Airborne passenger cabin core system of dynamic daisy chain looped network and dynamic positioning method

Abstract

The invention discloses an airborne passenger cabin core system of a dynamic daisy chain looped network and a dynamic positioning method. The system includes a passenger cabin interface unit and a plurality of passenger control units, and the passenger cabin interface unit and the passenger control units are mutually connected in daisy chain looped network mode. The passenger cabin interface unitand each passenger control unit obtain equipment information, the obtained equipment information is provided to an external network management system, thereby dynamically generating a network topological graph of connection of the passenger cabin interface unit and the passenger control units, and a mapping table of the passenger control units and seat positions is calculated according to the topological graph, thereby realizing dynamic positioning. The system provided by the invention adopts a looped network architecture, network wiring greatly shrinks, and system reliability is improved. Inaddition, the dynamic positioning method adopts a dynamic network topological graph mode to realize positioning of the passenger control units and seats, thus all wiring is the same, and the workloadof maintenance personnel is greatly lightened.

Description

technical field [0001] The invention relates to a computer network, in particular to an airborne cabin core system and a dynamic positioning method of a dynamic daisy chain ring network. Background technique [0002] The cabin interface unit in the core system of the airborne cabin mainly processes the data of cabin equipment, such as cabin door signal data, water and wastewater signal data, and passenger call signal data, and transmits these data to the cabin human-machine interface. The passenger control unit mainly uses It is used to handle cabin passenger calls, reading light control, non-smoking emergency seat belts and other functions. At present, the communication of the passenger control unit equipment installed on the passenger plane generally adopts RS485 signal. With the development of network technology, the network is used more and more on the plane. Compared with RS485, the communication speed of the network is faster and the bandwidth is larger. However, the ...

AI Technical Summary

Problems solved by technology

The way of inserting pins is used to reduce the tediousness of replacing equipment, but when wiring, each line cannot be wrong, and they are arranged in order, which increases the workload of wiring.

[0004] In addition, in the existing cabin entertainment system, the equipment is mostly combined with separate processing modules and switch boards, which greatly increases power consumption, volume and cost, and cannot meet the needs of the passenger control unit for power consumption and volume

If only the switch board is used and the switch board is used to handle functions such as passenger call control and reading light control, then the resources are not enough, and the ROM space of the general switch is very small, which is not enough to store some internal test (BIT) information of the passenger control unit, and The reading light is slowly turned on and off through PWM, and the switch board lacks sufficient resources

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