Underwater simulation test method and system for laser deep-sea light

Abstract

The application discloses a kind of laser deep-sea lamp underwater simulation test method and system, it is related to deep-sea lighting technical field, the method includes: in different test environments respectively to light source is carried out illuminance test, to collect the test information of light source in different test environments, test information includes illuminance information, light spot information and irradiation distance information;Different test environments are obtained inherent optical quantity, inherent optical quantity includes scattering coefficient, absorption coefficient and received light power;According to test information and inherent optical quantity, illuminance characteristic relationship is constructed;The inherent optical quantity of target water body environment is obtained;According to illuminance characteristic relationship and the inherent optical quantity of target water body environment, the test information of light source in target water body environment is predicted.The application can effectively simulate the illuminance, light spot and irradiation distance etc. information of light source in different positions, different regions of deep sea.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of deep-sea lighting, in particular to a laser deep-sea lamp underwater simulation test method and system. BACKGROUND

[0002] With the development of deep-sea resource development and utilization technology, deep-sea exploration technology has attracted more and more attention. In the sea area 200 meters below the sea surface, the illuminance of visible light is less than 0.01% of the light illuminance on the surface, and the surrounding environment in the deep-sea area is pitch-black. Therefore, as a prerequisite for deep-sea exploration, the lighting source is crucial to improve the quality of deep-sea exploration. In deep-sea lighting, short-distance lighting can generally use LED, and long-distance lighting can preferentially use laser lighting.

[0003] For deep-sea lighting, it is necessary to test the deep-sea environment and laser lighting source in advance to obtain the illuminance, light spot and irradiation distance of the light source in the deep-sea environment, so as to design a light source that meets the lighting needs of a specific deep-sea environment. However, due to the complexity of the seabed environment and the limitation of test conditions, it is difficult to implement deep-sea testing of laser lighting sources, so as to ensure the lighting needs of different sea areas.

[0004] Therefore, it is necessary to develop a laser deep-sea lamp test method which is easy to operate and low in cost, so as to realize accurate testing of the laser deep-sea lamp. SUMMARY

[0005] The technical problem to be solved by the present application is to provide a laser deep-sea lamp underwater simulation test method and system, which can effectively simulate the illuminance, light spot and irradiation distance of the light source at different positions and different areas in the deep sea.

[0006] In order to solve the above technical problems, the present application provides a laser deep-sea lamp underwater simulation test method, comprising: performing illuminance test on the light source in different test environments to collect test information of the light source in different test environments, the test environments including air test environment and underwater test environment, and the test information including illuminance information, light spot information and irradiation distance information; obtaining inherent optical quantities of different test environments, the inherent optical quantities including scattering coefficient, absorption coefficient and received light power; constructing an illuminance characteristic relationship according to the test information and the inherent optical quantities; obtaining the inherent optical quantities of the target water body environment; and predicting the test information of the light source in the target water body environment according to the illuminance characteristic relationship and the inherent optical quantities of the target water body environment.

[0007] As an improvement of the above scheme, the step of testing the light source includes: positioning the light spot center of the light source when the light meter probe is at different distances from the light source; placing the light meter probe on the light spot center, and collecting the test information of the light source when the light meter probe is at different distances from the light source.

[0008] As an improvement of the above scheme, the step of positioning the light spot center of the light source when the light meter probe is at different distances from the light source includes: placing the light meter probe at a target distance from the light source; moving the position of the light meter probe in the horizontal direction, wherein the luminance information of the light source is collected once for each movement, and the horizontal position corresponding to the maximum luminance information during the movement in the horizontal direction is taken as the horizontal center position of the light spot center; moving the position of the light meter probe in the vertical direction, wherein the luminance information of the light source is collected once for each movement, and the vertical position corresponding to the maximum luminance information during the movement in the vertical direction is taken as the vertical center position of the light spot center; and constructing the light spot center of the light source at the current target distance according to the horizontal center position and the vertical center position.

[0009] As an improvement of the above scheme, the step of collecting the luminance information of the light source when the light meter probe is at different distances from the light source includes: collecting the light-on luminance information and the background luminance information of the light source when the light meter probe is at different distances from the light source; and calculating the luminance information of the light source according to the light-on luminance information and the background luminance information.

