CN114572361B - Verification platform for ship intelligent cabin operation and maintenance system - Google Patents
Verification platform for ship intelligent cabin operation and maintenance system Download PDFInfo
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- CN114572361B CN114572361B CN202210214038.3A CN202210214038A CN114572361B CN 114572361 B CN114572361 B CN 114572361B CN 202210214038 A CN202210214038 A CN 202210214038A CN 114572361 B CN114572361 B CN 114572361B
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- 238000012423 maintenance Methods 0.000 title claims abstract description 122
- 238000012795 verification Methods 0.000 title claims abstract description 80
- 238000003745 diagnosis Methods 0.000 claims abstract description 35
- 230000036541 health Effects 0.000 claims abstract description 29
- 238000004422 calculation algorithm Methods 0.000 claims abstract description 28
- 238000012544 monitoring process Methods 0.000 claims abstract description 21
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- 238000006731 degradation reaction Methods 0.000 claims description 16
- 238000013461 design Methods 0.000 claims description 10
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- 238000004458 analytical method Methods 0.000 claims description 5
- 238000007689 inspection Methods 0.000 claims description 4
- 238000005299 abrasion Methods 0.000 claims description 3
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- 238000010586 diagram Methods 0.000 description 7
- 230000018109 developmental process Effects 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 3
- 238000005094 computer simulation Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
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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
- B63B79/00—Monitoring properties or operating parameters of vessels in operation
- B63B79/20—Monitoring properties or operating parameters of vessels in operation using models or simulation, e.g. statistical models or stochastic models
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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Abstract
The invention relates to a ship intelligent cabin operation and maintenance system verification platform, which comprises a virtual cabin operation and control platform and an intelligent cabin operation and maintenance system function verification operation and control platform; the virtual cabin control console is used for realizing the analog output of monitoring signals required by intelligent cabin specifications and comprises a sample database, analog signal control software, an analog signal controller, a high-speed AO/DO signal output card and a serial port communication module; the intelligent cabin operation and maintenance system function verification console comprises a signal integration cabinet, a reference intelligent cabin operation and maintenance system and an intelligent cabin operation and maintenance system to be tested, wherein the calculation result of the intelligent cabin operation and maintenance system to be tested is compared with a verification result report of the reference operation and maintenance system. The invention utilizes various signals conforming to the operation characteristics of cabin equipment to compare various functions and indexes of a reference intelligent cabin operation and maintenance system and an intelligent cabin operation and maintenance system to be tested to evaluate the measurement precision and response time of the intelligent cabin operation and maintenance system to be tested, and the characteristic parameters, the diagnosis algorithm and the health evaluation algorithm.
Description
Technical Field
The invention belongs to the technical field of ship cabin monitoring and health management, and particularly relates to a verification platform of an intelligent ship cabin operation and maintenance system.
Background
Ship intelligence is an important direction of future development of ships. The intelligentization of the nacelle is a necessary requirement for achieving unmanned, unmanned or energy-reducing autonomous ship development. The intelligent cabin can comprehensively utilize various information and data obtained by state monitoring, display the acquired signals in real time, extract characteristic parameters, and perform fault diagnosis and health state assessment to make scientific and reasonable maintenance decisions.
At present, an intelligent cabin is in a starting stage, a standardized intelligent cabin function verification means is lacking, a set of platform for verifying functions of an intelligent cabin operation and maintenance system is urgently required to be designed and developed, various indexes of a reference intelligent cabin system and an intelligent cabin operation and maintenance system to be tested are compared by utilizing standard signals conforming to operation characteristics of cabin equipment, measurement accuracy and response time, characteristic parameters, diagnostic algorithm and health evaluation algorithm accuracy of the intelligent cabin system to be tested and integrity of system functions are evaluated, and verification and evaluation technical means are provided for research and actual ship application of key technology of the intelligent cabin of a propelling ship.
