CN109725122A - A handheld water quality testing device - Google Patents
A handheld water quality testing device Download PDFInfo
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- CN109725122A CN109725122A CN201910160111.1A CN201910160111A CN109725122A CN 109725122 A CN109725122 A CN 109725122A CN 201910160111 A CN201910160111 A CN 201910160111A CN 109725122 A CN109725122 A CN 109725122A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 65
- 238000012372 quality testing Methods 0.000 title claims 2
- 238000001514 detection method Methods 0.000 claims abstract description 51
- 238000005070 sampling Methods 0.000 claims description 35
- 238000012545 processing Methods 0.000 claims description 31
- 230000003321 amplification Effects 0.000 claims description 25
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 25
- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical compound O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 claims description 24
- 238000004891 communication Methods 0.000 claims description 23
- 239000004973 liquid crystal related substance Substances 0.000 claims description 11
- 238000007667 floating Methods 0.000 claims description 10
- 238000012360 testing method Methods 0.000 abstract description 14
- 230000005540 biological transmission Effects 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 17
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- 238000007689 inspection Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000012546 transfer Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000001139 pH measurement Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000011897 real-time detection Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 239000012491 analyte Substances 0.000 description 1
- 238000004164 analytical calibration Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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- 238000012544 monitoring process Methods 0.000 description 1
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- 229910052760 oxygen Inorganic materials 0.000 description 1
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- 238000007789 sealing Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
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Abstract
The present invention relates to a kind of handheld water quality detecting device, including handheld terminal and water quality detection end, the handheld terminal is electrically connected with water quality detection end by CAN module;The handheld water quality detecting device, solve the problems, such as that existing water quality detection instrument parameter is single, multinomial water quality parameter can be detected simultaneously, and data transmission is reliable and stable, detection interference is removed from environment and structure various aspects, testing result is reliable and stable, testing result can save or real-time transmission.
Description
Technical field
The invention belongs to water quality inspection technique fields, and in particular to a kind of handheld water quality detecting device.
Background technique
Water quality indicates the physics (coloration, turbidity, smell etc.), chemical (inorganic matter and content of organics) and biology of water body
The characteristic of (bacterium, microorganism, planktonic organism etc.) and its situation of composition, different water have corresponding water quality parameter and water quality mark
Standard, such as Drinking Water, industrial water standard.As dynamics of the country to water quality protection is increasing, put into effect at present
The long system in corresponding river implements special messenger's responsibility system to water quality of river, therefore being badly in need of one kind can be comprehensive to parameters of river water quality realization
Close the device of detection.
Water quality inspection technique mainly includes laboratory testing and instrument detection, and laboratory testing is directed to greatly chemical method,
It is too high for the requirement of place, operator and experimental situation, it cannot achieve large-scale promotion, realize the dedicated of water quality comprehensive detection
Instrument cost is high, needs special messenger to operate, also cannot achieve the real-time detection of water quality parameters, thus also cannot achieve and answer on a large scale
With.It is more mature to the detection of single water quality parameter in domestic equipment at present, as dissolved oxygen (DO), PH, smell, turbidity and color
The water quality parameters such as degree have a series of relevant instruments, and some related sensors and technical parameter are also fairly perfect, by existing
Technology realizes that a kind of measuring system of parameter is not difficult matter yet.
But the detecting instrument of water quality parameter is that single parameter detects mostly at present, inefficiency, to water in home equipment
Matter parametric synthesis detection portable instrumentation mostly rest on theory stage, temporarily can not commercialization, relevant departments implement
The instrument of water quality monitoring relies primarily on import equipment, with high costs, and after-sales service, technical support etc. have it is many not
Just.Based on this, the present invention proposes a kind of handheld water quality detecting device, it can be achieved that multi-parameter water-quality real-time detection.
Summary of the invention
Present invention aim to address detection parameters existing for the detecting instrument of existing water quality parameter are single, detection efficiency
It is low, water quality detection problem at high cost.
For this purpose, the present invention provides a kind of handheld water quality detecting device, including handheld terminal and water quality detection end, it is described
Handheld terminal is electrically connected with water quality detection end by CAN module.