[0010] As an improvement of the above scheme, the step of collecting the light spot information of the light source when the light meter probe is at different distances from the light source includes: calculating the first attenuation information q1 of the light source according to the formula q1=N1×Q, wherein Q is the luminance information of the light source, and N1 is a first control coefficient and 0<N1<1; adjusting the distance between the light meter probe and the light source so that the light meter probe is at a position where the luminance information of the light source is the first attenuation information, and taking the position as a first reference position; and collecting the light spot diameter of the light source at the first reference position.

[0011] As an improvement of the above scheme, the step of collecting the irradiation distance information of the light source when the light meter probe is at different distances from the light source includes: calculating the second attenuation information q2 of the light source according to the formula q2=N2×Q, wherein Q is the luminance information of the light source, and N2 is a second control coefficient and 0<N2<1; adjusting the distance between the light meter probe and the light source so that the light meter probe is at a position where the luminance information of the light source is the second attenuation information, and taking the position as a second reference position; and collecting the distance between the second reference position and the light source.

[0012] As an improvement of the above scheme, when the target water environment and / or test environment is seawater, the calculation step of the absorption coefficient of seawater comprises: calculating the absorption coefficient a(λ) of seawater according to the formula a(λ)=a s (λ)+a h (λ)+a f (λ)+a I (λ), wherein a s (λ) is the absorption coefficient of pure seawater, a h (λ) is the absorption coefficient of colored soluble organic matter in seawater, a f (λ) is the absorption coefficient of phytoplankton in seawater, and a I (λ) is the absorption coefficient of non-pigment suspended particles in seawater.

[0013] As an improvement of the above scheme, when the target water environment and / or test environment is seawater, the calculation step of the scattering coefficient of seawater comprises: calculating the scattering coefficient β(λ) of seawater according to the formula β(λ)=β s (λ)+β f (λ)+β I (λ), wherein β s (λ) is the scattering coefficient of pure seawater, β f (λ) is the scattering coefficient of phytoplankton in seawater, and β I (λ) is the scattering coefficient of non-pigment suspended particles in seawater.

[0014] As an improvement of the above scheme, when the target water environment and / or test environment is seawater and only the attenuation of seawater to light is considered, the calculation step of the received light power underwater comprises: calculating the received light power Pr underwater according to the formula Pr=Pt*exp(-c(λ)*d), wherein Pt is the emitted light power, c(λ) is the attenuation coefficient of seawater, and d is the underwater transmission distance.

[0015] Correspondingly, the application also provides a laser deep-sea lamp underwater simulation test system, comprising: a test module, configured to perform illumination tests on light sources in different test environments respectively to collect test information of the light sources in different test environments, wherein the test information comprises illumination information, light spot information and illumination distance information; an optical quantity acquisition module, configured to acquire inherent optical quantities of different test environments and a target water environment, wherein the inherent optical quantities comprise scattering coefficients, absorption coefficients and received light powers; a construction module, configured to construct an illumination characteristic relationship according to the test information and the inherent optical quantities; and a prediction module, configured to predict test information of the light sources in the target water environment according to the illumination characteristic relationship and the inherent optical quantities of the target water environment.

[0016] The application has the following beneficial effects:

[0017] The present application can effectively obtain the illumination information, the light spot information and the irradiation distance information of the light source in the air and underwater by carrying out the illumination test on the light source in the test water body, so as to realize the effective association of the light source characteristics and the test environment; meanwhile, the present application also introduces the inherent optical quantity, associates the inherent optical quantity with the test environment, and thus constructs the illumination characteristic relationship based on the test information and the inherent optical quantity.

[0018] Correspondingly, the present application combines the inherent optical quantity of the deep sea with the illumination characteristic relationship for the area that cannot be reached in the deep sea, effectively predicts the illumination information, the light spot information and the irradiation distance information of the underwater light source of the light source in different positions and different areas in the deep sea, and is high in accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is an embodiment flow chart of the underwater simulation test method of the laser deep sea lamp of the present application;

[0020] Figure 2 is a structural schematic diagram of the test module in the present application;

[0021] Figure 3 is an embodiment structural schematic diagram of the underwater simulation test method of the laser deep sea lamp of the present application. DETAILED DESCRIPTION

[0022] In order to make the purpose, the technical scheme and the advantages of the present application more clear, the present application will be further described in detail below with reference to the drawings.

