CN106971461A - The collecting method of intelligent electric meter - Google Patents
The collecting method of intelligent electric meter Download PDFInfo
- Publication number
- CN106971461A CN106971461A CN201710154292.8A CN201710154292A CN106971461A CN 106971461 A CN106971461 A CN 106971461A CN 201710154292 A CN201710154292 A CN 201710154292A CN 106971461 A CN106971461 A CN 106971461A
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- China
- Prior art keywords
- task
- saltus step
- power load
- intelligent electric
- electric meter
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F15/00—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity
- G07F15/06—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity with means for prepaying basic charges, e.g. rent for meters
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
The invention provides a kind of collecting method of intelligent electric meter, including Interruption task, per Task per second and millisecond task, changed by monitoring transmission of electricity porch power load in real time, the frequent for entering thousands of times of lines per second to the transient changing of voltage, the magnitude of current are accurately sampled, and kept in the transient data of collection in the internal storage region of ammeter microprocessor, external memory storage is dumped to again, improves the ability of data processing and storage；Monitoring to load saltus step event, realizes the power load and situation of change of monitoring user's premises in real time.Than other independent load monitoring devices, the present invention is integrated with intelligent electric meter function, without extra increase monitoring device, without separately installing, with higher economy, practicality and reliability.
Description
Technical field
The present invention relates to the collecting method of the technical field of data acquisition, more particularly to intelligent electric meter.
Background technology
The indoor electrical equipment of user can cause total active power, voltage, electric current in transmission of electricity porch etc. in access and cut-out
The change of signal, wherein including substantial amounts of load characteristic information.Because the working condition of different load has corresponding electric
Characteristic, if load monitoring device can be installed in electric flux porch, the information such as power, voltage and current to changing moment is carried out
High frequency sampling and storage, i.e., the classification and identification finally realized with analysis to electrical equipment possibly through calculating.
At present, intelligent electric meter has been widely used, and is typically mounted directly on the entry position of custom power supply, main
It is responsible for that total electric flux that user consumes is measured and stored, meets the primary demand that electric power enterprise calculates expense charge.Intelligence
Ammeter is as the natural electrical gateway of user's house, if being undoubtedly optimal selection as load monitoring device.Currently make extensively
Although intelligent electric meter can perceive the change of user power utilization general power, do not possess voltage, the electric current to power saltus step moment
Carry out the ability of high frequency sampling, it is impossible to catch the instantaneous signal feature of load variations, it is impossible to meet household electricity load monitoring
Demand.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of collecting method of intelligent electric meter, have intelligent electric meter
Standby load monitoring function, without extra increase monitoring device, without separately installing, with higher economy, practicality and can
By property.
The technical solution adopted for the present invention to solve the technical problems is：The collecting method of intelligent electric meter, the intelligence
Energy ammeter includes microprocessor and external memory storage, and the microprocessor includes internal storage region, and this method includes：
Interruption task, timer interruption is triggered by the first predeterminated frequency, record current voltage and electric current number when interrupting every time
According to internal storage region；
Per Task per second, preset time is arrived in delay, judges whether current power load hop value is more than or equal to predetermined power value, if
It is then to mark power load saltus step event to occur, delay time resets restatement, when record current power load saltus step event occurs
Between, current power value and power load saltus step logout end address；
Millisecond task 1, judges whether power load saltus step event occurs, if it is not, millisecond task 2 is then performed, if so, then recording work(
Data of the rate load saltus step event in preset time range, if completing, start new record, if not completing, perform millisecond
Task 2；
Millisecond task 2, by the second predeterminated frequency, judges whether are the current voltage and current data number of times that are recorded in internal storage region
More than preset times, if so, then by the data Cun Chudao external memory storages of internal storage region, if it is not, then jumping out judgement.
More preferably, the external memory storage is ferroelectric memory.
More preferably, the power load hop value is instantaneous power value and the difference of N seconds power average values, N before>=2.
More preferably, data storage of the recording power load saltus step event in preset time range in the millisecond task 1
In external memory storage.
More preferably, methods described also includes reading data task, judges whether power load saltus step event occurs, if so,
Then readout power load saltus step logout.
The beneficial effects of the invention are as follows：The invention provides a kind of collecting method of intelligent electric meter, by timing
Disconnected task, per Task per second and millisecond task, in the standard base of existing state's net intelligent electric meter, the data for improving bottom are adopted
Sample technology, adds data processing, storage, the ability of transmission, the treatment mechanism of transient data is established, by intelligent electric meter function
Extension is promoted to electrical gateway equipment, and the power load and situation of change of user's premises can be monitored in real time.By monitoring in real time
Porch power load of transmitting electricity change, the frequent that thousands of times of lines per second is entered to the transient changing of voltage, the magnitude of current are accurately sampled,
And kept in the transient data of collection in the internal storage region of ammeter microprocessor, then external memory storage is dumped to, improve
Data processing and the ability of storage.Than other independent load monitoring devices, the present invention is integrated in intelligent electric meter function
Together, without extra increase monitoring device, without separately installing, with higher economy, practicality and reliability.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the collecting method of intelligent electric meter of the embodiment of the present invention.
