CN106124239A - Semen Maydis finger-clipping type seed metering device planting quality monitor station and planting quality detection method - Google Patents
Semen Maydis finger-clipping type seed metering device planting quality monitor station and planting quality detection method Download PDFInfo
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- CN106124239A CN106124239A CN201610797970.8A CN201610797970A CN106124239A CN 106124239 A CN106124239 A CN 106124239A CN 201610797970 A CN201610797970 A CN 201610797970A CN 106124239 A CN106124239 A CN 106124239A
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention belongs to agricultural machinery technological field, particularly to a kind of Semen Maydis finger-clipping type seed metering device planting quality monitor station and planting quality detection method.This monitor station includes the feed mechanism for seed support (1) for fixing finger-clipping type seed metering device (2), is used for fixing the grain conductor support (13) of grain conductor (14), slidably shaft coupling (3), decelerator (5), motor support base (6), motor (7), Hall element (12), photoelectric sensor (15), seed retaining plate (16) and control system；Grain conductor (14) is connected to, below the planting mouth of finger-clipping type seed metering device (2), grain conductor (14) be provided with photoelectric sensor (15), and the seed for every process sends a pulse signal.Volume of the present invention is little, easy to operate, cost is low, practical；Can detect the sowing indexs such as the qualified index of feed mechanism for seed, replay index, broadcast leakage index, monitoring finger-clipping type seed metering device is each in real time refers to the weight of folder, broadcast leakage situation.
Description
Technical field
The invention belongs to agricultural machinery technological field, particularly to a kind of Semen Maydis finger-clipping type seed metering device planting quality monitor station
And planting quality detection method.
Background technology
In today that mechanization of agriculture develops rapidly, seed of maize uses in a large number, makes agricultural production efficiency significantly improve.
The quality height of seed of maize decides the quality of seeding quality.The sowing uniformity is to affect one of crop yield very
Important factor, reasonable and uniform spacing in the rows can be only achieved high yield.Two seed distances are too near, affect the life of post emergent crops
Long；Two seeds, away from too far away, can waste again land resource；Production loss all can be caused under both of these case.On seeder
Feed mechanism for seed is that seed simple grain is entered the device broadcast in row, and it is the critical component affecting the crop uniformity.Set at seeder
Meter, manufacture and use during, measure the seeding effect of feed mechanism for seed quickly and easily and people can be allowed to predict afterwards emerging
Go out the uniformity of sowing, thus prior to seeding and go to adjust and improve the performance of seeder during sowing, improve yield.
Existing way is that seeder and feed mechanism for seed are fixed in laboratory table, and the seed that feed mechanism for seed is discharged drops to conveyer belt
On, from conveyer belt, then measure the distance between seed.In order to prevent seed from having movement on a moving belt, generally at conveyer belt
Upper need are bought oil and are clung seed.Existing test equipment is huge, takes up an area space very greatly, and is difficult to operation, the most only reflects at agricultural machinery
Just there are a system in the scientific research institutions such as fixed station or colleges and universities, are not suitable for spread.
Summary of the invention
It is an object of the invention to provide the finger-clipped maize sowing that a kind of volume is little, easy to operate, cost is low, practical
Device planting quality monitor station.
It is a further object to provide a kind of succinct quickly finger-clipped seed of maize planting quality detection side
Method.
