CN113325151A - Method and system for analyzing and evaluating water quality in aquaculture process - Google Patents
Method and system for analyzing and evaluating water quality in aquaculture process Download PDFInfo
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Abstract
The invention discloses a method and a system for analyzing and evaluating water quality in an aquaculture process, wherein the system comprises the following components: the system comprises a data acquisition module, a wireless communication module, a data quality control and storage module and a data analysis and evaluation module; the data acquisition module is used for acquiring water quality parameter data in the aquaculture process; the wireless communication module is used for transmitting the water quality parameter data; the data quality control and storage module is used for verifying the water quality parameter data and storing the data after marking; the data analysis and evaluation module is used for comparing the stored water quality parameter data to obtain water quality analysis and water quality evaluation. The invention can carry out comprehensive analysis by combining the growth condition of the cultured product through an evaluation method and obtain a method for improving the water quality according to the analysis result.
Description
Technical Field
The invention relates to the field of aquaculture, in particular to a method and a system for analyzing and evaluating water quality in an aquaculture process.
Background
Aquaculture has a long history, so that the aquaculture has abundant aquaculture experience and aquaculture technology in the field, fishery development is mainly a development mode mainly based on culture, the aquaculture is rapidly developed, the industrial layout is greatly changed, and the aquaculture is expanded from coastal areas, Yangtze river, Zhujiang river basin and other traditional aquaculture areas. With the rapid development of aquaculture, the aquaculture environment meets certain challenges, and the aquaculture water quality condition is not optimistic, so that the determination and analysis of the water quality condition in the aquaculture process become particularly important, and the method mainly exists in two aspects, namely the annual change of the water environment in the large environment and the influence of the increase of residual baits and aquaculture excrement on the water quality in the aquaculture process.
In the aquaculture process, the process and the method for detecting the water quality of farmers and analyzing and evaluating the water quality condition of the aquaculture in China have the following problems:
1. the manual water quality detection is time-consuming and labor-consuming, and data is difficult to record.
2. The recorded data is converted into paper, cannot be analyzed in an informatization mode, and cannot generate value in the later period.
3. Common water quality detection results usually only concern the numerical range of a single parameter, and the problem that a plurality of parameters cannot be put together for comprehensive analysis exists, so that detection records are difficult to play a greater value.
Disclosure of Invention
Aiming at the problems, the invention provides a method and a system for analyzing and evaluating water quality in an aquaculture process, which are used for solving the technical problems in the prior art, can carry out comprehensive analysis by combining the growth condition of a culture product through an evaluation method, and can obtain a method for improving the water quality according to the analysis result.
In order to achieve the purpose, the invention provides the following scheme: a system for analyzing and evaluating water quality in an aquaculture process, comprising: the system comprises a data acquisition module, a wireless communication module, a data quality control and storage module and a data analysis and evaluation module;
the data acquisition module is used for acquiring water quality parameter data in the aquaculture process;
the wireless communication module is used for transmitting the water quality parameter data;
the data quality control and storage module is used for verifying the water quality parameter data and storing the data after marking;
the data analysis and evaluation module is used for comparing the stored water quality parameter data to obtain water quality analysis and water quality evaluation.
Preferably, the data acquisition module comprises a water quality monitoring sensor and a PLC data processing unit; the water quality monitoring sensor is used for acquiring water quality parameter data in an aquaculture process, and the PLC data processing unit is used for processing the water quality parameter data and sending the processed water quality parameter data to the wireless communication module.
Preferably, the specific process of verifying the water quality parameter data is as follows: and based on the collected water quality parameter data, cleaning dirty data by adopting a CRC (cyclic redundancy check) method, moving the data which do not meet the rules and requirements to an error data record table, and analyzing the correct data.
Preferably, the water quality parameter data includes, but is not limited to, dissolved oxygen, temperature, pH.
A method for analyzing and evaluating water quality in an aquaculture process comprises the following steps:
s1, calibrating a water quality parameter sensor;
s2, recording growth information of the cultured object at regular time and acquiring water quality parameter data through the water quality parameter sensor;
s3, verifying, cleaning, analyzing and storing the water quality parameter data;
and S4, acquiring water quality analysis and water quality evaluation results according to the correlation information of the culture growth information and the stored water quality parameter data.
Preferably, the specific process of storing is as follows: and dividing the cultured object based on the growth stage, correspondingly marking the division result and the verified water quality parameter data, and storing the marked data.
Preferably, the specific process of water quality analysis is as follows: and obtaining the range of the water quality parameter data of the culture when the daily body length growth rate and the daily weight growth rate of the culture are at the highest values based on the culture growth information, namely the optimal range of different cultures in different water quality parameter data, and finishing water quality analysis.
Preferably, the water quality evaluation comprises single factor evaluation, pollution index evaluation and eutrophication evaluation.
