The feedback we received from law enforcement agencies was that the live feeds were of low quality, mostly caused by pushing video over a singular cellular network connection. It was often deemed unstable due to low bandwidth availability or by congestion caused by many users in highly populated areas. What compounded the problem is the need for continuously high bandwidth, and a quality high enough to make it admissible in a court of law. Also, when using publicly available networks for surveillance and communications, it is imperative that all connections are secure.
Another factor is latency – the time it takes the video feed from the camera to reach the control center. Anything longer than two seconds is deemed too long for making an effective operational decision. Enforcement agents will always need a separate verbal confirmation from someone with eyes on the scene which is often challenging. If a picture speaks a thousand words, then imagine the words an instant video can speak with almost zero latency in real time.
The mobile surveillance solution utilized to address the issues identified was the implementation of the ZAO-S from Soliton Systems. The ZAO-S is a mobile H.265 video encoder that weighs only 400 grams. It connects directly to the camera and can connect to multiple 5G/4G/3G/Private LTE networks simultaneously, sending an encrypted live stream back to the command and control center. The ZAO-S live streaming capabilities are regularly tested to the limits in hostile situations during operational duties and in challenging network conditions with unstable or low bandwidth internet connections, such as in a heavily built up area, remote areas or within a building. ZAO-S is easy to use and is extremely lightweight for field operators. The ruggedized units are easily hidden inside uniforms due to its small size.
Being ONVIF compliant, the ZAO-S can seamlessly work with the existing Milestone VMS system. After seeing the successful integration, operators started using XProtect® Smart Client to manage all the operations on the platform that they were already familiar with.
The total latency performance is impressive, it could be reduced to as low as 500msec depending on the latency of the network. All connections are encrypted and live streaming over mobile networks is now more reliable.
The ZAO-S has many features making it ideal for law enforcement. The ZAO-S is super lightweight and robust making it ideal for special operations in the field. Full integration via open standards is a major factor when considering an implementation of new technology for ease of integration and future proofing. As it ONVIF compliant, the ZAO-S can fully integrate the live video stream into Milestone’s VMS Platform.
Live streaming to HQ helps improve operational decision making, and with the talk back feature, allows operators to verbally communicate back to the field agents for giving directions and orders, while all communications are being recorded and archived. The integrated solution also enables third party analytical platforms integrated within Milestone to use live streams to calculate a range of issues in real time allowing the access of a full database to provide efficient comparisons. This is invaluable for supporting the field side of the operations more efficiently.
Go Ito, Managing Director at Soliton Systems adds, “Reliability and low latency are key to successful law enforcement usage. The ZAO-S, in conjunction with Milestone, has proved a very positive addition to law enforcement. By allowing the operations command team to view body-worn action camera feeds, drone feeds and fixed CCTV feeds on the same screen, it enables the commanding officer a more joined up assessment of their live operations in the field so they can make better informed decisions.”
Soliton and Milestone are joining forces to provide the next generation of mobile live streaming for special operations. By using miniature encoders, with bodycams and helmet cameras, in conjunction with the Milestone VMS, the solution will provide law enforcement with high quality, low latency and secure real-time video, ensuring commanding officers can react quickly to dynamic and volatile events as part of their mission to make the world a safer place.