CN204598638U - A kind of microwave broadcast leakage checkout gear for maize precise sowing machine - Google Patents
A kind of microwave broadcast leakage checkout gear for maize precise sowing machine Download PDFInfo
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- CN204598638U CN204598638U CN201520059139.3U CN201520059139U CN204598638U CN 204598638 U CN204598638 U CN 204598638U CN 201520059139 U CN201520059139 U CN 201520059139U CN 204598638 U CN204598638 U CN 204598638U
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- sowing machine
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- broadcast leakage
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Abstract
The utility model relates to a kind of microwave broadcast leakage checkout gear for maize precise sowing machine, comprise microwave remote sensor, frequency/voltage modular converter, voltage comparison module, processor and voice alarm module, microwave remote sensor is arranged on the discharging tube of maize precise sowing machine, the output of each microwave remote sensor is connected to the input of processor all successively by frequency/voltage modular converter and voltage comparison module, the output of processor also connects voice alarm module and liquid crystal display.Broadcast leakage checkout gear of the present utility model, when having broadcast leakage phenomenon to occur in corn seeding process, can detect in time and send warning, ensure that carrying out smoothly of sowing, effectively can improve sowing efficiency and seeding quality, be conducive to alleviating peasant burden, raise labour efficiency, the production capacity of expansion.
Description
Technical field
The utility model relates to test technique automatic field, is specifically related to a kind of microwave broadcast leakage checkout gear for maize precise sowing machine.
Background technology
Maize precise sowing machine tool technology is one and relates to the multi-disciplinary comprehensive advanced technologies such as agricultural machinery, agronomy, clay fertilizer, seed, plant protection, and current developed country has formed quite perfect system, and penetration and promotion application.Since the R and D of China's precision planter from 20 century 70s, comprehensively do not applied so far.In recent years, the constantly perfect and development of corn breeding and seeds processing treatment technology, agricultural chemicals, weed killer herbicide and water conservancy irrigation technology, become the reliable technology of maize precise sowing machine toolization to ensure, maize precise sowing machine toolization has become the principal character of modern seeding technique and the main development direction of seeding technique.
At present, maize precise sowing machine also needs the sowing performance and the efficiency that solve sower.Sower, in the process of field work, there will be the failed situation of sowing, such as seeder fault or broadcast less, broadcast leakage etc.And sower has the characteristic that overall process is closed when carrying out sowing work, operator cannot observe the situation that seed flows in seeding unit and grain tube intuitively.Feed shaft rotates unsuccessfully if the land wheel skidding occurred when seeding operation causes, seeding unit seeding plugging fault etc. all can cause one or more normally to sow, there is the situation of strip broadcast leakage, broadcast leakage can reduce farmers' income and cause the agriculture underproduction, therefore, in the process of maize precise sowing machine work, the duty of detection and control sower just becomes very necessary.
Utility model content
The purpose of this utility model is the deficiency for solving the problems of the technologies described above, and provides a kind of microwave broadcast leakage checkout gear for maize precise sowing machine.
The utility model is the deficiency solved the problems of the technologies described above, the technical scheme adopted is: a kind of microwave broadcast leakage checkout gear for maize precise sowing machine, this checkout gear comprises microwave remote sensor, frequency/voltage modular converter, voltage comparison module, processor and voice alarm module, the quantity of microwave remote sensor is identical with the quantity of the chimes pipe of maize precise sowing machine, microwave remote sensor is arranged on the discharging tube of maize precise sowing machine, the output of each microwave remote sensor is connected to the input of processor all successively by frequency/voltage modular converter and voltage comparison module, the output of processor also connects voice alarm module and liquid crystal display.LM339 comparator is included in described frequency/voltage modular converter.Described checkout gear also includes motor drive module, the input connection handling device of motor drive module, and the output of motor drive module is connected to the seeding drive motors of maize precise sowing machine.
beneficial effect
Microwave broadcast leakage checkout gear of the present utility model, when having broadcast leakage phenomenon to occur in corn seeding process, can detect in time and send warning, ensure that carrying out smoothly of sowing, effectively can improve sowing efficiency and seeding quality, be conducive to alleviating peasant burden, raise labour efficiency, the production capacity of expansion.
