CN107545266A - Current sample processing platform - Google Patents

Abstract

The present invention relates to a kind of current sample processing platform, including current transformer and sample circuit, civil power access interface and current signal conditioning circuit, civil power access interface is connected with the line of projection room position, for receiving the Alternating Current Power Supply signal of line input, current transformer and sample circuit, with the A phase lines in line, B phase lines connect with C phase lines, for to A phase lines, current signal in B phase lines and C phase lines is sampled respectively, current signal conditioning circuit, it is connected with current transformer and sample circuit, for carrying out signal condition to sampling current.By means of the invention it is possible to accurately perform the sampling and processing of the mains current to projection room access.

Description

Current sample processing platform

Technical field

The present invention relates to current sample field, more particularly to a kind of current sample processing platform.

Background technology

Currently, the behavior of taking on the sly of the performance such as cinema, theater, arenas, projection room or theatre occasion is very serious, due to The development of camera technique and the development of image processing techniques, the quality of image that scene is taken on the sly are very high, it is easy to for carrying out net Network is sold or dish sale, and so by the pressure of serious blow legal copy operator, certain negative effect is brought to industry development.

For example, according to the record of Motion Picture Association of America, movie piracy causes film industry to lose up to 6,000,000,000 dollars every year. Movie piracy has far-reaching influence to whole economic sectors, so that he is identified a kind of in each country Criminal offence.And a kind of main source of pirated film is exactly that shooting is taken on the sly, that is, pass through shifting in cinema or projection room Dynamic equipment carries out film and taken on the sly.Although BBC reports that most of movie piracy may be from industry internal staff and be supplied to shadow The advance film duplicates of people are commented, but it is still an important sources of online pirate sale that shooting, which is taken on the sly,.In nearest decades, The development of Internet bandwidth and point-to-point protocol all promotes the further circulation of pirated film.

In order to detect the uncommitted digital multimedia video illegally propagated, digital watermark by universal research and is answered With extensive.In Making Movies or film ejection stage, implantation can be taken to make one eye in film and can't see " pattern " information Method.If these films are taken on the sly record by video camera, collection of illustrative plates of this insertion can be extracted and identify piracy Source.

Some industry leaders are in order to identify and tracing pirate film, it is proposed that by Coded Anti-Piracy (CAP) method, I.e. toward increasing watermark in film.First Coded Anti-Piracy is designed by Kodak, subsequent Deluxe Laboratories couple It is improved.Philips it is also proposed the mark for being named as a CineFence system in 2006.However, digital watermark is only It is a kind of passive measure, he can not eliminate and prevent shooting from taking on the sly.On the other hand, camera perturbation technique is intended to by seriously breaking Bad film visual quality is taken on the sly to eliminate shooting, while these interference signals is not interfered with the spectators of movie theatre.

Early stage, substantial amounts of camera interference method mainly make use of the principle of imaging sensor response infrared ray.Moved to disturb Move video camera and light is generated in the picture of shooting, infrared emitter is mounted in the cinema.Except those transmitters Etc. extra cost and regular job expense, this scheme can be by enclosing appropriate filter on camera lens.It is but this Mode is easy to be avoided because of the selection of the person of taking on the sly.

Therefore, it is necessary to which a kind of anti-mechanism of taking on the sly in new performance place, can carry out electronic analysis, to existing to auditorium image Field performance environment carries out electronic analysis, and carries out the person of taking on the sly based on two kinds of analysis results and judge, in addition, the position also based on the person of taking on the sly Confidence breath is reminded the person of taking on the sly, so as to realize that the oriented detection of the live person of taking on the sly of performance and orientation alert.

The content of the invention

In order to solve the above problems, the invention provides a kind of current sample processing platform, sets auditorium figure at the scene As extraction of the collecting device completion to auditorium image, introduce various image processing equipments and image analysis equipment judges auditorium Whether there is the suspicious person of taking on the sly in image, in the case where the suspicious person of taking on the sly be present, extracting the suspicious person of taking on the sly place The numbering at seat, then also ambient parameter or current performance content are detected in real time at the scene, to be taken on the sly according to suspicious The information and Site Detection result of person determine the really person of taking on the sly, it is even more important that establish it is a set of can be according to the person of taking on the sly position The mechanism for being oriented prompting is put, so as to completely automatically realize electronic type detection and warning to the person of taking on the sly.

According to an aspect of the present invention, there is provided a kind of current sample processing platform, the platform include current transformer And sample circuit, civil power access interface and current signal conditioning circuit, the line of civil power access interface and projection room position Connect, the Alternating Current Power Supply signal inputted for receiving line, the A in current transformer and sample circuit, with line Phase line, B phase lines connect with C phase lines, for entering respectively to the current signal in A phase lines, B phase lines and C phase lines Row sampling, current signal conditioning circuit, is connected with current transformer and sample circuit, for carrying out signal tune to sampling current Reason.

