CN118603890B - Optical fiber water supply network water quality monitoring equipment and monitoring system - Google Patents
Optical fiber water supply network water quality monitoring equipment and monitoring system Download PDFInfo
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- CN118603890B CN118603890B CN202411083088.8A CN202411083088A CN118603890B CN 118603890 B CN118603890 B CN 118603890B CN 202411083088 A CN202411083088 A CN 202411083088A CN 118603890 B CN118603890 B CN 118603890B
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 51
- 238000012806 monitoring device Methods 0.000 claims abstract description 25
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- 238000004891 communication Methods 0.000 claims abstract description 18
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- 230000003287 optical effect Effects 0.000 claims description 34
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 9
- 229910001416 lithium ion Inorganic materials 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 7
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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
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
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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
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
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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
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/071—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using a reflected signal, e.g. using optical time domain reflectometers [OTDR]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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Abstract
本发明公开了一种光纤供水管网水质监测设备及监测系统，包括安装在供水管网上的监测设备本体，所述监测设备本体包括传感组件、支撑框架、供电组件、清洁组件以及光纤固定结构：所述传感组件，安装在供水管网上，且传感组件的底部延伸至供水管网的内部，所述传感组件的上方连接有支撑框架；所述支撑框架，位于供水管网的上方，支撑框架的下方与传感组件连接。本发明通过监测设备与系统结合使用，整体安装结构简单，可以确保水质监测设备与供水管网的无缝集成，实现实时在线监测供水水质，并能够直接通过数据通信模块传输到监控中心进行进一步分析和处理，克服信号干扰、通信网络覆盖不完全的问题，加强监测时数据的准确性，保障供水安全。
The present invention discloses a fiber optic water supply network water quality monitoring device and monitoring system, including a monitoring device body installed on the water supply network, the monitoring device body including a sensor component, a support frame, a power supply component, a cleaning component and an optical fiber fixing structure: the sensor component is installed on the water supply network, and the bottom of the sensor component extends to the inside of the water supply network, and the top of the sensor component is connected to the support frame; the support frame is located above the water supply network, and the bottom of the support frame is connected to the sensor component. The present invention combines the monitoring device with the system, and the overall installation structure is simple, which can ensure the seamless integration of the water quality monitoring device and the water supply network, realize real-time online monitoring of water supply quality, and can be directly transmitted to the monitoring center through the data communication module for further analysis and processing, overcome the problems of signal interference and incomplete coverage of the communication network, enhance the accuracy of the data during monitoring, and ensure water supply safety.
Description
Technical Field
The invention relates to the technical field of water quality monitoring, in particular to a fiber water supply network water quality monitoring device and a monitoring system.
Background
Along with the acceleration of the urban process and the development of industrialization, the complexity and the scale of a water supply system are continuously enlarged, and the important social demands for ensuring the water supply safety and reaching the standard of the water quality are formed. The development of on-line monitoring technology makes real-time and accurate water quality monitoring possible.
However, because the coverage area of the water supply network is wide, the pipeline is complex, and the installation of the monitoring points is difficult. Second, the on-line monitoring device needs to have high sensitivity and stability to cope with diversification and real-time variation of water quality parameters.
Currently, the method for on-line water quality monitoring of the water supply network mainly comprises a physicochemical sensor method, an optical sensor method and a biological sensor method. Among them, the physicochemical sensor method can generally test PH, dissolved oxygen, chloride ions, etc., and the optical sensor method can test organic matters in water, etc. But these monitoring methods currently present installation difficulties. The difficulty of its installation is:
1. The water supply pipe network has narrow space of monitoring points, and the monitoring equipment is difficult to install;
2. the monitoring data needs to be transmitted and accurate in time, and signal interference in a pipe network environment, incomplete coverage of a communication network and the like need to be overcome.
