CN104239727A - Rotating machinery condition monitoring system unit working status trend display method - Google Patents

Abstract

The invention relates to a rotating machinery condition monitoring system unit working status trend display method, which comprises the following steps: obtaining status data and event data of a unit in a period of time; according to the obtained status data and event data, generating a running trend diagram, and displaying the running trend diagram of the unit on a screen; in the running trend diagram, displaying the running status of the unit in the period of time by using colored tapes of different colors, and displaying specific events occurring in the unit by using different tags on the colored tapes. According to the method provided by the invention, the abnormal status and the events can be highlighted by a selective mode, and the abnormality of the unit can be quickly found at the large time scale.

Description

Display method of unit working status trend in rotating machinery status monitoring system

technical field

The invention relates to the field of rotating machinery operation monitoring, in particular to quickly display the abnormal state and events of equipment operation when browsing the historical operation state of the unit in the online state monitoring system of the rotating machinery.

Background technique

At present, in the field of online condition monitoring system for rotating machinery, browsing the historical operation status and events of the unit is one of the most commonly used methods for industrial field technicians to understand the unit. The general trend diagram of the unit is shown in Figure 1. Through this trend diagram, you can roughly understand the unit Changes in a certain parameter during operation.

However, in the current display method of the online condition monitoring system for rotating machinery on the trend of unit operating parameters, it is only possible to roughly understand the operating trend of the unit (as shown in Figure 1), especially when browsing data for a long period of time (such as the data of the past month ), due to the size and resolution of the display screen, it can only display the data of several thousand time points at most, and it is impossible to know all the abnormal states and events that occurred in the unit during this period. Since there are many monitoring points for the operating parameters of a unit, sometimes reaching hundreds, it is very time-consuming to browse the trends of so many measuring points in a short period of time.

Contents of the invention

In view of the above, the present invention proposes a display method for the working state trend of the unit in the state monitoring system of rotating machinery, which highlights the abnormal state and the events that occur in a selectable way, and finds the abnormality of the unit quickly and on a large time scale.

The display method of the unit working state trend of the rotating machinery state monitoring system includes:

The data acquisition step is to acquire the status data and event data of a unit within a period of time;

The graphic creation step is to generate an operation trend diagram of the unit according to the acquired state data and event data, and display the operation trend diagram of the unit on the display screen; and

State trend display step 1, in the operation trend graph of the unit, use different color ribbons to display the operation status of the unit in this period of time.

Further, the method also includes: state trend display step 2, on the different color ribbons, use event labels to display specific events that occur at a certain moment of the unit within the period, wherein the event labels One or more events can be selected to be displayed.

Compared with the prior art, the method for displaying the working state trend of the rotating machinery state monitoring system unit in the present invention can highlight the abnormal state and the events that occurred in a selectable way, and quickly find the abnormality of the unit in a large time scale. In order to overcome the limitation of the display function of the unit trend graph in the prior art.

Description of drawings

Fig. 1 is the schematic diagram of unit operation trend diagram in the prior art;

Fig. 2 is the application environment diagram of the unit working state trend display system of the present invention;

Fig. 3 is the functional block diagram of the working state trend display system of the unit of the present invention;

Fig. 4 is a flow chart of the display method of the unit working state trend of the rotating machinery state monitoring system of the present invention;

Fig. 5 is a schematic diagram of the unit operation trend diagram of the present invention.

Detailed ways

In order to facilitate the understanding of the present invention, the relevant terms used in this embodiment will be briefly described below.

Normal: The monitoring parameters do not reach the alarm threshold, and the equipment can run for a long time;

Forecast: The monitoring parameter exceeds the forecast threshold but not the main report threshold. The equipment is in an unhealthy state, but it can still run for a short time;

Main report: The monitoring parameter exceeds the main report threshold, and the equipment is in a dangerous state, which needs to be stopped as soon as possible. This state indicates that the equipment is more dangerous than the forecast state;

Alarm: The combination of equipment occurrence forecast and main report is called occurrence alarm.

As shown in FIG. 2 , it is an application environment diagram of the unit working state trend display system of the present invention. The unit working state trend display system 26 is applied to the client 2, which may have a display screen 20 and an input device 22, for example, the client 2 may be a computer. The display screen 20 may be an LCD (Liquid Crystal Display) display screen, and the input device 22 may be an input device such as a keyboard or a mouse. The client 2 also includes a memory 24 and a processor 28 connected through data lines or signal lines. It should be noted that FIG. 2 is only a schematic illustration of the software structure and hardware structure of the client 2, and the client 2 also includes other necessary electronic components and system software, which will not be repeated here.

