CN110044897A - A kind of color identification module, titration end-point judgement system and its working method for volumetric method titration - Google Patents
A kind of color identification module, titration end-point judgement system and its working method for volumetric method titration Download PDFInfo
- Publication number
- CN110044897A CN110044897A CN201910425509.3A CN201910425509A CN110044897A CN 110044897 A CN110044897 A CN 110044897A CN 201910425509 A CN201910425509 A CN 201910425509A CN 110044897 A CN110044897 A CN 110044897A
- Authority
- CN
- China
- Prior art keywords
- value
- color
- titration
- identification module
- circuit substrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004448 titration Methods 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title claims abstract description 79
- 239000000758 substrate Substances 0.000 claims abstract description 43
- 239000007788 liquid Substances 0.000 claims abstract description 33
- 238000004891 communication Methods 0.000 claims abstract description 24
- 238000012360 testing method Methods 0.000 claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 238000005286 illumination Methods 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- 230000003760 hair shine Effects 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 18
- 230000008859 change Effects 0.000 abstract description 13
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 230000004069 differentiation Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 7
- 238000005457 optimization Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000008447 perception Effects 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 230000001568 sexual effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000004438 eyesight Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
- G01J3/50—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
- G01N21/79—Photometric titration
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Biochemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Plasma & Fusion (AREA)
- General Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Spectrometry And Color Measurement (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The present invention relates to field of laboratory instrument equipment, disclose a kind of color identification module, titration end-point judgement system and its working method for volumetric method titration.The color identification module includes transparent pipe, data acquisition circuit substrate, sealing sleeve, signal wire and communicating circuit substrate, wherein, it is disposed with color sensor on the data acquisition circuit substrate, is disposed with MCU unit and communication receiving/transmission unit on the communicating circuit substrate.Thus the data acquisition circuit substrate for being arranged in transparent tube end and color sensor be can use on the one hand to replace artificial eye, the case where accurate color and its color change for obtaining testing liquid, exclude unnecessary interference and artificial deviation, meet national standard, it on the other hand can be corresponding real-time color code by the real-time color numerical value conversion of testing liquid using communicating circuit substrate, and it can transmit away, and then can be integrated in automation equipment and use, realize the purpose that real-time titration end-point differentiation is carried out in titration process.
Description
Technical field
The invention belongs to field of laboratory instrument equipment, and in particular to it is a kind of for volumetric method titration color identification module,
Titration end-point judgement system and its working method.
Background technique
Volumetric method titration be according to titration solution color variation come judge a detection solution of titration end-point it is specific at
Divide the important method of content.There are two types of the end point judging methods of current capacities method titration: (1) by artificial eye mode, according to
Color change in titration process determines titration end-point, i.e., indicates titration end-point according to the color change of indicator, then mesh
The quasi- solution consumption volume of mark, Calculation results；(2) potentiometer measurement mode is used, is become according to the current potential in titration process
Change to determine titration end-point.But the former clearly can generate deviation with the difference of testing crew, and be unfavorable for integrating
In automation equipment；Although and the latter can carry out automation and integrate, and do not meet national standard, cannot act as formal
Examining report.
Summary of the invention
In order to solve the titration end-point in the presence of existing volumetric method titration process easily vary with each individual appearance differentiate deviation and
The integrated problem of automation that meet national standards can not be carried out, it is an object of that present invention to provide a kind of for volumetric method titration
Color identification module, titration end-point judgement system and its working method.
The technical scheme adopted by the invention is as follows:
It is a kind of for volumetric method titration color identification module, including transparent pipe, data acquisition circuit substrate, sealing sleeve,
Signal wire and communicating circuit substrate, wherein color sensor, the communicating circuit are disposed on the data acquisition circuit substrate
MCU unit and communication receiving/transmission unit are disposed on substrate；
The data acquisition circuit substrate is mounted on one end of the transparent pipe, and the sealing sleeve engagement sleeves are described transparent
The other end of pipe；
One end of the signal wire communicates to connect the color sensor, and the other end of the signal wire is sequentially passing through
The MCU unit is communicated to connect after stating transparent pipe and the sealing sleeve, the MCU unit also communicates to connect the communication receiving/transmission list
Member.
Optimization, the data acquisition circuit substrate is plugged on the end of the transparent pipe and the center with the transparent pipe
Line is parallel, and the slice plate body structure of the color sensor is respectively and in the data acquisition circuit substrate and the transparent pipe
Heart line is vertical.
It advanced optimizes, is provided with and receives on the outer surface of the data acquisition circuit substrate and the color sensor
Rice waterproof coating.
