WO2013155429A1 - Procédés et systèmes destinés à un système de surveillance de sécurité doté d'un dispositif d'imagerie - Google Patents

Procédés et systèmes destinés à un système de surveillance de sécurité doté d'un dispositif d'imagerie Download PDF

Info

Publication number
WO2013155429A1
WO2013155429A1 PCT/US2013/036395 US2013036395W WO2013155429A1 WO 2013155429 A1 WO2013155429 A1 WO 2013155429A1 US 2013036395 W US2013036395 W US 2013036395W WO 2013155429 A1 WO2013155429 A1 WO 2013155429A1
Authority
WO
WIPO (PCT)
Prior art keywords
image data
imaging device
unprocessed
digital image
imaging sensor
Prior art date
Application number
PCT/US2013/036395
Other languages
English (en)
Inventor
Zubin Varghese
Sushanth KONDI
Original Assignee
Schlage Lock Company, Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schlage Lock Company, Llc filed Critical Schlage Lock Company, Llc
Publication of WO2013155429A1 publication Critical patent/WO2013155429A1/fr

Links

Classifications

    • 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
    • H04N7/183—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source
    • H04N7/186—Video door telephones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/66—Remote control of cameras or camera parts, e.g. by remote control devices
    • H04N23/661—Transmitting camera control signals through networks, e.g. control via the Internet

