CN106210622A - Input power detecting system - Google Patents
Input power detecting system Download PDFInfo
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- CN106210622A CN106210622A CN201610478231.2A CN201610478231A CN106210622A CN 106210622 A CN106210622 A CN 106210622A CN 201610478231 A CN201610478231 A CN 201610478231A CN 106210622 A CN106210622 A CN 106210622A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/133—Arrangements for measuring electric power or power factor by using digital technique
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/70—Denoising; Smoothing
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/40—Extraction of image or video features
- G06V10/50—Extraction of image or video features by performing operations within image blocks; by using histograms, e.g. histogram of oriented gradients [HoG]; by summing image-intensity values; Projection analysis
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/40—Extraction of image or video features
- G06V10/56—Extraction of image or video features relating to colour
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10024—Color image
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/20—Special algorithmic details
- G06T2207/20021—Dividing image into blocks, subimages or windows
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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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Abstract
The present invention relates to a kind of input power detecting system, including alternating current circuit parameter detection equipment, main control device and A/D conversion equipment, A/D conversion equipment is connected with alternating current circuit parameter detection equipment, 16 A/D conversions are performed respectively for the sampling voltage that alternating current circuit parameter detection equipment is inputted and sampling current, obtain digital current signal and digital voltage signal, main control device is connected with A/D conversion equipment to receive digital current signal and digital voltage signal, and determines input power based on digital current signal and digital voltage signal.By means of the invention it is possible to accurately measure the input power of incoming line.
Description
Technical field
The present invention relates to power measurement field, particularly relate to a kind of input power detecting system.
Background technology
Piracy is taken on the sly and is typically occurred in cinema, theater, arenas, projection room or theatre, and operator is in order to avoid stealing
Bat behavior prevailing, it will usually arrange special staff to be arranged in around auditorium, arranges one every fixed interval,
With the manner behavior of spectators near naked-eye observation, once it is found to have spectators' hand-held mobile terminal and carries out the recording of image or photo
Shooting, goes forward immediately stop or use hand-held infrared emission pen to alert, thus interrupts the behavior of taking on the sly of spectators.
But, there is the drawback of inherence in this artificial anti-mode taken on the sly: first, if auditorium area is relatively big, then needs
A lot of staff is arranged to carry out field monitor, it means that to need substantial amounts of cost of labor；Secondly, staff's naked eyes are swept
The mode inefficiency retouched, and the mode of direct surveillance is susceptible to let slip taking on the sly of some corner location because of asthenia
Person；Finally, the mode arranging staff near spectators brings discomfort to the spectators of normal viewing performance, have impact on them glad
The mood of reward performance.
As can be seen here, the artificial anti-mode taken on the sly has inborn deficiency, in order to overcome above-mentioned drawback, reduces anti-taking on the sly
Operation cost, improves the anti-work efficiency taken on the sly, and operator always searches for the mode that electronics prevents taking on the sly and carries out on-site supervision, electricity
The anti-two kinds of developing direction of having taken on the sly of son, a kind of is to make an issue of on the mobile terminal that spectators are hand-held, when mobile terminal shoots certainly
Dynamic detection is taken on the sly behavior, but this mode is probably due to the selection of mobile terminal is avoided by the person of taking on the sly, another kind be
The scene of taking on the sly disposes electronic jamming device, and this mode can avoid evading of the person of taking on the sly.
The existing anti-electronic jamming device taken on the sly is that a kind of infrared facility is placed in the back side of curtain or stage,
Infrared facility sends the sightless infrared ray of human eye, if the person of taking on the sly is moving terminal or video camera shooting, the most infrared
Line by the video camera imaging of the interference person of taking on the sly, causes image or lower picture quality that the person of taking on the sly obtains, it is impossible to commercially sell
Sell and propagate on network, thus effectively safeguarding copyright interest.
But, this mode needs to launch infrared ray always, and ultrared transmitting is large-scale, needs from each
Infrared ray, relatively costly and poor feasibility are all launched in position.Therefore on-the-spot electronics prevents that the equipment of taking on the sly also needs to find other
Break through direction.
To this end, the present invention proposes the electronic equipment prevented taking on the sly in a kind of new scene, it is possible to by audience seat
The behavioral value of spectators and by the parameter extraction of site environment being determined whether there is the person of taking on the sly in audience seat, and
In time the position at the person of taking on the sly place can be positioned, in order to take to orient warning measure accordingly, remind the person of taking on the sly to put
Abandon the behavior of taking on the sly.
Summary of the invention
In order to solve the problems referred to above, the invention provides a kind of input power detecting system, auditorium figure is set at the scene
As collecting device completes the extraction to auditorium image, introduce various image processing equipment and image analysis equipment judges auditorium
Whether image exists the suspicious person of taking on the sly, in the case of there is the suspicious person of taking on the sly, extracts the suspicious person of taking on the sly place
The numbering at seat, detects ambient parameter or current performance content, to take on the sly according to suspicious the most at the scene in real time
Information and the Site Detection result of person determine the person that really do not takes on the sly, it is even more important that establish a set of can be according to the person of taking on the sly position
Put the mechanism being oriented prompting, thus completely automatically realize the detection of the electronic type to the person of taking on the sly and warning.
According to an aspect of the present invention, it is provided that a kind of input power detecting system, described system includes AC line LUSHEN
Number detection equipment, main control device and A/D conversion equipment, A/D conversion equipment is connected with alternating current circuit parameter detection equipment, for right
The sampling voltage of alternating current circuit parameter detection equipment input and sampling current perform 16 A/D conversions respectively, it is thus achieved that digital current
Signal and digital voltage signal, main control device is connected with A/D conversion equipment to receive digital current signal and digital voltage signal,
And determine input power based on digital current signal and digital voltage signal.
