CN110824969A - Automatic control method for seeding rate of no-tillage planter - Google Patents
Automatic control method for seeding rate of no-tillage planter Download PDFInfo
- Publication number
- CN110824969A CN110824969A CN201810910594.8A CN201810910594A CN110824969A CN 110824969 A CN110824969 A CN 110824969A CN 201810910594 A CN201810910594 A CN 201810910594A CN 110824969 A CN110824969 A CN 110824969A
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- China
- Prior art keywords
- module
- stepping motor
- single chip
- chip microcomputer
- motor
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/006—Minimum till seeding
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/20—Parts of seeders for conducting and depositing seed
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
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- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Sowing (AREA)
Abstract
The invention discloses an automatic control method for the seeding rate of a no-tillage planter, which belongs to the technical field of agricultural machinery and mainly comprises a land wheel, an infrared speed sensor, a signal conditioning module, a single chip microcomputer module, a signal amplifying and driving module, a stepping motor, a planter, a keyboard module and a display module.
Description
Technical Field
The invention relates to an automatic control method for the seeding rate of a no-tillage seeder, belonging to the technical field of agricultural machinery.
Background
In recent years, with the development of precision seeding technology, precision seeding has become a main feature of modern seeding technology and becomes a main development direction of seeding. According to statistics, the precision seeding can increase the yield by 10-30% compared with the traditional drill seeding, however, the currently adopted mechanical seed sowing device sometimes has difficulty in ensuring the operation quality of precision seeding. The invention develops an automatic control method for the seeding rate of a no-tillage seeder.
Disclosure of Invention
Aiming at the defects, the invention provides an automatic control method for the seeding rate of a no-tillage seeder.
The invention is realized by the following technical scheme: the automatic control method of the seeding rate of the no-tillage seeding machine mainly comprises a land wheel, an infrared speed measuring sensor, a signal conditioning module, a singlechip module, a signal amplifying and driving module, a stepping motor, a seeding machine, a keyboard module and a display module, and is characterized in that: the land wheel is connected with the infrared speed measuring sensor, the infrared speed measuring sensor is connected with the signal conditioning module, signals detected by the signal conditioning module pass through the single chip microcomputer module, the single chip microcomputer module and the signal amplification module are connected with the driving module, the signal amplification module is connected with the stepping motor, the stepping motor is connected with the seeder, and the keyboard module and the display module are both connected with the single chip microcomputer module.
And the signal amplification and driving module is additionally provided with a photoelectric coupler at the joint of the stepping motor driver and the single chip microcomputer, so that spike pulse and noise interference are suppressed.
The stepping motor is a 57BYG007 stepping motor, and because the motor does not work in a vibration area, the motor is generally not started at the working speed when the speed is high or the inertia load is large, the gradual frequency increasing and speed increasing are adopted, and firstly, the motor does not step out; secondly, the noise can be reduced, and the positioning precision of the stalling can be improved.
The invention has the advantages that: the automatic control method for the seeding rate of the no-tillage planter of the invention utilizes the timing/counter of the single chip microcomputer, not only can realize the real-time performance of the rotating speed measurement, but also can obtain higher measurement precision in a wider measurement range, and has important significance for improving the efficiency of agricultural machinery, reducing the operation cost, increasing the income of farmers and the like.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention.
In the figure, the device comprises a ground wheel 1, an infrared speed measurement sensor 2, a signal conditioning module 3, a single chip microcomputer module 4, a signal amplification and driving module 5, a stepping motor 6, a seeder 7, a keyboard module 8, a keyboard module 9 and a display module.
Detailed Description
The utility model provides a no-tillage seeder seeding volume automatic control method, is mainly by land wheel 1, infrared speed sensor 2, signal conditioning module 3, single chip module 4, signal amplification and drive module 5, step motor 6, disseminator 7, keyboard module 8 and display module 9 constitute, its characterized in that: the land wheel 1 is connected with the infrared speed measuring sensor 2, the infrared speed measuring sensor 2 is connected with the signal conditioning module 3, signals detected by the signal conditioning module 3 pass through the single chip microcomputer module 4, the single chip microcomputer module 4 is connected with the driving module 5 through signal amplification, the signal amplification is connected with the driving module 5 and the stepping motor 6, the stepping motor 6 is connected with the seeder 7, and the keyboard module 8 and the display module 9 are both connected with the single chip microcomputer module 4.