Optimization, further include for shine irradiation testing liquid white light emission source, wherein the white light emission source by
Control end communicates to connect the output end of the MCU unit.Specifically, the white light emission source includes LED incandescent lamp.
Specifically, the transparent pipe is quartz glass tube.
Specifically, the model TCS3200 of the color sensor.
Specifically, the signal wire uses silver-plated shielding line.
Specifically, the communication receiving/transmission unit uses synchronous/asynchronous serial received/transmitter.
Another technical solution of the present invention are as follows:
A kind of volumetric method titration judgement system is identified including host computer and the foregoing color for volumetric method titration
Module；
The host computer communication connection is located at the communication receiving/transmission unit in the color identification module.
Another technical solution of the present invention are as follows:
A kind of working method of foregoing volumetric method titration judgement system, host computer determine to titrate in accordance with the following steps
Terminal:
S101. after receiving the color value HEX code from color identification module, when obtaining current according to the color value HEX code
R value, G value and the B value at quarter, and be locally stored；
S102. it is directed to R value, G value and B value, it is bent according to one fitting of newest corresponding numerical generation at continuous N number of moment respectively
Line, and the matched curve is obtained in the tangent slope absolute value at current time, wherein N is the natural number between 3~7；
If S103. the current tangent slope absolute value of R value, G value and B value is all larger than the first preset threshold, make counter
From adding 1, the counter is otherwise made to be initialized as 0；
If S104. the current tangent slope absolute value of R value, G value and B value is all larger than working as the second preset threshold and counter
Preceding count value reaches third predetermined threshold value, then determines currently to have reached titration end-point, otherwise return to step S101, wherein
Second preset threshold is greater than first preset threshold.
Optimization, when color identification module includes white light emission source, MCU unit controls described white in accordance with the following steps
Photo-emission source:
S201. after receiving the R value from color sensor, G value, B value and illumination intensity value, according to the intensity of illumination
Value judgement it is current whether data overexposure, it is no to then follow the steps S203 if it is determined that data overexposure, thens follow the steps S202；
S202. the R value being currently received, G value, B value and illumination intensity value are deleted, and white light is automatically adjusted by pid algorithm
The luminous power of emission source, then returns to step S201；
S203. according to R value, G value and the B value being currently received, current corresponding color value HEX code is generated, step is then executed
S204；
S204. by communication receiving/transmission unit, current color value HEX code is uploaded to host computer.
The invention has the benefit that
(1) the invention provides one kind and can evade artificial deviation in volumetric method titration process, meet national mark
It is quasi- and be able to carry out the integrated color identification tender of automation, i.e., it on the one hand can use and be arranged in the data of transparent tube end and adopt
Current collection base board and color sensor replace artificial eye, the feelings of the accurate color for obtaining testing liquid and its color change
Condition excludes unnecessary interference and artificial deviation, meets national standard, on the other hand communicating circuit substrate can be utilized prepare liquid
The real-time color numerical value conversion of body is corresponding real-time color code, and be can transmit away, and then can be integrated in automation and set
Standby middle use, realizes the purpose that real-time titration end-point differentiation is carried out in titration process；
(2) the color identification module also has that easy for installation, anti-interference ability is good, communication function is friendly and structure is simple
The advantages that, it is convenient for practical application and popularization；
(3) judgement system is titrated by the volumetric method, can also known in volumetric method titration process according to from color
The recognition result of other module, automatic discrimination titration end-point are conducive to realize automation titration purpose；
(4) new titration end-point method of discrimination is carried out by titrating the upper pusher side in judgement system in the volumetric method,
Testing liquid color separation from quantitative change to qualitative change can be accurately found automatically, further accurately determine titration end-point；
(5) new pre- judgement and pretreatment side are carried out by the MCU cell side titrated in judgement system in the volumetric method
Method, the rgb value that can be obtained to perception are made whether true pre- judgement and pretreatment, and the luminous power of dialogue photo-emission source
Carry out automatic adjusument, it is ensured that the color recognition result perceived is all really and accurately, will not occur because of data overexposure
True sexual deviation can further ensure the color identification correctness of color identification module.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is that color identification module provided by the invention lays flat structural schematic diagram.
Fig. 2 is that the main body of color identification module provided by the invention tiltedly puts structural schematic diagram.
Fig. 3 is the electrical block diagram of color identification module provided by the invention.
Fig. 4 is the electrical block diagram of titration end-point judgement system provided by the invention.
Fig. 5 is the working method flow diagram of titration end-point judgement system provided by the invention.
Fig. 6 is that the titration end-point of titration end-point judgement system provided by the invention differentiates exemplary diagram.
In above-mentioned attached drawing: 1- transparent pipe；2- data acquisition circuit substrate；201- color sensor；3- sealing sleeve；4- signal
Line；5- communicating circuit substrate.
