CN106886055A - A kind of air-suction seeding unit inhales kind of condition monitoring system and a broadcast leakage monitoring method - Google Patents
A kind of air-suction seeding unit inhales kind of condition monitoring system and a broadcast leakage monitoring method Download PDFInfo
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- CN106886055A CN106886055A CN201710105984.3A CN201710105984A CN106886055A CN 106886055 A CN106886055 A CN 106886055A CN 201710105984 A CN201710105984 A CN 201710105984A CN 106886055 A CN106886055 A CN 106886055A
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- air
- sucker
- seeding unit
- encoder
- suction
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
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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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- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Environmental Sciences (AREA)
- Cultivation Of Plants (AREA)
Abstract
Kind of a condition monitoring system, including master control system, signal acquisition module, CAN module, host computer with single-chip microcomputer as core are inhaled the invention discloses a kind of air-suction seeding unit；The signal acquisition module is connected with microcontroller communication, and single-chip microcomputer is connected by CAN module with upper machine communication；The signal acquisition module includes photoelectric sensor and encoder, photoelectric sensor is arranged on air-suction seeding unit enclosure, when air-suction seeding unit enclosure closed, photoelectric sensor is pressed close to discharge plate, encoder is arranged on air-suction seeding unit main shaft, the value of encoder resolution is n times of the sucker of discharge plate, and wherein n is the integer not less than 1.The present invention discloses the broadcast leakage monitoring method that a kind of air-suction seeding unit inhales kind of condition monitoring system.
Description
Technical field
The invention belongs to agricultural machinery technological field, and in particular to a kind of suction kind condition monitoring system of air-suction seeding unit.
Background technology
The mechanical planting of high speed and precision has become soybean, the important way of seeding corn and other crops seeding operation, and aspirated-air type is broadcast
Kind of machine the features such as, high-speed job good to seed adaptability, is more and more applied to seeding operation because its wound kind is few
In.The wind-force negative pressure produced by blower fan can be adsorbed on discharge plate seed, advance and discharge plate with seeder
Rotate, seed is turned to without negative pressuren zone, discharged from feed mechanism for seed and complete sowing.But because discharge plate design and processing technology are deposited
In defect, inhaling sucker during planting may be blocked by impurity or broken seed, or because the negative pressure of blower fan offer
Not enough, these factors can all cause the sucker cannot normally to inhale kind to power, and further result in the generation of broadcast leakage phenomenon.In high speed and precision
During sowing, once without finding that feed mechanism for seed goes wrong in time, producing substantial amounts of broadcast leakage, can influence to sow qualification rate,
And then influence yield.
The research of broadcast leakage monitoring technology at home and abroad has been achieved for certain progress.Existing monitoring system is mostly under
The monitoring of planting, spacing in the rows is calculated by obtaining the time interval and machine operating speed of adjacent two seeds falls, and
Compare calculating spacing in the rows with the size of theoretical spacing in the rows to judge whether to produce broadcast leakage.This mode is only capable of detecting the quantity of broadcast leakage,
The problem of feed mechanism for seed can not be found.
The content of the invention
For the shortcomings and deficiencies of existing broadcast leakage monitoring system, kind of a situation is inhaled the invention provides a kind of air-suction seeding unit
Monitoring system, monitoring system of the invention is realized to air-suction seeding unit by combining photoelectric sensor and photoelectric encoder
Each sucker of discharge plate inhales the monitoring of kind of situation, can obtain the information such as the suction kind amount of the feed mechanism for seed amount of broadcasting, broadcast leakage amount and each sucker.
Concrete technical scheme of the invention is：
The present invention provides a kind of air-suction seeding unit and inhales kind of a condition monitoring system, including the main control with single-chip microcomputer as core
System, signal acquisition module, CAN module, host computer；The signal acquisition module is connected with microcontroller communication, single-chip microcomputer
It is connected with upper machine communication by CAN module；The signal acquisition module includes photoelectric sensor and encoder, photoelectric transfer
Sensor is arranged on air-suction seeding unit enclosure, and when air-suction seeding unit enclosure closed, photoelectric sensor is pasted with discharge plate
Closely, encoder is arranged on air-suction seeding unit main shaft, and the value of encoder resolution is n times of the sucker of discharge plate, and wherein n is
Integer not less than 1.
Further, the encoder is absolute type optical rotary encoder.