More specifically, in described input power detecting system, including: civil power access interface, with the civil power of theater locations
Connection, for receiving the Alternating Current Power Supply signal of line input；In current transformer and sample circuit, with line
A phase line, B phase line and C phase line connect, for the current signal in A phase line, B phase line and C phase line respectively
It is sampled；Voltage sample circuit, is connected with the A phase line in line, B phase line and C phase line, for A phase line
Voltage signal in road, B phase line and C phase line is sampled respectively；Current signal conditioning circuit, with current transformer and taking
Sample circuit connects, for sampling current is carried out signal condition；Voltage signal conditioning circuit, is connected with voltage sample circuit, uses
In sampling voltage is carried out signal condition；Theater content acquisition equipment, is arranged on theater stage opposite, for Real-time Collection theater
Scene image on stage is to export as real-time scene image；Content analysis apparatus, the Background control being arranged on theater is indoor,
It is connected with sub-screen detection equipment and theater content acquisition equipment respectively, is used for receiving real-time scene image, be additionally operable to receive often
The seat numbering of one screen subimage and its correspondence, carries out content matching by each screen subimage and real-time scene image
To determine content matching percentage ratio, when content matching percentage ratio is more than or equal to preset percentage threshold value, by screen subimage pair
The seat numbering answered is as targeted seat numbering output；Wherein, the number of objects in screen subimage and content matching it are present in
The relation of percentage ratio is non-linear dependence；Wherein, each screen subimage is entered by Content analysis apparatus with real-time scene image
Row content matching is to determine that content matching percentage ratio specifically includes: each object identifying in real-time scene image, for often
One object, detects whether it is present in screen subimage, and the number of objects being present in screen subimage is the most, then content
Match-percentage is the highest；DSP processes chip, and the Background control being arranged on theater is indoor, is connected with Content analysis apparatus, for base
The drive control signal including that targeted seat is numbered is sent in targeted seat numbering；Motor driving apparatus, after being arranged on theater
In platform control room, process chip with DSP respectively and motor device is connected, process, for receiving DSP, the driving control that chip is sent
Signal, and resolve drive control signal to determine that targeted seat is numbered, calculate target level based on targeted seat numbering
Angle and target pitch angle；Motor device, is arranged on the position, roof directly over theater stage, respectively with motor driving apparatus
Connecting with iraser pen, including horizontal drive motor and vertical driving motor, horizontal drive motor is for by iraser pen
Level angle be adjusted to target level angle, vertical driving motor is for being adjusted to target by the luffing angle of iraser pen
Luffing angle；Wherein, motor device sends laser after horizontal drive motor and vertical driving motor all adjust and opens letter
Number；Iraser pen, is arranged on the position, roof directly over theater stage, processes chip with DSP respectively and motor device is connected,
Including battery, Laser emission switch and generating laser, battery provides supply of electric power for the Laser emission for iraser pen,
Laser emission switch is switched to open mode after receiving drive control signal and when receiving laser opening signal, and laser is sent out
Emitter includes pump diode, the laser signal of a length of 671 nanometers of transmitted wave in the case of opening at Laser emission switch；
High-definition image collecting device, is arranged on middle position, theater roof, is used for based on prefixed time interval theater stage opposite
Scene carries out sequential image acquisition with continuous print high-definition image on output time, and wherein prefixed time interval is 0.1 second, high definition figure
The resolution of picture is 3840 × 2160；Preanalysis equipment, is connected with high-definition image collecting device, is used for receiving current high-definition image
With former frame high-definition image, calculate the average brightness value of current high-definition image as the first brightness value, calculating former frame high definition figure
The average brightness value of picture is as the second brightness value, when the first brightness value and the second brightness value are both greater than equal to predetermined luminance threshold value
Time, send early warning signal of taking on the sly, current high-definition image be sent to gray processing processing equipment, otherwise, send and normally watch signal,
Stop current high-definition image is sent to gray processing processing equipment；Gray processing processing equipment, is connected with preanalysis equipment, including leading to
Road parameter extraction unit, weighted value memory element and gray value computing unit, channel parameters extraction unit and current high-definition image
Collecting device connects, for receiving current high-definition image to extract the R passage picture of each pixel in current high-definition image
Element value, G passage pixel value and channel B pixel value, weighted value memory element is used for having prestored R channel weighting value, G passage adds
Weights and channel B weighted value, gray value computing unit is connected with channel parameters extraction unit and weighted value memory element respectively, pin
To each pixel in current high-definition image, by R passage pixel value and the product of R channel weighting value, G passage pixel value and G
The product addition of the product of channel weighting value and channel B pixel value and channel B weighted value with obtain for the ash of pixel
Angle value, and obtain, based on the gray value of each pixel in current high-definition image, the gray level image that current high-definition image is corresponding；
Wherein, R channel weighting value value is 0.298839, and G channel weighting value value is 0.586811, and channel B weighted value value is
0.114350；Histogram distribution detection equipment, is connected with gray processing processing equipment, is used for receiving gray level image, and to gray scale
Change image and carry out the grey level histogram process histogram image with acquisition correspondence, when histogram image presents bimodal distribution, send out
Go out global threshold and select signal, otherwise, send non-global threshold and select signal；Threshold value selects equipment, detects with histogram distribution
Equipment connects, and for when receiving global threshold and selecting signal, being exported as threshold data by global threshold 128, is receiving