And the signal amplification and driving module 5 is additionally provided with a photoelectric coupler at the joint of the stepping motor driver and the single chip microcomputer to inhibit spike pulse and noise interference.
The stepping motor 6 adopts a 57BYG007 stepping motor, and because the motor does not work in a vibration area, the motor is not started at the working speed generally at a higher speed or under a large inertia load, and the gradual frequency increasing and speed increasing are adopted. Firstly, the motor does not lose step; secondly, noise can be reduced.
When the device works, the machine advancing speed detection circuit adopts direct current 9V for power supply. During installation, the infrared light emitting diode VL and the infrared receiving diode VDL are arranged on two sides of the grating wheel in an opposite mode, so that infrared rays emitted by the VL can be well received by the infrared receiving tube VDL. The grating wheel is a light-tight sheet in the shape of a circular wheel and is made into a grating shape, the light-tight sheet has the function of continuously cutting off infrared rays along with the rotation of the ground wheel, so that the infrared rays of VL are intermittently irradiated on the VDL, a series of pulses are generated in 2 sections, and then the voltage amplifier LM324 is used for carrying out voltage amplification. The feedback resistor controls the output pulse voltage by adjusting the resistance value of the resistor. The amplified voltage pulse is directly sent to a Schmitt trigger, and is shaped INTO a square wave signal with steep edges, so that the counting pulse advancing speed detection module reliably sends the counting pulse to a following circuit, the rotating speed of a land wheel is converted INTO a pulse through a speed disc and a photoelectric sensor and is input INTO a single chip microcomputer AT89C51, and an output line of the pulse is connected to an INTO pin of AT89C51, so that each time the sensor outputs one pulse, an interrupt is generated in the single chip microcomputer, and an interrupt program is called. And obtaining the advancing speed of the machine tool through reasoning calculation. The singlechip receives the signal and outputs a pulse signal for controlling the step motor through processing, and adjusts the rotation of the pulse signal to achieve the purpose of automatically controlling the seed sowing device.
It will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in the embodiments described above without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims.
Claims (3)
1. The automatic control method of the seeding rate of the no-tillage seeding machine mainly comprises a land wheel, an infrared speed measuring sensor, a signal conditioning module, a singlechip module, a signal amplifying and driving module, a stepping motor, a seeding machine, a keyboard module and a display module, and is characterized in that: the land wheel is connected with the infrared speed measuring sensor, the infrared speed measuring sensor is connected with the signal conditioning module, signals detected by the signal conditioning module pass through the single chip microcomputer module, the single chip microcomputer module and the signal amplification module are connected with the driving module, the signal amplification module is connected with the stepping motor, the stepping motor is connected with the seeder, and the keyboard module and the display module are both connected with the single chip microcomputer module.
2. The method for automatically controlling the seeding rate of a no-tillage seeding machine according to claim 1, wherein: and the signal amplification and driving module is additionally provided with a photoelectric coupler at the joint of the stepping motor driver and the single chip microcomputer, so that spike pulse and noise interference are suppressed.
3. The method for automatically controlling the seeding rate of a no-tillage seeding machine according to claim 1, wherein: the stepping motor is a 57BYG007 stepping motor, and because the motor does not work in a vibration area, the motor is generally not started at the working speed when the speed is high or the inertia load is large, the gradual frequency increasing and speed increasing are adopted, and firstly, the motor does not step out; secondly, the noise can be reduced, and the positioning precision of the stalling can be improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810910594.8A CN110824969A (en) | 2018-08-12 | 2018-08-12 | Automatic control method for seeding rate of no-tillage planter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810910594.8A CN110824969A (en) | 2018-08-12 | 2018-08-12 | Automatic control method for seeding rate of no-tillage planter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110824969A true CN110824969A (en) | 2020-02-21 |
Family
ID=69541286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810910594.8A Pending CN110824969A (en) | 2018-08-12 | 2018-08-12 | Automatic control method for seeding rate of no-tillage planter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110824969A (en) |
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2018
- 2018-08-12 CN CN201810910594.8A patent/CN110824969A/en active Pending
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200221 |