CN105842501A - Electric meter capable of automatically preventing electricity stealing - Google Patents
Electric meter capable of automatically preventing electricity stealing Download PDFInfo
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- CN105842501A CN105842501A CN201610180230.XA CN201610180230A CN105842501A CN 105842501 A CN105842501 A CN 105842501A CN 201610180230 A CN201610180230 A CN 201610180230A CN 105842501 A CN105842501 A CN 105842501A
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- image
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- kilowatt
- hour meter
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
- G01R11/24—Arrangements for avoiding or indicating fraudulent use
Abstract
The invention relates to an electric meter capable of automatically preventing electricity stealing. The electric meter comprises a seal moving identification device, a screw variation identification device, a power detection device and a main controller, wherein the seal moving identification device and the screw variation identification device are used for identifying the variation of seals and screws on the casing of the electric meter, and the main controller is respectively connected with the seal moving identification device, the screw variation identification device and the power detection device. The electricity stealing fact can be automatically detected by the electric meter, thereby preventing further economic loss of the related electric power department.
Description
Technical field
The present invention relates to kilowatt-hour meter field, particularly relate to a kind of automatization Anti-current stealing electric meter.
Background technology
Kilowatt-hour meter is for measuring resident or the important instrument of factory's electricity consumption quantity, power supply management department root
The concrete electricity consumption quantity of electricity consumption one side is determined according to the reading of kilowatt-hour meter, in this, as the foundation of charge,
Require that electricity consumption one side pays.
As can be seen here, kilowatt-hour meter is closely related with the economic interests of power supply management department and electricity consumption side, as
Really the measurement result of kilowatt-hour meter is forbidden, it is easy to cause charging the most objective, and overcharge is then invaded
The economic interests of electricity consumption side, charge very few, then compromise the economic interests of power supply management department, because of
This, the certainty of measurement of kilowatt-hour meter must be accurate.
Meanwhile, juggling things kilowatt-hour meter and be capable of changing the stealing electricity effect of kilowatt-hour meter reading, this is also
Power supply management department is unwilling to see, power supply management department typically can be to kilowatt-hour meter both mechanically and electrically
Aspect is made some preventing fraudulent use of electricities and is processed, but, position, electricity consumption side mostly it is arranged on due to kilowatt-hour meter
In neighbouring public territory, the long-time visual field departing from power supply management department, this still provides to stealing electricity
Chance.
Accordingly, it would be desirable to a kind of automatization Anti-current stealing electric meter, it is possible in real time kilowatt-hour meter is detected,
Report to the police immediately, simultaneously when finding stealing electricity situation, additionally it is possible to optimize the inside of existing kilowatt-hour meter
Structure, it is provided that the measurement performance of kilowatt-hour meter.
Summary of the invention
In order to solve the problems referred to above, the invention provides a kind of automatization Anti-current stealing electric meter, by right
The internal structure de-redundancy of kilowatt-hour meter, improves the kilowatt-hour meter detection essence to supply line's parameters of electric power
Degree, more it is essential that use targetedly image recognition technology the envelope of kilowatt-hour meter to be detected in real time
Print and screw change conditions, thus determine whether that whether kilowatt-hour meter is by stealing electricity.
According to an aspect of the present invention, it is provided that a kind of automatization Anti-current stealing electric meter, move including seal
Dynamic identification equipment, screw variation identification equipment, electric energy detection equipment and master controller, seal moves knowledge
Other equipment and screw variation identification equipment are respectively used to identify seal and the change of screw on kilowatt-hour meter housing
Emotionally condition, master controller moves identification equipment, screw variation identification equipment and electric energy inspection respectively with seal
Measurement equipment connects.
