CN106200353A - A kind of method of the clock for testing twin-core electric energy meter - Google Patents
A kind of method of the clock for testing twin-core electric energy meter Download PDFInfo
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- CN106200353A CN106200353A CN201610634316.5A CN201610634316A CN106200353A CN 106200353 A CN106200353 A CN 106200353A CN 201610634316 A CN201610634316 A CN 201610634316A CN 106200353 A CN106200353 A CN 106200353A
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- energy meter
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- G—PHYSICS
- G04—HOROLOGY
- G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
- G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
- G04D7/002—Electrical measuring and testing apparatus
- G04D7/003—Electrical measuring and testing apparatus for electric or electronic clocks
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Abstract
A kind of method that the invention discloses clock for testing twin-core electric energy meter, it comprises the following steps, step one: twin-core electric energy meter is connected with PC；Step 2: arrange and check meter time T2, actual checks meter time T0 and time T2 contrast of checking meter, if unanimously, enters step 3, otherwise jumps to step 6；Step 3: reduce voltage, and record time T4, voltage actual reduction time T3 and time T4 contrasts, if unanimously, enters step 4, otherwise jumps to step 6；Step 4: change parameter, and record time T8, parameter actual change time T7 and time T8 contrasts, if unanimously, enters step 5, otherwise jumps to step 6；Step 5: this twin-core electric energy meter is qualified products；Step 6: this twin-core electric energy meter is substandard product.It is an advantage of the invention that the method can test out the metering module soft clock of twin-core electric energy meter, clock chip and management module soft clock whether accurate timing.
Description
Technical field
A kind of method that the present invention relates to clock for testing twin-core electric energy meter.
Background technology
Twin-core electric energy meter, its primary structure includes administrative section and metering section, and wherein, administrative section includes managing mould
Block processor and Clock management module；Metering section includes metering module processor, clock chip and Clock battery；It is fallen into a trap
Amount part has metering module soft clock (metering module processor clock) and clock chip；When administrative section has management module soft
Clock (administrative module processor clock), if the above three clock timing of twin-core electric energy meter is inaccurate, can cause problems, than
It is that twin-core electric energy meter is not recorded actually required time point and recorded meter reading data etc. as said, but in existing technology
The most not relevant method of testing, goes to test metering module processor clock, clock chip and the management in twin-core electric energy meter
Whether module soft clock is in accurate timing.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method of clock for testing twin-core electric energy meter, the party
Method can test out the metering module soft clock of twin-core electric energy meter, clock chip and management module soft clock, and whether timing is accurate
Really.
For solve above-mentioned technical problem, the present invention provide technical scheme be: a kind of for test twin-core electric energy meter time
The method of clock, it comprises the following steps, step one: by running order lower twin-core electric energy meter by its RS485 interface and PC
Machine connects；Step 2: the time T2 that checks meter, the clock chip institute record of twin-core electric energy meter are set to the clock chip of twin-core electric energy meter
Actual check meter time T0 and check meter time T2 contrast, if unanimously, enter step 3, otherwise jump to step 6；
Step 3: reduce the voltage of working environment residing for twin-core electric energy meter, and record time T4, the metering module of twin-core electric energy meter
The voltage actual reduction time T3 that soft clock is recorded and time T4 contrasts, if unanimously, enters step 4, otherwise jumps to step
Six；
Step 4: change twin-core parameters of electric energy meter, and record time T8, the management module soft clock of twin-core electric energy meter is recorded
Parameter actual change time T7 and the time T8 contrast of twin-core electric energy meter, if unanimously, enters step 5, otherwise jumps to step
Six；
Step 5: this twin-core electric energy meter is designated as qualified products；
Step 6: this twin-core electric energy meter is designated as substandard product.
Further, wherein, in step 3, reduce the voltage of working environment residing for twin-core electric energy meter, cause twin-core electric energy
The voltage of working environment residing for table reduces to the 60% of normal voltage.
Further, in step 3, go again to reduce residing for twin-core electric energy meter after twin-core electric energy meter runs t1 hour
The voltage of working environment.
Further, wherein, in rapid three, after reducing the voltage of working environment residing for twin-core electric energy meter or in reduction
Carry out reducing the operation of the electric current of working environment residing for twin-core electric energy meter while the voltage of working environment residing for twin-core electric energy meter,
And record time T6, the electric current actual reduction time T5 that the metering module soft clock of twin-core electric energy meter is recorded and time T6 pair
Ratio, if unanimously, enters step 4, otherwise jumps to step 6.
