CN110646576A - Water quality safety monitor - Google Patents
Water quality safety monitor Download PDFInfo
- Publication number
- CN110646576A CN110646576A CN201910972851.5A CN201910972851A CN110646576A CN 110646576 A CN110646576 A CN 110646576A CN 201910972851 A CN201910972851 A CN 201910972851A CN 110646576 A CN110646576 A CN 110646576A
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- CN
- China
- Prior art keywords
- light source
- daphnia
- water quality
- quality safety
- annular baffle
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 241000238578 Daphnia Species 0.000 claims abstract description 52
- 239000011521 glass Substances 0.000 claims abstract description 49
- 125000004122 cyclic group Chemical group 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 230000033001 locomotion Effects 0.000 abstract description 9
- 238000009434 installation Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000006399 behavior Effects 0.000 description 8
- 230000009182 swimming Effects 0.000 description 8
- 238000012544 monitoring process Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 231100000331 toxic Toxicity 0.000 description 6
- 230000002588 toxic effect Effects 0.000 description 5
- 231100000419 toxicity Toxicity 0.000 description 5
- 230000001988 toxicity Effects 0.000 description 5
- 230000001678 irradiating effect Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 241000282414 Homo sapiens Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012258 culturing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003542 behavioural effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 231100000584 environmental toxicity Toxicity 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000029305 taxis Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
- G01N33/186—Water using one or more living organisms, e.g. a fish
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
The invention provides a water quality safety monitor, which utilizes a light source with the wavelength of 450-490 nm to irradiate daphnia, wherein the emitted light is blue light under the wavelength, and the daphnia can absorb the light with the wavelength more strongly, so that when the daphnia is shot by an industrial camera, an image is easier to distinguish from a background, and the water quality safety monitor is convenient for the calculation and analysis of a computer. According to the invention, the guide rod is arranged on the end face of the barrel body, the guide hole is correspondingly arranged on the cover plate, the guide rod can move along the guide hole, the light source can slide into the barrel body or slide out of the barrel body through the movement of the cover plate, the industrial camera and the incubator can be separately connected through the arrangement, the installation and maintenance of the industrial camera are convenient, and the incubator can slide along the guide rod, so that the industrial camera can be ensured to vertically penetrate through the transparent glass and shoot daphnia inside the incubator.
Description
Technical Field
The invention relates to the technical field of environment, water safety and water quality early warning, in particular to a water quality safety monitor.
Background
With the continuous improvement of the understanding of the importance of people on environmental safety, the biological toxicity monitoring plays an increasingly large role in the process of safety assessment of the environment. By monitoring the biological toxicity at different levels, the problem of comprehensive environmental toxicity which cannot be solved by conventional chemical monitoring can be solved, and the biological toxicity effect of pollutants can be evaluated. The biological toxicity monitoring by using aquatic organisms as indicator organisms can directly reflect the influence and harm degree of water environment quality change on the organisms, and is the most direct and effective means for realizing the purpose of water environment monitoring.
Some species in aquatic organisms are very sensitive to changes of external environments (such as discharge of toxic and harmful substances), the sensitivity of the aquatic organisms is far higher than that of human beings, and warning can be given before the toxic and harmful substances damage human bodies, so that the water supply safety, especially the safety of drinking water sources, is protected. Taking daphnia in aquatic organisms as an example, when the daphnia is damaged by toxic and harmful substances, the movement behaviors such as swimming speed, swimming height, swimming track shape, number of swimming tracks in unit time, growth speed, positions appearing in an area (gathering to an area with low concentration of toxic and harmful substances due to taxis and avoidances) and the like all change, and the behavior changes can be used for representing the water toxicity.
However, the body of the daphnia is in a semitransparent state, when the behavior change of the daphnia is shot by a camera under the irradiation of a common light source and then transmitted to a computer, the image and the background are not easy to distinguish, which is not beneficial to the calculation and analysis of the computer.
Disclosure of Invention
In view of this, the invention provides a water quality safety monitor which is easy to distinguish an image from a background and convenient for computer calculation and analysis when an industrial camera shoots a daphnia.
The technical scheme of the invention is realized as follows: the invention provides a water quality safety monitor, which comprises a monitor body, and further comprises an incubator, an industrial camera and a light source, wherein the incubator is positioned in the monitor body and used for cultivating daphnia, the light source is positioned in the monitor body and used for irradiating the daphnia in the incubator, the industrial camera is positioned in the monitor body and used for shooting the daphnia in the incubator, and the emission wavelength of the light source is 450-490 nm.
