CN108135131B

CN108135131B - Mapping system, mapping device, and computer program

Info

Publication number: CN108135131B
Application number: CN201680058118.7A
Authority: CN
Inventors: 宫本宗德; 金谷一辉
Original assignee: Yanmar Power Technology Co Ltd
Current assignee: Yanmar Power Technology Co Ltd
Priority date: 2015-10-20
Filing date: 2016-10-19
Publication date: 2021-02-26
Anticipated expiration: 2036-10-19
Also published as: JP6566833B2; KR20180019218A; KR102054086B1; CN108135131A; JP2017077204A; WO2017069146A1

Abstract

The mapping system of the present invention is characterized by comprising: a combine harvester which is provided with a cutting part (3), a threshing device (2), a discharge amount detection part (4c), positioning parts (90, 98) and a transmission part (95), wherein the cutting part (3) is installed on a traveling part (1) traveling in a field to cut corncobs in the field, the threshing device (2) threshes the corncobs cut by the cutting part, the discharge amount detection part (4c) detects the discharge amount of grains discharged to the outside from the threshing device according to the collision of the grains, the positioning parts (90, 98) measure the position of the traveling part, and the transmission part (95) transmits the measurement result of the positioning part and the detection result of the discharge amount detection part; a receiving unit (99e) that receives the measurement result and the detection result transmitted from the transmitting unit; and a discharge amount mapping unit (99) that maps the discharge amount by associating the discharge amount with the cutting position of the ear/stalk corresponding to the discharge amount, based on the measurement result and the detection result received by the receiving unit.

Description

Mapping system, mapping device, and computer program

Technical Field

The present invention relates to a mapping system, a mapping device, and a computer program for associating discharged grains with fields.

Background

When harvesting work is performed in a field, a combine harvester that cuts and threshes ear stalks and recovers grains is often used. The combine harvester cuts the ear stalks by using the cutting knife in the running process of the crawler belt, and conveys the cut ear stalks to the threshing cylinder for threshing. The stalks and grains separated from the ear stalks are screened by a coarse screen disposed below the threshing cylinder, and the screened grains are leaked downward from the coarse screen and recovered to a grain tank by a screw. Fine dust leaking downward from the scalping screen is discharged from a dust discharge port provided at the rear of the combine harvester by the blowing action of a grain blower disposed below the scalping screen, and part of the grains is also discharged from the dust discharge port together with the dust.

If the amount of the cornstalk cut increases, the amount of grains separated from the cornstalk increases, and the amount of grains discharged from the dust discharge port also increases. Therefore, when the amount of ear stalks harvested increases, it is desirable to increase the amount of grains recovered from the grain tank. In order to meet this demand, a combine harvester has been proposed which is provided with a loss sensor for detecting a loss amount (discharge amount) of discharge and a display unit capable of confirming the loss amount (see, for example, patent document 1). By visually checking the display unit, the user can check the loss amount while operating the combine harvester.

Patent document

Patent document 1: japanese patent laid-open No. 2012 and 244492

Disclosure of Invention

However, the detected loss amount may not be sufficiently reflected in the setting of the combine or the like.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a mapping system, a mapping device, and a computer program that facilitate reflecting the discharge amount of grains discharged to the outside, such as the setting of a combine harvester.

The mapping system according to the present invention is characterized by comprising: a combine harvester including a harvesting unit that is attached to a traveling unit that travels in a field and harvests ear stalks of the field, a threshing unit that threshes the ear stalks harvested by the harvesting unit, a discharge amount detection unit that detects a discharge amount of grains discharged from the threshing unit to the outside in accordance with collision of the grains, a measurement unit that measures a position of the traveling unit, and a transmission unit that transmits a measurement result of the measurement unit and a detection result of the discharge amount detection unit; a receiving unit that receives the measurement result and the detection result transmitted from the transmitting unit; and a discharge amount mapping unit that maps the discharge amount by associating the discharge amount with a cutting position of the ear and stalk corresponding to the discharge amount, based on the measurement result and the detection result received by the receiving unit.

The mapping system according to the present invention is characterized in that the combine harvester further includes: an ear and stalk conveying part which conveys the ear and stalk from the cutting part to the threshing device; a conveying speed detection unit for detecting the conveying speed of the corncob in the corncob conveying unit; and a discharge timing recording unit that records a detection timing of the discharge amount detection unit, wherein the transmission unit is configured to: and a discharge amount mapping unit that transmits the detection result of the transport speed detecting unit and the recording time of the discharge time recording unit, wherein the discharge amount mapping unit includes a cutting position determining unit that receives the measurement result of the positioning unit, the detection results of the discharge amount detecting unit and the transport speed detecting unit, and the recording time of the discharge time recording unit from the transmitting unit, and determines the cutting position based on the received measurement result of the positioning unit, the detection results of the discharge amount detecting unit and the transport speed detecting unit, and the recording time of the discharge time recording unit.

The mapping system according to the present invention is characterized in that the combine harvester further includes: a grain tank for storing grains threshed by the threshing device; an input amount detection unit which is disposed in the grain box and detects an input amount of grains based on collision of the grains input into the grain box; and an input time recording unit that records a detection time of the input amount detection unit, wherein the transmission unit is configured to: and a mapping system for transmitting a detection result of the input amount detection unit and a recording time of the input time recording unit, the mapping system further including: an input amount mapping unit that receives the measurement result of the positioning unit, the detection results of the conveying speed detection unit and the input amount detection unit, and the recording time of the input time recording unit from the transmission unit, and maps the input amount by associating the input amount with the cut position of the ear stalk corresponding to the input amount based on the received measurement result of the positioning unit, the detection results of the conveying speed detection unit and the input amount detection unit, and the recording time of the input time recording unit; and a synthesizing unit that synthesizes the maps created by the input amount mapping unit and the discharge amount mapping unit, respectively.

A mapping device according to the present invention is a mapping device for mapping a field based on information stored in a combine harvester, the combine harvester including: a harvesting unit which is mounted on a traveling unit traveling in a field and which harvests ear stems in the field; a threshing device for threshing the ear stalks cut by the cutting part; a discharge amount detection unit that detects a discharge amount of grains discharged from the threshing device to the outside in accordance with collision of the grains; a measurement unit that measures a position of the traveling unit; and a storage unit that stores a detection result of the discharge amount detection unit and a measurement result of the positioning unit, wherein the mapping device includes: an acquisition unit that acquires the detection result and the measurement result stored in the storage unit; and a discharge amount mapping unit that maps the discharge amount by associating the discharge amount with a cutting position of the ear and stalk corresponding to the discharge amount, based on the detection result and the measurement result acquired by the acquisition unit.

The mapping device according to the present invention is characterized in that the combine harvester further includes a transmitter that transmits the detection result and the measurement result stored in the storage unit, and the acquisition unit includes a receiver that receives the measurement result and the detection result transmitted from the transmitter.

A computer program according to the present invention is a computer program for causing a computer to function as a device for mapping a field based on information stored in a combine harvester, the computer program including: a harvesting unit which is mounted on a traveling unit traveling in a field and which harvests ear stems in the field; a threshing device for threshing the ear stalks cut by the cutting part; a discharge amount detection unit that detects a discharge amount of grains discharged from the threshing device to the outside in accordance with collision of the grains; a measurement unit that measures a position of the traveling unit; and a storage unit that stores a detection result of the discharge amount detection unit and a measurement result of the positioning unit, wherein the program causes a computer to function as an acquisition unit that acquires the detection result and the measurement result stored in the storage unit, and a discharge amount mapping unit that maps the discharge amount by associating the discharge amount with a cutting position of an ear stalk corresponding to the discharge amount based on the detection result and the measurement result acquired by the acquisition unit.