Accompanying drawing explanation
Fig. 1 is the microwave remote sensor installment state schematic diagram of the utility model microwave broadcast leakage checkout gear;
Fig. 2 is the operation principle schematic diagram of the utility model microwave broadcast leakage checkout gear;
Fig. 3 is the operation principle schematic diagram of the utility model microwave broadcast leakage checkout gear frequency/voltage modular converter;
Fig. 4 is the operation principle schematic diagram of the utility model microwave broadcast leakage checkout gear voltage comparison module;
Reference numeral: 1, seeding unit, 2, feed shaft, 3, discharging tube, 4, microwave remote sensor, 5, frequency/voltage modular converter, 6, voltage comparison module, 7, processor, 8, voice alarm module, 9, liquid crystal display, 10, motor drive module.
Embodiment
As shown in the figure: a kind of microwave broadcast leakage checkout gear for maize precise sowing machine, maize precise sowing machine comprises seeding unit 1, feed shaft 2 and discharging tube 3, this checkout gear comprises microwave remote sensor 4, frequency/voltage modular converter 5, voltage comparison module 6, processor 7 and voice alarm module 8, the quantity of microwave remote sensor 4 is identical with the quantity of the discharging tube 3 of maize precise sowing machine, microwave remote sensor 4 is arranged on the discharging tube 3 of maize precise sowing machine, the output of each microwave remote sensor 4 is connected to the input of processor 7 all successively by frequency/voltage modular converter 5 and voltage comparison module 6, the output of processor 7 also connects voice alarm module 8 and liquid crystal display 9.LM339 comparator is included in described frequency/voltage modular converter 5.Described checkout gear also includes motor drive module 10, the input connection handling device 7 of motor drive module 10, and the output of motor drive module 10 is connected to the seeding drive motors of maize precise sowing machine.Dc source provides the working power of 5V DC for whole checkout gear.Microwave remote sensor 4 is arranged on discharging tube 3, seed is by causing microwave remote sensor 4 output frequency to change, when have seed pass through install microwave remote sensor 4 local time, microwave remote sensor 4 is launched 300MHz continuous microwave signal and is reflected by seed, according to Doppler effect principle, Received signal strength frequency is higher than emission signal frequency.Computational process is as follows:
In formula, g is acceleration of gravity, and size equals 9.8 m/s
2; Fd is the difference of Received signal strength frequency and emission signal frequency, also claims Doppler frequency; ω is the angular frequency transmitted; C is velocity of electromagnetic wave; ν is seeds fall speed.
The Doppler frequency recorded incoming frequency/voltage transformation module 5 is converted to corresponding voltage, Doppler frequency voltage is connected voltage comparison module 6 "+" input, voltage comparison module 6 "-" input connecting analog ground, when sower is normally sowed time, seed is continuous and the regular flowing in discharging tube 3 of tool, and what now microwave remote sensor 4 exported is high level signal intermittently.And in time there is broadcast leakage; receiving terminal will receive basis signal always; at this moment the low level for continuing is exported; processor 7 can judge whether to occur broadcast leakage according to the monitoring time arranged; once be judged to be broadcast leakage state; voice alarm module 8 sends alarm sound immediately; and starter motor driver module 10 drives feed shaft to rotate continuation sowing; if after motor drive module 10; at the appointed time; the signal that receiving terminal exports is still unchanged, then voice alarm module 8 continues alarm operator shutdown inspection machine, fixes a breakdown.Processor 7 is determined to sow quantity by the high level pulse number calculating microwave remote sensor 4 output, seed regular by discharging tube 3 time, the microwave reflection of interval, microwave remote sensor 4 is with regard to the output high level pulse of interval, draw sowing total amount by the sum adding up pulse, liquid crystal display 9 exports sowing total amount by liquid crystal display 9.
