CN105866486A - Picture processing based watt hour meter - Google Patents
Picture processing based watt hour meter Download PDFInfo
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- CN105866486A CN105866486A CN201610293794.4A CN201610293794A CN105866486A CN 105866486 A CN105866486 A CN 105866486A CN 201610293794 A CN201610293794 A CN 201610293794A CN 105866486 A CN105866486 A CN 105866486A
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- 238000012545 processing Methods 0.000 title claims abstract description 15
- 230000006378 damage Effects 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 53
- 230000008569 process Effects 0.000 claims description 47
- 238000001514 detection method Methods 0.000 claims description 34
- 238000004891 communication Methods 0.000 claims description 18
- 239000004973 liquid crystal related substance Substances 0.000 claims description 16
- 238000001914 filtration Methods 0.000 claims description 14
- 230000000087 stabilizing effect Effects 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 7
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 6
- 238000012937 correction Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 6
- 229910052744 lithium Inorganic materials 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims description 6
- 208000027418 Wounds and injury Diseases 0.000 claims description 3
- 230000002457 bidirectional effect Effects 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims description 3
- 208000014674 injury Diseases 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000009466 transformation Effects 0.000 claims description 3
- 238000010606 normalization Methods 0.000 claims description 2
- 238000012935 Averaging Methods 0.000 claims 1
- 239000003086 colorant Substances 0.000 claims 1
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- 238000005259 measurement Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
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- 230000006872 improvement Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
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- 230000007812 deficiency Effects 0.000 description 1
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Classifications
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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
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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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F18/00—Pattern recognition
- G06F18/20—Analysing
- G06F18/22—Matching criteria, e.g. proximity measures
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformation in the plane of the image
- G06T3/60—Rotation of a whole image or part thereof
- G06T3/608—Skewing or deskewing, e.g. by two-pass or three-pass rotation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/20—Analysis of motion
-
- 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
-
- 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
- G06V40/20—Movements or behaviour, e.g. gesture recognition
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
- G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
- G08B13/19602—Image analysis to detect motion of the intruder, e.g. by frame subtraction
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
- G08C23/04—Non-electrical signal transmission systems, e.g. optical systems using light waves, e.g. infrared
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10004—Still image; Photographic image
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/20—Special algorithmic details
- G06T2207/20024—Filtering details
- G06T2207/20032—Median filtering
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30196—Human being; Person
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30232—Surveillance
Abstract
The invention relates to a picture processing based watt hour meter which comprises a clothes detecting device, a character trajectory analysis device and a DSP processing chip. The clothes detecting device and the character trajectory analysis device respectively conduct target analysis on characters in an elevator room, and the DSP processing chip is used for determining the harm degree of the characters in the elevator room based on outputs of the clothes detecting device and the character trajectory analysis device. By the adoption of the picture processing based watt hour meter, functions of the watt hour meter can be enriched, and whether target characters in the elevator room are suspected persons or not can be accurately judged.
Description
The present invention be Application No. 2016101848159, filing date on March 28th, 2016,
The divisional application of the patent of invention entitled " kilowatt-hour meter based on image procossing ".
Technical field
The present invention relates to field of image detection, particularly relate to a kind of kilowatt-hour meter based on image procossing.
Background technology
Kilowatt-hour meter of the prior art develops to intelligent direction, such as, provide remote meter reading interface
Deng, but typically from the point of view of, there is following defect in kilowatt-hour meter of the prior art: the measurement of kilowatt-hour meter
Precision still has much room for improvement;The function singleness of kilowatt-hour meter, still is limited to the behaviour of the detection to power circuit
Make, do not make full use of the public space of the public space shared by kilowatt-hour meter, such as escalator.
Therefore, the present invention proposes a kind of Watt-hour meter, is exclusively used in escalator, it is possible to increase
Self is to the detection efficiency of alternating electromotive force circuit electrical energy parameter and accuracy of detection, meanwhile, it is capable to right
Each personage of escalator clothing and movement locus judge, to determine whether to trigger suspicious people
Thing is reported to the police and is operated, thus avoids the person of resident and property to come to harm.
