JP4286760B2 - A marine pneumatic self-diagnosis system and method, and a computer-readable recording medium on which a program for realizing the method is recorded. - Google Patents

Description

  The present invention relates to a ship's pneumatic self-diagnosis system, and more specifically, monitors the operating state of a pneumatic system (pneumatic control system) that controls start / stop / adjustment of a ship's main engine in real time, Diagnosis of failure and indication of failure location, storage of collected operation state values, enabling future simulation, and system simulation of the system itself is possible. The present invention relates to a ship pneumatic system self-diagnosis system and method, and a computer-readable recording medium on which a program for realizing the method is recorded.

  The pneumatic system (Pneumatic system) means a pneumatic system in a dictionary sense. In general, the pneumatic system of a marine main engine is a starting system, fuel system, electric / electronic system, speed control of the main engine. It is combined with systems such as aircraft, safety system, mechanical connection system, piping, etc., and main engine start, forward / reverse, stop, emergency stop by controlling the air flow of such system Control the operation.

  That is, a general ship main engine control method is to transfer a user's operation command to each device as an electrical signal or a direct air pressure signal to control the pneumatic system. In this system, the user's operation command is finally applied to the main engine.

  The air signal of the pneumatic system used at the start of the main engine in an actual ship is transferred to each part of the main engine at a fast speed of about 3 to 5 seconds, but there is no monitoring system, The abnormality and failure of each device have been judged only by the success or failure of the engine start.

  However, such a pneumatic system is a system that is extremely important in the operation of a ship and directly linked to ensuring the stability of the ship. However, the configuration and operating principle of the pneumatic system are extremely complex and enormous. For this reason, ship operators cannot easily learn the configuration and operating principle, and it is difficult to check the failure availability, failure location, and failure cause at the time of failure. There was a problem that there was a risk of large-scale maritime accidents resulting from ship collision, contact, grounding, etc. due to inability to adjust the engine.

  The present invention is intended to solve such a conventional problem. The purpose of the present invention is to attach a sensor to a pneumatic system and use a monitoring system to start a ship main engine in the process of starting, moving forward / reverse, stopping, and emergency stopping. It is possible to monitor the operating status of the system in real time, so that when a failure occurs in the pneumatic system, it is possible to quickly diagnose the possibility of failure and grasp the specific failure location, so that a countermeasure can be taken in a short time. It is an object of the present invention to provide a ship's pneumatic self-diagnosis system that can prevent the risk of large marine accidents resulting from the grounding and collision of a ship due to a delay in failure measures, since the failure can be solved upright.

  In addition, using the simulation function of the pneumatic system, the pressure display and changes are made so that the user can visually check the status of various devices and systems in real time without having to “start / stop” and “operation” of the actual engine of the ship. It is an object to provide a ship pneumatic self-diagnosis system capable of presenting an effective response method in the event of a failure by displaying an operation flow according to.

  In addition, the system user can learn the operating principle of the pneumatic system using the virtual failure simulation function, and reproduce the operating state value stored in the database in the next simulation, so that the exact cause of the failure If a failure occurs suddenly at sea, data related to the failed device is transferred to the land via a wireless communication network, and the failure status is re-expressed by simulation to quickly grasp the condition and take measures. It is to provide a pneumatic self-diagnosis system for ships.

  In order to achieve the above object, a pneumatic self-diagnosis system for a ship according to the present invention is a sensor group that is attached to a device to be monitored and generates and transmits a pressure state value indicating a change in pressure; A programmable logic controller in charge of signal relay for transferring the pressure state value sent from the communication module to the communication module; and the pressure state value from the programmable logic controller (hereinafter referred to as “PLC”) A communication module that sequentially receives a plurality of signal data, decodes the pressure state value into flow data, and transfers the flow data to a control module; stores the flow data transferred from the communication module in a database; Store data in the database A control module for diagnosing normality by comparing with reference information for normal operation by device according to the flow state stored, generating a command according to the comparison result as a status signal and transferring it to the display module; received from the control module According to the comparison result, the operation state of each device is configured to include a display module that expresses dynamic graphics on the monitor screen as a whole of the pneumatic system of the ship.