During to non-global threshold selection signal, neighbor pixel gray difference threshold 40 is exported as threshold data；Binary conversion treatment sets
Standby, select with threshold value equipment and histogram distribution detection equipment to be connected respectively, be used for when receiving global threshold and selecting signal,
For each pixel in gray level image, when gray value is more than or equal to threshold data, by for pixel arrange
For white level pixel, when gray value is less than threshold data, by for pixel be set to black level pixel, and export
The binary image that gray level image is corresponding；Binary conversion treatment equipment is additionally operable to when receiving non-global threshold and selecting signal,
For each pixel in gray level image, calculate vertical direction upwards apart from the gray scale of pixel of its 3 pixels
Be worth as upper grey scale pixel value, calculate vertical direction downwards apart from the gray value of pixel of its 3 pixels as lower pixel
Gray value, calculated level direction to the left apart from the gray value of pixel of its 3 pixels as left grey scale pixel value, calculate water
Square to the right apart from the gray value of pixel of its 3 pixels as right grey scale pixel value, when upper grey scale pixel value and under
The absolute value of the difference of grey scale pixel value is absolute less than or equal to the difference of threshold data and left grey scale pixel value and right grey scale pixel value
Value less than or equal to threshold data time, by for pixel be set to white level pixel, when upper grey scale pixel value and lower pixel
The absolute value of the difference of gray value is more than threshold more than the absolute value of threshold data or the difference of left grey scale pixel value and right grey scale pixel value
During Value Data, by for pixel be set to black level pixel, and the binary image that output gray level image is corresponding；Figure
As smoothing processing equipment, it is connected with binary conversion treatment equipment, is used for receiving binary image, each in binary image
Individual pixel, when adjacent all pixels exist the trip point of more than half, then by for the gray value of pixel
Retain, otherwise, by for the gray value of pixel be set to white level pixel, and export corresponding smooth of binary image
Image；Medium filtering equipment, is connected with image balance processing equipment, is used for receiving smoothed image, for each in smoothed image
Individual pixel carries out following process to obtain filtering image as target pixel points: with target pixel points position in smoothed image
Put and in smoothed image, take out multiple pixel as multiple reference image vegetarian refreshments as the centre of form of filtration module selected, take multiple
Maximum in the pixel value of reference image vegetarian refreshments and minima, using as pixel maximum and pixel minimum, determine that pixel is maximum
The meansigma methods of value and pixel minimum is using as pixel average, for each reference image vegetarian refreshments, if its pixel value is less than
Pixel average, then replace its pixel value with 0, if its pixel value is more than or equal to pixel average, then retain its pixel value,
After using the meansigma methods of the pixel value of multiple reference image vegetarian refreshments as target pixel points pixel value export；Sub-screen detection equipment,
The Background control being arranged on theater is indoor, is connected to obtain filtering image with medium filtering equipment；Every in filtering image
One pixel, mates its gray value with default mobile terminal screen tonal range, when its gray value is in default movement
Time in terminal screen tonal range, determine that it is screen pixels point；The district that all screen pixels points in filtering image are formed
Territory splits to obtain each screen subimage from filtering image；For each screen subimage, for it in filtering
Position in image determine for screen subimage corresponding seat numbering；Wherein, for seat corresponding to screen subimage
Bit number be hold for the theater seat numbering at spectators place of mobile terminal corresponding to screen subimage；AD73360 core
Sheet, is connected with current signal conditioning circuit and voltage signal conditioning circuit respectively, after the sampling current after conditioning and conditioning
Sampling voltage performs 16 A/D conversions respectively, it is thus achieved that digital current signal and digital voltage signal, is additionally based upon digital current signal
Virtual value and the virtual value of digital voltage signal of digital current signal is determined with digital voltage signal；Alternating Current Power Supply conversion sets
Standby, it is connected with the A phase line in line, B phase line and C phase line, is used for performing alternating current to galvanic conversion, for
Each electrical equipment provides supply of electric power；Wherein, DSP processes chip and is also connected with AD73360 chip, for based on digital current
The virtual value of signal and the virtual value of digital voltage signal realize electrical management control, wherein, and effective when digital current signal
When the product of the virtual value of value and digital voltage signal is less than predetermined power threshold value, enters energy-saving mode, work as digital current signal
Virtual value and digital voltage signal virtual value product more than or equal to predetermined power threshold value time, exit energy-saving mode；Wherein,
Iraser pen also includes receiver of remote-control sytem, and the laser sent for receiving far-end opens remote signal and laser shutdown remote control letter
Number.
More specifically, in described input power detecting system, also include: Alternating Current Power Supply conversion equipment is arranged on theater
Background control is indoor.
More specifically, in described input power detecting system, also include: current signal conditioning circuit is arranged on theater
Background control is indoor.
More specifically, in described input power detecting system, also include: voltage signal conditioning circuit is arranged on theater
Background control is indoor.
More specifically, in described input power detecting system, also include: current transformer and sample circuit are arranged on play
The Background control of institute is indoor.
More specifically, in described input power detecting system, also include: medium filtering equipment, medium filtering equipment and
Picture smooth treatment integration of equipments is on one piece of surface-mounted integrated circuit.
More specifically, in described input power detecting system, also include: WIFI communication interface, process chip even with DSP
Connect, number for wireless transmission targeted seat.
Accompanying drawing explanation
Below with reference to accompanying drawing, embodiment of the present invention are described, wherein:
Fig. 1 is the block diagram according to the input power detecting system shown in embodiment of the present invention.
