CN108759984A - A kind of transparent pipeline liquid level emasuring device - Google Patents
A kind of transparent pipeline liquid level emasuring device Download PDFInfo
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- CN108759984A CN108759984A CN201810829140.8A CN201810829140A CN108759984A CN 108759984 A CN108759984 A CN 108759984A CN 201810829140 A CN201810829140 A CN 201810829140A CN 108759984 A CN108759984 A CN 108759984A
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- transparent pipeline
- liquid level
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- sealing plate
- infrared
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- 239000007788 liquid Substances 0.000 title claims abstract description 65
- 238000007789 sealing Methods 0.000 claims abstract description 59
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000006243 chemical reaction Methods 0.000 claims abstract description 20
- 238000001514 detection method Methods 0.000 claims abstract description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052802 copper Inorganic materials 0.000 claims abstract description 12
- 239000010949 copper Substances 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 claims abstract description 12
- 238000012545 processing Methods 0.000 claims abstract description 10
- 238000006073 displacement reaction Methods 0.000 claims abstract description 4
- 238000004804 winding Methods 0.000 claims abstract description 4
- 241001476363 Centropyge acanthops Species 0.000 claims description 4
- 230000008094 contradictory effect Effects 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 230000010354 integration Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 29
- 230000002262 irrigation Effects 0.000 abstract 1
- 238000003973 irrigation Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 238000005457 optimization Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 235000021251 pulses Nutrition 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 235000020095 red wine Nutrition 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/284—Electromagnetic waves
- G01F23/292—Light, e.g. infrared or ultraviolet
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a kind of transparent pipeline liquid level emasuring devices, its drip irrigation device includes pedestal, two support columns, it is parallel to the sealing plate of support column, sealing block in support top end is set, the transparent pipeline being arranged between two support columns, and measuring system, measuring system includes the detection module being made of several infrared diodes and infrared remote receiver, route selection module, analog-to-digital conversion module, and signal processing module, transparent pipeline, which is corresponded to, on the sealing plate of the installation infrared remote receiver offers mounting groove, the side of mounting groove is provided with the energization copper sheet for connecting one pin of infrared remote receiver, another side slip of mounting groove is connected with pcb board, the both ends of pcb board are connected by winding displacement plate with route selection module respectively；Route selection module is set as multistage multiway analog switch, and the way selected by the analog switches at different levels is different；By the way that multistage multiway analog switch is arranged, the level condition in transparent pipeline can be accurately detected, measurement accuracy is improved.
Description
Technical field
The present invention relates to medical fields of measurement, more specifically, it relates to a kind of transparent pipeline liquid level emasuring device.
Background technology
The liquid level in uniform pipeline is measured, liquid volume can be obtained, according to time liquid level pipe diameter, can be surveyed
Measuring out liq flow velocity.
Ensure the real-time and measurement accuracy that measure.Conventional scheme is emitted and is received, liquid level meeting using optical element
Change the output of receiving area.Existing measuring device is the optical element for ensureing measurement accuracy and usually selecting volume larger, to lead
Cause intensive can not be installed, it is difficult to reach degree of precision.
Invention content
In view of the deficiencies of the prior art, the present invention intends to provide a kind of transparent pipeline liquid level emasuring device,
It can be by reaching required precision in the intensive multiple miniaturized components of installation of test position.
