CN112905684A - Electric power data storage method and device and computer readable storage medium - Google Patents
Electric power data storage method and device and computer readable storage medium Download PDFInfo
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- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
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Abstract
The application discloses a power data storage method, which comprises the following steps: acquiring power data of an ammeter, and storing the power data into a memory; carrying out data normalization on the power data in the memory to generate a key-value key value pair; recording the collection state of the ammeter by the value in the key-value key value pair in a bitmap mode; the key-value pair is written to the database using a database insert operation. The method can effectively improve the efficiency of storing the data in the database, and the collection state of the ammeter is recorded in a bitmap mode, so that the memory occupation can be effectively reduced, the data storage efficiency is further improved, and the use experience of a user is improved. The application also provides an electric power data storage device, electronic equipment and a computer readable storage medium, and the electric power data storage device, the electronic equipment and the computer readable storage medium have the beneficial effects.
Description
Technical Field
The present application relates to the field of power system technologies, and in particular, to a method and an apparatus for storing power data, an electronic device, and a computer-readable storage medium
Background
An important index of collection quality in a power collection system is the efficiency of data archiving for storage. The most collection system has the phenomenon that the data storage lags behind untimely, the efficiency is not high at present, and the data storage mode is in the electric power collection system at present: after the data are collected, the merge operation is directly used for storing the data into the database, and the merge operation process of the database is complex and consumes long time, so that the data storage efficiency is low, and the system use experience of a user is influenced.
Disclosure of Invention
The application aims to provide an electric power data storage method, which can effectively improve the efficiency of storing data in a database, reduce the memory occupation and improve the data storage efficiency. The specific scheme is as follows:
in a first aspect, the application discloses a method for warehousing electric power data, which includes:
acquiring power data of an ammeter, and storing the power data into a memory;
carrying out data normalization on the power data in the memory to generate a key-value key value pair; the value in the key-value key value pair records the acquisition state of the ammeter in a bitmap mode;
and writing the key-value key value pair into a database by using a database insert operation.
Optionally, the data normalization of the power data in the memory to generate a key-value key value pair includes:
performing data normalization on the power data in the memory to generate an initial key-value key value pair;
and recording the value in the initial key-value key value pair in a compressed bitmap mode to generate the key-value key value pair.
Optionally, the acquiring the power data of the electricity meter includes:
and acquiring the power data of the electric meter in a profile curve form.
Optionally, the data normalization of the power data in the memory includes:
and classifying the power data in the memory according to the data time point and the service data type.
Optionally, after writing the key-value pair into the database by using a database insert operation, the method further includes:
judging whether all the key-value key value pairs are successfully written;
if not, switching to a database merge operation and writing the database merge operation into the database.
Optionally, after performing data normalization on the power data in the memory and generating a key-value key value pair, the method further includes:
judging whether the corresponding ammeter is successfully collected or not according to the value in the key-value key value pair;
if not, sending an unsuccessful message to the access layer to control the corresponding electric meter to re-collect the electric power data.
In a second aspect, the present application discloses a device for electric power data warehousing, including:
the acquisition module is used for acquiring the power data of the electric meter and storing the power data into the memory;
the generating module is used for carrying out data normalization on the power data in the memory and generating a key-value key value pair; the value in the key-value key value pair records the acquisition state of the ammeter in a bitmap mode;
and the writing module is used for writing the key-value key value pair into the database by using database insert operation.
Optionally, the generating module includes:
the first generation unit is used for carrying out data normalization on the power data in the memory and generating an initial key-value key value pair;
and the second generation unit is used for recording the value in the initial key-value key value pair in a compressed bitmap mode to generate the key-value key value pair.
In a third aspect, the present application discloses an electronic device, comprising:
a memory for storing a computer program;
and the processor is used for realizing the steps of the power data storage method when executing the computer program.
In a fourth aspect, the present application discloses a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the above-mentioned power data warehousing method.