More specifically, in the current sample processing platform, including：Projection room content acquisition equipment, is arranged on projection Room curtain opposite, for gathering the scene image on projection room curtain in real time to be exported as real-time scene image；Content analysis Equipment, it is arranged in the Background control room of projection room, is connected respectively with sub-screen analytical equipment and projection room content acquisition equipment, For receiving real-time scene image, it is additionally operable to receive each screen subgraph seat numbering corresponding with its, by each screen Curtain subgraph and real-time scene image carry out content matching to determine content matching percentage, when content matching percentage is more than etc. When preset percentage threshold value, seat numbering corresponding to screen subgraph is numbered as targeted seat and exported；Wherein, content point Each screen subgraph is carried out content matching to determine that content matching percentage specifically wraps by desorption device with real-time scene image Include：Each pixel in real-time scene image and each pixel of each screen subgraph are subjected to pixel value matching, pixel The quantity of the value pixel that the match is successful is more, and content matching percentage is higher corresponding to screen subgraph；At Freescale IMX6 Equipment is managed, is arranged in the Background control room of projection room, is connected with Content analysis apparatus, for being sent based on targeted seat numbering Include the driving control signal of targeted seat numbering；Orientation equipment, it is arranged in the Background control room of projection room, with Freescale IMX6 processing equipments connect, and for being parsed to driving control signal to determine that targeted seat is numbered, are compiled based on targeted seat Number alarm signal of taking pictures is sent to numbering corresponding prompting mechanism and two-way speaker with targeted seat；Prompting mechanism, it is each One is set on individual spectators seat, position is in the rear that spectators seat corresponds to the chair back, including spring, expansion controller and wooden Protrusion member, wooden protrusion member are arranged on the front of spring, and expansion controller is connected with orientation equipment, for controlling spring Stretching, extension and contraction；Wherein, expansion controller stretches spring to realize wooden protrusion member pair when receiving and taking pictures alarm signal The point of spectators' back touches；Two-way speaker, one is set on each spectators seat, position is in spectators seat and corresponds to handrail It is interior, it is connected with orientation equipment, for playing voice document corresponding with no photographing when receiving and taking pictures alarm signal；CMOS Sensing equipment, projection room roof middle position is arranged on, for the spectators based on prefixed time interval to projection room curtain opposite Seat is carried out sequential image acquisition and is selected from 0.5 second to 0.1 with continuous auditorium image on output time, wherein prefixed time interval Between second；Preliminary examination measurement equipment, it is connected with CMOS sensing equipments, for receiving current auditorium image and former frame auditorium figure Picture, the average brightness value of current auditorium image is calculated as the first brightness value, calculates the average bright of former frame auditorium image Angle value when the first brightness value and the second brightness value are both greater than equal to predetermined luminance threshold value, are sent and taken on the sly as the second brightness value Pre-warning signal, current auditorium image is sent to gray processing processing equipment, otherwise, sends normal viewing signal, stopping ought Preceding auditorium image is sent to gray processing processing equipment；Gray processing processing equipment, it is connected with preliminary examination measurement equipment, including channel parameters Extraction unit, weighted value memory cell and gray value computing unit, channel parameters extraction unit are used to receive current auditorium figure Picture, R passages pixel value, G passages pixel value and the channel B pixel value of each pixel in current auditorium image are extracted, Weighted value memory cell is used to prestore R channel weightings value, G channel weightings value and channel B weighted value, and gray value calculates single Member is connected with channel parameters extraction unit and weighted value memory cell respectively, for each pixel in current auditorium image Point, by the product of R passages pixel value and R channel weighting values, G passages pixel value and the product and channel B picture of G channel weighting values The gray value for the pixel that the product addition of plain value and channel B weighted value is directed to obtaining, and based in current auditorium image The gray value of each pixel obtains gray level image corresponding to current auditorium image；Wherein, R channel weightings value value is 0.298839, G channel weighting value value is 0.586811, and channel B weighted value value is 0.114350；Histogram distribution detection is set It is standby, be connected with gray processing processing equipment, for receiving gray level image, and gray level image is carried out grey level histogram processing with Histogram image corresponding to acquisition, when bimodal distribution is presented in histogram image, global threshold selection signal is sent, otherwise, hair Go out non-global threshold selection signal；Threshold value selects equipment, is connected with histogram distribution detection device, for receiving global threshold When being worth selection signal, exported