JP7214219B2 - Agricultural machine display system - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an agricultural working machine display system, and more particularly to an agricultural working machine display system capable of displaying the status of an agricultural working machine mounted on 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.

Patent Document 2 describes that in a harness for agricultural machinery and a method for connecting a harness for agricultural machinery, an operation unit can be connected to a CAN (Controller Area Network) communication line, and information from the CAN system is sent to the operation unit. It is

JP 2011-142884 A JP 2016-208874 A

In Patent Document 1, although the operation display screen corresponds to each model, it is not described to display changes in the state of the agricultural implement attached to the tractor.

The communication method based on the CAN communication line of Patent Document 2 conforms to the CAN communication protocol. When communicating with the tractor using other communication protocols, it is necessary to follow the communication protocol set for each tractor manufacturer and model. In this case, it is necessary to deal with different communication protocols, which increases costs and complicates management.

SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide an agricultural working machine display system capable of displaying the state of an agricultural working machine mounted on a tractor with greater versatility.

In order to achieve the above object, one of the representative display systems for agricultural machinery of the present invention is a display system for agricultural machinery that is applied to an agricultural machinery that is attached to a tractor and performs agricultural work, wherein a display that can be arranged on the tractor. a communication conversion device installed on the tractor and capable of communicating with the display device ; a sensor installed on the agricultural machine; and a sensor installed on the agricultural machine and capable of acquiring information from the sensor and the communication converter. a control unit communicable with a device, wherein communication between the control unit and the communication conversion device uses a first communication protocol, and communication between the communication conversion device and the display device uses a second communication protocol; When receiving data from the control unit and transmitting it to the display device, the communication conversion device converts the data from the first communication protocol to the second communication protocol, and the display It is characterized in that when data is received from the device and transmitted to the control unit, the second communication protocol is converted into the first communication protocol.

Further, in one of the display systems for agricultural machinery of the present invention, the display device displays the state of the agricultural machinery based on information from the sensor.
Further, in one of the agricultural working machine display systems of the present invention, the display device displays a plurality of statuses of the agricultural working machine arranged on a display screen for each status type.
Further, in one of the agricultural implement display systems of the present invention, the state of the agricultural implement includes at least one of a state of inclination with respect to the horizontal and a state of working depth.
Further, in one of the agricultural working machine display systems of the present invention, the status of the agricultural working machine is displayed on the screen of the display device by including a diagram, picture, or text corresponding to the agricultural working machine. .

Further, in one of the display systems for agricultural machinery of the present invention, the display screen of the display device is configured by a touch panel, the agricultural machinery includes an actuator, and corresponds to a portion operated by the actuator on the display screen of the display device. It is characterized in that, when a figure, picture or character of a part to be touched is touched, the information is sent to the control section, and the control section operates the actuator.
Further, in one of the display 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 display systems for agricultural machinery according to the present invention includes a communication terminal, the control unit is capable of wireless communication with the communication terminal according to the first communication protocol, and the communication terminal receives the information of the sensor. is characterized by displaying the state of the agricultural work machine based on.
Further, in one of the agricultural working machine display systems of the present invention, the communication terminal displays two states of the agricultural working machine side by side in the vertical direction on the display screen for each type of state.

Further, in one of the display systems for agricultural machinery of the present invention, wireless communication is performed between the control unit and the communication conversion device, and communication is performed by wired connection between the communication conversion device and the display device. characterized by
Further, in one of the agricultural machine display systems of the present invention, the first communication protocol uses BLE (Bluetooth (registered trademark) Low Energy), and the second communication protocol uses CAN (Controller Area Network). It is characterized by

Further, in one of the display systems for agricultural machinery of the present invention, the control unit and the communication conversion device are wired to communicate, and the communication conversion device and the display device are communicated wirelessly. characterized by
Further, in one of the display systems for agricultural implements of the present invention, the communication conversion device and the control unit are wiredly connected to a tractor-side controller provided in the tractor and capable of outputting at least vehicle speed information of the tractor. Characterized by
Further, in one of the agricultural machinery display systems of the present invention, the first communication protocol uses CAN (Controller Area Network), and the second communication protocol uses BLE (Bluetooth Low Energy). do.

Further, one of the display systems for agricultural machinery according to the present invention is a display system for agricultural machinery that is applied to an agricultural machinery that is attached to a tractor and performs agricultural work, in which a display device that can be arranged on the tractor, and the display device . A communication conversion device capable of communication and installed on the tractor, a communication terminal capable of communicating with the communication conversion device, a sensor installed on the agricultural machine, and acquiring information from the sensor installed on the agricultural machine. a control unit capable of communicating with the communication terminal, wherein communication between the control unit and the communication terminal uses a first communication protocol, and communication between the communication conversion device and the display device uses a second communication protocol, communication between the communication terminal and the communication conversion device uses a third communication protocol, and the communication terminal receives data from the control unit and converts the communication When transmitting to the device, the first communication protocol is converted into the third communication protocol, and when the communication conversion device receives data from the communication terminal and transmits it to the display device, the data is converted to the third communication protocol. 3 communication protocol to the second communication protocol.

Further, in one of the display systems for agricultural machinery according to the present invention, when the communication conversion device receives data from the display device and transmits the data to the communication terminal, the data is converted from the second communication protocol to the third communication protocol. wherein the communication terminal converts the data from the third communication protocol to the first communication protocol when receiving the data from the communication conversion device and transmitting the data to the control unit. .
Further, in one of the display systems for agricultural machinery of the present invention, the display device displays the state of the agricultural machinery based on information from the sensor.
Further, in one of the agricultural working machine display systems of the present invention, the communication terminal displays the status of the agricultural working machine based on information from the sensor.
Further, in one of the display systems for agricultural machinery according to the present invention, wireless communication is performed between the control unit and the communication terminal, and wired communication is performed between the communication terminal and the communication conversion device. A wired connection is established between the communication conversion device and the display device for communication.
Further, in one of the agricultural machinery display systems of the present invention, the first communication protocol uses a BLE (Bluetooth Low Energy) communication protocol, and the second communication protocol uses a CAN (Controller Area Network) communication protocol. and the third communication protocol is characterized by using a USB (Universal Serial Bus) or Lightning communication protocol.

ADVANTAGE OF THE INVENTION According to this invention, in the display system for agricultural machinery, the state of the agricultural machinery attached to a tractor can be displayed by making it more versatile.
Problems, configurations, and effects other than those described above will be clarified by the following description of the embodiments.

1 is a first block diagram of a first embodiment of a display system for agricultural implements of the present invention; FIG. 1 is a first schematic plan view of a first embodiment of a display system for agricultural implements of the present invention; FIG. 1 is a rear view of an agricultural working machine to which the first embodiment of the agricultural working machine display system of the present invention is applied; FIG. 4 shows an example of screen display for device search in the first embodiment of the display system for agricultural machinery of the present invention. 4 shows an example of a display of a working state on the display device of the first embodiment of the display system for agricultural machinery of the present invention. 1 shows an example of a horizontal state display of the first embodiment of the display system for agricultural machinery of the present invention. 4 shows another example of the horizontal state display of the first embodiment of the display system for agricultural implements of the present invention. 1 shows an example of a depth state display of the first embodiment of the display system for agricultural implements of the present invention; 4 shows an example of a flow chart in the control unit of the first embodiment of the display system for agricultural machinery of the present invention. 4 shows an example of a flow chart in the communication conversion device of the first embodiment of the display 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 display system for agricultural machinery of the present invention. FIG. 2 is a second block diagram of the first embodiment of the display system for agricultural implements of the present invention; FIG. 2 is a second schematic plan view of the first embodiment of the display system for agricultural implements of the present invention; 1 shows an example of a work state display on the communication terminal of the first embodiment of the display system for agricultural machinery of the present invention. FIG. 4 is a schematic plan view of a second embodiment of the display system for agricultural implements of the present invention; FIG. 3 is a schematic plan view of a third embodiment of the display system for agricultural implements of the present invention; FIG. 11 is a block diagram of a fourth embodiment of the display system for agricultural implements of the present invention; FIG. 4 is a schematic plan view of a fourth embodiment of the display system for agricultural implements of the present invention; FIG. 11 shows an example of a flow chart in the control unit of the fourth embodiment of the display system for agricultural machinery of the present invention. FIG. FIG. 11 shows an example of a flow chart in the communication conversion device of the fourth embodiment of the display system for agricultural machinery of the present invention. FIG. FIG. 10 shows an example of a flow chart in the display device of the fourth embodiment of the display system for agricultural machinery of the present invention. FIG. FIG. 11 is a block diagram of a fifth embodiment of the agricultural implement display system of the present invention; FIG. 5 is a schematic plan view of a fifth embodiment of the display system for agricultural implements of the present invention; FIG. 11 shows an example of a flow chart in a communication terminal of a fifth embodiment of the display system for agricultural machinery of the present invention. FIG. FIG. 11 shows an example of a flow chart in the communication conversion device of the fifth embodiment of the display system for agricultural machinery of the present invention. FIG.