In the present invention, the discharge amount of grain and the cutting position of ear and stalk corresponding to the discharge amount are mapped in correspondence. The user can confirm the image of the field on which the discharge amount is mapped.

In the present invention, the cutting position is determined based on the position of the traveling part, the conveying speed of the cut ear straw, and the discharge timing of the grain. For example, the time of harvesting the ear and stalk is calculated based on the time of discharging the grain, the conveying speed of the ear and stalk, and the position of the time of harvesting the ear and stalk, that is, the harvesting position is determined.

In the present invention, a map of the input amount and a map of the discharge amount are synthesized by mapping the input amount of grains and the cutting positions of ear stems corresponding to the input amount in a corresponding relationship. The user can reflect the result of the synthesis on the setting of the combine harvester.

Effects of the invention

In the mapping system, the mapping device, and the computer program according to the present invention, the discharge amount of grain is mapped in correspondence with the cutting position of the ear stem corresponding to the discharge amount. The user can confirm the image of the mapped field, and when the combine harvester is used next time, the discharge amount can be reflected in the setting of, for example, the angle of the coarse screen or the dust valve, the air volume of the winnower, and the like.

Drawings

Fig. 1 is an external perspective view of a combine harvester of the mapping system according to embodiment 1.

Fig. 2 is a side sectional view schematically showing the internal structure of the threshing device.

Fig. 3 is a longitudinal section view schematically showing a grain tank.

Fig. 4 is a perspective view schematically showing the inside of a cab of the combine harvester.

Fig. 5 is a sectional view schematically showing a transmission mechanism that transmits the driving force of the engine.

Fig. 6 is a sectional view of the transmission mechanism in a state where the first transmission cylinder is coupled to the second gear.

Fig. 7 is a sectional view of the transmission mechanism in a state where the first transmission cylinder is coupled to the first gear.

Fig. 8 is a sectional view of the transmission mechanism with the first transmission cylinder in the neutral position.

Fig. 9 is a block diagram showing a discharge amount mapping system including a combine and a server.

Fig. 10 is a flowchart illustrating the loss amount data collection and transmission process of the control unit.

Fig. 11 is a flowchart for explaining the loss amount mapping process of the server.

Fig. 12 is a diagram showing an example of the loss map.

Fig. 13 is a flowchart for explaining the input amount data collection and transmission processing of the control unit of the mapping system according to embodiment 2.

Fig. 14 is a flowchart for explaining the input amount mapping process and the map synthesizing process of the server.

Fig. 15 is a diagram showing an example of the input amount map.

Fig. 16 is a diagram showing an example of a synthesis map.

Fig. 17 is a block diagram showing a terminal and a server connected via a network in the mapping system according to embodiment 3.

Detailed Description

(embodiment mode 1)

The present invention will be described below with reference to the drawings showing the mapping system according to embodiment 1. Fig. 1 is an external perspective view of a combine harvester of the mapping system.

In the drawing, reference numeral 1 denotes a traveling crawler (traveling unit), and a machine body 9 is provided above the traveling crawler 1. A threshing device 2 is provided above the machine body 9. A harvesting unit 3 is provided on the front side of the threshing device 2, and the harvesting unit 3 includes: a seedling dividing plate 3a for distinguishing the ear stalks which are cut and the ear stalks which are not cut; a cutting knife 3b for cutting the ear stalks; a grain lifter 3c for lifting up the ear and stalk; and a plurality of rakes 3d (ear stalk conveying sections) that convey the cut ear stalks. The tooth 3d is connected to a chain (not shown). The chain is formed in an oblong shape extending in the vertical direction, and both upper and lower end portions of the chain are supported by sprockets. The rake 3d is rotated by the rotation of the chain, thereby conveying the ear stalks upward. A tooth speed sensor 88 (see fig. 9) that detects the rotational speed of the tooth 3d is provided near the chain connected to the tooth 3 d. The tooth speed sensor 88 includes, for example, a hall element.

A grain box 4 for accommodating grains is provided on the right side of the threshing device 2, and a feed chain 5 (ear stalk conveying unit) for conveying ear stalks and being long in the front-rear direction is provided on the left side of the threshing device 2. A gripping member 6 for gripping the ear and stalk is provided above the feed chain 5, and the gripping member 6 faces the feed chain 5.

An upper conveyor 7 is disposed near the front end of the feed chain 5. A conveying speed sensor 87 (see fig. 9) for detecting the conveying speed of the ear stalks by the feed chain 5 is provided in the vicinity of the feed chain 5. Further, a cylindrical discharge auger 4a for discharging grains from the grain tank 4 is attached to the grain tank 4, and a cab 8 is provided on the front side of the grain tank 4.

The machine body 9 is driven by driving the traveling crawler 1. The ear stalks are taken into the cutting part 3 by the running of the machine body 9 and are cut. The cut ear stalks are conveyed to the threshing device 2 by the upper conveyor 7, the feed chain 5, and the holding member 6, and are threshed in the threshing device 2.

Fig. 2 is a side sectional view schematically showing the internal structure of the threshing device 2. As shown in fig. 2, a threshing chamber 10 for threshing the ear stalks is provided at the front upper portion of the threshing device 2. In the threshing chamber 10, a cylindrical threshing cylinder 11 having an axial length direction in the front-rear direction is pivotally mounted, and the threshing cylinder 11 is capable of rotating around an axis. The threshing teeth 12, … … 12 are arranged in a spiral shape on the circumferential surface of the threshing cylinder 11. A wave screen 15 is disposed below the threshing cylinder 11, and the wave screen 15 kneads the stalks in cooperation with the threshing teeth 12, … … 12. The threshing cylinder 11 is rotated by a driving force of an engine 40 described later to thresh the ear and straw.

Four dust sending valves 10a, 10a are provided on the upper wall of the threshing chamber 10 so as to be arranged in the front-rear direction, and the dust sending valves 10a adjust the amounts of stalks and grains sent out to the rear part of the threshing chamber 10.

The treatment chamber 13 is connected to the rear of the threshing chamber 10. In the processing chamber 13, a cylindrical processing cylinder 13b having an axial length direction in the front-rear direction is pivotally mounted, and the processing cylinder 13b is capable of rotating around an axis. The plurality of threshing teeth 13c, … …, 13c are arranged in a spiral shape on the circumferential surface of the treatment cylinder 13 b. A treatment net 13d is disposed below the treatment cylinder 13b, and the treatment net 13d kneads the stalks in cooperation with the threshing teeth 13c, … …, 13 c. The treatment drum 13b is rotated by the driving force of the engine 40, whereby the grains are separated from the stalks and the grains fed out from the threshing chamber 10. A discharge port 13e is provided below the processing chamber 13.

Four treatment cylinder valves 13a, 13a are provided on the upper wall of the treatment chamber 13 so as to be arranged in the front-rear direction, and the treatment cylinder valves 13a, 13a adjust the amount of stalks and grains to be fed to the rear of the treatment chamber 13.

A swing screen device 16 for screening grains and stalks is provided under the wave screen 15. The swing screen device 16 includes: a swing screening disk 17 which performs specific gravity screening while homogenizing grains and stalks; a coarse screen 18 which is provided on the rear side of the swing screen tray 17 and performs coarse screening of grains and stalks; and a platform type straw shaker 19 provided at the rear side of the coarse screen 18 for dropping down grains mixed into the stalks. The flatbed document jogger 19 has a plurality of through holes not shown. A swing arm 21 is connected to a front portion of the swing screen tray 17. The swing arm 21 is configured to swing back and forth. The swing of the swing arm 21 swings the swing sifting device 16, thereby sifting the stalks and grains.