The invention discloses the following technical effects:
the invention utilizes the technologies of water quality on-line monitoring equipment, big data storage, data analysis and the like to carry out high-efficiency processing and analysis on the water quality detection process and results in the aquaculture process, and carries out comprehensive analysis by combining the evaluation method with the growth condition of the aquaculture product, thereby overcoming the defect that the analysis is carried out only by focusing on the value of a single water quality detection parameter.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic diagram of the system of the present invention;
FIG. 2 is a flow chart of the method of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1, the invention provides a system for analyzing and evaluating water quality in an aquaculture process, which divides system modules into following flows according to data acquisition, quality control, storage, query, analysis and evaluation from the perspective of combining an actual aquaculture process and data analysis and evaluation: the device comprises a data acquisition module, a wireless communication module, a data quality control and storage module and a data analysis and evaluation module.
The data acquisition module comprises a water quality monitoring sensor and a PLC data processing unit; utilize water quality monitoring sensor, gather the water quality parameter data of aquaculture in-process, like pH, dissolved oxygen etc. give PLC to the water quality parameter data who measures through the cable and carry out preliminary treatment and retransmission to data, PLC sends the data after the preliminary treatment to front end data acquisition control center and wireless communication module, wireless communication module is used for transmitting water quality parameter data.
The data quality control and storage module is used for verifying the integrity, accuracy, consistency and rationality of the water quality parameter data acquired by the water quality sensor from the aspects of sources, types, contents, structures and the like, verifying, cleaning and analyzing the data according to an agreed rule, and storing the processed data into a database after marking according to a certain storage rule.
The data analysis and evaluation module is used for comparing the growth condition of each stage of the cultured product by adopting a big data analysis technology on the mass data stored in the warehouse, so that the cultured water quality is comprehensively and objectively analyzed and evaluated. According to the marked data of different growth stages, the daily body length growth rate and the daily weight growth rate of the cultured object are compared, the relation between the water quality condition and the cultured object growth is found out under the condition that other factors such as the feeding type, the feeding amount and the like are consistent, and therefore through a large amount of data comparison, the water quality parameters such as dissolved oxygen, temperature, pH and the like are within the range, the daily body length growth rate and the daily weight growth rate of the cultured object are highest, the optimal range of different water quality parameters is obtained for different cultured objects, if the water quality conditions exceed the range, the water quality conditions which are not beneficial to the growth of the cultured objects are obtained, and therefore the water quality is scored and evaluated according to the deviation condition of the water quality data and the optimal range of the water quality.
In a further scheme, the specific process of verifying the water quality parameter data comprises the following steps: and based on the collected water quality parameter data, a CRC (cyclic redundancy check) method is adopted to ensure the correctness and accuracy of data transmission, dirty data is cleaned, the data which does not accord with the rules and requirements are moved to an error data record table, and the data which accords with the rules, namely the correct data, is analyzed according to the requirements.
In a further aspect, the specific process of storing is as follows: the stored data are labeled according to different growth stages of the cultured object, the fields of the growth stages of the cultured object are reserved in the relevant storage data tables of the database, and the growth stages are recorded when the water quality data are stored, so that the labeling of the water quality data and the growth stages is realized.
Referring to fig. 2, the invention provides a method for analyzing and evaluating water quality in an aquaculture process, which comprises the following steps:
s1, calibrating a water quality parameter sensor, wherein the sensor needs to be calibrated before the sensing equipment launches, so that inaccurate monitoring data of the sensor is prevented;
s2, recording growth information of the cultured object at regular time and acquiring water quality parameter data through the water quality parameter sensor;
s3, verifying, cleaning, analyzing and storing the water quality parameter data;
the rule of the data verification is as follows: the data type, length, format and flag bit conditions are checked to verify that the specifications are met.
The data cleaning and analyzing rule is as follows: deleting the data which do not accord with the check rule, finishing data cleaning, analyzing the data which accord with the rule according to requirements, wherein NodeSerialnum in the first row represents equipment id, PHGvalue and PHGtemp in the second row represent pH value and temperature value of a pH sensor respectively, ORPvalue and ORPtemp in the third row represent conductivity data and temperature value … … DOvalue and DOtemp of the conductivity sensor respectively, end is an end statement, data or fields are separated by commas only, and the like, and finally warehousing and storing the analyzed data.
The rule of the data storage is as follows: the temperature of the storage warehouse adopts the temperature of a dissolved oxygen sensor, the growth stage of the cultured object is divided according to different types, the growth stage of the cultured object is added to the data of the storage warehouse, and the data is associated with the culture stage.
And S4, combining the water quality data with the physical sign data of the aquatic products by the system, combining the historical records of different parameters with the growth state of the cultured products, calculating the daily growth rate, the weekly growth rate and the monthly growth rate of the body length and the body weight of the cultured objects according to different time periods, finding out the water quality condition when the growth rate is higher, obtaining the optimal cultured water quality, and giving out the water quality evaluation result, wherein the water quality evaluation comprises single factor evaluation, pollution index evaluation and eutrophication evaluation.