Disclosure of Invention
The technical problem to be solved by the invention is to design a set of platform for verifying performance indexes and functions of an intelligent cabin operation and maintenance system by aiming at the problems in the prior art and combining the characteristics of the existing ship typical main propulsion power system according to the specification requirements of the intelligent cabin of the ship through system modeling, simulation test, database design, hardware design, software development and system integration.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the intelligent cabin operation and maintenance system verification platform for the ship comprises a virtual cabin operation and control platform and an intelligent cabin operation and maintenance system function verification operation and control platform;
the virtual cabin control console comprises a sample database, analog signal control software, an analog signal controller, a high-speed AO/DO signal output card and a serial port communication module;
the sample database comprises: the method comprises the steps of (1) simulating a normal thermal parameter sample set, a fault thermal parameter sample set and thermal parameter sample sets with different degrees by establishing an engine numerical simulation model, (2) simulating the normal thermal parameter sample set and the fault thermal parameter sample set by establishing a propulsion shafting working process simulation model, (3) simulating a normal quick-change signal sample set and a fault quick-change signal sample set formed by quick-change signals actually collected on a typical engine and a shafting, (4) simulating a characteristic parameter attenuation process along with time according to a device and system performance degradation rule by using a standard quick-change signal sample set which can be checked by engine and shafting signal characteristic design;
the analog signal control software can call the sample database and control the output of various signals of the sample database through the analog signal controller; the high-speed AO/DO signal output card and the serial port communication module are respectively connected with the analog signal controller, the analog signal controller outputs various quick-change signals of the new sensor of the analog cabin equipment to the intelligent cabin operation and maintenance system function verification console through the high-speed AO/DO signal output card, and outputs slow-change signals acquired by the existing control system of the analog cabin equipment to the intelligent cabin operation and maintenance system function verification console through the serial port communication module;
the intelligent cabin operation and maintenance system function verification console comprises a signal integration cabinet, a reference intelligent cabin operation and maintenance system and an intelligent cabin operation and maintenance system to be tested; the signal integration cabinet collects quick change signals of an engine and a propulsion shafting AO/DO and slow change signals of a thermal parameter sent by the virtual cabin control console, and divides the collected signals into two paths, wherein one path is transmitted to the reference intelligent cabin operation and maintenance system, and the other path is transmitted to the intelligent cabin operation and maintenance system to be tested;
the reference intelligent cabin operation and maintenance system comprises reference intelligent cabin operation and maintenance system software, and the reference intelligent cabin operation and maintenance system software comprises: (1) The signal acquisition precision and response time comparison module is used for acquiring standard signals of the sample database and calculating characteristic parameters by referring to the intelligent cabin operation and maintenance system to obtain signal acquisition precision, signal processing and display response time, so that the comparison and inspection of the intelligent cabin operation and maintenance system to be tested on the signal acquisition precision and response time is realized; (2) The accuracy verification module of the fault diagnosis algorithm is used for realizing the accuracy verification of the fault diagnosis algorithm in the intelligent cabin operation and maintenance system to be tested on the cabin equipment state diagnosis by using the fault diagnosis algorithm of the reference intelligent cabin operation and maintenance system and the accurate diagnosis result thereof through the collection of normal signals, different faults and signals with different fault degrees; (3) The health evaluation validity verification module is used for verifying the current state and life health evaluation of the intelligent cabin operation and maintenance system to be tested through setting the equipment and system performance degradation rule or standard equipment to be operated to a failure data set;
the intelligent cabin operation and maintenance system to be tested is a third party system and is installed on the intelligent cabin operation and maintenance system function verification console and connected with the signal integration cabinet, an analysis result of the intelligent cabin operation and maintenance system to be tested forms a result report to be tested, and the result report is compared with a reference operation and maintenance system verification result report to realize performance accuracy and function effectiveness verification of the intelligent cabin operation and maintenance system to be tested.
In the scheme, the sample database consists of a data sample set formed by an engine working process data output module, a propulsion shafting working process data output module, a cabin equipment actual measurement data sample set module, a standard quick change signal sample set module and a standard equipment degradation sample set module;
the engine working process data output module is used for realizing simulation of state signals of different fault degrees and parts by establishing the engine numerical simulation model and changing system parameters in the model, so as to obtain the normal thermal parameter sample set, the fault thermal parameter sample set and the thermal parameter sample sets with different fault degrees;
the propelling shafting working process data output module is used for changing parameters in a model by establishing a propelling shafting working process simulation model, so as to realize real-time change simulation of transverse vibration, longitudinal vibration, abrasion, temperature and pressure signals, thereby obtaining the normal thermal parameter sample set and the fault thermal parameter sample set;
the cabin equipment actual measurement data sample set module is used for realizing the real playback of signals in normal and different fault states of different equipment through classifying the upper dead center, crank angle, vibration and in-cylinder pressure signals, shafting vibration signals, phase signals and torsional vibration signals of the actual measurement engine in different states, verifying the accuracy of a fault diagnosis algorithm, and further obtaining the actual collected quick change signals on a typical engine and a shafting to form a normal quick change signal sample set and a fault quick change signal sample set;
the standard quick change signal sample set module standardizes the signals of cylinder pressure, cylinder vibration, top dead center and crank angle of each cylinder of the engine, vibration of a supercharger, vibration of a shaft system, phase and torsional vibration, changes signal amplitude, frequency, phase or duty ratio, and realizes uniqueness of characteristic values of a standard signal time domain and a standard signal frequency domain, so that an assuredly standard quick change signal sample set which accords with signal characteristics of the engine and the shaft system is obtained.