Further, wherein, reduce the electric current of working environment residing for twin-core electric energy meter, cause the residing work of twin-core electric energy meter
The electric current of environment reduces to the 40% of normalized current.
Further, wherein, in step one, after twin-core electric energy meter is connected with PC by its RS485 interface, to double
Core electric energy meter carries out power-on and power-off operation, and power-on and power-off have operated and entered back into step 2 afterwards.
Further, twin-core electric energy meter is carried out the detailed process of power-on and power-off operation be within the t2 time set repeatedly
Carry out repeatedly power-on and power-off operation.
Further, in step 3, after twin-core electric energy meter runs t1 hour, by the Clock battery of twin-core electric energy meter
Disassemble, then remove to reduce the voltage of working environment residing for twin-core electric energy meter.
Further, in step 3, after twin-core electric energy meter runs t1 hour, by the Clock battery of twin-core electric energy meter
All disassemble with stopping copying battery, then remove to reduce the voltage of working environment residing for twin-core electric energy meter.
Further, in step 3, after twin-core electric energy meter runs t1 hour, by the Clock battery of twin-core electric energy meter
All disassemble with stopping copying battery, allow twin-core electric energy meter run the most again t2 hour, go the most again to reduce residing for twin-core electric energy meter
The voltage of working environment.
Use after above method, the present invention compared with prior art, have the advantage that by twin-core electric energy meter time
Clock chip arranges and checks meter time T2, and what the clock chip of twin-core electric energy meter was recorded actual checks meter time T0 and time T2 pair of checking meter
Ratio, determine clock chip whether can accurately timing, by comparing comparing result, if contrast is consistent, then show timing clock core
Sheet can accurately timing, enter back into second test step；If inconsistent direct judgement twin-core electric energy meter is defective,
Second test step is, by reducing the voltage of working environment residing for twin-core electric energy meter, and records time T4, twin-core electricity
Voltage actual reduction time T3 and the time T4 that the metering module soft clock of energy table is recorded contrasts, and determines twin-core electric energy meter
Metering module soft clock whether can accurately timing, by comparing comparing result, if contrast is consistent, then show twin-core electric energy meter
Metering module soft clock can accurately timing, enter back into the 3rd road test step；If inconsistent direct judgement twin-core electric energy meter is not
It is qualified,
3rd road test step is, by change twin-core parameters of electric energy meter, and records time T8, the management module of twin-core electric energy meter
Parameter actual change time T7 and the time T8 contrast of the twin-core electric energy meter that soft clock is recorded, determines the pipe of twin-core electric energy meter
Reason module soft clock whether can accurately timing, by comparing comparing result, if contrast is unanimously, then show the pipe of twin-core electric energy meter
Reason module soft clock can accurately timing, by above-mentioned three road test steps, it is possible to test out the metering module of twin-core electric energy meter
Soft clock, clock chip and management module soft clock whether accurate timing, if i.e. having passed through above-mentioned three road test steps,
Show the metering module soft clock of twin-core electric energy meter, clock chip and management module soft clock all can accurately timing,
Method is simple, it is ensured that the qualification rate of product.
Accompanying drawing explanation
Fig. 1 is the flow chart of embodiment of the present invention one.
Fig. 2 is the flow chart of embodiment of the present invention two.
Fig. 3 is the flow chart of embodiment of the present invention three.
Detailed description of the invention
The present invention is described in further detail below in conjunction with the accompanying drawings.
