CN108333122B - Submarine substrate interface underwater spectrum measurement system and measurement method - Google Patents
Submarine substrate interface underwater spectrum measurement system and measurement method Download PDFInfo
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- CN108333122B CN108333122B CN201810125819.9A CN201810125819A CN108333122B CN 108333122 B CN108333122 B CN 108333122B CN 201810125819 A CN201810125819 A CN 201810125819A CN 108333122 B CN108333122 B CN 108333122B
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Abstract
The invention provides a submarine substrate interface underwater spectral measurement system and a measurement method, which relate to the technical field of water spectral measurement, and comprise an underwater measurement box and detection equipment connected with the underwater measurement box; the underwater measuring box is a sealed box body, and a microcomputer, a first spectrometer and a second spectrometer which are connected with the microcomputer are packaged in the sealed box body; the detection device comprises a first optical probe, a second optical probe and a depth probe, wherein the second optical probe is provided with a white board; the first optical probe is connected with the first spectrometer, and the second optical probe is connected with the second spectrometer. According to the submarine substrate interface underwater spectrum measurement system and the measurement method provided by the embodiment of the invention, the white board is used as a reference, and the reflectivity of the target object to be measured is calculated, so that the influence of other unknown variables is removed, and more accurate detection results and data can be obtained.
Description
Technical Field
The invention relates to the technical field of water body spectral measurement, in particular to a submarine substrate interface underwater spectral measurement system and a submarine substrate interface underwater spectral measurement method.
Background
Ocean technology is one of three advanced scientific exploration fields of the 21 st century of human beings. With the development of related technologies using optics, optoelectronics, computers, and the like, humans have been able to observe the ocean in real time using various optical instruments. In recent ten years, ocean optical instruments are rapidly developed, and the technologies of spectrometers used for observing different target objects are different, such as an imaging spectrometer used for remote sensing and a terrestrial object spectrometer used for land measurement. The existence of the water fluctuation corresponding to the ocean target provides a new technical requirement for the spectral monitoring research on the surface of the ocean water and the interior of the seawater. The development of ocean technology, the research and development of high and new equipment and the improvement of long-term ocean observation and forecasting capacity are highly emphasized by all countries in the world.
The change of the transmission characteristics of the marine optical radiation influences the radiation balance of a sea surface-atmosphere system and the activity of underwater organisms, and has important significance in the global change research. Radiation transmission change caused by sunlight refraction or reflection at a sea special layer-sea-air interface or a seabed layer records change information of different types of sea interfaces (such as sea white crown, oil spill pollution, seabed substrate types of seaweed, coral and the like), and provides an important basis for monitoring the marine ecological environment by a hyperspectral means, sea surface target object identification, substrate type fine classification and the like.
However, the existing instrumentation is also difficult to meet the required measurement accuracy and synchronization measurement requirements.
Disclosure of Invention
In view of this, the present invention provides a system and a method for measuring an underwater spectrum at an interface of a seabed sediment, so as to solve the technical problem that the required measurement accuracy is difficult to meet with the instruments and equipment in the prior art.
In a first aspect, an embodiment of the present invention provides an underwater spectrum measurement system for a seabed sediment interface, where the system includes an underwater measurement box and a detection device connected to the underwater measurement box; the underwater measuring box is a sealed box body, and a microcomputer, a first spectrometer and a second spectrometer which are connected with the microcomputer are packaged in the sealed box body; the detection equipment is used for underwater detection and comprises a first optical probe, a second optical probe and a depth probe, wherein the second optical probe is provided with a white board; the first optical probe is connected with the first spectrometer, and the second optical probe is connected with the second spectrometer; the depth probe is connected with the microcomputer; the first spectrometer collects a digital spectrum signal of a target object to be detected through the first optical probe and sends the digital spectrum signal of the target object to be detected to the microcomputer; the second spectrometer collects the digital spectrum signal of the white board through the second optical probe and sends the digital spectrum signal of the white board to the microcomputer; the depth probe is used for detecting the underwater depths of the target object to be detected and the whiteboard so as to keep the underwater depths of the target object to be detected and the whiteboard consistent; the microcomputer is used for receiving the digital spectrum signal of the target object to be detected and the digital spectrum signal of the white board, calculating the reflectivity of the target object to be detected, and storing the digital spectrum signal of the target object to be detected, the digital spectrum signal of the white board and the reflectivity in the database.