[0023] Reference Figure 1 , Figure 1 shows the embodiment of the underwater simulation test method of the laser deep sea lamp of the present application, which comprises:

[0024] S101, respectively carrying out the illumination test on the light source in different test environments to collect the test information of the light source in different test environments;

[0025] In the present application, the test information comprises the illumination information, the light spot information and the irradiation distance information, but is not limited thereto, and can be adjusted according to the actual situation;

[0026] It should be noted that the light source can be placed in a specific test module to carry out the illumination test. As shown in Figure 2 The test module comprises a shelf 12 for fixing the light source 11, an illuminometer 13, a propagation medium and a groove 14 for loading the propagation medium, wherein the light source 11 and the probe 131 of the illuminometer 13 are both arranged in the groove 14; during the test, the user can change the propagation medium in the groove 14 to realize the accurate construction of different test environments according to the actual situation.

[0027] In the present application, the test environment includes an air test environment and an underwater test environment; when the test environment is an air test environment, the propagation medium in the test module can be set as air, so that the air test environment is simulated to perform the illumination test, and the light source 11 can also be directly placed in a darkroom to perform the illumination test; when the test environment is an underwater test environment, water bodies can be loaded in the groove 14 (i.e., the propagation medium is set as water bodies), so that the underwater test environment is simulated to perform the illumination test.

[0028] Further, the step of performing the illumination test on the light source includes:

[0029] (1) positioning the light spot center of the light source when the light meter probe is at different distances from the light source;

[0030] Since the change of the placement angle of the propagation medium and the light source will affect the position of the light spot center of the light source, in order to more accurately collect the test information of the light source, the light spot center of the light source when the light meter probe is at different distances from the light source needs to be positioned in advance.

[0031] Specifically, the step of positioning the light spot center of the light source when the light meter probe is at different distances from the light source includes:

[0032] 1.1 placing the light meter probe at a position at a target distance from the light source;

[0033] 1.2 moving the position of the light meter probe along the horizontal direction, wherein each time the position is moved, the illumination information of the light source is collected once, and the horizontal position corresponding to the illumination information with the largest value in the process of moving along the horizontal direction is taken as the horizontal center position of the light spot center;

[0034] For example, the light meter probe is placed at a position 8 m away from the light source, and the light meter probe is made to face the center position of the light emitting surface of the light source; the current position of the light meter probe is taken as the reference position, the position of the light meter probe is moved to the left along the horizontal direction from the reference position, the distance of each movement is 0.25 m, and the illumination information of the light source under multiple tests is recorded; then the light meter probe returns to the reference position, the position of the light meter probe is moved to the right along the horizontal direction from the reference position, the distance of each movement is 0.25 m, and the illumination information of the light source under multiple tests is recorded; finally, the brightest position (the horizontal position corresponding to the illumination information with the largest value) is determined as the horizontal center position of the light spot center.

[0035] It should be noted that, during positioning, the method for obtaining the illumination information of the light source is as follows: first, the light-on illumination information of the light source is obtained, then the light source is turned off to obtain the background illumination information, and finally the difference between the light-on illumination information and the background illumination information is taken as the illumination information of the current position of the light source. For example, during the positioning process along the horizontal direction, the light-on illumination information and the background illumination information at different positions are shown in Table 1.

[0036] Table 1

[0037]

[0038] 1.3 Moving the position of the illuminometer probe along the vertical direction, wherein the illuminance information of the light source is collected once for each position moved, and the vertical position corresponding to the maximum value of the illuminance information during the movement along the vertical direction is taken as the longitudinal center position of the spot center;

[0039] For example, the illuminometer probe is placed at a position 8 m away from the light source, and the center position of the light emitting surface of the light source is directly opposite the illuminometer probe. The current position of the illuminometer probe is taken as the reference position, and the position of the illuminometer probe is moved upward along the vertical direction from the reference position. The distance moved each time is 0.25 m, and the illuminance information of the light source under multiple tests is recorded. Then, the illuminometer probe returns to the reference position, and the position of the illuminometer probe is moved downward along the vertical direction from the reference position. The distance moved each time is 0.25 m, and the illuminance information of the light source under multiple tests is recorded. Finally, the brightest position (the vertical position corresponding to the maximum value of the illuminance information) is determined as the longitudinal center position of the spot center.

