CN202340435U - Real-time measuring system for maize yields based on working paths - Google Patents
Real-time measuring system for maize yields based on working paths Download PDFInfo
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- CN202340435U CN202340435U CN2011204813671U CN201120481367U CN202340435U CN 202340435 U CN202340435 U CN 202340435U CN 2011204813671 U CN2011204813671 U CN 2011204813671U CN 201120481367 U CN201120481367 U CN 201120481367U CN 202340435 U CN202340435 U CN 202340435U
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Abstract
The utility model discloses a real-time measuring system for maize yields based on working paths. The system is installed on a maize harvesting machine and comprises a field computer, a speed sensor, a yield monitoring sensor, a position switch sensor and a yield monitoring information database, wherein the field computer is installed in a cab of the maize harvesting machine; the speed sensor is installed on a wheel of the maize harvesting machine; the yield monitoring sensor is installed at the bottom of a grain collection bin of the maize harvesting machine; the position switch sensor is installed on a header of the maize harvesting machine; the speed sensor, the yield monitoring sensor and the position switch sensor are connected with the field computer through shielded conductors; the field computer comprises a path computation module and a yield mapping module; harvesting machine operating speeds, maize yield information, real-time position information and a maize yield distribution map acquired by the speed sensor, the yield monitoring sensor, the path computation module and the yield mapping module respectively are stored in the yield monitoring information database. The real-time measuring system for maize yields based on working paths reduces the yield monitoring cost and improves the system stability.
Description
Technical field
The utility model relates to a kind of corn yield real-time measurement system based on the operation path.Be specifically related to a kind ofly comprise velocity sensor, LOAD CELLS and be that the maize harvesting machine that the field calculator of core exploitation is formed is used the output real-time measurement apparatus with the ARM920T-S3C2410 microprocessor.
Background technology
In the accurate agricultural technical system, obtaining yield data in real time is one of key technology of implementing the accurate agricultural operation.Exactly results with analyze corn yield and be the terminal point of operation then in the accurate agricultural system, be the starting point of next year operation again.Obtain yield data and distribution map thereof accurately, through corn yield difference is analyzed, retrospective analysis produces the reason of difference, and the management such as sowing, irrigation, fertilising and the decision-making work that can be the coming year (or next season) provide valuable reference frame.We can say that obtaining yield data (survey and produce) is the basis of accurate agricultural operation, also is an important step implementing the accurate agricultural operation.
In recent years, system for measuring yield has formed multiple commercial achievement abroad, and these system for measuring yield are mainly used in the granola cereal harvest machinery.For example: " advanced agricultural " system of U.S. Kase Corp., " star of green " system of U.S. John Deere & Co. etc.But these products are primarily aimed at results graininess crops, as: granule cereal, granular corn, soybean, paddy rice and grass-seed etc.Above-mentioned system for measuring yield is applied to harvest corn and surveys when producing operation, is fit to corn kernel and under the condition of water content≤20%, carries out.And China rural area is because the restriction of agronomy and weather conditions then begins results in corn kernel water content >=30%, and corn content is too high at this moment carries out corn threshing when being not suitable for gathering in operation.Therefore to obtain corn yield in real time, can only implement real-time output to the corn ear of results in the field and measure.Simultaneously; Existing accurate agricultural Work machine all be by equipment GPS (or DGPS) above that for field machinery provides positional information, the mode of obtaining output figure is that production information is combined generation output distribution map with the positional information of using GPS (or DGPS) to obtain.Owing on every corn picker, assemble GPD (or DGPS), the cost height of yield data is obtained in having high input in advance of therefore existing harvest corn machine operation system for measuring yield.
In addition, the first step that the accurate agricultural operation is implemented is that the land for growing field crops piece is divided into little field piece, promptly carry out grid and divide, and be that unit carries out data acquisition, analysis, management with an operation grid (or operating unit).In states such as America and Europes, because scale management, promptly the farmland is larger, and it generally is consistent with the earth longitude and latitude direction that grid is divided, and is square or rectangular shape, is then ignored in the fragmentary plot that block edge place in field forms.And in China, the rural area coproduction land contract accountability that China is existing, the soil that rural area peasant household contracts is to divide by ridge (work), simultaneously sowing, the variable fertilization in the agronomy operation, topdress and gather in the crops also and all implement operation by the ridge.Therefore; Be that unit obtains production information and not only can produce fragmentary border fragment with the operating unit; And the formed output distribution map and the sowing in spring, variable fertilization, variable spray medicine operating type are inconsistent, are not easy to carry out the assessment of farmland operation management, analysis and benefit.
