CN101441455A - System for monitoring seed sowing state of seed sowing device of rice direct seeding machine - Google Patents
System for monitoring seed sowing state of seed sowing device of rice direct seeding machine Download PDFInfo
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- CN101441455A CN101441455A CNA2008102201796A CN200810220179A CN101441455A CN 101441455 A CN101441455 A CN 101441455A CN A2008102201796 A CNA2008102201796 A CN A2008102201796A CN 200810220179 A CN200810220179 A CN 200810220179A CN 101441455 A CN101441455 A CN 101441455A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
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Abstract
The invention discloses a monitor system for seeding state of a seeding mechanism of a paddy planter. The system comprises an infrared transmitting tube D1 and an infrared receiving tube which are arranged separately at two opposite sides of the seeding tube, a comparator connected with the infrared receiving tube and a control system connected with the comparator. The infrared receiving tube transmits a signal result received from the infrared transmitting tube to the comparator according to the situation of seeds falling, and the comparator compares the preset reference voltage to the signal voltage and outputs a pulse signal of seed state. The control system calculates the seeding quantity and the amount of seeding holes according to the pulse signal, and determines the seeding situation of a seeding port of the paddy planter. The system has the advantage of accurate monitoring result, can monitor the seeding quantity in real time and effectively reduce missing of seeding.
Description
Technical field
The present invention relates to a kind of agricultural machinery technological field, is a kind of monitoring system of utilizing infrared emission and reception technique to detect paddy planter sowing port seeds fall state.
Background technology
Paddy planter can reduce the workload and the grain weight of rice growing, but because application rate is generally 2～6 in every cave now, as broadcast leakage occurs and will have a strong impact on emergence rate, and then influence rice yield, therefore the seeding state of sowing port is monitored and have great importance.
Summary of the invention
At the shortcoming of prior art, the purpose of this invention is to provide a kind of monitoring monitoring system of seed sowing state of seed sowing device of rice direct seeding machine accurately.
For achieving the above object, technical scheme of the present invention is: a kind of monitoring system of seed sowing state of seed sowing device of rice direct seeding machine, it comprises infrared transmitting tube and the infrared receiving tube of being located at the relative both sides of discharging tube respectively, the control system of comparer that is connected with infrared receiving tube and connection comparer, the signal results that the situation that infrared receiving tube falls according to seed will receive infrared transmitting tube is sent to comparer, comparer compares back output one seed state pulse signal according to default reference voltage and signal voltage, control system is calculated application rate and sowing cave number according to pulse signal, determines the seeding situation of paddy planter sowing port.
The pulse counter module that control system comprises that paired pulses is counted and the time interval between two pulses is calculated.
Control system also comprises the seed monitoring modular, and whether it is used to monitor comparer has pulse signal to produce in Preset Time, when pulse signal produces, judges that seed-sowing machine begins seeding operation, otherwise, judge that seed-sowing machine stops seeding operation.
Control system also comprises according to the cave whether exceeding the broadcast leakage mensuration module that preset interval time judges whether broadcast leakage apart from interpulse period.
Control system also comprises the GPS receiver of the sowing time, position coordinates and the speed of travel that are used to measure seed-sowing machine.
Infrared transmitting tube is an infrared-emitting diode, infrared receiving tube is infrared reception triode, the collector of the positive pole of infrared-emitting diode and infrared reception triode is connected to a power supply VCC, by a resistance eutral grounding, the emitter of wherein infrared reception triode also is connected to comparer to the emitter of the negative pole of infrared-emitting diode and infrared reception triode respectively.
The positive input terminal of comparer is connected to the emitter of infrared reception triode, and negative input end receives a preset reference voltage, output terminal output sub-states pulse signal.
The quantity of infrared receiving tube is a plurality of, comparer also is a plurality of, and the quantity of comparer is consistent with infrared receiving tube, the signal results that the situation that wherein a plurality of infrared receiving tubes fall according to seed will receive infrared transmitting tube is sent to a plurality of comparers, comparer according to default reference voltage with signal voltage compares and line and processing after export a seed state pulse signal.
The collector of a plurality of infrared receiving tubes all is connected to a power supply VCC, emitter is respectively by a resistance eutral grounding, wherein, a plurality of emitters also are connected to a plurality of comparers, the positive input terminal of each comparer is connected to the emitter of each infrared reception triode respectively, the negative input end of each comparer all receives a preset reference voltage, and each output terminal carries out line and back output sub-states pulse signal.
