CN102353553A - Seed sowing device performance detection apparatus - Google Patents
Seed sowing device performance detection apparatus Download PDFInfo
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- CN102353553A CN102353553A CN2011101853188A CN201110185318A CN102353553A CN 102353553 A CN102353553 A CN 102353553A CN 2011101853188 A CN2011101853188 A CN 2011101853188A CN 201110185318 A CN201110185318 A CN 201110185318A CN 102353553 A CN102353553 A CN 102353553A
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Abstract
The invention provides a seed sowing device performance detection apparatus. The apparatus comprises that: a first light source emitter which is provided at a side of a seed sowing area and sends detection light to the seed sowing area; a first seed sowing information acquisition apparatus provided at another side of the seed sowing area, wherein the first seed sowing information acquisition apparatus comprises a plurality of photosensitive diodes which are arranged in a horizontal linear way, projection of the detection light emitted by the first light source emitter formed on the first seed sowing information acquisition apparatus is parallel with an arrangement direction of the photosensitive diodes, and the first seed sowing information acquisition apparatus is used for outputting a first level signal if any photosensitive diode receives the detection light and outputting a second level signal if any photosensitive diode does not receive the detection light; a performance parameter obtaining apparatus, wherein, according to the first level signal and the second level signal, the performance parameter obtaining apparatus calculates an actual time interval of seed falling, and obtains a seed sowing performance parameter according to the time interval, a preset theoretic granule distance and an equivalent forwarding speed. According to the invention, performance detection of a seed sowing device is realized, and the apparatus has the characteristics of a small volume, low cost and simple operation.
Description
Technical field
The present invention relates to the modern agriculture equipment technology, relate in particular to a kind of seed sowing device performance pick-up unit.
Background technology
Precision drill is the main means that realize the precise sowing technology, and the quality of its performance directly affects growth and the output of seeding quality and crops.And feed mechanism for seed is the core component of precision drill, and the feed mechanism for seed quality is directly restricting the performance of precision drill.Therefore the seed-metering performance that accurately detects feed mechanism for seed is a requisite link in the research and development process of seed sowing device performance evaluation and feed mechanism for seed.
The travelling belt that main employing scribbles grease in the prior art uses the machine vision mode to detect after clinging seed; Concrete steps comprise: adopt machine grease on the travelling belt; Feed mechanism for seed is fixed on the travelling belt top that scribbles grease that is kept in motion, and the seed that feed mechanism for seed is discharged is adhered on the travelling belt after falling on the travelling belt, with camera travelling belt is taken image; Import image into computer and carry out the machine vision processing, thereby realize detection seed sowing device performance.In this detection mode, the device structure of use is huge, and is with high costs, complicated operation, and the waste seed also is prone to pollute.
Summary of the invention
To the defective of prior art, the present invention provides a kind of seed sowing device performance pick-up unit.
Seed sowing device performance pick-up unit provided by the invention comprises:
Be arranged on first light emitted device seeding zone one side, that be used for sending detection light to said seeding zone;
Be arranged on the first seeding information collecting device of said seeding zone opposite side; Comprise a plurality of photodiodes that horizontal linearity is arranged, the said detection light that the said first light emitted device is launched formed projection on the said first seeding information collecting device is parallel with the orientation of said a plurality of photodiodes; The said first seeding information collecting device is used for if arbitrary said photodiode receives said detection light; Then export first level signal; If arbitrary said photodiode does not receive said detection light because of the seed in the said seeding zone of discharging blocks, then export second level signal; And the performance parameter deriving means is connected with the said first seeding information collecting device, is used for said first level signal and said second level signal according to said first seeding information collecting device output, calculates the real time interval of seeds fall; And according to said real time interval, and predefined theoretical grain distance and equivalent pace, obtain the seed-metering performance parameter.Seeding information photoelectricity harvester in the seed sowing device performance pick-up unit provided by the invention changes seeding information into electrical signal transfer through photoelectric effect gives the performance parameter deriving means; Human-computer interaction device is according to electric signal, theoretical grain distance and equivalent pace compute performance parameters; Realize the Performance Detection of feed mechanism for seed, this monitoring device volume is little, is easy to carry; Cost is low, and is simple to operate.
Seed sowing device performance pick-up unit provided by the invention cooperates with the performance parameter deriving means through the first light emitted device, the first seeding information collecting device; Calculate the performance parameter of feed mechanism for seed; Realize the Performance Detection of feed mechanism for seed, this pick-up unit volume is little, is easy to carry; Cost is low, and is simple to operate.