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

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

The display system for agricultural machinery according to the first embodiment is a system applicable to the display device 11 mounted on the tractor 1 and includes a communication conversion device 12 , a control section 21 , a sensor 22 and an actuator 23 . The display device 11 and the communication conversion device 12 are provided on the tractor 1 side, and the controller 21 , the sensor 22 and the actuator 23 are provided on the agricultural work machine 2 side mounted on the tractor 1 . Note that the present invention can be applied even when the agricultural work machine 2 is not equipped with the actuator 23 .

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 is connected to a communication line 15, and the end of the communication line 15 opposite to the display device 11 serves as a connector 15a. 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, an operation unit is provided near the screen. In addition, the display device 11 can be applied to display the control contents of the tractor 1 .

The communication conversion device 12 is capable of mutually converting different types of communication, and has a configuration capable of performing processing to be described later. The communication conversion device 12 is capable of wireless communication with the control unit 21 and is wired-connected to the display device 11 . The end of the communication line 16 connected to the communication conversion device 12 on the opposite side (to the communication conversion device 12) is a connector 16a. Here, different protocols are adopted for the communication of the wireless communication and the communication of the communication line 16, and the communication conversion device 12 can convert the information according to the protocol of the wireless communication into the protocol of the communication line 16. It is possible to convert protocol-based information into a wireless communication protocol. Here, for example, BLE (Bluetooth Low Energy) can be applied as a protocol for wireless communication between the communication conversion device 12 and the control unit 21 . Also, the communication conversion device 12 can be activated by an external power supply (for example, DC 12V) of the tractor 1 .

By connecting the connector 15a of the communication line 15 connected to the display device 11 and the connector 16a of the communication line 16 connected to the communication conversion device 12, the display device 11 and the communication conversion device 12 are wired. be. For the communication protocol between them, for example, CAN (Controller Area Network) can be applied. Here, for the communication line 16 and the connector 16a, communication lines and connectors corresponding to protocols applicable to the display device 11 are prepared.

The control unit 21 is capable of wireless communication with the communication conversion device 12 and controls transmission of information from the sensor 22 and information calculated based on the sensor 22 to the communication conversion device 12 . Furthermore, it also controls the actuator 23 . Control here can be performed based on information input by the sensor 22 or the display device 11 . 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 installed on the farm machine 2 side, and various types of sensors are applied according to the needs of the farm machine. The sensor 22 is, for example, an acceleration sensor, an angular velocity sensor, an inclination sensor, a geomagnetic sensor, a rotation sensor, a potentiometer, a limit switch, or the like. As a result, it is possible to detect the inclination of the agricultural implement 2, the working depth, the state of the agricultural implement 2 by the actuator 23, and the like.

The actuator 23 is an actuator for moving a part of the agricultural implement 2 as needed. The actuator 23 is, for example, a cylinder such as a hydraulic cylinder or an electric hydraulic cylinder, or a motor. In particular, by using an actuator that moves the position of the working part of the agricultural machine 2 that performs agricultural work, it is possible to control this and improve the workability of the agricultural work.

FIG. 2 is a first schematic plan view of the first embodiment of the display system for agricultural implements of the present invention. FIG. 3 is a rear view of an agricultural working machine to which the first embodiment of the agricultural working machine display system of the present invention is applied. 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 and is connected to a communication conversion device 12 via communication lines 15 and 16 . By installing the communication conversion device 12 behind the driver's seat of the tractor 1, the communication distance with the control unit 21 can be shortened. 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 control unit 21 is sent to the communication conversion device 12 by wireless communication, the communication protocol is converted by the communication conversion device 12 and sent to the display device 11 via the communication lines 15 and 16 . Conversion here is, for example, conversion from BLE to CAN. BLE has the effect of enabling low-power communication in wireless communication, and CAN is widely used in tractors, so it has high versatility. On the other hand, the information from the display device 11 is sent to the communication conversion device 12 via the communication lines 15 and 16, the communication protocol system is converted by the communication conversion device 12, and sent to the control unit 21 by wireless communication. The conversion here is the reverse of the conversion described above. For example, conversion from CAN to BLE.

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 way. 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 conversion device 12 can be performed at a high position close to the tractor 1 . 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 . Note that 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 screen display for device search in the first embodiment of the display system for agricultural machinery of the present invention. As described above, the communication conversion device 12 and the control unit 21 perform wireless communication, but there are cases where a plurality of communication radio waves from devices based on the same communication protocol exist and can be received. At this time, a plurality of receivable radio waves are displayed on the display screen 11a of the display device 11 as shown in FIG. By performing an operation of selecting an appropriate target from among these, the operator can connect to the control unit 21, which is the device to be connected. 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 by touching the display portion of "WRZ1001", for example.

FIG. 5 shows a display example of a working state on the display device of the first embodiment of the display system for agricultural machinery 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, versatility can be enhanced by displaying the state of the puddling machine 30 by arranging blocks for each type of state. Specifically, on 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 work 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 56a corresponding to the tractor 1 and a puddling machine display 56k corresponding to the puddling machine 30. FIG. 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, "open left" and "open right" 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 figure 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., "reference"), the numerical display (upper) 68a is a character display (upper) 68e (e.g., "shallow") indicating that the numerical value is on the shallow side, and the numerical display (lower) 68b is tilted to the lower right. A character display (lower side) 68f (for example, "deep") indicating that there is a suffix is displayed. 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 shallower or deeper 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 display 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 level body display (right side) 56f are both displayed. When the side work unit display (right side) 56d is touched in the state shown in 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 leveling bodies 41, by touching the extended ground leveling body display (left side) 56e or the extended ground leveling body display (right side) 56f, the target extended ground leveling body driving device 40 can be controlled. It is possible to control the opening and closing, and turn off these displays when the door is 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 display system for agricultural implements 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 section 21 to the display device 11 via the communication conversion device 12 .

In this manner, in the horizontal state display 50, by actually tilting the display of the puddling work machine display 56k in the diagrammatic display 56, it is displayed in an intuitively comprehensible manner. 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 a depth state display of the first embodiment of the display 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) 68a in the state display 68, which indicates that the integer value of the front tilt is 2°. Note that nothing is displayed in the numerical display (lower side) 68b. Furthermore, the scale display 68c indicates the state after the decimal point. 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 shallower, and the rearward tilting angle is deeper than that. 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 section 21 to the display device 11 via the communication conversion device 12 .

In this way, in the depth state display 60, the current state is displayed in an intuitively comprehensible 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.

FIG. 9 shows an example of a flow chart in the control section of the first embodiment of the display 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 conversion device 12, and is performed by receiving a pairing request from the communication conversion device 12 (S205 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 conversion device 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 conversion device 12 by operating the display device 11 . For example, it is a signal based on the operation shown 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 (S209 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, 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 conversion device 12, and the communication conversion device 12 determines whether or not data has been received from the control unit 21 (S210 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 conversion device of the first embodiment of the display system for agricultural machinery of the present invention. Here, processing of the communication conversion device 12 arranged on the tractor 1 side is shown.

When the power is turned on (S201), it is determined whether or not a device waiting for connection is detected (S202). Here, if the device waiting for connection is the control unit 21 and is waiting for connection in S102 of FIG. 9, it can be detected. Then, when a device waiting for connection is detected in S202, the device waiting for connection is output to the display device 11 (S203). Based on this output, the device waiting for connection is displayed on the display device 11 (S303 in FIG. 11 to be described later).