Swing sieving mechanism 16 also possesses cereal grain sieve 20, this cereal grain sieve 20 set up in the downside of coarse screen 18 carries out the fine screening to cereal grain and stem stalk. An first grade grain plate 22 is provided below the grain sieve 20, the front of the first grade grain plate 22 is inclined downward, and a first grade screw conveyor 23 is provided on the front side of the first grade grain plate 22.

The first-class screw conveyor 23 takes in grains sliding down from the first-class grain plate 22 and conveys and supplies the grains to the grain tank 4. An inlet 4b is provided on a side surface of the grain tank 4, and grains are put into the grain tank 4 through the inlet 4 b. A feed sensor 4c (see fig. 3) having a piezoelectric element is provided in the grain tank 4. The inlet sensor 4c detects the flow rate of the grain based on the impact force of the grain. The inlet sensor 4c constitutes an input amount detecting unit.

An inclined plate 24 inclined downward toward the rear is connected to the rear of the first grain plate 22. The grain plate 25 inclined downward toward the front is connected to the rear end of the inclined plate 24. A second crop screw conveyor 26 for conveying stalks and grains is provided above the joint between the second crop plate 25 and the inclined plate 24.

The dropped matter dropped down from the through hole of the platform document jogger 19 to the inclined plate 24 or the two-piece grain plate 25 slides down toward the two-piece screw conveyor 26. The fallen objects are conveyed to the processing drum 14 provided on the left side of the threshing cylinder 11 by the second-class screw conveyor 26, and are threshed by the processing drum 14.

A grain blower 27 for blowing air is provided in a position forward of the first-class screw conveyor 23 and below the swing screen tray 17. The wind generated by the blowing operation of the winnowing machine 27 travels rearward. A flow regulating plate 28 for sending air upward is disposed between the winnower 27 and the first-class screw conveyor 23.

The channel plate 36 is connected to the rear end of the grain plate 25. A lower suction hood 30 is provided above the passage plate 36. Between the lower suction cover 30 and the passage plate 36 is a discharge passage 37 for discharging dust.

An upper suction hood 31 is provided above the lower suction hood 30. An axial flow fan 32 for sucking and discharging the stalks is disposed between the upper suction hood 31 and the lower suction hood 30. A dust discharge port 33 is provided behind the axial flow fan 32. The airflow generated by the operation of the winnowing machine 27 is rectified by the rectifying plate 28, and then passes through the swing sifting device 16 to reach the dust discharge port 33 and the discharge passage 37. Grains are discharged from the dust discharge port 33 and the discharge passage 37.

A loss sensor 34a (discharge amount detector) including a piezoelectric element is provided below the rear end of the processing chamber 13. The grain discharged from the processing chamber 13 is in contact with the loss sensor 34a, and a voltage signal is output from the loss sensor 34 a. A threshing cylinder loss monitor (not shown) of the display unit 83 described later is turned on based on the output voltage signal.

A downward flow guide groove 35 is provided below the processing chamber 13 on the upper side of the upper suction hood 31, and the front of the downward flow guide groove 35 is inclined downward. The processed matter (grains, stalks, etc.) kneaded by the processing net 13d of the processing chamber 13 and dropped downward from the processing net 13d drops to the coarse screen 18 or the flat document sorter 19. The discharge from the rear end portion of the processing net 13d slides down the downward flow guide groove 35 to the flatbed document jogger 19.

In embodiment 1, a loss sensor 34b (discharge amount detecting unit) for detecting a discharge amount (loss amount) of grains discharged to the outside is provided behind the flatbed document jogger 19 and in front of the discharge passage 37, at a position rearward of the second-class screw conveyor 26. The laminar dust and grains passing through the coarse screen 18 and the platen scanner 19 collide with the loss sensor 34 b.

The loss sensor 34b includes a piezoelectric element, and outputs a voltage signal from the loss sensor 34b in response to the collision of the grains. A swing loss monitor (not shown) of the display unit 83 described later is turned on based on the output voltage signal.

Fig. 3 is a longitudinal section view schematically showing the grain tank 4. As shown in fig. 3, a rectangular vane plate 23b is provided on a shaft portion 23c at the upper end of the first-class screw conveyor 23. The vane plate 23b protrudes in the radial direction with the shaft portion 23c as a center. The vane plate 23b rotates in synchronization with the first-class screw conveyor 23.

The shaft portion 23c and the vane plate 23b are accommodated in the housing 140. The housing 140 includes a side surface 141 that covers the periphery of the shaft portion 23c and the vane plate 23 b. The side surface 141 faces the side surface of the grain tank 4 with the shaft portion 23c and the vane plate 23b in between.

An inlet 4b is provided on the side of the grain tank 4. The vane plate 23b faces the inlet 4 b.

Grain falling downwardly from the grain screen 20 to a first grade grain plate 22 slides down toward the first grade screw conveyor 23. The falling grains are conveyed by a first-class screw conveyor 23. Centrifugal force acts on the grains to cause the grains to rise along the outer periphery of the first-class screw conveyor 23. The blade plate 23b pushes out the grain toward the inlet 4 b.

As shown in fig. 3, a plurality of push switches 4e, … … 4e are provided below the inlet 4b in a vertically aligned manner. As the grains are stored in the grain box 4, the stored grains are sequentially pushed from the lower side by the push switch 4 e. The pressed push switch 4e outputs a signal, and based on the signal, a box monitor of a display unit 83 (see fig. 4) to be described later is turned on.

An inlet sensor 4c for detecting an impact value of grain introduced from the inlet 4b is disposed in the grain tank 4. The supporting member 4d is suspended from the top surface of the grain tank 4, and the inlet sensor 4c is fixed to the supporting member 4 d.

The inlet sensor 4c is configured to: is located above the lower edge of the inlet 4 b. When the grain tank 4 is filled, the grain tank is located above the upper surface of the grains stored in the grain tank 4. In other words, the inlet sensor 4c is disposed at the upper and lower positions and the depth position where it does not enter the grain when the grain is filled.

As shown by the broken line arrows in fig. 3, the pushed-out grain moves obliquely upward due to the resultant force of the upward force received from the first-class screw conveyor 23 and the lateral force received from the paddle plate 23b and collides with the inlet sensor 4 c.

The grain is intermittently fed from the inlet 4b to the grain tank 4 by the rotation of the paddle plate 23 b. Each time the grain put in collides with the inlet sensor 4c, a voltage is output from the strain gauge, and the amount of grain is calculated by a control unit 90 (see fig. 9) described later based on the output voltage.

Fig. 4 is a perspective view schematically showing the inside of the cab 8 of the combine harvester. A steering wheel 81 and an operator's seat 82 are provided in the cab 8. The instrument panel 80 is provided on the left side of the driver seat 82.

The instrument panel 80 is provided with a main shift lever 84, a working clutch lever 85, operation switches, operation buttons, and the like. The main shift lever 84 is provided with a potentiometer (not shown) and detects each position indicating "forward", "neutral", and "reverse".

The main shift lever 84 includes a cut shift button 84a and an auxiliary shift button 84 b. By operating the cutting shift button 84a, the conveying speed of the feed chain 5 can be switched to the "normal speed" or the "high speed". By operating the sub-transmission button 84b, the speed of the crawler 1 can be switched to "high speed" or "low speed". The working clutch lever 85 is provided with a potentiometer (not shown) and detects each position of "cutting", "threshing", and "off".

A cut-off accelerator pedal 86 is provided at the right front of the driver seat 82. The transmission of the driving force from the HST to the cutting unit 3, which will be described later, is cut off by depressing the cutting accelerator pedal 86. In cab 8, a terminal 89 for connecting a storage medium (for example, a USB memory) 300 (see fig. 17) is provided. The user can store data stored in a storage unit 94 (see fig. 9) described later in the storage medium 300 by connecting the storage medium 300 to the terminal 89.