Further, the photoelectric sensor generally concave shape structure, its light emitting diode is opposite to light-sensitive element
The raised inner side in the concave shape structure both sides of photoelectric sensor and highly consistent.
Further, the host computer includes man-machine interactive system, mainboard, microcontroller and CAN transceiver boards, and host computer leads to
Cross CAN transceiver boards to be connected with the single-chip microcomputer, CAN transceiver boards, microcontroller, mainboard and the man-machine interactive system company of communicating successively
Connect.
The broadcast leakage monitoring method for planting condition monitoring system is inhaled present invention simultaneously provides a kind of air-suction seeding unit, including it is following
Step：
Before step one, air-suction seeding unit operation, by encoder define initial position, and by air-suction seeding unit from
First sucker by photoelectric sensor is labeled as No. 1 sucker, sucker number consecutively afterwards after initial position operating；
Step 2, air-suction seeding unit operation, photoelectric sensor by monitor seed by situation, pulse signal is sent out
Deliver to single-chip microcomputer；, as the rotation conveying pulse signal of feed mechanism for seed main shaft is to single-chip microcomputer, single-chip microcomputer is respectively by two for encoder simultaneously
Kind signal is sent to host computer and is stored；
Two kinds of pulse signals that step 3, host computer are transmitted by processing single chip, judge the suction kind of each sucker of discharge plate
Situation.
Step 4, host computer are counted to the suction kind amount of each sucker and leakage pipette, and by the suction kind information of each sucker and
Its corresponding numbering is stored.
Further, two kinds of pulse signals that the step 3 host computer is transmitted by processing single chip, judge discharge plate
The suction kind situation of each sucker, detailed process is：
The resolution ratio of encoder is n times of discharge plate sucker number, and n is the integer not less than 1, then every n that encoder sends
Individual pulse can correspond to a sucker on discharge plate；Demarcation and the numbering of sucker by initial position, host computer can be by compiling
The numbering of sucker is judged in the pulse of code device；If being not received by photoelectric sensor in a period of encoder n pulse of correspondence
The pulse transmitted, then judge this corresponding sucker of n pulse to occur in that Lou and inhale.
Brief description of the drawings
Fig. 1 is the planter schematic diagram for being provided with monitoring system of the invention
Fig. 2 is sensor construction schematic diagram in the present invention
Fig. 3 is sensor mounting location schematic diagram in the present invention
Fig. 4 inhales kind of a condition monitoring schematic diagram for of the invention
Fig. 5 is the composition frame chart of air-suction seeding unit broadcast leakage monitoring system of the invention
Fig. 6 is the flow chart of whole system operation of the present invention
Wherein：1. the encoder 6. of 2. photoelectric sensor of feed mechanism for seed shell, 3. discharge plate, 4. feed mechanism for seed main shaft 5. lights
The connecting line of 7. light-sensitive element of diode 8.
Specific embodiment
Specific embodiment of the invention is further illustrated below in conjunction with accompanying drawing.
As shown in figure 1, this example is a kind of air-suction seeding unit inhales kind of a condition monitoring system, including with single-chip microcomputer as core
Master control system, signal acquisition module, CAN module, host computer.Signal acquisition module is connected with microcontroller communication, single
Piece machine is connected by CAN module with upper machine communication.
Described signal acquisition module includes photoelectric sensor 2, encoder 5 and filter circuit；CAN module includes
CAN controller and CAN transceiver；Host computer includes man-machine interactive system, mainboard, microcontroller and CAN transceiver boards.Photoelectric sensing
The signal that device 2 and encoder 5 send sends single-chip microcomputer after distinguishing filtered circuit filter, and single-chip microcomputer respectively passes through two paths of signals
CAN module is sent to host computer, host computer by CAN transceiver boards receiving and transmitting signals, CAN transceiver boards, microcontroller, mainboard and
Man-machine interactive system communicates connection successively.
It is characterized in：Photoelectric sensor 2 is arranged on inside air-suction seeding unit shell 1, when air-suction seeding unit shell 1
During closure, photoelectric sensor 2 is pressed close to discharge plate 3.Encoder 5 is arranged on air-suction seeding unit main shaft 4, it is preferred that compiled
Code device is absolute type optical rotary encoder, and the value of its resolution ratio is n times (n is the integer not less than 1) of the sucker of discharge plate.