Definitions

  • the embodiments disclosed herein relate generally to a security surveillance system. More particularly, the embodiments relate to a security surveillance system with an imaging device. BACKGROUND
  • Conventional image based security surveillance systems are configured to capture images or video, process this information and send the images or video via a wired or wireless connection to a central location for display, storage and/or analysis.
  • the embodiments described herein are directed to systems and methods of a security surveillance system that includes an imaging device.
  • the embodiments described herein are directed to a security surveillance system in which the imaging device sends unprocessed digital image data that has not undergone image processing to a control processor unit (also known as a "central processor unit") that reconstructs an image from the unprocessed digital image data.
  • a control processor unit also known as a "central processor unit”
  • a security surveillance system configured to generate unprocessed digital image data and a control processor unit.
  • the imaging device includes a lens, an imaging sensor that generates unprocessed analog image data, an A/D (analog to digital) converter configured to digitize the unprocessed analog image data into unprocessed digital image data, and a communication interface configured to send unprocessed digital image data.
  • the control processor unit is configured to receive the unprocessed digital image data from the communication interface and is configured to reconstruct an image from the unprocessed digital image data using an image reconstruction algorithm.
  • the unprocessed analog image data includes compressively-sensed data in the form of analog voltage values that are based on light sensed by the imaging sensor.
  • the sensitivity of the imaging device can be but is not limited to visible wavelengths.
  • the imaging device can be mounted on any suitable surface including, but not limited to, the front of a door lock of a security surveillance system.
  • light passes through a fixed lens (e.g., non-moving lens) of the imaging device and then passes through a mask-aperture or falls directly onto an imaging sensor.
  • a fixed lens e.g., non-moving lens
  • the imaging sensor by itself, or with the assistance of the mask-aperture, captures information in its field-of-view in the form of a contrast map. Contrast maps are recorded multiple times a second and a plurality of the contrast maps generated within a period of time are required to reconstruct the image.
  • the mask- aperture may be a physical masking device or can use an electrical or magnetic masking method to 'blind' some areas of the imaging sensor.
  • compressive sensing is used to generate a sparse data set, and this data set is transmitted to a control processor unit (e.g. a backend controller) via a wired or wireless connection.
  • the control processor unit can include a microcontroller and/ or a processor that uses image reconstruction algorithms to reconstruct the image into a format that can be viewed by the user.
  • a random pattern used in creating a contrast map is also required to be known to the control processor unit.
  • the system can have a high resistance to 'sniffing' or tapping data from a potential hacker because multiple forms of information are required to be able to reconstruct the image.
  • a processed image is not sent to the control processor unit. Rather, a plurality of contrast maps are sent.
  • the information size can be very small and the information can be secure. This can make it very convenient for wireless transmission.
  • the imaging device that captures unprocessed digital image data can be relatively inexpensive and easy replacement in case of vandalism or manufacture defects can be achieved.
  • FIG. 1 illustrates a block diagram of a security surveillance system according to one embodiment.
  • FIG. 2A illustrates a cross-sectional side view of a door lock unit according to one embodiment.
  • FIG. 2B illustrates a front perspective view of the door lock unit shown in Fig.
  • FIG.3 illustrates a block diagram of an imaging device for a security surveillance system according to one embodiment.
  • FIG. 4 illustrates a flow chart of a process for displaying/storing an image captured by an imaging device of a security surveillance system according to one embodiment.
  • FIG. 5 illustrates a coded mask aperture according to one embodiment
  • the embodiments described herein are directed to systems and methods of a security surveillance system that includes an imaging device.
  • the embodiments described herein are directed to a security surveillance system in which the imaging device sends unprocessed digital image data that has not undergone image processing to a control processor unit that reconstructs an image from the unprocessed digital image data.
  • Processed image data can typically be 'heavy' - a lot of data is sent over limited bandwidth, usually in the order of MBits (megabytes)/ sec.
  • cameras are typically expensive devices, especially those containing a focusing lens, an imaging sensor, a digital micromirror device (DMD) and a processing chip for converting unprocessed digital image data obtained by imaging sensor into useful information.
  • DMD digital micromirror device
  • these types of cameras require a large amount of power to obtain a reconstructed image, and a large amount of power to wirelessly transmit the reconstructed image to a control processor unit for storage or display.
  • the surveillance system requires less power, can be manufactured more cheaply and can be smaller in size without the need of a control processor unit.
  • the battery used for powering the imaging device can have a longer lifespan and the imaging device does not need to be powered by an external source, such as a mains power source.
  • the imaging device described herein can be relatively inexpensive compared to conventional cameras and can be easily replaced in case of vandalism, manufacturing defects, etc.
  • the unprocessed digital image data can be significantly smaller (in the order of kilobytes) than processed image data (in the order of megabytes).
  • a low-cost imaging device can be mounted within a door lock for surveillance within a building.
  • Door locks are typically ubiquitous in a building, and embedding an inexpensive imaging device within the lock can reduce installation cost and time.
  • Fig. 1 illustrates a block diagram of a security surveillance system 100 according to one embodiment.
  • the system 100 includes a door lock unit 105 that has an imaging device 110.
  • the door lock unit 105 is provided in a surveillance area 115 where security surveillance is to be provided.
  • the imaging device 110 is configured to communicate with a separate control processor unit (or central processor unit) 120.
  • the imaging device 110 can communicate with the control processor unit 120 via a wired or wireless connection.
  • the control processor unit 120 can include a microcontroller (not shown) and/or a processor (not shown) that uses image reconstruction algorithms to reconstruct an image from unprocessed digital image data received from the imaging device 110 into a format that can be viewed by the user.
  • the control processor unit 120 can be, for example, a back-end security console, digital video recorder (DVR), a handheld device (e.g., a smart phone, tablet pc, laptop, personal desktop computer etc.), etc.