The handheld terminal includes processor, and floating material detection module, display module, smell sensor module, the first AD are adopted
Egf block, the first CAN communication module, battery, the first DCDC power module, memory module, WI-FI module, is taken the photograph Keysheet module
As head, liquid crystal display;The camera is electrically connected by floating material detection module with processor;The liquid crystal display passes through
Display module is electrically connected with processor;The smell sensor module is electrically connected by the first AD sampling module with processor;Institute
Keysheet module, memory module, WI-FI module, the first DCDC power module, the first CAN communication module is stated to be electrically connected with processor
It connects;The battery is electrically connected with the first power module.
The model STM32F767 of the processor.
The water quality detection end includes controller, the 2nd DCDC power module, the second CAN communication module, DO sensor, PH
Sensor, temperature sensor, chromaticity transducer, turbidity transducer, DO signal processing circuit, PH signal enhanced processing electricity
Road, temperature signal amplification treatment circuit, carrier chrominance signal amplification treatment circuit, turbid ity signal amplification treatment circuit, the 2nd AD sampling
Module;The DO sensor is electrically connected by DO signal processing circuit with the 2nd AD sampling module;The PH sensor is logical
PH signal processing circuit is crossed to be electrically connected with the 2nd AD sampling module;The temperature sensor passes through temperature signal enhanced processing
Circuit is electrically connected with the 2nd AD sampling module;The chromaticity transducer is sampled by carrier chrominance signal amplification treatment circuit and the 2nd AD
Module electrical connection;The turbidity transducer is electrically connected by turbid ity signal amplification treatment circuit with the 2nd AD sampling module;It is described
2nd DCDC power module, the second CAN communication module, the 2nd AD sampling module are electrically connected with the controller.
The model STM32F334 of the controller.
First CAN communication module is electrically connected with the second CAN communication module by conducting wire.
The battery is electrically connected with the 2nd DCDC power module by conducting wire.
Beneficial effects of the present invention: this handheld water quality detecting device provided by the invention solves existing water quality inspection
Survey the single problem of instrument parameter, can detect multinomial water quality parameter simultaneously, and data transmission it is reliable and stable, from environment and knot
Structure various aspects removal detection interference, testing result is reliable and stable, testing result can save or real-time transmission.
The present invention is described in further details below with reference to attached drawing.
Detailed description of the invention
Fig. 1 is overall structure figure of the invention.
Fig. 2 is the circuit diagram of processor module.
Fig. 3 is the circuit diagram of the first CAN communication module.
Fig. 4 is the circuit diagram of liquid crystal display module.
Fig. 5 is the circuit diagram of WI-FI module.
Fig. 6 is the circuit diagram of camera module.
Fig. 7 is the circuit diagram of memory module module.
Fig. 8 is the circuit diagram of controller module.
Fig. 9 is the circuit diagram of the second CAN communication module.
Figure 10 is the circuit diagram of temperature signal enhanced processing.
Figure 11 is the circuit diagram of PH signal enhanced processing.
Figure 12 is the circuit diagram of DO signal enhanced processing.
Figure 13 is the circuit diagram of turbid ity signal enhanced processing.
Figure 14 is the circuit diagram of carrier chrominance signal enhanced processing.
Figure 15 is DCDC power circuit diagram.
Figure 16 is 5V output circuit figure.
Figure 17 is 3.3V output circuit figure.
In figure: 1, processor;2, controller;3, WI-FI module;4, floating material detection module;5, camera;6, mould is shown
Block;7, liquid crystal display;8, the first AD sampling module;9, smell sensor module;10, Keysheet module;11, the first CAN communication
Module;12, the first DCDC power module;13, battery;14, cable connector;15, underwater electrical connector;16, cable;
17, the 2nd DCDC power module;18, the second CAN communication module;19, the 2nd AD sampling module;20, DO signal enhanced processing electricity
Road;21, PH signal processing circuit;22, temperature signal amplification treatment circuit;23, carrier chrominance signal amplification treatment circuit;24,
Turbid ity signal amplification treatment circuit;25, DO sensor;26, PH sensor;27, temperature sensor;28, chromaticity transducer;29,
Turbidity transducer;30, host computer;31, cable protective sleeve;32, memory module.
Specific embodiment
Reach the technical means and efficacy that predetermined purpose is taken for the present invention is further explained, below in conjunction with attached drawing and reality
Example is applied to a specific embodiment of the invention, structure feature and its effect, detailed description are as follows.
