CN103499370A - Electronic measurement device for boom sprayer spraying uniformity - Google Patents
Electronic measurement device for boom sprayer spraying uniformity Download PDFInfo
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- CN103499370A CN103499370A CN201310447364.XA CN201310447364A CN103499370A CN 103499370 A CN103499370 A CN 103499370A CN 201310447364 A CN201310447364 A CN 201310447364A CN 103499370 A CN103499370 A CN 103499370A
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Abstract
The invention provides an electronic measurement device for boom sprayer spraying uniformity. The electronic measurement device comprises a flow sensor module, a frequency conversion circuit, an A/D conversion circuit, a control module and a computer, wherein the flow sensor module is connected with the frequency conversion circuit, the frequency conversion circuit is connected with the A/D conversion circuit, the A/D conversion circuit is connected with the control module, and the control module is connected with the computer. The flow sensor module is used for collecting analog signals of flow of a spraying nozzle. The frequency conversion circuit is used for conducting frequency conversion on the analog signals collected by the flow sensor module. The A/D conversion circuit is used for converting analog signals obtained through conversion of the frequency conversion circuit into digital signals. The control module is used for receiving control instructions of the computer and processing the digital signals obtained through conversion of the A/D conversion circuit according to the control instructions. According to the electronic measurement device, the automation degree of boom sprayer spraying uniformity detection can be improved.
Description
Technical field
The present invention relates to the agricultural automation field, relate in particular to a kind of spray boom atomizers spray homogeneity electronic measuring device.
Background technology
In modern agricultural production, the chemical prevention diseases and pests of agronomic crop plays an important role.According to FAO's statistics, owing to using chemical pesticide, every year is retrieved 20%～25% agricultural product in the whole world, is worth more than 1,000 hundred million dollars.To drop into the recyclable agricultural product that are equivalent to 4～5 times of value of agricultural chemicals of a agricultural chemicals substantially.China accounts for 8.8% of national total output of grain because of approximately 4,000 ten thousand tons, various disease and pest loss grain every year.But due to a large amount of uses of agricultural chemicals, environment, agricultural byproducts and Crop securify had been brought to huge threat in recent years.Accuracy pesticide applying is to reduce residues of pesticides, reduce the important means that agricultural chemicals threatens environment, agricultural product and crops, by spray boom atomizers spray homogeneity is detected, can effectively control the use of agricultural chemicals, improve agricultural byproducts and Crop securify, at present, the mode of operation that the major way that China's spray boom atomizers spray homogeneity detects or artificial hand-held graduated cylinder are measured, its automaticity is also not high.
Summary of the invention
(1) technical matters that will solve
The technical problem to be solved in the present invention is: a kind of spray boom atomizers spray homogeneity electronic measuring device is provided, can improves the automaticity that spray boom atomizers spray homogeneity detects.
(2) technical scheme
For solving the problems of the technologies described above, the invention provides a kind of spray boom atomizers spray homogeneity electronic measuring device, comprise flow sensor module, freq converting circuit, A/D change-over circuit, control module and computing machine, wherein, described flow sensor module is connected with described freq converting circuit, described freq converting circuit is connected with described A/D change-over circuit, and described A/D change-over circuit is connected with described control module, and described control module is connected with described computing machine;
Described flow sensor module, for gathering the simulating signal of capacity of sprinkler;
Described freq converting circuit, carry out frequency inverted for the simulating signal to described flow sensor module collection;
Described A/D change-over circuit is digital signal for the analog signal conversion after described freq converting circuit is changed;
Described control module, for receiving the control command of described computing machine, and the digital signal after according to described control command, described A/D change-over circuit being changed is processed.
Further, described freq converting circuit is connected with described A/D change-over circuit by signal pre-processing circuit, described signal pre-processing circuit carries out the filtering processing for the signal to described freq converting circuit output, in order to remove the undesired signal in described freq converting circuit output signal.
