| For now, the Airport Energy Management System has taken bridge-borne equipments management as part in western developed countries. The system can collect equipments information including bridge-borne units' energy consumption and online running condition. Currently the airports having pre-assembled bridge-borne devices just rely on manual reading and artificial signing to implement energy metering. This results in waste of human resources,imprecise energy metering and billing. It also does not have quantitative energy saving effect evaluation and remote status monitoring service.The Bridge-borne Equipments Management System(BEMS) is mainly to acquire and transmit field data produced during equipments service, and provide financial statements for customers by collected data and charging model about aforementioned issues. That charging model is summed up by large research. On the basis of the type testing, take part in designing and implement programs to accomplish field data collection, transmission and backup functions. The programs reference to C# program on the platform Win CE.NET, analyzing DL/T-645, Modbus and other network protocols that contain equipments' service status, working conditions and equipments failure information. The field installation and operation results show that the system can take use of on-site data to remotely monitor equipments operating status and provides users with accurate measurement data.At the end, the BEMS concerns about wireless transmission network based on Zig Bee/IEEE 802.15.4 for issues of fault data acquisition. Taking into account of future and possible needs to join other wireless devices into the network, the BEMS may call throughput problems and put forward the time slot segmentation and allocation with Greedy algorithm to increase GTS throughput in the same propagation delay. OPNET simulation experiment is used to validate the idea. |
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