CN107228973A - A kind of electric energy meter based on image procossing - Google Patents
A kind of electric energy meter based on image procossing Download PDFInfo
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- CN107228973A CN107228973A CN201610528145.8A CN201610528145A CN107228973A CN 107228973 A CN107228973 A CN 107228973A CN 201610528145 A CN201610528145 A CN 201610528145A CN 107228973 A CN107228973 A CN 107228973A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
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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
- G01R11/48—Meters specially adapted for measuring real or reactive components; Meters specially adapted for measuring apparent energy
- G01R11/54—Meters specially adapted for measuring real or reactive components; Meters specially adapted for measuring apparent energy for measuring simultaneously at least two of the following three variables: real component, reactive component, apparent energy
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/103—Static body considered as a whole, e.g. static pedestrian or occupant recognition
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V2201/00—Indexing scheme relating to image or video recognition or understanding
- G06V2201/07—Target detection
Abstract
The present invention relates to a kind of electric energy meter based on image procossing, including electric energy detection equipment, figure action track detection equipment, personage's occurrence number detection device and master controller, electric energy detection equipment is used for the parameters of electric power for detecting industrial-frequency alternating current, figure action track detection equipment and personage's occurrence number detection device are respectively used to determine the movement locus and occurrence number of escalator human target based on image procossing, and master controller is connected with electric energy detection equipment, figure action track detection equipment and personage's occurrence number detection device respectively.By means of the invention it is possible to extend the application of electric energy meter, the space that equipment is occupied is reduced.
Description
The present invention be Application No. 2016101781727, the applying date be on March 25th, 2016, a kind of entitled " base
In the application method of the electric energy meter of image procossing " patent divisional application.
Technical field
The present invention relates to image processing field, more particularly to a kind of electric energy meter based on image procossing.
Background technology
From the point of view of the technical Analysis of electric energy meter, the major programme of current power industry electric energy measurement instrument is typically all to be based on
Semiconductor technology and realize accurate measurement purpose.Electric energy meter generally employs high-precision A/D converter, by the electricity of power network
Pressure, current signal are sampled and analog-to-digital conversion, and then data signal is analyzed using high speed microprocessor, sum is handled
According to reprocessing, sorting, so as to produce various continuous datas；Finally realize and set with various using various communication interfaces, man-machine interface
It is standby to be docked.
However, the design of electric energy meter of the prior art has certain limitation, because electric energy meter is generally placed at
Public space, but carrying miscellaneous function equipment is not monitored or realized other functions, electric energy to the situation of public space
Table is confined to the parameter measurement of power circuit, even so, and the structure of electric energy meter of the prior art still has optimization and changed
The space made, the detection efficiency of electric energy meter of the prior art is not high, and accuracy of detection still has much room for improvement.
Therefore, the present invention proposes a kind of electric energy meter based on image procossing, utilizes the escalator occupied by existing electric energy meter
Public space is detected in real time to the human target of escalator, to determine whether there is suspicious figure and decide whether triggering report
It is alert, meanwhile, the internal structure to existing electric energy meter is further integrated and optimized, and improves and Electrical Power Line Parameter is detected
Precision.
The content of the invention
In order to solve the above problems, the invention provides a kind of electric energy meter based on image procossing, introduce personage and go out occurrence
Number detection devices and personage's trajectory analysis equipment, when personage's occurrence number be less than or equal to preset times threshold value and receive track can
During suspect signal, send and there is suspect's alarm signal, meanwhile, the structure to electric energy meter carries out de-redundancy, so as to improve comprehensively
The service behaviour of electric energy meter, saves the public space occupied by equipment.
There is provided a kind of electric energy meter based on image procossing, including electric energy detection equipment, people according to an aspect of the present invention
Thing movement locus detection device, personage's occurrence number detection device and master controller, electric energy detection equipment are used to detect that power frequency is handed over
The parameters of electric power of electricity is flowed, figure action track detection equipment and personage's occurrence number detection device are respectively used to be based on image procossing
Determine the movement locus and occurrence number of escalator human target, master controller respectively with electric energy detection equipment, figure action rail
Mark detection device and the connection of personage's occurrence number detection device.
