CN107328546A - A kind of wind-tunnel object control device - Google Patents
A kind of wind-tunnel object control device Download PDFInfo
- Publication number
- CN107328546A CN107328546A CN201710665636.1A CN201710665636A CN107328546A CN 107328546 A CN107328546 A CN 107328546A CN 201710665636 A CN201710665636 A CN 201710665636A CN 107328546 A CN107328546 A CN 107328546A
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- wind
- control device
- airduct
- tunnel
- chip microcomputer
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- 239000004973 liquid crystal related substance Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 5
- 239000011159 matrix material Substances 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 229940125368 controlled substance Drugs 0.000 description 1
- 239000000599 controlled substance Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
Abstract
The invention discloses a kind of wind-tunnel object control device, including airduct, connecting portion, blower fan, controlled object, single-chip microcomputer, ultrasonic distance-measuring sensor and fan drive circuit, blower fan is arranged at BOD, and be tightly connected by connecting portion realization with airduct, airduct, connecting portion and blower fan constitute simple wind-tunnel；Controlled object is positioned in airduct；Ultrasonic distance-measuring sensor is arranged at airduct top, and is connected with single-chip microcomputer input, for monitoring the position height of controlled object and measured altitude information being sent into single-chip microcomputer；The input of fan drive circuit is connected with single-chip microcomputer output, output end is connected with blower fan, for receiving the pwm control signal that single-chip microcomputer requires to export after calculating the altitude information that ultrasonic distance-measuring sensor is transmitted according to control, and control the rotating speed of blower fan and then control the running status of controlled object, reach control and require.This wind-tunnel object control device has the features such as simple in construction, easy to operate, measurement is accurate.
Description
Technical field
The present invention relates to wind tunnel test field, more particularly to a kind of wind-tunnel object control device.
Background technology
Wind-tunnel, refers in a pipeline, the air-flow for driving one speed controllable with power-equipment, to be carried out to model
A kind of equipment of aerodynamic experiment.With the development of industrial aerodynamics, wind-tunnel is in communications and transportation, building construction, instrument
Also increasingly it is widely applied in the departments such as detection, wind energy utilization and environmental protection.
The solution of the present invention is the improvement carried out for existing wind-tunnel object control device.
The content of the invention
In order to overcome deficiency of the prior art, the present invention provides a kind of wind-tunnel object control device, with it is simple in construction,
It is easy to operate, measure it is accurate the features such as.
In order to reach foregoing invention purpose, the technical scheme that its technical problem used is solved as follows：
A kind of wind-tunnel object control device, including airduct, connecting portion, blower fan, controlled object, single-chip microcomputer, ultrasonic ranging
Sensor and fan drive circuit, wherein：
The blower fan is arranged at the bottom of the airduct, and realizes that the sealing with the airduct connects by the connecting portion
Connect, the airduct, connecting portion and blower fan constitute a simple wind-tunnel；
The controlled object is positioned in the airduct；
The ultrasonic distance-measuring sensor is arranged at the top of the airduct, and is connected with the input of the single-chip microcomputer,
For monitoring the position height of the controlled object and measured altitude information being sent into the single-chip microcomputer；
The input of the fan drive circuit is connected with the output end of the single-chip microcomputer, and output end connects with the blower fan
Connect, required to calculate the altitude information that the ultrasonic distance-measuring sensor is transmitted according to control for receiving the single-chip microcomputer
The pwm control signal exported afterwards, and control the rotating speed of the blower fan and then control the running status of the controlled object, reach it
Required to control.
Further, certain altitude is reserved on the top of the ultrasonic distance-measuring sensor and the airduct, for conveniently taking
Put the controlled object.
Further, in addition to key circuit, the key circuit is connected with the input of the single-chip microcomputer, for according to
Control requires arrange parameter and sets the hoverheight and the method for operation of the controlled object.
Further, in addition to liquid crystal display circuit, the liquid crystal display circuit is connected with the output end of the single-chip microcomputer,
For the height for showing the controlled object in real time, the timing for maintaining state, the pattern of operation and the parameter value of setting.
It is preferred that, the liquid crystal display circuit uses LCD12864 type dot-matrix lcd modules.
Further, the BOD is provided with grid, for preventing the controlled object from falling into the connecting portion.
It is preferred that, the airduct uses and is labeled with scale on transparent acrylic pipe, the airduct, is easy to from external observation
The run location and running status of the controlled object in pipe.
It is preferred that, the blower fan uses direct current adjustable speed blower fan.
It is preferred that, the blower fan is attached using the connected mode of two-stage fans in series, for concentrating wind direction and increasing
Wind-force.
It is preferred that, the fan drive circuit uses L298 type driving chips.
