CN110400422A - A kind of electric energy meter charging method - Google Patents
A kind of electric energy meter charging method Download PDFInfo
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- CN110400422A CN110400422A CN201910558664.2A CN201910558664A CN110400422A CN 110400422 A CN110400422 A CN 110400422A CN 201910558664 A CN201910558664 A CN 201910558664A CN 110400422 A CN110400422 A CN 110400422A
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- electric energy
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/08—Payment architectures
- G06Q20/14—Payment architectures specially adapted for billing systems
- G06Q20/145—Payments according to the detected use or quantity
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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
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Abstract
The invention belongs to electric energy meter charging method technical fields, more particularly to being a kind of electric energy meter charging method, technical process are as follows: after electric energy meter, which detects, to be powered on, the state of deducting fees before electric energy meter power down is differentiated, it does not deduct fees before electric energy meter power down, operation of deducting fees is implemented to the residual amount in ESAM；It deducted fees before electric energy meter power down, to in ESAM residual amount and power down before the amount of money that backs up be compared and CRC check, it deducts fees success, without operation, it deducts fees failed, re-start operation of deducting fees, electric energy list procedure operates ESAM use reliable processing mode during power down: when a loss of power is detected, MCU first judges current MCU working condition, when detecting to ESAM operation, stop the operation to ESAM, and record current power expense and status word, it detects when not operated to ESAM, records present operating state word.
Description
Technical field:
The invention belongs to electric energy meter charging method technical fields, and in particular to be a kind of electric energy meter charging method, can solve
Certainly electric energy meter successfully cannot deduct fees and repeat the problem of deducting fees.
Background technique:
Electric energy meter uses the energy storage of electrolytic capacitor for ESAM (embedded safe control module) power supply during power down, when use
Clock battery is MCU (micro-control unit) power supply.When electric energy meter detects power down, MCU initiates instruction and executes the behaviour that deducts fees to ESAM
Make, after ESAM deducts fees successfully, and electrolytic capacitor energy storage is just in exhausting at this time, and ESAM fails will deduct fees result return MCU, MCU
ESAM is mistakenly considered to deduct fees not successfully.When electric energy meter powers on again, MCU judges the residual amount of unread ESAM, MCU
ESAM fee deduction instruction is sent again, leads to that the amount of money in ESAM is carried out to repeat to deduct fees, the residual amount in ESAM is caused to be lower than
The residual amount of EEPROM.There is deducting fees wrong reason mainly in following factor: (1) abnormal meter of deducting fees occurs, in hardware
Its power supply redundancy scarce capacity of aspect major embodiment is that the energy storage section in power circuit arranges unreasonable cause.Work as power grid
When voltage is frequent power down and powers on, the electrolytic capacitor energy storage in power-supply system is insufficient, when there is power loss event, using falling
Dump energy supply in electric moment electrolytic capacitor is completed to operate ESAM and other hardware circuits, will occur electricity at this time
Dump energy can not supply the case where operation of the peripheral hardwares such as ESAM is completed completely in solution capacitor, so that MCU cannot correctly be read
ESAM deduct fees as a result, and MCU not backed up to residual amount, when powering on again, MCU, which is re-started, to deduct fees, so
Back and forth, the generation that ESAM repeats the case where deducting fees is caused；(2) amount of money, which bears the phenomenon that jumping, when frequently powering off can determine electric energy
The power down of table deducts fees process there are major defect, and reason has two: first is that power down is deducted fees, process is defective, when operating ESAM after power down
Between do not consider stay allowance, second is that not carrying out correction process to stored value card when powering on, cause to repeat to deduct fees.When MCU is detected
When to power loss event, MCU completes the operation of deducting fees to ESAM using the dump energy in electrolytic capacitor, and does not have on software
There are the correction process of stored value card, the only state recording to ESAM operation.Electric energy meter detects when powering on, and MCU is to shape of deducting fees
State is simply read, and does not carry out verification correction process to stored value card, when deduct fees state recording mistake when occur weight
The occurrence of deducting fees again.Electric energy meter in the prior art restores in data management mode, data backup mechanism and parameter error correction
Existing defects in terms of mechanism: the data interaction and management of the parameters such as rate electricity price go wrong, and influence the operation of rate electric price parameter
