CN112946216A - Intelligent water quality monitoring system - Google Patents
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Abstract
The invention discloses an intelligent water quality monitoring system, which comprises: the collection module is used for detecting and collecting a water sample; the positioning module is used for positioning the position of the water quality to be detected by the acquisition module; the detection container is used for accommodating a water sample to be detected; the water quality detection module is used for measuring one or more of pH value, oxygen content and temperature of the water quality; the water sample judging device is used for judging a sample model to which the detected water quality belongs and acquiring a light source and a spectrum corresponding to the water quality to be detected; the cloud server stores a preset water quality sample model database, and the preset water quality sample model is a COD (chemical oxygen demand) sample model; the control module is also used for preprocessing the spectrum to obtain a measured water quality sample model, and transmitting the measured water quality sample model to the cloud server through the wireless communication module; the invention can realize the synchronous on-line detection of various water quality parameters, timely acquire and update the water quality detection result and the water quality sample model, and can ensure the timeliness and the accuracy of water quality monitoring.
Description
Technical Field
The invention relates to the technical field of water quality monitoring, in particular to an intelligent water quality monitoring system.
Background
At present, the conditions of stealing, draining and leaking of each river are serious, the water pollution is increasingly serious, and the importance of water quality monitoring work is particularly prominent. The water quality monitoring is mostly carried out in a manual operation mode, the efficiency is low, the timeliness is poor, the accuracy rate is difficult to guarantee, the situation of stealing, draining and draining of the river is difficult to supervise and sample at any time, and the method is a main factor for hindering the river pollution traceability work.
The existing detection instrument or equipment can only measure a single parameter and cannot realize online detection. The method is not beneficial to data integration, and the comprehensive evaluation can be completed only by combining multiple devices, so that the cost is high. In addition, the existing instrument and equipment cannot be automatically cleaned, the water sample container inevitably has residues on the container wall along with the increase of the service time, if the water sample container cannot be cleaned in time, the detection result is directly influenced, and the water quality monitoring data can only be checked on site, so that the remote user needing to check the data is inconvenient.
Therefore, it is an urgent need to solve the problem of providing an intelligent water quality monitoring system.
Disclosure of Invention
In view of this, the invention provides an intelligent water quality monitoring system, which can monitor in a high-energy real-time manner, effectively improve the working efficiency and ensure the timeliness and accuracy of water quality monitoring.
In order to achieve the purpose, the invention adopts the following technical scheme:
an intelligent water quality monitoring system, comprising:
the collection module is provided with a collection probe and is used for detecting and collecting a water sample;
the positioning module is used for positioning the position of the water quality to be detected by the acquisition module;
the detection container is used for accommodating a water sample to be detected;
the water quality detection module is arranged in the water body in the detection container through a floating ball and is used for measuring one or more of the pH value, the oxygen content and the temperature of the water quality;
the water sample judging device is used for judging a sample model to which the detected water quality belongs, and comprises spectrum water quality detection units, wherein the spectrum water quality detection units are arranged on two sides in the detection container and are used for acquiring light sources and spectrums corresponding to the water quality to be detected;
the system comprises a cloud server, a water quality analysis module and a water quality analysis module, wherein the cloud server stores a preset water quality sample model database, and the preset water quality sample model is a COD (chemical oxygen demand) sample model;
the control module, collection module, orientation module, water quality testing module and water sample judge the ware all with control module connects, control module still is used for spectrum pretreatment, obtains the water quality sample model that has surveyed, transmits through wireless communication module to the cloud ware.
Furthermore, an alarm module is arranged in the cloud server, a database corresponding to the water quality parameter indexes is stored in the cloud server, different water quality parameter indexes correspond to different preset values and are used for analyzing the collected water quality data, when the water quality data are abnormal, alarm information is sent to the remote checking terminal, and a water quality monitoring result and a corresponding water source position of the water quality monitoring result are sent to the remote checking terminal.
Further, the cloud server is connected to the remote viewing terminal through a wireless communication module, and the remote viewing terminal comprises a PC control terminal and a mobile control terminal.
Further, the water quality detection module includes: a pH sensor, a dissolved oxygen sensor and a temperature sensor.