global threshold 128 as threshold data, when receiving non-global threshold selection signal, by phase Adjacent pixel gray level difference threshold value 40 exports as threshold data；Binary conversion treatment equipment, select equipment and Nogata with threshold value respectively Figure distribution detection device connects, for when receiving global threshold selection signal, for each picture in gray level image Vegetarian refreshments, when gray value is more than or equal to threshold data, by for pixel be arranged to white level pixel, when gray value is less than During threshold data, by for pixel be arranged to black level pixel, and binary image corresponding to output gray level image； Binary conversion treatment equipment is additionally operable to when receiving non-global threshold selection signal, for each pixel in gray level image Point, calculate vertical direction upwards apart from its 3 pixels pixel gray value as upper grey scale pixel value, calculate Vertical Square To downwards apart from its 3 pixels pixel gray value as lower grey scale pixel value, calculated level direction to the left apart from its 3 The gray value of the pixel of individual pixel is as left grey scale pixel value, and calculated level direction is to the right apart from the picture of its 3 pixels The gray value of vegetarian refreshments is as 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 when the absolute value of the difference of left grey scale pixel value and right grey scale pixel value is less than or equal to threshold data, by for picture Vegetarian refreshments is arranged to white level pixel, when upper grey scale pixel value and the absolute value of the difference of lower grey scale pixel value be more than threshold data or When the absolute value of the difference of left grey scale pixel value and right grey scale pixel value is more than threshold data, by for pixel be arranged to black appliances Flat pixel, and binary image corresponding to output gray level image；Picture smooth treatment equipment, connect with binary conversion treatment equipment Connect, for receiving binary image, for each pixel in binary image, exist when in adjacent all pixels point During the trip point of more than half, then by for the gray value of pixel retain, otherwise, by for the gray value of pixel set White level pixel is set to, and exports smoothed image corresponding to binary image；Medium filtering equipment, set with image balance processing Standby connection, for receiving smoothed image, the gray value of the pixel of smoothed image is analyzed to determine each noise point The distribution radius in cloth region, the maximum in the distribution radius based on each noise profile region determine to carry out the filter of medium filtering Ripple pixel block size, the filtered pixel block size of determination is used to carry out median filter process to smoothed image to obtain filtering figure Picture；Sub-screen analytical equipment, it is connected with medium filtering equipment to obtain filtering image, filtering image is various with prestoring The screen pattern of mobile terminal is matched to detect and be partitioned into each screen subgraph in filtering image, for each Screen subgraph, seat corresponding to the screen subgraph for determining to be directed to for its position in filtering image are numbered；Wherein, pin To screen subgraph corresponding to seat numbering be where holding the spectators of mobile terminal corresponding to the screen subgraph being directed to Number at projection room seat；Civil power access interface, it is connected with the line of projection room position, for receiving line input Alternating Current Power Supply signal；Current transformer and sample circuit, it is connected with the A phase lines in line, B phase lines and C phase lines, For being sampled respectively to the current signal in A phase lines, B phase lines and C phase lines；Voltage sample circuit, with city's electric wire A phase lines, B phase lines in road connect with C phase lines, for the voltage signal in A phase lines, B phase lines and C phase lines It is sampled respectively；Current signal conditioning circuit, it is connected with current transformer and sample circuit, for carrying out letter to sampling current Number conditioning；Voltage signal conditioning circuit, it is connected with voltage sample circuit, for carrying out signal condition to sampling voltage；AD73360 Chip, it is connected respectively with current signal conditioning circuit and voltage signal conditioning circuit, after the sampling current after conditioning and conditioning Sampling voltage perform 16 A/D conversion respectively, obtain digital current signal and digital voltage signal, also believed based on digital current Number 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 is set It is standby, it is connected with the A phase lines in line, B phase lines and C phase lines, for performing conversion of the alternating current to direct current, is Each electrical equipment provides supply of electric power；Wherein, Freescale IMX6 processing equipments are also connected with AD73360 chips, for base Electrical management control is realized in the virtual value of digital current signal and the virtual value of digital voltage signal, wherein, work as digital current When the product of the virtual value of signal and the virtual value of digital voltage signal is less than predetermined power threshold value, into energy-saving mode, work as number When the product of the virtual value of word current signal and the virtual value of digital voltage signal is more than or equal to predetermined power threshold value, economize on electricity is exited Pattern；Wherein, the quantity of the pixel value pixel that the match is successful and the relation of content matching percentage are non-linear dependences.