The application provides a power data storage method, which comprises the following steps: acquiring power data of an ammeter, and storing the power data into a memory; carrying out data normalization on the power data in the memory to generate a key-value key value pair; the value in the key-value key value pair records the acquisition state of the ammeter in a bitmap mode; and writing the key-value key value pair into a database by using a database insert operation.
It can be seen that the key-value key value pair is written into the database through database insert operation, because the database insert operation is simple and efficient, the efficiency of data storage to the database can be effectively improved, the adoption of database merge operation in the related technology is avoided, the defect that the efficiency of data storage is lower is caused because the database merge operation process is complex and consumes long time, and the acquisition state of the ammeter is recorded in a bitmap mode, so that the memory occupation can be effectively reduced, the data storage efficiency is further improved, and the use experience of a user is improved. The application also provides an electric power data warehousing device, electronic equipment and a computer readable storage medium, which have the beneficial effects and are not repeated herein.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a flowchart of an electric power data storage method according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of an electric data warehousing device according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In a power acquisition system, a common mode of storing power data into a database is to use merge operation, where the performance of merge (replace) operation and insert operation in an actual database have a very large difference, and an operation flow is complex and consumes a long time. In most of the existing power acquisition systems, after data are acquired, the data are directly stored in a database, and other interventions are less performed in the middle. This approach, while simple, is inefficient and does not consider a bulk storage scheme; and the system has poor processing efficiency, and does not carry out operations such as data normalization and the like.
Based on the above technical problem, this embodiment provides an electric power data warehousing method, which can effectively improve the efficiency of storing data in a database, reduce memory usage, and improve data storage efficiency, specifically refer to fig. 1, where fig. 1 is a flowchart of an electric power data warehousing method provided in this embodiment of the present application, and specifically includes:
s101, acquiring power data of the electric meter, and storing the power data in a memory.
The embodiment does not limit the specific content of the power data, and may include voltage, current, electric energy, power, and the like, and may further include other power data, which may be selected according to actual situations. It can be understood that, in this embodiment, the power data is stored in the memory first, the power data can be normalized in the memory, and compared with the case that the power data is directly stored in the database after being collected in the related art and is not normalized, the data storage efficiency can be effectively improved. The embodiment does not limit the obtaining manner, and the obtaining may be performed in a profile curve form, may be performed one by one according to a time point, and may also be performed in other manners.
In a specific embodiment, in order to improve the efficiency of acquiring the power data, the acquiring the power data of the electricity meter in this embodiment may include:
and acquiring the power data of the electric meter in a profile curve form.
That is, the power data of the electric meter is acquired in the form of the profile curve in the embodiment, so that the efficiency of acquiring the power data can be effectively improved, and the acquisition time cost is reduced. The number of profile curves in the power acquisition system is not limited in the embodiment, and the setting can be performed according to actual requirements. Similarly, the interval time of each value of the profile curve is not limited in this embodiment. For example, profile1 may include a total forward active power, a forward active power rate of 1, a forward active power rate of 2, a forward active power rate of 3, a forward active power rate of 4, at 1 hour intervals; profile2 may include phase a voltage, phase a current, phase B voltage, phase B current, phase C voltage, and phase C current, with an interval of 30 minutes. That is, in this embodiment, the actual power data may be acquired in a profile curve form or actively pushed, and then recorded in the cache of the system itself, that is, stored in the memory.
S102, carrying out data normalization on the power data in the memory to generate a key-value key value pair; and recording the collection state of the electric meter by the value in the key-value key value pair in a bitmap mode.
The specific content of the power data is not limited in this embodiment, the data may be normalized at time points, or the voltage, the current, the power, and the like may be classified, and may be sorted according to actual requirements.
In a specific embodiment, the data normalization of the power data in the memory may include:
and classifying the data time point and the service data type of the power data in the memory.
