Building automatic control system based on building automatic control network (BACnet) and European installation bus (EIB) protocol

Abstract

The invention discloses a building automatic control system based on a building automatic control network (BACnet) and an European installation bus (EIB) protocol and a dual-protocol conversion method thereof. The building automation system consists of BACnet subnets connected through Routers or network bridges, EIB bus subnets connected through BACnet / EIB gateways and a BACnet monitoring center. The gateways are respectively connected to BACnet / multi-service transport platform (MSTP) subnets and the EIB bus subnets through MSTP modules and EIB bus coupling units. Gateway software consists of a BACnet message analyzing unit, an EIB message analyzing unit and a BACnet / EIB protocol conversion unit. The BACnet / EIB protocol conversion unit comprises a dual-protocol address conversion module, a dual-protocol advanced configuration and power interface (APCI) conversion module, a dual-protocol application program data conversion module, a dual-protocol address contingency table and a dual-protocol APCI comparison table. The BACnet / EIB gateways integrate the EIB into the BACnet, and two types of building automatic control protocols complement each other's advantages to enable the building automatic control system based on the EIB and the BACnet to have excellent cost performance.

Description

technical field [0001] The invention belongs to the technical category of building automatic control, in particular to the building automatic control technology based on BACnet and EIB protocols and its dual-protocol conversion method. Background technique [0002] In the field of building automation, BACnet and EIB protocols are two mainstream international standards that have won wide recognition and application. [0003] The European Installation Bus (EIB) was first proposed by Siemens, ABB and other companies. The EIBA established in 1990 is the management organization of EIB. In 2010, the global registered members of EIBA exceeded 400; At present, it has occupied 80% of the European building automation equipment market. In 1999, the KNX / EIB protocol was proposed based on EIB and drawing on the advantages of the configuration modes of the other two European building automation protocols (BatiBus and EHSA). In 2003, KNX / EIB was included in the European standard EN50090;...

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Problems solved by technology

[0009] The above beneficial exploration points out the technical route of BACnet, EIB connected to the Internet, and BACnet connected to Profibus. However, there are still limitations in the exploration results, and it has not yet involved the interconnection and integration of different building automation protocols with their own strengths. It is necessary to use existing research results Based on in-depth research and innovation

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