Summary of the invention
In order to solve the problems referred to above, the invention provides a kind of kilowatt-hour meter based on image procossing,
Can make full use of the kilowatt-hour meter device space of escalator, the most integrated a set of identification system,
Set by clothing detection equipment and personage's trajectory analysis and detect each personage through escalator
The apparel characteristic of target and movement locus, receive clothing questionable signal and receive track can
During suspect signal, send personage's questionable signal, when receiving clothing normal signal and receiving track
During normal signal, send personage's normal signal, it is often more important that, transform prior art to electricity
The electronic structure that can measure, improves stability and the accuracy of electric energy measurement.
According to an aspect of the present invention, it is provided that a kind of kilowatt-hour meter based on image procossing, including
Clothing detection equipment, personage's trajectory analysis equipment and DSP process chip, wear detection equipment clothes
Personage to escalator carries out goal analysis respectively with personage's trajectory analysis equipment, and DSP processes core
Sheet is for based on clothing detection equipment and the output of personage's trajectory analysis equipment, determining escalator
The extent of injury of personage.
More specifically, in described kilowatt-hour meter based on image procossing, including: current sensor,
It is connected with three-phase power circuit, turns for the current signal in three-phase power circuit is carried out size
Change, export the micro-current signal less relative to the current signal in three-phase power circuit;Voltage
Sensor, is connected with three-phase power circuit, for entering the voltage signal in three-phase power circuit
Row size is changed, and exports the micro voltage letter less relative to the voltage signal in three-phase power circuit
Number;Anti-aliasing Filter Circuits, is connected with current sensor and voltage sensor respectively, for right
The micro-current signal received and micro voltage signal carry out anti-aliasing filter process, process with output
After micro-current signal and micro voltage signal;Three-phase electric energy metering equipment, with anti-aliasing filter electricity
Road connects, and determines in three-phase power circuit based on the micro-current signal after processing and micro voltage signal
Each phase and the conjunction active power of phase, reactive power and apparent energy;Rectifying installation, with three-phase
Power circuit connects, and being used for the AC rectification of three-phase power circuit is unidirectional current;Voltage stabilizing sets
Standby, it is connected with rectifying installation, for unidirectional current is carried out voltage stabilizing process;Potential device, and surely
Pressure equipment connects, and processes set obtaining each electronics for the unidirectional current after voltage stabilizing carries out transformation
Standby required running voltage, the running voltage required for each electronic equipment include 36V, 12V,
5V and 3.3V;Calendar clock equipment, including calendar clock chip and lithium battery, calendar clock
Chip is used for providing real time clock data, also by synchronous serial interface I2C and DSP process
Chip connects, and lithium battery is connected with calendar clock chip, in time being calendar under powering-off state
Clock chip provides non-firm power support;Liquid crystal display, drives including a segment liquid crystal display
Device and LCDs, a segment liquid crystal display driver by synchronous serial interface I2C with
DSP processes chip and connects, for controlling the display content in LCDs;FLASH deposits
Storage equipment, processes chip by serial peripheral equipment interface SPI with DSP and carries out bidirectional data exchange;
Integrated Communication Devices, processes chip with DSP and is connected, including infrared transmitter, infrared receiver
Device, optocoupler, RS485 driver and RS485 communication interface, infrared transmitter uses
The modulation light of 38kHz, traffic rate is 1200bps, and infrared remote receiver uses open collector
Mode exports the digital signal demodulating out from the infrared light received, RS485 driver with
RS485 communication interface connects, and optocoupler is for isolating infrared transmitter and infrared remote receiver
In RS485 driver and RS485 communication interface;Image picking-up apparatus, is arranged on kilowatt-hour meter
On housing, shooting direction, towards escalator, is used for shooting high definition escalator image;Complexity is examined
Measurement equipment, is connected with image picking-up apparatus, is used for receiving high definition escalator image, and based on height
Clear escalator image calculates and exports image complexity;Gray scale converting apparatus, sets with image taking
Standby connection, is used for receiving high definition escalator image, for each in high definition escalator image
Pixel, extracts its R, G, B tri-Color Channel component, to R, G, B tri-Color Channel
It is average to be weighted that component gives different weighted values, to obtain corresponding gray value, all
The gray value composition gray level image of pixel;Image filtering equipment, detects with complexity respectively
Equipment and gray scale converting apparatus connect, for determining the filtering strategies of selection based on image complexity,
When image complexity is below default complexity range lower limit, select gaussian filtering strategy to ash
