CN113009407A - Voltage event recording method and device of double-core intelligent electric meter and double-core intelligent electric meter - Google Patents

Voltage event recording method and device of double-core intelligent electric meter and double-core intelligent electric meter Download PDF

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CN113009407A
CN113009407A CN202110229939.5A CN202110229939A CN113009407A CN 113009407 A CN113009407 A CN 113009407A CN 202110229939 A CN202110229939 A CN 202110229939A CN 113009407 A CN113009407 A CN 113009407A
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voltage
event
real
time
threshold
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CN113009407B (en
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郭兴林
尹仕红
赵雪松
范小飞
潘深琛
陈佩茹
吴立春
安琪儿
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Shenzhen Power Supply Co ltd
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Shenzhen Power Supply Co ltd
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    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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    • G01R35/04Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current

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Abstract

The application relates to a voltage event recording method and device of a double-core intelligent electric meter, the double-core intelligent electric meter and a storage medium. The method comprises the following steps: the management unit of the double-core intelligent electric meter acquires real-time voltage data from the metering unit of the double-core intelligent electric meter; determining event state identification conditions corresponding to states of various voltage events; acquiring a current event state identifier of the double-core intelligent electric meter, and determining the real-time event state identifier of the double-core intelligent electric meter according to the current event state identifier, real-time voltage data and an event state identification condition; and if the real-time event state identification is different from the current event state identification, updating the current event state identification into the real-time event state identification, and recording the voltage event corresponding to the real-time event state identification. By adopting the method, the voltage event of the double-core intelligent ammeter can be accurately recorded.

Description

Voltage event recording method and device of double-core intelligent electric meter and double-core intelligent electric meter
Technical Field
The application relates to the technical field of electric energy metering, in particular to a voltage event recording method and device of a double-core intelligent electric meter, the double-core intelligent electric meter and a storage medium.
Background
With the development of the electric energy metering technology, the metering part and the non-metering part are used as an integrated design intelligent electric meter, when high and low voltage judgment and power failure statistics are carried out, the loss of relevant electric signal information caused by power failure of equipment is easily caused, and historical information cannot be obtained after power is supplied again, so that the integrated design intelligent electric meter cannot meet increasingly complex and variable metering requirements. Based on this, two core smart electric meters of new generation come to one's own accord, and two chips are adopted to two core smart electric meters of new generation, manage core and measurement core independent operation promptly, the structure of mutual isolation, consequently take place to have a power failure or voltage cross upper and lower time limit, also can read voltage data in real time through measuring the core, rethread management unit preserves.
However, the voltage event recording method for the electric meter cannot be applied to the double-core intelligent electric meter, and the voltage event of the double-core intelligent electric meter cannot be accurately recorded.
Disclosure of Invention
In view of the above, it is necessary to provide a voltage event recording method and apparatus for a two-core smart meter, a two-core smart meter and a storage medium.
A voltage event recording method of a two-core intelligent electric meter is applied to a management unit of the two-core intelligent electric meter, and comprises the following steps:
acquiring real-time voltage data from a metering unit of the double-core intelligent electric meter;
determining event state identification conditions corresponding to states of various voltage events;
acquiring a current event state identifier of the double-core intelligent electric meter, and determining the real-time event state identifier of the double-core intelligent electric meter according to the current event state identifier, real-time voltage data and the event state identification condition;
and if the real-time event state identification is different from the current event state identification, updating the current event state identification to the real-time event state identification, and recording a voltage event corresponding to the real-time event state identification.
In one embodiment, the voltage event comprises: a high voltage event; the event state identifies conditions including: a first voltage threshold for identifying an event state of the high voltage event, and a first duration threshold;
the determining the real-time event state identifier of the dual-core intelligent electric meter according to the current event state identifier, the real-time voltage data and the event state identification condition comprises the following steps:
when the current event state identifier is the end state identifier of the high-voltage event, comparing the real-time voltage data with the first voltage threshold;
if the real-time voltage data is greater than the first voltage threshold and the duration of the real-time voltage data greater than the first voltage threshold is greater than the first duration threshold, determining that the real-time event state identifier is the occurrence state identifier of the high-voltage event;
and/or
When the current event state identifier is the occurrence state identifier of the high-voltage event, comparing the real-time voltage data with the first voltage threshold;
and if the real-time voltage data is smaller than the first voltage threshold and the duration of the real-time voltage data smaller than the first voltage threshold is larger than the first duration threshold, determining that the real-time event state identifier is the end state identifier of the high-voltage event.
In one embodiment, the acquiring real-time voltage data from the metering unit of the two-core smart meter includes:
continuously acquiring a plurality of real-time voltage data from the metering unit according to a preset time interval;
before the determining that the real-time event status identifier is the occurrence status identifier of the high-voltage event, the method further includes:
acquiring the data number of continuous real-time voltage data which is greater than the first voltage threshold, and if the data number is greater than a preset first number threshold, determining that the duration of the real-time voltage data which is greater than the first voltage threshold is greater than the first duration threshold;
before determining that the real-time event status flag is the end status flag of the high-voltage event, the method further includes:
and acquiring the data number of the continuous real-time voltage data smaller than the first voltage threshold, and if the data number is larger than the first number threshold, determining that the duration of the real-time voltage data smaller than the first voltage threshold is larger than the first duration threshold.
In one embodiment, the voltage event comprises: a low voltage event; the event state identifies a condition, further comprising: a second voltage threshold for identifying an event state of the low voltage event, and a second duration threshold;
the determining the real-time event state identifier of the dual-core intelligent electric meter according to the current event state identifier, the real-time voltage data and the event state identification condition comprises the following steps:
when the current event state identifier is the ending state identifier of the low-voltage event, comparing the real-time voltage data with the second voltage threshold;
if the real-time voltage data is smaller than the second voltage threshold and the duration of the real-time voltage data smaller than the second voltage threshold is larger than the second duration threshold, determining that the real-time event state identifier is the occurrence state identifier of the low-voltage event;
and/or
When the current event state identifier is the occurrence state identifier of the low-voltage event, comparing the real-time voltage data with the second voltage threshold;
and if the real-time voltage data is greater than the second voltage threshold and the duration of the real-time voltage data greater than the second voltage threshold is greater than the second duration threshold, determining that the real-time event state identifier is the ending state identifier of the low-voltage event.
