CN112419698B - Electric energy meter data transmission method, system and device based on distribution line message specification - Google Patents
Electric energy meter data transmission method, system and device based on distribution line message specification Download PDFInfo
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Abstract
The invention discloses an electric energy meter data transmission method, system and device based on distribution line message specification, wherein the transmission method acquires stored data in a specified time period according to a reading instruction of a meter reading master station; reading the stored data according to the time sequence, and judging null values while reading each piece of stored data; the null value judgment comprises timestamp null value judgment, whether the difference value of the timestamp data of the current storage data and the timestamp data of the adjacent previous storage data is equal to the sampling time interval or not is judged, if so, the timestamp data of the current storage data is set to be a null value, and if not, the timestamp data of the current storage data is reserved; and sending the read stored data of the electric energy meter to a meter reading master station. By implementing the invention, the communication data is simplified and the transmission rate is improved.
Description
Technical Field
The invention relates to the field of power distribution, in particular to a method, a system and a device for transmitting electric energy meter data based on distribution line message specification.
Background
The DLMS communication protocol is an international communication protocol for peripheral equipment to read instrument data, and can be applied to data interaction of electric energy meters and peripheral equipment. The large data volume interaction of the electric energy meter and the peripheral equipment mainly comprises a settlement curve, an event curve and a load curve. The settlement curve mainly transmits data items related to electric energy consumption, such as forward active electric energy, reverse active electric energy, forward reactive electric energy, reverse reactive electric energy, forward apparent electric energy, reverse apparent electric energy and related rate electric energy of the electric quantity, after a 12-byte timestamp is calculated on each piece of data, the total length is generally not less than 200 bytes, and the total number is generally not less than 96; the event curve mainly transmits event-related data items, such as event codes, electric energy when an event occurs, voltage when an event occurs and the like, after a 12-byte timestamp is calculated for each piece of data, the total length is generally not less than 50 bytes, and the total number is generally not less than 500; the load curve transmits data items related to the quality of the power grid, such as ABC-phase instantaneous voltage, current, power and the like, after a 12-byte timestamp is calculated for each piece of data, the total length is generally not less than 50 bytes, and the total number is generally not less than 4320.
In order to ensure that the electricity selling system can know the electricity utilization condition of the user in real time, the peripheral equipment must acquire the data of the settlement curve, the event curve and the load curve of the electric energy meter within a short time, but the data transmission efficiency is low due to the huge data transmission quantity and the limitation of a standard DLMS protocol transmission format, and the data of the settlement curve, the event curve and the load curve of the electric energy meter cannot be acquired in real time.
Disclosure of Invention
Therefore, the technical problem to be solved by the present invention is to overcome the defects that the data transmission efficiency is slow and the data of the electric energy meter cannot be obtained in real time in the prior art, so as to provide a method, a system and a device for transmitting the data of the electric energy meter based on the distribution line message specification.
In order to achieve the purpose, the invention provides the following technical scheme:
in a first aspect, an embodiment of the present invention provides an electric energy meter data transmission method based on a distribution line message specification, which is applied to an electric energy meter, and includes: receiving a reading instruction of a meter reading master station, wherein the reading instruction comprises a designated time period, a captured object and a sampling time interval; acquiring storage data in the specified time period, wherein the storage data comprises timestamp data and capture data; reading the storage data according to the time sequence, and judging null values while reading each piece of storage data; the null value judgment comprises timestamp null value judgment, whether the difference value of the timestamp data of the current storage data and the timestamp data of the adjacent previous storage data is equal to the sampling time interval or not is judged, if so, the timestamp data of the current storage data is set to be a null value, and if not, the timestamp data of the current storage data is reserved; and sending the read stored data of the electric energy meter to a meter reading master station.
In one embodiment, the null determination further comprises a capture data null determination: and judging whether the capture data of the current storage data is equal to the capture data of the adjacent previous storage data, if so, setting the capture data of the current storage data to be a null value, and if not, retaining the capture data of the current storage data.
In a second aspect, an embodiment of the present invention provides an electric energy meter data transmission method based on a distribution line message specification, which is applied to a meter reading master station, and includes: sending a reading instruction to the electric energy meter according to a preset reading rule; receiving storage data sent by the electric energy meter, and when the timestamp data of the received storage data is null and/or the capture data is null, performing data restoration on the null: when the timestamp data of the stored data is a null value, acquiring the timestamp data of the adjacent previous stored data, determining the current timestamp data according to the sampling time interval, and updating the current timestamp data into the current stored data; and when the capture data of the storage data is null, acquiring the corresponding capture data of the adjacent previous storage data, and updating the capture data into the current storage data.
In a third aspect, an embodiment of the present invention provides an electric energy meter data transmission method based on a distribution line message specification, including: establishing communication connection between the electric energy meter and a meter reading master station by adopting the electric energy meter data interaction method in the first aspect or the second aspect of the embodiment of the invention; and starting the electric energy meter and the meter reading master station to transmit the data of the electric energy meter.
