CN103439554A - Data backward-reading and storing device and system thereof - Google Patents
Data backward-reading and storing device and system thereof Download PDFInfo
- Publication number
- CN103439554A CN103439554A CN2013104020620A CN201310402062A CN103439554A CN 103439554 A CN103439554 A CN 103439554A CN 2013104020620 A CN2013104020620 A CN 2013104020620A CN 201310402062 A CN201310402062 A CN 201310402062A CN 103439554 A CN103439554 A CN 103439554A
- Authority
- CN
- China
- Prior art keywords
- data
- module
- time
- memory
- control module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention provides a data backward-reading and storing device and system thereof. The data backward-reading and storing device comprises: a metering module which is used for acquiring data of at least more than one of power, electric quantity, current and voltage in real time; a control module which is connected with the metering module; a communication module which is connected with the control model; a clock module which is connected with the control module and calibrates current time via the control module and the communication module; and a storage module which is connected with the control module. Timing data freezing is performed by the control module according to current time and presupposed time intervals, and the frozen data and time of data freezing are stored from the metering module and the clock module to the storage module. Data are measuring and acquired in real time by the device. Besides, the data is frozen according to the presupposed time intervals so as to ensure continuity, security and integrity of the data. Furthermore, previous data can be backward read rapidly so that system overhead is reduced.
Description
Technical field
The present invention relates to a kind of data readback field, relate in particular to a kind of data readback and memory storage, and relate to a kind of data readback and storage system.
Background technology
At present existing ammeter is by measuring real-time electrical quantity data, as electric current, voltage, power, power factor (PF) and meritorious/data such as reactive energy, and host computer reads by certain communications protocol the real time data that current ammeter is measured, this existing mode exists following defect and deficiency: first, in the application of real-time monitoring type, if occur in communication process that for example communication line disconnects extremely, under the analogues such as upper Host Shutdown, by the data of losing in exception procedure; Second, real-time monitoring to ammeter needs host computer frequently ammeter to be carried out to read operation, such as be spaced apart the words that read in 5 minutes according to monitoring period, within every 5 minutes, host computer need to be read and write one time all ammeters of whole network, so just increased system overhead and may cause system busy, in addition network reliability has been had relatively high expectations.
Summary of the invention
Technical matters to be solved by this invention is that a kind of data readback and memory storage that prevents loss of data and reduce the read-write number of times need to be provided.
To this, the invention provides a kind of data readback and memory storage, comprising:
Metering module, described metering module is at least one above data of Real-time Collection power, electric weight, electric current and voltage;
Control module, described control module is connected with metering module;
Communication module, described communication module is connected with control module;
Clock module, described clock module is connected with control module, and by control module and communication module calibration current time; And,
Memory module, described memory module is connected with control module;
Wherein, described control module is carried out data-frozen regularly according to current time and the time interval set, and the data and the freeze-off time thereof that freeze are stored into memory module from metering module and clock module.
Described metering module, at least one above data of Real-time Collection power, electric weight, electric current and voltage, belongs to the electrical quantity data acquisition module; Described control module is main control unit, is responsible for the setting command at time of reception interval, and the data of at the official hour interval, needs being freezed according to setting command store into memory module from metering module, realizes the master control function to data storage and retaking of a year or grade; Described communication module, for realizing and the communication of external unit, can be realized communication by wired or wireless mode, and wired mode is as RS485, and wireless mode is as zigbee etc.; Described clock module is by control module and communication module calibration current time, and for the sign as the storage data, clock module is accepted the clock alignment order by communication module, and calibrates the current time by control module; Described memory module can be the nonvolatile memories such as EEPROM or Flash, and its memory space can be regulated according to actual needs; Described data-frozen, preserve at name a person for a particular job time and corresponding continuous data of this time of the time interval set.
