CN112083223A - Time synchronization method for power acquisition terminal with abnormal battery - Google Patents
Time synchronization method for power acquisition terminal with abnormal battery Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/061—Details of electronic electricity meters
- G01R22/063—Details of electronic electricity meters related to remote communication
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/061—Details of electronic electricity meters
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- G—PHYSICS
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/371—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with remote indication, e.g. on external chargers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
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- G01R31/388—Determining ampere-hour charge capacity or SoC involving voltage measurements
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/392—Determining battery ageing or deterioration, e.g. state of health
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Abstract
The invention relates to a time synchronization method for an electric power acquisition terminal with abnormal battery, which is characterized in that the abnormal battery voltage condition and the abnormal time condition of the electric power acquisition terminal are respectively judged, and then the electric power acquisition terminal processes according to the acquired electric meter time, so that different updating modes aiming at the electric power acquisition terminal time are adopted according to the difference value condition between the electric meter time and the electric power acquisition terminal time, the time after the electric power acquisition terminal updates the time synchronization is ensured to be accurate, self-repairing is realized, adverse effects on the normal operation of the electric power acquisition terminal due to the abnormal battery are avoided, the normal work of the electric power acquisition terminal and important functions related to the time is ensured, and the normal reading of the electric meter data by the electric power acquisition terminal is maintained.
Description
Technical Field
The invention relates to the field of electric power, in particular to a time setting method for an electric power acquisition terminal with an abnormal battery.
Background
The intelligent electric meter industry in China is developed more mature, according to statistics, 2.047 hundred million intelligent electric meters are used accumulatively in a national network, the average requirement is 4094 ten thousand every year, and the number of the current running electric power acquisition terminals reaches more than 100 thousand. The market speed increase of the intelligent electric meter is kept about 15% in the future. The electric power acquisition terminal is installed in the district more, and the mounted position is comparatively concentrated. When the electric power acquisition terminal breaks down in a large scale, the life of residents is greatly influenced. Therefore, the operation and maintenance efficiency of the power acquisition terminal is improved, the problems of the power acquisition terminal are solved in time, the maintenance cost is reduced, and the method has important significance.
With the continuous construction of national power grids, some power acquisition terminals with long input running time start to have some problems, such as clock battery failure. The power acquisition terminal keeps the clock after power failure, so that a clock battery is arranged on the mainboard to supply power to the RTC module. However, since the batteries themselves have problems of self-discharge and yield after the batch of batteries, a certain proportion of the batteries in the power collection terminal which is already put into operation are in a dead state. If the battery is dead, the clock of the power acquisition terminal is lost after the alternating current is powered off, so that the important functions related to time, such as data storage, task reporting and the like, of the power acquisition terminal are disordered after the power acquisition terminal is powered on again, and the power acquisition terminal cannot normally run.
Aiming at the condition that the battery abnormality of the power acquisition terminal possibly has adverse effect on the clock, the following measures are mainly taken to eliminate the effect on the power acquisition terminal clock caused by the battery abnormality at present:
the first measure is to install an abnormal battery into the power acquisition terminal, then start power-up the power acquisition terminal, and observe the time of the power acquisition terminal, so as to perform time synchronization operation with a normal clock. However, other abnormal situations of the power acquisition terminal are not considered in the time setting operation of the power acquisition terminal aiming at the battery abnormality, which is not beneficial to realizing the requirement of the comprehensive test of the power acquisition terminal.
The second measure is to update and adjust the clock in the power acquisition terminal in a remote upgrading mode. The upgrading instruction in the measure can be issued only by the master station, which is not beneficial to the master station to read a large amount of data at the same time, and the operation is inconvenient.
