CN205280588U - Multichannel surface of water oil real -time supervision device - Google Patents

Abstract

The utility model discloses a multichannel surface of water oil real -time supervision device, shell excitation light source passageway and the multichannel fluorescence receive channel inside with arranging the shell in including seal structure, the excitation light source passageway with the directional same direction of multichannel fluorescence receive channel is and correspond the light source of excitation light source passageway throws the direction and is in be equipped with protective glass on the shell, the direction that corresponds multichannel fluorescence receive channel receipt light is in be equipped with multichannel fluorescence lens on the shell. A multichannel surface of water oil real -time supervision device, adopt to survey surface of water oil fluorescence spectra method, can reject the influence of other impurity of aquatic, many access structure's design is favorable to judging the kind of oil spilling, the emergence of accurate early warning oil spilling.

Description

A kind of multichannel water surface oil real-time monitoring device

Technical field

This utility model relates to a kind of multichannel water surface oil real-time monitoring device, is a kind of optic probe equipment, belongs to sensor technical field.

Background technology

After oil spilling situation occurs for river course, ocean, the accurate degree monitoring oil spilling and oil spill type in time, is formulate oil spilling to process the important evidence of emergency measure. The existing real-time monitoring device for oil spilling fixed point monitoring; being primarily limited to the unicity of monitoring method, often adopt single or two photodetectors one to two channel signals of collection, the quantity of information of collection is limited; false alarm situation often occurs, and the monitoring of oil spill type cannot be realized.

Utility model content

In order to overcome above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of multichannel oil spilling real-time monitoring device, it is possible to oil spilling situation is carried out accurate early warning, and oil spill type is monitored.

The purpose of this utility model implements by the following technical programs:

A kind of multichannel water surface oil real-time monitoring device; including sealing the shell of structure and being placed in excitation source passage and the multichannel fluorescence reception passage of enclosure; described excitation source passage and described multichannel fluorescence reception passage point to same direction; and the light source projects direction of corresponding described excitation source passage is provided with protective glass on the housing, and the direction of corresponding multichannel fluorescence reception channel reception light is provided with multichannel fluorescent lens on the housing.

Described excitation source passage includes protective glass, light lens, light source optical filter and broad spectrum light source, and described protective glass, light lens, light source optical filter and broad spectrum light source are coaxially arranged in order.

Preferably, also include light source shade, be arranged on the optical axis of described protective glass, light lens, light source optical filter and broad spectrum light source.

Described multichannel fluorescence reception passage includes multichannel fluorescent lens, fluorescent optical filter group, multispectral sensing device driving plate and multi channel detector, and described multichannel fluorescence reception passage is coaxially arranged with described multi channel detector.

Preferably, also include fluorescence shade, be arranged between described multichannel fluorescent lens and described multi channel detector.

Preferably, also include multi-passage signal processing plate, be connected with described multi channel detector.

Fluorescent optical filter group and multi channel detector are mounted on multispectral sensing device and drive on plate, and fluorescent optical filter group is positioned at multi channel detector upper end, and multispectral sensing device drives plate to be positioned at multichannel fluorescent lens rear end.

Further, also including power supervisor, described power supervisor is that equipment is powered, and drives plate and multi-passage signal processing plate to provide corresponding power supply for broad spectrum light source, multispectral sensing device specifically.

Described protective glass adopts piezoid, it is possible to make ultraviolet spectra pass through.

Described light lens selects fused silica glass, and transmitance is within the scope of 200nm-400nm.

Described light source optical filter is wide band pass filter, and free transmission range is in 200nm-400nm, and peak transmittance is higher than 50%, completely switched off within the scope of 400nm-1200nm.

Described multichannel fluorescent lens is made up of multiple identical lens, can adopt quartz or K9 glass lens, have good transmitance in visible-range, and lens numbers can be arranged according to demand, may be configured as 6, but is not limited to 6. Fluorescent optical filter group 8 is made up of the narrow band pass filter of multiple different centre wavelengths, optical filter quantity is arranged according to demand, may be configured as 6, but is not limited to 6, bandwidth elects 10nm as, centre wavelength can elect 400nm, 420nm, 440nm successively as, 460nm, 480nm, 500nm, its peak transmittance is higher than 50%.

