12 and the control unit 21. Change to communication method) and send. The control unit 21 determines whether or not the setting data has been received based on the transmitted data (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 is not received, the process goes to S218, and if it is determined that the data is received, the data is transmitted to the display device 11 (S219). At this time, from the data communication method (second communication method) used for communication between the communication terminal 12 and the control unit 21, the data communication method (first communication method) used for communication between the communication terminal 12 and the display device 11. Change to communication method) and send. The display device 11 determines whether or not the data has been received based on the transmitted data (S308 in FIG. 11 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. Then, if the data is not received from the control unit 21 within a certain period of time, it is determined that the communication is cut off, the process returns to S202, and pairing is performed again. In the state of S202, the communication interval can be reduced and the power saving mode can be set as compared with the state of S215 or S217, so that wasteful power consumption of the communication terminal 12 can be suppressed.

FIG. 11 shows an example of a flowchart in the display device of the first embodiment of the communication system for agricultural work machines of the present invention. Here, the 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, the connection standby state is set (S302). The connection standby here means to wait for a connection by wireless communication, and is in a state of transmitting radio waves for connection standby.

Next, it is determined whether or not the pairing request has been received (S303), if the pairing request is not received, the connection standby of S302 is continued, and if the pairing request is received, the pairing is completed (S304). ). The pairing is pairing with the communication terminal 12, and is performed by receiving a pairing request (S212 in FIG. 10) from the communication terminal 12.

Next, the work screen is displayed on the display screen 11a (S305). The display here is, for example, a display of the working state by the horizontal state display 50, the depth state display 60, and the like shown in FIGS. 5 to 8. Initially, a reference state as shown in FIG. 5 may be displayed.

Next, it is determined whether or not the setting has been input (S306). The setting input here is a case where some input is made to the display device 11, and is, for example, an input for an operation or setting by touching the touch panel of the display screen 11a. As described with reference to FIGS. 5 and 6, it is also possible to touch a part of the figure display 56 and use it as an input for changing the setting. Then, if there is no setting input in S306, the process goes to S308, and if there is a 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 the 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 a sensor 22 installed on the side of the puddling work machine 30 (agricultural work machine 2), data calculated using these, data of control information of the control unit 21, and the like. .. Then, when it is determined that the data is not received, the process goes to S309, and when it is determined that the data has been received, the screen is updated (S310) and the process returns to S306. As an example of updating the screen, the horizontal state display 50 and the depth state display 60 of FIG. 5 may be changed as shown in FIGS. 7 and 8 based on the data based on the sensor 22.

In S309, it is determined whether or not data has been received from the control unit 21 within a certain period of time. Then, if the data is not received from the control unit 21 within a certain period of time, it is determined that the communication is cut off, the process returns to S302, and pairing is performed again. In the state of S302, the communication interval can be reduced and the power saving mode can be set as compared with the state of S306 or S308, so that wasteful power consumption of the display device 11 can be suppressed.

As described above, in the first embodiment, since the communication terminal 12 can perform the pairing operation with the control unit 21 and the display device 11, two pairings can be performed at the same time in a short time.

(Second Embodiment)
FIG. 12 shows an example of a flowchart in the communication terminal of the second embodiment of the communication system for agricultural work machines of the present invention. FIG. 13 shows an example of a flowchart in the display device of the second embodiment of the communication system for agricultural work machines of the present invention. In the second embodiment, the points different from those in the first embodiment are mainly described, and the same description is omitted unless otherwise specified.

In the first embodiment, the communication terminal 12 is configured to select the device of the control unit 21 and the device of the display device 11 and transmit a pairing request, respectively. On the other hand, in the second embodiment, the communication terminal 12 selects the device of the control unit 21 to transmit the pairing request, and the display device 11 selects the device of the communication terminal 12 to send the pairing request. It is a configuration to send. This will be described below with a flowchart.

The flowchart on the control unit 21 side in the second embodiment is basically the same as that in FIG. The pairing of S103 and S104 is performed by receiving a pairing request (S408 of FIG. 12 described later) from the communication terminal 12. In S106 to S108, when the control unit 21 receives a signal transmitted based on the operation on the display device 11 (S413 in FIG. 12 described later), the control unit 21 controls and operates the actuator 23. 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 described later).