  In addition, the ship's pneumatic self-diagnosis system of the present invention further includes a simulation module that simulates the entire system just by inputting to the screen without the operation of the actual engine, and expresses dynamic graphics on the screen. And

  In addition, the pneumatic self-diagnosis method for a ship according to the present invention has a sensor attached to the pneumatic system of the ship's main engine and transfers user operation commands to each device as an electrical signal or a direct pneumatic signal. In the self-diagnosis method for monitoring the pneumatic system of the ship's main engine, a sensor is attached to at least one of the pneumatic system devices, and at least one pressure fluctuation is measured and the pressure state value is measured. Determining at least one or more flow data for determining the state value as a state signal; whether the flow data is included in a range of specific pressure state values assigned to a library for each device Checking whether the pressure state value is within the range of the assigned specific pressure state value The pneumatic system generates a normal state signal indicating a normal state and forwards it to the display means; and if the pressure state value falls outside the range of the assigned specific pressure state value, A system generating and transmitting an abnormal state signal indicating an abnormal state to the display means; and for displaying each operating state of the pneumatic system on the screen as a whole of the marine pneumatic system And displaying with the signal.

  In addition, the computer-readable recording medium that records the program for realizing the ship's pneumatic self-diagnosis method of the present invention is equipped with a sensor in the ship's main engine's pneumatic system, and a user's operation command is sent to each device. In a self-diagnosis system for monitoring a ship main engine's pneumatic system by transferring it as an electrical signal or a direct air pressure signal, a sensor is attached to at least one of the devices of the pneumatic system, A first function for measuring at least one or more pressure fluctuations and transmitting the pressure state value; a second function for determining at least one flow data for determining the pressure state value as a state signal; Flow data is within the range of the specified pressure state value assigned to the device-specific library A third function for checking whether or not it is included; and when the pressure state value is included within a range of the assigned specific pressure state value, the normal system generates a normal state signal indicating a normal state And a fourth function for transferring to the display means; and when the pressure state value is out of a range of the assigned specific pressure state value, the abnormal system generates a non-normal state signal for displaying an abnormal state. A fifth function to transfer to the means; a sixth function to display using the status signal to display each operating state of the pneumatic system as a whole on the screen; and a screen without actual engine operation And a seventh function for simulating the entire system simply by inputting data on the screen and expressing the dynamic graphics on the screen. To.

  The pneumatic self-diagnosis system according to the present invention attaches a sensor to the pneumatic system, and monitors the operational state of the pneumatic system in real time during the start, forward / reverse, stop and emergency stop of the ship main engine by the monitoring system. As a result, it is possible to quickly diagnose whether or not a fault occurs in the pneumatic system, to grasp the specific fault location, and to solve the fault in a short time. There is an advantage that it is possible to prevent large-scale marine accidents resulting from the grounding and collision of ships due to delays in failure measures.

  In addition, the user can grasp the current state by displaying the operation flow due to pressure state and change on the screen so that the user can visually check the various devices and system state of the pneumatic system in real time. There is an advantage that an effective response method can sometimes be presented.

  In addition, the system user can learn the operating principle of the pneumatic system using the simulation mode, and the exact failure cause can be analyzed by reproducing the operating state values stored in the database in the next simulation. Moreover, there is an advantage that preventive maintenance and failure / maintenance history for each component device can be utilized by managing the failure and maintenance history for each component device of the pneumatic system.

  Hereinafter, a pneumatic self-diagnosis system according to the present invention, a diagnosis method using the same, and a simulation method will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a block diagram of a pneumatic system of a marine main engine according to one embodiment of the present invention, FIG. 2 is a module block diagram of a pneumatic self-diagnosis system of a boat according to the present invention, and FIG. FIG. 4 is a configuration diagram of a screen displayed on the screen by the display module according to the present invention, and FIG. 5 is a simulation diagram of the present invention. FIG. 6 is an operation flowchart according to the simulation step mode of the present invention, and FIG. 7 is an operation flowchart according to the abnormal mode of the simulation according to the present invention.

  As shown in FIG. 1, a pneumatic system 10 for a marine main engine according to the present invention includes a starting air system 11, a governor 12, a fuel system 13, an electric / electrical system. Electronic / Electronic system 14, Mechanical connection system 15, Various pneumatic equipment 16, Complex air piping 17, Safety system 18, etc. It is combined with the system and controls the operation of the main engine such as start, forward / reverse, stop and emergency stop by controlling the air flow of the system.

