无响应驾驶员干预机制:Euro NCAP 2026 新要求与技术实现

前言

Euro NCAP 2026 协议新增”Unresponsive Driver Intervention”测试场景,要求车辆在检测到驾驶员无响应(如突发疾病、深度昏迷)时,能够自动执行安全停车。

这是 DMS 与 ADAS 协同的关键里程碑。


一、Euro NCAP 要求

1.1 测试场景

场景编号 描述 检测要求 响应要求
UDI-01 驾驶员突发昏迷 ≤10秒检测 安全停车
UDI-02 驾驶员心脏病发作 ≤8秒检测 紧急停车
UDI-03 驾驶员深度睡眠 ≤15秒检测 减速停车
UDI-04 驾驶员酒后昏迷 ≤10秒检测 安全停车

1.2 检测标准

“Euro NCAP will now reward ‘unresponsive driver’ interventions – technologies that can detect a medical emergency or extreme intoxication and safely bring the vehicle to a controlled halt.”

— ETSC, January 2026

无响应判定条件:

条件 阈值 说明
持续闭眼 >5 秒 PERCLOS = 100%
无头部运动 >10 秒 头部姿态固定
无方向盘输入 >15 秒 无转向操作
无踏板输入 >15 秒 无油门/刹车
心率异常 可选 生理信号监测

1.3 评分标准

评分项 分值 通过条件
检测响应 40% ≤10秒检测
安全停车 40% 无碰撞停车
危险报警 20% 自动 eCall

二、系统架构

2.1 整体架构

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┌──────────────────────────────────────────────────┐
│ 无响应驾驶员干预系统 │
├──────────────────────────────────────────────────┤
│ │
│ ┌──────────────────────────────────────────┐ │
│ │ 检测模块 │ │
│ ├──────────────────────────────────────────┤ │
│ │ • DMS:眼动追踪、面部检测 │ │
│ │ • 车辆:方向盘、踏板信号 │ │
│ │ • 可选:生理信号(心率、呼吸) │ │
│ └─────────────────┬────────────────────────┘ │
│ v │
│ ┌──────────────────────────────────────────┐ │
│ │ 无响应判定模块 │ │
│ ├──────────────────────────────────────────┤ │
│ │ • 多源信息融合 │ │
│ │ • 时间窗口判断 │ │
│ │ • 置信度计算 │ │
│ └─────────────────┬────────────────────────┘ │
│ v │
│ ┌──────────────────────────────────────────┐ │
│ │ 干预决策模块 │ │
│ ├──────────────────────────────────────────┤ │
│ │ • 风险评估 │ │
│ │ • 路径规划 │ │
│ │ • 干预等级决策 │ │
│ └─────────────────┬────────────────────────┘ │
│ v │
│ ┌──────────────────────────────────────────┐ │
│ │ 执行模块 │ │
│ ├──────────────────────────────────────────┤ │
│ │ • 减速停车 │ │
│ │ • 车道保持 │ │
│ │ • 危险报警灯 │ │
│ │ • eCall 呼叫 │ │
│ └──────────────────────────────────────────┘ │
│ │
└──────────────────────────────────────────────────┘

2.2 状态机设计

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"""
无响应驾驶员干预状态机

状态转换:
Normal → Warning → Emergency → SafeStop → PostEvent
"""

from enum import Enum, auto
from dataclasses import dataclass
from typing import Optional
import time

class DriverState(Enum):
"""驾驶员状态"""
NORMAL = auto()
ATTENTION_WARNING = auto() # 注意力警告
DROWSINESS_WARNING = auto() # 疲劳警告
UNRESPONSIVE_SUSPECTED = auto() # 疑似无响应
UNRESPONSIVE_CONFIRMED = auto() # 确认无响应
SAFE_STOP = auto() # 安全停车
POST_EVENT = auto() # 事后处理

