CN105302013A - Adaptive seeding control method of multi-crop drill seeder - Google Patents
Adaptive seeding control method of multi-crop drill seeder Download PDFInfo
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- CN105302013A CN105302013A CN201410315801.7A CN201410315801A CN105302013A CN 105302013 A CN105302013 A CN 105302013A CN 201410315801 A CN201410315801 A CN 201410315801A CN 105302013 A CN105302013 A CN 105302013A
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Abstract
The present invention relates to an adaptive seeding control method of a multi-crop drill seeder belonging to the technical field of agricultural machine. A tractor of the seeder is provided with a revolution speed transducer. A seed sowing device is provided with a weighing transducer. The tractor is provided with an intelligent controller having a CPU. The CPU controls seeding according to the following steps: reading operation input parameters; driving the seed sowing device at a preset revolution speed to rotate and sow seeds; collecting the change value of the weighing transducer and calculating out a standardization seeding quality; establishing a relational expression of seeding quantity per mu Q (kilogram/mu) and average revolution speed n (revolution/minute) of land wheels; calculating out the actual measurement average revolution speed of the land wheels in the predetermined time length; calculating out the seeding quantity per mu, comparing whether the calculated seeding quantity per mu is less than the rated seeding quantity per mu or not, and performing amendment until the unit area seeding is completed; replacing the calculated seeding quantity per mu by utilizing the amended seeding quality per mu, and further amending until the unit area seeding is completed. The adaptive seeding control method of the multi-crop drill seeder adapts precious seeding of multi-crop sowing in drill, increases the utilization rate of machines and tools, and facilitates popularization of crop mechanical work.
Description
Technical field
The present invention relates to a kind of sowing control method, especially a kind of many crops drill for sowing in lines self-adaptation application rate control method, belongs to agricultural machinery technological field.
Background technology
Because the output of mechanization precise sowing than tradition sowing significantly improves, therefore precise sowing technology is popularized.According to the applicant understood, manually change sprocket wheel (or seed distributing groove) again after the normally artificial calculating amount of broadcasting of the tradition amount of broadcasting adjustment to regulate.Facts have proved, this mechanical type seeding apparatus is difficult to meet the demand that precise sowing regulates seeding rotating speed in real time, and seeder use land wheel get merit drive feed mechanism for seed (its typical structure see application number be 201310472023.8, name is called the Chinese patent application document of multifunctional rotary tillage combined seed and fertilizer drill), due to field straw and weeds large to driving wheel resistance, easy generation skidding, is therefore difficult to the regulation and control requirement meeting precise sowing.
Application number be 201010528094.1 and the Chinese patent application of 201020587294.X propose simultaneously and a kind ofly can carry out to the variable in rape seed process the agriculture operating system that accurately controls, this system manually can input the amount of broadcasting by button as required, then comprehensive computing is carried out according to the amount of broadcasting of input and the pace of facility, finally export the rotating speed of pulse to stepper motor controlling the amount of broadcasting to control, be arranged on sowing port as the photoelectric sensor broadcasting amount detecting device simultaneously, to the grain counting number of discharging seed, system calculates according to mass of 1000 kernel the amount of broadcasting and feeds back to main control chip again, form a closed loop feedback system.But, the demarcation of its feed mechanism for seed rotating speed must by manually carrying out repetition test to Seeding Uniformity and each row discharge capacity consistance, therefrom find out seeding stability of characteristics, meet linear relationship between the seeding rotating speed of seeding requirement and discharge capacity, again according to reference books such as agricultural machinery handbooks, calculate the relational expression of application rate and operating speed, feed mechanism for seed rotating speed.This rating test process wastes time and energy, complete armrest has moved, also need professional and technical personnel according to the relation between test data fitting variable, control system self can not be relied on complete fast, more cannot complete in the short time when changing seed wheel, crop seed type or soil regime and changing, thus can not meet the needs robbed sowing season and broadcast.
Summary of the invention
The object of the invention is to: the shortcoming existed for above-mentioned prior art, propose one automatically to complete various crop sowing at short notice and control---the relation of the effective gait of march of traction engine and feed mechanism for seed rotating speed when namely determining that various seed reaches specified every mu of application rate (thousand grams/acre), and then the many crops drill for sowing in lines self-adaptation controlling precisely sowing sows control method.