Embodiment one
As shown in Figure 1, the method for a kind of clock for testing twin-core electric energy meter of the present invention, it comprises the following steps,
Step one: in running order lower twin-core electric energy meter is connected with PC by its RS485 interface；Twin-core electric energy meter is in
Duty refers to that twin-core electric energy meter is linked in electrical network and normally starts to measure power consumption, and electrical network here is manually built
The electrical network that simulation is extraneous；
Step 2: arranging, to the clock chip of twin-core electric energy meter, the time T2 that checks meter, the clock chip of twin-core electric energy meter is recorded
Actual check meter time T0 and check meter time T2 contrast, if unanimously, enter step 3, otherwise jump to step 6；
Step 3: reduce the voltage of working environment residing for twin-core electric energy meter, and record time T4, the metering module of twin-core electric energy meter
The voltage actual reduction time T3 that soft clock is recorded and time T4 contrasts, if unanimously, enters step 4, otherwise jumps to step
Six；
Step 4: change twin-core parameters of electric energy meter, and record time T8, the management module soft clock of twin-core electric energy meter is recorded
Parameter actual change time T7 and the time T8 contrast of twin-core electric energy meter, if unanimously, enters step 5, otherwise jumps to step
Six；
Step 5: this twin-core electric energy meter is designated as qualified products；
Step 6: this twin-core electric energy meter is designated as substandard product.
Wherein, in step 3, go again to reduce building ring residing for twin-core electric energy meter after twin-core electric energy meter runs t1 hour
The voltage in border, causes the voltage of working environment residing for twin-core electric energy meter to reduce to the 60% of normal voltage；Reducing twin-core electric energy meter institute
Carry out reducing twin-core after the voltage of place's working environment or while reducing the voltage of working environment residing for twin-core electric energy meter
The operation of the electric current of working environment residing for electric energy meter, causes the electric current of working environment residing for twin-core electric energy meter to reduce to normalized current
40%, and record time T6, the electric current actual reduction time T5 that the metering module soft clock of twin-core electric energy meter is recorded and time T6
Contrast, if unanimously, enters step 4, otherwise jumps to step 6.
Wherein, running t1 hour at twin-core electric energy meter, t1 takes 1, after twin-core electric energy meter runs certain time, then goes reality
The operation executing reduction voltage and current is the meter in order to remove to verify its twin-core electric energy meter after waiting twin-core electric energy meter stable again
Amount module soft clock, clock chip and management module soft clock whether accurate timing.
Wherein, reduce the voltage of working environment residing for twin-core electric energy meter, cause the electricity of working environment residing for twin-core electric energy meter
Pressure drop is the 60% of normal voltage, has the most also carried out reducing the operation of the electric current of working environment residing for twin-core electric energy meter, causes double
Residing for core electric energy meter, the electric current of working environment reduces to the 40% of normalized current, is to occur under voltage and current in simulating grid
The situation of fall so that twin-core electric energy meter is in decompression state, inspection metering module of twin-core electric energy meter in decompression environment is soft
Whether clock, clock chip and management module soft clock can also accurately timing.
Embodiment two
As shown in Figure 2, the method for a kind of clock for testing twin-core electric energy meter of the present invention, it comprises the following steps,
Step one: in running order lower twin-core electric energy meter is connected with PC by its RS485 interface；Twin-core electric energy meter is in
Duty refers to that twin-core electric energy meter is linked in electrical network and normally starts to measure power consumption, and electrical network here is manually built
The electrical network that simulation is extraneous；
Step 2: arranging, to the clock chip of twin-core electric energy meter, the time T2 that checks meter, the clock chip of twin-core electric energy meter is recorded
Actual check meter time T0 and check meter time T2 contrast, if unanimously, enter step 3, otherwise jump to step 6；
Step 3: reduce the voltage of working environment residing for twin-core electric energy meter, and record time T4, the metering module of twin-core electric energy meter
The voltage actual reduction time T3 that soft clock is recorded and time T4 contrasts, if unanimously, enters step 4, otherwise jumps to step
Six；
Step 4: change twin-core parameters of electric energy meter, and record time T8, the management module soft clock of twin-core electric energy meter is recorded
Parameter actual change time T7 and the time T8 contrast of twin-core electric energy meter, if unanimously, enters step 5, otherwise jumps to step
Six；
Step 5: this twin-core electric energy meter is designated as qualified products；
Step 6: this twin-core electric energy meter is designated as substandard product.
Wherein, in step 3, go again to reduce building ring residing for twin-core electric energy meter after twin-core electric energy meter runs t1 hour
The voltage in border, causes the voltage of working environment residing for twin-core electric energy meter to reduce to the 60% of normal voltage；Reducing twin-core electric energy meter institute
Carry out reducing twin-core after the voltage of place's working environment or while reducing the voltage of working environment residing for twin-core electric energy meter
The operation of the electric current of working environment residing for electric energy meter, causes the electric current of working environment residing for twin-core electric energy meter to reduce to normalized current
40%, and record time T6, the electric current actual reduction time T5 that the metering module soft clock of twin-core electric energy meter is recorded and time T6
Contrast, if unanimously, enters step 4, otherwise jumps to step 6.
