ros2包构建成功后，运行大模型节点并从上位机发出了对应信号值，其接收信号之后显示了成功订阅/image节点，但是不输出生成结果，云端大模型平台也无调用记录
root@ubuntu:~/y_ws# ros2 run racing_vision_ai vision_ai_node
[INFO] [1752326201.479195596] [vision_ai_node]: 成功加载配置文件: /root/y_ws/build/racing_vision_ai/config/vision_ai_config.yaml
[INFO] [1752326201.542515398] [vision_ai_node]: Volcengine Ark client initialized successfully
[INFO] [1752326201.554000601] [vision_ai_node]: Vision AI Node initialized
[INFO] [1752326201.557322902] [vision_ai_node]: Waiting for sign4return=11 signal…
[INFO] [1752326231.737332321] [vision_ai_node]: Received sign4return: 11
[INFO] [1752326231.740951118] [vision_ai_node]: Received trigger signal (sign4return=11), subscribing to image topic…
[INFO] [1752326231.757753837] [vision_ai_node]: Subscribed to /image topic
有大佬能帮忙解答一下吗