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Case study

MOBOTIX surveillance system ensures safety for Erfurt housing cooperative in Germany
TELEGANT has been actively working in the field of electronic security and entry control systems since 1990
TELEGANT developed an easy-to-use, but comprehensive surveillance system especially for residential complexes

During the German Democratic Republic (GDR) times, enormous housing complexes often sprang up overnight - buildings that in their original condition today would be neither architecturally appealing nor offer tenants an attractive environment in which to live. However, it does not have to be this way, as proven by the residential complexes at Györer Straße 1-4 and 5-7 in the north of the Thuringian regional capital of Erfurt. After the fall of Communism, the buildings were modernised to the latest standards with regard to insulation, plumbing, windows, elevators and external look by the "Erfurt" Housing Cooperative ( Balconies added to the south side of the building have significantly increased the housing quality of the one to four-bedroom apartments. Residents can now enjoy the fresh air while looking out over the spacious and carefully maintained green areas.

However, many of the 1,500 tenants and members of the cooperative were not entirely satisfied with their homes. The tenants often had to live with disruptions to the community's peace caused by homeless people sleeping in the cellar, graffiti scrawlings, car break-ins, doorbell pranks, night-time noise, newspaper theft from mailboxes and many other incidents that are practically unavoidable in housing units of this scale without suitable countermeasures.

Security creates trust

For some time, the cooperative had been using video surveillance in a similar building complex to improve the actual and perceived safety of the tenants. However, the quality of the analog camera technology that was used there was not satisfactory - it was inflexible in its application, complicated to operate and unreliable in operation. The new concept presented by MOBOTIX-Secure-Partner TELEGANT GmbH from Jena ( quickly convinced the decision-makers at the "Erfurt" Housing Cooperative. Optimum user benefits, low operating costs and excellent value for money helped to close the contract. TELEGANT has been actively working in the field of electronic security and entry control systems since 1990 and is certified by VdS Schadenverhütung (an independent testing and certification institution for loss prevention) as an installation company for security systems.

The concept

Each of the two housing blocks at Györer Straße 1-4 and 5-7 received a porter's lodge, which is manned by a member of staff from a surveillance and security company 24 hours a day on a weekly alternating basis. The porter is provided with a full view of the entrance area by innovative, IP-based megapixel camera technology from MOBOTIX. The TELEGANT Concierge Video Monitoring System which is based on this technology would not be possible with conventional analog video solutions. That is why TELEGANT developed an easy-to-use, but comprehensive surveillance system especially designed for residential complexes.

The monitor image shows the layout of both buildings and small surveillance images are displayed on the screen at each of the camera locations
Surveillance focal points are the entrance doors and the main hallways behind them

The basic concept was developed by TELEGANT's Managing Director Michael Rodmann and then optimised in cooperation with the "Erfurt" Housing Cooperative. The technical potential of MOBOTIX camera technology, the individualism and ambition of an entrepreneur and the experience of a housing construction company make such a sophisticated system possible – one that allows as much freedom as possible but also performs as many surveillance tasks as necessary. For the housing industry, it is an ideal platform for increasing the attractiveness of its properties. The Mitteldeutsche Rundfunk MDR (Central German Broadcasting Station) reported in detail about this project in a film report. The overwhelming majority of the people interviewed confirmed: "We feel safer and happier with a porter and camera surveillance." This comes as no surprise since the porters not only ensure the safety of their residents but also perform a host of additional services: accepting parcels and repaired items, selling newspapers, stamps, public tansport tickets, sending faxes, photocopying, watering plants for residents while they are away, emptying their mailboxes, and much more. In this way, they make life easier for working people and are also a permanent point of contact for the elderly. The circumstances that were complained about have rapidly decreased as a result of these measures, which have naturally contributed towards acceptance of the measures in place.

Cameras in critical places

The TELEGANT project manager, communications electronics engineer Dennis Nitschke, installed nineteen M22 Secure cameras both indoors and outdoors in carefully selected locations and a D12Di-Secure camera in the porters' lodges. Surveillance focal points are the entrance doors and the main hallways behind them, the elevator doors on the ground floor, the front and rear of the buildings and the mailbox areas. Each porter's lodge is fitted with identical technology, consisting of a PC with an alarm memory and flat-screen monitor. The monitor image shows the layout of both buildings and small surveillance images are displayed on the screen at each of the camera locations. If one of the freely-definable alarm criteria, such as movement or sound, occurs in the image, a red flashing frame notifies the member of staff from the security service. With a single mouse click, they can display the relevant camera image as a full-screen picture and react accordingly. The image or sequence of images is simultaneously recorded for later analysis, which in one instance has already helped towards solving a crime.

Intercom included

When it came to implementing the functional requirements, Dennis Nitschke added some useful features to the system. The speakers installed in all cameras can e.g. be used for targeted announcements by the security guard. At the touch of a button, postmen and residents can register themselves at the entrance doors and be let into the building via the electric door opener. This feature is also enabled by the MOBOTIX camera in combination with an additional module specially developed by TELEGANT.

The outstanding sharpness of the camera images means that people can be easily identified. In cases of doubt, a brief conversation between the person and the porter via the camera can quickly clarify the situation. Incidentally, these functions are entirely possible via the built-in features in the high-resolution MOBOTIX cameras at minimal additional cost. High-performance solutions of this kind are simply impossible with conventional analog camera technology.

This solution, which is specially tailored to MOBOTIX network cameras, offers a particularly high level of system stability through its redundant design

Network with wireless integration

A particularly challenging task in the project was connecting the two separate building complexes. Networking them together with twisted-pair cables would only have been possible at great technical and financial expense. Therefore, the decision was made to use a reasonably priced and reliable WLAN radio bridge which links both building networks together into one system without compromising performance. The possibility of supplying power to the cameras via the Ethernet (Power over Ethernet: PoE) was seen as particularly convenient - which is where the highly reliable power racks developed by TELEGANT came into use. This solution, which is specially tailored to MOBOTIX network cameras, offers a particularly high level of system stability through its redundant design.

Thanks to PoE, savings can be made on cabling costs, while the low power consumption of the cameras also makes for much lower electricity bills throughout thesystem's lifetime. The administration software which is provided free of charge by MOBOTIX is yet another good reason for choosing the cameras.

Satisfaction All Round

Everyone involved is extremely satisfied with the solution that has been found. The “Erfurt“ Housing Cooperative is especially pleased as it now has a solution for increasing safety in its leased properties in Györer Straße at comparably low costs. The system can even be extended at a later point if required. The result is increased value and acceptance of the properties through a greater sense of contentment among the tenants.

One of the porters, Hartmut Wiegand, was impressed how, as an almost computer illiterate, he was still able to use and operate the system without difficulties. TELEGANT has been able to sharpen its profile as a competent system partner that has impressively "refined" the sophisticated high-end camera technology from MOBOTIX into a solution tailored to its customers. With this reference project, the company has encountered wide interest in the housing industry. And now that they have more security in their home environments, the residents certainly feel much happier than before.

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