Further, described A/D change-over circuit is connected with described control module by the DSP treatment circuit.
Further, also comprise the weather data module, be connected with described control module, for gathering current weather data.
Further, described shower nozzle is connected with described flow sensor module by the liquid collecting body, and described shower nozzle presss from both sides and is fixed on described liquid collecting body by liquid collecting.
Further, described liquid collecting folder comprises release handle, adjuster bar, crotch and liquid collecting clamping plate, described release handle is connected with described adjuster bar T shape, described adjuster bar screw thread is through described liquid collecting clamping plate, one end of described crotch is connected with described liquid collecting clamping plate, by rotation release handle and adjuster bar, compresses liquid collecting body and shower nozzle.
Further, also comprise LCDs, be connected with described control module.
Further, also comprise power module, for to spray boom atomizers spray homogeneity electronic measuring device, providing voltage.
(3) beneficial effect
The present invention gathers the flow information of shower nozzle by flow sensor module, by the flow information of control module real time monitoring, processing in real time and demonstration collection in real time, thereby improved the automaticity that spray boom atomizers spray homogeneity detects.
The accompanying drawing explanation
Fig. 1 is the structural drawing of a kind of spray boom atomizers spray homogeneity electronic measuring device of providing of embodiment of the present invention;
Fig. 2 is the structural drawing of the liquid collecting folder that provides of embodiment of the present invention;
Fig. 3 is the side view of the liquid collecting folder that provides of embodiment of the present invention;
Fig. 4 is the process flow diagram that the spray boom atomizers spray homogeneity electronic measuring device of embodiment of the present invention is measured.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used for the present invention is described, but are not used for limiting the scope of the invention.
Fig. 1 is the structural drawing of a kind of spray boom atomizers spray homogeneity electronic measuring device of providing of embodiment of the present invention, comprise flow sensor module 6, freq converting circuit 7, A/D(analog/digital, analog/digital) change-over circuit 14, control module 11 and computing machine 1, wherein, described flow sensor module 6 is connected with described freq converting circuit 7, described freq converting circuit 7 is connected with described A/D change-over circuit 14, described A/D change-over circuit 14 is connected with described control module 11, and described control module 11 is connected with described computing machine 1;
Described flow sensor module 6, for gathering the simulating signal of capacity of sprinkler;
Described freq converting circuit 7, carry out frequency inverted for the simulating signal that described flow sensor module 6 is gathered;
Described A/D change-over circuit 14 is digital signal for the analog signal conversion after described freq converting circuit 7 is changed;
Described control module 11, for receiving the control command of described computing machine 1, and the digital signal after according to described control command, described A/D change-over circuit 14 being changed is processed.
Wherein, this flow sensor module can comprise a plurality of flow sensors, so that can be to a plurality of shower nozzles while collection signals, this control module 11 can adopt the ARM9 processor.
Wherein, described freq converting circuit 7 is connected with described A/D change-over circuit 14 by signal pre-processing circuit 13, described signal pre-processing circuit 13 carries out the filtering processing for the signal to described freq converting circuit 7 outputs, in order to remove the undesired signal in described freq converting circuit 7 output signals.
Wherein, described A/D change-over circuit 14 is by DSP(digital signal processor, digital signal processor) treatment circuit 12 is connected with described control module 11, the signal that this DSP treatment circuit is exported the A/D change-over circuit is converted, filtering is processed, signal after making to process meets the requirement of control module 11 processing signals, thereby can accelerate the speed of control module processing signals.
Wherein, this spray boom atomizers spray homogeneity electronic measuring device also comprises weather data module 9, with described control module 11, is connected, and for gathering current weather data, weather data comprises temperature, humidity, wind-force, wind direction and atmospheric pressure.Weather data module 9 is to adopt ultrasonic technology measuring wind and wind direction, and precision is higher, and better reliability adopts numeral output, can be configured to RS485 output.
