US Patent 11256925 Monitoring system and monitoring method thereof

A monitoring system and a monitoring method thereof are provided. The monitoring system includes a thermal imaging device and a processor. The thermal imaging device obtains a thermal imaging image. The processor is coupled to the thermal imaging device. The processor determines a separating distance between a reference thermal source and a target thermal source in the thermal imaging image. The reference thermal source corresponds to a reference position, and the target thermal source corresponds to a target person. The processor determines a current posture corresponding to the target thermal source in the thermal imaging image. The processor transmits an alarm signal according to the separating distance and the current posture. Accordingly, the misgivings for the privacy violation may be ceased, and it is adapted for low light environment.