The quantity of infrared receiving tube is five, and it is divided into two rows arranges, arranges on wherein and puts three, arranges down and puts two, and the spacing between infrared receiving tube is 2mm.
The present invention compared with prior art has following advantage and beneficial effect:
The present invention monitors the seed that falls by infrared transmitting tube and infrared receiving tube, when seed falls, there are one or several infrared receiving tubes to be blocked, the infrared receiving tube duty that is blocked changes, infrared receiving tube transmits signals to comparer, comparer carries out signal and relatively waits processing back output low level, output pulse signal to comparer is analyzed, judge and the counting processing, determine the seeding situation of paddy planter sowing port, flow rate and seeding speed, the speed of travel in conjunction with paddy planter, calculate the parameters such as cave distance of seed, spatial positional information in conjunction with GPS, judge seeding fault and warning, therefore can judge the state that falls seed according to the low pulse signal of this sensor output, monitoring result is accurate, can in time monitor in real time application rate, and the situation that can effectively reduce broadcast leakage occurs.
Description of drawings
Fig. 1 is a theory diagram of the present invention;
Fig. 2 is infrared emission and infrared reception schematic diagram;
Fig. 3 is infrared transmitting tube and the spatial placement figure of infrared receiving tube on sowing port;
Fig. 4 is the input and output schematic diagram of comparer.
Fig. 5 is the control system schematic diagram.
Embodiment
Present invention is described below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of monitoring system of seed sowing state of seed sowing device of rice direct seeding machine, it comprises infrared transmitting tube D1 and the infrared receiving tube of being located at the relative both sides of discharging tube respectively, the control system of comparer that is connected with infrared receiving tube and connection comparer, the signal results that the situation that infrared receiving tube falls according to seed will receive infrared transmitting tube is sent to comparer, comparer compares back output one seed state pulse signal according to default reference voltage and signal voltage, control system is calculated application rate and sowing cave number according to pulse signal, determines the seeding situation of paddy planter sowing port.
The pulse counter module that control system comprises that paired pulses is counted and the time interval between two pulses is calculated.
Control system also comprises the seed monitoring modular, and whether it is used to monitor comparer has pulse signal to produce in Preset Time, when pulse signal produces, judges that seed-sowing machine begins seeding operation, otherwise, judge that seed-sowing machine stops seeding operation.
Control system also comprises according to the cave whether exceeding the broadcast leakage mensuration module that preset interval time judges whether broadcast leakage apart from interpulse period.
Control system also comprises the GPS receiver of the sowing time, position coordinates and the speed of travel that are used to measure seed-sowing machine.
As shown in Figure 2, infrared transmitting tube is an infrared-emitting diode, and infrared receiving tube is infrared reception triode.
The collector of the positive pole of infrared-emitting diode and infrared reception triode is connected to a power supply VCC, by a resistance eutral grounding, the emitter of wherein infrared reception triode also is connected to comparer to the emitter of the negative pole of infrared-emitting diode and infrared reception triode respectively.
The positive input terminal of comparer is connected to the emitter of infrared reception triode, and negative input end receives a preset reference voltage, output terminal output sub-states pulse signal.
As Fig. 2 and shown in Figure 4, the quantity of infrared receiving tube is a plurality of, comparer also is a plurality of, and the quantity of comparer is consistent with infrared receiving tube, the signal results that the situation that wherein a plurality of infrared receiving tubes fall according to seed will receive infrared transmitting tube is sent to a plurality of comparers, comparer according to default reference voltage with signal voltage compares and line and processing after export a seed state pulse signal.
As shown in Figure 2, the collector of a plurality of infrared receiving tubes all is connected to a power supply VCC, and by a resistance eutral grounding, wherein, a plurality of emitters also are connected to a plurality of comparers to emitter respectively.
The positive input terminal of each comparer is connected to the emitter of each infrared reception triode respectively, and the negative input end of each comparer all receives a preset reference voltage, and each output terminal carries out line and back output sub-states pulse signal.
As shown in Figure 3, the quantity of infrared receiving tube is five, and it is divided into two rows arranges, arranges on wherein and puts three, arranges down and puts two.Spacing between infrared receiving tube is 2mm.
