CN110044851A - A kind of portable inexpensive turbidity detection device - Google Patents
A kind of portable inexpensive turbidity detection device Download PDFInfo
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- CN110044851A CN110044851A CN201910288986.XA CN201910288986A CN110044851A CN 110044851 A CN110044851 A CN 110044851A CN 201910288986 A CN201910288986 A CN 201910288986A CN 110044851 A CN110044851 A CN 110044851A
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- 238000001514 detection method Methods 0.000 title claims abstract description 39
- 230000003287 optical effect Effects 0.000 claims abstract description 141
- 238000012545 processing Methods 0.000 claims abstract description 37
- 230000003750 conditioning effect Effects 0.000 claims abstract description 34
- 239000012488 sample solution Substances 0.000 claims abstract description 30
- 238000004364 calculation method Methods 0.000 claims abstract description 6
- 239000000523 sample Substances 0.000 claims description 19
- 239000000243 solution Substances 0.000 claims description 7
- 239000012086 standard solution Substances 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000003993 interaction Effects 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 210000004556 brain Anatomy 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000003860 storage Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000005802 health problem Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
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- 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
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/59—Transmissivity
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The present invention provides a kind of portable inexpensive turbidity detection device, including detection module, temperature sensor and data processing module, detection module includes optical signal transmitter, first optical signal receiver, second optical signal receiver and optical signal conditioning circuit, two optical signal receivers are all connected with optical signal conditioning circuit, optical signal conditioning circuit and temperature sensor are all connected with data processing module, data processing module is to two optical signal ratio calculations, and according to two optical signals, the ratio and temperature data, which substitute into fitting function, makees support vector regression calculating, obtain the turbidity data of sample solution, the turbidity data of sample solution is transmitted to remote terminal by bluetooth module.Beneficial effects of the present invention: device volume is small, at low cost, simple to operate, circuit is stable, innovation uses support vector regression algorithm process, it can be achieved accurately to detect sample solution turbidity, solve the problems such as not portable, at high cost, cumbersome, accuracy is low.
Description
Technical field
The present invention relates to monitoring water environment technical fields, more particularly to a kind of portable inexpensive turbidity detection device.
Background technique
Water is necessary to our human survivals, and the fine or not existence health problem concerning us of water quality, turbidity is to measure
The most direct standard of water quality.Either domestic water or industrial production have certain turbidity standard, and therefore, Turbidity measurement is non-
Normal kind important.However all prevailing prices of some transmissometers on the market are expensive now, and have bulky, it is also necessary to configure
Other cleaning device, the water quality monitoring for a wide range of waters, or life are all to have biggish cost for
With it is not practical, so being existing for the demand of the turbidity transducer of this portable low cost.Existing turbidity instrument is read
Number is relatively more fixed, and some need installs specific software on computers, and installation process is complicated, applies also more troublesome.
In addition, the data processing method of existing frequently-used turbidity instrument: polynomial interpolation, precision are influenced to compare by sample point
It is larger, and the sample point selected is different, also can generate large effect to measurement result；Look-up table is very simple, but wants
Specific to every instrument, if more instruments is one for a table, it is likely to result in deviation；Piecewise linearity is will to measure song
Line is divided into multiple sections, broken line slope between points is calculated by the point of calibration, to obtain each section of calculation formula.When
Which when measurement data, first determine whether section the calculation formula of this section to be recycled to find out turbidity value in, if standard point generates mistake
Difference also just influences a certain section near it, but can generate certain error in particular range for accuracy, so that whole
Body bigger error.
Summary of the invention
In view of this, the embodiment provides a kind of portable inexpensive turbidity detection devices.
The embodiment of the present invention provides a kind of portable inexpensive turbidity detection device, including detection module, temperature sensing
Device and data processing module, the detection module include optical signal transmitter, the first optical signal receiver, the reception of the second optical signal
Device and optical signal conditioning circuit, the optical signal transmitter are set to sample ware side, and the sample ware is for storing to sample
This solution, first optical signal receiver are set to another opposite side of the sample ware, second optical signal receiver
It is set on the vertical line of first optical signal receiver and the optical signal transmitter line, first optical signal receiver
The optical signal conditioning circuit, the optical signal conditioning circuit and the temperature are separately connected with second optical signal receiver
Sensor is all connected with the data processing module, and for emitting optical signal, first optical signal connects the optical signal transmitter
Device and second optical signal receiver are received for receiving the optical signal across the sample solution and being transmitted to the light
Signal conditioning circuit, the optical signal conditioning circuit is for improving two optical signals received and being transmitted to the data processing mould
Block, the temperature sensor for monitoring the sample solution temperature and transmitting the temperature data to the data processing module,
The data processing module is substituted into the two optical signal ratio calculations, and by two optical signals, the ratio and the temperature data
Make support vector regression calculating in fitting function, obtains the turbidity data of the sample solution.