More specifically, in the current sample processing platform, in addition to：Alternating Current Power Supply conversion equipment is arranged on projection room Background control room in.

More specifically, in the current sample processing platform, in addition to：Current signal conditioning circuit is arranged on projection room Background control room in.

More specifically, in the current sample processing platform, in addition to：Voltage signal conditioning circuit is arranged on projection room Background control room in.

More specifically, in the current sample processing platform, in addition to：Current transformer and sample circuit, which are arranged on, to be put Reflect in the Background control room of room.

More specifically, in the current sample processing platform, in addition to：Gray processing processing equipment, medium filtering equipment, Sub-screen analytical equipment and picture smooth treatment integration of equipments are on one piece of surface-mounted integrated circuit.

Brief description of the drawings

Embodiment of the present invention is described below with reference to accompanying drawing, wherein：

Fig. 1 is the block diagram of the current sample processing platform according to embodiment of the present invention.

Reference：1 current transformer and sample circuit；2 civil power access interfaces；3 current signal conditioning circuits

Embodiment

The embodiment of the current sample processing platform of the present invention is described in detail below with reference to accompanying drawings.

Due to the continuous development of camcorder technology, high-resolution, the microcam of small volume are increasingly popularized, and spectators only need High-resolution image recording or image taking can be completed by carrying the various mobile terminals with camera, so, be carried out Piracy is taken on the sly very easy, and huge economic losses are caused to relevant industry.

Piracy, which is taken on the sly, to be typically occurred in cinema, theater, arenas, projection room or theatre, and operator is in order to avoid steathily Bat behavior it is prevailing, it will usually arrange special staff to be arranged in around auditorium, every fixed intervals arrange one, With the manner behavior of spectators near naked-eye observation, once the recording that finds to there is spectators' hand-held mobile terminal to carry out image or photo Shooting, is gone forward to prevent immediately or is alerted using hand-held infrared emission pen, so as to interrupt the behavior of taking on the sly of spectators.

However, there is the drawbacks of inherent in this artificial anti-mode taken on the sly：First, if auditorium area is larger, need Many staff are 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 efficiency retouched is low, and the mode of direct surveillance easily occurs to let off taking on the sly for some corner locations because of burnout Person；Finally, set the mode of staff to bring discomfort to the spectators of normal viewing performance near spectators, it is glad to have impact on them Appreciate the mood of 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 and prevents what is taken on the sly Operation cost, the anti-operating efficiency taken on the sly is improved, operator always searches for the anti-mode taken on the sly of electronics and carries out on-site supervision, electricity Anti- take on the sly of son has two kinds of developing direction, and a kind of made an issue of on the mobile terminal held in spectators, when mobile terminal is shot certainly Dynamic detection is taken on the sly behavior, but this mode may be because that the person of taking on the sly is avoided to the selection of mobile terminal, another kind be The scene of taking on the sly disposes electronic jamming device, and this mode can avoid evading for 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, infrared if the person of taking on the sly is moving terminal or video camera shooting Line will disturb the video camera imaging of the person of taking on the sly, the image or lower picture quality for causing the person of taking on the sly to obtain, can not commercially sell Sell and propagated on network, so as to effectively safeguard copyright interest.

But this mode needs to launch infrared ray always, and the transmitting of infrared ray is large-scale, it is necessary to from each Infrared ray is all launched in position, and cost is higher and poor feasibility.Therefore the anti-equipment of taking on the sly of the electronics at scene also needs to find others Break through direction.

In order to overcome above-mentioned deficiency, the present invention has built a kind of current sample processing platform, can be by audience The behavioral value of spectators and determined in seat by the parameter extraction to site environment in audience seat with the presence or absence of taking on the sly Person, and the position where the person of taking on the sly can be positioned in time, in order to take corresponding orientation warning measure, prompting is taken on the sly Person abandons the behavior of taking on the sly.

Fig. 1 is the block diagram of current sample processing platform according to embodiment of the present invention, the platform bag Include current transformer and sample circuit, civil power access interface and current signal conditioning circuit, civil power access interface and projection room position The line connection put, for receiving the Alternating Current Power Supply signal of line input, current transformer and sample circuit, with city A phase lines, B phase lines in electric line connect with C phase lines, for the electric current in A phase lines, B phase lines and C phase lines Signal is sampled respectively, current signal conditioning circuit, is connected with current transformer and sample circuit, for entering to sampling current Row signal condition.

Then, continue that the concrete structure of the current sample processing platform of the present invention is further detailed.

The platform includes：Projection room content acquisition equipment, projection room curtain opposite is arranged on, for gathering projection in real time Scene image on the curtain of room as real-time scene image to export.

The platform includes：Content analysis apparatus, it is arranged in the Background control room of projection room, is analyzed respectively with sub-screen Equipment connects with projection room content acquisition equipment, for receiving real-time scene image, is additionally operable to receive each screen subgraph Seat numbering corresponding with its, each screen subgraph and real-time scene image are subjected to content matching to determine content matching Percentage, when content matching percentage is more than or equal to preset percentage threshold value, seat numbering corresponding to screen subgraph is made Number and export for targeted seat；Wherein, each screen subgraph and real-time scene image are carried out content by Content analysis apparatus Match to determine that content matching percentage specifically includes：By each pixel in real-time scene image and each screen subgraph Each pixel carry out pixel value matching, the quantity of the pixel value pixel that the match is successful is more, content corresponding to screen subgraph Match-percentage is higher.

The platform includes：Freescale IMX6 processing equipments, are arranged in the Background control room of projection room, with content point Desorption device is connected, and the driving control signal of targeted seat numbering is included for being sent based on targeted seat numbering.