Degreeization image is filtered, when image complexity is more than default complexity range limit, and choosing
Select mean filter strategy gray level image is filtered, when image complexity is in default complexity
Time within scope, select medium filtering strategy that gray level image is filtered;Overall situation binaryzation
Equipment, is connected with complexity detection equipment and image filtering equipment respectively, for multiple based on image
Miscellaneous degree determines the determination strategy of overall situation binary-state threshold, after determining overall situation binary-state threshold,
Use overall situation binary-state threshold that gray level image is carried out binary conversion treatment so that two after process
The pixel value of value image only has 0 or 255 these two kinds selections, wherein true based on image complexity
The determination strategy of fixed overall situation binary-state threshold specifically includes: when image complexity is in default complexity
Time below range lower limit, Two-peak method is used to determine overall situation binary-state threshold, when image complexity exists
When presetting more than 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
Binary-state threshold;Image correcting device, is connected to receive binary picture with overall situation binarizing apparatus
Picture, for carrying out rotation correction process, redundancy cutting process and image successively to binary image
Normalized, to obtain correction chart picture;Person recognition equipment, respectively with image correcting device
Connect to receive binary image and high definition escalator image with image picking-up apparatus, for based on
The benchmark character contour preset identifies the human target of binary image, and based on human target
Position at binary image is partitioned into the human target of correspondence at high definition escalator image
Image;Clothing detection equipment, is connected with person recognition equipment to receive personage's target image, uses
In wearing the clothing to the human target in human target image clothes based on default various suspicious figures
And mate, if the match is successful, output clothing questionable signal, if it fails to match, defeated
Go out to wear normal signal clothes;Personage's trajectory analysis equipment, is connected with person recognition equipment with recipient
Thing target image, is used for based on default suspicious figure's action norm in human target image
The action of human target is mated, if the match is successful, and output trajectory questionable signal, if
Then output trajectory normal signal that it fails to match;DSP processes chip, respectively with potential device, day
Calendar clock equipment, liquid crystal display, FLASH storage device, Integrated Communication Devices and three
Phase electric energy measuring equipment connects, for realizing potential device, calendar clock equipment, liquid crystal
Show equipment, FLASH storage device, Integrated Communication Devices and the control of three-phase electric energy metering equipment
System;DSP processes chip and is connected with clothing detection equipment and personage's trajectory analysis equipment the most respectively,
When receiving clothing questionable signal and receiving track questionable signal, send personage's questionable signal,
When receiving clothing normal signal and receiving track normal signal, send personage's normal signal;
Wherein, DSP processes chip and calendar clock equipment, liquid crystal display, FLASH storage
Equipment, three-phase electric energy metering equipment connect, wear detection equipment and personage's trajectory analysis equipment collection clothes
On Cheng Yi block surface-mounted integrated circuit.
More specifically, in described kilowatt-hour meter based on image procossing: R, G, B tri-color
The weighted value of channel components is respectively 0.3,0.59 and 0.11.
More specifically, in described kilowatt-hour meter based on image procossing: DSP processes chip and is
The dsp processor of TI company.
More specifically, in described kilowatt-hour meter based on image procossing: FLASH storage device
The AT45DB081 chip using capacity to be 1M byte.
More specifically, in described kilowatt-hour meter based on image procossing: FLASH storage device
It is arranged in kilowatt-hour meter housing.
Accompanying drawing explanation
Below with reference to accompanying drawing, embodiment of the present invention are described, wherein:
Fig. 1 is the knot according to the kilowatt-hour meter based on image procossing shown in embodiment of the present invention
Structure block diagram.
Reference: 1 clothing detection equipment;2 personage's trajectory analysis equipment;3DSP process
Chip
Detailed description of the invention
Embodiment to the kilowatt-hour meter based on image procossing of the present invention below with reference to accompanying drawings
It is described in detail.
The design of kilowatt-hour meter of the prior art has certain limitation, owing to kilowatt-hour meter is usual
It is placed on public space, but does not carry miscellaneous function equipment and the situation of public space is entered
Row monitors or realizes other functions, and kilowatt-hour meter is confined to the parameter measurement of power circuit, even if
So, the structure of kilowatt-hour meter of the prior art still has the space optimizing and transforming, existing skill
The detection efficiency of the kilowatt-hour meter in art is the highest, and accuracy of detection still has much room for improvement.
