CN103389282A - Near-infrared photoelectric sensing technology based oil spill monitoring system - Google Patents
Near-infrared photoelectric sensing technology based oil spill monitoring system Download PDFInfo
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- CN103389282A CN103389282A CN2012101456794A CN201210145679A CN103389282A CN 103389282 A CN103389282 A CN 103389282A CN 2012101456794 A CN2012101456794 A CN 2012101456794A CN 201210145679 A CN201210145679 A CN 201210145679A CN 103389282 A CN103389282 A CN 103389282A
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Abstract
The invention discloses a near-infrared photoelectric sensing technology based oil spill monitoring system. The system is mainly formed by a stabilized current power supply, and a light emitting apparatus and a processing circuit which are connected with the stabilized current power supply, and a sample apparatus is arranged between the light emitting apparatus and the processing circuit. The system has the advantages of stable structure, high measure precision, low analysis cost, cost saving and no pollution to the environment.
Description
Technical field
The present invention relates to spilled oil monitoring, specifically refer to the oil spill monitoring system based on the near infrared photoelectric sense technology.
Background technology
In recent years, because the exploration of China marine oil and exploitation scale constantly enlarge, the offshore oil transportation is day by day busy, because oil exploitation, transportation, storage and other reason cause the occurrence probability of ocean Accidental Oil Spill event, constantly increases.According to statistics, the end of the year 1973～2008, more than 3000 of ship spill accident occurs in China coast altogether, wherein the above great ship spill accident of 50 t is 69, total oil spillage 37077 t, average annual 2, average every accident oil spillage 537 t, in the coastal resident living that marine environment caused the simultaneously serious impact of great injury.
Current traditional detection method for offshore spilled oil has airborne remote sensing and satellite remote sensing; but both all exist different problems; Aerial remote sensing monitoring does not have real-time; satellite remote sensing has the shortcomings such as inaccuracy for a small range of pollution; therefore, study and design a kind of energy in real time, the system of monitor offshore floating oil spilling is significant to the resource of protecting the marine environment.In view of near-infrared spectral analysis technology have that speed is fast, cost is low, pollution-free, do not destroy advantage and the successful Application in sterling oil is differentiated such as sample, designed a kind of detection system of oil spilling based on the Near-infrared Spectral Absorption technology.This system employing near infrared light, in conjunction with take single-chip microcomputer as main data acquisition module, carries out on-line real time monitoring to COASTAL SURFACE as probe source, and is significant for the Environmental security of protection offshore sea waters.
Near-infrared spectral analysis technology and advantage thereof
Near infrared light (NIR) refers to a kind of electromagnetic wave between visible light and infrared light, and wavelength in 780～2 526 nm scopes, is a kind of non-visible light that people find the earliest.Near infrared spectrum is mainly that the anharmonicity due to molecular vibration produces while making molecular vibration from ground state to the high level transition.Frequency multiplication and sum of fundamental frequencies that general organism is mainly OH, C and NH at this regional Near-infrared Spectral Absorption absorb, and nearly all organic primary structure and composition can find signal in their near infrared spectrum, and spectrogram is stable.The researcher finds afterwards, and in the content of material and near-infrared region, a plurality of different wavelength points absorption peaks are linear, so starts to utilize this technology to measure content of material in some products.Because organism such as oils all contain OH, C and NH group, so near infrared technology constantly is applied to configuration and the detection of oils.
Summary of the invention
The object of the present invention is to provide have Stability Analysis of Structures, measuring accuracy is high, analysis cost is lower, cost saving, and the oil spill monitoring system based on the near infrared photoelectric sense technology free from environmental pollution.
Implementation of the present invention is as follows: based on the oil spill monitoring system of near infrared photoelectric sense technology, mainly by stabilized current supply and the light-emitting device that is connected with stabilized current supply and treatment circuit, formed, also be provided with sampling device between described light-emitting device and treatment circuit.
Described light-emitting device comprises that the near-infrared LED lamp that is connected in stabilized current supply forms, and also comprises lens, optical filter, and described lens are arranged between near-infrared LED lamp and optical filter, and described optical filter is arranged between lens and sampling device.
Described treatment circuit is mainly by the perspective photo-detector that is arranged on the sampling device place, and the photoelectric switching circuit that is connected successively with the perspective photo-detector, modulation circuit, and amplification, filtering, shaping circuit, A/D change-over circuit, single-chip microcomputer form.
The model of described single-chip microcomputer is the MSP430F149 single-chip microcomputer.
Described single-chip microcomputer also is connected with GPRS remote terminal device.
Described GPRS remote terminal device is connected with host computer by GPRS network.