Embodiment 1
Single in order to solve detection parameters existing for the detecting instrument of existing water quality parameter, detection efficiency is low, water quality inspection
Survey problem at high cost.A kind of handheld water quality detecting device as shown in FIG. 1 to FIG. 7 is present embodiments provided, including hand-held
End and water quality detection end, the handheld terminal are electrically connected with water quality detection end by CAN module;The handheld water quality detection
Device solves the problems, such as that existing water quality detection instrument parameter is single, can detect multinomial water quality parameter simultaneously, and data pass
It is defeated it is reliable and stable, from environment and structure various aspects removal detection interference, testing result is reliable and stable, testing result can save or
Person's real-time transmission;Can detect simultaneously seven water quality parameters, data transmission it is reliable and stable, from environment and structure various aspects removal inspection
Survey interference, testing result is reliable and stable, testing result can save or real-time transmission;And the device stability is good, nothing
It needs special messenger's operation, without sampling of water quality, is suitable for the water quality detections on the spot such as rivers and lakes.
As shown in Figure 2 to 7, the handheld terminal includes processor 1, and floating material detection module 4, display module 6, smell pass
Sensor module 9, the first AD sampling module 8, Keysheet module 10, the first CAN communication module 11, battery 13, the first DCDC power supply
Module 12, memory module 32, WI-FI module 3, camera 5, liquid crystal display 7;The camera 5 passes through floating analyte detection mould
Block 4 is electrically connected with processor 1;The liquid crystal display 7 is electrically connected by display module 6 with processor 1;The smell sensor
Module 9 is electrically connected by the first AD sampling module 8 with processor 1;The Keysheet module 10, memory module 32, WI-FI module 3,
First DCDC power module 12, the first CAN communication module 11 are electrically connected with processor 1;The battery 13 and the first power supply
Module 12 is electrically connected, and provides electric energy for the first power module 12;Input voltage is converted into 3V, 5V by the first DCDC power module 12
Each chip and amplifier are supplied to after the operating voltages such as -5V;Memory module 32 is used to store the data information and picture of acquisition
Information;WI-FI module 3 is used to will test data and image information is transmitted to host computer 30.
The model STM32F767 of the processor 1, is illustrated in figure 2 the peripheral circuit diagram of processor 1.
As shown in Fig. 8~14, the water quality detection end includes controller 2, the 2nd DCDC power module 17, the 2nd CAN logical
Believe module 18, DO sensor 25, PH sensor 26, temperature sensor 27, chromaticity transducer 28, turbidity transducer 29, DO signal
Amplification treatment circuit 20, PH signal processing circuit 21, temperature signal amplification treatment circuit 22, carrier chrominance signal enhanced processing electricity
Road 23, turbid ity signal amplification treatment circuit 24, the 2nd AD sampling module 19;The DO sensor 25 passes through DO signal enhanced processing
Circuit 20 is electrically connected with the 2nd AD sampling module 19;The PH sensor 26 passes through PH signal processing circuit 21 and the 2nd AD
Sampling module 19 is electrically connected;The temperature sensor 27 passes through temperature signal amplification treatment circuit 22 and the 2nd AD sampling module 19
Electrical connection;The chromaticity transducer 28 is electrically connected by carrier chrominance signal amplification treatment circuit 23 with the 2nd AD sampling module 19;Institute
Turbidity transducer 29 is stated to be electrically connected by turbid ity signal amplification treatment circuit 24 with the 2nd AD sampling module 19;2nd DCDC
Power module 17, the second CAN communication module 18, the 2nd AD sampling module 19 are electrically connected with controller 2;2nd DCDC power supply mould
Block 17 is also to power after input voltage to be converted into the operating voltages such as 3V, 5V and -5V to each chip and amplifier;DO sensor 25
The signal of detection passes through DO signal processing circuit 20, then again by the 2nd AD sampling module 19 acquisition built in controller 2
Controller 2 is transferred data to be processed and displayed;The signal that PH sensor 26 detects passes through PH signal processing circuit
21 transfer data to controller 2 by the 2nd AD sampling module 19 acquisition built in controller 2 again again is processed and displayed;
The signal that temperature sensor 27 detects passes through the 2nd AD sampling built in controller 2 by temperature signal amplification treatment circuit 22 again
The acquisition of module 19 transfers data to controller 2 again and is processed and displayed;The signal that chromaticity transducer 28 detects passes through coloration
Signal processing circuit 23 transfers data to controller by the 2nd AD sampling module 19 acquisition built in controller 2 again again
2 are processed and displayed;The signal that turbidity transducer 29 detects passes through controller 2 by turbid ity signal amplification treatment circuit 24 again
Built-in the 2nd AD sampling module 19 acquisition transfers data to controller 2 again and is processed and displayed;Wherein, measured temperature
The pH value that DO value, the PH sensor 26 acquired to DO sensor 25 acquires carries out temperature-compensating.
