CN110196087A - A kind of Pneumatic conveying type wheat seeder flow detection warning device and method - Google Patents
A kind of Pneumatic conveying type wheat seeder flow detection warning device and method Download PDFInfo
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- CN110196087A CN110196087A CN201910451001.0A CN201910451001A CN110196087A CN 110196087 A CN110196087 A CN 110196087A CN 201910451001 A CN201910451001 A CN 201910451001A CN 110196087 A CN110196087 A CN 110196087A
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- 238000001514 detection method Methods 0.000 title claims abstract description 85
- 241000209140 Triticum Species 0.000 title claims abstract description 39
- 235000021307 Triticum Nutrition 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 31
- 230000008569 process Effects 0.000 claims abstract description 11
- 238000012545 processing Methods 0.000 claims description 19
- 239000000919 ceramic Substances 0.000 claims description 17
- 238000013016 damping Methods 0.000 claims description 11
- 238000007689 inspection Methods 0.000 claims description 11
- 238000005259 measurement Methods 0.000 claims description 11
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 9
- 238000009331 sowing Methods 0.000 claims description 7
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 6
- 229910052709 silver Inorganic materials 0.000 claims description 6
- 239000004332 silver Substances 0.000 claims description 6
- 229910001369 Brass Inorganic materials 0.000 claims description 5
- 239000010951 brass Substances 0.000 claims description 5
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- 230000005764 inhibitory process Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 10
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- 230000000694 effects Effects 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 238000010899 nucleation Methods 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 208000032365 Electromagnetic interference Diseases 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/08—Broadcast seeders; Seeders depositing seeds in rows
- A01C7/085—Broadcast seeders
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/56—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
- G01H11/06—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
- G01H11/08—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means using piezoelectric devices
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- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Soil Sciences (AREA)
- Fluid Mechanics (AREA)
- Environmental Sciences (AREA)
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
- Emergency Alarm Devices (AREA)
- Sowing (AREA)
- Fertilizing (AREA)
Abstract
A kind of Pneumatic conveying type wheat seeder flow detection warning device and method, the device include: car-mounted terminal；Operating speed sensor is mounted on the tail portion of seeder and connect with the car-mounted terminal, the real-time speed to advance for measuring the seeder, and is transmitted to the car-mounted terminal；Seed flow sensor, be mounted on the air-flow distributor of the seeder goes out kind of a mouth；And signal acquisition process unit, it is connect respectively with the seed flow sensor and the car-mounted terminal, the signal for acquiring the seed flow sensor output obtains instant flow after being handled and is transferred to the car-mounted terminal；Wherein, the car-mounted terminal calculates the real-time application rate of setting using the real-time speed received and the planting density of setting, then is compared with the instant flow, and leak stopping alarm is carried out if meeting alert if.The present invention also provides the Pneumatic conveying type wheat seeder flow detection alarm methods of the device.
Description
Technical field
The present invention relates to agricultural machinery observation and control technology, especially a kind of strength detected for application rate and leak stopping with alarm
Feeding wheat seeder flow detection warning device and method.
Background technique
Wheat is a kind of important crops in world wide, as modern agriculture is to seeder operation quality, operation speed
Spend require raising, Pneumatic conveying type wheat seeder using more and more extensive.Precision drilling can guarantee higher operation
Quality keeps planting density uniform, saves sowing cost, increases economic efficiency.
Currently, the domestic research for Pneumatic conveying type wheat seeder sowing flow detection is less, it is concentrated mainly on stifled
In terms of leak detection, existing wheat cultivation detection method mainly has photoelectric method, capacitance method, image method etc..Photoelectric method is quick to dust
Sense, and since wheat seed is small in size, it is easy missing inspection；Capacitance method is to more seeds while the precision detected, different seeding speed
Influence need further to study；Image method is at high cost, requires operating environment high, it is difficult to and it is universal in farm environment, and not
Preferably it is used for high-speed traffic measurement.
External Pneumatic conveying type wheat cultivation flow sensor is based on photoelectric method, and in addition there are water zone by acoustic-resistivity method and piezoelectricity
Method.The structure of present piezoelectric method sensor is in a wedge angle, will cause the mutation of airflow direction in this way；And in order to guarantee to plant
Son can all strike on sensing element, and the throat of a reduced inner diameter can be arranged, this itself affects the smooth logical of kind of subflow
It crosses, and consumes the energy of air-flow.
Summary of the invention
The technical problem to be solved by the present invention is in view of the above drawbacks of the prior art, provide it is a kind of for application rate and
The Pneumatic conveying type wheat seeder flow detection warning device and method of leak stopping detection and alarm.
To achieve the goals above, the present invention provides a kind of alarms of Pneumatic conveying type wheat seeder flow detection to fill
It sets, wherein include:
Car-mounted terminal；
Operating speed sensor is mounted on the tail portion of seeder and connect with the car-mounted terminal, for measuring described broadcast
The real-time speed that kind machine advances, and the real-time speed is transmitted to the car-mounted terminal；
Seed flow sensor, be mounted on the air-flow distributor of the seeder goes out kind of a mouth；And
Signal acquisition process unit is connect, for acquiring respectively with the seed flow sensor and the car-mounted terminal
The signal of seed flow sensor output simultaneously obtains instant flow after being handled, and the instant flow is transferred to described
Car-mounted terminal；
Wherein, the car-mounted terminal calculates setting using the real-time speed received and the planting density of setting
Real-time application rate, then be compared with the instant flow received, leak stopping alarm is carried out if meeting alert if.