More specifically, in described automatization Anti-current stealing electric meter, including: ccd image sensing equipment,
Being arranged on the top of kilowatt-hour meter, the housing towards kilowatt-hour meter shoots, to obtain high definition framed picture；
Complexity detection equipment, is connected with ccd image sensing equipment, is used for receiving high definition framed picture,
And calculate based on high definition framed picture and export image complexity；Gray scale converting apparatus, schemes with CCD
As sensing equipment connects, it is used for receiving high definition framed picture, for each in high definition framed picture
Pixel, extracts its R, G, B tri-Color Channel component, to R, G, B tri-Color Channel component
Give different weighted values average to be weighted, to obtain corresponding gray value, all pixels
Gray value composition gray level image, wherein R, G, B tri-Color Channel component weighted value be respectively
0.3,0.59 and 0.11；Image filtering equipment, respectively with complexity detection equipment and gray scale converting apparatus
Connect, for determining the filtering strategies of selection based on image complexity, when image complexity is being preset again
Time below miscellaneous degree range lower limit, select gaussian filtering strategy that gray level image is filtered, work as image
When complexity is more than default complexity range limit, select mean filter strategy that gray level image is entered
Row filtering, when image complexity is within default complexity scope, selects medium filtering strategy to ash
Degreeization image is filtered；Overall situation binarizing apparatus, respectively with complexity detection equipment and image filtering
Equipment connects, and for determining the determination strategy of overall situation binary-state threshold based on image complexity, is determining
After overall situation binary-state threshold, overall situation binary-state threshold is used to be carried out at binaryzation by gray level image
Reason so that the pixel value of the binary image after process only has 0 or 255 these two kinds selections, Qi Zhongji
Determine that in image complexity the determination strategy of overall situation binary-state threshold specifically includes: when image complexity exists
When presetting below complexity range lower limit, Two-peak method is used to determine overall situation binary-state threshold, when image is multiple
When miscellaneous degree is more than default complexity range limit, maximum variance between clusters is used to determine overall situation binaryzation
Threshold value, when image complexity is within default complexity scope, uses mean value method to determine the overall situation two
Value threshold value；Image correcting device, is connected to receive binary image with overall situation binarizing apparatus, uses
In binary image is carried out at rotation correction process, redundancy cutting process and image normalization successively
Reason, to obtain correction chart picture；Contour detecting equipment, converts with image correcting device and gray scale respectively and sets
Standby connection, for based on default kilowatt-hour meter housing seal profile and kilowatt-hour meter housing screw contour detecting school
The position of kilowatt-hour meter housing seal and the position of kilowatt-hour meter housing screw in positive image, and based on correction chart
In Xiang, the position of kilowatt-hour meter housing seal is partitioned into the kilowatt-hour meter housing envelope of correspondence at gray level image
Watermark image, it is right to be partitioned at gray level image based on the position of kilowatt-hour meter housing screw in correction chart picture
The kilowatt-hour meter housing screw image answered；Calibrating resistance, is a slide rheostat, and resistance value is 2M Ω,
One fixing end is connected with the zero line of industrial-frequency alternating current, and one end of sliding end and the second resistance connects；The
Two resistance, resistance value is 1M Ω, and one end of the other end and the first resistance connects, meanwhile, the other end
A measurement end output as sampled voltage；First resistance, resistance value is 1.5K Ω, the other end and work
Frequently the live wire of alternating current connects；First electric capacity, capacitance is 220pf, and one end is another with the second resistance
One end connects, other end ground connection；3rd resistance, resistance value is 470 Ω, one end and industrial-frequency alternating current
Live wire connect, the other end as sampled voltage another measure end output；Second electric capacity, capacitance
For 220pf, one end is connected with the other end of the 3rd resistance, other end ground connection；3rd electric capacity, electric capacity
Value is 0.018uf, and one end is connected with the other end of the second resistance, the other end and the other end of the 3rd resistance
Connect；4th resistance, resistance value is 0.6m Ω, is inserted on the live wire of industrial-frequency alternating current, i.e. two ends
All it is connected with the live wire of industrial-frequency alternating current；5th resistance, resistance value is 470 Ω, one end and the 4th electricity
One end of resistance connects, and the other end is as a measurement end output of sample rate current；6th resistance, resistance value
Being 470 Ω, be connected with the other end of the 4th resistance, the other end is as another measurement end of sample rate current
Output；4th electric capacity, capacitance is 220pf, and one end is connected with the other end of the 5th resistance, another
End ground connection；5th electric capacity, capacitance is 220pf, and one end is connected with the other end of the 6th resistance, separately
One end ground connection；6th electric capacity, capacitance is 0.018uf, and one end is connected with the other end of the 5th resistance,
The other end of the other end and the 6th resistance connects；Capacity voltage dropping circuit, with the zero line of industrial-frequency alternating current and
Live wire connects, and for industrial-frequency alternating current is changed into 5V low-voltage DC, sets for use as electric energy detection
Standby power supply；Electric energy detection equipment, including tension measuring circuit, current measurement circuit and microcontroller,