Further, the data processing module is main control chip STM32F103RCT6.
Further, the portable inexpensive turbidity detection device of described one kind includes power module, and the power module is
The band chargeable 12V lithium battery of USB interface, the optical signal conditioning circuit, the data processing module and the bluetooth module
It is all connected with the power module.
Further, the optical signal transmitter is the near infrared light emitting diode of a 850nm, the first light letter
Number receiver and second optical signal receiver are silicon photocell.
Further, the temperature sensor is DS18B20 digital temperature sensor.
Further, including bluetooth module, the bluetooth module are principal and subordinate's one bluetooth serial ports module, the bluetooth module
The data processing module is connected, is used for transmission the turbidity data of the sample solution to remote terminal.
Further, the bluetooth module and the remote terminal are wirelessly connected, and to described in remote terminal transmission
Turbidity data, the remote terminal are mobile phone or computer, and the remote terminal is equipped with human-computer interaction APP, and the APP is for controlling
The bluetooth module and the turbidity data for showing the sample solution.
Further, the fitting function is that the data processing module is believed according to two light when detecting international standard solution
Number, the ratio and the temperature data be calculated as support vector regression.
The technical solution that the embodiment of the present invention provides has the benefit that a kind of portable low cost of the invention is turbid
Detection device is spent, in test sample solution turbidity, optical signal transmitter emits optical signal and penetrates sample solution, the first optical signal
Receiver and the second optical signal receiver receive the optical signal and light letter that optical signal transmitter line transmission crosses sample solution respectively
The optical signal of sample solution is penetrated in number transmitter vertical direction, the first optical signal receiver and the second optical signal receiver will
The optical signal transmission received to optical signal conditioning circuit is improved, and optical signal conditioning circuit passes the optical signal after conditioning
It transports to data processing module, while temperature sensor test sample solution temperature and temperature data is transferred to data processing mould
Block, data processing module receive the optical signal information that optical signal conditioning circuit passes over and carry out ratio proccessing, and by two light
Signal, the ratio and the temperature data, which substitute into fitting function, makees support vector regression (SVR) calculating, and it is molten to obtain the sample
The turbidity data of liquid, whole device is small in size, convenient to use, circuit is stable, detection data is accurate, solves existing
The problems such as turbidity detection device is not portable, at high cost, accuracy is low.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of portable inexpensive turbidity detection device of the invention.
Fig. 2 is a kind of working principle diagram of portable inexpensive turbidity detection device of the invention.
Fig. 3 is a kind of data fitted figure of portable inexpensive turbidity detection device of the invention.
In figure: 1- detection module, 2- sample ware, 3- optical signal transmitter, the first signal receiver of 4-, 5- second signal connect
Receive device, 6- temperature sensor, 7- data processing module, 8- bluetooth module, 9- sample solution, 10- optical signal conditioning circuit, 11-
Power module, 12-SD storage card, 13- remote terminal.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is further described.
Fig. 1 and Fig. 2 are please referred to, the embodiment provides a kind of portable inexpensive turbidity detection devices, including
Detection module 1, temperature sensor 6 and data processing module 7.
The detection module 1 includes optical signal transmitter 3, the first optical signal receiver 4,5 and of the second optical signal receiver
Optical signal conditioning circuit 10, the optical signal transmitter 3 pass through the sample solution for emitting optical signal, the optical signal,
The optical signal transmitter 3 is set to 2 side of sample ware, and the sample ware 2 is for storing sample to be examined solution 9, and described first
Optical signal receiver is set to another opposite side of the sample ware 2, and second optical signal receiver is set to described first
On the vertical line of optical signal receiver and the optical signal transmitter line, first optical signal receiver 4 and second light
Signal receiver 5 is for receiving the optical signal across the sample solution 9 and being transmitted to the optical signal conditioning circuit, institute
Stating the first optical signal receiver 4 and second optical signal receiver 5 should be able to avoid receiving non-3 institute of the optical signal transmitter
The external interference optical signal of transmitting, optical signal transmitter 3 described in the present embodiment are the near infrared light light-emitting diodes of a 850nm
Pipe, first optical signal receiver 4 and second optical signal receiver 5 are silicon photocell.