In order to overcome above-mentioned deficiency, the present invention has built a kind of kilowatt-hour meter based on image procossing,
With the escalator public space occupied by existing kilowatt-hour meter, the human target of escalator can be entered
Row detection in real time, to determine whether there is suspicious figure and to decide whether to trigger operation of reporting to the police, with
Time, optimize the internal structure of existing kilowatt-hour meter.
Fig. 1 is the knot according to the kilowatt-hour meter based on image procossing shown in embodiment of the present invention
Structure block diagram, processes chip including clothing detection equipment, personage's trajectory analysis equipment and DSP,
Clothing detection equipment and personage's trajectory analysis equipment personage to escalator respectively carries out target and divides
Analysis, DSP processes chip and is used for based on clothing detection equipment and the output of personage's trajectory analysis equipment,
Determine the extent of injury of the personage of escalator.
Then, continue the concrete structure of the kilowatt-hour meter based on image procossing of the present invention is entered
The explanation of one step.
Described kilowatt-hour meter includes: current sensor, is connected with three-phase power circuit, for three
Current signal in phase power circuit carries out size conversion, and output is relative in three-phase power circuit
The less micro-current signal of current signal;Voltage sensor, is connected with three-phase power circuit,
For the voltage signal in three-phase power circuit carries out size conversion, output is relative to three-phase electricity
The micro voltage signal that voltage signal in line of force road is less;Anti-aliasing Filter Circuits, respectively with electricity
Flow sensor and voltage sensor connect, for believing the micro-current signal received and micro voltage
Number carry out anti-aliasing filter process, the micro-current signal after processing and micro voltage signal with output;
Three-phase electric energy metering equipment, is connected with Anti-aliasing Filter Circuits, based on the micro-electric current letter after processing
Number and micro voltage signal determine in three-phase power circuit each mutually and close the active power of phase, idle
Power and apparent energy.
Described kilowatt-hour meter includes: rectifying installation, is connected with three-phase power circuit, for by three-phase
The AC rectification of power circuit is unidirectional current;Pressure stabilizing device, is connected with rectifying installation, is used for
Unidirectional current is carried out voltage stabilizing process;Potential device, is connected with pressure stabilizing device, after to voltage stabilizing
Unidirectional current carry out transformation process to obtain the running voltage required for each electronic equipment, each
Running voltage required for electronic equipment includes 36V, 12V, 5V and 3.3V;Calendar clock
Equipment, including calendar clock chip and lithium battery, calendar clock chip is used for providing real-time clock
Data, process chip also by synchronous serial interface I2C with DSP and are connected, lithium battery and day
Calendar clock chip connects, for providing non-firm power to prop up for calendar clock chip under powering-off state
Hold;Liquid crystal display, including segment liquid crystal display driver and a LCDs, pen section
Formula LCD driver processes chip by synchronous serial interface I2C with DSP and is connected, and uses
In the display content controlled in LCDs.
Described kilowatt-hour meter includes: FLASH storage device, by serial peripheral equipment interface SPI with
DSP processes chip and carries out bidirectional data exchange;Integrated Communication Devices, processes chip with DSP
Connect, including infrared transmitter, infrared remote receiver, optocoupler, RS485 driver and
RS485 communication interface, infrared transmitter uses the modulation light of 38kHz, and traffic rate is
1200bps, infrared remote receiver uses open collector mode to export from the infrared light received
Demodulation digital signal out, RS485 driver is connected with RS485 communication interface, optocoupler
Device is for being isolated from RS485 driver and RS485 by infrared transmitter and infrared remote receiver
Communication interface;Image picking-up apparatus, is arranged on kilowatt-hour meter housing, and shooting direction is towards elevator
Between, it is used for shooting high definition escalator image.
Described kilowatt-hour meter includes: complexity detection equipment, is connected with image picking-up apparatus, is used for
Receive high definition escalator image, and calculate based on high definition escalator image and export image complexity;
Gray scale converting apparatus, is connected with image picking-up apparatus, is used for receiving high definition escalator image, pin
To each pixel in high definition escalator image, extract its R, G, B tri-Color Channel
Component, to R, G, B tri-Color Channel component give different weighted value to be weighted putting down
All, to obtain corresponding gray value, the gray value composition gray level image of all pixels;Figure
As filter apparatus, is connected with complexity detection equipment and gray scale converting apparatus respectively, be used for based on
Image complexity determines the filtering strategies of selection, when image complexity is under default complexity scope
When limit is following, selects gaussian filtering strategy that gray level image is filtered, work as image complexity
Time more than default complexity range limit, select mean filter strategy that gray level image is carried out
Filtering, when image complexity is within default complexity scope, selects medium filtering strategy pair
Gray level image is filtered.