On the basis of the technical scheme, preferably, the incubator comprises a cover plate and transparent glass, the light source is in a circular ring shape, one end of the light source is fixedly connected with the cover plate, the transparent glass cover is arranged at the other end of the light source, a chamber for culturing the daphnia is formed by enclosing the cover plate, the light source and the transparent glass, the light source is used for irradiating the daphnia in the chamber, and the industrial camera shoots the daphnia in the chamber through the transparent glass.
Further preferred, still including locating the internal staving of monitor, the industry camera is installed in the staving, monitor body lateral wall corresponds staving department and is equipped with the opening, the staving corresponds open-ended terminal surface and is equipped with the guide arm, it is equipped with the guide hole to correspond on the apron, the apron is located outside the guide arm and slides so that the light source slides in the staving or outside the roll-off staving along the guide arm through the guide hole cover.
Preferably, the guide rod is provided with a groove at the periphery, the side wall of the guide hole is provided with a mounting hole, a ball screw is mounted in the mounting hole, and when the guide rod slides along the guide hole, a steel ball of the ball screw can be clamped in the groove.
Further preferably, the lamp further comprises a first annular baffle and a second annular baffle, the first annular baffle is installed on one end face of the light source, the transparent glass cover is arranged on the end face of the light source and located in the first annular baffle, and the second annular baffle is clamped on the first annular baffle and abuts against the transparent glass.
Further preferably, an annular fixing block is fixedly arranged in the first annular baffle, a recess is formed in the inner wall of the annular fixing block, the distance between the annular fixing block and the end face of the light source is slightly larger than the thickness of the second annular baffle, a protrusion is arranged on the outer wall of the second annular baffle corresponding to the recess, and the protrusion can be clamped in the recess.
Further preferably, the light source device further comprises a sealing ring, wherein the sealing ring is embedded in the inner wall of the light source, and the sealing ring seals the contact position of the transparent glass and the light source.
Further preferably, a water inlet hole is formed in the part, located in the transparent glass, of the cover plate, and the water inlet hole is used for feeding water into the incubator.
Further preferred, still include the cyclic annular organic glass board of black, the cyclic annular organic glass board cover of black is located in the barrel, when the light source slided into the barrel, light source outer wall and the cyclic annular organic glass board wall butt of black.
Further preferably, the light source is coaxially and fixedly arranged in the barrel body to vertically shoot daphnia in the incubator.
Compared with the prior art, the water quality safety monitor has the following beneficial effects:
(1) according to the water quality safety monitor, the light source with the wavelength of 450-490 nm is used for irradiating the daphnia, the emitted light is blue light under the wavelength, and the daphnia can absorb the light with the wavelength more strongly, so that when the daphnia is shot by an industrial camera, an image is easier to distinguish from a background, and the water quality safety monitor is convenient for computer calculation and analysis.
(2) According to the invention, the guide rod is arranged on the end face of the barrel body, the guide hole is correspondingly arranged on the cover plate, the guide rod can move along the guide hole, the light source can slide into the barrel body or slide out of the barrel body through the movement of the cover plate, the industrial camera and the incubator can be separately connected through the arrangement, the installation and maintenance of the industrial camera are convenient, and the incubator can slide along the guide rod, so that the industrial camera can be ensured to vertically penetrate through the transparent glass and shoot daphnia inside the incubator;
(3) the culture device is also provided with a first annular baffle and a second annular baffle, wherein the second annular baffle is clamped in the first annular baffle and tightly abuts against the transparent glass, when the culture device is assembled, the transparent glass is firstly covered on one end face of the light source, then the second annular baffle is clamped in the first annular baffle, and at the moment, the second annular baffle can tightly abut against the transparent glass, so that the culture device is convenient to assemble.
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 some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a perspective view of a water quality safety monitor according to the present invention;
FIG. 2 is an internal perspective view of the water quality safety monitor of the present invention;
FIG. 3 is a perspective view of the bowl and incubator of the present invention;
FIG. 4 is an interior perspective view of the bucket body of the present invention;
FIG. 5 is a perspective view of the incubator of the present invention;
FIG. 6 is a perspective view of a first annular baffle of the present invention;
FIG. 7 is a perspective view of the incubator and second annular baffle of the present invention;
fig. 8 is a perspective view of the wave ball screw of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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 obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1 to 8, the invention provides a water quality safety monitor, which comprises a monitor body 1, a culture device 2, an industrial camera 3, a light source 4, a barrel body 5, a guide rod 6, a guide hole 7 and a black annular organic glass plate 8.
