CN103283545A - Automatic control combined simulated rainfall device based on Stm 32 microcontroller - Google Patents
Automatic control combined simulated rainfall device based on Stm 32 microcontroller Download PDFInfo
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- CN103283545A CN103283545A CN2013101210318A CN201310121031A CN103283545A CN 103283545 A CN103283545 A CN 103283545A CN 2013101210318 A CN2013101210318 A CN 2013101210318A CN 201310121031 A CN201310121031 A CN 201310121031A CN 103283545 A CN103283545 A CN 103283545A
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Abstract
The invention discloses an automatic control combined simulated rainfall device based on an Stm 32 microcontroller, which changes the current situation in China that a rainer applicable to performing rain loading simulation on the lodging-resistant research of rice and similar crops is unavailable. The device adopts two power supply modes, namely DC and AC and comprises a raindrop generating device, a water supply device and an Stm 32 micro-control system, wherein the raindrop generating device combines a sprayer and a pinhead, and drives an electromagnetic valve to select different raindrop generating devices so as to change the raindrop generating manner and the raindrop size through the micro-controller drive signal; the water supply device comprises a water pump, a flowmeter and a water storage box and adopts the proportion integration differentiation (PID) closed-loop control algorithm to control the operation of the water pump so as to provide raininess for the raindrop generating device; and the Stm 32 micro-control system serves as the core and integrates multiple operating modes comprising a touch screen and a PC upper computer. The automatic control combined simulated rainfall device has high automaticity and is suitable for different fields including lodging-resistant rain loading tests of rice.
Description
Technical field
This patent relates to agricultural research and automation field, is specifically related to the automatic control combination formula rainfall simulator based on the Stm32 microcontroller, be used for simulation under natural environment rainfall to the influence of paddy rice or the distortion of similar crops stem stalk.
Background technology
China south is in the subtropics, closes on the Pacific Ocean, belongs to the subtropics monsoon climate, is the tropical storm prone areas.Paddy rice is China south staple food crop, and its mature period is many typhoons heavy rain season just, goes to toward meeting with powerful storm in the paddy rice maturation, causes rice lodging.The serious underproduction of paddy rice that lodging causes is the outstanding problem of present Rice Production.Therefore, the performance resistant to lodging of research paddy rice is significant.
The performance resistant to lodging of research paddy rice must have can the simulating nature state under the Prosthesis of rainfall, break away from natural conditions to the interference of experiment, and can artificially control various parameters, can within a short period of time the paddy rice sample in each vegetative period be carried out research resistant to lodging under the different condition of raining, obtain mass data, and can adapt to the different experiments environment of laboratory and paddy field.
Artificially-simulated rainfall device generally comprises parts such as raindrop generating means, water supply installation.The raindrop generating means can be summed up as three classes, uses shower nozzle, orifice plate and syringe needle as the raindrop generator respectively.Spray nozzle type raindrop generating means is divided into multiple shower nozzle and single first two form of spray of planting.The combination rainer of existing multiple shower nozzle takes up an area of bigger, and device is divided into multilayer, installs very inconvenient, raininess regulate need the different apertures of change shower nozzle, bring inconvenience to measurement.And single shower nozzle change raininess rainer of planting utilizes different pressure of supply waters, forms the overflow of different-thickness, and the overflow directive is subjected to the raindrop that air drag forms different sizes when aerial.In the demanding occasion of certainty of measurement, this device is difficult to satisfy.Orifice-plate type and needle-based raindrop generating means all are fixing bores, when needing conversion raindrop size, need to change whole raindrop generating means, operate very loaded down with trivial details.Water supply installation can be divided into not to be needed power set water supply and needs power set water supply two big classes.For the rainer that non-power set supply water, volume is less, removable usually, but must directly be connected with running water pipe, and by the pressure water supply of running water, the working region requires contiguous water supply pipe, and moving area limits to some extent.It is strong that such device is generally just controlled rainfall by manual control valve aperture or water-storing device water level, and controllability is low.Rainer for power set supply water generally supplied water by the bigger water lift water pump of volume, but device volume is bigger, is difficult for mobile.Such device generally needs the 220V ac power supply, and relatively poor to open-air rugged environment adaptability, operability is not strong.Present domestic artificially-simulated rainfall device is primarily aimed at water and soil loss, agriculture and forestry are irrigated and nuclein migration field and developing, and still are not specifically designed to research paddy rice and type crops human simulation rainer resistant to lodging.At agriculture and forestry irrigation and water and soil loss and the rainfall simulator of developing, the simulated rainfall rank is the bigger heavy rain of intensity or heavy rain substantially, volume is general huger, rain area is wide, parts are more, carrying has big difficulty between laboratory and paddy field, and must damage paddy rice under the large tracts of land when testing at every turn, and is also unrealistic economically.The general simulated rainfall intensity of rainfall simulator at the nuclein migration exploitation is less.Yet, simulate natural rainfall now and not only require the rainfall intensity scope big to rainer, the precision height, good uniformity also will satisfy strong operability, applied range, good, the high requirement of reliability of monitoring performance.