Claims (3)
1. the microwave broadcast leakage checkout gear for maize precise sowing machine, it is characterized in that: this checkout gear comprises microwave remote sensor, frequency/voltage modular converter, voltage comparison module, processor and voice alarm module, the quantity of microwave remote sensor is identical with the quantity of the discharging tube of maize precise sowing machine, microwave remote sensor is arranged on the discharging tube of maize precise sowing machine, the output of each microwave remote sensor is connected to the input of processor all successively by frequency/voltage modular converter and voltage comparison module, the output of processor also connects voice alarm module and liquid crystal display.
2. a kind of microwave broadcast leakage checkout gear for maize precise sowing machine as claimed in claim 1, is characterized in that: include LM339 comparator in described frequency/voltage modular converter.
3. a kind of microwave broadcast leakage checkout gear for maize precise sowing machine as claimed in claim 1, it is characterized in that: described checkout gear also includes motor drive module, the input connection handling device of motor drive module, the output of motor drive module is connected to the seeding drive motors of maize precise sowing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520059139.3U CN204598638U (en) | 2015-01-28 | 2015-01-28 | A kind of microwave broadcast leakage checkout gear for maize precise sowing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520059139.3U CN204598638U (en) | 2015-01-28 | 2015-01-28 | A kind of microwave broadcast leakage checkout gear for maize precise sowing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204598638U true CN204598638U (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520059139.3U Expired - Fee Related CN204598638U (en) | 2015-01-28 | 2015-01-28 | A kind of microwave broadcast leakage checkout gear for maize precise sowing machine |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106205067A (en) * | 2016-08-03 | 2016-12-07 | 黑龙江八农垦大学 | Microwave Doppler radar seed manure flowing alarm |
| CN109490412A (en) * | 2018-10-17 | 2019-03-19 | 中国农业大学 | The soil in-situ detection method and system of seed broadcast leakage |
| CN109831979A (en) * | 2017-11-24 | 2019-06-04 | 中国农业机械化科学研究院 | Air-flow conveying-type accurate fertilizing seeder and its broadcast leakage choke detecting method and device |
| CN114258764A (en) * | 2022-01-13 | 2022-04-01 | 中国农业大学 | Seeding monitoring device |
| CN114766144A (en) * | 2022-05-10 | 2022-07-22 | 保定市鑫飞达农机装备有限公司 | Sowing missing monitoring and warning device for quinoa sowing and implementation method |
-
2015
- 2015-01-28 CN CN201520059139.3U patent/CN204598638U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106205067A (en) * | 2016-08-03 | 2016-12-07 | 黑龙江八农垦大学 | Microwave Doppler radar seed manure flowing alarm |
| CN109831979A (en) * | 2017-11-24 | 2019-06-04 | 中国农业机械化科学研究院 | Air-flow conveying-type accurate fertilizing seeder and its broadcast leakage choke detecting method and device |
| CN109831979B (en) * | 2017-11-24 | 2021-05-04 | 中国农业机械化科学研究院 | Airflow conveying type precision fertilizing and seeding machine and method and device for detecting seeding missing blockage thereof |
| CN109490412A (en) * | 2018-10-17 | 2019-03-19 | 中国农业大学 | The soil in-situ detection method and system of seed broadcast leakage |
| CN109490412B (en) * | 2018-10-17 | 2020-04-14 | 中国农业大学 | In-situ detection method and system for soil with missed seeding of seeds |
| CN114258764A (en) * | 2022-01-13 | 2022-04-01 | 中国农业大学 | Seeding monitoring device |
| CN114258764B (en) * | 2022-01-13 | 2022-12-09 | 中国农业大学 | Seeding monitoring device |
| CN114766144A (en) * | 2022-05-10 | 2022-07-22 | 保定市鑫飞达农机装备有限公司 | Sowing missing monitoring and warning device for quinoa sowing and implementation method |
| CN114766144B (en) * | 2022-05-10 | 2024-05-24 | 保定市鑫飞达农机装备有限公司 | Missing seeding monitoring and warning device for quinoa seeding and implementation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150902 Termination date: 20160128 |
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| EXPY | Termination of patent right or utility model |