CN110487738B - LED ultraviolet oil film monitoring equipment and oil spill monitoring method - Google Patents
LED ultraviolet oil film monitoring equipment and oil spill monitoring method Download PDFInfo
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 157
- 239000003305 oil spill Substances 0.000 title claims abstract description 25
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- 238000005516 engineering process Methods 0.000 abstract description 10
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- 239000003921 oil Substances 0.000 description 49
- 230000007613 environmental effect Effects 0.000 description 7
- 239000010779 crude oil Substances 0.000 description 4
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- 238000003911 water pollution Methods 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
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Abstract
The invention discloses LED ultraviolet oil film monitoring equipment and an oil spill monitoring method, wherein the monitoring equipment comprises an LED light source module, a monitoring module, a comparison module, a signal processing module and a power supply module, the LED light source module, the monitoring module and the comparison module are respectively connected with the signal processing module, and the power supply module is respectively connected with the LED light source module and the signal processing module; the monitoring module and the comparison module have spectral response channels with different frequencies; the monitoring module monitors ultraviolet reflected light and ultraviolet fluorescence, and the comparison module monitors ultraviolet fluorescence; by adopting an ultraviolet reflection and ultraviolet fluorescence combined technology and a relative threshold setting and oil spill monitoring algorithm, the monitoring sensitivity is improved, the false alarm rate is reduced, the influence of external environment change on equipment is reduced, the non-contact monitoring of an oil film on a water surface is realized, and an oil spill event is timely discovered.
Description
Technical Field
The invention belongs to the technical field of chemical safety, and particularly relates to LED ultraviolet oil film monitoring equipment and an oil spill monitoring method.
Background
Along with the development of petroleum production and transportation activities, various oil spill accidents are increased day by day, which not only causes huge economic loss, but also causes serious water pollution and ecological influence. With the importance of the whole society on environmental protection and the rapid development of industries, the environmental protection pressure of government regulatory departments and production and sales enterprises is increasing day by day. Advanced oil spill monitoring equipment and effective emergency plans are important means for reducing the risk of oil spill. Because of the unpredictability of the oil spill accident, finding the oil product leakage at the first time is the most effective method for preventing and controlling the oil spill accident.
In the oil spill monitoring technology, the fixed-point oil spill monitoring technology has the characteristics of low cost and small range, forms effective complementation with high-cost and large-range oil spill monitoring technologies such as satellites and radars, and is an oil spill monitoring technology with wide application value. Wherein, ultraviolet fluorescence monitoring is a main fixed-point monitoring technology, and ultraviolet reflection monitoring also has application examples.
The existing ultraviolet fluorescence oil spill monitoring technology mostly adopts a xenon lamp as an excitation light source, and judges whether oil spill occurs or not by judging the threshold value change of the signal intensity, so that the instrument has four problems: 1. because the fluorescence signal is weak, the signal-to-noise ratio of the signal collected in the open-circuit environment is low, and the sensitivity of the instrument is influenced; 2. the threshold value of the instrument is determined by an absolute change value, and the set threshold value is invalid due to the change of an external environment (such as water level change), so that the oil spill condition cannot be accurately judged; 3. the fluorescence principle determines that the fluorescence technology is not sensitive to light oil products, and the monitored oil products are few in variety; 4. short light source life and high equipment cost.
The existing ultraviolet reflection oil spilling monitoring technology mainly aims at low monitoring specificity, high monitoring false alarm rate and easiness in being influenced by external sundries and environmental conditions.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides LED ultraviolet oil film monitoring equipment and an oil spill monitoring method, wherein an LED is used as a light source, an ultraviolet reflection and ultraviolet fluorescence combined technology is adopted, and the monitoring sensitivity is improved, the false alarm rate is reduced, the influence of external environment change on the equipment is reduced, the non-contact monitoring of an oil film on a water surface is realized, an oil spill event is discovered in time, and an alarm is given out at the first time through a relative threshold setting and an oil spill monitoring algorithm.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: an LED ultraviolet oil film monitoring device comprises an LED light source module, a monitoring module, a comparison module, a signal processing module and a power supply module, wherein the LED light source module, the monitoring module and the comparison module are respectively connected with the signal processing module, and the power supply module is respectively connected with the LED light source module and the signal processing module; the LED light source module emits ultraviolet light to irradiate the water surface, the monitoring module and the comparison module detect water surface signals of an irradiation area of the LED light source module, and the monitoring module and the comparison module are provided with spectral response channels with different frequencies; the monitoring module monitors ultraviolet reflected light and ultraviolet fluorescence, and the comparison module monitors ultraviolet fluorescence.