The third measure is that the power acquisition terminal requests the master station to perform command time setting at a preset moment every day. However, the measure is not beneficial to the power acquisition terminal to read the data of the electric meter in time, so that the important time-related functions of data storage, task reporting and the like of the power acquisition terminal are easily disordered after the power acquisition terminal is powered on again, and the power acquisition terminal cannot normally operate.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a time synchronization method for an electric power acquisition terminal with an abnormal battery in view of the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: a time synchronization method for an abnormal electric power acquisition terminal of a battery is characterized by comprising the following steps:
step 1, starting an electric power acquisition terminal to enable the electric power acquisition terminal to be in an operating state;
step 2, writing the time of the power acquisition terminal into the ferroelectricity of the power acquisition terminal according to a preset writing time interval;
step 3, the power acquisition terminal is powered off, and then the power acquisition terminal is powered on;
step 4, presetting a preset voltage threshold value aiming at the abnormal voltage of a battery in the power acquisition terminal;
step 5, judging the abnormal condition of the battery voltage according to the battery voltage of the power acquisition terminal and the preset voltage threshold:
when the battery voltage is smaller than a preset voltage threshold value, judging that the battery voltage is in an undervoltage state, carrying out time synchronization operation on the time of the power acquisition terminal by using the ferroelectric time in the power acquisition terminal, taking the ferroelectric time as the current time value of the power acquisition terminal, and turning to step 6; otherwise, judging that the voltage of the battery is in a normal state, and finishing the time setting operation aiming at the power acquisition terminal;
step 6, judging whether the time is abnormal according to the time of the power acquisition terminal:
when the time of the power acquisition terminal is within the legal time range, turning to step 7; otherwise, judging that the time of the electric power acquisition terminal is abnormal, carrying out time synchronization operation on the time of the electric power acquisition terminal by using the ferroelectric time in the electric power acquisition terminal, and taking the ferroelectric time as the current time value of the electric power acquisition terminal;
step 7, after the electric power acquisition terminal reads the electric meter data, the electric power acquisition terminal reads the electric meter time corresponding to each electric meter reading mode file in the link detection stage;
step 8, the electric power acquisition terminal makes judgment processing according to the read ammeter time:
when the time for reading any ammeter is within the legal time range, the ammeter is recorded as a legal ammeter, and the electric power acquisition terminal discards the time for reading the rest of ammeters into the memory of the electric power acquisition terminal; otherwise, go to step 7;
step 9, the electric power acquisition terminal makes judgment processing according to the number of the read legal electric meters:
when the number of the read legal electric meters is within the preset number range, the electric power acquisition terminal does not read the electric meter data within the preset time period, stores the time of reading the electric meter for the last time, and then goes to step 10;
when the number of the read legal electric meters is smaller than the lower limit value of the preset number range, the electric power acquisition terminal continues to read each electric meter for time;
when the number of the read legal electric meters is larger than the upper limit value of the preset number range, the electric power acquisition terminal stops reading each electric meter for a time;
step 10, the electric power acquisition terminal carries out time setting treatment according to the number of the read legal electric meters:
when the number of the read legal electric meters is a first preset number value and the time difference between the time of the electric power acquisition terminal and the time of the electric meter is greater than a preset time difference value, taking the time of the electric power acquisition terminal as the current time of the electric meter, and finishing the time setting operation;
when the number of the read legal electric meters is a second preset number value, and the time difference between the time of the electric power acquisition terminal and the time of the electric meters is greater than the preset time difference value, the electric power acquisition terminal takes the average time value of all the legal electric meter times as the current time of the electric power acquisition terminal to finish the time setting operation; wherein the second preset number value is greater than the first preset number value;
when the number of the read legal electric meters is a second preset number value and the time difference between the time of the electric power acquisition terminal and the time of the electric meters is smaller than a preset time difference value, the electric power acquisition terminal takes the average time value of the time of the electric power acquisition terminal, the time setting operation is finished;
when the number of the read legal electric meters is larger than a second preset number value, and the time difference between the electric power acquisition terminal time and the electric meter time is larger than a preset time difference value, the electric power acquisition terminal deletes the maximum value and the minimum value of the read electric meter time, and takes the average value of all the remaining electric meter time as the current time of the electric power acquisition terminal to finish the time setting operation;
and when the number of the read legal electric meters is greater than a second preset number value, and the time difference between the time of the electric power acquisition terminal and the time of the electric meters is smaller than a preset time difference value, deleting the time of the electric power acquisition terminal from the time of the electric power acquisition terminal, and taking the average value of all the remaining time as the current time of the electric power acquisition terminal to finish the time setting operation.
Further, in the method for time synchronization of the abnormal power acquisition terminal of the battery, the preset write time interval is 1 min.
Further, in the time synchronization method of the abnormal power acquisition terminal of the battery, the preset voltage threshold is between 2.5 and 3.67V.