  • DVR digital video recorder
  • the imaging device 110 is configured to capture an image in the surveillance area 115 and generate unprocessed digital image data.
  • the imaging device 110 is then configured to send the unprocessed digital image data to the control processor unit 120.
  • the control processor unit 120 is configured to process the unprocessed digital image data using an image reconstruction algorithm to reconstruct an image that can be displayed or stored, as required by the user.
  • Figs. 2A and 2B illustrate a door lock unit 200 according to one embodiment.
  • the door lock unit 200 includes an imaging device 210 for providing security
  • the imaging device 210 includes a lens 215 that allows light to pass through an aperture array (not shown) and onto an imaging sensor (not shown).
  • the door lock unit 200 includes a battery (not shown) that is configured to provide power to the imaging device 210.
  • FIG.3 illustrates a block diagram of an imaging device 300 for a security surveillance system according to one embodiment.
  • the imaging device 300 includes a lens 305, an aperture array (also referred to as a mask aperture) 310, an imaging sensor 315, an analog-to-digital (A/D) converter 320 and a communication interface 325.
  • an imaging device that does not use an aperture array 310 can be used.
  • the lens 305 is a fixed lens that can be typically used for a camera.
  • the aperture array 310 can be a physical masking aperture, such as the coded mask aperture 500 shown in Fig. 5, an electrical mask in which an electrical field is used to "blind” some areas of the imaging sensor 315, a magnetic mask in which a magnetic field is used to "blind” some areas of the imaging sensor, etc.
  • the coded mask aperture 500 includes a plurality of holes 505 that have varying shapes and sizes arranged in a specific pattern that is known by a control processor unit (such as the control processor unit 120 shown in Fig. 1). When light passing through the lens 305 passes through the aperture array 310, multiple images are thrown onto the imaging sensor 315.
  • the aperture array 310 can be reconfigured by the control processor unit by changing the position, size and shape of various holes in the aperture array 310. In this way, security for unprocessed digital image data sent by the imaging device 300 can be increased as a hacker would be required to know the hole structure of the aperture array 310 in order to reconstruct the image.
  • the control processor unit can be reconfigured by the control processor unit by changing the position, size and shape of various holes in the aperture array 310. In this way, security for unprocessed digital image data sent by the imaging device 300 can be increased as a hacker would be required to know the hole structure of the aperture array 310 in order to reconstruct the image.
  • the aperture array 310 is formed of metal and/or plastic. Also, in some embodiments, the imaging device 300 can include multiple aperture arrays that can be moved into different positions to form a different hole pattern for light passing through the aperture arrays.
  • the imaging sensor 315 is mounted to a surface within the imaging device 300 and can be an array of single pixel photodiodes that are arranged to receive light passing through the aperture array 310.
  • the imaging sensor 315 includes a 10 x 10 array of photodiodes.
  • the imaging sensor 315 includes a 20 x 20 array of photodiodes.
  • the imaging sensor 315 uses a CMOS or CCD based imaging sensor. The imaging sensor 315 by itself, or with the assistance of the aperture array 310, captures unprocessed analog image data and sends the unprocessed analog image data to the A/D converter 320. In some
  • the imaging sensor 315 can be manufactured to include no moving parts, such as a DMD, moving lens, etc.
  • the imaging sensor 315 is not limited to visible light wavelengths and can sense multiple wavelengths at the same time.
  • the imaging sensor 315 can be sensitive to infrared wavelengths.
  • the imaging sensor 315 can be sensitive to one or mover visible light wavelengths and one or more infrared wavelengths. Accordingly, the imaging sensor 315 could be able to see through smoke or detect a fire hot-spot.
  • a security surveillance system that uses the imaging device 300 (such as the security surveillance system 100 shown in Fig. 1) could direct emergency services to the surveillance area where the imaging sensor 315 detects smoke or fire or by instructing the surveillance area to illuminate exit pathways to allow people to exit safely.
  • Unprocessed analog image data generated by the imaging sensor 315 includes compressive ly-sensed data that is obtained by virtue of the imaging sensor 315 in combination with the aperture array 310 as very few "samples" of the image are sensed through the aperture array 310.
  • Compressive sensing as described herein, is directed to the physical arrangement of the imaging sensor 315 alone or in combination with the aperture array 310.
  • the compressive ly-sensed data is obtained by virtue of the imaging sensor 315 alone.
  • the unprocessed analog image data is the output of light sensed by the imaging sensor 315 as an electrical voltage value.
  • the unprocessed analog image data includes a sparse data set having multiple contrast maps recorded multiple times a second within a set period of time such as, for example, 1 millisecond in well lighted conditions and 100 milliseconds in low light conditions.
  • the A/D converter 320 receives the unprocessed analog image data (in the form of analog voltage values), which includes information in field-of-view in the form of a contrast map, and uses compressive sensing to digitize the unprocessed analog image data into unprocessed digital image data.
  • the unprocessed digital image data can also include contrast map aperture array information (e.g. random pattern information of the aperture array used in creating the contrast map).
  • the A/D converter 320 sends the unprocessed digital image data to the communication interface 325.
  • the communication interface 325 sends or transmits the unprocessed digital image data outside of the imaging device 300 to a control processor unit (e.g., the control processor unit 120 shown in Fig. 1).
  • the communication interface 325 includes a low power, low bandwidth transceiver capable of wirelessly
  • the transceiver can be configured to transmit data using a low bandwidth, low power wireless communication protocol such as, for example, Zigbee, Wi-Fi, Z-wave, etc.
  • the communication interface 325 is configured to communicate with the control processor unit via a wired connection such as, for example, a fiber optic cable.
  • the imaging device 300 is configured to send and to generate a sparse data set by capturing contrast maps recorded multiple times a second.
  • a plurality of the contrast maps generated within a period of time such as, for example, 1 millisecond in well-lit conditions and 100 milliseconds in low light conditions is required for a control processor unit (not shown) to reconstruct the image.
  • FIG. 4 illustrates a flow chart of a process 400 for displaying/storing an image captured by an imaging device of a security surveillance system according to one embodiment.
  • the process 400 begins at 405 where light enters the imaging device by passing through the lens of the imaging device. If the imaging device includes an optional aperture array, the process 400 then proceeds to 410. If the imaging device does not include the optional aperture array, the process 400 proceeds to 415. At 410, the light entering into the imaging device passes through the optional aperture array 410.
