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Honeywell technology (based on the BACnet standard) was used at the German stadium Frankenstadion Nuremberg
Independent power supply lines for utility systems and emergency power generators ensure the continuity of the stadium's power supply. For ecological and economic reasons, all heating systems in the stadium are connected to equipment located in the building next to the Stadionbad swimming pool. A special room for managing the stadium's various engineering systems is located in the southwest corner of the stadium building. This Honeywell technology creates the highest possible comfort conditions at the stadium with low operating and maintenance costs for the stadium's utility systems and ancillary facilities. Approximately 2,500 measurement points for physical parameters are linked by the open Honeywell Enterprise Buildings Integrator™ (EBI) platform. The systems are networked using 11 BACnet Honeywell Excel Web Automation Stations, while the lighting in the hotel rooms and the Max-Morlock-Stuben bar is controlled via EIB buses. The M-bus of the Stadionbad swimming pool heating system supports energy management. The Honeywell EBI system ensures the safe operation of the stadium's utility systems, as well as regulates energy consumption and controls the operation of automation systems. This system can be upgraded to integrate the management of stadium security systems.
Use of innovative technologies based on the BACnet standard at the University of Rostock
The company Kieback & Peter created the basis for the use of an open system in the automation of utility systems at the University of Rostock.
In order to improve the efficiency of the various automated utility control systems, the university administration decided to use a centralized control technology for these systems based on the BACnet standard. The operation of new and existing systems should be monitored and controlled from a single center, while the expansion of existing systems should have a minimal negative impact on their operation. Kieback & Peter created the basis for using an open system for the automation of utility control. The previously existing utility control system in the university buildings, Photon GLT, was modified and expanded by using the BACnet interface. The modernization and expansion of the control system took place in several stages. Thanks to its integration with the university computer network, the operation of the utility control system can now be monitored and controlled from any personal computer using the TCP/IP protocol. Thanks to the use of the BACnet interface, all control systems were interconnected and turned into a higher-order control system.
The system currently includes 22 buildings and contains around 30,000 data points. The integration of the various systems into a single system has made the management of the university's utilities more reliable and efficient. The operation of the utilities can be easily monitored, controlled and optimized 24 hours a day from a single control center. The central GLT station is located in the computer room of the campus surveillance service.
Darmstadt University of Technology as a Model for Reform and Innovation
Sauter-Cumulus GmbH won the tender for the supply of a SCADA automation system with an «integrated BACnet client». The customer specifically requested that the upper control level use an OPC server and an OPC client instead of BACnet. Most of the buildings of the Darmstadt University of Technology are located in two locations: in the city centre, where the control centre with Sauter's novaPro open control system is installed, and in the Lichtwiese complex on the outskirts of the city, where, among other equipment, new DDC devices of the EYK 300 type, which use the BACnet standard, are installed. Data transmission takes place via a local Ethernet network, which is administered by the Darmstadt University IT service. Since the DDC and the control system are located in different segments of the Ethernet network, it is necessary to use BBMD devices (BACnet Broadcast Management Device); the BBMD functions are completely implemented in software at both levels. In order to limit the volume of traffic, standard Ethernet routers block so-called broadcast messages, i.e. messages intended for all users connected to the network. However, such messages are one of the key elements in the transmission of information according to the BACnet standard. Using so-called BBMD routers, these messages are first compressed and then decompressed again in other network segments.
Eurohypo, headquartered in Frankfurt am Main, praised the integrated
solutions
The Eurohypo headquarters building marks a milestone in the development of open systems. The new principles of utility management used here create new possibilities for building management. The headquarters building of Eurohypo Aktiengesellschaft in Eschborn, near Frankfurt am Main, which is designed to accommodate 1,200 employees, was built in record time – less than two years. The control and monitoring functions of all utility systems in this building are integrated into a single open system based on BACnet, LonWorks and OPC interfaces.
The initial design approach for this building was traditional. It included separate control systems for all utilities, based on LonWorks technology. Siemens Building Technologies managed to convince both the building owner and the utility operator of the benefits of using a fully integrated solution. The key feature of this concept is the connection of all utility equipment to an open control system, which allows monitoring and control of this equipment from a single central location. The entire system is based on open standards. More than 5,000 data points are used to measure physical parameters to monitor and control the system; all these functions are automated thanks to the built-in support for the BACnet interface.
This article was prepared using materials from BACnet Europe Journal (No. 2, 3, 4) |