With reference to the first aspect, an embodiment of the present invention provides a first possible implementation manner of the first aspect, where the detection device further includes a camera; the camera is connected with the microcomputer; the camera is used for collecting underwater image information according to a preset time interval and transmitting the image information to the microcomputer; wherein the image information comprises pictures and/or videos; the microcomputer is also used for carrying out time matching on the image information, the digital spectral signal of the target object to be detected and the digital spectral signal of the white board, which are acquired in the time interval, so that the staff can obtain the spectral signal of the current water body according to the time interval and the image information.
With reference to the first aspect, an embodiment of the present invention provides a second possible implementation manner of the first aspect, where the system further includes an auxiliary measurement module, the auxiliary measurement module is connected to the microcomputer, and includes a temperature sensor and a GPS positioning device; the temperature sensing device of the temperature sensor is arranged on the outer surface of the underwater measuring box and used for measuring the temperature of the water body and sending the temperature of the water body to the microcomputer; the GPS positioning module is arranged in the underwater measuring box and used for collecting the position information of the underwater measuring box.
With reference to the first aspect, an embodiment of the present invention provides a third possible implementation manner of the first aspect, where the system further includes a display; the display is arranged in the underwater measuring box, is connected with the microcomputer and is used for displaying data stored by the microcomputer.
With reference to the third possible implementation manner of the first aspect, an embodiment of the present invention provides a fourth possible implementation manner of the first aspect, wherein the display is disposed outside the underwater surveying box and on the water surface; the display is connected with the microcomputer through a data line and is used for displaying data stored by the microcomputer.
With reference to the first aspect, an embodiment of the present invention provides a fifth possible implementation manner of the first aspect, where the whiteboard is disposed on a support frame, and the support frame is a retractable support frame; the white board is connected with the support frame through a rotatable support.
With reference to the fifth possible implementation manner of the first aspect, an embodiment of the present invention provides a sixth possible implementation manner of the first aspect, wherein the whiteboard is further provided with an inclination sensor, and the inclination sensor is connected to the microcomputer and is configured to detect an inclination angle of the whiteboard; the microcomputer is also used for collecting the optical angle of the digital spectrum signal of the target object to be detected, and controlling the rotatable support to rotate according to the optical angle and the inclination angle detected by the inclination angle sensor so as to enable the inclination angle of the white board to be consistent with the optical angle.
With reference to the first aspect, an embodiment of the present invention provides a seventh possible implementation manner of the first aspect, where the system further includes a watertight button; the watertight button is connected with the microcomputer and is used for controlling the opening and closing states of the system; wherein, the watertight button sets up the surface at the underwater survey case.
With reference to the first aspect, an embodiment of the present invention provides an eighth possible implementation manner of the first aspect, wherein the first optical probe and the second optical probe are high-brightness probes made of glass.
In a second aspect, the embodiment of the present invention further provides a method for measuring an underwater spectrum of an interface of a seabed substrate, which is applied to the underwater spectrum measuring system of an interface of a seabed substrate in the first aspect; the method comprises the following steps: the first spectrometer collects a digital spectrum signal of a target object to be detected through the first optical probe and sends the digital spectrum signal of the target object to be detected to the microcomputer; the second spectrometer collects the digital spectrum signal of the white board through the second optical probe and sends the digital spectrum signal of the white board to the microcomputer; the microcomputer detects the underwater depths of the target object to be detected and the whiteboard through the depth probe so as to keep the underwater depths of the target object to be detected and the whiteboard consistent; the microcomputer receives the digital spectrum signal of the target object to be detected and the digital spectrum signal of the white board, calculates the reflectivity of the target object to be detected, and stores the digital spectrum signal of the target object to be detected, the digital spectrum signal of the white board and the reflectivity in the database.