To achieve these goals, the technical scheme is that
The present invention provides a kind of Semen Maydis finger-clipping type seed metering device planting quality monitor station, and this monitor station includes referring to folder for fixing
The feed mechanism for seed support 1 of formula feed mechanism for seed 2, for fix the grain conductor support 13 of grain conductor 14, slidably shaft coupling 3, decelerator 5,
Motor support base 6, motor 7, Hall element 12, photoelectric sensor 15, seed retaining plate 16 and control system；
Described finger-clipping type seed metering device 2 is fixed on feed mechanism for seed support 1 by supported at three point, and fixed form is suspension strut
Formula；
Seed retaining plate 16 is arranged at the top of finger-clipping type seed metering device 2, and is connected with the seed inlet of finger-clipping type seed metering device 2, leads kind
Pipe 14 is connected to below the planting mouth of finger-clipping type seed metering device 2, grain conductor 14 be provided with photoelectric sensor 15, for every process
Seed sends a pulse signal；
Motor 7 is fixed on motor support base 6, and the power output shaft of motor 7 passes sequentially through decelerator 5 and slidably shaft coupling
3 are connected with the feed shaft of finger-clipping type seed metering device 2；The decelerator 5 of the output shaft end of motor 7 is provided with Hall element 12,
And the position of Hall element 12 is relative with the radius of 15 degree clockwise of mouthful top edge of sowing along finger-clipping type seed metering device 2
Should；Slidably being provided with sliding handle 4 on shaft coupling 3, it is axially retractable that sliding handle 4 controls slidably shaft coupling 3；
Described control system includes PLC 8, motor driver 9, touch screen 10 and power supply 11, PLC 8 points
It is not connected with photoelectric sensor 15, Hall element 12, motor driver 9 and touch screen 10；Power supply 11 and control system, photoelectricity
Sensor 15, Hall element 12 and motor 7 connect.
The present invention provides a kind of planting quality detection method utilizing Semen Maydis finger-clipping type seed metering device planting quality monitor station, should
Method comprises the steps:
A, finger-clipping type seed metering device 2 to be detected is fixed on feed mechanism for seed support 1, seed retaining plate 16 and finger-clipping type seed metering device 2
Seed inlet connects；Grain conductor 14 is connected with the planting mouth of finger-clipping type seed metering device 2；Operation sliding handle 4, controls slidably shaft coupling
3 stretch out to the feed shaft of finger-clipping type seed metering device 2, make slidably shaft coupling 3 be connected with the feed shaft of finger-clipping type seed metering device 2；
B, inputted speed of drilling, type hole count, spacing in the rows and target component of sowing by touch screen 10；Finger-clipping type seed metering device 2
Seed inlet puts into seed, and seed retaining plate 16 prevents seed from overflowing from feed mechanism for seed seed inlet, starts motor 7, and motor 7 drives finger-clipped
Feed mechanism for seed 2 works, and seed is discharged by planting opening's edge grain conductor 14, and photoelectric sensor 15 is that the seed of every process sends an arteries and veins
Rushing signal, PLC 8 is according to the rotating speed of the state modulator motor 7 arranged, and reception is arranged on the photoelectric transfer on grain conductor 14
The pulse signal that sensor 15 sends；
The pulse signal that c, PLC 8 send according to the photoelectric sensor 15 received calculates finger-clipping type seed metering device 2
Qualified index, replay index and broadcast leakage index, and shown in real time by touch screen 10；Meanwhile, on touch screen 10 also
There is animation simulation during seeds fall, find out replay and broadcast leakage intuitively；
In d, step c, calculate the qualified index of finger-clipping type seed metering device 2, replay index and broadcast leakage index according to pulse signal
Method be:
D1) feed mechanism for seed rotating speed controls
For the qualified index of finger-clipping type seed metering device 2, replay index and leakage under the different spacing in the rows of detection and different speed of drilling
Broadcast index, it is necessary first to control motor 7, make finger-clipping type seed metering device 2 reach corresponding rotating speed, the calculating of finger-clipping type seed metering device 2 rotating speed n
Formula is:
N=5000v/3al
In formula, n be feed mechanism for seed rotating speed (r/min), v be speed of drilling (Km/h), l be type strain away from (cm), a is discharge plate
Type hole count；
