IP Surveillance. Presentation for BICSI Regional Conference Troy, Michigan March 15, Tom Jones, PE, RCDD / NTS Field Sales Engineer, D-Link

Transcription

1 IP Surveillance Presentation for BICSI Regional Conference Troy, Michigan March 15, 2011 Tom Jones, PE, RCDD / NTS Field Sales Engineer, D-Link

2 Agenda Analog or IP Security Cameras VGA or Megapixel Resolution CMOS or CCD Sensor Security for the Security Camera Video Analytic Software Network Capacity Needs for IP Surveillance Storage Needs for the Video

3 Evolution of Camera Systems VCR Age Camera with CCD sensor (digital) with analog coax cable connection to analog VCR DVR Age (since 1996) Camera with CCD sensor (digital) with analog coax cable to A/D converter, then network connection to digital DVR NVR Age Camera with CCD or CMOS sensor and digital connection to network to reach NVR

4 Analog Camera Systems Also Called CCTV Advantages Lower Initial Cost for Cameras Isolated Separate Network on Coax Cable Standard TV Resolution for Monitors Disadvantages Often Maintenance Intensive Different Cabling System No Remote Viewing Unless Hybrid System Typically Recorded on VCR Tape Harder to Review Higher Resolution Is Very Expensive and Requires Special Expensive Monitors to View

5 Hybrid Systems Uses Digital Video Recorder Allows Remote Viewing and Recording Added Cost for A-D Converter Not Changed: Still No Good Zoom Capability Still Need Coax Cable to Camera No Improvement in Resolution

6 IP Camera Systems Use Network Based Digital Recording System Use Lower-cost Cat 5 Cabling Cable Runs Often Much Shorter Often Use Same Infrastructure as Data Offer Remote Viewing and Recording Easier to Add More Cameras Video Stream Can Be Encrypted Higher Resolution and Zoom at Lower Cost More Easily Integrated with Physical Security Systems

7 Agenda Analog or IP Security Cameras VGA or Megapixel Resolution CMOS or CCD Sensor Security for the Security Camera Video Analytic Software Network Capacity Needs for IP Surveillance Storage Needs for the Video

8 VGA or Megapixel Resolution Megapixel (1280x1024 or 1280x960) compared to D1 (720x480) or VGA (640x480) Traditional CCTV Camera sends video data by composite signal with D1 (720 x 480 Interlaced NTSC) resolution limitation. IP Camera sends digital video data over the network and can support VGA, Megapixel, or higher resolution with better quality. VGA resolution 1.3 Megapixel resolution

9 IP Camera Resolutions VGA 640x Megapixel 1280x1024 or 1280x960 2 Megapixel 1600x Megapixel 2048x Megapixel 2592x1944 HDTV 720P 1280x720 (1.0 megapixel) 1080P 1920x1080 (2.1 megapixel)

10 Agenda Analog or IP Security Cameras VGA or Megapixel Resolution CMOS or CCD Sensor Security for the Security Camera Video Analytic Software Network Capacity Needs for IP Surveillance Storage Needs for the Video

11 CMOS or CCD Megapixel CMOS vs. Megapixel CCD CMOS generally consumes less power and is lower cost Megapixel CMOS sensor has color as good as CCD In normal light condition, CMOS quality is the same as CCD Megapixel CMOS sensor Megapixel CCD sensor

12 CMOS or CCD Megapixel CMOS can get better low lux performance than CCD In 0.5 lux light (Night mode), CMOS quality is better than CCD Megapixel CMOS sensor Megapixel CCD sensor

13 Wide Dynamic Range or Back Light Compensation WDR performance is better then BLC Wide Dynamic Range (WDR) Technology Uses two shutter speeds in alternative video fields, high and normal Combines these two fields into one frame, which allows every detail to be captured accurately even if one portion is bright while other portions are dark

14 Details of WDR WDR for high contrast light source environment The Wide Dynamic Range (WDR) function of a camera is intended to provide clear images even under back light circumstances where intensity of illumination can vary excessively. WDR cameras are usually recommended for situations where light enters a premise from various angles such as a multi-window room. A camera placed on the inside of the room will be able to see through the intense sunlight or artificial light coming in. If a normal indoor security camera is pointed towards a window or an entrance door, you will see either a dark interior or the background washed out during daytime. This is very common situation in restaurants and stores which have big glass windows.

15 WDR Details WDR Effect In Varying Light Situation Here, a bright light is on only part of shadow box NO WDR IMAGE WDR IMAGE

16 Lens Is a Factor for Day & Night Cameras IR Corrective Lenses for Day & Night focus Day & Night cameras normally operate in the nearinfrared/infrared zones at night, making the image out of focus and unsuitable if used with a conventional lens IR Lens utilizes a special optical glass material which minimizes light dispersion

17 Agenda Analog or IP Security Cameras VGA or Megapixel Resolution CMOS or CCD Sensor Security for the Security Camera Video Analytic Software Network Capacity Needs for IP Surveillance Storage Needs for the Video

18 Secure Camera Management HTTPS for network security Hypertext Transfer Protocol over Secure Socket Layer or HTTPS is used to provide a secure HTTP connection. This encrypts the management of the camera

19 Use of Virtual LANs Using a Separate VLAN for Video Helps Reduce the Ability for Hackers to Disrupt or Corrupt Video Surveillance Requires Smart or Managed Switches Throughout the Network

20 Privacy Mask Allows blocking out certain sensitive zones for privacy

21 Agenda Analog or IP Security Cameras VGA or Megapixel Resolution CMOS or CCD Sensor Security for the Security Camera Video Analytic Software Network Capacity Needs for IP Surveillance Storage Needs for the Video

22 Video Management Software Basic Functions = Free or Low Cost Supports Fewer Cameras Snapshot or Video Recording Timed Recording Motion Detection Alert s Advanced Functions = Licensed per Camera Supports Many More Cameras and Camera Groups Multi-location, Multi-user Viewing with Different Rights Distinguish Between Colors or Shapes Resolution Enhancement Easier Image Review with More Features

23 Typical Video Software Viewing Panel Navigation Structure 23

24 Agenda Analog or IP Security Cameras VGA or Megapixel Resolution CMOS or CCD Sensor Security for the Security Camera Video Analytic Software Network Capacity Needs for IP Surveillance Storage Needs for the Video

25 Network Capacity Needs Determine Need for Separate VLAN Calculate Bandwidth Needs Factors: Resolution, Frame Rate, Number of Cameras Bandwidth Calculators Available Online or from Vendors

26 Network Capacity Needs Insure Adequate Bandwidth Available Use Smart or Managed Switches for VLANs Use QoS on Network if Needed Some Cameras Send Multiple Streams

27 Agenda Analog or IP Security Cameras VGA or Megapixel Resolution CMOS or CCD Sensor Security for the Security Camera Video Analytic Software Network Capacity Needs for IP Surveillance Storage Needs for the Video

28 Options: Video Storage Some Cameras Support Local Storage (ie., SD Card) Digital Video Recorder (DVR) Local Drives on a PC or Server (DAS) Network Attached Storage (NAS) Storage Area Network (SAN) Insure Adequate Storage Available What Happens When Storage Is Full? Write Over Oldest Material Cease Recording

29 Questions?