AU2021104960A4 - Method and System for Measuring Water Transparency - Google Patents
Method and System for Measuring Water Transparency Download PDFInfo
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- AU2021104960A4 AU2021104960A4 AU2021104960A AU2021104960A AU2021104960A4 AU 2021104960 A4 AU2021104960 A4 AU 2021104960A4 AU 2021104960 A AU2021104960 A AU 2021104960A AU 2021104960 A AU2021104960 A AU 2021104960A AU 2021104960 A4 AU2021104960 A4 AU 2021104960A4
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 178
- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000008034 disappearance Effects 0.000 claims abstract description 172
- 238000005259 measurement Methods 0.000 claims abstract description 149
- 230000003287 optical effect Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 239000000725 suspension Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000012634 optical imaging Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/59—Transmissivity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/18—Measuring arrangements characterised by the use of mechanical techniques for measuring depth
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Abstract
The embodiments of the present disclosure provide a method and system for measuring water
transparency. The method includes: identifying information of a sinking Secchi disk to acquire
Secchi disk identification data, recording real time at a moment before a just disappearance of the
sinking Secchi disk and real time at the just disappearance, determining a Secchi disk identification
result according to the Secchi disk identification data, performing time matching according to the
Secchi disk identification result and water depth information recorded by a depth measurement
component in real time, and taking water depth information corresponding to a time matching result
as a water transparency measurement result. A camera identification component, the depth
measurement component, the Secchi disk, and a clump weight are connected to a switch, the switch
is connected to an industrial control computer, and the Secchi disk identification data acquired by
the camera identification component and the water depth data acquired by the depth measurement
component are transmitted to the industrial control computer through the switch. The embodiments
of the present disclosure change the convention measurement that is made with the determination of
naked eyes and the reading on a graduation cord, and greatly improve the efficiency and accuracy
for measuring the transparency.
1/4
DRAWINGS
Identify information of a sinking Secchi disk to acquire Secchi disk identification data, Si
and record real time T1 at a moment before disappearance of the sinking Secchi disk and
real time T2 of the disappearance
Determine a Secchi disk identification result according to whether the identification data is present in the
real time T Iat the moment before the disappearance of the sinking Secchi disk and the real time T2 of the
disappearance, a time interval T2-Ti of the identification data, preset fixed time ti and whether the Secchi
disk can be identified within the preset fixed time tI
Determine, when the identification data is present in the real time T Iat the moment
before the disappearance of the sinking Secchi disk and the real time T2 of the
disappearance and T2-T1>0, and if the time interval T2-Ti of the identification data is
less than the preset fixed time ti, and the Secchi disk cannot be identified again within a S2a
fixed time interval t2 after the disappearance of the sinking Secchi disk, that the sinking
Secchi disk is identified successfully; and take the TI or the T2 as the Secchi disk
identification result, perform the time matching on the Secchi disk identification result
and the water depth information h recorded by the depth measurement component in real
time, and take water depth information h matching with the Secchi disk identification
result and recorded by the depth measurement component as the water transparency
measurement result
Determine, when the identification data is present in the real time T Iat the moment before
the disappearance of the sinking Secchi disk and the real time T2 of the disappearance and
T2-TI>O, and if the time interval T2-Ti of the identification data is less than the preset
fixed time ti, and the Secchi disk is identified again within a fixed time interval t2 after the
disappearance of the sinking Secchi disk, that the sinking Secchi disk is identified S2
unsuccessfully; continuously identify the sinking Secchi disk, and update a value for each
of the real time T Iat the moment before the disappearance of the sinking Secchi disk and S2b
the real time T2 of the disappearance, until meeting that the Secchi disk cannot be
identified again within the fixed time interval t2 after the disappearance of the sinking
Secchi disk, and determining that the sinking Secchi disk is identified successfully; and
take the updated real time TI or real time T2 as the Secchi disk identification result,
perform the time matching on the Secchi disk identification result and the water depth
information h recorded by the depth measurement component in real time, and take water
depth information h matching with the Secchi disk identification result and recorded by the
depth measurement component as the water transparency measurement result
Determine, when the identification data is present in the real time Ti at the moment
before the disappearance of the sinking Secchi disk and the real time T2 of the
disappearance, and if the time interval T2-T Iof the identification data is more than the
preset fixed time ti or T2-TI<O, that the sinking Secchi disk is identified unsuccessfully;
continuously identify the sinking Secchi disk, and update a value for each of the real time
T Iat the moment before the disappearance of the sinking Secchi disk and the real time S2c
T2 of the disappearance, until meeting that the Secchi disk cannot be identified again
within a fixed time interval t2 after the disappearance of the sinking Secchi disk, and
determining that the sinking Secchi disk is identified successfully; and take the updated
real time T Ior real time T2 as the Secchi disk identification result, perform the time
matching on the Secchi disk identification result and the water depth information h
recorded by the depth measurement component in real time, and take water depth
information h matching with the Secchi disk identification result and recorded by the
depth measurement component as the water transparency measurement result.
