CN110085005B

CN110085005B - Ship generator monitoring method, device and system and storage medium

Info

Publication number: CN110085005B
Application number: CN201910189003.7A
Authority: CN
Inventors: 贺少华; 曹湘波; 段永强; 刘建; 张占一; 刘国生; 董恒瑞; 原培召; 毛晓翀; 刘静
Original assignee: CHINA ORIENT INSTITUTE OF NOISE & VIBRATION; CCCC Guangzhou Dredging Co Ltd.
Current assignee: CHINA ORIENT INSTITUTE OF NOISE & VIBRATION; CCCC Guangzhou Dredging Co Ltd.
Priority date: 2019-03-13
Filing date: 2019-03-13
Publication date: 2023-03-24
Anticipated expiration: 2039-03-13
Also published as: CN110085005A

Abstract

The application relates to a ship generator monitoring method, a ship generator monitoring device, a ship generator monitoring system and a storage medium. The method comprises the following steps: acquiring state information of a measuring point on a generator, which is sent by acquisition equipment; the acquisition equipment is used for receiving source information of the measuring points acquired by the sensors, and the state information of each measuring point is obtained by the source information acquired by at least one sensor; determining a data processing mode corresponding to each measuring point; performing data processing on the state information of each measuring point by adopting the data processing mode to obtain a state representation value of the generator; comparing the state representation value of the generator with a preset alarm threshold value, and obtaining a monitoring result of the generator according to the comparison result; by adopting the method, the influence of external environment and subjective factors can be avoided, and the monitoring result of the generator is accurate; meanwhile, the working state of the generator is monitored in real time, the generator is convenient to maintain in time, and the efficiency is high.

Description

Ship generator monitoring method, device and system and storage medium

Technical Field

The application relates to the technical field of ships, in particular to a ship generator monitoring method, device and system and a storage medium.

Background

With the continuous development of the ship industry, the structure of the ship tends to be complicated gradually, the working conditions tend to be diversified, and the working environment is also severe; when the generator fails, the construction operation is often seriously influenced, and further great economic loss is caused; therefore, improving the fault monitoring level of the generator is a prerequisite for ensuring safe and reliable operation of the ship.

At present, the monitoring of the generator of the ship mainly comprises that a worker regularly checks the working state of the generator, determines whether the possibility of failure exists, and records or alarms if the possibility exists. Obviously, the monitoring method is easily influenced by external environment and subjective factors, so that the monitoring result is inaccurate, the monitoring real-time performance is poor, and the efficiency is low.

Disclosure of Invention

In view of the above, it is necessary to provide a ship generator monitoring method, apparatus, system and storage medium for addressing the above technical problems.

In one aspect, an embodiment of the present invention provides a method for monitoring a marine generator, where the method includes:

acquiring state information of a measuring point on a generator, which is sent by acquisition equipment; the acquisition equipment is used for receiving source information of the measuring points acquired by the sensors, and the state information of each measuring point is obtained by the source information acquired by at least one sensor;

determining a data processing mode corresponding to each measuring point;

performing data processing on the state information of each measuring point by adopting the data processing mode to obtain a state representation value of the generator;

and comparing the state characteristic value of the generator with a preset alarm threshold value, and obtaining a monitoring result of the generator according to a comparison result.

In one embodiment, the measuring point comprises at least one of a generator driving end measuring point, a generator non-driving end measuring point and a generator ground measuring point.

In one embodiment, the source information of the measuring point comprises one or more of vibration information, sound information, light information, temperature information and pressure information.

In one embodiment, if the source information of the measuring point is vibration information, the sensor corresponding to the measuring point comprises an acceleration sensor; the acceleration sensor is used for acquiring vibration acceleration information of the measuring point in at least one direction of an x-axis direction, a y-axis direction and a z-axis direction; the x-axis direction, the y-axis direction and the z-axis direction are perpendicular to each other.

In one embodiment, the status information of the measuring point on the generator sent by the acquisition device carries identification information of the measuring point;

the step of determining the data processing mode corresponding to each measuring point comprises the following steps:

acquiring identification information of the measuring point carried in the state information;

inquiring a mapping table of the identification information and the data processing mode to obtain the data processing mode corresponding to the identification information;

and determining a data processing mode corresponding to each measuring point according to the data processing mode corresponding to the identification information.

In one embodiment, the step of performing data processing on the state information of each measuring point by using the data processing mode to obtain a state representation value of the generator includes:

performing data processing on the state information of each measuring point by adopting the data processing mode to obtain a state representation value of each measuring point;

and obtaining the state representation value of the generator according to the state representation value of each measuring point.

In one embodiment, the step of comparing the state characteristic value of the generator with a preset alarm threshold value and obtaining a monitoring result of the generator according to the comparison result includes:

if the state representation value of the generator is larger than or equal to a preset alarm threshold value, obtaining a monitoring result of the generator as an abnormal operation state;

and if the state representation value of the generator is smaller than the preset alarm threshold value, obtaining the monitoring result of the generator as a normal running state.

In one embodiment, the preset alarm threshold value comprises a first threshold value, a second threshold value and a third threshold value;

if the state representation value of the generator is larger than or equal to a preset alarm threshold value, the step of obtaining the monitoring result of the generator as an abnormal operation state comprises the following steps:

if the state representation value of the generator is larger than or equal to the first threshold value and smaller than the second threshold value, obtaining a monitoring result of the generator as a primary operation abnormal state;

if the state characterization value of the generator is greater than or equal to the second threshold value and smaller than the third threshold value, obtaining a monitoring result of the generator as a secondary operation abnormal state;

if the state representation value of the generator is larger than or equal to the third threshold value, obtaining a monitoring result of the generator as a three-level abnormal operation state;

if the state characterization value of the generator is smaller than the preset alarm threshold value, the step of obtaining the monitoring result of the generator as a normal operation state comprises the following steps:

and if the state characterization value of the generator is smaller than the first threshold value, obtaining a monitoring result of the generator as a normal operation state.