Summary of the invention
The purpose of the utility model is to overcome deficiency of the prior art, provides the low maize harvesting machine of a kind of cost to use the output real-time measurement system.
In order to achieve the above object, the utility model provides a kind of corn yield real-time measurement system based on the operation path, and this system is installed on the maize harvesting machine; This system comprises field calculator, velocity sensor, survey product sensor, travel switch sensor and surveys and produce information database; The velocity sensor that is used for obtaining the reaping machine operating speed is installed on the harvest corn locomotive wheel; Is produced from the collection tanker bottom that sensor is installed in maize harvesting machine in the survey that is used for obtaining corn yield information; Said travel switch sensor is installed in the ceding of Taiwan of said maize harvesting machine; Said velocity sensor, survey are produced sensor and are linked to each other with the field calculator through shielded conductor with the travel switch sensor; Comprise in the calculator of said field that path calculation module becomes module with output; Path calculation module carries out real-time positioning and obtains real-time position information said maize harvesting machine present position, and output becomes module to draw the corn yield distribution map; Reaping machine operating speed, corn yield information, real-time position information and the corn yield distribution map that obtains is stored in to survey and produces in the information database.
Further improvement to the utility model is: velocity sensor comprises near inductance approach switch sensor and code-disc, through measurement unit in the time wheel revolutions calculate reaping machine speed.
It is core that above-mentioned field calculator adopts the ARM920T-S3C2410 microprocessor.The field calculator also comprises the field information database, and storage plot information, train number information, corn moisture content h and fringe grain compare k in the information database of field.
Above-mentioned survey is produced sensor and is adopted Weighing type output sensor, records corn ear weight in the collection tanker.
Real-time measurement system is through travel switch sensor monitoring ceding of Taiwan state, and when the ceding of Taiwan was risen, the ceding of Taiwan highly was higher than the critical value of travel switch sensor, did not then start path calculation module; When the ceding of Taiwan is put down, the ceding of Taiwan highly is lower than the critical value of travel switch sensor, and the travel switch sensor sends logical order to the field calculator, starts path calculation module.
Velocity sensor is gathered maize harvesting machine wheel pulse signal in real time, and through shielded conductor pulse signal is passed to the field calculator; The pulse signal that said path calculation module receives according to the field calculator, and through path computing and the real-time positioning of location reckoning realization harvest corn facility in the field.
Output becomes module to pass through corn moisture content, fringe grain ratio in the information database of field, and surveys and produce the corn ear weight that sensor records, and calculates corn yield, and the operation path real-time rendering corn yield distribution map that obtains according to path calculation module.
Real-time measurement system also comprises power supply, and power supply is the DC voltage that field calculator, velocity sensor, survey product sensor and travel switch sensor provide 12V.
Surveying and producing information database is USB flash disk, and said USB flash disk links to each other through USB interface with the field calculator.
The utility model is compared prior art and is had the following advantages: the yield data that the utility model is obtained based on the corn yield real-time measurement system in operation path and output distribution map not only with sowing when cultivating spring, fertilizer distributor operator to consistent; Make autumn harvest also consistent season simultaneously with the operating type of reaping machine; Be convenient to survey the enforcement of product operation and the analysis of yield data, be convenient to carry out the assessment of agricultural operation management and benefit.Use path calculation module and calculate that through path computing and location algorithm is that system for measuring yield provides operation path and positional information, save cover GPS (or DGPS) equipment during harvest operation, can significantly reduce the input in advance of reaping machine system; Owing to reduced hardware equipped, not only lower the cost of system for measuring yield equipment, also reduced the power load of system for measuring yield simultaneously, lower and obtain the cost of yield data, and improved the stability of system works.The utility model survey to produce the agronomy demand that operating type is fit to China's actual conditions, not only can obtain the corn yield data in real time, generates the output distribution map, and the management and the decision-making that drop into operation for the variable in the coming year (or next season) provide reference; And the related data that produces in the operation process carried out real-time storage, and accurately real-time work data recording process can be provided, improving for China's corn harvesting machine design provides full and accurate reference data.The system for measuring yield that is designed is simple in structure, and equipment is less investment in advance, and operational method reduces the survey product error that reaping machine operation vibrations are brought effectively, improves to survey and produces precision; Carrying out output based on the operation path, to measure formed output distribution map not only consistent with the sowing in spring, variable fertilization, variable spray medicine operating type, and consistent with the reaping machine operating type.Therefore be convenient to analyze, manage, assess and prediction.Fill up domestic corn yield and monitored the blank in field in real time.
