CN107239232B - Data storage method for electric energy meter - Google Patents
Data storage method for electric energy meter Download PDFInfo
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- CN107239232B CN107239232B CN201710325142.9A CN201710325142A CN107239232B CN 107239232 B CN107239232 B CN 107239232B CN 201710325142 A CN201710325142 A CN 201710325142A CN 107239232 B CN107239232 B CN 107239232B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
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- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/0614—Improving the reliability of storage systems
- G06F3/0619—Improving the reliability of storage systems in relation to data integrity, e.g. data losses, bit errors
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
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- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
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Abstract
The invention provides a data storage method for an electric energy meter, and belongs to the field of power equipment. The method comprises the steps of acquiring data acquired by an electric energy meter, classifying the data according to different attribution channels to obtain classified data aiming at different channels; extracting the timestamp data of the classified data, dividing the classified data into data to be stored corresponding to different storage time nodes based on the data validity period, and storing the data to be stored at any time by combining the system of the current electric energy meter. The attributes such as the channel and the time node of the data are added in the whole storage process, and the storage time of each data is determined according to the difference of the attributes, so that the storage time and the sequence of the data can be reasonably arranged, the situation of data omission is avoided, manual intervention is not needed in the data storage process, and the management cost is reduced.
Description
Technical Field
The invention belongs to the field of power equipment, and particularly relates to a data storage method for an electric energy meter.
Background
Along with the popularization of the smart electric meters, the data volume required to be stored is gradually increased, when the existing data storage mode is used for storing the electric power data, the storage time sequence of the data cannot be managed, the electric power data needs to be combed in a manual mode, and the management cost of data storage is increased.
Disclosure of Invention
In order to solve the defects and shortcomings in the prior art, the invention provides a data storage method for an electric energy meter, which sorts storage time and sequence by means of the self-attribute of data.
In order to achieve the above technical object, the present invention provides a data storage method for an electric energy meter for managing a storage device installed in the electric energy meter, the data storage method comprising:
the data collected by the electric energy meter is obtained,
classifying the data according to different attribution channels to obtain classified data aiming at different channels;
extracting the timestamp data of the classified data, dividing the classified data into data to be stored corresponding to different storage time nodes based on the data validity period, and storing the data to be stored at any time by combining the system of the current electric energy meter.
Optionally, the classifying the data according to different attribution channels to obtain classified data for different channels includes:
extracting channel information in the data, and dividing the data with the same channel information into the data from the same channel;
in the above manner, the entire data is divided into classified data for a preset number of channels.
Optionally, the extracting the timestamp data of the classified data, dividing the classified data into data to be stored corresponding to different storage time nodes based on a data validity period, and storing the data to be stored in combination with the system time of the current electric energy meter, includes:
extracting time stamp data in the classified data;
giving different data validity periods to each classified data aiming at different channels to which the classified data belong;
determining data storage time according to the validity period of the data and by combining the timestamp data in the classified data, and generating data to be stored corresponding to the data storage time;
and acquiring the system time of the current electric energy meter, and storing the data to be stored into the storage device when the system runs to the data storage time.
Optionally, the assigning different data validity periods to each classified data for different channels to which the classified data belongs, determining a data storage time according to the data validity period and by combining timestamp data in the classified data, and generating data to be stored corresponding to the data storage time includes:
obtaining a channel to which sample data in classified data belongs, determining the grade of the channel, and determining the data validity period corresponding to the sample data according to the grade of the channel;
extracting time stamp data representing the data generation time in the classified data, and superposing a data validity period on the time stamp data to obtain a data storage time corresponding to the sample data;
and generating the data to be stored by taking the data storage time as an attribute and taking the sample data as the basis.
Optionally, the channel includes: the channel 1 is used for transmitting voltage, current and frequency data; a channel 2 for transmitting active and reactive power; channel 3 for transmitting power factor; the channel 4 is used for transmitting active and inactive total electric energy; the channel 5 is used for transmitting four-quadrant reactive total electric energy; and a channel 6 for transmitting the current demand.
Optionally, the obtaining a channel to which sample data in the classified data belongs, determining a class to which the channel belongs, and determining a data validity period corresponding to the sample data according to the channel class includes:
when the channels are the channel 1 and the channel 6, corresponding to a first grade, and the data validity period corresponding to the first grade is 1 min;
when the channels are the channel 2 and the channel 3, corresponding to a second level, the data validity period corresponding to the second level is 2 min;
and when the channels are the channel 4 and the channel 5, corresponding to a third level, and the data validity period corresponding to the third level is 5 min.