In the above scheme, the reference intelligent cabin operation and maintenance system software further includes: (4) The equipment and system performance monitoring modules realize real-time performance monitoring and display of cabin equipment through acquisition, analysis, processing and display of fast-varying signals and slow-varying signals; (5) The auxiliary decision-making module judges whether the decision-making needs to change the running state or not according to the monitoring diagnosis professional knowledge of the engine, the gear box and the shafting equipment and the signal result monitored by the equipment; (6) And the condition-based maintenance module provides reasonable maintenance scheme and time according to the existing health state of the equipment through fault diagnosis and health evaluation results.
In the above scheme, the analog signal control software is installed on the industrial personal computer, and includes: (1) The analog signal modules of different devices and systems are used for controlling fast-changing and slow-changing analog signals of the engine and the shafting, and the analog signal modules comprise standard signals and thermal parameters output control output by numerical simulation software; (2) The analog signal modules of different fault states are used for controlling the normal state and the rapid change signals of different fault degrees of the engine and the shafting; (3) The self-checking module is used for checking the hardware and the software program state according to the software operation flow; (4) The function verification configuration module is used for configuring different signal outputs according to different function verification requirements; (5) And the analog output signal display module calls each data of the database according to the signal types, the number and the classifications of different devices and systems, and visually displays the device signals to be tested currently through graphs and tables, thereby providing convenience for verifying the platform data.
In the above scheme, the fast-varying signal includes: engine top dead center, crank angle, cylinder pressure, vibration of each cylinder and vibration signals of a supercharger, bearing vibration signals at the input end and the output end of a gear box, transverse vibration signals, phase signals and torsional vibration signals of an output shaft; the slow-change signals comprise various equipment and system temperature, pressure and switching value signals.
In the above scheme, the virtual cabin console further comprises an analog output signal display module, wherein the analog output signal display module can call each data of the database according to signal types, quantity and classification of different devices and systems, and the device signals to be checked currently are visually displayed through graphs and tables, so that convenience is provided for verifying platform data for standard comparison.
In the scheme, the virtual cabin control console further comprises an engine, a propulsion shafting AO/DO signal output junction box and a thermal parameter slow-change signal output junction box; the input ends of the engine and propulsion shafting AO/DO signal output junction box are connected with the high-speed AO/DO signal output card, and the output ends are connected with the signal integration cabinet; the input end of the thermal parameter slow-change signal output junction box is connected with the serial port communication module, and the output end is connected with the signal integration cabinet.
The invention has the beneficial effects that:
(1) The virtual cabin control console provided by the invention can simulate and output signals such as various temperature and pressure slow changes of cabin equipment, and can simulate and output various quick change signals of a main propulsion system of a ship, including an engine, an accessory system, a gear box, a shafting and other newly added sensors, so that the state monitoring signal type required by intelligent cabin specification assessment can be met;
(2) The ship main propulsion system signals simulated by the virtual cabin control console accord with the operation characteristics of cabin equipment, and meanwhile, the virtual cabin control console can play back and transmit actual normal and fault state signals of the cabin equipment on line in real time, so that the problems of system fault diagnosis algorithm and health state evaluation verification are solved;
(3) Through the selection of quick and slow variable signals of the platform software engine and shafting equipment, the classification of signals in different states and the design of standard signals, the accuracy of monitoring parameters of an intelligent cabin operation and maintenance system, the accuracy of a fault diagnosis algorithm, the health evaluation and the validity verification of degradation degree can be realized, and the function and performance index evaluation capability of the intelligent cabin operation and maintenance system is formed;
(4) The platform outputs the cabin equipment standard signal, the normal state signal and the fault state signal type in a fast-changing and slow-changing signal output mode, so that the intelligent cabin operation and maintenance system can be verified on a real ship, the verification convenience problem in the system development process is solved, and the product development cost is reduced.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a block diagram of the overall structure of a verification platform of a ship intelligent cabin operation and maintenance system;
FIG. 2 is a marine engine and shafting signal profile;
FIG. 3 is a schematic diagram of a sample database in a virtual nacelle console according to the invention;
FIG. 4 is a block diagram of the analog signal control software of the virtual cabin console of the present invention;
fig. 5 is a functional block diagram of the intelligent nacelle operation and maintenance system function verification console of the present invention.