First optical signal receiver 4 and second optical signal receiver 5 are separately connected optical signal conditioning circuit 10,
The optical signal conditioning circuit 10, the SD storage card 12 and the temperature sensor 6 are all connected with the data processing module 7,
Temperature sensor 6 described in the present embodiment is DS18B20 digital temperature sensor, and the data processing module 7 is main control chip
STM32F103RCT6, the optical signal conditioning circuit 10 is for improving two optical signals received and being transmitted at the data
Module 7 is managed, the temperature sensor 6 is for detecting 9 temperature of sample solution and transmitting at the temperature data to the data
Module 7 is managed, the data processing module 7 is to the two optical signal ratio calculations, and by two optical signals, the ratio and the temperature
Data, which substitute into the fitting function, makees support vector regression (SVR) calculating, obtains the turbidity data of molten 9 liquid of the sample, institute
The turbidity data of sample solution 9 described in 12 real-time storage of SD storage card is stated, the support vector regression (SVR) calculates low general
Change error, be easy to explain, computation complexity is lower, can solve higher-dimension problem, utilizes first optical signal in the present embodiment
Receiver 4 and second optical signal receiver 5 receive the optical signal that optical signal transmitter line transmission crosses sample solution respectively
The basic data calculated with the optical signal for penetrating sample solution 9 in optical signal transmitter vertical direction as support vector regression,
And temperature-compensating adjustment is carried out, influence of the environment temperature to detection device has been reduced, to improve anti-interference ability.
The portable inexpensive turbidity detection device of described one kind includes power module 11, and the power module 11 is band USB
The chargeable 12V lithium battery of interface, the optical signal conditioning circuit 10, the data processing module 7 and the bluetooth module 8 are equal
The power module 11 is connected, and is powered by the power module 11.
The data processing module 7 connects bluetooth module 8, and the bluetooth module 8 is principal and subordinate's one bluetooth serial ports module, institute
It states bluetooth module 8 and transmits the turbidity data of the sample solution 9 to remote terminal 13, the remote terminal 13 is mobile phone or electricity
Brain, the remote terminal 13 are equipped with human-computer interaction APP, and the APP is for controlling the bluetooth module 8 and showing that the sample is molten
The turbidity data of liquid 9, the APP is used for human-computer interaction, easy to operate, and indoor and field can be used.
Two optical signals, the ratio when fitting function is the data processing module according to detection international standard solution
It is calculated with the temperature data as support vector regression.
The specific work process of the portable inexpensive turbidity detection device of this one kind is that the optical signal transmitter 3 emits
For optical signal to the sample to be examined solution 9, first optical signal receiver 4 receives 3 line transmission of optical signal transmitter
The optical signal of sample solution 9 is crossed, second optical signal receiver 5 receives to be penetrated in 3 vertical direction of optical signal transmitter
The optical signal of sample solution 9, first optical signal receiver 4 and second optical signal receiver 5 will be received
Optical signal information is transmitted to the optical signal conditioning circuit 10 and is improved, and the optical signal conditioning circuit 10 is by the light after conditioning
Signal message is transmitted to the data processing module 7, while the temperature sensor 6 detects 9 temperature of sample solution and incites somebody to action
Temperature data is transferred to the data processing module 7, and the data processing module 7 receives the optical signal conditioning circuit 10 and transmits
The optical signal information to come over carries out ratio proccessing, and makees supporting vector according to two optical signals, the ratio and the temperature data and return
Return (SVR) to calculate, obtains the turbidity data of the sample solution 9.
With reference to attached drawing 3, initial data is the known turbidity data of international standard solution, and regression data is to be examined using the device
The turbidity data that international standard solution is obtained by support vector regression (SVR) algorithm is surveyed, specifically, the implementation case is to use institute
Optical signal when 4 receiver of the first optical signal and second optical signal receiver 5 reception detection international standard solution is stated, and will
The optical signal transmission is improved to the optical signal conditioning circuit 10, and the optical signal conditioning circuit 10 is by the light after conditioning
Signal message is transmitted to the data processing module 7, while the temperature sensor 6 detects the international standard solution temperature simultaneously
Temperature data is transferred to the data processing module 7, the data processing module 7 receives the optical signal conditioning circuit 10 and passes
The optical signal information passed carries out ratio proccessing, and makees supporting vector according to two optical signals, the ratio and the temperature data
It returns (SVR) to calculate, obtains fitting function, in the present embodiment, the regression data and the initial data are described quasi-
It is fine to close Function Fitting effect, shows that detection device detection turbidity error is small accurate and reliable.
Herein, the nouns of locality such as related front, rear, top, and bottom are to be located in figure with components in attached drawing and zero
Part mutual position defines, only for the purpose of expressing the technical solution clearly and conveniently.It should be appreciated that the noun of locality
Use should not limit the claimed range of the application.