The flowchart 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). If the pairing request is not received, the process goes to S403, and if the pairing request is received, the pairing with the display device 11 is completed (S410), and the process goes to S411. The 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 execute the search of 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 operator can touch the screen to make a determination. To execute the search, go to S404, and to not execute the search, return to S402.

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

Since S411 to S416 are the same as S214 to S219 described with reference to FIG. 10, the description thereof will be omitted. Here, if the pairing is not successful in S411, the process returns to S402. Further, in S415, if the data is not received from the control unit 21 within a certain time, it is determined that the communication is cut off and the process returns to S402. After S416, the process returns to S411.

The flowchart 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). The search here searches for a receivable device (radio wave) by adopting a communication method (first communication method) applicable to the display device 11. In the above example, it is a device capable of communicating by classic Bluetooth.

Next, the devices waiting to be connected are displayed (S503). Here, the list of devices searched in S502 is displayed on the display screen 11a of the display device 11. As a display example, it 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). As for the selection here, the operator can select the 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 a pairing request has been received (S402 in FIG. 12).

Next, it is determined whether or not the pairing is successful (S506). Here, it is determined whether or not the pairing with the communication terminal 12 is successful. If the pairing is successful, go 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, and thus the description thereof will be omitted. Here, in S512, if data is not received from the control unit 21 within a certain period of time, it is determined that the communication has been cut off, and the process returns to S502. After S513, the process returns to S509.

As described above, in the second embodiment, 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, so that a complicated operation for selecting the pairing destination is performed. Each pairing can be performed with a simple operation.

(Third Embodiment)
FIG. 14 is a schematic plan view of a third embodiment of the communication system for agricultural work machines of the present invention. In the third embodiment, the points different from those in the first and second embodiments are mainly described, the same parts are designated by the same reference numerals, and the same description is omitted unless otherwise specified. There is. In the embodiment here, an example of applying to the ridge coating machine 100 that performs the ridge coating work as the agricultural work machine 2 is shown. The upper part of FIG. 14 shows the front side (forward direction of the ridge coating work), the lower part shows the rear side, and the left-right direction of FIG. 14 shows the horizontal (left-right) direction. Further, in FIG. 14, the tractor 1 is simplified.

In the ridge coating machine 100, the mounting portion 102 is mounted on the rear portion of the tractor 1. One end side of the intermediate frame 103 is rotatably connected to the mounting portion 102 in the left-right direction, and the other end side of the intermediate frame 103 is connected to the working portion 105 with the rotating mechanism 104. The working portion 105 is provided with a tilling portion 107 on the front side and a disc portion 108 behind the tilling portion 107. The PTO power from the tractor 1 is sent to the working unit 105 via a transmission mechanism (not shown). The working portion 105 has a configuration in which the soil of the old ridge is sent to the disc portion 108 by the rotation of the claw 107a in the cultivated portion cover 107b in the tilling portion 107, and the soil of the old ridge is shaped into a new ridge shape by the rotation of the disc portion 108.

Further, the ridge coating machine 100 is provided with a first cylinder 111 and a second cylinder 112. By expanding and contracting the first cylinder 111, the offset amount (position in the lateral direction with respect to the tractor 1) of the working portion 105 can be adjusted. Further, by sufficiently contracting the first cylinder 111 from the forward work state of FIG. 14, the work unit 105 can be offset moved to the left and right center, and can be put into the retracted state. Further, by extending the second cylinder 112 from the retracted state, the working portion 105 is rotated to enable the return work in the back working state. At this time, the working portion 105 protrudes to the left side opposite to the left and right, and the front and back of the working portion 105 are reversed. The first cylinder 111 and the second cylinder 112 correspond to the actuator 23 of FIG.

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

Here, as an example of displaying the working state on the display device 11 in the ridge coating machine 100, an example of displaying the offset amount of the working portion 105 and an example of displaying the depth of the tilling portion 107 with respect to the disk portion 108 can be given. Be done. At this time, as shown in FIGS. 5 to 8, it is possible to display by figures or pictures and by numerical values and scales. Further, when displaying a figure or a picture corresponding to the ridge coating machine 100 on the display device 11, it is controlled so that the forward work state, the retracted state, and the back work state can be changed by touching the part corresponding to the work unit 105. You may. The exchange of these data is the same as in the first embodiment. Further, these pieces of information may be similarly displayed on the display screen 12a of the communication terminal 12.