D2) pulse signal that the photoelectric sensor 15 received according to PLC in step c 8 sends adds up adjacent kind
Interruption times n between son ', changed into Interruption the number interval of 0.1ms by contrast by the spacing in the rows interval in GB, obtain
Actual spacing in the rows respectively falls in the number on five big spacing in the rows intervals: n1’、n2’、n3’、n4' and n5’；
Spacing in the rows interval in GB changes into Interruption the number interval of 0.1ms, and method for transformation is: use interruption times
Interval replaces the type strain in GB away from interval, utilizes formulaN ' is interruption times；L is that two seeds fall
Distance on the ground, v is the speed that seeder advances；
D3) then it is calculated the qualified index of feed mechanism for seed 2, replay index and broadcast leakage index according to below equation:
N=n '1+n′2+n′3+n′4+n′5
Replay number n2=n '1
Passing number n1=N-2n2
Broadcast leakage number n0=n '3+2n′4+3n′5
Interval number N '=n '++2n′3+3n′4+4n′5
Qualified index
Replay index
Broadcast leakage index
Wherein, N is total spacing in the rows number, or total sowing number, and N ' is interval number, n1’、n2’、n3’、n4' and n5' it is
Actual spacing in the rows respectively falls in the number on five big spacing in the rows intervals, n0For broadcast leakage number, n1For passing number, n2For replay number, A is for closing
Grid index, D is replay index, and M is broadcast leakage index.
The present invention provides a kind of detection finger-clipping type seed metering device utilizing Semen Maydis finger-clipping type seed metering device planting quality monitor station every
Individual finger presss from both sides the method for heavily broadcast leakage, and the method includes:
A, the pulse signal sent according to Hall element 12 determine each position referring to folder of finger-clipping type seed metering device 2；
Control system sets PLC 8 and often sends 16000 pulses, and finger-clipping type seed metering device 2 rotates a circle, finger-clipped
Feed mechanism for seed 2 has 12 type holes, i.e. PLC 8 often to send 16000/12=1333 pulse finger-clipping type seed metering device 2 to turn over one
Refer to the position of folder, i.e. 30 ° central angles；Pulse is counted by the high-speed counter in PLC 8, determines with this
The each position referring to folder of finger-clipping type seed metering device 2；
The decelerator 5 of the output shaft end of motor 7 is provided with Hall element 12, with on finger-clipping type seed metering device 2
One refers to that folder is corresponding, and the position of Hall element 12 with along mouthful top edge clockwise 15 of sowing of finger-clipping type seed metering device 2
The radius of degree is corresponding, when first finger folder forwards this position to, and Hall element 12 is issued by a pulse signal, when
When PLC 8 receives the pulse signal that Hall element 12 sends, high-speed counter restarts counting from 0, often
1333 corresponding one of pulses refer to folder, determine each position referring to folder with this；
B, each refer to the pulse number that folder is corresponding in the range of add up the seed number of whereabouts, it is thus achieved that this refers to the heavily leakage of folder
Multicast data.
Compared with prior art, the beneficial effects of the present invention is:
1) volume is little, easy to operate, cost is low, practical；
2) by detecting the time interval between adjacent two pulses (the most adjacent two corn seeds), and then the row of calculating
Plant the sowing indexs such as the qualified index of device, replay index, broadcast leakage index, thus realize the function of feed mechanism for seed monitoring.
3) weight of finger-clipping type seed metering device each finger folder, broadcast leakage situation can be monitored in real time；
4) animation when can fall with simulation seeds, finds out replay and broadcast leakage intuitively；
5) a large amount of storages of experimental data are realized, it is simple to user searches experimental record.
Accompanying drawing explanation
Fig. 1 is the structural representation of Semen Maydis finger-clipping type seed metering device planting quality monitor station of the present invention.
Reference therein is:
1 feed mechanism for seed support 2 finger-clipping type seed metering device
3 slidably shaft coupling 4 sliding handles
5 decelerator 6 motor support bases
7 motor 8PLC controllers
9 motor driver 10 touch screens
11 power supply 12 Hall elements
13 grain conductor support 14 grain conductors
15 sensor 16 seed retaining plates
Detailed description of the invention
Below in conjunction with embodiment, the present invention is further described.