In other words, in this embodiment, the data time point and the service data type of the electric power data cached in the memory are classified, so that the electric power data is structured. For example, the voltage data collected in each electric meter is classified into one type, the power data is classified into one type, and the like.
It should be noted that in the embodiment of the present application, data storage is mainly performed on the state of the electric power data collected by the electric meter, that is, whether the state of the electric power data collected successfully is stored. It can be understood that after the electric power data are normalized in the memory, the state of whether the acquisition is successful or not can be more clear and efficient, and the data storage efficiency is further improved. It can also be understood that, after the power data is normalized, a key-value key value pair is generated, a key in the key-value key value pair refers to a certain electric table entry at a certain time point, and correspondingly, the value records a state of successful acquisition, which may be that the acquisition is successfully recorded as 1, and the acquisition is not successfully recorded as 0. That is, the corresponding value can be queried through the key item.
It can also be understood that, in the embodiment, the collection state of the electric meters is recorded by using a bitmap method, and compared with the method of using a map, the method of using a key to record the state of each electric meter can reduce the occupation of the memory and improve the query efficiency.
In a specific embodiment, to further reduce the memory usage, data normalization is performed on the power data in the memory to generate a key-value key value pair, which may include:
performing data normalization on the power data in the memory to generate an initial key-value key value pair;
and recording the value in the initial key-value key value pair in a compressed bitmap mode to generate the key-value key value pair.
That is, in this embodiment, the power data in the memory is subjected to data normalization to generate an initial key-value key value pair, and then a compressed bitmap method is used to record the value in the initial key-value key value pair to generate a final key-value key value pair. It can be understood that the Bitmap mode adopts a binary mode to record the acquisition state, each bit of the binary mode can record the acquisition state, if the map mode is adopted, the successful meter reading states of n electric meters need to apply for n keys to store, but if the Bitmap mode is adopted to store, only 1 byte is theoretically needed, and the storage space is greatly reduced. And the adoption of the EWAHCompressedBitmap format can further compress the continuously same state in the middle, thereby further reducing the memory occupation.
In a specific embodiment, in order to reduce the data missing point, after performing data normalization on the power data in the memory and generating a key-value key value pair, the method may further include:
judging whether the corresponding ammeter is successfully collected or not according to the value in the key-value key value pair;
if not, sending an unsuccessful message to the access layer to control the corresponding electric meter to re-collect the electric power data.
That is, in this embodiment, whether the corresponding electric meter is successfully collected may be determined by the value in the key-value key value pair, that is, when the value is 1, it is determined that the corresponding electric meter is successfully collected; and when the value is 0, indicating that the corresponding electric meter acquisition is unsuccessful. And when the corresponding ammeter is judged to be unsuccessfully collected, sending an unsuccessful message to the access layer, so that the access layer controls the corresponding ammeter to collect the electric power data again. The subsequent acquisition success rate can be improved, and the data missing points are reduced.
A specific example is provided below.
And the outer layer is recorded in a Map mode, key is tv + tableName, value is EWAHCompressedBitmap, when the file is loaded, id of the file is numbered again, the file is numbered continuously from 1, and if the corresponding meter is successfully acquired, the bit number of the phase is 1 for the value of the corresponding time node. For example, if the number of the data corresponding to table a is 5000, and the data acquisition of 13:00 is successful, the 5000 th bit of the data of the service table corresponding to 13:00 is set to 1. And subsequently judging whether the acquisition is successful or not, and acquiring the value of the corresponding bit according to the time plus the table name. For example, 10000 meters need to be collected, there are 3 profiles, the profile1 interval is 1 hour, the profile2 interval is 30 minutes, the profile3 interval is 2 hours:
profile 1: there are 24 key-value pairs within a day, the key-values 00:00:00+ xxx, 01:00:00+ xxx, 02:00:00+ xxx. value 10000 bitmaps.
profile 2: there are 48 key-value pairs within a day, with key values 00:00:00+ xxx, 00:30:00+ xxx, 01:00:00+ xxx, and within a day. value 10000 bitmaps.
profile 3: there are 12 key-value pairs within a day, the key values 00:00:00+ xxx, 02:00:00+ xxx, 04:00:00+ xxx, and all. value 10000 bitmaps.