  • the imaging sensor captures unprocessed analog image data from the light, which includes information in field-of- view in the form of a contrast map, and sends the unprocessed analog image data to an A/D converter.
  • the process 400 then proceeds to 420.
  • the A/D converter receives the unprocessed analog image data, which is in the form of analog voltage values, and digitizes the unprocessed analog image data into unprocessed digital image data. In some embodiments, the A/D converter digitizes the unprocessed analog image data into unprocessed digital image data using a sparse matrix reduction. The process 400 then proceeds to 425.
  • the unprocessed digital image data is sent out of the imaging device via a communications interface to a separate control processor unit.
  • the process 400 then proceeds to 430.
  • control processor unit receives the unprocessed digital image data.
  • the control processor unit can include a microcontroller (not shown) and/or a processor (not shown).
  • the control processor unit can be, for example, a back-end security console, digital video recorder (DVR), a handheld device (e.g., a smart phone, tablet pc, laptop, personal desktop computer etc.), etc.
  • DVR digital video recorder
  • handheld device e.g., a smart phone, tablet pc, laptop, personal desktop computer etc.
  • the control processor unit uses image reconstruction algorithms along with contrast map aperture array information (e.g. random pattern information of the aperture array used in creating the contrast map) to reconstruct an image from unprocessed digital image data received from the imaging device.
  • contrast map aperture array information e.g. random pattern information of the aperture array used in creating the contrast map
  • multiple forms of data are required to reconstruct the image into a format that can be viewed by the user.
  • the process 400 then proceeds to 440.
  • the image reconstruction algorithms can be specific to the pattern of holes formed in the aperture array.
  • the image reconstruction algorithm is an algorithm that is executed/ performed by the control processor unit, along with information relating to the hole pattern of the aperture array in the imaging device. That is, the control processor unit can run the image reconstruction algorithm using the knowledge of the hole pattern, and the electrical voltage output of the imaging sensor (e.g. a photo-diode array/ sensor) that was digitized by the A/D converter.
  • the control processor unit can be configured to run the image reconstruction algorithm multiple times a second, so that a video output can be obtained.
  • control processor unit displays and/or stores the reconstructed image as required by the user.
  • a security surveillance system comprising:
  • an imaging device configured to generate unprocessed digital image data
  • the imaging device including a lens, an imaging sensor configured to generate unprocessed analog image data, an analog to digital converter configured to digitize the unprocessed analog image data into unprocessed digital image data, and a communication interface configured to send unprocessed digital image data;
  • control processor unit configured to receive the unprocessed digital image data from the communication interface and configured to reconstruct an image from the unprocessed digital image data using an image reconstruction algorithm
  • unprocessed analog image data includes compressively-sensed data in the form of analog voltage values that are based on light sensed by the imaging sensor.
  • the imaging device further includes an aperture array disposed between the lens and the imaging sensor, and the control processor unit is configured to reconstruct the image from the unprocessed digital image data using the image reconstruction algorithm and contrast map aperture array information of the aperture array.
  • the aperture array is a coded mask aperture that includes a plurality of holes of varying shapes and sizes arranged in a specific pattern, wherein the specific pattern of holes in the coded mask aperture is included in the contrast map aperture array information.
  • the aperture array is one of an electrical mask that provides an electrical field configured to blind portions of the imaging sensor and a magnetic mask that provides a magnetic field configured to blind portions of the imaging sensor.
  • the control processor unit is one of a back-end security console, a digital video recorder, a smart phone, a table personal computer, a laptop or a personal desktop computer.
  • the security surveillance system of aspects 1-7 wherein the imaging sensor is sensitive to infrared wavelengths.
  • the imaging sensor is an array of a plurality of single pixel photodiodes.
  • a method for providing security surveillance using an imaging device including:
  • the imaging sensor capturing unprocessed analog data from the light passing through the lens of the imaging device, the unprocessed analog data including
  • an analog to digital converter of the imaging device digitizing the unprocessed analog image data into unprocessed digital image data
  • a communication interface of the imaging device sending the unprocessed digital image data out of the imaging device to a control processor unit for reconstructing an image from the unprocessed digital image data.
  • control processor unit reconstructing the image from the unprocessed digital image data using an image reconstruction algorithm.
  • control processor unit reconstructing the image from the unprocessed digital image data using an image reconstruction algorithm and contrast map aperture array information that includes random pattern information of the aperture array.
  • the imaging sensor capturing unprocessed analog data from infrared light passing through the lens of the imaging device.
  • An imaging device of a security surveillance system comprising:
  • an imaging sensor configured to generate unprocessed analog image data from light passing through the lens
  • an analog to digital converter configured to digitize the unprocessed analog image data into unprocessed digital image data
  • a communication interface configured to send unprocessed digital image data to a control processor unit separate from the imaging device
  • the unprocessed analog image data includes compressively-sensed data in the form of analog voltage values that are based on light sensed by the imaging sensor.
  • the communication interface is configured to send the unprocessed digital image data to the control processor via a wireless connection using at least one of a Zigbee, Wi-Fi, or a Z-wave communication protocol.
  • an aperture array disposed between the lens and the imaging sensor, wherein the aperture array is a coded mask aperture that includes a plurality of holes of varying shapes and sizes arranged in a specific pattern.
  • the imaging device of aspects 17-18 further comprising:
  • an aperture array disposed between the lens and the imaging sensor, wherein the aperture array is one of an electrical mask that provides an electrical field configured to blind portions of the imaging sensor and a magnetic mask that provides a magnetic field configured to blind portions of the imaging sensor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Studio Devices (AREA)
  • Closed-Circuit Television Systems (AREA)