[0040] Similarly, during positioning, the method for obtaining the illuminance information of the light source is as follows: first, the on-light illuminance information of the light source is obtained, then the light source is turned off to obtain the background illuminance information, and finally the difference between the on-light illuminance information and the background illuminance information is taken as the illuminance information of the current position of the light source. For example, during vertical positioning, the on-light illuminance information and the background illuminance information at different positions are shown in Table 2.

[0041] Table 2

[0042]

[0043] 1.4 Constructing the spot center of the light source at the current target distance according to the transverse center position and the longitudinal center position.

[0044] It should be noted that during positioning, there is no certain order between steps 1.2 and 1.3. Either step 1.2 is performed first and then step 1.3, or step 1.3 is performed first and then step 1.2, as long as the accurate positioning of the spot center can be achieved.

[0045] (2) Place the illuminometer probe on the spot center, and collect the test information of the light source when the illuminometer probe is at different distances from the light source.

[0046] Correspondingly, after completing the positioning of the spot center at each target distance, the illuminometer probe is placed on the spot center to perform testing to collect the test information of the light source.

[0047] Specifically, the step of collecting the illuminance information of the light source at different distances between the light source and the illuminance meter probe comprises:

[0048] 2.1.1 Collecting the light-on illuminance information and the background illuminance information of the light source at different distances between the light source and the illuminance meter probe;

[0049] 2.1.2 Calculating the illuminance information of the light source according to the light-on illuminance information and the background illuminance information.

[0050] It should be noted that the difference between the light-on illuminance information and the background illuminance information obtained when the illuminance meter probe is at the center of the light spot is the actual illuminance information of the light source. For example, the light-on illuminance information and the background illuminance information at different distances between the light source and the illuminance meter probe are shown in Table 3.

[0051] Table 3

[0052]

[0053] In addition, the step of collecting the light spot information of the light source at different distances between the light source and the illuminance meter probe comprises:

[0054] 2.2.1 Calculating the first attenuation information q1 of the light source according to the formula q1=N1×Q, wherein Q is the maximum illuminance information of the light source, and N1 is the first control coefficient and 0<N1<1;

[0055] Preferably, N1=50%, but not limited thereto, and can be adjusted according to the actual situation.

[0056] 2.2.2 Adjusting the distance between the illuminance meter probe and the light source so that the illuminance meter probe is at a position where the illuminance information of the light source is the first attenuation information, and taking the position as the first reference position;

[0057] 2.2.3 Collecting the light spot diameter of the light source at the first reference position.

[0058] For example, if the maximum illuminance information of the light source is 1328lx, the corresponding first attenuation information is 664lx (664=50%×1328); then, the illuminance meter probe is moved to the position where the illuminance information of the light source is 664lx; and finally, the light spot diameter at the position can be measured.

[0059] For another example, in different test environments, the maximum illuminance information, the first attenuation information and the light spot diameter are shown in Table 4.

[0060] Table 4

[0061]

[0062] That is, the present application can calculate the light spot size (i.e. the light spot diameter) according to the position where the illuminance is attenuated to 50% of the illuminance value.

[0063] In addition, the step of collecting the irradiation distance information of the light source at different distances between the probe of the illuminometer and the light source comprises:

[0064] 2.3.1 calculating the second attenuation information q2 of the light source according to the formula q2=N2xQ, wherein Q is the maximum illuminance information of the light source, and N2 is a second control coefficient and 0<N2<1;

[0065] Preferably, N2=10%, but not limited thereto, and can be adjusted according to actual conditions.

[0066] 2.3.2 adjusting the distance between the probe of the illuminometer and the light source so that the probe of the illuminometer is at a position where the illuminance information of the light source is the second attenuation information, and taking the position as a second reference position;

[0067] 2.3.3 collecting the distance between the second reference position and the light source.

[0068] For example, if the maximum illuminance information of the light source is 1328lx, the corresponding second attenuation information is 132.8lx (132.8=10%x1328); then, the probe of the illuminometer is moved to a position where the illuminance information of the light source is 132.8lx; finally, the distance between the position and the light source can be measured, and the distance is taken as the irradiation distance information of the light source.