Summary of the invention
At above-mentioned technical problem, the present invention is intended to solve the problems of the technologies described above at least to a certain extent.
At the disappearance that is at present the rainfall simulator of paddy rice and similar crops deformation experiment exploitation resistant to lodging, this patent provides a kind of automatic control combination formula rainfall simulator based on the Stm32 microcontroller, this installs, and not only volume is little, be easy to change the raindrop occurring mode, and the rainfall intensity scope is wide, can overall process control automatically, intelligent degree height is strong to environmental suitability.This patent is achieved through the following technical solutions, automatic control combination formula rainfall simulator based on the Stm32 microcontroller comprises raindrop generating means, water supply installation and Stm32 micro control system, described water supply installation comprises by water storage box, described water storage box and connects 12V direct current miniature diaphragm water pump 8 and flowmeter 14 successively by water pipe 16 that described flowmeter 14 is connected with 3 magnetic valves 7 respectively by pipeline;
Described raindrop generating means comprises the Conic nozzle 12 that is connected and connects by a water supply line 13 and one of them magnetic valve 7, and the 2 cover precipitation conduits 11 that are connected respectively by other 2 water supply lines 13 and other 2 magnetic valves 7, cover precipitation conduit 11 syringe needle that to be furnished with 20 internal diameters be 0.84mm wherein, the syringe needle that it is 0.62mm that another set of precipitation conduit 11 is furnished with 20 internal diameters, the 11 mutual adjacent settings of two cover precipitation conduits; Other is provided with the device support stand of aluminium alloy structure, and described precipitation conduit 11 and water supply water pipe 13 are connected as a single entity by bandage and device support stand 15, detachable movement during carrying;
Described Stm32 micro control system comprises stm32 microcontroller module 5 and the keyset 6 that is connected, described keyset 6 is connected with 12V direct current miniature diaphragm water pump 8, flowmeter 14,3 magnetic valves 7 respectively by holding wire 17, and described stm32 microcontroller module 5 and 12V direct current miniature diaphragm water pump 8 are by power supply 4 power supplies.
Further, described Conic nozzle 12 is arranged on the centre at device support stand 15 tops.
Further, described water storage box is divided into inhalant region 1 by screen pack 3 and the district 2 of drawing water, and the described district 2 of drawing water connects 12V direct current miniature diaphragm water pump 8 and flowmeter 14 successively by water pipe 16.
Further, also be provided with minifilters 9 on the described water pipe 16 that draws water between district 2 and the 12V direct current miniature diaphragm water pump 8.
Further, described 12V direct current miniature diaphragm water pump 8 and stm32 microcontroller module 5 are passed through the DC voltage-stabilizing module for power supply by the 220V AC power, or are directly powered by the DC12V direct-flow storage battery.
Further, described stm32 microcontroller module 5 is operated and is controlled by the mode of touch-screen button, raininess adjusting knob, IR remote controller and PC host computer.