(Fourth Embodiment)
FIG. 15 is a schematic plan view of a fourth embodiment of the communication system for agricultural work machines of the present invention. In the fourth embodiment, the points different from those in the first and second embodiments are mainly described, the same parts are designated by the same reference numerals, and the same description is omitted unless otherwise specified. There is. In the embodiment here, an example of applying the fertilizer sowing machine 200 for fertilizing and sowing as the agricultural work machine 2 is shown. The upper part of FIG. 15 shows the front side (forward direction of work), the lower part shows the rear side, and the left-right direction of FIG. 15 shows the lateral (left-right) direction. Note that FIG. 15 simplifies the illustration of the tractor 1 and the fertilizer sowing machine 200.

In the fertilizer seeding machine 200, a fertilizer hopper 201 and a seed hopper 211 are installed behind the fertilizer hopper 201. The lower part of the fertilizer hopper 201 has a rotary for cultivating by rotating a cultivating portion (not shown). Fertilizer is contained in the fertilizer hopper 201 as a content, and as the fertilizer motor 202 rotates, the fertilizer is discharged from the lower part of the fertilizer hopper 201 through the fertilizer hose to the front side of the tillage section. Further, the seed hopper 211 contains seeds as contents, and the seeds are discharged to the rear side of the tillage portion through the sowing hose as the sowing motor 212 rotates. In FIG. 15, two fertilizer hoppers 201 are installed on the left and right, and six seed hoppers 211 are installed side by side in the left-right direction. At this time, the amount of fertilizer discharged from the fertilizer hopper 201 can be changed according to the rotation speed of the fertilizer motor 202, and the amount of seeds discharged from the seed hopper 211 can be changed according to the number of rotations of the sowing motor 212. it can.

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

Here, as an example of displaying the working state on the display device 11 in the fertilizer seeding machine 200, there is an example of displaying the amount of fertilizer discharged and the amount of seed discharged. At this time, as shown in FIGS. 5 to 8, it is possible to display by figures or pictures and by numerical values and scales. Further, the horizontal and tillage depth of the fertilizer sowing machine 200 may be displayed in the same manner as in FIGS. 5, 7, and 8. Further, when displaying a figure or a picture corresponding to the fertilizer seeding machine 200 on the display device 11, when the portion corresponding to the fertilizer hopper 201 or the fertilizer motor 202 is touched, the rotation of the fertilizer motor 202 is controlled to be turned on / off. You may. Similarly, when the seed hopper 211 or the portion corresponding to the sowing motor 212 is touched, the rotation of the sowing motor 212 may be turned on and off. In addition, the amount of fertilizer and seeds discharged may be set by the display device 11. The exchange of these data is the same as in the first embodiment. Further, these pieces of information may be similarly displayed on the display screen 12a of the communication terminal 12.

As described above, in the first to fourth embodiments, the display device 11 provided on the tractor 1 makes it possible to easily understand and perform the state and operation of the agricultural work machine 2. Further, the versatility can be enhanced by converting the communication method of the display device 11 mounted on the tractor 1 by using the communication terminal 12. 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 or the like. Further, since the communication terminal 12 can be applied by introducing the application into a general portable device such as a smartphone or a tablet computer, the cost can be suppressed. Further, since the display device 11 and the communication terminal 12 and the communication terminal 12 and the control unit 21 are wireless communication, there is no need to connect wiring for communication or the like. In particular, when the agricultural work machine 2 is attached to and detached from the tractor 1, the labor for connecting the communication wiring can be saved, and the wiring damage such as disconnection due to a work error can be prevented. Further, by setting BLE between the control unit 21 and the communication terminal 12, communication can be performed with low power.

