digraph G {
    SYS -> KWS [color="purple"];
    SYS -> ASR [color="purple"];
    SYS -> LLM [color="purple"];
    SYS -> TTS [color="purple"];
    SYS -> AUDIO [color="purple"];
    SYS -> CAMERA [color="purple"];
    SYS -> VAD [color="purple"];
    SYS -> VLM [color="purple"];
    SYS -> YOLO [color="purple"];
    SYS -> DEPTH [color="purple"];
    KWS -> SYS [color="green"];
    ASR -> SYS [color="green"];
    LLM -> SYS [color="green"];
    TTS -> SYS [color="green"];
    AUDIO -> SYS [color="green"];
    CAMERA -> SYS [color="green"];
    VAD -> SYS  [color="green"];
    VLM -> SYS  [color="green"];
    YOLO -> SYS  [color="green"];
    DEPTH -> SYS  [color="green"];
    AUDIO -> KWS  [color="blue"];
    AUDIO -> ASR  [color="blue"];
    AUDIO -> VAD  [color="blue"];
    CAMERA -> YOLO [color="blue"];
    CAMERA -> DEPTH [color="blue"];
    CAMERA -> VLM [color="blue"];
    ASR -> VLM  [color="blue"];
    VLM -> TTS [color="blue"];
    KWS -> ASR [color="blue"];
    KWS -> LLM [color="blue"];
    KWS -> AUDIO [color="blue"];
    ASR -> LLM [color="blue"];
    LLM -> TTS [color="blue"];
    TTS -> AUDIO [color="blue"];
}