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| """
MEAA Biosensing 系统架构（基于公开信息推断）
"""
from dataclasses import dataclass
from enum import Enum
from typing import Optional
class AlertLevel(Enum):
NORMAL = 0
ATTENTION = 1
WARNING = 2
CRITICAL = 3
@dataclass
class BioSignal:
heart_rate: Optional[float] = None
hrv: Optional[float] = None
resp_rate: Optional[float] = None
stress_index: Optional[float] = None
bp_proxy: Optional[float] = None
confidence: float = 0.0
class BiosensingEngine:
"""
座舱生物传感融合引擎
输入: 摄像头rPPG + 雷达微动 + 座椅压力
输出: 综合生理状态 + 风险等级 + ADAS建议
"""
def __init__(self):
self.rppg_extractor = RPPGModule()
self.radar_processor = MicroDopplerModule()
self.seat_pressure = PressureMatModule()
self.fusion = SensorFusion()
self.thresholds = self._init_thresholds()
def _init_thresholds(self):
return {
'hr': {'normal': (60, 100), 'warn': (50, 120), 'critical': (40, 140)},
'hrv': {'normal': (30, 100), 'warn': (20, 30), 'critical': (0, 20)},
'resp': {'normal': (12, 20), 'warn': (8, 25), 'critical': (6, 30)},
'stress': {'normal': 0.3, 'warn': 0.6, 'critical': 0.8}
}
def assess(self, bio: BioSignal) -> dict:
"""评估生理状态"""
alerts = []
for metric, ranges in self.thresholds.items():
val = getattr(bio, f"{'hr' if metric=='hr' else metric}")
if val is None:
continue
normal, warn, critical = ranges['normal'], ranges['warn'], ranges['critical']
if val < critical[0] or val > critical[1]:
alerts.append((metric, AlertLevel.CRITICAL))
elif val < warn[0] or val > warn[1]:
alerts.append((metric, AlertLevel.WARNING))
elif val < normal[0] or val > normal[1]:
alerts.append((metric, AlertLevel.ATTENTION))
adas_action = self._recommend_adas(alerts, bio)
return {
'signals': bio,
'alerts': alerts,
'adas_recommendation': adas_action
}
def _recommend_adas(self, alerts, bio):
"""基于生理状态推荐 ADAS 动作"""
critical = [a for a in alerts if a[1] == AlertLevel.CRITICAL]
warning = [a for a in alerts if a[1] == AlertLevel.WARNING]
if critical:
return {
'action': 'controlled_stop',
'reason': f'Critical: {critical[0][0]}',
'advice': '安全停车，联系紧急服务'
}
elif warning:
return {
'action': 'increase_adas_level',
'reason': f'Warning: {warning[0][0]}',
'advice': '提升辅助等级，加强监控'
}
return {'action': 'normal', 'reason': 'OK', 'advice': None}
|