Tension measuring circuit is connected respectively with detection with two measurement ends of sampled voltage and exports industrial frequency AC
The real-time sampling voltage of electricity, current measurement circuit is connected with two measurement ends of sample rate current respectively with inspection
Survey and export the real-time sampling electric current of industrial-frequency alternating current, microcontroller respectively with tension measuring circuit and electricity
Flow measurement circuitry, the real-time sampling electricity of real-time sampling voltage based on industrial-frequency alternating current and industrial-frequency alternating current
Stream, determines and exports active power and the reactive power of industrial-frequency alternating current；Xegregating unit, is positioned at electric energy
Between detection equipment and MSP430 single-chip microcomputer, use photoelectric coupling circuit, be used for realizing analog circuit
Part and the isolation of digital circuits section, it is to avoid interfere；AC/DC power-supply device, including transformation
Device reduction voltage circuit, full bridge rectifier, filter circuit and mu balanced circuit, with the zero line of industrial-frequency alternating current
Connect with live wire, for the industrial-frequency alternating current of 220V being converted to the unidirectional current of 5V or 3.3V；
ZIGBEE communication interface, is connected with MSP430 single-chip microcomputer, for receiving and wireless copying to neighbouring
Table equipment sends active power and reactive power；Serial erasable memory AT24C16B, has 1
Ten thousand erasable circulations, are connected with MSP430 single-chip microcomputer, for receiving the active power of industrial-frequency alternating current
And reactive power；Seal moves identification equipment, with contour detecting equipment and serial erasable memory
AT24C16B connects, and is used for determining kilowatt-hour meter housing seal image and default gray scale housing seal image
Between matching degree, and based on matching degree determine whether export seal movable signal；Screw changes
Identification equipment, is connected with contour detecting equipment and serial erasable memory AT24C16B, for really
Determine the matching degree between kilowatt-hour meter housing screw image and default gray scale housing screw image, and based on
Matching degree determines whether to export screw variation signal；MSP430 single-chip microcomputer, by isolation circuit with
Electric energy detection equipment connects, for receiving active power and the reactive power of industrial-frequency alternating current；Wherein,
MSP430 single-chip microcomputer also moves identification equipment with seal and screw variation identification equipment is connected respectively, when
When receiving seal movable signal and receive screw variation signal, send stealing electricity confirmation signal, when only
When receiving seal movable signal or receive only screw variation signal, send the doubtful signal of stealing electricity, when
When seal movable signal and screw variation signal all do not receive, send stealing electricity and deny signal；Wherein,
Serial erasable memory AT24C16B is additionally operable to store default gray scale housing seal image and preset ash
It is outside one's consideration frame screw image.
More specifically, in described automatization Anti-current stealing electric meter: time division duplex communication interface, arrange
On the housing of kilowatt-hour meter.
More specifically, in described automatization Anti-current stealing electric meter: time division duplex communication interface with
MSP430 single-chip microcomputer connects, for active power and the reactive power of wireless transmission industrial-frequency alternating current.
More specifically, in described automatization Anti-current stealing electric meter: time division duplex communication interface with
MSP430 single-chip microcomputer connects, for wireless transmission stealing electricity confirmation signal, the doubtful signal of stealing electricity or stealing electricity
Deny signal.
More specifically, in described automatization Anti-current stealing electric meter: MSP430 single-chip microcomputer is arranged on electricity
In the housing of degree table.
Accompanying drawing explanation
Below with reference to accompanying drawing, embodiment of the present invention are described, wherein:
Fig. 1 is the structure square frame according to the automatization's Anti-current stealing electric meter shown in embodiment of the present invention
Figure.
Reference: 1 seal moves identification equipment；2 screw variation identification equipment；3 electric energy detection
Equipment；4 master controllers
Detailed description of the invention
Below with reference to accompanying drawings the embodiment of automatization's Anti-current stealing electric meter of the present invention is carried out in detail
Describe in detail bright.
Kilowatt-hour meter is the product that Sampling techniques, microprocessing, designing technique and experience combine, and is
High-tech product interdisciplinary.Understanding that kilowatt-hour meter manufacturer designs according to self and applicating skill, real
The various functions of existing kilowatt-hour meter.
On kilowatt-hour meter product, have been provided with multi-functional, networking, intellectuality, digitized at present
Demand, it is possible to meet the requirement of current various metering, as meritorious metering, reactive measurement, requirement calculate,
The sophisticated functions such as power grid quality detection, grid event record, and can be as communication slave station and central authorities' control
Main website processed carries out data interaction.
Currently, the kilowatt-hour meter for measuring electric energy service condition still suffers from following defect: (1) precision
The highest, it is impossible to meet supplier of electricity and the data resolution of electricity consumption side's requirement simultaneously；(2) stealing electricity situation
Happen occasionally, can only go whether detection stealing electricity situation of fixed place and time exists by artificial means, it is impossible to do
Real-time detection to stealing electricity.