The working state trend display system 26 of the unit is stored in the memory 24 of the client 2, and is used to highlight the abnormal state of the unit and the events that have occurred in a selectable manner. For the specific method flow, refer to the description of FIGS. 3 to 5 . The client 2 communicates with the central server 4 through the network, and obtains the operating data of the unit (such as the status data of the unit) from the central server 4 . It should be noted that, in other embodiments, the unit working state trend display system 26 can also be set in the central server 4, and the client 2 obtains the unit operation trend diagram from the central server 4, and displays the unit operation trend diagram displayed on the display screen 20.

In this embodiment, the unit working state trend display system 26 can provide one or more modules, and the one or more modules are stored in the memory 24 of the client 2 and configured to be controlled by one or more processors (one processor 28 in this embodiment) to complete the present invention. For example, referring to FIG. 3 , the unit working state trend display system 26 includes a data acquisition module 260 , a graphic creation module 262 , and a state trend display module 264 . The module referred to in the present invention is a computer program segment that completes a specific function, which is more suitable than a program to describe the execution process of software in a computer. For the specific functions of each module, refer to the description in Figures 4 to 5.

As shown in FIG. 4 , it is a flow chart of the display method for the unit working status trend of the rotating machinery status monitoring system of the present invention.

In step S101, the data acquisition module 260 receives a pre-selected unit and a period of time.

In this embodiment, the unit may be selected from the rotating machinery condition monitoring system, for example, the selected unit is a synthesis gas compressor unit. The time period can be a specific time period (such as the previous week, the previous month, the previous year, etc.), or a user-defined time period, such as the start time selected by the user (such as 2014-06-10) A period of time determined by the end time (2014-09-15). In other implementation manners, the set and time period can also be read from a third-party system (for example, obtained through parameter transmission), without manual selection by the user.

In step S102, the data acquisition module 260 acquires the status data and event data of the unit within the period from the central server 4 (or other storage devices).

In this embodiment, the state data includes, but is not limited to, data generated in the following states:

In the first state, the unit is running normally;

In the second state, the unit is shut down;

The third state is the start-up process of the unit;

The fourth state is the shutdown process of the unit;

In the fifth state, the unit is in the pre-alarm state;

The sixth state, the unit is in the main alarm state;

The seventh state, the unknown state.

In this embodiment, the event data includes, but is not limited to, data generated by the following events:

The first type of event, the unit changes from other states to the main alarm state;

The second type of event, the unit changes from other states to the pre-alarm state;

The third type of event, the unit changes from other states to the normal operation state;

The fourth type of event, the unit changes from other states to the start state;

The fifth type of event, the unit changes from other states to the shutdown state;

The sixth type of event is that one or several working parameters of the unit have changed beyond the threshold, wherein the threshold can be set, and the working parameters include, but are not limited to, the total vibration, each frequency component of vibration, the rotational speed , temperature, pressure, flow, etc., for example, the sixth type of event includes, but is not limited to, 1-octave deviation, 2-octave deviation, 0.5-octave deviation, optional deviation, residual deviation, etc.;

The seventh type of event is the data storage black box function triggered by specific conditions;

The eighth type of event is triggered regularly to store data;

For the ninth type of event, manually input unit maintenance records or remark information.

In step S103 , the graph creating module 262 generates an operation trend diagram of the unit according to the acquired state data and event data, and displays the operation trend diagram of the unit on the display screen 20 . For example, referring to Fig. 5, "L1" represents the operation trend diagram of the unit.

In step S104, the status trend display module 264 displays the operating status of the unit in the period of time with different color ribbons in the operating trend graph of the unit. For example, as shown in FIG. 5 , "L2" represents the operating status of the unit during this period of time displayed by different color ribbons. In this embodiment, different color ribbons are parallel to the time axis and located above the running trend graph.

In this embodiment, if the unit is in a specified state in a sub-interval (such as 2014-06-10 to 2014-08-10) within the period, the ribbon of the specified color will be used to show that the unit is in the sub-interval operating status.