Record, in real time by using a depth measurement component, water depth information h
on where the sinking Secchi disk is located, perform time matching according to the S3
Secchi disk identification result and the water depth information h recorded by the depth
measurement component in real time, and take water depth information h matching with
the Secchi disk identification result and recorded by the depth measurement component
as a water transparency measurement result
FIG. 1
Description
1/4
Identify information of a sinking Secchi disk to acquire Secchi disk identification data, Si and record real time T1 at a moment before disappearance of the sinking Secchi disk and real time T2 of the disappearance
Determine a Secchi disk identification result according to whether the identification data is present in the real time TIat the moment before the disappearance of the sinking Secchi disk and the real time T2 of the disappearance, a time interval T2-Ti of the identification data, preset fixed time ti and whether the Secchi disk can be identified within the preset fixed time tI
Determine, when the identification data is present in the real time TIat the moment before the disappearance of the sinking Secchi disk and the real time T2 of the disappearance and T2-T1>0, and if the time interval T2-Ti of the identification data is less than the preset fixed time ti, and the Secchi disk cannot be identified again within a S2a fixed time interval t2 after the disappearance of the sinking Secchi disk, that the sinking Secchi disk is identified successfully; and take the TI or the T2 as the Secchi disk identification result, perform the time matching on the Secchi disk identification result and the water depth information h recorded by the depth measurement component in real time, and take water depth information h matching with the Secchi disk identification result and recorded by the depth measurement component as the water transparency measurement result
Determine, when the identification data is present in the real time TIat the moment before the disappearance of the sinking Secchi disk and the real time T2 of the disappearance and T2-TI>O, and if the time interval T2-Ti of the identification data is less than the preset fixed time ti, and the Secchi disk is identified again within a fixed time interval t2 after the disappearance of the sinking Secchi disk, that the sinking Secchi disk is identified S2 unsuccessfully; continuously identify the sinking Secchi disk, and update a value for each of the real time TIat the moment before the disappearance of the sinking Secchi disk and S2b the real time T2 of the disappearance, until meeting that the Secchi disk cannot be identified again within the fixed time interval t2 after the disappearance of the sinking Secchi disk, and determining that the sinking Secchi disk is identified successfully; and take the updated real time TI or real time T2 as the Secchi disk identification result, perform the time matching on the Secchi disk identification result and the water depth information h recorded by the depth measurement component in real time, and take water depth information h matching with the Secchi disk identification result and recorded by the depth measurement component as the water transparency measurement result
Determine, when the identification data is present in the real time Ti at the moment before the disappearance of the sinking Secchi disk and the real time T2 of the disappearance, and if the time interval T2-T Iof the identification data is more than the preset fixed time ti or T2-TI<O, that the sinking Secchi disk is identified unsuccessfully; continuously identify the sinking Secchi disk, and update a value for each of the real time TIat the moment before the disappearance of the sinking Secchi disk and the real time S2c T2 of the disappearance, until meeting that the Secchi disk cannot be identified again within a fixed time interval t2 after the disappearance of the sinking Secchi disk, and determining that the sinking Secchi disk is identified successfully; and take the updated real time TIor real time T2 as the Secchi disk identification result, perform the time matching on the Secchi disk identification result and the water depth information h recorded by the depth measurement component in real time, and take water depth information h matching with the Secchi disk identification result and recorded by the depth measurement component as the water transparency measurement result.
Record, in real time by using a depth measurement component, water depth information h on where the sinking Secchi disk is located, perform time matching according to the S3 Secchi disk identification result and the water depth information h recorded by the depth measurement component in real time, and take water depth information h matching with the Secchi disk identification result and recorded by the depth measurement component as a water transparency measurement result
FIG. 1
[01] The present disclosure relates to a method and system for measuring water transparency, and belongs to the technical field of water transparency measurement.
[02] Water transparency refers to an extent of light penetration in water and mainly depends on the altitude of the sun, suspended matters, plankton, etc. It is important and valuable for water environmental changes, water optical parameters, aquatic ecological environments, aquacultures, and the like. Particularly, with the constant development of underwater optical imaging technologies, the water transparency parameter becomes ever-increasingly important.
[03] Presently, the water transparency is mainly measured with a Secchi disk. The Secchi disk, as a white circular disk of 30cm diameter, is sunken into the water until it disappears just from the view. The depth at which the disk disappears is the transparency. The method mainly makes a measurement with the observation of naked eyes and the reading on a graduation cord. Although simple and easy, the method is strongly subjective to cause the inconsistent measurement standards and large errors, or event poses a risk to the personal safety in a special environment, thereby greatly affecting the measurement efficiency and the observation accuracy. Hence, providing a method and system for measuring the water transparency to overcome the influences from factors such as the artificial operation and water environment and improve the measurement accuracy and measurement efficiency is a problem to be urgently solved in the art.
[04] In view of the shortages of the prior art, the present disclosure provides a method and system for measuring water transparency. The present disclosure changes the conventional measurement method that reads a graduation cord, overcomes the measurement error caused by factors such as the artificial operation and water environment, and improves the accuracy for measuring the transparency.
[05] The technical solutions used by the present disclosure to solve the above technical problems are as follows: Afirst aspect provides a method for measuring water transparency, including the following steps:
[06] identifying information of a sinking Secchi disk to acquire Secchi disk identification data, and recording real time Ti at a moment before disappearance of the sinking Secchi disk and real time T2 of the disappearance;
[07] determining a Secchi disk identification result according to whether the identification data is present in the real time Ti at the moment before the disappearance of the sinking Secchi disk and ) the real time T 2 of the disappearance, a time interval T 2-Ti of the identification data, preset fixed time ti and whether the Secchi disk can be identified within the preset fixed time ti; and
[08] recording, in real time by using a depth measurement component, water depth information h on where the sinking Secchi disk is located, performing time matching according to the Secchi disk identification result and the water depth information h recorded by the depth measurement component in real time, and taking water depth information h matching with the Secchi disk identification result and recorded by the depth measurement component as a water transparency measurement result.
[09] As a preferred solution of the method for measuring water transparency, the method may include: determining, when the identification data is present in the real time Ti at the moment before the disappearance of the sinking Secchi disk and the real time T 2 of the disappearance and T 2 -Ti>O, and if the time interval T 2 -Ti of the identification data is less than the preset fixed time ti,
and the Secchi disk cannot be identified again within a fixed time interval t2 after the disappearance of the sinking Secchi disk, that the sinking Secchi disk is identified successfully; and
[10] taking the T1 or the T 2 as the Secchi disk identification result, performing the time matching on the Secchi disk identification result and the water depth information h recorded by the depth measurement component in real time, and taking water depth information h matching with the Secchi disk identification result and recorded by the depth measurement component as the water transparency measurement result.
