Optical fiber water supply network water quality monitoring equipment and monitoring system

Abstract

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

[0001] The present invention relates to the technical field of water quality monitoring, and in particular to a water quality monitoring device and a monitoring system for an optical fiber water supply network. Background Art

[0002] With the acceleration of urbanization and the development of industrialization, the complexity and scale of water supply systems are constantly expanding. Ensuring water supply safety and water quality compliance has become an important social need. The development of online monitoring technology has made real-time and accurate water quality monitoring possible.

[0003] However, due to the wide coverage and complex pipelines of the water supply network, the installation of monitoring points is difficult. Secondly, online monitoring equipment needs to have high sensitivity and stability to cope with the diversity and real-time changes of water quality parameters.

[0004] At present, the methods for online water quality monitoring of water supply networks mainly include physical and chemical sensor method, optical sensor method and biosensor method. Among them, the physical and chemical sensor method can generally test pH value, dissolved oxygen, chloride ions, etc., and the optical sensor method can test organic matter in water, etc. However, these monitoring methods are currently difficult to install. The difficulties in their installation are:

[0005] 1. The space for monitoring points in the water supply network is small, making it difficult to install monitoring equipment;

[0006] 2. Monitoring data needs to be transmitted in a timely and accurate manner, and needs to overcome signal interference in the pipe network environment and incomplete communication network coverage.

[0007] As mentioned above, we have designed a fiber optic water supply network water quality monitoring equipment and monitoring system to solve the above problems. Summary of the invention

[0008] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a water quality monitoring device and a monitoring system for an optical fiber water supply network.

[0009] In order to achieve the above object, the present invention adopts the following technical solutions:

[0010] An optical fiber water supply network water quality monitoring device and monitoring system, comprising a monitoring device body installed on the water supply network, the monitoring device body comprising a sensor component, a support frame, a power supply component, a cleaning component and an optical fiber fixing structure:

[0011] The sensor assembly is installed on the water supply network, and the bottom of the sensor assembly extends to the inside of the water supply network, and the top of the sensor assembly is connected to a support frame;

[0012] The support frame is located above the water supply network, the bottom of the support frame is connected to the sensor component, and the top of the support frame is equipped with a power supply component;

[0013] The top end of the cleaning component is mounted on the support frame, and the bottom end extends along the sensor component to the inside of the water supply network;

[0014] The optical fiber fixing structure includes two optical fiber fixing nuts, and the sensor component is fixedly installed on the water supply network through the optical fiber fixing nuts.

[0015] Preferably, the sensor assembly includes an LED light source, a monochromator, a spectroscope, a reference optical fiber, a photodetector, an incident optical fiber, an output optical fiber, a water inlet, a water outlet, and a magnetic attraction structure;

[0016] The LED light source, monochromator, spectroscope, reference optical fiber and photoelectric detector constitute an above-water optical path structure, and the incident optical fiber, output optical fiber, water inlet, water outlet and magnetic attraction structure constitute an underwater optical path structure.

[0017] Preferably, the incident optical fiber and the outgoing optical fiber are both fixedly installed on the water supply network through an optical fiber fixing structure, the bottoms of the incident optical fiber and the outgoing optical fiber are fixedly connected by a magnetic structure, and the water inlet and the water outlet are respectively opened above and below the magnetic structure;

[0018] The top of the incident optical fiber is connected to a beam splitter, a monochromator and an LED light source in sequence;

[0019] The top of the output optical fiber is connected with a photodetector, and the photodetector is connected to the spectroscope via a reference optical fiber.

[0020] Preferably, the magnetic structure includes four magnetic blocks, and the four magnetic blocks form a space for underwater optical signals to pass through.

[0021] Preferably, the power supply component includes 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 circuit-connected.