The monitor body 1 is used for monitoring water quality, specifically, a daphnia incubator is arranged in the monitor body 1, water to be detected is added into the water quality incubator, then daphnia is added into the daphnia incubator, then a camera is used for shooting movement behaviors in the daphnia incubator, such as swimming speed, swimming height, swimming track shape, the number of swimming tracks in unit time, growth speed and positions appearing in a region, the movement behaviors of the daphnia are changed due to the fact that the daphnia tends to avoid harm and gathers to a region with low concentration of toxic and harmful substances, the movement behaviors of the daphnia in normal water and the movement behaviors of the daphnia in the water to be detected are shot through the camera, shot photos are transmitted to a computer for analysis and processing, and the toxicity of the water quality to be detected can be judged through comparison.
The incubator 2 is used for cultivating the daphnia, specifically, the water to be measured and the daphnia are added into the incubator 2 for cultivation, and the incubator 2 can be a barrel-shaped container. Specifically, the incubator 2 comprises a cover plate 21 and a transparent glass 22, the light source 4 is in a circular ring shape, the specific light source comprises a circular ring-shaped shell and an LED lamp positioned in the shell, the LED lamp emits light to irradiate the daphnia in the incubator 2, one end of the light source 4 is fixedly connected with the cover plate 21, the transparent glass 22 is covered at the other end of the light source 4, the transparent glass 22 can be covered at the other end of the light source 4 in a screw connection mode, a chamber for culturing the daphnia is formed by enclosing the light source 4, the cover plate 21 and the transparent glass 22, water to be detected and the daphnia are added into the chamber, and the daphnia can be cultured; the industrial camera 3 shoots the daphnia in the cavity through the transparent glass 22, and the inner side surface of the annular light source 4 irradiates the daphnia, so that the daphnia can be shot more clearly.
An industrial camera 3 for photographing daphnia inside the incubator 2, a high resolution camera may be practically used.
The light source 4 is used for irradiating daphnia in the incubator 2, the industrial camera 3 can shoot movement behaviors of the daphnia more clearly under the irradiation of the light source 4, due to the fact that the body of the daphnia is in a semitransparent state, when the industrial camera 3 shoots behavioral changes of the daphnia and transmits the changes to the computer again under the irradiation of a common light source, images and the background are not easy to distinguish, and therefore calculation and analysis of the computer are not facilitated.
The barrel body 5 is used for providing an installation space for the industrial camera 3, specifically, the barrel body 5 is arranged in the monitor body 1, the axis of the barrel body 5 is the same as that of the incubator 2, the industrial camera 3 is coaxially arranged in the barrel body 5, and the industrial camera 3 is used for shooting daphnia inside the incubator 2; meanwhile, an opening is formed in the side wall of the monitor body 1 corresponding to the barrel body 5, a guide rod 6 is arranged on the end face of the barrel body 5 corresponding to the opening, a guide hole 7 is correspondingly formed in the cover plate 21, the cover plate 21 is sleeved outside the guide rod 6 through the guide hole 7, the guide rod 6 can move along the guide hole 7, the light source 4 can slide into the barrel body 5 or slide out of the barrel 5 through the movement of the cover plate 21, the industrial camera 3 and the incubator 2 can be connected in a separated mode through the arrangement, the industrial camera 3 can be conveniently installed and maintained, meanwhile, the incubator 2 can slide along the guide rod 6, and therefore the industrial camera 3 can be guaranteed to vertically penetrate through the transparent glass 22 and shoot daphnia in the incubator 2.
Further, still set up a recess 61 in the guide arm 6 periphery, set up the mounting hole at guide hole 7 lateral wall, install ripples pearl screw 62 in the mounting hole, when guide arm 6 slided along guide hole 7, the steel ball and the spring of ripples pearl screw 62 all are compressed, when guide arm 6 removed to ripples pearl screw 62 and recess 61 parallel and level, the steel ball of ripples pearl screw 62 was under the pressure effect of spring, and the steel ball is pushed up in recess 61, fixes a position between guide arm 6 and culture apparatus 2 in proper order, and recess 61 is the arc wall in reality.
