Case Story: Järvenpää’s Social Service and Health Care Center
It was worth to try the solution offered by Orbis
Järvenpää city with 40 000 inhabitants have decided to be a pioneer in the social service and health care reform in Finland: the new Social and Health Center combines at least ten separate units under one roof. The building has been recognized by its customer focused design. It also contains the latest technology in solution for Indoor Coverage. Orbion Consulting managed this solution, both design and construction.
Almost finished Center will soon open doors for employees and almost thousand clients. Still open ceiling tiles reveal the huge number on cables and technology needed for the functionality and safety of the Social Service and Health Care Center.
Heikki Kankkunen from Orbion, the indoor coverage system designer and senior consultant. Broadband Indoor Radio Network installed by Relacom covert TETRA and also all other mobile operators in one physical network. “There is a coordination, so different devices do not interfere with each other” says Kankkunen. “Even the LED lamps can make interference on the radio frequency.”
Conflicts within the requirements
Since 1987 Kankkunen has been working with RF technology and he probably knows better than anyone else about implementation of an indoor coverage network as well as the requirements behind the solution. “According to the architects plan, the big antennas should not be sticking up from the ceilings” – remembers Heikki.
"On the other hand, the broadband network requires them." Orbis provided an antenna pattern which was possible to install discreetly in the ceiling by the mounting structure, so that the emerging section of the antenna is not bigger than a surveillance camera. "The architect was reportedly very happy," smiles Kankkunen.
The other requirement was an absolutely reliable TETRA network in every corner – including corridors and cellars. The Center’s personnel will use TETRA as a daily tool. In addition, TETRA’s coverage is also required for the Emergency services. “No client is allowed to enter the building before the fire inspection is approved,” says Kankkunen, who has examined hundreds of measurement results. “The complete solution was tested and TETRA works perfectly in every place – also in elevators.”
On the opposite site of the coverage requirements there are regulations from authorities. Because Tukes (Finnish Safety Agency) defines maximum radiation of a system, challenges in coverage cannot be solved only by increasing the power. “Compared with the fixed cabling, the planning of a wireless data transmission is closer to probability theory,” – says Kankkunen. “The final result can be never perfectly predicted.”
The lead walls of the Health Center created also difficulties. Fortunately, Kankkunen has a wide experience with healthcare sites, so that surprises were avoided also this time.
The economic solution
Both the commercial mobile phone and the Public Authority network’s backbone in the building are base stations of three mobile operators (DNA, Elisa, TeliaSonera) and TETRA. The power from base stations is distributed by passive dividers to the antennas mounted in different floors and staircases. The parking hall in the basement is operated by a leaking cable.
“One multi-operator network which also covers TETRA, cut significantly the costs of installation and maintenance compared to separate networks,” tells Kankkunen about the benefits of the broadband system. “In addition, network that extends up to 2.6GHz frequency is designed to covert the future requirements without any modifications.”
Kankkunen has a clear opinion about the role of high quality components. “The RF network is just as bad as the worst component in it,” he says. “If just one part in the installed network does not work, it is not possible to come afterwards to fix it in a house which is otherwise fully in use.”
The consulting partner
Kankkunen has a wide experience and knowledge about design and implementation of indoor networks. The components for Järvenpää’s center he chose from the Orbis’s product portfolio, because he appreciates the wide assortment, quality products and a good knowledge of their use in practice. “Good products and a good customer service is the Orbis’s trump,” he says. “You can call them any time and the question will always be answered.”
Valuation continues to the other side of the table, so that Orbis sees itself to be more than just a supplier for companies such as Orbion Consulting. “Co-operation with Kankkunen is not so much a selling process, but we share product knowledge and technical support,” says Jukka Korhonen, Account manager from Orbis. “We want to stand out as a key partner, who openly tells about what you can make of the products and for what they are suitable – also where they are not.”
One special feature of Järvenpää’s Center is that building was completed ahead of the schedule and under the budget. Korhonen from Orbis is proud of picking up the right components for the Indoor network solution. “From the application we receive valuable knowledge about the functioning of the components for designer, installer and for us,” he describes. “We provide the feedback also for our manufactures, so that everyone makes benefit.”
Also Heikki Kankkunen from Orbion Consulting is satisfied with a successful project. “During a year I had time to control model installation, inspections and measurements,” he remembers. “The result shows that this special solution from Orbis was a completely right decision.”
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