CN112360625A - Intelligent fault diagnosis system for marine diesel engine based on expert system - Google Patents
Intelligent fault diagnosis system for marine diesel engine based on expert system Download PDFInfo
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- CN112360625A CN112360625A CN202011162076.6A CN202011162076A CN112360625A CN 112360625 A CN112360625 A CN 112360625A CN 202011162076 A CN202011162076 A CN 202011162076A CN 112360625 A CN112360625 A CN 112360625A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating or supervising devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating or supervising devices
- F02B77/083—Safety, indicating or supervising devices relating to maintenance, e.g. diagnostic device
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
- G01M15/05—Testing internal-combustion engines by combined monitoring of two or more different engine parameters
Abstract
The invention discloses an expert system-based intelligent fault diagnosis system for a marine diesel engine, which comprises an HMI client, a sensor acquisition module, a data processing module, a data storage module, an expert diagnosis system, a field communication module and a remote communication module. The invention intelligently judges the current fault type by using an expert system, accurately diagnoses the fault reason and positions the fault direction by analyzing the data parameters acquired by the diesel engine sensor in real time, and simultaneously provides a fault emergency maintenance strategy. A quick maintenance scheme can be provided for technicians or after-sales service personnel, and the service efficiency is improved; the system is designed with a role-dividing management function, different system management authorities are set for users, and the system is beneficial to the safety and maintenance of system operation.
Description
Technical Field
The invention relates to an expert system-based intelligent fault diagnosis system for a marine diesel engine, and belongs to the technical field of equipment fault diagnosis.
Background
The diesel engine is used as the heart of the power of the ship, and serious economic loss and even life safety are generated once the diesel engine fails. The actual situation is analyzed, the failure of the marine diesel engine is caused by a plurality of reasons, and a proper diagnosis technology is applied according to different expression form characteristics to promote the marine diesel engine to maintain a stable operation state. When analyzing the fault cause, various factors are comprehensively analyzed according to the structural complexity of the fault and the particularity of the operating environment, and the accuracy of the fault diagnosis result is improved.
The marine diesel engine has a plurality of moving parts, a complex structure and difficult fault diagnosis. The traditional diagnosis technology needs to be updated, new technology and new concepts are actively applied, various faults are accurately diagnosed, and a basis is provided for solving the faults. With the progress of modern computer science, the traditional fault diagnosis technology cannot meet the requirements, so the diesel fault diagnosis technology is developing towards intellectualization such as information fusion, online diagnosis, remote control, networking, virtualization and the like.
Disclosure of Invention
The invention aims to provide an expert system-based intelligent fault diagnosis system for a marine diesel engine, which solves the key problems of fault judgment, fault alarm, fault positioning, fault diagnosis, fault prediction and the like of the marine diesel engine.
The purpose of the invention is realized by the following technical scheme:
an expert system-based intelligent fault diagnosis system for a marine diesel engine comprises an HMI client, a sensor acquisition module, a data processing module, a data storage module, an expert diagnosis system and a communication module; the communication module comprises a field communication module and a remote communication module, the sensor acquisition module is connected with the data processing module, the data processing module is connected with the communication module, the communication module is connected with the data storage module, the data storage module is connected with the expert diagnosis system, and the expert diagnosis system is connected with the HMI client.
The object of the invention can be further achieved by the following technical measures:
furthermore, the HMI client is used for man-machine interaction and comprises personnel management, function authority distribution, password modification, fault monitoring, fault alarming, fault query, fault compiling, fault proofreading, model maintenance, after-sales service cases, training function and document help function.
Furthermore, the sensor acquisition module is used for acquiring data of each sensor on the diesel engine, and comprises a pressure sensor, a temperature sensor, a liquid level sensor, a differential pressure sensor, a position sensor, an oil-water sensor, an oil mist detector, an axial vibration monitor and a bearing wear sensor.
Furthermore, the data processing module is used for preprocessing data collected by the sensors on the diesel engine, filtering the collected data and filtering invalid data.
Furthermore, the data storage module is used for storing diesel engine fault experience information data, is a data storage center of the whole fault diagnosis system, comprises fault experience description storage, fault experience reasons storage and fault experience solutions storage, and can also store after-sales service cases, technical personnel training documents and help manual data.
Further, the expert diagnosis system comprises a knowledge base and an inference machine; firstly, collecting diesel engine fault phenomena, reasons and maintenance strategies, establishing a diesel engine fault network, determining common faults of the diesel engine by combining a fault mechanism, forming a fault diagnosis flow chart, and then constructing an expert system knowledge base; and the inference machine infers the fault phenomenon and infers the fault reason and the maintenance strategy which most accord with the reality by adopting a fuzzification big data mode.
