JP5870362B2 - Combine monitoring device - Google Patents

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, even if the monitor displays the image from the camera provided on the discharge auger, the monitor image is displayed from the camera provided on the rear side of the fuselage when the traveling transmission is in the reverse drive state. A combine monitoring device has been devised that prioritizes the video of the camera provided on the rear side of the machine so as to switch to the video (for example, Patent Document 1).

JP 2008-245610 A

  In the monitor device described in Patent Document 1, the monitor image is switched preferentially only when the image is switched from the camera provided behind the fuselage in conjunction with the reverse operation of the combine. Yes, for example, when operating the discharge auger during reverse travel of the combine, in order to change the image on the monitor to the image from the camera provided on the discharge auger, the driver must switch each time. Not only is it bothersome, but it reduces work efficiency.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a combine monitoring device that solves the above-mentioned problems by making it possible to switch the auto mode for switching the monitor image to the back priority mode or the auger priority mode.

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 (75) 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 changeover switch (60) for switching an image displayed on the monitor (57) to an image from the back camera (35) or an image from the auger camera (25);
An auto switch (61) for turning on / off the auto mode (75) by the back priority mode (73) or the auger priority mode (72) giving priority to the video switched by the changeover switch (60) ,
The auger priority mode (72) is a video from the auger camera (25) except that the video from the back camera (35) is displayed on the monitor (57) based on the detection of the back state of the airframe (3). Is given priority on the monitor (57),
The back priority mode (73) is such that the image from the back camera (35) is displayed on the monitor (57) with priority, except that the discharge auger (10) is in a discharge workable state. Features.

  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 auto mode for switching the monitor image according to the combine working state can be switched to either the back priority mode or the auger priority mode. The range of driver's choices can be widened, and the mode can be switched according to various operations such as a mowing operation and a grain discharging operation, so that work efficiency can be improved. In addition, the selection of the back priority mode and the auger priority mode in the auto mode is performed with a changeover switch for manually switching the image from the back camera and the auger camera, so that various changes can be made with the changeover switch and the auto switch. Is easy and can reduce misoperation.
In the auger priority mode, the image from the auger camera is displayed on the monitor with priority other than the detection of the back state of the aircraft, and in the back priority mode, the discharge auger is in a state where discharge work is possible. Since the video from the back camera is preferentially displayed on the monitor, it is possible to save the trouble of the monitor switching operation and improve the work efficiency by setting each priority mode.

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 each priority mode. The flowchart which shows the operation | movement at the time of an auger priority mode. The flowchart which shows the operation | movement at the time of back priority mode.

  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, and the like are attached to the cover 26. 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 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. The switch box 59 is used to manually convert the image of the monitor 57 to the image from the auger camera 25 or the back camera 35. A changeover switch 60 for switching is provided.

  The changeover switch 60 is a toggle switch, and is provided so that the changeover switch 60 can be switched between a position tilted left (auger camera position) and a position tilted right (back camera position). Next to the changeover switch 60, there is provided an auto switch 61 for turning on / off an auto mode 75 including an auger priority mode 72 and a back priority mode 73. The switch 61 is a push switch. Further, a monitor lamp 62 is provided above the auto switch 61 to notify the on / off state of the auto switch 61.

  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 and the auto switch 61, the auger potentiometer 66 for detecting whether the discharge auger 10 is in a dischargeable range where the grain can be discharged, and the back of the combine 1 (back operation) ) And a work speed detection sensor 69 for detecting the work speed of the combine 1, and the output side thereof includes an auger camera 25, a back camera 35, a monitor 57, and a monitor lamp 62. Etc. are connected. The microcomputer 65 also has an auger camera fixing mode 70 for fixing the video on the monitor 57 to the video from the auger camera 25, a back camera fixing mode 71 for fixing the video on the monitor 57 to the video from the back camera 35, and the auger camera 25. And an auto mode 75 for selecting a back priority mode 73 for preferentially displaying video from the back camera 35 on the monitor 57. Yes.

  Next, the switching operation of the monitor 57 in the combine monitoring apparatus configured as described above will be described with reference to the flowcharts of FIGS. When the auto switch 61 is turned off (S1: NO), the driver tilts the changeover switch 60 provided in the switch box 59 to the left and switches to the auger camera position (S2: YES), the microcomputer 65 fixes the auger camera. Switching to mode 70 (S3), the image on the monitor 57 is fixed to the image from the auger camera 25, and the image below the discharge auger 10 taken by the auger camera 25 is projected on the monitor 57 (see FIG. 9). .

  Conversely, when the driver tilts the changeover switch 60 to the right and switches to the back camera position, the microcomputer 65 switches to the back camera fixing mode 71 (S4), and the image on the monitor 57 is fixed to the image from the back camera 35. Then, the rear image of the machine body 3 photographed by the back camera 35 is projected on the monitor 57 (see FIG. 10).

