Media Broadcast Solutions

Network Design

Private Copper , Fiber Optic Network or Wireless

Met-Scan Canada has provided private fiber optic and wireless networks for the largest Police Services in Canada. Public Sector organizations often have vast resources that they are not aware of. We approach these organizations with a very basic process.

Discovery

Met-Scan conducts and inventory to identify assets that are available to the public sector organization.

• Unused fiber cable from other departments.
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• Does the public sector own Utilities, Street lighting, Duct structure under street or other assets suitable for placing fibre on or running through?



• Does the public sector radio towers or buildings

Design

After the Discovery phase Met-Scan designs new infrastructure to connect the discovered assets or provides complete standalone solutions. Whether your requirements are for a simple point to point to point or a complex redundant and diverse solution Met-Scan will provide on time and at the price quoted.

Integration

• Once all the discovery and design phase is done Met-Scan Canada will place the fiber optic cable needed or assist the Public sector to install. At this time wireless networks can be connected to the fiber optic network and overlayed applications will be integrated into a solution for the customer. Examples
  • CCTV
  • Private Ethernet
  • VOIP
  • Digital Evidence
  • Wireless Media Applications

Solution Overview

Our solution offers numerous benefits such as unmatched reliability, unlimited bandwidth, infinite scalability, efficient transmission, open architecture, support for third party integration and exceptional network layout flexibility.

By utilizing a managed video solution over IP (Internet Protocol), we are able to deliver a solution that provides a high degree of flexibility and versatility, as well as offering the inherent benefit of high fault tolerance. Assets can be viewed in real time and archives can be searched from any PC over the network – provided the required permissions exist. Similarly, maintenance and configuration tasks can also be accomplished from any secured networked workstation and in theory, via secure remote access to the network.

Open architecture makes the system hardware agnostic, offering support for a wide array of cameras and ancillary products from a multitude of vendors. Superior bandwidth management is made possible by employing a multicast transmission protocol, and can be further adjusted at the camera level to allow for system optimization. The system as implemented will support MJPEG compression, but will also support other CODECS (compression/decompression algorithms) including H.264 and MPEG-4 for flexibility in future use. Multiple streams from a single CCTV camera are also supported, allowing for different settings for different applications and environments. Furthermore, by utilizing a feature known as video down-sampling, a 30 fps stream could be recorded at 15 fps without compromising live streaming quality

Storage requirements for the recorded assets can be satisfied using virtually any storage technology available (iSCSI, NAS, RAID, SAN, etc.). This storage can reside anywhere on the network, which fortifies the existing fault tolerant design and facilitates writing to multiple drives in parallel (a necessity for achieving maximum throughput in terms of disk access). Exceptional scalability means that storage devices can be added as needed. Management options for storage include automatic purging upon expiration of a predetermined retention period and can be configured individually at the camera level. Assets deemed critical can be protected from deletion for any desired period of time.

Perhaps the most crucial elements in maintaining a high level of reliability are the concepts of failover and redundancy. Both approaches are utilized in this proposed solution to ensure continuous service availability. Failover servers exist in a standby mode and are deployed when primary servers are unavailable due to failure or scheduled downtime. The transfer of operations in a failover process is seamless and will not impact surveillance tasks and/or recorded assets. Redundant archiving further improves reliability in critical applications by replicating all recorded assets (video and related data) on distinct devices.

With threats to network security and data integrity increasing constantly, the availability of tools to combat such threats is a necessity. The proposed system includes several security measures to protect against a multitude of threats such as non-authorized access, video tampering and distortion of video transmissions. All communications are capable of being encrypted, meaning that intercepted data will not be recognizable to an attacker. Digital signatures ensure that acquired assets retain their admissibility in court. The signature process analyzes each video frame and applies a complex algorithm to generate a distinct signature. Should even a single pixel be modified in any acquired asset, the unique digital signature will no longer match and the system will notify the user/operator that said assets have been tampered with. External and internal access to the servers and related applications is controlled by unique user names and passwords. All activities are logged for audit purposes. Access privileges can be defined to control the range of actions of any user or group of users.

User interfaces for the solution are highly intuitive and can be customized to suit the individual user. Full screen and multiple screen options permit the operator to maximize the amount of video information displayed by removing all non-video elements. Touch screen technology can be easily implemented in the future to further improve ergonomics.

System behavior can be tailored to suit the needs of the particular Public Sector. Events and related actions can be easily defined, including input from third party and legacy devices.