[0069] S102, acquiring inherent optical quantities of different test environments;

[0070] Specifically, the inherent optical quantities include scattering coefficients, absorption coefficients and received light powers, but are not limited thereto, and can be adjusted according to actual conditions.

[0071] It should be noted that the absorption characteristics of seawater are closely related to the composition of substances contained in the seawater; and the absorption of light by seawater mainly comes from pure seawater, yellow substances, phytoplankton and non-pigment suspended particles, so when the target water body environment and / or the test environment is seawater, the step of calculating the absorption coefficient of seawater comprises: calculating the absorption coefficient a(λ) of seawater according to the formula a(λ)=a s (λ)+a h (λ)+a f (λ)+a I (λ), wherein a s (λ) is the absorption coefficient of pure seawater, a h (λ) is the absorption coefficient of colored soluble organic matter in seawater, a f (λ) is the absorption coefficient of phytoplankton in seawater, and a I (λ) is the absorption coefficient of non-pigment suspended particles in seawater.

[0072] Correspondingly, the scattering of seawater to light mainly comes from pure seawater, phytoplankton and non-pigment suspended particles, and the scattering of yellow substance is not considered because the yellow substance only has single absorption to light; therefore, when the target water environment and / or test environment is seawater, the calculation steps of the scattering coefficient of seawater include: calculating the scattering coefficient β(λ) of seawater according to the formula β(λ)=β s (λ)+β f (λ)+β I (λ), wherein β s (λ) is the scattering coefficient of pure seawater, β f (λ) is the scattering coefficient of phytoplankton in seawater, and β I (λ) is the scattering coefficient of non-pigment suspended particles in seawater.

[0073] In addition, when the target water environment and / or test environment is seawater and only the attenuation of seawater to light is considered, the calculation steps of the received light power underwater include: calculating the received light power Pr underwater according to the formula Pr=Pt*exp(-c(λ)×d), wherein Pt is the emitted light power, c(λ) is the attenuation coefficient of seawater, and d is the underwater transmission distance.

[0074] S103, constructing an illumination characteristic relationship according to the test information and the inherent optical quantity;

[0075] It should be noted that different test environments can correspond to different test information and inherent optical quantity, so that the illumination characteristic relationship can be constructed through a large number of tests; wherein the illumination characteristic relationship can be embodied by forming a curve or a table, but is not limited thereto, and can be adjusted according to actual conditions, as long as the effective record of the relationship among the test environment, the test information and the inherent optical quantity can be realized.

[0076] S104, obtaining the inherent optical quantity of the target water environment;

[0077] The method and steps of obtaining the inherent optical quantity of the target water environment are the same as those of step S102, which will not be repeated here.

[0078] S105, predicting the test information of the light source in the target water environment according to the illumination characteristic relationship and the inherent optical quantity of the target water environment.

[0079] Specifically, by comparing the inherent optical quantity of the target water environment with the illumination characteristic relationship constructed in step S103, the test information of the light source in the target water environment can be quickly simulated in the illumination characteristic relationship according to the inherent optical quantity of the target water environment, thereby solving the problem of building a test system in deep sea.

[0080] Therefore, the underwater simulation test system for the laser deep-sea lamp can effectively judge the illumination information, the light spot information and the irradiation distance information of the underwater light source by performing the luminaire illumination test on the test water body; meanwhile, the underwater simulation test system for the laser deep-sea lamp can simulate the illumination information, the light spot information and the irradiation distance information of the underwater light source in different positions and different areas in the deep sea by obtaining the inherent optical quantity and associating the data in the test environment with the data in the deep sea, and the accuracy is high.

[0081] Referring to Figure 3 , Figure 3 The specific structure of the underwater simulation test system 100 for the laser deep-sea lamp is shown, which comprises a test module 1, an optical quantity acquisition module 2, a construction module 3 and a prediction module 4. Specifically:

[0082] The test module 1 is used for performing the illumination test on the light source in different test environments respectively to collect the test information of the light source in different test environments;

[0083] The optical quantity acquisition module 2 is used for acquiring the inherent optical quantity of different test environments and target water body environments, and the inherent optical quantity comprises a scattering coefficient, an absorption coefficient and a received light power;

[0084] The construction module 3 is used for constructing the illumination characteristic relationship according to the test information and the inherent optical quantity;

[0085] The prediction module 4 is used for predicting the test information of the light source in the target water body environment according to the illumination characteristic relationship and the inherent optical quantity of the target water body environment.

