CN113795865A

CN113795865A - Method and device for representing equipment operation data and storage medium

Info

Publication number: CN113795865A
Application number: CN201980095982.8A
Authority: CN
Inventors: 王丹; 李晶; 刘浩; 华文韬; 李昂; 梁月林; 于勇
Original assignee: Siemens AG
Current assignee: Siemens AG
Priority date: 2019-05-21
Filing date: 2019-05-21
Publication date: 2021-12-14
Also published as: WO2020232641A1

Abstract

The embodiment of the invention discloses a method and a device for representing equipment operation data and a storage medium. The method comprises the following steps: acquiring one-dimensional time series operation data of equipment, wherein the one-dimensional time series operation data consists of numerical values acquired based on each time point; based on a coordinate system with the abscissa as the time period and the ordinate as each time point in the time period, marking the numerical value acquired based on each time point in the coordinate system by adopting a predetermined color corresponding to the numerical value to obtain an image; wherein different values correspond to different colors. The technical scheme in the embodiment of the invention can more intuitively express the one-dimensional time sequence data of the equipment.

Description

Method and device for representing equipment operation data and storage medium

Technical Field

The invention relates to the field of electric power or energy systems, in particular to a method and a device for representing equipment operation data and a storage medium.

Background

The health status assessment of an operating device in an electric power or energy system is generally analyzed and assessed by its operating data, such as power, voltage, and current, which are one-dimensional time series data and heavily depend on the technology used in the time series analysis. For example, the time-series data of power for a particular transformer is usually represented in the form of p (t) { p1, p2, …, pi, … }, where pi represents the real number of power for the particular transformer at each time step, and the health of the transformer can be evaluated based on p (t) or other similar data such as voltage or current. Specifically, various time series analysis techniques or clustering techniques and the like may be applied to the above data to perform the evaluation of the health condition of the transformer.

However, since the one-dimensional time series-based representation method is not intuitive, the corresponding analysis method is also limited by the one-dimensional data representation method.

Disclosure of Invention

In view of the above, embodiments of the present invention provide a method for representing device operation data on one hand, and provide an apparatus and a storage medium for representing device operation data on the other hand, so as to perform a more intuitive representation on one-dimensional time series data of a device.

The method for representing the equipment operation data provided by the embodiment of the invention comprises the following steps: acquiring one-dimensional time series operation data of equipment, wherein the one-dimensional time series operation data consists of numerical values acquired based on each time point; in a coordinate system with a horizontal coordinate as a time period and a vertical coordinate as each time point in the time period, marking the numerical value acquired based on each time point in the coordinate system by adopting a predetermined color value corresponding to the numerical value to obtain an image; wherein different values correspond to different color values; wherein the time period is determined according to a resolution of the one-dimensional time series operational data.

In one embodiment, the method further comprises: and filtering the image by adopting a filter to obtain a filtered image.

In one embodiment, the different values correspond to different color values: different values correspond to color values of different grays, or different values correspond to color values of different colors.

In one embodiment, the apparatus comprises a transformer; the one-dimensional time series operation data includes any one of power, voltage, and current.

In one embodiment, the time period is one day, one week, or any number of days that meets the requirements.

The device for representing the equipment operation data provided by the embodiment of the invention comprises: the one-dimensional data acquisition module is used for acquiring one-dimensional time sequence operation data of equipment and consists of numerical values acquired based on each time point; the data representation module is used for identifying the numerical value acquired based on each time point in a coordinate system by adopting a color value corresponding to the numerical value, which is determined in advance, in the coordinate system based on the fact that the abscissa is a time period and the ordinate is the coordinate system of each time point in the time period to obtain an image; wherein different values correspond to different color values; wherein the time period is determined according to a resolution of the one-dimensional time series operational data.

In one embodiment, the apparatus further comprises: and the filtering module is used for filtering the image to obtain a filtered image.

The present invention provides a device for representing device operation data, including: the method comprises the following steps: at least one memory and at least one processor, wherein: the at least one memory is for storing a computer program; the at least one processor is configured to call the computer program stored in the at least one memory to execute the method for representing the device operation data according to any of the embodiments.

A computer-readable storage medium according to an embodiment of the present invention stores thereon a computer program, which can be executed by a processor and implements the method for representing device operation data described in any of the above embodiments.

