The Research And Design Of Intelligent District Network Integration Based On BACnet

The Integration is the keystone of intellectualized community,it is necessary to integrate the corralation electrical and mechanical equipment and subsystems with the openness and interoperability,that is to say,these equipments and systems must be in accordance with the data communication protocol based on the same standard,but the intelligent community of the automation system communication with field devices,due to the existence of the scene in the production of a large number of controllers and on-site digital equipment from different manufacturers, follows different communication standards,it can only make up of each the controled composition of their software systems and application-specific communication.While some networks may realize the Internet protocol conversion, but the cost is high,the latter is also very troublesome to maintain.Especially,the aspect of remote monitoring and controling is more difficult to achieve together.It raises the question of how to auto-control and mannage the entire area of construction equipment such as:air-conditioning,lighting,electricity,water supply, elevators,fire control.So,the network-based integration on the electrical and mechanical facilities of the dictrict has become an important research.For the situation above,the current prevalence of the major integrated technology mainly based on OPC,LonWork and BACnet to conduct an in-depth analysis and there are the comprehensive consideration of the hardware and software compatibility and scalability issues,this paper presents the integration with BACnet network integration as the Intelligent Community technology.In this paper,BACnet protocol has been analysised and researched in detail, The principles of BACnet protocol,coding,programming,etc are in detail too.The BACnet protocol based on the coding and related procedures designed in accordance with the requirements of the BACnet protocol and developed,at the same time The VTS,it is testing software,tested on the BACnet Testing Laboratory, the test results showed that it is in line with the BACnet Standard.The plan of Intelligent Community was designed in accordance with a common electrical and mechanical equipment.The smart district of the drainage system,the distribution subsystem and the information management sub-system are of the integration.To the drainage system,it applies the MS/TP communications,for distribution sub-system it applies PTP and Ethernet communications,and information management uses the IP communication subsystem.The district of using Visual C ++6.0 language,based on the SQLServer database as a background database was completed,BACnet network as integration technology,put MS/TP,PTP,Ethernet and IP integrated in one system in the smart district.In this paper,the system was being tested in realization,the test results show that the system reached the design objectives and application requirements. Finally,the paper sums up the writer's achievement and analysises the inadequacies of the system,and gives recommendations for it.Based on the BACnet network integration,the technology of Intelligent Community will provide a useful reference for the further development.