  In particular, a control method for a pneumatic system of a main engine for a ship in a large ship is to transfer a user's operation command to the pneumatic system as an electrical signal or a direct air pressure signal to each device. The pneumatic system is a system that finally applies a user operation command to the main engine.

  Thus, the pneumatic self-diagnosis system for a ship according to the present invention is roughly divided into a monitoring mode and a simulation mode.

  The monitoring mode is a mode for monitoring the state of the pneumatic system when the control device is actually operated on the ship to start / stop the main engine, and is actually a pneumatic system of the main engine of the ship. Depending on the status, the normal flow is displayed when normal, and the alarm, fault location, and countermeasure are displayed together with the abnormal flow when abnormal.

  The simulation mode is a mode having a function of operating a control device on the screen and confirming a flow of the result on the screen, and is roughly classified into a normal mode, a step mode, and an abnormal mode.

  The normal mode is a mode for displaying on the screen a normal operation flow when the user operates the control device on the screen.

  The step mode is a mode in which the normal operation flow is moved one step at a time starting from the valve and the confirmation is received from the user, and then the normal operation flow operation is performed. In the normal mode, the display is performed while sequentially operating each control device. To do.

  In the abnormal mode, a desired valve state is set to a failure state in advance before operating the control device, and then the flow is performed. This mode is used to grasp the impact.

  That is, the abnormal mode is a mode for confirming which operation flow is affected when a device fails, which valve is important for the flow, etc., depending on the position and control state of each control device. Understand the failure status and the impact of the failure status.

  The failure status of the pneumatic system is checked by various valves of control devices used in the bridge, engine room, engine side, and wing bridge. Among these valves, a specific valve is a specific control device. Used only for position.

  In this way, by setting and operating various virtual failure states based on various abnormal operation reasons, valves that are used only at specific control device positions can be affected and the countermeasures by failure location etc. It can be grasped in advance.

  Referring to FIG. 2, the marine pneumatic self-diagnosis system according to the present invention includes an input module 20, a sensor group 30, a PLC 40, a communication module 50, a control module 60, a simulation module 65, a display module 70, a database unit 80, The management module 90 is used.

  The input module 20 includes devices to be checked in the marine pneumatic system, sensors, and various operation keys for outputting flow data stored in the database unit 80.

  The object operated by the input module 20 indicates a control device based on a control position for actually operating the main engine of the ship in the monitoring mode, and indicates a control device displayed on the computer screen in the simulation mode.

  According to the operation method, the control device is operated in the monitoring mode, and the control device on the screen is operated using a mouse, a keyboard, and a touch screen in the simulation mode.

  On the other hand, the input module 20 may include an input key for a user to input information on each device of the pneumatic system of the ship.

  The sensor group 30 is a sensor that is attached to each device of the pneumatic system and senses a pressure change state. The sensor group 30 receives a user operation signal from the input module 20 and controls the operation flow according to the operation mode. The state value of each device is transferred along the line, and the state value is sent to the PLC 40.

  The PLC 40 is for controlling each device of the pneumatic system. The PLC 40 stores therein an instruction word that can perform special functions such as logic, operation, coefficient, and sequential processing, and executes an instruction for executing a control algorithm (Algorithm). The pressure state value of the sensor group 30 is received based on the above and transferred to the communication module 50.

  The communication module 50 sequentially receives the pressure state values of each device and sensor on the pneumatic system through communication according to the communication setting with the PLC 40, filters a plurality of signal data, and generates flow data (FLOW DATA). ) And transferred to the control module 60.

  When the communication module 50 receives a monitoring mode start command and a signal input reception request command from the control module 60 described later, the communication module 50 is activated according to the communication setting and receives a signal from the PLC 40.

  The control module 60 controls the flow of various data including the flow data received from the communication module 50. The control module 60 is located at the center of each module and integrally controls the entire system drive. Main control module.

  The control module 60 receives flow data (FLOW DATA) from the communication module 50 and stores it in the database unit 80, and analyzes the flow data to control the progress of the pneumatic flow.

  The control module 60 receives and analyzes the operation signal of the sensor group 30 from the communication module 50, controls the progress of the pneumatic flow, and further transfers the operation command of each device to the display module 70. A completion report of the performance of the corresponding device is received from 70, and then a pneumatic flow according to the flow information is performed.