In the absence of conflict, the feature in embodiment and embodiment herein-above set forth can be combined with each other.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of portable inexpensive turbidity detection device, it is characterised in that: at detection module, temperature sensor and data
Module is managed, the detection module includes optical signal transmitter, the first optical signal receiver, the second optical signal receiver and optical signal
Conditioning circuit, the optical signal transmitter are set to sample ware side, and the sample ware is described for storing sample to be examined solution
First optical signal receiver is set to another opposite side of the sample ware, and second optical signal receiver is set to described
On the vertical line of one optical signal receiver and the optical signal transmitter line, first optical signal receiver and second light
Signal receiver is separately connected the optical signal conditioning circuit, and the optical signal conditioning circuit and the temperature sensor are all connected with
The data processing module, the optical signal transmitter is for emitting optical signal, first optical signal receiver and described the
Two optical signal receivers are used to receive the optical signal across the sample solution and are transmitted to the optical signal conditioning circuit,
For improving two optical signals received and being transmitted to the data processing module, the temperature passes the optical signal conditioning circuit
Sensor is for monitoring the sample solution temperature and transmitting the temperature data to the data processing module, the data processing mould
Two optical signals, the ratio and the temperature data are substituted into fitting function and are propped up to the two optical signal ratio calculations by block
Vector regression calculating is held, the turbidity data of the sample solution is obtained.
2. a kind of portable inexpensive turbidity detection device as described in claim 1, it is characterised in that: the data processing mould
Block is main control chip STM32F103RCT6.
3. portable inexpensive turbidity detection device as described in claim 1 a kind of, it is characterised in that: including power module,
The power module is the band chargeable 12V lithium battery of USB interface, the optical signal conditioning circuit, the data processing module
The power module is all connected with the bluetooth module.
4. a kind of portable inexpensive turbidity detection device as described in claim 1, it is characterised in that: the optical signal launch
Device is the near infrared light emitting diode of 850nm, and first optical signal receiver and second optical signal receiver are
Silicon photocell.
5. a kind of portable inexpensive turbidity detection device as described in claim 1, it is characterised in that: the temperature sensor
It is DS18B20 digital temperature sensor.
6. portable inexpensive turbidity detection device as described in claim 1 a kind of, it is characterised in that: including bluetooth module,
The bluetooth module is principal and subordinate's one bluetooth serial ports module, and the bluetooth module connects the data processing module, is used for transmission
The turbidity data of the sample solution is to remote terminal.
7. portable inexpensive turbidity detection device as claimed in claim 6 a kind of, it is characterised in that: the bluetooth module with
The remote terminal is wirelessly connected, and transmits the turbidity data to the remote terminal, and the remote terminal is mobile phone or electricity
Brain, the remote terminal are equipped with human-computer interaction APP, and the APP is for controlling the bluetooth module and showing the sample solution
Turbidity data.
8. portable inexpensive turbidity detection device as described in claim 1 a kind of, it is characterised in that: the fitting function is
The data processing module according to detection international standard solution when two optical signals, the ratio and the temperature data support to
Amount is returned and is calculated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910288986.XA CN110044851A (en) | 2019-04-11 | 2019-04-11 | A kind of portable inexpensive turbidity detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910288986.XA CN110044851A (en) | 2019-04-11 | 2019-04-11 | A kind of portable inexpensive turbidity detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110044851A true CN110044851A (en) | 2019-07-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910288986.XA Pending CN110044851A (en) | 2019-04-11 | 2019-04-11 | A kind of portable inexpensive turbidity detection device |
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| Country | Link |
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| CN (1) | CN110044851A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116088382A (en) * | 2023-01-14 | 2023-05-09 | 中国地质大学（武汉） | Device capable of automatically adjusting and stabilizing turbid liquid in output concentration range |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596990A (en) * | 2015-01-23 | 2015-05-06 | 中国农业大学 | Two-channel optical fiber method and sensor for measuring turbidity |
-
2019
- 2019-04-11 CN CN201910288986.XA patent/CN110044851A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596990A (en) * | 2015-01-23 | 2015-05-06 | 中国农业大学 | Two-channel optical fiber method and sensor for measuring turbidity |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116088382A (en) * | 2023-01-14 | 2023-05-09 | 中国地质大学（武汉） | Device capable of automatically adjusting and stabilizing turbid liquid in output concentration range |
| CN116088382B (en) * | 2023-01-14 | 2024-05-10 | 中国地质大学（武汉） | Device capable of automatically adjusting and stabilizing turbid liquid in output concentration range |
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Application publication date: 20190723 |