More specifically, in the electric energy meter based on image procossing, including：Calibrating resistance, is a slide rheostat, electricity
Resistance is 2M Ω, the zero line connection of a fixing end and industrial-frequency alternating current, one end connection of sliding end and second resistance；Second electricity
Resistance, resistance value is 1M Ω, and one end of the other end and first resistor is connected, meanwhile, the other end as sampled voltage a measurement end
Output；First resistor, resistance value is 1.5K Ω, the live wire connection of the other end and industrial-frequency alternating current；First electric capacity, capacitance is
The other end connection of 220pf, one end and second resistance, other end ground connection；3rd resistor, resistance value is 470 Ω, one end and power frequency
The live wire connection of alternating current, the other end is exported as another measurement end of sampled voltage；Second electric capacity, capacitance is 220pf, one
End is connected with the other end of 3rd resistor, other end ground connection；3rd electric capacity, capacitance is 0.018uf, one end and second resistance
The other end is connected, and the other end of the other end and 3rd resistor is connected；4th resistance, resistance value is 0.6m Ω, is inserted in power frequency friendship
On the live wire for flowing electricity, i.e., two ends are all connected with the live wire of industrial-frequency alternating current；5th resistance, resistance value is 470 Ω, one end and the 4th
One end connection of resistance, the other end is exported as a measurement end of sample rate current；6th resistance, resistance value is 470 Ω, with the 4th
The other end connection of resistance, the other end is exported as another measurement end of sample rate current；4th electric capacity, capacitance is 220pf, one
End is connected with the other end of the 5th resistance, other end ground connection；5th electric capacity, capacitance is 220pf, and one end is another with the 6th resistance
One end is connected, other end ground connection；6th electric capacity, capacitance is 0.018uf, and one end is connected with the other end of the 5th resistance, another
End is connected with the other end of the 6th resistance；Capacity voltage dropping circuit, is connected with the zero line and live wire of industrial-frequency alternating current, for by power frequency
Alternating current is changed into 5V low-voltage DCs, for use as the power supply of electric energy detection equipment；Electric energy detection equipment, including voltage measurement electricity
Two measurement ends of road, current measurement circuit and microprocessor, tension measuring circuit and sampled voltage connect to detect simultaneously respectively
Two measurement ends of the real-time sampling voltage of output industrial-frequency alternating current, current measurement circuit and sample rate current connect to detect respectively
And export the real-time sampling electric current of industrial-frequency alternating current, microprocessor respectively with tension measuring circuit and current measurement circuit, be based on
The real-time sampling voltage of industrial-frequency alternating current and the real-time sampling electric current of industrial-frequency alternating current, it is determined that and exporting the active of industrial-frequency alternating current
Power and reactive power；Xegregating unit, between electric energy detection equipment and AVR32 chips, using photoelectric coupling circuit, is used for
Realize isolating for artificial circuit part and digital circuits section, it is to avoid interfere；AC/DC power-supply devices, including transformer drop
Volt circuit, full bridge rectifier, filter circuit and mu balanced circuit, are connected with the zero line and live wire of industrial-frequency alternating current, for inciting somebody to action
220V industrial-frequency alternating current is converted to 5V or 3.3V direct current；ZIGBEE communication interfaces, are connected with AVR32 chips, for connecing
Receive and send active power and reactive power to neighbouring radio meter register equipment；Serial erasable serial erasable memory
AT24C16B, with 10,000 erasable circulations, is connected with AVR32 chips, for receiving the active power of industrial-frequency alternating current and idle
Power；Image capture device, is arranged on electric energy meter housing, and shooting direction is towards escalator, for shooting high definition escalator figure
Picture；Complexity detection device, is connected with image capture device, for receiving high definition escalator image, and based on high definition escalator
Image is calculated and output image complexity；Gray scale conversion equipment, is connected with image capture device, for receiving high definition escalator figure
Picture, for each pixel in high definition escalator image, extracts its Color Channel component of R, G, B tri-, to the color of R, G, B tri-
It is average to be weighted that channel components assign different weighted values, to obtain corresponding gray value, the gray value of all pixels point
Gray level image is constituted, the weighted value of the wherein Color Channel component of R, G, B tri- is respectively 0.3,0.59 and 0.11；Image filtering is set
It is standby, it is connected respectively with complexity detection device and gray scale conversion equipment, the filtering plan for determining selection based on image complexity
Slightly, when image complexity is below default complexity range lower limit, selection gaussian filtering strategy is filtered to gray level image
Ripple, when image complexity is more than default complexity range limit, selection mean filter strategy is filtered to gray level image
Ripple, when image complexity is when within default complexity scope, selection medium filtering strategy is filtered to gray level image；Entirely
Office's binarizing apparatus, is connected with complexity detection device and image filtering equipment respectively, complete for being determined based on image complexity