Detailed Description
For a clearer understanding of technical features, objects and effects of the present invention, a detailed description of embodiments of the present invention will be made with reference to the accompanying drawings.
The invention designs and develops a ship intelligent cabin operation and maintenance system verification platform, and provides an implementation mode for evaluating the accuracy of the measurement precision and response time, the characteristic parameters, the diagnosis algorithm and the health evaluation algorithm of the intelligent cabin operation and maintenance system to be tested by comparing various functions and indexes of the reference intelligent cabin operation and maintenance system and the intelligent cabin operation and maintenance system to be tested by utilizing various signals conforming to the operation characteristics of cabin equipment.
The following describes the overall architecture of the verification platform of the ship intelligent cabin operation and maintenance system.
As shown in fig. 1, the ship intelligent nacelle operation and maintenance system verification platform comprises a virtual nacelle operation and maintenance platform and an intelligent nacelle operation and maintenance system function verification operation and maintenance platform. The virtual cabin console is used for realizing the analog output of the monitoring signals required by the intelligent cabin specification. The intelligent cabin operation and maintenance system function verification console is used for realizing the function verification of accuracy verification of monitoring parameters of the intelligent cabin operation and maintenance system to be tested, accuracy verification of a fault diagnosis algorithm, health assessment, degradation degree validity verification and the like.
The virtual cabin control console comprises a sample database, analog signal control software, an analog output signal display module, an analog signal controller, a high-speed AO/DO signal output card, a serial port communication module, an engine and propulsion shafting AO/DO signal output junction box and a thermal parameter slow-change signal output junction box. The analog signal control software can call the sample database and control the output of various signals of the sample database through the analog signal controller. The high-speed AO/DO signal output card and the serial port communication module are respectively connected with the analog signal controller; the input end of an AO/DO signal output junction box of the engine and the propulsion shafting is connected with a high-speed AO/DO signal output card, and the output end is connected with a signal integration cabinet; the input end of the thermal parameter slow-change signal output junction box is connected with the serial port communication module, and the output end is connected with the signal integration cabinet. The analog signal controller outputs various quick-change signals of the new sensor of the analog cabin equipment to the intelligent cabin operation and maintenance system function verification console through the high-speed AO/DO signal output card, and outputs slow-change signals acquired by the existing control system of the analog cabin equipment to the intelligent cabin operation and maintenance system function verification console through the serial port communication module. The analog output signal display module can call each data of the database according to the signal types, the number and the classifications of different devices and systems, and the device signals to be tested currently are visually displayed through graphs and tables, so that convenience is provided for verifying the platform data for standard comparison.
The intelligent cabin operation and maintenance system function verification console comprises a signal integration cabinet, a reference intelligent cabin operation and maintenance system and an intelligent cabin operation and maintenance system to be tested. The signal integration cabinet collects quick change signals and thermal parameter slow change signals of an engine and a propulsion shafting AO/DO sent by the virtual cabin control platform, and divides the collected signals into two paths, one path is transmitted to the reference intelligent cabin operation and maintenance system, and the other path is transmitted to the intelligent cabin operation and maintenance system to be tested. The reference intelligent nacelle operation and maintenance system includes reference intelligent nacelle operation and maintenance system hardware (simply referred to as "reference hardware") and reference intelligent nacelle operation and maintenance system software (simply referred to as "reference software"). The reference hardware processes and ethernet communicates virtual cabin analog output signals acquired by the signal integration cabinet, and data is transmitted to the reference software through a multi-port transponder (HUB). Algorithms such as monitoring diagnosis and health management are embedded in the reference software, the reference software can be updated, the reference software has the function of a module for comparison with an intelligent cabin operation and maintenance system to be tested, has the functions of verifying standard signals, performance accuracy and functional validity, can realize the functions of monitoring diagnosis, health management, auxiliary decision making and optionally maintenance required by the intelligent cabin, and can print out verification function results. The intelligent cabin operation and maintenance system to be tested is a third party system and is installed on the intelligent cabin operation and maintenance system function verification console and connected with the signal integration cabinet, the calculation result of the intelligent cabin operation and maintenance system to be tested forms a result report to be tested, and the result report is compared with the reference operation and maintenance system verification result report to realize performance accuracy and function effectiveness verification of the intelligent cabin operation and maintenance system to be tested.
