CN102610015B - Multimedia visual entrance guard system - Google Patents
Multimedia visual entrance guard system Download PDFInfo
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- CN102610015B CN102610015B CN201210078487.6A CN201210078487A CN102610015B CN 102610015 B CN102610015 B CN 102610015B CN 201210078487 A CN201210078487 A CN 201210078487A CN 102610015 B CN102610015 B CN 102610015B
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Abstract
The invention relates to a multimedia visual entrance guard system, which comprises an audio collecting unit, a video collecting unit, a digital signal processor (DSP) unit, an advanced reduced instruction-set computer machine (ARM) controller, a video synthesis unit, a display unit, a human face detecting unit, a gain regulating unit, a storage unit, a keyboard input unit, a control door lock unit and a loudspeaker, wherein the audio collecting unit, the video collecting unit and the DSP unit are positioned at an outdoor part, the ARM controller, the video synthesis unit, the display unit, the human face detecting unit, the gain regulating unit, the storage unit, the keyboard input unit, the control door lock unit and the loudspeaker are positioned at an indoor part, and the indoor part and the outdoor part are connected through an Ethernet bus controlled by an Ethernet controller. The audio signal gain is dynamically regulated through judging the distances and the positions of visitors, in addition, multimedia files are played through an audio and video device of the system when no visitors exist, the user experience is improved, and meanwhile, the equipment utilization rate is also improved.
Description
Technical field
The present invention relates to a kind of multimedia visual entrance guard system, be applicable to the entrance of supervision and/or control Lou Menhuo community door in residential building, office building, Private Lounge.
Background technology
Visual gate inhibition, another name is video doorbell, and English name is Video door phone or Video doorbell.Introduce from developed country in the nineties, obtain development at a high speed at China.From late nineteen nineties so far, be mainly used in commercial residential building, scale develops rapidly, generally enters urban cells semi-high-rise housing.During use, resident family hears the tinkle of bells, as answering videophone, accept the calling of visitor by doorway main frame downstairs, engage in the dialogue, the visual extension set simultaneously in man of resident family is by main frame camera receiver, video image downstairs, resident family's monitoring image observed on extension set display screen confirms the identity of visitor, whether final decision presses the unlock button of indoor unit, opens the electric control door lock connecting doorway main frame, allows visiting guest to open the door and enters.
Visual gate inhibition is the audio-video channel of communication of residential quarters resident family and visitor, and it is the security perimeter of the first illegal invasion of residential quarters resident family.By the setting of this cover system, resident family can be conversed by the intercommunication and visitor that are located at unit building doorway at home, and by the image on extension set screen, identification visitor.After visitor is identified, resident family owner utilizes the door lock operating key on extension set, opens the electric control door lock on the main frame of unit building doorway, allows visitor to enter; Otherwise the personnel of all non-unit buildings and strange visitor, all can not enter.
Along with the widespread use of visual gate inhibition, its function is also more and more comprehensive, such as can also connect emergency alarm button, pyroscan, Men Ci, window magnetic, smoke alarm, can the panalarm such as burner detector, the information such as illegal invasion, fire alarm, gas leakage, flash appeal are notified administrative center in time, for resident family provides convenience and the life of safety, reduce the unwilling worry be disturbed of resident family.
But, due to the product feature that visual gate control system is special, such as service time is short, frequency of utilization is low, make visual gate control system when unmanned coming to visit, do not give full play to its effect, this is undoubtedly a huge wasting of resources, also have impact on the purchase intention of user simultaneously, therefore a kind of multi-functional visual gate control system is provided, an important research direction of life electronic technology field will be become.In addition, existing visual gate inhibition at least also also exists these problems following: 1) when there being visitor to stand in slightly far away apart from visual intercommunication distance, the sound of the visitor that resident family's extension set is play is too little, be difficult to not hear, and when visitor is apart from visual intercommunication close together, the sound play is too large again, easily produces interference to resident family; 2) intercommunication being located at unit building doorway is in the environment of public opening, is easily subject to the interference of neighbourhood noise, makes resident family be difficult to not hear the sound of visitor equally; 3) for often coming to visit or a period of time contact ratio guest more frequently, all need the confirmation of resident family at every turn, just can enter, so frequent repetitive operation also brings some unnecessary troubles to resident family.