Next, it is determined whether or not a pairing request has been received (S204). The determination here is based on whether or not a pairing request (S305 in FIG. 11 to be described later) transmitted from the display device 11 has been received. When the pairing request is not received, the process returns to S202, and when the pairing request is received, the pairing request is transmitted to the requested device (S205). This transmission of the pairing request is transmission to the control unit 21, and based on this, the control unit 21 determines whether or not the pairing request has been received (S103 in FIG. 9).

Next, it is determined whether the pairing has succeeded (S206). When pairing is not successful, the process returns to S202, and when it is determined that pairing is successful, pairing completion information is output (S207). The output here is sent to the display device 11, and the display device 11 determines whether or not the pairing is successful based on this (S306 in FIG. 11 to be described later).

Next, it is determined whether or not data has been received from the display device 11 (S208). This determination is made based on whether data output from the display device 11 (S309 in FIG. 11, which will be described later) has been received. If it is determined that the data has not been received, the process proceeds to S210, and if it is determined that the data has been received, the data is transmitted to the control section 21 (S209). At this time, the communication protocol of the data used in the communication between the communication converter 12 and the display device 11 is changed to the communication protocol of the data used in the communication between the communication converter 12 and the control unit 21 before transmission. Based on the transmitted data, the control unit 21 determines whether or not the data has been received (S106 in FIG. 9).

Next, it is determined whether or not data has been received from the control unit 21 (S210). 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 S211, and if it is determined that the data has been received, the data is transmitted to the display device 11 (S212). At this time, the data communication protocol used for communication between the communication conversion device 12 and the control unit 21 is changed to the data communication protocol used for communication between the communication conversion device 12 and the display device 11 before transmission. Based on the transmitted data, the display device 11 determines whether or not the data has been received (S310 in FIG. 11 to be described later). After S212, the process returns to S208.

In S211, it is determined whether or not data has been received within a certain period of time. Then, if the data has not been received within the fixed time, the process returns to S202. In the state of S202, the communication interval can be reduced compared to the states of S208 and S210, and the power saving mode can be set.

FIG. 11 shows an example of a flowchart for the display device of the first embodiment of the display 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).

Next, device search is started by the operator's operation or automatically (S302), and the devices waiting for connection are displayed on the display screen 11a of the display device 11 (S303). The information on the devices waiting for connection here is output from the communication converter 12 (S203 in FIG. 10). A display example here is as shown in FIG.

Next, a device to be connected is selected (S304). The selection here can be made by the operator, for example, by touching the touch panel of the display screen 11a.

Next, a pairing request is transmitted (S305). A pairing request is transmitted to the communication conversion device 12 for the device selected in S303. Based on this, the communication conversion device 12 determines whether or not the pairing request has been received (S204 in FIG. 10).

Next, it is determined whether the pairing has succeeded (S306). This determination can be made based on the pairing completion information from the communication conversion device 12 (S207 in FIG. 10). If it is determined that the pairing has not succeeded, the process returns to S302, and if it is determined that the pairing has succeeded, the work screen is displayed on the display screen 11a (S307). The display here is, for example, a working state display such as the horizontal state display 50 and the depth state display 60 shown in FIG. 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 (S308). The setting input here is a case where there is some kind of input to the display device 11, for example, a setting input 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 S308, the process goes to S310, and if there is setting input, the input setting data is output (S309). The output here is output to the communication conversion device 12 . Based on this, the communication conversion device 12 determines whether or not data has been received from the display device 11 (S208 in FIG. 10).

Next, it is determined whether or not data has been received (S310). The data here is the data transmitted from the communication conversion device 12 (S212 in FIG. 10). The data here is, for example, information based on the sensor 22 of the puddling machine 30 (agricultural machine 2). If it is determined that data has not been received, the process proceeds to S311, and if it is determined that data has been received, the screen is updated (S312), and the process returns to S308. 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 S311, it is determined whether or not data has been received within a certain period of time. If no data has been received within the predetermined time, it is determined that communication has been cut off, and the process returns to S302 to perform pairing again. In the state of S<b>302 , the communication interval can be reduced compared to the states of S<b>308 and S<b>310 , and the power saving mode can be set.

As described above, in the first embodiment, 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 conversion device 12 to convert the communication protocol for the display device 11 equipped on the tractor 1, versatility can be enhanced. Above all, the display device 11 and the communication conversion device 12 can communicate with the display device 11 by using CAN, which is widely used in tractors, regardless of the manufacturer or vehicle type. In addition, by using BLE between the control unit 21 and the communication conversion device 12, communication can be performed with low power, and as described later, versatility with general portable devices such as smartphones can increase In addition, by establishing wireless communication between the communication conversion device 12 and the control unit 21, when the agricultural implement 2 is attached to or detached from the tractor 1, there is no need to connect wiring for communication, etc., thus saving time and effort. It is possible to prevent damage to wiring such as disconnection due to work mistakes.

FIG. 12 is a second block diagram of the first embodiment of the display system for agricultural implements of the present invention. FIG. 13 is a second schematic plan view of the first embodiment of the display system for agricultural implements of the present invention.

The display system for agricultural machinery according to the first embodiment can be configured as a system applicable to the communication terminal 81 in addition to the display device 11 mounted on the tractor 1 shown in FIGS. 12 and 13 show this, and since the communication terminal 81 is a portable terminal, it can be arranged on the tractor 1. FIG. The control unit 21, the sensor 22, and the actuator 23 are the same as those shown in FIGS.

The communication terminal 81 is a portable terminal having a wireless communication function, and has a display screen 81a such as liquid crystal, organic EL, or LED. Further, the communication terminal 81 has a configuration capable of performing the same processing as the display device 11 described above by installing an application. In addition, the display screen 81a of the communication terminal 81 may employ a touch panel system for easy operation. Communication terminal 81 is preferably a general-purpose communication terminal. For example, it is a smart phone, a tablet computer, or the like.

Communication terminal 81 and control unit 21 are capable of wireless communication. The wireless communication between the communication terminal 81 and the controller 21 is based on the same protocol as the wireless communication between the communication converter 12 and the controller 21 described in FIGS. For example, BLE can be applied. Since the same type of communication is adopted, the data transmitted from the control unit 21 and the data received by the control unit 21 can be the same in the examples of FIGS. 1 and 2 and the examples of FIGS. .

FIG. 14 shows a display example of a working state on the communication terminal of the first embodiment of the display system for agricultural machinery of the present invention.

In FIG. 14, the display screen 81a of the communication terminal 81 displays two of each of the horizontal state display 50 and the depth state display 60 described in FIG. This is because the longitudinal direction of the display screen 81a is vertical, unlike in FIG. This can be displayed by processing within the communication terminal 81 . Also, when the longitudinal direction of the communication terminal 81 is set to the horizontal direction, the sensor in the communication terminal 81 senses this, and each block of the horizontal state display 50 and the depth state display 60 is turned to the horizontal direction as in FIG. They may be displayed side by side.

Next, processing of the control unit 21 and the communication terminal 81 in the configurations shown in FIGS. 12 to 14 will be described.

The control unit 21 shown in FIGS. 12 and 13 performs processing according to the flowchart shown in FIG. Here, data is exchanged with the communication terminal 81 instead of the communication conversion device 12, as compared with the configuration involving the communication conversion device 12 and the display device 11 described above. Other processing in the control unit 21 is basically the same. In the following, the difference between the communication terminal 81 and the configuration using the communication conversion device 12 and the display device 11 will be mainly described.

Pairing in S103 and S104 in FIG. 9 is pairing with the communication terminal 81, and is performed by receiving a pairing request from the communication terminal 81. FIG. The communication terminal 81 also sends a request to cancel the pairing in S105.

In determining whether or not a setting data rewrite signal has been received in S106, the setting data rewrite signal is a signal sent directly from communication terminal 81 by operating communication terminal 81. FIG. For example, it is a signal based on the case where the operation shown in FIG. 6 is performed on the communication terminal 81 . Based on this signal, the processing of S107 and S108 is performed.

The data output of S111 is performed to the communication terminal 81. FIG. For example, the communication terminal 81 changes the display in FIG. 14 to the display shown in FIGS.