  Further, upon receiving a user input from the input module 20, connection with the management module 90, execution of operation, and the like are performed.

  In addition, the control module 60 compares the pressure state value of the transferred flow data with normal operation reference information according to the flow state of each library allocated to the database unit 80 to diagnose failure, The result is transferred to the display module 70.

  At this time, if the pressure state value measured by the comparison result is included in the normal operation range of the library assigned to each device, at least one pressure state value indicating the normal state is determined. A normal operating state signal is generated and transferred to the display module 70. On the other hand, when the pressure state value is out of the normal operation range of the library assigned to each device, at least one pressure state value indicating an abnormal state is determined and an abnormal operation state signal is determined. And transfer it to the display module 70.

  The display module 70 displays instructions necessary for measuring flow data in letters, numbers, and graphs, receives the flow data from the control module 60, and displays the operating state of each device on the screen. This module is a module that represents a pneumatic system of a ship on a monitor screen 72 that is graphically represented by dynamic graphics.

  That is, the display module 70 receives the operation command of the component device from the control module 60, controls the operation state of the device, and simultaneously transfers the final operation command to the component library, and receives the operation command received from the control module 60. Based on the instruction, it is determined whether the current state of the library and the instruction state are the same, the operation instruction is transferred or passed, and the end state value after the operation instruction is executed or passed is returned to the control module 60. .

  At this time, the end state value can be understood from the flow data being individually displayed on the monitor screen or entirely displayed with the measurement time.

  Moreover, a preferable monitor screen monitors the state of each device of the pneumatic system, displays the measured numerical value on the screen, converts the monitored measured numerical value into a dynamic motion, and displays it on the screen.

  On the other hand, when the display module 70 receives the abnormal operation state signal from the control module 60, the display module 70 sounds an alarm with a speaker to notify the failure portion, and further receives a countermeasure from the database unit 80 and outputs it to the screen. .

  The database unit 80 includes a device information table 82, a pneumatic flow table 84, a device failure table 86, and the like, and stores various information of the pneumatic self-diagnosis system.

  Here, the device information table 82 is a table that creates a quantity and a list for each type of device, analyzes / organizes operation characteristics, and stores information such as a state by operation.

  The pneumatic flow table 84 is a table for storing information such as the operation flow of each device by the user's operation, the influence of the system by the device operation, the initial state of the device, and the state of the device by the pneumatic flow.

  The equipment failure table 86 analyzes the failure elements of the equipment, analyzes the influence of the failure on the pneumatic flow, arranges inspection points at the time of failure, arrangements of measures at the time of failure, arrangement of accident cases, and accidents. This table stores information such as cause analysis.

  The simulation module 65 displays a pressure display and an operation flow based on the change on the screen so that the user can visually check the state of various devices and systems in real time without operation of the actual engine of the ship. This is a module that can present an effective countermeasure when a failure occurs.

  Specifically, the simulation module 65 includes a simulation normal mode (Simulation Normal Mode) S200 in which the entire flow is normally performed automatically, and a simulation step mode (Simulation Normal Step Mode) S400 that is performed step by step by a user operation. And a simulation abnormal mode S600 performed by virtual failure setting. Therefore, the user can learn the operation principle of the pneumatic system by the simulation function based on the selection, and can analyze the cause of the virtual fault setting in advance and respond quickly when the fault actually occurs.

  The management module 90 is a module for storing and managing data such as preventive repair plans and result inputs, failure and repair history, actual photographs, and technical information for each device of the pneumatic system.

  The failure history of each device in such a pneumatic system, the inquiry and input of maintenance history information and characteristics, and the like are realized by the cooperation of the database unit 80 and the management module 90.

  Next, in the pneumatic self-diagnosis system for a ship according to the present invention having the above-described configuration, a sensor is attached to the pneumatic system of the ship main engine, and each user's operation command is an electrical signal or a direct pneumatic signal. Describes how to transfer to equipment and monitor the main system of the ship's main engine.

  Referring to FIG. 3, a pressure measurement sensor is attached to at least one of the pneumatic system devices, and at least one pressure fluctuation is measured to obtain a state value. When data is filtered and the state value is determined as at least one flow data for determining a state signal and transferred to the control module 60, the control module 60 transmits the received state value to the database unit 80. Compared with the normal operation reference information according to the flow state stored in the database unit 80, the normality is diagnosed and the state value according to the result is analyzed.