In a fourth aspect, an embodiment of the present invention provides an electric energy meter data transmission system based on a distribution line message specification, including: the meter reading system comprises a meter reading master station and at least one electric energy meter, wherein the meter reading master station sends a reading instruction to the electric energy meter according to a preset reading rule; the electric energy meter receives a reading instruction of a meter reading master station, wherein the reading instruction comprises a designated time period, a captured object and a sampling time interval; the electric energy meter acquires storage data in the specified time period, wherein the storage data comprises timestamp data and capture data; the electric energy meter reads the storage data according to the time sequence, and the null value judgment is carried out while reading each piece of storage data; the null value judgment comprises timestamp null value judgment, whether the difference value of the timestamp data of the current storage data and the timestamp data of the adjacent previous storage data is equal to the sampling time interval or not is judged, if so, the timestamp data of the current storage data is set to be a null value, and if not, the timestamp data of the current storage data is reserved; the null value judgment further comprises the following steps of: judging whether the capture data of the current storage data is equal to the capture data of the adjacent previous storage data, if so, setting the capture data of the current storage data to be a null value, and if not, retaining the capture data of the current storage data; the electric energy meter sends read electric energy meter storage data to a meter reading master station; the meter reading master station receives the stored data sent by the electric energy meter, and when the timestamp data of the received stored data is null and/or the captured data is null, the null is subjected to data reduction: when the timestamp data of the stored data is a null value, the meter reading master station acquires the timestamp data of the adjacent previous stored data, determines the current timestamp data according to the sampling time interval, and updates the current timestamp data into the current stored data; and when the capture data of the stored data is a null value, the meter reading master station acquires the corresponding capture data of the adjacent previous stored data and updates the capture data into the current stored data.
In a fifth aspect, an embodiment of the present invention provides an electric energy meter data transmission device based on a distribution line message specification, which is applied to an electric energy meter, and includes: the first receiving module is used for receiving a reading instruction of a meter reading master station, wherein the reading instruction comprises a designated time period, a captured object and a sampling time interval; the acquisition module is used for acquiring the storage data in the specified time period, and the storage data comprises timestamp data and capture data; the judging module is used for reading the storage data according to the time sequence and judging the null value while reading each piece of storage data; the first processing module is used for judging the null value, including timestamp null value judgment, judging whether the difference value between the timestamp data of the current storage data and the timestamp data of the adjacent previous storage data is equal to the sampling time interval or not, if so, setting the timestamp data of the current storage data to be the null value, and if not, keeping the timestamp data of the current storage data; the second processing module is used for judging the null value and also comprises the following steps of: judging whether the capture data of the current storage data is equal to the capture data of the adjacent previous storage data, if so, setting the capture data of the current storage data to be a null value, and if not, retaining the capture data of the current storage data; and the first sending module is used for sending the read electric energy meter storage data to the meter reading master station.
In a sixth aspect, an embodiment of the present invention provides an electric energy meter data transmission device based on a distribution line message specification, which is applied to a meter reading master station, and includes: the second sending module is used for sending a reading instruction to the electric energy meter according to a preset reading rule; the first updating module is used for receiving the storage data sent by the electric energy meter, and when the timestamp data of the received storage data is null and/or the capture data is null, the null is subjected to data restoration: when the timestamp data of the stored data is a null value, acquiring the timestamp data of the adjacent previous stored data, determining the current timestamp data according to the sampling time interval, and updating the current timestamp data into the current stored data; and the second updating module is used for acquiring the corresponding captured data of the adjacent previous piece of storage data and updating the captured data into the current storage data when the captured data of the storage data is null.
In a seventh aspect, an embodiment of the present invention provides a computer-readable storage medium, where the computer-readable storage medium stores computer instructions, where the computer instructions are configured to cause the computer to execute the method for transmitting electric energy meter data based on a distribution line message specification according to the first aspect, the second aspect, or the third aspect of the embodiment of the present invention.
In an eighth aspect, an embodiment of the present invention provides a computer device, including: the electric energy meter data transmission method based on the distribution line message specification comprises a memory and a processor, wherein the memory and the processor are connected with each other in a communication mode, the memory stores computer instructions, and the processor executes the computer instructions so as to execute the electric energy meter data transmission method based on the distribution line message specification according to the first aspect, the second aspect or the third aspect of the embodiment of the invention.
The technical scheme of the invention has the following advantages:
the electric energy meter data transmission method based on the distribution line message specification obtains the stored data in the specified time period according to the reading instruction of the meter reading master station; reading the stored data according to the time sequence, and judging null values while reading each piece of stored data; the null value judgment comprises timestamp null value judgment, whether the difference value of the timestamp data of the current storage data and the timestamp data of the adjacent previous storage data is equal to the sampling time interval or not is judged, if so, the timestamp data of the current storage data is set to be a null value, and if not, the timestamp data of the current storage data is reserved; and sending the read stored data of the electric energy meter to a meter reading master station. By judging whether the difference value between the timestamp data of the current stored data and the timestamp data of the previous adjacent stored data is equal to the sampling time interval or not, and under the condition that the difference value is equal to the sampling time interval, the timestamp data is simplified, electric energy meter stored data with empty timestamp data are sent to the meter reading master station, communication data can be simplified, and the transmission rate is improved.