The communication terminal 81 shown in FIGS. 12 and 13 performs processing according to the flowchart shown in FIG. Here, data is exchanged not with the communication conversion device 12 but with the control unit 21 as compared with the configuration involving the communication conversion device 12 and the display device 11 described above. Other processing in the communication terminal 81 is basically the same as in the display device 11 . In the following, differences from the case of the display device 11 will be mainly described.

In S301 of FIG. 11, the communication terminal 81 activates an application that enables the processing.

In S302 and S303, the information of the device waiting for connection is output from the control section 21 (S102 in FIG. 9) and displayed on the communication terminal 81. FIG. A display example is the same as in FIG. In S304, the operator selects a device to be connected by, for example, touching the touch panel of the display screen 81a.

The pairing request of S305 is transmitted to the control unit 21. FIG. Based on this, the control unit 21 determines whether or not a pairing request has been received (S103 in FIG. 9).

Whether or not the pairing in S306 has succeeded can be determined because the communication terminal 81 performs the pairing. The display of the work screen in S307 can be performed on the display screen 81a as shown in FIG. 14, for example. Initially, a reference state as shown in FIG. 14 may be displayed.

The determination of whether or not a setting input has been made in S308 is made when some kind of input is made to the communication terminal 81, for example, a setting input by touching the touch panel of the display screen 81a. It is also possible to display on the display screen 81a as shown in FIG. 14 and touch part of the graphical display 56 to make an input for changing the setting as shown in FIG. Also, the output of the setting data in S309 is output to the control unit 21 . Based on this, the control unit 21 determines whether or not a setting data rewrite signal has been received (S106 in FIG. 9).

The determination of whether or not data has been received in S310 is made based on the data transmitted from the control unit 21 (S111 in FIG. 9). The data here is, for example, information based on the sensor 22 of the puddling machine 30 (agricultural machine 2). The screen update in S312 is performed on the display screen 81a. For example, the horizontal state display 50 and the depth state display 60 in FIG. 14 can be changed in the same manner as in FIGS. 7 and 8 by data based on the sensor 22. The determination of S311 is performed in the communication terminal 81 in the same manner as in the display device 11 .

In this manner, the portable communication terminal 81 makes it possible to know and perform the state and operation of the agricultural work machine 2 in an easy-to-understand manner. Furthermore, in the case of the communication terminal 81 as well, by performing the same control by the control unit 21 as in the case of using the display device 11 and the communication conversion device 12, versatility can be enhanced without replacing parts. Furthermore, as shown in FIG. 14, by changing the arrangement of the blocks of the horizontal state display 50 and the depth state display 60, it is possible to make the display easier to see without reducing the size of the display. In addition, by using BLE between the control unit 21 and the communication terminal 81, communication can be performed with low power, and a communication protocol used in general portable devices such as smartphones is used. , can broaden the range of applications.

(Second embodiment)
FIG. 15 is a schematic plan view of a second embodiment of the display system for agricultural implements of the present invention. In the second embodiment, the points different from the first embodiment are mainly described, the same reference numerals are given to the same portions, and the same descriptions of the portions without particular description are omitted. 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. 15 shows the front side (advance direction of the ridge coating work), the lower side shows the rear side, and the horizontal direction in FIG. 15 shows the horizontal (left and right) direction. In addition, in FIG. 15, the illustration of 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 rotatably connected to the mounting portion 102 , and the other end side of the intermediate frame 103 is connected to a working portion 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 of FIG. 15, the working portion 105 can be offset-moved toward the center, 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 conversion device 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 in FIGS. 5 to 7, 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. Moreover, it is also possible to adopt a configuration applicable to the communication terminal 81 in the same manner as in FIGS.

(Third embodiment)
FIG. 16 is a schematic plan view of a third embodiment of the display system for agricultural implements of the present invention. In the third embodiment, the points different from the first embodiment are mainly described, the same reference numerals are given to the same portions, and the same descriptions of the portions without particular description are omitted. 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. 16 indicates the front side (forward direction of work), the lower side indicates the rear side, and the left-right direction in FIG. 16 indicates the lateral (right-left) direction. In addition, in FIG. 16, illustration of the tractor 1 and the fertilization seed application machine 200 is simplified.

The fertilizing and seeding machine 200 is provided with a fertilizing hopper 201 and a seeding hopper 211 behind it. At the bottom of the fertilizing hopper 201, there is a rotary that rotates a plowing section (not shown) for plowing. The fertilizing hopper 201 contains fertilizer as a content, and as the fertilizing motor 202 rotates, the fertilizer is discharged from the lower part of the fertilizing hopper 201 through the fertilizing hose to the front side of the plowing section. Further, the sowing hopper 211 contains seeds as contents, and as the sowing motor 212 rotates, the seeds pass through the seed hose and are discharged to the rear side of the plowing section. In FIG. 16, two fertilizing hoppers 201 are installed on the left and right, and six seeding hoppers 211 are installed on the left and right. At this time, the amount of fertilizer discharged from the fertilizing hopper 201 can be changed according to the rotation speed of the fertilizing motor 202, and the discharge amount of seeds from the seeding hopper 211 can be changed according to the rotation speed of the seeding motor 212. can.

The control box 220 is attached between the fertilizing hopper 201 and the seeding hopper 211, etc., and can store the control unit 21, the sensor 22, and the like shown in FIG. Also, the display device 11 and the communication conversion device 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 in FIGS. 5 to 7, display by diagrams or pictures and display by numerical values and scales can be used. Further, the level and tillage depth of the fertilizing and seeding machine 200 may be displayed in the same manner as in FIGS. Further, when a diagram or picture corresponding to the fertilizing and seeding machine 200 is displayed on the display device 11, when a portion corresponding to the fertilizing 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 seeding hopper 211 or the seeding motor 212 is touched, the rotation of the seeding motor 212 may be turned on and off. These data exchanges are the same as in the first embodiment. Also, it is possible to adopt a configuration that can be applied to the communication terminal 81 as shown in FIGS.

(Fourth embodiment)
FIG. 17 is a block diagram of a fourth embodiment of the agricultural implement display system of the present invention. In the fourth embodiment, differences from the first embodiment or the third embodiment will be mainly described, the same reference numerals will be given to the same parts, and the same explanations will be given to parts that are not specifically explained. omitted.

The display system for agricultural machinery according to the fourth embodiment is a system that can be applied to a display device 11' that can be arranged near the driver's seat of the tractor 1, and includes a communication conversion device 12', a control unit 21', a sensor 22, an actuator 23. A communication conversion device 12 ′ is provided on the tractor 1 side. Also, the controller 21 ′, the sensor 22 and the actuator 23 are provided on the side of the agricultural implement 2 mounted on the tractor 1 . Note that the present invention can be applied even when the agricultural work machine 2 is not equipped with the actuator 23 . The tractor 1 also has a tractor-side controller 13 .

The display device 11' is a display device that can be arranged on the tractor 1 at a position where the driver can easily see it, and has a display screen using liquid crystal, organic EL, LED, or the like. The display device 11' has a configuration in which an application (application software) can be installed to perform processing described later. Also, the display device 11' can wirelessly communicate with the communication conversion device 12'. The display device 11 ′ can acquire information from the control unit 21 ′ and display the state of the agricultural implement 2 . Furthermore, the display device 11 ′ can display a screen for operating the actuator 23 of the agricultural implement 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 a touch panel is not used, it is also possible to apply by providing an operation unit near the screen. The display on the display device 11' can be, for example, the display described with reference to FIGS.

The communication conversion device 12' is capable of mutually converting different types of communication, and has a configuration capable of performing processing to be described later. The communication conversion device 12 ′ is connected by wire to the controller 21 ′, and is also connected by wire to the tractor-side controller 13 . Furthermore, wireless communication with the display device 11' is possible. A communication line 18 connected to the communication conversion device 12' is branched in the middle, one end of which is a connector 18a, and the other end of which is a connector 18b. Here, different protocols are adopted for the communication of the communication line 18 and the wireless communication with the display device 11', and the communication conversion device 12' can convert the information according to the protocol of the communication line 18 into the wireless communication protocol. , the information according to the wireless communication protocol can be converted into the protocol of the communication line 18 . Here, for example, BLE (Bluetooth Low Energy) can be applied as a protocol for wireless communication with the display device 11'. Also, the communication conversion device 12' can be activated by an external power supply (for example, DC 12V) of the tractor 1.