In the above scheme, it can be seen that, in the embodiment of the present invention, the one-dimensional time series operation data of the device is converted into the two-dimensional image in which the time points in each time period are represented by colors in the coordinate system in which each time period is the abscissa and the time point in each time period is the ordinate, so that the one-dimensional time series operation data can be more intuitively represented.

In addition, the two-dimensional image is further filtered by a filter, so that high-frequency noise in the two-dimensional image can be removed, and useful features can be more conveniently extracted from the two-dimensional image.

Furthermore, the one-dimensional time series running data can be displayed more intuitively by adopting different colors and corresponding to different numerical values.

The invention also provides a cloud platform or a server, which comprises the device for representing the equipment operation data in any one of the above embodiments. The method may thus be implemented by an application on a non-native cloud or an application on a remote server.

Finally, a concrete realization of the transformer is provided, and the technical scheme is convenient to be applied on site.

Drawings

The foregoing and other features and advantages of the invention will become more apparent to those skilled in the art to which the invention relates upon consideration of the following detailed description of a preferred embodiment of the invention with reference to the accompanying drawings, in which:

fig. 1 is an exemplary flowchart of a method for representing device operation data according to an embodiment of the present invention.

FIG. 2 is a schematic representation of plant operational data in one example of the invention. Fig. 2A is a method of representing a coordinate system in which an abscissa represents a time point and an ordinate represents a numerical value, fig. 2B is a method of representing a two-dimensional image in which an abscissa represents a time period and an ordinate represents each time point in the time period and a numerical value is represented by a color value, and fig. 2C is an image obtained by filtering fig. 2B.

Fig. 3 is an exemplary block diagram of a device for representing operation data of an apparatus according to an embodiment of the present invention.

Fig. 4 is an exemplary block diagram of a device for representing operation data of another apparatus according to an embodiment of the present invention.

Wherein the reference numbers are as follows:

reference numerals	Means of
S102、S104	Step (ii) of
301	One-dimensional data acquisition module
302	Data representation module
303	Filtering module
41	Memory device
42	Processor with a memory having a plurality of memory cells

Detailed Description

For simplicity and clarity of description, the invention will be described below by describing several representative embodiments. Numerous details of the embodiments are set forth to provide an understanding of the principles of the invention. It will be apparent, however, that the invention may be practiced without these specific details. Some embodiments are not described in detail, but rather are merely provided as frameworks, in order to avoid unnecessarily obscuring aspects of the invention. Hereinafter, "including" means "including but not limited to", "according to … …" means "at least according to … …, but not limited to … … only". In view of the language convention of chinese, the following description, when it does not specifically state the number of a component, means that the component may be one or more, or may be understood as at least one.

In the embodiment of the invention, in order to more intuitively represent the one-dimensional time series running data of the equipment, the one-dimensional time series data is considered to be represented by adopting a two-dimensional imaging mode according to the invention.

In order to make the technical scheme and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

Fig. 1 is an exemplary flowchart of a method for representing device operation data according to an embodiment of the present invention. As shown in fig. 1, the method may include the steps of:

step S102, one-dimensional time series operation data of a device is obtained, wherein the one-dimensional time series operation data is composed of numerical values collected based on all time points.

In this step, the one-dimensional time series operation data may be different for different devices. Taking the transformer as an example, the one-dimensional time-series operation data may include voltage time-series data, power time-series data, or current time-series data.

For example, taking the voltage time-series data of the transformer device as an example, if the raw data is plotted according to the time points, the graph shown in fig. 2A is obtained. In fig. 2A, the abscissa represents time points, for example, a total of 6 ten thousand acquisition time points in two years, and the ordinate represents numerical values.

And step S104, based on a coordinate system with an abscissa as a time period and an ordinate as each time point in the time period, identifying the numerical value acquired based on each time point in the coordinate system by using a predetermined color value corresponding to the numerical value to obtain an image. Wherein different values correspond to different color values. Wherein the time period is determined according to a resolution of the one-dimensional time series operational data.