Further, the LED light source module comprises LED light particles and a light-gathering cup, light emitted by the LED light particles is gathered by the light-gathering cup, and the spectral range is 200-400 nm.
Further, the monitoring module comprises a first converging mirror, a first optical filter and a first photodetector for converting the optical signal into an electrical signal, and the spectral range is 200-600 nm.
Further, the comparison module comprises a second converging mirror, a second optical filter and a second photodetector for converting the optical signal into the electrical signal, and the spectral range is 400-600 nm.
Further, the signal processing module comprises a single chip microcomputer or a DSP, and further comprises an LED light source control module, a signal operational amplifier conversion module, a data operation processing module and a data interface, wherein the power supply module comprises a circuit power supply and an LED driving power supply, and the LED light source control module is connected with the LED driving power supply and controls the light source emission frequency; the signal operational amplifier conversion module receives the electric signals transmitted by the monitoring module and the comparison module, amplifies the signals and outputs digital signals through operational amplifier and A/D conversion; the data operation processing module calculates whether oil spilling occurs or not through an oil spilling monitoring algorithm and transmits the oil spilling to the upper computer in real time through the data interface.
Further, the first optical filter and the second optical filter are both bandpass optical filters.
An oil spill monitoring method is realized based on the LED ultraviolet oil film monitoring equipment, and comprises the following steps:
the LED light source module emits ultraviolet light to irradiate the water surface; the monitoring module receives the ultraviolet reflection signal and the fluorescence signal based on an ultraviolet reflection principle and a fluorescence principle to obtain a signal A; the contrast module receives the excited fluorescence signal based on the ultraviolet fluorescence principle to obtain a signal B; adding the two paths of signals to obtain an enhanced signal (A + B), and subtracting the two paths of signals to obtain a reference signal (A-B);
b. respectively setting a fluorescence threshold value 1 and a reflection threshold value 2;
c. calculating the R value according to a formula R ═ A + B)/(A-B), and judging the oil film condition of the water surface according to a signal ratio R and a set fluorescence threshold value 1;
d. setting the difference value delta A of the monitored reflection signals at two moments, wherein delta A is A2-A1Wherein the first monitoring period monitors the signal A1Monitoring signal A in the second monitoring period2(ii) a Comparing the delta A with a set reflection threshold value 2, and further judging the oil film condition of the water surface;
e. setting oil spilling monitoring methods A and B under different environments;
algorithm A: in a sampling period, if R is greater than a threshold value 1 or delta A is greater than a threshold value 2, entering a delay monitoring period; in the delay monitoring period, carrying out encryption sampling for 3 times, if the R is greater than a threshold value 1 or the delta A is greater than a threshold value 2 for 3 times, alarming, and ending the delay monitoring period; if all the time can not meet the conditions that R is greater than the threshold value 1 or delta A is greater than the threshold value 2 for 3 times, no alarm is given, and the delay monitoring period is ended;
And B algorithm: in a sampling period, if R is larger than a threshold value 1 and delta A is larger than a threshold value 2, entering a delay monitoring period; in the delay monitoring period, carrying out encryption sampling for 3 times, if the R is more than a threshold value 1 and the delta A is more than a threshold value 2 after 3 times, alarming, and ending the delay monitoring period; if all the time periods can not meet the conditions that R is larger than a threshold value 1 and delta A is larger than a threshold value 2 for 3 times, no alarm is given, and the cycle delay monitoring period is 3 times; and (4) not alarming in the cycle monitoring period, and ending the delay monitoring period.
Further, LED ultraviolet oil film monitoring facilities is connected with audible-visual annunciator, CCTV camera or emergency control valve, realizes respectively under the condition of judging the oil spilling emergence: an audible and visual alarm is started to give an alarm to field workers, a CCTV camera is started to further judge the oil spilling situation, and a control valve is started to prevent oil spilling diffusion.