Furthermore, the field communication module is used for acquiring data of the diesel engine safety protection system, the control system and the monitoring alarm system and sending the acquired data to the data processing module for processing.
Furthermore, the remote communication module sends sensor data, diesel engine operation data, monitoring alarm data and fault diagnosis data of the HMI client to the remote control center, and receives fault updating data, customer service data and training learning data sent by the remote control center.
Compared with the prior art, the invention has the beneficial effects that: the invention intelligently judges the current fault type by using an expert system, accurately diagnoses the fault reason and positions the fault direction by analyzing the data parameters acquired by the diesel engine sensor in real time, and simultaneously provides a fault emergency maintenance strategy. A quick maintenance scheme can be provided for technicians or after-sales service personnel, and the service efficiency is improved; formalized expert fault diagnosis knowledge can be effectively stored, so that automatic fault diagnosis is realized; the method is beneficial to the popularization and application of the knowledge of the maintenance expert, and effectively solves the current situation that the supply of the expert is not in demand; the system is designed with a role-dividing management function, different system management authorities are set for users, and the system is beneficial to the safety and maintenance of system operation.
Drawings
FIG. 1 is a system architecture diagram of the present invention.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
As shown in fig. 1, an expert system-based intelligent fault diagnosis system for a marine diesel engine comprises an HMI client, a sensor acquisition module, a data processing module, a data storage module, an expert diagnosis system and a communication module; the sensor acquisition module is connected with the data processing module, the data processing module is connected with the communication module, the communication module is connected with the data storage module, the data storage module is connected with the expert diagnosis system, and the expert diagnosis system is connected with the HMI client.
The HMI client is used for man-machine interaction and mainly comprises personnel management, function authority distribution, password modification, fault monitoring, fault alarming, fault inquiry, fault compiling, fault proofreading, model maintenance, after-sale service cases, training functions, help documents and the like. The function of the two-dimensional code is added into the fault information, so that the safety of information transmission can be ensured, after all, the fault solution is intangible property of a company, and pure characters are easy to obtain by third-party competitors. In addition, the two-dimension code can provide a quick solution for technicians or after-sales services, and project information, information of project responsible persons and compiling personnel can be put into the two-dimension code, so that the effects of root finding and source tracing are achieved. The instantaneity of information updating can be ensured, and the two-dimension code information can be updated in time as long as the quick solution is updated.
The sensor acquisition module is used for acquiring data of each sensor on the diesel engine and mainly comprises a pressure sensor, a temperature sensor, a liquid level sensor, a differential pressure sensor, a position sensor, an oil-water sensor, an oil mist detector, an axial vibration monitor, a bearing abrasion sensor and the like.
The data processing module can be used for preprocessing data collected by the sensors on the diesel engine, filtering the collected data and filtering invalid data.
The data storage module is mainly used for storing diesel engine fault experience information data, is a data storage center of the whole fault diagnosis system, and comprises a data storage module for storing fault experience description, fault experience reasons and fault experience solutions, and can also store after-sales service cases, technical personnel training documents, help manual data and the like.
The expert diagnosis system comprises a knowledge base and an inference machine. Firstly, collecting diesel engine fault phenomena, reasons and maintenance strategies, establishing a diesel engine fault network, determining common faults of the diesel engine by combining a fault mechanism, forming a fault diagnosis flow chart, and then constructing an expert system knowledge base. The inference machine can reason the fault phenomenon, and reason and maintenance strategies which best meet the reality are inferred by adopting a fuzzification big data mode.
The communication module comprises a field communication module and a remote communication module, wherein the field communication module is mainly used for acquiring data of the diesel engine safety protection system, the control system and the monitoring alarm system and sending the acquired data to the data processing module for further processing. The module supports various communication protocols such as a TCP/IP protocol, a CAN bus and a Modbus protocol.
The remote communication module can send sensor data, diesel engine operation data, monitoring alarm data, fault diagnosis data and the like of the HMI client to the remote control center, and can receive fault updating data, customer service data, training learning data and the like sent by the remote control center. The module supports 3G/4G/5G/GSM, Interne and satellite network for data connection.
In addition to the above embodiments, the present invention may have other embodiments, and any technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of the claims of the present invention.
Claims (8)
1. An expert system-based intelligent fault diagnosis system for a marine diesel engine is characterized by comprising an HMI client, a sensor acquisition module, a data processing module, a data storage module, an expert diagnosis system and a communication module; the communication module comprises a field communication module and a remote communication module, the sensor acquisition module is connected with the data processing module, the data processing module is connected with the communication module, the communication module is connected with the data storage module, the data storage module is connected with the expert diagnosis system, and the expert diagnosis system is connected with the HMI client.
