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| """ DMS 红外补光设计 """
from dataclasses import dataclass from typing import Tuple, List import numpy as np
@dataclass class IRLEDConfig: """红外 LED 配置""" wavelength: int power: float angle: float position: Tuple[float, float, float]
class IRIlluminationSystem: """ 红外补光系统 设计目标: 1. 眼部照度 ≥50 lux(眼镜遮挡后) 2. 均匀度 >0.7 3. 不干扰驾驶员 """ def __init__(self, leds: List[IRLEDConfig]): self.leds = leds self.recommended_config = [ IRLEDConfig(940, 120, 30, (0, 0, 0.3)), IRLEDConfig(940, 80, 45, (-0.15, 0, 0.25)), IRLEDConfig(940, 80, 45, (0.15, 0, 0.25)), ] def calculate_illuminance( self, distance: float, angle_offset: float = 0 ) -> float: """ 计算眼部照度 Args: distance: 距离 (m) angle_offset: 角度偏移 (度) Returns: illuminance: 照度 (lux) """ total_illuminance = 0 for led in self.leds: solid_angle = 2 * np.pi * (1 - np.cos(np.radians(led.angle / 2))) radiance = led.power / solid_angle irradiance = radiance / (distance ** 2) angle_factor = np.cos(np.radians(angle_offset)) irradiance *= angle_factor illuminance = irradiance * 0.1 total_illuminance += illuminance return total_illuminance def estimate_glasses_transmittance( self, glasses_type: str ) -> float: """ 估算眼镜透光率 Args: glasses_type: 眼镜类型 Returns: transmittance: 透光率 (0-1) """ transmittance_db = { 'clear': 0.95, 'blue_light': 0.85, 'light_tint': 0.60, 'dark_tint': 0.40, 'polarized': 0.30 } return transmittance_db.get(glasses_type, 0.8)
if __name__ == "__main__": ir_system = IRIlluminationSystem([]) ir_system.leds = ir_system.recommended_config print("眼部照度计算:") for distance in [0.5, 0.7, 1.0]: illuminance = ir_system.calculate_illuminance(distance) print(f" 距离 {distance}m: {illuminance:.1f} lux") print("\n墨镜遮挡后有效照度:") distance = 0.7 base_illuminance = ir_system.calculate_illuminance(distance) for glasses_type in ['clear', 'light_tint', 'dark_tint', 'polarized']: trans = ir_system.estimate_glasses_transmittance(glasses_type) effective_illuminance = base_illuminance * trans status = "✅" if effective_illuminance >= 50 else "⚠️" print(f" {glasses_type}: {effective_illuminance:.1f} lux {status}")
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