Correctness；The back mechanism of parameter is incomplete in program processing, it cannot be guaranteed that the reliability of parameter；Operating parameter error correction machine
System goes wrong, can not discriminant parameter correctness and timely correction.For example, one disclosed in Chinese patent 201610227994.X
Kind intelligent electric meter charging method is comprising steps of S1: parameter of deducting fees is inputted in intelligent electric meter, the parameter of deducting fees includes item of deducting fees
Mesh and corresponding time and the amount of money of deducting fees of deducting fees of project of deducting fees；S2: intelligent electric meter inspects periodically deduct fees project and the button of enabling
Take the period；S3: check whether intelligent electric meter remaining sum is sufficient, if it is, entering step S4；S4: whether detection is currently to deduct fees
Time；S5: if step S4 judging result be it is yes, execute corresponding fee deduction and operate and store record of deducting fees；S6: intelligent electric meter will
Record of deducting fees uploads to cloud；The project of deducting fees includes house lease expense and/or management for infrastructure fee and/or water rate and/or electricity
Take and/or combustion gas expense, the corresponding amount of money of deducting fees of the project of deducting fees is the Flat Amount being stored in intelligent electric meter or artificial defeated
The amount of money or intelligent electric meter for entering intelligent electric meter receive the amount of money from cloud, and the step S3 specifically further includes sub-step: being checked
Whether intelligent electric meter remaining sum is sufficient, if it is not, then prompt user supplements with money, step S6 specifically includes sub-step: S61, intelligent electric meter
The record that will first deduct fees uploads to mobile terminal, then uploads to cloud platform center by the mobile terminal record that will deduct fees；S62, intelligence electricity
The table record that will directly deduct fees uploads to cloud platform center, and the method also includes steps: S7: cloud platform center to deduct fees record into
Row storage, and notify that user deducts fees situation.Therefore, a kind of electric energy meter charging method is designed, cannot successfully be buckled with solving electric energy meter
The problem of expense and repetition are deducted fees, there is social value and application prospect very much.
Summary of the invention:
It is an object of the invention to overcome disadvantage of the existing technology, seeks to design a kind of electric energy meter charging method, adopt
With reliable data check mode and the error correction preventing mechanism for powering on load electricity, multiple types and prepare more part are carried out to electricity data
Processing.
To achieve the goals above, the technical process of electric energy meter charging method of the present invention are as follows: when electric energy meter detects
To after powering on, the state of deducting fees before electric energy meter power down is differentiated, is not deducted fees before electric energy meter power down, to surplus in ESAM
The remaining amount of money implements operation of deducting fees；Deducted fees before electric energy meter power down, in ESAM residual amount and power down before the gold that backs up
Volume is compared and CRC check, success of deducting fees, and without operation, deducts fees failed, re-starts operation of deducting fees.
Electric energy meter charging method of the present invention uses high reliability CRC16 highly fault tolerant (cyclic redundancy check code) school
Binding characteristic value judges while testing, and memory write runs secure authentication mechanisms when operating, and prevents unexpected data writing operation.
Electric energy meter charging method of the present invention carries out double copies to data, and electricity Backup Data is divided into: the RAM of MCU
The major and minor two parts of electricity datas of memory, E2Prom memory electricity data is divided into: power down memory block electricity data and every degree electricity electricity
Backup Data is measured, every conventional electricity Backup Data of degree electricity is divided into: backing up in turn in two regions；According to backup when powering on load electricity
The priority of data judges one by one, until recovering correct data.
Electric energy meter charging method of the present invention is surveyed by whitepack emulation testing, functional test and analog hardware failure
Examination shows that normally and under abnormal conditions parameter processing is accurate for electricity processing under abnormal condition.
The parameter management of electric energy meter charging method of the present invention is managed collectively using control data corporation, and parameter changes
Change is uniformly allocated, and prevents abnormal cause from parameter being caused to be changed；Supplemental characteristic uses RAM and E2The mode of PROM backup,
And stipulated that priority orders, judge step by step, guarantee parameter is right value.
Electric energy meter charging method timing of the present invention judges the legitimacy of parameter and calls back mechanism.
The electric energy meter longtime running of electric energy meter charging method of the present invention is tested, and is tested including supplementing with money, recharge amount
Accumulative, remaining capacity, tripartite implement, and corresponding inspection record and documentary evidence are generated after test ending.