In prior art, ammeter or other measuring apparatus are nearly all for realizing the function of real-time data collection, and electrical network or a certain system the inside, there will be unavoidably that communication line disconnects or the situation that host computer is closed, so will the holiday data; And, to the real-time monitoring of ammeter, also need host computer frequently ammeter to be carried out to read operation, so, just higher for the requirement of host computer, make the expense of system very large simultaneously; In this case, not only make cost raise, also can't meet the purpose of the concrete course of work data of user monitoring and management, also do not possess the function of retaking of a year or grade data.
And the invention belongs to a kind of Novel measuring device, except the function of the real-time measurement image data that provides general ammeter to possess, in addition also in real-time measurement and image data, according to the time interval freezing data set, and time and freezing data are stored in memory module according to certain way, therefore, the data of different time points can be retrieved and be read according to concrete needs to host computer.
Even in the communication abnormality situation, or when host computer can't read current measurement data, data readback of the present invention and memory storage also can normal recordings under current collection and the data that measure, and time and data are stored in memory module according to the time interval set, after communication is normal, host computer can read the data that the abnormal time section is lost, and guarantees continuity, security and the integrality of data; On this basis, the present invention returns host computer a kind of another kind of reading manner except real-time reading out data is provided, it is the retaking of a year or grade function of data before, such as, if the time interval set is 5 minutes, the present invention is except within every 5 minutes, reading as required in network all data readbacks and memory storage node, can also take each hour to read the mode that in previous hour, the freezing zone data once (comprise 12 groups of data), so just, can very effectively reduce the reading frequency of host computer to network, reduce the expense of whole system.And, for retaking of a year or grade time of the data in memory module, can be arranged according to amount of capacity and the actual needs of memory module fully, and then avoid as far as possible the frequent operation of host computer, guarantee work efficiency.
Further improvement of the present invention is, described control module is MCU, and described MCU receives the outside order that arranges by communication module.MCU receives the order that arranges of outside transmission by communication module, as host computer send order is set after, the current time that will provide according to clock module and the time interval of setting store data in memory module, such as the current time is 12:00, the time interval is 5 minutes, freeze-off time point is 12:00,12:05,12:10,12:15, by that analogy; Described freezing data has comprised the data with date and time, and each freeze-off time is put corresponding one group of data; MCU can be by the current time of communication module and upper machine communication and then calibration clock module.
Further improvement of the present invention is, the nonvolatile memory that described memory module is EEPROM or Flash, and the memory space of described memory module is regulated according to actual needs.According to actual needs the memory space of memory module is rationally controlled, not only can effectively be reduced costs, can also control as the case may be the data volume of storing, reduce the management difficulty for data volume, promote the retaking of a year or grade efficiency to data.
Further improvement of the present invention is, described clock module is provided with backup battery, and after power down, described clock module is powered by backup battery and then guaranteed its normal operation.The present invention is usingd the time and is stored data in memory module as sign, so, and correctness that just must the assurance time, and by the setting of backup battery, after power down, clock module still can normally move, and has guaranteed time correctness.Clock module is provided with backup battery, and after power down, described clock module is powered by backup battery, guarantees that clock module still can work when power down, and then guarantees the accurate of system time operation.
Further improvement of the present invention is, electric main converts direct current 5.7V to after by the rectification step-down and is connected to the power supply VRTC of described clock module by diode D5 forward, simultaneously the power supply VRTC of clock module by diode D6 Opposite direction connection to backup battery BT1; When mains-supplied, the voltage 3.7V that 5.7V voltage provides higher than backup battery BT1, now D5 conducting D6 cut-off, clock module passes through mains-supplied; When the civil power power down, the 5.7V power supply is down to 0V, lower than backup battery BT1 voltage 3.7V, and now D6 conducting D5 cut-off, backup battery BT1 powers to clock module by the D6 conducting; The power supply VCC of described control module is connected to the emitter of diode D6 by wire jumper resistance R 9.