S103, writing the key-value key value pair into the database by using database insert operation.
In the embodiment, the key-value key value pair is written into the database by using the database insert operation, and compared with the database merge operation, the database insert operation has the characteristics of simplicity and high efficiency in operation, and the data storage efficiency can be effectively improved.
In a specific embodiment, in order to improve the overall successful warehousing rate, after writing the key-value pair into the database by using the database insert operation, the method may further include:
judging whether all key-value key value pairs are successfully written;
if not, switching to the database merge operation and writing the operation into the database.
That is, in this embodiment, when there is a failure in writing a key-value key value pair into a database through a database insert operation, that is, when an error is found or an exception is thrown, the key-value key value pair may be switched to a database merge operation to continue writing into the database, so that the overall success rate of entering the database can be improved.
It can be understood that, in the embodiment, the value in the profile curve can be updated according to the information of the electric meter device to which the key value is corresponding by finding the key value in the profile curve; then periodically updating the value in the bitmap and updating data to a database; then, firstly, using database insert operation, the writing success rate is high, for example, the writing success rate can reach more than 97%; if errors are found or abnormal conditions are thrown out, switching to the database merge operation to be put in storage; and for the operation of the bitmap value, the operation performance is better because the operation is carried out in the memory.
Based on the technical scheme, the embodiment records the acquisition progress of each profile curve of each electric meter to the corresponding bitmap, and records the acquisition state of the electric meters, and the database insert operation is adopted as much as possible to perform warehousing, so that unnecessary time-consuming actions such as database merge operation are avoided, and the overall data storage efficiency is effectively improved.
Referring to fig. 2, fig. 2 is a schematic structural diagram of an electric data warehousing device provided in an embodiment of the present application, where the electric data warehousing device described below and the electric data warehousing method described above may be referred to in a corresponding manner, and the relevant modules are all disposed therein, and fig. 2 is a schematic structural diagram of the electric data warehousing device provided in the embodiment of the present application, and includes:
in some specific embodiments, the method specifically includes:
the obtaining module 201 is configured to obtain power data of an electric meter, and store the power data in a memory;
the generating module 202 is configured to perform data normalization on the power data in the memory to generate a key-value key value pair; recording the collection state of the ammeter by the value in the key-value key value pair in a bitmap mode;
and the writing module 203 is used for writing the key-value key value pair into the database by using the database insert operation.
In some specific embodiments, the generating module 202 includes:
the first generation unit is used for carrying out data normalization on the power data in the memory and generating an initial key-value key value pair;
and the second generation unit is used for recording the value in the initial key-value key value pair in a compressed bitmap mode to generate the key-value key value pair.
In some specific embodiments, the obtaining module 201 includes:
and the acquisition unit is used for acquiring the power data of the electric meter in a profile curve form.
In some specific embodiments, the generating module 202 includes:
and the classification unit is used for classifying the data time point and the service data type of the power data in the memory.
In some specific embodiments, the method further comprises:
the first judgment module is used for judging whether all key-value key value pairs are successfully written in;
and the switching module is used for switching to the database merge operation and writing the database merge operation into the database if the database merge operation is not performed.
In some specific embodiments, the method further comprises:
the second judgment module is used for judging whether the corresponding ammeter is successfully collected or not according to the value in the key-value key value pair;
and the sending module is used for sending an unsuccessful message to the access layer if the access layer is not successful, so as to control the corresponding electric meter to acquire the electric power data again.