The utility model has been realized the real-time online measuring of corn yield, and implementing the accurate agricultural operation for corn crop provides a kind of effective and feasible results to survey product operational method and measuring system.System for measuring yield that is designed in the invention and measuring method reduce the cost that obtains yield data greatly and effectively lower reaping machine operation vibrations to surveying the influence of producing precision, improve harvest corn and survey the precision and the reliability of producing.
Description of drawings
Fig. 1 is the scheme of installation of the utility model output real-time measurement system on maize harvesting machine.
Fig. 2 is the operation principle sketch map of the utility model.
Fig. 3 surveys for the utility model harvesting and produces operation process chart.
Among the figure, 1-field calculator, the 2-velocity sensor, 3-inductance approach switch sensor, 4-code-disc, 6-are surveyed and are produced sensor, and 7-travel switch sensor, 8-are surveyed and are produced information database, the 9-power supply, 10-shields connecting line.
Embodiment
Below in conjunction with accompanying drawing the utility model maize harvesting machine is elaborated with the output real-time measurement system.
Like Fig. 1, shown in Figure 2, the utility model output real-time measurement system comprises: be the field calculator 1 of core exploitation, the velocity sensor 2 is made up of inductance approach switch sensor 3 and code-disc 4, survey and produce sensor 6, travel switch sensor 7, survey and produce information database 8, power supply 9, shield connecting line 10 with the ARM920T-S3C2410 microprocessor.Wherein, surveying and producing information database 8 is USB flash disk, and connecting field calculator 1 through USB interface is an integral body, is installed in the maize harvesting machine driver's cabin.Field calculator 1 comprises that field information database, path calculation module and output become module.Field calculator 1 carries out man-machine interactive operation, and input ground block message, reaping machine train number information, corn content h and fringe grain compare k in the information database of field.Inductance approach switch sensor 3 is installed on the reaping machine wheel with code-disc 4, through analytical unit in the time wheel revolutions calculate reaping machine speed, calculate travel distance and reaping machine job position by path calculation module accumulative total wheel revolutions.Surveying and producing sensor 6 is Weighing type output sensor, is installed in the collection tanker bottom of reaping machine, records the corn ear weight of results.Travel switch sensor 7 is installed in the ceding of Taiwan of maize harvesting machine, is used for monitoring taiwan cut off and landing and whether judges the reaping machine operation, for system provides the logic switch signal.Power supply 9 is taken from the 12V DC voltage on the reaping machine.Inductance approach switch sensor 3, survey are produced sensor 6 and are linked to each other with field calculator 1 through shielded conductor 10 with travel switch sensor 7.The signal enabling path calculation module that the field calculator receives travel switch sensor 7, velocity sensor 2, survey product sensor 6 calculates current output and has gathered in the crops the cell production data, and data are produced in the information database 8 in surveying with suffix .vld document form real-time storage.
As shown in Figure 3, when the utility model uses, at first gather in the crops plot corn to be sampled, the grain fringe that draws corn ear is than k and corn content h (different plot, kind grain fringe are more different than k, corn content h difference, the acquisition of palpus spot sampling).When reaping machine gets into the operation plot, start this output measuring system, carry out man-machine interactive operation through field calculator 1 screen, the fringe grain of input ground block number, reaping machine train number information, corn moisture content h and this kind corn compares k.Field calculator 1 simultaneously the display system duty, comprise the information such as output of current operating speed, position and accumulative total.Corn ear divests bract after the ceding of Taiwan is collected, collects in the tanker through elevator 5, and after the collection tanker is full, the lifting unloading.Put down when the ceding of Taiwan and to trigger travel switch sensor 7 when carrying out the reaping corn operation; Produce a logic enabling signal and reach field calculator 1 through shielding connecting line 10; System then picks up counting; Velocity sensor 2 is gathered the wheel pulse signal in real time, and through shielding connecting line 10 pulse signal is passed to field calculator 1.According to gained pulse and given wheel diameter, calculate the distance of reaping machine walking in the unit interval by the path calculation module that is embedded in field calculator 1, obtain reaping machine operating speed V; Path distance L and the ceding of Taiwan width D of being walked in the time by reaping machine results one collection tanker then calculate interior harvest area S=LD during long-pending full one case corn; Extrapolate the current job position of reaping machine simultaneously through location reckoning algorithm.Before the startup lifting collection tanker that stops was toppled over corn, field calculator 1 reads surveyed the weight data M that produces sensor 6, calculates simultaneously the working area S=LD in the weight M that should collect the tanker corn ear.Area S and this zone corn ear weight M are merged, obtain the yield data of this operation sub-district.When harvester row entered the edge of a field or harvest operation time-out, the ceding of Taiwan was risen, and travel switch 7 sends logic and stops signal, and system stops data acquisition, gets into holding state.In the output and area of field calculator 1 in getting access to the operation path, with corresponding position information, velocity information, production information, operation path, working area, block message and information real-time such as train number and time be stored in the USB flash disk.
