guanlan-src/reference/rudong/oem_scan_plan.json

{
 "_来源": "逆向工程产物 (2026-09-17): 从随包件 outputs/rudong/m5_cms_tcm/oem_frequency_scan.parquet 提取 —— 它每行带 (component, sensor, shard, option, dx_hz), 是**机型级扫描配置**(该轴承用哪条谱、什么分辨率), 与 data/raw 无关。",
 "_性质": "机型常量(哪条谱扫哪个部件), 不是原始数据的函数; 唯一权威来源就是那份随包件, 故原样固化在此, 便于实现端读取。",
 "_与理论表的关系": "option 串 → reference/rudong/oem_bearing_freqs.json 的条目: 先取位置 token(Pos.150R→150r; 139.1/1060 f-576853.PRL→1391/1060; 6338 M/C3→6338m/c3), 同位置多候选(NSK/FAG)时用 option 里的型号 token 定夺。实测 11/11 组件的 BPFI/BPFO/BSF 与样件 *_hz 列逐值一致。",
 "components": [
  {"component": "generator_de_6338",       "sensor": "Generator_DE",          "shard": "Env_6000_4000_850_Tr", "dx_hz": 1.0625, "option": "6338 M/C3"},
  {"component": "generator_nde_6338",      "sensor": "Generator_NDE",         "shard": "Env_6000_4000_850_Tr", "dx_hz": 1.0625, "option": "6338 M/C3"},
  {"component": "hs_generator_left",       "sensor": "Gear_HS_generator_side", "shard": "FFT_6000_Tr",          "dx_hz": 0.9375, "option": "NSK/FAG Pos.150L"},
  {"component": "hs_generator_right_fag",  "sensor": "Gear_HS_generator_side", "shard": "FFT_6000_Tr",          "dx_hz": 0.9375, "option": "FAG F-581491.01.TR2SK Pos.150R"},
  {"component": "hs_generator_right_nsk",  "sensor": "Gear_HS_generator_side", "shard": "FFT_6000_Tr",          "dx_hz": 0.9375, "option": "NSK Pos.150R"},
  {"component": "hs_rotor",                "sensor": "Gear_HS_rotor_side",     "shard": "FFT_6000_Tr",          "dx_hz": 0.9375, "option": "NSK/FAG Pos.151"},
  {"component": "ims_generator_fag",       "sensor": "Gear_IMS",               "shard": "FFT_2000_fast_Tr",     "dx_hz": 0.625,  "option": "FAG F-581492.TR2S Pos.450"},
  {"component": "ims_generator_nsk",       "sensor": "Gear_IMS",               "shard": "FFT_2000_fast_Tr",     "dx_hz": 0.625,  "option": "NSK Pos.450"},
  {"component": "ims_rotor",               "sensor": "Gear_IMS",               "shard": "FFT_2000_fast_Tr",     "dx_hz": 0.625,  "option": "NSK/FAG Pos.451"},
  {"component": "main_front",              "sensor": "Main_bearing_front",     "shard": "FFT_62_Tr",            "dx_hz": 0.03875, "option": "139.1/1060 f-576853.PRL"},
  {"component": "main_rear",               "sensor": "Main_bearing_rear",      "shard": "FFT_62_Tr",            "dx_hz": 0.03875, "option": "240.1/800 F-605082.PRL"}
 ],
 "windows_seen_in_sample": ["w0127", "w0707", "w0711", "w0724", "w0805", "w0811"],
 "ratio_columns": {
  "BPFI_fleet_ratio": "观测 BPFI 频率 / BPFI_hz（舰队基线）—— 分子待峰值拾取口径",
  "BPFI_local_ratio": "观测 BPFI 频率 / BPFI_hz（本机局部基线）—— 分子待峰值拾取口径"
 }
}