A connector 18 a at one end of the branched end of the communication line 18 connected to the communication conversion device 12 ′ is connected to a connector 17 a of the communication line 17 connected to the tractor-side controller 13 . Further, the connector 18b at the other branched end of the communication line 18 is connected to the connector 25a of the communication line 25 connected to the control unit 21'. As a result, the communication conversion device 12', the controller 21' and the tractor-side controller 13 are connected by wire. For the communication protocol between them, for example, CAN (Controller Area Network) can be applied.

Information about the tractor 1 is output from the tractor-side controller 13 through the communication line 17 . The information output here includes information indicating the current state of the tractor, such as the current vehicle speed and steering angle of the tractor 1, and the position (height and angle, etc.). Information can also be input to the tractor-side controller 13 via the communication line 17 and used to control the tractor 1 .

The control unit 21' is capable of transmitting and receiving information to and from the communication conversion device 12' and the tractor-side controller 13 via the communication line 25, and also receives information from the sensor 22, information calculated based on the sensor 22, and the like. It controls transmission to the communication conversion device 12' and the tractor-side controller 13. FIG. Furthermore, it also controls the actuator 23 . The control here can be performed based on information from the sensor 22, information from the tractor-side controller 13, and information input from the display device 11'. 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. Note that the sensor 22 and the actuator 23 are the same as in the first embodiment.

FIG. 18 is a schematic plan view of a fourth embodiment of the display system for agricultural implements of the present invention. In the fourth embodiment, an example of applying a fertilizing and seeding machine 200 that performs fertilization and seeding as the agricultural work machine 2 is shown. About the structure of the fertilizing seed applicator 200 itself, it is the same as that of 3rd Embodiment fundamentally.

On the other hand, the control box 220' is attached between the fertilization hopper 201 and the seeding hopper 211, and can store the control unit 21', the sensor 22, and the like shown in FIG. The control unit 21' is connected to the tractor-side controller 13 and the communication conversion device 12' via a communication line 25 or the like. Specifically, the connector 25a of the communication line 25 is connected to the connector 18b of the communication line 18, and these connectors are arranged on the tractor 1 side in the vicinity of the fertilizing and seeding machine 200. As a result, when the fertilizing and seeding machine 200 is attached to and detached from the tractor 1, the connector 25a and the connector 18b can be easily attached and detached. A connector 17a of the communication line 17 is arranged on the tractor 1, and the connector 18a of the communication line 18 is detachable.

In this embodiment, the working status can be displayed on the display screen 11a' of the display device 11'. An example is displaying the amount of fertilizer or seed. At this time, as shown in FIGS. 5 to 8 and 14, display by diagrams or pictures, and display by numerical values and scales can be used. In addition, if the discharge amount per unit area is displayed as the discharge amount of fertilizer or seeds, it will be easier for the operator to understand. The discharge amount per unit area can be calculated by the controller 21' by using the speed of the fertilizing and seeding machine 200 and the discharge amount per hour. The speed of the fertilizing and seeding machine 200 can be measured by providing the fertilizing and seeding machine 200 with a sensor capable of measuring the speed as the sensor 22 . Alternatively, vehicle speed information can be obtained from the tractor-side controller 13 via the communication lines 17 , 18 and 25 . The discharge amount per hour can be measured by the number of rotations of the fertilization motor 202 and the seeding motor 212 . The fertilizer or seed discharge amount calculated by the control unit 21' is sent to the display device 11' via the communication line 25, the communication line 18, and the communication conversion device 12'.

Further, the level and tillage depth of the fertilizing and seeding machine 200 may be displayed according to FIGS. The data at this time is sent from the sensor 22 to the display device 11' via the control section 21', the communication line 25, the communication line 18, and the communication conversion device 12'.

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 fertilizing hopper 201 or the fertilizing motor 202 is touched, the fertilizing motor 202 is controlled to turn on and off. You may Similarly, when a portion corresponding to the seeding hopper 211 or the seeding motor 212 is touched, the rotation of the seeding motor 212 may be turned on and off. These data are sent from the display device 11 ′ to the controller 21 ′ via the communication conversion device 12 ′, the communication line 18 and the communication line 25 .

17 and 18, it is also possible to adopt a configuration in which the communication conversion device 12' is not used by simply attaching and detaching the connector. In this case, the connector 17a of the communication line 17 and the connector 25a of the communication line 25 are connected. Even in this state, the control section 21 ′ can obtain information from the tractor-side controller 13 . Here, the connector 25a of the communication line 25 and the connector 18a at one end of the branch of the communication line 18 have the same shape, and the connector 17a of the communication line 17 and the connector 18b at the other end of the branch of the communication line 18 have the same shape. shape connector.

FIG. 19 shows an example of a flow chart in the control section of the fourth embodiment of the display system for agricultural machinery of the present invention. Here, processing of the control unit 21' of the agricultural work machine 2 (fertilizer and seed applicator 200) is shown.

When the power is turned on (S401), it is determined whether or not a setting data rewrite signal has been received (S402). The setting data rewrite signal is a signal sent via the communication conversion device 12' by operating the display device 11'.

If it is determined in S402 that a setting data rewrite signal has been received, the setting data is rewritten (S403) and output to the actuator (S404). That is, when the control unit 21' receives a signal (S507 in FIG. 20 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 fertilization motor 202, the seeding motor 212 etc.) is controlled and operated. If it is determined in S402 that the setting data rewrite signal has not been received, the process proceeds to S405.

Next, in S405, 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 agricultural implement 2 side, data from the tractor-side controller 13 (for example, vehicle speed information), or data calculated using these. When the measurement data is updated, the measurement data is rewritten (S406), and the rewritten data is output (S407). If the measurement data is not updated, the previous data that has not been rewritten is output (S407). The data output in S407 is performed to the communication conversion device 12', and the communication conversion device 12' receives data from the control unit 21' (S508 in FIG. 20 to be described later). After data output in S407, the process returns to S402.

FIG. 20 shows an example of a flow chart in the communication conversion device of the fourth embodiment of the display system for agricultural machinery of the present invention. Here, processing of the communication conversion device 12' arranged on the tractor 1 side is shown.

When the power is turned on (S501), the connection standby state is entered (S502). 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 (S503). If no pairing request has been received, the connection standby of S502 is continued, and if a pairing request has been received, pairing is completed (S504). ). Pairing is pairing with the display device 11', and is performed by receiving a pairing request (S605 in FIG. 21 to be described later) transmitted from the display device 11'.

Next, it is determined whether or not the pairing cancellation has been received (S505). If the pairing cancellation has been received, the process returns to the connection standby of S502, and if the pairing cancellation has not been received, the process goes to S506. Here, a request to cancel the pairing is also sent from the display device 11'.

Next, it is determined whether or not data has been received from the display device 11' (S506). This determination is made based on whether data output from the display device 11' (S609 in FIG. 21, which will be described later) has been received. If it is determined that the data has not been received, the process proceeds to S508, and if it is determined that the data has been received, the data is transmitted to the control section 21' (S507). At this time, the communication protocol of the data used in the communication between the communication conversion device 12 and the display device 11' is changed to the communication protocol of the data used in the communication between the communication conversion device 12 and the control unit 21' before transmission. . Based on the transmitted data, the control unit 21' determines whether or not the data has been received (S402 in FIG. 19).

Next, data is received from the control unit 21' (S508), and the data is transmitted to the display device 11' (S509). At this time, the communication protocol of the data used in the communication between the communication conversion device 12' and the control unit 21' is changed to the communication protocol of the data used in the communication between the communication conversion device 12' and the display device 11'. Send. The display device 11' determines whether or not data has been received based on the transmitted data (S610 in FIG. 21, which will be described later). After S509, the process returns to S505.

FIG. 21 shows an example of a flowchart for the display device of the fourth embodiment of the display system for agricultural machinery of the present invention. Here, the processing of the display device 11' that can be arranged on the tractor 1 side is shown.

The display device 11' starts an application that enables the processing (S601).

Next, a device search is started by an operator's operation or automatically (S602), and devices waiting for connection are displayed on the display screen 11a' of the display device 11' (S603). The display example here is the same as in FIG.

Next, a device to be connected is selected (S604). The selection here can be made by the operator, for example, by touching the touch panel of the display screen 11a'.