Furthermore, an ultrasonic cleaning module for cleaning the detection container is arranged in the detection container, and the ultrasonic cleaning module is connected with the control module.
Furthermore, the spectrum water quality detection unit comprises a light source, a light receiving plate and a photoelectric detection module; the light source and the light receiving plate are arranged at the side wall of the detection container in an opposite mode, and the light receiving plate is used for receiving light emitted by the light source; the light source receiving plate is electrically connected with the photoelectric detection module;
the photodetection module includes: the circuit comprises a current-voltage conversion circuit, an amplifying circuit and a filter circuit;
the current-voltage conversion circuit is used for converting the current signal generated by the light receiving plate into a corresponding voltage signal;
the amplifying circuit is used for amplifying the voltage signal by a preset multiple and then outputting the voltage signal; the filter circuit is used for filtering interference signals of the voltage amplification signals output by the amplification circuit and then outputting stable voltage signals.
Further, the light source comprises a monochromatic LED lamp emitting infrared light, ultraviolet light and visible light;
the light receiving plate includes a Si-based phototransistor for receiving infrared light and visible light and a GaN-based ultraviolet detector.
Further, still include the unmanned aerial vehicle body, be equipped with on the unmanned aerial vehicle body collection module and image module, the unmanned aerial vehicle body with the control module electricity is connected, control module is used for according to predetermineeing the line of movement and predetermineeing the control of moving time the unmanned aerial vehicle body removes.
Furthermore, the image module comprises a camera, an image acquisition card and an image memory which are electrically connected in sequence, the camera is used for acquiring image information of the environment in real time, the image acquisition card is used for receiving the image information sent by the camera and carrying out compression processing, and the image memory is used for receiving and storing the image information sent by the image acquisition card.
According to the technical scheme, compared with the prior art, the invention discloses an intelligent water quality monitoring system, which is characterized in that a data index and a geographical position of currently measured water quality are obtained through a water quality detection module and a positioning module, various parameters of the water quality are transmitted to a cloud server, and a multi-platform (PC, tablet and smart phone) water quality real-time monitoring system is constructed by means of data transmission, storage and analysis technologies of the cloud server. The water quality parameters obtained by detection are matched with the relevant information in the database stored by the cloud server to obtain the specific parameters of the water quality at the current geographical position, so that the water quality database can obtain and update the water quality detection result in time, and a water quality detector can conveniently take corresponding measures.
The system manager can acquire the state information of the water quality purification equipment at any time and any place, comprehensively, accurately and in real time, can realize automatic alarm and prompt, can position the water quality position in time, provides information reference for later-stage water quality purification management, and improves the efficiency and the automation level.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram provided by the present invention.
Fig. 2 is a schematic structural diagram of a water quality detection process provided by the invention.
Wherein:
1-an acquisition module; 2-a positioning module; 3-a water quality detection module; 4-water sample judging device; 5-a cloud server; 6-a control module; 7-PC control end; 8-moving a control end; 9-an ultrasonic cleaning module; 10-an image module;
41-spectrum water quality detection unit; 411-a light source; 412-a light receiving plate; 413-photoelectric detection module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention discloses an intelligent water quality monitoring system, which is shown in a figure 1-2 and comprises:
the system comprises an acquisition module 1, wherein the acquisition module 1 is provided with an acquisition probe and is used for detecting and acquiring a water sample;
the positioning module 2 is used for positioning the position of the water quality to be detected by the acquisition module 1;
the detection container is used for accommodating a water sample to be detected;
water quality testing module 3, water quality testing module 3 includes: the device comprises a PH value sensor, a dissolved oxygen sensor and a temperature sensor, wherein each sensor is arranged in a water body in a detection container through a floating ball and is used for measuring one or more of the pH value, the oxygen content and the temperature of water quality; the pH value sensor is a pH detection device based on a glass electrode method, and a detection electrode detects the pH value of liquid; the temperature sensor can be an infrared-based temperature detection device, and an infrared probe detects the temperature of the liquid;
the water sample judging device 4 is used for judging a sample model to which the detected water quality belongs, the water sample judging device 4 comprises a spectrum water quality detecting unit 41, and the spectrum water quality detecting unit 41 is arranged on two sides in the detection container and is used for acquiring a light source and a spectrum corresponding to the water quality to be detected;
the cloud server 5 is used for storing a preset water quality sample model database, and the preset water quality sample model is a COD (chemical oxygen demand) sample model;
It should be noted that the wireless communication module includes, but is not limited to, any one or more of a 5G communication module, a 4G communication module, an internet of things communication module, a WIFI communication module, and a GSM communication module.