As it is shown in figure 1, the Semen Maydis finger-clipping type seed metering device planting quality monitor station of the present invention, including for fixing finger-clipped row
Plant the feed mechanism for seed support 1 of device 2, for fixing the grain conductor support 13 of grain conductor 14, slidably shaft coupling 3, decelerator 5, motor
Bearing 6, motor 7, Hall element 12, photoelectric sensor 15, seed retaining plate 16 and control system.
Described finger-clipping type seed metering device 2 is fixed on feed mechanism for seed support 1 by supported at three point, and fixed form is suspension strut
Formula, facilitates installation and the dismounting of finger-clipping type seed metering device 2.
Seed retaining plate 16 is arranged at the top of finger-clipping type seed metering device 2, and is connected with the seed inlet of finger-clipping type seed metering device 2.Lead kind
Pipe 14 is connected to below the planting mouth of finger-clipping type seed metering device 2, grain conductor 14 be provided with photoelectric sensor 15, for every process
Seed sends a pulse signal.
Motor 7 is fixed on motor support base 6, and the power output shaft of motor 7 passes sequentially through decelerator 5 and slidably shaft coupling
3 are connected with the feed shaft of finger-clipping type seed metering device 2.The decelerator 5 of the output shaft end of motor 7 is provided with Hall element 12,
And the position of Hall element 12 is relative with the radius of 15 degree clockwise of mouthful top edge of sowing along finger-clipping type seed metering device 2
Should.
Slidably being provided with sliding handle 4 on shaft coupling 3, it is axially retractable that sliding handle 4 controls slidably shaft coupling 3.
Described control system includes PLC 8, motor driver 9, touch screen 10 and power supply 11.PLC 8 points
It is not connected with photoelectric sensor 15, Hall element 12, motor driver 9 and touch screen 10；Power supply 11 and control system, photoelectricity
Sensor 15, Hall element 12 and motor 7 connect.
Described monitor station can connect printer, testing result is directly printed, can be to feed mechanism for seed during detection
Seeding situation carries out animation simulation intuitively.
The Semen Maydis finger-clipping type seed metering device planting quality detection method of the present invention, comprises the steps:
A, finger-clipping type seed metering device 2 to be detected is fixed on feed mechanism for seed support 1, seed retaining plate 16 and finger-clipping type seed metering device 2
Seed inlet connects；Grain conductor 14 is connected with the planting mouth of finger-clipping type seed metering device 2；Operation sliding handle 4, controls slidably shaft coupling
3 stretch out to the feed shaft of finger-clipping type seed metering device 2, make slidably shaft coupling 3 be connected with the feed shaft of finger-clipping type seed metering device 2.
B, inputted speed of drilling, type hole count, spacing in the rows and target component of sowing by touch screen 10；Finger-clipping type seed metering device 2
Seed inlet puts into seed, and seed retaining plate 16 prevents seed from overflowing from feed mechanism for seed seed inlet, starts motor 7, and motor 7 drives finger-clipped
Feed mechanism for seed 2 works, and seed is discharged by planting opening's edge grain conductor 14, and photoelectric sensor 15 is that the seed of every process sends an arteries and veins
Rushing signal, PLC 8 is according to the rotating speed of the state modulator motor 7 arranged, and reception is arranged on the photoelectric transfer on grain conductor 14
The pulse signal that sensor 15 sends.
The pulse signal that c, PLC 8 send according to the photoelectric sensor 15 received calculates finger-clipping type seed metering device 2
Qualified index, replay index and broadcast leakage index, and shown in real time by touch screen 10；Meanwhile, on touch screen 10 also
There is animation simulation during seeds fall, find out replay and broadcast leakage intuitively.
