CN103004729A - Pesticide spraying barrel with full-automatic pressure balance - Google Patents
Pesticide spraying barrel with full-automatic pressure balance Download PDFInfo
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- CN103004729A CN103004729A CN2012105189063A CN201210518906A CN103004729A CN 103004729 A CN103004729 A CN 103004729A CN 2012105189063 A CN2012105189063 A CN 2012105189063A CN 201210518906 A CN201210518906 A CN 201210518906A CN 103004729 A CN103004729 A CN 103004729A
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- 239000000575 pesticide Substances 0.000 title claims abstract description 24
- 238000005507 spraying Methods 0.000 title abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 10
- 238000012545 processing Methods 0.000 claims abstract description 9
- 238000002955 isolation Methods 0.000 claims abstract description 5
- 230000004044 response Effects 0.000 claims abstract description 5
- 230000007246 mechanism Effects 0.000 claims description 5
- 238000005070 sampling Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000003044 adaptive effect Effects 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims 4
- 239000003814 drug Substances 0.000 claims 1
- 230000006698 induction Effects 0.000 description 6
- 230000000087 stabilizing effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 230000001174 ascending effect Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
The invention relates to a pesticide spraying barrel with full-automatic pressure balance, which comprises a water tank, a nozzle and an automatic control module, wherein the automatic control module comprises a CPU (Central Processing Unit) microprocessor, a liquid crystal display, an operating panel, a power supply device, a pressure sensor and an operational amplifier, a power supply isolation module is respectively and electrically connected with a signal acquisition unit and an output unit, and the signal acquisition unit is connected into an identifying unit. The pesticide spraying barrel with the full-automatic pressure balance has the advantages of automatic balance of high and low pressure, high response speed, simplicity in operation and complete functions and has great practical value.
Description
Technical Field
The invention relates to an automatic pesticide spraying barrel, in particular to a full-automatic balanced pressure pesticide spraying barrel.
Background
At present, pesticide spraying barrels are of two types, one type is manually adjusted, and the pesticide spraying barrels are inaccurate, increase labor capacity and reduce efficiency. In addition, the pesticide barrel is always automatically sprayed, when pesticides are sprayed, in order to meet the requirement of different crops on the pressure of the water pump and the change of system pressure caused by the environment at any time, an operator is required to adjust the system pressure at any time, the water cannon range is required to be adjusted timely due to the fact that the crops are far and near, the water cannon range can be influenced when the water level of the water tank is reduced, under the condition, the adjustment of the water cannon range is required to be achieved by adjusting the accelerator of the automobile, human factors are large, and deviation often occurs. This operation is very cumbersome and requires very skilled operating skills of the operator, which is time and labor intensive.
Disclosure of Invention
In order to overcome the above problems of the prior art, the patent provides a full-automatic pressure-balancing pesticide spraying barrel, which fundamentally changes the defects of manual pressure adjustment of the pesticide spraying barrel and mechanical pressure-balancing pesticide spraying barrel.
The full-automatic balanced pressure pesticide spraying barrel comprises a water tank, nozzles, a water pump, a pressure sensor and an automatic control module, wherein the nozzles are respectively provided with different models according to different conditions, and the pressure sensor is connected to the inner wall of the nozzles and used for sensing water pressure; the automatic control module comprises a CPU microprocessor, a liquid crystal display, an operation panel, a power supply device, a pressure sensor and an operational amplifier, wherein the power isolation module is electrically connected with the signal acquisition unit and the output unit respectively, and the signal acquisition unit is connected with the identification unit.
The CPU microprocessor is a singlechip, the signal sampling unit sends sampled signals of the rotating speed and the system pressure to the identification unit of the CPU microprocessor, the signals are identified and then processed by the operation unit for logic operation to form a series of data codes which can be identified by the CPU microprocessor, the signals are subjected to digital-to-analog conversion by the processing unit and amplified by the amplifying unit, and then control signals are respectively output to the liquid crystal display and each execution mechanism by the output unit.
The signal acquisition unit acquires various operation functions of the operation panel, and is characterized in that as long as a certain operation key has a high-level signal, the signal is sent to the identification unit, and is identified and confirmed to be a used function, and then is processed in the processing unit. The output unit sends the processed signals to the liquid crystal display and the corresponding actuating mechanism; in addition, after the signal acquisition unit receives the processed signals, the keys are functionally blocked, so that certain keys do not work in different operation modes.