The determination strategy of office's binary-state threshold, it is determined that after global binary-state threshold, using global binary-state threshold by gray processing figure
As carrying out binary conversion treatment so that the pixel value of the binary image after processing only has 0 or 255 this two kinds selections, wherein being based on
Image complexity determines that the determination strategy of global binary-state threshold is specifically included：When image complexity is under default complexity scope
When limit is following, global binary-state threshold is determined using Two-peak method, when image complexity is more than default complexity range limit,
Global binary-state threshold is determined using maximum variance between clusters, when image complexity is when within default complexity scope, is used
Mean value method determines global binary-state threshold；Image correcting device, is connected to receive binary image with global binarizing apparatus,
Processing and image normalization processing are cut for carrying out rotation correction processing, redundancy successively to binary image, to be corrected
Image；Person recognition equipment, be connected respectively with image capture device and image correcting device with receive high definition escalator image and
Binary image, the human target for identifying binary image based on default benchmark character contour, and based on personage's mesh
It is marked on the position at binary image and corresponding human target image is partitioned at high definition escalator image；Personage's occurrence number
Detection device, is connected with person recognition equipment and serial erasable memory AT24C16B, receives personage's target image, will receive
To human target image in human target and serial erasable memory AT24C16B in each existing human target image
Matched to determine whether human target occurs for the first time, it fails to match is then defined as occurring for the first time, then by human target
Corresponding human target image is arrived in serial erasable memory AT24C16B simultaneously as new existing human target image storage
It is 1 to mark corresponding occurrence number, and the match is successful is then defined as not being to occur for the first time, then by serial erasable memory
The corresponding occurrence number increase by 1 of existing human target image matched in AT24C16B；Personage's occurrence number detection device is also
The occurrence number of the corresponding existing human target image of human target is exported as personage's occurrence number；Personage's trajectory analysis is set
It is standby, be connected with person recognition equipment to receive personage's target image, for based on default suspicious figure's action norm to personage
The action of human target in target image is matched, the output trajectory questionable signal if the match is successful, if matching is lost
Lose then output trajectory normal signal；AVR32 chips, are connected by isolation circuit with electric energy detection equipment, are handed over for receiving power frequency
Flow the active power and reactive power of electricity；AVR32 chips also respectively with personage's occurrence number detection device and personage's trajectory analysis
Equipment is connected, when personage's occurrence number is less than or equal to preset times threshold value and receives track questionable signal, and output, which exists, to be disliked
People's signal is doubted, when personage's occurrence number is more than preset times threshold value or receives track normal signal, suspicion is not present in output
People's signal.
More specifically, in the electric energy meter based on image procossing, in addition to：Mobile communication interface, with AVR32 chips
Connection.
More specifically, in the electric energy meter based on image procossing：Mobile communication interface is used for there will be suspect's letter
The management of public safety center of distal end number is sent to by two-way wireless communication link.
More specifically, in the electric energy meter based on image procossing：Mobile communication interface is used for industrial-frequency alternating current
Active power and reactive power are sent to the meter reading center of distal end.
More specifically, in the electric energy meter based on image procossing：Serial erasable memory AT24C16B is additionally operable to
Store preset times.
Brief description of the drawings
Embodiment of the present invention is described below with reference to accompanying drawing, wherein：
Fig. 1 is the block diagram of the electric energy meter based on image procossing according to embodiment of the present invention.
Reference：1 electric energy detection equipment；2 figure action track detection equipment；3 personage's occurrence number detection devices；4
Master controller
Embodiment
The embodiment to the electric energy meter based on image procossing of the present invention is described in detail below with reference to accompanying drawings.
Electric energy meter is divided by access phase line, can be divided into single-phase, phase three-wire three, three-phase and four-line electric energy meter.
Following item is should be noted using electric energy meter：In low-voltage (being no more than 500 volts) and the feelings of low current (tens peaces)
Under condition, electric energy meter can be directly accessed circuit and measure.In the case of high voltage or high current, electric energy meter cannot directly access
Circuit, need to coordinate voltage transformer or current transformer to use.Electric energy meter for being directly accessed circuit, be according to load voltage
Appropriate size is selected with electric current, makes the rated voltage and rated current of electric energy meter, equal to or slightly greater than the voltage or electricity of load
Stream.In addition, otherwise the power consumption of load will measure inaccurate more than the 10% of electric energy meter rated value.Even basic band is not sometimes
Dynamic aluminium dish is rotated.So electric energy meter can not select too big.If selecting too small also easily to burn out electric energy meter.