At first system power supply part is by commercial power rectification and be depressured to 5.7V, and is connected with the power supply VRTC of clock module by diode D5, and backup battery BT1 is connected with clock module power supply VRTC by D6.In the mains-supplied situation, 5.7V voltage, higher than backup battery BT1 voltage 3.7V, makes diode D5 conducting, diode D6 cut-off, and clock module can be by mains-supplied work and calibration current time; Under power-down conditions, the near 0V of 5.7V voltage, backup battery BT1 voltage is 3.7V, makes diode D5 cut-off, diode D6 conducting, clock module is realized to the power supply of clock module with to the calibration of current time by backup battery BT1.And, the power supply VCC of described control module is connected to the emitter of diode D6 by wire jumper resistance R 9, just can whether backup battery be set by the self-defined selection control module of wire jumper resistance R 9, improve security performance, stability and the human oriented design thereof of product.
Further improvement of the present invention is, described clock module comprises clock chip RX8025T, and the pin two of described clock chip RX8025T and pin one 3 are connected to respectively the power supply VCC of control module by pull-up resistor R6 and R7; Pin one 1 ground connection of described clock chip RX8025T; The pin 6 of described clock chip RX8025T is connected to the power supply VRTC of clock module; The power supply VRTC of described clock module is by capacitor C 13 ground connection.Described capacitor C 13 can play the effect of filtering interfering to the power supply VRTC of clock module, make the power supply of clock module more stable.
Further improvement of the present invention is, described communication module comprises the RS485 transmission circuit, the receiving cable of described RS485 transmission circuit and transmission channel are connected to RS485 interface chip U2 by optocoupler respectively, and the output terminal of RS485 interface chip U2 is connected to interface circuit; Wherein, the receiving cable of described RS485 transmission circuit and the equal default setting of the control signal of transmission channel are low level, after control module receives outside read signal, communication module all is set to high level by the control signal of the receiving cable of RS485 transmission circuit and transmission channel.
The receiving cable of described RS485 transmission circuit and the equal default setting of the control signal of transmission channel are low level, make RS485 transmission circuit acquiescence in accepting state, and then constantly receive the data that metering module gathers; After control module receives outside read signal, communication module all is set to high level by the control signal of the receiving cable of RS485 transmission circuit and transmission channel, make the RS485 transmission circuit become emission state, control module just can send the required data of external unit by communication module; So, under the collaborative work of control module and communication module, guaranteed continuity and the complete safety of data.
Further improvement of the present invention is, described memory module is stored time of origin and the freezing data thereof freezed by the storehouse order, and the described time of origin freezed is to cause in the time interval by current time and setting; Each group data of memory module storage, time when correspondence is freezed to cause and freezing data, the time data that the time while freezing is 3 registers, the time data difference of these 3 registers corresponding second minute, time and month year; Each register in memory module all has with data and is address one to one.So, for wanting the retaking of a year or grade data of section sometime, as long as find this time period time and/address can easily realize that retaking of a year or grade transfers data.
The present invention also provides a kind of data readback and storage system, comprises host computer and above-mentioned data readback and memory storage; Described host computer sends order is set control module by communication module, and the control module data that the set time interval is freezed needs according to the order of host computer store into memory module from metering module; During the data of described host computer in the retaking of a year or grade memory module, the data of specified time period are carried out to retaking of a year or grade according to the time interval of current time and setting.
Further improvement of the present invention is, described host computer arranges the time interval of data readback and memory storage and the data that need to freeze by the modbus agreement, and the data that described needs freeze comprise at least one data in power, electric weight, electric current and voltage.
Compared with prior art, beneficial effect of the present invention is: except the function that real-time measurement image data is provided, also in real-time measurement and image data, according to the time interval freezing data set, even in the situation that communication abnormality or can't read current measurement data for some reason at host computer, also time and freezing data can be stored in memory module according to certain way, therefore, host computer can be retrieved and be read the data of different time points according to concrete needs, guaranteed continuity, security and the integrality of data; On this basis, the present invention returns host computer a kind of another kind of reading manner except real-time reading out data is provided, and the function of data before fast effective retaking of a year or grade, reduced the frequent degree that host computer operates, and reduced system overhead.
The accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of the present invention;
Fig. 2 is the circuit connection diagram of the clock module of an embodiment of the present invention;
Fig. 3 is the circuit connection diagram of the communication module of an embodiment of the present invention;
Fig. 4 is the circuit connection diagram of the memory module of an embodiment of the present invention;
Fig. 5 is the circuit connection diagram of the backup battery feed circuit of an embodiment of the present invention clock module;
Fig. 6 is the freezing data district form schematic diagram of an embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, preferably embodiment of the present invention is described in further detail.
Embodiment 1:
As shown in Figure 1, this example provides a kind of data readback and memory storage, comprising:
Metering module, described metering module is at least one above data of Real-time Collection power, electric weight, electric current and voltage;
Control module, described control module is connected with metering module;
Communication module, described communication module is connected with control module;
Clock module, described clock module is connected with control module, and by control module and communication module calibration current time; And,
Memory module, described memory module is connected with control module;
Wherein, described control module is carried out data-frozen regularly according to current time and the time interval set, and the data and the freeze-off time thereof that freeze are stored into memory module from metering module and clock module.
Described metering module, at least one above data of Real-time Collection power, electric weight, electric current and voltage, belongs to the electrical quantity data acquisition module; Described control module is main control unit, is responsible for the setting command at time of reception interval, and the data of at the official hour interval, needs being freezed according to setting command store into memory module from metering module, realizes the master control function to data storage and retaking of a year or grade; Described communication module, for realizing and the communication of external unit, can be realized communication by wired or wireless mode, and wired mode is as RS485, and wireless mode is as zigbee etc.; Described clock module is by control module and communication module calibration current time, for the sign as the storage data; Described memory module can be the nonvolatile memories such as EEPROM or Flash, and its memory space can be regulated according to actual needs; Described data-frozen, preserve at name a person for a particular job time and corresponding continuous data of this time of the time interval set.
This example belongs to a kind of Novel measuring device, except the function of the real-time measurement image data that provides general ammeter to possess, in addition also in real-time measurement and image data, according to the time interval freezing data set, and time and freezing data are stored in memory module according to certain way, therefore, the data of different time points can be retrieved and be read according to concrete needs to host computer.
Even in the communication abnormality situation, or when host computer can't read current measurement data, the data readback that this is routine and memory storage also can normal recordings under current collection and the data that measure, and time and data are stored in memory module according to the time interval set, after communication is normal, host computer can read the data that the abnormal time section is lost, and guarantees continuity, security and the integrality of data; On this basis, this example is returned host computer a kind of another kind of reading manner except real-time reading out data is provided, it is the retaking of a year or grade function of data before, such as, if the time interval set is 5 minutes, this example except within every 5 minutes, read as required in network all nodes once, can also take each hour to read the mode that in previous hour, the freezing zone data once (comprise 12 groups of data), so just, can very effectively reduce the reading frequency of host computer to network, reduce the expense of whole system.And, for retaking of a year or grade time of the data in memory module, can be arranged according to amount of capacity and the actual needs of memory module fully, and then avoid as far as possible the frequent operation of host computer, guarantee work efficiency.
This routine described control module is MCU, and described MCU receives the outside order that arranges by communication module.MCU receives the order that arranges of outside transmission by communication module, as host computer send order is set after, the current time that will provide according to clock module and the time interval of setting store data in memory module, such as the current time is 12:00, the time interval is 5 minutes, freeze-off time point is 12:00,12:05,12:10,12:15, by that analogy; Described freezing data has comprised the data with date and time, and each freeze-off time is put corresponding one group of data; MCU can be by the current time of communication module and upper machine communication and then calibration clock module.