Description of drawings
Fig. 1 is the structural representation of seed sowing device performance pick-up unit of the present invention;
Fig. 2 detects the synoptic diagram of seed sowing device performance for using seed sowing device performance pick-up unit of the present invention;
Fig. 3 is the location diagram in another embodiment of the present invention first light emitted device 1, secondary light source transmitter 5, the first seeding information collecting device 2, the second seeding information collecting device 6 and seeding zone 4.
Embodiment
Further specify the technical scheme of the embodiment of the invention below in conjunction with accompanying drawing and specific embodiment.
Fig. 1 is the structural representation of seed sowing device performance pick-up unit of the present invention; As shown in Figure 1; This seed sowing device performance pick-up unit comprises: the first light emitted device 1, the first seeding information collecting device 2, performance parameter deriving means 3, the first seeding information collecting devices 2 are connected with performance parameter deriving means 3.Fig. 2 detects the synoptic diagram of seed sowing device performance for using seed sowing device performance pick-up unit of the present invention, and in conjunction with Fig. 1 and Fig. 2, the principle of work of seed sowing device performance pick-up unit of the present invention is concrete to be introduced as follows.
The first light emitted device 1 be arranged on seeding zone 4 a side, be used for to seeding zone 4 emitting detection light; Detecting light is the visible light with subtended angle, and this Ray Of Light 11 of Ray Of Light 10 and the rightmost side of the leftmost side of visible light with subtended angle is as shown in Figure 1; The first seeding information collecting device 2 is arranged on the opposite side in seeding zone 4, comprises a plurality of photodiodes that horizontal linearity is arranged, and the detection irradiate light that the first light emitted device 1 is launched is on the first seeding information collecting device 2; Because detecting light is the visible light with subtended angle; This has visible light formed straight line that is projected as on the first seeding information collecting device 2 of subtended angle, and this straight line is parallel with the orientation of a plurality of photodiodes, and the first seeding information collecting device 2 is used for if arbitrary photodiode receives detection light; Then export first level signal; If arbitrary photodiode does not receive detection light because of the seed in the seeding zone 4 of discharging blocks, then export second level signal, if the seeds fall of feed mechanism for seed 7 dischargings is in seeding zone 4; Seed will block the detection light that the first light emitted device 1 is launched; Then the photodiode of corresponding position can not receive detection light, and this photodiode ends, the first seeding information collecting device, 2 outputs, second level signal; If the seeds fall that does not have feed mechanism for seed 7 dischargings is in seeding zone 4; Then arbitrary photodiode can both receive detection light, and arbitrary photodiode all is in conducting state, and the first seeding information collecting device 2 is just exported first level signal; Performance parameter deriving means 3 is used for first level signal and second level signal according to 2 outputs of the first seeding information collecting device; Calculate the real time interval of seeds fall; And according to the real time interval; And predefined theoretical grain distance and equivalent pace, obtain the seed-metering performance parameter.Seeds fall is 4, the first seeding information collecting devices, 2 outputs, second level signal to the seeding zone, performance parameter deriving means 3 record moment t at this moment
1, application rate adds 1, t
2Constantly, the seed of feed mechanism for seed 7 dischargings falls again, and likewise, performance parameter deriving means 3 receives second level signal of the first seeding information collecting device, 2 outputs, notes the moment t of this moment
2, application rate adds 1 again, thus the real time of calculating seeds fall is spaced apart Δ t=t
2-t
1Performance parameter deriving means 3 calculates actual grain apart from D according to real time interval of delta t and predefined equivalent pace v
i(D
i=Δ t * v), judge that actual grain is apart from D
iWith predefined theoretical grain apart from D
rBetween relation, if actual grain is apart from D
iWith theoretical grain apart from D
rSatisfy formula: 0≤D
i≤0.5D
r, resowing phenomenon then appears, replay quantity n
2Add 1; If actual grain is apart from D
iWith theoretical grain apart from D
rSatisfy formula: 1.5D
r＜D
i≤2.5D
r, the broadcast leakage phenomenon then appears, broadcast leakage quantity n
0Add 1; If actual grain is apart from D
iWith theoretical grain apart from D
rSatisfy formula: 2.5D
r＜D
i≤3.5D
r, the broadcast leakage phenomenon then appears, broadcast leakage quantity n
0Add 2; If actual grain is apart from D
iWith theoretical grain apart from D
rSatisfy formula: D
i＞3.5D
r, the broadcast leakage phenomenon then appears, broadcast leakage quantity n
0Add 3.