Above-mentioned Pneumatic conveying type wheat seeder flow detection warning device, wherein the operating speed sensor is
Radar velocity measurement sensor, and the mounting axis of the radar velocity measurement sensor and horizontal plane have an angle.
Above-mentioned Pneumatic conveying type wheat seeder flow detection warning device, wherein the seed flow sensor packet
The detection piece of shell and installation on the housing is included, the shell includes the pipeline passed through for seed, the detection piece packet
It includes:
Pedestal is mounted on the pipeline, and it includes multiple that the section of the pedestal, which is located at the side in the pipeline to be,
Rank it is ladder-like, joint face between the step be parallel to each other in level, the step surface of each step and with vertical side
To with an angle；
Compensating unit is horizontally arranged on the pedestal；And
Multiple detection units are separately mounted on the step surface.
Above-mentioned Pneumatic conveying type wheat seeder flow detection warning device, wherein the step surface and vertical direction
Angle be 30 degree.
Above-mentioned Pneumatic conveying type wheat seeder flow detection warning device, wherein the detection unit and compensation are single
Member respectively include: crash panel, piezoelectric ceramic piece, damping element and the tuning quality block being sequentially bonded together pass through the pressure
Electroceramics piece is drawn signal wire and is connect with the signal processing circuit of the signal acquisition process unit, and the crash panel is for bearing
Seed hits the vibration generated and protects the piezoelectric ceramic piece, and the piezoelectric ceramic piece is used to detect the vibration of the crash panel
Signal, the damping element and tuning quality block absorb vibrational energy for constituting tuned mass damper and acceleration signals declines
Subtract.
Above-mentioned Pneumatic conveying type wheat seeder flow detection warning device, wherein the striking face ruler of the crash panel
Very little is long 25mm, and wide 5mm, the piezoelectric ceramic piece is brass substrate, and the piezoelectric ceramic piece surface coats silver electrode, the letter
Number line is respectively welded in the brass substrate and silver electrode.
Above-mentioned Pneumatic conveying type wheat seeder flow detection warning device, wherein the shell include interconnecting piece and
Seed inspection area, interconnecting piece setting is at the shell both ends and section is circle, the interconnecting piece respectively with the air-flow
Distributor is connected with seed spout, the Seed inspection area between the interconnecting piece, square straight tube including sequential connection,
Square circular arc bend pipe and square straight tube, the disc for the interconnecting piece that the sectional area of the square straight tube is connect with both ends
Product is equal.
Above-mentioned Pneumatic conveying type wheat seeder flow detection warning device, wherein the signal acquisition process unit
Signal processing circuit include difference channel, bandwidth-limited circuit, charge amplifying circuit, envelope detection circuit and schmidt trigger
Device, two input end signals of the difference channel are respectively the benefit of the detection signal and compensating unit of the detection unit
Repay signal, the difference channel is used for inhibiting interference signal after the detection signal and thermal compensation signal difference processing；The band
Vibration frequency caused by bandpass filter circuit only allows seed to hit passes through, for further suppressing other noise jamming signals；Institute
Charge amplifying circuit is stated for faint signal to be amplified processing；The envelope detection circuit is used for amplified multimodal
Damping vibration attenuation oscillator signal is converted into single peak value signal；The Schmidt trigger is used for analog signal and reference voltage ratio
Output pulse signal after relatively.
Above-mentioned Pneumatic conveying type wheat seeder flow detection warning device, wherein each air-flow distributor
Kind mouth all installs the seed flow sensor out, or installs described in one at interval of kind of the mouth that goes out of n air-flow distributor
Seed flow sensor, wherein n is integer and n >=1.
In order to which above-mentioned purpose is better achieved, the present invention also provides a kind of Pneumatic conveying type wheat seeder flow detections
Alarm method, wherein application rate and leak stopping are carried out using above-mentioned Pneumatic conveying type wheat seeder flow detection warning device
Detection and alarm, include the following steps:
The real-time speed that S100, the measurement seeder advance, and the real-time speed is transmitted to the car-mounted terminal；
S200, the signal of acquisition seed flow sensor output simultaneously obtain instant flow after being handled, will be described
Instant flow is transferred to the car-mounted terminal；
S300, the car-mounted terminal calculate setting in fact using the planting density of the real-time speed received and setting
When application rate；
After S400, the car-mounted terminal receive the instant data on flows Fn of n-th of sensor, first determine whether that setting is real-time
Whether application rate F0 is 0, shows that flow percentage Rn is 100% if F0 is 0；Fn/F0 is calculated if F0 is not 0, is flowed
Measure percentage Rn, the value of car-mounted terminal real-time display Rn；
S500, when each air-flow distributor is when going out kind of mouth and installing a seed flow sensor, it is described
Car-mounted terminal error in judgement | Rn-100% | absolute value whether be more than setting alarm threshold value M%, if be more than if carry out acousto-optic
Alarm, and it is re-execute the steps S400, S400 is directly re-execute the steps if being no more than；When at interval of n air-flow distributor
When going out kind of mouth one seed flow sensor being installed, the car-mounted terminal judges whether Rn-100% is more than setting
Alarm threshold value N% or 100%-Rn whether be more than setting alarm threshold value M%, wherein 0 < N% < M%, if be more than if carry out sound
Light alarm, and it is re-execute the steps S400, S400 is directly re-execute the steps if being no more than.