Described multi channel detector is made up of multiple identical detectors, and detector selects large area array silicon photoelectric diode, has higher photoelectric transformation efficiency within the scope of 400nm-600nm.

Fluorescence shade is installed, it is prevented that the crosstalk between fluorescence between every channel fluorescence lens and optical filter.

Multispectral sensing device drives, for the pretreatment to multi channel detector output current signal, including preposition amplification, filtering, the multispectral voltage signal demodulation of fluorescence.

Multi-passage signal processing plate is for receiving the analog voltage signal that multispectral sensing device drives, digital signal is converted to by multichannel analog to digital conversion circuit, and through digital signal pretreatment, obtain fluorescence multispectral data, according to multispectral profile and spectral intensity, calculating is oil spilling occurrence degree and oil spill type, passes to host computer in real time eventually through external interface such as RS232, wireless communication interface etc. and does the process of further emergency advance warning.

Power supervisor is broad spectrum light source, multispectral sensing device drives plate and multi-passage signal processing plate provides corresponding power supply.

Multichannel water surface oil real-time monitoring device run time, often collect a multispectral data, be set to S (n) (n is signalling channel number, n=1,2,3 ...), calculate signal overall strength according to multispectral dataWhen signal overall strength is beyond the threshold value set, continue to judge further according to spectral shape information, it may be assumed that utilize signal overall strength to remove multispectral data, it is thus achieved that normalized spectrum S ' (n)=S (n)/S_T, utilize Spectral matching algorithm to be mated with the spectrum in oil fluorescence curve data base by normalization spectrum, when with the similarity of certain oil in storehouse higher than the value set, it is determined that there occurs oil spilling and export oil spill type, otherwise it is assumed that there is not oil spilling. Wherein, Spectral matching algorithm preference information discrete-spectrum angle matching algorithm.

A kind of multichannel water surface oil real-time monitoring device described in the utility model, adopts detection water surface oil fluorescence spectrum method, it is possible to rejects the impact of other impurity, the design of multi-channel structure in water, facilitates deciding on the kind of oil spilling, the generation of accurate early warning oil spilling.

Accompanying drawing explanation

Below according to drawings and Examples, this utility model is described in further detail.

Fig. 1 is the structure chart of a kind of multichannel water surface oil real-time monitoring device described in the utility model.

In figure:

1, shell; 2, protective glass; 3, light lens; 4, light source optical filter; 5, broad spectrum light source; 6, multichannel fluorescent lens; 7, multispectral sensing device drives plate; 8, fluorescent optical filter group; 9, multi channel detector; 10, multi-passage signal processing plate; 11, power supervisor; 12, fluorescence shade; 13, light source shade.

Detailed description of the invention

A kind of multichannel water surface oil real-time monitoring device described in this utility model embodiment; including sealing the shell of structure and being placed in excitation source passage and the multichannel fluorescence reception passage of enclosure; described excitation source passage and described multichannel fluorescence reception passage point to same direction; and the light source projects direction of corresponding described excitation source passage is provided with protective glass on the housing, and the direction of corresponding multichannel fluorescence reception channel reception light is provided with multichannel fluorescent lens on the housing.

Described excitation source passage includes protective glass, light lens, light source optical filter and broad spectrum light source, and described protective glass, light lens, light source optical filter and broad spectrum light source are coaxially arranged in order.

Preferably, also include light source shade, be arranged on the optical axis of described protective glass, light lens, light source optical filter and broad spectrum light source.

Described multichannel fluorescence reception passage includes multichannel fluorescent lens, fluorescent optical filter group, multispectral sensing device driving plate and multi channel detector, and described multichannel fluorescence reception passage is coaxially arranged with described multi channel detector.

Preferably, also include fluorescence shade, be arranged between described multichannel fluorescent lens and described multi channel detector.

Preferably, also include multi-passage signal processing plate, be connected with described multi channel detector.

Fluorescent optical filter group and multi channel detector are mounted on multispectral sensing device and drive on plate, and fluorescent optical filter group is positioned at multi channel detector upper end, and multispectral sensing device drives plate to be positioned at multichannel fluorescent lens rear end.

