[Retracted] Physical Education Teaching Strategy under Internet of Things Data Computing Intelligence Analysis

Table 2

Experimental principles.

Experimental principles	Specific meanings
Scientific principle	According to this principle, experimental materials, the methods, the selected subjects, and the processing method of the results must be scientific. In terms of experimental subjects, it is ensured that the number of experimental group and control group is the same, and the experiment should be carried out secretly
Comparative principle	It means that the image processing system is used in the tennis serving course. The experimental process should not be affected by other factors. The influence of objective factors shall be eliminated as far as possible in the experimental process. Moreover, it is ensured that the number of subjects, places, equipment, and course content is consistent with the course time
Control single variable	The variable to be controlled in this experiment is the teaching method. This means that the experimental group can only use the video image processing and recognition system, and the control group can only use the traditional teaching method, which are the most basic and important conditions in the experiment. Whether the experimental results are persuasive depends on the principle of controlling a single variable