For example, for the voltage time-series data shown in fig. 2A, it is assumed that the determined time period is one day, but in practical application, the time period may be one week or one month, or any desired period such as 10 days, 15 days, 20 days, 25 days, 30 days, 40 days, etc. The specific value can be determined according to actual needs, and the method is not limited herein. A coordinate system may be set with the abscissa representing each day of two years and the ordinate representing each time point of the day (in the case of 96 acquisition time points per day as an example), and an image as shown in fig. 2B may be obtained. In fig. 2B, color values of different gradations are used for different numerical values, and a darker color indicates a larger numerical value, and a lighter color indicates a smaller numerical value. In practice, color values of different colors may be used for different values, for example, the color range may be represented from dark blue to dark red, and the higher or lower the value, the higher the intensity of red or blue, and vice versa. In practical application, the effect is better when the color value is used for representation.

The time-dependent voltage variation is shown in fig. 2B, i.e. the voltage is higher in the beginning of each day, and also higher in the end of each day, while the voltage is lower in the middle of each day. However, it is difficult to see this point if it is based on only one-dimensional time-series data as shown in fig. 2A.

Further, since fig. 2B is a two-dimensional image representation of the original time-series data, it sometimes appears noisy due to the presence of noise. In order to facilitate the extraction of useful features or patterns from the image in subsequent use, the embodiment of the present invention may further employ a filter to filter the useful features or patterns, so as to remove high-frequency noise, resulting in the filtered image shown in fig. 2C. The filter may be any function as long as it can remove high-frequency noise. For example, in the present embodiment, a two-dimensional gaussian filter may be used to remove noise or a minute speckle in fig. 2B.

It can be seen that, by performing the superposition processing on the one-dimensional time-series operation data in each time period, so as to convert or reshape the one-dimensional time-series operation data into a two-dimensional image, the converted two-dimensional image can more intuitively represent the operation state of the transformer, for example, when the operation state is represented by a color range from dark blue to dark red, a red region can represent a high operation region or period of the transformer, and a blue region can represent a low operation region or period of the transformer.

The method for representing device operation data in the embodiment of the present invention is described in detail above, and a device for representing device operation data in the embodiment of the present invention is described below.

Fig. 3 is an exemplary block diagram of a device for representing operation data of an apparatus according to an embodiment of the present invention. As shown in the solid line portion in fig. 3, the apparatus may include: a one-dimensional data acquisition module 301 and a data representation module 302.

The one-dimensional data acquiring module 301 is configured to acquire one-dimensional time series operation data of a device. The one-dimensional time series operating data is composed of numerical values collected based on each time point.

The data representation module 302 is configured to identify, in a coordinate system based on an abscissa as a time period and an ordinate as each time point in the time period, a value acquired based on each time point in the coordinate system by using a predetermined color value corresponding to the value, so as to obtain an image; wherein different values correspond to different color values; wherein the time period is determined according to a resolution of the one-dimensional time series operational data.

In one embodiment, the apparatus may further include a filtering module 303, as shown in the dotted line of fig. 3, for filtering the image to obtain a filtered image.

In one embodiment, the device may include a transformer, and accordingly, the one-dimensional time-series operation data may include any one of power, voltage, and current.

Fig. 4 is an exemplary block diagram of a device for representing operation data of another apparatus according to an embodiment of the present invention. As shown in fig. 4, the apparatus may include: at least one memory 41 and at least one processor 42. In addition, some other components may be included, such as a communications port, etc. These components communicate over a bus.

Wherein the at least one memory 41 is adapted to store a computer program. In one embodiment, the computer program may be understood to include the various modules of the means for representing operational data of the apparatus shown in fig. 3. In addition, the at least one memory 41 may also store an operating system and the like. Operating systems include, but are not limited to: an Android operating system, a Symbian operating system, a Windows operating system, a Linux operating system, and the like.

The at least one processor 42 is configured to invoke computer programs stored in the at least one memory 41 to perform the method for representing the device operational data described in the embodiments of the present invention. The processor 42 may be a CPU, processing unit/module, ASIC, logic module, or programmable gate array, etc.

It should be noted that not all steps and modules in the above flows and structures are necessary, and some steps or modules may be omitted according to actual needs. The execution order of the steps is not fixed and can be adjusted as required. The division of each module is only for convenience of describing adopted functional division, and in actual implementation, one module may be divided into multiple modules, and the functions of multiple modules may also be implemented by the same module, and these modules may be located in the same device or in different devices.

