对RFID数据的读取，且对提取数据进行K-means聚类分析，异常数据警报，STM32F4平台可以直接使用，只需要改相应引脚。(The reading of RFID data and the k-means clustering analysis of the extracted data, abnormal data alerts, STM32F4 platform can be used directly, only the corresponding pins need to be mo