Reference: 1 alternating current circuit parameter detection equipment；2 main control devices；3A/D conversion equipment
Detailed description of the invention
Below with reference to accompanying drawings the embodiment of the input power detecting system of the present invention is described in detail.
According to the record of Motion Picture Association of America, movie piracy makes film industry lose up to 6,000,000,000 dollars every year.Film
Pirate have far-reaching influence to whole economic sectors, to such an extent as to he is identified a kind of crime in each country
Behavior.And a kind of main source of pirated film images exactly and takes on the sly, the most at the cinema or set by mobile in projection room
Take on the sly for carrying out film.Although BBC reports major part, movie piracy may be from industry internal staff and is supplied to movie critic
Film duplicates in advance, but shooting is taken on the sly and is remained the online pirate important sources sold.In nearest decades, interconnection
The development of guipure width and point-to-point protocol all promotes the further circulation of pirated film.
In order to detect the digital multimedia video of uncommitted illegal propagation, digital watermark by universal research and should
With extensively.In Making Movies or film ejection stage, can take to implant in film to make human eye can't see " pattern " information
Method.If these films are taken on the sly record by video camera, this collection of illustrative plates embedded can be extracted and identify piracy
Source.
Some industry leaders are in order to identify and tracing pirate film, it is proposed that by the method for Coded Anti-Piracy (CAP),
I.e. in film, increase watermark.First Coded Anti-Piracy is designed by Kodak, Deluxe Laboratories pair subsequently
It improves.Philips it is also proposed a mark system being named as CineFence in 2006.But, digital watermark is only
Being a kind of passive measure, he can not eliminate and stop shooting to take on the sly.On the other hand, camera perturbation technique is intended to by serious broken
Bad film visual quality eliminates shooting and takes on the sly, to make these interference signals not interfere with the spectators of movie theatre simultaneously.
The most substantial amounts of camera interference method mainly make use of imaging sensor to respond ultrared principle.In order to disturb shifting
Moving video camera and generate light in the picture of shooting, infrared emitter is installed in cinema.Except those emitters
Etc. extra cost price and regular job expense, this scheme can be by enclosing suitable filter on camera lens.But it is this
Mode is easy to be avoided because of the selection of the person of taking on the sly.
In order to overcome above-mentioned deficiency, the present invention has built a kind of input power detecting system, and the present invention has built a kind of cloud
End data processing system, carries out electronic analysis to auditorium image, and scene performance environment is carried out electronic analysis, and based on two kinds
Analysis result carries out the person of taking on the sly and judges, it addition, the person of taking on the sly is reminded by the positional information being additionally based upon the person of taking on the sly, thus realizes drilling
Go out oriented detection and the orientation warning of the scene person of taking on the sly.
Fig. 1 is the block diagram according to the input power detecting system shown in embodiment of the present invention, described system bag
Including alternating current circuit parameter detection equipment, main control device and A/D conversion equipment, A/D conversion equipment sets with alternating current circuit parameter detecting
Standby connection, for the sampling voltage of alternating current circuit parameter detection equipment input and sampling current being performed respectively 16 A/D conversions,
Obtain digital current signal and digital voltage signal, main control device be connected with A/D conversion equipment with reception digital current signal and
Digital voltage signal, and determine input power based on digital current signal and digital voltage signal.
Then, continue the concrete structure of the input power detecting system of the present invention is further detailed.
Described system includes: civil power access interface, is connected with the line of theater locations, is used for receiving line defeated
The Alternating Current Power Supply signal entered；A phase line, B phase line and C phase line in current transformer and sample circuit, with line
Connect, for the current signal in A phase line, B phase line and C phase line is sampled respectively.
Described system includes: voltage sample circuit, is connected with the A phase line in line, B phase line and C phase line,
For the voltage signal in A phase line, B phase line and C phase line is sampled respectively；Current signal conditioning circuit, with electricity
Current transformer and sample circuit connect, for sampling current is carried out signal condition；Voltage signal conditioning circuit, with voltage sampling
Circuit connects, for sampling voltage is carried out signal condition.
Described system includes: theater content acquisition equipment, is arranged on theater stage opposite, for Real-time Collection theater stage
On scene image using as real-time scene image export.
Described system includes: Content analysis apparatus, and the Background control being arranged on theater is indoor, sets with sub-screen detection respectively
Standby and theater content acquisition equipment connects, and is used for receiving real-time scene image, be additionally operable to receive each screen subimage and its
Corresponding seat numbering, carries out content matching to determine content matching percentage by each screen subimage and real-time scene image
Ratio, when content matching percentage ratio is more than or equal to preset percentage threshold value, numbers seat corresponding for screen subimage as mesh
Standard seat bit number exports；Wherein, the number of objects being present in screen subimage is non-thread with the relation of content matching percentage ratio
Shape relation；Wherein, Content analysis apparatus each screen subimage and real-time scene image are carried out content matching to determine in
Hold match-percentage to specifically include: each object identifying in real-time scene image, for each object, whether detect it
Being present in screen subimage, the number of objects being present in screen subimage is the most, then content matching percentage ratio is the highest.
Described system includes: DSP processes chip, and the Background control being arranged on theater is indoor, is connected with Content analysis apparatus,
For sending, based on targeted seat numbering, the drive control signal including that targeted seat is numbered.
Described system includes: motor driving apparatus, and the Background control being arranged on theater is indoor, processes chip with DSP respectively
Connect with motor device, process, for receiving DSP, the drive control signal that chip is sent, and drive control signal is resolved
To determine that targeted seat is numbered, calculate target level angle and target pitch angle based on targeted seat numbering.