To achieve the above object, the present invention provides following technical solutions：
A kind of transparent pipeline liquid level emasuring device, including pedestal, two be fixed on the base surface support parallel to each other vertically
Column, is arranged in the sealing block for supporting top end, the transparent pipe being arranged between two support columns the sealing plate for being parallel to support column
Road and measuring system for measuring transparent pipeline liquid level, the sealing block are parallel to pedestal, and the transparent pipeline is parallel to
The length-wise axis of support column, the support column are connect with sealing block and base integrated, the sealing plate fitted seal block
The top of transparent pipeline level gauge and side are sealed；
The measuring system includes the detection module being made of several infrared diodes and infrared remote receiver, is connected to detection module
The route selection module for carrying out routing to signal, be connected to route selection module for converting analog signals into the mould of digital signal
It counts conversion module and is connected to signal processing module of the route selection module for handling digital signal；
Strip mounting groove is offered on the sealing plate, the mounting groove on one of sealing plate is for installing infrared receiver
Device, the mounting groove on another piece of sealing plate is in installation infrared diode；The mounting groove is parallel to transparent pipeline length direction；
The side of the mounting groove is provided with the energization copper sheet being connected with the one of pin of infrared remote receiver, the mounting groove
It is connected with pcb board away from a side slip of energization copper sheet, is provided on pcb board for contradicting infrared remote receiver another pin
The both ends of spring jumping bean, the pcb board are connected by winding displacement plate with route selection module；
The route selection module includes multigroup multistage multiway analog switch, and the number of vias of the analog switches at different levels in each group is equal
It is different.
By using above-mentioned technical proposal, transparent pipeline is for storing liquid, and sealing plate fitted seal block is by transparent pipeline
Liquid level emasuring device is sealed, to reduce interference of the ambient to measurement result；It is powered by being arranged in mounting groove
Two pins of copper coin and pcb board, infrared remote receiver are contradicted respectively on energization copper coin and pcb board, so as to as needed
The optical element for replacing different volumes, is replaced and is installed to facilitate；The detection module of measuring system is in transparent pipeline
Level condition is detected, and when liquid level is not detected, exports null signals, real position signal is exported when detecting liquid level, together
When route selection module the signal of detection module is selected by multistage multiway analog switch, and export inquiry consequential signal, when
When analog-to-digital conversion module receives inquiry consequential signal, analog-to-digital conversion module carries out analog-to-digital conversion to inquiry consequential signal and exports
Digital signal passes through carry out samsara inquiry side from bottom to top after signal processing module receives digital signal to digital signal
Formula is compared with the threshold value pre-entered successively, when obtained result is less than threshold value, is indicated that present bit is equipped with liquid, is needed
It selects the roads n+1 signal to repeat detection process, when obtained result is not less than threshold value, indicates that current location does not have liquid, to
It is n-1 to obtain liquid level.
Preferably, the multiway analog switch is provided with multiple, and multiple multiway analog switches at the same level connect the same height
The multiway analog switch of level-one.
By using above-mentioned technical proposal, variable connector is set as multiple, a few variable connector can used
Detection can be completed, reduce error, while the same higher leveled multichannel mould is connected by multiple multiway analog switches at the same level
The mode of quasi- switch can reduce influence of the shake during circuit transformations to measurement result, to ensure measurement accuracy.
Preferably, the infrared remote receiver correspond and be mutually parallel to infrared diode be sequentially arranged in corresponding peace
In tankage, and the light of infrared diode is just received through transparent pipeline by infrared remote receiver.
By using above-mentioned technical proposal, infrared remote receiver and infrared diode are corresponded, infrared receiver can be made
Device receives only the signal of an infrared diode, reduces the influence of the signal of adjacent infrared diode, improves measurement essence
Degree.
Preferably, being equipped with original screen panel between the sealing plate and support column, the original screen panel is equipped with several for limiting
The grating of receiving light path.
By using above-mentioned technical proposal, grating can further limit the signal received by infrared remote receiver,
The signal for shielding adjacent infrared diode, to further reduce adjacent infrared diode signal influence, improve survey
Accuracy of measurement.
Preferably, the both ends of the transparent pipeline are threadedly coupled with pedestal and sealing block respectively.
By using above-mentioned technical proposal, transparent pipeline can be removed between pedestal and sealing block, convenient as needed
Transparent pipeline is replaced, is improved work efficiency.
Preferably, being equipped with bolster between the original screen panel and sealing plate, cushion seal plate is used between the buffering to branch
The pressure of dagger conduction, the bolster includes the rubber strip being arranged between original screen panel and sealing plate, and the rubber strip is parallel
In the length direction of transparent pipeline, and the length of rubber strip is identical as the length of mounting groove.