The single factor evaluation specifically comprises:
Pi＝Ci/Si
in the formula, PiIs the pollution index of pollutant i, CiIs the concentration of contaminant i (mg/L), SiIs the emission standard (mg/L) of pollutant i;
the calculation method of the pH pollution index specifically comprises the following steps:
PpH＝(7.0-pH)/(7.0-pHsd)
and determining the pollution factor with the pollution index larger than 1 as the overproof pollutant in the water quality according to the single factor evaluation result.
The evaluation of the pollution index specifically comprises the following steps:
in the formula, PcAs an index of the degree of contamination, PmaxIs the maximum value of the single-factor pollution index, PiIs the contamination index of contaminant i and n is the number of contaminants monitored.
The eutrophication evaluation specifically comprises the following steps:
E＝COD×DIN×DIP×106/4500
wherein COD represents chemical oxygen demand and has a unit of mg/L; DIN represents inorganic nitrogen in mg/L; DIP represents inorganic phosphorus and has the unit of mg/L;
e is more than or equal to 1, the water body is eutrophicated; DIN is the average of nitrite-nitrogen + nitrate-nitrogen + ammonia-nitrogen (sum of nitrogen tristates, mg/L) in the data sheet over multiple levels at a site.
After the pollution degree and eutrophication of the water quality are determined, the water quality condition monitored by the sensor is combined with the optimal range of the water quality parameters of different breeding species to comprehensively evaluate the water quality. Different water quality parameters such as dissolved oxygen, pH and conductivity are respectively compared with the proper water quality range of the current stage of the culture, and the water quality is proved to be good within the range.
The invention discloses the following technical effects:
the invention utilizes the technologies of water quality on-line monitoring equipment, big data storage, data analysis and the like to carry out high-efficiency processing and analysis on the water quality detection process and results in the aquaculture process, and carries out comprehensive analysis by combining the evaluation method with the growth condition of the aquaculture product, thereby overcoming the defect that the analysis is carried out only by focusing on the value of a single water quality detection parameter.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus once an item is defined in one figure, it need not be further defined and explained in subsequent figures, and moreover, the terms "first", "second", "third", etc. are used merely to distinguish one description from another and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: 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 present invention in its spirit and scope. Are intended to be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A system for analyzing and evaluating water quality in an aquaculture process, comprising: the system comprises a data acquisition module, a wireless communication module, a data quality control and storage module and a data analysis and evaluation module;
the data acquisition module is used for acquiring water quality parameter data in the aquaculture process;
the wireless communication module is used for transmitting the water quality parameter data;
the data quality control and storage module is used for verifying the water quality parameter data and storing the data after marking;
the data analysis and evaluation module is used for comparing the stored water quality parameter data to obtain water quality analysis and water quality evaluation.
2. The system for analyzing and evaluating the water quality in the aquaculture process according to claim 1, wherein the data acquisition module comprises a water quality monitoring sensor and a PLC data processing unit; the water quality monitoring sensor is used for acquiring water quality parameter data in an aquaculture process, and the PLC data processing unit is used for processing the water quality parameter data and sending the processed water quality parameter data to the wireless communication module.
3. The system for analyzing and evaluating the water quality in the aquaculture process according to claim 1, wherein the specific process of verifying the water quality parameter data is as follows: and based on the collected water quality parameter data, cleaning dirty data by adopting a CRC (cyclic redundancy check) method, moving the data which do not meet the rules and requirements to an error data record table, and analyzing the correct data.
4. The system for analyzing and evaluating water quality in an aquaculture process of claim 3 wherein said water quality parameter data includes, but is not limited to, dissolved oxygen, temperature, pH.
5. A method for analyzing and evaluating water quality in an aquaculture process is characterized by comprising the following steps:
s1, calibrating a water quality parameter sensor;
s2, recording growth information of the cultured object at regular time and acquiring water quality parameter data through the water quality parameter sensor;
s3, verifying, cleaning, analyzing and storing the water quality parameter data;
and S4, acquiring water quality analysis and water quality evaluation results according to the correlation information of the culture growth information and the stored water quality parameter data.
6. The method for analyzing and evaluating the water quality in the aquaculture process according to claim 5, wherein the specific process of storing is as follows: and dividing the cultured object based on the growth stage, correspondingly marking the division result and the verified water quality parameter data, and storing the marked data.
7. The method for analyzing and evaluating the water quality in the aquaculture process according to claim 5, wherein the specific process of the water quality analysis is as follows: and obtaining the range of the water quality parameter data of the culture when the daily body length growth rate and the daily weight growth rate of the culture are at the highest values based on the culture growth information, namely the optimal range of different cultures in different water quality parameter data, and finishing water quality analysis.
8. The method for analyzing and evaluating the water quality in the aquaculture process according to claim 5, wherein the water quality evaluation comprises single factor evaluation, pollution index evaluation and eutrophication evaluation.
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