The embodiment of the invention has the following beneficial effects:
according to the underwater spectrum measurement system and the measurement method for the interface of the seabed sediment, provided by the embodiment of the invention, the microcomputer and the spectrometer are arranged in the underwater measurement box, so that the spectrometer can collect digital spectrum signals of a target object to be measured and the white board through the optical probe, send the digital spectrum signals of the target object to be measured and the white board to the microcomputer, and calculate the reflectivity of the target object to be measured by taking the white board as a reference, thereby removing the influence of other unknown variables and obtaining more accurate detection results and data.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a block diagram of a submarine substrate interface underwater spectrum measurement system according to an embodiment of the present invention;
FIG. 2 is a block diagram of another submarine substrate interface underwater spectrum measurement system according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an interface underwater spectrum measurement system for a seabed sediment according to an embodiment of the present invention;
fig. 4 is a flowchart of an underwater spectrum measurement method for an interface of a seabed sediment according to an embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In general, the composition structure and content changes of chlorophyll, silt, yellow substances and the like in the ocean water are important factors influencing the light radiation distribution of the water, and different substrate types such as seafloor coral, seaweed and substrate sludge in optical shallow water directly influence the water surface spectrum change characteristics. The on-site hyperspectral radiometric measurement is the basis for improving the quantitative remote sensing precision of ocean water color, enhances the accumulation and research of hyperspectral observation data of different substrate types, and is also the key for realizing the remote sensing monitoring of coastal zones and the fine identification of the substrate types, and the water substrate types and the reflection characteristic changes thereof are important basic contents for influencing the underwater spectral measurement of the seabed substrate interface. The reflected light from the sea floor at the reef or shoal contributes a significant proportion of the spectral radiation from the sea site. The method is an important basic work for strengthening the high-spectrum monitoring capability of the coastal zone in China. Based on the above, the embodiment of the invention provides an underwater spectral measurement system and a measurement method for a seabed sediment interface, so as to perform spectral radiation measurement on a water body.
For the convenience of understanding the embodiment, a detailed description will be given to an underwater spectrum measurement system of an interface of a seabed sediment disclosed by the embodiment of the invention.
The first embodiment is as follows:
the embodiment of the invention provides a submarine substrate interface underwater spectrum measurement system, and a structural block diagram of the submarine substrate interface underwater spectrum measurement system shown in fig. 1 comprises: an underwater measurement box 10 and a detection device 20 connected to the underwater measurement box 10;
during specific implementation, the underwater measuring box is a sealed box body, and a microcomputer 101, a first spectrometer 102 and a second spectrometer 103 which are connected with the microcomputer 101 are packaged in the sealed box body;
the detection device 20 is used for underwater detection and comprises a first optical probe 201, a second optical probe 202 and a depth probe 203, wherein the second optical probe 202 is provided with a white board 204; the first optical probe 201 is connected with the first spectrometer 102, and the second optical probe 202 is connected with the second spectrometer 103; the depth probe 203 is connected with the microcomputer 101;
the first spectrometer 102 collects a digital spectrum signal of a target object to be detected through the first optical probe 201, and sends the digital spectrum signal of the target object to be detected to the microcomputer 101; the second spectrometer 103 collects the digital spectrum signal of the whiteboard 204 through the second optical probe 202, and sends the digital spectrum signal of the whiteboard 204 to the microcomputer 101; the depth probe 203 is used for detecting the underwater depth of the target object to be detected and the whiteboard so as to keep the underwater depth of the target object to be detected and the whiteboard consistent;
the microcomputer 101 is configured to receive the digital spectrum signal of the target object to be detected and the digital spectrum signal of the whiteboard, calculate the reflectivity of the target object to be detected, and store the digital spectrum signal of the target object to be detected, the digital spectrum signal of the whiteboard, and the reflectivity in the database.