It is preferred that, the ultrasonic distance-measuring sensor uses HC-SR04 type ultrasonic distance measuring modules.
It is preferred that, the single-chip microcomputer uses STC12C5A60S2 type single-chip microcomputers.
The present invention is allowed to compared with prior art, have the following advantages that and actively imitate due to using above technical scheme
Really：
The present invention provides a kind of wind-tunnel object control device, using STC12C5A60S2 single-chip microcomputers as kernel control chip, system
Make a kind of simple wind-tunnel, realize suspension control and the control device of special exercise of object.Wherein, airduct, connecting portion and adjustable
Fast blower fan constitutes a simple wind-tunnel, and controlled object is in wind-tunnel, and ultrasonic sensor is used to monitor controlled substance on wind-tunnel top
The position height of body.Measured data are sent to single-chip microcomputer by ultrasonic distance-measuring sensor, and single-chip microcomputer requires to carry out according to control
After calculating, pwm control signal is exported, the output signal size to fan drive circuit is controlled, you can change blower fan wind speed
Size, the position of controlled object is controlled with operation so as to realize.Meanwhile, liquid crystal display screen display controlled object it is real-time
Height and controlled object maintain the timing of state, the pattern of display controlled object operation and the parameter value set.In addition, the present apparatus
Also 4 control buttons, can be operated to different control requirements, for setting control to require that parameter, controlled object suspend
Highly, the method for operation.This wind-tunnel object control device has the features such as simple in construction, easy to operate, measurement is accurate.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, being used required in being described below to embodiment
Accompanying drawing be briefly described.It is clear that drawings in the following description are only some embodiments of the present invention, for ability
For field technique personnel, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.It is attached
In figure：
Fig. 1 is a kind of device pictorial diagram of wind-tunnel object control device of the invention；
Fig. 2 is the system block diagram in a kind of wind-tunnel object control device of the invention；
Fig. 3 is the circuit diagram of the single-chip microcomputer in a kind of wind-tunnel object control device of the invention；
Fig. 4 is the circuit diagram of the ultrasonic distance-measuring sensor in a kind of wind-tunnel object control device of the invention；
Fig. 5 is the circuit diagram of the fan drive circuit in a kind of wind-tunnel object control device of the invention；
Fig. 6 is the circuit diagram of the key circuit in a kind of wind-tunnel object control device of the invention；
Fig. 7 is the circuit diagram of the liquid crystal display circuit in a kind of wind-tunnel object control device of the invention.
【Primary symbols explanation】
1- airducts；
2- connecting portions；
3- blower fans；
4- controlled objects；
5- ultrasonic distance-measuring sensors；
6- key circuits；
7- single-chip microcomputers；
8- liquid crystal display circuits；
9- fan drive circuits.
Embodiment
Below with reference to the accompanying drawing of the present invention, clear, complete description is carried out to the technical scheme in the embodiment of the present invention
And discussion, it is clear that as described herein is only a part of example of the present invention, is not whole examples, based on the present invention
In embodiment, the every other implementation that those of ordinary skill in the art are obtained on the premise of creative work is not made
Example, belongs to protection scope of the present invention.
As illustrated in fig. 1 and 2, the invention discloses a kind of wind-tunnel object control device, including airduct 1, connecting portion 2, blower fan
3rd, controlled object 4, single-chip microcomputer 7, ultrasonic distance-measuring sensor 5 and fan drive circuit 9, wherein：
The blower fan 3 is arranged at the bottom of the airduct 1, and realizes the sealing with the airduct 1 by the connecting portion 2
Connection, the airduct 1, connecting portion 2 and blower fan 3 constitute a simple wind-tunnel；
The controlled object 4 is positioned in the airduct 1；
The ultrasonic distance-measuring sensor 5 is arranged at the top of the airduct 1, and connects with the input of the single-chip microcomputer 7
Connect, for monitoring the position height of the controlled object 4 and measured altitude information being sent into the single-chip microcomputer 7；
The input of the fan drive circuit 9 is connected with the output end of the single-chip microcomputer 7, output end and the blower fan 3
Connection, requires to carry out the altitude information that the ultrasonic distance-measuring sensor 5 is transmitted for receiving the single-chip microcomputer 7 according to control
The pwm control signal exported after calculating, and control the rotating speed of the blower fan 3 and then control the running status of the controlled object 4,
Control is reached to require.
Further, certain altitude is reserved on the top of the ultrasonic distance-measuring sensor 5 and the airduct 1, for convenient
Pick and place the controlled object 4.
Further, the bottom of airduct 1 is provided with grid (not shown), for preventing the controlled object 4 from falling into institute
State in connecting portion 2.