By using above-mentioned technical proposal, rubber strip can form buffer layer between sealing plate and original screen panel, thus compared with
External impact suffered by few original screen panel, improves the service life of original screen panel.
Preferably, be equipped with several short columns on the sealing plate, the short column towards transparent pipeline, the bolster and
Grating offers the mounting hole that cooperation short column is inserted into, and the short column is matched with mounting hole for limiting original screen panel relative to saturating
The position of bright pipeline.
By using above-mentioned technical proposal, short column matched with mounting hole can to the installation site of bolster and grating into
Row limits, and avoids the installation site of grating and bolster from deviation occur and influences measurement result, improves measurement accuracy, carry simultaneously
High installation effectiveness.
Preferably, the transparent pipeline is at least provided with two.
It can make measuring device by least two transparent pipelines are arranged by using above-mentioned technical proposal while measure
A plurality of transparent pipeline, improves measurement efficiency.
Preferably, being provided with three-way valve at the top of the sealing block, the three-way valve is connected to transparent pipeline top, outside
Portion's liquid enters through three-way valve in transparent pipeline.
By using above-mentioned technical proposal, the speed and flow for entering transparent pipeline to liquid by three-way valve is controlled
System, to facilitate the liquid level adjusted according to measurement result in transparent pipeline, improves work efficiency.
In conclusion the invention has the advantages that：
1, by the way that multistage multiway analog switch is arranged, the level condition in transparent pipeline can be accurately detected, measurement is improved
Precision；
2, by the way that original screen panel is arranged, influence of the adjacent signals to measurement result can be reduced, measurement accuracy is improved；
3, by the way that infrared diode and infrared remote receiver to be arranged correspondingly, infrared remote receiver can be made to receive only one
The signal of infrared diode reduces the influence of the signal of adjacent infrared diode, improves measurement accuracy.
Description of the drawings
Fig. 1 is a kind of transparent pipeline liquid level emasuring device Structure explosion diagram；
Fig. 2 is a kind of transparent pipeline liquid level emasuring device structure backlash figure；
Fig. 3 is measuring system circuit diagram；
Fig. 4 is detection module circuit diagram；
Fig. 5 is infrared receiving module and route selection module circuit diagram；
Fig. 6 is analog-to-digital conversion module circuit diagram；
Fig. 7 is signal processing module circuit diagram；
Fig. 8 is sealing plate sectional view；
Fig. 9 is schematic enlarged-scale view at the A of Fig. 8.
Reference numeral：1, pedestal；2, support column；3, sealing plate；31, infrared diode；32, infrared remote receiver；33, grating
Plate；34, short column；35, mounting hole；36, three-way valve；37, rubber strip；4, sealing block；5, transparent pipeline；6, measuring system；61,
Detection module；611, start unit；612, output unit is controlled；613, signal transmitter unit；62, infrared receiving module；63, it selects
Road module；64, analog-to-digital conversion module；65, signal processing module；66, mounting groove；661, energization copper sheet；662, pcb board；663,
Spring jumping bean.
Specific implementation mode
Below in conjunction with attached drawing, invention is further described in detail, wherein the identical reference numeral of identical parts
It indicates.It should be noted that word "front", "rear" used in the following description, "left", "right", "up" and "down", " bottom surface " and
" top surface " refers to that the direction in attached drawing, word "inner" and "outside" are referred respectively to towards or away from geometric center of specific component
Direction.
A kind of transparent pipeline liquid level emasuring device, as shown in Figure 1, pedestal 1, two is vertical, to be fixed on 1 upper surface of pedestal mutual
Parallel support column 2, the sealing plate 3 for being parallel to support column 2, be arranged 2 top of support column sealing block 4, be arranged at two
Transparent pipeline 5 between support column 2；Sealing block 4 is parallel to pedestal 1, and transparent pipeline 5 is parallel to the longitudinal axis of support column 2
Line, support column 2）Connection integrated with sealing block 4 and pedestal 1；Transparent pipeline 5 is for storing liquid, 3 fitted seal block of sealing plate
4 respectively will be sealed the side of transparent pipeline liquid level emasuring device and top, to reduce ambient to measurement result
Interference；The connection integrated with sealing block 4 and pedestal 1 of support column 2, to convenient to support column 2 and sealing block 4 and pedestal 1
It is processed.
