Nestled on the banks of the river Thames, Kew Gardens in southwest London is home to the most diverse collection of living plants anywhere in the world. At 330 acres in size, it’s London’s largest UNESCO world heritage site, and has a history stretching back more than 250 years.

The Royal Botanical Gardens, Kew, attracts more than 1.6 million visitors every year, coming to see the 30,000 different kinds of plants, and to visit the Herbarium, which has over seven million preserved plant specimens. Because of the sheer volume of visitors and the multitude of public and trade entrances to Kew Gardens, the site requires around the clock video surveillance coverage, seven days a week.

Kew’s CCTV control room operations team works to monitor the safety and security of the park, but a need was identified to upgrade the existing legacy analogue CCTV system to one capable of transmitting and recording in true High Definition. Security specialist firm The ITS Group was called in to help.

ITS Group Director Tim Dyer said the Kew project required upgrading equipment in the Gardens’ security control room, and providing site-wide cameras which view all entrances for both public and trade, as well as various strategic locations throughout the Gardens. “Because the control room needed to be in operation 24/7, close co-ordination was required between ITS and the security team on-site,” he says. “We needed to maintain the CCTV in line with the changing site requirements on a daily basis. This, coupled with access issues and working in a public environment, was very challenging, and the fact that we were able to achieve such good results is testament to the close co-ordination between the site team and Kew security.”

Those results were achieved in the process of implementing a Hikvision IP High Definition video surveillance system, which included new 43-inch and 22-inch HD monitors for the control room, along with new touchscreen network keyboards and joysticks.

Control room operators monitor images from a number of different Hikvision cameras. These include an initial 48 DarkfighterX network speed domes, which provide colour HD images in light levels as low as 0.001 Lux.  And when it gets darker still, they provide black and white images in light levels down to 0.0001 Lux. When there’s no light at all, the Darkfighter cameras switch to IR mode and record black and white images at 0 Lux. In addition, they offer 25x zoom capabilities and deep learning-powered target classification for automatic tracking and perimeter protection. They’re complemented by 29 Darkfighter 2 megapixel motorised varifocal lens cameras, 21 ultra-low light smart bullet cameras, and six low light smart cameras.

Images are recorded to Hikvision 16-channel Turbo HD digital video recorders which support analogue, HD-TVI, and IP cameras, H.264, H.264+ and dual-stream compression, and can output at up to 4K resolution.

The resulting system is not only powerful and effective in the short-term, it’s purposefully planned to incorporate forthcoming changes. “The Gardens now have a full HD system which can be expanded with additional cameras in the future,” Tim Dyer says. “It allows them to take advantage of technology advances and newly developed functionality on any cameras or devices they add to the system in future.”

The HD surveillance system has been received exceptionally well by those whose opinion matters most: the security team at Kew Gardens. John Deer, Head of Security, said: “I am delighted with the installation of Hikvision cameras at the Royal Botanic Gardens, Kew. They are of the highest quality, which has enhanced the overall security across the 330 acre site.”