Described kilowatt-hour meter includes: overall situation binarizing apparatus, respectively with complexity detection equipment and figure
As filter apparatus connects, for determining the determination plan of overall situation binary-state threshold based on image complexity
Slightly, after determining overall situation binary-state threshold, use overall situation binary-state threshold by gray level image
Carry out binary conversion treatment so that the pixel value of the binary image after process only have 0 or 255 this
Based on image complexity, two kinds of selections, wherein determine that the determination strategy of overall situation binary-state threshold is concrete
Including: when image complexity is below default complexity range lower limit, use Two-peak method to determine
Overall situation binary-state threshold, when image complexity is more than default complexity range limit, uses
Maximum variance between clusters determines overall situation binary-state threshold, when image complexity is at default complexity model
Time within enclosing, mean value method is used to determine overall situation binary-state threshold.
Described kilowatt-hour meter includes: image correcting device, is connected to receive with overall situation binarizing apparatus
Binary image, for carrying out successively at rotation correction process, redundancy cutting binary image
Reason and image normalization process, to obtain correction chart picture;Person recognition equipment, respectively with image
Calibration equipment and image picking-up apparatus connect to receive binary image and high definition escalator image,
For identifying the human target of binary image based on default benchmark character contour, and based on
Human target position at binary image is partitioned into correspondence at high definition escalator image
Human target image.
Described kilowatt-hour meter includes: clothing detection equipment, is connected with person recognition equipment with recipient
Thing target image, for wearing clothes in human target image based on default various suspicious figures
The clothing of human target mates, if the match is successful, and output clothing questionable signal, if
It fails to match then exports clothing normal signal;Personage's trajectory analysis equipment, with person recognition equipment
Connect to receive personage's target image, be used for based on default suspicious figure's action norm personage
The action of the human target in target image is mated, if the match is successful, output trajectory can
Suspect signal, if it fails to match, output trajectory normal signal.
Described kilowatt-hour meter includes: DSP processes chip, sets with potential device, calendar clock respectively
Standby, liquid crystal display, FLASH storage device, Integrated Communication Devices and three-phase electric energy meter
Amount equipment connect, for realize to potential device, calendar clock equipment, liquid crystal display,
FLASH storage device, Integrated Communication Devices and the control of three-phase electric energy metering equipment;DSP
Process chip to be connected, when receiving with clothing detection equipment and personage's trajectory analysis equipment the most respectively
When wearing questionable signal clothes and receive track questionable signal, send personage's questionable signal, work as reception
To when wearing normal signal clothes and receive track normal signal, send personage's normal signal;Wherein,
DSP process chip and calendar clock equipment, liquid crystal display, FLASH storage device,
Three-phase electric energy metering equipment connects, wears detection equipment and personage's trajectory analysis integration of equipments clothes one
On block surface-mounted integrated circuit.
Alternatively, in described kilowatt-hour meter: R, G, B tri-weighted value of Color Channel component
It is respectively 0.3,0.59 and 0.11;DSP processes the dsp processor that chip is TI company;
The AT45DB081 chip that FLASH storage device uses capacity to be 1M byte;And
FLASH storage device can be arranged in kilowatt-hour meter housing.
It addition, dsp chip, also referred to as digital signal processor, it is that one is particularly suitable for carrying out
The microprocessor of Digital Signal Processing computing, it is mainly applied is to realize various number real-time
Word signal processing algorithm.
According to the requirement of Digital Signal Processing, dsp chip typically has a following main feature: (1)
A multiplication and a sub-addition can be completed within an instruction cycle;(2) program and data space
Separately, can access instruction and data simultaneously;(3) there is quick RAM in sheet, generally may be used
Accessed in two pieces by independent data/address bus simultaneously;(4) there is low overhead or follow without expense
Ring and the hardware supported redirected;(5) quickly interrupt processing and Hardware I/O support;(6) tool
There are multiple hardware address generators of operation within the monocycle;(7) can be with the multiple behaviour of executed in parallel
Make;(8) support pile line operation, make fetching, decode and the operation such as execution can be with Overlapped Execution.
