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Data backward-reading and storing device and system thereof

A storage device and data technology, applied in the direction of multi-tester circuits, etc., can solve problems such as high network reliability requirements, increased system overhead, and data loss, and achieve the effects of avoiding frequent operations, reducing overhead, and ensuring continuity

Inactive Publication Date: 2013-12-11
ESD ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the existing electric meter measures real-time electrical parameter data, such as current, voltage, power, power factor, and active / reactive energy, while the upper computer reads the real-time data measured by the current electric meter through a certain communication protocol. The existing method has the following defects and deficiencies: first, in the application of real-time monitoring type, if there is an abnormality in the communication process, such as the communication line is disconnected, the host computer is turned off, etc., the data in the abnormal process will be lost; Second, the real-time monitoring of electricity meters requires the host computer to read and write the meters frequently. For example, if the monitoring interval is 5 minutes, the host computer needs to read and write all the meters in the entire network every 5 minutes, which increases the The system overhead may cause the system to be busy, and it also requires high network reliability

Method used

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  • Data backward-reading and storing device and system thereof
  • Data backward-reading and storing device and system thereof
  • Data backward-reading and storing device and system thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as figure 1 As shown, this example provides a data read-back and storage device, including:

[0036] A metering module, the metering module is used to collect data of at least one of power, electricity, current and voltage in real time;

[0037] a control module, the control module is connected to the metering module;

[0038] a communication module, the communication module is connected to the control module;

[0039] a clock module, the clock module is connected to the control module, and the current time is calibrated through the control module and the communication module; and,

[0040] a storage module, the storage module is connected to the control module;

[0041] Wherein, the control module performs timing data freezing according to the current time and the set time interval, and stores the frozen data and the freezing time from the metering module and the clock module into the storage module.

[0042] The metering module is used to collect data of at l...

Embodiment 2

[0048] Such as Figure 2 to Figure 5 as shown, Figure 4 It is a schematic diagram of the circuit connection of the storage module in this example. On the basis of Embodiment 1, the AC mains is converted into DC 5.7V after rectification and step-down, and is forwardly connected to the power supply VRTC of the clock module through the diode D5, and the clock module The power supply VRTC is reversely connected to the backup battery BT1 through the diode D6; when the mains supply, the 5.7V voltage is higher than the voltage 3.7V provided by the backup battery BT1, at this time D5 is turned on and D6 is cut off, and the clock module is powered by the mains; When the mains is powered off, the 5.7V power supply drops to 0V, which is lower than the backup battery BT1 voltage 3.7V. At this time, D6 is turned on and D5 is cut off, and the backup battery BT1 is turned on to supply power to the clock module through D6; the power supply VCC of the control module is passed Jumper resistor...

Embodiment 3

[0054] On the basis of Embodiment 1 or Embodiment 2, this example also provides a data read-back and storage system, including a host computer and the above-mentioned data read-back and storage device; the host computer sends settings to the control module through the communication module command, the control module stores the data that needs to be frozen from the metering module to the storage module according to the time interval set by the host computer command; when the host computer reads back the data in the storage module, it The data of the time period is read back. The host computer in this example sets the time interval for data read-back and storage and the data to be frozen through the modbus protocol, and the data to be frozen includes at least one of power, electricity, current and voltage. The data read-back and storage system described in this example is preferably an electric energy detection system. The upper computer in this example can avoid frequently read...

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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 [0001] The invention relates to the field of data read-back, in particular to a data read-back and storage device, and to a data read-back and storage system. Background technique [0002] At present, the existing electric meter measures real-time electrical parameter data, such as current, voltage, power, power factor, and active / reactive energy, while the upper computer reads the real-time data measured by the current electric meter through a certain communication protocol. The existing method has the following defects and deficiencies: first, in the application of real-time monitoring type, if there is an abnormality in the communication process, such as the communication line is disconnected, the host computer is turned off, etc., the data in the abnormal process will be lost; Second, the real-time monitoring of electricity meters requires the host computer to read and write the meters frequently. For example, if the monitoring interval is 5 minutes, the ...

Claims

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Application Information

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IPC IPC(8): G01R15/12
Inventor 刘澜冯钰洋
Owner ESD ENERGY
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