System requirements photoelectric sensing probe portion has higher accuracy of detection and stability, and real-time is high, namely needs seawater to be measured is carried out continuous continual on-line measurement, so adopts the near-infrared LED lamp as light source in light-emitting device.The near infrared light that light source sends selects to obtain oil spilling is had the analysis light of characteristic absorption through lens, optical filter in the optical frames group, sample in transmission and sampling device interacts, then enter the perspective photo-detector, light signal is converted to electric signal, thereby realizes the detection to sample composition.
Light-emitting device is to utilize the transmission of near infra red light principle of absorption to carry out on-line monitoring to the oleaginousness in water, therefore require the spectral characteristic of light source to be positioned at near-infrared region, the near infrared light of the specific wavelength that adopts is as light source, and consider that design encapsulates and want long-term rendering on sea with the form of buoy the most at last, and the sea environment is comparatively abominable, so, require the volume of this light source little, physical strength is high, stability is strong, therefore select the near-infrared LED lamp as light source device.
The present invention is by mainly stabilized current supply and the light-emitting device that is connected with stabilized current supply and treatment circuit, consisting of.
Light-emitting device adopts the near infrared photoelectric detecting technology, and treatment circuit employing data acquisition process technology realizes the detection to spilled oil on water surface.Be measured as the light intensity magnitude of oil spilling characteristic absorption wavelength, through photoelectric switching circuit and modulation circuit, light signal be converted into electric signal, obtain carrying the pulsed modulation simulating signal of measured information.Signal after modulation after the amplification of amplification, filtering, shaping circuit, filtering, shaping etc. are processed, then converts digital signal to through the A/D change-over circuit chip in the A/D change-over circuit, sends in single-chip microcomputer and processes.Consider that this system finally will render to long-term work on sea with the form of buoy, therefore the energy consumption for control assembly has certain requirement.System has adopted low-power consumption, the MSP430F149 single-chip microcomputer of large buffer memory is as main control unit, and adopt the C Programming with Pascal Language to complete collection and the pre-service of data, deal with data sends to host computer through GPRS remote terminal device and carries out analysis confirmation to reach the monitoring purpose the most at last.
The invention has the advantages that: native system carries out real-time data acquisition for the oil spilling of sea variable concentrations, and with voltage signal, is transmitted to host computer.The mathematical model that host computer is set up by existing voltage signal and oil spilling concentration draws the contaminated degree of seawater to the varying voltage signal analysis that receives and so that maritime sector takes appropriate measures, oil spill is processed.This system innovation point is to adopt near-infrared spectral analysis technology, in conjunction with low-power consumption MSP430 single-chip microcomputer and with the form encapsulation of buoy, offshore spilled oil is carried out on-line real time monitoring, the full grouting that not only has airborne remote sensing and do not had, make grouting construction more economical, more effectively carry out.The test findings of grouting shows, this grouting on-line detecting system can meet the requirement of on-the-spot grouting, and indices all reaches designing requirement, and it provides more complete means of testing for grouting works, thereby guaranteed that grouting quality supervises with providing effectively.
Description of drawings
Fig. 1 is system architecture schematic diagram of the present invention.
Fig. 2 is structural representation of the present invention.
Embodiment
Embodiment one
As shown in Figure 1, 2.
Based on the oil spill monitoring system of near infrared photoelectric sense technology, mainly by stabilized current supply and the light-emitting device that is connected with stabilized current supply and treatment circuit, formed, also be provided with sampling device between described light-emitting device and treatment circuit.
Described light-emitting device comprises that the near-infrared LED lamp that is connected in stabilized current supply forms, and also comprises lens, optical filter, and described lens are arranged between near-infrared LED lamp and optical filter, and described optical filter is arranged between lens and sampling device.
Described treatment circuit is mainly by the perspective photo-detector that is arranged on the sampling device place, and the photoelectric switching circuit that is connected successively with the perspective photo-detector, modulation circuit, and amplification, filtering, shaping circuit, A/D change-over circuit, single-chip microcomputer form.
The model of described single-chip microcomputer is the MSP430F149 single-chip microcomputer.
Described single-chip microcomputer also is connected with GPRS remote terminal device.
Described GPRS remote terminal device is connected with host computer by GPRS network.
System requirements photoelectric sensing probe portion has higher accuracy of detection and stability, and real-time is high, namely needs seawater to be measured is carried out continuous continual on-line measurement, so adopts the near-infrared LED lamp as light source in light-emitting device.The near infrared light that light source sends selects to obtain oil spilling is had the analysis light of characteristic absorption through lens, optical filter in the optical frames group, sample in transmission and sampling device interacts, then enter the perspective photo-detector, light signal is converted to electric signal, thereby realizes the detection to sample composition.
Light-emitting device is to utilize the transmission of near infra red light principle of absorption to carry out on-line monitoring to the oleaginousness in water, therefore require the spectral characteristic of light source to be positioned at near-infrared region, the near infrared light of the specific wavelength that adopts is as light source, and consider that design encapsulates and want long-term rendering on sea with the form of buoy the most at last, and the sea environment is comparatively abominable, so, require the volume of this light source little, physical strength is high, stability is strong, therefore select the near-infrared LED lamp as light source device.