Furthermore, the LED ultraviolet oil film monitoring equipment is connected with the monitoring system in a wired or wireless communication mode, the monitoring system can be connected with a plurality of LED ultraviolet oil film monitoring equipment for networking, and water flow, wind power and tide sensors can be integrated to form a continuous, real-time, large-range and three-dimensional monitoring area; the monitoring system can integrate the environmental sensitive point information and the emergency resource information of the monitoring area and realize the dynamic management of the information.
Furthermore, the monitoring system is provided with an electronic map display, correspondingly displays the monitoring equipment and various sensors on the electronic map, and provides monitoring data in real time; once oil spillage occurs, workers can observe the conditions of all monitoring points in real time by using the monitoring system, and specific strategies are formulated for emergency rescue workers by combining the environment sensitive points and the emergency resource conditions, so that emergency strategy information support is provided.
Compared with the prior art, the invention has the advantages that:
1. the sensitivity of the monitor is improved, and the range of oil product types is enlarged;
2. the equipment can simultaneously utilize a reflection principle and a fluorescence principle to carry out oil film monitoring, detection results of the monitoring module and the comparison module are respectively compared with a fluorescence threshold value 1 and a reflection threshold value 2 after calculation, and the results can be mutually verified, so that the sensitivity of the equipment is enhanced, the false alarm rate of the instrument is reduced, and the influence of external impurities and environmental changes on the instrument is reduced;
3. the service life of the product is prolonged, the energy consumption of instruments is reduced, and the processing cost is reduced;
4. the monitoring system can integrate a plurality of LED ultraviolet oil film monitoring devices and other devices such as water flow, wind power and tide sensors in a monitoring area, can also integrate environment sensitive point information and emergency resource information of the monitoring area, and realizes dynamic management of the information; the condition of each monitoring point can be observed in real time by using the monitoring system by workers, and a targeted strategy can be conveniently formulated for emergency rescue personnel.
Drawings
FIG. 1 is a schematic structural diagram of an LED ultraviolet oil film monitoring device.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
As shown in fig. 1, the LED uv oil film monitoring device of the present invention comprises an LED light source module, a monitoring module, a comparison module, a signal processing module and a power module, wherein the LED light source module, the monitoring module and the comparison module are respectively connected to the signal processing module, and the power module is respectively connected to the LED light source module and the signal processing module; the LED light source module emits ultraviolet light to irradiate the water surface, the monitoring module and the comparison module detect water surface signals of an irradiation area of the LED light source module, and the monitoring module and the comparison module have spectral response channels with different frequencies; the monitoring module monitors ultraviolet reflected light and ultraviolet fluorescence, and the comparison module monitors ultraviolet fluorescence.
The LED light source module comprises LED lamp particles and a light-gathering cup, light emitted by the LED lamp particles is gathered by the light-gathering cup, and the spectral range is 200-400 nm; the monitoring module comprises a first converging lens, a first optical filter and a first photoelectric detector for converting an optical signal into an electric signal, and the spectral range is 200-600 nm; the comparison module comprises a second converging lens, a second optical filter and a second photoelectric detector for converting optical signals into electric signals, and the spectral range is 400-600 nm; the first optical filter and the second optical filter are both band-pass optical filters.
The signal processing module comprises a single chip microcomputer or a DSP (digital signal processor), and further comprises an LED light source control module, a signal operational amplifier conversion module, a data operation processing module and a data interface, wherein the power supply module comprises a circuit power supply and an LED driving power supply, the LED driving power supply is connected with the LED light source module, the circuit power supply is connected with the signal processing module and supplies power to the LED light source module and the signal processing module, and meanwhile, the power supply module is controlled by the signal processing module to adjust pulse signals of LED lamp particles. The power supply module can be powered by 220V alternating current, 12V direct current and 24V direct current, and is suitable for power supply conditions of various places.
The LED light source control module is connected with an LED driving power supply and controls the emission frequency of the light source; the signal operational amplifier conversion module receives the electric signals transmitted by the monitoring module and the comparison module, amplifies the signals and outputs digital signals through operational amplifier and A/D conversion; the data operation processing module calculates whether oil spilling occurs or not through an oil spilling monitoring algorithm and transmits the oil spilling to the upper computer in real time through the data interface.