Therefore, the optical fiber water supply network water quality monitoring equipment and the monitoring system are designed to solve the problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides an optical fiber water supply network water quality monitoring device and a monitoring system.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The utility model provides an optic fibre water supply network water quality monitoring facilities and monitoring system, includes the monitoring facilities body of installing on the delivery pipe net, the monitoring facilities body includes sensing subassembly, braced frame, power supply subassembly, clean subassembly and optic fibre fixed knot construct:
the sensing assembly is arranged on the water supply network, the bottom of the sensing assembly extends to the inside of the water supply network, and a supporting frame is connected above the sensing assembly;
The support frame is positioned above the water supply network, the lower part of the support frame is connected with the sensing assembly, and the power supply assembly is arranged above the support frame;
the top end of the cleaning component is arranged on the supporting frame, and the bottom end of the cleaning component extends to the inside of the water supply network along the sensing component;
The optical fiber fixing structure comprises two optical fiber fixing nuts, and the sensing assembly is fixedly arranged on the water supply pipe network through the optical fiber fixing nuts.
Preferably, the sensing component comprises an LED light source, a monochromator, a spectroscope, a reference optical fiber, a photoelectric detector, an incident optical fiber, an emergent optical fiber, a water inlet hole, a water outlet hole and a magnetic attraction structure;
The LED light source, the monochromator, the spectroscope, the reference optical fiber and the photoelectric detector form an underwater light path structure, and the incident optical fiber, the emergent optical fiber, the water inlet hole, the water outlet hole and the magnetic attraction structure form an underwater light path structure.
Preferably, the incident optical fiber and the emergent optical fiber are fixedly arranged on the water supply pipe network through optical fiber fixing structures, the bottoms of the incident optical fiber and the emergent optical fiber are fixedly connected through magnetic attraction structures, and the water inlet hole and the water outlet hole are respectively arranged above and below the magnetic attraction structures;
The top of the incident optical fiber is sequentially connected with a spectroscope, a monochromator and an LED light source;
The top of the emergent optical fiber is connected with a photoelectric detector, and the photoelectric detector is connected with the spectroscope through a reference optical fiber.
Preferably, the magnetic attraction structure comprises four magnetic attraction blocks, and the four magnetic attraction blocks form a space for the passage of underwater optical signals.
Preferably, the power supply assembly comprises a solar panel, a power management module and a lithium ion battery, and the solar panel, the power management module and the lithium ion battery are in circuit connection.
Preferably, the cleaning component comprises a cylindrical water pipe, a water spraying disc, a connecting water pipe, a cleaning pump and a water storage tank, wherein the cylindrical water pipe is embedded and installed in the optical fiber fixing structure, the bottom of the cylindrical water pipe extends to the inner part of the water supply pipe network through the optical fiber fixing structure and is connected with the water spraying disc in a penetrating way, and the top of the cylindrical water pipe is connected with the cleaning pump and the water storage tank through the connecting water pipe;
the bottom of the water spraying disc is provided with a plurality of rows of water spraying holes with inclined angles.
A monitoring system of optical fiber water supply network water quality monitoring equipment comprises a control display board, an optical time domain reflection module, a data processing circuit, a digital-to-analog conversion circuit, a data communication module, a memory, a signal amplifier and a warning indicator;
The optical time domain reflection module is connected with the sensing assembly and the cleaning assembly, the data processing circuit, the digital-to-analog conversion circuit, the data communication module, the memory and the signal amplifier integrated circuit board are connected with the control display board and the alarm through circuits.
Preferably, the optical time domain reflection module is an optical time domain reflectometer, and the optical time domain reflectometer is in signal connection with the sensing component.
Compared with the prior art, the invention has the beneficial effects that:
1. The monitoring equipment and the system are combined for use, the sensing assembly can be implanted in the process of manufacturing the water supply pipe net material, and can be installed in the existing water supply pipe net through punching, so that the installation structure is simple, seamless integration of the water quality monitoring equipment and the water supply pipe net can be ensured, real-time on-line monitoring of the water quality of water supply is realized, and timely transmission and accuracy of water quality monitoring data can be ensured.