The technical effects of the invention are that:
The present invention can guarantee seed flow measurement precision in rugged environment, and flow information is detection control wheat
Real-time planting density provides guarantee.Energy can significantly reducing by sowing flow early stage there is broadcast leakage or blocking
It alarms in advance, reduces and lost caused by blocking, and can realize alarm when relatively large deviation occurs in planting density；It can
Location of fault is rapidly and accurately determined according to warning message, to debug in time.
Below in conjunction with the drawings and specific embodiments, the present invention will be described in detail, but not as a limitation of the invention.
Detailed description of the invention
Fig. 1 is the flow detection warning device structural schematic diagram of one embodiment of the invention；
Fig. 2 is the seed flow sensor surface structure schematic diagram of one embodiment of the invention；
Fig. 3 is the seed flow sensor sectional view of one embodiment of the invention；
Fig. 4 is the structural schematic diagram of the detection unit of one embodiment of the invention；
Fig. 5 is the signal processing circuit structure block diagram of one embodiment of the invention；
Fig. 6 A is the seed flow sensor schematic layout pattern of one embodiment of the invention；
Fig. 6 B is the seed flow sensor schematic layout pattern of another embodiment of the present invention；
Fig. 7 A is the corresponding flow detection alarm flow figure of Fig. 6 A sensor placement mode；
Fig. 7 B is the corresponding flow detection alarm flow figure of Fig. 6 B sensor placement mode.
Wherein, appended drawing reference
1 operating speed sensor
2 air-flow distributors
3 seed flow sensors
4 signal acquisition process units
41 differential amplifier circuits
42 bandwidth-limited circuits
43 charge amplifying circuits
44 envelope detection circuits
45 Schmidt triggers
5 car-mounted terminals
6 shells
7 detection pieces
8 pedestals
9a compensating unit
9b detection unit
10 tuning quality blocks
11 damping elements
12 piezoelectric ceramic pieces
13 crash panels
14 go out kind of a mouth
Specific embodiment
Structural principle and working principle of the invention are described in detail with reference to the accompanying drawing:
It is the flow detection warning device structural schematic diagram of one embodiment of the invention referring to Fig. 1, Fig. 1.Strength of the invention
Feeding wheat seeder flow detection warning device, comprising: car-mounted terminal 5 is equipped with leak stopping inspection software；Operating speed passes
Sensor 1 is mounted on the tail portion of seeder and connect with the car-mounted terminal 5, the real-time speed advanced for measuring the seeder
Degree, and the real-time speed is transmitted to the car-mounted terminal 5.The operating speed sensor 1 is preferably radar velocity measurement sensing
And ground device, and the radar velocity measurement sensor is mounted on sowing drive end unit, mounting axis and horizontal plane have an angle, i.e.,
At an angle；Seed flow sensor 3, be mounted on the air-flow distributor 2 of the seeder goes out kind of a mouth 14；And signal is adopted
Collect processing unit 4, is connect respectively with the seed flow sensor 3 and the car-mounted terminal 5, for acquiring the seed flow
Signal that sensor 3 exports simultaneously obtains instant flow after carrying out processing counting, and the instant flow information is passed through CAN bus biography
It is defeated to arrive the car-mounted terminal 5；Wherein, the leak stopping inspection software installed on the car-mounted terminal 5 is described real-time using what is received
Velocity information and the planting density of setting can converse the real-time application rate of setting, then believe with the instant flow received
Breath is compared, and obtains sowing qualification rate, leak stopping alarm is carried out if meeting alert if.The detection error of comprehensive sensor and
The response time that operating speed variation causes application rate to change, it should which reasonable alert if is set, and the present embodiment sets flow
Deviation is more than 20%, and is alarmed after the time is more than 2s.
Referring to fig. 2 and Fig. 3, Fig. 2 be one embodiment of the invention seed flow sensor surface structure schematic diagram, Fig. 3 is
The seed flow sensor sectional view of one embodiment of the invention.The embodiment of the present invention seed flow sensor 3 includes 6 He of shell
The detection piece 7 being mounted on the shell 6, the shell 6 are the pipeline passed through for seed.The shell 6 includes interconnecting piece
With Seed inspection area, interconnecting piece setting is at 6 both ends of shell and section is circle, the interconnecting piece respectively with the gas
Fluidic distributor 2 is connected with seed spout, and between the interconnecting piece of both ends, the square including sequential connection is straight in the Seed inspection area
Pipe, square circular arc bend pipe and square three sections of straight tube connect and compose, what the sectional area of the square straight tube was connect with both ends
The area of a circle of the interconnecting piece is equal, this kind of sub-channel makes the more stable conveying of air-flow using cross-section product design.The detection piece
7 include: pedestal 8, is mounted on the pipeline in the Seed inspection area, and the section of the pedestal 8 is located at the insides of pipes, for packet
Include the ladder-like of multiple steps, the joint face between the step in level, the step surface of each step be parallel to each other and
There is an angle with vertical direction, the angle of the step surface and vertical direction is preferably 30 degree；One compensating unit 9a, it is horizontal
It is mounted on the pedestal 8；And multiple detection unit 9b, it is separately mounted on the step surface, can be set on each step surface
Set one or two detection unit 9b.Seed hits detection unit 9b when passing through the pipeline in Seed inspection area, exports a decaying
Oscillator signal.