Fig. 5 is a sectional view schematically showing a transmission mechanism 100 that transmits the driving force of the engine 40. As shown in fig. 5, the transmission mechanism 100 includes a sorting drive shaft having pulleys 42a and 42b at both ends. A substantially constant driving force is transmitted from the engine 40 to one pulley 42a via a belt (not shown), and the screening drive shaft rotates around the shaft at a substantially constant rotational speed.

The other pulley 42b is connected to the swing arm via a belt (not shown). The rotation of the screening drive shaft is transmitted to the oscillating screening device via the oscillating arm.

A threshing cylinder drive shaft 46 is provided in a direction substantially orthogonal to the screening drive shaft. A first bevel gear 47 is provided at a middle portion of the screen drive shaft. A second bevel gear 48 that meshes with the first bevel gear 47 is provided at one end of the threshing cylinder drive shaft 46. A pulley 49 is provided at the other end of the threshing cylinder drive shaft 46. A belt (not shown) is wound around the pulley 49.

The rotation of the screen drive shaft is transmitted to the threshing cylinder drive shaft 46 via a first bevel gear 47 and a second bevel gear 48. The rotation of the threshing cylinder drive shaft 46 is transmitted to the threshing cylinder via the pulley 49 and the belt.

An electromagnetic threshing clutch (not shown) is provided in a power transmission path between the threshing cylinder drive shaft 46 and the threshing cylinder 11. When the working clutch lever 85 is in the "threshing" or "harvesting" position, the threshing clutch is engaged, and when the working clutch lever 85 is in the "off" position, the threshing clutch is disengaged.

The transmission mechanism 100 includes an input shaft 50 substantially parallel to the screen drive shaft. A pulley 50a is provided at one end of the input shaft 50. A driving force is transmitted from HST41(Hydro Static Transmission) to the pulley 50a via a belt (not shown), and the input shaft 50 rotates around the shaft.

The driving force corresponding to the vehicle speed is transmitted from the HST41 to the input shaft 50. The traveling transmission (not shown) is coupled to the HST 41. A vehicle speed sensor (not shown) for detecting the speed of the traveling machine body is provided in the traveling transmission.

A first transmission gear 51 is provided at a middle portion of the input shaft 50, and a second transmission gear 52 is provided at the other end portion of the input shaft 50. A first speed change shaft 53 substantially parallel to the input shaft 50 and the screen drive shaft is provided between the input shaft 50 and the screen drive shaft. One or more key grooves 53a extending in the axial direction are provided on the outer periphery of the first shift shaft 53. A first gear 55 is provided at one end of the first transmission shaft 53 via a bearing 54. A second gear 57 is provided at the other end of the first transmission shaft 53 via a bearing 56. Regarding the number of teeth of the first gear 55, the first gear 55 meshes with the first transmission gear 51, and the second gear 57 meshes with the second transmission gear 52. The gear ratio of the first gear 55 and the first transmission gear 51 is smaller than the gear ratio of the second gear 57 and the second transmission gear 52.

A first cylinder 58 that is slidable in the axial direction is fitted to the outside of the first transmission shaft 53 between the first gear 55 and the second gear 57. A key 58a is provided on an inner peripheral portion of the first transmission cylinder 58, and the key 58a is inserted into the key groove 53 a. Electromagnets are provided on the first gear 55, the second gear 57, and the first transmission cylinder 58.

For example, when the "high speed" is selected by operating the cutting shift button, a current is supplied to the electromagnet, and the first transmission cylinder 58 is moved toward the first gear 55 and coupled to the first gear 55. The rotation of the input shaft 50 is transmitted to the first transmission shaft 53 via the first transmission gear 51, the first gear 55, and the first transmission cylinder 58.

For example, when the "normal" is selected by operating the cutting shift button, a current is supplied to the electromagnet, and the first transmission cylinder 58 is moved toward the second gear 57 and coupled to the second gear 57. The rotation of the input shaft 50 is transmitted to the first transmission shaft 53 via the second transmission gear 52, the second gear 57, and the first transmission cylinder 58.

Under predetermined conditions described later, the first transmission cylinder 58 is disposed in the middle (neutral position) between the first gear 55 and the second gear 57 by supplying a current to the electromagnet. In the neutral position, the first cylinder 58 is not coupled to the first gear 55 and the second gear 57, and the rotation of the input shaft 50 is not transmitted to the first transmission shaft 53. Fig. 5 shows a state in which the first transmission cylinder 58 is disposed at the neutral position.

A second transmission shaft 60 is provided on an extension of the axial center of the first transmission shaft 53. One or more key grooves 60a extending in the axial direction are provided on the outer periphery of the second shift shaft 60. One end of the second shift shaft 60 is coupled to the other end of the first shift shaft 53. A third gear 63 and a fourth gear 64 are provided at intermediate portions of the second transmission shaft 60 via

bearings

61 and 67. The third gear 63 and the fourth gear 64 are arranged in the axial direction. The third gear 63 is located closer to the first transmission shaft 53 than the fourth gear 64.

A second transmission cylinder 62 that is slidable in the axial direction is fitted to the outside of the second transmission shaft 60 between the third gear 63 and the fourth gear 64. A key 62a is provided on an inner peripheral portion of the second transmission cylinder 62, and the key 62a is inserted into the key groove 60 a. Electromagnets are provided in the third gear 63, the fourth gear 64, and the second transmission cylinder 62. By controlling the current flowing through the electromagnet, the second transmission cylinder 62 is engaged with the third gear 63 or the fourth gear 64, or the second transmission cylinder 62 is disposed between the third gear 63 and the fourth gear 64 (neutral position).

A fifth gear 65 is provided at the other end portion of the second transmission shaft 60. Between the fifth gear 65 and the fourth gear 64, a sixth gear 66 is provided to the second speed change shaft 60.

The transmission mechanism 100 includes a cutting transmission shaft 68 parallel to the second transmission shaft 60. The cutting drive shaft 68 transmits power to the cutting section 3. The cutting drive shaft 68 is provided with a torque limiter 68b and a cutting drive gear 68 a. The cutting transfer gear 68a meshes with the fifth gear 65. The rotation of the second transmission shaft 60 is transmitted to the cutting transmission shaft 68 and the cutting unit 3 via the fifth gear 65 and the cutting transmission gear 68 a.

An electromagnetic clutch (not shown) is provided in the power transmission path between the cutting transmission shaft 68 and the cutting section 3. When the working clutch lever 85 is in the "take-off" position, the take-off clutch is engaged, and when the working clutch lever 85 is in the "threshing" or "off" position, the take-off clutch is disengaged.

On the screen drive shaft, a third transmission gear 43 meshing with the third gear 63 and a fourth transmission gear 44 meshing with the fourth gear 64 are provided between the other pulley 42b and the first bevel gear 47. The gear ratio of the third transmission gear 43 and the third gear 63 is smaller than the gear ratio of the fourth transmission gear 44 and the fourth gear 64.

The fourth transmission gear 44 is located closer to the pulley 42b than the third transmission gear 43. A planetary gear mechanism 69 is provided between the fourth transmission gear 44 and the pulley 42 b. The planetary gear mechanism 69 includes an internal gear, a sun gear, and a planetary gear. Teeth that mesh with the sixth gear 66 are formed on the outer periphery of the internal gear. The sun gear is arranged on the screening driving shaft, and a planetary gear is arranged between the sun gear and the internal gear. A fifth transmission gear 45 is provided between the planetary gear mechanism 69 and the pulley 42 b.

