CN111339083A - Ballast water transfer optimization system based on ballast scheme database retrieval - Google Patents
Ballast water transfer optimization system based on ballast scheme database retrieval Download PDFInfo
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- 238000005457 optimization Methods 0.000 title claims abstract description 30
- 238000012546 transfer Methods 0.000 title claims abstract description 15
- 238000010276 construction Methods 0.000 claims abstract description 13
- 230000009471 action Effects 0.000 claims abstract description 4
- 238000007667 floating Methods 0.000 claims abstract description 4
- 238000012544 monitoring process Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 14
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- 238000004364 calculation method Methods 0.000 claims description 5
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- 238000011960 computer-aided design Methods 0.000 description 2
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/22—Indexing; Data structures therefor; Storage structures
- G06F16/2291—User-Defined Types; Storage management thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
- B63B39/02—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by displacement of masses
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
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Abstract
The invention discloses a ballast water allocation optimization system based on ballast scheme database retrieval, which comprises: reading hoisting parameters and establishing a target construction unit of a ballast scheme according to the parameters; the sensor unit is used for monitoring state information of the ship, wherein the state information comprises the water level height of a ballast water tank, the flow of each ballast pipeline, the opening state of each valve, the running state of a crane and the floating state information of the ship; the upper computer is used for receiving the ballast scheme transmitted by the target construction unit and the ship state information transmitted by the sensor unit, working out a ballast water transfer optimization scheme according to the received data information, judging whether the ship is in a safe state or not in a self-checking mode, judging whether hoisting is to be continuously executed or not and outputting an execution instruction; and the PLC receives the execution instruction information transmitted by the upper computer and controls the action of the ballast equipment according to the received instruction.
Description
Technical Field
The invention relates to the technical field of ship ballast load adjustment, in particular to a ballast water allocation optimization system based on ballast scheme database retrieval.
Background
The existing ship ballast system configuration usually has the defects of low load regulation speed, poor control precision, low automation degree and the like, and is difficult to meet the requirements of frequent change of sea conditions, quick completion of operation in a better calm sea condition period and increasing size of ships, and high-efficiency automatic ballast system and technology are urgently needed. The ballast efficiency can be greatly improved through the computer-aided design based on the ballast water allocation optimization model and the solving algorithm, and the method has good application value, but the corresponding time of computer-aided design calculation is too long, so that the formulation efficiency of the ballast scheme is greatly influenced, and particularly the online real-time optimization of the ballast scheme is difficult to meet.
Disclosure of Invention
According to the problems existing in the prior art, the invention discloses a ballast water allocation optimization system based on ballast scheme database retrieval, which specifically comprises
Reading hoisting parameters and establishing a target construction unit of a ballast scheme according to the parameters;
the sensor unit is used for monitoring state information of the ship, wherein the state information comprises the water level height of a ballast water tank, the flow of each ballast pipeline, the opening state of each valve, the running state of a crane and the floating state information of the ship;
the upper computer is used for receiving the ballast scheme transmitted by the target construction unit and the ship state information transmitted by the sensor unit, working out a ballast water transfer optimization scheme according to the received data information, judging whether the ship is in a safe state or not in a self-checking mode, judging whether hoisting is to be continuously executed or not and outputting an execution instruction;
and the PLC receives the execution instruction information transmitted by the upper computer and controls the action of the ballast equipment according to the received instruction.
Further, the upper computer stores the received ballast schemes and the state information of each ship in a itemized manner and stores the ballast schemes and the state information of each ship in a database, and simultaneously stores the ballast water allocation optimization schemes corresponding to each group of ballast schemes in the database.
Further, an experience correction module is arranged in the upper computer, when the ballast water transfer optimization scheme adopted in the construction process is not appropriate, the experience correction module modifies the parameter information of the optimized ballast scheme under the hoisting parameters according to the problems generated in the hoisting process, and stores the modified ballast scheme into a database.
Further, a case reasoning module is arranged in the upper computer, and the case reasoning module carries out case similarity calculation according to the received hoisting parameters, searches a ballast scheme meeting the parameters from a database and outputs the ballast scheme.
Due to the adoption of the technical scheme, the ballast water allocation optimization system based on the ballast scheme database retrieval is provided, the system obtains a large number of optimal allocation schemes of the ballast water based on the method principle of example reasoning and the ballast water allocation optimization scheme, and meanwhile, the existing ballast scheme is retrieved based on the similarity principle, and the ballast scheme with new problems is quickly obtained by modifying parameters, so that the formulation efficiency of the ballast scheme is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of the architecture of the system of the present invention;
FIG. 2 is a functional diagram of a database of deployment optimization schemes in the system of the present invention;
FIG. 3 is a flow chart of the acquisition of a pressurized water allocation optimization scheme in the system of the present invention;
FIG. 4 is a schematic diagram of a database modification process according to the present invention;
FIG. 5 is a flow chart of a scheme storage function in the present invention;
FIG. 6 is a flow chart of the optimization scheme retrieval function of the present invention.