Need to prove that when reality was used feed mechanism for seed 7 seedings, feed mechanism for seed 7 moved; Ground is static, and when using feed mechanism for seed 7 device for detecting performance to detect the performance of feed mechanism for seed 7, is fixed on feed mechanism for seed 7 on the position of a certain arbitrary height overhead; Grain distance for seed that feed mechanism for seed is described visually; Suppose that ground moves, just have the notion of an equivalent pace, equivalent pace is predefined; Need preset parameters to also have theoretical grain distance, theoretic seeds fall time interval Δ t
Theoretical, theoretical grain is apart from D
r, the relation between the equivalent pace v is: D
r=Δ t
Theoretical* v, and Δ t
TheoreticalNumber n with the hole that is used for seeding on w, the discharge plate
The holeBetween relation be: Δ t
Theoretical=1/ (w * n
The hole), so w, D
r, n
The holeAnd the relation between the v is: D
r=v/ (w * n
The hole), preestablish theoretical grain distance and equivalent pace according to this relation; Actual when using this seed sowing device performance pick-up unit to detect feed mechanism for seed 7 performances, can the first light emitted device 1 and the first seeding information collecting device 2 be packaged together constitutes photoelectric sensing apparatus 12 (as shown in Figure 2), and seeding regional 4 is positioned at the below of feed mechanism for seed 7.
Performance parameter deriving means 3 can also be according to the real time interval of delta t of seeds fall, predefined theoretical grain apart from D
rCalculate following seed-metering performance parameter with equivalent pace v: qualified sowing quantity, replay index, broadcast leakage index and grain are apart from qualified index.Concrete computing method are as shown in table 1:
Table 1
Need to prove the above-mentioned D of foundation when judging whether resowing phenomenon and broadcast leakage phenomenon to occur
iInterval range, and broadcast leakage quantity increases when the broadcast leakage phenomenon occurring number and D
iThe applicant's practical operation all of the present invention of the relation of interval range the time set, certainly do other regulation according to the demand of reality; Certainly, also can adopt method computation interval number except that the method shown in the table 1, grain apart from qualified index, replay index, broadcast leakage index.
Can know by above-mentioned technical scheme; Seed sowing device performance pick-up unit provided by the invention cooperates with the performance parameter deriving means through the first light emitted device, the first seeding information collecting device, calculates the performance parameter of feed mechanism for seed, realizes the Performance Detection of feed mechanism for seed; This pick-up unit volume is little; Be easy to carry, cost is low, and is simple to operate.
Fig. 3 is the location diagram in another embodiment of the present invention first light emitted device 1, secondary light source transmitter 5, the first seeding information collecting device 2, the second seeding information collecting device 6 and seeding zone 4; As shown in Figure 3; This pick-up unit also comprises secondary light source transmitter 5; Be arranged on seeding zone 4, with the first seeding information collecting device, 2 homonymies, and be positioned at the first seeding information collecting device, 2 one ends; The second seeding information collecting device 6, be arranged on seeding zone 4, with the first light emitted device, 1 homonymy; The first seeding information collecting device 2 and the second seeding information collecting device 6 are oppositely arranged; And the first light emitted device 1 is positioned at an end second seeding information collecting device 6, that be different from secondary light source transmitter 5; With aforesaid position relation the first light emitted device 1, secondary light source transmitter 5, the first seeding information collecting device 2, the second seeding information collecting device 6 are set; Can reach following effect: the detection light that the first light emitted device 1 is launched covers half Delta Region, a left side in seeding zone 4; Wherein a branch of visible light 8 of a branch of visible light 7 of the leftmost side, the rightmost side can be referring to shown in Figure 3; And the detection light that the first light emitted device 1 is launched all is radiated on the first seeding information collecting device 2; The detection light of secondary light source transmitter 5 emissions covers half Delta Region, the right side in seeding zone 4; Wherein a branch of visible light 9 of a branch of visible light 8 of the leftmost side, the rightmost side can be referring to shown in Figure 3, and the detection light that secondary light source transmitter 5 is launched all is radiated on the second seeding information collecting device 6.Like this; The non-blind area that both can guarantee seeding zone 4 detects; Thereby the distance that can reduce again between distance, secondary light source transmitter 5 and the second seeding information collecting device 6 between the first light emitted device 1 and the first seeding information collecting device 2 reduces the volume of seed sowing device performance pick-up unit, thereby can also reduce the cost of the number reduction seed sowing device performance pick-up unit of the light emitted device that needs and seeding information collecting device.
