A-SMGCS滑行道冲突预测与避免控制

Conflict Prediction and Avoidance Control for A-SMGCS Taxiway

针对先进机场场面引导与控制系统(Advanced surface movement guidance and control system,A-SMGCS)滑行道冲突预测与避免控制,提出基于事件反馈的闭环控制框架,并重点解决对头冲突预测与避免控制问题。建立滑行道受控着色Petri网模型。提出航空器可控滑行路段概念,并给出其对应子模型的生成规则。利用子模型中环路和环路链,给出无对头冲突的充分必要条件。提出对头冲突避免控制策略,以及适合实时控制的对头冲突预测与避免控制算法。算例表明本文能根据场面状态及时识别对头冲突并实现冲突避免。

The closed loop control architecture based on event-feedback is proposed for conflict prediction and avoidance control of advanced surface movement guidance and control system（A-SMGCS） taxiway.The head-on conflict prediction and avoidance for taxiway is investigated intensively.Controlled colored Petri net model for taxiway is constructed.The controlled taxiing route segment concept is preseuted,and rules for generating related sub-model are provided.Using loops and loop chains contained in the sub-model,the sufficient and necessary condition for head-on conflict-free operation of taxiway is presented.The avoidance strategies and real time control algorithm for head-on conflict prediction and avoidance are proposed.The example demonstrates that the proposed strategies can identify and avoid head-on conflict on taxiway in time by monitoring the surface state.