The transmission mechanism 100 includes a first drive shaft 70 and a second drive shaft 74 parallel to the screen drive shaft. The first drive shaft 70 is located adjacent to the planetary gear mechanism 69. A first drive gear 71 that meshes with the fifth transmission gear 45 and a second drive gear 72 are provided on the first drive shaft 70. A third drive gear 73 that meshes with the second drive gear 72 is provided on the second drive shaft 74. The third drive gear 73 transmits power to the feed chain 5.

When the first transmission cylinder 58 is coupled to the first transmission gear 51 or the second transmission gear 52, the driving force from the HST41 and the driving force from the engine 40 form a resultant force in the planetary gear mechanism 69 and are transmitted to the feed chain 5.

Fig. 6 is a sectional view of the transmission mechanism in a state where the first transmission cylinder 58 is coupled to the second gear 57. The arrow in fig. 6 indicates the transmission direction of the driving force from the engine 40 or the HST 41. For example, when the working clutch lever 85 is at the "take-off position and the main shift lever 84 is positioned on the" forward "side, or when the take-off shift button is operated to change the" high speed "to the" standard ", the first transmission cylinder 58 moves toward the second gear 57 and is coupled to the second gear 57. In fig. 6, the second transmission cylinder 62 is arranged at a neutral position.

The driving force of the HST41 is input to the planetary gear mechanism 69 via the input shaft 50, the first shift shaft 53, and the second shift shaft 60. The driving force of the engine 40 is also input to the planetary gear mechanism 69. In the planetary gear mechanism 69, the driving forces of the HST41 and the engine 40 form a resultant force and are transmitted to the feed chain 5. Further, since the driving force of the HST41 corresponds to the vehicle speed and the driving force from the engine 40 is substantially constant, the feed chain 5 rotates according to the vehicle speed.

The driving force of the HST41 is transmitted to the cutting unit 3 via the input shaft 50, the first speed change shaft 53, the second speed change shaft 60, and the cutting transmission shaft 68. As described above, the driving force from the engine 40 is transmitted to the threshing cylinder and the swing arm.

Fig. 7 is a sectional view of the transmission mechanism in a case where the first transmission cylinder 58 is coupled to the first gear 55. The arrow in fig. 7 indicates the transmission direction of the driving force from the engine 40 or the HST 41. For example, when the main shift lever 84 is positioned on the "forward" side with the operating clutch lever 85 in the "take-off position and the take-off shift button is operated to change the" standard "to the" high speed ", the first cylinder 58 moves toward the first gear 55 and is coupled to the first gear 55.

In this case, the connection relationship and the power transmission path of the transmission mechanism 100 are substantially the same as those shown in fig. 6 except that the first transmission cylinder 58 is connected to the first gear 55. As described above, since the gear ratio of the first gear 55 and the first transmission gear 51 is smaller than the gear ratio of the second gear 57 and the second transmission gear 52, the cutting unit 3 is driven at a higher speed than the case shown in fig. 6.

Fig. 8 is a sectional view of the transmission mechanism with the first transmission cylinder 58 in the neutral position. The arrow in fig. 8 indicates the transmission direction of the driving force from the engine 40 or the HST 41. For example, when the working clutch lever 85 is in the "take-off position and the take-off accelerator pedal 86 is depressed, current is supplied to the electromagnet so that the first electric cylinder is placed at the neutral position and the second transmission cylinder 62 is coupled to the fourth gear 64.

In this case, the transmission of the driving force from the input shaft 50, i.e., the HST41, to the first transmission shaft 53 is interrupted, the driving force from the engine 40 is input to the take-off unit 3 via the torque limiter 68b, and the take-off unit 3 rotates at a substantially constant speed.

The driving force of the engine 40 is input to the planetary gear mechanism 69 via the second transmission shaft 60 and the sixth gear 66, and is transmitted to the feed chain 5 as a resultant force of the planetary gear mechanism 69 and the power from the screen drive shaft. The feed chain 5 rotates at a substantially constant speed.

When the cutting portion 3 rotates at a speed equal to or higher than a predetermined speed, when the cutting accelerator pedal is depressed, or when the rotational speed of the cutting portion 3 approaches the predetermined speed, the first transmission cylinder 58 is disposed at the neutral position, and the second transmission cylinder 62 is coupled to the third gear 63.

In this case, the connection relationship and the power transmission path of the transmission mechanism 100 are substantially the same as those shown in fig. 8 except that the second transmission cylinder 62 is connected to the third gear 63. As described above, the gear ratio of the third transmission gear 43 and the third gear 63 is smaller than the gear ratio of the fourth transmission gear 44 and the fourth gear 64, and therefore the cutting unit 3 is driven at a higher speed than the case shown in fig. 8.

Fig. 9 is a block diagram showing a discharge amount mapping system including a combine and a server 99. The combine harvester includes a control Unit 90, and the control Unit 90 includes a CPU91(Central Processing Unit), a RAM92(Random Access Memory), a ROM93(Read Only Memory), a storage Unit 94, an input interface (input I/F)96, an output interface (output I/F)97, and a transmission/reception Unit 95.

The CPU91 includes a timer 91 a. The storage unit 94 includes a nonvolatile memory, for example, an eprom (Erasable Programmable rom), an eeprom (electrically Erasable Programmable rom), or a flash memory. The storage unit 94 may be provided with a hard disk. The transmission/reception unit 95 includes, for example, an antenna and communicates with an external device.

The CPU91 reads a control program stored in the ROM93 into the RAM92, and executes processing described later in accordance with the control program.

The control unit 90 outputs a signal indicating predetermined information or video to the display unit 83 via the output interface 97. Output signals of the conveyance speed sensor 87 (ear/stalk conveyance speed detector), the tooth-raking speed sensor 88 (ear/stalk conveyance speed detector), the loss sensor 34b, and the inlet sensor 4c are input to the controller 90 via the input interface 96.

The control unit 90 communicates with the artificial satellite 98 via the transmission/reception unit 95 to acquire the positional information of the combine. The control unit 90 communicates with the server 99 via the transmission/reception unit 95, and transmits various data to the server 99.

The server 99 constitutes mapping means. The server 99 includes a CPU99a, a RAM99b, a ROM99c, a storage unit 99d, and a transmission/reception unit 99 e. The storage unit 99d includes a nonvolatile memory, such as an EPROM, an EEPROM, or a flash memory. The storage unit 99d may be provided with a hard disk. The transmission/reception unit 99e includes, for example, an antenna, and communicates with an external device. The CPU99a reads a control program stored in the ROM99c into the RAM99b and executes processing described later.

Fig. 10 is a flowchart illustrating the loss amount data collection and transmission process of the control unit 90. The CPU91 of the control unit 90 determines whether or not the cutting has been started (step S1). The CPU91 acquires a signal from the working clutch lever 85 and determines whether the working clutch lever 85 is in the "cut" position. When the working clutch lever 85 is not at the "cutting" position, that is, when cutting is not started (step S1: NO), the CPU91 returns the process to step S1.

When the working clutch lever 85 is at the "cut" position, that is, when the cutting has already been started (YES in step S1), the CPU91 starts counting time using the timer 91a (step S2). The CPU91 continuously executes the following processing as a subroutine: each time a predetermined time has elapsed, the position information of the combine is acquired from the satellite 98 via the transmitter/receiver 95 and stored in the storage 94, and the time is stored in the storage 94 with reference to the timer 91a (step S3). For example, the CPU91 stores the position information of the combine harvester in the storage unit 94 in association with the time every time a predetermined time (for example, every 0.5 seconds) has elapsed.