The platform includes：Orientation equipment, it is arranged in the Background control room of projection room, is set with Freescale IMX6 processing Standby connection, for being parsed to driving control signal to determine that targeted seat is numbered, based on targeted seat number to target Prompting mechanism and two-way speaker send alarm signal of taking pictures corresponding to seat numbering.

The platform includes：Prompting mechanism, one is set on each spectators seat, position is in spectators seat and corresponds to chair The rear of the back of the body, including spring, expansion controller and wooden protrusion member, wooden protrusion member are arranged on the front of spring, stretch Controller is connected with orientation equipment, for controlling the stretching, extension and contraction of spring；Wherein, expansion controller is receiving warning of taking pictures Spring is stretched during signal to realize that wooden protrusion member touches to the point of spectators' back.

The platform includes：Two-way speaker, one is set on each spectators seat, position is in spectators seat pair Answer in handrail, be connected with orientation equipment, for playing voice text corresponding with no photographing when receiving and taking pictures alarm signal Part.

The platform includes：CMOS sensing equipments, projection room roof middle position is arranged on, for based between preset time Sequential image acquisition is carried out with continuous auditorium image on output time every the auditorium to projection room curtain opposite, wherein in advance Between if time interval is selected from 0.5 second to 0.1 second.

The platform includes：Preliminary examination measurement equipment, it is connected with CMOS sensing equipments, for receiving current auditorium image with before One frame auditorium image, the average brightness value of current auditorium image is calculated as the first brightness value, calculates former frame auditorium The average brightness value of image 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 When, pre-warning signal of taking on the sly is sent, current auditorium image is sent to gray processing processing equipment, otherwise, sends normal viewing letter Number, stop current auditorium image being sent to gray processing processing equipment.

The platform includes：Gray processing processing equipment, be connected with preliminary examination measurement equipment, including channel parameters extraction unit, plus Weight storage unit and gray value computing unit, channel parameters extraction unit are used to receive current auditorium image, extract and work as R passages pixel value, G passages pixel value and the channel B pixel value of each pixel in preceding auditorium image, weighted value storage are single Member is used to prestore R channel weightings value, G channel weightings value and channel B weighted value, gray value computing unit respectively with passage Parameter extraction unit connects with weighted value memory cell, for each pixel in current auditorium image, by R passage pixels The product of value and R channel weighting values, G passages pixel value and the product and channel B pixel value and channel B of G channel weighting values add The gray value for the pixel that the product addition of weights is directed to obtaining, and based on the ash of each pixel in current auditorium image Angle value obtains gray level image corresponding to current auditorium image；Wherein, R channel weightings value value is that 0.298839, G passages add Weights value is 0.586811, and channel B weighted value value is 0.114350.

The platform includes：Histogram distribution detection device, it is connected with gray processing processing equipment, for receiving gray processing figure Picture, and grey level histogram processing is carried out to gray level image to obtain corresponding histogram image, presented in histogram image double When peak is distributed, global threshold selection signal is sent, otherwise, sends non-global threshold selection signal.

The platform includes：Threshold value selects equipment, is connected with histogram distribution detection device, for receiving global threshold When being worth selection signal, exported global threshold 128 as threshold data, when receiving non-global threshold selection signal, by phase Adjacent pixel gray level difference threshold value 40 exports as threshold data.

The platform includes：Binary conversion treatment equipment, equipment and histogram distribution detection device is selected to connect with threshold value respectively Connect, for when receiving global threshold selection signal, for each pixel in gray level image, when gray value is more than During equal to threshold data, by for pixel be arranged to white level pixel, when gray value is less than threshold data, will be directed to Pixel be arranged to black level pixel, and binary image corresponding to output gray level image；Binary conversion treatment equipment is also For when receiving non-global threshold selection signal, for each pixel in gray level image, calculating vertical direction Upwards apart from its 3 pixels pixel gray value 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 made as left grey scale pixel value, gray value of the calculated level direction to the right apart from the pixel of its 3 pixels For right grey scale pixel value, when upper grey scale pixel value and the absolute value of the difference of lower grey scale pixel value are less than or equal to threshold data and left picture When the absolute value of the difference of plain gray value and right grey scale pixel value is less than or equal to threshold data, by for pixel be arranged to white appliances Flat pixel, when upper grey scale pixel value and the absolute value of the difference of lower grey scale pixel value be 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 arranged to black level pixel, it is and defeated Go out binary image corresponding to gray level image.

The platform includes：Picture smooth treatment equipment, it is connected with binary conversion treatment equipment, for receiving binary picture Picture, for each pixel in binary image, when the trip point of more than half in adjacent all pixels point be present, Then by for the gray value of pixel retain, otherwise, by for the gray value of pixel be arranged to white level pixel, and Export smoothed image corresponding to binary image.