Further, as shown in Figures 1 and 2, strip mounting groove 66 is offered on the sealing plate 3, mounting groove 66 is flat
Row is in the length direction of transparent pipeline 5；If being arranged in sequence with extra dry red wine from top to bottom in the mounting groove 66 on one of sealing plate 3
Outer receiver 32 is arranged in sequence with several infrared diodes 31 in the mounting groove 66 on another piece of sealing plate from top to bottom；It is infrared
Receiver 32 is corresponded and is mutually parallel with infrared diode 31, and the light of infrared diode 31 just penetrates transparent pipeline
5 are received by infrared remote receiver 32, to reduce adjacent infrared diode 31 signal influence, improve measurement accuracy.
Further, as shown in Figures 1 and 2, original screen panel 33, the grating are equipped between the sealing plate 3 and support column 2
Plate 33 is equipped with several gratings for limiting receiving light path；Grating the signal received by infrared remote receiver 32 can be done into
One step limits, and shields the signal of adjacent infrared diode 31, to further reduce the signal of adjacent infrared diode 31
It influences, improves measurement accuracy.
Further, as shown in Figures 1 and 2, the bolster for buffering is equipped between original screen panel 33 and sealing plate 3, it is excellent
Change, bolster is set as two rubber strips 37 for being parallel to 5 length direction of transparent pipeline, and the length of rubber strip 37 and installation
The length of slot 66 is identical.Rubber strip 37 can form buffer layer between sealing plate 3 and original screen panel 33, to less original screen panel 33
Suffered external impact improves the service life of original screen panel 33.
Optimization, as shown in Figure 1, sealing plate 3 is equipped with several short columns 34, the short column 34 is described towards transparent pipe 5
The mounting hole 35 that cooperation short column 34 is inserted into is offered on bolster and original screen panel 33, the short column 34 is matched with mounting hole 35
For limiting position of the original screen panel 33 relative to transparent pipeline 5；Short column 34 coordinates mounting hole 35 can be to bolster and original screen panel
33 installation site is defined, and is avoided the installation site of original screen panel 33 and bolster from deviation occur and is influenced measurement result, carries
High measurement accuracy, while improving installation effectiveness.
Optimization, as shown in Figures 1 and 2, for transparent pipeline 5 at least provided with two, the both ends of the transparent pipeline of each 5 are equal
It is threadedly coupled respectively with pedestal 1 and sealing block 4；4 top of sealing block is provided with three-way valve 36, and the three-way valve 36 is connected to
5 top of transparent pipeline, outside liquid enter through three-way valve 36 in transparent pipeline 5；By the way that at least two transparent pipelines 5 are arranged,
It can make measuring device while measure a plurality of transparent pipeline 5, improve measurement efficiency；By by transparent pipeline 5 and pedestal 1 and close
The envelope threaded connection of block 4 can be such that transparent pipeline 5 is removed between pedestal 1 and sealing block 4, convenient to replace transparent pipeline as needed
5, it improves work efficiency；The speed and flow for entering transparent pipeline 5 to liquid by three-way valve 36 controls, to side
Just the liquid level in transparent pipeline 5 is adjusted according to measurement result, improved work efficiency.