2. Through this sensing subassembly and system combination, can directly transmit to monitoring center through data communication module and carry out further analysis and handle, overcome signal interference, the incomplete problem of communication network coverage, simultaneously, can monitor the surface of incident optic fibre and exit optic fibre, in time discover and handle quality of water and be used for monitoring the unusual of incident optic fibre and exit optic fibre, when abnormal point appears, the transmission signal gives the attention device to transmit to monitoring center through data communication module, the accuracy of data when strengthening the monitoring, guarantee water supply safety.
Drawings
FIG. 1 is a schematic diagram of a water quality monitoring device and a monitoring system for an optical fiber water supply network according to the present invention;
Fig. 2 is a schematic structural diagram of a monitoring device body of an optical fiber water supply network water quality monitoring device and a monitoring system according to the present invention;
FIG. 3 is a schematic structural diagram of a portion of a data detection system and a water quality monitoring device for an optical fiber water supply network according to the present invention;
Fig. 4 is a system workflow diagram of an optical fiber water supply network water quality monitoring device and a monitoring system according to the present invention.
In the figure, a monitoring device body, a2 sensing component, a 201 LED light source, a 202 monochromator, a 203 spectroscope, a 204 reference optical fiber, a 205 photoelectric detector, a 206 incident optical fiber, a 207 emergent optical fiber, a 208 water inlet hole, a 209 water outlet hole, a 210 magnetic attraction structure, a3 supporting frame, a 4 power supply component, a 401 solar panel, a 402 lithium ion battery, a 5 cleaning component, a 501 cylindrical water pipe, a 502 water spraying disk, a 503 water receiving pipe, a 6 optical fiber fixing structure, a 7 control display panel and an 8 water supply pipe network are shown in the figure.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
In the following embodiments, an optical fiber water supply network water quality monitoring device and a monitoring system are designed, and the optical fiber technology is utilized to integrate water supply quality monitoring with a water supply network. The sensor and the data acquisition and transmission equipment provided by the invention can be implanted in the water supply network pipe manufacturing process, or can be installed in the existing water supply network through punching.
The invention selects an optical sensor which can test turbidity, COD, BOD value and the like of pipe network water quality, and the following examples take COD measurement as an example to explain the invention.
The main formula of the measurement process relates to the linear relation between absorbance A and COD value, namely lambert-beer law,
A=ε×b×c, where ε is a molar absorption coefficient, b is an optical path (distance between two magnetic attraction is 1 cm), and c is a COD value.
(1) Preparing a series of standard solutions with known COD values, and measuring the absorbance A of the standard solution at 254nm wavelength by using the device;
(2) Drawing a calibration curve of absorbance and COD value to obtain a linear relation formula COD=K, wherein K is a slope, and b1 is an intercept;
(3) Writing the calibration formula obtained in the step (2) into the system micro-processing controller;
(4) And calculating to obtain the numerical value of the COD of the sample according to the linear relation and the absorbance of the pipe network water quality.
Examples
Referring to fig. 1 to 3, an optical fiber water supply network water quality monitoring device and monitoring system includes a monitoring device body 1 installed on a water supply network 8, the monitoring device body 1 including a sensing assembly 2, a support frame 3, a power supply assembly 4, a cleaning assembly 5, and an optical fiber fixing structure 6;
in the embodiment, the sensing assembly 2 is installed on the water supply network 8, the bottom of the sensing assembly 2 extends into the water supply network 8, and the supporting frame 3 is connected above the sensing assembly 2;
The sensing component 2 comprises an LED light source 201, a monochromator 202, a spectroscope 203, a reference optical fiber 204, a photoelectric detector 205, an incident optical fiber 206, an emergent optical fiber 207, a water inlet 208, a water outlet 209 and a magnetic attraction structure 210;
the LED light source 201, the monochromator 202, the spectroscope 203, the reference optical fiber 204 and the photoelectric detector 205 form an underwater light path structure, and the incident optical fiber 206, the emergent optical fiber 207, the water inlet 208, the water outlet 209 and the magnetic attraction structure 210 form an underwater light path structure.
