JP2013201981A - Monitor device for combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem that every time various operations are carried out, an operator oneself needs to change monitor images and the change is troublesome for the operator.SOLUTION: A monitor device for a combine harvester includes a control part that has a back camera fixation mode for fixing a monitor image to an image from a back camera, an auger camera fixation mode for fixing a monitor image to an image from an auger camera and an auto mode for display by a back priority mode and a selector switch for changing the control part to any of the back camera fixation mode, the auger camera fixation mode and the auto mode.

Description

  The present invention relates to a combine monitoring device that displays an image captured by an auger camera and a back camera on a monitor provided in a driver's seat, and more specifically, a control for switching the image displayed on the monitor to an image from a back camera or an auger camera. About.

  In general, a grain tank for storing threshed grains is provided behind the driver's seat of the combine. Depending on the combine, the visibility of the driver's rear side of the fuselage may be blocked by this glen tank, and in this case, the driver cannot check the rear of the fuselage. Therefore, a camera is provided on the rear side of the machine body, a monitor is provided on the driver's seat, an image of the rear of the machine body photographed by the camera is displayed on the monitor, and the driver performs a driving operation while confirming the rear of the machine body on the monitor.

  In addition, a camera for photographing the lower part of the discharge auger is also provided at the tip of the discharge auger, and the image is displayed on the monitor, and the driver monitors the grain when the grain in the grain tank is discharged by the discharge auger. Confirm the position of the tip of the discharge auger from the image and perform the discharge operation.

  Conventionally, a combine monitoring device has been devised that can switch between a work mode in which the image displayed on the monitor is an image from the camera provided on the discharge auger and a reverse mode in which the image is provided from the camera provided behind the aircraft. (For example, Patent Document 1).

JP 2008-245610 A

  However, in the monitor device described in the above-mentioned Patent Document 1, there are only two switching methods for switching the monitor display, that is, the image behind the fuselage or the image below the discharge auger. When the monitor image is switched from the camera of the discharge auger and the monitor image is switched to the rear of the aircraft, the driver must perform the monitor switching operation each time, which is troublesome for the driver. .

  Therefore, the present invention has an object to provide a combine monitoring device that solves the above-mentioned problems by enabling the display of the monitor to be switched between a back camera fixing mode, an auger camera fixing mode, and an auto mode. And

The present invention is arranged on the rear side of the fuselage (3), on the back side of the back camera (35) for photographing the rear of the fuselage (3), and on the distal end side of the discharge auger (10) provided on the fuselage (3) An auger camera (25) that is disposed and shoots the lower side of the distal end side of the discharge auger (10), and a monitor (57) that displays images taken by the back camera (35) and the auger camera (25). In the combine monitoring device (25, 35, 57) provided,
A back camera fixing mode (71) for fixing an image to be displayed on the monitor (57) to an image from the back camera (35), and an auger camera fixing mode (70) for fixing to an image from the auger camera (25). And a control unit (65) having an auto mode for switching to an image from the auger camera (25) or the back camera (35) according to the working state of the combine (1),
A switch (60) for switching the control unit (65) to any one of the back camera fixing mode (71), the auger camera fixing mode (70), and the auto mode (72). To do.

  In the auto mode (72), for example, referring to FIG. 13, the monitor (57) gives priority to the image from the back camera (35) except that the discharge auger (10) is in a discharge workable state. The back priority mode is displayed.

  In addition, although the code | symbol in the said parenthesis is for contrast with drawing, it does not have any influence on description of a claim by this.

  According to the first aspect of the present invention, the video displayed on the monitor can be switched to the video from the back camera and the auger camera, and the auto that switches to the video from the back camera or the auger camera according to the working state of the combine. Since the mode can be switched, it is possible to save the trouble of switching the monitor image every time the back operation or the discharge auger operation is performed. Thereby, the troublesome operation of the switching operation by the driver is eliminated, and the display of the monitor according to the work becomes possible, and the efficiency of various works such as the mowing work and the discharging work can be improved.

  According to the second aspect of the present invention, since the video from the back camera is displayed on the monitor except that the discharge auger is in the discharge work enabled state, for example, during the harvesting operation of the combine, the video from the back camera has priority. In the state where the driver can work while confirming the back state and the grain is discharged by the discharge auger, the image is automatically switched so that the image from the auger camera is displayed on the monitor. As a result, the driver does not have to worry about switching the driver, and the efficiency of various operations such as cutting and discharging can be improved.