According to the underwater spectrum measurement system for the interface of the seabed sediment, provided by the embodiment of the invention, the microcomputer and the spectrometer are arranged in the underwater measurement box, so that the spectrometer can acquire digital spectrum signals of a target object to be measured and the white board through the optical probe, and meanwhile, the underwater depths of the target object to be measured and the white board are detected through the depth probe, so that the underwater depths of the target object to be measured and the white board are kept consistent; and the digital spectrum signals of the target object to be detected and the white board are sent to the microcomputer, and the white board is used as a reference to calculate the reflectivity of the target object to be detected, so that the influence of other unknown variables is removed, and more accurate detection results and data can be obtained.
In particular, the first spectrometer and the second spectrometer adopted in the embodiment of the invention are hyperspectral measuring instruments, and the hyperspectral measuring instruments have higher resolution and have the effect of lifting weight in the field of water body measurement, so that the hyperspectral measuring instruments can be suitable for synchronous observation of measurement of optical characteristics such as field sea surface background radiation, submarine coral float grass and the like, and in the aspect of hyperspectral measurement, the requirement of visible light band continuous spectral measurement is met, and therefore, the spectral resolution is generally 1 nm.
In specific implementation, the first optical probe and the second optical probe are high-brightness probes made of glass materials and are respectively used for collecting digital spectrum signals of objects to be detected with unknown reflectivity, such as sediment, coral or seaweed, and digital spectrum signals of white boards with known reflectivity.
Further, fig. 2 shows a block diagram of another submarine substrate interface underwater spectrum measurement system provided by the embodiment of the invention.
As shown in fig. 2, in addition to the structure shown in fig. 1, in the submarine substrate interface underwater spectrum measurement system according to the embodiment of the present invention, the detection apparatus further includes a camera 205; the camera 205 is connected with the microcomputer 101; the camera is used for collecting underwater image information according to a preset time interval and transmitting the image information to the microcomputer; wherein the image information comprises pictures and/or videos; the microcomputer is also used for carrying out time matching on the image information, the digital spectral signal of the target object to be detected and the digital spectral signal of the white board, which are acquired in the time interval, so that the staff can obtain the spectral signal of the current water body according to the time interval and the image information.
For example, the camera periodically acquires video information under water, and the time parameter of the video information can be matched with the digital spectrum signals acquired by the first optical probe and the second optical probe in time, so that the staff can know the corresponding target object spectrum signals to be detected according to time and pictures, for example, the video display probe taken in the first time period acquires the spectrum signals of coral, the video display probe taken in the second time period acquires the spectrum signals of seaweed, and the like.
Meanwhile, in order to improve the overall performance and certain necessary environmental parameter measurement of the submarine substrate interface underwater spectrum measurement system, the system further comprises an auxiliary measurement module 206, wherein the auxiliary measurement module 206 is connected with the microcomputer 101 and comprises a temperature sensor 206a and a GPS positioning device 206 b; the temperature sensing device of the temperature sensor 206a is arranged on the outer surface of the underwater measuring box and used for measuring the temperature of the water body and sending the temperature of the water body to the microcomputer; the GPS positioning device 206b is disposed in the underwater measurement box and is used for acquiring position information of the underwater measurement box.
Further, the system also includes a display 207; the display 207 is arranged in the underwater measuring box, is connected with the microcomputer 101 and is used for displaying data stored by the microcomputer.
Considering that the common workers pull the underwater measuring box back to the shore or the ship for operation after the acquisition work is finished, the display can also be arranged outside the underwater measuring box and positioned on the water surface, such as a working room on the ship or on the shore; the display is connected with the microcomputer through a data line and is used for displaying data stored by the microcomputer. The setting mode of the specific display can be set according to the actual situation, which is not limited in the embodiment of the present invention.