As shown in figure 3, a kind of transparent pipeline liquid level emasuring device further includes the measurement system for measuring 5 liquid level of transparent pipeline
System 6, the measuring system 6 include：
Detection module 61 is arranged on sealing plate 3, for generating infrared survey signal；
Infrared receiving module 62 is arranged on sealing plate 3, for receiving infrared survey signal；When unmeasured to transparent pipeline 5
When liquid level, infrared receiving module 62 exports high level signal；When measuring the liquid level of transparent pipeline 5, infrared receiving module 62
Export low level signal；
Route selection module 63 is connected to infrared receiving module 62, for carrying out routing to infrared receiving module 62；Route selection module 63 is certainly
Routing is carried out to infrared receiving module 62 repeatedly on down, and exports the high level signal or low level consistent with institute's splitting signal
Signal；
Analog-to-digital conversion module 64 is connected to route selection module 63, for receiving high level signal or low electricity from route selection module 63
Ordinary mail number, the digital signal of output representative " 1 " when receiving high level signal are exported when receiving low level signal and are represented
The digital signal of " 0 "；
Signal processing module 65 is connected to analog-to-digital conversion module 64, with receive the digital signal from analog-to-digital conversion module 64；
When receiving digital signal, digital signal is compared with the threshold value pre-entered, and export liquid level signal.
Detection module 61 generates infrared survey signal, and infrared survey signal is through transparent pipeline 5 by infrared receiving module 62
It is received, when unmeasured liquid level to transparent pipeline 5, infrared receiving module 62 exports high level signal；It is transparent when measuring
When the liquid level of pipeline 5, infrared receiving module 62 exports low level signal；Route selection module 63 connects to infrared repeatedly from bottom to top simultaneously
It receives module 62 and carries out routing, and export the high level signal or low level signal consistent with institute's splitting signal；When analog-to-digital conversion mould
Output represents the digital signal of " 1 " when block 64 receives high level signal, when analog-to-digital conversion module 64 receives low level signal
When output represent " 0 " digital signal；Then when digital signal processing module receives digital signal, by digital signal in advance it is defeated
The threshold value entered is compared, and exports liquid level signal.
As shown in fig. 4, detection module 61 includes：
Start unit 611 is arranged in the outer surface of sealing plate 3, for exporting enabling signal；Optimization, start unit 611 is arranged
For button SW；
Output unit 612 is controlled, start unit 611 is connected to, for receiving enabling signal；Upon receiving the initiation signal, defeated
Go out to control signal；As shown in figure 4, control output unit 612 is set as 555 timers, the TRL pins and CON phases of 555 timers
Parallel connection, and connect with start unit 611 through DC converter, DC converter is powered to control output unit 612；555 timing
The THR pins and GND pins of device are grounded, and VCC pins and RES pins are connected with external power supply, DIS pins and VCC pins it
Between be connected between resistance R1, DIS pin and CON pins and be connected with resistance R2, resistance R1 is in parallel with resistance R2, and OUT pins are defeated
Go out pulse signal；
Signal transmitter unit 613 is connected to control output unit 612, for receiving control signal；When receiving control signal
When, export infrared signal；Optimization, as shown in figure 4, signal transmitter unit 613 is set as 128 infraluminescences being arranged in order
Diode DA1 ~ DAN, each infrared light-emitting diode are connected with a current-limiting resistance RA1 ~ RAN respectively, then whole in parallel again,
Hair by adjusting adjustable current sampling resistor RC1, can be adjusted by an adjustable current sampling resistor RC ground connection again after parallel connection
Penetrate intensity；
Adjustment adjustable current sampling resistor RC1 is first passed through, the signal emissive porwer of signal transmitter unit 613 is adjusted, by lower button
SW, DC converter are started to work, and are powered to control output unit 612 and signal transmitter unit 613, and export startup letter
Number；The output pulse signal when controlling output unit 612 and receiving enabling signal, makes the hair of 613 indirect of signal transmitter unit
Infrared signal is penetrated, to reduce power consumption.