Specific embodiment
With reference to the accompanying drawing and specific embodiment come the present invention is further elaborated.It should be noted that for
Although the explanation of these way of example is to be used to help understand the present invention, but and do not constitute a limitation of the invention.It is public herein
The specific structure and function detail opened are only used for description example embodiments of the present invention.However, can with many alternative forms come
The present invention is embodied, and is not construed as limiting the invention in embodiment set forth herein.
It will be appreciated that though various units may be described herein using term first, second etc., but these units
It should not be limited by these terms.These terms are only used to distinguish a unit and another unit.Such as it can be by
Unit one is referred to as second unit, and similarly second unit can be referred to as first unit, shows without departing from of the invention
The range of example embodiment.
It should be appreciated that being only a kind of pass for describing affiliated partner to the term "and/or" being likely to occur in this article
Connection relationship indicates may exist three kinds of relationships, for example, A and/or B, can indicate: individualism A, individualism B are deposited simultaneously
In tri- kinds of situations of A and B；To the term "/and " being likely to occur in this article, it is to describe another affiliated partner relationship, indicates
There may be two kinds of relationships, for example, A/ and B, can indicate: two kinds of situations of individualism A, individualism A and B；In addition, for
The character "/" being likely to occur herein, typicallying represent forward-backward correlation object is a kind of "or" relationship.
If should be appreciated that, it can when unit being referred to as with another unit " connection ", " connected " or " coupling " herein
To be directly connected with another unit or couple or temporary location may exist.Relatively, if herein by unit be referred to as with
When another unit " being connected directly " or " direct-coupling ", indicate that temporary location is not present.Additionally, it should solve in a similar manner
Release for describing the relationship between unit other words (for example, " ... between " to " between directly existing ... ", " phase
It is adjacent " to " direct neighbor " etc.).
It should be appreciated that terms used herein are only used for description specific embodiment, it is not intended to limit example of the invention
Embodiment.If used herein, singular "a", "an" and "the" is intended to include plural form, unless context
Contrary is explicitly indicated.If being also understood that, term " includes ", " including ", "comprising" and/or " containing " are herein
When being used, specify stated feature, integer, step, operation, unit and/or component existence, and be not excluded for one
Or other multiple features, quantity, step, operation, unit, component and/or their combination existence or increase.
It should be appreciated that it will be further noted that the function action occurred may go out with attached drawing in some alternative embodiments
Existing sequence is different.Such as related function action is depended on, it can actually substantially be executed concurrently, or sometimes
Two figures continuously shown can be executed in reverse order.
It should be appreciated that providing specific details, in the following description in order to which example embodiment is understood completely.
However those of ordinary skill in the art are it is to be understood that implementation example embodiment without these specific details.
Such as system can be shown in block diagrams, to avoid with unnecessary details come so that example is unclear.In other instances, may be used
Or not show well-known process, structure and technology unnecessary details, to avoid making example embodiment unclear.
Embodiment one
As shown in Figures 1 to 3, the color identification module for volumetric method titration provided in this embodiment, including it is transparent
Pipe 1, data acquisition circuit substrate 2, sealing sleeve 3, signal wire 4 and communicating circuit substrate 5, wherein the data acquisition circuit base
It is disposed with color sensor 201 on plate 2, is disposed with MCU unit and communication receiving/transmission unit on the communicating circuit substrate 5；It is described
Data acquisition circuit substrate 2 is mounted on one end of the transparent pipe 1, and 3 engagement sleeves of sealing sleeve are in the another of the transparent pipe 1
End；One end of the signal wire 4 communicates to connect the color sensor 201, and the other end of the signal wire 4 is sequentially passing through
The MCU unit is communicated to connect after stating transparent pipe 1 and the sealing sleeve 3, the MCU unit also communicates to connect the communication receiving/transmission
Unit.
As shown in Figures 1 to 3, in the specific structure of the color identification module, the transparent pipe 1 is for carrying and protecting
The data acquisition circuit substrate 2 and the color sensor 201 keep liquid anti-so that they are when immersing testing liquid
Penetrating light, (testing liquid itself can not emit beam, and can only reflect them by reflection/filtered partial spectrum light
Liquid color) be able to enter the color sensor 201, and then excite and form corresponding voltage value, and pass through sensor
Internal analog-to-digital conversion, converts digital signal for voltage signal, finally obtains corresponding color data, such as RGB numerical value is (i.e.