Abstract

La présente invention a trait à un système de surveillance de sécurité. Le système inclut un dispositif d'imagerie qui est conçu de manière à générer des données image numériques non traitées et une unité maîtresse. Le dispositif d'imagerie est constitué d'une lentille, d'un capteur d'imagerie qui génère des données image analogiques non traitées, d'un convertisseur analogique-numérique qui est conçu de manière à numériser les données image analogiques non traitées en données image numériques non traitées, et d'une interface de communication qui est conçue de manière à envoyer les données image numériques non traitées. L'unité maîtresse est conçue de manière à recevoir les données image numériques non traitées provenant de l'interface de communication et est conçue de manière à reconstruire une image à partir des données image numériques non traitées à l'aide d'un algorithme de reconstruction d'image. Les données image analogiques non traitées incluent des données détectées par compression sous la forme de valeurs de tension analogiques qui sont basées sur la lumière qui est détectée par le capteur d'imagerie.
PCT/US2013/036395 2012-04-12 2013-04-12 Procédés et systèmes destinés à un système de surveillance de sécurité doté d'un dispositif d'imagerie WO2013155429A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN1110DE2012 2012-04-12
IN1110/DEL/2012 2012-04-12

Publications (1)

Publication Number Publication Date
WO2013155429A1 true WO2013155429A1 (fr) 2013-10-17

Family

ID=49328203

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2013/036395 WO2013155429A1 (fr) 2012-04-12 2013-04-12 Procédés et systèmes destinés à un système de surveillance de sécurité doté d'un dispositif d'imagerie