The control system adopts fuzzy self-adaptive PID to calculate all the steam and liquid consumption of the equipment and the output quantity after regulation according to the pressure of the main pipe, then send the result to the system distribution module, distribute the result to each branch according to proper rules, convert the induction into signals and transmit the signals to the system by the induction of the parameters of the steam and liquid flow, pressure and the like, and the system sends out instructions to regulate the rotating speed or current of the mechanical equipment or redistribute the pressure according to the set parameters, so as to quickly realize the purpose of stabilizing the pressure or stabilizing the flow. The automatic pressure balancing system not only can automatically adjust field data according to set parameters, but also can modify the data at any time on the field.
The invention has the advantages that the full-automatic pressure-balancing pesticide spraying barrel is realized under the pressure set by a user, the defects of manual pressure adjustment of the pesticide spraying barrel and mechanical pressure-balancing pesticide spraying barrel are fundamentally changed, and the full-automatic pressure-balancing pesticide spraying barrel is suitable for various crops.
Drawings
The invention is further described with reference to the following figures and examples.
FIG. 1 is a structural diagram of a full-automatic balanced pressure pesticide spraying barrel
FIG. 2 is a block diagram of an automatic control module system
FIG. 3 is a diagram showing a CPU microprocessor structure
FIG. 4 is a flow chart of an automatic balancing system
FIG. 5 is a block diagram of a PID fuzzy controller system
1-digital control panel, 2-nozzle, 3-water tank and 4-connecting rod
Detailed Description
The technical scheme is that pressure at a nozzle and output quantity after PID regulation according to rated pressure of a main pipe are subjected to summary calculation, then the pressure is sent to a system distribution module and distributed to each branch according to a proper rule, induction is converted into signals to be transmitted to the system through induction of parameters such as liquid pressure, the system sends instructions according to set parameters to adjust the rotating speed or current of mechanical equipment, and the pressure is redistributed, so that the purpose of stabilizing or stabilizing the flow is rapidly achieved.
Referring to fig. 1, the full-automatic pressure-balancing pesticide spraying barrel comprises a water tank 3, nozzles 2, a water pump, a pressure sensor and an automatic control module, wherein the nozzles 2 are respectively provided with different types and are connected to the water tank through a connecting rod 4, and the pressure sensor is connected to the inner wall of the nozzles 2 and senses water pressure;
as shown in fig. 2, the automatic control module comprises a CPU microprocessor, a liquid crystal display, an operation panel, a power supply device, a pressure sensor, and an operational amplifier, the power isolation module is electrically connected to the signal acquisition unit and the output unit respectively, the signal acquisition unit is connected to the identification unit, and the liquid crystal display and the operation panel form a digital control panel 1.
Referring to fig. 3, the CPU microprocessor is a single chip microcomputer, the signal sampling unit sends sampled signals of the rotation speed and the system pressure to the identification unit of the CPU microprocessor, the signals are identified and then processed by the arithmetic unit to perform logical operation, so as to form a series of data codes that can be identified by the CPU microprocessor, the signals are subjected to digital-to-analog conversion by the processing unit, and after being amplified by the amplifying unit, the signals are respectively output to the liquid crystal display and each execution mechanism by the output unit.
Referring to fig. 4, the signal acquisition unit acquires various operation functions of the operation panel, and is characterized in that as long as a certain operation key has a high-level signal, the signal is sent to the identification unit, and is identified and confirmed as a used function, and then is processed in the processing unit. The output unit sends the processed signals to the liquid crystal display and the corresponding actuating mechanism; in addition, after the signal acquisition unit receives the signals obtained after processing, the keys are functionally blocked, so that certain keys do not work in different operation modes, and the specific setting is as follows:
1. pressure setting part
From 0.2 to 2Mpa, using a panel button; ascending/descending, and the pressure changes by 0.1MPa after one-time pressing, ascending or descending. The pressure setting range is more than or equal to 0.2Mpa and less than or equal to 2.0Mpa, and the whole system automatically works under the set pressure after setting.