[11] As a preferred solution of the method for measuring water transparency, the method may include: determining, when the identification data is present in the real time Ti at the moment before the disappearance of the sinking Secchi disk and the real time T 2 of the disappearance and T 2 -Ti>, and if the time interval T 2 -Ti of the identification data is less than the preset fixed time ti, and the Secchi disk is identified again within a fixed time interval t2 after the disappearance of the sinking Secchi disk, that the sinking Secchi disk is identified unsuccessfully;
[12] continuously identifying the sinking Secchi disk, and updating a value for each of the real time Ti at the moment before the disappearance of the sinking Secchi disk and the real time T 2 of the disappearance, until meeting that the Secchi disk cannot be identified again within the fixed time interval t2 after the disappearance of the sinking Secchi disk, and determining that the sinking Secchi disk is identified successfully; and
[13] taking the updated real time Ti or real time T 2 as the Secchi disk identification result, performing the time matching on the Secchi disk identification result and the water depth information h recorded by the depth measurement component in real time, and taking water depth information h matching with the Secchi disk identification result and recorded by the depth measurement component as the water transparency measurement result.
[14] As a preferred solution of the method for measuring water transparency, the method may include: determining, when the identification data is present in the real time Ti at the moment before the disappearance of the sinking Secchi disk and the real time T 2 of the disappearance, and if the time interval T 2 -T 1 of the identification data is more than the preset fixed time ti or T2-T1<O, that the sinking Secchi disk is identified unsuccessfully;
[15] continuously identifying the sinking Secchi disk, and updating a value for each of the real time Ti at the moment before the disappearance of the sinking Secchi disk and the real time T 2 of the disappearance, until meeting that the Secchi disk cannot be identified again within a fixed time interval t2 after the disappearance of the sinking Secchi disk, and determining that the sinking Secchi disk is identified successfully; and
[16] taking the updated real time Ti or real time T 2 as the Secchi disk identification result, performing the time matching on the Secchi disk identification result and the water depth information h recorded by the depth measurement component in real time, and taking water depth information h matching with the Secchi disk identification result and recorded by the depth measurement component as the water transparency measurement result.
[17] A second aspect provides a system for measuring water transparency, including:
[18] a Secchi disk identification module, configured to identify information of a sinking Secchi disk to acquire Secchi disk identification data;
[19] a time recording module, configured to record real time Ti at a moment before disappearance of the sinking Secchi disk and real time T 2 of the disappearance;
[20] an identification result determination module, configured to determine a Secchi disk identification result according to whether the identification data is present in the real time Ti at the moment before the disappearance of the sinking Secchi disk and the real time T 2 of the disappearance, a time interval T 2-Ti of the identification data, preset fixed time ti and whether the Secchi disk can be identified within the preset fixed time ti;
[21] a depth measurement module, configured to record, in real time by using a depth measurement component, water depth information h on where the sinking Secchi disk is located; and
[22] a result matching module, configured to perform time matching according to the Secchi disk identification result and the water depth information h recorded by the depth measurement component in real time, and take water depth information h matching with the Secchi disk identification result and recorded by the depth measurement component as a water transparency measurement result.
[23] As a preferred solution of the system for measuring water transparency, the identification result determination module may determine, when the identification data is present in the real time STi at the moment before the disappearance of the sinking Secchi disk and the real time T 2 of the disappearance and T 2-Ti>O, and if the time interval T 2-Ti of the identification data is less than the preset fixed time ti, and the Secchi disk cannot be identified again within a fixed time interval t2
after the disappearance of the sinking Secchi disk, that the sinking Secchi disk is identified successfully; and
[24] the result matching module takes the T1 or the T 2 as the Secchi disk identification result, performs the time matching on the Secchi disk identification result and the water depth information h recorded by the depth measurement component in real time, and takes water depth information h matching with the Secchi disk identification result and recorded by the depth measurement component as the water transparency measurement result.
[25] As a preferred solution of the system for measuring water transparency, the identification result determination module may determine, when the identification data is present in the real time Ti at the moment before the disappearance of the sinking Secchi disk and the real time T 2 of the disappearance and T 2-Ti>O, and if the time interval T 2-Ti of the identification data is less than the preset fixed time ti, and the Secchi disk is identified again within a fixed time interval t2 after the disappearance of the sinking Secchi disk, that the sinking Secchi disk is identified unsuccessfully, and the identification result determination module continuously identifies the sinking Secchi disk;
[26] the system may further include an update module, configured to update a value for each of the real time Ti at the moment before the disappearance of the sinking Secchi disk and the real time T 2 of the disappearance, until meeting that the Secchi disk cannot be identified again within the fixed time interval t2 after the disappearance of the sinking Secchi disk, and determining that the sinking Secchi disk is identified successfully; and
[27] the result matching module may take the updated real time Ti or real time T 2 as the Secchi disk identification result, perform the time matching on the Secchi disk identification result and the water depth information h recorded by the depth measurement component in real time, and take water depth information h matching with the Secchi disk identification result and recorded by the depth measurement component as the water transparency measurement result.
[28] As a preferred solution of the system for measuring water transparency, the identification result determination module may determine, when the identification data is present in the real time Ti at the moment before the disappearance of the sinking Secchi disk and the real time T 2 of the disappearance, and if the time interval T 2-Ti of the identification data is more than the preset fixed time ti or T 2 -Ti<O, that the sinking Secchi disk is identified unsuccessfully, and the identification result determination module continuously identifies the sinking Secchi disk;
[29] the system may further include an update module, configured to update a value for each of the real time Ti at the moment before the disappearance of the sinking Secchi disk and the real time T 2 of the disappearance, until meeting that the Secchi disk cannot be identified again within a fixed time interval t 2 after the disappearance of the sinking Secchi disk, and determining that the sinking Secchi disk is identified successfully; and
[30] the result matching module may take the updated real time Ti or real time T 2 as the Secchi disk identification result, perform the time matching on the Secchi disk identification result and the water depth information h recorded by the depth measurement component in real time, and take water depth information h matching with the Secchi disk identification result and recorded by the depth measurement component as the water transparency measurement result.