@dataclass
class DriverStatus:
"""驾驶员状态数据"""
state: DriverState
confidence: float
unresponsive_duration: float
last_input_time: float
eye_closure_ratio: float
head_movement_detected: bool

class UnresponsiveDetector:
"""
无响应检测器

核心逻辑:
1. 多源信息融合
2. 时间窗口判断
3. 阈值判定
"""

def __init__(
self,
eye_closure_threshold: float = 0.8, # PERCLOS 阈值
no_input_threshold: float = 15.0, # 无输入时间阈值(秒)
confirmation_time: float = 10.0 # 确认时间(秒)
):
self.eye_closure_threshold = eye_closure_threshold
self.no_input_threshold = no_input_threshold
self.confirmation_time = confirmation_time

# 状态变量
self.current_state = DriverState.NORMAL
self.unresponsive_start_time: Optional[float] = None
self.last_input_time = time.time()

# 历史数据
self.eye_closure_history = []
self.head_movement_history = []
self.steering_history = []

def update(
self,
eye_closure: float,
head_movement: bool,
steering_input: bool,
pedal_input: bool
) -> DriverStatus:
"""
更新状态

Args:
eye_closure: 眼睛闭合程度 (0-1)
head_movement: 是否检测到头部运动
steering_input: 是否有方向盘输入
pedal_input: 是否有踏板输入

Returns:
status: 驾驶员状态
"""
current_time = time.time()

# 更新输入时间
if steering_input or pedal_input:
self.last_input_time = current_time

# 更新历史
self.eye_closure_history.append(eye_closure)
self.head_movement_history.append(head_movement)

# 保持最近 300 帧(10秒 @ 30fps)
max_history = 300
if len(self.eye_closure_history) > max_history:
self.eye_closure_history.pop(0)
self.head_movement_history.pop(0)

# 计算 PERCLOS(最近 60 秒)
perclos = self._calculate_perclos()

# 计算无输入时间
no_input_duration = current_time - self.last_input_time

# 计算无头部运动时间
no_head_movement_duration = self._calculate_no_movement_duration()

# 状态转换
self._update_state(
perclos=perclos,
no_input_duration=no_input_duration,
no_head_movement_duration=no_head_movement_duration
)

# 计算置信度
confidence = self._calculate_confidence(
perclos=perclos,
no_input_duration=no_input_duration,
no_head_movement_duration=no_head_movement_duration
)

# 计算无响应持续时间
unresponsive_duration = 0.0
if self.unresponsive_start_time:
unresponsive_duration = current_time - self.unresponsive_start_time

return DriverStatus(
state=self.current_state,
confidence=confidence,
unresponsive_duration=unresponsive_duration,
last_input_time=self.last_input_time,
eye_closure_ratio=perclos,
head_movement_detected=head_movement
)

def _calculate_perclos(self) -> float:
"""计算 PERCLOS(60秒窗口)"""
if len(self.eye_closure_history) < 30:
return 0.0

# 计算最近数据中闭眼比例
threshold = self.eye_closure_threshold
closed_count = sum(
1 for e in self.eye_closure_history[-180:] # 6秒 @ 30fps
if e > threshold
)
return closed_count / min(len(self.eye_closure_history), 180)

def _calculate_no_movement_duration(self) -> float:
"""计算无头部运动持续时间"""
if not self.head_movement_history:
return 0.0

# 从后往前找最后一次运动
for i in range(len(self.head_movement_history) - 1, -1, -1):
if self.head_movement_history[i]:
return (len(self.head_movement_history) - i - 1) / 30.0

return len(self.head_movement_history) / 30.0

def _update_state(
self,
perclos: float,
no_input_duration: float,
no_head_movement_duration: float
):
"""更新状态"""