The spray boom atomizers spray homogeneity electronic measuring device that embodiment of the present invention provides, shower nozzle is connected with flow sensor module by the liquid collecting body, and shower nozzle presss from both sides 4 by liquid collecting and is fixed on described liquid collecting body.
The effect of liquid collecting folder is to improve the precision of measuring, and reduces the error of shower nozzle ejection water.Referring to Fig. 2 and Fig. 3, liquid collecting folder 4 comprises release handle 41, adjuster bar 42, crotch 45 and liquid collecting clamping plate 46, described release handle 41 is connected with described adjuster bar T shape, described adjuster bar screw thread is through described liquid collecting clamping plate 46, one end of described crotch 45 is connected with described liquid collecting clamping plate 46, compress liquid collecting body and shower nozzle by rotation release handle 41 and adjuster bar 42, the other end of crotch 45 is connected with liquid collecting clamping plate 46 with screw rod 43 by fixed bend dog hole 44.Particularly, shower nozzle 18 presss from both sides 4 by liquid collecting and is fixed on liquid collecting body 17, and the apopore 171 of liquid collecting body 17 is connected with flow sensor module.
Preferably, this spray boom atomizers spray homogeneity electronic measuring device also comprises LCDs 10, with described control module 11, be connected, and the information after processing for display control module.
Wherein, this spray boom atomizers spray homogeneity electronic measuring device also comprises power module 5, for to spray boom atomizers spray homogeneity electronic measuring device, providing voltage, particularly, this power module 5 is connected with control module 11, flow sensor module 6, LCDs 10, A/D change-over circuit 14, DSP treatment circuit 12, weather data module 9 and freq converting circuit 7 respectively, in order to stable operating voltage is provided.
In addition, the spray boom atomizers spray homogeneity electronic measuring device that embodiment of the present invention provides also comprises aluminum section bar frame 2, sensor control box 3, support bar 8, main control box 15 and spray boom 16, wherein, computing machine 1 is fixed on aluminum section bar frame 2, and weather data module 9 is fixed on aluminum section bar frame by support bar 8.
The spray boom atomizers spray homogeneity electronic measuring device that embodiment of the present invention provides, flow sensor module can comprise 30 flow sensors, can gather the flow information of 30 road shower nozzles, flow sensor module can adopt the 5-24VDC power supply, need connect 1-2.2K Ω pullup resistor at output terminal, the frequency signal of each flow sensor output 58-575Hz, output accuracy is ± the 3%* reading, the signal of freq converting circuit 7 flow sensor module collections carries out frequency inverted, be converted to the 4-20mA simulating signal, simulating signal after conversion enters control module 11 after signal pre-processing circuit 13 and 12 processing of DSP treatment circuit, particularly, the corresponding road acquisition channel of each flow sensor, each collection road, road has all designed independently data acquisition, the data storage, data processing function, the precedence relationship on the execution time when system call only between each passage task, priority relationship, there is no the data coupling relation, this part has comprised corresponding signal conversion, anti-interference, and preliminary signal processing etc.The signal of each road acquisition channel enters control module 11 after treatment, wherein, the sampling of signal is divided into high band according to the frequency range of flow sensor sampling, Mid Frequency and low-frequency range, each frequency range comprises 10 acquisition channels, each acquisition channel task of each frequency range all arranges two data buffer zones, dual data buffers is stored dual assurance is provided smoothly for sampling task, once make sampling work finish just to have available buffer, just can will after the data storage, gather immediately next time, wherein, the internal priority setting of acquisition channel is: low-frequency range, Mid Frequency, between the task of 3 frequency ranges of high band, priority is successively decreased successively.Wherein, control module 11 can adopt uC/OSII operating system, and uC/OSII operating system is based on the preemptive type operating system of priority, and all tasks must have independent and unique priority separately.Command scan(ning) and data demonstration are respectively highest and lowermost level priority.The command scan(ning) part is by independently host computer and slave computer have scanned the real-time monitoring to host computer monitor and slave computer LCDs, once the user command of detecting, send it to immediately command analysis and Processing tasks, by this task, user command is analyzed and processed.LCDs 10 can show data on flows and the weather data of 30 paths in real time, weather data is by temperature, humidity, wind-force, wind direction and atmospheric pressure, weather data module 9 is to adopt ultrasonic technology measuring wind and wind direction, precision is higher, better reliability, adopt numeral output, can be configured to RS485 output, control module 11 can utilize UART and RS485 change-over circuit to realize with communicating by letter of computing machine 1.