For example, if the unit is in the first state (such as the unit is running normally) in a sub-interval within this period of time, the ribbon of the first color (such as green) is used to display the corresponding above the sub-interval of the time axis. The operating status of the unit in this sub-interval;

If the unit is in the second state in a sub-interval during this period (such as the unit is shut down), use a second color (such as gray) ribbon to show that the unit is in the sub-interval above the corresponding sub-interval on the time axis operating status;

If the unit is in the third state (such as the process of starting the unit) or the fourth state (such as the process of shutting down the unit) in a sub-interval during this period, use the ribbon of the third color (such as blue) on the time axis The corresponding top of the sub-interval displays the operating state of the unit in this sub-interval. It should be noted that, in other embodiments, the third state and the fourth state can also be displayed respectively with different colored ribbons;

If the unit is in the fifth state in a sub-interval during this period (for example, the unit is in the pre-alarm state), use a fourth color (such as yellow) color band to display that the unit is in the The operating status of the sub-interval;

If the unit is in the sixth state in a sub-interval during this period (for example, the unit is in the main alarm state), use the ribbon of the fifth color (such as red) to display that the unit is in the corresponding upper part of the sub-interval on the time axis. The operating status of the sub-interval;

If the unit is in the seventh state (such as unknown state) in a sub-interval of this period of time, use the ribbon of the sixth color (such as white) to display that the unit is in the sub-interval above the corresponding sub-interval of the time axis operating status.

As shown in Figure 5, the color band L2 includes sub-intervals L21, L22, L23, and L24. If the sub-interval L21 is in normal operation, the green color band is used to display L21; The band displays L22; if the sub-interval L23 is in the shutdown process of the unit, it will display L23 with a blue ribbon; if the sub-interval L24 is in the main alarm state, it will display L24 with a red ribbon.

It should be noted that the above is just an example to illustrate the corresponding relationship between the status of the unit and the color of the ribbon. In other embodiments, other ribbon colors preferred by the system operator can also be set for different statuses of the unit. .

In step S105, the status trend display module 264 uses event labels to display specific events that occur at a certain moment of the unit within the period of time on the different color ribbons. Wherein, the event label can choose to display one or more events.

In this embodiment, the specific events include, but are not limited to, the nine events listed above, and the user can choose not to display, to display one or more events, or to display all events. The check boxes of the above nine types of events can be displayed in the running trend graph, and the user can select the events to be displayed by ticking. If the user does not select any event, step S105 does not need to be executed. Furthermore, a select all button can be set, and when the user checks the button, all events will be displayed.

In this embodiment, the specific event may be displayed with different colors or event labels. In this embodiment, the event label may be a circle or other shapes. For example, a red circle is used to display the first type of event that occurs at a certain time on the ribbon, that is, the unit changes from other states to the main alarm state.

Referring to Figure 5, the event label "B" represents the seventh type of event: the data storage black box function triggered by a specific condition, and the event label "B" is represented by black;

The event label "M" represents the second type of event: the unit changes from other states to the pre-alarm state, and the event label "M" is represented by orange;

The event label "S" represents the fourth type of event: the unit changes from other states to the start state, and the event label "S" is represented in blue;

The event label "1X" represents the 1-octave frequency deviation in the sixth type of event, and the event label "2X" represents the 2-octave frequency deviation in the sixth type of event. Since they both belong to the sixth type of event, the same color is used in this embodiment (e.g. brown) indicates event labels "1X" and "2X".

In this embodiment, a unit includes multiple data monitoring points, and the specific event is displayed in units of the unit, and when the specific event occurs at any data monitoring point in the unit, it is marked as a unit event.

In this embodiment, for the operating state of the unit, if the state is stable and does not change, only a small amount of data is used to show a rough trend. Generally speaking, the changed data is the useful data. For the situation where the data changes, the change time and the data in a short period of time before and after the change time are recorded and displayed, so that the general trend of the unit operation can be seen, and the The details of its changes can be seen, which helps technicians quickly grasp the operating status of the unit.

Further, the present invention also includes the following steps: when an event tag receives a mouse click event or a mouse focus event, automatically display the data monitoring points (including manually input monitoring points) and causes that cause the event tag to correspond to a specific event.

For example, as shown in Figure 5, when the mouse clicks on the event label "S", or the mouse moves to the event label "S", it will automatically be displayed next to the event label "S": A measuring point X alarm, B measuring point Point Y type alarm, C measurement point Z type event, etc.