# 状态转换逻辑
if self.current_state == DriverState.NORMAL:
if perclos > 0.3:
self.current_state = DriverState.DROWSINESS_WARNING
elif no_input_duration > 5:
self.current_state = DriverState.ATTENTION_WARNING

elif self.current_state == DriverState.ATTENTION_WARNING:
if no_input_duration > 10 and perclos > 0.5:
self.current_state = DriverState.UNRESPONSIVE_SUSPECTED
self.unresponsive_start_time = time.time()
elif no_input_duration < 2:
self.current_state = DriverState.NORMAL

elif self.current_state == DriverState.DROWSINESS_WARNING:
if perclos > 0.8:
self.current_state = DriverState.UNRESPONSIVE_SUSPECTED
self.unresponsive_start_time = time.time()
elif perclos < 0.15:
self.current_state = DriverState.NORMAL

elif self.current_state == DriverState.UNRESPONSIVE_SUSPECTED:
if self.unresponsive_start_time:
elapsed = time.time() - self.unresponsive_start_time
if elapsed > self.confirmation_time:
self.current_state = DriverState.UNRESPONSIVE_CONFIRMED
if no_input_duration < 2 or perclos < 0.3:
self.current_state = DriverState.NORMAL
self.unresponsive_start_time = None

elif self.current_state == DriverState.UNRESPONSIVE_CONFIRMED:
self.current_state = DriverState.SAFE_STOP

def _calculate_confidence(
self,
perclos: float,
no_input_duration: float,
no_head_movement_duration: float
) -> float:
"""计算置信度"""
# 加权求和
confidence = (
perclos * 0.4 +
min(no_input_duration / self.no_input_threshold, 1.0) * 0.3 +
min(no_head_movement_duration / 10.0, 1.0) * 0.3
)
return min(confidence, 1.0)


# 测试
if __name__ == "__main__":
detector = UnresponsiveDetector()

# 模拟正常驾驶
print("模拟正常驾驶...")
for _ in range(30):
status = detector.update(
eye_closure=0.1,
head_movement=True,
steering_input=True,
pedal_input=False
)
print(f"状态: {status.state.name}, 置信度: {status.confidence:.2f}")

# 模拟无响应
print("\n模拟无响应...")
for i in range(300): # 10秒
status = detector.update(
eye_closure=0.95, # 闭眼
head_movement=False, # 无头部运动
steering_input=False, # 无方向盘输入
pedal_input=False
)
if i % 30 == 0:
print(f"第{i//30+1}秒: 状态={status.state.name}, 置信度={status.confidence:.2f}")

三、安全停车策略

3.1 停车路径规划

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"""
安全停车路径规划

目标:
1. 安全减速
2. 保持车道
3. 避免碰撞
4. 选择安全停车点
"""

import numpy as np
from typing import List, Tuple, Optional
from dataclasses import dataclass

@dataclass
class VehicleState:
"""车辆状态"""
x: float # 位置 x
y: float # 位置 y
yaw: float # 航向角
speed: float # 速度 m/s
acceleration: float # 加速度 m/s²

@dataclass
class SafeStopPlan:
"""安全停车计划"""
stop_distance: float # 停车距离
deceleration: float # 减速度
lane_change_required: bool # 是否需要变道
target_lane: int # 目标车道
estimated_time: float # 预计时间

class SafeStopPlanner:
"""
安全停车规划器

策略:
1. 高速:保持车道,减速停车
2. 城市道路:寻找路边停车点
3. 紧急情况:立即停车
"""

def __init__(
self,
max_deceleration: float = 3.0, # 最大减速度 m/s²
target_deceleration: float = 2.0, # 目标减速度
min_stop_distance: float = 50.0 # 最小停车距离
):
self.max_deceleration = max_deceleration
self.target_deceleration = target_deceleration
self.min_stop_distance = min_stop_distance

def plan_stop(
self,
vehicle_state: VehicleState,
lane_info: dict,
traffic_info: dict
) -> SafeStopPlan:
"""
规划安全停车

Args:
vehicle_state: 车辆状态
lane_info: 车道信息
traffic_info: 交通信息

Returns:
plan: 停车计划
"""
speed = vehicle_state.speed

# 计算停车距离
# v² = 2as → s = v²/(2a)
stop_distance = speed ** 2 / (2 * self.target_deceleration)
stop_distance = max(stop_distance, self.min_stop_distance)