The CPU91 acquires the moving speed of the tooth 3d from the tooth speed sensor 88, stores it in the storage unit 94, and stores the time in the storage unit 94 with reference to the timer 91a (step S4). The CPU91 acquires the moving speed of the feed chain 5 from the conveying speed sensor 87, stores the moving speed in the storage unit 94, and stores the time in the storage unit 94 with reference to the timer 91a (step S5).

The CPU91 acquires the loss amount from the loss sensor 34b and stores it in the storage unit 94, and refers to the timer 91a and stores the time (hereinafter referred to as the discharge time) in the storage unit 94 (step S6). The CPU91 determines whether the clipping has ended (step S7). The CPU91 acquires a signal from the work clutch lever 85 to determine whether the work clutch lever 85 is in the "threshing" or "off" position. If the working clutch lever 85 is not in the "threshing" or "off" position, that is, if the mowing operation is not completed (step S7: NO), the CPU91 returns the process to step S4.

When the working clutch lever 85 is at the "threshing" or "off" position, that is, when the cutting is completed (YES in step S7), the CPU91 transmits various data (position information, the moving speed of the tine 3d, the moving speed of the feed chain 5, the amount of loss, and the time) stored in the storage unit 94 to the server 99 via the transmitter/receiver unit 95 (step S8), and the processing is completed.

Further, the control section 90 may sequentially transmit the position information acquired in steps S3 to S7, the moving speed of the tine 3d, the moving speed of the feed chain 5, the loss amount, and the time to the server 99 in this order.

In steps S4 and S5, the following processes may be continuously executed as a subroutine in the same manner as step S3: each time a predetermined time elapses, the tooth speed and the chain speed are stored in the storage unit 94 in association with the time. In this case, when the harvesting is not ended (step S7: NO), the CPU91 returns the process to step S4.

Fig. 11 is a flowchart for explaining the loss amount mapping process of the server 99. The storage 99d of the server 99 is preset with time (hereinafter referred to as threshing and screening time) required for threshing the ear stalks by the threshing cylinder 11 and screening the grains by the swing screening device 16, the size of the feed chain 5, and the sizes of the rack 3d and the chain connected to the rack 3 d.

The CPU99a of the server 99 waits until data is received from the combine harvester (step S11: NO). In the case where data is received from the combine harvester (step S11: YES), the CPU99a selects one item of data that needs to be processed from the received data (step S12). The CPU99a stores the received data in the storage unit 99 d.

The CPU99a refers to the storage unit 99d to acquire threshing and sorting times (step S13). The CPU99a calculates the conveyance time of the ear/stalk (hereinafter referred to as chain conveyance time) for the feed chain 5 (step S14). For example, the chain conveying time is calculated by dividing the moving speed of the feed chain 5 by the size of the feed chain 5. In this case, the time obtained by subtracting the threshing and sorting time from the discharge time (hereinafter referred to as the time immediately before threshing) may be calculated to determine the moving speed of the feed chain 5 corresponding to the time immediately before threshing, and the determined moving speed may be used.

The CPU calculates the conveyance time of the ear bar (hereinafter referred to as the rack conveyance time) for the rack 3d (step S15). For example, the tooth feed time is calculated by dividing the moving speed of the tooth 3d by the tooth 3d and the size of the chain connected to the tooth 3 d. In this case, the time obtained by subtracting the threshing time, the screening time, and the chain conveying time from the discharge time (hereinafter referred to as the time immediately before chain conveying) may be calculated to determine the moving speed of the rack 3d corresponding to the time immediately before chain conveying, and the determined moving speed may be used.

The CPU99a calculates the time at which the ear stem corresponding to the detected loss amount is cut (hereinafter referred to as cut time) (step S16). For example, the cutting time is calculated by subtracting the threshing time, the screening time, the chain conveying time, and the rack conveying time from the discharge time. The CPU99a refers to the position of the combine corresponding to the time and determines the position corresponding to the harvesting time (step S17). The CPU99a sets a loss amount so as to be associated with the decided clipping position, and executes a loss amount map (step S18).

The CPU99a determines whether the above-described processing is performed on all the received data (step S19). In the case where the above-described processing is not performed on all the received data (step S19: NO), the CPU99a returns the processing to step S12. When the above-described processing is performed for all the received data (YES in step S19), the loss amount mapping processing is ended. The CPU99a stores the result of the loss amount mapping process in the storage unit 99 d. Further, a hard disk may be provided, and the result of the loss amount mapping process may be stored in the hard disk. The server 99 can display a map (loss map) based on the result of the loss amount mapping process on the display screen. For example, the server 99 displays the loss map on the display screen after receiving the display instruction.

Examples of the display screen include a display screen provided in a server, and a display screen of a terminal (for example, a personal computer) used by a user connected via a network. The CPU99a may start the loss amount mapping process after receiving information from the combine harvester and a start instruction from the user. The CPU99a may also automatically perform the loss amount mapping process after receiving information from the combine harvester.

Fig. 12 is a diagram showing an example of the loss map. Fig. 12 shows the amount of loss of each part of the field. The high-density hatched portion indicates that the loss amount exceeds the first reference loss amount, the low-density hatched portion indicates that the loss amount is equal to or less than the first reference loss amount and equal to or more than the second reference loss amount (the second reference loss amount < the first reference loss amount), and the non-hatched portion indicates that the loss amount is less than the second reference loss amount.

The user can grasp the distribution state of the loss amount of the field by checking the loss map. Therefore, when a next fertilization plan or planting plan is created, the user can reflect the distribution of the loss amount on the plan. In addition, when the combine harvester is used next time, the user can reflect the distribution of the loss amount by setting the angle of the coarse screen or the dust feeding valve, the air volume of the winnower, and the like.

As described above, the moving speeds of the feed chain 5 and the tooth 3d may be substantially constant, and the moving speeds of the feed chain 5 and the tooth 3d may be changed according to the vehicle speed (see fig. 5 to 8). In embodiment 1, the moving speed of the feed chain 5 and the rake 3d is detected, and the cutting position is determined based on the detected moving speed. Therefore, the cutting position can be accurately determined.

(embodiment mode 2)

The present invention will be described below with reference to the drawings showing the mapping system according to embodiment 2. In the configuration according to embodiment 2, the same components as those in embodiment 1 are denoted by the same reference numerals, and detailed description thereof is omitted. Fig. 13 is a flowchart illustrating the input amount data collection and transmission process of the control unit 90.

The CPU91 of the control unit 90 determines whether or not the cutting has been started (step S21). The CPU91 acquires a signal from the work clutch lever 85 and determines whether the work clutch lever 85 is in the "cut" position. When the working clutch lever 85 is not at the "cutting" position, that is, when cutting is not started (step S21: NO), the CPU91 returns the process to step S21.

When the working clutch lever 85 is at the "cut" position, that is, when the cutting has started (YES in step S21), the CPU91 starts counting time using the timer 91a (step S22). The CPU91 continuously executes the following processing as a subroutine: the position information of the combine is acquired from the satellite 98 via the transceiver 95 and stored in the storage 94, and the time is stored in the storage 94 with reference to the timer 91a (step S23). For example, the CPU91 stores the position information of the combine harvester in the storage unit 94 in association with the time every time a predetermined time elapses (for example, every time 0.5 second elapses).

The CPU91 acquires the moving speed of the tooth 3d from the tooth speed sensor 88, stores it in the storage unit 94, and stores the time in the storage unit 94 with reference to the timer 91a (step S24). The CPU91 acquires the moving speed of the feed chain 5 from the conveying speed sensor 87, stores the moving speed in the storage unit 94, and stores the time in the storage unit 94 with reference to the timer 91a (step S25).