Electric energy meter of the prior art develops to intelligent direction, such as providing remote meter reading interface, but it is general from the point of view of,
There is following defect in electric energy meter of the prior art：The measurement accuracy of electric energy meter still has much room for improvement；The function of electric energy meter is single, still
The detection operation to power circuit is confined to, the public space shared by electric energy meter, the public affairs of such as escalator is not made full use of
Cospace.
In order to overcome above-mentioned deficiency, the present invention has built a kind of electric energy meter based on image procossing, is improving the inspection of itself
While surveying efficiency and accuracy of detection, each personage's target action track of escalator and occurrence number can be judged,
To determine whether to find suspicious figure, so as to effectively maintain the security context of building.
Fig. 1 is the block diagram of the electric energy meter based on image procossing according to embodiment of the present invention, including electricity
Can detection device, figure action track detection equipment, personage's occurrence number detection device and master controller, electric energy detection equipment use
In the parameters of electric power of detection industrial-frequency alternating current, figure action track detection equipment and personage's occurrence number detection device are respectively used to
The movement locus and occurrence number of escalator human target are determined based on image procossing, master controller is set with electric energy detection respectively
Standby, figure action track detection equipment and the connection of personage's occurrence number detection device.
Then, continue that the concrete structure of the electric energy meter based on image procossing of the present invention is further detailed.
The electric energy meter includes：Calibrating resistance, is a slide rheostat, and resistance value is 2M Ω, a fixing end and power frequency
One end of the zero line connection of alternating current, sliding end and second resistance is connected；Second resistance, resistance value is 1M Ω, the other end and the
One end connection of one resistance, meanwhile, the other end is exported as a measurement end of sampled voltage；First resistor, resistance value is 1.5K
The live wire connection of Ω, the other end and industrial-frequency alternating current.
The electric energy meter includes：First electric capacity, capacitance is 220pf, and the other end connection of one end and second resistance is another
End ground connection；3rd resistor, resistance value is 470 Ω, and the live wire connection of one end and industrial-frequency alternating current, the other end is used as sampled voltage
Another measurement end output；Second electric capacity, capacitance is 220pf, the other end connection of one end and 3rd resistor, other end ground connection；
3rd electric capacity, capacitance is 0.018uf, and the other end of one end and second resistance is connected, the other end of the other end and 3rd resistor
Connection；4th resistance, resistance value be 0.6m Ω, be inserted on the live wire of industrial-frequency alternating current, i.e., two ends all with industrial-frequency alternating current
Live wire is connected.
The electric energy meter includes：5th resistance, resistance value is 470 Ω, and one end is connected with one end of the 4th resistance, the other end
Exported as a measurement end of sample rate current；6th resistance, resistance value is 470 Ω, is connected with the other end of the 4th resistance, another
Hold and exported as another measurement end of sample rate current；4th electric capacity, capacitance is 220pf, one end and the other end of the 5th resistance
Connection, other end ground connection；5th electric capacity, capacitance is 220pf, and one end is connected with the other end of the 6th resistance, 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 of the other end and the 6th resistance
Connection；Capacity voltage dropping circuit, is connected with the zero line and live wire of industrial-frequency alternating current, for industrial-frequency alternating current to be changed into 5V low-pressure directs
Stream electricity, for use as the power supply of electric energy detection equipment.
The electric energy meter includes：Electric energy detection equipment, including tension measuring circuit, current measurement circuit and microprocessor,
Two measurement ends of tension measuring circuit and sampled voltage connect to detect and export the real-time sampling electricity of industrial-frequency alternating current respectively
Two measurement ends of pressure, current measurement circuit and sample rate current connect to detect and export the real-time sampling of industrial-frequency alternating current respectively
Electric current, microprocessor respectively with tension measuring circuit and current measurement circuit, real-time sampling voltage based on industrial-frequency alternating current and
The real-time sampling electric current of industrial-frequency alternating current, it is determined that and exporting the active power and reactive power of industrial-frequency alternating current.