The side view which shows the combine provided with the monitor apparatus which concerns on this Embodiment. The plan view. The side view which shows the structure of the front end side of a discharge auger. The exploded view of the front end side of the discharge auger. The exploded view which shows the attachment structure of a back camera. The enlarged side view which shows a back camera. The perspective view which shows a driving | operation operation part. The figure which shows the inside of the drive operation part seen from the driver's seat at the time of a driver | operator's seating. The front view which shows the monitor which displayed the image | video from an auger camera. The front view which shows the monitor which displayed the image | video from a back camera. The control block diagram of a control part. The flowchart which shows switching of each fixed mode and auto mode. The flowchart which shows the switching operation | movement of the monitor at the time of back priority mode. The figure which shows other embodiment of the changeover switch of a monitor.

  A combine monitoring apparatus according to an embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, a combine 1 including a combine monitoring device according to the present embodiment includes a body (traveling body) 3 supported by a pair of left and right crawler traveling devices 2. In front, a pre-processing unit 5 for cutting grains and the like is provided. A driving operation unit 6 for operating and manipulating the combine 1 is provided behind the preprocessing unit 5, and cereals harvested by the preprocessing unit 5 are provided behind the driving operation unit 6. A threshing part (threshing device) 7 for threshing and a grain storage part (Glen tank) 8 for storing the grain threshed by the threshing part 7 are provided.

  Moreover, as shown in FIG. 2, the discharge auger 10 which discharges the grain stored in the grain storage part 8 is provided above the threshing part 7 and the grain storage part 8, and the said threshing part 7 Is provided with a post-processing unit 9 that post-processes the threshing threshed by the threshing unit 7.

  The discharge auger 10 is provided so as to be swingable in the vertical and horizontal directions, and has a horizontal spiral (not shown) installed in the lower part of the grain storage unit 8 and a vertical pipe 11 extending upward (FIG. 1). Reference), a helical carrier (not shown) installed in the vertical pipe 11, a horizontal pipe 12 extending forward, a helical carrier 13 (see FIG. 3) installed in the horizontal pipe 12, and the grains. And a discharge unit 15 for discharging.

  As shown in FIG. 3, the discharge unit 15 is provided on the distal end side of the discharge auger 10 and is provided with a discharge port 16 formed in a rectangular shape. A cover 17 is attached to the discharge port 16 so as to surround the discharge port 16, and an auger flap 19 is provided so as to be freely opened and closed. The auger flap 19 is supported by a rotating shaft (not shown). A sector gear 22 that meshes with the output gear 21 of the electric motor 20 is attached to the rotating shaft, and the rotation angle of the rotating shaft is detected. A potentiometer 23 is provided.

  Further, as shown in FIG. 4, the discharge unit 15 is provided with an auger camera 25 for photographing the lower side of the distal end side of the discharge auger 10. The auger camera 25, the electric motor 20, etc. Covered. The cover 26 is provided with a holder 29 that houses a remote controller 27 for operating the discharge auger 10, and an illumination lamp 30 that illuminates the lower portion of the discharge portion 15 is provided next to the holder 29. .

  As shown in FIG. 5, the post-processing unit 9 provided at the rear of the machine body 3 is provided with a waste cutter (not shown) that shreds the waste that has undergone the threshing process. The switch plate 31 is provided so as to be freely opened and closed. A frame body 32 is provided above the switching plate 31 so as to cover the switching plate 31. An illumination lamp 33 for illuminating the rear side of the machine body 3 is provided on the surface of the plate member 32a constituting the frame body 32, and a back camera for photographing the rear of the machine body 3 on the back surface of the plate member 32a. 35 is attached via a mounting bracket 36.

  A cover 37 is attached to the rear side of the frame body 32. When the cover 37 is attached to the cover body, the cover 37 is formed with a rectangular cutout portion 37a that surrounds the back camera 35. The cutout portion 37a has a rectangular cutout portion 37a. As shown in FIG. 2, a collar portion 37b for covering the back camera 35 is provided.

  As shown in FIG. 7, the driving operation unit 6 for driving the combine 1 by a driver is covered with a cabin 43 including a windshield 39, a sliding glass door 40, a rear glass 41, a roof unit 42, and the like. . A driver seat 45 on which a driver is seated is provided in the cabin 43, and a remote controller 46 for operating the discharge auger 10 is disposed behind the driver seat 45.

  A front panel 49 is provided in front of the driver's seat 45. The front panel 49 is provided with a steering lever 50 for steering the combine 1, a display panel 51 for displaying various instruments, and the like. It has been. A side panel 52 is provided on the side of the driver's seat 45, and a main transmission lever 53 and a sub transmission lever 55 that change the speed of the combine 1 are provided on the side panel 52. Further, below the driver's seat 45, an engine (not shown) is disposed so as to be covered with an engine cover 56.