Several important modules in the verification platform of the intelligent cabin operation and maintenance system of the ship are described in detail below.
1. Sample database
In order to avoid loss of generality, a signal distribution diagram of a main propulsion system simulated by the virtual cabin console is shown in fig. 2, and mainly comprises an engine (taking a 6-cylinder diesel engine as an example), a reduction gear box and a shafting, wherein simulated signals mainly comprise cylinder pressure signals, cylinder vibration signals, supercharger vibration signals, top dead center and crank angle signals of each cylinder of the engine, vibration signals of an input end and an output end of the gear box, and transverse vibration signals, phase signals and torsional vibration signals of the shafting of the gear box, and the partial signals are quick change signals; the engine side monitoring system outputs the thermal parameters of the fuel oil, the lubricating oil, the cooling, the pressurizing and other systems, and the partial signals are slow-change signals.
For the cylinder pressure signal, the cylinder vibration signal, the supercharger vibration signal, the top dead center and the crank angle signal of each cylinder of the engine, the vibration signals of the input end and the output end of the gear box, the transverse vibration signals, the phase signals and the torsional vibration signals of the shafting are quick change signals, and the signals are divided into actual measurement normal state and fault state, and the output of the signals is realized through high-speed AO and DO board cards.
And for the thermal parameters of the engine fuel, the lubricating oil, the cooling and the pressurizing, the shafting temperature and the pressure thermal parameters of the engine, which are output by the machine side monitoring system, the signals are slow-change signals, and the output of the signals is realized by using a numerical simulation model through a serial port communication module.
The invention designs a sample database for function and performance verification, which consists of a data sample set formed by an engine working process data output module, a propulsion shafting working process data output module, a cabin equipment actual measurement data sample set module, a standard quick change signal sample set module and a standard equipment degradation sample set module.
With reference to fig. 1 and 3, an engine working process data output module establishes an engine numerical simulation model and simulates input-output DLL control files through Simulink or other modeling software, changes system parameters such as engine fuel, lubricating oil, cooling water and pressurization in the model, and realizes the simulation of running state signals of different fault degrees and parts so as to form a model-based engine real-time simulation thermal parameter sample set, wherein the model-based engine real-time simulation thermal parameter sample set comprises a normal thermal parameter sample set, a fault thermal parameter sample set and different degrees of thermal parameter sample sets.
The propelling shafting working process data output module is used for changing parameters such as shafting external force, bearing support, working state and the like in the model by establishing a propelling shafting working process multi-body dynamics simulation model, and realizing real-time change of signals such as shafting transverse vibration, longitudinal vibration, abrasion, temperature, pressure and the like so as to form a model-based propelling shafting real-time simulation thermal parameter sample set, wherein the model-based propelling shafting real-time simulation thermal parameter sample set comprises a normal thermal parameter sample set and a fault thermal parameter sample set.
And the cabin equipment actual measurement data sample set module is used for realizing the real playback of signals of different equipment normal and different fault states by classifying signals of top dead center, crank angle, vibration and in-cylinder pressure of an actual measurement engine, shafting vibration signals, phase signals and torsional vibration signals, and verifying the accuracy of a fault diagnosis algorithm so as to form normal and fault quick change signal sample sets formed by the typical engine and the quick change signals actually collected on the shafting.
The standard quick change signal sample set module is used for standardizing the cylinder pressure, the cylinder vibration, the top dead center and the crank angle of each cylinder of the engine, the vibration of a supercharger, the vibration, the phase and the torsional vibration of a shaft system, changing the amplitude, the frequency, the phase or the duty ratio of the signals, and realizing the uniqueness of the characteristic values of the time domain and the frequency domain of the standard signals so as to form an assuredly standard quick change signal sample set which accords with the signal characteristics of the engine and the shaft system.
And the standard equipment degradation sample set module is used for simulating the equipment health state attenuation process by establishing degradation models determined by the engine, the gear box and the output shaft, so that degradation sample sets of different health states which change with time are obtained.
According to the characteristics of the different data, a sample database meeting the requirements of intelligent engine room specifications is formed by classifying signal types, engine room equipment and states thereof, so that the follow-up data can be conveniently supplemented and expanded, and the platform can adapt to more ships and engine rooms of different types.
2. Analog signal control software
The analog signal control software is installed on the industrial personal computer, and the specific composition is shown in fig. 4, and the analog signal control software comprises analog signal modules of different equipment and systems, analog signal modules of different fault states, a self-checking module, a function verification configuration module and an analog output signal display module.