A kind of color standard of industry is by the variation to red/Red, green/Green and tri- Color Channels of blue/Blue
And their mutual superpositions, to obtain miscellaneous color, RGB is the face for representing three channels of red, green, blue
Color, this standard almost include all colours that human eyesight can perceive, and are current with most wide one of color system)
Deng.In addition, the transparent pipe 1 is also used to that entire color identification module is enable to be conveniently mounted in other application equipment, tool
Body, the transparent pipe 1 can be, but not limited to as quartz glass tube.
The data acquisition circuit substrate 2 provides conventional confession for sensor for carrying the color sensor 201
Circuit and digital signal output interface circuit etc..The color sensor 201 be used for according to the reflection from testing liquid/
Light is filtered, perception obtains real-time color numerical value (such as RGB numerical value) corresponding with testing liquid；The color sensor 201
Concrete model can be, but not limited to as TCS3200.
The sealing sleeve 3 is used to close the end of the transparent pipe 1, to prevent foreign matter from entering in pipe and described in influencing
The normal work of data acquisition circuit substrate 2 and the color sensor 201.The signal wire 4 is removed for obtaining sensor
To color data be sent to except the communicating circuit substrate 5, it may also be used for import external operating voltage signal, so as to for
Sensor power supply；Optimization, the signal wire 4 can be, but not limited to using silver-plated shielding line, so can be to avoid operating voltage
Signal and the digital signal of output generate mutual electromagnetic interference.
5 one side of communicating circuit substrate is used for by the MCU unit, according to the public affairs of color data and color code
Know corresponding relationship, conventional conversion process is carried out to the real-time color numerical value from sensor, obtains corresponding and can be generalized
The real-time color code that machine is identified, for example, color value HEX code (color value HEX code and its with the table of comparisons of RGB color be it is existing it is known often
Know)；On the other hand for by the communication receiving/transmission unit, obtained real-time color code to be uploaded to external host computer,
To carry out real-time titration end-point differentiation；The transmitting-receiving mode of the processing mode of aforementioned MCU unit and aforementioned communication receiving/transmission unit
It can refer to prior art direct replacement to obtain.In the communicating circuit substrate 5, the MCU unit can be, but not limited to adopt
With PLC (Programmable Logic Controller) programmable logic device or chip microcontroller, the communication receiving/transmission
Unit can be, but not limited to using synchronous/asynchronous serial received/transmitter, i.e. USART (Universal Synchronous/
Asynchronous Receiver/Transmitter), it is a kind of full duplex universal synchronous/asynchronous serial transceiver module, this connects
Mouth is a kind of serial communication device of high flexible.
It is described from there through the specific structure of aforementioned color identification module, on the one hand can use and be arranged in transparent tube end
Data acquisition circuit substrate and color sensor replace artificial eye, the accurate color and its color for obtaining testing liquid
The case where variation, excludes unnecessary interference and artificial deviation, meets national standard, on the other hand can utilize communicating circuit substrate
It is corresponding real-time color code by the real-time color numerical value conversion of testing liquid, and can transmit away, and then can be integrated in
It is used in automation equipment, realizes the purpose for carrying out real-time titration end-point differentiation in titration process.In addition, the color identification
Module also has that easy for installation, anti-interference ability is good, communication function is friendly and advantages of simple structure and simple, convenient for practical application and pushes away
Extensively.
Optimization, the data acquisition circuit substrate 2 be plugged on the end of the transparent pipe 1 and with the transparent pipe 1
Centerline parallel, the slice plate body structure of the color sensor 201 respectively with the data acquisition circuit substrate 2 and described
The central axis of bright pipe 1.As shown in Fig. 2, being arranged by aforementioned structure, the data acquisition circuit substrate 2 and described can be made
Color sensor 201 is exposed in tube body end, and makes the slice plate body structure of the color sensor 201 and the insertion liquid of tube body
Body direction is vertical, so can ensure that reflection liquid/filtering light not will receive the screening of tube wall and circuit substrate in transmittance process
Gear, which weakens, to be influenced, and 201 interference-free of color sensor is enable accurately to perceive the real-time color numerical value of testing liquid.Into
One-step optimization, the electric conductivity of liquid will affect the normal work of circuit substrate and sensor in order to prevent, adopt in the data
Nano water-proof coating is provided on the outer surface of current collection base board 2 and the color sensor 201.Aforementioned nano water-proof coating
Material is that existing material will form the protective film of one layer of nanometer grade thickness when nano water-proof coating is coated on product surface,
So that dimensionally much larger than the contact products surface such as dust, rainwater or liquid of this structure when, can be very thin across one layer
Waterproof membrane, and it is spherical to form liquid under the surface tension effects of itself, guarantees that liquid " will not permeate " into circuit.