  Further, when the driver presses the auto switch 61 to switch the microcomputer 65 to the auto mode 75 (S1: YES), when the changeover switch 60 is at the auger camera position (S5: YES), the microcomputer 65 is connected to the auger camera. The mode is switched to the priority mode 72, and the video on the monitor 57 is displayed in the auger priority mode (S6).

  The auger priority mode 72 in which the changeover switch 61 is on the auger camera side when the auto switch 61 is turned on will be described with reference to FIG. When the discharge auger 10 is not within the dischargeable range (S8: NO), that is, when the combine 1 is backed while the discharge auger is in the storage position and the cutting operation is being performed, traveling on the road, or while the body 3 is stopped (back operation (S14: YES), the holding timer 2 is set (S15), and an image from the back camera 35 is displayed on the monitor 57 (S13).

  When the combine 1 is in a cutting operation or the like and the machine body 3 is stopped or moved forward (S14: NO), it is determined whether or not the time set by the holding timer 2 has passed (S16). At this time, if the time has not elapsed, the video from the back camera is continuously displayed on the monitor 57 (S13). When the time has elapsed (S16: = 0), the monitor 57 displays the video from the auger camera 25. (S17).

  In other words, even during the cutting operation, even if the airframe 3 is in the reverse state or the back detection is temporary, the video from the back camera 35 continues for a predetermined time (the time set by the holding timer 2). Displayed on the monitor 57, otherwise, the front of the cutting unit is displayed on the monitor 57 by the auger camera 25 (S11).

  When the discharge auger 10 moves from the storage position and is within the auger dischargeable range (S8: YES), it is detected whether or not the body 3 is in the back state (back operation) (S9), and the body 3 is When the aircraft is in a state other than the state or in the forward state (S9: NO), the holding timer 1 is set (S10) and the video from the auger camera 25 is displayed on the monitor 57.

  If the back of the airframe 3 is not detected when the discharge auger 10 is within the auger dischargeable range (S9: NO), the time is repeatedly set by the holding timer 1, and the image from the auger camera 25 is displayed on the monitor 57. Is displayed and the body 3 enters the back state (S9: YES), the video from the auger camera 25 continues until the time set by the holding timer 1 elapses (S12: ≠ 0). It is displayed on the monitor 57. Then, after the time set by the holding timer 1 has elapsed (S12: = 0), the video on the monitor 57 is switched to the back camera 35.

  In other words, when the discharge auger is in a discharge work enabled state, the predetermined time (the time set by the holding timer 1) is not detected even if the back of the body 3 is detected from the stop and advance state of the body 3 (ie, other than back detection). The video from the auger camera 25 is displayed on the monitor 57, and after the predetermined time has elapsed, the video is switched to the video from the back camera 35. That is, in the auger priority mode 72, a back is detected in a state other than an auger dischargeable state such as a cutting operation, and even if the body 3 is stopped after the back is detected, the video from the back camera 35 continues for a predetermined time. When the auger can be ejected on the monitor 57, the image from the auger camera 25 is displayed on the monitor 57 for a predetermined time even after the back of the machine body 3 is detected, and then the image from the back camera 35 is displayed. In other cases, the video from the auger camera 25 is preferentially displayed on the monitor 57.

  The back priority mode 73 in which the changeover switch 60 is at the back camera position when the auto switch 61 is turned on (S5: NO) will be described with reference to FIG. In the back priority mode 73, the video from the back camera 35 is preferentially displayed on the monitor 57 except when the discharge auger 10 is in a dischargeable state (S7). That is, when the combine is in the cutting operation (S18: YES), and in the non-cutting operation (S18: NO), when it is not within the dischargeable range, for example, in the road running state (S19: NO), the back camera 35 Are displayed on the monitor 57 (S21, S22, S25).

  If the work speed (cutting speed) is equal to or higher than the setting when the cutting work is in progress (S18: YES), the images from the back camera 35 and the auger camera 25 are alternately switched (S25). Unit (pre-processing unit 5) can be operated while confirming the state in front and the state behind the body 3, and when the working speed becomes lower than the setting (including body stop and back) (S23), from the back camera 35 Are continuously displayed on the monitor 57 (S24).

  When the discharge auger 10 moves out of the storage position and moves into the dischargeable range (S19: YES), the video from the auger camera 25 is displayed on the monitor 57 except for detecting the back (forward or stop state) (S20: NO). The auger operation can be performed while confirming the image (S22) 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 (S20: YES), the video from the back camera 35 is projected on the monitor 57 (S21).

  As described above, the auto mode 75 in which the image of the monitor 57 is switched according to the work state of the combine 1 can be switched on / off, and the auto mode 75 can be switched to the back priority mode 73 or the auger priority mode 72. Therefore, the auto mode 75 can be set according to the driver's preference. Thereby, the range of selection of the driver's setting is widened, and the mode can be switched in accordance with various work such as mowing work and grain discharging work, so that work efficiency can be improved.

  The selection of the back priority mode 73 and the auger priority mode 72 in the auto mode 75 is performed by the changeover switch 60 for manually switching the images from the back camera 35 and the auger camera 25. Can be switched, the operation is easy, and erroneous operations can be reduced.