The model STM32F334 of the controller 2, is illustrated in figure 3 the peripheral circuit diagram of controller 2.
First CAN communication module 11 is electrically connected with the second CAN communication module 18 by conducting wire, so that processor
1 realizes interactive type communication with controller 2, and CAN bus is low in cost, real-time communication is good, error correcting capability is strong and transmission range is long;
Processor 1 passes through to send instructions under CAN, and the data information of detection is transmitted to processor 1 with controller 2;CAN signal line and power supply
Line is encapsulated in a cable 16, is all made of two point two-wire connection type, and cable line length can be according to actual use situation tune
Whole, additional cable protective case 31 is protected;Portion of the handle has cable connector 14, and there is underwater electrical connector in water quality detection part
15;Water quality detection part be upper layer and lower layer, upper layer do sealing water-proofing treatment be used to place circuit structure, sensor is placed in lower layer can
It is immersed in water, battery 13 is also electrically connected with the 2nd DCDC power module 17 by conducting wire;Battery 13 is electric to the first DCDC
Source module 12,17 power supply power supply of the 2nd DCDC power module provide safeguard for complete machine work.It is first shown in Figure 15~17
The main circuit diagram of DCDC power module 12,17 power module of the 2nd DCDC power module.
Further, liquid crystal display 7 can both show testing result, and each measurement mould can also be realized by control
The switch of block, data are saved with transmission, instrument calibration etc..
Further, floating material detection module 4 first passes through camera 5 and takes pictures sampling to water quality, then is obtained by algorithm process
Floater parameter out.
Further, DO and PH measurement is realized using chemical sensor, temperature detection thermocouple, turbidity colour measurement is used
Optical instrument and a kind of structure for being protected from light waterproof completely are realized.
The present apparatus use touch liquid crystal display, be aided with the work of key co- controlling whole device, can measure simultaneously DO,
Seven PH, temperature, coloration, turbidity, floating material and smell water quality parameters, can also choose a part and be tested, and detect every time
Result can not only be shown on liquid crystal display, can also be saved in and external Flash and be sent to host computer.
There is corresponding respective signal processing circuit module per parameter all the way, floating material passes through corresponding image processing algorithm
Collected water quality pictorial information is handled, and then obtains testing result;Odor detection is divided into six according to certain standard
A grade;Temperature detection realizes that DO and PH measurement result is mainly affected by temperature using thermocouple, in calibration by by standard
Liquid, which is placed under different temperatures, carries out temperature-compensating, it is ensured that the accuracy of testing result;The measurement of turbidity and coloration is using optics member
Interlock circuit is placed in the structure that one is protected from light waterproof and realizes, avoids external interference by device.