Detailed Description
In order to make the technical solutions and advantages of the present invention clearer, the following describes the technical solutions in the embodiments of the present invention clearly and completely with reference to the drawings in the embodiments of the present invention:
the ballast water transfer optimization system based on ballast scheme database retrieval as shown in fig. 1 and 2 comprises a target construction unit, a sensor unit, an upper computer and a PLC (programmable logic controller).
Wherein, a user inputs hoisting parameters through the target construction unit and then establishes a ballast scheme.
The sensor unit is responsible for monitoring state information of the ship, wherein the state information comprises various states of the ship, such as the water level height of a ballast water tank, the flow rate of each ballast pipeline, the opening state of each valve, the running state of a crane, the floating state of the ship and the like.
The upper computer receives the ballast scheme transmitted by the target construction unit and the ship state information transmitted by the sensor unit, works out a ballast water transfer optimization scheme according to the received data information, judges whether the ship is in a safe state or not in a self-checking mode, judges whether hoisting is to be continuously executed or not, and outputs an execution instruction.
The PLC controller receives the execution instruction information transmitted by the upper computer and controls the action of the ballast equipment according to the received instruction. The PLC controller is widely applied to industry due to the advantages of stable performance, high reliability, simple use and the like, but complex algorithms are difficult to realize. The optimization program is mainly realized by MATLAB software, the MATLAB is mainly used for scientific calculation and algorithm simulation, and a complete tool kit is matched with the MATLAB, but field equipment can not be directly controlled generally. Therefore, the two can make good use of the advantages and avoid the disadvantages through the OPC technology communication, and achieve more ideal control effect. The PLC samples and outputs real-time data, a control algorithm is realized on the MATLAB, data transmission between the MATLAB and the PLC is realized through an OPC technology, and a software operation interface is realized by using a GUI built in the MATLAB.
Further, the upper computer judges whether the ship is in a safe state or not and whether hoisting should be continuously executed or not through a self-checking mode, and the specific mode of outputting the execution instruction is as follows: the specific information of the ship, including the type length, the type width, the type depth, the tonnage, the draft, the position of the ballast compartment, the water level of the ballast compartment and the like, and the hoisting information, including the hoisting quality, the hoisting position, the rotation speed, the end position of the operation angle and the like, are input on the operation interface by a user. Through the information, a specific ballast water allocation optimization scheme can be obtained. The self-checking mode can be a computer control program, and is to obtain PLC signal data by carrying out PLC programming on the scheme obtained by the optimization program and transmit the PLC signal data to the upper computer. The upper computer is internally provided with a feedback program, the feedback program is used for calculating basic data of a sensor obtained by the PLC and converting the basic data into relatively visual data, the data comprises a crane rotation angle, a lifting hook stress, a lifting height, water level heights of various ballast compartments, ship transverse and longitudinal inclination angles, ballast pipeline flow and the like, a chart and animation display is formed, and the ship state identification is carried out through a safety alarm program, so that the ship is always kept in a safe state.
Further, the upper computer stores the received ballast scheme and the state information of each ship in a itemized manner and stores the ballast scheme and the state information of each ship into a database, and the database has the following four functions of scheme input, scheme storage, database modification and optimized scheme calling. For the same ship type, ship parameters do not need to be input repeatedly, and the optimized ballast scheme in the hoisting process can be obtained only by inputting different hoisting parameters. The data base is input through the scheme, the storage capacity of the data base is increased, different ballast schemes are input continuously, and the content of the data base can be enriched; when some ballast schemes need to be adjusted, the database is opened to modify functions, and ship engineers continuously perfect the content of the database through engineering experience; the scheme storage inputs the optimized ballast scheme to be input and modified into a database for storage; and the optimization scheme is called, namely hoisting parameters are input into an optimization scheme database according to needs, and the database extracts data according to the ballast schemes in one-to-one correspondence and feeds the data back to users.
The operation flow of the scheme entry function is shown in fig. 3 and 4, n schemes are set and entered, the optimized ballast schemes under different parameters are calculated each time and are entered into the database, namely each entered hoisting parameter corresponds to one ballast scheme.