In one embodiment, the acquiring real-time voltage data from the metering unit of the two-core smart meter includes:
continuously acquiring a plurality of real-time voltage data from the metering unit according to a preset time interval;
before the determining that the real-time event status identifier is the occurrence status identifier of the low-voltage event, the method further includes:
acquiring the number of continuous real-time voltage data smaller than the second voltage threshold, and if the number of the continuous real-time voltage data is larger than a preset second number threshold, determining that the duration of the real-time voltage data smaller than the second voltage threshold is larger than the second duration threshold;
before determining that the real-time event status flag is the end status flag of the low-voltage event, the method further includes:
and acquiring the data number of the continuous real-time voltage data which is greater than the second voltage threshold, and if the data number is greater than a preset second number threshold, determining that the duration of the real-time voltage data which is greater than the second voltage threshold is greater than the second duration threshold.
In one embodiment, before acquiring the real-time voltage data from the metering unit of the two-core smart meter, the method further includes:
and carrying out power-on initialization on the double-core intelligent electric meter, and setting the current event state identifier of the voltage event as an ending state identifier.
In one embodiment, the management unit of the double-core intelligent electric meter carries an event record application;
after the double-core intelligent electric meter is powered on and initialized, the method further comprises the following steps:
creating, by a main thread of the event logging application, a voltage event logging thread for logging voltage events;
the recording of the voltage event corresponding to the real-time event state identifier includes:
and recording a voltage event corresponding to the real-time event state identification through the voltage event recording thread.
A voltage event recording device of a double-core intelligent electric meter is applied to a management unit of the double-core intelligent electric meter, and comprises the following components:
the real-time voltage acquisition module is used for acquiring real-time voltage data from a metering unit of the double-core intelligent electric meter;
the identification condition determining module is used for determining event state identification conditions corresponding to states of various voltage events;
the real-time identification acquisition module is used for acquiring a current event state identification of the double-core intelligent electric meter and determining the real-time event state identification of the double-core intelligent electric meter according to the current event state identification, the real-time voltage data and the event state identification condition;
and the voltage event recording module is used for updating the current event state identifier into the real-time event state identifier and recording a voltage event corresponding to the real-time event state identifier if the real-time event state identifier is different from the current event state identifier.
A double-core intelligent ammeter comprises a memory and a processor, wherein the memory stores a computer program, and the processor realizes the steps of the method when executing the computer program.
A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the above-mentioned method.
According to the voltage event recording method and device of the double-core intelligent electric meter, the double-core intelligent electric meter and the storage medium, real-time voltage data are obtained from the metering unit of the double-core intelligent electric meter through the management unit of the double-core intelligent electric meter; determining event state identification conditions corresponding to states of various voltage events; acquiring a current event state identifier of the double-core intelligent electric meter, and determining the real-time event state identifier of the double-core intelligent electric meter according to the current event state identifier, real-time voltage data and an event state identification condition; and if the real-time event state identification is different from the current event state identification, updating the current event state identification into the real-time event state identification, and recording the voltage event corresponding to the real-time event state identification. The management unit through two-core smart electric meter can be according to the incident state recognition condition of setting for this application to and obtain the voltage event that real-time voltage data confirms to correspond from two-core smart electric meter's metering unit, thereby realize the accurate record to two-core smart electric meter's voltage event.
Drawings
FIG. 1 is a diagram illustrating an exemplary embodiment of a voltage event logging method for a two-core smart meter;
FIG. 2 is a schematic flow chart illustrating a voltage event recording method of the two-core smart meter according to an embodiment;
FIG. 3 is a schematic diagram of a process for determining a real-time event status flag of the two-core smart meter according to an embodiment;
FIG. 4 is a schematic diagram illustrating a process of determining a real-time event status flag of the two-core smart meter according to another embodiment;
FIG. 5 is a schematic diagram of a high-low voltage event recording framework of a two-core smart meter in an application example;
FIG. 6 is a schematic flow chart of a high-low voltage event recording implementation of the two-core intelligent ammeter in an application example;
FIG. 7 is a block diagram of a voltage event recorder of the two-core smart meter in one embodiment;
fig. 8 is an internal structural view of the two-core smart meter in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The voltage event recording method of the double-core intelligent electric meter can be applied to the application environment shown in fig. 1. Fig. 1 may be a schematic structural diagram of a two-core smart meter, which is composed of a management unit 101 and a metering unit 102, wherein the management unit 101 and the metering unit 102 of the two-core smart meter are in communication connection. Specifically, the metering unit 102 may meter the voltage data in real time and provide the resulting real-time data to the management unit 101. The management unit 101 may obtain the real-time event status identifier based on the real-time voltage data measured by the measurement unit 102, and the event status recognition condition and the current event status identifier pre-stored by the management unit 101, so as to implement real-time update of the real-time event status identifier and real-time recording of the voltage event corresponding to the identifier. The management unit 101 may be a management core of a two-core smart meter, and the metering unit 102 may be a metering core of the two-core smart meter.
In one embodiment, as shown in fig. 2, a voltage event recording method for a two-core smart meter is provided, which is described by taking the method as an example applied to the management unit 101 in fig. 1, and includes the following steps:
in step S201, the management unit 101 obtains real-time voltage data from the metering unit 102 of the two-core smart meter.
The metering unit 102 of the double-core intelligent electric meter is a unit module for realizing the metering function of the electric meter, the metering unit 102 can read the voltage data of the current electric meter in real time to serve as real-time voltage data, and the obtained real-time voltage data is pushed to the management unit 101 in a communication mode with the management unit 101, so that the management unit 101 can read the real-time voltage data collected by the metering unit 102 in real time.