Wherein, running t1 hour at twin-core electric energy meter, t1 takes 1, after twin-core electric energy meter runs certain time, then goes reality
The operation executing reduction voltage and current is the meter in order to remove to verify its twin-core electric energy meter after waiting twin-core electric energy meter stable again
Amount module soft clock, clock chip and management module soft clock whether accurate timing.
Wherein, reduce the voltage of working environment residing for twin-core electric energy meter, cause the electricity of working environment residing for twin-core electric energy meter
Pressure drop is the 60% of normal voltage, has the most also carried out reducing the operation of the electric current of working environment residing for twin-core electric energy meter, causes double
Residing for core electric energy meter, the electric current of working environment reduces to the 40% of normalized current, is to occur under voltage and current in simulating grid
The situation of fall so that twin-core electric energy meter is in decompression state, inspection metering module of twin-core electric energy meter in decompression environment is soft
Whether clock, clock chip and management module soft clock can also accurately timing.
Wherein, in step one, after twin-core electric energy meter is connected with PC by its RS485 interface, to twin-core electric energy meter
Carrying out power-on and power-off operation, the detailed process that twin-core electric energy meter carries out power-on and power-off operation is repeatedly to enter within the t2 time set
Row repeatedly power-on and power-off operation, power-on and power-off have operated and have entered back into step 2 afterwards, and the size of t2 is manually set；Aforesaid operations
Purpose be in order to simulate go wrong in electrical network cause twin-core electric energy meter to occur power-on and power-off frequently operate, check twin-core electricity
Can table the metering module soft clock of twin-core electric energy meter, clock chip and management module soft clock after power-on and power-off frequently be
No can also accurately timing.
Embodiment three
As shown in Figure 3, the method for a kind of clock for testing twin-core electric energy meter of the present invention, it comprises the following steps,
Step one: in running order lower twin-core electric energy meter is connected with PC by its RS485 interface；Twin-core electric energy meter is in
Duty refers to that twin-core electric energy meter is linked in electrical network and normally starts to measure power consumption, and electrical network here is manually built
The electrical network that simulation is extraneous；
Step 2: arranging, to the clock chip of twin-core electric energy meter, the time T2 that checks meter, the clock chip of twin-core electric energy meter is recorded
Actual check meter time T0 and check meter time T2 contrast, if unanimously, enter step 3, otherwise jump to step 6；
Step 3: reduce the voltage of working environment residing for twin-core electric energy meter, and record time T4, the metering module of twin-core electric energy meter
The voltage actual reduction time T3 that soft clock is recorded and time T4 contrasts, if unanimously, enters step 4, otherwise jumps to step
Six；
Step 4: change twin-core parameters of electric energy meter, and record time T8, the management module soft clock of twin-core electric energy meter is recorded
Parameter actual change time T7 and the time T8 contrast of twin-core electric energy meter, if unanimously, enters step 5, otherwise jumps to step
Six；
Step 5: this twin-core electric energy meter is designated as qualified products；
Step 6: this twin-core electric energy meter is designated as substandard product.
Wherein, in step 3, go again to reduce building ring residing for twin-core electric energy meter after twin-core electric energy meter runs t1 hour
The voltage in border, causes the voltage of working environment residing for twin-core electric energy meter to reduce to the 60% of normal voltage；Reducing twin-core electric energy meter institute
Carry out reducing twin-core after the voltage of place's working environment or while reducing the voltage of working environment residing for twin-core electric energy meter
The operation of the electric current of working environment residing for electric energy meter, causes the electric current of working environment residing for twin-core electric energy meter to reduce to normalized current
40%, and record time T6, the electric current actual reduction time T5 that the metering module soft clock of twin-core electric energy meter is recorded and time T6
Contrast, if unanimously, enters step 4, otherwise jumps to step 6.
Wherein, running t1 hour at twin-core electric energy meter, t1 takes 1, after twin-core electric energy meter runs certain time, then goes reality
The operation executing reduction voltage and current is the meter in order to remove to verify its twin-core electric energy meter after waiting twin-core electric energy meter stable again
Amount module soft clock, clock chip and management module soft clock whether accurate timing.