More specifically, the incident optical fiber 206 and the emergent optical fiber 207 are fixedly installed on the water supply pipe network 8 through the optical fiber fixing structure 6, the bottoms of the incident optical fiber 206 and the emergent optical fiber 207 are fixedly connected through the magnetic structure 210, and the water inlet hole 208 and the water outlet hole 209 are respectively arranged above and below the magnetic structure 210;
the top of the incident optical fiber 206 is sequentially connected with the spectroscope 203, the monochromator 202 and the LED light source 201, the top of the emergent optical fiber 207 is connected with the photoelectric detector 205, and the photoelectric detector 205 is connected with the spectroscope 203 through the reference optical fiber 204;
in this embodiment, the LED light source 201 is used to provide a light source, if the COD, BOD or organic matter value in the water body is tested, the LED light source 201 in the ultraviolet range can be used, and if the turbidity is tested, the value in the visible range can be selected.
Monochromator 202 is an optical device for separating mixed wavelength light beams from a light source, isolating light beams of one particular wavelength from the light source, and passing or reflecting light beams of other wavelengths. Among them, the monochromator 202 is of many different types including a prism-type monochromator, a grating-type monochromator, an interference-type monochromator, and the like. In the invention, a grating monochromator is generally selected, if turbidity needs to be tested, a monochromator with the wavelength of 546nm can be selected, and if organic matter parameters in a water body need to be tested, a monochromator with the wavelength of 245nm can be selected.
Beam splitter 203 is an optical device for splitting an incident beam of light into two or more beams of light. The invention selects a transmission type spectroscope 203, and utilizes the refraction characteristics of light in different media to equally divide one beam of light into two beams of light entering a pipe network and a photosensitive detector. The parallel light is used as a reference, and the perpendicular light is used for detection.
In the present invention, the incident optical fiber 206 and the outgoing optical fiber 207 are fixed in the water supply network by two optical fiber fixing nuts of the optical fiber fixing structure 6.
Among them, referring to the optical fiber 204, the incident optical fiber 206 and the outgoing optical fiber 207 are used for transmitting optical signals, and in the present invention, referring to the optical fiber 204, both the incident optical fiber 206 and the outgoing optical fiber 207 are quartz optical fibers.
In the present invention, the magnetic attraction structure 210 includes four magnetic attraction blocks, and the four magnetic attraction blocks form a space through which the underwater light signal passes, and water in the space is used for testing the water quality of the water body. The water inlet hole 208 and the water outlet hole 209 are respectively positioned above and below the magnetic attraction structure 210, so that the space formed by magnetic attraction always has real-time updated water flow. By combining the four magnetic blocks into a closed space and arranging the water inlet hole 208 and the water outlet hole 209, the incident optical fiber 206 and the emergent optical fiber 207 are arranged on the magnetic blocks through the optical fiber locking nuts, the incident optical fiber 206 and the emergent optical fiber 207 are ensured to be aligned with the center of the optical path, and in order to ensure a proper optical path, the distance between the magnetic blocks is 1cm.
The outside of the magnetic structure 210 is also provided with an optical fiber locking nut, which is used for fixedly connecting the incident optical fiber 206 or the emergent optical fiber 207 with the magnetic structure 210 and fixing the optical fiber on the magnetic structure 210.
The photodetector 205, also called a photodiode, is configured to receive the absorption light transmitted from the outgoing optical fiber 207 and the reference light transmitted from the reference optical fiber 204, and convert the light intensity into a current signal.
It should be noted that, the optical fiber lock nut fixes the ends of the incident optical fiber 206 and the emergent optical fiber 207 on the magnetic attraction block through a threaded connection or a clamping mechanism, and the ends of the optical fibers can be aligned to the magnetic attraction space through the optical fiber lock nut so as to ensure that the optical signal can accurately pass through the water body.
More specifically, in this embodiment, the design of the fiber lock nut may include a sealing ring or gasket to prevent water from leaking from the connection point between the incident fiber 206 and the exit fiber 207, and maintain the stability of the test water.
In this embodiment, the top end of the cleaning assembly 5 is mounted on the support frame 3, and the bottom end extends along the sensing assembly 2 to the inside of the water supply network 8.
