CN208029404U - A kind of Radix Notoginseng precision drill broadcast leakage detecting system of non-blind area - Google Patents
A kind of Radix Notoginseng precision drill broadcast leakage detecting system of non-blind area Download PDFInfo
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- CN208029404U CN208029404U CN201820452366.6U CN201820452366U CN208029404U CN 208029404 U CN208029404 U CN 208029404U CN 201820452366 U CN201820452366 U CN 201820452366U CN 208029404 U CN208029404 U CN 208029404U
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- infrared
- radix notoginseng
- broadcast leakage
- blind area
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Abstract
The utility model is related to a kind of Radix Notoginseng precision drill broadcast leakage detecting systems of non-blind area, belong to agricultural mechanical equipment field, the Radix Notoginseng precision drill broadcast leakage detecting system of the non-blind area includes the grain conductor of Radix Notoginseng seeder and rounded array is arranged in three infrared detection modules on grain conductor, infrared detection module includes that an infrared transmitting tube and three infrared receiving tubes, infrared detection module are connect by signal processing circuit with single chip circuit；The utility model uses the design of circular configuration, realizes and is detected to the seed except half-intensity beam angle, hence it is evident that increases infrared detection effective coverage, and does not influence falling while being also convenient for installing for seed；Also, by adjusting add circuit resistance, increase sensitivity of the circuit to faint seed signal；Meanwhile avoiding broadcast leakage caused by when seeder pauses and calculating, improve the Stability and veracity of broadcast leakage detection.
Description
Technical field
The utility model belongs to agricultural mechanical equipment field, specifically, being related to a kind of Radix Notoginseng precise sowing of non-blind area
Machine broadcast leakage detecting system.
Background technology
Radix Notoginseng is the distinctive rare medicinal herbs in Yunnan Province, is known as Crop Diseases in Yunnan bright " jewel ".Since Radix Notoginseng is unique
Medicinal efficacy, cultivated area and total output cumulative year after year.To realize that Radix Notoginseng industry quickly develops, realize that the mechanization of Radix Notoginseng is broadcast
Kind, notoginseng planting efficiency is improved, is sowed using Radix Notoginseng precision drill, is the key that realize that Radix Notoginseng industry rapidly and efficiently develops.
There is phenomena such as broadcast leakage, replay, block in current Radix Notoginseng precision drill, influence seeding quality, set for this phenomenon at work
Various work condition inspection systems are counted.The agriculture requirement of mating Radix Notoginseng sowing is higher with slot type Radix Notoginseng nursery, needs in greenhouse
Slot in operation, it is desirable that monoseeding, and distance between rows and hills is small, seed level is shallow for Radix Notoginseng sowing, the line-spacing of sowing, spacing in the rows be required to for
50mm, depth of planting 10mm, seeding quality and requirement height.Panax notoginseng seeds particle size range is big at seeding time, and this requires detections
Device has higher precision and sensitivity, and existing broadcast leakage detection device is since the layout of its infrared sensor is in half-intensity beam angle
Within, there are certain blind areas, reduce the accuracy of broadcast leakage detection.
Invention content
The problem of for background technology, the utility model are directed to current Radix Notoginseng detecting system asking there are blind area
Topic, it is proposed that a kind of Radix Notoginseng precision drill broadcast leakage detecting system of non-blind area can be realized to the seed except half-intensity beam angle
It is detected, is effectively increased infrared detection region；Shape in view of grain conductor and the normal whereabouts for not influencing seed, devise
Circular sensor arrangement；In order to improve the accuracy of broadcast leakage detection, consider except part is dry by comparing circuit on hardware circuit
It disturbs, in programming, T1 is set as count mode, by judging whether counter T1 values are zero, as falling for seed
Standard；When to the measurement of spacing in the rows, using Hall sensor, broadcast leakage caused by when seeder will not be caused to pause calculates；Right
In view of economically feasible, reliable and stable requirement pass through signal using microcontroller as control core in the selection of control platform
Processing circuit, logic circuit realize the detection to broadcast leakage, replay.
To achieve the above object, the utility model is achieved by the following technical solution：The rounded battle array on grain conductor
Row three infrared detection modules of arrangement, infrared detection module are connect by signal processing circuit with single chip circuit, pocket roller
Outside be equipped with Hall sensor, Hall sensor connect by Hall circuit with single chip circuit；The infrared detection module
Including an infrared transmitting tube and three infrared receiving tubes, wherein the infrared receiving tube face infrared transmitting tube arrangement at middle part, two
The infrared receiving tube of side is arranged in except half strong angle of infrared transmitting tube；It is infrared transmitting tube and infrared receiving tube, infrared
It is separated by 30 ° between reception pipe and infrared receiving tube and arranges successively and is arranged on grain conductor.
Signal processing circuit includes add circuit, comparison circuit, logical operation circuit, belongs to same infrared detection module
Infrared receiving tube is connected to the inverting input of operational amplifier through diode, resistance respectively, constitutes reverse phase add circuit, addition electricity
Road output is connected to comparison circuit, and comparison circuit output is connected to logical operation circuit, and logical operation circuit output end is electromechanical with monolithic
Road connects.
