P1
node [shape=box ,style=dashed,color=blue]
subgraph cluster_sensors {
sensors [label="摄像头\n雷达\n车载传感器"]
subgraph cluster_data_processing {
data_processing [label="数据预处理\n特征提取\n数据分析"]
subgraph cluster_communication {
communication [label="V2V通信\nV2I通信"]
subgraph cluster_decision_control {
decision_control [label="交通流量优化\n信号灯控制\n路径规划"]
subgraph cluster_user_interface {
user_interface [label="移动应用程序\n网页界面"]
external_data [label="外部数据源"]
traffic_center [label="交通管理中心",shape=circle, style=filled, fillcolor=yellow]
external_data -> communication