It is preferred that, the airduct 1 uses and is labeled with scale on transparent acrylic pipe, the airduct 1, is easy to from outside sight
Examine the run location and running status of the controlled object 4 in pipe.
It is preferred that, the blower fan 3 uses direct current adjustable speed blower fan.The blower fan 3 uses the connection side of two-stage fans in series
Formula is attached, for concentrating wind direction and increasing wind-force.
As shown in figure 3, the single-chip microcomputer 7 uses STC12C5A60S2 type single-chip microcomputers.
As shown in figure 4, the ultrasonic distance-measuring sensor 5 uses HC-SR04 type ultrasonic distance measuring modules.The module can be carried
For 2cm-400cm contactless distance sensing function, range accuracy arrives 3mm up to high.Module includes ultrasonic transmitter, connect
Device and control circuit are received, its sensing angle is not more than 15 °, it is possible to reduce significant portion angle interference that may be present is asked
Topic.Ultrasonic distance measuring module has performance stable, and measure distance is accurate, module high accuracy, the features such as blind area is small.Groundwork is former
Reason：Ranging is triggered using I/O port TRIG, at least 10us high level signal；Module sends 8 40khz square wave automatically, from
It is dynamic to have detected whether signal return；There is signal return, a high level is exported by I/O port ECHO, high level duration is just
It is ultrasonic wave from the time for being transmitted into return.Measuring distance=(the high level time * velocities of sound (340M/S))/2.Wherein VCC supplies 5V
Power supply, GND is ground wire, and TRIG Trig control signals are inputted, four branch lines such as ECHO response signals output.HC-SR04 ultrasonic wave collection
Into in module, ECHO pin connect the P32 pin of the single-chip microcomputer 7, and Trig pin connect the P33 pin of the single-chip microcomputer 7.
Ultrasonic wave is sent by ultrasonic transmission device, time difference when ultrasonic wave is connected to according to receiver determines distance.
This distance-finding method is lower than other location technology ultrasonic wave location technology costs, and it is easy to make, and precision is high, and it is excellent that measurement range is big etc.
Point, the scope of application is quite extensive, is very suitable for short distance measurement and positioning, but be not suitable for the ranging compared with wisp.
As shown in figure 5, the fan drive circuit 9 uses L298 type driving chips, behind connect the blower fan 3.L298
The input control end IN1/IN2 connections single-chip microcomputer 7 P30, P31 mouth.The single-chip microcomputer 7 is in P30, P31 mouthfuls of output pulse widths
Modulated signal PWM, and then the rotating speed of the blower fan 3 is controlled, realize the height to controlled object 4 and the control of run location.
As shown in fig. 6, the wind-tunnel object control device also includes key circuit 6, the key circuit 6 and the monolithic
The input connection of machine 7, for requiring arrange parameter and the hoverheight for setting the controlled object 4 and operation side according to control
Formula.Specifically, Fig. 6 is control button circuit, K1 is control model button, and K2 is that numerical value increases button, and K3 is reduced for numerical value and pressed
Key, K4 is confirmation button.K1 is connected with the P10 pin of the single-chip microcomputer 7, and K2 is connected with the P11 pin of the single-chip microcomputer 7, K3 and institute
The P12 pin connection of single-chip microcomputer 7 is stated, K4 is connected with the P13 pin of the single-chip microcomputer 7.K1 buttons are controlled pattern setting, including such as
Lower pattern：
Pattern one：Controlled object 4 is suspended in a certain set height position, and fluctuation up and down is no more than ± 1cm, controlled object 4
It can be set in some position suspension stay time；
Pattern two：Controlled object 4 is in the interval up and down motion of a certain height, and controlled object 4 is placed in pipe bottom, after startup
Controlled object 4 is up to AB section and maintains the regular hour for control in 30 seconds, still further below CD sections of arrival and when remaining certain
Between, so move up and down.
The another control device has automatic protected mode：
Controlled object 4 is put into wind-tunnel from A ends when the blower fan 3 stops, the controlled object 4 enter after wind-tunnel system from
Dynamic to start, the whereabouts of control controlled object 4 is no more than D points, is maintained at BC sections.
Controlled object 4 is placed in pipe bottom, and controlled object 4 is controlled up to A ends at pipe top in 5 seconds after startup,
And do not jump out of.
Height and time numerical value in above-mentioned all patterns can be configured by K2, K3, K4 button.