Optionally, the obtaining the system time of the current electric energy meter, and storing the data to be stored in the storage device when the system runs to the data storage time at the time, includes:
acquiring the data storage time of data to be stored;
if the data storage time of at least one piece of data to be stored is the same, when the system of the electric energy meter runs to the data storage time, all the data to be stored corresponding to the data storage time are stored in the storage device.
Optionally, the method further includes: the data is compressed.
The technical scheme provided by the invention has the beneficial effects that:
the attributes such as the channel and the time node of the data are added in the whole storage process, and the storage time of each data is determined according to the difference of the attributes, so that the storage time and the sequence of the data can be reasonably arranged, the situation of data omission is avoided, manual intervention is not needed in the data storage process, and the management cost is reduced.
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In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a schematic flow chart of a data storage method for an electric energy meter according to the present invention.
Detailed Description
To make the structure and advantages of the present invention clearer, the structure of the present invention will be further described with reference to the accompanying drawings.
Example one
The present invention provides a data storage method for an electric energy meter, for managing a storage device installed in the electric energy meter, as shown in fig. 1, the data storage method comprising:
11. the data collected by the electric energy meter is obtained,
12. classifying the data according to different attribution channels to obtain classified data aiming at different channels;
13. extracting the timestamp data of the classified data, dividing the classified data into data to be stored corresponding to different storage time nodes based on the data validity period, and storing the data to be stored at any time by combining the system of the current electric energy meter.
In implementation, in order to solve the problem that the storage time sequence of the data of the electric energy meter cannot be managed in the prior art, the data storage method for the electric energy meter is provided, the data from the electric energy meter are classified according to different attribution channels to obtain classified data belonging to different channels, the storage life of each data in the classified data is further obtained, and therefore the data storage is completed according to the storage period.
When the retention period is acquired, firstly, the timestamp of each data acquired from the classified data needs to be acquired, then, the time node needing to be stored is determined according to different validity periods of each data, and further, the data to be stored comprising the data and the corresponding time node are obtained, and when the system of the electric energy meter runs to the corresponding time node at any moment, the data to be stored corresponding to the current time node is stored.
Due to the fact that attributes such as channels and time nodes of the data are added in the whole storage process, and the storage time of each data is determined according to the difference of the attributes, the storage time and the sequence of the data can be reasonably arranged, the situation of data omission is avoided, manual intervention in the data storage process is not needed, and management cost is reduced.
Optionally, step 12 in the data storage method includes:
201. extracting channel information in the data, and dividing the data with the same channel information into the data from the same channel;
202. in the above manner, the entire data is divided into classified data for a preset number of channels.
In this embodiment, the data acquired in step 11 includes channel information indicating which channel the data is acquired through, in addition to the data content of the data itself. In this step, the obtained data is classified based on the channel information, the data from the same channel is classified into the same type of data, and all the data obtained in step 11 are subjected to the above processing to obtain classified data having the same number as the number of channels, so as to perform subsequent processing.
Optionally, after the classified data is obtained in step 12, step 13 is further executed, which includes:
301. extracting time stamp data in the classified data;
302. giving different data validity periods to each classified data aiming at different channels to which the classified data belong;
303. determining data storage time according to the validity period of the data and by combining the timestamp data in the classified data, and generating data to be stored corresponding to the data storage time;
304. and acquiring the system time of the current electric energy meter, and storing the data to be stored into the storage device when the system runs to the data storage time.
In implementation, based on the obtained classified data, time stamp data capable of representing each data acquisition time needs to be extracted first, then based on the acquired channel information, each data is endowed with an effective period corresponding to a channel, and further based on the time stamp data, the effective period is combined to determine the data storage time corresponding to each data, and the data to be stored including the data and the storage time is determined. And finally, storing the data to be stored when the electric energy meter system runs for the time corresponding to the storage time at any moment.
Specifically, the determining the content of the data to be stored in the above steps 302 to 303 specifically includes:
401. obtaining a channel to which sample data in classified data belongs, determining the grade of the channel, and determining the data validity period corresponding to the sample data according to the grade of the channel;
402. extracting time stamp data representing the data generation time in the classified data, and superposing a data validity period on the time stamp data to obtain a data storage time corresponding to the sample data;
403. and generating the data to be stored by taking the data storage time as an attribute and taking the sample data as the basis.
In implementation, sample data is selected from the classified data, a channel to which the sample data belongs is determined according to channel information of the sample data, and then a channel grade of the channel to which the sample data belongs is determined, so that the data validity period of the sample data is determined according to the channel grade.