Present apparatus portion of the handle only need cup size it is achieved that water quality detection part be top seal it is anti-,
Lower part install sensor metal structure, compact overall structure, it is easy to carry, without special messenger operation, it is powerful, not by place
With the influence of detection environment.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (7)
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110487750A (en) * | 2019-06-28 | 2019-11-22 | 山东开创云软件有限公司 | A kind of the water pollution detection method and system in river |
CN115825364A (en) * | 2022-10-13 | 2023-03-21 | 青海九零六工程勘察设计院有限责任公司 | System and method for detecting water quality of drinking mineral water |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4940946A (en) * | 1988-12-13 | 1990-07-10 | Sampson Nazaryan | Pool water sensor with an extendible pronged probe for determining pH and chlorine levels |
WO2012130307A1 (en) * | 2011-03-31 | 2012-10-04 | Hach Lange Gmbh | Laboratory water analysis device |
KR20140092782A (en) * | 2013-01-16 | 2014-07-24 | 주식회사 인포월드 | Apparatus for observation underground water |
CN104122376A (en) * | 2014-06-30 | 2014-10-29 | 南京领先环保技术有限公司 | Multi-parameter water quality analyzer |
CN204203213U (en) * | 2014-12-02 | 2015-03-11 | 温州市骐邦环保科技有限公司 | A kind of water quality monitoring system |
CN204536315U (en) * | 2015-04-01 | 2015-08-05 | 佛山市美的清湖净水设备有限公司 | Water quality detection system, water quality detection device and mobile terminal |
CN105181920A (en) * | 2015-09-02 | 2015-12-23 | 启东市久新印染有限公司 | Omnidirectional water quality monitoring system |
CN205280139U (en) * | 2015-12-29 | 2016-06-01 | 全国水产技术推广总站 | Portable intelligent water quality testing device |
CN206489145U (en) * | 2017-02-08 | 2017-09-12 | 湖南漫步山河信息科技有限公司 | A kind of color of black and odorous water and smell real time monitoring apparatus |
CN206892094U (en) * | 2017-07-19 | 2018-01-16 | 山东工商学院 | A kind of Portable water quality monitoring device and water quality monitoring system |
CN108445177A (en) * | 2018-04-09 | 2018-08-24 | 衡水学院 | A kind of lake water safety detection device for environmental protection |
CN108845092A (en) * | 2018-06-26 | 2018-11-20 | 合肥赑歌数据科技有限公司 | A kind of aquatic environment detection device based on Internet of Things |
-
2019
- 2019-03-04 CN CN201910160111.1A patent/CN109725122A/en active Pending
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4940946A (en) * | 1988-12-13 | 1990-07-10 | Sampson Nazaryan | Pool water sensor with an extendible pronged probe for determining pH and chlorine levels |
WO2012130307A1 (en) * | 2011-03-31 | 2012-10-04 | Hach Lange Gmbh | Laboratory water analysis device |
KR20140092782A (en) * | 2013-01-16 | 2014-07-24 | 주식회사 인포월드 | Apparatus for observation underground water |
CN104122376A (en) * | 2014-06-30 | 2014-10-29 | 南京领先环保技术有限公司 | Multi-parameter water quality analyzer |
CN204203213U (en) * | 2014-12-02 | 2015-03-11 | 温州市骐邦环保科技有限公司 | A kind of water quality monitoring system |
CN204536315U (en) * | 2015-04-01 | 2015-08-05 | 佛山市美的清湖净水设备有限公司 | Water quality detection system, water quality detection device and mobile terminal |
CN105181920A (en) * | 2015-09-02 | 2015-12-23 | 启东市久新印染有限公司 | Omnidirectional water quality monitoring system |
CN205280139U (en) * | 2015-12-29 | 2016-06-01 | 全国水产技术推广总站 | Portable intelligent water quality testing device |
CN206489145U (en) * | 2017-02-08 | 2017-09-12 | 湖南漫步山河信息科技有限公司 | A kind of color of black and odorous water and smell real time monitoring apparatus |
CN206892094U (en) * | 2017-07-19 | 2018-01-16 | 山东工商学院 | A kind of Portable water quality monitoring device and water quality monitoring system |
CN108445177A (en) * | 2018-04-09 | 2018-08-24 | 衡水学院 | A kind of lake water safety detection device for environmental protection |
CN108845092A (en) * | 2018-06-26 | 2018-11-20 | 合肥赑歌数据科技有限公司 | A kind of aquatic environment detection device based on Internet of Things |
Non-Patent Citations (2)
Title |
---|
刘波文: "《嵌入式实时操作系统uC-OS-II经典示例——基于STM32处理器(第2版)》", 31 May 2014, 北京航空航天大学出版社 * |
郑群英: "《dsPIC通用数字信号控制器原理及应用:基于dsPIC30F》", 31 July 2007, 北京航空航天大学出版社 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110487750A (en) * | 2019-06-28 | 2019-11-22 | 山东开创云软件有限公司 | A kind of the water pollution detection method and system in river |
CN115825364A (en) * | 2022-10-13 | 2023-03-21 | 青海九零六工程勘察设计院有限责任公司 | System and method for detecting water quality of drinking mineral water |
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