As shown in Fig. 2 sensor of the photoelectric sensor 2 for the generally plastic material of concave shape structure, its light-emitting diodes
Pipe 6 and light-sensitive element 7 are opposite to the raised inner side in concave shape structure both sides of photoelectric sensor, and light emitting diode 6 with it is photosensitive
Element 7 is highly consistent.A height of 15-20mm of middle recess, width is 25-30mm.When feed mechanism for seed is operated, seed can be from seeding
The recess of device passes through, and does not come in contact with sensor.
As shown in figure 3, discharge plate 3 is arranged on feed mechanism for seed can be divided into Xi Zhong areas and fall-sowing area.Photoelectric sensor 2 is arranged on
The Xi Zhong areas end of discharge plate 3, the intersection with fall-sowing area.Untight seed is adsorbed to be dropped before by sensor with regard to energy quilt
Sensor monitoring is out.
Feed mechanism for seed selected by example is air-suction seeding unit, a diameter of 200mm of its discharge plate 3, and thickness is 2mm, there is 40
Individual sucker, and hole sucting diameter is 4mm；Encoder 5 is the absolute type optical rotary encoder of 360P/R, its model from resolution ratio
It is E6F-AB3C-C 360P.
A kind of air-suction seeding unit of the present embodiment inhales the broadcast leakage monitoring method of kind of condition monitoring system, whole flow process such as Fig. 6
Shown, its process is：
Before planting with sowing machine operation, the zero-point positioning (initial position) of system is carried out by encoder 5, while by aspiration
No. 1 sucker is labeled as from first sucker by photoelectric sensor 2 after initial position operating after formula feed mechanism for seed operation, afterwards
The order that each sucker passes through photoelectric sensor 2 according to it carries out number consecutively.Because discharge plate 3 is 40 holes, the model of encoder 5
360P/R, after zero-point positioning is completed, feed mechanism for seed main shaft 4 turns over a circle, and encoder 5 sends 360 pulse signals, and often sends
9 pulses should then have a sucker by sensor.
As shown in Figure 4 when the sucker of discharge plate 3 sucts seed, and during by photoelectric sensor 2, seed is to photoelectric sensor
The light of light emitting diode is blocked on 2, therefore entirely the electric current in photoelectric sensor circuit there occurs change, and monolithic function connects
Receive a square-wave pulse.Pulse signal except receiving photoelectric sensor, single-chip microcomputer receives the pulse that encoder 5 sends simultaneously
Signal.
As shown in Figure 4,5, two kinds of pulse signals of single-chip microcomputer are sent to host computer and are stored, while host computer is to two kinds of arteries and veins
Signal is rushed while being analyzed treatment.No. 1 sucker correspondence 1-9 encoder pulse, No. 2 sucker correspondence 10-18 encoder arteries and veins
Punching, the rest may be inferred.Square wave arteries and veins in corresponding respective 9 encoder pulses of 1, No. 2 suckers simultaneously to that should there is sensor to send
Punching, then it represents that the two suckers normally inhale kind.The correspondence sent without sensor in corresponding 9 encoder pulses of No. 40 suckers
Pulse, then show that No. 40 sucker leakages are inhaled and plant.
The quantity that host computer will leak suction kind is added up, while the umber of pulse sent according to photoelectric sensor 2 can be counted
The quantity of actual sowing.The leakage sowing rate of seeder and the qualification rate of sowing can be calculated according to the two data.
According to two kinds of pulse datas, and zero point positioning, can determine whether out the suction kind situation of each sucker.Host computer is by each suction
Hole is inhaled the actual conditions planted and is stored, by analyses and comparison data after the completion of seeding operation, it can be found that go wrong
Specially some sucker.Sucker is checked, it may be determined that its problem is the defect of design and processing technology, or sucker quilt
Impurity, broken seed etc. such as block at the failure.
Claims (6)
1. a kind of air-suction seeding unit inhales kind of a condition monitoring system, including master control system with single-chip microcomputer as core, signal are adopted
Collection module, CAN module, host computer；The signal acquisition module is connected with microcontroller communication, and single-chip microcomputer passes through CAN
Module is connected with upper machine communication；The signal acquisition module includes photoelectric sensor and encoder, it is characterised in that photoelectric transfer
Sensor is arranged on air-suction seeding unit enclosure, and when air-suction seeding unit enclosure closed, photoelectric sensor is pasted with discharge plate
Closely, encoder is arranged on air-suction seeding unit main shaft, and the value of encoder resolution is n times of the sucker of discharge plate, and wherein n is
Integer not less than 1.