Further, also including power supervisor, described power supervisor is that equipment is powered, and drives plate and multi-passage signal processing plate to provide corresponding power supply for broad spectrum light source, multispectral sensing device specifically.

As shown in Figure 1; a kind of multichannel water surface oil real-time monitoring device described in this utility model embodiment; it is specially shell 1, protective glass 2, light lens 3, light source optical filter 4, broad spectrum light source 5, multichannel fluorescent lens 6, multispectral sensing device driving plate 7, fluorescent optical filter group 8, multi channel detector 9, multi-passage signal processing plate 10; power supervisor 11, fluorescence shade 12 and light source shade 13.

As it is shown in figure 1, protection window and multichannel fluorescent lens are all located on shell body, light lens and multichannel fluorescent lens are towards same direction, and after light lens is positioned at protection window, light source optical filter is installed between light lens and broad spectrum light source. Fluorescent optical filter group and multi channel detector are mounted on multispectral sensing device and drive on plate, and fluorescent optical filter group is positioned at multi channel detector upper end, and multispectral sensing device drives plate to be positioned at multichannel fluorescent lens rear end.

In embodiment, shell 1 adopts 316L stainless steel material, has waterproof, the function such as antirust, explosion-proof.

Protective glass 2 adopts piezoid, it is possible to make ultraviolet spectra pass through.

Light lens 3 selects fused silica glass, has good transmitance within the scope of 200nm-400nm. Light source optical filter 4 is wide band pass filter, and free transmission range is in 200nm-400nm, and peak transmittance is better than 50%, completely switched off within the scope of 400nm-1200nm. Broad spectrum light source 5 preferred pulse xenon lamp, optional 20W xenon flash lamp, controlled to adjust glow frequency by multi-passage signal processing plate as required, it is achieved the modulation of light source. Light lens, light source optical filter and broad spectrum light source are connected as one by light source shade 13, it is prevented that light source light spectrum is revealed.

Multichannel fluorescent lens 6 is made up of multiple identical lens, can adopt quartz or K9 glass lens, have good transmitance in visible-range, and lens numbers can be arranged according to demand, may be configured as 6, but is not limited to 6. Fluorescent optical filter group 8 is made up of the narrow band pass filter of multiple different centre wavelengths, optical filter quantity is arranged according to demand, may be configured as 6, but is not limited to 6, bandwidth elects 10nm as, centre wavelength can elect 400nm, 420nm, 440nm successively as, 460nm, 480nm, 500nm, its peak transmittance is better than 50%.

Multi channel detector 9 is made up of multiple identical detectors, and detector selects large area array silicon photoelectric diode, has higher photoelectric transformation efficiency within the scope of 400nm-600nm.

Fluorescence shade 12 is installed, it is prevented that the crosstalk between fluorescence between every channel fluorescence lens and optical filter.

Multispectral sensing device drives, for the pretreatment to multi channel detector output current signal, including preposition amplification, filtering, the multispectral voltage signal demodulation of fluorescence.

Multi-passage signal processing plate 10, with DSP for core, can be selected for ADSP2191. For receiving the analog voltage signal that multispectral sensing device drives, digital signal is converted to by multichannel analog to digital conversion circuit, and through digital signal pretreatment, obtain fluorescence multispectral data, according to multispectral profile and spectral intensity, calculating is oil spilling occurrence degree and oil spill type, passes to host computer in real time eventually through external interface such as RS232, wireless communication interface etc. and does the process of further emergency advance warning.

Power supervisor 11 is broad spectrum light source 5, multispectral sensing device drives plate 7 and multi-passage signal processing plate 10 to provide corresponding power supply.

Multichannel water surface oil real-time monitoring device run time, often collect a multispectral data, be set to S (n) (n is signalling channel number, n=1,2,3 ...), calculate signal overall strength according to multispectral dataWhen signal overall strength is beyond the threshold value set, continue to judge further according to spectral shape information, it may be assumed that utilize signal overall strength to remove multispectral data, it is thus achieved that normalized spectrum S ' (n)=S (n)/S_T, utilize Spectral matching algorithm to be mated with the spectrum in oil fluorescence curve data base by normalization spectrum, when with the similarity of certain oil in storehouse higher than the value set, it is determined that there occurs oil spilling and export oil spill type, otherwise it is assumed that there is not oil spilling. Wherein, Spectral matching algorithm preference information discrete-spectrum angle matching algorithm.

