CN104699421B - A kind of table storage medium - Google Patents
A kind of table storage medium Download PDFInfo
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- CN104699421B CN104699421B CN201410705962.7A CN201410705962A CN104699421B CN 104699421 B CN104699421 B CN 104699421B CN 201410705962 A CN201410705962 A CN 201410705962A CN 104699421 B CN104699421 B CN 104699421B
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Abstract
Table storage medium is electrically coupled to the CPU inside table to store and comes from processing data therein, and the storage medium includes nonvolatile memory（NVM）With can unlimited flash memory（MTP）, the NVM is exchanged by parallel serial ports handles data, and the MTP exchanges processing data by SPI interface, wherein the NVM is configured as the first data portion of storage, the MTP is configured as the second data portion of storage.
Description
Technical field
The present invention relates to common block list, especially ammeter, water meter or hotlists, for measuring public energy consumption（Such as water, electricity, heat
It warms up）, especially relate to the energy consumption data memory technology of common block list.
Background technology
High-capacity FLASH is widely used cheap nonvolatile storage on current instrument and meter（NVM）, but FLASH
Greatest drawback is that erasable number is limited, and general FLASH only has 100,000 erasable numbers --- the model having may be lower, is more than
It allows erasable number, device that will be damaged.For the characteristic of FLASH, the way in routine techniques generally has：Using text
The embedded file systems such as part operating system, such as JFFS2, YAFFS2, UBI, these file system have load-balancing function,
Can reasonable memory space dynamic allocation, to avoid certain file writing fixing address, thus balanced entire chip is erasable
Number.It does so, can improve the service life of complete machine, but for more frequent operation and helpless.
When power line AC power have electricity, the data to be stored are saved in RAM, the regular hour is run up to,
It again will be in data conversion storage to FLASH.It operates in this way, is that there is no problem when not having a power failure, can greatly reduce to FLASH's
Erasable number.Majority instrument and meter uses battery or large bulk capacitance as stand-by power supply at present, after detecting that exchange has a power failure,
It is stored data into FLASH by stand-by power supply.It does so and seems that there is no problem, but is inadequate in battery failure or capacitance electricity
When, whens power failure unloading data just will appear data conversion storage not the unloading of all or none method the case where.
Invention content
Technical solution：Table storage medium is electrically coupled to the CPU inside table to store and comes from processing data therein, institute
It includes nonvolatile memory to state storage medium（NVM）With can unlimited flash memory（MTP）, the NVM by going here and there parallel
Processing data are changed in oral sex, and the MTP exchanges processing data by SPI interface, wherein the NVM is configured as the first data of storage
Part, the MTP are configured as the second data portion of storage.
In one embodiment, first data portion includes rate of qualified voltage, electrical power, second data portion
Subpackage is containing electricity, clock CLK.
In one embodiment, the NVM selects FLASH units, the MTP to select FRAM units.
In one embodiment, the CPU is configured as：In a first time interval T1In addition, by the first data portion
Divide in write-in NVM；In this first time interval T1Within, the second data portion is written in MTP.
Further, in a first time interval T1The second time interval T in addition2It is interior, in MTP will be stored in
Two data portions extract, and are written in the NVM.
In one embodiment, the CPU is configured as：In a first time interval T1In addition, by the first data portion
Divide and the second data portion is respectively written into the NVM；In this first time interval T1Within, the second data portion is written
In MTP.
In one embodiment, the CPU is configured as：In a first time interval T1The third time cycle in addition
It is spaced T3It is interior, the first data portion being stored in the NVM and the second data portion are carried out according to preset clock CLK
Merge.
In one embodiment, the CPU is configured as in third time cycle interval T3In addition, it deletes in MTP
The second data portion.
In another embodiment, a kind of common block list is provided, including：CPU, for calculating and handling measurement of the table to energy consumption
Data；A NVM for coupling the CPU is configured as the first data portion of storage；And the coupling CPU's is at least one
MTP is configured as the second data portion of storage, wherein the CPU is configured as being arranged at least one time interval to control
State the storage order of the first data portion and the second data portion.
In one embodiment, first data portion includes rate of qualified voltage, electrical power, second data portion
Subpackage is containing electricity, clock CLK.
In one embodiment, the NVM selects FLASH units, the MTP to select FRAM units.
In one embodiment, the CPU is configured as：Other than a first time interval T1, by the first data portion
Divide in write-in NVM；Within this first time interval T1, the second data portion is written at least one MTP；And at one
First time interval T1In the second time interval T2 in addition, will be stored in the second data portion in this at least one MTP into
Row extraction, is written in the NVM.
In one embodiment, the MTP is configured as including n MTP unit, wherein in (n-1)th time interval Tn-1
Within, n-th of MTP unit stores n-th of block content in second data portion.
In one embodiment, the CPU is configured as：In n-th of time interval TnBetween the third time cycle in addition
Every T3It is interior, the first data portion being stored in the NVM is closed with the second data portion according to preset clock CLK
And.