Further, described stm32 microcontroller module 5 adopts the N-channel MOS pipe to drive, and comprises DC-DC copped wave buck chip, N-channel MOS management and control circuit processed and H bridge circuit;
Further, described Stm32 microcontroller module 5 system use traffic meters constitute closed-loop control system as sensor with in conjunction with amount of calculation small incremental formula pid control algorithm, accelerate control response, and this algorithm formula in computer programming is as follows:
This device adopts shower nozzle 12 and syringe needle combined type raindrop generating means.Arrange a removable Conic nozzle 12 and two cover precipitation conduits 11 in the centre at device support stand 15 tops.The cover precipitation conduit 11 bottom surface horizontal planes syringe needle that to be furnished with 20 internal diameters be 0.84mm wherein, the syringe needle that it is 0.62mm that another set of precipitation conduit 11 bottom surface horizontal planes are furnished with 20 internal diameters.Control precipitation conduit or the shower nozzle that the magnetic valve selection will be used by the Stm32 control system.
Carry water storage box, can be away from water source work, moving area is wide.
Detachably carrying between device support stand 15, water storage box, precipitation conduit 11 and the shower nozzle 12.
Water storage box is divided into inhalant region and two zones, district of drawing water, and the centre is separated by screen pack, and the water source of inhalant region is extracted out by lift pump from the district of drawing water behind the net filtration after filtration again.
This device adopts 12V direct current miniature diaphragm water pump, the motor drive module of water pump and Stm32 micro controller module are powered through DC voltage-stabilizing module transformation by the 220V AC power, or directly by the power supply of 12V direct-flow storage battery, by micro control system such as STM32 such as multiple mode of operation control such as touch-screen button, raininess adjusting knob, IR remote controller and PC host computer etc. on the device.
Whole rainer mainly be divided into Stm32 microcontroller nucleus module, motor drive module, power module, display module, flowmeter survey module, Executive Module, infrared receiving module and bluetooth receiver module.Wherein Executive Module is integrated solenoid valve interface, flowmeter interface and water pump interface uses netting twine that Executive Module is connected realization than far distance controlled with other control modules.Other control modules are integrated on the circuit board, and two integration modules are packaged into two equipment respectively.
Driver module uses the N-channel MOS pipe to drive, and acp chip wherein is DC-DC copped wave buck chip, N-channel MOS management and control circuit processed and H bridge circuit.Conducting resistance between the half-bridge is too big up and down in order to avoid, cause half-bridge to gather most of heat and burn out the generation of this situation, we have added by the capacitance-resistance attenuator circuit at the PWM input, and when pwm signal maintained high level, HIN and LIN held the low level that can decay back gradually.Before bootstrap capacitor voltage was obviously decayed, HIN and LIN end had just been decayed back low level.
System regulates dutycycle by PWM and realizes the operation of motor speed full scale, thereby realizes the full range regulation of rainfall intensity, and when dutycycle reached maximum, raininess reached maximum.So just realized the full scale regulation and control, have the rainfall scope wide outstanding advantage.
Native system has used closed-loop control system, and the flow that flows out by the flowmeter survey water pump, and relatively obtain deviation with setting value uses increment type PID control mode control dutycycle to realize that pressure regulation reaches and regulates the water pump output flow.
The present invention compared with prior art has following advantage:
(1) select different raindrop generating means by Stm32 control system control magnetic valve, with change raindrop occurring mode, thus the inconvenience of having avoided manual replacing raindrop generating means to bring.Adopt shower nozzle and syringe needle combined type raindrop generating means simultaneously, can select different raindrop occurring modes as required for use, avoided the single kind of limitation that the raindrop occurring mode brings.
(2) carry water storage box, can be away from water source work, moving area is wide.Water storage box is divided into inhalant region and draws water the district, and the centre is separated by screen pack, and the water source of inhalant region is extracted out by lift pump from the district of drawing water behind the net filtration after filtration again.Impurity in the water outlet can be effectively filtered in this setting, prevents that impurity from stopping up syringe needle.
(3) detachably carrying between bracing frame, water storage box, precipitation conduit and the shower nozzle, conveniently moving.