[0022] Preferably, the cleaning assembly comprises a cylindrical water pipe, a water spraying plate, a connecting water pipe, a cleaning pump and a water storage tank. The cylindrical water pipe is embedded and installed inside the optical fiber fixing structure. The bottom of the cylindrical water pipe extends through the optical fiber fixing structure to the inside of the water supply network and is connected to the water spraying plate. The top of the cylindrical water pipe is connected to the cleaning pump and the water storage tank through the connecting water pipe.

[0023] The bottom of the water spray plate is provided with a plurality of rows of water spray holes arranged at an inclined angle.

[0024] A monitoring system for water quality monitoring equipment of an optical fiber water supply network, comprising a control display panel, an optical time domain reflectometer module, a data processing circuit, a digital-to-analog conversion circuit, a data communication module, a memory, a signal amplifier and an alarm;

[0025] The optical time domain reflection module is connected to the sensing component and the cleaning component, and the data processing circuit, the digital-to-analog conversion circuit, the data communication module, the memory and the signal amplifier integrated circuit board, the circuit board and the optical time domain reflection module are all connected to the circuit between the control display panel and the alarm.

[0026] Preferably, the optical time domain reflectometer module is an optical time domain reflectometer, and the optical time domain reflectometer is signal-connected to the sensor component.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The monitoring equipment is used in combination with the system. The sensor components can be implanted in the process of making water supply pipe network materials, or they can be installed in the existing water supply network by drilling holes. The installation structure is simple, which can ensure the seamless integration of water quality monitoring equipment and water supply network, realize real-time online monitoring of water quality, and ensure the timely transmission and accuracy of water quality monitoring data.

[0029] 2. By combining the sensor component with the system, it can be directly transmitted to the monitoring center through the data communication module for further analysis and processing, overcoming the problems of signal interference and incomplete communication network coverage. At the same time, it can monitor the outer surface of the incident optical fiber and the output optical fiber, timely discover and deal with water quality, and monitor the abnormalities of the incident optical fiber and the output optical fiber. When an abnormal point occurs, a signal is transmitted to the alarm and transmitted to the monitoring center through the data communication module, thereby enhancing the accuracy of the data during monitoring and ensuring water supply safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the structure of an optical fiber water supply network water quality monitoring device and a monitoring system proposed by the present invention;

[0031] Figure 2 This is a schematic diagram of the structure of a monitoring device body of an optical fiber water supply network water quality monitoring device and a monitoring system proposed by the present invention;

[0032] Figure 3 This is a schematic structural diagram of the data detection part of an optical fiber water supply network water quality monitoring device and a monitoring system proposed by the present invention;

[0033] Figure 4 This is a system workflow diagram of an optical fiber water supply network water quality monitoring device and a monitoring system proposed by the present invention.

[0034] In the figure: 1 monitoring device body, 2 sensor component, 201 LED light source, 202 monochromator, 203 spectroscope, 204 reference optical fiber, 205 photoelectric detector, 206 incident optical fiber, 207 output optical fiber, 208 water inlet, 209 water outlet, 210 magnetic structure, 3 support frame, 4 power supply component, 401 solar panel, 402 lithium-ion battery, 5 cleaning component, 501 cylindrical water pipe, 502 water spray plate, 503 water connecting pipe, 6 optical fiber fixing structure, 7 control display board, 8 water supply network. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] In the following embodiments, a fiber optic water supply network water quality monitoring device and monitoring system are designed, which uses fiber optic technology to integrate water supply quality monitoring with the water supply network. Generally, the sensor and data acquisition device provided by the present invention can be implanted during the production of water supply network pipes; the sensor and data acquisition transmission device provided by the present invention can also be installed in the existing water supply network by drilling holes.

[0037] The present invention selects an optical sensor, which can test the turbidity, COD, BOD values, etc. of the water quality of the pipe network. The following embodiment takes the measurement of COD as an example to explain the content of the invention.

[0038] The main formula of the measurement process involves the linear relationship between absorbance A and COD value, namely Lambert-Beer law.