In yet another embodiment, a kind of method improving common block list data access efficiency is provided, including：It is read by CPU
Energy consumption measurement data are taken, the storage classification of energy consumption measurement data is selected；By the way that first time interval T is arranged1To judge energy consumption
Measurement data is stored to NVM or MTP, if wherein selection store to NVM, extract the first data in the energy consumption measurement data
The NVM is written in part, if selection is stored to MTP, extracts the second data portion in the energy consumption measurement data, writes
Enter the MTP；By the way that the second time interval T is arranged2To judge to store the second data portion into the NVM；And
According to third time cycle interval T3, the first data portion in the NVM and the second data portion will be stored according to pre-
If clock CLK merge.
In one embodiment, first data portion includes rate of qualified voltage, electrical power, second data portion
Subpackage is containing electricity, clock CLK.
In one embodiment, the NVM selects FLASH units, the MTP to select FRAM units.
In one embodiment, the CPU is configured as in third time cycle interval T3In addition, it deletes in MTP
The second data portion.
Description of the drawings
Fig. 1 is the structural schematic diagram of storage medium of the present invention.
Specific implementation mode
Table referring to Fig.1（Such as ammeter）The CPU 3 inside table is electrically coupled to store from therein with storage medium
Data are handled, the storage medium includes NVM 2 and MTP 1, and NVM 2 exchanges processing data, bus speed by parallel serial ports
Up to 133MHz, the MTP by SPI interface exchange processing data, can reach the bus speed of 20MHz, wherein the NVM by with
It is set to the first data portion of storage, the MTP is configured as the second data portion of storage.
In one embodiment, first data portion includes rate of qualified voltage, electrical power, second data portion
Subpackage is containing electricity, clock CLK.
In one embodiment, the NVM selects FLASH units, the MTP to select FRAM units, wherein FRAM units
It is suitble to the frequent read-write of small data quantity, FLASH units that the rolling storage of big data quantity is suitble to become by the caching of FLASH units
Change the data acquired frequently or often through some cycles（Such as 60 minutes）FLASH units are written after collecting, it is mono- to reduce FLASH
The page of member writes number.
In one embodiment, the CPU is configured as：In a first time interval T1In addition, by the first data portion
Divide in write-in NVM；In this first time interval T1Within, the second data portion is written in MTP.
Further, in a first time interval T1The second time interval T in addition2It is interior, in MTP will be stored in
Two data portions extract, and are written in the NVM.
In one embodiment, the CPU is configured as：In a first time interval T1In addition, by the first data portion
Divide and the second data portion is respectively written into the NVM；In this first time interval T1Within, the second data portion is written
In MTP.
In one embodiment, the CPU is configured as：In a first time interval T1The third time cycle in addition
It is spaced T3It is interior, the first data portion being stored in the NVM and the second data portion are carried out according to preset clock CLK
Merge.
In one embodiment, the CPU is configured as in third time cycle interval T3In addition, it deletes in MTP
The second data portion.
In another embodiment, a kind of common block list is provided, including：CPU, for calculating and handling measurement of the table to energy consumption
Data；A NVM for coupling the CPU is configured as the first data portion of storage；And the coupling CPU's is at least one
MTP is configured as the second data portion of storage, wherein the CPU is configured as being arranged at least one time interval to control
State the storage order of the first data portion and the second data portion.
In one embodiment, first data portion includes rate of qualified voltage, electrical power, second data portion
Subpackage is containing electricity, clock CLK.
In one embodiment, the NVM selects FLASH units, the MTP to select FRAM units.
In one embodiment, the CPU is configured as：Other than a first time interval T1, by the first data portion
Divide in write-in NVM；Within this first time interval T1, the second data portion is written at least one MTP；And at one
First time interval T1In the second time interval T2 in addition, will be stored in the second data portion in this at least one MTP into
Row extraction, is written in the NVM.
In one embodiment, the MTP is configured as including n MTP unit, wherein in (n-1)th time interval Tn-1
Within, n-th of MTP unit stores n-th of block content in second data portion.
In one embodiment, the CPU is configured as：In n-th of time interval TnBetween the third time cycle in addition
Every T3It is interior, the first data portion being stored in the NVM is closed with the second data portion according to preset clock CLK
And.
In yet another embodiment, a kind of method improving common block list data access efficiency is provided, including：It is read by CPU
Energy consumption measurement data are taken, the storage classification of energy consumption measurement data is selected；By the way that first time interval T is arranged1To judge energy consumption
Measurement data is stored to NVM or MTP, if wherein selection store to NVM, extract the first data in the energy consumption measurement data
The NVM is written in part, if selection is stored to MTP, extracts the second data portion in the energy consumption measurement data, writes
Enter the MTP；By the way that the second time interval T is arranged2To judge to store the second data portion into the NVM；And
According to third time cycle interval T3, the first data portion in the NVM and the second data portion will be stored according to pre-
If clock CLK merge.
In one embodiment, first data portion includes rate of qualified voltage, electrical power, second data portion
Subpackage is containing electricity, clock CLK.
In one embodiment, the NVM selects FLASH units, the MTP to select FRAM units.
In one embodiment, the CPU is configured as in third time cycle interval T3In addition, it deletes in MTP
The second data portion.