Referring to fig. 4, Fig. 4 is the structural schematic diagram of the detection unit of one embodiment of the invention.Detection unit 9b of the invention
As compensating unit 9a structure, respectively include: pass through crash panel 13, the piezoelectric ceramic piece of glue sequence secure bond together
12, damping element 11 and tuning quality block 10 draw signal wire and the signal acquisition process by the piezoelectric ceramic piece 12
The signal processing circuit of unit 4 connects, and the crash panel 13 is used to bear seed and hits the vibration generated and protect the piezoelectricity
Potsherd 12 avoids directly bearing to hit and damage, and the piezoelectric ceramic piece 12 is used to detect the vibration letter of the crash panel 13
Number, the damping element 11 and tuning quality block 10 absorb vibrational energy and acceleration signals for constituting tuned mass damper
Decaying.Wherein, the striking face of the crash panel 13 is preferably dimensioned to be long 25mm, wide 5mm, and the piezoelectric ceramic piece 12 is preferably Huang
Copper base, 12 surface of piezoelectric ceramic piece coat silver electrode, preferably a length of 24mm, and width is the rectangle of 5mm, with a thickness of
0.1mm, the signal wire are respectively welded in the brass substrate and silver electrode.
Compensating unit 9a is identical with detection unit 9b hardware composition, and only effect is different, in order to avoid by seed
It hits, compensating unit 9a is in horizontal mode, for inhibiting extraneous vibration or electromagnetic interference；Since the two has similar building ring
Border, so the interference signal that the various factors such as vibration, electromagnetism, stream pressure, temperature generate has size, the similar wave of shape
Shape is handled by subsequent conditioning circuit, can be good at eliminating external interference.The angle of detection unit 9b and vertical direction cannot be too
It is small, seed can be rebounded go back in this way, increase energy consumption, thereby increases and it is possible to caused the secondary impact of seed, increase counting error；Folder
Angle is too big, and the impact force of seed is too small, is not easy to detect, and will cause seed and slide on the surface detection unit 9b, leads to generation
Signal is no longer standard damping vibration deamplification, and is obviously prolonged the time for once hitting signal decaying, may finally be led
It causes repeat count and is unfavorable for high speed seed counting；Another situation is that the signal and the shock signal of subsequent seed are mixed in one
It rises, will cause error of omission.
It is the signal processing circuit structure block diagram of one embodiment of the invention referring to Fig. 5, Fig. 5.The signal acquisition process list
Member 4 includes multiple signals processing circuit, microprocessor and CAN bus communication module.It include poor per signal processing circuit all the way
Divide amplifying circuit 41, bandwidth-limited circuit 42, charge amplifying circuit 43, envelope detection circuit 44 and Schmidt trigger 45, institute
Two input end signals for stating differential amplifier circuit 41 are respectively the detection signal and compensating unit 9a of a detection unit 9b
Thermal compensation signal, the differential amplifier circuit 41 are used to inhibit interference to believe to after the detection signal and thermal compensation signal difference processing
Number；Vibration frequency caused by 42 permission seeds of the bandwidth-limited circuit are hit passes through, for further suppressing other clutters
Interference signal；The charge amplifying circuit 43 is used to faint signal amplifying processing；The envelope detection circuit 44 is used
In amplified multimodal damping vibration attenuation oscillator signal is converted into single peak value signal；The Schmidt trigger 45 is used for mould
Quasi- signal rear output pulse signal compared with reference voltage can avoid accidentally touching caused by noise signal compared with general comparator
Hair, adjusting variable resistance can change the sensitivity of sensor.Output of the signal after processing circuit processes is a pulse letter
Number；Compensating unit 9a is identical with the detection unit 9b for detecting seed shock, can guarantee that compensating unit 9a and detection are single
First 9b is exported under same disturbance factor with interference about the same, then eliminates machine by the difference processing of signal
Vibration or other electromagnetic interferences.Microprocessor will acquire each road pulse signal and count and pass through CAN bus for flow information
It is transferred to car-mounted terminal 5.Car-mounted terminal 5 determines real-time flow according to operating speed, when the seed flow and setting detected
Seed flow difference be more than 20% and then carry out sound-light alarm more than 2s in this state.
The mounting means of seed flow sensor 3 can have two class forms, be the present invention one referring to Fig. 6 A and Fig. 6 B, Fig. 6 A
The seed flow sensor schematic layout pattern of embodiment, Fig. 6 B are that the seed flow sensor layout of another embodiment of the present invention is shown
It is intended to.The layout of seed flow sensor 3 can be there are two types of mode, and one is kind of the mouths 14 that goes out of each air-flow distributor 2 to pacify
The seed flow sensor 3 is filled, the flow Rn of each kind of mouth 14 out, but the kind subflow used can be obtained in real time in this way
3 quantity of quantity sensor is more, and the CAN interface for needing to extend is also more.Another kind is to make kind of mouth n air-flow of 14 quantity at interval of one
Kind of the mouth 14 that goes out of distributor 2 installs a seed flow sensor 3, and wherein n is integer and n >=1.Assuming that one, interval,
Such mounting means reduces the quantity of seed flow sensor 3 quantity and data transmission interface, can be with save the cost, still
The flow of each seed spout cannot intuitively be obtained.