The analog signal modules of different devices and systems are used for controlling the fast-varying and slow-varying analog signals of the engine and the shafting, and comprise analog output of the slow-varying signals output by the numerical simulation software and output control functions of standard signals.
The analog signal modules in different fault states control the normal state and the rapid change signals in different fault states of the engine and the shafting.
The self-checking module performs self hardware checking and software program state checking according to the software operation flow.
The function verification configuration module configures different signal outputs according to different function verification requirements, such as signal accuracy verification, validity verification and performance verification.
The analog output signal display module can call each data in the database according to the signal types, the number and the classification of different devices and systems, and the current device signals to be tested are visually displayed through graphs and tables, so that convenience is provided for verifying platform data standard matching.
3. Reference intelligent cabin operation and maintenance system software
Reference to the intelligent nacelle operation and maintenance system reference software specific compositions can be seen in fig. 5, comprising:
the acquisition precision and response time comparison module is used for acquiring standard signals of the database and calculating characteristic parameters to obtain response time such as signal acquisition precision, signal processing and display and the like, so that the comparison and inspection of the intelligent cabin operation and maintenance system to be tested on the signal acquisition precision and the response time is realized; the accuracy verification module of the fault diagnosis algorithm is used for realizing the accuracy verification of the fault diagnosis algorithm in the intelligent cabin operation and maintenance system to be tested on the state diagnosis of cabin equipment by acquiring normal signals, different faults and signals with different fault degrees and utilizing the fault diagnosis algorithm of the reference intelligent cabin operation and maintenance system and the accurate diagnosis result thereof;
the health evaluation validity verification module is used for verifying the health evaluation of the current state, the service life and the like of the cabin equipment by the intelligent cabin operation and maintenance system to be tested through setting equipment and a system performance degradation rule or standard equipment to run to a failure data set;
the equipment and system performance monitoring modules realize real-time performance monitoring and display of cabin equipment through acquisition, analysis, processing and display of fast-changing signals, thermal parameters and other slow-changing signals;
the auxiliary decision-making module judges whether the decision-making needs to change the running state or not according to the monitoring diagnosis professional knowledge of the equipment such as the engine, the gear box, the shafting and the like and the signal result monitored by the equipment;
and the condition-based maintenance module provides reasonable maintenance scheme and time according to the existing health state of the equipment through fault diagnosis and health evaluation results.
The realization of each verification function of the verification platform of the intelligent ship cabin operation and maintenance system is described below.
1) And the virtual cabin control console outputs standard signals with certain preset amplitude and frequency, so that the data acquisition of the intelligent cabin operation and maintenance system to be tested is realized, the acquisition precision, response time and other performances of the system are compared, and the comparison and inspection of the system monitoring parameters are realized.
2) And detecting fault diagnosis results (fault types and fault degrees) of the intelligent cabin operation and maintenance system to be detected through preset normal state and fault state simulation signals (different faults and fault degrees of the engine and the propulsion shafting), and realizing the accuracy verification of a fault diagnosis algorithm.
3) And in a certain period of time, simulating the decay process of the characteristic parameters along with time according to the equipment or system performance decay law, and checking the health state evaluation result of the intelligent cabin operation and maintenance system to be tested to realize the validity verification of the health evaluation algorithm.
4) And (3) presetting standard indicator diagram signals, comparing the maximum detonation pressure value extracted by the system to be detected with corresponding characteristic parameters such as rotation angle, compression pressure, average indication pressure, indication power and the like, and verifying the accuracy of an indicator diagram characteristic parameter extraction algorithm.
5) The method comprises the steps of presetting standard vibration signals (including displacement), comparing characteristic parameters such as time domain RMS value, skewness, kurtosis, peak value factor, waveform factor, pulse factor and margin factor extracted by a system to be tested, and verifying the accuracy of a vibration signal (including displacement) characteristic parameter extraction algorithm.
6) And presetting standard instantaneous rotating speed and torsional vibration signals, comparing characteristic parameters such as average rotating speed, rotating speed fluctuation rate, rotating speed fluctuation value of each cylinder, torsion angle fluctuation value and the like extracted by a system to be tested, and verifying the accuracy of an instantaneous rotating speed and torsional vibration characteristic parameter extraction algorithm.
