Dallmeier’s Hemisphere supports Danish State Railways

Dallmeier’s Hemisphere software is working with Danish State Railways (“Danske Statsbaner”, DSB) in the Azure cloud, supporting more than 2,500 cameras. DSB operates the local passenger transport on nearly all the railway lines in Denmark. For the last 20 years DSB has used Dallmeier for video technology and the local company Scanview A/S for support and on-site installation.

DSB’s video security solution allows the video images from all locations to be accessed individually by an unlimited number of operators at the DSB main operations centre in Copenhagen. Comprehensive display and incident case management functions ensure that an incident can be tracked, counteracted, and investigated. Security operatives tasked with these activities can keep a watchful eye on everything that happens in the railway stations using the Hemisphere SeMSy video management solution. And the most important software components run in the Microsoft Azure cloud, which is operated by the DSB as its IT backbone. This enables all processes, such as systems management, rights and user administration, and also the allocation of computing power to be executed flexibly and from one central location.

Since the components are made available centrally, the operators can also access every one of the 2,500 single sensor cameras as well as all Panomera multifocal sensor systems from there. Each workstation and all user views can be configured individually, so that only the widgets needed for the specific activities are visible. This enables employees to concentrate on their specific tasks without distraction.

Besides classic video management, the modules of the Hemisphere platform enable all pertinent case information such as photos, videos, or witness statements to be collected and recorded quickly and conveniently, and then compiled in a digital incident file. Hemisphere also integrates accurate site plans of the individual locations. Operators and security managers can use this map function to select the camera they need to respond to observed incidents. The operators manage the systems via Dallmeier workstations and a monitor wall consisting of 22 Hemisphere SeMSy vario decoders. Simple, lossless switching to each individual railway station is guaranteed by Dallmeier “PRemote HD”, a routine which uses transcoding to conserve bandwidth and enables access to high-resolution video material even when the internet connection is less than ideal.

“Hemisphere SeMSy replaces or supplements many of the systems used previously by DSB, so it improves the efficiency and quality of our workflow,” said Søren H Nielsen, technical director at DSB. “By combining Dallmeier camera technology, cloud deployment and the Hemisphere management components, we are now in possession of an extremely powerful system which offers far more than standard video management.”

Most of the railway stations in Denmark occupy large areas. Parking areas, shopping facilities and platforms all constitute areas that must be monitored. The difficulties lay in the need to ensure that the high minimum resolution quality for enabling recordings to be used in court (described in DIN standard DIN EN 62676-4) was satisfied over the entire expanse. In the patented Panomera technology implemented by DSB, up to eight sensors with different focal lengths are combined in one optical unit. The result is a total image in consistently high resolution, in which additionally an unlimited number of detail zooms can be carried out both in the live feed and in the recording. In this way, Panomera captures large distances and expanses in real time with a resolution pattern that is consistent over the entire object space – with very few camera systems. This in turn not only ensures that recordings are always usable in court, but it also allows a big chunk of the infrastructure costs compared with conventional solutions to be eliminated.

Danish State Railways employs over 7,000 personnel. Of these, over 1,000 jobs are in administration. Figures of this magnitude entail complex user and rights management challenges in the video surveillance of currently 180 railway stations. Moreover, it is not only the employees but also public authorities such as the Police which are authorised and even required to access the video information system. In this context, it is imperative to be able to maintain an overview of rights assignment for reasons of data protection and data security. Therefore Hemisphere can be integrated in DSB’s User Administration Active Directory.

System updates are another challenge in large-scale environments. In complex projects running for many years, it is imperative to implement a system that allows for incremental updating. In the context of such programmes, it is usually most important for the newly implemented systems to be downwardly compatible. Hemisphere offers the capability of integrating existing systems in a new environment – regardless of the original provider – thereby enabling the customer to migrate incrementally. Comprehensive test phases, such as the Dallmeier “Factory Acceptance Test” (FAT) complete this integration.

“We updated the video management system used by Danish State Railways with the Dallmeier SeMSy III VMS system back in 2016,” noted Torsten Ussing, MD at SCANVIEW A/S. “With the migration to the Hemisphere platform including the new generation of the SeMSy VMS and further modules in 2020, we were able to implement a kind of modular principle consisting of video management, data management and frontend applications. This enabled us, in cooperation with DSB, to ‘compile’ exactly the total solution that met the requirements of the time in cost-optimised manner. At the same time, the many other functions and modules provided mean that we are ideally set up to deal with requirements of the future.”



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