In order to reach above object, many crops drill for sowing in lines self-adaptation sowing control device basic technical scheme of the present invention is: the land wheel driven containing traction engine and feed mechanism for seed, described feed mechanism for seed has the drive motor be connected with its rotating shaft transmission, speed probe is equipped with in the contiguous land wheel side of frame of described traction engine, described feed mechanism for seed is equipped with LOAD CELLS, the intelligent controller containing CPU and operation input end also installed by described traction engine, the cpu signal input end of described intelligent controller connects described speed probe and LOAD CELLS respectively, the control output end of CPU described in the controlled termination of described drive motor, described CPU realizes sowing according to the following steps and controls:
The first step. every mu of specified application rate of read operation input end, demarcate duration, sowing fabric width and desired speed;
Second step. drive feed mechanism for seed to rotate sowing with desired speed;
3rd step. after scheduled duration, stop feed mechanism for seed rotating, gather the changing value of LOAD CELLS, calculate and demarcate flow rate, and then try to achieve feed mechanism for seed and often turn calculating flow rate;
4th step. based on the flow rate of feed mechanism for seed unit interval and the application rate equilibrium relationships of traction engine unit interval, draw every mu of application rate
(thousand grams/acre) and land wheel mean speed
the relational expression of (rev/min)
In formula
--every mu of application rate (thousand grams/acre)
--feed mechanism for seed often turns calculating flow rate (gram/turn)
--feed mechanism for seed rotating speed (rev/min)
--sowing fabric width (rice)
--ground wheel diameter (rice)
--land wheel mean speed (rev/min);
5th step. after entering farm work, drive feed mechanism for seed to rotate sowing with desired speed, and according to the data of speed probe, calculate the actual measurement mean speed of scheduled duration land wheel;
6th step. read the ground wheel diameter of input, show that every mu under land wheel actual measurement mean speed condition calculates application rate according to relational expression, and more whether be less than every mu of specified application rate, in this way then with the predetermined value speedup revision desired speed that goes forward one by one, as otherwise revise desired speed with predetermined value deceleration of going forward one by one;
7th step. repeat the 5th step and the 6th step, until complete unit area sowing;
8th step. complete unit area after planting, using the variable quantity of LOAD CELLS as effective unit area application rate, and revise application rate using it as every mu, replace every mu and calculate application rate;
9th step. when again entering farm work, revise application rate for more every mu and whether be less than every mu of specified application rate
, in this way then with the predetermined value speedup revision desired speed that goes forward one by one
, as otherwise slow down with predetermined value of going forward one by one and revise desired speed
, drive feed mechanism for seed to rotate sowing, until complete unit area sowing.
Like this, when seed variety or specified every mu of application rate change, automatically demarcation can be completed rapidly, carry out seeding operation, and after completing first time unit area sowing, automatically revise with every mu the desired speed that application rate constantly revises seeder, thus approach every mu of specified application rate very soon, realize precise sowing, and meet rob the demand broadcast.Further, after adopting the present invention, the precise sowing of many crops drilling can be adapted to, improve the utilization rate of facility, saved do mechanization operation cost, be conducive to the popularization of crop mechanical work.In addition, the present invention is applicable to the various edaphic conditions in the no matter north, south, can meet agricultural machinery and agronomy in conjunction with needs.
The present invention further improves: described land wheel is arranged on support one end, the other end of described support is hinged in frame, hinged place installs and makes land wheel have the torsion spring of the trend of landing, and the proximity switch in order to export the relative frame indexing signal of described support to intelligent controller is housed.
The present invention further improves: the CPU control output end of described intelligent controller connects the controlled end of described drive motor by optocoupler and driving circuit.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Fig. 1 is the seeder structural representation of one embodiment of the invention.
Fig. 2 is the control circuit schematic diagram of Fig. 1 embodiment.
Fig. 3 is the sowing control procedure process flow diagram of Fig. 1 embodiment.
Embodiment
Embodiment one
The seeder of the present embodiment is a kind of many crops drill for sowing in lines, as shown in Figure 1, the feed mechanism for seed 1 that the land wheel 6 driven containing traction engine and motor 2 drive, feed mechanism for seed 1 is grooved pulley type, be in transmission connection by its rotating shaft and drive motor 2, concrete mechanism can see the existing patent documentation in background technology.
Land wheel 6 is arranged on support one end that speed probe 5 is equipped with in side, the other end of this support is hinged in frame, hinged place installs and makes land wheel 6 have the torsion spring of the trend of landing and proximity switch 4 is housed, in order to the relative frame indexing signal of intelligent controller output bracket.Only have when land wheel 6 is by the effect of ground supports power, when the angle transposition between support and frame exceedes certain limit, the signals of rotational speed sensor that intelligent controller 3 is monitored just as valid data, thus is got rid of land wheel 6 and not to be landed the impact of idle running.Feed mechanism for seed is equipped with LOAD CELLS 71 time.