The principle of infrared emission and infrared reception as shown in Figures 2 and 3, when not having seed to fall, do not stop between infrared transmitting tube and the infrared receiving tube, comparer is output as high level, when seed falls, have one or more infrared receiving tube to be blocked, the corresponding infrared low level that is output as is through the line and the back signal comparator output low level of comparer.Promptly when seed fell, comparer was exported a low pulse signal.
The control system part comprises pulse counter module, seed monitoring modular, broadcast leakage mensuration module, GPS receiver, man-machine interface interface and MCU and relevant circuit and forms as shown in Figure 5.Wherein,
Pulse counter module is used for count pulse and the time interval between two pulses is calculated;
Whether the seed monitoring modular is used to monitor comparer has pulse signal to produce in Preset Time, when pulse signal produces, judges that seed-sowing machine begins seeding operation, otherwise, judge that seed-sowing machine stops seeding operation;
Whether broadcast leakage mensuration module exceeds preset interval time according to the cave apart from interpulse period judges whether broadcast leakage;
The GPS receiver is used to measure sowing time, position coordinates and the speed of travel of seed-sowing machine.
In the present embodiment, paddy planter has 10 sowing ports, needs to count 10 tunnel pulses, and the time interval between two pulses is calculated, and native system adopts its function of mega128 chip microcontroller.8 the tunnel are linked on 8 external interrupt pins of single-chip microcomputer in the pulse signal that 10 road comparers send, and two-way inserts on the input capture pin of single-chip microcomputer in addition; SDcard and GPS receiver are all received on the SPI function pin of mega128, utilize PB7 port and PB6 port to hold as their sheet choosing respectively, so that different equipment is operated; The man-machine interface interface is made up of liquid crystal LCD19264, independent button and acoustic-optic alarm, and wherein liquid crystal LCD19264 takies pc port and PF port, and button takies PA0～PA5, and light is reported to the police and taken the PA6 port, and acoustic alarm takies the PA7 port.
Sowing beginning and the judgement principle that finishes: when MCU powers on, MCU monitors 10 road monitor signal plates simultaneously, when having 6 the tunnel in 2 seconds, all to have pulse signal to produce in 10 the tunnel, think that seed-sowing machine begins seeding operation, this moment, MCU began the monitoring operation, utilize interrupt mode, all 10 road signals are monitored, utilize timer to obtain the parameter such as application rate, cave number of every road sowing opening; When 10 road signals did not all have pulse signal in 2 seconds, think that sowing finishes.
Every bunch planting kind quantitative determination: according to experiment and seeding Analysis on Mechanism, when the seed wheel rotating speed between 20～40rpm, the recurrent interval that seeds fall produces is 100us～2ms, the cave apart from the recurrent interval be 10ms～30ms, therefore can utilize the time interval of cave distance to distinguish the cave distance and plant distance.If two burst length spacings, think that the seed that broadcasts previously is in the same cave less than 5ms,, think that a new cave begins to have sowed when recurrent interval during greater than 5ms.The application rate and the accumulation that utilize this method to measure every cave obtain total sowing cave number.
Broadcast leakage is measured: according to experiment and seeding Analysis on Mechanism, when the seed wheel rotating speed between 10～40rpm, the cave apart from the recurrent interval be 10ms～30ms, if during, produced a broadcast leakage certainly, owing to the reason of broadcast leakage is varied greater than recurrent interval 40ms, when producing a broadcast leakage signal, only carry out broadcast leakage counting, when the broadcast leakage counting greater than 3 the time, MCU sends the broadcast leakage alerting signal.
The sowing time of seed-sowing machine and position coordinates, the speed of travel are measured: the output signal of directly resolving the GPS receiver of seed-sowing machine can obtain current sowing time of seed-sowing machine and position coordinates, the speed of travel.
Man-machine interface: man-machine interface comprises LCD19264 liquid-crystal display section, audible alarm, light warning and keyboard portion.When seed-sowing machine began operation, the LCD19264 circulation showed the sowing state of each sowing opening, comprised application rate, cave distance, total application rate etc.; When the broadcast leakage warning took place, sound and light alarm can produce action; The effect of keyboard is to check the historical record of seed-sowing machine sowing or show the sowing state of specifying sowing opening, removes warning etc.