(4) this device adopts 12V direct current miniature diaphragm Pulan enlightening water pump, and water pump appearance and size is 185 * 100 * 70mm, and volume is little, and maximum pressure reaches 1MPa, satisfies the rainfall requirement.The motor drive module of water pump and Stm32 micro controller module can be powered through DC voltage-stabilizing module transformation by the 220V AC power, or are directly powered by the 12V direct-flow storage battery.Because adopt 12V direct current miniature diaphragm water pump, the power maximum is 50W, energy consumption is low.When this device is powered by the 12V direct-flow storage battery, but continuous operation is strong to open-air bad working environment adaptability more than 3 hours.
(5) stm32 microcontroller module can adapt to laboratory and open-air environment for use by multiple mode of operation control such as touch-screen button, raininess adjusting knob, IR remote controller and PC host computer etc. on the device.
(6) Executive Module of whole rainer is integrated solenoid valve interface, flowmeter interface and water pump interface uses netting twine that Executive Module is connected realization than far distance controlled with other control modules, avoids wiring error to reduce backguy, comparatively hommization simultaneously.Other control modules are integrated on the circuit board, and the area that takes up space is little.Two integration modules are packaged into two equipment respectively, and volume is about 5cm * 5cm * 1cm and 10cm * 10cm * 5cm respectively, satisfies the device miniaturization requirement, and is portable.
(7) the most of element of circuit uses the less paster of encapsulation, and control section uses the 3.3V low voltage control.Whole module has little, the safe and reliable advantage of volume.
(8) native system has used closed-loop control system, has automatic deviation correction ability and high control precision, and FEEDBACK CONTROL is reliable.
(9) this system is sent to control signal on the Executive Module by netting twine, can realize the collection to the raininess data, control and the pump motor speed regulating control output flow that magnetic valve opens and closes, and collects data acquisition and is controlled in the whole body.Simultaneously integrated multiple mode of operation satisfies the different operation requirement of user.Characteristics with automaticity height, flexible operation.
(10) system regulates dutycycle by PWM and realizes the operation of motor speed full scale, and adjustable range is big, and the rainfall raininess scope that can realize is wide.
The present invention uses step as follows:
(1) starts the rainer power switch, by selected mode of operation (the touch-screen button on the device, raininess adjusting knob, IR remote controller and PC host computer) control control module, raindrop occurring mode (small pinhead, big syringe needle or shower nozzle) is set, and rainfall intensity is adjusted to maximum, precipitation conduit syringe needle or shower nozzle are carried out big flow flushing 15 seconds, in order to avoid the dust foreign material of piling up etc. stop up syringe needle or shower nozzle, experimental result is impacted.
(2) by selected mode of operation, and the raininess scope of different stage rainfall on reference display or the PC host computer (heavy rain: raininess〉15.9mm/h, heavy rain: 15.9mm/h〉raininess〉8mm/h, moderate rain: 8mm/h〉raininess〉2.6mm/h, light rain: raininess＜2.6mm/h), the rainfall intensity that input needs.After determining, rainer begins simulated rainfall, and begins to reach stable after 15 seconds.Can constantly change the input of raininess in the rainfall, device begins gearshift behind the new raininess of input, and rainfall reenters stable state after 15 seconds.
(3) disconnect the rainer power switch, simulated rainfall finishes.
The raininess of input program is as follows with the contrast of demarcating raininess:
| Demarcate mm/h | Input mm/h | Demarcate mm/h | Input mm/h | Demarcate mm/h | Input mm/h | |||
| Bassoon | 28.120 | 30 | Tubule | 27.328 | 30 | Shower nozzle | 108.181 | 110 |
| 38.844 | 40 | 39.182 | 40 | 122.143 | 120 | |||
| 50.532 | 50 | 49.288 | 50 | 133.124 | 130 | |||
| 62.070 | 60 | 61.294 | 60 | 144.365 | 140 | |||
| 74.667 | 70 | 73.122 | 70 | 153.183 | 150 |
Generally speaking, this rainer has intelligent degree height, can overall process control automatically, and adaptability and strong operability, the advantage that the rainfall scope is wide can provide strong hardware supported for paddy rice and the research resistant to lodging of similar crops.