[31] A third aspect provides a computer readable storage medium, where the computer readable storage medium stores a program code for measuring water transparency, and the program code includes an instruction for executing the method for measuring water transparency in the first aspect or any possible implementation.
[32] A fourth aspect provides an electronic device, where the electronic device includes a processor, the processor is coupled to a storage medium, and when the processor executes an instruction in the storage medium, the electronic device executes an instruction of implementing the method for measuring water transparency in the first aspect or any possible implementation.
[33] The present disclosure has the following beneficial effects: The present disclosure identifies information of a sinking Secchi disk to acquire Secchi disk identification data, records real time at a moment before a just disappearance of the sinking Secchi disk and real time at the just disappearance of the sinking Secchi disk, determines a Secchi disk identification result according to whether the identification data is present at the moment before the just disappearance of the sinking Secchi disk and at the just disappearance of the sinking Secchi disk, a time interval of the Secchi disk identification data, given fixed time and whether the Secchi disk can be identified again within a fixed time interval, performs time matching according to the Secchi disk identification result and water depth information recorded by a depth measurement component in real time, and takes water depth information corresponding to the Secchi disk identification result and recorded by the depth measurement component as a water transparency measurement result. With the use of characteristics before and after the disappearance when the Secchi disk sinks in the water, the present disclosure changes the conventional measurement that is made with the determination of eyes and the reading over a graduation cord, overcomes the measurement error caused by factors such as the artificial operation and water environment, and improves the accuracy for measuring the transparency.
[34] In order to more clearly illustrate the implementations of the present disclosure or the technical solutions in the prior art, a brief introduction to the accompanying drawings required for the description of the implementations or the prior art will be provided below. Obviously, the drawings in the following description are only exemplary. For those of ordinary skill in the art, other implementation drawings can be derived from the provided drawings without creative work.
[35] FIG. 1 is a schematic view of a method for measuring water transparency provided by an embodiment of the present disclosure.
[36] FIG. 2 is a schematic view of a system for measuring water transparency provided by an embodiment of the present disclosure.
[37] FIG. 3 is a schematic view of a hardware layout of a system for measuring water transparency provided by an embodiment of the present disclosure.
[38] FIG. 4 is a schematic block diagram of a computer for implementing a method and a system according to an embodiment of the present disclosure.
[39] To make the foregoing objectives, features, and advantages of the present disclosure clearer and more comprehensible, the specific implementations of the present disclosure are described in detail below with reference to the drawings. The following describes many details in order to provide a thorough understanding of the present disclosure. However, the present disclosure can be implemented in many other ways other than those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present disclosure, and thus the present disclosure is not limited to the specific embodiments disclosed below.
[40] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present disclosure. The terms used in the specification of the present disclosure herein are only for the purpose of describing specific embodiments, and are not intended to limit the present disclosure. As used herein, the term "and/or" includes any and all combinations of one or more related items listed.
[41] In the process of understanding the specific technical solutions in the embodiments of the present disclosure, the technical features have the following meanings:
[42] Moment before the just disappearance of the Secchi disk: When the Secchi disk sinks in water, the data of the Secchi disk cannot be acquired at a next time acquisition point, and thus the time acquisition point before the next time acquisition point refers to the moment before the just disappearance of the Secchi disk. There is an error of the just disappearance that is located in one time interval.
[43] Just disappearance of the Secchi disk: When the Secchi disk sinks in the water, the data of the Secchi disk is acquired at some time acquisition point but cannot be acquired at a next time ) acquisition point of that time acquisition point, and thus the next time acquisition point of that time acquisition point refers to the just disappearance of the Secchi disk. There is an error of the just disappearance that is located in one time interval.
[44] Time acquisition points: preset time for acquiring the data of the Secchi disk at a certain time interval; and there is an arithmetic progression between the time acquisition points.
[45] Embodiment 1
[46] Referring to FIG. 1, the method for measuring water transparency provided by Embodiment 1 of the present disclosure includes the following steps:
[47] SI: Identify information of a sinking Secchi disk to acquire Secchi disk identification data, and record real time Ti at a moment before disappearance of the sinking Secchi disk and real time T 2 of the disappearance.
[48] S2: Determine a Secchi disk identification result according to whether the identification data is present in the real time Ti at the moment before the disappearance of the sinking Secchi disk and the real time T 2 of the disappearance, a time interval T 2 -Ti of the identification data, preset fixed time ti and whether the Secchi disk can be identified within the preset fixed time ti.
[49] S3: Record, in real time by using a depth measurement component, water depth information h on where the sinking Secchi disk is located, perform time matching according to the Secchi disk identification result and the water depth information h recorded by the depth measurement component in real time, and take water depth information h matching with the Secchi disk identification result and recorded by the depth measurement component as a water transparency measurement result.
[50] Specifically, Step S2 includes the following cases:
[51] S2a: Determine, when the identification data is present in the real time Ti at the moment before the disappearance of the sinking Secchi disk and the real time T 2 of the disappearance and T 2 -Ti>O, and if the time interval T 2 -Ti of the identification data is less than the preset fixed time ti, and the Secchi disk cannot be identified again within a fixed time interval t2 after the disappearance of the sinking Secchi disk, that the sinking Secchi disk is identified successfully; and take the T i or the T 2 as the Secchi disk identification result, perform the time matching on the Secchi disk identification result and the water depth information h recorded by the depth measurement component in real time, and take water depth information h matching with the Secchi disk identification result and recorded by the depth measurement component as the water transparency measurement result.