Further, in the method for time synchronization of the abnormal power acquisition terminal of the battery, the preset time difference is 5 min.
Further, in the time synchronization method for the abnormal power acquisition terminal of the battery, the preset number range is 2-10.
Still further, in the method for time synchronization of the abnormal battery power collection terminal, the first preset quantity value is 1, and the second preset quantity value is 2.
Optionally, in the method for time synchronization of the power acquisition terminal with abnormal battery, the power acquisition terminal is a concentrator or a special transformer.
Optionally, in the time synchronization method of the power acquisition terminal with the abnormal battery, the electric meter reading mode file is a 485 electric meter reading mode, a carrier electric meter reading mode or a serial electric meter reading mode.
Further, in the time synchronization method of the abnormal power acquisition terminal of the battery, the ammeter reading mode file is a carrier ammeter reading mode, and the baud rate of the carrier is positive integer multiple of 300 bps.
Optionally, in the method for time synchronization of the power acquisition terminal with the abnormal battery, the electric meter is a 07-protocol electric meter, a 97-protocol electric meter or a 698-protocol electric meter.
Compared with the prior art, the invention has the advantages that: the time synchronization method of the power acquisition terminal can realize the time synchronization operation of the power acquisition terminal under the condition of not changing the original hardware structure of the power acquisition terminal, by respectively judging the abnormal conditions of the battery voltage and the time of the power acquisition terminal, then the electric power acquisition terminal processes according to the acquired electric meter time, different updating modes aiming at the electric power acquisition terminal time are adopted according to the difference condition between the electric meter time and the electric power acquisition terminal time, the time after the electric power acquisition terminal updates the time is accurate, self-repairing is realized, adverse effects caused to the normal operation of the electric power acquisition terminal due to battery abnormity are avoided, the electric power acquisition terminal and the normal work of important functions related to the time are ensured, and the electric power acquisition terminal is maintained to normally read the electric meter data.
Drawings
Fig. 1 is a schematic flow chart of a time synchronization method for a concentrator with abnormal battery according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
The embodiment provides a time synchronization method for an abnormal battery power acquisition terminal, wherein the power acquisition terminal is a concentrator, and a normal rechargeable battery is adopted as a battery in the concentrator. As shown in fig. 1, the concentrator time synchronization method for battery abnormality in this embodiment includes the following steps:
step 1, starting a concentrator to enable the concentrator to be in an operating state;
step 2, writing the time of the concentrator into the ferroelectricity of the concentrator according to a preset writing time interval; wherein the preset writing time interval is 1 min;
step 3, the concentrator is powered off, and then the concentrator is powered on;
step 4, presetting a preset voltage threshold value aiming at the abnormal voltage of the battery in the concentrator; for example, the embodiment limits the range of the preset voltage threshold to 2.5-3.67V;
step 5, judging the abnormal condition of the battery voltage according to the battery voltage of the concentrator and the preset voltage threshold:
when the battery voltage is smaller than the preset voltage threshold, judging that the battery voltage is in an undervoltage state, carrying out time synchronization operation on the time of the concentrator by using the ferroelectric time in the concentrator, taking the ferroelectric time as the current time value of the concentrator, and turning to step 6; otherwise, judging that the battery voltage is in a normal state, and ending the time setting operation aiming at the concentrator;
and 6, judging whether the time is abnormal according to the time of the concentrator:
when the time of the concentrator is within the legal time range, the step 7 is carried out; otherwise, judging the time of the concentrator is abnormal, carrying out time synchronization operation on the time of the concentrator by using the ferroelectric time in the concentrator, and taking the ferroelectric time as the current time value of the concentrator;
step 7, after the concentrator reads the electric meter data, the concentrator reads the electric meter time corresponding to each electric meter reading mode file in the link detection stage; the ammeter reading mode file can be selected to be a 485 ammeter reading mode, a carrier ammeter reading mode or a serial port ammeter reading mode according to needs; certainly, if the ammeter reading mode file adopts a carrier ammeter reading mode, the baud rate of the carrier is positive integral multiple of 300 bps; the ammeter can be a 07 protocol ammeter, a 97 protocol ammeter or a 698 protocol ammeter;
step 8, the concentrator makes judgment processing according to the read ammeter time:
when the time of reading any ammeter is within the legal time range, recording the ammeter as a legal ammeter, and discarding the time of reading the rest ammeter into the memory of the concentrator by the concentrator; otherwise, go to step 7;
step 9, the concentrator makes judgment processing according to the number of the read legal electric meters:
when the number of the read legal electric meters is within the preset number range, the concentrator does not read the electric meter data within the preset time period, stores the time of reading the electric meter for the last time, and then goes to step 10; wherein the preset number range is 2-10;
when the number of the read legal electric meters is smaller than the lower limit value of the preset number range, namely the number of the read legal electric meters is smaller than 2, the concentrator continues to read each electric meter for time;
when the number of the read legal electric meters is larger than the upper limit value of the preset number range, namely the number of the read legal electric meters is larger than 10, the concentrator stops reading each electric meter for a time;
step 10, the concentrator carries out time setting treatment according to the number of the read legal electric meters:
when the number of the read legal electric meters is a first preset number value, for example, the first preset number value is 1, and the time difference between the time of the concentrator and the time of the electric meter is greater than a preset time difference value, the time of the concentrator is taken as the current time of the electric meter, and the time setting operation is completed; wherein, the preset time difference value is set to be 5 min;
when the number of the read legal electric meters is a second preset number value, for example, the second preset number value is 2, and the time difference between the time of the concentrator and the time of the electric meters is greater than the preset time difference value, the concentrator takes the average time value of all the legal electric meter times as the current time of the concentrator, and the time setting operation is completed; wherein the second preset number value is greater than the first preset number value;
when the number of the copied legal electric meters is a second preset number value and the time difference between the time of the concentrator and the time of the electric meters is smaller than the preset time difference value, the concentrator takes the average time value of the time of the concentrator, the time of the concentrator and the time of the electric meters as the current time of the concentrator, and the time synchronization operation is finished;
when the number of the read legal electric meters is larger than a second preset number value, and the time difference between the time of the concentrator and the time of the electric meters is larger than a preset time difference value, deleting the maximum value and the minimum value of the read electric meter time by the concentrator, taking the average value of all the remaining electric meter time as the current time of the concentrator, and finishing the time setting operation;
and when the number of the read legal electric meters is greater than a second preset number value, and the time difference between the time of the concentrator and the time of the electric meters is less than a preset time difference value, deleting the time maximum value and the time minimum value in the time of the concentrator and the time of all the read electric meters by the concentrator, and taking the average value of the rest all the time as the current time of the concentrator to finish the time setting operation.
Of course, the time synchronization method for the power collection terminal with abnormal battery in the embodiment can also be applied to time synchronization operation aiming at specific changes.
Although preferred embodiments of the present invention have been described in detail hereinabove, it should be clearly understood that modifications and variations of the present invention are possible to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A time synchronization method for an abnormal electric power acquisition terminal of a battery is characterized by comprising the following steps:
step 1, starting an electric power acquisition terminal to enable the electric power acquisition terminal to be in an operating state;
step 2, writing the time of the power acquisition terminal into the ferroelectricity of the power acquisition terminal according to a preset writing time interval;
step 3, the power acquisition terminal is powered off, and then the power acquisition terminal is powered on;
step 4, presetting a preset voltage threshold value aiming at the abnormal voltage of a battery in the power acquisition terminal;
step 5, judging the abnormal condition of the battery voltage according to the battery voltage of the power acquisition terminal and the preset voltage threshold:
when the battery voltage is smaller than a preset voltage threshold value, judging that the battery voltage is in an undervoltage state, carrying out time synchronization operation on the time of the power acquisition terminal by using the ferroelectric time in the power acquisition terminal, taking the ferroelectric time as the current time value of the power acquisition terminal, and turning to step 6; otherwise, judging that the voltage of the battery is in a normal state, and finishing the time setting operation aiming at the power acquisition terminal;
step 6, judging whether the time is abnormal according to the time of the power acquisition terminal:
when the time of the power acquisition terminal is within the legal time range, turning to step 7; otherwise, judging that the time of the electric power acquisition terminal is abnormal, carrying out time synchronization operation on the time of the electric power acquisition terminal by using the ferroelectric time in the electric power acquisition terminal, and taking the ferroelectric time as the current time value of the electric power acquisition terminal;
step 7, after the electric power acquisition terminal reads the electric meter data, the electric power acquisition terminal reads the electric meter time corresponding to each electric meter reading mode file in the link detection stage;