Data are preserved and are adopted SDcard, check for the ease of computing machine, in system, transplant the FATFS file system, when the sowing beginning, with current information of time as the newly-built file of filename, data are preserved form: be date Hour Minute Second, seed-sowing machine gps coordinate position, sowing port 1, average application rate, cave number, seeding speed, cave distance, total flow rate, broadcast leakage cave number; Sowing port 2, average application rate, cave number, seeding speed, cave distance, total flow rate, broadcast leakage cave number; Sowing port 3......, sowing port 10, average application rate, cave number, seeding speed, cave distance, total flow rate, broadcast leakage cave number.When data volume is the 4K byte, preserve once, rebulid new file afterwards, preserve successively, when sowing finishes, carry out a data analysis and result storage.
Claims (10)
1, a kind of monitoring system of seed sowing state of seed sowing device of rice direct seeding machine, it is characterized in that comprising infrared transmitting tube and the infrared receiving tube of being located at the relative both sides of discharging tube respectively, the control system of comparer that is connected with infrared receiving tube and connection comparer, the signal results that the situation that infrared receiving tube falls according to seed will receive infrared transmitting tube is sent to comparer, comparer compares back output one seed state pulse signal according to default reference voltage and signal voltage, control system is calculated application rate and sowing cave number according to pulse signal, determines the seeding situation of paddy planter sowing port.
2, monitoring system according to claim 1 is characterized in that: the pulse counter module that control system comprises that paired pulses is counted and the time interval between two pulses is calculated.
3, monitoring system according to claim 2, it is characterized in that: control system also comprises the seed monitoring modular, whether it is used to monitor comparer has pulse signal to produce in Preset Time, when pulse signal produces, judge that seed-sowing machine begins seeding operation, otherwise, judge that seed-sowing machine stops seeding operation.
4, monitoring system according to claim 3 is characterized in that: control system also comprises according to the cave whether exceeding the broadcast leakage mensuration module that preset interval time judges whether broadcast leakage apart from interpulse period.
5, monitoring system according to claim 4 is characterized in that: control system also comprises the GPS receiver of the sowing time, position coordinates and the speed of travel that are used to measure seed-sowing machine.
6, according to each described monitoring system of claim 1 to 5, it is characterized in that: infrared transmitting tube is an infrared-emitting diode, infrared receiving tube is infrared reception triode, the collector of the positive pole of infrared-emitting diode and infrared reception triode is connected to a power supply VCC, by a resistance eutral grounding, the emitter of wherein infrared reception triode also is connected to comparer to the emitter of the negative pole of infrared-emitting diode and infrared reception triode respectively.
7, monitoring system according to claim 6 is characterized in that: the positive input terminal of comparer is connected to the emitter of infrared reception triode, and negative input end receives a preset reference voltage, output terminal output sub-states pulse signal.
8, monitoring system according to claim 7, it is characterized in that: the quantity of infrared receiving tube is a plurality of, comparer also is a plurality of, and the quantity of comparer is consistent with infrared receiving tube, the signal results that the situation that wherein a plurality of infrared receiving tubes fall according to seed will receive infrared transmitting tube is sent to a plurality of comparers, comparer according to default reference voltage with signal voltage compares and line and processing after export a seed state pulse signal.
9, monitoring system according to claim 8, it is characterized in that: the collector of a plurality of infrared receiving tubes all is connected to a power supply VCC, emitter is respectively by a resistance eutral grounding, wherein, a plurality of emitters also are connected to a plurality of comparers, the positive input terminal of each comparer is connected to the emitter of each infrared reception triode respectively, and the negative input end of each comparer all receives a preset reference voltage, and each output terminal carries out line and back output sub-states pulse signal.