[0039] A=ε*b*c, where ε is the molar absorption coefficient, b is the optical path (the distance between the two magnetic attractors, 1 cm), and c is the COD value.

[0040] (1) Prepare a series of standard solutions with known COD values, and use this device to measure the absorbance A of the standard solutions at a wavelength of 254 nm; (During calibration, the device can be placed in a container with the standard solutions in it);

[0041] (2) Draw a calibration curve of absorbance and COD value to obtain the linear relationship between absorbance and COD: COD = K*A + b1, where K is the slope and b1 is the intercept;

[0042] (3) writing the calibration formula obtained in (2) into the microprocessor controller of the system;

[0043] (4) Calculate the COD value of the sample based on the calibration linear relationship and the absorbance of the pipe network water quality.

[0044] Example

[0045] Reference Figures 1 to 3 , an optical fiber water supply network water quality monitoring device and monitoring system, comprising a monitoring device body 1 installed on a water supply network 8, the monitoring device body 1 comprising a sensor component 2, a support frame 3, a power supply component 4, a cleaning component 5 and an optical fiber fixing structure 6;

[0046] In this embodiment, the sensor assembly 2 is installed on the water supply network 8, and the bottom of the sensor assembly 2 extends to the inside of the water supply network 8, and the upper part of the sensor assembly 2 is connected to the support frame 3;

[0047] The sensor assembly 2 includes an LED light source 201, a monochromator 202, a spectroscope 203, a reference optical fiber 204, a photodetector 205, an incident optical fiber 206, an output optical fiber 207, a water inlet 208, a water outlet 209 and a magnetic attraction structure 210.

[0048] The LED light source 201, the monochromator 202, the beam splitter 203, the reference optical fiber 204, and the photodetector 205 constitute an above-water optical path structure, and the incident optical fiber 206, the output optical fiber 207, the water inlet 208, the water outlet 209, and the magnetic attraction structure 210 constitute an underwater optical path structure.

[0049] More specifically, the incident optical fiber 206 and the outgoing optical fiber 207 are both fixedly installed on the water supply network 8 through the optical fiber fixing structure 6, the bottoms of the incident optical fiber 206 and the outgoing optical fiber 207 are fixedly connected through the magnetic structure 210, and the water inlet 208 and the water outlet 209 are respectively opened above and below the magnetic structure 210;

[0050] The top of the incident optical fiber 206 is connected to the beam splitter 203, the monochromator 202 and the LED light source 201 in sequence, and the top of the output optical fiber 207 is connected to the photodetector 205, and the photodetector 205 is connected to the beam splitter 203 through the reference optical fiber 204;

[0051] 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. If the turbidity is tested, the value in the visible range can be selected.

[0052] Monochromator 202 is an optical device used to separate mixed wavelength light beams from a light source, isolate a light beam of a specific wavelength, and pass or reflect light beams of other wavelengths. There are many different types of monochromator 202, including prism-type monochromator, grating-type monochromator, interference-type monochromator, etc. In this invention, a grating-type monochromator is generally selected. If turbidity needs to be tested, a 546nm monochromator can be selected. If organic matter parameters in water need to be tested, a 245nm monochromator can be selected.

[0053] Beam splitter 203 is an optical device used to split an incident light beam into two or more beams. The present invention selects a transmission type beam splitter 203, and utilizes the refraction characteristics of light in different media to evenly split a beam of light into two beams, one entering the pipe network and the other entering the photosensitive detector. The parallel beam of light is used as a reference, and the perpendicular beam of light is used for detection.

[0054] 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 .

[0055] Among them, referring to the optical fiber 204, the incident optical fiber 206 and the output optical fiber 207 are used to transmit optical signals. In this invention, referring to the optical fiber 204, the incident optical fiber 206 and the output optical fiber 207 are both quartz optical fibers.