In order to overcome above-mentioned deficiency, the present invention has built a kind of automatization Anti-current stealing electric meter, to electric degree
Table carries out structure of modification and upgrading, improves detection efficiency and the accuracy of kilowatt-hour meter, meanwhile, at electric degree
Introduce real-time anti-theft electricity equipment in the table device space, improve the preventing fraudulent use of electricity performance of kilowatt-hour meter.
Fig. 1 is the structure square frame according to the automatization's Anti-current stealing electric meter shown in embodiment of the present invention
Figure, moves identification equipment, screw variation identification equipment, electric energy detection equipment and main control including seal
Device, seal moves identification equipment and screw variation identification equipment is respectively used to identify envelope on kilowatt-hour meter housing
Print and the change conditions of screw, master controller moves identification equipment respectively with seal, screw variation identifies
Equipment and electric energy detection equipment connect.
Then, continue the concrete structure of automatization's Anti-current stealing electric meter of the present invention is carried out further
Explanation.
Described kilowatt-hour meter includes: ccd image sensing equipment, is arranged on the top of kilowatt-hour meter, towards electricity
The housing of degree table shoots, to obtain high definition framed picture；Complexity detection equipment, with CCD
Image sensing apparatus connects, and is used for receiving high definition framed picture, and calculates also based on high definition framed picture
Output image complexity；Gray scale converting apparatus, is connected with ccd image sensing equipment, is used for receiving
High definition framed picture, for each pixel in high definition framed picture, extracts its R, G, B
Three Color Channel components, to R, G, B tri-Color Channel component give different weighted value to carry out
Weighted average, to obtain corresponding gray value, the gray value composition gray level image of all pixels,
Wherein R, G, B tri-the weighted value of Color Channel component be respectively 0.3,0.59 and 0.11.
Described kilowatt-hour meter includes: image filtering equipment, converts with complexity detection equipment and gray scale respectively
Equipment connects, for determining the filtering strategies of selection based on image complexity, when image complexity is in advance
If time below complexity range lower limit, select gaussian filtering strategy that gray level image is filtered, when
When image complexity is more than default complexity range limit, select mean filter strategy to gray processing figure
As being filtered, when image complexity is within default complexity scope, select medium filtering strategy
Gray level image is filtered.
Described kilowatt-hour meter includes: overall situation binarizing apparatus, respectively with complexity detection equipment and image filter
Wave device connects, for determining the determination strategy of overall situation binary-state threshold based on image complexity, really
After fixed overall situation binary-state threshold, overall situation binary-state threshold is used to be carried out at binaryzation by gray level image
Reason so that the pixel value of the binary image after process only has 0 or 255 these two kinds selections, Qi Zhongji
Determine that in image complexity the determination strategy of overall situation binary-state threshold specifically includes: when image complexity exists
When presetting below complexity range lower limit, Two-peak method is used to determine overall situation binary-state threshold, when image is multiple
When miscellaneous degree is more than default complexity range limit, maximum variance between clusters is used to determine overall situation binaryzation
Threshold value, when image complexity is within default complexity scope, uses mean value method to determine the overall situation two
Value threshold value.
Described kilowatt-hour meter includes: image correcting device, is connected to receive two-value with overall situation binarizing apparatus
Change image, for binary image being carried out successively rotation correction process, redundancy cutting process and image
Normalized, to obtain correction chart picture；Contour detecting equipment, respectively with image correcting device and ash
Degree converting apparatus connects, for taking turns based on default kilowatt-hour meter housing seal profile and kilowatt-hour meter housing screw
The wide position detecting kilowatt-hour meter housing seal in correction chart picture and the position of kilowatt-hour meter housing screw, and base
In correction chart picture, the position of kilowatt-hour meter housing seal is partitioned into the electric degree of correspondence at gray level image
Off-balancesheet frame seal image, based on the position of kilowatt-hour meter housing screw in correction chart picture at gray level image
It is partitioned into the kilowatt-hour meter housing screw image of correspondence.
Described kilowatt-hour meter includes: calibrating resistance, is a slide rheostat, and resistance value is 2M Ω, one
Individual fixing end is connected with the zero line of industrial-frequency alternating current, and one end of sliding end and the second resistance connects；Second
Resistance, resistance value is 1M Ω, and one end of the other end and the first resistance connects, and meanwhile, the other end is made
A measurement end output for sampled voltage；First resistance, resistance value is 1.5K Ω, the other end and power frequency
The live wire of alternating current connects；First electric capacity, capacitance is 220pf, another of one end and the second resistance
End connects, other end ground connection；3rd resistance, resistance value is 470 Ω, one end and industrial-frequency alternating current
Live wire connects, and the other end is as another measurement end output of sampled voltage.