Since the embodiment of the power data warehousing device part corresponds to the embodiment of the power data warehousing method part, for the embodiment of the power data warehousing device part, reference is made to the description of the embodiment of the power data warehousing method part, and details are not repeated here.
In the following, an electronic device provided by the embodiment of the present application is introduced, and the electronic device described below and the electric power data storage method described above may be referred to correspondingly.
The application also discloses an electronic device, including:
a memory for storing a computer program;
and the processor is used for realizing the steps of the power data storage method when executing the computer program.
Since the embodiment of the electronic device portion corresponds to the embodiment of the power data entry method portion, please refer to the description of the embodiment of the power data entry method portion for the embodiment of the electronic device portion, and details are not repeated here.
The following describes a computer-readable storage medium provided by embodiments of the present application, and the computer-readable storage medium described below and the method described above may be referred to correspondingly.
The application also discloses a computer readable storage medium, on which a computer program is stored, and the computer program realizes the steps of the above power data storage method when being executed by a processor.
Since the embodiment of the computer-readable storage medium portion corresponds to the embodiment of the electric power data warehousing method portion, please refer to the description of the embodiment of the electric power data warehousing method portion for the embodiment of the computer-readable storage medium portion, and details are not repeated here.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The above provides a detailed description of a power data storage method, a device, an electronic device and a computer-readable storage medium. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
Claims (10)
1. A power data warehousing method is characterized by comprising the following steps:
acquiring power data of an ammeter, and storing the power data into a memory;
carrying out data normalization on the power data in the memory to generate a key-value key value pair; the value in the key-value key value pair records the acquisition state of the ammeter in a bitmap mode;
and writing the key-value key value pair into a database by using a database insert operation.
2. The method according to claim 1, wherein the data normalization of the power data in the memory to generate a key-value key value pair includes:
performing data normalization on the power data in the memory to generate an initial key-value key value pair;
and recording the value in the initial key-value key value pair in a compressed bitmap mode to generate the key-value key value pair.
3. The electric power data warehousing method according to claim 1, wherein the acquiring of the electric power data of the electric meter comprises:
and acquiring the power data of the electric meter in a profile curve form.
4. The method according to claim 1, wherein the data normalization of the power data in the memory includes:
and classifying the power data in the memory according to the data time point and the service data type.
5. The method of claim 1, wherein after writing the key-value pair to a database using a database insert operation, further comprising:
judging whether all the key-value key value pairs are successfully written;
if not, switching to a database merge operation and writing the database merge operation into the database.
6. The method according to claim 2, wherein after the data normalization of the power data in the memory and the generation of the key-value key value pair, the method further comprises:
judging whether the corresponding ammeter is successfully collected or not according to the value in the key-value key value pair;
if not, sending an unsuccessful message to the access layer to control the corresponding electric meter to re-collect the electric power data.
7. An electric power data warehousing device, comprising:
the acquisition module is used for acquiring the power data of the electric meter and storing the power data into the memory;
the generating module is used for carrying out data normalization on the power data in the memory and generating a key-value key value pair; the value in the key-value key value pair records the acquisition state of the ammeter in a bitmap mode;
and the writing module is used for writing the key-value key value pair into the database by using database insert operation.
8. The power data warehousing device of claim 7, wherein the generation module comprises:
the first generation unit is used for carrying out data normalization on the power data in the memory and generating an initial key-value key value pair;
and the second generation unit is used for recording the value in the initial key-value key value pair in a compressed bitmap mode to generate the key-value key value pair.
9. An electronic device, comprising:
a memory for storing a computer program;
a processor for implementing the steps of the power data warehousing method of any one of claims 1 to 6 when executing the computer program.
10. A computer-readable storage medium, having stored thereon a computer program which, when executed by a processor, performs the steps of the power data warehousing method of any one of claims 1-6.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114690978A (en) * | 2022-04-25 | 2022-07-01 | 惠州汇能精电科技有限公司 | Meter head display method and device for hybrid energy storage power supply |
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