In order to facilitate the installation of the incubator 2, a first annular baffle 23 and a second annular baffle 24 are further arranged, the first annular baffle 23 is fixedly installed on the end face of one side of the light source 4 far away from the cover plate 21, the transparent glass 22 is covered on the end face of the light source 4 and is positioned in the first annular baffle 23, and the second annular baffle 24 is clamped in the first annular baffle 23 and tightly abuts against the transparent glass 22; specifically, when the incubator 2 is assembled, the transparent glass 22 is covered on one end surface of the light source 4, and then the second annular baffle 24 is clamped in the first annular baffle 23, and at this time, the second annular baffle 24 can tightly abut against the transparent glass 22, so that the incubator 2 can be assembled.
In order to conveniently clamp the second annular baffle plate 24 in the first annular baffle plate 23, an annular fixing block 25 may be fixedly disposed in the first annular baffle plate 23, a plurality of recesses 26 are disposed at intervals on an inner wall of the annular fixing block 25, a protrusion 27 is disposed at a position corresponding to the recess 26 on the outer periphery of the second annular baffle plate 24, a distance between an end surface of the annular fixing block 25 close to the light source 4 and an end surface of the light source 4 is slightly greater than a thickness of the second annular baffle plate 24, when the second annular baffle plate 24 is mounted, the protrusion 27 of the second annular baffle plate 24 is clamped in the first annular baffle plate 23 along the recess 26, and then the second annular baffle plate 24 is rotated, so that the first annular baffle plate 23 can be tightly clamped in the first annular baffle plate 23 by the annular fixing block 25, and the transparent glass 22 can be abutted against the other end of the light source 4.
In order to ensure the sealing performance between the transparent glass 22 and the end face of the light source 4, a sealing ring 28 is further provided, specifically, a sealing ring 28 is embedded in the inner wall of the light source 4 near the end opening thereof, when the transparent glass 22 is covered on one side of the light source 4, the sealing ring 28 can seal the contact position between the transparent glass 22 and the light source 4, so that the sealing performance between the transparent glass 22 and the light source 4 can be ensured.
Furthermore, a water inlet hole 28 is arranged on the part of the cover plate 21 positioned in the transparent glass 22, the water inlet hole 28 is communicated with an external water source, and water to be measured is introduced into the incubator 2 through the water inlet hole 28.
Still include the cyclic annular organic glass board of black 8, the cyclic annular organic glass board of black 8 covers is located in staving 5, slide along guide arm 6 when apron 21 to make light source 4 when sliding into staving 5, light source 4 periphery just with 8 inner walls looks butt of the cyclic annular organic glass board of black, can play the effect of similar light screen through setting up cyclic annular organic glass board 8 of black, can guarantee that the light source sent concentrates the intracavity of shining and enclosing formation cultivation daphnia between light source 4, apron 21 and clear glass 22.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a water quality safety monitor, its includes monitor body (1), its characterized in that: still include culture apparatus (2), industry camera (3) and light source (4), culture apparatus (2) are located monitor body (1) and are used for cultivateing the daphnia, light source (4) are located monitor body (1) and are used for shining culture apparatus (2) daphnia, and industry camera (3) are located monitor body (1) and are used for shooing culture apparatus (2) daphnia, the emission wavelength of light source (4) is 450 ~ 490 nm.
2. The water quality safety monitor according to claim 1, wherein: incubator (2) include a apron (21) and a clear glass (22), light source (4) are the ring form, the one end of light source (4) links firmly apron (21), and the other end of light source (4) is located to clear glass (22) lid, encloses between apron (21), light source (4) and clear glass (22) and closes the cavity that forms cultivation daphnia, and light source (4) are used for shining the interior daphnia of cavity, and industry camera (3) see through clear glass (22) shoots the interior daphnia of cavity.
3. The water quality safety monitor according to claim 2, wherein: still including locating staving (5) in monitor body (1), install in staving (5) industrial camera (3), monitor body (1) lateral wall corresponds staving (5) department and is equipped with the opening, staving (5) correspond the open-ended terminal surface and are equipped with guide arm (6), it is equipped with guide hole (7) to correspond on apron (21), apron (21) are located outside guide arm (6) and slide so that light source (4) slide in staving (5) or outside roll-off staving (5) along guide arm (6) through guide hole (7) cover.