The cleaning assembly 5 comprises a cylindrical water pipe 501, a water spraying disc 502, a connecting water pipe 503, a cleaning pump and a water storage tank, wherein the cylindrical water pipe 501 is embedded and installed in the optical fiber fixing structure 6, the bottom of the cylindrical water pipe 501 extends to the inner through link of the water supply pipe network 8 through the optical fiber fixing structure 6, the water spraying disc 502 is connected with the top of the cylindrical water pipe 501 through the connecting water pipe 503, the cleaning pump and the water storage tank are connected, and a plurality of rows of water spraying holes which are arranged at inclined angles are formed in the bottom of the water spraying disc 502.
In use, the cleaning assembly 5 of the present embodiment can be used to clean the incoming optical fiber 206 and outgoing optical fiber 207 extending into the water supply network 8 when water impurities are adhered to the lower portions of the incoming optical fiber 206 and outgoing optical fiber 207 during long-term use.
The support frame 3 is located above the water supply network 8, the lower part of the support frame 3 is connected with the sensing component 2, the power supply component 4 is installed above the support frame 3, the power supply component 4 comprises a solar panel 401, a power management module and a lithium ion battery 402, the solar panel 401 is in circuit connection with the power management module and the lithium ion battery 402, and the solar panel 401 and the lithium ion battery 402 are used for providing power for the system.
The monitoring system of the water quality monitoring equipment of the optical fiber water supply network comprises a control display panel 7, an optical time domain reflection module, a data processing circuit, a digital-to-analog conversion circuit, a data communication module, a memory, a signal amplifier and a warning indicator;
The optical time domain reflection module is connected with the sensing assembly 2 and the cleaning assembly 5, and the data processing circuit, the digital-to-analog conversion circuit, the data communication module, the memory and the signal amplifier integrated circuit board are connected with the control display panel 7 and the alarm through circuits.
In this embodiment, referring to fig. 4, in operation, power is mainly supplied through the solar panel 401 and stored through the lithium ion battery, and after the LED light source 201 is supplied by the solar panel 401, the water quality parameter is measured by utilizing the refraction characteristics of light in different media through the transmission of light (the matching transmission of the incident optical fiber 206 and the emergent optical fiber 207) and the interaction with the media (i.e. the water body). For measurement of COD, the photodetector 205 can determine the COD value by detecting the absorption of light of a specific wavelength by the water sample. COD generally represents the concentration of organic matter in water, and the photodetector 205 determines the content of such organic matter by spectroscopic analysis.
After the photodetector 205 acquires and absorbs the signal, the signal is amplified and converted and then transmitted to the control display panel 7 to display data.
In this embodiment, the control display panel 7 can display current water quality data, and the power management module is responsible for providing stable power for the whole system, including voltage regulation, power distribution and power protection;
The control display panel 7 is also connected with an interface module for realizing communication and connection between the system and external equipment or other systems;
and the data communication module is used for realizing wireless communication and is used for data transmission and system networking and comprises a Bluetooth module, a 4G module or a 5G module.
The data processing circuit mainly comprises a microprocessor or a microcontroller and mainly completes data processing for executing an instruction set.
The DAC converts the digital signal into the analog signal, and the key parameters of the DAC are resolution, sampling rate, linearity and the like.
The signal amplifier is used for amplifying weak electric signals to a usable level due to weaker signals after photoelectric conversion, so that the strength and quality of the signals in the subsequent processing and transmission processes are ensured.
The optical time domain reflectometer is connected with the top ends of the incident optical fiber 206 and the emergent optical fiber 207, when in use, the optical fibers are connected, namely the incident optical fiber 206 and the emergent optical fiber 207 to be detected are connected to the optical time domain reflectometer, the optical time domain reflectometer is started to send light pulses and record reflected signals, then an echo curve displayed by the optical time domain reflectometer is used for judging abnormal points in the optical fibers, when the abnormal points occur, the abnormal points are transmitted to the alarm, and the signals are transmitted to the monitoring center through the data communication module, so that the monitoring through the incident optical fiber 206 and the emergent optical fiber 207 in the monitoring process can be realized, and the accuracy of data in the monitoring process is enhanced.