According to the electric energy meter data transmission system based on the distribution line message specification, the electric energy meter obtains stored data in a specified time period according to a reading instruction of a meter reading master station; reading the stored data according to the time sequence, and judging null values while reading each piece of stored data; the null value judgment comprises timestamp null value judgment, whether the difference value of the timestamp data of the current storage data and the timestamp data of the adjacent previous storage data is equal to the sampling time interval or not is judged, if so, the timestamp data of the current storage data is set to be a null value, and if not, the timestamp data of the current storage data is reserved; and sending the read stored data of the electric energy meter to a meter reading master station. Whether the difference value between the timestamp data of the current stored data and the timestamp data of the previous adjacent stored data is equal to the sampling time interval or not is judged, the timestamp data is simplified under the condition that the difference value is equal to the sampling time interval, the electric energy meter stored data with the empty timestamp data is sent to the meter reading main station, communication data can be simplified, and the transmission rate is improved.
According to the electric energy meter data transmission device based on the distribution line message specification, the electric energy meter obtains stored data in a specified time period according to a reading instruction of a meter reading master station; reading the stored data according to the time sequence, and judging null values while reading each piece of stored data; the null value judgment comprises timestamp null value judgment, whether the difference value of the timestamp data of the current storage data and the timestamp data of the adjacent previous storage data is equal to the sampling time interval or not is judged, if so, the timestamp data of the current storage data is set to be a null value, and if not, the timestamp data of the current storage data is reserved; and sending the read stored data of the electric energy meter to a meter reading master station. Whether the difference value between the timestamp data of the current stored data and the timestamp data of the previous adjacent stored data is equal to the sampling time interval or not is judged, the timestamp data is simplified under the condition that the difference value is equal to the sampling time interval, the electric energy meter stored data with the empty timestamp data is sent to the meter reading main station, communication data can be simplified, and the transmission rate is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic view of an application scenario of a data transmission system of an electric energy meter according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a data transmission process in the electric energy meter data transmission system according to the embodiment of the invention;
FIG. 3 is a schematic diagram of an output result of unreduced timestamp data of the electric energy meter;
FIG. 4 is a schematic diagram of an output result of simplified timestamp data of the electric energy meter;
FIG. 5 is a simplified rate diagram of an output result of the electric energy meter simplified timestamp data;
FIG. 6 is another schematic diagram of a data transmission process in the electric energy meter data transmission system according to the embodiment of the invention;
FIG. 7 is a schematic diagram of an output result of the unreduced captured data of the electric energy meter;
FIG. 8 is a diagram illustrating the data output result after the data capture is simplified;
FIG. 9 is a simplified rate diagram of the data output results after the captured data is simplified;
FIG. 10 is a schematic diagram of an unreduced electric energy meter data frame and a simplified electric energy meter data frame;
FIG. 11 is a diagram of an electric energy meter data transmission device based on the distribution line message specification according to an embodiment of the present invention;
FIG. 12 is another schematic diagram of an electric energy meter data transmission device based on the distribution line message specification according to an embodiment of the present invention;
fig. 13 is a block diagram of a specific example of a computer device according to an embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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 invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be connected through the inside of the two elements, or may be connected wirelessly or through a wire. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Fig. 1 is a schematic view of an application scenario according to an embodiment of the present invention. The meter reading main station is in communication connection with the plurality of electric energy meters based on the distribution line message specification, and the meter reading main station performs data transmission with the plurality of electric energy meters to obtain electric energy meter data and display the electric energy meter data on a user interface. In the embodiment of the present invention, data transmission of an electric energy meter and a meter reading master station is specifically taken as an example for description, which is only taken as an example and is not limited thereto.
The embodiment of the invention provides an electric energy meter data transmission system based on distribution line message specification, which comprises: the meter reading system comprises a meter reading main station and at least one electric energy meter, wherein a data transmission process is shown in figure 2 and comprises the following steps:
step S10: and sending a reading instruction to the electric energy meter according to a preset reading rule.
In a specific embodiment, the meter reading master station sends a reading instruction according to a preset reading rule to obtain the data of the electric energy meter. The reading instruction comprises a designated time period, a capture object and a sampling time interval, namely the meter reading master station needs to acquire the electric energy meter data containing the designated capture object in the designated time period.
Step S11: and receiving a reading instruction of the meter reading master station, wherein the reading instruction comprises a designated time period, a captured object and a sampling time interval.
In one embodiment, the electric energy meter receives a reading instruction of the meter reading master station, and captures electric energy meter data according to a specified time period and a sampling time interval specified in the reading instruction.
Step S12: stored data is acquired for a specified time period, the stored data including timestamp data and captured data.