Pneumatic conveying type wheat seeder flow detection alarm method of the invention, using above-mentioned Pneumatic conveying type wheat
Seeder flow detection warning device carries out application rate and leak stopping detection and alarm, includes the following steps:
Step S100, the real-time speed that the seeder advances is measured, and the real-time speed is transmitted to described vehicle-mounted
Terminal 5；
Step S200, it acquires the signal that the seed flow sensor 3 exports and obtains instant flow after being handled, it will
The instant flow is transferred to the car-mounted terminal 5；
Step S300, the described car-mounted terminal 5 is calculated using the real-time speed received and the planting density of setting
Set real-time application rate；
Step S400, it after the described car-mounted terminal 5 receives the instant data on flows Fn of n-th of sensor, first determines whether to set
Whether fixed real-time application rate F0 is 0, shows that flow percentage Rn is 100% if F0 is 0；Fn/F0 is calculated if F0 is not 0,
Obtain flow percentage Rn, the value of 5 real-time display Rn of car-mounted terminal；
Step S500, when kind of the mouth 14 that goes out of each air-flow distributor 2 installs a seed flow sensor 3
When (referring to Fig. 6 A, Fig. 7 A), 5 error in judgement of car-mounted terminal | Rn-100% | absolute value whether be more than setting alarm
Threshold value M% carries out sound-light alarm if being more than, and re-execute the steps S400, directly re-execute the steps if being no more than
S400；When at interval of n air-flow distributor 2 go out kind of mouth 14 a seed flow sensor 3 is installed when (referring to Fig. 6 B,
Fig. 7 B), the car-mounted terminal 5 judge Rn-100% whether be more than setting alarm threshold value N% or 100%-Rn whether be more than
The alarm threshold value M% of setting, wherein 0 < N% < M% carries out sound-light alarm if being more than, and re-execute the steps S400, if not
More than then directly re-executeing the steps S400.
The present invention is different according to 3 mounting means of seed flow sensor, and broadcast leakage detection method will also do corresponding variation, such as
The mounting means of Fig. 7 A corresponding diagram 6A, after car-mounted terminal 5 receives the data on flows Fn of n-th of seed flow sensor 3, first
Judge to set whether flow F0 is that 0, F0 is meant that Seeding Quantity in the unit time, shows that flow percentage Rn is if 0
100%, if not 0 calculates Fn/F0, obtain flow percentage Rn, the value of 5 real-time display Rn of car-mounted terminal；It subsequently determines whether to miss
Absolute value of the difference whether be more than setting alarm threshold value M%, if be more than if carry out sound-light alarm, program enters subsequent cycle, if
No more than being directly entered subsequent cycle.
The mounting means of Fig. 7 B corresponding diagram 6B, relative to Fig. 7 A, the Rule of judgment of leak stopping alarm makes appropriate change: when
When 100%-Rn is greater than M%, it can be determined that the seed spout road where seed flow sensor n blocks, and directly alarming, this is defeated
Kind pipe blocks；When Rn-100% is greater than N%, it is possible to determine that pipeline blocks near seed flow sensor n,
Can only alarm the seed spout road that may be blocked, and need voluntarily parking checking confirmation, N% value should be in 0 < N% < M% range.Inspection
The principle for surveying the seed spout blocking for not installing seed flow sensor 3 is: when the blocking of a certain seed spout, will affect other pipelines
Application rate, especially the pipeline near it is influenced it is more serious, due to shunting seed, when a certain pipeline blockage other
The changes in flow rate of pipeline is less than the variation of blocking pipeline, in order to reach the testing goal of same precision, so N% should be less than
M%.Threshold value M% and N% should comprehensively consider the requirement such as detection error, operating lag and qualification rate, the selection of value in setting
Very big on the accuracy of broadcast leakage alarm and rapidity influence, the value that the present embodiment sets M is preferably 20.
The present invention can guarantee seed flow measurement precision in rugged environment, and flow information is detection control wheat
Real-time planting density provides guarantee.Energy can significantly reducing by sowing flow early stage there is broadcast leakage or blocking
It alarms in advance, reduces and lost caused by blocking, and can realize alarm when relatively large deviation occurs in planting density；It can
Location of fault is rapidly and accurately determined according to warning message, to debug in time.
Certainly, the present invention can also have other various embodiments, without deviating from the spirit and substance of the present invention, ripe
It knows those skilled in the art and makes various corresponding changes and modifications, but these corresponding changes and change in accordance with the present invention
Shape all should fall within the scope of protection of the appended claims of the present invention.