[52] S2b: Determine, when the identification data is present in the real time T iat the moment before the disappearance of the sinking Secchi disk and the real time T 2 of the disappearance and T 2 -T 1>, and if the time interval T 2 -Tiof the identification data is less than the preset fixed time ti, ) and the Secchi disk is identified again within a fixed time interval t2 after the disappearance of the sinking Secchi disk, that the sinking Secchi disk is identified unsuccessfully; continuously identify the sinking Secchi disk, and update a value for each of the real time Ti at the moment before the disappearance of the sinking Secchi disk and the real time T 2 of the disappearance, until meeting that the Secchi disk cannot be identified again within the fixed time interval t 2 after the disappearance of the sinking Secchi disk, and determining that the sinking Secchi disk is identified successfully; and take the updated real time Ti or real time T 2 as the Secchi disk identification result, perform the time matching on the Secchi disk identification result and the water depth information h recorded by the depth measurement component in real time, and take water depth information h matching with the Secchi disk identification result and recorded by the depth measurement component as the water transparency measurement result.
[53] S2c: Determine, when the identification data is present in the real time Ti at the moment before the disappearance of the sinking Secchi disk and the real time T 2 of the disappearance, and if the time interval T 2 -Ti of the identification data is more than the preset fixed time ti or T 2-T1<O, that the sinking Secchi disk is identified unsuccessfully; continuously identify the sinking Secchi disk, and update a value for each of the real time Ti at the moment before the disappearance of the sinking Secchi disk and the real time T 2 of the disappearance, until meeting that the Secchi disk cannot be identified again within a fixed time interval t2 after the disappearance of the sinking Secchi disk, and determining that the sinking Secchi disk is identified successfully; and take the updated real time Ti or real time T 2 as the Secchi disk identification result, perform the time matching on the Secchi disk identification result and the water depth information h recorded by the depth measurement component in real time, and take water depth information h matching with the Secchi disk identification result and recorded by the depth measurement component as the water transparency measurement result.
[54] Embodiment 2
[55] Referring to FIG. 2, the system for measuring water transparency is provided, including:
[56] a Secchi disk identification module 1, configured to identify information of a sinking Secchi disk to acquire Secchi disk identification data;
[57] a time recording module 2, configured to record real time Ti at a moment before disappearance of the sinking Secchi disk and real time T 2 of the disappearance;
[58] an identification result determination module 3, configured to determine a Secchi disk identification result according to whether the identification data is present in the real time Ti at the moment before the disappearance of the sinking Secchi disk and the real time T 2 of the disappearance, a time interval T 2-Ti of the identification data, preset fixed time ti and whether the Secchi disk can be identified within the preset fixed time ti;
[59] a depth measurement module 4, configured to record, in real time by using a depth measurement component, water depth information h on where the sinking Secchi disk is located; and
[60] a result matching module 5, configured to perform time matching according to the Secchi disk identification result and the water depth information h recorded by the depth measurement component in real time, and take water depth information h matching with the Secchi disk identification result and recorded by the depth measurement component as a water transparency measurement result.
[61] In an embodiment of the system for measuring water transparency, the identification result determination module 3 determines, when the identification data is present in the real time Ti at the moment before the disappearance of the sinking Secchi disk and the real time T 2 of the disappearance and T 2-Ti>O, and if the time interval T 2-Ti of the identification data is less than the preset fixed time ti, and the Secchi disk cannot be identified again within a fixed time interval t2
after the disappearance of the sinking Secchi disk, that the sinking Secchi disk is identified successfully; and the result matching module 5 takes the Ti or the T 2 as the Secchi disk identification result, performs the time matching on the Secchi disk identification result and the water depth information h recorded by the depth measurement component in real time, and takes water depth information h matching with the Secchi disk identification result and recorded by the depth measurement component as the water transparency measurement result.
[62] In an embodiment of the system for measuring water transparency, the identification result determination module 3 determines, when the identification data is present in the real time Ti at the moment before the disappearance of the sinking Secchi disk and the real time T 2 of the disappearance and T 2-Ti>, and if the time interval T 2-Ti of the identification data is less than the preset fixed time ti, and the Secchi disk is identified again within a fixed time interval t2 after the disappearance of the sinking Secchi disk, that the sinking Secchi disk is identified unsuccessfully, and the identification result determination module 3 continuously identifies the sinking Secchi disk.
[63] Specifically, the system further includes an update module 6, configured to update a value for each of the real time Ti at the moment before the disappearance of the sinking Secchi disk and the real time T 2 of the disappearance, until meeting that the Secchi disk cannot be identified again within the fixed time interval t2 after the disappearance of the sinking Secchi disk, and determining that the sinking Secchi disk is identified successfully. The result matching module 5 takes the updated real time Ti or real time T 2 as the Secchi disk identification result, performs the time matching on the Secchi disk identification result and the water depth information h recorded by the depth measurement component in real time, and takes water depth information h matching with the Secchi disk identification result and recorded by the depth measurement component as the water ) transparency measurement result.
[64] In an embodiment of the system for measuring water transparency, the identification result determination module 3 determines, when the identification data is present in the real time T 1 at the moment before the disappearance of the sinking Secchi disk and the real time T 2 of the disappearance, and if the time interval T 2-Ti of the identification data is more than the presetfixed time ti or T 2-Ti<O, that the sinking Secchi disk is identified unsuccessfully, and the identification result determination module 3 continuously identifies the sinking Secchi disk.
[65] Specifically, the system further includes an update module 6, configured to update a value for each of the real time Ti at the moment before the disappearance of the sinking Secchi disk and the real time T 2 of the disappearance, until meeting that the Secchi disk cannot be identified again within a fixed time interval t2 after the disappearance of the sinking Secchi disk, and determining that the sinking Secchi disk is identified successfully. The result matching module 5 takes the updated real time Ti or real time T 2 as the Secchi disk identification result, performs the time matching on the Secchi disk identification result and the water depth information h recorded by the depth measurement component in real time, and takes water depth information h matching with the Secchi disk identification result and recorded by the depth measurement component as the water transparency measurement result.