Described system includes: motor device, is arranged on the position, roof directly over theater stage, drives with motor respectively and set
Standby and iraser pen connects, and including horizontal drive motor and vertical driving motor, horizontal drive motor is for by iraser
The level angle of pen is adjusted to target level angle, and vertical driving motor is for being adjusted to mesh by the luffing angle of iraser pen
Mark luffing angle；Wherein, motor device sends laser after horizontal drive motor and vertical driving motor all adjust and opens
Signal.
Described system includes: iraser pen, is arranged on the position, roof directly over theater stage, respectively with DSP process
Chip and motor device connect, and including battery, Laser emission switch and generating laser, battery is for swashing for iraser pen
Light emission provides supply of electric power, Laser emission switch to cut after receiving drive control signal and when receiving laser opening signal
Changing to open mode, generating laser includes pump diode, launches wavelength in the case of opening at Laser emission switch
It it is the laser signal of 671 nanometers.
Described system includes: high-definition image collecting device, is arranged on middle position, theater roof, for based on Preset Time
It is spaced and the scene on theater stage opposite is carried out sequential image acquisition with continuous print high-definition image on output time, when wherein presetting
Between be spaced apart 0.1 second, the resolution of high-definition image is 3840 × 2160.
Described system includes: preanalysis equipment, is connected with high-definition image collecting device, be used for receiving current high-definition image and
Former frame high-definition image, calculates the average brightness value of current high-definition image as the first brightness value, calculating former frame high-definition image
Average brightness value as the second brightness value, when the first brightness value and the second brightness value are both greater than equal to predetermined luminance threshold value,
Send early warning signal of taking on the sly, current high-definition image is sent to gray processing processing equipment, otherwise, sends and normally watch signal, stop
Only current high-definition image is sent to gray processing processing equipment.
Described system includes: gray processing processing equipment, is connected with preanalysis equipment, including channel parameters extraction unit, adds
Weight storage unit and gray value computing unit, channel parameters extraction unit is connected with current high-definition image collecting device, is used for
Receive current high-definition image with extract the R passage pixel value of each pixel in current high-definition image, G passage pixel value and
Channel B pixel value, weighted value memory element is used for having prestored R channel weighting value, G channel weighting value and channel B weighted value,
Gray value computing unit is connected with channel parameters extraction unit and weighted value memory element respectively, for every in current high-definition image
One pixel, by R passage pixel value and the product of R channel weighting value, G passage pixel value and G channel weighting value product with
And the product addition of channel B pixel value and channel B weighted value with obtain for the gray value of pixel, and based on current high definition
In image, the gray value of each pixel obtains the gray level image that current high-definition image is corresponding；Wherein, R channel weighting value value
Being 0.298839, G channel weighting value value is 0.586811, and channel B weighted value value is 0.114350.
Described system includes: histogram distribution detection equipment, is connected with gray processing processing equipment, is used for receiving gray processing figure
Picture, and gray level image is carried out the grey level histogram process histogram image with acquisition correspondence, present double at histogram image
During peak distribution, send global threshold and select signal, otherwise, send non-global threshold and select signal.
Described system includes: threshold value selects equipment, is connected with histogram distribution detection equipment, for receiving overall situation threshold
When value selects signal, global threshold 128 is exported as threshold data, when receiving non-global threshold and selecting signal, by phase
Adjacent pixel gray difference threshold 40 exports as threshold data.
Described system includes: binary conversion treatment equipment, selects equipment and histogram distribution detection equipment respectively with threshold value even
Connect, for when receiving global threshold and selecting signal, for each pixel in gray level image, when gray value is more than
During equal to threshold data, by for pixel be set to white level pixel, when gray value is less than threshold data, will be for
Pixel be set to black level pixel, and the binary image that output gray level image is corresponding；Binary conversion treatment equipment is also
For when receiving non-global threshold and selecting signal, for each pixel in gray level image, calculate vertical direction
Upwards apart from the gray value of pixel of its 3 pixels as upper grey scale pixel value, calculate vertical direction downwards apart from its 3
The gray value of the pixel of pixel is as lower grey scale pixel value, and calculated level direction is to the left apart from the pixel of its 3 pixels
The gray value of point is as left grey scale pixel value, and calculated level direction is made apart from the gray value of the pixel of its 3 pixels to the right
For right grey scale pixel value, when the absolute value of upper grey scale pixel value and the difference of lower grey scale pixel value is less than or equal to threshold data and left picture
Element gray value and right grey scale pixel value difference absolute value less than or equal to threshold data time, by for pixel be set to white appliances
Flat pixel, when the absolute value of upper grey scale pixel value and the difference of lower grey scale pixel value more than threshold data or left grey scale pixel value and
When the absolute value of the difference of right grey scale pixel value is more than threshold data, by for pixel be set to black level pixel, and defeated
Go out the binary image that gray level image is corresponding.
Described system includes: picture smooth treatment equipment, is connected with binary conversion treatment equipment, is used for receiving binary picture
Picture, for each pixel in binary image, when adjacent all pixels exist the trip point of more than half,
Then by for the gray value of pixel retain, otherwise, by for the gray value of pixel be set to white level pixel, and
The smoothed image that output binary image is corresponding.