In d, step c, calculate the qualified index of finger-clipping type seed metering device 2, replay index and broadcast leakage index according to pulse signal
Method be:
D1) feed mechanism for seed rotating speed controls
For the qualified index of finger-clipping type seed metering device 2, replay index and leakage under the different spacing in the rows of detection and different speed of drilling
Broadcast index, it is necessary first to control motor 7, make finger-clipping type seed metering device 2 reach corresponding rotating speed, the calculating of finger-clipping type seed metering device 2 rotating speed n
Formula is:
N=5000v/3al
In formula, n be feed mechanism for seed rotating speed (r/min), v be speed of drilling (Km/h), l be type strain away from (cm), a is discharge plate
Type hole count.
D2) pulse signal that the photoelectric sensor 15 received according to PLC in step c 8 sends adds up adjacent kind
Interruption times n between son ', changed into Interruption the number interval of 0.1ms by contrast by the spacing in the rows interval in GB, obtain
Actual spacing in the rows respectively falls in the number on five big spacing in the rows intervals: n1’、n2’、n3’、n4' and n5’。
In the method for the qualified index of traditional detection feed mechanism for seed, replay index and broadcast leakage index, it is typically necessary measurement in real time
Spacing in the rows between actual seeding process neighboring seeds, measuring method is to measure spacing in the rows with formula L=T*v.The speed that seeder advances
Degree v is set in advance, and adjacent two interseminal time differences T are measured by intervalometer.Two seeds fall to the ground away from
The speed v advanced equal to seeder from L is multiplied by time difference T that the two seed falls to the ground.Further according to the strain divided in GB
N can be counted away from interval1’、n2’、n3’、n4' and n5’。n1’、n2’、n3’、n4' and n5' it is that actual spacing in the rows falls in different strains
Number in interval, i.e. falls in the seed number in each interval, wherein, n1’、n2’、n3’、n4' and n5' corresponding " single in GB
Grain (accurate) seeder test method " in 5 big spacing in the rows interval, the division methods interval to spacing in the rows is: elder generation is according to standard
0.1 times of spacing in the rows is divided into multiple interval, then these minizones are divided into 5 big intervals, be respectively 0 times of spacing in the rows to 0.5
Being first interval again, 0.5 times of spacing in the rows to 1.5 times is second interval, and 1.5 times of spacing in the rows to 2.5 times are the 3rd interval,
2.5 times of spacing in the rows to 3.5 times are the 4th interval, and 3.5 times of spacing in the rows arrive infinite greatly the 5th interval, and surveyed spacing in the rows falls the
One interval is for replaying, and it is normal for falling in second interval, falls at third and fourth, five intervals are broadcast leakage.
n′1=Σ ni(Xi∈ 0 to 0.5})
n′2=Σ ni(Xi∈ ＞ 0.5 to≤1.5})
n′3=∑ ni(Xi∈ ＞ 1.5 to≤2.5})
n′4=Σ ni(Xi∈ ＞ 2.5 to≤3.5})
n′5=∑ ni(Xi∈ { ＞ 3.5 to≤+ ∞ })
Then calculate according to GB formula, draw qualified index, replay index and broadcast leakage index, this detection mode
Need constantly to calculate the spacing in the rows between neighboring seeds during detection, more complicated.
The present invention employs the Interruption of 0.1ms during seeding quality detects, and is turned in the spacing in the rows interval in GB
Interruption the number interval of chemical conversion 0.1ms, method for transformation is: replace the type strain in GB away from district with interruption times interval
Between, utilize formulaN ' is interruption times, and L is that two seeds fall to the ground distance, and v is the speed that seeder advances.
The interval following table of the interruption converted:
In table, xiInterval away from the spacing in the rows divided for the type strain by 0.1 times, niFor xiSpacing in the rows number in spacing in the rows interval, Xi
For xiThe spacing in the rows variable that spacing in the rows is interval, n ' is interruption times, ni' it is occurrence number, i.e. corresponding nl’、n2’、n3’、n4' and n5' real
Border spacing in the rows respectively falls in the number on five big spacing in the rows intervals.