It is understood that the hardware modules in the above embodiments may be implemented mechanically or electronically. For example, a hardware module may include a specially designed permanent circuit or logic device (e.g., a special purpose processor such as an FPGA or ASIC) for performing specific operations. A hardware module may also include programmable logic devices or circuits (e.g., including a general-purpose processor or other programmable processor) that are temporarily configured by software to perform certain operations. The implementation of the hardware module in a mechanical manner, or in a dedicated permanent circuit, or in a temporarily configured circuit (e.g., configured by software), may be determined based on cost and time considerations.

In addition, a computer-readable storage medium is provided in the embodiments of the present invention, and has a computer program stored thereon, where the computer program can be executed by a processor and implement the method for representing device operation data described in the embodiments of the present invention. Specifically, a system or an apparatus equipped with a storage medium on which a software program code that realizes the functions of any of the embodiments described above is stored may be provided, and a computer (or a CPU or MPU) of the system or the apparatus is caused to read out and execute the program code stored in the storage medium. Further, part or all of the actual operations may be performed by an operating system or the like operating on the computer by instructions based on the program code. The functions of any of the above-described embodiments may also be implemented by writing the program code read out from the storage medium to a memory provided in an expansion board inserted into the computer or to a memory provided in an expansion unit connected to the computer, and then causing a CPU or the like mounted on the expansion board or the expansion unit to perform part or all of the actual operations based on the instructions of the program code. Examples of the storage medium for supplying the program code include floppy disks, hard disks, magneto-optical disks, optical disks (e.g., CD-ROMs, CD-R, CD-RWs, DVD-ROMs, DVD-RAMs, DVD-RWs, DVD + RWs), magnetic tapes, nonvolatile memory cards, and ROMs. Alternatively, the program code may be downloaded from a server computer via a communications network.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

The method for representing the equipment operation data is characterized by comprising the following steps:

acquiring one-dimensional time series operation data of a device, which is composed of numerical values collected based on respective time points (S102); and

based on a coordinate system with an abscissa as a time period and an ordinate as each time point in the time period, identifying the numerical value acquired based on each time point in the coordinate system by using a predetermined color value corresponding to the numerical value to obtain an image (S104); wherein different values correspond to different color values; wherein the time period is determined according to a resolution of the one-dimensional time series operational data.
A method of representing operational data of a device as claimed in claim 1, the method further comprising: and filtering the image by adopting a filter to obtain a filtered image.
The method according to claim 1 or 2, wherein the different values correspond to different color values: different values correspond to color values of different grays, or different values correspond to color values of different colors.
Method for representation of plant operational data according to claim 1 or 2, characterized in that the plant comprises a transformer;

the one-dimensional time series operation data includes any one of power, voltage, and current.
A method as claimed in claim 4, wherein the time period is one day, one week or any number of days required.
Apparatus for representing operational data of a device, comprising:

a one-dimensional data acquisition module (301) for acquiring one-dimensional time series operating data of a device, which is composed of values acquired based on each time point; and

the data representation module (302) is used for identifying the numerical value acquired based on each time point in a coordinate system by adopting a predetermined color value corresponding to the numerical value based on a coordinate system with an abscissa as a time period and an ordinate as each time point in the time period to obtain an image; wherein different values correspond to different color values; wherein the time period is determined according to a resolution of the one-dimensional time series operational data.
The apparatus for representing operation data of a device according to claim 6, the apparatus further comprising: and the filtering module (303) is used for filtering the image to obtain a filtered image.
The device operational data representation apparatus of claim 6 or 7, wherein the device comprises a transformer;

the one-dimensional time series operation data includes any one of power, voltage, and current.
Apparatus for representing operational data of a device, comprising: at least one memory (41) and at least one processor (42), wherein:

the at least one memory (41) is for storing a computer program;

the at least one processor (42) is configured to invoke a computer program stored in the at least one memory (41) to perform the method of representing device operational data according to any one of claims 1 to 5.
A cloud platform or server comprising means for representing device operational data according to any one of claims 6 to 9.
A computer-readable storage medium having stored thereon a computer program; characterized in that said computer program is capable of being executed by a processor and of implementing a method for representing operational data of a device according to any one of claims 1 to 5.