Water sample models include, but are not limited to: a river water sample model, a estuary water sample model, a lake (reservoir) water sample model, a bay water sample model, an underground water sample model and the like.
The control module may be embodied as any suitable chip or integrated circuit having certain logic operation capabilities, and may include one or more processors and memory.
In some embodiments, signals acquired by the spectral water quality detection unit, the PH sensor, the dissolved oxygen sensor and the temperature sensor are analog signals, and a control module generally needs to input digital signals, so as to ensure that the control module processes the acquired signals, an a/D acquisition module may be further included; the A/D acquisition module is provided with an analog signal input port, and after analog-to-digital conversion is carried out on the analog voltage signals, corresponding digital signals can be input into the control module through a GPIO interface of the control module and then are subjected to subsequent processing by the control module.
In one embodiment, an alarm module is arranged in the cloud server 5, the cloud server 5 stores a database corresponding to water quality parameter indexes, different water quality parameter indexes correspond to different preset values and are used for analyzing collected water quality data, when the water quality data are abnormal, alarm information is sent to the remote checking terminal, and a water quality monitoring result and a water source position corresponding to the water quality monitoring result are sent to the remote checking terminal.
Advantageously, the cloud server 5 is connected to a remote viewing terminal through a wireless communication module, and the remote viewing terminal includes a PC control terminal 7 and a mobile control terminal 8.
In one embodiment, the detection container is a detection tank, some residual substances may exist in the detection tank after a certain time, in order to ensure the accuracy of the water quality sampling result, the corresponding pipeline and the detection tank should be cleaned before detection, an ultrasonic cleaning module 9 for cleaning the detection container is arranged in the detection container, the ultrasonic cleaning module 9 is connected with the control module 6, and the ultrasonic cleaning module can be implemented based on an ultrasonic transducer and used as a cleaning device for generating ultrasonic waves with certain frequency and intensity.
In one embodiment, the spectral water quality detection unit is the most important detection unit, and can realize detection of various water quality indexes or parameters, such as chromaticity, turbidity, COD, TOC, nitrate nitrogen, UV 254 absorption coefficient and the like;
the principle is as follows: the method for detecting water quality by water sample absorption spectrum analysis is characterized by that the electromagnetic radiation can be discontinuously interacted with atoms and molecules to produce characteristic absorption or emission distribution, and because many organic substances in the water have the characteristics of strongly absorbing light radiation, it can be used for determining COD, forming COD model and judging the model to which the detected water quality belongs. When the measured water quality sample model is matched with a preset water quality sample model database in the cloud server, judging that the measured water quality sample model is a first preset water sample model; and when the measured water quality sample model is not matched with the preset water quality sample model database, the cloud server stores the measured water quality sample model to the preset water quality sample model database and judges that the measured water quality sample model is a second preset water sample model.
Specifically, the spectrum water quality detection unit 41 includes a light source 411, a light receiving plate 412 and a photoelectric detection module 413; the light source 411 includes a monochromatic LED lamp emitting infrared light, ultraviolet light, and visible light;
the light source 411 is disposed at a side wall of the detection container opposite to the light receiving plate 412, and the light receiving plate 412 is used for receiving light emitted by the light source 411; the light source receiving board 412 is electrically connected with the photoelectric detection module 413;
the photodetection module 413 includes: the circuit comprises a current-voltage conversion circuit, an amplifying circuit and a filter circuit; the current-voltage conversion circuit is used for converting the current signal generated by the light receiving plate 412 into a corresponding voltage signal; the amplifying circuit is used for amplifying the voltage signal by a preset multiple and then outputting the voltage signal; the filter circuit is used for filtering interference signals of the voltage amplification signals output by the amplification circuit and then outputting stable voltage signals; the finally output stable voltage signal can be transmitted to the control module, and the control module performs corresponding spectrum analysis or forwards the stable voltage signal to other cloud-end platforms through the communication module for spectrum analysis.