In a specific embodiment, a sampling device, a processor and a memory are arranged in the electric energy meter, wherein the sampling device is used for collecting data of the electric energy meter and sending the collected data of the electric energy meter to the memory. And the storage is used for storing the collected electric energy meter data to form the storage data of the electric energy meter. And the processor screens out the storage data containing the appointed capture object in the appointed time period from the memory according to the reading instruction of the meter reading master station, wherein the storage data comprises timestamp data and capture data. In the embodiment of the invention, the electric energy meter data and the storage data are data frames comprising time stamp data and capture data. The capture object comprises data items related to electric energy consumption, such as forward active electric energy, reverse active electric energy, forward reactive electric energy, reverse reactive electric energy, forward apparent electric energy, reverse apparent electric energy and related rate electric energy of the electric quantity; event-related data items such as an event code, electric energy when an event occurs, voltage when an event occurs, and the like; and (4) data items related to the quality of the power grid, such as ABC phase instantaneous voltage, current, power and the like. The meter reading master station acquires the data items related to the electric energy consumption within a period of time to obtain a settlement curve within the period of time, acquires the data items related to the event within the period of time to obtain an event curve within the period of time, and acquires the data items related to the power grid quality within the period of time to obtain a load curve within the period of time.
Step S13: and reading the stored data according to the time sequence, and judging the null value while reading each piece of stored data.
In a specific embodiment, the stored data in the electric energy meter memory are arranged in time sequence to form a stored data list as shown in fig. 3, and the null value judgment is performed on each stored data.
Step S14: and the null value judgment comprises timestamp null value judgment, whether the difference value between the timestamp data of the current storage data and the timestamp data of the adjacent previous storage data is equal to a sampling time interval or not is judged, if so, the timestamp data of the current storage data is set to be a null value, and if not, the timestamp data of the current storage data is reserved.
In a specific embodiment, the timestamp null judgment is to compare the difference between the timestamp data of the current stored data and the timestamp data of the previous stored data adjacent to the current stored data with the sampling time interval, and further judge whether to simplify the timestamp data or to retain the timestamp data of the current stored data. In the embodiment of the present invention, as can be seen from the stored data list shown in fig. 3, the timestamp data of the first piece of stored data is 2018.04.01/00:00, the timestamp data of the second piece of stored data is 2018.04.01/00:15, the timestamp data of the third piece of stored data is 2018.04.01/00:30, the timestamp data of the fourth piece of stored data is 2018.04.01/00:45, and the sampling time interval in the reading instruction of the meter reading master station is 15 minutes. The time stamp data of the first piece of stored data is the initial data, there is no adjacent previous piece of stored data, and the null determination cannot be performed, so the time stamp data thereof is retained, and the difference between the time stamp data of the second piece of stored data and the time stamp data of the first piece of stored data is 15 minutes, which is equal to the sampling time interval, so the time stamp data of the second piece of stored data is set as the null, and in this way, the time stamp data of the third piece of stored data and the time stamp data of the fourth piece of stored data are also set as the null, as shown in fig. 4.
When the electric energy meter is sampled, data acquisition is not carried out according to sampling time intervals sent by meter reading, for example, the timestamp data of the first piece of stored data is 2018.04.01/00:00, the timestamp data of the second piece of stored data is 2018.04.01/00:15, the timestamp data of the third piece of stored data is 2018.04.01/00:30, and the timestamp data of the fourth piece of stored data is 2018.04.01/00: 55. The sampling time interval is still 15 minutes, and at this time, the difference value between the timestamp data of the fourth stored data and the timestamp data of the third stored data is not equal to the sampling time interval, and at this time, the timestamp data of the fourth stored data needs to be reserved.
Step S15: and sending the read stored data of the electric energy meter to a meter reading master station.
In a specific embodiment, the electric energy meter reads the storage data in the storage according to one reading instruction and sends the storage data to the cache, and each time one storage data is read, the electric energy meter performs null value judgment once, if the difference value between the timestamp data of the current storage data and the timestamp data of the adjacent previous storage data is equal to the sampling time interval, the timestamp data of the current storage data is set to be a null value, and the storage data in the cache is packed and sent to the meter reading master station before the cache is full. The storage data with the blank timestamp data is sent to the meter reading master station by simplifying the timestamp mode, so that the communication data are simplified, and the transmission rate is improved. As shown in fig. 5, for a total of 4320 pieces of electric energy meter data, the data output reduction rate reaches 19.35% by means of time stamp reduction. If the difference value between the timestamp data of the current stored data and the timestamp data of the previous stored data is not equal to the sampling time interval, in order to ensure the integrity of the data of the electric energy meter, the timestamp data of the current stored data needs to be reserved, and the stored data with the timestamp data is sent to the meter reading master station.
According to the electric energy meter data transmission system based on the distribution line message specification, the electric energy meter obtains stored data in a specified time period according to a reading instruction of a meter reading master station; reading the stored data according to the time sequence, and judging null values while reading each piece of stored data; the null value judgment comprises timestamp null value judgment, whether the difference value of the timestamp data of the current storage data and the timestamp data of the adjacent previous storage data is equal to the sampling time interval or not is judged, if so, the timestamp data of the current storage data is set to be a null value, and if not, the timestamp data of the current storage data is reserved; and sending the read stored data of the electric energy meter to a meter reading master station. Whether the difference value between the timestamp data of the current stored data and the timestamp data of the previous adjacent stored data is equal to the sampling time interval or not is judged, the timestamp data is simplified under the condition that the difference value is equal to the sampling time interval, the electric energy meter stored data with the empty timestamp data is sent to the meter reading main station, communication data can be simplified, and the transmission rate is improved.