As shown in figure 5, infrared receiving module 62 be set as 128 be arranged in order and reception diode DB1 parallel with one another ~
DBN is grounded after reception diode parallel connection by an external adjustable resistance RC2, while the reception diode after parallel connection and can
Resistance RC2 is adjusted to be in series respectively with the both ends of power supply；Power supply is powered to reception diode, and infrared receiving module 62 is made persistently to receive
The infrared signal of arrival self-detection module 61, avoids missing inspection；When unmeasured liquid level to transparent pipeline 5, infrared receiving module
62 output high level signals；When measuring the liquid level of transparent pipeline 5, infrared receiving module 62 exports low level signal.
As shown in figure 5, route selection module 63 includes the level-one simulation being connected with the reception diode of infrared receiving module 62
Switch and the two level analog switch being connected with level-one analog switch, optimization, level-one analog switch is set as model
1 analog switch, two level analog switch is selected to be set as the 16 of model CD74HC4067 and select 1 analog switch in the 8 of CD4051；Level-one mould
The pin of quasi- switch is connected with the output end of reception diode respectively, and two level analog switch is defeated with level-one analog switch respectively
Outlet is connected；Route selection module 63 carries out routing to infrared receiving module 62 repeatedly from bottom to top, and passes through two level analog switch
The output high level signal or low level signal consistent with institute's splitting signal.
As shown in fig. 6, analog-to-digital conversion module 64 is set as the analog-digital converter U2 of model ADS7818, analog-digital converter
The IN+ pins of U2 are connected with the output end of unilateral diode DC1, the IN- pins of analog-digital converter U2, GND pins and
CONV pins are grounded, and VREF pipe foot meridian capacitors C1 is circumscribed with power supply, to provide reference voltage, while the connect power supply of VREF pins
Both ends are grounded through capacitance C1；VCC pin external power supplys, CLK pins and DATA pins are connected with above-mentioned signal processing module 65；
Analog-to-digital conversion module 64 is connected to route selection module 63, when receiving high level signal or low level signal, to high level signal or
Low level signal carries out analog-to-digital conversion, and output represents the digital signal of " 1 " when receiving high level signal, low when receiving
Output represents the digital signal of " 0 " when level signal.
As shown in fig. 7, signal processing module 65 is set as the microcontroller U4 of model AT89C51, it is connected to analog-to-digital conversion
Module 64, for receiving the digital signal from analog-to-digital conversion module 6434；The P1.0 pins and analog-digital converter of microcontroller U4
The DATA pins of U2 are connected, and the RST pins of microcontroller U4 are connected with the CLK pins of analog-digital converter U2, microcontroller U4's
VCC pins are connected with external power supply, and the XTAL1 pins of microcontroller U3 connect through capacitance C2 and capacitance C3 respectively with XTAL2 pins
Ground, and be in parallel by crystal oscillator, the GND pins ground connection of microcontroller U3；When microcontroller U4 receives digital signal, work as microcontroller
When U3 receives digital signal, microcontroller U4 to digital signal by carry out samsara query mode from bottom to top successively in advance
The threshold value of input is compared, and when obtained result is less than threshold value, indicates that present bit is equipped with liquid, needs to select the roads n+1 letter
Number repetition detection process indicates that current location does not have liquid, is n- to obtain liquid level when obtained result is not less than threshold value
1 compares digital signal with the threshold value pre-entered, and exports liquid level signal and pass through pin P0.0 ~ P0.7 and pin P2.0
~ P2.7 exports the numerical sequence signal for representing liquid level position.
Further, as can be seen from figures 8 and 9, the side of mounting groove 66 is provided with and the one of pipe of infrared remote receiver 32
The energization copper sheet 661 that foot is connected, the mounting groove 66 are connected with pcb board 662, PCB away from a side slip of energization copper sheet 661
The spring jumping bean 663 for contradicting 32 another pin of infrared remote receiver is provided on plate 662, the both ends of pcb board 662 pass through
Winding displacement plate is connected with route selection module 63；Two pins of infrared remote receiver 32 are respectively engaged with energization copper coin 661 and pcb board
On 662, so as to replace the optical element of different volumes as needed.
