here's something else to add to your informative post Oz....

Both our VP of Sales and our President at Denselight "liked" the following article on LinkedIn, dated April 26, 2017.

"26th April 2017, Church Crookham, UK – Fotech Solutions, the linear asset technology monitoring specialist, has been named as a founder member of the Fiber Optic Sensing Association (FOSA), a new trade association dedicated to educating the industry, government and public on the benefits of fiber optic sensing technology.

more info here: https://www.fiberopticsensing.org/

and another relevant application......

Perimeter Security: The Big Picture

So often an afterthought compared to access control or CCTV, the perimeter security market is set for years of strong growth.

Over the past decade, advances in technology have helped increase the scope of perimeter security systems. Historically used to prevent and detect intrusions in military facilities, critical infrastructure, and other high-risk sites, perimeter security solutions are now being used in areas such as commercial and residential sites, retail spaces, transportation sites, and many other urban and remote locations.

Major players in perimeter protection

The global perimeter security market is estimated to reach US$21 billion by 2020, growing at 8% CAGR during 2015-2021, according to market research analysts Research and Markets. North America is currently the most advanced region for perimeter security technology, however, Latin America, the Middle East and Africa are expected to emerge as high-growth markets over the next five years.

Key players include Anixter International, Axis Communications, Fiber Sensys, FLIR Systems, Honeywell International, RBtec Perimeter Security Systems, Senstar, Southwest Microwave, Tyco, United Technologies Corporation, and Xtralis, among others.

Multi-layered perimeter protection

With growing perimeter security threats, demand for multi-layered perimeter protection has increased. Technologies growing in popularity include next-generation fence-mounted sensors, infrared, and integrated fibre-optic PIDS. Thermal cameras and video analytics are also popular solutions, while intrusion detection technologies such as microwave, seismic sensors and radar are also experiencing high growth.

Indeed, radar has the advantage of working in most lighting and weather conditions, while it can also survey large areas that might otherwise require numerous cameras to achieve the same detection coverage. Nevertheless, video surveillance cameras are being deployed for perimeter security at a high rate and are an integral part of most perimeter security strategies.

full article found here: https://www.ifsecglobal.com/perimeter-security-the-big-picture/