Claims (10)
1. a kind of Pneumatic conveying type wheat seeder flow detection warning device characterized by comprising
Car-mounted terminal；
Operating speed sensor is mounted on the tail portion of seeder and connect with the car-mounted terminal, for measuring the seeder
The real-time speed of advance, and the real-time speed is transmitted to the car-mounted terminal；
Seed flow sensor, be mounted on the air-flow distributor of the seeder goes out kind of a mouth；And
Signal acquisition process unit is connect with the seed flow sensor and the car-mounted terminal respectively, described for acquiring
The signal of seed flow sensor output simultaneously obtains instant flow after being handled, and the instant flow is transferred to described vehicle-mounted
Terminal；
Wherein, the car-mounted terminal calculates the real-time of setting using the real-time speed received and the planting density of setting
Application rate, then be compared with the instant flow received, leak stopping alarm is carried out if meeting alert if.
2. Pneumatic conveying type wheat seeder flow detection warning device as described in claim 1, which is characterized in that the work
Industry velocity sensor is radar velocity measurement sensor, and the mounting axis of the radar velocity measurement sensor and horizontal plane have a folder
Angle.
3. Pneumatic conveying type wheat seeder flow detection warning device as claimed in claim 1 or 2, which is characterized in that institute
Stating seed flow sensor includes the detection piece of shell and installation on the housing, and the shell includes passing through for seed
Pipeline, the detection piece include:
Pedestal is mounted on the pipeline, and it includes multiple steps that the section of the pedestal, which is located at the side in the pipeline to be,
Ladder-like, in level, the step surface of each step is parallel to each other and has with vertical direction the joint face between the step
There is an angle；
Compensating unit is horizontally arranged on the pedestal；And
Multiple detection units are separately mounted on the step surface.
4. Pneumatic conveying type wheat seeder flow detection warning device as claimed in claim 3, which is characterized in that described
The angle of terrace and vertical direction is 30 degree.
5. Pneumatic conveying type wheat seeder flow detection warning device as claimed in claim 3, which is characterized in that the inspection
Survey unit and compensating unit respectively include: crash panel, piezoelectric ceramic piece, damping element and the tuning quality being sequentially bonded together
Block is drawn signal wire by the piezoelectric ceramic piece and is connect with the signal processing circuit of the signal acquisition process unit, described
Crash panel is used to bear seed and hits the vibration generated and protect the piezoelectric ceramic piece, and the piezoelectric ceramic piece is for detecting institute
The vibration signal of crash panel, the damping element and tuning quality block are stated for constituting tuned mass damper to absorb vibrational energy
It measures and acceleration signals decays.
6. Pneumatic conveying type wheat seeder flow detection warning device as claimed in claim 5, which is characterized in that described to hit
The striking face of plate is hit having a size of long 25mm, wide 5mm, the piezoelectric ceramic piece is brass substrate, and the piezoelectric ceramic piece surface applies
Silver electrode is covered, the signal wire is respectively welded in the brass substrate and silver electrode.
7. Pneumatic conveying type wheat seeder flow detection warning device as claimed in claim 3, which is characterized in that the shell
Body includes interconnecting piece and Seed inspection area, and the interconnecting piece setting is at the shell both ends and section is round, the interconnecting piece
It is connect respectively with the air-flow distributor and seed spout, the Seed inspection area connects between the interconnecting piece, including sequentially
Square straight tube, square circular arc bend pipe and the square straight tube connect, what the sectional area of the square straight tube was connect with both ends
The area of a circle of the interconnecting piece is equal.
8. Pneumatic conveying type wheat seeder flow detection warning device as claimed in claim 3, which is characterized in that the letter
The signal processing circuit of number acquisition process unit includes difference channel, bandwidth-limited circuit, charge amplifying circuit, envelope detection electricity
Road and Schmidt trigger, two input end signals of the difference channel are respectively the detection signal of the detection unit
With the thermal compensation signal of compensating unit, the difference channel is used for dry to inhibition after the detection signal and thermal compensation signal difference processing
Disturb signal；Vibration frequency caused by the bandwidth-limited circuit only allows seed to hit passes through, miscellaneous for further suppressing other
Interference wave signal；The charge amplifying circuit is used to faint signal amplifying processing；The envelope detection circuit is used for
Amplified multimodal damping vibration attenuation oscillator signal is converted into single peak value signal；The Schmidt trigger will be for that will simulate letter
Output pulse signal after number compared with reference voltage.
9. Pneumatic conveying type wheat seeder flow detection warning device as claimed in claim 3, which is characterized in that Mei Gesuo
Kind of the mouth that goes out for stating air-flow distributor all installs the seed flow sensor, or the kind out at interval of n air-flow distributor
Mouth one seed flow sensor of installation, wherein n is integer and n >=1.