In one embodiment, after the step of obtaining that the monitoring result of the generator is a first-stage abnormal operation state if the state characterizing value of the generator is greater than or equal to the first threshold and smaller than the second threshold, the method further includes:

sending a primary alarm prompt signal to a monitoring center of the ship according to the monitoring result of the primary operation abnormal state so as to trigger the monitoring center to output indicating light of a first color;

after the step of obtaining that the monitoring result of the generator is the secondary abnormal operation state if the state characterization value of the generator is greater than or equal to the second threshold and smaller than the third threshold, the method further includes:

sending a secondary alarm prompt signal to a monitoring center of the ship according to the monitoring result of the secondary operation abnormal state so as to trigger the monitoring center to output indicating light of a second color;

after the step of obtaining that the monitoring result of the generator is in the three-level abnormal operation state if the state characterization value of the generator is greater than or equal to the third threshold, the method further includes:

sending a third-level alarm prompt signal to a monitoring center of the ship according to the monitoring result of the third-level abnormal operation state so as to trigger the monitoring center to output indicating light of a third color;

after the step of obtaining that the monitoring result of the generator is in a normal operation state if the state characterization value of the generator is smaller than the first threshold, the method further includes:

and sending a safety prompt signal to a monitoring center of the ship according to the monitoring result of the normal operation state so as to trigger the monitoring center to output indicating light of a fourth color.

In one embodiment, the generator is provided with an alarm device;

after the step of obtaining the monitoring result of the generator according to the comparison result, the method further includes:

and if the state representation value of the generator is greater than or equal to the preset alarm threshold value, triggering an alarm device corresponding to the generator to output an alarm signal.

In another aspect, an embodiment of the present invention provides a marine generator monitoring device, where the device includes:

the acquisition module is used for acquiring the state information of the measuring point on the generator, which is sent by the acquisition equipment; the acquisition equipment is used for receiving source information of the measuring points acquired by the sensors, and the state information of each measuring point is obtained by the source information acquired by at least one sensor;

the determining module is used for determining a data processing mode corresponding to each measuring point;

the processing module is used for carrying out data processing on the state information of each measuring point by adopting the data processing mode to obtain a state representation value of the generator;

and the monitoring module is used for comparing the state representation value of the generator with a preset alarm threshold value and obtaining the monitoring result of the generator according to the comparison result.

In another aspect, an embodiment of the present invention provides a monitoring system for a marine generator, where the system includes a sensor, an acquisition device, and a data server;

the sensor is used for acquiring source information of measuring points on the generator and sending the source information to the acquisition equipment, and the source information of each measuring point is acquired by at least one sensor;

the acquisition equipment is used for obtaining the state information of each measuring point of the generator according to the source information of the measuring point and sending the state information of each measuring point to the data server;

the data server is used for acquiring the state information of each measuring point; determining a data processing mode corresponding to each measuring point; performing data processing on the state information of each measuring point by adopting the data processing mode to obtain a state representation value of the generator; and comparing the state characteristic value of the generator with a preset alarm threshold value, and obtaining a monitoring result of the generator according to a comparison result.

In yet another aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the steps of a marine generator monitoring method.

One of the above technical solutions has the following advantages or beneficial effects: the data server acquires the state information of each measuring point of the generator sent by the acquisition equipment and identifies a data processing mode corresponding to the measuring point, so that the state information of each measuring point is subjected to data processing to obtain a state representation value of the generator; comparing the state representation value of the generator with a preset value, and sending a monitoring result to the generator, a ship where the generator is located, a monitoring center corresponding to the generator or other monitoring platforms according to the comparison result, so as to complete monitoring of the generator; according to the scheme, the influence of external environment and subjective factors is avoided through a data processing process based on accurate sensor signals and intelligence, and a monitoring result is accurate; in addition, the real-time monitoring of the working state of the generator is realized, and the working state is fed back to the monitoring center at the first time when the generator breaks down, so that the generator is convenient to maintain in time, and the efficiency is high.

Drawings

FIG. 1 is a diagram of an exemplary embodiment of a method for monitoring a marine generator;

FIG. 2 is a diagram of an application environment of a monitoring method for a marine generator according to another embodiment;

FIG. 3 is a diagram of an application environment of a monitoring method for a marine generator according to another embodiment;

FIG. 4 is a schematic flow diagram of a marine generator monitoring method in one embodiment;

fig. 5 is a schematic structural diagram of a ship generator monitoring device in one embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The ship generator monitoring method provided by the application can be applied to the application environment shown in fig. 1 and can also be applied to the application environment shown in fig. 2.

The application environment shown in fig. 1 includes: the monitoring system comprises a generator to be monitored, a plurality of sensors, acquisition equipment, a data server and a monitoring center.

The generator to be monitored can be a single generator on one ship, a generator cluster composed of multiple generators on one ship, or a generator cluster composed of multiple generators on multiple ships (in the figure, one generator on one ship is taken as an example); the ship can be an engineering ship such as a dredger and the like, and can also be other types of ships; the dredger can be a trailing suction dredger (such as a 'dredging sea 6' wheel) or a cutter suction dredger (such as a 'Huaanlong' wheel) and the like; the specific type of the generator is not limited herein.

Each generator can be provided with a plurality of sensors, each generator can correspond to one or a plurality of acquisition devices (one acquisition device is taken as an example in the figure), the acquisition devices are used for collecting source information acquired by all the sensors on the generator, processing the source information into state information and sending the state information to the data server, the data server carries out a series of processing on the state information, and then sends a monitoring result to the monitoring center through a network or a cable, and finally monitoring of the generators on the ship is achieved.

Each generator may have a plurality of locations, i.e. stations, to be monitored; the positions and the number of the measuring points can be selected and set according to actual conditions, for example, the measuring points can be positioned at one or more of the top, the bottom, the inner side, the outer side, the driving end, the non-driving end (the other end opposite to the end where the driving shaft is positioned), the ground feet and the like of the generator, and can be selected according to actual conditions, as shown in fig. 3. Correspondingly, the number, the type and the position of the sensors fixedly arranged on the generator can be set according to actual conditions.

In addition, the acquisition equipment and the data server can be arranged on the ship body where the generator is arranged, and can also be independently arranged outside the ship; the acquisition equipment and the sensor, the acquisition equipment and the data server, and the data server and the monitoring center can realize signal transmission in a network or cable mode and the like.