Next, a pairing request is transmitted (S605). A pairing request is transmitted to the communication conversion device 12' for the device selected in S603. Based on this, the communication conversion device 12' determines whether or not a pairing request has been received (S503 in FIG. 20).

Next, it is determined whether the pairing has succeeded (S606). If it is determined that the pairing has not succeeded, the process returns to S602, and if it is determined that the pairing has succeeded, the work screen is displayed on the display screen 11a' (S607). The display here is, for example, a display corresponding to the display of the working state such as the horizontal state display 50 and the depth state display 60 shown in FIG.

Next, it is determined whether or not a setting input has been made (S608). The setting input here is a case where there is some kind of input on the display device 11', for example, a setting input by touching the touch panel of the display screen 11a'. If there is no setting input in S608, the process goes to S610, and if there is setting input, the input setting data is output (S609). The output here is output to the communication conversion device 12'. Based on this, the communication conversion device 12' determines whether or not data has been received from the display device 11' (S506 in FIG. 20).

Next, it is determined whether or not data has been received (S610). The data here is the data transmitted from the communication conversion device 12' (S509 in FIG. 20). For example, it is information based on the sensor 22 of the agricultural work machine 2 or the like. If it is determined that the data has not been received, the process proceeds to S611, and if it is determined that the data has been received, the screen is updated (S612), and the process returns to S608. Updating of the screen here is performed based on the received data.

In S611, it is determined whether or not data has been received within a certain period of time. Then, if the data has not been received within the fixed time, the process returns to S602. In the state of S602, the communication interval can be reduced compared to the states of S608 and S610, and the power saving mode can be set.

Thus, in the fourth embodiment, since the communication conversion device 12' can be added between the tractor controller 13 and the control unit 21', the display device 11' by wireless communication can be made more versatile. can build. Above all, by using CAN, which is widely used for tractors, it is possible to connect to the communication conversion device 12' and the control unit 21' even if the manufacturer and vehicle type are different. In addition, by using BLE between the communication conversion device 12' and the display device 11', communication can be performed with low power, and general portable devices such as smartphones can be used. can increase Further, by obtaining the information of the tractor 1 from the tractor-side controller 13, it is not necessary to provide the sensor 22 related to the information, so that the cost can be suppressed. Further, since the tractor-side controller 13 and the control section 21' are connected by wire, information for control can be reliably obtained.

(Fifth embodiment)
FIG. 22 is a block diagram of a fifth embodiment of the display system for agricultural implements of the present invention. In the fifth embodiment, points different from the first embodiment 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.

1 and 2 of the first embodiment, a communication terminal 81' is added to the tractor 1 side, and the communication conversion device 12'' is a communication conversion device corresponding to this. It has become.

The display device 11 is the same as in the first embodiment.

The communication conversion device 12 ″ is capable of mutually converting different types of communication, and has a configuration capable of performing processing to be described later. The communication conversion device 12 ″ is connected by wire to the communication terminal 81 ′, and is also connected by wire to the display device 11 . Here, communication with the communication terminal 81 ′ and communication with the display device 11 employ different communication protocols. The communication conversion device 12'' can convert the information according to the protocol used for communication with the communication terminal 81' into the protocol used for communication with the display device 11, and converts the information according to the protocol used for communication with the display device 11 to the communication terminal. 81' can be converted into a protocol used for communication. Also, the communication conversion device 12 can be activated by an external power supply (for example, DC 12V) of the tractor 1 .

By connecting the connector 15a at the tip of the communication line 15 connected to the display device 11 and the connector 16a at the tip of the communication line 16 connected to the communication conversion device 12'', the display device 11 and the communication conversion device 12' are connected. ' is wired. As these connectors, those conforming to the standards of the communication lines 15 and 16 can be used.

The communication terminal 81' is capable of mutually converting different types of communication, and has a configuration capable of performing processing described later. The communication terminal 81' is capable of wireless communication with the control unit 21 and is connected to the communication conversion device 12'' by wire. Here, different communication protocols are adopted for the communication with the control unit 21 and the communication with the communication conversion device 12''. The communication terminal 81' can convert information according to the protocol used for communication with the control unit 21 into the protocol used for communication with the communication conversion device 12'', and converts information according to the protocol used for communication with the communication conversion device 12''. can be converted into a protocol used in communication with the control unit 21 .

Furthermore, the communication terminal 81' can have functions similar to those of the communication terminal 81 of the first embodiment described with reference to FIGS. That is, the display screen 81a can be provided with a function of displaying the status of the agricultural work machine 2, an operation screen, etc., and enabling operation. Accordingly, the same function as the display device 11 can be achieved. A general-purpose communication terminal can preferably be applied to the communication terminal 81'. For example, it is a smart phone, a tablet computer, or the like.

By connecting the connector 19a at the tip of the communication line 19 connected to the communication conversion device 12'' to the connection part 81b provided in the communication terminal 81', the communication conversion device 12'' and the communication terminal 81' are wired. Connected. Those connectors and connection parts that meet the standards of the communication line 19 can be used.

The control unit 21 is similar to the control unit 21 of the first embodiment, but differs from FIGS. 1 and 2 in that wireless communication is performed with the communication terminal 81' here. Also, the sensor 22 and the actuator 23 are the same as in the first embodiment.

Here, a communication protocol applied in communication between the control unit 21, the communication terminal 81', the communication conversion device 12'', and the display device 11 will be described. Communication between the control unit 21 and the communication terminal 81' uses the first communication protocol P1. Communication between the communication conversion device 12'' and the display device 11 uses the second communication protocol P2. Communication between the communication terminal 81' and the communication converter 12'' uses the third communication protocol P3. Here, the first communication protocol P1, the second communication protocol P2, and the third communication protocol P3 are protocols of different types. The communication terminal 81' is capable of converting the first communication protocol P1 to the third communication protocol P3 or the third communication protocol P3 to the first communication protocol P1. The communication conversion device 12'' is capable of converting the third communication protocol P3 into the second communication protocol P2 or the second communication protocol P2 into the third communication protocol P3.

The BLE communication protocol, for example, can be applied to the first communication protocol P1. The CAN communication protocol, for example, can be applied to the second communication protocol P2. In this case, the communication lines 15 and 16 are CAN standard communication lines. For the third communication protocol P3, for example, a USB (Universal Serial Bus) communication protocol can be applied. In this case, the communication line 19 and the connector 19a are USB standard communication lines and connectors. In addition, the third communication protocol P3 may apply the Lightning communication protocol. In this case, the communication line 19 and the connector 19a are the lightning standard communication line and connector.

FIG. 23 is a schematic plan view of a fifth embodiment of the display system for agricultural implements of the present invention. The farm working machine 2 of FIG. 23 is a puddling machine 30 having a folding mechanism. The left-right direction in FIG. 23 is the horizontal direction, and the up-down direction in FIG. 23 is the front-rear direction. The structure of the puddling machine 30 itself is the same as that of the first embodiment.

As shown in FIG. 23 , the 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 and is connected to a communication conversion device 12 ″ via communication lines 15 and 16 . Furthermore, the communication converter 12 ″ is connected to the communication terminal 81 ′ via the communication line 19 . 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 (data) from the control unit 21 is sent to the communication terminal 81' by wireless communication, the communication protocol is converted by the communication terminal 81', and sent to the communication conversion device 12'' via the communication line 19. . Further, the transmitted information is converted in communication protocol by the communication conversion device 12 ″ and sent to the display device 11 via the communication lines 15 and 16 . On the other hand, the information from the display device 11 is sent to the communication conversion device 12'' via the communication lines 15 and 16, the communication protocol is converted by the communication conversion device 12'', and the information is transmitted via the communication line 19 to the communication terminal 81. '. Further, the transmitted information is converted in communication protocol by the communication terminal 81' and sent to the control unit 21 by wireless communication.

Next, processing of the control unit 21, the communication terminal 81', the communication conversion device 12'', and the display device 11 in the fifth embodiment will be described.

In the control unit 21 of the fifth embodiment, processing is performed according to the flowchart of FIG. 9 described above. Here, the difference is that data is exchanged with the communication terminal 81' instead of with the communication conversion device 12 described above with reference to FIG. Other processing in the control unit 21 is basically the same. The following description will focus on points that differ from the description of FIG. 9 of the first embodiment described above.