Summary of the invention
Technical matters to be solved by this invention overcomes the deficiencies in the prior art, provides multi-functional, the multiduty visual gate control system of more perfect a, hommization.
This visual gate control system comprises:
Be positioned at the audio collection unit of outdoor section, video acquisition unit, digital signal processor DSP unit, and be positioned at the ARM controller of indoor section, Video Composition unit, display unit, Face datection unit, gain adjustment unit, storage unit, key input unit, control gate lock unit and loudspeaker, industry ethernet wherein by being controlled by ethernet controller between indoor section and outdoor section connects, and it is characterized in that:
A. audio collection unit, for gathering the acoustic information of visitor, and is transferred to DSP unit;
B. video acquisition unit, for gathering the image information of visitor, and is transferred to DSP unit;
C.DSP unit, for the acoustic information that audio reception collecting unit sends, and carries out high-pass filtering process to acoustic information, eliminates the low frequency environments noise signal of below 300Hz, carries out Simulation scale-up process and analog/digital conversion processing afterwards; In addition, also for the picture signal that receiver, video collecting unit sends, and coded treatment is carried out to picture signal; Audio frequency after process, vision signal are sent to ARM controller by industry ethernet;
D.ARM controller, for being received the Voice & Video data from DSP unit by ethernet controller, is carried out decoding process to video data afterwards, and decoded data is sent to Video Composition unit, digital-to-analog conversion processing is carried out to sound signal, and the signal after transforming is sent to gain adjustment unit, decoded video data is sent to Face datection unit, receive visitor's distance that face detecting unit returns, positional information and the face characteristic information identified, and carry out table lookup operation according to far and near and positional information, find out applicable yield value, and the gain-adjusted instruction carrying this yield value is sent to gain adjustment unit, according to the face characteristic information identified, search in the memory unit, judge whether the identity of visitor have passed through qualification, if found face characteristic information consistent with it, then send to control gate lock unit and open steering order, when user by key input unit have chosen need carry out the multi-medium data play time, ARM controller reads and play multimedia data from storage unit, if meanwhile there is visitor to trigger this gate control system, then suspend play multimedia data, under current state being switched to video intercom state, after video intercom state terminates, continue play multimedia data,
E. Face datection unit, receive the decoded picture signal that ARM controller sends, the human face region in recognition image signal is carried out according to the feature on face, and by analyzing the ratio in image shared by the human face region that detects, and there is position in the picture in human face region, judge the distance of visitor's distance video acquisition unit, and the position of relative video collecting unit, and the distance of acquisition, positional information and the face characteristic information that identifies are sent to ARM controller;
F. gain adjustment unit, receives the gain-adjusted instruction from ARM controller and sound signal, and the value indicated by gain-adjusted instruction carries out Gain tuning to sound signal, and the sound signal after adjustment is exported to loudspeaker;
G. Video Composition unit, receives the vision signal from ARM controller, send display unit to show after synthesis;
H. storage unit, preserves audio/video multimedia data, digital photograph and the face characteristic information through certification for storing;
I. display unit, for display video information;
J. doorlock control unit, for receiving the unlatching steering order from ARM controller, opens exterior door simultaneously;
Wherein said dsp processor can adopt TMS320DM6446;
Wherein said storage unit can adopt Nand type flash memory, SDRAM;
Wherein said loudspeaker comprises: magnetic circuit assembly, frame and aluminum frame, and frame is fixedly connected with aluminum frame; Magnetic circuit assembly comprises magnet steel, ironware and clamping plate, and magnet steel and clamping plate are located in ironware, and ironware is connected with magnet steel, and magnet steel is connected with clamping plate; Magnetic circuit assembly is located in oscillating plate, and clamping plate are connected with support.
After have employed such scheme, slightly far away apart from visual intercommunication distance when there being visitor to stand in, or when deviate from the forward position of visual intercommunication, by the identification to face information, the sound that can adjust the visitor that resident family's extension set is play dynamically is too little, make when visitor is apart from visual intercommunication close together, reduce the gain to sound, otherwise, when visitor is distant apart from visual intercommunication, increase the gain to sound, this also increases the Humanization Level of Municipal of visual talk back entrance guard; In addition, by the filtering to low frequency environments noise, resident family can be allowed clearly to hear the sound of visitor; Meanwhile, by setting up the information bank of face characteristic, for the visitor that have passed through authentication processing, do not need the confirmation through resident family, system energy opening chamber's external door automatically, avoids repetitive operation frequently and brings some unnecessary troubles to resident family.