C) then it is calculated the qualified index of feed mechanism for seed 2, replay index and broadcast leakage index according to below equation:
N=n '1+n′2+n′3+n′4+n′5
Replay number n2=n '1
Platform lattice number n1=N-2n2
Broadcast leakage number n0=n '3+2n′4+3n′5
Interval number N '=n '2+2n′3+3n′4+4n′5
Qualified index
Replay index
Broadcast leakage index
Wherein, N is total spacing in the rows number, or total sowing number, and N ' is interval number, nl’、n2’、n3’、n4' and n5' it is
Actual spacing in the rows respectively falls in the number on five big spacing in the rows intervals, n0For broadcast leakage number, nlFor passing number, n2For replay number, A is for closing
Grid index, D is replay index, and M is broadcast leakage index.
The present invention provides a kind of and detects the method that each finger of finger-clipping type seed metering device presss from both sides heavily broadcast leakage:
A, the pulse signal sent according to Hall element 12 determine each position referring to folder of finger-clipping type seed metering device 2.
Control system sets PLC 8 and often sends 16000 pulses, and finger-clipping type seed metering device 2 rotates a circle, finger-clipped
Feed mechanism for seed 2 has 12 type holes, i.e. PLC often sends 16000/12=1333 pulse, and finger-clipping type seed metering device 2 turns over one and refers to folder
Position, i.e. 30 ° central angles.Pulse is counted by the high-speed counter in PLC 8, determines finger-clipped with this
The each position referring to folder of feed mechanism for seed 2.
The decelerator 5 of the output shaft end of motor 7 is provided with Hall element 12, with on finger-clipping type seed metering device 2
One refers to that folder is corresponding, and the position of Hall element 12 with along mouthful top edge clockwise 15 of sowing of finger-clipping type seed metering device 2
The radius of degree is corresponding, when first finger folder forwards this position to, and Hall element 12 is issued by a pulse signal, when
When PLC 8 receives the pulse signal that Hall element 12 sends, high-speed counter restarts counting from 0, often
Corresponding one of 1333 pulses refer to folder, and corresponding first of i.e. 1-1333 pulse refers to folder, 1334-2666 pulse correspondence second
Refer to folder, by that analogy, just may determine that each position referring to folder.
B, each refer to the pulse number that folder is corresponding in the range of add up the seed number of whereabouts, it is thus achieved that this refers to the heavily leakage of folder
Multicast data.
Such as, within the time period of 1-1333 pulse, do not have seeds fall if counted on, then first refers to folder leakage
Broadcasting, if counting on 1 seed, then first refers to that folder sowing is normal, if counting on 2 or more than 2, then first refers to folder
Replay.Each replay number referring to folder and broadcast leakage number in seeding process is detected by above method.
For each replay number referring to folder of detection and broadcast leakage number, need the pulse that seeds fall is triggered and feed mechanism for seed refer to press from both sides into
Row one_to_one corresponding, when the corresponding finger folder of a pulse, then this refers to press from both sides normal work, when there being two or more pulses pair
When answering one to refer to folder, then this refers to that folder is to replay, and when a finger folder does not has corresponding pulse to correspondence, then this refers to that folder is for broadcast leakage.
Refer to press from both sides one_to_one corresponding with feed mechanism for seed for realizing the pulse of the photoelectric sensor 15 that seeds fall triggers, need each
Refer to that folder is accurately positioned, accurately judge to refer to press from both sides the angle turned over.Each position referring to folder in finger-clipping type seed metering device 2 work process
Periodic cycle, when seeds fall triggers pulse, the finger folder corresponding with this pulsion phase is in a certain ad-hoc location, through one
In the cycle, when this refers to that folder comes back to this position, the sensor that its corresponding seed the most just triggers on grain conductor sends arteries and veins
Punching.In the ideal case, when next pulse sends, its corresponding finger folder also should be in this ad-hoc location.I.e. at this turn
Under speed, each of feed mechanism for seed refers to when folder is in this position, and a corresponding pulse all should be had to be triggered.For referring to
Clip feed mechanism for seed, the central angle of corresponding 30 ° of each finger folder, therefore, when detecting each heavily broadcast leakage referring to folder, refer to press from both sides corresponding position
It is equipped with the scope of 30 ° of central angles.Pulse corresponding in the range of these 30 ° of central angles all should belong to same and refer to folder.