In step S202, the management unit 101 determines an event state identification condition corresponding to the state in which each type of voltage event is present.
The voltage event refers to an event occurring in a voltage state where the two-core smart meter is located, the type of the voltage event may include multiple types, for example, the voltage event may be a high voltage event used for describing that the smart meter is in a high voltage state, or a low voltage event where the smart meter is in a low voltage state, and the management unit 101 may implement storage of data of the high voltage state and the low voltage state in an event recording manner, for example, the data may include a real-time voltage value corresponding to the high voltage event or the low voltage event, or occurrence time and end time of the voltage event, and the like. The voltage event state refers to the states of the high voltage event and the low voltage event, and the event state identification condition refers to a condition for distinguishing the states of the high voltage event and the low voltage event. For example, when the voltage is higher than a certain voltage value, the management unit 101 may define that the high voltage event is in the occurrence state, and the voltage higher than the certain voltage value may be an event state identification condition for identifying the state in which the high voltage event is in.
Specifically, the event state identification condition may be stored in the management unit 101 of the two-core smart meter in advance, and when the management unit 101 obtains the real-time voltage data from the metering unit 102, the event state identification condition of the state where each type of voltage event is stored in advance may be determined, and the state where the corresponding voltage event of the two-core smart meter is located may be determined by using the event state identification condition.
Step S203, the management unit 101 obtains the current event status identifier of the dual-core smart meter, and determines the real-time event status identifier of the dual-core smart meter according to the current event status identifier, the real-time voltage data, and the event status identification condition.
The current event state identifier is a state identifier used for describing a state of a current voltage event of the two-core smart meter, for example, the identifier 1 may indicate that the current voltage event is in an occurrence state, the identifier 0 may indicate that the current voltage event is in an end state, the current event state identifier may be a state identifier pre-stored in the management unit 101, and the real-time event state identifier is an event state identifier obtained by the management unit 101 in real time according to real-time voltage data.
Specifically, the management unit 101 may read a pre-stored current event status identifier, and determine the real-time event status identifier of the two-core smart meter based on the current event status identifier, the real-time voltage data obtained in step S201, and the event status identification condition obtained in step S202.
In step S204, if the real-time event status identifier is different from the current event status identifier, the management unit 101 updates the current event status identifier to the real-time event status identifier, and records a voltage event corresponding to the real-time event status identifier.
Finally, if the real-time event status flag recognized by the management unit 101 is different from the pre-stored current event status flag, that is, the occurrence status of the high-voltage event may be changed to the end status of the high-voltage event, or the occurrence status of the high-voltage event may be changed to the occurrence status of the low-voltage event, and so on, as long as the real-time event status flag is different from the current event status flag, the management unit 101 may perform an update operation of updating the current event status flag to the real-time event status flag, and record the voltage event corresponding to the real-time event status flag, where the content of the recorded voltage event may be a real-time voltage value when the voltage event occurs, an occurrence time, or a real-time voltage value and an end time when the voltage event ends, and so on.
In the voltage event recording method of the double-core intelligent electric meter, a management unit 101 of the double-core intelligent electric meter acquires real-time voltage data from a metering unit 102 of the double-core intelligent electric meter; determining event state identification conditions corresponding to states of various voltage events; acquiring a current event state identifier of the double-core intelligent electric meter, and determining the real-time event state identifier of the double-core intelligent electric meter according to the current event state identifier, real-time voltage data and an event state identification condition; and if the real-time event state identification is different from the current event state identification, updating the current event state identification into the real-time event state identification, and recording the voltage event corresponding to the real-time event state identification. According to the method and the device, the management unit 101 of the double-core intelligent electric meter can identify conditions according to the set event state, and the real-time voltage data is obtained from the metering unit 102 of the double-core intelligent electric meter to determine the corresponding voltage event, so that the voltage event of the double-core intelligent electric meter can be accurately recorded.
In one embodiment, the voltage event comprises: a high voltage event; event state identification conditions, including: a first voltage threshold for identifying an event state of a high voltage event, and a first duration threshold; as shown in fig. 3, step S203 may further include:
in step S301, when the current event status identifier is the end status identifier of the high voltage event, the management unit 101 compares the real-time voltage data with the first voltage threshold.
The first voltage threshold is a voltage threshold used for measuring whether the voltage value of the two-core smart electric meter is a high voltage, and when the current event state identifier stored in the management unit 101 in advance is the end state identifier of the high voltage event, the management unit 101 may compare the real-time voltage data with the preset first voltage threshold.
In step S302, if the real-time voltage data is greater than the first voltage threshold and the duration that the real-time voltage data is greater than the first voltage threshold is greater than the first duration threshold, the management unit 101 determines that the real-time event status flag is the occurrence status flag of the high-voltage event.
The first duration threshold is a time threshold used for measuring whether the corresponding duration of the two-core smart meter meets the duration required by the high voltage event or not when the voltage value of the two-core smart meter meets the high voltage. In step S301, the management unit 101 obtains the real-time voltage data and the first voltage threshold, and only when the real-time voltage data is greater than the set first voltage threshold and the duration that the real-time voltage data is greater than the set first voltage threshold is also greater than the first duration threshold, the management unit 101 determines that the real-time event status flag is the occurrence status flag of the high-voltage event. If the duration time is less than the first duration time threshold, the management unit 101 determines that the real-time event status flag still remains as the end status flag of the high voltage event.