  Further, in the auger priority mode 72, the video from the auger camera 25 is preferentially displayed on the monitor 57 except for the detection of the back state of the machine body 3, and in the back priority mode 73, the discharge auger 10 is in a state where discharge work is possible. Since the video from the back camera 35 is preferentially displayed on the monitor 57, for example, it is easy to confirm the rear of the machine during the back operation of the combine 1, and the confirmation of the auger discharge and the discharge auger during the discharge operation. In addition to facilitating alignment with the 10 tracks, it is possible to save the trouble of the monitor switching operation and improve work efficiency.

  Also, when aligning the tip of the discharge auger with a truck or the like to perform the auger discharge operation, the auger tip position is positioned while confirming the grain discharge position on the image from the auger camera 25. However, in the auger priority mode 72, the video from the auger camera 25 is held for a predetermined time from the detection of the back, so that the driver can monitor the auger camera 35 with the monitor 57. While viewing the video, the airframe 3 can be slightly advanced to accurately adjust the discharge position of the discharge auger 10.

  Further, during the cutting operation, for example, when the direction of the machine body 3 is changed at the headland, the combine 1 is switched to stop, reverse, and forward. However, even if the combine 1 is switched from the reverse state, the image from the back camera 35 is monitored for a predetermined time. Therefore, the driver can easily and safely operate the vehicle while confirming the situation behind the airframe 3.

  Further, in the back priority mode 73, when the work speed of the combine 1 exceeds a preset speed during the cutting operation, the video from the auger camera 25 and the video from the back camera 35 are constant on the monitor 57. Since it is displayed alternately at intervals, that is, when the body 3 continues to advance while moving forward in the field, the operation is stable, and the operator is in a state of cutting 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 back camera 35.

  Further, in the back priority mode 73, when the operation speed of the combine 1 is lower than the preset speed during the cutting operation, that is, when the vehicle is moving forward, stopped, or moving backward (back), the video from the back camera 35 is continuously displayed. Since it is displayed on the monitor 57, for example, when working carefully while looking directly at the harvesting part such as a fallen cedar, the back of the machine 3 can be continuously confirmed on the monitor 57, and the machine on the headland When the direction of the vehicle 3 is changed or when the vehicle 3 is stopped, reversely moved, or switched forward, the rear of the vehicle 3 is continuously displayed on the monitor 57, and the rear can be confirmed.

  In addition, when the discharge auger 10 is in the dischargeable range in the back priority mode 73, the image from the auger camera 25 is displayed on the monitor 57 except for the detection of the back operation. This makes it easy to check and position the discharge auger 10 with the track. Regardless of the range in which the auger can be discharged, the back of the airframe 3 can be confirmed by the video from the back camera 35 when the back is detected, and the work is performed safely. be able to.

  Further, in the back priority mode 73, when the backward movement of the machine body 3 is detected during the grain discharging operation by the discharge auger 10, if the back camera 35 and the auger camera 25 are alternately switched, the backward movement safety of the machine body 3 is ensured. It is possible to confirm the discharge state of the auger tip while confirming the above.

  In the present embodiment, in the auger priority mode 72, when the discharge auger 10 is in the auger dischargeable range, even if the back of the airframe 3 is detected from the stop or forward state of the airframe 3, after a predetermined time has elapsed, However, the present invention is not limited to this. For example, when the discharge auger 10 is in the range in which the auger can be discharged, the combine 1 is operated back, and the back speed exceeds a predetermined speed. Then, it may be configured to switch to the video from the back camera 35. With this configuration, the monitor 57 is an image from the auger camera 25 at the time of auger alignment performed at a low speed back, so that fine adjustment is easy and the image from the back camera 35 is switched at a certain speed or more. is there.

  In the present embodiment, when the discharge auger 10 is moved to the auger dischargeable range in the back priority mode 73, the image on the monitor 57 is switched to the image from the auger camera 25, and the back operation of the body 3 is detected. In this case, the video is projected from the back camera 35 on the monitor 57. However, the present invention is not limited to this. For example, after the monitor 57 is switched to the video from the auger camera 25, the back operation is performed, and It may be configured to switch to the back camera 35 when the reverse speed of the combine by the back operation 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 61 Auto switch 65 Control part (microcomputer)
72 Auger priority mode 73 Back priority mode 75 Auto mode 25, 35, 57 Monitoring device for combine

Claims (1)

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
A changeover switch for switching the video displayed by the monitor to the video from the back camera or the video from the auger camera;
E Bei and a auto switch for turning on and off the automatic mode by a back priority mode or auger priority mode giving priority to image that is switched by said switching switches,
In the auger priority mode, the video from the auger camera is preferentially displayed on the monitor other than displaying the video from the back camera on the monitor based on the detection of the back state of the aircraft,
The back priority mode is configured such that the image from the back camera is displayed on the monitor with priority, except that the discharge auger is in a discharge work enabled state.
A monitoring device for a combine.

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