Optimization, further include for shine irradiation testing liquid white light emission source, wherein the white light emission source by
Control end communicates to connect the output end of the MCU unit.As shown in figure 3, being needed since testing liquid itself does not shine externally
A white light emission source is configured, so that white light (is generally needing white light emission source, to be measured after testing liquid when in use
Liquid and sensor are set gradually on direction of illumination), it can reflect or be obtained by filtration the liquid for being finally reflected testing liquid color
Body reflection light.In addition, since the controlled end in the white light emission source communicates to connect the output end of the MCU unit, Ke Yi
Starting light-emission operation is carried out under the control of the MCU unit or stops light-emission operation.Further specifically, the white light emission
Source can be, but not limited to include LED incandescent lamp.
To sum up, using the color identification module for being used for volumetric method titration provided by the present embodiment, there is following technology effect
Fruit:
(1) artificial deviation can be evaded in volumetric method titration process, meet national standard by present embodiments providing one kind
The color integrated with automation is able to carry out identifies tender, i.e., on the one hand can use the data acquisition for being arranged in transparent tube end
Circuit substrate and color sensor replace artificial eye, the feelings of the accurate color for obtaining testing liquid and its color change
Condition excludes unnecessary interference and artificial deviation, meets national standard, on the other hand communicating circuit substrate can be utilized prepare liquid
The real-time color numerical value conversion of body is corresponding real-time color code, and be can transmit away, and then can be integrated in automation and set
Standby middle use, realizes the purpose that real-time titration end-point differentiation is carried out in titration process；
(2) the color identification module also has that easy for installation, anti-interference ability is good, communication function is friendly and structure is simple
The advantages that, it is convenient for practical application and popularization.
Embodiment two
As shown in figures 4-6, it is whole to additionally provide a kind of titration based on color identification module described in embodiment one for the present embodiment
Point judgement system, the color identification module for volumetric method titration including host computer and as described in embodiment one；It is described upper
Machine communication connection is located at the communication receiving/transmission unit in the color identification module.
As shown in figure 4, the host computer is used to drip in volumetric method in the specific structure of the titration end-point judgement system
During fixed, according to the real-time color code from the color identification module, determine whether to titrate eventually by conventional methods
Point, such as color code comparison method --- judge whether current real-time color code is consistent with target color code, if unanimously
Then determine to reach titration end-point, otherwise allows to continue titration process.It is possible thereby in volumetric method titration process, according to next
From the recognition result of color identification module, automatic discrimination titration end-point is conducive to realize automation titration purpose.In addition, on aforementioned
The discriminating program of position machine conventional change can be carried out based on existing relative program or displacement obtains.
It advanced optimizes, for the working method of aforementioned titration end-point judgement system, as it can be seen in figures 5 and 6, the present embodiment
A kind of detailed operation method of host computer can also be provided, i.e. host computer can determine titration eventually by S101~S104 in accordance with the following steps
Point.
S101. after receiving the color value HEX code from color identification module, when obtaining current according to the color value HEX code
R value, G value and the B value at quarter, and be locally stored.
In the step S101, the corresponding relationship of the color value HEX code and R value, G value and B value is existing common knowledge,
Can table look-up acquisition；And by the way that mode is locally stored, the R value, G value and B value at multiple moment can recorde, such as the top figure of Fig. 6
It is shown.
S102. it is directed to R value, G value and B value, it is bent according to one fitting of newest corresponding numerical generation at continuous N number of moment respectively
Line, and the matched curve is obtained in the tangent slope absolute value at current time, wherein N is the natural number between 3~7.
In the step S102, the generation method of the matched curve can be obtained using existing fitting function；In addition,
N can be specially numerical value 5, i.e., determine a matched curve using 5 discrete values points.
If S103. the current tangent slope absolute value of R value, G value and B value is all larger than the first preset threshold, make counter
From adding 1, the counter is otherwise made to be initialized as 0.
In the step S103, first preset threshold can be obtained by rewritten a limited number of times known concentration titration experiments,
Such as numerical value 3.6 shown in Fig. 6 lower graph.
If S104. the current tangent slope absolute value of R value, G value and B value is all larger than working as the second preset threshold and counter
Preceding count value reaches third predetermined threshold value, then determines currently to have reached titration end-point, otherwise return to step S101, wherein
Second preset threshold is greater than first preset threshold.
In the step S104, second preset threshold can also be obtained by the known concentration titration experiments of limited times
It arrives, such as numerical value 5.5 shown in Fig. 6 lower graph；The third predetermined threshold value is preset natural number, such as 30 times.Thus
By abovementioned steps S101 to S104, testing liquid color separation from quantitative change to qualitative change can be accurately found automatically, into
Accurately determine titration end-point to one step.