10. a kind of Pneumatic conveying type wheat seeder flow detection alarm method, which is characterized in that use the claims 1-
Pneumatic conveying type wheat seeder flow detection warning device described in any one of 9 carries out application rate and leak stopping detection and report
It is alert, include the following steps:
The real-time speed that S100, the measurement seeder advance, and the real-time speed is transmitted to the car-mounted terminal；
S200, the signal of acquisition seed flow sensor output simultaneously obtain instant flow after being handled, will be described instant
Flow is transferred to the car-mounted terminal；
S300, the car-mounted terminal calculate setting using the planting density of the real-time speed received and setting and broadcast in real time
Kind amount；
After S400, the car-mounted terminal receive the instant data on flows Fn of n-th of sensor, first determine whether to set real-time sowing
It measures whether F0 is 0, shows that flow percentage Rn is 100% if F0 is 0；Fn/F0 is calculated if F0 is not 0, obtains flow hundred
Divide than Rn, the value of car-mounted terminal real-time display Rn；
S500, when each air-flow distributor is when going out kind of mouth and installing a seed flow sensor, it is described vehicle-mounted
Terminal error in judgement | Rn-100% | absolute value whether be more than setting alarm threshold value M%, if be more than if carry out acousto-optic report
It is alert, and it is re-execute the steps S400, S400 is directly re-execute the steps if being no more than；When at interval of n air-flow distributor
Out kind mouth install a seed flow sensor when, the car-mounted terminal judge Rn-100% whether be more than setting report
Alert threshold value N% or 100%-Rn whether be more than setting alarm threshold value M%, wherein 0 < N% < M% carries out acousto-optic if being more than
Alarm, and it is re-execute the steps S400, S400 is directly re-execute the steps if being no more than.
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| CN201910451001.0A CN110196087B (en) | 2019-05-28 | 2019-05-28 | Flow detection alarm device and method for pneumatic conveying type wheat seeder |
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| CN201910451001.0A CN110196087B (en) | 2019-05-28 | 2019-05-28 | Flow detection alarm device and method for pneumatic conveying type wheat seeder |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112335381A (en) * | 2020-11-04 | 2021-02-09 | 淮安文信科技有限公司 | Flow detection alarm device of pneumatic conveying type wheat seeder and use method |
| CN113597848A (en) * | 2021-06-07 | 2021-11-05 | 中国农业机械化科学研究院 | Small-sized seed dynamic tracking self-adaptive reseeding measurement and control device and method |
| CN115773777A (en) * | 2023-02-13 | 2023-03-10 | 济宁中堃农业机械科技有限公司 | Cereal seeding rate monitoring devices |
| CN117490786A (en) * | 2023-12-29 | 2024-02-02 | 四川省农业机械科学研究院 | Flow detection alarm device of pneumatic conveying type corn planter |
| US11980122B2 (en) | 2021-09-29 | 2024-05-14 | Cnh Industrial Canada, Ltd. | System and method for controlling product conveyance in response to near-plug detection |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3475966A (en) * | 1968-04-19 | 1969-11-04 | David P Witteman | Apparatus for determining feeding rate of grain drills or the like |
| US3608787A (en) * | 1968-07-24 | 1971-09-28 | Nodet Gougis Sa | Device for eliminating double seeds in distributors for sowing machines |
| CN2540084Y (en) * | 2002-05-15 | 2003-03-19 | 新疆兵团农机推广中心 | Seeder with seed pneumatic suction device |
| RU2004132800A (en) * | 2004-11-10 | 2006-04-20 | Федеральное государственное образовательное учреждение высшего профессионального образовани "Азово-Черноморска государственна агроинженерна академи " (ФГОУ ВПО АЧГАА) (RU) | DEVICE FOR CONTROL OF QUALITY OF OPERATION OF PNEUMATIC SOWING UNITS |
| DE102006021473A1 (en) * | 2006-05-09 | 2007-11-15 | Amazonen-Werke H. Dreyer Gmbh & Co. Kg | Sower for deploying pressure-sensitive oil seeds e.g. rapeseed, has central dosing organ exhibiting cell wheel with cell bars that divide individual cells from each other, where cell bars are formed in elastic manner |
| CN101548602A (en) * | 2009-04-28 | 2009-10-07 | 河南科技大学 | Seed metering device used in air-jet type high-speed and no-tillage precision seeder |
| CN201378935Y (en) * | 2009-03-18 | 2010-01-13 | 东风汽车股份有限公司 | Pneumatic precision seed sowing device |
| US20100180808A1 (en) * | 2009-01-22 | 2010-07-22 | Liu James Z | Pressure Sensing System For A Planter |
| CN101790913A (en) * | 2010-04-12 | 2010-08-04 | 卢绍奎 | Seeding method and special electronic seeder |
| CN102273342A (en) * | 2011-06-17 | 2011-12-14 | 淮海工学院 | Plug seedling precision seeder |
| CN103120057A (en) * | 2013-01-28 | 2013-05-29 | 河南科技大学 | Miss-seeding detection device and method for corn precision seeder |
| CN103141187A (en) * | 2013-03-27 | 2013-06-12 | 江苏大学 | Electromechanical-type leveling device of seedling raising precision planter on farms |