The platform includes：Medium filtering equipment, it is connected with image balance processing equipment, it is right for receiving smoothed image The gray value of the pixel of smoothed image is analyzed to determine the distribution radius in each noise profile region, is made an uproar based on each Maximum in the distribution radius of sound distributed areas determines to carry out the filtered pixel block size of medium filtering, using the filtering of determination Pixel block size carries out median filter process to obtain filtering image to smoothed image.

The platform includes：Sub-screen analytical equipment, it is connected with medium filtering equipment to obtain filtering image, filtering is schemed As being matched with the screen pattern of the various mobile terminals prestored to detect and be partitioned into each screen in filtering image Curtain subgraph, for each screen subgraph, the screen subgraph pair for determining to be directed to for its position in filtering image The seat numbering answered；Wherein, for screen subgraph corresponding to seat numbering be to hold corresponding to the screen subgraph being directed to Projection room seat numbering where the spectators of mobile terminal.

The platform includes：Civil power access interface, it is connected with the line of projection room position, for receiving line The Alternating Current Power Supply signal of input；A phase lines, B phase lines and C phase lines in current transformer and sample circuit, with line Road connects, for being sampled respectively to the current signal in A phase lines, B phase lines and C phase lines；Voltage sample circuit, with A phase lines, B phase lines in line connect with C phase lines, for the electricity in A phase lines, B phase lines and C phase lines Pressure signal is sampled respectively；Current signal conditioning circuit, it is connected with current transformer and sample circuit, for sampling current Carry out signal condition；Voltage signal conditioning circuit, it is connected with voltage sample circuit, for carrying out signal condition to sampling voltage.

The platform includes：AD73360 chips, connect respectively with current signal conditioning circuit and voltage signal conditioning circuit Connect, perform 16 A/D conversion respectively to the sampling current after conditioning and the sampling voltage after conditioning, obtain digital current signal and Digital voltage signal, the virtual value and numeral electricity of digital current signal are also determined based on digital current signal and digital voltage signal Press the virtual value of signal.

The platform includes：Alternating Current Power Supply conversion equipment, with the A phase lines in line, B phase lines and C phase lines Connection, for performing conversion of the alternating current to direct current, supply of electric power is provided for each electrical equipment.

Wherein, Freescale IMX6 processing equipments are also connected with AD73360 chips, for having based on digital current signal The virtual value of valid value and digital voltage signal realizes electrical management control, wherein, when the virtual value and numeral of digital current signal When the product of the virtual value of voltage signal is less than predetermined power threshold value, into energy-saving mode, when the virtual value of digital current signal When being more than or equal to predetermined power threshold value with the product of the virtual value of digital voltage signal, energy-saving mode is exited.

Wherein, the quantity of the pixel value pixel that the match is successful and the relation of content matching percentage are non-linear dependences.

Alternatively, in the platform：Alternating Current Power Supply conversion equipment is arranged in the Background control room of projection room；Electric current is believed Number modulate circuit is arranged in the Background control room of projection room；Voltage signal conditioning circuit is arranged on the Background control room of projection room It is interior；Current transformer and sample circuit are arranged in the Background control room of projection room；Gray processing processing equipment, medium filtering are set Standby, sub-screen analytical equipment and picture smooth treatment integration of equipments are on one piece of surface-mounted integrated circuit.

In addition, CMOS (Complementary Metal-Oxide-Semiconductor), Chinese scientific name is complementary metal Oxide semiconductor, he is originally a kind of important chip in computer system, saves the most basic data of System guides.CMOS Manufacturing technology and general computer chip do not have a difference, mainly partly led using what silicon and germanium both elements were made Body, it is set to co-exist the semiconductor with N (band-electricity) and P (band+electricity) level, electricity caused by the two complementary effects on CMOS Stream, which can be processed, chip record and is interpreted to image.Found that CMOS can also be as the figure in digital photography by processing later As sensor.

For the portable use independently of power network, the CMOS technology famous with low power consumption characteristic is bright with one Aobvious advantage：Cmos image sensor designs for 5V and 3.3V supply voltages.And CCD chip then needs about 12V Supply voltage, therefore have to use an electric pressure converter, so as to cause power consumption to increase.In terms of total power consumption, control Another benefit will be brought by being integrated into systemic-function in cmos sensor：He eliminates all outer with other semiconductor elements Portion's connecting line.Nowadays the driver of its high power consumption has been abandoned, because the consumed energy that communicated in chip internal It is more much lower than the outside implementation by PCB or substrate.

Can not be the effective electricity of offer of taking on the sly of performance for prior art using the current sample processing platform of the present invention 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, also by analyzing the environment at performance scene, on the basis of above-mentioned analysis, Behavior to pirates shoot person in auditorium carries out accurately detection and position identification, finally takes aposematic mechanism to carry out electronics to the person of taking on the sly Remind, so as to while avoiding disturbing other spectators to watch, effectively reduce the generation for behavior of taking on the sly.