This routine described data readback and memory storage can be ammeter, and its concrete methods of realizing is as follows: host computer and ammeter can carry out communication by wired or wireless mode, and wired mode is as RS485, and wireless mode is as zigbee etc.; Host computer can arrange the freeze-off time interval of ammeter and the data that need to freeze as modbus by specific communications protocol, as power, electric weight, electric current, voltage etc.; MCU receives the order that arranges of host computer transmission by communication module, the data that MCU will freeze needs at the official hour interval according to order store data into memory module from metering module; Memory module can be the nonvolatile memories such as EEPROM or Flash, and memory space can be regulated according to actual needs; The current time that MCU will provide according to clock module and the time interval of setting store data in memory module, such as the current time is 12:00, the time interval is 5 minutes, freeze-off time point is 12:00,12:05,12:10,12:15, by that analogy, freezing data has comprised one group of data with date and time; MCU can be by communication module and upper machine communication calibration clock module current time; Clock module, with backup battery, still can normally move after the ammeter power down, guarantees time correctness; During host computer retaking of a year or grade data, read the data of the time period that need to read according to current time and the time interval, for example the current time is 12:00, need to read every 5 minutes interval datas between 10:00 ~ 11:00, can read the 13rd group ~ 24 groups, freezing data district data.
Embodiment 2:
As shown in Fig. 2 to Fig. 5, Fig. 4 is the circuit connection diagram of this routine memory module, on the basis of embodiment 1, electric main converts direct current 5.7V to after by the rectification step-down and is connected to the power supply VRTC of described clock module by diode D5 forward, simultaneously the power supply VRTC of clock module by diode D6 Opposite direction connection to backup battery BT1; When mains-supplied, the voltage 3.7V that 5.7V voltage provides higher than backup battery BT1, now D5 conducting D6 cut-off, clock module passes through mains-supplied; When the civil power power down, the 5.7V power supply is down to 0V, lower than backup battery BT1 voltage 3.7V, and now D6 conducting D5 cut-off, backup battery BT1 powers to clock module by the D6 conducting; The power supply VCC of described control module is connected to the emitter of diode D6 by wire jumper resistance R 9, specifically as shown in Figure 5, just can whether backup battery be set by the self-defined selection control module of wire jumper resistance R 9, improve security performance, stability and the human oriented design thereof of product.
As shown in Figure 2, this routine described clock module comprises clock chip RX8025T, and the pin two of described clock chip RX8025T and pin one 3 are connected to respectively the power supply VCC of control module by pull-up resistor R6 and R7; Pin one 1 ground connection of described clock chip RX8025T; The pin 6 of described clock chip RX8025T is connected to the power supply VRTC of clock module; The power supply VRTC of described clock module is by capacitor C 13 ground connection.Described capacitor C 13 can play the effect of filtering interfering to the power supply VRTC of clock module, make the power supply of clock module more stable.
As shown in Figure 3, this routine described communication module comprises the RS485 transmission circuit, and the receiving cable of described RS485 transmission circuit and transmission channel are connected to RS485 interface chip U2 by optocoupler respectively, and the output terminal of RS485 interface chip U2 is connected to interface circuit; Wherein, the receiving cable of described RS485 transmission circuit and the equal default setting of the control signal of transmission channel are low level, after control module receives outside read signal, communication module all is set to high level by the control signal of the receiving cable of RS485 transmission circuit and transmission channel.In Fig. 3, interface circuit is arranged at the right of RS485 interface chip U2, and resistance R 71, resistance R 72, resistance R 73 and triode Q1 have formed the circuit of the control signal of the receiving cable of RS485 transmission circuit and transmission channel.
The receiving cable of described RS485 transmission circuit and the equal default setting of the control signal of transmission channel are low level, make RS485 transmission circuit acquiescence in accepting state, and then constantly receive the data that metering module gathers; After control module receives outside read signal, communication module all is set to high level by the control signal of the receiving cable of RS485 transmission circuit and transmission channel, make the RS485 transmission circuit become emission state, control module just can send the required data of external unit by communication module; So, under the collaborative work of control module and communication module, guaranteed continuity and the complete safety of data.And the receiving cable of RS485 transmission circuit and transmission channel are realized isolation also further having guaranteed stability and the security of data transmission by optocoupler.