The spray boom atomizers spray homogeneity electronic measuring device that embodiment of the present invention provides, after the user lives shower nozzle by the liquid collecting clamp, adjustable spraying device pressure is to constant pressure, at this moment open the power supply of sensor control box 3, medicine enters flow sensor module 6 by shower nozzle, flow sensor module 6 is by metrical pulse number calculated flow rate, the flow analog signals of flow sensor collection enters freq converting circuit 7, be converted to the 4-20mA simulating signal through freq converting circuit 7, simulating signal after conversion is input to A/D modular converter 14 after signal pre-processing circuit 13 is processed, be input to DSP processing module 12 after being processed by A/D modular converter 14 again, thereby settling signal conversion, processing such as anti-interference grade, DSP processing module 12 is input to control module 11 after processing to the received signal, referring to Fig. 4, the user is in the computer input control command, write the channel number read and be sent to control module 11, after control module 11 receives the information of being sent by computing machine, after command functions in kernel captures user command, user command is verified, analyze, extract, whether the judgement order is correct, then will extract result and be sent to the command wait queue of each frequency range with the form of broadcast.This queue is as obtained new order, each sampling task function that sends to this queue to have under its command user command, user command will be carried out immediately, comprise the passage switching, the transformed samples cycle, change current task priority and show particular data channels etc., the order that control module 11 sends according to computing machine is returned to corresponding information to computing machine, and show on LCDs 10, LCDs 10 can be in real time with digital display interfacial, curve interface and memory curve interface display go out the data on flows of respective channel, and preserve corresponding channel data in control module.In addition, after the user writes instruction by computer interface, to want the passage numerical value read in the interface display of computing machine 1, passage numerical value also can be presented on LCDs 10 simultaneously, for each passage, alarm module can also be set, when capacity of sprinkler surpasses when the preset range of flow is set, will send the warning of reporting to the police.
The spray boom atomizers spray homogeneity electronic measuring device that embodiment of the present invention provides, gather the flow information of shower nozzle by flow sensor module, flow information by control module real time monitoring, processing in real time and demonstration collection in real time, not only improve automaticity and man-machine interaction degree that spray boom atomizers spray homogeneity detects, but also improved the spray boom spraying, sprayed the precision that homogeneity detects.
Above embodiment is only for illustrating the present invention; and be not limitation of the present invention; the those of ordinary skill in relevant technologies field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all technical schemes that are equal to also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (8)
1. a spray boom atomizers spray homogeneity electronic measuring device, it is characterized in that, comprise flow sensor module, freq converting circuit, A/D change-over circuit, control module and computing machine, wherein, described flow sensor module is connected with described freq converting circuit, described freq converting circuit is connected with described A/D change-over circuit, and described A/D change-over circuit is connected with described control module, and described control module is connected with described computing machine;
Described flow sensor module, for gathering the simulating signal of capacity of sprinkler;
Described freq converting circuit, carry out frequency inverted for the simulating signal to described flow sensor module collection;
Described A/D change-over circuit is digital signal for the analog signal conversion after described freq converting circuit is changed;
Described control module, for receiving the control command of described computing machine, and the digital signal after according to described control command, described A/D change-over circuit being changed is processed.