Described kilowatt-hour meter includes: the second electric capacity, and capacitance is 220pf, and one end is another with the 3rd resistance
One end connects, other end ground connection；3rd electric capacity, capacitance is 0.018uf, one end and the second resistance
The other end connects, and the other end of the other end and the 3rd resistance connects；4th resistance, resistance value is 0.6m
Ω, is inserted on the live wire of industrial-frequency alternating current, i.e. two ends are all connected with the live wire of industrial-frequency alternating current；The
Five resistance, resistance value is 470 Ω, and one end is connected with one end of the 4th resistance, and the other end is as sampling
One measurement end output of electric current；6th resistance, resistance value is 470 Ω, with the other end of the 4th resistance
Connecting, the other end is as another measurement end output of sample rate current.
Described kilowatt-hour meter includes: the 4th electric capacity, and capacitance is 220pf, and one end is another with the 5th resistance
One end connects, other end ground connection；5th electric capacity, capacitance is 220pf, one end and the 6th resistance
The other end connects, other end ground connection；6th electric capacity, capacitance is 0.018uf, one end and the 5th resistance
The other end connect, the connection of the other end of the other end and the 6th resistance；Capacity voltage dropping circuit, with power frequency
The zero line of alternating current and live wire connect, for industrial-frequency alternating current is changed into 5V low-voltage DC, with
Power supply as electric energy detection equipment.
Described kilowatt-hour meter includes: electric energy detection equipment, including tension measuring circuit, current measurement circuit
And microcontroller, tension measuring circuit is measured end and is connected respectively to detect and defeated with the two of sampled voltage
Going out the real-time sampling voltage of industrial-frequency alternating current, current measurement circuit divides with two measurement ends of sample rate current
Not connecting to detect and export the real-time sampling electric current of industrial-frequency alternating current, microcontroller is surveyed with voltage respectively
Amount circuit and current measurement circuit, real-time sampling voltage based on industrial-frequency alternating current and industrial-frequency alternating current
Real-time sampling electric current, determines and exports active power and the reactive power of industrial-frequency alternating current；Xegregating unit,
Between electric energy detection equipment and MSP430 single-chip microcomputer, use photoelectric coupling circuit, be used for realizing
Artificial circuit part and the isolation of digital circuits section, it is to avoid interfere.
Described kilowatt-hour meter includes: AC/DC power-supply device, including transformer step-down circuit, full-bridge rectification
Circuit, filter circuit and mu balanced circuit, be connected with zero line and the live wire of industrial-frequency alternating current, for by 220V
Industrial-frequency alternating current be converted to the unidirectional current of 5V or 3.3V；ZIGBEE communication interface, with MSP430
Single-chip microcomputer connects, for receiving and sending active power and idle merit to neighbouring radio meter register equipment
Rate；Serial erasable memory AT24C16B, has 10,000 erasable circulations, mono-with MSP430
Sheet machine connects, for receiving active power and the reactive power of industrial-frequency alternating current.
Described kilowatt-hour meter includes: seal moves identification equipment, erasable with contour detecting equipment and serial
Memorizer AT24C16B connects, and is used for determining kilowatt-hour meter housing seal image and default gray scale housing envelope
Matching degree between watermark image, and determine whether to export seal movable signal based on matching degree；Spiral shell
Silk variation identification equipment, is connected with contour detecting equipment and serial erasable memory AT24C16B,
For determining the matching degree between kilowatt-hour meter housing screw image and default gray scale housing screw image,
And determine whether to export screw variation signal based on matching degree.
Described kilowatt-hour meter includes: MSP430 single-chip microcomputer, by isolation circuit with electric energy detection equipment even
Connect, for receiving active power and the reactive power of industrial-frequency alternating current；Wherein, MSP430 single-chip microcomputer
Also move identification equipment with seal and screw variation identification equipment is connected respectively, move when receiving seal
Signal and receive screw variation signal time, send stealing electricity confirmation signal, move when receiving only seal
Signal or when receiving only screw variation signal, sends the doubtful signal of stealing electricity, when seal movable signal and
When screw variation signal does not all receive, send stealing electricity and deny signal.