The small magnet piece of Hall sensor is mounted on the side of seeder pocket roller, is rotated with pocket roller, leads to
It crosses Hall circuit and the rotating cycle of pocket roller is converted into Hall pulse signal, while Hall circuit is acquired using counter T0
The pulse signal of output.
The beneficial effects of the utility model：
The utility model uses the design of circular configuration, realizes and is detected to the seed except half-intensity beam angle, hence it is evident that
Increase infrared detection effective coverage, and does not influence falling while being also convenient for installing for seed；By adjusting the resistance of add circuit resistance
Value increases sensitivity of the circuit to faint seed signal, can realize the detection to different-grain diameter seed；In the measurement to spacing in the rows
When, using Hall sensor, broadcast leakage caused by when seeder will not be caused to pause calculates；In programming, T1 is set as counting
Digital modeling, as the standard of seed fallen, improves the accurate of broadcast leakage detection by judging whether counter T1 values are zero
Property.
Description of the drawings
Fig. 1 is the sensor placement schematic diagram of the utility model；
Fig. 2 is the system operation flow diagram of the utility model；
Fig. 3 is the infrared signal detection circuit of the utility model；
Fig. 4 is the logical operation circuit of the utility model；
Fig. 5 is the single chip circuit of the utility model；
Fig. 6 is the Hall circuit of the utility model；
Fig. 7 is the audible and visible alarm circuit of the utility model；
Specific implementation mode
In order to keep the purpose of this utility model, technical solution and advantageous effect clearer, below in conjunction with attached drawing, to this
The preferred embodiment of utility model is described in detail, to facilitate the technical staff to understand.
As shown in figs. 1-7, when the shape, structure to sensor is designed, kind is led in conjunction with Radix Notoginseng seeder cylindrical shape
Pipe 1 devises the circular configuration layout of infrared detection module, the Radix Notoginseng precision drill broadcast leakage detecting system of the non-blind area
Grain conductor 1 and rounded array including Radix Notoginseng seeder are arranged in three infrared detection modules on grain conductor 1, described
Infrared detection module includes an infrared transmitting tube 2 and three infrared receiving tubes 3, and a diameter of 3mm of infrared-emitting diode such as schemes
Shown in 1, the angles β are the half-intensity beam angle of infrared transmitting tube 2, and half-intensity beam angle is 25 degree, a diameter of 3mm of infrared receiving diode, wherein
The 3 face infrared transmitting tube 2 of infrared receiving tube at middle part arranges that the infrared receiving tube 3 of both sides is arranged in infrared transmitting tube 2
Half strong angle except；After three infrared detection modules are arranged on grain conductor 1, there are three infrared transmitting tube 2 and nine are red altogether
It is separated by 30 ° between outer reception pipe 3, infrared transmitting tube 2 and infrared receiving tube 3, infrared receiving tube 3 and infrared receiving tube 3 to arrange successively
Open arrangement.
As shown in figure 3, infrared circuit includes add circuit, comparison circuit, belong to the red of same infrared detection module
Outer reception pipe 3 is connected to the inverting input of operational amplifier through diode, resistance respectively, reverse phase add circuit is constituted, due to being
System is whole, and there are three infrared detection module, i.e., the corresponding output signal with No. three add circuits, the anti-phase inputs of comparison circuit
Reference voltage is terminated, add circuit exports the in-phase input end for connecing comparison circuit, and the output of comparison circuit terminates to logical operation
Circuit.When seed is fallen, no matter block within half-intensity beam angle or except infrared light, by influencing, infrared receiving tube 3 is right
The reception of infrared light influences the input current of adder calculator, so that add circuit output voltage declines, comparison circuit
Analog signal dress is changed to low and high level, logic circuit is sent to be handled.
It is illustrated in figure 4 logical operation circuit, and not circuit is selected to be transformed to signal processing to meet monolithic electromechanics
The signal of device characteristic, three infrared detection modules correspond to the detection output of three tunnels, and the input terminal one of and not circuit terminates height
Level, the output of a termination infrared circuit realize that the processing to signal converts, and logical transition state is as shown in table 1, with
NOT logic computing circuit output end is connect with single chip circuit.
1 logical transition state table of table
When work, by adjusting add circuit resistance, increase sensitivity of the circuit to small-signal, can realize pair
The detection of different-grain diameter seed；Also, when seed is fallen except half intensity angle beta, infrared receiving tube 3 receives the intensity of near infrared light
It is relatively low, it is not high to seed signal susceptibility, therefore by adjusting corresponding resistor resistance value in add circuit, can be improved and signal is put
Big multiple promotes the accuracy of detection.
On hardware circuit, by adjusting comparison circuit inverting input reference voltage, when smaller ash bits pass through infrared inspection
When surveying the detection zone of module, the change amount signal generated is smaller than reference voltage, which will not pass through comparison circuit, i.e.,
Consider the interference of ash disposal bits.