  Here, when the state value is included in the range of the specific pressure state value assigned to each device, the control module 60 generates a normal state signal for displaying a normal state and displays the normal state. When the state value is out of the range of the specific pressure state value assigned to each device, the pneumatic system generates an abnormal state signal indicating an abnormal state and displays the state value. Transfer to module 70.

  At this time, the display module 70 dynamically implements the state change process according to the characteristics of each device on the screen diagrammatically representing the pneumatic system according to the state signal received from the control module 60, and an abnormal state occurs. Presents fault location instructions and countermeasures.

  On the other hand, as shown in FIG. 4, the screen displayed by the display module 70 is not only a numerical representation of the operation state value, but also a dynamic graphic of the air flow and the operation of the components. It is expressed by

  Here, preferably, the display method further includes a speaker that sounds an alarm.

  Hereinafter, a simulation method in the pneumatic self-diagnosis system for a ship according to the present invention will be described with reference to FIGS.

  The simulation module 65 can virtually simulate normal operation, step-by-step operation, or abnormal operation by a program set in the same manner as the pneumatic system of the ship, based on the selection of the input module 20 by the user. It is a module.

  The simulation module 65 specifically includes a simulation normal mode (Simulation Normal Mode) S200 in which the entire flow is normally performed automatically, and a simulation step mode (Simulation Normal Step Mode) S400 that is performed step by step by a user operation. And a simulation abnormal mode (S600) performed by virtual failure setting.

  Referring to FIG. 5, the operation flow of the simulation normal mode S200 is as follows.

  In the simulation normal mode S200, first, data is read from a device that receives user input, and then the user input module 20, the control module 60, the display module 70, the database unit 80, the component library 89, and the monitor screen 72 are displayed. Display sequentially.

  When the user turns on the power by the input module 20 to initialize the system, the simulation module 65 senses this, and the initial value defined in the information table 82 of each device of the marine pneumatic system of the database unit 80 is detected. The device library is initialized to the values, and the normal state values of all the devices of the marine pneumatic system of the ship are stored in the component library 89 and are displayed on the monitor screen 72 by dynamic graphics.

  Referring to FIG. 6, the simulation normal step mode S400 allows a user to display a result of an operation state step by step while operating a desired device. The operation flow is as follows. It is.

  When the user turns on the power by the input module 20 to initialize the system, the simulation module 65 detects this, and sets the device library to the initial value defined in the device information table 82 of the database unit 80. Initialize and display on the screen.

  Here, the output on all the screens by the device state value is to display the attribute values stored in the device information table 82 on the screen.

  The simulation module 65 takes out the library 89 of the component elements of the device whose operation is set by the input module 20 from the database unit 80 and transfers it to the display module 70 together with the operation command.

  The display module 70 analyzes the received operation command. If the application device is a valve (valve) and Act / DeAct, the display module 70 enters a step state before issuing an operation command for the component library.

  When entering the step state, application of the operation command of the library of all the components is suspended in the display module 70, and the entire pneumatic flow currently in progress is also stopped, so that the user confirms the continued progress. become.

  When the user's continued progress is confirmed, the suspended operation command starts to be applied, and the suspended pneumatic flow is performed again.

  At this time, the display module 70 applies the analyzed operation instruction to the component library 89 as the attribute definition value of each device stored in the database unit 80, and again applies it to the component library 89. The device and pressure state values are returned to the simulation module 65. The simulation module 65 repeats the above process again with the received device and pressure state values, and all the pneumatic flows by the operation of the start position are performed to the end. The operation according to the stage is finished.

  Referring to FIG. 7, the operation flow of the simulation abnormal mode S600 is as follows.

  Originally, the simulation module 65 can only operate normally. Therefore, in order to generate an abnormal state, it is necessary to select a desired abnormal device by the input module 20 and set the abnormal state.

  When the abnormal state is set in the input module 20, the simulation module 65 takes out the device failure table 86 set in the input module 20 from the database unit 80 and transfers it to the display module 70 together with the operation command.

  The display module 70 analyzes the received operation command, and enters the abnormal state when the information in the device failure table 86 and the information on the failure state set by the input module 20 are the same. .