In one embodiment, the monitoring center can be arranged at a position far away from the generator to be monitored so as to realize real remote monitoring and control; specifically, for example, the monitoring center can not only realize remote monitoring of the generator running state data, but also remotely set parameters of the acquisition device, or perform online analysis and downloading of test data, and the like.

For example, referring to fig. 1, the generator to be monitored has 4 measuring points to be monitored, that is, 4 sensors (respectively disposed at the ground feet, in the box body, outside the box body, and on the output shaft) are required, wherein the sensors disposed at the ground feet and on the output shaft are used for detecting the acceleration of the rotating shaft, and the sensors disposed in the box body and outside the box body are used for detecting the temperature of the box body; the acquisition equipment receives information acquired by the 4 sensors for a period of time respectively, processes the acquired information into data which can be analyzed by the data server and then transmits the data to the data server, the data server further processes the data, judges whether the generator is about to break down or has broken down according to the processed result, if so, sends a signal to the monitoring center, and the monitoring center can inform personnel on the ship to maintain and overhaul the generator after receiving the signal.

The application environment shown in fig. 2 includes a generator to be monitored, a plurality of sensors, an acquisition device, a data server, and an alarm device.

The environmental features similar to the application environment shown in fig. 1 are not repeated herein, and the different environmental features include:

the alarm devices in the figure are arranged on the generators, or can be arranged in a special maintenance room, and the alarm devices in the maintenance room are in one-to-one correspondence with the generators on the ship through marking the alarm devices; the alarm device can give an alarm by means of light emitting, sound, vibration, wired or wireless signal sending and the like, and is selected according to actual conditions. The data server and the alarm device can realize signal transmission through a network or a cable and the like.

For example, after determining that the generator is about to fail or has failed, the data server triggers an alarm device on the generator to be started, if the alarm device is a red light and a buzzer, the red light is turned on, the buzzer sounds, and a worker perceives the situation and then maintains and overhauls the generator corresponding to the alarm device.

It should be noted that, in other embodiments, according to actual situations, the application environment shown in fig. 1 and the application environment shown in fig. 2 may be integrated, that is, the connection manner between the monitoring center and the data server in fig. 1 and the monitoring center is integrated into fig. 2, or the connection manner between the alarm device and the data server in fig. 2 is integrated into fig. 1, so that the monitoring center and the ship staff monitor the generator at the same time, and the real-time monitoring and control effect of the generator is better.

In one embodiment, as shown in fig. 4, a ship generator monitoring method is provided, which is described by taking the application of the method to the ship generator monitoring system in fig. 1 as an example, and includes the following steps:

s202, acquiring state information of a measuring point on the generator, which is sent by acquisition equipment; the acquisition equipment is used for receiving source information of the measuring points acquired by the sensors, and the state information of each measuring point is obtained by the source information acquired by at least one sensor.

Specifically, the generator to be monitored may have one or more measuring points, one measuring point may be provided with one or more sensors, and one collecting device may be used to receive source information collected by the sensors at the one or more measuring points.

The plurality of sensors can be one or more of sensors such as a vibration sensor, a sound pressure sensor, a photoelectric sensor, a temperature sensor and a pressure sensor, wherein the vibration sensor can comprise an acceleration sensor, an eddy current sensor, a magnetoelectric rotating speed sensor and the like and is selected according to actual conditions; correspondingly, the source information may be one or more of vibration information (vibration acceleration information, vibration displacement information, vibration speed information), sound information, light information, temperature information, pressure information, and the like; in addition, through the acquisition equipment, the sampling mode of the sensor can be set, such as continuous 24 hours, a timing clock every day, equal interval time or signal overrun trigger acquisition source information.

The mode of obtaining the state information of the measuring point from the source information can be set according to the type of the source information; specifically, for example, when the source information acquired by the sensor is vibration information, the state information of the measurement point sent to the data server by the acquisition device may be a time domain waveform and/or a frequency domain spectrogram and the like in a set time period obtained from the source information, and may be selected and set according to actual conditions; when the source information acquired by the sensor is temperature information, the state information of the measuring point sent to the data server by the acquisition device may be a temperature sampling data set and/or a temperature change trend graph within a set time period obtained from the source information, which is not limited herein.

It should be noted that, as a further optimization, the acquisition device may specifically include an acquisition instrument (such as a distributed data acquisition instrument) and a switch (such as an ethernet switch), and the acquisition device needs to have a suitable sampling frequency, a large storage space, and a fast data calculation processing capability; the plurality of collecting instruments can realize cascade synchronization, and each collecting instrument can transmit data with the data server of the switch and the centralized control room through the network cable so as to ensure the reliability of data transmission.

The data server can store the acquired original state information of each measuring point so as to carry out in-depth analysis and diagnosis on the monitored equipment. There are various storage methods for the original data, including: 24 hours continuously, time-clocked, time-spaced, over-time storage, etc.

And S204, determining a data processing mode corresponding to each measuring point.

The determination mode of the data processing mode corresponding to the measuring point can be various, for example, the data server can determine through the data type of the state information sent by the acquisition equipment, the setting position of the measuring point, the sensor setting position or other identification information.

The data processing mode comprises index analysis in a time domain or a frequency domain according to the time domain waveform and/or the frequency domain spectrogram; specifically, the index analysis may be to find a peak-to-peak value, an effective value, a maximum value, a minimum value, an average value, a mean variance value, and the like of the vibration; meanwhile, advanced signal analysis can be performed according to the time domain waveform and/or the frequency domain spectrogram, and the advanced signal analysis comprises the following steps: spectrum analysis, axis trajectory analysis, autocorrelation analysis, cross-correlation analysis, cepstrum analysis, envelope spectrum analysis, and the like. Of course, if the state information transmitted by the acquisition device is a trend graph of temperature, sound pressure, etc., the data processing mode may correspond to the peak value, effective value, maximum value, minimum value, average value, mean variance value, etc. of a plurality of sampling point data, and the advanced signal analysis mode may be performed, which is not limited herein. It should be noted that each station may correspond to one or more data processing modes.