# 计算停车时间
stop_time = speed / self.target_deceleration

# 判断是否需要变道
lane_change_required = self._check_lane_change(
vehicle_state, lane_info, traffic_info
)

# 选择目标车道
target_lane = self._select_target_lane(
vehicle_state, lane_info, traffic_info
)

return SafeStopPlan(
stop_distance=stop_distance,
deceleration=self.target_deceleration,
lane_change_required=lane_change_required,
target_lane=target_lane,
estimated_time=stop_time
)

def _check_lane_change(
self,
vehicle_state: VehicleState,
lane_info: dict,
traffic_info: dict
) -> bool:
"""判断是否需要变道"""
# 如果在快车道,需要变道到右侧
current_lane = lane_info.get('current_lane', 1)
num_lanes = lane_info.get('num_lanes', 3)

if current_lane < num_lanes - 1: # 不是最右侧车道
# 检查右侧车道是否安全
right_lane_clear = traffic_info.get('right_lane_clear', True)
return right_lane_clear

return False

def _select_target_lane(
self,
vehicle_state: VehicleState,
lane_info: dict,
traffic_info: dict
) -> int:
"""选择目标车道"""
num_lanes = lane_info.get('num_lanes', 3)
return num_lanes - 1 # 最右侧车道(路肩)

def generate_trajectory(
self,
vehicle_state: VehicleState,
plan: SafeStopPlan,
horizon: float = 5.0,
dt: float = 0.1
) -> List[Tuple[float, float, float]]:
"""
生成停车轨迹

Args:
vehicle_state: 车辆状态
plan: 停车计划
horizon: 规划时域(秒)
dt: 时间步长

Returns:
trajectory: 轨迹点列表 [(x, y, yaw), ...]
"""
trajectory = []

x, y, yaw = vehicle_state.x, vehicle_state.y, vehicle_state.yaw
speed = vehicle_state.speed

num_steps = int(horizon / dt)

for _ in range(num_steps):
# 减速
speed = max(0, speed - plan.deceleration * dt)

# 前进
x += speed * np.cos(yaw) * dt
y += speed * np.sin(yaw) * dt

trajectory.append((x, y, yaw))

if speed < 0.1: # 已停止
break

return trajectory


# 执行控制
class SafeStopController:
"""
安全停车控制器

执行减速、车道保持、停车操作
"""

def __init__(self):
self.planner = SafeStopPlanner()
self.is_active = False
self.current_plan: Optional[SafeStopPlan] = None

def activate(self, vehicle_state: VehicleState):
"""激活安全停车"""
self.is_active = True
print("⚠️ 激活安全停车系统")

def execute(
self,
vehicle_state: VehicleState,
lane_info: dict,
traffic_info: dict
) -> dict:
"""
执行控制

Returns:
control: 控制指令
"""
if not self.is_active:
return {'throttle': 0, 'brake': 0, 'steering': 0}

# 规划
if self.current_plan is None:
self.current_plan = self.planner.plan_stop(
vehicle_state, lane_info, traffic_info
)

# 生成控制指令
brake_pressure = self._calculate_brake(vehicle_state)
steering_angle = self._calculate_steering(vehicle_state, lane_info)

# 检查是否停车完成
if vehicle_state.speed < 0.1:
self._on_stop_complete()

return {
'throttle': 0,
'brake': brake_pressure,
'steering': steering_angle
}

def _calculate_brake(self, vehicle_state: VehicleState) -> float:
"""计算刹车压力"""
if self.current_plan is None:
return 0.5

# 根据 - 速度调整刹车压力
speed_factor = min(vehicle_state.speed / 30.0, 1.0)
brake_pressure = 0.3 + 0.5 * speed_factor

return min(brake_pressure, 1.0)

def _calculate_steering(
self,
vehicle_state: VehicleState,
lane_info: dict
) -> float:
"""计算转向角度"""
# 车道保持控制
lane_center = lane_info.get('lane_center', 0)
current_offset = vehicle_state.y - lane_center