When measuring COD, the system emits ultraviolet light through the LED light source and the light beam enters the water sample through the monochromator and the incident optical fiber 206. Organic matters in water can absorb part of ultraviolet light, and the light intensity after the water sample is transmitted can be weakened. The photoelectric detector receives the optical signal transmitted through the water sample and converts the optical signal into an electric signal. The signal amplifying processor amplifies and processes the signal to obtain the COD value. The data is stored in the memory, and can be directly transmitted to a monitoring center through a data communication module for further analysis and processing, so that the problems of signal interference and incomplete coverage of a communication network are overcome. Simple structure, it is convenient to install, can guarantee the timely transmission and the accuracy of water quality monitoring data.
Through the monitoring mode, the water quality condition in the water supply network can be monitored in real time, the water quality abnormality can be found and treated in time, and the water supply safety is ensured.
The monitoring equipment is used in combination with the system, the sensing assembly 2 can be implanted in the process of manufacturing the water supply pipe network 8, and can be installed into the existing water supply pipe network 8 through punching, so that the installation structure is simple, seamless integration of the water quality monitoring equipment and the water supply pipe network can be ensured, and real-time online monitoring of water quality of water supply is realized.
In the long-time operation process of the incident optical fiber 206 and the exit optical fiber 207, when the optical time domain reflectometer detects that the water impurities adhere to the incident optical fiber 206 and the exit optical fiber 207, the cleaning pump is controlled to work, so that the water spray tray 502 can clean the outside of the incident optical fiber 206 and the exit optical fiber 207 quickly, the accuracy of data during monitoring can be enhanced, and in the cleaning process, the internal aqueous solution of the water supply network 8 is in a discharge state.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be appreciated by persons skilled in the art that the present invention is not limited to the embodiments described above, but is capable of numerous variations and modifications without departing from the spirit and scope of the invention as hereinafter claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
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| CN103149158A (en) * | 2013-01-14 | 2013-06-12 | 中国计量学院 | Double-prism water quality monitoring optical fiber sensing system |
| CN114878474A (en) * | 2022-06-10 | 2022-08-09 | 中国地质调查局水文地质环境地质调查中心 | Optical fiber sensor for on-line monitoring of chlorophenols organic matters in water |
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| EP1228358B1 (en) * | 1999-10-18 | 2005-02-02 | Siemens Plc | Device for measuring water colour and turbidity using a single detector |
| KR101108276B1 (en) * | 2009-02-02 | 2012-01-31 | 경북대학교 산학협력단 | Multi Water Quality Monitoring Sensor |
| EP3270143B1 (en) * | 2011-12-12 | 2021-04-21 | Senturion Water Monitoring, LLC | Method for determining error in a chemical indicator reading and hardware storage device comprising instructions for performing the method |
| CN103323400A (en) * | 2013-06-06 | 2013-09-25 | 上海物联网有限公司 | Multi-parameter integrated water quality on-line monitoring sensing system |
| CN104198388B (en) * | 2014-09-15 | 2017-05-10 | 中国科学院烟台海岸带研究所 | Online water quality monitoring device based on composite spectrum measurement |
| CN106678550A (en) * | 2016-12-01 | 2017-05-17 | 广东工业大学 | Water pipe leakage monitoring device and monitoring method based on distributed optical fiber sensing |
| CN111239063A (en) * | 2020-02-21 | 2020-06-05 | 大连理工大学 | A capillary-based fiber optic water quality monitoring probe structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103149158A (en) * | 2013-01-14 | 2013-06-12 | 中国计量学院 | Double-prism water quality monitoring optical fiber sensing system |
| CN114878474A (en) * | 2022-06-10 | 2022-08-09 | 中国地质调查局水文地质环境地质调查中心 | Optical fiber sensor for on-line monitoring of chlorophenols organic matters in water |
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