[0056] In the present invention, the magnetic structure 210 includes four magnetic blocks, and the four magnetic blocks form a space for underwater optical signals to pass through, and the water in the space is used to test the water quality of the water body. The water inlet 208 and the water outlet 209 are respectively located above and below the magnetic structure 210, ensuring that the space formed by the magnetic attraction always has real-time updated water flow. By combining the four magnetic blocks into a closed space, and providing the water inlet 208 and the water outlet 209, the incident optical fiber 206 and the output optical fiber 207 are installed on the magnetic block through the optical fiber locking nut, ensuring that the incident optical fiber 206 and the output optical fiber 207 are aligned with the center of the optical path, and in order to ensure the appropriate optical path, the distance between the magnetic blocks is 1 cm.

[0057] An optical fiber locking nut is also installed on the outer side of the magnetic structure 210 to fix the incident optical fiber 206 or the output optical fiber 207 to the magnetic structure 210 and fix the optical fiber to the magnetic structure 210 .

[0058] The photodetector 205, also known as a photodiode, is used to receive the absorbed light transmitted from the output optical fiber 207 and the reference light transmitted from the reference optical fiber 204, and convert the light intensity into a current signal.

[0059] It should be noted that the fiber optic locking nut fixes the ends of the incident fiber 206 and the output fiber optic 207 to the magnetic block through a threaded connection or a clamping mechanism. Through the fiber optic fixing nut, the end of the fiber optic can be aligned with the magnetic space to ensure that the optical signal can accurately pass through the water body.

[0060] More specifically, in this embodiment, the design of the optical fiber locking nut may include a sealing ring or a gasket to prevent water from leaking from the connection point between the incident optical fiber 206 and the output optical fiber 207 to maintain the stability of the test water body.

[0061] In this embodiment, the top end of the cleaning component 5 is installed on the supporting frame 3 , and the bottom end extends along the sensor component 2 to the inside of the water supply network 8 .

[0062] Among them, the cleaning component 5 includes a cylindrical water pipe 501, a water spray disc 502, a connecting water pipe 503, a cleaning pump and a water storage tank. The cylindrical water pipe 501 is embedded and installed inside the optical fiber fixing structure 6. The bottom of the cylindrical water pipe 501 extends through the optical fiber fixing structure 6 to the inside of the water supply network 8 and is connected to the water spray disc 502. The top of the cylindrical water pipe 501 is connected to the cleaning pump and the water storage tank through the connecting water pipe 503; the bottom of the water spray disc 502 is provided with a plurality of rows of water spray holes set at an inclined angle.

[0063] During use, when water impurities adhere to the bottom of the incident optical fiber 206 and the output optical fiber 207 due to long-term use, the cleaning component 5 in this solution can be used to clean the incident optical fiber 206 and the output optical fiber 207 extending into the water supply network 8.

[0064] The support frame 3 is located above the water supply network 8, the bottom of the support frame 3 is connected to the sensor component 2, and the power supply component 4 is installed above the support frame 3. The power supply component 4 includes a solar panel 401, a power management module and a lithium-ion battery 402. The solar panel 401, the power management module and the lithium-ion battery 402 are circuit-connected; the solar panel 401 and the lithium-ion battery 402 are used to provide power for the system of this invention.

[0065] A monitoring system for water quality monitoring equipment of an optical fiber water supply network, comprising a control display panel 7, an optical time domain reflectometer module, a data processing circuit, a digital-to-analog conversion circuit, a data communication module, a memory, a signal amplifier and an alarm;

[0066] The optical time domain reflection module is connected to the sensing component 2 and the cleaning component 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, the circuit board and the optical time domain reflection module are all connected to the circuit between the control display panel 7 and the alarm.

