Ipcam 090727060856-phpapp02
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Ipcam 090727060856-phpapp02 Ipcam 090727060856-phpapp02 Presentation Transcript

  • Presentation by Manoj B Faculty Advisor: Prof. Ravikala Kamath
  • Presentation Outline _ Overview _ Since last time _ Approach _ Bottom up component level approach _ IP Camera/802.11 Solution _ MPEG4 Media Recorder/Zigbee Solution _ Timeline _ Estimated Budget
  • Overview _ Wireless Video Sensor Network  Sensor nodes controlled by a central router/computer  Video, Audio, with motion sensor activation Sleep mode, continuous and burst modes of operation  Mobile  Self Configuration
  • Protocols and Bandwidth Requirements _ Video  MPEG4 _ Video Resolution  320*240  80kbps compressed _ Wireless  802.11b/g _ 11/54Mbps  Zigbee _ 250kbps
  • Definite Specifications _ Web interface for displaying video _ Self Configuration _ Mobile _ Battery Life  2 Hours with continuous, Week with burst mode Range  30 Meters _
  • Approach _ 3 Main options  Built from the ground up using components Expensive _ Tricky _  Use an already available IP Camera Cheap _ Easiest _  Use a media recorder with Zigbee transmission Relatively Inexpensive _ USB _
  • Since Last Time _ IP Network Attached camera reference designs  Too expensive _ Dev kits $2500-$10000 _ Not designed with our purpose in mind Much too complex with resources given  Red Tape  Little to no cooperation from manufacturers/sales reps
  • Component Approach Build a design using a camera, microphone, video/audio MPEG encoder chip, wireless chip _ Expensive _ Each part is separately expensive Development kits for individual parts _ Complex  Getting the parts to work with one another  Basically creating a reference board design
  • IP Camera Approach Widely available _ Low cost _ _ The camera, microphone, compression and wireless are built in Built in web server Linksys firmware is open source under GPL _ _  Modify to suit the project requirements
  • Media Recorder Approach Handheld Media Recorder _ MPEG4 Compression _ USB out _ Zigbee as wireless protocol Would make software to display information on a pc _ _  Complex drivers _ Do not know what is being output through USB port of camera
  • Timeline September Research Preliminary Design Final Design Building Software Testing October November December January February March April May
  • Estimated Budgets IP Camera Solution Media Recorder Solution IP Cameras (3) $500 Wireless Router $50 Media Recorders (3) $400 XBee Development Kit $300 Mobile Testbed (3) $100 Mobile Testbed (3) $100 Other Materials $100 Other Materials $100 Total $750 Total $900 Decision based upon power requirement
  • What is an IP Camera? IP camera is a combination of a camera and a computer. The camera can be connected directly to the network. It has built-in software for a web server, FTP server and e-mail client. Some advanced versions support motion detection and alarm input/output ports.
  • Difference between IP and CCTV Camera • Analog CCTV systems connect to a DVR (digital video recorder) using coax cables and BNC connectors (not networked). • IP Cameras connect directly to an existing Ethernet network. This connection could be wired or wireless and they can be accessed from anywhere.
  • Difference between IP and WEB Cameras • WEB cameras must be plugged to a computer to be used (USB connection). They have to use the resources of the computer they’re connected to. • IP cameras are independent networking devices that can be shared and accessed from anywhere.
  • How does an IP Camera work? • The Camera captures the image • Captured images are transformed into electrical signals • These signals are converted from analog to digital format • Digitized signals are compressed and sent over the network
  • Image resolution • Digital image resolution is measured in Pixels (640 x 480, 320 x 240) • The more detailed an image, the more pixels and the larger the file size • Detailed images require more space on a hard disk and more bandwidth for transmission
  • Image Compression • For storing and transmitting images over the network, they must be compressed or they will consume too much disk space or bandwidth • M-JPEG and MPEG4 are the common standards used for image compression in IP Cameras
  • M-JPEG vs. MPEG4 M-JPEG • Less compression • Better image quality • Larger images and video files • More bandwidth required • More storage space MPEG-4 • More compression • Lower resolution • Reduces amount of storage needed • Reduces bandwidth utilization by camera • Allows more video to store
  • Lens Questions What are CCD and CMOS cameras? Charge Coupled Device (CCD) and Complementary Metal Oxide Semiconductor (CMOS) are the components in a camera that act as the camera’s “digital film” and are responsible for resolution and overall quality of the picture. CCD cameras have better light sensitivity, sharper images and enhanced colors and are more expensive than CMOS cameras.
  • Lens Questions What is the f number? f# is the ratio of the lens focal length to it’s diameter What is the focal length? Focal length indicates how far behind a lens an image will form. shorter the focal length = wider the angle of view
  • Questions What are some specific network camera applications? » Security surveillance for Banks, Shops, Offices, Warehouses…… » Remote monitoring of the house, daycare or schools
  • Can I monitor my camera from anywhere? Yes If on the same network, you need the camera’s IP address. If on the Internet, you need the WAN IP of the router or a domain name registered with a dynamic DNS provider. (Router must be configured for port forwarding)
  • Does my computer need to be on all the time if I use an IP camera? No Once the IP Camera is installed and configured, it can be accessed from any system using Internet Explorer.