It is understood that although the present invention is disclosed as above with preferred embodiment, but above-described embodiment and it is not used to Limit the present invention.For any those skilled in the art, without departing from the scope of the technical proposal of the invention, Many possible changes and modifications are all made to technical solution of the present invention using the technology contents of the disclosure above, or are revised as With the equivalent embodiment of change.Therefore, every content without departing from technical solution of the present invention, the technical spirit pair according to the present invention Any simple modifications, equivalents, and modifications made for any of the above embodiments, still fall within the scope of technical solution of the present invention protection It is interior.

Claims (2)

1. a kind of current sample processing platform, the platform includes current transformer and sample circuit, civil power access interface and electricity Signal conditioning circuit is flowed, civil power access interface is connected with the line of projection room position, for receiving line input Alternating Current Power Supply signal, current transformer and sample circuit, it is connected with the A phase lines in line, B phase lines and C phase lines, For being sampled respectively to the current signal in A phase lines, B phase lines and C phase lines, current signal conditioning circuit, with electricity Current transformer and sample circuit connection, for carrying out signal condition to sampling current.

2. current sample processing platform as claimed in claim 1, it is characterised in that the platform includes：

Projection room content acquisition equipment, projection room curtain opposite is arranged on, for gathering the scene graph on projection room curtain in real time As to be exported as real-time scene image；

Content analysis apparatus, be arranged in the Background control room of projection room, respectively with sub-screen analytical equipment and projection room content Collecting device connects, and for receiving real-time scene image, is additionally operable to receive each screen subgraph seat volume corresponding with its Number, each screen subgraph and real-time scene image are subjected to content matching to determine content matching percentage, when content When component percentage is more than or equal to preset percentage threshold value, numbered using seat numbering corresponding to screen subgraph as targeted seat defeated Go out；Wherein, each screen subgraph and real-time scene image are carried out content matching to determine content by Content analysis apparatus Component percentage specifically includes：Each pixel in real-time scene image and each pixel of each screen subgraph are subjected to picture Element value matching, the quantity of the pixel value pixel that the match is successful is more, and content matching percentage is higher corresponding to screen subgraph；

Freescale IMX6 processing equipments, are arranged in the Background control room of projection room, are connected with Content analysis apparatus, for base Being sent in targeted seat numbering includes the driving control signal of targeted seat numbering；

Orientation equipment, it is arranged in the Background control room of projection room, is connected with Freescale IMX6 processing equipments, for driving Control signal is parsed to determine that targeted seat is numbered, and is numbered to corresponding with targeted seat numbering and prompted based on targeted seat Agency channel loudspeaker sends alarm signal of taking pictures；

Prompting mechanism, one is set on each spectators seat, position is in the rear that spectators seat corresponds to the chair back, including bullet Spring, expansion controller and wooden protrusion member, wooden protrusion member are arranged on the front of spring, expansion controller and orientation equipment Connection, for controlling the stretching, extension and contraction of spring；Wherein, expansion controller receive take pictures alarm signal when stretch spring with Realize that wooden protrusion member touches to the point of spectators' back；

Two-way speaker, one is set on each spectators seat, position is in spectators seat and corresponded in handrail, is set with orientation Standby connection, for playing voice document corresponding with no photographing when receiving and taking pictures alarm signal；

CMOS sensing equipments, be arranged on projection room roof middle position, for based on prefixed time interval to projection room curtain pair The auditorium in face is carried out sequential image acquisition and is selected from continuous auditorium image, wherein prefixed time interval on output time Between 0.5 second to 0.1 second；

Preliminary examination measurement equipment, it is connected with CMOS sensing equipments, for receiving current auditorium image and former frame auditorium image, meter The average brightness value of current auditorium image is calculated as the first brightness value, the average brightness value for calculating former frame auditorium image is made For 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 of taking on the sly and believe Number, current auditorium image is sent to gray processing processing equipment, otherwise, normal viewing signal is sent, stops current spectators Seat image is sent to gray processing processing equipment；

Gray processing processing equipment, it is connected with preliminary examination measurement equipment, including channel parameters extraction unit, weighted value memory cell and gray scale It is worth computing unit, channel parameters extraction unit is used to receive current auditorium image, extracted each in current auditorium image R passages pixel value, G passages pixel value and the channel B pixel value of individual pixel, weighted value memory cell are used to prestore R Channel weighting value, G channel weightings value and channel B weighted value, gray value computing unit respectively with channel parameters extraction unit and add Weight storage unit connects, for each pixel in current auditorium image, by R passages pixel value and R channel weighting values Product, the product of G passages pixel value and G channel weighting values and channel B pixel value and channel B weighted value product addition with The gray value for the pixel being directed to is obtained, and the gray value based on each pixel in current auditorium image obtains current spectators Gray level image corresponding to seat image；Wherein, R channel weightings value value is that 0.298839, G channel weighting value values are 0.586811, channel B weighted value value is 0.114350；