In a specific implementation, since the whiteboard provided in the embodiment of the present invention is used as a reference object to perform underwater spectrum measurement on an interface of a seabed sediment, the depth and the measurement angle of the whiteboard should be consistent with those of a target object to be measured, and therefore, the whiteboard may be disposed on a support frame (not shown in fig. 2), which is a retractable support frame; the white board is connected with the support frame through a rotatable support. Specifically, the telescopic support frame is used for ensuring that the depths of the white board and a target object to be detected are kept consistent, the white board and the support frame are connected through the rotatable support frame, an included angle between the white board and the second optical probe can be changed, the included angle is 90 degrees under normal conditions, when the first optical probe collects a spectrum signal of the target object at a certain inclination angle, the white board needs to be rotated to the same angle, and the reflectivity of the white board under different angles is known; in addition, in order to record the rotation angle of the whiteboard, the whiteboard is further provided with an inclination angle sensor 208, and the inclination angle sensor 208 is connected with the microcomputer 101 and used for detecting the inclination angle of the whiteboard; the microcomputer is also used for collecting the optical angle of the digital spectrum signal of the target object to be detected, and controlling the rotatable support to rotate according to the optical angle and the inclination angle detected by the inclination angle sensor so as to enable the inclination angle of the white board to be consistent with the optical angle.
Further, in order to facilitate the control of the underwater spectrum measurement system of the interface of the seabed sediment by workers, the system also comprises a watertight button 209; the watertight button is connected with the microcomputer 101 and is used for controlling the opening and closing states of the system; in a specific implementation, the watertight button can be arranged on the outer surface of the underwater measuring box, and a diver operates the starting and the closing of the underwater spectrum measuring system of the seabed sediment interface, or the watertight button is arranged on water, such as a working chamber on a ship or on the shore, and can control the starting operation without diving; alternatively, it can be arranged both underwater and above water to increase the flexibility of control.
Example two:
on the basis of the above embodiment, the embodiment of the present invention further provides an underwater spectrum measurement method for an interface of a seabed substrate, which is applied to the underwater spectrum measurement system for an interface of a seabed substrate described in the first embodiment; in order to facilitate understanding of the method for measuring the underwater spectrum of the interface of the seabed sediment according to the embodiment of the invention, on the basis of the above fig. 1 and fig. 2, an embodiment of the invention further provides a structural schematic diagram of the system for measuring the underwater spectrum of the interface of the seabed sediment, as shown in fig. 3, the system comprises a microcomputer, and a display, a depth probe and a camera which are connected with the microcomputer, and further comprises a first spectrometer DN1 and a second spectrometer DN2, the first spectrometer DN1 and the second spectrometer DN2, the display, the depth probe and the camera are all connected with the microcomputer, the first spectrometer DN1 measures the digital spectrum signal of the object to be measured, such as silt, coral or seaweed, through a first optical probe, and the second spectrometer DN2 measures the digital spectrum signal of a white board through a second optical probe, wherein the white board is a standard white board with known reflectivity and is retractable and rotatable, and enabling the measurement depth and the measurement intersection to be consistent with the target object to be measured.
Specifically, fig. 4 shows a flow chart of a method for underwater spectroscopy of an interface of a seabed substrate, the method comprising the steps of:
step S402, the first spectrometer collects a digital spectrum signal of a target object to be detected through the first optical probe and sends the digital spectrum signal of the target object to be detected to the microcomputer;
step S404, the second spectrometer collects the digital spectrum signal of the white board through the second optical probe and sends the digital spectrum signal of the white board to the microcomputer;
step S406, the microcomputer detects the underwater depths of the target object to be detected and the whiteboard through the depth probe so as to keep the underwater depths of the target object to be detected and the whiteboard consistent;
specifically, if the underwater depth is inconsistent, the depth of the whiteboard can be adjusted in a manner of adjusting the telescopic support frame, so that the underwater depth of the target object to be measured and the whiteboard is kept consistent.
Step S408, the microcomputer receives the digital spectrum signal of the target object to be detected and the digital spectrum signal of the white board, calculates the reflectivity of the target object to be detected, and stores the digital spectrum signal of the target object to be detected, the digital spectrum signal of the white board and the reflectivity in a database.