Use the kilowatt-hour meter based on image procossing of the present invention, for cannot be abundant in prior art
Utilize the technical problem of the device space that escalator kilowatt-hour meter occupies, by escalator kilowatt-hour meter
Upper integrated a set of kilowatt-hour meter based on image procossing, on the one hand, clothing based on passing personage is special
Behavior characteristics of seeking peace combines the identity judging passing personage, on the other hand, optimizes existing electric degree
The power measuring devices of table.
It is it is understood that although the present invention discloses as above with preferred embodiment, but above-mentioned
Embodiment is not limited to the present invention.For any those of ordinary skill in the art,
Without departing under technical solution of the present invention ambit, all may utilize the technology contents of the disclosure above
Technical solution of the present invention is made many possible variations and modification, or is revised as equivalent variations
Equivalent embodiments.Therefore, every content without departing from technical solution of the present invention, according to the present invention
Technical spirit to any simple modification made for any of the above embodiments, equivalent variations and modification, all
Still fall within the range of technical solution of the present invention protection.
Claims (2)
1. a kilowatt-hour meter based on image procossing, including clothing detection equipment, personage's track
Analytical equipment and DSP process chip, clothing detection equipment and personage's trajectory analysis equipment respectively
The personage of escalator is carried out goal analysis, and DSP processes chip for based on clothing detection equipment
With the output of personage's trajectory analysis equipment, determine the extent of injury of the personage of escalator.
2. kilowatt-hour meter based on image procossing as claimed in claim 1, it is characterised in that
Described kilowatt-hour meter includes:
Current sensor, is connected with three-phase power circuit, for the electricity in three-phase power circuit
Stream signal carries out size conversion, exports less relative to the current signal in three-phase power circuit
Micro-current signal;
Voltage sensor, is connected with three-phase power circuit, for the electricity in three-phase power circuit
Pressure signal carries out size conversion, exports less relative to the voltage signal in three-phase power circuit
Micro voltage signal;
Anti-aliasing Filter Circuits, is connected with current sensor and voltage sensor respectively, for right
The micro-current signal received and micro voltage signal carry out anti-aliasing filter process, process with output
After micro-current signal and micro voltage signal;
Three-phase electric energy metering equipment, is connected with Anti-aliasing Filter Circuits, based on the micro-electricity after processing
Stream signal and micro voltage signal determine in three-phase power circuit each mutually and close phase active power,
Reactive power and apparent energy;
Rectifying installation, is connected with three-phase power circuit, for by the alternating current of three-phase power circuit
Rectification is unidirectional current;
Pressure stabilizing device, is connected with rectifying installation, for unidirectional current is carried out voltage stabilizing process;
Potential device, is connected with pressure stabilizing device, for carrying out the unidirectional current after voltage stabilizing at transformation
Manage to obtain the running voltage required for each electronic equipment, the work required for each electronic equipment
36V, 12V, 5V and 3.3V is included as voltage;
Calendar clock equipment, including calendar clock chip and lithium battery, calendar clock chip is used for
Real time clock data is provided, processes chip also by synchronous serial interface I2C with DSP and be connected,
Lithium battery is connected with calendar clock chip, for providing for calendar clock chip under powering-off state
Non-firm power is supported;
Liquid crystal display, including segment liquid crystal display driver and a LCDs, pen section
Formula LCD driver processes chip by synchronous serial interface I2C with DSP and is connected, and uses
In the display content controlled in LCDs;
FLASH storage device, processes chip by serial peripheral equipment interface SPI with DSP and carries out
Bidirectional data exchange;
Integrated Communication Devices, processes chip with DSP and is connected, including infrared transmitter, infrared
Receptor, optocoupler, RS485 driver and RS485 communication interface, infrared transmitter
Using the modulation light of 38kHz, traffic rate is 1200bps, and infrared remote receiver uses colelctor electrode
Open loop manner exports the digital signal demodulating out from the infrared light received, and RS485 drives
Device is connected with RS485 communication interface, and optocoupler is for by infrared transmitter and infrared receiver
Device is isolated from RS485 driver and RS485 communication interface;
Image picking-up apparatus, is arranged on kilowatt-hour meter housing, and shooting direction, towards escalator, is used
In shooting high definition escalator image;
Complexity detection equipment, is connected with image picking-up apparatus, is used for receiving high definition escalator figure