It advanced optimizes, when color identification module includes white light emission source, differentiates system for aforementioned titration end-point
The working method of system, as shown in figure 5, the present embodiment can also provide a kind of detailed operation method of MCU unit, i.e. MCU unit
S201~S204 controls the white light emission source in accordance with the following steps.
S201. after receiving the R value from color sensor 201, G value, B value and illumination intensity value, according to the illumination
Intensity value judgement it is current whether data overexposure, it is no to then follow the steps S203 if it is determined that data overexposure, thens follow the steps S202.
In the step S201, can be judged according to the method compared with intensity of illumination preset threshold it is current whether data
Overexposure is even higher than intensity of illumination preset threshold, then determines data overexposure, otherwise determines not overexposure, executes step S203.
S202. the R value being currently received, G value, B value and illumination intensity value are deleted, and white light is automatically adjusted by pid algorithm
The luminous power of emission source, then returns to step S201.
In the step S202, due to having determined that data overexposure, R value, G value and B value at this time not can correctly reflect
Liquid color no longer needs to carry out conversion process and unofficial biography.The pid algorithm is typical subject that is existing and being directed to process control
-- a kind of method for optimally controlling of the control object of " first-order lag+purely retarded " and " second-order lag+purely retarded ", i.e., in process
In control, controlled in the ratio (P) of deviation, integral (I) and differential (D), it has principle simple, it is easy to accomplish, it is applicable in
Wide, control parameter is mutually indepedent, and parameter selectes the advantages that fairly simple.
S203. according to R value, G value and the B value being currently received, current corresponding color value HEX code is generated, step is then executed
S204。
S204. by communication receiving/transmission unit, current color value HEX code is uploaded to host computer.
From there through abovementioned steps S201 to S204, the rgb value that can be obtained to perception is made whether true pre- judgement
And pretreatment, and the luminous power of dialogue photo-emission source carries out automatic adjusument, it is ensured that the color recognition result perceived is all
It is really and accurately, true sexual deviation will not occur because of data overexposure, can further ensures that the color of color identification module is known
Other correctness.
To sum up, judgement system and its working method are titrated using volumetric method provided by the present embodiment, in embodiment one
On the basis of technical effect, also have the following technical effect that
It (1) can be in volumetric method titration process, according to the recognition result from color identification module, automatic discrimination titration
Terminal is conducive to realize automation titration purpose；
(2) by carrying out new titration end-point method of discrimination in upper pusher side, testing liquid can be accurately found automatically
Color separation from quantitative change to qualitative change further accurately determines titration end-point；
(3) by carrying out new pre- judgement and preprocess method in MCU cell side, can to the rgb value that perception obtains into
The whether true pre- judgement of row and pretreatment, and the luminous power of dialogue photo-emission source carries out automatic adjusument, it is ensured that it perceives
To color recognition result be all really and accurately, true sexual deviation will not occur because of data overexposure, can further ensure face
The color of color identification module identifies correctness.
Multiple embodiments described above are only schematical, if being related to unit as illustrated by the separation member,
It may or may not be physically separated；If being related to component shown as a unit, can be or
It can not be physical unit, it can it is in one place, or may be distributed over multiple network units.It can be according to reality
Some or all of the units may be selected to achieve the purpose of the solution of this embodiment for the needs on border.Those of ordinary skill in the art
Without paying creative labor, it can understand and implement.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features.And these modification or
Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Finally it should be noted that the present invention is not limited to above-mentioned optional embodiment, anyone is in enlightenment of the invention
Under can all obtain other various forms of products.Above-mentioned specific embodiment should not be understood the limit of pairs of protection scope of the present invention
System, protection scope of the present invention should be subject to be defined in claims, and specification can be used for explaining that right is wanted
Seek book.
Claims (10)
1. a kind of color identification module for volumetric method titration, it is characterised in that: including transparent pipe (1), data acquisition circuit
Substrate (2), sealing sleeve (3), signal wire (4) and communicating circuit substrate (5), wherein cloth on the data acquisition circuit substrate (2)
It is equipped with color sensor (201), is disposed with MCU unit and communication receiving/transmission unit on the communicating circuit substrate (5)；
The data acquisition circuit substrate (2) is mounted on one end of the transparent pipe (1), and sealing sleeve (3) engagement sleeves are in institute
State the other end of transparent pipe (1)；
One end of the signal wire (4) communicates to connect the color sensor (201), the other end of the signal wire (4) according to
Secondary to communicate to connect the MCU unit afterwards across the transparent pipe (1) and the sealing sleeve (3), the MCU unit also communicates to connect
The communication receiving/transmission unit.