Pairing in S103 and S104 in FIG. 9 is pairing with the communication terminal 81', and is performed by receiving a pairing request (S705 in FIG. 24 described later) from the communication terminal 81'. A request for canceling the pairing in S105 is also sent from the communication terminal 81'.

In the determination of whether or not a setting data rewrite signal has been received in S106, the setting data rewrite signal is a signal sent from the communication terminal 81'. When the control unit 21 receives a signal (S709 in FIG. 24 to be described later) transmitted from the communication terminal 81′ based on the operation on the display device 11, the control unit 21 operates the actuator 23 (for example, the electric hydraulic cylinder 36, etc.) is controlled and operated.

The data output in S111 is performed to the communication terminal 81', and the communication terminal 81' determines whether or not data has been received from the control unit 21 (S710 in FIG. 24 to be described later).

FIG. 24 shows an example of a flow chart in the communication terminal of the fifth embodiment of the display system for agricultural machinery of the present invention. In the communication terminal 81' of the fifth embodiment, processing is performed according to the flowchart of FIG.

When the power is turned on (S701), it is determined whether or not a device waiting for connection is detected (S702). Here, if the device waiting for connection is the control unit 21 and is waiting for connection in S102 of FIG. 9, it can be detected. If a device waiting for connection is detected in S702, the device waiting for connection is output to the communication converter 12'' (S703). Based on this output, it is determined whether or not the communication conversion device 12'' has detected a device waiting for connection (S802 in FIG. 25, which will be described later). Note that if a device waiting for connection is not detected, the process remains as in S702.

Next, it is determined whether or not a pairing request has been received (S704). The determination here is based on whether or not a pairing request (S805 in FIG. 25 described later) transmitted from the communication conversion device 12'' has been received. If the pairing request is not received, the process returns to S702, and if the pairing request is received, the pairing request is transmitted to the requested device (S705). This transmission of the pairing request is transmission to the control unit 21, and based on this, the control unit 21 determines whether or not the pairing request has been received (S103 in FIG. 9).

Next, it is determined whether the pairing has succeeded (S706). When the pairing is not successful, the process returns to S702, and when it is determined that the pairing is successful, the pairing completion information is output (S707). The output here is sent to the communication conversion device 12'', and the communication conversion device 12'' determines based on this whether the pairing has succeeded (S806 in FIG. 25 to be described later).

Next, it is determined whether or not data has been received from the communication conversion device 12'' (S708). This determination is made based on whether data output from the communication conversion device 12'' (S809 in FIG. 25, which will be described later) has been received. If it is determined that the data has not been received, the process proceeds to S710, and if it is determined that the data has been received, the data is transmitted to the control unit 21 (S709). At this time, the data used in the communication between the communication terminal 81' and the control unit 21 is converted from the communication protocol (third communication protocol P3) of the data used in the communication between the communication terminal 81' and the communication converter 12''. Change to the communication protocol (first communication protocol P1) and transmit. Based on the transmitted data, the control unit 21 determines whether or not the data has been received (S106 in FIG. 9).

Next, it is determined whether or not data has been received from the control unit 21 (S710). 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 S711, and if it is determined that the data has been received, the data is transmitted to the communication conversion device 12'' (S712). At this time, from the communication protocol (first communication protocol P1) of data used in communication between the communication terminal 81' and the control unit 21, the data used in the communication between the communication terminal 81' and the communication converter 12'' Change to the communication protocol (third communication protocol P3) and transmit. Based on the transmitted data, the communication conversion device 12'' determines whether or not data has been received (S810 in FIG. 25, which will be described later). After S712, the process returns to S708.

In S711, it is determined whether or not data has been received within a certain period of time. If the data is not received within the predetermined time, it is determined that the communication has been disconnected, and the process returns to S702 to perform pairing again. In the state of S702, the communication interval can be reduced more than in the states of S708 and S710, and the power saving mode can be set. Therefore, wasteful power consumption of the communication terminal 81' can be suppressed.

FIG. 25 shows an example of a flow chart in the communication conversion device of the fifth embodiment of the display system for agricultural machinery of the present invention. In the communication conversion device 12'' of the fifth embodiment, processing is performed according to the flowchart of FIG.

When the power is turned on (S801), it is determined whether or not a device waiting for connection is detected (S802). When the information of the device waiting for connection output from the communication terminal 81′ (S703 in FIG. 24) is received, it is determined that the device waiting for connection is detected, and the device waiting for connection is output to the display device 11. (S803). Based on this output, the device waiting for connection is displayed on the display device 11 (S303 in FIG. 11). Note that if the information of the device waiting for connection is not received, the process remains as in S802.

Next, it is determined whether or not a pairing request has been received (S804). The determination here is based on whether or not the pairing request (S305 in FIG. 11) transmitted from the display device 11 has been received. If the pairing request is not received, the process returns to S802, and if the pairing request is received, the pairing request for the requested device is transmitted to the communication terminal 81' (S805). This pairing request is sent to the communication terminal 81', and the communication terminal 81' determines based on this whether or not the pairing request has been received (S704 in FIG. 24).

Next, it is determined whether the pairing has succeeded (S806). If the pairing completion information (S707 in FIG. 24) output from the communication terminal 81' is received, it is determined that the pairing is successful, and if it is not received, it is determined that the pairing is not successful. If it is determined that the pairing is not successful, the process returns to S802, and if it is determined that the pairing is successful, the pairing completion information is output to the display device 11 (S807). Based on this, the display device 11 determines whether the pairing is successful (S306 in FIG. 11).

Next, it is determined whether or not data has been received from the display device 11 (S808). This determination is made based on whether or not data output from the display device 11 (S309 in FIG. 11) has been received. If it is determined that the data has not been received, the process proceeds to S810, and if it is determined that the data has been received, the data is transmitted to the communication terminal 81' (S809). At this time, from the communication protocol (second communication protocol P2) of the data used in the communication between the communication conversion device 12'' and the display device 11, the The data is changed to the communication protocol (third communication protocol P3) and transmitted. Based on the transmitted data, the communication conversion device 12'' determines whether or not the data has been received (S708 in FIG. 24).

Next, it is determined whether or not data has been received from the communication terminal 81' (S810). The determination here is based on whether or not data output from the communication terminal 81' (S712 in FIG. 24) has been received. If it is determined that the data has not been received, the process proceeds to S811, and if it is determined that the data has been received, the data is transmitted to the display device 11 (S812). At this time, from the communication protocol (third communication protocol P3) of the data used in the communication between the communication conversion device 12'' and the communication terminal 81', the The data is changed to the communication protocol (second communication protocol P2) and transmitted. Based on the transmitted data, the display device 11 determines whether or not the data has been received (S310 in FIG. 11). After S812, the process returns to S808.

In S811, it is determined whether or not data has been received within a certain period of time. Then, if the data is not received within the fixed time, it is determined that the communication has been cut off, and the process returns to S802. In the state of S802, the communication interval can be reduced more than in the states of S808 and S810, and the power saving mode can be set. Therefore, wasteful power consumption of the communication converter 12'' can be suppressed.

In the display device 11 of the fifth embodiment, processing is performed according to the flowchart of FIG. 11 described above. Here, the difference is that data is exchanged with the communication conversion device 12''. Other processing in the display device 11 is basically the same. Hereinafter, the points different from the description of FIG. 11 of the first embodiment described above will be mainly described.

Information for displaying the devices waiting for connection on the screen in S303 is output from the communication conversion device 12'' (S803 in FIG. 25).

The transmission of the pairing request in S305 is transmitted to the communication conversion device 12''. Based on this, the communication conversion device 12'' determines whether or not the pairing request has been received (S804 in FIG. 25).

Whether or not the pairing in S306 has succeeded can be determined based on the pairing completion information (S807 in FIG. 25) output from the communication conversion device 12''. When the pairing completion information is received, it is determined that the pairing is successful, and when the pairing completion information is not received, it is determined that the pairing is not successful.

The output of the setting data in S309 is output to the communication conversion device 12''. Based on this, the communication conversion device 12'' determines whether or not data has been received from the display device 11 (S808 in FIG. 25).