2. spray boom atomizers spray homogeneity electronic measuring device according to claim 1, it is characterized in that, described freq converting circuit is connected with described A/D change-over circuit by signal pre-processing circuit, described signal pre-processing circuit carries out the filtering processing for the signal to described freq converting circuit output, in order to remove the undesired signal in described freq converting circuit output signal.
3. spray boom atomizers spray homogeneity electronic measuring device according to claim 1, is characterized in that, described A/D change-over circuit is connected with described control module by the DSP treatment circuit.
4. spray boom atomizers spray homogeneity electronic measuring device according to claim 1, is characterized in that, also comprises the weather data module, with described control module, is connected, for gathering current weather data.
5. spray boom atomizers spray homogeneity electronic measuring device according to claim 1, is characterized in that, described shower nozzle is connected with described flow sensor module by the liquid collecting body, and described shower nozzle presss from both sides and is fixed on described liquid collecting body by liquid collecting.
6. spray boom atomizers spray homogeneity electronic measuring device according to claim 5, it is characterized in that, described liquid collecting folder comprises release handle, adjuster bar, crotch and liquid collecting clamping plate, described release handle is connected with described adjuster bar T shape, described adjuster bar screw thread is through described liquid collecting clamping plate, one end of described crotch is connected with described liquid collecting clamping plate, by rotation release handle and adjuster bar, compresses liquid collecting body and shower nozzle.
7. spray boom atomizers spray homogeneity electronic measuring device according to claim 1, is characterized in that, also comprises LCDs, with described control module, is connected.
8. spray boom atomizers spray homogeneity electronic measuring device according to claim 1, is characterized in that, also comprises power module, for to spray boom atomizers spray homogeneity electronic measuring device, providing voltage.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310447364.XA CN103499370A (en) | 2013-09-27 | 2013-09-27 | Electronic measurement device for boom sprayer spraying uniformity |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310447364.XA CN103499370A (en) | 2013-09-27 | 2013-09-27 | Electronic measurement device for boom sprayer spraying uniformity |
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| CN103499370A true CN103499370A (en) | 2014-01-08 |
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| CN201310447364.XA Pending CN103499370A (en) | 2013-09-27 | 2013-09-27 | Electronic measurement device for boom sprayer spraying uniformity |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104132862A (en) * | 2014-07-25 | 2014-11-05 | 西北农林科技大学 | Rapid detection system based on vertical fogdrop distribution measuring instrument |
| CN105589476A (en) * | 2016-03-14 | 2016-05-18 | 武汉九斗智能科技有限公司 | Circuit controller for variable spraying device |
| CN116907817A (en) * | 2023-07-20 | 2023-10-20 | 北京科荣达航空科技股份有限公司 | Automatic spray rod test device |
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| CN101961003A (en) * | 2010-08-10 | 2011-02-02 | 江苏大学 | Precise targeted spraying and weeding device |
| CN102997970A (en) * | 2012-11-15 | 2013-03-27 | 北京农业信息技术研究中心 | Spray deposition testing device and method |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101961003A (en) * | 2010-08-10 | 2011-02-02 | 江苏大学 | Precise targeted spraying and weeding device |
| CN102997970A (en) * | 2012-11-15 | 2013-03-27 | 北京农业信息技术研究中心 | Spray deposition testing device and method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132862A (en) * | 2014-07-25 | 2014-11-05 | 西北农林科技大学 | Rapid detection system based on vertical fogdrop distribution measuring instrument |
| CN105589476A (en) * | 2016-03-14 | 2016-05-18 | 武汉九斗智能科技有限公司 | Circuit controller for variable spraying device |
| CN105589476B (en) * | 2016-03-14 | 2018-07-27 | 武汉九斗智能科技有限公司 | A kind of circuit controller for variable sprayer apparatus |
| CN116907817A (en) * | 2023-07-20 | 2023-10-20 | 北京科荣达航空科技股份有限公司 | Automatic spray rod test device |
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Application publication date: 20140108 |