The electric energy meter includes：Xegregating unit, between electric energy detection equipment and AVR32 chips, using photoelectric coupling
Circuit, for realizing isolating for artificial circuit part and digital circuits section, it is to avoid interfere；AC/DC power-supply devices, including
Transformer step-down circuit, full bridge rectifier, filter circuit and mu balanced circuit, are connected with the zero line and live wire of industrial-frequency alternating current,
Direct current for 220V industrial-frequency alternating current to be converted to 5V or 3.3V.
The electric energy meter includes：ZIGBEE communication interfaces, are connected with AVR32 chips, for receiving and to neighbouring wireless
Kilowatt meter recorder sends active power and reactive power；Serial erasable serial erasable memory AT24C16B, with 10,000 wipings
Circulation is write, is connected with AVR32 chips, active power and reactive power for receiving industrial-frequency alternating current.
The electric energy meter includes：Image capture device, is arranged on electric energy meter housing, and shooting direction is used towards escalator
In shooting high definition escalator image；Complexity detection device, is connected with image capture device, for receiving high definition escalator figure
Picture, and calculated and output image complexity based on high definition escalator image；Gray scale conversion equipment, is connected with image capture device,
For receiving high definition escalator image, for each pixel in high definition escalator image, extract its color of R, G, B tri- and lead to
Road component, different weighted values is assigned to the Color Channel component of R, G, B tri- to be weighted averagely, to obtain corresponding gray scale
Value, the gray value composition gray level image of all pixels point, the weighted value of the wherein Color Channel component of R, G, B tri- is respectively 0.3,
0.59 and 0.11.
The electric energy meter includes：Image filtering equipment, is connected with complexity detection device and gray scale conversion equipment respectively, uses
In the filtering strategies that selection is determined based on image complexity, when image complexity is below default complexity range lower limit, choosing
Gaussian filtering strategy is selected to be filtered gray level image, when image complexity is more than default complexity range limit, choosing
Select mean filter strategy to be filtered gray level image, when image complexity is when within default complexity scope, in selection
Value filtering strategy is filtered to gray level image.
The electric energy meter includes：Global binarizing apparatus, is connected with complexity detection device and image filtering equipment respectively,
Determination strategy for determining global binary-state threshold based on image complexity, it is determined that after global binary-state threshold, using
Gray level image is carried out binary conversion treatment by global binary-state threshold so that the pixel value of the binary image after processing only has 0
Or 255 this two kinds selections, wherein the determination strategy for determining global binary-state threshold based on image complexity is specifically included：Work as image
When complexity is below default complexity range lower limit, global binary-state threshold is determined using Two-peak method, when image complexity exists
When more than default complexity range limit, global binary-state threshold is determined using maximum variance between clusters, when image complexity exists
When within default complexity scope, global binary-state threshold is determined using mean value method.
The electric energy meter includes：Image correcting device, is connected to receive binary image with global binarizing apparatus, is used for
Carry out rotation correction processing, redundancy successively to binary image and cut processing and image normalization processing, to obtain correction chart picture；
Person recognition equipment, is connected to receive high definition escalator image and binaryzation respectively with image capture device and image correcting device
Image, the human target for identifying binary image based on default benchmark character contour, and based on human target two
Position at value image is partitioned into corresponding human target image at high definition escalator image.
The electric energy meter includes：Personage's occurrence number detection device, with person recognition equipment and serial erasable memory
AT24C16B connections, receive personage's target image, by the human target in the human target image received with serially it is erasable
Each existing human target image is matched to determine whether human target occurs for the first time in memory AT24C16B, matching
Failure is then defined as occurring for the first time, then regard the corresponding human target image of human target as new existing human target image
Store in serial erasable memory AT24C16B and mark corresponding occurrence number be 1, the match is successful be then defined as be not
For the first time occur, then by the existing human target image matched in serial erasable memory AT24C16B it is corresponding go out occurrence
Number increase by 1；Personage's occurrence number detection device also using the occurrence number of the corresponding existing human target image of human target as
Personage's occurrence number is exported.
The electric energy meter includes：Personage's trajectory analysis equipment, is connected with person recognition equipment to receive personage's target image,
Matched for the action based on default suspicious figure's action norm to the human target in human target image, if
With successful then output trajectory questionable signal, the output trajectory normal signal if it fails to match.