Wherein, serial erasable memory AT24C16B is additionally operable to store default gray scale housing seal figure
Picture and default gray scale housing screw image.
Alternatively, in described kilowatt-hour meter: time division duplex communication interface, it is arranged on the housing of kilowatt-hour meter
On；Time division duplex communication interface is connected with MSP430 single-chip microcomputer, for wireless transmission industrial-frequency alternating current
Active power and reactive power；Time division duplex communication interface is connected with MSP430 single-chip microcomputer, is used for
Wireless transmission stealing electricity confirmation signal, the doubtful signal of stealing electricity or stealing electricity deny signal；And can be by
MSP430 single-chip microcomputer is arranged in the housing of kilowatt-hour meter.
It addition, 4G LTE is the standard of a global general-use, including two kinds of network schemer FDD and
TDD, is respectively used to paired spectrum and non-paired frequency spectrum.Operator's initially taking between two patterns
House is purely for the consideration to spectrum availability.Big multi-operator will dispose two kinds of networks simultaneously, with
Just its all frequency spectrum resources having are made full use of.FDD and TDD distinguishes the least technically,
The main distinction is that and uses different duplex modes, FDD (FDD) and time division duplex (TDD)
It is two kinds of different duplex modes.
FDD is to be received and transmitted on two the symmetrical frequency channels separated, and comes by protection frequency range
Separate and receive and send channel.FDD must use paired frequency, relies on frequency to carry out differentiating uplink and downlink
Link, its unidirectional resource is continuous print in time.FDD, when supporting symmetrical service, can fill
Divide the frequency spectrum utilizing up-downgoing, but when supporting non-symmetrical service, the availability of frequency spectrum will be substantially reduced.
TDD separates reception with the time and sends channel.In the mobile communication system of TDD mode,
Receive and send the different time-gap using same frequency carrier as the carrying of channel, its unidirectional money
Source is discontinuous in time, and time resource is distributed in the two directions.Certain time period
Being sent a signal to mobile station by base station, the other time is sent a signal to base station by mobile station, base station and
Must harmonious ability work well between mobile station.
Use the present invention automatization's Anti-current stealing electric meter, the highest for prior art kilowatt-hour meter precision and
Cannot real-time anti-theft electricity technical problem, by the measurement mechanism of kilowatt-hour meter is optimized, improve survey
The accuracy of amount, also introduces seal based on image procossing detection equipment and screw detecting equipment, uses
In identifying seal and the change conditions of screw on kilowatt-hour meter housing, and based on seal on kilowatt-hour meter housing and
The change conditions of screw makes whether kilowatt-hour meter is operated by the warning of stealing electricity in real time.
Although it is understood that the present invention discloses as above with preferred embodiment, but above-mentioned enforcement
Example is not limited to the present invention.For any those of ordinary skill in the art, without departing from
Under technical solution of the present invention ambit, all may utilize the technology contents of the disclosure above to the technology of the present invention
Scheme makes many possible variations and modification, or is revised as the Equivalent embodiments of equivalent variations.Therefore,
Every content without departing from technical solution of the present invention, the technical spirit of the foundation present invention is to above example
Any simple modification, equivalent variations and the modification done, all still falls within technical solution of the present invention protection
In the range of.
Claims (6)
1. automatization's Anti-current stealing electric meter, moves identification equipment, screw variation knowledge including seal
Other equipment, electric energy detection equipment and master controller, seal moves identification equipment and screw variation identification sets
Standby being respectively used to identifies seal and the change conditions of screw on kilowatt-hour meter housing, master controller respectively with envelope
The mobile identification equipment of print, screw variation identification equipment and electric energy detection equipment connect.