For example, as shown in fig. 1, a generator to be monitored has a measuring point to be monitored, which requires 4 sensors, the 4 sensors are respectively arranged at a foot margin (sensor No. 1), in a box body (sensor No. 2), outside the box body (sensor No. 3) and on an output shaft (sensor No. 4) of the engine, wherein the sensor No. 1 and the sensor No. 4 are used for detecting the vibration acceleration of the generator, and the sensor No. 2 and the sensor No. 3 are used for detecting the temperature of the box body; the acquisition equipment respectively receives source information acquired by 4 sensors within a set time period, then time domain oscillograms at detection positions of the sensor No. 1 and the sensor No. 4 are obtained according to the source information of the sensor No. 1 and the sensor No. 4, temperature change oscillograms at the detection positions of the sensor No. 2 and the sensor No. 3 are obtained according to the source information of the sensor No. 2 and the sensor No. 3, and the 2 time domain oscillograms and the 2 temperature change oscillograms are transmitted to the data server;

at this time, when the data server identifies that the acquisition equipment sends a time domain oscillogram, if the time domain oscillogram is preset to correspond to the data processing mode of averaging, determining the data processing mode of averaging the state information of the measuring point;

when the data server identifies that the acquisition equipment sends a temperature change oscillogram, if the temperature change oscillogram is preset to correspond to a data processing mode for solving the maximum value, determining the data processing mode for solving the maximum value of the state information of the measuring point;

finally, the data server determines the data processing mode of the measuring point as an average value and a maximum value.

In addition, the data processing mode can also include reprocessing the numerical value obtained by the data processing mode, namely the data processing mode of the measuring point to be monitored can include a multi-stage processing mode; specifically, the data server may further process the obtained average value and the obtained maximum value, for example, obtain a weighted value of the two values, and the weighting coefficient may be set according to actual conditions; at this time, the data server determines that the data processing mode of the measuring point includes a primary processing mode and a secondary processing mode, the primary processing mode is to calculate an average value and a maximum value, and the secondary processing mode is to perform data weighting processing on a result obtained by the primary processing mode.

And S206, performing data processing on the state information of each measuring point by adopting a data processing mode to obtain a state representation value of the generator.

Namely, after the data server determines the data processing mode of the measuring point, the data server completes the data processing of the state information of the measuring point by adopting the data processing mode to obtain the state representation value of the generator.

Correspondingly, the state characterization value can be used for characterizing the working condition in the set time period at the detection position of each sensor on the generator and can also be used for characterizing the working condition in the set time period at the detection positions of all the sensors on the generator; even this can be used to characterize the operation of all sensors on a plurality of associated generators for a set period of time at the detection location.

The data server can process the state information sent by the plurality of acquisition devices respectively and can also process the state information simultaneously; the state information of a plurality of measuring points sent by the same acquisition equipment can be processed respectively or simultaneously; the state information of different types of the same side point sent by the same acquisition equipment can be processed respectively, and can also be processed simultaneously.

Specifically, the above example can be continued to be used, if the data server determines that the data processing mode of the measuring point is to obtain an average value and a maximum value, the average value obtaining processing is performed on the 2 time domain oscillograms, and the obtained two state characteristic values are acceleration average values; the maximum value of the 2 temperature change oscillograms is solved, and the two obtained state characterization values are the maximum values of the temperature; the state-characterizing value may then be used to characterize the operation of the generator over a set period of time at each sensor detection location. If the data server determines that the data processing mode of the measuring point comprises the above-mentioned primary processing mode and secondary processing mode, the state characterization value at this time can be used for characterizing the working condition of the generator within a set time period at the detection positions of all the sensors, that is, the working condition of the whole generator within the set time period.

And S208, comparing the state representation value of the generator with a preset alarm threshold value, and obtaining a monitoring result of the generator according to the comparison result.

The monitoring result can be one or more of signals such as output visual signals, auditory signals and tactile signals for triggering the generator monitoring center, and can also be a monitoring result list, indication information and the like mapped on a monitoring personnel working platform interface.

After the data server obtains the state representation value of the generator, the state representation value of the generator is compared with a preset alarm threshold value; and when the state representation value of the ship exceeds a preset alarm threshold value, automatic alarm can be given.

In the embodiment of the present application, the execution subject may be a data server device, a cloud server, or a controller, and may be selected and changed according to actual situations.

In the monitoring method of the marine generator in the embodiment, the data server obtains the state information of each measuring point of the generator sent by the acquisition equipment and identifies the data processing mode corresponding to the measuring point, so that the state information of each measuring point is subjected to data processing to obtain the state representation value of the generator; comparing the state representation value of the generator with a preset value, and sending a monitoring result to the generator, a ship where the generator is located, a monitoring center corresponding to the generator or other monitoring platforms according to the comparison result, so as to complete monitoring of the generator; according to the scheme, the influence of external environment and subjective factors is avoided through accurate source information detected based on the sensor and an intelligent data processing process, and the monitoring result is accurate; in addition, the real-time monitoring of the working state of the generator is realized, and the working state is fed back to the monitoring center at the first time when the generator breaks down, so that the generator is convenient to maintain in time, the efficiency is high, the alarm efficiency of the generator is effectively improved, maintenance personnel can find fault symptoms as soon as possible, the planned maintenance is reduced to the maximum extent, the redundant inspection, the regular planned maintenance and the excessive maintenance are eliminated, and the occurrence of sudden failures is avoided.

In some embodiments, the measuring point comprises at least one of a generator driving end measuring point, a generator non-driving end measuring point and a generator ground measuring point; the source information at the measuring point comprises one or more of vibration information, sound information, light information, temperature information and pressure information; in addition, if the source information of the measuring points is vibration information, the sensors corresponding to the measuring points comprise acceleration sensors; the acceleration sensor is used for acquiring vibration acceleration information of the measuring point in at least one direction of the x-axis direction, the y-axis direction and the z-axis direction; the x-axis direction, the y-axis direction and the z-axis direction are perpendicular to each other.

It should be noted that although the x-axis direction, the y-axis direction, and the z-axis direction are common three-dimensional coordinate systems, when the three-dimensional coordinate systems are used for monitoring the generator, the directions of the three-dimensional coordinate systems can be set according to actual situations; for example, the x-y plane may be parallel, perpendicular to the horizontal, or at an angle to the horizontal.