Here, the validity period of data from different channels can be determined according to the channel class because different channels transmit different types and characteristics of data, and for example, the channels and the types of data transmitted by the channels in the existing electric energy meter are:
the channel 1 is used for transmitting voltage, current and frequency data; a channel 2 for transmitting active and reactive power; channel 3 for transmitting power factor; the channel 4 is used for transmitting active and inactive total electric energy; the channel 5 is used for transmitting four-quadrant reactive total electric energy; and a channel 6 for transmitting the current demand.
Specifically, according to the definition of 6 channel data structures recorded on the load curve in the DL/T645-2007 multifunctional electric energy meter communication protocol,
channel 1: A. b, C phase voltage, A, B, C phase current, frequency,
and (3) a channel 2: active power and reactive power, total A, B, C phase active power, total A, B, C phase reactive power,
and (3) passage: the power factor sum is A, B, C phase power factor,
and (4) passage: active and reactive total electric energy, forward active total electric energy, reverse active total electric energy, combined reactive 1 total electric energy and combined reactive 2 total electric energy,
passage 5: the four-quadrant reactive total electric energy is obtained,
passage 6: the current demand is the current active demand and the current reactive demand.
Determining the data validity period corresponding to the sample data according to the channel grade, wherein the data validity period comprises the following steps:
when the channels are the channel 1 and the channel 6, the channel 1 and the channel 6 transmit transient data, and the data is updated quickly, so that the data needs to be endowed with the highest level and the shortest effective time, and the effective period of the data corresponding to the first level is 1min corresponding to the first level;
when the channels are the channel 2 and the channel 3, the updating speed of the data is general due to the short-term data transmitted by the channel 2 and the channel 3, so that the data needs to be endowed with a general grade and moderate effective time, and the effective period of the data corresponding to the second grade is 2min corresponding to the second grade;
when the channels are the channel 4 and the channel 5, since the channel 4 and the channel 5 transmit long-term data, the data is updated slowly, and therefore the data needs to be given the lowest level and the longest valid time, corresponding to the third level, and the valid period of the data corresponding to the third level is 5 min.
Optionally, the obtaining the system time of the current electric energy meter, and storing the data to be stored in the storage device when the system runs to the data storage time at the time, includes:
acquiring the data storage time of data to be stored;
if the data storage time of at least one piece of data to be stored is the same, when the system of the electric energy meter runs to the data storage time, all the data to be stored corresponding to the data storage time are stored in the storage device.
In the implementation, data to be stored corresponding to the current system time of the electric energy meter is generally stored, in the actual use process, as the amount of data to be stored is large, more than one data to be stored may exist at the same time, so that at a first time point, N data to be stored with the same data storage time can be stored, at a second time point, M data to be stored with the same data storage time can be stored, and at the first time point, X data to be stored with the same data storage time can be stored. Based on the storage mode, compared with the previous mode of sequentially storing each data, the storage efficiency can be improved, and the value N, M, X is a positive integer.
Optionally, the method further includes: the data is compressed.
In implementation, since the channels can be controlled to be closed, so that the storage period of the data can be changed, the same size of storage space opened for each channel is designed, which is beneficial to unified management. However, on the premise that the opened space is the same, the length of each data cannot be the same, so that data fragments are inevitably generated in the storage process, and the occupation of the storage space is increased invisibly. In order to reduce fragmentation and total storage space, a channel with a long byte number is compressed in the following form:
for channel 1 "voltage, current, frequency: 17 bytes "compress:
a voltage is expressed in 12 bits and 2 bits (3 voltages for a total of 36 bits, 8 bits for a byte, and 5 bytes for a total), so that the total compressed byte number of channel 1 is 16 bytes.
For channel 2 ", active and reactive power: 24 bytes "compress:
the total power is calculated by passing the phase separation power, so the storage is not needed;
20 bits 2 are used to express a power (6 kinds of power are 120 bits in total, one byte is 8 bits, so 15 bytes in total), and the other byte is a sign bit (sign, 6 kinds of power are expressed by using lower 6 bits); thus the total number of bytes of compression for channel 2 is 16 bytes.
The invention provides a data storage method for an electric energy meter, which comprises the steps of acquiring data acquired by the electric energy meter, classifying the data according to different attribution channels to obtain classified data aiming at different channels; extracting the timestamp data of the classified data, dividing the classified data into data to be stored corresponding to different storage time nodes based on the data validity period, and storing the data to be stored at any time by combining the system of the current electric energy meter. The attributes such as the channel and the time node of the data are added in the whole storage process, and the storage time of each data is determined according to the difference of the attributes, so that the storage time and the sequence of the data can be reasonably arranged, the situation of data omission is avoided, manual intervention is not needed in the data storage process, and the management cost is reduced.