Histogram distribution detection device, it is connected with gray processing processing equipment, for receiving gray level image, and to gray level image Grey level histogram processing is carried out to obtain corresponding histogram image, when bimodal distribution is presented in histogram image, sends the overall situation Threshold value selection signal, otherwise, send non-global threshold selection signal；

Threshold value selects equipment, is connected with histogram distribution detection device, complete for when receiving global threshold selection signal, inciting somebody to action Office's threshold value 128 exports as threshold data, when receiving non-global threshold selection signal, by neighbor pixel gray difference threshold 40 export as threshold data；

Binary conversion treatment equipment, equipment and histogram distribution detection device is selected to be connected with threshold value respectively, for receiving entirely ,, will when gray value is more than or equal to threshold data for each pixel in gray level image during office's threshold value selection signal For pixel be arranged to white level pixel, when gray value is less than threshold data, by for pixel be arranged to black Level pixel point, and binary image corresponding to output gray level image；Binary conversion treatment equipment be additionally operable to receive it is non-complete During office's threshold value selection signal, for each pixel in gray level image, vertical direction is calculated upwards apart from its 3 pixels The gray value of the pixel of point calculates vertical direction downwards apart from the pixel of its 3 pixels as upper grey scale pixel value Gray value is used as left apart from the gray value of the pixel of its 3 pixels to the left as lower grey scale pixel value, calculated level direction Grey scale pixel value, calculated level direction to the right apart from its 3 pixels pixel gray value 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 When the absolute value of the difference of gray value is less than or equal to threshold data, by for pixel be arranged to white level pixel, when upper picture The absolute value of the difference of plain gray value and lower grey scale pixel value be more than threshold data or left grey scale pixel value and right grey scale pixel value it The absolute value of difference is when being more than threshold data, by for pixel be arranged to black level pixel, and output gray level image pair The binary image answered；

Picture smooth treatment equipment, it is connected with binary conversion treatment equipment, for receiving binary image, in binary image Each pixel, when more than half trip point in adjacent all pixels point being present, then by for pixel Gray value retains, otherwise, by for the gray value of pixel be arranged to white level pixel, and it is corresponding to export binary image Smoothed image；

Medium filtering equipment, it is connected with image balance processing equipment, for receiving smoothed image, to the pixel of smoothed image Gray value is analyzed to determine the distribution radius in each noise profile region, the distribution based on each noise profile region half Maximum in footpath determines to carry out the filtered pixel block size of medium filtering, using the filtered pixel block size of determination to smooth figure Picture carries out median filter process to obtain filtering image；

Sub-screen analytical equipment, it is connected with medium filtering equipment to obtain filtering image, filtering image is each with prestoring The screen pattern of kind mobile terminal is matched to detect and be partitioned into each screen subgraph in filtering image, for each Individual screen subgraph, seat corresponding to the screen subgraph for determining to be directed to for its position in filtering image are numbered；Wherein, For screen subgraph corresponding to seat numbering be where holding the spectators of mobile terminal corresponding to the screen subgraph being directed to Projection room seat numbering；

Civil power access interface, it is connected with the line of projection room position, for receiving the Alternating Current Power Supply letter of line input Number；

Current transformer and sample circuit, it is connected with the A phase lines in line, B phase lines and C phase lines, for A phases Current signal in circuit, B phase lines and C phase lines is sampled respectively；

Voltage sample circuit, it is connected with the A phase lines in line, B phase lines and C phase lines, for A phase lines, B phases Voltage signal in circuit and C phase lines is sampled respectively；

Current signal conditioning circuit, it is connected with current transformer and sample circuit, for carrying out signal condition to sampling current；

Voltage signal conditioning circuit, it is connected with voltage sample circuit, for carrying out signal condition to sampling voltage；

AD73360 chips, are 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, obtains digital current signal and digital voltage signal, is also based on 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, it is connected with the A phase lines in line, B phase lines and C phase lines, for performing exchange Electricity arrives the conversion of direct current, and supply of electric power is provided for each electrical equipment；

Wherein, Freescale IMX6 processing equipments are also connected with AD73360 chips, for the virtual value based on digital current signal Electrical management control is realized with the virtual value of digital voltage signal, wherein, when the virtual value and digital voltage of digital current signal When the product of the virtual value of signal is less than predetermined power threshold value, into energy-saving mode, when the virtual value sum of digital current signal When the product of the virtual value of word voltage signal is more than or equal to predetermined power threshold value, energy-saving mode is exited；

Wherein, the quantity of the pixel value pixel that the match is successful and the relation of content matching percentage are non-linear dependences；

Alternating Current Power Supply conversion equipment is arranged in the Background control room of projection room；

Current signal conditioning circuit is arranged in the Background control room of projection room.