10, according to Claim 8 or 9 described monitoring systems, it is characterized in that: the quantity of infrared receiving tube is five, and it is divided into two rows arranges, arranges on wherein and puts three, arranges down and puts two, and the spacing between infrared receiving tube is 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNA2008102201796A CN101441455A (en) | 2008-12-19 | 2008-12-19 | System for monitoring seed sowing state of seed sowing device of rice direct seeding machine |
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| CNA2008102201796A CN101441455A (en) | 2008-12-19 | 2008-12-19 | System for monitoring seed sowing state of seed sowing device of rice direct seeding machine |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101816235A (en) * | 2010-04-21 | 2010-09-01 | 湖南农业大学 | Infrared seeding monitoring device |
| CN102172119A (en) * | 2011-03-03 | 2011-09-07 | 广西大学 | Monitoring system for precise seeding machine |
| CN102612903A (en) * | 2012-03-26 | 2012-08-01 | 华南农业大学 | System for monitoring seeding absence of sugarcane planter |
| CN102645907A (en) * | 2012-05-09 | 2012-08-22 | 安徽农业大学 | System for detecting and controlling seeding state and seed discharging fault of seeding machine |
| CN103424272A (en) * | 2012-06-10 | 2013-12-04 | 华中农业大学 | Multiple-path precision seed-metering device seed-metering performance detection system |
| CN103605307A (en) * | 2013-11-18 | 2014-02-26 | 北京农业智能装备技术研究中心 | Device and method for monitoring corn precision seeding operation |
| 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 |
| CN106569286A (en) * | 2016-10-27 | 2017-04-19 | 合肥欣奕华智能机器有限公司 | Photoelectric detection device |
| CN108370694A (en) * | 2018-03-22 | 2018-08-07 | 福建江夏学院 | A kind of sugarcane broadcast leakage kind detection device |
| CN108541428A (en) * | 2018-03-22 | 2018-09-18 | 福建江夏学院 | A kind of sugarcane broadcast leakage kind detecting system |
| CN109104949A (en) * | 2018-07-27 | 2019-01-01 | 北京农业智能装备技术研究中心 | A kind of seeding and fertilizing spray is to cave operational method |
| CN109635735A (en) * | 2018-12-12 | 2019-04-16 | 深圳市路畅科技股份有限公司 | A kind of gesture identifying device |
| CN110646019A (en) * | 2019-09-18 | 2020-01-03 | 华中农业大学 | Seed crop seed metering detection device |
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- 2008-12-19 CN CNA2008102201796A patent/CN101441455A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101816235A (en) * | 2010-04-21 | 2010-09-01 | 湖南农业大学 | Infrared seeding monitoring device |
| CN102172119A (en) * | 2011-03-03 | 2011-09-07 | 广西大学 | Monitoring system for precise seeding machine |
| CN102612903A (en) * | 2012-03-26 | 2012-08-01 | 华南农业大学 | System for monitoring seeding absence of sugarcane planter |
| CN102645907A (en) * | 2012-05-09 | 2012-08-22 | 安徽农业大学 | System for detecting and controlling seeding state and seed discharging fault of seeding machine |
| CN103424272B (en) * | 2012-06-10 | 2016-02-03 | 华中农业大学 | A kind of multichannel precise seeder seed-metering performance detection system |
| CN103424272A (en) * | 2012-06-10 | 2013-12-04 | 华中农业大学 | Multiple-path precision seed-metering device seed-metering performance detection system |
| CN103605307B (en) * | 2013-11-18 | 2017-01-04 | 北京农业智能装备技术研究中心 | A kind of apparatus and method that maize fine sowing operation is monitored |
| CN103605307A (en) * | 2013-11-18 | 2014-02-26 | 北京农业智能装备技术研究中心 | Device and method for monitoring corn precision seeding operation |
| 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 |
| CN106569286A (en) * | 2016-10-27 | 2017-04-19 | 合肥欣奕华智能机器有限公司 | Photoelectric detection device |
| CN108370694A (en) * | 2018-03-22 | 2018-08-07 | 福建江夏学院 | A kind of sugarcane broadcast leakage kind detection device |
| CN108541428A (en) * | 2018-03-22 | 2018-09-18 | 福建江夏学院 | A kind of sugarcane broadcast leakage kind detecting system |
| CN109104949A (en) * | 2018-07-27 | 2019-01-01 | 北京农业智能装备技术研究中心 | A kind of seeding and fertilizing spray is to cave operational method |
| CN109104949B (en) * | 2018-07-27 | 2020-05-19 | 北京农业智能装备技术研究中心 | Sowing, fertilizing, pesticide spraying and hole aligning operation method |
| CN109635735A (en) * | 2018-12-12 | 2019-04-16 | 深圳市路畅科技股份有限公司 | A kind of gesture identifying 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 |
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Open date: 20090527 |