While the electric energy meter processes the timestamp data, in order to further simplify the communication data and improve the transmission rate, as shown in fig. 6, the electric energy meter also processes the captured data of the stored data, and the specific steps are as follows:
step S16: and judging whether the capture data of the current storage data is equal to the capture data of the adjacent previous storage data, if so, setting the capture data of the current storage data to be a null value, and if not, retaining the capture data of the current storage data.
In a specific embodiment, the stored data in the electric energy meter memory is arranged in time sequence to form a stored data list as shown in fig. 7, wherein the captured data of the stored data comprises: current value, power value and power factor value. Whether the current value, the power value and the power factor value of each piece of stored data are consistent with the current value, the power value and the power factor value of the previous piece of stored data adjacent to the current value, the power value and the power factor value of the stored data are judged in sequence according to the stored data list shown in fig. 7. And when the current value, the power value and the power factor value of the next adjacent piece of storage data are consistent with those of the previous piece of storage data, setting the capture data of the next piece of storage data as the empty capture data by simplifying the capture data mode. For example, when the user does not use electricity, as shown in fig. 7, the current value, the electric quantity value, the power value and the power factor value of the electric energy meter are the same in several capturing periods, as shown in fig. 8, by simplifying the current value, the electric quantity value, the power value and the power factor value, setting the captured data of the last several pieces of stored data as null captured data, and sending the stored data of the electric energy meter with the null captured data to the meter reading master station, communication data is simplified, and the transmission rate is improved. As shown in fig. 9, for a total of 500 pieces of electric energy meter data, the data output reduction rate reaches 46.15% by simplifying the manner of capturing data. When the captured data of the next adjacent piece of stored data is inconsistent with the captured data of the previous piece of stored data, the current value, the electric quantity value, the power value and the power factor value are continuously updated. At the moment, the current value, the electric quantity value, the power value and the power factor value cannot be simplified, and in order to ensure the integrity of the data of the electric energy meter, the capture data of the next piece of storage data needs to be reserved, and the storage data of the electric energy meter with the capture data is sent to the meter reading master station.
The data transmission process, as shown in fig. 6, further includes the following steps:
step S21: receiving storage data sent by the electric energy meter, and when the timestamp data of the received storage data is null and/or the capture data is null, performing data restoration on the null: and when the time stamp data of the stored data is a null value, acquiring the time stamp data of the adjacent previous stored data, determining the current time stamp data according to the sampling time interval, and updating the current time stamp data into the current stored data.
In a specific embodiment, the electric energy meter data received by the meter reading master station includes both the electric energy meter storage data with null timestamp data and the electric energy meter storage data with timestamp data. And the meter reading master station judges whether the stored data of the electric energy meter has null timestamp data or not through an internal processor. When the stored data of the electric energy meter contains the empty timestamp data, the meter reading master station calculates the current timestamp data according to the sampling time interval and the initial timestamp data, supplements the current timestamp data to the missing timestamp data in the stored data of the electric energy meter, and updates the empty timestamp data into the current timestamp data. And the meter reading master station judges whether the stored data of the electric energy meter contains the empty capture data or not through an internal processor.
Step S22: and when the capture data of the storage data is null, acquiring the corresponding capture data of the adjacent previous storage data, and updating the capture data into the current storage data.
In a specific embodiment, when it is determined that the stored data contains the empty capture data, the meter reading master station supplements the capture data of the previous stored data to the empty capture data, that is, updates the empty capture data to the capture data of the previous stored data. Fig. 10 is a schematic diagram of an unreduced electric energy meter data frame and a simplified electric energy meter data frame in an electric energy meter data transmission process based on a distribution line message specification.
The embodiment of the invention also provides an electric energy meter data transmission method based on the distribution line message specification, which is applied to the electric energy meter and comprises the following steps:
step S31: and receiving a reading instruction of the meter reading master station, wherein the reading instruction comprises a designated time period, a captured object and a sampling time interval. For details, refer to the related description of step S11 in the above embodiment, and are not described herein again.
Step S32: stored data is acquired for a specified time period, the stored data including timestamp data and captured data. For details, refer to the related description of step S12 in the above embodiment, and are not described herein again.
Step S33: and reading the stored data according to the time sequence, and judging the null value while reading each piece of stored data. For details, refer to the related description of step S13 in the above embodiment, and are not described herein again.
Step S34: and the null value judgment comprises timestamp null value judgment, whether the difference value between the timestamp data of the current storage data and the timestamp data of the adjacent previous storage data is equal to a sampling time interval or not is judged, if so, the timestamp data of the current storage data is set to be a null value, and if not, the timestamp data of the current storage data is reserved. For details, refer to the related description of step S14 in the above embodiment, and are not described herein again.