2. System pressure sensor
The fully-sealed precise reed type pressure sensor is used for sampling a signal of system pressure, and has the advantages of high sampling precision, stable and reliable work, corrosion resistance, vibration resistance, standard threaded interface, and good matching between 0-20 ma standard current output and a CPU interface.
3. Manual/automatic operating state
The CPU automatically identifies the work in an automatic state and a manual state after selecting according to the panel keys.
A manual state;
CPU displays the system pressure correctly, the system does not compare the pressure, the display screen does not display the set pressure but displays the manual operation "
An automatic state;
CPU displays system pressure and rotation speed correctly, set pressure key on panel acts and displays set pressure, compares system pressure with set pressure, and outputs corresponding control signal to make the whole system work in full-automatic pressure balance mode.
4. Comparing signal output
And in the automatic working mode, the system pressure is compared with the set pressure, a continuously-changed voltage signal is output according to the comparison result to control the water pump, and the rotating speed of the water pump is adjusted to control the system pressure until the system pressure is completely balanced with the set pressure.
5. CPU plug-in display system
Displaying the system pressure; the variable water pressure control system is a variable and changes at any time according to the water pressure flow, so that the system pressure is truly reflected. Setting pressure display; once set, it is automatically latched as a constant, unless reset, and can be dynamically set during operation, and the system again operates at the newly set pressure.
6. Other external installations
The anti-interference anti-shake circuit, high performance power supply circuit, power-on reset circuit, input and output isolation circuit, AD/DA conversion, watchdog circuit, display interface expansion, data storage, gating circuit, program encryption, anti-theft writing and the like. All are taken into account during design.
The control system combines fuzzy control with other control, sums all liquid pressure and output quantity regulated according to the pressure of the main pipe, then sends the sum to the system distribution module, distributes to each branch according to proper rules, converts the induction into signals to transmit to the system by the induction of parameters such as flow and pressure of steam and liquid, and the system sends out instructions to regulate the rotating speed or current of mechanical equipment or redistributes the pressure according to the set parameters, so as to quickly realize the purpose of stabilizing or stabilizing the flow. The automatic pressure balancing system not only can automatically adjust field data according to set parameters, but also can modify the data at any time on the field. By comparing measured data with expected valuesAs a result, the response of the control system is adjusted, and a better control effect is obtained. Therefore, the key to the application of the feedback automatic control theory is as follows: how well the response of the system can be adjusted after making the correct measurements and comparisons. A PID (proportional-integral-derivative) controller is an automatic controller that uses a relationship of proportional, integral and derivative to adjust the system response. A block diagram of a system for fuzzy adaptive PID controller design adopted by a pressure auto-balancing system is shown in fig. 5. The fuzzy PID controller takes the deviation E and the deviation change rate EC of the system as input quantities, fuzzy quantities E and EC are respectively obtained after fuzzification processing, fuzzy reasoning is carried out based on the fuzzy quantities E and EC, and the obtained output quantity is a PID control parameter Kp，Ki，KdDelta Kp, delta K ofi，△KdAnd adjusting PID parameters on line. K1, K2, K3, K4 and K5 are scale factors.
The fuzzy PID controller adjusts PID parameters to calculate as follows:
wherein,
PID parameters which are initially set; Δ Kp, Δ Ki，△KdFor 3 outputs of the fuzzy controller, the values of the 3 control parameters of the PID can be automatically adjusted according to the state of the controlled object. In the online operation process, the control system completes online self-correction of PID parameters through result processing, table lookup and operation of fuzzy logic rules.
Claims (4)
1. The utility model provides a full automatic balance pressure sprays pesticide bucket, includes water tank, nozzle, water pump, pressure sensor, automatic control module, and on pressure sensor was connected to the nozzle inner wall, response water pressure, its characterized in that: the automatic control module comprises a CPU microprocessor, a liquid crystal display, an operation panel, a power supply device, a pressure sensor and an operational amplifier, wherein the power isolation module is electrically connected with the signal acquisition unit and the output unit respectively, and the signal acquisition unit is connected with the identification unit.
2. The fully automatic balanced pressure pesticide spray barrel of claim 1 wherein: the CPU microprocessor is a singlechip, the signal sampling unit sends sampled signals of the rotating speed and the system pressure to the identification unit of the CPU microprocessor, the signals are identified and then processed by the operation unit for logic operation to form a series of data codes which can be identified by the CPU microprocessor, the signals are subjected to digital-to-analog conversion by the processing unit and amplified by the amplifying unit, and then control signals are respectively output to the liquid crystal display and each execution mechanism by the output unit.