  As shown in FIG. 8, the driving operation unit 6 is provided with a monitor 57 for displaying images from the auger camera 25 and the back camera 35 on the upper right side. The monitor device 25, 35, 57 for combine is composed of the monitor 57, the auger camera 25, the back camera 35, and the like.

  As shown in FIGS. 9 and 10, the monitor 57 is provided with a switch box 59 for switching the image of the monitor 57 to the image from the auger camera 25 or the back camera 35. The changeover switch 60 is provided.

  The changeover switch 60 is composed of a three-position toggle switch, a position where the changeover switch 60 is inclined to the left (auger camera position), a position where the changeover switch 60 is inclined to the right (back camera position), and a position where the switch is neutral. It can be switched to three positions (auto mode position).

  Further, the combine monitoring apparatus has a control unit 65, and the control unit 65 is constituted by a microcomputer (hereinafter simply referred to as a microcomputer) as shown in FIG. On the input side of the microcomputer 65, in addition to the changeover switch 60, an auger potentiometer 66 for detecting whether the discharge auger 10 is in a dischargeable range where the grain can be discharged, and a back of the combine 1 are detected. A back detection sensor 67 that detects the operation speed of the combine 1 and a work speed detection sensor 69 that detects the operation speed of the combine 1 are connected. An auger camera 25, a back camera 35, a monitor 57, and the like are connected to the output side. The microcomputer 65 also has an auger camera fixing mode 70 for fixing the video of the monitor 57 to the video from the auger camera 25, a back camera fixing mode 71 for fixing the video of the monitor 57 to the video from the back camera 35, and a working state. In response to this, an auto mode 72 for automatically switching to an image from the auger camera 25 or the back camera 35 is provided.

  Next, the switching operation of the monitor 57 in the combine monitoring devices 25, 35, 57 configured as described above will be described with reference to the flowcharts of FIGS. When the driver tilts the changeover switch 60 provided in the switch box 59 to the left to switch to the auger camera position (S1: YES), the microcomputer 65 switches to the auger camera fixing mode 70, and the image on the monitor 57 is displayed on the auger camera. The image below the discharge auger 10 taken by the auger camera 25 is displayed on the monitor 57 (S2) (see FIG. 9).

  Conversely, when the driver tilts the changeover switch 60 to the right and switches to the back camera position (S1: NO, S3: YES), the microcomputer 65 switches to the back camera fixing mode 71, and the image of the monitor 57 is displayed on the back camera. The video from the rear of the machine body 3 photographed by the back camera 35 is projected on the monitor 57 (S4) (see FIG. 10).

  When the driver sets the changeover switch 60 to the neutral auto mode position (S3: NO), the microcomputer 65 switches to the auto mode 72 and displays the video on the monitor 57 in the back priority auto mode ( S5).

  As described above, when the microcomputer 65 is switched to the back priority auto mode 72 by the changeover switch 60, as shown in FIG. Are preferentially displayed on the monitor 57. That is, when the combine is in the cutting operation (S6: YES), in the non-cutting operation (S6: NO), and not in the auger dischargeable range, for example, on the road (S7: NO), the back camera Video from 35 is displayed on the monitor 57 (S10, S12, S13).

  If the work speed (cutting speed) is equal to or higher than the set value during the cutting operation (S6: YES), the images from the back camera 35 and the auger camera 25 are alternately switched (S12). Unit (pre-processing unit 5) can be operated while confirming the front state and the state behind the body 3, and when the work speed is lower than the setting (including the body stop and back) (S11), from the back camera 35 Are continuously displayed on the monitor 57 (S13).

  When the discharge auger 10 moves out of the storage position and moves into the dischargeable range (S7: YES), the video from the auger camera 25 is displayed on the monitor 57 except for detecting the back (forward state or stopped state) (S8: NO). The auger operation can be performed while confirming the image (S9) and the grain discharge position at the tip of the discharge auger 10. Even in the dischargeable auger dischargeable range, when the machine body 3 is backing (S8: YES), the video from the back camera 35 is projected on the monitor 57 (S10).

  As described above, the microcomputer 65 is provided with the auto mode 72 including the auger camera fixing mode 70, the back camera fixing mode 71, and the back priority mode, and the changeover switch 60 can be switched between the fixed mode and the auto mode. When the combine 1 is turned back by switching to the auto mode or when the grain is discharged by the discharge auger, it is not necessary for the driver to switch the image of the monitor 57 each time the operation is performed. In addition to eliminating bothersomeness, it is possible to switch the display of the monitor 57 according to the work state, and it is possible to improve each work efficiency such as mowing work and discharging work.