2. automatization as claimed in claim 1 Anti-current stealing electric meter, it is characterised in that described electricity
Degree table includes:
Ccd image sensing equipment, is arranged on the top of kilowatt-hour meter, and the housing towards kilowatt-hour meter is clapped
Take the photograph, to obtain high definition framed picture；
Complexity detection equipment, is connected with ccd image sensing equipment, is used for receiving the outer block diagram of high definition
Picture, and calculate based on high definition framed picture and export image complexity；
Gray scale converting apparatus, is connected with ccd image sensing equipment, is used for receiving high definition framed picture,
For each pixel in high definition framed picture, extract its R, G, B tri-Color Channel component,
The weighted value different to R, G, B tri-Color Channel component impartings is average to be weighted, to obtain
Corresponding gray value, gray value composition gray level image, wherein R, G, B tri-of all pixels
The weighted value of Color Channel component is respectively 0.3,0.59 and 0.11；
Image filtering equipment, is connected, for base with complexity detection equipment and gray scale converting apparatus respectively
The filtering strategies of selection is determined, when image complexity is at default complexity range lower limit in image complexity
Time following, select gaussian filtering strategy that gray level image is filtered, when image complexity is being preset
Time more than complexity range limit, select mean filter strategy that gray level image is filtered, work as figure
During as complexity within default complexity scope, select medium filtering strategy that gray level image is carried out
Filtering；
Overall situation binarizing apparatus, is connected with complexity detection equipment and image filtering equipment respectively, is used for
Determine the determination strategy of overall situation binary-state threshold based on image complexity, determine overall situation binary-state threshold
Afterwards, use overall situation binary-state threshold that gray level image is carried out binary conversion treatment so that after process
The pixel value of binary image only has 0 or 255 these two kinds selections, wherein determines based on image complexity
The determination strategy of overall situation binary-state threshold specifically includes: when image complexity is under default complexity scope
When limit is following, Two-peak method is used to determine overall situation binary-state threshold, when image complexity is in default complexity
Time more than range limit, maximum variance between clusters is used to determine overall situation binary-state threshold, when image is complicated
When degree is within default complexity scope, mean value method is used to determine overall situation binary-state threshold；
Image correcting device, is connected to receive binary image with overall situation binarizing apparatus, for two
Value image carries out rotation correction process, redundancy cutting process and image normalization successively and processes, to obtain
Obtain correction chart picture；
Contour detecting equipment, is connected with image correcting device and gray scale converting apparatus respectively, for based on
Preset kilowatt-hour meter in kilowatt-hour meter housing seal profile and kilowatt-hour meter housing screw contour detecting correction chart picture
The position of housing seal and the position of kilowatt-hour meter housing screw, and based on kilowatt-hour meter housing in correction chart picture
The position of seal is partitioned into the kilowatt-hour meter housing seal image of correspondence at gray level image, based on correction
In image, the position of kilowatt-hour meter housing screw is partitioned into the kilowatt-hour meter housing of correspondence at gray level image
Screw image；
Calibrating resistance, is a slide rheostat, and resistance value is 2M Ω, and a fixing end is handed over power frequency
The zero line of stream electricity connects, and one end of sliding end and the second resistance connects；
Second resistance, resistance value is 1M Ω, and one end of the other end and the first resistance connects, meanwhile,
The other end is as a measurement end output of sampled voltage；
First resistance, resistance value is 1.5K Ω, and the other end is connected with the live wire of industrial-frequency alternating current；
First electric capacity, capacitance is 220pf, and one end is connected with the other end of the second resistance, the other end
Ground connection；
3rd resistance, resistance value is 470 Ω, and one end is connected with the live wire of industrial-frequency alternating current, the other end
Another as sampled voltage measures end output；
Second electric capacity, capacitance is 220pf, and one end is connected with the other end of the 3rd resistance, the other end
Ground connection；
3rd electric capacity, capacitance is 0.018uf, and one end is connected with the other end of the second resistance, the other end
It is connected with the other end of the 3rd resistance；
4th resistance, resistance value is 0.6m Ω, is inserted on the live wire of industrial-frequency alternating current, and i.e. two ends are all
It is connected with the live wire of industrial-frequency alternating current；
5th resistance, resistance value is 470 Ω, and one end is connected with one end of the 4th resistance, and the other end is made
A measurement end output for sample rate current；
6th resistance, resistance value is 470 Ω, is connected with the other end of the 4th resistance, other end conduct
Another of sample rate current measures end output；
4th electric capacity, capacitance is 220pf, and one end is connected with the other end of the 5th resistance, the other end
Ground connection；
5th electric capacity, capacitance is 220pf, and one end is connected with the other end of the 6th resistance, the other end
Ground connection；
6th electric capacity, capacitance is 0.018uf, and one end is connected with the other end of the 5th resistance, the other end
It is connected with the other end of the 6th resistance；