[0067] In this embodiment, refer to Figure 4 When working, it is mainly powered by the solar panel 401 and stored by the lithium-ion battery. After the solar panel 401 supplies power to the LED light source 201, it begins to use the refraction characteristics of light in different media to measure water quality parameters by relying on the transmission of light (the incident optical fiber 206 and the output optical fiber 207 cooperate to transmit) and the interaction with the medium (i.e., the water body). For the 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 usually indicates the concentration of organic matter in water, and the photodetector 205 determines the content of these organic matter through spectral analysis.

[0068] After the photodetector 205 acquires and absorbs the signal, it is amplified and converted and then transmitted to the control display panel 7 to display the data.

[0069] In this embodiment, the control display panel 7 can display the current water quality data, and the power management module is responsible for providing a stable power supply for the entire system, including voltage regulation, power distribution and power protection;

[0070] The control display panel 7 is also connected to an interface module for realizing communication and connection between the system and external devices or other systems;

[0071] Data communication module, which realizes wireless communication and is used for data transmission and system networking, includes Bluetooth module, 4G or 5G module.

[0072] The data processing circuit mainly includes a microprocessor or a microcontroller, which is mainly used to execute instruction sets to complete data processing.

[0073] The digital-to-analog conversion circuit DAC converts digital signals into analog signals. The key parameters of the digital-to-analog conversion circuit are resolution, sampling rate, linearity, etc.

[0074] Signal amplifier: Since the signal after photoelectric conversion is weak, this module is used to amplify the weak electrical signal to a usable level to ensure the strength and quality of the signal during subsequent processing and transmission.

[0075] Among them, the optical time domain reflection module is an optical time domain reflectometer, which is connected to the top of the incident optical fiber 206 and the output optical fiber 207. When in use, the optical fibers are connected: the incident optical fiber 206 and the output optical fiber 207 to be detected are connected to the optical time domain reflectometer, the optical time domain reflectometer is started, the optical time domain reflectometer is sent, and the reflection signal is recorded; then, the abnormal point in the optical fiber is judged by the echo curve displayed by the optical time domain reflectometer. When an abnormal point appears, a signal is transmitted to the alarm device and transmitted to the monitoring center through the data communication module, which can realize the monitoring through the incident optical fiber 206 and the output optical fiber 207 during the monitoring process, and enhance the accuracy of the data during monitoring.

[0076] When measuring COD, the system emits ultraviolet light through an LED light source, and the light beam enters the water sample through a monochromator and an incident optical fiber 206. The organic matter in the water absorbs part of the ultraviolet light, and the light intensity after passing through the water sample will be weakened. The photodetector receives the light signal after passing through the water sample and converts it into an electrical signal. The signal amplification processor amplifies and processes the signal to obtain the value of COD. The data is then stored in a memory and can be directly transmitted to the monitoring center through a data communication module for further analysis and processing, overcoming the problems of signal interference and incomplete communication network coverage. The structure is simple and easy to install, and can ensure the timely transmission and accuracy of water quality monitoring data.

[0077] Through the above-mentioned monitoring method, the water quality in the water supply network can be monitored in real time, water quality abnormalities can be discovered and handled in time, and water supply safety can be ensured.

[0078] The monitoring device is used in combination with the system. The sensor component 2 can be implanted during the production of the water supply network 8, or it can be installed in the existing water supply network 8 by drilling holes. The installation structure is simple, which can ensure the seamless integration of the water quality monitoring device and the water supply network, and realize real-time online monitoring of water quality.

[0079] It should be noted that during the long-term operation of the incident optical fiber 206 and the output optical fiber 207, when the optical time domain reflectometer detects that water impurities are adhered to the incident optical fiber 206 and the output optical fiber 207, by controlling the operation of the cleaning pump, the water spray disk 502 can quickly clean the outside of the incident optical fiber 206 and the output optical fiber 207, thereby enhancing the accuracy of the data during monitoring. During the cleaning process, the internal water solution of the water supply network 8 is in a discharge state.