Described system includes: medium filtering equipment, is connected with image balance processing equipment, is used for receiving smoothed image, right
In smoothed image, each pixel carries out following process to obtain filtering image as target pixel points: with target pixel points
Multiple pixel is taken out as multiple as the centre of form of the filtration module selected in smoothed image in position in smoothed image
Reference image vegetarian refreshments, takes the maximum in the pixel value of multiple reference image vegetarian refreshments and minima using as pixel maximum and pixel
Little value, determine the meansigma methods of pixel maximum and pixel minimum using as pixel average, for each reference image vegetarian refreshments,
If its pixel value is less than pixel average, then replace its pixel value with 0, if its pixel value is more than or equal to pixel average,
Then retaining its pixel value, finally the meansigma methods using the pixel value of multiple reference image vegetarian refreshments is defeated as the pixel value of target pixel points
Go out.
Described system includes: sub-screen detection equipment, and the Background control being arranged on theater is indoor, with medium filtering equipment even
Connect to obtain filtering image；For each pixel in filtering image, by its gray value and default mobile terminal screen ash
Degree scope is mated, and when its gray value is in default mobile terminal screen tonal range, determines that it is screen pixels point；Will
The region of all screen pixels points composition in filtering image splits to obtain each screen subimage from filtering image；
For each screen subimage, for its position in filtering image determine for seat corresponding to screen subimage compile
Number；Wherein, for seat corresponding to screen subimage numbered hold for mobile terminal corresponding to screen subimage
The theater seat numbering at spectators place.
Described system includes: AD73360 chip, connects with current signal conditioning circuit and voltage signal conditioning circuit respectively
Connect, the sampling voltage after the sampling current after conditioning and conditioning performed 16 A/D conversion respectively, it is thus achieved that digital current signal and
Digital voltage signal, is additionally based upon digital current signal and digital voltage signal determines that the virtual value of digital current signal and numeral are electric
The virtual value of pressure signal；Alternating Current Power Supply conversion equipment, is connected with the A phase line in line, B phase line and C phase line, uses
In execution alternating current to galvanic conversion, provide supply of electric power for each electrical equipment.
Wherein, DSP processes chip and is also connected with AD73360 chip, for virtual value sum based on digital current signal
The virtual value of word voltage signal realizes electrical management control, wherein, when virtual value and the digital voltage signal of digital current signal
The product of virtual value less than predetermined power threshold value time, enter energy-saving mode, when the virtual value of digital current signal and numeral electricity
When the product of the virtual value of pressure signal is more than or equal to predetermined power threshold value, exit energy-saving mode.
Wherein, iraser pen also includes receiver of remote-control sytem, for receive the laser that far-end sends open remote signal and
Laser shutdown remote signal.
Alternatively, in described platform: the Background control that Alternating Current Power Supply conversion equipment is arranged on theater is indoor；Current signal
The Background control that modulate circuit is arranged on theater is indoor；The Background control that voltage signal conditioning circuit is arranged on theater is indoor；Electricity
The Background control that current transformer and sample circuit are arranged on theater is indoor；Medium filtering equipment, medium filtering equipment and image are flat
Sliding processing equipment is integrated on one piece of surface-mounted integrated circuit；WIFI communication interface, processes chip with DSP and is connected, for wireless transmission
Targeted seat is numbered.
It addition, dsp chip, also referred to as digital signal processor, it is that one is particularly suitable for carrying out Digital Signal Processing computing
Microprocessor, it is mainly applied is to realize various digital signal processing algorithm real-time.
According to the requirement of Digital Signal Processing, dsp chip typically has following main feature: (1) is an instruction cycle
In can complete a multiplication and a sub-addition；(2) program and data space is separately, can access instruction and data simultaneously；(3) sheet
Inside there is quick RAM, generally can be accessed in two pieces by independent data/address bus simultaneously；(4) there is low overhead or without expense
Circulation and the hardware supported redirected；(5) quickly interrupt processing and Hardware I/O support；(6) there is operation within the monocycle many
Individual hardware address generator；(7) can be with the multiple operation of executed in parallel；(8) support pile line operation, make fetching, decode and perform
Can be with Overlapped Execution Deng operation.
Use the input power detecting system of the present invention, cannot be for the effective electricity of offer of taking on the sly of performance for prior art
The technical problem of son detection, by using targetedly, high-precision a series of images processing equipment and image analysis equipment
The audience status of auditorium is analyzed, is analyzed also by the environment on-the-spot to performance, on the basis of above-mentioned analysis,
The behavior of pirates shoot person in auditorium is accurately detected and location recognition.
Although it is understood that the present invention discloses as above with preferred embodiment, but above-described embodiment being not used to
Limit the present invention.For any those of ordinary skill in the art, without departing under technical solution of the present invention ambit,
Technical solution of the present invention is made many possible variations and modification by the technology contents that all may utilize the disclosure above, or is revised as
Equivalent embodiments with change.Therefore, every content without departing from technical solution of the present invention, according to the technical spirit pair of the present invention
Any simple modification made for any of the above embodiments, equivalent variations and modification, all still fall within the scope of technical solution of the present invention protection
In.
Claims (8)
1. an input power detecting system, described system includes alternating current circuit parameter detection equipment, main control device and A/D conversion
Equipment, A/D conversion equipment is connected with alternating current circuit parameter detection equipment, for taking alternating current circuit parameter detection equipment input
Sample voltage and sampling current perform 16 A/D conversion respectively, it is thus achieved that digital current signal and digital voltage signal, main control device with
A/D conversion equipment connects to receive digital current signal and digital voltage signal, and based on digital current signal and digital voltage
Signal determines input power.