Step S35: and sending the read stored data of the electric energy meter to a meter reading master station. For details, refer to the related description of step S15 in the above embodiment, and are not described herein again.
The electric energy meter data transmission method based on the distribution line message specification obtains the stored data in the specified time period according to the reading instruction of the meter reading master station; reading the stored data according to the time sequence, and judging null values while reading each piece of stored data; the null value judgment comprises timestamp null value judgment, whether the difference value of the timestamp data of the current storage data and the timestamp data of the adjacent previous storage data is equal to the sampling time interval or not is judged, if so, the timestamp data of the current storage data is set to be a null value, and if not, the timestamp data of the current storage data is reserved; and sending the read stored data of the electric energy meter to a meter reading master station. By judging whether the difference value between the timestamp data of the current stored data and the timestamp data of the previous adjacent stored data is equal to the sampling time interval or not, and under the condition that the difference value is equal to the sampling time interval, the timestamp data is simplified, electric energy meter stored data with empty timestamp data are sent to the meter reading master station, communication data can be simplified, and the transmission rate is improved.
In an embodiment, the electric energy meter data transmission method based on the distribution line message specification further includes the following steps:
step S36: the null value judgment further comprises the following steps of: and judging whether the capture data of the current storage data is equal to the capture data of the adjacent previous storage data, if so, setting the capture data of the current storage data to be a null value, and if not, retaining the capture data of the current storage data. For details, refer to the related description of step S16 in the above embodiment, and are not described herein again.
The embodiment of the invention also provides an electric energy meter data transmission method based on the distribution line message specification, which is applied to a meter reading master station and comprises the following steps:
step S41: and sending a reading instruction to the electric energy meter according to a preset reading rule. For details, refer to the related description of step S10 in the above embodiment, and are not described herein again.
Step S42: receiving storage data sent by the electric energy meter, and when the timestamp data of the received storage data is null and/or the capture data is null, performing data restoration on the null: and when the time stamp data of the stored data is a null value, acquiring the time stamp data of the adjacent previous stored data, determining the current time stamp data according to the sampling time interval, and updating the current time stamp data into the current stored data. For details, refer to the related description of step S21 in the above embodiment, and are not described herein again.
Step S43: and when the capture data of the storage data is null, acquiring the corresponding capture data of the adjacent previous storage data, and updating the capture data into the current storage data. For details, refer to the related description of step S22 in the above embodiment, and are not described herein again.
The embodiment of the invention also provides an electric energy meter data transmission method, which comprises the following steps:
step S51: the communication connection between the electric energy meter and the meter reading master station is established by adopting the electric energy meter data transmission method provided by the embodiment of the invention.
In a specific embodiment, the meter reading master station establishes communication connection with a plurality of electric energy meters based on the distribution line message specification, and performs data transmission by adopting the electric energy meter data transmission method provided by the embodiment of the invention to read the meter.
Step S52: and starting the electric energy meter and the meter reading master station to transmit the data of the electric energy meter.
In a specific embodiment, when the data of the electric energy meter needs to be acquired, the electric energy meter and the meter reading master station are started to transmit the data of the electric energy meter, the electric energy meter sends the acquired data of the electric energy meter to the meter reading master station, and the meter reading master station displays a user interface according to the acquired data of the electric energy meter, so that the power consumption condition of a user can be monitored in real time.
The embodiment of the invention provides an electric energy meter data transmission device based on distribution line message specification, which is applied to an electric energy meter and comprises the following components:
the first receiving module 11 is configured to receive a reading instruction of the meter reading master station, where the reading instruction includes a specified time period, a captured object, and a sampling time interval. For details, refer to the related description of step S11 in the above embodiment, and are not described herein again.
And the acquisition module 12 is used for acquiring the stored data in a specified time period, wherein the stored data comprises time stamp data and captured data. For details, refer to the related description of step S12 in the above embodiment, and are not described herein again.
And the judging module 13 is configured to read the storage data according to the time sequence, and perform null judgment while reading each piece of storage data. For details, refer to the related description of step S13 in the above embodiment, and are not described herein again.
The first processing module 14 is configured to determine whether a difference between the timestamp data of the current stored data and the timestamp data of the previous adjacent stored data is equal to a sampling time interval, set the timestamp data of the current stored data to be a null value if the difference is equal to the sampling time interval, and keep the timestamp data of the current stored data if the difference is not equal to the sampling time interval. For details, refer to the related description of step S14 in the above embodiment, and are not described herein again.
The second processing module 15 is configured to perform the null value judgment further including a captured data null value judgment: judging whether the capture data of the current storage data is equal to the capture data of the adjacent previous storage data, if so, setting the capture data of the current storage data to be a null value, and if not, keeping the capture data of the current storage data. For details, refer to the related description of step S16 in the above embodiment, and are not described herein again.
And the first sending module 16 is configured to send the read stored data of the electric energy meter to the meter reading master station. For details, refer to the related description of step S15 in the above embodiment, and are not described herein again.