Power supply 9 is responsible for field calculator 1, velocity sensor 2, LOAD CELLS 6, travel switch 7 12V is provided DC voltage.
The utility model goes for the maize harvesting machine of Catherine wheel collection tanker, only needs to be installed in collection tanker bottom to LOAD CELLS, is installed in velocity sensor on the wheel to get final product.This invention is applicable to the maize harvesting machine of multiple model.The utility model has been filled up the blank of surveying product both at home and abroad for harvest corn in real time, and surveying in real time to produce for enforcement accurate agricultural harvest corn provides technical support.
Claims (10)
1. based on the corn yield real-time measurement system in operation path, this system is installed on the maize harvesting machine; It is characterized in that: this system comprises field calculator (1), velocity sensor (2), surveys and produce sensor (6), travel switch sensor (7) and survey product information database (8); The velocity sensor (2) that is used for obtaining the reaping machine operating speed is installed on the harvest corn locomotive wheel; Is produced from the collection tanker bottom that sensor (6) is installed in maize harvesting machine in the survey that is used for obtaining corn yield information; Said travel switch sensor (7) is installed in the ceding of Taiwan of said maize harvesting machine; Said velocity sensor (2), survey are produced sensor (6) and are linked to each other with field calculator (1) through shielded conductor with travel switch sensor (7); Said field calculator (1) comprises that path calculation module becomes module with output; Path calculation module carries out real-time positioning and obtains real-time position information said maize harvesting machine present position, and output becomes module to draw the corn yield distribution map; Reaping machine operating speed, corn yield information, real-time position information and the corn yield distribution map that obtains is stored in to survey and produces in the information database (8).
2. according to the said corn yield real-time measurement system of claim 1 based on the operation path; It is characterized in that: said velocity sensor (2) comprises near inductance approach switch sensor (3) and code-disc (4), through measurement unit in the time wheel revolutions calculate reaping machine speed.
3. according to the said corn yield real-time measurement system based on the operation path of claim 1, it is characterized in that: it is core that said field calculator (1) adopts the ARM920T-S3C2410 microprocessor.
4. according to the said corn yield real-time measurement system of claim 1 based on the operation path; It is characterized in that: said field calculator (1) also comprises the field information database, and information data library storage plot, said field information, train number information, corn moisture content h and fringe grain compare k.
5. according to the said corn yield real-time measurement system of claim 4 based on the operation path; It is characterized in that: said output becomes module to pass through corn moisture content and fringe grain ratio in the information database of field; And survey and produce the corn ear weight that sensor (6) records; Calculate corn yield, and the operation path real-time rendering corn yield distribution map that obtains according to path calculation module.
6. according to the said corn yield real-time measurement system based on the operation path of claim 1, it is characterized in that: said survey is produced sensor (6) and is adopted Weighing type output sensor, records corn ear weight in the collection tanker.
7. according to the said corn yield real-time measurement system of claim 1 based on the operation path; It is characterized in that: said real-time measurement system is through travel switch sensor (7) monitoring ceding of Taiwan state; When the ceding of Taiwan is risen; The ceding of Taiwan highly is higher than the critical value of travel switch sensor (7), does not then start path calculation module; When the ceding of Taiwan is put down, the ceding of Taiwan highly is lower than the critical value of travel switch sensor (7), and travel switch sensor (7) sends logical order to field calculator (1), starts path calculation module.
8. according to the said corn yield real-time measurement system of claim 1 based on the operation path; It is characterized in that: said velocity sensor (2) is gathered maize harvesting machine wheel pulse signal in real time, and through shielded conductor pulse signal is passed to field calculator (1); The pulse signal that said path calculation module receives according to field calculator (1), and through path computing and the real-time positioning of location reckoning realization harvest corn facility in the field.
9. according to the said corn yield real-time measurement system of claim 1 based on the operation path; It is characterized in that: said real-time measurement system also comprises power supply (9), and said power supply (9) is the DC voltage that field calculator (1), velocity sensor (2), survey product sensor (6) and travel switch sensor (7) provide 12V.
10. according to the said corn yield real-time measurement system based on the operation path of claim 1, it is characterized in that: said survey is produced information database (8) and is USB flash disk, and said USB flash disk links to each other through USB interface with field calculator (1).
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| CN2011204813671U CN202340435U (en) | 2011-11-28 | 2011-11-28 | Real-time measuring system for maize yields based on working paths |
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