The present invention is by mainly stabilized current supply and the light-emitting device that is connected with stabilized current supply and treatment circuit, consisting of.
Light-emitting device adopts the near infrared photoelectric detecting technology, and treatment circuit employing data acquisition process technology realizes the detection to spilled oil on water surface.Be measured as the light intensity magnitude of oil spilling characteristic absorption wavelength, through photoelectric switching circuit and modulation circuit, light signal be converted into electric signal, obtain carrying the pulsed modulation simulating signal of measured information.Signal after modulation after the amplification of amplification, filtering, shaping circuit, filtering, shaping etc. are processed, then converts digital signal to through the A/D change-over circuit chip in the A/D change-over circuit, sends in single-chip microcomputer and processes.Consider that this system finally will render to long-term work on sea with the form of buoy, therefore the energy consumption for control assembly has certain requirement.System has adopted low-power consumption, the MSP430F149 single-chip microcomputer of large buffer memory is as main control unit, and adopt the C Programming with Pascal Language to complete collection and the pre-service of data, deal with data sends to host computer through GPRS remote terminal device and carries out analysis confirmation to reach the monitoring purpose the most at last.
As mentioned above, can well realize the present invention.
Claims (6)
1., based on the oil spill monitoring system of near infrared photoelectric sense technology, it is characterized in that: mainly by stabilized current supply and the light-emitting device that is connected with stabilized current supply and treatment circuit, formed, also be provided with sampling device between described light-emitting device and treatment circuit.
2. the oil spill monitoring system based on the near infrared photoelectric sense technology according to claim 1, it is characterized in that: described light-emitting device comprises that the near-infrared LED lamp that is connected in stabilized current supply forms, also comprise lens, optical filter, described lens are arranged between near-infrared LED lamp and optical filter, and described optical filter is arranged between lens and sampling device.
3. the oil spill monitoring system based on the near infrared photoelectric sense technology according to claim 1, it is characterized in that: described treatment circuit is mainly by the perspective photo-detector that is arranged on the sampling device place, and with the photoelectric switching circuit that is connected successively of perspective photo-detector, modulation circuit, amplification, filtering, shaping circuit, A/D change-over circuit, single-chip microcomputer form.
4. the oil spill monitoring system based on the near infrared photoelectric sense technology according to claim 3, it is characterized in that: the model of described single-chip microcomputer is the MSP430F149 single-chip microcomputer.
5. according to claim 3 or 4 described oil spill monitoring systems based on the near infrared photoelectric sense technology, it is characterized in that: described single-chip microcomputer also is connected with GPRS remote terminal device.
6. the oil spill monitoring system based on the near infrared photoelectric sense technology according to claim 5, it is characterized in that: described GPRS remote terminal device is connected with host computer by GPRS network.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2902198B2 (en) * | 1992-02-05 | 1999-06-07 | 三菱重工業株式会社 | Lubricating oil deterioration measuring device |
| CN101414009A (en) * | 2008-11-15 | 2009-04-22 | 大连海事大学 | Portable airborne offshore oil overflowing remote sense monitoring system |
| CN101758909A (en) * | 2009-12-22 | 2010-06-30 | 大连海事大学 | Offshore spilled oil tracking buoy and operation method thereof |
| CN101968442A (en) * | 2010-09-19 | 2011-02-09 | 西安交通大学 | Crank block movable mirror scanning system for Fourier transform spectrometer |
| CN202533369U (en) * | 2012-05-11 | 2012-11-14 | 四川优的科技有限公司 | Near infrared photoelectric sensing technology-based oil spill monitoring system |
-
2012
- 2012-05-11 CN CN2012101456794A patent/CN103389282A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2902198B2 (en) * | 1992-02-05 | 1999-06-07 | 三菱重工業株式会社 | Lubricating oil deterioration measuring device |
| CN101414009A (en) * | 2008-11-15 | 2009-04-22 | 大连海事大学 | Portable airborne offshore oil overflowing remote sense monitoring system |
| CN101758909A (en) * | 2009-12-22 | 2010-06-30 | 大连海事大学 | Offshore spilled oil tracking buoy and operation method thereof |
| CN101968442A (en) * | 2010-09-19 | 2011-02-09 | 西安交通大学 | Crank block movable mirror scanning system for Fourier transform spectrometer |
| CN202533369U (en) * | 2012-05-11 | 2012-11-14 | 四川优的科技有限公司 | Near infrared photoelectric sensing technology-based oil spill monitoring system |
Non-Patent Citations (1)
| Title |
|---|
| 毕卫红等: "基于近红外光电传感技术的溢油监测系统设计", 《仪表技术与传感器》, no. 9, 30 September 2010 (2010-09-30) * |
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Application publication date: 20131113 |