An embodiment of the present invention further provides an electric energy meter data transmission device based on the distribution line message specification, which is applied to a meter reading master station, and as shown in fig. 12, the electric energy meter data transmission device includes:
and the second sending module 10 is configured to send a reading instruction to the electric energy meter according to a preset reading rule. For details, refer to the related description of step S10 in the above embodiment, and are not described herein again.
The first updating module 21 is configured to receive storage data sent by the electric energy meter, and when timestamp data of the received storage data is null and/or capture data is null, perform data restoration on the null: and when the time stamp data of the stored data is a null value, acquiring the time stamp data of the adjacent previous stored data, determining the current time stamp data according to the sampling time interval, and updating the current time stamp data into the current stored data. For details, refer to the related description of step S21 in the above embodiment, and are not described herein again.
And the second updating module 22 is configured to, when the captured data of the storage data is null, obtain corresponding captured data of an adjacent previous piece of storage data, and update the captured data to the current piece of storage data. For details, refer to the related description of step S22 in the above embodiment, and are not described herein again.
According to the electric energy meter data transmission device based on the distribution line message specification, the electric energy meter obtains stored data in a specified time period according to a reading instruction of a meter reading master station; reading the stored data according to the time sequence, and judging null values while reading each piece of stored data; the null value judgment comprises timestamp null value judgment, whether the difference value of the timestamp data of the current storage data and the timestamp data of the adjacent previous storage data is equal to the sampling time interval or not is judged, if so, the timestamp data of the current storage data is set to be a null value, and if not, the timestamp data of the current storage data is reserved; and sending the read stored data of the electric energy meter to a meter reading master station. Whether the difference value between the timestamp data of the current stored data and the timestamp data of the previous adjacent stored data is equal to the sampling time interval or not is judged, the timestamp data is simplified under the condition that the difference value is equal to the sampling time interval, the electric energy meter stored data with the empty timestamp data is sent to the meter reading main station, communication data can be simplified, and the transmission rate is improved.
An embodiment of the present invention further provides a computer device, as shown in fig. 13, the device may include a processor 61 and a memory 62, where the processor 61 and the memory 62 may be connected by a bus or in another manner, and fig. 13 takes the connection by the bus as an example.
The processor 61 may be a Central Processing Unit (CPU). The Processor 61 may also be other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, or combinations thereof.
The memory 62, which is a non-transitory computer-readable storage medium, may be used to store non-transitory software programs, non-transitory computer-executable programs, and modules, such as the corresponding program instructions/modules in the embodiments of the present invention. The processor 61 executes various functional applications and data processing of the processor by running the non-transitory software programs, instructions and modules stored in the memory 62, that is, the electric energy meter data transmission method based on the distribution line message specification in the above method embodiment is implemented.
The memory 62 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created by the processor 61, and the like. Further, the memory 62 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory 62 may optionally include memory located remotely from the processor 61, and these remote memories may be connected to the processor 61 via a network. Examples of such networks include, but are not limited to, the internet, intranets, mobile communication networks, and combinations thereof.
One or more modules are stored in the memory 62, and when executed by the processor 61, perform the power meter data interaction method provided by the embodiment of the present invention or perform the power distribution line message specification-based power meter data transmission method provided by the embodiment of the present invention.
The details of the computer device can be understood by referring to the corresponding descriptions and effects in the embodiments shown in fig. 1-10, and are not described herein again.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program that can be stored in a computer-readable storage medium and that when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a Flash Memory (Flash Memory), a Hard Disk Drive (Hard Disk Drive, abbreviated as HDD), or a Solid State Drive (SSD); the storage medium may also comprise a combination of memories of the kind described above.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the spirit or scope of the invention.
Claims (8)
1. A data transmission method of an electric energy meter based on distribution line message specification is applied to the electric energy meter and is characterized by comprising the following steps:
receiving a reading instruction of a meter reading master station, wherein the reading instruction comprises a designated time period, a captured object and a sampling time interval;
acquiring storage data in the specified time period, wherein the storage data comprises timestamp data and capture data;
reading the storage data according to a time sequence, and judging a null value while reading each piece of storage data;
the null value judgment comprises timestamp null value judgment, whether the difference value of the timestamp data of the current storage data and the timestamp data of the adjacent previous storage data is equal to the sampling time interval or not is judged, if so, the timestamp data of the current storage data is set to be a null value, and if not, the timestamp data of the current storage data is reserved;
sending the read stored data of the electric energy meter to a meter reading master station;
the null value judgment further comprises the following steps of: and judging whether the capture data of the current storage data is equal to the capture data of the adjacent previous storage data, if so, setting the capture data of the current storage data to be a null value, and if not, retaining the capture data of the current storage data.
2. A method for transmitting electric energy meter data based on distribution line message specification is applied to a meter reading master station and is characterized by comprising the following steps:
sending a reading instruction to the electric energy meter according to a preset reading rule;
receiving storage data sent by the electric energy meter, and when the timestamp data of the received storage data is null and/or the capture data is null, performing data restoration on the null: when the timestamp data of the stored data is a null value, acquiring the timestamp data of the adjacent previous stored data, determining the current timestamp data according to the sampling time interval, and updating the current timestamp data into the current stored data;
and when the capture data of the storage data is null, acquiring the corresponding capture data of the adjacent previous storage data, and updating the capture data into the current storage data.