For example, a preset first voltage threshold may be set to 10KV, while a first duration threshold may be set to 5 seconds, if the current event status identifier stored in advance by the management unit 101 at this time is the ending status identifier of the high voltage event, and the real-time voltage data obtained by the management unit 101 is 11KV, that is, greater than the first voltage threshold, the management unit 101 may further count whether the duration that the real-time voltage data is greater than the first voltage threshold is greater than the set first duration threshold for 5 seconds, if the real-time voltage data is greater than the first voltage threshold for 5 seconds continuously, the management unit 101 may determine that the real-time event status identifier is the occurrence status identifier of the high voltage event, and if the duration is less than the first duration threshold, for example, if only 3 seconds of the real-time voltage data continues, then returns to the status lower than 10KV, the management unit 101 determines that the real-time event status flag remains as the end status flag of the high voltage event.
In addition, step S203 may further include: when the current event status identifier is the occurrence status identifier of the high voltage event, the management unit 101 compares the real-time voltage data with a first voltage threshold; and if the real-time voltage data is smaller than the first voltage threshold and the duration of the real-time voltage data smaller than the first voltage threshold is larger than the first duration threshold, determining that the real-time event state identifier is the ending state identifier of the high-voltage event.
Similarly, if the current event status identifier stored in the management unit 101 is the occurrence status identifier of the high voltage event, the management unit 101 may also compare the real-time voltage data with the first voltage threshold, if the real-time voltage data is smaller than the first voltage threshold, that is, the obtained real-time voltage data does not belong to the high voltage, the duration that the real-time voltage data is smaller than the first voltage threshold may be further counted, and if the duration is greater than the first duration threshold, that is, after the state that the real-time voltage data does not belong to the high voltage has been maintained for a period of time, the management unit 101 may determine that the real-time event status identifier is converted into the end status identifier of the high voltage event.
Further, step S201 may further include: the management unit 101 continuously acquires a plurality of real-time voltage data from the metering unit 102 according to a preset time interval; before the management unit 101 determines that the real-time event status identifier is the occurrence status identifier of the high-voltage event in step S302, the method may further include: the management unit 101 obtains the number of data of the continuous real-time voltage data larger than the first voltage threshold, and if the number of data is larger than a preset first number threshold, it is determined that the duration of the real-time voltage data larger than the first voltage threshold is larger than the first duration threshold.
The preset time interval refers to a time interval during which the management unit 101 reads the real-time voltage data from the metering unit 102, and in this embodiment, the real-time voltage data read by the management unit 101 is not a continuous piece of real-time voltage data, but is composed of a plurality of discrete real-time voltage data, for example, a plurality of real-time voltage data may be continuously read from the metering unit 102 at a certain time interval by setting a timer. Then, the management unit 101 may compare each obtained real-time voltage data with the first voltage threshold, count the number of data in which the continuous real-time voltage data is greater than the first voltage threshold, and compare the number of data with a preset first number threshold, where the first number threshold may be obtained according to a first duration threshold that needs to be set and a time interval during which the management unit 101 collects the real-time voltage data, and if the number of data is greater than the first number threshold, it may be determined that the duration during which the real-time voltage data is greater than the first voltage threshold is greater than the first duration threshold.
For example, the first duration threshold needs to be set to 5 seconds, if the time interval for the management unit 101 to acquire the real-time voltage data from the metering unit 102 is 1 second, the first number threshold may be set to 5, when 5 consecutive real-time voltage data obtained by the management unit 101 are greater than the first voltage threshold, it may be determined that the duration that the real-time voltage data are greater than the first voltage threshold is greater than the first duration threshold, and if only 4 consecutive real-time voltage data are greater than the first voltage threshold, it may be determined that the duration that the real-time voltage data are greater than the first voltage threshold is less than the first duration threshold.
In addition, before the management unit 101 determines that the real-time event status flag is the occurrence status flag of the high-voltage event, the method may further include: the management unit 101 obtains the number of data of the continuous real-time voltage data smaller than the first voltage threshold, and if the number of data is larger than the first number threshold, determines that the duration of the real-time voltage data smaller than the first voltage threshold is larger than the first duration threshold.
When the current event status identifier is the end status identifier of the high voltage event, the management unit 101 determines whether the duration of the real-time voltage data smaller than the first voltage threshold is greater than a first duration threshold, or may determine whether the duration of the real-time voltage data smaller than the first voltage threshold is greater than the first duration threshold by comparing the first number threshold, and by counting the number of the data of the real-time voltage data smaller than the first voltage threshold continuously and determining whether the duration of the real-time voltage data smaller than the first voltage threshold is greater than the first duration threshold according to a size relationship between the number of the data and the first number threshold, if the number of the data is greater than the first number threshold, it may be determined that the duration is greater than the first duration threshold.
In the above embodiment, the management unit 101 may obtain the real-time event status identifier of the high-voltage event according to the current event status identifier, the size relationship between the real-time voltage data and the first voltage threshold, and the size relationship between the duration of the size relationship and the first duration threshold, so as to improve the accuracy of the recorded high-voltage event, and meanwhile, the real-time voltage data may be acquired according to discrete data obtained at a preset time interval, and when comparing the size relationship between the duration and the first duration threshold, the real-time event status identifier may be converted into a size relationship between the number of consecutive occurrences of the size relationship and the first number threshold, so as to improve the accuracy of the management unit 101 in recording the high-voltage event.
In one embodiment, the voltage event comprises: a low voltage event; the event state identifies a condition, further comprising: a second voltage threshold for identifying an event state of a low voltage event, and a second duration threshold; as shown in fig. 4, step S203 may further include:
in step S401, when the current event status identifier is the ending status identifier of the low voltage event, the management unit 101 compares the real-time voltage data with the second voltage threshold.
The second voltage threshold is a voltage threshold used for measuring whether the voltage value of the two-core smart electric meter is a low voltage, and when the current event state identifier stored in the management unit 101 in advance is the end state identifier of the low voltage event, the management unit 101 may compare the real-time voltage data with the preset second voltage threshold.
In step S402, if the real-time voltage data is smaller than the second voltage threshold and the duration of the real-time voltage data smaller than the second voltage threshold is greater than the second duration threshold, the management unit 101 determines that the real-time event status flag is the occurrence status flag of the low-voltage event.