Capacity voltage dropping circuit, is connected with zero line and the live wire of industrial-frequency alternating current, for by industrial-frequency alternating current
It is changed into 5V low-voltage DC, for use as the power supply of electric energy detection equipment；
Electric energy detection equipment, including tension measuring circuit, current measurement circuit and microcontroller, voltage
Measuring circuit is connected respectively with detection with two measurement ends of sampled voltage and exports industrial-frequency alternating current
Real-time sampling voltage, current measurement circuit is connected with detection also respectively with two measurement ends of sample rate current
The real-time sampling electric current of output industrial-frequency alternating current, microcontroller is surveyed with tension measuring circuit and electric current respectively
Amount circuit, real-time sampling voltage based on industrial-frequency alternating current and the real-time sampling electric current of industrial-frequency alternating current,
Determine and export active power and the reactive power of industrial-frequency alternating current；
Xegregating unit, between electric energy detection equipment and MSP430 single-chip microcomputer, uses photoelectric coupling
Circuit, for realizing the isolation of artificial circuit part and digital circuits section, it is to avoid interfere；
AC/DC power-supply device, including transformer step-down circuit, full bridge rectifier, filter circuit and
Mu balanced circuit, is connected with zero line and the live wire of industrial-frequency alternating current, for by the industrial-frequency alternating current of 220V
Be converted to the unidirectional current of 5V or 3.3V；
ZIGBEE communication interface, is connected with MSP430 single-chip microcomputer, for receiving and to neighbouring nothing
Line kilowatt meter recorder sends active power and reactive power；
Serial erasable memory AT24C16B, has 10,000 erasable circulations, mono-with MSP430
Sheet machine connects, for receiving active power and the reactive power of industrial-frequency alternating current；
Seal moves identification equipment, with contour detecting equipment and serial erasable memory AT24C16B
Connect, for determining the coupling between kilowatt-hour meter housing seal image and default gray scale housing seal image
Degree, and determine whether to export seal movable signal based on matching degree；
Screw variation identification equipment, with contour detecting equipment and serial erasable memory AT24C16B
Connect, for determining the coupling between kilowatt-hour meter housing screw image and default gray scale housing screw image
Degree, and determine whether to export screw variation signal based on matching degree；
MSP430 single-chip microcomputer, is connected with electric energy detection equipment by isolation circuit, is used for receiving power frequency
The active power of alternating current and reactive power；
Wherein, MSP430 single-chip microcomputer also moves identification equipment with seal and screw variation identification equipment divides
Do not connect, when receiving seal movable signal and receiving screw variation signal, send stealing electricity and confirm
Signal, when receiving only seal movable signal or receiving only screw variation signal, sends stealing electricity and doubts
Likelihood signal, when seal movable signal and screw variation signal all do not receive, sends stealing electricity and denies letter
Number；
Wherein, serial erasable memory AT24C16B is additionally operable to store default gray scale housing seal figure
Picture and default gray scale housing screw image.
3. automatization as claimed in claim 2 Anti-current stealing electric meter, it is characterised in that also include:
Time division duplex communication interface, is arranged on the housing of kilowatt-hour meter.
4. automatization as claimed in claim 3 Anti-current stealing electric meter, it is characterised in that:
Time division duplex communication interface is connected with MSP430 single-chip microcomputer, for wireless transmission industrial-frequency alternating current
Active power and reactive power.
5. automatization as claimed in claim 3 Anti-current stealing electric meter, it is characterised in that:
Time division duplex communication interface is connected with MSP430 single-chip microcomputer, for wireless transmission stealing electricity confirmation letter
Number, the doubtful signal of stealing electricity or stealing electricity deny signal.
6. the automatization's Anti-current stealing electric meter as described in claim 2-5 is arbitrary, it is characterised in that:
MSP430 single-chip microcomputer is arranged in the housing of kilowatt-hour meter.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610529574.7A CN107228963A (en) | 2016-03-25 | 2016-03-25 | Automate Anti-current stealing electric meter |
| CN201610180230.XA CN105842501A (en) | 2016-03-25 | 2016-03-25 | Electric meter capable of automatically preventing electricity stealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610180230.XA CN105842501A (en) | 2016-03-25 | 2016-03-25 | Electric meter capable of automatically preventing electricity stealing |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610529574.7A Division CN107228963A (en) | 2016-03-25 | 2016-03-25 | Automate Anti-current stealing electric meter |
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| CN105842501A true CN105842501A (en) | 2016-08-10 |
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| CN201610180230.XA Pending CN105842501A (en) | 2016-03-25 | 2016-03-25 | Electric meter capable of automatically preventing electricity stealing |
| CN201610529574.7A Withdrawn CN107228963A (en) | 2016-03-25 | 2016-03-25 | Automate Anti-current stealing electric meter |
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Cited By (1)
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|---|---|---|---|---|
| CN116486590A (en) * | 2023-05-10 | 2023-07-25 | 漆燕 | Ammeter data analysis system based on remote meter reading mode |
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| CN107228963A (en) | 2017-10-03 |
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Application publication date: 20160810 |