[0086] The test module 1, the optical quantity acquisition module 2, the construction module 3 and the prediction module 4 will be described respectively as follows:

[0087] I. Test module

[0088] In the present application, the test information comprises the illumination information, the light spot information and the irradiation distance information, but it is not limited thereto, and can be adjusted according to the actual situation;

[0089] As shown in Figure 2 , the test module 1 comprises a shelf 12 for fixing the light source 11, an illuminometer 13, a propagation medium and a groove 14 for loading the propagation medium, wherein the light source 11 and the probe 131 of the illuminometer 13 are both arranged in the groove 14; during the test, the user can change the propagation medium in the groove 14 according to the actual situation to realize the accurate construction of different test environments.

[0090] Specifically, the test environment includes an air test environment and an underwater test environment; when the test environment is the air test environment, the propagation medium in the test module can be set as air, so that the air test environment is simulated to perform the illumination test, and the light source can also be directly placed in a darkroom to perform the illumination test; when the test environment is the underwater test environment, water bodies can be loaded in the groove 14 (i.e., the propagation medium is set as water bodies), so that the underwater test environment is simulated to perform the illumination test.

[0091] Correspondingly, the step of performing the illumination test on the light source includes: (1) positioning the spot center of the light source when the illuminometer probe is at different distances from the light source; and (2) placing the illuminometer probe on the spot center and collecting test information of the light source when the illuminometer probe is at different distances from the light source.

[0092] Specifically, the step of positioning the spot center of the light source when the illuminometer probe is at different distances from the light source includes: placing the illuminometer probe at a target distance from the light source; moving the position of the illuminometer probe in the horizontal direction, wherein the illumination information of the light source is collected once for each movement, and the horizontal position corresponding to the maximum illumination information in the horizontal movement is taken as the horizontal center position of the spot center; moving the position of the illuminometer probe in the vertical direction, wherein the illumination information of the light source is collected once for each movement, and the vertical position corresponding to the maximum illumination information in the vertical movement is taken as the vertical center position of the spot center; and constructing the spot center of the light source at the current target distance according to the horizontal center position and the vertical center position.

[0093] The step of collecting the illumination information of the light source when the illuminometer probe is at different distances from the light source includes: collecting the light-on illumination information and the background illumination information of the light source when the illuminometer probe is at different distances from the light source; and calculating the illumination information of the light source according to the light-on illumination information and the background illumination information.

[0094] The step of collecting the spot information of the light source when the illuminometer probe is at different distances from the light source includes: calculating first attenuation information q1 of the light source according to the formula q1=N1×Q, wherein Q is the maximum illumination information of the light source, and N1 is a first control coefficient and 0<N1<1; adjusting the distance between the illuminometer probe and the light source so that the illuminometer probe is at a position where the illumination information of the light source is the first attenuation information, and taking the position as a first reference position; and collecting the spot diameter of the light source at the first reference position.

[0095] The steps of collecting the illumination distance information of the light source when the illuminometer probe is at different distances from the light source include: calculating the second attenuation information q2 of the light source according to the formula q2 = N2 × Q, where Q is the maximum illuminance information of the light source, and N2 is the second control coefficient and 0 < N2 < 1; adjusting the distance between the illuminometer probe and the light source so that the illuminance information of the illuminometer probe is at the position of the second attenuation information, and taking this position as the second reference position; collecting the distance between the second reference position and the light source.

[0096] II. Optical quantity acquisition module

[0097] The intrinsic optical quantities include the scattering coefficient, absorption coefficient, and received optical power, but are not limited thereto and can be adjusted according to actual situations. Specifically:

[0098] When the target water environment and / or test environment is seawater, the calculation steps of the absorption coefficient of seawater include: calculating the absorption coefficient a(λ) of seawater according to the formula a(λ) = a s (λ) + a h (λ) + a f (λ) + a I (λ), where a s (λ) is the absorption coefficient of pure seawater, a h (λ) is the absorption coefficient of chromophoric dissolved organic matter in seawater, a f (λ) is the absorption coefficient of phytoplankton in seawater, a I (λ) is the absorption coefficient of non - pigment suspended particles in seawater.