The invention also discloses an oil spilling monitoring method which is realized based on the LED ultraviolet oil film monitoring equipment and comprises the following steps:
an LED light source module of the LED ultraviolet oil film monitoring equipment emits ultraviolet light to irradiate the water surface; the monitoring module receives the ultraviolet reflection signal and the fluorescence signal based on an ultraviolet reflection principle and a fluorescence principle to obtain a signal A; the contrast module receives the excited fluorescence signal based on the ultraviolet fluorescence principle to obtain a signal B; adding the two paths of signals to obtain an enhanced signal (A + B), and subtracting the two paths of signals to obtain a reference signal (A-B);
b. Respectively setting a fluorescence threshold value 1 and a reflection threshold value 2;
c. calculating an R value according to the formula (a + B)/(a-B), which enhances the received signal and removes certain environmental influences; judging the oil film condition of the water surface according to the signal ratio R and a set fluorescence threshold value 1;
d. setting the difference value delta A of the monitored reflection signals at two moments, wherein delta A is A2-A1Wherein the first monitoring period detects the signal A1, and the second monitoring period detects the signal A2(ii) a Comparing the delta A with a set reflection threshold value 2, and further judging the oil film condition on the water surface;
e. setting oil spillage monitoring methods A and B in different environments;
the first algorithm: in a sampling period, if R is greater than a threshold value 1 or delta A is greater than a threshold value 2, entering a delay monitoring period; in the delay monitoring period, carrying out encryption sampling for 3 times, if the R is greater than a threshold value 1 or the delta A is greater than a threshold value 2 for 3 times, alarming, and ending the delay monitoring period; if all the time can not meet the conditions that R is greater than the threshold value 1 or delta A is greater than the threshold value 2 for 3 times, no alarm is given, and the delay monitoring period is ended;
and B, algorithm B: in a sampling period, if R is greater than a threshold value 1 and delta A is greater than a threshold value 2, entering a delay monitoring period; in the delay monitoring period, carrying out encryption sampling for 3 times, if the R is greater than a threshold value 1 and the delta A is greater than a threshold value 2 for 3 times, alarming, and ending the delay monitoring period; if all the time can not satisfy R > threshold 1 and delta A > threshold 2 for 3 times, no alarm is given, and the cycle delay monitoring period is 3 times; and (4) the cyclic monitoring period is not alarmed, and the delay monitoring period is ended.
The LED ultraviolet oil film monitoring equipment is connected with an audible and visual alarm, a CCTV camera or an emergency control valve, and the detection is realized under the condition of judging the occurrence of oil spilling: an audible and visual alarm is started to give an alarm to field workers, a CCTV camera is started to further judge the oil spilling situation, and a control valve is started to prevent oil spilling diffusion.
The LED ultraviolet oil film monitoring equipment is connected with a monitoring system in a wired or wireless communication mode, the monitoring system can be connected with a plurality of LED ultraviolet oil film monitoring equipment for networking, and can also integrate water flow, wind power and tide sensors to form a continuous, real-time, large-range and three-dimensional monitoring area; the monitoring system can integrate the environmental sensitive point information and the emergency resource information of the monitoring area and realize the dynamic management of the information.
The monitoring system is provided with an electronic map display, correspondingly displays the monitoring equipment and various sensors on the electronic map, and provides monitoring data in real time; once oil spillage occurs, workers can observe the conditions of all monitoring points in real time by using the monitoring system, and specific strategies are formulated for emergency rescue workers by combining the environment sensitive points and the emergency resource conditions, so that emergency strategy information support is provided.
Example 1:
The device is arranged at the upper part of a rainwater pool of a certain oil depot, the pool is built by cement, the depth is 2.5 meters, the width is 1.5 meters, water flows through the pool, the installation height of the device is 2.5 meters away from the water surface, and the adopted density is 0.89g/cm3The crude oil simulates oil spill, a small amount of crude oil is dropped on the water surface, when the oil film flows through the equipment monitoring area, the equipment outputs an oil spill signal, and an audible and visual alarm connected with the equipment gives an alarm.