Embodiment
The present invention is further described with reference to the accompanying drawings and examples.
Embodiment：
As shown in figure 1, carrying out high frequency to information such as instantaneous electrical power, the voltage and currents of change to allow intelligent electric meter to meet
Sampling and the requirement of storage, the intelligent electric meter include microprocessor and external memory storage, and microprocessor includes internal storage region, this
Invention provides a kind of collecting method of intelligent electric meter, and specific workflow is as follows：
Device power, system brings into operation, and microprocessor starts timing, No. 1500 timers of triggering per second by timer interruption
Interrupt, each interruption logging current voltage and current data to RAM areas.
In system operation major cycle, the 5 milliseconds of triggerings of millisecond task once, judge the current voltage of interruption logging in RAM areas
Current data number of times, if more than 50 times, by internal storage region data Cun Chudao external memory storages (FRAM), if not exceeded,
Then jump out judgement.
During system operation major cycle is per Task per second, delay judges whether power load saltus step is more than 50W change for 20 seconds, if
Occurs 50W change, then set power load saltus step event occurs, delay time, which is reset, restarts timing, records current work(
Rate load saltus step Time To Event, current power and power load saltus step logout end address.
In system operation major cycle millisecond task, judge whether power load saltus step event occurs, if there is current event hair
It is raw, then judge the completion in 3 seconds of power load saltus step logout, if completing, restart new record address, jump to major cycle.
Current power load saltus step logout content is all carrying out data sampling and is being stored in external memory storage always
(FRAM) in, to be further continued for when detecting load saltus step store 2 second datas（It is settable）, store altogether before load saltus step 1 second
2 second datas after data and load saltus step.Then the sampling and storage of data next time are proceeded by, sampling and storage are while entering
Capable.
In system operation, serial data is received using interrupt mode, serial ports, which is received, to interrupt after generation, determines whether
Receive data.
System is received after data by interrupt mode, checking data validation and correlation, is confirmed whether it is copy reading sheet
The related data of table, reads related data and carries out response reply.
When power load saltus step event log data, saltus step record data several times in copy reading, searching data storage are confirmed
Address, all point datas in 3 seconds are read by the power load saltus step logout end address stored before.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (5)
1. the collecting method of intelligent electric meter, the intelligent electric meter includes microprocessor and external memory storage, the microprocessor
Device includes internal storage region, it is characterised in that this method includes：
Interruption task, timer interruption is triggered by the first predeterminated frequency, record current voltage and electric current number when interrupting every time
According to internal storage region；
Per Task per second, preset time is arrived in delay, judges whether current power load hop value is more than or equal to predetermined power value, if
It is then to mark power load saltus step event to occur, delay time resets restatement, when record current power load saltus step event occurs
Between, current power value and power load saltus step logout end address；
Millisecond task 1, judges whether power load saltus step event occurs, if it is not, millisecond task 2 is then performed, if so, then recording work(
Data of the rate load saltus step event in preset time range, if completing, start new record, if not completing, perform millisecond
Task 2；
Millisecond task 2, by the second predeterminated frequency, judges whether are the current voltage and current data number of times that are recorded in internal storage region
More than preset times, if so, then by the data Cun Chudao external memory storages of internal storage region, if it is not, then jumping out judgement.
2. the collecting method of intelligent electric meter according to claim 1, it is characterised in that the external memory storage is iron
Electrical storage.
3. the collecting method of intelligent electric meter according to claim 1, it is characterised in that the power load hop value
For instantaneous power value and the before difference of N seconds power average values, N>=2.
4. the collecting method of intelligent electric meter according to claim 1, it is characterised in that remember in the millisecond task 1
Data storage of the power load saltus step event in preset time range is recorded in external memory storage.
5. the collecting method of intelligent electric meter according to claim 1, it is characterised in that methods described also includes reading
Data task, judges whether power load saltus step event occurs, if so, then readout power load saltus step logout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710154292.8A CN106971461A (en) | 2017-03-15 | 2017-03-15 | The collecting method of intelligent electric meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710154292.8A CN106971461A (en) | 2017-03-15 | 2017-03-15 | The collecting method of intelligent electric meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106971461A true CN106971461A (en) | 2017-07-21 |
Family
ID=59329300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710154292.8A Pending CN106971461A (en) | 2017-03-15 | 2017-03-15 | The collecting method of intelligent electric meter |
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| CN (1) | CN106971461A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843870A (en) * | 2017-11-27 | 2018-03-27 | 深圳市科陆电子科技股份有限公司 | A kind of method and system for detecting ammeter metering load curve and correcting errors |
| CN112649664A (en) * | 2020-12-16 | 2021-04-13 | 国网宁夏电力有限公司营销服务中心(国网宁夏电力有限公司计量中心) | Power consumption collection device and system |
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| CN112649664A (en) * | 2020-12-16 | 2021-04-13 | 国网宁夏电力有限公司营销服务中心(国网宁夏电力有限公司计量中心) | Power consumption collection device and system |
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Application publication date: 20170721 |