Wherein, preferred scheme is that the first light emitted device 1 is a word line property laser instrument with secondary light source transmitter 5.
Need to prove that when the applicant's actual design first seeding information collecting device 2 and the second seeding information collecting device 6, the spacing between the photodiode is 2mm; At this moment; When diameter fell less than the seed of 2mm, if seed drops in the spacing of photodiode, then arbitrary photodiode can both receive detection light; Feed mechanism for seed 7 device for detecting performance just can not detect seed and fall; So this moment, pick-up unit of the present invention was applicable to the Performance Detection of seeding diameter greater than the feed mechanism for seed 7 of 2mm, like corn, soybean etc.
On the basis of the foregoing description; Further; Performance parameter deriving means 3 is provided with display screen, is used to show seed-metering performance parameter, theoretical grain distance and equivalent pace, wherein; Performance parameter comprises: broadcast leakage quantity, replay quantity, broadcast leakage index, replay index, grain are apart from qualified index, qualified sowing quantity, and this display screen can also show application rate in real time.Wherein broadcast leakage quantity and replay quantity can show in real time; Owing to need the statistics of a period of time just can calculate broadcast leakage index, replay index, grain,, can not show in real time so could show these performance parameters after can only passing through the regular hour apart from qualified index, qualified sowing quantity.What applicant of the present invention adopted is LCDs, can certainly adopt the display screen of other types.
On the basis of the foregoing description, further, performance parameter deriving means 3 is provided with the module of warning that is used for knowing that according to the seed-metering performance parameter detecting testing result that broadcast leakage and/or replay take place is reported to the police.When feed mechanism for seed 7 broadcast leakages, be used to indicate the pilot lamp flicker of broadcast leakage phenomenon on the module of warning; When feed mechanism for seed 7 is replayed, be used to indicate the pilot lamp flicker of resowing phenomenon on the module of warning.Be convenient to the staff and in time learn broadcast leakage, rebroadcast information.
On the basis of the foregoing description, further, performance parameter deriving means 3 is provided with the memory module that is used to store the seed-metering performance parameter.This module can also be stored application rate.
On the basis of the foregoing description, further, performance parameter deriving means 3 is provided with the keyboard input module that is used to be provided with theoretical grain distance and equivalent pace.Through this keyboard input module, the relation that need satisfy according to aforesaid theoretical grain distance and equivalent pace is provided with this two parameters.
On the basis of the foregoing description, further, performance parameter deriving means 3 is provided with the seed-metering performance parameter transmission that is used for memory module is stored and is transferred to the data transmission module on the PC.This module also can be sent application rate and is transferred on the PC.
On the basis of the foregoing description, further, performance parameter deriving means 3 is provided with the startup module that is used for the log-on data transport module.
Actual when using seed sowing device performance pick-up unit of the present invention that the performance of feed mechanism for seed 7 is detected, concrete operating process is following: the seed sowing device performance pick-up unit is installed in feed mechanism for seed 7 belows, the SR in the load module that pushes button; Pick-up unit is in reset mode, and the confirming button in the load module that pushes button is provided with theoretical grain distance and equivalent pace with rise button, down button, and the initial value of theoretical grain distance is 280mm; The initial value of equivalence pace is 1m/s; Adopt to raise button and down button regulate theoretical grain apart from the time amplitude be 5mm, the amplitude when adopting rise button and down button to regulate equivalent pace is 0.05m/s, parameter has been set after; Confirming button on the load module once more pushes button; Preserve the parameter that is provided with, theoretical grain has been set after this parameter, press confirming button; Pick-up unit is in detected state, waits for first seeds fall.In the pick-up unit operational process; Suspend pick-up unit like needs; What can push button load module opens/stops button, opens/stop the pick-up unit after button is restarted time-out after staff's free time through pressing, and before suspending, continues on the basis of data the performance of feed mechanism for seed 7 is detected.In the time of need the performance parameter value of feed mechanism for seed 7 being transferred on the PC, performance parameter deriving means 3 be connected with PC, presses the function button that starts on the module again and get final product.