# PID 控制(简化)
steering = -0.1 * current_offset

return np.clip(steering, -0.5, 0.5)

def _on_stop_complete(self):
"""停车完成"""
print("✅ 安全停车完成")
print("📞 激活 eCall...")
self.is_active = False

四、eCall 集成

4.1 eCall 流程

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"""
eCall 自动呼叫系统

符合 ETSI TS 124 229 标准
"""

import time
from typing import Optional
from dataclasses import dataclass
from enum import Enum

class eCallType(Enum):
"""eCall 类型"""
MANUAL = 1 # 手动触发
AUTOMATIC = 2 # 自动触发

@dataclass
class VehicleData:
"""车辆数据"""
vin: str # 车辆识别码
latitude: float # 纬度
longitude: float # 经度
timestamp: float # 时间戳
speed: float # 速度
heading: float # 航向
fuel_level: float # 燃油量
crash_detected: bool # 是否检测到碰撞

class eCallSystem:
"""
eCall 系统

功能:
1. 自动呼叫紧急服务
2. 发送车辆位置和数据
3. 建立语音连接
"""

def __init__(self, psap_number: str = "112"):
self.psap_number = psap_number # 公共安全应答点号码
self.call_active = False
self.vehicle_data: Optional[VehicleData] = None

def trigger(
self,
call_type: eCallType,
vehicle_data: VehicleData
):
"""
触发 eCall

Args:
call_type: 呼叫类型
vehicle_data: 车辆数据
"""
self.vehicle_data = vehicle_data

print(f"📞 触发 eCall ({call_type.name})")
print(f"📍 位置: ({vehicle_data.latitude}, {vehicle_data.longitude})")
print(f"🚗 VIN: {vehicle_data.vin}")

# 发送 MSD(Minimum Set of Data)
self._send_msd(vehicle_data)

# 建立语音连接
self._establish_voice_call()

def _send_msd(self, vehicle_data: VehicleData):
"""
发送最小数据集

MSD 格式符合 ETSI EN 16072
"""
msd = {
'message_identifier': int(time.time()),
'control_indicator': 'auto_call',
'vehicle_identification_number': vehicle_data.vin,
'vehicle_propulsion_storage_type': 'electric',
'vehicle_type': 'passenger_car',
'position': {
'latitude': vehicle_data.latitude,
'longitude': vehicle_data.longitude
},
'timestamp': vehicle_data.timestamp,
'vehicle_heading': vehicle_data.heading,
'number_of_passengers': 1 # 估计值
}

print("📤 发送 MSD...")
# 实际实现:通过蜂窝网络发送
return msd

def _establish_voice_call(self):
"""建立语音连接"""
print(f"📞 拨打 {self.psap_number}...")
self.call_active = True

# 模拟呼叫流程
time.sleep(2)
print("✅ 已连接紧急服务中心")
print("🔊 语音通道已建立")


# 集成到安全停车系统
class IntegratedEmergencySystem:
"""
集成紧急系统

集成:
1. 无响应检测
2. 安全停车
3. eCall 呼叫
"""

def __init__(self):
self.detector = UnresponsiveDetector()
self.controller = SafeStopController()
self.ecall = eCallSystem()

self.emergency_active = False

def update(
self,
eye_closure: float,
head_movement: bool,
steering_input: bool,
pedal_input: bool,
vehicle_state: VehicleState,
lane_info: dict,
traffic_info: dict
):
"""
更新系统状态

Args:
eye_closure: 眼睛闭合程度
head_movement: 头部运动
steering_input: 方向盘输入
pedal_input: 踏板输入
vehicle_state: 车辆状态
lane_info: 车道信息
traffic_info: 交通信息
"""
# 检测驾驶员状态
status = self.detector.update(
eye_closure,
head_movement,
steering_input,
pedal_input
)

# 状态响应
if status.state == DriverState.UNRESPONSIVE_CONFIRMED:
if not self.emergency_active:
self._activate_emergency(vehicle_state)

# 执行控制
if self.emergency_active:
control = self.controller.execute(
vehicle_state, lane_info, traffic_info
)
return control

return None

def _activate_emergency(self, vehicle_state: VehicleState):
"""激活紧急模式"""
self.emergency_active = True

print("🚨 检测到无响应驾驶员!")
print("⚠️ 激活紧急停车程序...")