[0099] When the target water environment and / or test environment is seawater, the calculation steps of the scattering coefficient of seawater include: calculating the scattering coefficient β(λ) of seawater according to the formula β(λ) = β s (λ) + β f (λ) + β I (λ), where β s (λ) is the scattering coefficient of pure seawater, β f (λ) is the scattering coefficient of phytoplankton in seawater, β I (λ) is the scattering coefficient of non - pigment suspended particles in seawater.

[0100] When the target water environment and / or test environment is seawater and only considering the attenuation of light by seawater, the calculation steps of the received optical power underwater include: calculating the received optical power Pr underwater according to the formula Pr = Pt * exp(-c(λ) × d), where Pt is the transmitted optical power, c(λ) is the attenuation coefficient of seawater, and d is the underwater transmission distance.

[0101] III. Construction module

[0102] It should be noted that different test environments can correspond to different test information and inherent optical quantities, so that by a large number of tests, the illuminance characteristic relationship can be constructed by the construction module; wherein the illuminance characteristic relationship can be embodied by forming a curve or a table, but is not limited thereto, and can be adjusted according to actual conditions, as long as the effective record of the relationship among the test environment, the test information and the inherent optical quantity can be realized.

[0103] IV. Prediction module

[0104] The prediction module compares the inherent optical quantity of the target water body environment with the illuminance characteristic relationship, so that the test information of the light source in the target water body environment can be quickly simulated according to the inherent optical quantity of the target water body environment in the illuminance characteristic relationship, thereby solving the problem of building a test system in the deep sea.

[0105] Therefore, by illuminance testing of the light source in the test water body, the illuminance information, the light spot information and the irradiation distance information of the light source in the air and underwater can be effectively obtained, so that the effective association of the light source characteristics and the test environment is realized; meanwhile, the inherent optical quantity is introduced, the inherent optical quantity is associated with the test environment, so that the illuminance characteristic relationship based on the test information and the inherent optical quantity is constructed; accordingly, for the area that cannot be reached in the deep sea, the inherent optical quantity of the deep sea is combined with the illuminance characteristic relationship, so that the illuminance information, the light spot information and the irradiation distance information of the underwater light source of the light source in different positions and different areas in the deep sea are effectively predicted, and the accuracy is high.

[0106] The above is the preferred embodiment of the present application, it should be noted that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, these improvements and refinements are also considered to be within the scope of protection of the present application.

Claims

1. A method for underwater simulation testing of a laser deep-sea light, characterized in that, The method comprises the following steps: performing illumination tests on the light source in different test environments to collect test information of the light source in different test environments, wherein the test environments include an air test environment and an underwater test environment, and the test information includes illumination information, spot information and irradiation distance information; obtaining inherent optical quantities of different test environments, wherein the inherent optical quantities include scattering coefficients, absorption coefficients and received light power; constructing an illumination characteristic relationship according to the test information and the inherent optical quantities; obtaining inherent optical quantities of a target water body environment; predicting test information of the light source in the target water body environment according to the illumination characteristic relationship and the inherent optical quantities of the target water body environment.

2. The method of claim 1, wherein the laser deep-sea light is a laser deep-sea light having a wavelength of 450 nm to 500 nm. The step of performing illumination tests on the light source comprises the following steps: positioning a spot center of the light source when the illuminometer probe is at different distances from the light source; placing the illuminometer probe on the spot center and collecting test information of the light source when the illuminometer probe is at different distances from the light source.

3. The underwater simulation test method for laser deep-sea lamps as described in claim 2, characterized in that, The step of positioning the spot center of the light source when the illuminometer probe is at different distances from the light source comprises the following steps: placing the illuminometer probe at a position at a target distance from the light source; moving the position of the illuminometer probe in a horizontal direction, wherein the illumination information of the light source is collected once for each movement of the position, and the horizontal position corresponding to the illumination information with the maximum value during the movement in the horizontal direction is taken as a horizontal center position of the spot center; moving the position of the illuminometer probe in a vertical direction, wherein the illumination information of the light source is collected once for each movement of the position, and the vertical position corresponding to the illumination information with the maximum value during the movement in the vertical direction is taken as a vertical center position of the spot center; constructing the spot center of the light source at the current target distance according to the horizontal center position and the vertical center position.