As shown in Figure 6, this routine described memory module will be freezed time of origin and freezing data is stored by the storehouse order; Memory module is stored and is freezed the time data that time of origin is 3 registers, and the time data of these 3 registers corresponding second minute respectively, time and the moon year, freezing data is active energy and meritorious general power; Each register in memory module all has with data and is address one to one, as 3 register-stored that are 41024,41025 and 41026 of address in Fig. 6 be respectively freeze that time of origin divides second the last time, time and month year, 41027,41028,41029,41030 for freezing the freezing data of time of origin point, comprises active energy and meritorious general power.In memory module, all data identify storage according to the time, respectively corresponding minute, hour date in second of the time data of front 3 registers of one group of freezing data and time in month, and also each register has corresponding address; So, for wanting the retaking of a year or grade data of section sometime, as long as find this time period time and/address can easily realize that retaking of a year or grade transfers data.
Embodiment 3:
On the basis of embodiment 1 or embodiment 2, this example also provides a kind of data readback and storage system, comprises host computer and above-mentioned data readback and memory storage; Described host computer sends order is set control module by communication module, and the control module data that the set time interval is freezed needs according to the host computer order store into memory module from metering module; During the data of described host computer in the retaking of a year or grade memory module, the data of specified time period are carried out to retaking of a year or grade according to current time and the time interval.This routine described host computer arranges the time interval of data readback and memory storage and the data that need to freeze by the modbus agreement, and the data that described needs freeze comprise at least one data in power, electric weight, electric current and voltage.This routine described data readback and storage system are preferably electric energy detection system, and this routine host computer can be avoided frequently reading whole network data, and take once to read the mode of the data in longer a period of time.
Compared with prior art, this routine beneficial effect is: except the function that real-time measurement image data is provided, also in real-time measurement and image data, according to the time interval freezing data set, even in the situation that communication abnormality or can't read current measurement data for some reason at host computer, also time and freezing data can be stored in memory module according to certain way, therefore, host computer can be retrieved and be read the data of different time points according to concrete needs, guaranteed continuity, security and the integrality of data; On this basis, this example is returned host computer a kind of another kind of reading manner except real-time reading out data is provided, and the function of data before fast effective retaking of a year or grade, reduced the frequent degree that host computer operates, and reduced system overhead.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. a data readback and memory storage, is characterized in that, comprising:
Metering module, described metering module is at least one above data of Real-time Collection power, electric weight, electric current and voltage;
Control module, described control module is connected with metering module;
Communication module, described communication module is connected with control module;
Clock module, described clock module is connected with control module, and by control module and communication module calibration current time; And,
Memory module, described memory module is connected with control module;
Wherein, described control module is carried out data-frozen regularly according to current time and the time interval set, and the data and the freeze-off time thereof that freeze are stored into memory module from metering module and clock module.
2. data readback according to claim 1 and memory storage, is characterized in that, described control module is MCU, and described MCU receives the outside order that arranges by communication module.
3. data readback according to claim 1 and memory storage, is characterized in that, the nonvolatile memory that described memory module is EEPROM or Flash, and the memory space of described memory module is regulated according to actual needs.
4. data readback according to claim 1 and memory storage, is characterized in that, described clock module is provided with backup battery, and after power down, described clock module is powered by backup battery and then guaranteed its normal operation.
5. data readback according to claim 4 and memory storage, it is characterized in that, electric main converts direct current 5.7V to after by the rectification step-down and is connected to the power supply VRTC of described clock module by diode D5 forward, simultaneously the power supply VRTC of clock module by diode D6 Opposite direction connection to backup battery BT1; When mains-supplied, the voltage 3.7V that 5.7V voltage provides higher than backup battery BT1, now D5 conducting D6 cut-off, clock module passes through mains-supplied; When the civil power power down, the 5.7V power supply is down to 0V, lower than backup battery BT1 voltage 3.7V, and now D6 conducting D5 cut-off, backup battery BT1 powers to clock module by the D6 conducting; The power supply VCC of described control module is connected to the emitter of diode D6 by wire jumper resistance R 9.