Description of drawings
Fig. 1 is the structural representation of apparatus of the present invention.
Fig. 2 is system framework schematic diagram of the present invention.
Fig. 3 is Stm32 control system control main process figure.
Fig. 4 is the rainfall knob control flow sketch of knob pattern among Fig. 3.
Fig. 5 is infrared interruption subroutine general flow chart among Fig. 3.
Fig. 6 is that the host computer among Fig. 3 interrupts the control flow sketch.
Fig. 7 is host computer serial ports control module serial ports initialization flowchart among Fig. 3.
Fig. 8 is button subprogram among Fig. 3.
Fig. 9 is increment type PID closed loop control algorithm general flow chart.
Figure 10 is Stm32 lease core plate circuit theory diagrams.
Figure 11 is Stm32 chip wiring diagram among Figure 10.
Figure 12 is that Jlink downloads wiring diagram among Figure 10.
Figure 13 is reset circuit of SCM among Figure 10.
Figure 14 is power supply cue circuit among Figure 10.
Figure 15 is single-chip microcomputer RTC clock circuit and outer clock circuit among Figure 10.
Figure 16 is the pin of drawing in the minimum system plate among Figure 10.
Figure 17 is adjusted to the circuit theory diagrams of 12V direct current output for the 220V pressure regulation.
Figure 18 is the power module that 12V is converted into 5V and 3.3V on the Stm32 control module.
Figure 19 is 2.4 cun touch-screen display interface wiring circuit.
Figure 20 is the interface circuit of four kinds of modes of operation, is communication port.
Figure 21 is the N-channel MOS tube drive circuit of Stm32 system.
Figure 22 is the DC-DC boost chopper among Figure 21.
Figure 23 is the N-channel MOS management and control circuit processed among Figure 21.
Figure 24 is the metal-oxide-semiconductor H bridge circuit among Figure 21.
Figure 25 is the interface circuit among Figure 21.
Figure 26 is the keyset partial circuit.
The PC control interface that Figure 27 writes for the MFC function of using among the VC++.
Figure 28 is big or small syringe needle pipeline error-raininess graph of a relation.
Figure 29 is shower nozzle error-raininess graph of a relation.
Embodiment
The present invention is further detailed explanation below in conjunction with drawings and Examples.
Need to prove that accompanying drawing only is used for exemplary illustration, can not be interpreted as the restriction to this patent; To those skilled in the art, in the accompanying drawing some known features and explanation thereof may to omit be understandable.
To shown in Figure 29, comprise raindrop generating means, water supply installation and Stm32 micro control system based on the automatic control combination formula rainfall simulator of Stm32 microcontroller as Fig. 1,
Described water supply installation comprises by water storage box, described water storage box and connects 12V direct current miniature diaphragm water pump 8 and flowmeter 14 successively by water pipe 16 that described flowmeter 14 is connected with 3 magnetic valves 7 respectively by pipeline;
Described raindrop generating means comprises the Conic nozzle 12 that is connected and connects by a water supply line 13 and one of them magnetic valve 7, and the 2 cover precipitation conduits 11 that are connected respectively by other 2 water supply lines 13 and other 2 magnetic valves 7, cover precipitation conduit 11 syringe needle that to be furnished with 20 internal diameters be 0.84mm wherein, the syringe needle that it is 0.62mm that another set of precipitation conduit 11 is furnished with 20 internal diameters, the 11 mutual adjacent settings of two cover precipitation conduits; Other is provided with the device support stand of aluminium alloy structure, and described precipitation conduit 11 and water supply water pipe 13 are connected as a single entity by bandage and device support stand 15, detachable movement during carrying;
Described Stm32 micro control system comprises stm32 microcontroller module 5 and the keyset 6 that is connected, described keyset 6 is connected with 12V direct current miniature diaphragm water pump 8, flowmeter 14,3 magnetic valves 7 respectively by holding wire 17, and described stm32 microcontroller module (5) and 12V direct current miniature diaphragm water pump (8) are by power supply 4 power supplies.