Wherein, reduce the voltage of working environment residing for twin-core electric energy meter, cause the electricity of working environment residing for twin-core electric energy meter
Pressure drop is the 60% of normal voltage, has the most also carried out reducing the operation of the electric current of working environment residing for twin-core electric energy meter, causes double
Residing for core electric energy meter, the electric current of working environment reduces to the 40% of normalized current, is to occur under voltage and current in simulating grid
The situation of fall so that twin-core electric energy meter is in decompression state, inspection metering module of twin-core electric energy meter in decompression environment is soft
Whether clock, clock chip and management module soft clock can also accurately timing.
Wherein, in step one, after twin-core electric energy meter is connected with PC by its RS485 interface, to twin-core electric energy meter
Carrying out power-on and power-off operation, the detailed process that twin-core electric energy meter carries out power-on and power-off operation is repeatedly to enter within the t2 time set
Row repeatedly power-on and power-off operation, power-on and power-off have operated and have entered back into step 2 afterwards, and the size of t2 is manually set；Aforesaid operations
Purpose be in order to simulate go wrong in electrical network cause twin-core electric energy meter to occur power-on and power-off frequently operate, check twin-core electricity
Can table the metering module soft clock of twin-core electric energy meter, clock chip and management module soft clock after power-on and power-off frequently be
No can also accurately timing.
Wherein, in step 3, after twin-core electric energy meter runs t1 hour, the Clock battery of twin-core electric energy meter is dismantled
Get off, then remove to reduce the voltage of working environment residing for twin-core electric energy meter；Or after twin-core electric energy meter runs t1 hour, will be double
The Clock battery of core electric energy meter and stop copying battery and all disassemble, then remove to reduce the voltage of working environment residing for twin-core electric energy meter；
In step 3, run after t1 hour at twin-core electric energy meter, by the Clock battery of twin-core electric energy meter with stop copying battery and all dismantle
Get off, allow twin-core electric energy meter run the most again t2 hour, go the most again to reduce the voltage of working environment residing for twin-core electric energy meter.It is
Battery is copied after being destroyed by external force in order to simulate the Clock battery and stopping of twin-core electric energy meter, can be by the metering of self
Module handler and administrative module processor recover the clock system of self so that its metering module soft clock, clock chip with
And management module soft clock can accurately timing.
Residing for above-mentioned involved reduction twin-core electric energy meter, the voltage of working environment, i.e. reduces the electricity residing for twin-core electric energy meter
Voltage in net, reduces the electric current of working environment residing for twin-core electric energy meter, i.e. reduces the electricity in the electrical network residing for twin-core electric energy meter
Stream.
Below only highly preferred embodiment of the present invention is described, but is not to be construed as limitations on claims.This
Invention is not limited only to above example, and all various changes made in the protection domain of independent claims of the present invention are all at this
In the protection domain of invention.
Claims (10)
1., for the method testing the clock of twin-core electric energy meter, it comprises the following steps, step one: by running order
Lower twin-core electric energy meter is connected with PC by its RS485 interface；It is characterized in that: step 2: to the clock core of twin-core electric energy meter
Sheet arranges and checks meter time T2, and what the clock chip of twin-core electric energy meter was recorded actual checks meter time T0 and time T2 contrast of checking meter,
If consistent, enter step 3, otherwise jump to step 6；
Step 3: reduce the voltage of working environment residing for twin-core electric energy meter, and record time T4, the metering module of twin-core electric energy meter
The voltage actual reduction time T3 that soft clock is recorded and time T4 contrasts, if unanimously, enters step 4, otherwise jumps to step
Six；
Step 4: change twin-core parameters of electric energy meter, and record time T8, the management module soft clock of twin-core electric energy meter is recorded
Parameter actual change time T7 and the time T8 contrast of twin-core electric energy meter, if unanimously, enters step 5, otherwise jumps to step
Six；
Step 5: this twin-core electric energy meter is qualified products；
Step 6: this twin-core electric energy meter is substandard product.
The method of a kind of clock for testing twin-core electric energy meter the most according to claim 1, it is characterised in that: wherein,
In step 3, reduce the voltage of working environment residing for twin-core electric energy meter, cause the voltage drop of working environment residing for twin-core electric energy meter
For normal voltage 60%.