2. a kind of color identification module for volumetric method titration as described in claim 1, it is characterised in that: the data are adopted
Current collection base board (2) is plugged on the end of the transparent pipe (1) and the centerline parallel with the transparent pipe (1), the color
The slice plate body structure of sensor (201) center line with the data acquisition circuit substrate (2) and the transparent pipe (1) respectively
Vertically.
3. a kind of color identification module for volumetric method titration as claimed in claim 2, it is characterised in that: in the data
Nano water-proof coating is provided on the outer surface of Acquisition Circuit substrate (2) and the color sensor (201).
4. a kind of color identification module for volumetric method titration as described in claim 1, it is characterised in that: further include being used for
It shines and irradiates the white light emission source of testing liquid, wherein the controlled end in the white light emission source communicates to connect the MCU unit
Output end.
5. a kind of color identification module for volumetric method titration as claimed in claim 4, it is characterised in that: the white light hair
The source of penetrating includes LED incandescent lamp.
6. a kind of color identification module for volumetric method titration as described in claim 1, it is characterised in that: the transparent pipe
It (1) is quartz glass tube.
7. a kind of color identification module for volumetric method titration as described in claim 1, it is characterised in that: the color passes
The model TCS3200 of sensor (201).
8. a kind of volumetric method titrates judgement system, it is characterised in that: including host computer and such as claim 1~7 any one institute
The color identification module for volumetric method titration stated；
The host computer communication connection is located at the communication receiving/transmission unit in the color identification module.
9. a kind of working method of volumetric method as claimed in claim 8 titration judgement system, which is characterized in that host computer according to
Following steps determine titration end-point:
S101. after receiving the color value HEX code from color identification module, the R at current time is obtained according to the color value HEX code
Value, G value and B value, and be locally stored；
S102. it is directed to R value, G value and B value, respectively newest one matched curve of corresponding numerical generation at basis continuous N number of moment,
And the matched curve is obtained in the tangent slope absolute value at current time, wherein N is the natural number between 3~7；
If S103. the current tangent slope absolute value of R value, G value and B value is all larger than the first preset threshold, add counter certainly
1, so that the counter is initialized as 0；
If S104. the current tangent slope absolute value of R value, G value and B value is all larger than the current meter of the second preset threshold and counter
Numerical value reaches third predetermined threshold value, then determines currently to have reached titration end-point, otherwise return to step S101, wherein described
Second preset threshold is greater than first preset threshold.
10. a kind of working method of volumetric method titration judgement system as claimed in claim 9, which is characterized in that when color is known
When other module includes white light emission source, MCU unit controls the white light emission source in accordance with the following steps:
S201. strong according to the illumination after receiving the R value from color sensor (201), G value, B value and illumination intensity value
Angle value judgement it is current whether data overexposure, it is no to then follow the steps S203 if it is determined that data overexposure, thens follow the steps S202；
S202. the R value being currently received, G value, B value and illumination intensity value are deleted, and white light emission is automatically adjusted by pid algorithm
The luminous power in source, then returns to step S201；
S203. according to R value, G value and the B value being currently received, current corresponding color value HEX code is generated, step S204 is then executed；
S204. by communication receiving/transmission unit, current color value HEX code is uploaded to host computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910425509.3A CN110044897A (en) | 2019-05-21 | 2019-05-21 | A kind of color identification module, titration end-point judgement system and its working method for volumetric method titration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910425509.3A CN110044897A (en) | 2019-05-21 | 2019-05-21 | A kind of color identification module, titration end-point judgement system and its working method for volumetric method titration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110044897A true CN110044897A (en) | 2019-07-23 |
Family
ID=67282991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910425509.3A Pending CN110044897A (en) | 2019-05-21 | 2019-05-21 | A kind of color identification module, titration end-point judgement system and its working method for volumetric method titration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110044897A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2705791Y (en) * | 2004-05-10 | 2005-06-22 | 中国储备粮管理总公司 | Grain fatty acid value detector |