6. according to the described data readback of claim 1 to 5 any one and memory storage, it is characterized in that, described clock module comprises clock chip RX8025T, and the pin two of described clock chip RX8025T and pin one 3 are connected to respectively the power supply VCC of control module by pull-up resistor R6 and R7; Pin one 1 ground connection of described clock chip RX8025T; The pin 6 of described clock chip RX8025T is connected to the power supply VRTC of clock module; The power supply VRTC of described clock module is by capacitor C 13 ground connection.
7. according to the described data readback of claim 1 to 5 any one and memory storage, it is characterized in that, described communication module comprises the RS485 transmission circuit, the receiving cable of described RS485 transmission circuit and transmission channel are connected to RS485 interface chip U2 by optocoupler respectively, and the output terminal of RS485 interface chip U2 is connected to interface circuit; Wherein, the receiving cable of described RS485 transmission circuit and the equal default setting of the control signal of transmission channel are low level, after control module receives outside read signal, communication module all is set to high level by the control signal of the receiving cable of RS485 transmission circuit and transmission channel.
8. data readback according to claim 7 and memory storage, it is characterized in that, described memory module is stored time of origin and the freezing data thereof freezed by the storehouse order, the described time of origin freezed is to cause in the time interval by current time and setting; Each group data of memory module storage, time when correspondence is freezed to cause and freezing data, the time data that the time while freezing is 3 registers, the time data difference of these 3 registers corresponding second minute, time and month year; Each register in memory module all has with data and is address one to one.
9. a data readback and storage system, is characterized in that, comprises host computer and data readback as described as claim 1 to 8 any one and memory storage; Described host computer sends order is set control module by communication module, and the control module data that the set time interval is freezed needs according to the order of host computer store into memory module from metering module; During the data of described host computer in the retaking of a year or grade memory module, according to the freeze-off time interval of current time and setting, the data of specified time period are carried out to retaking of a year or grade.
10. data readback according to claim 9 and storage system, it is characterized in that, described host computer arranges the time interval of data readback and memory storage and the data that need to freeze by the modbus agreement, and the data that described needs freeze comprise at least one data in power, electric weight, electric current and voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310402062.0A CN103439554B (en) | 2013-09-06 | 2013-09-06 | A kind of data readback and storage device and system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310402062.0A CN103439554B (en) | 2013-09-06 | 2013-09-06 | A kind of data readback and storage device and system thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103439554A true CN103439554A (en) | 2013-12-11 |
| CN103439554B CN103439554B (en) | 2016-08-17 |
Family
ID=49693259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310402062.0A Expired - Fee Related CN103439554B (en) | 2013-09-06 | 2013-09-06 | A kind of data readback and storage device and system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103439554B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104360610A (en) * | 2014-08-15 | 2015-02-18 | 杭州可靠性仪器厂 | AVR single-chip microcomputer based control platform of multifunctional test system |
| CN105606856A (en) * | 2015-12-21 | 2016-05-25 | 南昌市科陆智能电网科技有限公司 | Method for raising power meter system real-time response speed, system and power meter |
| 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 |
