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Single-phase electric energy meter capable of avoiding fraudulent use of electricity and measuring calculation method capable of avoiding fraudulent use of electricity

A calculation method and a technology for preventing electricity theft, which are applied to measuring devices, electric power measurement, and measurement of electric variables by applying digital technology, which can solve the problems of imperfect detection methods, unsatisfactory accuracy, and high energy consumption, and achieve high , high reliability and low energy consumption

Inactive Publication Date: 2009-03-18
LIERDA SCI & TECH GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fly in the ointment is: first, the MSP430FE42X has a built-in metering chip, and its metering method is a fixed mode, resulting in high energy consumption, imperfect detection methods, and unsatisfactory accuracy of the electric energy meter during the anti-theft detection and measurement process; high cost

Method used

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  • Single-phase electric energy meter capable of avoiding fraudulent use of electricity and measuring calculation method capable of avoiding fraudulent use of electricity
  • Single-phase electric energy meter capable of avoiding fraudulent use of electricity and measuring calculation method capable of avoiding fraudulent use of electricity
  • Single-phase electric energy meter capable of avoiding fraudulent use of electricity and measuring calculation method capable of avoiding fraudulent use of electricity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: with reference to attached Figure 1~3 . Single-phase anti-theft electric energy meter, which includes a watch case, the power input terminal of the power management module is respectively connected to the live wire and neutral wire of the AC, the power supply current transformer, and the battery, the output terminal of the power management module is connected to the power terminal of the single-chip microcomputer, and the current unbalance detection circuit The signal output terminal of the single-chip computer is connected to the input terminal of the current sampling signal in the single-chip computer, the signal output terminal of the anti-theft detection circuit is connected to the input terminal of the current sampling signal in the single-chip computer, and the signal output terminal of the voltage detection circuit is connected to the input terminal of the voltage sampling signal in the single-chip computer The drive module in the single-chip micro...

Embodiment 2

[0019] Embodiment 2: On the basis of Embodiment 1, the single-phase electric energy meter anti-stealing method, the power supply input terminal of the power management module is respectively connected to the AC live wire and the neutral wire, the power supply current transformer, and the battery, and the output terminal of the power management module is connected to the single-chip microcomputer The power supply terminal, the signal output terminal of the current unbalance detection circuit is connected to the input terminal of the current sampling signal in the single chip microcomputer, the signal output terminal of the anti-theft detection circuit is connected to the input terminal of the current sampling signal in the single chip microcomputer, and the signal output of the voltage detection circuit The terminal is connected to the input terminal of the voltage sampling signal in the single-chip computer, the driving module in the single-chip computer is connected to the LCD ...

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Abstract

The invention relates to a micro power consumption single-phase power meter electricity theft prevention method, wherein the power input of a power manage module is connected with an alternative current live wire, an alternative current zero line, a power supply current transformer and a battery, the power output of the power manage module is connected with the power end of a single chip, the signal output of a current imbalance detection circuit is connected with the input of the current sample signal of the single chip, the signal output of an electricity theft prevention detection circuit is connected with the input of the current sample signal of the single chip, the signal output of a voltage detection circuit is connected with the input of the voltage sample signal of the single chip, the drive module of the single chip is connected with a LCD display device, while the hardware general asynchronous / synchronous transmission module is connected with a communication interface and the pulse output interface is used for correcting the meter and measurement, the power supply current transformer is sheathed on a single phase alternative current wire, while the output of the current detection signal is connected with the signal input of the power manage module, the power supply current transformer thieves power from the current loop, to power the power meter, and the single chip is MSP430F42X.

Description

technical field [0001] The invention relates to an anti-stealing method for a micro-power consumption single-phase electric energy meter, which belongs to the field of electric energy meter manufacturing. Background technique [0002] The applicant owns CN1648675A, titled "Single-phase anti-stealing electric energy meter and anti-stealing electricity metering method". The output terminal of the module is connected to the power supply terminal of the single-chip microcomputer MSP430FE42X, the signal output terminal of the current unbalance detection circuit is connected to the input terminal of the current sampling signal in the single-chip microcomputer MSP430FE42X, and the signal output terminal of the anti-theft detection circuit is connected to the current sampling signal terminal of the single-chip microcomputer MSP430FE42X The input terminal, the signal output terminal of the voltage detection circuit is connected to the voltage sampling signal input terminal of the sin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R22/10G01R19/255G01R21/133G01R23/02
Inventor 赵振东周震宇郑经欧梁源陈贤兴
Owner LIERDA SCI & TECH GRP
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