[0080] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0081] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0082] The basic principles, main features and advantages of the present invention are shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. An optical fiber water supply network water quality monitoring device, comprising a monitoring device body (1) installed on a water supply network (8), characterized in that: The monitoring device body (1) comprises a sensor component (2), a support frame (3), a power supply component (4), a cleaning component (5) and an optical fiber fixing structure (6): The sensor assembly (2) is installed on the water supply network (8), and the bottom of the sensor assembly (2) extends to the inside of the water supply network (8), and the top of the sensor assembly (2) is connected to a support frame (3); The support frame (3) is located above the water supply network (8), the bottom of the support frame (3) is connected to the sensor component (2), and the top of the support frame (3) is equipped with a power supply component (4); The top end of the cleaning component (5) is mounted on the support frame (3), and the bottom end extends along the sensor component (2) to the inside of the water supply network (8); The optical fiber fixing structure (6) comprises two optical fiber fixing nuts, and the sensor component (2) is fixedly mounted on the water supply network (8) via the optical fiber fixing nuts; The sensor assembly (2) comprises an LED light source (201), a monochromator (202), a spectroscope (203), a reference optical fiber (204), a photodetector (205), an incident optical fiber (206), an output 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 beam splitter (203), the reference optical fiber (204), and the photodetector (205) constitute an above-water optical path structure, and the incident optical fiber (206), the output optical fiber (207), the water inlet hole (208), the water outlet hole (209), and the magnetic attraction structure (210) constitute an underwater optical path structure; The cleaning assembly (5) comprises a cylindrical water pipe (501), a water spray disc (502), a connecting water pipe (503), a cleaning pump and a water storage tank; the cylindrical water pipe (501) is embedded and installed inside the optical fiber fixing structure (6); the bottom of the cylindrical water pipe (501) extends through the optical fiber fixing structure (6) to the inside of the water supply network (8) and is connected to the water spray disc (502); the top of the cylindrical water pipe (501) is connected to the cleaning pump and the water storage tank through the connecting water pipe (503); The bottom of the water spray plate (502) is provided with a plurality of rows of water spray holes arranged at an inclined angle; The incident optical fiber (206) and the outgoing optical fiber (207) are both fixedly mounted on the water supply network (8) via an optical fiber fixing structure (6); the bottoms of the incident optical fiber (206) and the outgoing optical fiber (207) are fixedly connected via a magnetic attraction structure (210); and the water inlet (208) and the water outlet (209) are respectively arranged above and below the magnetic attraction structure (210); The magnetic attraction structure (210) comprises four magnetic attraction blocks, and the four magnetic attraction blocks form a space for underwater optical signals to pass through.

2. The optical fiber water supply network water quality monitoring device according to claim 1 is characterized in that: The top of the incident optical fiber (206) is connected to a spectroscope (203), a monochromator (202) and an LED light source (201) in sequence; the top of the output optical fiber (207) is connected to a photodetector (205), and the photodetector (205) is connected to the spectroscope (203) via a reference optical fiber (204).

3. The optical fiber water supply network water quality monitoring device according to claim 1 is characterized in that: The power supply component (4) comprises a solar panel (401), a power management module and a lithium-ion battery (402), and the solar panel (401), the power management module and the lithium-ion battery (402) are circuit-connected.

4. A monitoring system based on the optical fiber water supply network water quality monitoring device according to claim 1, characterized in that: It comprises a control display panel (7), an optical time domain reflectometer module, a data processing circuit, a digital-to-analog conversion circuit, a data communication module, a memory, a signal amplifier and an alarm; The optical time domain reflectometer module is connected to the sensor component (2) and the cleaning component (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, the circuit board and the optical time domain reflectometer module are all connected to the circuit between the control display panel (7) and the alarm.

5. The monitoring system of the optical fiber water supply network water quality monitoring equipment according to claim 4 is characterized in that: The optical time domain reflectometer module is an optical time domain reflectometer, and the optical time domain reflectometer is signal-connected to the sensor component (2).

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