The second duration threshold is a time threshold for measuring whether the corresponding duration of the two-core smart meter satisfies the duration required by the low voltage event when the voltage value of the two-core smart meter satisfies the low voltage. In step S301, the management unit 101 obtains the real-time voltage data and the second voltage threshold, and only when the real-time voltage data is smaller than the set second voltage threshold and the duration of the real-time voltage data smaller than the set second voltage threshold is also greater than the second duration threshold, the management unit 101 determines that the real-time event status flag is the occurrence status flag of the low-voltage event. If the duration time is less than the second duration time threshold, the management unit 101 determines that the real-time event status flag still remains as the end status flag of the low-voltage event.
In addition, step S203 may further include: when the current event status identifier is the occurrence status identifier of the low voltage event, the management unit 101 compares the real-time voltage data with a second voltage threshold; and if the real-time voltage data is greater than the second voltage threshold and the duration of the real-time voltage data greater than the second voltage threshold is greater than the second duration threshold, determining that the real-time event state identifier is the ending state identifier of the low-voltage event.
Similarly, if the current event status identifier stored in the management unit 101 is the occurrence status identifier of the low voltage event, the management unit 101 may also compare the real-time voltage data with the second voltage threshold, if the real-time voltage data is greater than the second voltage threshold, that is, the obtained real-time voltage data does not belong to the low voltage, the duration that the real-time voltage data is greater than the second voltage threshold may also be further counted, and if the duration is greater than the second duration threshold, that is, after the state that the real-time voltage data does not belong to the low voltage has been maintained for a period of time, the management unit 101 may determine that the real-time event status identifier is converted into the end status identifier of the low voltage event.
Further, step S201 may further include: the management unit 101 continuously acquires a plurality of real-time voltage data from the metering unit 102 according to a preset time interval; before the management unit 101 determines that the real-time event status flag is the occurrence status flag of the low-voltage event in step S402, the method may further include: the management unit 101 obtains the number of data of the continuous real-time voltage data smaller than the second voltage threshold, and if the number of data is larger than a preset second number threshold, it is determined that the duration of the real-time voltage data smaller than the second voltage threshold is larger than the second duration threshold.
The preset time interval refers to a time interval at which the management unit 101 reads real-time voltage data from the metering unit 102, and in this embodiment, the management unit 101 may continuously read a plurality of real-time voltage data from the metering unit 102 at a certain time interval. Then, the management unit 101 may compare each obtained real-time voltage data with a second voltage threshold, count the number of data in which the continuous real-time voltage data is smaller than the second voltage threshold, and compare the number of data with a preset second number threshold, where the second number threshold may be obtained according to a second duration threshold that needs to be set and a time interval during which the management unit 101 collects the real-time voltage data, and if the number of data is greater than the second number threshold, it may be determined that the duration during which the real-time voltage data is smaller than the second voltage threshold is greater than the second duration threshold.
In addition, before the management unit 101 determines that the real-time event status identifier is the end status identifier of the low-voltage event, the method may further include: the management unit 101 obtains the number of data of the continuous real-time voltage data greater than the second voltage threshold, and if the number of data is greater than a preset second number threshold, it is determined that the duration of the real-time voltage data greater than the second voltage threshold is greater than the second duration threshold.
When the current event status identifier is the end status identifier of the low voltage event, the management unit 101 determines whether the duration of the real-time voltage data greater than the second voltage threshold is greater than the second duration threshold, or may determine whether the duration of the real-time voltage data greater than the second voltage threshold is greater than the second duration threshold by comparing the second number threshold, and by counting the number of the data of the real-time voltage data greater than the second voltage threshold continuously, and determining whether the duration of the real-time voltage data greater than the second voltage threshold is greater than the second duration threshold according to a size relationship between the number of the data and the second number threshold, if the number of the data is greater than the second number threshold, it may be determined that the duration is greater than the second duration threshold.
In the above embodiment, the management unit 101 may obtain the real-time event status identifier of the low-voltage event according to the current event status identifier, the size relationship between the real-time voltage data and the second voltage threshold, and the size relationship between the duration of the size relationship and the second duration threshold, so as to improve the accuracy of the recorded low-voltage event, and meanwhile, the real-time voltage data may be acquired according to discrete data obtained at a preset time interval, and when comparing the size relationship between the duration and the second duration threshold, the real-time event status identifier may be converted into a size relationship between the number of consecutive occurrences of the size relationship and the second number threshold, so as to improve the accuracy of the management unit 101 in recording the low-voltage event.
In one embodiment, before step S201, the method may further include: the management unit 101 performs power-on initialization on the two-core smart electric meter, and sets the current event status flag of the voltage event as the ending status flag.
In addition, when the dual-core smart meter is powered on for use, the management unit 101 is further required to power on and initialize the dual-core smart meter, and set the current event status flag of the voltage event as the ending status flag of the voltage event. Specifically, when the electric meter is initialized at power-on, the management unit 101 may read an event status identifier of a voltage event during power-off saving, and if the event status identifier is that the voltage event occurs, the identifier needs to be forcibly set to an end state of the voltage event as a current event status identifier of the two-core smart electric meter during power-on initialization.
In addition, the management unit 101 of the double-core intelligent electric meter carries an event record application; after the management unit 101 performs power-on initialization on the two-core smart electric meter, the method may further include: the management unit 101 creates a voltage event recording thread for recording voltage events through a main thread of an event recording application; step S204 may further include: the management unit 101 records the voltage event corresponding to the real-time event status identifier through the voltage event recording thread.
The event recording application is an application program used for performing certain actions or generating certain faults to record data in the operation process of the double-core intelligent electric meter. The event recording application can be implemented in the management unit 101, and interacts with the metering unit 102 and other applications of the management unit 101 to implement the action recording of each module function of each meter application. After the management unit 101 powers on and initializes the two-core smart electric meter, the main thread of the event recording application may create an event thread, that is, a voltage event recording thread, for recording a voltage event, through the main thread, and when the voltage event needs to be recorded, the management unit 101 may complete recording of the voltage event by using the voltage event recording thread instead of directly performing recording of the voltage event through the main thread.