Picture, and calculate based on high definition escalator image and export image complexity;
Gray scale converting apparatus, is connected with image picking-up apparatus, is used for receiving high definition escalator image,
For each pixel in high definition escalator image, extract its R, G, B tri-colors logical
Road component, to R, G, B tri-Color Channel component give different weighted value to be weighted
Averagely, to obtain corresponding gray value, the gray value composition gray level image of all pixels;
Image filtering equipment, is connected with complexity detection equipment and gray scale converting apparatus respectively, uses
In determining the filtering strategies of selection based on image complexity, when image complexity is in default complexity
Time below 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 to gray processing figure
As being filtered, when image complexity is within default complexity scope, select medium filtering
Gray level image is filtered by strategy;
Overall situation binarizing apparatus, is connected with complexity detection equipment and image filtering equipment respectively,
For determining the determination strategy of overall situation binary-state threshold based on image complexity, determining the overall situation two
After value threshold value, use overall situation binary-state threshold that gray level image is carried out binary conversion treatment,
The pixel value making the binary image after processing 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 is complicated
When degree is below default complexity range lower limit, Two-peak method is used to determine overall situation binary-state threshold,
When image complexity is more than default complexity range limit, use maximum variance between clusters true
Fixed overall situation binary-state threshold, when image complexity is within default complexity scope, uses flat
Averaging method determines overall situation binary-state threshold;
Image correcting device, is connected to receive binary image with overall situation binarizing apparatus, is used for
Binary image is carried out successively at rotation correction process, redundancy cutting process and image normalization
Reason, to obtain correction chart picture;
Person recognition equipment, is connected with image correcting device and image picking-up apparatus to receive respectively
Binary image and high definition escalator image, for identifying based on default benchmark character contour
The human target of binary image, and based on human target position at binary image from height
The human target image of correspondence it is partitioned at clear escalator image;
Clothing detection equipment, is connected with person recognition equipment to receive personage's target image, is used for
Based on the default various suspicious figures clothing clothing to the human target in human target image
Mate, if the match is successful, output clothing questionable signal, if it fails to match, export
Clothing normal signal;
Personage's trajectory analysis equipment, is connected with person recognition equipment to receive personage's target image,
For based on default suspicious figure's action norm to the human target in human target image
Action is mated, if the match is successful, and output trajectory questionable signal, if it fails to match,
Output trajectory normal signal;
DSP processes chip, respectively with potential device, calendar clock equipment, liquid crystal display,
FLASH storage device, Integrated Communication Devices and three-phase electric energy metering equipment connect, for real
Now to potential device, calendar clock equipment, liquid crystal display, FLASH storage device,
Integrated Communication Devices and the control of three-phase electric energy metering equipment;DSP process chip the most respectively with clothing
Detection equipment and personage's trajectory analysis equipment connects, when receiving clothing questionable signal and reception
During to track questionable signal, send personage's questionable signal, when receiving clothing normal signal and connecing
When receiving track normal signal, send personage's normal signal;
Wherein, DSP processes chip and calendar clock equipment, liquid crystal display, FLASH
The connection of storage device, three-phase electric energy metering equipment, clothing detection equipment and personage's trajectory analysis set
For being integrated on one piece of surface-mounted integrated circuit;
R, G, B tri-the weighted value of Color Channel component be respectively 0.3,0.59 and 0.11;
DSP processes the dsp processor that chip is TI company.
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CN201610184815.9A CN105628998A (en) | 2016-03-28 | 2016-03-28 | Image processing-based watt-hour meter |
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CN201610293794.4A Withdrawn CN105866486A (en) | 2016-03-28 | 2016-03-28 | Picture processing based watt hour meter |
CN201610184815.9A Withdrawn CN105628998A (en) | 2016-03-28 | 2016-03-28 | Image processing-based watt-hour meter |
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CN109902545B (en) * | 2017-12-11 | 2021-12-24 | 日立楼宇技术(广州)有限公司 | User feature analysis method and system |
CN109711237A (en) * | 2018-07-23 | 2019-05-03 | 永康市巴九灵科技有限公司 | Cabinet lavatory basin automatic homing system |
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Application publication date: 20160817 |