Accompanying drawing explanation
Fig. 1 is a kind of multimedia visual entrance guard system structured flowchart of the present invention.
Fig. 2 is the planing surface schematic diagram of the loudspeaker used in the present invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail.
See Fig. 1, the present invention is a kind of multimedia visual entrance guard system, comprise: be positioned at the audio collection unit of outdoor section, video acquisition unit, digital signal processor DSP unit, and be positioned at the ARM controller of indoor section, Video Composition unit, display unit, Face datection unit, gain adjustment unit, storage unit, key input unit, control gate lock unit and loudspeaker, industry ethernet wherein by being controlled by ethernet controller between indoor section and outdoor section connects, and it is characterized in that:
A. audio collection unit, for gathering the acoustic information of visitor, and is transferred to DSP unit;
B. video acquisition unit, for gathering the image information of visitor, and is transferred to DSP unit;
C.DSP unit, for the acoustic information that audio reception collecting unit sends, and carries out high-pass filtering process to acoustic information, eliminates the low frequency environments noise signal of below 300Hz, carries out Simulation scale-up process and analog/digital conversion processing afterwards; In addition, also for the picture signal that receiver, video collecting unit sends, and coded treatment is carried out to picture signal; Audio frequency after process, vision signal are sent to ARM controller by industry ethernet;
D.ARM controller, for being received the Voice & Video data from DSP unit by ethernet controller, is carried out decoding process to video data afterwards, and decoded data is sent to Video Composition unit, digital-to-analog conversion processing is carried out to sound signal, and the signal after transforming is sent to gain adjustment unit, decoded video data is sent to Face datection unit, receive visitor's distance that face detecting unit returns, positional information and the face characteristic information identified, and carry out table lookup operation according to far and near and positional information, find out applicable yield value, and the gain-adjusted instruction carrying this yield value is sent to gain adjustment unit, according to the face characteristic information identified, search in the memory unit, judge whether the identity of visitor have passed through qualification, if found face characteristic information consistent with it, then send to control gate lock unit and open steering order, when user by key input unit have chosen need carry out the multi-medium data play time, ARM controller reads and play multimedia data from storage unit, if meanwhile there is visitor to trigger this gate control system, then suspend play multimedia data, under current state being switched to video intercom state, after video intercom state terminates, continue play multimedia data,
E. Face datection unit, receive the decoded picture signal that ARM controller sends, the human face region in recognition image signal is carried out according to the feature on face, and by analyzing the ratio in image shared by the human face region that detects, and there is position in the picture in human face region, judge the distance of visitor's distance video acquisition unit, and the position of relative video collecting unit, and the distance of acquisition, positional information and the face characteristic information that identifies are sent to ARM controller;
The principle of Face datection is: identify the feature on face Main Basis face, that is between Different Individual, there is larger difference for the then more stable tolerance of same person according to those.Because face change is complicated, therefore feature statement and feature extraction very difficult. facial image is being carried out to feature extraction and is generally needing to do geometrical normalization algorithm and gray scale normalization algorithm before classifying.Geometrical normalization algorithm refers to and face in image is transformed to same position and onesize according to Face detection result, gray scale normalization algorithm refers to and carries out the process such as illumination compensation to image, and illumination compensation can overcome the impact of illumination variation to a certain extent and improve discrimination;
The principle of facial Feature Localization is: face recognition technology is the advanced biological identification technology that a kind of facial characteristics according to people carries out identity verify automatically.System obtains the most important characteristics of portrait face by camera, as the protruding part of face, the distance in face profile such as brow ridge, eyes, nose and mouth, position, angle and size, then calculate their geometric feature, then compare with the portrait in template base and confirm.This technology and tradition use compared with I.D., password and even iris recognition, fingerprint, palm shape scan, the feature such as have that accuracy of identification is high, intuitive outstanding, basic data easily obtains and cost is low;
The principle of face alignment is: by collection in worksite comparison facial image, compares after automatically extracting face characteristic with face database, is used for carrying out personal identification or similar crowd searches.Analyze the result of face key feature point, if only utilize the peak valley of gray-scale map integral projection to judge the Y-coordinate position of unique point, for robust not diversified human face structure and picture quality, can there is comparatively big error in individual cases.Therefore the vision priori of human face structure is made full use of herein, to adding trained priori engineer's scale relation during key feature point, namely from forehead to eyes, eyes to nostril, nostril is to face and face to the Y-coordinate proportionate relationship of lower jaw, be platform with embedded system, draw face identification method;
F. gain adjustment unit, receives the gain-adjusted instruction from ARM controller and sound signal, and the value indicated by gain-adjusted instruction carries out Gain tuning to sound signal, and the sound signal after adjustment is exported to loudspeaker;
G. Video Composition unit, receives the vision signal from ARM controller, send display unit to show after synthesis;
H. storage unit, preserves audio/video multimedia data, digital photograph and the face characteristic information through certification for storing;
I. display unit, for display video information;
J. doorlock control unit, for receiving the unlatching steering order from ARM controller, opens exterior door simultaneously.
