CN105866486A - Picture processing based watt hour meter - Google Patents

Picture processing based watt hour meter Download PDF

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Publication number
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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CN
China
Prior art keywords
image
equipment
complexity
signal
personage
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Application number
CN201610293794.4A
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Chinese (zh)
Inventor
不公告发明人
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Wuxi Zhigu Ruituo Technology Service Co Ltd
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Wuxi Zhigu Ruituo Technology Service Co Ltd
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Priority to CN201610293794.4A priority Critical patent/CN105866486A/en
Publication of CN105866486A publication Critical patent/CN105866486A/en
Withdrawn legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R11/00Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R11/00Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
    • G01R11/02Constructional details
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F18/00Pattern recognition
    • G06F18/20Analysing
    • G06F18/22Matching criteria, e.g. proximity measures
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00Geometric image transformation in the plane of the image
    • G06T3/60Rotation of a whole image or part thereof
    • G06T3/608Skewing or deskewing, e.g. by two-pass or three-pass rotation
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00Image analysis
    • G06T7/0002Inspection of images, e.g. flaw detection
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00Image analysis
    • G06T7/20Analysis of motion
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06VIMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06VIMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/20Movements or behaviour, e.g. gesture recognition
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00Burglar, theft or intruder alarms
    • G08B13/18Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189Actuation 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
    • G08B13/194Actuation 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
    • G08B13/196Actuation 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
    • G08B13/19602Image analysis to detect motion of the intruder, e.g. by frame subtraction
    • GPHYSICS
    • G08SIGNALLING
    • G08CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C23/00Non-electrical signal transmission systems, e.g. optical systems
    • G08C23/04Non-electrical signal transmission systems, e.g. optical systems using light waves, e.g. infrared
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00Indexing scheme for image analysis or image enhancement
    • G06T2207/10Image acquisition modality
    • G06T2207/10004Still image; Photographic image
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00Indexing scheme for image analysis or image enhancement
    • G06T2207/20Special algorithmic details
    • G06T2207/20024Filtering details
    • G06T2207/20032Median filtering
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00Indexing scheme for image analysis or image enhancement
    • G06T2207/30Subject of image; Context of image processing
    • G06T2207/30196Human being; Person
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00Indexing scheme for image analysis or image enhancement
    • G06T2207/30Subject of image; Context of image processing
    • G06T2207/30232Surveillance

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

Kilowatt-hour meter based on image procossing
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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Application publication date: 20160817