The data in determining whether data has been received in S310 is the data transmitted from the communication conversion device 12'' (S812 in FIG. 25).

Thus, the fifth embodiment has the following effects in addition to the effects of the first embodiment. Since wireless communication is performed by the communication terminal 81', the communication conversion device 12'' need not have a wireless communication function. At this time, cost can be suppressed by using a general device such as a smartphone as the communication terminal 81'. Here, if the communication line 19 is a communication line conforming to a communication standard (USB or lightning) generally used in smartphones or the like, connection is easy, and application is applied to the communication terminal 81′. You can keep costs down. Furthermore, the communication terminal 81' can display the same display as the display device 11 described with reference to FIGS. can be confirmed and operated.

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, although an example has been shown in which reliable communication can be performed by a wired connection between the display device 11 and the communication conversion device 12, a wireless communication connection can also be applied between them.

Further, although the display device 11 and the communication terminal 81 have been described as touch panels, a configuration in which an operation unit is provided near the display screen and operated there is also applicable.

In the above-described embodiment, examples of the agricultural work machine 2 include the plowing work 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, the communication protocol between the control unit 21 and the communication conversion device 12 in the first to third embodiments, the control unit 21 and the communication terminal 81, and the communication conversion device 12' and the display device 11' in the fourth embodiment, Although low-power BLE has been described, it can also be applied to other than this. For example, Bluetooth, Wi-Fi, etc., other than BLE. Other than Bluetooth, the processing for mutual authentication may be performed by applying a method other than pairing instead of pairing. Note that a communication protocol is a concept that defines rules for communication on a network, and includes standards, specifications, and the like.

Further, in the fourth embodiment, information is obtained from the tractor 1 by connecting to the tractor-side controller 13, but a configuration in which the tractor-side controller 13 is not connected is also applicable.

Further, in the fifth embodiment, the communication conversion device 12'' and the communication terminal 81' are connected by wire, but information may be exchanged by wireless communication. In this case, although it is necessary to equip the communication conversion device 12'' with a wireless communication function, the contents of the display device 11 can be displayed on the communication terminal 81'. Also, the communication terminal 81' can be freely moved. An example of wireless communication here is, for example, Wi-Fi.

1 tractor 2 agricultural implements 11, 11' display devices 11a, 11a' display screens 12, 12', 12'' communication conversion device 13 tractor-side controllers 15, 16, 17, 18, 19, 25 communication lines 21, 21' control Part 22 Sensor 23 Actuator 30 Plowing machine 36 Electric hydraulic cylinder 38 Control box 40 Extended ground leveling body driving device 46 Second ground leveling body driving device 50 Horizontal state display 56 Graphical display 58 State display 60 Depth state display 66 Graphical display 68 State Display 81, 81' Communication terminal 81a Display screen 100 Ridge coating machine 111 First cylinder 112 Second cylinder 200 Fertilizer seed machine 202 Fertilizer motor 212 Seeding motor

Claims (20)

In a display system for agricultural machinery that is attached to a tractor and applied to agricultural machinery that performs agricultural work,
a display device that can be arranged on the tractor; a communication conversion device that can communicate with the display device and is installed on the tractor; a sensor installed on the agricultural working machine; and information of the sensor installed on the agricultural working machine. and a control unit capable of communicating with the communication conversion device,
communication between the control unit and the communication conversion device uses a first communication protocol, and communication between the communication conversion device and the display device uses a second communication protocol;
When receiving data from the control unit and transmitting the data to the display device, the communication conversion device converts the data from the first communication protocol to the second communication protocol, and receives the data from the display device. A display system for an agricultural machine, wherein the second communication protocol is converted to the first communication protocol when transmitting to the control unit. In the display system for agricultural machinery according to claim 1,
A display system for an agricultural machine, wherein the display device displays a state of the agricultural machine based on information from the sensor. In the display system for agricultural machinery according to claim 2,
A display system for an agricultural machine, wherein the display device displays a plurality of states of the agricultural machine on a display screen for each type of state. In the display system for agricultural machinery according to claim 2 or 3,
A display system for an agricultural implement, wherein the state of the agricultural implement includes at least one of a tilt state with respect to horizontal and a working depth state. In the display system for agricultural machinery according to any one of claims 2 to 4,
A display system for an agricultural machine, wherein the status of the agricultural machine is displayed on a screen of the display device by including a diagram, picture, or characters corresponding to the agricultural machine. In the display system for agricultural machinery according to claim 5,
The display screen of the display device is composed of a touch panel,
The agricultural implement includes an actuator,
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. A display system for an agricultural machine characterized by: In the display system for agricultural machinery according to claim 6,
A display system for an agricultural implement, 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 the display system for agricultural machinery according to any one of claims 1 to 7,
Equipped with a communication terminal,
The controller is capable of wireless communication with the communication terminal according to the first communication protocol, and the communication terminal displays the state of the agricultural machine based on information from the sensor. display system. In the agricultural work machine display system according to claim 8,
The display system for an agricultural machine, wherein the communication terminal displays two statuses of the agricultural machine on a display screen for each type of status, arranging them in the vertical direction. In the agricultural machine display system according to any one of claims 1 to 9,
A display system for agricultural machinery, wherein wireless communication is performed between the control unit and the communication conversion device, and communication is performed by wired connection between the communication conversion device and the display device. In the agricultural machine display system according to claim 10,
A display system for agricultural machinery, wherein the first communication protocol uses BLE (Bluetooth Low Energy), and the second communication protocol uses CAN (Controller Area Network). In the display system for agricultural machinery according to any one of claims 1 to 7,
A display system for an agricultural work machine, wherein a wire connection is established between the control unit and the communication conversion device for communication, and a wireless communication is established between the communication conversion device and the display device. In the agricultural machine display system according to claim 12,
A display system for an agricultural implement, wherein the communication conversion device and the control unit are connected by wire to a tractor-side controller provided in the tractor and capable of outputting at least vehicle speed information of the tractor. In the agricultural machine display system according to claim 12 or 13,
A display system for agricultural machinery, wherein the first communication protocol uses CAN (Controller Area Network), and the second communication protocol uses BLE (Bluetooth Low Energy). In a display system for agricultural machinery that is attached to a tractor and applied to agricultural machinery that performs agricultural work,
a display device that can be arranged on the tractor; a communication conversion device that can communicate with the display device and is installed on the tractor; a communication terminal that can communicate with the communication conversion device; a sensor, and a control unit installed in the agricultural machine and capable of acquiring information from the sensor and capable of communicating with the communication terminal,
Communication between the control unit and the communication terminal uses a first communication protocol, communication between the communication conversion device and the display device uses a second communication protocol, and the communication terminal and the communication terminal use a second communication protocol. communication with the conversion device uses a third communication protocol;
the communication terminal converts data from the first communication protocol to the third communication protocol when receiving data from the control unit and transmitting the data to the communication conversion device;
The display system for agricultural machinery, wherein the communication conversion device converts data from the third communication protocol to the second communication protocol when receiving data from the communication terminal and transmitting the data to the display device. . In the agricultural machine display system according to claim 15,
the communication conversion device, when receiving data from the display device and transmitting the data to the communication terminal, converts the data from the second communication protocol to the third communication protocol;
The display system for agricultural machinery, wherein the communication terminal converts data from the third communication protocol to the first communication protocol when receiving data from the communication conversion device and transmitting the data to the control unit. . In the agricultural machine display system according to claim 15 or 16,
A display system for an agricultural machine, wherein the display device displays a state of the agricultural machine based on information from the sensor. In the agricultural machine display system according to any one of claims 15 to 17,
A display system for an agricultural machine, wherein the communication terminal displays a state of the agricultural machine based on information from the sensor. In the agricultural machine display system according to any one of claims 15 to 18,
Wireless communication is performed between the control unit and the communication terminal, communication is performed by wired connection between the communication terminal and the communication conversion device, and wired connection is performed between the communication conversion device and the display device. A display system for an agricultural machine, characterized by performing communication. In the agricultural machine display system according to claim 19,
The first communication protocol uses a BLE (Bluetooth Low Energy) communication protocol, the second communication protocol uses a CAN (Controller Area Network) communication protocol, and the third communication protocol uses a USB ( A display system for agricultural machinery, characterized by using a communication protocol of Universal Serial Bus or Lightning.

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