  When entering the abnormal state, the device set as the abnormally operating device is in a state where no more operation commands can be applied, the operation command is applied to the other devices, and the pneumatic flow is subsequently performed.

  The device that has entered the abnormal state opens the device failure table 86 to provide the user with various information about the abnormal state, and the user was put on hold when the abnormal state was canceled after confirming the information. The operation command is applied and the pneumatic flow is performed again.

  At this time, the display module 70 applies the analyzed operation command to the database unit 80 as the attribute justice value of each device stored in the database unit 80, and again applies the device code and pressure state value applied to the database unit 80. Is returned to the simulation module 65, and the simulation module 65 repeats the above process again with the received device and pressure state values, and performs all the pneumatic flows by manipulating the start position to the end.

  On the other hand, in the system for monitoring a pneumatic system of a ship main engine according to the present invention, a sensor is attached to the pneumatic system of the ship main engine, and an operation signal of a user is transmitted to each device as an electrical signal or direct air pressure. The computer-readable recording medium that records the program for monitoring the pneumatic system of the ship's main engine and that is transferred as a signal of the computer has the following functions.

  That is, a first function of attaching a pressure measurement sensor to at least one of the pneumatic system devices, measuring at least one pressure fluctuation, and sending the pressure state value; and the pressure state value A second function for determining at least one or more flow data to be determined as a status signal; and a third function for checking whether or not the flow data is included in a range of specific pressure status values assigned to the device-specific library And a fourth function for generating a normal state signal for displaying a normal state and transferring the normal state signal to the display means when the pressure state value falls within the range of the assigned specific pressure state value. The pneumatic system displays an abnormal state when the pressure state value is out of the range of the assigned specific pressure state value. A fifth function for generating an abnormal state signal and transferring it to the display means; and a sixth function for displaying the operating state of the pneumatic system on the screen as a whole of the ship by using the state signal. And a seventh function for simulating the entire system just by inputting it on the screen without actually operating the engine and expressing it on the screen as dynamic graphics.

  The preferred embodiments of the present invention have been described in detail above. However, those skilled in the art to which the present invention belongs will not depart from the spirit and scope of the present invention as defined in the appended claims. The present invention can be variously modified or changed within the scope.

It is a block diagram of the pneumatic system of the main engine for ships which concerns on one Example of this invention. It is a module block diagram of the pneumatic self-diagnosis system of the ship which concerns on this invention. 3 is an operation flowchart according to a monitoring progress mode of a pneumatic self-diagnosis system for a ship according to the present invention. It is a block diagram of the screen displayed on a screen by the display module which concerns on this invention. It is an operation | movement flowchart by the simulation normal mode in this invention. It is an operation | movement flowchart by the simulation step mode in this invention. It is an operation | movement flowchart by the simulation abnormal mode in this invention.

Explanation of symbols

10 Pneumatic system 20 Input module 30 Sensor group 40 Programmable logic controller (PLT)
50 Communication Module 60 Control Module 65 Simulation Module 70 Display Module 80 Database Unit 90 Management Module

Claims (7)