In the above embodiment, after the dual-core smart meter is powered on and initialized, the management unit 101 may set the current event status identifier of the voltage event as the ending status identifier, so as to ensure accurate operation of the voltage event record after the dual-core smart meter is powered on and initialized.
In an application example, a method for realizing the recording of high-low voltage events of the double-core intelligent ammeter management unit is further provided, the high-low voltage events belong to the event recording function of the software system application layer of the ammeter management unit, and the occurrence time, the end time and the voltage value of the 10 latest high-voltage/low-voltage events can be recorded. The main functions of the specific implementation can include: when the time accumulation of the voltage amplitude of the electric energy meter higher than the set value exceeds the set time, recording the voltage amplitude as a high voltage event, and recording the occurrence time, the end time and the voltage value of the 10 latest high voltage events; when the time when the voltage amplitude of the electric energy meter is lower than the set value is accumulated and exceeds the specified time, the low-voltage event is recorded, and the occurrence time, the end time and the voltage value of the low-voltage event of the last 10 times can be recorded.
The overall architecture of the high-low voltage event record is shown in fig. 5, and is mainly used for acquiring real-time data pushed by the metering management service every second, and judging and recording the high-low voltage event according to a voltage value in the real-time data and a threshold value and an accumulated time value set through the communication module.
Furthermore, in the application of the basic function, the communication module is responsible for analyzing the control code and the data identifier and calling a read-write operation interface provided by the event recording module.
Reading: the total number of high (low) voltage events, the last 1-the last 10 high (low) voltage event records, the high (low) voltage event check value and the high (low) voltage event specified time value.
Setting: the high (low) voltage event assessment value and the high (low) voltage event specified time value.
The operation is as follows: and the event recording module is used for recording the total clear of the events and clearing the high (low) voltage events in terms of items.
In addition, the operation steps of the high-low voltage event recording process may specifically include, as shown in fig. 6:
step 1, after the electric energy meter is powered on, an event recording thread is established by a main thread;
step 2, after the event recording thread is started, judging and creating a working directory, and initializing relevant parameters (mainly threshold values and initial states of all events) of the event record
Step 3, waiting for a signal that the time-sharing metering module normally operates (when event recording processing needs to be carried out, the used real-time data is accurate and effective);
step 4, after obtaining the message that the time-sharing measurement has normally run, establishing a timer task (the time delay is 1 second for starting, the timer period is 1 second, the timer task sends a message to the event recording thread every second), sending a second message and waiting;
step 5, an event recording thread acquires a voltage value pushed by the metering management service every second;
and 6, comparing the pushed voltage value with a set threshold value in real time, judging whether the time exceeds a specified time, and judging and processing the event record.
In step 6, comparing the pushed voltage value with a set threshold in real time, determining whether the time exceeds a specified time, and performing event recording determination and processing, which may be specifically divided into two parts, namely processing a high (low) voltage event during power-on initialization and processing a high (low) voltage event during normal operation, specifically as follows:
(1) when the electricity meter is electrified and initialized, reading a high (low) voltage event state word stored in power failure, if the state word is generated, forcibly writing the event to end, and artificially filling 0 in the voltage value in the event.
(2) In normal operation, the module first reads the high (low) voltage threshold, the high (low) voltage for a specified time, and reads the status word for the high (low) voltage event every second.
If the current state word is end and the real-time voltage value read by the high (low) voltage event is higher (lower) than the judgment threshold value, adding 1 to the time count value; and if the time is lower (higher) than the judgment threshold value, the time count value is cleared. When the time count value is larger than the specified time value, a high (low) voltage writing event occurs, the occurrence frequency is increased by 1, and a current state word and an active reporting state word are set.
If the current state word is generated, the real-time voltage value read by the high (low) voltage event is lower (higher) than the judgment threshold value, and the time count value is increased by 1; if the value is higher (lower) than the judgment threshold, the time count value is cleared. When the time count value is greater than the specified time value, the write (high) low voltage event ends, clearing the status word.
According to the implementation method for recording the high-low voltage events of the double-core intelligent ammeter management unit, when the ammeter management unit operates, the high-low voltage events are judged by acquiring real-time data pushed by the metering management service, checking the upper limit value and the lower limit value according to the voltage value in the real-time data, and checking the upper limit value and the lower limit value according to the voltage. Meanwhile, a method for realizing event recording of the management unit is adopted, namely, recorded data is stored in the management unit through an event thread. The event record is established by a main thread after the electric meter is electrified, the high-low voltage event record is counted by establishing a sub-thread, the event record is carried out by judging signals of modules such as a time-sharing metering module and the like and establishing a timer task, the program thread resource is saved, the event judgment and processing are carried out according to voltage data, a voltage threshold value, specified time and the like when the voltage qualification rate is judged, and the accuracy and the real-time performance of the result are ensured.
It should be understood that, although the steps in the flowcharts of the present application are shown in sequence as indicated by the arrows, the steps are not necessarily performed in sequence as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in the figures may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of execution of the steps or stages is not necessarily sequential, but may be performed alternately or in alternation with other steps or at least some of the other steps or stages.
In one embodiment, as shown in fig. 7, there is provided a voltage event recording device for a two-core smart meter, applied to a management unit of the two-core smart meter, including: a real-time voltage obtaining module 701, a recognition condition determining module 702, a real-time identifier obtaining module 703 and a voltage event recording module 704, wherein:
the real-time voltage acquisition module 701 is used for acquiring real-time voltage data from a metering unit of the double-core intelligent electric meter;
an identification condition determining module 702, configured to determine an event state identification condition corresponding to states of various voltage events;
the real-time identifier obtaining module 703 is configured to obtain a current event status identifier of the dual-core smart meter, and determine the real-time event status identifier of the dual-core smart meter according to the current event status identifier, the real-time voltage data, and the event status identification condition;
and a voltage event recording module 704, configured to update the current event status identifier to the real-time event status identifier if the real-time event status identifier is different from the current event status identifier, and record a voltage event corresponding to the real-time event status identifier.