| CN203597052U (en) * | 2013-11-14 | 2014-05-21 | 中工国际工程股份有限公司 | Seeder |
| CN103808366A (en) * | 2014-02-20 | 2014-05-21 | 北京农业智能装备技术研究中心 | Seeding monitoring method, device and system based on wheat seeder |
| CN105325102A (en) * | 2014-07-18 | 2016-02-17 | 中国农业机械化科学研究院 | Film laying seeder and duckbill-type seed sowing device miss-seeding inspection method and apparatus |
| EP3008988A1 (en) * | 2014-10-16 | 2016-04-20 | Müller-Elektronik GmbH & Co. KG | Method and device for regulating or detecting mass particles |
| CN106134579A (en) * | 2015-04-03 | 2016-11-23 | 中国农业机械化科学研究院 | Pneumatic precision planting with sowing machine monitoring device and monitoring method |
| CN106856739A (en) * | 2015-12-11 | 2017-06-20 | 魏莹 | A kind of wheat two-wire Precision Seeding intelligence control system |
-
2019
- 2019-05-28 CN CN201910451001.0A patent/CN110196087B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3475966A (en) * | 1968-04-19 | 1969-11-04 | David P Witteman | Apparatus for determining feeding rate of grain drills or the like |
| US3608787A (en) * | 1968-07-24 | 1971-09-28 | Nodet Gougis Sa | Device for eliminating double seeds in distributors for sowing machines |
| CN2540084Y (en) * | 2002-05-15 | 2003-03-19 | 新疆兵团农机推广中心 | Seeder with seed pneumatic suction device |
| RU2004132800A (en) * | 2004-11-10 | 2006-04-20 | Федеральное государственное образовательное учреждение высшего профессионального образовани "Азово-Черноморска государственна агроинженерна академи " (ФГОУ ВПО АЧГАА) (RU) | DEVICE FOR CONTROL OF QUALITY OF OPERATION OF PNEUMATIC SOWING UNITS |
| DE102006021473A1 (en) * | 2006-05-09 | 2007-11-15 | Amazonen-Werke H. Dreyer Gmbh & Co. Kg | Sower for deploying pressure-sensitive oil seeds e.g. rapeseed, has central dosing organ exhibiting cell wheel with cell bars that divide individual cells from each other, where cell bars are formed in elastic manner |
| US20100180808A1 (en) * | 2009-01-22 | 2010-07-22 | Liu James Z | Pressure Sensing System For A Planter |
| CN201378935Y (en) * | 2009-03-18 | 2010-01-13 | 东风汽车股份有限公司 | Pneumatic precision seed sowing device |
| CN101548602A (en) * | 2009-04-28 | 2009-10-07 | 河南科技大学 | Seed metering device used in air-jet type high-speed and no-tillage precision seeder |
| CN101790913A (en) * | 2010-04-12 | 2010-08-04 | 卢绍奎 | Seeding method and special electronic seeder |
| CN102273342A (en) * | 2011-06-17 | 2011-12-14 | 淮海工学院 | Plug seedling precision seeder |
| CN103120057A (en) * | 2013-01-28 | 2013-05-29 | 河南科技大学 | Miss-seeding detection device and method for corn precision seeder |
| CN103141187A (en) * | 2013-03-27 | 2013-06-12 | 江苏大学 | Electromechanical-type leveling device of seedling raising precision planter on farms |
| CN203597052U (en) * | 2013-11-14 | 2014-05-21 | 中工国际工程股份有限公司 | Seeder |
| CN103808366A (en) * | 2014-02-20 | 2014-05-21 | 北京农业智能装备技术研究中心 | Seeding monitoring method, device and system based on wheat seeder |
| CN105325102A (en) * | 2014-07-18 | 2016-02-17 | 中国农业机械化科学研究院 | Film laying seeder and duckbill-type seed sowing device miss-seeding inspection method and apparatus |
| EP3008988A1 (en) * | 2014-10-16 | 2016-04-20 | Müller-Elektronik GmbH & Co. KG | Method and device for regulating or detecting mass particles |
| CN106134579A (en) * | 2015-04-03 | 2016-11-23 | 中国农业机械化科学研究院 | Pneumatic precision planting with sowing machine monitoring device and monitoring method |
| CN106856739A (en) * | 2015-12-11 | 2017-06-20 | 魏莹 | A kind of wheat two-wire Precision Seeding intelligence control system |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112335381A (en) * | 2020-11-04 | 2021-02-09 | 淮安文信科技有限公司 | Flow detection alarm device of pneumatic conveying type wheat seeder and use method |
| CN112335381B (en) * | 2020-11-04 | 2022-06-14 | 淮安文信科技有限公司 | Flow detection alarm device of pneumatic conveying type wheat seeder and use method |
| CN113597848A (en) * | 2021-06-07 | 2021-11-05 | 中国农业机械化科学研究院 | Small-sized seed dynamic tracking self-adaptive reseeding measurement and control device and method |
| CN113597848B (en) * | 2021-06-07 | 2022-07-22 | 中国农业机械化科学研究院 | Small-sized seed dynamic tracking self-adaptive reseeding measurement and control device and method |
| US11980122B2 (en) | 2021-09-29 | 2024-05-14 | Cnh Industrial Canada, Ltd. | System and method for controlling product conveyance in response to near-plug detection |
| CN115773777A (en) * | 2023-02-13 | 2023-03-10 | 济宁中堃农业机械科技有限公司 | Cereal seeding rate monitoring devices |
| CN115773777B (en) * | 2023-02-13 | 2023-06-09 | 济宁中堃农业机械科技有限公司 | Cereal seeding rate monitoring devices |
| CN117490786A (en) * | 2023-12-29 | 2024-02-02 | 四川省农业机械科学研究院 | Flow detection alarm device of pneumatic conveying type corn planter |
| CN117490786B (en) * | 2023-12-29 | 2024-03-12 | 四川省农业机械科学研究院 | Flow detection alarm device of pneumatic conveying type corn planter |
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