[66] In an embodiment of the system for measuring water transparency, the Secchi disk identification module 1 includes a camera identification component. The camera identification component is disposed on a support platform. When the Secchi disk sinks into the water, the camera identification component identifies information of the Secchi disk sinking into the water to acquire identification data of the sinking Secchi disk, records real time Ti at a moment before a just disappearance of the sinking Secchi disk and real time T 2 at the just disappearance of the Secchi disk, determines, when a time interval between the Ti and the T 2 is less than given time ti and T 2 -Ti>O, and the Secchi disk cannot be identified again within a fixed time interval t2 after the just disappearance of the sinking Secchi disk, that the sinking Secchi disk is identified successfully, and takes the Ti and the T 2 as a Secchi disk identification result; and then, performs time matching on the Secchi disk identification result and water depth information recorded by a depth measurement component in real time, and takes water depth information corresponding to the Secchi disk identification result and recorded by the depth measurement component as the water transparency measurement result.
[67] Referring to FIG. 3, based on the technical solutions in the embodiment of the present disclosure, related hardware structures, including the support platform, camera identification component, clump weight, depth measurement component, Secchi disk, fixed pulley, switch and industrial control computer, are deployed. The support platform includes a base, a support rotating ) shaft and a suspension plate. The base and the suspension plate are respectively fixed on two ends of the support rotating shaft, the support rotating shaft is configured to support and rotate the suspension plate, and the fixed pulley is respectively disposed on two ends of the suspension plate; the camera identification component is connected to the switch; the depth measurement component, the Secchi disk and the clump weight are connected to the switch; the switch is connected to the industrial control computer; and Secchi disk identification data acquired by the camera identification component and water depth data acquired by the depth measurement component are transmitted to the industrial control computer through the switch.
[68] Specifically, the camera identification component is configured to identify information of the Secchi disk sinking into water to acquire identification data of the sinking Secchi disk, and record real time T 1 at a moment before a just disappearance of the sinking Secchi disk and real time T 2 at the just disappearance of the sinking Secchi disk. The depth measurement component is configured to record a real-time depth of the Secchi disk. The industrial control computer includes a Secchi disk identification module 1, a time recording module 2, an identification result determination module 3, a depth measurement module 4 and a result matching module 5. The Secchi disk identification module 1 identifies the information of the sinking Secchi disk to acquire the Secchi disk identification data; the time recording module 2 records real time Ti at a moment before disappearance of the sinking Secchi disk and real time T 2 of the disappearance; the identification result determination module 3 determines a Secchi disk identification result according to whether the identification data is present in the real time Ti at the moment before the disappearance of the sinking Secchi disk and the real time T 2 of the disappearance, a time interval T 2 -Ti of the identification data, preset fixed time ti and whether the Secchi disk can be identified within the preset fixed time ti; the depth measurement module 4 records, in real time by using the depth measurement component, water depth information h on where the sinking Secchi disk is located; and the result matching module 5 performs time matching according to the Secchi disk identification result and the water depth information h recorded by the depth measurement component in real time, and takes water depth information h matching with the Secchi disk identification result and recorded by the depth measurement component as a water transparency measurement result.
[69] Specifically, the switch is connected to the camera identification component via a wired network or a wireless transmission module; the industrial control computer may also be connected to the switch via the wired network or the wireless transmission module; the switch is connected to the depth measurement component, the Secchi disk and the clump weight via an armored cable through the fixed pulley; the wired network uses one of a serial port, an Ethernet port or an optical fiber; and the wireless transmission module uses one of a Bluetooth, a 3rd Generation (3G), a 4th ) Generation (4G) or a Wireless Fidelity (WiFi). Specifically, with the use of the deployed camera identification component and depth measurement component for the Secchi disk, and according to characteristics before and after the disappearance when the Secchi disk sinks in the water, the present disclosure changes the original determination of the eyes into the camera identification and the original reading on the graduation cord into the measurement of the depth measurement component, overcomes the measurement error caused by factors such as the artificial operation and water environment, and improves the accuracy for measuring the transparency. The present disclosure determines the Secchi disk identification data with the industrial control computer or other manners (for example, the camera identification component), and shares the data of the camera identification system of the Secchi disk with the switch or other networking manners (such as the Bluetooth, the 3G\4G and the WiFi).
[70] The present disclosure identifies information of a sinking Secchi disk to acquire Secchi disk identification data, records real time at a moment before a just disappearance of the sinking Secchi disk and real time at the just disappearance of the sinking Secchi disk, determines a Secchi disk identification result according to whether the identification data is present at the moment before the just disappearance of the sinking Secchi disk and at the just disappearance of the sinking Secchi disk, a time interval of the Secchi disk identification data, given fixed time and whether the Secchi disk can be identified again within a fixed time interval, performs time matching according to the Secchi disk identification result and water depth information recorded by a depth measurement component in real time, and takes water depth information corresponding to the Secchi disk identification result and recorded by the depth measurement component as a water transparency measurement result. Based on the camera identification component and depth measurement component for the Secchi disk, and with the use of characteristics before and after the disappearance when the Secchi disk sinks in the water, the present disclosure changes the original determination of the eyes into the camera identification and the original reading on the graduation cord into the measurement of the depth measurement component, overcomes the measurement error caused by factors such as the artificial operation and water environment, and improves the accuracy for measuring the transparency.
[71] Embodiment 3
[72] A third aspect provides a computer readable storage medium, where the computer readable storage medium stores a program code for measuring water transparency, and the program code includes an instruction for executing the method for measuring water transparency in Embodiment 1 or any possible implementation.
[73] The computer-readable storage medium may be any usable medium accessible by a computer, or a data storage device, such as a server or a data center, integrating one or more usable media. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, or a magnetic tape), an optical medium (for example, a Digital Video Disc (DVD), a semiconductor medium (for example, a Solid State Disk (SSD)), or the like.
[74] Embodiment 4
[75] A fourth aspect provides an electronic device, where the electronic device includes a processor, the processor is coupled to a storage medium, and when the processor executes an instruction in the storage medium, the electronic device executes an instruction of implementing the method for measuring water transparency in Embodiment 1 or any possible implementation.