  • Do I need a high speed Internet connection to use an IP Camera? YES (for remote access) Dial-up connections don’t provide enough bandwidth for streaming video.
  • 1st Question: Why IP Camera?
  • For “Home” user, the 1st question will be: What’s the difference between IP cam vs. Webcam? True IP camera PC-based camera Place it anywhere. The PC-attached camera needs to You can connect the network be within 3 meter (10 feet) of the camera to the network, cell PC. Flexibility phone, or wireless adapter. Everything needed to stream live You will need 3 components: Web Functionality video over networks is included in camera, PC and PC software. the network camera. High scalability. Constructed No Scalability Scalability under current network environment User CAN get individual videoUser CAN NOT get individual video Personalization profile, network protocol, bitrate profile, network protocol, bitrate per different network environment per different network environment The cost of the network camera Total cost of Web camera, PC and Cost only. PC software.
  • For “SMB, Enterprise”, the reason to choose IP camera: Remote accessibility Save TCO (Total Cost of Ownership) Central manageability Scalability Distributed intelligence Smart video mining
  • 2nd Question: Where to install IP Camera?
  • Home Caring- baby, elder, pets View and monitor IP camera anytime, anywhere!
  • Private and Public Organization Education Retail Government Transportation Industrial Bank
  • Product FAQ: 1) Video and Audio
  • Multi-profile VIDEO- One network camera can fit in various network environment. MPEG4 and MJPEG Dual CODEC simultaneously A-MTK internet cameras support multiple resolutions and multiple video compressions simultaneously. The internet camera can generate different video stream per user’s command. For instance, in home environment, the network bandwidth is limited. User can command network camera to generate “MJPEG, 320*240 resolution” for live view. In the same time, another user can command network camera to generate “MPEG4, 640*480 resolution” simultaneously. This is so-called “Multi Profile”. MPEG4, QQVGA MPEG4, QVGA JPEG, VGA/ QVGA/ QQVGA 4 Multi-profile simultaneously 1. MPEG4, QQVGA 2. MPEG4, QVGA 3. MPEG4, VGA 4. JPEG, VGA/ QVGA/ QQVGA (selectable) MPEG4, VGA
  • Mega-pixel Video 1.3M CMOS sensor + Multi-profile 1. In Mega-pixel mode, generate DUAL Mega-pixel profiles simultaneously: User can get both snapshot and streaming video in Mega-pixel resolution. 2. Megapixel is for superior image quality!
  • Network protocol- A-MTK Supports UDP/ TCPIP/ HTTP The way for “video streaming” Streaming Pros UDP streaming though rtp port and rtsp port if bandwidth enough, user •if bandwidth is not enough, can get the best image IP cam will lose packet quality •UDP need MIS open all the rtp and rtsp port and http port TCP/IP streaming though rtsp port User do not need to enable rtp port, only rtsp port and http port The image quality is not as good as UDP (but better than HTTP) HTTP Streaming MIS only need to enable through http port (80) for both port streaming and webpage The image quality is not as good as UDP Note: HTTP port is must for web UI Cons
  • Pan/Tilt Control
  • Pan & Tilt Control- PT(Z) IP cam Auto Pan: Continuous panning between horizontal end points One click panning 5 rounds Presets: User can manually define any location as preset points Maximum 64 presets. Preset name can be defined Camera Tour: Camera auto patrol between “Preset” points Maximum 16 camera tour. One click one round . Manual Pan/Tilt control 1. 2. Via 4 way navigator Click the image window Continuous Auto Pan and Camera Tour User can set “Event schedule,“Schedule trigger” After schedule trigger is setup ready, the IP cam will auto pan or camera “one round every minute”.
  • Potential disadvantages of IP cameras The following are some of the potential weaknesses of IP cameras in comparison to analog CCTV cameras:  Higher initial cost per camera.  Less choice of manufacturers.  Lack of standards. Different IP cameras may encode video differently or use a different programming interface. This means a particular camera model should be deployed only with compatible IP video recording solutions.  High network bandwidth requirements: a typical CCTV camera with resolution of 640x480 pixels and 10 frames per second (10 frame/s) in MJPEG mode requires about 3 Mbit/s.  Technical barrier. Installation for IP Camera required a series of complicated network setting including IP address, DDNS, router setting and port forwarding. This is very difficult for most users to do alone without help from IT technician.
  • Conclusion Having some kind of monitoring system at home or office is always handy for owners. When property owners are able to monitor homes or offices with surveillance equipment, it's like they have a television network devoted to the safety of their properties. IP camera can just do the job. It not only let owners know the condition of their property from remote locations, but also keep records. It is definitely an efficient surveillance system at home and office to protect properties.
  • Thank You