In some embodiments, the status information of the measuring point on the generator sent by the acquisition equipment carries identification information of the measuring point; s204 specifically comprises: acquiring identification information of a measuring point carried in the state information; inquiring a mapping table of the identification information and the data processing mode to obtain the data processing mode corresponding to the identification information; and determining the data processing mode corresponding to each measuring point according to the data processing mode corresponding to the identification information.

The identification information carried by the state information can be one or more combinations of preset numbers of the measuring points, setting positions of the measuring points, port parameters, specification sizes and the like, and can be specifically selected according to actual conditions as long as each measuring point can be distinguished.

In one embodiment, the identification information carried by the state information is a number preset by the measuring point; specifically, for example, a plurality of measuring points are respectively distinguished by Arabic numerals, namely No. 1, no. 2, no. 3 \8230; the mapping table of the identification information and the data processing mode can be set according to actual conditions, for example, the maximum value is obtained corresponding to the measuring point No. 1, the average value and the mean square error are obtained corresponding to the measuring point No. 2, the primary processing mode and the secondary processing mode are obtained corresponding to the measuring point No. 3, the 8230, the corresponding relation between the identification information and the data processing mode can be conveniently and rapidly identified by the data server by storing the corresponding relation into the form of the mapping table, so that the data identification capability of the data server is optimized, and the real-time processing and analysis of the state information are realized.

In some embodiments, S206 specifically includes: performing data processing on the state information of each measuring point by adopting a data processing mode to obtain a state representation value of each measuring point; and obtaining the state representation value of the generator according to the state representation value of each measuring point.

The state representation value of the generator can be determined according to the state representation values of one or more generator measuring points; the manner of derivation can be various, such as data transformation, weighting, averaging, by plotting a fitted curve, and the like.

The state characteristic value of the generator is obtained through the state characteristic value of each measuring point, and compared with the state characteristic value of a single measuring point, the working state of the whole generator is determined, so that the all-dimensional monitoring of the generator is facilitated, the data are more reasonable, the monitoring is more accurate and reliable, and the practicability is high.

In some embodiments, S208 specifically includes: if the state representation value of the generator is larger than or equal to a preset alarm threshold value, obtaining a monitoring result of the generator as an abnormal operation state; and if the state characteristic value of the generator is smaller than the preset alarm threshold value, obtaining the monitoring result of the generator as a normal operation state.

For example, the obtained monitoring result of the generator is sent to the monitoring center, and the monitoring center can output an alarm signal and also can output a safety signal by receiving the monitoring result, so that on one hand, the monitoring center can judge the working state of the generator according to the safety prompt information and the alarm prompt information; on the other hand, if the data server does not send the safety prompt message, the monitoring center cannot judge whether the hardware alarm equipment fails or the generator is in a non-failure state when the monitoring center does not receive the alarm prompt message, so that the method avoids the problems and improves the comprehensiveness and accuracy of monitoring.

In some embodiments, the preset alarm threshold comprises a first threshold, a second threshold, and a third threshold; the step of obtaining the monitoring result of the generator as the abnormal operation state if the state characterization value of the generator is greater than or equal to the preset alarm threshold value includes:

if the state representation value of the generator is greater than or equal to the first threshold value and smaller than the second threshold value, obtaining a monitoring result of the generator as a first-stage operation abnormal state;

if the state representation value of the generator is greater than or equal to the second threshold value and smaller than the third threshold value, obtaining a monitoring result of the generator as a secondary operation abnormal state;

if the state representation value of the generator is larger than or equal to the third threshold value, the monitoring result of the generator is obtained to be a three-stage operation abnormal state;

the step of obtaining the monitoring result of the generator as the normal operation state if the state representation value of the generator is smaller than the preset alarm threshold value includes:

and if the state representation value of the generator is smaller than the first threshold value, obtaining the monitoring result of the generator as the normal operation state.

Further, after the step of obtaining that the monitoring result of the generator is the first-stage abnormal operation state if the state representation value of the generator is greater than or equal to the first threshold and smaller than the second threshold, the method further includes:

sending a primary alarm prompt signal to a monitoring center of the ship according to a monitoring result of the primary operation abnormal state so as to trigger the monitoring center to output indicating light of a first color;

after the step of obtaining that the monitoring result of the generator is the secondary operation abnormal state if the state characterization value of the generator is greater than or equal to the second threshold and smaller than the third threshold, the method further includes:

sending a secondary alarm prompt signal to a monitoring center of the ship according to a monitoring result of the secondary operation abnormal state so as to trigger the monitoring center to output indicating light of a second color;

after the step of obtaining the monitoring result of the generator as the abnormal state of the three-stage operation if the state characterizing value of the generator is greater than or equal to the third threshold value, the method further includes:

sending a third-level alarm prompt signal to a monitoring center of the ship according to a monitoring result of the third-level abnormal operation state so as to trigger the monitoring center to output indicating light of a third color;

after the step of obtaining that the monitoring result of the generator is in the normal operation state if the state characteristic value of the generator is smaller than the first threshold, the method further includes:

That is, the monitoring center can adopt the four-level alarm mode, and this four-level alarm can remind the staff through the pilot light of different colours, for example: green (safety), yellow (early warning), orange (warning) and red (dangerous). When the green light is on, the generator works normally without any operation; when the yellow light is turned on, nearby workers are informed to maintain the generator; when the orange lamp is turned on, a special manager is informed to maintain the generator; when the red light is on, the generator is controlled to stop working and a manager is informed to check the reason. Therefore, the alarm prompt information is classified, so that the scheduling of workers is facilitated, and the pertinence and the efficiency of maintenance work are improved.

It should be noted that the first threshold, the second threshold, and the third threshold are set according to actual situations; the safety prompt message and the alarm prompt message are not limited to trigger the monitoring center to output indicating light with different colors, and can also trigger the monitoring center to output sounds with different loudness and types, and the like, and are not limited herein.

In some embodiments, after an alarm is raised, a record of the alarm may also be saved for later querying. The alarm records can comprise the occurrence position (which can be the code number of a measuring point of the sensor), the starting time, the ending time, the rotating speed, main symptoms, fault reasons, maintenance countermeasures, diagnostic personnel, diagnostic time and verification results of each alarm, various time domain indexes, frequency domain indexes and the like.