In specific implementation, the underwater spectrum measurement of the interface of the seabed sediment is generally divided into three cases: firstly, under the condition of very deep water, namely a deeper water area, sunlight cannot irradiate the water bottom, at the moment, a target to be detected is a water body (the water body comprises water, silt, algae, coral and the like), and a water body spectrum signal (simplified representation is A) obtained by performing spectrum acquisition on the water body can reflect the micro distribution condition of the silt, the algae and the like in the water; secondly, under the condition that the light energy near the shore directly reaches the water bottom, the target object to be detected is a substrate (sediment, coral and the like of a water bottom layer), and the substrate is subjected to spectrum acquisition to obtain a substrate spectrum signal (simplified representation is B); third, based on the second case, but with knowledge of the water information of shallow banks (abbreviated as C), it is necessary to remove noise: c is A-B; under the three conditions, the spectral signal of the target object to be detected can be obtained according to the digital spectral signals acquired by the first optical probe and the second optical probe and the specific linear relation.
Specifically, the calculation may be performed in the following manner:
the digital spectrum signals collected by the first optical probe and the second optical probe are represented by DN1 and DN2 respectively, wherein DN1 and DN2 are digital spectrum signals capable of being read on a spectrometer, generally, the wavelength range is 400-700 nm, and the digital spectrum signals can be represented by formula (1):
the F is the incident light intensity of the sun, and because the depths, angles and environments of the white board and the target object to be detected are the same, the incident light intensities corresponding to the target object to be detected and the white board are the same and are both F;
Ris prepared fromThe reflectivity of the target object to be detected is unknown; rHas already been used forIs the reflectivity of the whiteboard, is known; from the formula (1) R can be derivedIs prepared fromAnd RHas already been used forIs expressed by the following formula (2):
the reflectance R of the target to be measured can be obtained from the formula (2)Is prepared from＝DN1/(DN2×RHas already been used for) The significance of the reflectivity is obtained, and the health state of the growth of algae in the water body and the like can be judged.
After acquiring data such as digital spectral signals of the target object to be detected, digital spectral signals of the white board, reflectivity and the like, the staff can perform subsequent water body analysis, for example, deep research on sea surface wave amplitude, life and extinction of ocean white crowns and the like, and valuable data can be provided.
According to the underwater spectrum measurement method for the interface of the seabed sediment, provided by the embodiment of the invention, the microcomputer and the spectrometer are arranged in the underwater measurement box, so that the spectrometer can collect digital spectrum signals of a target object to be measured and the white board through the optical probe, the digital spectrum signals of the target object to be measured and the white board are sent to the microcomputer, the white board is used as a reference, the reflectivity of the target object to be measured is calculated, the influence of other unknown variables is removed, and more accurate detection results and data can be obtained.
The underwater spectrum measurement method for the interface of the seabed sediment provided by the embodiment of the invention has the same technical characteristics as the underwater spectrum measurement system for the interface of the seabed sediment provided by the embodiment, so that the same technical problems can be solved, and the same technical effect can be achieved.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process of the method described above may refer to the corresponding process in the foregoing embodiment, and is not described herein again.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that the following embodiments are merely illustrative of the present invention, and not restrictive, and the scope of the present invention is not limited thereto: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An underwater spectrum measurement system of a seabed sediment interface is characterized by comprising an underwater measurement box and a detection device connected with the underwater measurement box;
the underwater measuring box is a sealed box body, and a microcomputer, a first spectrometer and a second spectrometer which are connected with the microcomputer are packaged in the sealed box body;
the detection equipment is used for underwater detection and comprises a first optical probe, a second optical probe and a depth probe, wherein the second optical probe is provided with a white board; the first optical probe is connected with the first spectrometer, the second optical probe is connected with the second spectrometer, and the depth probe is connected with the microcomputer;
the first spectrometer collects a digital spectrum signal of a target object to be detected through the first optical probe and sends the digital spectrum signal of the target object to be detected to the microcomputer; the second spectrometer collects the digital spectrum signal of the white board through the second optical probe and sends the digital spectrum signal of the white board to the microcomputer; the depth probe is used for detecting the underwater depths of the target object to be detected and the white board so as to keep the underwater depths of the target object to be detected and the white board consistent;
the microcomputer is used for receiving the digital spectrum signal of the target object to be detected and the digital spectrum signal of the white board, calculating the reflectivity of the target object to be detected, and storing the digital spectrum signal of the target object to be detected, the digital spectrum signal of the white board and the reflectivity in a database.