The core of the present invention is to highlight the abnormal state and the events that occurred in a selectable way, and quickly find the abnormality of the unit on a large time scale. Limited to these instructions. For those of ordinary skill in the art, without departing from the concept of the present invention, some simple deductions or substitutions can be made, which should be deemed to belong to the protection scope of the present invention.

Claims (10)

1. A method for displaying the operating state trend of a rotating machinery state monitoring system unit, characterized in that the method comprises: The data acquisition step is to acquire the status data and event data of a unit within a period of time; The graphic creation step is to generate an operation trend diagram of the unit according to the acquired state data and event data, and display the operation trend diagram of the unit on the display screen; and State trend display step 1, in the operation trend graph of the unit, use different color ribbons to display the operation status of the unit in this period of time. 2. The method for displaying the working state trend of the rotating machinery state monitoring system unit according to claim 1, characterized in that the method further comprises: State trend display step 2: on the different color ribbons, use event labels to display specific events that occurred at a certain moment of the unit during the period, wherein the event labels can choose to display one or more event. 3. The method for displaying the working state trend of the rotating machinery state monitoring system unit according to claim 1 or 2, wherein the state trend display step 1 includes: If the unit is in a specified state in a sub-interval during this period, the operating status of the unit in this sub-interval will be displayed with the ribbon of the specified color. 4. The method for displaying the working state trend of the rotating machinery state monitoring system unit according to claim 3, wherein the operating state at least includes one of the following states: the first state, the unit is running normally; the second state, Unit shutdown; third state, unit startup process; fourth state, unit shutdown process; fifth state, unit is in pre-alarm state; sixth state, unit is in main alarm state; seventh state, unknown state. 5. The method for displaying the working state trend of the unit of the rotating machinery state monitoring system according to claim 4, wherein the state trend display step 1 comprises: If the unit is in the first state in a sub-interval within the period, use the ribbon of the first color to display the operating status of the unit in the sub-interval; If the unit is in the second state in a sub-interval during the period, use the ribbon of the second color to display the operating status of the unit in the sub-interval; If the unit is in the third state or the fourth state in a sub-interval within this period of time, use the ribbon of the third color to display the operating status of the unit in this sub-interval; If the unit is in the fifth state in a sub-interval during this period, use the ribbon of the fourth color to display the operating status of the unit in this sub-interval; If the unit is in the sixth state in a sub-interval during the period, use the ribbon of the fifth color to show the operating status of the unit in the sub-interval; and If the unit is in the seventh state in a sub-interval within the period, the sixth color ribbon is used to display the operating status of the unit in the sub-interval. 6. The method for displaying the working state trend of the rotating machinery state monitoring system unit according to claim 5, wherein the first color is green, the second color is gray, and the third color is blue , the fourth color is yellow, the fifth color is red, and the sixth color is white. 7. The method for displaying the working state trend of the rotating machinery state monitoring system unit according to claim 2, wherein the specific event includes one of the following events: The first type of event, the unit changes from other states to the main alarm state; The second type of event, the unit changes from other states to the pre-alarm state; The third type of event, the unit changes from other states to the normal operation state; The fourth type of event, the unit changes from other states to the start state; The fifth type of event, the unit changes from other states to the shutdown state; In the sixth type of event, one or several operating parameters of the unit have changed beyond the threshold; The seventh type of event is the data storage black box function triggered by specific conditions; The eighth type of event is triggered regularly to store data; and For the ninth type of event, manually input unit maintenance records or remark information. 8. The method for displaying the working state trend of the rotating machinery state monitoring system unit according to claim 7, characterized in that, the specific event can be selected not to display, to display one or more events, and to display all events, and use different The color or event label shows the specific event. 9. The method for displaying the working state trend of the unit of the rotating machinery state monitoring system according to claim 8, characterized in that, when the specific event is displayed, the unit is used as the unit, and when any data monitoring point in the unit occurs, the When specific events are described, they are all marked as unit events, where one unit includes multiple data monitoring points. 10. The method for displaying the working state trend of the rotating machinery state monitoring system unit according to claim 8, characterized in that the method further comprises the following steps: When an event tag receives a mouse click event or a mouse focus event, it will automatically display the data monitoring points and reasons that cause the event tag to correspond to a specific event.