In some embodiments, the data server may also establish a mapping table of the state characteristic value of the generator and the current operating state (start-stop, power generation, etc.) of the generator according to the state characteristic value of the generator, so as to send the operating state of the generator to the monitoring center together, so as to facilitate monitoring of the generator.

In some embodiments, the generator is provided with an alarm device, as shown in fig. 2; after S208, the method further includes: and if the state representation value of the generator is greater than or equal to the preset alarm threshold value, triggering an alarm device corresponding to the generator to output an alarm signal.

After obtaining the state representation value of the generator, the data server compares the state representation value of the generator with a preset alarm threshold value; when the state representation value of the generator exceeds a preset alarm threshold value, an alarm device corresponding to the generator can be automatically triggered to output an alarm signal.

It should be noted that the generator may have at least one state characterizing value, and correspondingly, the generator has at least one preset alarm threshold, and each state characterizing value has a preset alarm threshold correspondingly compared with the state characterizing value; the alarm threshold values of the generators can be respectively set; when the state representation value of the generator does not exceed the preset alarm threshold value, an alarm device corresponding to the generator can be automatically triggered to output a safety signal; thus, each generator can also adopt a four-level alarm mode, and the four-level alarm can prompt staff on the ship by outputting indicating light with different colors through an alarm device, such as: green (safety), yellow (early warning), orange (warning) and red (dangerous). When the green light is turned on, the corresponding generator is normal and no operation is needed; when the yellow light is turned on, nearby workers are informed to maintain the corresponding position of the corresponding generator; when the orange lamp is turned on, a special manager is informed to maintain the corresponding position of the corresponding generator; and when the red light is turned on, controlling the corresponding generator to stop working and informing a manager to check the reason. Therefore, the alarm prompt information is classified, so that the scheduling of workers is facilitated, and the pertinence and the efficiency of maintenance work are improved.

In the generator monitoring method of the embodiment, the data server obtains the state information of the measuring point of the generator sent by the collecting device and identifies the data processing mode corresponding to the measuring point, so that the state information of the collecting device is subjected to data processing to obtain a state representation value of the generator; comparing the state representation value of the generator with a preset value, and triggering an alarm device corresponding to the generator according to the comparison result, thereby completing the monitoring of the generator; according to the scheme, the influence of external environment and subjective factors is avoided through the source information detected based on the sensor and a strict data processing process, and the monitoring result is accurate; in addition, the real-time monitoring of the working state of the generator is realized, the working state is fed back to workers on the ship at the first time when the generator breaks down, the workers and the detection positions of the corresponding sensors of the corresponding measuring points on the generator are overhauled and debugged, the timely maintenance of the generator is facilitated, and the efficiency is high.

It should be understood that for the foregoing method embodiments, although the steps in the flowcharts are shown in order indicated by the arrows, the steps are not necessarily performed in order indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a portion of the steps in the flow charts of the method embodiments may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternating with other steps or at least a portion of the sub-steps or stages of other steps.

Based on the same idea as the ship generator monitoring method in the above embodiment, a ship generator monitoring device is also provided herein.

In one embodiment, as shown in fig. 5, there is provided a marine generator monitoring device comprising: an acquisition module 410, a determination module 420, a processing module 430, and a monitoring module 440, wherein:

the acquisition module 410 is used for acquiring state information of a measuring point on the generator, which is sent by the acquisition equipment; the acquisition equipment is used for receiving source information of the measuring points acquired by the sensors, and the state information of each measuring point is obtained by the source information acquired by at least one sensor;

a determining module 420, configured to determine a data processing mode corresponding to each measurement point;

the processing module 430 is configured to perform data processing on the state information of each measurement point by using a data processing mode to obtain a state representation value of the generator;

and the monitoring module 440 is configured to compare the state characteristic value of the generator with a preset alarm threshold value, and obtain a monitoring result of the generator according to the comparison result.

In some embodiments, the measurement points include at least one of a generator drive end measurement point, a generator non-drive end measurement point, and a generator ground measurement point.

In some embodiments, the source information for the stations includes one or more of vibration information, sound information, light information, temperature information, pressure information.

In some embodiments, if the source information of the measuring points is vibration information, the sensors corresponding to the measuring points comprise acceleration sensors; the acceleration sensor is used for acquiring vibration acceleration information of the measuring point in at least one direction of the x-axis direction, the y-axis direction and the z-axis direction; the x-axis direction, the y-axis direction and the z-axis direction are perpendicular to each other.

In some embodiments, the status information of the measuring point on the generator sent by the acquisition equipment carries identification information of the measuring point; the determining module 420 is specifically configured to obtain identification information of the measuring point carried in the state information; inquiring a mapping table of the identification information and the data processing mode to obtain the data processing mode corresponding to the identification information; and determining the data processing mode corresponding to each measuring point according to the data processing mode corresponding to the identification information.

In some embodiments, the processing module 430 is specifically configured to perform data processing on the state information of each measurement point by using a data processing mode to obtain a state representation value of each measurement point; and obtaining the state representation value of the generator according to the state representation value of each measuring point.

In some embodiments, the monitoring module 440 is specifically configured to obtain a monitoring result of the generator as an abnormal operation state if the state characterization value of the generator is greater than or equal to a preset alarm threshold value; and if the state characteristic value of the generator is smaller than the preset alarm threshold value, obtaining the monitoring result of the generator as a normal operation state.

In some embodiments, the preset alarm threshold comprises a first threshold, a second threshold, and a third threshold; the monitoring module 440 is specifically configured to obtain a monitoring result of the generator as a first-stage abnormal operation state if the state representation value of the generator is greater than or equal to the first threshold and smaller than the second threshold; if the state representation value of the generator is greater than or equal to the second threshold value and smaller than the third threshold value, obtaining a monitoring result of the generator as a secondary operation abnormal state; if the state representation value of the generator is larger than or equal to the third threshold value, the monitoring result of the generator is obtained to be a three-stage operation abnormal state; and if the state representation value of the generator is smaller than the first threshold value, obtaining the monitoring result of the generator as the normal operation state.