The light receiving plate 412 includes a Si-based phototransistor for receiving infrared light and visible light and a GaN-based ultraviolet detector.
The single-color LED used as the light source in the embodiment has the characteristics of small volume, low driving voltage, low energy consumption, high brightness, long service life, low cost and the like, and can be used in a more complex environment.
After the three types of light are adopted for spectral analysis, the principle of obtaining each index is detected:
1. chroma (lightness of shade of water sample): in this embodiment, the color is detected as a true color of the water sample. I.e. the colour of the water sample after removal of suspended matter. The spectrum water quality detection unit provided by the embodiment of the invention measures the chromaticity by detecting the absorbance of visible light.
2. Turbidity (TURB): refers to the degree of obstruction of light by the solution, including scattering of light by suspended matter and absorption of light by solute molecules. The spectral water quality detection unit provided by the embodiment of the invention measures turbidity by detecting the absorption of light by solute molecules.
The measurement of turbidity is interfered by organic matters in the water sample, but the absorption peak of the organic matters is generally 260 nm-300 nm (not belonging to the wavelength range of infrared light). Therefore, when turbidity is detected by using infrared light, the influence of the light-absorbing substance dissolved in water can be minimized.
3. Chemical Oxygen Demand (COD): refers to the concentration of reducing substances (mainly organic substances) which are easily oxidized by strong oxidizing agents in the water body. Because various reductive organic matters in water have characteristic absorption to ultraviolet light. Therefore, based on the selective absorption principle, in this embodiment, the standard solution may be used to establish a relationship between the absorbance value at a specific wavelength and the COD concentration value, so as to calculate the COD concentration in the water sample to be tested according to the absorbance value of the ultraviolet light at the specific wavelength.
4. Total Organic Carbon (TOC): refers to the total carbon content of various organic pollutants with solubility and suspension in water. The total organic carbon has similar characteristics, and in this embodiment, the TOC content can be indirectly obtained by detecting the ultraviolet absorbance of the water sample at a certain wavelength by a method similar to COD detection.
5. Nitrate nitrogen: is the decomposition product formed by the action of inorganic compound in nitrogen-containing compounds such as nitrite nitrogen, ammonia nitrogen and the like in water under the condition of oxygen.
In this example, the spectral water quality detecting unit performs detection of the nitrate nitrogen content using the characteristic of absorbance of nitrate ions at a wavelength of 220 nm.
According to the embodiment of the invention, reagents, heating reflux and the like are not needed, the sample is pollution-free, and a plurality of parameters such as absorption spectrum, COD, TOC, nitrate nitrogen, chromaticity, turbidity SS, temperature, PH value and the like in water can be rapidly and synchronously measured.
In one embodiment, the unmanned aerial vehicle further comprises an unmanned aerial vehicle body, the unmanned aerial vehicle body is electrically connected with the control module 6, and the control module 6 is used for controlling the unmanned aerial vehicle body to move according to a preset moving route and preset moving time. Be equipped with collection module 1 and image module 9 on the unmanned aerial vehicle body, image module 9 is used for gathering the image of water sample environment.
Specifically, the image module 10 includes a camera, an image acquisition card and an image memory, which are electrically connected in sequence, the camera is used for acquiring image information of an environment in real time, the image acquisition card is used for receiving and compressing the image information sent by the camera, and the image memory is used for receiving and storing the image information sent by the image acquisition card.
The image module is adopted to collect the environmental image of the water body in real time, the positioning module is used to position the monitored geographical position in real time, and an alarm is given when the measured water quality environmental parameter does not meet the set threshold value; utilize unmanned aerial vehicle to realize conveniently gathering the collection to quality of water sample in the water of the quality of water sample of arbitrary position department in water, do not need artificial collection of launching, overcome the problem of the collection degree of difficulty that geographical position brought.