Example 2:
the device is arranged at a dock berth, the installation height of the device is 3 meters away from the sea surface, a floating open water bag is placed in a device monitoring area, a small amount of crude oil is dripped into the water bag, after the crude oil is dripped, the device outputs an oil overflow signal, and an audible and visual alarm connected with the device gives an alarm.
Example 3:
the equipment is arranged at the upper part of a clean drainage channel of a certain production plant, the channel is built by cement, the depth is 1.5 meters, the width is 1.1 meters, water flows through the channel, the installation height of the equipment is 1 meter away from the water surface, and the adopted density is 0.85g/cm3When the oil film flows through the monitoring area of the equipment, the equipment outputs an oil overflow signal, and an audible and visual alarm connected with the equipment gives an alarm.
It will be understood that the foregoing description is not intended to limit the invention, and that the invention is not limited to the examples described above, and that various changes, modifications, additions and substitutions which may be made by one of ordinary skill in the art without departing from the spirit of the invention are therefore intended to be included within the scope of the invention.
Claims (2)
1. An oil spill monitoring method is characterized by comprising the following steps:
the LED light source module emits ultraviolet light to irradiate the water surface; the monitoring module receives the ultraviolet reflection signal and the fluorescence signal based on an ultraviolet reflection principle and a fluorescence principle to obtain a signal A; the contrast module receives the excited fluorescence signal based on the ultraviolet fluorescence principle to obtain a signal B; adding the two paths of signals to obtain an enhanced signal (A + B), and subtracting the two paths of signals to obtain a reference signal (A-B);
b. respectively setting a fluorescence threshold value 1 and a reflection threshold value 2;
c. calculating the R value according to a formula R (A + B)/(A-B), and judging the oil film condition of the water surface according to a signal ratio R and a set fluorescence threshold value 1;
d. setting the difference value delta A of the monitored reflection signals at two moments, wherein delta A is A2-A1Wherein the first monitoring period monitors the signal A1Monitoring signal A in the second monitoring period2(ii) a Comparing the delta A with a set reflection threshold value 2, and further judging the oil film condition of the water surface;
e. setting oil spilling monitoring methods A and B under different environments;
algorithm A: in a sampling period, if R is greater than a threshold value 1 or delta A is greater than a threshold value 2, entering a delay monitoring period; in the delay monitoring period, carrying out encryption sampling for 3 times, if the R is greater than a threshold value 1 or the delta A is greater than a threshold value 2 for 3 times, alarming, and ending the delay monitoring period; if all the time can not meet the conditions that R is greater than the threshold value 1 or delta A is greater than the threshold value 2 for 3 times, no alarm is given, and the delay monitoring period is ended;
And B algorithm: in a sampling period, if R is larger than a threshold value 1 and delta A is larger than a threshold value 2, entering a delay monitoring period; in the delay monitoring period, carrying out encryption sampling for 3 times, if the R is more than a threshold value 1 and the delta A is more than a threshold value 2 after 3 times, alarming, and ending the delay monitoring period; if all the time periods can not meet the conditions that R is larger than a threshold value 1 and delta A is larger than a threshold value 2 for 3 times, no alarm is given, and the cycle delay monitoring period is 3 times; the cyclic monitoring periods are not alarmed, and the delay monitoring period is ended;
the LED ultraviolet oil film monitoring equipment is connected with an audible and visual alarm, a CCTV camera or an emergency control valve, and the detection is realized under the condition of judging the occurrence of oil spilling: starting an audible and visual alarm to alarm field workers, starting a CCTV camera to further judge the oil spilling condition, and starting a control valve to prevent oil spilling diffusion;
the LED ultraviolet oil film monitoring equipment is connected with a monitoring system in a wired or wireless communication mode, the monitoring system can be connected with a plurality of LED ultraviolet oil film monitoring equipment for networking, and can also integrate water flow, wind power and tide sensors to form a continuous, real-time, large-range and three-dimensional monitoring area; the monitoring system can integrate the environment sensitive point information and the emergency resource information of the monitoring area and realize the dynamic management of the information;
The monitoring system is provided with an electronic map display, correspondingly displays the monitoring equipment and various sensors on the electronic map, and provides monitoring data in real time; once oil spillage occurs, workers can observe the conditions of all monitoring points in real time by using the monitoring system, and specific strategies are formulated for emergency rescue workers by combining the environment sensitive points and the emergency resource conditions, so that emergency strategy information support is provided.