In summary, according to the requirements of the intelligent cabin specification of the ship, the invention combines the characteristics of the typical main propulsion power system of the ship at present, and through system modeling, simulation test, database design, hardware design, software development and system integration, a set of platform for performance index and function verification of the intelligent cabin operation and maintenance system is invented, and through the intelligent cabin verification platform of the ship, the measurement precision and response time of the intelligent cabin operation and maintenance system to be tested are evaluated by comparing various signals conforming to the operation characteristics of cabin equipment with various functions and indexes of the intelligent cabin operation and maintenance system to be tested, and characteristic parameters, diagnosis algorithm and health evaluation algorithm are provided for researching the key technology of the intelligent cabin of the propulsion ship and applying the intelligent cabin to a real ship.
The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.
Claims (7)
1. The intelligent cabin operation and maintenance system verification platform for the ship is characterized by comprising a virtual cabin operation and control platform and an intelligent cabin operation and maintenance system function verification operation and control platform;
the virtual cabin control console comprises a sample database, analog signal control software, an analog signal controller, a high-speed AO/DO signal output card and a serial port communication module;
the sample database comprises: the method comprises the steps of (1) simulating a normal thermal parameter sample set, a fault thermal parameter sample set and thermal parameter sample sets with different degrees by establishing an engine numerical simulation model, (2) simulating the normal thermal parameter sample set and the fault thermal parameter sample set by establishing a propulsion shafting working process simulation model, (3) simulating a normal quick-change signal sample set and a fault quick-change signal sample set formed by quick-change signals actually collected on a typical engine and a shafting, (4) simulating a characteristic parameter attenuation process along with time according to a device and system performance degradation rule by using a standard quick-change signal sample set which can be checked by engine and shafting signal characteristic design;
the analog signal control software can call the sample database and control the output of various signals of the sample database through the analog signal controller; the high-speed AO/DO signal output card and the serial port communication module are respectively connected with the analog signal controller, the analog signal controller outputs various quick-change signals of the new sensor of the analog cabin equipment to the intelligent cabin operation and maintenance system function verification console through the high-speed AO/DO signal output card, and outputs slow-change signals acquired by the existing control system of the analog cabin equipment to the intelligent cabin operation and maintenance system function verification console through the serial port communication module;
the intelligent cabin operation and maintenance system function verification console comprises a signal integration cabinet, a reference intelligent cabin operation and maintenance system and an intelligent cabin operation and maintenance system to be tested; the signal integration cabinet collects quick change signals of an engine and a propulsion shafting AO/DO and slow change signals of a thermal parameter sent by the virtual cabin control console, and divides the collected signals into two paths, wherein one path is transmitted to the reference intelligent cabin operation and maintenance system, and the other path is transmitted to the intelligent cabin operation and maintenance system to be tested;
the reference intelligent cabin operation and maintenance system comprises reference intelligent cabin operation and maintenance system software, and the reference intelligent cabin operation and maintenance system software comprises: (1) The signal acquisition precision and response time comparison module is used for acquiring standard signals of the sample database and calculating characteristic parameters by referring to the intelligent cabin operation and maintenance system to obtain signal acquisition precision, signal processing and display response time, so that the comparison and inspection of the intelligent cabin operation and maintenance system to be tested on the signal acquisition precision and response time is realized; (2) The accuracy verification module of the fault diagnosis algorithm is used for realizing the accuracy verification of the fault diagnosis algorithm in the intelligent cabin operation and maintenance system to be tested on the cabin equipment state diagnosis by using the fault diagnosis algorithm of the reference intelligent cabin operation and maintenance system and the accurate diagnosis result thereof through the collection of normal signals, different faults and signals with different fault degrees; (3) The health evaluation validity verification module is used for verifying the current state and life health evaluation of the intelligent cabin operation and maintenance system to be tested through setting the equipment and system performance degradation rule or standard equipment to be operated to a failure data set;
the intelligent cabin operation and maintenance system to be tested is a third party system and is installed on the intelligent cabin operation and maintenance system function verification console and connected with the signal integration cabinet, an analysis result of the intelligent cabin operation and maintenance system to be tested forms a result report to be tested, and the result report is compared with a reference operation and maintenance system verification result report to realize performance accuracy and function effectiveness verification of the intelligent cabin operation and maintenance system to be tested.