Claims (3)
1. a Semen Maydis finger-clipping type seed metering device planting quality monitor station, it is characterised in that: this monitor station includes referring to folder for fixing
The feed mechanism for seed support (1) of formula feed mechanism for seed (2), it is used for fixing the grain conductor support (13) of grain conductor (14), slidably shaft coupling
(3), decelerator (5), motor support base (6), motor (7), Hall element (12), photoelectric sensor (15), seed retaining plate (16) and
Control system；
Described finger-clipping type seed metering device (2) is fixed on feed mechanism for seed support (1) by supported at three point, and fixed form is suspension strut
Formula；
Seed retaining plate (16) is arranged at the top of finger-clipping type seed metering device (2), and is connected with the seed inlet of finger-clipping type seed metering device (2), leads
Plant pipe (14) to be connected to, below the planting mouth of finger-clipping type seed metering device (2), grain conductor (14) be provided with photoelectric sensor (15), for
The seed of every process sends a pulse signal；
Motor (7) is fixed on motor support base (6), and the power output shaft of motor (7) passes sequentially through decelerator (5) and slidably joins
Axial organ (3) is connected with the feed shaft of finger-clipping type seed metering device (2)；The decelerator (5) of the output shaft end of motor (7) is provided with suddenly
That sensor (12), and the position of Hall element (12) is clockwise with mouthful top edge of sowing along finger-clipping type seed metering device (2)
(15) radius spent is corresponding；Slidably being provided with sliding handle (4) on shaft coupling (3), sliding handle (4) controls slidably
Shaft coupling (3) is axially retractable；
Described control system includes PLC (8), motor driver (9), touch screen (10) and power supply (11), PLC
(8) it is connected with photoelectric sensor (15), Hall element (12), motor driver (9) and touch screen (10) respectively；Power supply (11)
It is connected with control system, photoelectric sensor (15), Hall element (12) and motor (7).
2. utilize a planting quality detection method for Semen Maydis finger-clipping type seed metering device planting quality monitor station described in claim 1,
It is characterized in that: the method comprises the steps:
A, finger-clipping type seed metering device (2) to be detected is fixed on feed mechanism for seed support (1), seed retaining plate (16) and finger-clipping type seed metering device
(2) seed inlet connects；Grain conductor (14) is connected with the planting mouth of finger-clipping type seed metering device (2)；Operation sliding handle (4), controls
Slidably shaft coupling (3) stretches out to the feed shaft of finger-clipping type seed metering device (2), makes slidably shaft coupling (3) and finger-clipping type seed metering device
(2) feed shaft connects；
B, by touch screen (10) input speed of drilling, type hole count, spacing in the rows and target component of sowing；Finger-clipping type seed metering device (2)
Seed inlet puts into seed, and seed retaining plate (16) prevents seed from overflowing from feed mechanism for seed seed inlet, starts motor (7), and motor (7) drives
Finger-clipping type seed metering device (2) works, and seed is discharged by planting opening's edge grain conductor (14), and photoelectric sensor (15) is the kind of every process
Son sends a pulse signal, and PLC (8) is according to the rotating speed of the state modulator motor (7) arranged, and reception is arranged on and leads
Plant the pulse signal that the photoelectric sensor (15) on pipe (14) sends；
The pulse signal that c, PLC (8) send according to the photoelectric sensor (15) received calculates finger-clipping type seed metering device
(2) qualified index, replay index and broadcast leakage index, and shown in real time by touch screen (10)；Meanwhile, at touch screen
(10) animation simulation during upper also seeds fall, finds out replay and broadcast leakage intuitively；
In d, step c, calculate qualified index, replay index and the broadcast leakage index of finger-clipping type seed metering device (2) according to pulse signal