The electric energy meter includes：AVR32 chips, are connected by isolation circuit with electric energy detection equipment, for receiving power frequency
The active power and reactive power of alternating current；AVR32 chips also divide with personage's occurrence number detection device and personage track respectively
Desorption device is connected, and when personage's occurrence number is less than or equal to preset times threshold value and receives track questionable signal, output is present
Suspect's signal, when personage's occurrence number is more than preset times threshold value or receives track normal signal, output, which is not present, to be disliked
Doubt people's signal.
Alternatively, in the electric energy meter, in addition to：Mobile communication interface, is connected with AVR32 chips；Mobile communication connects
Mouth is used for there will be the management of public safety center that suspect's signal is sent to distal end by two-way wireless communication link；It is mobile logical
Letter interface is used for the meter reading center that the active power and reactive power of industrial-frequency alternating current are sent to distal end；Serial erasable storage
Device AT24C16B can be also used for storing preset times.
In addition, the current main product of electric energy meter industry is in Rapid development stage in the world, belong to Chaoyang industry,
The whole world is carrying out the update of electric energy meter including developed economies and developing country, to adapt to current All Around The World situation
Change.One is global energy-saving and emission-reduction requirement, it is necessary to carry out the accurate measurement of energy, promotes each electricity consumption main body according to energy
Change carry out power consumption control, change consumption habit；Two be to adapt to Management of Electrical Enterprise modernization, information-based requirement, is passed through
Intelligent electric energy meter can fast and effeciently understand the measurements such as power consumer, transformer station point as a node of power network
Electricity consumption real-time condition is there is provided more accurate service and manages.
What is had the call in electric energy meter product is single-phase resident's electric energy meter, but is due to the increasing year by year of electricity consumption of resident
Plus, the increase of power load, related electrical equipment requirement uses three phase supply.Simultaneously load can be improved using three phase supply
Balanced ratio, reduction electric power line loss.Current developed country residential electricity consumption is most of to use three phase supply.Therefore three phase metering is electric
The demand of energy table will be increasing, and the accounting in the demand structure of electric energy meter will be stepped up.
To promote intelligent grid construction, the weight that intelligent electric energy meter and power information acquisition system will be built as intelligent grid
Part is wanted, " all standing, full collection, control in full " to electricity consumption user is realized, power information acquisition system product will be promoted
The lifting of technology.
Using the electric energy meter based on image procossing of the present invention, for electric energy meter detection efficiency in the prior art is low and work(
Technical problem that can not be complete, the integrated detection platform on electric energy meter, by detecting personage's occurrence number and figure action track pair
The character features of escalator are detected where electric energy meter, and when personage's occurrence number is less than or equal to preset times threshold value and reception
During to track questionable signal, there is suspect's signal in output, when personage's occurrence number is more than preset times threshold value or receives rail
During mark normal signal, suspect's signal is not present in output, so that the automation alarm to suspicious figure is realized, meanwhile, it is also perfect
The electric energy detection function of electric energy meter, improves the service behaviour of electric energy meter comprehensively.
Although it is understood that the present invention is disclosed as above with preferred embodiment, but above-described embodiment and being not used to
Limit the present invention.For any those skilled in the art, without departing from the scope of the technical proposal of the invention,
Many possible variations and modification are all made to technical solution of the present invention using the technology contents of the disclosure above, or are revised as
With the equivalent embodiment of change.Therefore, every content without departing from technical solution of the present invention, the technical spirit pair according to the present invention
Any simple modifications, equivalents, and modifications made for any of the above embodiments, still fall within the scope of technical solution of the present invention protection
It is interior.
Claims (2)
1. a kind of electric energy meter based on image procossing, including electric energy detection equipment, figure action track detection equipment, personage's appearance
Number of times detection device and master controller, electric energy detection equipment are used for the parameters of electric power for detecting industrial-frequency alternating current, figure action track
Detection device and personage's occurrence number detection device are respectively used to determine the action rail of escalator human target based on image procossing
Mark and occurrence number, master controller are examined with electric energy detection equipment, figure action track detection equipment and personage's occurrence number respectively
Measurement equipment is connected.