Intelligent controller 3 as shown in Figure 2, containing CPU and operation input end, the tach signal that the signal input part of its CPU connect respectively speed probe and LOAD CELLS transmit and weighing-up wave, the driving chip L298 through optocoupler TLP521 is connected between the controlled end of drive motor and the control output end of CPU, therefore very reliable.LM324 in Fig. 2 is amplifier, 9013 is reversers.CPU realizes self-adaptation sowing control (see Fig. 3) that the present embodiment sowing object is wheat according to the following steps:
The first step. every mu of specified application rate of read operation input end
, demarcate duration
, sowing fabric width
and desired speed
;
Second step. with desired speed
feed mechanism for seed is driven to rotate sowing;
3rd step. through scheduled duration after 1 minute, feed mechanism for seed rotates, and gathers the changing value of LOAD CELLS
, calculate and demarcate flow rate
, and then try to achieve feed mechanism for seed and often turn calculating flow rate
and store;
4th step. based on the flow rate of feed mechanism for seed unit interval and the application rate equilibrium relationships of traction engine unit interval, draw every mu of application rate
(thousand grams/acre) and land wheel mean speed
the relational expression of (rev/min)
In formula
--every mu of application rate (thousand grams/acre)
--feed mechanism for seed often turns calculating flow rate (gram/turn)
--feed mechanism for seed rotating speed (rev/min)
--sowing fabric width (rice)
--ground wheel diameter (rice)
--land wheel mean speed (rev/min);
5th step. after entering farm work, drive feed mechanism for seed to rotate sowing with desired speed, and according to the data of speed probe, calculate scheduled duration
the actual measurement mean speed of land wheel
(53r/ divides);
6th step. read the ground wheel diameter of input, show that every mu calculates application rate according to relational expression
, and more whether be less than every mu of specified application rate
, in this way then with the predetermined value 20r/ minute speedup revision desired speed that go forward one by one
, as otherwise to slow down revision desired speed with same predetermined value of going forward one by one
;
7th step. repeat the 5th step and the 6th step, until complete unit area sowing;
8th step. complete unit area after planting, using the variable quantity of LOAD CELLS as effective unit area application rate, and revise application rate using it as every mu, replace every mu and calculate application rate;
9th step. when again entering farm work, revise application rate for more every mu and whether be less than every mu of specified application rate
, in this way then with the predetermined value speedup revision desired speed that goes forward one by one
, as otherwise slow down with predetermined value of going forward one by one and revise desired speed
, drive feed mechanism for seed to rotate sowing, until complete unit area sowing.
Facts have proved, compared with prior art, adopt the method tool of the present embodiment to have the following advantages:
1., when sowing object changed by seeding machinary, automatically can be completed the staking-out work of feed mechanism for seed fast by intelligent controller, less demanding to the professional skill of operator, sowing can be met completely and rob and broadcast and the demand of Different Crop application rate Automatic adjusument.
2. adapt to the precise sowing of many crops drilling, contribute to the utilization rate improving facility, save do mechanization operation cost, be convenient to the popularization of crop mechanical work.
3. applicable equally when soil regime changes, thus meet agricultural machinery and the agriculture needs combined.
Claims (3)
1. the self-adaptation of crop drill for sowing in lines more than kind sowing control method, described seeder contains land wheel and the feed mechanism for seed of traction engine drive, described feed mechanism for seed has the drive motor be connected with its rotating shaft transmission, it is characterized in that: speed probe is equipped with in the contiguous land wheel side of frame of described traction engine, described feed mechanism for seed is equipped with LOAD CELLS, the intelligent controller containing CPU and operation input end also installed by described traction engine, the cpu signal input end of described intelligent controller connects described speed probe and LOAD CELLS respectively, the control output end of CPU described in the controlled termination of described drive motor, described CPU realizes sowing according to the following steps and controls:
The first step. every mu of specified application rate of read operation input end, demarcate duration, sowing fabric width and desired speed;
Second step. drive feed mechanism for seed to rotate sowing with desired speed;
3rd step. after scheduled duration, stop feed mechanism for seed rotating, gather the changing value of LOAD CELLS, calculate and demarcate flow rate, and then try to achieve feed mechanism for seed and often turn calculating flow rate;
4th step. based on the flow rate of feed mechanism for seed unit interval and the application rate equilibrium relationships of traction engine unit interval, draw every mu of application rate
(thousand grams/acre) and land wheel mean speed
the relational expression of (rev/min)
In formula
--every mu of application rate (thousand grams/acre)
--feed mechanism for seed often turns calculating flow rate (gram/turn)
--feed mechanism for seed rotating speed (rev/min)
--sowing fabric width (rice)
--ground wheel diameter (rice)
--land wheel mean speed (rev/min);
5th step. after entering farm work, drive feed mechanism for seed to rotate sowing with desired speed, and according to the data of speed probe, calculate the actual measurement mean speed of scheduled duration land wheel;
6th step. read the ground wheel diameter of input, show that every mu under land wheel actual measurement mean speed condition calculates application rate according to relational expression, and more whether be less than every mu of specified application rate, in this way then with the predetermined value speedup revision desired speed that goes forward one by one, as otherwise revise desired speed with predetermined value deceleration of going forward one by one;
7th step. repeat the 5th step and the 6th step, until complete unit area sowing;
8th step. complete unit area after planting, using the variable quantity of LOAD CELLS as effective unit area application rate, and revise application rate using it as every mu, replace every mu and calculate application rate;
9th step. when again entering farm work, revise application rate for more every mu and whether be less than every mu of specified application rate
, in this way then with the predetermined value speedup revision desired speed that goes forward one by one
, as otherwise slow down with predetermined value of going forward one by one and revise desired speed
, drive feed mechanism for seed to rotate sowing, until complete unit area sowing.