4. A water quality safety monitor according to claim 3, wherein: the guide arm (6) periphery still is equipped with a recess (61), guide hole (7) lateral wall is equipped with the mounting hole, install ripples pearl screw (62) in the mounting hole, when guide arm (6) slided along guide hole (7), the steel ball card of ripples pearl screw (62) can be located in recess (61).
5. The water quality safety monitor according to claim 2, wherein: the LED lamp further comprises a first annular baffle (23) and a second annular baffle (24), wherein the first annular baffle (23) is installed on one end face of the light source (4), the transparent glass (22) covers the end face of the light source (4) and is located in the first annular baffle (23), and the second annular baffle (24) is clamped in the first annular baffle (23) and abuts against the transparent glass (22).
6. The water quality safety monitor according to claim 5, wherein: first cyclic annular baffle (23) internal fixation has cyclic annular fixed block (25), cyclic annular fixed block (25) inner wall is equipped with one sunken (26), the distance between the terminal surface of cyclic annular fixed block (25) and light source (4) slightly is greater than the thickness of the cyclic annular baffle of second (24), the cyclic annular baffle of second (24) outer wall corresponds sunken (26) department and is equipped with arch (27), arch (27) can block and locate in sunken (26).
7. The water quality safety monitor according to claim 6, wherein: still include a sealing washer (28), sealing washer (28) are inlayed and are located light source (4) inner wall, the contact department of transparent glass (22) and light source (4) is sealed in sealing washer (28).
8. The water quality safety monitor according to claim 6, wherein: the part of the cover plate (21) positioned in the transparent glass (22) is provided with a water inlet hole (28), and the water inlet hole (28) is used for feeding water into the incubator (2).
9. A water quality safety monitor according to claim 3, wherein: still include a black cyclic annular organic glass board (8), in staving (5) is located to black cyclic annular organic glass board (8) cover, when light source (4) slided into staving (5), light source (4) outer wall and black cyclic annular organic glass board (8) wall butt.
10. The water quality safety monitor according to claim 9, wherein: the light source (4) is coaxially and fixedly arranged in the barrel body (1) to vertically shoot daphnia in the incubator (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910972851.5A CN110646576A (en) | 2019-10-14 | 2019-10-14 | Water quality safety monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910972851.5A CN110646576A (en) | 2019-10-14 | 2019-10-14 | Water quality safety monitor |
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| Publication Number | Publication Date |
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| CN110646576A true CN110646576A (en) | 2020-01-03 |
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| CN201910972851.5A Pending CN110646576A (en) | 2019-10-14 | 2019-10-14 | Water quality safety monitor |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5798222A (en) * | 1995-07-17 | 1998-08-25 | Guava Technologies, Inc. | Apparatus for monitoring substances in organisms |
| CN101859011A (en) * | 2009-04-08 | 2010-10-13 | 鸿富锦精密工业（深圳）有限公司 | Lens module |
| CN105466935A (en) * | 2016-01-19 | 2016-04-06 | 武汉昌宝环保工程有限公司 | Closed microscopic shooting system |
| CN208588671U (en) * | 2018-07-12 | 2019-03-08 | 大连泓喜国际贸易有限公司 | A kind of device of fluorescent method identification positioning meat helminth |
| CN211122822U (en) * | 2019-10-14 | 2020-07-28 | 武汉市天泉慧源环保科技有限公司 | Water quality safety monitor |
-
2019
- 2019-10-14 CN CN201910972851.5A patent/CN110646576A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5798222A (en) * | 1995-07-17 | 1998-08-25 | Guava Technologies, Inc. | Apparatus for monitoring substances in organisms |
| CN101859011A (en) * | 2009-04-08 | 2010-10-13 | 鸿富锦精密工业（深圳）有限公司 | Lens module |
| CN105466935A (en) * | 2016-01-19 | 2016-04-06 | 武汉昌宝环保工程有限公司 | Closed microscopic shooting system |
| CN208588671U (en) * | 2018-07-12 | 2019-03-08 | 大连泓喜国际贸易有限公司 | A kind of device of fluorescent method identification positioning meat helminth |
| CN211122822U (en) * | 2019-10-14 | 2020-07-28 | 武汉市天泉慧源环保科技有限公司 | Water quality safety monitor |
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