Further, an experience correction module is arranged in the upper computer, when the ballast water transfer optimization scheme adopted in the construction process is not appropriate, the experience correction module modifies the parameter information of the optimized ballast scheme under the hoisting parameters according to the problems generated in the hoisting process, and stores the modified ballast scheme into a database. When the optimization scheme adopted in the construction process is not appropriate in a specific working state and needs to be corrected through manual experience, after the hoisting process is finished, a ship engineer modifies the optimized ballast scheme database under the hoisting parameters according to problems generated in the hoisting process, stores the modified ballast scheme into a storage medium, and calls the optimized scheme under the hoisting parameters, namely the modified optimized ballast scheme.
Further, the scheme storage function is implemented by using a physical storage medium, wherein the hoisting parameters in the database and the optimized allocation schemes corresponding to the hoisting parameters one to one are used for invoking the optimized schemes, as shown in fig. 5.
Further, a case reasoning module is arranged in the upper computer, wherein the case reasoning module extracts an optimized scheme according to a case reasoning method, performs example similarity calculation by inputting hoisting parameters, searches a ballast scheme meeting the parameters from a database and outputs the ballast scheme through a computer, as shown in fig. 6.
Further, four types of keywords are designed in the database, respectively starting angles (α)1) An end angle (α)2) Hoisting quality (m) and ballast scheme (S). Wherein, the starting angle, the ending angle and the hoisting quality are input parameters, namely hoisting parameters, and the ballast scheme is used as output parameters. There is a one-to-one correspondence between input parameters and output parameters, i.e., each set of input parameters corresponds to a unique ballast scheme.
The invention designs a database calling program for optimizing a ballast scheme, and establishes a ballast water allocation scheme database under different hoisting parameters (crane running track, hoisting weight and the like). The establishment of the database can greatly shorten the preparation time of the ballast water transfer scheme before the ship is hoisted, namely, the ballast transfer data is transferred from the large database instead of the ballast transfer scheme which is temporarily calculated and formulated before the hoisting operation. The database design also facilitates the implementation of real-time online design of ballast transfer schemes. Therefore, the invention simultaneously realizes the design of the database calling interface and reduces the operation difficulty of the complex ballast calling model in the practical engineering application.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (4)
1. A ballast water transfer optimization system based on ballast scheme database retrieval is characterized by comprising:
reading hoisting parameters and establishing a target construction unit of a ballast scheme according to the parameters;
the sensor unit is used for monitoring state information of the ship, wherein the state information comprises the water level height of a ballast water tank, the flow of each ballast pipeline, the opening state of each valve, the running state of a crane and the floating state information of the ship;
the upper computer is used for receiving the ballast scheme transmitted by the target construction unit and the ship state information transmitted by the sensor unit, working out a ballast water transfer optimization scheme according to the received data information, judging whether the ship is in a safe state or not in a self-checking mode, judging whether hoisting is to be continuously executed or not and outputting an execution instruction;
and the PLC receives the execution instruction information transmitted by the upper computer and controls the action of the ballast equipment according to the received instruction.
2. The ballast water deployment optimization system based on ballast solution database retrieval according to claim 1, further characterized by: and the upper computer stores the received ballast schemes and the state information of each ship in a itemized manner and stores the ballast schemes and the state information of each ship in a database, and simultaneously stores the ballast water allocation optimization schemes corresponding to each group of ballast schemes in the database.
3. The ballast water deployment optimization system based on ballast solution database retrieval according to claim 2, further characterized by: and an experience correction module is arranged in the upper computer, and when the ballast water transfer optimization scheme adopted in the construction process is not appropriate, the experience correction module modifies the parameter information of the optimized ballast scheme under the hoisting parameters according to the problems generated in the hoisting process and stores the modified ballast scheme into a database.
4. The ballast water deployment optimization system based on ballast solution database retrieval according to claim 3, further characterized by: and a case reasoning module is arranged in the upper computer and used for carrying out case similarity calculation according to the received hoisting parameters, searching a ballast scheme meeting the parameters from a database and outputting the ballast scheme.
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Cited By (2)
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| CN113221247A (en) * | 2021-05-19 | 2021-08-06 | 大连海事大学 | Optimized calculation method for allocating and allocating ballast water of full-circle-slewing crane ship |
| CN113978662A (en) * | 2021-10-22 | 2022-01-28 | 大连海事大学 | Dynamic adjusting and stirring experimental device for ballast water of full-circle slewing crane ship |
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Cited By (4)
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| CN113221247A (en) * | 2021-05-19 | 2021-08-06 | 大连海事大学 | Optimized calculation method for allocating and allocating ballast water of full-circle-slewing crane ship |
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Application publication date: 20200626 |