2. The ship intelligent cabin operation and maintenance system verification platform according to claim 1, wherein the sample database is composed of a data sample set formed by an engine working process data output module, a propulsion shafting working process data output module, a cabin equipment actual measurement data sample set module, a standard quick change signal sample set module and a standard equipment degradation sample set module;
the engine working process data output module is used for realizing simulation of state signals of different fault degrees and parts by establishing the engine numerical simulation model and changing system parameters in the model, so as to obtain the normal thermal parameter sample set, the fault thermal parameter sample set and the thermal parameter sample sets with different fault degrees;
the propelling shafting working process data output module is used for changing parameters in a model by establishing a propelling shafting working process simulation model, so as to realize real-time change simulation of transverse vibration, longitudinal vibration, abrasion, temperature and pressure signals, thereby obtaining the normal thermal parameter sample set and the fault thermal parameter sample set;
the cabin equipment actual measurement data sample set module is used for realizing the real playback of signals in normal and different fault states of different equipment through classifying the upper dead center, crank angle, vibration and in-cylinder pressure signals, shafting vibration signals, phase signals and torsional vibration signals of the actual measurement engine in different states, verifying the accuracy of a fault diagnosis algorithm, and further obtaining the actual collected quick change signals on a typical engine and a shafting to form a normal quick change signal sample set and a fault quick change signal sample set;
the standard quick change signal sample set module standardizes the cylinder pressure, the cylinder vibration, the top dead center and the crank angle of each cylinder of the engine, the vibration of a supercharger, the vibration, the phase and the torsional vibration of a shaft system, changes the amplitude, the frequency, the phase or the duty ratio of the signals, and realizes the uniqueness of the characteristic values of the time domain and the frequency domain of the standard signals, thereby obtaining an inspectable standard quick change signal sample set conforming to the signal characteristics of the engine and the shaft system;
the standard equipment degradation sample set module realizes simulation of the equipment health state attenuation process by establishing degradation models determined by the engine, the gear box and the output shaft, so as to obtain degradation sample sets of different health states which change with time.
3. The marine intelligent nacelle operation and maintenance system verification platform of claim 1, wherein the reference intelligent nacelle operation and maintenance system software further comprises: (4) The equipment and system performance monitoring modules realize real-time performance monitoring and display of cabin equipment through acquisition, analysis, processing and display of fast-varying signals and slow-varying signals; (5) The auxiliary decision-making module judges whether the decision-making needs to change the running state or not according to the monitoring diagnosis professional knowledge of the engine, the gear box and the shafting equipment and the signal result monitored by the equipment; (6) And the condition-based maintenance module provides reasonable maintenance scheme and time according to the existing health state of the equipment through fault diagnosis and health evaluation results.
4. The marine intelligent nacelle operation and maintenance system verification platform of claim 1, wherein the analog signal control software is installed on an industrial personal computer, and comprises: (1) The analog signal modules of different devices and systems are used for controlling fast-changing and slow-changing analog signals of the engine and the shafting, and the analog signal modules comprise standard signals and thermal parameters output control output by numerical simulation software; (2) The analog signal modules of different fault states are used for controlling the normal state and the rapid change signals of different fault degrees of the engine and the shafting; (3) The self-checking module is used for checking the hardware and the software program state according to the software operation flow; (4) The function verification configuration module is used for configuring different signal outputs according to different function verification requirements; (5) And the analog output signal display module calls each data of the database according to the signal types, the number and the classifications of different devices and systems, and visually displays the device signals to be tested currently through graphs and tables, thereby providing convenience for verifying the platform data.
5. The marine intelligent nacelle operation and maintenance system verification platform of claim 1, wherein the fast-varying signal comprises: engine top dead center, crank angle, cylinder pressure, vibration of each cylinder and vibration signals of a supercharger, bearing vibration signals at the input end and the output end of a gear box, transverse vibration signals, phase signals and torsional vibration signals of an output shaft; the slow-change signals comprise various equipment and system temperature, pressure and switching value signals.
6. The ship intelligent engine room operation and maintenance system verification platform according to claim 1, wherein the virtual engine room operation and control platform further comprises an analog output signal display module, the analog output signal display module can call each data of the database according to signal types, numbers and classifications of different equipment and systems, and equipment signals to be verified currently are visually displayed through graphs and tables, so that convenience is provided for verification platform data alignment.
7. The ship intelligent cabin operation and maintenance system verification platform according to claim 1, wherein the virtual cabin control platform further comprises an engine and propulsion shafting AO/DO signal output junction box and a thermal parameter slow-change signal output junction box; the input ends of the engine and propulsion shafting AO/DO signal output junction box are connected with the high-speed AO/DO signal output card, and the output ends are connected with the signal integration cabinet; the input end of the thermal parameter slow-change signal output junction box is connected with the serial port communication module, and the output end is connected with the signal integration cabinet.
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