step 8, the electric power acquisition terminal makes judgment processing according to the read ammeter time:
when the time for reading any ammeter is within the legal time range, the ammeter is recorded as a legal ammeter, and the electric power acquisition terminal discards the time for reading the rest of ammeters into the memory of the electric power acquisition terminal; otherwise, go to step 7;
step 9, the electric power acquisition terminal makes judgment processing according to the number of the read legal electric meters:
when the number of the read legal electric meters is within the preset number range, the electric power acquisition terminal does not read the electric meter data within the preset time period, stores the time of reading the electric meter for the last time, and then goes to step 10;
when the number of the read legal electric meters is smaller than the lower limit value of the preset number range, the electric power acquisition terminal continues to read each electric meter for time;
when the number of the read legal electric meters is larger than the upper limit value of the preset number range, the electric power acquisition terminal stops reading each electric meter for a time;
step 10, the electric power acquisition terminal carries out time setting treatment according to the number of the read legal electric meters:
when the number of the read legal electric meters is a first preset number value and the time difference between the time of the electric power acquisition terminal and the time of the electric meter is greater than a preset time difference value, taking the time of the electric power acquisition terminal as the current time of the electric meter, and finishing the time setting operation;
when the number of the read legal electric meters is a second preset number value, and the time difference between the time of the electric power acquisition terminal and the time of the electric meters is greater than the preset time difference value, the electric power acquisition terminal takes the average time value of all the legal electric meter times as the current time of the electric power acquisition terminal to finish the time setting operation; wherein the second preset number value is greater than the first preset number value;
when the number of the read legal electric meters is a second preset number value and the time difference between the time of the electric power acquisition terminal and the time of the electric meters is smaller than a preset time difference value, the electric power acquisition terminal takes the average time value of the time of the electric power acquisition terminal, the time setting operation is finished;
when the number of the read legal electric meters is larger than a second preset number value, and the time difference between the electric power acquisition terminal time and the electric meter time is larger than a preset time difference value, the electric power acquisition terminal deletes the maximum value and the minimum value of the read electric meter time, and takes the average value of all the remaining electric meter time as the current time of the electric power acquisition terminal to finish the time setting operation;
and when the number of the read legal electric meters is greater than a second preset number value, and the time difference between the time of the electric power acquisition terminal and the time of the electric meters is smaller than a preset time difference value, deleting the time of the electric power acquisition terminal from the time of the electric power acquisition terminal, and taking the average value of all the remaining time as the current time of the electric power acquisition terminal to finish the time setting operation.
2. The method for time synchronization of the power collection terminal with the abnormal battery according to claim 1, wherein the preset writing time interval is 1 min.
3. The method for time synchronization of the power acquisition terminal with the abnormal battery according to claim 1, wherein the preset voltage threshold is between 2.5 and 3.67V.
4. The method for time synchronization of the power acquisition terminal with the abnormal battery according to claim 1, wherein the preset time difference is 5 min.
5. The method for time synchronization of the power acquisition terminal with the abnormal battery according to claim 1, wherein the preset number ranges from 2 to 10.
6. The method for time synchronization of the power collection terminal with the abnormal battery according to claim 5, wherein the first predetermined quantity value is 1, and the second predetermined quantity value is 2.
7. The method for time synchronization of the power acquisition terminal with the abnormal battery according to any one of claims 1 to 6, wherein the power acquisition terminal is a concentrator or a special transformer.
8. The method for time synchronization of the power acquisition terminal with the abnormal battery according to any one of claims 1 to 6, wherein the electric meter reading mode file is a 485 electric meter reading mode, a carrier electric meter reading mode or a serial electric meter reading mode.
9. The method for time synchronization of the power acquisition terminal in the abnormal battery state of claim 8, wherein the electric meter reading mode file is a carrier electric meter reading mode, and the baud rate of the carrier is a positive integer multiple of 300 bps.
10. The method for time synchronization of the power collection terminal with the abnormal battery according to any one of claims 1 to 6, wherein the electric meter is a 07-protocol electric meter, a 97-protocol electric meter or a 698-protocol electric meter.
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