[76] Specifically, the processor may be implemented by hardware and may also be implemented by software; when implemented by the hardware, the processor may be a logic circuit, an integrated circuit, etc.; and when implemented by the software, the processor may be a universal processor and is implemented by reading a software code in a memory; and the memory may be integrated to the processor, and may be independent of the processor and exist alone.
[77] The above embodiments may be implemented completely or partially by using software, hardware, firmware, or any combination thereof. When the software is used, the embodiments may be implemented completely or partially in a form of a computer 700 program product. The computer 700 program product includes one or more computer 700 instructions. When the computer 700 program instructions are loaded and executed on a computer 700, the procedures or functions according to the embodiments of the present disclosure are all or partially generated. The computer 700 may be a general-purpose computer, a dedicated computer, a computer network, or another programmable apparatus. The computer 700 instructions may be stored in a computer 700 readable storage medium or may be transmitted from a computer 700 readable storage medium to another computer 700 readable storage medium. For example, the computer 700 instructions may be transmitted from a website, computer 700, server, or data center to another website, computer 700, server, or data center in a wired (for example, a coaxial cable, an optical fiber, or a Digital Subscriber Line (DSL)) or wireless (for example, infrared, radio, and microwave) manner.
[78] Specifically, referring to FIG. 3, the schematic block diagram of a computer for implementing a method and a system according to an embodiment of the present disclosure is illustrated. In FIG. 3, the central processing unit (CPU) 701 executes various processings according to a program stored in a read only memory (ROM) 702 or a program loaded from a storage part 708 to a random access memory (RAM) 703. The RAM 703 further stores, as required, data of various processings executed by the CPU 701. The CPU 701, ROM 702 and RAM 703 are connected to one another via a bus 704. An input/output (I/O) interface 705 is also connected to the bus 704.
[79] The following components are connected to the I/O interface 705: an input part 706 including a keyboard, a mouse, and the like; an output part 707 including a display such as a cathode-ray tube (CRT), a liquid crystal display (LCD) and a loudspeaker; a storage part 708 including a hard disk; and a communication part 709 including a network interface card such as a local area network (LAN) card and a modem. The communication part 709 executes communication processing via a network such as the Internet. A driver 710 is also connected to the I/O interface 705 as required. A removable medium 711, such as a magnetic disk, an optical disc, a magneto optical disc, a semiconductor memory, or the like, is mounted on the driver 710 as required, so that a computer program read therefrom can be installed in the storage part 708 as required.
[80] In a case where the above series of processings are implemented by the software, programs constituted into the software are installed from the network such as the Internet or the storage medium such as the removable medium 711.
[81] It should be understood by those skilled in the art that the storage medium is not limited to the removable medium 711 shown in FIG. 3 that is stored with the program and separated from the device to provide the program for the user. Examples of the removable medium 711 include a magnetic disk (including a floppy disk (registered trademark)), an optical disc (including a compact disc ROM (CD-ROM) and a DVD), a magneto-optical disk (including a minidisc (MD) (registered trademark)) and a semiconductor memory. Or, the storage medium may be the ROM 702, the hard disk included in the storage part 708, and the like, in which the program is stored and distributed to the user together with the device including the same.
[82] Obviously, those skilled in the art should know that the modules or steps of the disclosure may be implemented by a universal computing device, and these modules or steps may be concentrated on a single computing device or distributed on a network consisting of a plurality of computing devices, and may optionally be implemented by programmable codes executable by the computing devices, so that these components or steps may be stored in a storage device for execution with the computing devices, and may be implemented, in some circumstances, by executing the shown or described steps in sequences different from those described here, or making the steps into integrated circuit modules respectively, or making multiple modules or steps therein into a single integrated circuit module. As a consequence, the disclosure is not limited to any specific hardware and software combination.
[83] The technical features of the above embodiments may be arbitrarily combined. For brevity of description, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, all these combinations should be considered as the scope of this specification.
[84] The above embodiments are merely illustrative of several implementations of the present disclosure, and the description thereof is more specific and detailed. However, these embodiments may not to be construed as a limitation to the patentable scope of the present disclosure. It should be noted that those of ordinary skill in the art can further make several variations and improvements without departing from the conception of the present disclosure. These variations and improvements all fall within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope defined by the claims.
Claims (5)
1. A method for measuring water transparency, comprising the following steps: identifying information of a sinking Secchi disk to acquire Secchi disk identification data, and recording real time Ti at a moment before disappearance of the sinking Secchi disk and real time T 2 of the disappearance; determining a Secchi disk identification result according to whether the identification data is present in the real time Ti at the moment before the disappearance of the sinking Secchi disk and the real time T 2 of the disappearance, a time interval T 2-Ti of the identification data, preset fixed time ti and whether the Secchi disk is identified within the preset fixed time ti; and recording, in real time by using a depth measurement component, water depth information h on where the sinking Secchi disk is located, performing time matching according to the Secchi disk identification result and the water depth information h recorded by the depth measurement component in real time, and taking water depth information h matching with the Secchi disk identification result and recorded by the depth measurement component as a water transparency measurement result.