The method of a kind of clock for testing twin-core electric energy meter the most according to claim 1, it is characterised in that: in step
In three, go again to reduce the voltage of working environment residing for twin-core electric energy meter after twin-core electric energy meter runs t1 hour.
The method of a kind of clock for testing twin-core electric energy meter the most according to claim 3, it is characterised in that: wherein,
In rapid three, after reducing the voltage of working environment residing for twin-core electric energy meter or at working environment residing for reduction twin-core electric energy meter
Voltage while carry out reducing the operation of the electric current of working environment residing for twin-core electric energy meter, and record time T6, twin-core electric energy
The electric current actual reduction time T5 that the metering module soft clock of table is recorded and time T6 contrasts, if unanimously, enters step 4, no
Then jump to step 6.
The method of a kind of clock for testing twin-core electric energy meter the most according to claim 4, it is characterised in that: wherein,
Reduce the electric current of working environment residing for twin-core electric energy meter, cause the electric current of working environment residing for twin-core electric energy meter to reduce to normalized current
40%.
The method of a kind of clock for testing twin-core electric energy meter the most according to claim 1, it is characterised in that: wherein,
In step one, after twin-core electric energy meter is connected with PC by its RS485 interface, twin-core electric energy meter is carried out power-on and power-off behaviour
Making, power-on and power-off have operated and have entered back into step 2 afterwards.
The method of a kind of clock for testing twin-core electric energy meter the most according to claim 6, it is characterised in that: to twin-core
It is to be repeated a number of times power-on and power-off operation within the t2 time set that electric energy meter carries out the detailed process of power-on and power-off operation.
The method of a kind of clock for testing twin-core electric energy meter the most according to claim 1, it is characterised in that: in step
In three, after twin-core electric energy meter runs t1 hour, the Clock battery of twin-core electric energy meter is disassembled, then go to reduce twin-core electricity
The voltage of working environment residing for energy table.
The method of a kind of clock for testing twin-core electric energy meter the most according to claim 1, it is characterised in that: in step
In three, run after t1 hour at twin-core electric energy meter, by the Clock battery of twin-core electric energy meter with stop copying battery and all disassemble, then
Remove to reduce the voltage of working environment residing for twin-core electric energy meter.
The method of a kind of clock for testing twin-core electric energy meter the most according to claim 1, it is characterised in that: in step
In rapid three, run after t1 hour at twin-core electric energy meter, by the Clock battery of twin-core electric energy meter with stop copying battery and all disassemble,
Allow twin-core electric energy meter run the most again t2 hour, go the most again to reduce the voltage of working environment residing for twin-core electric energy meter.
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| CN201610634316.5A CN106200353B (en) | 2016-08-03 | 2016-08-03 | A method of the clock for testing twin-core electric energy meter |
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|---|---|---|---|
| CN201610634316.5A CN106200353B (en) | 2016-08-03 | 2016-08-03 | A method of the clock for testing twin-core electric energy meter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108445436A (en) * | 2018-03-01 | 2018-08-24 | 宁波迦南智能电气股份有限公司 | A kind of electric energy meter that twin-core operating status is mutually examined |
| CN113064110A (en) * | 2021-03-17 | 2021-07-02 | 南方电网数字电网研究院有限公司 | Synchronous testing method, device, equipment and medium for double-core intelligent electric meter |
-
2016
- 2016-08-03 CN CN201610634316.5A patent/CN106200353B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108445436A (en) * | 2018-03-01 | 2018-08-24 | 宁波迦南智能电气股份有限公司 | A kind of electric energy meter that twin-core operating status is mutually examined |
| CN108445436B (en) * | 2018-03-01 | 2020-04-10 | 宁波迦南智能电气股份有限公司 | Electric energy meter with double cores for mutual detection of running states |
| CN113064110A (en) * | 2021-03-17 | 2021-07-02 | 南方电网数字电网研究院有限公司 | Synchronous testing method, device, equipment and medium for double-core intelligent electric meter |
| CN113064110B (en) * | 2021-03-17 | 2023-02-17 | 南方电网数字电网研究院有限公司 | Synchronous testing method, device, equipment and medium for double-core intelligent electric meter |
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| Publication number | Publication date |
|---|---|
| CN106200353B (en) | 2018-08-24 |
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