Further, described Conic nozzle 12 is arranged on the centre at device support stand 15 tops.
Further, described water storage box is divided into inhalant region 1 by screen pack 3 and the district 2 of drawing water, and the described district 2 of drawing water connects 12V direct current miniature diaphragm water pump 8 and flowmeter 14 successively by water pipe 16.
Further, also be provided with minifilters 9 on the described water pipe 16 that draws water between district 2 and the 12V direct current miniature diaphragm water pump 8.
Further, described 12V direct current miniature diaphragm water pump 8 and stm32 microcontroller module 5 are passed through the DC voltage-stabilizing module for power supply by the 220V AC power, or are directly powered by the DC12V direct-flow storage battery.
Further, described stm32 microcontroller module 5 is operated and is controlled by the mode of touch-screen button, raininess adjusting knob, IR remote controller and PC host computer.
Further, described stm32 microcontroller module 5 adopts the N-channel MOS pipe to drive, and comprises DC-DC copped wave buck chip, N-channel MOS management and control circuit processed and H bridge circuit;
Further, described Stm32 microcontroller module 5 system use traffic meters constitute closed-loop control system as sensor with in conjunction with amount of calculation small incremental formula pid control algorithm, accelerate control response, and this algorithm formula in computer programming is as follows:
Shown in Figure 21 to 23, N-channel MOS management and control circuit processed has mainly adopted metal-oxide-semiconductor to drive chip, the operating voltage of this chip is that 10V is to 20V, in order to guarantee that circuit still can keep the drive circuit operate as normal when use is battery-driven, we have designed this DC-DC booster circuit, and voltage is boosted to operating voltage range from minimum 7V.In order to reduce power consumption, custom-designed booster circuit boosts to 11V in 7V simultaneously.
Figure 24 is the metal-oxide-semiconductor H bridge circuit among Figure 21.This circuit has increased absorption circuit and the shunt capacitance C5 that R12 and C4 form, and the ripple during machine operation that this setting is is littler, and it is more stable to work.
Figure 25 is the interface circuit among Figure 21.Comprise and drive output control water pump interface, PWM dutycycle interface, drive circuit works cue circuit.
Figure 26 is the operating part circuit, is a keyset, and the Stm32 control signal is imported by P20, controls three magnetic valves 7 of P23 ~ P25 and the 12V direct current miniature diaphragm water pump 8 of P26 respectively, and P27 is a pulse flow meter, and output pulse signal is in P20.
Operation use of the present invention is exemplified below:
Select the touch screen operation mode for use
(1) starts the rainer power switch, select the touch screen operation mode for use.By the touch-screen button on the device, the raindrop occurring mode is made as the small pinhead pipeline, and rainfall intensity is adjusted to maximum, the precipitation conduit syringe needle is carried out big flow flushing 15 seconds, in order to avoid the dust foreign material of piling up etc. stop up syringe needle or shower nozzle, experimental result is impacted.
(2) by the touch-screen button, and with reference to the raininess scope of the different stage rainfall that shows on the touch-screen (heavy rain: raininess〉15.9mm/h, heavy rain: 15.9mm/h〉raininess〉8mm/h, moderate rain: 8mm/h〉raininess〉2.6mm/h, light rain: raininess＜2.6mm/h), the rainfall intensity that input needs is 60mm/h.After pressing definite key, rainer begins simulated rainfall, and begins to reach stable after 15 seconds, and demarcating the rainfall intensity that obtains is 61.294mm/h.Change raininess in the rainfall, the input rainfall intensity is 30mm/h.Device begins gearshift behind the new raininess of input, rainfall reenters stable state after 15 seconds, and demarcating the rainfall intensity that obtains is 27.328mm/h.
(3) disconnect the rainer power switch, simulated rainfall finishes.