# 激活控制器
self.controller.activate(vehicle_state)

# 开启危险报警灯
print("💡 开启危险报警灯...")

# 准备 eCall 数据
vehicle_data = VehicleData(
vin="EXAMPLE_VIN_123456",
latitude=31.2304, # 示例
longitude=121.4737,
timestamp=time.time(),
speed=vehicle_state.speed,
heading=vehicle_state.yaw,
fuel_level=0.8,
crash_detected=False
)

# 触发 eCall
self.ecall.trigger(eCallType.AUTOMATIC, vehicle_data)

五、测试验证

5.1 测试场景

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"""
Euro NCAP UDI 测试场景
"""

def test_unresponsive_driver():
"""测试无响应驾驶员场景"""

# 初始化系统
system = IntegratedEmergencySystem()

# 模拟车辆状态
vehicle_state = VehicleState(
x=0, y=0, yaw=0, speed=25.0, acceleration=0
)

lane_info = {'current_lane': 1, 'num_lanes': 3}
traffic_info = {'right_lane_clear': True}

print("=== 测试开始 ===")

# 阶段 1:正常驾驶(5秒)
print("\n阶段 1:正常驾驶")
for i in range(150): # 5秒 @ 30fps
system.update(
eye_closure=0.1,
head_movement=True,
steering_input=(i % 30 == 0), # 每秒有输入
pedal_input=False,
vehicle_state=vehicle_state,
lane_info=lane_info,
traffic_info=traffic_info
)

# 阶段 2:驾驶员无响应(10秒)
print("\n阶段 2:驾驶员无响应")
for i in range(300): # 10秒 @ 30fps
control = system.update(
eye_closure=0.95, # 闭眼
head_movement=False, # 无头部运动
steering_input=False, # 无输入
pedal_input=False,
vehicle_state=vehicle_state,
lane_info=lane_info,
traffic_info=traffic_info
)

# 模拟车辆减速
if control:
vehicle_state.speed = max(0, vehicle_state.speed - 0.5)
print(f" 速度: {vehicle_state.speed:.1f} m/s")

if vehicle_state.speed < 0.1:
print("\n✅ 车辆已安全停止")
break

print("\n=== 测试完成 ===")


if __name__ == "__main__":
test_unresponsive_driver()

六、IMS 开发建议

6.1 功能优先级

优先级 功能 Euro NCAP 得分
P0 无响应检测 20%
P1 安全停车 40%
P1 eCall 集成 20%
P2 变道停车 加分项

6.2 技术挑战

挑战 解决方案
误触发 多源确认 + 时间窗口
安全停车 ADAS 集成 + 路径规划
法规合规 ETSI eCall 标准

总结

无响应驾驶员干预的关键要点:

  1. 检测标准: 持续闭眼 >5秒 + 无输入 >15秒
  2. 响应要求: ≤10秒检测 + 安全停车
  3. 技术路线: DMS + ADAS + eCall 集成
  4. Euro NCAP 评分: 占 20% 权重

参考来源:

  1. Euro NCAP 2026 Safe Driving Protocol
  2. ETSC Analysis, January 2026
  3. ETSI EN 16072 eCall Standard
  4. ETSI TS 124 229 eCall Technical Specification

无响应驾驶员干预机制:Euro NCAP 2026 新要求与技术实现
https://dapalm.com/2026/04/20/2026-04-20-unresponsive-driver-intervention/
作者
Mars
发布于
2026年4月20日
许可协议