4. The underwater simulation test method for laser deep-sea lamps as described in claim 2, characterized in that, The step of collecting the illumination information of the light source when the illuminometer probe is at different distances from the light source comprises the following steps: collecting the on-light illumination information and the background illumination information of the light source when the illuminometer probe is at different distances from the light source; calculating the illumination information of the light source according to the on-light illumination information and the background illumination information.

5. The method of claim 4, wherein the laser deep-sea light is a laser deep-sea light having a wavelength of 450 nm to 500 nm. The step of collecting the spot information of the light source when the illuminometer probe is at different distances from the light source comprises the following steps: calculating first attenuation information q1 of the light source according to the formula q1=N1×Q, wherein Q is the maximum illumination information of the light source, and N1 is a first control coefficient and 0 adjusting the distance between the illuminometer probe and the light source so that the illuminometer probe is at a position where the illumination information of the light source is the first attenuation information, and taking the position as a first reference position; collecting the spot diameter of the light source at the first reference position.

6. The method of claim 2, wherein the laser deep-sea light is a laser diode. 5 The step of collecting the irradiation distance information of the light source when the illuminometer probe is at different distances from the light source comprises the following steps: calculating second attenuation information q2 of the light source according to the formula q2=N2×Q, wherein Q is the maximum illumination information of the light source, and N2 is a second control coefficient and 0 adjusting the distance between the illuminometer probe and the light source so that the illuminometer probe is at a position where the illumination information of the light source is the second attenuation information, and taking the position as a second reference position; The distance between the second reference position and the light source is collected.

7. The method of claim 1, wherein the laser deep-sea light is a laser deep-sea light having a wavelength of 450 nm to 500 nm. When the target water body environment and / or the test environment is seawater, the calculation of the absorption coefficient of seawater comprises: According to the formula a(λ) = a s (λ) + a h (λ) + a f (λ) + a I (λ), the absorption coefficient a(λ) of seawater is calculated, wherein a s (λ) is the absorption coefficient of pure seawater, a h (λ) is the absorption coefficient of colored soluble organic matter in seawater, a f (λ) is the absorption coefficient of phytoplankton in seawater, and a I (λ) is the absorption coefficient of non-pigment suspended particles in seawater.

8. The method of claim 1, wherein the laser deep-sea light is a laser deep-sea light having a wavelength of 450 nm to 500 nm. When the target water body environment and / or the test environment is seawater, the calculation of the scattering coefficient of seawater comprises: According to the formula β(λ) = β s (λ) + β f (λ) + β I (λ), the scattering coefficient β(λ) of seawater is calculated, wherein β s (λ) is the scattering coefficient of pure seawater, β f (λ) is the scattering coefficient of phytoplankton in seawater, and β I (λ) is the scattering coefficient of non-pigment suspended particles in seawater.

9. The underwater simulation test method for laser deep-sea lamps as described in claim 1, characterized in that, When the target water body environment and / or the test environment is seawater and only the attenuation of seawater to light is considered, the calculation of the received light power underwater comprises: According to the formula Pr=Pt*exp(-c(λ)*d), the received light power underwater Pr is calculated, wherein Pt is the emitted light power, c(λ) is the attenuation coefficient of seawater, and d is the underwater transmission distance.

10. A laser deep-sea light underwater analog test system, characterized in that, Comprise: The test module is used for carrying out illumination tests on the light source in different test environments respectively to collect test information of the light source in different test environments, and the test information comprises illumination information, light spot information and illumination distance information; The optical quantity acquisition module is used for acquiring inherent optical quantities of different test environments and the target water body environment, and the inherent optical quantities comprise a scattering coefficient, an absorption coefficient and a received light power; The construction module is used for constructing an illumination characteristic relationship according to the test information and the inherent optical quantities; The prediction module is used for predicting test information of the light source in the target water body environment according to the illumination characteristic relationship and the inherent optical quantities of the target water body environment.

Images