In one embodiment, the voltage event comprises: a high voltage event; event state identification conditions, including: a first voltage threshold for identifying an event state of a high voltage event, and a first duration threshold; the real-time identifier obtaining module 703 is further configured to compare the real-time voltage data with a first voltage threshold when the current event status identifier is the end status identifier of the high-voltage event; if the real-time voltage data is greater than the first voltage threshold and the duration of the real-time voltage data greater than the first voltage threshold is greater than the first duration threshold, determining that the real-time event state identifier is the occurrence state identifier of the high-voltage event; and comparing the real-time voltage data with a first voltage threshold when the current event state identifier is the occurrence state identifier of the high-voltage event; and if the real-time voltage data is smaller than the first voltage threshold and the duration of the real-time voltage data smaller than the first voltage threshold is larger than the first duration threshold, determining that the real-time event state identifier is the ending state identifier of the high-voltage event.
In one embodiment, the real-time voltage obtaining module 701 is further configured to continuously obtain a plurality of real-time voltage data from the metering unit at preset time intervals; the real-time identifier obtaining module 703 is further configured to obtain a number of data of the continuous real-time voltage data that is greater than the first voltage threshold, and if the number of data is greater than a preset first number threshold, determine that a duration that the real-time voltage data is greater than the first voltage threshold is greater than the first duration threshold; and the data number is used for acquiring the continuous real-time voltage data smaller than the first voltage threshold, and if the data number is larger than the first number threshold, the duration that the real-time voltage data is smaller than the first voltage threshold is determined to be larger than the first duration threshold.
In one embodiment, the voltage event comprises: a low voltage event; the event state identifies a condition, further comprising: a second voltage threshold for identifying an event state of a low voltage event, and a second duration threshold; the real-time identifier obtaining module 703 is further configured to compare the real-time voltage data with a second voltage threshold when the current event status identifier is the ending status identifier of the low-voltage event; if the real-time voltage data is smaller than the second voltage threshold and the duration of the real-time voltage data smaller than the second voltage threshold is larger than the second duration threshold, determining that the real-time event state identifier is the occurrence state identifier of the low-voltage event; and comparing the real-time voltage data with a second voltage threshold when the current event state identifier is the occurrence state identifier of the low-voltage event; and if the real-time voltage data is greater than the second voltage threshold and the duration of the real-time voltage data greater than the second voltage threshold is greater than the second duration threshold, determining that the real-time event state identifier is the ending state identifier of the low-voltage event.
In one embodiment, the real-time voltage obtaining module 701 is further configured to continuously obtain a plurality of real-time voltage data from the metering unit at preset time intervals; the real-time identifier obtaining module 703 is further configured to obtain a number of data of the continuous real-time voltage data smaller than the second voltage threshold, and if the number of data is greater than a preset second number threshold, determine that a duration of the real-time voltage data smaller than the second voltage threshold is greater than the second duration threshold; and the data number is used for acquiring the continuous real-time voltage data which is greater than the second voltage threshold, and if the data number is greater than the preset second number threshold, the duration that the real-time voltage data is greater than the second voltage threshold is determined to be greater than the second duration threshold.
In one embodiment, the voltage event recording device of the two-core smart meter further comprises: and the power-on initialization module is used for performing power-on initialization on the double-core intelligent electric meter and setting the current event state identifier of the voltage event as the ending state identifier.
In one embodiment, a management unit of the double-core intelligent electric meter carries an event record application; the power-on initialization module is also used for creating a voltage event recording thread for recording voltage events through a main thread of an event recording application; and the voltage event recording module 704 is further configured to record a voltage event corresponding to the real-time event status identifier through a voltage event recording thread.
For specific limitations of the voltage event recording device of the two-core smart meter, reference may be made to the above limitations of the voltage event recording method of the two-core smart meter, and details thereof are not repeated herein. All or part of each module in the voltage event recording device of the double-core intelligent electric meter can be realized by software, hardware and a combination thereof. The modules can be embedded in a processor in the dual-core intelligent electric meter or independent of the processor in the dual-core intelligent electric meter in a hardware form, and can also be stored in a memory in the dual-core intelligent electric meter in a software form, so that the processor can call and execute the corresponding operation of the modules.
In one embodiment, a two-core smart meter is provided, which may be a terminal, and the internal structure thereof may be as shown in fig. 8. The double-core intelligent electric meter comprises a processor, a memory, a communication interface, a display screen and an input device which are connected through a system bus. Wherein, the processor of the double-core intelligent electric meter is used for providing calculation and control capability. The memory of the double-core intelligent electric meter comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The communication interface of the double-core intelligent electric meter is used for carrying out wired or wireless communication with an external terminal, and the wireless communication can be realized through WIFI, an operator network, NFC (near field communication) or other technologies. The computer program is executed by a processor to implement a voltage event logging method for a two-core smart meter.
Those skilled in the art will appreciate that the configuration shown in fig. 8 is a block diagram of only a portion of the configuration associated with the present application and does not constitute a limitation on the two-core smart meter to which the present application is applied, and that a particular two-core smart meter may include more or fewer components than those shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, a two-core smart meter is further provided, which includes a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the above method embodiments when executing the computer program.
In an embodiment, a computer-readable storage medium is provided, on which a computer program is stored which, when being executed by a processor, carries out the steps of the above-mentioned method embodiments.