Select raininess adjusting knob mode of operation for use
(1) starts the rainer power switch, select raininess adjusting knob mode of operation for use.By the button on the device, the raindrop occurring mode is made as the small pinhead pipeline, and rotation raininess adjusting knob is adjusted to maximum with rainfall intensity, the precipitation conduit syringe needle is carried out big flow flushing 15 seconds, in order to avoid the dust foreign material of piling up etc. stop up syringe needle or shower nozzle, experimental result is impacted.
(2) by the raininess adjusting knob, and with reference to the raininess scope of the different stage rainfall that shows on the touch-screen (heavy rain: raininess〉15.9mm/h, heavy rain: 15.9mm/h〉raininess〉8mm/h, moderate rain: 8mm/h〉raininess〉2.6mm/h, light rain: raininess＜2.6mm/h), being adjusted to the rainfall intensity that needs is 70mm/h.After pressing definite key, rainer begins simulated rainfall, and begins to reach stable after 15 seconds, and demarcating the rainfall intensity that obtains is 73.122mm/h.Rotation raininess adjusting knob changes raininess in the rainfall, and the adjusting rainfall intensity is 50mm/h.Device begins gearshift behind the new raininess of input, rainfall reenters stable state after 15 seconds, and demarcating the rainfall intensity that obtains is 49.288mm/h.
(3) disconnect the rainer power switch, simulated rainfall finishes.
Select the IR remote controller mode of operation for use
(1) starts the rainer power switch, select the IR remote controller mode of operation for use.By the button of remote controller, the raindrop occurring mode is made as big syringe needle pipeline, and rainfall intensity is adjusted to maximum, the precipitation conduit syringe needle is carried out big flow flushing 15 seconds, in order to avoid the dust foreign material of piling up etc. stop up syringe needle or shower nozzle, experimental result is impacted.
(2) by the remote controller remote control, and the raininess scope of the different stage rainfall that shows on the reference display (heavy rain: raininess〉15.9mm/h, heavy rain: 15.9mm/h〉raininess〉8mm/h, moderate rain: 8mm/h〉raininess〉2.6mm/h, light rain: raininess＜2.6mm/h), being transferred to the rainfall intensity that needs is 60mm/h.After pressing definite key, rainer begins simulated rainfall, and begins to reach stable after 15 seconds, and demarcating the rainfall intensity that obtains is 62.070mm/h.Change raininess in the rainfall, the input rainfall intensity is 30mm/h.Device begins gearshift behind the new raininess of input, rainfall reenters stable state after 15 seconds, and demarcating the rainfall intensity that obtains is 28.120mm/h.
(3) disconnect the rainer power switch, simulated rainfall finishes.
Select PC host computer mode of operation for use
(1) starts the rainer power switch, select PC host computer mode of operation for use.The PC control interface that Figure 27 writes for the MFC function of using among the VC++.Directly input, rolling input and three of gear inputs are relations in parallel, and we can realize the input of raininess by importing raininess or rolling raininess.
Open the executive software of installing on the computer, on the window interface of opening, the raindrop occurring mode is made as shower nozzle, and rainfall intensity is adjusted to maximum, shower nozzle is carried out big flow flushing 15 seconds, in order to avoid the dust foreign material of piling up etc. stop up syringe needle or shower nozzle, experimental result is impacted.
(2) software window by opening, and the raininess scope of the different stage rainfall that shows on the window (heavy rain: raininess〉15.9mm/h, heavy rain: 15.9mm/h〉raininess〉8mm/h, moderate rain: 8mm/h〉raininess〉2.6mm/h, light rain: raininess＜2.6mm/h), the rainfall intensity that input needs is 110mm/h.After pressing definite key, rainer begins simulated rainfall, and begins to reach stable after 15 seconds, and demarcating the rainfall intensity that obtains is 108.181mm/h.Change raininess in the rainfall, the input rainfall intensity is 130mm/h.Device begins gearshift behind the new raininess of input, rainfall reenters stable state after 15 seconds, and demarcating the rainfall intensity that obtains is 133.124mm/h.
(3) disconnect the rainer power switch, simulated rainfall finishes.