Information is discrete-and the formula of spectrum angle matching algorithm is as follows:

SID_SA=SID*sin (SA), or SID_SA=SID*tan (SA)

$SID={\Σ}_{n=1}^{n=6}\left(S^{\′}\right(n)-R(n\left)\right)*\left(\log \right(S^{\′}\left(n\right))-\log \left(R\right(n))$

$SA=acos\left(\frac{{\Σ}_{n=1}^{n=6}{S}^{\′}\left(n\right)*R\left(n\right))}{\sqrt[2]{{\Σ}_{n=1}^{n=6}{S}^{\′}{\left(n\right)}^2}*\sqrt[2]{{\Σ}_{n=1}^{n=6}R{\left(n\right)}^2}}\right)$

In formula, R (n) is the reference spectra in oil fluorescence curve data base, and S ' (n) be that measurement obtains spectrum to be matched, R (n) and S ' (n) and is normalization spectrum.

A kind of multichannel water surface oil real-time monitoring device described in the utility model, adopts detection water surface oil fluorescence spectrum method, it is possible to rejects the impact of other impurity, the design of multi-channel structure in water, facilitates deciding on the kind of oil spilling, the generation of accurate early warning oil spilling.

The above, it it is only preferred embodiment of the present utility model, not this utility model is done any pro forma restriction, every any simple modification, equivalent variations and modification above example made according to technical spirit of the present utility model, all still falls within the scope of technical solutions of the utility model.

Claims (9)

1. a multichannel water surface oil real-time monitoring device; it is characterized in that; including sealing the shell of structure and being placed in excitation source passage and the multichannel fluorescence reception passage of enclosure; described excitation source passage and described multichannel fluorescence reception passage point to same direction; and the light source projects direction of corresponding described excitation source passage is provided with protective glass on the housing, and the direction of corresponding multichannel fluorescence reception channel reception light is provided with multichannel fluorescent lens on the housing.

2. a kind of multichannel water surface oil real-time monitoring device as claimed in claim 1, it is characterised in that

Described excitation source passage includes protective glass, light lens, light source optical filter and broad spectrum light source, and described protective glass, light lens, light source optical filter and broad spectrum light source are coaxially arranged in order.

3. a kind of multichannel water surface oil real-time monitoring device as claimed in claim 2, it is characterised in that

Also include light source shade, be arranged on the optical axis of described protective glass, light lens, light source optical filter and broad spectrum light source.

4. a kind of multichannel water surface oil real-time monitoring device as claimed in claim 1, it is characterised in that

Described multichannel fluorescence reception passage includes multichannel fluorescent lens, fluorescent optical filter group, multispectral sensing device driving plate and multi channel detector, and described multichannel fluorescence reception passage is coaxially arranged with described multi channel detector.

5. a kind of multichannel water surface oil real-time monitoring device as claimed in claim 4, it is characterised in that

Also include fluorescence shade, be arranged between described multichannel fluorescent lens and described multi channel detector.

6. a kind of multichannel water surface oil real-time monitoring device as claimed in claim 4, it is characterised in that

Also include multi-passage signal processing plate, be connected with described multi channel detector.

7. a kind of multichannel water surface oil real-time monitoring device as claimed in claim 4, it is characterised in that

Fluorescent optical filter group and multi channel detector are mounted on multispectral sensing device and drive on plate, and fluorescent optical filter group is positioned at multi channel detector upper end, and multispectral sensing device drives plate to be positioned at multichannel fluorescent lens rear end.

8. a kind of multichannel water surface oil real-time monitoring device as claimed in claim 1, it is characterised in that

Also including power supervisor, described power supervisor is that equipment is powered.

9. a kind of multichannel water surface oil real-time monitoring device as claimed in claim 2, it is characterised in that

Described protective glass adopts piezoid;

Described light lens selects fused silica glass, and transmitance is within the scope of 200nm-400nm;

Described light source optical filter is wide band pass filter, and free transmission range is in 200nm-400nm, and peak transmittance is higher than 50%.