Claims (4)
1. a kind of table storage medium, is electrically coupled to the CPU inside table to store and comes from processing data therein, feature exists
In：The storage medium include nonvolatile memory NVM and can flash memory MTP infinitely, the non-volatile memories
Device NVM exchanges processing data by parallel serial ports, described to exchange processing number by SPI interface by flash memory MTP infinitely
According to, wherein the nonvolatile memory NVM be configured as storage the first data portion, it is described can unlimited flash memory
MTP is configured as the second data portion of storage；
The CPU is configured as：Other than a first time interval T1, nonvolatile memory is written into the first data portion
In NVM；It, can be infinitely in flash memory MTP by the write-in of the second data portion within this first time interval T1；At one
In the second time interval T2 other than first time interval T1, by be stored in can infinitely in flash memory MTP the second number
According to partly extracting, be written in the nonvolatile memory NVM；In the third other than a first time interval T1
Between in period distances T3, the first data portion and the second data portion that will be stored in the nonvolatile memory NVM
It is merged according to preset clock CLK；Other than third time cycle interval T3, deletion can unlimited flash memory
The second data portion in MTP.
2. a kind of table storage medium, is electrically coupled to the CPU inside table to store and comes from processing data therein, feature exists
In：The storage medium include nonvolatile memory NVM and can flash memory MTP infinitely, the non-volatile memories
Device NVM exchanges processing data by parallel serial ports, described to exchange processing number by SPI interface by flash memory MTP infinitely
According to, wherein the nonvolatile memory NVM be configured as storage the first data portion, it is described can unlimited flash memory
MTP is configured as the second data portion of storage；
The CPU is configured as：Other than a first time interval T1, the first data portion and the second data portion are distinguished
In the write-in nonvolatile memory NVM；It, can be unlimited by the write-in of the second data portion within this first time interval T1
In secondary flash memory MTP；In the third time cycle interval T3 other than a first time interval T1, it will be stored in described
Nonvolatile memory NVM in the first data portion merged according to preset clock CLK with the second data portion；
Other than third time cycle interval T3, the second data portion that can infinitely in flash memory MTP is deleted.
3. table storage medium according to claim 1 or 2, it is characterised in that：First data portion includes electricity
It includes electricity, clock CLK to press qualification rate, electrical power, second data portion.
4. table storage medium according to claim 1 or 2, it is characterised in that：The nonvolatile memory NVM is selected
FLASH units, it is described to select FRAM units by flash memory MTP infinitely.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410705962.7A CN104699421B (en) | 2014-12-01 | 2014-12-01 | A kind of table storage medium |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410705962.7A CN104699421B (en) | 2014-12-01 | 2014-12-01 | A kind of table storage medium |
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| CN104699421A CN104699421A (en) | 2015-06-10 |
| CN104699421B true CN104699421B (en) | 2018-08-24 |
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| CN109901787A (en) * | 2017-12-08 | 2019-06-18 | 比亚迪股份有限公司 | The storage of energy-storage battery parameter, read method, device and equipment in energy-storage system |
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| US5473776A (en) * | 1992-02-20 | 1995-12-05 | Hitachi, Ltd. | Data backup method and data processing system having data maintenance function |
| CN102004656A (en) * | 2010-12-11 | 2011-04-06 | 九江中弘电子科技有限公司 | Redundancy backup and security updating technology of vehicle integration information liquid crystal display and control platform |
| CN202939193U (en) * | 2012-11-26 | 2013-05-15 | 哈尔滨理工大学 | Single-phase intelligent multi-user remote cost control electric energy meter |
| CN103500131A (en) * | 2013-09-18 | 2014-01-08 | 华为技术有限公司 | Storage system power-failure data backup method and storage system controller |
-
2014
- 2014-12-01 CN CN201410705962.7A patent/CN104699421B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5473776A (en) * | 1992-02-20 | 1995-12-05 | Hitachi, Ltd. | Data backup method and data processing system having data maintenance function |
| CN102004656A (en) * | 2010-12-11 | 2011-04-06 | 九江中弘电子科技有限公司 | Redundancy backup and security updating technology of vehicle integration information liquid crystal display and control platform |
| CN202939193U (en) * | 2012-11-26 | 2013-05-15 | 哈尔滨理工大学 | Single-phase intelligent multi-user remote cost control electric energy meter |
| CN103500131A (en) * | 2013-09-18 | 2014-01-08 | 华为技术有限公司 | Storage system power-failure data backup method and storage system controller |
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Address after: HOLLEY Technology Park No. 181 310023 Hangzhou city Zhejiang District of Yuhang province Wuchang Avenue Applicant after: HOLLEY METERING LIMITED Address before: HOLLEY Technology Park No. 181 310023 Hangzhou city Zhejiang District of Yuhang province Wuchang Avenue Applicant before: Holley Metering Ltd. |
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Inventor after: Ma Xiaohui Inventor after: Zhao Qiang Inventor after: Wei Ping Inventor after: Xu Yimin Inventor before: Zhao Qiang Inventor before: Wei Ping Inventor before: Xu Yimin |
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