Country Status (1)

Country Link
WO (1) WO2013155429A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030065907A (ko) * 2002-02-01 2003-08-09 멀티넷시스템(주) 이동 단말기를 이용한 감시 카메라 제어 방법 및 장치
KR100480520B1 (ko) * 2004-10-29 2005-04-07 (주)유디피 영상 전송 방법 및 상기 방법을 이용하는 네트워크 카메라시스템
KR100516969B1 (ko) * 2003-05-29 2005-09-29 주식회사 아이레보 디지털 도어락을 이용한 보안 시스템의 제어 방법 및 시스템
KR20080013238A (ko) * 2006-08-08 2008-02-13 김시태 전자식 도어록 영상 장치
US20110315855A1 (en) * 2005-01-18 2011-12-29 Perlman Stephen G Apparatus and method for capturing still images and video using coded lens imaging techniques

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030065907A (ko) * 2002-02-01 2003-08-09 멀티넷시스템(주) 이동 단말기를 이용한 감시 카메라 제어 방법 및 장치
KR100516969B1 (ko) * 2003-05-29 2005-09-29 주식회사 아이레보 디지털 도어락을 이용한 보안 시스템의 제어 방법 및 시스템
KR100480520B1 (ko) * 2004-10-29 2005-04-07 (주)유디피 영상 전송 방법 및 상기 방법을 이용하는 네트워크 카메라시스템
US20110315855A1 (en) * 2005-01-18 2011-12-29 Perlman Stephen G Apparatus and method for capturing still images and video using coded lens imaging techniques
KR20080013238A (ko) * 2006-08-08 2008-02-13 김시태 전자식 도어록 영상 장치

Similar Documents

Publication Publication Date Title
US9871999B2 (en) Modular camera monitoring systems and methods
US20210074138A1 (en) Area monitoring and communication
KR100968137B1 (ko) 시큐리티 시스템 및 방법
TWI521480B (zh) 能主動偵測終端裝置所在位置之安全看護系統
CN105306912B (zh) 基于光强度和距离检测触发摄像的智能猫眼系统
WO2017208437A1 (fr) Appareil et système de capture d'images
AU2017245347B2 (en) Wireless industrial process field device with imaging
KR20160032004A (ko) 보안 및/또는 감시 장치 및 시스템
US10984640B2 (en) Automatic adjusting of day-night sensitivity for motion detection in audio/video recording and communication devices
KR101128946B1 (ko) 감시용 카메라의 열화상 촬영 장치 및 방법
KR20140050773A (ko) 다목적 경보 장치 기반의 스마트폰을 이용한 창문 감시 방법 및 창문 감시 시스템
US20100060733A1 (en) Remote surveillance system
US9594290B2 (en) Monitoring apparatus for controlling operation of shutter
KR101564095B1 (ko) 복합센서모듈을 이용한 센서 네트워크 시스템
KR20150035108A (ko) 와이파이 다이렉트를 이용한 로봇 청소기 및 방범 시스템
KR101278562B1 (ko) 세대 보안 현관카메라를 이용한 홈 네트워크 시스템
JP2020171057A (ja) 撮像装置
KR101890823B1 (ko) 360도 영상을 지원하는 지능형 감시 카메라 및 이를 이용한 지능형 감시 시스템
US10893195B2 (en) Systems and methods of multi-sensor cameras and remote imagers
WO2013155429A1 (fr) Procédés et systèmes destinés à un système de surveillance de sécurité doté d'un dispositif d'imagerie
KR101527813B1 (ko) 유아를 위한 보육 및 교육 시설에서 유아 보호를 위한 ｃｃｔｖ 관리 단말, 그리고 ｃｃｔｖ 정보 획득 방법
KR100766995B1 (ko) 3차원 카메라 모듈장치
KR20130011344A (ko) 단말용 원격 감시 시스템
Hariharan et al. ADVANCE SECURITY SYSTEM FOR PERSONAL AREA USING RASPBERRY PI
KR20130001077A (ko) 도난 방지용 네트워크 카메라

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13776235

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13776235

Country of ref document: EP

Kind code of ref document: A1