2. The oil spill monitoring method according to claim 1, wherein the monitoring device for the oil film formed by the LED ultraviolet light is characterized in that: the LED illumination device comprises an LED light source module, a monitoring module, a comparison module, a signal processing module and a power supply module, wherein the LED light source module, the monitoring module and the comparison module are respectively connected with the signal processing module, and the power supply module is respectively connected with the LED light source module and the signal processing module; the LED light source module emits ultraviolet light to irradiate the water surface, the monitoring module and the comparison module detect water surface signals of an irradiation area of the LED light source module, and the monitoring module and the comparison module are provided with spectral response channels with different frequencies; the monitoring module monitors ultraviolet reflected light and ultraviolet fluorescence, and the comparison module monitors ultraviolet fluorescence;
the LED light source module comprises LED lamp particles and a light-gathering cup, light emitted by the LED lamp particles is gathered by the light-gathering cup, and the spectral range is 200-400 nm;
The monitoring module comprises a first converging mirror, a first optical filter and a first photoelectric detector for converting an optical signal into an electric signal, and the spectral range is 200-600 nm;
the comparison module comprises a second converging mirror, a second optical filter and a second photoelectric detector for converting an optical signal into an electric signal, and the spectral range is 400-600 nm;
the signal processing module comprises a single chip microcomputer or a DSP (digital signal processor), an LED light source control module, a signal operational amplifier conversion module, a data operation processing module and a data interface; the power supply module comprises a circuit power supply and an LED driving power supply, and the LED light source control module is connected with the LED driving power supply and controls the emission frequency of the light source; the signal operational amplifier conversion module receives the electric signals transmitted by the monitoring module and the comparison module, amplifies the signals and outputs digital signals through operational amplifier and A/D conversion; the data operation processing module calculates whether oil spillage occurs or not through an oil spillage monitoring algorithm and transmits the oil spillage to the upper computer in real time through a data interface;
the first optical filter and the second optical filter are both band-pass optical filters.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002214140A (en) * | 2001-01-18 | 2002-07-31 | Toshiba Corp | Oil film detection device |
| CN105181667A (en) * | 2015-11-03 | 2015-12-23 | 南京大学 | Ultraviolet fluorescence three-signal water quality sensor taking single UV-LED as light source and application thereof |
| CN105388134A (en) * | 2015-10-19 | 2016-03-09 | 青岛市光电工程技术研究院 | Fluorescence signal enhanced distance-self-adaptation oil spilling monitoring method |
| CN205844193U (en) * | 2016-07-26 | 2016-12-28 | 陕西正大环保科技有限公司 | Oil sensor in contactless water |
| CN106769882A (en) * | 2016-11-01 | 2017-05-31 | 深圳先进技术研究院 | Spilled oil monitoring instrument and its monitoring method |
| CN106981179A (en) * | 2017-02-28 | 2017-07-25 | 中国石油化工股份有限公司 | A kind of water-surface oil spilling monitoring device based on ultraviolet reflectance |
-
2018
- 2018-05-14 CN CN201810457336.9A patent/CN110487738B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002214140A (en) * | 2001-01-18 | 2002-07-31 | Toshiba Corp | Oil film detection device |
| CN105388134A (en) * | 2015-10-19 | 2016-03-09 | 青岛市光电工程技术研究院 | Fluorescence signal enhanced distance-self-adaptation oil spilling monitoring method |
| CN105181667A (en) * | 2015-11-03 | 2015-12-23 | 南京大学 | Ultraviolet fluorescence three-signal water quality sensor taking single UV-LED as light source and application thereof |
| CN205844193U (en) * | 2016-07-26 | 2016-12-28 | 陕西正大环保科技有限公司 | Oil sensor in contactless water |
| CN106769882A (en) * | 2016-11-01 | 2017-05-31 | 深圳先进技术研究院 | Spilled oil monitoring instrument and its monitoring method |
| CN106981179A (en) * | 2017-02-28 | 2017-07-25 | 中国石油化工股份有限公司 | A kind of water-surface oil spilling monitoring device based on ultraviolet reflectance |
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