Compared with prior art, the present invention having fully considered the allowance of electrolytic capacitor, tests, advising repeatedly by actual
Within the scope of fixed temperature, remain to that corresponding hardware is maintained to complete operation, the power supply of ESAM after MCU detects that electric energy meter enters power down
Part is controlled by MCU, and when electric energy meter does not need to operate ESAM, MCU further drops the dump of ESAM
Low-power consumption increases the stability of product；The part that power down process is carried out for MCU, can accomplish the detection in advance of power down, avoid
The situation of detection of power loss bring power down process sluggishness is only done at MCU power supply: when detecting supply voltage lower than specific work
When making voltage range, electric energy meter carries out preservation work to relevant parameter, stops the operation to hardware circuit, and voltage return is waited to arrive
When normal working voltage range, then carry out corresponding operating；While making a clean sweep of electricity before detection, increased in MCU minimum system
Supply voltage detection chip carries out respective backup to data and stops the behaviour to hardware when MCU operating voltage occurs abnormal
Make；Two kinds of detection of power loss cooperate, and when a kind of detection of power loss mode breaks down, MCU is by another detection of power loss mode
Continuation accurately works, and enhances reliability；Electric energy list procedure operates ESAM use reliable processing mode during power down:
When a loss of power is detected, MCU first judges current MCU working condition, when detecting to ESAM operation, stopping pair
The operation of ESAM, and current power expense and status word are recorded, detect that record operates at present when not operating to ESAM
Status word；When there is power-down conditions generation, to status word, electricity consumption situation, deduct fees before after the amount of money and the amount of money of deducting fees carries out double copies
Into low power consumpting state, electric energy meter is waited to power on.
Detailed description of the invention:
Fig. 1 is that power down of the present invention is deducted fees flow diagram.
Fig. 2 is power down process flow diagram of the present invention.
Fig. 3 is electricity backup flow diagram of the present invention.
Specific embodiment:
The present invention is described further below by embodiment and in conjunction with attached drawing.
Embodiment 1:
When the electric energy meter charging method test that the present embodiment is related to, firstly, having filled 500 yuan of electricity charge, scala media to electric energy meter
Ladder is set as two values of 50kWh and 200kWh, and step price is set to 0.3 yuan/kWh, 0.4 yuan/kWh and 0.5 yuan/kWh, so
Afterwards, by dry run in 1 month, power-on and power-off, the frequent power down for during which interting not timing are powered on and are had good luck using equipment electricity consumption,
Electric energy meter is set to accumulate total electricity consumption 300kWh, finally, calculating according to step price, the electricity charge of generation should be 50 × 0.3+150
× 0.4+100 × 0.5=125 member, actually deducts fees 125 yuan, remaining practical 375 yuan of the electricity charge of electric energy meter, complies fully with design specification,
It does not repeat to deduct fees or deduct fees less.
Claims (4)
1. a kind of electric energy meter charging method, it is characterised in that technical process are as follows: after electric energy meter, which detects, to be powered on, fall to electric energy meter
The state of deducting fees before electricity is differentiated, is not deducted fees before electric energy meter power down, implements operation of deducting fees to the residual amount in ESAM；
Deducted fees before electric energy meter power down, in ESAM residual amount and power down before the amount of money that backs up be compared and CRC check,
Success of deducting fees deducts fees failed without operation, re-starts operation of deducting fees.
2. electric energy meter charging method according to claim 1, it is characterised in that using binding characteristic while CRC16 verification
Value judgement, memory write run secure authentication mechanisms when operating.
3. electric energy meter charging method according to claim 1, it is characterised in that carry out double copies, electricity backup number to data
According to being divided into: the major and minor two parts of electricity datas of the RAM memory of MCU；E2Prom memory electricity data is divided into: power down memory block electricity
Measure data and every degree power consumption Backup Data；Every conventional electricity Backup Data of degree electricity is divided into: backing up in turn in two regions；It powers on and adds
Judged one by one when carrying electricity according to the priority of Backup Data, until recovering correct data.
4. electric energy meter charging method according to claim 1, it is characterised in that parameter management is united using control data corporation
One management, the change of parameter are uniformly allocated；Supplemental characteristic uses RAM and E2The mode of PROM backup is, it is specified that priority is suitable
Sequence judges step by step.
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| CN201910558664.2A CN110400422A (en) | 2019-06-26 | 2019-06-26 | A kind of electric energy meter charging method |
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| CN201910558664.2A CN110400422A (en) | 2019-06-26 | 2019-06-26 | A kind of electric energy meter charging method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114487588A (en) * | 2021-12-22 | 2022-05-13 | 青岛乾程科技股份有限公司 | High-precision fee deduction method and assembly for electric energy meter based on FRAM |
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| US7707376B2 (en) * | 2006-10-06 | 2010-04-27 | Konica Minolta Business Technologies, Inc. | Verifying the validity of data saved at power down by comparing the time of save to time of power-off upon start up |
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Application publication date: 20191101 |