Old premises received a modern safety lighting system

There is a valuable store building that was built over 100 years ago, located on the other side of Pitkänsilta in Hakaniemi, Helsinki. This ”Stockmann (a Finnish retailer) for working people”, also known as the ”house for gaining a livelihood” has now been renovated into a modern-day trade- and amusement centre with the help of the real estate investment company Antilooppi Management Ltd., with construction by SRV Yhtiöt plc. The building will be constructed as part of the development of the Hakaniemi Market Square and the surrounding area. The building, known as Siltasaari 10, was opened to the public last autumn.

And of course, where there are people, there must also be exits. Ramboll Finland Ltd., who were responsible for the electrical wiring design of the renovation, chose Exilight’s guide- and safety lighting systems. These systems fit excellently into the old premises because they are easy to install (which makes installation fast) and have low-current cabling. The safety lighting of Siltasaari 10 is based on Exilight’s addressable ESC-200-system, which has over 1500 guide- and safety lights connected to it.

An IoT-based emergency lighting system that is flexible at every stage

Text: Antti Leikas | Photos: Skanska

Lippulaiva (Flagship) sails for Espoonlahti

The construction of the Lippulaiva shopping centre began in 2020 and will be completed in 2022. The property will contain over 100 different types of business premises and the new Espoonlahti regional library. In addition, a commuter bus terminal and Espoonlahti’s new metro station (to be completed in 2023) will be located underneath the shopping centre. Lippulaiva’s yearly visitor count is estimated to be 8 million people once the property is completed, which, on average, is equivalent to over 20 thousand visitors per day. In an emergency, all visitors need to be guided safely out of the property.

A wireless solution leaves more space

I have designed the emergency lights of Pasila’s “Mall of Tripla” in which the traditional system was used where you could connect 100 luminaires to the control centre. In order to preserve flexibility, only 70 luminaires were used, because there had to be reserves in case of any changes”, says Hyvönen. “The emergency lighting system for Lippulaiva is EXIoT. In EXIoT, the data is transferred wirelessly between luminaires. In addition, the chosen luminaires have battery units, so it is straightforward to design their wiring.”

An IoT-based system does not set any upper limit to the number of luminaires, so in practice, the system can essentially be enlarged endlessly. “A solution like this is the most optimal for a shopping centre”, says Reijo Hyvönen. “The flexibility of the system is retained even if the layout is changed. There will not be a situation where it is necessary to add a new switchboard.”

The contractor approves the system

If the system is not flexible, the contractor always blames the designer for that”, says Hyvönen. “This has not happened with EXIoT. First, a simple wiring scheme and luminaires are installed. When the luminaire is turned on, this will be indicated on the computer screen.”

The same length as the container ship “Ever Given”

Espoo’s Lippulaiva is the length of the container ship “Ever Given” (the 400-metre-long ship that recently blocked the Suez Canal). The length is challenging for wireless networks, but an advantage of EXIoT in this kind of large property is a mesh network, which is independently formed between luminaires. It means that the network reaches as far as there are luminaires. Luminaires with battery units notify themselves when there is a need for maintenance or when the battery is running out, so the only property maintenance task is to react to the notifications. “Monitoring can be carried out from anywhere, in a centralised way”, says Palle Rökman from EXIoT. By contrast, “a system implemented with traditional technology can have tens of control centres.”

Initialisation is also done in stages

Everything can be done in stages in a wireless IoT-based system; design, installation, as well as initialisation. The system is completely neutral to the addition of new luminaires. After the system has been installed, connecting new luminaires is simply done by turning them on”, says Rökman. “I know that this sounds almost too easy, but this is how it works.”

Finnish Institute for Health and Welfare (THL), Helsinki

The construction of the new Building K for the Finnish Institute for Health and Welfare (THL) has been completed on Mannerheimintie, Helsinki. The new construction will house, among other things, the forensic autopsy functions and the laboratory of histology, forensic toxicology and forensic genetics as well as common facilities that serve the campus area. Exilight supplied the state-of-the-art EXIoT emergency lighting system for the site. The system utilises wireless communication between addressable luminaires, and the operation of the emergency lighting can be remotely monitored.

As the EXIoT system uses wireless communication, it is very flexible and easy to modify and implement gradually as the work progresses. It is not necessary to complete the entire system at once, and it is easy to add new luminaires to the system at a later stage. The system does not have a maximum number of luminaires; therefore, when adding new devices, there is no need to worry about group or luminaire limits as is the case with a conventional emergency lighting switchboard.