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 hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include at least one of non-volatile and volatile memory. Non-volatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical storage, or the like. Volatile Memory can include Random Access Memory (RAM) or external cache Memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A voltage event recording method of a two-core intelligent electric meter is characterized by being applied to a management unit of the two-core intelligent electric meter, and comprising the following steps:
acquiring real-time voltage data from a metering unit of the double-core intelligent electric meter;
determining event state identification conditions corresponding to states of various voltage events;
acquiring a current event state identifier of the double-core intelligent electric meter, and determining the real-time event state identifier of the double-core intelligent electric meter according to the current event state identifier, real-time voltage data and the event state identification condition;
and if the real-time event state identification is different from the current event state identification, updating the current event state identification to the real-time event state identification, and recording a voltage event corresponding to the real-time event state identification.
2. The method of claim 1, wherein the voltage event comprises: a high voltage event; the event state identifies conditions including: a first voltage threshold for identifying an event state of the high voltage event, and a first duration threshold;
the determining the real-time event state identifier of the dual-core intelligent electric meter according to the current event state identifier, the real-time voltage data and the event state identification condition comprises the following steps:
when the current event state identifier is the end state identifier of the high-voltage event, comparing the real-time voltage data with the first voltage threshold;
if the real-time voltage data is greater than the first voltage threshold and the duration of the real-time voltage data greater than the first voltage threshold is greater than the first duration threshold, determining that the real-time event state identifier is the occurrence state identifier of the high-voltage event;
and/or
When the current event state identifier is the occurrence state identifier of the high-voltage event, comparing the real-time voltage data with the first voltage threshold;
and if the real-time voltage data is smaller than the first voltage threshold and the duration of the real-time voltage data smaller than the first voltage threshold is larger than the first duration threshold, determining that the real-time event state identifier is the end state identifier of the high-voltage event.
3. The method of claim 2, wherein said obtaining real-time voltage data from a metering unit of said two-core smart meter comprises:
continuously acquiring a plurality of real-time voltage data from the metering unit according to a preset time interval;
before the determining that the real-time event status identifier is the occurrence status identifier of the high-voltage event, the method further includes:
acquiring the data number of continuous real-time voltage data which is greater than the first voltage threshold, and if the data number is greater than a preset first number threshold, determining that the duration of the real-time voltage data which is greater than the first voltage threshold is greater than the first duration threshold;
before determining that the real-time event status flag is the end status flag of the high-voltage event, the method further includes:
and acquiring the data number of the continuous real-time voltage data smaller than the first voltage threshold, and if the data number is larger than the first number threshold, determining that the duration of the real-time voltage data smaller than the first voltage threshold is larger than the first duration threshold.
4. The method of claim 1, wherein the voltage event comprises: a low voltage event; the event state identifies a condition, further comprising: a second voltage threshold for identifying an event state of the low voltage event, and a second duration threshold;
the determining the real-time event state identifier of the dual-core intelligent electric meter according to the current event state identifier, the real-time voltage data and the event state identification condition comprises the following steps:
when the current event state identifier is the ending state identifier of the low-voltage event, comparing the real-time voltage data with the second voltage threshold;
if the real-time voltage data is smaller than the second voltage threshold and the duration of the real-time voltage data smaller than the second voltage threshold is larger than the second duration threshold, determining that the real-time event state identifier is the occurrence state identifier of the low-voltage event;
and/or
When the current event state identifier is the occurrence state identifier of the low-voltage event, comparing the real-time voltage data with the second voltage threshold;
and if the real-time voltage data is greater than the second voltage threshold and the duration of the real-time voltage data greater than the second voltage threshold is greater than the second duration threshold, determining that the real-time event state identifier is the ending state identifier of the low-voltage event.
5. The method of claim 4, wherein said obtaining real-time voltage data from a metering unit of said two-core smart meter comprises:
continuously acquiring a plurality of real-time voltage data from the metering unit according to a preset time interval;
before the determining that the real-time event status identifier is the occurrence status identifier of the low-voltage event, the method further includes:
acquiring the number of continuous real-time voltage data smaller than the second voltage threshold, and if the number of the continuous real-time voltage data is larger than a preset second number threshold, determining that the duration of the real-time voltage data smaller than the second voltage threshold is larger than the second duration threshold;
before determining that the real-time event status flag is the end status flag of the low-voltage event, the method further includes:
and acquiring the data number of the continuous real-time voltage data which is greater than the second voltage threshold, and if the data number is greater than a preset second number threshold, determining that the duration of the real-time voltage data which is greater than the second voltage threshold is greater than the second duration threshold.
6. The method according to any one of claims 1 to 5, wherein before the obtaining real-time voltage data from the metering unit of the two-core smart meter, the method further comprises:
and carrying out power-on initialization on the double-core intelligent electric meter, and setting the current event state identifier of the voltage event as an ending state identifier.
7. The method according to claim 6, wherein the management unit of the two-core smart meter carries an event recording application;
after the double-core intelligent electric meter is powered on and initialized, the method further comprises the following steps:
creating, by a main thread of the event logging application, a voltage event logging thread for logging voltage events;
the recording of the voltage event corresponding to the real-time event state identifier includes:
and recording a voltage event corresponding to the real-time event state identification through the voltage event recording thread.
8. The utility model provides a voltage event recorder of two-core smart electric meter which characterized in that is applied to two-core smart electric meter's administrative unit, the device includes:
the real-time voltage acquisition module is used for acquiring real-time voltage data from a metering unit of the double-core intelligent electric meter;
the identification condition determining module is used for determining event state identification conditions corresponding to states of various voltage events;
the real-time identification acquisition module is used for acquiring a current event state identification of the double-core intelligent electric meter and determining the real-time event state identification of the double-core intelligent electric meter according to the current event state identification, the real-time voltage data and the event state identification condition;
and the voltage event recording module is used for updating the current event state identifier into the real-time event state identifier and recording a voltage event corresponding to the real-time event state identifier if the real-time event state identifier is different from the current event state identifier.
9. A two-core smart meter comprising a memory and a processor, the memory storing a computer program, wherein the processor when executing the computer program implements the steps of the method of any one of claims 1 to 7.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 7.
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