Method is:
D1) feed mechanism for seed rotating speed controls
For the qualified index of finger-clipping type seed metering device (2), replay index and broadcast leakage under the different spacing in the rows of detection and different speed of drilling
Index, it is necessary first to control motor (7), make finger-clipping type seed metering device (2) reach corresponding rotating speed, finger-clipping type seed metering device (2) rotating speed n's
Computing formula is:
N=5000v/3al
In formula, n be feed mechanism for seed rotating speed (r/min), v be speed of drilling (Km/h), l be type strain away from (cm), a is seeding dish-type hole
Number；
D2) pulse signal that the photoelectric sensor (15) received according to PLC in step c (8) sends adds up adjacent kind
Interruption times n between son ', changed into Interruption the number interval of 0.1ms by contrast by the spacing in the rows interval in GB, obtain
Actual spacing in the rows respectively falls in the number on five big spacing in the rows intervals: n1’、n2’、n3’、n4' and n5’；
Spacing in the rows interval in GB changes into Interruption the number interval of 0.1ms, and method for transformation is: interval by interruption times
Replace the type strain in GB away from interval, utilize formulaN ' is interruption times；L is that two seeds fall to the ground
Distance, v is the speed that seeder advances；
D3) then it is calculated the qualified index of feed mechanism for seed (2), replay index and broadcast leakage index according to below equation:
N=n '1+n′2+n′3+n′4+n′5
Replay number: n2=n '1
Passing number: n1=N-2n2
Broadcast leakage number: n0=n '3+2n′4+3n′5
Interval number: N '=n '2+2n′3+3n′4+4n′5
Qualified index:
Replay index:
Broadcast leakage index:
Wherein, N is total spacing in the rows number, or total sowing number, and N ' is interval number, n1’、n2’、n3’、n4' and n5' it is actual
Spacing in the rows respectively falls in the number on five big spacing in the rows intervals, n0For broadcast leakage number, n1For passing number, n2For replay number, A is qualified finger
Number, D is replay index, and M is broadcast leakage index.
3. one kind utilizes the detection finger-clipping type seed metering device of Semen Maydis finger-clipping type seed metering device planting quality monitor station described in claim 1 every
Individual finger presss from both sides the method for heavily broadcast leakage, it is characterised in that: the method includes:
A, the pulse signal sent according to Hall element (12) determine each position referring to folder of finger-clipping type seed metering device (2)；
Control system sets PLC (8) and often sends 16000 pulses, and finger-clipping type seed metering device (2) rotates a circle, finger-clipped
Feed mechanism for seed (2) has 12 type holes, i.e. PLC (8) often to send 16000/12=1333 pulse finger-clipping type seed metering device (2) turn
Cross a position referring to folder, i.e. 30 ° central angles；Pulse is counted by the high-speed counter in PLC (8), with
This determines each position referring to folder of finger-clipping type seed metering device (2)；
The decelerator (5) of the output shaft end of motor (7) is provided with Hall element (12), and on finger-clipping type seed metering device (2)
First finger folder corresponding, and the position of Hall element (12) with along mouthful top edge of sowing of finger-clipping type seed metering device (2)
The radius of 15 degree clockwise is corresponding, when first finger folder forwards this position to, and Hall element (12) is issued by an arteries and veins
Rushing signal, when PLC (8) receives the pulse signal that Hall element (12) sends, high-speed counter is from 0 weight
Newly starting counting up, corresponding one of every 1333 pulses refer to folder, determine each position referring to folder with this；
B, each refer to the pulse number that folder is corresponding in the range of add up the seed number of whereabouts, it is thus achieved that this refers to the heavily broadcast leakage number of folder
According to.
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