Wireless Video Surveillance Challenge or Opportunity? Mike Intag, RCDD Regional Systems Engineer, Firetide

Transcription

1 Wireless Video Surveillance Challenge or Opportunity? Mike Intag, RCDD Regional Systems Engineer, Firetide

2 Why wireless? Agenda Understanding wireless and RF Wireless mesh Case studies Construction site security Burj Dubai Tower, UAE Mass transit security MBTA, Boston Special event security Super Bowl XLII Municipal public safety Dallas PD Critical success factors

3 Why Wireless? Cost savings/feasibility Mobility and flexibility Install quickly Extend or back-up cable and fiber infrastructure Deploy virtually anywhere

4 Who Needs Wireless Security & Surveillance? Public Safety Education Industrial Transportation Retail Hospitality Healthcare Government Utilities

5 Wireless Options

6 Radio Frequency Technology RF Information is created using electromagnetic waves Frequency is measured in Hertz cycles per second

7 Wireless Frequency Bands Licensed? Line of site Advantage Disadvantage 900 MHz Unlicensed Not required Penetrates trees, drywall 2.4 GHz Unlicensed Required Better penetration compared to 5 GHz 4.9 GH Licensed Required Reserved for public safety; less interference 5 GHz Unlicensed Required Better range and less interference compared to 2.4 GHz Lower throughput for video compared to other bands Interference from consumer devices Requires frequency coordination with other agencies Lower penetration than 2.4 GHz

8 Network Topologies Point to Point Point to Multi-Point (Hub and Spoke, or Star ) Multi-Point to Multi-Point (Mesh)

9 Understanding Wireless Mesh

10 Imagine a Traditional Wired Switch (Wired Ethernet infrastructure)

11 Now, Give Each Port Wireless Capability (Wired Ethernet infrastructure)

12 Separate the Ports Bingo, a Virtual Switch! (Wired Ethernet infrastructure)

13 Wireless Mesh Infrastructure

14 Self-Forming, Self-Healing Wireless mesh is self-healing for resiliency Redundant links eliminate single points of failure associated with conventional wireless Multiple paths overcome line-of-sight Temporary Obstruction Permanent Obstruction

15 Why Mesh for Security and Surveillance?

16 Mesh in Linear Mode Used along railways and transportation corridors

17 Case Studies

18 Public Safety and Security

19 City of Dallas

20 Wireless Surveillance Dallas PD Goals: Crime deterrence and investigation How used Fixed camera placement Overt surveillance 24/7 monitoring at police headquarters Funding Grant from a private foundation Donations from local businesses

21 Project Timeline Pilot at 3 sites in Deep Ellum neighborhood March 2006 issued RFP for downtown project Dec 2006 Feb 2007 Deployment March 2007 Phase 1 complete ~40 cameras Sept 2007 Satellite network in Jubilee Park neighborhood, 14 cameras Nov 2008 Phase 2 in progress ~ 60 cameras

22 24/7 monitoring Monitoring at Police HQ Staffed by experienced officers Coordinated with patrol to respond to incidents Evidence recorded for investigation and prosecution

23 Jubilee Park Surveillance

24 24

25 Software View

26 "We were pleasantly surprised at the speed of implementation. The mesh enables quick setup of the network without a complete overhaul, while providing excellent bandwidth and security for video streams." Deputy Police Chief Tom Lawrence, Dallas PD

27 Key Takeaways Single backhaul radio solutions are only good for 3 hops 10 to 15 cameras per mesh is a good rule of thumb Obtaining power on the poles is most difficult aspect of a municipal deployment Poles on alternating sides of the street provide the clearest pathways Crime cameras really do reduce crime

28 Commercial and Industrial Security Internet WI-FI Coverage

29 Dubai Tower Security, VoIP

30 Transportation Security Security Monitors Internet Internet Gateway

31 MBTA, Boston Mobile Video

32 MBTA, Boston Mobile Video 300+ busses, 8 cameras each Mobile-to-mobile surveillance Passenger and operator safety; liability protection

33 Security for Special Events Public Park

34 Super Bowl 2008 Phoenix PD Glendale PD

35 Critical Success Factors

36 Clear Line-of-Sight Clear line of site between antennas is critical for wireless communications in the 2.4, 4.9, and 5GHz frequencies Fresnel Zone 60 % Fresnel Zone Path clearance

37 Planning a Wireless System Applications Future growth Requirements RF engineering Site survey Network design

38 Set the Right Expectations Understand requirements vs nice-haves Conduct a formal site survey Design mesh network for reliable performance Specify proper equipment Optimize as you go Take advantage of existing fiber assets

39 Technical Considerations for Video Dual radios nodes with minimal latency are required for multiple hops Wireless does not like multicasting multicast groups required Panel antennas and 30 degree sectors are ideal for street pole deployments

40 Technical Considerations, Cont d Mix of 4.9GHz and 5GHz is the optimal solution for citywide public safety deployments Make sure you have RF expertise inhouse Or hire a sub for that first wireless deployment

41 Wireless Saves Time, Money Rockford, IL LA County Sheriff s Dept. Buffalo, NY Denver / DNC 08 Dallas, TX Yuma Intl Airport NASA Dryden Downtown Chicago

42 Thank You! Mike Intag, RCDD Additional case studies at: