Accurate recognition of cloud type is helpful to improve the forecasting accuracy of photovoltaic power production.In order to solve the problems of cloud type recognition of the ground-based cloud such as complex target candidate box selection and slow detection speed

a recognition method of cloud types in ground-based cloud map based on anchor free is proposed.First

the paper takes Center Net as the basic architecture of cloud type recognition.Based on thermodynamic diagrams prediction

key point prediction

center point prediction and candidate box prediction

a anchor free ground-based cloud type detection process is constructed.And then

the main network

loss function and candidate box prediction method of cloud type recognition model are designed.Finally

take CenterNetResdcn101 as the model

compared the algorithm recognition accuracy

candidate boxes predict confidence and identify speed with mainstream target recognition methods and cloud type recognition method The results showed that the cloud type recognition method of the paper has higher recognition accuracy and faster recognition speed.