The CPU91 acquires the input amount from the input sensor 4c, stores the amount in the storage unit 94, and stores the time (hereinafter referred to as input time) in the storage unit 94 with reference to the timer 91a (step S26). The CPU91 determines whether the clipping has ended (step S27). The CPU91 acquires a signal from the work clutch lever 85 and determines whether the work clutch lever 85 is in the "threshing" or "off" position. If the working clutch lever 85 is not in the "threshing" or "off" position, that is, if the mowing operation is not completed (step S27: NO), the CPU91 returns the process to step S24.

When the working clutch lever 85 is at the "threshing" or "off" position, that is, when the cutting is completed (YES in step S27), the CPU91 transmits various data (the moving speed of the tine 3d, the moving speed of the feed chain 5, the input amount, and the time) stored in the storage unit 94 to the server 99 via the transmitter/receiver unit 95 (step S28), and then the processing is completed.

The controller 90 may sequentially transmit the moving speed of the tooth 3d, the moving speed of the feed chain 5, the throw-in amount, and the time acquired in steps S23 to S26 to the server 99.

In steps S24 and S25, the following processing may be continuously executed as a subroutine in the same manner as step S23: each time a predetermined time elapses, the tooth speed and the chain speed are stored in the storage unit 94 in association with the time. In this case, when the harvesting is not ended (step S27: NO), the CPU91 returns the process to step S24.

Fig. 14 is a flowchart for explaining the input amount mapping process and the map synthesizing process of the server 99.

The CPU99a of the server 99 waits until data is received from the combine harvester (step S31: NO). In the case where data is received from the combine harvester (step S31: YES), the CPU99a selects one item of data that needs to be processed from the received data (step S32).

The CPU99a refers to the storage unit 99d to acquire threshing and sorting times (step S33). The CPU99a calculates the chain conveying time (step S34). For example, the chain conveying time is calculated by dividing the moving speed of the feed chain 5 by the size of the feed chain 5. In this case, the moving speed of the feed chain 5 corresponding to the time immediately before threshing may be determined and the determined moving speed may be used.

The CPU99a calculates the tooth conveying time (step S35). For example, the tooth feed time is calculated by dividing the moving speed of the tooth 3d by the tooth 3d and the size of the chain connected to the tooth 3 d. At this time, the moving speed of the tooth 3d corresponding to the time immediately before the chain conveying may be obtained and the obtained moving speed may be used.

The CPU99a calculates the cutting time (step S36). For example, the cutting time is calculated by subtracting the threshing time, the screening time, the chain conveying time, and the rack conveying time from the discharge time. The CPU99a refers to the position of the combine corresponding to the time and determines the position corresponding to the harvesting time (step S37). The CPU99a sets the input amount so as to be associated with the decided clipping position and executes the input amount map (step S38).

The CPU99a determines whether the above-described processing is performed for all the received data (step S39). In the case where the above-described processing is not performed on all the received data (step S39: NO), the CPU99a returns the processing to step S32. When all the received data have been subjected to the above-described processing (YES in step S39), the map created by the input amount mapping processing (input amount map) and the loss map are combined (step S40), and the processing is terminated. The CPU99a stores the results of the input amount mapping process and the map synthesizing process in the storage unit 99 d. Further, a hard disk may be provided, and the results of the input amount mapping process and the map synthesizing process may be stored in the hard disk.

The CPU99a may start the input amount mapping process and the map synthesizing process after receiving information from the combine and a start instruction from a user. The CPU99a may automatically execute the input amount mapping process and the map synthesizing process after receiving the information from the combine harvester.

The server 99 can display the input amount map on the display screen. For example, the server 99 displays the input amount map on the display screen after receiving the display instruction. Fig. 15 is a diagram showing an example of the input amount map. Fig. 15 shows the input amount of each part of the field. The high-density hatched portion indicates that the input amount exceeds the first reference input amount, the low-density hatched portion indicates that the input amount is equal to or less than the first reference input amount and equal to or more than the second reference input amount (the second reference input amount < the first reference input amount), and the non-hatched portion indicates that the input amount is less than the second reference input amount.

The server 99 can combine the input amount map and the loss map and display the combined map (composite map) on the display screen. For example, the server 99 displays the synthesis map on the display screen after receiving the display instruction. Fig. 16 is a diagram showing an example of a synthesis map. For example, in the composite map, it is considered that the grain is not completely harvested and the grain amount discharged from the combine is large for a portion where the loss amount is equal to or larger than the first reference loss amount and the input amount is equal to or larger than the first reference input amount. Therefore, when the next cutting is performed on the part, the user can change the setting so as to insert more grains into the grain tank 4 by adjusting the angle of the coarse screen 18 or the dust feed valve 13a of the combine harvester or adjusting the air volume of the winnower 27.

For example, in the synthetic map, it is considered that the corncobs are more fallen in the portion where the loss amount is equal to or more than the first reference loss amount and the input amount is less than the second reference input amount. When the number of lodging is large, the posture or state of the ear stalks to be fed to the thresher 2 is disturbed, and as a result, the amount of grains discharged from the combine is considered to be large.

For example, when the fertilization is excessively performed during a period of partial elongation between the fourth and fifth sections of the rice, the occurrence probability of lodging increases. Therefore, in the field section described above, the user can perform a measure such as fertilization at a different time, without performing fertilization at a time when the field section is prone to lodging.

When the user confirms the composite map and makes the next fertilization plan or planting plan, the user can reflect the distribution of the loss amount and the input amount on the plan. In the next use of the combine harvester, the user can reflect the distribution of the loss amount and the input amount by setting the angles of the coarse screen 18 and the dust feed valve 13a, the air volume of the winnower 27, and the like.

In the above embodiment, the detection value of the loss sensor 34b is used, but the detection value of the loss sensor 34a may be used instead. In this case, the detection value of the loss sensor 34a is input to the control unit 90 via the input I/F96.

The detection amount of the loss sensor 34a easily reflects the threshing results of the threshing cylinder 11 and the processing cylinder 13b, and has a high correlation with the threshing performance of the ear/stalk (easy threshing performance). On the other hand, there is a high correlation between the loss sensor 34b and the ease of screening due to the amount of leaves of cornstalks. The above characteristics vary according to the characteristics of rice.

Therefore, when the loss map is created based on the amount of detection by the loss sensor 34a, the user mainly adjusts the dust feed valve 13 a. On the other hand, when the loss map is created based on the amount of detection by the loss sensor 34b, the user mainly adjusts the angle of the scalping screen 18 or the air volume of the winnower 27.

Further, the respective detection amounts of the loss sensor 34a and the loss sensor 34b may be detected, and a loss map may be created based on the two detection amounts. By creating two loss maps, it is possible to realize setting with higher accuracy. Further, the two loss maps may be synthesized with the input amount map.

(embodiment mode 3)

The present invention will be described below with reference to the drawings showing the mapping system according to embodiment 3. In the configuration according to embodiment 3, the same components as those in embodiment 1 or 2 are denoted by the same reference numerals, and detailed description thereof is omitted.

In the above-described embodiments 1 and 2, data is transmitted or received between the transmission/reception unit 95 of the control unit 90 and the transmission/reception unit 99e of the server 99, but the transmission/reception of data is not limited to this. For example, the storage medium 300 may be connected to the terminal 89 of the cab 8, data stored in the storage unit 94 of the control unit 90 may be stored in the storage medium 300, and the data stored in the storage medium 300 may be input to the server 99.

Fig. 17 is a block diagram showing a terminal 199 and a server 99 connected via a network. The server 99 is connected to the network 200 via a communication I/F99F. The terminal 199 is connected to the network 200. The terminal 199 includes a CPU199a, a RAM199b, a ROM199c, a storage 199d, a terminal 199e, and a communication interface (communication I/F) 199F. The storage unit 199d includes a nonvolatile memory, such as an EPROM, an EEPROM, or a flash memory. The storage unit 199d may be provided with a hard disk. The communication I/F199F is connected to the network 200.