Further, the communication terminal 12 itself can confirm and operate the state of the agricultural work machine 2. At this time, the state of the agricultural work machine 2 can be confirmed and operated by the communication terminal 12 while the worker is looking at the agricultural work machine 2 at the rear of the tractor 1 or is getting off the tractor 1. Further, even a tractor not equipped with the display device 11 can be applied only to the communication terminal 12. Therefore, even when the state of being used only by the communication terminal 12 is changed to the tractor 1 equipped with the display device 11, if the application is introduced into the communication terminal 12, the configuration of the above-described embodiment is constructed. can do.

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

For example, in the above embodiment, as an example of the agricultural work machine 2, an example of a puddling work machine 30, a ridge coating machine 100, and a fertilizer seeding machine 200 is shown, but the present invention is, for example, other than this such as a rotary and a fertilizer applicator. It can also be applied to the agricultural work machine 2 mounted on the tractor 1.

Further, in the above embodiment, the first communication method between the communication terminal 12 and the display device 11 is described by classic Bluetooth, and the second communication method between the communication terminal 12 and the control unit 21 is described by BLE, but other communication. It can also be applied to a combination of methods. For example, Wi-Fi or the like may be used, the first communication method is Wi-Fi, the second communication method is BLE, and the communication terminal 12 converts them. Even in this case, it can be dealt with only by changing the application of the communication terminal 12. Further, in Wi-Fi and the like, a method other than pairing may be applied.

Although it has been described that the communication terminal 12 is arranged on the tractor 1, the communication terminal 12 can be applied to the configuration where the communication terminal 12 is arranged on the farm work machine 2 side for the purpose of performing conversion.

1 Tractor 2 Agricultural work 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 Scratching work machine 36 Electric hydraulic cylinder 40 Extension leveling body drive device 46 Second ground leveling body drive device 50 Horizontal state display 60 Depth state display 100 Ridge coating machine 111 First cylinder 112 Second cylinder 200 Fertilizer seeder 202 Fertilizer seeder 202 Seeding motor

Claims (8)

In the communication system for agricultural work machines, which is applied to agricultural work machines that are attached to tractors and perform 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 work machine, and a control unit that controls the actuator and is capable of wireless communication with the communication terminal are provided.
The communication between the display device and the communication terminal uses the first communication method, and the communication between the control unit and the communication terminal uses the second communication method.
A communication system for agricultural work machines, characterized in that, when the communication terminal receives data from the display device and transmits the data to the control unit, the communication terminal converts the first communication method into the second communication method. In the communication system for agricultural work machines according to claim 1,
A communication system for agricultural work machines, characterized in that, when the communication terminal receives data from the control unit and transmits the data to the display device, the communication terminal converts the second communication method into the first communication method. In the communication system for agricultural work machines according to claim 1 or 2.
Equipped with a sensor installed in the agricultural work machine
The control unit can acquire the information of the sensor, and can acquire the information of the sensor.
The display device is a communication system for agricultural work machines, which displays the state of the agricultural work machine based on the information of the sensor. In the communication system for agricultural work machines according to any one of claims 1 to 3.
The display screen of the display device is composed of a touch panel, and displays a figure, a picture, or a character corresponding to the agricultural work machine on the screen of the display device.
When a figure, a picture, or a character of a part corresponding to a part 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 activates the actuator. A characteristic communication system for agricultural work machines. In the communication system for agricultural work machines according to claim 4.
A communication system for agricultural work machines, characterized in that when the actuator is activated, a figure, a picture, or a character corresponding to the state after the actuator is activated is displayed on the screen of the display device. In the communication system for agricultural work machines according to any one of claims 1 to 5.
The display screen of the communication terminal is composed of a touch panel, and is displayed on the screen of the communication terminal including a figure, a picture, or a character corresponding to the agricultural work machine.
When a figure, a picture, or a character of a part corresponding to a part 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 activates the actuator. A characteristic communication system for agricultural work machines. In the communication system for agricultural work machines according to claim 6.
A communication system for agricultural work machines, characterized in that when the actuator is activated, a figure, a picture or a character corresponding to the state after the actuator is activated is displayed on the screen of the communication terminal. In the communication system for agricultural work machines according to any one of claims 1 to 7.
A communication system for agricultural work machines, characterized in that the first communication method uses classic Bluetooth and the second communication method uses BLE (Bluetooth Low Energy).

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