The course of work：First transparent pipeline 5 is mounted on pedestal 1, further according to the infraluminescence for needing selection suitable volumes
Pipe, and by two pins of infrared light-emitting diode respectively in mounting groove 66 energization copper coin and pcb board 662 it is inconsistent, with
Sealing plate 3 is fixed on pedestal 1 afterwards, to make the measuring environment of transparent pipeline 5 be sealing state；
By liquid after three-way valve 36 enters transparent pipeline 5, start button SW is pressed, DC converter is started to work, and to
It controls output unit 612 and signal transmitter unit 613 is powered, and export enabling signal；It is opened when control output unit 612 receives
Output pulse signal when dynamic signal, infrared diode 31DA1 ~ DAN export infrared signal through measuring mouth indirect；Infrared survey is believed
Number transparent pipeline 5 of transmission is received by infrared receiving module 62；
When unmeasured liquid level to transparent pipeline 5, infrared receiving module 62 exports high level signal；When measuring transparent pipeline
When 5 liquid level, infrared receiving module 62 exports low level signal；Route selection module 63 is from bottom to top repeatedly to infrared receiving simultaneously
Block 62 carries out routing, and the high level signal or low level signal consistent with institute's splitting signal are exported by two level analog switch,
When analog-to-digital conversion module 64 receives high level signal or low level signal, mould is carried out to high level signal or low level signal
Number conversion, and when receiving high level signal, output represents the digital signal of " 1 ", and generation is exported when receiving low level signal
The digital signal of table " 0 "；
When microcontroller U4 receives digital signal, when microcontroller U4 receives digital signal, microcontroller U3 is to digital signal
It is compared successively with the threshold value pre-entered by progress samsara query mode from bottom to top, when obtained result is less than threshold
It when value, indicates that present bit is equipped with liquid, needs that the roads n+1 signal is selected to repeat detection process, when obtained result is not less than threshold value
When, it indicates that current location does not have liquid, is that n-1 compares digital signal with the threshold value pre-entered to obtain liquid level,
And export the numerical sequence signal that liquid level signal represents liquid level position by pin P0.0 ~ P0.7 and pin P2.0 ~ P2.7 outputs.
The present invention can accurately detect the level condition in transparent pipeline 5, carry by the way that multistage multiway analog switch is arranged
High measurement accuracy；By the way that original screen panel 33 is arranged, influence of the adjacent signals to measurement result can be reduced, measurement essence is improved
Degree；By the way that infrared diode 31 and infrared remote receiver 32 to be arranged correspondingly, infrared remote receiver 32 can be made to receive only
The signal of one infrared diode 31 reduces the influence of the signal of adjacent infrared diode 31, improves measurement accuracy.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, people in the art
Member can as needed make the present embodiment the modification of not creative contribution after reading this specification, but as long as at this
It is all protected by Patent Law in the right of invention.
Claims (10)
1. a kind of transparent pipeline liquid level emasuring device, including pedestal（1）, two pieces be fixed on pedestal vertically（1）Upper surface is mutually equal
Capable support column（2）, be parallel to support column（2）Sealing plate（3）, be arranged in support column（2）The sealing block on top（4）, setting
In two support columns（2）Between transparent pipeline（5）And for measuring transparent pipeline（5）The measuring system of liquid level（6）, institute
State sealing block（4）It is parallel to pedestal（1）, the transparent pipeline（5）It is parallel to support column（2）Length-wise axis, the branch
Dagger（2）With sealing block（4）And pedestal（1）Integration connection, the sealing plate（2）Fitted seal block（4）By transparent pipeline liquid
The top and side of level measuring arrangement are sealed；It is characterized in that：The measuring system（6）Including by several infrared diodes
（31）And infrared remote receiver（32）The detection module of composition（61）, be connected to detection module（61）For carrying out routing to signal
Route selection module（63）, be connected to route selection module（63）Analog-to-digital conversion module for converting analog signals into digital signal
（64）And it is connected to route selection module（63）Signal processing module for handling digital signal（65）；
The sealing plate（3）On offer strip mounting groove（66）, one of sealing plate（3）On mounting groove（66）For
Infrared remote receiver is installed（32）, another piece of sealing plate（3）On mounting groove（66）In installation infrared diode（31）；The installation
Slot（66）It is parallel to transparent pipeline（5）Length direction；
The mounting groove（66）Side be provided with and infrared remote receiver（32）The energization copper sheet that one of pin is connected
（661）, the mounting groove（66）Away from energization copper sheet（661）A side slip be connected with pcb board（662）, pcb board（662）On
It is provided with for contradicting infrared remote receiver（32）The spring jumping bean of another pin（663）, the pcb board（662）Both ends it is equal
Pass through winding displacement plate and route selection module（63）It is connected；
The route selection module（63）It include multigroup multistage multiway analog switch, and the access of the analog switches at different levels in each group
Number is different.