As shown in fig. 7, the wind-tunnel object control device also include liquid crystal display circuit 8, the liquid crystal display circuit 8 with
The single-chip microcomputer 7 output end connection, for show in real time the controlled object 4 height, maintain state timing, operation
Pattern and the parameter value of setting.It is preferred that, the liquid crystal display circuit 8 shows mould using LCD12864 types lattice graphics lcd
Block, can show common Chinese character, numbers and symbols.The display circuit can show current operation mode, in real time display by
The height and position and controlled object for controlling object maintain the timing of state.LCD DB0-BD7 is connected to the P00- of the single-chip microcomputer 7
P07 pin, CS1, CS2 connect P20, P21 pin of the single-chip microcomputer 7, RS, RW and E pin connect the single-chip microcomputer 7 P22, P23 and
P24 pin.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, the change or replacement that can be readily occurred in,
It should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with scope of the claims
It is defined.
Claims (12)
1. a kind of wind-tunnel object control device, it is characterised in that including airduct, connecting portion, blower fan, controlled object, single-chip microcomputer, super
Sound ranging sensor and fan drive circuit, wherein：
The blower fan is arranged at the bottom of the airduct, and is realized and be tightly connected with the airduct by the connecting portion, institute
State airduct, connecting portion and blower fan and constitute a simple wind-tunnel；
The controlled object is positioned in the airduct；
The ultrasonic distance-measuring sensor is arranged at the top of the airduct, and is connected with the input of the single-chip microcomputer, is used for
Monitor the position height of the controlled object and measured altitude information is sent to the single-chip microcomputer；
The input of the fan drive circuit is connected with the output end of the single-chip microcomputer, and output end is connected with the blower fan, is used
It is defeated after the single-chip microcomputer requires to calculate the altitude information that the ultrasonic distance-measuring sensor is transmitted according to control in receiving
The pwm control signal gone out, and control the rotating speed of the blower fan and then control the running status of the controlled object, reach control
System is required.
2. a kind of wind-tunnel object control device according to claim 1, it is characterised in that the ultrasonic distance-measuring sensor
Certain altitude is reserved with the top of the airduct, for conveniently picking and placeing the controlled object.
3. a kind of wind-tunnel object control device according to claim 1, it is characterised in that described also including key circuit
Key circuit is connected with the input of the single-chip microcomputer, for requiring arrange parameter according to control and setting the controlled object
Hoverheight and the method for operation.
4. a kind of wind-tunnel object control device according to claim 1, it is characterised in that also including liquid crystal display circuit,
The liquid crystal display circuit is connected with the output end of the single-chip microcomputer, for showing the height of the controlled object in real time, maintaining
The parameter value of the timing of state, the pattern run and setting.
5. a kind of wind-tunnel object control device according to claim 4, it is characterised in that the liquid crystal display circuit is used
LCD12864 type dot-matrix lcd modules.
6. a kind of wind-tunnel object control device according to claim 1, it is characterised in that the BOD is provided with lattice
Grid, for preventing the controlled object from falling into the connecting portion.
7. a kind of wind-tunnel object control device according to claim 1, it is characterised in that the airduct is using transparent sub- gram
Scale is labeled with power pipe, the airduct, is easy to the run location of the controlled object and operation shape out of external observation pipe
State.
8. a kind of wind-tunnel object control device according to claim 1, it is characterised in that the blower fan is adjustable using direct current
Fast blower fan.
9. a kind of wind-tunnel object control device according to claim 1 or 8, it is characterised in that the blower fan uses two-stage
The connected mode of fans in series is attached, for concentrating wind direction and increasing wind-force.
10. a kind of wind-tunnel object control device according to claim 1, it is characterised in that the fan drive circuit is adopted
With L298 type driving chips.
11. a kind of wind-tunnel object control device according to claim 1, it is characterised in that the ultrasonic ranging sensing
Device uses HC-SR04 type ultrasonic distance measuring modules.
12. a kind of wind-tunnel object control device according to claim 1, it is characterised in that the single-chip microcomputer is used
STC12C5A60S2 type single-chip microcomputers.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710665636.1A CN107328546A (en) | 2017-08-07 | 2017-08-07 | A kind of wind-tunnel object control device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710665636.1A CN107328546A (en) | 2017-08-07 | 2017-08-07 | A kind of wind-tunnel object control device |
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| Publication Number | Publication Date |
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| CN107328546A true CN107328546A (en) | 2017-11-07 |
Family
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| CN201710665636.1A Pending CN107328546A (en) | 2017-08-07 | 2017-08-07 | A kind of wind-tunnel object control device |
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| CN107941452A (en) * | 2017-12-21 | 2018-04-20 | 华南理工大学广州学院 | A kind of wind-force measure and control device and its control method |
| CN108519210A (en) * | 2018-04-12 | 2018-09-11 | 西京学院 | A kind of simple wind tunnel model and control method based on PID control |
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