See Fig. 2, what the loudspeaker used in system adopted is the loudspeaker (CN200810120359.7) that a kind of volume is little, thickness is little, and comprise magnetic circuit assembly, frame 5 and support 6, frame 5 is screwed with support 6 and is connected; Magnetic circuit assembly comprises magnet steel 2, ironware 1 and clamping plate 3, and magnet steel 2 and clamping plate 3 are located in ironware 1, and ironware 1 is connected with magnet steel 2, clamping plate 3 successively; Described magnetic circuit assembly is located in oscillating plate 4, and described clamping plate 3 are fixedly connected with aluminum frame 6; There is a through hole at the ironware 1 be connected successively, magnet steel 2 and clamping plate 3 center, and screw 8 is through through hole, and fixed on the frame 6 by magnetic circuit assembly, described support is generally aluminum frame.
The advantage of this loudspeaker is adopted to be;
1, magnetic circuit assembly is located in frame, than being located at the height decreasing a magnetic circuit assembly outside frame, therefore little, the thinner thickness of volume.
2, the magnet steel adopted in loudspeaker is rubidium iron boron, has the advantages that volume is little, lightweight, magnetic is good, and reduces cost.
Obviously, those skilled in the art should be understood that, the function of above-mentioned ARM controller and DSP processing unit can concentrate on single device, or be distributed in system that multiple device forms, alternatively, they can realize with the executable program code of calculating, thus, they can be stored and be performed by calculation element in the storage device, or they are made into each integrated circuit modules respectively, or the multiple module makings in them are become single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. a multimedia visual entrance guard system, include: be positioned at the audio collection unit of outdoor section, video acquisition unit, digital signal processor DSP unit, and be positioned at the ARM controller of indoor section, Video Composition unit, display unit, Face datection unit, gain adjustment unit, storage unit, key input unit, control gate lock unit and loudspeaker, industry ethernet wherein by being controlled by ethernet controller between indoor section and outdoor section connects, and it is characterized in that:
A. audio collection unit, for gathering the acoustic information of visitor, and is transferred to digital signal processor DSP unit;
B. video acquisition unit, for gathering the image information of visitor, and is transferred to digital signal processor DSP unit;
C. digital signal processor DSP unit, for the voice signal that audio reception collecting unit sends, and high-pass filtering process is carried out to voice signal, eliminate the low frequency environments noise signal of below 300Hz, carry out Simulation scale-up process and analog/digital conversion processing afterwards; In addition, also for the picture signal that receiver, video collecting unit sends, and coded treatment is carried out to picture signal; Audio frequency after process, vision signal are sent to ARM controller by industry ethernet;
D.ARM controller, for being received audio frequency, the vision signal from digital signal processor DSP unit by ethernet controller, is carried out decoding process to video data afterwards, and decoded data is sent to Video Composition unit, digital-to-analog conversion processing is carried out to sound signal, and the signal after transforming is sent to gain adjustment unit, decoded video data is sent to Face datection unit, receive visitor's distance that face detecting unit returns, positional information and the face characteristic information identified, and carry out table lookup operation according to far and near and positional information, find out applicable yield value, and the gain-adjusted instruction carrying this yield value is sent to gain adjustment unit, according to the face characteristic information identified, search in the memory unit, judge whether the identity of visitor have passed through certification, if found face characteristic information consistent with it, then send to control gate lock unit and open steering order, when user by key input unit have chosen need carry out the audio/video multimedia data play time, ARM controller reads and playing audio-video multi-medium data from storage unit, if meanwhile there is visitor to trigger this gate control system, then suspend playing audio-video multi-medium data, under current state being switched to video intercom state, after video intercom state terminates, continue playing audio-video multi-medium data,