2. the electric energy meter as claimed in claim 1 based on image procossing, it is characterised in that the electric energy meter includes：
Calibrating resistance, is a slide rheostat, and resistance value is 2M Ω, and the zero line connection of a fixing end and industrial-frequency alternating current is sliding
Moved end and one end of second resistance are connected；
Second resistance, resistance value is 1M Ω, and one end of the other end and first resistor is connected, meanwhile, the other end is used as sampled voltage
A measurement end output；
First resistor, resistance value is 1.5K Ω, the live wire connection of the other end and industrial-frequency alternating current；
First electric capacity, capacitance is 220pf, the other end connection of one end and second resistance, other end ground connection；
3rd resistor, resistance value is 470 Ω, and the live wire connection of one end and industrial-frequency alternating current, the other end is used as the another of sampled voltage
One measurement end is exported；
Second electric capacity, capacitance is 220pf, the other end connection of one end and 3rd resistor, other end ground connection；
3rd electric capacity, capacitance is 0.018uf, and the other end of one end and second resistance is connected, the other end and 3rd resistor it is another
One end is connected；
4th resistance, resistance value is 0.6m Ω, is inserted on the live wire of industrial-frequency alternating current, i.e. fire of the two ends all with industrial-frequency alternating current
Line is connected；
5th resistance, resistance value is 470 Ω, and one end is connected with one end of the 4th resistance, the other end as sample rate current a survey
Measure end output；
6th resistance, resistance value be 470 Ω, be connected with the other end of the 4th resistance, the other end as sample rate current another survey
Measure end output；
4th electric capacity, capacitance is 220pf, and one end is connected with the other end of the 5th resistance, other end ground connection；
5th electric capacity, capacitance is 220pf, and one end is connected with the other end of the 6th resistance, other end ground connection；
6th electric capacity, capacitance is 0.018uf, and one end is connected with the other end of the 5th resistance, and the other end is another with the 6th resistance
One end is connected；
Capacity voltage dropping circuit, is connected with the zero line and live wire of industrial-frequency alternating current, for industrial-frequency alternating current to be changed into 5V low-pressure directs
Stream electricity, for use as the power supply of electric energy detection equipment；
Electric energy detection equipment, including tension measuring circuit, current measurement circuit and microprocessor, tension measuring circuit and sampling electricity
Two measurement ends of pressure connect to detect and export the real-time sampling voltage of industrial-frequency alternating current, current measurement circuit and sampling respectively
Two measurement ends of electric current connect to detect and export the real-time sampling electric current of industrial-frequency alternating current respectively, microprocessor respectively with electricity
Press measuring circuit and current measurement circuit, the real-time sampling electricity of real-time sampling voltage and industrial-frequency alternating current based on industrial-frequency alternating current
Stream, it is determined that and exporting the active power and reactive power of industrial-frequency alternating current；
Xegregating unit, between electric energy detection equipment and AVR32 chips, using photoelectric coupling circuit, for realizing simulation electricity
Road part isolates with digital circuits section, it is to avoid interfere；
AC/DC power-supply devices, including transformer step-down circuit, full bridge rectifier, filter circuit and mu balanced circuit, are handed over power frequency
Flow zero line and the live wire connection of electricity, the direct current for 220V industrial-frequency alternating current to be converted to 5V or 3.3V；
ZIGBEE communication interfaces, are connected with AVR32 chips, for receiving and sending active power to neighbouring radio meter register equipment
And reactive power；
Serial erasable serial erasable memory AT24C16B, with 10,000 erasable circulations, is connected with AVR32 chips, is used for
Receive the active power and reactive power of industrial-frequency alternating current；
Image capture device, is arranged on electric energy meter housing, and shooting direction is towards escalator, for shooting high definition escalator figure
Picture；
Complexity detection device, is connected with image capture device, for receiving high definition escalator image, and based on high definition escalator
Image is calculated and output image complexity；
Gray scale conversion equipment, is connected with image capture device, for receiving high definition escalator image, for high definition escalator image
In each pixel, extract its Color Channel component of R, G, B tri-, different power assigned to the Color Channel component of R, G, B tri-
Weight values are average to be weighted, to obtain corresponding gray value, the gray value composition gray level image of all pixels point, wherein R,
The weighted value of the Color Channel component of G, B tri- is respectively 0.3,0.59 and 0.11；
Image filtering equipment, is connected with complexity detection device and gray scale conversion equipment, for true based on image complexity respectively
Determine the filtering strategies of selection, when image complexity is below default complexity range lower limit, selection gaussian filtering strategy is to ash
Degreeization image is filtered, when image complexity is more than default complexity range limit, and selection mean filter strategy is to ash