2. The expert system based intelligent fault diagnosis system for marine diesel engine according to claim 1, wherein the HMI client is used for human-computer interaction including personnel management, function authority assignment, password modification, fault monitoring, fault alarming, fault inquiry, fault compilation, fault proofreading, model maintenance, after-sales service cases, training functions, and help documentation functions.
3. The expert system based intelligent fault diagnosis system for marine diesel engine according to claim 1, wherein said sensor collection module is used for collecting data of each sensor on the diesel engine, including pressure sensor, temperature sensor, liquid level sensor, differential pressure sensor, position sensor, water-in-oil sensor, oil mist detector, axial vibration monitor, bearing wear sensor.
4. The expert system based intelligent fault diagnosis system for marine diesel engine according to claim 1, wherein the data processing module preprocesses data collected by the sensors on the diesel engine, filters the collected data, and filters invalid data.
5. The expert system based intelligent fault diagnosis system for marine diesel engine according to claim 1, wherein the data storage module is used for storing diesel engine fault experience information data, is a data storage center of the whole fault diagnosis system, and comprises a function of storing fault experience description, fault experience reason and fault experience solution, and can also store after-sales service cases, technical personnel training documents and help manual data.
6. The expert system based intelligent fault diagnosis system for marine diesel engine according to claim 1, wherein said expert diagnosis system comprises a knowledge base, an inference engine; firstly, collecting diesel engine fault phenomena, reasons and maintenance strategies, establishing a diesel engine fault network, determining common faults of the diesel engine by combining a fault mechanism, forming a fault diagnosis flow chart, and then constructing an expert system knowledge base; and the inference machine infers the fault phenomenon and infers the fault reason and the maintenance strategy which most accord with the reality by adopting a fuzzification big data mode.
7. The expert system based intelligent fault diagnosis system for marine diesel engine according to claim 1, wherein the field communication module is used for acquiring data of the diesel engine safety protection system, the control system and the monitoring alarm system and sending the acquired data to the data processing module for processing.
8. The expert system based intelligent fault diagnosis system for marine diesel engine according to claim 1, wherein the remote communication module transmits sensor data, diesel engine operation data, monitoring alarm data and fault diagnosis data of the HMI client to the remote control center, and receives fault update data, customer service data and training learning data transmitted from the remote control center.
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| CN202011162076.6A CN112360625A (en) | 2020-10-27 | 2020-10-27 | Intelligent fault diagnosis system for marine diesel engine based on expert system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113359670A (en) * | 2021-06-15 | 2021-09-07 | 宁波静合科技有限公司 | Marine diesel engine fault diagnosis method based on data driving |
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| CN108492399A (en) * | 2018-02-11 | 2018-09-04 | 山东大学 | Bull-dozer fault diagnosis expert system for diesel engine based on big data analysis and method |
| CN108520080A (en) * | 2018-05-11 | 2018-09-11 | 武汉理工大学 | Automatic system of marine diesel-generator failure predication and health status online evaluation system and method |
| CN108520302A (en) * | 2018-03-23 | 2018-09-11 | 佛山科学技术学院 | A kind of diesel engine failure diagnosis system |
| CN108593302A (en) * | 2018-08-03 | 2018-09-28 | 中国船舶重工集团柴油机有限公司 | A kind of low-speed diesel engine fault diagnosis system |
| CN110738331A (en) * | 2019-09-19 | 2020-01-31 | 智慧航海（青岛）科技有限公司 | intelligent marine engine room system |
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2020
- 2020-10-27 CN CN202011162076.6A patent/CN112360625A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108492399A (en) * | 2018-02-11 | 2018-09-04 | 山东大学 | Bull-dozer fault diagnosis expert system for diesel engine based on big data analysis and method |
| CN108520302A (en) * | 2018-03-23 | 2018-09-11 | 佛山科学技术学院 | A kind of diesel engine failure diagnosis system |
| CN108520080A (en) * | 2018-05-11 | 2018-09-11 | 武汉理工大学 | Automatic system of marine diesel-generator failure predication and health status online evaluation system and method |
| CN108593302A (en) * | 2018-08-03 | 2018-09-28 | 中国船舶重工集团柴油机有限公司 | A kind of low-speed diesel engine fault diagnosis system |
| CN110738331A (en) * | 2019-09-19 | 2020-01-31 | 智慧航海（青岛）科技有限公司 | intelligent marine engine room system |
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| CN113359670A (en) * | 2021-06-15 | 2021-09-07 | 宁波静合科技有限公司 | Marine diesel engine fault diagnosis method based on data driving |
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