Noise reduction method and system for medical chip of Internet of Things

The invention belongs to the technical field of medical chip noise reduction, and particularly relates to a noise reduction method and system for an Internet of Things medical chip. According to the invention, analog signals captured from a sensor can be processed and analyzed by a system in a digital environment, fine processing and analysis of signals in different frequency ranges are facilitated, the resolution of the system to signal characteristics is improved, information about signal fluctuation and periodic change is provided, and the accuracy of the system is improved. According to the method, the dynamic characteristics and the change trend of signals can be known, the system is allowed to filter interference signals according to a specific frequency range, it is ensured that only related vital sign signals are transmitted to a subsequent processing module, signals in a non-specific frequency range are effectively filtered, it is ensured that the system only processes and analyzes effective vital si