  In addition, since the auto mode 72 is configured in the back priority mode, for example, by setting the auto mode 72, it is possible to safely perform the work while checking the state of the rear of the machine while the machine is running during the cutting operation. Efficiency can be improved.

  Further, in the back priority mode, when the operation speed of the combine 1 becomes higher than a preset speed during the cutting operation, the video from the auger camera 25 and the video from the back camera 35 are kept at a certain interval on the monitor 57. In other words, when the body 3 continues to advance while moving forward in the field, the operation is stable, and the operator can move the cutting state forward from the auger camera 25 to the front of the cutting unit. The operation can be continuously performed while alternately monitoring the dust exhaust and the like behind the machine body 3 from the camera 35.

  Further, in the back priority mode, when the work speed of the combine 1 is less than or equal to the preset speed during the cutting operation, that is, when moving forward, stopping, or moving backward (back), the video from the back camera 35 is continuously monitored. 57, for example, when working carefully while looking directly at the harvesting part, such as a fallen cedar, the rear of the body 3 can be continuously confirmed on the monitor 57, and the body 3 on the headland When the direction is changed, or when the body 3 is stopped, moved backward, or forward, the rear of the body 3 is continuously displayed on the monitor 57, so that the rear can be confirmed.

  Further, when the discharge auger 10 is in the dischargeable range in the back priority mode, the image from the auger camera 25 is displayed on the monitor 57 except for the detection of the back operation. It is easy to align the discharge auger 10 such as a truck or truck, and when the back is detected, the back of the airframe 3 can be confirmed from the image from the back camera 35 regardless of the range in which the auger can be discharged. Can do.

  Further, when the backward movement of the body 3 is detected during the grain discharging operation by the discharge auger 10 in the back priority mode, if the back camera 35 and the auger camera 25 are alternately switched, the backward traveling safety of the body 3 is ensured. It is possible to check the discharge state of the auger tip while checking.

  Although the changeover switch 60 of the monitor 57 is a three-position toggle switch, the present invention is not limited to this, and the changeover switch 60 is a two-position changeover toggle between an auger camera fixing mode 70 and a back camera fixing mode 71 as shown in FIG. As switches, an auto switch 61 and a monitor lamp 62 dedicated to the auto mode may be provided.

  Further, in the present embodiment, when the discharge auger 10 moves to the auger dischargeable range, the image on the monitor 57 is switched to the image from the auger camera 25, and when the back operation of the machine body 3 is detected, the monitor 57 However, the present invention is not limited to this. For example, after the monitor 57 is switched to the image from the auger camera 25, the back operation is performed, and the combine 1 by the back operation is displayed. It may be configured to switch to the back camera 35 when the reverse speed exceeds a certain speed (by continuing for a certain time). With this configuration, the image on the monitor 57 is switched to the image from the auger camera 25 without performing the switching operation, so that the auger discharge confirmation and the alignment with the track are facilitated. When the alignment is performed in the back, the image on the monitor 57 is switched to the image from the back camera 35, so that the alignment becomes easy.

DESCRIPTION OF SYMBOLS 1 Combine 3 Airframe 10 Discharge auger 25 Auger camera 35 Back camera 57 Monitor 60 Changeover switch 65 Control part (microcomputer)
70 Auger camera fixed mode 71 Back camera fixed mode 72 Auto mode (back priority mode)
25, 35, 57 Combine monitoring device

Claims (2)

A back camera that is disposed on the rear side of the machine body and photographs the rear of the machine body; an auger camera that is disposed on the distal end side of the discharge auger provided in the aircraft and photographs the lower side of the distal end side of the discharge auger; In a monitor device for a combine comprising: a monitor that displays images taken with a back camera and an auger camera;
The auger camera or back camera according to the back camera fixing mode for fixing the video to be displayed on the monitor to the video from the back camera, the auger camera fixing mode for fixing to the video from the auger camera, and the combine working state A control unit having an auto mode for switching to a video from
The control unit, comprising a changeover switch for switching to the back camera fixed mode, the auger camera fixed mode and the auto mode,
A monitoring device for a combine. The auto mode consists of a back priority mode in which the image from the back camera is preferentially displayed on the monitor except that the discharge auger is in a discharge workable state.
The combine monitoring apparatus according to claim 1.

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