Through above description, can summary of benefits of the present invention is following:
1) be easy to carry, simple to operate.Pick-up unit is used for the detection of feed mechanism for seed seed-metering performance, only needs during use that the seed sowing device performance pick-up unit is fixed on the feed mechanism for seed below and gets final product, and volume is little, be easy to carry, and testing process only need be by associated button, and is simple to operation.
2) detect the principle science, measurement result is accurate.In the time interval of the adjacent seeds fall of detection device records, calculate grain apart from information according to equivalent pace, and calculate the performance parameter of feed mechanism for seed in view of the above.
3) cost of products is low, and market outlook are wide.Structure processing of the present invention is more convenient, installs easily, and during batch process, hardware cost is low, thereby greatly reduces the whole cost of instrument, and pick-up unit of the present invention can replace the feed mechanism for seed pick-up unit of existing complex and expensive, has vast market prospect.
What should explain at last is: above embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (9)
1. a seed sowing device performance pick-up unit is characterized in that, comprises
Be arranged on first light emitted device seeding zone one side, that be used for sending detection light to said seeding zone;
Be arranged on the first seeding information collecting device of said seeding zone opposite side; Comprise a plurality of photodiodes that horizontal linearity is arranged, the said detection light that the said first light emitted device is launched on the said first seeding information collecting device formed projection with a plurality of orientations of stating photodiode parallel; The said first seeding information collecting device is used for if arbitrary said photodiode receives said detection light; Then export first level signal; If arbitrary said photodiode does not receive said detection light because of the seed in the said seeding zone of discharging blocks, then export second level signal; And,
The performance parameter deriving means is connected with the said first seeding information collecting device, is used for said first level signal and said second level signal according to said first seeding information collecting device output, calculates the real time interval of seeds fall; And according to said real time interval, and predefined theoretical grain distance and equivalent pace, obtain the seed-metering performance parameter.
2. seed sowing device performance pick-up unit according to claim 1 is characterized in that, also comprises:
The secondary light source transmitter, be arranged on said seeding zone, with the said first seeding information collecting device homonymy, and be positioned at the said first seeding information collecting device, one end; And,
The second seeding information collecting device, be arranged on said seeding zone, with the said first light emitted device homonymy;
Said first seeding information collecting device and the said second seeding information collecting device are oppositely arranged, and the said first light emitted device is positioned at an end said second seeding information collecting device, that be different from said secondary light source transmitter.
3. seed sowing device performance pick-up unit according to claim 2 is characterized in that, said first light emitted device and said secondary light source transmitter are a word line property laser instrument.
4. according to claim 1 or 2 or 3 described seed sowing device performance pick-up units, it is characterized in that said performance parameter deriving means is provided with display screen.
5. according to claim 1 or 2 or 3 described seed sowing device performance pick-up units; It is characterized in that; Said performance parameter deriving means is provided with, and is used for the module of warning that the testing result of knowing generation broadcast leakage and/or replay according to said seed-metering performance parameter detecting is reported to the police.
6. according to claim 1 or 2 or 3 described seed sowing device performance pick-up units, it is characterized in that said performance parameter deriving means is provided with, and is used to store the memory module of said seed-metering performance parameter.
7. according to claim 1 or 2 or 3 described seed sowing device performance pick-up units, it is characterized in that said performance parameter deriving means is provided with, be used to be provided with the keyboard input module of said theoretical grain distance and said equivalent pace.
8. seed sowing device performance pick-up unit according to claim 6 is characterized in that, said performance parameter deriving means is provided with, and is used for the said seed-metering performance parameter transmission that said memory module is stored is transferred to the data transmission module on the PC.
9. seed sowing device performance pick-up unit according to claim 8 is characterized in that, said performance parameter deriving means is provided with, and is used to start the startup module of said data transmission module.
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|---|---|---|---|
| CN201110185318.8A CN102353553B (en) | 2011-07-01 | 2011-07-01 | Seed sowing device performance detection apparatus |
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| CN103120057A (en) * | 2013-01-28 | 2013-05-29 | 河南科技大学 | Miss-seeding detection device and method for corn precision seeder |
| CN105403425A (en) * | 2015-12-17 | 2016-03-16 | 安徽农业大学 | Monitoring system of rapeseed sowing quality |
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