Scalable solution for centralized management of distributed properties
To operate buildings efficiently, a direct and automatic interaction of different trades such as lighting, heating and air conditioning, safety systems and fire protection is already state of the art. Often, the requirement for the technical building management also extends over several distributed buildings such as e.g. in the public buildings of a municipality, the branch network of a trade chain, hospitals and nursing homes with more than one building or large hotel complexes. The reasons for networking several buildings and properties are manifold:
Increasing importance of energy efficiency
Approximately 40% of global energy consumption can be attributed to buildings. Not least for this reason, the efficient use of available resources is of great importance. Increasing pressure from legal regulations also makes intelligent energy management and the constant identification of savings potentials indispensable. The advantage of a networked property management lies in the comparability of the consumption of the individual buildings. The high level of transparency of the consumption and operating data enables a holistic optimization of energy use as well as continuous adaptation to changes in user behavior. Excessive consumption or irregularities enable energy optimization through rapid reporting. The goal should always be a cost reduction with the same level of comfort.
Rising cost pressure
Increasing cost pressure is not only a key driver in the networking of buildings through a common building automation system in terms of energy consumption. Thanks to central control via a networked control station, personnel costs can also be minimized. Often a home technician replaces several employees on-call in the on-call service or represents them on vacation or in case of illness. The use of a common user interface (master visualization) not only saves ongoing staff costs, but also reduces the training required.
Around 30% of the life-circle costs of a building account for maintenance and servicing. Networked properties allow for high potential savings in on-demand maintenance, for example in case of failure of lights but also in the preventive, planned maintenance. By operating hour counting in all buildings, the purchase of e.g. Bulbs planned and due to the high amount, a better price can be achieved.
Quick action in an emergency
To avoid damage, rapid intervention, e.g. in case of failure of the heating or cooling system, the shop window lighting or burglary even at night to guarantee. Thanks to the alarm overview of several buildings, a central recording and timely treatment of fault messages with low personnel costs is possible.
Flexible and future-proof
Already during the planning, a subsequent extension of the system or later reallocation of the building should be considered. In addition to expanding to new locations, the integration of existing systems, e.g. GLT be possible. Therefore, it is advisable from the beginning to set a system that the integration of open systems e.g. OPC, KNX, BACnet, Modbus as well as applications from other areas e.g. Security systems (access control, CCTV, ...) supported. Managing several spatially separated and e.g. Wide Area Network (WAN) connected buildings with a networked control room is not only a challenge for the integrator, but also places special demands on the building management system.
Realization of networked real estate with server hierarchy
While many conventional approaches involve direct communication between server and IP gateway, the software solution of NETx Automation Software GmbH provides a connection of autonomous, local servers with a central server at the master level. The use of a server, which through the integration of a variety of interfaces direct communication between the individual trades and applications from other areas such. Safety and Security allows a more flexible and efficient building automation. The resulting benefits can be transferred not only to the building level but also to an entire property portfolio using a server hierarchy. The information from several independently operating sub-servers is integrated via eg WAN into a central server (networked control station). By using VPN connections, the network is protected from external attacks. The self-sufficient servers guarantee smooth operation of the building even in the event of a failure or malfunction of the connection to the higher-level control center. The collected data is then displayed in a common master visualization. To increase the reliability of the building automation system, a redundant solution with a main and a backup server can be used.
The solution described above offers numerous advantages for the operator of networked real estate:
At references you will find realized projects for the specific fields of application.