In some embodiments, the marine generator monitoring device further comprises: the primary alarm module is used for sending a primary alarm prompt signal to a monitoring center of the ship according to a monitoring result of the primary operation abnormal state so as to trigger the monitoring center to output indicating light of a first color; the secondary alarm module is used for sending a secondary alarm prompt signal to a monitoring center of the ship according to a monitoring result of the secondary operation abnormal state so as to trigger the monitoring center to output indicating light of a second color; the three-level alarm module is used for sending a three-level alarm prompt signal to a monitoring center of the ship according to a monitoring result of the three-level abnormal operation state so as to trigger the monitoring center to output indicating light of a third color; and the safety prompting module is used for sending a safety prompting signal to the monitoring center of the ship according to the monitoring result of the normal operation state so as to trigger the monitoring center to output indicating light of a fourth color.

In some embodiments, the generator is provided with an alarm device; marine generator monitoring devices still includes: and the triggering module is used for triggering an alarm device corresponding to the generator to output an alarm signal if the state representation value of the generator is greater than or equal to a preset alarm threshold value.

For specific limitations of the ship generator monitoring device, reference may be made to the above limitations of the ship generator monitoring method, which are not described herein again. All or part of each module in the ship generator monitoring device can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.

In addition, in the embodiment of the ship generator monitoring device illustrated above, the logical division of the program modules is only an example, and in practical applications, the above functions may be distributed by different program modules according to needs, for example, due to the configuration requirements of corresponding hardware or the convenience of implementation of software, that is, the internal structure of the ship generator monitoring device is divided into different program modules to complete all or part of the above described functions.

In one embodiment, a marine generator monitoring system is provided, which may be configured as shown in fig. 1 to 1

As shown in fig. 3. The ship generator monitoring system comprises a sensor, acquisition equipment and a data server; the sensor is used for collecting source information of measuring points on the generator and sending the source information to the collecting equipment, and the source information of each measuring point is collected by at least one sensor; the acquisition equipment is used for obtaining the state information of each measuring point of the generator according to the source information of the measuring point and sending the state information of each measuring point to the data server; the data server is used for acquiring the state information of each measuring point; determining a data processing mode corresponding to each measuring point; performing data processing on the state information of each measuring point by adopting a data processing mode to obtain a state representation value of the generator; and comparing the state representation value of the generator with a preset alarm threshold value, and obtaining a monitoring result of the generator according to the comparison result.

In some embodiments, the system further comprises a monitoring center; the data server is also used for sending corresponding prompt information to the monitoring center according to the monitoring result of the generator; the monitoring center is used for receiving the prompt information and triggering the monitoring center to output a corresponding prompt signal.

In some embodiments, the collection device is connected to the data server via a network; the data server is connected with the monitoring center through a network.

It will be appreciated by those skilled in the art that the configurations shown in figures 1 to 3 are only part of the configurations relevant to the present application and do not constitute a limitation of the marine generator monitoring system to which the present application is applied, and a particular marine generator monitoring system may include more or fewer components than shown in the figures, or some components in combination, or have a different arrangement of components.

In one embodiment, there is provided a marine vessel generator monitoring system comprising a data server including a memory and a processor, the memory having stored therein a computer program, the processor implementing the following steps when executing the computer program:

In one embodiment, the source information of the survey point includes one or more of vibration information, sound information, light information, temperature information, pressure information.

In one embodiment, if the source information of the measuring points is vibration information, the sensors corresponding to the measuring points comprise acceleration sensors; the acceleration sensor is used for acquiring vibration acceleration information of the measuring point in at least one direction of the x-axis direction, the y-axis direction and the z-axis direction; the x-axis direction, the y-axis direction and the z-axis direction are perpendicular to each other.

In one embodiment, the status information of the measuring point on the generator sent by the acquisition equipment carries identification information of the measuring point; the processor, when executing the computer program, further performs the steps of:

acquiring identification information of a measuring point carried in the state information;

and determining the data processing mode corresponding to each measuring point according to the data processing mode corresponding to the identification information.

In one embodiment, the processor, when executing the computer program, further performs the steps of:

performing data processing on the state information of each measuring point by adopting a data processing mode to obtain a state representation value of each measuring point;

In one embodiment, the processor when executing the computer program further performs the steps of:

and if the state representation value of the generator is smaller than the preset alarm threshold value, obtaining the monitoring result of the generator as the normal running state.

In one embodiment, the preset alarm threshold includes a first threshold, a second threshold, and a third threshold; the processor, when executing the computer program, further performs the steps of:

if the state representation value of the generator is larger than or equal to the first threshold value and smaller than the second threshold value, the monitoring result of the generator is obtained and is a primary operation abnormal state;

In one embodiment, the generator is provided with an alarm device; the processor, when executing the computer program, further performs the steps of:

In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of:

determining a data processing mode corresponding to each measuring point;

performing data processing on the state information of each measuring point by adopting a data processing mode to obtain a state representation value of the generator;

and comparing the state representation value of the generator with a preset alarm threshold value, and obtaining a monitoring result of the generator according to the comparison result.

In one embodiment, if the source information of the measuring point is vibration information, the sensor corresponding to the measuring point comprises an acceleration sensor; the acceleration sensor is used for acquiring vibration acceleration information of the measuring point in at least one direction of the x-axis direction, the y-axis direction and the z-axis direction; the x-axis direction, the y-axis direction and the z-axis direction are perpendicular to each other.

In one embodiment, the status information of the measuring point on the generator sent by the acquisition equipment carries identification information of the measuring point; the computer program when executed by the processor further realizes the steps of:

In one embodiment, the computer program when executed by the processor further performs the steps of:

and if the state characteristic value of the generator is smaller than the preset alarm threshold value, obtaining the monitoring result of the generator as a normal operation state.