2. many crops drill for sowing in lines self-adaptation sowing control method according to claim 1, it is characterized in that: described land wheel is arranged on support one end, the other end of described support is hinged in frame, hinged place installs and makes land wheel have the torsion spring of the trend of landing, and the proximity switch in order to export the relative frame indexing signal of described support to intelligent controller is housed.
3. many crops drill for sowing in lines self-adaptation sowing control method according to claim 2, is characterized in that: the CPU control output end of described intelligent controller connects the controlled end of described drive motor by optocoupler and driving circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410315801.7A CN105302013B (en) | 2014-07-03 | 2014-07-03 | A kind of many crop drill for sowing in lines adaptively sow control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410315801.7A CN105302013B (en) | 2014-07-03 | 2014-07-03 | A kind of many crop drill for sowing in lines adaptively sow control method |
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| CN105302013A true CN105302013A (en) | 2016-02-03 |
| CN105302013B CN105302013B (en) | 2017-09-12 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106416527A (en) * | 2016-11-08 | 2017-02-22 | 吉林省农业机械研究院 | Programmable electrically-driven seed and fertilizer discharging device and method |
| CN107367315A (en) * | 2017-08-29 | 2017-11-21 | 南京农业大学 | A kind of Weighing type broadcasts amount detecting device |
| CN108575149A (en) * | 2018-04-24 | 2018-09-28 | 李春威 | A kind of seeder depositing seed of adjustable application rate |
| CN108990485A (en) * | 2018-06-27 | 2018-12-14 | 山东省农业机械科学研究院 | Planting with sowing machine uniformity control system and method |
| CN112655298A (en) * | 2020-12-23 | 2021-04-16 | 农业农村部南京农业机械化研究所 | Intelligent fertilizing and seeding machine |
| CN112673769A (en) * | 2020-12-23 | 2021-04-20 | 农业农村部南京农业机械化研究所 | Automatic calibrating device and method for seeding rate and fertilizing rate of seeder |
| CN112698597A (en) * | 2020-12-23 | 2021-04-23 | 农业农村部南京农业机械化研究所 | Automatic control system and control method for seeder |
| CN112690068A (en) * | 2020-12-23 | 2021-04-23 | 农业农村部南京农业机械化研究所 | Automatic calibration control system and control method for seeding quantity and fertilizing quantity of precision seeder |
| CN114342605A (en) * | 2021-12-14 | 2022-04-15 | 江苏大学 | Multi-information fusion rice and wheat seeder seeding rate estimation method and monitoring system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106416527A (en) * | 2016-11-08 | 2017-02-22 | 吉林省农业机械研究院 | Programmable electrically-driven seed and fertilizer discharging device and method |
| CN107367315A (en) * | 2017-08-29 | 2017-11-21 | 南京农业大学 | A kind of Weighing type broadcasts amount detecting device |
| CN108575149A (en) * | 2018-04-24 | 2018-09-28 | 李春威 | A kind of seeder depositing seed of adjustable application rate |
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| CN112673769A (en) * | 2020-12-23 | 2021-04-20 | 农业农村部南京农业机械化研究所 | Automatic calibrating device and method for seeding rate and fertilizing rate of seeder |
| CN112698597A (en) * | 2020-12-23 | 2021-04-23 | 农业农村部南京农业机械化研究所 | Automatic control system and control method for seeder |
| CN112690068A (en) * | 2020-12-23 | 2021-04-23 | 农业农村部南京农业机械化研究所 | Automatic calibration control system and control method for seeding quantity and fertilizing quantity of precision seeder |
| CN112690068B (en) * | 2020-12-23 | 2022-03-11 | 农业农村部南京农业机械化研究所 | Automatic calibration control system and control method for seeding quantity and fertilizing quantity of precision seeder |
| CN114342605A (en) * | 2021-12-14 | 2022-04-15 | 江苏大学 | Multi-information fusion rice and wheat seeder seeding rate estimation method and monitoring system |
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