2. The method for measuring water transparency according to claim 1, further comprising: determining, when the identification data is present in the real time Ti at the moment before the disappearance of the sinking Secchi disk and the real time T 2 of the disappearance and T 2 -Ti>O, and if the time interval T 2-Ti of the identification data is less than the preset fixed time ti, and the Secchi disk is not identified again within a fixed time interval t2 after the disappearance of the sinking Secchi disk, that the sinking Secchi disk is identified successfully; and taking the Ti or the T 2 as the Secchi disk identification result, performing the time matching on the Secchi disk identification result and the water depth information h recorded by the depth measurement component in real time, and taking water depth information h matching with the Secchi disk identification result and recorded by the depth measurement component as the water transparency measurement result; or, further comprising: determining, when the identification data is present in the real time Ti at the moment before the disappearance of the sinking Secchi disk and the real time T 2 of the disappearance and T 2-Ti>, and if the time interval T 2-Ti of the identification data is less than the preset fixed time ti, and the Secchi disk is identified again within a fixed time interval t2 after the disappearance of the sinking Secchi disk, that the sinking Secchi disk is identified unsuccessfully; and continuously identifying the sinking Secchi disk, and updating a value for each of the real time
Ti at the moment before the disappearance of the sinking Secchi disk and the real time T 2 of the disappearance, until meeting that the Secchi disk is not identified again within the fixed time interval t2 after the disappearance of the sinking Secchi disk, and determining that the sinking Secchi disk is identified successfully; and taking the updated real time Ti or real time T 2 as the Secchi disk identification result, performing the time matching on the Secchi disk identification result and the water depth information h recorded by the depth measurement component in real time, and taking water depth information h matching with the Secchi disk identification result and recorded by the depth measurement component as the water transparency measurement result; or, further comprising: determining, when the identification data is present in the real time T1 at the moment before the disappearance of the sinking Secchi disk and the real time T 2 of the disappearance, and if the time interval T 2-Ti of the identification data is more than the preset fixed time ti or T 2-Ti<O, that the sinking Secchi disk is identified unsuccessfully; continuously identifying the sinking Secchi disk, and updating a value for each of the real time Ti at the moment before the disappearance of the sinking Secchi disk and the real time T 2 of the disappearance, until meeting that the Secchi disk is not identified again within a fixed time interval t2 after the disappearance of the sinking Secchi disk, and determining that the sinking Secchi disk is identified successfully; and taking the updated real time Ti or real time T 2 as the Secchi disk identification result, performing the time matching on the Secchi disk identification result and the water depth information h recorded by the depth measurement component in real time, and taking water depth information h matching with the Secchi disk identification result and recorded by the depth measurement component as the water transparency measurement result.
3. A system for measuring water transparency, comprising: a Secchi disk identification module, configured to identify information of a sinking Secchi disk to acquire Secchi disk identification data; a time recording module, configured to record real time Ti at a moment before disappearance of the sinking Secchi disk and real time T 2 of the disappearance; an identification result determination module, configured to determine a Secchi disk identification result according to whether the identification data is present in the real time Ti at the moment before the disappearance of the sinking Secchi disk and the real time T 2 of the disappearance, a time interval T 2-Ti of the identification data, preset fixed time ti and whether the Secchi disk is identified within the preset fixed time ti; a depth measurement module, configured to record, in real time by using a depth measurement component, water depth information h on where the sinking Secchi disk is located; and a result matching module, configured to perform time matching according to the Secchi disk ) identification result and the water depth information h recorded by the depth measurement component in real time, and take water depth information h matching with the Secchi disk identification result and recorded by the depth measurement component as a water transparency measurement result; wherein the identification result determination module determines, when the identification data is present in the real time Ti at the moment before the disappearance of the sinking Secchi disk and the real time T 2 of the disappearance and T 2-T1 >O, and if the time interval T 2-T1 of the identification data is less than the preset fixed time ti, and the Secchi disk is not identified again within a fixed time interval t2 after the disappearance of the sinking Secchi disk, that the sinking Secchi disk is identified successfully; and the result matching module takes the T1 or the T 2 as the Secchi disk identification result, performs the time matching on the Secchi disk identification result and the water depth information h recorded by the depth measurement component in real time, and takes water depth information h matching with the Secchi disk identification result and recorded by the depth measurement component as the water transparency measurement result; or, wherein the identification result determination module determines, when the identification data is present in the real time Ti at the moment before the disappearance of the sinking Secchi disk and the real time T 2 of the disappearance and T 2-Ti>, and if the time interval T 2-Ti of the identification data is less than the preset fixed time ti, and the Secchi disk is identified again within a fixed time interval t2 after the disappearance of the sinking Secchi disk, that the sinking Secchi disk is identified unsuccessfully, and the identification result determination module continuously identifies the sinking Secchi disk; the system further comprises an update module, configured to update a value for each of the real time Ti at the moment before the disappearance of the sinking Secchi disk and the real time T 2 of the disappearance, until meeting that the Secchi disk is not identified again within the fixed time interval t2 after the disappearance of the sinking Secchi disk, and determining that the sinking Secchi disk is identified successfully; and the result matching module takes the updated real time Ti or real time T 2 as the Secchi disk identification result, performs the time matching on the Secchi disk identification result and the water depth information h recorded by the depth measurement component in real time, and takes water depth information h matching with the Secchi disk identification result and recorded by the depth measurement component as the water transparency measurement result; or, wherein the identification result determination module determines, when the identification data is present in the real time Ti at the moment before the disappearance of the sinking Secchi disk and the real time T 2 of the disappearance, and if the time interval T 2-Ti of the identification data is ) more than the preset fixed time ti or T2-Ti<, that the sinking Secchi disk is identified unsuccessfully, and the identification result determination module continuously identifies the sinking Secchi disk; the system further comprises an update module, configured to update a value for each of the real time Ti at the moment before the disappearance of the sinking Secchi disk and the real time T 2 of the disappearance, until meeting that the Secchi disk is not identified again within a fixed time interval t2 after the disappearance of the sinking Secchi disk, and determining that the sinking Secchi disk is identified successfully; and the result matching module takes the updated real time Ti or real time T 2 as the Secchi disk identification result, performs the time matching on the Secchi disk identification result and the water depth information h recorded by the depth measurement component in real time, and takes water depth information h matching with the Secchi disk identification result and recorded by the depth measurement component as the water transparency measurement result.
4. A computer readable storage medium, wherein the computer readable storage medium stores a program code for measuring water transparency, and the program code comprises an instruction for executing the method for measuring water transparency according to any one of claims 1 to 2.
5. An electronic device, wherein the electronic device comprises a processor, the processor is coupled to a storage medium, and when the processor executes an instruction in the storage medium, the electronic device executes an instruction of implementing the method for measuring water transparency according to any one of claims 1 to 2.
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| AU2021104960A AU2021104960A4 (en) | 2021-08-05 | 2021-08-05 | Method and System for Measuring Water Transparency |
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