2. The system of claim 1, wherein the detection device further comprises a camera; the camera is connected with the microcomputer;
the camera is used for collecting underwater image information according to a preset time interval and transmitting the image information to the microcomputer; wherein the image information comprises pictures and/or videos;
the microcomputer is also used for carrying out time matching on the image information, the digital spectral signal of the target object to be detected and the digital spectral signal of the white board, which are acquired in the time interval, so that a worker can acquire the spectral signal of the current water body according to the time interval and the image information.
3. The system of claim 1, further comprising an auxiliary measurement module, said auxiliary measurement module being connected to said microcomputer and comprising a temperature sensor and a GPS positioning device;
the temperature sensing device of the temperature sensor is arranged on the outer surface of the underwater measuring box and used for measuring the temperature of the water body and sending the temperature of the water body to the microcomputer;
the GPS positioning module is arranged in the underwater measuring box and used for acquiring the position information of the underwater measuring box.
4. The system of claim 1, further comprising a display; the display is arranged in the underwater measuring box, is connected with the microcomputer and is used for displaying data stored by the microcomputer.
5. The system of claim 4, wherein the display is disposed outside the underwater measurement box and on the water surface; the display is connected with the microcomputer through a data line and used for displaying the data stored by the microcomputer.
6. The system of claim 1, wherein the whiteboard is disposed on a support frame, the support frame being a retractable support frame; the white board is connected with the support frame through a rotatable support.
7. The system according to claim 6, wherein the whiteboard is further provided with an inclination sensor, and the inclination sensor is connected with the microcomputer and is used for detecting the inclination angle of the whiteboard;
the microcomputer is also used for collecting the optical angle of the digital spectrum signal of the target object to be detected, and controlling the rotatable support to rotate according to the optical angle and the inclination angle detected by the inclination angle sensor so as to enable the inclination angle of the white board to be consistent with the optical angle.
8. The system of claim 1, further comprising a watertight button; the watertight button is connected with the microcomputer and used for controlling the opening and closing states of the system;
wherein the watertight button is arranged on the outer surface of the underwater measuring tank.
9. The system of claim 1, wherein the first optical probe and the second optical probe are high brightness probes of glass.
10. An underwater spectrum measurement method for an interface of a seabed substrate is characterized by being applied to the underwater spectrum measurement system for the interface of the seabed substrate of any one of claims 1 to 9; the method comprises the following steps:
the first spectrometer collects a digital spectrum signal of a target object to be detected through a first optical probe and sends the digital spectrum signal of the target object to be detected to the microcomputer;
the second spectrometer collects the digital spectrum signal of the white board through a second optical probe and sends the digital spectrum signal of the white board to the microcomputer;
the microcomputer detects the underwater depths of the target object to be detected and the white board through a depth probe so as to keep the underwater depths of the target object to be detected and the white board consistent;
the microcomputer receives the digital spectrum signal of the target object to be detected and the digital spectrum signal of the white board, calculates the reflectivity of the target object to be detected, and stores the digital spectrum signal of the target object to be detected, the digital spectrum signal of the white board and the reflectivity in a database.
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| CN109738394A (en) * | 2018-11-30 | 2019-05-10 | 北京航空航天大学 | A kind of sandy type bottom spectrum direction reflection characteristic analogy method |
| CN111474122B (en) * | 2020-04-21 | 2022-12-20 | 自然资源部第二海洋研究所 | Remote sensing extraction method for shallow seabed material reflectivity |
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| CN102144154A (en) * | 2008-10-01 | 2011-08-03 | 东卡莱罗纳大学 | Methods and systems for optically characterizing a turbid material using a structured incident beam |
| CN103900996A (en) * | 2014-03-19 | 2014-07-02 | 中国科学院南海海洋研究所 | Measuring method and device for measuring coverage rate of white crown on sea in field |
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| CN102144154A (en) * | 2008-10-01 | 2011-08-03 | 东卡莱罗纳大学 | Methods and systems for optically characterizing a turbid material using a structured incident beam |
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