The sequence numbers in the above embodiments are merely for description, and do not represent the sequence of the assembly or the use of the components.
The above description is only exemplary of the present invention and should not be taken as limiting the invention, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A data storage method for an electric energy meter for managing a storage device installed in the electric energy meter, the data storage method comprising:
acquiring data collected by the electric energy meter;
classifying the data according to different channel affiliations to obtain classified data aiming at different channels;
extracting the timestamp data of the classified data, dividing the classified data into data to be stored corresponding to different storage time nodes based on the data validity period, and storing the data to be stored at any time by combining the system of the current electric energy meter.
2. The data storage method for the electric energy meter according to claim 1, wherein the classifying the data according to different channel attributions to obtain classified data for different channels comprises:
extracting channel information in the data, and dividing the data with the same channel information into the data from the same channel;
in the above manner, the entire data is divided into classified data for a preset number of channels.
3. The data storage method for the electric energy meter according to claim 1, wherein the extracting the timestamp data of the classified data, dividing the classified data into data to be stored corresponding to different storage time nodes based on the validity period of the data, and storing the data to be stored in combination with the system time of the current electric energy meter comprises:
extracting time stamp data in the classified data;
giving different data validity periods to each classified data aiming at different channels to which the classified data belong;
determining data storage time according to the validity period of the data and by combining the timestamp data in the classified data, and generating data to be stored corresponding to the data storage time;
and acquiring the system time of the current electric energy meter, and storing the data to be stored into the storage device when the system runs to the data storage time.
4. The data storage method for the electric energy meter according to claim 3, wherein the step of giving different data validity periods to each classified data according to different channels to which the classified data belong, determining data storage time according to the data validity periods and combining the timestamp data in the classified data, and generating the data to be stored corresponding to the data storage time comprises the following steps:
obtaining a channel to which sample data in classified data belongs, determining the grade of the channel, and determining the data validity period corresponding to the sample data according to the grade of the channel;
extracting time stamp data representing the data generation time in the classified data, and superposing a data validity period on the time stamp data to obtain a data storage time corresponding to the sample data;
and generating the data to be stored by taking the data storage time as an attribute and taking the sample data as the basis.
5. The data storage method for an electric energy meter according to claim 4, wherein the channel comprises: the channel 1 is used for transmitting voltage, current and frequency data; a channel 2 for transmitting active and reactive power; channel 3 for transmitting power factor; the channel 4 is used for transmitting active and inactive total electric energy; the channel 5 is used for transmitting four-quadrant reactive total electric energy; and a channel 6 for transmitting the current demand.
6. The data storage method for the electric energy meter according to claim 5, wherein the obtaining of the channel to which the sample data in the classified data belongs, determining the grade to which the channel belongs, and determining the data validity period corresponding to the sample data according to the grade of the channel comprise:
when the channels are the channel 1 and the channel 6, corresponding to a first grade, and the data validity period corresponding to the first grade is 1 min;
when the channels are the channel 2 and the channel 3, corresponding to a second level, the data validity period corresponding to the second level is 2 min;
and when the channels are the channel 4 and the channel 5, corresponding to a third level, and the data validity period corresponding to the third level is 5 min.
7. The data storage method for the electric energy meter according to claim 3, wherein the step of obtaining the system time of the current electric energy meter and storing the data to be stored into the storage device when the system time runs to the data storage time comprises the following steps:
acquiring the data storage time of data to be stored;
if the data storage time of at least one piece of data to be stored is the same, when the system of the electric energy meter runs to the data storage time, all the data to be stored corresponding to the data storage time are stored in the storage device.
8. A data storage method for an electric energy meter according to any of claims 1 to 7, characterized in that the method further comprises: the data is compressed.
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| CN108429657A (en) * | 2018-02-28 | 2018-08-21 | 新华三技术有限公司 | Packet sampling method, apparatus and message processor |
| CN108446077A (en) * | 2018-03-21 | 2018-08-24 | 华立科技股份有限公司 | Electric energy meter communication data storage method, device and electric energy meter |
| CN112256697A (en) * | 2020-10-14 | 2021-01-22 | 宁波三星医疗电气股份有限公司 | Method for managing data of power acquisition terminal |
| CN112328556A (en) * | 2020-10-16 | 2021-02-05 | 威胜集团有限公司 | Electric energy curve data storage method, electric energy meter and computer readable storage medium |
| CN113672610B (en) * | 2021-10-21 | 2022-02-15 | 支付宝(杭州)信息技术有限公司 | Graph database processing method and device |
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