As shown in fig. 6, the small magnet piece of Hall sensor to be mounted on to the side of Radix Notoginseng precision drill pocket roller, make
It is rotated with pocket roller, and when pocket roller rotates a circle, the induction end of Hall sensor can detect a Hall
Pulse, while using the pulse signal of counter T0 acquisition Hall circuit output, and be converted to spacing in the rows, according to algorithm by this pulse
The count value of signal, as the foundation for judging whether generation replay, broadcast leakage event.
In programming, using counter T1 logical circuit of counter circuit output pulses, while judging whether counter T1 is zero
To determine whether there is seed to fall by the way of external interrupt, because when seed is fallen, and not circuit has three
Road exports, and output pulse signal is asynchronous, and the stability and accuracy of broadcast leakage detection can be improved with the mode of counting.
As shown in fig. 7, the spacing in the rows measured is compared by microcontroller with the spacing in the rows of setting, when more than the spacing in the rows of setting then
For broadcast leakage, buzzer warning is driven, is then replay when the spacing between two seeds is too small, drives luminous tube constantly to dodge immediately
It is bright.
Finally illustrate, preferred embodiment above is merely intended for describing the technical solutions of the present application, but not for limiting the present application, to the greatest extent
Pipe has been described in detail the utility model by above preferred embodiment, but those skilled in the art should manage
Solution, can in the form and details make it various changes, without departing from the utility model claims book institute
The range of restriction.
Claims (3)
1. a kind of Radix Notoginseng precision drill broadcast leakage detecting system of non-blind area, including the grain conductor of seeder and pocket roller,
It is characterized in that：Rounded array arranges that three infrared detection modules, infrared detection module pass through signal processing electricity on grain conductor
Road is connect with single chip circuit, and the outside of pocket roller is equipped with Hall sensor, and Hall sensor passes through Hall circuit and monolithic
Electromechanical road connection；The infrared detection module include an infrared transmitting tube and three infrared receiving tubes, wherein middle part it is infrared
Reception pipe face infrared transmitting tube arranges that the infrared receiving tube of both sides is arranged in except half strong angle of infrared transmitting tube；
It is separated by 30 ° between infrared transmitting tube and infrared receiving tube, infrared receiving tube and infrared receiving tube and arranges successively and is arranged in grain conductor
On.
2. a kind of Radix Notoginseng precision drill broadcast leakage detecting system of non-blind area according to claim 1, it is characterised in that：Letter
Number processing circuit includes add circuit, comparison circuit, logical operation circuit, belongs to the infrared receiving tube of same infrared detection module
The inverting input of operational amplifier is connected to through diode, resistance respectively, constitutes reverse phase add circuit, add circuit output is connected to
Comparison circuit, comparison circuit output are connected to logical operation circuit, and logical operation circuit output end is connect with single chip circuit.
3. a kind of Radix Notoginseng precision drill broadcast leakage detecting system of non-blind area according to claim 1, it is characterised in that：Suddenly
The small magnet piece of your sensor is mounted on the side of seeder pocket roller, is rotated with pocket roller, passes through Hall circuit
The rotating cycle of pocket roller is converted into Hall pulse signal, while using the pulse of counter T0 acquisition Hall circuit outputs
Signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820452366.6U CN208029404U (en) | 2018-04-02 | 2018-04-02 | A kind of Radix Notoginseng precision drill broadcast leakage detecting system of non-blind area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820452366.6U CN208029404U (en) | 2018-04-02 | 2018-04-02 | A kind of Radix Notoginseng precision drill broadcast leakage detecting system of non-blind area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208029404U true CN208029404U (en) | 2018-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820452366.6U Expired - Fee Related CN208029404U (en) | 2018-04-02 | 2018-04-02 | A kind of Radix Notoginseng precision drill broadcast leakage detecting system of non-blind area |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110595553A (en) * | 2019-09-18 | 2019-12-20 | 华中农业大学 | LED visible light surface large and medium seed crop seed metering detection device |
| CN110646019A (en) * | 2019-09-18 | 2020-01-03 | 华中农业大学 | Seed crop seed metering detection device |
| CN112348148A (en) * | 2020-11-06 | 2021-02-09 | 黑龙江惠达科技发展有限公司 | Efficient equipment for detecting seeds and anti-interference method |
-
2018
- 2018-04-02 CN CN201820452366.6U patent/CN208029404U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110595553A (en) * | 2019-09-18 | 2019-12-20 | 华中农业大学 | LED visible light surface large and medium seed crop seed metering detection device |
| CN110646019A (en) * | 2019-09-18 | 2020-01-03 | 华中农业大学 | Seed crop seed metering detection device |
| CN110646019B (en) * | 2019-09-18 | 2021-11-30 | 华中农业大学 | Seed crop seed metering detection device |
| CN112348148A (en) * | 2020-11-06 | 2021-02-09 | 黑龙江惠达科技发展有限公司 | Efficient equipment for detecting seeds and anti-interference method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181102 Termination date: 20190402 |