3. A method for transmitting electric energy meter data based on distribution line message specification is characterized by comprising the following steps:
establishing communication connection between the electric energy meter and a meter reading master station by adopting the electric energy meter data transmission method based on the distribution line message specification according to any one of claims 1-2;
and starting the electric energy meter and the meter reading master station to transmit the data of the electric energy meter.
4. The utility model provides an electric energy meter data transmission system based on distribution lines message standard which characterized in that includes: a meter reading main station and at least one electric energy meter, wherein,
the meter reading master station sends a reading instruction to the electric energy meter according to a preset reading rule;
the electric energy meter receives a reading instruction of a meter reading master station, wherein the reading instruction comprises a designated time period, a captured object and a sampling time interval;
the electric energy meter acquires storage data in the specified time period, wherein the storage data comprises timestamp data and capture data;
the electric energy meter reads the storage data according to the time sequence, and the null value judgment is carried out while reading each piece of storage data;
the null value judgment comprises timestamp null value judgment, whether the difference value of the timestamp data of the current storage data and the timestamp data of the adjacent previous storage data is equal to the sampling time interval or not is judged, if so, the timestamp data of the current storage data is set to be a null value, and if not, the timestamp data of the current storage data is reserved;
the null value judgment further comprises the following steps of: judging whether the capture data of the current storage data is equal to the capture data of the adjacent previous storage data, if so, setting the capture data of the current storage data to be a null value, and if not, retaining the capture data of the current storage data;
the electric energy meter sends read electric energy meter storage data to a meter reading master station;
the meter reading master station receives the stored data sent by the electric energy meter, and when the timestamp data of the received stored data is null and/or the captured data is null, the null is subjected to data reduction: when the timestamp data of the stored data is a null value, acquiring the timestamp data of the adjacent previous stored data, determining the current timestamp data according to the sampling time interval, and updating the current timestamp data into the current stored data;
and when the capture data of the stored data is a null value, the meter reading master station acquires the corresponding capture data of the adjacent previous stored data and updates the capture data into the current stored data.
5. The utility model provides an electric energy meter data transmission device based on distribution lines message is normative, is applied to the electric energy meter, its characterized in that includes:
the first receiving module is used for receiving a reading instruction of a meter reading master station, wherein the reading instruction comprises a designated time period, a captured object and a sampling time interval;
the acquisition module is used for acquiring the storage data in the specified time period, wherein the storage data comprises timestamp data and capture data;
the judging module is used for reading the storage data according to the time sequence and judging the null value while reading each piece of storage data;
the first processing module is used for judging the null value, including timestamp null value judgment, judging whether the difference value between the timestamp data of the current storage data and the timestamp data of the adjacent previous storage data is equal to the sampling time interval or not, if so, setting the timestamp data of the current storage data to be the null value, and if not, keeping the timestamp data of the current storage data;
the second processing module is used for judging the null value and also comprises the following steps of: judging whether the capture data of the current storage data is equal to the capture data of the adjacent previous storage data, if so, setting the capture data of the current storage data to be a null value, and if not, retaining the capture data of the current storage data;
and the first sending module is used for sending the read electric energy meter storage data to the meter reading master station.
6. The utility model provides an electric energy meter data transmission device based on distribution lines message standard, is applied to the master station of checking meter, its characterized in that includes:
the second sending module is used for sending a reading instruction to the electric energy meter according to a preset reading rule;
the first updating module is used for receiving the storage data sent by the electric energy meter, and when the timestamp data of the received storage data is null and/or the capture data is null, the null is subjected to data restoration: when the timestamp data of the stored data is a null value, acquiring the timestamp data of the adjacent previous stored data, determining the current timestamp data according to the sampling time interval, and updating the current timestamp data into the current stored data;
and the second updating module is used for acquiring the corresponding captured data of the adjacent previous piece of storage data and updating the captured data into the current storage data when the captured data of the storage data is null.
7. A computer-readable storage medium storing computer instructions for causing a computer to perform the method for transmitting power meter data based on distribution line message specification according to any one of claims 1 to 3.
8. A computer device, comprising: a memory and a processor, the memory and the processor being communicatively connected to each other, the memory storing computer instructions, and the processor executing the computer instructions to perform the method for transmitting electric energy meter data according to any one of claims 1 to 3 based on the specification of the electric power distribution line message.
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Address after: Zhengtai Instrument Measurement Industrial Park, No.1 Liangce Road, Beibaixiang Town, Leqing City, Wenzhou City, Zhejiang Province, 325603 Patentee after: ZHEJIANG CHINT INSTRUMENT & METER Co.,Ltd. Address before: 325603 Wenzhou Daqiao Industrial Park, Yueqing City, Wenzhou City, Zhejiang Province Patentee before: ZHEJIANG CHINT INSTRUMENT & METER Co.,Ltd. |