| CN201034939Y (en) * | 2007-04-13 | 2008-03-12 | 杭州远方光电信息有限公司 | Fluorescent powder excited measurement mechanism |
| CN101655461A (en) * | 2009-10-20 | 2010-02-24 | 北京城市排水集团有限责任公司 | Method for determining ion content of cationic polyacrylamide by utilizing spectrophotometry |
| CN102262056A (en) * | 2011-04-19 | 2011-11-30 | 山东省科学院中日友好生物技术研究中心 | Complementary-color-based automatic photometric titration device for determining concentration of reducing sugar |
| KR20120119632A (en) * | 2011-04-22 | 2012-10-31 | (주)화백엔지니어링 | Plating solution control apparatus comprising rgb color sensor and ph sensor |
| US20130217134A1 (en) * | 2012-02-17 | 2013-08-22 | Toyota Motor Engineering & Manufacturing North America, Inc. | Methods and Systems for Monitoring Content of Coating Solutions Using Automated Titration Devices |
| CN206192968U (en) * | 2016-11-15 | 2017-05-24 | 陈娜 | Experiment operation appearance is titrated to acid -base neutralization |
| CN109342408A (en) * | 2018-10-08 | 2019-02-15 | 辽宁科技大学 | Method and system are intelligently titrated based on the industrial chemistry that image color information extracts |
-
2019
- 2019-05-21 CN CN201910425509.3A patent/CN110044897A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2705791Y (en) * | 2004-05-10 | 2005-06-22 | 中国储备粮管理总公司 | Grain fatty acid value detector |
| CN201034939Y (en) * | 2007-04-13 | 2008-03-12 | 杭州远方光电信息有限公司 | Fluorescent powder excited measurement mechanism |
| CN101655461A (en) * | 2009-10-20 | 2010-02-24 | 北京城市排水集团有限责任公司 | Method for determining ion content of cationic polyacrylamide by utilizing spectrophotometry |
| CN102262056A (en) * | 2011-04-19 | 2011-11-30 | 山东省科学院中日友好生物技术研究中心 | Complementary-color-based automatic photometric titration device for determining concentration of reducing sugar |
| KR20120119632A (en) * | 2011-04-22 | 2012-10-31 | (주)화백엔지니어링 | Plating solution control apparatus comprising rgb color sensor and ph sensor |
| US20130217134A1 (en) * | 2012-02-17 | 2013-08-22 | Toyota Motor Engineering & Manufacturing North America, Inc. | Methods and Systems for Monitoring Content of Coating Solutions Using Automated Titration Devices |
| CN206192968U (en) * | 2016-11-15 | 2017-05-24 | 陈娜 | Experiment operation appearance is titrated to acid -base neutralization |
| CN109342408A (en) * | 2018-10-08 | 2019-02-15 | 辽宁科技大学 | Method and system are intelligently titrated based on the industrial chemistry that image color information extracts |
Non-Patent Citations (4)
| Title |
|---|
| EDVALDO DA NOBREGA GAIAO等: "Digital image-based titrations", 《ANALYTICA CHIMICA ACTA》 * |
| LUCAS A. SIQUEIRA等: "Accurate automatic titration procedure for low sharpness and dichroism in end point detection using digital movies as detection technique", 《MICROCHEMICAL JOURNAL》 * |
| 李正美等: "虚拟仪器测控平台在细胞力学实验中的应用", 《中国力学学会学术大会2005》 * |
| 杨照金: "《工程光学计量测试技术概论》", 29 February 2016, 国防工业出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101821605A (en) | Optical product detection sensor | |
| CN110044896A (en) | A kind of full-automatic titrator and its working method for volumetric method titration | |
| CN104849025A (en) | LED lamp on-line screening method based on brightness and color temperature test | |
| CN110118397A (en) | Air cleaning unit | |
| CN102841060A (en) | On-line water quality quick detection system and detection method thereof | |
| CN110044897A (en) | A kind of color identification module, titration end-point judgement system and its working method for volumetric method titration | |
| CN104515535A (en) | Groove-type grating sensor | |
| CN101586984A (en) | Color sensor | |
| CN103411679B (en) | A kind of colourity optical detection system and light detection method | |
| CN209707360U (en) | Solution colour detection system | |
| CN106990283A (en) | A kind of lamp current on-line measuring device and method | |
| CN209231537U (en) | Material cup in level detecting apparatus | |
| CN210269626U (en) | Color recognition module for volumetric titration and titration endpoint discrimination system | |
| CN105954688B (en) | Lighting detecting device and illumination detection case | |
| CN207336376U (en) | A kind of new cigarette machine yew paper slice detecting device | |
| CN107192715B (en) | Novel cigarette machine tipping paper connects detects device | |
| CN105997040B (en) | A kind of heart rate sensor detection device and method | |
| CN217466659U (en) | High accuracy integral type color sensor | |
| CN205665386U (en) | Fault indicator's board turning ware and state recognition device of pilot lamp | |
| CN208297344U (en) | A kind of liquid-detecting | |
| CN102175688A (en) | Colour code detector | |
| CN209005275U (en) | A kind of grease automatic separating control device | |
| CN201984037U (en) | Titration end-point determination device for determining fatty acid value in grain | |
| CN104034699B (en) | A kind of automatic detection gathers the device of sample transmission rate | |
| CN109916829A (en) | Solution colour detection system and detection method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190723 |