精简仓库结构并增强任务链路:归档双目可选后端、新增LOS判据与自定义返航
归档 legacy/:stereo_yolo/stereo_ranger/target_tracker 三包 + 175 条测试 + demo/配置/权重/三份规格;运行链路不再依赖,默认 pytest 446 条,归档测试按需运行。 目标有效性第二判据改为 LOS 运动学一致性(pod_bridge/los_consistency.py),删除 require_vision;pod_locked() 叠加该判据,状态机随之后退重搜。 自定义返航(task_runner/return_home.py):保持转场高度回起飞点 → 恢复初始航向 → 垂直降落,不再爬 RTL_RETURN_ALT;未起飞/无起飞点/超时/异常仍退回 PX4 原生 RTL。 任务链安全兜底:主循环异常→紧急返航、stop 幂等、landing_stop 保留遥测、in_air 流复用+超时、解锁/起飞与吊舱识别仅执行一次、rtl_timeout 上限。 入口共享件拆到 utils/sitl_support.py;pod_sitl_test.py→l1_sitl_test.py;删除旧架构 test.py;相机脚本移入 tools/。 新增 .gitignore 并剔除历史误跟踪的 59 个 .pyc;requirements 按实际依赖重写;文档全面对齐,新增 legacy/README.md 与 tools/README.md。
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"""一致性监控(§6.7):时序层面质量自检,每目标独立状态。
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机载激光移除后无外部距离基准,飞行中只能靠自身时序一致性监控数据质量:
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**只能降级、不能纠偏**(绝对精度靠地面静态验证)。匹配层面的质量(|Δy|
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残差、框高一致性、代价门限)由匹配硬约束承担,本节只管时序层面。
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"""
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from dataclasses import dataclass
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from typing import Dict, Hashable, Optional
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@dataclass
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class ConsistencyStatus:
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"""单目标单帧一致性判定结果(§6.7)。"""
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jump_px: Optional[float] # |D − 上次 D|;首帧无参考为 None
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abnormal: bool # 本帧是否跳变超门限
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streak: int # 连续异常帧数(含本帧,正常帧清零)
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confidence_degraded: bool # streak ≥ N:置信度降级
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invalid: bool # streak ≥ M:质量语义判无效
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class ConsistencyMonitor:
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"""每目标:上次视差 + 连续异常计数(§11.1 必须持久化的状态)。"""
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def __init__(self, jump_px: float, degrade_frames: int, invalid_frames: int) -> None:
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if jump_px <= 0.0:
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raise ValueError("jump_px 必须为正")
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if degrade_frames < 1:
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raise ValueError("degrade_frames 必须 ≥ 1")
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if invalid_frames < degrade_frames:
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raise ValueError("invalid_frames 必须 ≥ degrade_frames")
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self._jump_px = jump_px
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self._degrade_frames = degrade_frames
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self._invalid_frames = invalid_frames
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self._last_d: Dict[Hashable, float] = {}
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self._streak: Dict[Hashable, int] = {}
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def advance(self, key: Hashable, disparity_px: float) -> ConsistencyStatus:
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"""推进目标 key 的一致性判定(配对成功帧每帧一次)。"""
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last = self._last_d.get(key)
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if last is None:
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jump: Optional[float] = None
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abnormal = False
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streak = 0
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else:
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jump = abs(disparity_px - last)
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abnormal = jump > self._jump_px
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streak = self._streak.get(key, 0) + 1 if abnormal else 0
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self._last_d[key] = disparity_px
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if streak:
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self._streak[key] = streak
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else:
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self._streak.pop(key, None)
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return ConsistencyStatus(
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jump_px=jump,
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abnormal=abnormal,
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streak=streak,
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confidence_degraded=streak >= self._degrade_frames,
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invalid=streak >= self._invalid_frames,
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)
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def streak(self, key: Hashable) -> int:
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"""目标 key 当前连续异常计数。"""
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return self._streak.get(key, 0)
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def drop(self, key: Hashable) -> None:
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"""清理目标 key 的状态(目标老化清理时调用)。"""
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self._last_d.pop(key, None)
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self._streak.pop(key, None)
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def clear(self) -> None:
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self._last_d.clear()
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self._streak.clear()
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