2. a kind of air-suction seeding unit as claimed in claim 1 inhales kind of a condition monitoring system, it is characterised in that the encoder
It is absolute type optical rotary encoder.
3. a kind of air-suction seeding unit as claimed in claim 1 inhales kind of a condition monitoring system, it is characterised in that the photoelectric transfer
Sensor generally concave shape structure, its light emitting diode is convex with the concave shape structure both sides that light-sensitive element is opposite to photoelectric sensor
The inner side and highly consistent risen.
4. a kind of air-suction seeding unit as claimed in claim 1 inhales kind of a condition monitoring system, it is characterised in that the host computer
Including man-machine interactive system, mainboard, microcontroller and CAN transceiver boards, host computer is connected by CAN transceiver boards with the single-chip microcomputer
Connect, CAN transceiver boards, microcontroller, mainboard and man-machine interactive system communicate connection successively.
5. a kind of air-suction seeding unit as claimed in claim 1 inhales the broadcast leakage monitoring method of kind of condition monitoring system, its feature
It is to comprise the following steps：
Before step one, air-suction seeding unit operation, initial position is defined by encoder, and by air-suction seeding unit from initial
First sucker by photoelectric sensor is labeled as No. 1 sucker, sucker number consecutively afterwards after the operating of position；
Step 2, air-suction seeding unit operation, photoelectric sensor by monitor seed by situation, by pulse signal send to
Single-chip microcomputer；, as the rotation conveying pulse signal of feed mechanism for seed main shaft is to single-chip microcomputer, single-chip microcomputer is respectively by two kinds of letters for encoder simultaneously
Number being sent to host computer is stored；
Two kinds of pulse signals that step 3, host computer are transmitted by processing single chip, judge the suction kind situation of each sucker of discharge plate.
Step 4, host computer are counted to the suction kind amount of each sucker and leakage pipette, and by the suction kind information of each sucker and its right
The numbering answered is stored.
6. a kind of air-suction seeding unit as claimed in claim 5 inhales the broadcast leakage monitoring method of kind of condition monitoring system, its feature
It is that two kinds of pulse signals that the step 3 host computer is transmitted by processing single chip judge the suction kind of each sucker of discharge plate
Situation, detailed process is：
The resolution ratio of encoder is n times of discharge plate sucker number, and n is the integer not less than 1, then every n arteries and veins that encoder sends
Punching can correspond to a sucker on discharge plate；Demarcation and the numbering of sucker by initial position, host computer can be by encoder
Pulse judge the numbering of sucker；If being not received by photoelectric sensor in a period of encoder n pulse of correspondence to transmit
Pulse, then judge this corresponding sucker of n pulse occur in that Lou inhale.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710105984.3A CN106886055A (en) | 2017-02-27 | 2017-02-27 | A kind of air-suction seeding unit inhales kind of condition monitoring system and a broadcast leakage monitoring method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710105984.3A CN106886055A (en) | 2017-02-27 | 2017-02-27 | A kind of air-suction seeding unit inhales kind of condition monitoring system and a broadcast leakage monitoring method |
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| CN201710105984.3A Pending CN106886055A (en) | 2017-02-27 | 2017-02-27 | A kind of air-suction seeding unit inhales kind of condition monitoring system and a broadcast leakage monitoring method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109121600A (en) * | 2018-07-18 | 2019-01-04 | 南京信息工程大学 | A kind of the broadcast leakage detection system and method for pneumatic seeder |
| CN112082789A (en) * | 2020-08-03 | 2020-12-15 | 华南农业大学 | On-line detection method and device for operation precision of pneumatic drum type plug seeder |
| CN112292995A (en) * | 2019-07-25 | 2021-02-02 | 青岛三山机电科技发展有限公司 | Seeding mechanism on seeder |
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|---|---|---|---|---|
| CN109121600A (en) * | 2018-07-18 | 2019-01-04 | 南京信息工程大学 | A kind of the broadcast leakage detection system and method for pneumatic seeder |
| CN112292995A (en) * | 2019-07-25 | 2021-02-02 | 青岛三山机电科技发展有限公司 | Seeding mechanism on seeder |
| CN112082789A (en) * | 2020-08-03 | 2020-12-15 | 华南农业大学 | On-line detection method and device for operation precision of pneumatic drum type plug seeder |
| CN112082789B (en) * | 2020-08-03 | 2021-12-14 | 华南农业大学 | On-line detection method and device for operation precision of pneumatic drum type plug seeder |
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