Building management systems

    It is not a waste of words saying that the cheapest energy is saved energy. This is maybe one of the reasons why we can hear more and more about so-called intelligent buildings where the control of building functions is given to a computer system installed in the building.

    Building management systems in intelligent buildings offer direct savings mainly in the form of decreased energy consumption e.g. by the control of heating, cooling, air-conditioning, or lighting. They give prompt and clear information about the state of controlled systems or their possible failures. By use of special weather-stations, systems can get information about the speed and direction of wind, outside temperature, intensity and direction of solar radiation, and respond flexibly and in advance to changes in outside conditions.

    A modern intelligent building must include control systems and technologies which are inter-connected and cooperating with each other so that they offer::

  • comfort, safety and healthy environment for people living and working in the building,
  • savings of energy and operating costs for building owners,
  • simple control and service,
  • complete overview of the status of current processes in the building.

    The control of building functions can be achieved by using electronic regulation and computer system. It is possible to control these functions:

  • Energy regulation of heating and regulation of temperature in individual rooms ensure the optimal consumption of heating media (gas, electricity) and allow to adapt the value of temperature according to your needs. In summer the system enables to control air-conditioning units as well.
  • Automation functions for blinds allow the automatic moving and turning of all kinds of blinds (outside, inner-window, inside) to positions which protect rooms from direct solar radiation thereby increasing comfort in them.
  • The automation of lighting control allows the regulation of lighting in dependence on the movement of persons in rooms, on time, as well as on outside lighting (daylight).
  • "Intelligent" safety electrical circuit allows you when leaving your house to switch-off power supply while keeping some important devices (refrigerator, phone, security system, PC, or video recorder) switched on. This way there is no possibility that other appliances (iron, curling iron, cooker,...), which could cause fire or some other accident, are left switched on during your absenc.
  • Controlled switching on and off for electrical appliances and lighting allows you to take full advantage of possibilities offered by a modern control system and provide every day comfort in your house, apartment, or office.

    If you happen to have desire for comfort provided by an intelligent building control system, or if you want to save energy and thus mainly your wallet through using a control system for intelligent building, you are on the right place.

Our company offers for you:

  • heating energy regulation and individual room control,
  • air-conditioning control,
  • control of lighting in rooms (zone control of lights, control in dependence on movement of persons, control in dependence on outside lighting),
  • control of blinds in dependence on solar radiation,
  • intelligent electric installation.

Selected reference applications

Presidential apartment in Hotel Carlton, Bratislava

    Company APLIK created a system for controlling lighting and blinds for the presidential apartment. The control of lighting is based on a system from Legrand Slovakia, s.r.o. The control system was designed and programmed so that it is possible to control lights from different locations and select various lighting scenes. It is also possible to control some lights by a remote control from the bed or sofa. Some lamps illuminate paintings and niches on the walls in order to create cozy atmosphere in the apartment. Window blinds can also be controlled by the remote control from the bed or TV sofa. The control of blinds is of course added with an anemometer monitoring wind intensity. In dependence on the wind intensity the blinds are moved up or down. When the wind is very strong, the system automatically moves the blinds down to protect people from breaking window glass as well as to save energy


Intelligent electric installation TAC for SLSP, Bratislava

    In the whole building, company APLIK set up an intelligent installation controlled by a TAC system from company Schneider Electric. We made the mounting and connection of devices (temperature sensors, valves, condensation sensors) which assist in controlling the heating or cooling in each office and in other places in the building. We installed motors which automatically control blinds in each office depending on solar radiation. We connected ceiling presence sensors which monitor the movement of people in offices and corridors. Based on the evaluation of movement the control system is able to switch off or change the intensity of lighting in the zone. We also connected floor and ceiling heating units (fancoils) which control and regulate the heating in each office. In each office we installed wall modules using which people can set the room temperature +/- 3 C from the centrally set temperature in the building. In the whole building we installed dampers for the ventilation and fire system. We installed all devices for boiler and chiller rooms (motors, pumps, sensors, valves, dampers, humidifiers, ...). We connected the intelligent installation on the side of devices as well as side of control system in the switchboard. Finally, we assisted in commissioning the whole building.


Energy dispatching PSL in Považská Bystrica

    A Modicom Premium control system processes I/O signals and collects data from each power substation and gas infrared heater. There are 3 power substations R11, R12, ENERG2. Power substations R12 and ENERG 2 communicate with PREMIUM in substation R11 through a TWDLMDA20DTK programmable controller. The TWDLMDA20DTK programmable controller processes I/O signals from each substation. It processes these signals and consequently sends them using a serial communication link RS 485 and Modbus protocol to the Premium control system. Premium processes all received I/O signals and provides this data for the next processing to a supervisor station (PC) through an ETH module and ETHERNET communication link. The supervisor station consists of a PC and Vijeo Citect visualization where data is displayed and archived in an SQL database. The supervisor station also processes data from gas boiler-rooms (PK1, PK2, PK3, PK4, PK5). The control system for boiler-room is based on a TAC system. Each gas boiler-room communicates with the supervisor system through a TAC 901 communication module which sends data from the LON network to the supervisor station (PC). With the help of TAC Vista server the supervisor station processes received data and consequently sends it to the visualization which in turn processes received data and displays it on relevant screens.

    The Premium PLC is programmed to provide an energy regulation in PSL. The task of Premium PLC is to compare the quarter-hour energy consumption maximum with actual quarter-hour consumption of power in PSL. The Premium PLC must ensure that the value of actual consumption of power does not exceed the quarter-hour energy consumption maximum. If the actual consumption of energy is about to cross the quarter-hour energy consumption maximum, the Premium PLC automatically switches off some equipment thereby slowing down the increasing consumption of power in PSL. This means that the Premium PLC ensures the regulation of power consumed in PSL. The Premium PLC also contains a WEB-server card which allows actual data to be available on internet, thus enabling to check the actual state of power part of PSL outside the PSL company.

    The visualization installed on a remote PC (in the Control Centre) provides for monitoring values from the whole PSL. The visualization displays actual values relating to the quarter-hour regulation, values for all gas infrared heaters, and values for 5 gas boiler-rooms. Most of the values in the visualization are not only displayed but they can also be changed thereby influencing the remote control system (Premium, TWIDO, or TAC) from the remote location. In addition to checking actual values, in the visualization there is possibility to view graphically some values from the quarter-hour regulation in the form of a continuous graph. In this trend graph it is possible to look at the history of these values. The visualization is connected with a database and this way it is possible to archive data on the PC disk. Then there is possibility to generate reports (daily or monthly) from this database e.g. for the purpose of statistics.

    The quarter-hour regulation, control of gas boiler-rooms, as well as control of gas infrared heaters have their own central control which can be influenced directly from the visualization in the Control Centre independently for each gas infra red heater or gas boiler-room. 


Connection topology in PSL is as follows:

PSL connection diagram