Wherein, above-mentioned selected option of operation, difference according to actual needs can arrange by different modes, different time points.Above-mentioned setting duty is recovered condition, based on the difference of actual needs, also different settings can be arranged.Below describe with variant implementation respectively.
Other technologies feature in the system of the present invention and concrete implementation can with the inventive method in identical, will not add to give unnecessary details at this.
Obviously, that describes position relation in the accompanying drawing only is used for exemplary illustration, can not be interpreted as the restriction to this patent; The above embodiment of the present invention only is for example of the present invention clearly is described, and is not to be restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all embodiments exhaustive.All any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within the protection domain of claim of the present invention.
Claims (8)
1. based on the automatic control combination formula rainfall simulator of Stm32 microcontroller, comprise raindrop generating means, water supply installation and Stm32 micro control system three parts, it is characterized in that:
Described water supply installation comprises by water storage box, described water storage box and connects 12V direct current miniature diaphragm water pump (8) and flowmeter (14) successively by water pipe (16) that described flowmeter (14) is connected with 3 magnetic valves (7) respectively by pipeline;
Described raindrop generating means comprises the Conic nozzle (12) that is connected and connects with one of them magnetic valve (7) by a water supply line (13), and the 2 cover precipitation conduits (11) that are connected respectively by other 2 water supply lines (13) and other 2 magnetic valves (7), cover precipitation conduit (a 11) syringe needle that to be furnished with 20 internal diameters be 0.84mm wherein, the syringe needle that it is 0.62mm that another set of precipitation conduit (11) is furnished with 20 internal diameters, the mutual adjacent setting of two cover precipitation conduits (11); Other is provided with the device support stand of aluminium alloy structure, and described precipitation conduit (11) and water supply water pipe (13) are connected as a single entity by bandage and device support stand (15), detachable movement during carrying;
Described Stm32 micro control system comprises stm32 microcontroller module (5) and the keyset (6) that is connected, described keyset (6) is connected with 12V direct current miniature diaphragm water pump (8), flowmeter (14), 3 magnetic valves (7) respectively by holding wire (17), and described stm32 microcontroller module (5) and 12V direct current miniature diaphragm water pump (8) are by power supply 4 power supplies.
2. the automatic control combination formula rainfall simulator based on the Stm32 microcontroller according to claim 1, it is characterized in that: described Conic nozzle (12) is arranged on the centre at device support stand (15) top.
3. the automatic control combination formula rainfall simulator based on the Stm32 microcontroller according to claim 1, it is characterized in that: described water storage box is divided into inhalant region (1) and the district (2) of drawing water by screen pack (3), and the described district (2) of drawing water connects 12V direct current miniature diaphragm water pump (8) and flowmeter (14) successively by water pipe (16).
4. the automatic control combination formula rainfall simulator based on the Stm32 microcontroller according to claim 3 is characterized in that: also be provided with minifilters (9) on the described water pipe (16) that draws water between district (2) and the 12V direct current miniature diaphragm water pump (8).
5. the automatic control combination formula rainfall simulator based on the Stm32 microcontroller according to claim 1 is characterized in that: described power supply 4 be the 220V AC power through the DC voltage-stabilizing module for power supply, or directly powered by the DC12V direct-flow storage battery.
6. the automatic control combination formula rainfall simulator based on the Stm32 microcontroller according to claim 1, it is characterized in that: described stm32 microcontroller module (5) is operated and is controlled by the mode of touch-screen button, raininess adjusting knob, IR remote controller and PC host computer.
7. the automatic control combination formula rainfall simulator based on the Stm32 microcontroller according to claim 1, it is characterized in that: described stm32 microcontroller module (5) adopts the N-channel MOS pipe to drive, and comprises DC-DC copped wave buck chip, N-channel MOS management and control circuit processed and H bridge circuit.
8. the automatic control combination formula rainfall simulator based on the Stm32 microcontroller according to claim 1, it is characterized in that: described Stm32 microcontroller module (5) system use traffic meter constitutes closed-loop control system as sensor with in conjunction with amount of calculation small incremental formula pid control algorithm, accelerate control response, this algorithm formula in computer programming is as follows:
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