In one embodiment, the preset alarm threshold includes a first threshold, a second threshold, and a third threshold; the computer program when executed by the processor further realizes the steps of:

In one embodiment, the generator is provided with an alarm device; the computer program when executed by the processor further realizes the steps of:

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), rambus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

The terms "comprises" and "comprising," as well as any variations thereof, of the embodiments herein are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or (module) elements is not limited to only those steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Reference herein to "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

References to "first \ second" herein are merely to distinguish between similar objects and do not denote a particular ordering with respect to the objects, it being understood that "first \ second" may, where permissible, be interchanged with a particular order or sequence. It should be understood that "first \ second" distinct objects may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced in sequences other than those illustrated or described herein.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A marine generator monitoring method, the method comprising:

acquiring state information of a measuring point on a generator, which is sent by acquisition equipment; the acquisition equipment is used for receiving source information of the measuring points acquired by the sensors, and the state information of each measuring point is obtained by the source information acquired by at least one sensor; each sensor collects source information of at least one measuring point; the measuring points represent the positions of the generators to be monitored; the mode that the state information of the measuring points is obtained by the source information is set according to the type of the source information; the state information of the measuring points on the generator sent by the acquisition equipment carries identification information of the measuring points;

acquiring identification information of the measuring point carried in the state information; inquiring a mapping table of the identification information and the data processing mode to obtain the data processing mode corresponding to the identification information; determining a data processing mode corresponding to each measuring point according to the data processing mode corresponding to the identification information; each measuring point corresponds to at least one data processing mode; the data processing mode comprises index analysis in a time domain or a frequency domain according to a time domain waveform and/or a frequency domain spectrogram; the data processing mode comprises a multi-level processing mode;

performing data processing on the state information of each measuring point by adopting the data processing mode to obtain a state representation value of each measuring point; obtaining a state representation value of the generator according to the state representation value of each measuring point;

2. The method according to claim 1, wherein the step of comparing the state characterization value of the generator with a preset alarm threshold value and obtaining the monitoring result of the generator according to the comparison result comprises:

3. The method of claim 2, wherein the preset alarm threshold comprises a first threshold, a second threshold, and a third threshold;

if the state characterization value of the generator is larger than or equal to the third threshold value, obtaining a monitoring result of the generator as a three-level abnormal operation state;

4. The method according to claim 3, wherein after the step of obtaining the monitoring result of the generator as a primary abnormal operation state if the state characteristic value of the generator is greater than or equal to the first threshold value and less than the second threshold value, the method further comprises:

sending a primary alarm prompt signal to a monitoring center of a ship according to the monitoring result of the primary operation abnormal state so as to trigger the monitoring center to output indicating light of a first color;

after the step of obtaining that the monitoring result of the generator is the secondary abnormal operation state if the state characterizing value of the generator is greater than or equal to the second threshold and smaller than the third threshold, the method further includes:

after the step of obtaining that the monitoring result of the generator is in the normal operation state if the state characterizing value of the generator is smaller than the first threshold value, the method further includes:

5. The method according to any one of claims 1 to 4, wherein an alarm device is provided on the generator;

6. A marine generator monitoring device, the device comprising:

the acquisition module is used for acquiring the state information of the measuring point on the generator, which is sent by the acquisition equipment; the acquisition equipment is used for receiving source information of the measuring points acquired by the sensors, and the state information of each measuring point is obtained by the source information acquired by at least one sensor; each sensor collects source information of at least one measuring point; the measuring points represent the positions to be monitored of the generator; the mode that the state information of the measuring points is obtained by the source information is set according to the type of the source information; the state information of the measuring points on the generator sent by the acquisition equipment carries identification information of the measuring points;

the determining module is used for acquiring the identification information of the measuring point carried in the state information; inquiring a mapping table of the identification information and the data processing mode to obtain the data processing mode corresponding to the identification information; determining a data processing mode corresponding to each measuring point according to the data processing mode corresponding to the identification information; each measuring point corresponds to at least one data processing mode; the data processing mode comprises index analysis in a time domain or a frequency domain according to a time domain waveform and/or a frequency domain spectrogram; the data processing mode comprises a multi-level processing mode;

the processing module is used for carrying out data processing on the state information of each measuring point by adopting the data processing mode to obtain a state representation value of each measuring point; obtaining a state representation value of the generator according to the state representation value of each measuring point;

7. The apparatus of claim 6, wherein the monitoring module comprises:

the state unit is used for obtaining a monitoring result of the generator as an abnormal operation state if the state representation value of the generator is greater than or equal to a preset alarm threshold value; and if the state characteristic value of the generator is smaller than the preset alarm threshold value, obtaining the monitoring result of the generator as a normal operation state.

8. The apparatus of claim 7, wherein the preset alarm threshold comprises a first threshold, a second threshold, and a third threshold;

the state unit is further used for obtaining a monitoring result of the generator as a primary operation abnormal state if the state representation value of the generator is greater than or equal to the first threshold value and smaller than the second threshold value; if the state characterization value of the generator is greater than or equal to the second threshold value and smaller than the third threshold value, obtaining a monitoring result of the generator as a secondary operation abnormal state; and if the state characterization value of the generator is greater than or equal to the third threshold value, obtaining a monitoring result of the generator as a three-stage operation abnormal state.

9. A ship generator monitoring system is characterized by comprising a sensor, acquisition equipment and a data server;

the sensor is used for acquiring source information of measuring points on the generator and sending the source information to the acquisition equipment, and the source information of each measuring point is acquired by at least one sensor; each sensor collects source information of at least one measuring point; the measuring points represent the positions to be monitored of the generator; the mode that the state information of the measuring points is obtained by the source information is set according to the type of the source information;

the acquisition equipment is used for obtaining the state information of each measuring point of the generator according to the source information of the measuring point and sending the state information of each measuring point to the data server; the state information of the measuring points on the generator sent by the acquisition equipment carries identification information of the measuring points;

the data server is used for acquiring the state information of each measuring point; acquiring identification information of the measuring point carried in the state information; inquiring a mapping table of the identification information and the data processing mode to obtain the data processing mode corresponding to the identification information; determining a data processing mode corresponding to each measuring point according to the data processing mode corresponding to the identification information; each measuring point corresponds to at least one data processing mode; performing data processing on the state information of each measuring point by adopting the data processing mode to obtain a state representation value of each measuring point; obtaining a state representation value of the generator according to the state representation value of each measuring point; and comparing the state characteristic value of the generator with a preset alarm threshold value, and obtaining a monitoring result of the generator according to a comparison result.

10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 5.