2. a kind of transparent pipeline liquid level emasuring device according to claim 1, it is characterized in that：The multiway analog switch is set
It is equipped with multiple, and multiple multiway analog switches at the same level connect the same higher leveled multiway analog switch.
3. a kind of transparent pipeline liquid level emasuring device according to claim 1, it is characterized in that：The infrared remote receiver（32）
With infrared diode（31）It corresponds and what is be mutually parallel is sequentially arranged in corresponding mounting groove（66）It is interior, and infrared diode
（31）Light just penetrate transparent pipeline（5）By infrared remote receiver（32）It is received.
4. a kind of transparent pipeline liquid level emasuring device according to claim 1, it is characterized in that：The sealing plate（3）And branch
Dagger（2）Between be equipped with original screen panel（33）, the original screen panel（33）It is equipped with several gratings for limiting receiving light path.
5. a kind of transparent pipeline liquid level emasuring device according to claim 1, it is characterized in that：The transparent pipeline（5）'s
Both ends respectively with pedestal（1）And sealing block（4）It is threadedly coupled.
6. a kind of transparent pipeline liquid level emasuring device according to claim 1, it is characterized in that：The original screen panel（33）With it is close
Sealing plate（3）Between be equipped with bolster, the bolster be used for cushion seal plate（3）To support column（2）The pressure of conduction.
7. a kind of transparent pipeline liquid level emasuring device according to claim 6, it is characterized in that：The bolster includes setting
In original screen panel（33）And sealing plate（3）Between rubber strip（37）, the rubber strip（37）It is parallel to transparent pipeline（5）Length
Direction, and rubber strip（37）Length and mounting groove（66）Length it is identical.
8. a kind of transparent pipeline liquid level emasuring device according to claim 1, it is characterized in that：The sealing plate（3）It is upper equal
Equipped with several short columns（34）, the short column（34）Towards transparent pipeline（5）, the bolster and original screen panel（33）Offer
Coordinate short column（34）The mounting hole of insertion（35）, the short column（34）With mounting hole（35）It matches for limiting original screen panel（33）
Relative to transparent pipeline（5）Position.
9. a kind of transparent pipeline liquid level emasuring device according to claim 1, it is characterized in that：The transparent pipeline（5）Extremely
It is provided with two less.
10. a kind of transparent pipeline liquid level emasuring device according to claim 9, it is characterized in that：The sealing block（4）Top
It is provided with three-way valve（36）, the three-way valve（36）It is connected to transparent pipeline（5）Top, outside liquid is through three-way valve
（36）Into transparent pipeline（5）It is interior.
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| CN201810829140.8A CN108759984B (en) | 2018-07-25 | 2018-07-25 | Transparent pipeline liquid level measurement device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810829140.8A CN108759984B (en) | 2018-07-25 | 2018-07-25 | Transparent pipeline liquid level measurement device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111426359A (en) * | 2020-03-23 | 2020-07-17 | 深圳市珈玛纳米技术有限公司 | Method and test system for accurately measuring instantaneous flow of high-speed high-temperature liquid-gas mixed fluid |
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| Publication number | Publication date |
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| CN108759984B (en) | 2023-12-26 |
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