3. The fully automatic balanced pressure pesticide spray barrel of claim 1 wherein: the control system employs a fuzzy adaptive PID.
4. The fully automatic balanced pressure pesticide spray barrel of claim 1 wherein: the medicine barrel has two working states of manual operation and automatic operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105189063A CN103004729A (en) | 2012-12-06 | 2012-12-06 | Pesticide spraying barrel with full-automatic pressure balance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105189063A CN103004729A (en) | 2012-12-06 | 2012-12-06 | Pesticide spraying barrel with full-automatic pressure balance |
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| Publication Number | Publication Date |
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| CN103004729A true CN103004729A (en) | 2013-04-03 |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4392611A (en) * | 1981-05-15 | 1983-07-12 | Dickey-John Corporation | Sprayer control system |
| CN1183214A (en) * | 1997-12-15 | 1998-06-03 | 祝长宇 | Solar sprayer |
| CN2354386Y (en) * | 1998-09-11 | 1999-12-22 | 徐爱军 | Electric self-controlling pressure sprayer carried on back |
| CN2421842Y (en) * | 2000-04-06 | 2001-03-07 | 李明兵 | Improved agricultural sprayer |
| CN101608614A (en) * | 2009-07-31 | 2009-12-23 | 天长市天隆金属制品有限公司 | Fire pump discharge pressure full-automatic balancing system |
| CN101893862A (en) * | 2009-05-19 | 2010-11-24 | 无锡尚弗能源科技有限公司 | Renewable energy comprehensive generating control system based on network learning |
| CN102606801A (en) * | 2012-03-31 | 2012-07-25 | 绍兴文理学院 | Intelligent hydraulic valve |
| CN102606800A (en) * | 2012-03-31 | 2012-07-25 | 绍兴文理学院 | Detection restorative method of hydraulic valve jamming and chucking faults |
| CN202497977U (en) * | 2012-02-29 | 2012-10-24 | 河南维尼康实业有限公司 | Electric sprayer |
| CN202566080U (en) * | 2012-04-09 | 2012-12-05 | 浙江大学 | Targeting variable spray experiment machine |
| CN202958562U (en) * | 2012-12-06 | 2013-06-05 | 安徽工程大学 | Fully-automatic balanced pressure pesticide spraying barrel |
-
2012
- 2012-12-06 CN CN2012105189063A patent/CN103004729A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4392611A (en) * | 1981-05-15 | 1983-07-12 | Dickey-John Corporation | Sprayer control system |
| CN1183214A (en) * | 1997-12-15 | 1998-06-03 | 祝长宇 | Solar sprayer |
| CN2354386Y (en) * | 1998-09-11 | 1999-12-22 | 徐爱军 | Electric self-controlling pressure sprayer carried on back |
| CN2421842Y (en) * | 2000-04-06 | 2001-03-07 | 李明兵 | Improved agricultural sprayer |
| CN101893862A (en) * | 2009-05-19 | 2010-11-24 | 无锡尚弗能源科技有限公司 | Renewable energy comprehensive generating control system based on network learning |
| CN101608614A (en) * | 2009-07-31 | 2009-12-23 | 天长市天隆金属制品有限公司 | Fire pump discharge pressure full-automatic balancing system |
| CN202497977U (en) * | 2012-02-29 | 2012-10-24 | 河南维尼康实业有限公司 | Electric sprayer |
| CN102606801A (en) * | 2012-03-31 | 2012-07-25 | 绍兴文理学院 | Intelligent hydraulic valve |
| CN102606800A (en) * | 2012-03-31 | 2012-07-25 | 绍兴文理学院 | Detection restorative method of hydraulic valve jamming and chucking faults |
| CN202566080U (en) * | 2012-04-09 | 2012-12-05 | 浙江大学 | Targeting variable spray experiment machine |
| CN202958562U (en) * | 2012-12-06 | 2013-06-05 | 安徽工程大学 | Fully-automatic balanced pressure pesticide spraying barrel |
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Application publication date: 20130403 |