Degreeization image is filtered, and when image complexity is when within default complexity scope, selection medium filtering strategy is to gray processing
Image is filtered；
Global binarizing apparatus, is connected with complexity detection device and image filtering equipment, for based on image complexity respectively
It is determined that the determination strategy of global binary-state threshold, it is determined that after global binary-state threshold, using global binary-state threshold by ash
Degreeization image carries out binary conversion treatment so that the pixel value of the binary image after processing only has 0 or 255 this two kinds selections, its
In determine that the determination strategy of global binary-state threshold is specifically included based on image complexity：When image complexity is in default complexity
When below range lower limit, global binary-state threshold is determined using Two-peak method, when image complexity is in default complexity range limit
During the above, global binary-state threshold is determined using maximum variance between clusters, when image complexity is within default complexity scope
When, global binary-state threshold is determined using mean value method；
Image correcting device, is connected to receive binary image with global binarizing apparatus, for entering successively to binary image
The processing of row rotation correction, redundancy cut processing and image normalization processing, to obtain correction chart picture；
Person recognition equipment, is connected to receive high definition escalator image and two respectively with image capture device and image correcting device
Value image, the human target for identifying binary image based on default benchmark character contour, and based on human target
Position at binary image is partitioned into corresponding human target image at high definition escalator image；
Personage's occurrence number detection device, is connected, recipient with person recognition equipment and serial erasable memory AT24C16B
Thing target image, by the human target in the human target image received and serial erasable memory AT24C16B each
Existing human target image is matched to determine whether human target occurs for the first time, and it fails to match is then defined as going out for the first time
It is existing, then arrive serial erasable storage using the corresponding human target image of human target as new existing human target image storage
Device AT24C16B is interior and marks corresponding occurrence number to be 1, and the match is successful is then defined as not being to occur for the first time, then serially will may be used
The corresponding occurrence number increase by 1 of existing human target image matched in erasing memory AT24C16B；Personage's occurrence number
Detection device also exports the occurrence number of the corresponding existing human target image of human target as personage's occurrence number；
Personage's trajectory analysis equipment, is connected to receive personage's target image with person recognition equipment, for based on default suspicious
Action of the figure action specification to the human target in human target image is matched, and output trajectory can if the match is successful
Suspect signal, the output trajectory normal signal if it fails to match；
AVR32 chips, are connected by isolation circuit with electric energy detection equipment, active power and nothing for receiving industrial-frequency alternating current
Work(power；AVR32 chips are also connected with personage's occurrence number detection device and personage's trajectory analysis equipment respectively, when personage occurs
When number of times is less than or equal to preset times threshold value and receives track questionable signal, there is suspect's signal in output, when personage occurs
When number of times is more than preset times threshold value or receives track normal signal, suspect's signal is not present in output；
Mobile communication interface, is connected with AVR32 chips；
Mobile communication interface is used for the meter reading center that the active power and reactive power of industrial-frequency alternating current are sent to distal end.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610528145.8A CN107228973A (en) | 2016-03-25 | 2016-03-25 | A kind of electric energy meter based on image procossing |
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| CN201610178172.7A CN105866528A (en) | 2016-03-25 | 2016-03-25 | Electric energy meter application method based on image processing |
| CN201610528145.8A CN107228973A (en) | 2016-03-25 | 2016-03-25 | A kind of electric energy meter based on image procossing |
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| CN201610178172.7A Pending CN105866528A (en) | 2016-03-25 | 2016-03-25 | Electric energy meter application method based on image processing |
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| CN101320053A (en) * | 2008-07-17 | 2008-12-10 | 菏泽供电公司 | Wireless data and image double-acquisition anti-electricity theft monitoring system and method thereof |
| CN101739546A (en) * | 2008-11-05 | 2010-06-16 | 沈阳工业大学 | Image cross reconstruction-based single-sample registered image face recognition method |
| CN101853397A (en) * | 2010-04-21 | 2010-10-06 | 中国科学院半导体研究所 | Bionic human face detection method based on human visual characteristics |
| US8655029B2 (en) * | 2012-04-10 | 2014-02-18 | Seiko Epson Corporation | Hash-based face recognition system |
| CN204008845U (en) * | 2014-08-06 | 2014-12-10 | 王峰 | A kind of single-phase electric energy meter metering circuit |
| CN104237588A (en) * | 2014-08-27 | 2014-12-24 | 深圳供电局有限公司 | Electricity larceny prevention metering box image collection device |
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Application publication date: 20171003 |