2. input power detecting system as claimed in claim 1, it is characterised in that described system includes:
Civil power access interface, is connected with the line of theater locations, for receiving the Alternating Current Power Supply signal of line input；
Current transformer and sample circuit, be connected with the A phase line in line, B phase line and C phase line, for A phase
Current signal in circuit, B phase line and C phase line is sampled respectively；
Voltage sample circuit, is connected with the A phase line in line, B phase line and C phase line, for A phase line, B phase
Voltage signal in circuit and C phase line is sampled respectively；
Current signal conditioning circuit, is connected with current transformer and sample circuit, for sampling current is carried out signal condition；
Voltage signal conditioning circuit, is connected with voltage sample circuit, for sampling voltage is carried out signal condition；
Theater content acquisition equipment, is arranged on theater stage opposite, and the scene image in Real-time Collection theater stage is to make
Export for real-time scene image；
Content analysis apparatus, the Background control being arranged on theater is indoor, respectively with sub-screen detection equipment and theater content acquisition
Equipment connects, and is used for receiving real-time scene image, is additionally operable to receive the seat numbering of each screen subimage and its correspondence, will
Each screen subimage and real-time scene image carry out content matching to determine content matching percentage ratio, when content matching percentage
Than during more than or equal to preset percentage threshold value, using seat numbering corresponding for screen subimage as targeted seat numbering output；Its
In, the number of objects being present in screen subimage is non-linear dependence with the relation of content matching percentage ratio；Wherein, content is divided
Each screen subimage and real-time scene image are carried out content matching to determine that content matching percentage ratio specifically wraps by desorption device
Include: each object identifying in real-time scene image, for each object, detect whether it is present in screen subimage
In, the number of objects being present in screen subimage is the most, then content matching percentage ratio is the highest；
DSP processes chip, and the Background control being arranged on theater is indoor, is connected with Content analysis apparatus, for based on targeted seat
Numbering sends the drive control signal including that targeted seat is numbered；
Motor driving apparatus, the Background control being arranged on theater is indoor, processes chip with DSP respectively and motor device is connected, use
Process, in receiving DSP, the drive control signal that chip is sent, and resolve drive control signal to determine that targeted seat is compiled
Number, calculate target level angle and target pitch angle based on targeted seat numbering；
Motor device, is arranged on the position, roof directly over theater stage, connects with motor driving apparatus and iraser pen respectively
Connecing, including horizontal drive motor and vertical driving motor, horizontal drive motor is for adjusting the level angle of iraser pen
To target level angle, vertical driving motor is for being adjusted to target pitch angle by the luffing angle of iraser pen；Wherein,
Motor device sends laser opening signal after horizontal drive motor and vertical driving motor all adjust；
Iraser pen, is arranged on the position, roof directly over theater stage, processes chip with DSP respectively and motor device connects
Connecing, including battery, Laser emission switch and generating laser, battery is for providing electric power to supply for the Laser emission of iraser pen
Should, Laser emission switch is switched to open mode after receiving drive control signal and when receiving laser opening signal, swashs
Optical transmitting set includes pump diode, the laser of a length of 671 nanometers of transmitted wave in the case of opening at Laser emission switch
Signal；
High-definition image collecting device, is arranged on middle position, theater roof, is used for based on prefixed time interval theater stage pair
The scene in face carries out sequential image acquisition with continuous print high-definition image on output time, and wherein prefixed time interval is 0.1 second, high
The resolution of clear image is 3840 × 2160；
Preanalysis equipment, is connected with high-definition image collecting device, is used for receiving current high-definition image and former frame high-definition image, meter
Calculate the average brightness value of current high-definition image as the first brightness value, calculate the average brightness value of former frame high-definition image as the
Two brightness values, when the first brightness value and the second brightness value are both greater than equal to predetermined luminance threshold value, send early warning signal of taking on the sly, will
Current high-definition image is sent to gray processing processing equipment, otherwise, sends and normally watches signal, stops sending current high-definition image
To gray processing processing equipment；
Gray processing processing equipment, is connected with preanalysis equipment, including channel parameters extraction unit, weighted value memory element and gray scale
Value computing unit, channel parameters extraction unit is connected with current high-definition image collecting device, be used for receiving current high-definition image with
Extract the R passage pixel value of each pixel in current high-definition image, G passage pixel value and channel B pixel value, weighted value
Memory element is used for having prestored R channel weighting value, G channel weighting value and channel B weighted value, and gray value computing unit is respectively
It is connected with channel parameters extraction unit and weighted value memory element, for each pixel in current high-definition image, by R passage
Pixel value leads to B with product and the channel B pixel value of G channel weighting value with the product of R channel weighting value, G passage pixel value
The product addition of higher with obtain for the gray value of pixel, and based on each pixel in current high-definition image
Gray value obtains the gray level image that current high-definition image is corresponding；Wherein, R channel weighting value value is 0.298839, and G passage adds
Weights value is 0.586811, and channel B weighted value value is 0.114350；
Histogram distribution detection equipment, is connected with gray processing processing equipment, is used for receiving gray level image, and to gray level image
Carry out grey level histogram to process to obtain corresponding histogram image, when histogram image presents bimodal distribution, send the overall situation
Threshold value selects signal, otherwise, sends non-global threshold and selects signal；
Threshold value selects equipment, is connected with histogram distribution detection equipment, for when receiving global threshold and selecting signal, by complete
Office's threshold value 128 exports as threshold data, when receiving non-global threshold and selecting signal, by neighbor pixel gray difference threshold
40 export as threshold data；