Furthermore, an aerator and a spraying agent are also arranged on the unmanned aerial vehicle body, and the aerator is used for adjusting water quality, promoting water convection, increasing dissolved oxygen in pool water and emitting toxic gas; the spraying agent is used for spraying quicklime, a photosynthetic bacteria preparation or a degradable water quality improver.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An intelligent water quality monitoring system, comprising:
the water sample collecting device comprises a collecting module (1), wherein the collecting module (1) is provided with a collecting probe and is used for detecting and collecting a water sample;
the positioning module (2) is used for positioning the position of the water quality to be detected by the acquisition module (1);
the detection container is used for accommodating a water sample to be detected;
the water quality detection module (3) is arranged in the water body in the detection container through a floating ball and is used for measuring one or more of the pH value, the oxygen content and the temperature of the water quality;
the water sample judging device (4) is used for judging a sample model to which the detected water quality belongs, the water sample judging device (4) comprises spectrum water quality detecting units (41), and the spectrum water quality detecting units (41) are arranged on two sides in the detection container and are used for acquiring light sources and spectrums corresponding to the water quality to be detected;
the system comprises a cloud server (5), wherein a preset water quality sample model database is stored in the cloud server (5), and the preset water quality sample model is a COD (chemical oxygen demand) sample model;
control module (6), collection module (1), orientation module (2), water quality testing module (3) and water sample judgement ware (4) all with control module (6) are connected, control module still is used for obtaining the spectrum preliminary treatment measured water quality sample model, transmits to through wireless communication module cloud server (5).
2. The intelligent water quality monitoring system according to claim 1, wherein an alarm module is arranged in the cloud server (5), the cloud server (5) stores a database corresponding to water quality parameter indexes, different water quality parameter indexes correspond to different preset values and are used for analyzing the collected water quality data, when the water quality data are abnormal, alarm information is sent to the remote checking terminal, and a water quality monitoring result and a corresponding water source position are sent to the remote checking terminal.
3. The intelligent water quality monitoring system according to claim 2, wherein the cloud server (5) is connected to the remote viewing terminal through the wireless communication module, and the remote viewing terminal comprises a PC control terminal (7) and a mobile control terminal (8).
4. The intelligent water quality monitoring system of claim 1, wherein the water quality detection module comprises: a pH sensor, a dissolved oxygen sensor and a temperature sensor.
5. The intelligent water quality monitoring system according to claim 1, wherein an ultrasonic cleaning module (9) for cleaning the detection container is arranged in the detection container, and the ultrasonic cleaning module (9) is connected with the control module (6).
6. The intelligent water quality monitoring system according to claim 1, wherein the spectrum water quality detection unit (41) comprises a light source (411), a light receiving plate (412) and a photoelectric detection module (413);
the light source (411) is arranged at the side wall of the detection container opposite to a light receiving plate (412), and the light receiving plate (412) is used for receiving light emitted by the light source (411); the light source receiving board (412) is electrically connected with the photoelectric detection module (413);
the photodetection module (413) comprises: the circuit comprises a current-voltage conversion circuit, an amplifying circuit and a filter circuit; the current-voltage conversion circuit is used for converting a current signal generated by the light receiving plate (412) into a corresponding voltage signal; the amplifying circuit is used for amplifying the voltage signal by a preset multiple and then outputting the voltage signal; the filter circuit is used for filtering interference signals of the voltage amplification signals output by the amplification circuit and then outputting stable voltage signals.
7. An intelligent water quality monitoring system according to claim 6, wherein the light source (411) comprises a monochromatic LED lamp emitting infrared light, ultraviolet light and visible light;
the light receiving plate (412) includes a Si-based phototransistor for receiving infrared light and visible light and a GaN-based ultraviolet detector.
8. The intelligent water quality monitoring system according to claim 1, further comprising an unmanned aerial vehicle body, wherein the unmanned aerial vehicle body is provided with the acquisition module (1) and the image module (10), and the image module (10) is used for acquiring images of a water sample environment.
9. The intelligent water quality monitoring system according to claim 8, wherein the unmanned aerial vehicle body is electrically connected with the control module (6), and the control module (6) is used for controlling the unmanned aerial vehicle body to move according to a preset moving route and a preset moving time.
10. The intelligent water quality monitoring system according to claim 9, wherein the image module (10) comprises a camera, an image acquisition card and an image memory, which are electrically connected in sequence, wherein the camera is used for acquiring image information of the environment in real time, the image acquisition card is used for receiving and compressing the image information sent by the camera, and the image memory is used for receiving and storing the image information sent by the image acquisition card.
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