| CN112567253A (en) * | 2018-05-10 | 2021-03-26 | 兰迪斯+盖尔有限责任公司 | Apparatus and method for data retention and power loss recovery in an electrical meter |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009008477A (en) * | 2007-06-27 | 2009-01-15 | Toshiba Lighting & Technology Corp | Power measuring device |
| JP2009156811A (en) * | 2007-12-27 | 2009-07-16 | Toshiba Corp | Voltmeter |
| CN201903569U (en) * | 2010-08-25 | 2011-07-20 | 浙江恒业电子有限公司 | Single-phase remote charge-controlled intelligent electric energy meter |
| CN102901851A (en) * | 2011-07-25 | 2013-01-30 | 南京能瑞自动化设备股份有限公司 | Single-phase remote-cost control intelligent ammeter with RS485 control signal output |
-
2013
- 2013-09-06 CN CN201310402062.0A patent/CN103439554B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009008477A (en) * | 2007-06-27 | 2009-01-15 | Toshiba Lighting & Technology Corp | Power measuring device |
| JP2009156811A (en) * | 2007-12-27 | 2009-07-16 | Toshiba Corp | Voltmeter |
| CN201903569U (en) * | 2010-08-25 | 2011-07-20 | 浙江恒业电子有限公司 | Single-phase remote charge-controlled intelligent electric energy meter |
| CN102901851A (en) * | 2011-07-25 | 2013-01-30 | 南京能瑞自动化设备股份有限公司 | Single-phase remote-cost control intelligent ammeter with RS485 control signal output |
Non-Patent Citations (1)
| Title |
|---|
| 杜欣鑫 等: "基于RENESAS半导体的单相远程费控智能电表设计", 《机电信息》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104360610A (en) * | 2014-08-15 | 2015-02-18 | 杭州可靠性仪器厂 | AVR single-chip microcomputer based control platform of multifunctional test system |
| CN105606856A (en) * | 2015-12-21 | 2016-05-25 | 南昌市科陆智能电网科技有限公司 | Method for raising power meter system real-time response speed, system and power meter |
| 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 |
| CN112567253A (en) * | 2018-05-10 | 2021-03-26 | 兰迪斯+盖尔有限责任公司 | Apparatus and method for data retention and power loss recovery in an electrical meter |
| US11313905B2 (en) | 2018-05-10 | 2022-04-26 | Landis+Gyr Llc | Device and method for data preservation and power loss recovery in an electric meter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103439554B (en) | 2016-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102945594B (en) | Meter-bus data collector with ultra-low power loss | |
| CN103439554A (en) | Data backward-reading and storing device and system thereof | |
| CN104330177A (en) | Ultra-low power consumption and portable ground temperature acquisition device and method | |
| CN106292360A (en) | Telemetry system on a kind of aircraft based on number bus | |
| CN207457458U (en) | A kind of accumulator wireless inspection device | |
| CN203503062U (en) | Electric energy meter | |
| CN105021221A (en) | Distributed multi-terminal concurrent data acquisition and analysis system | |
| CN203465334U (en) | Data backward-reading and storing device and system thereof | |
| CN201765272U (en) | Three-fee-controlled wireless intelligent electric energy meter | |
| CN201021932Y (en) | Power meter based on USB host technology | |
| CN203102588U (en) | Intelligent electric energy meter data acquisition device | |
| CN217931811U (en) | Rail insulation integrated test recorder based on GPS time synchronization | |
| Kumar et al. | Design of real time data acquisition with multi node embedded systems | |
| CN204967762U (en) | Self -power photovoltaic module temperature acquisition device | |
| CN101592683A (en) | Three-phase electronic multi-rate electric energy meter | |
| CN202976445U (en) | Counter bus data collector with ultralow power consumption | |
| CN203012949U (en) | Novel field electricity meter acquiring system | |
| CN202904758U (en) | Power-down data protection device for fiscal cash register | |
| CN203705945U (en) | Measurement data checking terminal for electric power scheduling system | |
| CN202350951U (en) | System for ground temperature observation in cold areas | |
| CN206960929U (en) | A kind of composite data collector | |
| CN209247879U (en) | A kind of line loss module device | |
| CN104280608A (en) | Metering chip of ammeter and ammeter | |
| CN104280606A (en) | Self-starting method and parameter self-calibration method of metering chip | |
| CN104217767A (en) | Nonvolatile memory testing device and test method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20200906 |