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-1.627631425857544, "max": 0.9194102883338928, "mean": -0.08111531103495509, "n": 10, "min_t": 3.041868332, "max_t": 0.542275156 }, "fcw": { "min": 0.0, "max": 0.0, "mean": 0.0, "n": 10, "min_t": 0.040922708, "max_t": 0.040922708 }, "ttc_s_threshold": { "points": 0, "max_run_s": 0.0, "first_t": null }, "thw_s_threshold": { "points": 0, "max_run_s": 0.0, "first_t": null }, "thw_moving_s_threshold": { "points": 0, "max_run_s": 0.0, "first_t": null } } }, "transitions": { "driver_brake_on": [ 2.2999 ], "driver_gas_on": [ -1.4, 0.7001, 4.2003 ], "driver_steer_pressed_on": [ 1.0007 ], "control_lat_active_off": [ 0.024 ], "control_long_active_off": [ -1.3742 ], "cruise_off": [ 0.0 ], "driver_flags_at_first_record": { "brake": 0.0, "gas": 0.0, "steer_pressed": 0.0 } }, "quality": { "radar_large_distance_jumps_s": [], "radar_target_loss_s": [ 3.237334895 ], "video_precontext_s": 10, "source_sampling": { "vehicle": { "rows": 200, "median_step_s": 0.10015989600000008, "max_gap_s": 0.10106275999999959, "start_relative_s": -9.999530257, "end_relative_s": 9.899991507 }, "control": { "rows": 200, "median_step_s": 0.10008671800000002, "max_gap_s": 0.10150374999999912, "start_relative_s": -9.975644788, "end_relative_s": 9.924115934 }, "controller": { "rows": 200, "median_step_s": 0.10009005199999965, "max_gap_s": 0.101491459, "start_relative_s": -9.975789423, "end_relative_s": 9.923980777 }, "radar": { "rows": 80, "median_step_s": 0.24997994700000015, "max_gap_s": 0.251850052, "start_relative_s": -9.762248955, "end_relative_s": 9.989227236 }, "model": { "rows": 40, "median_step_s": 0.4999898959999989, "max_gap_s": 0.5015995830000008, "start_relative_s": -9.96329359, "end_relative_s": 9.537277496 }, "plan": { "rows": 40, "median_step_s": 0.5000352080000008, "max_gap_s": 0.5015484890000002, "start_relative_s": -9.958032861, "end_relative_s": 9.542504319 } }, "alignment": "0.05秒公共网格，向后取最近已记录值；容差为各流采样周期1.6倍，限于0.035至0.5秒；不插值。原始采样统计另算。雷达距离与相对速度汇总仅用目标有效记录。", "threshold_duration_method": "仅连续命中的CSV记录组成一段；任一不命中/缺失值或超过该窗口中位采样间隔1.6倍的时间缺口均中断。时长按末点减首点加一个中位采样间隔近似，非逐帧危险持续时间。" }, "timeline": [ { "t": -10.0, "speed_mps": null, "accel_mps2": null, "steer_deg": null, "steer_torque": null, "brake": null, "gas": null, "steer_pressed": null, "cruise": null, "speed_kmh": null, "cc_enabled": null, "lat_active": null, "long_active": null, "left_blinker": null, "right_blinker": null, "requested_accel": null, "cs_enabled": null, "cs_active": null, "curvature": null, "desired_curvature": null, "force_decel": null, "curvature_difference": null, "lead_valid": null, "distance_m": null, "relative_speed_mps": null, "lead_y_m": null, "ttc_s": null, "thw_s": null, "thw_moving_s": null, "left_lane_probability": null, "right_lane_probability": null, "left_lane_y": null, "right_lane_y": null, "fcw": null, "planned_accel": null, "plan_has_lead": null }, { "t": -8.0, "speed_mps": 11.847579002380373, "accel_mps2": -0.1911514699459076, "steer_deg": -0.5808026194572449, 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"自动提取的事实，不代表已经完成画面复核或致因判断。" }