Binary conversion treatment equipment, selects equipment and histogram distribution detection equipment to be connected, for receiving entirely respectively with threshold value
When office's threshold value selects signal, for each pixel in gray level image, when gray value is more than or equal to threshold data, will
For pixel be set to white level pixel, when gray value less than threshold data time, by for pixel be set to black
Level pixel point, and the binary image that output gray level image is corresponding；Binary conversion treatment equipment be additionally operable to receive non-entirely
When office's threshold value selects signal, for each pixel in gray level image, calculate vertical direction upwards apart from its 3 pixels
The gray value of the pixel of point as upper grey scale pixel value, calculates vertical direction downwards apart from the pixel of its 3 pixels
Gray value as lower grey scale pixel value, calculated level direction to the left apart from the gray value of pixel of its 3 pixels as a left side
Grey scale pixel value, calculated level direction to the right apart from the gray value of pixel of its 3 pixels as right grey scale pixel value, when
The absolute value of the difference of upper grey scale pixel value and lower grey scale pixel value is less than or equal to threshold data and left grey scale pixel value and right pixel
The absolute value of the difference of gray value less than or equal to threshold data time, by for pixel be set to white level pixel, when upper picture
The absolute value of the difference of element gray value and lower grey scale pixel value more than threshold data or left grey scale pixel value and right grey scale pixel value it
Difference absolute value more than threshold data time, by for pixel be set to black level pixel, and output gray level image pair
The binary image answered；
Picture smooth treatment equipment, is connected with binary conversion treatment equipment, is used for receiving binary image, in binary image
Each pixel, when adjacent all pixels exist the trip point of more than half, then by for pixel
Gray value retains, otherwise, by for the gray value of pixel be set to white level pixel, and it is corresponding to export binary image
Smoothed image；
Medium filtering equipment, is connected with image balance processing equipment, is used for receiving smoothed image, in smoothed image each
Pixel carries out following process to obtain filtering image as target pixel points: with target pixel points position in smoothed image
In smoothed image, take out multiple pixel as multiple reference image vegetarian refreshments as the centre of form of filtration module selected, take multiple ginseng
Examine the maximum in the pixel value of pixel and minima as pixel maximum and pixel minimum, to determine pixel maximum
With the meansigma methods of pixel minimum using as pixel average, for each reference image vegetarian refreshments, if its pixel value is less than picture
Element meansigma methods, then replace its pixel value with 0, if its pixel value is more than or equal to pixel average, then retain its pixel value, finally
The meansigma methods of the pixel value of multiple reference image vegetarian refreshments is exported as the pixel value of target pixel points；
Sub-screen detection equipment, the Background control being arranged on theater is indoor, is connected to obtain filtering image with medium filtering equipment；
For each pixel in filtering image, its gray value is mated with default mobile terminal screen tonal range, when
When its gray value is in default mobile terminal screen tonal range, determine that it is screen pixels point；By owning in filtering image
The region of screen pixels point composition splits to obtain each screen subimage from filtering image；For each screen
Image, for its position in filtering image determine for screen subimage corresponding seat numbering；Wherein, for screen
Seat corresponding to curtain subimage be numbered hold for the theater seat at spectators place of mobile terminal corresponding to screen subimage
Bit number；
AD73360 chip, is connected with current signal conditioning circuit and voltage signal conditioning circuit respectively, to the sampling electricity after conditioning
Sampling voltage after stream and conditioning performs 16 A/D conversions respectively, it is thus achieved that digital current signal and digital voltage signal, is additionally based upon
Digital current signal and digital voltage signal determine the virtual value of digital current signal and the virtual value of digital voltage signal；
Alternating Current Power Supply conversion equipment, is connected with the A phase line in line, B phase line and C phase line, is used for performing exchange
Electricity, to galvanic conversion, provides supply of electric power for each electrical equipment；
Wherein, DSP processes chip and is also connected with AD73360 chip, for virtual value based on digital current signal and numeral electricity
The virtual value of pressure signal realizes electrical management control, wherein, when the virtual value of digital current signal and having of digital voltage signal
When the product of valid value is less than predetermined power threshold value, enter energy-saving mode, when virtual value and the digital voltage letter of digital current signal
Number virtual value product more than or equal to predetermined power threshold value time, exit energy-saving mode；
Wherein, iraser pen also includes receiver of remote-control sytem, and the laser sent for receiving far-end opens remote signal and laser
Close remote signal.
3. input power detecting system as claimed in claim 2, it is characterised in that:
The Background control that Alternating Current Power Supply conversion equipment is arranged on theater is indoor.
4. input power detecting system as claimed in claim 2, it is characterised in that:
The Background control that current signal conditioning circuit is arranged on theater is indoor.
5. input power detecting system as claimed in claim 2, it is characterised in that:
The Background control that voltage signal conditioning circuit is arranged on theater is indoor.
6. input power detecting system as claimed in claim 2, it is characterised in that:
The Background control that current transformer and sample circuit are arranged on theater is indoor.
7. input power detecting system as claimed in claim 2, it is characterised in that:
Medium filtering equipment, medium filtering equipment and picture smooth treatment integration of equipments are on one piece of surface-mounted integrated circuit.
8. input power detecting system as claimed in claim 2, it is characterised in that also include:
WIFI communication interface, processes chip with DSP and is connected, number for wireless transmission targeted seat.
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| CN201610478231.2A CN106210622A (en) | 2016-06-27 | 2016-06-27 | Input power detecting system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610478231.2A CN106210622A (en) | 2016-06-27 | 2016-06-27 | Input power detecting system |
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| CN1230688A (en) * | 1998-03-10 | 1999-10-06 | 株式会社东芝 | Electric power calculating device |
| CN103575955A (en) * | 2012-07-26 | 2014-02-12 | 台达电子工业股份有限公司 | How to get power information |
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Application publication date: 20161207 |