The combine executes steps S1 to S7 and stores the position information, the moving speed of the rake 3d, the moving speed of the feed chain 5, the loss amount, and the time (hereinafter, these data are referred to as a first data set) in the storage unit 94. The moving speed of the tooth 3d, the moving speed of the feed chain 5, the throw-in amount, and the time (hereinafter, these data are referred to as a second data set) are stored in the storage unit 94 by executing steps S21 to S27.

The user can connect the storage medium 300 to the combine's terminal 89 and store the first data set and the second data set in the storage medium 300.

The user can connect the storage medium 300 storing the first data group and the second data group to the terminal 199e of the terminal 199 and input the first data group and the second data group to the server 99 via the network 200.

The CPU99a of the server 99 determines whether or not the first data group is acquired, and executes loss amount mapping processing (see fig. 11) when the first data group is acquired. Here, in the loss amount mapping process, the process in step S11 is replaced with whether or not the first data group is acquired. That is, the CPU99a waits until the first data group is acquired (step S11: NO), and proceeds the process to step S12 when the first data group is acquired (step S11: YES).

The CPU99a determines whether or not the second data group is acquired, and executes the input amount mapping process and the map synthesizing process (see fig. 14) when the second data group is acquired. Here, in the input amount mapping process and the map synthesizing process, the process in step S31 is replaced with whether or not the second data group is acquired. That is, the CPU99a waits until the second data group is acquired (step S31: NO), and proceeds the process to step S32 when the second data group is acquired (step S31: YES).

Further, after the start instruction is input from the terminal 199, the CPU99a may execute the loss amount mapping process or the input amount mapping process and the map synthesizing process.

It should be understood that: the embodiments disclosed herein are exemplary in all respects, and are not limited thereto. The technical features described in the embodiments may be combined with each other to make the scope of the present invention include all modifications in the claims and the scope equivalent to the scope of the claims.

Description of the reference numerals

1 track (running part)

2 threshing device

3 cutting part

3d tooth rack (ear stalk conveying part)

4 grain box

4c sensor (input amount detector)

5 feed chain (ear stalk conveying part)

34b loss sensor (discharge amount detector)

87 conveying speed sensor (ear stalk conveying speed detecting part)

88 tooth-raking speed sensor (ear stalk conveying speed detecting part)

90 control part

91a timer

91 CPU

94 storage part

95 transmitting/receiving unit

99 Server (mapping device)

99a CPU

99d storage unit

99e transmitting/receiving part

99F, 199F communication I/F

Claims

1. A mapping system, characterized in that,

the mapping system is provided with:

a combine harvester including a harvesting unit that is mounted on a traveling unit that travels in a field and that harvests ear stalks of the field, a threshing unit that threshes the ear stalks harvested by the harvesting unit, a discharge amount detection unit that detects a discharge amount of grains discharged from the threshing unit to the outside in accordance with collision of the grains, an input amount detection unit that detects an input amount of grains input into a grain tank, a positioning unit that measures a position of the traveling unit, and a transmission unit that transmits a measurement result of the positioning unit and a detection result of the discharge amount detection unit;

a receiving unit that receives the measurement result and the detection result transmitted from the transmitting unit;

a discharge amount mapping unit that maps the discharge amount by associating the discharge amount with a cutting position of the ear and stalk corresponding to the discharge amount, based on the measurement result and the detection result received by the receiving unit;

an input amount mapping unit that maps the input amount by associating the input amount with a cutting position of the ear stalk corresponding to the input amount based on a measurement result of the positioning unit and a detection result of the input amount detection unit; and

and a synthesizing unit that synthesizes the maps created by the input amount mapping unit and the output amount mapping unit, respectively.

2. The mapping system of claim 1,

the combine harvester further comprises:

an ear and stalk conveying part which conveys the ear and stalk from the cutting part to the threshing device;

a conveying speed detection unit for detecting the conveying speed of the corncob in the corncob conveying unit; and

a discharge timing recording unit that records a detection timing of the discharge amount detection unit;

the transmission unit is configured to: transmitting a detection result of the conveyance speed detecting section and a recording timing of the discharge timing recording section,

the discharge amount mapping unit includes a cutting position determining unit that receives the measurement result of the positioning unit, the detection results of the discharge amount detecting unit and the transport speed detecting unit, and the recording time of the discharge time recording unit from the transmitting unit, and determines the cutting position based on the received measurement result of the positioning unit, the detection results of the discharge amount detecting unit and the transport speed detecting unit, and the recording time of the discharge time recording unit.

3. The mapping system of claim 2,

the combine harvester further comprises a throw-in time recording part for recording the detection time of the throw-in amount detection part,

the grain box stores the grains threshed by the threshing device,

the input amount detecting part is arranged in the grain box and detects the input amount of the grains according to the collision of the grains input into the grain box,

the transmission unit is configured to: transmitting a detection result of the input amount detecting unit and a recording time of the input time recording unit,

the input amount mapping unit receives the measurement result of the positioning unit, the detection results of the conveying speed detection unit and the input amount detection unit, and the recording time of the input time recording unit from the transmission unit, and maps the input amount by associating the input amount with the cut position of the ear stalk corresponding to the input amount based on the received measurement result of the positioning unit, the detection results of the conveying speed detection unit and the input amount detection unit, and the recording time of the input time recording unit.

4. A mapping device that performs mapping for a field based on information stored in a combine harvester,

the mapping means is characterized in that the mapping means is,

the combine harvester is provided with:

a harvesting unit that is mounted on a traveling unit that travels in a field and harvests ear stems in the field;

a threshing device for threshing the ear stalks cut by the cutting part;

a discharge amount detection unit that detects a discharge amount of grains discharged from the threshing device to the outside in accordance with collision of the grains;

an input amount detection unit that detects an input amount of grains input into the grain box;

a measurement unit that measures a position of the traveling unit; and

a storage unit that stores a detection result of the discharge amount detection unit and a measurement result of the positioning unit,

the mapping device is provided with:

an acquisition unit that acquires the detection result and the measurement result stored in the storage unit; and

a discharge amount mapping unit that maps the discharge amount by associating the discharge amount with a cutting position of the ear and stalk corresponding to the discharge amount, based on the detection result and the measurement result acquired by the acquisition unit;

5. The mapping apparatus according to claim 4,

the combine harvester further comprises a transmission unit for transmitting the detection result and the measurement result stored in the storage unit,

the acquisition unit includes a reception unit that receives the measurement result and the detection result transmitted from the transmission unit.

6. A medium for storing a computer program for causing a computer to function as a means for performing mapping for a field based on information stored in a combine harvester,

the medium for storing a computer program is characterized in that,

the combine harvester is provided with:

a threshing device for threshing the ear stalks cut by the cutting part;

a measurement unit that measures a position of the traveling unit; and

the program causes a computer to function as an acquisition unit that acquires the detection result and the measurement result stored in the storage unit, a discharge amount mapping unit, a charge amount mapping unit, and a synthesis unit,

the discharge amount mapping unit maps the discharge amount by associating the discharge amount with a cutting position of the ear and stalk corresponding to the discharge amount based on the detection result and the measurement result acquired by the acquisition unit,

the input amount mapping unit maps the input amount by associating the input amount with the cutting position of the ear stalk corresponding to the input amount based on the measurement result of the positioning unit and the detection result of the input amount detecting unit,

the synthesizing unit synthesizes the maps created by the input amount mapping unit and the output amount mapping unit, respectively.