E. Face datection unit, receive the decoded picture signal that ARM controller sends, the human face region in recognition image signal is carried out according to the feature on face, and by analyzing the ratio in image shared by the human face region that detects, and there is position in the picture in human face region, judge the distance of visitor's distance video acquisition unit, and the position of relative video collecting unit, and the distance of acquisition, positional information and the face characteristic information that identifies are sent to ARM controller;
F. gain adjustment unit, receives the gain-adjusted instruction from ARM controller and sound signal, and the yield value indicated by gain-adjusted instruction carries out Gain tuning to sound signal, and the sound signal after adjustment is exported to loudspeaker;
G. Video Composition unit, receives the vision signal from ARM controller, send display unit to show after synthesis;
H. storage unit, preserves audio/video multimedia data, digital photograph and the face characteristic information through certification for storing;
I. display unit, for display video information;
J. control gate lock unit, for receiving the unlatching steering order from ARM controller, opens exterior door simultaneously.
2., according to a kind of multimedia visual entrance guard system described in claim 1, wherein said digital signal processor DSP unit can adopt TMS320DM6446.
3., according to a kind of multimedia visual entrance guard system described in claim 1, wherein said storage unit can adopt Nand type flash memory or SDRAM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210078487.6A CN102610015B (en) | 2012-03-13 | 2012-03-13 | Multimedia visual entrance guard system |
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| CN201210078487.6A CN102610015B (en) | 2012-03-13 | 2012-03-13 | Multimedia visual entrance guard system |
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| CN102610015A CN102610015A (en) | 2012-07-25 |
| CN102610015B true CN102610015B (en) | 2015-05-06 |
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| CN201210078487.6A Expired - Fee Related CN102610015B (en) | 2012-03-13 | 2012-03-13 | Multimedia visual entrance guard system |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104318654B (en) * | 2014-10-31 | 2016-06-08 | 广东安居宝数码科技股份有限公司 | Building conversational system and method |
| CN104766436A (en) * | 2015-03-25 | 2015-07-08 | 四川金石科技有限公司 | Residential intelligent system with multiple alarming devices |
| CN107730673A (en) * | 2017-09-27 | 2018-02-23 | 芜湖凯尔电气科技有限公司 | Entrance guard device for Intelligent Recognition |
| CN108881840A (en) * | 2018-03-14 | 2018-11-23 | 深圳市大工创新技术有限公司 | Building conversational system and method with face identification functions |
| CN108877011A (en) * | 2018-07-06 | 2018-11-23 | 安徽超清科技股份有限公司 | A kind of access control system based on recognition of face |
| CN109063596A (en) * | 2018-07-13 | 2018-12-21 | 江苏慧学堂系统工程有限公司 | A kind of face identification system and mobile terminal and recognition of face auxiliary device |
| CN113034764B (en) * | 2019-12-24 | 2023-03-03 | 深圳云天励飞技术有限公司 | Access control method, device, equipment and access control system |
| CN112233302A (en) * | 2020-10-14 | 2021-01-15 | 珠海太川云社区技术股份有限公司 | Temperature measurement access control for wrist temperature measurement and temperature measurement method thereof |
| CN114697611B (en) * | 2020-12-31 | 2023-07-14 | Oppo广东移动通信有限公司 | Visiting intercom control method, intercom control device, system, electronic equipment and storage medium |
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| US20070252001A1 (en) * | 2006-04-25 | 2007-11-01 | Kail Kevin J | Access control system with RFID and biometric facial recognition |
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| CN2507210Y (en) * | 2001-08-17 | 2002-08-21 | 深圳市松本先天下科技发展有限公司 | Visible intercom and information publishing device used in storeyed building |
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| CN101567795A (en) * | 2009-01-14 | 2009-10-28 | 闫军因 | Intelligent community management system |
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