class OAX7700:
    """
    OMNIVISION OAX7700: Always-On Vision AI伴侣处理器
    
    核心能力：
    1. 超低功耗持续监测（比现有方案省97%功耗）
    2. NPU边缘AI（人检测/物体分类/距离测量）
    3. 威胁确认+误报过滤
    4. 5-10秒Pre-roll录像
    5. OTA算法更新
    """
    
    specs = {
        "processor": "ASIC + NPU",
        "package": "5.5mm × 3.5mm, 60-pin BGA",
        "memory": "Stacked PSRAM + Flash",
        "power_mode": {
            "always_on": "极低功耗（持续监测）",
            "normal": "全功能（事件触发后）"
        },
        "ai_functions": [
            "human_presence_detection",
            "person_and_object_detection",
            "distance_measurement",
            "threat_classification",
            "false_alarm_filtering"
        ],
        "pre_roll": "5-10秒事件前录像",
        "ota": "支持远程算法更新",
        "production": "2027 Q1"
    }

# OAX7700在座舱内的潜在应用（推断）
cabin_applications = {
    "always_on_cpd": {
        "description": "超低功耗儿童检测",
        "advantage": "引擎关闭后持续监测，不耗电瓶",
        "ncap": "Euro NCAP CPD要求"
    },
    "always_on_security": {
        "description": "车内入侵检测",
        "advantage": "97%功耗降低，不增加电瓶负担"
    },
    "occupant_monitoring": {
        "description": "乘员状态监测（低功耗模式）",
        "advantage": "无需唤醒主SoC即可完成基础检测"
    }
}