A sensor group attached to the device to be monitored and generating and sending a pressure state value indicating a change in pressure;
A programmable logic controller in charge of signal relay for transferring the pressure state value sent from the sensor group to the communication module;
A communication module that sequentially receives the pressure state values from the programmable logic controller, filters a plurality of signal data, decodes the pressure state values into flow data, and transfers them to a control module;
The flow data transferred from the communication module is stored in a database, and the flow data is compared with reference information on normal operation for each device according to the flow state stored in the database to diagnose normality. A control module that generates instructions as status signals and transfers them to the display module;
A display module that displays the operating state of each device in a dynamic graphic on the monitor screen as a whole of the marine pneumatic system of the ship according to the comparison result received from the control module;
It is configured to include a,
The display module is
A marine pneumatic self-diagnosis system characterized in that when a status signal received from the control module is in an abnormal operation state, an indication of a failure location and a countermeasure are displayed on a screen .   2. The pneumatic self-diagnosis system for a ship according to claim 1, further comprising a simulation module for simulating the entire system only by inputting on the screen without actually operating the engine and expressing the dynamic system on the screen. . A sensor group attached to the device to be monitored and generating and sending a pressure state value indicating a change in pressure;
A programmable logic controller in charge of signal relay for transferring the pressure state value sent from the sensor group to the communication module;
A communication module that sequentially receives the pressure state values from the programmable logic controller, filters a plurality of signal data, decodes the pressure state values into flow data, and transfers them to a control module;
The flow data transferred from the communication module is stored in a database, and the flow data is compared with reference information on normal operation for each device according to the flow state stored in the database to diagnose normality. A control module that generates instructions as status signals and transfers them to the display module;
A display module that displays the operating state of each device in a dynamic graphic on the monitor screen as a whole of the marine pneumatic system of the ship according to the comparison result received from the control module;
In a self-diagnosis method for monitoring a pneumatic self-diagnosis system for a ship comprising :
a) A sensor is attached to at least one device among the devices of the pneumatic system, and the sensor group, the programmable logic controller, and the communication module measure at least one pressure fluctuation to measure the pressure. Sending a status value (S100);
b) the communication module and the control module determine at least one flow data for determining the pressure state value as a state signal (S110);
c) The control module checks whether the flow data is included in the range of the specific pressure state value assigned to the device-specific library (S120);
d) when the control module is within the range of the assigned specific pressure state value, the pneumatic system generates a normal state signal indicating the normal state and forwards it to the display means Step (S130);
e) When the control module is out of the range of the assigned specific pressure state value, the pneumatic system generates an abnormal state signal indicating an abnormal state and forwards it to the display means. Stage (S140);
f) the display module displaying each operating state of the pneumatic system using the state signal for displaying the operating state of the pneumatic system as a whole on the screen (S150);
g) when the status signal received from the control module is in an abnormal operating state, the display module displays an indication of a failure location and a countermeasure on the screen;
A pneumatic self-diagnosis method for a ship, comprising: When the user turns on the power by the input module to initialize the system, the simulation module senses it and sets the device's value to the initial value defined in the information table of each device of the ship's pneumatic system in the database section. initialize the library, according to claim 3 which stores the normal state values of all equipment of the ship pneumatic system library components, characterized in that it represented a dynamic graphics on the monitor screen The pneumatic self-diagnosis method for ships described in 1 . After setting the pneumatic flow step section to be measured by the user using the input module, the simulation module takes out the library of the components of the virtual faulty equipment in the flow step section set by the input module from the database and stores it in the display module. When it is transferred together with the operation command, the application of the operation command for all devices is suspended in the display module, and the entire pneumatic flow that is currently in progress is also stopped. 5. The method of claim 3 , wherein a suspended operation flow starts to be applied again, and the suspended pneumatic flow is performed again and sequentially displayed. 6. After setting the abnormal state in the input module, the simulation module receives the library of the components of the virtual faulty device set in the input module from the database unit and transfers it to the display module together with the operation command. If the failure instruction is analyzed and the failure set is the same as that set, the device enters the abnormal state before applying the operation command of the component library. 6. The ship pneumatic simulation method according to any one of claims 3 to 5, wherein the device failure table is opened and various information about an abnormal state is displayed on the screen to the user. A computer-readable recording medium storing a program for operating the pneumatic self-diagnosis system for a ship according to claim 1 or 2,
A self-diagnosis system for monitoring the main engine's pneumatic system by attaching sensors to the main engine's pneumatic system and transferring the user's operation commands to each device as an electrical signal or direct pneumatic signal In
A first function of attaching a sensor to at least one of the pneumatic system devices, measuring at least one pressure fluctuation, and sending the pressure state value;
The second function and for determining the at least one flow data to determine as the state signal the pressure state value;
A third function for examining whether or not the flow data is included in a range of a specific pressure state value assigned to the device-specific library;
A fourth function for generating a normal state signal for displaying a normal state and transferring the normal state signal to the display means when the pressure state value falls within the range of the assigned specific pressure state value;
A fifth function for the pneumatic system to generate and transfer to the display means an abnormal state signal indicating an abnormal state when the pressure state value is out of the range of the assigned specific pressure state value;
A sixth function for displaying using the status signal to display each operating state of the pneumatic system as a whole on the screen;
A seventh function for simulating the entire system just by inputting on the screen without actually operating the engine, and expressing dynamic graphics on the screen;
A computer-readable recording medium on which a program for realizing the sensor group, the programmable logic controller, the communication module, the control module, and the display module is recorded.

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